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Martins SG, Ribeiro V, Melo C, Paulino-Cavaco C, Antonini D, Dayalan Naidu S, Murtinheira F, Fonseca I, Saget B, Pita M, Fernandes DR, Gameiro Dos Santos P, Rodrigues G, Zilhão R, Herrera F, Dinkova-Kostova AT, Carlos AR, Thorsteinsdóttir S. Laminin-α2 chain deficiency in skeletal muscle causes dysregulation of multiple cellular mechanisms. Life Sci Alliance 2024; 7:e202402829. [PMID: 39379105 DOI: 10.26508/lsa.202402829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 09/13/2024] [Accepted: 09/13/2024] [Indexed: 10/10/2024] Open
Abstract
LAMA2, coding for the laminin-α2 chain, is a crucial ECM component, particularly abundant in skeletal muscle. Mutations in LAMA2 trigger the often-lethal LAMA2-congenital muscular dystrophy (LAMA2-CMD). Various phenotypes have been linked to LAMA2-CMD; nevertheless, the precise mechanisms that malfunction during disease onset in utero remain unknown. We generated Lama2-deficient C2C12 cells and found that Lama2-deficient myoblasts display proliferation, differentiation, and fusion defects, DNA damage, oxidative stress, and mitochondrial dysfunction. Moreover, fetal myoblasts isolated from the dy W mouse model of LAMA2-CMD display impaired differentiation and fusion in vitro. We also showed that disease onset during fetal development is characterized by a significant down-regulation of gene expression in muscle fibers, causing pronounced effects on cytoskeletal organization, muscle differentiation, and altered DNA repair and oxidative stress responses. Together, our findings provide unique insights into the critical importance of the laminin-α2 chain for muscle differentiation and muscle cell homeostasis.
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Affiliation(s)
- Susana G Martins
- https://ror.org/01c27hj86 Centre for Ecology, Evolution and Environmental Changes (CE3C) & CHANGE, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- https://ror.org/01c27hj86 Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Vanessa Ribeiro
- https://ror.org/01c27hj86 Centre for Ecology, Evolution and Environmental Changes (CE3C) & CHANGE, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- https://ror.org/01c27hj86 Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Catarina Melo
- https://ror.org/01c27hj86 Centre for Ecology, Evolution and Environmental Changes (CE3C) & CHANGE, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- https://ror.org/01c27hj86 Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Cláudia Paulino-Cavaco
- https://ror.org/01c27hj86 Centre for Ecology, Evolution and Environmental Changes (CE3C) & CHANGE, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- https://ror.org/01c27hj86 Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Dario Antonini
- Department of Biology, University of Naples "Federico II", Naples, Italy
| | - Sharadha Dayalan Naidu
- Jacqui Wood Cancer Centre, Division of Cellular and Systems Medicine, School of Medicine, University of Dundee, Dundee, UK
| | - Fernanda Murtinheira
- https://ror.org/01c27hj86 Biosystems and Integrative Sciences Institute (BioISI), Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- https://ror.org/01c27hj86 Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Inês Fonseca
- https://ror.org/01c27hj86 Centre for Ecology, Evolution and Environmental Changes (CE3C) & CHANGE, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- https://ror.org/01c27hj86 Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Bérénice Saget
- https://ror.org/01c27hj86 Centre for Ecology, Evolution and Environmental Changes (CE3C) & CHANGE, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- https://ror.org/01c27hj86 Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Mafalda Pita
- https://ror.org/01c27hj86 Centre for Ecology, Evolution and Environmental Changes (CE3C) & CHANGE, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- https://ror.org/01c27hj86 Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Diogo R Fernandes
- https://ror.org/01c27hj86 Centre for Ecology, Evolution and Environmental Changes (CE3C) & CHANGE, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- https://ror.org/01c27hj86 Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Pedro Gameiro Dos Santos
- https://ror.org/01c27hj86 Centre for Ecology, Evolution and Environmental Changes (CE3C) & CHANGE, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- https://ror.org/01c27hj86 Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Gabriela Rodrigues
- https://ror.org/01c27hj86 Centre for Ecology, Evolution and Environmental Changes (CE3C) & CHANGE, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- https://ror.org/01c27hj86 Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Rita Zilhão
- https://ror.org/01c27hj86 Centre for Ecology, Evolution and Environmental Changes (CE3C) & CHANGE, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- https://ror.org/01c27hj86 Departamento de Biologia Vegetal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Federico Herrera
- https://ror.org/01c27hj86 Biosystems and Integrative Sciences Institute (BioISI), Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- https://ror.org/01c27hj86 Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Albena T Dinkova-Kostova
- Jacqui Wood Cancer Centre, Division of Cellular and Systems Medicine, School of Medicine, University of Dundee, Dundee, UK
| | - Ana Rita Carlos
- https://ror.org/01c27hj86 Centre for Ecology, Evolution and Environmental Changes (CE3C) & CHANGE, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- https://ror.org/01c27hj86 Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Sólveig Thorsteinsdóttir
- https://ror.org/01c27hj86 Centre for Ecology, Evolution and Environmental Changes (CE3C) & CHANGE, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- https://ror.org/01c27hj86 Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
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2
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Hernandez-Jimenez R, Patel A, Machado-Olavarria A, Mathieu H, Guergues J, Wohlfahrt J, Stevens SM, Dharap A. Cellular Resiliency and Survival of a Neuro-2a Cell Line Under Extreme Stress. Exp Cell Res 2024:114275. [PMID: 39383928 DOI: 10.1016/j.yexcr.2024.114275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 08/08/2024] [Accepted: 10/03/2024] [Indexed: 10/11/2024]
Abstract
The study investigates the survival and recovery of Neuro-2a (N2a) cells following a cryogenic storage failure that exposed them to extreme stress conditions, such as hypoxia, hypothermia, and acute toxicity. Remarkably, a small fraction of the cells survived and eventually recovered. To understand the underlying resilience mechanisms, we created a model to replicate the dewar failure event and examined changes in phenotype, transcriptomics, proteomics, and mitochondrial activity of the surviving cells during recovery. The results revealed that the surviving cells initially displayed a stressed morphology, with irregular membranes and clustering. They showed increased expression of proteins related to DNA repair and chromatin modification pathways, as well as heightened mitochondrial function, shortly after the stress event. As recovery progressed, these stress-responsive pathways and mitochondrial activity normalized, indicating a return to a stable state. These findings suggest that an initial robust energetic state supports key stress-responsive pathways, facilitating cell survival and recovery after extreme stress. This work provides valuable insights into cellular resilience mechanisms, with potential implications for improving cell preservation and recovery in biomedical applications and developing therapeutic strategies for conditions involving cell damage and stress.
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Affiliation(s)
- Randall Hernandez-Jimenez
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida 33612, United States; Byrd Alzheimer's Center & Research Institute, University of South Florida, Tampa, Florida 33612, United States
| | - Ankit Patel
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida 33612, United States; Byrd Alzheimer's Center & Research Institute, University of South Florida, Tampa, Florida 33612, United States
| | - Ana Machado-Olavarria
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida 33612, United States; Byrd Alzheimer's Center & Research Institute, University of South Florida, Tampa, Florida 33612, United States
| | - Hailey Mathieu
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida 33612, United States; Byrd Alzheimer's Center & Research Institute, University of South Florida, Tampa, Florida 33612, United States
| | - Jennifer Guergues
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL, 33620, United States
| | - Jessica Wohlfahrt
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL, 33620, United States
| | - Stanley M Stevens
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL, 33620, United States
| | - Ashutosh Dharap
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida 33612, United States; Byrd Alzheimer's Center & Research Institute, University of South Florida, Tampa, Florida 33612, United States.
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3
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Xu L, Tan C, Barr J, Talaba N, Verheyden J, Chin JS, Gaboyan S, Kasaraneni N, Elgamal RM, Gaulton KJ, Lin G, Afshar K, Golts E, Meier A, Alexander LEC, Borok Z, Shen Y, Chung WK, McCulley DJ, Sun X. Context-dependent roles of mitochondrial LONP1 in orchestrating the balance between airway progenitor versus progeny cells. Cell Stem Cell 2024; 31:1465-1483.e6. [PMID: 39181129 DOI: 10.1016/j.stem.2024.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 06/12/2024] [Accepted: 08/01/2024] [Indexed: 08/27/2024]
Abstract
While all eukaryotic cells are dependent on mitochondria for function, in a complex tissue, which cell type and which cell behavior are more sensitive to mitochondrial deficiency remain unpredictable. Here, we show that in the mouse airway, compromising mitochondrial function by inactivating mitochondrial protease gene Lonp1 led to reduced progenitor proliferation and differentiation during development, apoptosis of terminally differentiated ciliated cells and their replacement by basal progenitors and goblet cells during homeostasis, and failed airway progenitor migration into damaged alveoli following influenza infection. ATF4 and the integrated stress response (ISR) pathway are elevated and responsible for the airway phenotypes. Such context-dependent sensitivities are predicted by the selective expression of Bok, which is required for ISR activation. Reduced LONP1 expression is found in chronic obstructive pulmonary disease (COPD) airways with squamous metaplasia. These findings illustrate a cellular energy landscape whereby compromised mitochondrial function could favor the emergence of pathological cell types.
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Affiliation(s)
- Le Xu
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Chunting Tan
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Justinn Barr
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Nicole Talaba
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Jamie Verheyden
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Ji Sun Chin
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Samvel Gaboyan
- Pulmonary and Critical Care Section, Veterans Affairs San Diego Healthcare System, La Jolla, CA, USA; Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Nikita Kasaraneni
- Pulmonary and Critical Care Section, Veterans Affairs San Diego Healthcare System, La Jolla, CA, USA; Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Ruth M Elgamal
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Kyle J Gaulton
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Grace Lin
- Department of Pathology, University of California, San Diego, La Jolla, CA, USA
| | - Kamyar Afshar
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Eugene Golts
- Department of Surgery, Division of Cardiovascular and Thoracic Surgery, University of California, San Diego, La Jolla, CA, USA
| | - Angela Meier
- Department of Anesthesiology, Division of Critical Care, University of California, San Diego, La Jolla, CA, USA
| | - Laura E Crotty Alexander
- Pulmonary and Critical Care Section, Veterans Affairs San Diego Healthcare System, La Jolla, CA, USA; Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Zea Borok
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Yufeng Shen
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Biomedical Informatics, Columbia University Irving Medical Center, New York, NY 10032, USA; JP Sulzberger Columbia Genome Center, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Wendy K Chung
- Department of Pediatrics, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - David J McCulley
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Xin Sun
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA; Department of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA 92093, USA.
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4
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Zhu K, Liu Y, Dai R, Wang X, Li J, Lin Z, Du L, Guo J, Ju Y, Zhu W, Wang L, Cao CM. p85α deficiency alleviates ischemia-reperfusion injury by promoting cardiomyocyte survival. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167318. [PMID: 38909849 DOI: 10.1016/j.bbadis.2024.167318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 05/28/2024] [Accepted: 06/17/2024] [Indexed: 06/25/2024]
Abstract
Myocardial ischemia-reperfusion (I/R) injury is a prevalent cause of myocardial injury, involving a series of interconnected pathophysiological processes. However, there is currently no clinical therapy for effectively mitigating myocardial I/R injury. Here, we show that p85α protein levels increase in response to I/R injury through a comprehensive analysis of cardiac proteomics, and confirm this in the I/R-injured murine heart and failing human myocardium. Genetic inhibition of p85α in mice activates the Akt-GSK3β/Bcl-x(L) signaling pathway and ameliorates I/R-induced cardiac dysfunction, apoptosis, inflammation, and mitochondrial dysfunction. p85α silencing in cardiomyocytes alleviates hypoxia-reoxygenation (H/R) injury through activating the Akt-GSK3β/Bcl-x(L) signaling pathway, while its overexpression exacerbates the damage. Mechanistically, the interaction between MG53 and p85α triggers the ubiquitination and degradation of p85α, consequently enhancing Akt phosphorylation and ultimately having cardioprotective effects. Collectively, our findings reveal that substantial reduction of p85α and subsequently activated Akt signaling have a protective effect against cardiac I/R injury, representing an important therapeutic strategy for mitigating myocardial damage.
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Affiliation(s)
- Kun Zhu
- Laboratory of Cardiovascular Science, Beijing Clinical Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Yangli Liu
- Laboratory of Cardiovascular Science, Beijing Clinical Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Rilei Dai
- Laboratory of Cardiovascular Science, Beijing Clinical Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Xun Wang
- Laboratory of Cardiovascular Science, Beijing Clinical Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Jingchen Li
- Laboratory of Cardiovascular Science, Beijing Clinical Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Zhiheng Lin
- Laboratory of Cardiovascular Science, Beijing Clinical Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Leilei Du
- Laboratory of Cardiovascular Science, Beijing Clinical Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Jing Guo
- Laboratory of Cardiovascular Science, Beijing Clinical Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Yingjiao Ju
- Laboratory of Cardiovascular Science, Beijing Clinical Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Wenting Zhu
- Laboratory of Cardiovascular Science, Beijing Clinical Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Li Wang
- State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Chun-Mei Cao
- Laboratory of Cardiovascular Science, Beijing Clinical Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China.
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Sreedevi K, Zaitsev AV, Doku A, Thomas R, James A, Do S, Zhang M, Sedovy MW, Leng X, Dennison CL, Johnstone SR, Kirk JA, Yan Z, Warren JS. Adeno-associated virus-mediated gene delivery of Perm1 enhances cardiac contractility in mice. Am J Physiol Heart Circ Physiol 2024; 327:H1112-H1118. [PMID: 39269449 DOI: 10.1152/ajpheart.00545.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2024] [Revised: 09/03/2024] [Accepted: 09/11/2024] [Indexed: 09/15/2024]
Abstract
Reduced muscle contractility and mitochondrial bioenergetics are the hallmarks of systolic heart failure. There is currently no therapy targeting both. Here, we show that gene delivery of Perm1 via adeno-associated virus (AAV) simultaneously enhances cardiac contractility and mitochondrial biogenesis in C57BL6 mice. Moreover, we found that PERM1 interacts with troponin C (TnC), a key contractile protein in striated muscle, and that AAV-Perm1 led to the upregulation of TnC. This study suggests that gene delivery of Perm1 may be a novel therapeutic approach to treat systolic heart failure by simultaneously restoring cardiac contractility and mitochondrial bioenergetics.NEW & NOTEWORTHY Perm1 gene delivered with AAV9 enhances cardiac contractility in mice, and it is concomitant with the increase of mitochondrial bioenergetics and upregulation of TnC. This is the first study showing that PERM1, previously known as a striated muscle-specific mitochondrial regulator, also positively regulates cardiac contractility.
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Affiliation(s)
- Karthi Sreedevi
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, Virginia, United States
- Center for Vascular and Heart Research, Fralin Biomedical Research Institute, Virginia Tech, Roanoke, Virginia, United States
| | - Alexey V Zaitsev
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, Virginia, United States
- Center for Vascular and Heart Research, Fralin Biomedical Research Institute, Virginia Tech, Roanoke, Virginia, United States
| | - Abigail Doku
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, Virginia, United States
- Translational Biology Medicine and Health Graduate Program, Virginia Tech, Blacksburg, Virginia, United States
- Center for Vascular and Heart Research, Fralin Biomedical Research Institute, Virginia Tech, Roanoke, Virginia, United States
| | - Rebekah Thomas
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, Virginia, United States
- Translational Biology Medicine and Health Graduate Program, Virginia Tech, Blacksburg, Virginia, United States
- Center for Vascular and Heart Research, Fralin Biomedical Research Institute, Virginia Tech, Roanoke, Virginia, United States
| | - Amina James
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, Virginia, United States
- Department of Human Nutrition, Food and Exercise, Virginia Tech, Blacksburg, Virginia, United States
- Center for Vascular and Heart Research, Fralin Biomedical Research Institute, Virginia Tech, Roanoke, Virginia, United States
| | - Sara Do
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, Virginia, United States
- Center for Vascular and Heart Research, Fralin Biomedical Research Institute, Virginia Tech, Roanoke, Virginia, United States
| | - Mei Zhang
- Fralin Biomedical Research Institute, Center for Exercise Medicine Research at Virginia Tech Carilion, Roanoke, Virginia, United States
| | - Meghan W Sedovy
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, Virginia, United States
- Translational Biology Medicine and Health Graduate Program, Virginia Tech, Blacksburg, Virginia, United States
- Center for Vascular and Heart Research, Fralin Biomedical Research Institute, Virginia Tech, Roanoke, Virginia, United States
| | - Xinyan Leng
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, Virginia, United States
- Center for Vascular and Heart Research, Fralin Biomedical Research Institute, Virginia Tech, Roanoke, Virginia, United States
| | - Clare L Dennison
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, Virginia, United States
- Center for Vascular and Heart Research, Fralin Biomedical Research Institute, Virginia Tech, Roanoke, Virginia, United States
- Tissue Processing Core at Fralin Biomedical Research Institute, Virginia Tech, Roanoke, Virginia, United States
| | - Scott R Johnstone
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, Virginia, United States
- Center for Vascular and Heart Research, Fralin Biomedical Research Institute, Virginia Tech, Roanoke, Virginia, United States
- Department of Biological Sciences, College of Science, Virginia Tech, Roanoke, Virginia, United States
- Department of Surgery, Virginia Tech Carilion School of Medicine, Roanoke, Virginia, United States
| | - Jonathan A Kirk
- Department of Cell and Molecular Physiology, Loyola University Chicago, Chicago, Illinois, United States
| | - Zhen Yan
- Department of Human Nutrition, Food and Exercise, Virginia Tech, Blacksburg, Virginia, United States
- Fralin Biomedical Research Institute, Center for Exercise Medicine Research at Virginia Tech Carilion, Roanoke, Virginia, United States
| | - Junco S Warren
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Virginia Tech, Roanoke, Virginia, United States
- Department of Human Nutrition, Food and Exercise, Virginia Tech, Blacksburg, Virginia, United States
- Center for Vascular and Heart Research, Fralin Biomedical Research Institute, Virginia Tech, Roanoke, Virginia, United States
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6
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Yin L, Yuan L, Luo Z, Tang Y, Lin X, Wang S, Liang P, Huang L, Jiang B. COX-2 optimizes cardiac mitochondrial biogenesis and exerts a cardioprotective effect during sepsis. Cytokine 2024; 182:156733. [PMID: 39128194 DOI: 10.1016/j.cyto.2024.156733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 08/05/2024] [Accepted: 08/06/2024] [Indexed: 08/13/2024]
Abstract
BACKGROUND Septic cardiomyopathy is a component of multiple organ dysfunction in sepsis. Mitochondrial dysfunction plays an important role in septic cardiomyopathy. Studies have shown that cyclooxygenase-2 (COX-2) had a protective effect on the heart, and prostaglandin E2 (PGE2), the downstream product of COX-2, was increasingly recognized to have a protective effect on mitochondrial function. OBJECTIVE This study aims to demonstrate that COX-2/PGE2 can protect against septic cardiomyopathy by regulating mitochondrial function. METHODS Cecal ligation and puncture (CLP) was used to establish a mouse model of sepsis and RAW264.7 macrophages and H9C2 cells were used to simulate sepsis in vitro. The NS-398 and celecoxib were used to inhibit the activity of COX-2. ZLN005 and SR18292 were used to activate or inhibit the PGC-1α activity. The mitochondrial biogenesis was examined through the Mitotracker Red probe, mtDNA copy number, and ATP content detection. RESULTS The experimental data suggested that COX-2 inhibition attenuated PGC-1α expression thus decreasing mitochondrial biogenesis, whereas increased PGE2 could promote mitochondrial biogenesis by activating PGC-1α. The results also showed that the effect of COX-2/PGE2 on PGC-1α was mediated by the activation of cyclic adenosine monophosphate (cAMP) response element binding protein (CREB). Finally, the effect of COX-2/PGE2 on the heart was also verified in the septic mice. CONCLUSION Collectively, these results suggested that COX-2/PGE2 pathway played a cardioprotective role in septic cardiomyopathy through improving mitochondrial biogenesis, which has changed the previous understanding that COX-2/PGE2 only acted as an inflammatory factor.
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Affiliation(s)
- Leijing Yin
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan Province, PR China; Department of Pathology, The Third Xiangya Hospital, Central South University, Changsha, Hunan Province, PR China
| | - Ludong Yuan
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan Province, PR China; Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, Hunan Province, PR China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan Province, PR China
| | - Zhengyang Luo
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan Province, PR China; Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, Hunan Province, PR China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan Province, PR China
| | - Yuting Tang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan Province, PR China; Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, Hunan Province, PR China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan Province, PR China
| | - Xiaofang Lin
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan Province, PR China; Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, Hunan Province, PR China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan Province, PR China
| | - Shuxin Wang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan Province, PR China; Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, Hunan Province, PR China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan Province, PR China
| | - Pengfei Liang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan Province, PR China
| | - Lingjin Huang
- Department of Cardiothoracic Surgery, Xiangya Hospital Central South University, Changsha, PR China.
| | - Bimei Jiang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan Province, PR China; Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, Hunan Province, PR China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, Hunan Province, PR China.
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7
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Jack BU, Dias S, Pheiffer C. Comparative Effects of Tumor Necrosis Factor Alpha, Lipopolysaccharide, and Palmitate on Mitochondrial Dysfunction in Cultured 3T3-L1 Adipocytes. Cell Biochem Biophys 2024:10.1007/s12013-024-01522-3. [PMID: 39269560 DOI: 10.1007/s12013-024-01522-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2024] [Indexed: 09/15/2024]
Abstract
We have previously reported that dysregulated lipid metabolism and inflammation in 3T3-L1 adipocytes is attributed to tumor necrosis factor alpha (TNFα) rather than lipopolysaccharide (LPS) and palmitate (PA). In this study, we further compared the modulative effects of TNFα, LPS, and PA on mitochondrial function by treating 3T3-L1 adipocytes with TNFα (10 ng/mL), LPS (100 ng/mL), and PA (0.75 mM) individually or in combination for 24 h. Results showed a significant reduction in intracellular adenosine triphosphate (ATP) content, mitochondrial bioenergetics, total antioxidant capacity, and the mRNA expression of citrate synthase (Cs), sirtuin 3 (Sirt3), protein kinase AMP-activated catalytic subunit alpha 2 (Prkaa2), peroxisome proliferator-activated receptor gamma coactivator 1 alpha (Ppargc1α), nuclear respiratory factor 1 (Nrf1), and superoxide dismutase 1 (Sod1) in cells treated with TNFα individually or in combination with LPS and PA. Additionally, TNFα treatments decreased insulin receptor substrate 1 (Irs1), insulin receptor substrate 2 (Irs2), solute carrier family 2, facilitated glucose transporter member 4 (Slc2a4), and phosphoinositide 3 kinase regulatory subunit 1 (Pik3r1) mRNA expression. Treatment with LPS and PA alone, or in combination, did not affect the assessed metabolic parameters, while the combination of LPS and PA increased lipid peroxidation. These results show that TNFα but not LPS and PA dysregulate mitochondrial function, thus inducing oxidative stress and impaired insulin signaling in 3T3-L1 adipocytes. This suggests that TNFα treatment can be used as a basic in vitro model for studying the pathophysiology of mitochondrial dysfunction and related metabolic complications and screening potential anti-obesity therapeutics in 3T3-L1 adipocytes.
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Affiliation(s)
- Babalwa Unice Jack
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, Cape Town, 7505, South Africa.
- Centre for Cardiometabolic Research in Africa, Division of Medical Physiology, Stellenbosch University, Tygerberg, Cape Town, 7505, South Africa.
| | - Stephanie Dias
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, Cape Town, 7505, South Africa
| | - Carmen Pheiffer
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg, Cape Town, 7505, South Africa
- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, University of Pretoria, Pretoria, 0001, South Africa
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8
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Yoshida T, Latt KZ, Rosenberg AZ, Santo BA, Myakala K, Ishimoto Y, Zhao Y, Shrivastav S, Jones BA, Yang X, Wang XX, Tutino VM, Sarder P, Levi M, Okamoto K, Winkler CA, Kopp JB. PKR activation-induced mitochondrial dysfunction in HIV-transgenic mice with nephropathy. eLife 2024; 12:RP91260. [PMID: 39207915 PMCID: PMC11361708 DOI: 10.7554/elife.91260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024] Open
Abstract
HIV disease remains prevalent in the USA and chronic kidney disease remains a major cause of morbidity in HIV-1-positive patients. Host double-stranded RNA (dsRNA)-activated protein kinase (PKR) is a sensor for viral dsRNA, including HIV-1. We show that PKR inhibition by compound C16 ameliorates the HIV-associated nephropathy (HIVAN) kidney phenotype in the Tg26 transgenic mouse model, with reversal of mitochondrial dysfunction. Combined analysis of single-nucleus RNA-seq and bulk RNA-seq data revealed that oxidative phosphorylation was one of the most downregulated pathways and identified signal transducer and activator of transcription (STAT3) as a potential mediating factor. We identified in Tg26 mice a novel proximal tubular cell cluster enriched in mitochondrial transcripts. Podocytes showed high levels of HIV-1 gene expression and dysregulation of cytoskeleton-related genes, and these cells dedifferentiated. In injured proximal tubules, cell-cell interaction analysis indicated activation of the pro-fibrogenic PKR-STAT3-platelet-derived growth factor (PDGF)-D pathway. These findings suggest that PKR inhibition and mitochondrial rescue are potential novel therapeutic approaches for HIVAN.
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Affiliation(s)
- Teruhiko Yoshida
- Kidney Disease Section, Kidney Diseases Branch, NIDDK, NIHBethesdaUnited States
| | - Khun Zaw Latt
- Kidney Disease Section, Kidney Diseases Branch, NIDDK, NIHBethesdaUnited States
| | - Avi Z Rosenberg
- Department of Pathology, Johns Hopkins Medical InstitutionsBaltimoreUnited States
| | - Briana A Santo
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine & Biomedical Sciences, University at BuffaloBuffaloUnited States
| | - Komuraiah Myakala
- Polycystic Kidney Disease Section, Kidney Diseases Branch, NIDDK, NIHBethesdaUnited States
| | - Yu Ishimoto
- Frederick National Laboratory for Cancer Research, NCI, NIHFrederickUnited States
| | - Yongmei Zhao
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown UniversityWashingtonUnited States
| | - Shashi Shrivastav
- Kidney Disease Section, Kidney Diseases Branch, NIDDK, NIHBethesdaUnited States
| | - Bryce A Jones
- Polycystic Kidney Disease Section, Kidney Diseases Branch, NIDDK, NIHBethesdaUnited States
| | - Xiaoping Yang
- Department of Pathology, Johns Hopkins Medical InstitutionsBaltimoreUnited States
| | - Xiaoxin X Wang
- Polycystic Kidney Disease Section, Kidney Diseases Branch, NIDDK, NIHBethesdaUnited States
| | - Vincent M Tutino
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine & Biomedical Sciences, University at BuffaloBuffaloUnited States
| | - Pinaki Sarder
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine & Biomedical Sciences, University at BuffaloBuffaloUnited States
- College of Medicine, University of FloridaGainesvilleUnited States
| | - Moshe Levi
- Polycystic Kidney Disease Section, Kidney Diseases Branch, NIDDK, NIHBethesdaUnited States
| | - Koji Okamoto
- Kidney Disease Section, Kidney Diseases Branch, NIDDK, NIHBethesdaUnited States
- Nephrology Endocrinology and Vascular Medicine, Tohoku University HospitalSendaiJapan
| | - Cheryl A Winkler
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown UniversityWashingtonUnited States
| | - Jeffrey B Kopp
- Kidney Disease Section, Kidney Diseases Branch, NIDDK, NIHBethesdaUnited States
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9
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Fu X, Zhang F, Dong X, Pu L, Feng Y, Xu Y, Gao F, Liang T, Kang J, Sun H, Hong T, Liu Y, Zhou H, Jiang J, Yin D, Hu X, Wang DZ, Ding J, Chen J. Adapting cytoskeleton-mitochondria patterning with myocyte differentiation by promyogenic PRR33. Cell Death Differ 2024:10.1038/s41418-024-01363-w. [PMID: 39147882 DOI: 10.1038/s41418-024-01363-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/02/2024] [Accepted: 08/09/2024] [Indexed: 08/17/2024] Open
Abstract
Coordinated cytoskeleton-mitochondria organization during myogenesis is crucial for muscle development and function. Our understanding of the underlying regulatory mechanisms remains inadequate. Here, we identified a novel muscle-enriched protein, PRR33, which is upregulated during myogenesis and acts as a promyogenic factor. Depletion of Prr33 in C2C12 represses myoblast differentiation. Genetic deletion of Prr33 in mice reduces myofiber size and decreases muscle strength. The Prr33 mutant mice also exhibit impaired myogenesis and defects in muscle regeneration in response to injury. Interactome and transcriptome analyses reveal that PRR33 regulates cytoskeleton and mitochondrial function. Remarkably, PRR33 interacts with DESMIN, a key regulator of cytoskeleton-mitochondria organization in muscle cells. Abrogation of PRR33 in myocytes substantially abolishes the interaction of DESMIN filaments with mitochondria, leading to abnormal intracellular accumulation of DESMIN and mitochondrial disorganization/dysfunction in myofibers. Together, our findings demonstrate that PRR33 and DESMIN constitute an important regulatory module coordinating mitochondrial organization with muscle differentiation.
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Affiliation(s)
- Xuyang Fu
- Department of Cardiology of Second Affiliated Hospital, State Key Laboratory of Transvascular Implantation Devices, Heart Regeneration and Repair Key Laboratory of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310009, China
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310029, China
| | - Feng Zhang
- Department of Cardiology of Second Affiliated Hospital, State Key Laboratory of Transvascular Implantation Devices, Heart Regeneration and Repair Key Laboratory of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310009, China
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310029, China
| | - Xiaoxuan Dong
- Department of Cardiology of Second Affiliated Hospital, State Key Laboratory of Transvascular Implantation Devices, Heart Regeneration and Repair Key Laboratory of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310009, China
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310029, China
| | - Linbin Pu
- Department of Cardiology of Second Affiliated Hospital, State Key Laboratory of Transvascular Implantation Devices, Heart Regeneration and Repair Key Laboratory of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310009, China
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310029, China
| | - Yan Feng
- School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yang Xu
- School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Feng Gao
- Department of Cardiology of Second Affiliated Hospital, State Key Laboratory of Transvascular Implantation Devices, Heart Regeneration and Repair Key Laboratory of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310009, China
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310029, China
| | - Tian Liang
- Department of Cardiology of Second Affiliated Hospital, State Key Laboratory of Transvascular Implantation Devices, Heart Regeneration and Repair Key Laboratory of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310009, China
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310029, China
| | - Jianmeng Kang
- Department of Cardiology of Second Affiliated Hospital, State Key Laboratory of Transvascular Implantation Devices, Heart Regeneration and Repair Key Laboratory of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310009, China
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310029, China
| | - Hongke Sun
- Department of Cardiology of Second Affiliated Hospital, State Key Laboratory of Transvascular Implantation Devices, Heart Regeneration and Repair Key Laboratory of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310009, China
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310029, China
| | - Tingting Hong
- Department of Cardiology of Second Affiliated Hospital, State Key Laboratory of Transvascular Implantation Devices, Heart Regeneration and Repair Key Laboratory of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Yunxia Liu
- Department of Cardiology of Second Affiliated Hospital, State Key Laboratory of Transvascular Implantation Devices, Heart Regeneration and Repair Key Laboratory of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Hongmei Zhou
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Jun Jiang
- Department of Cardiology of Second Affiliated Hospital, State Key Laboratory of Transvascular Implantation Devices, Heart Regeneration and Repair Key Laboratory of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Deling Yin
- Department of Cardiology of Second Affiliated Hospital, State Key Laboratory of Transvascular Implantation Devices, Heart Regeneration and Repair Key Laboratory of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Xinyang Hu
- Department of Cardiology of Second Affiliated Hospital, State Key Laboratory of Transvascular Implantation Devices, Heart Regeneration and Repair Key Laboratory of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Da-Zhi Wang
- University of South Florida Health Heart Institute, Center for Regenerative Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, 33602, USA
| | - Jian Ding
- School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Jinghai Chen
- Department of Cardiology of Second Affiliated Hospital, State Key Laboratory of Transvascular Implantation Devices, Heart Regeneration and Repair Key Laboratory of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310009, China.
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310029, China.
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10
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Kansu G, Ozturk N, Karagac MS, Yesilkent EN, Ceylan H. The interplay between doxorubicin chemotherapy, antioxidant system, and cardiotoxicity: Unrevealing of the protective potential of tannic acid. Biotechnol Appl Biochem 2024. [PMID: 39099314 DOI: 10.1002/bab.2648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Accepted: 07/23/2024] [Indexed: 08/06/2024]
Abstract
Cardiotoxicity is the leading side effect of anthracycline-based chemotherapy. Therefore, it has gained importance to reveal chemotherapy-supporting strategies and reliable agents with their mechanisms of action. Tannic acid (TA), a naturally occurring plant polyphenol, has diverse physiological effects, including anti-inflammatory, anticarcinogenic, antioxidant, and radical scavenging properties. Therefore, this study was designed to investigate whether TA exerts a protective effect on mechanisms contributing to anthracycline-induced cardiotoxicity in rat heart tissues exposed to doxorubicin (DOX). Rats were randomly divided into control and experimental groups and treated with (18 mg/kg) DOX, TA (50 mg/kg), and DOX + TA during the 2 weeks. Cardiac gene markers and mitochondrial DNA (mtDNA) content were evaluated in the heart tissues of all animals. In addition to major metabolites, mRNA expression changes and biological activity responses of components of antioxidant metabolism were examined in the heart tissues of all animals. The expression of cardiac gene markers increased by DOX exposure was significantly reduced by TA treatment, whereas mtDNA content, which was decreased by DOX exposure, was significantly increased. TA also improved antioxidant metabolism members' gene expression and enzymatic activity, including glutathione peroxidase, glutathione s-transferase, superoxide dismutase, catalase, and thioredoxin reductase. This study provides a detailed overview of the current understanding of DOX-induced cardiotoxicity and preventive or curative measures involving TA.
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Affiliation(s)
- Guldemet Kansu
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum, Türkiye
| | - Neslihan Ozturk
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum, Türkiye
| | - Medine Sibel Karagac
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum, Türkiye
| | - Esra Nur Yesilkent
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum, Türkiye
| | - Hamid Ceylan
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum, Türkiye
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11
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Xu L, Xu Y, Jiang Y, Jiang J, Chen S, Sun D, Li S, Wei F, Zhu H. IP3R2 regulates apoptosis by Ca2+ transfer through mitochondria-ER contacts in hypoxic photoreceptor injury. Exp Eye Res 2024; 245:109965. [PMID: 38851477 DOI: 10.1016/j.exer.2024.109965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 06/10/2024]
Abstract
Mitochondria-associated ER membranes (MAMs) are contact sites that enable bidirectional communication between the ER (endoplasmic reticulum) and mitochondria, including the transfer of Ca2+ signals. MAMs are essential for mitochondrial function and cellular energy metabolism. However, unrestrained Ca2+ transfer to the mitochondria can lead to mitochondria-dependent apoptosis. IP3R2 (Inositol 1,4,5-trisphosphate receptor 2) is an important intracellular Ca2+ channel. This study investigated the contribution of IP3R2-MAMs to hypoxia-induced apoptosis in photoreceptor cells. A photoreceptor hypoxia model was established by subretinal injection of hyaluronic acid (1%) in C57BL/6 mice and 1% O2 treatment in 661W cells. Transmission electron microscopy (TEM), ER-mitochondria colocalization, and the MAM reporter were utilized to evaluate MAM alterations. Cell apoptosis and mitochondrial homeostasis were evaluated using immunofluorescence (IF), flow cytometry, western blotting (WB), and ATP assays. SiRNA transfection was employed to silence IP3R2 in 661W cells. Upon hypoxia induction, MAMs were significantly increased in photoreceptors both in vivo and in vitro. This was accompanied by the activation of mitochondrial apoptosis and disruption of mitochondrial homeostasis. Elevated MAM-enriched IP3R2 protein levels induced by hypoxic injury led to mitochondrial calcium overload and subsequent photoreceptor apoptosis. Notably, IP3R2 knockdown not only improved mitochondrial morphology but also restored mitochondrial function in photoreceptors by limiting MAM formation and thereby attenuating mitochondrial calcium overload under hypoxia. Our results suggest that IP3R2-MAM-mediated mitochondrial calcium overload plays a critical role in mitochondrial dyshomeostasis, ultimately contributing to photoreceptor cell death. Targeting MAM constitutive proteins might provide an option for a therapeutic approach to mitigate photoreceptor death in retinal detachment.
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Affiliation(s)
- Li Xu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yihua Xu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yaoxu Jiang
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Jingjing Jiang
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shimei Chen
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dandan Sun
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shenping Li
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fang Wei
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Disease, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China.
| | - Hong Zhu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Disease, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China.
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12
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Sanches TR, Parra AC, Sun P, Graner MP, Itto LYU, Butter LM, Claessen N, Roelofs JJ, Florquin S, Veras MM, Andrade MDF, Saldiva PHN, Kers J, Andrade L, Tammaro A. Air pollution aggravates renal ischaemia-reperfusion-induced acute kidney injury. J Pathol 2024; 263:496-507. [PMID: 38934262 DOI: 10.1002/path.6302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 04/03/2024] [Accepted: 05/08/2024] [Indexed: 06/28/2024]
Abstract
Chronic kidney disease (CKD) has emerged as a significant global public health concern. Recent epidemiological studies have highlighted the link between exposure to fine particulate matter (PM2.5) and a decline in renal function. PM2.5 exerts harmful effects on various organs through oxidative stress and inflammation. Acute kidney injury (AKI) resulting from ischaemia-reperfusion injury (IRI) involves biological processes similar to those involved in PM2.5 toxicity and is a known risk factor for CKD. The objective of this study was to investigate the impact of PM2.5 exposure on IRI-induced AKI. Through a unique environmentally controlled setup, mice were exposed to urban PM2.5 or filtered air for 12 weeks before IRI followed by euthanasia 48 h after surgery. Animals exposed to PM2.5 and IRI exhibited reduced glomerular filtration, impaired urine concentration ability, and significant tubular damage. Further, PM2.5 aggravated local innate immune responses and mitochondrial dysfunction, as well as enhancing cyclic GMP-AMP synthase-stimulator of interferon genes (cGAS-STING) pathway activation. This increased renal senescence and suppressed the anti-ageing protein klotho, leading to early fibrotic changes. In vitro studies using proximal tubular epithelial cells exposed to PM2.5 and hypoxia/reoxygenation revealed heightened activation of the STING pathway triggered by cytoplasmic mitochondrial DNA, resulting in increased tubular damage and a pro-inflammatory phenotype. In summary, our findings imply a role for PM2.5 in sensitising proximal tubular epithelial cells to IRI-induced damage, suggesting a plausible association between PM2.5 exposure and heightened susceptibility to CKD in individuals experiencing AKI. Strategies aimed at reducing PM2.5 concentrations and implementing preventive measures may improve outcomes for AKI patients and mitigate the progression from AKI to CKD. © 2024 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Talita Rojas Sanches
- Laboratory of Basic Science in Renal Diseases (LIM-12), Division of Nephrology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Antonio Carlos Parra
- Laboratory of Basic Science in Renal Diseases (LIM-12), Division of Nephrology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Peiqi Sun
- Department of Pathology, Amsterdam Cardiovascular Science and Amsterdam Infection and Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Mariana Pereira Graner
- Laboratory of Basic Science in Renal Diseases (LIM-12), Division of Nephrology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Lucas Yuji Umesaki Itto
- Laboratory of Basic Science in Renal Diseases (LIM-12), Division of Nephrology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Loes Maria Butter
- Department of Pathology, Amsterdam Cardiovascular Science and Amsterdam Infection and Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Nike Claessen
- Department of Pathology, Amsterdam Cardiovascular Science and Amsterdam Infection and Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Joris Jth Roelofs
- Department of Pathology, Amsterdam Cardiovascular Science and Amsterdam Infection and Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Pathology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Sandrine Florquin
- Department of Pathology, Amsterdam Cardiovascular Science and Amsterdam Infection and Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Pathology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Mariana Matera Veras
- Laboratory of Environmental and Experimental Pathology (LIM-5), Department of Pathology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Maria de Fatima Andrade
- Institute of Astronomy, Geophysics and Atmospheric Sciences (IAG), University of São Paulo, São Paulo, Brazil
| | - Paulo Hilário Nascimento Saldiva
- Department of Pathology, Amsterdam Cardiovascular Science and Amsterdam Infection and Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Pathology, Leiden University Medical Centre, Leiden, The Netherlands
- Biomolecular Systems Analytics, Van't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Amsterdam, The Netherlands
| | - Jesper Kers
- Department of Pathology, Amsterdam Cardiovascular Science and Amsterdam Infection and Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Pathology, Leiden University Medical Centre, Leiden, The Netherlands
- Biomolecular Systems Analytics, Van't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Amsterdam, The Netherlands
| | - Lucia Andrade
- Laboratory of Basic Science in Renal Diseases (LIM-12), Division of Nephrology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Alessandra Tammaro
- Department of Pathology, Amsterdam Cardiovascular Science and Amsterdam Infection and Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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13
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Moir RD, Merheb E, Chitu V, Richard Stanley E, Willis IM. Molecular basis of neurodegeneration in a mouse model of Polr3-related disease. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.12.12.571310. [PMID: 38168294 PMCID: PMC10760057 DOI: 10.1101/2023.12.12.571310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Pathogenic variants in subunits of RNA polymerase (Pol) III cause a spectrum of Polr3-related neurodegenerative diseases including 4H leukodystrophy. Disease onset occurs from infancy to early adulthood and is associated with a variable range and severity of neurological and non-neurological features. The molecular basis of Polr3-related disease pathogenesis is unknown. We developed a postnatal whole-body mouse model expressing pathogenic Polr3a mutations to examine the molecular mechanisms by which reduced Pol III transcription results primarily in central nervous system phenotypes. Polr3a mutant mice exhibit behavioral deficits, cerebral pathology and exocrine pancreatic atrophy. Transcriptome and immunohistochemistry analyses of cerebra during disease progression show a reduction in most Pol III transcripts, induction of innate immune and integrated stress responses and cell type-specific gene expression changes reflecting neuron and oligodendrocyte loss and microglial activation. Earlier in the disease when integrated stress and innate immune responses are minimally induced, mature tRNA sequencing revealed a global reduction in tRNA levels and an altered tRNA profile but no changes in other Pol III transcripts. Thus, changes in the size and/or composition of the tRNA pool have a causal role in disease initiation. Our findings reveal different tissue- and brain region-specific sensitivities to a defect in Pol III transcription.
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Affiliation(s)
- Robyn D. Moir
- Department of Biochemistry, Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx NY 10461, USA
| | - Emilio Merheb
- Department of Biochemistry, Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx NY 10461, USA
| | - Violeta Chitu
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx NY 10461, USA
| | - E. Richard Stanley
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx NY 10461, USA
| | - Ian M. Willis
- Department of Biochemistry, Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx NY 10461, USA
- Department of Systems and Computational Biology, Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx NY 10461, USA
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14
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Homma ST, Wang X, Frere JJ, Gower AC, Zhou J, Lim JK, tenOever BR, Zhou L. Respiratory SARS-CoV-2 Infection Causes Skeletal Muscle Atrophy and Long-Lasting Energy Metabolism Suppression. Biomedicines 2024; 12:1443. [PMID: 39062017 PMCID: PMC11275164 DOI: 10.3390/biomedicines12071443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 06/19/2024] [Accepted: 06/22/2024] [Indexed: 07/28/2024] Open
Abstract
Muscle fatigue represents the most prevalent symptom of long-term COVID, with elusive pathogenic mechanisms. We performed a longitudinal study to characterize histopathological and transcriptional changes in skeletal muscle in a hamster model of respiratory SARS-CoV-2 infection and compared them with influenza A virus (IAV) and mock infections. Histopathological and bulk RNA sequencing analyses of leg muscles derived from infected animals at days 3, 30, and 60 post-infection showed no direct viral invasion but myofiber atrophy in the SARS-CoV-2 group, which was accompanied by persistent downregulation of the genes related to myofibers, ribosomal proteins, fatty acid β-oxidation, tricarboxylic acid cycle, and mitochondrial oxidative phosphorylation complexes. While both SARS-CoV-2 and IAV infections induced acute and transient type I and II interferon responses in muscle, only the SARS-CoV-2 infection upregulated TNF-α/NF-κB but not IL-6 signaling in muscle. Treatment of C2C12 myotubes, a skeletal muscle cell line, with combined IFN-γ and TNF-α but not with IFN-γ or TNF-α alone markedly impaired mitochondrial function. We conclude that a respiratory SARS-CoV-2 infection can cause myofiber atrophy and persistent energy metabolism suppression without direct viral invasion. The effects may be induced by the combined systemic interferon and TNF-α responses at the acute phase and may contribute to post-COVID-19 persistent muscle fatigue.
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Affiliation(s)
- Sachiko T. Homma
- Department of Neurology, Boston University Chobanian & Avedisian School of Medicine, Boston, MA 02118, USA
| | - Xingyu Wang
- Department of Neurology, Hospital for Special Surgery, New York, NY 10021, USA
| | - Justin J. Frere
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Adam C. Gower
- Clinical and Translational Science Institute, Boston University Chobanian & Avedisian School of Medicine, Boston, MA 02118, USA
| | - Jingsong Zhou
- College of Nursing and Health Innovation, University of Texas at Arlington, Arlington, TX 76010, USA
| | - Jean K. Lim
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Benjamin R. tenOever
- Department of Microbiology, Grossman School of Medicine, New York University, New York, NY 10016, USA
| | - Lan Zhou
- Department of Neurology, Hospital for Special Surgery, New York, NY 10021, USA
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15
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Song X, Hong X, Wang Z, Lu F, Song C, Wang X, Zhan X, Yu J, Zhai J, Li J, Xiang X, Xuan X. Association between mitochondrial DNA genotype and sperm motility in humans. Mitochondrial DNA A DNA Mapp Seq Anal 2024:1-8. [PMID: 38913411 DOI: 10.1080/24701394.2024.2361609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 05/24/2024] [Indexed: 06/25/2024]
Abstract
The relationship between genetic alterations in mitochondrial DNA (mtDNA) and progressive motility (PR) and rapid progressive motility (grade A) of ejaculated human spermatozoa remains unclear. In this study, we explored the association between human mtDNA genotype and sperm PR and grade A by analyzing mtDNA copy number, loci, haplogroup, rearrangement, deletions, and duplications and sperm motility parameters. Human sperm mtDNA copy number, loci and haplogroups were not associated with human sperm motility PR or A grade. However, the cumulative frequency of human sperm mtDNA rearrangements (including deletions and duplications) in participants with high PR and grade A ratio was higher than in participants with low PR and grade A ratio. Additional studies are needed to understand the relationship between mtDNA genotypes, including deletions and duplications, and human sperm motility.
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Affiliation(s)
- Xueyou Song
- Department of Andrology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Xiaoning Hong
- Clinical Big Data Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Zilong Wang
- Department of Andrology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Fuding Lu
- Department of Andrology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Changze Song
- Department of Andrology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Xinkun Wang
- Department of Andrology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Xiaoyong Zhan
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Jiaying Yu
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Jiawen Zhai
- Department of Andrology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Jiang Li
- Clinical Big Data Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
- Shenzhen Key Laboratory of Chinese Medicine Active Substance Screening and Translational Research, Shenzhen, China
| | - Xi Xiang
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Xujun Xuan
- Department of Andrology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Cheeloo College of Medicine, Shandong University, Jinan, China
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16
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Silvaroli JA, Bisunke B, Kim JY, Stayton A, Jayne LA, Martinez SA, Nguyen C, Patel PS, Vanichapol T, Verma V, Akhter J, Bolisetty S, Madhavan SM, Kuscu C, Coss CC, Zepeda-Orozco D, Parikh SV, Satoskar AA, Davidson AJ, Eason JD, Szeto HH, Pabla NS, Bajwa A. Genome-Wide CRISPR Screen Identifies Phospholipid Scramblase 3 as the Biological Target of Mitoprotective Drug SS-31. J Am Soc Nephrol 2024; 35:681-695. [PMID: 38530359 PMCID: PMC11164119 DOI: 10.1681/asn.0000000000000338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 03/12/2024] [Indexed: 03/27/2024] Open
Abstract
Key Points Szeto–Schiller-31–mediated mitoprotection is phospholipid scramblase 3–dependent. Phospholipid scramblase 3 is required for recovery after AKI. Background The synthetic tetrapeptide Szeto–Schiller (SS)-31 shows promise in alleviating mitochondrial dysfunction associated with common diseases. However, the precise pharmacological basis of its mitoprotective effects remains unknown. Methods To uncover the biological targets of SS-31, we performed a genome-scale clustered regularly interspaced short palindromic repeats screen in human kidney-2, a cell culture model where SS-31 mitigates cisplatin-associated cell death and mitochondrial dysfunction. The identified hit candidate gene was functionally validated using knockout cell lines, small interfering RNA-mediated downregulation, and tubular epithelial–specific conditional knockout mice. Biochemical interaction studies were also performed to examine the interaction of SS-31 with the identified target protein. Results Our primary screen and validation studies in hexokinase 2 and primary murine tubular epithelial cells showed that phospholipid scramblase 3 (PLSCR3), an understudied inner mitochondrial membrane protein, was essential for the protective effects of SS-31. For in vivo validation, we generated tubular epithelial–specific knockout mice and found that Plscr3 gene ablation did not influence kidney function under normal conditions or affect the severity of cisplatin and rhabdomyolysis-associated AKI. However, Plscr3 gene deletion completely abrogated the protective effects of SS-31 during cisplatin and rhabdomyolysis-associated AKI. Biochemical studies showed that SS-31 directly binds to a previously uncharacterized N -terminal domain and stimulates PLSCR3 scramblase activity. Finally, PLSCR3 protein expression was found to be increased in the kidneys of patients with AKI. Conclusions PLSCR3 was identified as the essential biological target that facilitated the mitoprotective effects of SS-31 in vitro and in vivo .
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Affiliation(s)
- Josie A. Silvaroli
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
| | - Bijay Bisunke
- Department of Genetics, Genomics, and Informatics; College of Medicine, The University of Tennessee Health Science Center, Memphis, Tennessee
| | - Ji Young Kim
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
| | - Amanda Stayton
- Department of Genetics, Genomics, and Informatics; College of Medicine, The University of Tennessee Health Science Center, Memphis, Tennessee
| | - Laura A. Jayne
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
| | - Shirely A. Martinez
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
| | - Christopher Nguyen
- Department of Genetics, Genomics, and Informatics; College of Medicine, The University of Tennessee Health Science Center, Memphis, Tennessee
| | - Prisha S. Patel
- Department of Genetics, Genomics, and Informatics; College of Medicine, The University of Tennessee Health Science Center, Memphis, Tennessee
| | - Thitinee Vanichapol
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
| | - Vivek Verma
- Department of Medicine, University of Alabama, Birmingham, Alabama
| | - Juheb Akhter
- Department of Medicine, University of Alabama, Birmingham, Alabama
| | | | - Sethu M. Madhavan
- Division of Nephrology, Department of Medicine, The Ohio State University, Columbus, Ohio
| | - Cem Kuscu
- Department of Surgery, College of Medicine, Transplant Research Institute, The University of Tennessee Health Science Center, Memphis, Tennessee
| | - Christopher C. Coss
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
| | - Diana Zepeda-Orozco
- Department of Pediatrics, The Ohio State University College of Medicine and Kidney and Urinary Tract Research Center, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Samir V. Parikh
- Division of Nephrology, Department of Medicine, The Ohio State University, Columbus, Ohio
| | - Anjali A. Satoskar
- Division of Renal and Transplant Pathology, Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Alan J. Davidson
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
| | - James D. Eason
- Department of Surgery, College of Medicine, Transplant Research Institute, The University of Tennessee Health Science Center, Memphis, Tennessee
| | - Hazel H. Szeto
- Social Profit Network Research Lab, Menlo Park, California
| | - Navjot S. Pabla
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
| | - Amandeep Bajwa
- Department of Genetics, Genomics, and Informatics; College of Medicine, The University of Tennessee Health Science Center, Memphis, Tennessee
- Department of Surgery, College of Medicine, Transplant Research Institute, The University of Tennessee Health Science Center, Memphis, Tennessee
- Department of Microbiology, Immunology, and Biochemistry; College of Medicine, The University of Tennessee Health Science Center, Memphis, Tennessee
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17
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Correa-Medero LO, Jankowski SE, Hong HS, Armas ND, Vijendra AI, Reynolds MB, Fogo GM, Awad D, Dils AT, Inoki KA, Williams RG, Ye AM, Svezhova N, Gomez-Rivera F, Collins KL, O'Riordan MX, Sanderson TH, Lyssiotis CA, Carty SA. ER-associated degradation adapter Sel1L is required for CD8 + T cell function and memory formation following acute viral infection. Cell Rep 2024; 43:114156. [PMID: 38687642 PMCID: PMC11194752 DOI: 10.1016/j.celrep.2024.114156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 03/06/2024] [Accepted: 04/10/2024] [Indexed: 05/02/2024] Open
Abstract
The maintenance of antigen-specific CD8+ T cells underlies the efficacy of vaccines and immunotherapies. Pathways contributing to CD8+ T cell loss are not completely understood. Uncovering the pathways underlying the limited persistence of CD8+ T cells would be of significant benefit for developing novel strategies of promoting T cell persistence. Here, we demonstrate that murine CD8+ T cells experience endoplasmic reticulum (ER) stress following activation and that the ER-associated degradation (ERAD) adapter Sel1L is induced in activated CD8+ T cells. Sel1L loss limits CD8+ T cell function and memory formation following acute viral infection. Mechanistically, Sel1L is required for optimal bioenergetics and c-Myc expression. Finally, we demonstrate that human CD8+ T cells experience ER stress upon activation and that ER stress is negatively associated with improved T cell functionality in T cell-redirecting therapies. Together, these results demonstrate that ER stress and ERAD are important regulators of T cell function and persistence.
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Affiliation(s)
- Luis O Correa-Medero
- Graduate Program in Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Hanna S Hong
- Graduate Program in Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Nicholas D Armas
- Graduate Program in Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Mack B Reynolds
- Graduate Program in Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Garrett M Fogo
- Neuroscience Graduate Program, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Dominik Awad
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Alexander T Dils
- Division of Hematology and Oncology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Reid G Williams
- Graduate Program in Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Nadezhda Svezhova
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA; Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Kathleen L Collins
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA; Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI 48109, USA; Cellular and Molecular Biology Graduate Program, University of Michigan, Ann Arbor, MI 48109, USA
| | - Mary X O'Riordan
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Thomas H Sanderson
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI 48109, USA; Department of Emergency Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Costas A Lyssiotis
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI 48109, USA; Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
| | - Shannon A Carty
- Division of Hematology and Oncology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA; Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA.
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18
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Legroux TM, Schymik HS, Gasparoni G, Mohammadi S, Walter J, Libert C, Diesel B, Hoppstädter J, Kiemer AK. Immunomodulation by glucocorticoid-induced leucine zipper in macrophages: enhanced phagocytosis, protection from pyroptosis, and altered mitochondrial function. Front Immunol 2024; 15:1396827. [PMID: 38855102 PMCID: PMC11157436 DOI: 10.3389/fimmu.2024.1396827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 05/07/2024] [Indexed: 06/11/2024] Open
Abstract
Glucocorticoids, which have long served as fundamental therapeutics for diverse inflammatory conditions, are still widely used, despite associated side effects limiting their long-term use. Among their key mediators is glucocorticoid-induced leucine zipper (GILZ), recognized for its anti-inflammatory and immunosuppressive properties. Here, we explore the immunomodulatory effects of GILZ in macrophages through transcriptomic analysis and functional assays. Bulk RNA sequencing of GILZ knockout and GILZ-overexpressing macrophages revealed significant alterations in gene expression profiles, particularly impacting pathways associated with the inflammatory response, phagocytosis, cell death, mitochondrial function, and extracellular structure organization activity. GILZ-overexpression enhances phagocytic and antibacterial activity against Salmonella typhimurium and Escherichia coli, potentially mediated by increased nitric oxide production. In addition, GILZ protects macrophages from pyroptotic cell death, as indicated by a reduced production of reactive oxygen species (ROS) in GILZ transgenic macrophages. In contrast, GILZ KO macrophages produced more ROS, suggesting a regulatory role of GILZ in ROS-dependent pathways. Additionally, GILZ overexpression leads to decreased mitochondrial respiration and heightened matrix metalloproteinase activity, suggesting its involvement in tissue remodeling processes. These findings underscore the multifaceted role of GILZ in modulating macrophage functions and its potential as a therapeutic target for inflammatory disorders, offering insights into the development of novel therapeutic strategies aimed at optimizing the benefits of glucocorticoid therapy while minimizing adverse effects.
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Affiliation(s)
- Thierry M. Legroux
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, Saarbrücken, Germany
| | - Hanna S. Schymik
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, Saarbrücken, Germany
| | - Gilles Gasparoni
- Department of Genetics, Saarland University, Saarbrücken, Germany
| | - Saeed Mohammadi
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
| | - Jörn Walter
- Department of Genetics, Saarland University, Saarbrücken, Germany
| | - Claude Libert
- Flanders Institute for Biotechnology (VIB) Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Britta Diesel
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, Saarbrücken, Germany
| | - Jessica Hoppstädter
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, Saarbrücken, Germany
| | - Alexandra K. Kiemer
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, Saarbrücken, Germany
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19
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Prabakaran AD, McFarland K, Miz K, Durumutla HB, Piczer K, El Abdellaoui Soussi F, Latimer H, Werbrich C, Chung HJ, Blair NS, Millay DP, Morris AJ, Prideaux B, Finck BN, Quattrocelli M. Intermittent glucocorticoid treatment improves muscle metabolism via the PGC1α/Lipin1 axis in an aging-related sarcopenia model. J Clin Invest 2024; 134:e177427. [PMID: 38702076 PMCID: PMC11142738 DOI: 10.1172/jci177427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 04/09/2024] [Indexed: 05/06/2024] Open
Abstract
Sarcopenia burdens the older population through loss of muscle energy and mass, yet treatments to functionally rescue both parameters are lacking. The glucocorticoid prednisone remodels muscle metabolism on the basis of frequency of intake, but its mechanisms in sarcopenia are unknown. We found that once-weekly intermittent prednisone administration rescued muscle quality in aged 24-month-old mice to a level comparable to that seen in young 4-month-old mice. We discovered an age- and sex-independent glucocorticoid receptor transactivation program in muscle encompassing peroxisome proliferator-activated receptor γ coactivator 1 α (PGC1α) and its cofactor Lipin1. Treatment coordinately improved mitochondrial abundance through isoform 1 and muscle mass through isoform 4 of the myocyte-specific PGC1α, which was required for the treatment-driven increase in carbon shuttling from glucose oxidation to amino acid biogenesis. We also probed myocyte-specific Lipin1 as a nonredundant factor coaxing PGC1α upregulation to the stimulation of both oxidative and anabolic effects. Our study unveils an aging-resistant druggable program in myocytes for the coordinated rescue of energy and mass in sarcopenia.
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Affiliation(s)
- Ashok D. Prabakaran
- Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Kevin McFarland
- Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Karen Miz
- Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Hima Bindu Durumutla
- Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Kevin Piczer
- Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Fadoua El Abdellaoui Soussi
- Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Hannah Latimer
- Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Cole Werbrich
- Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Hyun-Jy Chung
- Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - N. Scott Blair
- Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Douglas P. Millay
- Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Andrew J. Morris
- Department Pharmacology and Toxicology, University of Arkansas for Medical Sciences (UAMS) College of Medicine and Central Arkansas VA Healthcare System, Little Rock, Arkansas, USA
| | - Brendan Prideaux
- Department Neuroscience, Cell Biology, and Anatomy, University of Texas Medical Branch (UTMB), Galveston, Texas, USA
| | - Brian N. Finck
- Department of Medicine, Center for Human Nutrition, Washington University in St. Louis, Missouri, USA
| | - Mattia Quattrocelli
- Molecular Cardiovascular Biology, Heart Institute, Cincinnati Children’s Hospital Medical Center (CCHMC) and Department Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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20
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Tamura Y, Kouzaki K, Kotani T, Nakazato K. Coculture with Colon-26 cancer cells decreases the protein synthesis rate and shifts energy metabolism toward glycolysis dominance in C2C12 myotubes. Am J Physiol Cell Physiol 2024; 326:C1520-C1542. [PMID: 38557354 DOI: 10.1152/ajpcell.00179.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 03/21/2024] [Accepted: 03/27/2024] [Indexed: 04/04/2024]
Abstract
Cancer cachexia is the result of complex interorgan interactions initiated by cancer cells and changes in patient behavior such as decreased physical activity and energy intake. Therefore, it is crucial to distinguish between the direct and indirect effects of cancer cells on muscle mass regulation and bioenergetics to identify novel therapeutic targets. In this study, we investigated the direct effects of Colon-26 cancer cells on the molecular regulating machinery of muscle mass and its bioenergetics using a coculture system with C2C12 myotubes. Our results demonstrated that coculture with Colon-26 cells induced myotube atrophy and reduced skeletal muscle protein synthesis and its regulating mechanistic target of rapamycin complex 1 signal transduction. However, we did not observe any activating effects on protein degradation pathways including ubiquitin-proteasome and autophagy-lysosome systems. From a bioenergetic perspective, coculture with Colon-26 cells decreased the complex I-driven, but not complex II-driven, mitochondrial ATP production capacity, while increasing glycolytic enzyme activity and glycolytic metabolites, suggesting a shift in energy metabolism toward glycolysis dominance. Gene expression profiling by RNA sequencing showed that the increased activity of glycolytic enzymes was consistent with changes in gene expression. However, the decreased ATP production capacity of mitochondria was not in line with the gene expression. The potential direct interaction between cancer cells and skeletal muscle cells revealed in this study may contribute to a better fundamental understanding of the complex pathophysiology of cancer cachexia.NEW & NOTEWORTHY We explored the potential direct interplay between colon cancer cells (Colon-26) and skeletal muscle cells (C2C12 myotubes) employing a noncontact coculture experimental model. Our findings reveal that coculturing with Colon-26 cells substantially impairs the protein synthesis rate, concurrently instigating a metabolic shift toward glycolytic dominance in C2C12 myotubes. This research unveils critical insights into the intricate cellular cross talk underpinning the complex pathophysiology of cancer cachexia.
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Affiliation(s)
- Yuki Tamura
- Faculty of Sport Science, Nippon Sport Science University, Tokyo, Japan
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
- Research Institute for Sport Science, Nippon Sport Science University, Tokyo, Japan
- High Performance Center, Nippon Sport Science University, Tokyo, Japan
- Sport Training Center, Nippon Sport Science University, Tokyo, Japan
- Center for Coaching Excellence, Nippon Sport Science University, Tokyo, Japan
| | - Karina Kouzaki
- Faculty of Medical Science, Nippon Sport Science University, Tokyo, Japan
- Graduate School of Medical and Health Science, Nippon Sport Science University, Tokyo, Japan
- Research Institute for Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Takaya Kotani
- Research Institute for Sport Science, Nippon Sport Science University, Tokyo, Japan
- Department of Sports Sciences, The University of Tokyo, Tokyo, Japan
| | - Koichi Nakazato
- Faculty of Medical Science, Nippon Sport Science University, Tokyo, Japan
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
- Graduate School of Medical and Health Science, Nippon Sport Science University, Tokyo, Japan
- Research Institute for Sport Science, Nippon Sport Science University, Tokyo, Japan
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21
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González-Alfonso WL, Petrosyan P, Del Razo LM, Sánchez-Peña LC, Tapia-Rodríguez M, Hernández-Muñoz R, Gonsebatt ME. Chronic Exposure to Arsenic and Fluoride Starting at Gestation Alters Liver Mitochondrial Protein Expression and Induces Early Onset of Liver Fibrosis in Male Mouse Offspring. Biol Trace Elem Res 2024:10.1007/s12011-024-04198-1. [PMID: 38676876 DOI: 10.1007/s12011-024-04198-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 04/21/2024] [Indexed: 04/29/2024]
Abstract
The presence of arsenic (As) and fluoride (F-) in drinking water is of concern due to the enormous number of individuals exposed to this condition worldwide. Studies in cultured cells and animal models have shown that As- or F-induced hepatotoxicity is primarily associated with redox disturbance and altered mitochondrial homeostasis. To explore the hepatotoxic effects of chronic combined exposure to As and F- in drinking water, pregnant CD-1 mice were exposed to 2 mg/L As (sodium arsenite) and/or 25 mg/L F- (sodium fluoride). The male offspring continued the exposure treatment up to 30 (P30) or 90 (P90) postnatal days. GSH levels, cysteine synthesis enzyme activities, and cysteine transporter levels were investigated in liver homogenates, as well as the expression of biomarkers of ferroptosis and mitochondrial biogenesis-related proteins. Serum transaminase levels and Hematoxylin-Eosin and Masson trichrome-stained liver tissue slices were examined. Combined exposure at P30 significantly reduced GSH levels and the mitochondrial transcription factor A (TFAM) expression while increasing lipid peroxidation, free Fe 2+, p53 expression, and serum ALT activity. At P90, the upregulation of cysteine uptake and synthesis was associated with a recovery of GSH levels. Nevertheless, the downregulation of TFAM continued and was now associated with a downstream inhibition of the expression of MT-CO2 and reduced levels of mtDNA and fibrotic liver damage. Our experimental approach using human-relevant doses gives evidence of the increased risk for early liver damage associated with elevated levels of As and F- in the diet during intrauterine and postnatal period.
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Affiliation(s)
- Wendy L González-Alfonso
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, 04510, México
| | - Pavel Petrosyan
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, 04510, México
| | - Luz M Del Razo
- Departamento de Toxicología, Centro de Investigación y Estudios Avanzados, 07360, Mexico City, Mexico
| | - Luz C Sánchez-Peña
- Departamento de Toxicología, Centro de Investigación y Estudios Avanzados, 07360, Mexico City, Mexico
| | - Miguel Tapia-Rodríguez
- Unidad de Microscopia, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, 04510, Mexico City, Mexico
| | - Rolando Hernández-Muñoz
- Departamento de Biología Celular y del Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, 04510, México
| | - María E Gonsebatt
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, 04510, México.
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22
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Moustakli E, Zikopoulos A, Skentou C, Dafopoulos S, Stavros S, Dafopoulos K, Drakakis P, Georgiou I, Zachariou A. Association of Obesity with Telomere Length in Human Sperm. J Clin Med 2024; 13:2150. [PMID: 38610915 PMCID: PMC11012429 DOI: 10.3390/jcm13072150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/01/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024] Open
Abstract
Background: Telomere attrition and mitochondrial dysfunction are two fundamental aspects of aging. Calorie restriction (CR) is the best strategy to postpone aging since it can enhance telomere attrition, boost antioxidant capacity, and lower the generation of reactive oxygen species (ROS). Since ROS is produced by mitochondria and can readily travel to cell nuclei, it is thought to be a crucial molecule for information transfer between mitochondria and cell nuclei. Important variables that affect the quality and functionality of sperm and may affect male reproductive health and fertility include telomere length, mitochondrial content, and the ratio of mitochondrial DNA (mtDNA) to nuclear DNA (nDNA). Telomere damage results from mitochondrial failure, whereas nuclear DNA remains unaffected. This research aims to investigate potential associations between these three variables and how they might relate to body mass index. Methods: Data were collected from 82 men who underwent IVF/ICSI at the University Hospital of Ioannina's IVF Unit in the Obstetrics and Gynecology Department. Evaluations included sperm morphology, sperm count, sperm motility, and participant history. To address this, male participants who were categorized into three body mass index (ΒΜΙ) groups-normal, overweight, and obese-had their sperm samples tested. Results: For both the normal and overweight groups, our results show a negative connection between relative telomere length and ΒΜI. As an illustration of a potential connection between mitochondrial health and telomere maintenance, a positive correlation was found for the obese group. Only the obese group's results were statistically significant (p < 0.05). More evidence that longer telomeres are associated with lower mitochondrial content can be found in the negative connection between telomere length and mitochondrial content in both the normal and overweight groups. However, the obese group showed a positive association. The data did not reach statistical significance for any of the three groups. These associations may affect sperm quality since telomere length and mitochondrial concentration are indicators of cellular integrity and health. Moreover, the ratio of mtDNA to nDNA was positively correlated with the relative telomere lengths of the obese group, but negatively correlated with the normal and overweight groups. In every group that was studied, the results were not statistically significant. According to this, male fertility may be negatively impacted by an imbalance in the copy number of the mitochondrial genome compared to the nuclear DNA in sperm. Conclusions: Essentially, the goal of our work is to determine whether mitochondria and telomere length in human sperm interact. Understanding these connections may aid in the explanation of some male infertility causes and possibly contribute to the creation of new treatment modalities for problems pertaining to reproductive health. The functional implications of these connections and their applications in therapeutic settings require further investigation.
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Affiliation(s)
- Efthalia Moustakli
- Laboratory of Medical Genetics, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece;
| | - Athanasios Zikopoulos
- Obstetrics and Gynecology, Royal Devon and Exeter Hospital, Barrack Rd., Exeter EX 25 DW, UK;
| | - Charikleia Skentou
- Department of Obstetrics and Gynecology, Medical School of Ioannina, University General Hospital, 45110 Ioannina, Greece;
| | - Stefanos Dafopoulos
- Department of Health Sciences, European University Cyprus, Nicosia 2404, Cyprus;
| | - Sofoklis Stavros
- Third Department of Obstetrics and Gynecology, Attikon Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece; (S.S.); (P.D.)
| | - Konstantinos Dafopoulos
- IVF Unit, Department of Obstetrics and Gynecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, 41500 Larissa, Greece;
| | - Peter Drakakis
- Third Department of Obstetrics and Gynecology, Attikon Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece; (S.S.); (P.D.)
| | - Ioannis Georgiou
- Laboratory of Medical Genetics, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece;
| | - Athanasios Zachariou
- Department of Urology, School of Medicine, Ioannina University, 45110 Ioannina, Greece;
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23
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Zhang X, Ge L, Jin G, Liu Y, Yu Q, Chen W, Chen L, Dong T, Miyagishima KJ, Shen J, Yang J, Lv G, Xu Y, Yang Q, Ye L, Yi S, Li H, Zhang Q, Chen G, Liu W, Yang Y, Li W, Ou J. Cold-induced FOXO1 nuclear transport aids cold survival and tissue storage. Nat Commun 2024; 15:2859. [PMID: 38570500 PMCID: PMC10991392 DOI: 10.1038/s41467-024-47095-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 03/19/2024] [Indexed: 04/05/2024] Open
Abstract
Cold-induced injuries severely limit opportunities and outcomes of hypothermic therapies and organ preservation, calling for better understanding of cold adaptation. Here, by surveying cold-altered chromatin accessibility and integrated CUT&Tag/RNA-seq analyses in human stem cells, we reveal forkhead box O1 (FOXO1) as a key transcription factor for autonomous cold adaptation. Accordingly, we find a nonconventional, temperature-sensitive FOXO1 transport mechanism involving the nuclear pore complex protein RANBP2, SUMO-modification of transporter proteins Importin-7 and Exportin-1, and a SUMO-interacting motif on FOXO1. Our conclusions are supported by cold survival experiments with human cell models and zebrafish larvae. Promoting FOXO1 nuclear entry by the Exportin-1 inhibitor KPT-330 enhances cold tolerance in pre-diabetic obese mice, and greatly prolongs the shelf-life of human and mouse pancreatic tissues and islets. Transplantation of mouse islets cold-stored for 14 days reestablishes normoglycemia in diabetic mice. Our findings uncover a regulatory network and potential therapeutic targets to boost spontaneous cold adaptation.
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Affiliation(s)
- Xiaomei Zhang
- Department of Hepatic Surgery and Liver transplantation Center of the Third Affiliated Hospital, Organ Transplantation Institute, Sun Yat-sen University, Guangzhou, China
- Guangdong Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Department of Cancer Biology, Dana-Farber Cancer Institute; Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Lihao Ge
- Institute of Psychiatry and Neuroscience, Xinxiang Medical University, Xinxiang, China
| | - Guanghui Jin
- Department of Hepatic Surgery and Liver transplantation Center of the Third Affiliated Hospital, Organ Transplantation Institute, Sun Yat-sen University, Guangzhou, China
- Guangdong Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yasong Liu
- Department of Hepatic Surgery and Liver transplantation Center of the Third Affiliated Hospital, Organ Transplantation Institute, Sun Yat-sen University, Guangzhou, China
| | - Qingfen Yu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Weizhao Chen
- Department of Hepatic Surgery and Liver transplantation Center of the Third Affiliated Hospital, Organ Transplantation Institute, Sun Yat-sen University, Guangzhou, China
- Guangdong Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Liang Chen
- Department of Hepatic Surgery and Liver transplantation Center of the Third Affiliated Hospital, Organ Transplantation Institute, Sun Yat-sen University, Guangzhou, China
- Guangdong Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Tao Dong
- Department of Hepatic Surgery and Liver transplantation Center of the Third Affiliated Hospital, Organ Transplantation Institute, Sun Yat-sen University, Guangzhou, China
- Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Kiyoharu J Miyagishima
- Retinal Neurophysiology Section, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Juan Shen
- Guangdong Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Guangdong province engineering laboratory for transplantation medicine, Guangzhou, China
| | - Jinghong Yang
- Department of Hepatic Surgery and Liver transplantation Center of the Third Affiliated Hospital, Organ Transplantation Institute, Sun Yat-sen University, Guangzhou, China
- Guangdong Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Guo Lv
- Guangdong province engineering laboratory for transplantation medicine, Guangzhou, China
| | - Yan Xu
- Cell-gene Therapy Translational Medicine Research Center, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Qing Yang
- Department of Hepatic Surgery and Liver transplantation Center of the Third Affiliated Hospital, Organ Transplantation Institute, Sun Yat-sen University, Guangzhou, China
| | - Linsen Ye
- Department of Hepatic Surgery and Liver transplantation Center of the Third Affiliated Hospital, Organ Transplantation Institute, Sun Yat-sen University, Guangzhou, China
- Guangdong Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shuhong Yi
- Department of Hepatic Surgery and Liver transplantation Center of the Third Affiliated Hospital, Organ Transplantation Institute, Sun Yat-sen University, Guangzhou, China
| | - Hua Li
- Department of Hepatic Surgery and Liver transplantation Center of the Third Affiliated Hospital, Organ Transplantation Institute, Sun Yat-sen University, Guangzhou, China
| | - Qi Zhang
- Guangdong Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Guangdong province engineering laboratory for transplantation medicine, Guangzhou, China
- Cell-gene Therapy Translational Medicine Research Center, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Guihua Chen
- Department of Hepatic Surgery and Liver transplantation Center of the Third Affiliated Hospital, Organ Transplantation Institute, Sun Yat-sen University, Guangzhou, China
- Guangdong Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Guangdong province engineering laboratory for transplantation medicine, Guangzhou, China
| | - Wei Liu
- Guangdong Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
- Guangdong province engineering laboratory for transplantation medicine, Guangzhou, China.
| | - Yang Yang
- Department of Hepatic Surgery and Liver transplantation Center of the Third Affiliated Hospital, Organ Transplantation Institute, Sun Yat-sen University, Guangzhou, China.
- Guangdong Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
- Guangdong province engineering laboratory for transplantation medicine, Guangzhou, China.
| | - Wei Li
- Retinal Neurophysiology Section, National Eye Institute, National Institutes of Health, Bethesda, MD, USA.
| | - Jingxing Ou
- Department of Hepatic Surgery and Liver transplantation Center of the Third Affiliated Hospital, Organ Transplantation Institute, Sun Yat-sen University, Guangzhou, China.
- Guangdong Key Laboratory of Liver Disease Research, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
- Guangdong province engineering laboratory for transplantation medicine, Guangzhou, China.
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24
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Vongthip W, Nilkhet S, Boonruang K, Sukprasansap M, Tencomnao T, Baek SJ. Neuroprotective mechanisms of luteolin in glutamate-induced oxidative stress and autophagy-mediated neuronal cell death. Sci Rep 2024; 14:7707. [PMID: 38565590 PMCID: PMC10987666 DOI: 10.1038/s41598-024-57824-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/21/2024] [Indexed: 04/04/2024] Open
Abstract
Neurodegenerative diseases, characterized by progressive neuronal dysfunction and loss, pose significant health challenges. Glutamate accumulation contributes to neuronal cell death in diseases such as Alzheimer's disease. This study investigates the neuroprotective potential of Albizia lebbeck leaf extract and its major constituent, luteolin, against glutamate-induced hippocampal neuronal cell death. Glutamate-treated HT-22 cells exhibited reduced viability, altered morphology, increased ROS, and apoptosis, which were attenuated by pre-treatment with A. lebbeck extract and luteolin. Luteolin also restored mitochondrial function, decreased mitochondrial superoxide, and preserved mitochondrial morphology. Notably, we first found that luteolin inhibited the excessive process of mitophagy via the inactivation of BNIP3L/NIX and inhibited lysosomal activity. Our study suggests that glutamate-induced autophagy-mediated cell death is attenuated by luteolin via activation of mTORC1. These findings highlight the potential of A. lebbeck as a neuroprotective agent, with luteolin inhibiting glutamate-induced neurotoxicity by regulating autophagy and mitochondrial dynamics.
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Affiliation(s)
- Wudtipong Vongthip
- Department of Clinical Chemistry, Faculty of Allied Health Sciences, Program in Clinical Biochemistry and Molecular Medicine, Chulalongkorn University, 10330, Bangkok, Thailand
- Laboratory of Signal Transduction, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Korea
| | - Sunita Nilkhet
- Department of Clinical Chemistry, Faculty of Allied Health Sciences, Program in Clinical Biochemistry and Molecular Medicine, Chulalongkorn University, 10330, Bangkok, Thailand
- Laboratory of Signal Transduction, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Korea
| | - Kanokkan Boonruang
- Laboratory of Signal Transduction, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Korea
| | - Monruedee Sukprasansap
- Food Toxicology Unit, Institute of Nutrition, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Tewin Tencomnao
- Natural Products for Neuroprotection and Anti-Ageing Research Unit, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Seung Joon Baek
- Laboratory of Signal Transduction, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Korea.
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25
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Li G, Pan B, Liu L, Xu X, Zhao W, Mou Q, Hwang N, Chung SW, Liu X, Tian J. Epigallocatechin-3-gallate restores mitochondrial homeostasis impairment by inhibiting HDAC1-mediated NRF1 histone deacetylation in cardiac hypertrophy. Mol Cell Biochem 2024; 479:963-973. [PMID: 37266748 DOI: 10.1007/s11010-023-04768-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 05/13/2023] [Indexed: 06/03/2023]
Abstract
Decompensated cardiac hypertrophy is accompanied by impaired mitochondrial homeostasis, whether histone acetylation is involved in this process is yet to be determined. The role of HDAC1-mediated NRF1 histone deacetylation was investigated in transverse aortic constriction (TAC)-induced hypertrophy in rats and phenylephrine (PE)-induced hypertrophic cardiomyocytes. Administration of epigallocatechin-3-gallate (EGCG), an inhibitor of HDAC1, restored cardiac function, decreased heart/body weight and fibrosis, increased the ratio of mtDNA/nDNA and the percentage of LysoTracker+ CMs in TAC, compared with TAC without receiving EGCG. In PE-treated hypertrophic H9C2 cells, EGCG attenuated cell hypertrophy and increased LC3B II+MitoTracker+ puncta, as well as the ratio of mtDNA/nDNA. Interestingly, NRF1 but not PGC-1α expression was decreased in TAC- or PE-induced hypertrophic hearts or cells, respectively, while EGCG upregulated both NRF1 and PGC-1α in vitro. EGCG treatment also increased the interaction between PGC-1α and NRF1. In addition to inhibiting HDAC1 expression, EGCG decreased the binding of HDAC1 and increased the binding of acH3K9 or acH3K14 in the promotor regions of PGC-1α and NRF1. In neonatal rat cardiomyocytes, restored NRF1, TFAM and FUNDC1 were abolished by the overexpression of HDAC1. Collectively, data suggest that NRF1 reduction was averted by EGCG via inhibiting HDAC1-mediated histone deacetylation. Acetylation of NRF1 histone may play a key role in maintaining mitochondrial homeostasis associated with cardiac hypertrophy.
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Affiliation(s)
- Gu Li
- Department of Cardiology, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Chongqing, China
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Bo Pan
- Department of Cardiology, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Chongqing, China
| | - Lifei Liu
- National Clinical Research Center for Child Health and Disorders, Chongqing, China
| | - Xiaohui Xu
- Department of Cardiology, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Chongqing, China
| | - Weian Zhao
- Department of Cardiology, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Chongqing, China
| | - Qiuhong Mou
- Department of Cardiology, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Chongqing, China
| | - Narae Hwang
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Su Wol Chung
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Xiaoli Liu
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jie Tian
- Department of Cardiology, Children's Hospital of Chongqing Medical University, Chongqing, China.
- National Clinical Research Center for Child Health and Disorders, Chongqing, China.
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26
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Chen Y, Guo M, Xie K, Lei M, Chai Y, Zhang Z, Deng Z, Peng Q, Cao J, Lin S, Xu F. Progranulin promotes regulatory T cells plasticity by mitochondrial metabolism through AMPK/PGC-1α pathway in ARDS. Clin Immunol 2024; 261:109940. [PMID: 38365048 DOI: 10.1016/j.clim.2024.109940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/01/2024] [Accepted: 02/10/2024] [Indexed: 02/18/2024]
Abstract
As the aging population increases, the focus on elderly patients with acute respiratory distress syndrome (ARDS) is also increasing. In this article, we found progranulin (PGRN) differential expression in ARDS patients and healthy controls, even in young and old ARDS patients. Its expression strongly correlates with several cytokines in both young and elderly ARDS patients. PGRN has comparable therapeutic effects in young and elderly mice with lipopolysaccharide-induced acute lung injury, manifesting as lung injury, apoptosis, inflammation, and regulatory T cells (Tregs) differentiation. Considering that Tregs differentiation relies on metabolic reprogramming, we discovered that Tregs differentiation was mediated by mitochondrial function, especially in the aged population. Furthermore, we demonstrated that PGRN alleviated the mitochondrial damage during Tregs differentiation through the AMPK/PGC-1α pathway in T cells. Collectively, PGRN may regulate mitochondria function to promote Tregs differentiation through the AMPK/PGC-1α pathway to improve ARDS.
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Affiliation(s)
- Yanqing Chen
- Department of Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Minkang Guo
- Department of Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China; The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ke Xie
- Department of Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ming Lei
- Department of Critical Care Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Yusen Chai
- Department of Anaesthesiology and Intensive Care Medicine, Pulmonary Engineering Group, University Hospital Carl Gustav Carus Dresden at Technische Universität Dresden, Dresden, Germany
| | - Zhengtao Zhang
- Department of Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhenhua Deng
- Department of Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qiaozhi Peng
- Department of Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ju Cao
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shihui Lin
- Department of Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
| | - Fang Xu
- Department of Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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27
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Wu Q, Carlos AR, Braza F, Bergman ML, Kitoko JZ, Bastos-Amador P, Cuadrado E, Martins R, Oliveira BS, Martins VC, Scicluna BP, Landry JJ, Jung FE, Ademolue TW, Peitzsch M, Almeida-Santos J, Thompson J, Cardoso S, Ventura P, Slot M, Rontogianni S, Ribeiro V, Domingues VDS, Cabral IA, Weis S, Groth M, Ameneiro C, Fidalgo M, Wang F, Demengeot J, Amsen D, Soares MP. Ferritin heavy chain supports stability and function of the regulatory T cell lineage. EMBO J 2024; 43:1445-1483. [PMID: 38499786 PMCID: PMC11021483 DOI: 10.1038/s44318-024-00064-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 02/15/2024] [Accepted: 02/20/2024] [Indexed: 03/20/2024] Open
Abstract
Regulatory T (TREG) cells develop via a program orchestrated by the transcription factor forkhead box protein P3 (FOXP3). Maintenance of the TREG cell lineage relies on sustained FOXP3 transcription via a mechanism involving demethylation of cytosine-phosphate-guanine (CpG)-rich elements at conserved non-coding sequences (CNS) in the FOXP3 locus. This cytosine demethylation is catalyzed by the ten-eleven translocation (TET) family of dioxygenases, and it involves a redox reaction that uses iron (Fe) as an essential cofactor. Here, we establish that human and mouse TREG cells express Fe-regulatory genes, including that encoding ferritin heavy chain (FTH), at relatively high levels compared to conventional T helper cells. We show that FTH expression in TREG cells is essential for immune homeostasis. Mechanistically, FTH supports TET-catalyzed demethylation of CpG-rich sequences CNS1 and 2 in the FOXP3 locus, thereby promoting FOXP3 transcription and TREG cell stability. This process, which is essential for TREG lineage stability and function, limits the severity of autoimmune neuroinflammation and infectious diseases, and favors tumor progression. These findings suggest that the regulation of intracellular iron by FTH is a stable property of TREG cells that supports immune homeostasis and limits the pathological outcomes of immune-mediated inflammation.
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Affiliation(s)
- Qian Wu
- Instituto Gulbenkian de Ciência, Oeiras, Portugal
- International Institutes of Medicine, the Fourth Affiliated Hospital of Zhejiang University, School of Medicine, Yiwu, Zhejiang, China
| | - Ana Rita Carlos
- Instituto Gulbenkian de Ciência, Oeiras, Portugal
- Departamento de Biologia Animal, Centro de Ecologia, Evolução e Alterações Ambientais, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Faouzi Braza
- Instituto Gulbenkian de Ciência, Oeiras, Portugal
| | | | | | | | - Eloy Cuadrado
- Department of Hematopoiesis and Department of Immunopathology, Sanquin Research and Landsteiner Laboratory, Amsterdam, The Netherlands
| | - Rui Martins
- Instituto Gulbenkian de Ciência, Oeiras, Portugal
| | | | | | - Brendon P Scicluna
- Department of Applied Biomedical Science, Faculty of Health Sciences, Mater Dei Hospital, and Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Jonathan Jm Landry
- Genomic Core Facility, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Ferris E Jung
- Genomic Core Facility, European Molecular Biology Laboratory, Heidelberg, Germany
| | | | - Mirko Peitzsch
- Institute for Clinical Chemistry and Laboratory Medicine, University Clinic Carl Gustav Carus, TU Dresden, Dresden, Germany
| | | | | | | | | | - Manon Slot
- Department of Hematopoiesis and Department of Immunopathology, Sanquin Research and Landsteiner Laboratory, Amsterdam, The Netherlands
| | - Stamatia Rontogianni
- Department of Hematopoiesis and Department of Immunopathology, Sanquin Research and Landsteiner Laboratory, Amsterdam, The Netherlands
| | - Vanessa Ribeiro
- Departamento de Biologia Animal, Centro de Ecologia, Evolução e Alterações Ambientais, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | | | | | - Sebastian Weis
- Department for Anesthesiology and Intensive Care Medicine, Jena University Hospital, Friedrich-Schiller University, Jena, Germany
- Institute for Infectious Disease and Infection Control, Jena University Hospital, Friedrich-Schiller University, Jena, Germany
- Leibniz Institute for Natural Product Research and Infection Biology, Hans-Knöll Institute-HKI, Jena, Germany
| | - Marco Groth
- Leibniz Institute on Aging-Fritz Lipmann Institute, Jena, Germany
| | - Cristina Ameneiro
- Center for Research in Molecular Medicine and Chronic Diseases (CiMUS), Universidade de Santiago de Compostela-Health Research Institute (IDIS), Santiago de Compostela, Spain
| | - Miguel Fidalgo
- Center for Research in Molecular Medicine and Chronic Diseases (CiMUS), Universidade de Santiago de Compostela-Health Research Institute (IDIS), Santiago de Compostela, Spain
| | - Fudi Wang
- The Second Affiliated Hospital, School of Public Health, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | | | - Derk Amsen
- Department of Hematopoiesis and Department of Immunopathology, Sanquin Research and Landsteiner Laboratory, Amsterdam, The Netherlands
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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28
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Filice M, Gattuso A, Imbrogno S, Mazza R, Amelio D, Caferro A, Agnisola C, Icardo JM, Cerra MC. Functional, structural, and molecular remodelling of the goldfish (Carassius auratus) heart under moderate hypoxia. FISH PHYSIOLOGY AND BIOCHEMISTRY 2024; 50:667-685. [PMID: 38198074 PMCID: PMC11021278 DOI: 10.1007/s10695-024-01297-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 01/01/2024] [Indexed: 01/11/2024]
Abstract
The goldfish (Carassius auratus) is known for its physiologic ability to survive even long periods of oxygen limitation (hypoxia), adapting the cardiac performance to the requirements of peripheral tissue perfusion. We here investigated the effects of short-term moderate hypoxia on the heart, focusing on ventricular adaptation, in terms of hemodynamics and structural traits. Functional evaluations revealed that animals exposed to 4 days of environmental hypoxia increased the hemodynamic performance evaluated on ex vivo cardiac preparations. This was associated with a thicker and more vascularized ventricular compact layer and a reduced luminal lacunary space. Compared to normoxic animals, ventricular cardiomyocytes of goldfish exposed to hypoxia showed an extended mitochondrial compartment and a modulation of proteins involved in mitochondria dynamics. The enhanced expression of the pro-fission markers DRP1 and OMA1, and the modulation of the short and long forms of OPA1, suggested a hypoxia-related mitochondria fission. Our data propose that under hypoxia, the goldfish heart undergoes a structural remodelling associated with a potentiated cardiac activity. The energy demand for the highly performant myocardium is supported by an increased number of mitochondria, likely occurring through fission events.
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Affiliation(s)
- Mariacristina Filice
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende, Italy
| | - Alfonsina Gattuso
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende, Italy
| | - Sandra Imbrogno
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende, Italy.
| | - Rosa Mazza
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende, Italy
| | - Daniela Amelio
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende, Italy
| | - Alessia Caferro
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende, Italy
| | - Claudio Agnisola
- Department of Biological Sciences, University of Naples Federico II, Naples, Italy
| | - José Manuel Icardo
- Department of Anatomy and Cell Biology, University of Cantabria, Santander, Spain
| | - Maria Carmela Cerra
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende, Italy
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Libring S, Berestesky ED, Reinhart-King CA. The movement of mitochondria in breast cancer: internal motility and intercellular transfer of mitochondria. Clin Exp Metastasis 2024:10.1007/s10585-024-10269-3. [PMID: 38489056 DOI: 10.1007/s10585-024-10269-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 01/18/2024] [Indexed: 03/17/2024]
Abstract
As a major energy source for cells, mitochondria are involved in cell growth and proliferation, as well as migration, cell fate decisions, and many other aspects of cellular function. Once thought to be irreparably defective, mitochondrial function in cancer cells has found renewed interest, from suggested potential clinical biomarkers to mitochondria-targeting therapies. Here, we will focus on the effect of mitochondria movement on breast cancer progression. Mitochondria move both within the cell, such as to localize to areas of high energetic need, and between cells, where cells within the stroma have been shown to donate their mitochondria to breast cancer cells via multiple methods including tunneling nanotubes. The donation of mitochondria has been seen to increase the aggressiveness and chemoresistance of breast cancer cells, which has increased recent efforts to uncover the mechanisms of mitochondrial transfer. As metabolism and energetics are gaining attention as clinical targets, a better understanding of mitochondrial function and implications in cancer are required for developing effective, targeted therapeutics for cancer patients.
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Affiliation(s)
- Sarah Libring
- Department of Biomedical Engineering, Vanderbilt University, 440 Engineering and Science Building, 1212 25thAvenue South, Nashville, TN, 37235, USA
| | - Emily D Berestesky
- Department of Biomedical Engineering, Vanderbilt University, 440 Engineering and Science Building, 1212 25thAvenue South, Nashville, TN, 37235, USA
| | - Cynthia A Reinhart-King
- Department of Biomedical Engineering, Vanderbilt University, 440 Engineering and Science Building, 1212 25thAvenue South, Nashville, TN, 37235, USA.
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30
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Nikolic A, Fahlbusch P, Riffelmann NK, Wahlers N, Jacob S, Hartwig S, Kettel U, Schiller M, Dille M, Al-Hasani H, Kotzka J, Knebel B. Chronic stress alters hepatic metabolism and thermodynamic respiratory efficiency affecting epigenetics in C57BL/6 mice. iScience 2024; 27:109276. [PMID: 38450153 PMCID: PMC10915629 DOI: 10.1016/j.isci.2024.109276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 02/01/2024] [Accepted: 02/15/2024] [Indexed: 03/08/2024] Open
Abstract
Chronic stress episodes increase metabolic disease risk even after recovery. We propose that persistent stress detrimentally impacts hepatic metabolic reprogramming, particularly mitochondrial function. In male C57BL/6 mice chronic variable stress (Cvs) reduced energy expenditure (EE) and body mass despite increased energy intake versus controls. This coincided with decreased glucose metabolism and increased lipid β-oxidation, correlating with EE. After Cvs, mitochondrial function revealed increased thermodynamic efficiency (ƞ-opt) of complex CI, positively correlating with blood glucose and NEFA and inversely with EE. After Cvs recovery, the metabolic flexibility of hepatocytes was lost. Reduced CI-driving NAD+/NADH ratio, and diminished methylation-related one-carbon cycle components hinted at epigenetic regulation. Although initial DNA methylation differences were minimal after Cvs, they diverged during the recovery phase. Here, the altered enrichment of mitochondrial DNA methylation and linked transcriptional networks were observed. In conclusion, Cvs rapidly initiates the reprogramming of hepatic energy metabolism, supported by lasting epigenetic modifications.
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Affiliation(s)
- Aleksandra Nikolic
- Institute of Clinical Biochemistry and Pathobiochemistry, German Diabetes Center at the Heinrich-Heine-University Duesseldorf, Leibniz Center for Diabetes Research, 40225 Duesseldorf, Germany
- German Center for Diabetes Research (DZD), Partner Duesseldorf, 40225 Duesseldorf, Germany
| | - Pia Fahlbusch
- Institute of Clinical Biochemistry and Pathobiochemistry, German Diabetes Center at the Heinrich-Heine-University Duesseldorf, Leibniz Center for Diabetes Research, 40225 Duesseldorf, Germany
- German Center for Diabetes Research (DZD), Partner Duesseldorf, 40225 Duesseldorf, Germany
| | - Nele-Kathrien Riffelmann
- Institute of Clinical Biochemistry and Pathobiochemistry, German Diabetes Center at the Heinrich-Heine-University Duesseldorf, Leibniz Center for Diabetes Research, 40225 Duesseldorf, Germany
| | - Natalie Wahlers
- Institute of Clinical Biochemistry and Pathobiochemistry, German Diabetes Center at the Heinrich-Heine-University Duesseldorf, Leibniz Center for Diabetes Research, 40225 Duesseldorf, Germany
| | - Sylvia Jacob
- Institute of Clinical Biochemistry and Pathobiochemistry, German Diabetes Center at the Heinrich-Heine-University Duesseldorf, Leibniz Center for Diabetes Research, 40225 Duesseldorf, Germany
| | - Sonja Hartwig
- Institute of Clinical Biochemistry and Pathobiochemistry, German Diabetes Center at the Heinrich-Heine-University Duesseldorf, Leibniz Center for Diabetes Research, 40225 Duesseldorf, Germany
- German Center for Diabetes Research (DZD), Partner Duesseldorf, 40225 Duesseldorf, Germany
| | - Ulrike Kettel
- Institute of Clinical Biochemistry and Pathobiochemistry, German Diabetes Center at the Heinrich-Heine-University Duesseldorf, Leibniz Center for Diabetes Research, 40225 Duesseldorf, Germany
| | - Martina Schiller
- Institute of Clinical Biochemistry and Pathobiochemistry, German Diabetes Center at the Heinrich-Heine-University Duesseldorf, Leibniz Center for Diabetes Research, 40225 Duesseldorf, Germany
| | - Matthias Dille
- Institute of Clinical Biochemistry and Pathobiochemistry, German Diabetes Center at the Heinrich-Heine-University Duesseldorf, Leibniz Center for Diabetes Research, 40225 Duesseldorf, Germany
| | - Hadi Al-Hasani
- Institute of Clinical Biochemistry and Pathobiochemistry, German Diabetes Center at the Heinrich-Heine-University Duesseldorf, Leibniz Center for Diabetes Research, 40225 Duesseldorf, Germany
- German Center for Diabetes Research (DZD), Partner Duesseldorf, 40225 Duesseldorf, Germany
- Medical Faculty Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany
| | - Jörg Kotzka
- Institute of Clinical Biochemistry and Pathobiochemistry, German Diabetes Center at the Heinrich-Heine-University Duesseldorf, Leibniz Center for Diabetes Research, 40225 Duesseldorf, Germany
- German Center for Diabetes Research (DZD), Partner Duesseldorf, 40225 Duesseldorf, Germany
| | - Birgit Knebel
- Institute of Clinical Biochemistry and Pathobiochemistry, German Diabetes Center at the Heinrich-Heine-University Duesseldorf, Leibniz Center for Diabetes Research, 40225 Duesseldorf, Germany
- German Center for Diabetes Research (DZD), Partner Duesseldorf, 40225 Duesseldorf, Germany
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Xia Q, Lan J, Pan Y, Wang Y, Song T, Yang Y, Tian X, Chen L, Gu Z, Ding YY. Effects of Dityrosine on Lactic Acid Metabolism in Mice Gastrocnemius Muscle During Endurance Exercise via the Oxidative Stress-Induced Mitochondria Damage. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:5269-5282. [PMID: 38439706 DOI: 10.1021/acs.jafc.3c09649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
Dityrosine (Dityr) has been detected in commercial food as a product of protein oxidation and has been shown to pose a threat to human health. This study aims to investigate whether Dityr causes a decrease in lactic acid metabolism in the gastrocnemius muscle during endurance exercise. C57BL/6 mice were administered Dityr or saline by gavage for 13 weeks and underwent an endurance exercise test on a treadmill. Dityr caused a severe reduction in motion displacement and endurance time, along with a significant increase in lactic acid accumulation in the blood and gastrocnemius muscle in mice after exercise. Dityr induced significant mitochondrial defects in the gastrocnemius muscle of mice. Additionally, Dityr induced serious oxidative stress in the gastrocnemius muscle, accompanied by inflammation, which might be one of the causes of mitochondrial dysfunction. Moreover, significant apoptosis in the gastrocnemius muscle increased after exposure to Dityr. This study confirmed that Dityr induced oxidative stress in the gastrocnemius muscle, which further caused significant mitochondrial damage in the gastrocnemius muscle cell, resulting in decreased capacity of lactic acid metabolism and finally affected performance in endurance exercise. This may be one of the possible mechanisms by which highly oxidized foods cause a decreased muscle energy metabolism.
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Affiliation(s)
- Qiudong Xia
- Department of Physical Education, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Jinchi Lan
- Food Safety Key Laboratory of Zhejiang Province, National Experimental Teaching Demonstration Center for Food Engineering and Quality and Safety, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Yuxiang Pan
- Food Safety Key Laboratory of Zhejiang Province, National Experimental Teaching Demonstration Center for Food Engineering and Quality and Safety, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Yuxin Wang
- Food Safety Key Laboratory of Zhejiang Province, National Experimental Teaching Demonstration Center for Food Engineering and Quality and Safety, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Tianyuan Song
- Food Safety Key Laboratory of Zhejiang Province, National Experimental Teaching Demonstration Center for Food Engineering and Quality and Safety, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Ying Yang
- Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xu Tian
- Beijing Competitor Sports Nutrition Research Institute, Beijing 100027, China
| | - Longjun Chen
- Huzhou Shengtao Biotechnology LLC, Huzhou 313000, China
| | - Zhenyu Gu
- Food Safety Key Laboratory of Zhejiang Province, National Experimental Teaching Demonstration Center for Food Engineering and Quality and Safety, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Yin-Yi Ding
- Food Safety Key Laboratory of Zhejiang Province, National Experimental Teaching Demonstration Center for Food Engineering and Quality and Safety, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
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Li W, Zhu H, Chen J, Ru B, Peng Q, Miao J, Liu X. PsAF5 functions as an essential adapter for PsPHB2-mediated mitophagy under ROS stress in Phytophthora sojae. Nat Commun 2024; 15:1967. [PMID: 38438368 PMCID: PMC10912746 DOI: 10.1038/s41467-024-46290-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 02/21/2024] [Indexed: 03/06/2024] Open
Abstract
Host-derived reactive oxygen species (ROS) are an important defense means to protect against pathogens. Although mitochondria are the main intracellular targets of ROS, how pathogens regulate mitochondrial physiology in response to oxidative stress remains elusive. Prohibitin 2 (PHB2) is an inner mitochondrial membrane (IMM) protein, recognized as a mitophagy receptor in animals and fungi. Here, we find that an ANK and FYVE domain-containing protein PsAF5, is an adapter of PsPHB2, interacting with PsATG8 under ROS stress. Unlike animal PHB2 that can recruit ATG8 directly to mitochondria, PsPHB2 in Phytophthora sojae cannot recruit PsATG8 to stressed mitochondria without PsAF5. PsAF5 deletion impairs mitophagy under ROS stress and increases the pathogen's sensitivity to H2O2, resulting in the attenuation of P. sojae virulence. This discovery of a PsPHB2-PsATG8 adapter (PsAF5) in plant-pathogenic oomycetes reveals that mitophagy induction by IMM proteins is conserved in eukaryotes, but with differences in the details of ATG8 recruitment.
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Affiliation(s)
- Wenhao Li
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Hongwei Zhu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Jinzhu Chen
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Binglu Ru
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Qin Peng
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Jianqiang Miao
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Xili Liu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, 712100, Shaanxi, China.
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, 2 Yuanmingyuanxi Road, Beijing, 100193, China.
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33
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Abegg VF, Panajatovic MV, Mancuso RV, Allard JA, Duthaler U, Odermatt A, Krähenbühl S, Bouitbir J. Mechanisms of hepatocellular toxicity associated with the components of St. John's Wort extract hypericin and hyperforin in HepG2 and HepaRG cells. Toxicol Lett 2024; 393:1-13. [PMID: 38219807 DOI: 10.1016/j.toxlet.2024.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/19/2023] [Accepted: 01/10/2024] [Indexed: 01/16/2024]
Abstract
St. John's Wort preparations are used for the treatment of mild to moderate depression. They are usually well tolerated but can cause adverse reactions including liver toxicity in rare cases. To date, the mechanism(s) underlying the hepatotoxicity of St. John's Wort extracts are poorly investigated. We studied the hepatocellular toxicity of hypericin and hyperforin as the two main ingredients of St. John's Wort extracts in HepG2 and HepaRG cells and compared the effects to citalopram (a synthetic serotonin uptake inhibitor) with a special focus on mitochondrial toxicity and oxidative stress. In HepG2 cells, hypericin was membrane-toxic at 100 µM and depleted ATP at 20 µM. In HepaRG cells, ATP depletion started at 5 µM. In comparison, hyperforin and citalopram were not toxic up to 100 µM. In HepG2 cells, hypericin decreased maximal respiration starting at 2 µM and mitochondrial ATP formation starting at 10 µM but did not affect glycolytic ATP production. Hypericin inhibited the activity of complex I, II and IV of the electron transfer system and caused mitochondrial superoxide accumulation in cells. The protein expression of mitochondrial superoxide dismutase 2 (SOD2) and thioredoxin 2 (TRX2) and total and reduced glutathione decreased in cells exposed to hypericin. Finally, hypericin diminished the mitochondrial DNA copy number and caused cell necrosis but not apoptosis. In conclusion, hypericin, but not hyperforin or citalopram, is a mitochondrial toxicant at low micromolar concentrations. This mechanism may contribute to the hepatotoxicity occasionally observed in susceptible patients treated with St. John's Wort preparations.
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Affiliation(s)
- Vanessa Fabienne Abegg
- Division of Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel, Switzerland
| | | | | | - Julien Arthur Allard
- Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, Switzerland
| | - Urs Duthaler
- Division of Clinical Pharmacology & Toxicology, University Hospital, Basel, Switzerland
| | - Alex Odermatt
- Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, Switzerland
| | - Stephan Krähenbühl
- Division of Clinical Pharmacology & Toxicology, University Hospital, Basel, Switzerland
| | - Jamal Bouitbir
- Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, Switzerland.
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34
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Oudejans E, Witkamp D, Hu-A-Ng GV, Hoogterp L, van Rooijen-van Leeuwen G, Kruijff I, Schonewille P, Lalaoui El Mouttalibi Z, Bartelink I, van der Knaap MS, Abbink TE. Pridopidine subtly ameliorates motor skills in a mouse model for vanishing white matter. Life Sci Alliance 2024; 7:e202302199. [PMID: 38171595 PMCID: PMC10765115 DOI: 10.26508/lsa.202302199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 12/22/2023] [Accepted: 12/22/2023] [Indexed: 01/05/2024] Open
Abstract
The leukodystrophy vanishing white matter (VWM) is characterized by chronic and episodic acute neurological deterioration. Curative treatment is presently unavailable. Pathogenic variants in the genes encoding eukaryotic initiation factor 2B (eIF2B) cause VWM and deregulate the integrated stress response (ISR). Previous studies in VWM mouse models showed that several ISR-targeting compounds ameliorate clinical and neuropathological disease hallmarks. It is unclear which ISR components are suitable therapeutic targets. In this study, effects of 4-phenylbutyric acid, tauroursodeoxycholic acid, or pridopidine (PDPD), with ISR targets upstream or downstream of eIF2B, were assessed in VWM mice. In addition, it was found that the composite ataxia score represented motor decline of VWM mice more accurately than the previously used neuroscore. 4-phenylbutyric acid and tauroursodeoxycholic acid did not improve VWM disease hallmarks, whereas PDPD had subtle beneficial effects on motor skills. PDPD alone does not suffice as treatment in VWM mice but may be considered for combination therapy. Also, treatments aimed at ISR components upstream of eIF2B do not improve chronic neurological deterioration; effects on acute episodic decline remain to be investigated.
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Affiliation(s)
- Ellen Oudejans
- https://ror.org/05grdyy37 Child Neurology, Emma Children's Hospital, Amsterdam Leukodystrophy Center, Amsterdam University Medical Centers, Vrije Universiteit and Amsterdam Neuroscience, Amsterdam, Netherlands
- Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research, VU University, Amsterdam, Netherlands
| | - Diede Witkamp
- https://ror.org/05grdyy37 Child Neurology, Emma Children's Hospital, Amsterdam Leukodystrophy Center, Amsterdam University Medical Centers, Vrije Universiteit and Amsterdam Neuroscience, Amsterdam, Netherlands
- Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research, VU University, Amsterdam, Netherlands
| | - Gino V Hu-A-Ng
- https://ror.org/05grdyy37 Child Neurology, Emma Children's Hospital, Amsterdam Leukodystrophy Center, Amsterdam University Medical Centers, Vrije Universiteit and Amsterdam Neuroscience, Amsterdam, Netherlands
- Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research, VU University, Amsterdam, Netherlands
| | - Leoni Hoogterp
- https://ror.org/05grdyy37 Child Neurology, Emma Children's Hospital, Amsterdam Leukodystrophy Center, Amsterdam University Medical Centers, Vrije Universiteit and Amsterdam Neuroscience, Amsterdam, Netherlands
- Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research, VU University, Amsterdam, Netherlands
| | - Gemma van Rooijen-van Leeuwen
- https://ror.org/05grdyy37 Child Neurology, Emma Children's Hospital, Amsterdam Leukodystrophy Center, Amsterdam University Medical Centers, Vrije Universiteit and Amsterdam Neuroscience, Amsterdam, Netherlands
- Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research, VU University, Amsterdam, Netherlands
| | - Iris Kruijff
- https://ror.org/05grdyy37 Child Neurology, Emma Children's Hospital, Amsterdam Leukodystrophy Center, Amsterdam University Medical Centers, Vrije Universiteit and Amsterdam Neuroscience, Amsterdam, Netherlands
- Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research, VU University, Amsterdam, Netherlands
| | - Pleun Schonewille
- https://ror.org/05grdyy37 Child Neurology, Emma Children's Hospital, Amsterdam Leukodystrophy Center, Amsterdam University Medical Centers, Vrije Universiteit and Amsterdam Neuroscience, Amsterdam, Netherlands
- Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research, VU University, Amsterdam, Netherlands
| | - Zeinab Lalaoui El Mouttalibi
- https://ror.org/05grdyy37 Child Neurology, Emma Children's Hospital, Amsterdam Leukodystrophy Center, Amsterdam University Medical Centers, Vrije Universiteit and Amsterdam Neuroscience, Amsterdam, Netherlands
- Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research, VU University, Amsterdam, Netherlands
| | - Imke Bartelink
- Department of Pharmacy and Clinical Pharmacology, Amsterdam UMC, Location VUmc, Amsterdam, Netherlands
| | - Marjo S van der Knaap
- https://ror.org/05grdyy37 Child Neurology, Emma Children's Hospital, Amsterdam Leukodystrophy Center, Amsterdam University Medical Centers, Vrije Universiteit and Amsterdam Neuroscience, Amsterdam, Netherlands
- Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research, VU University, Amsterdam, Netherlands
| | - Truus Em Abbink
- https://ror.org/05grdyy37 Child Neurology, Emma Children's Hospital, Amsterdam Leukodystrophy Center, Amsterdam University Medical Centers, Vrije Universiteit and Amsterdam Neuroscience, Amsterdam, Netherlands
- Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research, VU University, Amsterdam, Netherlands
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35
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Esteca MV, Divino IA, Vieira da Silva AL, Severino MB, Braga RR, Ropelle ER, Simabuco FM, Baptista IL. Parkin is a critical player in the effects of caffeine over mitochondrial quality control pathways during skeletal muscle regeneration in mice. Acta Physiol (Oxf) 2024; 240:e14111. [PMID: 38314948 DOI: 10.1111/apha.14111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 01/04/2024] [Accepted: 01/12/2024] [Indexed: 02/07/2024]
Abstract
AIM This study aimed to investigate the effects of caffeine on pathways associated with mitochondrial quality control and mitochondrial capacity during skeletal muscle regeneration, focusing on the role of Parkin, a key protein involved in mitophagy. METHODS We used in vitro C2C12 myoblast during differentiation with and without caffeine in the medium, and we evaluated several markers of mitochondrial quality control pathways and myotube growth. In vivo experiments, we used C57BL/6J (WT) and Parkintm 1Shn lineage (Parkin-/- ) mice and injured tibial anterior muscle. The mice regenerated TA muscle for 3, 10, and 21 days with or without caffeine ingestion. TA muscle was used to analyze the protein content of several markers of mitochondrial quality pathways, muscle satellite cell differentiation, and protein synthesis. Furthermore, it analyzed mtDNA, mitochondrial respiration, and myofiber growth. RESULTS C2C12 differentiation experiments showed that caffeine decreased Parkin content, potentially leading to increased DRP1 and PGC-1α content and altered mitochondrial population, thereby enhancing growth capacity. Using Parkin-/- mice, we found that caffeine intake during the regenerative process induces an increase in AMPKα phosphorylation and PGC-1α and TFAM content, changes that were partly Parkin-dependent. In addition, the absence of Parkin potentiates the ergogenic effect of caffeine by increasing mitochondrial capacity and myotube growth. Those effects are related to increased ATF4 content and activation of protein synthesis pathways, such as increased 4E-BP1 phosphorylation. CONCLUSION These findings demonstrate that caffeine ingestion changes mitochondrial quality control during skeletal muscle regeneration, and Parkin is a central player in those mechanisms.
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Affiliation(s)
- M V Esteca
- Laboratory of Cell and Tissue Biology, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - I A Divino
- Laboratory of Cell and Tissue Biology, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - A L Vieira da Silva
- Laboratory of Cell and Tissue Biology, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - M B Severino
- Laboratory of Cell and Tissue Biology, School of Applied Sciences, University of Campinas, Limeira, Brazil
- Multidisciplinarity Laboratory of Food and Health, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - R R Braga
- Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - E R Ropelle
- Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - F M Simabuco
- Multidisciplinarity Laboratory of Food and Health, School of Applied Sciences, University of Campinas, Limeira, Brazil
- Department of Biochemistry, Federal University of São Paulo, São Paulo, Brazil
| | - I L Baptista
- Laboratory of Cell and Tissue Biology, School of Applied Sciences, University of Campinas, Limeira, Brazil
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36
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Kang SWS, Cunningham RP, Miller CB, Brown LA, Cultraro CM, Harned A, Narayan K, Hernandez J, Jenkins LM, Lobanov A, Cam M, Porat-Shliom N. A spatial map of hepatic mitochondria uncovers functional heterogeneity shaped by nutrient-sensing signaling. Nat Commun 2024; 15:1799. [PMID: 38418824 PMCID: PMC10902380 DOI: 10.1038/s41467-024-45751-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 02/04/2024] [Indexed: 03/02/2024] Open
Abstract
In the liver, mitochondria are exposed to different concentrations of nutrients due to their spatial positioning across the periportal and pericentral axis. How the mitochondria sense and integrate these signals to respond and maintain homeostasis is not known. Here, we combine intravital microscopy, spatial proteomics, and functional assessment to investigate mitochondrial heterogeneity in the context of liver zonation. We find that periportal and pericentral mitochondria are morphologically and functionally distinct; beta-oxidation is elevated in periportal regions, while lipid synthesis is predominant in the pericentral mitochondria. In addition, comparative phosphoproteomics reveals spatially distinct patterns of mitochondrial composition and potential regulation via phosphorylation. Acute pharmacological modulation of nutrient sensing through AMPK and mTOR shifts mitochondrial phenotypes in the periportal and pericentral regions, linking nutrient gradients across the lobule and mitochondrial heterogeneity. This study highlights the role of protein phosphorylation in mitochondrial structure, function, and overall homeostasis in hepatic metabolic zonation. These findings have important implications for liver physiology and disease.
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Affiliation(s)
- Sun Woo Sophie Kang
- Cell Biology and Imaging Section, Thoracic and GI Malignancies Branch, National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Rory P Cunningham
- Cell Biology and Imaging Section, Thoracic and GI Malignancies Branch, National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Colin B Miller
- Cell Biology and Imaging Section, Thoracic and GI Malignancies Branch, National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Lauryn A Brown
- Cell Biology and Imaging Section, Thoracic and GI Malignancies Branch, National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Constance M Cultraro
- Cell Biology and Imaging Section, Thoracic and GI Malignancies Branch, National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Adam Harned
- Center for Molecular Microscopy, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
- Cancer Research Technology Programs, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Kedar Narayan
- Center for Molecular Microscopy, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
- Cancer Research Technology Programs, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Jonathan Hernandez
- Surgical Oncology Program, National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Lisa M Jenkins
- Laboratory of Cell Biology, National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Alexei Lobanov
- CCR Collaborative Bioinformatics Resource (CCBR) National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Maggie Cam
- CCR Collaborative Bioinformatics Resource (CCBR) National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Natalie Porat-Shliom
- Cell Biology and Imaging Section, Thoracic and GI Malignancies Branch, National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD, USA.
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37
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Li G, Huang H, Wu Y, Shu C, Hwang N, Li Q, Zhao R, Lam HC, Oldham WM, Ei-Chemaly S, Agrawal PB, Tian J, Liu X, Perrella MA. Striated preferentially expressed gene deficiency leads to mitochondrial dysfunction in developing cardiomyocytes. Basic Res Cardiol 2024; 119:151-168. [PMID: 38145999 PMCID: PMC10837246 DOI: 10.1007/s00395-023-01029-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 11/03/2023] [Accepted: 11/24/2023] [Indexed: 12/27/2023]
Abstract
A deficiency of striated preferentially expressed gene (Speg), a member of the myosin light chain kinase family, results in abnormal myofibril structure and function of immature cardiomyocytes (CMs), corresponding with a dilated cardiomyopathy, heart failure and perinatal death. Mitochondrial development plays a role in cardiomyocyte maturation. Therefore, this study investigated whether Speg deficiency ( - / - ) in CMs would result in mitochondrial abnormalities. Speg wild-type and Speg-/- C57BL/6 littermate mice were utilized for assessment of mitochondrial structure by transmission electron and confocal microscopies. Speg was expressed in the first and second heart fields at embryonic (E) day 7.5, prior to the expression of mitochondrial Na+/Ca2+/Li+ exchanger (NCLX) at E8.5. Decreases in NCLX expression (E11.5) and the mitochondrial-to-nuclear DNA ratio (E13.5) were observed in Speg-/- hearts. Imaging of E18.5 Speg-/- hearts revealed abnormal mitochondrial cristae, corresponding with decreased ATP production in cells fed glucose or palmitate, increased levels of mitochondrial superoxide and depolarization of mitochondrial membrane potential. Interestingly, phosphorylated (p) PGC-1α, a key mediator of mitochondrial development, was significantly reduced in Speg-/- hearts during screening for targeted genes. Besides Z-line expression, Speg partially co-localized with PGC-1α in the sarcomeric region and was found in the same complex by co-immunoprecipitation. Overexpression of a Speg internal serine/threonine kinase domain in Speg-/- CMs promoted translocation of pPGC-1α into the nucleus, and restored ATP production that was abolished by siRNA-mediated silencing of PGC-1α. Our results demonstrate a critical role of Speg in mitochondrial development and energy metabolism in CMs, mediated in part by phosphorylation of PGC-1α.
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Affiliation(s)
- Gu Li
- Division of Newborn Medicine, Department of Pediatrics, Brigham and Women's Hospital, Boston, MA, 02115, USA
- Department of Cardiology, and Department of Pulmonary, Children's Hospital, Chongqing Medical University, Chongqing, 400015, China
| | - He Huang
- Department of Anesthesiology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400010, China
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
| | - Yanshuang Wu
- Division of Newborn Medicine, Department of Pediatrics, Brigham and Women's Hospital, Boston, MA, 02115, USA
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
| | - Chang Shu
- Department of Cardiology, and Department of Pulmonary, Children's Hospital, Chongqing Medical University, Chongqing, 400015, China
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
| | - Narae Hwang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
| | - Qifei Li
- Division of Genetics and Genomics, The Manton Center for Orphan Disease Research, Boston Children's Hospital, Boston, MA, 02115, USA
- Division of Neonatology, Department of Pediatrics and Jackson Health System, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Rose Zhao
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
| | - Hilaire C Lam
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
| | - William M Oldham
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
| | - Souheil Ei-Chemaly
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
| | - Pankaj B Agrawal
- Division of Genetics and Genomics, The Manton Center for Orphan Disease Research, Boston Children's Hospital, Boston, MA, 02115, USA
- Division of Neonatology, Department of Pediatrics and Jackson Health System, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Jie Tian
- Department of Cardiology, and Department of Pulmonary, Children's Hospital, Chongqing Medical University, Chongqing, 400015, China
| | - Xiaoli Liu
- Division of Newborn Medicine, Department of Pediatrics, Brigham and Women's Hospital, Boston, MA, 02115, USA.
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA.
| | - Mark A Perrella
- Division of Newborn Medicine, Department of Pediatrics, Brigham and Women's Hospital, Boston, MA, 02115, USA
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
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Filice M, Caferro A, Gattuso A, Sperone E, Agnisola C, Faggio C, Cerra MC, Imbrogno S. Effects of environmental hypoxia on the goldfish skeletal muscle: Focus on oxidative status and mitochondrial dynamics. JOURNAL OF CONTAMINANT HYDROLOGY 2024; 261:104299. [PMID: 38237486 DOI: 10.1016/j.jconhyd.2024.104299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 01/02/2024] [Accepted: 01/11/2024] [Indexed: 02/13/2024]
Abstract
The skeletal muscle is a highly plastic tissue. Its ability to respond to external stimuli and challenges allows it to face the functional needs of the organism. In the goldfish Carassius auratus, a model of hypoxia resistance, exposure to reduced oxygen is accompanied by an improvement of the swimming performance, relying on a sustained contractile behavior of the skeletal muscle. At the moment, limited information is available on the mechanisms underlying these responses. We here evaluated the effects of short- (4 days) and long- (20 days) term exposure to moderate water hypoxia on the goldfish white skeletal muscle, focusing on oxidative status and mitochondrial dynamics. No differences in lipid peroxidation, measured as 2-thiobarbituric acid-reacting substances (TBARS), and oxidatively modified proteins (OMP) were detected in animals exposed to hypoxia with respect to their normoxic counterparts. Exposure to short-term hypoxia was characterized by an enhanced SOD activity and expression, paralleled by increased levels of Nrf2, a regulator of the antioxidant cell response, and HSP70, a chaperone also acting as a redox sensor. The expression of markers of mitochondrial biogenesis (TFAM) and abundance (VDAC) and of the mtDNA/nDNA ratio was similar under normoxia and under both short- and long-term hypoxia, thus excluding a rearrangement of the mitochondrial apparatus. Only an increase of PGC1α (a transcription factor involved in mitochondrial dynamics) was detected after 20 days of hypoxia. Our results revealed novel aspects of the molecular mechanisms that in the goldfish skeletal muscle may sustain the response to hypoxia, thus contributing to adequate tissue function to organism requirements.
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Affiliation(s)
- Mariacristina Filice
- Dept. of Biology, Ecology and Earth Sciences, University of Calabria, Rende, Italy
| | - Alessia Caferro
- Dept. of Biology, Ecology and Earth Sciences, University of Calabria, Rende, Italy
| | - Alfonsina Gattuso
- Dept. of Biology, Ecology and Earth Sciences, University of Calabria, Rende, Italy.
| | - Emilio Sperone
- Dept. of Biology, Ecology and Earth Sciences, University of Calabria, Rende, Italy
| | - Claudio Agnisola
- Dept. of Biological Sciences, University of Naples Federico II, Napoli, Italy
| | - Caterina Faggio
- Dept. of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy; Dept. of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Naples, Italy.
| | - Maria Carmela Cerra
- Dept. of Biology, Ecology and Earth Sciences, University of Calabria, Rende, Italy
| | - Sandra Imbrogno
- Dept. of Biology, Ecology and Earth Sciences, University of Calabria, Rende, Italy
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39
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Huang T, Li H, Chen X, Chen D, Yu B, He J, Luo Y, Yan H, Zheng P, Yu J, Huang Z. Dietary Ferulic Acid Increases Endurance Capacity by Promoting Skeletal Muscle Oxidative Phenotype, Mitochondrial Function, and Antioxidant Capacity. Mol Nutr Food Res 2024; 68:e2200719. [PMID: 38193241 DOI: 10.1002/mnfr.202200719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 06/23/2023] [Indexed: 01/10/2024]
Abstract
SCOPE Endurance capacity is essential for endurance athletes' achievement and individuals' health. Nutritional supplements are a proven way to enhance endurance capacity. Previous studies have shown that ferulic acid (FA) enhances endurance capacity, but the underlying mechanism is unclear. The study is aimed to investigate the mechanism by which FA increases endurance capacity. METHODS AND RESULTS Forty mice are divided into control and 0.5% FA-supplemented groups, and an exhaustive swimming test demonstrates increased endurance capacity with FA supplementation. This study investigates the underlying mechanism for this effect of FA. Firstly, RT-PCR and western blot analysis find that FA increases the transformation from fast to slow muscle fiber. Additionally, adenosine triphosphate concentration, metabolic enzyme activity, and mitochondrial DNA analysis find that FA increases mitochondrial biogenesis and activates nuclear factor erythroid 2-related factor (NRF)1 signaling pathway in muscle. Besides, through antioxidant capacity analysis, this study finds that FA activates NRF2 signaling pathway and improves the antioxidant capacity in muscle. Moreover, inhibiting NRF2 eliminates FA's effect on muscle fiber transformation in C2C12 cells. CONCLUSION Our results suggest that FA increases endurance capacity by promoting skeletal muscle oxidative phenotype, mitochondrial function, and antioxidant capacity, which may be related to the NRF1 and NRF2 signaling pathways.
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Affiliation(s)
- Tengteng Huang
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, P. R. China
| | - Huawei Li
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, P. R. China
| | - Xiaoling Chen
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, P. R. China
| | - Daiwen Chen
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, P. R. China
| | - Bing Yu
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, P. R. China
| | - Jun He
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, P. R. China
| | - Yuheng Luo
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, P. R. China
| | - Hui Yan
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, P. R. China
| | - Ping Zheng
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, P. R. China
| | - Jie Yu
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, P. R. China
| | - Zhiqing Huang
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, 611130, P. R. China
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40
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Zhou H, Zhang W, Li H, Xu F, Yinwang E, Xue Y, Chen T, Wang S, Wang Z, Sun H, Wang F, Mou H, Yao M, Chai X, Zhang J, Diarra MD, Li B, Zhang C, Gao J, Ye Z. Osteocyte mitochondria inhibit tumor development via STING-dependent antitumor immunity. SCIENCE ADVANCES 2024; 10:eadi4298. [PMID: 38232158 DOI: 10.1126/sciadv.adi4298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 12/18/2023] [Indexed: 01/19/2024]
Abstract
Bone is one of the most common sites of tumor metastases. During the last step of bone metastasis, cancer cells colonize and disrupt the bone matrix, which is maintained mainly by osteocytes, the most abundant cells in the bone microenvironment. However, the role of osteocytes in bone metastasis is still unclear. Here, we demonstrated that osteocytes transfer mitochondria to metastatic cancer cells and trigger the cGAS/STING-mediated antitumor response. Blocking the transfer of mitochondria by specifically knocking out mitochondrial Rho GTPase 1 (Rhot1) or mitochondrial mitofusin 2 (Mfn2) in osteocytes impaired tumor immunogenicity and consequently resulted in the progression of metastatic cancer toward the bone matrix. These findings reveal the protective role of osteocytes against cancer metastasis by transferring mitochondria to cancer cells and potentially offer a valuable therapeutic strategy for preventing bone metastasis.
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Affiliation(s)
- Hao Zhou
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Wenkan Zhang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Hengyuan Li
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Fan Xu
- Department of Dermatology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Eloy Yinwang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Yucheng Xue
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Tao Chen
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Shengdong Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Zenan Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Hangxiang Sun
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Fangqian Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Haochen Mou
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Minjun Yao
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Xupeng Chai
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Jiahao Zhang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Mohamed Diaty Diarra
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Binghao Li
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Changqing Zhang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Junjie Gao
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
- Shanghai Sixth People's Hospital Fujian, No. 16, Luoshan Section, Jinguang Road, Luoshan Street, Jinjiang City, Quanzhou, Fujian, China
| | - Zhaoming Ye
- Orthopedics Research Institute of Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou, Zhejiang, China
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
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Bittel AJ, Bittel DC, Gordish-Dressman H, Chen YW. Voluntary wheel running improves molecular and functional deficits in a murine model of facioscapulohumeral muscular dystrophy. iScience 2024; 27:108632. [PMID: 38188524 PMCID: PMC10770537 DOI: 10.1016/j.isci.2023.108632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 09/11/2023] [Accepted: 11/30/2023] [Indexed: 01/09/2024] Open
Abstract
Endurance exercise training is beneficial for skeletal muscle health, but it is unclear if this type of exercise can target or correct the molecular mechanisms of facioscapulohumeral muscular dystrophy (FSHD). Using the FLExDUX4 murine model of FSHD characterized by chronic, low levels of pathological double homeobox protein 4 (DUX4) gene expression, we show that 6 weeks of voluntary, free wheel running improves running performance, strength, mitochondrial function, and sarcolemmal repair capacity, while slowing/reversing skeletal muscle fibrosis. These improvements are associated with restored transcriptional activity of gene networks/pathways regulating actin cytoskeletal signaling, vascular remodeling, inflammation, fibrosis, and muscle mass toward wild-type (WT) levels. However, FLExDUX4 mice exhibit blunted increases in mitochondrial content with training and persistent transcriptional overactivation of hypoxia, inflammatory, angiogenic, and cytoskeletal pathways. These results identify exercise-responsive and non-responsive molecular pathways in FSHD, while providing support for the use of endurance-type exercise as a non-invasive treatment option.
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Affiliation(s)
- Adam J. Bittel
- Center for Genetic Medicine Research, Children’s National Hospital, Washington, DC 20012, USA
| | - Daniel C. Bittel
- Center for Genetic Medicine Research, Children’s National Hospital, Washington, DC 20012, USA
| | | | - Yi-Wen Chen
- Center for Genetic Medicine Research, Children’s National Hospital, Washington, DC 20012, USA
- Department of Genomics and Precision Medicine, School of Medicine and Health Sciences, George Washington University, Washington, DC 20052, USA
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42
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Buss LG, Rheinheimer BA, Limesand KH. Radiation-induced changes in energy metabolism result in mitochondrial dysfunction in salivary glands. Sci Rep 2024; 14:845. [PMID: 38191641 PMCID: PMC10774336 DOI: 10.1038/s41598-023-50877-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 12/27/2023] [Indexed: 01/10/2024] Open
Abstract
Salivary glands are indirectly damaged during radiotherapy for head and neck cancer, resulting in acute and chronic hyposalivation. Current treatments for radiation-induced hyposalivation do not permanently restore function to the gland; therefore, more mechanistic understanding of the damage response is needed to identify therapeutic targets for lasting restoration. Energy metabolism reprogramming has been observed in cancer and wound healing models to provide necessary fuel for cell proliferation; however, there is limited understanding of alterations in energy metabolism reprogramming in tissues that fail to heal. We measured extracellular acidification and oxygen consumption rates, assessed mitochondrial DNA copy number, and tested fuel dependency of irradiated primary salivary acinar cells. Radiation treatment leads to increases in glycolytic flux, oxidative phosphorylation, and ATP production rate at acute and intermediate time points. In contrast, at chronic radiation time points there is a significant decrease in glycolytic flux, oxidative phosphorylation, and ATP production rate. Irradiated salivary glands exhibit significant decreases in spare respiratory capacity and increases in mitochondrial DNA copy number at days 5 and 30 post-treatment, suggesting a mitochondrial dysfunction phenotype. These results elucidate kinetic changes in energy metabolism reprogramming of irradiated salivary glands that may underscore the chronic loss of function phenotype.
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Affiliation(s)
- Lauren G Buss
- School of Nutritional Sciences and Wellness, University of Arizona, 1177 E 4th St, Shantz Building Room 421, Tucson, AZ, USA
| | - Brenna A Rheinheimer
- School of Nutritional Sciences and Wellness, University of Arizona, 1177 E 4th St, Shantz Building Room 421, Tucson, AZ, USA
| | - Kirsten H Limesand
- School of Nutritional Sciences and Wellness, University of Arizona, 1177 E 4th St, Shantz Building Room 421, Tucson, AZ, USA.
- University of Arizona Cancer Center, Tucson, AZ, USA.
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43
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Zhang X, Ding X, Wang C, Le Q, Wu D, Song A, Huang G, Luo L, Luo Y, Yang X, Goins AE, Desai SP, Qiu C, Silva FD, Feldman LE, Zhou J, Spafford MF, Boyd NH, Prossnitz ER, Yang XO, Wang QA, Liu M. Depletion of JunB increases adipocyte thermogenic capacity and ameliorates diet-induced insulin resistance. Nat Metab 2024; 6:78-93. [PMID: 38191667 PMCID: PMC10954369 DOI: 10.1038/s42255-023-00945-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 11/10/2023] [Indexed: 01/10/2024]
Abstract
The coexistence of brown adipocytes with low and high thermogenic activity is a fundamental feature of brown adipose tissue heterogeneity and plasticity. However, the mechanisms that govern thermogenic adipocyte heterogeneity and its significance in obesity and metabolic disease remain poorly understood. Here we show that in male mice, a population of transcription factor jun-B (JunB)-enriched (JunB+) adipocytes within the brown adipose tissue exhibits lower thermogenic capacity compared to high-thermogenic adipocytes. The JunB+ adipocyte population expands in obesity. Depletion of JunB in adipocytes increases the fraction of adipocytes exhibiting high thermogenic capacity, leading to enhanced basal and cold-induced energy expenditure and protection against diet-induced obesity and insulin resistance. Mechanistically, JunB antagonizes the stimulatory effects of PPARγ coactivator-1α on high-thermogenic adipocyte formation by directly binding to the promoter of oestrogen-related receptor alpha, a PPARγ coactivator-1α downstream effector. Taken together, our study uncovers that JunB shapes thermogenic adipocyte heterogeneity, serving a critical role in maintaining systemic metabolic health.
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Affiliation(s)
- Xing Zhang
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Xiaofeng Ding
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Chunqing Wang
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Que Le
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Dandan Wu
- Department of Molecular Genetics and Microbiology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Anying Song
- Department of Molecular & Cellular Endocrinology, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Guixiang Huang
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, People's Republic of China
| | - Liping Luo
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Yan Luo
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Xin Yang
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Aleyah E Goins
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Sharina P Desai
- Autophagy Inflammation and Metabolism Center for Biomedical Research Excellence, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Chengrui Qiu
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Floyd D Silva
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Lily Elizabeth Feldman
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Jianlin Zhou
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, People's Republic of China
| | - Michael F Spafford
- Department of Surgery, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Nathan H Boyd
- Department of Surgery, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Eric R Prossnitz
- Autophagy Inflammation and Metabolism Center for Biomedical Research Excellence, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
- Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
- UNM Comprehensive Cancer Center (UNMCCC), University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Xuexian O Yang
- Department of Molecular Genetics and Microbiology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
- Autophagy Inflammation and Metabolism Center for Biomedical Research Excellence, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Qiong A Wang
- Department of Molecular & Cellular Endocrinology, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Meilian Liu
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA.
- Autophagy Inflammation and Metabolism Center for Biomedical Research Excellence, University of New Mexico Health Sciences Center, Albuquerque, NM, USA.
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Akhmetshina A, Bianco V, Bradić I, Korbelius M, Pirchheim A, Kuentzel KB, Eichmann TO, Hinteregger H, Kolb D, Habisch H, Liesinger L, Madl T, Sattler W, Radović B, Sedej S, Birner-Gruenberger R, Vujić N, Kratky D. Loss of lysosomal acid lipase results in mitochondrial dysfunction and fiber switch in skeletal muscles of mice. Mol Metab 2024; 79:101869. [PMID: 38160938 PMCID: PMC7615526 DOI: 10.1016/j.molmet.2023.101869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/18/2023] [Accepted: 12/28/2023] [Indexed: 01/03/2024] Open
Abstract
OBJECTIVE Lysosomal acid lipase (LAL) is the only enzyme known to hydrolyze cholesteryl esters (CE) and triacylglycerols in lysosomes at an acidic pH. Despite the importance of lysosomal hydrolysis in skeletal muscle (SM), research in this area is limited. We hypothesized that LAL may play an important role in SM development, function, and metabolism as a result of lipid and/or carbohydrate metabolism disruptions. RESULTS Mice with systemic LAL deficiency (Lal-/-) had markedly lower SM mass, cross-sectional area, and Feret diameter despite unchanged proteolysis or protein synthesis markers in all SM examined. In addition, Lal-/- SM showed increased total cholesterol and CE concentrations, especially during fasting and maturation. Regardless of increased glucose uptake, expression of the slow oxidative fiber marker MYH7 was markedly increased in Lal-/-SM, indicating a fiber switch from glycolytic, fast-twitch fibers to oxidative, slow-twitch fibers. Proteomic analysis of the oxidative and glycolytic parts of the SM confirmed the transition between fast- and slow-twitch fibers, consistent with the decreased Lal-/- muscle size due to the "fiber paradox". Decreased oxidative capacity and ATP concentration were associated with reduced mitochondrial function of Lal-/- SM, particularly affecting oxidative phosphorylation, despite unchanged structure and number of mitochondria. Impairment in muscle function was reflected by increased exhaustion in the treadmill peak effort test in vivo. CONCLUSION We conclude that whole-body loss of LAL is associated with a profound remodeling of the muscular phenotype, manifested by fiber type switch and a decline in muscle mass, most likely due to dysfunctional mitochondria and impaired energy metabolism, at least in mice.
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Affiliation(s)
- Alena Akhmetshina
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Valentina Bianco
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Ivan Bradić
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Melanie Korbelius
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Anita Pirchheim
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Katharina B Kuentzel
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria; Department of Biomedical Science, University of Copenhagen, Copenhagen, Denmark
| | - Thomas O Eichmann
- Institute of Molecular Biosciences, University of Graz, Graz, Austria; Core Facility Mass Spectrometry, Center for Medical Research, Medical University of Graz, Graz, Austria; BioTechMed-Graz, Graz, Austria
| | - Helga Hinteregger
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Dagmar Kolb
- BioTechMed-Graz, Graz, Austria; Core Facility Ultrastructural Analysis, Medical University of Graz, Graz, Austria; Gottfried Schatz Research Center, Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria
| | - Hansjoerg Habisch
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Laura Liesinger
- Institute of Chemical Technologies and Analytics, TU Wien, Vienna, Austria
| | - Tobias Madl
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria; BioTechMed-Graz, Graz, Austria
| | - Wolfgang Sattler
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Branislav Radović
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Simon Sedej
- BioTechMed-Graz, Graz, Austria; Department of Internal Medicine, Division of Cardiology, Medical University of Graz, Graz, Austria; Institute of Physiology, Faculty of Medicine, University of Maribor, Slovenia
| | - Ruth Birner-Gruenberger
- BioTechMed-Graz, Graz, Austria; Institute of Chemical Technologies and Analytics, TU Wien, Vienna, Austria; Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Nemanja Vujić
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Dagmar Kratky
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria; BioTechMed-Graz, Graz, Austria.
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Sato K, Satoshi Y, Miyauchi Y, Sato F, Kon R, Ikarashi N, Chiba Y, Hosoe T, Sakai H. Downregulation of PGC-1α during cisplatin-induced muscle atrophy in murine skeletal muscle. Biochim Biophys Acta Mol Basis Dis 2024; 1870:166877. [PMID: 37673360 DOI: 10.1016/j.bbadis.2023.166877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/20/2023] [Accepted: 08/31/2023] [Indexed: 09/08/2023]
Abstract
This study aimed to investigate the effects of cisplatin on adenosine triphosphate (ATP) levels, expressions of genes related to mitochondrial oxidative phosphorylation (OXPHOS), and the factors related to mitochondrial biosynthesis in skeletal muscle. Systemic cisplatin administration decreased skeletal muscle mass, skeletal muscle strength, and endurance. The mitochondrial DNA /nuclear DNA ratio was also reduced after treatment with cisplatin. Moreover, among the factors related to mitochondrial biogenesis and function, peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) was significantly downregulated in the cisplatin-treated group. Downregulation of PGC-1α in the skeletal muscle may contribute to muscle weakness during cisplatin-induced muscle atrophy.
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Affiliation(s)
- Ken Sato
- Department of Biomolecular Pharmacology, School of Pharmacy, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 1428501, Japan
| | - Yoshida Satoshi
- Department of Biomolecular Pharmacology, School of Pharmacy, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 1428501, Japan
| | - Yu Miyauchi
- Department of Biomolecular Pharmacology, School of Pharmacy, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 1428501, Japan
| | - Fumiaki Sato
- Department of Analytical Pathophysiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, 2-4-41 Ebara, Shinagawa-ku, Tokyo 1428501, Japan
| | - Risako Kon
- Department of Biomolecular Pharmacology, School of Pharmacy, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 1428501, Japan
| | - Nobutomo Ikarashi
- Department of Biomolecular Pharmacology, School of Pharmacy, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 1428501, Japan
| | - Yoshihiko Chiba
- Department of Physiology and Molecular Sciences, School of Pharmacy, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 1428501, Japan
| | - Tomoo Hosoe
- Department of Biomolecular Pharmacology, School of Pharmacy, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 1428501, Japan; Department of Bioregulatory Science, School of Pharmacy, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 1428501, Japan
| | - Hiroyasu Sakai
- Department of Biomolecular Pharmacology, School of Pharmacy, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 1428501, Japan.
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Jiang M, Song Y, Chen X, Lu W, Zhu M, Wei M, Lan F, Cui M, Bai Y. COX6A2 deficiency leads to cardiac remodeling in human pluripotent stem cell-derived cardiomyocytes. Stem Cell Res Ther 2023; 14:357. [PMID: 38072986 PMCID: PMC10712066 DOI: 10.1186/s13287-023-03596-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 12/04/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Cardiac remodeling is the initiating factor for the development of heart failure, which can result from various cardiomyopathies. Cytochrome c oxidase subunit 6A2 (COX6A2) is one of the components of cytochrome c oxidase that drives oxidative phosphorylation. The pathogenesis of myocardial remodeling caused by COX6A2 deficiency in humans remains unclear because there are no suitable research models. In this study, we established a COX6A2-deficient human cardiac myocyte (CM) model that mimics the human COX6A2 homozygous mutation and determined the effects of COX6A2 dysfunction and its underlying mechanism. METHODS A human COX6A2 homozygous knockout cardiomyocyte model was established by combining CRISPR/Cas9 gene editing technology and hiPSC-directed differentiation technology. Cell model phenotypic assays were done to characterize the pathological features of the resulting COX6A2-deficient cardiomyocytes. RESULTS COX6A2 gene knockout did not affect the pluripotency and differentiation efficiency of hiPSCs. Myocardial cells with a COX6A2 gene knockout showed abnormal energy metabolism, increased oxidative stress levels, abnormal calcium transport activity, and decreased contractility. In addition, L-carnitine and trimetazidine significantly improved energy metabolism in the COX6A2-deficient human myocardial model. CONCLUSIONS We have established a COX6A2-deficient human cardiomyocyte model that exhibits abnormal energy metabolism, elevated oxidative stress levels, abnormal calcium transport, and reduced contractility. This model represents an important tool to gain insight into the mechanism of action of energy metabolism disorders resulting in myocardial remodeling, elucidate the gene-phenotype relationship of COX6A2 deficiency, and facilitate drug screening.
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Affiliation(s)
- Mengqi Jiang
- Department of Cell Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Yuanxiu Song
- Department of Cardiology, Peking University Third Hospital, 49 Huayuan North Road, Haidian District, Beijing, 100191, China
| | - Xi Chen
- Department of Cardiology, Peking University Third Hospital, 49 Huayuan North Road, Haidian District, Beijing, 100191, China
| | - Wenjing Lu
- Shenzhen Key Laboratory of Cardiovascular Disease, Fuwai Hospital Chinese Academy of Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, 518057, China
| | - Min Zhu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Mingyu Wei
- Department of Cardiology, Peking University Third Hospital, 49 Huayuan North Road, Haidian District, Beijing, 100191, China
| | - Feng Lan
- Shenzhen Key Laboratory of Cardiovascular Disease, Fuwai Hospital Chinese Academy of Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, 518057, China
| | - Ming Cui
- Department of Cardiology, Peking University Third Hospital, 49 Huayuan North Road, Haidian District, Beijing, 100191, China.
| | - Yun Bai
- Department of Cell Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China.
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47
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Buss LG, Rheinheimer BA, Limesand KH. Radiation-Induced Changes in Energy Metabolism Result in Mitochondrial Dysfunction in Salivary Glands. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.27.568879. [PMID: 38077038 PMCID: PMC10705263 DOI: 10.1101/2023.11.27.568879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Salivary glands are indirectly damaged during radiotherapy for head and neck cancer, resulting in acute and chronic hyposalivation. Current treatments for radiation-induced hyposalivation do not permanently restore function to the gland; therefore, more mechanistic understanding of the damage response is needed to identify therapeutic targets for lasting restoration. Energy metabolism reprogramming has been observed in cancer and wound healing models to provide necessary fuel for cell proliferation; however, there is limited understanding of alterations in energy metabolism reprogramming in tissues that fail to heal. We measured extracellular acidification and oxygen consumption rates, assessed mitochondrial DNA copy number, and tested fuel dependency of irradiated primary salivary acinar cells. Radiation treatment leads to increases in glycolytic flux, oxidative phosphorylation, and ATP production rate at acute and intermediate time points. In contrast, at chronic radiation time points there is a significant decrease in glycolytic flux, oxidative phosphorylation, and ATP production rate. Irradiated salivary glands exhibit significant decreases in spare respiratory capacity and increases in mitochondrial DNA copy number at days 5 and 30 post-treatment, suggesting a mitochondrial dysfunction phenotype. These results elucidate kinetic changes in energy metabolism reprogramming of irradiated salivary glands that may underscore the chronic loss of function phenotype.
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48
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Sangha V, Aboulhassane S, Qu QR, Bendayan R. Protective effects of pyrroloquinoline quinone in brain folate deficiency. Fluids Barriers CNS 2023; 20:84. [PMID: 37981683 PMCID: PMC10659058 DOI: 10.1186/s12987-023-00488-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/10/2023] [Indexed: 11/21/2023] Open
Abstract
BACKGROUND Folates (Vitamin B9) are critical for normal neurodevelopment and function, with transport mediated by three major pathways: folate receptor alpha (FRα), proton-coupled folate transporter (PCFT), and reduced folate carrier (RFC). Cerebral folate uptake primarily occurs at the blood-cerebrospinal fluid barrier (BCSFB) through concerted actions of FRα and PCFT, with impaired folate transport resulting in the neurological disorder cerebral folate deficiency (CFD). Increasing evidence suggests that disorders associated with CFD also present with neuroinflammation, oxidative stress, and mitochondrial dysfunction, however the role of brain folate deficiency in inducing these abnormalities is not well-understood. Our laboratory has identified the upregulation of RFC by nuclear respiratory factor 1 (NRF-1) at the blood-brain barrier (BBB) once indirectly activated by the natural compound pyrroloquinoline quinone (PQQ). PQQ is also of interest due to its anti-inflammatory, antioxidant, and mitochondrial biogenesis effects. In this study, we examined the effects of folate deficiency and PQQ treatment on inflammatory and oxidative stress responses, and changes in mitochondrial function. METHODS Primary cultures of mouse mixed glial cells exposed to folate-deficient (FD) conditions and treated with PQQ were analyzed for changes in gene expression of the folate transporters, inflammatory markers, oxidative stress markers, and mitochondrial DNA (mtDNA) content through qPCR analysis. Changes in cellular reactive oxygen species (ROS) levels were analyzed in vitro through a DCFDA assay. Wildtype (C57BL6/N) mice exposed to FD (0 mg/kg folate), or control (2 mg/kg folate) diets underwent a 10-day (20 mg/kg/day) PQQ treatment regimen and brain tissues were collected and analyzed. RESULTS Folate deficiency resulted in increased expression of inflammatory and oxidative stress markers in vitro and in vivo, with increased cellular ROS levels observed in mixed glial cells as well as a reduction of mitochondrial DNA (mtDNA) content observed in FD mixed glial cells. PQQ treatment was able to reverse these changes, while increasing RFC expression through activation of the PGC-1α/NRF-1 signaling pathway. CONCLUSION These results demonstrate the effects of brain folate deficiency, which may contribute to the neurological deficits commonly seen in disorders of CFD. PQQ may represent a novel treatment strategy for disorders associated with CFD, as it can increase folate uptake, while in parallel reversing many abnormalities that arise with brain folate deficiency.
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Affiliation(s)
- Vishal Sangha
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada
| | - Sara Aboulhassane
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada
| | - Qing Rui Qu
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada
| | - Reina Bendayan
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada.
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49
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Cosialls E, Pacreau E, Duruel C, Ceccacci S, Elhage R, Desterke C, Roger K, Guerrera C, Ducloux R, Souquere S, Pierron G, Nemazanyy I, Kelly M, Dalmas E, Chang Y, Goffin V, Mehrpour M, Hamaï A. mTOR inhibition suppresses salinomycin-induced ferroptosis in breast cancer stem cells by ironing out mitochondrial dysfunctions. Cell Death Dis 2023; 14:744. [PMID: 37968262 PMCID: PMC10651934 DOI: 10.1038/s41419-023-06262-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 10/24/2023] [Accepted: 10/31/2023] [Indexed: 11/17/2023]
Abstract
Ferroptosis constitutes a promising therapeutic strategy against cancer by efficiently targeting the highly tumorigenic and treatment-resistant cancer stem cells (CSCs). We previously showed that the lysosomal iron-targeting drug Salinomycin (Sal) was able to eliminate CSCs by triggering ferroptosis. Here, in a well-established breast CSCs model (human mammary epithelial HMLER CD24low/CD44high), we identified that pharmacological inhibition of the mechanistic target of rapamycin (mTOR), suppresses Sal-induced ferroptosis. Mechanistically, mTOR inhibition modulates iron cellular flux and thereby limits iron-mediated oxidative stress. Furthermore, integration of multi-omics data identified mitochondria as a key target of Sal action, leading to profound functional and structural alteration prevented by mTOR inhibition. On top of that, we found that Sal-induced metabolic plasticity is mainly dependent on the mTOR pathway. Overall, our findings provide experimental evidence for the mechanisms of mTOR as a crucial effector of Sal-induced ferroptosis pointing not only that metabolic reprogramming regulates ferroptosis, but also providing proof-of-concept that careful evaluation of such combination therapy (here mTOR and ferroptosis co-targeting) is required in the development of an effective treatment.
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Affiliation(s)
- Emma Cosialls
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 5 and Ferostem group, F-75015, Paris, France
- Ferostem group, F-75015, Paris, France
| | - Emeline Pacreau
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 5 and Ferostem group, F-75015, Paris, France
| | - Clémence Duruel
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 5 and Ferostem group, F-75015, Paris, France
- Ferostem group, F-75015, Paris, France
| | - Sara Ceccacci
- Proteomic Core Facility, Université de Paris - Structure Fédérative de Recherche - Necker, INSERM US24/CNRS, UAR3633, Paris, France
| | - Rima Elhage
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 5 and Ferostem group, F-75015, Paris, France
- Ferostem group, F-75015, Paris, France
| | | | - Kevin Roger
- Proteomic Core Facility, Université de Paris - Structure Fédérative de Recherche - Necker, INSERM US24/CNRS, UAR3633, Paris, France
| | - Chiara Guerrera
- Proteomic Core Facility, Université de Paris - Structure Fédérative de Recherche - Necker, INSERM US24/CNRS, UAR3633, Paris, France
| | - Romane Ducloux
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 5 and Ferostem group, F-75015, Paris, France
- Ferostem group, F-75015, Paris, France
| | - Sylvie Souquere
- CNRS, UMR9196, Villejuif, France - Gustave Roussy Cancer Campus, Villejuif, France
| | - Gérard Pierron
- CNRS, UMR9196, Villejuif, France - Gustave Roussy Cancer Campus, Villejuif, France
| | - Ivan Nemazanyy
- Metabolic Core Facility, Université de Paris - Structure Fédérative de Recherche - Necker, INSERM US24/CNRS, UAR3633, Paris, France
| | - Mairead Kelly
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 5 and Ferostem group, F-75015, Paris, France
| | - Elise Dalmas
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 5 and Ferostem group, F-75015, Paris, France
| | - Yunhua Chang
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 5 and Ferostem group, F-75015, Paris, France
| | - Vincent Goffin
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 5 and Ferostem group, F-75015, Paris, France
| | - Maryam Mehrpour
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 5 and Ferostem group, F-75015, Paris, France
- Ferostem group, F-75015, Paris, France
| | - Ahmed Hamaï
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Team 5 and Ferostem group, F-75015, Paris, France.
- Ferostem group, F-75015, Paris, France.
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50
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Moustakli E, Zikopoulos A, Skentou C, Bouba I, Tsirka G, Stavros S, Vrachnis D, Vrachnis N, Potiris A, Georgiou I, Zachariou A. Sperm Mitochondrial Content and Mitochondrial DNA to Nuclear DNA Ratio Are Associated with Body Mass Index and Progressive Motility. Biomedicines 2023; 11:3014. [PMID: 38002013 PMCID: PMC10669626 DOI: 10.3390/biomedicines11113014] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND Mitochondrial dysfunction is a risk factor in the pathogenesis of metabolic disorders. According to the energy requirements, oxidative phosphorylation and the electron transport chain work together to produce ATP in sufficient quantities in the mitochondria of eukaryotic cells. Abnormal mitochondrial activity causes fat accumulation and insulin resistance as cells require a balance between the production of ATP by oxidative phosphorylation (OXPHOS) in the mitochondria and the dissipation of the proton gradient to reduce damage from reactive oxygen species (ROS). This study aims to explore the relationship between the mitochondrial content of sperm and the ratio of mitochondrial DNA to nuclear DNA in relation to body mass index (BMI) and how it may affect the progressive motility of sperm cell. Understanding the relationships between these important variables will help us better understand the possible mechanisms that could connect sperm motility and quality to BMI, as well as further our understanding of male fertility and reproductive health. METHODS Data were collected from 100 men who underwent IVF/ICSI at the University Hospital of Ioannina's IVF Unit in the Obstetrics and Gynecology Department. The body mass index (BMI) of the males tested was used to classify them as normal weight; overweight; and obese. Evaluations included sperm morphology; sperm count; sperm motility; and participant history. RESULTS In the group of men with normal BMI, both BMI and progressive motility displayed a statistically significant association (p < 0.05) with mitochondrial DNA content, relative mitochondrial DNA copy number, and the mtDNA/nDNA ratio. Similar to this, there was a positive association between BMI and motility in the groups of men who were overweight and obese, as well as between the expression of mitochondrial DNA and the mtDNA/nDNA ratio, with statistically significant differences (p < 0.05). There was not a statistically significant difference observed in the association between the relative mtDNA copy number and BMI or motility for the overweight group. Finally, the relative mtDNA copy number in the obese group was only associated with motility (p = 0.034) and not with BMI (p = 0.24). CONCLUSIONS We found that in all three groups, BMI and progressive motility exhibited comparable relationships with mitochondrial DNA expression and the mtDNA/nDNA ratio. However, only in the normal group and in the obese group, the relative mitochondrial DNA copy number showed a positive association with BMI and progressive motility.
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Affiliation(s)
- Efthalia Moustakli
- Laboratory of Medical Genetics, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece; (I.B.); (G.T.); (I.G.)
| | | | - Charikleia Skentou
- Department of Obstetrics and Gynecology, Medical School of Ioannina, University General Hospital, 45110 Ioannina, Greece;
| | - Ioanna Bouba
- Laboratory of Medical Genetics, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece; (I.B.); (G.T.); (I.G.)
| | - Georgia Tsirka
- Laboratory of Medical Genetics, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece; (I.B.); (G.T.); (I.G.)
| | - Sofoklis Stavros
- Third Department of Obstetrics and Gynecology, Attikon Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece; (S.S.); (N.V.); (A.P.)
| | - Dionysios Vrachnis
- Department of Clinical Therapeutics, Alexandra Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece;
| | - Nikolaos Vrachnis
- Third Department of Obstetrics and Gynecology, Attikon Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece; (S.S.); (N.V.); (A.P.)
- Vascular Biology, Molecular, and Clinical Sciences Research Institute, St George’s University of London, London SW17 0RE, UK
| | - Anastasios Potiris
- Third Department of Obstetrics and Gynecology, Attikon Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece; (S.S.); (N.V.); (A.P.)
| | - Ioannis Georgiou
- Laboratory of Medical Genetics, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece; (I.B.); (G.T.); (I.G.)
| | - Athanasios Zachariou
- Department of Urology, School of Medicine, Ioannina University, 45110 Ioannina, Greece;
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