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Negm AE, Abo-Raya MH, Gabr AM, Baloza SH, El-Nokrashy A, Prince A, Arana D, Wang Y, Abdelazeem S, Albadrani GM, Al-Ghadi MQ, Abdeen A, Shukry M, El-Sayed Khalafallah MM. Effects of phytase enzyme supplementation on growth performance, intestinal morphology and metabolism in Nile tilapia (Oreochromis niloticus). J Anim Physiol Anim Nutr (Berl) 2024; 108:891-908. [PMID: 38356017 DOI: 10.1111/jpn.13939] [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: 12/11/2023] [Revised: 01/25/2024] [Accepted: 01/30/2024] [Indexed: 02/16/2024]
Abstract
Phytase is crucial in enhancing the bioavailability and release of phosphorus and other nutrients bound to phytic acid, making them more bioavailable for animal absorption. This study was carried out to inspect the effect of supplementing low phosphorus (P) diet with di-calcium phosphate (DCP) and liquid phytase enzyme (LP), which contains 1500 FTU/kg, on growth performance, intestinal morphometry, proximate body chemical composition, blood profile, immunity status, liver mitochondrial enzyme activities, the expression response and economic returns of Nile tilapia (Oreochromis niloticus). Three triplicate groups of fish (initial weight 5.405 ± 0.045 g, N = 90) were fed on three different diets for 90 days. The first was a control diet with zero DCP; the second was a control diet supplemented with 0.71% DCP; the third was a control diet supplemented with 0.03% LP. The groups were designated as CG, DCP and LP, respectively. Results showed that LP induced considerable improvements (p < 0.05) in FBW, body weight gain, weight gain rate, specific growth rate, HIS, viscero-somatic index, spleen-somatic index, feed conversion ratio, blood parameters and the histomorphometry assessment of intestinal villi absorptive capacity, compared with the other groups. Also, whole-body protein and lipid contents pointedly (p < 0.05) increased by LP, compared with the DCP group. A positive response (p < 0.05) to the phytase enzyme was noted in complexes I, III and IV of the mitochondrial liver complex enzyme activity. Likewise, the relative gene expression levels of (GHr-1, IGF-1, FAS and LPL) were notably (p < 0.05) upregulated by phytase enzyme, associated with DCP and control groups. Further, phytase recorded the highest total return and profit percentage. It can be concluded that Nile tilapia benefits from using phytase enzyme 1500 FTU/kg at 0.03% without adding DCP in terms of good performance and profits.
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Affiliation(s)
- Ahmed E Negm
- Department of Aquaculture, Faculty of Aquatic and Fisheries Sciences, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Mohamed H Abo-Raya
- Department of Aquaculture, Faculty of Aquatic and Fisheries Sciences, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Asmaa M Gabr
- Department of Aquaculture, Faculty of Aquatic and Fisheries Sciences, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Samar H Baloza
- Genetic and Genetic Engineering, Animal Wealth Development Department, Faculty of Veterinary Medicine, Benha University, Toukh, Egypt
| | - Asmaa El-Nokrashy
- Department of Aquaculture, Faculty of Aquatic and Fisheries Sciences, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Abdelbary Prince
- Department of Biochemistry, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | | | - Youji Wang
- International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, Shanghai, China
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China
| | - Shimaa Abdelazeem
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt
| | - Ghadeer M Albadrani
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Muath Q Al-Ghadi
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed Abdeen
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Benha University, Toukh, Egypt
| | - Mustafa Shukry
- Department of Physiology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Malik M El-Sayed Khalafallah
- Department of Aquaculture, Faculty of Aquatic and Fisheries Sciences, Kafrelsheikh University, Kafrelsheikh, Egypt
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2
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Degitz C, Reime S, Baumbach CM, Rauschner M, Thews O. Modulation of mitochondrial function by extracellular acidosis in tumor cells and normal fibroblasts: Role of signaling pathways. Neoplasia 2024; 52:100999. [PMID: 38631214 PMCID: PMC11036092 DOI: 10.1016/j.neo.2024.100999] [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: 01/17/2024] [Accepted: 04/10/2024] [Indexed: 04/19/2024]
Abstract
In many tumors pronounced extracellular acidosis resulting from glycolytic metabolism is found. Since several environmental stress factors affect the mitochondrial activity the aim of the study was to analyze the impact of acidosis on cellular oxygen consumption and which signaling pathways may be involved in the regulation. In two tumor cell lines and normal fibroblasts cellular oxygen consumption rate (OCR) and mitochondrial function were measured after 3 h at pH 6.6. Besides the activation of ERK1/2, p38 and PI3K signaling in the cytosolic and mitochondrial compartment, the mitochondrial structure and proteins related to mitochondria fission were analyzed. The acidic extracellular environment increased OCR in tumor cells but not in fibroblasts. In parallel, the mitochondrial membrane potential increased at low pH. In both tumor lines (but not in fibroblasts), the phosphorylation of ERK1/2 and PI3K/Akt was significantly increased, and both cascades were involved in OCR modulation. The activation of signaling pathways was located predominantly in the mitochondrial compartment of the cells. At low pH, the mitochondrial structure in tumor cells showed structural changes related to elongation whereas mitochondria fragmentation was reduced indicating mitochondria fusion. However, these morphological changes were not related to ERK1/2 or PI3K signaling. Acidic stress seems to induce an increased oxygen consumption, which might further aggravate tumor hypoxia. Low pH also induces mitochondria fusion that is not mediated by ERK1/2 or PI3K signaling. The mechanism by which these signaling cascades modulate the respiratory activity of tumor cells needs further investigation.
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Affiliation(s)
- Carmen Degitz
- Julius Bernstein Institute of Physiology, University of Halle-Wittenberg, Magdeburger Str. 6 (Saale), Halle, 06112, Germany
| | - Sarah Reime
- Julius Bernstein Institute of Physiology, University of Halle-Wittenberg, Magdeburger Str. 6 (Saale), Halle, 06112, Germany
| | - Christina-Marie Baumbach
- Julius Bernstein Institute of Physiology, University of Halle-Wittenberg, Magdeburger Str. 6 (Saale), Halle, 06112, Germany
| | - Mandy Rauschner
- Julius Bernstein Institute of Physiology, University of Halle-Wittenberg, Magdeburger Str. 6 (Saale), Halle, 06112, Germany
| | - Oliver Thews
- Julius Bernstein Institute of Physiology, University of Halle-Wittenberg, Magdeburger Str. 6 (Saale), Halle, 06112, Germany.
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Waisberg E, Ong J, Masalkhi M, Mao XW, Beheshti A, Lee AG. Mitochondrial dysfunction in Spaceflight Associated Neuro-Ocular Syndrome (SANS): a molecular hypothesis in pathogenesis. Eye (Lond) 2024; 38:1409-1411. [PMID: 38326485 PMCID: PMC11126720 DOI: 10.1038/s41433-024-02951-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 01/17/2024] [Accepted: 01/23/2024] [Indexed: 02/09/2024] Open
Affiliation(s)
- Ethan Waisberg
- Department of Ophthalmology, University of Cambridge, Cambridge, UK.
| | - Joshua Ong
- Department of Ophthalmology and Visual Sciences, University of Michigan Kellogg Eye Center, Ann Arbor, MI, USA
| | - Mouayad Masalkhi
- School of Medicine, University College Dublin, Belfield, Dublin, Ireland
| | - Xiao W Mao
- Division of Biomedical Engineering Sciences, Department of Basic Sciences, Loma Linda University Health, Loma Linda, CA, USA
| | - Afshin Beheshti
- Blue Marble Space Institute of Science, Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Andrew G Lee
- Center for Space Medicine, Baylor College of Medicine, Houston, TX, USA
- Department of Ophthalmology, Blanton Eye Institute, Houston Methodist Hospital, Houston, TX, USA
- The Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, USA
- Departments of Ophthalmology, Neurology, and Neurosurgery, Weill Cornell Medicine, New York, NY, USA
- Department of Ophthalmology, University of Texas Medical Branch, Galveston, TX, USA
- University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Texas A&M College of Medicine, Texas, TX, USA
- Department of Ophthalmology, The University of Iowa Hospitals and Clinics, Iowa City, IA, USA
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Morse PT, Arroum T, Wan J, Pham L, Vaishnav A, Bell J, Pavelich L, Malek MH, Sanderson TH, Edwards BFP, Hüttemann M. Phosphorylations and Acetylations of Cytochrome c Control Mitochondrial Respiration, Mitochondrial Membrane Potential, Energy, ROS, and Apoptosis. Cells 2024; 13:493. [PMID: 38534337 DOI: 10.3390/cells13060493] [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: 01/27/2024] [Revised: 03/07/2024] [Accepted: 03/09/2024] [Indexed: 03/28/2024] Open
Abstract
Cytochrome c (Cytc) has both life-sustaining and cellular death-related functions, depending on subcellular localization. Within mitochondria, Cytc acts as a single electron carrier as part of the electron transport chain (ETC). When released into the cytosol after cellular insult, Cytc triggers the assembly of the apoptosome, committing the cell to intrinsic apoptosis. Due to these dual natures, Cytc requires strong regulation by the cell, including post-translational modifications, such as phosphorylation and acetylation. Six phosphorylation sites and three acetylation sites have been detected on Cytc in vivo. Phosphorylations at T28, S47, Y48, T49, T58, and Y97 tend to be present under basal conditions in a tissue-specific manner. In contrast, the acetylations at K8, K39, and K53 tend to be present in specific pathophysiological conditions. All of the phosphorylation sites and two of the three acetylation sites partially inhibit respiration, which we propose serves to maintain an optimal, intermediate mitochondrial membrane potential (ΔΨm) to minimize reactive oxygen species (ROS) production. Cytc phosphorylations are lost during ischemia, which drives ETC hyperactivity and ΔΨm hyperpolarization, resulting in exponential ROS production thus causing reperfusion injury following ischemia. One of the acetylation sites, K39, shows a unique behavior in that it is gained during ischemia, stimulating respiration while blocking apoptosis, demonstrating that skeletal muscle, which is particularly resilient to ischemia-reperfusion injury compared to other organs, possesses a different metabolic strategy to handle ischemic stress. The regulation of Cytc by these post-translational modifications underscores the importance of Cytc for the ETC, ΔΨm, ROS production, apoptosis, and the cell as a whole.
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Affiliation(s)
- Paul T Morse
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
| | - Tasnim Arroum
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
| | - Junmei Wan
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
| | - Lucynda Pham
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
| | - Asmita Vaishnav
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University, Detroit, MI 48201, USA
| | - Jamie Bell
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
- Division of Pediatric Critical Care, Children's Hospital of Michigan, Central Michigan University, Detroit, MI 48201, USA
| | - Lauren Pavelich
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University, Detroit, MI 48201, USA
| | - Moh H Malek
- Department of Health Care Sciences, Eugene Applebaum College of Pharmacy & Health Sciences, Wayne State University, Detroit, MI 48201, USA
| | - Thomas H Sanderson
- Department of Emergency Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Brian F P Edwards
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University, Detroit, MI 48201, USA
| | - Maik Hüttemann
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University, Detroit, MI 48201, USA
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Tripathi K, Ben-Shachar D. Mitochondria in the Central Nervous System in Health and Disease: The Puzzle of the Therapeutic Potential of Mitochondrial Transplantation. Cells 2024; 13:410. [PMID: 38474374 DOI: 10.3390/cells13050410] [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: 01/31/2024] [Revised: 02/21/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Mitochondria, the energy suppliers of the cells, play a central role in a variety of cellular processes essential for survival or leading to cell death. Consequently, mitochondrial dysfunction is implicated in numerous general and CNS disorders. The clinical manifestations of mitochondrial dysfunction include metabolic disorders, dysfunction of the immune system, tumorigenesis, and neuronal and behavioral abnormalities. In this review, we focus on the mitochondrial role in the CNS, which has unique characteristics and is therefore highly dependent on the mitochondria. First, we review the role of mitochondria in neuronal development, synaptogenesis, plasticity, and behavior as well as their adaptation to the intricate connections between the different cell types in the brain. Then, we review the sparse knowledge of the mechanisms of exogenous mitochondrial uptake and describe attempts to determine their half-life and transplantation long-term effects on neuronal sprouting, cellular proteome, and behavior. We further discuss the potential of mitochondrial transplantation to serve as a tool to study the causal link between mitochondria and neuronal activity and behavior. Next, we describe mitochondrial transplantation's therapeutic potential in various CNS disorders. Finally, we discuss the basic and reverse-translation challenges of this approach that currently hinder the clinical use of mitochondrial transplantation.
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Affiliation(s)
- Kuldeep Tripathi
- Laboratory of Psychobiology, Department of Neuroscience, The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, P.O. Box 9649, Haifa 31096, Israel
| | - Dorit Ben-Shachar
- Laboratory of Psychobiology, Department of Neuroscience, The Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, P.O. Box 9649, Haifa 31096, Israel
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6
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Schiuma G, Lara D, Clement J, Narducci M, Rizzo R. NADH: the redox sensor in aging-related disorders. Antioxid Redox Signal 2024. [PMID: 38366731 DOI: 10.1089/ars.2023.0375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
SIGNIFICANCE NADH represents the reduced form of NAD+, and together they constitute the two forms of the Nicotinamide adenine dinucleotide whose balance is named as the NAD+/NADH ratio. NAD+/NADH ratio is mainly involved in redox reactions since both the molecules are responsible for carrying electrons to maintain redox homeostasis. NADH acts as a reducing agent and one of the most known processes exploiting NADH function is energy metabolism. The two main pathways generating energy and involving NADH are Glycolysis and Oxidative phosphorylation, occurring in cell cytosol and in the mitochondrial matrix, respectively. RECENT ADVANCES Although NADH is primarily produced through the reduction of NAD+ and consumed by its own oxidation, several are the biosynthetic and consumption pathways, reflecting the NADH role in multiple cellular processes. CRITICAL ISSUES This review gathers all the main current data referring to NADH in correlation with metabolic and cellular pathways, such as its coenzyme activity, effect in cell death and on modulating redox and calcium homeostasis. Data were selected following eligibility criteria accordingly to the reviewed topic. A set of electronic databases (Medline/PubMed, Scopus, Web of Sciences (WOS), Cochrane Library) have been used for a systematic search until January 2024 using MeSH keywords/terms (i.e., NADH, NAD+/NADH and NADH/NAD+ ratio, redox homeostasis, energy metabolism, aging, aging-related disorders, therapies). FUTURE DIRECTION Gene expression control, as well as to the potential impact on neurodegenerative, cardiac disorders and infections suggest NADH application in clinical settings.
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Affiliation(s)
| | - Djidjell Lara
- University of Ferrara, 9299, Ferrara, FE, Italy
- BetterHumans, Gainesville, Florida, United States;
| | - James Clement
- Betterhumans Inc., Gainesville, Florida, United States
- University of Ferrara, 9299, Ferrara, FE, Italy;
| | - Marco Narducci
- University of Ferrara, 9299, Ferrara, FE, Italy
- BetterHumans, Gainesville, Florida, United States
- Temple University Japan Campus, 83908, Minato-ku, Tokyo, Japan;
| | - Roberta Rizzo
- University of Ferrara, 9299, Via Luigi Borsari 46, Ferrara, Ferrara, FE, Italy, 44121;
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7
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Hansen FM, Kremer LS, Karayel O, Bludau I, Larsson NG, Kühl I, Mann M. Mitochondrial phosphoproteomes are functionally specialized across tissues. Life Sci Alliance 2024; 7:e202302147. [PMID: 37984987 PMCID: PMC10662294 DOI: 10.26508/lsa.202302147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 11/03/2023] [Accepted: 11/07/2023] [Indexed: 11/22/2023] Open
Abstract
Mitochondria are essential organelles whose dysfunction causes human pathologies that often manifest in a tissue-specific manner. Accordingly, mitochondrial fitness depends on versatile proteomes specialized to meet diverse tissue-specific requirements. Increasing evidence suggests that phosphorylation may play an important role in regulating tissue-specific mitochondrial functions and pathophysiology. Building on recent advances in mass spectrometry (MS)-based proteomics, we here quantitatively profile mitochondrial tissue proteomes along with their matching phosphoproteomes. We isolated mitochondria from mouse heart, skeletal muscle, brown adipose tissue, kidney, liver, brain, and spleen by differential centrifugation followed by separation on Percoll gradients and performed high-resolution MS analysis of the proteomes and phosphoproteomes. This in-depth map substantially quantifies known and predicted mitochondrial proteins and provides a resource of core and tissue-specific mitochondrial proteins (mitophos.de). Predicting kinase substrate associations for different mitochondrial compartments indicates tissue-specific regulation at the phosphoproteome level. Illustrating the functional value of our resource, we reproduce mitochondrial phosphorylation events on dynamin-related protein 1 responsible for its mitochondrial recruitment and fission initiation and describe phosphorylation clusters on MIGA2 linked to mitochondrial fusion.
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Affiliation(s)
- Fynn M Hansen
- https://ror.org/04py35477 Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Laura S Kremer
- https://ror.org/056d84691 Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Ozge Karayel
- https://ror.org/04py35477 Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Isabell Bludau
- https://ror.org/04py35477 Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Nils-Göran Larsson
- https://ror.org/056d84691 Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Inge Kühl
- Department of Cell Biology, Institute of Integrative Biology of the Cell, UMR9198, CEA, CNRS, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Matthias Mann
- https://ror.org/04py35477 Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Martinsried, Germany
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Wider JM, Gruley E, Morse PT, Wan J, Lee I, Anzell AR, Fogo GM, Mathieu J, Hish G, O'Neil B, Neumar RW, Przyklenk K, Hüttemann M, Sanderson TH. Modulation of mitochondrial function with near-infrared light reduces brain injury in a translational model of cardiac arrest. Crit Care 2023; 27:491. [PMID: 38098060 PMCID: PMC10720207 DOI: 10.1186/s13054-023-04745-7] [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: 08/23/2023] [Accepted: 11/18/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Brain injury is a leading cause of morbidity and mortality in patients resuscitated from cardiac arrest. Mitochondrial dysfunction contributes to brain injury following cardiac arrest; therefore, therapies that limit mitochondrial dysfunction have the potential to improve neurological outcomes. Generation of reactive oxygen species (ROS) during ischemia-reperfusion injury in the brain is a critical component of mitochondrial injury and is dependent on hyperactivation of mitochondria following resuscitation. Our previous studies have provided evidence that modulating mitochondrial function with specific near-infrared light (NIR) wavelengths can reduce post-ischemic mitochondrial hyperactivity, thereby reducing brain injury during reperfusion in multiple small animal models. METHODS Isolated porcine brain cytochrome c oxidase (COX) was used to investigate the mechanism of NIR-induced mitochondrial modulation. Cultured primary neurons from mice expressing mitoQC were utilized to explore the mitochondrial mechanisms related to protection with NIR following ischemia-reperfusion. Anesthetized pigs were used to optimize the delivery of NIR to the brain by measuring the penetration depth of NIR to deep brain structures and tissue heating. Finally, a model of out-of-hospital cardiac arrest with CPR in adult pigs was used to evaluate the translational potential of NIR as a noninvasive therapeutic approach to protect the brain after resuscitation. RESULTS Molecular evaluation of enzyme activity during NIR irradiation demonstrated COX function was reduced in an intensity-dependent manner with a threshold of enzyme inhibition leading to a moderate reduction in activity without complete inhibition. Mechanistic interrogation in neurons demonstrated that mitochondrial swelling and upregulation of mitophagy were reduced with NIR treatment. NIR therapy in large animals is feasible, as NIR penetrates deep into the brain without substantial tissue heating. In a translational porcine model of CA/CPR, transcranial NIR treatment for two hours at the onset of return of spontaneous circulation (ROSC) demonstrated significantly improved neurological deficit scores and reduced histologic evidence of brain injury after resuscitation from cardiac arrest. CONCLUSIONS NIR modulates mitochondrial function which improves mitochondrial dynamics and quality control following ischemia/reperfusion. Noninvasive modulation of mitochondria, achieved by transcranial treatment of the brain with NIR, mitigates post-cardiac arrest brain injury and improves neurologic functional outcomes.
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Affiliation(s)
- Joseph M Wider
- Department of Emergency Medicine, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI, 48109-5014, USA
- Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, B10-103A, NCRC 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
- Department of Molecular and Integrative Physiology, University of Michigan, 7744 MS II, 1137 E. Catherine St., Ann Arbor, MI, 48109-5622, USA
| | - Erin Gruley
- Department of Emergency Medicine, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI, 48109-5014, USA
- Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, B10-103A, NCRC 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
| | - Paul T Morse
- Center for Molecular Medicine and Genetics, Wayne State University, 3214 Scott Hall, 540 E. Canfield Ave., Detroit, MI, 48201, USA
| | - Junmei Wan
- Center for Molecular Medicine and Genetics, Wayne State University, 3214 Scott Hall, 540 E. Canfield Ave., Detroit, MI, 48201, USA
| | - Icksoo Lee
- College of Medicine, Dankook University, Cheonan-Si, Chungcheongnam-Do, 31116, Republic of Korea
| | - Anthony R Anzell
- Department of Human Genetics, University of Pittsburgh, 130 De Soto Street, Pittsburgh, PA, 15261, USA
| | - Garrett M Fogo
- Department of Emergency Medicine, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI, 48109-5014, USA
- Neuroscience Graduate Program, University of Michigan, 204 Washtenaw Ave, Ann Arbor, MI, 48109, USA
| | - Jennifer Mathieu
- Department of Emergency Medicine, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI, 48109-5014, USA
- Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, B10-103A, NCRC 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
- Department of Molecular and Integrative Physiology, University of Michigan, 7744 MS II, 1137 E. Catherine St., Ann Arbor, MI, 48109-5622, USA
| | - Gerald Hish
- Unit for Laboratory Animal Medicine, University of Michigan, North Campus Research Complex, 2800 Plymouth Rd, Ann Arbor, MI, 48109, USA
| | - Brian O'Neil
- Department of Emergency Medicine, Wayne State University, 4201 St. Antoine St., University Health Center - 6G, Detroit, MI, 48201, USA
| | - Robert W Neumar
- Department of Emergency Medicine, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI, 48109-5014, USA
- Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, B10-103A, NCRC 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
| | - Karin Przyklenk
- Clinical Research Institute, Children's Hospital of Michigan, 3901 Beaubien Blvd, Detroit, MI, USA
- Department of Pediatrics, Central Michigan University, 1280 S. East Campus Drive, Mount Pleasant, MI, 48859, USA
| | - Maik Hüttemann
- Center for Molecular Medicine and Genetics, Wayne State University, 3214 Scott Hall, 540 E. Canfield Ave., Detroit, MI, 48201, USA
| | - Thomas H Sanderson
- Department of Emergency Medicine, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI, 48109-5014, USA.
- Max Harry Weil Institute for Critical Care Research and Innovation, University of Michigan, B10-103A, NCRC 2800 Plymouth Road, Ann Arbor, MI, 48109, USA.
- Department of Molecular and Integrative Physiology, University of Michigan, 7744 MS II, 1137 E. Catherine St., Ann Arbor, MI, 48109-5622, USA.
- Neuroscience Graduate Program, University of Michigan, 204 Washtenaw Ave, Ann Arbor, MI, 48109, USA.
- Department of Emergency Medicine, Wayne State University, 4201 St. Antoine St., University Health Center - 6G, Detroit, MI, 48201, USA.
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9
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Wei F, Nian Q, Zhao M, Wen Y, Yang Y, Wang J, He Z, Chen X, Yin X, Wang J, Ma X, Chen Y, Feng P, Zeng J. Natural products and mitochondrial allies in colorectal cancer therapy. Biomed Pharmacother 2023; 167:115473. [PMID: 37713992 DOI: 10.1016/j.biopha.2023.115473] [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: 06/28/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/17/2023] Open
Abstract
Colorectal cancer (CRC) is a globally prevalent malignancy with a high potential for metastasis. Existing cancer treatments have limitations, including drug resistance and adverse effects. Researchers are striving to develop effective therapies to address these challenges. Impressively, contemporary research has discovered that many natural products derived from foods, plants, insects, and marine invertebrates can suppress the progression, metastasis, and invasion of CRC. In this review, we conducted a comprehensive search of the CNKI, PubMed, Embase, and Web of Science databases from inception to April 2023 to evaluate the efficacy of natural products targeting mitochondria to fight against CRC. Mitochondria are intracellular energy factories involved in cell differentiation, signal transduction, cell cycle regulation, apoptosis, and tumorigenesis. The identified natural products have been classified and summarized based on their mechanisms of action. These findings indicate that natural products can induce apoptosis in colorectal cancer cells by inhibiting the mitochondrial respiratory chain, ROS elevation, disruption of mitochondrial membrane potential, the release of pro-apoptotic factors, modulation of the Bcl-2 protein family to facilitate cytochrome c release, induction of apoptotic vesicle activity by activating the caspase protein family, and selective targeting of mitochondrial division. Furthermore, diverse apoptotic signaling pathways targeting mitochondria, such as the MAPK, p53, STAT3, JNK and AKT pathway, have been triggered by natural products. Natural products such as diosgenin, allopurinol, and clausenidin have demonstrated low toxicity, high efficacy, and multi-targeted properties. Mitochondria-targeting natural products have great potential for overcoming the challenges of CRC therapy.
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Affiliation(s)
- Feng Wei
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China; School of Clinical Medicine, Chengdu University of Chinese Medicine, Chengdu 610075, China
| | - Qing Nian
- Department of Blood Transfusion, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Maoyuan Zhao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yueqiang Wen
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yi Yang
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China
| | - Jundong Wang
- Department of Gastroenterology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China
| | - Zhelin He
- Endoscopy center, Guang'an Hospital of Traditional Chinese Medicine, Guang'an 638000, China
| | - Xiaoyan Chen
- Endoscopy center, Guang'an Hospital of Traditional Chinese Medicine, Guang'an 638000, China
| | - Xiang Yin
- Endoscopy center, Guang'an Hospital of Traditional Chinese Medicine, Guang'an 638000, China
| | - Jian Wang
- Endoscopy center, Guang'an Hospital of Traditional Chinese Medicine, Guang'an 638000, China
| | - Xiao Ma
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Yu Chen
- Department of Oncology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China.
| | - Peimin Feng
- Department of Gastroenterology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China.
| | - Jinhao Zeng
- Department of Gastroenterology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China; TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China.
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10
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Bhullar SK, Dhalla NS. Status of Mitochondrial Oxidative Phosphorylation during the Development of Heart Failure. Antioxidants (Basel) 2023; 12:1941. [PMID: 38001794 PMCID: PMC10669359 DOI: 10.3390/antiox12111941] [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: 09/26/2023] [Revised: 10/23/2023] [Accepted: 10/27/2023] [Indexed: 11/26/2023] Open
Abstract
Mitochondria are specialized organelles, which serve as the "Power House" to generate energy for maintaining heart function. These organelles contain various enzymes for the oxidation of different substrates as well as the electron transport chain in the form of Complexes I to V for producing ATP through the process of oxidative phosphorylation (OXPHOS). Several studies have shown depressed OXPHOS activity due to defects in one or more components of the substrate oxidation and electron transport systems which leads to the depletion of myocardial high-energy phosphates (both creatine phosphate and ATP). Such changes in the mitochondria appear to be due to the development of oxidative stress, inflammation, and Ca2+-handling abnormalities in the failing heart. Although some investigations have failed to detect any changes in the OXPHOS activity in the failing heart, such results appear to be due to a loss of Ca2+ during the mitochondrial isolation procedure. There is ample evidence to suggest that mitochondrial Ca2+-overload occurs, which is associated with impaired mitochondrial OXPHOS activity in the failing heart. The depression in mitochondrial OXPHOS activity may also be due to the increased level of reactive oxygen species, which are formed as a consequence of defects in the electron transport complexes in the failing heart. Various metabolic interventions which promote the generation of ATP have been reported to be beneficial for the therapy of heart failure. Accordingly, it is suggested that depression in mitochondrial OXPHOS activity plays an important role in the development of heart failure.
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Affiliation(s)
| | - Naranjan S. Dhalla
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Department of Physiology and Pathophysiology, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R2H 2A6, Canada;
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11
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Wei Q, Wang X, Dong Y, Shang Y, Sun G, Wu X, Zhao C, Sha W, Yang G, Zhang H. Analysis of the Complete Mitochondrial Genome of Pteronura brasiliensis and Lontra canadensis. Animals (Basel) 2023; 13:3165. [PMID: 37893890 PMCID: PMC10603698 DOI: 10.3390/ani13203165] [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: 07/21/2023] [Revised: 09/25/2023] [Accepted: 10/08/2023] [Indexed: 10/29/2023] Open
Abstract
P. brasiliensis and L. canadensis are two otter species, which successfully occupied semi-aquatic habitats and diverged from other Mustelidae. Herein, the full-length mitochondrial genome sequences were constructed for these two otter species for the first time. Comparative mitochondrial genome, selection pressure, and phylogenetic independent contrasts (PICs) analyses were conducted to determine the structure and evolutionary characteristics of their mitochondrial genomes. Phylogenetic analyses were also conducted to confirm these two otter species' phylogenetic position. The results demonstrated that the mitochondrial genome structure of P. brasiliensis and L. canadensis were consistent across Mustelidae. However, selection pressure analyses demonstrated that the evolutionary rates of mitochondrial genome protein-coding genes (PCGs) ND1, ND4, and ND4L were higher in otters than in terrestrial Mustelidae, whereas the evolutionary rates of ND2, ND6, and COX1 were lower in otters. Additionally, PIC analysis demonstrated that the evolutionary rates of ND2, ND4, and ND4L markedly correlated with a niche type. Phylogenetic analysis showed that P. brasiliensis is situated at the base of the evolutionary tree of otters, and then L. canadensis diverged from it. This study suggests a divergent evolutionary pattern of Mustelidae mitochondrial genome PCGs, prompting the otters' adaptation to semi-aquatic habitats.
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Affiliation(s)
- Qinguo Wei
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China; (Q.W.); (G.Y.)
- College of Life Sciences, Qufu Normal University, Qufu 273165, China; (X.W.); (Y.D.); (Y.S.); (G.S.); (X.W.); (C.Z.); (W.S.)
| | - Xibao Wang
- College of Life Sciences, Qufu Normal University, Qufu 273165, China; (X.W.); (Y.D.); (Y.S.); (G.S.); (X.W.); (C.Z.); (W.S.)
| | - Yuehuan Dong
- College of Life Sciences, Qufu Normal University, Qufu 273165, China; (X.W.); (Y.D.); (Y.S.); (G.S.); (X.W.); (C.Z.); (W.S.)
| | - Yongquan Shang
- College of Life Sciences, Qufu Normal University, Qufu 273165, China; (X.W.); (Y.D.); (Y.S.); (G.S.); (X.W.); (C.Z.); (W.S.)
| | - Guolei Sun
- College of Life Sciences, Qufu Normal University, Qufu 273165, China; (X.W.); (Y.D.); (Y.S.); (G.S.); (X.W.); (C.Z.); (W.S.)
| | - Xiaoyang Wu
- College of Life Sciences, Qufu Normal University, Qufu 273165, China; (X.W.); (Y.D.); (Y.S.); (G.S.); (X.W.); (C.Z.); (W.S.)
| | - Chao Zhao
- College of Life Sciences, Qufu Normal University, Qufu 273165, China; (X.W.); (Y.D.); (Y.S.); (G.S.); (X.W.); (C.Z.); (W.S.)
| | - Weilai Sha
- College of Life Sciences, Qufu Normal University, Qufu 273165, China; (X.W.); (Y.D.); (Y.S.); (G.S.); (X.W.); (C.Z.); (W.S.)
| | - Guang Yang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China; (Q.W.); (G.Y.)
| | - Honghai Zhang
- College of Life Sciences, Qufu Normal University, Qufu 273165, China; (X.W.); (Y.D.); (Y.S.); (G.S.); (X.W.); (C.Z.); (W.S.)
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12
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Beekhof R, Bertotti A, Böttger F, Vurchio V, Cottino F, Zanella ER, Migliardi G, Viviani M, Grassi E, Lupo B, Henneman AA, Knol JC, Pham TV, de Goeij-de Haas R, Piersma SR, Labots M, Verheul HMW, Trusolino L, Jimenez CR. Phosphoproteomics of patient-derived xenografts identifies targets and markers associated with sensitivity and resistance to EGFR blockade in colorectal cancer. Sci Transl Med 2023; 15:eabm3687. [PMID: 37585503 DOI: 10.1126/scitranslmed.abm3687] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 07/25/2023] [Indexed: 08/18/2023]
Abstract
Epidermal growth factor receptor (EGFR) is a well-exploited therapeutic target in metastatic colorectal cancer (mCRC). Unfortunately, not all patients benefit from current EGFR inhibitors. Mass spectrometry-based proteomics and phosphoproteomics were performed on 30 genomically and pharmacologically characterized mCRC patient-derived xenografts (PDXs) to investigate the molecular basis of response to EGFR blockade and identify alternative drug targets to overcome resistance. Both the tyrosine and global phosphoproteome as well as the proteome harbored distinctive response signatures. We found that increased pathway activity related to mitogen-activated protein kinase (MAPK) inhibition and abundant tyrosine phosphorylation of cell junction proteins, such as CXADR and CLDN1/3, in sensitive tumors, whereas epithelial-mesenchymal transition and increased MAPK and AKT signaling were more prevalent in resistant tumors. Furthermore, the ranking of kinase activities in single samples confirmed the driver activity of ERBB2, EGFR, and MET in cetuximab-resistant tumors. This analysis also revealed high kinase activity of several members of the Src and ephrin kinase family in 2 CRC PDX models with genomically unexplained resistance. Inhibition of these hyperactive kinases, alone or in combination with cetuximab, resulted in growth inhibition of ex vivo PDX-derived organoids and in vivo PDXs. Together, these findings highlight the potential value of phosphoproteomics to improve our understanding of anti-EGFR treatment and response prediction in mCRC and bring to the forefront alternative drug targets in cetuximab-resistant tumors.
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Affiliation(s)
- Robin Beekhof
- Amsterdam UMC, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
- Amsterdam UMC, Vrije Universiteit Amsterdam, OncoProteomics Laboratory, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - Andrea Bertotti
- Candiolo Cancer Institute - FPO IRCCS, Candiolo, 10060 Torino, Italy
- Department of Oncology, University of Torino, Candiolo, 10060 Torino, Italy
| | - Franziska Böttger
- Amsterdam UMC, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
- Amsterdam UMC, Vrije Universiteit Amsterdam, OncoProteomics Laboratory, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
- Division of Molecular Carcinogenesis, Netherlands Cancer Institute, Oncode Institute, 1066 CX Amsterdam, Netherlands
| | - Valentina Vurchio
- Candiolo Cancer Institute - FPO IRCCS, Candiolo, 10060 Torino, Italy
- Department of Oncology, University of Torino, Candiolo, 10060 Torino, Italy
| | - Francesca Cottino
- Candiolo Cancer Institute - FPO IRCCS, Candiolo, 10060 Torino, Italy
| | - Eugenia R Zanella
- Candiolo Cancer Institute - FPO IRCCS, Candiolo, 10060 Torino, Italy
| | - Giorgia Migliardi
- Candiolo Cancer Institute - FPO IRCCS, Candiolo, 10060 Torino, Italy
- Department of Oncology, University of Torino, Candiolo, 10060 Torino, Italy
| | - Marco Viviani
- Candiolo Cancer Institute - FPO IRCCS, Candiolo, 10060 Torino, Italy
- Department of Oncology, University of Torino, Candiolo, 10060 Torino, Italy
| | - Elena Grassi
- Candiolo Cancer Institute - FPO IRCCS, Candiolo, 10060 Torino, Italy
- Department of Oncology, University of Torino, Candiolo, 10060 Torino, Italy
| | - Barbara Lupo
- Candiolo Cancer Institute - FPO IRCCS, Candiolo, 10060 Torino, Italy
| | - Alex A Henneman
- Amsterdam UMC, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
- Amsterdam UMC, Vrije Universiteit Amsterdam, OncoProteomics Laboratory, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - Jaco C Knol
- Amsterdam UMC, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
- Amsterdam UMC, Vrije Universiteit Amsterdam, OncoProteomics Laboratory, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - Thang V Pham
- Amsterdam UMC, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
- Amsterdam UMC, Vrije Universiteit Amsterdam, OncoProteomics Laboratory, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - Richard de Goeij-de Haas
- Amsterdam UMC, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
- Amsterdam UMC, Vrije Universiteit Amsterdam, OncoProteomics Laboratory, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - Sander R Piersma
- Amsterdam UMC, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
- Amsterdam UMC, Vrije Universiteit Amsterdam, OncoProteomics Laboratory, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - Mariette Labots
- Amsterdam UMC, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - Henk M W Verheul
- Amsterdam UMC, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center Rotterdam, Dr. Molewaterplein 40, 3015 GD Rotterdam, Netherlands
| | - Livio Trusolino
- Candiolo Cancer Institute - FPO IRCCS, Candiolo, 10060 Torino, Italy
- Department of Oncology, University of Torino, Candiolo, 10060 Torino, Italy
| | - Connie R Jimenez
- Amsterdam UMC, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
- Amsterdam UMC, Vrije Universiteit Amsterdam, OncoProteomics Laboratory, Cancer Center Amsterdam, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
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13
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Wang P, Wang Q, Chen L, Cao Z, Zhao H, Su R, Wang N, Ma X, Shan J, Chen X, Zhang Q, Du B, Yuan Z, Zhao Y, Zhang X, Guo X, Xue Y, Miao L. RNA-binding protein complex AMG-1/SLRP-1 mediates germline development and spermatogenesis by maintaining mitochondrial homeostasis in Caenorhabditis elegans. Sci Bull (Beijing) 2023; 68:1399-1412. [PMID: 37355389 DOI: 10.1016/j.scib.2023.05.029] [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: 03/31/2023] [Revised: 04/16/2023] [Accepted: 04/18/2023] [Indexed: 06/26/2023]
Abstract
The mechanisms of RNA-binding proteins (RBPs)-mediated post-transcriptional regulation of pre-existing mRNAs, which is essential for spermatogenesis, remain poorly understood. In this study, we identify that a germline-specific mitochondrial RBP AMG-1(abnormal mitochondria in germline 1), a homolog of mammalian leucine-rich PPR motif-containing protein (LRPPRC), is required for spermatogenesis in Caenorhabditis elegans. The amg-1 mutation hinders germline development without affecting somatic development and leads to the aberrant mitochondrial morphology and structure associated with mitochondrial dysfunctions specifically in the germline. We demonstrate that AMG-1 is most frequently bound to mtDNA-encoded 12S and 16S ribosomal RNA, the essential components of mitochondrial ribosomes, and that 12S rRNA expression mediated by AMG-1 is crucial for germline mitochondrial protein homeostasis. Furthermore, steroid receptor RNA activator (SRA) stem loop interacting RNA binding protein (SLRP-1), a homolog of mammalian SRA stem loop interacting RNA binding protein (SLIRP) in C. elegans, interacts with AMG-1 genetically to regulate germline development and reproductive success in C. elegans. Overall, these findings reveal the novel function of mtRBP, specifically in regulating germline development.
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Affiliation(s)
- Peng Wang
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100059, China; National Institute of Biological Sciences, Beijing 102206, China
| | - Qiushi Wang
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100059, China
| | - Lianwan Chen
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Zheng Cao
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Hailian Zhao
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100059, China
| | - Ruibao Su
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100059, China
| | - Ning Wang
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100059, China
| | - Xiaojing Ma
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100059, China
| | - Jin Shan
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100059, China
| | - Xinyan Chen
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100059, China
| | - Qi Zhang
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100059, China; Department of Automation, Tsinghua University, Beijing 100084, China
| | - Baochen Du
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100059, China
| | - Zhiheng Yuan
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100059, China
| | - Yanmei Zhao
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.
| | - Xiaorong Zhang
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.
| | - Xuejiang Guo
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Nanjing Medical University, Nanjing 211166, China.
| | - Yuanchao Xue
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100059, China.
| | - Long Miao
- Key Laboratory of RNA Biology, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100059, China; Center for Biological Imaging, Core Facilities for Protein Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of Cell Proliferation and Regulation Biology of Ministry of Education, College of Life Science, Beijing Normal University, Beijing 100875, China.
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14
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Tang X, Yan Z, Miao Y, Ha W, Li Z, Yang L, Mi D. Copper in cancer: from limiting nutrient to therapeutic target. Front Oncol 2023; 13:1209156. [PMID: 37427098 PMCID: PMC10327296 DOI: 10.3389/fonc.2023.1209156] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 06/13/2023] [Indexed: 07/11/2023] Open
Abstract
As an essential nutrient, copper's redox properties are both beneficial and toxic to cells. Therefore, leveraging the characteristics of copper-dependent diseases or using copper toxicity to treat copper-sensitive diseases may offer new strategies for specific disease treatments. In particular, copper concentration is typically higher in cancer cells, making copper a critical limiting nutrient for cancer cell growth and proliferation. Hence, intervening in copper metabolism specific to cancer cells may become a potential tumor treatment strategy, directly impacting tumor growth and metastasis. In this review, we discuss the metabolism of copper in the body and summarize research progress on the role of copper in promoting tumor cell growth or inducing programmed cell death in tumor cells. Additionally, we elucidate the role of copper-related drugs in cancer treatment, intending to provide new perspectives for cancer treatment.
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Affiliation(s)
- Xiaolong Tang
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
- The Second Department of Gastrointestinal Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Zaihua Yan
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
- The Second Department of Gastrointestinal Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Yandong Miao
- Department of Oncology, Yantai Affiliated Hospital of Binzhou Medical University, The Second Clinical Medical College of Binzhou Medical University, Yantai, Shandong, China
| | - Wuhua Ha
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Zheng Li
- Division of Thoracic Tumor Multimodality Treatment and Department of Radiation Oncology, Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Lixia Yang
- Gansu Academy of Traditional Chinese Medicine, Lanzhou, Gansu, China
| | - Denghai Mi
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
- Gansu Academy of Traditional Chinese Medicine, Lanzhou, Gansu, China
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15
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Sabbir MG, Swanson M, Speth RC, Albensi BC. Hippocampal versus cortical deletion of cholinergic receptor muscarinic 1 in mice differentially affects post-translational modifications and supramolecular assembly of respiratory chain-associated proteins, mitochondrial ultrastructure, and respiration: implications in Alzheimer's disease. Front Cell Dev Biol 2023; 11:1179252. [PMID: 37293125 PMCID: PMC10246746 DOI: 10.3389/fcell.2023.1179252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 05/02/2023] [Indexed: 06/10/2023] Open
Abstract
Introduction: In a previous retrospective study using postmortem human brain tissues, we demonstrated that loss of Cholinergic Receptor Muscarinic 1 (CHRM1) in the temporal cortex of a subset of Alzheimer's patients was associated with poor survival, whereas similar loss in the hippocampus showed no such association. Mitochondrial dysfunction underlies Alzheimer's pathogenesis. Therefore, to investigate the mechanistic basis of our findings, we evaluated cortical mitochondrial phenotypes in Chrm1 knockout (Chrm1-/-) mice. Cortical Chrm1 loss resulted in reduced respiration, reduced supramolecular assembly of respiratory protein complexes, and caused mitochondrial ultrastructural abnormalities. These mouse-based findings mechanistically linked cortical CHRM1 loss with poor survival of Alzheimer's patients. However, evaluation of the effect of Chrm1 loss on mouse hippocampal mitochondrial characteristics is necessary to fully understand our retrospective human tissue-based observations. This is the objective of this study. Methods: Enriched hippocampal and cortical mitochondrial fractions (EHMFs/ECMFs, respectively) derived from wild-type and Chrm1-/- mice were used to measure respiration by quantifying real-time oxygen consumption, supramolecular assembly of oxidative phosphorylation (OXPHOS)-associated proteins by blue native polyacrylamide gel electrophoresis, post-translational modifications (PTMs) by isoelectric focusing (IEF), and mitochondrial ultrastructure by electron microscopy. Results: In contrast to our previous observations in Chrm1-/- ECMFs, EHMFs of Chrm1-/- mice significantly increased respiration with a concomitant increase in the supramolecular assembly of OXPHOS-associated proteins, specifically Atp5a and Uqcrc2, with no mitochondrial ultrastructural alterations. IEF of ECMFs and EHMFs from Chrm1-/- mice showed a decrease and an increase, respectively in a negatively charged (pH∼3) fraction of Atp5a relative to the wild-type mice, with a corresponding decrease or increase in the supramolecular assembly of Atp5a and respiration indicating a tissue-specific signaling effect. Discussion: Our findings indicate that loss of Chrm1 in the cortex causes structural, and physiological alterations to mitochondria that compromise neuronal function, whereas Chrm1 loss in the hippocampus may benefit neuronal function by enhancing mitochondrial function. This brain region-specific differential effect of Chrm1 deletion on mitochondrial function supports our human brain region-based findings and Chrm1-/- mouse behavioral phenotypes. Furthermore, our study indicates that Chrm1-mediated brain region-specific differential PTMs of Atp5a may alter complex-V supramolecular assembly which in turn regulates mitochondrial structure-function.
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Affiliation(s)
- Mohammad Golam Sabbir
- Division of Neurodegenerative Disorders, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada
- Alzo Biosciences Inc., San Diego, CA, United States
- Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada
- Barry & Judy Silverman College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL, United States
| | - Mamiko Swanson
- Alzo Biosciences Inc., San Diego, CA, United States
- Barry & Judy Silverman College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL, United States
| | - Robert C. Speth
- Barry & Judy Silverman College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL, United States
- Department of Pharmacology and Physiology, School of Medicine, Georgetown University, Washington, DC, United States
| | - Benedict C. Albensi
- Division of Neurodegenerative Disorders, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada
- Barry & Judy Silverman College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL, United States
- Department of Pharmacology and Therapeutics, University of Manitoba, Winnipeg, MB, Canada
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16
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Chen Y, Yao L, Zhao S, Xu M, Ren S, Xie L, Liu L, Wang Y. The oxidative aging model integrated various risk factors in type 2 diabetes mellitus at system level. Front Endocrinol (Lausanne) 2023; 14:1196293. [PMID: 37293508 PMCID: PMC10244788 DOI: 10.3389/fendo.2023.1196293] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 05/10/2023] [Indexed: 06/10/2023] Open
Abstract
Background Type 2 diabetes mellitus (T2DM) is a chronic endocrine metabolic disease caused by insulin dysregulation. Studies have shown that aging-related oxidative stress (as "oxidative aging") play a critical role in the onset and progression of T2DM, by leading to an energy metabolism imbalance. However, the precise mechanisms through which oxidative aging lead to T2DM are yet to be fully comprehended. Thus, it is urgent to integrate the underlying mechanisms between oxidative aging and T2DM, where meaningful prediction models based on relative profiles are needed. Methods First, machine learning was used to build the aging model and disease model. Next, an integrated oxidative aging model was employed to identify crucial oxidative aging risk factors. Finally, a series of bioinformatic analyses (including network, enrichment, sensitivity, and pan-cancer analyses) were used to explore potential mechanisms underlying oxidative aging and T2DM. Results The study revealed a close relationship between oxidative aging and T2DM. Our results indicate that nutritional metabolism, inflammation response, mitochondrial function, and protein homeostasis are key factors involved in the interplay between oxidative aging and T2DM, even indicating key indices across different cancer types. Therefore, various risk factors in T2DM were integrated, and the theories of oxi-inflamm-aging and cellular senescence were also confirmed. Conclusion In sum, our study successfully integrated the underlying mechanisms linking oxidative aging and T2DM through a series of computational methodologies.
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Affiliation(s)
- Yao Chen
- Department of Biomedical Engineering, School of Intelligent Medicine, China Medical University, Shenyang, Liaoning, China
| | - Lilin Yao
- Department of Biomedical Engineering, School of Intelligent Medicine, China Medical University, Shenyang, Liaoning, China
| | - Shuheng Zhao
- Department of Biomedical Engineering, School of Intelligent Medicine, China Medical University, Shenyang, Liaoning, China
| | - Mengchu Xu
- Department of Biomedical Engineering, School of Intelligent Medicine, China Medical University, Shenyang, Liaoning, China
| | - Siwei Ren
- Department of Biomedical Engineering, School of Intelligent Medicine, China Medical University, Shenyang, Liaoning, China
| | - Lu Xie
- Shanghai-MOST Key Laboratory of Health and Disease Genomics & Institute for Genome and Bioinformatics, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, China
| | - Lei Liu
- Intelligent Medicine Institute, Fudan University, Shanghai, China
| | - Yin Wang
- Department of Biomedical Engineering, School of Intelligent Medicine, China Medical University, Shenyang, Liaoning, China
- Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, The First Hospital of China Medical University, Shenyang, China
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17
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Abu Shelbayeh O, Arroum T, Morris S, Busch KB. PGC-1α Is a Master Regulator of Mitochondrial Lifecycle and ROS Stress Response. Antioxidants (Basel) 2023; 12:antiox12051075. [PMID: 37237941 DOI: 10.3390/antiox12051075] [Citation(s) in RCA: 57] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/20/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
Mitochondria play a major role in ROS production and defense during their life cycle. The transcriptional activator PGC-1α is a key player in the homeostasis of energy metabolism and is therefore closely linked to mitochondrial function. PGC-1α responds to environmental and intracellular conditions and is regulated by SIRT1/3, TFAM, and AMPK, which are also important regulators of mitochondrial biogenesis and function. In this review, we highlight the functions and regulatory mechanisms of PGC-1α within this framework, with a focus on its involvement in the mitochondrial lifecycle and ROS metabolism. As an example, we show the role of PGC-1α in ROS scavenging under inflammatory conditions. Interestingly, PGC-1α and the stress response factor NF-κB, which regulates the immune response, are reciprocally regulated. During inflammation, NF-κB reduces PGC-1α expression and activity. Low PGC-1α activity leads to the downregulation of antioxidant target genes resulting in oxidative stress. Additionally, low PGC-1α levels and concomitant oxidative stress promote NF-κB activity, which exacerbates the inflammatory response.
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Affiliation(s)
- Othman Abu Shelbayeh
- Institute of Integrative Cell Biology and Physiology, University of Münster, Schlossplatz 5, 48149 Münster, Germany
| | - Tasnim Arroum
- Institute of Integrative Cell Biology and Physiology, University of Münster, Schlossplatz 5, 48149 Münster, Germany
- Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48202, USA
| | - Silke Morris
- Institute of Integrative Cell Biology and Physiology, University of Münster, Schlossplatz 5, 48149 Münster, Germany
| | - Karin B Busch
- Institute of Integrative Cell Biology and Physiology, University of Münster, Schlossplatz 5, 48149 Münster, Germany
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18
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Begum HM, Shen K. Intracellular and microenvironmental regulation of mitochondrial membrane potential in cancer cells. WIREs Mech Dis 2023; 15:e1595. [PMID: 36597256 PMCID: PMC10176868 DOI: 10.1002/wsbm.1595] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 12/08/2022] [Accepted: 12/15/2022] [Indexed: 01/05/2023]
Abstract
Cancer cells have an abnormally high mitochondrial membrane potential (ΔΨm ), which is associated with enhanced invasive properties in vitro and increased metastases in vivo. The mechanisms underlying the abnormal ΔΨm in cancer cells remain unclear. Research on different cell types has shown that ΔΨm is regulated by various intracellular mechanisms such as by mitochondrial inner and outer membrane ion transporters, cytoskeletal elements, and biochemical signaling pathways. On the other hand, the role of extrinsic, tumor microenvironment (TME) derived cues in regulating ΔΨm is not well defined. In this review, we first summarize the existing literature on intercellular mechanisms of ΔΨm regulation, with a focus on cancer cells. We then offer our perspective on the different ways through which the microenvironmental cues such as hypoxia and mechanical stresses may regulate cancer cell ΔΨm . This article is categorized under: Cancer > Environmental Factors Cancer > Biomedical Engineering Cancer > Molecular and Cellular Physiology.
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Affiliation(s)
- Hydari Masuma Begum
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089
| | - Keyue Shen
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089
- USC Stem Cell, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033
- Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033
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19
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Ssu72 phosphatase is essential for thermogenic adaptation by regulating cytosolic translation. Nat Commun 2023; 14:1097. [PMID: 36841836 PMCID: PMC9968297 DOI: 10.1038/s41467-023-36836-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 02/20/2023] [Indexed: 02/27/2023] Open
Abstract
Brown adipose tissue (BAT) plays a pivotal role in maintaining body temperature and energy homeostasis. BAT dysfunction is associated with impaired metabolic health. Here, we show that Ssu72 phosphatase is essential for mRNA translation of genes required for thermogenesis in BAT. Ssu72 is found to be highly expressed in BAT among adipose tissue depots, and the expression level of Ssu72 is increased upon acute cold exposure. Mice lacking adipocyte Ssu72 exhibit cold intolerance during acute cold exposure. Mechanistically, Ssu72 deficiency alters cytosolic mRNA translation program through hyperphosphorylation of eIF2α and reduces translation of mitochondrial oxidative phosphorylation (OXPHOS) subunits, resulting in mitochondrial dysfunction and defective thermogenesis in BAT. In addition, metabolic dysfunction in Ssu72-deficient BAT returns to almost normal after restoring Ssu72 expression. In summary, our findings demonstrate that cold-responsive Ssu72 phosphatase is involved in cytosolic translation of key thermogenic effectors via dephosphorylation of eIF2α in brown adipocytes, providing insights into metabolic benefits of Ssu72.
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20
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Martín A, Epifano C, Vilaplana-Marti B, Hernández I, Macías RIR, Martínez-Ramírez Á, Cerezo A, Cabezas-Sainz P, Garranzo-Asensio M, Amarilla-Quintana S, Gómez-Domínguez D, Caleiras E, Camps J, Gómez-López G, Gómez de Cedrón M, Ramírez de Molina A, Barderas R, Sánchez L, Velasco-Miguel S, Pérez de Castro I. Mitochondrial RNA methyltransferase TRMT61B is a new, potential biomarker and therapeutic target for highly aneuploid cancers. Cell Death Differ 2023; 30:37-53. [PMID: 35869285 PMCID: PMC9883398 DOI: 10.1038/s41418-022-01044-6] [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: 05/23/2021] [Revised: 06/27/2022] [Accepted: 07/09/2022] [Indexed: 02/01/2023] Open
Abstract
Despite being frequently observed in cancer cells, chromosomal instability (CIN) and its immediate consequence, aneuploidy, trigger adverse effects on cellular homeostasis that need to be overcome by anti-stress mechanisms. As such, these safeguard responses represent a tumor-specific Achilles heel, since CIN and aneuploidy are rarely observed in normal cells. Recent data have revealed that epitranscriptomic marks catalyzed by RNA-modifying enzymes change under various stress insults. However, whether aneuploidy is associated with such RNA modifying pathways remains to be determined. Through an in silico search for aneuploidy biomarkers in cancer cells, we found TRMT61B, a mitochondrial RNA methyltransferase enzyme, to be associated with high levels of aneuploidy. Accordingly, TRMT61B protein levels are increased in tumor cell lines with an imbalanced karyotype as well as in different tumor types when compared to control tissues. Interestingly, while TRMT61B depletion induces senescence in melanoma cell lines with low levels of aneuploidy, it leads to apoptosis in cells with high levels. The therapeutic potential of these results was further validated by targeting TRMT61B in transwell and xenografts assays. We show that TRM61B depletion reduces the expression of several mitochondrial encoded proteins and limits mitochondrial function. Taken together, these results identify a new biomarker of aneuploidy in cancer cells that could potentially be used to selectively target highly aneuploid tumors.
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Affiliation(s)
- Alberto Martín
- Gene Therapy Unit, Instituto de Investigación de Enfermedades Raras, Instituto de Salud Carlos III (ISCIII), Madrid, Spain.
| | - Carolina Epifano
- Gene Therapy Unit, Instituto de Investigación de Enfermedades Raras, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Borja Vilaplana-Marti
- Gene Therapy Unit, Instituto de Investigación de Enfermedades Raras, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Iván Hernández
- Gene Therapy Unit, Instituto de Investigación de Enfermedades Raras, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Rocío I R Macías
- Experimental Hepatology and Drug Targeting (HEVEPHARM) Group, University of Salamanca, Biomedical Research Institute of Salamanca (IBSAL), Salamanca, Spain
- National Institute for the Study of Liver and Gastrointestinal Diseases, CIBERehd, Carlos III Health Institute, Madrid, Spain
| | - Ángel Martínez-Ramírez
- Department of Molecular Cytogenetics, MD Anderson Cancer Center, Madrid, Spain
- Oncohematology Cytogenetics Laboratory, Eurofins-Megalab, Madrid, Spain
| | - Ana Cerezo
- Lilly Cell Signaling and Immunometabolism Section, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Pablo Cabezas-Sainz
- Department of Zoology, Genetics and Physical Anthropology, Universidade de Santiago de Compostela, Campus de Lugo, 27002, Lugo, Spain
| | - Maria Garranzo-Asensio
- Chronic Disease Program (UFIEC), Instituto de Salud Carlos III (ISCIII), E-28220, Madrid, Spain
| | - Sandra Amarilla-Quintana
- Gene Therapy Unit, Instituto de Investigación de Enfermedades Raras, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Programa de Doctorado UNED-ISCIII Ciencias Biomédicas y Salud Pública, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain
| | - Déborah Gómez-Domínguez
- Gene Therapy Unit, Instituto de Investigación de Enfermedades Raras, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Eduardo Caleiras
- Histopathology Core Unit, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Jordi Camps
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, Institut d'Investigacio´ Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
| | - Gonzalo Gómez-López
- Bioinformatics Unit, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Marta Gómez de Cedrón
- Molecular Oncology Group, Precision Nutrition and Cancer Program, IMDEA FOOD, CEI UAM+CSIC, Madrid, Spain
| | - Ana Ramírez de Molina
- Molecular Oncology Group, Precision Nutrition and Cancer Program, IMDEA FOOD, CEI UAM+CSIC, Madrid, Spain
| | - Rodrigo Barderas
- Chronic Disease Program (UFIEC), Instituto de Salud Carlos III (ISCIII), E-28220, Madrid, Spain
| | - Laura Sánchez
- Department of Zoology, Genetics and Physical Anthropology, Universidade de Santiago de Compostela, Campus de Lugo, 27002, Lugo, Spain
| | - Susana Velasco-Miguel
- Lilly Cell Signaling and Immunometabolism Section, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Ignacio Pérez de Castro
- Gene Therapy Unit, Instituto de Investigación de Enfermedades Raras, Instituto de Salud Carlos III (ISCIII), Madrid, Spain.
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21
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Adzigbli L, Sokolov EP, Wimmers K, Sokolova IM, Ponsuksili S. Effects of hypoxia and reoxygenation on mitochondrial functions and transcriptional profiles of isolated brain and muscle porcine cells. Sci Rep 2022; 12:19881. [PMID: 36400902 PMCID: PMC9674649 DOI: 10.1038/s41598-022-24386-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 11/15/2022] [Indexed: 11/19/2022] Open
Abstract
Oxygen fluctuations might occur in mammalian tissues under physiological (e.g. at high altitudes) or pathological (e.g. ischemia-reperfusion) conditions. Mitochondria are the key target and potential amplifiers of hypoxia-reoxygenation (H-R) stress. Understanding the mitochondrial responses to H-R stress is important for identifying adaptive mechanisms and potential therapeutic solutions for pathologies associated with oxygen fluctuations. We explored metabolic response to H-R stress in two tissue types (muscle and brain) with different degrees of hypoxia tolerance in a domestic pig Sus scrofa focusing on the cellular responses independent of the systemic regulatory mechanisms. Isolated cells from the skeletal muscle (masseter) and brain (thalamus) were exposed to acute short-term (15 min) hypoxia followed by reoxygenation. The mitochondrial oxygen consumption, reactive oxygen species (ROS) production rates and transcriptional profiles of hypoxia-responsive mRNA and miRNA were determined. Mitochondria of the porcine brain cells showed a decrease in the resting respiration and ATP synthesis capacity whereas the mitochondria from the muscle cells showed robust respiration and less susceptibility to H-R stress. ROS production was not affected by the short-term H-R stress in the brain or muscle cells. Transcriptionally, prolyl hydroxylase domain protein EGLN3 was upregulated during hypoxia and suppressed during reoxygenation in porcine muscle cells. The decline in EGLN3 mRNA during reoxygenation was accompanied by an upregulation of hypoxia-inducible factor subunit α (HIF1A) transcripts in the muscle cells. However, in the brain cells, HIF1A mRNA levels were suppressed during reoxygenation. Other functionally important transcripts and miRNAs involved in antioxidant response, apoptosis, inflammation, and substrate oxidation were also differentially expressed between the muscle and brain cells. Suppression of miRNA levels during acute intermittent hypoxia was stronger in the brain cells affecting ~ 55% of all studied miRNA transcripts than in the muscle cells (~ 25% of miRNA) signifying transcriptional derepression of the respective mRNA targets. Our study provides insights into the potential molecular and physiological mechanisms contributing to different hypoxia sensitivity of the studied tissues and can serve as a starting point to better understand the biological processes associated with hypoxia stress, e.g. during ischemia and reperfusion.
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Affiliation(s)
- Linda Adzigbli
- Research Institute for Farm Animal Biology (FBN), Institute of Genome Biology, Dummerstorf, Germany
- Department of Marine Biology, Institute for Biological Sciences, University of Rostock, Rostock, Germany
| | - Eugene P Sokolov
- Leibniz Institute for Baltic Sea Research, Leibniz Science Campus Phosphorus Research, Warnemünde, Rostock, Germany
| | - Klaus Wimmers
- Research Institute for Farm Animal Biology (FBN), Institute of Genome Biology, Dummerstorf, Germany
| | - Inna M Sokolova
- Department of Marine Biology, Institute for Biological Sciences, University of Rostock, Rostock, Germany.
- Department of Maritime Systems, Interdisciplinary Faculty, University of Rostock, Rostock, Germany.
| | - Siriluck Ponsuksili
- Research Institute for Farm Animal Biology (FBN), Institute of Genome Biology, Dummerstorf, Germany.
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22
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Bazard P, Pineros J, Acosta AA, Thivierge M, Paganella LR, Zucker S, Mannering FL, Modukuri S, Zhu X, Frisina RD, Ding B. Post-Translational Modifications and Age-related Hearing Loss. Hear Res 2022; 426:108625. [DOI: 10.1016/j.heares.2022.108625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 08/21/2022] [Accepted: 09/23/2022] [Indexed: 11/04/2022]
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23
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Pérez-Cebrecos M, Prieto D, Blanco-Rayón E, Izagirre U, Ibarrola I. Differential tissue development compromising the growth rate and physiological performances of mussel. MARINE ENVIRONMENTAL RESEARCH 2022; 180:105725. [PMID: 35987041 DOI: 10.1016/j.marenvres.2022.105725] [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: 04/08/2022] [Revised: 07/27/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
Differences in the food acquisition rates and in the energetic costs of metabolism seem to affect the growth rate variability of mussels. The aim of this study was to analyze if the physiological performances responsible for such growth rate variability are accompanied by structural differences at tissue or cellular level in the main organs involved in energy acquisition (gill) and processing (digestive gland). Fast growers had higher cilia density and metabolic efficiency in their gill, and well-developed digestive tissue with barely no connective tissue or atrophy. Slow-growing mussels displayed stress signs that impede the proper acquisition, digestion and absorption of food: low cilia density, low mitochondrial capacity and high antioxidant activity levels in the gills, and high atrophy of the digestive gland. The data herein explains the growth rate variability of mussels, demonstrating that morphological and functional differences exist between fast and slow growers.
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Affiliation(s)
- Maitane Pérez-Cebrecos
- Department of Genetics, Physical Anthropology and Animal Physiology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain; Research Centre for Experimental Marine Biology and Biotechnology (PiE - UPV/EHU), University of the Basque Country (UPV/EHU), Plentzia, Spain.
| | - Daniel Prieto
- Department of Genetics, Physical Anthropology and Animal Physiology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Esther Blanco-Rayón
- Research Centre for Experimental Marine Biology and Biotechnology (PiE - UPV/EHU), University of the Basque Country (UPV/EHU), Plentzia, Spain; CBET Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Urtzi Izagirre
- Research Centre for Experimental Marine Biology and Biotechnology (PiE - UPV/EHU), University of the Basque Country (UPV/EHU), Plentzia, Spain; CBET Research Group, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Irrintzi Ibarrola
- Department of Genetics, Physical Anthropology and Animal Physiology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
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24
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Mannose ameliorates experimental colitis by protecting intestinal barrier integrity. Nat Commun 2022; 13:4804. [PMID: 35974017 PMCID: PMC9381535 DOI: 10.1038/s41467-022-32505-8] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 08/02/2022] [Indexed: 12/23/2022] Open
Abstract
Metabolite alteration has been associated with the pathogenesis of inflammatory bowel disease (IBD), including colitis. Mannose, a natural bioactive monosaccharide that is involved in metabolism and synthesis of glycoproteins, exhibits anti-inflammatory and anti-oxidative activities. We show here that the circulating level of mannose is increased in patients with IBD and mice with experimental colitis. Mannose treatment attenuates intestinal barrier damage in two mouse colitis models, dextran sodium sulfate (DSS)-induced colitis and spontaneous colitis in IL-10-deficient mice. We demonstrate that mannose treatment enhanced lysosomal integrity and limited the release of cathepsin B, preventing mitochondrial dysfunction and myosin light chain kinase (MLCK)-induced tight junction disruption in the context of intestinal epithelial damage. Mannose exerts a synergistic therapeutic effect with mesalamine on mouse colitis. Cumulatively, the results indicate that mannose supplementation may be an optional approach to the treatment of colitis and other diseases associated with intestinal barrier dysfunction.
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25
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Divergent evolution of mitogenomics in Cetartiodactyla niche adaptation. ORG DIVERS EVOL 2022. [DOI: 10.1007/s13127-022-00574-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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26
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Li L, Li J, Chen H, Shen Y, Lu Y, Zhang M, Tang X. Azoxystrobin induces apoptosis via PI3K/AKT and MAPK signal pathways in oral leukoplakia progression. Front Pharmacol 2022; 13:912084. [PMID: 35991869 PMCID: PMC9385958 DOI: 10.3389/fphar.2022.912084] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 06/29/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Oral leukoplakia (OLK) is one of the oral potentially malignant disorders (OPMDs) with an increased risk of developing oral squamous cell carcinoma (OSCC). There is no ideal therapeutic drug yet. Our previous study showed azoxystrobin (AZOX) inhibited the viability of OLK cells and the incidence of mouse tongue cancer. However, its specific mechanism has not been clarified. Here, we used network pharmacology with experimental validation to investigate the roles and mechanisms of AZOX in OLK.Methods: The targets of AZOX and OLK were obtained from online databases. The overlapping genes were identified by the Jvenn database. STRING and Cytoscape software were used to construct the PPI network. GO and KEGG enrichment analyses were used to analyze the biological function. Molecular docking and CETSA were used to verify the direct binding between AZOX and its key targets. 4NQO induced mouse tongue carcinogenesis model was constructed to clarify the treatment response of AZOX in vivo. TUNEL staining was performed to detect the effect of AZOX on apoptosis in mouse OLK tissues. CCK8 assay, flow cytometry, and western blot were used to detect the effect of AZOX on cell proliferation and apoptosis in DOK cells. The expression of PI3K/AKT and MAPK markers were analyzed by immunohistochemistry in vivo or by western blot in vitro.Results: Venn diagram showed 457 overlapping targets, which were involved in the PI3K/AKT, MAPK, and apoptosis pathways, and the top 5 hub modules were TP53, STAT3, AKT1, MAPK1, and PIK3R1. AZOX was bound with the highest force to AKT and PI3K by AutoDock Vina. PyMOL software visualized that AZOX could fit in the binding pocket of the AKT and PI3K. The carcinogenesis rate of the mouse OLK in the high-dose AZOX group was significantly reduced. AZOX induced apoptosis in the OLK tissues and DOK cells, and the expression of PI3K, AKT, p-ERK was decreased, and the expression of p-p38 and p-JNK was increased. CETSA indicated that AZOX might have a direct binding with AKT and PI3K.Conclusion: AZOX may induce apoptosis via PI3K/AKT and MAPK pathways in OLK. This study reveals the potential therapeutic targets of AZOX in OLK.
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Affiliation(s)
- Lingyu Li
- Division of Oral Pathology, Beijing Stomatological Hospital and School of Stomatology, Beijing Institute of Dental Research, Capital Medical University, Beijing, China
| | - Jing Li
- Division of Oral Pathology, Beijing Stomatological Hospital and School of Stomatology, Beijing Institute of Dental Research, Capital Medical University, Beijing, China
| | - Hui Chen
- Department of stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yajun Shen
- Division of Oral Pathology, Beijing Stomatological Hospital and School of Stomatology, Beijing Institute of Dental Research, Capital Medical University, Beijing, China
| | - Yunping Lu
- Division of Oral Pathology, Beijing Stomatological Hospital and School of Stomatology, Beijing Institute of Dental Research, Capital Medical University, Beijing, China
| | - Min Zhang
- Division of Oral Pathology, Beijing Stomatological Hospital and School of Stomatology, Beijing Institute of Dental Research, Capital Medical University, Beijing, China
| | - Xiaofei Tang
- Division of Oral Pathology, Beijing Stomatological Hospital and School of Stomatology, Beijing Institute of Dental Research, Capital Medical University, Beijing, China
- *Correspondence: Xiaofei Tang,
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27
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Inigo JR, Chandra D. The mitochondrial unfolded protein response (UPR mt): shielding against toxicity to mitochondria in cancer. J Hematol Oncol 2022; 15:98. [PMID: 35864539 PMCID: PMC9306209 DOI: 10.1186/s13045-022-01317-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 07/11/2022] [Indexed: 12/20/2022] Open
Abstract
Mitochondria are essential for tumor growth and progression. However, the heavy demand for mitochondrial activity in cancer leads to increased production of mitochondrial reactive oxygen species (mtROS), accumulation of mutations in mitochondrial DNA, and development of mitochondrial dysfunction. If left unchecked, excessive mtROS can damage and unfold proteins in the mitochondria to an extent that becomes lethal to the tumor. Cellular systems have evolved to combat mtROS and alleviate mitochondrial stress through a quality control mechanism called the mitochondrial unfolded protein response (UPRmt). The UPRmt system is composed of chaperones and proteases, which promote protein folding or eliminate mitochondrial proteins damaged by mtROS, respectively. UPRmt is conserved and activated in cancer in response to mitochondrial stress to maintain mitochondrial integrity and support tumor growth. In this review, we discuss how mitochondria become dysfunctional in cancer and highlight the tumor-promoting functions of key components of the UPRmt.
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Affiliation(s)
- Joseph R Inigo
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY, 14263, USA
| | - Dhyan Chandra
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY, 14263, USA.
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28
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Quantitative Proteome Analysis Reveals Melissa officinalis Extract Targets Mitochondrial Respiration in Colon Cancer Cells. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27144533. [PMID: 35889404 PMCID: PMC9316399 DOI: 10.3390/molecules27144533] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 07/09/2022] [Accepted: 07/13/2022] [Indexed: 11/21/2022]
Abstract
Melissa officinalis (MO), known as lemon balm, is a popular ingredient blended in herbal tea. In recent decades, the bioactivities of MO have been studied in sub-health and pathological status, highlighting MO possesses multiple pharmacological effects. We previously showed that hot water MO extract exhibited anticancer activity in colorectal cancer (CRC). However, the detailed mechanisms underlying MO-induced cell death remain elusive. To elucidate the anticancer regulation of MO extract in colon cancer, a data-driven analysis by proteomics approaches and bioinformatics analysis was applied. An isobaric tandem mass tags-based quantitative proteome analysis using liquid chromatography–coupled tandem mass spectrometry was performed to acquire proteome-wide expression data. The over-representation analysis and functional class scoring method were implemented to interpret the MO-induced biological regulations. In total, 3465 quantifiable proteoforms were identified from 24,348 peptides, with 67 upregulated and 54 downregulated proteins in the MO-treated group. Mechanistically, MO impeded mitochondrial respiratory electron transport by triggering a reactive oxygen species (ROS)-mediated oxidative stress response. MO hindered the mitochondrial membrane potential by reducing the protein expression in the electron transport chain, specifically the complex I and II, which could be restored by ROS scavenger. The findings comprehensively elucidate how MO hot water extract activates antitumor effects in colorectal cancer (CRC) cells.
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29
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Emtenani S, Martin ET, Gyoergy A, Bicher J, Genger JW, Köcher T, Akhmanova M, Guarda M, Roblek M, Bergthaler A, Hurd TR, Rangan P, Siekhaus DE. Macrophage mitochondrial bioenergetics and tissue invasion are boosted by an Atossa-Porthos axis in Drosophila. EMBO J 2022; 41:e109049. [PMID: 35319107 PMCID: PMC9194793 DOI: 10.15252/embj.2021109049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 02/14/2022] [Accepted: 02/25/2022] [Indexed: 12/03/2022] Open
Abstract
Cellular metabolism must adapt to changing demands to enable homeostasis. During immune responses or cancer metastasis, cells leading migration into challenging environments require an energy boost, but what controls this capacity is unclear. Here, we study a previously uncharacterized nuclear protein, Atossa (encoded by CG9005), which supports macrophage invasion into the germband of Drosophila by controlling cellular metabolism. First, nuclear Atossa increases mRNA levels of Porthos, a DEAD‐box protein, and of two metabolic enzymes, lysine‐α‐ketoglutarate reductase (LKR/SDH) and NADPH glyoxylate reductase (GR/HPR), thus enhancing mitochondrial bioenergetics. Then Porthos supports ribosome assembly and thereby raises the translational efficiency of a subset of mRNAs, including those affecting mitochondrial functions, the electron transport chain, and metabolism. Mitochondrial respiration measurements, metabolomics, and live imaging indicate that Atossa and Porthos power up OxPhos and energy production to promote the forging of a path into tissues by leading macrophages. Since many crucial physiological responses require increases in mitochondrial energy output, this previously undescribed genetic program may modulate a wide range of cellular behaviors.
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Affiliation(s)
- Shamsi Emtenani
- Institute of Science and Technology Austria, Klosterneuburg, Austria
| | - Elliot T Martin
- Department of Biological Sciences, RNA Institute, University at Albany, Albany, NY, USA
| | - Attila Gyoergy
- Institute of Science and Technology Austria, Klosterneuburg, Austria
| | - Julia Bicher
- Institute of Science and Technology Austria, Klosterneuburg, Austria
| | - Jakob-Wendelin Genger
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | | | - Maria Akhmanova
- Institute of Science and Technology Austria, Klosterneuburg, Austria
| | - Mariana Guarda
- Institute of Science and Technology Austria, Klosterneuburg, Austria
| | - Marko Roblek
- Institute of Science and Technology Austria, Klosterneuburg, Austria
| | - Andreas Bergthaler
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Thomas R Hurd
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Prashanth Rangan
- Department of Biological Sciences, RNA Institute, University at Albany, Albany, NY, USA
| | - Daria E Siekhaus
- Institute of Science and Technology Austria, Klosterneuburg, Austria
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Chemotherapy Resistance: Role of Mitochondrial and Autophagic Components. Cancers (Basel) 2022; 14:cancers14061462. [PMID: 35326612 PMCID: PMC8945922 DOI: 10.3390/cancers14061462] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/10/2022] [Accepted: 03/10/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Chemotherapy resistance is a common occurrence during cancer treatment that cancer researchers are attempting to understand and overcome. Mitochondria are a crucial intracellular signaling core that are becoming important determinants of numerous aspects of cancer genesis and progression, such as metabolic reprogramming, metastatic capability, and chemotherapeutic resistance. Mitophagy, or selective autophagy of mitochondria, can influence both the efficacy of tumor chemotherapy and the degree of drug resistance. Regardless of the fact that mitochondria are well-known for coordinating ATP synthesis from cellular respiration in cellular bioenergetics, little is known its mitophagy regulation in chemoresistance. Recent advancements in mitochondrial research, mitophagy regulatory mechanisms, and their implications for our understanding of chemotherapy resistance are discussed in this review. Abstract Cancer chemotherapy resistance is one of the most critical obstacles in cancer therapy. One of the well-known mechanisms of chemotherapy resistance is the change in the mitochondrial death pathways which occur when cells are under stressful situations, such as chemotherapy. Mitophagy, or mitochondrial selective autophagy, is critical for cell quality control because it can efficiently break down, remove, and recycle defective or damaged mitochondria. As cancer cells use mitophagy to rapidly sweep away damaged mitochondria in order to mediate their own drug resistance, it influences the efficacy of tumor chemotherapy as well as the degree of drug resistance. Yet despite the importance of mitochondria and mitophagy in chemotherapy resistance, little is known about the precise mechanisms involved. As a consequence, identifying potential therapeutic targets by analyzing the signal pathways that govern mitophagy has become a vital research goal. In this paper, we review recent advances in mitochondrial research, mitophagy control mechanisms, and their implications for our understanding of chemotherapy resistance.
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Abstract
ABSTRACT
Hypoxia is one of the strongest environmental drivers of cellular and physiological adaptation. Although most mammals are largely intolerant of hypoxia, some specialized species have evolved mitigative strategies to tolerate hypoxic niches. Among the most hypoxia-tolerant mammals are naked mole-rats (Heterocephalus glaber), a eusocial species of subterranean rodent native to eastern Africa. In hypoxia, naked mole-rats maintain consciousness and remain active despite a robust and rapid suppression of metabolic rate, which is mediated by numerous behavioural, physiological and cellular strategies. Conversely, hypoxia-intolerant mammals and most other hypoxia-tolerant mammals cannot achieve the same degree of metabolic savings while staying active in hypoxia and must also increase oxygen supply to tissues, and/or enter torpor. Intriguingly, recent studies suggest that naked mole-rats share many cellular strategies with non-mammalian vertebrate champions of anoxia tolerance, including the use of alternative metabolic end-products and potent pH buffering mechanisms to mitigate cellular acidification due to upregulation of anaerobic metabolic pathways, rapid mitochondrial remodelling to favour increased respiratory efficiency, and systemic shifts in energy prioritization to maintain brain function over that of other tissues. Herein, I discuss what is known regarding adaptations of naked mole-rats to a hypoxic lifestyle, and contrast strategies employed by this species to those of hypoxia-intolerant mammals, closely related African mole-rats, other well-studied hypoxia-tolerant mammals, and non-mammalian vertebrate champions of anoxia tolerance. I also discuss the neotenic theory of hypoxia tolerance – a leading theory that may explain the evolutionary origins of hypoxia tolerance in mammals – and highlight promising but underexplored avenues of hypoxia-related research in this fascinating model organism.
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Affiliation(s)
- Matthew E. Pamenter
- Department of Biology, University of Ottawa, Ottawa, ON, Canada, K1N 9A7. University of Ottawa, Brain and Mind Research Institute, University of Ottawa, Ottawa, ON, Canada, K1H 8M5
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Loric S, Conti M. Versatile Functional Energy Metabolism Platform Working From Research to Patient: An Integrated View of Cell Bioenergetics. FRONTIERS IN TOXICOLOGY 2022; 3:750431. [PMID: 35295105 PMCID: PMC8915814 DOI: 10.3389/ftox.2021.750431] [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: 07/30/2021] [Accepted: 10/08/2021] [Indexed: 12/06/2022] Open
Abstract
Mitochondrial dysfunctions that were not discovered during preclinical and clinical testing have been responsible for at least restriction of use as far as withdrawal of many drugs. To solve mitochondrial machinery complexity, integrative methodologies combining different data, coupled or not to mathematic modelling into systems biology, could represent a strategic way but are still very hard to implement. These technologies should be accurate and precise to avoid accumulation of errors that can lead to misinterpretations, and then alter prediction efficiency. To address such issue, we have developed a versatile functional energy metabolism platform that can measure quantitatively, in parallel, with a very high precision and accuracy, a high number of biological parameters like substrates or enzyme cascade activities in essential metabolism units (glycolysis, respiratory chain ATP production, oxidative stress...) Its versatility (our platform works on either cell lines or small animals and human samples) allows cell metabolism pathways fine tuning comparison from preclinical to clinical studies. Applied here to OXPHOS and/or oxidative stress as an example, it allows discriminating compounds with acute toxic effects but, most importantly, those inducing low noise chronic ones.
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Lin Z, Zhou J, He L, He X, Pan Z, Wang Y, He Q. High-temperature biofilm system based on heterotrophic nitrification and aerobic denitrification treating high-strength ammonia wastewater: Nitrogen removal performances and temperature-regulated metabolic pathways. BIORESOURCE TECHNOLOGY 2022; 344:126184. [PMID: 34710604 DOI: 10.1016/j.biortech.2021.126184] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/17/2021] [Accepted: 10/19/2021] [Indexed: 06/13/2023]
Abstract
Conventional autotrophic nitrification process is difficult to treat high-temperature wastewater with high-strength ammonia. In this study, a high-temperature (50 °C) biofilm system based on heterotrophic nitrification and aerobic denitrification (HNAD) was established. The results showed that the HNAD process was high temperature resistant, and the nitrogen removal performance, pathway and microbial mechanism varied remarkably at different temperatures. The high-temperature system showed excellent nitrogen and COD removal capacities at 50 °C. Ammonia oxidation was mainly undertaken by heterotrophic nitrification, while anoxic and aerobic pathways worked in concert for denitrification. High-throughput sequencing indicated that heterotrophic nitrifying bacteria (8.58%) and denitrifying bacteria (52.88%) were dominant at 50 °C. Metagenomic analysis further suggested that the carbon metabolism was up-regulated in response to the increasing temperature, so more energy was generated, thereby promoting the HNAD-related nitrogen removal pathways. The study revealed the microbial mechanism of HNAD at high temperature and provided new insights into high-temperature biological nitrogen removal.
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Affiliation(s)
- Ziyuan Lin
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Jian Zhou
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China.
| | - Lei He
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Xuejie He
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Zhanglei Pan
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Yingmu Wang
- College of Civil Engineering, Fuzhou University, Fuzhou, Fujian 350116, China
| | - Qiang He
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
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Benítez R, Núñez Y, Ayuso M, Isabel B, Fernández-Barroso MA, De Mercado E, Gómez-Izquierdo E, García-Casco JM, López-Bote C, Óvilo C. Changes in Biceps femoris Transcriptome along Growth in Iberian Pigs Fed Different Energy Sources and Comparative Analysis with Duroc Breed. Animals (Basel) 2021; 11:ani11123505. [PMID: 34944282 PMCID: PMC8697974 DOI: 10.3390/ani11123505] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/26/2021] [Accepted: 12/06/2021] [Indexed: 12/19/2022] Open
Abstract
Simple Summary The genetic mechanisms that regulate biological processes, such as skeletal muscle development and growth, or intramuscular fat deposition, have attracted great interest, given their impact on production traits and meat quality. In this sense, a comparison of the transcriptome of skeletal muscle between phenotypically different pig breeds, or along growth, could be useful to improve the understanding of the molecular processes underlying the differences in muscle metabolism and phenotypic traits, potentially driving the identification of causal genes, regulators and metabolic pathways involved in their variability. Abstract This experiment was conducted to investigate the effects of developmental stage, breed, and diet energy source on the genome-wide expression, meat quality traits, and tissue composition of biceps femoris muscle in growing pure Iberian and Duroc pigs. The study comprised 59 Iberian (IB) and 19 Duroc (DU) animals, who started the treatment at an average live weight (LW) of 19.9 kg. The animals were kept under identical management conditions and fed two diets with different energy sources (6% high oleic sunflower oil or carbohydrates). Twenty-nine IB animals were slaughtered after seven days of treatment at an average LW of 24.1 kg, and 30 IB animals plus all the DU animals were slaughtered after 47 days at an average LW of 50.7 kg. The main factors affecting the muscle transcriptome were age, with 1832 differentially expressed genes (DEGs), and breed (1055 DEGs), while the effect of diet on the transcriptome was very small. The results indicated transcriptome changes along time in Iberian animals, being especially related to growth and tissue development, extracellular matrix (ECM) composition, and cytoskeleton organization, with DEGs affecting relevant functions and biological pathways, such as myogenesis. The breed also affected functions related to muscle development and cytoskeleton organization, as well as functions related to solute transport and lipid and carbohydrate metabolism. Taking into account the results of the two main comparisons (age and breed effects), we can postulate that the Iberian breed is more precocious than the Duroc breed, regarding myogenesis and muscle development, in the studied growing stage.
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Affiliation(s)
- Rita Benítez
- Departamento de Mejora Genética Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), 28040 Madrid, Spain; (R.B.); (Y.N.); (M.A.F.-B.); (J.M.G.-C.)
| | - Yolanda Núñez
- Departamento de Mejora Genética Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), 28040 Madrid, Spain; (R.B.); (Y.N.); (M.A.F.-B.); (J.M.G.-C.)
| | - Miriam Ayuso
- Department of Veterinary Sciences, Faculty of Biomedical, Pharmaceutical and Veterinary Sciences, University of Antwerp, B-2610 Wilrijk, Belgium;
| | - Beatriz Isabel
- Departamento de Producción Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain; (B.I.); (C.L.-B.)
| | - Miguel A. Fernández-Barroso
- Departamento de Mejora Genética Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), 28040 Madrid, Spain; (R.B.); (Y.N.); (M.A.F.-B.); (J.M.G.-C.)
| | - Eduardo De Mercado
- Centro de Pruebas de Porcino ITACYL, Hontalbilla, 40353 Segovia, Spain; (E.D.M.); (E.G.-I.)
| | - Emilio Gómez-Izquierdo
- Centro de Pruebas de Porcino ITACYL, Hontalbilla, 40353 Segovia, Spain; (E.D.M.); (E.G.-I.)
| | - Juan M. García-Casco
- Departamento de Mejora Genética Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), 28040 Madrid, Spain; (R.B.); (Y.N.); (M.A.F.-B.); (J.M.G.-C.)
| | - Clemente López-Bote
- Departamento de Producción Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain; (B.I.); (C.L.-B.)
| | - Cristina Óvilo
- Departamento de Mejora Genética Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), 28040 Madrid, Spain; (R.B.); (Y.N.); (M.A.F.-B.); (J.M.G.-C.)
- Correspondence: ; Tel.: +34-91-3471492
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Azoxystrobin Impairs Neuronal Migration and Induces ROS Dependent Apoptosis in Cortical Neurons. Int J Mol Sci 2021; 22:ijms222212495. [PMID: 34830376 PMCID: PMC8622671 DOI: 10.3390/ijms222212495] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/17/2021] [Accepted: 11/17/2021] [Indexed: 11/17/2022] Open
Abstract
Fungicides often cause genotoxic stress and neurodevelopmental disorders such as autism (ASD). Fungicide-azoxystrobin (AZOX) showed acute and chronic toxicity to various organisms, and remained a concern for ill effects in developing neurons. We evaluated the neurotoxicity of AZOX in developing mouse brains, and observed prenatal exposure to AZOX reduced neuronal viability, neurite outgrowth, and cortical migration process in developing brains. The 50% inhibitory concentration (IC50) of AZOX for acute (24 h) and chronic (7 days) exposures were 30 and 10 μM, respectively. Loss in viability was due to the accumulation of reactive oxygen species (ROS), and inhibited neurite outgrowth was due to the deactivation of mTORC1 kinase activity. Pretreatment with ROS scavenger- N-acetylcysteine (NAC) reserved the viability loss and forced activation of mTORC1 kinase revived the neurite outgrowth in AZOX treated neurons. Intra-amniotic injection of AZOX coupled with in utero electroporation of GFP-labelled plasmid in E15.5 mouse was performed and 20 mg/kg AZOX inhibited radial neuronal migration. Moreover, the accumulation of mitochondria was significantly reduced in AZOX treated primary neurons, indicative of mitochondrial deactivation and induction of apoptosis, which was quantified by Bcl2/Bax ratio and caspase 3 cleavage assay. This study elucidated the neurotoxicity of AZOX and explained the possible cure from it.
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Ruiz LM, Libedinsky A, Elorza AA. Role of Copper on Mitochondrial Function and Metabolism. Front Mol Biosci 2021; 8:711227. [PMID: 34504870 PMCID: PMC8421569 DOI: 10.3389/fmolb.2021.711227] [Citation(s) in RCA: 191] [Impact Index Per Article: 63.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 07/05/2021] [Indexed: 12/21/2022] Open
Abstract
Copper is essential for life processes like energy metabolism, reactive oxygen species detoxification, iron uptake, and signaling in eukaryotic organisms. Mitochondria gather copper for the assembly of cuproenzymes such as the respiratory complex IV, cytochrome c oxidase, and the antioxidant enzyme superoxide dismutase 1. In this regard, copper plays a role in mitochondrial function and signaling involving bioenergetics, dynamics, and mitophagy, which affect cell fate by means of metabolic reprogramming. In mammals, copper homeostasis is tightly regulated by the liver. However, cellular copper levels are tissue specific. Copper imbalances, either overload or deficiency, have been associated with many diseases, including anemia, neutropenia, and thrombocytopenia, as well as tumor development and cancer aggressivity. Consistently, new pharmacological developments have been addressed to reduce or exacerbate copper levels as potential cancer therapies. This review goes over the copper source, distribution, cellular uptake, and its role in mitochondrial function, metabolic reprograming, and cancer biology, linking copper metabolism with the field of regenerative medicine and cancer.
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Affiliation(s)
- Lina M Ruiz
- Institute of Biomedical Sciences, Faculty of Health Sciences, Universidad Autónoma de Chile, Santiago, Chile
| | - Allan Libedinsky
- Institute of Biomedical Sciences, Faculty of Medicine and Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile.,Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
| | - Alvaro A Elorza
- Institute of Biomedical Sciences, Faculty of Medicine and Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile.,Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
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Li L, Herzog M, Möbitz S, Winter R. Liquid droplets of protein LAF1 provide a vehicle to regulate storage of the signaling protein K-Ras4B and its transport to the lipid membrane. Phys Chem Chem Phys 2021; 23:5370-5375. [PMID: 33645620 DOI: 10.1039/d1cp00007a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Liquid-liquid phase separation has been shown to promote the formation of functional membraneless organelles involved in various cellular processes, including metabolism, stress response and signal transduction. Protein LAF1 found in P-granules phase separates into liquid-like droplets by patterned electrostatic interactions between acidic and basic tracts in LAF1 and has been used as model system in this study. We show that signaling proteins, such as K-Ras4B, a small GTPase that acts as a molecular switch and regulates many cellular processes including proliferation, apoptosis and cell growth, can colocalize in LAF1 droplets. Colocalization is facilitated by electrostatic interactions between the positively charged polybasic domain of K-Ras4B and the negatively charged motifs of LAF1. The interaction partners B- and C-Raf of K-Ras4B can also be recruited to the liquid droplets. Upon contact with an anionic lipid bilayer membrane, the liquid droplets dissolve and K-Ras4B is released, forming nanoclusters in the lipid membrane. Considering the high tuneability of liquid-liquid phase separation in the cell, the colocalization of signaling proteins and their effector molecules in liquid droplets may provide an additional vehicle for regulating storage and transport of membrane-associated signaling proteins such as K-Ras4B and offer an alternative strategy for high-fidelity signal output.
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Affiliation(s)
- Lei Li
- Faculty of Chemistry and Chemical Biology, Physical Chemistry I - Biophysical Chemistry, TU Dortmund University, Otto-Hahn-Str. 4a, 44227 Dortmund, Germany.
| | - Marius Herzog
- Faculty of Chemistry and Chemical Biology, Physical Chemistry I - Biophysical Chemistry, TU Dortmund University, Otto-Hahn-Str. 4a, 44227 Dortmund, Germany.
| | - Simone Möbitz
- Faculty of Chemistry and Chemical Biology, Physical Chemistry I - Biophysical Chemistry, TU Dortmund University, Otto-Hahn-Str. 4a, 44227 Dortmund, Germany.
| | - Roland Winter
- Faculty of Chemistry and Chemical Biology, Physical Chemistry I - Biophysical Chemistry, TU Dortmund University, Otto-Hahn-Str. 4a, 44227 Dortmund, Germany.
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Park S, Kim K, Haam K, Ban HS, Kim JA, Park BC, Park SG, Kim S, Kim JH. Long-term depletion of cereblon induces mitochondrial dysfunction in cancer cells. BMB Rep 2021. [PMID: 33408001 PMCID: PMC8249880 DOI: 10.5483/bmbrep.2021.54.6.218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Cereblon (CRBN) is a multi-functional protein that acts as a sub-strate receptor of the E3 ligase complex and a molecular chaperone. While CRBN is proposed to function in mitochondria, its specific roles are yet to be established. Here, we showed that knockdown of CRBN triggers oxidative stress and calcium overload in mitochondria, leading to disruption of mitochondrial membrane potential. Notably, long-term CRBN depletion using PROteolysis TArgeting Chimera (PROTAC) induced irreversible mitochondrial dysfunction, resulting in cell death. Our collective findings indicate that CRBN is required for mitochondrial homeostasis in cells.
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Affiliation(s)
- Seulki Park
- Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Kidae Kim
- Division of Biomedical Informatics, Center for Genome Science, National Institute of Health, KCDC, Cheongju 28159, Korea
| | - Keeok Haam
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
| | - Hyun Seung Ban
- Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
| | - Jung-Ae Kim
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
- Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
| | - Byoung Chul Park
- Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
- Department of Proteome Structural Biology, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Sung Goo Park
- Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Sunhong Kim
- Drug Discovery Center, LG Chem, Seoul 07796, Korea
| | - Jeong-Hoon Kim
- Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
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Milane L, Dolare S, Jahan T, Amiji M. Mitochondrial nanomedicine: Subcellular organelle-specific delivery of molecular medicines. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2021; 37:102422. [PMID: 34175455 DOI: 10.1016/j.nano.2021.102422] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 04/21/2021] [Accepted: 05/27/2021] [Indexed: 02/07/2023]
Abstract
As mitochondria network together to act as the master sensors and effectors of apoptosis, ATP production, reactive oxygen species management, mitophagy/autophagy, and homeostasis; this organelle is an ideal target for pharmaceutical manipulation. Mitochondrial dysfunction contributes to many diseases, for example, β-amyloid has been shown to interfere with mitochondrial protein import and induce apoptosis in Alzheimer's Disease while some forms of Parkinson's Disease are associated with dysfunctional mitochondrial PINK1 and Parkin proteins. Mitochondrial medicine has applications in the treatment of an array of pathologies from cancer to cardiovascular disease. A challenge of mitochondrial medicine is directing therapies to a subcellular target. Nanotechnology based approaches combined with mitochondrial targeting strategies can greatly improve the clinical translation and effectiveness of mitochondrial medicine. This review discusses mitochondrial drug delivery approaches and applications of mitochondrial nanomedicines. Nanomedicine approaches have the potential to drive the success of mitochondrial therapies into the clinic.
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Affiliation(s)
- Lara Milane
- Northeastern University, Department of Pharmaceutical Sciences, Boston, MA.
| | - Saket Dolare
- Northeastern University, Department of Pharmaceutical Sciences, Boston, MA
| | - Tanjheela Jahan
- Northeastern University, Department of Pharmaceutical Sciences, Boston, MA
| | - Mansoor Amiji
- Northeastern University, Department of Pharmaceutical Sciences, Boston, MA
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Kim CW, Choi KC. Effects of anticancer drugs on the cardiac mitochondrial toxicity and their underlying mechanisms for novel cardiac protective strategies. Life Sci 2021; 277:119607. [PMID: 33992675 DOI: 10.1016/j.lfs.2021.119607] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/29/2021] [Accepted: 05/04/2021] [Indexed: 12/12/2022]
Abstract
Mitochondria are organelles that play a pivotal role in the production of energy in cells, and vital to the maintenance of cellular homeostasis due to the regulation of many biochemical processes. The heart contains a lot of mitochondria because those muscles require a lot of energy to keep supplying blood through the circulatory system, implying that the energy generated from mitochondria is highly dependent. Thus, cardiomyocytes are sensitive to mitochondrial dysfunction and are likely to be targeted by mitochondrial toxic drugs. It has been reported that some anticancer drugs caused unwanted toxicity to mitochondria. Mitochondrial dysfunction is related to aging and the onset of many diseases, such as obesity, diabetes, cancer, cardiovascular and neurodegenerative diseases. Mitochondrial toxic mechanisms can be mainly explained concerning reactive oxygen species (ROS)/redox status, calcium homeostasis, and endoplasmic reticulum stress (ER) stress signaling. The toxic mechanisms of many anticancer drugs have been revealed, but more studying and understanding of the mechanisms of drug-induced mitochondrial toxicity is required to develop mitochondrial toxicity screening system as well as novel cardioprotective strategies for the prevention of cardiac disorders of drugs. This review focuses on the cardiac mitochondrial toxicity of commonly used anticancer drugs, i.e., doxorubicin, mitoxantrone, cisplatin, arsenic trioxide, and cyclophosphamide, and their possible chemopreventive agents that can prevent or alleviate cardiac mitochondrial toxicity.
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Affiliation(s)
- Cho-Won Kim
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Kyung-Chul Choi
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea.
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Relationship between serum concentration, functional parameters and cell bioenergetics in IPEC-J2 cell line. Histochem Cell Biol 2021; 156:59-67. [PMID: 33725198 DOI: 10.1007/s00418-021-01981-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/03/2021] [Indexed: 01/24/2023]
Abstract
The foetal bovine serum (FBS) concentration could influence functional parameters of IPEC-J2 cells. IPEC-J2 is a non-transformed continuous epithelial cell line that represents an established in vitro model to study porcine gut inflammation and alterations of intestinal integrity. This cell line also represents a good translational model thanks to the high similitudes between pig and human gastrointestinal tract. With the aim to assess if the FBS-dependent functional variations are linked to the bioenergetic aspects, the addition of 5% and 10% FBS in the IPEC-J2 culture medium were tested. Doubling time and TEER measurement indicated that cells cultured at higher FBS dose grow faster and as a more compact monolayer. 10% FBS increases ATP production and mitochondrial oxidative phosphorylation (OxPhos) and does not affect glycolysis. Both at 5% and 10% FBS ATP production mainly comes from OxPhos and FBS concentration does not affect the cell respiration bioenergetic parameters. Noteworthy, IPEC-J2 treated with 5% and 10% FBS have a metabolic potential since both OxPhos and glycolysis increase by > 100% and < 50%, respectively in comparison with baseline metabolism. Moreover, glucose, fatty acids and glutamine constitute the preferred metabolic fuel for mitochondrial respiration at both FBS conditions tested. Accordingly, the cells flexibility to oxidize these substrates shows that IPEC-J2 mitochondria cannot maintain the basal ATP production without oxidizing all the substrates available irrespective of FBS concentration. To sum up, in IPEC-J2 cells OxPhos increases with the FBS-stimulated functional physiological parameters to fulfil ATP requirements.
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Adenylate kinase derived ATP shapes respiration and calcium storage of isolated mitochondria. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2021; 1862:148409. [PMID: 33713654 DOI: 10.1016/j.bbabio.2021.148409] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 02/05/2021] [Accepted: 03/07/2021] [Indexed: 01/09/2023]
Abstract
The ratio of ADP and ATP is a natural indicator of cellular bioenergetic state and thus a prominent analyte in metabolism research. Beyond adenylate interconversion via oxidative phosphorylation and ATPase activities, ADP and ATP act as steric regulators of enzymes, e.g. cytochrome C oxidase, and are major factors in mitochondrial calcium storage potential. Consideration of all routes of adenylate conversion is critical to successfully predict their abundance in an experimental system and to correctly interpret many aspects of mitochondrial function. We showcase here how adenylate kinases elicit considerable impact on the outcome of a variety of mitochondrial assays through their drastic manipulation of the adenylate profile. Parameters affected include cytochrome c oxidase activity, P/O ratio, and mitochondrial calcium dynamics. Study of the latter revealed that the presence of ATP is required for mitochondrial calcium to be shaped into a particularly dense form of mitochondrial amorphous calcium phosphate.
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Laskaratos FM, Levi A, Schwach G, Pfragner R, Hall A, Xia D, von Stempel C, Bretherton J, Thanapirom K, Alexander S, Ogunbiyi O, Watkins J, Luong TV, Toumpanakis C, Mandair D, Caplin M, Rombouts K. Transcriptomic Profiling of In Vitro Tumor-Stromal Cell Paracrine Crosstalk Identifies Involvement of the Integrin Signaling Pathway in the Pathogenesis of Mesenteric Fibrosis in Human Small Intestinal Neuroendocrine Neoplasms. Front Oncol 2021; 11:629665. [PMID: 33718208 PMCID: PMC7943728 DOI: 10.3389/fonc.2021.629665] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 01/15/2021] [Indexed: 12/22/2022] Open
Abstract
Aim Analysis of the pathophysiology of mesenteric fibrosis (MF) in small intestinal neuroendocrine tumors (SI-NETs) in an in vitro paracrine model and in human SI-NET tissue samples. Methods An indirect co-culture model of SI-NET cells KRJ-I and P-STS with stromal cells HEK293 was designed to evaluate the paracrine effects on cell metabolic activity, gene expression by RT2 PCR Profilers to analyse cancer and fibrosis related genes, and RNA sequencing. The integrin signaling pathway, a specific Ingenuity enriched pathway, was further explored in a cohort of human SI-NET tissues by performing protein analysis and immunohistochemistry. Results RT Profiler array analysis demonstrated several genes to be significantly up- or down-regulated in a cell specific manner as a result of the paracrine effect. This was further confirmed by employing RNA sequencing revealing multiple signaling pathways involved in carcinogenesis and fibrogenesis that were significantly affected in these cell lines. A significant upregulation in the expression of various integrin pathway – related genes was identified in the mesenteric mass of fibrotic SI-NET as confirmed by RT-qPCR and immunohistochemistry. Protein analysis demonstrated downstream activation of the MAPK and mTOR pathways in some patients with fibrotic SI-NETs. Conclusion This study has provided the first comprehensive analysis of the crosstalk of SI-NET cells with stromal cells. A novel pathway – the integrin pathway – was identified and further validated and confirmed in a cohort of human SI-NET tissue featured by a dual role in fibrogenesis/carcinogenesis within the neoplastic fibrotic microenvironment.
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Affiliation(s)
- Faidon-Marios Laskaratos
- Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, United Kingdom.,Regenerative Medicine and Fibrosis Group, Institute for Liver and Digestive Health, Royal Free Hospital, University College London, London, United Kingdom
| | - Ana Levi
- Regenerative Medicine and Fibrosis Group, Institute for Liver and Digestive Health, Royal Free Hospital, University College London, London, United Kingdom
| | - Gert Schwach
- Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Roswitha Pfragner
- Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Andrew Hall
- Academic Centre for Cellular Pathology, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Dong Xia
- Royal Veterinary College, University of London, London, United Kingdom
| | - Conrad von Stempel
- Radiology Department, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Josephine Bretherton
- Radiology Department, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Kessarin Thanapirom
- Regenerative Medicine and Fibrosis Group, Institute for Liver and Digestive Health, Royal Free Hospital, University College London, London, United Kingdom
| | - Sarah Alexander
- Academic Centre for Cellular Pathology, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Olagunju Ogunbiyi
- Department of Colorectal Surgery, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Jennifer Watkins
- Academic Centre for Cellular Pathology, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Tu Vinh Luong
- Academic Centre for Cellular Pathology, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Christos Toumpanakis
- Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Dalvinder Mandair
- Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Martyn Caplin
- Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Krista Rombouts
- Regenerative Medicine and Fibrosis Group, Institute for Liver and Digestive Health, Royal Free Hospital, University College London, London, United Kingdom
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Wu C, Chen C, Liu Y, Li H, Cheng B. Proteomic analysis of liver tissue between fat and lean broiler lines. Br Poult Sci 2021; 62:211-218. [PMID: 33263412 DOI: 10.1080/00071668.2020.1847253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
1. The liver is the major site of fatty acid synthesis in chickens. Lipid metabolism in the liver correlates with the deposition of triglycerides in adipose tissue. Northeast Agricultural University broilers lines divergently selected for abdominal fat content (NEAUHLF) provide a unique model to study the mechanisms of fat deposition.2. In previous studies, differentially expressed genes (DEGs) in the livers of fat and lean broilers were evaluated across different developmental stages. Whether protein expression differences exist between the livers of fat and lean broilers is largely unknown. The current experiment used 2D fluorescence difference gel electrophoresis (2D-DIGE) to screen expressed protein (DEP) spots in the liver tissues of NEAUHLF at one, four and seven weeks of age.3. Twenty-two DEPs were identified by MALDI-TOF-MS that were involved in lipid, energy, protein and amino acid metabolism, oxidative stress, cytoskeleton, and transport.4. These data furthered the understanding of the fat and lean phenotypes of broiler chickens.
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Affiliation(s)
- C Wu
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Heilongjiang, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Heilongjiang, China.,College of Animal Science and Technology, Northeast Agricultural University, Heilongjiang, China
| | - C Chen
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Heilongjiang, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Heilongjiang, China.,College of Animal Science and Technology, Northeast Agricultural University, Heilongjiang, China
| | - Y Liu
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Heilongjiang, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Heilongjiang, China.,College of Animal Science and Technology, Northeast Agricultural University, Heilongjiang, China
| | - H Li
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Heilongjiang, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Heilongjiang, China.,College of Animal Science and Technology, Northeast Agricultural University, Heilongjiang, China
| | - B Cheng
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Heilongjiang, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Heilongjiang, China.,College of Animal Science and Technology, Northeast Agricultural University, Heilongjiang, China
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45
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Dubey RK, Dhamija E, Kumar Mishra A, Soam D, Mohanrao Yabaji S, Srivastava K, Srivastava KK. Mycobacterial origin protein Rv0674 localizes into mitochondria, interacts with D-loop and regulates OXPHOS for intracellular persistence of Mycobacterium tuberculosis. Mitochondrion 2020; 57:241-256. [PMID: 33279599 DOI: 10.1016/j.mito.2020.11.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 11/04/2020] [Accepted: 11/23/2020] [Indexed: 01/05/2023]
Abstract
Mycobacterium tuberculosis (Mtb) employs diverse strategies to survive inside the host macrophages. In this study, we have identified a conserved hypothetical protein of Mtb; Rv0674, which is present in the mitochondria of the host cell. The genetic knock-out of rv0674 (Mtb-KO) showed increased growth of Mtb. The intracellular infection with recombinant Mycobacterium smegmatis (MSMEG) expressing Rv0674 (MS_Rv0674), established that the protein is involved in promoting the apoptotic cell death of the macrophage. To investigate the mechanism incurred in mitochondria, we observed that the protein physically interacts with the control region (D-loop) of the mitochondrial DNA (LSP and HSP promoters of the loop) of the macrophages and facilitates the increased expression of mRNA in all the complexes of mitochondrial encoded OXPHOS subunits. The changes in OXPHOS levels corroborated with the ATP synthesis, mitochondrial membrane potential and superoxide production. The infection with MS_Rv0674 confirmed the role of this protein in effecting the intracellular infection. The fluorescent and confocal microscopy confirmed that the protein is localized in the mitochondria of infected macrophages and in the cells of BAL of TB patients. Together these findings indicate towards the novel function of the protein which is unlike to the earlier established mechanisms of mycobacterial physiology.
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Affiliation(s)
- Rikesh Kumar Dubey
- Division of Microbiology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Ekta Dhamija
- Division of Microbiology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Alok Kumar Mishra
- Division of Microbiology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Dheeraj Soam
- Division of Microbiology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Shivraj Mohanrao Yabaji
- Division of Microbiology and Academy of Scientific and Innovative Research, India; Division of Microbiology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | | | - Kishore K Srivastava
- Division of Microbiology and Academy of Scientific and Innovative Research, India; Division of Microbiology, CSIR-Central Drug Research Institute, Lucknow 226031, India.
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46
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Mirzaei M, Gupta VK, Chitranshi N, Deng L, Pushpitha K, Abbasi M, Chick JM, Rajput R, Wu Y, McKay MJ, Salekdeh GH, Gupta VB, Haynes PA, Graham SL. Retinal proteomics of experimental glaucoma model reveal intraocular pressure-induced mediators of neurodegenerative changes. J Cell Biochem 2020; 121:4931-4944. [PMID: 32692886 DOI: 10.1002/jcb.29822] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 02/27/2020] [Accepted: 06/16/2020] [Indexed: 12/11/2022]
Abstract
Current evidence suggests that exposure to chronically induced intraocular pressure (IOP) leads to neurodegenerative changes in the inner retina. This study aimed to determine retinal proteomic alterations in a rat model of glaucoma and compared findings with human retinal proteomics changes in glaucoma reported previously. We developed an experimental glaucoma rat model by subjecting the rats to increased IOP (9.3 ± 0.1 vs 20.8 ± 1.6 mm Hg) by weekly microbead injections into the eye (8 weeks). The retinal tissues were harvested from control and glaucomatous eyes and protein expression changes analysed using a multiplexed quantitative proteomics approach (TMT-MS3). Immunofluorescence was performed for selected protein markers for data validation. Our study identified 4304 proteins in the rat retinas. Out of these, 139 proteins were downregulated (≤0.83) while the expression of 109 proteins was upregulated (≥1.2-fold change) under glaucoma conditions (P ≤ .05). Computational analysis revealed reduced expression of proteins associated with glutathione metabolism, mitochondrial dysfunction/oxidative phosphorylation, cytoskeleton, and actin filament organisation, along with increased expression of proteins in coagulation cascade, apoptosis, oxidative stress, and RNA processing. Further functional network analysis highlighted the differential modulation of nuclear receptor signalling, cellular survival, protein synthesis, transport, and cellular assembly pathways. Alterations in crystallin family, glutathione metabolism, and mitochondrial dysfunction associated proteins shared similarities between the animal model of glaucoma and the human disease condition. In contrast, the activation of the classical complement pathway and upregulation of cholesterol transport proteins were exclusive to human glaucoma. These findings provide insights into the neurodegenerative mechanisms that are specifically affected in the retina in response to chronically elevated IOP.
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Affiliation(s)
- Mehdi Mirzaei
- Department of Molecular Sciences, Macquarie University, Sydney, Australia
- Department of Clinical Medicine, Macquarie University, Sydney, Australia
- Australian Proteome Analysis Facility, Macquarie University, Sydney, Australia
| | - Vivek K Gupta
- Department of Clinical Medicine, Macquarie University, Sydney, Australia
| | - Nitin Chitranshi
- Department of Clinical Medicine, Macquarie University, Sydney, Australia
| | | | - Kanishka Pushpitha
- Department of Clinical Medicine, Macquarie University, Sydney, Australia
| | - Mojdeh Abbasi
- Department of Clinical Medicine, Macquarie University, Sydney, Australia
| | - Joel M Chick
- Department of Cell Biology, Harvard Medical School, Boston, Massachusetts
| | - Rashi Rajput
- Department of Clinical Medicine, Macquarie University, Sydney, Australia
| | - Yunqi Wu
- Department of Molecular Sciences, Macquarie University, Sydney, Australia
- Australian Proteome Analysis Facility, Macquarie University, Sydney, Australia
| | - Matthew J McKay
- Department of Molecular Sciences, Macquarie University, Sydney, Australia
- Australian Proteome Analysis Facility, Macquarie University, Sydney, Australia
| | - Ghasem H Salekdeh
- Department of Molecular Systems Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Veer B Gupta
- School of Medicine, Deakin University, Melbourne, Australia
| | - Paul A Haynes
- Department of Molecular Sciences, Macquarie University, Sydney, Australia
| | - Stuart L Graham
- Department of Clinical Medicine, Macquarie University, Sydney, Australia
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Morse PT, Goebel DJ, Wan J, Tuck S, Hakim L, Hüttemann CL, Malek MH, Lee I, Sanderson TH, Hüttemann M. Cytochrome c oxidase-modulatory near-infrared light penetration into the human brain: Implications for the noninvasive treatment of ischemia/reperfusion injury. IUBMB Life 2020; 73:554-567. [PMID: 33166061 DOI: 10.1002/iub.2405] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/05/2020] [Accepted: 10/23/2020] [Indexed: 11/10/2022]
Abstract
Near-infrared light (IRL) has been evaluated as a therapeutic for a variety of pathological conditions, including ischemia/reperfusion injury of the brain, which can be caused by an ischemic stroke or cardiac arrest. Strategies have focused on modulating the activity of mitochondrial electron transport chain (ETC) enzyme cytochrome c oxidase (COX), which has copper centers that broadly absorb IRL between 700 and 1,000 nm. We have recently identified specific COX-inhibitory IRL wavelengths that are profoundly neuroprotective in rodent models of brain ischemia/reperfusion through the following mechanism: COX inhibition by IRL limits mitochondrial membrane potential hyperpolarization during reperfusion, which otherwise causes reactive oxygen species (ROS) production and cell death. Prior to clinical application of IRL on humans, IRL penetration must be tested, which may be wavelength dependent. In the present study, four fresh (unfixed) cadavers and isolated cadaver tissues were used to examine the transmission of infrared light through human biological tissues. We conclude that the transmission of 750 and 940 nm IRL through 4 cm of cadaver head supports the viability of IRL to treat human brain ischemia/reperfusion injury and is similar for skin with different skin pigmentation. We discuss experimental difficulties of working with fresh cadavers and strategies to overcome them as a guide for future studies.
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Affiliation(s)
- Paul T Morse
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA
| | - Dennis J Goebel
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University, Detroit, Michigan, USA
| | - Junmei Wan
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA
| | - Samuel Tuck
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA.,Department of Emergency Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Lara Hakim
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA
| | - Charlotte L Hüttemann
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA
| | - Moh H Malek
- Department of Health Care Sciences, Eugene Applebaum College of Pharmacy & Health Sciences, Wayne State University, Detroit, Michigan, USA
| | - Icksoo Lee
- College of Medicine, Dankook University, Cheonan-si, Republic of Korea
| | - Thomas H Sanderson
- Department of Emergency Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Maik Hüttemann
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA.,Department of Biochemistry, Microbiology and Immunology, Wayne State University, Detroit, Michigan, USA
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48
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Rezinciuc S, Bezavada L, Bahadoran A, Duan S, Wang R, Lopez-Ferrer D, Finkelstein D, McGargill MA, Green DR, Pasa-Tolic L, Smallwood HS. Dynamic metabolic reprogramming in dendritic cells: An early response to influenza infection that is essential for effector function. PLoS Pathog 2020; 16:e1008957. [PMID: 33104753 PMCID: PMC7707590 DOI: 10.1371/journal.ppat.1008957] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/01/2020] [Accepted: 09/03/2020] [Indexed: 01/19/2023] Open
Abstract
Infection with the influenza virus triggers an innate immune response that initiates the adaptive response to halt viral replication and spread. However, the metabolic response fueling the molecular mechanisms underlying changes in innate immune cell homeostasis remain undefined. Although influenza increases parasitized cell metabolism, it does not productively replicate in dendritic cells. To dissect these mechanisms, we compared the metabolism of dendritic cells to that of those infected with active and inactive influenza A virus and those treated with toll-like receptor agonists. Using quantitative mass spectrometry, pulse chase substrate utilization assays and metabolic flux measurements, we found global metabolic changes in dendritic cells 17 hours post infection, including significant changes in carbon commitment via glycolysis and glutaminolysis, as well as mitochondrial respiration. Influenza infection of dendritic cells led to a metabolic phenotype distinct from that induced by TLR agonists, with significant resilience in terms of metabolic plasticity. We identified c-Myc as one transcription factor modulating this response. Restriction of c-Myc activity or mitochondrial substrates significantly changed the immune functions of dendritic cells, such as reducing motility and T cell activation. Transcriptome analysis of inflammatory dendritic cells isolated following influenza infection showed similar metabolic reprogramming occurs in vivo. Thus, early in the infection process, dendritic cells respond with global metabolic restructuring, that is present in inflammatory lung dendritic cells after infection, and this is important for effector function. These findings suggest metabolic switching in dendritic cells plays a vital role in initiating the immune response to influenza infection. Dendritic cells are critical in mounting an effective immune response to influenza infection by initiating the immune response to influenza and activating the adaptive response to mediate viral clearance and manifest immune memory for protection against subsequent infections. We found dendritic cells undergo a profound metabolic shift after infection. They alter the concentration and location of hundreds of proteins, including c-Myc, facilitating a shift to a highly glycolytic phenotype that is also flexible in terms of fueling respiration. Nonetheless, we found limiting access to specific metabolic pathways or substrates diminished key immune functions. We previously described an immediate, fixed hypermetabolic state in infected respiratory epithelial cells. Here we present data indicating the metabolic response of dendritic cells is increased yet flexible, distinct from what we previously showed for epithelial cells. Additionally, we demonstrate dendritic cells tailor their metabolic response to the pathogen or TLR stimulus. This metabolic reprogramming occurs rapidly in vitro and is sustained in inflammatory dendritic cells in vivo for at least 9 days following influenza infection. These studies introduce the possibility of modulating the immune response to viral infection using customized metabolic therapy to enhance or diminish the function of specific cells.
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Affiliation(s)
- Svetlana Rezinciuc
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Lavanya Bezavada
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Azadeh Bahadoran
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Susu Duan
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Ruoning Wang
- Center for Childhood Cancer and Blood Disease, The Research Institute at Nationwide Children's Hospital, The Ohio State University School of Medicine, Columbus, Ohio, United States of America
| | - Daniel Lopez-Ferrer
- Chromatography and Mass Spectrometry Division, Thermo Fisher Scientific, CA, United States of America
| | - David Finkelstein
- Department of Computational Biology, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Maureen A. McGargill
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Douglas R. Green
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Ljiljana Pasa-Tolic
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington, United States of America
| | - Heather S. Smallwood
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
- * E-mail:
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49
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Kim NH, Sung NJ, Youn HS, Park SA. Gremlin-1 activates Akt/STAT3 signaling, which increases the glycolysis rate in breast cancer cells. Biochem Biophys Res Commun 2020; 533:1378-1384. [PMID: 33097188 DOI: 10.1016/j.bbrc.2020.10.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 10/10/2020] [Indexed: 01/10/2023]
Abstract
Gremlin-1 (GREM1), one of the antagonists of bone morphogenetic proteins (BMPs), has recently been reported to be overexpressed in a variety of cancers including breast cancer. GREM1 is involved in tumor promotion, but little is known about its role in the glycolysis of cancer cells. In this study, we investigated the role of GREM1 in glycolysis of breast cancer cells and its underlying molecular mechanisms. We first observed that glucose uptake and lactate production were increased in GREM1-overexpressing breast cancer cells. GREM1 increased the expression of hexokinase-2 (HK2), which catalyzes the phosphorylation of glucose, the first step in glycolysis. In addition, GREM1 activated STAT3 transcription factor through the ROS-Akt signaling pathway. The ROS-Akt-STAT3 axis activated by GREM1 was involved in promoting glucose uptake by increasing the expression of HK2 in breast cancer cells. Therefore, our study suggested a new mechanism by which GREM1 is involved in breast cancer promotion by increasing glycolysis in breast cancer cells.
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Affiliation(s)
- Na Hui Kim
- Department of ICT Environmental Health System, Graduate School, Soonchunhyang University, Asan-si, 31538, Republic of Korea
| | - Nam Ji Sung
- Department of ICT Environmental Health System, Graduate School, Soonchunhyang University, Asan-si, 31538, Republic of Korea
| | - Hyung-Sun Youn
- Department of ICT Environmental Health System, Graduate School, Soonchunhyang University, Asan-si, 31538, Republic of Korea; Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan-si, 31538, Republic of Korea
| | - Sin-Aye Park
- Department of ICT Environmental Health System, Graduate School, Soonchunhyang University, Asan-si, 31538, Republic of Korea; Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan-si, 31538, Republic of Korea.
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50
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Choi SY, Lee JH, Chung AY, Jo Y, Shin JH, Park HC, Kim H, Lopez-Gonzalez R, Ryu JR, Sun W. Prevention of mitochondrial impairment by inhibition of protein phosphatase 1 activity in amyotrophic lateral sclerosis. Cell Death Dis 2020; 11:888. [PMID: 33087694 PMCID: PMC7578657 DOI: 10.1038/s41419-020-03102-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 12/11/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease caused by progressive loss of motor neurons (MNs) and subsequent muscle weakness. These pathological features are associated with numerous cellular changes, including alteration in mitochondrial morphology and function. However, the molecular mechanisms associating mitochondrial structure with ALS pathology are poorly understood. In this study, we found that Dynamin-related protein 1 (Drp1) was dephosphorylated in several ALS models, including those with SOD1 and TDP-43 mutations, and the dephosphorylation was mediated by the pathological induction of protein phosphatase 1 (PP1) activity in these models. Suppression of the PP1-Drp1 cascade effectively prevented ALS-related symptoms, including mitochondrial fragmentation, mitochondrial complex I impairment, axonal degeneration, and cell death, in primary neuronal culture models, iPSC-derived human MNs, and zebrafish models in vivo. These results suggest that modulation of PP1-Drp1 activity may be a therapeutic target for multiple pathological features of ALS.
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Affiliation(s)
- So Yoen Choi
- Department of Anatomy, Korea University College of Medicine, Brain Korea 21 plus, Seoul, 02841, Republic of Korea
- Department of Neurology, University of Massachusetts Medical school, Worcester, MA, USA
| | - Ju-Hyun Lee
- Department of Anatomy, Korea University College of Medicine, Brain Korea 21 plus, Seoul, 02841, Republic of Korea
| | - Ah-Young Chung
- Graduate School of Medicine, Korea University, Ansan, Gyeonggido, Republic of Korea
| | - Youhwa Jo
- Department of Anatomy, Korea University College of Medicine, Brain Korea 21 plus, Seoul, 02841, Republic of Korea
| | - Joo-Ho Shin
- Division of Pharmacology, Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Gyeonggi-do, 440-746, Republic of Korea
| | - Hae-Chul Park
- Graduate School of Medicine, Korea University, Ansan, Gyeonggido, Republic of Korea
| | - Hyun Kim
- Department of Anatomy, Korea University College of Medicine, Brain Korea 21 plus, Seoul, 02841, Republic of Korea
| | | | - Jae Ryun Ryu
- Department of Anatomy, Korea University College of Medicine, Brain Korea 21 plus, Seoul, 02841, Republic of Korea
| | - Woong Sun
- Department of Anatomy, Korea University College of Medicine, Brain Korea 21 plus, Seoul, 02841, Republic of Korea.
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