1
|
Bhat SA, Vasi Z, Jiang L, Selvaraj S, Ferguson R, Salarvand S, Gudur A, Adhikari R, Castillo V, Ismail H, Dhabaria A, Ueberheide B, Kuchay S. Geranylgeranylated SCF FBXO10 regulates selective outer mitochondrial membrane proteostasis and function. Cell Rep 2024; 43:114783. [PMID: 39306844 DOI: 10.1016/j.celrep.2024.114783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 07/21/2024] [Accepted: 09/05/2024] [Indexed: 09/25/2024] Open
Abstract
Compartment-specific cellular membrane protein turnover is not well understood. We show that FBXO10, the interchangeable component of the cullin-RING-ligase 1 complex, undergoes lipid modification with geranylgeranyl isoprenoid at cysteine953, facilitating its dynamic trafficking to the outer mitochondrial membrane (OMM). FBXO10 polypeptide lacks a canonical mitochondrial targeting sequence (MTS); instead, its geranylgeranylation at C953 and interaction with two cytosolic factors, cytosolic factor-like δ subunit of type 6 phosphodiesterase (PDE6δ; a prenyl-group-binding protein) and heat shock protein 90 (HSP90; a chaperone), orchestrate specific OMM targeting of prenyl-FBXO10. The FBXO10(C953S) mutant redistributes away from the OMM, impairs mitochondrial ATP production and membrane potential, and increases fragmentation. Phosphoglycerate mutase-5 (PGAM5) was identified as a potential substrate of FBXO10 at the OMM using comparative quantitative proteomics of enriched mitochondria. FBXO10 loss or expression of prenylation-deficient FBXO10(C953S) inhibited PGAM5 degradation, disrupted mitochondrial homeostasis, and impaired myogenic differentiation of human induced pluripotent stem cells (iPSCs) and murine myoblasts. Our studies identify a mechanism for FBXO10-mediated regulation of selective mitochondrial proteostasis potentially amenable to therapeutic intervention.
Collapse
Affiliation(s)
- Sameer Ahmed Bhat
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB 1252, Chicago, IL 60607, USA
| | - Zahra Vasi
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB 1252, Chicago, IL 60607, USA
| | - Liping Jiang
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB 1252, Chicago, IL 60607, USA
| | - Shruthi Selvaraj
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB 1252, Chicago, IL 60607, USA
| | - Rachel Ferguson
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB 1252, Chicago, IL 60607, USA
| | - Sanaz Salarvand
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB 1252, Chicago, IL 60607, USA
| | - Anish Gudur
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB 1252, Chicago, IL 60607, USA
| | - Ritika Adhikari
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB 1252, Chicago, IL 60607, USA
| | - Veronica Castillo
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB 1252, Chicago, IL 60607, USA
| | - Hagar Ismail
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB 1252, Chicago, IL 60607, USA
| | - Avantika Dhabaria
- Department of Biochemistry and Molecular Pharmacology, New York University Langone Medical Center, New York, NY 10013, USA
| | - Beatrix Ueberheide
- Department of Biochemistry and Molecular Pharmacology, New York University Langone Medical Center, New York, NY 10013, USA
| | - Shafi Kuchay
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB 1252, Chicago, IL 60607, USA; Cancer Center, University of Illinois at Chicago, Chicago, IL, USA.
| |
Collapse
|
2
|
Li A, Qin Y, Gong G. The Changes of Mitochondria during Aging and Regeneration. Adv Biol (Weinh) 2024:e2300445. [PMID: 38979843 DOI: 10.1002/adbi.202300445] [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: 12/04/2023] [Revised: 05/30/2024] [Indexed: 07/10/2024]
Abstract
Aging and regeneration are opposite cellular processes. Aging refers to progressive dysfunction in most cells and tissues, and regeneration refers to the replacement of damaged or dysfunctional cells or tissues with existing adult or somatic stem cells. Various studies have shown that aging is accompanied by decreased regenerative abilities, indicating a link between them. The performance of any cellular process needs to be supported by the energy that is majorly produced by mitochondria. Thus, mitochondria may be a link between aging and regeneration. It should be interesting to discuss how mitochondria behave during aging and regeneration. The changes of mitochondria in aging and regeneration discussed in this review can provide a timely and necessary study of the causal roles of mitochondrial homeostasis in longevity and health.
Collapse
Affiliation(s)
- Anqi Li
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| | - Yuan Qin
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Guohua Gong
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China
| |
Collapse
|
3
|
Yu Y, Wang G, Liu Y, Meng Z. Potential application of traditional Chinese medicine in age-related macular degeneration-focusing on mitophagy. Front Pharmacol 2024; 15:1410998. [PMID: 38828456 PMCID: PMC11140084 DOI: 10.3389/fphar.2024.1410998] [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: 04/02/2024] [Accepted: 04/30/2024] [Indexed: 06/05/2024] Open
Abstract
Retinal pigment epithelial cell and neuroretinal damage in age-related macular degeneration (AMD) can lead to serious visual impairments and blindness. Studies have shown that mitophagy, a highly specialized cellular degradation system, is implicated in the pathogenesis of AMD. Mitophagy selectively eliminates impaired or non-functioning mitochondria via several pathways, such as the phosphatase and tensin homolog-induced kinase 1/Parkin, BCL2-interacting protein 3 and NIP3-like protein X, FUN14 domain-containing 1, and AMP-activated protein kinase pathways. This has a major impact on the maintenance of mitochondrial homeostasis. Therefore, the regulation of mitophagy could be a promising therapeutic strategy for AMD. Traditional Chinese medicine (TCM) uses natural products that could potentially prevent and treat various diseases, such as AMD. This review aims to summarize recent findings on mitophagy regulation pathways and the latest progress in AMD treatment targeting mitophagy, emphasizing methods involving TCM.
Collapse
Affiliation(s)
- Yujia Yu
- First Clinical Medical School, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Gaofeng Wang
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong Province Hospital of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Yong Liu
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong Province Hospital of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Zhaoru Meng
- School of Engineering, The Hong Kong University of Science and Technology, Kowloon, Hong Kong SAR, China
| |
Collapse
|
4
|
Goyer ML, Desaulniers-Langevin C, Sonn A, Mansour Nehmo G, Lisi V, Benabdallah B, Raynal NJM, Beauséjour C. Induced Pluripotent Stem Cell-Derived Fibroblasts Efficiently Engage Senescence Pathways but Show Increased Sensitivity to Stress Inducers. Cells 2024; 13:849. [PMID: 38786071 PMCID: PMC11119907 DOI: 10.3390/cells13100849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/10/2024] [Accepted: 05/13/2024] [Indexed: 05/25/2024] Open
Abstract
The risk of aberrant growth of induced pluripotent stem cell (iPSC)-derived cells in response to DNA damage is a potential concern as the tumor suppressor genes TP53 and CDKN2A are transiently inactivated during reprogramming. Herein, we evaluate the integrity of cellular senescence pathways and DNA double-strand break (DSB) repair in Sendai virus reprogrammed iPSC-derived human fibroblasts (i-HF) compared to their parental skin fibroblasts (HF). Using transcriptomics analysis and a variety of functional assays, we show that the capacity of i-HF to enter senescence and repair DSB is not compromised after damage induced by ionizing radiation (IR) or the overexpression of H-RASV12. Still, i-HF lines are transcriptionally different from their parental lines, showing enhanced metabolic activity and higher expression of p53-related effector genes. As a result, i-HF lines generally exhibit increased sensitivity to various stresses, have an elevated senescence-associated secretory phenotype (SASP), and cannot be immortalized unless p53 expression is knocked down. In conclusion, while our results suggest that i-HF are not at a greater risk of transformation, their overall hyperactivation of senescence pathways may impede their function as a cell therapy product.
Collapse
Affiliation(s)
- Marie-Lyn Goyer
- Centre de Recherche du CHU Sainte-Justine, 3175 Côte Sainte-Catherine, Montréal, QC H3T 1C5, Canada; (M.-L.G.); (C.D.-L.); (A.S.); (G.M.N.); (V.L.); (B.B.); (N.J.-M.R.)
- Département de Pharmacologie et Physiologie, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Cynthia Desaulniers-Langevin
- Centre de Recherche du CHU Sainte-Justine, 3175 Côte Sainte-Catherine, Montréal, QC H3T 1C5, Canada; (M.-L.G.); (C.D.-L.); (A.S.); (G.M.N.); (V.L.); (B.B.); (N.J.-M.R.)
- Département de Pharmacologie et Physiologie, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Anthony Sonn
- Centre de Recherche du CHU Sainte-Justine, 3175 Côte Sainte-Catherine, Montréal, QC H3T 1C5, Canada; (M.-L.G.); (C.D.-L.); (A.S.); (G.M.N.); (V.L.); (B.B.); (N.J.-M.R.)
- Département de Pharmacologie et Physiologie, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Georgio Mansour Nehmo
- Centre de Recherche du CHU Sainte-Justine, 3175 Côte Sainte-Catherine, Montréal, QC H3T 1C5, Canada; (M.-L.G.); (C.D.-L.); (A.S.); (G.M.N.); (V.L.); (B.B.); (N.J.-M.R.)
- Département de Pharmacologie et Physiologie, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Véronique Lisi
- Centre de Recherche du CHU Sainte-Justine, 3175 Côte Sainte-Catherine, Montréal, QC H3T 1C5, Canada; (M.-L.G.); (C.D.-L.); (A.S.); (G.M.N.); (V.L.); (B.B.); (N.J.-M.R.)
| | - Basma Benabdallah
- Centre de Recherche du CHU Sainte-Justine, 3175 Côte Sainte-Catherine, Montréal, QC H3T 1C5, Canada; (M.-L.G.); (C.D.-L.); (A.S.); (G.M.N.); (V.L.); (B.B.); (N.J.-M.R.)
| | - Noël J.-M. Raynal
- Centre de Recherche du CHU Sainte-Justine, 3175 Côte Sainte-Catherine, Montréal, QC H3T 1C5, Canada; (M.-L.G.); (C.D.-L.); (A.S.); (G.M.N.); (V.L.); (B.B.); (N.J.-M.R.)
- Département de Pharmacologie et Physiologie, Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Christian Beauséjour
- Centre de Recherche du CHU Sainte-Justine, 3175 Côte Sainte-Catherine, Montréal, QC H3T 1C5, Canada; (M.-L.G.); (C.D.-L.); (A.S.); (G.M.N.); (V.L.); (B.B.); (N.J.-M.R.)
- Département de Pharmacologie et Physiologie, Université de Montréal, Montréal, QC H3T 1J4, Canada
| |
Collapse
|
5
|
Bhat SA, Vasi Z, Jiang L, Selvaraj S, Ferguson R, Gudur A, Ismail H, Adhikari R, Dhabaria A, Ueberheide B, Kuchay S. Geranylgeranylated-SCF FBXO10 Regulates Selective Outer Mitochondrial Membrane Proteostasis and Function. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.16.589745. [PMID: 38659932 PMCID: PMC11042265 DOI: 10.1101/2024.04.16.589745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
E3-ubiquitin ligases (E3s) are main components of the ubiquitin-proteasome system (UPS), as they determine substrate specificity in response to internal and external cues to regulate protein homeostasis. However, the regulation of membrane protein ubiquitination by E3s within distinct cell membrane compartments or organelles is not well understood. We show that FBXO10, the interchangeable component of the SKP1/CUL1/F-box ubiquitin ligase complex (SCF-E3), undergoes lipid-modification with geranylgeranyl isoprenoid at Cysteine953 (C953), facilitating its dynamic trafficking to the outer mitochondrial membrane (OMM). FBXO10 polypeptide does not contain a canonical mitochondrial targeting sequence (MTS); instead, its geranylgeranylation at C953 and the interaction with two cytosolic factors, PDE6δ (a prenyl group-binding protein), and HSP90 (a mitochondrial chaperone) orchestrate specific OMM targeting of prenyl-FBXO10 across diverse membrane compartments. The geranylgeranylation-deficient FBXO10(C953S) mutant redistributes away from the OMM, leading to impaired mitochondrial ATP production, decreased mitochondrial membrane potential, and increased mitochondrial fragmentation. Phosphoglycerate mutase 5 (PGAM5) was identified as a potential substrate of FBXO10 at the OMM using comparative quantitative mass spectrometry analyses of enriched mitochondria (LFQ-MS/MS), leveraging the redistribution of FBXO10(C953S). FBXO10, but not FBXO10(C953S), promoted polyubiquitylation and degradation of PGAM5. Examination of the role of this pathway in a physiological context revealed that the loss of FBXO10 or expression of prenylation-deficient-FBXO10(C953S) inhibited PGAM5 degradation, disrupted mitochondrial homeostasis, and impaired myogenic differentiation of human iPSCs and murine myoblasts. Our studies identify a mechanism for selective E3-ligase mediated regulation of mitochondrial membrane proteostasis and metabolic health, potentially amenable to therapeutic intervention.
Collapse
Affiliation(s)
- Sameer Ahmed Bhat
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB #1252, Chicago, IL 60607, USA
| | - Zahra Vasi
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB #1252, Chicago, IL 60607, USA
| | - Liping Jiang
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB #1252, Chicago, IL 60607, USA
| | - Shruthi Selvaraj
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB #1252, Chicago, IL 60607, USA
| | - Rachel Ferguson
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB #1252, Chicago, IL 60607, USA
| | - Anish Gudur
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB #1252, Chicago, IL 60607, USA
| | - Hagar Ismail
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB #1252, Chicago, IL 60607, USA
| | - Ritika Adhikari
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB #1252, Chicago, IL 60607, USA
| | - Avantika Dhabaria
- Department of Biochemistry and Molecular Pharmacology, New York University Langone Medical Center, New York, NY 10013, USA
| | - Beatrix Ueberheide
- Department of Biochemistry and Molecular Pharmacology, New York University Langone Medical Center, New York, NY 10013, USA
| | - ShaFi Kuchay
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, MBRB #1252, Chicago, IL 60607, USA
- Cancer Center, University of Illinois at Chicago
- Lead Contact
| |
Collapse
|
6
|
Zimmermann A, Madeo F, Diwan A, Sadoshima J, Sedej S, Kroemer G, Abdellatif M. Metabolic control of mitophagy. Eur J Clin Invest 2024; 54:e14138. [PMID: 38041247 DOI: 10.1111/eci.14138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/09/2023] [Accepted: 11/20/2023] [Indexed: 12/03/2023]
Abstract
Mitochondrial dysfunction is a major hallmark of ageing and related chronic disorders. Controlled removal of damaged mitochondria by the autophagic machinery, a process known as mitophagy, is vital for mitochondrial homeostasis and cell survival. The central role of mitochondria in cellular metabolism places mitochondrial removal at the interface of key metabolic pathways affecting the biosynthesis or catabolism of acetyl-coenzyme A, nicotinamide adenine dinucleotide, polyamines, as well as fatty acids and amino acids. Molecular switches that integrate the metabolic status of the cell, like AMP-dependent protein kinase, protein kinase A, mechanistic target of rapamycin and sirtuins, have also emerged as important regulators of mitophagy. In this review, we discuss how metabolic regulation intersects with mitophagy. We place special emphasis on the metabolic regulatory circuits that may be therapeutically targeted to delay ageing and mitochondria-associated chronic diseases. Moreover, we identify outstanding knowledge gaps, such as the ill-defined distinction between basal and damage-induced mitophagy, which must be resolved to boost progress in this area.
Collapse
Affiliation(s)
- Andreas Zimmermann
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
- Field of Excellence BioHealth-University of Graz, Graz, Austria
| | - Frank Madeo
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
- Field of Excellence BioHealth-University of Graz, Graz, Austria
- BioTechMed Graz, Graz, Austria
| | - Abhinav Diwan
- Division of Cardiology and Center for Cardiovascular Research, Washington University School of Medicine, and John Cochran Veterans Affairs Medical Center, St. Louis, Missouri, USA
| | - Junichi Sadoshima
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Simon Sedej
- BioTechMed Graz, Graz, Austria
- Department of Cardiology, Medical University of Graz, Graz, Austria
- Faculty of Medicine, Institute of Physiology, University of Maribor, Maribor, Slovenia
| | - Guido Kroemer
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, INSERM U1138, Institut Universitaire de France, Paris, France
- Department of Biology, Hôpital Européen Georges Pompidou, Institut du Cancer Paris CARPEM, Paris, France
| | - Mahmoud Abdellatif
- BioTechMed Graz, Graz, Austria
- Department of Cardiology, Medical University of Graz, Graz, Austria
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, INSERM U1138, Institut Universitaire de France, Paris, France
| |
Collapse
|
7
|
Um JH, Lee KM, Kim YY, Lee DY, Kim E, Kim DH, Yun J. Berberine Induces Mitophagy through Adenosine Monophosphate-Activated Protein Kinase and Ameliorates Mitochondrial Dysfunction in PINK1 Knockout Mouse Embryonic Fibroblasts. Int J Mol Sci 2023; 25:219. [PMID: 38203389 PMCID: PMC10779002 DOI: 10.3390/ijms25010219] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Mitophagy stimulation has been shown to have a therapeutic effect on various neurodegenerative diseases. However, nontoxic mitophagy inducers are still very limited. In this study, we found that the natural alkaloid berberine exhibited mitophagy stimulation activity in various human cells. Berberine did not interfere with mitochondrial function, unlike the well-known mitophagy inducer carbonyl cyanide m-chlorophenyl hydrazone (CCCP), and subsequently induced mitochondrial biogenesis. Berberine treatment induced the activation of adenosine monophosphate-activated protein kinase (AMPK), and the AMPK inhibitor compound C abolished berberine-induced mitophagy, suggesting that AMPK activation is essential for berberine-induced mitophagy. Notably, berberine treatment reversed mitochondrial dysfunction in PINK1 knockout mouse embryonic fibroblasts. Our results suggest that berberine is a mitophagy-specific inducer and can be used as a therapeutic treatment for neurodegenerative diseases, including Parkinson's disease, and that natural alkaloids are potential sources of mitophagy inducers.
Collapse
Affiliation(s)
- Jee-Hyun Um
- Department of Biochemistry, College of Medicine, Dong-A University, Busan 49201, Republic of Korea; (J.-H.U.); (K.-M.L.); (Y.-Y.K.)
- Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan 49201, Republic of Korea
| | - Kang-Min Lee
- Department of Biochemistry, College of Medicine, Dong-A University, Busan 49201, Republic of Korea; (J.-H.U.); (K.-M.L.); (Y.-Y.K.)
- Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan 49201, Republic of Korea
| | - Young-Yeon Kim
- Department of Biochemistry, College of Medicine, Dong-A University, Busan 49201, Republic of Korea; (J.-H.U.); (K.-M.L.); (Y.-Y.K.)
- Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan 49201, Republic of Korea
| | - Da-Ye Lee
- Department of Biochemistry, College of Medicine, Dong-A University, Busan 49201, Republic of Korea; (J.-H.U.); (K.-M.L.); (Y.-Y.K.)
- Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan 49201, Republic of Korea
| | - Eunmi Kim
- Department of Biochemistry, College of Medicine, Dong-A University, Busan 49201, Republic of Korea; (J.-H.U.); (K.-M.L.); (Y.-Y.K.)
- Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan 49201, Republic of Korea
| | - Dong-Hyun Kim
- Department of Pharmacology, School of Medicine, Konkuk University, Seoul 05029, Republic of Korea;
- Department of Advanced Translational Medicine, School of Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Jeanho Yun
- Department of Biochemistry, College of Medicine, Dong-A University, Busan 49201, Republic of Korea; (J.-H.U.); (K.-M.L.); (Y.-Y.K.)
- Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan 49201, Republic of Korea
| |
Collapse
|
8
|
Jasra IT, Cuesta-Gomez N, Verhoeff K, Marfil-Garza BA, Dadheech N, Shapiro AMJ. Mitochondrial regulation in human pluripotent stem cells during reprogramming and β cell differentiation. Front Endocrinol (Lausanne) 2023; 14:1236472. [PMID: 37929027 PMCID: PMC10623316 DOI: 10.3389/fendo.2023.1236472] [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: 06/07/2023] [Accepted: 10/06/2023] [Indexed: 11/07/2023] Open
Abstract
Mitochondria are the powerhouse of the cell and dynamically control fundamental biological processes including cell reprogramming, pluripotency, and lineage specification. Although remarkable progress in induced pluripotent stem cell (iPSC)-derived cell therapies has been made, very little is known about the role of mitochondria and the mechanisms involved in somatic cell reprogramming into iPSC and directed reprogramming of iPSCs in terminally differentiated cells. Reprogramming requires changes in cellular characteristics, genomic and epigenetic regulation, as well as major mitochondrial metabolic changes to sustain iPSC self-renewal, pluripotency, and proliferation. Differentiation of autologous iPSC into terminally differentiated β-like cells requires further metabolic adaptation. Many studies have characterized these alterations in signaling pathways required for the generation and differentiation of iPSC; however, very little is known regarding the metabolic shifts that govern pluripotency transition to tissue-specific lineage differentiation. Understanding such metabolic transitions and how to modulate them is essential for the optimization of differentiation processes to ensure safe iPSC-derived cell therapies. In this review, we summarize the current understanding of mitochondrial metabolism during somatic cell reprogramming to iPSCs and the metabolic shift that occurs during directed differentiation into pancreatic β-like cells.
Collapse
Affiliation(s)
- Ila Tewari Jasra
- Clinical Islet Transplant Program, Department of Surgery, Alberta Diabetes Institute, University of Alberta, Edmonton, AB, Canada
| | - Nerea Cuesta-Gomez
- Clinical Islet Transplant Program, Department of Surgery, Alberta Diabetes Institute, University of Alberta, Edmonton, AB, Canada
| | - Kevin Verhoeff
- Clinical Islet Transplant Program, Department of Surgery, Alberta Diabetes Institute, University of Alberta, Edmonton, AB, Canada
| | - Braulio A. Marfil-Garza
- Clinical Islet Transplant Program, Department of Surgery, Alberta Diabetes Institute, University of Alberta, Edmonton, AB, Canada
- Tecnologico de Monterrey, The Institute for Obesity Research, Monterrey, Nuevo Leon, Mexico
| | - Nidheesh Dadheech
- Clinical Islet Transplant Program, Department of Surgery, Alberta Diabetes Institute, University of Alberta, Edmonton, AB, Canada
| | - A. M. James Shapiro
- Clinical Islet Transplant Program, Department of Surgery, Alberta Diabetes Institute, University of Alberta, Edmonton, AB, Canada
| |
Collapse
|
9
|
Godtliebsen G, Larsen KB, Bhujabal Z, Opstad IS, Nager M, Punnakkal AR, Kalstad TB, Olsen R, Lund T, Prasad DK, Agarwal K, Myrmel T, Birgisdottir AB. High-resolution visualization and assessment of basal and OXPHOS-induced mitophagy in H9c2 cardiomyoblasts. Autophagy 2023; 19:2769-2788. [PMID: 37405374 PMCID: PMC10472865 DOI: 10.1080/15548627.2023.2230837] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 06/09/2023] [Accepted: 06/22/2023] [Indexed: 07/06/2023] Open
Abstract
Mitochondria are susceptible to damage resulting from their activity as energy providers. Damaged mitochondria can cause harm to the cell and thus mitochondria are subjected to elaborate quality-control mechanisms including elimination via lysosomal degradation in a process termed mitophagy. Basal mitophagy is a house-keeping mechanism fine-tuning the number of mitochondria according to the metabolic state of the cell. However, the molecular mechanisms underlying basal mitophagy remain largely elusive. In this study, we visualized and assessed the level of mitophagy in H9c2 cardiomyoblasts at basal conditions and after OXPHOS induction by galactose adaptation. We used cells with a stable expression of a pH-sensitive fluorescent mitochondrial reporter and applied state-of-the-art imaging techniques and image analysis. Our data showed a significant increase in acidic mitochondria after galactose adaptation. Using a machine-learning approach we also demonstrated increased mitochondrial fragmentation by OXPHOS induction. Furthermore, super-resolution microscopy of live cells enabled capturing of mitochondrial fragments within lysosomes as well as dynamic transfer of mitochondrial contents to lysosomes. Applying correlative light and electron microscopy we revealed the ultrastructure of the acidic mitochondria confirming their proximity to the mitochondrial network, ER and lysosomes. Finally, exploiting siRNA knockdown strategy combined with flux perturbation with lysosomal inhibitors, we demonstrated the importance of both canonical as well as non-canonical autophagy mediators in lysosomal degradation of mitochondria after OXPHOS induction. Taken together, our high-resolution imaging approaches applied on H9c2 cells provide novel insights on mitophagy during physiologically relevant conditions. The implication of redundant underlying mechanisms highlights the fundamental importance of mitophagy.Abbreviations: ATG: autophagy related; ATG7: autophagy related 7; ATP: adenosine triphosphate; BafA1: bafilomycin A1; CLEM: correlative light and electron microscopy; EGFP: enhanced green fluorescent protein; MAP1LC3B: microtubule associated protein 1 light chain 3 beta; OXPHOS: oxidative phosphorylation; PepA: pepstatin A; PLA: proximity ligation assay; PRKN: parkin RBR E3 ubiquitin protein ligase; RAB5A: RAB5A, member RAS oncogene family; RAB7A: RAB7A, member RAS oncogene family; RAB9A: RAB9A, member RAS oncogene family; ROS: reactive oxygen species; SIM: structured illumination microscopy; siRNA: short interfering RNA; SYNJ2BP: synaptojanin 2 binding protein; TEM: transmission electron microscopy; TOMM20: translocase of outer mitochondrial membrane 20; ULK1: unc-51 like kinase 1.
Collapse
Affiliation(s)
- Gustav Godtliebsen
- Department of Clinical Medicine, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Kenneth Bowitz Larsen
- Department of Clinical Medicine, UiT-The Arctic University of Norway, Tromsø, Norway
- Department of Medical Biology, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Zambarlal Bhujabal
- Department of Clinical Medicine, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Ida S. Opstad
- Department of Physics and Technology, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Mireia Nager
- Division of Cardiothoracic and Respiratory Medicine, UiT-The Arctic University of Norway, Tromsø, Norway
| | | | - Trine B. Kalstad
- Division of Cardiothoracic and Respiratory Medicine, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Randi Olsen
- Department of Medical Biology, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Trine Lund
- Department of Medical Biology, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Dilip K. Prasad
- Department of Computer Science, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Krishna Agarwal
- Department of Physics and Technology, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Truls Myrmel
- Department of Clinical Medicine, UiT-The Arctic University of Norway, Tromsø, Norway
- Division of Cardiothoracic and Respiratory Medicine, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Asa Birna Birgisdottir
- Department of Clinical Medicine, UiT-The Arctic University of Norway, Tromsø, Norway
- Division of Cardiothoracic and Respiratory Medicine, UiT-The Arctic University of Norway, Tromsø, Norway
| |
Collapse
|
10
|
Kolahdouzmohammadi M, Kolahdouz-Mohammadi R, Tabatabaei SA, Franco B, Totonchi M. Revisiting the Role of Autophagy in Cardiac Differentiation: A Comprehensive Review of Interplay with Other Signaling Pathways. Genes (Basel) 2023; 14:1328. [PMID: 37510233 PMCID: PMC10378789 DOI: 10.3390/genes14071328] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/20/2023] [Accepted: 06/22/2023] [Indexed: 07/30/2023] Open
Abstract
Autophagy is a critical biological process in which cytoplasmic components are sequestered in autophagosomes and degraded in lysosomes. This highly conserved pathway controls intracellular recycling and is required for cellular homeostasis, as well as the correct functioning of a variety of cellular differentiation programs, including cardiomyocyte differentiation. By decreasing oxidative stress and promoting energy balance, autophagy is triggered during differentiation to carry out essential cellular remodeling, such as protein turnover and lysosomal degradation of organelles. When it comes to controlling cardiac differentiation, the crosstalk between autophagy and other signaling networks such as fibroblast growth factor (FGF), Wnt, Notch, and bone morphogenetic proteins (BMPs) is essential, yet the interaction between autophagy and epigenetic controls remains poorly understood. Numerous studies have shown that modulating autophagy and precisely regulating it can improve cardiac differentiation, which can serve as a viable strategy for generating mature cardiac cells. These findings suggest that autophagy should be studied further during cardiac differentiation. The purpose of this review article is not only to discuss the relationship between autophagy and other signaling pathways that are active during the differentiation of cardiomyocytes but also to highlight the importance of manipulating autophagy to produce fully mature cardiomyocytes, which is a tough challenge.
Collapse
Affiliation(s)
- Mina Kolahdouzmohammadi
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran P.O. Box 16635-148, Iran
| | - Roya Kolahdouz-Mohammadi
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran 1449614535, Iran
| | | | - Brunella Franco
- Telethon Institute of Genetics and Medicine (TIGEM), Via Campi Flegrei, 34, 80078 Pozzuoli, Italy
- Genomics and Experimental Medicine Program, Scuola Superiore Meridionale (SSM, School of Advanced Studies), 80138 Naples, Italy
- Medical Genetics, Department of Translational Medicine, University of Naples "Federico II", Via Sergio Pansini, 80131 Naples, Italy
| | - Mehdi Totonchi
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran P.O. Box 16635-148, Iran
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies (DiSTABiF), Università degli Studi della Campania "Luigi Vanvitelli", 81100 Caserta, Italy
| |
Collapse
|
11
|
Fanizza F, Boeri L, Donnaloja F, Perottoni S, Forloni G, Giordano C, Albani D. Development of an Induced Pluripotent Stem Cell-Based Liver-on-a-Chip Assessed with an Alzheimer's Disease Drug. ACS Biomater Sci Eng 2023. [PMID: 37318190 DOI: 10.1021/acsbiomaterials.3c00346] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Liver-related drug metabolism is a key aspect of pharmacokinetics and possible toxicity. From this perspective, the availability of advanced in vitro models for drug testing is still an open need, also to the end of reducing the burden of in vivo experiments. In this scenario, organ-on-a-chip is gaining attention as it couples a state-of-the art in vitro approach to the recapitulation of key in vivo physiological features such as fluidodynamics and a tri-dimensional cytoarchitecture. We implemented a novel liver-on-a-chip (LoC) device based on an innovative dynamic device (MINERVA 2.0) where functional hepatocytes (iHep) have been encapsulated into a 3D hydrogel matrix interfaced through a porous membrane with endothelial cells (iEndo)]. Both lines were derived from human-induced pluripotent stem cells (iPSCs), and the LoC was functionally assessed with donepezil, a drug approved for Alzheimer's disease therapy. The presence of iEndo and a 3D microenvironment enhanced the expression of liver-specific physiologic functions as in iHep, after 7 day perfusion, we noticed an increase of albumin, urea production, and cytochrome CYP3A4 expression compared to the iHep static culture. In particular, for donepezil kinetics, a computational fluid dynamic study conducted to assess the amount of donepezil diffused into the LoC indicated that the molecule should be able to pass through the iEndo and reach the target iHep construct. Then, we performed experiments of donepezil kinetics that confirmed the numerical simulations. Overall, our iPSC-based LoC reproduced the in vivo physiological microenvironment of the liver and was suitable for potential hepatotoxic screening studies.
Collapse
Affiliation(s)
- Francesca Fanizza
- Department of Chemistry, Materials and Chemical Engineering 'Giulio Natta', Politecnico di Milano, Milan 20133, Italy
| | - Lucia Boeri
- Department of Chemistry, Materials and Chemical Engineering 'Giulio Natta', Politecnico di Milano, Milan 20133, Italy
| | - Francesca Donnaloja
- Department of Chemistry, Materials and Chemical Engineering 'Giulio Natta', Politecnico di Milano, Milan 20133, Italy
| | - Simone Perottoni
- Department of Chemistry, Materials and Chemical Engineering 'Giulio Natta', Politecnico di Milano, Milan 20133, Italy
| | - Gianluigi Forloni
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan 20156, Italy
| | - Carmen Giordano
- Department of Chemistry, Materials and Chemical Engineering 'Giulio Natta', Politecnico di Milano, Milan 20133, Italy
| | - Diego Albani
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan 20156, Italy
| |
Collapse
|
12
|
Liang MZ, Lu TH, Chen L. Timely expression of PGAM5 and its cleavage control mitochondrial homeostasis during neurite re-growth after traumatic brain injury. Cell Biosci 2023; 13:96. [PMID: 37221611 DOI: 10.1186/s13578-023-01052-0] [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: 02/03/2023] [Accepted: 05/13/2023] [Indexed: 05/25/2023] Open
Abstract
BACKGROUND Patients suffered from severe traumatic brain injury (TBI) have twice the risk of developing into neurodegenerative diseases later in their life. Thus, early intervention is needed not only to treat TBI but also to reduce neurodegenerative diseases in the future. Physiological functions of neurons highly depend on mitochondria. Thus, when mitochondrial integrity is compromised by injury, neurons would initiate a cascade of events to maintain homeostasis of mitochondria. However, what protein senses mitochondrial dysfunction and how mitochondrial homeostasis is maintained during regeneration remains unclear. RESULTS We found that TBI-increased transcription of a mitochondrial protein, phosphoglycerate mutase 5 (PGAM5), during acute phase was via topological remodeling of a novel enhancer-promoter interaction. This up-regulated PGAM5 correlated with mitophagy, whereas presenilins-associated rhomboid-like protein (PARL)-dependent PGAM5 cleavage at a later stage of TBI enhanced mitochondrial transcription factor A (TFAM) expression and mitochondrial mass. To test whether PGAM5 cleavage and TFAM expression were sufficient for functional recovery, mitochondrial oxidative phosphorylation uncoupler carbonyl cyanide 4-(trifluoromethoxy) phenylhydrazone (FCCP) was used to uncouple electron transport chain and reduce mitochondrial function. As a result, FCCP triggered PGAM5 cleavage, TFAM expression and recovery of motor function deficits of CCI mice. CONCLUSIONS Findings from this study implicate that PGAM5 may act as a mitochondrial sensor for brain injury to activate its own transcription at acute phase, serving to remove damaged mitochondria through mitophagy. Subsequently, PGAM5 is cleaved by PARL, and TFAM expression is increased for mitochondrial biogenesis at a later stage after TBI. Taken together, this study concludes that timely regulation of PGAM5 expression and its own cleavage are required for neurite re-growth and functional recovery.
Collapse
Affiliation(s)
- Min-Zong Liang
- Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan
| | - Ting-Hsuan Lu
- Department of Medical Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Linyi Chen
- Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan.
- Department of Medical Science, National Tsing Hua University, Hsinchu, Taiwan.
| |
Collapse
|
13
|
Grieco JP, Compton SLE, Bano N, Brookover L, Nichenko AS, Drake JC, Schmelz EM. Mitochondrial plasticity supports proliferative outgrowth and invasion of ovarian cancer spheroids during adhesion. Front Oncol 2023; 12:1043670. [PMID: 36727073 PMCID: PMC9884807 DOI: 10.3389/fonc.2022.1043670] [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: 09/13/2022] [Accepted: 12/19/2022] [Indexed: 01/18/2023] Open
Abstract
Background Ovarian cancer cells aggregate during or after exfoliation from the primary tumor to form threedimensional spheroids. Spheroid formation provides a survival advantage during peritoneal dissemination in nutrient and oxygen-depleted conditions which is accompanied by a suppressed metabolic phenotype and fragmented mitochondria. Upon arrival to their metastatic sites, spheroids adhere to peritoneal organs and transition to a more epithelial phenotype to support outgrowth and invasion. In this study, we investigated the plasticity of mitochondrial morphology, dynamics, and function upon adhesion. Methods Using our slow-developing (MOSE-L) and fast-developing (MOSE-LTICv) ovarian cancer models, we mimicked adhesion and reoxygenation conditions by plating the spheroids onto tissue culture dishes and changing culture conditions from hypoxia and low glucose to normoxia with high glucose levels after adhesion. We used Western Blot, microscopy and Seahorse analyses to determine the plasticity of mitochondrial morphology and functions upon adhesion, and the impact on proliferation and invasion capacities. Results Independent of culture conditions, all spheroids adhered to and began to grow onto the culture plates. While the bulk of the spheroid was unresponsive, the mitochondrial morphology in the outgrowing cells was indistinguishable from cells growing in monolayers, indicating that mitochondrial fragmentation in spheroids was indeed reversible. This was accompanied by an increase in regulators of mitobiogenesis, PGC1a, mitochondrial mass, and respiration. Reoxygenation increased migration and invasion in both cell types but only the MOSE-L responded with increased proliferation to reoxygenation. The highly aggressive phenotype of the MOSE-LTICv was characterized by a relative independence of oxygen and the preservation of higher levels of proliferation, migration and invasion even in limiting culture conditions but a higher reliance on mitophagy. Further, the outgrowth in these aggressive cells relies mostly on proliferation while the MOSE-L cells both utilize proliferation and migration to achieve outgrowth. Suppression of proliferation with cycloheximide impeded aggregation, reduced outgrowth and invasion via repression of MMP2 expression and the flattening of the spheroids. Discussion Our studies indicate that the fragmentation of the mitochondria is reversible upon adhesion. The identification of regulatory signaling molecules and pathways of these key phenotypic alterations that occur during primary adhesion and invasion is critical for the identification of druggable targets for therapeutic intervention to prevent aggressive metastatic disease.
Collapse
Affiliation(s)
- Joseph P. Grieco
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA, United States
| | - Stephanie L. E. Compton
- Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA, United States
| | - Nazia Bano
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA, United States
| | - Lucy Brookover
- Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA, United States
| | - Anna S. Nichenko
- Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA, United States
| | - Joshua C. Drake
- Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA, United States
| | - Eva M. Schmelz
- Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA, United States,*Correspondence: Eva M. Schmelz,
| |
Collapse
|
14
|
Gajwani P, Rehman J. MitoSwap – Mitophagy partnered with compensatory mitochondrial biogenesis during stem cell differentiation. AUTOPHAGY REPORTS 2022; 1:210-213. [PMID: 37009490 PMCID: PMC10062436 DOI: 10.1080/27694127.2022.2071549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Differentiating stem cells must adapt their mitochondrial metabolism to fit the needs of the mature differentiated cell. In a recent study, we observed that during differentiation to an endothelial phenotype, pluripotent stem cell mitochondria are removed by mitophagy, triggering compensatory mitochondrial biogenesis to replenish the mitochondrial pool. We identified the mitochondrial phosphatase PGAM5 as the link between mitophagy and transcription of the mitochondrial biogenesis regulator PPARGC1A/PGC1α in the nucleus. Swapping of mitochondria through the coupled processes of mitophagy and mitochondrial biogenesis lead to enhanced metabolic reprogramming in the differentiated cell.
Collapse
Affiliation(s)
- Priyanka Gajwani
- Department of Pharmacology and Regenerative Medicine, University of Illinois, College of Medicine, Chicago, IL 60612
| | - Jalees Rehman
- Department of Pharmacology and Regenerative Medicine, University of Illinois, College of Medicine, Chicago, IL 60612
- Division of Cardiology, Department of Medicine, University of Illinois, College of Medicine, Chicago, IL 60612
- University of Illinois Cancer Center, Chicago, IL 60612
| |
Collapse
|