1
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Marino Y, Inferrera F, D'Amico R, Impellizzeri D, Cordaro M, Siracusa R, Gugliandolo E, Fusco R, Cuzzocrea S, Di Paola R. Role of mitochondrial dysfunction and biogenesis in fibromyalgia syndrome: Molecular mechanism in central nervous system. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167301. [PMID: 38878832 DOI: 10.1016/j.bbadis.2024.167301] [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: 03/05/2024] [Revised: 05/22/2024] [Accepted: 06/07/2024] [Indexed: 08/18/2024]
Abstract
A critical role for mitochondrial dysfunction has been shown in the pathogenesis of fibromyalgia. It is a chronic pain syndrome characterized by neuroinflammation and impaired oxidative balance in the central nervous system. Boswellia serrata (BS), a natural polyphenol, is a well-known able to influence the mitochondrial metabolism. The objective of this study was to evaluate the mitochondrial dysfunction and biogenesis in fibromyalgia and their modulation by BS. To induce the model reserpine (1 mg/Kg) was subcutaneously administered for three consecutive days and BS (100 mg/Kg) was given orally for twenty-one days. BS reduced pain like behaviors in reserpine-injected rats and the astrocytes activation in the dorsal horn of the spinal cord and prefrontal cortex that are recognized as key regions associated with the neuropathic pain. Vulnerability to neuroinflammation and impaired neuronal plasticity have been described as consequences of mitochondrial dysfunction. BS administration increased PGC-1α expression in the nucleus of spinal cord and brain tissues, promoting the expression of regulatory genes for mitochondrial biogenesis (NRF-1, Tfam and UCP2) and cellular antioxidant defence mechanisms (catalase, SOD2 and Prdx 3). According with these data BS reduced lipid peroxidation and the GSSG/GSH ratio and increased SOD activity in the same tissues. Our results also showed that BS administration mitigates cytochrome-c leakage by promoting mitochondrial function and supported the movement of PGC-1α protein into the nucleus restoring the quality control of mitochondria. Additionally, BS reduced Drp1 and Fis1, preventing both mitochondrial fission and cell death, and increased the expression of Mfn2 protein, facilitating mitochondrial fusion. Overall, our results showed important mitochondrial dysfunction in central nervous system in fibromyalgia syndrome and the role of BS in restoring mitochondrial dynamics.
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Affiliation(s)
- Ylenia Marino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy.
| | - Francesca Inferrera
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy.
| | - Ramona D'Amico
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy.
| | - Daniela Impellizzeri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy.
| | - Marika Cordaro
- Department of Biomedical, Dental and Morphological and Functional Imaging, University of Messina, 98125 Messina, Italy.
| | - Rosalba Siracusa
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy.
| | - Enrico Gugliandolo
- Department of Veterinary Science, University of Messina, 98168 Messina, Italy.
| | - Roberta Fusco
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy.
| | - Salvatore Cuzzocrea
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy.
| | - Rosanna Di Paola
- Department of Veterinary Science, University of Messina, 98168 Messina, Italy.
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2
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Lacombe A, Scorrano L. The interplay between mitochondrial dynamics and autophagy: From a key homeostatic mechanism to a driver of pathology. Semin Cell Dev Biol 2024; 161-162:1-19. [PMID: 38430721 DOI: 10.1016/j.semcdb.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 02/06/2024] [Accepted: 02/15/2024] [Indexed: 03/05/2024]
Abstract
The complex relationship between mitochondrial dynamics and autophagy illustrates how two cellular housekeeping processes are intimately linked, illuminating fundamental principles of cellular homeostasis and shedding light on disparate pathological conditions including several neurodegenerative disorders. Here we review the basic tenets of mitochondrial dynamics i.e., the concerted balance between fusion and fission of the organelle, and its interplay with macroautophagy and selective mitochondrial autophagy, also dubbed mitophagy, in the maintenance of mitochondrial quality control and ultimately in cell viability. We illustrate how conditions of altered mitochondrial dynamics reverberate on autophagy and vice versa. Finally, we illustrate how altered interplay between these two key cellular processes participates in the pathogenesis of human disorders affecting multiple organs and systems.
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Affiliation(s)
- Alice Lacombe
- Dept. of Biology, University of Padova, Padova, Italy
| | - Luca Scorrano
- Dept. of Biology, University of Padova, Padova, Italy; Veneto Institute of Molecular Medicine, Padova, Italy.
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3
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Marx N, Ritter N, Disse P, Seebohm G, Busch KB. Detailed analysis of Mdivi-1 effects on complex I and respiratory supercomplex assembly. Sci Rep 2024; 14:19673. [PMID: 39187541 PMCID: PMC11347648 DOI: 10.1038/s41598-024-69748-y] [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: 03/15/2024] [Accepted: 08/08/2024] [Indexed: 08/28/2024] Open
Abstract
Several human diseases, including cancer and neurodegeneration, are associated with excessive mitochondrial fragmentation. In this context, mitochondrial division inhibitor (Mdivi-1) has been tested as a therapeutic to block the fission-related protein dynamin-like protein-1 (Drp1). Recent studies suggest that Mdivi-1 interferes with mitochondrial bioenergetics and complex I function. Here we show that the molecular mechanism of Mdivi-1 is based on inhibition of complex I at the IQ site. This leads to the destabilization of complex I, impairs the assembly of N- and Q-respirasomes, and is associated with increased ROS production and reduced efficiency of ATP generation. Second, the calcium homeostasis of cells is impaired, which for example affects the electrical activity of neurons. Given the results presented here, a potential therapeutic application of Mdivi-1 is challenging because of its potential impact on synaptic activity. Similar to the Complex I inhibitor rotenone, Mdivi-1 may lead to neurodegenerative effects in the long term.
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Affiliation(s)
- Nico Marx
- Department of Biology, Institute of Integrative Cell Biology and Physiology (IIZP), University of Münster, Schloßplatz 5, 48149, Münster, Germany
| | - Nadine Ritter
- Department of Cardiovascular Medicine, Institute for Genetics of Heart Diseases (IfGH), University Hospital Münster, 48149, Münster, Germany
- Department of Drug Design and Pharmacology, University of Copenhagen, 2100, Copenhagen, Denmark
| | - Paul Disse
- Department of Cardiovascular Medicine, Institute for Genetics of Heart Diseases (IfGH), University Hospital Münster, 48149, Münster, Germany
| | - Guiscard Seebohm
- Department of Cardiovascular Medicine, Institute for Genetics of Heart Diseases (IfGH), University Hospital Münster, 48149, Münster, Germany
| | - Karin B Busch
- Department of Biology, Institute of Integrative Cell Biology and Physiology (IIZP), University of Münster, Schloßplatz 5, 48149, Münster, Germany.
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4
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Yang Z, Chan DC. Development of a Signal-integrating Reporter to Monitor Mitochondria-ER Contacts. ACS Synth Biol 2024. [PMID: 39162343 DOI: 10.1021/acssynbio.4c00098] [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: 08/21/2024]
Abstract
Mitochondria-endoplasmic reticulum contact sites (MERCS) serve as hotspots for important cellular processes, including calcium homeostasis, phospholipid homeostasis, mitochondria dynamics, and mitochondrial quality control. MERCS reporters based on complementation of green fluorescent proteins (GFP) fragments have been designed to visualize MERCS in real-time, but we find that they do not accurately respond to changes in MERCS content. Here, we utilize split LacZ complementing fragments to develop the first MERCS reporter system (termed SpLacZ-MERCS) that continuously integrates the MERCS information within a cell and generates a fluorescent output. Our system exhibits good organelle targeting, no artifactual tethering, and effective, dynamic tracking of the MERCS level in single cells. The SpLacZ-MERCS reporter was validated by drug treatments and genetic perturbations known to affect mitochondria-ER contacts. The signal-integrating nature of SpLacZ-MERCS may enable systematic identification of genes and drugs that regulate mitochondria-ER interactions. Our successful application of the split LacZ complementation strategy to study MERCS may be extended to study other forms of interorganellar crosstalk.
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Affiliation(s)
- Zheng Yang
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - David C Chan
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California 91125, United States
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5
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Kadier T, Zhang YG, Jing YX, Weng ZY, Liao SS, Luo J, Ding K, Cao C, Chen R, Meng QT. MCU inhibition protects against intestinal ischemia‒reperfusion by inhibiting Drp1-dependent mitochondrial fission. Free Radic Biol Med 2024; 221:111-124. [PMID: 38763207 DOI: 10.1016/j.freeradbiomed.2024.05.024] [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: 02/20/2024] [Revised: 04/28/2024] [Accepted: 05/12/2024] [Indexed: 05/21/2024]
Abstract
Intestinal ischemia‒reperfusion (IIR) injury is a common complication of surgery, but clear molecular insights and valuable therapeutic targets are lacking. Mitochondrial calcium overload is an early sign of various diseases and is considered a vital factor in ischemia‒reperfusion injury. The mitochondrial calcium uniporter (MCU), which is located on the inner mitochondrial membrane, is the primary mediator of calcium ion entry into the mitochondria. However, the specific mechanism of MCU in IIR injury remains to be clarified. In this study, we generated an IIR model using C57BL/6 mice and Caco-2 cells and found increases in the calcium levels and MCU expression following IIR injury. The specific inhibition of MCU markedly attenuated IIR injury. Moreover, MCU knockdown alleviates mitochondrial dysfunction by reducing oxidative stress and apoptosis. Mechanistically, MCU knockdown substantially reduced the translocation of Drp1 and thus its binding to Fis1 receptors, resulting in decreased mitochondrial fission. Taken together, our findings demonstrated that MCU is a novel upstream regulator of Drp1 in ischemia‒reperfusion and represents a predictive and therapeutic target for IIR.
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Affiliation(s)
- Tulanisa Kadier
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yi-Guo Zhang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yi-Xin Jing
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Zi-Yi Weng
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Shi-Shi Liao
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Jie Luo
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ke Ding
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Chen Cao
- Medical Center, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Rong Chen
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Qing-Tao Meng
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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6
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Pokharel MD, Fu P, Garcia-Flores A, Yegambaram M, Lu Q, Sun X, Unwalla H, Aggarwal S, Fineman JR, Wang T, Black SM. Inflammatory lung injury is associated with endothelial cell mitochondrial fission and requires the nitration of RhoA and cytoskeletal remodeling. Free Radic Biol Med 2024; 221:125-135. [PMID: 38734269 PMCID: PMC11179967 DOI: 10.1016/j.freeradbiomed.2024.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/12/2024] [Accepted: 05/09/2024] [Indexed: 05/13/2024]
Abstract
Higher levels of extracellular nicotinamide phosphoribosyltransferase (eNAMPT), a TLR4 agonist, are associated with poor clinical outcomes in sepsis-induced acute lung injury (ALI). Little is known regarding the mechanisms by which eNAMPT is involved in ALI. Our recent work has identified a crucial role for mitochondrial dysfunction in ALI. Thus, this study aimed to determine if eNAMPT-mediated inflammatory injury is associated with the loss of mitochondrial function. Our data show that eNAMPT disrupted mitochondrial bioenergetics. This was associated with cytoskeleton remodeling and the loss of endothelial barrier integrity. These changes were associated with enhanced mitochondrial fission and blocked when Rho-kinase (ROCK) was inhibited. The increases in mitochondrial fission were also associated with the nitration-mediated activation of the small GTPase activator of ROCK, RhoA. Blocking RhoA nitration decreased eNAMPT-mediated mitochondrial fission and endothelial barrier dysfunction. The increase in fission was linked to a RhoA-ROCK mediated increase in Drp1 (dynamin-related protein 1) at serine(S)616. Another TLR4 agonist, lipopolysaccharide (LPS), also increased mitochondrial fission in a Drp1 and RhoA-ROCK-dependent manner. To validate our findings in vivo, we challenged C57BL/6 mice with eNAMPT in the presence and absence of the Drp1 inhibitor, Mdivi-1. Mdivi-1 treatment protected against eNAMPT-induced lung inflammation, edema, and lung injury. These studies demonstrate that mitochondrial fission-dependent disruption of mitochondrial function is essential in TLR4-mediated inflammatory lung injury and identify a key role for RhoA-ROCK signaling. Reducing mitochondrial fission could be a potential therapeutic strategy to improve ARDS outcomes.
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Affiliation(s)
- Marissa D Pokharel
- Department of Cellular & Molecular Medicine, Herbert Wertheim College of Medicine, Miami, FL, USA; Center for Translational Science, Florida International University, Port St. Lucie, FL, USA
| | - Panfeng Fu
- Center for Translational Science, Florida International University, Port St. Lucie, FL, USA; Department of Environmental Health Sciences, Robert Stempel College of Public Health and Social Work, University Park, FL, USA
| | | | - Manivannan Yegambaram
- Center for Translational Science, Florida International University, Port St. Lucie, FL, USA; Department of Environmental Health Sciences, Robert Stempel College of Public Health and Social Work, University Park, FL, USA
| | - Qing Lu
- Center for Translational Science, Florida International University, Port St. Lucie, FL, USA; Department of Environmental Health Sciences, Robert Stempel College of Public Health and Social Work, University Park, FL, USA
| | - Xutong Sun
- Center for Translational Science, Florida International University, Port St. Lucie, FL, USA; Department of Environmental Health Sciences, Robert Stempel College of Public Health and Social Work, University Park, FL, USA
| | - Hoshang Unwalla
- Department of Immunology and Nano-Medicine, Howard Wertheim College of Medicine, Florida International University, Miami, FL, 33199, USA
| | - Saurabh Aggarwal
- Department of Cellular & Molecular Medicine, Herbert Wertheim College of Medicine, Miami, FL, USA
| | - Jeffrey R Fineman
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, 94143, USA; Department of Cardiovascular Research Institute, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Ting Wang
- Center for Translational Science, Florida International University, Port St. Lucie, FL, USA; Department of Environmental Health Sciences, Robert Stempel College of Public Health and Social Work, University Park, FL, USA
| | - Stephen M Black
- Department of Cellular & Molecular Medicine, Herbert Wertheim College of Medicine, Miami, FL, USA; Center for Translational Science, Florida International University, Port St. Lucie, FL, USA; Department of Environmental Health Sciences, Robert Stempel College of Public Health and Social Work, University Park, FL, USA.
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7
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Ye J, Wu J, Ai L, Zhu M, Li Y, Yin D, Huang Q. Geniposide effectively safeguards HT22 cells against Aβ-induced damage by activating mitophagy via the PINK1/Parkin signaling pathway. Biochem Pharmacol 2024; 226:116296. [PMID: 38762146 DOI: 10.1016/j.bcp.2024.116296] [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: 01/12/2024] [Revised: 05/12/2024] [Accepted: 05/15/2024] [Indexed: 05/20/2024]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder characterized by the significant involvement of amyloid-beta (Aβ) peptide in its pathogenesis. Geniposide, derived from the versatile medicinal of Gardenia jasminoides, is one of the active compounds studied extensively. The objective was to explore the impact of geniposide on Aβ25-35-induced damage in HT22 cells, specifically focusing on its modulation of PINK1/Parkin-mediated mitophagy. In our investigation, geniposide exhibited remarkable restorative effects by enhancing cell viability and preserving the mitochondrial membrane potential. Moreover, it effectively reduced and mitigated the oxidative stress and apoptosis rates induced by Aβ25-35. Notably, geniposide exhibited the capacity to enhance autophagic flux, upregulate LC3II and Beclin-1 expression, and downregulate the expression of p62. Furthermore, geniposide positively influenced the expression of PINK1 and Parkin proteins, with molecular docking substantiating a strong interaction between geniposide and PINK1/Parkin proteins. Intriguingly, the beneficial outcomes of geniposide on alleviating the pronounced apoptosis rates, the overproduction of reactive oxygen species, and diminished the PINK1 and Parkin expression induced by Aβ25-35 were compromised by the mitophagy inhibitor cyclosporine A (CsA). Collectively, these findings suggested that geniposide potentially shields HT22 cells against neurodegenerative damage triggered by Aβ25-35 through the activation of mitophagy. The insights contribute valuable references to the defensive consequences against neurological damage of geniposide, thereby highlighting its potential as a therapeutic intervention in AD.
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Affiliation(s)
- Jiaxi Ye
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510300, PR China
| | - Jiaying Wu
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510300, PR China
| | - Liang Ai
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510300, PR China
| | - Min Zhu
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510300, PR China
| | - Yun Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Research Center of Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, PR China
| | - Dong Yin
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Research Center of Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, PR China.
| | - Qihui Huang
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510300, PR China.
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8
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Shen Y, Yang Y, Wang Z, Lin W, Feng N, Shi M, Liu J, Ma W. Coptisine exerts anti-tumour effects in triple-negative breast cancer by targeting mitochondrial complex I. Br J Pharmacol 2024. [PMID: 38982680 DOI: 10.1111/bph.16489] [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: 02/22/2024] [Revised: 05/08/2024] [Accepted: 05/29/2024] [Indexed: 07/11/2024] Open
Abstract
BACKGROUND AND PURPOSE Triple-negative breast cancer (TNBC) has a poor prognosis due to limited therapeutic options. Recent studies have shown that TNBC is highly dependent on mitochondrial oxidative phosphorylation. The aim of this study was to investigate the potential of coptisine, a novel compound that inhibits the complex I of the mitochondrial electron transport chain (ETC), as a treatment for TNBC. EXPERIMENTAL APPROACH In this study, mitochondrial metabolism in TNBC was analysed by bioinformatics. In vitro and in vivo experiments (in mice) were conducted to evaluate the potential of coptisine as an ETC complex I-targeting therapeutic agent and to investigate the molecular mechanisms underlying coptisine-induced mitochondrial dysfunction. The therapeutic effect of coptisine was assessed in TNBC cells and xenograft mouse model. KEY RESULTS We demonstrated that mitochondrial ETC I was responsible for this metabolic vulnerability in TNBC. Furthermore, a naturally occurring compound, coptisine, exhibited specific inhibitory activity against this complex I. Treatment with coptisine significantly inhibited mitochondrial functions, reprogrammed cellular metabolism, induced apoptosis and ultimately inhibited the proliferation of TNBC cells. Additionally, coptisine administration induced prominent growth inhibition that was dependent on the presence of a functional complex I in xenograft mouse models. CONCLUSION AND IMPLICATIONS Altogether, these findings suggest the promising potential of coptisine as a potent ETC complex I inhibitor to target the metabolic vulnerability of TNBC.
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Affiliation(s)
- Yunfu Shen
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - You Yang
- Department of Pediatrics, Affiliated Hospital of Southwest Medical University, Birth Defects Clinical Medical Research Center of Sichuan Province, Luzhou, China
| | - Zi Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Wanjun Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Na Feng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China
| | - Meina Shi
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Jiachen Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Wenzhe Ma
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
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9
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Sajeeda A, Bhat AM, Gorke S, Wani IA, Sidiqui A, Ahmed Z, Sheikh TA. Naringenin, a flavanone constituent from Sea buckthorn pulp extract, prevents ultraviolet (UV)-B radiation-induced skin damage via alleviation of impaired mitochondrial dynamics mediated inflammation in human dermal fibroblasts and Balb/c mice models. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 256:112944. [PMID: 38796981 DOI: 10.1016/j.jphotobiol.2024.112944] [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: 01/19/2024] [Revised: 05/13/2024] [Accepted: 05/18/2024] [Indexed: 05/29/2024]
Abstract
Ultraviolet-B (UV-B) irradiation has been reported to cause oxidative stress and inflammation-mediated skin photo-damage. Furthermore, mitochondrial dynamics have been implicated to play a critical role in these processes. For the first time, we describe in this study how UVB-induced aberrant mitochondrial dynamics and inflammation interact in primary human dermal fibroblasts (HDFs). Our findings demonstrated that UV-B irradiation induced -impairment in mitochondrial dynamics by increasing mitochondrial fragmentation in HDFs. Imbalanced mitochondrial dynamics lead to the activation of NFкB and pro-inflammatory cytokines. The current study further aimed to investigate the protective effect of Naringenin (a naturally occurring flavonoid isolated from Sea buckthorn fruit pulp) against UV-B-induced mitochondrial fragmentation and inflammation in HDFs and Balb/c mice. Although Naringenin has been shown to have anti-inflammatory and antioxidant potential, its effects and mechanisms of action on UVB-induced inflammation remained unclear. We observed that Naringenin restored the UV-B-induced imbalance in mitochondrial fission and fusion in HDFs. It also inhibited the phosphorylation of NFкB and reduced the generation of pro-inflammatory cytokines. Naringenin also alleviated UV-B-induced oxidative stress by scavenging the reactive oxygen species and up-regulating the cellular antioxidant enzymes (Catalase and Nrf2). Topical application of Naringenin to the dorsal skin of Balb/c mice exposed to UV-B radiation prevented mitochondrial fragmentation and progression of inflammatory responses. Naringenin treatment prevented neutrophil infiltration and epidermal thickening in mice's skin. These findings provide an understanding for further research into impaired mitochondrial dynamics as a therapeutic target for UV-B-induced inflammation. Our findings imply that Naringenin could be developed as a therapeutic remedy against UVB-induced inflammation.
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Affiliation(s)
- Archoo Sajeeda
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India; Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi 180001, Jammu and Kashmir, India
| | - Aalim Maqsood Bhat
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India; Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi 180001, Jammu and Kashmir, India
| | - Shikha Gorke
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India; Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi 180001, Jammu and Kashmir, India
| | - Irfan Ahmad Wani
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India; Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi 180001, Jammu and Kashmir, India
| | - Adil Sidiqui
- Department of Pathology, Government Medical College (GMC), Srinagar, Jammu and Kashmir, India
| | - Zabeer Ahmed
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India; Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi 180001, Jammu and Kashmir, India
| | - Tasduq Abdullah Sheikh
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India; Pharmacology Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi 180001, Jammu and Kashmir, India.
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10
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Wankhede NL, Rajendra Kopalli S, Dhokne MD, Badnag DJ, Chandurkar PA, Mangrulkar SV, Shende PV, Taksande BG, Upaganlawar AB, Umekar MJ, Koppula S, Kale MB. Decoding mitochondrial quality control mechanisms: Identifying treatment targets for enhanced cellular health. Mitochondrion 2024; 78:101926. [PMID: 38944367 DOI: 10.1016/j.mito.2024.101926] [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: 02/23/2024] [Revised: 05/09/2024] [Accepted: 06/26/2024] [Indexed: 07/01/2024]
Abstract
Mitochondria are singular cell organelles essential for many cellular functions, which includes responding to stress, regulating calcium levels, maintaining protein homeostasis, and coordinating apoptosis response. The vitality of cells, therefore, hinges on the optimal functioning of these dynamic organelles. Mitochondrial Quality Control Mechanisms (MQCM) play a pivotal role in ensuring the integrity and functionality of mitochondria. Perturbations in these mechanisms have been closely associated with the pathogenesis of neurodegenerative disorders such as Parkinson's disease, Alzheimer's disease, Huntington's disease, and amyotrophic lateral sclerosis. Compelling evidence suggests that targeting specific pathways within the MQCM could potentially offer a therapeutic avenue for rescuing mitochondrial integrity and mitigating the progression of neurodegenerative diseases. The intricate interplay of cellular stress, protein misfolding, and impaired quality control mechanisms provides a nuanced understanding of the underlying pathology. Consequently, unravelling the specific MQCM dysregulation in neurodegenerative disorders becomes paramount for developing targeted therapeutic strategies. This review delves into the impaired MQCM pathways implicated in neurodegenerative disorders and explores emerging therapeutic interventions. By shedding light on pharmaceutical and genetic manipulations aimed at restoring MQCM efficiency, the discussion aims to provide insights into novel strategies for ameliorating the progression of neurodegenerative diseases. Understanding and addressing mitochondrial quality control mechanisms not only underscore their significance in cellular health but also offer a promising frontier for advancing therapeutic approaches in the realm of neurodegenerative disorders.
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Affiliation(s)
- Nitu L Wankhede
- Smt. Kishoritai Bhoyar College of Pharmacy, New Kamptee- 441002, Nagpur, Maharashtra, India.
| | - Spandana Rajendra Kopalli
- Department of Bioscience and Biotechnology, Sejong University, Gwangjin-gu, Seoul 05006, Republic of Korea.
| | - Mrunali D Dhokne
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Raebareli, Uttar Pradesh (UP) - 226002, India.
| | - Dishant J Badnag
- Smt. Kishoritai Bhoyar College of Pharmacy, New Kamptee- 441002, Nagpur, Maharashtra, India.
| | - Pranali A Chandurkar
- Smt. Kishoritai Bhoyar College of Pharmacy, New Kamptee- 441002, Nagpur, Maharashtra, India.
| | - Shubhada V Mangrulkar
- Smt. Kishoritai Bhoyar College of Pharmacy, New Kamptee- 441002, Nagpur, Maharashtra, India.
| | - Prajwali V Shende
- Smt. Kishoritai Bhoyar College of Pharmacy, New Kamptee- 441002, Nagpur, Maharashtra, India.
| | - Brijesh G Taksande
- Smt. Kishoritai Bhoyar College of Pharmacy, New Kamptee- 441002, Nagpur, Maharashtra, India.
| | - Aman B Upaganlawar
- SNJB's Shriman Sureshdada Jain College of Pharmacy, Neminagar, Chandwad- 423101, Nashik, Maharashtra, India.
| | - Milind J Umekar
- Smt. Kishoritai Bhoyar College of Pharmacy, New Kamptee- 441002, Nagpur, Maharashtra, India.
| | - Sushruta Koppula
- College of Biomedical and Health Sciences, Konkuk University, Chungju-Si, Chungcheongbuk Do 27478, Republic of Korea.
| | - Mayur B Kale
- Smt. Kishoritai Bhoyar College of Pharmacy, New Kamptee- 441002, Nagpur, Maharashtra, India.
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11
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Lin Y, Wang D, Li B, Wang J, Xu L, Sun X, Ji K, Yan C, Liu F, Zhao Y. Targeting DRP1 with Mdivi-1 to correct mitochondrial abnormalities in ADOA+ syndrome. JCI Insight 2024; 9:e180582. [PMID: 38916953 DOI: 10.1172/jci.insight.180582] [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: 03/01/2024] [Accepted: 06/18/2024] [Indexed: 06/27/2024] Open
Abstract
Autosomal dominant optic atrophy plus (ADOA+) is characterized by primary optic nerve atrophy accompanied by a spectrum of degenerative neurological symptoms. Despite ongoing research, no effective treatments are currently available for this condition. Our study provided evidence for the pathogenicity of an unreported c.1780T>C variant in the OPA1 gene through patient-derived skin fibroblasts and an engineered HEK293T cell line with OPA1 downregulation. We demonstrate that OPA1 insufficiency promoted mitochondrial fragmentation and increased DRP1 expression, disrupting mitochondrial dynamics. Consequently, this disruption enhanced mitophagy and caused mitochondrial dysfunction, contributing to the ADOA+ phenotype. Notably, the Drp1 inhibitor, mitochondrial division inhibitor-1 (Mdivi-1), effectively mitigated the adverse effects of OPA1 impairment. These effects included reduced Drp1 phosphorylation, decreased mitochondrial fragmentation, and balanced mitophagy. Thus, we propose that intervening in DRP1 with Mdivi-1 could correct mitochondrial abnormalities, offering a promising therapeutic approach for managing ADOA+.
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Affiliation(s)
- Yan Lin
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Dongdong Wang
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Busu Li
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Jiayin Wang
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Ling Xu
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xiaohan Sun
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Kunqian Ji
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Chuanzhu Yan
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Mitochondrial Medicine Laboratory, Qilu Hospital (Qingdao), Shandong University, Qingdao, Shandong, China
- Brain Science Research Institute, Shandong University, Jinan, Shandong, China
| | - Fuchen Liu
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yuying Zhao
- Research Institute of Neuromuscular and Neurodegenerative Diseases and Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
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12
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Silva-Pavez E, Mendoza E, Morgado-Cáceres P, Ahumada-Castro U, Bustos G, Kangme-Encalada M, de Arbina AL, Puebla-Huerta A, Muñoz F, Cereceda L, Varas-Godoy M, Hidalgo Y, Cardenas JC. Mitochondrial division inhibitor (mdivi-1) induces extracellular matrix (ECM)-detachment of viable breast cancer cells by a DRP1-independent mechanism. Sci Rep 2024; 14:14178. [PMID: 38898058 PMCID: PMC11187114 DOI: 10.1038/s41598-024-64228-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 06/06/2024] [Indexed: 06/21/2024] Open
Abstract
Increasing evidence supports the hypothesis that cancer progression is under mitochondrial control. Mitochondrial fission plays a pivotal role in the maintenance of cancer cell homeostasis. The inhibition of DRP1, the main regulator of mitochondrial fission, with the mitochondrial division inhibitor (mdivi-1) had been associated with cancer cell sensitivity to chemotherapeutics and decrease proliferation. Here, using breast cancer cells we find that mdivi-1 induces the detachment of the cells, leading to a bulk of floating cells that conserved their viability. Despite a decrease in their proliferative and clonogenic capabilities, these floating cells maintain the capacity to re-adhere upon re-seeding and retain their migratory and invasive potential. Interestingly, the cell detachment induced by mdivi-1 is independent of DRP1 but relies on inhibition of mitochondrial complex I. Furthermore, mdivi-1 induces cell detachment rely on glucose and the pentose phosphate pathway. Our data evidence a novel DRP1-independent effect of mdivi-1 in the attachment of cancer cells. The generation of floating viable cells restricts the use of mdivi-1 as a therapeutic agent and demonstrates that mdivi-1 effect on cancer cells are more complex than anticipated.
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Affiliation(s)
- Eduardo Silva-Pavez
- Facultad de Odontología y Ciencias de la Rehabilitación, Universidad San Sebastián, Bellavista, Bellavista 7, Recoleta, Santiago, Chile.
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Camino la Pirámide 5750, Huechuraba, Santiago, Chile.
| | - Elizabeth Mendoza
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Camino la Pirámide 5750, Huechuraba, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Pablo Morgado-Cáceres
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Camino la Pirámide 5750, Huechuraba, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Ulises Ahumada-Castro
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Camino la Pirámide 5750, Huechuraba, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Galdo Bustos
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Camino la Pirámide 5750, Huechuraba, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Matías Kangme-Encalada
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Camino la Pirámide 5750, Huechuraba, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | | | - Andrea Puebla-Huerta
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Camino la Pirámide 5750, Huechuraba, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Felipe Muñoz
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Camino la Pirámide 5750, Huechuraba, Santiago, Chile
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile
| | - Lucas Cereceda
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
- Laboratory of Nano-Regenerative Medicine, Biomedical Research and Innovation Center (CIIB), Faculty of Medicine, Universidad de los Andes, Santiago, Chile
| | - Manuel Varas-Godoy
- Cancer Cell Biology Lab., Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebastián, Lota 2465, Santiago, Chile
- Centro Ciencia & Vida, Fundación Ciencia & Vida, Avenida Del Valle Norte 725, Huechuraba, Santiago, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santos Dumont 964, Independencia, Santiago, Chile
| | - Yessia Hidalgo
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago, Chile
- Laboratory of Nano-Regenerative Medicine, Biomedical Research and Innovation Center (CIIB), Faculty of Medicine, Universidad de los Andes, Santiago, Chile
| | - J Cesar Cardenas
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Camino la Pirámide 5750, Huechuraba, Santiago, Chile.
- Geroscience Center for Brain Health and Metabolism, Santiago, Chile.
- Buck Institute for Research on Aging, Novato, USA.
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, USA.
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13
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Wai T. Is mitochondrial morphology important for cellular physiology? Trends Endocrinol Metab 2024:S1043-2760(24)00123-1. [PMID: 38866638 DOI: 10.1016/j.tem.2024.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/07/2024] [Accepted: 05/13/2024] [Indexed: 06/14/2024]
Abstract
Mitochondria are double membrane-bound organelles the network morphology of which in cells is shaped by opposing events of fusion and fission executed by dynamin-like GTPases. Mutations in these genes can perturb the form and functions of mitochondria in cell and animal models of mitochondrial diseases. An expanding array of chemical, mechanical, and genetic stressors can converge on mitochondrial-shaping proteins and disrupt mitochondrial morphology. In recent years, studies aimed at disentangling the multiple roles of mitochondrial-shaping proteins beyond fission or fusion have provided insights into the homeostatic relevance of mitochondrial morphology. Here, I review the pleiotropy of mitochondrial fusion and fission proteins with the aim of understanding whether mitochondrial morphology is important for cell and tissue physiology.
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Affiliation(s)
- Timothy Wai
- Institut Pasteur, Mitochondrial Biology, CNRS UMR 3691, Université Paris Cité, Paris, France.
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14
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Ahn SI, Choi SK, Kim MJ, Wie J, You JS. Mdivi-1: Effective but complex mitochondrial fission inhibitor. Biochem Biophys Res Commun 2024; 710:149886. [PMID: 38581953 DOI: 10.1016/j.bbrc.2024.149886] [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: 01/19/2024] [Revised: 03/19/2024] [Accepted: 04/02/2024] [Indexed: 04/08/2024]
Abstract
Mdivi-1, Mitochondrial DIVIsion inhibitor 1, has been widely employed in research under the assumption that it exclusively influences mitochondrial fusion, but effects other than mitochondrial dynamics have been underinvestigated. This paper provides transcriptome and DNA methylome-wide analysis for Mdivi-1 treated SH-SY5Y human neuroblastoma cells using RNA sequencing (RNA-seq) and methyl capture sequencing (MC-seq) methods. Gene ontology analysis of RNA sequences revealed that p53 transcriptional gene network and DNA replication initiation-related genes were significantly up and down-regulated, respectively, showing the correlation with the arrest cell cycle in the G1 phase. MC-seq, a powerful sequencing method for capturing DNA methylation status in CpG sites, revealed that although Mdivi-1 does not induce dramatic DNA methylation change, the subtle alterations were concentrated within the CpG island. Integrative analysis of both sequencing data disclosed that the p53 transcriptional network was activated while the Parkinson's disease pathway was halted. Next, we investigated several changes in mitochondria in response to Mdivi-1. Copy number and transcription of mitochondrial DNA were suppressed. ROS levels increased, and elevated ROS triggered mitochondrial retrograde signaling rather than inducing direct DNA damage. In this study, we could better understand the molecular network of Mdivi-1 by analyzing DNA methylation and mRNA transcription in the nucleus and further investigating various changes in mitochondria, providing inspiration for studying nuclear-mitochondrial communications.
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Affiliation(s)
- Seor I Ahn
- Department of Biochemistry, School of Medicine, Konkuk University, Chungju, Republic of Korea
| | - Sung Kyung Choi
- Department of Biochemistry, School of Medicine, Konkuk University, Chungju, Republic of Korea
| | - Myoung Jun Kim
- Department of Biochemistry, School of Medicine, Konkuk University, Chungju, Republic of Korea
| | - Jinhong Wie
- Department of Physiology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jueng Soo You
- Department of Biochemistry, School of Medicine, Konkuk University, Chungju, Republic of Korea; KU Open Innovation Center, Research Institute of Medical Science, Konkuk University, Republic of Korea.
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15
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Zong Y, Li H, Liao P, Chen L, Pan Y, Zheng Y, Zhang C, Liu D, Zheng M, Gao J. Mitochondrial dysfunction: mechanisms and advances in therapy. Signal Transduct Target Ther 2024; 9:124. [PMID: 38744846 PMCID: PMC11094169 DOI: 10.1038/s41392-024-01839-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 12/05/2023] [Accepted: 04/21/2024] [Indexed: 05/16/2024] Open
Abstract
Mitochondria, with their intricate networks of functions and information processing, are pivotal in both health regulation and disease progression. Particularly, mitochondrial dysfunctions are identified in many common pathologies, including cardiovascular diseases, neurodegeneration, metabolic syndrome, and cancer. However, the multifaceted nature and elusive phenotypic threshold of mitochondrial dysfunction complicate our understanding of their contributions to diseases. Nonetheless, these complexities do not prevent mitochondria from being among the most important therapeutic targets. In recent years, strategies targeting mitochondrial dysfunction have continuously emerged and transitioned to clinical trials. Advanced intervention such as using healthy mitochondria to replenish or replace damaged mitochondria, has shown promise in preclinical trials of various diseases. Mitochondrial components, including mtDNA, mitochondria-located microRNA, and associated proteins can be potential therapeutic agents to augment mitochondrial function in immunometabolic diseases and tissue injuries. Here, we review current knowledge of mitochondrial pathophysiology in concrete examples of common diseases. We also summarize current strategies to treat mitochondrial dysfunction from the perspective of dietary supplements and targeted therapies, as well as the clinical translational situation of related pharmacology agents. Finally, this review discusses the innovations and potential applications of mitochondrial transplantation as an advanced and promising treatment.
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Affiliation(s)
- Yao Zong
- Centre for Orthopaedic Research, Medical School, The University of Western Australia, Nedlands, WA, 6009, Australia
| | - Hao Li
- Department of Orthopaedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
- Institute of Microsurgery on Extremities, and Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Peng Liao
- Department of Orthopaedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
- Institute of Microsurgery on Extremities, and Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Long Chen
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Yao Pan
- Department of Orthopaedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Yongqiang Zheng
- Sixth People's Hospital Fujian, No. 16, Luoshan Section, Jinguang Road, Luoshan Street, Jinjiang City, Quanzhou, Fujian, China
| | - Changqing Zhang
- Department of Orthopaedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Delin Liu
- Department of Orthopaedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.
- Institute of Microsurgery on Extremities, and Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.
| | - Minghao Zheng
- Centre for Orthopaedic Research, Medical School, The University of Western Australia, Nedlands, WA, 6009, Australia.
| | - Junjie Gao
- Department of Orthopaedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.
- Institute of Microsurgery on Extremities, and Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China.
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16
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Preston KJ, Kawai T, Torimoto K, Kuroda R, Nakayama Y, Akiyama T, Kimura Y, Scalia R, Autieri MV, Rizzo V, Hashimoto T, Osei-Owusu P, Eguchi S. Mitochondrial fission inhibition protects against hypertension induced by angiotensin II. Hypertens Res 2024; 47:1338-1349. [PMID: 38383894 DOI: 10.1038/s41440-024-01610-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 12/14/2023] [Accepted: 01/27/2024] [Indexed: 02/23/2024]
Abstract
Mitochondrial dysfunction has been implicated in various types of cardiovascular disease including hypertension. Mitochondrial fission fusion balance is critical to mitochondrial quality control, whereas enhanced fission has been reported in several models of cardiovascular disease. However, limited information is available regarding the contribution of mitochondrial fission in hypertension. Here, we have tested the hypothesis that inhibition of mitochondrial fission attenuates the development of hypertension and associated vascular remodeling. In C57BL6 mice infused with angiotensin II for 2 weeks, co-treatment of mitochondrial fission inhibitor, mdivi1, significantly inhibited angiotensin II-induced development of hypertension assessed by radiotelemetry. Histological assessment of hearts and aortas showed that mdivi1 inhibited vessel fibrosis and hypertrophy induced by angiotensin II. This was associated with attenuation of angiotensin II-induced decline in mitochondrial aspect ratio seen in both the endothelial and medial layers of aortas. Mdivi1 also mitigated angiotensin II-induced cardiac hypertrophy assessed by heart weight-to-body weight ratio as well as by echocardiography. In ex vivo experiments, mdivi1 inhibited vasoconstriction and abolished the enhanced vascular reactivity by angiotensin II in small mesenteric arteries. Proteomic analysis on endothelial cell culture media with angiotensin II and/or mdivi1 treatment revealed that mdivi1 inhibited endothelial cell hypersecretory phenotype induced by angiotensin II. In addition, mdivi1 attenuated angiotensin II-induced protein induction of periostin, a myofibroblast marker in cultured vascular fibroblasts. In conclusion, these data suggest that mdivi1 prevented angiotensin II-induced hypertension and cardiovascular remodeling via multicellular mechanisms in the vasculature.
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Affiliation(s)
- Kyle J Preston
- Department of Cardiovascular Science and Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, 19140, USA
| | - Tatsuo Kawai
- Lemole Center for Integrated Lymphatics Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, 19140, USA
| | - Keiichi Torimoto
- Department of Cardiovascular Science and Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, 19140, USA
| | - Ryohei Kuroda
- Department of Cardiovascular Science and Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, 19140, USA
| | - Yuki Nakayama
- Department of Cardiovascular Science and Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, 19140, USA
| | - Tomoko Akiyama
- Advanced Medical Research Center, Yokohama City University, Yokohama, 236-0004, Japan
| | - Yayoi Kimura
- Advanced Medical Research Center, Yokohama City University, Yokohama, 236-0004, Japan
| | - Rosario Scalia
- Lemole Center for Integrated Lymphatics Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, 19140, USA
| | - Michael V Autieri
- Lemole Center for Integrated Lymphatics Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, 19140, USA
| | - Victor Rizzo
- Department of Cardiovascular Science and Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, 19140, USA
| | - Tomoki Hashimoto
- Barrow Aneurysm and AVM Research Center, Departments of Neurosurgery and Neurobiology Barrow Neurological Institute Phoenix AZ, Phoenix, AZ, USA
| | - Patrick Osei-Owusu
- Department of Physiology and Biophysics, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Satoru Eguchi
- Department of Cardiovascular Science and Sol Sherry Thrombosis Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, 19140, USA.
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17
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Tang S, Huang M, Wang R, Li M, Dong N, Wu R, Chi Z, Gao L. Drp1-dependent mitochondrial fragmentation mediates photoreceptor abnormalities in type 1 diabetic retina. Exp Eye Res 2024; 242:109860. [PMID: 38467174 DOI: 10.1016/j.exer.2024.109860] [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: 08/05/2023] [Revised: 01/27/2024] [Accepted: 03/08/2024] [Indexed: 03/13/2024]
Abstract
Recent studies have highlighted that retinal neurodegeneration precedes microvascular changes in diabetic retinopathy (DR), but the specific mechanisms remain unclear. Given the pivotal role of dysfunctional mitochondria and oxidative stress in early DR, our objective was to observe mitochondria-related alterations in the neural retina of type one diabetic mellitus mice with no evidence of DR (T1DM-NDR). We aimed to identify the key mitochondrial-related proteins contributing to mitochondrial injury. Our study revealed that T1DM-NDR mice exhibited outer retina thinning, including the ellipsoid zone, inner segment, and outer segment. Additionally, there was an impaired amplitude of the b-wave in electroretinogram (ERG) and a disorganized arrangement of the photoreceptor layer. In both the retina of DM mice and high glucose (HG)-treated 661w cells, mitochondria appeared swollen and fragmented, with disrupted cristae, disorganized or shortened branches in the mitochondrial network, and decreased mitochondrial membrane potential. Among the mitochondrial-related proteins, dynamin-related protein 1 (Drp1) was upregulated, and the ratio of phosphorylated Drp1 protein at serine 616 (S616) and serine 637 (S637) sites significantly increased in the retina of DM mice. The administration of Mdivi-1 ameliorated high-glucose-induced dysfunctional mitochondria, thereby protecting T1DM-NDR mice retina from morphological and functional injuries. Our findings suggest that hyperglycemia promotes Drp1-mediated mitochondrial dysfunction, which may be a significant factor in the development of DR. The inhibition of high-glucose-induced mitochondrial fission emerges as a potential and innovative intervention strategy for preventing DR.
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Affiliation(s)
- Shuyu Tang
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Mengling Huang
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ruixuan Wang
- Bourns Engineering, The University of California, Riverside, Riverside, CA, 92521, United States
| | - Ming Li
- Department of Immunology, College of Basic Medical Immunology, Central South University, Changsha, China
| | - Ning Dong
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ronghan Wu
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, China; National Clinical Research Center for Ocular Diseases, Eye Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zailong Chi
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, China; National Clinical Research Center for Ocular Diseases, Eye Hospital of Wenzhou Medical University, Wenzhou, China.
| | - Ling Gao
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China; State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital of Wenzhou Medical University, Wenzhou, China; National Clinical Research Center for Ocular Diseases, Eye Hospital of Wenzhou Medical University, Wenzhou, China.
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18
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Ma X, Niu M, Ni HM, Ding WX. Mitochondrial dynamics, quality control, and mtDNA in alcohol-associated liver disease and liver cancer. Hepatology 2024:01515467-990000000-00861. [PMID: 38683546 DOI: 10.1097/hep.0000000000000910] [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] [Received: 02/24/2024] [Accepted: 04/05/2024] [Indexed: 05/01/2024]
Abstract
Mitochondria are intracellular organelles responsible for energy production, glucose and lipid metabolism, cell death, cell proliferation, and innate immune response. Mitochondria are highly dynamic organelles that constantly undergo fission, fusion, and intracellular trafficking, as well as degradation and biogenesis. Mitochondrial dysfunction has been implicated in a variety of chronic liver diseases including alcohol-associated liver disease, metabolic dysfunction-associated steatohepatitis, and HCC. In this review, we provide a detailed overview of mitochondrial dynamics, mitophagy, and mitochondrial DNA-mediated innate immune response, and how dysregulation of these mitochondrial processes affects the pathogenesis of alcohol-associated liver disease and HCC. Mitochondrial dynamics and mitochondrial DNA-mediated innate immune response may thereby represent an attractive therapeutic target for ameliorating alcohol-associated liver disease and alcohol-associated HCC.
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Affiliation(s)
- Xiaowen Ma
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Mengwei Niu
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Hong-Min Ni
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Wen-Xing Ding
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA
- Department of Internal Medicine, Division of Gastroenterology, Hepatology and Mobility, University of Kansas Medical Center, Kansas City, Kansas, USA
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19
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Li H, Zhang J, Shen Y, Ye Y, Jiang Q, Chen L, Sun B, Chen Z, Shen L, Fang H, Yang J, Gu H. Targeting Mitochondrial Complex I Deficiency in MPP +/MPTP-induced Parkinson's Disease Cell Culture and Mouse Models by Transducing Yeast NDI1 Gene. Biol Proced Online 2024; 26:9. [PMID: 38594619 PMCID: PMC11003148 DOI: 10.1186/s12575-024-00236-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 03/27/2024] [Indexed: 04/11/2024] Open
Abstract
BACKGROUND MPTP (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine), original found in synthetic heroin, causes Parkinson's disease (PD) in human through its metabolite MPP+ by inhibiting complex I of mitochondrial respiratory chain in dopaminergic neurons. This study explored whether yeast internal NADH-quinone oxidoreductase (NDI1) has therapeutic effects in MPTP- induced PD models by functionally compensating for the impaired complex I. MPP+-treated SH-SY5Y cells and MPTP-treated mice were used as the PD cell culture and mouse models respectively. The recombinant NDI1 lentivirus was transduced into SH-SY5Y cells, or the recombinant NDI1 adeno-associated virus (rAAV5-NDI1) was injected into substantia nigra pars compacta (SNpc) of mice. RESULTS The study in vitro showed NDI1 prevented MPP+-induced change in cell morphology and decreased cell viability, mitochondrial coupling efficiency, complex I-dependent oxygen consumption, and mitochondria-derived ATP. The study in vivo revealed that rAAV-NDI1 injection significantly improved the motor ability and exploration behavior of MPTP-induced PD mice. Accordingly, NDI1 notably improved dopaminergic neuron survival, reduced the inflammatory response, and significantly increased the dopamine content in striatum and complex I activity in substantia nigra. CONCLUSIONS NDI1 compensates for the defective complex I in MPP+/MPTP-induced models, and vastly alleviates MPTP-induced toxic effect on dopaminergic neurons. Our study may provide a basis for gene therapy of sporadic PD with defective complex I caused by MPTP-like substance.
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Affiliation(s)
- Hongzhi Li
- Key Laboratory of Laboratory Medicine, Ministry of Education, Wenzhou Key Laboratory of Cancer Pathogenesis and Translation, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Chashan University Town, Northern Zhongshan Road, Wenzhou, 325035, China.
| | - Jing Zhang
- Department of Pathology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Yuqi Shen
- Key Laboratory of Laboratory Medicine, Ministry of Education, Wenzhou Key Laboratory of Cancer Pathogenesis and Translation, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Chashan University Town, Northern Zhongshan Road, Wenzhou, 325035, China
| | - Yifan Ye
- Key Laboratory of Laboratory Medicine, Ministry of Education, Wenzhou Key Laboratory of Cancer Pathogenesis and Translation, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Chashan University Town, Northern Zhongshan Road, Wenzhou, 325035, China
| | - Qingyou Jiang
- Key Laboratory of Laboratory Medicine, Ministry of Education, Wenzhou Key Laboratory of Cancer Pathogenesis and Translation, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Chashan University Town, Northern Zhongshan Road, Wenzhou, 325035, China
| | - Lan Chen
- Key Laboratory of Laboratory Medicine, Ministry of Education, Wenzhou Key Laboratory of Cancer Pathogenesis and Translation, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Chashan University Town, Northern Zhongshan Road, Wenzhou, 325035, China
| | - Bohao Sun
- Department of Pathology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Zhuo Chen
- Key Laboratory of Laboratory Medicine, Ministry of Education, Wenzhou Key Laboratory of Cancer Pathogenesis and Translation, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Chashan University Town, Northern Zhongshan Road, Wenzhou, 325035, China
| | - Luxi Shen
- Department of Internal Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Hezhi Fang
- Key Laboratory of Laboratory Medicine, Ministry of Education, Wenzhou Key Laboratory of Cancer Pathogenesis and Translation, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Chashan University Town, Northern Zhongshan Road, Wenzhou, 325035, China
| | - Jifeng Yang
- Key Laboratory of Laboratory Medicine, Ministry of Education, Wenzhou Key Laboratory of Cancer Pathogenesis and Translation, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Chashan University Town, Northern Zhongshan Road, Wenzhou, 325035, China.
| | - Haihua Gu
- Key Laboratory of Laboratory Medicine, Ministry of Education, Wenzhou Key Laboratory of Cancer Pathogenesis and Translation, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Chashan University Town, Northern Zhongshan Road, Wenzhou, 325035, China.
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20
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Lu G, Li HX, Song ZW, Luo J, Fan YL, Yin YL, Shen J, Shen MH. Combination of bone marrow mesenchymal stem cells and moxibustion restores cyclophosphamide-induced premature ovarian insufficiency by improving mitochondrial function and regulating mitophagy. Stem Cell Res Ther 2024; 15:102. [PMID: 38589967 PMCID: PMC11003045 DOI: 10.1186/s13287-024-03709-0] [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: 12/12/2023] [Accepted: 03/26/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND Premature ovarian insufficiency (POI) is a major cause of infertility. In this study, we aimed to investigate the effects of the combination of bone marrow mesenchymal stem cells (BMSCs) and moxibustion (BMSCs-MOX) on POI and evaluate the underlying mechanisms. METHODS A POI rat model was established by injecting different doses of cyclophosphamide (Cy). The modeling of POI and the effects of the treatments were assessed by evaluating estrous cycle, serum hormone levels, ovarian weight, ovarian index, and ovarian histopathological analysis. The effects of moxibustion on BMSCs migration were evaluated by tracking DiR-labeled BMSCs and analyzing the expression of chemokines stromal cell-derived factor 1 (Sdf1) and chemokine receptor type 4 (Cxcr4). Mitochondrial function and mitophagy were assessed by measuring the levels of reactive oxygen species (ROS), mitochondrial membrane potential (MMP), ATP, and the mitophagy markers (Drp1, Pink1, and Parkin). Furthermore, the mitophagy inhibitor Mdivi-1 and the mitophagy activator CCCP were used to confirm the role of mitophagy in Cy-induced ovarian injury and the underlying mechanism of combination therapy. RESULTS A suitable rat model of POI was established using Cy injection. Compared to moxibustion or BMSCs transplantation alone, BMSCs-MOX showed improved outcomes, such as reduced estrous cycle disorders, improved ovarian weight and index, normalized serum hormone levels, increased ovarian reserve, and reduced follicle atresia. Moxibustion enhanced Sdf1 and Cxcr4 expression, promoting BMSCs migration. BMSCs-MOX reduced ROS levels; upregulated MMP and ATP levels in ovarian granulosa cells (GCs); and downregulated Drp1, Pink1, and Parkin expression in ovarian tissues. Mdivi-1 significantly mitigated mitochondrial dysfunction in ovarian GCs and improved ovarian function. CCCP inhibited the ability of BMSCs-MOX treatment to regulate mitophagy and ameliorate Cy-induced ovarian injury. CONCLUSIONS Moxibustion enhanced the migration and homing of BMSCs following transplantation and improves their ability to repair ovarian damage. The combination of BMSCs and moxibustion effectively reduced the excessive activation of mitophagy, which helped prevent mitochondrial damage, ultimately improving ovarian function. These findings provide a novel approach for the treatment of pathological ovarian aging and offer new insights into enhancing the efficacy of stem cell therapy for POI patients.
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Affiliation(s)
- Ge Lu
- College of Acupuncture Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing, China
| | - Hong-Xiao Li
- College of Acupuncture Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zi-Wei Song
- College of Acupuncture Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jia Luo
- College of Acupuncture Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yan-Liang Fan
- College of Acupuncture Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yao-Li Yin
- College of Acupuncture Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Jie Shen
- College of Acupuncture Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Mei-Hong Shen
- College of Acupuncture Moxibustion and Tuina, Nanjing University of Chinese Medicine, Nanjing, China.
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China.
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21
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Paradis S, Charles AL, Giannini M, Meyer A, Lejay A, Talha S, Laverny G, Charloux A, Geny B. Targeting Mitochondrial Dynamics during Lower-Limb Ischemia Reperfusion in Young and Old Mice: Effect of Mitochondrial Fission Inhibitor-1 (mDivi-1). Int J Mol Sci 2024; 25:4025. [PMID: 38612835 PMCID: PMC11012338 DOI: 10.3390/ijms25074025] [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: 02/29/2024] [Revised: 03/25/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024] Open
Abstract
Peripheral arterial disease (PAD) strikes more than 200 million people worldwide and has a severe prognosis by potentially leading to limb amputation and/or death, particularly in older patients. Skeletal muscle mitochondrial dysfunctions and oxidative stress play major roles in this disease in relation with ischemia-reperfusion (IR) cycles. Mitochondrial dynamics through impairment of fission-fusion balance may contribute to skeletal muscle pathophysiology, but no data were reported in the setting of lower-limb IR despite the need for new therapeutic options. We, therefore, investigated the potential protective effect of mitochondrial division inhibitor-1 (mDivi-1; 50 mg/kg) in young (23 weeks) and old (83 weeks) mice submitted to two-hour ischemia followed by two-hour reperfusion on systemic lactate, muscle mitochondrial respiration and calcium retention capacity, and on transcripts specific for oxidative stress and mitochondrial dynamics. At the systemic levels, an IR-related increase in circulating lactate was still major despite mDivi-1 use (+305.9% p < 0.0001, and +269.4% p < 0.0001 in young and old mice, respectively). Further, IR-induced skeletal muscle mitochondrial dysfunctions (more severely impaired mitochondrial respiration in old mice (OXPHOS CI state, -68.2% p < 0.0001 and -84.9% p < 0.0001 in 23- and 83-week mice) and reduced calcium retention capacity (-46.1% p < 0.001 and -48.2% p = 0.09, respectively) were not corrected by mDivi-1 preconditioning, whatever the age. Further, mDivi-1 treatment did not oppose superoxide anion production (+71.4% p < 0.0001 and +37.5% p < 0.05, respectively). At the transcript level, markers of antioxidant enzymes (SOD 1, SOD 2, catalase, and GPx) and fission markers (Drp1, Fis) remained unchanged or tended to be decreased in the ischemic leg. Fusion markers such as mitofusin 1 or 2 decreased significantly after IR in both groups. In conclusion, aging enhanced the deleterious effects or IR on muscle mitochondrial respiration, and in this setting of lower-limb IR, mDivi-1 failed to protect the skeletal muscle both in young and old mice.
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Affiliation(s)
- Stéphanie Paradis
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
- Department of Physiology and Functional Explorations, University Hospital of Strasbourg, 67000 Strasbourg, France
| | - Anne-Laure Charles
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
| | - Margherita Giannini
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
- Department of Physiology and Functional Explorations, University Hospital of Strasbourg, 67000 Strasbourg, France
| | - Alain Meyer
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
- Department of Physiology and Functional Explorations, University Hospital of Strasbourg, 67000 Strasbourg, France
| | - Anne Lejay
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
- Vascular Surgery Department, University Hospital of Strasbourg, 67000 Strasbourg, France
| | - Samy Talha
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
- Department of Physiology and Functional Explorations, University Hospital of Strasbourg, 67000 Strasbourg, France
| | - Gilles Laverny
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), 67400 Illkirch, France;
| | - Anne Charloux
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
- Department of Physiology and Functional Explorations, University Hospital of Strasbourg, 67000 Strasbourg, France
| | - Bernard Geny
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
- Department of Physiology and Functional Explorations, University Hospital of Strasbourg, 67000 Strasbourg, France
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22
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Barnhoorn S, Milanese C, Li T, Dons L, Ghazvini M, Sette M, Farina S, Sproviero D, Payan-Gomez C, Mastroberardino PG. Orthogonal analysis of mitochondrial function in Parkinson's disease patients. Cell Death Dis 2024; 15:243. [PMID: 38570521 PMCID: PMC10991487 DOI: 10.1038/s41419-024-06617-6] [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: 09/14/2023] [Revised: 03/08/2024] [Accepted: 03/18/2024] [Indexed: 04/05/2024]
Abstract
The etiopathology of Parkinson's disease has been associated with mitochondrial defects at genetic, laboratory, epidemiological, and clinical levels. These converging lines of evidence suggest that mitochondrial defects are systemic and causative factors in the pathophysiology of PD, rather than being mere correlates. Understanding mitochondrial biology in PD at a granular level is therefore crucial from both basic science and translational perspectives. In a recent study, we investigated mitochondrial alterations in fibroblasts obtained from PD patients assessing mitochondrial function in relation to clinical measures. Our findings demonstrated that the magnitude of mitochondrial alterations parallels disease severity. In this study, we extend these investigations to blood cells and dopamine neurons derived from induced pluripotent stem cells reprogrammed from PD patients. To overcome the inherent metabolic heterogeneity of blood cells, we focused our analyses on metabolically homogeneous, accessible, and expandable erythroblasts. Our results confirm the presence of mitochondrial anomalies in erythroblasts and induced dopamine neurons. Consistent with our previous findings in fibroblasts, we observed that mitochondrial alterations are reversible, as evidenced by enhanced mitochondrial respiration when PD erythroblasts were cultured in a galactose medium that restricts glycolysis. This observation indicates that suppression of mitochondrial respiration may constitute a protective, adaptive response in PD pathogenesis. Notably, this effect was not observed in induced dopamine neurons, suggesting their distinct bioenergetic behavior. In summary, we provide additional evidence for the involvement of mitochondria in the disease process by demonstrating mitochondrial abnormalities in additional cell types relevant to PD. These findings contribute to our understanding of PD pathophysiology and may have implications for the development of novel biomarkers and therapeutic strategies.
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Affiliation(s)
- Sander Barnhoorn
- Department of Molecular Genetics, Erasmus MC, Rotterdam, Netherlands
| | - Chiara Milanese
- IFOM-ETS, the AIRC Institute for molecular Oncology, Milan, Italy
| | - Tracy Li
- Erasmus MC iPS Facility, Erasmus MC, Rotterdam, Netherlands
| | - Lieke Dons
- Erasmus MC iPS Facility, Erasmus MC, Rotterdam, Netherlands
| | | | | | - Stefania Farina
- Department of Molecular Genetics, Erasmus MC, Rotterdam, Netherlands
| | - Daisy Sproviero
- IFOM-ETS, the AIRC Institute for molecular Oncology, Milan, Italy
| | | | - Pier G Mastroberardino
- Department of Molecular Genetics, Erasmus MC, Rotterdam, Netherlands.
- IFOM-ETS, the AIRC Institute for molecular Oncology, Milan, Italy.
- Università degli Studi dell'Aquila, L'Aquila, Italy.
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23
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Zhang W, Li M, Ye X, Jiang M, Wu X, Tang Z, Hu L, Zhang H, Li Y, Pan J. Disturbance of mitochondrial dynamics in myocardium of broilers with pulmonary hypertension syndrome. Br Poult Sci 2024; 65:154-164. [PMID: 38380624 DOI: 10.1080/00071668.2024.2308277] [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: 08/03/2023] [Accepted: 12/05/2023] [Indexed: 02/22/2024]
Abstract
1. The following study investigated the relationship between pulmonary hypertension syndrome (PHS) and mitochondrial dynamics in broiler cardiomyocytes.2. An animal model for PHS was established by injecting broiler chickens with CM-32 cellulose particles. Broiler myocardial cells were cultured under hypoxic conditions to establish an in vitro model. The ascites heart index, histomorphology, mitochondrial ultrastructure, and mitochondrial dynamic-related gene and protein expression were evaluated.3. The myocardial fibres from PHS broilers had wider spaces and were wavy and twisted and the number of mitochondria increased. Compared with the control group, the gene and protein expression levels were decreased for Opa1, Mfn1, and Mfn2 in the myocardium of PHS broilers. The gene and protein expression was significantly increased for Drp1 and Mff.4. This study showed that PHS in broilers may cause myocardial mitochondrial dysfunction, specifically by diminishing mitochondrial fusion and enhancing fission, causing disturbances in the mitochondrial dynamics of the heart.
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Affiliation(s)
- W Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - M Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - X Ye
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - M Jiang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - X Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - Z Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - L Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - H Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - Y Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - J Pan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
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24
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Dubois M, Boulghobra D, Rochebloine G, Pallot F, Yehya M, Bornard I, Gayrard S, Coste F, Walther G, Meyer G, Gaillard JC, Armengaud J, Alpha-Bazin B, Reboul C. Hyperglycemia triggers RyR2-dependent alterations of mitochondrial calcium homeostasis in response to cardiac ischemia-reperfusion: Key role of DRP1 activation. Redox Biol 2024; 70:103044. [PMID: 38266577 PMCID: PMC10835010 DOI: 10.1016/j.redox.2024.103044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/04/2024] [Accepted: 01/14/2024] [Indexed: 01/26/2024] Open
Abstract
Hyperglycemia increases the heart sensitivity to ischemia-reperfusion (IR), but the underlying cellular mechanisms remain unclear. Mitochondrial dynamics (the processes that govern mitochondrial morphology and their interactions with other organelles, such as the reticulum), has emerged as a key factor in the heart vulnerability to IR. However, it is unknown whether mitochondrial dynamics contributes to hyperglycemia deleterious effect during IR. We hypothesized that (i) the higher heart vulnerability to IR in hyperglycemic conditions could be explained by hyperglycemia effect on the complex interplay between mitochondrial dynamics, Ca2+ homeostasis, and reactive oxygen species (ROS) production; and (ii) the activation of DRP1, a key regulator of mitochondrial dynamics, could play a central role. Using transmission electron microscopy and proteomic analysis, we showed that the interactions between sarcoplasmic reticulum and mitochondria and mitochondrial fission were increased during IR in isolated rat hearts perfused with a hyperglycemic buffer compared with hearts perfused with a normoglycemic buffer. In isolated mitochondria and cardiomyocytes, hyperglycemia increased mitochondrial ROS production and Ca2+ uptake. This was associated with higher RyR2 instability. These results could contribute to explain the early mPTP activation in mitochondria from isolated hearts perfused with a hyperglycemic buffer and in hearts from streptozotocin-treated rats (to increase the blood glucose). DRP1 inhibition by Mdivi-1 during the hyperglycemic phase and before IR induction, normalized Ca2+ homeostasis, ROS production, mPTP activation, and reduced the heart sensitivity to IR in streptozotocin-treated rats. In conclusion, hyperglycemia-dependent DRP1 activation results in higher reticulum-mitochondria calcium exchange that contribute to the higher heart vulnerability to IR.
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Affiliation(s)
- Mathilde Dubois
- LAPEC UPR-4278, Avignon Université, F-84000, Avignon, France
| | | | | | - Florian Pallot
- LAPEC UPR-4278, Avignon Université, F-84000, Avignon, France
| | - Marc Yehya
- LAPEC UPR-4278, Avignon Université, F-84000, Avignon, France
| | - Isabelle Bornard
- UR407 INRAE Pathologie Végétale, INRAE, 84140, Montfavet, France
| | | | - Florence Coste
- LAPEC UPR-4278, Avignon Université, F-84000, Avignon, France
| | | | - Gregory Meyer
- LAPEC UPR-4278, Avignon Université, F-84000, Avignon, France
| | - Jean-Charles Gaillard
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, 30200, Bagnols-sur-Cèze, France
| | - Jean Armengaud
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, 30200, Bagnols-sur-Cèze, France
| | - Béatrice Alpha-Bazin
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, 30200, Bagnols-sur-Cèze, France
| | - Cyril Reboul
- LAPEC UPR-4278, Avignon Université, F-84000, Avignon, France.
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25
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Pokharel MD, Garcia-Flores A, Marciano D, Franco MC, Fineman JR, Aggarwal S, Wang T, Black SM. Mitochondrial network dynamics in pulmonary disease: Bridging the gap between inflammation, oxidative stress, and bioenergetics. Redox Biol 2024; 70:103049. [PMID: 38295575 PMCID: PMC10844980 DOI: 10.1016/j.redox.2024.103049] [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: 12/08/2023] [Accepted: 01/16/2024] [Indexed: 02/02/2024] Open
Abstract
Once thought of in terms of bioenergetics, mitochondria are now widely accepted as both the orchestrator of cellular health and the gatekeeper of cell death. The pulmonary disease field has performed extensive efforts to explore the role of mitochondria in regulating inflammation, cellular metabolism, apoptosis, and oxidative stress. However, a critical component of these processes needs to be more studied: mitochondrial network dynamics. Mitochondria morphologically change in response to their environment to regulate these processes through fusion, fission, and mitophagy. This allows mitochondria to adapt their function to respond to cellular requirements, a critical component in maintaining cellular homeostasis. For that reason, mitochondrial network dynamics can be considered a bridge that brings multiple cellular processes together, revealing a potential pathway for therapeutic intervention. In this review, we discuss the critical modulators of mitochondrial dynamics and how they are affected in pulmonary diseases, including chronic obstructive pulmonary disease (COPD), idiopathic pulmonary fibrosis (IPF), acute lung injury (ALI), and pulmonary arterial hypertension (PAH). A dysregulated mitochondrial network plays a crucial role in lung disease pathobiology, and aberrant fission/fusion/mitophagy pathways are druggable processes that warrant further exploration. Thus, we also discuss the candidates for lung disease therapeutics that regulate mitochondrial network dynamics.
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Affiliation(s)
- Marissa D Pokharel
- Center for Translational Science, Florida International University, 11350 SW Village Parkway, Port St. Lucie, FL, 34987-2352, USA; Department of Molecular & Cellular Medicine, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, 33199, USA
| | - Alejandro Garcia-Flores
- Center for Translational Science, Florida International University, 11350 SW Village Parkway, Port St. Lucie, FL, 34987-2352, USA
| | - David Marciano
- Center for Translational Science, Florida International University, 11350 SW Village Parkway, Port St. Lucie, FL, 34987-2352, USA; Department of Molecular & Cellular Medicine, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, 33199, USA
| | - Maria C Franco
- Center for Translational Science, Florida International University, 11350 SW Village Parkway, Port St. Lucie, FL, 34987-2352, USA; Department of Molecular & Cellular Medicine, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, 33199, USA
| | - Jeffrey R Fineman
- Department of Pediatrics, UC San Francisco, San Francisco, CA, 94143, USA
| | - Saurabh Aggarwal
- Department of Molecular & Cellular Medicine, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, 33199, USA
| | - Ting Wang
- Center for Translational Science, Florida International University, 11350 SW Village Parkway, Port St. Lucie, FL, 34987-2352, USA; Department of Environmental Health Sciences, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, FL, 33199, USA
| | - Stephen M Black
- Center for Translational Science, Florida International University, 11350 SW Village Parkway, Port St. Lucie, FL, 34987-2352, USA; Department of Molecular & Cellular Medicine, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, 33199, USA; Department of Environmental Health Sciences, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, FL, 33199, USA.
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26
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Stevens MG, Mason FM, Bullock TNJ. The mitochondrial fission protein DRP1 influences memory CD8+ T cell formation and function. J Leukoc Biol 2024; 115:679-694. [PMID: 38057151 PMCID: PMC10980353 DOI: 10.1093/jleuko/qiad155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/11/2023] [Accepted: 12/05/2023] [Indexed: 12/08/2023] Open
Abstract
Pharmacological methods for promoting mitochondrial elongation suggest that effector T cells can be altered to support a memory T cell-like metabolic state. Such mitochondrial elongation approaches may enhance the development of immunological memory. Therefore, we hypothesized that deletion of the mitochondrial fission protein dynamin-related protein 1 (DRP1) would lead to mitochondrial elongation and generate a large memory T cell population, an approach that could be exploited to enhance vaccination protocols. We find that, as expected, while deletion of DRP1 from T cells in dLckCre × Drp1flfl does compromise the magnitude and functionality of primary effector CD8+ T cells, a disproportionately large pool of memory CD8+ T cells does form. In contrast to primary effector CD8+ T cells, DRP1-deficient memory dLckCre × Drp1flfl CD8+ T cells mount a secondary response comparable to control memory T cells with respect to kinetics, magnitude, and effector capabilities. Interestingly, the relative propensity to form memory cells in the absence of DRP1 was associated with neither differentiation toward more memory precursor CD8+ T cells nor decreased cellular death of effector T cells. Instead, the tendency to form memory CD8+ T cells in the absence of DRP1 is associated with decreased T cell receptor expression. Remarkably, in a competitive environment with DRP1-replete CD8+ T cells, the absence of DRP1 from CD8+ T cells compromised the generation of primary, memory, and secondary responses, indicating that approaches targeting DRP1 need to be carefully tailored.
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Affiliation(s)
- Marissa G Stevens
- Department of Pathology, University of Virginia, 415 Lane Road, PO Box 800904, Charlottesville, VA 22908, United States
| | - Frank M Mason
- Department of Medicine, Vanderbilt University Medical Center, 2220 Pierce Avenue, 612 Preston Research Bldg, Nashville, TN 37232, United States
| | - Timothy N J Bullock
- Department of Pathology, University of Virginia, 415 Lane Road, PO Box 800904, Charlottesville, VA 22908, United States
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27
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Song Z, Xia Y, Shi L, Zha H, Huang J, Xiang X, Li H, Huang H, Yue R, Wang H, Zhu J. Inhibition of Drp1- Fis1 interaction alleviates aberrant mitochondrial fragmentation and acute kidney injury. Cell Mol Biol Lett 2024; 29:31. [PMID: 38439028 PMCID: PMC10910703 DOI: 10.1186/s11658-024-00553-1] [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: 12/24/2023] [Accepted: 02/22/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND Acute kidney injury (AKI) is a common clinical disorder with complex etiology and poor prognosis, and currently lacks specific and effective treatment options. Mitochondrial dynamics dysfunction is a prominent feature in AKI, and modulation of mitochondrial morphology may serve as a potential therapeutic approach for AKI. METHODS We induced ischemia-reperfusion injury (IRI) in mice (bilateral) and Bama pigs (unilateral) by occluding the renal arteries. ATP depletion and recovery (ATP-DR) was performed on proximal renal tubular cells to simulate in vitro IRI. Renal function was evaluated using creatinine and urea nitrogen levels, while renal structural damage was assessed through histopathological staining. The role of Drp1 was investigated using immunoblotting, immunohistochemistry, immunofluorescence, and immunoprecipitation techniques. Mitochondrial morphology was evaluated using confocal microscopy. RESULTS Renal IRI induced significant mitochondrial fragmentation, accompanied by Dynamin-related protein 1 (Drp1) translocation to the mitochondria and Drp1 phosphorylation at Ser616 in the early stages (30 min after reperfusion), when there was no apparent structural damage to the kidney. The use of the Drp1 inhibitor P110 significantly improved kidney function and structural damage. P110 reduced Drp1 mitochondrial translocation, disrupted the interaction between Drp1 and Fis1, without affecting the binding of Drp1 to other mitochondrial receptors such as MFF and Mid51. High-dose administration had no apparent toxic side effects. Furthermore, ATP-DR induced mitochondrial fission in renal tubular cells, accompanied by a decrease in mitochondrial membrane potential and an increase in the translocation of the pro-apoptotic protein Bax. This process facilitated the release of dsDNA, triggering the activation of the cGAS-STING pathway and promoting inflammation. P110 attenuated mitochondrial fission, suppressed Bax mitochondrial translocation, prevented dsDNA release, and reduced the activation of the cGAS-STING pathway. Furthermore, these protective effects of P110 were also observed renal IRI model in the Bama pig and folic acid-induced nephropathy in mice. CONCLUSIONS Dysfunction of mitochondrial dynamics mediated by Drp1 contributes to renal IRI. The specific inhibitor of Drp1, P110, demonstrated protective effects in both in vivo and in vitro models of AKI.
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Affiliation(s)
- Zhixia Song
- Department of Nephrology, Center People's Hospital of Yichang, The First Clinical Medical College of Three Gorges University, Yichang, 443000, Hubei, China.
- Kidney Disease Research Institute of Three Gorges University, Yichang, 443000, Hubei, China.
| | - Yao Xia
- Department of Nephrology, Center People's Hospital of Yichang, The First Clinical Medical College of Three Gorges University, Yichang, 443000, Hubei, China
- Kidney Disease Research Institute of Three Gorges University, Yichang, 443000, Hubei, China
| | - Lang Shi
- Kidney Disease Research Institute of Three Gorges University, Yichang, 443000, Hubei, China
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Hongchu Zha
- Department of Nephrology, Center People's Hospital of Yichang, The First Clinical Medical College of Three Gorges University, Yichang, 443000, Hubei, China
- Kidney Disease Research Institute of Three Gorges University, Yichang, 443000, Hubei, China
| | - Jing Huang
- Department of Nephrology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Xiaohong Xiang
- Department of Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, 410000, China
| | - Huiming Li
- Department of Nephrology, Center People's Hospital of Yichang, The First Clinical Medical College of Three Gorges University, Yichang, 443000, Hubei, China
- Kidney Disease Research Institute of Three Gorges University, Yichang, 443000, Hubei, China
| | - Hua Huang
- Department of Nephrology, Center People's Hospital of Yichang, The First Clinical Medical College of Three Gorges University, Yichang, 443000, Hubei, China
- Kidney Disease Research Institute of Three Gorges University, Yichang, 443000, Hubei, China
| | - Ruchi Yue
- Department of Nephrology, Center People's Hospital of Yichang, The First Clinical Medical College of Three Gorges University, Yichang, 443000, Hubei, China
- Kidney Disease Research Institute of Three Gorges University, Yichang, 443000, Hubei, China
| | - Hongtao Wang
- Department of Nephrology, Center People's Hospital of Yichang, The First Clinical Medical College of Three Gorges University, Yichang, 443000, Hubei, China
- Kidney Disease Research Institute of Three Gorges University, Yichang, 443000, Hubei, China
| | - Jiefu Zhu
- Kidney Disease Research Institute of Three Gorges University, Yichang, 443000, Hubei, China.
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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Das P, Chakrabarti O. ISGylation of DRP1 closely balances other post-translational modifications to mediate mitochondrial fission. Cell Death Dis 2024; 15:184. [PMID: 38431611 PMCID: PMC10908869 DOI: 10.1038/s41419-024-06543-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 02/04/2024] [Accepted: 02/06/2024] [Indexed: 03/05/2024]
Abstract
Dynamin related protein 1 (DRP1), a pivotal mitochondrial fission protein, is post-translationally modified by multiple mechanisms. Here we identify a new post-translational modification of DRP1 by the ubiquitin-like protein, interferon-stimulated gene 15 (ISG15). DRP1 ISGylation is mediated by ISG15 E3 ligase, HERC5; this promotes mitochondrial fission. DeISGylation of DRP1 however leads to hyperfusion. Heterologous expression of SARS-CoV2 PLpro, a deISGylating enzyme, results in similar mitochondrial filamentation, significant decrease in total DRP1 protein levels and efflux of mtDNA. We report that deISGylated DRP1 gets ubiquitylated and degraded by TRIM25, instead of PARKIN and MITOL. While the cytosolic pool of DRP1 is primarily ISGylated, both mitochondrial and cytosolic fractions may be ubiquitylated. It is known that phosphorylation of DRP1 at S616 residue regulates its mitochondrial localisation; we show that ISGylation of phospho-DRP1 (S616) renders fission competence at mitochondria. This is significant because DRP1 ISGylation affects its functionality and mitochondrial dynamics in Alzheimer's disease pathophysiology.
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Affiliation(s)
- Palamou Das
- Biophysics & Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, 700064, India
- Homi Bhabha National Institute, Mumbai, India
| | - Oishee Chakrabarti
- Biophysics & Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, 700064, India.
- Homi Bhabha National Institute, Mumbai, India.
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29
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Crespo-Avilan GE, Hernandez-Resendiz S, Ramachandra CJ, Ungureanu V, Lin YH, Lu S, Bernhagen J, El Bounkari O, Preissner KT, Liehn EA, Hausenloy DJ. Metabolic reprogramming of immune cells by mitochondrial division inhibitor-1 to prevent post-vascular injury neointimal hyperplasia. Atherosclerosis 2024; 390:117450. [PMID: 38266625 DOI: 10.1016/j.atherosclerosis.2024.117450] [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: 10/11/2022] [Revised: 12/23/2023] [Accepted: 01/09/2024] [Indexed: 01/26/2024]
Abstract
BACKGROUND AND AIMS New treatments are needed to prevent neointimal hyperplasia that contributes to post-angioplasty and stent restenosis in patients with coronary artery disease (CAD) and peripheral arterial disease (PAD). We investigated whether modulating mitochondrial function using mitochondrial division inhibitor-1 (Mdivi-1) could reduce post-vascular injury neointimal hyperplasia by metabolic reprogramming of macrophages from a pro-inflammatory to anti-inflammatory phenotype. METHODS AND RESULTS In vivo Mdivi-1 treatment of Apoe-/- mice fed a high-fat diet and subjected to carotid-wire injury decreased neointimal hyperplasia by 68%, reduced numbers of plaque vascular smooth muscle cells and pro-inflammatory M1-like macrophages, and decreased plaque inflammation, endothelial activation, and apoptosis, when compared to control. Mdivi-1 treatment of human THP-1 macrophages shifted polarization from a pro-inflammatory M1-like to an anti-inflammatory M2-like phenotype, reduced monocyte chemotaxis and migration to CCL2 and macrophage colony stimulating factor (M-CSF) and decreased secretion of pro-inflammatory mediators. Finally, treatment of pro-inflammatory M1-type-macrophages with Mdivi-1 metabolically reprogrammed them to an anti-inflammatory M2-like phenotype by inhibiting oxidative phosphorylation and attenuating the increase in succinate levels and correcting the decreased levels of arginine and citrulline. CONCLUSIONS We report that treatment with Mdivi-1 inhibits post-vascular injury neointimal hyperplasia by metabolic reprogramming macrophages towards an anti-inflammatory phenotype thereby highlighting the therapeutic potential of Mdivi-1 for preventing neointimal hyperplasia and restenosis following angioplasty and stenting in CAD and PAD patients.
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Affiliation(s)
- Gustavo E Crespo-Avilan
- Department of Biochemistry, Medical Faculty, Justus Liebig-University, Giessen, Germany; Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore; National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore
| | - Sauri Hernandez-Resendiz
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore; National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore
| | - Chrishan J Ramachandra
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore; National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore
| | - Victor Ungureanu
- National Institute of Pathology, "Victor Babes", Bucharest, Romania
| | - Ying-Hsi Lin
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore; National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore
| | - Shengjie Lu
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore; National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore
| | - Jürgen Bernhagen
- Division of Vascular Biology, Institute for Stroke and Dementia Research, University Hospital, Ludwig-Maximilians-University, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany; Munich Heart Alliance, Munich, Germany
| | - Omar El Bounkari
- Division of Vascular Biology, Institute for Stroke and Dementia Research, University Hospital, Ludwig-Maximilians-University, Munich, Germany
| | - Klaus T Preissner
- Department of Biochemistry, Medical Faculty, Justus Liebig-University, Giessen, Germany; Kerckhoff-Heart-Research-Institute, Department of Cardiology, Medical School, Justus-Liebig-University, Giessen, Germany
| | - Elisa A Liehn
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore; National Institute of Pathology, "Victor Babes", Bucharest, Romania; Institute for Molecular Medicine, University of South Denmark, Odense, Denmark.
| | - Derek J Hausenloy
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore; National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore; The Hatter Cardiovascular Institute, University College London, London, WC1E 6BT, UK; Yong Loo Lin School of Medicine, National University Singapore, Singapore.
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30
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Torcasio R, Gallo Cantafio ME, Veneziano C, De Marco C, Ganino L, Valentino I, Occhiuzzi MA, Perrotta ID, Mancuso T, Conforti F, Rizzuti B, Martino EA, Gentile M, Neri A, Viglietto G, Grande F, Amodio N. Targeting of mitochondrial fission through natural flavanones elicits anti-myeloma activity. J Transl Med 2024; 22:208. [PMID: 38413989 PMCID: PMC10898065 DOI: 10.1186/s12967-024-05013-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 02/21/2024] [Indexed: 02/29/2024] Open
Abstract
BACKGROUND Mitochondrial alterations, often dependent on unbalanced mitochondrial dynamics, feature in the pathobiology of human cancers, including multiple myeloma (MM). Flavanones are natural flavonoids endowed with mitochondrial targeting activities. Herein, we investigated the capability of Hesperetin (Hes) and Naringenin (Nar), two aglycones of Hesperidin and Naringin flavanone glycosides, to selectively target Drp1, a pivotal regulator of mitochondrial dynamics, prompting anti-MM activity. METHODS Molecular docking analyses were performed on the crystallographic structure of Dynamin-1-like protein (Drp1), using Hes and Nar molecular structures. Cell viability and apoptosis were assessed in MM cell lines, or in co-culture systems with primary bone marrow stromal cells, using Cell Titer Glo and Annexin V-7AAD staining, respectively; clonogenicity was determined using methylcellulose colony assays. Transcriptomic analyses were carried out using the Ion AmpliSeq™ platform; mRNA and protein expression levels were determined by quantitative RT-PCR and western blotting, respectively. Mitochondrial architecture was assessed by transmission electron microscopy. Real time measurement of oxygen consumption was performed by high resolution respirometry in living cells. In vivo anti-tumor activity was evaluated in NOD-SCID mice subcutaneously engrafted with MM cells. RESULTS Hes and Nar were found to accommodate within the GTPase binding site of Drp1, and to inhibit Drp1 expression and activity, leading to hyperfused mitochondria with reduced OXPHOS. In vitro, Hes and Nar reduced MM clonogenicity and viability, even in the presence of patient-derived bone marrow stromal cells, triggering ER stress and apoptosis. Interestingly, Hes and Nar rewired MM cell metabolism through the down-regulation of master transcriptional activators (SREBF-1, c-MYC) of lipogenesis genes. An extract of Tacle, a Citrus variety rich in Hesperidin and Naringin, was capable to recapitulate the phenotypic and molecular perturbations of each flavanone, triggering anti-MM activity in vivo. CONCLUSION Hes and Nar inhibit proliferation, rewire the metabolism and induce apoptosis of MM cells via antagonism of the mitochondrial fission driver Drp1. These results provide a framework for the development of natural anti-MM therapeutics targeting aberrant mitochondrial dependencies.
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Affiliation(s)
- Roberta Torcasio
- Department of Experimental and Clinical Medicine, University Magna Graecia of Catanzaro, Viale Europa, Campus Germaneto, 88100, Catanzaro, Italy
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Cosenza, Italy
| | | | - Claudia Veneziano
- Department of Experimental and Clinical Medicine, University Magna Graecia of Catanzaro, Viale Europa, Campus Germaneto, 88100, Catanzaro, Italy
| | - Carmela De Marco
- Department of Experimental and Clinical Medicine, University Magna Graecia of Catanzaro, Viale Europa, Campus Germaneto, 88100, Catanzaro, Italy
| | - Ludovica Ganino
- Department of Experimental and Clinical Medicine, University Magna Graecia of Catanzaro, Viale Europa, Campus Germaneto, 88100, Catanzaro, Italy
| | - Ilenia Valentino
- Department of Experimental and Clinical Medicine, University Magna Graecia of Catanzaro, Viale Europa, Campus Germaneto, 88100, Catanzaro, Italy
| | - Maria Antonietta Occhiuzzi
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, CS, Italy
| | - Ida Daniela Perrotta
- Department of Biology, Ecology and Earth Sciences, Centre for Microscopy and Microanalysis, University of Calabria, Cosenza, Italy
| | - Teresa Mancuso
- Annunziata" Regional Hospital Cosenza, 87100, Cosenza, Italy
| | - Filomena Conforti
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, CS, Italy
| | - Bruno Rizzuti
- SS Rende (CS), Department of Physics, CNR-NANOTEC, University of Calabria, Via Pietro Bucci, 87036, Rende, CS, Italy
- Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Unit GBsC-CSIC-BIFI, University of Zaragoza, 50018, Saragossa, Spain
| | | | - Massimo Gentile
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, CS, Italy
- Annunziata" Regional Hospital Cosenza, 87100, Cosenza, Italy
| | - Antonino Neri
- Scientific Directorate, IRCCS Di Reggio Emilia, Emilia Romagna, Reggio Emilia, Italy
| | - Giuseppe Viglietto
- Department of Experimental and Clinical Medicine, University Magna Graecia of Catanzaro, Viale Europa, Campus Germaneto, 88100, Catanzaro, Italy
| | - Fedora Grande
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, CS, Italy
| | - Nicola Amodio
- Department of Experimental and Clinical Medicine, University Magna Graecia of Catanzaro, Viale Europa, Campus Germaneto, 88100, Catanzaro, Italy.
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31
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Yang Z, Chan DC. Development of a signal-integrating reporter to monitor mitochondria-ER contacts. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.14.580376. [PMID: 38405790 PMCID: PMC10888864 DOI: 10.1101/2024.02.14.580376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Mitochondria-ER contact sites (MERCS) serve as hotspots for important cellular processes, including calcium homeostasis, phospholipid homeostasis, mitochondria dynamics, and mitochondrial quality control. MERCS reporters based on complementation of GFP fragments have been designed to visualize MERCS in real-time, but we find that they do not accurately respond to changes in MERCS content. Here, we utilize split LacZ complementing fragments to develop the first MERCS reporter system (termed SpLacZ-MERCS) that continuously integrates the MERCS information within a cell and generates a fluorescent output. Our system exhibits good organelle targeting, no artifactual tethering, and effective, dynamic tracking of the MERCS level in single cells. The SpLacZ-MERCS reporter was validated by drug treatments and genetic perturbations known to affect mitochondria-ER contacts. The signal-integrating nature of SpLacZ-MERCS may enable systematic identification of genes and drugs that regulate mitochondria-ER interactions. Our successful application of the split LacZ complementation strategy to study MERCS may be extended to study other forms of inter-organellar crosstalk.
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32
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Yang ZJ, Guo CL, Gong YX, Li L, Wang LL, Liu HM, Cao JM, Lu ZY. Dapagliflozin Suppresses Isoprenaline-Induced Cardiac Hypertrophy Through Inhibition of Mitochondrial Fission. J Cardiovasc Pharmacol 2024; 83:193-204. [PMID: 38030139 PMCID: PMC10842662 DOI: 10.1097/fjc.0000000000001518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 11/11/2023] [Indexed: 12/01/2023]
Abstract
ABSTRACT Dapagliflozin (DAPA) is a novel oral hypoglycemic agent, and there is increasing evidence that DAPA has a protective effect against cardiovascular disease. The study aimed to investigate how DAPA inhibits cardiac hypertrophy and explore its potential mechanisms. By continuously infusing isoprenaline (ISO) for 2 weeks using a subcutaneous osmotic pump, a cardiac hypertrophic model was established in male C57BL/6 mice. On day 14 after surgery, echocardiography showed that left ventricle mass (LV mass), interventricular septum, left ventricle posterior wall diastole, and left ventricular posterior wall systole were significantly increased, and ejection fraction was decreased compared with control mice. Masson and Wheat Germ Agglutinin staining indicated enhanced myocardial fibrosis and cell morphology compared with control mice. Importantly, these effects were inhibited by DAPA treatment in ISO-induced mice. In H9c2 cells and neonatal rat cardiomyocytes, we found that mitochondrial fragmentation and mitochondrial oxidative stress were significantly augmented in the ISO-induced group. However, DAPA rescued the cardiac hypertrophy in ISO-induced H9c2 cells and neonatal rat cardiomyocytes. Mechanistically, we found that DAPA restored the PIM1 activity in ISO-induced H9c2 cells and subsequent increase in dynamin-associated protein 1 (Drp1) phosphorylation at S616 and decrease in Drp1 phosphorylation at S637 in ISO-induced cells. We found that DAPA mitigated ISO-induced cardiac hypertrophy by suppressing Drp1-mediated mitochondrial fission in a PIM1-dependent fashion.
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Affiliation(s)
- Zhuo-Jing Yang
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, Department of Physiology, Shanxi Medical University, Taiyuan, China
- Department of Nursing, Shanxi Provincial People's Hospital, Taiyuan, China
| | - Chun-Ling Guo
- Department of Cardiology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Yu-Xin Gong
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, Department of Physiology, Shanxi Medical University, Taiyuan, China
- Department of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Long Li
- Department of Cardiology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Li-li Wang
- Department of Nursing, Shanxi Provincial People's Hospital, Taiyuan, China
| | - Hui-Min Liu
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, Department of Physiology, Shanxi Medical University, Taiyuan, China
- Department of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China; and
| | - Ji-Min Cao
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, Department of Physiology, Shanxi Medical University, Taiyuan, China
| | - Zhao-Yang Lu
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, Department of Physiology, Shanxi Medical University, Taiyuan, China
- Department of Cardiology, The Second Hospital of Shanxi Medical University, Taiyuan, China
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Shaw Hospital, Zhejiang University, Hangzhou, China
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Reiss AB, Gulkarov S, Jacob B, Srivastava A, Pinkhasov A, Gomolin IH, Stecker MM, Wisniewski T, De Leon J. Mitochondria in Alzheimer's Disease Pathogenesis. Life (Basel) 2024; 14:196. [PMID: 38398707 PMCID: PMC10890468 DOI: 10.3390/life14020196] [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: 01/05/2024] [Revised: 01/23/2024] [Accepted: 01/25/2024] [Indexed: 02/25/2024] Open
Abstract
Alzheimer's disease (AD) is a progressive and incurable neurodegenerative disorder that primarily affects persons aged 65 years and above. It causes dementia with memory loss and deterioration in thinking and language skills. AD is characterized by specific pathology resulting from the accumulation in the brain of extracellular plaques of amyloid-β and intracellular tangles of phosphorylated tau. The importance of mitochondrial dysfunction in AD pathogenesis, while previously underrecognized, is now more and more appreciated. Mitochondria are an essential organelle involved in cellular bioenergetics and signaling pathways. Mitochondrial processes crucial for synaptic activity such as mitophagy, mitochondrial trafficking, mitochondrial fission, and mitochondrial fusion are dysregulated in the AD brain. Excess fission and fragmentation yield mitochondria with low energy production. Reduced glucose metabolism is also observed in the AD brain with a hypometabolic state, particularly in the temporo-parietal brain regions. This review addresses the multiple ways in which abnormal mitochondrial structure and function contribute to AD. Disruption of the electron transport chain and ATP production are particularly neurotoxic because brain cells have disproportionately high energy demands. In addition, oxidative stress, which is extremely damaging to nerve cells, rises dramatically with mitochondrial dyshomeostasis. Restoring mitochondrial health may be a viable approach to AD treatment.
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Affiliation(s)
- Allison B. Reiss
- Department of Medicine and Biomedical Research Institute, NYU Grossman Long Island School of Medicine, Mineola, NY 11501, USA; (S.G.); (B.J.); (A.S.); (A.P.); (I.H.G.); (J.D.L.)
| | - Shelly Gulkarov
- Department of Medicine and Biomedical Research Institute, NYU Grossman Long Island School of Medicine, Mineola, NY 11501, USA; (S.G.); (B.J.); (A.S.); (A.P.); (I.H.G.); (J.D.L.)
| | - Benna Jacob
- Department of Medicine and Biomedical Research Institute, NYU Grossman Long Island School of Medicine, Mineola, NY 11501, USA; (S.G.); (B.J.); (A.S.); (A.P.); (I.H.G.); (J.D.L.)
| | - Ankita Srivastava
- Department of Medicine and Biomedical Research Institute, NYU Grossman Long Island School of Medicine, Mineola, NY 11501, USA; (S.G.); (B.J.); (A.S.); (A.P.); (I.H.G.); (J.D.L.)
| | - Aaron Pinkhasov
- Department of Medicine and Biomedical Research Institute, NYU Grossman Long Island School of Medicine, Mineola, NY 11501, USA; (S.G.); (B.J.); (A.S.); (A.P.); (I.H.G.); (J.D.L.)
| | - Irving H. Gomolin
- Department of Medicine and Biomedical Research Institute, NYU Grossman Long Island School of Medicine, Mineola, NY 11501, USA; (S.G.); (B.J.); (A.S.); (A.P.); (I.H.G.); (J.D.L.)
| | - Mark M. Stecker
- The Fresno Institute of Neuroscience, Fresno, CA 93730, USA;
| | - Thomas Wisniewski
- Center for Cognitive Neurology, Departments of Neurology, Pathology and Psychiatry, New York University Grossman School of Medicine, New York, NY 10016, USA;
| | - Joshua De Leon
- Department of Medicine and Biomedical Research Institute, NYU Grossman Long Island School of Medicine, Mineola, NY 11501, USA; (S.G.); (B.J.); (A.S.); (A.P.); (I.H.G.); (J.D.L.)
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Pan J, Pany S, Martinez-Carrasco R, Fini ME. Differential Efficacy of Small Molecules Dynasore and Mdivi-1 for the Treatment of Dry Eye Epitheliopathy or as a Countermeasure for Nitrogen Mustard Exposure of the Ocular Surface. J Pharmacol Exp Ther 2024; 388:506-517. [PMID: 37442618 PMCID: PMC10801785 DOI: 10.1124/jpet.123.001697] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 05/19/2023] [Accepted: 06/05/2023] [Indexed: 07/15/2023] Open
Abstract
The ocular surface comprises the wet mucosal epithelia of the cornea and conjunctiva, the associated glands, and the overlying tear film. Epitheliopathy is the common pathologic outcome when the ocular surface is subjected to oxidative stress. Whether different stresses act via the same or different mechanisms is not known. Dynasore and dyngo-4a, small molecules developed to inhibit the GTPase activity of classic dynamins DNM1, DNM2, and DNM3, but not mdivi-1, a specific inhibitor of DNM1L, protect corneal epithelial cells exposed to the oxidant tert-butyl hydroperoxide (tBHP). Here we report that, while dyngo-4a is the more potent inhibitor of endocytosis, dynasore is the better cytoprotectant. Dynasore also protects corneal epithelial cells against exposure to high salt in an in vitro model of dysfunctional tears in dry eye. We now validate this finding in vivo, demonstrating that dynasore protects against epitheliopathy in a mouse model of dry eye. Knockdown of classic dynamin DNM2 was also cytoprotective against tBHP exposure, suggesting that dynasore's effect is at least partially on target. Like tBHP and high salt, exposure of corneal epithelial cells to nitrogen mustard upregulated the unfolded protein response and inflammatory markers, but dynasore did not protect against nitrogen mustard exposure. In contrast, mdivi-1 was cytoprotective. Interestingly, mdivi-1 did not inhibit the nitrogen mustard-induced expression of inflammatory cytokines. We conclude that exposure to tBHP or nitrogen mustard, two different oxidative stress agents, cause corneal epitheliopathy via different pathologic pathways. SIGNIFICANCE STATEMENT: Results presented in this paper, for the first time, implicate the dynamin DNM2 in ocular surface epitheliopathy. The findings suggest that dynasore could serve as a new topical treatment for dry eye epitheliopathy and that mdivi-1 could serve as a medical countermeasure for epitheliopathy due to nitrogen mustard exposure, with potentially increased efficacy when combined with anti-inflammatory agents and/or UPR modulators.
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Affiliation(s)
- Jinhong Pan
- New England Eye Center, Tufts Medical Center and Department of Ophthalmology, Tufts University School of Medicine (J.P., S.P., R.M.-C., M.E.F.) and Program in Pharmacology and Drug Development, Tufts Graduate School of Biomedical Sciences (M.E.F.), Tufts University, Boston, Massachusetts
| | - Satyabrata Pany
- New England Eye Center, Tufts Medical Center and Department of Ophthalmology, Tufts University School of Medicine (J.P., S.P., R.M.-C., M.E.F.) and Program in Pharmacology and Drug Development, Tufts Graduate School of Biomedical Sciences (M.E.F.), Tufts University, Boston, Massachusetts
| | - Rafael Martinez-Carrasco
- New England Eye Center, Tufts Medical Center and Department of Ophthalmology, Tufts University School of Medicine (J.P., S.P., R.M.-C., M.E.F.) and Program in Pharmacology and Drug Development, Tufts Graduate School of Biomedical Sciences (M.E.F.), Tufts University, Boston, Massachusetts
| | - M Elizabeth Fini
- New England Eye Center, Tufts Medical Center and Department of Ophthalmology, Tufts University School of Medicine (J.P., S.P., R.M.-C., M.E.F.) and Program in Pharmacology and Drug Development, Tufts Graduate School of Biomedical Sciences (M.E.F.), Tufts University, Boston, Massachusetts
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Piao L, Fang YH, Fisher M, Hamanaka RB, Ousta A, Wu R, Mutlu GM, Garcia AJ, Archer SL, Sharp WW. Dynamin-related protein 1 is a critical regulator of mitochondrial calcium homeostasis during myocardial ischemia/reperfusion injury. FASEB J 2024; 38:e23379. [PMID: 38133921 DOI: 10.1096/fj.202301040rr] [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: 05/26/2023] [Revised: 11/17/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023]
Abstract
Dynamin-related protein 1 (Drp1) is a cytosolic GTPase protein that when activated translocates to the mitochondria, meditating mitochondrial fission and increasing reactive oxygen species (ROS) in cardiomyocytes. Drp1 has shown promise as a therapeutic target for reducing cardiac ischemia/reperfusion (IR) injury; however, the lack of specificity of some small molecule Drp1 inhibitors and the reliance on the use of Drp1 haploinsufficient hearts from older mice have left the role of Drp1 in IR in question. Here, we address these concerns using two approaches, using: (a) short-term (3 weeks), conditional, cardiomyocyte-specific, Drp1 knockout (KO) and (b) a novel, highly specific Drp1 GTPase inhibitor, Drpitor1a. Short-term Drp1 KO mice exhibited preserved exercise capacity and cardiac contractility, and their isolated cardiac mitochondria demonstrated increased mitochondrial complex 1 activity, respiratory coupling, and calcium retention capacity compared to controls. When exposed to IR injury in a Langendorff perfusion system, Drp1 KO hearts had preserved contractility, decreased reactive oxygen species (ROS), enhanced mitochondrial calcium capacity, and increased resistance to mitochondrial permeability transition pore (MPTP) opening. Pharmacological inhibition of Drp1 with Drpitor1a following ischemia, but before reperfusion, was as protective as Drp1 KO for cardiac function and mitochondrial calcium homeostasis. In contrast to the benefits of short-term Drp1 inhibition, prolonged Drp1 ablation (6 weeks) resulted in cardiomyopathy. Drp1 KO hearts were also associated with decreased ryanodine receptor 2 (RyR2) protein expression and pharmacological inhibition of the RyR2 receptor decreased ROS in post-IR hearts suggesting that changes in RyR2 may have a role in Drp1 KO mediated cardioprotection. We conclude that Drp1-mediated increases in myocardial ROS production and impairment of mitochondrial calcium handling are key mechanisms of IR injury. Short-term inhibition of Drp1 is a promising strategy to limit early myocardial IR injury which is relevant for the therapy of acute myocardial infarction, cardiac arrest, and heart transplantation.
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Affiliation(s)
- Lin Piao
- Section of Emergency Medicine, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Yong-Hu Fang
- Section of Emergency Medicine, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Michael Fisher
- Section of Emergency Medicine, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Robert B Hamanaka
- Section of Pulmonary and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Alaa Ousta
- Department of Emergency Medicine, Duke University, Durham, North Carolina, USA
| | - Rongxu Wu
- Section of Cardiology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Gökhan M Mutlu
- Section of Pulmonary and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois, USA
- Institute for Integrative Physiology, University of Chicago, Chicago, Illinois, USA
| | - Alfredo J Garcia
- Section of Emergency Medicine, Department of Medicine, University of Chicago, Chicago, Illinois, USA
- Institute for Integrative Physiology, University of Chicago, Chicago, Illinois, USA
- The University of Chicago Neuroscience Institute, University of Chicago, Chicago, Illinois, USA
| | - Stephen L Archer
- Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Willard W Sharp
- Section of Emergency Medicine, Department of Medicine, University of Chicago, Chicago, Illinois, USA
- Institute for Integrative Physiology, University of Chicago, Chicago, Illinois, USA
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Wu D, Jansen-van Vuuren RD, Dasgupta A, Al-Qazazi R, Chen KH, Martin A, Mewburn JD, Alizadeh E, Lima PDA, Jones O, Colpman P, Breault NM, Emon IM, Jedlovčnik L, Zhao YY, Wells M, Sutendra G, Archer SL. Efficacy of Drpitor1a, a Dynamin-Related Protein 1 inhibitor, in Pulmonary Arterial Hypertension. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.21.572836. [PMID: 38187628 PMCID: PMC10769396 DOI: 10.1101/2023.12.21.572836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Rationale Dynamin-related protein 1 (Drp1), a large GTPase, mediates mitochondrial fission. Increased Drp1-mediated fission permits accelerated mitosis, contributing to hyperproliferation of pulmonary artery smooth muscle cells (PASMC), which characterizes pulmonary arterial hypertension (PAH). We developed a Drp1 inhibitor, Drpitor1a, and tested its ability to regress PAH. Objectives Assess Drpitor1a's efficacy and toxicity in: a)normal and PAH human PASMC (hPASMC); b)normal rats versus rats with established monocrotaline (MCT)-induced PAH. Methods Drpitor1a's effects on recombinant and endogenous Drp1-GTPase activity, mitochondrial fission, and cell proliferation were studied in hPASMCs (normal=3; PAH=5). Drpitor1a's pharmacokinetics and tissue concentrations were measured (n=3 rats/sex). In a pilot study (n=3-4/sex/dose), Drpitor1a (1mg/kg/48-hours, intravenous) reduced adverse PA remodeling only in females. Consequently, we compared Drpitor1a to vehicle in normal (n=6 versus 8) and MCT-PAH (n=9 and 11) females, respectively. Drpitor1a treatment began 17-days post-MCT with echocardiography and cardiac catheterization performed 28-29 days post-MCT. Results Drpitor1a inhibited recombinant and endogenous Drp1 GTPase activity, which was increased in PAH hPASMC. Drpitor1a inhibited mitochondrial fission and proliferation and induced apoptosis, in PAH hPASMC but not normal hPASMC. Drpitor1a tissue levels were higher in female versus male RVs. In MCT-PAH females, Drpitor1a regressed PA obstruction, lowered pulmonary vascular resistance, and improved RV function, without hematologic, renal, or hepatic toxicity. Conclusions Drpitor1a inhibits Drp1 GTPase, reduces mitochondrial fission, and inhibits cell proliferation in PAH hPASMC. Drpitor1a caused no toxicity in MCT-PAH and had no significant effect on normal rats or hPASMCs. Drpitor1a is a potential PAH therapeutic which displays an interesting therapeutic sexual dimorphism.
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Zhang L, Xie X, Tao J, Wang S, Hu M, Wang X, Yu Z, Xu L, Lin Y, Wu W, Cheng J, Wu L, Liu W, Gao R, Wang J. Mystery of bisphenol F-induced nonalcoholic fatty liver disease-like changes: Roles of Drp1-mediated abnormal mitochondrial fission in lipid droplet deposition. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166831. [PMID: 37683851 DOI: 10.1016/j.scitotenv.2023.166831] [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: 07/03/2023] [Revised: 08/31/2023] [Accepted: 09/02/2023] [Indexed: 09/10/2023]
Abstract
As one of the major substitutes for bisphenol A (BPA), bisphenol F (BPF) has been widely used. Our previous study demonstrated that BPF exposure facilitates lipid droplet deposition in hepatic cells, contributing to nonalcoholic fatty liver disease (NAFLD)-like changes. However, the underlying mechanisms remain poorly understood. Here, with a metabolic cage system, we observed the perturbation of energy metabolism in mice treated with BPF. BPF obviously suppressed metabolic capacity, which manifested as decreased energy expenditure, low O2 consumption and CO2 levels in mice. Consistent with the in vivo results, a Seahorse XF Cell Mito Stress Test showed significant reductions in mitochondrial ATP production capacity, maximum respiratory capacity, and residual respiratory capacity after BPF treatment in an in vitro study. Electron microscopy revealed a striking increase in mitochondrial fission that was synchronous with excessive expression and activation of dynamin-related protein 1 (Drp1). Intriguingly, chemical inhibition of Drp1 by Mdivi-1 and/or silencing of Drp1 dramatically hampered mitochondrial fission and ameliorated BPF-induced lipid droplet deposition both in mouse liver and human hepatic cells. Mechanistically, mitochondrial dynamics imbalance played prominent roles in these processes, since suppression of Drp1 by chemical inhibition or knockdown substantially reversed BPF-induced mitochondrial fission and ameliorated the suppression of mitochondrial metabolism as well as excessive mitochondrial ROS, which was verified to be key to lipid droplet deposition. Collectively, the findings of the current study reveal previously unrecognized effects involving Drp1-mediated mitochondrial injury in BPF-induced lipid droplet deposition. Therefore, targeted intervention against mitochondrial dysfunction may be a promising therapeutic strategy for BPF-induced NAFLD-like changes.
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Affiliation(s)
- Linwei Zhang
- Department of Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
| | - Xuexue Xie
- Department of Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
| | - Jingxian Tao
- Department of Hygienic Analysis and Detection, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Sizhe Wang
- Department of Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
| | - Miaoyang Hu
- Department of Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
| | - Xi Wang
- Department of Hygienic Analysis and Detection, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Zheng Yu
- Department of Hygienic Analysis and Detection, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Liuting Xu
- Department of Hygienic Analysis and Detection, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yuxin Lin
- Department of Hygienic Analysis and Detection, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Weilan Wu
- Department of Hygienic Analysis and Detection, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Jie Cheng
- Department of Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
| | - Linlin Wu
- Department of Hygienic Analysis and Detection, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China; The Affiliated Wuxi Center for Disease Control and Prevention of Nanjing Medical University, Wuxi 214000, China
| | - Wenwei Liu
- The Affiliated Wuxi Center for Disease Control and Prevention of Nanjing Medical University, Wuxi 214000, China
| | - Rong Gao
- Department of Hygienic Analysis and Detection, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
| | - Jun Wang
- Department of Toxicology, the Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China; China International Cooperation Center for Environment and Human Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu 211166, China.
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Gomez-Deza J, Slavutsky AL, Nebiyou M, Le Pichon CE. Local production of reactive oxygen species drives vincristine-induced axon degeneration. Cell Death Dis 2023; 14:807. [PMID: 38065950 PMCID: PMC10709426 DOI: 10.1038/s41419-023-06227-8] [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: 11/11/2022] [Revised: 08/27/2023] [Accepted: 10/18/2023] [Indexed: 12/18/2023]
Abstract
Neurological side effects arising from chemotherapy, such as severe pain and cognitive impairment, are a major concern for cancer patients. These major side effects can lead to reduction or termination of chemotherapy medication in patients, negatively impacting their prognoses. With cancer survival rates improving dramatically, addressing side effects of cancer treatment has become pressing. Here, we use iPSC-derived human neurons to investigate the molecular mechanisms that lead to neurotoxicity induced by vincristine, a common chemotherapeutic used to treat solid tumors. Our results uncover a novel mechanism by which vincristine causes a local increase in mitochondrial proteins that produce reactive oxygen species (ROS) in the axon. Vincristine triggers a cascade of axon pathology, causing mitochondrial dysfunction that leads to elevated axonal ROS levels and SARM1-dependent axon degeneration. Importantly, we show that the neurotoxic effect of increased axonal ROS can be mitigated by the small molecule mitochondrial division inhibitor 1 (mdivi-1) and antioxidants glutathione and mitoquinone, identifying a novel therapeutic avenue to treat the neurological effects of chemotherapy.
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Affiliation(s)
- Jorge Gomez-Deza
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Anastasia L Slavutsky
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Matthew Nebiyou
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Claire E Le Pichon
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA.
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Quan Y, Shou D, Yang S, Cheng J, Li Y, Huang C, Chen H, Zhou Y. Mdivi1 ameliorates mitochondrial dysfunction in non-alcoholic steatohepatitis by inhibiting JNK/MFF signaling. J Gastroenterol Hepatol 2023; 38:2215-2227. [PMID: 37839851 DOI: 10.1111/jgh.16372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/14/2023] [Accepted: 09/20/2023] [Indexed: 10/17/2023]
Abstract
BACKGROUND AND AIMS Mitochondrial dysfunction plays a crucial role in the progression of non-alcoholic steatohepatitis (NASH). Mitochondrial division inhibitor 1 (Mdivi1) is a potential inhibitor of dynamin-related protein (Drp1) and mitochondrial fission. However, the therapeutic effect of Mdivi1 against NASH and its underlying molecular mechanisms remain unclear. METHODS In this study, we established mouse models of NASH by inducing high-fat/high-cholesterol (HFHC) or methionine- and choline-deficient (MCD) diets and treated the animals with 5 mg/kg/day Mdivi1 or placebo. RESULTS Treatment with Mdivi1 significantly alleviated diet-induced fatty liver phenotypes, including increased liver weight/body weight ratio, insulin resistance, hepatic lipid accumulation, steatohepatitis, and liver injury. Furthermore, Mdivi1 treatment suppressed HFHC or MCD diet-induced changes in the expression of genes related to lipid metabolism and inflammatory cytokines. Additionally, Mdivi1 reduced macrophage infiltration in the injured liver and promoted polarization of macrophages towards the M1 phenotype. At the molecular level, Mdivi1 attenuated mitochondrial fission by reducing Drp1 activation and expression, thereby decreasing mitochondrial reactive oxygen species accumulation and mitochondrial DNA damage. Moreover, Mdivi1-treated mice exhibited elevated levels of phosphorylated-c-Jun N-terminal kinase (p-JNK), mitochondrial fission factor (MFF), cleaved caspase 3 protein, and TUNEL-positive cell expression in the liver, suggesting that Mdivi1 might ameliorate mitochondrial dysfunction and reduce hepatocyte apoptosis by inhibiting the JNK/MFF pathway. CONCLUSION Collectively, Mdivi1 protected against diet-induced NASH by restoring mitochondrial homeostasis and function, potentially through its inhibitory effect on the JNK/MFF pathway. Consequently, further investigation of Mdivi1 as a promising drug for NASH treatment is warranted.
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Affiliation(s)
- Ying Quan
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Diwen Shou
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Siqi Yang
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Jiemin Cheng
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Yongqiang Li
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Chen Huang
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Huiting Chen
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Yongjian Zhou
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
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Mangrulkar SV, Wankhede NL, Kale MB, Upaganlawar AB, Taksande BG, Umekar MJ, Anwer MK, Dailah HG, Mohan S, Behl T. Mitochondrial Dysfunction as a Signaling Target for Therapeutic Intervention in Major Neurodegenerative Disease. Neurotox Res 2023; 41:708-729. [PMID: 37162686 DOI: 10.1007/s12640-023-00647-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/29/2022] [Accepted: 04/08/2023] [Indexed: 05/11/2023]
Abstract
Neurodegenerative diseases (NDD) are incurable and the most prevalent cognitive and motor disorders of elderly. Mitochondria are essential for a wide range of cellular processes playing a pivotal role in a number of cellular functions like metabolism, intracellular signaling, apoptosis, and immunity. A plethora of evidence indicates the central role of mitochondrial functions in pathogenesis of many aging related NDD. Considering how mitochondria function in neurodegenerative diseases, oxidative stress, and mutations in mtDNA both contribute to aging. Many substantial reports suggested the involvement of numerous contributing factors including, mitochondrial dysfunction, oxidative stress, mitophagy, accumulation of somatic mtDNA mutations, compromised mitochondrial dynamics, and transport within axons in neurodegenerative disorders including Alzheimer's disease, Parkinson's disease, Huntington's disease, and Amyotrophic Lateral Sclerosis. Therapies therefore target fundamental mitochondrial processes such as energy metabolism, free-radical generation, mitochondrial biogenesis, mitochondrial redox state, mitochondrial dynamics, mitochondrial protein synthesis, mitochondrial quality control, and metabolism hold great promise to develop pharmacological based therapies in NDD. By emphasizing the most efficient pharmacological strategies to target dysfunction of mitochondria in the treatment of neurodegenerative diseases, this review serves the scientific community engaged in translational medical science by focusing on the establishment of novel, mitochondria-targeted treatment strategies.
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Affiliation(s)
| | - Nitu L Wankhede
- Smt. Shantabai Patil College of Diploma in Pharmacy, Kamptee, Nagpur, Maharashtra, India
| | - Mayur B Kale
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra, India
| | - Aman B Upaganlawar
- SNJB's Shriman Sureshdada Jain College of Pharmacy, Neminagar, Chandwad, Nasik, Maharashta, India
| | - Brijesh G Taksande
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra, India
| | - Milind J Umekar
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra, India
| | - Md Khalid Anwer
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, 16278, Saudi Arabia
| | - Hamad Ghaleb Dailah
- Research and Scientific Studies Unit, College of Nursing, Jazan University, Jazan, Saudi Arabia
| | - Syam Mohan
- Substance Abuse and Toxicology Research Center, Jazan University, Jazan, Saudi Arabia
- School of Health Sciences and Technology, University of Petroleum and Energy Studies, Dehradun, Uttarakhand, India
- Centre for Transdisciplinary Research, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Science, Saveetha University, Chennai, India
| | - Tapan Behl
- School of Health Sciences and Technology, University of Petroleum and Energy Studies, Dehradun, Uttarakhand, India.
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Wang Y, Dai X, Li H, Jiang H, Zhou J, Zhang S, Guo J, Shen L, Yang H, Lin J, Yan H. The role of mitochondrial dynamics in disease. MedComm (Beijing) 2023; 4:e462. [PMID: 38156294 PMCID: PMC10753647 DOI: 10.1002/mco2.462] [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: 09/18/2023] [Revised: 11/14/2023] [Accepted: 12/03/2023] [Indexed: 12/30/2023] Open
Abstract
Mitochondria are multifaceted and dynamic organelles regulating various important cellular processes from signal transduction to determining cell fate. As dynamic properties of mitochondria, fusion and fission accompanied with mitophagy, undergo constant changes in number and morphology to sustain mitochondrial homeostasis in response to cell context changes. Thus, the dysregulation of mitochondrial dynamics and mitophagy is unsurprisingly related with various diseases, but the unclear underlying mechanism hinders their clinical application. In this review, we summarize the recent developments in the molecular mechanism of mitochondrial dynamics and mitophagy, particularly the different roles of key components in mitochondrial dynamics in different context. We also summarize the roles of mitochondrial dynamics and target treatment in diseases related to the cardiovascular system, nervous system, respiratory system, and tumor cell metabolism demanding high-energy. In these diseases, it is common that excessive mitochondrial fission is dominant and accompanied by impaired fusion and mitophagy. But there have been many conflicting findings about them recently, which are specifically highlighted in this view. We look forward that these findings will help broaden our understanding of the roles of the mitochondrial dynamics in diseases and will be beneficial to the discovery of novel selective therapeutic targets.
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Affiliation(s)
- Yujuan Wang
- Immunotherapy LaboratoryQinghai Tibet Plateau Research InstituteSouthwest Minzu UniversityChengduSichuanChina
| | - Xinyan Dai
- Immunotherapy LaboratoryQinghai Tibet Plateau Research InstituteSouthwest Minzu UniversityChengduSichuanChina
| | - Hui Li
- Immunotherapy LaboratoryCollege of PharmacologySouthwest Minzu UniversityChengduSichuanChina
| | - Huiling Jiang
- Immunotherapy LaboratoryCollege of PharmacologySouthwest Minzu UniversityChengduSichuanChina
| | - Junfu Zhou
- Immunotherapy LaboratoryCollege of PharmacologySouthwest Minzu UniversityChengduSichuanChina
| | - Shiying Zhang
- Immunotherapy LaboratoryQinghai Tibet Plateau Research InstituteSouthwest Minzu UniversityChengduSichuanChina
| | - Jiacheng Guo
- Immunotherapy LaboratoryQinghai Tibet Plateau Research InstituteSouthwest Minzu UniversityChengduSichuanChina
| | - Lidu Shen
- Immunotherapy LaboratoryCollege of PharmacologySouthwest Minzu UniversityChengduSichuanChina
| | - Huantao Yang
- Immunotherapy LaboratoryQinghai Tibet Plateau Research InstituteSouthwest Minzu UniversityChengduSichuanChina
| | - Jie Lin
- Immunotherapy LaboratoryCollege of PharmacologySouthwest Minzu UniversityChengduSichuanChina
| | - Hengxiu Yan
- Immunotherapy LaboratoryCollege of PharmacologySouthwest Minzu UniversityChengduSichuanChina
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Dong WT, Long LH, Deng Q, Liu D, Wang JL, Wang F, Chen JG. Mitochondrial fission drives neuronal metabolic burden to promote stress susceptibility in male mice. Nat Metab 2023; 5:2220-2236. [PMID: 37985735 DOI: 10.1038/s42255-023-00924-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 10/09/2023] [Indexed: 11/22/2023]
Abstract
Neurons are particularly susceptible to energy fluctuations in response to stress. Mitochondrial fission is highly regulated to generate ATP via oxidative phosphorylation; however, the role of a regulator of mitochondrial fission in neuronal energy metabolism and synaptic efficacy under chronic stress remains elusive. Here, we show that chronic stress promotes mitochondrial fission in the medial prefrontal cortex via activating dynamin-related protein 1 (Drp1), resulting in mitochondrial dysfunction in male mice. Both pharmacological inhibition and genetic reduction of Drp1 ameliorates the deficit of excitatory synaptic transmission and stress-related depressive-like behavior. In addition, enhancing Drp1 fission promotes stress susceptibility, which is alleviated by coenzyme Q10, which potentiates mitochondrial ATP production. Together, our findings unmask the role of Drp1-dependent mitochondrial fission in the deficits of neuronal metabolic burden and depressive-like behavior and provides medication basis for metabolism-related emotional disorders.
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Affiliation(s)
- Wan-Ting Dong
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li-Hong Long
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China
- The Research Center for Depression, Tongji Medical College, Huazhong University of Science, Wuhan, China
- The Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, China
| | - Qiao Deng
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Duo Liu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jia-Lin Wang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fang Wang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China.
- The Research Center for Depression, Tongji Medical College, Huazhong University of Science, Wuhan, China.
- The Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, China.
| | - Jian-Guo Chen
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China.
- The Research Center for Depression, Tongji Medical College, Huazhong University of Science, Wuhan, China.
- The Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China, Wuhan, China.
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Hernandez-Resendiz S, Prakash A, Loo SJ, Semenzato M, Chinda K, Crespo-Avilan GE, Dam LC, Lu S, Scorrano L, Hausenloy DJ. Targeting mitochondrial shape: at the heart of cardioprotection. Basic Res Cardiol 2023; 118:49. [PMID: 37955687 PMCID: PMC10643419 DOI: 10.1007/s00395-023-01019-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/14/2023]
Abstract
There remains an unmet need to identify novel therapeutic strategies capable of protecting the myocardium against the detrimental effects of acute ischemia-reperfusion injury (IRI), to reduce myocardial infarct (MI) size and prevent the onset of heart failure (HF) following acute myocardial infarction (AMI). In this regard, perturbations in mitochondrial morphology with an imbalance in mitochondrial fusion and fission can disrupt mitochondrial metabolism, calcium homeostasis, and reactive oxygen species production, factors which are all known to be critical determinants of cardiomyocyte death following acute myocardial IRI. As such, therapeutic approaches directed at preserving the morphology and functionality of mitochondria may provide an important strategy for cardioprotection. In this article, we provide an overview of the alterations in mitochondrial morphology which occur in response to acute myocardial IRI, and highlight the emerging therapeutic strategies for targeting mitochondrial shape to preserve mitochondrial function which have the future therapeutic potential to improve health outcomes in patients presenting with AMI.
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Affiliation(s)
- Sauri Hernandez-Resendiz
- Duke-NUS Medical School, Cardiovascular and Metabolic Disorders Programme, Singapore, Singapore
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore
| | - Aishwarya Prakash
- Duke-NUS Medical School, Cardiovascular and Metabolic Disorders Programme, Singapore, Singapore
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore
| | - Sze Jie Loo
- Duke-NUS Medical School, Cardiovascular and Metabolic Disorders Programme, Singapore, Singapore
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore
| | | | - Kroekkiat Chinda
- Department of Physiology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Gustavo E Crespo-Avilan
- Duke-NUS Medical School, Cardiovascular and Metabolic Disorders Programme, Singapore, Singapore
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore
| | - Linh Chi Dam
- Duke-NUS Medical School, Cardiovascular and Metabolic Disorders Programme, Singapore, Singapore
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore
| | - Shengjie Lu
- Duke-NUS Medical School, Cardiovascular and Metabolic Disorders Programme, Singapore, Singapore
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore
| | - Luca Scorrano
- Veneto Institute of Molecular Medicine, Padova, Italy
- Department of Biology, University of Padova, Padova, Italy
| | - Derek J Hausenloy
- Duke-NUS Medical School, Cardiovascular and Metabolic Disorders Programme, Singapore, Singapore.
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore.
- National University Singapore, Yong Loo Lin School of Medicine, Singapore, Singapore.
- University College London, The Hatter Cardiovascular Institute, London, UK.
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Srivastava A, Johnson M, Renna HA, Sheehan KM, Ahmed S, Palaia T, Pinkhasov A, Gomolin IH, De Leon J, Reiss AB. Therapeutic Potential of P110 Peptide: New Insights into Treatment of Alzheimer's Disease. Life (Basel) 2023; 13:2156. [PMID: 38004296 PMCID: PMC10672680 DOI: 10.3390/life13112156] [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: 09/18/2023] [Revised: 10/20/2023] [Accepted: 10/30/2023] [Indexed: 11/26/2023] Open
Abstract
Mitochondrial degeneration in various neurodegenerative diseases, specifically in Alzheimer's disease, involves excessive mitochondrial fission and reduced fusion, leading to cell damage. P110 is a seven-amino acid peptide that restores mitochondrial dynamics by acting as an inhibitor of mitochondrial fission. However, the role of P110 as a neuroprotective agent in AD remains unclear. Therefore, we performed cell culture studies to evaluate the neuroprotective effect of P110 on amyloid-β accumulation and mitochondrial functioning. Human SH-SY5Y neuronal cells were incubated with 1 µM and 10 µM of P110, and Real-Time PCR and Western blot analysis were done to quantify the expression of genes pertaining to AD and neuronal health. Exposure of SH-SY5Y cells to P110 significantly increased APP mRNA levels at 1 µM, while BACE1 mRNA levels were increased at both 1 µM and 10 µM. However, protein levels of both APP and BACE1 were significantly reduced at 10 µM of P110. Further, P110 treatment significantly increased ADAM10 and Klotho protein levels at 10 µM. In addition, P110 exposure significantly increased active mitochondria and reduced ROS in live SH-SY5Y cells at both 1 µM and 10 µM concentrations. Taken together, our results indicate that P110 might be useful in attenuating amyloid-β generation and improving neuronal health by maintaining mitochondrial function in neurons.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Allison B. Reiss
- Department of Medicine and Biomedical Research Institute, NYU Grossman Long Island School of Medicine, Mineola, NY 11501, USA; (A.S.); (M.J.); (H.A.R.); (K.M.S.); (S.A.); (T.P.); (A.P.); (I.H.G.); (J.D.L.)
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Wu NS, Ma IC, Lin YF, Ko HJ, Loh JK, Hong YR. The mystery of phospho-Drp1 with four adaptors in cell cycle: when mitochondrial fission couples to cell fate decisions. Cell Cycle 2023; 22:2485-2503. [PMID: 38053243 PMCID: PMC10802209 DOI: 10.1080/15384101.2023.2289753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/26/2023] [Indexed: 12/07/2023] Open
Abstract
Recent study had deepened our knowledge of the mitochondrial dynamics to classify mitochondrial fission into two types. To further clarify the relationship between the two distinct fission machinery and the four major adaptors of Drp1, we propose a model of mechanism elucidating the multiple functions of phospho-Drp1 with its adaptors during cell cycle and providing in-depth insights into the molecular basis and evolutionary implications in depth. The model highlights not only the clustering characteristics of different phospho-Drp1 with respective subsets of mitochondrial pro-fission adaptors but also the correlation, crosstalk and shifting between different clustering of phosphorylated Drp1-adaptors during different key fission situations. Particularly, phospho-Drp1 (Ser616) couples with Mff/MiD51 to exert mitochondrial division and phospho-Drp1 (Ser637) couples with MiD49/Fis1 to execute mitophagy in M-phase. We then apply the model to address the relationship of mitochondrial dynamics to Parkinson's disease (PD) and carcinogenesis. Our proposed model is indeed compatible with current research results and pathological observations, providing promising directions for future treatment design.
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Affiliation(s)
- Nian-Siou Wu
- Department of Education, Hsin-Chu Branch, National Taiwan University Hospital, Hsinchu, Taiwan
- PhD Program in Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan
| | - I-Chu Ma
- Division of Neurology, China Medical University Hospital, Taichung, Taiwan
| | - Yi-Fan Lin
- Department of Education, National Taiwan University Hospital, Taipei, Taiwan
| | - Huey-Jiun Ko
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Joon-Khim Loh
- Department of Neurosurgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yi-Ren Hong
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institutes of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan
- Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
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46
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Kugler BA, Lourie J, Berger N, Lin N, Nguyen P, DosSantos E, Ali A, Sesay A, Rosen HG, Kalemba B, Hendricks GM, Houmard JA, Sesaki H, Gona P, You T, Yan Z, Zou K. Partial skeletal muscle-specific Drp1 knockout enhances insulin sensitivity in diet-induced obese mice, but not in lean mice. Mol Metab 2023; 77:101802. [PMID: 37690520 PMCID: PMC10511484 DOI: 10.1016/j.molmet.2023.101802] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 08/22/2023] [Accepted: 09/05/2023] [Indexed: 09/12/2023] Open
Abstract
OBJECTIVE Dynamin-related protein 1 (Drp1) is the key regulator of mitochondrial fission. We and others have reported a strong correlation between enhanced Drp1 activity and impaired skeletal muscle insulin sensitivity. This study aimed to determine whether Drp1 directly regulates skeletal muscle insulin sensitivity and whole-body glucose homeostasis. METHODS We employed tamoxifen-inducible skeletal muscle-specific heterozygous Drp1 knockout mice (mDrp1+/-). Male mDrp1+/- and wildtype (WT) mice were fed with either a high-fat diet (HFD) or low-fat diet (LFD) for four weeks, followed by tamoxifen injections for five consecutive days, and remained on their respective diet for another four weeks. In addition, we used primary human skeletal muscle cells (HSkMC) from lean, insulin-sensitive, and severely obese, insulin-resistant humans and transfected the cells with either a Drp1 shRNA (shDrp1) or scramble shRNA construct. Skeletal muscle and whole-body insulin sensitivity, skeletal muscle insulin signaling, mitochondrial network morphology, respiration, and H2O2 production were measured. RESULTS Partial deletion of the Drp1 gene in skeletal muscle led to improved whole-body glucose tolerance and insulin sensitivity (P < 0.05) in diet-induced obese, insulin-resistant mice but not in lean mice. Analyses of mitochondrial structure and function revealed that the partial deletion of the Drp1 gene restored mitochondrial dynamics, improved mitochondrial morphology, and reduced mitochondrial Complex I- and II-derived H2O2 (P < 0.05) under the condition of diet-induced obesity. In addition, partial deletion of Drp1 in skeletal muscle resulted in elevated circulating FGF21 (P < 0.05) and in a trend towards increase of FGF21 expression in skeletal muscle tissue (P = 0.095). In primary myotubes derived from severely obese, insulin-resistant humans, ShRNA-induced-knockdown of Drp1 resulted in enhanced insulin signaling, insulin-stimulated glucose uptake and reduced cellular reactive oxygen species (ROS) content compared to the shScramble-treated myotubes from the same donors (P < 0.05). CONCLUSION These data demonstrate that partial loss of skeletal muscle-specific Drp1 expression is sufficient to improve whole-body glucose homeostasis and insulin sensitivity under obese, insulin-resistant conditions, which may be, at least in part, due to reduced mitochondrial H2O2 production. In addition, our findings revealed divergent effects of Drp1 on whole-body metabolism under lean healthy or obese insulin-resistant conditions in mice.
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Affiliation(s)
- Benjamin A Kugler
- Department of Exercise and Health Sciences, Robert and Donna Manning College of Nursing and Health Sciences, University of Massachusetts Boston, Boston, MA, USA
| | - Jared Lourie
- Department of Exercise and Health Sciences, Robert and Donna Manning College of Nursing and Health Sciences, University of Massachusetts Boston, Boston, MA, USA
| | - Nicolas Berger
- Department of Exercise and Health Sciences, Robert and Donna Manning College of Nursing and Health Sciences, University of Massachusetts Boston, Boston, MA, USA
| | - Nana Lin
- Department of Exercise and Health Sciences, Robert and Donna Manning College of Nursing and Health Sciences, University of Massachusetts Boston, Boston, MA, USA
| | - Paul Nguyen
- Department of Exercise and Health Sciences, Robert and Donna Manning College of Nursing and Health Sciences, University of Massachusetts Boston, Boston, MA, USA
| | - Edzana DosSantos
- Department of Exercise and Health Sciences, Robert and Donna Manning College of Nursing and Health Sciences, University of Massachusetts Boston, Boston, MA, USA
| | - Abir Ali
- Department of Biology, University of Massachusetts Boston, Boston, MA, USA
| | - Amira Sesay
- Department of Biology, University of Massachusetts Boston, Boston, MA, USA
| | - H Grace Rosen
- Department of Biology, University of Massachusetts Boston, Boston, MA, USA
| | - Baby Kalemba
- Department of Exercise and Health Sciences, Robert and Donna Manning College of Nursing and Health Sciences, University of Massachusetts Boston, Boston, MA, USA
| | - Gregory M Hendricks
- Department of Radiology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Joseph A Houmard
- Department of Kinesiology, East Carolina University, Greenville, NC, USA; Human Performance Laboratory, East Carolina University, Greenville, NC, USA
| | - Hiromi Sesaki
- Department of Cell Biology, Johns Hopkins University, Baltimore, MD, USA
| | - Philimon Gona
- Department of Exercise and Health Sciences, Robert and Donna Manning College of Nursing and Health Sciences, University of Massachusetts Boston, Boston, MA, USA
| | - Tongjian You
- Department of Exercise and Health Sciences, Robert and Donna Manning College of Nursing and Health Sciences, University of Massachusetts Boston, Boston, MA, USA
| | - Zhen Yan
- Fralin Biomedical Research Institute Center for Exercise Medicine Research, Virginia Tech Carilion, Roanoke, VA, USA; Department of Human Nutrition, Foods, and Exercise, College of Agriculture and Life Sciences, Virginia Tech, Blacksburg, VA, USA
| | - Kai Zou
- Department of Exercise and Health Sciences, Robert and Donna Manning College of Nursing and Health Sciences, University of Massachusetts Boston, Boston, MA, USA.
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Grichine A, Jacob S, Eckly A, Villaret J, Joubert C, Appaix F, Pezet M, Ribba AS, Denarier E, Mazzega J, Rinckel JY, Lafanechère L, Elena-Herrmann B, Rowley JW, Sadoul K. The fate of mitochondria during platelet activation. Blood Adv 2023; 7:6290-6302. [PMID: 37624769 PMCID: PMC10589785 DOI: 10.1182/bloodadvances.2023010423] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Blood platelets undergo several successive motor-driven reorganizations of the cytoskeleton when they are recruited to an injured part of a vessel. These reorganizations take place during the platelet activation phase, the spreading process on the injured vessel or between fibrin fibers of the forming clot, and during clot retraction. All these steps require a lot of energy, especially the retraction of the clot when platelets develop strong forces similar to those of muscle cells. Platelets can produce energy through glycolysis and mitochondrial respiration. However, although resting platelets have only 5 to 8 individual mitochondria, they produce adenosine triphosphate predominantly via oxidative phosphorylation. Activated, spread platelets show an increase in size compared with resting platelets, and the question arises as to where the few mitochondria are located in these larger platelets. Using expansion microscopy, we show that the number of mitochondria per platelet is increased in spread platelets. Live imaging and focused ion beam-scanning electron microscopy suggest that a mitochondrial fission event takes place during platelet activation. Fission is Drp1 dependent because Drp1-deficient platelets have fused mitochondria. In nucleated cells, mitochondrial fission is associated with a shift to a glycolytic phenotype, and using clot retraction assays, we show that platelets have a more glycolytic energy production during clot retraction and that Drp1-deficient platelets show a defect in clot retraction.
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Affiliation(s)
- Alexei Grichine
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Shancy Jacob
- Molecular Medicine Program, University of Utah, Salt Lake City, UT
| | - Anita Eckly
- INSERM, EFS Grand Est, Biologie et Pharmacologie des Plaquettes Sanguines Unité Mixed de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, University of Strasbourg, Strasbourg, France
| | - Joran Villaret
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Clotilde Joubert
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Florence Appaix
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Mylène Pezet
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Anne-Sophie Ribba
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Eric Denarier
- INSERM U1216, Commissariat à l'Energie Atomique, Grenoble Institute of Neuroscience, University Grenoble Alpes, Grenoble, France
| | - Jacques Mazzega
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Jean-Yves Rinckel
- INSERM, EFS Grand Est, Biologie et Pharmacologie des Plaquettes Sanguines Unité Mixed de Recherche-S 1255, Fédération de Médecine Translationnelle de Strasbourg, University of Strasbourg, Strasbourg, France
| | - Laurence Lafanechère
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Bénédicte Elena-Herrmann
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
| | - Jesse W. Rowley
- Molecular Medicine Program, University of Utah, Salt Lake City, UT
| | - Karin Sadoul
- INSERM U1209, Centre National de la Recherche Scientifique Unité Mixed de Recherche 5309, Institute for Advanced Biosciences, University Grenoble Alpes, Grenoble, France
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Hao S, Huang H, Ma RY, Zeng X, Duan CY. Multifaceted functions of Drp1 in hypoxia/ischemia-induced mitochondrial quality imbalance: from regulatory mechanism to targeted therapeutic strategy. Mil Med Res 2023; 10:46. [PMID: 37833768 PMCID: PMC10571487 DOI: 10.1186/s40779-023-00482-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
Hypoxic-ischemic injury is a common pathological dysfunction in clinical settings. Mitochondria are sensitive organelles that are readily damaged following ischemia and hypoxia. Dynamin-related protein 1 (Drp1) regulates mitochondrial quality and cellular functions via its oligomeric changes and multiple modifications, which plays a role in mediating the induction of multiple organ damage during hypoxic-ischemic injury. However, there is active controversy and gaps in knowledge regarding the modification, protein interaction, and functions of Drp1, which both hinder and promote development of Drp1 as a novel therapeutic target. Here, we summarize recent findings on the oligomeric changes, modification types, and protein interactions of Drp1 in various hypoxic-ischemic diseases, as well as the Drp1-mediated regulation of mitochondrial quality and cell functions following ischemia and hypoxia. Additionally, potential clinical translation prospects for targeting Drp1 are discussed. This review provides new ideas and targets for proactive interventions on multiple organ damage induced by various hypoxic-ischemic diseases.
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Affiliation(s)
- Shuai Hao
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
- Research Institute of General Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210002 China
| | - He Huang
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
| | - Rui-Yan Ma
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
- Department of Cardiovascular Surgery, Xinqiao Hospital, Army Medical University, Chongqing, 400037 China
| | - Xue Zeng
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
- Institute for Brain Science and Disease, Chongqing Medical University, Chongqing, 400010 China
| | - Chen-Yang Duan
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
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Susser LI, Nguyen MA, Geoffrion M, Emerton C, Ouimet M, Khacho M, Rayner KJ. Mitochondrial Fragmentation Promotes Inflammation Resolution Responses in Macrophages via Histone Lactylation. Mol Cell Biol 2023; 43:531-546. [PMID: 37807652 PMCID: PMC10569354 DOI: 10.1080/10985549.2023.2253131] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 08/10/2023] [Indexed: 10/10/2023] Open
Abstract
During the inflammatory response, macrophage phenotypes can be broadly classified as pro-inflammatory/classically activated "M1", or pro-resolving/alternatively "M2" macrophages. Although the classification of macrophages is general and assumes there are distinct phenotypes, in reality macrophages exist across a spectrum and must transform from a pro-inflammatory state to a proresolving state following an inflammatory insult. To adapt to changing metabolic needs of the cell, mitochondria undergo fusion and fission, which have important implications for cell fate and function. We hypothesized that mitochondrial fission and fusion directly contribute to macrophage function during the pro-inflammatory and proresolving phases. In the present study, we find that mitochondrial length directly contributes to macrophage phenotype, primarily during the transition from a pro-inflammatory to a proresolving state. Phenocopying the elongated mitochondrial network (by disabling the fission machinery using siRNA) leads to a baseline reduction in the inflammatory marker IL-1β, but a normal inflammatory response to LPS, similar to control macrophages. In contrast, in macrophages with a phenocopied fragmented phenotype (by disabling the fusion machinery using siRNA) there is a heightened inflammatory response to LPS and increased signaling through the ATF4/c-Jun transcriptional axis compared to control macrophages. Importantly, macrophages with a fragmented mitochondrial phenotype show increased expression of proresolving mediator arginase 1 and increased phagocytic capacity. Promoting mitochondrial fragmentation caused an increase in cellular lactate, and an increase in histone lactylation which caused an increase in arginase 1 expression. These studies demonstrate that a fragmented mitochondrial phenotype is critical for the proresolving response in macrophages and specifically drive epigenetic changes via lactylation of histones following an inflammatory insult.
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Affiliation(s)
- Leah I. Susser
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Canada
- University of Ottawa Heart Institute, Ottawa, Canada
| | - My-Anh Nguyen
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Canada
- University of Ottawa Heart Institute, Ottawa, Canada
| | | | | | - Mireille Ouimet
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Canada
- University of Ottawa Heart Institute, Ottawa, Canada
| | - Mireille Khacho
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Canada
- Centre for Infection, Immunity & Inflammation, Faculty of Medicine, University of Ottawa, Ottawa, Canada
- Ottawa Institute of Systems Biology (OISB), Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - Katey J Rayner
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Canada
- University of Ottawa Heart Institute, Ottawa, Canada
- Centre for Infection, Immunity & Inflammation, Faculty of Medicine, University of Ottawa, Ottawa, Canada
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50
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Rocca C, Soda T, De Francesco EM, Fiorillo M, Moccia F, Viglietto G, Angelone T, Amodio N. Mitochondrial dysfunction at the crossroad of cardiovascular diseases and cancer. J Transl Med 2023; 21:635. [PMID: 37726810 PMCID: PMC10507834 DOI: 10.1186/s12967-023-04498-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 09/01/2023] [Indexed: 09/21/2023] Open
Abstract
A large body of evidence indicates the existence of a complex pathophysiological relationship between cardiovascular diseases and cancer. Mitochondria are crucial organelles whose optimal activity is determined by quality control systems, which regulate critical cellular events, ranging from intermediary metabolism and calcium signaling to mitochondrial dynamics, cell death and mitophagy. Emerging data indicate that impaired mitochondrial quality control drives myocardial dysfunction occurring in several heart diseases, including cardiac hypertrophy, myocardial infarction, ischaemia/reperfusion damage and metabolic cardiomyopathies. On the other hand, diverse human cancers also dysregulate mitochondrial quality control to promote their initiation and progression, suggesting that modulating mitochondrial homeostasis may represent a promising therapeutic strategy both in cardiology and oncology. In this review, first we briefly introduce the physiological mechanisms underlying the mitochondrial quality control system, and then summarize the current understanding about the impact of dysregulated mitochondrial functions in cardiovascular diseases and cancer. We also discuss key mitochondrial mechanisms underlying the increased risk of cardiovascular complications secondary to the main current anticancer strategies, highlighting the potential of strategies aimed at alleviating mitochondrial impairment-related cardiac dysfunction and tumorigenesis. It is hoped that this summary can provide novel insights into precision medicine approaches to reduce cardiovascular and cancer morbidities and mortalities.
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Affiliation(s)
- Carmine Rocca
- Cellular and Molecular Cardiovascular Pathophysiology Laboratory, Department of Biology, E and E.S. (DiBEST), University of Calabria, Arcavacata di Rende, 87036, Cosenza, Italy
| | - Teresa Soda
- Department of Health Science, University Magna Graecia of Catanzaro, 88100, Catanzaro, Italy
| | - Ernestina Marianna De Francesco
- Endocrinology Unit, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, 95122, Catania, Italy
| | - Marco Fiorillo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Francesco Moccia
- Laboratory of General Physiology, Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, 27100, Pavia, Italy
| | - Giuseppe Viglietto
- Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, 88100, Catanzaro, Italy
| | - Tommaso Angelone
- Cellular and Molecular Cardiovascular Pathophysiology Laboratory, Department of Biology, E and E.S. (DiBEST), University of Calabria, Arcavacata di Rende, 87036, Cosenza, Italy.
- National Institute of Cardiovascular Research (I.N.R.C.), 40126, Bologna, Italy.
| | - Nicola Amodio
- Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, 88100, Catanzaro, Italy.
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