1
|
Ren X, Zhou H, Sun Y, Fu H, Ran Y, Yang B, Yang F, Bjorklund M, Xu S. MIRO-1 interacts with VDAC-1 to regulate mitochondrial membrane potential in Caenorhabditis elegans. EMBO Rep 2023; 24:e56297. [PMID: 37306041 PMCID: PMC10398670 DOI: 10.15252/embr.202256297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 05/11/2023] [Accepted: 05/25/2023] [Indexed: 06/13/2023] Open
Abstract
Precise regulation of mitochondrial fusion and fission is essential for cellular activity and animal development. Imbalances between these processes can lead to fragmentation and loss of normal membrane potential in individual mitochondria. In this study, we show that MIRO-1 is stochastically elevated in individual fragmented mitochondria and is required for maintaining mitochondrial membrane potential. We further observe a higher level of membrane potential in fragmented mitochondria in fzo-1 mutants and wounded animals. Moreover, MIRO-1 interacts with VDAC-1, a crucial mitochondrial ion channel located in the outer mitochondrial membrane, and this interaction depends on the residues E473 of MIRO-1 and K163 of VDAC-1. The E473G point mutation disrupts their interaction, resulting in a reduction of the mitochondrial membrane potential. Our findings suggest that MIRO-1 regulates membrane potential and maintains mitochondrial activity and animal health by interacting with VDAC-1. This study provides insight into the mechanisms underlying the stochastic maintenance of membrane potential in fragmented mitochondria.
Collapse
Affiliation(s)
- Xuecong Ren
- Center for Stem Cell and Regenerative Medicine and Department of Burns and Wound Repair of the Second Affiliated HospitalThe Zhejiang University‐University of Edinburgh Institute, Zhejiang University School of MedicineHangzhouChina
| | - Hengda Zhou
- Center for Stem Cell and Regenerative Medicine and Department of Burns and Wound Repair of the Second Affiliated HospitalThe Zhejiang University‐University of Edinburgh Institute, Zhejiang University School of MedicineHangzhouChina
- International Biomedicine‐X Research Center of the Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Yujie Sun
- Center for Stem Cell and Regenerative Medicine and Department of Burns and Wound Repair of the Second Affiliated HospitalThe Zhejiang University‐University of Edinburgh Institute, Zhejiang University School of MedicineHangzhouChina
- International Biomedicine‐X Research Center of the Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Hongying Fu
- Center for Stem Cell and Regenerative Medicine and Department of Burns and Wound Repair of the Second Affiliated HospitalThe Zhejiang University‐University of Edinburgh Institute, Zhejiang University School of MedicineHangzhouChina
| | - Yu Ran
- Zhejiang Provincial Key Laboratory for Cancer Molecular Cell BiologyLife Sciences Institute, Zhejiang UniversityHangzhouChina
| | - Bing Yang
- Zhejiang Provincial Key Laboratory for Cancer Molecular Cell BiologyLife Sciences Institute, Zhejiang UniversityHangzhouChina
| | - Fan Yang
- Department of Biophysics and Kidney Disease Center of the First Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Mikael Bjorklund
- Centre for Cellular Biology and SignallingZhejiang University‐University of Edinburgh InstituteHainingChina
- School of MedicineZhejiang UniversityHangzhouChina
| | - Suhong Xu
- Center for Stem Cell and Regenerative Medicine and Department of Burns and Wound Repair of the Second Affiliated HospitalThe Zhejiang University‐University of Edinburgh Institute, Zhejiang University School of MedicineHangzhouChina
- International Biomedicine‐X Research Center of the Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Department of Reproductive Endocrinology, Women's HospitalZhejiang University School of MedicineHangzhouChina
| |
Collapse
|
2
|
Pero ME, Chowdhury F, Bartolini F. Role of tubulin post-translational modifications in peripheral neuropathy. Exp Neurol 2023; 360:114274. [PMID: 36379274 DOI: 10.1016/j.expneurol.2022.114274] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/06/2022] [Accepted: 11/08/2022] [Indexed: 11/14/2022]
Abstract
Peripheral neuropathy is a common disorder that results from nerve damage in the periphery. The degeneration of sensory axon terminals leads to changes or loss of sensory functions, often manifesting as debilitating pain, weakness, numbness, tingling, and disability. The pathogenesis of most peripheral neuropathies remains to be fully elucidated. Cumulative evidence from both early and recent studies indicates that tubulin damage may provide a common underlying mechanism of axonal injury in various peripheral neuropathies. In particular, tubulin post-translational modifications have been recently implicated in both toxic and inherited forms of peripheral neuropathy through regulation of axonal transport and mitochondria dynamics. This knowledge forms a new area of investigation with the potential for developing therapeutic strategies to prevent or delay peripheral neuropathy by restoring tubulin homeostasis.
Collapse
Affiliation(s)
- Maria Elena Pero
- Department of Pathology and Cell Biology, Columbia University, New York, USA; Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Italy
| | - Farihah Chowdhury
- Department of Pathology and Cell Biology, Columbia University, New York, USA
| | - Francesca Bartolini
- Department of Pathology and Cell Biology, Columbia University, New York, USA.
| |
Collapse
|
3
|
Puxeddu M, Wu J, Bai R, D’Ambrosio M, Nalli M, Coluccia A, Manetto S, Ciogli A, Masci D, Urbani A, Fionda C, Coni S, Bordone R, Canettieri G, Bigogno C, Dondio G, Hamel E, Liu T, Silvestri R, La Regina G. Induction of Ferroptosis in Glioblastoma and Ovarian Cancers by a New Pyrrole Tubulin Assembly Inhibitor. J Med Chem 2022; 65:15805-15818. [PMID: 36395526 PMCID: PMC9743090 DOI: 10.1021/acs.jmedchem.2c01457] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We synthesized new aroyl diheterocyclic pyrrole (ARDHEP) 15 that exhibited the hallmarks of ferroptosis. Compound 15 strongly inhibited U-87 MG, OVCAR-3, and MCF-7 cancer cells, induced an increase of cleaved PARP, but was not toxic for normal human primary T lymphocytes at 0.1 μM. Analysis of the levels of lactoperoxidase, malondialdehyde, lactic acid, total glutathione, and ATP suggested that the in vivo inhibition of cancer cell proliferation by 15 went through stimulation of oxidative stress injury and Fe2+ accumulation. Quantitative polymerase chain reaction analysis of the mRNA expression in U-87 MG and SKOV-3 tumor tissues from 15-treated mice showed the presence of Ptgs2/Nfe2l2/Sat1/Akr1c1/Gpx4 genes correlated with ferroptosis in both groups. Immunofluorescence staining revealed significantly lower expressions of proteins Ki67, CD31, and ferroptosis negative regulation proteins glutathione peroxidase 4 (GPX4) and FTH1. Compound 15 was found to be metabolically stable when incubated with human liver microsomes.
Collapse
Affiliation(s)
- Michela Puxeddu
- Laboratory
Affiliated with the Institute Pasteur Italy - Cenci Bolognetti Foundation,
Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185Rome, Italy
| | - Jianchao Wu
- Shanghai
Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 365 South Xiangyang Road, 200031Shanghai, China
| | - Ruoli Bai
- Molecular
Pharmacology Branch, Developmental Therapeutics Program, Division
of Cancer Treatment and Diagnosis, Frederick National Laboratory for
Cancer Research, National Cancer Institute,
National Institutes of Health, Frederick, Maryland21702, United States
| | - Michele D’Ambrosio
- Laboratory
Affiliated with the Institute Pasteur Italy - Cenci Bolognetti Foundation,
Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185Rome, Italy
| | - Marianna Nalli
- Laboratory
Affiliated with the Institute Pasteur Italy - Cenci Bolognetti Foundation,
Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185Rome, Italy
| | - Antonio Coluccia
- Laboratory
Affiliated with the Institute Pasteur Italy - Cenci Bolognetti Foundation,
Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185Rome, Italy
| | - Simone Manetto
- Laboratory
Affiliated with the Institute Pasteur Italy - Cenci Bolognetti Foundation,
Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185Rome, Italy
| | - Alessia Ciogli
- Laboratory
Affiliated with the Institute Pasteur Italy - Cenci Bolognetti Foundation,
Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185Rome, Italy
| | - Domiziana Masci
- Department
of Basic Biotechnological Sciences, Intensivological and Perioperative
Clinics, Catholic University of the Sacred
Heart, Largo Francesco
Vito 1, 00168Rome, Italy
| | - Andrea Urbani
- Department
of Basic Biotechnological Sciences, Intensivological and Perioperative
Clinics, Catholic University of the Sacred
Heart, Largo Francesco
Vito 1, 00168Rome, Italy
| | - Cinzia Fionda
- Laboratory
Affiliated with the Institute Pasteur Italy - Cenci Bolognetti Foundation,
Department of Molecular Medicine, Sapienza
University of Rome, Viale Regina Elena 291, 00161Rome, Italy
| | - Sonia Coni
- Laboratory
Affiliated with the Institute Pasteur Italy - Cenci Bolognetti Foundation,
Department of Molecular Medicine, Sapienza
University of Rome, Viale Regina Elena 291, 00161Rome, Italy
| | - Rosa Bordone
- Laboratory
Affiliated with the Institute Pasteur Italy - Cenci Bolognetti Foundation,
Department of Molecular Medicine, Sapienza
University of Rome, Viale Regina Elena 291, 00161Rome, Italy
| | - Gianluca Canettieri
- Laboratory
Affiliated with the Institute Pasteur Italy - Cenci Bolognetti Foundation,
Department of Molecular Medicine, Sapienza
University of Rome, Viale Regina Elena 291, 00161Rome, Italy
| | - Chiara Bigogno
- Aphad
SrL, Via della Resistenza
65, 20090Buccinasco, Italy
| | - Giulio Dondio
- Aphad
SrL, Via della Resistenza
65, 20090Buccinasco, Italy
| | - Ernest Hamel
- Molecular
Pharmacology Branch, Developmental Therapeutics Program, Division
of Cancer Treatment and Diagnosis, Frederick National Laboratory for
Cancer Research, National Cancer Institute,
National Institutes of Health, Frederick, Maryland21702, United States
| | - Te Liu
- Shanghai
Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 365 South Xiangyang Road, 200031Shanghai, China,
| | - Romano Silvestri
- Laboratory
Affiliated with the Institute Pasteur Italy - Cenci Bolognetti Foundation,
Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185Rome, Italy,
| | - Giuseppe La Regina
- Laboratory
Affiliated with the Institute Pasteur Italy - Cenci Bolognetti Foundation,
Department of Drug Chemistry and Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185Rome, Italy,
| |
Collapse
|
4
|
Chung G, Kim SK. Therapeutics for Chemotherapy-Induced Peripheral Neuropathy: Approaches with Natural Compounds from Traditional Eastern Medicine. Pharmaceutics 2022; 14:pharmaceutics14071407. [PMID: 35890302 PMCID: PMC9319448 DOI: 10.3390/pharmaceutics14071407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 06/23/2022] [Accepted: 07/04/2022] [Indexed: 11/16/2022] Open
Abstract
Chemotherapy-induced peripheral neuropathy (CIPN) often develops in patients with cancer treated with commonly used anti-cancer drugs. The symptoms of CIPN can occur acutely during chemotherapy or emerge after cessation, and often accompany long-lasting intractable pain. This adverse side effect not only affects the quality of life but also limits the use of chemotherapy, leading to a reduction in the survival rate of patients with cancer. Currently, effective treatments for CIPN are limited, and various interventions are being applied by clinicians and patients because of the unmet clinical need. Potential approaches to ameliorate CIPN include traditional Eastern medicine-based methods. Medicinal substances from traditional Eastern medicine have well-established analgesic effects and are generally safe. Furthermore, many substances can also improve other comorbid symptoms in patients. This article aims to provide information regarding traditional Eastern medicine-based plant extracts and natural compounds for CIPN. In this regard, we briefly summarized the development, mechanisms, and changes in the nervous system related to CIPN, and reviewed the substances of traditional Eastern medicine that have been exploited to treat CIPN in preclinical and clinical settings.
Collapse
Affiliation(s)
- Geehoon Chung
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea;
| | - Sun Kwang Kim
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea;
- Department of Korean Medicine, Graduate School, Kyung Hee University, Seoul 02447, Korea
- Correspondence:
| |
Collapse
|
5
|
Heslop KA, Milesi V, Maldonado EN. VDAC Modulation of Cancer Metabolism: Advances and Therapeutic Challenges. Front Physiol 2021; 12:742839. [PMID: 34658929 PMCID: PMC8511398 DOI: 10.3389/fphys.2021.742839] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 08/25/2021] [Indexed: 12/16/2022] Open
Abstract
Most anionic metabolites including respiratory substrates, glycolytic adenosine triphosphate (ATP), and small cations that enter mitochondria, and mitochondrial ATP moving to the cytosol, cross the outer mitochondrial membrane (OMM) through voltage dependent anion channels (VDAC). The closed states of VDAC block the passage of anionic metabolites, and increase the flux of small cations, including calcium. Consequently, physiological or pharmacological regulation of VDAC opening, by conditioning the magnitude of both anion and cation fluxes, is a major contributor to mitochondrial metabolism. Tumor cells display a pro-proliferative Warburg phenotype characterized by enhanced aerobic glycolysis in the presence of partial suppression of mitochondrial metabolism. The heterogeneous and flexible metabolic traits of most human tumors render cells able to adapt to the constantly changing energetic and biosynthetic demands by switching between predominantly glycolytic or oxidative phenotypes. Here, we describe the biological consequences of changes in the conformational state of VDAC for cancer metabolism, the mechanisms by which VDAC-openers promote cancer cell death, and the advantages of VDAC opening as a valuable pharmacological target. Particular emphasis is given to the endogenous regulation of VDAC by free tubulin and the effects of VDAC-tubulin antagonists in cancer cells. Because of its function and location, VDAC operates as a switch to turn-off mitochondrial metabolism (closed state) and increase aerobic glycolysis (pro-Warburg), or to turn-on mitochondrial metabolism (open state) and decrease glycolysis (anti-Warburg). A better understanding of the role of VDAC regulation in tumor progression is relevant both for cancer biology and for developing novel cancer chemotherapies.
Collapse
Affiliation(s)
- Kareem A Heslop
- Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, United States
| | - Veronica Milesi
- Facultad de Ciencias Exactas, Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), UNLP, CONICET, CIC PBA, La Plata, Argentina
| | - Eduardo N Maldonado
- Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, United States.,Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, United States
| |
Collapse
|
6
|
Khan A, Kuriachan G, Mahalakshmi R. Cellular Interactome of Mitochondrial Voltage-Dependent Anion Channels: Oligomerization and Channel (Mis)Regulation. ACS Chem Neurosci 2021; 12:3497-3515. [PMID: 34503333 DOI: 10.1021/acschemneuro.1c00429] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Voltage-dependent anion channels (VDACs) of the outer mitochondrial membrane are known conventionally as metabolite flux proteins. However, research findings in the past decade have revealed the multifaceted regulatory roles of VDACs, from governing cellular physiology and mitochondria-mediated apoptosis to directly regulating debilitating cancers and neurodegenerative diseases. VDACs achieve these diverse functions by establishing isoform-dependent stereospecific interactomes in the cell with the cytosolic constituents and endoplasmic reticulum complexes, and the machinery of the mitochondrial compartments. VDACs are now increasingly recognized as regulatory hubs of the cell. Not surprisingly, even the transient misregulation of VDACs results directly in mitochondrial dysfunction. Additionally, human VDACs are now implicated in interaction with aggregation-prone cytosolic proteins, including Aβ, tau, and α-synuclein, contributing directly to the onset of Alzheimer's and Parkinson's diseases. Deducing the interaction dynamics and mechanisms can lead to VDAC-targeted peptide-based therapeutics that can alleviate neurodegenerative states. This review succinctly presents the latest findings of the VDAC interactome, and the mode(s) of VDAC-dependent regulation of biochemical physiology. We also discuss the relevance of VDACs in pathophysiological states and aggregation-associated diseases and address how VDACs will facilitate the development of next-generation precision medicines.
Collapse
Affiliation(s)
- Altmash Khan
- Molecular Biophysics Laboratory, Department of Biological Sciences, Indian Institute of Science Education and Research, Bhopal 462066, India
| | - Gifty Kuriachan
- Molecular Biophysics Laboratory, Department of Biological Sciences, Indian Institute of Science Education and Research, Bhopal 462066, India
| | - Radhakrishnan Mahalakshmi
- Molecular Biophysics Laboratory, Department of Biological Sciences, Indian Institute of Science Education and Research, Bhopal 462066, India
| |
Collapse
|
7
|
Fermaintt CS, Takahashi-Ruiz L, Liang H, Mooberry SL, Risinger AL. Eribulin activates the cGAS-STING pathway via the cytoplasmic accumulation of mtDNA. Mol Pharmacol 2021; 100:309-318. [PMID: 34312217 PMCID: PMC8626644 DOI: 10.1124/molpharm.121.000297] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 07/14/2021] [Indexed: 11/23/2022] Open
Abstract
Microtubule-targeting agents (MTAs), including both microtubule stabilizers and destabilizers are highly effective chemotherapeutic drugs used in the treatment of solid tumors and hematologic malignancies. In addition to the shared ability of all MTAs to block cell cycle progression, growing evidence shows that different agents of this class can also have mechanistically distinct effects on nonmitotic microtubule-dependent cellular processes, including cellular signaling and transport. Herein, we test the biologic hypothesis that MTAs used in the treatment of triple-negative breast cancer (TNBC) can differentially affect innate immune signaling pathways independent of their antimitotic effects. Our data demonstrate that the microtubule destabilizer eribulin, but not the microtubule stabilizer paclitaxel, induces cGAS-STING–dependent expression of interferon-β in both myeloid and TNBC cells. Activation of the cGAS-STING pathway by eribulin was further found to be mediated by the accumulation of cytoplasmic mitochondrial DNA. Together, these findings provide mechanistic insight into how eribulin can induce innate immune signaling independent of its antimitotic or cytotoxic effects.
Collapse
Affiliation(s)
- Charles S Fermaintt
- Pharmacology, University of Texas Health Science Center at San Antonio, United States
| | - Leila Takahashi-Ruiz
- Pharmacology, University of Texas Health Science Center at San Antonio, United States
| | - Huiyun Liang
- Pharmacology, UT Health San Antonio, United States
| | - Susan L Mooberry
- Pharmacology, Univ. TX Health Sci Center at San Antonio, United States
| | - April L Risinger
- Pharmacology, University of Texas Health Science Center at San Antonio, United States
| |
Collapse
|
8
|
Rostovtseva TK, Bezrukov SM, Hoogerheide DP. Regulation of Mitochondrial Respiration by VDAC Is Enhanced by Membrane-Bound Inhibitors with Disordered Polyanionic C-Terminal Domains. Int J Mol Sci 2021; 22:ijms22147358. [PMID: 34298976 PMCID: PMC8306229 DOI: 10.3390/ijms22147358] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 12/18/2022] Open
Abstract
The voltage-dependent anion channel (VDAC) is the primary regulating pathway of water-soluble metabolites and ions across the mitochondrial outer membrane. When reconstituted into lipid membranes, VDAC responds to sufficiently large transmembrane potentials by transitioning to gated states in which ATP/ADP flux is reduced and calcium flux is increased. Two otherwise unrelated cytosolic proteins, tubulin, and α-synuclein (αSyn), dock with VDAC by a novel mechanism in which the transmembrane potential draws their disordered, polyanionic C-terminal domains into and through the VDAC channel, thus physically blocking the pore. For both tubulin and αSyn, the blocked state is observed at much lower transmembrane potentials than VDAC gated states, such that in the presence of these cytosolic docking proteins, VDAC’s sensitivity to transmembrane potential is dramatically increased. Remarkably, the features of the VDAC gated states relevant for bioenergetics—reduced metabolite flux and increased calcium flux—are preserved in the blocked state induced by either docking protein. The ability of tubulin and αSyn to modulate mitochondrial potential and ATP production in vivo is now supported by many studies. The common physical origin of the interactions of both tubulin and αSyn with VDAC leads to a general model of a VDAC inhibitor, facilitates predictions of the effect of post-translational modifications of known inhibitors, and points the way toward the development of novel therapeutics targeting VDAC.
Collapse
Affiliation(s)
- Tatiana K. Rostovtseva
- Program in Physical Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA;
- Correspondence:
| | - Sergey M. Bezrukov
- Program in Physical Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA;
| | - David P. Hoogerheide
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA;
| |
Collapse
|
9
|
Abstract
Chemotherapy-induced peripheral neuropathy (CIPN) is a debilitating “dying back” neuropathy featuring a distal-to-proximal peripheral nerve degeneration seen in cancer patients undergoing chemotherapy. The pathogenenic mechanisms of CIPN are largely unknown. We report that in sensory neurons, the CIPN-inducing drug bortezomib caused axonopathy and disrupted mitochondria motility by increasing delta 2 tubulin (D2), the only irreversible tubulin posttranslational modification and a marker of hyper-stable microtubules. These data provide a new paradigm for the risk associated with enhanced tubulin longevity in peripheral neuropathy and suggest that targeting the enzymes regulating this tubulin modification may provide therapies that prevent the axonal injury observed in bortezomib-induced peripheral neuropathy. The pathogenesis of chemotherapy-induced peripheral neuropathy (CIPN) is poorly understood. Here, we report that the CIPN-causing drug bortezomib (Bort) promotes delta 2 tubulin (D2) accumulation while affecting microtubule stability and dynamics in sensory neurons in vitro and in vivo and that the accumulation of D2 is predominant in unmyelinated fibers and a hallmark of bortezomib-induced peripheral neuropathy (BIPN) in humans. Furthermore, while D2 overexpression was sufficient to cause axonopathy and inhibit mitochondria motility, reduction of D2 levels alleviated both axonal degeneration and the loss of mitochondria motility induced by Bort. Together, our data demonstrate that Bort, a compound structurally unrelated to tubulin poisons, affects the tubulin cytoskeleton in sensory neurons in vitro, in vivo, and in human tissue, indicating that the pathogenic mechanisms of seemingly unrelated CIPN drugs may converge on tubulin damage. The results reveal a previously unrecognized pathogenic role for D2 in BIPN that may occur through altered regulation of mitochondria motility.
Collapse
|
10
|
Wu B, Su X, Zhang W, Zhang YH, Feng X, Ji YH, Tan ZY. Oxaliplatin Depolarizes the IB4 - Dorsal Root Ganglion Neurons to Drive the Development of Neuropathic Pain Through TRPM8 in Mice. Front Mol Neurosci 2021; 14:690858. [PMID: 34149356 PMCID: PMC8211750 DOI: 10.3389/fnmol.2021.690858] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 05/10/2021] [Indexed: 01/13/2023] Open
Abstract
Use of chemotherapy drug oxaliplatin is associated with painful peripheral neuropathy that is exacerbated by cold. Remodeling of ion channels including TRP channels in dorsal root ganglion (DRG) neurons contribute to the sensory hypersensitivity following oxaliplatin treatment in animal models. However, it has not been studied if TRP channels and membrane depolarization of DRG neurons serve as the initial ionic/membrane drives (such as within an hour) that contribute to the development of oxaliplatin-induced neuropathic pain. In the current study, we studied in mice (1) in vitro acute effects of oxaliplatin on the membrane excitability of IB4+ and IB4- subpopulations of DRG neurons using a perforated patch clamping, (2) the preventative effects of a membrane-hyperpolarizing drug retigabine on oxaliplatin-induced sensory hypersensitivity, and (3) the preventative effects of TRP channel antagonists on the oxaliplatin-induced membrane hyperexcitability and sensory hypersensitivity. We found (1) IB4+ and IB4- subpopulations of small DRG neurons displayed previously undiscovered, substantially different membrane excitability, (2) oxaliplatin selectively depolarized IB4- DRG neurons, (3) pretreatment of retigabine largely prevented oxaliplatin-induced sensory hypersensitivity, (4) antagonists of TRPA1 and TRPM8 channels prevented oxaliplatin-induced membrane depolarization, and (5) the antagonist of TRPM8 largely prevented oxaliplatin-induced sensory hypersensitivity. These results suggest that oxaliplatin depolarizes IB4- neurons through TRPM8 channels to drive the development of neuropathic pain and targeting the initial drives of TRPM8 and/or membrane depolarization may prevent oxaliplatin-induce neuropathic pain.
Collapse
Affiliation(s)
- Bin Wu
- Institute of Special Environment Medicine, Nantong University, Nantong, China.,Department of Pharmacology and Toxicology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Xiaolin Su
- Department of Pharmacology and Toxicology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, United States.,Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Wentong Zhang
- Department of Pharmacology and Toxicology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Yi-Hong Zhang
- Department of Pharmacology and Toxicology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Xinghua Feng
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Yong-Hua Ji
- Laboratory of Neuropharmacology and Neurotoxicology, Shanghai University, Shanghai, China
| | - Zhi-Yong Tan
- Department of Pharmacology and Toxicology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, United States
| |
Collapse
|
11
|
Shah M, Chacko LA, Joseph JP, Ananthanarayanan V. Mitochondrial dynamics, positioning and function mediated by cytoskeletal interactions. Cell Mol Life Sci 2021; 78:3969-3986. [PMID: 33576841 PMCID: PMC11071877 DOI: 10.1007/s00018-021-03762-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 12/27/2020] [Accepted: 01/15/2021] [Indexed: 12/22/2022]
Abstract
The ability of a mitochondrion to undergo fission and fusion, and to be transported and localized within a cell are central not just to proper functioning of mitochondria, but also to that of the cell. The cytoskeletal filaments, namely microtubules, F-actin and intermediate filaments, have emerged as prime movers in these dynamic mitochondrial shape and position transitions. In this review, we explore the complex relationship between the cytoskeleton and the mitochondrion, by delving into: (i) how the cytoskeleton helps shape mitochondria via fission and fusion events, (ii) how the cytoskeleton facilitates the translocation and anchoring of mitochondria with the activity of motor proteins, and (iii) how these changes in form and position of mitochondria translate into functioning of the cell.
Collapse
Affiliation(s)
- Mitali Shah
- Centre for BioSystems Science and Engineering, Indian Institute of Science, Bangalore, India
| | - Leeba Ann Chacko
- Centre for BioSystems Science and Engineering, Indian Institute of Science, Bangalore, India
| | - Joel P Joseph
- Centre for BioSystems Science and Engineering, Indian Institute of Science, Bangalore, India
| | - Vaishnavi Ananthanarayanan
- Centre for BioSystems Science and Engineering, Indian Institute of Science, Bangalore, India.
- EMBL Australia Node in Single Molecule Science, School of Medical Sciences, University of New South Wales, Sydney, Australia.
| |
Collapse
|
12
|
Brown KA, Tucholski T, Alpert AJ, Eken C, Wesemann L, Kyrvasilis A, Jin S, Ge Y. Top-Down Proteomics of Endogenous Membrane Proteins Enabled by Cloud Point Enrichment and Multidimensional Liquid Chromatography-Mass Spectrometry. Anal Chem 2020; 92:15726-15735. [PMID: 33231430 PMCID: PMC7968110 DOI: 10.1021/acs.analchem.0c02533] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Although top-down proteomics has emerged as a powerful strategy to characterize proteins in biological systems, the analysis of endogenous membrane proteins remains challenging due to their low solubility, low abundance, and the complexity of the membrane subproteome. Here, we report a simple but effective enrichment and separation strategy for top-down proteomics of endogenous membrane proteins enabled by cloud point extraction and multidimensional liquid chromatography coupled to high-resolution mass spectrometry (MS). The cloud point extraction efficiently enriched membrane proteins using a single extraction, eliminating the need for time-consuming ultracentrifugation steps. Subsequently, size-exclusion chromatography (SEC) with an MS-compatible mobile phase (59% water, 40% isopropanol, 1% formic acid) was used to remove the residual surfactant and fractionate intact proteins (6-115 kDa). The fractions were separated further by reversed-phase liquid chromatography (RPLC) coupled with MS for protein characterization. This method was applied to human embryonic kidney cells and cardiac tissue lysates to enable the identification of 188 and 124 endogenous integral membrane proteins, respectively, some with as many as 19 transmembrane domains.
Collapse
Affiliation(s)
- Kyle A. Brown
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, 53706, USA
| | - Trisha Tucholski
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, 53706, USA
| | - Andrew J. Alpert
- PolyLC Inc., Columbia, Maryland 21045, United States
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin, 53705, USA
| | - Christian Eken
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, 53706, USA
| | - Lucas Wesemann
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin, 53705, USA
| | - Andreas Kyrvasilis
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin, 53705, USA
| | - Song Jin
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, 53706, USA
| | - Ying Ge
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, 53706, USA
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, Wisconsin, 53705, USA
- Human Proteomics Program, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, 53705, USA
| |
Collapse
|
13
|
Winquist RJ, Gribkoff VK. Targeting putative components of the mitochondrial permeability transition pore for novel therapeutics. Biochem Pharmacol 2020; 177:113995. [PMID: 32339494 DOI: 10.1016/j.bcp.2020.113995] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 04/22/2020] [Indexed: 12/14/2022]
Abstract
Few discoveries have influenced drug discovery programs more than the finding that mitochondrial membranes undergo swings in permeability in response to cellular perturbations. The conductor of these permeability changes is the aptly named mitochondrial permeability transition pore which, although not yet precisely defined, is comprised of several integral proteins that differentially act to regulate the flux of ions, proteins and metabolic byproducts during the course of cellular physiological functions but also pathophysiological insults. Pursuit of the pore's exact identity remains a topic of keen interest, but decades of research have unearthed provocative functions for the integral proteins leading to their evaluation to develop novel therapeutics for a wide range of clinical indications. Chief amongst these targeted, integral proteins have been the Voltage Dependent Anion Channel (VDAC) and the F1FO ATP synthase. Research associated with the roles and ligands of VDAC has been extensive and we will expand upon 3 examples of ligand:VDAC interactions for consideration of drug discovery projects: Tubulin:VDAC1, Hexokinase I/II:VDAC1 and olesoxime:VDAC1. The discoveries that cyclosporine blocks mitochondrial permeability transition via binding to cyclophilin D, and that cyclophilin D is an important component of F1FO ATP synthase, has heightened interest in the F1FO ATP synthase as a focal point for drug discovery, and we will discuss 2 plausible campaigns associated with disease indications. To date no drug has emerged from prospective targeting these integral proteins; however, continued exploration such as the approaches suggested in this Commentary will increase the likelihood of providing important therapeutics for severely unmet medical needs.
Collapse
Affiliation(s)
- Raymond J Winquist
- Alkermes Pharmaceuticals Inc, 852 Winter Street, Waltham MA 02451, United States.
| | - Valentin K Gribkoff
- Yale University School of Medicine, Department of Internal Medicine, 333 Cedar St., New Haven, CT 06510, United States; TheraStat LLC, 44 Kings Grant Rd., Weston, MA 02493, United States
| |
Collapse
|