1
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Zhou Q, Shi R. Shared Genetic Features of Psoriasis and Myocardial Infarction: Insights From a Weighted Gene Coexpression Network Analysis. J Am Heart Assoc 2024; 13:e033893. [PMID: 38533976 PMCID: PMC11179746 DOI: 10.1161/jaha.123.033893] [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: 12/08/2023] [Accepted: 03/05/2024] [Indexed: 03/28/2024]
Abstract
BACKGROUND Increasing evidence suggests a higher propensity for acute myocardial infarction (MI) in patients with psoriasis. However, the shared mechanisms underlying this comorbidity in these patients remain unclear. This study aimed to explore the shared genetic features of psoriasis and MI and to identify potential biomarkers indicating their coexistence. METHODS AND RESULTS Data sets obtained from the gene expression omnibus were examined using a weighted gene coexpression network analysis approach. Hub genes were identified using coexpression modules and validated in other data sets and through in vitro cellular experiments. Bioinformatics tools, including the Human microRNA Disease Database, StarBase, and miRNet databases, were used to construct a ceRNA network and predict potential regulatory mechanisms. By applying weighted gene coexpression network analysis, we identified 2 distinct modules that were significant for both MI and psoriasis. Inflammatory and immune pathways were highlighted by gene ontology enrichment analysis of the overlapping genes. Three pivotal genes-Src homology and collagen 1, disruptor of telomeric silencing 1-like, and feline leukemia virus subgroup C cellular receptor family member 2-were identified as potential biomarkers. We constructed a ceRNA network that suggested the upstream regulatory roles of these genes in the coexistence of psoriasis and MI. CONCLUSIONS As potential therapeutic targets, Src homology and collagen 1, feline leukemia virus subgroup C cellular receptor family member 2, and disruptor of telomeric silencing 1-like provide novel insights into the shared genetic features between psoriasis and MI. This study paves the way for future studies focusing on the prevention of MI in patients with psoriasis.
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Affiliation(s)
- Qiaoyu Zhou
- Department of Cardiovascular MedicineThird Xiangya Hospital of Central South UniversityChangshaHunanChina
| | - Ruizheng Shi
- Department of Cardiovascular MedicineXiangya Hospital, Central South UniversityChangshaHunanChina
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2
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da C. Pinaffi-Langley AC, Melia E, Hays FA. Exploring the Gut-Mitochondrial Axis: p66Shc Adapter Protein and Its Implications for Metabolic Disorders. Int J Mol Sci 2024; 25:3656. [PMID: 38612468 PMCID: PMC11011581 DOI: 10.3390/ijms25073656] [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: 02/17/2024] [Revised: 03/16/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
This review investigates the multifaceted role of the p66Shc adaptor protein and the gut microbiota in regulating mitochondrial function and oxidative stress, and their collective impact on the pathogenesis of chronic diseases. The study delves into the molecular mechanisms by which p66Shc influences cellular stress responses through Rac1 activation, Forkhead-type transcription factors inactivation, and mitochondria-mediated apoptosis, alongside modulatory effects of gut microbiota-derived metabolites and endotoxins. Employing an integrative approach, the review synthesizes findings from a broad array of studies, including molecular biology techniques and analyses of microbial metabolites' impacts on host cellular pathways. The results underscore a complex interplay between microbial metabolites, p66Shc activation, and mitochondrial dysfunction, highlighting the significance of the gut microbiome in influencing disease outcomes through oxidative stress pathways. Conclusively, the review posits that targeting the gut microbiota-p66Shc-mitochondrial axis could offer novel therapeutic strategies for mitigating the development and progression of metabolic diseases. This underscores the potential of dietary interventions and microbiota modulation in managing oxidative stress and inflammation, pivotal factors in chronic disease etiology.
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Affiliation(s)
- Ana Clara da C. Pinaffi-Langley
- Department of Nutritional Sciences, College of Allied Health, University of Oklahoma Health Sciences, Oklahoma City, OK 73117, USA; (A.C.d.C.P.-L.); (E.M.)
| | - Elizabeth Melia
- Department of Nutritional Sciences, College of Allied Health, University of Oklahoma Health Sciences, Oklahoma City, OK 73117, USA; (A.C.d.C.P.-L.); (E.M.)
| | - Franklin A. Hays
- Department of Nutritional Sciences, College of Allied Health, University of Oklahoma Health Sciences, Oklahoma City, OK 73117, USA; (A.C.d.C.P.-L.); (E.M.)
- Stephenson Cancer Center, University of Oklahoma Health Sciences, Oklahoma City, OK 73117, USA
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3
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Mo JS, Lamichhane S, Yun KJ, Chae SC. MicroRNA 452 regulates SHC1 expression in human colorectal cancer and colitis. Genes Genomics 2023; 45:1295-1304. [PMID: 37523129 DOI: 10.1007/s13258-023-01432-3] [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: 03/21/2023] [Accepted: 07/10/2023] [Indexed: 08/01/2023]
Abstract
BACKGROUND Human microRNA 452 (MIR452) has been linked to both colorectal cancer (CRC) tissues and dextran sulfate sodium (DSS)-induced colitis. OBJECTIVE We analyzed the correlation between MIR452 and its putative target gene in human CRC cells and in mouse colitis tissues. METHODS Luciferase reporter assay confirmed that Src homologous and collagen adaptor protein 1 (SHC1) is a direct target of MIR452. Furthermore, the expression of proteins or mRNA was assessed by immunohistochemical analysis, Western blot, or quantitative RT-PCR (qRT-PCR). RESULTS We found that MIR452 has a potential binding site at 3'-UTR of SHC1. Likewise, MIR452 or siSHC1 transfection dramatically reduced the level of cellular SHC1 in CRC cells. The expression of SHC1 was frequently downregulated in both human CRC tissues and mouse colitis tissues. In CRC cells, we demonstrated that MIR452 regulated the expression of genes involved in the SHC1-mediated KRAS-MAPK signal transduction pathways. CONCLUSION These findings suggest a potential defense mechanism in which MIR452 regulation of the adaptor protein SHC1 maintains cellular homeostasis during carcinogenesis or chronic inflammation. Therefore, MIR452 may have therapeutic value for human early-stage CRC and colitis.
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Affiliation(s)
- Ji-Su Mo
- Department of Pathology, School of Medicine, Wonkwang University, Iksan, Chonbuk, 54538, Republic of Korea
- Digestive Disease Research Institute, Wonkwang University, Iksan, Chonbuk, 54538, Republic of Korea
| | - Santosh Lamichhane
- Department of Pathology, School of Medicine, Wonkwang University, Iksan, Chonbuk, 54538, Republic of Korea
- Department of Genetics, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Ki-Jung Yun
- Department of Pathology, School of Medicine, Wonkwang University, Iksan, Chonbuk, 54538, Republic of Korea
| | - Soo-Cheon Chae
- Department of Pathology, School of Medicine, Wonkwang University, Iksan, Chonbuk, 54538, Republic of Korea.
- Digestive Disease Research Institute, Wonkwang University, Iksan, Chonbuk, 54538, Republic of Korea.
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4
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Powell AM, Edwards NA, Hunter H, Kiser P, Watson AJ, Cumming RC, Betts DH. Deletion of p66Shc Dysregulates ERK and STAT3 Activity in Mouse Embryonic Stem Cells, Enhancing Their Naive-Like Self-Renewal in the Presence of Leukemia Inhibitory Factor. Stem Cells Dev 2023; 32:434-449. [PMID: 37183401 DOI: 10.1089/scd.2022.0283] [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] [Indexed: 05/16/2023] Open
Abstract
The ShcA adapter protein is necessary for early embryonic development. The role of ShcA in development is primarily attributed to its 52 and 46 kDa isoforms that transduce receptor tyrosine kinase signaling through the extracellular signal regulated kinase (ERK). During embryogenesis, ERK acts as the primary signaling effector, driving fate acquisition and germ layer specification. P66Shc, the largest of the ShcA isoforms, has been observed to antagonize ERK in several contexts; however, its role during embryonic development remains poorly understood. We hypothesized that p66Shc could act as a negative regulator of ERK activity during embryonic development, antagonizing early lineage commitment. To explore the role of p66Shc in stem cell self-renewal and differentiation, we created a p66Shc knockout murine embryonic stem cell (mESC) line. Deletion of p66Shc enhanced basal ERK activity, but surprisingly, instead of inducing mESC differentiation, loss of p66Shc enhanced the expression of core and naive pluripotency markers. Using pharmacologic inhibitors to interrogate potential signaling mechanisms, we discovered that p66Shc deletion permits the self-renewal of naive mESCs in the absence of conventional growth factors, by increasing their responsiveness to leukemia inhibitory factor (LIF). We discovered that loss of p66Shc enhanced not only increased ERK phosphorylation but also increased phosphorylation of Signal transducer and activator of transcription in mESCs, which may be acting to stabilize their naive-like identity, desensitizing them to ERK-mediated differentiation cues. These findings identify p66Shc as a regulator of both LIF-mediated ESC pluripotency and of signaling cascades that initiate postimplantation embryonic development and ESC commitment.
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Affiliation(s)
- Andrew M Powell
- Department of Biology, The University of Western Ontario, London, Canada
| | - Nicole A Edwards
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
| | - Hailey Hunter
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
| | - Patti Kiser
- Department of Pathology and Laboratory Medicine, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
| | - Andrew J Watson
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
- Department of Obstetrics and Gynaecology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
- Genetics and Development Division, The Children's Health Research Institute, Lawson Health Research Institute, London, Canada
| | - Robert C Cumming
- Department of Biology, The University of Western Ontario, London, Canada
- Genetics and Development Division, The Children's Health Research Institute, Lawson Health Research Institute, London, Canada
| | - Dean H Betts
- Department of Biology, The University of Western Ontario, London, Canada
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
- Department of Obstetrics and Gynaecology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
- Genetics and Development Division, The Children's Health Research Institute, Lawson Health Research Institute, London, Canada
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5
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USP15 regulates p66Shc stability associated with Drp1 activation in liver ischemia/reperfusion. Cell Death Dis 2022; 13:823. [PMID: 36163170 PMCID: PMC9512921 DOI: 10.1038/s41419-022-05277-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 09/09/2022] [Accepted: 09/15/2022] [Indexed: 01/23/2023]
Abstract
Liver ischemia/reperfusion (I/R) injury is a major clinical concern of liver transplantation, which accounts for organ rejection and liver dysfunction. The adaptor protein p66Shc acts as a crucial redox enzyme and is implicated in liver I/R. Elevated p66Shc expression is associated with hepatocellular apoptosis in liver I/R, but the molecular mechanisms of p66Shc responsible for its aberrant expression and function remain unknown. In the present study, hepatocyte-specific p66Shc-knockdown mice exhibited clear inhibition in hepatocellular apoptosis and oxidative stress under liver I/R, while hepatocyte-specific p66Shc overexpression mice displayed the deteriorative impairment. Mechanistically, p66Shc-triggered mitochondrial fission and apoptosis in liver I/R by mediating ROS-driven Drp1 activation. Furthermore, a screening for p66Shc-interacting proteins identified ubiquitin-specific protease 15 (USP15) as a mediator critical for abnormal p66Shc expression. Specifically, USP15 interacted with the SH2 domain of p66Shc and maintained its stabilization by removing ubiquitin. In vivo, p66Shc knockdown abrogated USP15-driven hepatocellular apoptosis, whereas p66Shc overexpression counteracted the antiapoptotic effect of USP15 silencing in response to liver I/R. There was clinical evidence for the positive association between p66Shc and USP15 in patients undergoing liver transplantation. In summary, p66Shc contributes to mitochondrial fission and apoptosis associated with Drp1 activation, and abnormal p66Shc expression relies on the activity of USP15 deubiquitination under liver I/R. The current study sheds new light on the molecular mechanism of p66Shc, and identifies USP15 as a novel mediator of p66Shc to facilitate better therapeutics against liver I/R.
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6
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Haslem L, Hays JM, Hays FA. p66Shc in Cardiovascular Pathology. Cells 2022; 11:cells11111855. [PMID: 35681549 PMCID: PMC9180016 DOI: 10.3390/cells11111855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/30/2022] [Accepted: 06/01/2022] [Indexed: 02/06/2023] Open
Abstract
p66Shc is a widely expressed protein that governs a variety of cardiovascular pathologies by generating, and exacerbating, pro-apoptotic ROS signals. Here, we review p66Shc’s connections to reactive oxygen species, expression, localization, and discuss p66Shc signaling and mitochondrial functions. Emphasis is placed on recent p66Shc mitochondrial function discoveries including structure/function relationships, ROS identity and regulation, mechanistic insights, and how p66Shc-cyt c interactions can influence p66Shc mitochondrial function. Based on recent findings, a new p66Shc mitochondrial function model is also put forth wherein p66Shc acts as a rheostat that can promote or antagonize apoptosis. A discussion of how the revised p66Shc model fits previous findings in p66Shc-mediated cardiovascular pathology follows.
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Affiliation(s)
- Landon Haslem
- Biochemistry and Molecular Biology Department, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (L.H.); (J.M.H.)
| | - Jennifer M. Hays
- Biochemistry and Molecular Biology Department, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (L.H.); (J.M.H.)
| | - Franklin A. Hays
- Biochemistry and Molecular Biology Department, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (L.H.); (J.M.H.)
- Stephenson Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- Correspondence:
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7
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Zhang M, Yang J, Ji K, He X, He T, Xing Y. Inhibition of p66Shc attenuates retinal ischemia-reperfusion injury-induced damage by activating the akt pathway. Exp Eye Res 2022; 220:109082. [PMID: 35513040 DOI: 10.1016/j.exer.2022.109082] [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: 12/06/2021] [Revised: 03/08/2022] [Accepted: 04/13/2022] [Indexed: 11/26/2022]
Abstract
Retinal ganglion cell (RGC) death is the direct cause of several optic neuropathies. Several studies have reported that the loss of p66Shc ameliorates neuronal injury and vascular abnormalities in ischemia-reperfusion (I/R) injury. However, whether p66Shc is involved in the loss of RGC remains unclear. Therefore, this study aimed to investigate the function of p66Shc due to retinal ischemia in mice. The retinal I/R model was constructed after an intravitreal injection of recombinant adeno-associated viruses (rAAV-EGFP or rAAV-p66Shc-EGFP) for 4 weeks. The expression of p66Shc was detected by western blotting, quantitative real-time polymerase chain reaction, and immunofluorescence staining. The survival of RGCs was determined using immunofluorescence staining. Retinal function was analyzed based on electroretinogram (ERG) findings. Retinal cell apoptosis was detected by TdT-mediated dUTP nick-end labeling staining. The protein expressions of Akt, phospho-Akt, Bax, and PARP were analyzed by western blotting. After rAAVs were successfully transfected, enhanced green fluorescent protein was expressed in all retinal cell layers, and the level of p66Shc after I/R injury was successfully reduced. We found that inhibition of p66Shc expression remarkably decreased the death of RGCs and prevented the loss of ERG a- and b-wave amplitudes caused by retinal ischemia. Mechanistically, downregulation of p66Shc resulted in reduced Bax, whereas increased phospho-Akt and PARP. Taken together, our study revealed that p66Shc acts through the Akt pathway to protect RGCs from retinal I/R injury-induced apoptosis and retinal dysfunction, making p66Shc a possible therapeutic target for glaucoma treatment.
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Affiliation(s)
- Min Zhang
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Hubei, China
| | - Jiayi Yang
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Hubei, China
| | - Kaibao Ji
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Hubei, China
| | - Xuejun He
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Hubei, China
| | - Tao He
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Hubei, China.
| | - Yiqiao Xing
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Hubei, China.
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8
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Albiero M, D'Anna M, Bonora BM, Zuccolotto G, Rosato A, Giorgio M, Iori E, Avogaro A, Fadini GP. Hematopoietic and Nonhematopoietic p66Shc Differentially Regulates Stem Cell Traffic and Vascular Response to Ischemia in Diabetes. Antioxid Redox Signal 2022; 36:593-607. [PMID: 34538132 DOI: 10.1089/ars.2021.0097] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Aims: Peripheral artery disease (PAD) is a severe complication of diabetes, characterized by defective traffic of hematopoietic stem/progenitor cells (HSPCs). We examined the hematopoietic versus nonhematopoietic role of p66Shc in regulating HSPC traffic and blood flow recovery after ischemia in diabetic mice. Results: Using streptozotocin-induced diabetes, chimeric mice with green fluorescent protein (GFP)+ bone marrow (BM), and the hind limb ischemia model, we found that the physiologic mobilization and homing of HSPCs were abolished by diabetes, along with impaired vascular recovery. Hematopoietic deletion of p66Shc, obtained by transplanting p66Shc-/- BM cells into wild-type (Wt) recipients, but not nonhematopoietic deletion, constrained hyperglycemia-induced myelopoiesis, rescued postischemic HSPC mobilization, and improved blood flow recovery in diabetic mice. In Wt diabetic mice transplanted with BM cells from GFP+p66Shc-/- mice, the amount of HSPCs homed to ischemic muscles was greater than in mice transplanted with GFP+p66Shc+/+ cells, with recruited cells displaying higher expression of adhesion molecules and Vegf. In 40 patients with diabetes, p66Shc gene expression in mononuclear cells was correlated with myelopoiesis and elevated in the presence of PAD. In 13 patients with diabetes and PAD, p66Shc expression in HSPC-mobilized peripheral blood cells was inversely correlated with VEGF expression. Innovation: For the first time, we dissect the role of hematopoietic versus nonhematopoietic p66Shc in regulating HSPC traffic and ischemic responses. Conclusion: Hematopoietic deletion of p66Shc was sufficient to rescue HSPC mobilization and homing in diabetes after ischemia and improved blood flow recovery. Inhibiting p66Shc in blood cells may be a novel strategy to counter PAD in diabetes. Antioxid. Redox Signal. 36, 593-607. Clinical Trial No.: NCT02790957.
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Affiliation(s)
- Mattia Albiero
- Department of Medicine, University of Padova, Padova, Italy.,Veneto Institute of Molecular Medicine, Padova, Italy
| | - Marianna D'Anna
- Department of Medicine, University of Padova, Padova, Italy.,Veneto Institute of Molecular Medicine, Padova, Italy
| | - Benedetta Maria Bonora
- Department of Medicine, University of Padova, Padova, Italy.,Veneto Institute of Molecular Medicine, Padova, Italy
| | - Gaia Zuccolotto
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Padova, Italy
| | - Antonio Rosato
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Padova, Italy.,Veneto Institute of Oncology - IOV IRCCS, Padua, Italy
| | - Marco Giorgio
- European Institute of Oncology (IEO), Milan, Italy.,Department of Biomedical Sciences, University of Padova, Padova, Italy
| | | | - Angelo Avogaro
- Department of Medicine, University of Padova, Padova, Italy
| | - Gian Paolo Fadini
- Department of Medicine, University of Padova, Padova, Italy.,Veneto Institute of Molecular Medicine, Padova, Italy
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9
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Ali R, Mir HA, Hamid R, Bhat B, Shah RA, Khanday FA, Bhat SS. Actin Modulation Regulates the Alpha-1-Syntrophin/p66Shc Mediated Redox Signaling Contributing to the RhoA GTPase Protein Activation in Breast Cancer Cells. Front Oncol 2022; 12:841303. [PMID: 35273919 PMCID: PMC8904154 DOI: 10.3389/fonc.2022.841303] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 01/25/2022] [Indexed: 11/13/2022] Open
Abstract
SNTA1 signaling axis plays an essential role in cytoskeletal organization and is also implicated in breast cancers. In this study, we aimed to investigate the involvement of actin cytoskeleton in the propagation of SNTA1/p66shc mediated pro-metastatic cascade in breast cancer cells.The effect of actin filament depolymerization on SNTA1-p66Shc interaction and the trimeric complex formation was analyzed using co-immunoprecipitation assays. Immunofluorescence and RhoA activation assays were used to show the involvement of SNTA1-p66Shc interaction in RhoA activation and F-actin organization. Cellular proliferation and ROS levels were assessed using MTT assay and Amplex red catalase assay. The migratory potential was evaluated using transwell migration assay and wound healing assay.We found that cytochalasin D mediated actin depolymerization significantly declines endogenous interaction between SNTA1 and p66Shc protein in MDA-MB-231 cells. Results indicate that SNTA1 and p66Shc interact with RhoA protein under physiological conditions. The ROS generation and RhoA activation were substantially enhanced in cells overexpressing SNTA1 and p66Shc, promoting proliferation and migration in these cells. In addition, we found that loss of SNTA1-p66Shc interaction impaired actin organization, proliferation, and migration in breast cancer cells. Our results demonstrate a novel reciprocal regulatory mechanism between actin modulation and SNTA1/p66Shc/RhoA signaling cascade in human metastatic breast cancer cells.
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Affiliation(s)
- Roshia Ali
- Department of Biotechnology, University of Kashmir, Srinagar, India.,Department of Biochemistry, University of Kashmir, Srinagar, India
| | - Hilal Ahmad Mir
- Department of Biotechnology, University of Kashmir, Srinagar, India
| | - Rabia Hamid
- Department of Nanotechnology, University of Kashmir, Srinagar, India
| | - Basharat Bhat
- National Agricultural Higher Education Project (NAHEP) Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Srinagar, India
| | - Riaz A Shah
- Division of Animal Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Faculty of Veterinary Sciences and Animal Husbandry, Srinagar, India
| | | | - Sahar Saleem Bhat
- Division of Animal Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology-Kashmir, Faculty of Veterinary Sciences and Animal Husbandry, Srinagar, India
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10
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Mir HA, Ali R, Wani ZA, Khanday FA. Pro-oxidant vitamin C mechanistically exploits p66Shc/Rac1GTPase pathway in inducing cytotoxicity. Int J Biol Macromol 2022; 205:154-168. [PMID: 35181322 DOI: 10.1016/j.ijbiomac.2022.02.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 01/25/2022] [Accepted: 02/09/2022] [Indexed: 12/25/2022]
Abstract
P66Shc is the master regulator of oxidative stress whose pro-oxidant functioning is governed by ser36 phosphorylation. Phosphorylated p66Shc via Rac1GTPase activation modulates ROS levels which in turn influence its pro-oxidative functions. Vitamin C at higher concentrations exhibits cytotoxic activity in various cancers, inducing ROS mediated cell death via pro-apoptotic mechanisms. Here we show a novel role of p66Shc in mediating pro-oxidant activity of vitamin C. Effect of vitamin C on the viability of breast cancer and normal cells was studied. High doses of vitamin C decreased viability of cancerous cells but not normal cells. Docking study displayed significant binding affinity of vitamin C with p66Shc PTB domain. Western blot results suggest that vitamin C not only enhances p66Shc expression but also induces its ser36 phosphorylation. Vitamin C at high doses was also found to activate Rac1, enhance ROS production and induce apoptosis. Interestingly, ser36 phosphorylation mutant transfection and pretreatment with antioxidant N-acetylcysteine results indicate that vitamin C induced Rac1 activation, ROS production and apoptosis is p66Shc ser36 phosphorylation dependent. Overall, results highlight that vitamin C mechanistically explores p66Shc/Rac1 pathway in inducing apoptosis and thus can pave a way to use this pathway as a potential therapeutic target in breast cancers.
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Affiliation(s)
- Hilal Ahmad Mir
- Department of Biotechnology, University of Kashmir, Srinagar, Jammu and Kashmir 190006, India
| | - Roshia Ali
- Department of Biochemistry, University of Kashmir, Srinagar, Jammu and Kashmir 190006, India
| | - Zahoor Ahmad Wani
- Department of Biotechnology, University of Kashmir, Srinagar, Jammu and Kashmir 190006, India
| | - Firdous Ahmad Khanday
- Department of Biotechnology, University of Kashmir, Srinagar, Jammu and Kashmir 190006, India.
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11
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Parthasarathy S, Srivatsa S, Weber AI, Gräber N, Britanova OV, Borisova E, Bessa P, Ambrozkiewicz MC, Rosário M, Tarabykin V. TrkC-T1, the Non-Catalytic Isoform of TrkC, Governs Neocortical Progenitor Fate Specification by Inhibition of MAP Kinase Signaling. Cereb Cortex 2021; 31:5470-5486. [PMID: 34259839 DOI: 10.1093/cercor/bhab172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 05/25/2021] [Accepted: 05/25/2021] [Indexed: 12/26/2022] Open
Abstract
Neocortical projection neurons are generated by neural progenitor cells (NPCs) within the ventricular and subventricular zone. While early NPCs can give rise to both deep and upper layer neurons, late progenitors are restricted to upper layer neurogenesis. The molecular mechanisms controlling the differentiation potential of early versus late NPCs are unknown. Here, we report a novel function for TrkC-T1, the non-catalytic isoform of the neurotrophin receptor TrkC, that is distinct from TrkC-TK+, the full-length isoform. We provide direct evidence that TrkC-T1 regulates the switch in NPC fate from deep to upper layer neuron production. Elevated levels of TrkC-T1 in early NPCs promote the generation of deep layer neurons. Conversely, downregulation of TrkC-T1 in these cells promotes upper layer neuron fate. Furthermore, we show that TrkC-T1 exerts this control by interaction with the signaling adaptor protein ShcA. TrkC-T1 prevents the phosphorylation of Shc and the downstream activation of the MAP kinase (Erk1/2) pathway. In vivo manipulation of the activity of ShcA or Erk1/2, directly affects cortical neuron cell fate. We thus show that the generation of upper layer neurons by late progenitors is dependent on the downregulation of TrkC-T1 in late progenitor cells and the resulting activation of the ShcA/Erk1/2 pathway.
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Affiliation(s)
- Srinivas Parthasarathy
- Charité- Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Institute for Cell and Neurobiology, Cluster of Excellence NeuroCure, 10117, Germany
| | - Swathi Srivatsa
- Charité- Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Institute for Cell and Neurobiology, Cluster of Excellence NeuroCure, 10117, Germany
| | - A Ioana Weber
- Charité- Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Institute for Cell and Neurobiology, Cluster of Excellence NeuroCure, 10117, Germany
| | - Nikolaus Gräber
- Charité- Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Institute for Cell and Neurobiology, Cluster of Excellence NeuroCure, 10117, Germany
| | - Olga V Britanova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 117871, Russian Federation
| | - Ekaterina Borisova
- Institute of Neuroscience, Lobachevsky University of Nizhny Novgorod, Nizhny Novgorod 603950, Russian Federation
| | - Paraskevi Bessa
- Charité- Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Institute for Cell and Neurobiology, Cluster of Excellence NeuroCure, 10117, Germany
| | - Mateusz C Ambrozkiewicz
- Charité- Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Institute for Cell and Neurobiology, Cluster of Excellence NeuroCure, 10117, Germany
| | - Marta Rosário
- Charité- Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Institute for Cell and Neurobiology, Cluster of Excellence NeuroCure, 10117, Germany
| | - Victor Tarabykin
- Charité- Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Institute for Cell and Neurobiology, Cluster of Excellence NeuroCure, 10117, Germany
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12
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Mushtaq U, Bashir M, Nabi S, Khanday FA. Epidermal growth factor receptor and integrins meet redox signaling through P66shc and Rac1. Cytokine 2021; 146:155625. [PMID: 34157521 DOI: 10.1016/j.cyto.2021.155625] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 05/23/2021] [Accepted: 06/08/2021] [Indexed: 12/24/2022]
Abstract
This review examines the concerted role of Epidermal Growth Factor Receptor (EGFR) and integrins in regulating Reactive oxygen species (ROS) production through different signaling pathways. ROS as such are not always deleterious to the cells but they also act as signaling molecules, that regulates numerous indespensible physiological fuctions of life. Many adaptor proteins, particularly Shc and Grb2, are involved in mediating the downstream signaling pathways stimulated by EGFR and integrins. Integrin-induced activation of EGFR and subsequent tyrosine phosphorylation of a class of acceptor sites on EGFR leads to alignment and tyrosine phosphorylation of Shc, PLCγ, the p85 subunit of PI-3 K, and Cbl, followed by activation of the downstream targets Erk and Akt/PKB. Functional interactions between these receptors result in the activation of Rac1 via these adaptor proteins, thereby leading to Reactive Oxygen Species. Both GF and integrin activation can produce oxidants independently, however synergistically there is increased ROS generation, suggesting a mutual cooperation between integrins and GFRs for redox signalling. The ROS produced further promotes feed-forward stimulation of redox signaling events such as MAPK activation and gene expression. This relationship has not been reviewed previously. The literature presented here can have multiple implications, ranging from looking at synergistic effects of integrin and EGFR mediated signaling mechanisms of different proteins to possible therapeutic interventions operated by these two receptors. Furthermore, such mutual redox regulation of crosstalk between EGFR and integrins not only add to the established models of pathological oxidative stress, but also can impart new avenues and opportunities for targeted antioxidant based therapeutics.
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Affiliation(s)
- Umar Mushtaq
- Department of Biotechnology, University of Kashmir, Srinagar, JK 190006, India; Department of Biotechnology, Central University of Kashmir, Ganderbal, JK 191201, India
| | - Muneesa Bashir
- Department of Biotechnology, University of Kashmir, Srinagar, JK 190006, India; Department of Higher Education, Government of Jammu & Kashmir, 190001, India
| | - Sumaiya Nabi
- Department of Biochemistry, University of Kashmir, Srinagar, JK 190006, India
| | - Firdous A Khanday
- Department of Biotechnology, University of Kashmir, Srinagar, JK 190006, India.
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13
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Prill M, Karkucinska-Wieckowska A, Lebiedzinska-Arciszewska M, Morciano G, Charzynska A, Dabrowski M, Pronicki M, Pinton P, Grajkowska W, Wieckowski MR. Ras, TrkB, and ShcA Protein Expression Patterns in Pediatric Brain Tumors. J Clin Med 2021; 10:jcm10102219. [PMID: 34065573 PMCID: PMC8160917 DOI: 10.3390/jcm10102219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 05/13/2021] [Accepted: 05/17/2021] [Indexed: 11/16/2022] Open
Abstract
Numerous papers have reported altered expression patterns of Ras and/or ShcA proteins in different types of cancers. Their level can be potentially associated with oncogenic processes. We analyzed samples of pediatric brain tumors reflecting different groups such as choroid plexus tumors, diffuse astrocytic and oligodendroglial tumors, embryonal tumors, ependymal tumors, and other astrocytic tumors as well as tumor malignancy grade, in order to characterize the expression profile of Ras, TrkB, and three isoforms of ShcA, namely, p66Shc, p52Shc, and p46Shc proteins. The main aim of our study was to evaluate the potential correlation between the type of pediatric brain tumors, tumor malignancy grade, and the expression patterns of the investigated proteins.
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Affiliation(s)
- Monika Prill
- Laboratory of Mitochondrial Biology and Metabolism, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland; (M.P.); (M.L.-A.)
| | | | - Magdalena Lebiedzinska-Arciszewska
- Laboratory of Mitochondrial Biology and Metabolism, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland; (M.P.); (M.L.-A.)
| | - Giampaolo Morciano
- Department of Medical Sciences, Section of Experimental Medicine, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy; (G.M.); (P.P.)
| | - Agata Charzynska
- Laboratory of Bioinformatics, Nencki Institute of Experimental Biology, 02-093 Warsaw, Poland; (A.C.); (M.D.)
| | - Michal Dabrowski
- Laboratory of Bioinformatics, Nencki Institute of Experimental Biology, 02-093 Warsaw, Poland; (A.C.); (M.D.)
| | - Maciej Pronicki
- Department of Pathology, The Children’s Memorial Health Institute, 04-730 Warsaw, Poland; (A.K.-W.); (M.P.)
| | - Paolo Pinton
- Department of Medical Sciences, Section of Experimental Medicine, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy; (G.M.); (P.P.)
| | - Wieslawa Grajkowska
- Department of Pathology, The Children’s Memorial Health Institute, 04-730 Warsaw, Poland; (A.K.-W.); (M.P.)
- Correspondence: (W.G.); (M.R.W.)
| | - Mariusz R. Wieckowski
- Laboratory of Mitochondrial Biology and Metabolism, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland; (M.P.); (M.L.-A.)
- Correspondence: (W.G.); (M.R.W.)
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14
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Miller B, Kostrominova TY, Geurts AM, Sorokin A. Double p52Shc/p46Shc Rat Knockout Demonstrates Severe Gait Abnormalities Accompanied by Dilated Cardiomyopathy. Int J Mol Sci 2021; 22:5237. [PMID: 34063460 PMCID: PMC8155973 DOI: 10.3390/ijms22105237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 05/03/2021] [Accepted: 05/12/2021] [Indexed: 12/04/2022] Open
Abstract
The ubiquitously expressed adaptor protein Shc exists in three isoforms p46Shc, p52Shc, and p66Shc, which execute distinctly different actions in cells. The role of p46Shc is insufficiently studied, and the purpose of this study was to further investigate its functional significance. We developed unique rat mutants lacking p52Shc and p46Shc isoforms (p52Shc/46Shc-KO) and carried out histological analysis of skeletal and cardiac muscle of parental and genetically modified rats with impaired gait. p52Shc/46Shc-KO rats demonstrate severe functional abnormalities associated with impaired gait. Our analysis of p52Shc/46Shc-KO rat axons and myelin sheets in cross-sections of the sciatic nerve revealed the presence of significant anomalies. Based on the lack of skeletal muscle fiber atrophy and the presence of sciatic nerve abnormalities, we suggest that the impaired gait in p52Shc/46Shc-KO rats might be due to the sensory feedback from active muscle to the brain locomotor centers. The lack of dystrophin in some heart muscle fibers reflects damage due to dilated cardiomyopathy. Since rats with only p52Shc knockout do not display the phenotype of p52Shc/p46Shc-KO, abnormal locomotion is likely to be caused by p46Shc deletion. Our data suggest a previously unknown role of 46Shc actions and signaling in regulation of gait.
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Affiliation(s)
- Bradley Miller
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53266, USA;
| | - Tatiana Y. Kostrominova
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine-Northwest, Gary, IN 46408, USA;
| | - Aron M. Geurts
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI 53266, USA;
| | - Andrey Sorokin
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53266, USA;
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15
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Ma H, Wang C, Liu X, Zhan M, Wei W, Niu J. Src homolog and collagen homolog1 isoforms in acute and chronic liver injuries. Life Sci 2021; 273:119302. [PMID: 33662427 DOI: 10.1016/j.lfs.2021.119302] [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] [Received: 12/21/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 02/06/2023]
Abstract
Src homolog and collagen homolog (SHC) proteins are adaptor proteins bound to cell surface receptors that play an important role in signal transduction and related diseases. As an important member of the SHC protein family, SHC1 regulates cell proliferation and apoptosis, reactive oxygen species (ROS) production, and oxidative stress. Three isomeric proteins namely, p46shc, p52shc, and p66shc, are produced from the same SHC1 gene locus. All the three proteins are found in the liver, and are widely expressed in various hepatic cells. SHC1 has been proven to be associated with acute and chronic liver injuries of different etiologies, and plays important roles in liver fibrosis and hepatocellular carcinoma (HCC). Therefore, this review summarizes recent studies that discuss and explore the role of SHC1 in the occurrence and progression of liver diseases. We also provide a theoretical basis for future studies.
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Affiliation(s)
- Heming Ma
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Chang Wang
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Xu Liu
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Mengru Zhan
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Wei Wei
- Institute of Virology and AIDS Research, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Junqi Niu
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
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16
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Cañedo EC, Totten S, Ahn R, Savage P, MacNeil D, Hudson J, Autexier C, Deblois G, Park M, Witcher M, Ursini-Siegel J. p66ShcA potentiates the cytotoxic response of triple-negative breast cancers to PARP inhibitors. JCI Insight 2021; 6:138382. [PMID: 33470989 PMCID: PMC7934920 DOI: 10.1172/jci.insight.138382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 01/15/2021] [Indexed: 11/17/2022] Open
Abstract
Triple-negative breast cancers (TNBCs) lack effective targeted therapies, and cytotoxic chemotherapies remain the standard of care for this subtype. Owing to their increased genomic instability, poly (ADP-ribose) polymerase (PARP) inhibitors (PARPi) are being tested against TNBCs. In particular, clinical trials are now interrogating the efficacy of PARPi combined with chemotherapies. Intriguingly, while response rates are low, cohort of patients do respond to PARPi in combination with chemotherapies. Moreover, recent studies suggest that an increase in levels of ROS may sensitize cells to PARPi. This represents a therapeutic opportunity, as several chemotherapies, including doxorubicin, function in part by producing ROS. We previously demonstrated that the p66ShcA adaptor protein is variably expressed in TNBCs. We now show that, in response to therapy-induced stress, p66ShcA stimulated ROS production, which, in turn, potentiated the synergy of PARPi in combination with doxorubicin in TNBCs. This p66ShcA-induced sensitivity relied on the accumulation of oxidative damage in TNBCs, rather than genomic instability, to potentiate cell death. These findings suggest that increasing the expression of p66ShcA protein levels in TNBCs represents a rational approach to bolster the synergy between PARPi and doxorubicin.
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Affiliation(s)
- Eduardo Cepeda Cañedo
- Lady Davis Institute for Medical Research, Montreal, Québec, Canada.,Division of Experimental Medicine
| | - Stephanie Totten
- Lady Davis Institute for Medical Research, Montreal, Québec, Canada.,Division of Experimental Medicine
| | - Ryuhjin Ahn
- Lady Davis Institute for Medical Research, Montreal, Québec, Canada.,Division of Experimental Medicine
| | - Paul Savage
- Goodman Cancer Research Centre.,Department of Biochemistry, and
| | - Deanna MacNeil
- Lady Davis Institute for Medical Research, Montreal, Québec, Canada.,Department of Anatomy and Cell Biology, McGill University, Montreal, Québec, Canada
| | - Jesse Hudson
- Lady Davis Institute for Medical Research, Montreal, Québec, Canada.,Division of Experimental Medicine
| | - Chantal Autexier
- Lady Davis Institute for Medical Research, Montreal, Québec, Canada.,Department of Anatomy and Cell Biology, McGill University, Montreal, Québec, Canada
| | - Genevieve Deblois
- Institute for Research in Immunology and Cancer, Montreal, Québec, Canada
| | - Morag Park
- Goodman Cancer Research Centre.,Department of Biochemistry, and
| | - Michael Witcher
- Lady Davis Institute for Medical Research, Montreal, Québec, Canada.,Division of Experimental Medicine.,Gerald Bronfman Department of Oncology, McGill University, Montreal, Québec, Canada
| | - Josie Ursini-Siegel
- Lady Davis Institute for Medical Research, Montreal, Québec, Canada.,Division of Experimental Medicine.,Department of Biochemistry, and.,Gerald Bronfman Department of Oncology, McGill University, Montreal, Québec, Canada
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17
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Loureiro CA, Pinto FR, Barros P, Matos P, Jordan P. A SYK/SHC1 pathway regulates the amount of CFTR in the plasma membrane. Cell Mol Life Sci 2020; 77:4997-5015. [PMID: 31974654 PMCID: PMC11105000 DOI: 10.1007/s00018-020-03448-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 12/06/2019] [Accepted: 01/02/2020] [Indexed: 11/24/2022]
Abstract
Mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene cause the recessive genetic disease cystic fibrosis, where the chloride transport across the apical membrane of epithelial cells mediated by the CFTR protein is impaired. CFTR protein trafficking to the plasma membrane (PM) is the result of a complex interplay between the secretory and membrane recycling pathways that control the number of channels present at the membrane. In addition, the ion transport activity of CFTR at the PM is modulated through post-translational protein modifications. Previously we described that spleen tyrosine kinase (SYK) phosphorylates a specific tyrosine residue in the nucleotide-binding domain 1 domain and this modification can regulate the PM abundance of CFTR. Here we identified the underlying biochemical mechanism using peptide pull-down assays followed by mass spectrometry. We identified in bronchial epithelial cells that the adaptor protein SHC1 recognizes tyrosine-phosphorylated CFTR through its phosphotyrosine-binding domain and that the formation of a complex between SHC1 and CFTR is induced at the PM in the presence of activated SYK. The depletion of endogenous SHC1 expression was sufficient to promote an increase in CFTR at the PM of these cells. The results identify a SYK/SHC1 pathway that regulates the PM levels of CFTR channels, contributing to a better understanding of how CFTR-mediated chloride secretion is regulated.
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Affiliation(s)
- Cláudia Almeida Loureiro
- Department of Human Genetics, National Health Institute 'Dr. Ricardo Jorge', Avenida Padre Cruz, 1649-016, Lisbon, Portugal
- BioISI-Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - Francisco R Pinto
- BioISI-Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
- Department of Chemistry and Biochemistry, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - Patrícia Barros
- Department of Human Genetics, National Health Institute 'Dr. Ricardo Jorge', Avenida Padre Cruz, 1649-016, Lisbon, Portugal
- BioISI-Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - Paulo Matos
- Department of Human Genetics, National Health Institute 'Dr. Ricardo Jorge', Avenida Padre Cruz, 1649-016, Lisbon, Portugal
- BioISI-Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
- Department of Chemistry and Biochemistry, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - Peter Jordan
- Department of Human Genetics, National Health Institute 'Dr. Ricardo Jorge', Avenida Padre Cruz, 1649-016, Lisbon, Portugal.
- BioISI-Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal.
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18
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Mir HA, Ali R, Mushtaq U, Khanday FA. Structure-functional implications of longevity protein p66Shc in health and disease. Ageing Res Rev 2020; 63:101139. [PMID: 32795504 DOI: 10.1016/j.arr.2020.101139] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/17/2020] [Accepted: 08/06/2020] [Indexed: 12/15/2022]
Abstract
ShcA (Src homologous- collagen homologue), family of adapter proteins, consists of three isoforms which integrate and transduce external stimuli to different signaling networks. ShcA family consists of p46Shc, p52Shc and p66Shc isoforms, characterized by having multiple protein-lipid and protein-protein interaction domains implying their functional diversity. Among the three isoforms p66Shc is structurally different containing an additional CH2 domain which attributes to its dual functionality in cell growth, mediating both cell proliferation and apoptosis. Besides, p66Shc is also involved in different biological processes including reactive oxygen species (ROS) production, cell migration, ageing, cytoskeletal reorganization and cell adhesion. Moreover, the interplay between p66Shc and ROS is implicated in the pathology of various dreadful diseases. Accordingly, here we discuss the recent structural aspects of all ShcA adaptor proteins but are highlighting the case of p66Shc as model isoform. Furthermore, this review insights the role of p66Shc in progression of chronic age-related diseases like neuro diseases, metabolic disorders (non-alcoholic fatty liver, obesity, diabetes, cardiovascular diseases, vascular endothelial dysfunction) and cancer in relation to ROS. We finally conclude that p66Shc might act as a valuable biomarker for the prognosis of these diseases and could be used as a potential therapeutic target.
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19
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LRTM1 promotes the differentiation of myoblast cells by negatively regulating the FGFR1 signaling pathway. Exp Cell Res 2020; 396:112237. [PMID: 32841643 DOI: 10.1016/j.yexcr.2020.112237] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 07/28/2020] [Accepted: 08/13/2020] [Indexed: 11/23/2022]
Abstract
The proliferation and differentiation of myoblast cells are regulated by the fibroblast growth factor receptor (FGFR) signaling pathway. Although the regulation of FGFR signaling cascades has been widely investigated, the inhibitory mechanism that particularly function in skeletal muscle myogenesis remains obscure. In this study, we determined that LRTM1, an inhibitory regulator of the FGFR signaling pathway, negatively modulates the activation of ERK and promotes the differentiation of myoblast cells. LRTM1 is dynamically expressed during myoblast differentiation and skeletal muscle regeneration after injury. In mouse myoblast C2C12 cells, knockout (KO) of Lrtm1 significantly prevents the differentiation of myoblast cells; this effect is associated with the reduction of MyoD transcriptional activity and the overactivation of ERK kinase. Notably, further studies demonstrated that LRTM1 associates with p52Shc and inhibits the recruitment of p52Shc to FGFR1. Taken together, our findings identify a novel negative regulator of FGFR1, which plays an important role in regulating the differentiation of myoblast cells.
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20
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Zhao Y, Wang Y, Zhao E, Tan Y, Geng B, Kang C, Li X. PTRF/CAVIN1, regulated by SHC1 through the EGFR pathway, is found in urine exosomes as a potential biomarker of ccRCC. Carcinogenesis 2020; 41:274-283. [PMID: 31605605 DOI: 10.1093/carcin/bgz147] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/07/2019] [Accepted: 08/20/2019] [Indexed: 01/10/2023] Open
Abstract
Polymerase I and transcript release factor (PTRF)/Cavin1 regulates RNA polymerase I during transcription and plays a critical role in endocytosis. Abnormal expressions of PTRF were detected in multiple cancers according to increasing research. PTRF has been showed to involve in the formation and secretion of exosomes and can be detected in the exosomes, which suggests that PTRF would be a potential biomarker for diagnosis of clear cell renal cell carcinoma (ccRCC) using urine samples. Approximately 50-90% of ccRCC cases suffered abnormal epidermal growth factor receptor (EGFR), which activates a variety of signaling pathways, including the mitogen-activated protein kinase/extracellular signal-regulated kinase and Phosphoinositide 3-Kinase/Akt pathway. According to bioinformatic analysis of gene expression arrays of kidney clear cell carcinoma from The Cancer Genome Atlas, we found SHC1 was significantly overexpressed in high-grade ccRCC and correlated to poor prognosis, and also SHC1 was annotated in extracellular matrix process, which was regulated by EGFR. Further studies showed that the expression of PTRF was regulated by SHC1 through EGFR-Phosphoinositide 3-Kinase/Akt pathway. PTRF was detected in the exosomes isolated from ccRCC patients' urine and ccRCC cancer cells culture medium. It suggested that the abnormal SHC1-increased PTRF, which is detected in exosomes from urine, would be a potential marker for ccRCC diagnose and treatment.
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Affiliation(s)
- Yubo Zhao
- Department of Urology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yunfei Wang
- Laboratory of Neuro-oncology, Tianjin Neurological Institute, Department of Neurosurgery, Tianjin Medical University General Hospital; Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
| | - Enyang Zhao
- Department of Urology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yanli Tan
- Department of Pathology, Affiliated Hospital of Hebei University, Baoding, China
| | - Bo Geng
- Department of Urology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chunsheng Kang
- Laboratory of Neuro-oncology, Tianjin Neurological Institute, Department of Neurosurgery, Tianjin Medical University General Hospital; Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, China
| | - Xuedong Li
- Department of Urology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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21
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The mystery of mitochondria-ER contact sites in physiology and pathology: A cancer perspective. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165834. [PMID: 32437958 DOI: 10.1016/j.bbadis.2020.165834] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 04/29/2020] [Accepted: 05/01/2020] [Indexed: 12/13/2022]
Abstract
Mitochondria-associated membranes (MAM), physical platforms that enable communication between mitochondria and the endoplasmic reticulum (ER), are enriched with many proteins and enzymes involved in several crucial cellular processes, such as calcium (Ca2+) homeostasis, lipid synthesis and trafficking, autophagy and reactive oxygen species (ROS) production. Accumulating studies indicate that tumor suppressors and oncogenes are present at these intimate contacts between mitochondria and the ER, where they influence Ca2+ flux between mitochondria and the ER or affect lipid homeostasis at MAM, consequently impacting cell metabolism and cell fate. Understanding these fundamental roles of mitochondria-ER contact sites as important domains for tumor suppressors and oncogenes can support the search for new and more precise anticancer therapies. In the present review, we summarize the current understanding of basic MAM biology, composition and function and discuss the possible role of MAM-resident oncogenes and tumor suppressors.
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22
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P66Shc: A Pleiotropic Regulator of B Cell Trafficking and a Gatekeeper in Chronic Lymphocytic Leukemia. Cancers (Basel) 2020; 12:cancers12041006. [PMID: 32325830 PMCID: PMC7226591 DOI: 10.3390/cancers12041006] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/11/2020] [Accepted: 04/16/2020] [Indexed: 12/20/2022] Open
Abstract
Neoplastic B cells from chronic lymphocytic leukemia patients (CLL) have a profound deficiency in the expression of p66Shc, an adaptor protein with pro-apoptotic and pro-oxidant activities. This defect results in leukemic B cell resistance to apoptosis and additionally impinges on the balance between chemokine receptors that control B cell homing to secondary lymphoid organs and the sphingosine phosphate receptor S1PR1 that controls their egress therefrom, thereby favoring leukemic B cell accumulation in the pro-survival lymphoid niche. Ablation of the gene encoding p66Shc in the Eµ-TCL1 mouse model of human CLL enhances leukemogenesis and promotes leukemic cell invasiveness in both nodal and extranodal organs, providing in vivo evidence of the pathogenic role of the p66Shc defect in CLL pathogenesis. Here we present an overview of the functions of p66Shc in B lymphocytes, with a specific focus on the multiple mechanisms exploited by p66Shc to control B cell trafficking and the abnormalities in this process caused by p66Shc deficiency in CLL.
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23
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Xiao Y, Xia J, Cheng J, Huang H, Zhou Y, Yang X, Su X, Ke Y, Ling W. Inhibition of S-Adenosylhomocysteine Hydrolase Induces Endothelial Dysfunction via Epigenetic Regulation of p66shc-Mediated Oxidative Stress Pathway. Circulation 2020; 139:2260-2277. [PMID: 30773021 DOI: 10.1161/circulationaha.118.036336] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Elevated levels of S-adenosylhomocysteine (SAH), the precursor of homocysteine, are positively associated with the risk of cardiovascular disease and with the development and progression of atherosclerosis. However, the role of SAH in endothelial dysfunction is unclear. METHODS Apolipoprotein E-deficient ( apoE-/-) mice received dietary supplementation with the SAH hydrolase (SAHH) inhibitor adenosine dialdehyde or were intravenously injected with a retrovirus expressing SAHH shRNA. These 2 approaches, along with the heterozygous SAHH gene knockout ( SAHH+/-) mouse model, were used to elevate plasma SAH levels and to examine the role of SAH in aortic endothelial dysfunction. The relationship between plasma SAH levels and endothelial dysfunction was also investigated in human patients with coronary artery disease and healthy control subjects. RESULTS Plasma SAH levels were increased in SAHH+/- mice and in apoE-/- mice after dietary administration of adenosine dialdehyde or intravenous injection with SAHH shRNA. SAHH+/- mice or apoE-/- mice with SAHH inhibition showed impaired endothelium-dependent vascular relaxation and decreased nitric oxide bioavailability after treatment with acetylcholine; this was completely abolished by the administration of the endothelial nitric oxide synthase inhibitor NG-nitro-l-arginine methyl ester. Furthermore, SAHH inhibition induced production of reactive oxygen species and p66shc expression in the mouse aorta and human aortic endothelial cells. Antioxidants and p66shc siRNA prevented SAHH inhibition-induced generation of reactive oxygen species and attenuated the impaired endothelial vasomotor responses in high-SAH mice. Moreover, inhibition of SAHH induced hypomethylation in the p66shc gene promoter and inhibited expression of DNA methyltransferase 1. Overexpression of DNA methyltransferase 1, induced by transduction of an adenovirus, was sufficient to abrogate SAHH inhibition-induced upregulation of p66shc expression. Finally, plasma SAH levels were inversely associated with flow-mediated dilation and hypomethylation of the p66shc gene promoter and positively associated with oxidative stress levels in patients with coronary artery disease and healthy control subjects. CONCLUSIONS Our findings indicate that inhibition of SAHH results in elevated plasma SAH levels and induces endothelial dysfunction via epigenetic upregulation of the p66shc-mediated oxidative stress pathway. Our study provides novel molecular insight into mechanisms of SAH-associated endothelial injury that may contribute to the development of atherosclerosis. CLINICAL TRIAL REGISTRATION URL: https://www.clinicaltrials.gov . Unique identifier: NCT03345927.
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Affiliation(s)
- Yunjun Xiao
- Shenzhen Key Laboratory of Molecular Epidemiology (Y.X., J.X., J.C., Y.Z., YK.), Shenzhen Center for Disease Control and Prevention, Guangdong, China
| | - Junjie Xia
- Shenzhen Key Laboratory of Molecular Epidemiology (Y.X., J.X., J.C., Y.Z., YK.), Shenzhen Center for Disease Control and Prevention, Guangdong, China
| | - Jinquan Cheng
- Shenzhen Key Laboratory of Molecular Epidemiology (Y.X., J.X., J.C., Y.Z., YK.), Shenzhen Center for Disease Control and Prevention, Guangdong, China
| | - Haiyan Huang
- Key Laboratory of Modern Toxicology of Shenzhen (H.H., X.Y.), Shenzhen Center for Disease Control and Prevention, Guangdong, China
| | - Yani Zhou
- Shenzhen Key Laboratory of Molecular Epidemiology (Y.X., J.X., J.C., Y.Z., YK.), Shenzhen Center for Disease Control and Prevention, Guangdong, China
| | - Xifei Yang
- Key Laboratory of Modern Toxicology of Shenzhen (H.H., X.Y.), Shenzhen Center for Disease Control and Prevention, Guangdong, China
| | - Xuefen Su
- School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, China (X.S.)
| | - Yuebin Ke
- Shenzhen Key Laboratory of Molecular Epidemiology (Y.X., J.X., J.C., Y.Z., YK.), Shenzhen Center for Disease Control and Prevention, Guangdong, China
| | - Wenhua Ling
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China (W.L.)
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24
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Onnis A, Cassioli C, Finetti F, Baldari CT. Regulation of Selective B Cell Autophagy by the Pro-oxidant Adaptor p66SHC. Front Cell Dev Biol 2020; 8:193. [PMID: 32274384 PMCID: PMC7113388 DOI: 10.3389/fcell.2020.00193] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 03/06/2020] [Indexed: 01/28/2023] Open
Abstract
p66SHC is a pro-oxidant member of the SHC family of protein adaptors that acts as a negative regulator of cell survival. In lymphocytes p66SHC exploits both its adaptor and its reactive oxygen species (ROS)-elevating function to antagonize mitogenic and survival signaling and promote apoptosis. As a result, p66SHC deficiency leads to the abnormal expansion of peripheral T and B cells and lupus-like autoimmunity. Additionally, a defect in p66SHC expression is a hallmark of B cell chronic lymphocytic leukemia, where it contributes to the accumulation of long-lived neoplastic cells. We have recently provided evidence that p66SHC exerts a further layer of control on B cell homeostasis by acting as a new mitochondrial LC3-II receptor to promote the autophagic demise of dysfunctional mitochondria. Here we discuss this finding in the context of the autophagic control of B cell homeostasis, development, and differentiation in health and disease.
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Affiliation(s)
- Anna Onnis
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Chiara Cassioli
- Department of Life Sciences, University of Siena, Siena, Italy
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25
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Wang D, Wang T, Wang R, Zhang X, Wang L, Xiang Z, Zhuang L, Shen S, Wang H, Gao Q, Wang Y. Suppression of p66Shc prevents hyperandrogenism-induced ovarian oxidative stress and fibrosis. J Transl Med 2020; 18:84. [PMID: 32066482 PMCID: PMC7027222 DOI: 10.1186/s12967-020-02249-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 01/28/2020] [Indexed: 01/29/2023] Open
Abstract
Background Rats with hyperandrogen-induced polycystic ovary syndrome (PCOS) have been shown to develop ovarian oxidative stress (OS) and fibrosis. The Sirt1 agonist, resveratrol, can reduce OS through inhibiting p66Shc in other models of OS. Methods We created a rat PCOS model with increased OS levels following treatment with one of the two androgens, dehydroepiandrosterone (DHEA) and dihydrotestosterone (DHT). The PCOS related features were determined by measurement of malondialdehyde (MDA) and superoxide dismutase (SOD) levels or by examining the reactive oxygen species (ROS) levels using the DCF-DA probe. The potential mechanisms by which p66Shc/Sirt1 mediates ovarian fibrosis were explored by western blotting, quantitative reverse transcription-PCR, immunofluorescence staining, and immunohistochemistry. Results Hyperandrogen dramatically augmented OS and activation of fibrotic factors in the ovary. Our data demonstrated that treatment with resveratrol enhanced Sirt1 and decreased ovarian OS as well as inhibited phosphorylation of p66Shc both in vivo and in vitro. The treatment suppressed fibrotic factor activation and improved ovarian morphology. Lentivirus- or siRNA-mediated p66Shc knockdown resulted in a dramatic enhancement of Sirt1 expression, down-regulation of ROS and suppression of fibrotic factors in granulosa cells. Moreover, p66Shc overexpression markedly increased the expression of fibrotic factors. Additionally, silencing Sirt1 induced a dramatic increase in p66Shc and enhanced activation of fibrotic factors. Conclusions p66Shc may be a direct target of Sirt1 for inducing ROS and thus promoting fibrosis. Further exploration of the mechanisms of p66Shc in both fibrosis and OS may provide novel therapeutic strategies that will facilitate the improvement in PCOS symptoms and reproductive functions.
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Affiliation(s)
- Daojuan Wang
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Tingyu Wang
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Rong Wang
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Xinlin Zhang
- Department of Cardiology, Affiliated Drum Tower Hospital, Nanjing University School of Medicine, 321 Zhongshan Road, 210008, Nanjing, Jiangsu Province, China
| | - Lei Wang
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Zou Xiang
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Lingjia Zhuang
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Shanmei Shen
- Department of Endocrinology, The Affiliated Drum Tower Hospital, Medical School, Nanjing University, Nanjing, 210093, China
| | - Hongwei Wang
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Qian Gao
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China.
| | - Yong Wang
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China.
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26
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Lewis K, Kiepas A, Hudson J, Senecal J, Ha JR, Voorand E, Annis MG, Sabourin V, Ahn R, La Selva R, Tabariès S, Hsu BE, Siegel MJ, Dankner M, Canedo EC, Lajoie M, Watson IR, Brown CM, Siegel PM, Ursini-Siegel J. p66ShcA functions as a contextual promoter of breast cancer metastasis. Breast Cancer Res 2020; 22:7. [PMID: 31941526 PMCID: PMC6964019 DOI: 10.1186/s13058-020-1245-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 01/05/2020] [Indexed: 01/25/2023] Open
Abstract
Background The p66ShcA redox protein is the longest isoform of the Shc1 gene and is variably expressed in breast cancers. In response to a variety of stress stimuli, p66ShcA becomes phosphorylated on serine 36, which allows it to translocate from the cytoplasm to the mitochondria where it stimulates the formation of reactive oxygen species (ROS). Conflicting studies suggest both pro- and anti-tumorigenic functions for p66ShcA, which prompted us to examine the contribution of tumor cell-intrinsic functions of p66ShcA during breast cancer metastasis. Methods We tested whether p66ShcA impacts the lung-metastatic ability of breast cancer cells. Breast cancer cells characteristic of the ErbB2+/luminal (NIC) or basal (4T1) subtypes were engineered to overexpress p66ShcA. In addition, lung-metastatic 4T1 variants (4T1-537) were engineered to lack endogenous p66ShcA via Crispr/Cas9 genomic editing. p66ShcA null cells were then reconstituted with wild-type p66ShcA or a mutant (S36A) that cannot translocate to the mitochondria, thereby lacking the ability to stimulate mitochondrial-dependent ROS production. These cells were tested for their ability to form spontaneous metastases from the primary site or seed and colonize the lung in experimental (tail vein) metastasis assays. These cells were further characterized with respect to their migration rates, focal adhesion dynamics, and resistance to anoikis in vitro. Finally, their ability to survive in circulation and seed the lungs of mice was assessed in vivo. Results We show that p66ShcA increases the lung-metastatic potential of breast cancer cells by augmenting their ability to navigate each stage of the metastatic cascade. A non-phosphorylatable p66ShcA-S36A mutant, which cannot translocate to the mitochondria, still potentiated breast cancer cell migration, lung colonization, and growth of secondary lung metastases. However, breast cancer cell survival in the circulation uniquely required an intact p66ShcA S36 phosphorylation site. Conclusion This study provides the first evidence that both mitochondrial and non-mitochondrial p66ShcA pools collaborate in breast cancer cells to promote their maximal metastatic fitness.
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Affiliation(s)
- Kyle Lewis
- Lady Davis Institute for Medical Research, 3755 Chemin de la Côte-Sainte-Catherine, Montreal, QC, H3T 1E2, Canada.,Department of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC, H3G 1Y6, Canada
| | - Alex Kiepas
- Department of Physiology, McGill University, 3655 Promenade Sir William Osler, Montreal, QC, H3G 1Y6, Canada.,Goodman Cancer Research Centre, McGill University, 1160 Pine Avenue, West, Room 513, Montreal, QC, H3A 1A3, Canada
| | - Jesse Hudson
- Lady Davis Institute for Medical Research, 3755 Chemin de la Côte-Sainte-Catherine, Montreal, QC, H3T 1E2, Canada.,Division of Experimental Medicine, McGill University, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada
| | - Julien Senecal
- Goodman Cancer Research Centre, McGill University, 1160 Pine Avenue, West, Room 513, Montreal, QC, H3A 1A3, Canada.,Division of Experimental Medicine, McGill University, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada.,Department of Medicine, McGill University, 1001 Decarie Boulevard, Montreal, QC, H3G 1Y6, Canada
| | - Jacqueline R Ha
- Lady Davis Institute for Medical Research, 3755 Chemin de la Côte-Sainte-Catherine, Montreal, QC, H3T 1E2, Canada.,Division of Experimental Medicine, McGill University, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada
| | - Elena Voorand
- Department of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC, H3G 1Y6, Canada.,Goodman Cancer Research Centre, McGill University, 1160 Pine Avenue, West, Room 513, Montreal, QC, H3A 1A3, Canada
| | - Matthew G Annis
- Goodman Cancer Research Centre, McGill University, 1160 Pine Avenue, West, Room 513, Montreal, QC, H3A 1A3, Canada.,Department of Medicine, McGill University, 1001 Decarie Boulevard, Montreal, QC, H3G 1Y6, Canada
| | - Valerie Sabourin
- Lady Davis Institute for Medical Research, 3755 Chemin de la Côte-Sainte-Catherine, Montreal, QC, H3T 1E2, Canada
| | - Ryuhjin Ahn
- Lady Davis Institute for Medical Research, 3755 Chemin de la Côte-Sainte-Catherine, Montreal, QC, H3T 1E2, Canada.,Division of Experimental Medicine, McGill University, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada
| | - Rachel La Selva
- Lady Davis Institute for Medical Research, 3755 Chemin de la Côte-Sainte-Catherine, Montreal, QC, H3T 1E2, Canada.,Division of Experimental Medicine, McGill University, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada
| | - Sébastien Tabariès
- Goodman Cancer Research Centre, McGill University, 1160 Pine Avenue, West, Room 513, Montreal, QC, H3A 1A3, Canada.,Department of Medicine, McGill University, 1001 Decarie Boulevard, Montreal, QC, H3G 1Y6, Canada
| | - Brian E Hsu
- Goodman Cancer Research Centre, McGill University, 1160 Pine Avenue, West, Room 513, Montreal, QC, H3A 1A3, Canada.,Division of Experimental Medicine, McGill University, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada
| | - Matthew J Siegel
- Lady Davis Institute for Medical Research, 3755 Chemin de la Côte-Sainte-Catherine, Montreal, QC, H3T 1E2, Canada
| | - Matthew Dankner
- Goodman Cancer Research Centre, McGill University, 1160 Pine Avenue, West, Room 513, Montreal, QC, H3A 1A3, Canada.,Division of Experimental Medicine, McGill University, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada.,Department of Medicine, McGill University, 1001 Decarie Boulevard, Montreal, QC, H3G 1Y6, Canada
| | - Eduardo Cepeda Canedo
- Lady Davis Institute for Medical Research, 3755 Chemin de la Côte-Sainte-Catherine, Montreal, QC, H3T 1E2, Canada.,Department of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC, H3G 1Y6, Canada
| | - Mathieu Lajoie
- Goodman Cancer Research Centre, McGill University, 1160 Pine Avenue, West, Room 513, Montreal, QC, H3A 1A3, Canada
| | - Ian R Watson
- Department of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC, H3G 1Y6, Canada.,Goodman Cancer Research Centre, McGill University, 1160 Pine Avenue, West, Room 513, Montreal, QC, H3A 1A3, Canada
| | - Claire M Brown
- Department of Physiology, McGill University, 3655 Promenade Sir William Osler, Montreal, QC, H3G 1Y6, Canada
| | - Peter M Siegel
- Department of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC, H3G 1Y6, Canada. .,Goodman Cancer Research Centre, McGill University, 1160 Pine Avenue, West, Room 513, Montreal, QC, H3A 1A3, Canada. .,Department of Medicine, McGill University, 1001 Decarie Boulevard, Montreal, QC, H3G 1Y6, Canada.
| | - Josie Ursini-Siegel
- Lady Davis Institute for Medical Research, 3755 Chemin de la Côte-Sainte-Catherine, Montreal, QC, H3T 1E2, Canada. .,Department of Biochemistry, McGill University, 3655 Promenade Sir William Osler, Montreal, QC, H3G 1Y6, Canada. .,Division of Experimental Medicine, McGill University, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada. .,Gerald Bronfman Department of Oncology, McGill University, 5100 Maisonneuve Blvd West, Montreal, QC, H4A 3T2, Canada.
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27
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Wright KD, Miller BS, El-Meanawy S, Tsaih SW, Banerjee A, Geurts AM, Sheinin Y, Sun Y, Kalyanaraman B, Rui H, Flister MJ, Sorokin A. The p52 isoform of SHC1 is a key driver of breast cancer initiation. Breast Cancer Res 2019; 21:74. [PMID: 31202267 PMCID: PMC6570928 DOI: 10.1186/s13058-019-1155-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 05/23/2019] [Indexed: 01/23/2023] Open
Abstract
Background SHC1 proteins (also called SHCA) exist in three functionally distinct isoforms (p46SHC, p52SHC, and p66SHC) that serve as intracellular adaptors for several key signaling pathways in breast cancer. Despite the broad evidence implicating SHC1 gene products as a central mediator of breast cancer, testing the isoform-specific roles of SHC1 proteins have been inaccessible due to the lack of isoform-specific inhibitors or gene knockout models. Methods Here, we addressed this issue by generating the first isoform-specific gene knockout models for p52SHC and p66SHC, using germline gene editing in the salt-sensitive rat strain. Compared with the wild-type (WT) rats, we found that genetic ablation of the p52SHC isoform significantly attenuated mammary tumor formation, whereas the p66SHC knockout had no effect. Rats were dosed with 7,12-dimethylbenz(a)anthracene (DMBA) by oral gavage to induce mammary tumors, and progression of tumor development was followed for 15 weeks. At 15 weeks, tumors were excised and analyzed by RNA-seq to determine differences between tumors lacking p66SHC or p52SHC. Results Compared with the wild-type (WT) rats, we found that genetic ablation of the p52SHC isoform significantly attenuated mammary tumor formation, whereas the p66SHC knockout had no effect. These data, combined with p52SHC being the predominant isoform that is upregulated in human and rat tumors, provide the first evidence that p52SHC is the oncogenic isoform of Shc1 gene products in breast cancer. Compared with WT tumors, 893 differentially expressed (DE; FDR < 0.05) genes were detected in p52SHC KO tumors compared with only 18 DE genes in the p66SHC KO tumors, further highlighting that p52SHC is the relevant SHC1 isoform in breast cancer. Finally, gene network analysis revealed that p52SHC KO disrupted multiple key pathways that have been previously implicated in breast cancer initiation and progression, including ESR1 and mTORC2/RICTOR. Conclusion Collectively, these data demonstrate the p52SHC isoform is the key driver of DMBA-induced breast cancer while the expression of p66SHC and p46SHC are not enough to compensate. Electronic supplementary material The online version of this article (doi:10.1186/s13058-019-1155-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kevin D Wright
- Cardiovascular Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Department of Medicine, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Bradley S Miller
- Cardiovascular Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Department of Medicine, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Sarah El-Meanawy
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Free Radical Research Center, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Shirng-Wern Tsaih
- Cardiovascular Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Department of Physiology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Anjishnu Banerjee
- Institute for Health and Equity, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Aron M Geurts
- Cardiovascular Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Department of Physiology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Yuri Sheinin
- Department of Pathology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Yunguang Sun
- Department of Pathology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Balaraman Kalyanaraman
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Free Radical Research Center, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Hallgeir Rui
- Department of Pathology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Michael J Flister
- Cardiovascular Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.,Department of Physiology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Andrey Sorokin
- Cardiovascular Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA. .,Department of Medicine, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.
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28
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Boengler K, Bornbaum J, Schlüter KD, Schulz R. P66shc and its role in ischemic cardiovascular diseases. Basic Res Cardiol 2019; 114:29. [PMID: 31165272 DOI: 10.1007/s00395-019-0738-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 05/29/2019] [Indexed: 12/16/2022]
Abstract
Oxidative stress caused by an imbalance in the formation and removal of reactive oxygen species (ROS) plays an important role in the development of several cardiovascular diseases. ROS originate from various cellular origins; however, the highest amount of ROS is produced by mitochondria. One of the proteins contributing to mitochondrial ROS formation is the adaptor protein p66shc, which upon cellular stresses translocates from the cytosol to the mitochondria. In the present review, we focus on the role of p66shc in longevity, in the development of cardiovascular diseases including diabetes, atherosclerosis and its risk factors, myocardial ischemia/reperfusion injury and the protection from it by ischemic preconditioning. Also, the contribution of p66shc towards cerebral pathologies and the potential of the protein as a therapeutic target for the treatment of the aforementioned diseases are discussed.
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Affiliation(s)
- Kerstin Boengler
- Institut für Physiologie, Justus-Liebig Universität Gießen, Aulweg 129, 35392, Giessen, Germany
| | - Julia Bornbaum
- Institut für Physiologie, Justus-Liebig Universität Gießen, Aulweg 129, 35392, Giessen, Germany
| | - Klaus-Dieter Schlüter
- Institut für Physiologie, Justus-Liebig Universität Gießen, Aulweg 129, 35392, Giessen, Germany
| | - Rainer Schulz
- Institut für Physiologie, Justus-Liebig Universität Gießen, Aulweg 129, 35392, Giessen, Germany.
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29
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P66Shc and vascular endothelial function. Biosci Rep 2019; 39:BSR20182134. [PMID: 30918103 PMCID: PMC6488855 DOI: 10.1042/bsr20182134] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 03/21/2019] [Accepted: 03/26/2019] [Indexed: 12/23/2022] Open
Abstract
Dysfunctional endothelium is an early change in vasculature known to be associated with atherosclerosis. Among many regulators of vascular endothelial function, p66Shc has consistently been shown to mediate endothelial dysfunction. Over more than three decades of active research in the field of the physiological function of p66Shc, regulation of vascular endothelial functions has emerged as one of the most robust effects in a broad range of pathological conditions including hyperlipidemia, diabetes, and aging. A significant understanding has been developed with respect to the molecular signaling regulating the oxidative function of p66Shc in endothelial cells and its targets and regulators. In addition, novel regulatory modifications of p66Shc controlling its oxidative function, subcellular distribution, and stability have also been reported. This review will focus on summarizing the molecular signaling regulating the oxidative function of p66Shc and its role in vascular endothelium.
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30
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Modulation of Obesity and Insulin Resistance by the Redox Enzyme and Adaptor Protein p66 Shc. Int J Mol Sci 2019; 20:ijms20040985. [PMID: 30813483 PMCID: PMC6412263 DOI: 10.3390/ijms20040985] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/15/2019] [Accepted: 02/21/2019] [Indexed: 12/27/2022] Open
Abstract
Initially reported as a longevity-related protein, the 66 kDa isoform of the mammalian Shc1 locus has been implicated in several metabolic pathways, being able to act both as an adaptor protein and as a redox enzyme capable of generating reactive oxygen species (ROS) when it localizes to the mitochondrion. Ablation of p66Shc has been shown to be protective against obesity and the insurgence of insulin resistance, but not all the studies available in the literature agree on these points. This review will focus in particular on the role of p66Shc in the modulation of glucose homeostasis, obesity, body temperature, and respiration/energy expenditure. In view of the obesity and diabetes epidemic, p66Shc may represent a promising therapeutic target with enormous implications for human health.
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31
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Kalpage HA, Bazylianska V, Recanati MA, Fite A, Liu J, Wan J, Mantena N, Malek MH, Podgorski I, Heath EI, Vaishnav A, Edwards BF, Grossman LI, Sanderson TH, Lee I, Hüttemann M. Tissue-specific regulation of cytochrome c by post-translational modifications: respiration, the mitochondrial membrane potential, ROS, and apoptosis. FASEB J 2019; 33:1540-1553. [PMID: 30222078 PMCID: PMC6338631 DOI: 10.1096/fj.201801417r] [Citation(s) in RCA: 142] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 08/14/2018] [Indexed: 02/02/2023]
Abstract
Cytochrome c (Cyt c) plays a vital role in the mitochondrial electron transport chain (ETC). In addition, it is a key regulator of apoptosis. Cyt c has multiple other functions including ROS production and scavenging, cardiolipin peroxidation, and mitochondrial protein import. Cyt c is tightly regulated by allosteric mechanisms, tissue-specific isoforms, and post-translational modifications (PTMs). Distinct residues of Cyt c are modified by PTMs, primarily phosphorylations, in a highly tissue-specific manner. These modifications downregulate mitochondrial ETC flux and adjust the mitochondrial membrane potential (ΔΨm), to minimize reactive oxygen species (ROS) production under normal conditions. In pathologic and acute stress conditions, such as ischemia-reperfusion, phosphorylations are lost, leading to maximum ETC flux, ΔΨm hyperpolarization, excessive ROS generation, and the release of Cyt c. It is also the dephosphorylated form of the protein that leads to maximum caspase activation. We discuss the complex regulation of Cyt c and propose that it is a central regulatory step of the mammalian ETC that can be rate limiting in normal conditions. This regulation is important because it maintains optimal intermediate ΔΨm, limiting ROS generation. We examine the role of Cyt c PTMs, including phosphorylation, acetylation, methylation, nitration, nitrosylation, and sulfoxidation and consider their potential biological significance by evaluating their stoichiometry.-Kalpage, H. A., Bazylianska, V., Recanati, M. A., Fite, A., Liu, J., Wan, J., Mantena, N., Malek, M. H., Podgorski, I., Heath, E. I., Vaishnav, A., Edwards, B. F., Grossman, L. I., Sanderson, T. H., Lee, I., Hüttemann, M. Tissue-specific regulation of cytochrome c by post-translational modifications: respiration, the mitochondrial membrane potential, ROS, and apoptosis.
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Affiliation(s)
- Hasini A. Kalpage
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Viktoriia Bazylianska
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Maurice A. Recanati
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Alemu Fite
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Jenney Liu
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Junmei Wan
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Nikhil Mantena
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Moh H. Malek
- Department of Health Care Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, Michigan, USA
- Cardiovascular Research Institute, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Izabela Podgorski
- Department of Pharmacology, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Elizabeth I. Heath
- Department of Oncology, Karmanos Cancer Institute, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Asmita Vaishnav
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Brian F. Edwards
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Lawrence I. Grossman
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Thomas H. Sanderson
- Cardiovascular Research Institute, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
- Department of Emergency Medicine, University of Michigan Medical School, University of Michigan, Ann Arbor, Michigan, USA
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, University of Michigan, Ann Arbor, Michigan, USA
| | - Icksoo Lee
- College of Medicine, Dankook University, Cheonan-si, Chungcheongnam-do, South Korea
| | - Maik Hüttemann
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
- Cardiovascular Research Institute, Wayne State University School of Medicine, Wayne State University, Detroit, Michigan, USA
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32
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Zhang T, Zhao X, Hai R, Li R, Zhang W, Zhang J. p66Shc is associated with hydrogen peroxide-induced oxidative stress in preimplantation sheep embryos. Mol Reprod Dev 2019; 86:342-350. [PMID: 30636355 DOI: 10.1002/mrd.23110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 01/08/2019] [Indexed: 01/14/2023]
Abstract
The low efficiency of in vitro embryo production is associated with oxidative stress induced by suboptimal culture conditions. p66Shc is a 66-kDa protein of the ShcA (Src homologous-collagen homolog) adaptor protein family, which is involved in signaling pathways involved in oxidative stress regulation, apoptosis induction, and aging. However, the functional role of p66Shc during the preimplantation development of sheep embryos is not understood. Our results showed that early-cleavage (≤28 hr) embryos had a higher developmental potential than late-cleavage (>28 hr) embryos. The poor quality of these late-cleavage embryos was associated with increased the transcripts and protein of p66Shc and decreased mitochondrial activity. In addition, exogenous hydrogen peroxide-induced oxidative stress significantly increased p66Shc protein abundance and suppressed embryonic development, which was ameliorated by antioxidant treatment. Notably, oxidative stress induced the nuclear localization of p66Shc and phosphorylated (Ser-36) p66Shc. Collectively, these observations suggest that p66Shc may be playing an important role in the regulation of oxidative stress during the preimplantation development of sheep embryos.
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Affiliation(s)
- Tong Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China.,Inner Mongolia Autonomous Region Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science,Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China.,Department of Basic Medicine, School of Medicine, Shanxi Datong University, Datong, Shanxi, China
| | - Xiaofang Zhao
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China.,Department of Basic Medicine, School of Medicine, Shanxi Datong University, Datong, Shanxi, China
| | - Rihan Hai
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China.,Inner Mongolia Autonomous Region Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science,Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
| | - Ruilan Li
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China.,Inner Mongolia Autonomous Region Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science,Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China.,Department of Basic Medicine, School of Medicine, Shanxi Datong University, Datong, Shanxi, China
| | - Wenguang Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China.,Inner Mongolia Autonomous Region Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science,Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
| | - Jiaxin Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China.,Inner Mongolia Autonomous Region Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science,Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
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33
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Edwards NA, Watson AJ, Betts DH. Knockdown of p66Shc Alters Lineage-Associated Transcription Factor Expression in Mouse Blastocysts. Stem Cells Dev 2018; 27:1479-1493. [PMID: 30091687 PMCID: PMC6209429 DOI: 10.1089/scd.2018.0131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 08/08/2018] [Indexed: 11/12/2022] Open
Abstract
The p66Shc adaptor protein regulates apoptosis and senescence during early mammalian development. However, p66Shc expression during mouse preimplantation development is upregulated at the blastocyst stage. Our objective was to determine the biological function of p66Shc during mouse blastocyst development. In this study, we demonstrate that a reduced p66Shc transcript abundance following its short interfering RNA (siRNA)-mediated knockdown alters the spatiotemporal expression of cell lineage-associated transcription factors in the inner cell mass (ICM) of the mouse blastocyst. P66Shc knockdown blastocysts restrict OCT3/4 earlier to the inner cells of the early blastocyst and have ICMs containing significantly higher OCT3/4 levels, more GATA4-positive cells, and fewer NANOG-positive cells. P66Shc knockdown blastocysts also show a significantly reduced ability to form ICM-derived outgrowths when explanted in vitro. The increase in cells expressing primitive endoderm markers may be due to increased ERK1/2 activity, as it is reversed by ERK1/2 inhibition. These results suggest that p66Shc may regulate the relative abundance and timing of lineage-associated transcription factor expression in the blastocyst ICM.
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Affiliation(s)
- Nicole A. Edwards
- Department of Physiology and Pharmacology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Canada
| | - Andrew J. Watson
- Department of Physiology and Pharmacology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Canada
- Department of Obstetrics and Gynecology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Canada
- The Children's Health Research Institute (CHRI), Lawson Health Research Institute, London, Canada
| | - Dean H. Betts
- Department of Physiology and Pharmacology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Canada
- Department of Obstetrics and Gynecology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Canada
- The Children's Health Research Institute (CHRI), Lawson Health Research Institute, London, Canada
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34
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Arany I, Fülöp T, Dixit M. Chronic Nicotine Exposure Reduces Antioxidant Function of Simvastatin in Renal Proximal Tubule Cells. In Vivo 2018; 32:1033-1037. [PMID: 30150424 DOI: 10.21873/invivo.11343] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/04/2018] [Accepted: 06/08/2018] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM We have previously reported that simvastatin exhibits antioxidant properties via extracellular signal-regulated kinase (ERK)/cAMP-response element binding (CREB) protein-dependent induction of heme oxygenase-1 (HO1) and chronic nicotine exposure inhibits ERK/CREB signaling in renal proximal tubule cells (through p66shc). Herein, whether nicotine dampens simvastatin-dependent HO1 induction was determined. MATERIALS AND METHODS Renal proximal tubule (NRK52E) cells were pre-treated with 200 μM nicotine for 24 h followed by 10 μM simvastatin. Promoter activity of HO1 and manganese superoxide dismutase (MnSOD) and activation of CREB and ERK (via ELK1) were determined in luciferase reporter assays. CREB and p66shc were modulated via genetic means. RESULTS Nicotine suppressed simvastatin-dependent activation of HO1 and MnSOD promoters and activity of CREB and ELK1 via p66shc. Overexpression of CREB or knockdown of p66shc restored simvastatin-dependent induction of HO1 and MnSOD in the presence of nicotine. CONCLUSION Antioxidant efficiency of simvastatin might be significantly lessened in smokers/E-cigarette users.
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Affiliation(s)
- Istvan Arany
- Division of Pediatric Nephrology, Department of Pediatrics, University of Mississippi Medical Center, Jackson, MS, U.S.A.
| | - Tibor Fülöp
- Division of Nephrology, Department of Medicine, Medical University of South Carolina, Charleston, SC, U.S.A.,Medical Services, Ralph H. Johnson VA Medical Center, Charleston, SC, U.S.A
| | - Mehul Dixit
- Division of Pediatric Nephrology, Department of Pediatrics, University of Mississippi Medical Center, Jackson, MS, U.S.A
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Abstract
Insulin-like growth factors (IGFs) bind specifically to the IGF1 receptor on the cell surface of targeted tissues. Ligand binding to the α subunit of the receptor leads to a conformational change in the β subunit, resulting in the activation of receptor tyrosine kinase activity. Activated receptor phosphorylates several substrates, including insulin receptor substrates (IRSs) and Src homology collagen (SHC). Phosphotyrosine residues in these substrates are recognized by certain Src homology 2 (SH2) domain-containing signaling molecules. These include, for example, an 85 kDa regulatory subunit (p85) of phosphatidylinositol 3-kinase (PI 3-kinase), growth factor receptor-bound 2 (GRB2) and SH2-containing protein tyrosine phosphatase 2 (SHP2/Syp). These bindings lead to the activation of downstream signaling pathways, PI 3-kinase pathway and Ras-mitogen-activated protein kinase (MAP kinase) pathway. Activation of these signaling pathways is known to be required for the induction of various bioactivities of IGFs, including cell proliferation, cell differentiation and cell survival. In this review, the well-established IGF1 receptor signaling pathways required for the induction of various bioactivities of IGFs are introduced. In addition, we will discuss how IGF signals are modulated by the other extracellular stimuli or by themselves based on our studies.
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Affiliation(s)
- Fumihiko Hakuno
- Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Shin-Ichiro Takahashi
- Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
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36
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Janikiewicz J, Szymański J, Malinska D, Patalas-Krawczyk P, Michalska B, Duszyński J, Giorgi C, Bonora M, Dobrzyn A, Wieckowski MR. Mitochondria-associated membranes in aging and senescence: structure, function, and dynamics. Cell Death Dis 2018; 9:332. [PMID: 29491385 PMCID: PMC5832430 DOI: 10.1038/s41419-017-0105-5] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/26/2017] [Accepted: 10/27/2017] [Indexed: 12/16/2022]
Abstract
Sites of close contact between mitochondria and the endoplasmic reticulum (ER) are known as mitochondria-associated membranes (MAM) or mitochondria-ER contacts (MERCs), and play an important role in both cell physiology and pathology. A growing body of evidence indicates that changes observed in the molecular composition of MAM and in the number of MERCs predisposes MAM to be considered a dynamic structure. Its involvement in processes such as lipid biosynthesis and trafficking, calcium homeostasis, reactive oxygen species production, and autophagy has been experimentally confirmed. Recently, MAM have also been studied in the context of different pathologies, including Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, type 2 diabetes mellitus and GM1-gangliosidosis. An underappreciated amount of data links MAM with aging or senescence processes. In the present review, we summarize the current knowledge of basic MAM biology, composition and action, and discuss the potential connections supporting the idea that MAM are significant players in longevity.
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Affiliation(s)
- Justyna Janikiewicz
- Department of Biochemistry, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - Jędrzej Szymański
- Department of Biochemistry, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - Dominika Malinska
- Department of Biochemistry, Nencki Institute of Experimental Biology, Warsaw, Poland
| | | | - Bernadeta Michalska
- Department of Biochemistry, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - Jerzy Duszyński
- Department of Biochemistry, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - Carlotta Giorgi
- Department of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology, Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Massimo Bonora
- Departments of Cell Biology and Gottesman Institute for Stem Cell & Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Agnieszka Dobrzyn
- Department of Biochemistry, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - Mariusz R Wieckowski
- Department of Biochemistry, Nencki Institute of Experimental Biology, Warsaw, Poland.
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37
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Wang XN, Zhang CJ, Diao HL, Zhang Y. Protective Effects of Curcumin against Sodium Arsenite-induced Ovarian Oxidative Injury in a Mouse Model. Chin Med J (Engl) 2018; 130:1026-1032. [PMID: 28469096 PMCID: PMC5421171 DOI: 10.4103/0366-6999.204927] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Excessive reactive oxygen species (ROS) may lead to a number of reproductive diseases such as polycystic ovary syndrome. This study aimed to establish an animal model of ovarian oxidative stress and to assess the protective effect of curcumin against oxidative injury. METHODS Ovarian oxidative stress was induced in female Kunming mice (n = 40) with intraperitoneal injection of 8 mg/kg sodium arsenite (As) once every other day for 16 days; meanwhile, they were, respectively, treated by intragastric administration of 0, 100, 150, or 200 mg/kg (n = 10/group) curcumin once per day for 21 days. Ten normal mice were used as control. Then, the mice were injected intraperitoneally with BrdU and sacrificed; the right ovaries were collected for hematoxylin and eosin (HE) staining and BrdU immunohistochemistry, and the left ovaries for enzyme-linked immunosorbent assay (ELISA) and Western blotting analyses. RESULTS The ELISA results showed that ROS (11.74 ± 0.65 IU/mg in 8 mg/kg AS + 0 mg/kg curcumin group vs. 10.71 ± 0.91 IU/mg in control group, P= 0.021) and malondialdehyde (MDA) (0.32 ± 0.02 nmol/g in 8 mg/kg AS + 0 mg/kg curcumin group vs. 0.27 ± 0.02 nmol/g in control group, P= 0.048) increased while superoxide dismutase (SOD) (3.96 ± 0.36 U/mg in 8 mg/kg AS + 0 mg/kg curcumin group vs. 4.51 ± 0.70 U/mg in control group, P= 0.012) and glutathione peroxidase (17.36 ± 1.63 U/g in 8 mg/kg AS + 0 mg/kg curcumin group vs. 18.92 ± 1.80 U/g in control group, P= 0.045) decreased in the ovary after injection of As, indicating successful modeling of oxidative stress. Curcumin treatment could considerably increase SOD (4.57 ± 0.68, 4.49 ± 0.27, and 4.56 ± 0.25 U/mg in 100 mg/kg, 150 mg/kg, and 200 mg/kg curcumin group, respectively, allP < 0.05) while significantly reduce ROS (10.64 ± 1.38, 10.73 ± 0.71, and 10.67 ± 1.38 IU/mg in 100 mg/kg, 150 mg/kg, and 200 mg/kg curcumin group, respectively, allP < 0.05) and MDA (0.28 ± 0.02, 0.25 ± 0.03, and 0.27 ± 0.04 nmol/g in 100 mg/kg, 150 mg/kg, and 200 mg/kg curcumin group, respectively; bothP < 0.05) in the ovary. HE staining and BrdU immunohistochemistry of the ovarian tissues indicated the increased amount of atretic follicles (5.67 ± 0.81, 5.84 ± 0.98, and 5.72 ± 0.84 in 100 mg/kg, 150 mg/kg, and 200 mg/kg curcumin group, respectively, all P < 0.05), and the inhibited proliferation of granular cells under oxidative stress would be reversed by curcumin. Furthermore, the Western blotting of ovarian tissues showed that the p66Shc expression upregulated under oxidative stress would be lowered by curcumin. CONCLUSION Curcumin could alleviate arsenic-induced ovarian oxidative injury to a certain extent.
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Affiliation(s)
- Xiao-Ning Wang
- Reproductive Medical Center of Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Chang-Jun Zhang
- Reproductive Medical Center of Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Hong-Lu Diao
- Reproductive Medical Center of Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Ying Zhang
- Reproductive Medical Center of Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, China
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38
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Cattaneo F, Patrussi L, Capitani N, Frezzato F, D'Elios MM, Trentin L, Semenzato G, Baldari CT. Expression of the p66Shc protein adaptor is regulated by the activator of transcription STAT4 in normal and chronic lymphocytic leukemia B cells. Oncotarget 2018; 7:57086-57098. [PMID: 27494881 PMCID: PMC5302975 DOI: 10.18632/oncotarget.10977] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 07/19/2016] [Indexed: 01/23/2023] Open
Abstract
p66Shc attenuates mitogenic, prosurvival and chemotactic signaling and promotes apoptosis in lymphocytes. Consistently, p66Shc deficiency contributes to the survival and trafficking abnormalities of chronic lymphocytic leukemia (CLL) B cells. The mechanism of p66shc silencing in CLL B cells is methylation-independent, at variance with other cancer cell types. Here we identify STAT4 as a novel transcriptional regulator of p66Shc in B cells. Chromatin immunoprecipitation and reporter gene assays showed that STAT4 binds to and activates the p66shc promoter. Silencing or overexpression of STAT4 resulted in a co-modulation of p66Shc. IL-12-dependent STAT4 activation caused a coordinate increase in STAT4 and p66Shc expression, which correlated with enhanced B cell apoptosis. Treatment with the STAT4 inhibitor lisofylline reverted partly this effect, suggesting that STAT4 phosphorylation is not essential for but enhances p66shc transcription. Additionally, we demonstrate that CLL B lymphocytes have a STAT4 expression defect which partly accounts for their p66Shc deficiency, as supported by reconstitution experiments. Finally, we show that p66Shc participates in a positive feedback loop to promote STAT4 expression. These results provide new insights into the mechanism of p66Shc expression in B cells and its defect in CLL, identifying the STAT4/IL-12 pathway as a potential therapeutic target in this neoplasia.
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Affiliation(s)
| | - Laura Patrussi
- Department of Life Sciences, University of Siena, Siena, Italy
| | - Nagaja Capitani
- Department of Life Sciences, University of Siena, Siena, Italy.,Department of Experimental and Clinical Medicine, University of Florence, Firenze, Italy
| | | | - Mario Milco D'Elios
- Department of Experimental and Clinical Medicine, University of Florence, Firenze, Italy
| | - Livio Trentin
- Department of Medicine, University of Padua, Padova, Italy
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39
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Abstract
Aberrant signal transduction downstream of the Ras GTPase has a well-established role in tumorigenesis. Mutations that result in hyperactivation of Ras are responsible for a third of all human cancers. Hence, small molecule inhibitors of the Ras signal transduction cascade have been under intense focus as potential cancer treatments. In both invertebrate and mammalian models, emerging evidence has also implicated components of the Ras signaling pathway in aging and metabolic regulation. Here, I review the current evidence for Ras signaling in these newly discovered roles highlighting the interactions between the Ras pathway and other longevity assurance mechanisms. Defining the role of Ras signaling in maintaining age-related health may have important implications for the development of interventions that could not only increase lifespan but also delay the onset and/or progression of age-related functional decline.
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Affiliation(s)
- Cathy Slack
- School of Life and Health Sciences, Aston University, Aston Triangle, Birmingham, UK
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40
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Cai X, Hu Y, Tang H, Hu H, Pang L, Xing J, Liu Z, Luo Y, Jiang B, Liu T, Gorospe M, Chen C, Wang W. RNA methyltransferase NSUN2 promotes stress-induced HUVEC senescence. Oncotarget 2017; 7:19099-110. [PMID: 26992231 PMCID: PMC4991368 DOI: 10.18632/oncotarget.8087] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 02/23/2016] [Indexed: 12/05/2022] Open
Abstract
The tRNA methyltransferase NSUN2 delays replicative senescence by regulating the translation of CDK1 and CDKN1B mRNAs. However, whether NSUN2 influences premature cellular senescence remains untested. Here we show that NSUN2 methylates SHC mRNA in vitro and in cells, thereby enhancing the translation of the three SHC proteins, p66SHC, p52SHC, and p46SHC. Our results further show that the elevation of SHC expression by NSUN2-mediated mRNA methylation increased the levels of ROS, activated p38MAPK, thereby accelerating oxidative stress- and high-glucose-induced senescence of human vascular endothelial cells (HUVEC). Our findings highlight the critical impact of NSUN2-mediated mRNA methylation in promoting premature senescence.
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Affiliation(s)
- Xiaoyu Cai
- Department of Biochemistry and Molecular Biology, Peking University Health Science Center, Beijing, P.R. China
| | - Yuanyuan Hu
- Department of Biochemistry and Molecular Biology, Peking University Health Science Center, Beijing, P.R. China
| | - Hao Tang
- Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing, P.R. China
| | - Han Hu
- Department of Biochemistry and Molecular Biology, Peking University Health Science Center, Beijing, P.R. China
| | - Lijun Pang
- Department of Biochemistry and Molecular Biology, Peking University Health Science Center, Beijing, P.R. China
| | - Junyue Xing
- Department of Biochemistry and Molecular Biology, Peking University Health Science Center, Beijing, P.R. China
| | - Zhenyun Liu
- Department of Biochemistry and Molecular Biology, Peking University Health Science Center, Beijing, P.R. China
| | - Yuhong Luo
- Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing, P.R. China
| | - Bin Jiang
- Department of Biochemistry and Molecular Biology, Peking University Health Science Center, Beijing, P.R. China
| | - Te Liu
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai, P.R. China
| | - Myriam Gorospe
- Laboratory of Genetics, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Chuan Chen
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai, P.R. China
| | - Wengong Wang
- Department of Biochemistry and Molecular Biology, Peking University Health Science Center, Beijing, P.R. China
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41
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Wright KD, Staruschenko A, Sorokin A. Role of adaptor protein p66Shc in renal pathologies. Am J Physiol Renal Physiol 2017; 314:F143-F153. [PMID: 28978535 DOI: 10.1152/ajprenal.00414.2017] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
p66Shc is one of the three adaptor proteins encoded by the Shc1 gene, which are expressed in many organs, including the kidney. Recent studies shed new light on several key questions concerning the signaling mechanisms mediated by p66Shc. The central goal of this review article is to summarize recent findings on p66Shc and the role it plays in kidney physiology and pathology. This article provides a review of the various mechanisms whereby p66Shc has been shown to function within the kidney through a wide range of actions. The mitochondrial and cytoplasmic signaling of p66Shc, as it relates to production of reactive oxygen species (ROS) and renal pathologies, is further discussed.
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Affiliation(s)
- Kevin D Wright
- Cardiovascular Center, Medical College of Wisconsin , Milwaukee, Wisconsin.,Department of Medicine, Medical College of Wisconsin , Milwaukee, Wisconsin
| | - Alexander Staruschenko
- Cardiovascular Center, Medical College of Wisconsin , Milwaukee, Wisconsin.,Department of Physiology, Medical College of Wisconsin , Milwaukee, Wisconsin
| | - Andrey Sorokin
- Cardiovascular Center, Medical College of Wisconsin , Milwaukee, Wisconsin.,Department of Medicine, Medical College of Wisconsin , Milwaukee, Wisconsin
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42
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Wills MKB, Lau HR, Jones N. The ShcD phosphotyrosine adaptor subverts canonical EGF receptor trafficking. J Cell Sci 2017; 130:2808-2820. [PMID: 28724758 DOI: 10.1242/jcs.198903] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 07/09/2017] [Indexed: 12/15/2022] Open
Abstract
Shc family signalling adaptors connect activated transmembrane receptors to proximal effectors, and most also contain a sequence involved in clathrin-mediated receptor endocytosis. Notably, this AP2 adaptin-binding motif (AD) is absent from the ShcD (also known as Shc4) homolog, which also uniquely promotes ligand-independent phosphorylation of the epidermal growth factor receptor (EGFR). We now report that cultured cells expressing ShcD exhibit reduced EGF uptake, commensurate with a decrease in EGFR surface presentation. Under basal conditions, ShcD colocalises with the EGFR and facilitates its phosphorylation, ubiquitylation and accumulation in juxtanuclear vesicles identified as Rab11-positive endocytic recycling compartments. Accordingly, ShcD also functions as a constitutive binding partner for the E3 ubiquitin ligase Cbl. EGFR phosphorylation and focal accumulation likewise occur upon ShcD co-expression in U87 glioma cells. Loss of ShcD phosphotyrosine-binding function or insertion of the ShcA AD sequence each restore ligand acquisition through distinct mechanisms. The AD region also contains a nuclear export signal, indicating its multifunctionality. Overall, ShcD appears to possess several molecular permutations that actively govern the EGFR, which may have implications in development and disease.
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Affiliation(s)
- Melanie K B Wills
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Hayley R Lau
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Nina Jones
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON, N1G 2W1, Canada
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43
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Satthenapalli VR, Lamberts RR, Katare RG. Concise Review: Challenges in Regenerating the Diabetic Heart: A Comprehensive Review. Stem Cells 2017. [PMID: 28639375 DOI: 10.1002/stem.2661] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Stem cell therapy is one of the promising regenerative strategies developed to improve cardiac function in patients with ischemic heart diseases (IHD). However, this approach is limited in IHD patients with diabetes due to a progressive decline in the regenerative capacity of stem cells. This decline is mainly attributed to the metabolic memory incurred by diabetes on stem cell niche and their systemic cues. Understanding the molecular pathways involved in the diabetes-induced deterioration of stem cell function will be critical for developing new cardiac regeneration therapies. In this review, we first discuss the most common molecular alterations occurring in the diabetic stem cells/progenitor cells. Next, we highlight the key signaling pathways that can be dysregulated in a diabetic environment and impair the mobilization of stem/progenitor cells, which is essential for the transplanted/endogenous stem cells to reach the site of injury. We further discuss the possible methods of preconditioning the diabetic cardiac progenitor cell (CPC) with an aim to enrich the availability of efficient stem cells to regenerate the diseased diabetic heart. Finally, we propose new modalities for enriching the diabetic CPC through genetic or tissue engineering that would aid in developing autologous therapeutic strategies, improving the proliferative, angiogenic, and cardiogenic properties of diabetic stem/progenitor cells. Stem Cells 2017;35:2009-2026.
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Affiliation(s)
- Venkata R Satthenapalli
- Department of Physiology, School of Biomedical Sciences, HeartOtago, University of Otago, Dunedin, New Zealand
| | - Regis R Lamberts
- Department of Physiology, School of Biomedical Sciences, HeartOtago, University of Otago, Dunedin, New Zealand
| | - Rajesh G Katare
- Department of Physiology, School of Biomedical Sciences, HeartOtago, University of Otago, Dunedin, New Zealand
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44
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Di Lisa F, Giorgio M, Ferdinandy P, Schulz R. New aspects of p66Shc in ischaemia reperfusion injury and other cardiovascular diseases. Br J Pharmacol 2017; 174:1690-1703. [PMID: 26990284 PMCID: PMC5446581 DOI: 10.1111/bph.13478] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 02/29/2016] [Accepted: 03/09/2016] [Indexed: 12/13/2022] Open
Abstract
Although reactive oxygen species (ROS) act as crucial factors in the onset and progression of a wide array of diseases, they are also involved in numerous signalling pathways related to cell metabolism, growth and survival. ROS are produced at various cellular sites, and it is generally agreed that mitochondria generate the largest amount, especially those in cardiomyocytes. However, the identification of the most relevant sites within mitochondria, the interaction among the various sources, and the events responsible for the increase in ROS formation under pathological conditions are still highly debated, and far from being clarified. Here, we review the information linking the adaptor protein p66Shc with cardiac injury induced by ischaemia and reperfusion (I/R), including the contribution of risk factors, such as metabolic syndrome and ageing. In response to several stimuli, p66Shc migrates into mitochondria where it catalyses electron transfer from cytochrome c to oxygen resulting in hydrogen peroxide formation. Deletion of p66Shc has been shown to reduce I/R injury as well as vascular abnormalities associated with diabetes and ageing. However, p66Shc-induced ROS formation is also involved in insulin signalling and might contribute to self-endogenous defenses against mild I/R injury. In addition to its role in physiological and pathological conditions, we discuss compounds and conditions that can modulate the expression and activity of p66Shc. LINKED ARTICLES This article is part of a themed section on Redox Biology and Oxidative Stress in Health and Disease. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.12/issuetoc.
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Affiliation(s)
- Fabio Di Lisa
- Department of Biomedical Sciences and CNR Neuroscience InstituteUniversity of PadovaPadovaItaly
| | - Marco Giorgio
- Department of Experimental OncologyInstitute of OncologyMilanItaly
| | - Peter Ferdinandy
- Department of Pharmacology and PharmacotherapySemmelweis UniversityBudapestHungary
- Pharmahungary GroupSzegedHungary
| | - Rainer Schulz
- Institut für PhysiologieJustus‐Liebig Universität GiessenGiessenGermany
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Inhibition of p66Shc-mediated mitochondrial apoptosis via targeting prolyl-isomerase Pin1 attenuates intestinal ischemia/reperfusion injury in rats. Clin Sci (Lond) 2017; 131:759-773. [PMID: 28232511 DOI: 10.1042/cs20160799] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 02/21/2017] [Accepted: 02/22/2017] [Indexed: 12/11/2022]
Abstract
Intestinal epithelial oxidative stress and apoptosis constitute key pathogenic mechanisms underlying intestinal ischemia/reperfusion (I/R) injury. We previously reported that the adaptor 66 kDa isoform of the adaptor molecule ShcA (p66Shc)-mediated pro-apoptotic pathway was activated after intestinal I/R. However, the upstream regulators of the p66Shc pathway involved in intestinal I/R remain to be fully identified. Here, we focused on the role of a prolyl-isomerase, peptidyl–prolyl cis–trans isomerase (Pin1), in the regulation of p66Shc activity during intestinal I/R. Intestinal I/R was induced in rats by superior mesenteric artery (SMA) occlusion. Juglone (Pin1 inhibitor) or vehicle was injected intraperitoneally before I/R challenge. Caco-2 cells were exposed to hypoxia/reoxygenation (H/R) in vitro to simulate an in vivo I/R model. We found that p66Shc was significantly up-regulated in the I/R intestine and that this up-regulation resulted in the accumulation of intestinal mitochondrial reactive oxygen species (ROS) and massive epithelial apoptosis. Moreover, intestinal I/R resulted in elevated protein expression and enzyme activity of Pin1 as well as increased interaction between Pin1 and p66Shc. This Pin1 activation was responsible for the translocation of p66Shc to the mitochondria during intestinal I/R, as Pin1 suppression by juglone or siRNA markedly blunted p66Shc mitochondrial translocation and the subsequent ROS generation and cellular apoptosis. Additionally, Pin1 inhibition alleviated gut damage and secondary lung injury, leading to improvement of survival after I/R. Collectively, our findings demonstrate for the first time that Pin1 inhibition protects against intestinal I/R injury, which could be partially attributed to the p66Shc-mediated mitochondrial apoptosis pathway. This may represent a novel prophylactic target for intestinal I/R injury.
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The Shc1 adaptor simultaneously balances Stat1 and Stat3 activity to promote breast cancer immune suppression. Nat Commun 2017; 8:14638. [PMID: 28276425 PMCID: PMC5347092 DOI: 10.1038/ncomms14638] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 01/18/2017] [Indexed: 02/07/2023] Open
Abstract
Tyrosine kinase signalling within cancer cells is central to the establishment of an immunosuppressive microenvironment. Although tyrosine kinase inhibitors act, in part, to augment adaptive immunity, the increased heterogeneity and functional redundancy of the tyrosine kinome is a hurdle to achieving durable responses to immunotherapies. We previously identified the Shc1 (ShcA) scaffold, a central regulator of tyrosine kinase signalling, as essential for promoting breast cancer immune suppression. Herein we show that the ShcA pathway simultaneously activates STAT3 immunosuppressive signals and impairs STAT1-driven immune surveillance in breast cancer cells. Impaired Y239/Y240-ShcA phosphorylation selectively reduces STAT3 activation in breast tumours, profoundly sensitizing them to immune checkpoint inhibitors and tumour vaccines. Finally, the ability of diminished tyrosine kinase signalling to initiate STAT1-driven immune surveillance can be overcome by compensatory STAT3 hyperactivation in breast tumours. Our data indicate that inhibition of pY239/240-ShcA-dependent STAT3 signalling may represent an attractive therapeutic strategy to sensitize breast tumours to multiple immunotherapies. Tyrosine kinase signalling in cancer cells promotes immune evasion. Here, the authors show that tyrosine kinases engage scaffold protein Shc1 to promote immunosuppression in breast cancer by simultaneously activating STAT3 immunosuppressive signals and impairing STAT1-driven anti-tumour immune responses.
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Abstract
Tissue cells continually monitor anchorage conditions by gauging the physical properties of their underlying matrix and surrounding environment. The Rho and Ras GTPases are essential components of these mechanosensory pathways. These molecular switches control both cytoskeletal as well as cell fate responses to anchorage conditions and are thus critical to our understanding of how cells respond to their physical environment and, by extension, how malignant cells gainsay these regulatory pathways. Recent studies indicate that 2 proteins produced by the SHC1 gene, thought for the most part to functionally oppose each other, collaborate in their ability to respond to mechanical force by initiating respective Rho and Ras signals. In this review, we focus on the coupling of Shc and GTPases in the cellular response to mechanical anchorage signals, with emphasis on its relevance for cancer.
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Affiliation(s)
- Lance S Terada
- a Department of Internal Medicine , Pulmonary and Critical Care, The University of Texas Southwestern Medical Center , Dallas , TX , USA
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48
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Wills MKB, Keyvani Chahi A, Lau HR, Tilak M, Guild BD, New LA, Lu P, Jacquet K, Meakin SO, Bisson N, Jones N. Signaling adaptor ShcD suppresses extracellular signal-regulated kinase (Erk) phosphorylation distal to the Ret and Trk neurotrophic receptors. J Biol Chem 2017; 292:5748-5759. [PMID: 28213521 DOI: 10.1074/jbc.m116.770511] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/06/2017] [Indexed: 11/06/2022] Open
Abstract
Proteins of the Src homology and collagen (Shc) family are typically involved in signal transduction events involving Ras/MAPK and PI3K/Akt pathways. In the nervous system, they function proximal to the neurotrophic factors that regulate cell survival, differentiation, and neuron-specific characteristics. The least characterized homolog, ShcD, is robustly expressed in the developing and mature nervous system, but its contributions to neural cell circuitry are largely uncharted. We now report that ShcD binds to active Ret, TrkA, and TrkB neurotrophic factor receptors predominantly via its phosphotyrosine-binding (PTB) domain. However, in contrast to the conventional Shc adaptors, ShcD suppresses distal phosphorylation of the Erk MAPK. Accordingly, genetic knock-out of mouse ShcD enhances Erk phosphorylation in the brain. In cultured cells, this capacity is tightly aligned to phosphorylation of ShcD CH1 region tyrosine motifs, which serve as docking platforms for signal transducers, such as Grb2. Erk suppression is relieved through independent mutagenesis of the PTB domain and the CH1 tyrosine residues, and successive substitution of these tyrosines breaks the interaction between ShcD and Grb2, thereby promoting TrkB-Grb2 association. Erk phosphorylation can also be restored in the presence of wild type ShcD through Grb2 overexpression. Conversely, mutation of the ShcD SH2 domain results in enhanced repression of Erk. Although the SH2 domain is a less common binding interface in Shc proteins, we demonstrate that it associates with the Ptpn11 (Shp2) phosphatase, which in turn regulates ShcD tyrosine phosphorylation. We therefore propose a model whereby ShcD competes with neurotrophic receptors for Grb2 binding and opposes activation of the MAPK cascade.
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Affiliation(s)
- Melanie K B Wills
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Ava Keyvani Chahi
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Hayley R Lau
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Manali Tilak
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Brianna D Guild
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Laura A New
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Peihua Lu
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Kévin Jacquet
- Cancer Research Centre, Quebec Network for Research on Protein Function, Engineering, and Applications (PROTEO) and Centre Hospitalier Universitaire de Québec Research Centre-Université Laval, Québec City, Québec G1R 2J6, Canada, and
| | - Susan O Meakin
- Department of Biochemistry, Western University, London, Ontario N6A 5B7, Canada
| | - Nicolas Bisson
- Cancer Research Centre, Quebec Network for Research on Protein Function, Engineering, and Applications (PROTEO) and Centre Hospitalier Universitaire de Québec Research Centre-Université Laval, Québec City, Québec G1R 2J6, Canada, and
| | - Nina Jones
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada,
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Sirtuin1-regulated lysine acetylation of p66Shc governs diabetes-induced vascular oxidative stress and endothelial dysfunction. Proc Natl Acad Sci U S A 2017; 114:1714-1719. [PMID: 28137876 DOI: 10.1073/pnas.1614112114] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The 66-kDa Src homology 2 domain-containing protein (p66Shc) is a master regulator of reactive oxygen species (ROS). It is expressed in many tissues where it contributes to organ dysfunction by promoting oxidative stress. In the vasculature, p66Shc-induced ROS engenders endothelial dysfunction. Here we show that p66Shc is a direct target of the Sirtuin1 lysine deacetylase (Sirt1), and Sirt1-regulated acetylation of p66Shc governs its capacity to induce ROS. Using diabetes as an oxidative stimulus, we demonstrate that p66Shc is acetylated under high glucose conditions and is deacetylated by Sirt1 on lysine 81. High glucose-stimulated lysine acetylation of p66Shc facilitates its phosphorylation on serine 36 and translocation to the mitochondria, where it promotes hydrogen peroxide production. Endothelium-specific transgenic and global knockin mice expressing p66Shc that is not acetylatable on lysine 81 are protected from diabetic oxidative stress and vascular endothelial dysfunction. These findings show that p66Shc is a target of Sirt1, uncover a unique Sirt1-regulated lysine acetylation-dependent mechanism that governs the oxidative function of p66Shc, and demonstrate the importance of p66Shc lysine acetylation in vascular oxidative stress and diabetic vascular pathophysiology.
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p66 Shc Couples Mechanical Signals to RhoA through Focal Adhesion Kinase-Dependent Recruitment of p115-RhoGEF and GEF-H1. Mol Cell Biol 2016; 36:2824-2837. [PMID: 27573018 DOI: 10.1128/mcb.00194-16] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 04/20/2016] [Accepted: 08/25/2016] [Indexed: 01/16/2023] Open
Abstract
Tissue cells respond to changes in tensional forces with proliferation or death through the control of RhoA. However, the response coupling mechanisms that link force with RhoA activation are poorly understood. We found that tension applied to fibronectin-coated microbeads caused recruitment of all three isoforms of the Shc adapter (p66Shc, p52Shc, and p46Shc) to adhesion complexes. The Shc PTB domain was necessary and sufficient for this recruitment, and screening studies revealed the direct interactions with the FERM domain of focal adhesion kinase (FAK) that were required for Shc translocation to adhesion complexes. The FAK/p66Shc complex specifically bound and activated the Rho guanyl exchange factors (GEFs) p115-RhoGEF and GEF-H1, leading to tension-induced RhoA activation. In contrast, the FAK/p52Shc complex bound SOS1 but not the Rho GEFs to mediate tension-induced Ras activation. Nuclear translocation and activation of the YAP/TAZ transcription factors on firm substrates required the FAK/p66Shc/Rho GEF complex, and both proliferation on firm substrates and anoikis in suspension required signaling through p66Shc and its associated Rho GEFs. These studies reveal the binary and exclusive assignment of p66Shc and p52Shc to tension-induced Rho or Ras signals, respectively, and suggest an integrated role for the two Shc isoforms in coordinating the cellular response to mechanical stimuli.
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