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Rossi S, Tatangelo V, Dichiara M, Butini S, Gemma S, Brogi S, Pasquini S, Cappello M, Vincenzi F, Varani K, Lopresti L, Malchiodi M, Carrara C, Gozzetti A, Bocchia M, Marotta G, Patrussi L, Carullo G, Baldari CT, Campiani G. A novel potent class I HDAC inhibitor reverses the STAT4/p66Shc apoptotic defect in B cells from chronic lymphocytic leukemia patients. Biomed Pharmacother 2024; 174:116537. [PMID: 38579402 DOI: 10.1016/j.biopha.2024.116537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/20/2024] [Accepted: 03/29/2024] [Indexed: 04/07/2024] Open
Abstract
Chronic Lymphocytic Leukemia (CLL) patients have a defective expression of the proapoptotic protein p66Shc and of its transcriptional factor STAT4, which evoke molecular abnormalities, impairing apoptosis and worsening disease prognosis and severity. p66Shc expression is epigenetically controlled and transcriptionally modulated by STAT4; epigenetic modifiers are deregulated in CLL cells and specific histone deacetylases (HDACs) like HDAC1, are overexpressed. Reactivation of STAT4/p66Shc expression may represent an attractive and challenging strategy to reverse CLL apoptosis defects. New selective class I HDAC inhibitors (HDACis, 6a-g) were developed with increased potency over existing agents and preferentially interfering with the CLL-relevant isoform HDAC1, to unveil the role of class I HDACs in the upregulation of STAT4 expression, which upregulates p66Shc expression and hence normalizes CLL cell apoptosis. 6c (chlopynostat) was identified as a potent HDAC1i with a superior profile over entinostat. 6c induces marked apoptosis of CLL cells compared with SAHA, which was associated with an upregulation of STAT4/p66Shc protein expression. The role of HDAC1, but not HDAC3, in the epigenetic upregulation of STAT4/p66Shc was demonstrated for the first time in CLL cells and was validated in siRNA-induced HDAC1/HDAC3 knock-down EBV-B cells. To sum up, HDAC1 inhibition is necessary to reactivate STAT4/p66Shc expression in patients with CLL. 6c is one of the most potent HDAC1is known to date and represents a novel pharmacological tool for reversing the impairment of the STAT4/p66Shc apoptotic machinery.
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MESH Headings
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Leukemia, Lymphocytic, Chronic, B-Cell/metabolism
- Apoptosis/drug effects
- Histone Deacetylase Inhibitors/pharmacology
- Src Homology 2 Domain-Containing, Transforming Protein 1/metabolism
- Src Homology 2 Domain-Containing, Transforming Protein 1/genetics
- STAT4 Transcription Factor/metabolism
- B-Lymphocytes/drug effects
- B-Lymphocytes/metabolism
- Histone Deacetylase 1/metabolism
- Histone Deacetylase 1/antagonists & inhibitors
- Benzamides/pharmacology
- Male
- Aged
- Female
- Middle Aged
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Affiliation(s)
- Sara Rossi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, Siena 53100, Italy
| | - Vanessa Tatangelo
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, Siena 53100, Italy
| | - Maria Dichiara
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, Siena 53100, Italy
| | - Stefania Butini
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, Siena 53100, Italy
| | - Sandra Gemma
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, Siena 53100, Italy
| | - Simone Brogi
- Department of Pharmacy, University of Pisa, Via Bonanno, Pisa 56126, Italy
| | - Silvia Pasquini
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Borsari 46, Ferrara 44121, Italy
| | - Martina Cappello
- Department of Translational Medicine, University of Ferrara, Via Borsari 46, Ferrara 44121, Italy
| | - Fabrizio Vincenzi
- Department of Translational Medicine, University of Ferrara, Via Borsari 46, Ferrara 44121, Italy
| | - Katia Varani
- Department of Translational Medicine, University of Ferrara, Via Borsari 46, Ferrara 44121, Italy
| | - Ludovica Lopresti
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, Siena 53100, Italy
| | - Margherita Malchiodi
- Haematology Unit, Department of Medical Sciences, Surgery and Neuroscience, University of Siena, Policlinico "Santa Maria alle Scotte", Viale Bracci, Siena 53100, Italy
| | - Chiara Carrara
- Haematology Unit, Department of Medical Sciences, Surgery and Neuroscience, University of Siena, Policlinico "Santa Maria alle Scotte", Viale Bracci, Siena 53100, Italy
| | - Alessandro Gozzetti
- Haematology Unit, Department of Medical Sciences, Surgery and Neuroscience, University of Siena, Policlinico "Santa Maria alle Scotte", Viale Bracci, Siena 53100, Italy
| | - Monica Bocchia
- Haematology Unit, Department of Medical Sciences, Surgery and Neuroscience, University of Siena, Policlinico "Santa Maria alle Scotte", Viale Bracci, Siena 53100, Italy
| | - Giuseppe Marotta
- Stem Cell Transplant and Cellular Therapy Unit, University Hospital, Policlinico "Santa Maria alle Scotte", Viale Bracci, Siena 53100, Italy
| | - Laura Patrussi
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, Siena 53100, Italy.
| | - Gabriele Carullo
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, Siena 53100, Italy.
| | - Cosima T Baldari
- Department of Life Sciences, University of Siena, Via Aldo Moro 2, Siena 53100, Italy
| | - Giuseppe Campiani
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, Siena 53100, Italy; Bioinformatics Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan 81746-7346, Iran
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2
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Ji L, Zhang X, Chen Z, Wang Y, Zhu H, Nai Y, Huang Y, Lai R, Zhong Y, Yang X, Wang Q, Hu H, Wang L. High glucose-induced p66Shc mitochondrial translocation regulates autophagy initiation and autophagosome formation in syncytiotrophoblast and extravillous trophoblast. Cell Commun Signal 2024; 22:234. [PMID: 38643181 PMCID: PMC11031965 DOI: 10.1186/s12964-024-01621-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 04/17/2024] [Indexed: 04/22/2024] Open
Abstract
BACKGROUND p66Shc, as a redox enzyme, regulates reactive oxygen species (ROS) production in mitochondria and autophagy. However, the mechanisms by which p66Shc affects autophagosome formation are not fully understood. METHODS p66Shc expression and its location in the trophoblast cells were detected in vivo and in vitro. Small hairpin RNAs or CRISPR/Cas9, RNA sequencing, and confocal laser scanning microscope were used to clarify p66Shc's role in regulating autophagic flux and STING activation. In addition, p66Shc affects mitochondrial-associated endoplasmic reticulum membranes (MAMs) formation were observed by transmission electron microscopy (TEM). Mitochondrial function was evaluated by detected cytoplastic mitochondrial DNA (mtDNA) and mitochondrial membrane potential (MMP). RESULTS High glucose induces the expression and mitochondrial translocation of p66Shc, which promotes MAMs formation and stimulates PINK1-PRKN-mediated mitophagy. Moreover, mitochondrial localized p66Shc reduces MMP and triggers cytosolic mtDNA release, thus activates cGAS/STING signaling and ultimately leads to enhanced autophagy and cellular senescence. Specially, we found p66Shc is required for the interaction between STING and LC3II, as well as between STING and ATG5, thereby regulates cGAS/STING-mediated autophagy. We also identified hundreds of genes associated several biological processes including aging are co-regulated by p66Shc and ATG5, deletion either of which results in diminished cellular senescence. CONCLUSION p66Shc is not only implicated in the initiation of autophagy by promoting MAMs formation, but also helps stabilizing active autophagic flux by activating cGAS/STING pathway in trophoblast.
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Affiliation(s)
- Lulu Ji
- Department of Histology and Embryology, TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Hubei Province, Wuhan, 430071, China
| | - Xiaoli Zhang
- Department of Ultrasound in Gynecology and Obstetrics, Zhongnan Hospital of Wuhan University, Hubei Province, Wuhan, 430071, China
| | - Zhiguo Chen
- Department of Human Anatomy, Basic Medical Sciences of Xinxiang Medical University, Henan Province, Xinxiang, 453003, China
| | - Yuexiao Wang
- Department of Histology and Embryology, TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Hubei Province, Wuhan, 430071, China
| | - Hengxuan Zhu
- Department of Histology and Embryology, TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Hubei Province, Wuhan, 430071, China
| | - Yaru Nai
- Department of Histology and Embryology, TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Hubei Province, Wuhan, 430071, China
| | - Yanyi Huang
- Department of Histology and Embryology, TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Hubei Province, Wuhan, 430071, China
| | - Rujie Lai
- Department of Histology and Embryology, TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Hubei Province, Wuhan, 430071, China
| | - Yu Zhong
- Department of Histology and Embryology, TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Hubei Province, Wuhan, 430071, China
| | - Xiting Yang
- Department of Histology and Embryology, TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Hubei Province, Wuhan, 430071, China
| | - Qiongtao Wang
- Department of Histology and Embryology, TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Hubei Province, Wuhan, 430071, China
| | - Hanyang Hu
- Department of Histology and Embryology, TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Hubei Province, Wuhan, 430071, China.
| | - Lin Wang
- Department of Histology and Embryology, TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Hubei Province, Wuhan, 430071, China.
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Hubei Province, Wuhan, 430071, China.
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Lewis K, La Selva R, Maldonado E, Annis MG, Najyb O, Cepeda Cañedo E, Totten S, Hébert S, Sabourin V, Mirabelli C, Ciccolini E, Lehuédé C, Choinière L, Russo M, Avizonis D, Park M, St-Pierre J, Kleinman CL, Siegel PM, Ursini-Siegel J. p66ShcA promotes malignant breast cancer phenotypes by alleviating energetic and oxidative stress. Redox Biol 2024; 70:103028. [PMID: 38211442 PMCID: PMC10821068 DOI: 10.1016/j.redox.2024.103028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 01/02/2024] [Indexed: 01/13/2024] Open
Abstract
Significant efforts have focused on identifying targetable genetic drivers that support the growth of solid tumors and/or increase metastatic ability. During tumor development and progression to metastatic disease, physiological and pharmacological selective pressures influence parallel adaptive strategies within cancer cell sub-populations. Such adaptations allow cancer cells to withstand these stressful microenvironments. This Darwinian model of stress adaptation often prevents durable clinical responses and influences the emergence of aggressive cancers with increased metastatic fitness. However, the mechanisms contributing to such adaptive stress responses are poorly understood. We now demonstrate that the p66ShcA redox protein, itself a ROS inducer, is essential for survival in response to physiological stressors, including anchorage independence and nutrient deprivation, in the context of poor outcome breast cancers. Mechanistically, we show that p66ShcA promotes both glucose and glutamine metabolic reprogramming in breast cancer cells, to increase their capacity to engage catabolic metabolism and support glutathione synthesis. In doing so, chronic p66ShcA exposure contributes to adaptive stress responses, providing breast cancer cells with sufficient ATP and redox balance needed to withstand such transient stressed states. Our studies demonstrate that p66ShcA functionally contributes to the maintenance of aggressive phenotypes and the emergence of metastatic disease by forcing breast tumors to adapt to chronic and moderately elevated levels of oxidative stress.
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Affiliation(s)
- Kyle Lewis
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada; Department of Biochemistry, McGill University, Montreal, QC, Canada
| | - Rachel La Selva
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada; Division of Experimental Medicine, McGill University, Montreal, QC, Canada
| | - Elias Maldonado
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada; Division of Experimental Medicine, McGill University, Montreal, QC, Canada
| | - Matthew G Annis
- Goodman Cancer Institute, McGill University, Montreal, QC, Canada
| | - Ouafa Najyb
- Department of Biochemistry, McGill University, Montreal, QC, Canada; Goodman Cancer Institute, McGill University, Montreal, QC, Canada
| | - Eduardo Cepeda Cañedo
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada; Division of Experimental Medicine, McGill University, Montreal, QC, Canada
| | - Stephanie Totten
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada; Division of Experimental Medicine, McGill University, Montreal, QC, Canada
| | - Steven Hébert
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada
| | - Valérie Sabourin
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada
| | - Caitlynn Mirabelli
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada; Division of Experimental Medicine, McGill University, Montreal, QC, Canada
| | - Emma Ciccolini
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada; Division of Experimental Medicine, McGill University, Montreal, QC, Canada
| | - Camille Lehuédé
- Goodman Cancer Institute, McGill University, Montreal, QC, Canada
| | - Luc Choinière
- Goodman Cancer Institute, McGill University, Montreal, QC, Canada
| | - Mariana Russo
- Goodman Cancer Institute, McGill University, Montreal, QC, Canada
| | - Daina Avizonis
- Goodman Cancer Institute, McGill University, Montreal, QC, Canada
| | - Morag Park
- Department of Biochemistry, McGill University, Montreal, QC, Canada; Division of Experimental Medicine, McGill University, Montreal, QC, Canada; Goodman Cancer Institute, McGill University, Montreal, QC, Canada; Gerald Bronfman Department of Oncology, McGill University, Montreal, QC, Canada
| | - Julie St-Pierre
- Department of Biochemistry, Microbiology and Immunology and Ottawa Institute of Systems Biology, University of Ottawa, ON, Canada
| | - Claudia L Kleinman
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada; Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Peter M Siegel
- Department of Biochemistry, McGill University, Montreal, QC, Canada; Division of Experimental Medicine, McGill University, Montreal, QC, Canada; Goodman Cancer Institute, McGill University, Montreal, QC, Canada; Gerald Bronfman Department of Oncology, McGill University, Montreal, QC, Canada
| | - Josie Ursini-Siegel
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada; Department of Biochemistry, McGill University, Montreal, QC, Canada; Division of Experimental Medicine, McGill University, Montreal, QC, Canada; Gerald Bronfman Department of Oncology, McGill University, Montreal, QC, Canada.
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4
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Potes Y, Bermejo-Millo JC, Mendes C, Castelão-Baptista JP, Díaz-Luis A, Pérez-Martínez Z, Solano JJ, Sardão VA, Oliveira PJ, Caballero B, Coto-Montes A, Vega-Naredo I. p66Shc signaling and autophagy impact on C2C12 myoblast differentiation during senescence. Cell Death Dis 2024; 15:200. [PMID: 38459002 PMCID: PMC10923948 DOI: 10.1038/s41419-024-06582-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 02/23/2024] [Accepted: 03/01/2024] [Indexed: 03/10/2024]
Abstract
During aging, muscle regenerative capacities decline, which is concomitant with the loss of satellite cells that enter in a state of irreversible senescence. However, what mechanisms are involved in myogenic senescence and differentiation are largely unknown. Here, we showed that early-passage or "young" C2C12 myoblasts activated the redox-sensitive p66Shc signaling pathway, exhibited a strong antioxidant protection and a bioenergetic profile relying predominantly on OXPHOS, responses that decrease progressively during differentiation. Furthermore, autophagy was increased in myotubes. Otherwise, late-passage or "senescent" myoblasts led to a highly metabolic profile, relying on both OXPHOS and glycolysis, that may be influenced by the loss of SQSTM1/p62 which tightly regulates the metabolic shift from aerobic glycolysis to OXPHOS. Furthermore, during differentiation of late-passage C2C12 cells, both p66Shc signaling and autophagy were impaired and this coincides with reduced myogenic capacity. Our findings recognized that the lack of p66Shc compromises the proliferation and the onset of the differentiation of C2C12 myoblasts. Moreover, the Atg7 silencing favored myoblasts growth, whereas interfered in the viability of differentiated myotubes. Then, our work demonstrates that the p66Shc signaling pathway, which highly influences cellular metabolic status and oxidative environment, is critical for the myogenic commitment and differentiation of C2C12 cells. Our findings also support that autophagy is essential for the metabolic switch observed during the differentiation of C2C12 myoblasts, confirming how its regulation determines cell fate. The regulatory roles of p66Shc and autophagy mechanisms on myogenesis require future attention as possible tools that could predict and measure the aging-related state of frailty and disability.
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Affiliation(s)
- Yaiza Potes
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain.
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain.
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), Oviedo, Spain.
| | - Juan C Bermejo-Millo
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), Oviedo, Spain
| | - Catarina Mendes
- CNC-UC, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- CIBB, Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - José P Castelão-Baptista
- CNC-UC, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- CIBB, Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
- PDBEB - Doctoral Program in Experimental Biology and Biomedicine, Institute of Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Andrea Díaz-Luis
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
| | - Zulema Pérez-Martínez
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
- Microbiology service, University Central Hospital of Asturias, Oviedo, Spain
| | - Juan J Solano
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
- Geriatric Service, Monte Naranco Hospital, Av. Doctores Fernández Vega, Oviedo, Spain
| | - Vilma A Sardão
- CIBB, Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
- MIA-Portugal - Multidisciplinary Institute of Ageing, University of Coimbra, Coimbra, Portugal
| | - Paulo J Oliveira
- CNC-UC, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- CIBB, Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - Beatriz Caballero
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), Oviedo, Spain
| | - Ana Coto-Montes
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), Oviedo, Spain
| | - Ignacio Vega-Naredo
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain.
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain.
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), Oviedo, Spain.
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5
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Boncompagni G, Tatangelo V, Lopresti L, Ulivieri C, Capitani N, Tangredi C, Finetti F, Marotta G, Frezzato F, Visentin A, Ciofini S, Gozzetti A, Bocchia M, Calzada-Fraile D, Martin Cofreces NB, Trentin L, Patrussi L, Baldari CT. Leukemic cell-secreted interleukin-9 suppresses cytotoxic T cell-mediated killing in chronic lymphocytic leukemia. Cell Death Dis 2024; 15:144. [PMID: 38360867 PMCID: PMC10869739 DOI: 10.1038/s41419-024-06528-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 12/19/2023] [Accepted: 02/01/2024] [Indexed: 02/17/2024]
Abstract
The tumor microenvironment (TME) plays a central role in the pathogenesis of chronic lymphocytic leukemia (CLL), contributing to disease progression and chemoresistance. Leukemic cells shape the TME into a pro-survival and immunosuppressive niche through contact-dependent and contact-independent interactions with the cellular components of the TME. Immune synapse (IS) formation is defective in CLL. Here we asked whether soluble factors released by CLL cells contribute to their protection from cytotoxic T cell (CTL)-mediated killing by interfering with this process. We found that healthy CTLs cultured in media conditioned by leukemic cells from CLL patients or Eμ-TCL1 mice upregulate the exhaustion marker PD-1 and become unable to form functional ISs and kill target cells. These defects were more pronounced when media were conditioned by leukemic cells lacking p66Shc, a proapoptotic adapter whose deficiency has been implicated in disease aggressiveness both in CLL and in the Eμ-TCL1 mouse model. Multiplex ELISA assays showed that leukemic cells from Eμ-TCL1 mice secrete abnormally elevated amounts of CCL22, CCL24, IL-9 and IL-10, which are further upregulated in the absence of p66Shc. Among these, IL-9 and IL-10 were also overexpressed in leukemic cells from CLL patients, where they inversely correlated with residual p66Shc. Using neutralizing antibodies or the recombinant cytokines we show that IL-9, but not IL-10, mediates both the enhancement in PD-1 expression and the suppression of effector functions in healthy CTLs. Our results demonstrate that IL-9 secreted by leukemic cells negatively modulates the anti-tumor immune abilities of CTLs, highlighting a new suppressive mechanism and a novel potential therapeutical target in CLL.
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Affiliation(s)
| | | | | | | | - Nagaja Capitani
- Department of Life Sciences, University of Siena, Siena, Italy
| | | | | | - Giuseppe Marotta
- Stem Cell Transplant and Cellular Therapy Unit, University Hospital, Siena, Italy
| | - Federica Frezzato
- Department of Medicine, Hematology and Clinical Immunology Branch, Padua University School of Medicine, Padua, Italy
- Venetian Institute of Molecular Medicine, Padua, Italy
| | - Andrea Visentin
- Department of Medicine, Hematology and Clinical Immunology Branch, Padua University School of Medicine, Padua, Italy
- Venetian Institute of Molecular Medicine, Padua, Italy
| | - Sara Ciofini
- Department of Medical Science, Surgery and Neuroscience, University of Siena, Siena, Italy
| | - Alessandro Gozzetti
- Department of Medical Science, Surgery and Neuroscience, University of Siena, Siena, Italy
| | - Monica Bocchia
- Department of Medical Science, Surgery and Neuroscience, University of Siena, Siena, Italy
| | - Diego Calzada-Fraile
- Immunology Unit from Hospital Universitario de la Princesa, Universidad Autónoma de Madrid and Instituto de investigación Sanitaria La Princesa (IIS-IP), Madrid, Spain
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029, Madrid, Spain
| | - Noa B Martin Cofreces
- Immunology Unit from Hospital Universitario de la Princesa, Universidad Autónoma de Madrid and Instituto de investigación Sanitaria La Princesa (IIS-IP), Madrid, Spain
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029, Madrid, Spain
- Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Livio Trentin
- Department of Medicine, Hematology and Clinical Immunology Branch, Padua University School of Medicine, Padua, Italy
- Venetian Institute of Molecular Medicine, Padua, Italy
| | - Laura Patrussi
- Department of Life Sciences, University of Siena, Siena, Italy.
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6
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Zhang Y, Huang CZ, Chen HZ, Nie Y, Hu MQ. [Study of senescence protein p66 Shc on myocardial tissue repair in adult mice]. Sheng Li Xue Bao 2023; 75:946-952. [PMID: 38151356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Our previous study has shown that p66Shc plays an important role in the process of myocardial regeneration in newborn mice, and p66Shc deficiency leads to weakened myocardial regeneration in newborn mice. This study aims to explore the role of p66Shc protein in myocardial injury repair after myocardial infarction in adult mice, in order to provide a new target for the treatment of myocardial injury after myocardial infarction. Mouse myocardial infarction models of adult wild-type (WT) and p66Shc knockout (KO) were constructed by anterior descending branch ligation. The survival rate and heart-to-body weight ratio of two models were compared and analyzed. Masson's staining was used to identify scar area of injured myocardial tissue, and myocyte area was determined by wheat germ agglutinin (WGA) staining. TUNEL staining was used to detect the cardiomyocyte apoptosis. The protein expression of brain natriuretic peptide (BNP), a common marker of myocardial hypertrophy, was detected by Western blotting. The results showed that there was no significant difference in survival rate, myocardial scar area, myocyte apoptosis, and heart weight to body weight ratio between the WT and p66ShcKO mice after myocardial infarction surgery. Whereas the protein expression level of BNP in the p66ShcKO mice was significantly down-regulated compared with that in the WT mice. These results suggest that, unlike in neonatal mice, the deletion of p66Shc has no significant effect on myocardial injury repair after myocardial infarction in adult mice.
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Affiliation(s)
- Yuan Zhang
- National Health Commission Key Laboratory of Cardiovascular Regenerative Medicine, Fuwai Central China Cardiovascular Hospital, Central China Branch of National Center for Cardiovascular Diseases, Zhengzhou University, Zhengzhou 450046, China
| | - Cheng-Zhen Huang
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Hou-Zao Chen
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, China
| | - Yu Nie
- National Health Commission Key Laboratory of Cardiovascular Regenerative Medicine, Fuwai Central China Cardiovascular Hospital, Central China Branch of National Center for Cardiovascular Diseases, Zhengzhou University, Zhengzhou 450046, China
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing 100037, China.
| | - Miao-Qing Hu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing 100037, China.
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Chamgordani MK, Bardestani A, Ebrahimpour S, Esmaeili A. In diabetic male Wistar rats, quercetin-conjugated superparamagnetic iron oxide nanoparticles have an effect on the SIRT1/p66Shc-mediated pathway related to cognitive impairment. BMC Pharmacol Toxicol 2023; 24:81. [PMID: 38129872 PMCID: PMC10734159 DOI: 10.1186/s40360-023-00725-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Quercetin (QC) possesses a variety of health-promoting effects in pure and in conjugation with nanoparticles. Since the mRNA-SIRT1/p66Shc pathway and microRNAs (miRNAs) are implicated in the oxidative process, we aimed to compare the effects of QC and QC-conjugated superparamagnetic iron oxide nanoparticles (QCSPIONs) on this pathway. METHODS Through the use of the chemical coprecipitation technique (CPT), SPIONs were synthesized, coated with dextran, and conjugated with quercetin. Adult male Wistar rats were given intraperitoneal injections of streptozotocin to look for signs of type 1 diabetes (T1D). The animals were randomized into five groups: the control group got deionized water (DI), free QC solution (25 mg/kg), SPIONs (25 mg/kg), and QCSPIONs (25 mg/kg), and all groups received repeat doses administered orally over 35 days. Real-time quantitative PCR was used to assess the levels of miR-34a, let-7a-p5, SIRT1, p66Shc, CASP3, and PARP1 expression in the hippocampus of diabetic rats. RESULTS In silico investigations identified p66Shc, CASP3, and PARP1 as targets of let-7a-5p and miR-34a as possible regulators of SIRT1 genes. The outcomes demonstrated that diabetes elevated miR-34a, p66Shc, CASP3, and PARP1 and downregulated let-7a-5p and SIRT1 expression. In contrast to the diabetic group, QCSPIONs boosted let-7a-5p expression levels and consequently lowered p66Shc, CASP3, and PARP1 expression levels. QCSPIONs also reduced miR-34a expression, which led to an upsurge in SIRT1 expression. CONCLUSION Our results suggest that QCSPIONs can regulate the SIRT1/p66Shc-mediated signaling pathway and can be considered a promising candidate for ameliorating the complications of diabetes.
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Affiliation(s)
- Mahnaz Karami Chamgordani
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, P.O. Box: 8174673441, Iran
| | - Akram Bardestani
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, P.O. Box: 8174673441, Iran
| | - Shiva Ebrahimpour
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, P.O. Box: 8174673441, Iran
| | - Abolghasem Esmaeili
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, P.O. Box: 8174673441, Iran.
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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9
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Zhang Z, Li X, He J, Wang S, Wang J, Liu J, Wang Y. Molecular mechanisms of endothelial dysfunction in coronary microcirculation dysfunction. J Thromb Thrombolysis 2023; 56:388-397. [PMID: 37466848 DOI: 10.1007/s11239-023-02862-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/01/2023] [Indexed: 07/20/2023]
Abstract
Coronary microvascular endothelial cells (CMECs) react to changes in coronary blood flow and myocardial metabolites and regulate coronary blood flow by balancing vasoconstrictors-such as endothelin-1-and the vessel dilators prostaglandin, nitric oxide, and endothelium-dependent hyperpolarizing factor. Coronary microvascular endothelial cell dysfunction is caused by several cardiovascular risk factors and chronic rheumatic diseases that impact CMEC blood flow regulation, resulting in coronary microcirculation dysfunction (CMD). The mechanisms of CMEC dysfunction are not fully understood. However, the following could be important mechanisms: the overexpression and activation of nicotinamide adenine dinucleotide phosphate oxidase (Nox), and mineralocorticoid receptors; the involvement of reactive oxygen species (ROS) caused by a decreased expression of sirtuins (SIRT3/SIRT1); forkhead box O3; and a decreased SKCA/IKCA expression in the endothelium-dependent hyperpolarizing factor electrical signal pathway. In addition, p66Shc is an adapter protein that promotes oxidative stress; although there are no studies on its involvement with cardiac microvessels, it is possible it plays an important role in CMD.
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Affiliation(s)
- Zhiyu Zhang
- Department of Cardiology, The First Hospital of Jilin University, No. 71 of Xinmin Street, Changchun, 13000, China
| | - Xiangjun Li
- Department of Experimental Pharmacology and Toxicology, College of Pharmacy, Jilin University, Changchun, 130000, China
| | - Jiahuan He
- Department of Cardiology, The First Hospital of Jilin University, No. 71 of Xinmin Street, Changchun, 13000, China
| | - Shipeng Wang
- Department of Cardiology, The First Hospital of Jilin University, No. 71 of Xinmin Street, Changchun, 13000, China
| | - Jingyue Wang
- Department of Cardiology, The First Hospital of Jilin University, No. 71 of Xinmin Street, Changchun, 13000, China
| | - Junqian Liu
- Department of Cardiology, The First Hospital of Jilin University, No. 71 of Xinmin Street, Changchun, 13000, China
| | - Yushi Wang
- Department of Cardiology, The First Hospital of Jilin University, No. 71 of Xinmin Street, Changchun, 13000, China.
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10
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YAN JIE, GU CHANGPING, LIU GE, ZHANG YAQIANG, YANG LI, ZHAO TAO, CAO CUICUI, ZHAO LIANG, WU GUANGHAN, WANG YUELAN. Aerobic Exercise in Male Mice Prevents Ventilator-Induced Lung Injury by Inhibiting Mitochondrial Damage from sirt1 Dysregulation. Med Sci Sports Exerc 2023; 55:1770-1780. [PMID: 37144632 PMCID: PMC10487353 DOI: 10.1249/mss.0000000000003203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
BACKGROUND Ventilator-induced lung injury (VILI) is a common complication of mechanical ventilation under general anesthesia. Regular aerobic exercise before surgery improves postoperative recovery and reduces postoperative pulmonary complications, but the mechanism driving this protective effect is unclear. METHODS To determine how aerobic exercise prevents VILI, we investigated the effects of exercise and mechanical ventilation on the lungs of male mice and the effects of AMPK stimulation (simulating exercise) and cyclic stretching on human lung microvascular endothelial cells (HLMVEC). Sirtuin 1 (Sirt1) knockdown male mice were generated to explore the regulating mechanisms of sirt1 on mitochondrial function in male mice after mechanical ventilation was explored. Western blot, flow cytometry, live cell imaging, and mitochondrial function evaluations were used to determine the protective effects of aerobic exercise in preventing mitochondrial damage in VILI. RESULTS Mitochondrial function and cell junctions were destroyed by mechanical ventilation in male mice or cyclic stretching in HLMVEC, a model of VILI. However, mitochondrial function and cell junction dysfunction were improved by exercise before mechanical ventilation (male mice) or treatment with AMPK before cyclic stretching (HLMVEC). p66shc, a marker of oxidative stress, was increased, and PINK1, a marker of mitochondrial autophagy, was decreased by mechanical ventilation or cyclic stretching. Sirt1 knockdown increased p66shc and decreased PINK1. Increased sirt1 expression was observed in the exercise and exercise + ventilation groups, suggesting that sirt1 inhibits mitochondrial damage in VILI. CONCLUSIONS Mechanical ventilation induces mitochondrial damage in lung cells and leads to VILI. Regular aerobic exercise before ventilation may prevent VILI by improving mitochondrial function.
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Affiliation(s)
- JIE YAN
- Department of Anesthesiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, CHINA
| | - CHANGPING GU
- Department of Anesthesiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, CHINA
- Shandong Institute of Anesthesia and Respiratory Critical Medicine, Jinan, Shandong, CHINA
- Department of Anesthesiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, CHINA
| | - GE LIU
- Department of Anesthesiology, The Second Hospital of Shandong University, Jinan, Shandong, CHINA
| | - YAQIANG ZHANG
- Department of Sports Biomechanics, Beijing Sport University, Beijing, CHINA
| | - LI YANG
- Department of Anesthesiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, CHINA
| | - TAO ZHAO
- Department of Anesthesiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, CHINA
| | - CUICUI CAO
- Department of Anesthesiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, CHINA
| | - LIANG ZHAO
- Department of Anesthesiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, CHINA
| | - GUANGHAN WU
- Department of Anesthesiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, CHINA
| | - YUELAN WANG
- Department of Anesthesiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, CHINA
- Shandong Institute of Anesthesia and Respiratory Critical Medicine, Jinan, Shandong, CHINA
- Department of Anesthesiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, CHINA
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11
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Han YC, Liu YT, Zhang H, Xu Y, Liu J, Chen H, Song N, Qin DL, Yang S. VDR alleviates endothelial cell injury in arteriovenous fistula through inhibition of P66Shc-mediated mitochondrial ROS. Sci Rep 2023; 13:11088. [PMID: 37422508 PMCID: PMC10329703 DOI: 10.1038/s41598-023-37510-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 06/22/2023] [Indexed: 07/10/2023] Open
Abstract
To investigate the effects and mechanism of Vitamin D receptor (VDR) signaling on arteriovenous fistula (AVF) endothelial cell injury. Venous tissues of AVF stenosis patients were collected and analyzed, vascular morphology, reactive oxygen species (ROS), and the expression of VDR, P66Shc, fibronectin (FN), collagen-1 (Col-1) were detected. In addition, human umbilical vein endothelial cells (HUVECs) was used in in vitro studies. HUVECs was incubated with transforming growth factor-beta (TGF-β, 50 ng/ml). Aditionally, paricalcitol, VDR overexpression plasmid and Pin1 inhibitor Juglone were used to investigate the regulatory mechanism of VDR in mitochondrial ROS. The parameters of ROS (e.g. MitoSox) and the expression of FN, Col-1 were tested. Moreover, the mitochondrial translocation of P66Shc was analyzed. The expression of VDR was obviously decreased in the venous tissues of AVF stenosis patients. On the contrary, the expression of P66Shc, P-P66Shc, FN, Col-1 and 8-OHdG were increased significantly in the venous tissues of AVF stenosis patients (P < 0.05). In line with this, the level of mitochondrial ROS and the expression of P66Shc, P-P66Shc, FN, Col-1 increased obviously in HUVECs cells under TGF-β condition. Both VDR over-expression plasmid and Pin1 inhibitor Juglone could alleviate TGF-β induced endothelial injury. Mechanistically, VDR overexpression plasmid and Juglone could inhibit the expression of Pin1, and then restrain P66Shc mitochondrial translocation, eventually reduce the level of mitochondrial ROS. Our research indicated that activation of VDR could alleviate venous endothelial cell dysfunction through inhibiting Pin1-mediated mitochondrial translocation of P66Shc and consequently reducing mitochondrial ROS. It suggested that VDR signaling might be an effective target for AVF stenosis treatment.
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Affiliation(s)
- Ya-Chun Han
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yu-Ting Liu
- Department of Nephrology, The Third Xiangya Hospital, Central South University, No.138, Tongzipo Road, Changsha, 410013, Hunan Province, China
| | - Hao Zhang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, No.138, Tongzipo Road, Changsha, 410013, Hunan Province, China
| | - Yong Xu
- Department of Nephrology, The Third Xiangya Hospital, Central South University, No.138, Tongzipo Road, Changsha, 410013, Hunan Province, China
| | - Jun Liu
- Department of Nephrology, The Third Xiangya Hospital, Central South University, No.138, Tongzipo Road, Changsha, 410013, Hunan Province, China
| | - Hong Chen
- Department of Nephrology, The Third Xiangya Hospital, Central South University, No.138, Tongzipo Road, Changsha, 410013, Hunan Province, China
| | - Na Song
- Department of Nephrology, The Third Xiangya Hospital, Central South University, No.138, Tongzipo Road, Changsha, 410013, Hunan Province, China
| | - Dong-Lu Qin
- Department of Cardiovascular, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Shikun Yang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, No.138, Tongzipo Road, Changsha, 410013, Hunan Province, China.
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12
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Priami C, Montariello D, De Michele G, Ruscitto F, Polazzi A, Ronzoni S, Bertalot G, Binelli G, Gambino V, Luzi L, Mapelli M, Giorgio M, Migliaccio E, Pelicci PG. Aberrant activation of p53/p66Shc-mInsc axis increases asymmetric divisions and attenuates proliferation of aged mammary stem cells. Cell Death Differ 2022; 29:2429-2444. [PMID: 35739253 PMCID: PMC9751089 DOI: 10.1038/s41418-022-01029-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 06/01/2022] [Accepted: 06/06/2022] [Indexed: 01/31/2023] Open
Abstract
Aging is accompanied by the progressive decline in tissue regenerative capacity and functions of resident stem cells (SCs). Underlying mechanisms, however, remain unclear. Here we show that, during chronological aging, self-renewing mitoses of mammary SCs (MaSCs) are preferentially asymmetric and that their progeny divides less frequently, leading to decreased number of MaSCs and reduced regenerative potential. Underlying mechanisms are investigated in the p66Shc-/- mouse, which exhibits several features of delayed aging, including reduced involution of the mammary gland (MG). p66Shc is a mitochondrial redox sensor that activates a specific p53 transcriptional program, in which the aging-associated p44 isoform of p53 plays a pivotal role. We report here that aged p66Shc-/- MaSCs show increased symmetric divisions, increased proliferation and increased regenerative potential, to an extent reminiscent of young wild-type (WT) MaSCs. Mechanistically, we demonstrate that p66Shc, together with p53: (i) accumulates in the aged MG, (ii) sustains expression of the cell polarity determinant mInscuteable and, concomitantly, (iii) down-regulates critical cell cycle genes (e.g.,: Cdk1 and Cyclin A). Accordingly, overexpression of p53/p44 increases asymmetric divisions and decreases proliferation of young WT MaSCs in a p66Shc-dependent manner and overexpression of mInsc restores WT-like levels of asymmetric divisions in aged p66Shc-/- MaSCs. Notably, deletion of p66Shc has negligible effects in young MaSCs and MG development. These results demonstrate that MG aging is due to aberrant activation of p66Shc, which induces p53/p44 signaling, leading to failure of symmetric divisions, decreased proliferation and reduced regenerative potential of MaSCs.
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Affiliation(s)
- Chiara Priami
- European Institute of Oncology (IEO) IRCCS, Via Ripamonti 435, 20141, Milan, Italy
| | - Daniela Montariello
- European Institute of Oncology (IEO) IRCCS, Via Ripamonti 435, 20141, Milan, Italy
| | - Giulia De Michele
- European Institute of Oncology (IEO) IRCCS, Via Ripamonti 435, 20141, Milan, Italy
| | - Federica Ruscitto
- European Institute of Oncology (IEO) IRCCS, Via Ripamonti 435, 20141, Milan, Italy
| | - Andrea Polazzi
- European Institute of Oncology (IEO) IRCCS, Via Ripamonti 435, 20141, Milan, Italy
| | - Simona Ronzoni
- European Institute of Oncology (IEO) IRCCS, Via Ripamonti 435, 20141, Milan, Italy
| | - Giovanni Bertalot
- European Institute of Oncology (IEO) IRCCS, Via Ripamonti 435, 20141, Milan, Italy
- U.O.M. Anatomia ed Istologia Patologica, Ospedale Santa Chiara, Largo Medaglie d'Oro 9, 38122, Trento, Italy
| | - Giorgio Binelli
- Department of Biotechnology and Life Sciences, University of Insubria, Via Dunant 3, 21100, Varese, Italy
| | - Valentina Gambino
- European Institute of Oncology (IEO) IRCCS, Via Ripamonti 435, 20141, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Via Santa Sofia 9, 20142, Milan, Italy
| | - Lucilla Luzi
- European Institute of Oncology (IEO) IRCCS, Via Ripamonti 435, 20141, Milan, Italy
| | - Marina Mapelli
- European Institute of Oncology (IEO) IRCCS, Via Ripamonti 435, 20141, Milan, Italy
| | - Marco Giorgio
- European Institute of Oncology (IEO) IRCCS, Via Ripamonti 435, 20141, Milan, Italy
- Department of Biomedical Sciences, University of Padua, Via Bassi 58/B, 35131, Padova, Italy
| | - Enrica Migliaccio
- European Institute of Oncology (IEO) IRCCS, Via Ripamonti 435, 20141, Milan, Italy.
| | - Pier Giuseppe Pelicci
- European Institute of Oncology (IEO) IRCCS, Via Ripamonti 435, 20141, Milan, Italy.
- Department of Oncology and Hemato-Oncology, University of Milan, Via Santa Sofia 9, 20142, Milan, Italy.
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13
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Miller DR, Ingersoll MA, Chou YW, Kosmacek EA, Oberley-Deegan RE, Lin MF. Dynamics of antioxidant heme oxygenase-1 and pro-oxidant p66Shc in promoting advanced prostate cancer progression. Free Radic Biol Med 2022; 193:274-291. [PMID: 36265795 DOI: 10.1016/j.freeradbiomed.2022.10.269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/06/2022] [Accepted: 10/07/2022] [Indexed: 12/14/2022]
Abstract
The castration-resistant (CR) prostate cancer (PCa) is lethal and is the second leading cause of cancer-related deaths in U.S. males. To develop effective treatments toward CR PCa, we investigated reactive oxygen species (ROS) signaling pathway for its role involving in CR PCa progression. ROS can regulate both cell growth and apoptosis: a moderate increase of ROS promotes proliferation; its substantial rise results in cell death. p66Shc protein can increase oxidant species production and its elevated level is associated with the androgen-independent (AI) phenotype of CR PCa cells; while heme oxygenase-1 (HO-1) is an antioxidant enzyme and elevated in a sub-group of metastatic PCa cells. In this study, our data revealed that HO-1 and p66Shc protein levels are co-elevated in various AI PCa cell lines as well as p66Shc cDNA-transfected cells. Knockdown and/or inhibition of either p66Shc or HO-1 protein leads to reduced tumorigenicity as well as a reduction of counterpart protein. Knockdown of HO-1 alone results in increased ROS levels, nucleotide and protein oxidation and induction of cell death. Together, our data indicate that elevated HO-1 protein levels protect PCa cells from otherwise apoptotic conditions induced by aberrant p66Shc/ROS production, which thereby promotes PCa progression to the CR phenotype. p66Shc and HO-1 can serve as functional targets for treating CR PCa.
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Affiliation(s)
- Dannah R Miller
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA.
| | - Matthew A Ingersoll
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA.
| | - Yu-Wei Chou
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA.
| | - Elizabeth A Kosmacek
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA.
| | - Rebecca E Oberley-Deegan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA.
| | - Ming-Fong Lin
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA; Section of Urology, Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA.
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Biondi G, Marrano N, Dipaola L, Borrelli A, Rella M, D'Oria R, Genchi VA, Caccioppoli C, Porreca I, Cignarelli A, Perrini S, Marchetti P, Vincenti L, Laviola L, Giorgino F, Natalicchio A. The p66Shc Protein Mediates Insulin Resistance and Secretory Dysfunction in Pancreatic β-Cells Under Lipotoxic Conditions. Diabetes 2022; 71:1763-1771. [PMID: 35612429 DOI: 10.2337/db21-1066] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 05/16/2022] [Indexed: 11/13/2022]
Abstract
We evaluated the role of the p66Shc redox adaptor protein in pancreatic β-cell insulin resistance that develops under lipotoxic conditions and with excess body fat. Prolonged exposure to palmitate in vitro or the presence of overweight/obesity augmented p66Shc expression levels and caused an impaired ability of exogenous insulin to increase cellular insulin content and secreted C-peptide levels in INS-1E cells and human and murine islets. In INS-1E cells, p66Shc knockdown resulted in enhanced insulin-induced augmentation of insulin content and C-peptide secretion and prevented the ability of palmitate to impair these effects of insulin. Conversely, p66Shc overexpression impaired insulin-induced augmentation of insulin content and C-peptide secretion in both the absence and presence of palmitate. Under lipotoxic condition, the effects of p66Shc are mediated by a p53-induced increase in p66Shc protein levels and JNK-induced p66Shc phosphorylation at Ser36 and appear to involve the phosphorylation of the ribosomal protein S6 kinase at Thr389 and of insulin receptor substrate 1 at Ser307, resulting in the inhibition of insulin-stimulated protein kinase B phosphorylation at Ser473. Thus, the p66Shc protein mediates the impaired β-cell function and insulin resistance induced by saturated fatty acids and excess body fat.
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Affiliation(s)
- Giuseppina Biondi
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Nicola Marrano
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Lucia Dipaola
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Anna Borrelli
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Martina Rella
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Rossella D'Oria
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Valentina A Genchi
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Cristina Caccioppoli
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Immacolata Porreca
- Genetic Research Centre "Gaetano Salvatore" BioGeM, Ariano Irpino, Italy
| | - Angelo Cignarelli
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Sebastio Perrini
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Piero Marchetti
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Leonardo Vincenti
- Division of General Surgery, University Hospital Polyclinic, Bari, Italy
| | - Luigi Laviola
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Francesco Giorgino
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Annalisa Natalicchio
- Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
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Zhang YH, Peng F, Zhang L, Kang K, Yang M, Chen C, Yu H. LONG NONCODING RNA UPREGULATES ADAPTER SHCA PROTEIN EXPRESSION TO PROMOTE COGNITIVE IMPAIRMENT AFTER CARDIAC ARREST AND RESUSCITATION. Shock 2022; 58:169-178. [PMID: 35953462 DOI: 10.1097/shk.0000000000001964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT Aim: More patients are resuscitated from cardiac arrest and cardiopulmonary resuscitation (CA/CPR) due to advances in medical care. However, the burden now lies with post-cardiac arrest cognitive impairment in CA/CPR survivors. Based on our previous study, we aimed to further confirm the correlation between the long noncoding RNA-promoting ShcA (lncRNA-PS)/Src homology and collagen A (ShcA) axis and CA/CPR-induced cognitive impairment in molecular, cellular, and tissue levels. Methods and Results: The in vivo experiments were based on a mouse model of CA/CPR, while oxygen-glucose deprivation and reoxygenation was used as a cell model in vitro. Conditional ShcA suppression in neurons of the hippocampal CA1 region was achieved by cyclization recombinase of bacteriophage P1 recognizing DNA fragment locus of x-over P1 site (Cre/LoxP recombination system). Genetic manipulation of HT22 was achieved by lentivirus targeting lncRNA-PS and ShcA. Neurological function score was remarkably decreased, and cognitive function was affected after restoration of spontaneous circulation. LncRNA-PS and ShcA overexpression after CA/CPR, mainly happened in neurons of hippocampal CA1 region, was observed by in situ hybridization and immunofluorescence. Neuronal ShcA knockdown in hippocampal CA1 region before CA/CPR attenuated cognitive impairment after CA/CPR. ShcA deficiency protected HT22 cell line against oxygen-glucose deprivation and reoxygenation by inhibiting inflammation and apoptosis. In vitro upregulation of lncRNA-PS elevated ShcA expression, which was reversed by knockdown of ShcA. Conclusions: This study revealed that lncRNA-PS/ShcA axis is critically involved in the pathogenesis of cognitive impairment after CA/CPR. By inhibiting ShcA expression in neurons of the hippocampal CA1 region could improve the survival outcomes in mice after CA/CPR.
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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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Hughes WE, Hockenberry J, Miller B, Sorokin A, Beyer AM. Modulation of p66Shc impairs cerebrovascular myogenic tone in low renin but not low nitric oxide models of systemic hypertension. Am J Physiol Heart Circ Physiol 2021; 321:H1096-H1102. [PMID: 34714691 PMCID: PMC8834231 DOI: 10.1152/ajpheart.00542.2021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 11/22/2022]
Abstract
Cerebral blood flow and perfusion are tightly maintained through autoregulation despite changes in transmural pressure. Oxidative stress impairs cerebral blood flow, precipitating cerebrovascular events. Phosphorylation of the adaptor protein p66Shc increases mitochondrial-derived oxidative stress. The effect of p66Shc gain or loss of function in nonhypertensive rats is unclear. We hypothesized that p66Shc gain of function would impair autoregulation of cerebral microcirculation under physiological and pathological conditions. Three previously established transgenic [salt-sensitive (SS) background] p66Shc rats were used, p66-Del/SS (express p66Shc with a nine-amino acid deletion), p66Shc-knockout (KO)/SS (frameshift premature termination codon), and p66Shc signaling and knock-in substitution of Ser36Ala (p66Shc-S36A)/SS (substitution of Ser36Ala). The p66Shc-Del were also bred on Sprague-Dawley (SD) backgrounds (p66-Del/SD), and a subset was exposed to a hypertensive stimulus [NG-nitro-l-arginine methyl ester (l-NAME)] for 4 wk. Active and passive diameters to increasing transmural pressure were measured and myogenic tone was calculated in all groups (SS and SD). Myogenic responses to increasing pressure were impaired in p66Shc-Del/SS rats relative to wild-type (WT)/SS and knock-in substitution of Ser36Ala (S36A; P < 0.05). p66-Del/SD rats did not demonstrate changes in active/passive diameters or myogenic tone relative to WT/SD but did demonstrate attenuated passive diameter responses to higher transmural pressure relative to p66-Del/SS. Four weeks of a hypertensive stimulus (l-NAME) did not alter active or passive diameter responses to increasing transmural pressure (P = 0.86-0.99), but increased myogenic responses relative to p66-Del/SD (P < 0.05). Collectively, we demonstrate the functional impact of p66Shc within the cerebral circulation and demonstrate that the genetic background of p66Shc rats largely drives changes in cerebrovascular function.NEW & NOTEWORTHY We demonstrate that the modulation of p66Shc signaling impairs cerebral artery myogenic tone in a low renin model of hypertension. This impairment is dependent upon the genetic background, as modulated p66Shc signaling in Sprague-Dawley rats does not impair cerebral artery myogenic tone.
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Affiliation(s)
- William E Hughes
- Department of Medicine and Cardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Joe Hockenberry
- Department of Medicine and Cardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Bradley Miller
- Department of Medicine and Cardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Andrey Sorokin
- Department of Medicine and Cardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Andreas M Beyer
- Department of Medicine and Cardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin
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18
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Xie WJ, Zhou G, Li PF, Yang F, An JF, Li H. [Effect of swimming training on the expression of PKC δ/p66Shc protein in mouse myocardium]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2021; 37:688-693. [PMID: 34821107 DOI: 10.12047/j.cjap.6160.2021.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To investigate the effects of different intensity of swimming training on p66Shc protein in mouse myocardium. Methods: Fifty Kunming mice were randomly divided into control group (Group C), weight-bearing swimming group (Group E), weight-bearing swimming + drug group (Group ER), non weight-bearing swimming group (Group P), non weight-bearing swimming + drug group (Group PR), with 10 mice in each group. Group C did not exercise. Groups E, ER, P, and PR received swimming training for 4 weeks. Groups E and ER performed weight-bearing swimming with a 3% body weight, and Group P and Group PR were swimming without weight-bearing, 60 min/d, 6 times/w. Mice in ER and PR groups were injected intraperitoneally with Rottlerin (0.3 mg/kg), a PKCδ inhibitor, before the last two exercises. Groups C, E, and P were injected with the same dose of normal saline. Samples were collected after training finished for 24 hours. The protein expressions of PKCδ, P-PKCδ, P66Shc, P-P66shc and NOX2 were detected by Western blot; PKCδ and P66Shc were detected by immunoprecipitation; malondialdehyde (MDA), reactive oxygen species (ROS) and superoxide dismutase (SOD) in myocardium and serum were analyzed by biochemistry. Results: Compared with Group C, the protein expressions of PKCδ, P-PKCδ, P66Shc, P-P66shc and NOX2 in Group E were increased significantly (P< 0.01), the serum and myocardial MDA levels, myocardial ROS were increased significantly (P<0.05 or P<0.01), and the myocardial SOD activity was decreased (P<0.01), the PKCδ, P-PKCδ, P-P66shc and NOX2 in Group P were increased significantly (P<0.05 or P<0.01), and the myocardial SOD activity was enhanced (P<0.05). Compared with Group E, the protein expressionS of PKCδ (P<0.01), P-PKCδ (P<0.01), P66Shc (P<0.05), P-P66shc (P<0.01), NOX2 (P<0.05) in Group ER was decreased significantly, the protein expression of P66Shc in Group P was decreased significantly (P<0.05), the myocardial MDA (P<0.01) and ROS (P<0.05) were decreased, and the activity of SOD was enhanced (P<0.01). Compared with Group P, the protein expressions of PKCδ, P-PKCδ and P-P66shc in Group PR were decreased significantly (P<0.01), while the expression of NOX2 was increased (P<0.05). Conclusion: Both swimming training of two intensities promoted the increase of PKCδ protein and its phosphorylation in mouse cardiomyocytes. High-intensity swimming training could significantly enhance the expression and phosphorylation level of p66Shc protein, resulting in the production of ROS and the decrease of antioxidant enzyme activity. Low-intensity swimming training enhanced the phosphorylation of p66Shc, but did not promote its protein expression, resulting in the enhancement of myocardial antioxidant capacity and exercise adaptation.
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Affiliation(s)
- Wen-Jie Xie
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Gang Zhou
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Peng-Fei Li
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Fan Yang
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Jing-Fang An
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Hang Li
- College of Physical Education, Hunan University, Changsha 410000, China
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Ren C, Zhou X, Bao X, Zhang J, Tang J, Zhu Z, Zhang N, Bai Y, Xi Y, Zhang Q, Ma B. Dioscorea zingiberensis ameliorates diabetic nephropathy by inhibiting NLRP3 inflammasome and curbing the expression of p66Shc in high-fat diet/streptozotocin-induced diabetic mice. J Pharm Pharmacol 2021; 73:1218-1229. [PMID: 34061184 DOI: 10.1093/jpp/rgab053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 03/01/2021] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Diabetic nephropathy (DN) is a severe diabetic complication. Dioscorea zingiberensis (DZ) possesses excellent pharmacological properties with lower toxicity. The purpose of this study was to investigate the efficacy and mechanism of DZ in DN. METHODS DN was established by the high-fat diet combining intraperitoneal injection of streptozotocin in mice. The DZ (125 and 250 mg/kg/day) were intragastrical administered for 8 consecutive weeks. After treatment, blood, urine and kidney tissue were collected for biological detection, renal morphology, fibrosis and molecular mechanism research, respectively. KEY FINDINGS This study has shown that DZ significantly ameliorated kidney hypertrophy, renal structural damage and abnormal function of the kidney indicators (creatinine, urinary protein and blood urea nitrogen). Further molecular mechanism data suggested that the NLRP3/Cleaved-caspase-1 signal pathway was remarkably activated in DN, and DZ treatment reversed these changes, which indicated that it effectively attenuated inflammatory response caused by hyperglycaemia. In addition, DN inhibits hyperglycaemia-induced activation of oxidative stress by suppressing the expression of p66Shc proteins. CONCLUSIONS DZ could efficiently suppress oxidative stress and inflammatory responses to postpone the development of DN, and its mechanism might be related to inhibition of NLRP3 and p66Shc activities. Thus, DZ could be developed into a new therapeutic agent for DN.
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Affiliation(s)
- Chaoxing Ren
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
| | - Xiaowei Zhou
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
| | - Xiaowen Bao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
| | - Jie Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
| | - Jun Tang
- Jiangsu Huanghe Pharmaceutical Co., Ltd, Yancheng, People's Republic of China
| | - Zhiming Zhu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
| | - Nan Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
- School of Chemical and Molecular Engineering, Nanjing Tech University, Nanjing, People's Republic of China
| | - Yu Bai
- Department of Biological Sciences, University of Toronto Scarborough, ON, Canada
| | - Youli Xi
- Department of Pharmacy, Nanjing Drum Tower Hospital, Nanjing, People's Republic of China
| | - Qi Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
| | - Bo Ma
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, People's Republic of China
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20
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Zhao L, Liu T, Dou ZJ, Wang MT, Hu ZX, Wang B. CB1 receptor antagonist rimonabant protects against chronic intermittent hypoxia-induced renal injury in rats. BMC Nephrol 2021; 22:153. [PMID: 33902473 PMCID: PMC8077827 DOI: 10.1186/s12882-021-02362-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 04/14/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Obstructive sleep apnoea (OSA) induced chronic kidney disease is mainly caused by chronic intermittent hypoxia (CIH). Our study investigate the mechanism underlying CIH-induced renal damage and whether the cannabinoid receptor 1 (CB1R) antagonist rimonabant (Ri) alleviates CIH-induced renal injury. METHODS Male Sprague-Dawley rats were randomly divided into five groups: one normal control (NC) group, two chronic intermittent hypoxia (CIH) groups, and two CIH + Ri groups. Rats in the NC groups were exposed to room air, while the CIH groups were exposed to a CIH environment for 4 weeks (4w CIH group) and 6 weeks (6w CIH group), respectively. Additionally, rats in the CIH + Ri groups were administered 1.5 mg/kg/day Ri for 4 weeks (4w CIH + Ri group) and 6 weeks (6w CIH + Ri group), respectively. Following this, the rats were euthanized and kidneys were excised for downstream analysis. In the renal tissues, the morphological alterations were examined via haematoxylin eosin (HE) staining and periodic acid schiff (PAS) staining, CB1R, Fis1, Mfn1, and p66Shc expression was assessed through western blot and immunohistochemistry, and the mitochondrial ultrastructural changes in kidney sections were assessed by electron microscopy. RESULTS CB1R expression in the 4w and 6w CIH groups was significantly elevated, and further increased with prolonged hypoxia; however, Ri prevented the increase in CIH-induced CB1R expression. Fis1 and p66Shc expression in the CIH groups were increased, but Mfn1 expression decreased. Ri decreased Fis1 and p66Shc expression and increased Mfn1 expression. Renal damage in the 4w or 6w CIH + Ri group was evidently improved compared with that in the 4w or 6w CIH group. CB1R expression was positively correlated with Fis1 and p66Shc and negatively correlated with Mfn1. Meanwhile, electron microscopy showed that the percentage of fragmented mitochondria in the tubular cells in each group was consistent with the trend of CB1R expression. CONCLUSION CIH causes endocannabinoid disorders and induces abnormal mitochondrial dynamics, resulting in renal injury. Treatment with CB1R antagonists reduces CIH-induced renal damage by inhibiting dysregulated renal mitochondrial dynamics.
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Affiliation(s)
- Li Zhao
- Shanxi Medical University, No. 56, Xijian South Road, Taiyuan, 030001, Shanxi, People's Republic of China
| | - Tao Liu
- Shanxi Medical University, No. 56, Xijian South Road, Taiyuan, 030001, Shanxi, People's Republic of China
| | - Zhan-Jun Dou
- Shanxi Medical University, No. 56, Xijian South Road, Taiyuan, 030001, Shanxi, People's Republic of China
| | - Mei-Ting Wang
- Shanxi Medical University, No. 56, Xijian South Road, Taiyuan, 030001, Shanxi, People's Republic of China
| | - Zi-Xuan Hu
- Shanxi Medical University, No. 56, Xijian South Road, Taiyuan, 030001, Shanxi, People's Republic of China
| | - Bei Wang
- The Second Hospital of Shanxi Medical University, No. 382, Wuyi Road, Taiyuan, 030001, Shanxi Province, People's Republic of China.
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21
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Gao X, Zhang C, Zheng P, Dan Q, Luo H, Ma X, Lu C. Arsenic suppresses GDF1 expression via ROS-dependent downregulation of specificity protein 1. Environ Pollut 2021; 271:116302. [PMID: 33360347 DOI: 10.1016/j.envpol.2020.116302] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/06/2020] [Accepted: 12/10/2020] [Indexed: 06/12/2023]
Abstract
Inorganic arsenic, an environmental contaminant, has adverse health outcomes. Our previous studies showed that arsenic causes abnormal cardiac development in zebrafish embryos by downregulating Dvr1/GDF1 expression and that folic acid protects against these effects. However, the mechanism by which arsenic represses Dvr1/GDF1 expression remains unknown. Herein, we demonstrate that specificity protein 1 (Sp1) acts as a transcriptional activator of GDF1. Arsenic treatment downregulated Sp1 at both the mRNA and protein level and its downstream targets GDF1 and SIRT1. Chromatin immunoprecipitation analysis showed that the occupancy of Sp1 on the GDF1 or SIRT1 promoter was significantly reduced in response to arsenite. Further investigation showed that Sp1 overexpression inhibited the arsenic-mediated decrease in GDF1 and SIRT1, while Sp1 knockdown had the opposite effect. We found that expression of the oxidative adaptor p66shc was inversely related to that of SIRT1 and that the binding of SIRT1 to the p66shc promoter was sharply attenuated by arsenite treatment. SIRT1 overexpression attenuated p66shc expression but enhanced GDF1 protein expression, while SIRT1 depletion exerted the opposite effect. Both the antioxidants N-acetylcysteine and folic acid reversed the arsenic-mediated repression of Sp1, GDF1 and SIRT1. Moreover, wild-type p66shc overexpression enhanced the arsenic-mediated repression of Sp1, GDF1 and SIRT1, which was accompanied by an increase in intracellular reactive oxygen species (ROS) levels, while both overexpression of a dominant negative p66shcSer36Ala mutant and deficiency in p66shc reversed these effects. Taken together, our results revealed that arsenic suppresses GDF1 expression via the ROS-dependent downregulation of the Sp1/SIRT1 axis, which forms a negative feedback loop with p66shc to regulate oxidative stress. Our findings reveal a novel molecular mechanism underlying arsenic toxicity and provide new insight into the protective effect of folic acid in arsenic-mediated toxicity.
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Affiliation(s)
- Xiaobo Gao
- Department of Genetics, National Research Institute for Family Planning, Beijing, China
| | - Chen Zhang
- Department of Genetics, National Research Institute for Family Planning, Beijing, China; Graduate School of Peking Union Medical College, Beijing, China
| | - Panpan Zheng
- Department of Genetics, National Research Institute for Family Planning, Beijing, China; Graduate School of Peking Union Medical College, Beijing, China
| | - Qinghua Dan
- Department of Genetics, National Research Institute for Family Planning, Beijing, China; Graduate School of Peking Union Medical College, Beijing, China
| | - Haiyan Luo
- Department of Genetics, National Research Institute for Family Planning, Beijing, China
| | - Xu Ma
- Department of Genetics, National Research Institute for Family Planning, Beijing, China
| | - Cailing Lu
- Department of Genetics, National Research Institute for Family Planning, Beijing, China; Graduate School of Peking Union Medical College, Beijing, China.
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22
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Yu P, Yang K, Jiang M. RXR α Blocks Nerve Regeneration after Spinal Cord Injury by Targeting p66shc. Oxid Med Cell Longev 2021; 2021:8253742. [PMID: 33628383 PMCID: PMC7889345 DOI: 10.1155/2021/8253742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 12/28/2020] [Accepted: 01/17/2021] [Indexed: 11/18/2022]
Abstract
Nerve regeneration after spinal cord injury is regulated by many factors. Studies have found that the expression of retinoid X receptor α (RXRα) does not change significantly after spinal cord injury but that the distribution of RXRα in cells changes significantly. In undamaged tissues, RXRα is distributed in motor neurons and the cytoplasm of glial cells. RXRα migrates to the nucleus of surviving neurons after injury, indicating that RXRα is involved in the regulation of gene expression after spinal cord injury. p66shc is an important protein that regulates cell senescence and oxidative stress. It can induce the apoptosis and necrosis of many cell types, promoting body aging. The absence of p66shc enhances the resistance of cells to reactive oxygen species (ROS) and thus prolongs life. It has been found that p66shc deletion can promote hippocampal neurogenesis and play a neuroprotective role in mice with multiple sclerosis. To verify the function of RXRα after spinal cord injury, we established a rat T9 spinal cord transection model. After RXRα agonist or antagonist administration, we found that RXRα agonists inhibited nerve regeneration after spinal cord injury, while RXRα antagonists promoted the regeneration of injured neurites and the recovery of motor function in rats. The results showed that RXRα played an impeding role in repair after spinal cord injury. Immunofluorescence staining showed that p66shc expression was upregulated in neurons after spinal cord injury (in vivo and in vitro) and colocalized with RXRα. RXRα overexpression in cultured neurons promoted the expression of p66shc, while RXRα interference inhibited the expression of p66shc. Using a luciferase assay, we found that RXRα could bind to the promoter region of p66shc and regulate the expression of p66shc, thereby regulating nerve regeneration after spinal cord injury. The above results showed that RXRα inhibited nerve regeneration after spinal cord injury by promoting p66shc expression, and interference with RXRα or p66shc promoted functional recovery after spinal cord injury.
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Affiliation(s)
- Pei Yu
- Department of Orthopedics, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 97 Ruijin 2nd Road, Shanghai 200025, China
| | - Kai Yang
- Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Min Jiang
- Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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23
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ALTamimi JZ, AlFaris NA, Al-Farga AM, Alshammari GM, BinMowyna MN, Yahya MA. Curcumin reverses diabetic nephropathy in streptozotocin-induced diabetes in rats by inhibition of PKCβ/p 66Shc axis and activation of FOXO-3a. J Nutr Biochem 2021; 87:108515. [PMID: 33017608 DOI: 10.1016/j.jnutbio.2020.108515] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 07/01/2020] [Accepted: 09/11/2020] [Indexed: 02/06/2023]
Abstract
This study investigated if the nephroprotective effect of Curcumin in streptozotocin-induced type 1 diabetes mellitus (DM) in rats involves downregulation/inhibition of p66Shc and examined the underlying mechanisms. Rats were divided into 4 groups (n = 12/group) as control, control + Curcumin (100 mg/kg), T1DM, and T1DM + Curcumin. Curcumin was administered orally to control or diabetic rats for 12 weeks daily. As compared to diabetic rats, Curcumin didn't affect either plasma glucose or insulin levels but significantly reduced serum levels of urea, blood urea nitrogen, and creatinine, and concurrently reduced albumin/protein urea and increased creatinine clearance. It also prevented the damage in renal tubules and mitochondria, mesangial cell expansion, the thickness of the basement membrane. Mechanistically, Curcumin reduced mRNA and protein levels of collagen I/III and transforming growth factor- β-1 (TGF-β1), reduced inflammatory cytokines levels, improved markers of mitochondrial function, and suppressed the release of cytochrome-c and the activation of caspase-3. In the kidneys of both control and diabetic rats, Curcumin reduced the levels of reactive oxygen species (ROS), increased mRNA levels of manganese superoxide dismutase (MnSOD) and gamma-glutamyl ligase, increased glutathione (GSH) and protein levels of Bcl-2 and MnSOD, and increased the nuclear levels of nuclear factor2 (Nrf2) and FOXO-3a. Besides, Curcumin reduced the nuclear activity of the nuclear factor-kappa B (NF-κB), downregulated protein kinase CβII (PKCβII), NADPH oxidase, and p66Shc, and decreased the activation of p66Shc. In conclusion, Curcumin prevents kidney damage in diabetic rats by activating Nrf2, inhibiting Nf-κB, suppressing NADPH oxidase, and downregulating/inhibiting PKCβII/p66Shc axis.
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Affiliation(s)
- Jozaa Z ALTamimi
- Nutrition and Food Science, Department of Physical Sport Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Nora A AlFaris
- Nutrition and Food Science, Department of Physical Sport Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia.
| | - Ammar M Al-Farga
- Biochemistry Department, College of Sciences, University of Jeddah, Jeddah, Saudi Arabia
| | - Ghedeir M Alshammari
- Department of Food Science and Nutrition, College of Food and Agricultural Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Mohammed A Yahya
- Department of Food Science and Nutrition, College of Food and Agricultural Science, King Saud University, Riyadh, Saudi Arabia
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Hirschhäuser C, Sydykov A, Wolf A, Esfandiary A, Bornbaum J, Kutsche HS, Boengler K, Sommer N, Schreckenberg R, Schlüter KD, Weissmann N, Schermuly R, Schulz R. Lack of Contribution of p66shc to Pressure Overload-Induced Right Heart Hypertrophy. Int J Mol Sci 2020; 21:ijms21249339. [PMID: 33302436 PMCID: PMC7762598 DOI: 10.3390/ijms21249339] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/02/2020] [Accepted: 12/03/2020] [Indexed: 11/25/2022] Open
Abstract
The leading cause of death in pulmonary arterial hypertension (PAH) is right ventricular (RV) failure (RVF). Reactive oxygen species (ROS) have been suggested to play a role in the development of RV hypertrophy (RVH) and the transition to RVF. The hydrogen peroxide-generating protein p66shc has been associated with left ventricular (LV) hypertrophy but its role in RVH is unclear. The purpose of this study was to determine whether genetic deletion of p66shc affects the development and/or progression of RVH and RVF in the pulmonary artery banding (PAB) model of RV pressure overload. The impact of p66shc on mitochondrial ROS formation, RV cardiomyocyte function, as well as on RV morphology and function were studied three weeks after PAB or sham operation. PAB in wild type mice did not affect mitochondrial ROS production or RV cardiomyocyte function, but induced RVH and impaired cardiac function. Genetic deletion of p66shc did also not alter basal mitochondrial ROS production or RV cardiomyocyte function, but impaired RV cardiomyocyte shortening was observed following PAB. The development of RVH and RVF following PAB was not affected by p66shc deletion. Thus, our data suggest that p66shc-derived ROS are not involved in the development and progression of RVH or RVF in PAH.
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Affiliation(s)
- Christine Hirschhäuser
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
- Correspondence: ; Tel.: +49-641-99-47252
| | - Akylbek Sydykov
- Excellence Cluster Cardiopulmonary System (ECCPS), Justus-Liebig-Universität, 35392 Gießen, Germany; (A.S.); (A.E.); (N.S.); (N.W.); (R.S.)
| | - Annemarie Wolf
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
| | - Azadeh Esfandiary
- Excellence Cluster Cardiopulmonary System (ECCPS), Justus-Liebig-Universität, 35392 Gießen, Germany; (A.S.); (A.E.); (N.S.); (N.W.); (R.S.)
| | - Julia Bornbaum
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
| | - Hanna Sarah Kutsche
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
| | - Kerstin Boengler
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
| | - Natascha Sommer
- Excellence Cluster Cardiopulmonary System (ECCPS), Justus-Liebig-Universität, 35392 Gießen, Germany; (A.S.); (A.E.); (N.S.); (N.W.); (R.S.)
| | - Rolf Schreckenberg
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
| | - Klaus-Dieter Schlüter
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
| | - Norbert Weissmann
- Excellence Cluster Cardiopulmonary System (ECCPS), Justus-Liebig-Universität, 35392 Gießen, Germany; (A.S.); (A.E.); (N.S.); (N.W.); (R.S.)
| | - Ralph Schermuly
- Excellence Cluster Cardiopulmonary System (ECCPS), Justus-Liebig-Universität, 35392 Gießen, Germany; (A.S.); (A.E.); (N.S.); (N.W.); (R.S.)
| | - Rainer Schulz
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
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Elumalai S, Karunakaran U, Moon JS, Won KC. High glucose-induced PRDX3 acetylation contributes to glucotoxicity in pancreatic β-cells: Prevention by Teneligliptin. Free Radic Biol Med 2020; 160:618-629. [PMID: 32763411 DOI: 10.1016/j.freeradbiomed.2020.07.030] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/22/2020] [Accepted: 07/23/2020] [Indexed: 12/25/2022]
Abstract
Chronic hyperglycemia has deleterious effects on pancreatic β-cell function and survival in type 2 diabetes (T2D) due to the low expression level of endogenous antioxidants in the β-cells. Peroxiredoxin-3 (PRDX3) is a mitochondria specific H202 scavenger and protects the cell from mitochondrial damage. However, nothing is known about how glucotoxicity influences PRDX3 function in the pancreatic beta cells. Exposure of rat insulinoma INS-1 cells and human beta cells (1.1B4) to high glucose conditions (30mM) stimulated acetylation of PRDX3 which facilitates its hyper-oxidation causing mitochondrial dysfunction by SIRT1 degradation. SIRT1 deficiency induces beta cell apoptosis via NOX-JNK-p66Shc signalosome activation. Herein we investigated the direct effect of Teneligliptin, a newer DPP-4 inhibitor on beta-cell function and survival in response to high glucose conditions. Teneligliptin treatment enhances SIRT1 protein levels and activity by USP22, an ubiquitin specific peptidase. Activated SIRT1 prevents high glucose-induced PRDX3 acetylation by SIRT3 resulted in inhibition of PRDX3 hyper-oxidation thereby strengthening the mitochondrial antioxidant defense. Notably, we identify PRDX3 as a novel SIRT3 target and show their physical interaction. Intriguingly, inhibition of SIRT1 activity by EX-527 or SIRT1 siRNA knockdown exacerbated the SIRT3 mediated PRDX3 deacetylation which leads to peroxiredoxin-3 hyper-oxidation and beta-cell apoptosis by the activation of NOX-JNK-p66Shc signalosome. Collectively, our results unveil a novel and first direct effect of high glucose on PRDX3 acetylation on beta-cell dysfunction by impaired antioxidant defense and SIRT1 mediated SIRT3-PRDX3 activation by Teneligliptin suppresses high glucose-mediated mitochondrial dysfunction.
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Affiliation(s)
- Suma Elumalai
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Udayakumar Karunakaran
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Jun Sung Moon
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Kyu Chang Won
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea.
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Lai CH, Xu K, Zhou J, Wang M, Zhang W, Liu X, Xiong J, Wang T, Wang Q, Wang H, Xu T, Hu H. DEPDC1B is a tumor promotor in development of bladder cancer through targeting SHC1. Cell Death Dis 2020; 11:986. [PMID: 33203836 PMCID: PMC7672062 DOI: 10.1038/s41419-020-03190-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 10/09/2020] [Accepted: 10/22/2020] [Indexed: 12/24/2022]
Abstract
Bladder cancer is one of the most commonly diagnosed malignant tumors in the urinary system and causes a massive cancer-related death. DEPDC1B is a DEP domain-containing protein that has been found to be associated with a variety of human cancers. This study aimed to explore the role and mechanism of DEPDC1B in the development of bladder cancer. The analysis of clinical specimens revealed the upregulated expression of DEPDC1B in bladder cancer, which was positively related to tumor grade. In vitro and in vivo studies showed that DEPDC1B knockdown could inhibit the growth of bladder cancer cells or xenografts in mice. The suppression of bladder cancer by DEPDC1B was executed through inhibiting cell proliferation, cell migration, and promoting cell apoptosis. Moreover, a mechanistic study found that SHC1 may be an important route through which DEPDC1B regulates the development of bladder cancer. Knockdown of SHC1 in DEPDC1B-overexpressed cancer cells could abolish the promotion effects induced by DEPDC1B. In conclusion, DEPDC1B was identified as a key regulator in the development of bladder cancer, which may be used as a potential therapeutic target in the treatment of bladder cancer.
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Affiliation(s)
- Chin-Hui Lai
- Department of Urology, Peking University People's Hospital, Beijing, China
| | - Kexin Xu
- Department of Urology, Peking University People's Hospital, Beijing, China
| | - Jianhua Zhou
- Department of Urology, Peking University People's Hospital, Beijing, China
| | - Mingrui Wang
- Department of Urology, Peking University People's Hospital, Beijing, China
| | - Weiyu Zhang
- Department of Urology, Peking University People's Hospital, Beijing, China
| | - Xianhui Liu
- Department of Urology, Peking University People's Hospital, Beijing, China
| | - Jie Xiong
- Department of Urology, Peking University People's Hospital, Beijing, China
| | - Tao Wang
- Department of Urology, Peking University People's Hospital, Beijing, China
| | - Qi Wang
- Department of Urology, Peking University People's Hospital, Beijing, China
| | - Huanrui Wang
- Department of Urology, Peking University People's Hospital, Beijing, China
| | - Tao Xu
- Department of Urology, Peking University People's Hospital, Beijing, China
| | - Hao Hu
- Department of Urology, Peking University People's Hospital, Beijing, China.
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27
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Zhang K, Liu Y, Liu X, Du J, Wang Y, Yang J, Li Y, Liu C. Clinicopathological significance of multiple molecular features in undifferentiated and dedifferentiated endometrial carcinomas. Pathology 2020; 53:179-186. [PMID: 33070954 DOI: 10.1016/j.pathol.2020.07.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 07/17/2020] [Accepted: 07/23/2020] [Indexed: 01/02/2023]
Abstract
We investigated the clinicopathological significance of multiple molecular features in undifferentiated and dedifferentiated endometrial carcinomas (UDECs). Eighteen dedifferentiated endometrial carcinomas (DDECs) and three undifferentiated endometrial carcinomas (UECs) were collected. Polymerase-ε exonuclease domain mutations (POLE-EDM) were analysed by Sanger sequencing. SWI/SNF complex subunits, mismatch repair (MMR) proteins, p53, and PD-L1 were evaluated by immunohistochemistry. The SWI/SNF complex was inactivated in half of the UDECs; variably combined with deficient MMR (dMMR), POLE-EDM, or p53 aberrance. Deficiencies in BRG1 and ARID1A were mutually exclusive (p<0.05) in DDECs. ARID1A defects were mostly (8/9) associated with dMMR and typically occurred simultaneously in both endometrioid and dedifferentiated components, whereas BRG1 defects were less frequently (3/7) combined with dMMR and were only observed in dedifferentiated cells. Two-thirds of the UDECs displayed dMMR, mainly caused by the MLH1 promotor methylation. Mutant p53 immunostaining was detected in accordant or subclonal patterns. All three POLE-EDM UDEC patients had stage IA disease with either dMMR or p53 abnormality. Strong positive signals for PD-L1 were mainly detected in dMMR samples. BRG1 defects may likely trigger the progression of dedifferentiation in UDECs by superimposing the pre-existing driver events or by initiating UECs de novo, whereas ARID1A inactivation is subordinate and may likely be secondary to dMMR. The biological behaviours of BRG1-intact UDECs were evaluated according to The Cancer Genome Atlas molecular classification; their driver events require further analysis. Exact molecular subtypes can be helpful for clinical management and treatment decisions for patients with UDEC.
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Affiliation(s)
- Kun Zhang
- Department of Pathology, Third Hospital, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Yan Liu
- Department of Pathology, Third Hospital, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Xiaodan Liu
- Department of Pathology, Third Hospital, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Juan Du
- Department of Pathology, Third Hospital, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Yuxiang Wang
- Department of Pathology, Third Hospital, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Jing Yang
- Department of Pathology, Third Hospital, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Yingxian Li
- Department of Pathology, Women and Children Hospital, Zhangjiakou, Hebei, China
| | - Congrong Liu
- Department of Pathology, Third Hospital, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China.
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Cheng M, Wu X, Wang F, Tan B, Hu J. Electro-Acupuncture Inhibits p66Shc-Mediated Oxidative Stress to Facilitate Functional Recovery After Spinal Cord Injury. J Mol Neurosci 2020; 70:2031-2040. [PMID: 32488847 DOI: 10.1007/s12031-020-01609-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 05/19/2020] [Indexed: 01/30/2023]
Abstract
Oxidative stress is the core problem in improving secondary spinal cord injury (SCI). To investigate the effect of electro-acupuncture with different frequencies on neuroinflammation, oxidative stress injury, as well as related signaling pathways, male Sprague-Dawley (SD) rats were induced using operation for model SCI and then treated with electrical stimulation at low frequency (2 mA, 0.2 Hz), medium frequency (2 mA, 50 Hz), and high frequency (2 mA, 100 Hz), respectively. Here, we first demonstrated that the JNK/p66Shc signal pathway promoted ROS generation and inhibited the anti-oxidation effect of FoxO3a to induce oxidative stress damage after SCI and the mechanism of electro-acupuncture in anti-oxidative stress. Electro-acupuncture facilitated functional recovery after SCI and improved the apoptosis of neurons. Furthermore, p38MAPK-mediated microglia activation and inflammatory reaction and JNK/p66Shc-mediated ROS generation and oxidative stress damage were both attenuated by electro-acupuncture. However, the inhibitory effect of electro-acupuncture on p38MAPK was enslaved to the acupuncture frequency, but the ROS generation and phosphorylation of p66Shc were effectively inhibited by electro-acupuncture. Therefore, the activation of JNK/p66Shc promoted the ROS-induced oxidative stress damage after SCI, and inhibiting the phosphorylation of p66Shc-mediated oxidative stress was the key target of electro-acupuncture to facilitate functional recovery SCI, but not p38MAPK.
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Affiliation(s)
- Ming Cheng
- Department of Orthopedics, Sichuan Academy of Medical Sciences and Sichuan People's Hospital, Chengdu, 610072, China
- Department of Orthopedics, JinNiu District People's Hospital of Chengdu, Chengdu, 610036, China
| | - Xiaojing Wu
- Department of Orthopedics, Sichuan Academy of Medical Sciences and Sichuan People's Hospital, Chengdu, 610072, China
| | - Fei Wang
- Department of Orthopedics, Sichuan Academy of Medical Sciences and Sichuan People's Hospital, Chengdu, 610072, China
| | - Bo Tan
- Department of Orthopedics, Sichuan Academy of Medical Sciences and Sichuan People's Hospital, Chengdu, 610072, China
| | - Jiang Hu
- Department of Orthopedics, Sichuan Academy of Medical Sciences and Sichuan People's Hospital, Chengdu, 610072, China.
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Borkowska A, Popowska U, Spodnik J, Herman-Antosiewicz A, Woźniak M, Antosiewicz J. JNK/p66Shc/ITCH Signaling Pathway Mediates Angiotensin II-induced Ferritin Degradation and Labile Iron Pool Increase. Nutrients 2020; 12:nu12030668. [PMID: 32121405 PMCID: PMC7146217 DOI: 10.3390/nu12030668] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 02/24/2020] [Accepted: 02/26/2020] [Indexed: 12/14/2022] Open
Abstract
Angiotensin II (Ang II) induces deleterious changes in cellular iron metabolism and increases the generation of reactive oxygen species. This leads to an impairment of neuronal and vascular function. However, the mechanism underpinning Ang II-induced changes in iron metabolism is not known. We hypothesized that Ang II-induced ferritin degradation and an increase in the labile iron pool are mediated by the c-Jun N-terminal kinase (JNK)/p66Shc/ITCH signaling pathway. We show that Ang II treatment induced ferritin degradation in an endothelial cell lines derived from the bovine stem pulmonary artery (CPAE), human umbilical vein endothelial cells (HUVEC), and HT22 neuronal cells. Ferritin degradation was accompanied by an increase in the labile iron pool, as determined by changes in calcein fluorescence. The JNK inhibitor SP600125 abolished Ang II-induced ferritin degradation. Furthermore, the effect of Ang II on ferritin levels was completely abolished in cells transfected with vectors encoding catalytically inactive variants of JNK1 or JNK2. CPAE cells expressing inactive ITCHor p66Shc (substrates of JNK kinases) were completely resistant to Ang II-induced ferritin degradation. These observations suggest that Ang II-induced ferritin degradation and, hence, elevation of the levels of highly reactive iron, are mediated by the JNK/p66Shc/ITCH signaling pathway.
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Affiliation(s)
- Andżelika Borkowska
- Department of Bioenergetics and Physiology of Exercise, Medical University of Gdansk, 80-211 Gdansk, Poland
- Correspondence: ; (A.B.); (J.A.); Tel.: +48-58-349-14-50 (A.B.)
| | - Urszula Popowska
- Department of Medical Chemistry, Medical University of Gdansk, 80-211 Gdansk, Poland; (U.P.); (M.W.)
| | - Jan Spodnik
- Department of Anatomy and Neurobiology, Medical University of Gdansk, 80-211 Gdansk, Poland;
| | | | - Michał Woźniak
- Department of Medical Chemistry, Medical University of Gdansk, 80-211 Gdansk, Poland; (U.P.); (M.W.)
| | - Jędrzej Antosiewicz
- Department of Bioenergetics and Physiology of Exercise, Medical University of Gdansk, 80-211 Gdansk, Poland
- Correspondence: ; (A.B.); (J.A.); Tel.: +48-58-349-14-50 (A.B.)
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Oke SL, Sohi G, Hardy DB. Perinatal protein restriction with postnatal catch-up growth leads to elevated p66Shc and mitochondrial dysfunction in the adult rat liver. Reproduction 2020; 159:27-39. [PMID: 31689235 PMCID: PMC6933810 DOI: 10.1530/rep-19-0188] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 11/05/2019] [Indexed: 12/14/2022]
Abstract
Epidemiological data suggest an inverse relationship between birth weight and long-term metabolic deficits, which is exacerbated by postnatal catch-up growth. We have previously demonstrated that rat offspring subject to maternal protein restriction (MPR) followed by catch-up growth exhibit impaired hepatic function and ER stress. Given that mitochondrial dysfunction is associated with various metabolic pathologies, we hypothesized that altered expression of p66Shc, a gatekeeper of oxidative stress and mitochondrial function, contributes to the hepatic defects observed in MPR offspring. To test this hypothesis, pregnant Wistar rats were fed a control (20% protein) diet or an isocaloric low protein (8%; LP) diet throughout gestation. Offspring born to control dams received a control diet in postnatal life, while MPR offspring remained on a LP diet (LP1) or received a control diet post weaning (LP2) or at birth (LP3). At four months, LP2 offspring exhibited increased protein abundance of both p66Shc and the cis-trans isomerase PIN1. This was further associated with aberrant markers of oxidative stress (i.e. elevated 4-HNE, SOD1 and SOD2, decreased catalase) and aerobic metabolism (i.e., increased phospho-PDH and LDHa, decreased complex II, citrate synthase and TFAM). We further demonstrated that tunicamycin-induced ER stress in HepG2 cells led to increased p66Shc protein abundance, suggesting that ER stress may underlie the programmed effects observed in vivo. In summary, because these defects are exclusive to adult LP2 offspring, it is possible that a low protein diet during perinatal life, a period of liver plasticity, followed by catch-up growth is detrimental to long-term mitochondrial function.
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Affiliation(s)
- Shelby L Oke
- The Children’s Health Research Institute, London, Ontario, Canada
- Lawson Health Research Institute, London, Ontario, Canada
- Department of Obstetrics and Gynaecology, London, Ontario, Canada
- Department of Physiology and Pharmacology, London, Ontario, Canada
- The University of Western Ontario, London, Ontario, Canada
| | - Gurjeev Sohi
- Department of Physiology and Pharmacology, London, Ontario, Canada
- The University of Western Ontario, London, Ontario, Canada
| | - Daniel B Hardy
- The Children’s Health Research Institute, London, Ontario, Canada
- Lawson Health Research Institute, London, Ontario, Canada
- Department of Obstetrics and Gynaecology, London, Ontario, Canada
- Department of Physiology and Pharmacology, London, Ontario, Canada
- The University of Western Ontario, London, Ontario, Canada
- Correspondence should be addressed to D B Hardy;
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31
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Karunakaran U, Lee JE, Elumalai S, Moon JS, Won KC. Myricetin prevents thapsigargin-induced CDK5-P66Shc signalosome mediated pancreatic β-cell dysfunction. Free Radic Biol Med 2019; 141:59-66. [PMID: 31163256 DOI: 10.1016/j.freeradbiomed.2019.05.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 05/30/2019] [Accepted: 05/31/2019] [Indexed: 12/18/2022]
Abstract
Chronic endoplasmic reticulum (ER) stress has deleterious effects on pancreatic β-cell function and survival in type 2 diabetes (T2D). Cyclin-dependent kinase 5 (CDK5) plays a critical role in β-cell failure under diabetic milieu conditions. However, little information is available on CDK5's ability to impair the function of β-cells via a chemical ER stress inducer thapsigargin. Myricetin, a natural flavonoid, has therapeutic potential for the treatment of type 2 diabetes mellitus. Therefore, we examined the effect of CDK5 on thapsigargin-induced β-cell apoptosis, and explored the relationship between myricetin and CDK5. Exposure of beta cells with thapsigargin, induced a Src-mediated redox signaling (VAV2-Rac1-NOX) formation and CDK5 activation. Activated CDK5 induced antiapoptotic protein myeloid cell leukemia sequence 1 (Mcl-1) degradation which was associated with p66Shc serine 36 phosphorylation, causing beta cell apoptosis via mitochondrial dysfunction. Exposure of beta cells to myricetin resulted in an acute inhibition of Src-mediated redox signaling (VAV2-Rac1-NOX) formation and CDK5 activation. Myricetin inhibited CDK5 activation by directly binding to its ATP-binding pocket. Treatment with myricetin also enhanced the stability of Mcl-1 after thapsigargin treatment. Inhibition of CDK5 with myricetin or roscovitine, a CDK5 inhibitor attenuates thapsigargin induced p66Shc serine 36 phosphorylation and also reduced mitochondrial dysfunction by decreasing mitochondrial ROS and caspase-3 activation. In addition, myricetin was observed to enhance PDX-1 and insulin mRNA expression and potentiate glucose stimulated insulin secretion (GSIS). Taken together, these findings indicate that thapsigargin-induced early molecular events lead to CDK5-p66Shc signalosome contributes to thapsigargin-induced pancreatic β-cell dysfunction. Myricetin blocked thapsigargin induced CDK5-p66Shc signalosome formation and prevented pancreatic beta cell dysfunction. In this study, we demonstrated for the first time that thapsigargin initiated CDK5-p66Shc signalosome mediates the pancreatic beta cell dysfunction and myricetin protects the pancreatic beta cells through the inhibition of CDK5-p66Shc signalosome.
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Affiliation(s)
- Udayakumar Karunakaran
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Ji Eun Lee
- Department of Internal Medicine, CHA Gumi Medical Center, CHA University, Gumi, Republic of Korea
| | - Suma Elumalai
- Institute of Medical Science, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Jun Sung Moon
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea.
| | - Kyu Chang Won
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea; Institute of Medical Science, Yeungnam University College of Medicine, Daegu, Republic of Korea.
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Jiang W, Xiao T, Han W, Xiong J, He T, Liu Y, Huang Y, Yang K, Bi X, Xu X, Yu Y, Li Y, Gu J, Zhang J, Huang Y, Zhang B, Zhao J. Klotho inhibits PKCα/p66SHC-mediated podocyte injury in diabetic nephropathy. Mol Cell Endocrinol 2019; 494:110490. [PMID: 31207271 DOI: 10.1016/j.mce.2019.110490] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 06/12/2019] [Accepted: 06/12/2019] [Indexed: 10/26/2022]
Abstract
Diabetic nephropathy (DN) is a progressive disease, the main pathogeny of which is podocyte injury. As a calcium-dependent serine/threonine protein kinase involved in podocyte injury, protein kinase C isoform α (PKCα) was reported to regulate the phosphorylation of p66SHC. However, the role of PKCα/p66SHC in DN remains unknown. Klotho, an anti-aging protein with critical roles in protecting kidney, is expressed predominantly in the kidney and secreted in the blood. Nonetheless, the mechanism underlying amelioration of podocyte injury by Klotho in DN remains unclear. Our data showed that Klotho was decreased in STZ-treated mice and was further declined in diabetic KL ± mice. As expected, Klotho deficiency aggravated diabetes-induced proteinuria and podocyte injury, accompanied by the activation of PKCα and p66SHC. In contrast, overexpression of Klotho partially ameliorated PKCα/p66SHC-mediated podocyte injury and proteinuria. In addition, in vitro experiments showed that activation of PKCα and subsequently increased intracellular reactive oxygen species (ROS) was involved in podocytic apoptosis induced by high glucose (HG), which could be partially reversed by Klotho. Hence, we conclude that Klotho might inhibit PKCα/p66SHC-mediated podocyte injury in diabetic nephropathy.
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Affiliation(s)
- Wei Jiang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Tangli Xiao
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Wenhao Han
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Jiachuan Xiong
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Ting He
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Yong Liu
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Yinghui Huang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Ke Yang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Xianjin Bi
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Xinli Xu
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Yanlin Yu
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Yan Li
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Jun Gu
- State Key Laboratory of Protein and Plant Gene Research, College of Life Science, Peking University, Beijing, China
| | - Jingbo Zhang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Yunjian Huang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Bo Zhang
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China.
| | - Jinghong Zhao
- Department of Nephrology, Institute of Nephrology of Chongqing and Kidney Center of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing, China.
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33
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Miller DR, Ingersoll MA, Chatterjee A, Baker B, Shrishrimal S, Kosmacek EA, Zhu Y, Cheng PW, Oberley-Deegan RE, Lin MF. p66Shc protein through a redox mechanism enhances the progression of prostate cancer cells towards castration-resistance. Free Radic Biol Med 2019; 139:24-34. [PMID: 31100478 PMCID: PMC6620027 DOI: 10.1016/j.freeradbiomed.2019.05.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 05/10/2019] [Accepted: 05/13/2019] [Indexed: 02/06/2023]
Abstract
Prostate cancer (PCa) remains the second leading cause of cancer-related deaths in U.S. men due to the development of the castration-resistant (CR) PCa phenotype. A useful cell model for analysis of the molecular mechanism of PCa progression is required for developing targeted therapies toward CR PCa. In this study, we established a PCa cell progressive model in three separate cell lines, of which androgen-independent (AI) cells were derived from respective androgen-sensitive (AS) cells. Those AI PCa cells obtain the biochemical properties of the clinical CR phenotype, including AR and PSA expression as well as enhanced proliferation and tumorigenicity under androgen-deprived conditions. Thus, those AI cells recapitulate CR PCa and exhibit increased oxidant species levels as well as enhanced signaling of proliferation and survival pathways. H2O2 treatment directly enhanced AS cell growth and migration, which was counteracted by antioxidant N-acetyl cysteine (NAC). We further identified p66Shc protein enhances the production of oxidant species which contributes to phenotypic and cell signaling alterations from AS to AI PCa cells. H2O2-treated LNCaP-AS cells had a similar signaling profile to that of LNCaP-AI or p66Shc subclone cells. Conversely, the oxidant species-driven alterations of LNCaP-AI and p66Shc subclone cell signaling is mitigated by p66Shc knockdown. Moreover, LNCaP-AI cells and p66Shc subclones, but not LNCaP-AS cells, develop xenograft tumors with metastatic nodules, correlating with p66Shc protein levels. Together, the data shows that p66Shc enhances oxidant species production that plays a role in promoting PCa progression to the CR stage.
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MESH Headings
- Acetylcysteine/pharmacology
- Animals
- Antineoplastic Agents/pharmacology
- Cell Line, Tumor
- Cell Movement/drug effects
- Cell Proliferation/drug effects
- Disease Progression
- Drug Resistance, Neoplasm/genetics
- Gene Expression Profiling
- Gene Expression Regulation, Neoplastic
- Heterografts
- Humans
- Hydrogen Peroxide/pharmacology
- Kallikreins/genetics
- Kallikreins/metabolism
- Lymphatic Metastasis
- Male
- Mice
- Mice, Nude
- Prostate/drug effects
- Prostate/metabolism
- Prostate/pathology
- Prostate-Specific Antigen/genetics
- Prostate-Specific Antigen/metabolism
- Prostatic Neoplasms, Castration-Resistant/drug therapy
- Prostatic Neoplasms, Castration-Resistant/genetics
- Prostatic Neoplasms, Castration-Resistant/metabolism
- Prostatic Neoplasms, Castration-Resistant/pathology
- Reactive Oxygen Species/metabolism
- Receptors, Androgen/genetics
- Receptors, Androgen/metabolism
- Src Homology 2 Domain-Containing, Transforming Protein 1/genetics
- Src Homology 2 Domain-Containing, Transforming Protein 1/metabolism
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Affiliation(s)
- Dannah R Miller
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Matthew A Ingersoll
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Arpita Chatterjee
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Brian Baker
- Department of Biology, Clark Atlanta University, Atlanta, GA, USA
| | - Shashank Shrishrimal
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Elizabeth A Kosmacek
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Yuxiang Zhu
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Pi-Wan Cheng
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Rebecca E Oberley-Deegan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Ming-Fong Lin
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA; Section of Urology, Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA; College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.
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34
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Wang C, Lu H, Luo C, Song C, Wang Q, Peng Y, Xin Y, Liu T, Yang W. miR-412-5p targets Xpo1 to regulate angiogenesis in hemorrhoid tissue. Gene 2019; 705:167-176. [PMID: 31026569 DOI: 10.1016/j.gene.2019.04.058] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 03/28/2019] [Accepted: 04/19/2019] [Indexed: 02/07/2023]
Abstract
Hemorrhoid is a common and recurrent proctological disease, which is often accompanied by angiogenesis and edema. MicroRNAs in the DLK1-DIO3 imprinted clusters are involved in the development and pathogenesis of mammalian hemorrhoids. Results of the present study indicated multiple, differential expression of DLK1-DIO3 imprinted cluster microRNA between hemorrhoid and normal tissues, where miR-412-5p expression in hemorrhoid tissue was significantly decreased. Fluorescein reporter assays showed that miR-412-5p silenced Xpo1 mRNA expression by targeting its 3'-UTR. Overexpression of miR-412-5p in human umbilical vein endothelial cells (HUVECs) indicated that proliferation, migration and formation of vascular structures in HUVECs were inhibited in vitro. In addition, overexpression of miR-412-5p significantly inhibited Xpo1 expression and promoted upregulation of the p53 protein and its retention in the nucleus. Simultaneously, expression of p66SHC and p16 proteins was activated. In summary, downregulation of endogenous miR-412-5p expression in hemorrhoid vascular endothelial cells leads to high expression of the target gene Xpo1 and translocation of the p53 protein out of the nucleus, rendering it unable to activate p66SHC and p16. This ultimately weakens regulation of the vascular endothelial cell cycle, thereby accelerating the division of hemorrhoid vascular endothelial cells, leading to angiogenesis.
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Affiliation(s)
- Chen Wang
- Department of Anorectal Surgery, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Hong Lu
- Department of Anorectal Surgery, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Chunsheng Luo
- Department of Anorectal Surgery, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Chengkun Song
- Department of Anorectal Surgery, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Qingming Wang
- Department of Anorectal Surgery, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yunhua Peng
- Department of Anorectal Surgery, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yaojie Xin
- Department of Otolaryngology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Te Liu
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, China; Department of Pathology, Yale University School of Medicine, CT 06520, USA.
| | - Wei Yang
- Department of Anorectal Surgery, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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35
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Albiero M, Ciciliot S, Tedesco S, Menegazzo L, D'Anna M, Scattolini V, Cappellari R, Zuccolotto G, Rosato A, Cignarella A, Giorgio M, Avogaro A, Fadini GP. Diabetes-Associated Myelopoiesis Drives Stem Cell Mobilopathy Through an OSM-p66Shc Signaling Pathway. Diabetes 2019; 68:1303-1314. [PMID: 30936144 DOI: 10.2337/db19-0080] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 03/15/2019] [Indexed: 11/13/2022]
Abstract
Diabetes impairs the mobilization of hematopoietic stem/progenitor cells (HSPCs) from the bone marrow (BM), which can worsen the outcomes of HSPC transplantation and of diabetic complications. In this study, we examined the oncostatin M (OSM)-p66Shc pathway as a mechanistic link between HSPC mobilopathy and excessive myelopoiesis. We found that streptozotocin-induced diabetes in mice skewed hematopoiesis toward the myeloid lineage via hematopoietic-intrinsic p66Shc. The overexpression of Osm resulting from myelopoiesis prevented HSPC mobilization after granulocyte colony-stimulating factor (G-CSF) stimulation. The intimate link between myelopoiesis and impaired HSPC mobilization after G-CSF stimulation was confirmed in human diabetes. Using cross-transplantation experiments, we found that deletion of p66Shc in the hematopoietic or nonhematopoietic system partially rescued defective HSPC mobilization in diabetes. Additionally, p66Shc mediated the diabetes-induced BM microvasculature remodeling. Ubiquitous or hematopoietic restricted Osm deletion phenocopied p66Shc deletion in preventing diabetes-associated myelopoiesis and mobilopathy. Mechanistically, we discovered that OSM couples myelopoiesis to mobilopathy by inducing Cxcl12 in BM stromal cells via nonmitochondrial p66Shc. Altogether, these data indicate that cell-autonomous activation of the OSM-p66Shc pathway leads to diabetes-associated myelopoiesis, whereas its transcellular hematostromal activation links myelopoiesis to mobilopathy. Targeting the OSM-p66Shc pathway is a novel strategy to disconnect mobilopathy from myelopoiesis and restore normal HSPC mobilization.
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Affiliation(s)
- Mattia Albiero
- Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
- Department of Medicine-DIMED, University of Padova, Padova, Italy
| | | | - Serena Tedesco
- Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
- Department of Medicine-DIMED, University of Padova, Padova, Italy
| | - Lisa Menegazzo
- Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Marianna D'Anna
- Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
- Department of Medicine-DIMED, University of Padova, Padova, Italy
| | - Valentina Scattolini
- Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
- Department of Medicine-DIMED, University of Padova, Padova, Italy
| | - Roberta Cappellari
- Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
- Department of Medicine-DIMED, University of Padova, Padova, Italy
| | - Gaia Zuccolotto
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
- Istituto Oncologico Veneto (IOV)-IRCCS, Padova, Italy
| | - Antonio Rosato
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
- Istituto Oncologico Veneto (IOV)-IRCCS, Padova, Italy
| | | | - Marco Giorgio
- European Institute of Oncology (IEO), Milan, Italy
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Angelo Avogaro
- Department of Medicine-DIMED, University of Padova, Padova, Italy
| | - Gian Paolo Fadini
- Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
- Department of Medicine-DIMED, University of Padova, Padova, Italy
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Karunakaran U, Elumalai S, Moon JS, Won KC. CD36 dependent redoxosomes promotes ceramide-mediated pancreatic β-cell failure via p66Shc activation. Free Radic Biol Med 2019; 134:505-515. [PMID: 30735834 DOI: 10.1016/j.freeradbiomed.2019.02.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 02/01/2019] [Accepted: 02/04/2019] [Indexed: 12/14/2022]
Abstract
Altered metabolism is implicated in the pathogenesis of beta-cell failure in type 2 diabetes (T2D). Plasma and tissue levels of ceramide species play positive roles in inflammatory and oxidative stress responses in T2D. However, oxidative targets and mechanisms underlying ceramide signaling are unclear. We investigated the role of CD36-dependent redoxosome (redox-active endosome), a membrane-based signaling agent, in ceramide-induced beta-cell dysfunction and failure. Exposure of beta cells to C2-ceramide (N-acetyl-sphingosine) induced a CD36-dependent non-receptor tyrosine kinase Src-mediated redoxosome (Vav2-Rac1-NOX) formation. Activated Rac1-GTP-NADPH oxidase complex induced c-Jun-N-terminal kinase (JNK) activation and nuclear factor (NF)-kB transcription, which was associated with thioredoxin-interacting protein (TXNIP) upregulation and thioredoxin activity suppression. Upregulated JNK expression induced p66Shc serine36 phosphorylation and peroxiredoxin-3 hyperoxidation, causing beta-cell apoptosis via mitochondrial dysfunction. CD36 inhibition by sulfo-N-succinimidyl oleate (SSO) or CD36 siRNA blocked C2-ceramide-induced redoxosome activation, thereby decreasing JNK-dependent p66Shc serine36 phosphorylation. CD36 inhibition downregulated TXNIP expression and promoted thioredoxin activity via enhanced thioredoxin reductase activity, which prevented peroxiredoxin-3 oxidation. CD36 inhibition potentiated glucose-stimulated insulin secretion and prevented beta-cell apoptosis. Our results reveal a new role of CD36 during early molecular events that lead to Src-mediated redoxosome activation, which contributes to ceramide-induced pancreatic beta-cell dysfunction and failure.
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Affiliation(s)
- Udayakumar Karunakaran
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Suma Elumalai
- Institute of Medical Science, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Jun Sung Moon
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Kyu Chang Won
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea; Institute of Medical Science, Yeungnam University College of Medicine, Daegu, Republic of Korea.
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37
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Peng J, Pang J, Huang L, Enkhjargal B, Zhang T, Mo J, Wu P, Xu W, Zuo Y, Peng J, Zuo G, Chen L, Tang J, Zhang JH, Jiang Y. LRP1 activation attenuates white matter injury by modulating microglial polarization through Shc1/PI3K/Akt pathway after subarachnoid hemorrhage in rats. Redox Biol 2019; 21:101121. [PMID: 30703614 PMCID: PMC6351270 DOI: 10.1016/j.redox.2019.101121] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 01/18/2019] [Accepted: 01/22/2019] [Indexed: 12/21/2022] Open
Abstract
White matter injury (WMI) is associated with motor deficits and cognitive dysfunctions in subarachnoid hemorrhage (SAH) patients. Therapeutic strategy targeting WMI would likely improve the neurological outcomes after SAH. Low-density lipoprotein receptor-related protein-1 (LRP1), a scavenger receptor of apolipoprotein E (apoE), is able to modulate microglia polarization towards anti-inflammatory M2 phenotypes during inflammatory and oxidative insult. In the present study, we investigated the effects of LRP1 activation on WMI and underlying mechanisms of M2 microglial polarization in a rat model of SAH. Two hundred and seventeen male Sprague Dawley rats (weight 280-330 g) were used. SAH was induced by endovascular perforation. LPR1 ligand, apoE-mimic peptide COG1410 was administered intraperitoneally. Microglial depletion kit liposomal clodronate (CLP), LPR1 siRNA or PI3K inhibitor were administered intracerebroventricularly. Post-SAH assessments included neurobehavioral tests, brain water content, immunohistochemistry, Golgi staining, western blot and co-immunoprecipitation. SAH induced WMI shown as the accumulation of amyloid precursor protein and neurofilament heavy polypeptide as well as myelin loss. Microglial depletion by CLP significantly suppressed WMI after SAH. COG1410 reduced brain water content, increased the anti-inflammatory M2 microglial phenotypes, attenuated WMI and improved neurological function after SAH. LRP1 was bound with endogenous apoE and intracellular adaptor protein Shc1. The benefits of COG1410 were reversed by LPR1 siRNA or PI3K inhibitor. LRP1 activation attenuated WMI and improved neurological function by modulating M2 microglial polarization at least in part through Shc1/PI3K/Akt signaling in a rat model of SAH. The apoE-mimic peptide COG1410 may serve as a promising treatment in the management of SAH patients.
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Affiliation(s)
- Jianhua Peng
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China; Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Jinwei Pang
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China; Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Lei Huang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Budbazar Enkhjargal
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Tongyu Zhang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Jun Mo
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Pei Wu
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Weilin Xu
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Yuchun Zuo
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Jun Peng
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Gang Zuo
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Ligang Chen
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Jiping Tang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - John H Zhang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA; Department of Anesthesiology, Loma Linda University, Loma Linda, CA 92350, USA; Department of Neurosurgery, Loma Linda University, Loma Linda, CA 92350, USA.
| | - Yong Jiang
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China; Neurosurgery Clinical Medical Research Center of Sichuan Province, Luzhou, Sichuan 646000, China; Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan 646000, China.
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38
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Miller BS, Blumenthal SR, Shalygin A, Wright KD, Staruschenko A, Imig JD, Sorokin A. Inactivation of p66Shc Decreases Afferent Arteriolar K ATP Channel Activity and Decreases Renal Damage in Diabetic Dahl SS Rats. Diabetes 2018; 67:2206-2212. [PMID: 30131395 PMCID: PMC6198347 DOI: 10.2337/db18-0308] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 08/16/2018] [Indexed: 12/17/2022]
Abstract
Increased expression of adaptor protein p66Shc has been associated with progression of diabetic nephropathy. Afferent arteriolar dilation and glomerular hyperfiltration in diabetes are due to increased KATP channel availability and activity. Hyperglycemia was induced in Dahl salt-sensitive (SS) rats in a model of diabetes induced by streptozotocin (STZ). Renal injury was evaluated in SS rats and genetically modified SS rats either lacking p66Shc (p66Shc knockout [p66ShcKO]) or expressing p66Shc mutant (p66Shc-S36A). Afferent arteriolar diameter responses during STZ-induced hyperfiltration were determined by using the juxtamedullary nephron technique. Albuminuria and glomerular injury were mitigated in p66ShcKO and p66Shc-S36A rats with STZ-induced diabetes. SS rats with STZ-induced diabetes had significantly increased afferent arteriolar diameter, whereas p66ShcKO and p66Shc-S36A rats did not. SS rats with STZ-induced diabetes, but not p66ShcKO or p66Shc-S36A rats with STZ-induced diabetes, had an increased vasodilator response to the KATP channel activator pinacidil. Likewise, the KATP inhibitor glibenclamide resulted in a greater decrease in afferent arteriolar diameter in SS rats with STZ-induced diabetes than in STZ-treated SS p66ShcKO and p66Shc-S36A rats. Using patch-clamp electrophysiology, we demonstrated that p66ShcKO decreases KATP channel activity. These results indicate that inactivation of the adaptor protein p66Shc decreases afferent arteriolar KATP channel activity and decreases renal damage in diabetic SS rats.
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Affiliation(s)
- Bradley S Miller
- Department of Medicine, Division of Nephrology, Medical College of Wisconsin, Milwaukee, WI
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI
| | - Shoshana R Blumenthal
- Department of Medicine, Division of Nephrology, Medical College of Wisconsin, Milwaukee, WI
| | - Alexey Shalygin
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI
- Institute of Cytology of the Russian Academy of Sciences, St. Petersburg, Russia
| | - Kevin D Wright
- Department of Medicine, Division of Nephrology, Medical College of Wisconsin, Milwaukee, WI
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI
| | - Alexander Staruschenko
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI
| | - John D Imig
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI
| | - Andrey Sorokin
- Department of Medicine, Division of Nephrology, Medical College of Wisconsin, Milwaukee, WI
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI
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39
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Qu B, Gong K, Yang H, Li Y, Jiang T, Zeng Z, Cao Z, Pan X. SIRT1 suppresses high glucose and palmitate-induced osteoclast differentiation via deacetylating p66Shc. Mol Cell Endocrinol 2018; 474:97-104. [PMID: 29486220 DOI: 10.1016/j.mce.2018.02.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 01/31/2018] [Accepted: 02/23/2018] [Indexed: 01/11/2023]
Abstract
Findings concerning the role of diabetes mellitus (DM) in osteoclast differentiation are contradictory in vivo and in vitro. Sirtuin 1 (SIRT1) can inhibit RANKL-induced osteoclastogenesis and deacetylate p66Shc suppress its phosphorylation in high glucose (HG)-stimulated human umbilical vein endothelial cells. This study aimed to investigate the role and mechanism of SIRT1 in DM-related osteoclast differentiation. Osteoclast precursors were cultured with HG and palmitate (PA), with or without resveratrol/sirtinol. TRAP staining was used to evaluate osteoclast formation. The expression of SIRT1, RANK, RANKL, OPG, NFATc1, TRAP, c-fos, p66Shc, phospho-p66Shc (S36), phospho-NF-κBp65 (p-p65), and IκB was determined by real-time PCR or western blotting. Lysine acetylation of p66Shc was assayed by immunoprecipitation. Reactive oxygen species (ROS) production was analyzed by DCFH-DA fluorescence. p66Shc siRNA and PDTC were used to confirm the mechanism of SIRT1 in osteoclastogenesis. We found HG and PA enhanced osteoclast differentiation, decreased SIRT1 and OPG expression, and increased levels of RANK, RANKL, NFATc1, TRAP, and c-fos. Upregulation of SIRT1 by resveratrol inhibited HG- and PA-induced osteoclast differentiation, whereas sirtinol further enhanced it. Resveratrol suppressed lysine acetylation and S36 phosphorylation of p66Shc, ROS production, and NF-κB activation induced by HG and PA, while sirtinol boosted these processes. p66Shc siRNA abrogated HG- and PA-induced ROS production and NF-κB activation. In addition, p66Shc siRNA and PDTC greatly suppressed the expression of RANK and RANKL induced by HG and PA. In conclusion, this study confirms the role of DM in osteoclast differentiation in vitro. SIRT1 suppresses HG- and PA-induced osteoclast differentiation via p66Shc/ROS/NF-κB signaling.
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Affiliation(s)
- Bo Qu
- Department of Orthopaedics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, Sichuan Province, China; Center for Disease Control and Prevention of the Chengdu Military Command, Chengdu 610000, Sichuan Province, China
| | - Kai Gong
- Department of Orthopaedics, Chengdu Military General Hospital, Chengdu 610000, Sichuan Province, China
| | - Hongsheng Yang
- Department of Orthopaedics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, Sichuan Province, China
| | - Yugang Li
- Department of Orthopaedics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, Sichuan Province, China
| | - Tao Jiang
- Department of Orthopaedics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, Sichuan Province, China
| | - Zhimou Zeng
- Department of Orthopaedics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, Sichuan Province, China
| | - Zongrui Cao
- Department of Orthopaedics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, Sichuan Province, China
| | - Xianming Pan
- Department of Orthopaedics, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610000, Sichuan Province, China.
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40
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Pérez H, Finocchietto PV, Alippe Y, Rebagliati I, Elguero ME, Villalba N, Poderoso JJ, Carreras MC. p66 Shc Inactivation Modifies RNS Production, Regulates Sirt3 Activity, and Improves Mitochondrial Homeostasis, Delaying the Aging Process in Mouse Brain. Oxid Med Cell Longev 2018; 2018:8561892. [PMID: 29721150 PMCID: PMC5867558 DOI: 10.1155/2018/8561892] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 01/17/2018] [Indexed: 01/17/2023]
Abstract
Programmed and damage aging theories have traditionally been conceived as stand-alone schools of thought. However, the p66Shc adaptor protein has demonstrated that aging-regulating genes and reactive oxygen species (ROS) are closely interconnected, since its absence modifies metabolic homeostasis by providing oxidative stress resistance and promoting longevity. p66Shc(-/-) mice are a unique opportunity to further comprehend the bidirectional relationship between redox homeostasis and the imbalance of mitochondrial biogenesis and dynamics during aging. This study shows that brain mitochondria of p66Shc(-/-) aged mice exhibit a reduced alteration of redox balance with a decrease in both ROS generation and its detoxification activity. We also demonstrate a strong link between reactive nitrogen species (RNS) and mitochondrial function, morphology, and biogenesis, where low levels of ONOO- formation present in aged p66Shc(-/-) mouse brain prevent protein nitration, delaying the loss of biological functions characteristic of the aging process. Sirt3 modulates age-associated mitochondrial biology and function via lysine deacetylation of target proteins, and we show that its regulation depends on its nitration status and is benefited by the improved NAD+/NADH ratio in aged p66Shc(-/-) brain mitochondria. Low levels of protein nitration and acetylation could cause the metabolic homeostasis maintenance observed during aging in this group, thus increasing its lifespan.
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Affiliation(s)
- Hernán Pérez
- Laboratory of Oxygen Metabolism, INIGEM-UBA-CONICET, Buenos Aires, Argentina
| | - Paola Vanesa Finocchietto
- Laboratory of Oxygen Metabolism, INIGEM-UBA-CONICET, Buenos Aires, Argentina
- Departamento de Medicina, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Yael Alippe
- Laboratory of Oxygen Metabolism, INIGEM-UBA-CONICET, Buenos Aires, Argentina
| | - Inés Rebagliati
- Laboratory of Oxygen Metabolism, INIGEM-UBA-CONICET, Buenos Aires, Argentina
| | | | - Nerina Villalba
- Laboratory of Oxygen Metabolism, INIGEM-UBA-CONICET, Buenos Aires, Argentina
| | - Juan José Poderoso
- Laboratory of Oxygen Metabolism, INIGEM-UBA-CONICET, Buenos Aires, Argentina
| | - María Cecilia Carreras
- Laboratory of Oxygen Metabolism, INIGEM-UBA-CONICET, Buenos Aires, Argentina
- Departamento de Bioquímica Clínica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
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Ha JR, Ahn R, Smith HW, Sabourin V, Hébert S, Cepeda Cañedo E, Im YK, Kleinman CL, Muller WJ, Ursini-Siegel J. Integration of Distinct ShcA Signaling Complexes Promotes Breast Tumor Growth and Tyrosine Kinase Inhibitor Resistance. Mol Cancer Res 2018; 16:894-908. [PMID: 29453318 DOI: 10.1158/1541-7786.mcr-17-0623] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 12/20/2017] [Accepted: 01/26/2018] [Indexed: 11/16/2022]
Abstract
The commonality between most phospho-tyrosine signaling networks is their shared use of adaptor proteins to transduce mitogenic signals. ShcA (SHC1) is one such adaptor protein that employs two phospho-tyrosine binding domains (PTB and SH2) and key phospho-tyrosine residues to promote mammary tumorigenesis. Receptor tyrosine kinases (RTK), such as ErbB2, bind the ShcA PTB domain to promote breast tumorigenesis by engaging Grb2 downstream of the ShcA tyrosine phosphorylation sites to activate AKT/mTOR signaling. However, breast tumors also rely on the ShcA PTB domain to bind numerous negative regulators that limit activation of secondary mitogenic signaling networks. This study examines the role of PTB-independent ShcA pools in controlling breast tumor growth and resistance to tyrosine kinase inhibitors. We demonstrate that PTB-independent ShcA complexes predominately rely on the ShcA SH2 domain to activate multiple Src family kinases (SFK), including Src and Fyn, in ErbB2-positive breast cancers. Using genetic and pharmacologic approaches, we show that PTB-independent ShcA complexes augment mammary tumorigenesis by increasing the activity of the Src and Fyn tyrosine kinases in an SH2-dependent manner. This bifurcation of signaling complexes from distinct ShcA pools transduces non-redundant signals that integrate the AKT/mTOR and SFK pathways to cooperatively increase breast tumor growth and resistance to tyrosine kinase inhibitors, including lapatinib and PP2. This study mechanistically dissects how the interplay between diverse intracellular ShcA complexes impacts the tyrosine kinome to affect breast tumorigenesis.Implications: The ShcA adaptor, within distinct signaling complexes, impacts tyrosine kinase signaling, breast tumor growth, and resistance to tyrosine kinase inhibitors. Mol Cancer Res; 16(5); 894-908. ©2018 AACR.
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Affiliation(s)
- Jacqueline R Ha
- Lady Davis Institute for Medical Research, Montréal, Quebec, Canada
- Division of Experimental Medicine, McGill University, Montréal, Quebec, Canada
| | - Ryuhjin Ahn
- Lady Davis Institute for Medical Research, Montréal, Quebec, Canada
- Division of Experimental Medicine, McGill University, Montréal, Quebec, Canada
| | - Harvey W Smith
- Department of Biochemistry, McIntyre Medical Building, McGill University, Montréal, Quebec, Canada
- Goodman Cancer Research Centre, Montréal, Quebec, Canada
| | - Valerie Sabourin
- Lady Davis Institute for Medical Research, Montréal, Quebec, Canada
| | - Steven Hébert
- Lady Davis Institute for Medical Research, Montréal, Quebec, Canada
| | - Eduardo Cepeda Cañedo
- Lady Davis Institute for Medical Research, Montréal, Quebec, Canada
- Division of Experimental Medicine, McGill University, Montréal, Quebec, Canada
| | - Young Kyuen Im
- Lady Davis Institute for Medical Research, Montréal, Quebec, Canada
- Division of Experimental Medicine, McGill University, Montréal, Quebec, Canada
| | - Claudia L Kleinman
- Lady Davis Institute for Medical Research, Montréal, Quebec, Canada
- Department of Human Genetics, Strathcona Anatomy & Dentistry Building, McGill University, Montréal, Quebec, Canada
| | - William J Muller
- Department of Biochemistry, McIntyre Medical Building, McGill University, Montréal, Quebec, Canada
- Department of Human Genetics, Strathcona Anatomy & Dentistry Building, McGill University, Montréal, Quebec, Canada
| | - Josie Ursini-Siegel
- Lady Davis Institute for Medical Research, Montréal, Quebec, Canada.
- Division of Experimental Medicine, McGill University, Montréal, Quebec, Canada
- Department of Biochemistry, McIntyre Medical Building, McGill University, Montréal, Quebec, Canada
- Goodman Cancer Research Centre, Montréal, Quebec, Canada
- Gerald Bronfman Department of Oncology, McGill University, Montréal, Quebec, Canada
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Suen KM, Lin CC, Seiler C, George R, Poncet-Montange G, Biter AB, Ahmed Z, Arold ST, Ladbury JE. Phosphorylation of threonine residues on Shc promotes ligand binding and mediates crosstalk between MAPK and Akt pathways in breast cancer cells. Int J Biochem Cell Biol 2018; 94:89-97. [PMID: 29208567 DOI: 10.1016/j.biocel.2017.11.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 11/16/2017] [Accepted: 11/30/2017] [Indexed: 01/14/2023]
Abstract
Scaffold proteins play important roles in regulating signalling network fidelity, the absence of which is often the basis for diseases such as cancer. In the present work, we show that the prototypical scaffold protein Shc is phosphorylated by the extracellular signal-regulated kinase, Erk. In addition, Shc threonine phosphorylation is specifically up-regulated in two selected triple-negative breast cancer (TNBC) cell lines. To explore how Erk-mediated threonine phosphorylation on Shc might play a role in the dysregulation of signalling events, we investigated how Shc affects pathways downstream of EGF receptor. Using an in vitro model and biophysical analysis, we show that Shc threonine phosphorylation is responsible for elevated Akt and Erk signalling, potentially through the recruitment of the 14-3-3 ζ and Pin-1 proteins.
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Affiliation(s)
- K M Suen
- Department of Biochemistry and Molecular Biology, The University of Texas MD Anderson Cancer Center, Unit 1954, 1515 Holcombe Blvd, Houston, TX 77030, USA; Graduate School of Biological Sciences, The University of Texas MD Anderson Cancer Center, Unit 1954, 1515 Holcombe Blvd, Houston, TX 77030, USA
| | - C C Lin
- School of Molecular and Cellular Biology, University of Leeds, LC Miall Building, Leeds, LS2 9JT, UK
| | - C Seiler
- School of Molecular and Cellular Biology, University of Leeds, LC Miall Building, Leeds, LS2 9JT, UK
| | - R George
- Structural Biology STP, The Francis Crick Institute, Lincolns Inn Fields Laboratory, 44 Lincolns Inn Fields, Holborn, London, WC2A 3LY, UK
| | - G Poncet-Montange
- Orthogon Therapeutics, 960 Turnpike Street, Unit 10, Canton, MA 02021, USA
| | - A B Biter
- Sabin Vaccine Institute and Texas Children's Hospital Center for Vaccine Development, 1102 Bates Avenue, Houston, TX 77030, USA
| | - Z Ahmed
- Department of Biochemistry and Molecular Biology, The University of Texas MD Anderson Cancer Center, Unit 1954, 1515 Holcombe Blvd, Houston, TX 77030, USA
| | - S T Arold
- Division of Biological and Environmental Sciences and Engineering, CBRC, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - J E Ladbury
- School of Molecular and Cellular Biology, University of Leeds, LC Miall Building, Leeds, LS2 9JT, UK.
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Costantino S, Paneni F, Battista R, Castello L, Capretti G, Chiandotto S, Tanese L, Russo G, Pitocco D, Lanza GA, Volpe M, Lüscher TF, Cosentino F. Impact of Glycemic Variability on Chromatin Remodeling, Oxidative Stress, and Endothelial Dysfunction in Patients With Type 2 Diabetes and With Target HbA 1c Levels. Diabetes 2017. [PMID: 28634176 DOI: 10.2337/db17-0294] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Intensive glycemic control (IGC) targeting HbA1c fails to show an unequivocal reduction of macrovascular complications in type 2 diabetes (T2D); however, the underlying mechanisms remain elusive. Epigenetic changes are emerging as important mediators of cardiovascular damage and may play a role in this setting. This study investigated whether epigenetic regulation of the adaptor protein p66Shc, a key driver of mitochondrial oxidative stress, contributes to persistent vascular dysfunction in patients with T2D despite IGC. Thirty-nine patients with uncontrolled T2D (HbA1c >7.5%) and 24 age- and sex-matched healthy control subjects were consecutively enrolled. IGC was implemented for 6 months in patients with T2D to achieve a target HbA1c of ≤7.0%. Brachial artery flow-mediated dilation (FMD), urinary 8-isoprostaglandin F2α (8-isoPGF2α), and epigenetic regulation of p66Shc were assessed at baseline and follow-up. Continuous glucose monitoring was performed to determine the mean amplitude of glycemic excursion (MAGE) and postprandial incremental area under the curve (AUCpp). At baseline, patients with T2D showed impaired FMD, increased urinary 8-isoPGF2α, and p66Shc upregulation in circulating monocytes compared with control subjects. FMD, 8-isoPGF2α, and p66Shc expression were not affected by IGC. DNA hypomethylation and histone 3 acetylation were found on the p66Shc promoter of patients with T2D, and IGC did not change such adverse epigenetic remodeling. Persistent downregulation of methyltransferase DNMT3b and deacetylase SIRT1 may explain the observed p66Shc-related epigenetic changes. MAGE and AUCpp but not HbA1c were independently associated with the altered epigenetic profile on the p66Shc promoter. Hence, glucose fluctuations contribute to chromatin remodeling and may explain persistent vascular dysfunction in patients with T2D with target HbA1c levels.
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Affiliation(s)
- Sarah Costantino
- Cardiology Unit, Department of Medicine, Solna, Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Cardiology, University of Zurich, and University Heart Center, Department of Cardiology, University Hospital Zurich, Zurich, Switzerland
| | - Francesco Paneni
- Cardiology Unit, Department of Medicine, Solna, Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Cardiology, University of Zurich, and University Heart Center, Department of Cardiology, University Hospital Zurich, Zurich, Switzerland
| | | | - Lorenzo Castello
- Cardiology, Department of Clinical and Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Giuliana Capretti
- Cardiology, Department of Clinical and Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Sergio Chiandotto
- Cardiology, Department of Clinical and Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Luigi Tanese
- Diabetes Care Unit, Internal Medicine, Catholic University, Rome, Italy
| | - Giulio Russo
- Department of Cardiovascular Sciences, Catholic University, Rome, Italy
| | - Dario Pitocco
- Diabetes Care Unit, Internal Medicine, Catholic University, Rome, Italy
| | - Gaetano A Lanza
- Department of Cardiovascular Sciences, Catholic University, Rome, Italy
| | - Massimo Volpe
- Cardiology, Department of Clinical and Molecular Medicine, Sapienza University of Rome, Rome, Italy
- IRCCS Neuromed, Pozzilli (IS), Italy
| | - Thomas F Lüscher
- Center for Molecular Cardiology, University of Zurich, and University Heart Center, Department of Cardiology, University Hospital Zurich, Zurich, Switzerland
| | - Francesco Cosentino
- Cardiology Unit, Department of Medicine, Solna, Karolinska University Hospital, Stockholm, Sweden
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Krochmal M, Cisek K, Filip S, Markoska K, Orange C, Zoidakis J, Gakiopoulou C, Spasovski G, Mischak H, Delles C, Vlahou A, Jankowski J. Identification of novel molecular signatures of IgA nephropathy through an integrative -omics analysis. Sci Rep 2017; 7:9091. [PMID: 28831120 PMCID: PMC5567309 DOI: 10.1038/s41598-017-09393-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 07/26/2017] [Indexed: 12/19/2022] Open
Abstract
IgA nephropathy (IgAN) is the most prevalent among primary glomerular diseases worldwide. Although our understanding of IgAN has advanced significantly, its underlying biology and potential drug targets are still unexplored. We investigated a combinatorial approach for the analysis of IgAN-relevant -omics data, aiming at identification of novel molecular signatures of the disease. Nine published urinary proteomics datasets were collected and the reported differentially expressed proteins in IgAN vs. healthy controls were integrated into known biological pathways. Proteins participating in these pathways were subjected to multi-step assessment, including investigation of IgAN transcriptomics datasets (Nephroseq database), their reported protein-protein interactions (STRING database), kidney tissue expression (Human Protein Atlas) and literature mining. Through this process, from an initial dataset of 232 proteins significantly associated with IgAN, 20 pathways were predicted, yielding 657 proteins for further analysis. Step-wise evaluation highlighted 20 proteins of possibly high relevance to IgAN and/or kidney disease. Experimental validation of 3 predicted relevant proteins, adenylyl cyclase-associated protein 1 (CAP1), SHC-transforming protein 1 (SHC1) and prolylcarboxypeptidase (PRCP) was performed by immunostaining of human kidney sections. Collectively, this study presents an integrative procedure for -omics data exploitation, giving rise to biologically relevant results.
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Affiliation(s)
- Magdalena Krochmal
- Biomedical Research Foundation Academy of Athens, Center of Basic Research, Athens, Greece
- RWTH Aachen University Hospital, Institute for Molecular Cardiovascular Research, Aachen, Germany
| | | | - Szymon Filip
- Biomedical Research Foundation Academy of Athens, Center of Basic Research, Athens, Greece
| | - Katerina Markoska
- Department of Nephrology, Medical Faculty, University of Skopje, Skopje, Macedonia
| | - Clare Orange
- Department of Pathology, School of Medicine, University of Glasgow, Glasgow, UK
| | - Jerome Zoidakis
- Biomedical Research Foundation Academy of Athens, Center of Basic Research, Athens, Greece
| | - Chara Gakiopoulou
- Pathology Department, National and Kapodistrian University of Athens, Athens, Greece
| | - Goce Spasovski
- Department of Nephrology, Medical Faculty, University of Skopje, Skopje, Macedonia
| | - Harald Mischak
- Mosaiques Diagnostics GmbH, Hannover, Germany
- University of Glasgow, Institute of Cardiovascular and Medical Sciences, Glasgow, UK
| | - Christian Delles
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, University of Glasgow, 126 University Place, Glasgow, G12 8TA, UK
| | - Antonia Vlahou
- Biomedical Research Foundation Academy of Athens, Center of Basic Research, Athens, Greece.
| | - Joachim Jankowski
- RWTH Aachen University Hospital, Institute for Molecular Cardiovascular Research, Aachen, Germany.
- University of Maastricht, CARIM School for Cardiovascular Diseases, Maastricht, Netherlands.
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45
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van der Meulen T, Swarts S, Fischer W, van der Geer P. Identification of STS-1 as a novel ShcA-binding protein. Biochem Biophys Res Commun 2017; 490:1334-1339. [PMID: 28690151 DOI: 10.1016/j.bbrc.2017.07.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 07/05/2017] [Indexed: 11/19/2022]
Abstract
ShcA is a cytoplasmic signaling protein that supports signal transduction by receptor protein-tyrosine kinases by providing auxiliary tyrosine phosphorylation sites that engage additional signaling proteins. The principal binding partner for tyrosine phosphorylation sites on ShcA is Grb2. In the current study, we have used phosphotyrosine-containing peptides to isolate and identify STS-1 as a novel ShcA-binding protein. Our results further show that the interaction between STS-1 and ShcA is regulated in response to EGF receptor activation.
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Affiliation(s)
- Talitha van der Meulen
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182-1030, USA
| | - Spencer Swarts
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182-1030, USA
| | - Wolfgang Fischer
- Clayton Foundation Laboratories for Peptide Biology, The Salk Institute, 10010 North Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Peter van der Geer
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182-1030, USA.
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Ma LY, Xie XW, Ma L, Pang JL, Xiong XM, Zheng HD, Shen XL, Wen ZG, Wang HY. Downregulated long non-coding RNA TRPM2-AS inhibits cisplatin resistance of non-small cell lung cancer cells via activation of p53- p66shc pathway. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2017; 21:2626-2634. [PMID: 28678322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE Non-small cell lung cancer (NSCLC), as an ordinary malignant tumor, presents with high death rate and poor prognosis. Few literatures have explored the association between NSCLC development and lncRNAs expression. This study focuses on the important role of a novel lncRNA TRPM2-AS in the development of chemo-resistance in NSCLC. MATERIALS AND METHODS The expression level of lncRNA TRPM2-AS was identified by using qRT-PCR assay. The apoptosis rate and the alteration of the cell cycle were detected by the flow cytometric analysis. Cell Counting Kit-8 assay (CCK8) was utilized for detecting chemo-sensitivity of the cisplatin-resistant A549/DDP cells. The p53 and p66shc protein levels were detected by Western blotting assay. RESULTS A549/DDP cells presented remarkably higher expression of lncRNA TRPM2-AS than paired A549 cells. Moreover, re-sensitization to cisplatin was seen in A549/DDP cells after lncRNA TRPM2-AS knockdown. On the contrary, the sensitivity of lncRNA TRPM2-AS-overexpressed A549 cells to cisplatin decreased obviously when compared with the control. Furthermore, downregulated lncRNA TRPM2-AS induced cell apoptosis and altered cell cycle distribution through activating the p53-p66shc pathway. CONCLUSIONS We suggest that lncRNA TRPM2-AS participates in the resistance of NSCLC cells to cisplatin, which may provide a new therapeutic target of NSCLC.
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Affiliation(s)
- L-Y Ma
- Respiratory Department, The First Affiliated Hospital of Chinese PLA General Hospital, Beijing, China.
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47
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Dean M, Lassak A, Wilk A, Zapata A, Marrero L, Molina P, Reiss K. Acute Ethanol Increases IGF-I-Induced Phosphorylation of ERKs by Enhancing Recruitment of p52-Shc to the Grb2/Shc Complex. J Cell Physiol 2017; 232:1275-1286. [PMID: 27607558 PMCID: PMC5381968 DOI: 10.1002/jcp.25586] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 09/06/2016] [Indexed: 12/13/2022]
Abstract
Ethanol plays a detrimental role in the development of the brain. Multiple studies have shown that ethanol inhibits insulin-like growth factor I receptor (IGF-IR) function. Because the IGF-IR contributes to brain development by supporting neural growth, survival, and differentiation, we sought to determine the molecular mechanism(s) involved in ethanol's effects on this membrane-associated tyrosine kinase. Using multiple neuronal cell types, we performed Western blot, immunoprecipitation, and GST-pulldowns following acute (1-24 h) or chronic (3 weeks) treatment with ethanol. Surprisingly, exposure of multiple neuronal cell types to acute (up to 24 h) ethanol (50 mM) enhanced IGF-I-induced phosphorylation of extracellular regulated kinases (ERKs), without affecting IGF-IR tyrosine phosphorylation itself, or Akt phosphorylation. This acute increase in ERKs phosphorylation was followed by the expected inhibition of the IGF-IR signaling following 3-week ethanol exposure. We then expressed a GFP-tagged IGF-IR construct in PC12 cells and used them to perform fluorescence recovery after photobleaching (FRAP) analysis. Using these fluorescently labeled cells, we determined that 50 mM ethanol decreased the half-time of the IGF-IR-associated FRAP, which implied that cell membrane-associated signaling events could be affected. Indeed, co-immunoprecipitation and GST-pulldown studies demonstrated that the acute ethanol exposure increased the recruitment of p52-Shc to the Grb2-Shc complex, which is known to engage the Ras-Raf-ERKs pathway following IGF-1 stimulation. These experiments indicate that even a short and low-dose exposure to ethanol may dysregulate function of the receptor, which plays a critical role in brain development. J. Cell. Physiol. 232: 1275-1286, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Matthew Dean
- Alcohol and Drug Abuse Center of Excellence, Department of Physiology, LSU Health New Orleans, New Orleans, LA, 70112
- Department of Genetics, LSU Health New Orleans
- Stanley S. Scott Cancer Center, LSU Health New Orleans
| | - Adam Lassak
- Stanley S. Scott Cancer Center, LSU Health New Orleans
| | - Anna Wilk
- University of South Alabama Mitchell Cancer Institute, Mobile, AL, 36604
| | | | - Luis Marrero
- Morphology and Imaging Core, LSU Health New Orleans
| | - Patricia Molina
- Alcohol and Drug Abuse Center of Excellence, Department of Physiology, LSU Health New Orleans, New Orleans, LA, 70112
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Xiong Y, Liu T, Wang S, Chi H, Chen C, Zheng J. Cyclophosphamide promotes the proliferation inhibition of mouse ovarian granulosa cells and premature ovarian failure by activating the lncRNA-Meg3-p53-p66Shc pathway. Gene 2016; 596:1-8. [PMID: 27729272 DOI: 10.1016/j.gene.2016.10.011] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 09/26/2016] [Accepted: 10/06/2016] [Indexed: 01/05/2023]
Abstract
The dysfunction of ovarian granulosa cells (OGCs) directly affects the premature ovarian failure (POF). In vivo experiments showed that cyclophosphamide significantly induced mouse ovarian atrophy and proliferation inhibition of OGCs. The expressions of p53, p66Shc and p16 were significantly higher in OGCs of the cyclophosphamide treatment group. MTT assay showed that cyclophosphamide effectively inhibited the proliferation of OGCs in vitro. SA-β-Gal staining showed that the OGCs in the cyclophosphamide treatment group had many senescent cells. And, the expression of p53, p66Shc, p16 and cleaved caspase-3 in the OGCs of the cyclophosphamide treatment group significant increases. The Northern blot showed that the intensity of the lncRNA-Meg3 hybridization signal of the OGCs in the cyclophosphamide treatment group was significantly higher than that in the control group. ChIP results confirmed the significant increase in the obtained p66Shc promoter DNA fragment, which was enriched on p53 protein, in the OGCs treated with cyclophosphamide. When cyclophosphamide treatment was conducted after siRNA-Meg3 was used, the expression of endogenous lncRNA-Meg3, p53, p66Shc, p16 and cleaved caspase-3 was significantly lower than that in the siRNA-Mock control group. In summary, cyclophosphamide promotes the proliferation inhibition of mouse OGCs and premature ovarian failure by activating the lncRNA-Meg3-p53-p66Shc pathway.
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Affiliation(s)
- Ying Xiong
- Department of Gynaecology and Obstetrics, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Te Liu
- Shanghai Geriatric Institute of Chinese Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, China; Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, China; Department of Pathology, Yale University School of Medicine, CT 06520, USA.
| | - Suwei Wang
- Shanghai Geriatric Institute of Chinese Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, China
| | - Huiying Chi
- Shanghai Geriatric Institute of Chinese Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, China
| | - Chuan Chen
- Shanghai Geriatric Institute of Chinese Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, China.
| | - Jin Zheng
- Gynecology of Traditional Chinese Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, China.
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Komninou ER, Remião MH, Lucas CG, Domingues WB, Basso AC, Jornada DS, Deschamps JC, Beck RCR, Pohlmann AR, Bordignon V, Seixas FK, Campos VF, Guterres SS, Collares T. Effects of Two Types of Melatonin-Loaded Nanocapsules with Distinct Supramolecular Structures: Polymeric (NC) and Lipid-Core Nanocapsules (LNC) on Bovine Embryo Culture Model. PLoS One 2016; 11:e0157561. [PMID: 27310006 PMCID: PMC4910990 DOI: 10.1371/journal.pone.0157561] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 06/01/2016] [Indexed: 12/14/2022] Open
Abstract
Melatonin has been used as a supplement in culture medium to improve the efficiency of in vitro produced mammalian embryos. Through its ability to scavenge toxic oxygen derivatives and regulate cellular mRNA levels for antioxidant enzymes, this molecule has been shown to play a protective role against damage by free radicals, to which in vitro cultured embryos are exposed during early development. In vivo and in vitro studies have been performed showing that the use of nanocapsules as active substances carriers increases stability, bioavailability and biodistribution of drugs, such as melatonin, to the cells and tissues, improving their antioxidant properties. These properties can be modulated through the manipulation of formula composition, especially in relation to the supramolecular structures of the nanocapsule core and the surface area that greatly influences drug release mechanisms in biological environments. This study aimed to evaluate the effects of two types of melatonin-loaded nanocapsules with distinct supramolecular structures, polymeric (NC) and lipid-core (LNC) nanocapsules, on in vitro cultured bovine embryos. Embryonic development, apoptosis, reactive oxygen species (ROS) production, and mRNA levels of genes involved in cell apoptosis, ROS and cell pluripotency were evaluated after supplementation of culture medium with non-encapsulated melatonin (Mel), melatonin-loaded polymeric nanocapsules (Mel-NC) and melatonin-loaded lipid-core nanocapsules (Mel-LNC) at 10−6, 10−9, and 10−12 M drug concentrations. The highest hatching rate was observed in embryos treated with 10−9 M Mel-LNC. When compared to Mel and Mel-NC treatments at the same concentration (10−9 M), Mel-LNC increased embryo cell number, decreased cell apoptosis and ROS levels, down-regulated mRNA levels of BAX, CASP3, and SHC1 genes, and up-regulated mRNA levels of CAT and SOD2 genes. These findings indicate that nanoencapsulation with LNC increases the protective effects of melatonin against oxidative stress and cell apoptosis during in vitro embryo culture in bovine species.
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Affiliation(s)
- Eliza Rossi Komninou
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010–900, RS, Brazil
| | - Mariana Härter Remião
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010–900, RS, Brazil
| | - Caroline Gomes Lucas
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010–900, RS, Brazil
| | - William Borges Domingues
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010–900, RS, Brazil
| | | | - Denise Soledade Jornada
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610–000, RS, Brazil
| | - João Carlos Deschamps
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010–900, RS, Brazil
| | - Ruy Carlos Ruver Beck
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610–000, RS, Brazil
| | - Adriana Raffin Pohlmann
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91501–970, RS, Brazil
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Sainte Anne de Bellevue, H9X 3V9, QC, Canada
| | - Fabiana Kömmling Seixas
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010–900, RS, Brazil
| | - Vinicius Farias Campos
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010–900, RS, Brazil
| | - Silvia Stanisçuaski Guterres
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610–000, RS, Brazil
- * E-mail: (SSG); (TC)
| | - Tiago Collares
- Programa de Pós-Graduação em Biotecnologia (PPGB), Grupo de Pesquisa em Oncologia Celular e Molecular, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, 96010–900, RS, Brazil
- * E-mail: (SSG); (TC)
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Miller B, Palygin O, Rufanova VA, Chong A, Lazar J, Jacob HJ, Mattson D, Roman RJ, Williams JM, Cowley AW, Geurts AM, Staruschenko A, Imig JD, Sorokin A. p66Shc regulates renal vascular tone in hypertension-induced nephropathy. J Clin Invest 2016; 126:2533-46. [PMID: 27270176 DOI: 10.1172/jci75079] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Accepted: 04/19/2016] [Indexed: 11/17/2022] Open
Abstract
Renal preglomerular arterioles regulate vascular tone to ensure a large pressure gradient over short distances, a function that is extremely important for maintaining renal microcirculation. Regulation of renal microvascular tone is impaired in salt-sensitive (SS) hypertension-induced nephropathy, but the molecular mechanisms contributing to this impairment remain elusive. Here, we assessed the contribution of the SH2 adaptor protein p66Shc (encoded by Shc1) in regulating renal vascular tone and the development of renal vascular dysfunction associated with hypertension-induced nephropathy. We generated a panel of mutant rat strains in which specific modifications of Shc1 were introduced into the Dahl SS rats. In SS rats, overexpression of p66Shc was linked to increased renal damage. Conversely, deletion of p66Shc from these rats restored the myogenic responsiveness of renal preglomerular arterioles ex vivo and promoted cellular contraction in primary vascular smooth muscle cells (SMCs) that were isolated from renal vessels. In primary SMCs, p66Shc restricted the activation of transient receptor potential cation channels to attenuate cytosolic Ca2+ influx, implicating a mechanism by which overexpression of p66Shc impairs renal vascular reactivity. These results establish the adaptor protein p66Shc as a regulator of renal vascular tone and a driver of impaired renal vascular function in hypertension-induced nephropathy.
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MESH Headings
- Albumins/analysis
- Animals
- Arterioles/physiopathology
- Blood Pressure
- Calcium/metabolism
- Hypertension/physiopathology
- Hypertension, Renal/metabolism
- Hypertension, Renal/physiopathology
- Kidney/blood supply
- Kidney/physiopathology
- Kidney Glomerulus/metabolism
- Male
- Microcirculation
- Muscle, Smooth, Vascular/physiopathology
- Nephritis/metabolism
- Nephritis/physiopathology
- Promoter Regions, Genetic
- Rats
- Rats, Inbred BN
- Rats, Inbred Dahl
- Rats, Inbred WKY
- Rats, Transgenic
- Species Specificity
- Src Homology 2 Domain-Containing, Transforming Protein 1/metabolism
- Vasoconstriction
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