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Sidhanth C, Bindhya S, Krishnapriya S, Manasa P, Shabna A, Alifia J, Patole C, Kumar V, Garg M, Ganesan TS. Phosphoproteome of signaling by ErbB2 in ovarian cancer cells. BIOCHIMICA ET BIOPHYSICA ACTA. PROTEINS AND PROTEOMICS 2022; 1870:140768. [PMID: 35158093 DOI: 10.1016/j.bbapap.2022.140768] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/07/2022] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
The gene for receptor tyrosine kinase ErbB2 is amplified in breast and ovarian tumours. The linear pathway by which signals are transduced through ErbB2 are well known. However, second generation questions that address spatial aspects of signaling remain. To address this, we have undertaken a mass spectrometry approach to identify phosphoproteins specific for ErbB2 using the inhibitors Lapatinib and CP724714 in ovarian cancer cells. The ErbB2 specific proteins identified in SKOV-3 cells were Myristoylated alanine-rich C-kinase substrate, Protein capicua homolog, Protein peptidyl isomerase G, Protein PRRC2C, Chromobox homolog1 and PRP4 homolog. We have evaluated three phosphoproteins PKM2, Aldose reductase and MARCKS in SKOV-3 cells. We observed that PKM2 was phosphorylated by EGF but was not inhibited by Lapatinib and CP724714. The activity of aldose reductase in reducing NADPH as a substrate was significantly higher in EGF stimulated cells which was inhibited by Lapatinib and CP724714 but not by Geftinib (EGFR inhibitor). MARCKS was phosphorylated on stimulation of SKOV-3 cells with EGF that was inhibited by Lapatinib and CP724714 which was dependent on the kinase activity of ErbB2. These results have identified phosphoproteins that are specific to ErbB2 which have not been previously reported and sets the basis for future experiments.
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Affiliation(s)
- C Sidhanth
- Laboratory for Cancer Biology, Departments of Medical Oncology and Clinical Research, Cancer Institute (WIA), Chennai, India
| | - S Bindhya
- Laboratory for Cancer Biology, Departments of Medical Oncology and Clinical Research, Cancer Institute (WIA), Chennai, India
| | - S Krishnapriya
- Laboratory for Cancer Biology, Departments of Medical Oncology and Clinical Research, Cancer Institute (WIA), Chennai, India
| | - P Manasa
- Laboratory for Cancer Biology, Departments of Medical Oncology and Clinical Research, Cancer Institute (WIA), Chennai, India
| | - A Shabna
- Laboratory for Cancer Biology, Departments of Medical Oncology and Clinical Research, Cancer Institute (WIA), Chennai, India
| | - J Alifia
- Mass Spectrometry Facility Proteomics, National Centre for Biological Sciences (NCBS), Bangalore, India
| | - C Patole
- Mass Spectrometry Facility Proteomics, National Centre for Biological Sciences (NCBS), Bangalore, India
| | - V Kumar
- Mass Spectrometry and Proteomics Core Facility, University of Nebraska Medical Center, Omaha, NE, USA
| | - M Garg
- Amity Institute of Molecular Medicine & Stem cell Research, Amity University, Delhi, India
| | - T S Ganesan
- Laboratory for Cancer Biology, Departments of Medical Oncology and Clinical Research, Cancer Institute (WIA), Chennai, India.
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Jannapureddy S, Sharma M, Yepuri G, Schmidt AM, Ramasamy R. Aldose Reductase: An Emerging Target for Development of Interventions for Diabetic Cardiovascular Complications. Front Endocrinol (Lausanne) 2021; 12:636267. [PMID: 33776930 PMCID: PMC7992003 DOI: 10.3389/fendo.2021.636267] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/19/2021] [Indexed: 12/18/2022] Open
Abstract
Diabetes is a leading cause of cardiovascular morbidity and mortality. Despite numerous treatments for cardiovascular disease (CVD), for patients with diabetes, these therapies provide less benefit for protection from CVD. These considerations spur the concept that diabetes-specific, disease-modifying therapies are essential to identify especially as the diabetes epidemic continues to expand. In this context, high levels of blood glucose stimulate the flux via aldose reductase (AR) pathway leading to metabolic and signaling changes in cells of the cardiovascular system. In animal models flux via AR in hearts is increased by diabetes and ischemia and its inhibition protects diabetic and non-diabetic hearts from ischemia-reperfusion injury. In mouse models of diabetic atherosclerosis, human AR expression accelerates progression and impairs regression of atherosclerotic plaques. Genetic studies have revealed that single nucleotide polymorphisms (SNPs) of the ALD2 (human AR gene) is associated with diabetic complications, including cardiorenal complications. This Review presents current knowledge regarding the roles for AR in the causes and consequences of diabetic cardiovascular disease and the status of AR inhibitors in clinical trials. Studies from both human subjects and animal models are presented to highlight the breadth of evidence linking AR to the cardiovascular consequences of diabetes.
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Affiliation(s)
| | | | | | | | - Ravichandran Ramasamy
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, NYU Grossman School of Medicine, New York, NY, United States
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Yang L, Liu Y, Lv W, Wang P, Wang B, Xue J, Zhang L. Expression of interferon-stimulated gene 15-kDa protein, cyclooxygenase (COX) 1, COX-2, aldo-keto reductase family 1, member B1, and prostaglandin E synthase in the spleen during early pregnancy in sheep. Anim Sci J 2018; 89:1540-1548. [DOI: 10.1111/asj.13101] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 07/17/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Ling Yang
- Department of Animal Science; College of Life Sciences and Food Engineering; Hebei University of Engineering; Handan China
| | - Yong Liu
- Department of Animal Science; College of Life Sciences and Food Engineering; Hebei University of Engineering; Handan China
| | - Wan Lv
- Department of Animal Science; College of Life Sciences and Food Engineering; Hebei University of Engineering; Handan China
| | - Pengda Wang
- Department of Animal Science; College of Life Sciences and Food Engineering; Hebei University of Engineering; Handan China
| | - Bin Wang
- Department of Animal Science; College of Life Sciences and Food Engineering; Hebei University of Engineering; Handan China
| | - Jie Xue
- Department of Animal Science; College of Life Sciences and Food Engineering; Hebei University of Engineering; Handan China
| | - Leying Zhang
- Department of Animal Science; College of Life Sciences and Food Engineering; Hebei University of Engineering; Handan China
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Sensing of Bacterial Cyclic Dinucleotides by the Oxidoreductase RECON Promotes NF-κB Activation and Shapes a Proinflammatory Antibacterial State. Immunity 2017; 46:433-445. [PMID: 28329705 DOI: 10.1016/j.immuni.2017.02.014] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 12/20/2016] [Accepted: 01/13/2017] [Indexed: 12/25/2022]
Abstract
Bacterial and host cyclic dinucleotides (cdNs) mediate cytosolic immune responses through the STING signaling pathway, although evidence suggests that alternative pathways exist. We used cdN-conjugated beads to biochemically isolate host receptors for bacterial cdNs, and we identified the oxidoreductase RECON. High-affinity cdN binding inhibited RECON enzyme activity by simultaneously blocking the substrate and cosubstrate sites, as revealed by structural analyses. During bacterial infection of macrophages, RECON antagonized STING activation by acting as a molecular sink for cdNs. Bacterial infection of hepatocytes, which do not express STING, revealed that RECON negatively regulates NF-κB activation. Loss of RECON activity, via genetic ablation or inhibition by cdNs, increased NF-κB activation and reduced bacterial survival, suggesting that cdN inhibition of RECON promotes a proinflammatory, antibacterial state that is distinct from the antiviral state associated with STING activation. Thus, RECON functions as a cytosolic sensor for bacterial cdNs, shaping inflammatory gene activation via its effects on STING and NF-κB.
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