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Mishra R, Saha P, Datla SR, Mellacheruvu P, Gunasekaran M, Guru SA, Fu X, Chen L, Bolli R, Sharma S, Kaushal S. Correction: Transplanted allogeneic cardiac progenitor cells secrete GDF-15 and stimulate an active immune remodeling process in the ischemic myocardium. J Transl Med 2023; 21:168. [PMID: 36869398 PMCID: PMC9983176 DOI: 10.1186/s12967-023-03976-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023] Open
Affiliation(s)
- Rachana Mishra
- grid.16753.360000 0001 2299 3507Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.413808.60000 0004 0388 2248Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital, Chicago, IL USA
| | - Progyaparamita Saha
- grid.16753.360000 0001 2299 3507Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.413808.60000 0004 0388 2248Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital, Chicago, IL USA
| | - Srinivasa Raju Datla
- grid.411024.20000 0001 2175 4264Department of Surgery, University of Maryland School of Medicine, Baltimore, MD USA
| | - Pranav Mellacheruvu
- grid.16753.360000 0001 2299 3507Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Muthukumar Gunasekaran
- grid.16753.360000 0001 2299 3507Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.413808.60000 0004 0388 2248Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital, Chicago, IL USA
| | - Sameer Ahmad Guru
- grid.16753.360000 0001 2299 3507Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.413808.60000 0004 0388 2248Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital, Chicago, IL USA
| | - Xuebin Fu
- grid.16753.360000 0001 2299 3507Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.413808.60000 0004 0388 2248Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital, Chicago, IL USA
| | - Ling Chen
- grid.16753.360000 0001 2299 3507Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.413808.60000 0004 0388 2248Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital, Chicago, IL USA
| | - Roberto Bolli
- grid.266623.50000 0001 2113 1622Division of Cardiovascular Medicine and Institute of Molecular Cardiology, University of Louisville, Louisville, USA
| | - Sudhish Sharma
- Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA. .,Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, Chicago, IL, USA.
| | - Sunjay Kaushal
- Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA. .,Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, Chicago, IL, USA.
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Mishra R, Saha P, Datla SR, Mellacheruvu P, Gunasekaran M, Guru SA, Fu X, Chen L, Bolli R, Sharma S, Kaushal S. Transplanted allogeneic cardiac progenitor cells secrete GDF-15 and stimulate an active immune remodeling process in the ischemic myocardium. J Transl Med 2022; 20:323. [PMID: 35864544 PMCID: PMC9306063 DOI: 10.1186/s12967-022-03534-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 07/13/2022] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Despite promising results in clinical studies, the mechanism for the beneficial effects of allogenic cell-based therapies remains unclear. Macrophages are not only critical mediators of inflammation but also critical players in cardiac remodeling. We hypothesized that transplanted allogenic rat cardiac progenitor cells (rCPCs) augment T-regulatory cells which ultimately promote proliferation of M2 like macrophages by an as-yet undefined mechanism. METHODS AND RESULTS To test this hypothesis, we used crossover rat strains for exploring the mechanism of myocardial repair by allogenic CPCs. Human CPCs (hCPCs) were isolated from adult patients undergoing coronary artery bypass grafting, and rat CPCs (rCPCs) were isolated from male Wistar-Kyoto (WKY) rat hearts. Allogenic rCPCs suppressed the proliferation of T-cells observed in mixed lymphocyte reactions in vitro. Transplanted syngeneic or allogeneic rCPCs significantly increased cardiac function in a rat myocardial infarct (MI) model, whereas xenogeneic CPCs did not. Allogeneic rCPCs stimulated immunomodulatory responses by specifically increasing T-regulatory cells and M2 polarization, while maintaining their cardiac recovery potential and safety profile. Mechanistically, we confirmed the inactivation of NF-kB in Treg cells and increased M2 macrophages in the myocardium after MI by transplanted CPCs derived GDF15 and it's uptake by CD48 receptor on immune cells. CONCLUSION Collectively, these findings strongly support the active immunomodulatory properties and robust therapeutic potential of allogenic CPCs in post-MI cardiac dysfunction.
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Affiliation(s)
- Rachana Mishra
- grid.16753.360000 0001 2299 3507Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.413808.60000 0004 0388 2248Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital, Chicago, IL USA
| | - Progyaparamita Saha
- grid.16753.360000 0001 2299 3507Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.413808.60000 0004 0388 2248Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital, Chicago, IL USA
| | - Srinivasa Raju Datla
- grid.411024.20000 0001 2175 4264Department of Surgery, University of Maryland School of Medicine, Baltimore, MD USA
| | - Pranav Mellacheruvu
- grid.16753.360000 0001 2299 3507Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Muthukumar Gunasekaran
- grid.16753.360000 0001 2299 3507Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.413808.60000 0004 0388 2248Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital, Chicago, IL USA
| | - Sameer Ahmad Guru
- grid.16753.360000 0001 2299 3507Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.413808.60000 0004 0388 2248Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital, Chicago, IL USA
| | - Xubin Fu
- grid.16753.360000 0001 2299 3507Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.413808.60000 0004 0388 2248Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital, Chicago, IL USA
| | - Ling Chen
- grid.16753.360000 0001 2299 3507Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL USA ,grid.413808.60000 0004 0388 2248Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital, Chicago, IL USA
| | - Roberto Bolli
- grid.266623.50000 0001 2113 1622Division of Cardiovascular Medicine and Institute of Molecular Cardiology, University of Louisville, Louisville, USA
| | - Sudhish Sharma
- Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA. .,Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, Chicago, IL, USA.
| | - Sunjay Kaushal
- Department of Cardiovascular-Thoracic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA. .,Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, Chicago, IL, USA.
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Saha P, Sharma S, Korutla L, Datla SR, Shoja-Taheri F, Mishra R, Bigham GE, Sarkar M, Morales D, Bittle G, Gunasekaran M, Ambastha C, Arfat MY, Li D, Habertheuer A, Hu R, Platt MO, Yang P, Davis ME, Vallabhajosyula P, Kaushal S. Circulating exosomes derived from transplanted progenitor cells aid the functional recovery of ischemic myocardium. Sci Transl Med 2020; 11:11/493/eaau1168. [PMID: 31118291 DOI: 10.1126/scitranslmed.aau1168] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 09/11/2018] [Accepted: 04/16/2019] [Indexed: 12/19/2022]
Abstract
The stem cell field is hindered by its inability to noninvasively monitor transplanted cells within the target organ in a repeatable, time-sensitive, and condition-specific manner. We hypothesized that quantifying and characterizing transplanted cell-derived exosomes in the recipient plasma would enable reliable, noninvasive surveillance of the conditional activity of the transplanted cells. To test this hypothesis, we used a human-into-rat xenogeneic myocardial infarction model comparing two well-studied progenitor cell types: cardiosphere-derived cells (CDCs) and c-kit+ cardiac progenitor cells (CPCs), both derived from the right atrial appendage of adults undergoing cardiopulmonary bypass. CPCs outperformed the CDCs in cell-based and in vivo regenerative assays. To noninvasively monitor the activity of transplanted CDCs or CPCs in vivo, we purified progenitor cell-specific exosomes from recipient total plasma exosomes. Seven days after transplantation, the concentration of plasma CPC-specific exosomes increased about twofold compared to CDC-specific exosomes. Computational pathway analysis failed to link CPC or CDC cellular messenger RNA (mRNA) with observed myocardial recovery, although recovery was linked to the microRNA (miRNA) cargo of CPC exosomes purified from recipient plasma. We further identified mechanistic pathways governing specific outcomes related to myocardial recovery associated with transplanted CPCs. Collectively, these findings demonstrate the potential of circulating progenitor cell-specific exosomes as a liquid biopsy that provides a noninvasive window into the conditional state of the transplanted cells. These data implicate the surveillance potential of cell-specific exosomes for allogeneic cell therapies.
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Affiliation(s)
- Progyaparamita Saha
- Division of Cardiovascular Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Sudhish Sharma
- Division of Cardiovascular Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Laxminarayana Korutla
- Division of Cardiovascular Surgery, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Srinivasa Raju Datla
- Division of Cardiovascular Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Farnaz Shoja-Taheri
- Wallace H. Coulter Department of Biomedical Engineering and Division of Cardiology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Rachana Mishra
- Division of Cardiovascular Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Grace E Bigham
- Division of Cardiovascular Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Malini Sarkar
- Division of Cardiovascular Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - David Morales
- Division of Cardiovascular Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Gregory Bittle
- Division of Cardiovascular Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Muthukumar Gunasekaran
- Division of Cardiovascular Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Chetan Ambastha
- Division of Cardiovascular Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Mir Yasir Arfat
- Division of Cardiovascular Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Deqiang Li
- Division of Cardiovascular Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Andreas Habertheuer
- Division of Cardiovascular Surgery, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Robert Hu
- Division of Cardiovascular Surgery, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Manu O Platt
- Wallace H. Coulter Department of Biomedical Engineering and Division of Cardiology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Peixin Yang
- Division of Cardiovascular Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Michael E Davis
- Wallace H. Coulter Department of Biomedical Engineering and Division of Cardiology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | | | - Sunjay Kaushal
- Division of Cardiovascular Surgery, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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Datla SR, Hilenski L, Seidel-Rogol B, Dikalova AE, Harousseau M, Punkova L, Joseph G, Taylor WR, Lassègue B, Griendling KK. Poldip2 knockdown inhibits vascular smooth muscle proliferation and neointima formation by regulating the expression of PCNA and p21. J Transl Med 2019; 99:387-398. [PMID: 30237457 PMCID: PMC6393166 DOI: 10.1038/s41374-018-0103-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 06/20/2018] [Accepted: 07/02/2018] [Indexed: 01/01/2023] Open
Abstract
Polymerase delta-interacting protein 2 (Poldip2) is a multi-functional protein with numerous roles in the vasculature, including the regulation of cell apoptosis and migration, as well as extracellular matrix deposition; however, its role in VSMC proliferation and neointimal formation is unknown. In this study, we investigated the role of Poldip2 in intraluminal wire-injury induced neointima formation and proliferation of vascular smooth muscle cells in vitro and in vivo. Poldip2 expression was observed in the intima and media of human atherosclerotic arteries, where it colocalized with proliferating cell nuclear antigen (PCNA). Wire injury of femoral arteries of Poldip2+/+ mice induced robust neointimal formation after 2 weeks, which was impaired in Poldip2+/‒ mice. PCNA expression was significantly reduced and expression of the cell cycle inhibitor p21 was significantly increased in wire-injured arteries of Poldip2+/‒ animals compared to wild-type controls. No difference was observed in apoptosis. Downregulation of Poldip2 in rat aortic smooth muscle cells significantly reduced serum-induced proliferation and PCNA expression, but upregulated p21 expression. Downregulation of p21 using siRNA reversed the inhibition of proliferation induced by knockdown of Poldip2. These results indicate that Poldip2 plays a critical role in the proliferation of VSMCs.
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Affiliation(s)
- Srinivasa Raju Datla
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322
| | - Lula Hilenski
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322
| | - Bonnie Seidel-Rogol
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322
| | - Anna E. Dikalova
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322
| | - Mark Harousseau
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322
| | - Lili Punkova
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322
| | - Giji Joseph
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322
| | - W. Robert Taylor
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322,The Wallace H. Coulter Department of Biomedical Engineering, Emory University, Atlanta, GA 30322,The Atlanta VA Medical Center, Atlanta, GA 30033
| | - Bernard Lassègue
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322
| | - Kathy K. Griendling
- Department of Medicine, Division of Cardiology, Emory University, Atlanta, GA 30322
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Sharma S, Mishra R, Bigham GE, Wehman B, Khan MM, Xu H, Saha P, Goo YA, Datla SR, Chen L, Tulapurkar ME, Taylor BS, Yang P, Karathanasis S, Goodlett DR, Kaushal S. A Deep Proteome Analysis Identifies the Complete Secretome as the Functional Unit of Human Cardiac Progenitor Cells. Circ Res 2016; 120:816-834. [PMID: 27908912 DOI: 10.1161/circresaha.116.309782] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 11/28/2016] [Accepted: 12/01/2016] [Indexed: 12/21/2022]
Abstract
RATIONALE Cardiac progenitor cells are an attractive cell type for tissue regeneration, but their mechanism for myocardial remodeling is still unclear. OBJECTIVE This investigation determines how chronological age influences the phenotypic characteristics and the secretome of human cardiac progenitor cells (CPCs), and their potential to recover injured myocardium. METHODS AND RESULTS Adult (aCPCs) and neonatal (nCPCs) cells were derived from patients aged >40 years or <1 month, respectively, and their functional potential was determined in a rodent myocardial infarction model. A more robust in vitro proliferative capacity of nCPCs, compared with aCPCs, correlated with significantly greater myocardial recovery mediated by nCPCs in vivo. Strikingly, a single injection of nCPC-derived total conditioned media was significantly more effective than nCPCs, aCPC-derived TCM, or nCPC-derived exosomes in recovering cardiac function, stimulating neovascularization, and promoting myocardial remodeling. High-resolution accurate mass spectrometry with reverse phase liquid chromatography fractionation and mass spectrometry was used to identify proteins in the secretome of aCPCs and nCPCs, and the literature-based networking software identified specific pathways affected by the secretome of CPCs in the setting of myocardial infarction. Examining the TCM, we quantified changes in the expression pattern of 804 proteins in nCPC-derived TCM and 513 proteins in aCPC-derived TCM. The literature-based proteomic network analysis identified that 46 and 6 canonical signaling pathways were significantly targeted by nCPC-derived TCM and aCPC-derived TCM, respectively. One leading candidate pathway is heat-shock factor-1, potentially affecting 8 identified pathways for nCPC-derived TCM but none for aCPC-derived TCM. To validate this prediction, we demonstrated that the modulation of heat-shock factor-1 by knockdown in nCPCs or overexpression in aCPCs significantly altered the quality of their secretome. CONCLUSIONS A deep proteomic analysis revealed both detailed and global mechanisms underlying the chronological age-based differences in the ability of CPCs to promote myocardial recovery via the components of their secretome.
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Affiliation(s)
- Sudhish Sharma
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.)
| | - Rachana Mishra
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.)
| | - Grace E Bigham
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.)
| | - Brody Wehman
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.)
| | - Mohd M Khan
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.)
| | - Huichun Xu
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.)
| | - Progyaparamita Saha
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.)
| | - Young Ah Goo
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.)
| | - Srinivasa Raju Datla
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.)
| | - Ling Chen
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.)
| | - Mohan E Tulapurkar
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.)
| | - Bradley S Taylor
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.)
| | - Peixin Yang
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.)
| | - Sotirios Karathanasis
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.)
| | - David R Goodlett
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.)
| | - Sunjay Kaushal
- From the Division of Cardiac Surgery, School of Medicine (S.S., R.M., G.E.B., B.W., P.S., S.R.D., B.S.T., S.K.), Department of Pharmaceutical Sciences, School of Pharmacy (M.M.K., Y.A.G., D.R.G.), Division of Endocrinology, Diabetes and Nutrition, Department of Medicine (H.X.), Department of Physiology and Medicine, School of Medicine (L.C.), Department of OB/GYN & Reproductive Science, Department of Biochemistry and Molecular Biology, School of Medicine (P.Y.), and Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine (M.E.T.), University of Maryland, Baltimore; and Cardiovascular and Metabolic Diseases, Innovative Medicines Biotech Unit MedImmune, Inc., Gaithersburg, MD (S.K.).
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6
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Datla SR, Guo Y, Mishra R, Chen L, Saha P, Sharma S, Bigham G, Jack G, Kaushal S. Abstract 351: Allogeneic C-kit
+
Cardiac Progenitor Cells are Immune Tolerant With Strong Efficacy for Cardiac Functional Recovery. Circ Res 2016. [DOI: 10.1161/res.119.suppl_1.351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
A recent clinical trail using adult autologous c-kit
+
cardiac progenitor cells (c-kit
+
CPCs) have demonstrated cardiac functional recovery in myocardial ischemic patients. This autologous approach of ex vivo expansion of c-kit+ CPCs is expensive and time consuming. The immune tolerant properties of c-kit
+
CPCs have not been investigated as an alternative clinical strategy. In this study, we compared allogeneic and syngeneic c-kit
+
CPCs immunogenic tolerance and cardiac recovery potentials using divergent inbred rat strains in a myocardial infarction (MI) model.
Methods and Results:
We isolated rat c-kit
+
CPCs (rc-kit
+
CPCs) from male Wistar Kyoto (WKY) rat hearts and human c-kit
+
CPCs (hc-kit
+
CPCs) from adult coronary artery bypass graft patient’s right atrial appendage. In vitro, both rat and human c-kit
+
CPCs expressed MHC class I but not class II or co-stimulatory molecules CD80 and CD86. In mixed lymphocyte reaction (MLR) assay, allogeneic and syngeneic rc-kit
+
CPCs elicited minimal T-cell proliferation. In vivo, intra-myocardial administration of WKY rc-kit
+
CPCs after creating MI condition, elicited minimal local, systemic and humoral inflammatory response in allogeneic (Brown Norway (BN) female rats) and syngeneic (WKY female rats) groups compared to the xenogeneic (hc-kit
+
CPCs in BN male rats). In addition, the allogeneic and syngeneic rc-kit
+
CPCs groups significantly recovered cardiac function (EF, SV, and CO) compared to the xenogeneic c-kit
+
CPCs group, which had no functional recoverability. Histological analysis further revealed that allogeneic and syngeneic rc-kit
+
CPCs groups had significantly decreased scar size by increasing endogenous cardiomyocyte proliferation, c-kit
+
CPC recruitment and increased neoangiogenesis.
Conclusion:
Allogeneic c-kit
+
CPCs are immune tolerant and produce minimal inflammatory response while maintaining their cardiac recovery potentials in immunologically divergent species. Our observation, for the fist time, reports the minimal immunogenic response by c-kit
+
CPCs and strongly supports the development of an allogeneic c-kit
+
CPC strategy for clinical trial applications.
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Affiliation(s)
| | - Yin Guo
- Univ of Maryland, Baltimore, MD
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7
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Sharma S, Mishra R, Simpson D, Wehman B, Colletti EJ, Deshmukh S, Datla SR, Balachandran K, Guo Y, Chen L, Siddiqui OT, Kaushal S, Kaushal S. Cardiosphere-derived cells from pediatric end-stage heart failure patients have enhanced functional activity due to the heat shock response regulating the secretome. Stem Cells 2016; 33:1213-29. [PMID: 25752510 DOI: 10.1002/stem.1937] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 11/11/2014] [Accepted: 11/21/2014] [Indexed: 11/09/2022]
Abstract
We have demonstrated that human neonatal cardiosphere-derived cells (CDCs) derived from the young are more regenerative due to their robust secretome. However, it is unclear how the decompensated pediatric heart impacts the functional activity of their CDCs. Our aim was to characterize the potency of pediatric CDCs derived from normal functioning myocardium of control heart disease (CHD) patients to those generated from age-matched end stage heart failure (ESHF) patients and to determine the mechanisms involved. ESHF-derived CDCs contained a higher number of c-kit(+) , Islet-1(+) , and Sca-1(+) cells. When transplanted into an infarcted rodent model, ESHF-derived CDCs significantly demonstrated higher restoration of ventricular function, prevented adverse remodeling, and enhanced angiogenesis when compared with CHD patients. The superior functional recovery of the ESHF-derived CDCs was mediated in part by increased SDF-1α and VEGF-A secretion resulting in augmented recruitment of endogenous stem cells and proliferation of cardiomyocytes. We determined the mechanism is due to the secretome directed by the heat shock response (HSR), which is supported by three lines of evidence. First, gain of function studies demonstrated that increased HSR induced the lower functioning CHD-derived CDCs to significantly restore myocardial function. Second, loss-of function studies targeting the HSR impaired the ability of the ESHF-derived CDCs to functionally recover the injured myocardium. Finally, the native ESHF myocardium had an increased number of c-kit(+) cardiac stem cells. These findings suggest that the HSR enhances the functional activity of ESHF-derived CDCs by increasing their secretome activity, notably SDF-1α and VEGF-A.
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Affiliation(s)
- Sudhish Sharma
- Division of Cardiac Surgery, University of Maryland School of Medicine, Baltimore, Maryland, USA
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8
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Wehman B, Sharma S, Mishra R, Guo Y, Colletti EJ, Kon ZN, Datla SR, Siddiqui OT, Balachandran K, Kaushal S. Pediatric End-Stage Failing Hearts Demonstrate Increased Cardiac Stem Cells. Ann Thorac Surg 2015; 100:615-22. [PMID: 26138767 DOI: 10.1016/j.athoracsur.2015.04.088] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2014] [Revised: 03/29/2015] [Accepted: 04/01/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND We sought to determine the location, expression, and characterization of cardiac stem cells (CSCs) in children with end-stage heart failure (ESHF). We hypothesized ESHF myocardium would contain an increased number of CSCs relative to age-matched healthy myocardium, and ESHF-derived CSCs would have diminished functional capacity as evidenced by reduced telomere length. METHODS Tissue samples were obtained from the explanted hearts of children undergoing heart transplantation with ESHF, defined as New York Heart Association class III or IV and ejection fraction less than 0.20, and from age-matched congenital heart disease patients with normal myocardium. The expression profile of cardiac-specific stem cell markers was determined using quantitative real time polymerase chain reaction and immunofluorescence. Cardiac stem cell growth reserve was assessed with telomere length. RESULTS There were 15 ESHF and 15 age-matched congenital heart disease patients. End-stage heart failure myocardium demonstrated increased expression of c-kit(+) and islet-1(+) CSCs by 2.0- and 2.5-fold, respectively, compared with myocardium from congenital heart disease patients. There was no difference in expression of c-kit(+) CSCs with advancing age from infants to children in ESHF myocardium. The c-kit(+) CSCs isolated from ESHF patients demonstrated significantly reduced telomere length, suggesting a diminished functional capability in these cells (8.1 ± 0.6 kbp versus 6.3 ± 0.3 kbp; p = 0.015). CONCLUSIONS End-stage heart failure myocardium demonstrated an age-independent increase in CSCs relative to healthy myocardium; however, these CSCs from ESHF patients may have diminished proliferative ability and reduced functionality as an autologous cell therapy candidate. Further investigation is necessary to determine the role of ESHF-derived CSCs within the myocardium.
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Affiliation(s)
- Brody Wehman
- Division of Cardiac Surgery, University of Maryland School of Medicine, Baltimore, Maryland
| | - Sudhish Sharma
- Division of Cardiac Surgery, University of Maryland School of Medicine, Baltimore, Maryland
| | - Rachana Mishra
- Division of Cardiac Surgery, University of Maryland School of Medicine, Baltimore, Maryland
| | - Yin Guo
- Division of Cardiac Surgery, University of Maryland School of Medicine, Baltimore, Maryland
| | - Evan J Colletti
- Division of Cardiac Surgery, University of Maryland School of Medicine, Baltimore, Maryland
| | - Zachary N Kon
- Division of Cardiac Surgery, University of Maryland School of Medicine, Baltimore, Maryland
| | - Srinivasa Raju Datla
- Division of Cardiac Surgery, University of Maryland School of Medicine, Baltimore, Maryland
| | - Osama T Siddiqui
- Division of Cardiac Surgery, University of Maryland School of Medicine, Baltimore, Maryland
| | - Keerti Balachandran
- Division of Cardiac Surgery, University of Maryland School of Medicine, Baltimore, Maryland
| | - Sunjay Kaushal
- Division of Cardiac Surgery, University of Maryland School of Medicine, Baltimore, Maryland.
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9
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Datla SR, McGrail DJ, Vukelic S, Huff LP, Lyle AN, Pounkova L, Lee M, Seidel-Rogol B, Khalil MK, Hilenski LL, Terada LS, Dawson MR, Lassègue B, Griendling KK. Poldip2 controls vascular smooth muscle cell migration by regulating focal adhesion turnover and force polarization. Am J Physiol Heart Circ Physiol 2014; 307:H945-57. [PMID: 25063792 DOI: 10.1152/ajpheart.00918.2013] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Polymerase-δ-interacting protein 2 (Poldip2) interacts with NADPH oxidase 4 (Nox4) and regulates migration; however, the precise underlying mechanisms are unclear. Here, we investigated the role of Poldip2 in focal adhesion turnover, as well as traction force generation and polarization. Poldip2 overexpression (AdPoldip2) in vascular smooth muscle cells (VSMCs) impairs PDGF-induced migration and induces a characteristic phenotype of long cytoplasmic extensions. AdPoldip2 also prevents the decrease in spreading and increased aspect ratio observed in response to PDGF and slightly impairs cell contraction. Moreover, AdPoldip2 blocks focal adhesion dissolution and sustains H2O2 levels in focal adhesions, whereas Poldip2 knockdown (siPoldip2) significantly decreases the number of focal adhesions. RhoA activity is unchanged when focal adhesion dissolution is stimulated in control cells but increases in AdPoldip2-treated cells. Inhibition of RhoA blocks Poldip2-mediated attenuation of focal adhesion dissolution, and overexpression of RhoA or focal adhesion kinase (FAK) reverses the loss of focal adhesions induced by siPoldip2, indicating that RhoA and FAK mediate the effect of Poldip2 on focal adhesions. Nox4 silencing prevents focal adhesion stabilization by AdPoldip2 and induces a phenotype similar to siPoldip2, suggesting a role for Nox4 in Poldip2-induced focal adhesion stability. As a consequence of impaired focal adhesion turnover, PDGF-treated AdPoldip2 cells are unable to reduce and polarize traction forces, a necessary first step in migration. These results implicate Poldip2 in VSMC migration via regulation of focal adhesion turnover and traction force generation in a Nox4/RhoA/FAK-dependent manner.
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Affiliation(s)
- Srinivasa Raju Datla
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta
| | | | - Sasa Vukelic
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta
| | - Lauren P Huff
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta
| | - Alicia N Lyle
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta
| | - Lily Pounkova
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta
| | - Minyoung Lee
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta
| | - Bonnie Seidel-Rogol
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta
| | - Mazen K Khalil
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta
| | - Lula L Hilenski
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta
| | - Lance S Terada
- Department of Internal Medicine, Division of Pulmonary and Critical Care, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Michelle R Dawson
- Department of Chemical and Biomolecular Engineering and The Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia
| | - Bernard Lassègue
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta
| | - Kathy K Griendling
- Department of Medicine, Division of Cardiology, Emory University School of Medicine, Atlanta;
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10
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Sutliff RL, Hilenski LL, Amanso AM, Parastatidis I, Dikalova AE, Hansen L, Datla SR, Long JS, El-Ali AM, Joseph G, Gleason RL, Taylor WR, Hart CM, Griendling KK, Lassègue B. Polymerase delta interacting protein 2 sustains vascular structure and function. Arterioscler Thromb Vasc Biol 2013; 33:2154-61. [PMID: 23825363 DOI: 10.1161/atvbaha.113.301913] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
OBJECTIVE On the basis of previous evidence that polymerase delta interacting protein 2 (Poldip2) increases reduced nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 4 (Nox4) activity in vascular smooth muscle cells, we hypothesized that in vivo knockdown of Poldip2 would inhibit reactive oxygen species production and alter vascular function. APPROACH AND RESULTS Because homozygous Poldip2 deletion is lethal, Poldip2(+/-) mice were used. Poldip2 mRNA and protein levels were reduced by ≈50% in Poldip2(+/-) aorta, with no change in p22phox, Nox1, Nox2, and Nox4 mRNAs. NADPH oxidase activity was also inhibited in Poldip2(+/-) tissue. Isolated aortas from Poldip2(+/-) mice demonstrated impaired phenylephrine and potassium chloride-induced contractions, increased stiffness, and reduced compliance associated with disruption of elastic lamellae and excessive extracellular matrix deposition. Collagen I secretion was elevated in cultured vascular smooth muscle cells from Poldip2(+/-) mice and restored by H2O2 supplementation, suggesting that this novel function of Poldip2 is mediated by reactive oxygen species. Furthermore, Poldip2(+/-) mice were protected against aortic dilatation in a model of experimental aneurysm, an effect consistent with increased collagen secretion. CONCLUSIONS Poldip2 knockdown reduces H2O2 production in vivo, leading to increases in extracellular matrix, greater vascular stiffness, and impaired agonist-mediated contraction. Thus, unaltered expression of Poldip2 is necessary for vascular integrity and function.
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Affiliation(s)
- Roy L Sutliff
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Atlanta Veterans Affairs Medical Center and Emory University School of Medicine, Decatur, GA, USA
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11
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Affiliation(s)
- Srinivasa Raju Datla
- Emory University, Division of Cardiology, 319 WMB, 1639 Pierce Dr, Atlanta, GA 30322, USA
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12
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Datla SR, Peshavariya H, Dusting GJ, Mahadev K, Goldstein BJ, Jiang F. Important role of Nox4 type NADPH oxidase in angiogenic responses in human microvascular endothelial cells in vitro. Arterioscler Thromb Vasc Biol 2007; 27:2319-24. [PMID: 17717289 DOI: 10.1161/atvbaha.107.149450] [Citation(s) in RCA: 147] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Redox signaling mediated by Nox2-containing NADPH oxidase has been implicated in angiogenic responses both in vitro and in vivo. Because Nox4 type NADPH oxidase is also highly expressed in endothelial cells, we studied the role of Nox4 in angiogenic responses in human endothelial cells in culture. METHODS AND RESULTS Inhibition of Nox4 expression by small interfering RNA reduced angiogenic responses as assessed by the tube formation and wound healing assays, in both human microvascular and umbilical vein endothelial cells. Overexpression of wild-type Nox4 enhanced, whereas expression of a dominant negative form of Nox4 suppressed the angiogenic responses in endothelial cells. These effects were mimicked by exogenous H2O2 and the antioxidant compound ebselen, respectively. Overexpression of Nox4 enhanced receptor tyrosine kinase phosphorylation and the activation of extracellular signal-regulated kinase (Erk). Inhibition of the Erk pathway reduced the endothelial angiogenic responses. Nox4 expression also promotes proliferation and migration of endothelial cells, and reduced serum deprivation-induced apoptosis. CONCLUSIONS Nox4 type NADPH oxidase promotes endothelial angiogenic responses, at least partly, via enhanced activation of receptor tyrosine kinases and the downstream Erk pathway.
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Affiliation(s)
- Srinivasa Raju Datla
- Bernard O'Brien Institute of Microsurgery, University of Melbourne, Victoria 3065, Australia
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13
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Affiliation(s)
- Srinivasa Raju Datla
- Bernard O'Brien Institute of Microsurgery, University of Melbourne42, Fitzroy street, FitzroyMelbourneAustralia
| | - Fan Jiang
- Bernard O'Brien Institute of Microsurgery, University of Melbourne42, Fitzroy street, FitzroyMelbourneAustralia
| | - Greg J Dusting
- Bernard O'Brien Institute of Microsurgery, University of Melbourne42, Fitzroy street, FitzroyMelbourneAustralia
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14
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Singh SK, Vobbalareddy S, Kalleda SR, Casturi SR, Datla SR, Mamidi RNVS, Mullangi R, Ramanujam R, Yeleswarapu KR, Iqbal J. Identification of 2-hydroxymethyl-4-[5-(4-methoxyphenyl)-3-trifluoromethyl-pyrazol-1-yl]-N-propionylbenzenesulfonamide sodium as a potential COX-2 inhibitor for oral and parenteral administration. Bioorg Med Chem 2006; 14:8626-34. [PMID: 16949828 DOI: 10.1016/j.bmc.2006.08.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2006] [Revised: 08/16/2006] [Accepted: 08/17/2006] [Indexed: 11/29/2022]
Abstract
Synthesis of prodrugs of orally active COX-2 inhibitor 3 involving sulfamoyl (SO(2)NH(2)) and hydroxymethyl (CH(2)OH) groups, and their biological evaluation are described. Of these prodrugs, the N-propionyl sulfonamide sodium 3k was found to be much superior to the parent compound 3 and other marketed COX-2 inhibitors in carrageenan induced rat paw edema model of inflammation due to highly elevated drug levels in systemic circulation. This prodrug has a potential both for oral as well as parenteral administration due to impressive analgesic activity, antipyretic potency, and extraordinary water solubility.
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Affiliation(s)
- Sunil Kumar Singh
- Discovery Chemistry, Discovery Research-Dr. Reddy's Laboratories Ltd, Bollaram Road, Miyapur, Hyderabad 500 049, India.
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15
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Jiang F, Roberts SJ, Datla SR, Dusting GJ. Nitric oxide mediates NADPH oxidase function via heme oxygenase-1 in human endothelial cells. Vascul Pharmacol 2006. [DOI: 10.1016/j.vph.2006.08.218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Singh SK, Vobbalareddy S, Kalleda SR, Rajjak SA, Casturi SR, Datla SR, Mamidi RNVS, Mullangi R, Bhamidipati R, Ramanujam R, Akella V, Yeleswarapu KR. 2-hydroxymethyl-4-[5-(4-methoxyphenyl)-3-trifluoromethyl-1H-1-pyrazolyl]-1-benzenesulfonamide (DRF-4367): an orally active COX-2 inhibitor identified through pharmacophoric modulation. Org Biomol Chem 2004; 2:2442-50. [PMID: 15326524 DOI: 10.1039/b402787f] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Analogs of 1,5-diarylpyrazoles with a novel pharmacophore at N1 were designed, synthesized and evaluated for the in-vitro cyclooxygenase (COX-1/COX-2) inhibitory activity. The variations at/around position-4 of the C-5 phenyl ring in conjunction with a CF3 and CHF2 groups at C-3 exhibited a high degree of potency and selectivity index (SI) for COX-2 inhibition. The in-vivo evaluation of these potent compounds with a few earlier ones indicated the 4-OMe-phenyl analog and the 4-NHMe-phenyl analog with a CF3, and the 4-OEt-phenyl analog with a CHF2 group at C-3 to possess superior potency than celecoxib. In addition to its impressive anti-inflammatory, antipyretic, analgesic and anti-arthritic properties, compound (DRF-4367) was found to possess an excellent pharmacokinetic profile, gastrointestinal (GI) safety in the long-term arthritis study and COX-2 potency in human whole blood assay. Thus, compound was selected as an orally active anti-inflammatory candidate for pre-clinical evaluation.
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Affiliation(s)
- Sunil Kumar Singh
- Discovery Chemistry, Discovery Research-Dr. Reddy's Laboratories Ltd., Bollaram Road, Miyapur, Hyderabad 500 049, India.
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