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Substance P enhances cellular migration and inhibits senescence in human dermal fibroblasts under hyperglycemic conditions. Biochem Biophys Res Commun 2019; 522:917-923. [PMID: 31806373 DOI: 10.1016/j.bbrc.2019.11.172] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 11/26/2019] [Indexed: 01/07/2023]
Abstract
Diabetes induces cellular dysfunction in dermal fibroblasts, such as impairment in migration, which is a major cause of chronic wound. Here, we demonstrated that the migration of human dermal fibroblasts was impaired under a high glucose culture condition. Substance P (SP) rescued the impaired migration of the fibroblasts. The activity of Rac1, Rho-associated kinase (ROCK), and Src was required for SP-mediated rescue of fibroblast migration. SP activated Rac1 and Src, whereas, NSC23766, a Rac1 inhibitor, and PP1 and PP2, Src inhibitors, inhibited SP-mediated enhancement of fibroblast migration. Y-27632, a ROCK inhibitor, inhibited the SP-mediated rescue of fibroblast migration. Senescence-associated β-galactosidase activity increased in human dermal fibroblasts cultured in a high glucose environment, but SP inhibited the β-galactosidase activity of the fibroblasts. These results suggest that SP promotes the migration of human dermal fibroblasts in diabetic-condition-mimicking cultures via the activity of Rac1, ROCK, and Src, and inhibits fibroblast senescence in hyperglycemic cultures.
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Chang CY, Chen PH, Lu SC, Hsieh MC, Lin CW, Lee HM, Jawan B, Kao YH. Propofol-enhanced autophagy increases motility and angiogenic capacity of cultured human umbilical vascular endothelial cells. Life Sci 2015; 142:49-59. [DOI: 10.1016/j.lfs.2015.10.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 09/07/2015] [Accepted: 10/13/2015] [Indexed: 12/19/2022]
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Roberts AC, Gohil J, Hudson L, Connolly K, Warburton P, Suman R, O'Toole P, O'Regan DJ, Turner NA, Riches K, Porter KE. Aberrant phenotype in human endothelial cells of diabetic origin: implications for saphenous vein graft failure? J Diabetes Res 2015; 2015:409432. [PMID: 25950006 PMCID: PMC4407531 DOI: 10.1155/2015/409432] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 03/11/2015] [Accepted: 03/15/2015] [Indexed: 12/28/2022] Open
Abstract
Type 2 diabetes (T2DM) confers increased risk of endothelial dysfunction, coronary heart disease, and vulnerability to vein graft failure after bypass grafting, despite glycaemic control. This study explored the concept that endothelial cells (EC) cultured from T2DM and nondiabetic (ND) patients are phenotypically and functionally distinct. Cultured human saphenous vein- (SV-) EC were compared between T2DM and ND patients in parallel. Proliferation, migration, and in vitro angiogenesis assays were performed; western blotting was used to quantify phosphorylation of Akt, ERK, and eNOS. The ability of diabetic stimuli (hyperglycaemia, TNF-α, and palmitate) to modulate angiogenic potential of ND-EC was also explored. T2DM-EC displayed reduced migration (~30%) and angiogenesis (~40%) compared with ND-EC and a modest, nonsignificant trend to reduced proliferation. Significant inhibition of Akt and eNOS, but not ERK phosphorylation, was observed in T2DM cells. Hyperglycaemia did not modify ND-EC function, but TNF-α and palmitate significantly reduced angiogenic capacity (by 27% and 43%, resp.), effects mimicked by Akt inhibition. Aberrancies of EC function may help to explain the increased risk of SV graft failure in T2DM patients. This study highlights the importance of other potentially contributing factors in addition to hyperglycaemia that may inflict injury and long-term dysfunction to the homeostatic capacity of the endothelium.
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Affiliation(s)
- Anna C. Roberts
- Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Jai Gohil
- Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Laura Hudson
- Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Kyle Connolly
- School of Molecular and Cellular Biology, University of Leeds, Leeds LS2 9JT, UK
| | - Philip Warburton
- Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds LS2 9JT, UK
- Multidisciplinary Cardiovascular Research Centre (MCRC), University of Leeds, Leeds LS2 9JT, UK
| | - Rakesh Suman
- Department of Biology, University of York, York YO10 5DD, UK
| | - Peter O'Toole
- Department of Biology, University of York, York YO10 5DD, UK
| | - David J. O'Regan
- Multidisciplinary Cardiovascular Research Centre (MCRC), University of Leeds, Leeds LS2 9JT, UK
- Department of Cardiac Surgery, The Yorkshire Heart Centre, Leeds General Infirmary, Leeds LS1 3EX, UK
| | - Neil A. Turner
- Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds LS2 9JT, UK
- Multidisciplinary Cardiovascular Research Centre (MCRC), University of Leeds, Leeds LS2 9JT, UK
| | - Kirsten Riches
- Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds LS2 9JT, UK
- Multidisciplinary Cardiovascular Research Centre (MCRC), University of Leeds, Leeds LS2 9JT, UK
| | - Karen E. Porter
- Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds LS2 9JT, UK
- Multidisciplinary Cardiovascular Research Centre (MCRC), University of Leeds, Leeds LS2 9JT, UK
- *Karen E. Porter:
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Fadini GP, Avogaro A. Dipeptidyl peptidase-4 inhibition and vascular repair by mobilization of endogenous stem cells in diabetes and beyond. Atherosclerosis 2013; 229:23-9. [DOI: 10.1016/j.atherosclerosis.2013.04.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 02/28/2013] [Accepted: 04/08/2013] [Indexed: 12/13/2022]
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Gadad PC, Matthews KH, Knott RM. Role of HIF1α and PKCβ in mediating the effect of oxygen and glucose in a novel wound assay. Microvasc Res 2013; 88:61-9. [DOI: 10.1016/j.mvr.2013.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 03/06/2013] [Accepted: 03/25/2013] [Indexed: 01/13/2023]
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Zhang N, Gong L, Zhang H, Cao C. High Glucose–Induced Dysfunction of Endothelial Cells can be Restored by HoxA9EC. Ann Vasc Surg 2012; 26:1002-10. [DOI: 10.1016/j.avsg.2012.05.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 05/22/2012] [Accepted: 05/24/2012] [Indexed: 11/26/2022]
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Kelso BG, Brower JB, Targovnik JH, Caplan MR. Pyridoxine restores endothelial cell function in high glucose. Metab Syndr Relat Disord 2010; 9:63-8. [PMID: 21034273 DOI: 10.1089/met.2010.0085] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE Aminoguanidine, which inhibits the formation of advanced glycosylation end products, can restore the ability of endothelial cells to align and elongate in response to shear stress when that ability is lost during culture in high glucose conditions. This study tests whether aminoguanidine can also restore migratory ability of endothelial cells and whether pyridoxine, a stable form of vitamin B6, can restore migratory ability and ability to align and elongate in response to shear. METHODS Human aortic endothelial cells were cultured in normal glucose (5.5 mM), 17.5 mM glucose, and 30.5 mM glucose in the presence or absence of 5 mM aminoguanidine or varying concentrations of pyridoxine (10-1,000 mg/L). Assay of percent closure of a scrape wound after 24 h quantified migratory ability, and alignment and elongation under flow at 10 dynes/cm(2) quantified response to shear stress. RESULTS Aminoguanidine (5 mM) fully restores and pyridoxine (100 mg/L, 0.6 μM) partially restores migratory ability of cells cultured in 30.5 mM glucose. Pyridoxine (100 mg/L) fully restores the migratory ability of cells cultured in 17.5 mM glucose. Pyridoxine (100 mg/L) fully restores endothelial cell alignment and elongation and response to shear stress at 30.5 mM glucose. CONCLUSIONS Pyridoxine, at dosages known to be safe from previous studies (<250 mg/day) can restore migratory ability and shear stress response to endothelial cells cultured in high-glucose conditions. This indicates that pyridoxine is a potential candidate for treatment of diabetic ulcers and atherosclerosis in diabetes due to the link between these pathologies and endothelial dysfunction in diabetes.
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Affiliation(s)
- Bret G Kelso
- School of Biological and Health Systems Engineering, Fulton Schools of Engineering, Arizona State University, Tempe, Arizona 85287-9709, USA
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Ascher E, Gade PV, Hingorani A, Puthukkeril S, Kallakuri S, Scheinman M, Jacob T. Thiamine reverses hyperglycemia-induced dysfunction in cultured endothelial cells. Surgery 2001; 130:851-8. [PMID: 11685195 DOI: 10.1067/msy.2001.117194] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND High levels of glucose have previously been shown to inhibit endothelial cell migration and increase secretion of the von Willebrand factor (vWF), a marker of endothelial cell damage. This study investigates whether thiamine, an important coenzyme in intracellular glucose metabolism, improves endothelial cell migration and decreases von Willebrand factor secretion under hyperglycemic conditions. METHODS Bovine aortic endothelial cells (BAECs) were grown under physiological glucose (5.5 mmol/L) and hyperglycemic (13.8 mmol/L and 27.7 mmol/L) conditions with or without thiamine (200 micromol/L) supplementation. Endothelial cell migration was investigated in monolayers of BAECs that were wounded by scraping. The distance of migration, the number of migrating cells, and the surface area covered by the migrating cells were measured. Secretion of vWF by BAECs under physiological glucose and high glucose conditions with or without thiamine (200 micromol/L) supplementation was studied with enzyme-linked immunosorbent assay. RESULTS Under hyperglycemic conditions, there was a significant decrease in the number of endothelial cells and an increase in the secretion of vWF (P <.001). Thiamine treatment limited this inhibitory effect of elevated glucose levels on BAECs. Glucose (27.7 mmol/L) significantly decreased the migration distance of BAECs into the wounded area to 4.0 +/- 1.4 cm, as compared with 6.2 +/- 0.3 cm in the control. Thiamine supplementation restored the migration distance by BAECs (6.94 +/- 0.7 cm) and the wound surface area covered (47.7 +/- 5.6 cm(2)) (P <.001). CONCLUSIONS Hyperglycemia activates BAECs and promotes secretion of vWF, a marker of endothelial cell damage. Thiamine inhibits this endothelial cell activation and the effects of hyperglycemia on endothelial cell migration. This beneficial effect of thiamine limiting endothelial cell dysfunction is possibly through the diversion of glucose flux from anaerobic to aerobic pathways. The data from this study lead to the speculation that thiamine intake may mitigate or delay vascular complications of diabetes.
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Affiliation(s)
- E Ascher
- Division of Vascular Surgery, Maimonides Medical Center, Brooklyn, NY 11219, USA
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