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Hyperglycemic Glucose Concentrations Up-regulate the Expression of Type VI Collagen in Vitro. Relevance to Alterations of Peripheral Nerves in Diabetes Mellitus

Overview
Journal Am J Pathol
Publisher Elsevier
Specialty Pathology
Date 1993 May 1
PMID 8494053
Citations 19
Authors
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Abstract

Electron microscopy of peripheral nerves obtained from two diabetic patients revealed large deposits of microfibrils and the presence of Luse bodies in the vicinity of perineurial cells. Microfibrils were found to accumulate also in the sciatic nerves of diabetic BB rats; these microfibrillar deposits were shown to contain type VI collagen by immunoelectron microscopy. Connective tissue cells cultured from rat sciatic nerves were exposed to high glucose concentrations. High glucose concentrations up-regulated the mRNA steady-state levels of alpha 1(VI), alpha 2(VI), and alpha 3(VI) chains of type VI collagen and caused accumulation of type VI collagen-containing fibrils in the cultures. Immunostaining and in situ hybridizations demonstrated that perineurial cells, Schwann cells, and fibroblasts expressed type VI collagen at the mRNA and protein levels. The results suggest that the turnover and supramolecular assembly of type VI collagen are perturbed in diabetic nerves and that glucose per se increases the expression of type VI collagen in vitro.

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References
1.
Chomczynski P, Sacchi N . Single-step method of RNA isolation by acid guanidinium thiocyanate-phenol-chloroform extraction. Anal Biochem. 1987; 162(1):156-9. DOI: 10.1006/abio.1987.9999. View

2.
Sakai L, Keene D, Engvall E . Fibrillin, a new 350-kD glycoprotein, is a component of extracellular microfibrils. J Cell Biol. 1986; 103(6 Pt 1):2499-509. PMC: 2114568. DOI: 10.1083/jcb.103.6.2499. View

3.
Chu M, Mann K, Deutzmann R, Bernard M, Timpl R . Characterization of three constituent chains of collagen type VI by peptide sequences and cDNA clones. Eur J Biochem. 1987; 168(2):309-17. DOI: 10.1111/j.1432-1033.1987.tb13422.x. View

4.
Peltonen J, Jaakkola S, Virtanen I, Pelliniemi L . Perineurial cells in culture. An immunocytochemical and electron microscopic study. Lab Invest. 1987; 57(5):480-8. View

5.
Cagliero E, Maiello M, Boeri D, Roy S, Lorenzi M . Increased expression of basement membrane components in human endothelial cells cultured in high glucose. J Clin Invest. 1988; 82(2):735-8. PMC: 303571. DOI: 10.1172/JCI113655. View