Title : Minoxidil exerts different inhibitory effects on gene expression of lysyl hydroxylase 1, 2, and 3: implications for collagen cross-linking and treatment of fibrosis.

Pub. Date : 2005 Jun

PMID : 15908192






7 Functional Relationships(s)
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1 In this study, we demonstrate that minoxidil treatment of cultured fibroblasts reduces LH1>>LH2b>LH3 mRNA levels dose-and time-dependently, but has essentially no effect on the total number of pyridinoline cross-links in the collagen matrix. Minoxidil procollagen-lysine,2-oxoglutarate 5-dioxygenase 1 Homo sapiens
2 These observations can be explained by our finding that LH1 mRNA levels are the most sensitive to minoxidil treatment, corroborating that LH1 has a preference for triple helical lysine residues as substrate. Minoxidil procollagen-lysine,2-oxoglutarate 5-dioxygenase 1 Homo sapiens
3 These observations can be explained by our finding that LH1 mRNA levels are the most sensitive to minoxidil treatment, corroborating that LH1 has a preference for triple helical lysine residues as substrate. Minoxidil procollagen-lysine,2-oxoglutarate 5-dioxygenase 1 Homo sapiens
4 These observations can be explained by our finding that LH1 mRNA levels are the most sensitive to minoxidil treatment, corroborating that LH1 has a preference for triple helical lysine residues as substrate. Lysine procollagen-lysine,2-oxoglutarate 5-dioxygenase 1 Homo sapiens
5 These observations can be explained by our finding that LH1 mRNA levels are the most sensitive to minoxidil treatment, corroborating that LH1 has a preference for triple helical lysine residues as substrate. Lysine procollagen-lysine,2-oxoglutarate 5-dioxygenase 1 Homo sapiens
6 In addition, the non-proportional increase in cross-links (20-fold) with respect to the decrease in lysyl hydroxylation state of the triple helix (2-fold) even suggests that LH1 preferentially hydroxylates triple helical lysine residues at the cross-link positions. Lysine procollagen-lysine,2-oxoglutarate 5-dioxygenase 1 Homo sapiens
7 We conclude that minoxidil is unlikely to serve as an anti-fibroticum, but confers features to the collagen matrix, which provide insight into the substrate specificity of LH1. Minoxidil procollagen-lysine,2-oxoglutarate 5-dioxygenase 1 Homo sapiens