期刊
CELLULAR AND MOLECULAR LIFE SCIENCES
卷 65, 期 18, 页码 2924-2932出版社
SPRINGER BASEL AG
DOI: 10.1007/s00018-008-8255-3
关键词
advanced glycation end products; cardiac fibroblasts; collagen; tribble 3; mitogen-activated protein kinase
资金
- National Natural Science Foundation [30670874, 30570748]
- Natural Science Foundation of Shandong Province [Y2005C11]
Advanced glycation end products (AGEs) play an important role in collagen deposition in diabetic cardiomyopathy. TRB3, a mammalian homolog of Drosophila tribbles, functions to increase glucose intolerance and regulates cell proliferation. We demonstrated that AGEs induce collagen type I expression but inhibit collagen type III expression, accompanied by increased TRB3 expression. Furthermore, the collagen type I induced byAGEs was down-regulated after inhibition of ERK and p38-MAPK, the collagen type III reduced by AGEs was up-regulated after inhibition of ERK. The expression of collagen types I and III regulated by AGEs through MAPK was partly reversed after treatment with TRB3 siRNA. It suggests that the TRB3/MAPK signaling pathway participates in the regulation of collagen types I and III by AGEs and may provide new therapeutic strategies for diabetic cardiomyopathy.
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