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2 edition of effects of doxycycline regulation on fibrillar collagen production in long term smooth muscle cell culture. found in the catalog.

effects of doxycycline regulation on fibrillar collagen production in long term smooth muscle cell culture.

Elsa Hin-Yee Liu

effects of doxycycline regulation on fibrillar collagen production in long term smooth muscle cell culture.

by Elsa Hin-Yee Liu

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Published .
Written in English


About the Edition

Collagen remodeling plays an important role in the pathogenesis of vascular diseases including atherosclerosis and aneurysm. In this study I investigate the effect of doxycycline, a matrix metalloproteinase (MMP) inhibitor, on collagen accumulation by smooth muscle cells (SMCs). A long-term in vitro ascorbate supplemented SMC-extracellular matrix model system was established. After 2 and 4 weeks, doxycycline increased collagen content (from 3.6 to 5.7 and 7.8 to 10.9 ug/cm2), but did not affect MMP-2 secretion in A10 (a rat embryonic SMC line) and primary rat thoracic aortic SMC cultures. In doxycycline treated primary SMCs, there was an immediate and sustained increase in procollagen alpha 1(I) mRNA level (from 115% to 190% of GAPDH expression). However, the proportion of fibrillar versus non-fibrillar collagen was reduced. Under transmission electron microscopy, the collagen fibers were associated with amorphous aggregates, appeared to be nonassembled collagen monomers. In conclusion, doxycycline is a direct regulator of collagen synthesis by SMCs.

The Physical Object
Pagination121 leaves.
Number of Pages121
ID Numbers
Open LibraryOL19512735M
ISBN 100612954625


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Effects of doxycycline regulation on fibrillar collagen production in long term smooth muscle cell culture by Elsa Hin-Yee Liu Download PDF EPUB FB2