Gene expression of metalloproteinases and their inhibitor in renal tissue of New Zealand black/white F1 mice.

Abstract

1. The present study was carried out to determine how levels of the mRNA of metalloproteinases (metalloproteinase-1, 72 kDa type IV collagenase, metalloproteinase-3 and 92 kDa type IV collagenase) and tissue inhibitor of metalloproteinases are regulated in the renal tissues of New Zealand Black/White F1 mice. 2. mRNA levels for metalloproteinase-1, 72 kDa type IV collagenase, metalloproteinase-3 and tissue inhibitor of metalloproteinases increased significantly with the progression of nephritis in New Zealand Black/White F1 mice. 3. At 48 weeks of age, the levels of mRNA for metalloproteinase-1, 72 kDa type IV collagenase, metalloproteinase-3 and tissue inhibitor of metalloproteinases increased by 8-, 4-, 8- and 15-fold, respectively, in the renal tissues of New Zealand Black/White F1 mice compared with New Zealand White mice. 4. In the kidneys of New Zealand White mice, however, the mRNA levels of these proteins changed little throughout the experimental period. 5. We could not detect expression of mRNA for 9 2 kDa type IV collagenase in the renal tissue of New Zealand Black/White F1 mice at 8 weeks of age or in New Zealand White mice at 8, 24 or 48 weeks of age, whereas we could detect expression of mRNA for this protein in New Zealand Black/White F1 mice at 24 and 48 weeks of age when mononuclear cells had infiltrated the interstitium and surrounding blood vessels. 6. At 24 weeks of age, New Zealand Black/White F1 mice were divided into two groups and received either methylprednisolone or saline injection for 24 weeks.(ABSTRACT TRUNCATED AT 250 WORDS)

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@article{Nakamura1993GeneEO, title={Gene expression of metalloproteinases and their inhibitor in renal tissue of New Zealand black/white F1 mice.}, author={Tadashi Nakamura and Isao Ebihara and Shigehiro Osada and Toru Takahashi and M. Yamamoto and Yasuhiko Tomino and Hikaru Koide}, journal={Clinical science}, year={1993}, volume={85 3}, pages={295-301} }