1992 Fiscal Year Final Research Report Summary
Tyrosine phosphrylating protein critical for cell-cell adhesion
| Project/Area Number |
03670139
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Pathological medical chemistry
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| Research Institution | Nagoya University |
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Principal Investigator |
HAMAGUCHI Michinari Nagoya Univ. School of Med. Asso. Prof., 医学部, 助教授 (90135351)
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| Project Period (FY) |
1991 – 1992
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| Keywords | src / tyrosine phosphorylation / cadherin / catenin / cytoskeleton |
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| Research Abstract |
Transformation of chick embryonic fibroblasts with Rous sarcoma virus strongly suppresses N-cadherin-mediated cell-cell adhesion, without inhibiting its expression. This suppression is correlated with tyrosine phosphorylation of N-cadherin and catenins, the cadherin-associated proteins, which are know to regulate cadherin function. Experiments with non-myristylation and temperature-sensitive mutants of RSV and with herbimycin A, a potent inhibitor of tyrosine kinases, suggest that both the suppression of cell adhesion and tyrosine phosphorylation of catenins are highly transformation-specific.
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