Recombinant human müllerian inhibiting substance inhibits epidermal growth factor receptor tyrosine kinase.

F. G. Cigarroa, J. P. Coughlin, P. K. Donahoe, M. F. White, N. Uitvlugt, D. T. MacLaughlin

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Autophosphorylation of the epidermal growth factor (EGF) receptor in A-431 cells and plasma membrane fractions was inhibited by partially purified recombinant human Müllerian Inhibiting Substance (MIS). Immunoprecipitation of the EFG receptor using anti-EGF receptor or anti-phosphotyrosine antibodies, and phosphoamino acid analysis of this receptor, demonstrated that MIS specifically inhibited EGF-induced tyrosine phosphorylation. Inhibition of EGF receptor autophosphorylation by MIS in membrane preparations was not affected by increasing concentrations of EGF, manganese or [gamma-(32)P] ATP. Thus, it is unlikely that MIS competes for EGF binding sites or sequesters substrate. Immunoabsorption of MIS with anti-human MIS antibody blocked the MIS inhibition of EGF receptor autophosphorylation, indicating that the inhibition was due to MIS. Our data suggest that MIS regulates the activity of the EGF receptor tyrosine kinase in A-431 cells.

Original languageEnglish (US)
Pages (from-to)179-191
Number of pages13
JournalGrowth factors (Chur, Switzerland)
Volume1
Issue number2
StatePublished - 1989
Externally publishedYes

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Epidermal Growth Factor Receptor
Protein-Tyrosine Kinases
Epidermal Growth Factor
Cell membranes
Cell Membrane
Phosphoamino Acids
Phosphotyrosine
Phosphorylation
Antibodies
Manganese
Immunoprecipitation
Tyrosine
Anti-Idiotypic Antibodies
Adenosine Triphosphate
Binding Sites
Membranes
Substrates

ASJC Scopus subject areas

  • Cell Biology

Cite this

Cigarroa, F. G., Coughlin, J. P., Donahoe, P. K., White, M. F., Uitvlugt, N., & MacLaughlin, D. T. (1989). Recombinant human müllerian inhibiting substance inhibits epidermal growth factor receptor tyrosine kinase. Growth factors (Chur, Switzerland), 1(2), 179-191.

Recombinant human müllerian inhibiting substance inhibits epidermal growth factor receptor tyrosine kinase. / Cigarroa, F. G.; Coughlin, J. P.; Donahoe, P. K.; White, M. F.; Uitvlugt, N.; MacLaughlin, D. T.

In: Growth factors (Chur, Switzerland), Vol. 1, No. 2, 1989, p. 179-191.

Research output: Contribution to journalArticle

Cigarroa, FG, Coughlin, JP, Donahoe, PK, White, MF, Uitvlugt, N & MacLaughlin, DT 1989, 'Recombinant human müllerian inhibiting substance inhibits epidermal growth factor receptor tyrosine kinase.', Growth factors (Chur, Switzerland), vol. 1, no. 2, pp. 179-191.
Cigarroa, F. G. ; Coughlin, J. P. ; Donahoe, P. K. ; White, M. F. ; Uitvlugt, N. ; MacLaughlin, D. T. / Recombinant human müllerian inhibiting substance inhibits epidermal growth factor receptor tyrosine kinase. In: Growth factors (Chur, Switzerland). 1989 ; Vol. 1, No. 2. pp. 179-191.
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