| Literature DB >> 2352925 |
E Melloni1, S Pontremoli, B Sparatore, M Patrone, F Grossi, P A Marks, R A Rifkind.
Abstract
Induction of differentiation in murine erythroleukemia cells (MELCs) involves a protein kinase C (PKC)-mediated step. Vincristine-resistant cells respond more rapidly to hybrid polar/apolar inducers than the parental cells. These vincristine-resistant MELCs contain elevated levels of the beta isozyme of PKC (PKC-beta). Exogenous homologous murine PKC-beta, incorporated into permeabilized MELCs, accelerates induced differentiation. Neither rat PKC-beta, nor mouse PKC-alpha, nor rat PKC-alpha, incorporated into permeabilized MELCs, is effective in altering the kinetics of induced differentiation. This provides direct evidence for a rate-limiting role for this PKC isozyme during N,N'-hexamethylenebisacetamide-mediated induced differentiation of a transformed cell.Entities:
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Year: 1990 PMID: 2352925 PMCID: PMC54125 DOI: 10.1073/pnas.87.12.4417
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205