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  • Title: High membrane-associated protein kinase C activity correlates to tumorigenicity but not anchorage-independence in a clone of mouse NIH 3T3 cells.
    Author: Raptis L, Marcellus RC, Whitfield JF.
    Journal: Exp Cell Res; 1993 Jul; 207(1):152-4. PubMed ID: 8319767.
    Abstract:
    Anchorage-dependent, nontumorigenic rat F111 fibroblasts have a low level of membrane-associated protein kinase C (PKC) activity. After expression of the polyoma virus middle tumor antigen this activity increased, the cells grew in agar and formed tumors after injection into syngeneic rats or nude mice. Contrary to F111, a clone of mouse NIH 3T3 fibroblasts has a high membrane-associated PKC activity and is as tumorigenic as polyoma-transformed cells, although this clone is still anchorage-dependent. Therefore, membrane-associated PKC activation might be one of the signals leading to tumorigenicity but not necessarily anchorage-independence.
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