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Vitamin A (Retinoids) Regulation Of Mouse Melanoma Growth And Differentiation, Richard Niles
Vitamin A (Retinoids) Regulation Of Mouse Melanoma Growth And Differentiation, Richard Niles
Richard M Niles
The incidence of melanoma is rapidly increasing in the U.S. population. At the present, there is no effective chemotherapy against invasive melanoma. At our laboratory, we have been studying retinoic acid (RA)-induced growth arrest and differentiation in the B16 murine melanoma cell model. Several immediate-early gene targets of RA were identified by gene arrays. In one of these genes, T-box binding protein-2 (Tbx-2), an RA response element, was identified in the promoter region that mediates the RA responsiveness of this gene. RA also induces a sixfold to eightfold increase in protein kinase C (PKC)α RNA and protein. This gene is …
Pkc Inhibition Increases Gap Junction Intercellular Communication And Cell Adhesion In Human Neuroblastoma, M. Morley, C. Jones, M. Sidhu, V. Gupta, S. Bernier, W. Rushlow, Daniel Belliveau
Pkc Inhibition Increases Gap Junction Intercellular Communication And Cell Adhesion In Human Neuroblastoma, M. Morley, C. Jones, M. Sidhu, V. Gupta, S. Bernier, W. Rushlow, Daniel Belliveau
Daniel J. Belliveau
Abstract Gap junction intercellular communication and cell–cell adhesion are essential for maintaining a normal cellular phenotype, including the control of growth and proliferation. Loss of either cell–cell adhesion or communication is common in cancers, while restoration of function is associated with tumor suppression. Protein kinase C (PKC) isozymes regulate a broad spectrum of cellular functions including growth and proliferation, and their overexpression has been correlated with carcinogenesis. Consequently, PKC inhibitors are currently undergoing clinical trials as an anti-cancer agents although the precise cellular alterations induced by PKC inhibitors remain to be elucidated. In the current study, the effects of PKC …