The enigmatic protein kinase C-eta

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7 Scopus citations


Protein kinase C (PKC), a multi-gene family, plays critical roles in signal transduction and cell regulation. Protein kinase C-eta (PKCη) is a unique member of the PKC family since its regulation is distinct from other PKC isozymes. PKCη was shown to regulate cell proliferation, differentiation and cell death. It was also shown to contribute to chemoresistance in several cancers. PKCη has been associated with several cancers, including renal cell carcinoma, glioblastoma, breast cancer, non-small cell lung cancer, and acute myeloid leukemia. However, mice lacking PKCη were more susceptible to tumor formation in a two-stage carcinogenesis model, and it is downregulated in hepatocellular carcinoma. Thus, the role of PKCη in cancer remains controversial. The purpose of this review article is to discuss how PKCη regulates various cellular processes that may contribute to its contrasting roles in cancer.

Original languageEnglish
Article number214
Issue number2
StatePublished - Feb 2019


  • Apoptosis
  • Cell proliferation
  • Differentiation
  • Drug resistance
  • PKCη
  • Protein kinase C
  • Senescence
  • Tumor promotion
  • Tumor suppression


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