PKC alpha is one of the PKC family members. This kinase has been reported to play roles in many different cellular processes, such as cell adhesion, cell transformation, cell cycle checkpoint, and cell volume control. Knockout studies in mice suggest that this kinase may be a fundamental regulator of cardiac contractility and Ca2+ handling in myocytes. Increased activation of PKCα is associated with the growth and invasion of cancers. High levels of PKCα are linked to malignant brain cancer. Moreover, a high proliferation rate of glioma tumor cells is the result of overexpression of isozyme PKCα.