Methods and compositions for regulation of cell aging, carcinogenesis and reprogramming

Abstract

Compositions and methods described herein include somatic cells that are competent for reprogramming and malignant transformation and are characterized by a reduction of the levels of Sp100 in the cells, cells having markers of pluripotent stem cells, and methods for preparing same. Methods for reversably regulating aging or reprogramming to pluripotency in a somatic cell involve modulating the expression of Sp100 therein. Methods and compositions for retarding the growth of or suppressing unwanted cell proliferation involve expressing, inducing expression of, or upregulating, Sp100 in a targeted cell that is undergoing unrestricted proliferation or replication or increasing exposure to Sp100 in the environment or microenvironment of the targeted cell. Also disclosed are methods for treating a proliferative disease or condition by increasing expression or levels of Sp100 in the targeted cell or its environment.

Dependencies are inferred from the claim text.