Homo sapiens PDCD10 (programmed cell death 10, alias, “TF-1 cell apoptosis related gene 15, TFAR15”), cloned by means of cDNA-representational differences analysis, had been initially identified associated with cell apoptosis. Recent research suggested mutations within the PDCD10 gene or deletion were responsible for cerebral cavernous malformations, and PDCD10 was the third CCM gene. On the other hand, other research demonstrated that PDCD10 was strictly modulated and up regulated in many kinds of tumors, which implicated that PDCD10 participated in tumorous signal transduction. The recent research confirmed that PDCD10 interacts with MST4, a member of Ste20-related kinases, and the interaction promoted cell proliferation and transformation via modulation of the ERK-MARK pathway. In conclusion, all these demonstrate that PDCD10 has many biological effects, which suggests that it is a novel player in vascular morphogenesis and/or remodeling, as well as tumorigenesis and cancer progression.