Fat Targeted Proapoptotic Peptide
A chimeric, 25-mer peptide that targets prohibitin, with potential antineoplastic activity. Prohibitin-targeting peptide 1 (prohibitin-TP01) consists of a fat-targeting motif (CKGGRAKDC), two repeats of a proapoptotic peptide motif (KLAKLAK) and a GG linker. This peptide binds specifically to prohibitin in the white adipose vasculature; upon receptor-mediated cell internalization, the ligand/receptor complex triggers apoptosis and results in ablation of white fat. Destruction of white fat may potentially have positive consequences for men with prostate cancer since a high level of white fat has been implicated as a critical contributing factor in poor prostate cancer outcome. Prohibitin, a multifunctional membrane-associated protein that is thought to regulate cell survival and growth, has been shown by immunohistochemical analysis to be expressed in the membrane of endothelial cells in white adipose tissue. Check for active clinical trials or closed clinical trials using this agent.