PNC-27

Description

PNC-27 Peptide
PNC-27 is a 27-amino acid peptide that has been studied for its potential to mitigate the activity and proliferation of cancer cells. It is derived from the third helix of the anti-cancer peptide α-helical segment of p53 (ASPP2), a protein involved in tumor suppression. PNC-27 has been suggested to induce cell death via necrosis in various cancer cell lines, including pancreatic cancer, ovarian cancer, and leukemia, among others.
Researchers speculate that the PNC-27 peptide may specifically target cancer cells while not appearing to interact with other cells. Initially synthesized in 2000 as a part of a research project associated with immunodeficiency, specifically HIV, this peptide was reported to exhibit the ability to bind with the double minute (HDM2) protein, which is deemed overly expressed on the membranes of the carcinogenic cells. Interestingly, PNC-27 does not appear to induce apoptosis, a common pathway for many anticancer research chemicals, but rather may act upon the cells via inducing necrosis. This mode of action suggests a direct, physical disruption of the plasma membrane, possibly mediated by the formation of pores that compromise cell integrity, leading to necrosis. More specifically, binding with this protein appears to perforate the membrane of cancer cells by forming holes and causing membranolysis. This allows for the influx of ions and the efflux of cellular contents, ultimately leading to cell death.(1)