A cell-permeable, orally bioavailable natural product isolated from the plant species, Piper longum L, which selectively induces cell death in cancer cells that express both wild-type and mutant p53, dose-dependently from 1-15uM, but not in primary normal cells and non-transformed immortalized cells. It significantly enhances wild-type p53 and PUMA expression, and inhibits the expression of several pro-survival proteins, including BCL2, surviving, and XIAP, in various types of cancer cells, but not in normal cells. It elicits ROS and apoptosis in several human cancer cells (EJ, MDA-MB-231, U2OS and MDA-MB-435), possibly through interaction with oxidative stress responders such as GSTP1 and CBR1, and can be reversed by NAC (3mM) in EJ cells. Additionally, it exhibits anti-tumor effects and inhibits the formation of blood vessels in xenograft-tumor mice without obvious toxicity, and inhibits tumor growth and their associated metastases in a MMTV-PyVT breast cancer transgenic mouse model (2.4mg/kg, daily for two weeks, i.p.), which is more effective than paclitaxel.
Formula:C17H19NO5
Molecular Weight:317.3
Solubility:DMSO
Storage and Stability:Lyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile buffer or dH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
