Review for enhancing Cancer cell Apoptosis Using withania Somnifera -Based Nano-particles

Cancer treatment remains challenging due to the ability of cancer cells to avoid programmed cell death and grow uncontrollably. Conventional chemotherapy is effective but often causes serious damage to healthy cells. Because of this, plant-based compounds are being studied as safer alternatives. Withania somnifera (Ashwagandha) is a medicinal plant known for its anticancer compound, withaferin A. However, its clinical use is limited because of poor solubility, low bioavailability, and instability in the body. Nano-based drug delivery systems have been developed to overcome these limitations. Nanoformulations of Withania somnifera improve drug stability, enhance cellular uptake, and allow controlled release at tumor sites. Several studies show that these nanoformulations promote apoptosis in cancer cells through increased reactive oxygen species production, mitochondrial damage, activation of caspase enzymes, and regulation of apoptosis-related genes. Importantly, these nano-systems show selective toxicity toward cancer cells while causing minimal harm to normal cells. This makes Withania somnifera-based nanoformulations a promising approach for future cancer therapy.