Yes, caspase 9 can serve as a biomarker for apoptosis, particularly in studies evaluating the cytotoxic effects of new drugs or chemicals. By measuring caspase 9 activity, researchers can infer the extent of apoptosis induced by a compound, which is a critical parameter in determining its safety profile. Biomarkers like caspase 9 help in understanding the mechanism of action of toxicants and in the assessment of potential risks associated with exposure.
