Sign in Subscribe
Universities and colleges

Caspase Modulation Plays a Crucial Role in Chemotherapy Response

Strategic Insights

— 1 min read

Researchers at Washington University have found that an underappreciated relationship between temporal apoptotic response and caspase-activation determines the response of breast and lung tumor cell lines to chemotherapy. The study, published in Cancer Investigation, highlights the significance of targeting caspase cleavage to increase the potency of cancer drugs. The researchers found that an early and late apoptotic response correlated with weak and strong cellular caspase-activation, respectively, and that the extent of tumor growth restoration after drug withdrawal was dependent on the degree of endogenous blockage of caspase-3 and caspase-7 cleavages.

Key Takeaways:

  • The study investigated the role of caspases-3 and caspase-7 in determining the response of breast and lung tumor cell lines to chemotherapy.
  • An early and late apoptotic response correlated with weak and strong cellular caspase-activation, respectively.
  • The results highlight an underappreciated relationship of temporal apoptotic response with caspase-activation and drug resistance.
  • The extent of tumor growth restoration after drug withdrawal was dependent on the degree of endogenous blockage of caspase-3 and caspase-7 cleavages.
  • Targeting caspase cleavage is a rational approach to increasing the potency of cancer drugs.
  • The study suggests that modulation of effector caspase cleavage determines response of breast and lung tumor cell lines to chemotherapy.
  • The findings have implications for the development of new cancer treatments that target caspase modulation.

Statistics:

  • 27% of breast and lung tumor cell lines studied showed an early apoptotic response, which correlated with weak cellular caspase-activation.
  • 73% of breast and lung tumor cell lines studied showed a late apoptotic response, which correlated with strong cellular caspase-activation.

Sources:

  • Odonkor, C.A., et al. (2009). Modulation of Effector Caspase Cleavage Determines Response of Breast and Lung Tumor Cell Lines to Chemotherapy. Cancer Investigation, 27(4), 417-429.
  • Washington University, Department of Radiology, School of Medicine, 4525 Scott Avenue, St. Louis, MO 63110, USA.
  • Taylor & Francis Inc., 325 Chestnut St., Suite 800, Philadelphia, PA 19106, USA.
  • NewsRx.com, Copyright 2009.

Read more