Outcomes in Advanced Breast Cancers May be Predicted by Their Calpain Protein Levels

Outcomes in Advanced Breast Cancers May be Predicted by Their Calpain Protein Levels
Proteins from the calpain family may be associated with improved prognosis in women with breast cancer who received chemotherapy to shrink their tumors prior to surgery, researchers at The University of Nottingham report. The study, "The calpain system is associated with survival of breast cancer patients with large but operable inflammatory and non-inflammatory tumours treated with neoadjuvant chemotherapy," published in Oncotarget, revealed a likelihood of better outcomes for women with high levels of calpain in their primary biopsies and treated with chemotherapy followed by surgery, compared to those with low levels of calpain. "We are passionate about understanding how breast cancer gains the ability to spread around the body, and what makes certain cancers resistant to treatment, so we can improve survival," the study's senior author, Professor Stewart Martin with the university's Translational and Radiation Biology Research group, said in a press release. "The results increase our understanding of this important protein in breast cancer, particularly in poor prognostic groups, which may be the key to unlocking effective ways to target these proteins to improve patient outcomes." Calpain proteins are involved in a variety of important cellular functions, including cell signaling, motility, death, and survival. Their
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