Researchers at the University of Houston have identified a key molecular pathway responsible for cancer-related muscle wasting, a condition known as cachexia that affects the majority of patients with pancreatic cancer and significantly worsens survival outcomes. The study focuses on the IRE1α–XBP1 signaling pathway, which becomes abnormally activated in skeletal muscle during cancer progression. By suppressing this pathway in laboratory models, researchers were able to preserve muscle mass and strength even in the presence of aggressive tumors. Cachexia has long resisted effective treatment because it is driven by complex biological signals rather than simple nutritional deficits. This discovery offers a concrete biological target that could lead to therapies aimed at maintaining muscle integrity, improving patient quality of life, and potentially extending survival during cancer treatment. The findings were published in EMBO Molecular Medicine and represent a significant advance in understanding one of oncology’s most persistent and debilitating complications.
Source: University of Houston
Link:
https://www.uh.edu/news-events/stories/2025/december/12162025-muscle-wasting-cancer-kumar.php
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