Activity over Abundance: ADAMTSL4 Unlocks Latent TGFβ1 in Cancer Cachexia.

ADAMTSL4 from tumors promotes tissue wasting in cancer cachexia by activating latent TGFβ1, revealing a new post-secretory control mechanism.

• Why it matters: Cancer cachexia involves complex interorgan communication that leads to severe tissue wasting, and understanding its molecular drivers could enable targeted therapies to improve patient outcomes.
• What they did: Machado and colleagues identified that tumor-secreted ADAMTSL4 promotes cachexia by locally activating latent TGFβ1, highlighting a novel pathway in tumor-induced tissue wasting.
• The result: This discovery suggests that targeting ADAMTSL4 or its pathway may offer new therapeutic opportunities to mitigate cachexia in cancer patients.