Protein ASPA identified as natural regulator limiting cancer progression

An international research team co-led by the Institute of Biomedicine and Biotechnology of Cantabria and CIC bioGUNE has identified a natural molecular mechanism that limits the progression of various cancer types. The study, published in Nature Communications, reveals that the ASPA protein acts as a regulator that prevents the activation of cancer-associated fibroblasts (CAFs), cells in the tumor microenvironment that drive tumor growth, invasion, and metastasis Source: infobaeSource: elconfidencial.

Key findings

• ASPA levels decrease as tumors progress. Communication between cancer cells and healthy tissue causes a progressive drop in ASPA, allowing fibroblasts to become tumor-promoting Source: infobae.
• ASPA blocks the TGFβ signaling pathway. This pathway is a major driver of CAF activation; by inhibiting it, ASPA maintains fibroblast control Source: elconfidencial.
• Loss of ASPA is linked to more aggressive cancer. The protein could serve as a biomarker for identifying patients at higher risk of progression and metastasis Source: infobae.

Implications

The discovery highlights the importance of the tumor microenvironment and opens new avenues for using ASPA as a therapeutic target or diagnostic tool. The research team used multidisciplinary approaches, including single-cell sequencing, to characterize ASPA's role Source: elconfidencial.