GDF15 Reprograms the Microenvironment to Drive Liver Metastasis of Uveal Melanoma.

GDF15-driven remodeling of the liver microenvironment promotes uveal melanoma metastasis, with silencing of GDF15 reducing metastatic growth in models.

• Why it matters: Understanding how uveal melanoma interacts with the liver microenvironment is crucial for developing targeted therapies to prevent or treat metastasis, which is often fatal.
• What they did: Using single-cell RNA sequencing of tumor-hepatic stellate cell co-cultures, the study identified GDF15 as a key factor associated with metastatic UM, and tested its role through gene silencing and antibody blocking experiments.
• The result: Blocking GDF15 activity inhibited metastatic lesion growth by reducing extracellular matrix deposition and angiogenesis, highlighting GDF15 as a potential therapeutic target to hinder liver metastasis in UM.