Researchers found that the Wnt5a protein, secreted by inflammatory fibroblasts within cancerous tumors, inhibits angiogenesis and consequently promotes hypoxia within tumors. Hypoxic conditions help sustain the inflammatory fibroblasts, which also secrete the growth factor epiregulin, thereby promoting tumor growth. This newly proposed mechanism for tumor growth offers a promising new target for cancer therapies and possibly other conditions linked to inflammation, such as inflammatory bowel disease.
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