Cancer is a condition in which abnormal cells grow uncontrollably and spread to other parts of the body.A key molecule for cancer metastasis has been identified as a molecule also involved in cardiovascular disease, suggesting a viable treatment strategy for both diseases at the same time.
Oxidized-LDL accumulates in malignant tumors much more than in non-malignant ones . This attracts neutrophils to malignant tumors , but not to non-malignant ones . Credit: Takuya Tsumita, et al. International Journal of Cancer. May 24, 2022).Hokkaido University In contrast to non-metastasizing tumors, metastasizing tumors produce proteoglycan molecules, which attach to and accumulate LDL on the walls of blood arteries. The LDL that is bound is oxidized. Its receptor, known as “LOX-1,” is likewise abundant in the blood vessel-lining endothelial cells of metastasizing tumors. They discovered that this leads these cells to create inflammatory signals that attract neutrophils.
As the team hypothesized, this sequence of interactions observed in malignant tumors is not novel: it occurs in atherosclerosis, the hardening of blood vessels. “Atherosclerosis and cancer appear to be completely different diseases, but they share several common pathophysiological features in the blood vessels,” says Kyoko Hida.
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