Cancer Biology


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1 Q&A 42209 Views Sep 5, 2013
A hallmark of cancer-associated inflammation is the infiltration of leukocytes into tumors, which is believed to be recruited by chemokines. Some infiltrating leukocytes such as macrophages often promote tumor growth by producing growth-inducing and angiogenic factors. Here, we described a method of isolating tumor-infiltrating leukocytes with Percoll density gradient, because Percoll possesses a low viscosity, a low osmolarity and no toxicity to cells. Different leukocyte populations are isolated based on their density and collected at the interface between 40% and 80% discontinuous Percoll gradient.

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