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The lncRNA NBR2 was downregulated and M2 polarization was abundant in CRC patients. A) The expression of the lncRNA NBR2 in the tissues was evaluated by qRT-PCR. B) The expression level of TNF-α, HLA-DR, Arg-1, CD163, CD206, and IL-4 in the tissues was determined by western blot (**P < 0.01, vs. Control)
