SNHG3 and cancer: In contrast, for individual cancers, SNHG3 behaved more similarly to RCC1, especially in LGG, LIHC, PCPG, THYM, etc. In THYM, RCC1/SNHG3 was positively correlated with immune infiltration of CD8+ and CD4+ T cells and negatively correlated with immune infiltration of macrophage, NK cells, and cancer associated fibroblast (CAF).