GSDMB and colorectal cancer: Since cell morphological changes were the prerequisite for cell migration and abnormal cell migration underlined invasion and metastasis of cancer cells [22], we suspected that GSDMA, GSDMB, GSDMD and GSDME might be involved in colorectal cancer cell invasion and metastasis, and the former three might played as negative regulators while the last one played as a positive regulator.