KCND2 and gastric cancer: To learn more about the impact of KCND2 on gastric cancer in animal experiments and further understand its potential mechanisms, murine‐derived gastric cancer cells MFC with control or KCND2 knockdown were subcutaneously injected into 615 mice, followed by intraperitoneal injection of DMSO or LPS, when the tumors grew large enough to be visualized.