CD40LG and in situ carcinoma: We used the GEO database to obtain 527 CIS-related targets and obtained 12 intersection targets by taking the intersection with the XXMD targets, namely CD14, PTGS2, STAT1, CYP1B1, AKR1C3, AKR1B1, HMGCR, STAT3, MMP9, HIF1A, CD40LG, and HK2.