CXCR5 and systemic lupus erythematosus: In k-means clustering analysis, the information of the Ki-67+ proportions of 12 ICPs (cMo, APC, dnCD3T, CD8Tem, oCD4Tcm, eTreg, CXCR5− nB, CXCR5− NSMB, CXCR5− SMB, CXCR5− DNB, PB, and PC) that correlated with SLE clinical phenotype were used (Fig. 5A).