(A) Diagram of B cell receptor signal pathway. Four differentially expressed miRNAs (including miR-133b, miR-134, miR-433, and miR-628-5p) were selected as examples for examining miRNA-mRNA relationships in B cell receptor signal pathway. (B) miRNA-628-5p was down-regulated in the DSA+BOS− patients with over expression of its potential target, BTK. (C) miRNA-134 was down-regulated in the DSA+BOS− or DSA+BOS+ patients, while its potential target, BLNK, was up-regulated.