In vitro antigen presentation assays, in vivo administration of the bromodeoxyuridine coupled to flow cytometry assays assessed intra-islet T cell activation in the absence or presence of B cells.

• 离体实验测定抗原呈递活性；在体动物实验，用溴脱氧尿苷处理后以流式细胞术检测B细胞（存在或不存在时）对胰岛内T细胞活性的影响。