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据报道用抗ＣＤ4 3的单克隆抗体证实不同分化阶段的Ｂ细胞可分为ＣＤ4 3+ Ｂ细胞或ＣＤ4 3 Ｂ细胞两群。因此有人推断ＣＤ4 3+ Ｂ细胞如同ＣＤ5 + Ｂ细胞一样代表一个独立的Ｂ细胞系。本实验表明Ｂ细胞在美州商陆 (ＰＷＭ )刺激下于培养第 2天ＣＤ4 3表达明显增加 ,这一结果表
It has been reported that monoclonal antibodies against CD4 3 demonstrate that B cells of different differentiation stages can be divided into two groups of CD4 3+ B cells or CD4 3 B cells. Therefore, it has been postulated that CD4 3+ B cells represent an independent B cell line as CD5 + B cells. This experiment showed that B cells significantly increased CD4 2 expression on the second day of culture after stimulated by Phytolacca americana