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(名词解析)

B1细胞(B1 lymphocyte)

正确答案

又称CD5+B细胞,其主要特征是:膜表面只表达mIgM而不表达mIgD;产生抗体不依赖T细胞,无免疫记忆;对TI抗原应答,产生的抗体类别为低亲和性IgM。

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