Multiple myeloma is a cancer of blood plasma cells.

多发性骨髓瘤是一种血浆细胞癌症。

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It develops when abnormal plasma cells in bone marrow multiply and accumulate, eventually damaging bones and other tissues in the body, and finally overwhelming the immune system.

其病因是骨髓中异常的血浆细胞大量增殖和积累，进而破坏骨骼和身体其他组织，最后摧毁整个免疫系统。

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The plasma cells and erythrocyte were unstained in the splenic red pulp.

红髓中的浆细胞和红细胞不染色。

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So, these memory cells are a way that your immune system keeps track of antigens that it's been exposed to for even if maybe the plasma cells that were producing antibody in response to the initial exposure have died and disappeared.

所以,这些记忆细胞,是人体免疫系统记忆抗原的一种方法,即使由浆细胞产生的抗体,在初次免疫应答中全部被消灭,记忆细胞仍然能迅速分化为抗体分泌细胞

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So not all of the B-cells that are stimulated become plasma cells or antibody secreting cells.

所以,并不是所有的B淋巴细胞,被刺激分化成为,浆细胞或是抗体分泌细胞

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They believe that in some women plasma can stimulate fat cells and cause them to release excessive amounts of fatty acids and other toxic products triggering pre-eclampsia.

BBC: NEWS | Health | Body fat link to pre-eclampsia