The effect of UV-light (240-390 nm) in doses of 151 and 755 J/m² on the expression of membrane markers CD5, CD19, CD20 in human peripheral blood B cells was studied by flow cytometry. In 24 h after exposure to UV light, we observed activation of processes accompanied by structural rearrangements of B-cell membranes leading to changes in the expression of receptor molecules: the content of of CD19 and CD20 increased due to activation of the synthesis of these proteins, while the content of CD5 decreased. The percentage of CD5⁺ cells decreased over 24 h after UV-irradiation of lymphocytes, while addition of autologous plasma to the incubation medium produced a photoprotective effect on CD5⁺ cells.

^{通过流式细胞术研究了151和755 J/m 2}剂量的紫外光（240-390 nm）对人外周血B细胞膜标志物CD5、CD19、CD20表达的影响。在暴露于紫外线后 24 小时，我们观察到伴随 B 细胞膜结构重排的过程的激活，导致受体分子表达的变化：CD19 和 CD20 的含量由于这些蛋白质合成的激活而增加, 而 CD5 的含量下降。^{在对淋巴细胞进行紫外线照射后，CD5 +}细胞的百分比在 24 小时内下降，而在培养基中加入自体血浆对 CD5 ⁺细胞产生了光保护作用。