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English Abstract
Journal Article
[Effects of Different Stimulators on Proliferation of Peripheral Blood Lymphocyte Subsets].
Zhongguo Shi Yan Xue Ye Xue za Zhi 2018 December
OBJECTIVE: To investigate the effects of different stimultors (PHA, PMA and IL-2) and culture systems (PBMC and whole blood) on the proliferation of human peripheral blood lymphocyte subsets, so as to provide the experimental basis for selecting the appropriate system according to the experimental purposes.
METHODS: A total of 10 ml serum samples were collected from healthy volunteers (n=6). The 300 μl whole blood was directly used to detect lymphocyte subsets by flow cytometry. The 400 μl whole blood were inoculated respectively with 3 different stimulators at 37℃ and 5% CO2 for 60 h; Three different stimulators were also added to the PBMC which were isolated from 2 ml whole blood. Then the proliferation ability of lymphocyte subsets was analyzed by flow cytometry.
RESULTS: After the PBMC were stimulated with PHA, CD4- CD8- CD3+ lymphocytes were the most subset; The proportion of CD3+ CD4+ T lymphocytes and CD3- CD19+ B lymphocytes decreased after being stimulated by PMA (P<0.01, P<0.05); the lymphocyte subset ratio had no significant change after being stimulated by IL-2. After the whole blood system was stimulated with PHA, the CD4+ /CD8+ T lymphoblasts were main subsets, the counts of B lymphocytes and NK cells were reduced; after being stimulated with PMA, the number of CD8+ CD3+ T lymphoblast and CD4- CD8- T lymphocytes increased, the B/NK cells were not distinguished with the surface markers; after the whole blood system was stimulated with IL-2, the proportion of NK cells significantly increased (P<0.05).
CONCLUSION: Lymphocyte proliferation stimulated by PMA is the fastest, while the effect of IL-2 on the lymphocyte subset proportion stimulated by IL-2 is the minimal. After being stimulated by PHA the division cycles of lymphocyte are the most.
METHODS: A total of 10 ml serum samples were collected from healthy volunteers (n=6). The 300 μl whole blood was directly used to detect lymphocyte subsets by flow cytometry. The 400 μl whole blood were inoculated respectively with 3 different stimulators at 37℃ and 5% CO2 for 60 h; Three different stimulators were also added to the PBMC which were isolated from 2 ml whole blood. Then the proliferation ability of lymphocyte subsets was analyzed by flow cytometry.
RESULTS: After the PBMC were stimulated with PHA, CD4- CD8- CD3+ lymphocytes were the most subset; The proportion of CD3+ CD4+ T lymphocytes and CD3- CD19+ B lymphocytes decreased after being stimulated by PMA (P<0.01, P<0.05); the lymphocyte subset ratio had no significant change after being stimulated by IL-2. After the whole blood system was stimulated with PHA, the CD4+ /CD8+ T lymphoblasts were main subsets, the counts of B lymphocytes and NK cells were reduced; after being stimulated with PMA, the number of CD8+ CD3+ T lymphoblast and CD4- CD8- T lymphocytes increased, the B/NK cells were not distinguished with the surface markers; after the whole blood system was stimulated with IL-2, the proportion of NK cells significantly increased (P<0.05).
CONCLUSION: Lymphocyte proliferation stimulated by PMA is the fastest, while the effect of IL-2 on the lymphocyte subset proportion stimulated by IL-2 is the minimal. After being stimulated by PHA the division cycles of lymphocyte are the most.
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