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题目:: Cytotoxic function of gamma delta (gamma/delta) T cells against pamidronate-treated cervical cancer cells.
作者:: Lertworapreecha(Monthon),Patumraj(Suthiluk),Niruthisard(Somchai),Hansasuta(Pokrath),Bhattarakosol(Parvapan)
状态:: 发布时间2013-11-15 , 更新时间 2013-11-15
期刊:: Indian J Exp Biol
摘要:: The cytotoxic function of polyclonal expanded gamma/delta T cells against pamidronate-treated cervical cancer cells in vitro and in vivo were determined. The gamma/delta T cells were isolated and purified from PBMCs by using miniMACS and were later treated with 10 microM pamidronate. The expansion of gamma/delta T cells was 15 times more than the non-stimulated cells. Among the expanded gamma/delta T cells, 47% were Vgamma9/Vdelta2 T cells with a purity of 87%. Analyzing the cytotoxic function of gamma/delta T cells against 3 cervical cancer cells in vitro by LDH cytotoxicity test revealed that the killing efficacy increased if the cervical cancer cells (HeLa, SiHa and CaSki) were pretreated with pamidronate. The presence of CD107 on gamma/delta T cells indicated the degranulation of perforin and granzyme pathway is one of the mechanisms used by the gamma/delta T cells to kill cancer cells. The killing ability of gamma/delta T cells against cancer cells in vivo was preliminary assessed by using mouse baring HeLa cells. The results demonstrated that gamma/delta T cells induce apoptosis in tumor cells. Our study supports the usefulness of gamma/delta T cells in future development of immunotherapy for cervical cancer.
语言:: eng
DOI:

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