지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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Human NK cells, identified 30 years ago based on their ability to spontaneously kill tumor cells, constitute a subset of lymphocytes, which play an important role in the first line of immune defense and the effective function of these cells are enhanced by cytokines. Lung carcinoma has been one of the most commonly diagonosed cancer as well as the leading cause of cancer death in male. Here we provide the evidence that human natural killer cells has inhibitory effects on tumor growth of human lung cancer cell NCI-H460 (non-small cell lung cancer). Enriched NK cell population was obtained by 2 weeks cultivation in interleukin-2(IL-2)-containing medium. The resulting population comprised 26% CD3$^+$ cells, 9% CD3$^+$CD4$^+$ cells, 16% CD3$^+$CD8$^+$ cells, 76% CD56$^+$ cells, 6% CD3$^+$CD56$^+$ cells and 70% CD3$^-$CD56$^+$ cells. Activated NK cells at doese of 2.5, 5, and 10 million cells per mouse inhibited 2%, 12% and 45% of NCI-H460-induced tumor growth in nude mouse xenograft assays, repectively. This result suggests that NK cell-based immunotherapy may be used as an adoptive immunotherapy for lung cancer patients.
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