42 research outputs found

    TRAIL, DR5, IL-12 ์œ ์ „์ž์˜ ๋™์‹œ๋ฐœํ˜„์„ ํ†ตํ•œ EMT6 ๋งˆ์šฐ์Šค ์œ ๋ฐฉ์•” ์„ธํฌ์˜ ์„ฑ์žฅ์–ต์ œ

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    Dept. of Biomedical Labortory Science/์„์‚ฌ[ํ•œ๊ธ€] ์ตœ๊ทผ ๋‹ค๋ฅธ ์น˜๋ฃŒ๊ธฐ์ „์„ ๊ฐ€์ง€๋Š” ์น˜๋ฃŒ ์œ ์ „์ž์˜ ๋™์‹œ๋ฐœํ˜„์€ ๋‹จ์ผ ์œ ์ „์ž ๋ฐœํ˜„์„ ํ†ตํ•œ ํ•ญ์•” ์œ ์ „์ž ์น˜๋ฃŒ๋ณด๋‹ค ๋” ํšจ๊ณผ์ ์ธ ๋ฐฉ๋ฒ•์œผ๋กœ ๋ณด๊ณ ๋˜๊ณ  ์žˆ๋‹ค. ์ข…์–‘์„ธํฌ๊ดด์‚ฌ์ธ์ž superfamily ์ค‘์˜ ํ•˜๋‚˜์ธ TRAIL (Tumor necrosis factor Related Apoptosis Inducing Ligand)์€ ์•”์„ธํฌ์˜ ์„ธํฌ์ž์‚ด์„ ์œ ๋„ํ•˜๋‚˜ ์ผ๋ฐ˜์„ธํฌ์—์„œ๋Š” ์„ธํฌ์ž์‚ด์„ ์œ ๋„ํ•˜์ง€ ์•Š๋Š” ๊ฒƒ์œผ๋กœ ์•Œ๋ ค์ ธ ์žˆ๋‹ค. ๋˜ํ•œ Death receptor 5 (DR5)๋„ ํšจ๊ณผ์ ์ธ ์„ธํฌ์ž์‚ด ์œ ๋„ํ•˜๋Š” ๊ฒƒ์œผ๋กœ ์ž˜ ์•Œ๋ ค์ ธ ์žˆ๋‹ค. ๋ฐ˜๋ฉดIL-12๋Š” ๋ณด์กฐ T ์„ธํฌ์˜ type-1์„ ์ž๊ทนํ•˜์—ฌ ํ•ญ์•”๋ฉด์—ญ๋ฐ˜์‘๊ณผ ์„ธํฌ์ž์‚ด์„ ์ฆ์ง„์‹œํ‚ค๋Š” ๋ฉด์—ญ์กฐ์ ˆ์ธ์ž๋กœ ๋ณด๋‹ค ์ž˜ ์•Œ๋ ค์ ธ ์žˆ๋‹ค. ๋ณธ ์‹คํ—˜์—์„œ ์ƒ์ฒด ์™ธ์—์„œ ๋ฐœํ˜„๋œ TRAIL์€ EMT6 ์œ ๋ฐฉ์•” ์„ธํฌ๋“ค์˜ ์„ฑ์žฅ์„ ์ €ํ•ดํ•˜์˜€๋‹ค. ํ•œํŽธ lipofection ๋˜๋Š” electroporation ๋ฐฉ๋ฒ•์„ ํ†ตํ•ด TRAIL (pFLAG-CMV1-ITRAD), DR5 (pDR5), IL-12 (pNGVL3-mIL12) ์œ ์ „์ž๋ฅผ ๋‹ค์–‘ํ•œ ์กฐํ•ฉ์œผ๋กœ ํ•˜์—ฌ ์ข…์–‘๋‚ด๋กœ ์ „๋‹ฌํ•˜์˜€๋‹ค. ์œ ์ „์ž๋ฅผ ํˆฌ์—ฌํ•˜์ง€ ์•Š์€ ๋Œ€์กฐ๊ตฐ๊ณผ ๋น„๊ตํ–ˆ์„ ์‹œ pFLAG-CMV1-ITRAD, pDR5, pNGVL3-mIL12์„ ํˆฌ์—ฌํ•œ ๋งˆ์šฐ์Šค์—์„œ EMT6 ์œ ๋ฐฉ์•”์ข… ์„ฑ์žฅ์ด ํšจ๊ณผ์ ์œผ๋กœ ์–ต์ œ๋จ์„ ํ™•์ธํ•˜์˜€๋‹ค. ๊ทธ ์ค‘ TRAIL, DR5, IL-12๋“ฑ ์„ธ๊ฐ€์ง€ ์œ ์ „์ž๋ฅผ ์กฐํ•ฉํ•˜์—ฌ ํˆฌ์—ฌํ•˜๋Š” ๋ฐฉ๋ฒ•์ด ๊ทธ ์™ธ์˜ ๋‹จ์ผ ์œ ์ „์žํˆฌ์—ฌ ๋˜๋Š” ๋‹ค๋ฅธ ์กฐํ•ฉ์˜ ์œ ์ „์žํˆฌ์—ฌ๋ณด๋‹ค ๋”์šฑ ํšจ๊ณผ์ ์œผ๋กœ ์ข…์–‘์„ฑ์žฅ์„ ์–ต์ œํ•˜๋Š” ๊ฒƒ์œผ๋กœ ํ™•์ธ๋˜์—ˆ๋‹ค. ๋ณธ ์‹คํ—˜์„ ํ†ตํ•ด์„œ TRAIL, DR5, IL-12๋“ฑ ์„ธ๊ฐ€์ง€ ์œ ์ „์ž์˜ ๋™์‹œ๋ฐœํ˜„ ๋ฐฉ๋ฒ•์ด ํ•ญ์•”์น˜๋ฃŒ๋ฅผ ์œ„ํ•œ ๋ณด๋‹ค ํšจ์œจ์ ์ธ ์น˜๋ฃŒ๊ธฐ์ˆ ์ž„์„ ์•Œ ์ˆ˜ ์žˆ์—ˆ๋‹ค. [์˜๋ฌธ]Recently, a number of reports support that co-expression of therapeutic genes having different therapeutic mechanisms may be a more effective strategy for anti-cancer gene therapy than single gene expression. TRAIL (Tumor necrosis factor related apoptosis inducing ligand) is a member of the tumor necrosis factor superfamily inducing apoptosis of tumor cells, not normal cells. Death receptor 5 (DR5) is also known to be a potent apoptosis inducer. IL-12 is a well-known immune modulator that promotes Th1-type anti-tumor immune responses and apoptosis of tumor as well. The expressed TRAIL clearly inhibited in vitro growth of EMT6 mammary carcinoma cells. In addition, intratumoral transfer of TRAIL (pFLAG-CMV1-ITRAD), DR5 (pDR5) and/or IL-12 (pNGVL3-mIL12) was performed by means of lipoplexes and electroporation. Compared to the untreated control group, treatment with pFLAG-CMV1-ITRAD, pDR5, or pNGVL3-mIL12 effectively inhibited EMT6 mammary carcinoma growth in mice. The triple combined administration of TRAIL, DR5, and IL-12 gene exhibited more effective inhibition of the tumor growth than any other combinations of the genes. These results provide further evidence that co-expression of anti-cancer therapeutic genes, such as TRAIL, DR5, and IL-12, may be an improved strategy for anti-cancer gene therapy.ope

    Suicide, Literature, and Shakespeare

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