中华临床医师杂志(电子版)
中華臨床醫師雜誌(電子版)
중화림상의사잡지(전자판)
CHINESE JOURNAL OF CLINICIANS(ELECTRONIC VERSION)
2013年
7期
3006-3010
,共5页
章烨%朱寿兴%申小苏%邬晓敏%时宏珍%史央
章燁%硃壽興%申小囌%鄔曉敏%時宏珍%史央
장엽%주수흥%신소소%오효민%시굉진%사앙
前列腺特异抗原%肽类%树突细胞%T淋巴细胞,细胞毒性
前列腺特異抗原%肽類%樹突細胞%T淋巴細胞,細胞毒性
전렬선특이항원%태류%수돌세포%T림파세포,세포독성
Prostate-specific antigen%Peptides%Dendritic cells%T-Lymphocytes,cytotoxic
目的观察以前列腺特异性抗原( PSA)负载的树突状细胞( DC)体外诱导特异性细胞毒性T淋巴细胞(CTLs)的能力。方法采集HLA-A2+晚期前列腺癌患者外周血,分离单核细胞(Mo)与外周淋巴细胞( PBL);将Mo诱导成DC后负载PSA多肽,用其反复致敏PBL(三次);ELISA法检测致敏细胞上清细胞因子分泌水平;MTT法检测致敏细胞杀伤靶细胞的能力。结果18例HLA-A2+晚期前列腺癌患者DC平均得率为(9.86±0.75)×106(每100 ml外周血),CD11c+HLA-DR+率为(92.79±3.42)%,其中CD80+率为(86.65±6.12)%,CD83+率为(83.54±5.22)%,CD86+率为(98.70±0.77)%。 PBLs致敏三次后,平均增殖(15.3±2.1)倍;致敏第21天上清液细胞因子水平分别为:IL-2(1897.8±143.9)pg/ml,IL-12(493.4±43.2)pg/ml,IFN-γ(2107.2±222.7)pg/ml,TNF-α(509.9±32.9)pg/ml,明显高于未致敏组(P<0.05),IL-10(213.1±19.9)pg/ml与对照组比较无显著差异;对负载多肽PSA的T2细胞株杀伤率明显高于对照组(P<0.05)。结论 PSA混合多肽负载的DC体外能有效地诱导特异性CTL,刺激Th1型细胞因子的分泌,为治疗型前列腺癌疫苗的研制提供科学依据。
目的觀察以前列腺特異性抗原( PSA)負載的樹突狀細胞( DC)體外誘導特異性細胞毒性T淋巴細胞(CTLs)的能力。方法採集HLA-A2+晚期前列腺癌患者外週血,分離單覈細胞(Mo)與外週淋巴細胞( PBL);將Mo誘導成DC後負載PSA多肽,用其反複緻敏PBL(三次);ELISA法檢測緻敏細胞上清細胞因子分泌水平;MTT法檢測緻敏細胞殺傷靶細胞的能力。結果18例HLA-A2+晚期前列腺癌患者DC平均得率為(9.86±0.75)×106(每100 ml外週血),CD11c+HLA-DR+率為(92.79±3.42)%,其中CD80+率為(86.65±6.12)%,CD83+率為(83.54±5.22)%,CD86+率為(98.70±0.77)%。 PBLs緻敏三次後,平均增殖(15.3±2.1)倍;緻敏第21天上清液細胞因子水平分彆為:IL-2(1897.8±143.9)pg/ml,IL-12(493.4±43.2)pg/ml,IFN-γ(2107.2±222.7)pg/ml,TNF-α(509.9±32.9)pg/ml,明顯高于未緻敏組(P<0.05),IL-10(213.1±19.9)pg/ml與對照組比較無顯著差異;對負載多肽PSA的T2細胞株殺傷率明顯高于對照組(P<0.05)。結論 PSA混閤多肽負載的DC體外能有效地誘導特異性CTL,刺激Th1型細胞因子的分泌,為治療型前列腺癌疫苗的研製提供科學依據。
목적관찰이전렬선특이성항원( PSA)부재적수돌상세포( DC)체외유도특이성세포독성T림파세포(CTLs)적능력。방법채집HLA-A2+만기전렬선암환자외주혈,분리단핵세포(Mo)여외주림파세포( PBL);장Mo유도성DC후부재PSA다태,용기반복치민PBL(삼차);ELISA법검측치민세포상청세포인자분비수평;MTT법검측치민세포살상파세포적능력。결과18례HLA-A2+만기전렬선암환자DC평균득솔위(9.86±0.75)×106(매100 ml외주혈),CD11c+HLA-DR+솔위(92.79±3.42)%,기중CD80+솔위(86.65±6.12)%,CD83+솔위(83.54±5.22)%,CD86+솔위(98.70±0.77)%。 PBLs치민삼차후,평균증식(15.3±2.1)배;치민제21천상청액세포인자수평분별위:IL-2(1897.8±143.9)pg/ml,IL-12(493.4±43.2)pg/ml,IFN-γ(2107.2±222.7)pg/ml,TNF-α(509.9±32.9)pg/ml,명현고우미치민조(P<0.05),IL-10(213.1±19.9)pg/ml여대조조비교무현저차이;대부재다태PSA적T2세포주살상솔명현고우대조조(P<0.05)。결론 PSA혼합다태부재적DC체외능유효지유도특이성CTL,자격Th1형세포인자적분비,위치료형전렬선암역묘적연제제공과학의거。
Objective To explore the potential of autologous dendritic cells ( DC) pulsed with HLA-A201-binding peptide PSA in inducing specific T cells response in vitro.Methods Advanced prostate cancer patients with positive HLA-A201 were enrolled and their monocytes isolated and induced into dendritic cells and pulsed with HLA -A201-binding peptide PSA .PBLs were primed by DCs every week for three times .The cytokine level of supernatant of CTLs was tested by ELISA method .The specific killing effect of CTLs was tested by MTT method .Results The numbers of DCs of eighteen advanced prostate cancer patients were (9.86 ±0.75) ×106(100 ml peripheral blood). CD11c+HLA-DR+(92.79 ±3.42 )%,CD80 +(86.65 ±6.12 )%,CD83 +(83.54 ±5.22 )%,CD86 +(93.70 ± 0.77)%.Proliferation index of PBLs primed by DCs three times was (15.3 ±2.1).Cytokine levels including IL-2, IL-12,IFN-γand TNF-αwere obviously higher than non-priming PBLs [(1897.8 ±143.9)pg/ml,(493.4 ±43.2) pg/ml,(2107.2 ±222.7)pg/ml,(509.9 ±32.9)pg/ml respectively](P <0.05),but IL-10 was no significant difference between priming CTLs and non-priming CTLs.The killing effect of CTLs was obviously higher than control group(P<0.05).Conclusions Dendritic cells pulsed with peptide PSA can induce special CTLs in vitro and stimulate CTLs secret cytokines .This will provide science basis for research of therapeutic vaccine for prostate cancer .