Objective:To develop a novel artificial antigen-presenting system for efficiently inducing melanoma-specific CD8+CD28+ cytotoxic T lymphocyte（CTL） responses.Methods:Cell-sized Dynabeads? M-450 Epoxy beads coated wit...Objective:To develop a novel artificial antigen-presenting system for efficiently inducing melanoma-specific CD8+CD28+ cytotoxic T lymphocyte（CTL） responses.Methods:Cell-sized Dynabeads? M-450 Epoxy beads coated with H-2Kb:Ig-TRP2(181111K and anti-CD28 antibody were used as artificial antigen-presenting cells（aAPCs） lo induce melanoma-specific CD8*CD28’ CTL responses with the help of IL-2I and IL-I5.Dimer staining,proliferation,ELISPOT,and cytotoxicity experiments were conducted to evaluate the frequency and activity of induced CTLs.Results:Dimer staining demonstrated that the new artificial antigen-presenting system efficiently induced melanoma TRP2-specific CD8CD28' CTLs.Proliferation and ELISPOT assays indicated that the induced CTLs rapidly proliferate and produce increased IFN- y under the slimulalion of H-2K:Ig-TRP2-aAPCs,TL-15,and IL-21.In addition,cytoloxicily experiments showed lhat induced CTLs have specific killing activity of target cells.Conclusions:The new artificial antigen-presenting system including aAPCs plus IL-21 and IL-15 can induce a large number of antigen-specific CD8+CD28+ CTLs against the melanoma.Our study provides evidence for a novel adoptive immunotherapy against tumors.展开更多
目的:探讨CK19、Galectin-3及CD56在良恶性卵巢甲状腺肿鉴别诊断中的应用价值。方法:采用免疫组化法检测6例卵巢甲状腺癌和10例卵巢甲状腺肿组织中CK19、Galectin-3及CD56蛋白表达情况。结果:卵巢甲状腺癌组织中CK19、Galectin-3蛋白的...目的:探讨CK19、Galectin-3及CD56在良恶性卵巢甲状腺肿鉴别诊断中的应用价值。方法:采用免疫组化法检测6例卵巢甲状腺癌和10例卵巢甲状腺肿组织中CK19、Galectin-3及CD56蛋白表达情况。结果:卵巢甲状腺癌组织中CK19、Galectin-3蛋白的表达高于卵巢甲状腺肿组织(t=4.807,3.835,P均<0.05),CD56蛋白的表达低于卵巢甲状腺肿组织(t=3.105,P均<0.05)。分别利用CK19、Galectin-3及CD56蛋白表达水平绘制ROC曲线,曲线下面积(AUC)分别为0.983、0.933和0.867;以其中1个指标恶性即判定为恶性,则3者联合检测对良恶性卵巢甲状腺肿鉴别诊断的灵敏度可达100%。结论:CK19、Galectin-3及CD56对卵巢甲状腺肿良恶性的鉴别有很好的应用价值。Value of CK19,Galectin-3,and CD56 in the differential diagnosis about benign and malignant struma展开更多
基金supported,in part,by grants from the Program for New Century Excellent Talents in University(NECT-10-0098)the National Natural Scientific Foundation of China(Nos.81072161.81000769.81172139.and 81060183)+3 种基金Programs for Changjiang Scholars and Innovative Research Team in University(No. IRT1119)Innovative Research Team in Guangxi Natural Science Foundation (No.2011-18-5)Fund for Distinguished Young Scholars in Guangxi Natural Science Foundation(2012jjFA40005)Project of science and technology of Guangxi (1140003A-17)
文摘Objective:To develop a novel artificial antigen-presenting system for efficiently inducing melanoma-specific CD8+CD28+ cytotoxic T lymphocyte（CTL） responses.Methods:Cell-sized Dynabeads? M-450 Epoxy beads coated with H-2Kb:Ig-TRP2(181111K and anti-CD28 antibody were used as artificial antigen-presenting cells（aAPCs） lo induce melanoma-specific CD8*CD28’ CTL responses with the help of IL-2I and IL-I5.Dimer staining,proliferation,ELISPOT,and cytotoxicity experiments were conducted to evaluate the frequency and activity of induced CTLs.Results:Dimer staining demonstrated that the new artificial antigen-presenting system efficiently induced melanoma TRP2-specific CD8CD28' CTLs.Proliferation and ELISPOT assays indicated that the induced CTLs rapidly proliferate and produce increased IFN- y under the slimulalion of H-2K:Ig-TRP2-aAPCs,TL-15,and IL-21.In addition,cytoloxicily experiments showed lhat induced CTLs have specific killing activity of target cells.Conclusions:The new artificial antigen-presenting system including aAPCs plus IL-21 and IL-15 can induce a large number of antigen-specific CD8+CD28+ CTLs against the melanoma.Our study provides evidence for a novel adoptive immunotherapy against tumors.
文摘目的:探讨CK19、Galectin-3及CD56在良恶性卵巢甲状腺肿鉴别诊断中的应用价值。方法:采用免疫组化法检测6例卵巢甲状腺癌和10例卵巢甲状腺肿组织中CK19、Galectin-3及CD56蛋白表达情况。结果:卵巢甲状腺癌组织中CK19、Galectin-3蛋白的表达高于卵巢甲状腺肿组织(t=4.807,3.835,P均<0.05),CD56蛋白的表达低于卵巢甲状腺肿组织(t=3.105,P均<0.05)。分别利用CK19、Galectin-3及CD56蛋白表达水平绘制ROC曲线,曲线下面积(AUC)分别为0.983、0.933和0.867;以其中1个指标恶性即判定为恶性,则3者联合检测对良恶性卵巢甲状腺肿鉴别诊断的灵敏度可达100%。结论:CK19、Galectin-3及CD56对卵巢甲状腺肿良恶性的鉴别有很好的应用价值。Value of CK19,Galectin-3,and CD56 in the differential diagnosis about benign and malignant struma
