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多肽疫苗

多肽疫苗的相关文献在1994年到2022年内共计262篇,主要集中在肿瘤学、基础医学、药学 等领域,其中期刊论文81篇、会议论文13篇、专利文献38565篇;相关期刊63种,包括生物学杂志、食品与药品、国际生物制品学杂志等; 相关会议11种,包括第三届京津冀畜牧兽医科技创新研讨会暨“瑞普杯”新思想、新方法、新观点论坛、中国畜牧兽医学会兽医公共卫生学分会成立大会暨第一次学术研讨会、沪、苏、闽暨全军生物技术药物研讨会等;多肽疫苗的相关文献由638位作者贡献,包括莫凡、陈荣昌、周秀卿等。

多肽疫苗—发文量

期刊论文>

论文:81 占比:0.21%

会议论文>

论文:13 占比:0.03%

专利文献>

论文:38565 占比:99.76%

总计:38659篇

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多肽疫苗

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  • 莫凡
  • 陈荣昌
  • 周秀卿
  • 林志伟
  • 马治明
  • 严维耀
  • 郑兆鑫
  • 韩宁
  • 于林增
  • 吕敏娜
  • 期刊论文
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  • 专利文献

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    • 许琼冠; 欧阳一彬; 谢镇明
    • 摘要: 目的:探索CTP修饰的EGFRvⅢ多肽疫苗是否可激活体内抗肿瘤免疫应答并抑制胶质瘤生长。方法:qPCR检测胶质瘤患者肿瘤和癌旁组织EGFR和EGFRvⅢ表达;荧光显微镜观察多肽疫苗CTP-V2在树突状细胞(DCs)中的定位情况;流式细胞术检测负载多肽疫苗DCs与CD8^(+)T细胞共孵育后T细胞增殖及CD69表达;体内抑瘤实验检测CTP-V2的体内抗肿瘤活性;免疫组织化学检测T细胞肿瘤浸润及肿瘤细胞凋亡情况。结果:qPCR结果显示,胶质瘤患者肿瘤组织中EGFR表达较癌旁组织显著升高(P<0.001),肿瘤组织EGFR和EGFRvⅢ表达呈正相关(R=0.58),且EGFR和EGFRvⅢ表达与胶质瘤患者不良预后相关;显微镜观察显示,CTP-V2可有效定位于DCs胞质区域;流式检测结果表明负载CTP-V2的DCs较负载V2的DCs可更显著地刺激CD8^(+)T细胞增殖(P<0.000 1)和CD69表达(P<0.000 1);小鼠移植瘤模型显示,CTP-V2可显著抑制胶质瘤生长(P<0.01),同时可明显增加T细胞肿瘤浸润(P<0.001),促进肿瘤细胞凋亡(P<0.001)。结论:CTP-V2可有效激活机体抗肿瘤免疫应答,抑制胶质瘤生长,可能是治疗胶质瘤的新策略。
    • 赵静静; 澹小秀; 王广志; 欧阳俭; 简星星; 谢鹭
    • 摘要: 根据病原体抗原基因中具有免疫原性的表位氨基酸序列,通过化学合成技术可制备该病原体的多肽疫苗.相较于灭活和减毒疫苗,多肽疫苗因成分简单、特异性强、安全性高、易于保存等优点成为疫苗研发的重点.然而,特异有效的疫苗候选表位的预测和筛选,仍是限制多肽疫苗设计与研发的一个重要因素.本研究综合多个生物信息学工具,构建了一个可用于预测和筛选病原体多肽疫苗候选表位的操作流程.并且,基于严重急性呼吸综合征冠状病毒2(severe acute respiratory syndrome coronavirus 2,SARS-CoV-2)的结构蛋白序列,该流程被成功地应用于其候选抗原表位的预测和筛选.最终,我们共筛选到34条关于SARS-CoV-2的T细胞候选表位,其中20条候选表位与数据库中经过验证的表位高度同源,且能够被T细胞受体(T cell receptor,TCR)识别.综上所述,本研究不仅为当下广泛蔓延的SARS-CoV-2的多肽疫苗设计提供了候选表位,还建立了一个广泛适用于多肽疫苗候选表位预测和筛选的工作流程.
    • 程凯慧; 沈付娆; 邹积振; 苗自利; 解晓莉; 张亮; 杨宏军; 何洪彬
    • 摘要: 为构建A型口蹄疫病毒多肽抗原表位的原核表达载体,并制备多克隆抗体,利用基因合成技术将不同株的A型口蹄疫病毒抗原表位A-A10-61-VP1(第141~160位氨基酸)、A-A10-61-VP1(第200~212位氨基酸)、A22Iraq-VP1(第136~164位氨基酸)串联,在其间引入合适的linker序列,重组得到pET-28a(+)质粒中,转化大肠杆菌BL21(DE3)感受态细胞,诱导表达重组蛋白,免疫新西兰兔制备多克隆抗体.成功构建了A型口蹄疫病毒抗原表位原核表达载体,获得高纯度重组蛋白和含A型口蹄疫病毒抗体的兔抗血清,为A型口蹄疫病毒诊断试剂盒的研发和A型口蹄疫病毒表位多肽疫苗的研究奠定基础.
    • 向云凤; 宋惠玲; 苟恩进; 李青; 顾胜利; 韩允; 汤正珍; 黄波
    • 摘要: Objective To make the epitope peptide vaccine by using the structural protein VP1 of enterovirus 71 (EV71) strain isolated from Guizhou area and investigate the immune protective effects on mice.Methods The VP1 amino acid sequences of 17 EV71 strains isolated from throat swab samples of children patients with hand-foot-mouth disease between March 1,2013 and December 31,2015 in Guizhou area were consistent(a total of 297 amino acids).Peptide fragments were designed and synthesized by using the amino acid sequence,that the last one was 27 amino acids,the others were 20 amino acids.The epitope peptide vaccine was made by using the polypeptide fragments with better immunogenicity,which was screened out by indirect ELISA method and IgG positive serum of children who recovered from EV71 infection.Then the epitope peptide vaccine was used to protect healthy ICR female rats and the control group was set that female rats weren't inoculated (con).The neonatal rats were randomly divided into 2 subgroups of injected and non injected EV71 virus.The mice were killed 2 days after injection of the virus,then the tissue was harvested from the skeletal muscle,the small intestine and brain of all neonatal rats which was used to check EV71 virus by RT-PCR and agarose gel electrophoresis and observed the pathological lesion by H&E.Results 3 peptide vaccines were made by using polypeptide fragments with better immunogenicity screened from 19 segments polypeptide fragments with cross sequences.The female mice were immunized by using the peptide vaccines and the subsequent experiments were carried out in neonatal rats.RTPCR results showed that EV71 virus could be detected in infected groups,could not be detected in uninfected groups.The pathological lesion showed that skeletal muscle,intestine and brain tissue had obvious inflammatory changes in the neonatal rats infected with EV71 virus but the female mice weren't immunized.Inflammatory changes were significantly alleviated in the neonatal rats infected with EV71 virus and the female mice were immunized,there was no significant difference in each tissue between the three vaccinated groups.No obvious inflammatory lesion was found in each tissue of the neonatal rats which didn't infected with EV71 virus and the female mice were immunized.Conclusion In our study,VP1 epitope peptide vaccine was successfully prepared,and its efficacy and safety were confirmed in animal experiments,it can provide methodological reference for the development of related vaccines in the future.%目的 根据贵州省手足口病患儿肠道病毒71型(EV71)分离株的VP1结构蛋白序列研制多肽疫苗并研究其对小鼠的免疫保护作用.方法 2013年3月1日至2015年12月31日从贵州省手足口病患儿的咽拭子样本中分离到17株EV71毒株,其VP1氨基酸序列一致(共297个氨基酸),据此设计并合成多肽片段(除最后一段为27个氨基酸外,其余均为20个氨基酸);用感染EV71的手足口病病愈患儿的阳性血清,通过间接ELISA法筛选出免疫原性较好的多肽片段,制成多肽疫苗;用多肽疫苗免疫ICR健康雌鼠,并设未免疫的对照(Con);将雌鼠的子代小鼠随机分为注射和不注射EV71病毒颗粒的2个亚组;注射病毒2d后处死所有小鼠,分别取小鼠的骨骼肌、小肠和脑组织,通过RT-PCR检测病毒感染情况,同时HE染色后在显微镜下观察病理改变.结果 共设计并合成19段含交叉序列的多肽片段,从中筛选出3段免疫原性较好的(P2:VSRALTHALPAPTGQNTQVS;P4:ALQAAEIGASSNASDESMIE;P8:YANWDIDITGYAQMRRKVEL),制成多肽疫苗并免疫雌鼠,取雌鼠的子代小鼠进行后续试验.RT-PCR结果显示,各感染病毒亚组的骨骼肌、小肠和脑组织中均能检测到EV71病毒,而未感染病毒亚组均检测不到;病理结果显示,未接种多肽疫苗母鼠的子代小鼠在感染EV71病毒后,骨骼肌、小肠和脑组织均出现明显的炎性改变;接种多肽疫苗母鼠的子代小鼠骨骼肌、小肠和脑组织的炎性改变明显减轻,3种多肽疫苗对EV71所致炎症的改善作用无明显差异;接种多肽疫苗母鼠的未注射病毒亚组子代小鼠骨骼肌、小肠和脑组织中均未检测到EV71病毒,也未观察到明显的炎性改变.结论 本研究成功制备VP1抗原表位多肽疫苗并在动物实验中证实了其有效性和安全性,可为今后相关疫苗的研制提供方法学借鉴.
    • 陈龙冠; 宋燕; 许元生; 黄云娜; 覃锦红; 谢秋玲
    • 摘要: 目的 研究能够诱导激活细胞免疫应答的多肽疫苗CKL9、YL20在细胞水平和整体动物水平的抗HER-2阳性肿瘤作用,为肿瘤新药开发提供依据. 方法 采用CCK-8法检测CKL9、YL20诱导小鼠淋巴细胞的增殖作用,采用LDH法检测细胞毒性T淋巴细胞(CTL)的活性,采用动物体内实验评价CKL9、YL20的抗肿瘤活性. 结果 CCK-8检测淋巴细胞增殖实验表明体外孵育多肽CKL9、YL20在一定程度上能够促进淋巴细胞增殖,在50 mg·L-1孵育浓度下,CKL9、YL20相对增殖率分别为11.1%、16.7%;LDH法检测细胞毒性实验表明经多肽疫苗CKL9、YL20诱导分化的T淋巴细胞对HER-2阳性的肿瘤细胞有杀伤作用,当效靶比为80 ∶1时,细胞毒性T淋巴细胞对肿瘤细胞抑制率分别可达89.8%和84.3%;动物体内实验表明预免疫多肽CKL9、YL20能对BALC/c小鼠N87移植瘤产生明显抑制作用. 结论 基于HER-2的多肽疫苗CKL9、YL20具有免疫原性,可诱导特异性CD4和CD8 T淋巴细胞免疫,以抑制HER-2阳性肿瘤细胞生长.%Aim To explore whether the polypeptide vaccines CKL9 and YL20 can induce immune response and anti-tumor effect on HER-2 (+) tumors in vitro and in vivo, and to provide suggestions for clinical use.Methods The proliferation of specific lymphocytes and cytotoxic T lymphocyte activity(CTL) stimulated by CKL9 and YL20 were studied with CCK-8 assay and LDH assay, and the antitumor activity of CKL9 and YL20 was evaluated in vivo.Results The lymphocyte proliferation was promoted by incubation with CKL9 and YL20, and the relative increase of cells was 11.1% and 16.7% respectively at the concentration of 50 mg·L-1 of CKL9 and YL20.The LDH assay confirmed the CTL effect induced by CKL9 and YL20 on HER2-positive tumor cells, not on HER2-negtive tumor cells.With an effector-target ratio of 80 ∶1, the inhibition of tumor cell by cytotoxic T lymphocyte stimulated by CKL9 and YL20 could reach 89.8% and 84.3%, respectively.The HER2(+) tumor cell N87 transplanted in Babes mice was inhibited by pre-immune polypeptide CKL9 and YL20.Conclusion The HER2-specific polypeptide vaccines CKL9 and YL20 could induce persistent specific CD4 and CD8 T cell immune and inhibit the growth of HER2 positive tumor cells.
    • 孙斌; 杨晓珍; 郭向华; 周育森; 孙世惠; 王延军
    • 摘要: 目的 以CD80、CD86抗体作为激动剂、脾细胞为研究对象,观察CD80、CD86抗体对耗竭性T细胞效应功能的影响.方法 将42只8周龄雌性 HLA-A11DR1转基因小鼠随机分为7组各6只,分别在8、11、14周龄时,A~F组臀部皮下接种磷脂酰肌醇蛋白聚糖3(GPC3)多肽,G组接种等体积无热源PBS;A~E组在24周龄和F、G组在17周龄时脱颈处死,取脾脏并制成脾细胞悬液;A、B组分别滴加20、40 μg/mL 抗鼠CD80抗体和10 μg/mL GPC3多肽,C、D组分别滴加20、40 μg/mL 抗鼠CD86抗体和10 μg/mL GPC3多肽,E、F、G组仅滴加10 μg/mL GPC3多肽.孵育18 h后,采用酶联斑点分析仪检测干扰素γ(IFN-γ),以此判断T细胞效应功能.结果 A~G组脾细胞IFN-γ阳性斑点数分别为(80.61±48.91)、(207.67±60.41)、(1.67±0.97)、(1.33±0.49)、(2.33±1.53)、(38.17±5.18)、(2.33±1.53)个.其中,F组高于E、G组(P均B组>C、D、E组(P均<0.01),C、D、E组间比较差异无统计学意义;而且,IFN-γ阳性斑点数随着CD80抗体浓度升高而增加,二者呈正相关(r=0.760 5,P<0.01).结论 CD80抗体能够刺激耗竭性T细胞恢复产生细胞因子,且呈剂量依赖的动力效应;而CD86抗体未能检测到该功能.%Objective To investigate the effects of CD80 and CD86 antibody on the effector function of exhausted T cells.Methods Forty-two female HLA-A11DR1 transgenic mice were randomly divided into 7 groups (n=6).The mice in groups A-F were subcutaneously inoculated with phosphatidylinositol 3 (GPC3) at the age of 8 weeks (week 8), at week 11 and week 14, respectively.Mice in the group G were inoculated with the same volume of heat-free PBS as controls.Mice in the groups A-E were sacrificed at week 24, and groups F and G at week 17.Splenocytes suspension was made.Then, 20 or 40 μg/mL CD80 antibody and 10 μg/mL GPC3 peptide were pipetted in the splenocytes of groups A and B;20 or 40 μg/mL CD86 antibody and 10 μg/mL GPC3 were pipetted in the groups C and D, respectively;10 μg/mL GPC3 peptide was pipetted in the groups E, F, and G.After incubation for 18 h, interferon-γ (IFN-γ) was measured by enzyme-linked spot analyzer for analysis of T cell function.Results IFN-γ positive spots in the groups A-G were 80.61±48.91, 207.67±60.41, 1.67±0.97, 1.33±0.49, 2.33±1.53, 38.17±5.18 and 2.33±1.53, respectively.Among them, group F was significantly higher than groups E and G (both P<0.01).There was no significant difference between groups E and G (both P<0.01).Group A was more than group B, and group B was significantly more than group C, D and E (all P<0.01).There was no significant difference among groups C, D and E.In addition, the number of IFN-γ positive spots was positively correlated with CD80 antibody concentration (r=0.7605, P<0.01).Conclusions Anti-CD80 could restore the exhausted T cells to secret IFN-γ with a dose-dependent manner, while anti-CD86 could not be detected for the same effect.
    • 胥冰; 王巧侠; 王小平; 蔺焕萍; 马晓军; 张鹏飞; 赵倩; 张克佩
    • 摘要: 分别以AFP多肽、HSP70 和HSP70-AFP多肽复合物免疫小鼠,检测各组CD8+T细胞培养上清IFN-γ、TNF-α、穿孔素、颗粒酶B水平及CD8+T细胞对H22细胞的杀伤作用,探讨热休克蛋白70(HSP70)-甲胎蛋白(AFP)抗原表位肽复合物对小鼠H22肝癌细胞的免疫效应.%To study anti-tumor immunity mechanism induced by a reconstructed peptide complex-heat shock protein 70 (HSP70) and alpha-fetoprotein (AFP), mice were immunized with recombinant peptide vaccine HSP70-AFP-P, whereas AFP peptide or HSP70 vaccination as controls.IFN-γ, TNF-α and granzyme-B, perforin-produced by separated CD8+ T cells from vaccinated mice were detected with ELISA, respectively.In vivo tumor loaded test was exerted to evaluate the immune effect of the peptide vaccine.The study suggested that sequential immunization with HSP70-AFP peptide vaccine could bring about effective AFP-specific CD8+ T cell responses and elicit specific antitumor immunity on AFP-producing tumors.
    • 杜静文; 王雨馨; 周炜均; 姜春俊; 谢晓灵; 张宏毫; 贺艳杰; 李玉华
    • 摘要: 目的:寻找并鉴定肿瘤相关抗原Eps8来源的HLA-A* 0201限制性CTL表位,为临床开展基于Eps8表位的特异性免疫治疗奠定基础.方法:通过在线生物学软件从C-末端酶切位点、MHC-Ⅰ类分子结合力及TAP转运效率3个方面初步预测Eps8抗原的HLA-A* 0201限制性CTL表位,通过肽/MHC分子结合力及肽/MHC分子复合物稳定性实验初步验证预测结果,利用酶联免疫斑点检测(enzyme-linked immuospot assay,ELISPOT)方法检测候选表位刺激健康志愿者外周血单个核细胞(PBMNC)分泌IFN-γ的能力,以及LDH细胞毒实验验证其体外杀伤肿瘤细胞的功能,最后在HLA-A* 0201/Kb转基因小鼠中检测候选表位的体内免疫功能.结果:通过在线生物学软件筛选得到4个候选表位.结合力实验结果显示,p360-368具有高结合力,p101-109、p276-284具有中等结合力.稳定性实验结果显示,该3个表位的DC50均大于8h.LDH细胞毒实验中p101-109、p276-284、p360-368都能诱导产生特异性CTL,对靶细胞具有显著的杀伤效应,还能提高效应细胞分泌IFN-γ的水平.在HLA-A* 0201/Kb转基因小鼠体内免疫功能检测中同样证实该Eps8抗原表位能产生强烈的免疫应答.结论:天然表位p101-109、p276-284、p360-368可能是Eps8抗原HLA-A* 0201限制性CTL表位.
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