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CLIN CANCER RES：叶酸受体抗原肽疫苗在乳腺癌和卵巢癌患者中可以诱导免疫

2018-07-02 MedSci MedSci原创

叶酸受体乳腺癌卵巢癌免疫
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叶酸受体（FR）在几种肿瘤中过表达。在患者中发现了针对叶酸受体的内源性免疫，使得通过疫苗或其他免疫治疗靶向叶酸受体成为可能。CD4辅助性T细胞在免疫发展过程中至关重要，之前的研究证实其在预防复发方面有重要意义。来源于人叶酸受体的HLA-Ⅱ类表位可以诱导出覆盖范围较大的抗原表位池，在增强抗原特异性免疫反应方面均有潜在意义。CLIN CANCER RES近期发表了一篇文章，对这一问题进行研究。

叶酸受体（FR）在几种肿瘤中过表达。在患者中发现了针对叶酸受体的内源性免疫，使得通过疫苗或其他免疫治疗靶向叶酸受体成为可能。CD4辅助性T细胞在免疫发展过程中至关重要，之前的研究证实其在预防复发方面有重要意义。来源于人叶酸受体的HLA-Ⅱ类表位可以诱导出覆盖范围较大的抗原表位池，在增强抗原特异性免疫反应方面均有潜在意义。CLIN CANCER RES近期发表了一篇文章，对这一问题进行研究。

作者进行了Ⅰ期临床试验验证这一疫苗的安全性和免疫原性，研究纳入的患者为完成了常规治疗的卵巢癌或乳腺癌患者。患者初始接受低剂量的环磷酰胺治疗，然后接受6次疫苗治疗，每个月一次。在接受疫苗期间及1年后检测其免疫及安全性。研究结果表明，疫苗在所有患者中均耐受良好。疫苗在超过90%的患者中会增强免疫。叶酸受体T细胞反应在疫苗治疗期间逐渐发展，中位时间5个月时达到最强的免疫效果。尽管免疫效果发展较慢，但是反应持续时间至少为12个月。

文章最后认为，增强靶向叶酸受体肿瘤抗原的免疫是安全的，已研究出的疫苗在绝大部分肿瘤表达叶酸受体的患者中均有治疗效果。

原始出处：
Kimberly R.Kalli,Matthew S.Block,et al.Folate Receptor Alpha Peptide Vaccine Generates Immunity in Breast and Ovarian Cancer Patients.CLIN CANCER RES.July 2018 doi:10.1158/1078-0432.CCR-17-2499

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    2019-01-04 rgjl

    #乳腺癌和卵巢癌#

    0

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    2019-01-25 chenzhuanggui

    #叶酸受体#

    0

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    2018-07-04 xiaoyeshuang

    #抗原#

    0

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    2018-07-03 kafei

    了解一下谢谢

    0

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