A&R:利妥昔单抗会损害B细胞反应,但不会损害T细胞对自身免疫性疾病中COVID-19疫苗的反应

2022-06-09 MedSci原创 MedSci原创

利妥昔单抗诱导了对mRNA COVID-19疫苗的抗体反应减弱,但与健康对照和使用其他免疫抑制剂治疗的自身免疫性疾病患者相比,功能性T细胞反应没有改变。

目的:已证明接受利妥昔单抗(RTX)治疗的患者对信使RNA (mRNA) COVID-19疫苗的抗体反应减弱。该研究团队进行这项研究以比较健康对照组、接受RTX治疗的自身免疫性疾病患者和接受其他免疫抑制剂治疗的患者之间的体液和T细胞反应,他们都接种了2 mRNA COVID-19疫苗。

方法研究人员在第二次BNT162b2 (辉瑞-BioNTech)疫苗接种之前和之后28天进行了抗刺突蛋白IgG测定和中和实验。在用SARS-CoV-2刺突蛋白肽池刺激后,使用细胞内流式细胞术染色细胞因子(干扰素-γ、肿瘤坏死因子和白细胞介素2)在活化的CD4CD8 T 细胞中评估特异性T细胞反应。

结果与其他免疫抑制剂组(80%n=35)(P=0.0001)和健康对照组(92%n=26) (P<0.0001)相比,RTX组中观察到具有疫苗中和抗体的应答者比例较(29%; n = 24)。在过去的6个月中接受过RTX治疗的患者都没有出现免疫应答反应。自上次输注后的时间长度是影响RTX治疗患者体液反应的主要因素。与其他免疫抑制剂组或对照组相比,RTX组对SARS-CoV-2肽的功能性CD4CD8细胞反应的每个单一细胞因子或多功能性因子没有差异。在RTX治疗的患者中,T细胞反应在有体液免疫反应和没有体液免疫反应的患者之间没有差异。

结论RTX诱导了对mRNA COVID-19疫苗的抗体反应减弱,但与健康对照和使用其他免疫抑制剂治疗的自身免疫性疾病患者相比,功能性T细胞反应没有改变。需要进一步的工作来评估在没有抗刺突蛋白抗体反应的情况下,功能活跃的T细胞反应所能提供的临床保护作用大小。

出处:Bitoun, S., Henry, J., Desjardins, D., Vauloup-Fellous, C., Dib, N., Belkhir, R., Mouna, L., Joly, C., Bitu, M., Ly, B., Pascaud, J., Seror, R., Roque Afonso, A.-M., Le Grand, R. and Mariette, X. (2022), Rituximab Impairs B Cell Response But Not T Cell Response to COVID-19 Vaccine in Autoimmune Diseases. Arthritis Rheumatol, 74: 927-933. https://doi.org/10.1002/art.42058

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  5. [GetPortalCommentsPageByObjectIdResponse(id=1660531, encodeId=d6141660531b0, content=<a href='/topic/show?id=c0de32285a1' target=_blank style='color:#2F92EE;'>#利妥昔#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=32285, encryptionId=c0de32285a1, topicName=利妥昔)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a58d25117340, createdName=花花1374, createdTime=Sun Mar 12 04:41:24 CST 2023, time=2023-03-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1273434, encodeId=25b012e343424, content=<a href='/topic/show?id=310d383ef5' target=_blank style='color:#2F92EE;'>#B细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3837, encryptionId=310d383ef5, topicName=B细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6eba113, createdName=xiaoyeshuang, createdTime=Sat Jun 11 02:41:24 CST 2022, time=2022-06-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1580193, encodeId=cf961580193dd, content=<a href='/topic/show?id=bd2529020e1' target=_blank style='color:#2F92EE;'>#免疫性疾病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=29020, encryptionId=bd2529020e1, topicName=免疫性疾病)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=df0516593209, createdName=124988c7m100暂无昵称, createdTime=Sat Jun 11 02:41:24 CST 2022, time=2022-06-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1225578, encodeId=bb5912255e8cb, content=<a href='/topic/show?id=8f275032126' target=_blank style='color:#2F92EE;'>#期刊论坛#</a><a href='/topic/show?id=23e3454e353' target=_blank style='color:#2F92EE;'>#学习#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50321, encryptionId=8f275032126, topicName=期刊论坛), TopicDto(id=45473, encryptionId=23e3454e353, topicName=学习)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b0825417521, createdName=ms6000000960504356, createdTime=Fri Jun 10 08:04:45 CST 2022, time=2022-06-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1225571, encodeId=814d12255e154, content=学习去了<a href='/topic/show?id=23e3454e353' target=_blank style='color:#2F92EE;'>#学习#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=45473, encryptionId=23e3454e353, topicName=学习)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210117/dcf1ab8de0ad4fdebbb81da7b96c0a66/7cafcf46965e4df0a1da0b5e959abfaf.jpg, createdBy=25282541486, createdName=悠游小鱼儿, createdTime=Fri Jun 10 07:23:16 CST 2022, time=2022-06-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1225552, encodeId=91411225552bb, content=不错学习了。, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4dfa6526517, createdName=ms5000000644045955, createdTime=Fri Jun 10 00:03:23 CST 2022, time=2022-06-10, status=1, ipAttribution=)]
    2022-06-10 悠游小鱼儿

    学习去了#学习#

    0

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    2022-06-10 ms5000000644045955

    不错学习了。

    0

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