Transient viral exposure drives functionally-coordinated humoral immune responses in HIV-1 post-treatment controllers.

Transient viral exposure drives functionally-coordinated humoral immune responses in HIV-1 post-treatment controllers.
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在HIV-1治疗后控制者中,瞬时病毒暴露驱动功能协调的体液免疫反应。

DOI:
10.1038/s41467-022-29511-1
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发表时间:
2022-04-11
影响因子:
16.6
通讯作者:
--
中科院分区:
综合性期刊1区
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--
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HIV-1 治疗后控制者是在抗逆转录病毒治疗中断后数年仍能控制 HIV-1 感染的罕见个体。识别治疗后控制者中控制的免疫相关性可能有助于设计有效的 HIV-1 疫苗和缓解策略。在这里,我们对长期治疗后控制者对 HIV-1 的体液反应进行了全面的免疫分析。结合临床病毒学和体液免疫数据的整体多变量分析揭示了治疗后控制者与稳定无病毒血症者相比,在治疗后经历短暂病毒血症发作的不同特征。暴露于病毒的治疗后控制者表现出更强的 HIV-1 体液反应,并更频繁地产生 Env 特异性记忆 B 细胞和交叉中和抗体。两者都与短暂的病毒血症暴露有关,同时还伴有血液非典型记忆 B 细胞和循环滤泡辅助 T 细胞激活亚群的增加。尽管如此,大多数体液免疫变量仅与 Th2 样循环滤泡辅助 T 细胞相关。因此,治疗后控制者形成了一个异质群体,具有两种不同的病毒行为和相关的免疫特征。治疗后控制者稳定地呈现出“沉默”的体液特征,而那些病毒暴露者则产生功能强大的 HIV 特异性 B 细胞和抗体反应,这可能参与控制感染。 HIV-1 感染者中有一个罕见的亚群在中断抗逆转录病毒治疗后经历了长期的病毒缓解,被认为是治疗后控制者。在这里,作者描述了一组治疗后控制者对 HIV-1 的体液免疫反应。
HIV-1 post-treatment controllers are rare individuals controlling HIV-1 infection for years after antiretroviral therapy interruption. Identification of immune correlates of control in post-treatment controllers could aid in designing effective HIV-1 vaccine and remission strategies. Here, we perform comprehensive immunoprofiling of the humoral response to HIV-1 in long-term post-treatment controllers. Global multivariate analyses combining clinico-virological and humoral immune data reveal distinct profiles in post-treatment controllers experiencing transient viremic episodes off therapy compared to those stably aviremic. Virally-exposed post-treatment controllers display stronger HIV-1 humoral responses, and develop more frequently Env-specific memory B cells and cross-neutralizing antibodies. Both are linked to short viremic exposures, which are also accompanied by an increase in blood atypical memory B cells and activated subsets of circulating follicular helper T cells. Still, most humoral immune variables only correlate with Th2-like circulating follicular helper T cells. Thus, post-treatment controllers form a heterogeneous group with two distinct viral behaviours and associated immune signatures. Post-treatment controllers stably aviremic present “silent” humoral profiles, while those virally-exposed develop functionally robust HIV-specific B-cell and antibody responses, which may participate in controlling infection. A rare sub-population of people living with HIV-1 experience long-lasting viral remission after interrupting antiretroviral therapy and are considered post-treatment controllers. Here the authors characterise the humoral immune response to HIV-1 in a cohort of post-treatment controllers.
在慢性HIV感染期间与粘液成分MUC16产生的抗体的结合增强。
DOI: 10.1038/mi.2016.8
发表时间: 2016-11
期刊: Mucosal immunology
影响因子: 8
作者:
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发表时间: 2018-03-26
影响因子: 9.9
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DOI: 10.1038/ncomms10844
发表时间: 2016-03-03
影响因子: 16.6
作者:
Bruel T;Guivel-Benhassine F;Amraoui S;Malbec M;Richard L;Bourdic K;Donahue DA;Lorin V;Casartelli N;Noël N;Lambotte O;Mouquet H;Schwartz O
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DOI: 10.1128/jvi.00497-17
发表时间: 2017-07-01
影响因子: 5.4
作者:
Buranapraditkun, Supranee;Pissani, Franco;Streeck, Hendrik
通讯作者: Streeck, Hendrik
DOI: 10.1128/mbio.00317-18
发表时间: 2018-05-08
期刊: mBio
影响因子: 6.4
作者:
Claireaux M;Galperin M;Benati D;Nouël A;Mukhopadhyay M;Klingler J;de Truchis P;Zucman D;Hendou S;Boufassa F;Moog C;Lambotte O;Chakrabarti LA
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