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The Influence of HIV-1 Subtype in the Response to Therapeutic Dendritic Cell Vaccine

机译:HIV-1亚型在治疗性树突状细胞疫苗应答中的影响

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In the present study, we investigated the influence of HIV-1 subtype in the response to the dendritic cell (DC)therapeutic vaccine for HIV. HIV-1 viral load and TCD8+/TCD4+ cell counts for up to 48 weeks after vaccination. Out of19 immunized subjects, 13 were infected by subtype B, 5 by subtype F, and 1 by subtype D. Overall, 42.1% (8/19)achieved a viral load decline of ≥ 1 log10 sustained up to 48 weeks after immunization. Such magnitude of viral load dropwas seen in 80% (4/5) of subtype F infected patients, and in 23.0% (3/13) of the subtype B infected ones (p=0.08).Moreover, mean viral load decline was 1.32 log10, for subtype F infected individuals compared to 0.5 log10 among subtypeB infected patients (p=0.01). The variation in TCD4+ cell count was not related to HIV-1 subtype. Larger studies arenecessary to confirm the efficacy of this immunotherapy and the differential response according to the background geneticdiversity of HIV-1.
机译:在本研究中,我们调查了HIV-1亚型在对HIV的树突状细胞(DC)治疗疫苗的反应中的影响。疫苗接种后长达48周,HIV-1病毒载量和TCD8 + / TCD4 +细胞计数。在19位接受免疫的受试者中,有13位被B亚型感染,5位被F亚型感染,1位被D亚型感染。总体而言,42.1%(8/19)的病毒载量下降在免疫后长达48周持续≥1 log10。在80%(4/5)的F型亚型感染者和23.0%(3/13)的B型亚型感染者中可见这种病毒载量下降的幅度(p = 0.08)。此外,平均病毒载量下降为1.32。对于F型亚型感染患者,log10,而B型亚型感染患者为0.5 log10(p = 0.01)。 TCD4 +细胞计数的变化与HIV-1亚型无关。根据HIV-1的背景遗传多样性,有必要进行更大的研究来证实这种免疫疗法的有效性和差异反应。

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