Division of Infectious Diseases, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA.
Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, USA.
J Infect Dis. 2021 Jun 4;223(11):1934-1942. doi: 10.1093/infdis/jiaa657.
Individuals infected with human immunodeficiency virus (HIV) 1 have increased inflammation, which has been associated with age-associated diseases. Plasma markers, cell-associated virus levels, and ability to stimulate RNA transcription in latently infected cell lines was examined in younger and older HIV-1-infected individuals with suppressed virus. Cell-associated RNA, but not intact provirus level, had positive correlation with plasma D-dimer levels. Compared with the younger group, the older group had higher D-dimer levels and a trend toward more cell-associated RNA but similar levels of intact proviruses. Even though all measured inflammatory markers were relatively higher in the older group, this greater inflammation did not induce more HIV-1 transcription in latently infected cell lines. Inflammation and HIV-1 RNA expression increase with age despite similar levels of intact infectious HIV DNA. While plasma inflammation is correlated with HIV-1 RNA expression in peripheral blood mononuclear cells, it does not induce HIV-1 transcription in latently infected cell lines.
感染人类免疫缺陷病毒 (HIV) 1 的个体炎症增加,这与与年龄相关的疾病有关。在病毒受抑制的年轻和老年 HIV-1 感染者中,检查了血浆标志物、细胞相关病毒水平和潜伏感染细胞系中刺激 RNA 转录的能力。细胞相关 RNA 而不是完整前病毒水平与血浆 D-二聚体水平呈正相关。与年轻组相比,老年组的 D-二聚体水平更高,细胞相关 RNA 水平呈上升趋势,但完整前病毒水平相似。尽管老年组的所有测量炎症标志物相对较高,但这种更大的炎症并未在潜伏感染的细胞系中诱导更多的 HIV-1 转录。尽管完整的感染性 HIV DNA 水平相似,但炎症和 HIV-1 RNA 表达会随着年龄的增长而增加。虽然血浆炎症与外周血单个核细胞中的 HIV-1 RNA 表达相关,但它不会在潜伏感染的细胞系中诱导 HIV-1 转录。