Department of Chest Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
J Infect Dis. 2023 Jun 28;228(1):18-27. doi: 10.1093/infdis/jiac396.
Mycobacterium avium complex lung disease (MAC-LD) preferentially occurs in postmenopausal women and may have immune exhaustion involving the programmed cell death 1 (PD-1) pathway. It is still unknown whether sex-specific associations between susceptibility to MAC-LD and programmed cell death 1 gene (PDCD1) polymorphisms exist.
Adult patients with MAC-LD (n = 152) and controls (n = 167) were included at 2 medical centers in Taiwan. Five single-nucleotide polymorphisms in PDCD1 genes were genotyped, and their associations with MAC-LD and soluble PD-1 protein were analyzed, especially in sex subgroups.
PDCD1 rs2227982 polymorphism was associated with increased risk of MAC-LD in women (adjusted odds ratio for AA vs AG vs GG, 2.205 [95% confidence interval, 1.108-4.389]; P = .02), and the rs10204525 TT genotype was associated with low risk in men (TT vs TC and CC, 0.396 [.176-.890]; P = .02). Compared with men with rs10204525 TT, women with rs2227982 AG and with AA had 2.7- and 5.0-fold increased risks, respectively. Soluble PD-1 levels were lower in the female subgroup with rs2227982 AG and AA than in the remainder (median level [interquartile range], 46.7 [33.7-71.5] pg/mL vs 66.2 [48.6-101.5] pg/mL; P < .001).
PDCD1 genetic polymorphisms were associated with the risk of MAC-LD in a sex-specific pattern, possibly through regulation of PD-1 expression.
鸟分枝杆菌复合群肺病(MAC-LD)优先发生在绝经后妇女中,并且可能涉及程序性细胞死亡 1(PD-1)途径的免疫衰竭。目前尚不清楚 MAC-LD 的易感性与程序性死亡 1 基因(PDCD1)多态性之间是否存在特定于性别的关联。
在台湾的 2 家医疗中心纳入了 152 例 MAC-LD 患者和 167 例对照者。对 PDCD1 基因中的 5 个单核苷酸多态性进行了基因分型,并分析了它们与 MAC-LD 和可溶性 PD-1 蛋白的关系,特别是在性别亚组中。
PDCD1 rs2227982 多态性与女性 MAC-LD 风险增加相关(AA 对 AG 对 GG 的调整后的优势比,2.205 [95%置信区间,1.108-4.389];P =.02),而 rs10204525 TT 基因型与男性的低风险相关(TT 对 TC 和 CC,0.396 [.176-.890];P =.02)。与 rs10204525 TT 的男性相比,rs2227982 AG 和 AA 的女性风险分别增加了 2.7 倍和 5.0 倍。rs2227982 AG 和 AA 的女性亚组的可溶性 PD-1 水平低于其余女性(中位数水平[四分位间距],46.7 [33.7-71.5] pg/mL 比 66.2 [48.6-101.5] pg/mL;P <.001)。
PDCD1 遗传多态性与 MAC-LD 的风险呈性别特异性相关,可能通过调节 PD-1 表达。