Department of Medical Laboratory Science, Addis Ababa University, Addis Ababa, Ethiopia.
Mycobacterial Diseases Research Directorate, Armauer Hansen Research Institute, Addis Ababa, Ethiopia.
Front Immunol. 2022 Feb 25;13:849321. doi: 10.3389/fimmu.2022.849321. eCollection 2022.
Effective control of () infection is mediated by multifaceted factors that involve both the endocrine and immune system. Profiling hormones and antibodies in different stages of TB provides insight in the pathogenesis of the disease. In this study, we profiled endocrine hormones (dehydroepiandrosterone (DHEA), cortisol, testosterone, estradiol, growth hormone and leptins) and strain H37RV lipoarabinomannan (LAM)-specific antibody levels in plasma samples, collected from pulmonary TB (PTB) patients, TB lymphadenitis (TBLN) patients and latently infected (QFT-positive) or uninfected (QFT-negative) apparently healthy individuals using ELISA. Plasma levels of leptin and DHEA were significantly low in PTB and TBLN patients compared to healthy controls (P<0.0001 and P=0.02, respectively), whereas these levels significantly increased following anti-TB treatment (P=0.002 and P=0.0001, respectively) among TB patients. The levels of estradiol and testosterone significantly improved following anti-TB treatment (P=0.03 and P=0.0003, respectively), whereas cortisol and growth hormones declined significantly (P <0.05). Similarly, LAM-specific IgG, IgM and IgA were significantly higher in PTB patients compared to other groups, whereas levels of IgG1 subtype were significantly higher among LTBI groups compared to both TB patients and QFT-negative individuals (P<0.0001). Overall, we observed significantly variable levels of endocrine hormones as well as immunoglobulins across the spectrum of TB illness and such profiling has a significant contribution in selection of effective biomarkers that have roles in TB treatment monitoring or diagnostics. Although this study did not show a functional association between hormones and antibodies, alterations in the levels of these biomarkers suggest the key roles these markers play in TB pathogenesis.
有效控制()感染是由涉及内分泌和免疫系统的多方面因素介导的。在不同阶段的结核病中分析激素和抗体可以深入了解疾病的发病机制。在这项研究中,我们使用 ELISA 分析了来自肺结核 (PTB) 患者、结核性淋巴结炎 (TBLN) 患者以及潜伏感染(QFT 阳性)或未感染(QFT 阴性)的健康个体的血浆样本中的内分泌激素(脱氢表雄酮 (DHEA)、皮质醇、睾丸激素、雌二醇、生长激素和瘦素)和结核分枝杆菌 H37RV 脂阿拉伯甘露聚糖 (LAM)-特异性抗体水平。与健康对照组相比,PTB 和 TBLN 患者的血浆瘦素和 DHEA 水平显著降低(P<0.0001 和 P=0.02),而 TB 患者在接受抗结核治疗后这些水平显著升高(P=0.002 和 P=0.0001)。抗结核治疗后雌二醇和睾丸激素水平显著改善(P=0.03 和 P=0.0003),而皮质醇和生长激素水平显著下降(P<0.05)。同样,PTB 患者的 LAM 特异性 IgG、IgM 和 IgA 水平明显高于其他组,而 LTBI 组的 IgG1 亚型水平明显高于 TB 患者和 QFT 阴性个体(P<0.0001)。总体而言,我们观察到在内分泌激素以及免疫球蛋白在结核病的整个发病过程中存在显著的变化,这种分析在选择在结核病治疗监测或诊断中起作用的有效生物标志物方面具有重要意义。尽管本研究未显示激素和抗体之间存在功能关联,但这些生物标志物水平的改变表明这些标志物在结核病发病机制中发挥着关键作用。