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脑脊液中不同的神经免疫特征预示着HIV相关隐球菌性脑膜炎患者不同的性别特异性生存率。

Divergent Neuroimmune Signatures in the Cerebrospinal Fluid Predict Differential Gender-Specific Survival Among Patients With HIV-Associated Cryptococcal Meningitis.

作者信息

Okurut Samuel, Boulware David R, Okafor Elizabeth, Rhein Joshua, Kajumbula Henry, Bagaya Bernard, Bwanga Freddie, Olobo Joseph O, Manabe Yukari C, Meya David B, Janoff Edward N

机构信息

Translation Sciences Laboratory, Research Department, Infectious Diseases Institute, Makerere University, Box 22418, Kampala, Uganda.

Department of Medical Microbiology, School of Biomedical Sciences, College of Health Sciences, Makerere University, 7072, Kampala, Uganda.

出版信息

medRxiv. 2023 Aug 15:2023.08.09.23293903. doi: 10.1101/2023.08.09.23293903.

Abstract

Survival among people with HIV-associated cryptococcal meningitis (CM) remains low, exceptionally among women with the increased threat of death on current optimal use of antifungal drugs. dissemination into the central nervous system (CNS) prompts a neuroimmune reaction to activate pathogen concomitant factors. However, no consistent diagnostic or prognostic immune-mediated signature is reported to underpin the risk of death or mechanism to improve treatment or survival. We theorized that the distinct neuroimmune cytokine or chemokine signatures in the cerebrospinal fluid (CSF), distinguish survivors from people who died on antifungal treatment, who may benefit from tailored therapy. We considered the baseline clinical disease features, cryptococcal microbiologic factors, and CSF neuroimmune modulated signatures among 419 consenting adults by gender (biological sex assigned at birth) (168 females and 251 males) by 18 weeks of survival on antifungal management. Survival at 18 weeks was inferior among females than males (47% vs. 59%; hazard ratio HR=1.4, 95% CI: 1.0 to 1.9, and p=0.023). Unsupervised principal component analysis (PCA) demonstrated the divergent neuroimmune signatures by gender, survival, and intragender-specific survival. Overall, females displayed lower levels of PD-L1, IL-1RA, and IL-15 than males (all p≤0.028). Female survivors compared with those who died, expressed significant fold elevations in levels of CSF (CCL11 - myeloid and CXCL10 - lymphoid chemokine (in both p=0.001), and CSF Th1, Th2, and Th17 cytokines. In contrast, male survivors expressed distinctly lower levels of CSF IL-15 and IL-8 compared with those who died. Survivors of either gender demonstrated a significant increase in the levels of immune regulatory element, IL-10. In the finale, we classified divergent neuroimmune key signatures in CSF by gender, survival, and intragender-specific survival among people with HIV-associated cryptococcal meningitis. These intragender-specific survival associated-neuroimmune signatures, suggests the discrete role of gender immune regulating mechanisms as the possible targets for interventions to advance therapy to improve survival among people with HIV-associated cryptococcal meningitis.

摘要

感染HIV的隐球菌性脑膜炎(CM)患者的生存率仍然很低,尤其是在目前最佳使用抗真菌药物的情况下死亡风险增加的女性患者中。病原体扩散到中枢神经系统(CNS)会引发神经免疫反应,从而激活病原体相关因素。然而,目前尚无一致的诊断或预后免疫介导特征被报道可作为死亡风险的依据,也没有改善治疗或提高生存率的机制。我们推测,脑脊液(CSF)中独特的神经免疫细胞因子或趋化因子特征可区分抗真菌治疗的幸存者和死亡者,而这些特征可能有助于制定个性化治疗方案。我们考虑了419名同意参与研究的成年人(根据出生时指定的生物学性别,168名女性和251名男性)在抗真菌治疗18周时的基线临床疾病特征、隐球菌微生物学因素以及CSF神经免疫调节特征。18周时女性的生存率低于男性(47%对59%;风险比HR = 1.4,95%置信区间:1.0至1.9,p = 0.023)。无监督主成分分析(PCA)显示了不同性别、生存情况以及特定性别内生存情况的神经免疫特征差异。总体而言,女性的程序性死亡受体1配体(PD-L1)、白细胞介素-1受体拮抗剂(IL-1RA)和白细胞介素-15(IL-15)水平低于男性(所有p≤0.028)。与死亡女性相比,存活女性脑脊液中(CC趋化因子配体11 - 髓样和CXC趋化因子配体10 - 淋巴样趋化因子,两者p均 = 0.001)以及脑脊液辅助性T细胞1(Th1)、辅助性T细胞2(Th2)和辅助性T细胞17(Th17)细胞因子水平显著升高。相比之下,存活男性脑脊液中IL-15和白细胞介素-8(IL-8)水平明显低于死亡男性。无论男女,幸存者的免疫调节因子白细胞介素-10水平均显著升高。最后,我们根据性别、生存情况以及特定性别内生存情况,对HIV相关隐球菌性脑膜炎患者脑脊液中的不同神经免疫关键特征进行了分类。这些特定性别内生存相关的神经免疫特征表明,性别免疫调节机制具有独特作用,可能是推进治疗以提高HIV相关隐球菌性脑膜炎患者生存率的干预靶点。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f4de/10462187/c7772bdc0e85/nihpp-2023.08.09.23293903v1-f0001.jpg

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