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First confirmation of Mycobacterium tuberculosis complex from medieval Ireland by aDNA analysis – palaeopathological and microbial findings 首次确认结核分枝杆菌复合体从中世纪爱尔兰通过aDNA分析-古病理和微生物的发现。
IF 2.9 3区 医学 Q3 IMMUNOLOGY Pub Date : 2026-01-01 DOI: 10.1016/j.tube.2025.102710
Eileen M. Murphy , G. Michael Taylor , Tom A. Mendum , Graham R. Stewart
Eight burials from the multi-period rural settlement site of Ranelagh near Roscommon town, Ireland, with palaeopathological lesions suggestive of skeletal tuberculosis or brucellosis were examined by ancient DNA (aDNA) testing. Tuberculosis infection (MTB complex DNA) was confirmed in five individuals – an 11th-13th CE adolescent female (14.5–17.5 years), two young adults females (18–35 years, 7th-10th CE), one adolescent of unknown sex and one middle-aged adult (35–50 years, medieval in date). In the latter case, the differential diagnosis included brucellosis due to the presence of small multifocal lytic lesions in the lower spinal vertebrae. However, this individual and all cases tested negative for Brucella species DNA. In two positive cases, lineage 4 (Euro-American) Mycobacterium tuberculosis DNA was identified in extracts obtained from tooth pulp cavities. These are the first archaeological individuals from Ireland to have had tuberculosis infection confirmed through aDNA analysis.
通过古DNA (aDNA)测试,对爱尔兰罗斯科蒙镇附近Ranelagh多时期农村居民点的8个墓葬进行了检查,这些墓葬具有提示骨骼结核或布鲁氏菌病的古病理学病变。5例确诊结核感染(MTB复体DNA): 1例11 -13 CE青春期女性(14.5-17.5岁),2例青壮年女性(18-35岁,7 -10 CE), 1例性别未知的青少年和1例中年成人(35-50岁,中世纪)。在后一种情况下,鉴别诊断包括布鲁氏菌病,因为在脊柱下部椎骨存在小的多灶性溶解性病变。然而,该个体和所有病例的布鲁氏菌种DNA检测呈阴性。在两例阳性病例中,从牙髓腔提取液中鉴定出谱系4(欧美)结核分枝杆菌DNA。这是爱尔兰第一批通过dna分析证实患有结核病的考古个体。
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引用次数: 0
Corrigendum to “Inhibition of mycobacteria proliferation in macrophages by diaryl ether derivatives of Dehydrozingerone compound and repurposed drugs (Rebamipide, Sofalcone) via NF-κB pathway inhibition” [Tuberculosis, 155(2025), 102706] “Dehydrozingerone化合物二芳基醚衍生物和重组药物(Rebamipide, Sofalcone)通过抑制NF-κB途径抑制巨噬细胞分枝杆菌增殖”的更正”[tb, 155(2025), 102706]
IF 2.9 3区 医学 Q3 IMMUNOLOGY Pub Date : 2025-12-19 DOI: 10.1016/j.tube.2025.102722
Safiya Mehraj , Shazia Ali , Chetan Kumar , Asif Ali , Zahoor Ahmad
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引用次数: 0
Response to “Constructive appraisal of Zhong et al.’s study on Mycobacterium tuberculosis dormant antigens and PB2-DIMQ vaccine: Opportunities for translational strengthening” 对Zhong等人关于结核分枝杆菌休眠抗原和PB2-DIMQ疫苗研究的建设性评价:加强翻译的机会的回应。
IF 2.9 3区 医学 Q3 IMMUNOLOGY Pub Date : 2025-12-18 DOI: 10.1016/j.tube.2025.102723
Qiangsen Zhong , Xiaochun Wang , Yun Xu , Runlin Wang , Mingming Zhou , Xinkuang Liu
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引用次数: 0
Plasma biomarkers CRP, iFABP, and zonulin as predictors of tuberculosis progression in household contacts of pulmonary TB patients 血浆生物标志物CRP、iFABP和zonulin作为肺结核患者家庭接触者结核病进展的预测因子
IF 2.9 3区 医学 Q3 IMMUNOLOGY Pub Date : 2025-12-11 DOI: 10.1016/j.tube.2025.102720
Anuradha Rajamanickam , Evangeline Ann Daniel , Nikhil Gupte , Kannan Thiruvengadam , Padmapriyadarsini Chandrasekaran , Sathyamurthi Pattabiraman , Brindha Bhanu , Amsaveni Sivaprakasam , Mandar Paradkar , Vandana Kulkarni , Rajesh Karyakarte , Vidya Mave , Amita Gupta , Luke Elizabeth Hanna , Subash Babu

Background

Identifying host biomarkers associated with progression from Mycobacterium tuberculosis infection to active tuberculosis (TB) could support early risk stratification in household contacts (HHCs). This exploratory study evaluated baseline plasma immune biomarkers in HHCs of pulmonary TB (PTB) patients to assess their association with subsequent disease development.

Methods

We analyzed baseline plasma samples from 15 progressors and 29 non-progressors enrolled from PTB-affected households. Acute-phase proteins (α-2-macroglobulin (α-2-M), C-reactive protein [CRP], haptoglobin (Hp), serum amyloid P (SAP)) and microbial translocation markers (lipopolysaccharide, lipid-binding protein, endotoxin core antibodies IgG, intestinal fatty acid-binding protein [iFABP], sCD14, and zonulin) were measured using Luminex and ELISA. Logistic regression and ROC analyses were performed as exploratory assessments of biomarker associations.

Results

Higher baseline levels of CRP, iFABP, and zonulin were observed among progressors compared with non-progressors. In univariable analyses, these biomarkers showed strong discriminatory ability (AUC ≥0.90), although estimates should be interpreted cautiously given the small sample size. A combined model including CRP, iFABP, and zonulin demonstrated high discriminatory performance (AUC 0.99 [95 % CI: 0.97–1.00]), but confidence intervals reflect the imprecision inherent to the limited dataset.

Conclusions

In this exploratory cohort, elevated CRP, iFABP, and zonulin were associated with progression to active TB among household contacts. These preliminary findings suggest potential involvement of inflammatory and gut-barrier pathways in TB progression and warrant validation in larger, independent cohorts to define their translational utility.
背景:鉴定与结核分枝杆菌感染进展为活动性结核病(TB)相关的宿主生物标志物可以支持家庭接触者(hhc)的早期风险分层。本探索性研究评估了肺结核(PTB)患者hhc的基线血浆免疫生物标志物,以评估其与随后疾病发展的相关性。方法:我们分析了来自受ptb影响家庭的15名进展者和29名非进展者的基线血浆样本。采用Luminex和ELISA检测急性期蛋白(α-2-巨球蛋白(α-2-M)、c反应蛋白(CRP)、接触珠蛋白(Hp)、血清淀粉样蛋白(SAP))和微生物易位标志物(脂多糖、脂结合蛋白、内毒素核心抗体IgG、肠脂肪酸结合蛋白(iFABP)、sCD14、zonulin)。采用Logistic回归和ROC分析作为生物标志物相关性的探索性评估。结果:与非进展者相比,在进展者中观察到更高的CRP、iFABP和zonulin基线水平。在单变量分析中,这些生物标志物显示出很强的区分能力(AUC≥0.90),尽管由于样本量小,估计值应谨慎解释。包括CRP、iFABP和zonulin的组合模型显示出很高的区分性能(AUC 0.99 [95% CI: 0.97-1.00]),但置信区间反映了有限数据集固有的不精确性。结论:在这个探索性队列中,升高的CRP、iFABP和zonulin与家庭接触者发展为活动性结核病有关。这些初步发现表明炎症和肠道屏障通路可能参与结核病的进展,并需要在更大的独立队列中进行验证,以确定其转化效用。
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引用次数: 0
Responses to comments on “A comparative study between milk- and serum-based antibody detection assays for Johne's disease in New Zealand dairy cattle” 对“新西兰奶牛约翰氏病乳基抗体检测与血清抗体检测的比较研究”评论的答复
IF 2.9 3区 医学 Q3 IMMUNOLOGY Pub Date : 2025-12-11 DOI: 10.1016/j.tube.2025.102721
K.M. Venkatesh , Nicolas Lopez-Villalobos , Sandeep K. Gupta , Garry B. Udy , Richard Laven , Shih-Jiuan Chiu , Piyush Bugde , Yoichi Furuya , Venkata Sayoji Rao Dukkipati
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引用次数: 0
Comments on “A comparative study between milk- and serum-based antibody detection assays for Johne's disease in New Zealand dairy cattle” 对“新西兰奶牛约翰氏病乳抗体和血清抗体检测方法的比较研究”的评论。
IF 2.9 3区 医学 Q3 IMMUNOLOGY Pub Date : 2025-12-09 DOI: 10.1016/j.tube.2025.102719
Arun Kumar, Ankur Sharma, Saumya Das, Preeti Dnyandeo Sonje, Dhanya Dedeepya
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引用次数: 0
Dysregulated IFN-γ, IL-6 and TNF-α after COVID-19 is suggestive of lowered innate immune responses to SARS-CoV-2 and MTB COVID-19后IFN-γ、IL-6和TNF-α的失调提示对SARS-CoV-2和MTB的先天免疫应答降低
IF 2.9 3区 医学 Q3 IMMUNOLOGY Pub Date : 2025-12-02 DOI: 10.1016/j.tube.2025.102718
Uzair Abbas , Kiran Iqbal Masood , Tulaib Iqbal , Shama Qaiser , Martin Rottenberg , Bushra Jamil , Rabia Hussain , Zahra Hasan
SARS-CoV-2 infection modulates innate and adaptive immunity and likely impacts outcomes of infections such as Mycobacterium tuberculosis (MTB). We investigated the association between COVID-19 and latent tuberculosis infection (LTBi), studying viral and mycobacterial antigen-stimulated responses in those with and without a history of COVID-19.
We studied healthy Controls and COVID-19 convalescent subjects. Participants were screened for LTBi using an interferon-gamma release assay (IGRA). SARS-CoV-2 Spike- and MTB H37Rv-sonicate -stimulated cytokines from peripheral blood mononuclear cells (PBMCs) were measured.
Spike-induced IFN-γ (p = 0.03), IL-6 (p = 0.018) and IL-2 (p = 0.04) levels were reduced in COVID-19 as compared with Controls. Within Controls, Spike induced higher cytokine levels in IGRA positive participants (p < 0.05). MTB-induced IFN-γ (0.003), IL-2 (p = 0.0021), IL-6 (p = 0.002), TNF-α (p = 0.02), and IL-10 (p = 0.04) levels were lowered in COVID-19. MTB- stimulated higher levels of proinflammatory cytokines were found in IGRA-positive Controls. Between IGRA positive participants, the COVID-19 group displayed lower Spike and MTB induced IFN-γ (0.003), IL-6 (0.0037), IL-2 (0.001), and TNF-α (0.005) levels. Further, MTB-induced IL-6/IL-10 and TNF-α/IL-10 ratios were higher in COVID-IGRA positive participants.
Reduced SARS-CoV-2 and MTB activation of inflammatory cytokines reflects downregulated immunity after COVID-19. Further studies are required to assess whether LTBi and COVID-19 increase the risk of progression to tuberculosis.
SARS-CoV-2感染可调节先天免疫和适应性免疫,并可能影响结核分枝杆菌(MTB)等感染的结果。我们研究了COVID-19与潜伏结核感染(LTBi)之间的关系,研究了有和没有COVID-19病史的人的病毒和分枝杆菌抗原刺激反应。我们研究了健康对照和COVID-19恢复期受试者。参与者使用干扰素- γ释放试验(IGRA)筛选LTBi。检测外周血单个核细胞(PBMCs)受SARS-CoV-2 Spike和MTB h37rv声波刺激的细胞因子。与对照组相比,COVID-19患者的峰值诱导的IFN-γ (p = 0.03)、IL-6 (p = 0.018)和IL-2 (p = 0.04)水平降低。在对照组中,Spike诱导IGRA阳性参与者的细胞因子水平升高(p < 0.05)。MTB-induced干扰素-γ(0.003),2 (p = 0.0021), il - 6 (p = 0.002),肿瘤坏死因子-α(p = 0.02)和il - 10 (p = 0.04)水平在COVID-19降低。在igra阳性对照中发现MTB刺激的促炎细胞因子水平较高。在IGRA阳性的参与者中,COVID-19组表现出较低的Spike和MTB诱导的IFN-γ(0.003)、IL-6(0.0037)、IL-2(0.001)和TNF-α(0.005)水平。此外,mtb诱导的IL-6/IL-10和TNF-α/IL-10比值在COVID-IGRA阳性参与者中较高。SARS-CoV-2和MTB炎症细胞因子激活降低反映了COVID-19后免疫下调。需要进一步的研究来评估LTBi和COVID-19是否会增加进展为结核病的风险。
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引用次数: 0
Response to “Correspondence on ‘Utility of pleural fluid-derived extracellular vesicles as a source of Mycobacterium tuberculosis antigens MPT51 and MPT64 for pleural TB diagnosis: a proof-of-concept study” 对“胸膜液来源的细胞外囊泡作为结核分枝杆菌抗原MPT51和MPT64在胸膜结核诊断中的应用:一项概念验证研究”的回应。
IF 2.9 3区 医学 Q3 IMMUNOLOGY Pub Date : 2025-12-01 DOI: 10.1016/j.tube.2025.102699
Neha Jindal, Manisha Dass, Pratibha Sharma, Sagarika Haldar
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引用次数: 0
Inhibition of mycobacteria proliferation in macrophages by diaryl ether derivatives of Dehydrozingerone compound and repurposed drugs (Rebamipide, Sofalcone) via NF-κB pathway inhibition Dehydrozingerone化合物二芳基醚衍生物和Rebamipide、Sofalcone通过抑制NF-κB通路抑制巨噬细胞分枝杆菌增殖
IF 2.9 3区 医学 Q3 IMMUNOLOGY Pub Date : 2025-12-01 DOI: 10.1016/j.tube.2025.102706
Safiya Mehraj , Shazia Ali , Chetan Kumar , Asif Ali , Zahoor Ahmad

Background

Chronic inflammation fuels tissue damage and morbidity in numerous diseases, including Tuberculosis, underscoring the vital need for Host-Directed Therapies to safely modulate the exaggerated host response. We investigated the immunomodulatory potential of Sofalcone and Rebamipide alongside a novel Diaryl Ether derivative of Dehydrozingerone DHZ (6), hypothesizing that they exert therapeutic effects by targeting the central inflammatory driver, the NF-κB pathway.

Methods

We evaluated the safety and efficacy of the compounds in THP-1 macrophages infected with M. smegmatis. Mechanistic studies utilized Western blotting, immunofluorescence, and ELISA to track NF-κB activation. MMP activity was assessed by gelatin zymography, and ROS production was quantified using the DCFH-DA assay.

Results

All compounds exhibited low cytotoxicity and significantly reduced intracellular bacterial survival. Agents potently and consistently inhibited the NF-κB cascade, evidenced by ≈ 83 % suppression of upstream P-IKKα/IKKβ and up to ≈89 % reduction in p65 phosphorylation. This molecular blockade prevented p65 nuclear translocation and resulted in a downstream functional benefit: near total abolition of MMP-2/9 activity and ≈71 % mitigation of ROS production.

Conclusion

Our results unequivocally validate NF-κB inhibition by DHZ (6), Sofalcone, and Rebamipide as a powerful strategy for HDT. These compounds are promising adjunct therapies to suppress host inflammation and limit tissue damage.
慢性炎症会导致包括结核病在内的许多疾病的组织损伤和发病率,这强调了对宿主导向疗法的迫切需要,以安全地调节过度的宿主反应。我们研究了Sofalcone和Rebamipide以及Dehydrozingerone DHZ的新型二芳基醚衍生物的免疫调节潜力(6),假设它们通过靶向中枢炎症驱动因子NF-κB途径发挥治疗作用。方法评价化合物对耻垢分枝杆菌感染的THP-1巨噬细胞的安全性和有效性。机制研究采用Western blotting、免疫荧光和ELISA追踪NF-κB活化。明胶酶谱法测定MMP活性,DCFH-DA法测定ROS产量。结果所有化合物均表现出较低的细胞毒性,并显著降低细胞内细菌存活率。药物有效且持续地抑制NF-κB级联,上游P-IKKα/IKKβ抑制约83%,p65磷酸化降低约89%。这种分子阻断阻止了p65核易位,并导致下游功能获益:MMP-2/9活性几乎完全消除,ROS产生减少约71%。结论:我们的研究结果明确证实了DHZ(6)、Sofalcone和Rebamipide对NF-κB的抑制是治疗HDT的有效策略。这些化合物是抑制宿主炎症和限制组织损伤的有希望的辅助疗法。
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引用次数: 0
Letter to Editor: manuscript entitled “Utility of pleural fluid-derived extracellular vesicles as a source of Mycobacterium tuberculosis antigens MPT51 and MPT64 for pleural TB diagnosis: a proof-of-concept study” by Jindal et al. published in Tuberculosis150 (2025) 102578 致编辑的信:由Jindal等人撰写的题为“胸膜液来源的细胞外囊泡作为结核分枝杆菌抗原MPT51和MPT64用于胸膜结核诊断的效用:一项概念验证研究”的手稿,发表在结核菌150(2025)102578上。
IF 2.9 3区 医学 Q3 IMMUNOLOGY Pub Date : 2025-12-01 DOI: 10.1016/j.tube.2025.102695
Promod K. Mehta
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引用次数: 0
期刊
Tuberculosis
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