Microbes and Infection最新文献

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Protection conferred by mucosal novel bivalent Klebsiella pneumoniae vaccine immunization associates with presence of lung CD4+ TRM.
IF 2.6 4区 医学
Microbes and Infection Pub Date : 2025-03-11 DOI: 10.1016/j.micinf.2025.105483
BiXia Liu, YaRu Gu, YangXue Ou, LuXuan Liu, WenHao Wang, JinRui Zhou, Ying Wang, YeXiang Du, Jing Xie, Yuan Liu, Rui Zhang, QianFei Zuo, Bin Wang
{"title":"Protection conferred by mucosal novel bivalent Klebsiella pneumoniae vaccine immunization associates with presence of lung CD4<sup>+</sup> T<sub>RM</sub>.","authors":"BiXia Liu, YaRu Gu, YangXue Ou, LuXuan Liu, WenHao Wang, JinRui Zhou, Ying Wang, YeXiang Du, Jing Xie, Yuan Liu, Rui Zhang, QianFei Zuo, Bin Wang","doi":"10.1016/j.micinf.2025.105483","DOIUrl":"https://doi.org/10.1016/j.micinf.2025.105483","url":null,"abstract":"<p><p>Klebsiella pneumoniae is the principal cause of hospital-acquired infection with a high morbidity and mortality in immunocompromised individuals, yet no vaccine is approved. Here, we developed a novel bivalent subunit vaccine for the prevention of K. pneumoniae infection based on the outer membrane protein GlnH and the fimbriae protein FimA. The survival rate of immunized mice was significantly increased compared to that of unimmunized mice, while the bacterial burden, weight loss, and lung pathology were drastically reduced. Furthermore, vaccine-elicited CD4<sup>+</sup> T<sub>RM</sub> cells were observed in lung tissues and appeared to play a critical role in vaccine efficacy. Transcriptomic analysis of total lung tissues from mice treated by FTY720 (S1PR1 inhibitor that blocks lymphocyte egress from secondary lymphoid structures) showed that cell activation, cytokine secretion and enhancement of the killing ability of neutrophils were related to the mechanism of protection against K. pneumoniae infection. These findings indicate that GlnH and FimA are effective candidate bivalent vaccine to fight K. pneumoniae infection.</p>","PeriodicalId":18497,"journal":{"name":"Microbes and Infection","volume":" ","pages":"105483"},"PeriodicalIF":2.6,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143625409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
TRIM32 positively regulates c-di-GMP-Induced type I interferon signaling pathway in Listeria monocytogenes infection.
IF 2.6 4区 医学
Microbes and Infection Pub Date : 2025-03-04 DOI: 10.1016/j.micinf.2025.105499
Yaya Pian, Xuan OuYang
{"title":"TRIM32 positively regulates c-di-GMP-Induced type I interferon signaling pathway in Listeria monocytogenes infection.","authors":"Yaya Pian, Xuan OuYang","doi":"10.1016/j.micinf.2025.105499","DOIUrl":"10.1016/j.micinf.2025.105499","url":null,"abstract":"<p><p>Listeria monocytogenes (Lm) poses a significant threat to human health. TRIM32, an E3 ubiquitin ligase, plays a critical role in regulating immune responses to pathogen infections. Previous studies have shown that TRIM32 deficiency significantly impairs IFN-β production. In this study, we demonstrate that TRIM32 enhances IFN-β release upon activation by cyclic di-GMP (c-di-GMP). Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses revealed that TRIM32 deficiency upregulates genes associated with metabolic pathways while downregulating those involved in cytokine signaling and inflammatory responses. Western blot analysis further indicated a significant reduction in ERK and JNK phosphorylation in splenocytes and peritoneal macrophages, suggesting that TRIM32 modulates the MAPK signaling pathway. Additionally, the duration of p38, STAT, and TBK1 phosphorylation was shortened in bone marrow-derived macrophages. Collectively, these findings highlight the role of TRIM32 in enhancing the host immune response against Lm infection.</p>","PeriodicalId":18497,"journal":{"name":"Microbes and Infection","volume":" ","pages":"105499"},"PeriodicalIF":2.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143573463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pseudomonas aeruginosa-derived DnaJ induces TLR2 expression through TLR10-mediated activation of the PI3K-SGK1 pathway in macrophages.
IF 2.6 4区 医学
Microbes and Infection Pub Date : 2025-02-18 DOI: 10.1016/j.micinf.2025.105481
Jaehoo Lee, Yongxin Jin, Weihui Wu, Yeji Lee, Un-Hwan Ha
{"title":"Pseudomonas aeruginosa-derived DnaJ induces TLR2 expression through TLR10-mediated activation of the PI3K-SGK1 pathway in macrophages.","authors":"Jaehoo Lee, Yongxin Jin, Weihui Wu, Yeji Lee, Un-Hwan Ha","doi":"10.1016/j.micinf.2025.105481","DOIUrl":"10.1016/j.micinf.2025.105481","url":null,"abstract":"<p><p>TLR2 is a key component of the innate immune system, responsible for recognizing Gram-positive bacterial components and initiating inflammatory signaling cascades that activate defense responses. However, little is known about the regulatory effects of Pseudomonas aeruginosa (P. aeruginosa) on TLR2 expression. In this study, we investigated the potential link between P. aeruginosa-derived DnaJ and TLR2 expression in macrophages, as well as the activation of downstream signaling pathways. Our findings revealed that DnaJ significantly induced TLR2 expression in a dose- and time-dependent manner, predominantly affecting TLR2 with minimal impact on other TLRs, such as TLR4 and TLR5, which detect bacterial PAMPs. The DnaJ-mediated TLR2 induction was driven by activation of the PI3K-SGK1 signaling pathway, with TLR10 playing a crucial role in facilitating these effects. This increase in TLR2 expression led to enhanced production of inflammatory cytokines in response to secondary Staphylococcus aureus infections, indicating a role in boosting host defense mechanisms. In conclusion, these findings suggest that P. aeruginosa-derived DnaJ promotes TLR2 expression via TLR10-mediated activation of the PI3K-SGK1 pathway, thereby enhancing host immune responses against Gram-positive bacterial infections.</p>","PeriodicalId":18497,"journal":{"name":"Microbes and Infection","volume":" ","pages":"105481"},"PeriodicalIF":2.6,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143468450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Immunostimulatory effects of Hsp70 fragments-modified DCs: A computational and experimental study in HIV vaccine design.
IF 2.6 4区 医学
Microbes and Infection Pub Date : 2025-02-15 DOI: 10.1016/j.micinf.2025.105480
Elahe Akbari, Alireza Milani, Parisa Moradi Pordanjani, Masoud Seyedinkhorasani, Elnaz Agi, Azam Bolhassani
{"title":"Immunostimulatory effects of Hsp70 fragments-modified DCs: A computational and experimental study in HIV vaccine design.","authors":"Elahe Akbari, Alireza Milani, Parisa Moradi Pordanjani, Masoud Seyedinkhorasani, Elnaz Agi, Azam Bolhassani","doi":"10.1016/j.micinf.2025.105480","DOIUrl":"10.1016/j.micinf.2025.105480","url":null,"abstract":"<p><strong>Background: </strong>Dendritic cells (DCs) loaded with HIV-1 antigens have been explored as a promising therapeutic approach to overcome HIV-1 infection. Heat shock proteins (Hsps) can improve cross-presentation of linked antigens by DCs. Our aim was a comprehensive in silico, in vitro, and in vivo evaluation of fusion proteins comprising the N- and C-terminal regions of Hsp70 (i.e., NT-Hsp70 and CT-Hsp70) as an adjuvant linked to HIV-1 Nef antigen in development of DCs-based vaccine candidates.</p><p><strong>Methods: </strong>Computational analyses of the NT-Hsp70-Nef and CT-Hsp70-Nef fusion constructs were performed, and their structural features and docking ability with toll-like or endocytic receptors were evaluated. The effectiveness of DCs loaded with the fusion proteins in eliciting immunity was assessed in mice. Cytokine secretion levels from splenocytes exposed to single-cycle replicable (SCR) HIV-1 were also measured in vitro.</p><p><strong>Results: </strong>The DCs pulsed with the fusion constructs induced robust cellular and humoral immune responses in mice and infected splenocytes. The CT-Hsp70 region showed better docking scores with immune receptors and superior adjuvanticity for inducing Nef-specific immune responses (Th1 and CTL activity) compared to the NT-Hsp70 region in DC-based immunization.</p><p><strong>Conclusions: </strong>The CT-Hsp70-Nef protein demonstrated promising results in both computational and experimental analyses compared to the NT-Hsp70-Nef protein.</p>","PeriodicalId":18497,"journal":{"name":"Microbes and Infection","volume":" ","pages":"105480"},"PeriodicalIF":2.6,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143432538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Endogenous retroviruses in neurodevelopmental, psychotic and cognitive disorders.
IF 2.6 4区 医学
Microbes and Infection Pub Date : 2025-02-04 DOI: 10.1016/j.micinf.2025.105479
Urs Meyer, Iris Katharina Penner
{"title":"Endogenous retroviruses in neurodevelopmental, psychotic and cognitive disorders.","authors":"Urs Meyer, Iris Katharina Penner","doi":"10.1016/j.micinf.2025.105479","DOIUrl":"10.1016/j.micinf.2025.105479","url":null,"abstract":"<p><p>Endogenous retroviruses (ERVs) are inherited retroviral genomic elements that integrated into the mammalian genome through germline infections and insertions during evolution. Human ERVs (HERVs) comprise approximately 8 % of the human genome and are increasingly recognized to be involved in the etiology and pathophysiology of numerous brain disorders. In this narrative review, we summarize the existing evidence linking abnormal HERV expression to neurodevelopmental and psychosis-related disorders and discuss how these retroviral elements may contribute to the heterogeneity in clinical outcomes. We also review the findings suggesting that aberrant HERV expression contribute to late-onset cognitive disorders with neurodegenerative components, such as Alzheimer's disease (AD) and other forms of dementia. The evidence implicating abnormal HERV expression in neurodevelopmental, psychotic, and cognitive disorders is manifold and stems from diverse research fields, including human post-mortem brain studies, serological investigations, gene expression analyses, and clinical trials with HERV-specific pharmacological compounds. The recent establishment and use of animal models offer a complementary experimental platform that will help establish causal relationships and identify specific disease pathways affected by abnormal HERV expression. Yet, significant gaps persist in understanding the role of HERVs in neurodevelopmental, psychotic, and cognitive disorders, particularly concerning the specificity and stability of abnormal HERV expression in these conditions. Addressing these questions appears crucial for optimizing the potential benefits of therapeutic interventions aimed at targeting abnormal HERV expression across the broad spectrum of HERV-associated disorders of the central nervous system.</p>","PeriodicalId":18497,"journal":{"name":"Microbes and Infection","volume":" ","pages":"105479"},"PeriodicalIF":2.6,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143365055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identification of immune-associated genes involved in latent Mycobacterium marinum infection 鉴定参与潜伏分枝杆菌感染的免疫相关基因。
IF 2.6 4区 医学
Microbes and Infection Pub Date : 2025-02-01 DOI: 10.1016/j.micinf.2024.105407
Pingping Jia , Shize Peng , Yi Zhang , Jianyuan Zhao , Qianqian Zhao , Xiaoxiao Wu , Fangqi Shen , Kai Sun , Liyan Yu , Shan Cen
{"title":"Identification of immune-associated genes involved in latent Mycobacterium marinum infection","authors":"Pingping Jia ,&nbsp;Shize Peng ,&nbsp;Yi Zhang ,&nbsp;Jianyuan Zhao ,&nbsp;Qianqian Zhao ,&nbsp;Xiaoxiao Wu ,&nbsp;Fangqi Shen ,&nbsp;Kai Sun ,&nbsp;Liyan Yu ,&nbsp;Shan Cen","doi":"10.1016/j.micinf.2024.105407","DOIUrl":"10.1016/j.micinf.2024.105407","url":null,"abstract":"<div><div>Tuberculosis (TB) is a high mortality infectious disease caused by <em>Mycobacterium tuberculosis</em> (Mtb), and often develops into latent infection. About 5~10% of latent infections turn into active tuberculosis when the host immune system becomes deficient. Therefore, exploring the latent infection mechanism of Mtb is pivotal for the prevention and treatment of tuberculosis. We first established the zebrafish latent infection model and the chronic infection model utilizing <em>Mycobacterium marinum</em>, which has the highly similar gene background to Mtb. Using the latent infection model, we characterized the gene expression profiles and found 462 genes expressed differentially in the latent period and chronic tuberculosis infection. These differentially expressed genes are involved in various biological processes including transcription, transcriptional regulation, organism development, and immune responses. Among them, nineteen immune-related genes were found to express differentially in the latent period. By analyzing immune related protein network, the genes in the center of the network, including Nos2b, TNFα, IL1, TNFβ, TLR1, TLR2, and TLR4b, displayed significant deferential expression in latent infection and chronic infection period of zebrafish, suggesting that these genes might play an important role in controlling latent infection of Mtb. Identifying immune biomarker related to the status of tuberculosis latent infection might lead to novel strategy for diagnosis and treatment.</div></div>","PeriodicalId":18497,"journal":{"name":"Microbes and Infection","volume":"27 2","pages":"Article 105407"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142046883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microneedle-based arrays – Breakthrough strategy for the treatment of bacterial and fungal skin infections 微针阵列--治疗细菌和真菌皮肤感染的突破性策略。
IF 2.6 4区 医学
Microbes and Infection Pub Date : 2025-02-01 DOI: 10.1016/j.micinf.2024.105426
Oliwia Kordyl , Zuzanna Styrna , Monika Wojtyłko , Bozena Michniak-Kohn , Tomasz Osmałek
{"title":"Microneedle-based arrays – Breakthrough strategy for the treatment of bacterial and fungal skin infections","authors":"Oliwia Kordyl ,&nbsp;Zuzanna Styrna ,&nbsp;Monika Wojtyłko ,&nbsp;Bozena Michniak-Kohn ,&nbsp;Tomasz Osmałek","doi":"10.1016/j.micinf.2024.105426","DOIUrl":"10.1016/j.micinf.2024.105426","url":null,"abstract":"<div><div>Currently, fungal and bacterial skin infections rank among the most challenging public health problems due to the increasing prevalence of microorganisms and the development of resistance to available drugs. A major issue in treating these infections with conventional topical medications is the poor penetration through the <em>stratum corneum</em>, the outermost layer of the skin. The concept of microneedles seems to be a future-proof approach for delivering drugs directly into deeper tissues. By bypassing the skin barrier, microneedle systems allow therapeutic substances to reach deeper layers more efficiently, significantly improving treatment outcomes. Nonetheless, the primary challenges regarding the effectiveness of microneedles involve selecting the appropriate size and shape, along with polymer composition and fabrication technology, to enable controlled and efficient drug release. This review offers a comprehensive overview of the latest knowledge on microneedle types and manufacturing techniques, highlighting their potential effectiveness in treating bacterial and fungal skin infections. It includes updated statistics on infection prevalence and provides a detailed examination of common bacterial and fungal diseases, focusing on their symptoms, causative species, and treatment methods. Additionally, the review addresses safety considerations, regulatory aspects, and future perspectives for microneedle-based therapeutic systems. It also underscores the importance of industrialization and clinical translation efforts, emphasizing the significant potential of microneedle technology for advancing medical applications.</div></div>","PeriodicalId":18497,"journal":{"name":"Microbes and Infection","volume":"27 2","pages":"Article 105426"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142349788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cutibacterium acnes as an overseen autoimmunity trigger: Unearthing heat-shock driven molecular mimicry 痤疮分枝杆菌是一种被忽视的自身免疫诱因:揭示热冲击驱动的分子拟态
IF 2.6 4区 医学
Microbes and Infection Pub Date : 2025-02-01 DOI: 10.1016/j.micinf.2024.105420
Jelena Repac, Bojan Božić, Biljana Božić Nedeljković
{"title":"Cutibacterium acnes as an overseen autoimmunity trigger: Unearthing heat-shock driven molecular mimicry","authors":"Jelena Repac,&nbsp;Bojan Božić,&nbsp;Biljana Božić Nedeljković","doi":"10.1016/j.micinf.2024.105420","DOIUrl":"10.1016/j.micinf.2024.105420","url":null,"abstract":"<div><div><em>Cutibacterium acnes</em>, common resident of the human skin, can establish both commensal and pathogenic relations with the human host; however, long-term consequences of <em>C. acnes-</em>induced inflammation remained un(der)explored. To infer the capacity of triggering autoimmunity in humans <em>via</em> molecular mimicry, a comprehensive immunoinformatics analysis of the experimentally characterized <em>C. acnes</em> proteome was performed. The protocol included homology screening between the <em>C. acnes</em> and the human proteome, and validation of shared specificity regions against the collection of experimentally characterized T-cell epitopes, related to autoimmunity. To obtain highly reliable predictions, the results were subjected to additional cross-validation by a dedicated MHC-restriction analysis, including a docking study of <em>C. acnes</em> mimotopes and human counterparts with the highest degree of sequence similarity to MHCII molecules representing the highest risk for detected autoimmune pathologies. Due to mimicking of highly immunogenic, but also evolutionary conserved autoantigens from the Heat Shock protein family, association between <em>C. acnes</em> and the pathogenesis of highly incident autoimmune diseases: Type 1 Diabetes, Rheumatoid Arthritis, and Juvenile Idiopathic Arthritis, was found. To the best of our knowledge, this study is the first one to provide preliminary information and a mechanistic link on the putative involvement of <em>C. acnes</em> in the pathogenesis of autoimmunity in humans.</div></div>","PeriodicalId":18497,"journal":{"name":"Microbes and Infection","volume":"27 2","pages":"Article 105420"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142154543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microbiota transfer early after birth modulates genetic susceptibility to chronic arthritis in mice 出生后早期的微生物群转移可调节小鼠对慢性关节炎的遗传易感性。
IF 2.6 4区 医学
Microbes and Infection Pub Date : 2025-02-01 DOI: 10.1016/j.micinf.2024.105411
Andrea Borrego , Wafa Hanna Koury Cabrera , Alanis Tiozzo Souza , Silas Fernandes Eto , Silvio Luis de Oliveira , Josias Rodrigues , José Ricardo Jensen
{"title":"Microbiota transfer early after birth modulates genetic susceptibility to chronic arthritis in mice","authors":"Andrea Borrego ,&nbsp;Wafa Hanna Koury Cabrera ,&nbsp;Alanis Tiozzo Souza ,&nbsp;Silas Fernandes Eto ,&nbsp;Silvio Luis de Oliveira ,&nbsp;Josias Rodrigues ,&nbsp;José Ricardo Jensen","doi":"10.1016/j.micinf.2024.105411","DOIUrl":"10.1016/j.micinf.2024.105411","url":null,"abstract":"<div><div>Genetics is central to the susceptibility or resistance to autoimmunity, and mounting evidence indicates that the intestinal microbiota also plays an essential role. In murine arthritis models, short-chain fat acid supplementation reduces disease severity by modulating tryptophan-metabolizing bacteria. Common microbiota transfer methods modulate arthritis severity, however, they are not practical for chronic models such as pristane-induced arthritis (PIA). PIA-resistant (HIII) and PIA-susceptible (LIII) mice harbor diverse intestinal microbiomes, which might be implicated in their divergent susceptibility. To investigate this hypothesis, we used cross-fostering to stably transfer the microbiota. In this study, we show that extreme susceptibility to arthritis can be modulated by early microbiota transfer, with long-lasting effects. HIII and LIII pups were cross-fostered and injected with pristane after weaning. PIA severity in cross-fostered LIII mice was significantly reduced in the chronic phase. Metagenomic analyses showed that HIII and LIII microbiomes were partly shifted by cross-fostering. Microbial groups whose abundance was associated with either HIII or LIII mice presented similar composition in cross-fostered mice of the opposite strains, suggesting a role in PIA susceptibility. Identification of bacterial groups that modulate chronic arthritis will contribute novel insights on the pathogenesis of human rheumatoid arthritis and targets for replication and functional studies.</div></div>","PeriodicalId":18497,"journal":{"name":"Microbes and Infection","volume":"27 2","pages":"Article 105411"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142109246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phylogenetic analysis of Mycobacterium caprae highlights past and present epidemiological links at the Iberian Peninsula scale Caprae 分枝杆菌的系统发育分析凸显了伊比利亚半岛过去和现在的流行病学联系。
IF 2.6 4区 医学
Microbes and Infection Pub Date : 2025-02-01 DOI: 10.1016/j.micinf.2024.105405
André C. Pereira , Bernat Pérez de Val , Mónica V. Cunha
{"title":"Phylogenetic analysis of Mycobacterium caprae highlights past and present epidemiological links at the Iberian Peninsula scale","authors":"André C. Pereira ,&nbsp;Bernat Pérez de Val ,&nbsp;Mónica V. Cunha","doi":"10.1016/j.micinf.2024.105405","DOIUrl":"10.1016/j.micinf.2024.105405","url":null,"abstract":"<div><div><em>Mycobacterium caprae</em> is linked to regular outbreaks of tuberculosis (TB) in geographically distinct caprine populations across Europe, namely Iberia where this ecovar may represent up to 8% of total animal TB cases, circulating in multi-host communities encompassing domestic ruminants and wildlife, representing severe financial losses. It also causes zoonotic human disease. In this work, we undertake the first phylodynamic and phylogeographic analyses of <em>M. caprae</em> to reconstruct past demography and transmission chains. First, we examined the worldwide diversity of <em>M. caprae</em> based on 229 unpublished and publicly available whole genome sequences, depicting Asian, Central-East European, and Iberian clades. Phylodynamic analyses of the SB0157 Iberian clade (n = 81) positioned the most recent common ancestor in goats, around 100 years ago. Host transition events were common between goats, wild boars, and humans, possibly resulting from mixed farming, extensive management, and close human proximity, facilitating interspecific transmission. We show the spread of <em>M. caprae</em> on multiple scales due to local and transnational animal trade, supporting historical and sustained cross-species transmission in Iberia. We highlight the value of intersecting genomic epidemiology with molecular ecology to resolve epidemiological links and show that an EU-official eradication program in goats is utterly needed to control TB in a multi-host scenario.</div></div>","PeriodicalId":18497,"journal":{"name":"Microbes and Infection","volume":"27 2","pages":"Article 105405"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142036280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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