Pub Date : 2024-11-01Epub Date: 2024-07-15DOI: 10.1016/j.tplants.2024.07.002
Vidhi Raturi, Gaurav Zinta
Warm temperatures and heat stress trigger distinct plant responses. Recently, Li et al. and Tan et al. identified HSFA1 heat shock transcription factors (HSFs) as central gatekeepers of high-temperature signaling, integrating warm temperature and heat shock responses (HSRs) in arabidopsis (Arabidopsis thaliana). HSFA1d stabilizes phytochrome-interacting factor 4 (PIF4) and activates HSFA2, establishing a crosstalk between thermomorphogenesis and thermotolerance.
高温和热胁迫会引发不同的植物反应。最近,Li 等人和 Tan 等人发现 HSFA1 热休克转录因子(HSFs)是高温信号传导的核心看门人,它整合了拟南芥(Arabidopsis thaliana)的暖温和热休克反应(HSRs)。HSFA1d 稳定植物色素互作因子 4(PIF4)并激活 HSFA2,在热形态发生和耐热性之间建立了串联。
{"title":"HSFA1 heat shock factors integrate warm temperature and heat signals in plants.","authors":"Vidhi Raturi, Gaurav Zinta","doi":"10.1016/j.tplants.2024.07.002","DOIUrl":"10.1016/j.tplants.2024.07.002","url":null,"abstract":"<p><p>Warm temperatures and heat stress trigger distinct plant responses. Recently, Li et al. and Tan et al. identified HSFA1 heat shock transcription factors (HSFs) as central gatekeepers of high-temperature signaling, integrating warm temperature and heat shock responses (HSRs) in arabidopsis (Arabidopsis thaliana). HSFA1d stabilizes phytochrome-interacting factor 4 (PIF4) and activates HSFA2, establishing a crosstalk between thermomorphogenesis and thermotolerance.</p>","PeriodicalId":17,"journal":{"name":"ACS Infectious Diseases","volume":" ","pages":"1165-1167"},"PeriodicalIF":17.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141627746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Auxin is a key phytohormone, but the mechanism underlying apoplastic auxin perception has remained elusive. Yu et al. recently demonstrated that the interaction of two novel apoplast-localized auxin-binding protein 1 (ABP1)-like proteins, ABL1 and ABL2, with transmembrane kinases (TMKs) shapes extracellular auxin perception in both an overlapping and an ABP1-independent manner.
{"title":"ABLs and transmembrane kinases shape extracellular auxin perception.","authors":"Saumya Jaiswal, Durgesh Kumar Tripathi, Yiming Wang, Vijay Pratap Singh, Ravi Gupta","doi":"10.1016/j.tplants.2024.07.004","DOIUrl":"10.1016/j.tplants.2024.07.004","url":null,"abstract":"<p><p>Auxin is a key phytohormone, but the mechanism underlying apoplastic auxin perception has remained elusive. Yu et al. recently demonstrated that the interaction of two novel apoplast-localized auxin-binding protein 1 (ABP1)-like proteins, ABL1 and ABL2, with transmembrane kinases (TMKs) shapes extracellular auxin perception in both an overlapping and an ABP1-independent manner.</p>","PeriodicalId":17,"journal":{"name":"ACS Infectious Diseases","volume":" ","pages":"1162-1164"},"PeriodicalIF":17.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141761118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Within the continuous tug-of-war between plants and microbes, RNA silencing stands out as a key battleground. Pathogens, in their quest to colonize host plants, have evolved a diverse arsenal of silencing suppressors as a common strategy to undermine the host's RNA silencing-based defenses. When RNA silencing malfunctions in the host, genes that are usually targeted and silenced by microRNAs (miRNAs) become active and can contribute to the reprogramming of host cells, providing an additional defense mechanism. A growing body of evidence suggests that miRNAs may act as intracellular sensors to enable a rapid response to pathogen threats. Herein we review how plant miRNA targets play a crucial role in immune responses against different pathogens.
{"title":"After silencing suppression: miRNA targets strike back.","authors":"Alessandro Silvestri, Chandni Bansal, Ignacio Rubio-Somoza","doi":"10.1016/j.tplants.2024.05.001","DOIUrl":"10.1016/j.tplants.2024.05.001","url":null,"abstract":"<p><p>Within the continuous tug-of-war between plants and microbes, RNA silencing stands out as a key battleground. Pathogens, in their quest to colonize host plants, have evolved a diverse arsenal of silencing suppressors as a common strategy to undermine the host's RNA silencing-based defenses. When RNA silencing malfunctions in the host, genes that are usually targeted and silenced by microRNAs (miRNAs) become active and can contribute to the reprogramming of host cells, providing an additional defense mechanism. A growing body of evidence suggests that miRNAs may act as intracellular sensors to enable a rapid response to pathogen threats. Herein we review how plant miRNA targets play a crucial role in immune responses against different pathogens.</p>","PeriodicalId":17,"journal":{"name":"ACS Infectious Diseases","volume":" ","pages":"1266-1276"},"PeriodicalIF":17.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141176442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01Epub Date: 2024-05-30DOI: 10.1016/j.tplants.2024.04.010
Chunjie Li, Hans Lambers, Jingying Jing, Chaochun Zhang, T Martijn Bezemer, John Klironomos, Wen-Feng Cong, Fusuo Zhang
Crop diversification practices offer numerous synergistic benefits. So far, research has traditionally been confined to exploring isolated, unidirectional single-process interactions among plants, soil, and microorganisms. Here, we present a novel and systematic perspective, unveiling the intricate web of plant-soil-microbiome interactions that trigger cascading effects. Applying the principles of cascading interactions can be an alternative way to overcome soil obstacles such as soil compaction and soil pathogen pressure. Finally, we introduce a research framework comprising the design of diversified cropping systems by including commercial varieties and crops with resource-efficient traits, the exploration of cascading effects, and the innovation of field management. We propose that this provides theoretical and methodological insights that can reveal new mechanisms by which crop diversity increases productivity.
{"title":"Belowground cascading biotic interactions trigger crop diversity benefits.","authors":"Chunjie Li, Hans Lambers, Jingying Jing, Chaochun Zhang, T Martijn Bezemer, John Klironomos, Wen-Feng Cong, Fusuo Zhang","doi":"10.1016/j.tplants.2024.04.010","DOIUrl":"10.1016/j.tplants.2024.04.010","url":null,"abstract":"<p><p>Crop diversification practices offer numerous synergistic benefits. So far, research has traditionally been confined to exploring isolated, unidirectional single-process interactions among plants, soil, and microorganisms. Here, we present a novel and systematic perspective, unveiling the intricate web of plant-soil-microbiome interactions that trigger cascading effects. Applying the principles of cascading interactions can be an alternative way to overcome soil obstacles such as soil compaction and soil pathogen pressure. Finally, we introduce a research framework comprising the design of diversified cropping systems by including commercial varieties and crops with resource-efficient traits, the exploration of cascading effects, and the innovation of field management. We propose that this provides theoretical and methodological insights that can reveal new mechanisms by which crop diversity increases productivity.</p>","PeriodicalId":17,"journal":{"name":"ACS Infectious Diseases","volume":" ","pages":"1191-1202"},"PeriodicalIF":17.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141184755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1126/sciimmunol.adr6672
Alexander Mildner, Simon Yona
Identity confusion has emerged in the field of monocyte research with the identification of monocyte-like “doppelgänger” populations that exhibit phenotypical traits of classical monocytes but seem to vary in their origin, function, or migration behavior.
{"title":"Monocytes and their doppelgängers: An immunological crossroads","authors":"Alexander Mildner, Simon Yona","doi":"10.1126/sciimmunol.adr6672","DOIUrl":"10.1126/sciimmunol.adr6672","url":null,"abstract":"<div >Identity confusion has emerged in the field of monocyte research with the identification of monocyte-like “doppelgänger” populations that exhibit phenotypical traits of classical monocytes but seem to vary in their origin, function, or migration behavior.</div>","PeriodicalId":17,"journal":{"name":"ACS Infectious Diseases","volume":"9 101","pages":""},"PeriodicalIF":17.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142562142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1038/s41567-024-02669-9
Michael J. Steel
Optical waveguides that route light are a core technology of modern photonics and the bedrock of the global communications network. A surprising diffusion mechanism for guiding light has now been identified, and it is strangely close to home.
{"title":"Diffusive light pipes","authors":"Michael J. Steel","doi":"10.1038/s41567-024-02669-9","DOIUrl":"https://doi.org/10.1038/s41567-024-02669-9","url":null,"abstract":"Optical waveguides that route light are a core technology of modern photonics and the bedrock of the global communications network. A surprising diffusion mechanism for guiding light has now been identified, and it is strangely close to home.","PeriodicalId":17,"journal":{"name":"ACS Infectious Diseases","volume":"116 1","pages":""},"PeriodicalIF":19.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Brad McKay, Abbey E Corson, Jeswende Seedu, Celeste S De Faveri, Hibaa Hasan, Kristen Arnold, Faith C Adams, Michael J Carter
Evidence has ostensibly been accumulating over the past 2 decades suggesting that an external focus on the intended movement effect (e.g., on the golf club during a swing) is superior to an internal focus on body movements (e.g., on your arms during a swing) for skill acquisition. Seven previous meta-studies have all reported evidence of external focus superiority. The most comprehensive of these concluded that an external focus enhances motor skill retention, transfer, and performance and leads to reduced eletromyographic activity during performance and that more distal external foci are superior to proximal external foci for performance. Here, we reanalyzed these data using robust Bayesian meta-analyses that included several plausible models of publication bias. We found moderate to strong evidence of publication bias for all analyses. After correcting for publication bias, estimated mean effects were negligible: g = 0.01 (performance), g = 0.15 (retention), g = 0.09 (transfer), g = 0.06 (electromyography), and g = -0.01 (distance effect). Bayes factors indicated data favored the null for each analysis, ranging from BF01 = 1.3 (retention) to 5.75 (performance). We found clear evidence of heterogeneity in each analysis, suggesting the impact of attentional focus depends on yet unknown contextual factors. Our results contradict the existing consensus that an external focus is always more effective than an internal focus. Instead, focus of attention appears to have a variety of effects that we cannot account for, and, on average, those effects are small to nil. These results parallel previous metascience suggesting publication bias has obfuscated the motor learning literature. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
{"title":"Reporting bias, not external focus: A robust Bayesian meta-analysis and systematic review of the external focus of attention literature.","authors":"Brad McKay, Abbey E Corson, Jeswende Seedu, Celeste S De Faveri, Hibaa Hasan, Kristen Arnold, Faith C Adams, Michael J Carter","doi":"10.1037/bul0000451","DOIUrl":"10.1037/bul0000451","url":null,"abstract":"<p><p>Evidence has ostensibly been accumulating over the past 2 decades suggesting that an external focus on the intended movement effect (e.g., on the golf club during a swing) is superior to an internal focus on body movements (e.g., on your arms during a swing) for skill acquisition. Seven previous meta-studies have all reported evidence of external focus superiority. The most comprehensive of these concluded that an external focus enhances motor skill retention, transfer, and performance and leads to reduced eletromyographic activity during performance and that more distal external foci are superior to proximal external foci for performance. Here, we reanalyzed these data using robust Bayesian meta-analyses that included several plausible models of publication bias. We found moderate to strong evidence of publication bias for all analyses. After correcting for publication bias, estimated mean effects were negligible: g = 0.01 (performance), g = 0.15 (retention), g = 0.09 (transfer), g = 0.06 (electromyography), and g = -0.01 (distance effect). Bayes factors indicated data favored the null for each analysis, ranging from BF01 = 1.3 (retention) to 5.75 (performance). We found clear evidence of heterogeneity in each analysis, suggesting the impact of attentional focus depends on yet unknown contextual factors. Our results contradict the existing consensus that an external focus is always more effective than an internal focus. Instead, focus of attention appears to have a variety of effects that we cannot account for, and, on average, those effects are small to nil. These results parallel previous metascience suggesting publication bias has obfuscated the motor learning literature. (PsycInfo Database Record (c) 2024 APA, all rights reserved).</p>","PeriodicalId":17,"journal":{"name":"ACS Infectious Diseases","volume":"150 11","pages":"1347-1362"},"PeriodicalIF":17.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142547052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Salvador Vargas Salfate, Julia Spielmann, D A Briley
Research has suggested that the endorsement of ideologies supporting the status quo leads to higher subjective psychological well-being-an idea labeled as the palliative function of ideology within system justification theory. Furthermore, this approach has suggested that this association should be moderated by social status. Specifically, the association between the endorsement of ideologies supporting the status quo and well-being should be positive among high-status groups and negative among low-status groups-mainly as a function of the existence of a unique motivation to justify the status quo. Given contradictory evidence in previous studies, we conducted a meta-analysis to test these ideas. Across 1,627 studies and 1,856,940 participants, we observed a meta-analytic association between endorsement of ideologies supporting the status quo and well-being of r = .07, p < .001. Nonetheless, we did not find evidence supportive of the moderator role of social status. These results provide partial evidence supporting the main tenets of system justification theory, and they are inconsistent with the idea of the existence of a unique motivation to justify the status quo. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
研究表明,支持现状的意识形态会导致更高的主观心理幸福感--这一观点在系统合理性理论中被称为意识形态的缓和功能。此外,这种方法还认为,这种关联应受到社会地位的调节。具体来说,支持现状的意识形态与幸福感之间的关联在地位高的群体中应该是正向的,而在地位低的群体中应该是负向的--这主要是由于存在一种为现状辩护的独特动机。鉴于以往研究中存在相互矛盾的证据,我们进行了一项荟萃分析来验证这些观点。在 1,627 项研究和 1,856,940 名参与者中,我们观察到支持现状的意识形态与幸福感之间的元分析关联为 r = .07,p < .001。尽管如此,我们并没有发现支持社会地位调节作用的证据。这些结果提供了部分证据,支持系统合理化理论的主要原则,但它们与存在为现状辩护的独特动机的观点不一致。(PsycInfo Database Record (c) 2024 APA, 版权所有)。
{"title":"Supporting the status quo is weakly associated with subjective well-being: A comparison of the palliative function of ideology across social status groups using a meta-analytic approach.","authors":"Salvador Vargas Salfate, Julia Spielmann, D A Briley","doi":"10.1037/bul0000446","DOIUrl":"10.1037/bul0000446","url":null,"abstract":"<p><p>Research has suggested that the endorsement of ideologies supporting the status quo leads to higher subjective psychological well-being-an idea labeled as the palliative function of ideology within system justification theory. Furthermore, this approach has suggested that this association should be moderated by social status. Specifically, the association between the endorsement of ideologies supporting the status quo and well-being should be positive among high-status groups and negative among low-status groups-mainly as a function of the existence of a unique motivation to justify the status quo. Given contradictory evidence in previous studies, we conducted a meta-analysis to test these ideas. Across 1,627 studies and 1,856,940 participants, we observed a meta-analytic association between endorsement of ideologies supporting the status quo and well-being of r = .07, p < .001. Nonetheless, we did not find evidence supportive of the moderator role of social status. These results provide partial evidence supporting the main tenets of system justification theory, and they are inconsistent with the idea of the existence of a unique motivation to justify the status quo. (PsycInfo Database Record (c) 2024 APA, all rights reserved).</p>","PeriodicalId":17,"journal":{"name":"ACS Infectious Diseases","volume":"150 11","pages":"1318-1346"},"PeriodicalIF":17.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142547053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
High-performance memristors have emerged as efficient hardware for integrating noisy image recognition and noise reduction. Herein, we report a fast-switching memristor featuring tens of nanoseconds switching time fabricated using a vacancy-ordered double perovskite, Cs2TiBr6 nanocrystals. The spatially ordered vacancies in the double perovskite facilitate the predictable formation and rupture of conductive filaments, which are explored through a comprehensive simulation using the finite element analysis physical model. These unique microscopic features suppress random conducting filament growth and enhance bromine vacancy diffusion, boosting memristor switching speed. A further study of synapse-like behaviors reveals that Cs2TiBr6-based memristors exhibit high robustness and reproducibility. We further developed the crossbar-array memristors as artificial neural networks for image denoising and classification, achieving a 10% increase in recognition accuracy for pre-denoised images over non-denoised samples. Our work highlights the potential of intrinsic vacancy-ordered memristive materials for advancing efficient, real-time, robust visual recognition.
{"title":"Vacancy-ordered double-perovskite-based memristors for image processing and pattern recognition","authors":"Wentong Li, Yanyun Ren, Tianwei Duan, Hao Tang, Hao Li, Kaihuan Zhang, Yu Sun, Xiaoyu Zhang, Weitao Zheng, Martyn A. McLachlan, Zhongrui Wang, Yuanyuan Zhou, Jiaqi Zhang","doi":"10.1016/j.matt.2024.10.006","DOIUrl":"https://doi.org/10.1016/j.matt.2024.10.006","url":null,"abstract":"High-performance memristors have emerged as efficient hardware for integrating noisy image recognition and noise reduction. Herein, we report a fast-switching memristor featuring tens of nanoseconds switching time fabricated using a vacancy-ordered double perovskite, Cs<sub>2</sub>TiBr<sub>6</sub> nanocrystals. The spatially ordered vacancies in the double perovskite facilitate the predictable formation and rupture of conductive filaments, which are explored through a comprehensive simulation using the finite element analysis physical model. These unique microscopic features suppress random conducting filament growth and enhance bromine vacancy diffusion, boosting memristor switching speed. A further study of synapse-like behaviors reveals that Cs<sub>2</sub>TiBr<sub>6</sub>-based memristors exhibit high robustness and reproducibility. We further developed the crossbar-array memristors as artificial neural networks for image denoising and classification, achieving a 10% increase in recognition accuracy for pre-denoised images over non-denoised samples. Our work highlights the potential of intrinsic vacancy-ordered memristive materials for advancing efficient, real-time, robust visual recognition.","PeriodicalId":17,"journal":{"name":"ACS Infectious Diseases","volume":"213 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142562154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-01DOI: 10.1126/sciimmunol.adq9704
Bruna Araujo David, Jawairia Atif, Fernanda Vargas e Silva Castanheira, Tamanna Yasmin, Adrien Guillot, Yeni Ait Ahmed, Moritz Peiseler, Josefien W. Hommes, Lilian Salm, Marie-Anne Brundler, Bas G. J. Surewaard, Wael Elhenawy, Sonya MacParland, Florent Ginhoux, Kathy McCoy, Paul Kubes
In adults, liver-resident macrophages, or Kupffer cells (KCs), reside in the sinusoids and sterilize circulating blood by capturing rapidly flowing microbes. We developed quantitative intravital imaging of 1-day-old mice combined with transcriptomics, genetic manipulation, and in vivo infection assays to interrogate increased susceptibility of newborns to bloodstream infections. Whereas 1-day-old KCs were better at catching Escherichia coli in vitro, we uncovered a critical 1-week window postpartum when KCs have limited access to blood and must translocate from liver parenchyma into the sinusoids. KC migration was independent of the microbiome but depended on macrophage migration inhibitory factor, its receptor CD74, and the adhesion molecule CD44. On the basis of our findings, we propose a model of progenitor macrophage seeding of the liver sinusoids via a reverse transmigration process from liver parenchyma. These results also illustrate the importance of developing newborn mouse models to understand newborn immunity and disease.
{"title":"Kupffer cell reverse migration into the liver sinusoids mitigates neonatal sepsis and meningitis","authors":"Bruna Araujo David, Jawairia Atif, Fernanda Vargas e Silva Castanheira, Tamanna Yasmin, Adrien Guillot, Yeni Ait Ahmed, Moritz Peiseler, Josefien W. Hommes, Lilian Salm, Marie-Anne Brundler, Bas G. J. Surewaard, Wael Elhenawy, Sonya MacParland, Florent Ginhoux, Kathy McCoy, Paul Kubes","doi":"10.1126/sciimmunol.adq9704","DOIUrl":"10.1126/sciimmunol.adq9704","url":null,"abstract":"<div >In adults, liver-resident macrophages, or Kupffer cells (KCs), reside in the sinusoids and sterilize circulating blood by capturing rapidly flowing microbes. We developed quantitative intravital imaging of 1-day-old mice combined with transcriptomics, genetic manipulation, and in vivo infection assays to interrogate increased susceptibility of newborns to bloodstream infections. Whereas 1-day-old KCs were better at catching <i>Escherichia coli</i> in vitro, we uncovered a critical 1-week window postpartum when KCs have limited access to blood and must translocate from liver parenchyma into the sinusoids. KC migration was independent of the microbiome but depended on macrophage migration inhibitory factor, its receptor CD74, and the adhesion molecule CD44. On the basis of our findings, we propose a model of progenitor macrophage seeding of the liver sinusoids via a reverse transmigration process from liver parenchyma. These results also illustrate the importance of developing newborn mouse models to understand newborn immunity and disease.</div>","PeriodicalId":17,"journal":{"name":"ACS Infectious Diseases","volume":"9 101","pages":""},"PeriodicalIF":17.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.science.org/doi/reader/10.1126/sciimmunol.adq9704","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142562161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}