Journal of Experimental Medicine最新文献

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PTPN23-dependent activation of PI3KC2α is a therapeutic vulnerability of BRAF-mutant cancers. ptpn23依赖性激活PI3KC2α是braf突变型癌症的治疗易感性。
IF 12.6 1区 医学
Journal of Experimental Medicine Pub Date : 2025-03-03 Epub Date: 2025-01-22 DOI: 10.1084/jem.20241147
Ying He, Wei Li, Meiling Zhang, Hui Wang, Peilu Lin, Ying Yu, Bin Huang, Meng Hao, Jianuo He, Weiyao Kong, Dan Luo, Tengteng Xu, Jiaqi Wang, Ying Huang, Qinwen Zhao, Ying Liu, Jie Zhang, Yong Nian, Lei Zhang, Bo Zhu, Chengqian Yin
{"title":"PTPN23-dependent activation of PI3KC2α is a therapeutic vulnerability of BRAF-mutant cancers.","authors":"Ying He, Wei Li, Meiling Zhang, Hui Wang, Peilu Lin, Ying Yu, Bin Huang, Meng Hao, Jianuo He, Weiyao Kong, Dan Luo, Tengteng Xu, Jiaqi Wang, Ying Huang, Qinwen Zhao, Ying Liu, Jie Zhang, Yong Nian, Lei Zhang, Bo Zhu, Chengqian Yin","doi":"10.1084/jem.20241147","DOIUrl":"10.1084/jem.20241147","url":null,"abstract":"<p><p>BRAF mutations drive initiation and progression of various tumors. While BRAF inhibitors are effective in BRAF-mutant melanoma patients, intrinsic or acquired resistance to these therapies is common. Here, we identify non-receptor-type protein tyrosine phosphatase 23 (PTPN23) as an alternative effective target in BRAF-mutant cancer cells. Silencing PTPN23 selectively kills BRAF-mutant melanoma cells but not those with wild-type BRAF. Mechanistically, PTPN23, a catalytically inactive phosphatase, intriguingly induces WNK3-mediated phosphorylation of phosphoinositide 3-kinase class II alpha (PI3KC2α) at serine 329, enhancing its catalytic activity. This activation promotes production of PI(3,4)P2 and subsequent AKT2 activation at endosomes to support cell survival. Genetic or pharmacological targeting of the PTPN23-PI3KC2α-AKT2 signaling axis, alone or in combination with BRAF inhibitors, effectively inhibits the growth of BRAF-mutant melanoma and other cancers in vitro and in vivo. We also demonstrate that melanocyte-specific knockout of PTPN23 significantly inhibits BRAFV600E-driven melanomagenesis. Altogether, our findings demonstrate that targeting PTPN23/PI3KC2α offers a new and viable therapeutic strategy for BRAF-mutant cancers.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":"222 3","pages":""},"PeriodicalIF":12.6,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11753290/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143006477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
pDCs, type 1 IFN, and the female predileXion of SSc. pDCs、1型IFN与SSc的女性倾向。
IF 12.6 1区 医学
Journal of Experimental Medicine Pub Date : 2025-03-03 Epub Date: 2025-01-17 DOI: 10.1084/jem.20242284
Nikhil Jiwrajka, Montserrat C Anguera
{"title":"pDCs, type 1 IFN, and the female predileXion of SSc.","authors":"Nikhil Jiwrajka, Montserrat C Anguera","doi":"10.1084/jem.20242284","DOIUrl":"10.1084/jem.20242284","url":null,"abstract":"<p><p>Systemic sclerosis (SSc) is a debilitating autoimmune disease that preferentially afflicts women. The molecular origins of this female bias are unclear. A new study of plasmacytoid dendritic cells from SSc patients by Du et al. (https://doi.org/10.1084/jem.20231809) suggests the X chromosome may play a key role.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":"222 3","pages":""},"PeriodicalIF":12.6,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11740917/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143006475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
The α glycolipid rules the NKT cell TCR. α糖脂控制NKT细胞TCR。
IF 12.6 1区 医学
Journal of Experimental Medicine Pub Date : 2025-02-03 Epub Date: 2024-12-23 DOI: 10.1084/jem.20242099
Mitchell Kronenberg, Gabriel Ascui
{"title":"The α glycolipid rules the NKT cell TCR.","authors":"Mitchell Kronenberg, Gabriel Ascui","doi":"10.1084/jem.20242099","DOIUrl":"10.1084/jem.20242099","url":null,"abstract":"<p><p>In this issue of JEM, Hosono et al. (https://doi.org/10.1084/jem.20240728) characterize a putative self- glycolipid that engages the iNKT cell TCR when bound to CD1d. The expression and distribution of this compound helps to explain some of the unusual properties of invariant NKT cells.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":"222 2","pages":""},"PeriodicalIF":12.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11665446/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142877362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Natural antibodies to polysaccharide capsules enable Kupffer cells to capture invading bacteria in the liver sinusoids. 多糖胶囊的天然抗体使库普弗细胞能够捕获肝窦中的入侵细菌。
IF 12.6 1区 医学
Journal of Experimental Medicine Pub Date : 2025-02-03 Epub Date: 2024-12-24 DOI: 10.1084/jem.20240735
Xianbin Tian, Yanni Liu, Kun Zhu, Haoran An, Jie Feng, Linqi Zhang, Jing-Ren Zhang
{"title":"Natural antibodies to polysaccharide capsules enable Kupffer cells to capture invading bacteria in the liver sinusoids.","authors":"Xianbin Tian, Yanni Liu, Kun Zhu, Haoran An, Jie Feng, Linqi Zhang, Jing-Ren Zhang","doi":"10.1084/jem.20240735","DOIUrl":"10.1084/jem.20240735","url":null,"abstract":"<p><p>The interception of blood-borne bacteria in the liver defines the outcomes of invasive bacterial infections, but the mechanisms of this antibacterial immunity are not fully understood. This study shows that natural antibodies (nAbs) to capsules enable liver macrophage Kupffer cells (KCs) to rapidly capture and kill blood-borne encapsulated bacteria in mice. Affinity pulldown with serotype-10A capsular polysaccharides (CPS10A) of Streptococcus pneumoniae (Spn10A) led to the identification of CPS10A-binding nAbs in serum. The CPS10A-antibody interaction enabled KCs to capture Spn10A bacteria from the bloodstream, in part through complement receptors on KCs. The nAbs were found to recognize the β1-6-linked galactose branch of CPS10A and similar moieties of serotype-39 S. pneumoniae and serotype-K50 Klebsiella pneumoniae capsules. More importantly, the nAbs empowered KCs to capture serotype-39 S. pneumoniae and serotype-K50 K. pneumoniae in the liver. Collectively, our data have revealed a highly effective immune function of nAb against encapsulated bacteria and emphasize the concept of treating septic encapsulated bacterial diseases with monoclonal antibodies.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":"222 2","pages":""},"PeriodicalIF":12.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11668174/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142882146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Cigarette smoke components modulate the MR1-MAIT axis. 香烟烟雾成分调节MR1-MAIT轴。
IF 12.6 1区 医学
Journal of Experimental Medicine Pub Date : 2025-02-03 Epub Date: 2025-01-17 DOI: 10.1084/jem.20240896
Wael Awad, Jemma R Mayall, Weijun Xu, Matt D Johansen, Timothy Patton, Xin Yi Lim, Izabela Galvao, Lauren J Howson, Alexandra C Brown, Tatt Jhong Haw, Chantal Donovan, Shatarupa Das, Gesa J Albers, Tsung-Yu Pai, Elinor Hortle, Caitlin M Gillis, Nicole G Hansbro, Jay C Horvat, Ligong Liu, Jeffrey Y W Mak, James McCluskey, David P Fairlie, Alexandra J Corbett, Philip M Hansbro, Jamie Rossjohn
{"title":"Cigarette smoke components modulate the MR1-MAIT axis.","authors":"Wael Awad, Jemma R Mayall, Weijun Xu, Matt D Johansen, Timothy Patton, Xin Yi Lim, Izabela Galvao, Lauren J Howson, Alexandra C Brown, Tatt Jhong Haw, Chantal Donovan, Shatarupa Das, Gesa J Albers, Tsung-Yu Pai, Elinor Hortle, Caitlin M Gillis, Nicole G Hansbro, Jay C Horvat, Ligong Liu, Jeffrey Y W Mak, James McCluskey, David P Fairlie, Alexandra J Corbett, Philip M Hansbro, Jamie Rossjohn","doi":"10.1084/jem.20240896","DOIUrl":"https://doi.org/10.1084/jem.20240896","url":null,"abstract":"<p><p>Tobacco smoking is prevalent across the world and causes numerous diseases. Cigarette smoke (CS) compromises immunity, yet little is known of the components of CS that impact T cell function. MR1 is a ubiquitous molecule that presents bacterial metabolites to MAIT cells, which are highly abundant in the lungs. Using in silico, cellular, and biochemical approaches, we identified components of CS that bind MR1 and impact MR1 cell surface expression. Compounds, including nicotinaldehyde, phenylpropanoid, and benzaldehyde-related scaffolds, bound within the A' pocket of MR1. CS inhibited MAIT cell activation, ex vivo, via TCR-dependent and TCR-independent mechanisms. Chronic CS exposure altered MAIT cell phenotype and function and attenuated MAIT cell responses to influenza A virus infection in vivo. MR1-deficient mice were partially protected from the development of chronic obstructive pulmonary disease (COPD) features that were associated with CS exposure. Thus, CS can impair MAIT cell function by diverse mechanisms, and potentially contribute to infection susceptibility and disease exacerbations.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":"222 2","pages":""},"PeriodicalIF":12.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11740918/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143006488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Dual role of vascular endothelial growth factor-C in post-stroke recovery. 血管内皮生长因子- c在脑卒中后恢复中的双重作用。
IF 12.6 1区 医学
Journal of Experimental Medicine Pub Date : 2025-02-03 Epub Date: 2024-12-12 DOI: 10.1084/jem.20231816
Yun Hwa Choi, Martin Hsu, Collin Laaker, Jenna Port, Kristóf G Kovács, Melinda Herbath, Heeyoon Yang, Peter Cismaru, Alexis M Johnson, Bailey Spellman, Kelsey Wigand, Matyas Sandor, Zsuzsanna Fabry
{"title":"Dual role of vascular endothelial growth factor-C in post-stroke recovery.","authors":"Yun Hwa Choi, Martin Hsu, Collin Laaker, Jenna Port, Kristóf G Kovács, Melinda Herbath, Heeyoon Yang, Peter Cismaru, Alexis M Johnson, Bailey Spellman, Kelsey Wigand, Matyas Sandor, Zsuzsanna Fabry","doi":"10.1084/jem.20231816","DOIUrl":"10.1084/jem.20231816","url":null,"abstract":"<p><p>Cerebrospinal fluid (CSF), antigens, and antigen-presenting cells drain from the central nervous system (CNS) into lymphatic vessels near the cribriform plate and dura, yet the role of these vessels during stroke is unclear. Using a mouse model of ischemic stroke, transient middle cerebral artery occlusion (tMCAO), we demonstrate stroke-induced lymphangiogenesis near the cribriform plate, peaking at day 7 and regressing by day 14. Lymphangiogenesis is restricted to the cribriform plate and deep cervical lymph nodes and is regulated by VEGF-C/VEGFR-3 signaling. The use of a VEGFR-3 inhibitor prevented lymphangiogenesis and led to improved stroke outcomes at earlier time points, with no effects at later time points. VEGF-C delivery after tMCAO did not further increase post-stroke lymphangiogenesis, but instead induced larger brain infarcts. Our data support the damaging role of VEGF-C acutely and a pro-angiogenic role chronically. This nuanced understanding of VEGFR-3 and VEGF-C in stroke pathology advises caution regarding therapeutic VEGF-C use in stroke.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":"222 2","pages":""},"PeriodicalIF":12.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11636551/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142813288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
A common form of dominant human IFNAR1 deficiency impairs IFN-α and -ω but not IFN-β-dependent immunity. 一种常见的显性人类IFNAR1缺陷会损害IFN-α和-ω,但不会损害IFN-β依赖性免疫。
IF 12.6 1区 医学
Journal of Experimental Medicine Pub Date : 2025-02-03 Epub Date: 2024-12-16 DOI: 10.1084/jem.20241413
Fahd Al Qureshah, Jérémie Le Pen, Nicole A de Weerd, Marcela Moncada-Velez, Marie Materna, Daniel C Lin, Baptiste Milisavljevic, Fernanda Vianna, Lucy Bizien, Lazaro Lorenzo, Marc Lecuit, Jean-David Pommier, Sevgi Keles, Tayfun Ozcelik, Sigifredo Pedraza-Sanchez, Nicolas de Prost, Loubna El Zein, Hassan Hammoud, Lisa F P Ng, Rabih Halwani, Narjes Saheb Sharif-Askari, Yu Lung Lau, Anthony R Tam, Neha Singh, Sagar Bhattad, Yackov Berkun, Wasun Chantratita, Raúl Aguilar-López, Mohammad Shahrooei, Laurent Abel, Paul Bastard, Emmanuelle Jouanguy, Vivien Béziat, Peng Zhang, Charles M Rice, Aurélie Cobat, Shen-Ying Zhang, Paul J Hertzog, Jean-Laurent Casanova, Qian Zhang
{"title":"A common form of dominant human IFNAR1 deficiency impairs IFN-α and -ω but not IFN-β-dependent immunity.","authors":"Fahd Al Qureshah, Jérémie Le Pen, Nicole A de Weerd, Marcela Moncada-Velez, Marie Materna, Daniel C Lin, Baptiste Milisavljevic, Fernanda Vianna, Lucy Bizien, Lazaro Lorenzo, Marc Lecuit, Jean-David Pommier, Sevgi Keles, Tayfun Ozcelik, Sigifredo Pedraza-Sanchez, Nicolas de Prost, Loubna El Zein, Hassan Hammoud, Lisa F P Ng, Rabih Halwani, Narjes Saheb Sharif-Askari, Yu Lung Lau, Anthony R Tam, Neha Singh, Sagar Bhattad, Yackov Berkun, Wasun Chantratita, Raúl Aguilar-López, Mohammad Shahrooei, Laurent Abel, Paul Bastard, Emmanuelle Jouanguy, Vivien Béziat, Peng Zhang, Charles M Rice, Aurélie Cobat, Shen-Ying Zhang, Paul J Hertzog, Jean-Laurent Casanova, Qian Zhang","doi":"10.1084/jem.20241413","DOIUrl":"10.1084/jem.20241413","url":null,"abstract":"<p><p>Autosomal recessive deficiency of the IFNAR1 or IFNAR2 chain of the human type I IFN receptor abolishes cellular responses to IFN-α, -β, and -ω, underlies severe viral diseases, and is globally very rare, except for IFNAR1 and IFNAR2 deficiency in Western Polynesia and the Arctic, respectively. We report 11 human IFNAR1 alleles, the products of which impair but do not abolish responses to IFN-α and -ω without affecting responses to IFN-β. Ten of these alleles are rare in all populations studied, but the remaining allele (P335del) is common in Southern China (minor allele frequency ≈2%). Cells heterozygous for these variants display a dominant phenotype in vitro with impaired responses to IFN-α and -ω, but not -β, and viral susceptibility. Negative dominance, rather than haploinsufficiency, accounts for this dominance. Patients heterozygous for these variants are prone to viral diseases, attesting to both the dominance of these variants clinically and the importance of IFN-α and -ω for protective immunity against some viruses.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":"222 2","pages":""},"PeriodicalIF":12.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11648951/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142828834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Spatiotemporal dynamics of fetal liver hematopoietic niches. 胎儿肝脏造血生态位的时空动态。
IF 12.6 1区 医学
Journal of Experimental Medicine Pub Date : 2025-02-03 Epub Date: 2025-01-07 DOI: 10.1084/jem.20240592
Márcia Mesquita Peixoto, Francisca Soares-da-Silva, Valentin Bonnet, Yanping Zhou, Gustave Ronteix, Rita Faria Santos, Marie-Pierre Mailhe, Gonçalo Nogueira, Xing Feng, João Pedro Pereira, Emanuele Azzoni, Giorgio Anselmi, Marella F T R de Bruijn, Archibald Perkins, Charles N Baroud, Perpétua Pinto-do-Ó, Ana Cumano
{"title":"Spatiotemporal dynamics of fetal liver hematopoietic niches.","authors":"Márcia Mesquita Peixoto, Francisca Soares-da-Silva, Valentin Bonnet, Yanping Zhou, Gustave Ronteix, Rita Faria Santos, Marie-Pierre Mailhe, Gonçalo Nogueira, Xing Feng, João Pedro Pereira, Emanuele Azzoni, Giorgio Anselmi, Marella F T R de Bruijn, Archibald Perkins, Charles N Baroud, Perpétua Pinto-do-Ó, Ana Cumano","doi":"10.1084/jem.20240592","DOIUrl":"10.1084/jem.20240592","url":null,"abstract":"<p><p>Embryonic hematopoietic cells develop in the fetal liver (FL), surrounded by diverse non-hematopoietic stromal cells. However, the spatial organization and cytokine production patterns of the stroma during FL development remain poorly understood. Here, we characterized and mapped the hematopoietic and stromal cell populations at early (E12.5-14.5) FL stages, revealing that while hepatoblasts were the primary source of hematopoietic growth factors, other stromal cells-including mesenchymal, mesothelial, and endothelial cells-also contributed to this signaling network. Using a dedicated image analysis pipeline, we quantified cell distances to tissue structures and defined neighbor relationships, uncovering that different hematopoietic progenitors exhibit distinct preferences for neighboring stromal cells and show developmental changes in spatial distribution. Notably, our data suggest that the sub-mesothelium region plays a prominent role in early fetal hematopoiesis. This approach offers a valuable tool for studying complex cellular interactions in biological systems, providing new insights into hematopoietic niche organization during development.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":"222 2","pages":""},"PeriodicalIF":12.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11706214/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142949849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Mutations disrupting the kinase domain of IKKα lead to immunodeficiency and immune dysregulation in humans. 破坏IKKα激酶结构域的突变导致人类免疫缺陷和免疫失调。
IF 12.6 1区 医学
Journal of Experimental Medicine Pub Date : 2025-02-03 Epub Date: 2025-01-15 DOI: 10.1084/jem.20240843
Quentin Riller, Boris Sorin, Charline Courteille, Duong Ho-Nhat, Tom Le Voyer, Jean-Christophe Debray, Marie-Claude Stolzenberg, Muriel Schmutz, Olivier Pellé, Thomas Becquard, María Rodrigo Riestra, Laureline Berteloot, Mélanie Migaud, Laure Delage, Marie Jeanpierre, Charlotte Boussard, Camille Brunaud, Aude Magérus, Charles Bretot, Victor Michel, Camille Roux, Capucine Picard, Cécile Masson, Christine Bole-Feysot, Nicolas Cagnard, Aurélien Corneau, Isabelle Meyts, Véronique Baud, Jean-Laurent Casanova, Alain Fischer, Emmanuel Dejardin, Anne Puel, Cécile Boulanger, Bénédicte Neven, Frédéric Rieux-Laucat
{"title":"Mutations disrupting the kinase domain of IKKα lead to immunodeficiency and immune dysregulation in humans.","authors":"Quentin Riller, Boris Sorin, Charline Courteille, Duong Ho-Nhat, Tom Le Voyer, Jean-Christophe Debray, Marie-Claude Stolzenberg, Muriel Schmutz, Olivier Pellé, Thomas Becquard, María Rodrigo Riestra, Laureline Berteloot, Mélanie Migaud, Laure Delage, Marie Jeanpierre, Charlotte Boussard, Camille Brunaud, Aude Magérus, Charles Bretot, Victor Michel, Camille Roux, Capucine Picard, Cécile Masson, Christine Bole-Feysot, Nicolas Cagnard, Aurélien Corneau, Isabelle Meyts, Véronique Baud, Jean-Laurent Casanova, Alain Fischer, Emmanuel Dejardin, Anne Puel, Cécile Boulanger, Bénédicte Neven, Frédéric Rieux-Laucat","doi":"10.1084/jem.20240843","DOIUrl":"10.1084/jem.20240843","url":null,"abstract":"<p><p>IKKα, encoded by CHUK, is crucial in the non-canonical NF-κB pathway and part of the IKK complex activating the canonical pathway alongside IKKβ. The absence of IKKα causes fetal encasement syndrome in humans, fatal in utero, while an impaired IKKα-NIK interaction was reported in a single patient and causes combined immunodeficiency. Here, we describe compound heterozygous variants in the kinase domain of IKKα in a female patient with hypogammaglobulinemia, recurrent lung infections, and Hay-Wells syndrome-like features. We showed that both variants were loss-of-function. Non-canonical NF-κB activation was profoundly diminished in stromal and immune cells while the canonical pathway was unexpectedly partially impaired. Reintroducing wt CHUK restored non-canonical NF-κB activation. The patient had neutralizing autoantibodies against type I IFN, akin to non-canonical NF-κB pathway deficiencies. Thus, this is the first case of biallelic CHUK mutations disrupting IKKα kinase function, broadening non-canonical NF-κB defect understanding, and suggesting IKKα's role in canonical NF-κB target gene expression in humans.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":"222 2","pages":""},"PeriodicalIF":12.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11734625/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142983687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Cindy Ma: Science is often not black and white, and the answer usually lies in the grey. 马辛蒂:科学往往不是非黑即白的,答案往往在灰色地带。
IF 12.6 1区 医学
Journal of Experimental Medicine Pub Date : 2025-02-03 Epub Date: 2024-12-05 DOI: 10.1084/jem.20242177
Montserrat Cols
{"title":"Cindy Ma: Science is often not black and white, and the answer usually lies in the grey.","authors":"Montserrat Cols","doi":"10.1084/jem.20242177","DOIUrl":"10.1084/jem.20242177","url":null,"abstract":"<p><p>Professor Cindy Ma heads the Human Immune Disorders Laboratory at the Garvan Institute of Medical Research. She is a member of the Garvan Faculty, holds a conjoint appointment with UNSW Sydney (School of Clinical Medicine, Faculty of Medicine and Health), and is an NHMRC of Australia Investigator Grant Fellow (L1). Her research interests lie in the study of human diseases of the immune system such as primary immunodeficiencies due to inborn errors of immunity (IEI), resulting from disease-causing monogenic germline variants. Another area of research her laboratory is perusing is the pathways that cause severe allergies and atopic diseases such as atopic dermatitis and food anaphylaxis.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":"222 2","pages":""},"PeriodicalIF":12.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11619774/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142785913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
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