Pub Date : 2024-12-02Epub Date: 2024-09-19DOI: 10.1084/jem.20240103
Martijn J Schuijs, Claudia M Brenis Gomez, Fabian Bick, Justine Van Moorleghem, Manon Vanheerswynghels, Geert van Loo, Rudi Beyaert, David Voehringer, Richard M Locksley, Hamida Hammad, Bart N Lambrecht
Asthma is characterized by lung eosinophilia, remodeling, and mucus plugging, controlled by adaptive Th2 effector cells secreting IL-4, IL-5, and IL-13. Inhaled house dust mite (HDM) causes the release of barrier epithelial cytokines that activate various innate immune cells like DCs and basophils that can promote Th2 adaptive immunity directly or indirectly. Here, we show that basophils play a crucial role in the development of type 2 immunity and eosinophilic inflammation, mucus production, and bronchial hyperreactivity in response to HDM inhalation in C57Bl/6 mice. Interestingly, conditional depletion of basophils during sensitization did not reduce Th2 priming or asthma inception, whereas depletion during allergen challenge did. During the challenge of sensitized mice, basophil-intrinsic IL-33/ST2 signaling, and not FcεRI engagement, promoted basophil IL-4 production and subsequent Th2 cell recruitment to the lungs via vascular integrin expression. Basophil-intrinsic loss of the ubiquitin modifying molecule Tnfaip3, involved in dampening IL-33 signaling, enhanced key asthma features. Thus, IL-33-activated basophils are gatekeepers that boost allergic airway inflammation by controlling Th2 tissue entry.
{"title":"Interleukin-33-activated basophils promote asthma by regulating Th2 cell entry into lung tissue.","authors":"Martijn J Schuijs, Claudia M Brenis Gomez, Fabian Bick, Justine Van Moorleghem, Manon Vanheerswynghels, Geert van Loo, Rudi Beyaert, David Voehringer, Richard M Locksley, Hamida Hammad, Bart N Lambrecht","doi":"10.1084/jem.20240103","DOIUrl":"10.1084/jem.20240103","url":null,"abstract":"<p><p>Asthma is characterized by lung eosinophilia, remodeling, and mucus plugging, controlled by adaptive Th2 effector cells secreting IL-4, IL-5, and IL-13. Inhaled house dust mite (HDM) causes the release of barrier epithelial cytokines that activate various innate immune cells like DCs and basophils that can promote Th2 adaptive immunity directly or indirectly. Here, we show that basophils play a crucial role in the development of type 2 immunity and eosinophilic inflammation, mucus production, and bronchial hyperreactivity in response to HDM inhalation in C57Bl/6 mice. Interestingly, conditional depletion of basophils during sensitization did not reduce Th2 priming or asthma inception, whereas depletion during allergen challenge did. During the challenge of sensitized mice, basophil-intrinsic IL-33/ST2 signaling, and not FcεRI engagement, promoted basophil IL-4 production and subsequent Th2 cell recruitment to the lungs via vascular integrin expression. Basophil-intrinsic loss of the ubiquitin modifying molecule Tnfaip3, involved in dampening IL-33 signaling, enhanced key asthma features. Thus, IL-33-activated basophils are gatekeepers that boost allergic airway inflammation by controlling Th2 tissue entry.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":null,"pages":null},"PeriodicalIF":12.6,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11413418/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142288979","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}
Pub Date : 2024-11-04Epub Date: 2024-09-19DOI: 10.1084/jem.20240435
Zhen Chen, Karin A Vallega, Dongsheng Wang, Zihan Quan, Songqing Fan, Qiming Wang, Ticiana Leal, Suresh S Ramalingam, Shi-Yong Sun
The inevitable acquired resistance to osimertinib (AZD9291), an FDA-approved third-generation EGFR tyrosine kinase inhibitor (EGFR-TKI) for the treatment of patients with advanced non-small cell lung cancer (NSCLC) harboring EGFR activating or T790M resistant mutations, limits its long-term clinical benefit. Telomere maintenance via telomerase reactivation is linked to uncontrolled cell growth and is a cancer hallmark and an attractive cancer therapeutic target. Our effort toward understanding the action mechanisms, including resistance mechanisms, of osimertinib has led to the identification of a novel and critical role in maintaining c-Myc-dependent downregulation of hTERT, a catalytic subunit of telomerase, and subsequent inhibition of telomerase/telomere and induction of telomere dysfunction in mediating therapeutic efficacy of osimertinib. Consequently, osimertinib combined with the telomere inhibitor, 6-Thio-dG, which is currently tested in a phase II trial, effectively inhibited the growth of osimertinib-resistant tumors, regressed EGFRm NSCLC patient-derived xenografts, and delayed the emergence of acquired resistance to osimertinib, warranting clinical validation of this strategy to manage osimertinib acquired resistance.
{"title":"Inhibition of hTERT/telomerase/telomere mediates therapeutic efficacy of osimertinib in EGFR mutant lung cancer.","authors":"Zhen Chen, Karin A Vallega, Dongsheng Wang, Zihan Quan, Songqing Fan, Qiming Wang, Ticiana Leal, Suresh S Ramalingam, Shi-Yong Sun","doi":"10.1084/jem.20240435","DOIUrl":"10.1084/jem.20240435","url":null,"abstract":"<p><p>The inevitable acquired resistance to osimertinib (AZD9291), an FDA-approved third-generation EGFR tyrosine kinase inhibitor (EGFR-TKI) for the treatment of patients with advanced non-small cell lung cancer (NSCLC) harboring EGFR activating or T790M resistant mutations, limits its long-term clinical benefit. Telomere maintenance via telomerase reactivation is linked to uncontrolled cell growth and is a cancer hallmark and an attractive cancer therapeutic target. Our effort toward understanding the action mechanisms, including resistance mechanisms, of osimertinib has led to the identification of a novel and critical role in maintaining c-Myc-dependent downregulation of hTERT, a catalytic subunit of telomerase, and subsequent inhibition of telomerase/telomere and induction of telomere dysfunction in mediating therapeutic efficacy of osimertinib. Consequently, osimertinib combined with the telomere inhibitor, 6-Thio-dG, which is currently tested in a phase II trial, effectively inhibited the growth of osimertinib-resistant tumors, regressed EGFRm NSCLC patient-derived xenografts, and delayed the emergence of acquired resistance to osimertinib, warranting clinical validation of this strategy to manage osimertinib acquired resistance.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":null,"pages":null},"PeriodicalIF":12.6,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11413468/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142288976","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}
Pub Date : 2024-11-04Epub Date: 2024-09-19DOI: 10.1084/jem.20240433
Liat Stoler-Barak, Dominik Schmiedel, Avital Sarusi-Portuguez, Adi Rogel, Ronnie Blecher-Gonen, Zhana Haimon, Tomas Stopka, Ziv Shulman
The establishment of long-lasting immunity against pathogens is facilitated by the germinal center (GC) reaction, during which B cells increase their antibody affinity and differentiate into antibody-secreting cells (ASC) and memory cells. These events involve modifications in chromatin packaging that orchestrate the profound restructuring of gene expression networks that determine cell fate. While several chromatin remodelers were implicated in lymphocyte functions, less is known about SMARCA5. Here, using ribosomal pull-down for analyzing translated genes in GC B cells, coupled with functional experiments in mice, we identified SMARCA5 as a key chromatin remodeler in B cells. While the naive B cell compartment remained unaffected following conditional depletion of Smarca5, effective proliferation during B cell activation, immunoglobulin class switching, and as a result GC formation and ASC differentiation were impaired. Single-cell multiomic sequencing analyses revealed that SMARCA5 is crucial for facilitating the transcriptional modifications and genomic accessibility of genes that support B cell activation and differentiation. These findings offer novel insights into the functions of SMARCA5, which can be targeted in various human pathologies.
生殖中心(GC)反应有助于建立针对病原体的持久免疫力,在这一过程中,B 细胞会增加其抗体亲和力,并分化为抗体分泌细胞(ASC)和记忆细胞。这些事件涉及染色质包装的改变,而染色质包装的改变会协调决定细胞命运的基因表达网络的深刻重组。虽然有几种染色质重塑因子与淋巴细胞功能有关,但对 SMARCA5 的了解较少。在这里,我们利用核糖体牵引分析 GC B 细胞中的翻译基因,并结合小鼠的功能实验,发现 SMARCA5 是 B 细胞中的关键染色质重塑因子。虽然条件性缺失 Smarca5 后,幼稚 B 细胞区系不受影响,但 B 细胞活化过程中的有效增殖、免疫球蛋白类别转换以及 GC 形成和 ASC 分化都因此受损。单细胞多组测序分析表明,SMARCA5 对于促进支持 B 细胞活化和分化的基因的转录修饰和基因组可及性至关重要。这些发现为了解SMARCA5的功能提供了新的视角,SMARCA5可作为各种人类病症的靶标。
{"title":"SMARCA5-mediated chromatin remodeling is required for germinal center formation.","authors":"Liat Stoler-Barak, Dominik Schmiedel, Avital Sarusi-Portuguez, Adi Rogel, Ronnie Blecher-Gonen, Zhana Haimon, Tomas Stopka, Ziv Shulman","doi":"10.1084/jem.20240433","DOIUrl":"10.1084/jem.20240433","url":null,"abstract":"<p><p>The establishment of long-lasting immunity against pathogens is facilitated by the germinal center (GC) reaction, during which B cells increase their antibody affinity and differentiate into antibody-secreting cells (ASC) and memory cells. These events involve modifications in chromatin packaging that orchestrate the profound restructuring of gene expression networks that determine cell fate. While several chromatin remodelers were implicated in lymphocyte functions, less is known about SMARCA5. Here, using ribosomal pull-down for analyzing translated genes in GC B cells, coupled with functional experiments in mice, we identified SMARCA5 as a key chromatin remodeler in B cells. While the naive B cell compartment remained unaffected following conditional depletion of Smarca5, effective proliferation during B cell activation, immunoglobulin class switching, and as a result GC formation and ASC differentiation were impaired. Single-cell multiomic sequencing analyses revealed that SMARCA5 is crucial for facilitating the transcriptional modifications and genomic accessibility of genes that support B cell activation and differentiation. These findings offer novel insights into the functions of SMARCA5, which can be targeted in various human pathologies.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":null,"pages":null},"PeriodicalIF":12.6,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11413417/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142288977","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}
Pub Date : 2024-11-04Epub Date: 2024-09-25DOI: 10.1084/jem.20231568
Maki Niihori, Joel James, Mathews V Varghese, Nolan McClain, Odunayo Susan Lawal, Rohit C Philip, Brenda K Baggett, Dmitry A Goncharov, Vinicio de Jesus Perez, Elena A Goncharova, Ruslan Rafikov, Olga Rafikova
Impaired pulmonary angiogenesis plays a pivotal role in the progression of pulmonary arterial hypertension (PAH) and patient mortality, yet the molecular mechanisms driving this process remain enigmatic. Our study uncovered a striking connection between mitochondrial dysfunction (MD), caused by a humanized mutation in the NFU1 gene, and severely disrupted pulmonary angiogenesis in adult lungs. Restoring the bioavailability of the NFU1 downstream target, lipoic acid (LA), alleviated MD and angiogenic deficiency and rescued the progressive PAH phenotype in the NFU1G206C model. Notably, significant NFU1 expression and signaling insufficiencies were also identified in idiopathic PAH (iPAH) patients' lungs, emphasizing this study's relevance beyond NFU1 mutation cases. The remarkable improvement in mitochondrial function of PAH patient-derived pulmonary artery endothelial cells (PAECs) following LA supplementation introduces LA as a potential therapeutic approach. In conclusion, this study unveils a novel role for MD in dysregulated pulmonary angiogenesis and PAH manifestation, emphasizing the need to correct MD in PAH patients with unrecognized NFU1/LA deficiency.
{"title":"Mitochondria as a primary determinant of angiogenic modality in pulmonary arterial hypertension.","authors":"Maki Niihori, Joel James, Mathews V Varghese, Nolan McClain, Odunayo Susan Lawal, Rohit C Philip, Brenda K Baggett, Dmitry A Goncharov, Vinicio de Jesus Perez, Elena A Goncharova, Ruslan Rafikov, Olga Rafikova","doi":"10.1084/jem.20231568","DOIUrl":"https://doi.org/10.1084/jem.20231568","url":null,"abstract":"<p><p>Impaired pulmonary angiogenesis plays a pivotal role in the progression of pulmonary arterial hypertension (PAH) and patient mortality, yet the molecular mechanisms driving this process remain enigmatic. Our study uncovered a striking connection between mitochondrial dysfunction (MD), caused by a humanized mutation in the NFU1 gene, and severely disrupted pulmonary angiogenesis in adult lungs. Restoring the bioavailability of the NFU1 downstream target, lipoic acid (LA), alleviated MD and angiogenic deficiency and rescued the progressive PAH phenotype in the NFU1G206C model. Notably, significant NFU1 expression and signaling insufficiencies were also identified in idiopathic PAH (iPAH) patients' lungs, emphasizing this study's relevance beyond NFU1 mutation cases. The remarkable improvement in mitochondrial function of PAH patient-derived pulmonary artery endothelial cells (PAECs) following LA supplementation introduces LA as a potential therapeutic approach. In conclusion, this study unveils a novel role for MD in dysregulated pulmonary angiogenesis and PAH manifestation, emphasizing the need to correct MD in PAH patients with unrecognized NFU1/LA deficiency.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":null,"pages":null},"PeriodicalIF":12.6,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142347958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-04Epub Date: 2024-09-19DOI: 10.1084/jem.20240806
Praveen Krishna Veerasubramanian, Thomas A Wynn, Jie Quan, Fridrik J Karlsson
Dysregulated signaling from TNF and TNFR proteins is implicated in several immune-mediated inflammatory diseases (IMIDs). This review centers around seven IMIDs (rheumatoid arthritis, systemic lupus erythematosus, Crohn's disease, ulcerative colitis, psoriasis, atopic dermatitis, and asthma) with substantial unmet medical needs and sheds light on the signaling mechanisms, disease relevance, and evolving drug development activities for five TNF/TNFR signaling axes that garner substantial drug development interest in these focus conditions. The review also explores the current landscape of therapeutics, emphasizing the limitations of the approved biologics, and the opportunities presented by small-molecule inhibitors and combination antagonists of TNF/TNFR signaling.
{"title":"Targeting TNF/TNFR superfamilies in immune-mediated inflammatory diseases.","authors":"Praveen Krishna Veerasubramanian, Thomas A Wynn, Jie Quan, Fridrik J Karlsson","doi":"10.1084/jem.20240806","DOIUrl":"10.1084/jem.20240806","url":null,"abstract":"<p><p>Dysregulated signaling from TNF and TNFR proteins is implicated in several immune-mediated inflammatory diseases (IMIDs). This review centers around seven IMIDs (rheumatoid arthritis, systemic lupus erythematosus, Crohn's disease, ulcerative colitis, psoriasis, atopic dermatitis, and asthma) with substantial unmet medical needs and sheds light on the signaling mechanisms, disease relevance, and evolving drug development activities for five TNF/TNFR signaling axes that garner substantial drug development interest in these focus conditions. The review also explores the current landscape of therapeutics, emphasizing the limitations of the approved biologics, and the opportunities presented by small-molecule inhibitors and combination antagonists of TNF/TNFR signaling.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":null,"pages":null},"PeriodicalIF":12.6,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11413425/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142288978","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}
Dysregulation of the flow of information from genomic DNA to RNA to protein occurs within all cancer types. In this review, we described the current state of understanding of how RNA processing is dysregulated in cancer with a focus on mutations in the RNA splicing factor machinery that are highly prevalent in hematologic malignancies. We discuss the downstream effects of these mutations highlighting both individual genes as well as common pathways that they perturb. We highlight examples of how alterations in RNA processing have been harnessed for therapeutic intent as well as to promote the selective toxicity of cancer cells.
{"title":"Aberrant pre-mRNA processing in cancer.","authors":"Jeetayu Biswas, Leora Boussi, Eytan Stein, Omar Abdel-Wahab","doi":"10.1084/jem.20230891","DOIUrl":"https://doi.org/10.1084/jem.20230891","url":null,"abstract":"<p><p>Dysregulation of the flow of information from genomic DNA to RNA to protein occurs within all cancer types. In this review, we described the current state of understanding of how RNA processing is dysregulated in cancer with a focus on mutations in the RNA splicing factor machinery that are highly prevalent in hematologic malignancies. We discuss the downstream effects of these mutations highlighting both individual genes as well as common pathways that they perturb. We highlight examples of how alterations in RNA processing have been harnessed for therapeutic intent as well as to promote the selective toxicity of cancer cells.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":null,"pages":null},"PeriodicalIF":12.6,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142347956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The eye is closely connected to the brain, providing a unique window to detect pathological changes in the brain. In this study, we discovered β-amyloid (Aβ) deposits along the ocular glymphatic system in patients with Alzheimer's disease (AD) and 5×FAD transgenic mouse model. Interestingly, Aβ from the brain can flow into the eyes along the optic nerve through cerebrospinal fluid (CSF), causing retinal degeneration. Aβ is mainly observed in the optic nerve sheath, the neural axon, and the perivascular space, which might represent the critical steps of the Aβ transportation from the brain to the eyes. Aquaporin-4 facilitates the influx of Aβ in brain-eye transport and out-excretion of the retina, and its absence or loss of polarity exacerbates brain-derived Aβ induced damage and visual impairment. These results revealed brain-to-eye Aβ transport as a major contributor to AD retinopathy, highlighting a new therapeutic avenue in ocular and neurodegenerative disease.
{"title":"Transport of β-amyloid from brain to eye causes retinal degeneration in Alzheimer's disease.","authors":"Qiuchen Cao, Shige Yang, Xiaowei Wang, Huaiqing Sun, Weijie Chen, Yuliang Wang, Junying Gao, Yanchi Wu, Qiuhua Yang, Xue Chen, Songtao Yuan, Ming Xiao, Maiken Nedergaard, Yuqing Huo, Qinghuai Liu","doi":"10.1084/jem.20240386","DOIUrl":"10.1084/jem.20240386","url":null,"abstract":"<p><p>The eye is closely connected to the brain, providing a unique window to detect pathological changes in the brain. In this study, we discovered β-amyloid (Aβ) deposits along the ocular glymphatic system in patients with Alzheimer's disease (AD) and 5×FAD transgenic mouse model. Interestingly, Aβ from the brain can flow into the eyes along the optic nerve through cerebrospinal fluid (CSF), causing retinal degeneration. Aβ is mainly observed in the optic nerve sheath, the neural axon, and the perivascular space, which might represent the critical steps of the Aβ transportation from the brain to the eyes. Aquaporin-4 facilitates the influx of Aβ in brain-eye transport and out-excretion of the retina, and its absence or loss of polarity exacerbates brain-derived Aβ induced damage and visual impairment. These results revealed brain-to-eye Aβ transport as a major contributor to AD retinopathy, highlighting a new therapeutic avenue in ocular and neurodegenerative disease.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":null,"pages":null},"PeriodicalIF":12.6,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142307870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-04Epub Date: 2024-10-01DOI: 10.1084/jem.20231152
Jérémie Rosain, Tom Le Voyer, Xian Liu, Adrian Gervais, Laura Polivka, Axel Cederholm, Laureline Berteloot, Audrey V Parent, Alessandra Pescatore, Ezia Spinosa, Snezana Minic, Ana Elisa Kiszewski, Miyuki Tsumura, Chloé Thibault, Maria Esnaola Azcoiti, Jelena Martinovic, Quentin Philippot, Taushif Khan, Astrid Marchal, Bénédicte Charmeteau-De Muylder, Lucy Bizien, Caroline Deswarte, Lillia Hadjem, Marie-Odile Fauvarque, Karim Dorgham, Daniel Eriksson, Emilia Liana Falcone, Mathilde Puel, Sinem Ünal, Amyrath Geraldo, Corentin Le Floc'h, Hailun Li, Sylvie Rheault, Christine Muti, Claire Bobrie-Moyrand, Anne Welfringer-Morin, Ramsay L Fuleihan, Romain Lévy, Marie Roelens, Liwei Gao, Marie Materna, Silvia Pellegrini, Lorenzo Piemonti, Emilie Catherinot, Jean-Christophe Goffard, Arnaud Fekkar, Aissata Sacko-Sow, Camille Soudée, Soraya Boucherit, Anna-Lena Neehus, Cristina Has, Stefanie Hübner, Géraldine Blanchard-Rohner, Blanca Amador-Borrero, Takanori Utsumi, Maki Taniguchi, Hiroo Tani, Kazushi Izawa, Takahiro Yasumi, Sotaro Kanai, Mélanie Migaud, Mélodie Aubart, Nathalie Lambert, Guy Gorochov, Capucine Picard, Claire Soudais, Anne-Sophie L'Honneur, Flore Rozenberg, Joshua D Milner, Shen-Ying Zhang, Pierre Vabres, Dusan Trpinac, Nico Marr, Nathalie Boddaert, Isabelle Desguerre, Manolis Pasparakis, Corey N Miller, Cláudia S Poziomczyk, Laurent Abel, Satoshi Okada, Emmanuelle Jouanguy, Rémi Cheynier, Qian Zhang, Aurélie Cobat, Vivien Béziat, Bertrand Boisson, Julie Steffann, Francesca Fusco, Matilde Valeria Ursini, Smail Hadj-Rabia, Christine Bodemer, Jacinta Bustamante, Hervé Luche, Anne Puel, Gilles Courtois, Paul Bastard, Nils Landegren, Mark S Anderson, Jean-Laurent Casanova
Human inborn errors of thymic T cell tolerance underlie the production of autoantibodies (auto-Abs) neutralizing type I IFNs, which predispose to severe viral diseases. We analyze 131 female patients with X-linked dominant incontinentia pigmenti (IP), heterozygous for loss-of-function (LOF) NEMO variants, from 99 kindreds in 10 countries. Forty-seven of these patients (36%) have auto-Abs neutralizing IFN-α and/or IFN-ω, a proportion 23 times higher than that for age-matched female controls. This proportion remains stable from the age of 6 years onward. On imaging, female patients with IP have a small, abnormally structured thymus. Auto-Abs against type I IFNs confer a predisposition to life-threatening viral diseases. By contrast, patients with IP lacking auto-Abs against type I IFNs are at no particular risk of viral disease. These results suggest that IP accelerates thymic involution, thereby underlying the production of auto-Abs neutralizing type I IFNs in at least a third of female patients with IP, predisposing them to life-threatening viral diseases.
人类先天性胸腺 T 细胞耐受性错误是产生中和 I 型 IFN 的自身抗体(auto-Abs)的基础,而自身抗体容易导致严重的病毒性疾病。我们分析了来自 10 个国家 99 个血统的 131 名 X 连锁显性猪尿失禁(IP)女性患者,她们都是功能缺失(LOF)NEMO 变异的杂合子。其中47名患者(36%)的自身抗体能中和IFN-α和/或IFN-ω,这一比例是年龄匹配的女性对照组的23倍。从 6 岁开始,这一比例保持稳定。在影像学上,女性 IP 患者的胸腺较小且结构异常。针对 I 型 IFNs 的自身抗体会导致易患危及生命的病毒性疾病。相比之下,缺乏抗I型IFNs自身抗体的IP患者患病毒性疾病的风险并不特别高。这些结果表明,子宫内膜异位症会加速胸腺萎缩,从而导致至少三分之一的女性子宫内膜异位症患者产生中和 I 型 IFNs 的自身抗体,使她们易患危及生命的病毒性疾病。
{"title":"Incontinentia pigmenti underlies thymic dysplasia, autoantibodies to type I IFNs, and viral diseases.","authors":"Jérémie Rosain, Tom Le Voyer, Xian Liu, Adrian Gervais, Laura Polivka, Axel Cederholm, Laureline Berteloot, Audrey V Parent, Alessandra Pescatore, Ezia Spinosa, Snezana Minic, Ana Elisa Kiszewski, Miyuki Tsumura, Chloé Thibault, Maria Esnaola Azcoiti, Jelena Martinovic, Quentin Philippot, Taushif Khan, Astrid Marchal, Bénédicte Charmeteau-De Muylder, Lucy Bizien, Caroline Deswarte, Lillia Hadjem, Marie-Odile Fauvarque, Karim Dorgham, Daniel Eriksson, Emilia Liana Falcone, Mathilde Puel, Sinem Ünal, Amyrath Geraldo, Corentin Le Floc'h, Hailun Li, Sylvie Rheault, Christine Muti, Claire Bobrie-Moyrand, Anne Welfringer-Morin, Ramsay L Fuleihan, Romain Lévy, Marie Roelens, Liwei Gao, Marie Materna, Silvia Pellegrini, Lorenzo Piemonti, Emilie Catherinot, Jean-Christophe Goffard, Arnaud Fekkar, Aissata Sacko-Sow, Camille Soudée, Soraya Boucherit, Anna-Lena Neehus, Cristina Has, Stefanie Hübner, Géraldine Blanchard-Rohner, Blanca Amador-Borrero, Takanori Utsumi, Maki Taniguchi, Hiroo Tani, Kazushi Izawa, Takahiro Yasumi, Sotaro Kanai, Mélanie Migaud, Mélodie Aubart, Nathalie Lambert, Guy Gorochov, Capucine Picard, Claire Soudais, Anne-Sophie L'Honneur, Flore Rozenberg, Joshua D Milner, Shen-Ying Zhang, Pierre Vabres, Dusan Trpinac, Nico Marr, Nathalie Boddaert, Isabelle Desguerre, Manolis Pasparakis, Corey N Miller, Cláudia S Poziomczyk, Laurent Abel, Satoshi Okada, Emmanuelle Jouanguy, Rémi Cheynier, Qian Zhang, Aurélie Cobat, Vivien Béziat, Bertrand Boisson, Julie Steffann, Francesca Fusco, Matilde Valeria Ursini, Smail Hadj-Rabia, Christine Bodemer, Jacinta Bustamante, Hervé Luche, Anne Puel, Gilles Courtois, Paul Bastard, Nils Landegren, Mark S Anderson, Jean-Laurent Casanova","doi":"10.1084/jem.20231152","DOIUrl":"https://doi.org/10.1084/jem.20231152","url":null,"abstract":"<p><p>Human inborn errors of thymic T cell tolerance underlie the production of autoantibodies (auto-Abs) neutralizing type I IFNs, which predispose to severe viral diseases. We analyze 131 female patients with X-linked dominant incontinentia pigmenti (IP), heterozygous for loss-of-function (LOF) NEMO variants, from 99 kindreds in 10 countries. Forty-seven of these patients (36%) have auto-Abs neutralizing IFN-α and/or IFN-ω, a proportion 23 times higher than that for age-matched female controls. This proportion remains stable from the age of 6 years onward. On imaging, female patients with IP have a small, abnormally structured thymus. Auto-Abs against type I IFNs confer a predisposition to life-threatening viral diseases. By contrast, patients with IP lacking auto-Abs against type I IFNs are at no particular risk of viral disease. These results suggest that IP accelerates thymic involution, thereby underlying the production of auto-Abs neutralizing type I IFNs in at least a third of female patients with IP, predisposing them to life-threatening viral diseases.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":null,"pages":null},"PeriodicalIF":12.6,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142347957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-07Epub Date: 2024-08-27DOI: 10.1084/jem.20240152
Apostolia M Tsimberidou, Farah A Alayli, Kwame Okrah, Alexandra Drakaki, Danny N Khalil, Shivaani Kummar, Saad A Khan, F Stephen Hodi, David Y Oh, Christopher R Cabanski, Shikha Gautam, Stefanie L Meier, Meelad Amouzgar, Shannon M Pfeiffer, Robin Kageyama, EnJun Yang, Marko Spasic, Michael T Tetzlaff, Wai Chin Foo, Travis J Hollmann, Yanyun Li, Matthew Adamow, Phillip Wong, Jonni S Moore, Sharlene Velichko, Richard O Chen, Dinesh Kumar, Samantha Bucktrout, Ramy Ibrahim, Ute Dugan, Lisa Salvador, Vanessa M Hubbard-Lucey, Jill O'Donnell-Tormey, Sandra Santulli-Marotto, Lisa H Butterfield, Diane M Da Silva, Justin Fairchild, Theresa M LaVallee, Lacey J Padrón, Padmanee Sharma
Identifying pan-tumor biomarkers that predict responses to immune checkpoint inhibitors (ICI) is critically needed. In the AMADEUS clinical trial (NCT03651271), patients with various advanced solid tumors were assessed for changes in intratumoral CD8 percentages and their response to ICI. Patients were grouped based on tumoral CD8 levels: those with CD8 <15% (CD8-low) received nivolumab (anti-PD-1) plus ipilimumab (anti-CTLA4) and those with CD8 ≥15% (CD8-high) received nivolumab monotherapy. 79 patients (72 CD8-low and 7 CD8-high) were treated. The disease control rate was 25.0% (18/72; 95% CI: 15.8-35.2) in CD8-low and 14.3% (1/7; 95% CI: 1.1-43.8) in CD8-high. Tumors from 35.9% (14/39; 95% CI: 21.8-51.4) of patients converted from CD8 <15% pretreatment to ≥15% after treatment. Multiomic analyses showed that CD8-low responders had an inflammatory tumor microenvironment pretreatment, enhanced by an influx of CD8 T cells, CD4 T cells, B cells, and macrophages upon treatment. These findings reveal crucial pan-cancer immunological features for ICI response in patients with metastatic disease.
{"title":"Immunologic signatures of response and resistance to nivolumab with ipilimumab in advanced metastatic cancer.","authors":"Apostolia M Tsimberidou, Farah A Alayli, Kwame Okrah, Alexandra Drakaki, Danny N Khalil, Shivaani Kummar, Saad A Khan, F Stephen Hodi, David Y Oh, Christopher R Cabanski, Shikha Gautam, Stefanie L Meier, Meelad Amouzgar, Shannon M Pfeiffer, Robin Kageyama, EnJun Yang, Marko Spasic, Michael T Tetzlaff, Wai Chin Foo, Travis J Hollmann, Yanyun Li, Matthew Adamow, Phillip Wong, Jonni S Moore, Sharlene Velichko, Richard O Chen, Dinesh Kumar, Samantha Bucktrout, Ramy Ibrahim, Ute Dugan, Lisa Salvador, Vanessa M Hubbard-Lucey, Jill O'Donnell-Tormey, Sandra Santulli-Marotto, Lisa H Butterfield, Diane M Da Silva, Justin Fairchild, Theresa M LaVallee, Lacey J Padrón, Padmanee Sharma","doi":"10.1084/jem.20240152","DOIUrl":"10.1084/jem.20240152","url":null,"abstract":"<p><p>Identifying pan-tumor biomarkers that predict responses to immune checkpoint inhibitors (ICI) is critically needed. In the AMADEUS clinical trial (NCT03651271), patients with various advanced solid tumors were assessed for changes in intratumoral CD8 percentages and their response to ICI. Patients were grouped based on tumoral CD8 levels: those with CD8 <15% (CD8-low) received nivolumab (anti-PD-1) plus ipilimumab (anti-CTLA4) and those with CD8 ≥15% (CD8-high) received nivolumab monotherapy. 79 patients (72 CD8-low and 7 CD8-high) were treated. The disease control rate was 25.0% (18/72; 95% CI: 15.8-35.2) in CD8-low and 14.3% (1/7; 95% CI: 1.1-43.8) in CD8-high. Tumors from 35.9% (14/39; 95% CI: 21.8-51.4) of patients converted from CD8 <15% pretreatment to ≥15% after treatment. Multiomic analyses showed that CD8-low responders had an inflammatory tumor microenvironment pretreatment, enhanced by an influx of CD8 T cells, CD4 T cells, B cells, and macrophages upon treatment. These findings reveal crucial pan-cancer immunological features for ICI response in patients with metastatic disease.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":null,"pages":null},"PeriodicalIF":12.6,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11349049/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142080511","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}