American Journal of Respiratory Cell and Molecular Biology最新文献

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COPD Airway Epithelial Cell-derived Extracellular Vesicles Spread Cellular Senescence via MicroRNA-34a. COPD气道上皮细胞来源的细胞外囊泡通过MicroRNA-34a传播细胞衰老。
IF 5.9 2区 医学
American Journal of Respiratory Cell and Molecular Biology Pub Date : 2025-01-21 DOI: 10.1165/rcmb.2024-0183OC
Justine V Devulder, Jonathan R Baker, Peter S Fenwick, Lina Odqvist, Louise E Donnelly, Peter J Barnes
{"title":"COPD Airway Epithelial Cell-derived Extracellular Vesicles Spread Cellular Senescence via MicroRNA-34a.","authors":"Justine V Devulder, Jonathan R Baker, Peter S Fenwick, Lina Odqvist, Louise E Donnelly, Peter J Barnes","doi":"10.1165/rcmb.2024-0183OC","DOIUrl":"https://doi.org/10.1165/rcmb.2024-0183OC","url":null,"abstract":"<p><p>Chronic obstructive pulmonary disease (COPD) is associated with the acceleration of lung aging, and the accumulation of senescent cells in lung tissue. MicroRNA (miR)-34a induces senescence by suppressing the anti-aging molecule, sirtuin-1 (SIRT1). Senescent cells spread senescence to neighbouring and distant cells, favouring COPD progression and its comorbidities. Mechanisms for spreading senescence remain undetermined but may be mediated by the transfer of microRNAs in extracellular vesicles. We analysed the miRNA content of extracellular vesicles in COPD and explored their effect on cellular senescence of healthy cells. EVs were isolated from small airway epithelial cells (SAEC) from healthy donors or COPD patients. Recipient healthy SAEC were cultured with EVs and the expression of miR-34a and markers of cellular senescence, p21<sup>CIP1</sup> and SIRT1, were measured. We have shown that EVs from COPD cells induce senescence in healthy recipient cells via the selective transfer of miR-34a. COPD SAEC produce increased numbers of EVs enriched with miR-34a. EVs are taken up by healthy cells, resulting in reduced expression of the anti-aging molecule sirtuin-1 and increased expression of markers of senescence, like p21<sup>CIP1</sup> and positive staining for senescence-associated β-galactosidase, which were blocked by a specific miR-34a antagomir. Our findings provide evidence of the mechanism by which EVs spread cellular senescence in human primary cells via miR-34a, rather than via soluble mediators. EVs enriched with miR-34a may spread senescence locally, accounting for disease progression, but also provide a mechanism for distant spread to account for comorbidities and multimorbidity of the elderly.</p>","PeriodicalId":7655,"journal":{"name":"American Journal of Respiratory Cell and Molecular Biology","volume":" ","pages":""},"PeriodicalIF":5.9,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997833","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}
引用次数: 0
The Sound of Silence: Suppressing Cbx5 Decreases Fibrosis by Inhibiting Fibroblasts. 沉默之声:抑制Cbx5通过抑制成纤维细胞减少纤维化。
IF 5.9 2区 医学
American Journal of Respiratory Cell and Molecular Biology Pub Date : 2025-01-21 DOI: 10.1165/rcmb.2024-0618ED
Mauricio Rojas, Ana L Mora
{"title":"The Sound of Silence: Suppressing Cbx5 Decreases Fibrosis by Inhibiting Fibroblasts.","authors":"Mauricio Rojas, Ana L Mora","doi":"10.1165/rcmb.2024-0618ED","DOIUrl":"https://doi.org/10.1165/rcmb.2024-0618ED","url":null,"abstract":"","PeriodicalId":7655,"journal":{"name":"American Journal of Respiratory Cell and Molecular Biology","volume":" ","pages":""},"PeriodicalIF":5.9,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998373","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}
引用次数: 0
A Single Early Life Acetaminophen Exposure Causes Persistent Abnormalities in the Murine Lung. 早期一次对乙酰氨基酚暴露导致小鼠肺部持续异常。
IF 5.9 2区 医学
American Journal of Respiratory Cell and Molecular Biology Pub Date : 2025-01-21 DOI: 10.1165/rcmb.2024-0452OC
Maya R Grayck, Bradford J Smith, Alexander Sosa, Emma Golden, William C McCarthy, Mack Solar, Natarajan Balasubramaniyan, Lijun Zheng, Evgenia Dobrinskikh, Mercedes Rincon, David J McCulley, David J Orlicky, Clyde J Wright
{"title":"A Single Early Life Acetaminophen Exposure Causes Persistent Abnormalities in the Murine Lung.","authors":"Maya R Grayck, Bradford J Smith, Alexander Sosa, Emma Golden, William C McCarthy, Mack Solar, Natarajan Balasubramaniyan, Lijun Zheng, Evgenia Dobrinskikh, Mercedes Rincon, David J McCulley, David J Orlicky, Clyde J Wright","doi":"10.1165/rcmb.2024-0452OC","DOIUrl":"https://doi.org/10.1165/rcmb.2024-0452OC","url":null,"abstract":"<p><p>Whether early life acetaminophen (APAP) exposures injure the developing lung is controversial. We sought to correlate murine pulmonary developmental expression profiles of <i>Cyp2e1</i> to susceptibility to APAP exposure. P14 C57BL/6 mice were exposed to APAP (140 mg/kg x 1, IP) and assessed for evidence of a histologic, metabolic, functional, and/or transcriptional pulmonary response. Similar experiments were performed in P14 IL6<sup>-/-</sup> mice given the controversial role of IL6 in APAP-induced tissue injury. No evidence of hepatic injury was noted in APAP exposed P14 mice. In contrast, within 6 hours of exposure pulmonary tissue demonstrated histologic and functional evidence of injury and increased mitochondrial load by fluorescent lifetime imaging microscopy (FLIM). The pulmonary transcriptional response was marked by increased expression of <i>Cyp2e1</i>, Nrf2 targets, and pro-inflammatory genes. Specifically, APAP exposure increased pulmonary IL6 mRNA, protein and associated STAT3 signaling. In contrast, IL6<sup>-/-</sup> demonstrated attenuated STAT3 signaling and injury at 6 hours of exposure. At P28, functional and stereologic assessment of both WT and IL6<sup>-/-</sup> mice exposed to a single dose of APAP at P14 revealed persistent abnormalities consistent with lung enlargement and alveolar simplification. Developmentally regulated surges in pulmonary <i>Cyp2e1</i> expression correlate with sensitivity to APAP exposures that do not cause recognizable hepatic injury. A single exposure during this developmental window is enough to cause persistent functional and stereological abnormalities. These results highlight the need to further study the relationship between developmentally-regulated pulmonary <i>Cyp2e1</i> expression, APAP exposures and long-term pulmonary dysfunction.</p>","PeriodicalId":7655,"journal":{"name":"American Journal of Respiratory Cell and Molecular Biology","volume":" ","pages":""},"PeriodicalIF":5.9,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142997709","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}
引用次数: 0
Optimizing Neutrophil Recruitment to Tackle Bacterial Infections? 优化中性粒细胞招募以应对细菌感染?
IF 5.9 2区 医学
American Journal of Respiratory Cell and Molecular Biology Pub Date : 2025-01-21 DOI: 10.1165/rcmb.2024-0575ED
Rosemary Bayless, Yogesh Saini
{"title":"Optimizing Neutrophil Recruitment to Tackle Bacterial Infections?","authors":"Rosemary Bayless, Yogesh Saini","doi":"10.1165/rcmb.2024-0575ED","DOIUrl":"https://doi.org/10.1165/rcmb.2024-0575ED","url":null,"abstract":"","PeriodicalId":7655,"journal":{"name":"American Journal of Respiratory Cell and Molecular Biology","volume":" ","pages":""},"PeriodicalIF":5.9,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998358","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}
引用次数: 0
Novel Sarcoidosis Epitope Augments MHCII, CD80/CD86 Expression, Promotes B-Cell Differentiation and IgG Production. 新型结节病表位增强MHCII、CD80/CD86表达,促进b细胞分化和IgG产生。
IF 5.9 2区 医学
American Journal of Respiratory Cell and Molecular Biology Pub Date : 2025-01-21 DOI: 10.1165/rcmb.2024-0428OC
Jaya Talreja, Changya Peng, Kezhong Zhang, Lobelia Samavati
{"title":"Novel Sarcoidosis Epitope Augments MHCII, CD80/CD86 Expression, Promotes B-Cell Differentiation and IgG Production.","authors":"Jaya Talreja, Changya Peng, Kezhong Zhang, Lobelia Samavati","doi":"10.1165/rcmb.2024-0428OC","DOIUrl":"https://doi.org/10.1165/rcmb.2024-0428OC","url":null,"abstract":"<p><p>Numerous chronic human disorders are associated with immune activation by obscure antigen(s). We identified a novel sarcoidosis-epitope (ChainA) by immunoscreening of a novel T7 phage library and confirmed an abundance of ChainA IgG-antibody in sarcoidosis. We tested whether ChainA epitope elicits immune responses through B-cell activation, plasma cell differentiation and antibody production. PBMCs from healthy controls and sarcoidosis patients were challenged by chemically synthesized ChainA epitope, and assessed cellular activation markers of B-cells, T-cells, MHC classes, plasma cell differentiation and Unfolded Protein Response (UPR) transcription factors. Chain A increased expression of MHCII class and CD80/CD86 costimulatory molecules. ChainA significantly augmented the transition of naïve B-cells to memory B-cells and plasma cells in sarcoidosis PBMCs compared to healthy PBMCs. B-Cells differentiation to antibody-secreting plasma cells requires activation of UPR, B lymphocyte-induced maturation protein 1 (Blimp-1) and X-box binding protein 1 (XBP-1). ChainA treatment upregulated the expression of Blimp-1 and spliced form of XBP-1, a transcriptional activator of endoplasmic reticulum (ER) stress response. Furthermore, the transition of B cells to plasma cells in response to ChainA induced the production of anti-ChainA IgG. In parallel to human PBMCs, utilizing murine splenocytes, we validated our observations that ChainA challenge augments MHCII expression, a robust UPR responses, and an increased production of IgG specific antibody against ChainA. These results indicate ChainA epitope may be involved in the pathogenesis of sarcoidosis, as it activates MHCII, memory B-cells, plasma cell differentiation and production of ChainA specific IgG.</p>","PeriodicalId":7655,"journal":{"name":"American Journal of Respiratory Cell and Molecular Biology","volume":" ","pages":""},"PeriodicalIF":5.9,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998349","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}
引用次数: 0
Improved Annotation of Asthma Gene Variants with Cell Type Deconvolution of Nasal and Lung Expression-Quantitative Trait Loci. 鼻腔和肺部表达-数量性状位点细胞型反褶积改进哮喘基因变异注释。
IF 5.9 2区 医学
American Journal of Respiratory Cell and Molecular Biology Pub Date : 2025-01-21 DOI: 10.1165/rcmb.2024-0251MA
Zaid W El-Husseini, Tatiana Karp, Andy Lan, Tessa E Gillett, Cancan Qi, Dmitry Khalenkow, Thys van der Molen, Chris Brightling, Alberto Papi, Klaus F Rabe, Salman Siddiqui, Dave Singh, Monica Kraft, Bianca Beghé, Philippe Joubert, Yohan Bossé, Don Sin, Ana H Cordero, Wim Timens, Corry-Anke Brandsma, Ke Hao, David C Nickle, Judith M Vonk, Martijn C Nawijn, Maarten van den Berge, Reinoud Gosens, Alen Faiz, Gerard H Koppelman
{"title":"Improved Annotation of Asthma Gene Variants with Cell Type Deconvolution of Nasal and Lung Expression-Quantitative Trait Loci.","authors":"Zaid W El-Husseini, Tatiana Karp, Andy Lan, Tessa E Gillett, Cancan Qi, Dmitry Khalenkow, Thys van der Molen, Chris Brightling, Alberto Papi, Klaus F Rabe, Salman Siddiqui, Dave Singh, Monica Kraft, Bianca Beghé, Philippe Joubert, Yohan Bossé, Don Sin, Ana H Cordero, Wim Timens, Corry-Anke Brandsma, Ke Hao, David C Nickle, Judith M Vonk, Martijn C Nawijn, Maarten van den Berge, Reinoud Gosens, Alen Faiz, Gerard H Koppelman","doi":"10.1165/rcmb.2024-0251MA","DOIUrl":"https://doi.org/10.1165/rcmb.2024-0251MA","url":null,"abstract":"<p><p>Asthma is a genetically complex inflammatory airway disease associated with over 200 Single nucleotide polymorphisms (SNPs). However, the functional effects of many asthma-associated SNPs in lung and airway epithelial samples are unknown. Here, we aimed to conduct expression quantitative trait loci (eQTL) analysis using a meta-analysis of nasal and lung samples. We hypothesize that incorporating cell-type proportions of airway and lung samples enhances eQTL analysis outcomes. Nasal brush (n=792) and lung tissue (n=1087) samples were investigated separately. Initially, a general eQTL analysis identified genetic variants associated with gene expression levels. Estimated cell-type proportions were adjusted based on the Human Lung Cell Atlas. Additionally, the presence of significant interaction effects between asthma-associated SNPs and each cell type proportion was explored and considered evidence for cell-type associated eQTL. In nasal brush and lung parenchyma samples, 44 and 116 asthma-associated SNPs were identified as eQTLs. Adjusting for cell-type proportions revealed eQTLs for an additional 17 genes (e.g., <i>FCER1G</i>, <i>CD200R1</i>, and <i>GABBR2</i>) and 16 Genes (e.g., <i>CYP2C8</i>, <i>SLC9A2</i>, and <i>SGCD</i>) in nose and lung, respectively. Moreover, we identified eQTLs for 9 SNPs annotated to genes such as <i>VASP</i>, <i>FOXA3</i>, <i>PCDHB12</i> displayed significant interactions with cell type proportions of Club, Goblet, and alveolar macrophages. Our findings demonstrate increased power for identifying eQTLs among asthma-associated SNPs by considering cell-type proportion of the bulk-RNA-seq data from nasal and lung tissues. Integration of cell-type deconvolution and eQTL analysis enhances our understanding of asthma genetics and cellular mechanisms, uncovering potential therapeutic targets for personalized interventions.</p>","PeriodicalId":7655,"journal":{"name":"American Journal of Respiratory Cell and Molecular Biology","volume":" ","pages":""},"PeriodicalIF":5.9,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998045","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}
引用次数: 0
Novel Immune Response Evasion Strategy to Redose Adeno-associated Viral Vectors and Prolong Survival in Surfactant Protein-B Deficient Mice. 表面活性剂蛋白b缺乏小鼠重新注射腺相关病毒载体延长生存期的新免疫应答逃避策略
IF 5.9 2区 医学
American Journal of Respiratory Cell and Molecular Biology Pub Date : 2025-01-13 DOI: 10.1165/rcmb.2024-0247OC
Martin H Kang, Sylvia P Thomas, Caralyn Westley, Thomas Blouin, Liqun Xu, Ying Kai Chan, Erin Lisk, Sarah Allen, Arul Vadivel, Kennedy Nangle, Janani Ramamurthy, Yanlong Pei, Lunndon Lewis, Jessica J Chiang, Marty J Romeo, Silvia Vaena, Elizabeth C O'Quinn, Henry D Schrecker, Casey G Langdon, Paul J Nietert, George M Church, Jeffrey A Whitsett, Sarah K Wootton, Bernard Thébaud
{"title":"Novel Immune Response Evasion Strategy to Redose Adeno-associated Viral Vectors and Prolong Survival in Surfactant Protein-B Deficient Mice.","authors":"Martin H Kang, Sylvia P Thomas, Caralyn Westley, Thomas Blouin, Liqun Xu, Ying Kai Chan, Erin Lisk, Sarah Allen, Arul Vadivel, Kennedy Nangle, Janani Ramamurthy, Yanlong Pei, Lunndon Lewis, Jessica J Chiang, Marty J Romeo, Silvia Vaena, Elizabeth C O'Quinn, Henry D Schrecker, Casey G Langdon, Paul J Nietert, George M Church, Jeffrey A Whitsett, Sarah K Wootton, Bernard Thébaud","doi":"10.1165/rcmb.2024-0247OC","DOIUrl":"https://doi.org/10.1165/rcmb.2024-0247OC","url":null,"abstract":"<p><p>Surfactant protein-B (SP-B) deficiency is a lethal neonatal respiratory disease with few therapeutic options. Gene therapy using adeno-associated viruses (AAV) to deliver human <i>SFTPB</i> cDNA (AAV-hSPB) can improve survival in a mouse model of SP-B deficiency. However, the effect of this gene therapy wanes. Gene therapy efficacy could be prolonged if AAV vectors were able to be redosed, but readministering vectors is hindered by an immune response which includes toll like receptor 9 (TLR9) recognition of unmethylated CpG DNA motifs in the AAV genome. One strategy to mitigate TLR9 recognition of AAV is to incorporate decoy nucleotide sequences within the AAV genome. This work examined if AAV containing these TLR9 inhibitory oligonucleotide sequences (AAV-hSPB<sub>TLR9i</sub>) could mitigate the immune response sufficiently to redose AAV in the lungs and prolong the survival of SP-B deficient mice. Indeed, AAV-hSPB<sub>TLR9i</sub> was able to be redosed multiple times which significantly improved survival in our mouse model. This was partially a result of long-term increased <i>SFTPB</i> RNA and SP-B protein expression. Conversely, redosing AAV-hSPB resulted in the rapid death of SP-B deficient mice after the second AAV dose. TLR9 inhibition enabled readministration by avoiding the broad stimulation of genes belonging to multiple pathways in the host immune and inflammatory responses, including components of the interferon pathways. Thus, redosing of AAV vectors in the lungs using TLR9 inhibitory sequences is a promising strategy for prolonging gene therapy efficacy, with a proof-of-concept for AAV readministration in a clinically relevant mouse model of SP-B deficiency.</p>","PeriodicalId":7655,"journal":{"name":"American Journal of Respiratory Cell and Molecular Biology","volume":" ","pages":""},"PeriodicalIF":5.9,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976956","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}
引用次数: 0
TGF-β Receptor-dependent Tissue Factor Release and Proteomic Profiling of Extracellular Vesicles from Mechanically Compressed Human Bronchial Epithelial Cells. 机械压缩支气管上皮细胞中TGF-β受体依赖的组织因子释放和细胞外小泡的蛋白质组学分析
IF 5.9 2区 医学
American Journal of Respiratory Cell and Molecular Biology Pub Date : 2025-01-07 DOI: 10.1165/rcmb.2024-0130OC
Chimwemwe Mwase, Stephen A Schworer, Rodney C Gilmore, Faria Khan, Alane Blythe C Dy, Adam L Haber, Richard C Boucher, Scott H Randell, Nigel Mackman, Jin-Ah Park
{"title":"TGF-β Receptor-dependent Tissue Factor Release and Proteomic Profiling of Extracellular Vesicles from Mechanically Compressed Human Bronchial Epithelial Cells.","authors":"Chimwemwe Mwase, Stephen A Schworer, Rodney C Gilmore, Faria Khan, Alane Blythe C Dy, Adam L Haber, Richard C Boucher, Scott H Randell, Nigel Mackman, Jin-Ah Park","doi":"10.1165/rcmb.2024-0130OC","DOIUrl":"https://doi.org/10.1165/rcmb.2024-0130OC","url":null,"abstract":"<p><p>In asthma, tissue factor (TF) levels are elevated in the lung. In our previous studies using mechanically compressed human bronchial epithelial (HBE) cells, which are a well-defined in vitro model of bronchoconstriction during asthma exacerbations, we detected TF within extracellular vesicles (EVs) released from compressed HBE cells. Here, to better characterize the potential role of this mechanism in asthma, we tested the extent to which the transcriptional regulation of epithelial cell-derived TF varied between donors with and without asthma. Using RNA in situ hybridization, we detected epithelial expression of <i>F3</i>, the TF protein-encoding gene, in human airways. Next, to determine the role of TGF-β receptor (TGF-βR) in the regulation of TF, we exposed well-differentiated HBE cells to mechanical compression in the presence or absence of a pharmacological inhibitor of TGF-β receptor. Furthermore, to identify the protein cargo of EVs released from HBE cells, we used Tandem Mass Tag mass spectrometry. Our findings revealed significantly higher <i>F3</i> expression in the airways of patients with asthma compared to healthy controls. However, we observed no differences in <i>F3</i> expression or TF release between asthmatic and non-asthmatic HBE cells, both at baseline and after compression. Mechanistically, compression-induced <i>F3</i> expression in HBE cells depended on TGF-βR. Our proteomic analysis identified 22 differentially released proteins in EVs, with higher levels in compressed cells compared to controls. Gene ontology analysis indicates these proteins are involved in diverse biological processes, highlighting a potential role for epithelial cell-derived EVs during asthma exacerbations.</p>","PeriodicalId":7655,"journal":{"name":"American Journal of Respiratory Cell and Molecular Biology","volume":" ","pages":""},"PeriodicalIF":5.9,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142942695","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}
引用次数: 0
Multicohort Analysis of Bronchial Epithelial Cell Expression in Healthy Subjects and Patients with Asthma Reveals Four Clinically Distinct Clusters. 健康受试者和哮喘患者支气管上皮细胞表达的多队列分析揭示了四个临床不同的簇。
IF 5.9 2区 医学
American Journal of Respiratory Cell and Molecular Biology Pub Date : 2024-12-19 DOI: 10.1165/rcmb.2024-0125OC
Ian Lee, Ananthakrishnan Ganesan, Laurynas Kalesinskas, Hong Zheng, Haejun C Ahn, Stephanie Christenson, Serpil C Erzurum, Joe Zein, Eugene R Bleecker, Deborah A Meyers, Mario Castro, John V Fahy, Elliot Israel, Nizar N Jarjour, Wendy Moore, Sally E Wenzel, David T Mauger, Bruce D Levy, Prescott G Woodruff, Victor E Ortega, Purvesh Khatri
{"title":"Multicohort Analysis of Bronchial Epithelial Cell Expression in Healthy Subjects and Patients with Asthma Reveals Four Clinically Distinct Clusters.","authors":"Ian Lee, Ananthakrishnan Ganesan, Laurynas Kalesinskas, Hong Zheng, Haejun C Ahn, Stephanie Christenson, Serpil C Erzurum, Joe Zein, Eugene R Bleecker, Deborah A Meyers, Mario Castro, John V Fahy, Elliot Israel, Nizar N Jarjour, Wendy Moore, Sally E Wenzel, David T Mauger, Bruce D Levy, Prescott G Woodruff, Victor E Ortega, Purvesh Khatri","doi":"10.1165/rcmb.2024-0125OC","DOIUrl":"https://doi.org/10.1165/rcmb.2024-0125OC","url":null,"abstract":"<p><p>Asthma is a heterogeneous disease with variable presentation and characteristics. There is a critical need to identify underlying molecular endotypes of asthma. We performed the largest transcriptomic analysis of 808 bronchial epithelial cell (BEC) samples across 11 independent cohorts, including 3 cohorts from the Severe Asthma Research Program (SARP). Using 7 datasets (218 asthma patients, 148 healthy controls) as discovery cohorts, we identified 505 differentially expressed genes (DEGs), which we validated in the remaining four datasets. Unsupervised clustering using the 505 DEGs identified four reproducible clusters of patients with asthma across all datasets corresponding to healthy controls, mild/moderate asthma, and severe asthma with significant differences in several clinical markers of severity, including pulmonary function, T2 inflammation, FeNO, and max bronchodilator reversibility. Importantly, we found the same clusters in pediatric patients using nasal lavage fluid cells, demonstrating the gene signature and clusters are not confounded by age and conserved in both lower and upper airways. The four asthma clusters may represent a unifying framework for understanding the molecular heterogeneity of asthma. Further study could potentially enable a precision medicine approach of matching therapies with asthma patients most likely to benefit.</p>","PeriodicalId":7655,"journal":{"name":"American Journal of Respiratory Cell and Molecular Biology","volume":" ","pages":""},"PeriodicalIF":5.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142863023","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}
引用次数: 0
LPS Increases Artery but Not Airway Contraction in Precision Cut Lung Slices from a Mouse Model of ARDS. LPS在急性呼吸窘迫综合征小鼠模型精确肺切片上增加动脉收缩,但不增加气道收缩。
IF 5.9 2区 医学
American Journal of Respiratory Cell and Molecular Biology Pub Date : 2024-12-19 DOI: 10.1165/rcmb.2024-0249OC
Emma Lamanna, Zoe F Kropf, Raymond Luong, Matthew Narayan, Elizabeth A Richards, Bailey Cardwell, Simon G Royce, Claudia A Nold-Petry, Jane E Bourke
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