Article
Medicine, Research & Experimental
Chenyang Lu, Shasha Li, Pingying Qing, Qiuping Zhang, Xing Ji, Zhigang Tang, Chunyan Chen, Tong Wu, Yidan Hu, Yi Zhao, Xiaohui Zhang, Qi He, David A. Fox, Chunyu Tan, Yubin Luo, Yi Liu
Summary: IgG4-related disease (IgG4-RD) is a systemic autoimmune disease with unclear pathogenesis. This study found that plasmablasts are expanded in IgG4-RD patients, and the proportions of CD4+ cytotoxic T lymphocytes, CD8+ cytotoxic T lymphocytes-GNLY, and gamma delta T cells are increased. Monocytes show stronger expression of genes related to cell adhesion and chemotaxis in IgG4-RD. These findings provide insights into the pathogenesis and potential therapeutic targets of IgG4-RD.
Article
Chemistry, Multidisciplinary
Tyler D. Gavitt, Alyssa K. Hartmann, Shraddha S. Sawant, Arlind B. Mara, Steven M. Szczepanek, Jessica L. Rouge
Summary: The study demonstrates the use of peptide cross-linked nucleic acid nanocapsules for delivering GATA3-specific DNAzyme to immune cells to modulate transcriptional activity and behavior. The results show potential in decreasing the severity of asthma symptoms in both in vitro and in vivo models, warranting further investigation for clinical application.
Article
Medicine, Research & Experimental
Hengcheng Zhang, Cecilia B. Cavazzoni, Manuel A. Podesta, Elsa D. Bechu, Garyfallia Ralli, Pragya Chandrakar, Jeong-Mi Lee, Ismail Sayin, Stefan G. Tullius, Reza Abdi, Anita S. Chong, Bruce R. Blazar, Peter T. Sage
Summary: This study found that a specific subset of effector Tfh cells was activated during allogeneic kidney transplantation, and these cells played a crucial role in transplant rejection by regulating the clonal dynamics of donor-specific germinal center B cells.
Article
Immunology
Vickram Tejwani, Amanda McCormack, Karthik Suresh, Han Woo, Ningchun Xu, Meghan F. Davis, Emily Brigham, Nadia N. Hansel, Meredith C. McCormack, Franco R. D'Alessio
Summary: In obese children with asthma, an increased expression of Ki-67 and FKBP51 in CD4(+) T-lymphocytes at baseline, as well as increased expression of FKBP51 after dexamethasone stimulation, was observed. However, these expressions showed no clear association with asthma control. Dexamethasone-induced CD4(+) FKBP51 expression was uniquely associated with worse asthma control in obese children with asthma, suggesting a potential mechanism for corticosteroid resistance in this population.
FRONTIERS IN IMMUNOLOGY
(2021)
Review
Immunology
Amania A. Sheikh, Joanna R. Groom
Summary: During viral infection, CD4(+) T cells differentiate into Th1 cells for inflammation and pathogen clearance, or Tfh cells for enhancing germinal center reactions. The lineage-defining transcription factors T-bet and Bcl6 play key roles in determining the fate of CD4(+) T cells toward Th1 or Tfh. Transcriptional networks guided by cytokine cues dynamically shape the fate and function of these cells during infection.
CELLULAR & MOLECULAR IMMUNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Wen-Chung Huang, Shu-Ju Wu, Kuo-Wei Yeh, Chian-Jiun Liou
Summary: Our study found that Gypenoside A can alleviate airway inflammation and hyperreactivity in asthmatic mice by reducing the expression of inflammatory cytokines and inhibiting the activation of Th2 cells.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Immunology
Julia Ritzau-Jost, Andreas Hutloff
Summary: This review discusses the optimization of Tfh cell generation and their interaction with B cells for therapeutic purposes. It also summarizes different T cell subsets, including Tph cells, and highlights the importance of T cell/B cell interaction in non-lymphoid tissues for the generation of protective antibodies.
Article
Immunology
Chenfeng He, Michael J. Malone, Ben S. Wendel, Ke-Yue Ma, Daniel Del Alcazar, David B. Weiner, Philip L. De Jager, Perla M. Del Rio-Estrada, Yuria Ablanedo-Terrazas, Gustavo Reyes-Teran, Laura F. Su, Ning Jiang
Summary: Follicular-helper T cells, a vital part of adaptive immunity, have complex and plastic functions, but study limitations have hindered a comprehensive understanding. CXCR3-expressing T-FH cells in chronic infection show abnormal accumulation in lymphoid tissues, suggesting potential functional differences that may enhance defense.
FRONTIERS IN IMMUNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Oscar J. Cordero, Carlos Rafael-Vidal, Ruben Varela-Calvino, Cristina Calvino-Sampedro, Beatriz Malvar-Fernandez, Samuel Garcia, Juan E. Vinuela, Jose M. Pego-Reigosa
Summary: Immune system CD4 T-cells with high cell-surface CD26 expression demonstrate anti-tumoral properties, especially when engineered with a chimeric antigen receptor. Different T helper cell subsets show variations in CD26 expression levels, which could impact research on CAR-T cells. The relationship between glycoprotein sCD26 and its enzymatic activity, as well as its correlation with specific T cell subsets, still requires further understanding.
Review
Nutrition & Dietetics
Hanna Sikorska-Szaflik, Joanna Polomska, Barbara Sozanska
Summary: This article discusses the increasing prevalence of asthma and obesity in the pediatric population, and highlights the worse symptoms and treatment response in obese children with asthma. The shared genetic and immunologic origin of asthma and obesity is suggested. Diet plays a crucial role in controlling both diseases.
Review
Pharmacology & Pharmacy
Shate Xiang, Jingjing Zhang, Mengge Zhang, Suhai Qian, Rongyun Wang, Yao Wang, Yingshi Xiang, Xinghong Ding
Summary: This meta-analysis found that SLE patients had lower percentage of Th1 cells and higher percentage of Th2 cells, with treatments normalizing some indicators. Gender and age affected the levels of Th1 and Th2 cells in SLE patients.
FRONTIERS IN PHARMACOLOGY
(2022)
Article
Immunology
Minghui Xue, Shuqin Xu, Li Su, Siwei He, Beiying Wu, Cunpeng Ji, Lin Lin, Xiaomeng Nie, Gang Cai
Summary: SP-A plays a critical role in modulating Tfh cell differentiation and IgE generation in asthma. Knockout mice lacking SP-A showed increased allergic inflammation, elevated levels of Tfh2 cells, and increased IgE production.
CLINICAL IMMUNOLOGY
(2021)
Article
Immunology
Amelie M. Jule, Ki Pui Lam, Maria Taylor, Kacie J. Hoyt, Kevin Wei, Maria Gutierrez-Arcelus, Siobhan M. Case, Mia Chandler, Margaret H. Chang, Ezra M. Cohen, Fatma Dedeoglu, Olha Halyabar, Jonathan Hausmann, Melissa M. Hazen, Erin Janssen, Jeffrey Lo, Mindy S. Lo, Esra Meidan, Jordan E. Roberts, Holly Wobma, Mary Beth F. Son, Robert P. Sundel, Pui Y. Lee, Peter T. Sage, Talal A. Chatila, Peter A. Nigrovic, Deepak A. Rao, Lauren A. Henderson
Summary: Tph cells play a crucial role in driving B cell maturation and antibody production in seropositive rheumatoid arthritis. In this study, the researchers investigated T cell-B cell interactions in juvenile oligoarthritis and found dysregulated Tph cells promoting B cell antibody production in the synovial fluid of patients with antinuclear antibodies. The single-cell transcriptomics analysis revealed the upregulation of B cell help-associated genes in Tph cells from ANA-positive patients. These findings highlight the central role of disordered T cell-help to B cells in autoantibody-positive arthritides.
FRONTIERS IN IMMUNOLOGY
(2023)
Review
Nutrition & Dietetics
Sanchez-Solis Manuel, Garcia-Marcos Luis
Summary: This paper reviews the epidemiology of children with asthma and obesity, as well as the consequences of being obese on the respiratory system, including inflammation state, respiratory changes, and insulin resistance.
Article
Medicine, Research & Experimental
Zhi-Yong Zhou, Yan Deng, Ying-Ling Wen, Yun-qi Cheng, Kuang-Xun Li, Hong-ping Chen
Summary: Chronic inflammation plays a crucial role in obesity-related complications. Knocking out Toll-like receptor 4 (TLR4) prevents high-fat diet-induced obesity, but in aged mice, TLR4 knockout leads to spontaneous obesity. TLR4 knockout activates the TRIF/IRF3 pathway, causing inflammation, altering macrophage activity, and resulting in imbalances in lymphocyte populations, indicating the occurrence of chronic low-grade inflammation.
BIOMEDICINE & PHARMACOTHERAPY
(2022)
Article
Allergy
Nada Alabdulkarim, Jiaxiang Gai, James Bost, Dinesh K. Pillai, Stephen J. Teach, Deepa Rastogi
Summary: Children hospitalized for asthma exacerbation during the COVID-19 pandemic were older and had less atopy compared to those hospitalized before the pandemic. A larger proportion of patients received magnesium sulfate in the emergency department, indicating a more severe presentation of asthma during the pandemic.
ANNALS OF ALLERGY ASTHMA & IMMUNOLOGY
(2022)
Article
Allergy
Laura Chen, Ilir Agalliu, Adam Roth, Deepa Rastogi
Summary: This study found that intermediate and high levels of FeNO are associated with lower airway obstruction and hospitalizations, suggesting that FeNO measurements can be an important tool in identifying asthma-related morbidity in minority children.
Article
Endocrinology & Metabolism
Kassidy Lundy, John F. Greally, Grace Essilfie-Bondzie, Josephine B. Olivier, Reanna Dona-Termine, John M. M. Greally, Masako Suzuki
Summary: Vitamin D plays a critical role in calcium homeostasis, the immune system, and normal development. Many global epidemiological studies have found high prevalence rates of vitamin D deficiency and insufficiency, particularly in reproductive age and pregnant women. This study using a mouse model found that prenatal vitamin D deficiency increases the occurrence of liver histopathological changes and alters gene expression profiles, potentially contributing to offspring health risks.
FRONTIERS IN ENDOCRINOLOGY
(2022)
Article
Genetics & Heredity
Jamie M. Ellingford, Joo Wook Ahn, Richard D. Bagnall, Diana Baralle, Stephanie Barton, Chris Campbell, Kate Downes, Sian Ellard, Celia Duff-Farrier, David R. FitzPatrick, John M. Greally, Jodie Ingles, Neesha Krishnan, Jenny Lord, Hilary C. Martin, William G. Newman, Anne O'Donnell-Luria, Simon C. Ramsden, Heidi L. Rehm, Ebony Richardson, Moriel Singer-Berk, Jenny C. Taylor, Maggie Williams, Jordan C. Wood, Caroline F. Wright, Steven M. Harrison, Nicola Whiffin
Summary: This article discusses genetic variants in non-coding regions and proposes guidelines for defining and interpreting these variants. The aim of these guidelines is to increase the number and range of non-coding region variants that can be clinically interpreted, leading to new diagnoses and the discovery of novel disease mechanisms.
Article
Critical Care Medicine
Changsuek Yon, David A. Thompson, Joseph A. Jude, Reynold A. Panettieri, Deepa Rastogi
Summary: Pediatric obesity-related asthma is a nonatopic asthma phenotype that has a high disease burden and few effective therapies. The upregulation of CDC42 in Th cells is associated with airway smooth muscle biology. The study investigated the mechanisms underlying this association.
AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE
(2023)
Review
Hematology
Patricia A. Shi, Larry L. Luchsinger, John M. Greally, Colleen S. Delaney
Summary: This review discusses the decline in the use of umbilical cord blood (UCB) as a source of donor hematopoietic stem cells (HSC) for transplantation and emphasizes the potential of UCB and related birthing tissues for a wide range of therapies. When best practices are followed, UCB transplant can provide better survival and decreased risks compared to other donor sources. The review suggests that the potential of UCB for transplant and other cell-based therapies is undervalued and underutilized.
CURRENT OPINION IN HEMATOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Stacey R. McGee, Shivakumar Rajamanickam, Sandeep Adhikari, Oluwatosin C. Falayi, Theresa A. Wilson, Brian J. Shayota, Jessica A. Cooley Coleman, Cindy Skinner, Raymond C. Caylor, Roger E. Stevenson, Caio Robledo D' Angioli Costa Quaio, Berenice Cunha Wilke, Jennifer M. Bain, Kwame Anyane-Yeboa, Kaitlyn Brown, John M. Greally, Emilia K. Bijlsma, Claudia A. L. Ruivenkamp, Keren Politi, Lydia A. Arbogast, Michael W. Collard, Jodi Huggenvik, Sarah H. Elsea, Philip J. Jensik
Summary: De novo deleterious and heritable biallelic mutations in the DNA binding domain of DEAF1 result in a phenotypic spectrum of neurodevelopmental disorders, affecting genes involved in neuronal function and dendritic spine maintenance. This study expands the clinical spectrum of individuals with DEAF1-associated neurodevelopmental disorders, enhances our understanding of DEAF1's potential roles in neuronal function, and demonstrates the dominant negative activity of de novo variants.
HUMAN MOLECULAR GENETICS
(2023)
Article
Pediatrics
Jonathan C. Schroeder, Matthew P. Sharron, Kitman Wai, Dinesh K. Pillai, Deepa Rastogi
Summary: Childhood asthma is associated with longer hospital stays and greater need for respiratory support among children hospitalized with COVID-19.
PEDIATRIC PULMONOLOGY
(2023)
Article
Multidisciplinary Sciences
Netha Ulahannan, Ronald Cutler, Reanna Dona-Termine, Claudia A. Simoes-Pires, N. Ari Wijetunga, Matthew McKnight Croken, Andrew D. Johnston, Yu Kong, Shahina B. Maqbool, Masako Suzuki, John M. Greally
Summary: By studying the gene expression and chromatin states of human fibroblasts infected with Toxoplasma gondii, we gained insights into the molecular interactions between the intracellular pathogen and its host cell. We found that host cell genes were activated to regulate cellular processes, some of which were protective of the host cell while others were advantageous to the pathogen. Analysis of the host and parasite genomic information allowed us to annotate the T. gondii genome more accurately and discover new genes and cis-regulatory elements. By inferring the involved transcription factors and cell signaling responses in the host cell, we could understand how T. gondii perturbs host cell physiology.
Meeting Abstract
Hematology
Caner Saygin, Jacob Stauber, Ibrahim Aldoss, Adam S. Sperling, Lachelle D. Weeks, Marlise R. Luskin, Todd C. Knepper, Pankhuri Wanjari, Peng Wang, Angela Lager, Jeremy Segal, Benjamin Kaumeyer, Sandeep Gurbuxani, Girish Venkataraman, Jason Xiaojun Cheng, Bartholomew Eisfelder, Oliver Bohorquez, Anand Ashwin Patel, Olatoyosi Odenike, Richard A. Larson, Lucy A. Godley, Daniel A. Arber, Benjamin L. Ebert, John M. Greally, Ulrich G. Steidl, Bijal D. Shah, Wendy Stock
Article
Allergy
Sheena Starr, Matthew Wysocki, Jesenya D. DeLeon, Gabriella Silverstein, Kimberly Arcoleo, Deepa Rastogi, Jonathan M. Feldman
Summary: The study found that pulmonary function in children with obesity-related asthma was associated with hospitalizations and oral steroid bursts, but not with self-reported asthma control. This suggests the importance of incorporating measures of pulmonary function into the treatment of pediatric obesity-related asthma.
Review
Genetics & Heredity
Julia J. Wattacheril, Srilakshmi Raj, David A. Knowles, John M. Greally
Summary: It is believed that environmental influences can affect gene expression by altering epigenetic regulators of transcription. These epigenetic changes can be maintained long term and through cell division, resulting in a prolonged effect of the exposure. The evidence supporting this model comes from the observation of changes in molecular regulators of transcription following exposures. However, this model may be oversimplistic, and further research is needed to fully understand the complex associations between environmental exposures and phenotypes.
Article
Pediatrics
Anna Reichenbach, Wade O'Brien, Sarai Duran, Kayla J. Authelet, Robert J. Freishtat, Evan P. Nadler, Deepa Rastogi
Summary: This study analyzed the cellular profile of visceral adipose tissue from youth with obesity-related asthma and obesity without asthma, and found enrichment of macrophage-mediated inflammation in the adipose tissue of youth with obesity-related asthma. However, there was a lack of correlation between adipose tissue cells and metabolic dysregulation in youth with obesity-related asthma, highlighting the need to explore distinguishing factors associated with adipose tissue inflammation in obesity-related asthma.
Article
Respiratory System
Kjell Erik Julius Hakansson, Silvia Cabrera Guerrero, Vibeke Backer, Charlotte Suppli Ulrik, Deepa Rastogi
Summary: This study investigated the disease and healthcare access of children and adolescents with asthma in Denmark and found that there was a significant unmet need for specialist care, particularly among those with poorly controlled asthma, even in a free healthcare system.
RESPIRATORY RESEARCH
(2023)