Review
Allergy
Jessica W. Hui-Beckman, Elena Goleva, Evgeny Berdyshev, Donald Y. M. Leung
Summary: Atopic dermatitis (AD) and food allergy (FA) are closely related and one-third of AD children develop concomitant FA. Epithelial barrier dysfunction is important in both diseases. Genetic factors such as filaggrin mutations and IL-4 receptor alpha chain polymorphisms are associated with increased risk. In addition, several environmental exposures lead to reduced filaggrin and contribute to skin barrier dysfunction. Staphylococcus aureus colonization appears to contribute to AD and FA as well as activating the type 2 immune response. Comprehensive multiomic studies have identified distinct atopic endotypes with unique characteristics, providing an opportunity for improved diagnosis and prevention of atopy.
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
(2023)
Article
Allergy
Alain Lefevre-Utile, Melissa Saichi, Peter Olah, Marc Delord, Bernhard Homey, Vassili Soumelis
Summary: The study identified 4 endotypes of AD and discovered key gene sets associated with specific biological pathways. There were significant differences in disease severity and S. aureus colonization between different clusters. These findings could potentially provide new insights into personalized treatment strategies.
Article
Allergy
Jocelyn M. Biagini, John W. Kroner, Asel Baatyrbek Kyzy, Alexandra Gonzales, Hua He, Mariana Stevens, Brittany Grashel, Daniel Spagna, Samuel Paul, Rahul Patel, Angelo Bucci, Michael G. Sherenian, Liza Bronner Murrison, Lisa J. Martin, Gurjit K. Khurana Hershey
Summary: This study investigates the atopic march in Black and White children and identifies distinct allergic trajectories in these populations. It reveals that Black children have a higher risk of asthma despite a more intact skin barrier and less sensitization, food allergy, and allergic rhinitis. Conversely, White children have a lower risk of asthma despite a more dysfunctional skin barrier and higher rates of sensitization, food allergy, and allergic rhinitis.
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
(2022)
Article
Allergy
Lena Moebus, Elke Rodriguez, Inken Harder, Nicole Boraczynski, Silke Szymczak, Matthias Huebenthal, Dora Stoelzl, Sascha Gerdes, Andreas Kleinheinz, Susanne Abraham, Annice Heratizadeh, Christiane Handrick, Eva Haufe, Thomas Werfel, Jochen Schmitt, Stephan Weidinger
Summary: This study explored the blood transcriptomic features of moderate to severe atopic dermatitis (AD). The results showed that AD patients exhibited pronounced inflammatory expression signatures and could be stratified into eosinophilic and noneosinophilic endotypes. Additionally, treatment strategies for the eosinophil-high endotype may require more attention to the restoration of natural killer cell function.
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Hyun Jung Park, Sung Won Lee, Luc Van Kaer, Myeong Sup Lee, Seokmann Hong
Summary: Interleukin-7 (IL-7) is important in maintaining the balance of CD4(+) and CD8(+) T cells. However, its role in allergic disorders, such as atopic dermatitis (AD), has not been well understood. By studying IL-7-deficient AD-prone mice, it was found that IL-7 deficiency worsened AD development, indicating that IL-7 could be a potential therapeutic target for treating AD.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Allergy
Daphne S. Bakker, Stefan Nierkens, Edward F. Knol, Barbara Giovannone, Eveline M. Delemarre, Jorien van der Schaft, Femke van Wijk, Marjolein S. De Bruin-Weller, Julia Drylewicz, Judith L. Thijs
Summary: Atopic dermatitis (AD) is highly heterogeneous and can be stratified into biomarker-based endotypes. Through biomarker analysis, we identified four distinct clusters of AD patients, suggesting the potential for personalized therapies based on immunopathology.
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
(2021)
Article
Allergy
Yusef Eamon Badi, Ana B. Pavel, Stelios Pavlidis, John H. Riley, Stewart Bates, Nazanin Zounemat Kermani, Richard Knowles, Johan Kolmert, Craig E. Wheelock, Sally Worsley, Mohib Uddin, Kjell Alving, Per S. Bakke, Annelie Behndig, Massimo Caruso, Pascal Chanez, Louise J. Fleming, Stephen J. Fowler, Urs Frey, Peter Howarth, Ildiko Horvath, Norbert Krug, Anke H. Maitland-van der Zee, Paolo Montuschi, Graham Roberts, Marek Sanak, Dominick E. Shaw, Florian Singer, Peter J. Sterk, Ratko Djukanovic, Sven-Eric Dahlen, Yi-Ke Guo, Kian Fan Chung, Emma Guttman-Yassky, Ian M. Adcock
Summary: The disease signature identified in atopic dermatitis (AD) can also be seen in adults with severe asthma, and the transcriptomic signature of AD patients who respond to anti-IL-22 therapy is enriched in severe asthma. The AD disease signature is enriched in the blood and sputum of patients with asthma and is correlated with the severity of asthma. The FZ-response signature is enriched in the blood and sputum of asthmatic patients and is correlated with the presence of neutrophils and mixed granulocytes in the sputum.
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
(2022)
Article
Allergy
Lena Moebus, Elke Rodriguez, Inken Harder, Nicole Boraczynski, Silke Szymczak, Matthias Huebenthal, Dora Stoelzl, Sascha Gerdes, Andreas Kleinheinz, Susanne Abraham, Annice Heratizadeh, Christiane Handrick, Eva Haufe, Thomas Werfel, Jochen Schmitt, Stephan Weidinger
Summary: This study identified blood transcriptomic features of moderate to severe AD patients, stratifying them into eosinophilic and noneosinophilic endotypes. Patients of different endotypes exhibited significant differences in gene expression and clinical manifestations, which may be crucial for designing stratified trial designs and treatment strategies.
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE
(2022)
Article
Biochemistry & Molecular Biology
Reiko Kageyama, Taisuke Ito, Shiho Hanai, Naomi Morishita, Shinsuke Nakazawa, Toshiharu Fujiyama, Tetsuya Honda, Yoshiki Tokura
Summary: This study aimed to compare the immunological properties of different types of AA patients and their associated AD patients, revealing that type 2 immunity may be involved in AA development in patients with extrinsic AD.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Review
Cell Biology
Alicja Mesjasz, Magdalena Trzeciak, Jolanta Glen, Marta Jaskulak
Summary: Interleukin 37 is a member of the IL-1 cytokine family with anti-inflammatory and immunosuppressive effects. It acts both extracellularly and intracellularly, and is linked to IL-18 and regulates Th2 inflammation in atopic dermatitis.
Article
Biochemistry & Molecular Biology
Chenxi Wu, Anqi Lyu, Shijun Shan
Summary: The main cause of atopic dermatitis (AD) is Th2 inflammation, and serum levels of CCL17 and CCL22 are associated with the severity of the disease. Fulvic acid (FA) is a natural substance with anti-inflammatory, antibacterial, and immunomodulatory effects. The experiments showed that FA can reduce the expression of TARC/CCL17 and MDC/CCL22 in stimulated HaCaT cells. FA inhibits the production of CCL17 and CCL22 by deactivating the p38 MAPK and JNK pathways. In mice with AD, FA effectively reduced symptoms and serum levels of CCL17 and CCL22 induced by DNCB. In conclusion, topical application of FA can alleviate AD by downregulating CCL17 and CCL22 expression via inhibition of P38 MAPK and JNK phosphorylation, making it a potential therapeutic agent for AD.
Article
Biochemistry & Molecular Biology
Thamires Rodrigues de Sousa, Beatriz Oliveira Fagundes, Andrezza Nascimento, Lorena Abreu Fernandes, Fabio da Ressureicao Sgnotto, Raquel Leao Orfali, Valeria Aoki, Alberto Jose da Silva Duarte, Sabri Saeed Sanabani, Jefferson Russo Victor
Summary: This study aimed to evaluate the effect of serum IgG from adult atopic dermatitis (AD) patients on the thymic maturation of IL-22-producing T cells and CLA+ T cells of non-atopic infants, as well as the expression of miRNAs in cultured thymocytes. The results showed that IgG from AD patients could increase the frequency of CLA+ CD4+ T cells in non-atopic infant thymocytes, and miRNA expression was altered in AD IgG-treated thymocytes compared to control conditions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Tianheng Hou, Miranda Sin-Man Tsang, Lea Ling-Yu Kan, Peiting Li, Ida Miu-Ting Chu, Christopher Wai-Kei Lam, Chun-Kwok Wong
Summary: IL-37b has been shown to regulate basophil activation mediated by TSLP and reduce the release of IL-4, suggesting its potential as a target for alleviating symptoms of AD.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Review
Allergy
Jihyun Kim, Kangmo Ahn
Summary: The review discusses the phenotypes and endotypes of atopic dermatitis and their potential use in personalized medicine. Atopic dermatitis can be classified into different phenotypes based on disease courses, and recent studies have shown that these phenotypes can be further categorized into endotypes based on immunologic markers. New biologic agents targeting specific cytokines have shown therapeutic potential for personalized treatment of atopic dermatitis. Further research is needed to define more detailed endotype classifications and provide endotype-driven targeted therapies for personalized medicine.
CURRENT OPINION IN ALLERGY AND CLINICAL IMMUNOLOGY
(2022)
Review
Biochemistry & Molecular Biology
Gaku Tsuji, Kazuhiko Yamamura, Koji Kawamura, Makiko Kido-Nakahara, Takamichi Ito, Takeshi Nakahara
Summary: IL-33 and IL-37 co-regulate the balance between inflammation and anti-inflammation, and are involved in the pathogenesis of inflammatory skin diseases such as AD and psoriasis. AHR-mediated regulation of their expression may offer new therapeutic strategies for these diseases.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Allergy
Helen He, Randall Li, Seulah Choi, Lisa Zhou, Ana Pavel, Yeriel D. Estrada, James G. Krueger, Emma Guttman-Yassky
ANNALS OF ALLERGY ASTHMA & IMMUNOLOGY
(2020)
Article
Dermatology
E. Del Duca, J. Ruano Ruiz, A. B. Pavel, R. Dutt Sanyal, T. Song, J. Gay-Mimbrera, N. Zhang, Y. D. Estrada, X. Peng, Y. Renert-Yuval, R. G. Phelps, R. Paus, J. G. Krueger, E. Guttman-Yassky
BRITISH JOURNAL OF DERMATOLOGY
(2020)
Article
Genetics & Heredity
Liron Malki, Ofer Sarig, Nicole Cesarato, Janan Mohamad, Talia Canter, Sari Assaf, Mor Pavlovsky, Dan Vodo, Yossi Anis, Ofer Bihari, Kiril Malovitski, Andrea Gat, Holger Thiele, Bethany E. Perez White, Liat Samuelov, Arti Nanda, Amy S. Paller, Regina C. Betz, Eli Sprecher
GENETICS IN MEDICINE
(2020)
Article
Allergy
Benjamin Ungar, Ana B. Pavel, Randall Li, Grace Kimmel, John Nia, Peter Hashim, Hee Jin Kim, Margot Chima, Anjali S. Vekaria, Yeriel Estrada, Hui Xu, Xiangyu Peng, Giselle K. Singer, Danielle Baum, Yasaman Mansouri, Mark Taliercio, Emma Guttman-Yassky
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
(2021)
Article
Dermatology
Jacob W. Glickman, Celina Dubin, Yael Renert-Yuval, Dante Dahabreh, Grace W. Kimmel, Kelsey Auyeung, Yeriel D. Estrada, Giselle Singer, James G. Krueger, Ana B. Pavel, Emma Guttman-Yassky
Summary: This study identified abnormality in moderate to severe alopecia areata (AA) and associated circulatory biomarkers. The results show systemic immune, cardiovascular, and atherosclerosis biomarker dysregulation in AA patients, indicating the necessity for systemic treatment approaches.
JOURNAL OF THE AMERICAN ACADEMY OF DERMATOLOGY
(2021)
Article
Allergy
Ana B. Pavel, Yael Renert-Yuval, Jianni Wu, Ester Del Duca, Aisleen Diaz, Rachel Lefferdink, Milie M. Fang, Talia Canter, Stephanie M. Rangel, Ning Zhang, James G. Krueger, Amy S. Paller, Emma Guttman-Yassky
Summary: Global transcriptomic profiling using tape strips in early-onset pediatric AD reveals immune and barrier alterations in both lesional and nonlesional skin, with significant dysregulation of Th2 and Th22/Th17-related genes. This approach provides insight into disease pathomechanisms and cutaneous disease activity, highlighting the potential utility of tape strips in studying pediatric AD.
Letter
Allergy
Ana B. Pavel, Jianni Wu, Yael Renert-Yuval, Ester Del Duca, Jacob W. Glickman, Rachel L. Miller, Amy S. Paller, James G. Krueger, Emma Guttman-Yassky
Article
Allergy
Helen He, Robert Bissonnette, Jianni Wu, Aisleen Diaz, Etienne Saint-Cyr Proulx, Catherine Maari, Carolyn Jack, Maudeline Louis, Yeriel Estrada, James G. Krueger, Ning Zhang, Ana B. Pavel, Emma Guttman-Yassky
Summary: This study utilized RNA-seq analysis of tape strips from lesional and nonlesional skin of patients with moderate-to-severe AD and psoriasis, revealing distinct immune and barrier signatures in the two diseases. The findings suggest the potential utility of tape strips as a minimally invasive alternative to biopsies for detecting disease biomarkers. Differences in gene expression profiles between AD and psoriasis highlight the unique pathophysiological mechanisms of these two skin disorders.
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
(2021)
Article
Allergy
Helen He, Ester Del Duca, Aisleen Diaz, Hyun Je Kim, Jesus Gay-Mimbrera, Ning Zhang, Jianni Wu, Jessica Beaziz, Yeriel Estrada, James G. Krueger, Ana B. Pavel, Juan Ruano, Emma Guttman-Yassky
Summary: This study found that markers of epidermal hyperplasia and T-cell/dendritic cell infiltration were increased in the skin tissues of all AD patients, regardless of disease severity. Levels of T(H)2/T(H)22 cytokines were significantly elevated in both lesional and nonlesional skin of all patients, while T(H)1 and T(H)17 markers were increased only in lesional skin of mild AD patients. Blood profiles showed gradual increases in inflammatory markers in moderate and severe AD patients, but no significant differences were observed in mild AD patients compared to healthy controls.
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
(2021)
Letter
Allergy
Caroline Meyer Olesen, Ana B. Pavel, Jianni Wu, Daniela Mikhaylov, Ester Del Duca, Yeriel Estrada, James G. Krueger, Ning Zhang, Maja-Lisa Clausen, Tove Agner, Emma Guttman-Yassky
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE
(2021)
Letter
Allergy
Jacob W. Glickman, Ana B. Pavel, Emma Guttman-Yassky, Rachel L. Miller
Article
Dermatology
Paola Morelli, Marco Gaspari, Caterina Gabriele, Stefano Dastoli, Luigi Bennardo, Ana Brandusa Pavel, Cataldo Patruno, Ester Del Duca, Steven P. Nistico
Summary: The study investigated the proteomic profile of the skin barrier in atopic dermatitis (AD) patients, revealing various abnormalities including downregulation of proteins, lipid metabolism disturbances, imbalance of antioxidant and inflammatory processes, among others. This research offers a new perspective on the pathomechanisms of AD by identifying a unique signature in the skin barrier of AD patients.
EXPERIMENTAL DERMATOLOGY
(2021)
Article
Allergy
Yael Renert-Yuval, Ester Del Duca, Ana B. Pavel, Milie Fang, Rachel Lefferdink, Jianni Wu, Aisleen Diaz, Yeriel D. Estrada, Talia Canter, Ning Zhang, Annette Wagner, Sarah Chamlin, James G. Krueger, Emma Guttman-Yassky, Amy S. Paller
Summary: The common signature of AD across ages is T(H)2/T(H)22-skewed, but the specific expression of cytokines varies widely. Barrier abnormalities are present in all AD age groups, but significant decreases in filaggrin expression are only seen in adults.
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY
(2021)
Article
Dermatology
Madeline Kim, Daniela Mikhaylov, Stephanie M. Rangel, Ana B. Pavel, Helen He, Yael Renert-Yuval, Ester Del Duca, Kunal Malik, Thy Huynh, Erin Ibler, Mary Sun, Ning Zhang, Yeriel Estrada, James Krueger, Amy S. Paller, Emma Guttman-Yassky
Summary: The study provides comprehensive characterization of skin from different subtypes of ichthyosis, revealing shared inflammatory and barrier function abnormalities. These findings contribute to the understanding of the pathogenesis of these subtypes and inform the development of subtype-specific treatments.
JOURNAL OF INVESTIGATIVE DERMATOLOGY
(2022)