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Chaudhary F, Agrawal DK. Ethnic and Racial Disparities in Clinical Manifestations of Atopic Dermatitis. ARCHIVES OF INTERNAL MEDICINE RESEARCH 2024; 7:114-133. [PMID: 38938453 PMCID: PMC11210272 DOI: 10.26502/aimr.0170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Atopic dermatitis is a heterogenous inflammatory skin illness that may last for long time and affect people of different racial and ethnic backgrounds. The condition primarily appears in infants and young children. There are people living with atopic dermatitis in every country and every ethnic group, although the frequency of the disease varies greatly. Due to the varied clinical presentations that atopic dermatitis can have, it can be challenging to characterize and diagnose the disease, particularly in adults. Nevertheless, there exists a dearth of information pertaining to the various presentations of atopic dermatitis among individuals from diverse racial and cultural groups. This critical review article offers a succinct and comprehensive overview of the current findings on the epidemiology of atopic dermatitis with regards to ethnic and racial disparities. The findings hold potential significance in advancing the development of targeted treatments for personalized medicine approaches and enhancing the quality of life for patients with atopy.
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Affiliation(s)
- Fihr Chaudhary
- Department of Translational Research, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona CA 91766
| | - Devendra K Agrawal
- Department of Translational Research, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona CA 91766
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2
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Herranz-Pinto P, Figueras Nart I, Monte-Boquet E, Tortajada Goitia B. Improving the Management and Follow-up of Atopic Dermatitis: A Delphi Process Report of Consensus Between Hospital Dermatologists and Pharmacists. ACTAS DERMO-SIFILIOGRAFICAS 2023; 114:708-717. [PMID: 37088291 DOI: 10.1016/j.ad.2023.04.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/28/2023] [Accepted: 04/02/2023] [Indexed: 04/25/2023] Open
Abstract
Managing atopic dermatitis, one of the most common dermatologic conditions, is often challenging. To establish consensus on recommendations for responding to various situations that arise when treating atopic dermatitis, a group of hospital pharmacists and dermatologists used the Delphi process. A scientific committee developed a Delphi survey with 2 blocks of questions to explore the group's views on 1) evaluating response to treatment in the patient with atopic dermatitis and 2) cooperation between the dermatology department and the hospital pharmacy service. The experts achieved an overall rate of consensus of 86% during the process. Conclusions were that dermatologists and hospital pharmacists must maintain good communication and coordinate their interventions to optimize the management of atopic dermatitis and patients' responses to treatment.
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Affiliation(s)
- P Herranz-Pinto
- Servicio de Dermatología, Hospital Universitario La Paz, Madrid, España.
| | - I Figueras Nart
- Servicio de Dermatología, Hospital Universitario Bellvitge, Barcelona, España
| | - E Monte-Boquet
- Servicio de Dermatología, Hospital Universitario y Politécnico La Fe, Valencia, España
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3
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Herranz-Pinto P, Figueras Nart I, Monte-Boquet E, Tortajada Goitia B. [Translated article] Improving the Management and Follow-up of Atopic Dermatitis: A Delphi Process Report of Consensus Between Hospital Dermatologists and Pharmacists. ACTAS DERMO-SIFILIOGRAFICAS 2023; 114:T708-T717. [PMID: 37453542 DOI: 10.1016/j.ad.2023.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/02/2023] [Indexed: 07/18/2023] Open
Abstract
Managing atopic dermatitis, one of the most common dermatologic conditions, is often challenging. To establish consensus on recommendations for responding to various situations that arise when treating atopic dermatitis, a group of hospital pharmacists and dermatologists used the Delphi process. A scientific committee developed a Delphi survey with two blocks of questions to explore the group's views on (1) evaluating response to treatment in the patient with atopic dermatitis and (2) cooperation between the dermatology department and the hospital pharmacy service. The experts achieved an overall rate of consensus of 86% during the process. Conclusions were that dermatologists and hospital pharmacists must maintain good communication and coordinate their interventions to optimize the management of atopic dermatitis and patients' responses to treatment.
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Affiliation(s)
- P Herranz-Pinto
- Servicio de Dermatología, Hospital Universitario La Paz, Madrid, Spain.
| | - I Figueras Nart
- Servicio de Dermatología, Hospital Universitario Bellvitge, Barcelona, Spain
| | - E Monte-Boquet
- Servicio de Dermatología, Hospital Universitario y Politécnico La Fe, Valencia, Spain
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Wang T, Qiao W, Xie Y, Ma J, Hu W, Yang L, Li X, Duan C, Wu S, Wang Y, Cheng K, Zhang Y, Zhuang R. CD226 deficiency exacerbated intestinal immune dysregulation in mice with dinitrochlorobenzene-induced atopic dermatitis. Immunology 2023. [PMID: 36938934 DOI: 10.1111/imm.13640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/16/2023] [Indexed: 03/21/2023] Open
Abstract
Intestinal mucosal immunity plays a pivotal role in host defence. In this study, we found that cluster of differentiation 226 (CD226) gene knockout (KO) led to more severe atopic dermatitis (AD)-related skin pathologies and bowel abnormalities in a 2,4-dinitrochlorobenzene (DNCB)-induced AD-like mouse model. Following DNCB administration, the expression of CD226 was elevated in intestinal mucosal tissues, including group 3 innate lymphoid cells (ILC3s) and CD4+ T cells of Peyer's patches (PPs). CD226 deficiency led to an overactive intestinal immune response in the AD-like mice, as evidenced by increased inflammation and Th1/Th2-related cytokine levels as well as increased Paneth cell numbers and antimicrobial peptide (AMP) expression, which was likely due to the higher interleukin (IL)-22 production in the lamina propria. Additionally, CD226 deficiency increased the production of IL-4 and IL-17 in mesenteric lymph nodes as well as the number of PPs and expression of immunoglobulin (Ig) A in B cells. Moreover, insufficient expression of CD226 affected the characterization of intraepithelial and lamina propria lymphocytes in the intestinal mucosa. Finally, the number of PPs was increased in CD4+ T cell-specific CD226 KO and regulatory T (Treg) cell-specific CD226 KO mice; thus, loss of CD226 in Treg cells resulted in impaired Treg cell-suppressive function. Therefore, our findings indicate that CD226 deficiency alters intestinal immune functionality in inflammatory diseases.
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Affiliation(s)
- Tingting Wang
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Wei Qiao
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Yang Xie
- Department of Otolaryngological, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jingchang Ma
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Wei Hu
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Lu Yang
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Xuemei Li
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Chujun Duan
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Shuwen Wu
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Yuling Wang
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Kun Cheng
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Yuan Zhang
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Ran Zhuang
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
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Liang J, Hu F, Tang H, Jiang F, Sang Y, Hong Y, Wang Q, Nuer K, Kang X. Systematic review and network meta-analysis of different types of emollient for the prevention of atopic dermatitis in infants. J Eur Acad Dermatol Venereol 2023; 37:501-510. [PMID: 36415973 DOI: 10.1111/jdv.18688] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 10/04/2022] [Indexed: 11/24/2022]
Abstract
Prophylactic application of emollients has been an effective strategy against infant atopic dermatitis (AD); however, the difference of different emollients is unknown. We performed this network meta-analysis to compare different emollients in preventing infant AD. A systematic search was performed in PubMed, EMBASE and Cochrane library to identify relevant studies from their inception through 28 February, 2022. We evaluated the quality of eligible studies using the Cochrane risk of bias assessment tool. Data analysis was performed using STATA 14.0. Eleven studies were included for data analysis. Direct meta-analysis suggested that early application of emollients effectively prevented AD development in high-risk infants (risk ratio [RR], 0.64; 95% confidence interval [CI], 0.47 to 0.88). Network meta-analysis suggested that emollient emulsion might the better option for preventing infant AD development, with a surface under the cumulative ranking curve (SUCRA) of 82.6% for all populations, 78.0% for high-risk populations and 79.2% for populations with food sensitization. Moreover, subjects receiving emollients more frequently experienced adverse events. Overall, early application of emollients is an effective strategy for preventing AD development in high-risk infants and emollient emulsion may be the optimal type. Future study with well-designed and large scale are warranted to validate our findings.
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Affiliation(s)
- Junqin Liang
- Department of Dermatology and Venereology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumchi, China.,Xinjiang Clinical Research Center for Dermatologic Diseases, Urumqi, China.,Xinjiang Key Laboratory of Dermatology Research (XJYS1707), Urumqi, China
| | - Fengxia Hu
- Department of Dermatology and Venereology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumchi, China.,Xinjiang Clinical Research Center for Dermatologic Diseases, Urumqi, China.,Xinjiang Key Laboratory of Dermatology Research (XJYS1707), Urumqi, China
| | - Hongbo Tang
- Department of Dermatology, Meishan City Maternal and Child Health Care Hospital, Sichuang Meishan, China
| | - Fanhe Jiang
- Department of Dermatology and Venereology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumchi, China.,Xinjiang Clinical Research Center for Dermatologic Diseases, Urumqi, China.,Xinjiang Key Laboratory of Dermatology Research (XJYS1707), Urumqi, China
| | - Yingbing Sang
- Department of Dermatology and Venereology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumchi, China.,Xinjiang Clinical Research Center for Dermatologic Diseases, Urumqi, China.,Xinjiang Key Laboratory of Dermatology Research (XJYS1707), Urumqi, China
| | - Yongzhen Hong
- Department of Dermatology and Venereology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumchi, China.,Xinjiang Clinical Research Center for Dermatologic Diseases, Urumqi, China.,Xinjiang Key Laboratory of Dermatology Research (XJYS1707), Urumqi, China
| | - Qian Wang
- Department of Dermatology and Venereology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumchi, China.,Xinjiang Clinical Research Center for Dermatologic Diseases, Urumqi, China.,Xinjiang Key Laboratory of Dermatology Research (XJYS1707), Urumqi, China
| | - Kalibi Nuer
- Department of Dermatology and Venereology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumchi, China.,Xinjiang Clinical Research Center for Dermatologic Diseases, Urumqi, China.,Xinjiang Key Laboratory of Dermatology Research (XJYS1707), Urumqi, China
| | - Xiaojing Kang
- Department of Dermatology and Venereology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumchi, China.,Xinjiang Clinical Research Center for Dermatologic Diseases, Urumqi, China.,Xinjiang Key Laboratory of Dermatology Research (XJYS1707), Urumqi, China
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Grueso-Navarro E, Navarro P, Laserna-Mendieta EJ, Lucendo AJ, Arias-González L. Blood-Based Biomarkers for Eosinophilic Esophagitis and Concomitant Atopic Diseases: A Look into the Potential of Extracellular Vesicles. Int J Mol Sci 2023; 24:ijms24043669. [PMID: 36835081 PMCID: PMC9967575 DOI: 10.3390/ijms24043669] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/01/2023] [Accepted: 02/03/2023] [Indexed: 02/17/2023] Open
Abstract
Eosinophilic esophagitis (EoE) is a chronic, Th2-inflammatory disease of the esophagus that can severely affect food intake. Currently, diagnosis and assessing response to treatment of EoE is highly invasive and requires endoscopy with esophageal biopsies. Finding non-invasive and accurate biomarkers is important for improving patient well-being. Unfortunately, EoE is usually accompanied by other atopies, which make it difficult to identify specific biomarkers. Providing an update of circulating EoE biomarkers and concomitant atopies is therefore timely. This review summarizes the current knowledge in EoE blood biomarkers and two of its most common comorbidities, bronchial asthma (BA) and atopic dermatitis (AD), focusing on dysregulated proteins, metabolites, and RNAs. It also revises the current knowledge on extracellular vesicles (EVs) as non-invasive biomarkers for BA and AD, and concludes with the potential use of EVs as biomarkers in EoE.
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Affiliation(s)
- Elena Grueso-Navarro
- Department of Gastroenterology, Hospital General de Tomelloso, Tomelloso, 13700 Ciudad Real, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45004 Toledo, Spain
- Correspondence: (E.G.-N.); (A.J.L.)
| | - Pilar Navarro
- Department of Gastroenterology, Hospital General de Tomelloso, Tomelloso, 13700 Ciudad Real, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45004 Toledo, Spain
| | - Emilio J. Laserna-Mendieta
- Department of Gastroenterology, Hospital General de Tomelloso, Tomelloso, 13700 Ciudad Real, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45004 Toledo, Spain
- Laboratory Medicine Department, Hospital Universitario de La Princesa, 28006 Madrid, Spain
- Instituto de Investigación Sanitaria Princesa (IIS-IP), 28006 Madrid, Spain
| | - Alfredo J. Lucendo
- Department of Gastroenterology, Hospital General de Tomelloso, Tomelloso, 13700 Ciudad Real, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45004 Toledo, Spain
- Instituto de Investigación Sanitaria Princesa (IIS-IP), 28006 Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, 28006 Madrid, Spain
- Correspondence: (E.G.-N.); (A.J.L.)
| | - Laura Arias-González
- Department of Gastroenterology, Hospital General de Tomelloso, Tomelloso, 13700 Ciudad Real, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45004 Toledo, Spain
- Instituto de Investigación Sanitaria Princesa (IIS-IP), 28006 Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, 28006 Madrid, Spain
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Atopic Keratoconjunctivitis: Diagnosis and Treatment. CURRENT OPHTHALMOLOGY REPORTS 2022. [DOI: 10.1007/s40135-022-00299-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Novel Interactions of Myristic Acid and FADS3 Variants Predict Atopic Dermatitis among Indonesian Infants. Nutrients 2022; 14:nu14214676. [DOI: 10.3390/nu14214676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 10/28/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
Fatty acids exert a range of different biological activities that could be relevant in the development of atopic dermatitis (AD). This study investigated the association of glycerophospholipid fatty acids (GPL-FA) with AD, and their interactions with single nucleotide polymorphisms (SNP) of the FADS1-3 gene cluster. Among 390 infants of the Indonesian ISADI study, GPL-FA were measured in umbilical plasma (P-0y) and in buccal cells at birth (B-0y), and again in buccal cells at AD onset or one year (B-1y). Prospective and cross-sectional associations with AD were assessed by logistic regression. Interactions of GPL-FA with 14 SNP were tested assuming an additive model. AD was diagnosed in 15.4% of participants. In B-1y, C18:2n-6 was inversely associated with AD; and positive associations were observed for C18:1n-9, C20:4n-6, C22:6n-3 and C20:4n-6/C18:2n-6. There were no prospective associations with AD, however, a significant interaction between the SNP rs174449 and B-0y C14:0 (myristic acid) was observed. This study indicates that Indonesian infants with AD have increased rates of endogenous long-chain polyunsaturated fatty acid production, as well as higher C18:1n-9 levels. GPL-FA measured at birth do not predict later AD incidence; however, genotype interactions reveal novel effects of myristic acid, which are modified by a FADS3 variant.
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The Acari Hypothesis, III: Atopic Dermatitis. Pathogens 2022; 11:pathogens11101083. [DOI: 10.3390/pathogens11101083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/12/2022] [Accepted: 09/20/2022] [Indexed: 11/17/2022] Open
Abstract
Atopic dermatitis is a chronic relapsing dermatopathology involving IgE against allergenic materials present on mammalian epithelial surfaces. Allergens are as diverse as pet danders, and polypeptides expressed by microbes of the mammalian microbiome, e.g., Malassezia spp. The Acari Hypothesis posits that the mammalian innate immune system utilizes pathogen-bound acarian immune effectors to protect against the vectorial threat posed by mites and ticks. Per The Hypothesis, IgE-mediated allergic disease is a specious consequence of the pairing of acarian gastrointestinal materials, e.g., allergenic foodstuffs, with acarian innate immune effectors that have interspecies operability. In keeping with The Hypothesis, the IgE profile of atopic patients should include both anti-acarian antibodies and specious antibodies responsible for specific allergy. Further, the profile should inform on the diet and/or environment of the acarian vector. In this regard, the prevalence of Demodex and Dermatophagoides on the skin of persons suffering from atopic dermatitis is increased. Importantly, the diets of these mites correspond well with the allergens of affected patients. In this report, roles for these specific acarians in the pathogenesis of atopic dermatitis are proposed and elaborated.
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Umar BU, Rahman S, Dutta S, Islam T, Nusrat N, Chowdhury K, Binti Wan Ahmad Fakuradzi WFS, Haque M. Management of Atopic Dermatitis: The Role of Tacrolimus. Cureus 2022; 14:e28130. [PMID: 35990561 PMCID: PMC9387362 DOI: 10.7759/cureus.28130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/18/2022] [Indexed: 11/13/2022] Open
Abstract
Atopic dermatitis (AD) is a long-lasting inflammatory dermatological condition characterized by itchy, eczematous, sparsely tiny blisters that hold a clear watery substance. Additionally, the diseased skin can suppurate, occasionally with weeping with thickening of the affected skin. This is considered one of the top skin disorders involving both children and adult populations globally. The principal therapeutic intervention for AD is long-standing topical glucocorticoids, which have been used for several decades. Corticosteroid therapy brings several adverse drug effects (ADRs), including irreversible skin atrophy. Tacrolimus belongs to the class of calcineurin inhibitors, which is a type of immunomodulator possessing promising efficacy in treating AD. Topical tacrolimus is an effective and safe non-corticosteroid substitute treatment for AD. We reviewed the available literature to compare and institute the safety, efficacy, and effectiveness of tacrolimus when equated to corticosteroid therapy in managing AD.
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Roach K, Roberts J. A comprehensive summary of disease variants implicated in metal allergy. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2022; 25:279-341. [PMID: 35975293 PMCID: PMC9968405 DOI: 10.1080/10937404.2022.2104981] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Allergic disease represents one of the most prominent global public health crises of the 21st century. Although many different substances are known to produce hypersensitivity responses, metals constitute one of the major classes of allergens responsible for a disproportionately large segment of the total burden of disease associated with allergy. Some of the most prevalent forms of metal allergy - including allergic contact dermatitis - are well-recognized; however, to our knowledge, a comprehensive review of the many unique disease variants implicated in human cases of metal allergy is not available within the current scientific literature. Consequently, the main goal in composing this review was to (1) generate an up-to-date reference document containing this information to assist in the efforts of lab researchers, clinicians, regulatory toxicologists, industrial hygienists, and other scientists concerned with metal allergy and (2) identify knowledge gaps related to disease. Accordingly, an extensive review of the scientific literature was performed - from which, hundreds of publications describing cases of metal-specific allergic responses in human patients were identified, collected, and analyzed. The information obtained from these articles was then used to compile an exhaustive list of distinctive dermal/ocular, respiratory, gastrointestinal, and systemic hypersensitivity responses associated with metal allergy. Each of these disease variants is discussed briefly within this review, wherein specific metals implicated in each response type are identified, underlying immunological mechanisms are summarized, and major clinical presentations of each reaction are described.Abbreviations: ACD: allergic contact dermatitis, AHR: airway hyperreactivity, ASIA: autoimmune/ autoinflammatory syndrome induced by adjuvants, BAL: bronchoalveolar lavage, CBD: chronic beryllium disease, CTCL: cutaneous T-cell lymphoma, CTL: cytotoxic T-Lymphocyte, DRESS: drug reaction with eosinophilia and systemic symptoms, GERD: gastro-esophageal reflux disease, GI: gastrointestinal, GIP: giant cell interstitial pneumonia, GM-CSF: granulocyte macrophage-colony stimulating factor, HMLD: hard metal lung disease, HMW: high molecular weight, IBS: irritable bowel syndrome, Ig: immunoglobulin, IL: interleukin, LMW: low molecular weight, PAP: pulmonary alveolar proteinosis, PPE: personal protective equipment, PRR: pathogen recognition receptor, SLE: systemic lupus erythematosus, SNAS: systemic nickel allergy syndrome, Th: helper T-cell, UC: ulcerative colitis, UV: ultraviolet.
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Affiliation(s)
- Ka Roach
- Allergy and Clinical Immunology Branch (ACIB), National Institute of Occupational Safety and Health (NIOSH), Morgantown, WV, USA
| | - Jr Roberts
- Allergy and Clinical Immunology Branch (ACIB), National Institute of Occupational Safety and Health (NIOSH), Morgantown, WV, USA
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Fang Z, Pan T, Wang H, Zhu J, Zhang H, Zhao J, Chen W, Lu W. Limosilactobacillus reuteri Attenuates Atopic Dermatitis via Changes in Gut Bacteria and Indole Derivatives from Tryptophan Metabolism. Int J Mol Sci 2022; 23:ijms23147735. [PMID: 35887083 PMCID: PMC9320942 DOI: 10.3390/ijms23147735] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/12/2022] [Accepted: 07/12/2022] [Indexed: 01/27/2023] Open
Abstract
Gut bacteria are closely associated with the development of atopic dermatitis (AD) due to their immunoregulatory function. Indole derivatives, produced by gut bacteria metabolizing tryptophan, are ligands to activate the aryl hydrocarbon receptor (AHR), which plays a critical role in attenuating AD symptoms. Limosilactobacillus reuteri, a producer of indole derivatives, regulates mucosal immunity via activating the AHR signaling pathway. However, the effective substance and mechanism of L. reuteri in the amelioration of AD remain to be elucidated. In this research, we found that L. reuteri DYNDL22M62 significantly improved AD-like symptoms in mice by suppressing IgE levels and the expressions of thymic stromal lymphopoietin (TSLP), IL-4, and IL-5. L. reuteri DYNDL22M62 induced an increase in the production of indole lactic acid (ILA) and indole propionic acid (IPA) via targeted tryptophan metabolic analysis and the expression of AHR in mice. Furthermore, L. reuteri DYNDL22M62 increased the proportions of Romboutsia and Ruminococcaceae NK4A214 group, which were positively related to ILA, but decreased Dubosiella, which was negatively related to IPA. Collectively, L. reuteri DYNDL22M62 with the role of modulating gut bacteria and the production of indole derivatives may attenuate AD via activating AHR in mice.
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Affiliation(s)
- Zhifeng Fang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Z.F.); (T.P.); (H.W.); (J.Z.); (H.Z.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Tong Pan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Z.F.); (T.P.); (H.W.); (J.Z.); (H.Z.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Hongchao Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Z.F.); (T.P.); (H.W.); (J.Z.); (H.Z.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Jinlin Zhu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Z.F.); (T.P.); (H.W.); (J.Z.); (H.Z.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Z.F.); (T.P.); (H.W.); (J.Z.); (H.Z.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
- Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research Institute Wuxi Branch, Wuxi 214122, China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou 225004, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Z.F.); (T.P.); (H.W.); (J.Z.); (H.Z.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou 225004, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Z.F.); (T.P.); (H.W.); (J.Z.); (H.Z.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Wenwei Lu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Z.F.); (T.P.); (H.W.); (J.Z.); (H.Z.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou 225004, China
- Correspondence:
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