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Nakamura T, Nakano T, Simpson A, Kono M, Curtin JA, Kobayashi T, Murray CS, Akiyama M, Imanishi M, Mikuriya M, Custovic A, Shimojo N. Trajectories of egg sensitization in childhood: Two birth cohorts in Asia and Europe. Allergy 2024. [PMID: 39087444 DOI: 10.1111/all.16264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 06/18/2024] [Accepted: 06/23/2024] [Indexed: 08/02/2024]
Abstract
BACKGROUND Hen's egg exposure through impaired skin barrier is considered a major mechanism of sensitization to eggs. However, the impact of filaggrin (FLG) gene loss-of-function mutations on the natural history of egg sensitization lacks consensus among studies. OBJECTIVE To evaluate the association between the natural course of egg sensitization and FLG mutations. METHODS We used Japanese and the UK birth cohorts (CHIBA and MAAS) to identify the longitudinal patterns of egg sensitization until mid-school age and examined the relationship between the identified patterns and FLG mutations. Sensitization was assessed using egg white-specific IgE levels or skin prick tests (SPTs). Egg allergy was confirmed by parental reports and sensitization. Latent class growth analysis identified longitudinal patterns. RESULTS Three similar patterns of egg sensitization (persistent, early-onset remitting, and no/low grade classes) were identified in both cohorts, with differing prevalence estimates. The proportion of children with egg allergy in the persistent class at 7 or 8 years of age was 23% (CHIBA) and 20% (MAAS). Consistently in both cohorts, FLG mutations were significantly associated only with the persistent class. Children with FLG mutations had an approximately four-fold increased risk of being in the persistent sensitization class (RRRs: 4.3, 95%C.I. (1.2-16.0), p = .03 in CHIBA; 4.3 (1.3-14.7), p = .02 in MAAS). CONCLUSION FLG loss-of-function mutations are associated with persistent egg sensitization in both Japanese and European ethnicities, and the mutations might be a potential biomarker for identifying the risk of persistent egg sensitization/allergy in early infancy. Future studies should incorporate oral food challenges to confirm this relationship.
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Affiliation(s)
| | - Taiji Nakano
- Department of Pediatrics, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Angela Simpson
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Michihiro Kono
- Department of Dermatology and Plastic Surgery, Akita University Graduate School of Medicine, Akita, Japan
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - John A Curtin
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Tomoko Kobayashi
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Clare S Murray
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Masashi Akiyama
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | | | - Adnan Custovic
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Naoki Shimojo
- Department of Pediatrics, Graduate School of Medicine, Chiba University, Chiba, Japan
- Center for Preventive Medical Sciences, Chiba University, Chiba, Japan
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Xie W, Zhou J. Regulation of mitotic spindle orientation during epidermal stratification. J Cell Physiol 2017; 232:1634-1639. [DOI: 10.1002/jcp.25750] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 12/16/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Wei Xie
- Key Laboratory of Animal Resistance Biology of Shandong Province; Institute of Biomedical Sciences; College of Life Sciences; Shandong Normal University; Jinan Shandong China
| | - Jun Zhou
- Key Laboratory of Animal Resistance Biology of Shandong Province; Institute of Biomedical Sciences; College of Life Sciences; Shandong Normal University; Jinan Shandong China
- State Key Laboratory of Medicinal Chemical Biology; Key Laboratory of Bioactive Materials of the Ministry of Education; College of Life Sciences; Nankai University; Tianjin China
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