Esophageal epithelial immunoglobulin G is an important marker for the diagnosis and management of pediatric eosinophilic esophagitis

Abstract Background and Aim Our primary aim was to describe the prevalence of immunoglobulin G (IgG) and its subclass IgG4 in immunohistochemistry staining in esophageal biopsy specimens of children with eosinophilic esophagitis (EoE) compared with that of specimens from children with gastroesophage...

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Main Authors: Syed Ahsan Rizvi, Chukwuemeka Oriala, Laura E Irastorza, Jeffrey Bornstein, Shuan Li, Yamen Smadi
Format: Article
Language:English
Published: Wiley 2022-06-01
Series:JGH Open
Subjects:
Online Access:https://doi.org/10.1002/jgh3.12752
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author Syed Ahsan Rizvi
Chukwuemeka Oriala
Laura E Irastorza
Jeffrey Bornstein
Shuan Li
Yamen Smadi
author_facet Syed Ahsan Rizvi
Chukwuemeka Oriala
Laura E Irastorza
Jeffrey Bornstein
Shuan Li
Yamen Smadi
author_sort Syed Ahsan Rizvi
collection DOAJ
description Abstract Background and Aim Our primary aim was to describe the prevalence of immunoglobulin G (IgG) and its subclass IgG4 in immunohistochemistry staining in esophageal biopsy specimens of children with eosinophilic esophagitis (EoE) compared with that of specimens from children with gastroesophageal reflux disease (GERD). Methods Esophageal biopsy specimens from children with EoE or GERD were stained prospectively for IgG and IgG4 antibodies. Subjects with EoE were divided into cohorts with either active EoE or EoE in remission. Active EoE cases were further divided into proton pump inhibitor responsive (PPI‐r) and PPI‐nonresponsive (PPI‐nr) subgroups. Demographic, clinical, and histologic data were compared among groups, including quantified IgG and IgG4 staining, peak eosinophil count, eosinophil‐derived neurotoxin levels, and EoE endoscopic reference score. Results Seventy‐nine children (aged 10.6 ± 5.6 years; 68% male) were enrolled. IgG‐positive cell counts were significantly elevated in those with active EoE (n = 29, 3 [interquartile range, IQR: 2–6]/high‐powered field [HPF]), compared with those having EoE remission (n = 25, 1 [IQR: 0–2]/HPF; P = 0.002) and those with GERD (n = 25, 0 [IQR: 0–0.25]/HPF, P = <0.0001). IgG‐positive cell counts were significantly higher in the PPI‐r (n = 15, 5 [IQR: 2.5–11]/HPF) subgroup, compared with the PPI‐nr subgroup (n = 11, 3 [IQR: 1.5–3.5]/HPF; P = 0.041) at baseline endoscopy. Conclusion Initial esophageal tissue biopsy specimens from pediatric subjects with active EoE showed a significant increase in IgG‐positive staining compared with tissue from subjects in EoE remission or with GERD. There was higher positivity of IgG‐stained cells in the PPI‐r subgroup compared with the PPI‐nr subgroup.
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spelling doaj.art-97c9887381cf40809c9317f2650f90362022-12-22T02:38:00ZengWileyJGH Open2397-90702022-06-016640240710.1002/jgh3.12752Esophageal epithelial immunoglobulin G is an important marker for the diagnosis and management of pediatric eosinophilic esophagitisSyed Ahsan Rizvi0Chukwuemeka Oriala1Laura E Irastorza2Jeffrey Bornstein3Shuan Li4Yamen Smadi5Center for Digestive Health and Nutrition Arnold Palmer Hospital for Children Orlando Florida USADepartment of Pathology Orlando Health Orlando Florida USACenter for Digestive Health and Nutrition Arnold Palmer Hospital for Children Orlando Florida USACenter for Digestive Health and Nutrition Arnold Palmer Hospital for Children Orlando Florida USADepartment of Pathology Orlando Health Orlando Florida USACenter for Digestive Health and Nutrition Arnold Palmer Hospital for Children Orlando Florida USAAbstract Background and Aim Our primary aim was to describe the prevalence of immunoglobulin G (IgG) and its subclass IgG4 in immunohistochemistry staining in esophageal biopsy specimens of children with eosinophilic esophagitis (EoE) compared with that of specimens from children with gastroesophageal reflux disease (GERD). Methods Esophageal biopsy specimens from children with EoE or GERD were stained prospectively for IgG and IgG4 antibodies. Subjects with EoE were divided into cohorts with either active EoE or EoE in remission. Active EoE cases were further divided into proton pump inhibitor responsive (PPI‐r) and PPI‐nonresponsive (PPI‐nr) subgroups. Demographic, clinical, and histologic data were compared among groups, including quantified IgG and IgG4 staining, peak eosinophil count, eosinophil‐derived neurotoxin levels, and EoE endoscopic reference score. Results Seventy‐nine children (aged 10.6 ± 5.6 years; 68% male) were enrolled. IgG‐positive cell counts were significantly elevated in those with active EoE (n = 29, 3 [interquartile range, IQR: 2–6]/high‐powered field [HPF]), compared with those having EoE remission (n = 25, 1 [IQR: 0–2]/HPF; P = 0.002) and those with GERD (n = 25, 0 [IQR: 0–0.25]/HPF, P = <0.0001). IgG‐positive cell counts were significantly higher in the PPI‐r (n = 15, 5 [IQR: 2.5–11]/HPF) subgroup, compared with the PPI‐nr subgroup (n = 11, 3 [IQR: 1.5–3.5]/HPF; P = 0.041) at baseline endoscopy. Conclusion Initial esophageal tissue biopsy specimens from pediatric subjects with active EoE showed a significant increase in IgG‐positive staining compared with tissue from subjects in EoE remission or with GERD. There was higher positivity of IgG‐stained cells in the PPI‐r subgroup compared with the PPI‐nr subgroup.https://doi.org/10.1002/jgh3.12752eosinophil‐derived neurotoxineosinophilic esophagitisgastroesophageal reflux diseaseimmunoglobulin Gimmunoglobulin G4immunohistochemistry
spellingShingle Syed Ahsan Rizvi
Chukwuemeka Oriala
Laura E Irastorza
Jeffrey Bornstein
Shuan Li
Yamen Smadi
Esophageal epithelial immunoglobulin G is an important marker for the diagnosis and management of pediatric eosinophilic esophagitis
JGH Open
eosinophil‐derived neurotoxin
eosinophilic esophagitis
gastroesophageal reflux disease
immunoglobulin G
immunoglobulin G4
immunohistochemistry
title Esophageal epithelial immunoglobulin G is an important marker for the diagnosis and management of pediatric eosinophilic esophagitis
title_full Esophageal epithelial immunoglobulin G is an important marker for the diagnosis and management of pediatric eosinophilic esophagitis
title_fullStr Esophageal epithelial immunoglobulin G is an important marker for the diagnosis and management of pediatric eosinophilic esophagitis
title_full_unstemmed Esophageal epithelial immunoglobulin G is an important marker for the diagnosis and management of pediatric eosinophilic esophagitis
title_short Esophageal epithelial immunoglobulin G is an important marker for the diagnosis and management of pediatric eosinophilic esophagitis
title_sort esophageal epithelial immunoglobulin g is an important marker for the diagnosis and management of pediatric eosinophilic esophagitis
topic eosinophil‐derived neurotoxin
eosinophilic esophagitis
gastroesophageal reflux disease
immunoglobulin G
immunoglobulin G4
immunohistochemistry
url https://doi.org/10.1002/jgh3.12752
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AT lauraeirastorza esophagealepithelialimmunoglobulingisanimportantmarkerforthediagnosisandmanagementofpediatriceosinophilicesophagitis
AT jeffreybornstein esophagealepithelialimmunoglobulingisanimportantmarkerforthediagnosisandmanagementofpediatriceosinophilicesophagitis
AT shuanli esophagealepithelialimmunoglobulingisanimportantmarkerforthediagnosisandmanagementofpediatriceosinophilicesophagitis
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