Prospective assessment of serum periostin as a biomarker for diagnosis and monitoring of eosinophilic oesophagitis.
Aliment Pharmacol Ther
; 44(2): 189-97, 2016 07.
Article
in En
| MEDLINE
| ID: mdl-27193351
BACKGROUND: Periostin is highly expressed in eosinophilic oesophagitis (EoE), but has not been extensively studied as a non-invasive biomarker. AIM: To assess whether serum periostin distinguished EoE from controls at baseline, had utility for monitoring treatment response, or was associated with IL-13 levels. METHODS: This was a sub-analysis of a prospective cohort study of adults undergoing out-patient upper endoscopy. Incident cases of EoE were diagnosed per consensus guidelines. Controls were subjects with either GERD or dysphagia without EoE. EoE patients were treated with swallowed/topical steroids and had repeat endoscopy/biopsy. Serum periostin levels for cases and controls were compared at baseline, and pre/post-treatment levels were compared for cases. Serum IL-13 and tissue expression of periostin were also assessed. RESULTS: A total of 61 incident EoE cases and 87 controls were analysed. Despite a marked increase in tissue periostin expression in cases, the median baseline serum periostin level was only slightly higher in cases than controls (22.1 ng/mL vs. 20.7; P = 0.04); there was no change in post-treatment levels. There was also no difference in serum periostin for cases by histologic response or atopic status. There was a strong trend towards higher serum IL-13 levels in cases in the highest periostin quartile (57.1 pg/mL vs. 2.6; P = 0.07). CONCLUSIONS: Serum periostin levels were similar in cases and controls, and there were no changes post-treatment. Given elevated IL-13 levels in the EoE patients with the highest periostin levels, future studies could explore periostin as a biomarker in EoE, perhaps in the setting of anti-IL-13 therapy.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Cell Adhesion Molecules
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Interleukin-13
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Eosinophilic Esophagitis
Type of study:
Diagnostic_studies
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Guideline
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Observational_studies
Limits:
Adult
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Female
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Humans
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Male
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Middle aged
Language:
En
Journal:
Aliment Pharmacol Ther
Year:
2016
Document type:
Article