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Chronic Enteropathy Associated with SLCO2A1 Gene.

Junji Umeno1, Motohiro Esaki2, Keiichi Uchida3

  • 1Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.

Inflammatory Intestinal Diseases
|July 28, 2025
PubMed
Summary

Chronic enteropathy associated with SLCO2A1 gene (CEAS) causes intestinal ulcers, anemia, and hypoproteinemia. Diagnosis involves genetic testing and imaging, with current treatments focusing on symptom management due to a lack of definitive therapies.

Keywords:
Chronic anemiaChronic enteropathy associated with SLCO2A1 geneInflammatory bowel diseaseProstaglandin transporterSLCO2A1Small intestinal ulcers

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Area of Science:

  • Gastroenterology
  • Genetics
  • Rare Diseases

Background:

  • Chronic enteropathy associated with SLCO2A1 gene (CEAS) is a rare hereditary disorder.
  • Characterized by small intestinal ulcers, chronic anemia, and hypoproteinemia.
  • Distinct from typical autosomal recessive disorders, CEAS affects females predominantly and may present with extraintestinal manifestations.

Purpose of the Study:

  • To provide a comprehensive review of CEAS.
  • To emphasize newly established diagnostic protocols in Japan.
  • To summarize current understanding of epidemiology, pathogenesis, clinical features, diagnosis, and management.

Main Methods:

  • Review of existing literature on CEAS.
  • Emphasis on diagnostic criteria and genetic testing for SLCO2A1 mutations.
  • Discussion of symptomatic management and therapeutic interventions.

Main Results:

  • CEAS presents with small intestinal ulcers, iron deficiency anemia, and hypoproteinemia.
  • Elevated urinary prostaglandin metabolite levels are observed.
  • Genetic testing confirming SLCO2A1 mutations, especially c.940 + 1G>A, is crucial for diagnosis.

Conclusions:

  • CEAS should be suspected in patients with unexplained small intestinal ulcers, anemia, and hypoproteinemia.
  • Accurate diagnosis relies on genetic testing for SLCO2A1 mutations and small intestinal morphology assessment.
  • Current treatments are limited to symptomatic management and surgery, necessitating further research for effective therapies.