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Published on: February 18, 2015
Recurrent Enteritis and Intestinal Obstruction in a Patient with Chronic Mucocutaneous Candidiasis due to STAT1
Mingfen Luo1,2, Huan Huang1,3, Hanhui Nie1
1Dermatology Hospital, Southern Medical University, Guangzhou, China.
Abstract:
We presented a case of chronic mucocutaneous candidiasis (CMC) due to STAT1 GOF mutation with recurrent enteritis and intestinal obstruction. A 33-year-old woman complained of recurrent oral erosion and finger (toe) nails damage for over 30 years. Candida albicans were cultured from the oral mucosa and nails. Sanger sequencing revealed a gain-of-function mutation in STAT1 (c.A1159 G, p.T387A). Since the age of 37, she developed recurrent enteritis and intestinal obstruction. Laboratory examinations revealed an increased pSTAT1 protein expression and a decreased proportion of Th17 cells in peripheral blood lymphocyte (PBMC), with a high expression of pSTAT1 and scarce expression of IL17A observed in intestinal immunohistochemistry. Intestinal obstruction had not previously been reported as the main clinical manifestation in STAT1 GOF patients. We speculated that the low levels of IL17A impaired the intestinal barrier, which might lead to gastrointestinal disorders in this patient. This case expanded the clinical phenotype of heterozygous STAT1 GOF patients.
Insights
This study details a rare case of chronic mucocutaneous candidiasis linked to a STAT1 gain-of-function (GOF) mutation, presenting with unusual intestinal obstruction. The findings highlight a potential new clinical manifestation of STAT1 GOF.
Area of Science:
- Immunology
- Genetics
- Gastroenterology
Background:
- Chronic mucocutaneous candidiasis (CMC) is often associated with immune dysregulation.
- Signal transducer and activator of transcription 1 (STAT1) gain-of-function (GOF) mutations can lead to various immune deficiencies.
- Gastrointestinal manifestations in STAT1 GOF patients are less commonly reported.
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