PMID- 35042317 OWN - NLM STAT- MEDLINE DCOM- 20220517 LR - 20220716 IS - 1998-4049 (Electronic) IS - 1319-3767 (Print) IS - 1319-3767 (Linking) VI - 28 IP - 3 DP - 2022 May-Jun TI - Serum levels of soluble HLA-G correlate with disease activity in pediatric patients with Crohn's disease. PG - 233-238 LID - 10.4103/sjg.sjg_327_21 [doi] AB - BACKGROUND: Human leukocyte antigen (HLA)-G, a member of the HLA family, is crucial for fetomaternal tolerance. Transmembrane or circulating/soluble HLA-G (sHLA-G) is elevated in autoimmune conditions and the tumor microenvironment. Circulating sHLA-G levels and their association with disease activity have not yet been assessed in pediatric patients with inflammatory bowel disease (IBD). This study aimed to quantify the serum sHLA-G levels of pediatric patients with IBD and assess the association of serum sHLA-G with disease activity. METHODS: : We enrolled 24 pediatric IBD patients Crohn's disease (CD) and ulcerative colitis (UC), n = 12 each] and 24 healthy controls. Based on the disease activity index, five and seven of the CD patients had mild and moderate/severe disease, respectively, whereas six of the UC patients were in remission and six had mild disease. Serum was collected and sHLA-G levels were determined by enzyme-linked immunosorbent assay (ELISA). RESULTS: : Pediatric patients with CD had significantly higher sHLA-G levels compared with patients with UC and healthy controls. Notably, serum sHLA-G levels were significantly higher in patients with moderate/severe CD than in those with mild CD. CONCLUSIONS: : Serum sHLA-G levels correlate with disease activity in pediatric patients with CD and are higher in CD patients than in UC patients. Thus, sHLA-G is a potential biomarker for disease activity in CD. FAU - Cansever, Murat AU - Cansever M AD - Department of Pediatrics, Division of Immunology, School of Medicine, Erciyes University, Kayseri, Turkey. FAU - Goktas, Mehmet Akif AU - Goktas MA AD - Department of Pediatrics, Division of Gastroenterology, School of Medicine, Hacettepe University, Kayseri, Turkey. FAU - Arslan, Duran AU - Arslan D AD - Department of Pediatrics, Division of Gastroenterology, School of Medicine, Erciyes University, Kayseri, Turkey. FAU - Patiroglu, Turkan AU - Patiroglu T AD - Department of Pediatrics, Division of Immunology, School of Medicine, Erciyes University, Kayseri, Turkey. LA - eng PT - Journal Article PL - India TA - Saudi J Gastroenterol JT - Saudi journal of gastroenterology : official journal of the Saudi Gastroenterology Association JID - 9516979 RN - 0 (HLA-G Antigens) RN - Pediatric Crohn's disease SB - IM MH - Child MH - *Colitis, Ulcerative MH - *Crohn Disease/pathology MH - HLA-G Antigens MH - Humans MH - *Inflammatory Bowel Diseases PMC - PMC9212116 OTO - NOTNLM OT - Crohn's disease OT - HLA-G antigens OT - ulcerative colitis COIS- None EDAT- 2022/01/20 06:00 MHDA- 2022/05/18 06:00 PMCR- 2022/01/12 CRDT- 2022/01/19 01:53 PHST- 2022/01/20 06:00 [pubmed] PHST- 2022/05/18 06:00 [medline] PHST- 2022/01/19 01:53 [entrez] PHST- 2022/01/12 00:00 [pmc-release] AID - 335633 [pii] AID - SJG-28-233 [pii] AID - 10.4103/sjg.sjg_327_21 [doi] PST - ppublish SO - Saudi J Gastroenterol. 2022 May-Jun;28(3):233-238. doi: 10.4103/sjg.sjg_327_21.