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Tytuł pozycji:

Increased HLA-G Expression in Tissue-Infiltrating Cells in Inflammatory Bowel Diseases.

Tytuł:
Increased HLA-G Expression in Tissue-Infiltrating Cells in Inflammatory Bowel Diseases.
Autorzy:
da Costa Ferreira S; Division of Gastroenterology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, SP, 14049-900, Brazil. .
Sadissou IA; Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
Parra RS; Division of Coloproctology, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
Feitosa MR; Division of Coloproctology, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
Neto FSL; Molecular Biology Laboratory, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
Pretti da Cunha Tirapelli D; Molecular Biology Laboratory, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
Ramalho LNZ; Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
Féres O; Division of Coloproctology, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
da Rocha JJR; Division of Coloproctology, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
Donadi EA; Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
de Almeida Troncon LE; Division of Gastroenterology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, SP, 14049-900, Brazil.
Źródło:
Digestive diseases and sciences [Dig Dis Sci] 2021 Aug; Vol. 66 (8), pp. 2610-2618. Date of Electronic Publication: 2020 Aug 24.
Typ publikacji:
Journal Article; Research Support, Non-U.S. Gov't
Język:
English
Imprint Name(s):
Publication: 2005- : New York, NY : Springer Science + Business Media
Original Publication: New York, Plenum Pub. Corp.
MeSH Terms:
Colitis, Ulcerative/*pathology
Crohn Disease/*pathology
Gene Expression Regulation/*immunology
HLA-G Antigens/*metabolism
Adolescent ; Adult ; Female ; HLA-G Antigens/genetics ; Humans ; Inflammation ; Intestinal Mucosa/pathology ; Male ; Middle Aged ; Young Adult
References:
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Contributed Indexing:
Keywords: Crohn’s disease; HLA-G; Inflammatory bowel disease; Inflammatory cells; Ulcerative colitis
Substance Nomenclature:
0 (HLA-G Antigens)
Entry Date(s):
Date Created: 20200826 Date Completed: 20210922 Latest Revision: 20210922
Update Code:
20240105
DOI:
10.1007/s10620-020-06561-3
PMID:
32839905
Czasopismo naukowe
Background: Since HLA-G is an immune checkpoint molecule and since Crohn's disease (CD) and ulcerative colitis (UC) exhibit deregulated immune-mediated mechanisms, we aimed to evaluate intestinal HLA-G expression and soluble HLA-G (sHLA-G) levels in CD/UC patients stratified according to the CD phenotype/localization and UC extension.
Methods: HLA-G tissue expression was assessed by immunohistochemistry in biopsies collected from 151 patients (90 CD, 61 UC) and in surgical resection specimens (28 CD, 12 UC). Surgical material from 24 healthy controls was also assessed. Plasma sHLA-G levels (97 CD, 81 UC, and 120 controls) were evaluated using ELISA.
Results: HLA-G expression was similarly observed in the intestinal epithelial cells of control and CD/UC specimens. However, in biopsies, the plasma cells/lymphocytes infiltrating the lamina propria in CD/UC presented (1) increased HLA-G expression compared to controls (P < 0.0001), (2) greater cell staining in UC cells than in CD cells irrespective of disease extent (P = 0.0011), and (3) an increased number of infiltrating cells in the inflammatory CD phenotype compared to that in the stenosing and fistulizing phenotypes (P = 0.0407). In surgical specimens, CD/UC patients exhibited higher infiltrating cell HLA-G expression in lesion areas than in margins. sHLA-G levels were higher in UC/CD patients (P < 0.0001) than in controls, but no difference was observed between diseases.
Conclusions: Increased infiltrating cell HLA-G expression associated with increased sHLA-G levels in CD/UC patients may reflect ongoing host strategies to suppress chronic inflammation.
(© 2020. Springer Science+Business Media, LLC, part of Springer Nature.)

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