CINECA IRIS Institutional Research Information System
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishHuman leukocyte antigen G (HLA-G) expression is thought to be associated with a tolerance state following solid organ transplantation.In a lung transplant (LTx) recipient cohort, we assessed (1) the role of HLA-G expression as a predictor of graft acceptance, and (2) the relationship between (i) graft and peripheral HLA-G expression, (ii) HLA-G expression and humoral immunity and (iii) HLA-G expression and lung microenvironment.We prospectively enrolled 63 LTx recipients (median follow-up 3.26 years [min: 0.44-max: 5.03]).At 3 and 12 months post-LTx, we analyzed graft HLA-G expression by immunohistochemistry, plasma soluble HLA-G (sHLA-G) level by enzyme-linked immunosorbent assay, bronchoalveolar lavage fluid (BALF) levels of cytokines involved in chronic lung allograft dysfunction (CLAD) and anti-HLA antibodies (Abs) in serum.In a time-dependent Cox model, lung HLA-G expression had a protective effect on CLAD occurrence (hazard ratio: 0.13 [0.03-0.58]; p = 0.008).The same results were found when computing 3-month and 1-year conditional freedom from CLAD (p = 0.03 and 0.04, respectively [log-rank test]).Presence of anti-HLA Abs was inversely associated with graft HLA-G expression (p = 0.02).Increased BALF level of transforming growth factor-β was associated with high plasma sHLA-G level (p = 0.02).In conclusion, early graft HLA-G expression in LTx recipients with a stable condition was associated with graft acceptance in the long term.
| Data di pubblicazione: | 2015 | |
| Titolo: | Role of HLA-G as a predictive marker of low risk of chronic rejection in lung transplant recipients: A clinical prospective study | |
| Autori: | Brugière, O.; Thabut, G.; Krawice Radanne, I.; Rizzo, Roberta; Dauriat, G.; Danel, C.; Suberbielle, C.; Mal, H.; Stern, M.; Schilte, C.; Pretolani, M.; Carosella, E. D.; Rouas Freiss, N. | |
| Rivista: | AMERICAN JOURNAL OF TRANSPLANTATION | |
| Keywords: | Bronchiolitis obliterans (BOS); clinical research/practice; clinical trial; immune regulation; immunobiology; lung (allograft) function/dysfunction; lung transplantation/pulmonology; tolerance; translational research/science; Adult; Biomarkers; Bronchoalveolar Lavage Fluid; Cohort Studies; Female; Graft Rejection; HLA-G Antigens; Humans; Kaplan-Meier Estimate; Male; Middle Aged; Predictive Value of Tests; Prospective Studies; Risk Factors; Time Factors; Transforming Growth Factor beta; Lung Transplantation; Transplant Recipients; Transplantation | |
| Abstract in inglese: | Human leukocyte antigen G (HLA-G) expression is thought to be associated with a tolerance state following solid organ transplantation.In a lung transplant (LTx) recipient cohort, we assessed (1) the role of HLA-G expression as a predictor of graft acceptance, and (2) the relationship between (i) graft and peripheral HLA-G expression, (ii) HLA-G expression and humoral immunity and (iii) HLA-G expression and lung microenvironment.We prospectively enrolled 63 LTx recipients (median follow-up 3.26 years [min: 0.44-max: 5.03]).At 3 and 12 months post-LTx, we analyzed graft HLA-G expression by immunohistochemistry, plasma soluble HLA-G (sHLA-G) level by enzyme-linked immunosorbent assay, bronchoalveolar lavage fluid (BALF) levels of cytokines involved in chronic lung allograft dysfunction (CLAD) and anti-HLA antibodies (Abs) in serum.In a time-dependent Cox model, lung HLA-G expression had a protective effect on CLAD occurrence (hazard ratio: 0.13 [0.03-0.58]; p = 0.008).The same results were found when computing 3-month and 1-year conditional freedom from CLAD (p = 0.03 and 0.04, respectively [log-rank test]).Presence of anti-HLA Abs was inversely associated with graft HLA-G expression (p = 0.02).Increased BALF level of transforming growth factor-β was associated with high plasma sHLA-G level (p = 0.02).In conclusion, early graft HLA-G expression in LTx recipients with a stable condition was associated with graft acceptance in the long term. | |
| Digital Object Identifier (DOI): | 10.1111/ajt.12977 | |
| Handle: | http://hdl.handle.net/11392/2354836 | |
| Appare nelle tipologie: | 03.1 Articolo su rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Brugi-re_et_al-2015-American_Journal_of_Transplantation.pdf | versione editoriale | Full text (versione editoriale) | PUBBLICO - Pubblico con Copyright | Open Access Visualizza/Apri |
Copyright © 2022