The Role of TGF-β in the Association Between Primary Graft Dysfunction and Bronchiolitis Obliterans Syndrome.

Published

Journal Article

Primary graft dysfunction (PGD) is a possible risk factor for bronchiolitis obliterans syndrome (BOS) following lung transplantation; however, the mechanism for any such association is poorly understood. Based on the association of TGF-β with acute and chronic inflammatory disorders, we hypothesized that it might play a role in the continuum between PGD and BOS. Thus, the association between PGD and BOS was assessed in a single-center cohort of lung transplant recipients. Bronchoalveolar lavage fluid concentrations of TGF-β and procollagen collected within 24 h of transplantation were compared across the spectrum of PGD, and incorporated into Cox models of BOS. Immunohistochemistry localized expression of TGF-β and its receptor in early lung biopsies posttransplant. We found an association between PGD and BOS in both bilateral and single lung recipients with a hazard ratio of 3.07 (95% CI 1.76-5.38) for the most severe form of PGD. TGF-β and procollagen concentrations were elevated during PGD (p < 0.01), and associated with increased rates of BOS. Expression of TGF-β and its receptor localized to allograft infiltrating mononuclear and stromal cells, and the airway epithelium. These findings validate the association between PGD and the subsequent development of BOS, and suggest that this association may be mediated by receptor/TGF-β biology.

Full Text

Duke Authors

Cited Authors

  • DerHovanessian, A; Weigt, SS; Palchevskiy, V; Shino, MY; Sayah, DM; Gregson, AL; Noble, PW; Palmer, SM; Fishbein, MC; Kubak, BM; Ardehali, A; Ross, DJ; Saggar, R; Lynch, JP; Elashoff, RM; Belperio, JA

Published Date

  • February 2016

Published In

Volume / Issue

  • 16 / 2

Start / End Page

  • 640 - 649

PubMed ID

  • 26461171

Pubmed Central ID

  • 26461171

Electronic International Standard Serial Number (EISSN)

  • 1600-6143

Digital Object Identifier (DOI)

  • 10.1111/ajt.13475

Language

  • eng

Conference Location

  • United States