Impact of MHC class II incompatibility on localization of mononuclear cell infiltrates to the bronchiolar compartment of orthotopic lung allografts

Shinji Nakashima, T. Rinda Soong, Karen Fox-Talbot, Zhiping Qian, Salma Rahimi, Barbara A. Wasowska, Charles A Rohde, Sabrina Chen, Joe G N Garcia, William M. Baldwin

Research output: Contribution to journalArticle

Abstract

Chronic pathological changes in transplanted lungs are unique because they center on the airways. We examined the relative role of MHC class I and II antigens in causing bronchial pathology in orthotopic lung transplants to rats maintained on cyclosporin A (CsA). Transplants mismatched for MHC class II antigens had significantly more peri-bronchiolar infiltrates than MHC class I incompatible transplants. No significant increase in infiltrates was found in lung transplants incompatible for MHC class I plus II antigens compared to MHC class II antigens alone. Immunohistochemistry demonstrated that MHC class II antigen expression was confined to macrophages in MHC class I incompatible transplants, but was upregulated on bronchial epithelium in transplants with MHC class II incompatibilities. Vascular endothelium was notably devoid of MHC class II antigen expression in all transplants. However, both peri-bronchial and peri-vascular infiltrates were frequently cuffed by alveolar macrophages and type II pneumocytes that expressed MHC class II antigens. PCR analysis demonstrated that IFN-γ and regulated on activation, normal T cells expressed and secreted (RANTES) were upregulated in MHC class II incompatible transplants. Thus, MHC class II incompatible orthotopic lung transplants in rats maintained on CsA immunosuppression undergo a bronchiolcentric upregulation of alloantigens.

Original languageEnglish (US)
Pages (from-to)694-701
Number of pages8
JournalAmerican Journal of Transplantation
Volume5
Issue number4 I
DOIs
StatePublished - Apr 2005

Fingerprint

Allografts
Histocompatibility Antigens Class II
Transplants
Lung
Cyclosporine
Alveolar Epithelial Cells
Histocompatibility Antigens Class I
Isoantigens
Vascular Endothelium
Alveolar Macrophages
Immunosuppression
Blood Vessels
Up-Regulation
Epithelium
Immunohistochemistry
Macrophages
Pathology
T-Lymphocytes
Antigens
Polymerase Chain Reaction

Keywords

  • Bronchiole
  • Interferon
  • Lung transplant
  • MHC class II
  • RANTES

ASJC Scopus subject areas

  • Immunology

Cite this

Impact of MHC class II incompatibility on localization of mononuclear cell infiltrates to the bronchiolar compartment of orthotopic lung allografts. / Nakashima, Shinji; Soong, T. Rinda; Fox-Talbot, Karen; Qian, Zhiping; Rahimi, Salma; Wasowska, Barbara A.; Rohde, Charles A; Chen, Sabrina; Garcia, Joe G N; Baldwin, William M.

In: American Journal of Transplantation, Vol. 5, No. 4 I, 04.2005, p. 694-701.

Research output: Contribution to journalArticle

Nakashima, Shinji ; Soong, T. Rinda ; Fox-Talbot, Karen ; Qian, Zhiping ; Rahimi, Salma ; Wasowska, Barbara A. ; Rohde, Charles A ; Chen, Sabrina ; Garcia, Joe G N ; Baldwin, William M. / Impact of MHC class II incompatibility on localization of mononuclear cell infiltrates to the bronchiolar compartment of orthotopic lung allografts. In: American Journal of Transplantation. 2005 ; Vol. 5, No. 4 I. pp. 694-701.
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