Distribution of class I and II human leukocyte antigens in the larynx.
OBJECTIVE
To examine the antigenic distribution of human leukocyte antigens (HLA) of the human larynx.


METHODS
Twelve human larynges were examined for Class I (HLA-A, -B, -C) and Class II (HLA-DR) histocompatibility antigens using mouse monoclonal antibodies in an indirect immunoperoxidase assay. Structures of the larynx and surrounding tissues were examined and given a semiquantitative score based on HLA Class I and II expression.


RESULTS
The mucosal surface epithelium of the larynx stains 2+ or stronger for HLA Class I antigens and 1+ for Class II antigens. The deeper submucosal glands stain 1+ for Class I antigens and 2+ or stronger for Class II antigens. Thyroid cartilage showed 2+ or stronger staining of the chondrocytes for Class I antigens only. Thyroid follicular cells also stain only for Class I antigens. Perichondrium and Schwann cells of nerves stain stronger for Class I antigens than Class II antigens. Cartilage matrix, muscle cells, and axons of nerves do not stain for either class of antigens. Endothelium stains 3+ for both classes of antigens.


CONCLUSIONS
The detailed distribution of major transplantation antigens in the human larynx is elucidated. Class II antigens implicated as initiators of organ transplant rejection were primarily found in 6 areas: mucosal surface epithelium, submucosal glands, ducts, vascular endothelium, perichondrium, and Schwann cells of nerves. The relevance of these findings to the initiation and detection of laryngeal allograft graft rejection is discussed.
Wang
Edward C
EC
Department of Surgery, Division of Head and Neck Surgery, David Geffen School of Medicine at UCLA Los Angeles, Los Angeles, CA, USA.
Damrose
Edward J
EJ
Mendelsohn
Abie H
AH
Nelson
Scott D
SD
Shintaku
I Peter
IP
Ye
Ming
M
Berke
Gerald S
GS
Blackwell
Keith E
KE
D004730:Endothelium, Vascular / Q000378:metabolism; D006084:Graft Rejection / Q000378:metabolism; D006680:HLA Antigens / Q000378:metabolism*; D015234:HLA-A Antigens / Q000378:metabolism; D015235:HLA-B Antigens / Q000378:metabolism; D015236:HLA-C Antigens / Q000378:metabolism; D006684:HLA-DR Antigens / Q000378:metabolism; D006801:Humans; D007150:Immunohistochemistry; D007820:Laryngeal Mucosa / Q000378:metabolism*; D007830:Larynx / Q000637:transplantation; D012009:Recurrent Laryngeal Nerve / Q000378:metabolism; D012583:Schwann Cells / Q000378:metabolism
D006680:HLA Antigens; D015234:HLA-A Antigens; D015235:HLA-B Antigens; D015236:HLA-C Antigens; D006684:HLA-DR Antigens