Abstract
It has been a long-standing dogma that host sensitization against fully-vascularized organ allografts occurs peripherally within the graft itself. In this report we show that donor-derived MHC class II-positive (Ia+) DL migrate rapidly out of mouse cardiac allografts into the recipients' spleens where they home to the peripheral white pulp and associate predominantly with CD4+ T lymphocytes. This provides a novel route for central sensitization against fully vascularized allografts, and most likely represents a pathway by which immune responses are generated against antigens on blood-borne DL emigrating from peripheral tissues.
MeSH Terms
Animals
Antibodies, Monoclonal
Antigen-Presenting Cells/immunology,physiology
Blood Volume
Cell Movement
Fluorescent Antibody Technique
Graft Rejection
Heart Transplantation/immunology,physiology
Male
Mice
Mice, Inbred BALB C
Mice, Inbred C3H
Mice, Inbred C57BL
Mice, Inbred CBA
Spleen/immunology
Transplantation, Homologous
Chemicals
Antibodies, Monoclonal
Authors & Affiliations
3 authors, click to expand affiliations / ORCID
Larsen C P
Nuffield Department of Surgery, University of Oxford, John Radcliffe Hospital, United Kingdom.
Morris P J
Austyn J M
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