Immunosuppressive effect of monoclonal antibodies to ICAM‐1 and LFA‐1 on peripheral nerve allograft in mice

Yasushi Nakao, Susan E. Mackinnon, Suzanne R. Strasberg, M. Catherine Hertl, Mitsuaki Isobe, Brian M. Susskind, T. Mohanakumar, Daniel A. Hunter

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13 Scopus citations


This study evaluated the immunosuppressive effect of monoclonal antibodies against cell surface molecules in a murine peripheral nerve allograft model. After nerve allografting, 18 recipients were treated with both anti‐intercellular adhesion molecule‐1 (ICAM‐1) and anti‐lymphocyte function‐associated molecule‐1 (LFA‐1) monoclonal antibodies in low or high dose. Nerve allografts were harvested at 8 weeks for histologic and morphometric evaluation. Recipients were subsequently challenged with skin grafts at 9 weeks and a cytotoxic assay at 12 weeks. The majority of the antibody‐treated allografts (13 of 18) showed excellent regeneration comparable to the autografts with preservation of the normal nerve architecture and scant cellular infiltrate. All untreated allografts demonstrated severe structural disorganization with cellular infiltrate consistent with acute rejection. In the high dose group, the mean skin graft survival time from nerve donor mice, but not third‐party mice, was significantly prolonged. (17.5 vs. 11.3 days). Similarly, the cytotoxic activity against nerve donor alloantigen was significantly suppressed. These preliminary findings suggest that antibody therapy alone can facilitate nerve regeneration in a murine nerve allograft model. © 1995 Wiley‐Liss, Inc.

Original languageEnglish
Pages (from-to)612-620
Number of pages9
Issue number9
StatePublished - 1995

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