Leu 7(HNK-1),a glycoprotein,is a specific antigen presented on the surfaceof human natural killer cells and killer cells.In this study ABC immunostaining with spe-cific monoclonal antibody to Leu 7 was used to detect ...Leu 7(HNK-1),a glycoprotein,is a specific antigen presented on the surfaceof human natural killer cells and killer cells.In this study ABC immunostaining with spe-cific monoclonal antibody to Leu 7 was used to detect the expression of Leu 7 in humanlung.The results demonstrated that the Leu 7 immunoreactivity was localized in theneuroepithelial bodies(NEB)and neuroendocrine cells(NEC)of the human lung.In addi-tion,the anti-Leu 7 monoclonal antibody stained the nerve fibers in the wall of theintrapulmonary bronchi.Adjacent sections immunostained with antibodies to Leu 7 and5-hydroxytryptamin(5-HT)or calcitonin gene-related peptide(CGRP)proved thecoexistence of Leu 7 and CGRP or 5-HT in endocrine cells.The CGRP immunoreactivenerve fibers also showed positive staining with the monoclonal antibody to Leu 7.Ourfindings support the hypothesis that the nervous and endocrine systems share some com-mon antigenic determinants with the immune system.展开更多
文摘Leu 7(HNK-1),a glycoprotein,is a specific antigen presented on the surfaceof human natural killer cells and killer cells.In this study ABC immunostaining with spe-cific monoclonal antibody to Leu 7 was used to detect the expression of Leu 7 in humanlung.The results demonstrated that the Leu 7 immunoreactivity was localized in theneuroepithelial bodies(NEB)and neuroendocrine cells(NEC)of the human lung.In addi-tion,the anti-Leu 7 monoclonal antibody stained the nerve fibers in the wall of theintrapulmonary bronchi.Adjacent sections immunostained with antibodies to Leu 7 and5-hydroxytryptamin(5-HT)or calcitonin gene-related peptide(CGRP)proved thecoexistence of Leu 7 and CGRP or 5-HT in endocrine cells.The CGRP immunoreactivenerve fibers also showed positive staining with the monoclonal antibody to Leu 7.Ourfindings support the hypothesis that the nervous and endocrine systems share some com-mon antigenic determinants with the immune system.
