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Immune responses change in aging humans, but it is not known whether there is an age-associated change in the expressed B cell repertoire. We compared Ig VH cDNA libraries from circulating B cells of five elderly and three young human adults. As in young persons, nearly two-thirds of the cDNA...
The mdx mouse, an animal model of Duchenne muscular dystrophy, develops an X-linked recessive inflammatory myopathy. During onset of disease and height of myonecrosis, mdx mice also display important changes in the microenvironment of lymphoid tissues. Draining lymph nodes showed reduced...
Normally occurring and experimentally induced models of immunodeficiency indicate that B cell development and antibody production are influenced by genetic factors. It is highly likely that polymorphic variants in genes that encode receptors for growth and differentiation factors, signal...
CD27 is a member of the tumor necrosis factor receptor superfamily that is expressed primarily on T cells, as well as on subsets of B cells and NK cells. CD70, which is expressed on activated B and T cells, but not on resting lymphocytes, is a ligand for CD27. Cell surface CD27 can be...
Cell adhesion molecules are critical for the homing and migration of leukocytes into inflamed tissues. We investigated the role of ICAM-1 and LFA-1 in a previously described experimental model of ragweed (Rw)-induced allergic conjunctivitis. SWR/J mice were treated intraperitoneally 6 and 1 h...
We previously reported that certain short gp120 V2 region peptides homologous to vasaoactive intestinal peptide (VIP), such as “peptide T,” were potent inhibitors of gp120 binding, infectivity, and neurotoxicity. The present study shows that synthetic V2-region-derived peptides have potent...
Functional inactivation of leukocyte adhesion molecules has been used to intervene in the development of tissue injury in experimental models of postperfusion infarction as well as autoimmune inflammation. We investigated the use of humanized monoclonal antibodies (mAb) against CD18 in the...
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