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Biomedical subjects

C Henry

Publications and source records attributed to C Henry.

At least 163 records · Page 9Linked to original sources
PubMed1975

Experimental immunosuppression induced by herpes simplex virus.

Cell-mediated immune response was studied in experimental herpetic infection in mice. Our data suggest that herpes simplex virus induced immunosuppression in mice. This depression was documented by the unresponsiveness of the lymphocytes to PHA stimulation in vitro and by the enhanced susceptibility of adult mice to Coxsackie B virus infection. Our data also suggest that levamisole, a potent immunostimulant drug, had no effect on the unresponsiveness of the lymphocytes to PHA stimulation.

Animals↗
PubMed1974

Hapten-sandwich labeling. I. A general procedure for simultaneous labeling of multiple cell surface antigens for fluorescence and electron microscopy.

A hapten-sandwich procedure has been developed for specific labeling of cell surface antigens for fluorescence or electron microscopy. Haptens are azo-coupled to immunoglobulins specific for a cell surface antigen; the hapten-modified cell-bound antibodies can then be visualized by adding fluorescent antihapten antibody, or by adding antihapten antibody followed by hapten-modified markers for electron microscopy. Virus or high molecular weight protein markers are lightly cross-linked before conjugation with hapten to prevent their disruption. Such stable hapten-modified markers, and the accessibility of many different purified anti-azophenyl-hapten antibodies, make it feasible to distinguish more than one membrane antigen in a given labeling experiment. When mouse lymphoid cell populations are labeled with separate markers for Ig and for thymus-associated antigens, many cells exhibit the Ig marker exclusively or the thymic marker predominantly, and some cells are completely free of label.

Animals↗
PubMed1970

Peyer's patches: immunologic studies.

The immune capabilities of the Peyer's patches have been investigated by the use of an in vitro system. Despite our failure to stimulate Peyer's patch lymphocytes in vivo it appears that Peyer's patches behave immunologically as peripheral lymphoid tissues. Cultures prepared from the dissociated Peyer's patches of normal rabbits respond to sheep erythrocytes. The response is comparable to that obtained with spleen cultures from the same animals and is not dependent on the presence of the epithelial cells which line the lumen. Similar thymic cultures do not respond. Our experiments with cultures prepared from rabbits which have received one or two injections of SRC show that the Peyer's patches contain both IgM and IgG "memory" cells which have migrated from the spleen. The concentration of these cells in the spleen remains several hundredfold higher.

Animals↗