Results 311 to 320 of about 55,236 (336)
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HIV-specific cytotoxic T-lymphocyte activity in immunologically normal HIV-infected persons
AIDS, 1998CD8+ T-cell counts usually increase soon after infection with HIV, whereas CD4+ cell counts decrease. The result of these changes in T-cell subpopulation subsets in most HIV-infected subjects is inversion of the CD4 : CD8 ratio from greater than 1.0 typical of uninfected persons to less than 1.0 after infection.Six HIV-infected individuals were ...
N F, Bernard +5 more
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Cytotoxicity and Immunological Response of Gold and Silver Nanoparticles of Different Sizes
Small, 2009AbstractThe immunological response of macrophages to physically produced pure Au and Ag nanoparticles (NPs) (in three different sizes) is investigated in vitro. The treatment of either type of NP at ≥10 ppm dramatically decreases the population and increases the size of the macrophages.
Hung-Jen, Yen +2 more
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The Journal of Immunology, 1990
Abstract Minor H incompatible P815 tumor cells inoculated into the anterior chamber (AC) of the eyes of BALB/c mice grow progressively, revealing this to be an immunologically privileged site. By contrast, a similar inoculation of tumor cells is rapidly rejected from nonprivileged ocular sites (subconjunctiva).
B R, Ksander, J W, Streilein
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Abstract Minor H incompatible P815 tumor cells inoculated into the anterior chamber (AC) of the eyes of BALB/c mice grow progressively, revealing this to be an immunologically privileged site. By contrast, a similar inoculation of tumor cells is rapidly rejected from nonprivileged ocular sites (subconjunctiva).
B R, Ksander, J W, Streilein
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Immunological Studies in Human Schistosomiasis
The American Journal of Tropical Medicine and Hygiene, 1977Complement dependent cytotoxic antibodies for Schistosoma mansoni schistosomules were studied in a Brazilian population. The sera of S. mansoni-infected patients gave a high percentage of cytotoxicity (63.4%) compared with sera from persons not infected (8.7%). The IgG class and the specificity of these cytotoxic antibodies are defined.
Capron, Monique +4 more
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A Reappraisal of Cytotoxic Lymphocytes in Human Tumor Immunology
1987Extensive work done at the Section of Clinical Tumor Virology and Immunology, Department of Medicine, The University of Texas M. D. Anderson Hospital, from 1968 to 1978 on the cytotoxicity of lymphocytes to cultured human tumor cells is reviewed. The early results and concepts are now reinterpreted in the light of newer knowledge generated worldwide in
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An immunological suppressor cell inactivating cytotoxic T-lymphocyte precursor cells recognizing it
Nature, 1980The immune system does not normally react against self components. Originally, it was postulated that self-reactive cells were somehow deleted or blocked. More recent thinking is that such cells are suppressed by regulatory networks similar to those limiting the immune response against non-self determinants. Both mechanisms may exist. I describe here a
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[In vitro cytotoxicity in the immunological study of human glioblastomas].
Bollettino della Societa italiana di biologia sperimentale, 1982An immunological study about the lymphocytes of nineteen patients affected by glioblastoma has been executed by using CML and ADCC tests. Eleven healthy subjects and nine ones affected by bladder carcinoma have been studied for control. The CML test has demonstrated an increase of citotoxic activity of lymphocytes in the totality of the patients ...
R, Parente +2 more
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[The lymphocyte cytotoxicity test in tumor immunology (author's transl)].
Klinische Wochenschrift, 1975The cytotoxic action of lymphocytes on cancer cells in vitro indicates sensitization of the patient against his own tumor. The technical difficulities of this test and possibilities of standardization and simplifying the procedure are discussed. Critical steps are isolation of lymphocytes and culturing target cells without loosing their specific ...
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A longitudinal study of immunological parameters in multiple sclerosis. Cytotoxic antibodies.
Journal of the neurological sciences, 1979Complement-dependent gliotoxic antibody activity was determined in 22 patients with multiple sclerosis (MS) and 19 normal control persons. Peripheral blood serum was collected from MS patients at about 4-week intervals for one year, and the results of cytotoxicity tests correlated with the course of disease.
P, Mar, T, Gradl, C, Dörner
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Current topics in microbiology and immunology: Cytotoxic effector mechanisms
Immunology Today, 1989David M. Ojcius, John Ding-E Young
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