Results 31 to 40 of about 268,604 (303)

Negative Regulation and Protective Function of Natural Killer Cells in HIV Infection: Two Sides of a Coin

Frontiers in Immunology, 2022
Natural killer (NK) cells play an important immunologic role, targeting tumors and virus-infected cells; however, NK cells do not impede the progression of human immunodeficiency virus (HIV) infection.
Yu Sun, Jie Zhou, Yongjun Jiang
doaj   +1 more source

Cytotoxic Isoantibodies and Immunologic Enhancement in Mice.

Experimental Biology and Medicine, 1966
Summary1. Cytotoxic isoantibodies and hemagglutinins are stimulated in response to H-2 isoantigenic differences between graft and host in mice. 2. This study offers data correlating cytotoxic isoantibody and immunological enhancement. 3. The mechanism of immunological enhancement has been shown to be associated with peripheral as well as central ...
openaire   +2 more sources

NKp46 clusters at the immune synapse and regulates NK cell polarization

Frontiers in Immunology, 2015
Natural killer cells play an important role in first-line defense against tumor and virus-infected cells. The activity of NK cells is tightly regulated by a repertoire of cell-surface expressed inhibitory and activating receptors.
Uzi eHadad, Uzi eHadad, Timothy J Thauland, Olivia M Martinez, Manish J Butte, Angel ePorgador, Sheri M Krams   +6 more
doaj   +1 more source

Uptake and cytotoxicity of citrate-coated gold nanospheres : comparative studies on human endothelial and epithelial cells [PDF]

, 2012
The use of gold nanoparticles (AuNPs) for diagnostic applications and for drug and gene-delivery is currently under intensive investigation. For such applications, biocompatibility and the absence of cytotoxicity of AuNPs is essential. Although generally
C Kirkpatrick, Romero, Ignacio, Kirkpatrick, C. James, Weksler Babette B, Uboldi, Chiara, Gibson, Matthew I.; id_orcid, Gibson, Matthew, Kirkpatrick, C. J. (C. James), Weksler, Babette B., Freese, Christian, Unger, Ronald E., Romero Ignacio A, Kirkpatrick, James, C., Couraud, Pierre-Olivier, Kirkpatrick C, Gibson, Matthew I., Babette B Weksler, Weksler, Babette, Kirkpatrick, James,, Pierre-Olivier Couraud, Gibson Matthew I, Kirkpatrick, C. J., Couraud Pierre-Olivier, Unger Ronald E, Chiara Uboldi, Matthew I Gibson, Ignacio A Romero, Unger, Ronald, Freese Christian, Ronald E Unger, Uboldi Chiara, Romero, Ignacio A., Christian Freese   +32 more
core   +1 more source

The role of cytokines, coagulation and fibrinolysis in leucocyte and LAK cell cytotoxicity of tumour cells [PDF]

, 2012
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Interleukin-2 activates lymphocytes to become highly cytotoxic for a wide range of tumour cell types in vitro (Iymphokine activated killer or LAK cells ...
Biggerstaff, John Patrick, Biggerstaff, John   +1 more
core   +6 more sources

Immune modulation of i.v. immunoglobulin in women with reproductive failure

Reproductive Medicine and Biology, 2018
Background The mechanism of maternal immune tolerance of the semi‐allogenic fetus has been explored extensively. The immune reaction to defend from invasion by pathogenic microorganisms should be maintained during pregnancy.
Ae R. Han, Sung K. Lee
doaj   +1 more source

Cx43-Gap Junctions Accumulate at the Cytotoxic Immunological Synapse Enabling Cytotoxic T Lymphocyte Melanoma Cell Killing [PDF]

International Journal of Molecular Sciences, 2019
Upon tumor antigen recognition, cytotoxic T lymphocytes (CTLs) and target cells form specialized supramolecular structures, called cytotoxic immunological synapses, which are required for polarized delivery of cytotoxic granules. In previous reports, we described the accumulation of connexin 43 (Cx43)-formed gap junctions (GJs) at natural killer (NK ...
Francisca Hofmann, Mariela Navarrete, Javiera Álvarez, Israel Guerrero, María Alejandra Gleisner, Andrés Tittarelli, Flavio Salazar-Onfray   +6 more
openaire   +2 more sources

Recognition of viral glycoproteins by influenza A-specific cross- reactive cytolytic T lymphocytes [PDF]

, 1980
Two populations of cytolytic T lymphocytes (CTL) generated after influenza A virus infection can be distinguished into one with specificity for the sensitizing hemagglutinin type and a second with cross-reactivity for antigens induced by other type-A ...
Klenk, H, Gething, M. J., Koszinowski, Ulrich H., Gething, MJ, Waterfield, MD, M D Waterfield, U H Koszinowski, M J Gething, Koszinowski, UH, Klenk, H. D., H Allen, Allen, H, Gething, M, Koszinowski, U H, H D Klenk, Allen, H., Waterfield, M. D., Klenk, HD   +17 more
core   +1 more source

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

FEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt, Ana‐Maria Sandru, Georg Vucak, Sebastian Didusch, Biljana Riemelmoser, Karin Ehrenreiter, Markus Hartl, Lukas A. Huber, Manuela Baccarini   +8 more
wiley   +1 more source

In vitro bio-immunological and cytotoxicity studies of poly(2-oxazolines)

Journal of Materials Science: Materials in Medicine, 2011
Poly(2-oxazolines) with varying alkyl chain lengths (e.g., methyl, ethyl, aryl) and molar masses have been tested for cell cytotoxicity in vitro. A standard 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was used for the estimation of cell viability.
Juraj, Kronek, Zuzana, Kroneková, Jozef, Lustoň, Ema, Paulovičová, Lucia, Paulovičová, Barbara, Mendrek   +5 more
openaire   +2 more sources