Results 11 to 20 of about 213,002 (75)
Resistance of cytotoxic T lymphocytes to lysis by a clone of cytotoxic T lymphocytes. [PDF]
To investigate how cytotoxic T lymphocytes (CTL) avoid killing themselves when they destroy target cells, we compared 20 different cell lines as target cells, including several CTL cell lines, for their susceptibility to lysis by CTL. Variations in recognition of this diverse set of target cells was circumvented by attaching to all of them a monoclonal
David M. Kranz, Herman N. Eisen
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High Glucose Enhances Cytotoxic T Lymphocyte-Mediated Cytotoxicity [PDF]
Cytotoxic T lymphocytes (CTLs) are key players to eliminate tumorigenic or pathogen-infected cells using lytic granules (LG) and Fas ligand (FasL) pathways. Depletion of glucose leads to severely impaired cytotoxic function of CTLs. However, the impact of excessive glucose on CTL functions still remains largely unknown.
Jie Zhu+19 more
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Cytotoxicity of lymphocytes in the newborn. [PDF]
Antibody-dependent, phytohaemagglutinin-induced, and spontaneous cytotoxicity was studied in 44 term and 60 preterm newborn babies, all of whom were healthy and of normal weight for gestational age. Twenty-seven adults were used as controls. Antibody-dependent cytotoxicity was low in term babies particularly in the preterm ones during the first 4 days ...
N Matsaniotis+3 more
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Dynamics of cytotoxic T–lymphocyte exhaustion [PDF]
We examine simple mathematical models to investigate the circumstances under which the dynamics of cytotoxic T-lymphocyte (CTL) activation and differentiation may result in the loss of virus specific CD8+ cells, a process known as CTL exhaustion. We distinguish between two general classes of viruses: (i) viruses infecting cells that are not involved in
Wodarz, D, Klenerman, P, Nowak, M
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Migration of Cytotoxic T Lymphocytes in 3D Collagen Matrices [PDF]
To fulfill their killing functions, cytotoxic T lymphocytes (CTLs) need to migrate to search for their target cells in complex biological microenvironments, a key component of which is extracellular matrix (ECM). The mechanisms underlying CTL's navigation are not well understood so far.
arxiv +1 more source
Discrete-Time System of an Intracellular Delayed HIV Model with CTL Immune Response [PDF]
In [Math. Comput. Sci. 12 (2018), no. 2, 111--127], a delayed model describing the dynamics of the Human Immunodeficiency Virus (HIV) with Cytotoxic T Lymphocytes (CTL) immune response is investigated by Allali, Harroudi and Torres. Here, we propose a discrete-time version of that model, which includes four nonlinear difference equations describing the
arxiv +1 more source
Discrete and continuum models for the coevolutionary dynamics between CD8+ cytotoxic T lymphocytes and tumour cells [PDF]
We present an individual-based model for the coevolutionary dynamics between CD8+ cytotoxic T lymphocytes (CTLs) and tumour cells. In this model, every cell is viewed as an individual agent whose phenotypic state is modelled by a discrete variable. For tumour cells this variable represents a parameterisation of the antigen expression profiles, while ...
arxiv
The phenotype of lymphocytes, obtained from mice immunized with allogeneic tumor cells, with the capacity to induce macrophage cytotoxicity was determined. Macrophage cytotoxicity was induced, either by incubating the macrophages with Macrophage Arming Factor (MAF) containing supernatants of cultures of sensitized lymphocytes and tumor cells (arming ...
E Pels, W. Den Otter, R.A. de Weger
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Stochastic model of T Cell repolarization during target elimination (II) [PDF]
Cytotoxic T lymphocytes (T cells) and natural killer cells form a tight contact, the immunological synapse (IS), with target cells, where they release their lytic granules containing perforin/granzyme and cytokine containing vesicles. During this process the cell repolarizes and moves the microtubule organizing center (MTOC) towards the IS.
arxiv +1 more source
Stochastic model of T Cell repolarization during target elimination (I) [PDF]
Cytotoxic T lymphocytes (T) and natural killer (NK) cells are the main cytotoxic killer cells of the human body to eliminate pathogen-infected or tumorigenic cells (i.e. target cells). Once a NK or T cell has identified a target cell, they form a tight contact zone, the immunological synapse (IS).
arxiv +1 more source