Results 21 to 30 of about 905,093 (362)

Mac-1 (CD11b/CD18) is essential for Fc receptor-mediated neutrophil cytotoxicity and immunologic synapse formation.

open access: yesBlood, 2001
Receptors for human immunoglobulin (Ig)G and IgA initiate potent cytolysis of antibody (Ab)-coated targets by polymorphonuclear leukocytes (PMNs). Mac-1 (complement receptor type 3, CD11b/CD18) has previously been implicated in receptor cooperation with ...
A. Spriel   +6 more
semanticscholar   +1 more source

Assessment of intracanal medications cytotoxicity on L929 fibroblast cells

open access: yesBioscience Journal, 2016
This study aimed to evaluate the cytotoxicity of intracanal medications on L929 fibroblast cells at different periods of observation. The following experimental groups were studied: calcium hydroxide with camphorated paramonochlorophenol and glycerin ...
Michelle de Paula Farias   +6 more
doaj   +3 more sources

Cytotoxicity and genotoxicity of calcium silicate-based cements on an osteoblast lineage

open access: yesBrazilian Oral Research, 2016
Several calcium silicate-based biomaterials have been developed in recent years, in addition to Mineral Trioxide Aggregate (MTA). The aim of this study was to evaluate the cytotoxicity, genotoxicity and apoptosis/necrosis in human osteoblast cells (SAOS ...
Ana Lívia GOMES-CORNÉLIO   +7 more
doaj   +1 more source

Resistance of cancers to immunologic cytotoxicity and adoptive immunotherapy via X-linked inhibitor of apoptosis protein expression and coexisting defects in mitochondrial death signaling.

open access: yesCancer Research, 2006
The ability of cancers to evade immune surveillance and resist immunotherapy raises a fundamental question of how tumor cells survive in the presence of a competent immune system.
R. Ravi   +12 more
semanticscholar   +1 more source

Immunogenicity of decellularized extracellular matrix scaffolds: a bottleneck in tissue engineering and regenerative medicine

open access: yesBiomaterials Research, 2023
Tissue-engineered decellularized extracellular matrix (ECM) scaffolds hold great potential to address the donor shortage as well as immunologic rejection attributed to cells in conventional tissue/organ transplantation.
Mohammadreza Kasravi   +7 more
doaj   +1 more source

Stochastic model of T Cell repolarization during target elimination (I) [PDF]

open access: yes, 2020
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

Evidence for immunologic mechanisms in human vitiligo: patients' sera induce damage to human melanocytes in vitro by complement-mediated damage and antibody-dependent cellular cytotoxicity.

open access: yesJournal of Investigative Dermatology, 1988
Human vitiligo is a common depigmenting disorder that is often associated with polyendocrinopathies. The etiology of vitiligo is unknown although there is indirect evidence of a strong association between antimelanocyte antibodies in animal and human ...
David A. Norris   +3 more
semanticscholar   +1 more source

SDF-1α Reduces Human Natural Killer Cell Cytotoxicity against Chronic Myelogenous Leukemia K562 Cells

open access: yesIranian Journal of Allergy, Asthma and Immunology, 2019
Stromal cell-derived factor-1 alpha (SDF-1α) has been shown to be up-regulated in a variety of malignancies. So that, its expression is associated with poor prognosis and invasiveness.
Alireza Mardomi   +4 more
doaj   +1 more source

Bayesian Models and Decision Algorithms for Complex Early Phase Clinical Trials [PDF]

open access: yesStatistical Science 2010, Vol. 25, No. 2, 227-244, 2010
An early phase clinical trial is the first step in evaluating the effects in humans of a potential new anti-disease agent or combination of agents. Usually called "phase I" or "phase I/II" trials, these experiments typically have the nominal scientific goal of determining an acceptable dose, most often based on adverse event probabilities.
arxiv   +1 more source

Lung tumor microenvironment induces specific gene expression signature in intratumoral NK cells

open access: yesFrontiers in Immunology, 2013
Natural Killer (NK) cells are able to recognize and kill tumor cells, however whether they contribute to tumor immunosurveillance is still debated. Our previous studies demonstrated the presence of NK cells in human lung tumors.
Mélanie eGillard-Bocquet   +22 more
doaj   +1 more source

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