Results 21 to 30 of about 230,055 (317)

Natural killer and natural killer T cells in liver fibrosis

open access: yesBiochimica et Biophysica Acta (BBA) - Molecular Basis of Disease, 2013
The liver lymphocyte population is enriched with natural killer (NK) cells, which play a key role in host defense against viral infection and tumor transformation. Recent evidence from animal models suggests that NK cells also play an important role in inhibiting liver fibrosis by selectively killing early or senescence activated hepatic stellate cells
Gao, Bin, Radaeva, Svetlana
openaire   +2 more sources

Immunoregulation of Autoimmunity by Natural Killer T Cells [PDF]

open access: yesHuman Immunology, 2005
Natural killer T (NKT) cells are a conserved subpopulation of lymphocytes that recognize glycolipid antigens in a CD1d context. Upon activation through their semi-invariant T cell receptor, these cells rapidly release large amounts of immunomodulating Th1 and Th2 cytokines.
Loes, Linsen   +2 more
openaire   +2 more sources

Recognition of Human Histocompatibility Leukocyte Antigen (HLA)-E Complexed with HLA Class I Signal Sequence–derived Peptides by D94/NKG2 Confers Protection from Natural Killer Cell–mediated Lysis [PDF]

open access: yes, 1998
Human histocompatibility leukocyte antigen (HLA)-E is a nonclassical HLA class I molecule, the gene for which is transcribed in most tissues. It has recently been reported that this molecule binds peptides derived from the signal sequence of HLA class I ...
John E. Coligan   +14 more
core   +1 more source

Linking inflammation to natural killer T cell activation.

open access: yesPLoS Biology, 2009
Immune activation is often associated with inflammation, but inflammation's role in the expansion of antigen-specific immune responses remains unclear. This primer focuses on recent findings that show how specific natural killer T cells are activated by ...
Mariolina Salio, Vincenzo Cerundolo
doaj   +1 more source

Cord blood Vα24-Vβ11 natural killer T cells display a Th2-chemokine receptor profile and cytokine responses [PDF]

open access: yes, 2011
Background: The fetal immune system is characterized by a Th2 bias but it is unclear how the Th2 predominance is established. Natural killer T (NKT) cells are a rare subset of T cells with immune regulatory functions and are already activated in utero ...
Elfriede Noessner   +32 more
core   +1 more source

Natural Killer T Cell Based Immunotherapy [PDF]

open access: yesJournal of Vaccines & Vaccination, 2012
Natural killer T (NKT) cells play an important immunoregulatory role and are thought to bridge the innate and adaptive immune responses. Following activation through cognate interactions with lipid antigen presented in the context of CD1d molecules, NKT cells rapidly produce a plethora of cytokines and can also mediate cytotoxicity. Due to their potent
Priyanka B, Subrahmanyam   +4 more
openaire   +2 more sources

Matched sizes of activating and inhibitory receptor/ligand pairs are required for optimal signal integration by human Natural Killer cells [PDF]

open access: yes, 2010
It has been suggested that receptor-ligand complexes segregate or co-localise within immune synapses according to their size, and this is important for receptor signaling.
Mehrabi, M   +59 more
core   +1 more source

Chemorefractory extranodal nasal-type natural-killer/T-cell lymphoma with great response to pembrolizumab in a young patient: a case report

open access: yesJournal of Medical Case Reports, 2021
Introduction Extranodal, natural-killer/T-cell lymphoma of nasal type is a rare but aggressive disease usually presenting as progressive necrotic lesions in the nasal cavity that responds poorly to chemotherapy.
Fatemeh Adabifirouzjaei   +3 more
doaj   +1 more source

Ex vivo-expanded highly purified natural killer cells in combination with temozolomide induce antitumor effects in human glioblastoma cells in vitro.

open access: yesPLoS ONE, 2019
Glioblastoma is the leading malignant glioma with a poor prognosis. This study aimed to investigate the antitumor effects of natural killer cells in combination with temozolomide as the standard chemotherapeutic agent for glioblastoma.
Yoshitaka Tanaka   +12 more
doaj   +1 more source

Activation of human natural killer cells by Plasmodium falciparum [PDF]

open access: yes, 2003
The purpose of work described in this thesis was to (i) determine the contribution of innate immune responses to the early pro-inflammatory cytokine response to Plasmodium falciparum, (ii) describe the kinetics and ...
Artavanis-Tsakonas, Katerina
core   +1 more source

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