Results 21 to 30 of about 2,195 (166)

Periocular authentication in smartphones applying uLBP descriptor on CNN Feature Maps

open access: yesAnais do XVII Workshop de Visão Computacional (WVC 2021), 2021
The outputs of CNN layers, called Activations, are composed of Feature Maps, which show textural information that can be extracted by a texture descriptor. Standard CNN feature extraction use Activations as feature vectors for object recognition. The goal of this work is to evaluate a new methodology of CNN feature extraction. In this paper, instead of
William Barcellos, Adilson Gonzaga
openaire   +2 more sources

RAET1/ULBP alleles and haplotypes among Kolla South American Indians [PDF]

open access: yesHuman Immunology, 2013
NK cell cytolysis of infected or transformed cells can be mediated by engagement of the activating immunoreceptor NKG2D with one of eight known ligands (MICA, MICB and RAET1E-N) and is essential for innate immunity. As well as diversity of NKG2D ligands having the same function, allelic polymorphism and ethnic diversity has been reported. We previously
Cox, ST   +5 more
openaire   +3 more sources

HIV-1 Vpr triggers natural killer cell-mediated lysis of infected cells through activation of the ATR-mediated DNA damage response.

open access: yesPLoS Pathogens, 2009
Natural killer (NK) cells are stimulated by ligands on virus-infected cells. We have recently demonstrated that NK cells respond to human immunodeficiency virus type-1 (HIV-1)-infected autologous T-cells, in part, through the recognition of ligands for ...
Jeffrey Ward   +8 more
doaj   +1 more source

In vitro Natural Killer cell immunotherapy for medulloblastoma

open access: yesFrontiers in Oncology, 2013
How the immune system attacks medulloblastoma (MB) tumours effectively is unclear, although natural killer (NK) cells play an important role in immune defence against tumour cells.
Lucia eFernandez   +8 more
doaj   +1 more source

Expression Profiles of Ligands for Activating Natural Killer Cell Receptors on HIV Infected and Uninfected CD4+ T Cells

open access: yesViruses, 2017
Natural Killer (NK) cell responses to HIV-infected CD4 T cells (iCD4) depend on the integration of signals received through inhibitory (iNKR) and activating NK receptors (aNKR). iCD4 activate NK cells to inhibit HIV replication.
Alexandra Tremblay-McLean   +5 more
doaj   +1 more source

CMV-independent lysis of glioblastoma by ex vivo expanded/activated Vδ1+ γδ T cells. [PDF]

open access: yesPLoS ONE, 2013
Vδ2(neg) γδ T cells, of which Vδ1+ γδ T cells are by far the largest subset, are important effectors against CMV infection. Malignant gliomas often contain CMV genetic material and proteins, and evidence exists that CMV infection may be associated with ...
Andrea Knight   +8 more
doaj   +1 more source

Expression of the NKG2D ligand UL16 binding protein‐1 (ULBP‐1) on dendritic cells [PDF]

open access: yesEuropean Journal of Immunology, 2005
AbstractInnate and adaptive immunity have not evolved separately. In this regard, the NKG2D molecule first identified on NK cells and classified as an activating NK cell receptor is also an important receptor for CD8+ T cells. Functional analyses of human NKG2D and its ligands, i.e. UL16 binding proteins (ULBP) and MHC class I chain‐related (MIC), have
Schrama, D.   +8 more
openaire   +3 more sources

Cutting an NKG2D Ligand Short: Cellular Processing of the Peculiar Human NKG2D Ligand ULBP4

open access: yesFrontiers in Immunology, 2018
Stress-induced cell surface expression of MHC class I-related glycoproteins of the MIC and ULBP families allows for immune recognition of dangerous “self cells” by human cytotoxic lymphocytes via the NKG2D receptor. With two MIC molecules (MICA and MICB)
Tobias Zöller   +4 more
doaj   +1 more source

The Role and Regulation of the NKG2D/NKG2D Ligand System in Cancer

open access: yesBiology, 2023
The family of human NKG2D ligands (NKG2DL) consists of eight stress-induced molecules. Over 80% of human cancers express these ligands on the surface of tumour cells and/or associated stromal elements.
Ge Tan, Katelyn M. Spillane, John Maher
doaj   +1 more source

Multi-Feature Fusion Target Re-Location Tracking Based on Correlation Filters

open access: yesIEEE Access, 2021
Target tracking has been a research hotspot in computer vision, and the correlation filtered target tracking algorithm has the benefits of low computational complexity and fast speed.
Qingzhong Shu   +3 more
doaj   +1 more source

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