Results 11 to 20 of about 51,558 (279)

The pore conformation of lymphocyte perforin [PDF]

open access: yesScience Advances, 2021
Perforin is a pore-forming protein that facilitates rapid killing of pathogen-infected or cancerous cells by the immune system. Perforin is released from cytotoxic lymphocytes, together with pro-apoptotic granzymes, to bind to the plasma membrane of the ...
M. E. Ivanova   +6 more
semanticscholar   +7 more sources

Covid-19 in a patient with Familial Hemophagocytic Lymphohistiocytosis in children

open access: yesThe Turkish Journal of Pediatrics, 2021
Background. Based on the information obtained so far, COVID- 19 is relatively mild in children. We will present a 6-month-old male patient infected with COVID -19 in April 2020, while receiving HLH 2004 chemotherapy protocol with the diagnosis of ...
V Hülya Üzel, Kamil Yılmaz
doaj   +1 more source

Crosstalk between cytotoxic CD8+ T cells and stressed cardiomyocytes triggers development of interstitial cardiac fibrosis in hypertensive mouse hearts

open access: yesFrontiers in Immunology, 2022
Graphical AbstractCardiac fibrosis developed from fibrotic remodelling due to hypertension leads to heart failure. Immune cells are abundantly accumulated in fibrotic regions, but exact mechanisms how they contributed to cardiac fibrosis are not clear ...
Kurt Brassington   +12 more
doaj   +1 more source

Gold Nanoparticles and Graphene Oxide Flakes Enhance Cancer Cells’ Phagocytosis through Granzyme-Perforin-Dependent Biomechanism

open access: yesNanomaterials, 2021
The study aimed to investigate the roles of gold nanoparticles (GNPs) and graphene oxide flakes (GOFs) as phagocytosis enhancers against cancer cells. The nanomaterials were characterized through SEM and UV-VIS absorptions.
Mohsen S. Al-Omar   +9 more
semanticscholar   +1 more source

CTLs: Killers of intracellular bacteria

open access: yesFrontiers in Cellular and Infection Microbiology, 2022
Many microbial pathogens have evolved a range of capabilities to evade host immune defense mechanisms and to survive and multiply in host cells. The presence of host intracellular bacteria makes it difficult for specific antibodies to function. After the
Li Tian   +8 more
doaj   +1 more source

Frequent birth-and-death events throughout perforin-1 evolution

open access: yesBMC Evolutionary Biology, 2020
Background Through its ability to open pores in cell membranes, perforin-1 plays a key role in the immune system. Consistent with this role, the gene encoding perforin shows hallmarks of complex evolutionary events, including amplification and ...
Miguel Araujo-Voces, Víctor Quesada
doaj   +1 more source

Perforins Expression by Cutaneous Gamma Delta T Cells

open access: yesFrontiers in Immunology, 2020
Gamma delta (GD) T cells are an unconventional T cell type present in both the epidermis and the dermis of human skin. They are critical to regulating skin inflammation, wound healing, and anti-microbial defense.
Katelyn O'Neill   +3 more
doaj   +1 more source

The immunological advantage of owned cats over stray cats: a comparative study of perforin and granzymes gene expressions

open access: yesActa Veterinaria, 2023
Some cats live at home with their owners while others live unattended on the streets or in shelters. One might expect that the owned cats would be better prepared for diseases with vaccinations, and good care and feeding conditions whereas the stray cats
Temizkan Mehmet Cevat   +4 more
doaj   +1 more source

Endometrial Cancer Suppresses CD8+ T Cell-Mediated Cytotoxicity in Postmenopausal Women

open access: yesFrontiers in Immunology, 2021
Endometrial cancer is the most common gynecological cancer. To investigate how it suppresses host immune function, we isolated CD8+ T cells from endometrial endometroid carcinomas and adjacent non-cancerous endometrium and determined if the tumor ...
Mickey V. Patel   +5 more
doaj   +1 more source

All About (NK Cell-Mediated) Death in Two Acts and an Unexpected Encore: Initiation, Execution and Activation of Adaptive Immunity

open access: yesFrontiers in Immunology, 2022
NK cells are key mediators of immune cell-mediated cytotoxicity toward infected and transformed cells, being one of the main executors of cell death in the immune system.
Ariel Ramírez-Labrada   +24 more
doaj   +1 more source

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