Results 141 to 150 of about 3,725,865 (331)

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

Clonal expansion under the microscope: studying lymphocyte activation and differentiation using live-cell imaging [PDF]

open access: yes, 2016
Clonal expansion of lymphocytes is a hallmark of vertebrate adaptive immunity. A small number of precursor cells that recognize a specific antigen proliferate into expanded clones, differentiate and acquire various effector and memory phenotypes, which ...
Friedman, N, Polonsky, M, Chain, B
core  

Clones in blood and stratified epithelial cells, and their drivers

open access: yesProceedings of the Japan Academy. Series B, Physical and Biological Sciences
The term “clone” is commonly used in the medical and life sciences to denote a genetically identical population, at both the individual and cellular levels. The concept of clonal expansion is of fundamental importance in cancer research.
Shigeru CHIBA
doaj   +1 more source

Clonal expansion of CD4+ Cytotoxic T Lymphocytes in IgG4-related disease

open access: yesJournal of Allergy and Clinical Immunology, 2016
Background IgG4-related disease (IgG4-RD) is a systemic condition of unknown etiology, characterized by highly fibrotic lesions with dense lymphoplasmacytic infiltrates.
H. Mattoo   +13 more
semanticscholar   +1 more source

clonal expansion

open access: yes
Citation: 'clonal expansion' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.13014 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

open access: yesFEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan   +2 more
wiley   +1 more source

Induced p53 loss in mouse luminal cells causes clonal expansion and development of mammary tumours

open access: yesNature Communications, 2017
Most breast cancers may have a luminal origin. TP53 is one of the most frequently mutated genes in breast cancers. However, how p53 deficiency contributes to breast tumorigenesis from luminal cells remains elusive. Here we report that induced p53 loss in
Luwei Tao   +4 more
semanticscholar   +1 more source

Selective clonal expansion and microenvironmental permissiveness in tobacco carcinogenesis [PDF]

open access: yesOncogene, 2002
Historically our knowledge about the direct carcinogenic activity of cigarette smoke and its constituents grew from painting experiments on the skin of mice to produce papillomas and carcinomas. The neutral fraction of cigarette smoke condensate had most of the carcinogenic activity in this test and was rich in carcinogenic polycyclic aromatic ...
openaire   +2 more sources

BCG vaccination potentiates oxidative phosphorylation in neonatal myeloid‐derived suppressor cells

open access: yesFEBS Open Bio, EarlyView.
BCG vaccination enhances oxidative phosphorylation in neonatal MDSCs, impairing their immunosuppressive function. It upregulates electron transport chain genes and mitochondrial activity, increasing ATP and oxygen consumption. Pharmacological OXPHOS inhibition partially restores suppressive capacity, confirming causality.
Yingying Chen, Hui Li
wiley   +1 more source

Description of a possible clonal expansion of Plasmodium vivax in Manaus - Amazonas - Brazil

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 1999
Atypical P. vivax cases reported in Manaus municipality led us to detect a genetic isolate of P. vivax. Variable regions of SSUrRNA were examined from the initial time of infection and in the two recrudescences/relapses from a patient exhibiting ...
Maria das Graças Costa Alecrim   +7 more
doaj  

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