Results 51 to 60 of about 107,781 (288)

Targeting the clonal expansion of mitochondrial DNA mutations in ageing and disease [PDF]

open access: yes, 2022
Ph. D. Thesis.The clonal expansion of mitochondrial DNA (mtDNA) mutations is believed to mediate the presentation and severity of clinical symptoms of a wide range of inherited and age-related diseases.
McNiff, Megan
core  

Evolution of Barrett’s esophagus through space and time at single-crypt and whole-biopsy levels

open access: yesNature Communications, 2018
Clonal dynamics of Barrett’s esophagus (BE) leading to cancer are poorly understood. Here, they report BE segments are clonal, have frequent mutations at the gastro-esophageal junction, genomic instability precedes genome doubling/clonal expansion, and a
Pierre Martinez   +8 more
doaj   +1 more source

Soil saline-alkali heterogeneity is an important factor driving the spatial expansion of clonal plant in grassland

open access: yesFrontiers in Environmental Science, 2023
Soil salinity is well known heterogeneous and various within natural soil environment. In Songnen grassland of Northeast China, grazing aggravates the saline-alkali heterogeneity in soil habitat, which led to dominant clonal plant species forming a ...
Luhao Qu   +9 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Clonal Expansion of Endothelial Cells Contributes to Ischemia-Induced Neovascularization

open access: yes, 2018
Rationale: Vascularization is critical to maintain organ function. Although many molecular pathways were shown to control vessel growth, the genuine process of capillary formation under different ...
Michael A. Rieger   +29 more
core   +1 more source

Model to improve specificity for identification of clinically-relevant expanded T cells in peripheral blood.

open access: yesPLoS ONE, 2019
Current methods to quantify T-cell clonal expansion only account for variance due to random sampling from a highly diverse repertoire space. We propose a beta-binomial model to incorporate time-dependent variance into the assessment of differentially ...
Julie Rytlewski   +6 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Genetic Variation in Spatio-Temporal Confined USA300 Community-Associated MRSA Isolates: A Shift from Clonal Dispersion to Genetic Evolution?

open access: yes, 2011
NTRODUCTION: Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) are increasingly isolated, with USA300-0114 being the predominant clone in the USA. Comparative whole genome sequencing of USA300 isolates collected in 2002, 2003 and
Fluit, AC   +26 more
core   +1 more source

Pan-cancer evolution signatures link clonal expansion to dynamic changes in the tumor immune microenvironment. [PDF]

open access: yes
Cancer is an evolutionary process characterized by profound intratumor heterogeneity (ITH), which can be quantified using in silico estimates of cancer cell fractions (CCFs) of tumor-specific somatic mutations. We demonstrate a data-driven approach based
Ke Yuan (172453)   +6 more
core   +2 more sources

Protocol for monitoring clonal hematopoiesis in transgenic mouse models using multispectral imaging

open access: yesSTAR Protocols
Summary: Clonal hematopoiesis involves the clonal expansion of hematopoietic cells, potentially progressing into hematological malignancies. Here, we present a protocol for the development and characterization of two mouse models designed to simulate ...
Priyanka Khanna   +5 more
doaj   +1 more source

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