Results 31 to 40 of about 107,781 (288)

Developmentally Programmed Division of Labor in the Aquatic Invader Alternanthera philoxeroides Under Homogeneous Soil Nutrients

open access: yesFrontiers in Plant Science, 2019
Clonal traits can contribute to plant invasiveness, but little is known about the roles of division of labor (a key clonal trait) in homogeneous habitats. The hypothesis tested is that clonal integration allows division of labor and increases the overall
Dao-Guo Xi   +4 more
doaj   +1 more source

Clonal Expansion of Verticillium dahliae in Lettuce [PDF]

open access: yesPhytopathology®, 2014
Few studies in population biology have documented how structure and diversity of pathogens evolve over time at local scales. With the historical samples of Verticillium dahliae available from lettuce, we investigated the structure and diversity of this pathogen in time and space. Three hundred twenty-nine V.
S, Gurung   +3 more
openaire   +2 more sources

Growth factors for clinical-scale expansion of human articular chondrocytes : Relevance for automated bioreactor systems [PDF]

open access: yes, 2007
The expansion of chondrocytes in automated bioreactors for clinical use requires that a relevant number of cells be generated, starting from variable initial seeding densities in one passage and using autologous serum.
Candrian, Christian   +7 more
core   +1 more source

Flower-deficient mice have reduced susceptibility to skin papilloma formation

open access: yesDisease Models & Mechanisms, 2012
SUMMARY Skin papillomas arise as a result of clonal expansion of mutant cells. It has been proposed that the expansion of pretumoral cell clones is propelled not only by the increased proliferation capacity of mutant cells, but also by active cell ...
Evgeniya Petrova   +3 more
doaj   +1 more source

The Evolution of Two Mutations During Clonal Expansion [PDF]

open access: yesGenetics, 2007
Abstract Knudson's two-hit hypothesis proposes that two genetic changes in the RB1 gene are the rate-limiting steps of retinoblastoma. In the inherited form of this childhood eye cancer, only one mutation emerges during somatic cell divisions while in sporadic cases, both alleles of RB1 are inactivated in the growing retina.
Hiroshi, Haeno   +2 more
openaire   +2 more sources

JunB Is Critical for Survival of T Helper Cells

open access: yesFrontiers in Immunology, 2022
Clonal expansion and differentiation of various T helper subsets, such as Th1, Th2, and Th17 cells, depend on a complex of transcription factors, IRF4 and a BATF-containing AP-1 heterodimer.
Tsunghan Hsieh   +7 more
doaj   +1 more source

Clonal expansion of T-cells in measles

open access: yesImmunology Letters, 1998
Some autoimmune complications such as postinfectious encephalomyelitis are associated with immunologic abnormalities induced by measles virus infection. To address the superantigenic stimulation in measles which might be related with autoimmune complications, T-cells bearing the TCRBV5S2 or TCRBV8 chains and the expression of activation markers were ...
Chwae, YJ   +6 more
openaire   +3 more sources

Wound-healing plasticity enables clonal expansion of founder progenitor cells in colitis. [PDF]

open access: yes, 2023
Chronic colonic injury and inflammation pose high risks for field cancerization, wherein injury-associated mutations promote stem cell fitness and gradual clonal expansion.
Nandini Girish   +13 more
core   +2 more sources

Autonomous B-cell receptor signaling and genetic aberrations in chronic lymphocytic leukemia-phenotype monoclonal B lymphocytosis in siblings of patients with chronic lymphocytic leukemia

open access: yesHaematologica, 2023
Clonal expansion of CD5-expressing B cells, commonly designated as monoclonal B lymphocytosis (MBL), is a precursor condition for chronic lymphocytic leukemia (CLL).
Edwin Quinten   +20 more
doaj   +1 more source

Determinants of mosaic chromosomal alteration fitness

open access: yesNature Communications
Clonal hematopoiesis (CH) is characterized by the acquisition of a somatic mutation in a hematopoietic stem cell that results in a clonal expansion. These driver mutations can be single nucleotide variants in cancer driver genes or larger structural ...
Yash Pershad   +43 more
doaj   +1 more source

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