Results 41 to 50 of about 19,041 (213)

Impact of temperature on karyotype differences in Cynodon dactylon of different ploidy levels at different latitudes

open access: yesBMC Plant Biology
Background Chromosomal karyotype is closely linked to species evolution, adaptability, and environmental responses. As global climate change intensifies, temperature fluctuations critically affect chromosomal behavior, consequently influencing plant ...
Liwen Wang   +5 more
doaj   +1 more source

TP53 Loss Elevates NF‐κB‐IFN‐β‐MHC‐Ia Signaling to Promote NK Cell Resistance in Osteosarcoma

open access: yesAdvanced Science, EarlyView.
TP53 loss in a transforming or osteosarcoma cell promotes cytosolic DNA accumulation, activating NF‐κB‐dependent IFN‐β production. Autocrine IFN‐β signaling increases cell‐surface HLA‐Ia expression, strengthens inhibitory KIR signaling in natural killer cells, and thereby enables the affected cell to evade NK cell‐mediated cytotoxicity.
Guihui Qin   +9 more
wiley   +1 more source

THE PECULIARITIES OF CARIOTYPIC EVOLUTION OF MAMMALIS IN THE CAUCASUS MOUNTAINS

open access: yesЮг России: экология, развитие, 2014
. In the present work chromosomal polymorphism is studied on the basis or cariotypes analisis of more than 100 species and intraspecific forms of Mammalia of the Caucasus. Divergence of branches on the phylogenetic trees received on different chromosomal
R. I. Dzuev, A. R. Dzuev
doaj   +1 more source

Endowing Flexibility of Alveolar Type II Cells to Recapitulate Development From Lung Bud to Alveoli

open access: yesAdvanced Science, EarlyView.
Adult human alveolar type 2 cells are chemically reprogrammed into expandable alveolar progenitor‐like cells that acquire bud tip‐like features during expansion and form organoids that mature into alveolar‐like structures. These organoids model influenza A virus infection and innate immune responses in vitro, while transplanted cells engraft ...
Hongqian Ma   +18 more
wiley   +1 more source

Cytogenetic risk stratification in chronic myelomonocytic leukemia

open access: yesHaematologica, 2011
Background The prognostic value of cytogenetic findings in chronic myelomonocytic leukemia is unclear. Our purpose was to evaluate the independent prognostic impact of cytogenetic abnormalities in a large series of patients with chronic myelomonocytic ...
Esperanza Such   +25 more
doaj   +1 more source

CHD8‐Dependent Chromatin Licensing Sustains Trophoblast Stem Cell Transcriptional Programs

open access: yesAdvanced Science, EarlyView.
In this study, Huang et al., identify chromatin remodeler CHD8 as an essential factor in TSC maintenance and placental development. CHD8‐dependent chromatin accessibility supports the occupancy of key trophoblast TFs and is coupled to KMT2A‐associated H3K4me3 deposition at TSC stem and cell cycle genes, providing a permissive chromatin environment for ...
Yuanyuan Huang   +16 more
wiley   +1 more source

Integration of the D‐Genome Reshapes Gene Transcription, Chromatin Architecture, and Metabolome of Allohexaploid Wheat, Leading to Enhanced Environmental Adaptability

open access: yesAdvanced Science, EarlyView.
Integration of the D‐genome reshapes gene transcription, chromatin architecture, and the metabolome of hexaploid wheat, leading to enhanced adaptability to salt, UV‐B, and alkali stress. ABSTRACT The hybridization‐led integration of the D‐genome into domesticated tetraploid wheat gave rise to allohexaploid wheat, the most cultivated wheat globally ...
Yanyan Liu   +23 more
wiley   +1 more source

SEC Mediates m6A Deposition and Transcription Pause Release to Drive Cell Identity Transition

open access: yesAdvanced Science, EarlyView.
The SEC promotes cell identity transitions by facilitating transcription pause release at key identity‐associated genes, including Klf4 and Myc during iPSC reprogramming and Nes and Tubb3 during ESC‐to‐neuroectodermal differentiation. During early iPSC reprogramming, this function additionally involves cooperation with METTL3‐associated m6A regulation.
Zhijing Zhang   +9 more
wiley   +1 more source

Chromosomal differentiation among bisexual European species of Saga (Orthoptera: Tettigoniidae: Saginae) detected by both classical and molecular methods

open access: yesEuropean Journal of Entomology, 2009
We report the karyotype characteristics including chromosome numbers of Saga campbelli campbelli, S. c. gracilis, and S. rammei using the following classical cytogenetic methods: C-banding, silver staining, and fluorochrome staining DAPI and CMA3.
Elżbieta WARCHAŁOWSKA-ŚLIWA   +5 more
doaj   +1 more source

A Living Multi‐Omics PDX Biobank of High‐Risk Sarcomas Reveals ecDNA‐Driven Oncogene Amplification in Osteosarcoma and Enables Preclinical Precision Oncology

open access: yesAdvanced Science, EarlyView.
A living multi‐omics sarcoma PDX biobank is enriched for high‐risk disease and preserves key patient tumor features at histopathological and molecular levels. Integrated profiling reveals ecDNA‐driven oncogene amplification in osteosarcoma and preferential retention of ecDNA during PDX evolution.
Weisong Zhao   +34 more
wiley   +1 more source

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