Results 41 to 50 of about 2,657,787 (357)

TGF-β signaling alters H4K20me3 status via miR-29 and contributes to cellular senescence and cardiac aging

open access: yesNature Communications, 2018
Cellular senescence is associated with epigenetic remodeling. Here, the authors report that TGF-β signaling promotes miR-29 mediated loss of H4K20me3 thus accelerating senescence.
Guoliang Lyu   +10 more
doaj   +1 more source

Heterogeneity and stochastic growth regulation of biliary epithelial cells dictate dynamic epithelial tissue remodeling

open access: yeseLife, 2016
Dynamic remodeling of the intrahepatic biliary epithelial tissue plays key roles in liver regeneration, yet the cellular basis for this process remains unclear.
Kenji Kamimoto   +5 more
doaj   +1 more source

The molecular mechanism of human stem cell-derived extracellular vesicles in retinal repair and regeneration

open access: yesStem Cell Research & Therapy, 2023
Extracellular vesicles (EVs), including microvesicles (MVs) and exosomes, play a critical role in metabolic regulation and intracellular communication.
Mei Yang, Guang-hua Peng
doaj   +1 more source

Mouse WIF1 Is Only Modified with O-Fucose in Its EGF-like Domain III Despite Two Evolutionarily Conserved Consensus Sites

open access: yesBiomolecules, 2020
The Wnt Inhibitory Factor 1 (Wif1), known to inhibit Wnt signaling pathways, is composed of a WIF domain and five EGF-like domains (EGF-LDs) involved in protein interactions.
Florian Pennarubia   +6 more
doaj   +1 more source

MicroRNAs regulate T-cell production of interleukin-9 and identify hypoxia-inducible factor-2a as an important regulator of T helper 9 and regularoty T-cell differentiation [PDF]

open access: yes, 2016
MicroRNAs (miRNAs) regulate many aspects of helper T cell (Th) development and function. Here we found that they are required for the suppression of interleukin‐9 (IL‐9) expression in Th9 cells and other Th subsets. Two highly related miRNAs (miR‐15b and
Baumjohann   +37 more
core   +2 more sources

Retinoic acid regulates erythropoietin production cooperatively with hypoxia-inducible factors in human iPSC-derived erythropoietin-producing cells

open access: yesScientific Reports, 2021
Erythropoietin (EPO) is a crucial hormone for erythropoiesis and produced by adult kidneys. Insufficient EPO production in chronic kidney disease (CKD) can cause renal anemia.
Naoko Katagiri   +7 more
doaj   +1 more source

Infection Models for Pine Wilt Disease on the Basis of Vector Behaviors

open access: yesPopulation Ecology, EarlyView.
Infection models for pine wilt disease without vector density were built to estimate the transmission coefficient of the pathogenic nematode. The models successfully simulated the annual change in the density of infected trees for four pine stands. ABSTRACT Pine wilt disease is caused by the pinewood nematode (Bursaphelenchus xylophilus Steiner et ...
Katsumi Togashi
wiley   +1 more source

Hierarchical assembly of centriole subdistal appendages via centrosome binding proteins CCDC120 and CCDC68

open access: yesNature Communications, 2017
Centriole subdistal appendages (SDAs) anchor microtubules in interphase cells, but their composition and assembly mechanisms are unclear. Here the authors show that two new SDA components, CCDC120 and CCDC68, are required for hierarchical SDA assembly ...
Ning Huang   +7 more
doaj   +1 more source

Transcription shapes DNA replication initiation to preserve genome integrity

open access: yesGenome Biology, 2021
Background Early DNA replication occurs within actively transcribed chromatin compartments in mammalian cells, raising the immediate question of how early DNA replication coordinates with transcription to avoid collisions and DNA damage.
Yang Liu   +10 more
doaj   +1 more source

Evolutionary interplay between viruses and R‐loops

open access: yesFEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi   +4 more
wiley   +1 more source

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