Results 91 to 100 of about 120,627 (303)

Defending the genome from the enemy within:mechanisms of retrotransposon suppression in the mouse germline [PDF]

open access: yes, 2013
The viability of any species requires that the genome is kept stable as it is transmitted from generation to generation by the germ cells. One of the challenges to transgenerational genome stability is the potential mutagenic activity of transposable ...
A Aravin   +241 more
core   +1 more source

Type I Interferon Signaling Augments Autoimmunity in Neuromyelitis Optica Spectrum Disorder

open access: yesAdvanced Science, EarlyView.
The cGAS‐STING innate immune pathway is excessively activated both in peripheral monocytes and CNS microglia in patients with NMOSD, leading to an overproduction of IFN‐I. IFN‐I subsequently acts on AQP4‐specific autoreactive T cells. Blocking this pathway may offer novel therapeutic options for individuals with NMOSD.
Tian‐Xiang Zhang   +13 more
wiley   +1 more source

Viroids-First—A Model for Life on Earth, Mars and Exoplanets

open access: yesGeosciences, 2019
The search for extraterrestrial life, recently fueled by the discovery of exoplanets, requires defined biosignatures. Current biomarkers include those of extremophilic organisms, typically archaea.
Karin Moelling, Felix Broecker
doaj   +1 more source

ATF3 Deficiency Exacerbates Ageing‐Induced Atherosclerosis and Clinical Intervention Strategy

open access: yesAdvanced Science, EarlyView.
Targeting ATF3 with terazosin to against VSMC Senescence and atherosclerosis. TZ reduces the binding affinity of YTHDF2 to Atf3 mRNA, while enhancing mRNA stability. ATF3 promotes Atg7 transcription, enhancing autophagy. ATG7 binds to ATF3 in the cytoplasm, facilitating ATF3 translocation to the nucleus and establishing positive feedback. By modulating
Hao Nie   +11 more
wiley   +1 more source

Revisiting Plus-Strand DNA Synthesis in Retroviruses and Long Terminal Repeat Retrotransposons: Dynamics of Enzyme: Substrate Interactions

open access: yesViruses, 2009
Although polypurine tract (PPT)-primed initiation of plus-strand DNA synthesis in retroviruses and LTR-containing retrotransposons can be accurately duplicated, the molecular details underlying this concerted series of events remain largely unknown ...
Stuart F. J. Le Grice   +2 more
doaj   +1 more source

No genetic evidence for involvement of Deltaretroviruses in adult patients with precursor and mature T-cell neoplasms [PDF]

open access: yes, 2007
Background The Deltaretrovirus genus comprises viruses that infect humans (HTLV), various simian species (STLV) and cattle (BLV). HTLV-I is the main causative agent in adult T-cell leukemia in endemic areas and some of the simian T-cell lymphotropic ...
Burmeister, Thomas   +4 more
core   +2 more sources

Parvalbumin Interneuron‐Dependent Hippocampal Neurogenesis Evoked by Prolonged Rhythmic Light Flicker

open access: yesAdvanced Science, EarlyView.
This study demonstrates that prolonged rhythmic 40 Hz light flicker enhances spatial learning by stimulating PV interneuron‐dependent neurogenesis. The light flicker selectively activates PV interneurons, which enhances GABAergic support for the integration of immature neurons in the adult dentate gyrus.
Hai Yan   +16 more
wiley   +1 more source

TRIM5 Acts as More Than a Retroviral Restriction Factor

open access: yesViruses, 2011
The retrovirus restriction factor TRIM5α blocks post-entry infection of retroviruses in a species-specific manner. As a cellular E3 ubiquitin ligase, TRIM5α binds to the retroviral capsid lattice in the cytoplasm of an infected cell and accelerates the ...
Li Wu, Suresh De Silva
doaj   +1 more source

MicroRNAs and human retroviruses

open access: yesBiochimica et Biophysica Acta (BBA) - Gene Regulatory Mechanisms, 2011
MicroRNAs (miRNAs) are small non-coding RNAs that control a multitude of critical processes in mammalian cells. Increasing evidence has emerged that host miRNAs serve in animal cells to restrict viral infections. In turn, many viruses encode RNA silencing suppressors (RSS) which are employed to moderate the potency of the cell's miRNA selection against
Laurent Houzet, Kuan-Teh Jeang
openaire   +2 more sources

Subgenome Partitioning and Polyploid Genome Evolution in the Loach Family Botiidae (Order Cypriniformes)

open access: yesAdvanced Science, EarlyView.
This study investigates subgenome evolution and polyploidy in Cypriniformes fish, revealing complex phylogenetic relationships and genomic dynamics. By applying advanced subgenome partitioning methods, it uncovers novel insights into transposon activity and gene fractionation.
Yunyun Lv   +14 more
wiley   +1 more source

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