Results 131 to 140 of about 209,877 (288)

Depletion of Sorcs3 Activates Totipotency in Mouse Embryonic Stem Cells by Modulating Key Signaling Pathways

open access: yesAdvanced Science, EarlyView.
In this article, Shuai and colleagues found that depletion of Sorcs3 could activate totipotency in mESCs, promising bidirectional differentiation potential to embryonic and extraembryonic lineages. The underlying mechanism might be activation of Tfap2c and repression of TGF‐β, PI3K‐AKT, and lysosome pathways.
Wenhao Zhang   +12 more
wiley   +1 more source

XASH genes promote neurogenesis in Xenopus embryos [PDF]

open access: yes, 1994
Neural development in Drosophila is promoted by a family of basic helix-loop-helix (bHLH) transcription factors encoded within the Achaete Scute-Complex (AS-C).
Anderson, David   +4 more
core  

5‐Hydroxymethylcytosine Dynamics Reveals Coordinated Reprogramming of Parental Genomes and X Chromosome Dosage Balance in Mouse SCNT Embryos

open access: yesAdvanced Science, EarlyView.
Genome‐wide, high‐resolution profiling of hydroxymethylation in mouse SCNT embryos reveals a transient, allele‐symmetric 5hmC reprogramming pattern distinct from natural embryos, with X‐chromosomes and imprinting control regions resistant to proper remodeling.
Zeming Xiang   +9 more
wiley   +1 more source

Geometrically Encoded Positioning of Introns, Intergenic Segments, and Exons in the Human Genome

open access: yesAdvanced Science, EarlyView.
This study introduces a new hypothesis: exons, introns, and intergenic segments are non‐random projections of the functional layers of 3D structure of chromatin packing domains. Evidence is presented that this “geometric code” may encode volumetric structure, reconciling epigenetic patterns, correlates with oncogenic mutations, acting as a potential ...
Luay M. Almassalha   +11 more
wiley   +1 more source

Ubc9‐Mediated SUMOylation of RPL3, an Unappreciated Mechanism against Hepatocyte Senescence by Repressing the DHX9‐p16 Axis

open access: yesAdvanced Science, EarlyView.
Liver aging is characterized by a decline in the expression of the SUMO‐conjugating enzyme Ubc9, resulting in reduced SUMOylation levels in hepatocytes, particularly in the case of ribosomal protein RPL3. Disruption of RPL3 SUMOylation increases its nuclear translocation. Interestingly, ribosome‐free RPL3 facilitates the recruitment of helicase DHX9 to
Hao Xie   +22 more
wiley   +1 more source

Site‐Specific Mitochondrial RNA N1‐Methyladenosine Demethylation via an Engineered MTS‐PUF‐ALKBH3 Fusion Protein

open access: yesAdvanced Science, EarlyView.
A CRISPR‐free mitochondrial RNA m1A demethylation (MRD) editor combining MTS, PUF proteins, and ALKBH3 enables precise m1A removal from mitochondrial mRNA and tRNA, which influences mitochondrial protein levels, cellular proliferation, ATP production, and mitochondrial respiration. Subsequently, in vivo demethylation of the m1A modification is achieved
Xiangrui Li   +13 more
wiley   +1 more source

Molecular Insights into Fungal Glycosylphosphatidylinositol Transamidase Complex

open access: yesAdvanced Science, EarlyView.
The glycosylphosphatidylinositol (GPI) biosynthesis pathway is critical for antifungal drug development. This study reports three cryo‐electron microscopy structures of fungal GPI transamidase (GPIT), captured in two substrate‐bound states and a novel dimeric assembly.
Zhengkang Hua   +12 more
wiley   +1 more source

REEP1 Accumulation Disrupts ER Integrity and Drives Spinal Motoneuron Degeneration in Distal Hereditary Motor Neuropathy

open access: yesAdvanced Science, EarlyView.
REEP1 contributes to endoplasmic reticulum (ER) shaping. Variants either cause cortical motoneuron degeneration and hereditary spastic paraplegia (HSP) or spinal motoneuron degeneration and distal hereditary motor neuropathy (dHMN). Knockout causes less complex ER structures and cortical motoneuron loss.
Andrea Bock   +25 more
wiley   +1 more source

Parabiosis, Assembloids, Organoids (PAO)

open access: yesAdvanced Science, EarlyView.
This review evaluates parabiosis, organoids, and assembloids as complementary disease models spanning systemic, organ, and multi‐organ levels. It highlights their construction strategies, applications, and current limitations, while emphasizing their integration with frontier technologies such as artificial intelligence, organ‐on‐a‐chip, CRISPR, and ...
Yang Hong   +5 more
wiley   +1 more source

Dual Disruption of the Immune Cytokine Spätzle Facilitates Fungal Infection of Diverse Insect Hosts

open access: yesAdvanced Science, EarlyView.
The Toll pathway is essential for insect defense against fungal pathogens. This works reports that fungal parasites employ two divergent virulent effectors to target the Toll receptor ligand Spätzle: a metalloprotease degrading it and a hairpin‐like effector hijacking it to block signal transduction. This dual strategy enables the fungus to kill a wide
Shuangxiu Song   +7 more
wiley   +1 more source

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