Results 101 to 110 of about 253,705 (262)

PROTAC‐Engineered Protein/DNA Nanoantigen is a Potent Booster for Dendritic Cell Vaccines in Cancer Immunotherapy

open access: yesAdvanced Science, EarlyView.
A PROTAC‐functionalized protein/DNA‐integrated nanoantigen platform is developed to enhance dendritic cell vaccine potency. By combining a VHL‐recruiting peptide‐modified antigen with a sustained expression plasmid within CaCO3 nanoparticles, this system amplifies cross‐presentation, promotes DC maturation, and elicits robust Th1 and CTL responses ...
Peng Liu   +4 more
wiley   +1 more source

Interferon y Stimulation Modulates the Proteolytic Activity and Cleavage Site Preference of 20S Mouse Proteasomes [PDF]

open access: yes, 1994
The proteasome is a 700-kD multisubunit enzyme complex with several proteolytically active sites. The enzyme complex is involved in both ubiquitin-dependent and -independent protein degradation and may contribute to the processing of antigens presented ...
Multhaupt, Gerd   +5 more
core   +1 more source

Dual‐line Genome‐scale CRISPR Screening Enables Robust Target Gene Discovery

open access: yesAdvanced Science, EarlyView.
A species‐optimized CRISPR platform integrates efficient piggyBac delivery, genome‐scale sgRNA libraries, and parallel screening in two independently engineered Bactrocera dorsalis Cas9 cell lines. Cross‐line consensus analysis filters line‐specific effects, enriches candidates with reproducible in vivo phenotypes, and reveals conserved, species ...
Ziniu Li   +9 more
wiley   +1 more source

The persisting challenge of selective and specific proteasome inhibition

open access: yes, 2009
Since the discovery of the proteasome and its structure elucidation intensive research programs in academic institutions and pharmaceutical industries led to identification of a wide spectrum of synthetic and natural small proteasomal inhibitors ...
Michael Groll   +5 more
core   +1 more source

BOULE is Essential for the Dynamic Disassembly of Heat Shock Granules in Male Germ Cells

open access: yesAdvanced Science, EarlyView.
BOULE orchestrates stress granule disassembly in germ cells via a two‐pronged mechanism: it promotes G3BP1 ubiquitination by upregulating TRIM27, generating a signal for VCP/FAF2 recruitment, and it maintains G3BP1 and FAF2 protein levels. BOULE deficiency disrupts disassembly complex formation, leading to impaired heat shock granule clearance ...
Xin Li   +8 more
wiley   +1 more source

Ubiquitin Signaling: Extreme Conservation as a Source of Diversity

open access: yesCells, 2014
Around 2 × 103–2.5 × 103 million years ago, a unicellular organism with radically novel features, ancestor of all eukaryotes, dwelt the earth. This organism, commonly referred as the last eukaryotic common ancestor, contained in its proteome the same ...
Alice Zuin, Marta Isasa, Bernat Crosas
doaj   +1 more source

Carrier‐Free Berberine/Nitidine Chloride Self‐Assembled Nanoparticles Induce Ferroptosis to Overcome Bortezomib Resistance in Multiple Myeloma

open access: yesAdvanced Science, EarlyView.
A schematic illustrating the fabrication process and ferroptosis‐mediated therapeutic mechanism of carrier‐free self‐assembled BBR/NC‐SAPs for overcoming bortezomib resistance in multiple myeloma. ABSTRACT Therapeutic relapse driven by bortezomib resistance represents a formidable clinical barrier in the management of multiple myeloma (MM).
Yiwen Lv   +16 more
wiley   +1 more source

Control of DNA Replication Initiation by Ubiquitin

open access: yesCells, 2018
Eukaryotic cells divide by accomplishing a program of events in which the replication of the genome is a fundamental part. To ensure all cells have an accurate copy of the genome, DNA replication occurs only once per cell cycle and is controlled by ...
Esperanza Hernández-Carralero   +5 more
doaj   +1 more source

Proteasome Inhibitors Stimulate Activator Protein-1 Pathway Via Reactive Oxygen Species Production

open access: yes, 2009
In this report we explored the effects of proteasome inhibitors (MG132, aLLN, lactacystin and MG262) on interleukin-8 (IL-8) induction. In HEK293 cells, proteasome inhibitors could concentration-dependently increase IL-8 promoter and activator protein-1 (
LIN, WAN-WAN, 林琬琬
core  

Loss of LCN2 Function Ameliorates Glucocorticoid‐Induced Muscle Atrophy via Remodeling the Extracellular Matrix

open access: yesAdvanced Science, EarlyView.
Glucocorticoids transcriptionally activate LCN2 expression via GR nuclear translocation. Secreted LCN2 binds MMP9 to degrade skeletal muscle ECM collagen, blocks integrin‐mediated mechanotransduction, bidirectionally disrupts muscle protein homeostasis, and reveals a novel target for steroid‐induced muscle atrophy.
Hongwei Shi   +11 more
wiley   +1 more source

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