Results 191 to 200 of about 231,597 (259)

The E3 ubiquitin ligase mechanism specifying targeted microRNA degradation. [PDF]

open access: yesNature
Farnung J   +7 more
europepmc   +1 more source

Tubocapsenolide A Overcomes Oxaliplatin Resistance in Colorectal Cancer by Targeting PLK1 to Impair CEP55–ESCRT‐Associated Vesicular Damage Clearance

open access: yesAdvanced Science, EarlyView.
Oxaliplatin‐resistant colorectal cancer cells utilize a previously unappreciated PLK1‐CEP55‐ESCRT‐driven vesicular extrusion mechanism to clear L‐OHP‐induced cellular damage. The natural withanolide Tubocapsenolide A directly targets and inhibits PLK1 to disrupt this specific damage‐clearance machinery. This blockade induces severe nucleolar stress and
Yueying Yang   +15 more
wiley   +1 more source

HECTD1 Directs HIF‐1α to Facilitate Intestinal Inflammation and Carcinogenesis via Promoting Th17 Differentiation and Glycolysis

open access: yesAdvanced Science, EarlyView.
HECTD1 emerges as an upstream amplifier of Th17 metabolic programming by promoting K63‐linked ubiquitination of IGF2BP3 and enhancing HIF‐1α translation. HIF‐1α reciprocally drives HECTD1 transcription, establishing a positive regulatory loop that sustains glycolysis and Th17 differentiation.
Shuiyu Xu   +12 more
wiley   +1 more source

The E3 ubiquitin ligase HUWE1 is required for KRAS-induced lung cancer. [PDF]

open access: yesCell Death Dis
Searle J   +10 more
europepmc   +1 more source

ALDH2 Suppresses Ferroptosis and Promotes Bortezomib Resistance in Multiple Myeloma Through the KEAP1‐NRF2 Feedback Loop

open access: yesAdvanced Science, EarlyView.
ALDH2, which is overexpressed in multiple myeloma, competitively binds KEAP1 to stabilize NRF2 by blocking its ubiquitin‐proteasomal degradation. Stabilized NRF2 translocates into the nucleus to upregulate the expression of GPX4. In parallel, NRF2 binds to the ALDH2 promoter to regulate its transcription, forming a positive feedback loop that represses
Ruonan Shao   +10 more
wiley   +1 more source

The VCPIP1‐UBE3A Deubiquitination‐Ubiquitination Cascade Contributes to Castration‐Resistant Prostate Cancer Progression

open access: yesAdvanced Science, EarlyView.
VCIPIP1 emerges as a molecular link between protein stability and prostate cancer progression. By deubiquitinating and stabilizing UBE3A, VCIPIP1 promotes p53 degradation and progression to castration‐resistant prostate cancer. Elevated VCIPIP1 expression is associated with shorter castration‐resistant prostate cancer–free survival, highlighting the ...
Fei Lin   +9 more
wiley   +1 more source

E2 variants for probing E3 ubiquitin ligase activities. [PDF]

open access: yesProc Natl Acad Sci U S A
Du J   +9 more
europepmc   +1 more source

PIAS3 CircRNA‐Loaded Lipid Nanoparticles Restore ALOX15 SUMOylation to Suppress Cementoblast Ferroptosis and Attenuate Orthodontically Induced Root Resorption

open access: yesAdvanced Science, EarlyView.
Orthodontic compression suppresses PIAS3 expression in cementoblasts, impairing ALOX15 SUMOylation and ubiquitin‐mediated degradation, which leads to ALOX15 accumulation, lipid peroxidation, ferroptosis, and osteoclastogenesis. Local delivery of PIAS3 circRNA‐loaded lipid nanoparticles restores the PIAS3–ALOX15 regulatory pathway, alleviates ...
Yifei Hou   +11 more
wiley   +1 more source

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