Results 71 to 80 of about 140,512 (290)

Low YTHDC1 Expression Upregulates FSCN1 to Promote Nuclear F‐Actin Formation and Facilitate Double‐strand DNA Breaks Repair in TMZ‐Resistant Glioblastoma

Advanced Science, EarlyView.
This study revealed that low expression of YTHDC1 in TMZ‐resistant GBM cells leads to increased FSCN1 expression, which is suppressed by m6A modification. FSCN1 activates the CDC42/N‐WASP/Arp2/3 axis in the cell nucleus by recruiting the guanine nucleotide exchange factor (GEF) family member FGD1, thereby promoting F‐actin polymerization in the nucleus.
Minglong Yang, Wanxiang Niu, Yuanfei Wang, Peng Chen, Maolin Mu, Xiaoming Zhang, Ben Xu, Shanshan Hu, Chaoshi Niu, Pengfei Wu   +9 more
wiley   +1 more source

ZDHHC2‐Dependent Palmitoylation Dictates Ferroptosis and Castration Sensitivity in Prostate Cancer via Controlling ACSL4 Degradation and Lipid Peroxidation

Advanced Science, EarlyView.
Our study reveals a novel mechanism by which palmitoylation regulates ferroptosis and enzalutamide resistance in prostate cancer. Under enzalutamide resistance, the FOXA1/CXXC5/TET2 complex induces aberrant upregulation of ZDHHC2, which subsequently suppresses ferroptosis by mediating S‐palmitoylation of USP19 and degradation of ACSL4 protein in CRPC ...
Shuai Shao, Wei Li, Yulong Hong, Ruijiang Zeng, Liang Zhu, Lu Yi, Yuan Li, Yinhuai Wang, Haojie Huang, Xuewen Jiang, Xin Jin   +10 more
wiley   +1 more source

Targeted 2‐Deoxy‐D‐Ribose Delivery by Biomimetic Nanoplatform Activates EGFR for Accelerated Heart Valve Endothelialization

Advanced Science, EarlyView.
This study develops a biomimetic nanoplatform using erythrocyte membrane‐camouflaged, CD144 antibody‐functionalized nanoparticles to deliver 2‐deoxy‐D‐ribose (2dDR). This system promotes heart valve endothelialization by enhancing endothelial cell migration and proliferation via EGFR activation, while improving hemocompatibility.
Xiang Qiu, Gaofeng Li, Wenyi Wan, Jinsheng Li, Ge Yan, Shijie Wang, Xiuqi Hu, Zongqi Han, Yazheng Shan, Ying Zhou, Nianguo Dong, Weihua Qiao   +11 more
wiley   +1 more source

Structural Insights into the Regulation Mechanism of Small GTPases by GEFs

Molecules, 2019
Small GTPases are key regulators of cellular events, and their dysfunction causes many types of cancer. They serve as molecular switches by cycling between inactive guanosine diphosphate (GDP)-bound and active guanosine triphosphate (GTP)-bound states ...
Sachiko Toma-Fukai, Toshiyuki Shimizu
doaj   +1 more source

Characterization of Novel Derivatives of MBQ-167, an inhibitor of the GTP-binding proteins Rac/Cdc42. [PDF]

Cancer Res Commun, 2022
Medina JI, Cruz-Collazo A, Del Mar Maldonado M, Gascot TM, Borrero-Garcia LD, Cooke M, Kazanietz MG, O'Farril EH, Vlaar CP, Dharmawardhane S.   +9 more
europepmc   +1 more source

Soft‐Drug‐Inspired MnSTF Nano‐Adjuvant for Safe and Synergistic cGAS–STING Activation in Tumor Immunotherapy

Advanced Science, EarlyView.
This study introduces MnSTF, a soft‐drug‐inspired nanoadjuvant that overcomes the systemic toxicity of STING agonists. Through Mn2+ coordination with an ENPP1 inhibitor, it enables safe cGAS‐STING activation, remodels the tumor immune microenvironment, and synergizes with radiotherapy or vaccines to elicit robust antitumor immunity.
Guangfei Sun, Jiancheng Pan, Rui Li, Ruoxi Li, Ziyan Liu, Jinhui Wu, Tingsheng Lin, Yiqiao Hu, Ahu Yuan   +8 more
wiley   +1 more source

The hierarchical assembly of septins revealed by high-speed AFM

Nature Communications, 2020
Septins are GTP-binding proteins involved in diverse cellular processes including division, polarity maintenance and membrane remodeling. Here authors use high-speed atomic force microscopy to show that assembly of septin filaments is a diffusion-driven ...
Fang Jiao, Kevin S. Cannon, Yi-Chih Lin, Amy S. Gladfelter, Simon Scheuring   +4 more
doaj   +1 more source

A distinct class of GTP-binding proteins mediates chloroplast protein import in Rhodophyta. [PDF]

Proc Natl Acad Sci U S A, 2022
Baek S, Imamura S, Higa T, Nakai Y, Tanaka K, Nakai M.   +5 more
europepmc   +1 more source

Targeting DAP5 Disrupts Alternate Mode of Translational Initiation in Tregs and Potentiates Antitumor Immunity

Advanced Science, EarlyView.
Regulatory T cells (Tregs) suppress antitumor immunity. This study identifies that the translation scaffold DAP5/eIF4G2 is upregulated in tumor‐infiltrating Tregs (ti‐Tregs). DAP5 mediates an alternate translation mode to sustain CD25 and MCL‐1 expression, which is critical for ti‐Treg stability and survival in the tumor microenvironment.
Xiaojiang Lai, Guihong Pan, Xixi Feng, Jun Zhang, Yunxia Li, Shanmeizi Zhao, Zhenming Lin, Yun Feng, Wei Bao, Hongyan Yang, Chengmei Xie, Chen Huang, Jun Wang   +12 more
wiley   +1 more source

The HRAS Variant c.175G>A (p.Ala59Thr) Causes a Predominantly Ectodermal Phenotype Lacking Classic Costello Syndrome Features

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Costello syndrome (CS) is a rare dominant HRAS RASopathy characterized by curly hair, cardiac abnormalities, craniofacial anomalies, and developmental delay. HRAS codon 58, 59, and 60 variants are associated with milder phenotypes. We describe a three‐generation family with a previously unreported heterozygous HRAS variant c.175G>A (p.Ala59Thr)
Nikole Rautiainen, Eveliina Brandt, Kaisa Kettunen, Outi Elomaa, Sirpa Kivirikko, Leila Jeskanen, Katriina Lappalainen, Nelli Sjöblom, Juha Kere, Katariina Hannula‐Jouppi, Liisa Harjama   +10 more
wiley   +1 more source