Results 51 to 60 of about 13,668 (163)

Deadenylation of mRNA by the CCR4-NOT complex in Drosophila: molecular and developmental aspects

Frontiers in Genetics, 2014
Controlled shortening of the poly(A) tail of mRNAs is the first step in eukaryotic mRNA decay and can also be used for translational inactivation of mRNAs.
Claudia eTemme, Martine eSimonelig, Elmar eWahle   +2 more
doaj   +1 more source

Pan2‐Pan3 Complex‐Mediated Deadenylation Enforces mRNA Quality Control for Infection of the Rice Blast Fungus

Advanced Science, EarlyView.
Discovery that deadenylation, rather than transcription, acts as the rate‐limiting step for developmental timing in a plant pathogen. Evidence that P‐body integrity and mRNA decay are mechanistically coupled to rapid cellular differentiation under environmental stress. Identification of Pan2‐Pan3 as a pathogen‐specific “meta‐virulence factor” absent in
Ziwei Lv, Junting Feng, Shenxian Zhou, Zhiguang Qu, Jun Peng, Xiao‐Lin Chen, Deng Chen   +6 more
wiley   +1 more source

The control of elongation by the yeast Ccr4–Not complex [PDF]

Biochimica et Biophysica Acta (BBA) - Gene Regulatory Mechanisms, 2013
The Ccr4-Not complex is a highly conserved nine-subunit protein complex that has been implicated in virtually all aspects of gene control, including transcription, mRNA decay and quality control, RNA export, translational repression and protein ubiquitylation.
openaire   +2 more sources

Generation of CCR4/CD7 Bispecific CAR‐T Cells Resistant to Fratricide and Exhaustion

Advanced Science, EarlyView.
The applications of CAR T‐cell therapy in T‐cell malignancies face limitations such as fratricide, effector‐cell exhaustion, and antigen‐escape. Herein, we developed fratricide‐ and exhaustion‐resistant CAR‐T cells that targeted CCR4 and CD7 simultaneously, with optional EGFRt safety switch. Additionally, scRNA‐seq unveiled new molecular targets, which
Sile Li, Yuanxin Li, Asif Rashid, Hong Kee Tan, Shing Chan, Man Yan Hui, Wilson Yau Ki Chan, Kee See Lam, Yinping Liu, Wenwei Tu, Wing Leung   +10 more
wiley   +1 more source

Tumor‐Induced Splenic Remodeling: Mechanisms of Systemic Immunosuppression and Emerging Therapeutic Opportunities

Advanced Science, EarlyView.
ABSTRACT Despite the transformative impact of cancer immunotherapies such as immune checkpoint blockade, durable clinical responses remain limited. Increasing evidence indicates that antitumor immunity is governed not only by the tumor microenvironment, but also by systemic immune regulation mediated by peripheral immune organs. Among these, the spleen
Yuehua Liu, Xiaoqian Nie, Xiaofei Gao
wiley   +1 more source

A CAF40-binding motif facilitates recruitment of the CCR4-NOT complex to mRNAs targeted by Drosophila Roquin

Nature Communications, 2017
Roquin proteins downregulate target mRNA expression by recruiting effectors such as the CCR4-NOT deadenylase complex. Here the authors provide molecular details of how Roquin proteins recruit the CCR4-NOT complex to repress the expression of its targets.
Annamaria Sgromo, Tobias Raisch, Praveen Bawankar, Dipankar Bhandari, Ying Chen, Duygu Kuzuoğlu-Öztürk, Oliver Weichenrieder, Elisa Izaurralde   +7 more
doaj   +1 more source

Ultrasmall Au10–12 Nanoclusters: A Novel Platform for 223Ra‐Targeted Tumor α‐Therapy

Exploration, EarlyView.
Encapsulating 223Ra in Au10‐12 nanoclusters and functionalizing them with RGD peptides enables targeted α‐therapy and immune microenvironment remodeling in non‐osseous tumors like triple‐negative breast cancer. This study establishes a foundational framework for novel 223Ra‐labeled α‐radiopharmaceuticals and shows strong potential for clinical ...
Yifei Jiang, Huizhen Yang, Guoping Jia, Wangxi Hai, Rongyi Huang, Peng Wang, Min Zhang, Danni Li, Yizhou Chen, Xiao Li, Biao Li, Chunfu Zhang   +11 more
wiley   +1 more source

Insights into the structure of the CCR4-NOT complex by electron microscopy [PDF]

FEBS Letters, 2011
The CCR4-NOT complex is a deadenylation complex, which plays a major role for mRNA stability. The complex is conserved from yeast to human and consists of nine proteins NOT1-NOT5, CCR4, CAF1, CAF40 and CAF130. We have successfully isolated the complex using a Protein A tag on NOT1, followed by cross-linking on a glycerol gradient. All components of the
Nasertorabi, Fariborz, Batisse, Claire, Diepholz, Meikel, Suck, Dietrich, Boettcher, Bettina   +4 more
openaire   +4 more sources

Reconstitution of recombinant human CCR4-NOT reveals molecular insights into regulated deadenylation

Nature Communications, 2019
The CCR4-NOT complex shortens poly(A) tails of messenger RNAs. By biochemical reconstitution of the entire human CCR4-NOT complex, the authors show the stimulatory roles of non-enzymatic subunits and the importance of the interaction between CAF40 and ...
Tobias Raisch, Chung-Te Chang, Yevgen Levdansky, Sowndarya Muthukumar, Stefan Raunser, Eugene Valkov   +5 more
doaj   +1 more source

RNAs and RNA-Binding Proteins in Immuno-Metabolic Homeostasis and Diseases

Frontiers in Cardiovascular Medicine, 2019
The increasing prevalence of worldwide obesity has emerged as a major risk factor for type 2 diabetes (T2D), hepatosteatosis, and cardiovascular disease. Accumulating evidence indicates that obesity has strong inflammatory underpinnings tightly linked to
Esam S. B. Salem, Esam S. B. Salem, Andrew D. Vonberg, Vishnupriya J. Borra, Rupinder K. Gill, Takahisa Nakamura, Takahisa Nakamura, Takahisa Nakamura, Takahisa Nakamura   +8 more
doaj   +1 more source