Results 91 to 100 of about 19,056,956 (378)

β‐TrCP overexpression enhances cisplatin sensitivity by depleting BRCA1

Molecular Oncology, EarlyView.
Low levels of β‐TrCP (Panel A) allow the accumulation of BRCA1 and CtIP, which facilitate the repair of cisplatin‐induced DNA damage via homologous recombination (HR) and promote tumor cell survival. In contrast, high β‐TrCP expression (Panel B) leads to BRCA1 and CtIP degradation, impairing HR repair, resulting in persistent DNA damage and apoptosis ...
Rocío Jiménez‐Guerrero, Alejandro Belmonte‐Fernández, Mónica González‐Moreno, Laura Rodríguez‐Cordero, Begoña Pérez‐Valderrama, Joaquín Herrero‐Ruíz, Francisco Romero, Carmen Sáez, Miguel Á. Japón   +8 more
wiley   +1 more source

3'-end processing of pre-mRNA in eukaryotes [PDF]

FEMS microbiology reviews, 1999
3'-Ends of almost all eukaryotic mRNAs are generated by endonucleolytic cleavage and addition of a poly(A) tail. In mammalian cells, the reaction depends on the sequence AAUAAA upstream of the cleavage site, a degenerate GU-rich sequence element downstream of the cleavage site and stimulatory sequences upstream of AAUAAA.
Wahle, Elmar, Rüeggsegger, Ursula
openaire   +4 more sources

Nicotinamide N‐methyltransferase promotes drug resistance in lung cancer, as revealed by nascent proteomic profiling

Molecular Oncology, EarlyView.
AZD9291 has shown promise in targeted cancer therapy but is limited by resistance. In this study, we employed metabolic labeling and LC–MS/MS to profile time‐resolved nascent protein perturbations, allowing dynamic tracking of drug‐responsive proteins. We demonstrated that increased NNMT expression is associated with drug resistance, highlighting NNMT ...
Zhanwu Hou, Zhen Wang, Fei Yang, Xiao Han, Lei Li, Huadong Liu   +5 more
wiley   +1 more source

A microfluidic processor for gene expression profiling of single human embryonic stem cells [PDF]

, 2008
The gene expression of human embryonic stem cells (hESC) is a critical aspect for understanding the normal and pathological development of human cells and tissues.
Chen, Yan, Marcus, Joshua S., Quake, Stephen R., Scherer, Axel, Taylor, Clive R., Weiner, Leslie P., Zhong, Jiang F.   +6 more
core   +1 more source

Coupling of Termination, 3′ Processing, and mRNA Export [PDF]

Molecular and Cellular Biology, 2002
In a screen to identify genes required for mRNA export in Saccharomyces cerevisiae, we isolated an allele of poly(A) polymerase (PAP1) and novel alleles encoding several other 3' processing factors. Many newly isolated and some previously described mutants (rna14-48, rna14-49, rna14-64, rna15-58, and pcf11-1 strains) are defective in polymerase II (Pol
Hammell, C M, Gross, Stefan, Zenklusen, Daniel, Heath, Catherine V, Stutz, Françoise, Moore, Claire, Cole, C N   +6 more
openaire   +3 more sources

PARP inhibitors elicit distinct transcriptional programs in homologous recombination competent castration‐resistant prostate cancer

Molecular Oncology, EarlyView.
PARP inhibitors are used to treat a small subset of prostate cancer patients. These studies reveal that PARP1 activity and expression are different between European American and African American prostate cancer tissue samples. Additionally, different PARP inhibitors cause unique and overlapping transcriptional changes, notably, p53 pathway upregulation.
Moriah L. Cunningham, Jasibel Vasquez‐Gonzalez, Samantha M. Barnada, Salome Tchotorlishvili, Latese Jones, Ryan Maguire, Genevieve Lewis, Kinza Rizwan, Jenny Deng, Salma Koachar, Drithi Patel, Hailey Shankle, Tessa Mulders, Namra Ajmal, Charalambos Solomides, Emad S. Alnemri, Teresa F. Alnemri, Ayesha A. Shafi, Leonard G. Gomella, Wm Kevin Kelly, Steven B. McMahon, Matthew J. Schiewer   +21 more
wiley   +1 more source

CFIm25 regulates human stem cell function independently of its role in mRNA alternative polyadenylation

RNA Biology, 2022
It has recently been shown that CFIm25, a canonical mRNA 3’ processing factor, could play a variety of physiological roles through its molecular function in the regulation of mRNA alternative polyadenylation (APA). Here, we used CRISPR/Cas9-mediated gene
Yi Ran, Shanshan Huang, Junjie Shi, Qiumin Feng, Yanhui Deng, Andy Peng Xiang, Chengguo Yao   +6 more
doaj   +1 more source

Characterizing the salivary RNA landscape to identify potential diagnostic, prognostic, and follow‐up biomarkers for breast cancer

Molecular Oncology, EarlyView.
This study explores salivary RNA for breast cancer (BC) diagnosis, prognosis, and follow‐up. High‐throughput RNA sequencing identified distinct salivary RNA signatures, including novel transcripts, that differentiate BC from healthy controls, characterize histological and molecular subtypes, and indicate lymph node involvement.
Nicholas Rajan, Irina Primac, Emre Etlioglu, Laurens Debruyne, Ann Janssen, Magy Sallam, Kevin Tabury, Roel Quintens, Wiebren Tjalma, Mohammed Abderrafi Benotmane   +9 more
wiley   +1 more source

Birth of a poly(A) tail: mechanisms and control of mRNA polyadenylation

FEBS Open Bio, 2023
During their synthesis in the cell nucleus, most eukaryotic mRNAs undergo a two‐step 3′‐end processing reaction in which the pre‐mRNA is cleaved and released from the transcribing RNA polymerase II and a polyadenosine (poly(A)) tail is added to the newly
Juan B. Rodríguez‐Molina, Matti Turtola   +1 more
doaj   +1 more source

Architecture of eukaryotic mRNA 3′-end processing machinery [PDF]

Science, 2017
Structural basis for mRNA 3′-end processing The eukaryotic mRNA 3′-end processing machinery interacts with the transcription machinery and adds the polyadenylation tail on the mRNA substrate. Casañal et al. used cryo-electron microscopy, mass spectrometry, and biochemical reconstitutions to show that the ...
Ana Casañal, Ananthanarayanan Kumar, Chris H. Hill, Ashley D. Easter, Paul Emsley, Gianluca Degliesposti, Yuliya Gordiyenko, Balaji Santhanam, Jana Wolf, Katrin Wiederhold, Gillian L. Dornan, Mark Skehel, Carol V. Robinson, Lori A. Passmore   +13 more
openaire   +4 more sources