Results 91 to 100 of about 287,271 (313)

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

Molecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis, Jack V. Mills, Wojciech Niedzwiedz, Valentine M. Macaulay   +3 more
wiley   +1 more source

Cytoplasmic and Nuclear Estradiol Receptor in the Corpus Luteum of the Pseudopregnant Rabbit

Experimental Biology and Medicine, 1979
SummaryEstradiol binding activity has been measured in the rabbit corpus luteum on Days 2, 4, and 6 of pseudopregnancy. The results show that receptor activity is significantly greater on Day 4 than on Day 2 with continued increases on Day 6. In addition, the estradiol receptor activity is translocated into the nucleus within 30 min of injection of 100
openaire   +2 more sources

Nuclear Translocation of the p75 Neurotrophin Receptor Cytoplasmic Domain in Response to Neurotrophin Binding [PDF]

The Journal of Neuroscience, 2005
The intracellular domain of the p75 neurotrophin receptor (p75ICD) can be released by γ-secretase in response to the previous activation of α-secretase by phorbol esters. However, ligand-dependent release of p75ICDhas yet to be described. We show here that nerve growth factor can induce the release of p75ICDand facilitate its translocation to the ...
openaire   +3 more sources

Automated FRAP microscopy for high‐throughput analysis of protein dynamics in chromatin organization and transcription

FEBS Open Bio, EarlyView.
RoboMic is an automated confocal microscopy pipeline for high‐throughput functional imaging in living cells. Demonstrated with fluorescence recovery after photobleaching (FRAP), it integrates AI‐driven nuclear segmentation, ROI selection, bleaching, and analysis.
Selçuk Yavuz, Bart Geverts, Johan A. Slotman, Andrea Sacchetti, Stefan Prekovic, Martin E. van Royen, Adriaan B. Houtsmuller   +6 more
wiley   +1 more source

Importin 7 and Nup358 promote nuclear import of the protein component of human telomerase.

PLoS ONE, 2014
In actively dividing eukaryotic cells, chromosome ends (telomeres) are subject to progressive shortening, unless they are maintained by the action of telomerase, a dedicated enzyme that adds DNA sequence repeats to chromosomal 3'end.
Cornelia Frohnert, Saskia Hutten, Sarah Wälde, Annegret Nath, Ralph H Kehlenbach   +4 more
doaj   +1 more source

Nuclear β-arrestin1 is a critical cofactor of hypoxia-inducible factor-1α signaling in endothelin-1-induced ovarian tumor progression [PDF]

, 2016
Hypoxia-inducible factor-1α (HIF-1α) mediates the response to hypoxia or other stimuli, such as growth factors, including endothelin-1 (ET-1), to promote malignant progression in numerous tumors.
Bagnato, Anna, Caprara, Valentina, CIANFROCCA, Roberta, Di Castro, Valeriana, Rosanò, Laura, Sestito, Rosanna, TOCCI, PIERA   +6 more
core   +1 more source

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

FEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li, Xi Xiao, Lingbin Qi, Chanyi Li, Sirui Song, Jiaying Qin, Zhigang Xue, Jinfeng Xue, Huaifang Li   +8 more
wiley   +1 more source

Noncanonical IFN Signaling, Steroids, and STATs: A Probable Role of V-ATPase

Mediators of Inflammation, 2019
A small group of only seven transcription factors known as STATs (signal transducer and activator of transcription) are considered to be canonical determinants of specific gene activation for a plethora of ligand/receptor systems. The activation of STATs
Howard M. Johnson, Ezra Noon-Song, Chulbul M. Ahmed   +2 more
doaj   +1 more source

BMI‐1 modulation and trafficking during M phase in diffuse intrinsic pontine glioma

FEBS Open Bio, EarlyView.
The schematic illustrates BMI‐1 phosphorylation during M phase, which triggers its translocation from the nucleus to the cytoplasm. In cycling cells, BMI‐1 functions within the PRC1 complex to mediate H2A K119 monoubiquitination. Following PTC596‐induced M phase arrest, phosphorylated BMI‐1 dissociates from PRC1 and is exported to the cytoplasm via its
Banlanjo Umaru, Deepak Kumar Mishra, Shiva Senthil Kumar, Hao‐Han Pang, Brendan Devine, Komal Khan, Rachid Drissi   +6 more
wiley   +1 more source

Transcriptional reprogramming via signaling domains of CD2, CD28, and 4-1BB

iScience
Summary: Costimulatory signals provided to T cells during antigen encounter have a decisive role in the outcome of immune responses. Here, we used chimeric receptors harboring the extracellular domain of mouse inducible T cell costimulator (mICOS) to ...
Annika De Sousa Linhares, Sumana Sharma, Peter Steinberger, Judith Leitner   +3 more
doaj   +1 more source