Results 131 to 140 of about 55,108 (306)

Nuclear EGFR modulation of DNA repair

, 2011
Overexpression of the epidermal growth factor receptor (EGFR) is associated with resistance to chemotherapy and radiotherapy. EGFR involvement, in repair of radiation-induced DNA damage, is mediated by association with the catalytic subunit of DNA ...
Liccardi, G.
core  

Spatiotemporal Sequential Delivery of Chidamide Regulates Macrophage Reprogramming in Lymphoma Microenvironment Through HDACs‐STAT3 Pathway

Advanced Science, EarlyView.
Our study identifies the HDACs‐STAT3 axis as key regulator for M2 macrophage accumulation in DLBCL. We developed Chid@M2pep‐EVs/TP, a pH‐responsive drug delivery system for M2 macrophage specific chidamide administration. By coupling M2‐targeted chidamide with EVs‐mediated delivery, this system reprograms M2 to M1 via HDAC inhibition and STAT3 ...
Bo Dai, Shuo Wang, Xiaotong Peng, Kunpeng Wu, Mengyao Wu, Zhaoning Lu, Haoshu Zhong, Xiaohan Qian, Shuiyi Tan, Hui Yang, Tanlezi Sun, Jing Wang, Jie Zhang, Hua Jiang, Yin Tong, Tong Chen   +15 more
wiley   +1 more source

The multifaceted functions of DNA‐PKcs: implications for the therapy of human diseases

MedComm
The DNA‐dependent protein kinase (DNA‐PK), catalytic subunit, also known as DNA‐PKcs, is complexed with the heterodimer Ku70/Ku80 to form DNA‐PK holoenzyme, which is well recognized as initiator in the nonhomologous end joining (NHEJ) repair after double
Jinghong Wu, Liwei Song, Mingjun Lu, Qing Gao, Shaofa Xu, Ping‐Kun Zhou, Teng Ma   +6 more
doaj   +1 more source

Perivascular Matrix Densification Dysregulates Angiogenesis and Activates Pro‐Inflammatory Endothelial Cells

Advanced Science, EarlyView.
Perivascular matrix densification promotes the emergence of aberrant endothelial tip cells (ATECs) that invade and persist within fibrotic microenvironments. Using in vivo lineage tracing and a human microvessel model, this study shows that fibrous matrix cues destabilize VE‐cadherin–mediated junctions to gate TGF‐β signaling, inducing a pro ...
Jingyi Xia, William Y. Wang, Kyle A. Jacobs, Kairav Maniar, Daphne Lin, Evan H. Jarman, Daniel L. Matera, Kristen Loesel, Christopher D. Davidson, Harrison L. Hiraki, Xiaotian Tan, Eve H. Shikanov, Robert N. Kent, Carole Parent, Xudong Fan, Ariella Shikanov, Matthew L. Kutys, Brendon M. Baker   +17 more
wiley   +1 more source

Transcription-coupled nucleotide excision repair and its regulation by the DNA damage checkpoint

, 2009
Elaborate DNA repair mechanisms have evolved, allowing cells to repair damages in their genomes. Nucleotide excision repair (NER) removes a variety of helix-distorting lesions, including those caused by ultraviolet (UV) irradiation.
Taschner, M.J.
core  

POLQ mediated end-joining promotes DNA damage tolerance in neuroblastoma

Translational Oncology
Segmental chromosomal alterations, including 11q deletion and 17q gain, are the strongest predictors of pediatric neuroblastoma relapse. These alterations result from unbalanced translocations linked to erroneous DNA repair.
Sahiti Chukkapalli, Keyonna Williams, Biao Hu, Kimber Converso-Baran, Olivia Tussing, Patrick O'Brien, Nouri Neamati, Erika A. Newman   +7 more
doaj   +1 more source

Genome‐Wide CRISPR Screen Identifies a microRNA Orchestrating Pleiotropic Resistance to Targeted Therapy and T Cell Immunity in Melanoma

Advanced Science, EarlyView.
A genome‐wide microRNA CRISPR screen identifies miR‐18a as a master regulator of cross‐resistance in melanoma. Loss of miR‐18a activates the AJUBA–YAP/Hippo axis to confer BRAFi resistance and enhances THBS1–CD47 interaction to impair CD8+ T cell immunity. hnRNP A1 is identified as an upstream regulator of miR‐18a processing.
Zhao Wang, Haotian Liu, Xueqi Wang, Jianjin Teng, Zihan Zheng, Jingya Zhang, Wanyi Xiao, Qian Liang, Jiaxin Li, Xiaomeng Jia, Xin Feng, Hongzhang Cui, Menghan Luo, Tielong Yang, Liuxing Wu, Ke Zhao, Weilong Yang, Mulin Jun Li, Dandan Huang, Jilong Yang   +19 more
wiley   +1 more source

Mechanostimulatory Cues Determine Intestinal Fibroblast Fate and Profibrotic Remodeling in a Physiodynamic Human Gut‐on‐a‐Chip

Advanced Science, EarlyView.
A healthy gut barrier shields underlying fibroblasts from luminal shear forces, illustrating that “good fences make good neighbors.” Barrier damage exposes fibroblasts to shear stress, inducing cell death and the emergence of stress‐adapted, profibrotic fibroblasts. Sustained shear exposure promotes the formation of stiff aggregates of mechanoadapative
Soyoun Min, Nam Than, Yong Cheol Shin, Elif G. Ertugral, Chandrasekhar R. Kothapalli, Olumuyiwa Awoniyi, Hyun Jung Kim   +6 more
wiley   +1 more source

A small RNA response at DNA ends in Drosophila

, 2012
Small RNAs have been implicated in numerous cellular processes, including effects on chromatin structure and the repression of transposons. We describe the generation of a small RNA response at DNA ends in Drosophila that is analogous to the recently ...
Förstemann, Klaus, Böttcher, Romy, Michalik, Katharina M.   +2 more
core   +1 more source

A mutational scar-based genome-wide map of DNA double-strand break repair

Nature Communications
Genome alterations arise from inaccurate DNA repair and accumulate as distinct mutational signatures. Here, we systematically interrogate the contribution of every protein-coding gene to double-strand break (DSB) repair by generating high-resolution ...
Marco Barazas, Robin van Schendel, Marcel Tijsterman   +2 more
doaj   +1 more source