Results 91 to 100 of about 341,882 (288)

Inhibition of SIRT7 Overcomes Radioresistance in Pancreatic Neuroendocrine Tumors by Reactivating MEN1 Expression

Advanced Science, EarlyView.
Pancreatic neuroendocrine tumors frequently silence MEN1 through epigenetic mechanisms. Here, SIRT7 recruits DNMT1 to the MEN1 promoter, drives hypermethylation, and enhances DNA repair. Inhibiting SIRT7 restores MEN1, reduces MRN complex abundance, impairs double‐strand break repair, and sensitizes PanNET models to radiation, supporting SIRT7 as a ...
Jianyun Jiang, Yan Wang, Yi Qin, Luohai Chen, Xiaowu Xu, Guixiong Fan, Desheng Jing, Miaoyan Wei, Xianjun Yu, Junfeng Xu, Shunrong Ji, Jie Chen   +11 more
wiley   +1 more source

Loss of tet methyl cytosine dioxygenase 3 (TET3) enhances cardiac fibrosis via modulating the DNA damage repair response

Clinical Epigenetics
Background Cardiac fibrosis is the hallmark of all forms of chronic heart disease. Activation and proliferation of cardiac fibroblasts are the prime mediators of cardiac fibrosis.
Sandip Kumar Rath, Gunsmaa Nyamsuren, Björn Tampe, David Sung-wen Yu, Melanie S. Hulshoff, Denise Schlösser, Sabine Maamari, Michael Zeisberg, Elisabeth M. Zeisberg   +8 more
doaj   +1 more source

Determination of the DNA repair pathways utilised by acute lymphoblastic leukaemia cells following daunorubicin treatment

BMC Research Notes, 2019
Objective DNA double strand breaks (DNA-DSBs) are among the most lethal DNA lesions leading to genomic instability and repaired by either homologous recombination (HR) or the non-homologous end joining (NHEJ) mechanisms.
Hussain Mubarak Al-Aamri, Helen R. Irving, Terri Meehan-Andrews, Christopher Bradley   +3 more
doaj   +1 more source

Icariin Enhances the Enzymatic Activity of N‐acetylgalactosaminidase to Augment Akkermansia Abundance in Gut Microbiota for Improved PD‐1 Blockade Efficacy in Tumor Suppression

Advanced Science, EarlyView.
Icariin promoted the growth of Akk by enhancing the activity of N‐acetylgalactosaminidase (Amuc_0920), which enhanced mucin utilization and provided a favorable nutrient environment for bacterial growth. This icariin‐mediated enrichment of Akk further reshaped the tumor microenvironment and promoted CD8+ T cell infiltration, ultimately synergizing with
Shuangying Qiao, Liu Yang, Haibang Hao, Qiuxia Ding, Feng Ding, Zheng Chen, Jinfang Zhang, Yun He, Meng Li, Jun Xu, Chao Wang, Aiping Lu, Fangfei Li   +12 more
wiley   +1 more source

HNRNPU K181 Lactylation Drives Cervical Cancer Growth by Upregulating PHGDH and Reprogramming Serine Metabolism

Advanced Science, EarlyView.
Lactate in cervical cancer induces HNRNPU K181 lactylation, opposed by NAA50‐mediated acetylation and suppressed by Pazopanib. This lactylation enhances HNRNPU binding to PHGDH pre‐mRNA exon 1, maintaining exon 1‐containing transcripts and mRNA stability, thereby activating serine metabolism.
Chang Zhang, Qingfei Meng, Hui Jiao, Huixin Liu, Xiangchao Wang, Honglan Zhou, Yishu Wang   +6 more
wiley   +1 more source

Alternative end-joining mechanisms: a historical perspective

Frontiers in Genetics, 2013
In the presence of functional DNA repair pathways, DNA double-strand breaks (DSBs) are mainly repaired by non-homologous end-joining (NHEJ) or homologous recombination (HR), two conserved pathways that protect cells from aberrant chromosomal ...
Anabelle eDecottignies
doaj   +1 more source

[Non-homologous DNA end joining].

Postepy biochemii, 2006
DNA double strand breaks (DSB) are the most serious form of DNA damage. Repair of DSBs is important to prevent chromosomal fragmentation, translocations and deletions. Non-homologous end joining (NHEJ) is one of three major pathways for the repair of DSBs in human cells.
Tomasz, Popławski, Janusz, Błasiak
openaire   +1 more source

REPAIRtoire--a database of DNA repair pathways. [PDF]

, 2010
REPAIRtoire is the first comprehensive database resource for systems biology of DNA damage and repair. The database collects and organizes the following types of information: (i) DNA damage linked to environmental mutagenic and cytotoxic agents, (ii ...
Rother, Kristian, K. Poleszak, Papaj, Grzegorz, E. Osinska, Bujnicki, Janusz M, Lesiak, Justyna, G. Papaj, J. Lesiak, Milanowska, Kaja, J. Krwawicz, Kosinski, Jan, K. Rother, Krwawicz, Joanna, K. Milanowska, Poleszak, Katarzyna, Osinska, Ewelina, J. Kosinski, J. M. Bujnicki   +17 more
core   +1 more source

Liquid Metal Nanotransformers for Drug‐Resistant Pan‐Cancer Therapy in Patient‐Derived Organoids

Advanced Science, EarlyView.
Pan‐cancer therapies are severely limited in drug‐resistance patients due to genetic mutations and other factors, resulting in poor therapeutic outcomes and constrained clinical benefit. Liquid metal nanotransformers, a new class of shape‐transformable nanomaterials capable of dramatic morphological changes, offer a promising physical strategy to ...
Xiaojie Yuan, Xuelin Wang, Zhongyao Chen, Shuo Wang, Weining Gao, Ziyi Chen, Runyang Li, Cheng Hao, Lei Zhang, Qiongqiong Zhang, Ke Zhang, Mei Yu, Qian Liu, Jingxuan Wang, Huiping Li, Simpkins Fiona, Jing Liu, Qiang Liu, Peng Liu, Yawei Hu   +19 more
wiley   +1 more source

Chromosomal instability syndromes are sensitive to poly ADP-ribose polymerase inhibitors

Haematologica, 2008
Poly ADP-ribose polymerase inhibitors have been shown to target cells with homologous recombination DNA repair defects. We report that poly ADP-ribose polymerase inhibitors induces apoptosis in cells deficient in other key DNA repair components ...
Terry J. Gaymes, Sydney Shall, Farzin Farzaneh, Ghulam J. Mufti   +3 more
doaj   +1 more source