Results 61 to 70 of about 57,792 (238)

Characterization of the Interaction of Known G‐quadruplex Ligands With a Minimal i‐Motif Structure

Chemistry – A European Journal, EarlyView.
The destabilization of a minimal i‐Motif (iM) structure by TMPyP4 is driven by ligand recognition of one terminal iM structural domain. ABSTRACT Peculiar genomic regions are prone to evolve transiently from double‐helix DNA to noncanonical secondary structures in response to physiological stress.
Davide Auricchio, Marko Trajkovski, Janez Plavec, Claudia Sissi   +3 more
wiley   +1 more source

A Cytosine‑Bulged (3+1) Hybrid G‑Quadruplex Formed by the Chicken DNA Replication Origin

Chemistry – A European Journal, EarlyView.
The first high‐resolution structure of an OGRE‐derived G‐quadruplex from the chicken β‐globin replication origin reveals an intramolecular three‐layer (3+1) hybrid fold with a cytosine bulge and an unprecedented 5'‐outer‐quartet anti guanine, creating a distinctive surface for molecular recognition.
Yingying You, Monica Ching Suen, Haitao Miao, Yanyan Geng, Rahman Ud Din, Mu Yuan, Qiang Xue, Xiaoting Li, Naining Xu, Zhihong Guo, Hon‐Ming Lam, Kwok‐Wai Lo, Changdong Liu, Guang Zhu   +13 more
wiley   +1 more source

Multi-step coordination of telomerase recruitment in fission yeast through two coupled telomere-telomerase interfaces

eLife, 2016
Tightly controlled recruitment of telomerase, a low-abundance enzyme, to telomeres is essential for regulated telomere synthesis. Recent studies in human cells revealed that a patch of amino acids in the shelterin component TPP1, called the TEL-patch, is
Xichan Hu, Jinqiang Liu, Hyun-IK Jun, Jin-Kwang Kim, Feng Qiao   +4 more
doaj   +1 more source

Systemic aging fuels heart failure: Molecular mechanisms and therapeutic avenues

ESC Heart Failure, Volume 12, Issue 2, Page 1059-1080, April 2025.
Abstract Systemic aging influences various physiological processes and contributes to structural and functional decline in cardiac tissue. These alterations include an increased incidence of left ventricular hypertrophy, a decline in left ventricular diastolic function, left atrial dilation, atrial fibrillation, myocardial fibrosis and cardiac ...
Zhuyubing Fang, Umar Raza, Jia Song, Junyan Lu, Shun Yao, Xiaohong Liu, Wei Zhang, Shujuan Li   +7 more
wiley   +1 more source

Telomeres, Telomerase, and Cancer [PDF]

New England Journal of Medicine, 2000
What accounts for the ability of cancer cells to proliferate in a manner that is out of control, whereas normal cells die after 40 to 60 cycles of replication?
openaire   +3 more sources

Retro‐Hetero‐Michael Addition Strategies in Organic Synthesis

European Journal of Organic Chemistry, EarlyView.
In this review, synthetic approaches to carbo‐ and heterocyclic compounds, including natural products, published in the last 15 years (2011–2025) which have either relied upon or included a retro‐hetero‐Michael addition step at any stage are discussed.
Dina Scarpi, Ernesto G. Occhiato
wiley   +1 more source

Renal fibroblasts are involved in fibrogenic changes in kidney fibrosis associated with dysfunctional telomeres

Experimental and Molecular Medicine
Tubulointerstitial fibrosis associated with chronic kidney disease (CKD) represents a global health care problem. We previously reported that short and dysfunctional telomeres lead to interstitial renal fibrosis; however, the cell-of-origin of kidney ...
Sarita Saraswati, Paula Martínez, Rosa Serrano, Diego Mejías, Osvaldo Graña-Castro, Ruth Álvarez Díaz, Maria A. Blasco   +6 more
doaj   +1 more source

Multi‐Cohort Analysis Reveals Genetic Predispositions to Clonal Hematopoiesis as Mutation‐Specific Risk Factors for Stroke

Advanced Genetics, Volume 6, Issue 1, March 2025.
This study comprehensively evaluated the differential effect of clonal hematopoiesis (CH) mutations on the risk of various stroke subtypes and functional recovery. It shows that TET2 is associated with small vessel stroke possibly via a pro‐inflammatory pathway. Abstract Recent observational studies have found an association between Clonal Hematopoesis
Shuyang Lin, Yang E. Li, Yan Wang
wiley   +1 more source

Hyperoside alleviates endometrial stromal cell senescence in unexplained recurrent spontaneous abortion via DHX9‐mediated R‐loop resolution

iMeta, EarlyView.
This study suggests that the food‐derived flavonoid hyperoside may act as a natural DExH‐box helicase 9 (DHX9) modulator, directly targeting Thr419 of DHX9 to help resolve pathological R‐loop accumulation. Consequently, it suppresses cyclic GMP‐AMP synthase‐stimulator of interferon genes (cGAS‐STING)‐driven endometrial stromal senescence and restores ...
Yuepeng Jiang, Hongli Zhao, Xinyi Ding, Haoling Zhang, Yadong Guo, Yiming Ma, Lingyi Cai, Qingnan Fan, Ruisi Peng, Fuyuan Yang, Doblin Sandai, Xianling Cao, Jiali Yao, Wenyi Wang, Zhiheng Lin, Wangzheqi Zhang, Jialin He, Aihua Zhang, Xiaoxuan Zhao   +18 more
wiley   +1 more source

The Regulation of Telomerase in Oncogenesis

Acta Naturae, 2009
The influence that the expression of the human (glial-derived neurotrophic factor (GDNF)) neurotrophic factor has on the morphology and proliferative activity of embryonic stem cells (SC) of a mouse with R1 lineage, as well as their ability to form embroid bodies (EB), has been studied.
Skvortzov, D., Rubzova, M., Zvereva, M., Kiselev, F., Donzova, O.   +4 more
openaire   +3 more sources