Results 61 to 70 of about 114,134 (356)

Critically short telomeres derepress retrotransposons to promote genome instability in embryonic stem cells

Cell Discovery, 2023
Telomeres, at the ends of chromosomes, protect chromosomes from fusion and preserve genomic stability. However, the molecular mechanisms underlying telomere attrition-induced genome instability remain to be understood.
Nannan Zhao, Guoxing Yin, Chun Liu, Weiyu Zhang, Yang Shen, Dan Wang, Zhenzhen Lin, Jiao Yang, Jian Mao, Renpeng Guo, Yongwang Zhang, Feng Wang, Zhe Liu, Xinyi Lu, Lin Liu   +14 more
doaj   +1 more source

Telomere shortening associated with increased levels of oxidative stress in sulfur mustard-exposed Iranian veterans [PDF]

, 2018
Sulfur Mustard (SM) is the most widely used chemical weapon. It was used in World War 1 and in the more recent Iran-Iraq conflict. Genetic toxicity and DNA alkylation effects of SM in molecular and animal experiments are well documented.
Ahmadimanesh, Mahnaz, BalaliMood, Mahdi, Behravan, Effat, Blain, Peter, Forghanifard, Mohammad Mahdi, Jowsey, Paul, Kalalinia, Fatemeh, Khateri, Shahriar, Moallem, Seyed Adel   +8 more
core   +1 more source

Derivation and characterization of retinal pigment epithelium from urine‐derived iPSCs

FEBS Open Bio, EarlyView.
Age‐related macular degeneration causes vision loss via RPE dysfunction and loss. Traditional iPSC therapies rely on invasive biopsies, limiting scalability. Here, we utilize urine‐derived stem cells as an accessible source to generate u‐iPSCs, successfully differentiated into pigmented RPE. This “Urine‐to‐Retina” platform provides a promising path for
Daniella Beiner, Hainan Zhu, Carol Christine Bosholm, Heuy‐Ching Wang, Tracy Criswell, Anthony Atala, Jian‐Xing Ma, Yuanyuan Zhang   +7 more
wiley   +1 more source

Long telomeres: too much of a good thing

Biomolecular Concepts, 2012
Telomeres, the physical ends of linear eukaryotic chromosomes, protect chromosome ends from end fusions and degradation. Telomere length is tightly regulated to ensure that telomeres are neither too short nor too long.
Chang Michael
doaj   +1 more source

An H2A Histone Isotype, H2ac, Associates with Telomere and Maintains Telomere Integrity. [PDF]

PLoS ONE, 2016
Telomeres are capped at the ends of eukaryotic chromosomes and are composed of TTAGGG repeats bound to the shelterin complex. Here we report that a replication-dependent histone H2A isotype, H2ac, was associated with telomeres in human cells and co ...
Chia-Hsin Su, Ching Cheng, Tsai-Yu Tzeng, I-Hsuan Lin, Ming-Ta Hsu   +4 more
doaj   +1 more source

Telomere protein complexes and their role in lymphoid malignancies [PDF]

, 2017
Telomeres are highly regulated and dynamic complexes that protect the genomic DNA and prevent the end of linear chromosomes from being misrecognized as a broken DNA.
Dos Santos, Patricia Carolina, Panero, Julieta, Slavutsky, Irma Rosa   +2 more
core  

Natural Products as Geroprotective Modulators in Diabetic Nephropathy: A Mechanistic Framework Integrating Aging Hallmarks and the AMPK–SIRT1–Nrf2 Axis

Aging and Cancer, EarlyView.
Natural products target the aging kidney in diabetic nephropathy by restoring the AMPK–SIRT1–Nrf2 axis, reducing oxidative stress, inflammation, fibrosis, and cellular senescence while enhancing mitochondrial biogenesis and antioxidant defenses.
Sherif Hamidu, Latif Adams, Eunice Ampem‐Danso, Justice Kumi, Abigail Aning, Fatima Hamidu, Mustapha Abdul Mumin Mohammed, Ayuba Nii Darku Ankrah, Seth Kwabena Amponsah   +8 more
wiley   +1 more source

The role of Schizosaccharomyces pombe SUMO ligases in genome stability [PDF]

, 2007
SUMOylation is a post-translational modification that affects a large number of proteins, many of which are nuclear. While the role of SUMOylation is beginning to be elucidated, it is clear that understanding the mechanisms that regulate the process is ...
A. Skilton, al-Khodairy, Allshire, Allshire, Andrews, Apionishev, Branzei, Chakrabarti, Cheng, E.A. Outwin, Ekwall, F.-X. Ogi, F.Z. Watts, Grishchuk, Ho, Ho, Hoege, Hooker, J.C.-Y. Ho, Johnson, Kagey, Kahyo, L. Gardner, L.K. Boyd, M.A.M. Trickey, McDonald, Okubo, Pichler, Potts, Reindle, Sachdev, Schmidt, Sergeant, Shayeghi, Shin, Stelter, Strahl-Bolsinger, Tanaka, Taylor, Thon, Watts, Xhemalce, Xhemalce, Zhao, Zhao   +44 more
core   +2 more sources

Telomere recombination and alternative telomere lengthening mechanisms

Frontiers in Bioscience, 2013
Telomeres are nucleoprotein structures at the ends of linear chromosomes that protect them from being recognized as DNA double stranded breaks. Telomeres shorten with every cell division and in the absence of the checkpoint mechanisms critical telomere shortening leads to chromosome end fusions and genomic instability.
Irena, Draskovic, Arturo, Londono Vallejo   +1 more
openaire   +2 more sources

Aging Is a Key Driver for Adult Acute Myeloid Leukemia

Aging and Cancer, EarlyView.
Acute myeloid leukemia (AML) is a classical age‐related hematologic malignancy, and a key driver of AML is aging, which profoundly regulates intrinsic factors such as genomic instability, epigenetic reprogramming, and metabolic dysregulation, and alters bone marrow microenvironment.
Rong Yin, Haojian Zhang
wiley   +1 more source