The structure and function of DNA G-quadruplexes

J Spiegel, S Adhikari, S Balasubramanian - Trends in Chemistry, 2020 - cell.com
Guanine-rich DNA sequences can fold into four-stranded, noncanonical secondary
structures called G-quadruplexes (G4s). G4s were initially considered a structural curiosity …

The impact of oxidative DNA damage and stress on telomere homeostasis

RP Barnes, E Fouquerel, PL Opresko - Mechanisms of ageing and …, 2019 - Elsevier
Telomeres are dynamic nucleoprotein-DNA structures that cap and protect linear
chromosome ends. Because telomeres shorten progressively with each replication, they …

Carcinogens and DNA damage

JL Barnes, M Zubair, K John, MC Poirier… - Biochemical Society …, 2018 - portlandpress.com
Humans are variously and continuously exposed to a wide range of different DNA-damaging
agents, some of which are classed as carcinogens. DNA damage can arise from exposure to …

G-quadruplexes at telomeres: friend or foe?

TM Bryan - Molecules, 2020 - mdpi.com
Telomeres are DNA-protein complexes that cap and protect the ends of linear
chromosomes. In almost all species, telomeric DNA has a G/C strand bias, and the short …

DNA damage response and immune defense

C Nastasi, L Mannarino, M D'Incalci - International journal of molecular …, 2020 - mdpi.com
DNA damage is the cause of numerous human pathologies including cancer, premature
aging, and chronic inflammatory conditions. The DNA damage response (DDR), in turn …

Crosstalk between G-quadruplex and ROS

S Wu, L Jiang, L Lei, C Fu, J Huang, Y Hu… - Cell Death & …, 2023 - nature.com
The excessive production of reactive oxygen species (ROS) can lead to single nucleic acid
base damage, DNA strand breakage, inter-and intra-strand cross-linking of nucleic acids …

Impact of oxidative stress on telomere biology

W Ahmed, J Lingner - Differentiation, 2018 - Elsevier
Telomere integrity is essential for genome stability and it regulates cell proliferation and
tissue renewal. Several lines of evidence indicate that telomeres are particularly sensitive to …

Exploring the causal relationship between telomere biology and Alzheimer's disease

XY Kuan, NSA Fauzi, KY Ng, A Bakhtiar - Molecular Neurobiology, 2023 - Springer
Telomeres, also known as the “protective caps” of our chromosomes, shorten with each cell
cycle due to the end replication problem. This process, termed telomere attrition, is …

Non-duplex G-quadruplex structures emerge as mediators of epigenetic modifications

AK Mukherjee, S Sharma, S Chowdhury - Trends in Genetics, 2019 - cell.com
The role of non-duplex DNA, the guanine-quadruplex structure in particular, is becoming
widely appreciated. Increasing evidence in the last decade implicates quadruplexes in …

NRF2 signaling pathway and telomere length in aging and age-related diseases

A Medoro, L Saso, G Scapagnini, S Davinelli - Molecular and Cellular …, 2024 - Springer
The transcription factor nuclear factor erythroid 2-related factor 2 (NRF2) is well recognized
as a critical regulator of redox, metabolic, and protein homeostasis, as well as the regulation …