[HTML][HTML] Spatial-temporal genome regulation in stress-response and cell-fate change

J Erenpreisa, A Giuliani, K Yoshikawa, M Falk… - International Journal of …, 2023 - mdpi.com
Complex functioning of the genome in the cell nucleus is controlled at different levels:(a) the
DNA base sequence containing all relevant inherited information;(b) epigenetic pathways …

Protonation-mediated DNA tile self-assembly with nuclease resistance characteristic for signal-amplified detection of microRNAs

Y Peng, D Li, B Qiao, Z Gao, Q Pu, H Pang, X Lai… - Biosensors and …, 2024 - Elsevier
DNA nanotechnology, developing rapidly in recent years, has unprecedented superiorities
in biological application-oriented research including high programmability, convenient …

[HTML][HTML] Higher-order structure of DNA determines its positioning in cell-size droplets under crowded conditions

T Nishio, Y Yoshikawa, K Yoshikawa - Plos one, 2021 - journals.plos.org
Background It is becoming clearer that living cells use water/water (w/w) phase separation to
form membraneless organelles that exhibit various important biological functions. Currently …

[HTML][HTML] Characteristic effect of hydroxyurea on the higher-order structure of DNA and gene expression

H Ogawa, T Nishio, Y Yoshikawa, K Sadakane… - Scientific Reports, 2024 - nature.com
Hydroxyurea (HU; hydroxycarbamide) is a chemotherapy medication used to treat various
types of cancer and other diseases such as sickle cell anemia. HU inhibits DNA synthesis by …

[HTML][HTML] Caging Polycations: Effect of Increasing Confinement on the Modes of Interaction of Spermidine3+ With DNA Double Helices

T Vasiliu, F Mocci, A Laaksonen… - Frontiers in …, 2022 - frontiersin.org
Polyamines have important roles in the modulation of the cellular function and are
ubiquitous in cells. The polyamines putrescine2+, spermidine3+, and spermine4+ represent …

[HTML][HTML] Activation/inhibition of gene expression caused by alcohols: Relationship with the viscoelastic property of a DNA molecule

K Fujino, T Nishio, K Fujioka, Y Yoshikawa… - Polymers, 2022 - mdpi.com
Alcohols are used in the life sciences because they can condense and precipitate DNA.
Alcohol consumption has been linked to many diseases and can alter genetic activity. In the …

[HTML][HTML] The anticancer drug daunomycin directly affects gene expression and DNA structure

T Nishio, Y Shimada, Y Yoshikawa… - International Journal of …, 2023 - mdpi.com
Daunomycin (DM), an anthracycline antibiotic, is frequently used to treat various cancers,
but the direct effects of DM on gene expression and DNA structure are unclear. We used an …

Structural change study of pepsin in the presence of spermidine trihydrochloride: Insights from spectroscopic to molecular dynamics methods

A Habibi, S Farhadian, B Shareghi… - … Acta Part A: Molecular …, 2023 - Elsevier
Spermidine is an aliphatic polyamine that directs a set of biological processes. This work
aimed to use UV–Vis spectroscopy, fluorescence spectroscopy, thermal stability, kinetic …

Markedly Different Effects of Monovalent Cations on the Efficiency of Gene Expression

T Nishio, T Masaoka, Y Yoshikawa… - Advanced …, 2023 - Wiley Online Library
The effect of monovalent cations on a cell‐free transcription–translation (TX–TL) system is
examined using a luciferase assay. It is found that the potency for all ions analyzed here is in …

Quantitative evaluation of DNA double-strand breaks (DSBs) through single-molecule observation

K Yoshikawa - The Enzymes, 2022 - Elsevier
By adapting the method of single molecular observation for individual DNAs, it will be shown
that reliable analysis of double-strand breaks, DSBs, becomes possible for various kinds of …