Results 51 to 60 of about 827,170 (307)

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Histopathological Change of Oral Malignant Tumour and Epithelial Dysplasia Subjected to Photodynamic Therapy [PDF]

eJournal of Oral Maxillofacial Research, 2010
Objectives: The purpose of this study is to analyze the morphological change of cell nuclei and the change of proliferating activity of oral malignancy and epithelial dysplasia between before and after photodynamic therapy in order to predict recurrence ...
Masataka Uehara, Hisazumi Ikeda, Mihoko Nonaka, Izumi Asahina, Izumi Asahina   +3 more
doaj  

Subcellular Location of Tirapazamine Reduction Dramatically Affects Aerobic but Not Anoxic Cytotoxicity

Molecules, 2020
Hypoxia is an adverse prognostic feature of solid cancers that may be overcome with hypoxia-activated prodrugs (HAPs). Tirapazamine (TPZ) is a HAP which has undergone extensive clinical evaluation in this context and stimulated development of optimized ...
Chris P. Guise, Maria R. Abbattista, Robert F. Anderson, Dan Li, Rana Taghipouran, Angela Tsai, Su Jung Lee, Jeff B. Smaill, William A. Denny, Michael P. Hay, William R. Wilson, Kevin O. Hicks, Adam V. Patterson   +12 more
doaj   +1 more source

Nuclisome—targeting the tumor cell nucleus

Tumor Biology, 2012
The Nuclisome concept builds on a novel two-step targeting strategy with the aim to deliver short-range Auger-electron-emitting radionuclides to nuclear DNA of tumor cells. The concept is based on the use of Nuclisome-particles, i.e., tumor-targeted PEG-stabilized liposomes loaded with a unique DNA-intercalating compound that enables specific and ...
Gedda, Lars, Edwards, Katarina
openaire   +5 more sources

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

LR White is preferable to Unicryl for immunogold detection of fixationsensitive nuclear antigens

European Journal of Histochemistry, 2010
The purpose of this study was to compare two electron microscopy embedding media – LR White and Unicryl – with regard to cell morphologyical and immunohistochemical preservation properties for the study of fixation-sensitive nuclear antigens.
V. V. Philimonenko, J. Janácek, P. Hozák   +2 more
doaj   +1 more source

Quantitative Analysis of Cell Nucleus Organisation

PLoS Computational Biology, 2007
There are almost 1,300 entries for higher eukaryotes in the Nuclear Protein Database. The proteins' subcellular distribution patterns within interphase nuclei can be complex, ranging from diffuse to punctate or microspeckled, yet they all work together in a coordinated and controlled manner within the three-dimensional confines of the nuclear volume ...
Shiels, Carol, Adams, Niall M., Islam, Suhail A., Stephens, David A., Freemont, Paul S.   +4 more
openaire   +6 more sources

Function‐driven design of a surrogate interleukin‐2 receptor ligand

FEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Pressure-driven release of viral genome into a host nucleus is a mechanism leading to herpes infection

eLife, 2019
Many viruses previously have been shown to have pressurized genomes inside their viral protein shell, termed the capsid. This pressure results from the tight confinement of negatively charged viral nucleic acids inside the capsid.
Alberto Brandariz-Nuñez, Ting Liu, Te Du, Alex Evilevitch   +3 more
doaj   +1 more source