Results 51 to 60 of about 67,342 (249)

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source

Limits of [18F]-FLT PET as a biomarker of proliferation in oncology. [PDF]

PLoS ONE, 2013
Non-invasive imaging biomarkers of cellular proliferation hold great promise for quantifying response to personalized medicine in oncology. An emerging approach to assess tumor proliferation utilizes the positron emission tomography (PET) tracer 3'-deoxy-
Eliot T McKinley, Gregory D Ayers, R Adam Smith, Samir A Saleh, Ping Zhao, Mary Kay Washington, Robert J Coffey, H Charles Manning   +7 more
doaj   +1 more source

In silico investigation of acyclovir derivatives potency against herpes simplex virus

Scientific African, 2023
Herpes simplex virus (HSV) is a major human pathogen, sub-divided into two types: HSV-1 which causes oral and perioral infections and HSV-2 which causes genital herpes.
Clive M. Nyaribo, Florence A. Ng'ong'a, Steven G. Nyanjom   +2 more
doaj   +1 more source

Inhibition of Thymidine Kinase by Cortisone

Experimental Biology and Medicine, 1970
SummaryIn vivo and in vitro studies revealed that incorporation of thymidine-3H into DNA was inhibited in Ehrlich ascites cells treated with cortisone 24 hr before. Incorporations of other DNA precursors were not inhibited. Thymidine kinase was markedly inhibited by pretreatment with cortisone.
T, Kaneko, G A, LePage
openaire   +2 more sources

Unchanged thymidine triphosphate pools and thymidine metabolism in two lines of thymidine kinase 2-mutated fibroblasts.

, 2009
Mitochondrial thymidine kinase (TK2) catalyzes the phosphorylation of thymidine in mitochondria. Its function becomes essential for dTTP synthesis in noncycling cells, where cytosolic dTTP synthesis via R1/R2 ribonucleotide reductase and thymidine kinase
FRANZOLIN, ELISA, VILA' MR, BIANCHI, VERA, Vera Bianchi, Maya R. Vilà, RAMPAZZO, CHIARA, Miriam Frangini, LARA MC, Chiara Rampazzo, MARTI' R, Mari‐Carmen Lara, Ramon Martí, FRANGINI, MIRIAM, Elisa Franzolin   +13 more
core   +1 more source

Interpreting the effects of DNA polymerase variants at the structural level

Molecular Oncology, EarlyView.
Using MAVISp and molecular dynamics simulations, we analyzed over 60 000 missense variants in POLE and POLD1 from ClinVar, COSMIC, cBioPortal, and saturation mutagenesis. Identified mechanistic indicators, including stability, binding, and long‐range, enable structural interpretation, providing ACMG‐like evidence for possible reclassification of VUS ...
Matteo Arnaudi, Karolina Krzesińska, Ludovica Beltrame, Pablo Sánchez‐Izquierdo Besora, Matteo Tiberti, Mef Nilbert, Anna Rohlin, Elena Papaleo   +7 more
wiley   +1 more source

β2-Adrenergic receptor agonist enhances the bystander effect of HSV-TK/GCV gene therapy in glioblastoma multiforme via upregulation of connexin 43 expression

Molecular Therapy: Oncolytics, 2022
Glioblastoma multiforme (GBM) is the most invasive form of primary brain astrocytoma. Gene therapy using the herpes simplex virus thymidine kinase/ganciclovir (HSV-TK/GCV) is a new strategy for GBM treatment.
Saereh Hosseindoost, Seyed Mojtaba Mousavi, Ahmad Reza Dehpour, Seyed Amirhossein Javadi, Babak Arjmand, Ali Fallah, Mahmoudreza Hadjighassem   +6 more
doaj   +1 more source

MITF maintains genome stability in nonmelanocyte lineages

Molecular Oncology, EarlyView.
MITF is essential for melanocyte survival and acts as an oncogene in 10%–20% of melanomas. We show that MITF depletion causes genome instability in nonmelanocytic cells, leading to LATS2‐mediated P53 activation, cell cycle arrest, and apoptosis. This study highlights the role of MITF as a genome maintenance factor beyond the melanocyte lineage. Created
Drifa H. Gudmundsdottir, Adrián López García de Lomana, Thejus B. Venkatesh, Kritika Kirty, Snaevar Sigurdsson, Linda Vidarsdottir, Ramile Dilshat, Erla Sveinbjornsdottir, Snaedis Ragnarsdottir, Daniel H Magnusson, Maria R. Bustos, Eirikur Steingrimsson, Thorkell Gudjonsson, Stefan Sigurdsson   +13 more
wiley   +1 more source

The structural basis of unique substrate recognition by Plasmodium thymidylate kinase: Molecular dynamics simulation and inhibitory studies.

PLoS ONE, 2019
Plasmodium falciparum thymidylate kinase (PfTMK) showed structural and catalytic distinctions from the host enzyme rendering it a hopeful antiprotozoal drug target.
Mahmoud Kandeel, Yukio Kitade, Abdulla Al-Taher, Mohammed Al-Nazawi   +3 more
doaj   +1 more source

Remission of invasive, cancer stem-like glioblastoma xenografts using lentiviral vector-mediated suicide gene therapy

, 2009
Background: Glioblastoma is the most frequent and most malignant primary brain tumor with a poor prognosis. The translation of therapeutic strategies for glioblastoma from the experimental phase into the clinic has been limited by insufficient animal ...
Oleg Tsinkalovsky, Euskirchen Philipp, Tsanan Giroglou, Huszthy, Peter C., Giroglou Tsanan, Skaftnesmo, Kai Ove, Miletic, Hrvoje, Miletic Hrvoje, Peter C Huszthy, Kai Ove Skaftnesmo, Tsinkalovsky Oleg, von Laer Dorothee, Euskirchen, Philipp, Dorothee von Laer, Hrvoje Miletic, Laer, Dorothee von, Rolf Bjerkvig, Giroglou, Tsanan, Tsinkalovsky, Oleg, Huszthy Peter C., Skaftnesmo Kai Ove, Bjerkvig Rolf, Philipp Euskirchen, Bjerkvig, Rolf   +23 more
core   +1 more source