Results 51 to 60 of about 107,915 (237)

Photosensitivity and heat resistance conferred by BrdU incorporation upon a thymidine kinase-deficient mouse cell line with persistent mitochondrial enzyme activity [PDF]

open access: yes, 1975
The selective incorporation of 5-bromodeoxyuridine (BrdU) into mitochondrial DNA (mit-DNA) in the LM(TK-) ClID cell line, a thymidine kinase-deficient derivative of L fibroblasts with persistent mitochondrial enzyme activity, has been utilized to ...
Attardi, G.   +2 more
core  

Sorting Nexin 1 Down-Regulation Promotes Colon Tumorigenesis [PDF]

open access: yes, 2006
PURPOSE: Colon cancer is one of the most common human malignancies, yet studies have only begun to identify the multiple mechanisms that underlie the development of this tumor.
Bianchini, Michele   +10 more
core   +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

open access: yesMolecular 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   +6 more
doaj   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

open access: yesFEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata   +13 more
wiley   +1 more source

Effect of an antiandrogenic H2 receptor antagonist on hepatic regeneration in rats [PDF]

open access: yes, 1988
Because biochemical 'feminization' of the liver in males is observed with hepatic regeneration and because the hepatic regenerative response in females is greater than that in males, the posibility that antiandrogens might potentiate liver regeneration ...
Chapchap, P   +7 more
core  

In Vitro Mutagenic and Genotoxic Assessment of a Mixture of the Cyanotoxins Microcystin-LR and Cylindrospermopsin [PDF]

open access: yes, 2019
The co-occurrence of various cyanobacterial toxins can potentially induce toxic effects different than those observed for single cyanotoxins, as interaction phenomena cannot be discarded. Moreover, mixtures are a more probable exposure scenario. However,
Cameán Fernández, Ana María   +4 more
core   +1 more source

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

open access: yesPLoS 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   +3 more
doaj   +1 more source

Aptamer‐Based Delivery Systems for VEGF and NGF Modulation in Ocular Therapies

open access: yesAdvanced Healthcare Materials, EarlyView.
Aptamer‐based delivery systems targeting NGF and VEGF hold significant potential for precise and sustained treatment of complex diseases affecting both the anterior and posterior segments of the eye. This review critically summarizes current strategies for NGF and VEGF delivery as well as VEGF sequestration, providing a clinical perspective on how ...
Nadine Best   +5 more
wiley   +1 more source

Thymidine Kinase in IDU Resistance.

open access: yesExperimental Biology and Medicine, 1965
SummaryStudies were done to determine whether 5-iodo-2′-deoxyuridine resistance of herpes simplex in rabbit corneal infection was a function of thymidine kinase deficiency in the viral genome. Herpes simplex virus passed in rabbit kidney cells in the presence of 5-iodo-2′-deoxyuridine was resistant to it in vivo although this resistant virus induced ...
Y, Centifanto, H E, Kaufman
openaire   +2 more sources

3D Soft Hydrogels Induce Human Mesenchymal Stem Cells “Deep” Quiescence

open access: yesAdvanced Healthcare Materials, EarlyView.
Three‐dimensional soft hydrogels mimicking the bone marrow niche induce deep quiescence in human mesenchymal stem cells. Unlike 2D culture, 3D matrices halt proliferation, regulate cell‐cycle and quiescence markers, and downregulate mTORC1 signaling, preserving stem cell phenotype and therapeutic potential ex vivo.
David Boaventura Gomes   +11 more
wiley   +1 more source

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