Results 31 to 40 of about 57,622 (148)

Polyamine pathway inhibition as a novel therapeutic approach to treating neuroblastoma

open access: yesFrontiers in Oncology, 2012
Polyamines are highly regulated essential cations that are elevated in rapidly proliferating tissues, including diverse cancers. Expression analyses in neuroblastomas suggest that upregulation of polyamine pro-synthetic enzymes and downregulation of ...
Laura Dawn Gamble   +8 more
doaj   +1 more source

Polyamines and Their Metabolism: From the Maintenance of Physiological Homeostasis to the Mediation of Disease

open access: yesMedical Sciences, 2022
The polyamines spermidine and spermine are positively charged aliphatic molecules. They are critical in the regulation of nucleic acid and protein structures, protein synthesis, protein and nucleic acid interactions, oxidative balance, and cell ...
Kamyar Zahedi   +2 more
doaj   +1 more source

Polyamine Oxidases Play Various Roles in Plant Development and Abiotic Stress Tolerance

open access: yesPlants, 2019
Polyamines not only play roles in plant growth and development, but also adapt to environmental stresses. Polyamines can be oxidized by copper-containing diamine oxidases (CuAOs) and flavin-containing polyamine oxidases (PAOs). Two types of PAOs exist in
Zhen Yu, Dongyu Jia, Taibo Liu
doaj   +1 more source

Differential regulation of root arginine catabolism and polyamine metabolism in clubroot-susceptible and partially resistant Arabidopsis genotypes [PDF]

open access: yes, 2008
The hypertrophy and hyperplasia of infected roots into clubs are the intrinsic characteristics of clubroot, one of the economically most important diseases in Brassica crops worldwide.
Jubault, Mélanie   +8 more
core   +1 more source

Assay of Ornithine Decarboxylase and Spermidine/Spermine N1-acetyltransferase Activities

open access: yesBio-Protocol, 2014
The polyamines, spermidine (Spd) and spermine, and their diamine precursor putrescine, are important regulators of various cellular functions, such as proliferation and differentiation.
Mervi Hyvönen   +2 more
doaj   +1 more source

Polyamine Metabolism in Disease and Polyamine-Targeted Therapies [PDF]

open access: yes, 2019
Polyamines are ubiquitous polycations essential for all cellular life. The most common polyamines in eukaryotes, spermine, spermidine, and putrescine, exist in millimolar intracellular concentrations that are tightly regulated through biosynthesis ...
Murray-Stewart, Tracy
core   +1 more source

Transcriptome Analysis of Redox Systems and Polyamine Metabolic Pathway in Hepatoma and Non-Tumor Hepatocyte-like Cells

open access: yesBiomolecules, 2023
Reactive oxygen species (ROS) play a major role in the regulation of various processes in the cell. The increase in their production is a factor contributing to the development of numerous pathologies, including inflammation, fibrosis, and cancer ...
Olga N. Ivanova   +10 more
doaj   +1 more source

Polyamine Oxidase-Generated Reactive Oxygen Species in Plant Development and Adaptation: The Polyamine Oxidase—NADPH Oxidase Nexus

open access: yesAntioxidants, 2022
Metabolism and regulation of cellular polyamine levels are crucial for living cells to maintain their homeostasis and function. Polyamine oxidases (PAOs) terminally catabolize polyamines or catalyse the back-conversion reactions when spermine is ...
Péter Benkő   +2 more
doaj   +1 more source

Ribavirin Induces Polyamine Depletion via Nucleotide Depletion to Limit Virus Replication

open access: yesCell Reports, 2019
Summary: Common antivirals include nucleoside or nucleotide analogs with base prodrugs. The antiviral ribavirin, a US Food and Drug Administration (FDA)-approved nucleoside antimetabolite, halts guanine production, mutagenizes viral genomes, and ...
Patrick M. Tate   +2 more
doaj   +1 more source

Anticancer Cytotoxic Activity of Bispidine Derivatives Associated with the Increasing Catabolism of Polyamines

open access: yesMolecules, 2022
Polyamine (PA) catabolism is often reduced in cancer cells. The activation of this metabolic pathway produces cytotoxic substances that might cause apoptosis in cancer cells.
Ekaterina V. Neborak   +10 more
doaj   +1 more source

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