Results 41 to 50 of about 63,812 (294)

Norspermidine is not a self-produced trigger for biofilm disassembly [PDF]

open access: yes, 2014
Formation of Bacillus subtilis biofilms, consisting of cells encapsulated within an extracellular matrix of exopolysaccharide and protein, requires the polyamine spermidine.
Stanley-Wall, Nicola R.; id_orcid   +8 more
core   +1 more source

Investigation of The Roles of Hydrogen Peroxide and NADPH Oxidase in The Regulation of Polyamine Metabolism in Maize Plants under Drought Stress Conditions

open access: yesJournal of Agricultural Sciences, 2022
The relationship between hydrogen peroxide and the metabolism of polyamines and the role of NADPH oxidase (NOX) in that relationship under drought conditions remains unclear.
Aykut Sağlam   +3 more
doaj   +1 more source

Plant Polyamines [PDF]

open access: yesPlants, 2020
Polyamines are small organic compounds found in all living organisms. According to the high degree of positive charge at physiological pH, they interact with negatively charged macromolecules, such as DNA, RNA, and proteins, and modulate their activities.
openaire   +3 more sources

The role of polyamine metabolism in remodeling immune responses and blocking therapy within the tumor immune microenvironment

open access: yesFrontiers in Immunology, 2022
The study of metabolism provides important information for understanding the biological basis of cancer cells and the defects of cancer treatment. Disorders of polyamine metabolism is a common metabolic change in cancer.
Jiachun Lian   +18 more
doaj   +1 more source

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 in Soybeans [PDF]

open access: yesPlant Physiology, 1972
Putrescine, spermidine, and spermine were three main polyamines isolated from soybeans and partially characterized. Occurrence of polyamines in soybeans was established by separating trichloroacetic acid extracts of soybeans by cationic exchange column chromatography, identification with thin layer chromatography, paper electrophoresis, mass spectral ...
openaire   +2 more sources

Polyamines in Halophytes [PDF]

open access: yesFrontiers in Plant Science, 2019
Polyamines (PAs) are related to many aspects of the plant's life cycle, including responses to biotic and abiotic stress. On the other hand, halophytic plants are useful models for studying salt tolerance mechanisms related to the adaptive strategies that these plants present in adverse environments.
Milagros Bueno, María-Pilar Cordovilla
openaire   +3 more sources

Antitumor potential of polyamines in cancer

open access: yesActa Biochimica et Biophysica Sinica
The dysregulation of polyamines in tumors has made polyamine metabolism an appealing target for cancer therapy. Gene mutations drive the reprogramming of polyamine metabolism in tumors, presenting promising opportunities for clinical treatment.
Liu He   +6 more
doaj   +1 more source

Structural basis of antizyme-mediated regulation of polyamine homeostasis

open access: yes, 2017
Polyamines are organic polycations essential for cell growth and differentiation; their aberrant accumulation is often associated with diseases, including many types of cancer.
詹迺立   +1 more
core   +1 more source

The mechanisms by which polyamines accelerate tumor spread

open access: yesJournal of Experimental & Clinical Cancer Research, 2011
Increased polyamine concentrations in the blood and urine of cancer patients reflect the enhanced levels of polyamine synthesis in cancer tissues arising from increased activity of enzymes responsible for polyamine synthesis. In addition to their de novo
Soda Kuniyasu
doaj   +1 more source

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