Results 11 to 20 of about 58,354 (282)

Polyamine homoeostasis [PDF]

open access: yesEssays in Biochemistry, 2009
The polyamines are essential for a variety of functions in the mammalian cell. Although their specific effects have not been fully elucidated, it is clear that the cellular polyamines have to be kept within certain levels for normal cell function.
Persson, Lo
core   +5 more sources

Development of Polyamine Lassos as Polyamine Transport Inhibitors [PDF]

open access: yesACS Medicinal Chemistry Letters, 2022
Nine- and twelve-membered triaza-macrocycles were appended to one end of homospermidine to make polyamine lassos. These compounds were shown to be potent polyamine transport inhibitors (PTIs) using pancreatic ductal adenocarcinoma L3.6pl cells, which have high polyamine transport activity. The smaller triazacyclononane-based lasso significantly reduced
Aiste Dobrovolskaite   +3 more
openaire   +3 more sources

Biosynthesis of polyamines and polyamine-containing molecules [PDF]

open access: yesBiochemical Journal, 2016
Polyamines are evolutionarily ancient polycations derived from amino acids and are pervasive in all domains of life. They are essential for cell growth and proliferation in eukaryotes and are essential, important or dispensable for growth in bacteria.
openaire   +3 more sources

The polyamine transporter ATP13A3 mediates difluoromethylornithine‐induced polyamine uptake in neuroblastoma [PDF]

open access: yesMolecular Oncology
High‐risk neuroblastomas, often associated with MYCN protooncogene amplification, are addicted to polyamines, small polycations vital for cellular functioning.
Mujahid Azfar   +19 more
doaj   +2 more sources

Functionalized polyamine synthesis with photoredox catalysis [PDF]

open access: yes, 2023
Polyamines, such as putrescine and spermidine, are pivotal in various biological processes across living organisms. Despite their significance, structurally modified polyamines offer a less-explored avenue for discovering bioactive compounds.
Yuta, Makihara   +4 more
core   +1 more source

Polyamine-Based Pt(IV) Prodrugs as Substrates for Polyamine Transporters Preferentially Accumulate in Cancer Metastases as DNA and Polyamine Metabolism Dual-Targeted Antimetastatic Agents [PDF]

open access: yes, 2019
Diverse platinum drug candidates have been designed to improve inhibitory potency and overcome resistance for orthotopic tumors. However, the antimetastatic properties have rarely been reported.
Sitong Liu (3750979)   +29 more
core   +3 more sources

Upregulation of Polyamine Transport in Human Colorectal Cancer Cells

open access: yesBiomolecules, 2020
Polyamines are essential growth factors that have a positive role in cancer cell growth. Their metabolic pathway and the diverse enzymes involved have been studied in depth in multiple organisms and cells.
Misael Corral, Heather M. Wallace
doaj   +1 more source

Increased polyamine intake inhibits age-associated alteration in global DNA methylation and 1,2-dimethylhydrazine-induced tumorigenesis. [PDF]

open access: yesPLoS ONE, 2013
Polyamines (spermine and spermidine) play many important roles in cellular function and are supplied from the intestinal lumen. We have shown that continuous high polyamine intake inhibits age-associated pathologies in mice.
Kuniyasu Soda   +4 more
doaj   +1 more source

The Impact of Polyamine Precursors, Polyamines, and Steroid Hormones on Temporal Messenger RNA Abundance in Bovine Satellite Cells Induced to Differentiate

open access: yesAnimals, 2021
Emerging research suggests that hormones found in anabolic implants interact with polyamine biosynthesis. The objective of this study was to determine the effects of steroidal hormones, polyamines and polyamine precursors on bovine satellite cell (BSC ...
Caleb C. Reichhardt   +5 more
doaj   +1 more source

Polyamines and apoptosis [PDF]

open access: yesJournal of Cellular and Molecular Medicine, 2005
The natural polyamines putrescine, spermidine and spermine are in multiple ways involved in cell growth and the maintenance of cell viability. In the course of the last 15 years more and more evidence hinted also at roles in gene regulation. It is therefore not surprising that the polyamines are involved in events inherent to genetically programmed ...
Nikolaus, Seiler, Francis, Raul
openaire   +2 more sources

Home - About - Disclaimer - Privacy