Polyamine acetylation modulates polyamine metabolic flux, a prelude to broader metabolic consequences

DL Kramer, P Diegelman, J Jell, S Vujcic… - Journal of Biological …, 2008 - ASBMB
Recent studies suggest that overexpression of the polyamine-acetylating enzyme
spermidine/spermine N 1-acetyltransferase (SSAT) significantly increases metabolic flux …

Role of polyamines in immune cell functions

RS Hesterberg, JL Cleveland, PK Epling-Burnette - Medical sciences, 2018 - mdpi.com
The immune system is remarkably responsive to a myriad of invading microorganisms and
provides continuous surveillance against tissue damage and developing tumor cells. To …

Regulation of cellular polyamine levels and cellular proliferation by antizyme and antizyme inhibitor

C Kahana - Essays in biochemistry, 2009 - portlandpress.com
Polyamines are small aliphatic polycations present in all living cells. Polyamines are
essential for cellular viability and are involved in regulating fundamental cellular processes …

Akt kinase activation blocks apoptosis in intestinal epithelial cells by inhibiting caspase-3 after polyamine depletion

HM Zhang, JN Rao, X Guo, L Liu, T Zou… - Journal of Biological …, 2004 - ASBMB
Apoptosis plays a critical role in the maintenance of gut mucosal homeostasis and is
regulated by numerous factors including polyamines. Although the exact roles of polyamines …

Polyamines: an overview

DML Morgan - Molecular biotechnology, 1999 - Springer
The polyamines spermine, spermidine, and putrescine are small organic molecules one or
more of which are present in all living organisms. Many natural products contain polyamine …

Key role for p27Kip1, retinoblastoma protein Rb, and MYCN in polyamine inhibitor-induced G1 cell cycle arrest in MYCN-amplified human neuroblastoma cells

CJ Wallick, I Gamper, M Thorne, DJ Feith, KY Takasaki… - Oncogene, 2005 - nature.com
Alpha-difluoromethylornithine (DFMO) inhibits the proto-oncogene ornithine decarboxylase
(ODC) and is known to induce cell cycle arrest. However, the effect of DFMO on human …

Roles of polyamines in translation

TE Dever, IP Ivanov - Journal of Biological Chemistry, 2018 - ASBMB
Polyamines are organic polycations that bind to a variety of cellular molecules, including
nucleic acids. Within cells, polyamines contribute to both the efficiency and fidelity of protein …

Polyamines regulate c-Myc translation through Chk2-dependent HuR phosphorylation

L Liu, JN Rao, T Zou, L Xiao, PY Wang… - Molecular biology of …, 2009 - Am Soc Cell Biol
All mammalian cells depend on polyamines for normal growth and proliferation, but the
exact roles of polyamines at the molecular level remain largely unknown. The RNA-binding …

Antizyme and antizyme inhibitor, a regulatory tango

C Kahana - Cellular and Molecular Life Sciences, 2009 - Springer
The polyamines are small basic molecules essential for cellular proliferation and viability. An
autoregulatory circuit that responds to the intracellular level of polyamines regulates their …

[HTML][HTML] A novel polyamine blockade therapy activates an anti-tumor immune response

ET Alexander, A Minton, MC Peters, O Phanstiel IV… - Oncotarget, 2017 - ncbi.nlm.nih.gov
Most tumors maintain elevated levels of polyamines to support their growth and survival.
This study explores the anti-tumor effect of polyamine starvation via both inhibiting …