Results 21 to 30 of about 31,816 (250)

Polyamines in Soybeans [PDF]

Plant 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]

Frontiers 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

Polyamines control of cation transport across plant membranes: implications for ion homeostasis and abiotic stress signaling

Frontiers in Plant Science, 2014
Polyamines are unique polycationic metabolites, controlling a variety of vital functions in plants, including growth and stress responses. Over the last two decades a bulk of data was accumulated providing explicit evidence that polyamines play an ...
Igor ePottosin, Igor ePottosin, Sergey eShabala   +2 more
doaj   +1 more source

Urinary Excretion of Free and Acetylated Polyamines in Hepatocellular Carcinoma

The International Journal of Biological Markers, 1998
Polyamines (putrescine, spermidine and spermine) are essential for the proliferation of normal and neoplastic cells, and have been repeatedly recommended as tumor markers, with contrasting and elusive results.
S. Antoniello, M. Auletta, P. Magri, F. Pardo   +3 more
doaj   +1 more source

Promotion of homology-directed DNA repair by polyamines

Nature Communications, 2019
The maintenance polyamines homeostasis is important for cell growth, and several cancers harbor elevated levels of polyamines that may contribute to sustained proliferative potential. Here the authors demonstrate that polyamines participate in DNA double-
Chih-Ying Lee, Guan-Chin Su, Wen-Yen Huang, Min-Yu Ko, Hsin-Yi Yeh, Geen-Dong Chang, Sung-Jan Lin, Peter Chi   +7 more
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Novel Insight into the Multiple Biological Characteristics of Polyamines in the Gut: From Structure to Function

Frontiers in Bioscience-Landmark
This review explores the structure of polyamines, including putrescine, spermidine, and spermine, and their crucial roles in immune cell functions. Polyamines are active compounds derived from ornithine that regulate signaling pathways by interacting ...
Xinyi Yu, Shuzi Xin, Xiaohui Liu, Luming Pan, Weikai Shi, Yize Li, Hongli Wang, Xin Lu, Han Gao, Jingdong Xu   +9 more
doaj   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source

Carrier‐Free Berberine/Nitidine Chloride Self‐Assembled Nanoparticles Induce Ferroptosis to Overcome Bortezomib Resistance in Multiple Myeloma

Advanced Science, EarlyView.
A schematic illustrating the fabrication process and ferroptosis‐mediated therapeutic mechanism of carrier‐free self‐assembled BBR/NC‐SAPs for overcoming bortezomib resistance in multiple myeloma. ABSTRACT Therapeutic relapse driven by bortezomib resistance represents a formidable clinical barrier in the management of multiple myeloma (MM).
Yiwen Lv, Shuang Liu, Hong Wu, Guiluan Li, Ying Rong, Guangchao Li, Yangmin Zhu, Qi Zhong, Ruiming Ou, Huijuan Shen, Zhi Liu, Jing Huang, Zhenwei Wang, Pei Lin, Qing Zhang, Guopan Yu, Zhao Yin   +16 more
wiley   +1 more source

Polyamines mediate cellular energetics and lipid metabolism through mitochondrial respiration to facilitate virus replication.

PLoS Pathogens
Polyamines are critical cellular components that regulate a variety of processes, including translation, cell cycling, and nucleic acid metabolism. The polyamines, putrescine, spermidine, and spermine, are found abundantly within cells and are positively-
Yazmin E Cruz-Pulido, Natalie J LoMascolo, Delaina May, Jomana Hatahet, Caroline E Thomas, Andrea K W Chu, Samantha P Stacey, Maria Del Mar Villanueva Guzman, Gregory Aubert, Bryan C Mounce   +9 more
doaj   +1 more source