Results 111 to 120 of about 1,489,782 (254)

The Pathological Roles of Cationic Amino Acid Transporters (CATs) in Cancer

Cancer Science, EarlyView.
CAT family transporters (SLC7A1–SLC7A4) coordinate arginine allocation within the tumor microenvironment, thereby regulating cancer metabolism, mTORC1 signaling, immune responses, and metastatic progression. Emerging evidence supports context‐dependent roles for SLC7A1–SLC7A3, whereas the physiological and pathological functions of SLC7A4 remain poorly
Thant Thant Myo Oo, Yasuhiro Saito
wiley   +1 more source

Polyamines: the pivotal amines in influencing the tumor microenvironment

Discover Oncology
Cellular proliferation, function and survival is reliant upon maintaining appropriate intracellular polyamine levels. Due to increased metabolic needs, cancer cells elevate their polyamine pools through coordinated metabolism and uptake.
Cassandra E. Holbert, Robert A. Casero, Tracy Murray Stewart   +2 more
doaj   +1 more source

Inhibition of Ornithine Decarboxylase 1 Mitigates Denervation‐Induced Muscle Atrophy by Suppressing Proteolysis and Preserving Muscle Stem Cell Homeostasis

Cell Proliferation, EarlyView.
Polyamine metabolism is innervation responsive and involved in denervation‐induced muscle atrophy. Inhibition of polyamine metabolism attenuates muscle atrophy by restraining proteolysis and preserving MuSCs homeostasis. Denervation‐induced activation of FAP‐derived FGF7 drives premature MuSCs activation, while DFMO suppresses this paracrine cue to ...
Mingming Zhang, Feifan Chang, Siliang Ge, Fuming Cao, Pincong Fu, Haobo Zhang, Ming Chen, Yi Li, Peifu Tang, Pengbin Yin   +9 more
wiley   +1 more source

S‐Adenosylmethionine (SAM) hydrolases counter increased SAM epimerisation in thermophilic archaea

The FEBS Journal, EarlyView.
S‐Adenosyl‐l‐methionine (SAM) is a vital enzyme cofactor. Epimerisation at the sulfonium centre of biologically active (SS,SCα)‐SAM is driven by heat, yielding biologically inactive (RS,SCα)‐SAM. Here, two novel archaeal SAM hydrolases from the thermophilic Sulfolobus acidocaldarius and the halophilic Haloferax volcanii are shown to cleave (RS,SCα)‐SAM.
Agnes Bartels, Michael K. F. Mohr, Phillip Nußbaum, Marie Joest, Bianca Wassmer, Laurent Rasquin, Sonja‐Verena Albers, Jennifer N. Andexer   +7 more
wiley   +1 more source

Methionine Regulates Antitumour Function of CD8+ T Cells Through Polyamine Synthesis

Immunology, EarlyView.
Methionine restriction in vitro enhances CD8+ T cell effector function by suppressing polyamine synthesis and progressively induces the co‐expression of PD‐1 and TIM‐3. Consistently, sustained dietary methionine restriction diminishes the efficacy of adoptive T cell therapy (ACT) and promotes the expression of terminal exhaustion‐associated markers ...
Tian Zhao, Gillian A. Carleton, Sam Preshaw, Sarah MacPherson, Madison Shiyuk, Joseph Monaghan, Jun Han, Oro Uchenunu, Robert Rottapel, Ralph J. DeBerardinis, Kelly M. Stewart, Bo‐Hyun Kim, Juan Ausió, David R. Goodlett, Helena Pětrošová, Kyle D. Duncan, Julian J. Lum   +16 more
wiley   +1 more source

Genomic variation drives plant flavor diversification

Journal of Integrative Plant Biology, EarlyView.
This review explains how genomic variation shapes plant flavor by altering the biosynthetic and regulatory pathways of key attributes like sweetness, acidity, bitterness, piquancy, astringency, and aroma. It also discusses how multi‐omics, AI‐assisted breeding, and gene editing can translate this knowledge into plants with improved flavor, nutrition ...
Huimin Hu, Yanwei Hao, Yiwei Zhou, Xia Zhang, Rui Xia, Pan Liao   +5 more
wiley   +1 more source

Oil for the cancer engine: The cross-talk between oncogenic signaling and polyamine metabolism

Science Advances, 2018
Polyamine metabolism exhibits tight cross-talk with oncogenic signaling, thus playing a central role in cancer dynamics. The study of metabolism has provided remarkable information about the biological basis and therapeutic weaknesses of cancer cells ...
Amaia Arruabarrena-Aristorena, Amaia Zabala-Letona, A. Carracedo   +2 more
semanticscholar   +1 more source

Physicochemical Quality and Chemical Safety of Commercial Wet Cat Food: Composition, Oxidation, Biogenic Amines, and Trace Elements

Journal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT This study investigated the physicochemical characteristics and chemical safety of commercial wet cat foods marketed in Brazil. Twenty products labeled as beef, chicken and fish flavors were analyzed for proximate composition, pH, lipid and protein oxidation, biogenic amines, and essential and potentially toxic trace elements.
Marina Teixeira de Vries Mársico, Eliane Teixeira Mársico, Celso Fasura Balthazar, João Paulo de Sá Felizardo, Roberto Meigikos dos Anjos, Erick Almeida Esmerino, Sérgio Borges Mano   +6 more
wiley   +1 more source

Guanidinoacetic Acid Improves Growth Performance and Gut Health of Broilers Fed Metabolizable Energy‐Reduced Diets

Journal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT This study was conducted to evaluate the effects of guanidinoacetic acid (GAA) supplementation to diets with different energy levels on growth performance, carcass traits, and gut health status in broiler chickens. A total of 9500 1‐day‐old Ross 308 broilers (equal numbers of males and females) were allocated to 1 of 5 dietary treatments (10 ...
Necmettin Ceylan, Ali Anıl Çenesiz, İsmail Yavaş, Sait Koca, Vivienne Inhuber   +4 more
wiley   +1 more source

Dysregulation of SIRT1, polyamines and miRNA editing in cancer and aging

Amino Acids
Interest in RNA editing has emerged in molecular medicine due to its widespread dysregulation and therapeutic potential. Its regulatory mechanisms in governing non-coding RNAs, especially microRNAs (miRNAs) remain largely unresolved. Emerging evidence in
Miora Bruna Marielle Ramamonjiharisoa, Sen Liu   +1 more
doaj   +1 more source