Results 81 to 90 of about 1,482,447 (317)

MTR4 methylation-dependent degradation activates mTORC1 signaling to promote glioma cell survival under methionine starvation

Amino Acids
Methionine is an essential amino acid for the human body. Understanding how tumor cells adjust their signaling networks to evade apoptosis and sustain proliferation in a methionine starvation tumor microenvironment is a significant scientific question ...
Lude Wang, Qiuwen Lou, Jie Chang, Zhijian Xu, Fan Yang, Qi Tu, Jianmin Zhang, Wenxia Xu, Minfeng Tong   +8 more
doaj   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

Molecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat, Aslihan Kucuk, Omer Erdogan, Samed Ozer, Bensu Kozan, Tugba Cuceli, Erkan Gumus, Evrim Cevik, Ozge Cevik   +8 more
wiley   +1 more source

4 Aromatic Amino Acids in the Brain

, 2007
This chapter describes the aromatic l-amino acids tryptophan and tyrosine and the effects on tyrosine metabolism of phenylalanine. Tryptophan and phenylalanine are essential amino acids and must ultimately be derived from dietary proteins; tyrosine is ...
M. Cansev, Cansev, Mehmet, R. J. Wurtman, Wurtman, Richard J.   +3 more
core   +1 more source

Diel rhythmicity in amino acid uptake by Prochlorococcus [PDF]

, 2008
The marine cyanobacterium Prochlorococcus, the most abundant phototrophic organism on Earth, numerically dominates the phytoplankton in nitrogen (N)-depleted oceanic gyres.
Terry, Matthew J, Garczarek, Laurence, Tarran, Glen A, Mary, Isabelle, Burkill, Peter H, Scanlan, David J, Kolowrat, Christian, Zubkov, MV, Zubkov, Mikhail V, Terry, MJ, Tarran, Glen A., Scanlan, David J., Scanlan, DJ, Burkill, Peter H., Tarran, GA, Terry, Matthew J., Burkill, PH, Zubkov, Mikhail V., Kolowrat, CK, Mary, I, Garczarek, LG   +20 more
core   +1 more source

Creatine homeostasis and the kidney: comparison between kidney transplant recipients and healthy controls

Amino Acids
Creatine is a natural nitrogenous organic acid that is integral to energy metabolism and crucial for proper cell functioning. The kidneys are involved in the first step of creatine production. With kidney transplantation being the gold-standard treatment
Adrian Post, Dion Groothof, Daan Kremer, Tim J. Knobbe, Willem Abma, Christa A. Koops, Dimitrios Tsikas, Theo Wallimann, Robin P.F. Dullaart, Casper F.M. Franssen, Ido P. Kema, M. Rebecca Heiner-Fokkema, Stephan J.L. Bakker   +12 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

The AAP gene family for amino acid permeases contributes to development of the cyst nematode Heterodera schachtii in roots of Arabidopsis [PDF]

, 2013
The beet cyst nematode Heterodera schachtii is able to infect Arabidopsis plants and induce feeding sites in the root. These syncytia are the only source of nutrients for the nematodes throughout their life and are a nutrient sink for the host plant.
Elashry, Abdelnaser, Siddique, Shahid, Koch, Wolfgang, Kreil, David, Okumoto, Sakiko, Bohlmann, Holger, Kreil, David P.   +6 more
core   +1 more source

Exploring the interplay between kidney function and urinary metabolites in young adults: the African-PREDICT study

Amino Acids
The exposure to modifiable risk factors at young ages have been linked to premature fatal and non-fatal cardiovascular and kidney outcomes. The use of urinary metabolomics has shown strong predictability of kidney function and cardiovascular disease (CVD)
Wessel L. du Toit, Ruan Kruger, Lebo F. Gafane-Matemane, Aletta E. Schutte, Roan Louw, Catharina M. C. Mels   +5 more
doaj   +1 more source

Circular RNA expression landscapes in myelodysplastic neoplasms: Associations with mutational signatures and disease progression

Molecular Oncology, EarlyView.
In this explorative study, the abundance of circular RNA molecules in bone marrow stem cells was found to be elevated in patients with high‐risk myelodysplastic neoplasms, and to be associated with an increased risk of progression to acute myeloid leukemia.
Eileen Wedge, Morten Tulstrup, Gabriele Todisco, Pedro Moura, Christophe Côme, Jakob Werner Hansen, Jakob Schmidt Jespersen, Balthasar Schlotmann, Maria Creignou, Mette Dahl, Claudia Schöllkopf, Klas Raaschou‐Jensen, Krister Wennerberg, Bo Porse, Joachim Weischenfeldt, Eva Hellström‐Lindberg, Lasse Sommer Kristensen, Kirsten Grønbæk   +17 more
wiley   +1 more source

In vitro and in vivo studies on exogenous polyamines and α-difluoromethylornithine to enhance bone formation and suppress osteoclast differentiation

Amino Acids
Exogenous polyamines, including putrescine (PUT), spermidine (SPD), and spermine (SPM), and the irreversible inhibitor of the rate-limiting enzyme ornithine decarboxylase (ODC) of polyamine biosynthesis, α-difluoromethylornithine (DFMO), are implicated ...
Chien-Ching Lee, Chia-Chun Chuang, Chung-Hwan Chen, Yuan-Pin Huang, Chiao-Yi Chang, Pei-Yi Tung, Mon-Juan Lee   +6 more
doaj   +1 more source