Results 51 to 60 of about 348,538 (259)

Reduction in sucrose contents by downregulation of fructose-1,6-bisphosphatase 2 causes tiller outgrowth cessation in rice mutants lacking glutamine synthetase1;2

Rice, 2018
Background Our previous transcriptomic analysis revealed that downregulation of nitrogen and carbon metabolism in the basal portions of the shoots inhibited cytosolic glutamine synthetase1;2 (GS1;2), which severely reduced rice tiller number.
Miwa Ohashi, Keiki Ishiyama, Miyako Kusano, Atsushi Fukushima, Soichi Kojima, Toshihiko Hayakawa, Tomoyuki Yamaya   +6 more
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

FEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa, Akira Hattori, Masafumi Tsujimoto, Toshihide Kobayashi   +3 more
wiley   +1 more source

Astrocytes from P301S Tau mice exhibit non-canonical protein secretion and reduced morphological complexity

Neural Regeneration Research
Astrocytes have important neurosupportive functions in the brain that are altered in neurodegenerative diseases by unresolved mechanisms. We showed previously that astrocytes cultured from mice transgenic for human P301S-tau (P301S-mice) recapitulate the
Aishwarya G. Nadadhur, Matthew Mason, Johanna S. Rees, Marta Sidoryk-Wegrzynowicz, Aviva M. Tolkovsky, Maria Grazia Spillantini   +5 more
doaj   +1 more source

Optimal housing temperatures for mice to mimic the thermal environment of humans: An experimental study

Molecular Metabolism, 2018
Objectives: The laboratory mouse is presently the most common model for examining mechanisms of human physiology and disease. Housing temperatures can have a large impact on the outcome of such experiments and on their translatability to the human ...
Alexander W. Fischer, Barbara Cannon, Jan Nedergaard   +2 more
doaj   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Metabolic stress in patients with acute severe ulcerative colitis - a single-center cohort study

Frontiers in Endocrinology
Background and aimsAcute severe ulcerative colitis (ASUC) is characterized by systemic inflammation, which may initiate an acute-phase response leading to hypercatabolism.
Mathias Redsted, Mathias Redsted, Magnus Grønhøj, Magnus Grønhøj, Louise Dalsgaard Brøchner, Louise Dalsgaard Brøchner, Janne Fassov, Mads Vandsted Svart, Mads Vandsted Svart, Jens Rikardt Andersen, Christian Lodberg Hvas   +10 more
doaj   +1 more source

Distinct choline metabolic profiles are associated with differences in gene expression for basal-like and luminal-like breast cancer xenograft models

BMC Cancer, 2010
Background Increased concentrations of choline-containing compounds are frequently observed in breast carcinomas, and may serve as biomarkers for both diagnostic and treatment monitoring purposes.
Moestue Siver A, Borgan Eldrid, Huuse Else M, Lindholm Evita M, Sitter Beathe, Børresen-Dale Anne-Lise, Engebraaten Olav, Mælandsmo Gunhild M, Gribbestad Ingrid S   +8 more
doaj   +1 more source

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

FEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source