Results 51 to 60 of about 23,156 (257)

Expression of full-length human alkylglycerol monooxygenase and fragments in Escherichia coli

Pteridines, 2013
Alkylglycerol monooxygenase (AGMO; EC 1.14.16.5) is the only enzyme known to cleave the O-alkyl ether bond of alkylglycerols in humans. It is an integral membrane protein with nine predicted transmembrane domains.
Mayer Matthias, Keller Markus A., Watschinger Katrin, Werner-Felmayer Gabriele, Werner Ernst R., Golderer Georg   +5 more
doaj   +1 more source

Blocked dihydropteridines as nitric oxide synthase activators [PDF]

, 2010
It has been shown that 6-acetyl-7,7-dimethyl-5,6,7,8-tetrahydropteridin-4(3H)-one can act as a competent cofactor for the production of nitric oxide by neuronal nitric oxide synthase (nNOS).
Daff, Simon, Gazur, Ben, Gibson, C.L., McInnes, Craig R., Morthala, Raghavendar R., Suckling, C.J.   +5 more
core  

p38(MAPK)/p53 signalling axis mediates neuronal apoptosis in response to tetrahydrobiopterin-induced oxidative stress and glucose uptake inhibition: implication for neurodegeneration. [PDF]

, 2010
BH4 (tetrahydrobiopterin) induces neuronal demise via production of ROS (reactive oxygen species). In the present study we investigated the mechanisms of its toxicity and the redox signalling events responsible for the apoptotic commitment in SH-SY5Y ...
Cardaci, S, Ciriolo, MR, Filomeni, G, Rotilio, G   +3 more
core   +4 more sources

Hippo Pathway Drives Durable Non‐Cell‐Autonomous Ferroptosis Resistance in Lung Cancer

Cancer Science, EarlyView.
YAP/TAZ, key effectors in lung cancer progression, paradoxically sensitize tumor cells to ferroptosis. This study reveals that YAP/TAZ‐low cells confer non‐cell‐autonomous, GCH1‐mediated durable ferroptosis resistance to neighboring YAP/TAZ‐high cells via a soluble factor, highlighting a Hippo pathway‐linked mechanism of tumor adaptation and survival ...
Mohamed Fathi Saleh, Akihiro Nita, Yudai Ohta, Aya Kobayashi, Hao Li, Yasuhisa Sakamoto, Toshiro Moroishi   +6 more
wiley   +1 more source

Insulin Stimulates Tetrahydrobiopterin Synthesis in Mouse Brain Microvascular Endothelial Cells

Pteridines, 1999
We examined the effects of insulin on tetrahydrobiopterin (BH4) synthesis in mouse brain microvascular endothelial cells (MBMECs). Treatment of MBMECs with insulin increased the intracellular BH4 content in a time- and concentration-dependent manner. The
Ishi Masakazu, Shimizu Shunichi, Nagai Tsutomu, Kiuchi Yuji, Yamamoto Toshinori   +4 more
doaj   +1 more source

Ligustilide Prevents Radiation Enteritis by Targeting Gch1/BH4/eNOS to Improve Intestinal Ischemia

Frontiers in Pharmacology, 2021
There is a high incidence of radiation enteritis (RE) after abdominal radiotherapy. The occurrence of RE seriously affects the treatment and quality of life of patients; however, its pathogenesis is complex and there are no effective drugs for its ...
Tao Yan, Shun Guo, Tian Zhang, Zhimin Zhang, An Liu, Song Zhang, Yuan Xu, Yuhong Qi, Weihe Zhao, Qinhui Wang, Lei Shi, Linna Liu   +11 more
doaj   +1 more source

Redox stress defines the small artery vasculopathy of hypertension: how do we bridge the bench-to-bedside gap? [PDF]

, 2017
Although convincing experimental evidence demonstrates the importance of vascular reactive oxygen and nitrogen species (RONS), oxidative stress, and perturbed redox signaling as causative processes in the vasculopathy of hypertension, this has not ...
Liang, Mingyu, Montezano, Augusto C., Rios, Francisco, Touyz, Rhian M., Widlansky, Michael E.   +4 more
core   +1 more source

Tetrahydrobiopterin biosynthesis, regeneration and functions [PDF]

Biochemical Journal, 2000
Tetrahydrobiopterin (BH4) cofactor is essential for various processes, and is present in probably every cell or tissue of higher organisms. BH4 is required for various enzyme activities, and for less defined functions at the cellular level.
B, Thöny, G, Auerbach, N, Blau
openaire   +2 more sources

RNA‐Binding Proteins and Ferroptosis in Cancer: Mechanism and Therapeutic Implications

MedComm – Oncology, Volume 5, Issue 1, March 2026.
Ferroptosis critically influences cancer cell fate and represents a promising therapeutic strategy. Emerging evidence identifies RNA‐binding proteins (RBPs) as key post‐transcriptional regulators of ferroptosis. The figure summarizes ferroptosis‐related RBPs across cancers: blue RBPs act as tumor suppressors by promoting ferroptosis, whereas red RBPs ...
Linlin Chang, Bin Lu, Haotian Shang, Wanjing Ding, Chunhua Wei, Xiaotian Qi, Pengxing He   +6 more
wiley   +1 more source

In Vitro and In Vivo Chaperone Effect of (R)-2-amino-6-(1R, 2S)-1,2-dihydroxypropyl)-5,6,7,8-tetrahydropterin-4(3H)-one on the C1473G Mutant Tryptophan Hydroxylase 2

Biomolecules, 2023
Tryptophan hydroxylase 2 (TPH2) is the key and rate-limiting enzyme of serotonin (5-HT) synthesis in the mammalian brain. The 1473G mutation in the Tph2 gene decreases TPH2 activity in the mouse brain by twofold.
Alla B. Arefieva, Polina D. Komleva, Vladimir S. Naumenko, Nikita V. Khotskin, Alexander V. Kulikov   +4 more
doaj   +1 more source