Results 1 to 10 of about 101,249 (389)

Cystine transporter SLC7A11/xCT in cancer: ferroptosis, nutrient dependency, and cancer therapy

open access: yesProtein & Cell, 2020
The cystine/glutamate antiporter SLC7A11 (also commonly known as xCT) functions to import cystine for glutathione biosynthesis and antioxidant defense and is overexpressed in multiple human cancers.
Pranavi Koppula, Li Zhuang, Boyi Gan
doaj   +2 more sources

Molecular jamming - the cystine slipknot mechanical clamp in all-atom simulations [PDF]

open access: yes, 2011
A recent survey of 17 134 proteins has identified a new class of proteins which are expected to yield stretching induced force-peaks in the range of 1 nN. Such high force peaks should be due to forcing of a slip-loop through a cystine ring, i.e. by generating a cystine slipknot. The survey has been performed in a simple coarse grained model.
Carrion-Vazquez M.   +4 more
arxiv   +3 more sources

Lysosomal cystine export regulates mTORC1 signaling to guide kidney epithelial cell fate specialization [PDF]

open access: yesbioRxiv, 2023
Differentiation is critical for cell fate decisions, but the signals involved remain unclear. The kidney proximal tubule (PT) cells reabsorb disulphide-rich proteins through endocytosis, generating cystine via lysosomal proteolysis.
Berquez, Marine   +11 more
core   +2 more sources

Pharmacological inhibition of cystine–glutamate exchange induces endoplasmic reticulum stress and ferroptosis

open access: yeseLife, 2014
Exchange of extracellular cystine for intracellular glutamate by the antiporter system xc− is implicated in numerous pathologies. Pharmacological agents that inhibit system xc− activity with high potency have long been sought, but have remained elusive ...
Scott J Dixon   +10 more
doaj   +2 more sources

Environmental cystine drives glutamine anaplerosis and sensitizes cancer cells to glutaminase inhibition

open access: yeseLife, 2017
Many mammalian cancer cell lines depend on glutamine as a major tri-carboxylic acid (TCA) cycle anaplerotic substrate to support proliferation. However, some cell lines that depend on glutamine anaplerosis in culture rely less on glutamine catabolism to ...
Alexander Muir   +5 more
doaj   +2 more sources

Inducing disulfidptosis in tumors:potential pathways and significance [PDF]

open access: yesMedComm
Regulated cell death (RCD) is crucial for the elimination of abnormal cells. In recent years, strategies aimed at inducing RCD, particularly apoptosis, have become increasingly important in cancer therapy.
Tao Mi   +4 more
doaj   +2 more sources

Dihydrolipoamide dehydrogenase regulates cystine deprivation-induced ferroptosis in head and neck cancer

open access: yesRedox Biology, 2020
Ferroptosis is a new form of regulated cell death driven by iron-dependent lipid peroxidation. Glutaminolysis and tricarboxylic acid cycle are involved in ferroptosis, but the underlying metabolic process remains unclear.
Daiha Shin   +4 more
doaj   +2 more sources

Tiny cystine stones in the gallbladder of a patient with cholecystolithiasis complicating acute cholecystitis: a case report [PDF]

open access: yesEuropean Journal of Medical Research, 2012
Cystine stones, the main component of which is cystine, are very common urinary calculi, but are rare in the gall bladder. In animals, there has been only one report of cystine gallstones in tree shrews, and to our knowledge, this is the first report of ...
Qiao Tie   +6 more
doaj   +4 more sources

An Open-Label, Phase III Study to Assess the Efficacy and Safety of Cysteamine Ophthalmic Solution 0.55% in Japanese Cystinosis Patients [PDF]

open access: yesClinical Ophthalmology
Nobuhiro Goi,1 Fumino Iwata,2 Yoko Sugihara,3 Shingo Higa,1 Taiichiro Chikama4 1Medical Affairs, Viatris Pharmaceuticals Japan G.K., Tokyo, Japan; 2Iwata Eye Clinic, 2-15-21 Nishinakanobu, Shinagawa-ku, Tokyo, 142-0054, Japan; 3Global Clinical Operations,
Goi N   +4 more
doaj   +2 more sources

Role of Dual Energy CT Scan in Evaluation of the Chemical Composition of Renal Stones [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2020
Introduction: For appropriate management of renal stone knowing its composition is important. Laboratory chemical analysis of the stones involves sophisticated techniques.
Sachin Khanduri   +7 more
doaj   +1 more source

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