نتایج جستجو برای: buthionine sulfoximine

تعداد نتایج: 1267  

Journal: :Bioscience, biotechnology, and biochemistry 2002
Motoko Awazuhara Hoyeun Kim Hiroaki Hayashi Mitsuo Chino Sang-Gu Kim Toru Fujiwara

The application of glutathione to immature soybean cotyledons reduced the accumulation of the beta subunit of beta-conglycinin, and increased the accumulation of most glycinins. Both reduced and oxidized forms of glutathione had these effects. The application of an inhibitor of glutathione synthesis, buthionine sulfoximine, increased accumulation of beta subunit. These results suggest that glut...

2014
Dinggeng He Xiaoxiao He Kemin Wang Xue Yang Xiaoxiao Yang Zhen Zou Xuecai Li

Potassium permanganate (KMnO4) and oleic acid (OA) were purchased from Alfa Aesar. Glutathione (GSH), 3-(4,5-dimethylthialzol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), alpha lipoic acid (ALA), buthionine sulfoximine (BS) and N-ethylmaleimide (NEM) were purchased from Sigma-Aldrich. Doxorubicin hydrochloride (DOX) was purchased from Dingguo reagent company (Beijing, China). All buffers were p...

Journal: :Biochemical and Biophysical Research Communications 2021

Ferroptosis is a form of cell death caused by iron-dependent lipid peroxidation. Cancer cells increase cystine uptake for the synthesis glutathione (GSH), which used peroxidase 4 to reduce peroxides. Here, we report that deprivation in glioblastoma cells, but not inhibition GSH l-buthionine sulfoximine (BSO), induces ferroptosis. We found decreased protein levels ferritin heavy chain FTH1, wher...

2015
Isolda Romero-Canelón Magdalena Mos Peter J. Sadler

Combination with redox modulators can potentiate the anticancer activity and maximize the selectivity of organometallic complexes with redox-based mechanisms of action. We show that nontoxic doses of l-buthionine sulfoximine increase the selectivity of organo-Os complex FY26 for human ovarian cancer cells versus normal lung fibroblasts to 63-fold. This increase is not due to changes in the mech...

2015
Benjamin Delatte Jana Jeschke Matthieu Defrance Martin Bachman Catherine Creppe Emilie Calonne Martin Bizet Rachel Deplus Laura Marroquí Myriam Libin Mirunalini Ravichandran Françoise Mascart Decio L. Eizirik Adele Murrell Tomasz P. Jurkowski François Fuks

The TET enzymes convert methylcytosine to the newly discovered base hydroxymethylcytosine. While recent reports suggest that TETs may play a role in response to oxidative stress, this role remains uncertain, and results lack in vivo models. Here we show a global decrease of hydroxymethylcytosine in cells treated with buthionine sulfoximine, and in mice depleted for the major antioxidant enzymes...

Journal: :Antimicrobial agents and chemotherapy 2008
Diego A Goyeneche-Patino Liliana Valderrama John Walker Nancy G Saravia

The participation of trypanothione in clinical and experimental antimony (Sb) resistance in Leishmania panamensis was examined by using specific inhibitors. Buthionine sulfoximine (BSO) significantly reversed the resistance to trivalent Sb (Sb(III)) of promastigotes of experimentally derived Sb-resistant lines, supporting the participation of a trypanothione-mediated mechanism of resistance. In...

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