This protocol describes the analysis of protein cysteine redox status. Redox status is crucial in regulating protein activity, stability, and redox signaling cascades. It is determined by conjugation with 1.24 kDa MM(PEG) molecule to each reduced cysteine followed by western blot analysis. This protocol is easy to follow, and most of the reagents and instruments required are of common use in any lab. This protocol can be successfully applied to other biological sources. For complete details on the use and execution of this protocol, please refer to Pant et al. (2020).
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http://dx.doi.org/10.1016/j.xpro.2021.100566 | DOI Listing |
Int J Mol Sci
January 2025
Department of Nutritional Sciences, College of Natural Sciences, The University of Texas at Austin, Austin, TX 78712, USA.
Glioblastoma (GBM), the most prevalent primary malignant brain tumor, remains challenging to treat due to extensive inter- and intra-tumor heterogeneity. This variability demands combination treatments to improve therapeutic outcomes. A significant obstacle in treating GBM is the expression of O-methylguanine-DNA methyltransferase, a DNA repair enzyme that reduces the efficacy of the standard alkylating agent, temozolomide, in about 50% of patients.
View Article and Find Full Text PDFInt J Mol Sci
January 2025
Division of Renal Medicine, Tungs' Taichung MetroHarbor Hospital, Taichung 433, Taiwan.
Oxidative stress, endoplasmic reticulum (ER) stress, and alterations in autophagy activity have been described as prominent factors mediating many pathological processes in chronic kidney disease (CKD). The accumulation of misfolded proteins in the ER may stimulate the unfolded protein response (UPR). The interplay between autophagy and UPR in hemodialysis (HD) patients remains unclear.
View Article and Find Full Text PDFAntioxidants (Basel)
December 2024
Pharmaceutical Sciences Department, Faculty of Pharmacy, Al-Quds University, Jerusalem P.O. Box 20002, Palestine.
Red blood cells (RBCs) are a vital component of the body's oxygen supply system. In addition to being pro-oxidants, they are also essential components of the body's antioxidant defense mechanism. RBCs are susceptible to both endogenous and exogenous sources of oxidants.
View Article and Find Full Text PDFAntioxidants (Basel)
December 2024
Department of Experimental Medicine, University of Salento, 73100 Lecce, Italy.
Cannabinoids include both endogenous endocannabinoids and exogenous phytocannabinoids, such as cannabidiol (CBD), and have potential as therapeutic agents in cancer treatment due to their selective anticancer activities. CBD exhibits both antioxidant and pro-oxidant effects depending on its concentration and cell types. These properties allow CBD to influence oxidative stress responses and potentially enhance the efficacy of antitumor therapies.
View Article and Find Full Text PDFRedox Biol
January 2025
Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute/National Institutes of Health, 37 Convent Drive, Bethesda, MD, 20892, USA. Electronic address:
Metabolic pathways fuel tumor progression and resistance to stress conditions including chemotherapeutic drugs, such as DNA damage response (DDR) inhibitors. Yet, significant gaps persist in how metabolic pathways confer resistance to DDR inhibition in cancer cells. Here, we employed a metabolism-focused CRISPR knockout screen and identified genetic vulnerabilities to DDR inhibitors.
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