Web1 day ago · Platinum agents, such as cisplatin (CDDP), carboplatin, and oxaliplatin are widely used in the treatment of solid tumors [28]. Goodspeed and colleagues [29] identified the MMR as comprising the top resistant genes to cisplatin-based therapy. Cytotoxicity induced by cisplatin is achieved in an MMR-dependent manner. Web2014; Wang and Lippard 2005). Aquated cisplatin has a high affinity with DNA and binds DNA through the interac-tion of platinum atom and N7 position of purine bases lead-ing to the formation of intrastrand crosslinks and interstrand crosslinks (Basu and Krishnamurthy 2010; Fujikawa et al. 2014; Wang and Lippard 2005). 1,2-Intrastrand crosslinks

Identification of genome-wide cisplatin cross-linking sites with …

Cisplatin interferes with DNA replication, which kills the fastest proliferating cells, which in theory are cancerous. Following administration, one chloride ion is slowly displaced by water to give the aquo complex cis-[PtCl(NH3)2(H2O)] , in a process termed aquation. Dissociation of the chloride is favored inside the cell because the intracellular chloride concentration is only 3–20% of the approxi… WebThrough the aquation process, cisplatin becomes highly reactive and readily binds to a variety of biomolecules inside the cell (1). In its reactive form, cisplatin covalently binds to DNA... how do you know if someone unfollowed you

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WebY-box binding protein Another transcription factor that binds cisplatin-modified DNA is YB-1, a protein that recognizes an inverted CCAAT sequence termed the Y-box. 79 This protein is important both for signaling of DNA damage and for cell proliferation.YB-1 binds selectively to 1,2-d(GpG), 1,2-d(ApG), and 1,3-d(GpTpG) cross-links of cisplatin, 80 and … WebJun 19, 1990 · Binding of the factor to cisplatin-modified DNA was sensitive to pretreatment with proteinase K, establishing that the factor is a protein. Gel mobility shifts were … WebCisplatin coordinates to DNA mainly through certain nitrogen atoms of the DNA base pairs; these nitrogen atoms (specifically, the N7 atoms of purines) are free to coordinate to cisplatin because they do not form hydrogen bonds with any other DNA bases, as shown … phone books uk online