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DNA Crosslinking via Platinum Adducts

Molecular classification: DNA, Platinum-based compounds, DNA Adduct

Overview

DNA crosslinking via platinum adducts refers to the process by which platinum-based compounds, such as cisplatin and its analogs, form covalent bonds with DNA. These interactions result in various types of DNA lesions, including intrastrand and interstrand crosslinks as well as DNA-protein crosslinks. The formation of these adducts is central to the mechanism of action for several widely used anticancer drugs.

Mechanism of action

Platinum drugs form covalent adducts with DNA, causing DNA crosslinking, which blocks transcription and replication, leading to cell cycle arrest and apoptosis.

Biological functions

Transcription blockadeReplication blockadeDNA damage responseApoptosisCell cycle arrest

Disease associations

Cancer

Safety considerations

Resistance mechanisms (enhanced repair capacity, reduced drug accumulation/uptake)

Interacting drugs

Cisplatin

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