Cisplatin is a platinum-based chemotherapy drug used to treat various cancers [1]. It functions by cross-linking DNA, which interferes with DNA replication and transcription, ultimately leading to cancer cell death [1][2].
What cancers does cisplatin treat?
Cisplatin is effective against a range of solid tumors. It is commonly used in the treatment of testicular cancer, ovarian cancer, bladder cancer, lung cancer, and head and neck cancers [1][3]. It may also be used for other types of cancer, often in combination with other chemotherapy agents [3].
How is cisplatin administered?
Cisplatin is typically administered intravenously (IV) by a healthcare professional [1]. The dosage and frequency of administration depend on the type and stage of cancer being treated, as well as the patient's overall health [4]. Treatment cycles often involve a period of administration followed by a rest period to allow the body to recover [4].
What are the side effects of cisplatin?
Like most chemotherapy drugs, cisplatin can cause significant side effects. Common adverse reactions include nausea and vomiting, which can often be managed with anti-emetic medications [5]. Other potential side effects include kidney damage (nephrotoxicity), nerve damage (neurotoxicity), hearing loss (ototoxicity), bone marrow suppression leading to reduced blood cell counts, and hair loss [1][5]. Medical professionals closely monitor patients for these side effects during treatment.
How does cisplatin work at a molecular level?
Cisplatin is a metal complex that enters cancer cells and undergoes aquation, becoming positively charged [2]. This activated form then binds covalently to the nitrogen atoms (N7) of purine bases within DNA strands [2]. The primary mechanism involves the formation of intra-strand and inter-strand DNA cross-links [2]. These adducts distort the DNA helix, interfering with essential cellular processes such as DNA replication and transcription. This disruption triggers DNA damage responses and ultimately leads to programmed cell death (apoptosis) in the cancer cells [2].
What is the patent status of cisplatin?
Cisplatin has been in use for many decades, and its original patents have long expired [6]. As a result, it is a widely available generic medication [6].
Are there alternatives to cisplatin?
For some cancers treated with cisplatin, alternative chemotherapy regimens exist that may use different drugs or combinations of drugs [3]. The choice of treatment depends on the specific cancer type, its stage, the patient's medical history, and potential contraindications to cisplatin [3][4]. Other platinum-based drugs, such as carboplatin, are also used and have a different side effect profile [5].