Why is platinum used in anticancer drugs?
The most significant mechanism by which classical platinum complexes are believed to induce apoptotic cell death is inhibition of transcription. When RNA polymerases transcribe DNA, they stall at the platinum cross-link and recruit the transcription-coupled repair machinery.
What is the primary target of platinum-based anticancer drugs?
The target of platinum drugs is nuclear DNA. As an electrophile, platinum most readily binds to the N7 atom of guanosine bases and to a lesser extent, the N7 atom of adenosine bases.
How do platinum chemotherapy drugs work?
Platinum-Based Drugs (Cisplatin, Carboplatin) These drugs form highly reactive platinum complexes that bind and crosslink DNA, a double-stranded molecule inside the nucleus of the cell that controls cellular activity. The chemical crosslinking within the DNA prevents cancer cells from growing and causes them to die.
What are the classification of anti cancer drugs?
The antineoplastic agents are not easily classified. Historically, they are categorized as (1) alkylating agents, (2) antimetabolites, (3) natural products, (4) hormones and antagonists, and (5) miscellaneous.
What is platinum used for?
Platinum is used in catalytic converters, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and jewelry.
How do platinum anticancer drugs bind to DNA?
Platinum-containing molecules are widely used as anticancer drugs. These molecules exert cytotoxic effects by binding to DNA through various mechanisms. In particular, relevant differences in DNA stability at the single-molecule level are demonstrated by analyzing nanomechanically induced DNA denaturation.
What are platinum compounds?
Platinum (Pt) compounds are named for their central Pt ion, surrounded by chloride (Cl−) atoms and ammonia groups. ▪ The platinum compounds cross-link DNA strands, thereby inhibiting DNA synthesis and function. If the DNA is damaged enough, the cell will undergo apoptosis (Figure 20-5).
Which chemo drugs contain platinum?
Platinum-based anticancer drugs, including cisplatin, carboplatin, oxaliplatin, nedaplatin, and lobaplatin, are heavily applied in chemotherapy regimens. However, the intrinsic or acquired resistance severely limit the clinical application of platinum-based treatment.
What are cancer drugs also known as?
Chemotherapy, also known as chemo or anticancer medication, is medication that is used to destroy, kill, shrink, or slow the growth of cancer cells. There are over 100 different chemo drugs.
Which antineoplastic agent contains platinum?
Platinum-based anticancer drugs, including cisplatin, carboplatin, oxaliplatin, nedaplatin, and lobaplatin, are heavily applied in chemotherapy regimens.
Is platinum used in medicine?
Platinum is used to make essential components for a range of medical devices, including pacemakers, implantable defibrillators, catheters, stents and neuromodulation devices. As well as biomedical device components, platinum also finds use in anticancer drugs such as cisplatin and carboplatin.
Is platinum good for health?
The health effects of platinum are strongly dependent upon the kind of bonds that are shaped and the exposure level and immunity of the person that is exposed. Finally, a danger of platinum is that it can cause potentiation of the toxicity of other dangerous chemicals in the human body, such as selenium.