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Updated: Dec 30, 2025
07:20
Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents
Published on: May 28, 2014
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Enolate-forming compounds provide protection from platinum neurotoxicity
Brian C Geohagen1, Daniel A Weiser2, David M Loeb3
1Department of Anesthesiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, 10467, USA.
Chemico-Biological Interactions
|January 25, 2020
Summary
Platinum-based chemotherapy drugs like cisplatin cause nerve damage. Researchers discovered novel compounds that protect against this neurotoxicity by neutralizing platinum ions, potentially separating side effects from anti-cancer effects.
Area of Science:
- Oncology
- Neuroscience
- Medicinal Chemistry
Background:
- Platinum (Pt)-based chemotherapy drugs, including cisplatin, carboplatin, and oxaliplatin, are vital for treating solid tumors.
- Chemotherapy-induced peripheral neuropathies (CIPN), particularly sensorineural hearing loss (ototoxicity), are significant dose-limiting toxicities associated with these drugs.
- Current neuroprotective strategies for CIPN have yielded limited clinical success.
Purpose of the Study:
- To identify novel compounds capable of preventing platinum-induced neurotoxicity.
- To investigate the potential for separating the neurotoxic mechanisms from the antitumor activity of platinum-based drugs.
Main Methods:
- Discovery of carbon-based enol nucleophiles, such as Gavinol (N-(4-acetyl-3,5-dihydroxyphenyl)-2-oxocytclopentane-1-carboxamide).
- Evaluation of the neuroprotective potential of these compounds against platinum neurotoxicity.
- Utilized Hard and Soft, Acids and Bases (HSAB) theory for mechanistic insights.
Main Results:
- Identified enol nucleophiles that effectively scavenge platinum ions, thereby preventing neurotoxicity.
- Demonstrated that the neuroprotective mechanism is distinct from the antitumor mechanism of platinum drugs.
- Cell-derived data were supported by HSAB parameter calculations.
Conclusions:
- Carbon-based enol nucleophiles can serve as effective neuroprotective agents against platinum-induced toxicities.
- The mechanisms underlying platinum neurotoxicity and antitumor efficacy are separable.
- This discovery opens avenues for developing platinum-based therapies with reduced side effects.
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