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Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging
Published on: July 21, 2011
Next-generation therapeutics: unlocking the power of lanthanide compounds with phosphorus-containing ligands
Kacper Kardas1, Debbie C Crans2,3, Urszula K Komarnicka1
1Faculty of Chemistry University of Wrocław, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland. urszula.komarnicka2@uwr.edu.pl.
Abstract:
The continuing challenge of drug resistance and the limited efficacy of anticancer conventional therapies underlines the urgent need to develop new medicinal strategies. Metal-based compounds have appeared as promising candidates in medicine, especially in oncology, including lanthanides offering exceptional physicochemical properties such as luminescence, paramagnetism, and radiotherapeutic potential. Despite their growing obvious role in diagnostics and imaging, the biological applications of lanthanide compounds remain underexplored, although a few are used in the clinic including radiopharmaceutical, radioligand therapy, radioimmunotherapy and radioembolization device exist for specific purposes. There is a particularly low number of lanthanide complexes containing phosphorus-based ligands. That is why, this work highlights the potential of lanthanide inorganic compounds with phosphorus-based ligands, especially phosphine and phosphine oxide ligands coordinated to the metal ion as multifunctional anticancer agents. These compounds exhibit strong versatility, and ability to stabilize lower oxidation states of metal ions, enabling their use in numerous therapeutic modalities, such as chemotherapy, radiotherapy, photodynamic therapy (PDT), and theranostics. The integration of lanthanide ions with organophosphine ligands offers a promising platform for targeted drug delivery, multimodal treatment, and personalized medicine. This manuscript provides an overview of current clinical and preclinical reports and as such, highlighting the untouched potential of the combined lanthanide-phosphine class of inorganic compounds that could be developed as a next-generation therapy, especially towards cancer diseases.
Insights
Lanthanide compounds with phosphorus ligands show promise as multifunctional anticancer agents. This research explores their potential in diverse therapies, including chemotherapy, radiotherapy, and theranostics, for next-generation cancer treatment.
Area of Science:
- Inorganic Chemistry
- Medicinal Chemistry
- Oncology
Background:
- Drug resistance and limited efficacy of conventional anticancer therapies necessitate novel strategies.
- Lanthanide compounds offer unique properties (luminescence, paramagnetism, radiotherapeutic potential) for medical applications, particularly in oncology.
- While diagnostics and imaging applications of lanthanides are established, their biological and therapeutic roles, especially in cancer, remain underexplored.
Purpose of the Study:
- To highlight the potential of lanthanide inorganic compounds featuring phosphorus-based ligands (phosphine, phosphine oxide) as multifunctional anticancer agents.
- To explore the versatility of these compounds in various therapeutic modalities.
- To review current clinical and preclinical data on lanthanide-phosphine complexes for next-generation cancer therapy.
Main Methods:
- Literature review of clinical and preclinical reports on lanthanide compounds with phosphorus-based ligands.
- Analysis of the physicochemical properties and coordination chemistry of lanthanide-phosphine complexes.
- Evaluation of their potential in diverse therapeutic applications including chemotherapy, radiotherapy, photodynamic therapy (PDT), and theranostics.
Main Results:
- Lanthanide complexes with phosphine and phosphine oxide ligands demonstrate significant versatility as anticancer agents.
- These compounds can stabilize lower metal oxidation states, enabling multiple therapeutic applications.
- Integration with organophosphine ligands facilitates targeted drug delivery, multimodal treatment, and personalized medicine.
Conclusions:
- Lanthanide-phosphine inorganic compounds represent a largely untapped resource for developing novel anticancer therapies.
- Their unique properties and versatility position them as promising candidates for next-generation cancer treatment strategies.
- Further research into these compounds could lead to advanced theranostic and personalized medicine approaches for oncology.
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