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Anticancer Metal Complexes: Synthesis and Cytotoxicity Evaluation by the MTT Assay
Published on: November 10, 2013
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In vivo anticancer activity of rhomboidal Pt(II) metallacycles
Ivan V Grishagin1, J Bryant Pollock2, Swati Kushal1
1School of Pharmacy, University of Southern California, Los Angeles, CA 90089; and.
Summary
Novel platinum(II)-based supramolecular coordination complexes (SCCs) show promise as effective antitumor agents. These non-toxic complexes rapidly localize to tumors, suppressing growth with low toxicity to healthy tissues.
Area of Science:
- Chemistry, cancer biology, and pharmacology
- Supramolecular chemistry
- Nanomedicine
Background:
- Developing novel antitumor agents with high efficacy, low toxicity, and rapid tumor localization is crucial.
- Supramolecular coordination complexes (SCCs) offer tunable properties for targeted drug delivery and therapy.
Purpose of the Study:
- To investigate the uptake, intracellular localization, and antitumor activity of two rhomboidal platinum(II)-based SCCs.
- To evaluate the potential of these Pt(II)-based SCCs as therapeutic agents.
Main Methods:
- Laser-scanning confocal microscopy was used to determine cellular uptake and localization in A549 and HeLa cells.
- Antitumor efficacy was assessed in subcutaneous mouse tumor xenograft models.
Main Results:
- The Pt(II)-based SCCs demonstrated solubility across a wide concentration range (1 nM–5 µM).
- The complexes were found to be non-toxic to cells.
- Significant reduction in tumor growth rate was observed in vivo.
Conclusions:
- Pt(II)-based SCCs exhibit favorable properties for biomedical applications.
- These SCCs show potential as effective and safe antitumor therapeutic agents.
