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Fluorinated Anti-tubulin Phenyl-pyrroloquinolinones: In Vitro And In Vivo Anticancer Properties | 89537
ISSN: 2161-0444

Medicinal Chemistry
Open Access

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Fluorinated anti-tubulin phenyl-pyrroloquinolinones: In vitro and in vivo anticancer properties

10th World Congress on Medicinal Chemistry and Drug Design

Matteo Dal Pra

University of Padua, Italy

Posters & Accepted Abstracts: Med chem (Los Angeles)

DOI: 10.4172/2161-0444-C1-040

Tricycle Phenyl-Pyrroloquinolinones (PPyQs) are a class of compounds that have showed interesting in vitro and in vivo anti-proliferative activity acting as tubulin polymerization inhibitors by binding at the colchicine site into β-tubulin. The major initial focus on introducing fluorine into biologically active compounds is to improve their metabolic stability by blocking potential reactive positions with fluorine. In an attempt to reduce the oxidative metabolism of 7-PPyQs and at the same time to possibly maintain the excellent pharmacodynamic, we designed the synthesis of some compounds 12-15 and 19, monofluoro-phenyl derivatives of the earlier 3-ethyl-7-PPyQ 20 and 3-benzoyl-7-PPyQ 21. Of the new compounds synthesized, potent cytotoxicity (low and sub-nanomolar GI50 values) was observed with 12 and 13, both more potent than 20, in both leukemic and solid tumor cell lines. Neither compound 12 nor 13 induced significant cell death in normal human lymphocytes, suggesting that the compounds may be selectively active against cancer cells. In particular, 13 was a potent inducer of apoptosis in the A549 and HeLa cell lines. With both compounds, induction of apoptosis was associated with dissipation of the mitochondrial transmembrane potential and production of reactive oxygen species, indicating that cells followed the intrinsic pathway of apoptosis. Experiments carried out in a mouse syngeneic model demonstrated high antitumor activity of 13, which significantly reduced the tumor mass at doses four-ten times lower than that required for the CA-4P used as reference compound. Finally, molecular docking and metabolic stability studies of the newly synthesized compounds will be reported

tteo Dal Prà has completed his PhD at the University of Padova, School of Medicine, Department of Pharmaceutical and Pharmacological Sciences.

E-mail: [email protected]