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Wiwatchaitawee K, Mekkawy AI, Quarterman JC, Naguib YW, Ebeid K, Geary SM, Salem AK. The MEK 1/2 inhibitor PD98059 exhibits synergistic anti-endometrial cancer activity with paclitaxel in vitro and enhanced tissue distribution in vivo when formulated into PAMAM-coated PLGA-PEG nanoparticles. Drug Deliv Transl Res 2021; 12:1684-1696. [PMID: 34635984 DOI: 10.1007/s13346-021-01065-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/08/2021] [Indexed: 11/25/2022]
Abstract
Endometrial cancer is the most common gynecological cancer that affects the female reproductive organs. The standard therapy for EC for the past two decades has been chemotherapy and/or radiotherapy. PD98059 is a reversible MEK inhibitor that was found in these studies to increase the cytotoxicity of paclitaxel (PTX) against human endometrial cancer cells (Hec50co) in a synergistic and dose-dependent manner. Additionally, while PD98059 arrested Hec50co cells at the G0/G1 phase, and PTX increased accumulation of cells at the G2/M phase, the combination treatment increased accumulation at both the G0/G1 and G2/M phases at low PTX concentrations. We recently developed poly(lactide-co-glycolide) (PLGA) nanoparticles (NPs) modified with polyethylene glycol (PEG) and coated with polyamidoamine (PAMAM) (referred to here as PGM NPs) which have favorable biodistribution profiles in mice, compared to PD98059 solution. Here, in order to enhance tissue distribution of PD98059, PD98059-loaded PGM NPs were prepared and characterized. The average size, zeta potential, and % encapsulation efficiency (%EE) of these NPs was approximately 184 nm, + 18 mV, and 23%, respectively. The PD98059-loaded PGM NPs released ~ 25% of the total load within 3 days in vitro. In vivo murine studies revealed that the pharmacokinetics and biodistribution profile of intravenous (IV) injected PD98059 was improved when delivered as PD98059-loaded PGM NPs as opposed to soluble PD98059. Further investigation of the in vivo efficacy and safety of this formulation is expected to emphasize the potential of its clinical application in combination with commercial PTX formulations against different cancers.
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Affiliation(s)
- Kanawat Wiwatchaitawee
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, 52242, USA
| | - Aml I Mekkawy
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, 52242, USA
- Department of Pharmaceutics and Clinical Pharmacy, Faculty of Pharmacy, Sohag University, Sohag, 82524, Egypt
| | - Juliana C Quarterman
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, 52242, USA
| | - Youssef W Naguib
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, 52242, USA
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Manufacturing, Deraya University, New Minia City, 61768, Minia, Egypt
| | - Kareem Ebeid
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, 52242, USA
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Manufacturing, Deraya University, New Minia City, 61768, Minia, Egypt
| | - Sean M Geary
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, 52242, USA
| | - Aliasger K Salem
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa, Iowa City, IA, 52242, USA.
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, 52242, USA.
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