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He W, Du Y, Wang T, Wang J, Cheng L, Li X. Dimeric Artesunate-Phosphatidylcholine-Based Liposomes for Irinotecan Delivery as a Combination Therapy Approach. Mol Pharm 2021; 18:3862-3870. [PMID: 34470216 DOI: 10.1021/acs.molpharmaceut.1c00500] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In this work, dimeric artesunate-phosphatidylcholine conjugate (dARTPC)-based liposomes encapsulated with irinotecan (Ir) were developed for anticancer combination therapy. First, dARTPC featured with unique amphipathic properties formed liposomes by classical thin-film methods. After that, Ir was encapsulated into dARTPC-based liposomes (Ir/dARTPC-LP) by the triethylammonium sucrose octasulfate gradient method. Physicochemical characterization indicated that Ir/dARTPC-LP had a mean size of around 140 nm and a negative ζ potential of approximately -30 mV. Most noticeably, liposomes displayed an encapsulation efficiency of greater than 98% with a controllable drug loading of 4-22%. The in vitro release of dihydroartemisinin (DHA) and Ir from Ir/dARTPC-LP was investigated by dialysis in different media. It was found that effective release of both DHA (65.42%) and Ir (77.28%) in a weakly acidic medium (pH 5.0) after 48 h was achieved in comparison to very slow release under a neutral environment (DHA 9.90% and Ir 8.72%), indicating the controllable release of both drugs. Confocal laser scanning microscopy confirmed the improved cellular internalization of Ir/dARTPC-LP. The cytotoxicity of Ir/dARTPC-LP was evaluated in the MCF-7, A549, and HepG2 cell lines. The results showed that Ir/dARTPC-LP had significant synergistic efficacy in the loss of cell growth. In vivo anticancer evaluation was performed using a 4T1 xenograft tumor model. Ir/dARTPC-LP had a high tumor inhibition rate of 62.7% without significant toxicity in comparison with the injection of Ir solution. Taken together, dARTPC encapsulated with Ir has great potential for anticancer combination therapy.
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Affiliation(s)
- Wei He
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Yawei Du
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Tao Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Ji Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Lei Cheng
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Xinsong Li
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
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Cabal-Hierro L, O'Dwyer PJ. TNF Signaling through RIP1 Kinase Enhances SN38-Induced Death in Colon Adenocarcinoma. Mol Cancer Res 2017; 15:395-404. [PMID: 28087739 DOI: 10.1158/1541-7786.mcr-16-0329] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 11/29/2016] [Accepted: 01/02/2017] [Indexed: 11/16/2022]
Abstract
Elucidation of TNF-directed mechanisms for cell death induction and maintenance of tumor growth has revealed a role for receptor-interacting protein kinases 1 and 3 (RIPK1/RIP1 and RIPK3/RIP3), components of the necrosome complex, as determinants of cell fate. Here, the participation of TNF signaling was analyzed with regard to the cytotoxic action of different DNA-damaging agents in a panel of colon cancer cells. While most of these cell lines were insensitive to TNF, combination with these drugs increased sensitivity by inducing cell death and DNA damage, especially in the case of the topoisomerase inhibitor SN38. Changes in levels of RIP1 and RIP3 occurred following monotherapy with SN38 or in combination with TNF. Downregulation of RIP1 resulted in increased resistance to SN38, implying a requirement for RIP1 in mediating cytotoxicity through the TNF/TNFR signaling pathway. Downregulation of RIP1 in a xenograft model impaired tumor growth inhibition from SN38 treatment, suggesting the potential of RIP1 to determine the clinical outcome of irinotecan treatment. These results indicate that TNF plays a key role in determining the cytotoxic effectiveness of SN38 in colorectal cancer and suggests a re-evaluation of TNF-based interventions to enhance therapeutic efficacy.Implications: The capacity of RIP1 to influence drug sensitivity suggests RIP1 may have biomarker potential. Mol Cancer Res; 15(4); 395-404. ©2017 AACR.
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Affiliation(s)
- Lucia Cabal-Hierro
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania.
| | - Peter J O'Dwyer
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania
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Brezova V, Valko M, Breza M, Morris H, Telser J, Dvoranova D, Kaiserova K, Varecka L, Mazur M, Leibfritz D. Role of Radicals and Singlet Oxygen in Photoactivated DNA Cleavage by the Anticancer Drug Camptothecin: An Electron Paramagnetic Resonance Study. J Phys Chem B 2003. [DOI: 10.1021/jp027743m] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- V. Brezova
- School of Pharmacy and Chemistry, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom, Faculty of Chemical and Food Technology, Slovak Technical University, SK-812 37 Bratislava, Slovakia, Department of Organic Chemistry 2/NW2, Bremen University, D-283 59 Bremen, Germany, and Chemistry Program, Roosevelt University, 430 South Michigan Avenue, Chicago, Illinois 60605
| | - M. Valko
- School of Pharmacy and Chemistry, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom, Faculty of Chemical and Food Technology, Slovak Technical University, SK-812 37 Bratislava, Slovakia, Department of Organic Chemistry 2/NW2, Bremen University, D-283 59 Bremen, Germany, and Chemistry Program, Roosevelt University, 430 South Michigan Avenue, Chicago, Illinois 60605
| | - M. Breza
- School of Pharmacy and Chemistry, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom, Faculty of Chemical and Food Technology, Slovak Technical University, SK-812 37 Bratislava, Slovakia, Department of Organic Chemistry 2/NW2, Bremen University, D-283 59 Bremen, Germany, and Chemistry Program, Roosevelt University, 430 South Michigan Avenue, Chicago, Illinois 60605
| | - H. Morris
- School of Pharmacy and Chemistry, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom, Faculty of Chemical and Food Technology, Slovak Technical University, SK-812 37 Bratislava, Slovakia, Department of Organic Chemistry 2/NW2, Bremen University, D-283 59 Bremen, Germany, and Chemistry Program, Roosevelt University, 430 South Michigan Avenue, Chicago, Illinois 60605
| | - J. Telser
- School of Pharmacy and Chemistry, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom, Faculty of Chemical and Food Technology, Slovak Technical University, SK-812 37 Bratislava, Slovakia, Department of Organic Chemistry 2/NW2, Bremen University, D-283 59 Bremen, Germany, and Chemistry Program, Roosevelt University, 430 South Michigan Avenue, Chicago, Illinois 60605
| | - D. Dvoranova
- School of Pharmacy and Chemistry, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom, Faculty of Chemical and Food Technology, Slovak Technical University, SK-812 37 Bratislava, Slovakia, Department of Organic Chemistry 2/NW2, Bremen University, D-283 59 Bremen, Germany, and Chemistry Program, Roosevelt University, 430 South Michigan Avenue, Chicago, Illinois 60605
| | - K. Kaiserova
- School of Pharmacy and Chemistry, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom, Faculty of Chemical and Food Technology, Slovak Technical University, SK-812 37 Bratislava, Slovakia, Department of Organic Chemistry 2/NW2, Bremen University, D-283 59 Bremen, Germany, and Chemistry Program, Roosevelt University, 430 South Michigan Avenue, Chicago, Illinois 60605
| | - L. Varecka
- School of Pharmacy and Chemistry, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom, Faculty of Chemical and Food Technology, Slovak Technical University, SK-812 37 Bratislava, Slovakia, Department of Organic Chemistry 2/NW2, Bremen University, D-283 59 Bremen, Germany, and Chemistry Program, Roosevelt University, 430 South Michigan Avenue, Chicago, Illinois 60605
| | - M. Mazur
- School of Pharmacy and Chemistry, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom, Faculty of Chemical and Food Technology, Slovak Technical University, SK-812 37 Bratislava, Slovakia, Department of Organic Chemistry 2/NW2, Bremen University, D-283 59 Bremen, Germany, and Chemistry Program, Roosevelt University, 430 South Michigan Avenue, Chicago, Illinois 60605
| | - D. Leibfritz
- School of Pharmacy and Chemistry, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom, Faculty of Chemical and Food Technology, Slovak Technical University, SK-812 37 Bratislava, Slovakia, Department of Organic Chemistry 2/NW2, Bremen University, D-283 59 Bremen, Germany, and Chemistry Program, Roosevelt University, 430 South Michigan Avenue, Chicago, Illinois 60605
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