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Li H, Van Herck S, Liu Y, Hao Y, Ding X, Nuhn L, Zhong Z, Combes F, Sanders NN, Lienenklaus S, Koker SD, David SA, Wang Y, De Geest BG, Zhang Z. Imidazoquinoline-Conjugated Degradable Coacervate Conjugate for Local Cancer Immunotherapy. ACS Biomater Sci Eng 2020; 6:4993-5000. [PMID: 33455292 DOI: 10.1021/acsbiomaterials.0c00485] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Strategies that can reduce the harmful side effects of potent immunomodulatory drugs are in high demand to facilitate clinical translation of the newest generation of immunotherapy. Indeed, uncontrolled triggering of the immune system can lead to life-threatening cascade reactions, such as e.g. cytokine storm. In particular, drug formulations that combine simplicity and degradability are of formidable relevance. Imidazoquinolines are an excellent example of such small molecule immunomodulatory drugs that exhibit in unformulated form a highly undesirable pharmacokinetic profile. Imidazoquinolines are potent inducers of type I interferons that are of great interest in the context of anticancer and antiviral therapy through triggering of Toll like receptors 7 and 8. In this work we aimed to alter the pharmacokinetic profile of imidazoquinolines using a simple, yet efficient, strategy that holds high potential for clinical translation. Hereto, we conjugated an imidazoquinoline to the backbone of poly(aspartate) and further formulated this into a degradable coacervate through complex coacervation with a nontoxic degradable polycation. The intrinsic TLR activity of the imidazoquinoline was well preserved and our formulation strategy offered spatial control over its biological activity in vivo.
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Affiliation(s)
- Hui Li
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Road, Jinan, Shandong Province 250012, P. R. China
| | - Simon Van Herck
- Department of Pharmaceutics, Ghent University, 9000 Ghent, Belgium
| | - Yongjun Liu
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Road, Jinan, Shandong Province 250012, P. R. China
| | - Yanyun Hao
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Road, Jinan, Shandong Province 250012, P. R. China
| | - Xiaochu Ding
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, New York 14853, United States
| | - Lutz Nuhn
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Zifu Zhong
- Laboratory of Gene Therapy, Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, 9000 Ghent, Belgium
| | - Francis Combes
- Laboratory of Gene Therapy, Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, 9000 Ghent, Belgium
| | - Niek N Sanders
- Laboratory of Gene Therapy, Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, 9000 Ghent, Belgium
| | - Stefan Lienenklaus
- Institute for Laboratory Animal Science, Hannover Medical School, Hannover 30625, Germany
| | - Stefaan D Koker
- Department of Pharmaceutics, Ghent University, 9000 Ghent, Belgium
| | - Sunil A David
- ViroVax, LLC 5950 Research Parkway, Lawrence, Kansas 66047, United States
| | - Yadong Wang
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, New York 14853, United States
| | - Bruno G De Geest
- Department of Pharmaceutics, Ghent University, 9000 Ghent, Belgium
| | - Zhiyue Zhang
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Road, Jinan, Shandong Province 250012, P. R. China
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