A drug-eluting injectable nanogel for localized delivery of anticancer drugs to solid tumors

Date

2023

Authors

Godau, Brent
Samimi, Sadaf
Seyfoori, Amir
Samiei, Ehsan
Khani, Tahereh
Naserzadeh, Parvaneh
Najafabadi, Alireza Hassani
Lesha, Emal
Majidzadeh-A, Keivan
Ashtari, Behnaz

Journal Title

Journal ISSN

Volume Title

Publisher

Pharmaceutics

Abstract

Systemically administered chemotherapy reduces the efficiency of the anticancer agent at the target tumor tissue and results in distributed drug to non-target organs, inducing negative side effects commonly associated with chemotherapy and necessitating repeated administration. Injectable hydrogels present themselves as a potential platform for non-invasive local delivery vehicles that can serve as a slow-releasing drug depot that fills tumor vasculature, tissue, or resection cavities. Herein, we have systematically formulated and tested an injectable shear-thinning hydrogel (STH) with a highly manipulable release profile for delivering doxorubicin, a common chemotherapeutic. By detailed characterization of the STH physical properties and degradation and release dynamics, we selected top candidates for testing in cancer models of increasing biomimicry. Two-dimensional cell culture, tumor-on-a-chip, and small animal models were used to demonstrate the high anticancer potential and reduced systemic toxicity of the STH that exhibits long-term (up to 80 days) doxorubicin release profiles for treatment of breast cancer and glioblastoma. The drug-loaded STH injected into tumor tissue was shown to increase overall survival in breast tumor- and glioblastoma-bearing animal models by 50% for 22 days and 25% for 52 days, respectively, showing high potential for localized, less frequent treatment of oncologic disease with reduced dosage requirements.

Description

Keywords

localized therapy, shear-thinning hydrogel, cancer therapy, glioblastoma, breast cancer

Citation

Godau, B., Samimi, S., Seyfoori, A., Samiei, E., Khani, T., Naserzadeh, P., Najafabadi, A. H., Lesha, E., Majidzadeh-A, K., Ashtari, B., Charest, G., Morin, C., Fortin, D., & Akbari, M. (2023). A drug-eluting injectable nanogel for localized delivery of anticancer drugs to solid tumors. Pharmaceutics, 15(9), 2255. https://doi.org/10.3390/pharmaceutics15092255