Bioinspired Lipoproteins of Furoxans–Gemcitabine Preferentially Targets Glioblastoma and Overcomes Radiotherapy Resistance

Author:

Sun Maoyuan1,Xie Honglei2,Zhang Wenli3,Li Xianlu4,Jiang Zhan5,Liang Yiyu4,Zhao Guanjian1,Huang Ning1,Mao Jinning6,Liu Guodong1,Zhang Zhiwen4ORCID

Affiliation:

1. Department of Neurosurgery The Second Affiliated Hospital of Chongqing Medical University Chongqing 400016 China

2. Institute of Pharmacology School of Pharmaceutical Sciences Shandong First Medical University & Shandong Academy of Medical Sciences 619 Changcheng Road Taian 271016 China

3. Department of Radiology The Second Affiliated Hospital of Chongqing Medical University Chongqing 400016 China

4. School of Pharmacy & Key Laboratory of Smart Drug Delivery (Ministry of Education) Fudan University Shanghai 201203 China

5. Department of Oncology The Chongqing General Hospital Chongqing 400016 China

6. Health Management Center The Second Affiliated Hospital Chongqing Medical University Chongqing 400016 China

Abstract

AbstractRadiotherapy (RT) resistance is an enormous challenge in glioblastoma multiforme (GBM) treatment, which is largely associated with DNA repair, poor distribution of reactive radicals in tumors, and limited delivery of radiosensitizers to the tumor sites. Inspired by the aberrant upregulation of RAD51 (a critical protein of DNA repair), scavenger receptor B type 1 (SR‐B1), and C‐C motif chemokine ligand 5 (CCL5) in GBM patients, a reduction‐sensitive nitric oxide (NO) donor conjugate of gemcitabine (RAD51 inhibitor) (NG) is synthesized as radio‐sensitizer and a CCL5 peptide‐modified bioinspired lipoprotein system of NG (C‐LNG) is rationally designed, aiming to preferentially target the tumor sites and overcome the RT resistance. C‐LNG can preferentially accumulate at the orthotopic GBM tumor sites with considerable intratumor permeation, responsively release the gemcitabine and NO, and then generate abundant peroxynitrite (ONOO) upon X‐ray radiation, thereby producing a 99.64% inhibition of tumor growth and a 71.44% survival rate at 120 days in GL261‐induced orthotopic GBM tumor model. Therefore, the rationally designed bioinspired lipoprotein of NG provides an essential strategy to target GBM and overcome RT resistance.

Funder

National Key Research and Development Program of China

National Natural Science Foundation of China

Natural Science Foundation of Chongqing Municipality

Publisher

Wiley

Subject

General Physics and Astronomy,General Engineering,Biochemistry, Genetics and Molecular Biology (miscellaneous),General Materials Science,General Chemical Engineering,Medicine (miscellaneous)

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