Volume 16, Issue 26 2002044
Full Paper

Is GSH Chelated Pt Molecule Inactive in Anti-Cancer Treatment? A Case Study of Pt6GS4

Chunyu Zhang

Chunyu Zhang

Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, 100124 P. R. China

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Liang Gao

Corresponding Author

Liang Gao

Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, 100124 P. R. China

E-mail: [email protected],[email protected]

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Qing Yuan

Qing Yuan

Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, 100124 P. R. China

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Lina Zhao

Lina Zhao

CAS Key Laboratory for the Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Wenchao Niu

Wenchao Niu

Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, 100124 P. R. China

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Pengju Cai

Pengju Cai

CAS Key Laboratory for the Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Jiaojiao Li

Jiaojiao Li

Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, 100124 P. R. China

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Xu Han

Xu Han

CAS Key Laboratory for the Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Zhesheng He

Zhesheng He

CAS Key Laboratory for the Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Fuping Gao

Fuping Gao

CAS Key Laboratory for the Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Yaling Wang

Yaling Wang

CAS Key Laboratory for the Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Huaidong Jiang

Huaidong Jiang

School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210 P. R. China

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Zhifang Chai

Zhifang Chai

CAS Key Laboratory for the Biological Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Xueyun Gao

Corresponding Author

Xueyun Gao

Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, 100124 P. R. China

E-mail: [email protected],[email protected]

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First published: 05 June 2020
Citations: 10

Abstract

Platinum (Pt) drugs are widely used in anti-cancer treatment although many reports advocated that tumor cells could inactivate Pt drugs via glutathione-Pt (GSH-Pt) adducts formation. To date, GSH chelated Pt molecules have not been assessed in cancer treatment because GSH-Pt adducts are not capable of killing cancer cells, which is widely accepted and well followed. In this report, endogenous biothiol is utilized to precisely synthesize a GSH chelated Pt molecule (Pt6GS4). This Pt6GS4 molecule can be well taken up by aggressive triple negative breast cancer (TNBC) cells. Subsequently, its metabolites could enter nuclei to interact with DNA, finally the DNA-Pt complex triggers TNBC cell apoptosis via the p53 pathway. Impressively, high efficacy for anti-cancer treatment is achieved by Pt6GS4 both in vitro and in vivo when compared with traditional first-line carboplatin in the same dosage. Compared with carboplatin, Pt6GS4 keeps tumor bearing mice alive for a longer time and is non-toxic for the liver and kidneys. This work opens a route to explore polynuclear Pt compound with accurate architecture for enhancing therapeutic effects and reducing systemic toxicity.

Conflict of Interest

The authors declare no conflict of interest.

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