Augmented therapeutic efficacy of Gemcitabine conjugated self-assembled nanoparticles for cancer chemotherapy

被引:4
作者
Paroha, Shweta [1 ]
Verma, Juhi [2 ]
Chandel, Arvind K. Singh [3 ]
Kumari, Shalini [4 ]
Rani, Laxmi [1 ]
Dubey, Ravindra Dhar [5 ]
Mahto, Aman Kumar [6 ]
Panda, Amulya K. [2 ]
Sahoo, Pravat Kumar [1 ,7 ]
Dewangan, Rikeshwer Prasad [6 ,8 ]
机构
[1] Delhi Pharmaceut Sci & Res Univ, Delhi Inst Pharmaceut Sci & Res DIPSAR, Dept Pharmaceut, New Delhi 110017, India
[2] Natl Inst Immunol, Prod Dev Cell, New Delhi 110067, India
[3] Univ Tokyo, Fac Med, Ctr Dis Biol & Integrat Med, 7-3-1 Hongo Bunkyo Ku, Tokyo 1138655, Japan
[4] Inst Genom & Integrat Biol, CSIR, Chem & Syst Biol Unit, Mathura Rd, New Delhi 110025, India
[5] Invictus Oncol Pvt Ltd, Patparganj Ind Area, New Delhi 110092, India
[6] Sch Pharmaceut Educ & Res, Dept Pharmaceut Chem, New Delhi 110062, India
[7] Dept Pharm DIPSAR, New Delhi 110017, India
[8] Sch Pharmaceut Educ & Res, Dept Pharmaceut Chem, New Delhi 110062, India
关键词
Gemcitabine; Anticancer; Nanoparticles; Plasma stability; Cytotoxicity; IN-VIVO; PHASE-II; DELIVERY; CYTOTOXICITY; PHARMACOKINETICS; MECHANISMS; APOPTOSIS; INSIGHT; VITRO;
D O I
10.1016/j.jddst.2022.103796
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Gemcitabine (Gem) is an FDA-approved anticancer drug used for the treatment of various solid tumors. Clinical applications of Gem are limited due to plasma instability, drug resistance and high dose. To overcome these limitations, we successfully conjugated Gem to a triblock copolymer (PCL-b-PEG-b-PCL) which self-assembled as nanoparticles (NPs) into aqueous media. Conjugation of Gem to triblock copolymer has been chemically confirmed by 1H NMR and biologically by a nucleoside transporter inhibition assay. The amount of Gem con-jugated in NPs was quantified by UPLC-MS/MS and characterized by particle size, surface charge, Osmolality, Transmission Electron Microscopy (TEM), Differential Scanning Calorimetry (DSC) and X-ray Powder Diffraction (XRD). The self-assembled NPs improved plasma stability of Gem and reduced blood hemolysis. In vitro cyto-toxicity of the NPs was evaluated against MCF-7, A549, and 4T1 cells by MTT assay. The nucleoside transporter inhibition study demonstrated that NPs are not dependent on nucleoside transporters for entry into the cells. The cytotoxicity of NPs was conquered through enhanced cellular internalization and loss of mitochondrial mem-brane potential. In vivo efficacy study demonstrated that Gem conjugated NPs showed 1.7-fold more potent in tumor growth inhibition as compared to free Gem in the 4T1 bearing Balb/c mice. Furthermore, there were no histological abnormalities observed in major organs after treatment across the groups. The finding demonstrated that developed Gem conjugated self-assembled NPs could be a potential and improved therapeutic clinical outcome of anticancer drugs.
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页数:13
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