1
|
PLG-g-mPEG Mediated Multifunctional Nanoparticles for Photoacoustic Imaging Guided Combined Chemo/Photothermal Antitumor Therapy. CHINESE JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1007/s10118-022-2857-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
2
|
Yang Z, Lin L, Guo Z, Guo X, Tang Z, Tian H, Chen X. Synthetic Helical Polypeptide as a Gene Transfection Enhancer. Biomacromolecules 2022; 23:2867-2877. [PMID: 35678301 DOI: 10.1021/acs.biomac.2c00331] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The relatively low transfection efficiency limits further application of polymeric gene carriers. It is imperative to exploit a universal and simple strategy to enhance the gene transfection efficiency of polymeric gene carriers. Herein, we prepared a cationic polypeptide poly(γ-aminoethylthiopropyl-l-glutamate) (PALG-MEA, termed PM) with a stable α-helical conformation, which can significantly improve the gene transfection efficiency of cationic polymers. PM can be integrated into polymeric gene delivery systems noncovalently through electrostatic interactions. With the assistance of PM, polymeric gene delivery systems exhibited excellent cellular uptake and endosomal escape, thereby enhancing transfection efficiency. The transfection enhancement effect of PM was applicable to a variety of cationic polymers such as polyethylenimine (PEI), poly-l-lysine (PLL), and polyamidoamine (PAMAM). The ternary gene delivery system PM/pshVEGF/PEI exhibited an excellent antitumor effect against the B16F10 tumor model. Moreover, we demonstrated that PM could also enhance the delivery of gene editing systems (sgRNA-Cas9 plasmids). This work provides a facile and effective strategy for constructing polymeric gene delivery systems with a high transfection efficiency.
Collapse
Affiliation(s)
- Zhiyu Yang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.,University of Science and Technology of China, Hefei 230026, China.,Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, China
| | - Lin Lin
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.,University of Science and Technology of China, Hefei 230026, China.,Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, China
| | - Zhaopei Guo
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.,Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, China
| | - Xiaoya Guo
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.,University of Science and Technology of China, Hefei 230026, China.,Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, China
| | - Zhaohui Tang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.,University of Science and Technology of China, Hefei 230026, China.,Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, China
| | - Huayu Tian
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.,University of Science and Technology of China, Hefei 230026, China.,Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.,University of Science and Technology of China, Hefei 230026, China.,Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, China
| |
Collapse
|
3
|
Wang Y, Huo J, Li S, Huang R, Fan D, Cheng H, Wan B, Du Y, He H, Zhang G. Self-Rectifiable and Hypoxia-Assisted Chemo-Photodynamic Nanoinhibitor for Synergistic Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2022; 14:10092-10101. [PMID: 35170301 DOI: 10.1021/acsami.1c23121] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Photodynamic therapy (PDT) can eradicate cancer cells under light irradiation, mainly because of reactive singlet oxygen (1O2) being transformed from intratumoral oxygen. Nonetheless, the consumption of oxygen during PDT results in serious hypoxic conditions and an elevated hypoxia-inducing factor-1α (HIF-1α) level that hamper further photodynamic efficacy and induce tumor metastasis. To address this problem, we developed hypoxia-assisted NP-co-encapsulating Ce6 (photosensitizer) and YC-1 (HIF-1α inhibitor) as a self-rectifiable nanoinhibitor for synergistic antitumor treatment. PDT-aggravated intracellular hypoxic stress facilitated NP dissociation to release the drug (YC-1), which achieved tumor killing and HIF-1α inhibition to further enhance the therapeutic effect of PDT and prevent tumor metastasis. Besides, in vivo studies revealed that the HC/PI@YC-1 NPs afforded synergistic anticancer efficacy with minimal toxicity. Therefore, this study provides a prospective approach against PDT drawbacks and combination cancer therapy.
Collapse
Affiliation(s)
- Yanan Wang
- College of Veterinary Medicine, International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, China
| | - Jian Huo
- College of Veterinary Medicine, International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, China
| | - Shuang Li
- Department of Pathology, Zhengzhou University People's Hospital (Henan Provincial People's Hospital), Zhengzhou 450003, China
| | - Ran Huang
- College of Veterinary Medicine, International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, China
| | - Daopeng Fan
- College of Veterinary Medicine, International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, China
| | - Hanghang Cheng
- College of Veterinary Medicine, International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, China
| | - Bo Wan
- College of Veterinary Medicine, International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, China
| | - Yongkun Du
- College of Veterinary Medicine, International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, China
| | - Hua He
- College of Veterinary Medicine, International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, China
| | - Gaiping Zhang
- College of Veterinary Medicine, International Joint Research Center of National Animal Immunology, Henan Agricultural University, Zhengzhou 450046, China
| |
Collapse
|
4
|
Affiliation(s)
- Zhiyu Yang
- Key Laboratory of Polymer Ecomaterials Chinese Academy of Sciences Changchun Institute of Applied Chemistry Changchun China
- University of Science and Technology of China Hefei China
| | - Zhaopei Guo
- Key Laboratory of Polymer Ecomaterials Chinese Academy of Sciences Changchun Institute of Applied Chemistry Changchun China
- Jilin Biomedical Polymers Engineering Laboratory Changchun China
| | - Huayu Tian
- Key Laboratory of Polymer Ecomaterials Chinese Academy of Sciences Changchun Institute of Applied Chemistry Changchun China
- University of Science and Technology of China Hefei China
- Jilin Biomedical Polymers Engineering Laboratory Changchun China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials Chinese Academy of Sciences Changchun Institute of Applied Chemistry Changchun China
- University of Science and Technology of China Hefei China
- Jilin Biomedical Polymers Engineering Laboratory Changchun China
| |
Collapse
|
5
|
Chen J, Guo Z, Jiao Z, Lin L, Xu C, Tian H, Chen X. Poly(l-glutamic acid)-Based Zwitterionic Polymer in a Charge Conversional Shielding System for Gene Therapy of Malignant Tumors. ACS APPLIED MATERIALS & INTERFACES 2020; 12:19295-19306. [PMID: 32239907 DOI: 10.1021/acsami.0c02769] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Recently, pH-sensitive polymers have received extensive attention in tumor therapy. However, the rapid response to pH changes is the key to achieving efficient treatment. Here, a novel shielding system with a rapidly pH-responsive polymer (PAMT) is synthesized by click reaction between poly(γ-allyl-l-glutamate) and thioglycolic acid or 2-(Boc-amino)ethanethiol. The zwitterionic biodegradable polymer PAMT, which is negatively charged at physiological pH, can be used to shield positively charged nanoparticles. PAMT is electrostatically attached to the surface of the positively charged PEI/pDNA complex to form a ternary complex. The zwitterionic PAMT-shielded complex exhibits rapid charge conversion when the pH decreases from 7.4 to 6.8. For the in vivo tumor inhibition experiment, PAMT/PEI/shVEGF injected intravenously shows a more significant inhibitory effect on tumor growth. The excellent results are mainly attributed to introduction of the zwitterionic copolymer PAMT, which can shield the positively charged PEI/shVEGF complex in physiological conditions, while the surface potential of the shielded complexes changes to a positive charge in the acidic tumor environment.
Collapse
Affiliation(s)
- Jie Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
- Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, China
| | - Zhaopei Guo
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, China
| | - Zixue Jiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Lin Lin
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
- Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, China
| | - Caina Xu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, China
| | - Huayu Tian
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
- Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
- Jilin Biomedical Polymers Engineering Laboratory, Changchun 130022, China
| |
Collapse
|
6
|
Bai L, Fei WD, Gu YY, He M, Du F, Zhang WY, Yang LL, Liu YJ. Liposomes encapsulated iridium(III) polypyridyl complexes enhance anticancer activity in vitro and in vivo. J Inorg Biochem 2020; 205:111014. [PMID: 32044395 DOI: 10.1016/j.jinorgbio.2020.111014] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 01/22/2020] [Accepted: 01/27/2020] [Indexed: 12/11/2022]
Abstract
Three iridium(III) complexes [Ir(ppy)2(CPIP)](PF6) (Ir-1, ppy = 2-phenylpyridine, CPIP = 2-(4-chlorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline), [Ir(ppy)2(DCPIP)](PF6) (Ir-2, DCPIP = 2-(3,4-dichlorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline) and [Ir(ppy)2(TCPIP)](PF6) (Ir-3, TCPIP = 2,3,5-trichlorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline) were synthesized and characterized. The complexes Ir-1, Ir-2 and Ir-3 were encapsulated in liposomes to form Ir-1-Lipo, Ir-2-Lipo and Ir-3-Lipo. Morphology, size distribution, and zeta potential of liposomes were examined by transmission electron microscopy (TEM) and Zetasizer. The cytotoxic activity in vitro of Ir-1, Ir-2 and Ir-3 against cancer A549, HTC-116, HepG2, BEL-7402, Eca-109, B16, HeLa SGC-7901 and normal NIH3T3 cells was evaluated by 3-(4,5-dimethylthiazole-2-yl)-2,5-biphenyl tetrazolium bromide (MTT) method. Ir-2 and Ir-3 show no cytotoxic activity against the selected cancer cells, and Ir-1 displays moderate cytotoxic effect on the cell growth in A549 cells. However, Ir-1, Ir-2 and Ir-3 were encapsulated in liposomes, the cytotoxic activity was greatly enhanced. In particular, Ir-1-Lipo and Ir-2-Lipo can effectively inhibit the cell growth in A549 cells with a low IC50 value of 3.1 ± 0.3 and 1.2 ± 0.4 μM. The apoptosis was assayed by flow cytometry. Ir-1, Ir-2 and Ir-3 reveal weak apoptotic effect, whereas Ir-1-Lipo, Ir-2-Lipo and Ir-3-Lipo induce an apoptotic percentage of 55.6%, 69.3% and 16.7% in A549 cells, respectively. Specially, in the assay of antitumor activity in vivo, the inhibiting percentage of tumor growth induced by Ir-2 is 27.65%, while inhibiting percentage of tumor growth caused by Ir-2-Lipo is 57.45%. Obviously, the liposomes can enhance anticancer activity in vitro and in vivo compared with the complexes. The results show that the iridium(III) complexes encapsulated liposomes induce apoptosis in A549 cells through ROS-mediated lysosome-mitochondria dysfunction pathway and target the microtubules.
Collapse
Affiliation(s)
- Lan Bai
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Wei-Dong Fei
- Department of Pharmacy, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, PR China
| | - Yi-Ying Gu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Miao He
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Fan Du
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Wen-Yao Zhang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Lin-Lin Yang
- Department of Pediatrics, Guangdong Women and Children Hospital, Guangzhou 510000, PR China.
| | - Yun-Jun Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China.
| |
Collapse
|
7
|
Wang H, Ding S, Zhang Z, Wang L, You Y. Cationic micelle: A promising nanocarrier for gene delivery with high transfection efficiency. J Gene Med 2019; 21:e3101. [PMID: 31170324 DOI: 10.1002/jgm.3101] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 05/25/2019] [Accepted: 05/29/2019] [Indexed: 12/15/2022] Open
Abstract
Micelles have demonstrated an excellent ability to deliver several different types of therapeutic agents, including chemotherapy drugs, proteins, small-interfering RNA and DNA, into tumor cells. Cationic micelles, comprising self-assemblies of amphiphilic cationic polymers, have exhibited tremendous promise with respect to the delivery of therapy genes and gene transfection. To date, research in the field has focused on achieving an enhanced stability of the micellar assembly, prolonged circulation times and controlled release of the gene. This review focuses on the micelles as a nanosized carrier system for gene delivery, the system-related modifications for cytoplasm release, stability and biocompatibility, and clinic trials. In accordance with the development of synthetic chemistry and self-assembly technology, the structures and functionalities of micelles can be precisely controlled, and hence the synthetic micelles not only efficiently condense DNA, but also facilitate DNA endocytosis, endosomal escape, DNA uptake and nuclear transport, resulting in a comparable gene transfection of virus.
Collapse
Affiliation(s)
- Haili Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China
| | - Shenggang Ding
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Ze Zhang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China
| | - Longhai Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China
| | - Yezi You
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, China
| |
Collapse
|
8
|
Zhang Y, Lin L, Liu L, Liu F, Sheng S, Tian H, Chen X. Positive feedback nanoamplifier responded to tumor microenvironments for self-enhanced tumor imaging and therapy. Biomaterials 2019; 216:119255. [PMID: 31229855 DOI: 10.1016/j.biomaterials.2019.119255] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/05/2019] [Accepted: 06/06/2019] [Indexed: 12/12/2022]
Abstract
Targeted activation or enhancement is an attractive strategy in the design of nano-theranostics. However, the responsiveness of the nanoagents is restricted by the limited levels of intra-tumor stimuli. Herein, we constructed a positive feedback nanoamplifier by encapsulating glucose oxidase (GOx) in the ferric ions contained metal organic framework (MIL-100), and coating the nanoparticles with polydopamine modified hyaluronic acid (HA-PDA). The mechanism of action of the ensuing nanoamplifiers was three pronged: 1) the high intra-tumor acidity accelerated the release of GOx, which consumed endogenous glucose and "starved" the tumors, in addition to aggravating the local acidity and H2O2 levels; 2) the hydroxyl radicals (·OH) generated from the Fenton-like reaction between MIL-100 with H2O2 contributed to the chemodynamic tumor therapy and augmented the O2 microenvironment, which could be speeded up under acid condition; 3) the oxygen (O2) produced in the Fenton-like reaction relieved the intra-tumor hypoxia and ensured the enzymatic reaction of GOx, along with augmenting the photoacoustic signal of nanoamplifier. Preliminary experiments in tumor bearing mice showed that the nanoamplifier not only boosted the local acidity/H2O2/O2 levels in tumor site to successfully suppress the growth of tumors through the self-enhanced chemodynamic/starving therapy, but also achieved the photoacoustic imaging of tumors. Taken together, this novel nanoamplifier with the abilities of self-enhanced tumor imaging and therapy is a promising entrant in the field of anti-tumor theranostics.
Collapse
Affiliation(s)
- Ying Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Jilin Biomedical Polymers Engineering Laboratory, Changchun, 130022, China
| | - Lin Lin
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; Jilin Biomedical Polymers Engineering Laboratory, Changchun, 130022, China
| | - Liang Liu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Jilin Biomedical Polymers Engineering Laboratory, Changchun, 130022, China
| | - Feng Liu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Jilin Biomedical Polymers Engineering Laboratory, Changchun, 130022, China
| | - Shu Sheng
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Jilin Biomedical Polymers Engineering Laboratory, Changchun, 130022, China
| | - Huayu Tian
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Jilin Biomedical Polymers Engineering Laboratory, Changchun, 130022, China.
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Jilin Biomedical Polymers Engineering Laboratory, Changchun, 130022, China
| |
Collapse
|
9
|
Xiang J, Liu X, Zhou Z, Zhu D, Zhou Q, Piao Y, Jiang L, Tang J, Liu X, Shen Y. Reactive Oxygen Species (ROS)-Responsive Charge-Switchable Nanocarriers for Gene Therapy of Metastatic Cancer. ACS APPLIED MATERIALS & INTERFACES 2018; 10:43352-43362. [PMID: 30465424 DOI: 10.1021/acsami.8b13291] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The application of nonviral gene vectors has been limited by their insufficient transfection efficiency because of poor serum stability, high endosomal entrapment, limited intracellular release, and low accumulation in the targeted organelle. It is still challenging to design gene carriers with properties that can overcome all of the barriers. We previously developed a reactive oxygen species (ROS)-responsive cationic polymer, poly[(2-acryloyl)ethyl( p-boronic acid benzyl) diethylammonium bromide] (B-PDEAEA), which switches the charge at high concentrations of intracellular ROS to promote intracellular DNA release. However, its gene-delivery efficiency has been limited by serum instability and lysosomal trapping, and coating with an anionic PEGylated lipid only showed mild enhancement. Herein, we coated the ROS-responsive B-PDEAEA polymer with two cationic lipids to form ROS-responsive lipopolyplexes with integrated properties to overcome multiple delivery barriers. The surface cationic lipids endowed the nanocarrier with improved serum stability, effective cellular uptake, and lysosomal evasion. The interior B-PDEAEA/DNA polyplexes, which were highly stable in the extracellular environment, but quickly dissociated, released DNA, promoted nuclei localization, and achieved efficient transcription. The mechanisms of the ROS-responsive and charge-switchable properties of B-PDEAEA were quantitatively studied. The transfection efficiency and antitumor activity of lipopolyplexes were studied in vitro and in vivo. We found that the ROS-responsive lipopolyplexes effectively delivered therapeutic genes into cell nuclei and caused high tumor inhibition in mice bearing peritoneal or lung metastases.
Collapse
Affiliation(s)
| | - Xin Liu
- Center for Stem Cell and Tissue Engineering, School of Medicine , Zhejiang University , Hangzhou 310058 , China
- Zhejiang Xinyue Biotechnology Co. Ltd. , Hangzhou 311121 , China
| | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Chen H, Gu Z, An H, Chen C, Chen J, Cui R, Chen S, Chen W, Chen X, Chen X, Chen Z, Ding B, Dong Q, Fan Q, Fu T, Hou D, Jiang Q, Ke H, Jiang X, Liu G, Li S, Li T, Liu Z, Nie G, Ovais M, Pang D, Qiu N, Shen Y, Tian H, Wang C, Wang H, Wang Z, Xu H, Xu JF, Yang X, Zhu S, Zheng X, Zhang X, Zhao Y, Tan W, Zhang X, Zhao Y. Precise nanomedicine for intelligent therapy of cancer. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9397-5] [Citation(s) in RCA: 279] [Impact Index Per Article: 46.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
11
|
Zhang Y, Wang L, Liu L, Lin L, Liu F, Xie Z, Tian H, Chen X. Engineering Metal-Organic Frameworks for Photoacoustic Imaging-Guided Chemo-/Photothermal Combinational Tumor Therapy. ACS APPLIED MATERIALS & INTERFACES 2018; 10:41035-41045. [PMID: 30403471 DOI: 10.1021/acsami.8b13492] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Imaging-guided therapy has considerable potential in tumor treatment. Different treatments have been integrated to realize combinational tumor therapy with improved therapeutic efficiency. Herein, the conventional metal-organic framework (MOF) MIL-100 is utilized to load curcumin with excellent encapsulation capacity. Polydopamine-modified hyaluronic acid (HA-PDA) is coated on the MIL-100 surface to construct engineering MOF nanoparticles (MCH NPs). The HA-PDA coating not only improves the dispersibility and stability of NPs but also introduces a tumor-targeting ability to this nanosystem. A two-stage augmented photothermal conversion capability is introduced to this nanosystem by encapsulating curcumin in MIL-100 pores and then coating HA-PDA on the surface, which confer the MCH NPs with strong photothermal conversional efficiency. After being intravenously injected into xenograft HeLa tumor-bearing mice, MCH NPs prefer to accumulate at the tumor site and achieve photoacoustic imaging-guided chemo-/photothermal combinational tumor therapy, generating nearly complete tumor ablation. Engineering MOFs is an efficient platform for imaging-guided combinational tumor therapy, as confirmed by in vitro and in vivo evaluations.
Collapse
Affiliation(s)
- Ying Zhang
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | | | - Liang Liu
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | | | - Feng Liu
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | | | | | | |
Collapse
|
12
|
Chen J, Wang K, Wu J, Tian H, Chen X. Polycations for Gene Delivery: Dilemmas and Solutions. Bioconjug Chem 2018; 30:338-349. [PMID: 30383373 DOI: 10.1021/acs.bioconjchem.8b00688] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Gene therapy has been a promising strategy for treating numerous gene-associated human diseases by altering specific gene expressions in pathological cells. Application of nonviral gene delivery is hindered by various dilemmas encountered in systemic gene therapy. Therefore, solutions must be established to address the unique requirements of gene-based treatment of diseases. This review will particularly highlight the dilemmas in polycation-based gene therapy by systemic treatment. Several promising strategies, which are expected to overcome these challenges, will be briefly reviewed. This review will also explore the development of polycation-based gene delivery systems for clinical applications.
Collapse
Affiliation(s)
- Jie Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China.,University of Science and Technology of China , Hefei 230026 , P. R. China.,Jilin Biomedical Polymers Engineering Laboratory , Changchun 130022 , P. R. China
| | - Kui Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China.,University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Jiayan Wu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China.,University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Huayu Tian
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China.,University of Science and Technology of China , Hefei 230026 , P. R. China.,Jilin Biomedical Polymers Engineering Laboratory , Changchun 130022 , P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China.,University of Science and Technology of China , Hefei 230026 , P. R. China.,Jilin Biomedical Polymers Engineering Laboratory , Changchun 130022 , P. R. China
| |
Collapse
|
13
|
Ramesh K, Anugrah DSB, Lim KT. Supramolecular poly(N-acryloylmorpholine)-b-poly(d,l-lactide) pseudo-block copolymer via host-guest interaction for drug delivery. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.06.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
14
|
Liu Y, Song Z, Zheng N, Nagasaka K, Yin L, Cheng J. Systemic siRNA delivery to tumors by cell-penetrating α-helical polypeptide-based metastable nanoparticles. NANOSCALE 2018; 10:15339-15349. [PMID: 30070662 PMCID: PMC6734929 DOI: 10.1039/c8nr03976c] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Systemic, non-viral siRNA delivery for cancer treatment is mainly achieved via condensation by cationic materials (e.g., lipids and cationic polymers), which nevertheless, suffers from poor serum stability, non-specific tissue interaction, and unsatisfactory membrane activity against efficient in vivo gene knockdown. Here, we report the design of a metastable, cancer-targeting siRNA delivery system based on two functional polymers, PVBLG-8, a cationic, helical cell-penetrating polypeptide, and poly(l-glutamic acid) (PLG), an anionic random-coiled polypeptide. PVBLG-8 with rigid, linear structure showed weak siRNA condensation capability, and PLG with flexible chains was incorporated as a stabilizer which provided sufficient molecular entanglement with PVBLG-8 to encapsulate the siRNA within the polymeric network. The obtained PVBLG-8/siRNA/PLG nanoparticles (PSP NPs) with positive charges were sequentially coated with additional amount of PLG, which reversed the surface charge from positive to negative to yield the metastable PVBLG-8/siRNA/PLG@PLG (PSPP) NPs. The PSPP NPs featured desired serum stability during circulation to enhance tumor accumulation via the enhanced permeability and retention (EPR) effect. Upon acidification in the tumor extracellular microenvironment and intracellular endosomes, the partial protonation of PLG on PSPP NPs surface would lead to dissociation of PLG coating from NPs, exposure of the highly membrane-active PVBLG-8, and surface charge reversal from negative to positive, which subsequently promoted tumor penetration, selective cancer cell internalization, and efficient endolysosomal escape. When siRNA against epidermal growth factor receptor (EGFR) was encapsulated, the PSPP NPs showed excellent tumor penetration capability, tumor cell uptake level, EGFR silencing efficiency, and tumor growth inhibition efficacy in U-87 MG glioblastoma tumor spheroids in vitro and in xenograft tumor-bearing mice in vivo, outperforming the PSP NPs and several commercial reagents such as Lipofectamine 2000 and poly(l-lysine) (PLL). This study therefore demonstrates a facile and unique design approach of metastable and charge reversal NPs, which overcomes multiple biological barriers against systemic siRNA delivery toward anti-cancer treatment.
Collapse
Affiliation(s)
- Yang Liu
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Illinois 61801, USA
| | - Ziyuan Song
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Illinois 61801, USA
| | - Nan Zheng
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Illinois 61801, USA
| | - Kenya Nagasaka
- School of Molecular and Cellular Biology, University of Illinois at Urbana-Champaign, Illinois 61801, USA
| | - Lichen Yin
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
- Corresponding author: (J.C.); (L.Y.)
| | - Jianjun Cheng
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Illinois 61801, USA
- Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Micro and Nanotechnology Lab, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
- Corresponding author: (J.C.); (L.Y.)
| |
Collapse
|
15
|
Yadav N, Kumar N, Prasad P, Shirbhate S, Sehrawat S, Lochab B. Stable Dispersions of Covalently Tethered Polymer Improved Graphene Oxide Nanoconjugates as an Effective Vector for siRNA Delivery. ACS APPLIED MATERIALS & INTERFACES 2018; 10:14577-14593. [PMID: 29634909 DOI: 10.1021/acsami.8b03477] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Conjugates of poly(amidoamine) (PAMAM) with modified graphene oxide (GO) are attractive nonviral vectors for gene-based cancer therapeutics. GO protects siRNA from enzymatic cleavage and showed reasonable transfection efficiency along with simultaneous benefits of low cost and large scale production. PAMAM is highly effective in siRNA delivery but suffers from high toxicity with poor in vivo efficacy. Co-reaction of GO and PAMAM led to aggregation and more importantly, have detrimental effect on stability of dispersion at physiological pH preventing their exploration at clinical level. In the current work, we have designed, synthesized, characterized and explored a new type of hybrid vector (GPD), using GO synthesized via improved method which was covalently tethered with poly(ethylene glycol) (PEG) and PAMAM. The existence of covalent linkage, relative structural changes and properties of GPD is well supported by Fourier transform infrared (FTIR), UV-visible (UV-vis), Raman, X-ray photoelectron (XPS), elemental analysis, powder X-ray diffraction (XRD), thermogravimetry analysis (TGA), dynamic light scattering (DLS), and zeta potential. Scanning electron microscopy (SEM), and transmission electron microscopy (TEM) of GPD showed longitudinally aligned columnar self-assembled ∼10 nm thick polymeric nanoarchitectures onto the GO surface accounting to an average size reduction to ∼20 nm. GPD revealed an outstanding stability in both phosphate buffer saline (PBS) and serum containing cell medium. The binding efficiency of EPAC1 siRNA to GPD was supported by gel retardation assay, DLS, zeta potential and photoluminescence (PL) studies. A lower cytotoxicity with enhanced cellular uptake and homogeneous intracellular distribution of GPD/siRNA complex is confirmed by imaging studies. GPD exhibited a higher transfection efficiency with remarkable inhibition of cell migration and lower invasion than PAMAM and Lipofectamine 2000 suggesting its role in prevention of breast cancer progression and metastasis. A significant reduction in the expression of the specific protein against which siRNA was delivered is revealed by Western blot assay. Furthermore, a pH-triggered release of siRNA from the GPD/siRNA complex was studied to provide a mechanistic insight toward unloading of siRNA from the vector. Current strategy is a way forward for designing effective therapeutic vectors for gene-based antitumor therapy.
Collapse
Affiliation(s)
| | | | | | | | - Seema Sehrawat
- Department of Medicine , Harvard Medical School , Boston , Massachusetts 02115 , United States
| | | |
Collapse
|
16
|
Wang Y, Sun S, Zhang Z, Shi D. Nanomaterials for Cancer Precision Medicine. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1705660. [PMID: 29504159 DOI: 10.1002/adma.201705660] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 10/28/2017] [Indexed: 05/21/2023]
Abstract
Medical science has recently advanced to the point where diagnosis and therapeutics can be carried out with high precision, even at the molecular level. A new field of "precision medicine" has consequently emerged with specific clinical implications and challenges that can be well-addressed by newly developed nanomaterials. Here, a nanoscience approach to precision medicine is provided, with a focus on cancer therapy, based on a new concept of "molecularly-defined cancers." "Next-generation sequencing" is introduced to identify the oncogene that is responsible for a class of cancers. This new approach is fundamentally different from all conventional cancer therapies that rely on diagnosis of the anatomic origins where the tumors are found. To treat cancers at molecular level, a recently developed "microRNA replacement therapy" is applied, utilizing nanocarriers, in order to regulate the driver oncogene, which is the core of cancer precision therapeutics. Furthermore, the outcome of the nanomediated oncogenic regulation has to be accurately assessed by the genetically characterized, patient-derived xenograft models. Cancer therapy in this fashion is a quintessential example of precision medicine, presenting many challenges to the materials communities with new issues in structural design, surface functionalization, gene/drug storage and delivery, cell targeting, and medical imaging.
Collapse
Affiliation(s)
- Yilong Wang
- The Institute for Translational Nanomedicine, Shanghai East Hospital, the Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200092, P. R. China
| | - Shuyang Sun
- Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, P. R. China
| | - Zhiyuan Zhang
- Department of Oral and Maxillofacial-Head Neck Oncology, Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, P. R. China
| | - Donglu Shi
- The Institute for Translational Nanomedicine, Shanghai East Hospital, the Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200092, P. R. China
- The Materials Science and Engineering Program, College of Engineering and Applied Science, 2901 Woodside Drive, Cincinnati, University of Cincinnati, Cincinnati, OH, 45221, USA
| |
Collapse
|
17
|
Guo Z, Lin L, Chen J, Zhou X, Chan HF, Chen X, Tian H, Chen M. Poly(ethylene glycol)-poly-l-glutamate complexed with polyethyleneimine−polyglycine for highly efficient gene delivery in vitro and in vivo. Biomater Sci 2018; 6:3053-3062. [DOI: 10.1039/c8bm00503f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The highly efficient gene delivery system with effective serum resistant capacity is promising for cancer therapy.
Collapse
Affiliation(s)
- Zhaopei Guo
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao 999078
- China
| | - Lin Lin
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Jie Chen
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Xingzhi Zhou
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao 999078
- China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine
- School of Biomedical Science
- The Chinese University of Hong Kong
- Hong Kong
- China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Huayu Tian
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Meiwan Chen
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Macao 999078
- China
| |
Collapse
|
18
|
Xu C, Guan X, Lin L, Wang Q, Gao B, Zhang S, Li Y, Tian H. pH-Responsive Natural Polymeric Gene Delivery Shielding System Based on Dynamic Covalent Chemistry. ACS Biomater Sci Eng 2017; 4:193-199. [PMID: 33418689 DOI: 10.1021/acsbiomaterials.7b00869] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A novel pH-responsive system based on aldehyde-bearing dextran derivatives (ODEX or FDEX) was designed to use as gene carrier shielding. Through pH sensitive Schiff base bonds between amino groups of PEI (in PEI/DNA polyplex) and aldehyde groups of dextran derivatives, PEI/DNA polyplex could be shielded and further condensed to obtain an effectively decreasing ζ-potential with smaller size. Schiff base bonds were pH-responsive, which were relatively stable in neutral environment but were deformed in slightly acidic and acidic environments. Through use of this characteristic, the PEI/DNA polyplex was effectively shielded during circulation in the body, and upon arrival at the tumor, the slightly acid pH triggered the breaking of Schiff base bonds to expose the positive PEI/DNA polyplex, which further interacted with tumor cell membranes, achieving efficient gene expression. Use of such characteristics could effectively address the high transfection efficiency versus stability dilemma of gene carriers. FDEX/PEI/DNA nanoparticles not only mediate higher cellular uptake and transfection efficiency in vitro but also effectively accumulate in tumors with gene expression in vivo higher than that of the ODEX analogues. As a result, this pH-responsive system is a promising strategy for cancer therapy.
Collapse
Affiliation(s)
- Chang Xu
- Changchun University of Science and Technology, WeiXing Road 7989, Changchun 130022, China.,Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
| | - Xiuwen Guan
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
| | - Lin Lin
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
| | - Qing Wang
- Changchun University of Science and Technology, WeiXing Road 7989, Changchun 130022, China
| | - Bo Gao
- Changchun University of Science and Technology, WeiXing Road 7989, Changchun 130022, China
| | - Shuhua Zhang
- Changchun University of Science and Technology, WeiXing Road 7989, Changchun 130022, China
| | - Yanhui Li
- Changchun University of Science and Technology, WeiXing Road 7989, Changchun 130022, China
| | - Huayu Tian
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
| |
Collapse
|
19
|
Nehate C, Moothedathu Raynold AA, Koul V. ATRP Fabricated and Short Chain Polyethylenimine Grafted Redox Sensitive Polymeric Nanoparticles for Codelivery of Anticancer Drug and siRNA in Cancer Therapy. ACS APPLIED MATERIALS & INTERFACES 2017; 9:39672-39687. [PMID: 29048878 DOI: 10.1021/acsami.7b11716] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
To overcome the limitations of conventional chemotherapy, nanoparticle-mediated combinatorial delivery of siRNA and drugs represents a new approach to overcome its associated side effects. Designing safe and efficient vehicles for their codelivery has emerged as a potential challenge in the clinical translation of these formulations. Herein, we have demonstrated a novel "two-in-one" polyplex nanosystem developed from redox sensitive, short chain polyethylenimine modified poly[(poly(ethylene)glycol methacrylate]-s-s-polycaprolactone copolymer synthesized by atom-transfer free-radical polymerization (ATRP), which can deliver doxorubicin and polo-like kinase I (plk1) siRNA, simultaneously for an enhanced chemotherapeutic effect. The nanoparticles were found to be stable at physiological buffer with and without fetal bovine serum (FBS). The developed polymeric nanosystem was found to be biocompatible and hemocompatible in vitro and in vivo at repeated dose administrations. The polymer could easily self-assemble into ∼100 nm spherical nanoparticles with enhanced doxorubicin loading (∼18%) and effective siRNA complexation at a polymer to siRNA weight ratio of 15. The doxorubicin loaded nanoparticles exhibited ∼4-fold higher drug release in endosomal pH (pH 5) containing 10 mmol of GSH compared to pH 7.4, depicting their redox-sensitive behavior. The polyplexes were capable of delivering both cargos simultaneously to cancer cells in vitro as observed by their excellent colocalization in the cytoplasm of MDA-MB-231 and HeLa cells using confocal laser microscopy. Moreover, in vitro transfection of the cells with polyplexes exhibited 50-70% knockdown of plk1-mRNA expression in both cell lines. In vivo administration of the drug loaded polyplexes to EAT tumor bearing (EAT, Ehrlich ascites tumor) Swiss albino mice showed a ∼29-fold decrease in percent tumor volume in comparison to the control group. The results highlight the therapeutic potential of the polyplexes as a combined delivery of doxorubicin and plk1-siRNA in cancer therapy.
Collapse
Affiliation(s)
- Chetan Nehate
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi , New Delhi 110016, India
- Biomedical Engineering Unit, All India Institute of Medical Sciences , New Delhi 110029, India
| | - Aji Alex Moothedathu Raynold
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi , New Delhi 110016, India
- Biomedical Engineering Unit, All India Institute of Medical Sciences , New Delhi 110029, India
| | - Veena Koul
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi , New Delhi 110016, India
- Biomedical Engineering Unit, All India Institute of Medical Sciences , New Delhi 110029, India
| |
Collapse
|
20
|
Song Z, Han Z, Lv S, Chen C, Chen L, Yin L, Cheng J. Synthetic polypeptides: from polymer design to supramolecular assembly and biomedical application. Chem Soc Rev 2017; 46:6570-6599. [DOI: 10.1039/c7cs00460e] [Citation(s) in RCA: 215] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review highlights the recent advances in the chemical design, supramolecular assembly, and biomedical application of synthetic polypeptides fromN-carboxyanhydrides.
Collapse
Affiliation(s)
- Ziyuan Song
- Department of Materials Science and Engineering
- University of Illinois at Urbana-Champaign
- Urbana
- USA
| | - Zhiyuan Han
- Department of Materials Science and Engineering
- University of Illinois at Urbana-Champaign
- Urbana
- USA
| | - Shixian Lv
- Department of Materials Science and Engineering
- University of Illinois at Urbana-Champaign
- Urbana
- USA
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices
| | - Chongyi Chen
- Department of Materials Science and Engineering
- University of Illinois at Urbana-Champaign
- Urbana
- USA
- School of Materials Science and Chemical Engineering
| | - Li Chen
- Department of Materials Science and Engineering
- University of Illinois at Urbana-Champaign
- Urbana
- USA
- Department of Chemistry
| | - Lichen Yin
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- P. R. China
| | - Jianjun Cheng
- Department of Materials Science and Engineering
- University of Illinois at Urbana-Champaign
- Urbana
- USA
| |
Collapse
|