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Ma P, He M, Lian H, Li J, Gao Y, Wu J, Men K, Men Y, Li C. Systemic and Local Administration of a Dual-siRNA Complex Efficiently Inhibits Tumor Growth and Bone Invasion in Oral Squamous Cell Carcinoma. Mol Pharm 2024; 21:661-676. [PMID: 38175819 DOI: 10.1021/acs.molpharmaceut.3c00802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Oral squamous cell carcinoma (OSCC) accounts for nearly 90% of oral and oropharyngeal cancer cases and is characterized by high mortality and poor prognosis. RNA-based gene therapies have been developed as an emerging option for cancer treatment, but it has not been widely explored in OSCC. In this work, we developed an efficient siRNA cationic micelle DOTAP-mPEG-PCL (DMP) by self-assembling the cationic lipid DOTAP and monomethoxy poly(ethylene glycol)-poly(ε-caprolactone) (mPEG-PCL) polymer. We tested the characteristics and transformation efficiency of this micelle and combined DMP with siRNA targeting STAT3 and TGF-β to evaluate the antitumor effect and bone invasion interfering in vitro and in vivo. The average size of the DMP was 28.27 ± 1.62 nm with an average zeta potential of 54.60 ± 0.29 mV. The DMP/siRNA complex showed high delivery efficiency, with rates of 97.47 ± 0.42% for HSC-3. In vitro, the DMP/siSTAT3 complex exhibited an obvious cell growth inhibition effect detected by MTT assay (an average cell viability of 25.1%) and clonogenic assay (an average inhibition rate of 51.9%). Besides, the supernatant from HSC-3 transfected by DMP/siTGF-β complexes was found to interfere with osteoclast differentiation in vitro. Irrespective of local or systemic administration, DMP/siSTAT3+siTGF-β showed antitumor effects and bone invasion inhibition in the OSCC mice mandibular invasion model according to tumor volume assays and Micro-CT scanning. The complex constructed by DMP cationic micelles and siSTAT3+siTGF-β represents a potential RNA-based gene therapy delivery system for OSCC.
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Affiliation(s)
- Pingchuan Ma
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan China
| | - Mingxia He
- Joint National Laboratory for Antibody Drug Engineering, School of Medicine, Henan University, 475004 Kaifeng, China
| | - Haosen Lian
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan China
| | - Jingmei Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu 610041, Sichuan Province China
| | - Yan Gao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu 610041, Sichuan Province China
| | - Jieping Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu 610041, Sichuan Province China
| | - Ke Men
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu 610041, Sichuan Province China
| | - Yi Men
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan China
| | - Chunjie Li
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan China
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Ward DM, Shodeinde AB, Peppas NA. Innovations in Biomaterial Design toward Successful RNA Interference Therapy for Cancer Treatment. Adv Healthc Mater 2021; 10:e2100350. [PMID: 33973393 PMCID: PMC8273125 DOI: 10.1002/adhm.202100350] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/27/2021] [Indexed: 12/11/2022]
Abstract
Gene regulation using RNA interference (RNAi) therapy has been developed as one of the frontiers in cancer treatment. The ability to tailor the expression of genes by delivering synthetic oligonucleotides to tumor cells has transformed the way scientists think about treating cancer. However, its clinical application has been limited due to the need to deliver synthetic RNAi oligonucleotides efficiently and effectively to target cells. Advances in nanotechnology and biomaterials have begun to address the limitations to RNAi therapeutic delivery, increasing the likelihood of RNAi therapeutics for cancer treatment in clinical settings. Herein, innovations in the design of nanocarriers for the delivery of oligonucleotides for successful RNAi therapy are discussed.
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Affiliation(s)
- Deidra M Ward
- McKetta Department of Chemical Engineering, 200 E. Dean Keeton St. Stop C0400, Austin, TX, 78712, USA
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, 107 W Dean Keeton Street Stop C0800, Austin, TX, 78712, USA
| | - Aaliyah B Shodeinde
- McKetta Department of Chemical Engineering, 200 E. Dean Keeton St. Stop C0400, Austin, TX, 78712, USA
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, 107 W Dean Keeton Street Stop C0800, Austin, TX, 78712, USA
| | - Nicholas A Peppas
- McKetta Department of Chemical Engineering, 200 E. Dean Keeton St. Stop C0400, Austin, TX, 78712, USA
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, 107 W Dean Keeton Street Stop C0800, Austin, TX, 78712, USA
- Department of Biomedical Engineering, The University of Texas at Austin, 107 W Dean Keeton Street Stop C0800, Austin, TX, 78712, USA
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, 2409 University Ave. Stop A1900, Austin, TX, 78712, USA
- Department of Pediatrics and Department of Surgery and Perioperative Care, Dell Medical School, 1601 Trinity St., Bldg. B, Stop Z0800, Austin, TX, 78712, USA
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Hattori Y, Saito H, Oku T, Ozaki KI. Effects of sterol derivatives in cationic liposomes on biodistribution and gene-knockdown in the lungs of mice systemically injected with siRNA lipoplexes. Mol Med Rep 2021; 24:598. [PMID: 34165169 PMCID: PMC8240178 DOI: 10.3892/mmr.2021.12237] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 06/04/2021] [Indexed: 01/17/2023] Open
Abstract
Cationic liposomes can be intravenously injected to deliver short interfering (si)RNAs into the lungs. The present study investigated the effects of sterol derivatives in systemically injected siRNA/cationic liposome complexes (siRNA lipoplexes) on gene-knockdown in the lungs of mice. Cationic liposomes composed of 1,2-dioleoyl-3-trimethylammonium-propane or dimethyldioctadecylammonium bromide (DDAB) were prepared as a cationic lipid, with sterol derivatives such as cholesterol (Chol), β-sitosterol, ergosterol (Ergo) or stigmasterol as a neutral helper lipid. Transfected liposomal formulations composed of DDAB/Chol or DDAB/Ergo did not suppress the expression of the luciferase gene in LLC-Luc and Colon 26-Luc cells in vitro, whereas other formulations induced moderate gene-silencing. The systemic injection of siRNA lipoplexes formulated with Chol or Ergo into mice resulted in abundant siRNA accumulation in the lungs. In comparison, systemically injected DDAB/Chol or DDAB/Ergo lipoplexes of Tie2 siRNA effectively increased the suppression of the Tie2 mRNA expression in the lungs of mice. These findings indicated that DDAB/Chol and DDAB/Ergo liposomes could function as vectors for siRNA delivery to the lungs.
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Affiliation(s)
- Yoshiyuki Hattori
- Department of Molecular Pharmaceutics, Hoshi University, Tokyo 142-8501, Japan
| | - Hiromu Saito
- Department of Molecular Pharmaceutics, Hoshi University, Tokyo 142-8501, Japan
| | - Teruaki Oku
- Department of Microbiology, Hoshi University, Tokyo 142-8501, Japan
| | - Kei-Ichi Ozaki
- Department of Molecular Pathology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyotanabe, Kyoto 610-0395, Japan
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Hattori Y, Tamaki K, Sakasai S, Ozaki KI, Onishi H. Effects of PEG anchors in PEGylated siRNA lipoplexes on in vitro gene‑silencing effects and siRNA biodistribution in mice. Mol Med Rep 2020; 22:4183-4196. [PMID: 33000194 PMCID: PMC7533518 DOI: 10.3892/mmr.2020.11525] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 08/03/2020] [Indexed: 12/13/2022] Open
Abstract
Polyethylene glycol (PEG)‑modifications (PEGylations) of cationic liposome/small interfering RNA complexes (siRNA lipoplexes) can enhance their systemic stability. The present study determined the effects of PEG anchors in PEGylated siRNA lipoplexes on in vitro gene‑silencing effects and siRNA biodistribution after intravenous injection. Three types of dialkyl or trialkyl cationic lipids were used in the current study for the preparation of cationic liposomes. Additionally, various PEGylated siRNA lipoplexes that contained PEG‑1,2‑distearoyl‑sn‑-glycero‑-3‑phosphoethanolamine (DSPE), PEG‑1,2‑distearoyl‑rac‑glycero‑3‑-methylpolyoxyethylene (DSG), PEG‑cholesterol (PEG‑Chol) and PEG‑chondroitin sulfate conjugate (PEG‑CS) were prepared. The results revealed that PEGylation of siRNA lipoplexes with PEG‑DSPE strongly decreased gene‑silencing effects in cells. In contrast, those with PEG‑DSG, PEG‑Chol and PEG‑CS did not largely decrease gene-silencing effects. However, regardless of the PEG‑derivative type, PEGylation of siRNA lipoplexes decreased their agglutination with erythrocytes. Furthermore, intravenous injection of PEGylated siRNA lipoplexes markedly decreased the accumulation of siRNA in the lungs, regardless of the type of PEG‑derivative. However, non‑PEGylated siRNA lipoplexes accumulated mainly in the lungs regardless of the siRNA lipoplex cationic lipid type. The results indicated that PEGylation of siRNA lipoplexes with PEG‑DSG, PEG‑Chol and PEG‑CS may improve systemic stability without losing transfection activity by PEGylation.
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Affiliation(s)
- Yoshiyuki Hattori
- Department of Molecular Pharmaceutics, Hoshi University, Tokyo 142‑8501, Japan
| | - Kyoko Tamaki
- Department of Drug Delivery Research, Hoshi University, Tokyo 142‑8501, Japan
| | - Sho Sakasai
- Department of Molecular Pharmaceutics, Hoshi University, Tokyo 142‑8501, Japan
| | - Kei-Ichi Ozaki
- Department of Molecular Pathology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyotanabe, Kyoto 610‑0395, Japan
| | - Hiraku Onishi
- Department of Drug Delivery Research, Hoshi University, Tokyo 142‑8501, Japan
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Khan AR, Yang X, Du X, Yang H, Liu Y, Khan AQ, Zhai G. Chondroitin sulfate derived theranostic and therapeutic nanocarriers for tumor-targeted drug delivery. Carbohydr Polym 2020; 233:115837. [PMID: 32059890 DOI: 10.1016/j.carbpol.2020.115837] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/22/2019] [Accepted: 01/06/2020] [Indexed: 12/11/2022]
Abstract
The standard chemotherapy is facing the challenges of lack of cancer selectivity and development of drug resistance. Currently, with the application of nanotechnology, the rationally designed nanocarriers of chondroitin sulfate (CS) have been fabricated and their unique features of low toxicity, biocompatibility, and active and passive targeting made them drug delivery vehicles of the choice for cancer therapy. The hydrophilic and anionic CS could be incorporated as a building block into- or decorated on the surface of nanoformulations. Micellar nanoparticles (NPs) self-assembled from amphiphilic CS-drug conjugates and CS-polymer conjugates, polyelectrolyte complexes (PECs) and nanogels of CS have been widely implicated in cancer directed therapy. The surface modulation of organic, inorganic, lipid and metallic NPs with CS promotes the receptor-mediated internalization of NPs to the tumor cells. The potential contribution of CS and CS-proteoglycans (CSPGs) in the pathogenesis of various cancer types, and CS nanocarriers in immunotherapy, radiotherapy, sonodynamic therapy (SDT) and photodynamic therapy (PDT) of cancer are summarized in this review paper.
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Affiliation(s)
- Abdur Rauf Khan
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, PR China
| | - Xiaoye Yang
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, PR China
| | - Xiyou Du
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, PR China
| | - Haotong Yang
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, PR China
| | - Yuanxiu Liu
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, PR China
| | - Abdul Qayyum Khan
- Pakistan Council of Scientific and Industrial Research, Lahore, Pakistan
| | - Guangxi Zhai
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, PR China.
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Hattori Y, Tamaki K, Ozaki KI, Kawano K, Onishi H. Optimized combination of cationic lipids and neutral helper lipids in cationic liposomes for siRNA delivery into the lung by intravenous injection of siRNA lipoplexes. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.06.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Effect of Cationic Lipid Type in Folate-PEG-Modified Cationic Liposomes on Folate Receptor-Mediated siRNA Transfection in Tumor Cells. Pharmaceutics 2019; 11:pharmaceutics11040181. [PMID: 30991703 PMCID: PMC6523911 DOI: 10.3390/pharmaceutics11040181] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/06/2019] [Accepted: 04/12/2019] [Indexed: 12/04/2022] Open
Abstract
In this study, we examined the effect of cationic lipid type in folate (FA)-polyethylene glycol (PEG)-modified cationic liposomes on gene-silencing effects in tumor cells using cationic liposomes/siRNA complexes (siRNA lipoplexes). We used three types of cationic cholesterol derivatives, cholesteryl (3-((2-hydroxyethyl)amino)propyl)carbamate hydroiodide (HAPC-Chol), N-(2-(2-hydroxyethylamino)ethyl)cholesteryl-3-carboxamide (OH-Chol), and cholesteryl (2-((2-hydroxyethyl)amino)ethyl)carbamate (OH-C-Chol), and we prepared three types of FA-PEG-modified siRNA lipoplexes. The modification of cationic liposomes with 1–2 mol % PEG-lipid abolished the gene-silencing effect in human nasopharyngeal tumor KB cells, which overexpress the FA receptor (FR). In contrast, FA-PEG-modification of cationic liposomes restored gene-silencing activity regardless of the cationic lipid type in cationic liposomes. However, the optimal amount of PEG-lipid and FA-PEG-lipid in cationic liposomes for selective gene silencing and cellular uptake were different among the three types of cationic liposomes. Furthermore, in vitro transfection of polo-like kinase 1 (PLK1) siRNA by FA-PEG-modified liposomes exhibited strong cytotoxicity in KB cells, compared with PEG-modified liposomes; however, in in vivo therapy, intratumoral injection of PEG-modified PLK1 siRNA lipoplexes inhibited tumor growth of KB xenografts, as well as that of FA-PEG-modified PLK1 siRNA lipoplexes. From these results, the optimal formulation of PEG- and FA-PEG-modified liposomes for FR-selective gene silencing might be different between in vitro and in vivo transfection.
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Effect of cationic lipid type in cationic liposomes for siRNA delivery into the liver by sequential injection of chondroitin sulfate and cationic lipoplex. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.09.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Hattori Y, Nakamura M, Takeuchi N, Tamaki K, Shimizu S, Yoshiike Y, Taguchi M, Ohno H, Ozaki KI, Onishi H. Effect of cationic lipid in cationic liposomes on siRNA delivery into the lung by intravenous injection of cationic lipoplex. J Drug Target 2018; 27:217-227. [PMID: 30024300 DOI: 10.1080/1061186x.2018.1502775] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cationic liposomes composed of dialkyl cationic lipid such as 1,2-dioleoyl-3-trimethylammonium-propane (DOTAP) can efficiently deliver siRNA to the lungs following the intravenous injection of cationic liposome/siRNA complexes (lipoplexes). In this study, we examined the effect of cationic lipid of cationic liposomes on siRNA delivery to the lungs after intravenous injection. We used six kinds of cationic cholesterol derivatives and 11 kinds of dialkyl or trialkyl cationic lipids as cationic lipids, and prepared 17 kinds of cationic liposomes composed of a cationic lipid and 1,2-dioleoyl-L-α-glycero-3-phosphatidylethanolamine (DOPE) for evaluation of siRNA biodistribution and in vivo gene silencing effects. Among cationic liposomes, those composed of N-hexadecyl-N,N-dimethylhexadecan-1-aminium bromide (DC-1-16), N,N-dimethyl-N-octadecyloctadecan-1-aminium bromide (DC-1-18), 2-((1,5-bis(octadecyloxy)-1,5-dioxopentan-2-yl)amino)-N,N,N-trimethyl-2-oxoethan-1-aminium chloride (DC-3-18D), 11-((1,3-bis(dodecanoyloxy)-2-((dodecanoyloxy)methyl)propan-2-yl)amino)-N,N,N-trimethyl-11-oxoundecan-1-aminium bromide (TC-1-12), or cholesteryl (3-((2-hydroxyethyl)amino)propyl)carbamate hydroiodide (HAPC-Chol) with DOPE exhibited high accumulation of siRNA in the lung and significant suppression of Tie2 mRNA expression after the intravenous injection of cationic lipoplexes with Tie2 siRNA. Furthermore, DC-1-16/DOPE and DC-1-18/DOPE lipoplexes with protein kinase N3 (PKN3) siRNA could suppress the tumour growth when intravenously injected into mice with lung LLC metastasis. These findings indicate that the siRNA biodistribution and in vivo knockdown efficiency after the intravenous injection of cationic lipoplexes were strongly affected by the type of cationic lipid of cationic liposomes.
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Affiliation(s)
- Yoshiyuki Hattori
- a Department of Drug Delivery Research , Hoshi University , Tokyo , Japan
| | - Mari Nakamura
- a Department of Drug Delivery Research , Hoshi University , Tokyo , Japan
| | - Nozomi Takeuchi
- a Department of Drug Delivery Research , Hoshi University , Tokyo , Japan
| | - Kyoko Tamaki
- a Department of Drug Delivery Research , Hoshi University , Tokyo , Japan
| | - Satono Shimizu
- a Department of Drug Delivery Research , Hoshi University , Tokyo , Japan
| | - Yuki Yoshiike
- a Department of Drug Delivery Research , Hoshi University , Tokyo , Japan
| | - Masamitsu Taguchi
- b Graduate School of Pharmaceutical Sciences , Kyoto University , Kyoto , Japan
| | - Hiroaki Ohno
- b Graduate School of Pharmaceutical Sciences , Kyoto University , Kyoto , Japan
| | - Kei-Ichi Ozaki
- c Education and Research Center for Pharmaceutical Sciences, Osaka University of Pharmaceutical Sciences , Takatsuki , Japan
| | - Hiraku Onishi
- a Department of Drug Delivery Research , Hoshi University , Tokyo , Japan
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Hattori Y, Nakamura A, Hanaya S, Miyanabe Y, Yoshiike Y, Kikuchi T, Ozaki KI, Onishi H. Effect of chondroitin sulfate on siRNA biodistribution and gene silencing effect in mice after injection of siRNA lipoplexes. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.08.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Hattori Y, Kikuchi T, Ozaki KI, Onishi H. Evaluation of in vitro and in vivo therapeutic antitumor efficacy of transduction of polo-like kinase 1 and heat shock transcription factor 1 small interfering RNA. Exp Ther Med 2017; 14:4300-4306. [PMID: 29067111 PMCID: PMC5647550 DOI: 10.3892/etm.2017.5060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 07/27/2017] [Indexed: 02/06/2023] Open
Abstract
Mitotic progression is regulated by the phosphorylation of heat shock transcription factor 1 (HSF1) by polo-like kinase 1 (PLK1); however, this interaction is often deregulated in tumors. High expression levels of PLK1 and HSF1 have been observed in various types of human cancer. In the present study, it was investigated whether small interfering (si)RNA against PLK1 or HSF1 could suppress tumor growth in vitro and in vivo. In vitro transfection of PLK1 and HSF1 siRNA into PKL1- and HSF1-positive human breast tumor MDA-MB-231 and human cervical carcinoma HeLa cells inhibited cell growth via suppression of PLK1 and HSF1 mRNA expression, respectively. However, the transfection of PLK1 or HSF1 siRNA did not significantly affect the cytotoxicity of doxorubicin in HeLa cells. Furthermore, injection of PKL1 or HSF1 siRNA into mice with liver HeLa metastasis suppressed tumor growth. From these findings, PLK1 and HSF1 may be considered to be promising targets for antitumor therapy.
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Affiliation(s)
- Yoshiyuki Hattori
- Department of Drug Delivery Research, Hoshi University, Tokyo 142-8501, Japan
| | - Takuto Kikuchi
- Department of Drug Delivery Research, Hoshi University, Tokyo 142-8501, Japan
| | - Kei-Ichi Ozaki
- Education and Research Center for Fundamental Pharmaceutical Sciences, Osaka University of Pharmaceutical Sciences, Osaka 569-1094, Japan
| | - Hiraku Onishi
- Department of Drug Delivery Research, Hoshi University, Tokyo 142-8501, Japan
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Hattori Y, Kikuchi T, Nakamura M, Ozaki KI, Onishi H. Therapeutic effects of protein kinase N3 small interfering RNA and doxorubicin combination therapy on liver and lung metastases. Oncol Lett 2017; 14:5157-5166. [PMID: 29098022 PMCID: PMC5652245 DOI: 10.3892/ol.2017.6830] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Accepted: 03/14/2017] [Indexed: 01/29/2023] Open
Abstract
It has been reported that suppression of protein kinase N3 (PKN3) expression in vascular and lymphatic endothelial cells results in the inhibition of tumor progression and lymph node metastasis formation. The present study investigated whether combination therapy of small interfering RNA (siRNA) against PKN3 and doxorubicin (DXR) could increase therapeutic efficacy against liver and lung metastases. In vitro transfection of PKN3 siRNA into PKN3-positive MDA-MB-231, LLC, and Colon 26 cells and PKN3-negative MCF-7 cells did not inhibit cell growth and did not increase sensitivity to DXR. However, following in vivo treatment, PKN3 siRNA suppressed the growth of liver MDA-MB-231 and lung LLC and MCF-7 metastases, although combination therapy with DXR did not increase the therapeutic efficacy. By contrast, in liver MCF-7 metastases, PKN3 siRNA or DXR alone did not exhibit significant inhibition of tumor growth, but their combination significantly improved therapeutic efficacy. Treatment of liver MDA-MB-231 metastases with PKN3 siRNA induced a change in vasculature structure via suppression of PKN3 mRNA expression. PKN3 siRNA may induce antitumor effects in lung and liver metastases by suppression of PKN3 expression in stroma cells, such as endothelial cells. From these findings, PKN3 siRNA alone or in combination with DXR may reduce the tumor growth of liver and lung metastases regardless of PKN3 expression in tumor cells.
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Affiliation(s)
- Yoshiyuki Hattori
- Department of Drug Delivery Research, Hoshi University, Tokyo 142-8501, Japan
| | - Takuto Kikuchi
- Department of Drug Delivery Research, Hoshi University, Tokyo 142-8501, Japan
| | - Mari Nakamura
- Department of Drug Delivery Research, Hoshi University, Tokyo 142-8501, Japan
| | - Kei-Ichi Ozaki
- Education and Research Center for Fundamental Pharmaceutical Sciences, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka 569-1094, Japan
| | - Hiraku Onishi
- Department of Drug Delivery Research, Hoshi University, Tokyo 142-8501, Japan
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Hattori Y, Yoshiike Y, Kikuchi T, Yamamoto N, Ozaki KI, Onishi H. Evaluation of the injection route of an anionic polymer for small interfering RNA delivery into the liver by sequential injection of anionic polymer and cationic lipoplex of small interfering RNA. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2016.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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