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ASAI D, KANG JH, KATAYAMA Y. Old but Still Useful [γ-<sup>32</sup>P]ATP —Development of Peptide Substrates for Protein Kinases by <sup>32</sup>P-Based Enzyme Activity Assay—. BUNSEKI KAGAKU 2022. [DOI: 10.2116/bunsekikagaku.71.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Daisuke ASAI
- Laboratory of Microbiology, Showa Pharmaceutical University
| | - Jeong-Hun KANG
- Division of Biopharmaceutics and Pharmacokinetics, National Cerebral and Cardiovascular Center Research Institute
| | - Yoshiki KATAYAMA
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University
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2
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Kim CW, Toita R, Kang JH, Mori T, Kishimura A, Katayama Y. Protein Kinase C α-Responsive Gene Carrier for Cancer-Specific Transgene Expression and Cancer Therapy. ACS Biomater Sci Eng 2021; 7:2530-2537. [PMID: 33890761 DOI: 10.1021/acsbiomaterials.1c00213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The presence of intracellular signal transduction and its abnormal activities in many cancers has potential for medical and pharmaceutical applications. We recently developed a protein kinase C α (PKCα)-responsive gene carrier for cancer-specific gene delivery. Here, we demonstrate an in-depth analysis of cellular signal-responsive gene carrier and the impact of its selective transgene expression in response to malfunctioning intracellular signaling in cancer cells. We prepared a novel gene carrier consisting of a linear polyethylenimine (LPEI) main chain grafted to a cationic PKCα-specific substrate (FKKQGSFAKKK-NH2). The LPEI-peptide conjugate formed a nanosized polyplex with pDNA and mediated efficient cellular uptake and endosomal escape. This polyplex also led to successful transgene expression which responded to the target PKCα in various cancer cells and exhibited a 10-100-fold higher efficiency compared to the control group. In xenograft tumor models, the LPEI-peptide conjugate promoted transgene expression showing a clear-cut response to PKCα. Furthermore, when a plasmid containing a therapeutic gene, human caspase-8 (pcDNA-hcasp8), was used, the LPEI-peptide conjugate had significant cancer-suppressive effects and extended animal survival. Collectively, these results reveal that our method has great potential for cancer-specific gene delivery and therapy.
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Affiliation(s)
- Chan Woo Kim
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Riki Toita
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan.,AIST-Osaka University Advanced Photonics and Biosensing Open Innovation Laboratory, AIST, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Jeong-Hun Kang
- Division of Biopharmaceutics and Pharmacokinetics, National Cerebral and Cardiovascular Center Research Institute, 6-1 Shinmachi, Kishibe, Suita, Osaka 564-8565, Japan
| | - Takeshi Mori
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Akihiro Kishimura
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,International Research Center for Molecular Systems, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshiki Katayama
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,International Research Center for Molecular Systems, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Center for Advanced Medical Innovation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.,Department of Biomedical Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan
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3
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Sun H, Chang L, Yan Y, Wang L. Hepatitis B virus pre-S region: Clinical implications and applications. Rev Med Virol 2020; 31. [PMID: 33314434 DOI: 10.1002/rmv.2201] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 11/22/2020] [Accepted: 11/29/2020] [Indexed: 12/12/2022]
Abstract
Hepatitis B virus (HBV) infection is a major threat to global public health, which can result in many acute and chronic liver diseases. HBV, a member of the family Hepadnaviridae, is a small enveloped DNA virus containing a circular genome of 3.2 kb. Located upstream of the S-open-reading frame of the HBV genome is the pre-S region, which is vital to the viral life cycle. The pre-S region has high variability and many mutations in the pre-S region are associated with several liver diseases, such as fulminant hepatitis (FH), liver cirrhosis (LC), and hepatocellular carcinoma (HCC). In addition, the pre-S region has been applied in the development of several pre-S-based materials and systems to prevent or treat HBV infection. In conclusion, the pre-S region plays an essential role in the occurrence, diagnosis, and treatment of HBV-related liver diseases, which may provide a novel perspective for the study of HBV infection and relevant diseases.
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Affiliation(s)
- Huizhen Sun
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, PR China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, PR China
- Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, PR China
| | - Le Chang
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, PR China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, PR China
| | - Ying Yan
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, PR China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, PR China
| | - Lunan Wang
- National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, PR China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, PR China
- Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, PR China
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4
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Chen Z, Lv Z, Sun Y, Chi Z, Qing G. Recent advancements in polyethyleneimine-based materials and their biomedical, biotechnology, and biomaterial applications. J Mater Chem B 2020; 8:2951-2973. [DOI: 10.1039/c9tb02271f] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Precise-synthesis strategies and integration approaches of bioinspired PEI-based systems, and their biomedical, biotechnology and biomaterial applications.
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Affiliation(s)
- Zhonghui Chen
- Guangdong Provincial Public Laboratory of Analysis and Testing Technology
- China National Analytical Center
- Guangzhou 510070
- China
- Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films
| | - Ziyu Lv
- Institute of Microscale Optoelectronics
- Shenzhen University
- Shenzhen 518000
- China
| | - Yifeng Sun
- Guangdong Provincial Public Laboratory of Analysis and Testing Technology
- China National Analytical Center
- Guangzhou 510070
- China
| | - Zhenguo Chi
- Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films
- State Key Laboratory of OEMT
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Guangyan Qing
- Key Laboratory of Separation Science for Analytical Chemistry
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116000
- China
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5
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Tsuchiya A, Kang JH, Mori T, Naritomi Y, Kushio S, Niidome T, Tachibana K, Takahashi Y, Negishi Y, Oda Y, Suzuki R, Maruyama K, Katayama Y. Efficient delivery of signal-responsive gene carriers for disease-specific gene expression via bubble liposomes and sonoporation. Colloids Surf B Biointerfaces 2017; 160:60-64. [DOI: 10.1016/j.colsurfb.2017.09.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 09/04/2017] [Accepted: 09/08/2017] [Indexed: 01/06/2023]
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6
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Katayama Y. Peptide-Grafted Polymers as Artificial Converter of Cellular Signals. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20160307] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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7
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Ahmed M. Peptides, polypeptides and peptide–polymer hybrids as nucleic acid carriers. Biomater Sci 2017; 5:2188-2211. [DOI: 10.1039/c7bm00584a] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Peptide, polypeptide and polymer–peptide hybrid based nucleic acid therapeutics (NAT).
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Affiliation(s)
- Marya Ahmed
- Department of Chemistry & School of Sustainable Design and Engineering
- University of Prince Edward Island
- Charlottetown
- Canada
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8
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Anti-obesity and anti-inflammatory effects of macrophage-targeted interleukin-10-conjugated liposomes in obese mice. Biomaterials 2016; 110:81-88. [DOI: 10.1016/j.biomaterials.2016.09.018] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 09/21/2016] [Accepted: 09/28/2016] [Indexed: 02/06/2023]
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9
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10
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Toita R, Kawano T, Kang JH, Murata M. Applications of human hepatitis B virus preS domain in bio- and nanotechnology. World J Gastroenterol 2015; 21:7400-7411. [PMID: 26139986 PMCID: PMC4481435 DOI: 10.3748/wjg.v21.i24.7400] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 02/24/2015] [Accepted: 05/04/2015] [Indexed: 02/06/2023] Open
Abstract
Human hepatitis B virus (HBV) is a member of the family Hepadnaviridae, and causes acute and chronic infections of the liver. The hepatitis B surface antigen (HBsAg) contains the large (L), middle (M), and small (S) surface proteins. The L protein consists of the S protein, preS1, and preS2. In HBsAg, the preS domain (preS1 + preS2) plays a key role in the infection of hepatocytic cells by HBV and has several immunogenic epitopes. Based on these characteristics of preS, several preS-based diagnostic and therapeutic materials and systems have been developed. PreS1-specific monoclonal antibodies (e.g., MA18/7 and KR127) can be used to inhibit HBV infection. A myristoylated preS1 peptide (amino acids 2-48) also inhibits the attachment of HBV to HepaRG cells, primary human hepatocytes, and primary tupaia hepatocytes. Antibodies and antigens related to the components of HBsAg, preS (preS1 + preS2), or preS1 can be available as diagnostic markers of acute and chronic HBV infections. Hepatocyte-targeting delivery systems for therapeutic molecules (drugs, genes, or proteins) are very important for increasing the clinical efficacy of these molecules and in reducing their adverse effects on other organs. The selective delivery of diagnostic molecules to target hepatocytic cells can also improve the efficiency of diagnosis. In addition to the full-length HBV vector, preS (preS1 + preS2), preS1, and preS1-derived fragments can be useful in hepatocyte-specific targeting. In this review, we discuss the literature concerning the applications of the HBV preS domain in bio- and nanotechnology.
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11
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Li K, Sato H, Kim CW, Nakamura Y, Zhao GX, Funamoto D, Nobori T, Kishimura A, Mori T, Katayama Y. Tumor accumulation of protein kinase-responsive gene carrier/DNA polyplex stabilized by alkanethiol for intravenous injection. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2015; 26:657-68. [PMID: 26011738 DOI: 10.1080/09205063.2015.1054922] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We synthesized polymeric gene carriers consisting of poly-L-lysine (PLL) main chain modified both with substrate peptide for protein kinase Cα (PKCα) and alkanethiol (pentadecanethiol). Due to the grafted substrate peptide, the polyplex prepared from these carriers is expected to show gene expression triggered by the phosphorylation of the peptide by intracellular PKCα. The modified alkanethiol on the main chain stabilized the polyplex both via disulfide crosslinking and hydrophobic interaction. The polyplex found to show gene expression in vitro when the alkanethiol content in the main chain was enough low (4-mol%-modification of PLL's ε-amine group) to minimize cytotoxic effect. Even though the content of alkanethiol is low, the polyplex had significant stability in a model serum solution and showed longer blood circulation in vivo. The polyplex clearly accumulated in tumor after intravenous injection.
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Affiliation(s)
- Kai Li
- a Graduate School of Systems Life Sciences , Kyushu University , 744 Motooka, Nishi-ku, Fukuoka , 819-0395 , Japan
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12
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Funamoto D, Asai D, Kim CW, Nakamura Y, Lee EK, Nobori T, Niidome T, Mori T, Katayama Y. Tandemly Repeated Peptide for Cancer-specific Gene Carrier Prepared by Native Chemical Ligation. CHEM LETT 2015. [DOI: 10.1246/cl.141121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Daiki Funamoto
- Graduate School of System Life Sciences, Kyushu University
| | - Daisuke Asai
- Department of Microbiology, St. Marianna University School of Medicine
| | - Chan Woo Kim
- Graduate School of System Life Sciences, Kyushu University
| | - Yuta Nakamura
- Graduate School of System Life Sciences, Kyushu University
| | - Eun Kyung Lee
- Graduate School of System Life Sciences, Kyushu University
| | | | - Takuro Niidome
- Graduate School of System Life Sciences, Kyushu University
| | - Takeshi Mori
- Graduate School of System Life Sciences, Kyushu University
- Center for Future Chemistry, Kyushu University
| | - Yoshiki Katayama
- Graduate School of System Life Sciences, Kyushu University
- Center for Future Chemistry, Kyushu University
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13
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Toita R, Kang JH, Kim CW, Shiosaki S, Mori T, Niidome T, Katayama Y. Effect of peptide content on the regulation of transgene expression by protein kinase Cα-responsive linear polyethylenimine-peptide conjugates. Colloids Surf B Biointerfaces 2014; 123:123-9. [PMID: 25270730 DOI: 10.1016/j.colsurfb.2014.09.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 08/27/2014] [Accepted: 09/01/2014] [Indexed: 01/04/2023]
Abstract
We examined a series of linear polyethylenimine (LPEI)-based nanocarriers that activate transgene expression in response to cancer-specific protein kinase Cα (PKCα). Eight types of LPEI-peptide conjugate differing in peptide content and number were synthesized using click chemistry. The conjugates could form polyplexes with pDNA through electrostatic interaction, but the degree of pDNA condensation, sizes, and surface charges of the resulting polyplexes depended on the pendant-peptide content and number. None of the polyplexes showed significant cytotoxicity toward human hepatoma cells (HepG2). Furthermore, pendant peptide content and number markedly affected transgene activation in response to PKCα. To achieve an all-or-none response to PKCα, we determined the optimum peptide content and number in LPEI-peptide conjugates as ≈6 mol% and ≈40 peptides/conjugate.
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Affiliation(s)
- Riki Toita
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Jeong-Hun Kang
- Division of Biopharmaceutics and Pharmacokinetics, Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, 5-7-1 Fujishirodai, Suita, Osaka 565-8565, Japan
| | - Chan Woo Kim
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shujiro Shiosaki
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takeshi Mori
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takuro Niidome
- Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Yoshiki Katayama
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; International Research Center for Molecular Systems, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Center for Advanced Medical Innovation, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
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14
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Bouillon C, Paolantoni D, Rote JC, Bessin Y, Peterson LW, Dumy P, Ulrich S. Degradable Hybrid Materials Based on Cationic Acylhydrazone Dynamic Covalent Polymers Promote DNA Complexation through Multivalent Interactions. Chemistry 2014; 20:14705-14. [DOI: 10.1002/chem.201403695] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Indexed: 12/28/2022]
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15
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Asayama S, Matsuda K, Negishi Y, Kawakami H. Intracellular co-delivery of zinc ions and plasmid DNA for enhancing gene transfection activity. Metallomics 2014; 6:82-7. [PMID: 24084762 DOI: 10.1039/c3mt00226h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Zinc ions, methylated poly(1-vinylimidazole) (PVIm-Me) and plasmid DNA (pDNA) have formed ternary complexes for gene delivery. The resulting Zn-PVIm-Me-pDNA complexes have delivered both Zn(2+) ions and pDNA inside cells, leading to the nuclear translocation of the pDNA. By use of the pDNA containing a nuclear protein, NF-κB, binding sequence, the intracellular co-delivery of Zn(2+) ions and pDNA has enhanced gene expression. These results suggest that the intracellular Zn(2+) ions delivered by Zn-PVIm-Me-pDNA complexes activated the NF-κB, enhancing the nuclear translocation of the pDNA. In conclusion, it has been demonstrated that the Zn-PVIm-Me-pDNA complex is capable of enhancing the gene transfection activity by a synergic effect of the PVIm-Me and the co-delivered intracellular Zn(2+) ions.
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Affiliation(s)
- Shoichiro Asayama
- Department of Applied Chemistry, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan.
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16
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Abstract
Protein kinase C (PKC) is a family of phospholipid-dependent serine/threonine kinases, which can be further classified into three PKC isozymes subfamilies: conventional or classic, novel or nonclassic, and atypical. PKC isozymes are known to be involved in cell proliferation, survival, invasion, migration, apoptosis, angiogenesis, and drug resistance. Because of their key roles in cell signaling, PKC isozymes also have the potential to be promising therapeutic targets for several diseases, such as cardiovascular diseases, immune and inflammatory diseases, neurological diseases, metabolic disorders, and multiple types of cancer. This review primarily focuses on the activation, mechanism, and function of PKC isozymes during cancer development and progression.
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17
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Mo R, Jiang T, Gu Z. Enhanced anticancer efficacy by ATP-mediated liposomal drug delivery. Angew Chem Int Ed Engl 2014; 53:5815-20. [PMID: 24764317 DOI: 10.1002/anie.201400268] [Citation(s) in RCA: 146] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Indexed: 11/12/2022]
Abstract
A liposome-based co-delivery system composed of a fusogenic liposome encapsulating ATP-responsive elements with chemotherapeutics and a liposome containing ATP was developed for ATP-mediated drug release triggered by liposomal fusion. The fusogenic liposome had a protein-DNA complex core containing an ATP-responsive DNA scaffold with doxorubicin (DOX) and could release DOX through a conformational change from the duplex to the aptamer/ATP complex in the presence of ATP. A cell-penetrating peptide-modified fusogenic liposomal membrane was coated on the core, which had an acid-triggered fusogenic potential with the ATP-loaded liposomes or endosomes/lysosomes. Directly delivering extrinsic liposomal ATP promoted the drug release from the fusogenic liposome in the acidic intracellular compartments upon a pH-sensitive membrane fusion and anticancer efficacy was enhanced both in vitro and in vivo.
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Affiliation(s)
- Ran Mo
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695 (USA); Molecular Pharmaceutics Division, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 (USA).
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18
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Mo R, Jiang T, Gu Z. Enhanced Anticancer Efficacy by ATP-Mediated Liposomal Drug Delivery. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201400268] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Toita R, Murata M, Abe K, Narahara S, Piao JS, Kang JH, Hashizume M. A nanocarrier based on a genetically engineered protein cage to deliver doxorubicin to human hepatocellular carcinoma cells. Chem Commun (Camb) 2014; 49:7442-4. [PMID: 23860596 DOI: 10.1039/c3cc44508a] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report the preparation of genetically engineered protein cages (HspG41C-SP94), taken up selectively by human hepatocellular carcinoma (HCC) cells. An engineered protein cage-doxorubicin (DOX) conjugate was as cytotoxic as free DOX against HCC cells but much less cytotoxic against normal hepatocytes.
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Affiliation(s)
- Riki Toita
- Department of Advanced Medical Initiatives, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Fukuoka 812-8582, Japan
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20
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Zhao GX, Tanaka H, Kim CW, Li K, Funamoto D, Nobori T, Nakamura Y, Niidome T, Kishimura A, Mori T, Katayama Y. Histidinylated poly-L-lysine-based vectors for cancer-specific gene expression via enhancing the endosomal escape. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2014; 25:519-34. [PMID: 24460548 DOI: 10.1080/09205063.2013.879562] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In this work, we synthesized a series of poly-L-lysine (PLL)-based polymers for gene delivery, by modifying the PLL with both cationic peptide and histidine. The peptide moieties serve as cationic centers for polyplex formation, and also as substrates for protein kinase Cα (PKCα), which is specifically activated in many types of cancer cells, to achieve cancer-specific gene expression. The histidine groups serve as buffering moieties to increase the ability of the plasmid DNA (pDNA)-polymer complex (polyplex) to escape the endosome and thus to promote expression of the pDNA in the transfected cells. The facile synthesis of the polymers proceeded by modifying the PLL with side-group-protected peptide and protected histidine, followed by deprotection of the functional groups. The synthesized polymers showed significant buffering capacity over the neutral to acidic pH range and showed less cytotoxicity in vitro compared with histidine-unmodified polymers. The polyplexes successfully showed PKCα-responsive gene expression immediately after their introduction into cancer cells and the gene expression continued for at least 24 h. These PLL-based carriers thus show promise for cancer-targeted gene therapy.
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Affiliation(s)
- Guo Xi Zhao
- a Graduate School of Systems Life Sciences , Kyushu University , 744 Motooka, Nishi-ku, Fukuoka 819-0395 , Japan
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Kushio S, Tsuchiya A, Nakamura Y, Nobori T, Kim CW, Zhao GX, Funamoto T, Lee EK, Niidome T, Mori T, Katayama Y. CANCER-SPECIFIC GENE CARRIERS RESPONDING TO CANCER MICROENVIRONMENT: ACIDOSIS AND HYPER-ACTIVATED PROTEIN KINASES. BIOMEDICAL ENGINEERING: APPLICATIONS, BASIS AND COMMUNICATIONS 2013. [DOI: 10.4015/s101623721340005x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Protein kinase (PK)-responsive gene carriers modified with polyethylene glycol (PEG) chains using an acid-labile linker were developed. These carriers were obtained by modifying the PEG chains and substrate peptides for the PKs (PKA or PKCα) on the branched polyethyleneimine main chain. Polyplexes formed from these carriers and plasmid DNA (pDNA) were stably dispersed under neutral pH medium. The polyplexes were also taken up by cells on the release of the PEG chains under the slightly acidic extracellular pH associated with cancer cells. The polyplexes taken up by cells resulted in gene expression when the substrate peptides were phosphorylated by the intracellular PKs to release pDNA from the polyplexes. These novel gene carriers are expected to be promising for cancer-specific gene therapy via intravenous administration.
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Affiliation(s)
- Satoshi Kushio
- Department of Applied Chemistry, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Akira Tsuchiya
- Department of Applied Chemistry, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yuta Nakamura
- Department of Applied Chemistry, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takanobu Nobori
- Department of Applied Chemistry, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Chan Woo Kim
- Department of Applied Chemistry, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Guo Xi Zhao
- Department of Applied Chemistry, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Taiki Funamoto
- Department of Applied Chemistry, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Eun Kyung Lee
- Department of Applied Chemistry, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takuro Niidome
- Department of Applied Chemistry, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Future Chemistry, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takeshi Mori
- Department of Applied Chemistry, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Future Chemistry, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshiki Katayama
- Department of Applied Chemistry, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Future Chemistry, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
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22
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Nakamura Y, Kim CW, Tsuchiya A, Kushio S, Nobori T, Li K, Lee EK, Zhao GX, Funamoto D, Niidome T, Mori T, Katayama Y. Branched polyethylenimine-based PKCα-responsive gene carriers. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2013; 24:1858-68. [PMID: 24073611 DOI: 10.1080/09205063.2013.807459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
We examined in vitro performance of the branched polyethylenimine (bPEI)-based gene carriers which respond to cancer-specific activation of protein kinase Cα (PKCα) to express plasmid DNA. The carriers were synthesized straightforward by using amide bond formation between a peptide terminal carboxyl and a primary amine group of bPEI. To examine the effect of the peptide contents in the carrier, we prepared several carriers with various peptide contents. The obtained polymers form polyplexes with tighter condensation of plasmid DNA than our previous gene carriers. After internalization of the polyplexes via endocytosis, the polyplexes effectively escaped from the endosome into cytosol. Then, the polyplexes showed a clear-cut response to PKCα to release plasmid DNA for gene expression. We determined the optimum contents of the peptides in carriers as 5 mol% to achieve the clear-cut response to PKCα.
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Affiliation(s)
- Yuta Nakamura
- a Graduate School of Systems Life Sciences, Kyushu University , 744 Motooka , Nishi-ku , Fukuoka , 819-0395 , Japan
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23
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Kim CW, Toita R, Kang JH, Li K, Lee EK, Zhao GX, Funamoto D, Nobori T, Nakamura Y, Mori T, Niidome T, Katayama Y. Stabilization of cancer-specific gene carrier via hydrophobic interaction for a clear-cut response to cancer signaling. J Control Release 2013; 170:469-76. [DOI: 10.1016/j.jconrel.2013.06.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 05/09/2013] [Accepted: 06/03/2013] [Indexed: 12/14/2022]
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24
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Toita R, Murata M, Abe K, Narahara S, Piao JS, Kang JH, Ohuchida K, Hashizume M. Biological evaluation of protein nanocapsules containing doxorubicin. Int J Nanomedicine 2013; 8:1989-99. [PMID: 23717042 PMCID: PMC3662465 DOI: 10.2147/ijn.s40239] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
This study describes the applications of a naturally occurring small heat shock protein (Hsp) that forms a cage-like structure to act as a drug carrier. Mutant Hsp cages (HspG41C) were expressed in Escherichia coli by substituting glycine 41 located inside the cage with a cysteine residue to allow conjugation with a fluorophore or a drug. The HspG41C cages were taken up by various cancer cell lines, mainly through clathrin-mediated endocytosis. The cages were detected in acidic organelles (endosomes/lysosomes) for at least 48 hours, but none were detected in the mitochondria or nuclei. To generate HspG41C cages carrying doxorubicin (DOX), an anticancer agent, the HspG41C cages and DOX were conjugated using acid-labile hydrazone linkers. The release of DOX from HspG41C cages was accelerated at pH 5.0, but was negligible at pH 7.2. The cytotoxic effects of HspG41C–DOX against Suit-2 and HepG2 cells were slightly weaker than those of free DOX, but the effects were almost identical in Huh-7 cells. Considering the relatively low release of DOX from HspG41C–DOX, HspG41C–DOX exhibited comparable activity towards HepG2 and Suit-2 cells and slightly stronger cytotoxicity towards Huh-7 cells than free DOX. Hsp cages offer good biocompatibility, are easy to prepare, and are easy to modify; these properties facilitate their use as nanoplatforms in drug delivery systems and in other biomedical applications.
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Affiliation(s)
- Riki Toita
- Innovation Center for Medical Redox Navigation, Department of Advanced Medical Initiatives, Kyushu University, Fukuoka, Japan
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25
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Such GK, Gunawan ST, Liang K, Caruso F. Design of degradable click delivery systems. Macromol Rapid Commun 2013; 34:894-902. [PMID: 23649708 DOI: 10.1002/marc.201300093] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2012] [Revised: 03/22/2013] [Indexed: 12/14/2022]
Abstract
Click chemistry has had a significant impact in the field of materials science over the last 10 years, as it has enabled the design of new hybrid building blocks, leading to multifunctional and responsive materials. One key application for such materials is in the biomedical field, such as gene or drug delivery. However, to meet the functional requirements of such applications, tailored degradability of these materials under biological conditions is critical. There has been an increasing interest in combining click chemistry techniques with a range of degradable or responsive building blocks as well as investigating new or milder chemistries to design click delivery systems that are capable of physiologically relevant degradation. This Feature Article will cover some of the different approaches to synthesize degradable click delivery systems and their investigation for therapeutic release.
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Affiliation(s)
- Georgina K Such
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville 3010, Australia
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