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Mohri K, Hayashi E, Nishino M, Matsushita N, Tanishita S, Nishikawa M, Sakuma S. Polypod-like structured guanine-rich oligonucleotide aptamer as a selective and cytotoxic nanostructured DNA to cancer cells. J Drug Target 2021; 29:217-224. [PMID: 32997541 DOI: 10.1080/1061186x.2020.1830407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/10/2020] [Accepted: 09/26/2020] [Indexed: 10/23/2022]
Abstract
Guanine-rich oligonucleotide (GRO) can be developed as an effective anticancer agent owing to its high selectivity, affinity and antiproliferative activity in cancer cells. In this study, to increase the potency of GRO29A, a 29-mer GRO aptamer against nucleolin, an overexpressed protein in cancer cells, GRO29A was incorporated into three or six pods of polypod-like structured DNA (polypodna), tripodna or hexapodna, respectively. The polypod-like structured GROs, tri-G3, consisting of one tripodna and three GRO29A, or hexa-G1, hexa-G3 or hexa-G6, each of which comprises one hexapodna and one, three or six GRO29A, respectively, were designed. Tri-G3, hexa-G1 and hexa-G3 were prepared in high yield, except for hexa-G6. Polypod-like structured GROs had quadruplex structures under physiological salt conditions, and degraded at a slower rate in buffer containing serum. Cellular interaction experiments using fluorescently labelled DNA samples showed that the uptake of hexa-G3 by nucleolin-positive MCF-7 cells was more than 2-fold higher than GRO29A, and the interaction was increasingly dependent on the number of GRO29A in the structures. Hexa-G3 inhibited the proliferation of MCF-7 cells in more than 40%, but not of CHO cells. These results indicate that polypod-like structured GROs are useful DNA aptamers with high selectivity and cytotoxicity against nucleolin-positive cancer cells.
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Affiliation(s)
- Kohta Mohri
- Faculty of Pharmaceutical Sciences, Laboratory of Drug Delivery System, Setsunan University, Hirakata, Japan
- Laboratory for Molecular Delivery and Imaging Technology, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Emi Hayashi
- Faculty of Pharmaceutical Sciences, Laboratory of Drug Delivery System, Setsunan University, Hirakata, Japan
| | - Manato Nishino
- Faculty of Pharmaceutical Sciences, Laboratory of Drug Delivery System, Setsunan University, Hirakata, Japan
| | - Nao Matsushita
- Faculty of Pharmaceutical Sciences, Laboratory of Drug Delivery System, Setsunan University, Hirakata, Japan
| | - Sohei Tanishita
- Faculty of Pharmaceutical Sciences, Laboratory of Drug Delivery System, Setsunan University, Hirakata, Japan
| | - Makiya Nishikawa
- Department of Biopharmaceutics and Drug Metabolism, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
- Faculty of Pharmaceutical Sciences, Laboratory of Biopharmaceutics, Tokyo University of Science, Noda, Japan
| | - Shinji Sakuma
- Faculty of Pharmaceutical Sciences, Laboratory of Drug Delivery System, Setsunan University, Hirakata, Japan
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Tanishita S, Ukawa M, Tomono T, Yoshida Y, Tsujioka T, Miyata K, Tobita E, Uto T, Baba M, Sakuma S. Cross-Protective Abilities of Hyaluronic Acid Modified with Tetraglycine-l-octaarginine as a Mucosal Adjuvant against Infection with Heterologous Influenza Viruses. Bioconjug Chem 2019; 30:3028-3037. [PMID: 31738536 DOI: 10.1021/acs.bioconjchem.9b00644] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Mucosal vaccination, which secretion of immunoglobulin A (IgA) on the mucosa is accompanied by induction of immunoglobulin G (IgG) in the blood, is one of the most effective ways to circumvent influenza epidemics caused by incorrect prediction of epidemic viral strains or viral mutation. Secreted IgA is expected to prevent hosts from being infected with heterologous viruses because this antibody cross-reacts to strains other than those used for immunization. Our previous mouse experiments revealed that intranasal IgA with cross-reactivity was induced through nasal inoculation with inactivated whole viral particles of the H1N1 A/New Caledonia/20/99 IVR116 (NCL) strain in the presence of hyaluronic acid modified with tetraglycine-l-octaarginine. In the present study, heterologous influenza virus challenge was performed to validate a potential of the hyaluronic acid derivative as a mucosal adjuvant with cross-protective abilities. Serious weight loss was observed when mice were nasally inoculated with inactivated NCL viruses alone and subsequently exposed to mouse-adapted infectious viruses of the H1N1 A/Puerto Rico/8/34 (PR8) strain. The symptom associated with virus infection was hardly ever observed for mice inoculated with a mixture of the viral antigens and tetraglycine-l-octaarginine-linked hyaluronic acid, presumably due to high induction of IgG and IgA capable of cross-reacting to PR8 viruses. Less proliferation of PR8 viruses in those mice was also supported by an insignificant elevation of antibody levels through virus exposure. Our polysaccharide derivative enabled hosts to acquire adaptive immunity with cross-protective abilities against heterologous virus infection.
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Affiliation(s)
- Sohei Tanishita
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan
| | - Masami Ukawa
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan
| | - Takumi Tomono
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan
| | - Yuki Yoshida
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan
| | - Takumi Tsujioka
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan
| | - Kohei Miyata
- Life Science Materials Laboratory , ADEKA Company, Limited , 7-2-34, Higashiogu , Arakawa-ku, Tokyo 116-8553 , Japan
| | - Etsuo Tobita
- Life Science Materials Laboratory , ADEKA Company, Limited , 7-2-34, Higashiogu , Arakawa-ku, Tokyo 116-8553 , Japan
| | - Tomofumi Uto
- Faculty of Medicine , University of Miyazaki , Kihara 5200, Kiyotake , Miyazaki 889-1692 , Japan
| | - Masanori Baba
- Division of Antiviral Chemotherapy, Joint Research Center for Human Retrovirus Infection , Kagoshima University , 8-35-1, Sakuragaoka , Kagoshima 890-8544 , Japan
| | - Shinji Sakuma
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan
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Ukawa M, Tanishita S, Yagi H, Yoshida Y, Tomono T, Shigeno K, Tobita E, Uto T, Baba M, Sakuma S. Biodegradable Hyaluronic Acid Modified with Tetraglycine-l-octaarginine as a Safe Adjuvant for Mucosal Vaccination. Mol Pharm 2019; 16:1105-1118. [PMID: 30715891 DOI: 10.1021/acs.molpharmaceut.8b01110] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We have been investigating the potential use of polymers modified with cell-penetrating peptides as an adjuvant for mucosal vaccination and have already developed nondegradable poly( N-vinylacetamide- co-acrylic acid) (PNVA- co-AA) with which d-octaarginine, a typical cell-penetrating peptide, was grafted. Our previous murine infection experiments demonstrated that immunoglobulin G (IgG) and immunoglobulin A (IgA) were induced in systemic circulation and secreted on nasal mucosa, respectively, through 4-time nasal inoculations with a mixture of influenza viral antigens and d-octaarginine-linked PNVA- co-AA at 7-day intervals, and that immunized mice were perfectly protected from homologous virus infection. In the present study, we designed novel biodegradable polymers bearing cell-penetrating peptides from a perspective of clinical application. Hyaluronic acid whose glucuronic acid was modified with tetraglycine-l-octaarginine at a monosaccharide unit ratio of 30% was successfully developed. The hyaluronic acid derivative exhibited adjuvant activities identical to PNVA- co-AA bearing either d-octaarginine or tetraglycine-d-octaarginine under the above-mentioned inoculation schedule. We further found that there was no difference in humoral immunity between the 4-time inoculations at 7-day intervals and the 2-time inoculations at 28-day intervals. Intranasal IgA induced through the latter schedule with a smaller number of inoculations, which is clinically practical, exhibited cross-reactivity beyond the subtype of viral strains. In vitro toxicity studies demonstrated that the hyaluronic acid derivative was much less toxic than the corresponding PNVA- co-AA derivatives, and that both the polymers and their metabolites did not exhibit genotoxicity. Our results suggested that tetraglycine-l-octaarginine-linked hyaluronic acid would be a clinically valuable and safe adjuvant for mucosal vaccination.
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Affiliation(s)
- Masami Ukawa
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata , Osaka 573-0101 , Japan
| | - Sohei Tanishita
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata , Osaka 573-0101 , Japan
| | - Haruya Yagi
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata , Osaka 573-0101 , Japan
| | - Yuki Yoshida
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata , Osaka 573-0101 , Japan
| | - Takumi Tomono
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata , Osaka 573-0101 , Japan
| | - Koichi Shigeno
- Life Science Materials Laboratory , ADEKA Co. , 7-2-34, Higashiogu , Arakawa-ku , Tokyo 116-8553 , Japan
| | - Etsuo Tobita
- Life Science Materials Laboratory , ADEKA Co. , 7-2-34, Higashiogu , Arakawa-ku , Tokyo 116-8553 , Japan
| | - Tomofumi Uto
- Faculty of Medicine , University of Miyazaki , Kihara 5200, Kiyotake , Miyazaki 889-1692 , Japan
| | - Masanori Baba
- Center for Chronic Viral Diseases , Kagoshima University , 8-35-1, Sakuragaoka , Kagoshima 890-8544 , Japan
| | - Shinji Sakuma
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata , Osaka 573-0101 , Japan
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Miyata K, Ukawa M, Mohri K, Fujii K, Yamada M, Tanishita S, Higashitarumi S, Ishizaki S, Kumagai H, Ochiai K, Hiwatari KI, Tsubaki K, Shigeno K, Tobita E, Kobayashi H, Sakuma S. Biocompatible Polymers Modified with d-Octaarginine as an Absorption Enhancer for Nasal Peptide Delivery. Bioconjug Chem 2018; 29:1748-1755. [PMID: 29648441 DOI: 10.1021/acs.bioconjchem.8b00185] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Peptide and protein drugs, which are categorized as biologics, exhibit poor membrane permeability. This pharmacokinetic disadvantage has largely restricted the development of noninvasive dosage forms of biologics that deliver into systemic circulation. We have been investigating the potential use of cell-penetrating peptide-linked polymers as a novel absorption enhancer to overcome this challenge. Since our previous study revealed that biocompatible poly( N-vinylacetamide- co-acrylic acid) modified with d-octaarginine, a typical cell-penetrating peptide, enhanced in vitro permeation of biomolecules such as plasmid DNA and bovine serum albumin through cell membranes, the present study evaluated whether the polymers enhanced in vivo absorption of biologics applied on the mucosa. Mouse experiments demonstrated that d-octaarginine-linked polymers drastically enhanced nasal absorption of exendin-4, whose injection is clinically used. The mean bioavailability was 20% relative to subcutaneous administration, even though it fell short of 1% when exendin-4 alone was administered nasally. The absorption-enhancing function of the polymers was superior to that of sodium caprate and sodium N-(8-(2-hydroxybenzoyl)amino) caprylate, which have been used for humans as an absorption enhancer. In vitro experiments using several biologics with different characteristics revealed that biologics interacted with d-octaarginine-linked polymers and were taken up into cells when incubated with the polymers. The interaction and cellular uptake were enhanced as molecular weights of the biologics increased; however, their charge-dependent in vitro performance was not clearly observed. The current data suggested that biologics formulated with our polymers became an alternative to their conventional invasive parenteral formulations.
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Affiliation(s)
- Kohei Miyata
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan.,Life Science Materials Laboratory , ADEKA Co. , 7-2-34, Higashiogu , Arakawa-ku, Tokyo 116-8553 , Japan
| | - Masami Ukawa
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan
| | - Kohta Mohri
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan
| | - Kozue Fujii
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan
| | - Mako Yamada
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan
| | - Sohei Tanishita
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan
| | - Satoshi Higashitarumi
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan
| | - Seiya Ishizaki
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan
| | - Hironori Kumagai
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan.,Life Science Materials Laboratory , ADEKA Co. , 7-2-34, Higashiogu , Arakawa-ku, Tokyo 116-8553 , Japan
| | - Kyohei Ochiai
- Life Science Materials Laboratory , ADEKA Co. , 7-2-34, Higashiogu , Arakawa-ku, Tokyo 116-8553 , Japan
| | - Ken-Ichiro Hiwatari
- Life Science Materials Laboratory , ADEKA Co. , 7-2-34, Higashiogu , Arakawa-ku, Tokyo 116-8553 , Japan
| | - Kazufumi Tsubaki
- Life Science Materials Laboratory , ADEKA Co. , 7-2-34, Higashiogu , Arakawa-ku, Tokyo 116-8553 , Japan
| | - Koichi Shigeno
- Life Science Materials Laboratory , ADEKA Co. , 7-2-34, Higashiogu , Arakawa-ku, Tokyo 116-8553 , Japan
| | - Etsuo Tobita
- Life Science Materials Laboratory , ADEKA Co. , 7-2-34, Higashiogu , Arakawa-ku, Tokyo 116-8553 , Japan
| | - Hideo Kobayashi
- Pharmaceutical and Biomedical Analysis Department , DAIICHI SANKYO RD NOVARE Co., Ltd. , 1-16-13, Kitakasai , Edogawa-ku, Tokyo 134-8630 , Japan
| | - Shinji Sakuma
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata, Osaka 573-0101 , Japan
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Mohri K, Miyata K, Egawa T, Tanishita S, Endo R, Yagi H, Ukawa M, Ochiai K, Hiwatari KI, Tsubaki K, Shigeno K, Tobita E, Uto T, Baba M, Sakuma S. Effects of the Chemical Structures of Oligoarginines Conjugated to Biocompatible Polymers as a Mucosal Adjuvant on Antibody Induction in Nasal Cavities. Chem Pharm Bull (Tokyo) 2018; 66:375-381. [PMID: 29607903 DOI: 10.1248/cpb.c17-00834] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We have been investigating the potential of oligoarginine-linked polymers as an adjuvant for mucosal vaccination that induces immunoglobulin G (IgG) in systemic circulation and immunoglobulin A (IgA) secreted on the mucosa. Our latest infection experiments demonstrated that mice immunized nasally with a mixture of inactivated influenza viruses and poly(N-vinylacetamide-co-acrylic acid) (PNVA-co-AA) modified with D-octaarginine were perfectly protected from homologous virus infection. On the contrary, virus infection was observed in mice immunized with the antigen alone. This difference was presumably due to insignificant induction of secreted IgA on the nasal mucosa in the latter mice. Since it was unclear whether the current induction level was sufficient for heterologous virus infection, we evaluated the effects of the chemical structures of oligoarginines conjugated to PNVA-co-AA on induction of intranasal IgA. The number and optical activity of the arginine residues and the degree of modification with oligoarginines in the polymer backbone were listed as a factor that would influence IgA induction. Mouse experiments revealed that maximization of the modification resulted in an increase in adjuvant activities of oligoarginine-linked polymers most effectively. Glycine segments inserted between oligoarginines and the polymer backbone were a prerequisite for the maximization. The highest IgA level was observed when antigens were coadministered with diglycine-D-octaarginine-linked PNVA-co-AA.
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Affiliation(s)
- Kohta Mohri
- Faculty of Pharmaceutical Sciences, Setsunan University
| | - Kohei Miyata
- Faculty of Pharmaceutical Sciences, Setsunan University.,Life Science Materials Laboratory, ADEKA Co
| | - Tomomi Egawa
- Faculty of Pharmaceutical Sciences, Setsunan University
| | | | - Rikito Endo
- Faculty of Pharmaceutical Sciences, Setsunan University
| | - Haruya Yagi
- Faculty of Pharmaceutical Sciences, Setsunan University
| | - Masami Ukawa
- Faculty of Pharmaceutical Sciences, Setsunan University
| | | | | | | | | | | | | | - Masanori Baba
- Center for Chronic Viral Diseases, Kagoshima University
| | - Shinji Sakuma
- Faculty of Pharmaceutical Sciences, Setsunan University
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