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Imaizumi N, Gondaira S, Kamioka M, Sugiura T, Eguchi A, Nishi K, Fujiki J, Iwano H, Higuchi H. Innate immune response of bovine mammary epithelial cells in Mycoplasma bovis mastitis using an in vitro model of bovine mammary gland infection. J Vet Med Sci 2024:24-0097. [PMID: 38710622 DOI: 10.1292/jvms.24-0097] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024] Open
Abstract
Mycoplasma bovis mastitisis highly contagious and disrupts lactation, posing a significant threat to the dairy industry. While the mammary gland's defence mechanism involves epithelial cells and mononuclear cells (MNC), their interaction with M. bovis remains incompletely understood. In this study, we assessed the immunological reactivity of bovine mammary epithelial cells (bMEC) to M. bovis through co-culture with MNC. Upon co-culture with MNC, the mRNA expression levels of interleukin (IL)-1β,IL-6, IL-8 and tumor necrosis factor (TNF)-α in bMEC stimulated by M. bovis showed a significant increase compared to monoculture. Additionally, when stimulated with M. bovis, the culture supernatant exhibited significantly higher concentrations of IL-6 and interferon (IFN)-γ, while IL-1β concentration tended to be higher in co-culture with MNC than in monoculture. Furthermore, the mRNA expression levels of toll-like receptor (TLR) 2 in bMEC stimulated with M. bovis tended to increase, and TLR4 significantly increased when co-cultured with MNC compared to monocultures. However, the surface expression levels in bMEC did not exhibit significant changes between co-culture and monoculture. Overall, our research indicates that the inflammatory response of bMEC is increased during co-culture with MNC, suggesting that the interaction between bMEC and MNC in the mammary gland amplifies the immune response to M. bovis in cows affected by M. bovis mastitis.
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Affiliation(s)
- Noriko Imaizumi
- Animal Health Unit, Graduate school of Veterinary Medicine, Veterinary Medicine Doctoral Course, Rakuno Gakuen University
| | - Satoshi Gondaira
- Animal Health Unit, Graduate school of Veterinary Medicine, Veterinary Medicine Doctoral Course, Rakuno Gakuen University
- Animal Health Unit, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University
| | - Marin Kamioka
- Animal Health Unit, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University
| | - Tomochika Sugiura
- Theriogenology Unit, School of Veterinary Medicine, Rakuno Gakuen University
| | - Ayako Eguchi
- Animal Health Unit, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University
| | - Koji Nishi
- Animal Health Unit, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University
- Monbetsu Veterinary Clinic, Hokkaido Agricultural Mutual Aid Association
| | - Jumpei Fujiki
- Veterinary Biochemistry Unit, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University
| | - Hidetomo Iwano
- Veterinary Biochemistry Unit, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University
| | - Hidetoshi Higuchi
- Animal Health Unit, Graduate school of Veterinary Medicine, Veterinary Medicine Doctoral Course, Rakuno Gakuen University
- Animal Health Unit, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University
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Commey KL, Enaka A, Nakamura R, Yamamoto A, Tsukigawa K, Nishi K, Iohara D, Hirayama F, Otagiri M, Yamasaki K. Development of α-Cyclodextrin-Based Orally Disintegrating Tablets for 4-Phenylbutyrate. Pharmaceutics 2024; 16:82. [PMID: 38258093 PMCID: PMC10818935 DOI: 10.3390/pharmaceutics16010082] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
Despite major improvements brought about by the introduction of taste-masked formulations of 4-phenylbutyrate (PB), poor compliance remains a significant drawback to treatment for some pediatric and dysphagic patients with urea cycle disorders (UCDs). This study reports on the development of a cyclodextrin (CD)-based orally disintegrating tablet (ODT) formulation for PB as an alternative to existing formulations. This is based on previous reports of the PB taste-masking potential of CDs and the suitability of ODTs for improving compliance in pediatric and dysphagic populations. In preliminary studies, the interactions of PB with α and βCD in the solid state were characterized using X-ray diffraction, scanning electron microscopy, dissolution, and accelerated stability studies. Based on these studies, lyophilized PB-CD solid systems were formulated into ODTs after wet granulation. Evaluation of the ODTs showed that they had adequate physical characteristics, including hardness and friability and good storage stability. Notably, the developed αCD-based ODT for PB had a disintegration time of 28 s and achieved a slightly acidic and agreeable pH (≈5.5) in solution, which is suitable for effective PB-CD complexation and taste masking. The developed formulation could be helpful as an alternative to existing PB formulations, especially for pediatric and dysphagic UCD patients.
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Affiliation(s)
- Kindness L. Commey
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Airi Enaka
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
| | - Ryota Nakamura
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
| | - Asami Yamamoto
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
| | - Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Daisuke Iohara
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Fumitoshi Hirayama
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.E.); (R.N.); (A.Y.); (K.T.); (K.N.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
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Yamasaki K, Tokuno M, Tsukigawa K, Nagatsuka Y, Nishi K, Otagiri M, Sato Y. Possible Involvement of Protein Binding Inhibition in Changes in Dexmedetomidine Concentration in Extracorporeal Circuits during Midazolam Use. Biol Pharm Bull 2024; 47:389-393. [PMID: 38325827 DOI: 10.1248/bpb.b23-00659] [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] [Indexed: 02/09/2024]
Abstract
It was recently reported that the dexmedetomidine concentration within the extracorporeal circuit decreases with co-administration of midazolam. In this study, we investigated whether displacement of dexmedetomidine by midazolam from the binding site of major plasma proteins, human serum albumin (HSA) and α1-acid glycoprotein (AAG), would increase levels of free dexmedetomidine that could be adsorbed to the circuit. Equilibrium dialysis experiments indicated that dexmedetomidine binds to a single site on both HSA and AAG with four times greater affinity than midazolam. Midazolam-mediated inhibition of the binding of dexmedetomidine to HSA and AAG was also examined. The binding of dexmedetomidine to these proteins decreased in the presence of midazolam. Competitive binding experiments suggested that the inhibition of binding by midazolam was due to competitive displacement at site II of HSA and due to non-competitive displacement at the site of AAG. Thus, our present data indicate that free dexmedetomidine displaced by midazolam from site II of HSA or from AAG is adsorbed onto extracorporeal circuits, resulting in a change in the dexmedetomidine concentration within the circuit.
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Affiliation(s)
- Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University
- DDS Research Institute, Faculty of Pharmaceutical Sciences, Sojo University
| | | | - Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University
- DDS Research Institute, Faculty of Pharmaceutical Sciences, Sojo University
| | - Yuka Nagatsuka
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University
- DDS Research Institute, Faculty of Pharmaceutical Sciences, Sojo University
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University
- DDS Research Institute, Faculty of Pharmaceutical Sciences, Sojo University
| | - Yuhki Sato
- Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University
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Hasegawa T, Tsukigawa K, Commey K, Sakuragi M, Imoto S, Taguchi K, Nishi K, Otagiri M, Yamasaki K. Preparation and in Vitro Characterization of Fatty-Acid Modified Pirarubicin Nanosuspensions Stabilized by Albumin. Chem Pharm Bull (Tokyo) 2024; 72:21-27. [PMID: 38171901 DOI: 10.1248/cpb.c23-00701] [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] [Indexed: 01/05/2024]
Abstract
Pirarubicin (THP) shows more rapid intracellular uptake, more effective antitumor activity, and less cardiac toxicity, compared to doxorubicin. However, THP is distributed to both tumor and normal tissues indiscriminately. This study aimed to develop a nanosuspension to deliver THP to tumor tissues more efficiently. Fatty-acid-modified THPs (FA-THPs; octanoic acid, dodecanoic acid, palmitic acid-THPs) were synthesized to increase the hydrophobicity of THP. Nanosuspensions of these FA-THPs were then prepared using an antisolvent precipitation technique. Among the FA-THPs, the most efficiently drug-loaded nanosuspension was obtained from palmitic acid-THP (pal-THP) using an aqueous antisolvent containing bovine serum albumin as a stabilizer. The pal-THP nanoparticles in the nanosuspension were confirmed to be of optimal size (100-125 nm) for delivery to tumor tissues using dynamic light scattering and transmission electron microscopy. The pal-THP nanosuspension showed cytotoxicity in colon 26 cells. The nanosuspension was shown to disintegrate in the presence of surfactants such as lecithin, liberating pal-THP, which was converted to free THP in acidic media. It is therefore proposed that pal-THP nanoparticles that reach tumor cells after intravenous administration would exert antitumor effect by liberating pal-THP (i.e., disintegration of nanoparticles by the interaction with cell membrane), followed by the release of free THP in the acidic milieu of tumor cells. These findings indicate that FA-THP nanosuspensions, particularly pal-THP nanosuspension, hold promise as a candidate for cancer treatment. However, further in vivo studies are necessary.
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Affiliation(s)
| | - Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University
- DDS Research Institute, Sojo University
| | | | | | - Shuhei Imoto
- Faculty of Pharmaceutical Sciences, Sojo University
- DDS Research Institute, Sojo University
| | | | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University
- DDS Research Institute, Sojo University
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University
- DDS Research Institute, Sojo University
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University
- DDS Research Institute, Sojo University
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5
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Commey KL, Nakatake A, Enaka A, Nakamura R, Nishi K, Tsukigawa K, Ikeda H, Yamaguchi K, Iohara D, Hirayama F, Yamasaki K, Otagiri M. Study of the Structural Chemistry of the Inclusion Complexation of 4-Phenylbutyrate and Related Compounds with Cyclodextrins in Solution: Differences in Inclusion Mode with Cavity Size Dependency. Int J Mol Sci 2023; 24:15091. [PMID: 37894771 PMCID: PMC10606765 DOI: 10.3390/ijms242015091] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 09/19/2023] [Revised: 10/05/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
4-phenylbutyrate (PB) and structurally related compounds hold promise for treating many diseases, including cancers. However, pharmaceutical limitations, such as an unpleasant taste or poor aqueous solubility, impede their evaluation and clinical use. This study explores cyclodextrin (CD) complexation as a strategy to address these limitations. The structural chemistry of the CD complexes of these compounds was analyzed using phase solubility, nuclear magnetic resonance (NMR) spectroscopic techniques, and molecular modeling to inform the choice of CD for such application. The study revealed that PB and its shorter-chain derivative form 1:1 αCD complexes, while the longer-chain derivatives form 1:2 (guest:host) complexes. αCD includes the alkyl chain of the shorter-chain compounds, depositing the phenyl ring around its secondary rim, whereas two αCD molecules sandwich the phenyl ring in a secondary-to-secondary rim orientation for the longer-chain derivatives. βCD includes each compound to form 1:1 complexes, with their alkyl chains bent to varying degrees within the CD cavity. γCD includes two molecules of each compound to form 2:1 complexes, with both parallel and antiparallel orientations plausible. The study found that αCD is more suitable for overcoming the pharmaceutical drawbacks of PB and its shorter-chain derivative, while βCD is better for the longer-chain derivatives.
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Affiliation(s)
- Kindness L. Commey
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.N.); (A.E.); (R.N.); (K.N.); (K.T.); (K.Y.); (D.I.); (F.H.)
| | - Akari Nakatake
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.N.); (A.E.); (R.N.); (K.N.); (K.T.); (K.Y.); (D.I.); (F.H.)
| | - Airi Enaka
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.N.); (A.E.); (R.N.); (K.N.); (K.T.); (K.Y.); (D.I.); (F.H.)
| | - Ryota Nakamura
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.N.); (A.E.); (R.N.); (K.N.); (K.T.); (K.Y.); (D.I.); (F.H.)
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.N.); (A.E.); (R.N.); (K.N.); (K.T.); (K.Y.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.N.); (A.E.); (R.N.); (K.N.); (K.T.); (K.Y.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Hirohito Ikeda
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1 Jonan-ku, Fukuoka 814-0180, Japan;
| | - Koki Yamaguchi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.N.); (A.E.); (R.N.); (K.N.); (K.T.); (K.Y.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Daisuke Iohara
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.N.); (A.E.); (R.N.); (K.N.); (K.T.); (K.Y.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Fumitoshi Hirayama
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.N.); (A.E.); (R.N.); (K.N.); (K.T.); (K.Y.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.N.); (A.E.); (R.N.); (K.N.); (K.T.); (K.Y.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan; (K.L.C.); (A.N.); (A.E.); (R.N.); (K.N.); (K.T.); (K.Y.); (D.I.); (F.H.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
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Yasuda K, Maeda H, Kinoshita R, Minayoshi Y, Mizuta Y, Nakamura Y, Imoto S, Nishi K, Yamasaki K, Sakuragi M, Nakamura T, Ikeda-Imafuku M, Iwao Y, Ishima Y, Ishida T, Iwakiri Y, Otagiri M, Watanabe H, Maruyama T. Encapsulation of an Antioxidant in Redox-Sensitive Self-Assembled Albumin Nanoparticles for the Treatment of Hepatitis. ACS Nano 2023; 17:16668-16681. [PMID: 37579503 DOI: 10.1021/acsnano.3c02877] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Hepatitis is an inflammation of the liver caused by the inadequate elimination of reactive oxygen species (ROS) derived from Kupffer cells. Edaravone is clinically used as an antioxidant but shows poor liver distribution. Herein, we report on the design of a Kupffer cell-oriented nanoantioxidant based on a disulfide cross-linked albumin nanoparticle containing encapsulated edaravone (EeNA) as a therapeutic for the treatment of hepatitis. Since the edaravone is bound to albumin, this results in a soluble and stable form of edaravone in water. Exchanging the intramolecular disulfide bonds to intermolecular disulfide bridges of albumin molecules allowed the preparation of a redox responsive albumin nanoparticle that is stable in the blood circulation but can release drugs into cells. Consequently, EeNA was fabricated by the nanoscale self-assembly of edaravone and albumin nanoparticles without the additives that are contained in commercially available edaravone preparations. EeNA retained its nanostructure under serum conditions, but the encapsulated edaravone was released efficiently under intracellular reducing conditions in macrophages. The EeNA was largely distributed in the liver and subsequently internalized into Kupffer cells within 60 min after injection in a concanavalin-A-induced hepatitis mouse. The survival rate of the hepatitis mice was significantly improved by EeNA due to the suppression of liver necrosis and oxidative stress by scavenging excessive ROS. Moreover, even through the postadministration, EeNA showed an excellent hepatoprotective action as well. In conclusion, EeNA has the potential for use as a nanotherapeutic against various types of hepatitis because of its Kupffer cell targeting ability and redox characteristics.
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Affiliation(s)
- Kengo Yasuda
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1, Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Hitoshi Maeda
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1, Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Ryo Kinoshita
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1, Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Yuki Minayoshi
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1, Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Yuki Mizuta
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1, Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Yuka Nakamura
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1, Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Shuhei Imoto
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Mina Sakuragi
- Faculty of Engineering, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Teruya Nakamura
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1, Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Mayumi Ikeda-Imafuku
- School of Pharmaceutical Sciences, Wakayama Medical University, 25-1 Shichiban-Cho, Wakayama 640-8156, Japan
| | - Yasunori Iwao
- School of Pharmaceutical Sciences, Wakayama Medical University, 25-1 Shichiban-Cho, Wakayama 640-8156, Japan
| | - Yu Ishima
- Institute of Biomedical Sciences, Tokushima University, 1-78-1, Sho-machi, Tokushima 770-8505, Japan
| | - Tatsuhiro Ishida
- Institute of Biomedical Sciences, Tokushima University, 1-78-1, Sho-machi, Tokushima 770-8505, Japan
| | - Yasuko Iwakiri
- Section of Digestive Diseases, Yale University School of Medicine, New Haven, Connecticut 06510, United States
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Hiroshi Watanabe
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1, Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Toru Maruyama
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1, Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
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Nishi K, Okada J, Iwasaki T, Gondaira S, Higuchi H. Characteristics of Mycoplasma bovis, Mycoplasma arginini, and Mycoplasma californicum on immunological response of bovine synovial cells. Vet Immunol Immunopathol 2023; 260:110608. [PMID: 37182306 DOI: 10.1016/j.vetimm.2023.110608] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 03/02/2023] [Accepted: 05/09/2023] [Indexed: 05/16/2023]
Abstract
Mycoplasma arthritis in calves caused by M. bovis exhibits joint swelling, lameness, and immobility. In contrast to M. bovis, M. arginini, and M. californicum which were similarly isolated from the affected joints, only induced mild inflammation. The changes in pathogenesis that depended on species, however, remained unknown. This investigation aims to examine the characteristics of immune responses to M. bovis, M. arginini, and M. californicum in synovial cells. Intracellular M. bovis was detected by gentamicin assay, but M. arginini and M. californicum were not detected. M. bovis-infected synovial cells were encouraged to proliferate and had their apoptosis suppressed. We suggest that M. bovis invaded and inhibited apoptosis of synovial to evade host immunity, which led to long term survival in joints. M. bovis infection significantly increased IL-6 mRNA expression compared to control, although M. arginini and M. californicum infection were comparable to control. We suggest that M. arginini and M. californicum have low abilities to induce inflammation in joints and therefore do not cause severe pathology. Our findings are the first to show the variations in synovial cell immune responses to M. bovis, M. arginini, and M. californicum, which are thought to be related to the pathogenicity of arthritis.
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Affiliation(s)
- Koji Nishi
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan; Monbetsu Veterinary Clinic, Hokkaido Agricultural Mutual Aid Association, Monbetsu, Hokkaido, Japan
| | - Julia Okada
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Tomohito Iwasaki
- Department of Food Science and Human Wellness, College of Agriculture, Food and Environment Science, Rakuno Gakuen University, Hokkaido, Japan
| | - Satoshi Gondaira
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan.
| | - Hidetoshi Higuchi
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan.
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8
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Nishi K. [Elucidation of Drug Transport Mechanism by Serum Protein and Development for Pancreatic Cancer Treatment]. YAKUGAKU ZASSHI 2023; 143:205-210. [PMID: 36858548 DOI: 10.1248/yakushi.22-00173] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
Human serum albumin (HSA) and α1-acid glycoprotein (AGP) are the major drug-binding proteins in the blood and regulate the tissue transfer of bound drugs. We succeeded in clarifying the three-dimensional structure of AGP for the first time in the world from X-ray crystal structure analysis. Using a site-directed mutagenesis method by constructing yeast expression systems as well as the three-dimensional structure, we elucidated the properties of drug binding sites of AGP. We also found that structural change due to the interaction between AGP and cell membranes causes the release of bound drugs and reported an "AGP-mediated drug transport process." Pancreatic cancer has an extremely low response rate to anticancer drugs compared to other cancers and is resistant to starvation of nutrients including fatty acids. We clarified that glutamine metabolism is involved in this tolerance. Furthermore, aiming at efficient drug delivery and effective treatment for pancreatic cancer, we focused on nitric oxide (NO) which increases pancreatic blood flow and has a cell-killing effect on tumors and surrounding stromal tissues. We successfully synthesized nitrated phenylbutyrate (NPB), which binds to HSA and has an antitumor effect in vitro and vivo. The binding of NPB to HSA is considered to be useful for delivery to tumors through the enhanced permeability and retention (EPR) effect and HSA receptors.
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Affiliation(s)
- Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University.,Yokohama University of Pharmacy
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9
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Commey K, Nakatake A, Enaka A, Nishi K, Tsukigawa K, Yamaguchi K, Ikeda H, Iohara D, Hirayama F, Otagiri M, Yamasaki K. Study of the inclusion complexes formed between 4-phenylbutyrate and α-, β- and γ-cyclodextrin in solution and evaluation on their taste-masking properties. J Pharm Pharmacol 2023; 75:236-244. [PMID: 36548517 DOI: 10.1093/jpp/rgac090] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 11/11/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVES 4-Phenylbutyrate (PB), which is used in the management of urea cycle disorders, has an unpleasant taste leading to poor patient compliance. Existing PB formulations though helpful, have some limitations in their use. This study reports on attempts to mask this unpleasant taste by complexing PB with cyclodextrins (CDs) to improve patient compliance. METHODS α, β and γCD were used as CDs. Phase solubility studies, circular dichroism, 1H-NMR spectroscopy, including ROESY, and molecular modelling were used to investigate and characterize the PB-CD interactions in solution. The taste-masking effect of the CDs was evaluated using in vitro taste sensor measurements. KEY FINDINGS PB interacts with α, β and γCD in solution to form 1:1, 1:1 and 1:2 CD: PB inclusion complexes, respectively, with stability constants in the order αCD > βCD > γCD. Taste evaluation revealed that the CDs significantly mask the taste of PB through the formation of the inclusion complexes. Notably, αCD masked the bitter taste of PB to 30% of the initial taste at a 1:1 molar ratio. CONCLUSION αCD significantly masks the unpleasant taste of PB in solution and can be used to formulate PB to address the limitations of existing formulations and improve patient compliance and quality of life.
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Affiliation(s)
- Kindness Commey
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi-ku, Kumamoto, Japan
| | - Akari Nakatake
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi-ku, Kumamoto, Japan
| | - Airi Enaka
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi-ku, Kumamoto, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi-ku, Kumamoto, Japan.,DDS Research Institute, Sojo University, Nishi-ku, Kumamoto, Japan
| | - Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi-ku, Kumamoto, Japan.,DDS Research Institute, Sojo University, Nishi-ku, Kumamoto, Japan
| | - Koki Yamaguchi
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi-ku, Kumamoto, Japan.,DDS Research Institute, Sojo University, Nishi-ku, Kumamoto, Japan
| | - Hirohito Ikeda
- Faculty of Pharmaceutical Sciences, Fukuoka University, Jonan-ku, Fukuoka, Japan
| | - Daisuke Iohara
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi-ku, Kumamoto, Japan.,DDS Research Institute, Sojo University, Nishi-ku, Kumamoto, Japan
| | - Fumitoshi Hirayama
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi-ku, Kumamoto, Japan.,DDS Research Institute, Sojo University, Nishi-ku, Kumamoto, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi-ku, Kumamoto, Japan.,DDS Research Institute, Sojo University, Nishi-ku, Kumamoto, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi-ku, Kumamoto, Japan.,DDS Research Institute, Sojo University, Nishi-ku, Kumamoto, Japan
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10
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Yamasaki K, Teshima H, Yukizawa R, Kuyama K, Tsukigawa K, Nishi K, Otagiri M, Kawai A. Structural Basis of the Change in the Interaction Between Mycophenolic Acid and Subdomain IIA of Human Serum Albumin During Renal Failure. J Med Chem 2023; 66:951-961. [PMID: 36538495 DOI: 10.1021/acs.jmedchem.2c01790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 12/24/2022]
Abstract
Mycophenolic acid (MP) is an active metabolite of mycophenolate mofetil, a widely used immunosuppressive drug. MP normally exhibits high plasma protein binding (97-99%), but its binding rate is decreased in patients with renal insufficiency. This decreased protein binding is thought to be associated with leukopenia, a side effect of MP. In this study, we characterized the change in protein binding of MP in renal failure patients. Our findings indicate that MP binds strongly to subdomain IIA of human serum albumin. X-ray crystallographic data indicated that the isobenzofuran group of MP forms a stacking interaction with Trp214, and the carboxyl group of MP is located at a position that allows the formation of hydrogen bonds with Tyr150, His242, or Arg257. Due to the specific binding of MP to subdomain IIA, MP is thought to be displaced by uremic toxin (3-carboxy-4-methyl-5-propyl-2-furan-propionic acid) and fatty acids (oleate or myristate) that can bind to subdomain IIA, resulting in the decreased plasma protein binding of MP in renal failure.
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Affiliation(s)
- Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto860-0082, Japan
- DDS Research Institute, Sojo University, Kumamoto860-0082, Japan
| | - Honoka Teshima
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto860-0082, Japan
| | - Reina Yukizawa
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto860-0082, Japan
| | - Koki Kuyama
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto860-0082, Japan
| | - Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto860-0082, Japan
- DDS Research Institute, Sojo University, Kumamoto860-0082, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto860-0082, Japan
- DDS Research Institute, Sojo University, Kumamoto860-0082, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto860-0082, Japan
- DDS Research Institute, Sojo University, Kumamoto860-0082, Japan
| | - Akito Kawai
- Department of Microbiology, Fujita Health University School of Medicine, Toyoake, Aichi470-1192, Japan
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11
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Beppu T, Nishi K, Imoto S, Araki W, Setoguchi I, Ueda A, Suetsugi N, Ishima Y, Ikeda T, Otagiri M, Yamasaki K. Novel nitric oxide donor, nitrated phenylbutyrate, induces cell death of human pancreatic cancer cells and suppresses tumor growth of cancer xenografts. Oncol Rep 2022; 48:178. [PMID: 36004467 DOI: 10.3892/or.2022.8393] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 07/26/2022] [Indexed: 11/06/2022] Open
Abstract
Pancreatic cancer has a low response rate to chemotherapy due to the low drug transferability caused by the low blood flow around the tumor. In the present study, focusing on nitric oxide (NO) for its vasodilatory and antitumor effects, a novel NO donor, a nitrated form of phenylbutyrate (NPB) was synthesized and the antitumor effect on human pancreatic cancer cells (AsPC1 and BxPC3) and xenografts was examined. Using Annexin V, NPB was confirmed to induce cell death against AsPC1 and BxPC3 in a time‑ and concentration‑dependent manner. In NPB‑exposed cells, DAF‑FM DA (a probe to detect intracellular NO) derived fluorescence was observed. Release of nitrite and nitrate from NPB in aqueous solution was very gradual until even 72 h after dissolution. Phenylbutyrate (PB) and hydroxy PB in which the nitro group of NPB was replaced with a hydroxyl group did not have the cell death‑inducing effect as observed in NPB. These results suggest that the effect of NPB was dependent on NO release form NPB. Apoptosis inhibitor, Z‑VAD FMK, had no effect on the cell death‑inducing effect of NPB, and NPB did not show significant activation of caspase‑3/7. In addition, NPB significantly decreased cellular ATP levels, suggesting that necrosis is involved in the effect of NPB. NPB also accumulated cells specifically at the S phase of the cell cycle. A single dose of NPB (10 mg/kg) into mice with established BxPC3 xenografts significantly suppressed tumor growth for at least 7 weeks without apparent toxicity. The findings of the present study indicate that NPB has potential as a novel therapeutic agent for NO‑based therapy of pancreatic cancer.
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Affiliation(s)
- Takuro Beppu
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi‑ku, Kumamoto 860‑0082, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi‑ku, Kumamoto 860‑0082, Japan
| | - Shuhei Imoto
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi‑ku, Kumamoto 860‑0082, Japan
| | - Waka Araki
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi‑ku, Kumamoto 860‑0082, Japan
| | - Itaru Setoguchi
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi‑ku, Kumamoto 860‑0082, Japan
| | - Ayaka Ueda
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi‑ku, Kumamoto 860‑0082, Japan
| | - Naho Suetsugi
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi‑ku, Kumamoto 860‑0082, Japan
| | - Yu Ishima
- Department of Pharmacokinetics and Biopharmaceutics, Institute of Biomedical Sciences, Tokushima University, Tokushima 770‑8505, Japan
| | - Tokunori Ikeda
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi‑ku, Kumamoto 860‑0082, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi‑ku, Kumamoto 860‑0082, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, Nishi‑ku, Kumamoto 860‑0082, Japan
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12
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Kawai A, Kobashigawa Y, Hirata K, Morioka H, Imoto S, Nishi K, Chuang VTG, Yamasaki K, Otagiri M. Chlorine Atoms of an Aripiprazole Molecule Control the Geometry and Motion of Aripiprazole and Deschloro-aripiprazole in Subdomain IIIA of Human Serum Albumin. ACS Omega 2022; 7:29944-29951. [PMID: 36061730 PMCID: PMC9434609 DOI: 10.1021/acsomega.2c02929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 08/09/2022] [Indexed: 06/15/2023]
Abstract
Aripiprazole (ARP), an antipsychotic drug, binds more strongly to human serum albumin (HSA) than the other ARP derivatives. In addition, the signs for the extrinsic Cotton effects for HSA complexed with ARP or deschloro-ARP are reversed. In this study, we report on a structural-chemical approach using circular dichroism (CD) spectroscopic analysis, X-ray crystallographic analysis, and molecular dynamics simulations. The objective was to examine the relationship between the induced CD spectra and the structural features of the HSA complexes with ARP or deschloro-ARP. The intensity of the induced CD spectra of the HSA complexes with ARP or deschloro-ARP was reduced with increasing temperature. We determined the crystal structure of the HSA complexed with deschloro-ARP in this study and compared it to HSA complexed with ARP that we reported previously. The comparison of these structures revealed that both ARP and deschloro-ARP were bound at the site II pocket in HSA and that the orientation of the molecules was nearly identical. Molecular dynamics simulations indicated that the molecular motions of ARP and deschloro-ARP within the site II pocket were different from one another and the proportion of stacking interaction formations of Tyr411 with the dihydroquinoline rings of ARP and deschloro-ARP was also different. These findings indicate that the induced CD spectra are related to the molecular motions and dynamic interactions of ARP and deschloro-ARP in HSA and may help to understand the molecular recognition and motion that occurs within the binding site for the other HSA ligands more clearly.
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Affiliation(s)
- Akito Kawai
- Fujita
Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
| | - Yoshihiro Kobashigawa
- Graduate
School of Pharmaceutical Sciences, Kumamoto
University, Oe-honmachi 5-1, Chuo-ku, Kumamoto 862-0973, Japan
| | - Kenshiro Hirata
- Faculty
of Pharmaceutical Sciences, Sojo University, Ikeda4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
| | - Hiroshi Morioka
- Graduate
School of Pharmaceutical Sciences, Kumamoto
University, Oe-honmachi 5-1, Chuo-ku, Kumamoto 862-0973, Japan
| | - Shuhei Imoto
- Faculty
of Pharmaceutical Sciences, Sojo University, Ikeda4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
- DDS
Research Institute, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
| | - Koji Nishi
- Faculty
of Pharmaceutical Sciences, Sojo University, Ikeda4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
- DDS
Research Institute, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
| | - Victor Tuan Giam Chuang
- Discipline
of Pharmacy, Curtin Medical School, Faculty of Health Sciences, Curtin University, GPO
Box U1987, Perth, Western Australia 6845, Australia
| | - Keishi Yamasaki
- Faculty
of Pharmaceutical Sciences, Sojo University, Ikeda4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
- DDS
Research Institute, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
| | - Masaki Otagiri
- Faculty
of Pharmaceutical Sciences, Sojo University, Ikeda4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
- DDS
Research Institute, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
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13
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Nishi K, Yano A, Tsukigawa K, Chuang VT, Otagiri M, Yamasaki K. Effect of Fatty Acids and Uremic Toxins on the Binding of Nateglinide, an Insulin Secretagogue, to Site II on Human Serum Albumin. Biol Pharm Bull 2022; 45:803-805. [PMID: 35650107 DOI: 10.1248/bpb.b22-00116] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Nateglinide (NAT) is used to treat diabetes, stimulating pancreatic islet β-cells with residual insulin secretory capacity to increase insulin secretion. NAT has been reported to bind to human serum albumin (HSA), but the detail is still unclear. In the current study, we investigated the location and the affinity for the binding of NAT to HSA. Quantitative analysis data from the ultrafiltration experiment indicated that NAT binds strongly to a primary site on HSA with a high affinity. The presence of diazepam (DZP) or ibuprofen (IB), the specific site II ligands of HSA, decreased the binding constants of NAT respectively, without the significant changes in the number of binding sites. Whereas warfarin (WF), a site I specific ligand, did not affect the binding of NAT. Fluorescent replacement experiment showed that NAT replaced dansylsarcosine (DNSS), a site II probe of HSA, but not WF. An increasing level of myristate and uremic toxins, indoxyl sulphate (IS), indoxyl acetate (IA) and p-cresyl sulphate (PCS), during renal disease significantly increased the concentration of unbound NAT. These findings suggest that NAT specifically binds to site II of HSA and the binding capacity and pharmacokinetics of NAT change in renal diseases.
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Affiliation(s)
- Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
| | - Ayana Yano
- Faculty of Pharmaceutical Sciences, Sojo University
| | - Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
| | | | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
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14
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Hirata K, Kawai A, Chuang VTG, Sakurama K, Nishi K, Yamasaki K, Otagiri M. Effects of Myristate on the Induced Circular Dichroism Spectra of Aripiprazole Bound to Human Serum Albumin: A Structural-Chemical Investigation. ACS Omega 2022; 7:4413-4419. [PMID: 35155934 PMCID: PMC8829929 DOI: 10.1021/acsomega.1c06220] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
The effects of myristate on the induced circular dichroism spectra of aripiprazole (ARP) bound to human serum albumin (HSA) were investigated. High concentrations of myristate reversed the Cotton effects induced in the ARP-HSA system. The observed ellipticities increased with increasing drug concentration up to an ARP-to-HSA molar ratio of 1:1 and then decreased, indicating that the extrinsic Cotton effects were generated by the binding of ARP molecules to the high- and low-affinity sites in HSA. The data for the concentration of free ARP show that myristate displaces ARP molecules from HSA. Moreover, the free fractions of ARP in the ARP-HSA-myristate system increased significantly when adding fusidic acid, a subdomain IB ligand. In the crystal structure of the ARP-HSA-myristate ternary complex, one ARP molecule is bound to subdomain IB, and the interaction between the carbonyl group of ARP and the aromatic ring of Tyr138 in subdomain IB is essential for binding to occur. Meanwhile, the ARP molecule in the ARP-HSA binary complex structure is bound only to subdomain IIIA. Consequently, the inversion in the extrinsic Cotton effects in the ARP-HSA system can be attributed to the modification of the geometry within the binding pocket, in addition to the transfer of ARP from subdomain IIIA to subdomain IB through the displacement as a result of the binding of myristate to subdomain IIIA.
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Affiliation(s)
- Kenshiro Hirata
- Faculty
of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
| | - Akito Kawai
- Fujita
Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
| | - Victor Tuan Giam Chuang
- Discipline
of Pharmacy, Curtin Medical School, Faculty of Health Sciences, Curtin University, GPO
Box U1987, Perth, Western Australia 6845, Australia
| | - Keiki Sakurama
- Faculty
of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
| | - Koji Nishi
- Faculty
of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
| | - Keishi Yamasaki
- Faculty
of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
- DDS
Research Institute, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
| | - Masaki Otagiri
- Faculty
of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
- DDS
Research Institute, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
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15
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Nishi K, Hirano Y, Sato A, Eguchi A, Matsuda K, Toda M, Watanabe T, Iwasaki T, Takahashi N, Hosotani M, Watanabe R, Kato T, Ohtsuka H, Gondaira S, Higuchi H. Effects of intra-articular inoculation with Mycoplasma bovis on immunological responses in calf joints. Vet Immunol Immunopathol 2021; 244:110364. [PMID: 34952252 DOI: 10.1016/j.vetimm.2021.110364] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 11/27/2021] [Accepted: 12/04/2021] [Indexed: 01/18/2023]
Abstract
Mycoplasma arthritis that caused by Mycoplasma bovis exhibit severe lameness. This disease is difficult to cure with antibiotics, but the detailed pathological mechanisms have not been fully clarified. In this study, we examined the effects of intra-articular inoculation with M. bovis on immunological responses in calf joints. We inoculated three calves each with M. bovis or phosphate buffer saline (control) into the right stifle joint and dissected them at 15 days postinoculation. Mycoplasma bovis-inoculated calves exhibited swelling of the stifle joint, increases in synovial fluid, fibrin deposition, and cartilage thinning. Intracellular M. bovis was detected in synovial tissues analyzed by immunohistochemistry and transmission electron microscopy. Messenger RNA expressions of interleukin (IL)-1β, IL-6, IL-8, IL-12p40, and IL-17A in synovial fluid cells and synovial tissues from M. bovis-inoculated calves were significantly higher than those from control calves. Protein levels of these cytokines in synovial fluid from M. bovis-inoculated calves were markedly higher than those from control calves. Our study clarified that inoculation with M. bovis into the stifle joint induced the production of inflammatory cytokines by synovial fluid cells and synovial tissues, causing a severe inflammatory response in joints. Additionally, M. bovis could invade cells in synovial tissues, which may have aided it in evading antibiotics and host immune surveillance.
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Affiliation(s)
- Koji Nishi
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan; NOSAI Okhotsk Monbetsu Veterinary Clinic, Monbetsu, Hokkaido, Japan
| | - Yuki Hirano
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan; Animal Research Center, Agricultural Research Department, Hokkaido Research Organization, Shintoku, Hokkaido, Japan
| | - Ayano Sato
- Large Animal Clinical Science, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Ayako Eguchi
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Kazuya Matsuda
- Department of Veterinary Pathology, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Miyuki Toda
- Department of Veterinary Pathology, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Takafumi Watanabe
- Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Tomohito Iwasaki
- Department of Food Science and Human Wellness, College of Agriculture, Food and Environment Science, Rakuno Gakuen University, Hokkaido, Japan
| | - Naoki Takahashi
- Department of Veterinary Anatomy, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Marina Hosotani
- Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Reina Watanabe
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Toshihide Kato
- Large Animal Clinical Science, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Hiromichi Ohtsuka
- Large Animal Clinical Science, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Satoshi Gondaira
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan.
| | - Hidetoshi Higuchi
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan.
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16
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Yamasaki K, Fujisaki-Hirakawa M, Taguchi K, Kadowaki D, Tsukigawa K, Nishi K, Otagiri M, Seo H. In Vitro and In Vivo Assessment of Atemoya Fruit (Annona atemoya) for Food-Drug Interactions. Eur J Drug Metab Pharmacokinet 2021; 47:177-185. [PMID: 34881402 DOI: 10.1007/s13318-021-00739-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND OBJECTIVES Atemoya (Annona atemoya) is increasingly being consumed worldwide because of its pleasant taste. However, only limited information is available concerning possible atemoya-drug interactions. In the present study, the issue of whether atemoya shows food-drug interactions with substrate drugs of the major drug-metabolizing cytochrome P450s (i.e., CYP1A2, CYP2C9, and CYP3A) is addressed. METHODS The ability of atemoya juice to inhibit the activities of phenacetin O-deethylase (CYP1A2), diclofenac 4'-hydroxylase (CYP2C9), and midazolam 1'-hydroxylase (CYP3A) was examined in vitro using human and rat liver microsomes. The in vivo pharmacokinetics of phenacetin and metabolites derived from it in rats when atemoya juice or fluvoxamine (a CYP1A2 inhibitor) was preadministered were also investigated. RESULTS Atemoya juice significantly inhibited CYP1A2 activity in human liver microsomes, but not the activities of CYP2C9 and CYP3A. In spite of this inhibition, preadministration of atemoya had no effect on the pharmacokinetics of phenacetin, a CYP1A2 substrate, in rats. Meanwhile, preadministration of fluvoxamine significantly extended the time needed for the elimination of phenacetin, possibly due to the inhibition of CYP1A2. This suggests that the intake of an excess amount of atemoya juice is necessary to cause a change in the pharmacokinetics of phenacetin when the IC50 values for CYP1A2 inhibition by atemoya and fluvoxamine are taken into account. CONCLUSION The results indicate that a daily intake of atemoya would not change the pharmacokinetics of CYP1A2 substrates such as phenacetin as well as CYP2C9- and CYP3A-substrate drugs.
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Affiliation(s)
- Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, 862-0082, Japan.
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan.
| | | | - Kazuaki Taguchi
- Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, Japan
| | - Daisuke Kadowaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, 862-0082, Japan
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan
| | - Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, 862-0082, Japan
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, 862-0082, Japan
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, 862-0082, Japan
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan
| | - Hakaru Seo
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, 862-0082, Japan
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan
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17
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Yamasaki K, Sakurama K, Nishi K, Tsukigawa K, Seo H, Otagiri M, Taguchi K. An in-vitro comparative study of the binding of caspofungin and micafungin to plasma proteins. J Pharm Pharmacol 2021; 74:88-93. [PMID: 34791369 DOI: 10.1093/jpp/rgab157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 10/19/2021] [Indexed: 11/14/2022]
Abstract
OBJECTIVES Echinocandins are widely used for the treatment of invasive fungal diseases. While they bind strongly to plasma proteins, our knowledge of this process is not sufficient to permit their pharmacokinetics and pharmacodynamics targets to be discussed. In this study, we characterized the binding of two echinocandins, caspofungin and micafungin, to plasma proteins, human serum albumin (HSA) and human α 1-acid glycoprotein (AAG). METHODS The binding parameters, number of binding sites (n) and association constant (K) for caspofungin and micafungin to HSA and AAG were determined by equilibrium dialysis. The binding site on HSA for these echinocandins was identified by conducting inhibition experiments. KEY FINDINGS Caspofungin was found to bind strongly to a single site on HSA (n = 1.26, K = 0.45 × 106 M-1) and AAG (n = 0.99, K = 0.29 × 106 M-1). Micafungin was found to bind more strongly to HSA (n = 1.35, K = 1.44 × 106 M-1) and AAG (n = 1.32, K = 1.16 × 106 M-1). The binding site for these drugs on HSA appears to be within subdomain IA. CONCLUSIONS Free fraction of caspofungin and micafungin in patients may not be substantially affected due to the contribution of AAG to the overall protein binding and the binding to subdomain IA on HSA, which is different from the major drug-binding sites within subdomains IB, IIA and IIIA.
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Affiliation(s)
- Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan.,DDS Research Institute, Sojo University, Kumamoto, Japan
| | - Keiki Sakurama
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan.,DDS Research Institute, Sojo University, Kumamoto, Japan
| | - Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan.,DDS Research Institute, Sojo University, Kumamoto, Japan
| | - Hakaru Seo
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan.,DDS Research Institute, Sojo University, Kumamoto, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan.,DDS Research Institute, Sojo University, Kumamoto, Japan
| | - Kazuaki Taguchi
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan.,Division of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan
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18
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Mulyani R, Harmayani E, Nurliyani N, Nishi K, Ishida M, Sugahara T. Stimulation of IgM Production in HB4C5 Cell Line and Mouse Splenocytes by Egg Yolk Extract from the Egg of Indonesian Native Chicken. Trop Anim Sci J 2021. [DOI: 10.5398/tasj.2021.44.4.511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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19
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Gondaira S, Nishi K, Fujiki J, Iwano H, Watanabe R, Eguchi A, Hirano Y, Higuchi H, Nagahata H. Innate immune response in bovine neutrophils stimulated with Mycoplasma bovis. Vet Res 2021; 52:58. [PMID: 33863386 PMCID: PMC8052696 DOI: 10.1186/s13567-021-00920-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 02/28/2021] [Indexed: 11/26/2022] Open
Abstract
Mycoplasma bovis (M. bovis) is a significant worldwide pathogen of cattle. Neutrophils have an important role in the innate immune response during infection with M. bovis. However, even though neutrophils accumulate in M. bovis infection, the interaction of M. bovis and neutrophils has not been fully elucidated. We attempted to elucidate the innate immune response of neutrophils stimulated with M. bovis and evaluate the transcriptome and functional analysis of bovine neutrophils stimulated with M. bovis. Proinflammatory cytokines, such as inducible nitric oxide (iNOS), which was the most increased gene in transcriptome analysis, were increased in quantitative polymerase chain reaction analysis of bovine neutrophils stimulated with live or heat-killed M. bovis. Nitric oxide and intracellular reactive oxygen species production of neutrophils stimulated with M. bovis was significantly increased. Neutrophils stimulated with M. bovis showed an increased ratio of nonapoptotic cell death compared to unstimulated controls. We demonstrated that neutrophil extracellular traps (NETs) formation was not recognized in neutrophils stimulated with live M. bovis. However, heat-killed M. bovis induced NETs formation. We also showed the interaction with M. bovis and bovine neutrophils regarding proinflammatory cytokine gene expression and functional expression related to NETs formation. Live and killed M. bovis induced innate immune responses in neutrophils and had the potential to induce NETs formation, but live M. bovis escaped NETs.
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Affiliation(s)
- Satoshi Gondaira
- grid.412658.c0000 0001 0674 6856Animal Health Laboratory, Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501 Japan
| | - Koji Nishi
- grid.412658.c0000 0001 0674 6856Animal Health Laboratory, Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501 Japan
| | - Jumpei Fujiki
- grid.412658.c0000 0001 0674 6856Veterinary Biochemistry, Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501 Japan
| | - Hidetomo Iwano
- grid.412658.c0000 0001 0674 6856Veterinary Biochemistry, Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501 Japan
| | - Reina Watanabe
- grid.412658.c0000 0001 0674 6856Animal Health Laboratory, Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501 Japan
| | - Ayako Eguchi
- grid.412658.c0000 0001 0674 6856Animal Health Laboratory, Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501 Japan
| | - Yuki Hirano
- grid.452441.2Animal Research Center, Agricultural Research Department, Hokkaido Research Organization, Shintoku, Hokkaido 081-0038 Japan
| | - Hidetoshi Higuchi
- grid.412658.c0000 0001 0674 6856Animal Health Laboratory, Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501 Japan
| | - Hajime Nagahata
- grid.412658.c0000 0001 0674 6856Animal Health Laboratory, Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501 Japan
- grid.261356.50000 0001 1302 4472Farm Animal Veterinary Nursing Laboratory, Department of Veterinary Associated Science, Faculty of Veterinary Medicine, Okayama University, Imabari, Ehime 794-8555 Japan
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20
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Nishi K, Sakurama K, Watanabe H, Maruyama T, Yamasaki K, Otagiri M. Effects of Uremic Toxins on the Binding of Aripiprazole to Human Serum Albumin. Biol Pharm Bull 2021; 44:437-441. [PMID: 33642552 DOI: 10.1248/bpb.b20-00929] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We recently reported that aripiprazole (ARP), an antipsychotic drug, binds strongly to human serum albumin (HSA), the major drug binding protein in serum. It is known that uremic toxins that accumulate during renal disease affect the interaction between HSA and drug binding. In this study, the issue of how uremic toxins (indoxyl sulfate, indole acetic acid and p-cresyl sulfate) affect the binding of ARP to HSA was investigated. Equilibrium dialysis experiments revealed that all uremic toxins inhibited the binding of ARP to HSA although the inhibitory effects differed, depending on the specific uremic toxin. The potency of inhibition can be partially explained by the affinities of uremic toxins to HSA. Fluorescence displacement experiments suggested that ARP as well as all uremic toxins bind to site II of HSA. The inhibitory effects of the toxins on the binding of ARP for the drugs binding to the diazepam subsite are significantly larger, comparing with those for binding to arylpropionic acids subsite. Interestingly, induced circular dichroism (CD) spectra indicated that the spatial orientation of p-cresyl sulfate in the binding pocket is different from that for indoxyl sulfate and indole acetic acid. The limited findings obtained herein are important data in considering the effects of uremic toxins on the pharmacokinetics of ARP and the drugs that bind to site II on HSA, particularly drugs binding to diazepam binding site in site II.
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Affiliation(s)
- Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University
| | | | | | - Toru Maruyama
- Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
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21
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Yamasaki K, Nishi K, Tsukigawa K, Taguchi K, Otagiri M, Seo H. Possible Role of Electrolytes on the Formation of Precipitates during the Infusion of Nafamostat Mesilate in Hemodialysis. Biol Pharm Bull 2021; 44:259-265. [PMID: 33518678 DOI: 10.1248/bpb.b20-00808] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Nafamostat mesilate (NFM) is used as an anticoagulant during hemodialysis in patients who have had complications due to hemorrhages. The formation of precipitates, which could lead to the interruption of hemodialysis has been reported when NFM is infused into blood during hemodialysis. We report herein on an examination of possible factors that could cause this. The effects of electrolytes such as phosphates, citrates or succinates on the formation of precipitates were examined by mixing NFM with aqueous solutions or plasma that contained these electrolytes. The formation of precipitates was observed in all electrolyte solutions when higher concentrations of NFM were mixed at around physiological pH. In the case of plasma, precipitates were observed when solutions containing higher concentrations of NFM were mixed with plasma that contained phosphate and citrate. In addition, the formation of precipitates under dynamic conditions where NFM was infused into flowing electrolyte solutions was also evaluated. The data suggested that such precipitates might be formed and disrupt the blood flow and/or an NFM infusion when NFM is infused into blood flowing in the hemodialysis circuit. The findings presented herein suggest the serum levels of anionic electrolytes (e.g., phosphate), the type of excipients present in pharmaceutical products (e.g., succinic acid or citric acid), the concentration of NFM used for the infusion or the rates of NFM infusion and blood flow are all factors that could affect precipitate formation during NFM infusions for hemodialysis.
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Affiliation(s)
- Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
| | - Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
| | - Kazuaki Taguchi
- Faculty of Pharmaceutical Sciences, Sojo University.,Faculty of Pharmacy, Keio University
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
| | - Hakaru Seo
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
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22
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Sakurama K, Nishi K, Chuang VTG, Hashimoto M, Yamasaki K, Otagiri M. Effects of Oxidation of Human Serum Albumin on the Binding of Aripiprazole. Biol Pharm Bull 2021; 43:1023-1026. [PMID: 32475912 DOI: 10.1248/bpb.b20-00205] [Citation(s) in RCA: 4] [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
Aripiprazole (ARP) is one of antipsychotics and binds to human serum albumin (HSA) with a high affinity. In this study, we investigated the binding characteristics of ARP to oxidized HSA as observed in chronic disease conditions. Oxidized HSAs were prepared using chloramine-T (CT-HSA) or metal-catalyzed oxidation system (MCO-HSA) in vitro, respectively. An increase in the carbonyl content was confirmed in oxidized HSAs. From the results of circular dichroism (CD) and tryptophan fluorescence spectra, no significant structural change of oxidized HSAs was observed. These results indicate that prepared HSAs are mildly oxidized and well reflects the status of HSA during chronic diseases. However, oxidized HSAs were observed to have a significant decrease in binding to ARP. The results of the induced CD spectrum suggested that ARP bound to oxidized HSAs with a similar orientation. These results suggest that oxidation of HSA during chronic disease state significantly affected the microenvironment of the binding site for ARP and binding capacity of HSA to ARP.
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Affiliation(s)
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo Univerity
| | | | | | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo Univerity.,DDS Research Institute, Sojo University
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo Univerity.,DDS Research Institute, Sojo University
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23
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Yamasaki K, Kawai A, Sakurama K, Udo N, Yoshino Y, Saito Y, Tsukigawa K, Nishi K, Otagiri M. Interaction of Benzbromarone with Subdomains IIIA and IB/IIA on Human Serum Albumin as the Primary and Secondary Binding Regions. Mol Pharm 2021; 18:1061-1070. [PMID: 33478218 DOI: 10.1021/acs.molpharmaceut.0c01004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 12/11/2022]
Abstract
Benzbromarone has been used for the treatment of gout for more than 30 years. Although it shows a high level of binding to plasma proteins (>99%), our knowledge of this binding is not sufficiently extensive to permit us to understand its pharmacokinetics and pharmacodynamics. To address this issue in more detail, we characterized the binding of benzbromarone to human serum albumin (HSA), the most abundant protein in plasma. Equilibrium dialysis and circular dichroism findings indicated that benzbromarone binds strongly to one primary as well as to multiple secondary sites on HSA and that the bromine atoms of benzbromarone play important roles in this high affinity binding. An X-ray crystallographic study revealed that benzbromarone molecules bind to hydrophobic pockets within subdomains IB, IIA, and IIIA. Inhibition experiments using site specific ligands (subdomain IB; fusidic acid, IIA; warfarin, IIIA; diazepam) indicated that the primary and secondary binding sites that benzbromarone binds to are within subdomains IIIA and IB/IIA, respectively. Lastly, a study of the effect of fatty acids on the benzbromarone-HSA interaction suggested that benzbromarone, when displaced from subdomain IIIA by sodium oleate, could transfer to subdomains IB or IIA. Thus, these data will permit more relevant assessments of the displacement interactions of benzbromarone especially in cases of co-administered drugs or endogenous compounds that also bind to subdomain IIIA. In addition, the findings presented herein will also be useful for designing drug combination therapy in which pharmacokinetic and pharmacodynamic performance need to be controlled.
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Affiliation(s)
- Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan.,DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
| | - Akito Kawai
- Department of Microbiology, Fujita Health University School of Medicine, Toyoake 470-1192, Aichi, Japan
| | - Keiki Sakurama
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Nagiko Udo
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Yuta Yoshino
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Yuki Saito
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan.,DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan.,DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan.,DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
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24
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Nishi K, Gondaira S, Okamoto M, Matsuda K, Sato A, Kato T, Sasagawa M, Tanaka T, Higuchi H. Inflammatory cytokine mRNA and protein levels in the synovial fluid of Mycoplasma arthritis calves. J Vet Med Sci 2021; 83:31-35. [PMID: 33431726 PMCID: PMC7870416 DOI: 10.1292/jvms.20-0491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Bovine Mycoplasma arthritis (MA) is caused by Mycoplasma bovis and exhibits severe clinical symptoms. However, the pathophysiology of bovine MA is incompletely understood. In this study, we examined the cytokine mRNA expression of synovial fluid (SF) cells and cytokine concentrations in the SF of MA calves. The SF was isolated from five clinically healthy (control) and seven MA calves. mRNA and protein levels of interleukin (IL)-1β, IL-6, IL-8, IL-12, and IL-17 in the SF from MA calves were significantly higher than those from control calves. Our results indicate that SF cells produce inflammatory cytokines, which mainly contribute to the severe inflammatory response in the joints of the MA calves.
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Affiliation(s)
- Koji Nishi
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Satoshi Gondaira
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Mariko Okamoto
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan.,Present address: Division of Bacterial and Parasitic Disease, National Institute of Animal Health, National Agriculture and Food Research Organization, Tsukuba, Ibaraki 305-0856, Japan
| | - Kazuya Matsuda
- Department of Veterinary Pathology, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Ayano Sato
- Large Animal Clinical Science, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Toshihide Kato
- Large Animal Clinical Science, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Misawo Sasagawa
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Takahiro Tanaka
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Hidetoshi Higuchi
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
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25
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Tsukigawa K, Imoto S, Yamasaki K, Nishi K, Tsutsumi T, Yokoyama S, Ishima Y, Otagiri M. Synthesis and In Vitro Assessment of pH-Sensitive Human Serum Albumin Conjugates of Pirarubicin. Pharmaceuticals (Basel) 2020; 14:ph14010022. [PMID: 33396604 PMCID: PMC7823624 DOI: 10.3390/ph14010022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 12/24/2020] [Accepted: 12/27/2020] [Indexed: 12/15/2022] Open
Abstract
In a previous study, we reported on the development of a synthetic polymer conjugate of pirarubicin (THP) that was formed via an acid-labile hydrazone bond between the polymer and the THP. However, the synthetic polymer itself was non-biodegradable, which could lead to unexpected adverse effects. Human serum albumin (HSA), which has a high biocompatibility and good biodegradability, is also a potent carrier for delivering antitumor drugs. The objective of this study was to develop pH-sensitive HSA conjugates of THP (HSA-THP), and investigate the release of THP and the cytotoxicity under acidic conditions in vitro for further clinical development. HSA-THP was synthesized by conjugating maleimide hydrazone derivatives of THP with poly-thiolated HSA using 2-iminothiolane, via a thiol-maleimide coupling reaction. We synthesized two types of HSA-THP that contained different amounts of THP (HSA-THP2 and HSA-THP4). Free THP was released from both of the HSA conjugates more rapidly at an acidic pH, and the rates of release for HSA-THP2 and HSA-THP4 were similar. Moreover, both HSA-THPs exhibited a higher cytotoxicity at acidic pH than at neutral pH, which is consistent with the effective liberation of free THP under acidic conditions. These findings suggest that these types of HSA-THPs are promising candidates for further development.
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Affiliation(s)
- Kenji Tsukigawa
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan; (K.T.); (S.I.); (K.Y.); (K.N.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Shuhei Imoto
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan; (K.T.); (S.I.); (K.Y.); (K.N.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan; (K.T.); (S.I.); (K.Y.); (K.N.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan; (K.T.); (S.I.); (K.Y.); (K.N.)
| | - Toshihiko Tsutsumi
- School of Pharmaceutical Sciences, Kyushu University of Health and Welfare, 1714-1 Yoshino-machi, Nobeoka, Miyazaki 882-8508, Japan; (T.T.); (S.Y.)
| | - Shoko Yokoyama
- School of Pharmaceutical Sciences, Kyushu University of Health and Welfare, 1714-1 Yoshino-machi, Nobeoka, Miyazaki 882-8508, Japan; (T.T.); (S.Y.)
| | - Yu Ishima
- Department of Pharmacokinetics and Biopharmaceutics, Institute of Biomedical Sciences, Tokushima University, 1-78-1 Sho-machi, Tokushima 770-8505, Japan;
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan; (K.T.); (S.I.); (K.Y.); (K.N.)
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
- Correspondence: ; Tel.: +81-96-326-3887
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26
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Nishi K, Gondaira S, Fujiki J, Katagata M, Sawada C, Eguchi A, Iwasaki T, Iwano H, Higuchi H. Invasion of Mycoplasma bovis into bovine synovial cells utilizing the clathrin-dependent endocytosis pathway. Vet Microbiol 2020; 253:108956. [PMID: 33373880 DOI: 10.1016/j.vetmic.2020.108956] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 12/08/2020] [Indexed: 11/30/2022]
Abstract
Mycoplasma bovis causes chronic arthritis in cattle, accompanied by a severe inflammatory reaction of the joints. Recent studies demonstrated that M. bovis can invade bovine non-phagocytic cells, but the mechanism of M. bovis internalization in the cells remains unclear. In this study, we examined the mechanism by which M. bovis invades synovial cells, including the pathway of cell invasion. Using fluorescence and electron microscopy, multiple M. bovis were observed to adhere to and be internalized in cultured bovine synovial cells. The number of M. bovis colocalized with clathrin heavy chain (CLTC) per cell was significantly higher than the number of M. bovis colocalized with caveolin-1 (Cav-1). The internalized ratio of M. bovis in synovial cells treated with clathrin-dependent endocytosis inhibitor and small interfering RNA (siRNA) against CLTC was significantly lower than that in control cells. In contrast, the internalized ratio of M. bovis in synovial cells was unaffected by siRNA against Cav-1. These findings provide the first evidence that clathrin-dependent endocytosis is one of the major pathways by which M. bovis invades into synovial cells.
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Affiliation(s)
- Koji Nishi
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Satoshi Gondaira
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Jumpei Fujiki
- Laboratory of Veterinary Biochemistry, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Michiko Katagata
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Chizuru Sawada
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Ayako Eguchi
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Tomohito Iwasaki
- Department of Food Science and Human Wellness, Rakuno Gakuen University, Hokkaido, Japan
| | - Hidetomo Iwano
- Laboratory of Veterinary Biochemistry, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - Hidetoshi Higuchi
- Animal Health Laboratory, Department of Veterinary Science, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan.
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Nishi K, Gondaira S, Okamoto M, Watanabe R, Hirano Y, Fujiki J, Iwano H, Higuchi H. Corrigendum to "Mycoplasma bovis induces matrix metalloproteinase-3 expression in bovine synovial cells via up-regulation of interleukin-1β expression in mononuclear cells" [Vet. Immunol. Immunopathol. 227 (September) (2020) 110057]. Vet Immunol Immunopathol 2020; 231:110164. [PMID: 33308875 DOI: 10.1016/j.vetimm.2020.110164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Koji Nishi
- Animal Health Laboratory, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan
| | - Satoshi Gondaira
- Animal Health Laboratory, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan
| | - Mariko Okamoto
- Animal Health Laboratory, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan
| | - Reina Watanabe
- Animal Health Laboratory, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan
| | - Yuki Hirano
- Animal Health Laboratory, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan
| | - Jumpei Fujiki
- Laboratory of Veterinary Biochemistry, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan
| | - Hidetomo Iwano
- Laboratory of Veterinary Biochemistry, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan
| | - Hidetoshi Higuchi
- Animal Health Laboratory, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan.
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Gondaira S, Nishi K, Iwano H, Fujiki J, Watanabe R, Eguchi A, Hirano Y, Higuchi H, Nagahata H. Transcriptome analysis of Mycoplasma bovis stimulated bovine peripheral blood mononuclear cells. Vet Immunol Immunopathol 2020; 232:110166. [PMID: 33348232 DOI: 10.1016/j.vetimm.2020.110166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 06/08/2020] [Revised: 12/03/2020] [Accepted: 12/04/2020] [Indexed: 01/26/2023]
Abstract
Mycoplasma bovis is a pathogenic bacterium in bovines that causes huge global economic losses. Numerous factors play important roles in M. bovis pathogenesis; however, the host immune response involved in M. bovis infection has not been fully elucidated. We aimed to determine the characteristics of the host immune response to Mycoplasma infection. We evaluated the responsiveness of bovine peripheral blood mononuclear cells (PBMCs) stimulated with M. bovis via microarray analysis. The transcriptional abundance of innate immune-related genes IL-36A, IL-27, IFN-γ, and IL-17 in PBMCs increased after M. bovis exposure. Upon M. bovis infection, there was increased expression of the lymphocyte activated genes basic leucine zipper transcription factor (BATF) and signaling lymphocytic activation molecule family members 1 and 7 (SLAMF 1 and SLAMF 7) in PBMCs compared with that in unstimulated cells. The study revealed that the transcriptional abundance of innate immunity genes in PBMCs increased during M. bovis infection. This induced the activation of PBMCs, giving rise to an immune response, which is followed by the development of the inflammatory response. The results from this study could be used as the basis for the development of novel vaccine candidates against M. bovis.
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Affiliation(s)
| | | | - Hidetomo Iwano
- Department of Veterinary Biochemistry, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan.
| | - Jumpei Fujiki
- Department of Veterinary Biochemistry, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan.
| | | | | | - Yuki Hirano
- Animal Research Center, Agricultural Research Department, Hokkaido Research Organization, Shintoku, Hokkaido, 081-0038, Japan.
| | | | - Hajime Nagahata
- Animal Health Laboratory, Japan; Farm Animal Veterinary Nursing Laboratory, Department of Veterinary Associated Science, Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Ehime, 794-8555, Japan.
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29
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Hiramatsu M, Sugiu K, Hishikawa T, Haruma J, Takahashi Y, Murai S, Nishi K, Yamaoka Y, Shimazu Y, Fujii K, Kameda M, Kurozumi K, Date I. Detailed Arterial Anatomy and Its Anastomoses of the Sphenoid Ridge and Olfactory Groove Meningiomas with Special Reference to the Recurrent Branches from the Ophthalmic Artery. AJNR Am J Neuroradiol 2020; 41:2082-2087. [PMID: 33004344 DOI: 10.3174/ajnr.a6790] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 07/15/2020] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Detailed arterial anatomy of the sphenoid ridge and olfactory groove meningiomas is complicated due to the fine angioarchitecture and anastomoses between each feeder. Herein, we present details of the arterial anatomy and the relationships of feeders in these lesions. MATERIALS AND METHODS This study included 20 patients admitted to our department between April 2015 and March 2020. Conditions of subjects consisted of 16 sphenoid ridge meningiomas and 4 olfactory groove meningiomas. We mainly analyzed arterial anatomy using 3D rotational angiography and slab MIP images of these lesions. We also analyzed the anastomoses of each feeder. RESULTS We found that 19 (95%), 15 (75%), and 15 (75%) lesions had feeders from the ophthalmic, internal carotid, and external carotid arteries, respectively. As feeders from the ophthalmic artery, recurrent meningeal arteries were involved in 18 lesions (90%). Fifteen lesions (75%) had anastomoses between each feeder. CONCLUSIONS Most of the meningiomas in the sphenoid ridge and olfactory groove had feeders from the ophthalmic and internal carotid arteries. There were various anastomoses between each feeder. This is the first report to demonstrate the detailed arterial anatomy and frequency of recurrent branches from the ophthalmic artery and their anastomoses using detailed imaging techniques.
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Affiliation(s)
- M Hiramatsu
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - K Sugiu
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - T Hishikawa
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - J Haruma
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Y Takahashi
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - S Murai
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - K Nishi
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Y Yamaoka
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Y Shimazu
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - K Fujii
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - M Kameda
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - K Kurozumi
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Department of Neurosurgery (K.K.), Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - I Date
- From the Department of Neurological Surgery (M.H., K.S., T.H., J.H., Y.T., S.M., K.N., Y.Y., Y.S., K.F., M.K., K.K., I.D.), Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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30
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Taguchi K, Chuang VTG, Hashimoto M, Nakayama M, Sakuragi M, Enoki Y, Nishi K, Matsumoto K, Seo H, Otagiri M, Yamasaki K. Characterization of Bovine Lactoferrin Nanoparticle Prepared by Desolvation Technique. Chem Pharm Bull (Tokyo) 2020; 68:766-772. [PMID: 32741918 DOI: 10.1248/cpb.c20-00222] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Lactoferrin (Lf) nanoparticles have been developed as a carrier of drugs and gene. Two main methods, desolvation technique and emulsification method, for preparation of protein nanoparticles have been reported so far, but most of the previous reports of Lf nanoparticles preparation are limited to emulsification method. In this study, we investigated the optimal conditions by desolvation technique for the preparation of glutaraldehyde-crosslinked bovine Lf (bLf) nanoparticles within the size range of 100-200 nm, and evaluated their properties as a carrier for oral and intravenous drug delivery. The experimental results of dynamic light scattering and Transmission Electron Microscope suggested that glutaraldehyde-crosslinked bLf nanoparticles with 150 nm in size could be produced by addition of 2-propanol as the desolvating solvent into the bLf solution adjusted to pH 6, followed by crosslinking with glutaraldehyde. These cross-linked bLf nanoparticles were found to be compatible to blood components and resistant against rapid degradation by pepsin. Thus, cross-linked bLf nanoparticles prepared by desolvation technique can be applied as a drug carrier for intravenous administration and oral delivery.
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Affiliation(s)
- Kazuaki Taguchi
- Faculty of Pharmaceutical Sciences, Sojo University.,Faculty of Pharmacy, Keio University
| | - Victor Tuan Giam Chuang
- Faculty of Pharmacy, Keio University.,School of Pharmacy, Monash University Malaysia.,School of Pharmacy and Biomedical Science, Curtin University
| | | | | | | | | | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University
| | | | - Hakaru Seo
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
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31
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Yamasaki K, Sakurama K, Nishi K, Watanabe H, Maruyama T, Seo H, Otagiri M, Taguchi K. Characterization of the Interaction of Daptomycin With Site II on Human Serum Albumin. J Pharm Sci 2020; 109:2919-2924. [PMID: 32565355 DOI: 10.1016/j.xphs.2020.06.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/27/2020] [Accepted: 06/08/2020] [Indexed: 11/16/2022]
Abstract
Daptomycin, a cyclic lipopeptide antibiotic, is clinically used for the treatment of infections caused by Gram-positive bacteria, including the methicillin-resistant Staphylococcus aureus and the vancomycin-resistant Enterococci. While daptomycin shows high plasma protein binding (90-93%), our knowledge of the binding process is not extensive. To address this issue in more detail, we characterized the binding of daptomycin to plasma proteins and the findings indicate that the association constant for the binding of daptomycin to human serum albumin (HSA) is much higher than that for α1-acid glycoprotein, another plasma protein. Daptomycin was also found to bind to a single site on HSA, which was identified as site II. The findings also suggest that the n-decanoyl moiety of daptomycin penetrates into the hydrophobic pocket of site II and that this acyl moiety interacts with Tyr411 at the entrance to site II. Due to this selective interaction with site II, daptomycin binding was significantly inhibited by drugs (ibuprofen or diazepam) and endogenous compounds (uremic toxins or fatty acids) which also strongly bind to site II. In diseased states, such an inhibition in the binding could result in the pharmacokinetics and therapeutic action of daptomycin being substantially altered.
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Affiliation(s)
- Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan; DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan.
| | - Keiki Sakurama
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Hiroshi Watanabe
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Toru Maruyama
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Hakaru Seo
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan; DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan; DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
| | - Kazuaki Taguchi
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan; Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, Japan.
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32
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Guan C, Niu Y, Chen SC, Kang Y, Wu JX, Nishi K, Chang CCY, Chang TY, Luo T, Chen L. Structural insights into the inhibition mechanism of human sterol O-acyltransferase 1 by a competitive inhibitor. Nat Commun 2020; 11:2478. [PMID: 32424158 PMCID: PMC7234994 DOI: 10.1038/s41467-020-16288-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 04/24/2020] [Indexed: 01/04/2023] Open
Abstract
Sterol O-acyltransferase 1 (SOAT1) is an endoplasmic reticulum (ER) resident, multi-transmembrane enzyme that belongs to the membrane-bound O-acyltransferase (MBOAT) family. It catalyzes the esterification of cholesterol to generate cholesteryl esters for cholesterol storage. SOAT1 is a target to treat several human diseases. However, its structure and mechanism remain elusive since its discovery. Here, we report the structure of human SOAT1 (hSOAT1) determined by cryo-EM. hSOAT1 is a tetramer consisted of a dimer of dimer. The structure of hSOAT1 dimer at 3.5 Å resolution reveals that a small molecule inhibitor CI-976 binds inside the catalytic chamber and blocks the accessibility of the active site residues H460, N421 and W420. Our results pave the way for future mechanistic study and rational drug design targeting hSOAT1 and other mammalian MBOAT family members.
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Affiliation(s)
- Chengcheng Guan
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, Peking University, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, 100871, Beijing, China
| | - Yange Niu
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, Peking University, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, 100871, Beijing, China
| | - Si-Cong Chen
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering, Ministry of Education and Beijing National Laboratory for Molecular Science, College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China
| | - Yunlu Kang
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, Peking University, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, 100871, Beijing, China
| | - Jing-Xiang Wu
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, Peking University, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, 100871, Beijing, China
| | - Koji Nishi
- Department of Biochemistry and Cell Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, 03755, USA
| | - Catherine C Y Chang
- Department of Biochemistry and Cell Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, 03755, USA
| | - Ta-Yuan Chang
- Department of Biochemistry and Cell Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, 03755, USA
| | - Tuoping Luo
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering, Ministry of Education and Beijing National Laboratory for Molecular Science, College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China
- Peking-Tsinghua Center for Life Sciences, Peking University, 100871, Beijing, China
- Academy for Advanced Interdisciplinary Studies, Peking University, 100871, Beijing, China
| | - Lei Chen
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, Peking University, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, 100871, Beijing, China.
- Peking-Tsinghua Center for Life Sciences, Peking University, 100871, Beijing, China.
- Academy for Advanced Interdisciplinary Studies, Peking University, 100871, Beijing, China.
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Abstract
Albumin is widely conserved from vertebrates to invertebrates, and nature of mammalian albumins permit them to bind various endogenous ligands and drugs in the blood. It is known that at least two major ligand binding sites are present on the albumin molecule, which are referred to as Site I and Site II. These binding sites are thought to be almost completely conserved among mammals, even though the degree of binding to these sites are different depending on the physical and chemical properties of drugs and differences in the microenvironment in the binding pockets. In addition, the binding sites for medium and long-chain fatty acids are also well conserved among mammals, and it is considered that there are at least seven binding sites, including Site I and Site II. These bindings properties of albumin in the blood are also widely known to be important for transporting drugs and fatty acids to various tissues. It can therefore be concluded that albumin is one of the most important serum proteins for various ligands, and information on human albumin can be very useful in predicting the ligand binding properties of the albumin of other vertebrates.
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Affiliation(s)
- Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-1, Nishi-Ku, Kumamoto, 860-0082, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-1, Nishi-Ku, Kumamoto, 860-0082, Japan
- DDS Research Institute, Sojo University, Ikeda 4-22-1, Nishi-Ku, Kumamoto, 860-0082, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-1, Nishi-Ku, Kumamoto, 860-0082, Japan.
- DDS Research Institute, Sojo University, Ikeda 4-22-1, Nishi-Ku, Kumamoto, 860-0082, Japan.
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Yamasaki K, Iohara D, Oyama Y, Nishizaki N, Kawazu S, Nishi K, Kadowaki D, Taguchi K, Otagiri M, Seo H. Processing grapefruit juice with γ-cyclodextrin attenuates its inhibitory effect on cytochrome P450 3A activity. ACTA ACUST UNITED AC 2019; 72:356-363. [PMID: 31828807 DOI: 10.1111/jphp.13212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 11/23/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Grapefruit (Citrus paradisi) juice enhances the oral bioavailability of drugs that are metabolized by intestinal cytochrome P450 3A4 (CYP3A4). Patients are advised to avoid drinking grapefruit juice to prevent this drug-grapefruit juice interaction. The aim of this study was to investigate whether processing grapefruit juice with cyclodextrins (CDs) would result in preventing or inhibiting this interaction. METHODS Grapefruit juice and the major furanocoumarins found in grapefruit, bergamottin (BG) and 6', 7'-dihydroxy bergamottin (DHBG) were mixed with α, β and γCDs. The effects of these processed juice samples and furanocoumarins on CYP3A activity were compared with the corresponding values for unprocessed juices and furanocoumarins. Interactions between CDs and these furanocoumarins were also investigated by phase solubility and 1 H NMR studies. KEY FINDINGS The inhibition of CYP3A by grapefruit juice was significantly attenuated by processing particularly with γCD. Similar attenuation effects by γCD were observed in the cases of BG and DHBG. Furthermore, BG and DHBG were suggested to be strongly encapsulated in the cavity of γCD. CONCLUSION The encapsulation of BG and DHBG by γCD and the resulting attenuation of the inhibition of CYP3A activity by grapefruit juice may be applicable to juice processing for preventing drug-grapefruit juice interactions.
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Affiliation(s)
- Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo, Nishi-ku, Kumamoto, Japan.,DDS Research Institute, Sojo University, Nishi-ku, Kumamoto, Japan
| | - Daisuke Iohara
- Faculty of Pharmaceutical Sciences, Sojo, Nishi-ku, Kumamoto, Japan.,DDS Research Institute, Sojo University, Nishi-ku, Kumamoto, Japan
| | - Yoko Oyama
- Faculty of Pharmaceutical Sciences, Sojo, Nishi-ku, Kumamoto, Japan
| | - Narumi Nishizaki
- Faculty of Pharmaceutical Sciences, Sojo, Nishi-ku, Kumamoto, Japan
| | - Seitaro Kawazu
- Faculty of Pharmaceutical Sciences, Sojo, Nishi-ku, Kumamoto, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo, Nishi-ku, Kumamoto, Japan
| | - Daisuke Kadowaki
- Faculty of Pharmaceutical Sciences, Sojo, Nishi-ku, Kumamoto, Japan.,DDS Research Institute, Sojo University, Nishi-ku, Kumamoto, Japan
| | - Kazuaki Taguchi
- Faculty of Pharmaceutical Sciences, Sojo, Nishi-ku, Kumamoto, Japan.,Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo, Nishi-ku, Kumamoto, Japan.,DDS Research Institute, Sojo University, Nishi-ku, Kumamoto, Japan
| | - Hakaru Seo
- Faculty of Pharmaceutical Sciences, Sojo, Nishi-ku, Kumamoto, Japan.,DDS Research Institute, Sojo University, Nishi-ku, Kumamoto, Japan
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35
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Yamasaki K, Taguchi K, Nishi K, Otagiri M, Seo H. Enhanced dissolution and oral bioavailability of praziquantel by emulsification with human serum albumin followed by spray drying. Eur J Pharm Sci 2019; 139:105064. [PMID: 31491499 DOI: 10.1016/j.ejps.2019.105064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 08/08/2019] [Accepted: 09/02/2019] [Indexed: 10/26/2022]
Abstract
The goal of this study was to enhance the oral bioavailability of praziquantel through its conjugation with human serum albumin (HSA). Praziquantel-HSA particles were produced by spray drying an emulsion of an aqueous solution of HSA and a solution of praziquantel in oil. The particles were agglomerates of multiple smooth corrugated particles containing amorphous praziquantel nearly equivalent to the theoretical doses. The solubility of praziquantel in an aqueous medium was enhanced in both the produced particles and the physical mixture. In addition, the dissolution rate in an aqueous medium was enhanced in the case of particles, but not in a physical mixture. Thus, the inclusion of HSA by emulsification followed by spray drying appeared to contribute to the enhanced dissolution rate. In a pharmacokinetic study, the maximum plasma concentration (Cmax) and the area under the concentration-time curve (AUC) for the produced particles (HSA/praziquantel = 1/1 w/w) were approximately two times higher than the corresponding values for raw praziquantel. This increased oral bioavailability of the particles was considered to be due to the enhanced dissolution rate. This process for producing praziquantel-HSA particles could be useful in terms of improving the oral bioavailability of the other hydrophobic drugs.
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Affiliation(s)
- Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan; DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan.
| | - Kazuaki Taguchi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan; Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan; DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan; DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan
| | - Hakaru Seo
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan; DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan
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Kasahara K, Sone T, Nishi K, Shibata K, Araya T, Shirasaki H, Yoneda T, Kase K, Nishikawa S, Kimura H, Tambo Y. P1.04-50 Real World Efficacy of Pembrolizumab of as a 1st Line Treatment in Metastatic Non-Small Cell Lung Cancer with PD-L1 High Expression. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Itotani R, Matsumoto S, Udagawa H, Nishino K, Nakachi I, Miyamoto S, Hara S, Kuyama S, Ebi N, Tsubata Y, Shingyoji M, Kato T, Ohe Y, Nishi K, Hashimoto S, Goto K. A large scale prospective concordance study of oncogene driver detection between plasma- and tissue-based NGS analysis in advanced non-small cell lung cancer (NSCLC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ohno M, Matsuura H, Makiyama T, Nishi K, Iwasaki H, Matsuda S, Kimura T, Nishi E. P2560Metalloprotease nardilysin controls heart rate through the transcriptional regulation of ion channels critical for sinus automaticity. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Nardilysin (NRDC; N-arginine dibasic convertase) is a metalloprotease of the M16 family. We have demonstrated that NRDC in the extracellular space enhances ectodomain cleavage of multiple membrane proteins. We also reported that nuclear NRDC regulates transcription of several target genes as a transcriptional coregulator. These results indicated that NRDC is a protease having localization-dependent multiple functions. NRDC-deficient mice (Nrdc−/−) showed wide range of phenotypes such as hypomyelination, hypothermia, and bradycardia. In this study, we have explored a role of NRDC in the regulation of heart rate. (1) Pharmacological blocking of autonomic nervous system revealed that an intrinsic heart rate of Nrdc−/− was significantly reduced compared with that of wild-type mice. (2) In Nrdc−/− hearts, mRNA levels of Cav3.1 and HCN1/4, ion channels responsible for sinus automaticity, were significantly reduced. (3) Funny (If) current and T-type Ca current measured in the sinus node cells were markedly reduced in Nrdc−/− cells, indicating that the functions of Cav3.1 and HCN4 are impaired. (4) Gene knockdown of NRDC in primary rat ventricular myocyte led to the reduction of mRNA level of HCN4. (5) Chromatin immunoprecipitation-PCR analysis showed that NRDC binds to the promoter region of Cav3.1 and HCN4, suggesting the direct involvement of NRDC in transcriptional regulation of these ion channels. (6) Atrium-specific Nrdc−/− (Sarcolipin-Cre) showed mild bradycardia and reduced Cav3.1 mRNA expression. Together, our results indicated that NRDC in cardiomyocyte controls heart rate through the transcriptional regulation of ion channels critical for sinus automaticity.
Acknowledgement/Funding
KAKENHI (17K09575)
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Affiliation(s)
- M Ohno
- Shiga University of Medical Science, Otsu, Japan
| | - H Matsuura
- Shiga University of Medical Science, Otsu, Japan
| | - T Makiyama
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Nishi
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H Iwasaki
- Shiga University of Medical Science, Otsu, Japan
| | - S Matsuda
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - T Kimura
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - E Nishi
- Shiga University of Medical Science, Otsu, Japan
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Nishi K, Sakurama K, Kobashigawa Y, Morioka H, Udo N, Hashimoto M, Imoto S, Yamasaki K, Otagiri M. Interaction of Aripiprazole With Human α 1-Acid Glycoprotein. J Pharm Sci 2019; 108:3911-3916. [PMID: 31520646 DOI: 10.1016/j.xphs.2019.09.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/25/2019] [Accepted: 09/06/2019] [Indexed: 01/30/2023]
Abstract
We recently reported that aripiprazole binds strongly to human albumin. In continuing our investigations, we investigated the mechanism responsible for the binding and the related interactions of aripiprazole with α1-acid glycoprotein (AGP). The extrinsic Cotton effects for the binding of aripiprazole and its derivatives to AGP were generated, but the magnitudes of the induced circular dichroism intensities did not correlate with those for the binding affinities. It therefore appears that the binding mode of aripiprazole with AGP is somewhat complicated, compared with that of albumin. Isothermal titration calorimetry data obtained for the binding of aripiprazole with AGP were different from that for albumin systems in that the 3 driving reactions, entropy-driven, enthalpy-driven, and the entropy-enthalpy mixed type, were all found for the AGP system, but not albumin. Moreover, the weak binding mode of aripiprazole with the 2 proteins were supported by a molecular docking model analysis. The concentration of albumin in plasma is about 50 times higher than those of AGP, but AGP levels in plasma are increased by about 10 times under inflammatory disease. Therefore, the involvement of these 2 plasma proteins should be considered in more depth for understanding the pharmacokinetics of aripiprazole.
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Affiliation(s)
- Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
| | - Keiki Sakurama
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
| | - Yoshihiro Kobashigawa
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Oe-honmachi 5-1, Chuo-ku, Kumamoto 862-0082, Japan
| | - Hiroshi Morioka
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Oe-honmachi 5-1, Chuo-ku, Kumamoto 862-0082, Japan
| | - Nagiko Udo
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
| | - Mai Hashimoto
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
| | - Shuhei Imoto
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan; DDS Research Institute, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan.
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan; DDS Research Institute, Sojo University, Ikeda 4-22-1, Nishi-ku, Kumamoto 860-0082, Japan.
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Nishi K, Gondaira S, Okamoto M, Nebu T, Koiwa M, Ohtsuka H, Murai K, Matsuda K, Fujiki J, Iwano H, Nagahata H, Higuchi H. Effect of Mycoplasma bovis on expression of inflammatory cytokines and matrix metalloproteinases mRNA in bovine synovial cells. Vet Immunol Immunopathol 2019; 216:109920. [PMID: 31446205 DOI: 10.1016/j.vetimm.2019.109920] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 08/02/2019] [Accepted: 08/06/2019] [Indexed: 01/18/2023]
Abstract
Mycoplasma bovis causes chronic arthritis in calves. Mycoplasma arthritis shows severe inflammatory reactions in joints that is commonly treated with antibiotics and results in significant economic losses in the calf industry. A previous study showed that inflammatory cytokines and matrix metalloproteinases (MMPs) produced by synovial cells promote progression of the pathophysiology of bacterial arthritis. However, the mechanism underlying the pathogenesis of bovine Mycoplasma arthritis has not been fully clarified. In this study, we examined the immunologic response of bovine synovial tissue to M. bovis. We observed significant increases in expression of interleukin (IL)-1β, IL-6, IL-8, MMP-1, and MMP-3 mRNA in synovial tissue from Mycoplasma arthritis calves compared with tissues from normal calves. Expression of IL-6, IL-8, and MMP-1 mRNA was also induced in cultured synovial cells stimulated with M. bovis, but not expression of IL-1β and MMP-3 mRNA. In contrast, the culture supernatant of peripheral blood mononuclear cells stimulated with M. bovis induced marked increases in the expression of IL-1β, IL-6, IL-8, MMP-1, and MMP-3 mRNA in synovial cells. Our results indicate that inflammatory cytokines and MMPs produced by synovial cells play a key role in the pathogenesis of Mycoplasma arthritis. We suggest that interactions between synovial cells and mononuclear cells in the presence of M. bovis induce expression of these cytokines and MMPs in synovial cells, resulting in severe inflammatory reactions in the joints.
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Affiliation(s)
- Koji Nishi
- Animal Health Laboratory, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Satoshi Gondaira
- Animal Health Laboratory, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Mariko Okamoto
- Animal Health Laboratory, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Takanori Nebu
- Animal Health Laboratory, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Masateru Koiwa
- Department of Veterinary Internal Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Hiromichi Ohtsuka
- Department of Veterinary Internal Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Kiyokazu Murai
- Food Safety and Consumer Affairs Bureau, Ministry of Agriculture Forestry and Fisheries, Kasumigaseki, Tokyo, 100-8950, Japan
| | - Kazuya Matsuda
- Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Jumpei Fujiki
- Laboratory of Veterinary Biochemistry, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Hidetomo Iwano
- Laboratory of Veterinary Biochemistry, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Hajime Nagahata
- Animal Health Laboratory, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Hidetoshi Higuchi
- Animal Health Laboratory, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan.
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Matsusaka K, Ishima Y, Maeda H, Kinoshita R, Ichimizu S, Taguchi K, Giam Chuang VT, Nishi K, Yamasaki K, Otagiri M, Watanabe H, Maruyama T. α 1-Acid Glycoprotein Has the Potential to Serve as a Biomimetic Drug Delivery Carrier for Anticancer Agents. J Pharm Sci 2019; 108:3592-3598. [PMID: 31288036 DOI: 10.1016/j.xphs.2019.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 06/25/2019] [Accepted: 07/02/2019] [Indexed: 12/21/2022]
Abstract
Nanosize plasma proteins could be used as a biomimetic drug delivery system (DDS) for cancer treatment when loaded with anticancer drugs based on the fact that plasma proteins can serve as a source of nutrients for cancer cells. This prompted us to investigate the potential of α1-acid glycoprotein (AGP) for this role because it is a nanosize plasma protein and binds a variety of anticancer agents. Pharmacokinetic analyses indicated that AGP is distributed more extensively in tumor tissue than human serum albumin, which was already established as a cancer DDS carrier. AGP is possibly being incorporated into tumor cells via endocytosis pathways. Moreover, a synthetic AGP-derived peptide which possesses a high ability to form an α-helix, as deduced from the primary structure of AGP, was also taken up by the tumor cells. AGP loaded with anticancer agents, such as paclitaxel or nitric oxide, efficiently induced tumor cell death. These results suggest that AGP has the potential to be a novel DDS carrier for anticancer agents.
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Affiliation(s)
- Kotaro Matsusaka
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Yu Ishima
- Department of Pharmacokinetics and Biopharmaceutics, Institute of Biomedical Sciences, Tokushima University, 1-78-1, Sho-machi, Tokushima 770-8505, Japan
| | - Hitoshi Maeda
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Ryo Kinoshita
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Shota Ichimizu
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Kazuaki Taguchi
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Victor Tuan Giam Chuang
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, 1-22-4 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 1-22-4 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 1-22-4 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Hiroshi Watanabe
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Toru Maruyama
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan.
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Hayashi S, Yamamoto SI, Nishi K, Asano A, Koizumi T. Synthesis of network polymer emitters: tunable detection of chemicals by geometric design. Polym J 2019. [DOI: 10.1038/s41428-019-0216-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Nishi K, Suzuki M, Yamamoto N, Matsumoto A, Iwase Y, Yamasaki K, Otagiri M, Yumita N. Glutamine Deprivation Enhances Acetyl-CoA Carboxylase Inhibitor-induced Death of Human Pancreatic Cancer Cells. Anticancer Res 2019; 38:6683-6689. [PMID: 30504377 DOI: 10.21873/anticanres.13036] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 11/15/2018] [Accepted: 11/19/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND/AIM Acetyl-CoA carboxylase (ACC) is a rate-limiting enzyme in fatty acid synthesis. In this study, we investigated the effect of ACC inhibition on survival of pancreatic cancer cells. MATERIAL AND METHODS AsPC-1, BxPC-3 and PANC-1 were used as human pancreatic cancer cell lines. 5-(etradecyloxy)-2-furoic acid (TOFA) and bis-2-(5-phenylacetamido-1,2,4-thiadiazol-2-yl) ethyl sulfide (BPTES) were used as inhibitors of ACC and glutaminase (GLS) respectively. Apoptotic and live cells were distinguished by annexin-V staining. The activity of caspase-3 was evaluated by measuring the fluorescence intensity of the degradation product of the substrate, N-acetyl-Asp-Glu-Val-Asp-7-amido-4-trifluoromethylcoumarin. RESULTS TOFA increased the number of annexin V-positive cells and enhanced caspase-3 activity in AsPC-1 and BxPC-3, but not in PANC-1 cells. The number of PANC-1 cells increased after 48 h in Earle's balanced salt solution. Interestingly, proliferation of PANC-1 cells was drastically suppressed by glutamine deprivation, but not by inhibition of glycolysis. BPTES also induced cell death to the same extent as glutamine deprivation. In addition, TOFA induced cell death of PANC-1 cells, both in the presence of BPTES and with glutamine deprivation, suggesting that inhibition of glutaminolysis causes cell death and enhances the effect of TOFA in PANC-1 cells. CONCLUSION These findings suggest that glutaminolysis is important for the survival of pancreatic cancer cells showing tolerance to nutrient starvation such as PANC-1 cells, and use of a combination of inhibitors of ACC and GLS may be a new strategy for treatment of pancreatic cancer.
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Affiliation(s)
- Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan .,Laboratory of Drug Metabolism and Pharmacotherapeutics, Department of Clinical Pharmacy, Yokohama University of Pharmacy, Yokohama, Japan
| | - Mina Suzuki
- Laboratory of Drug Metabolism and Pharmacotherapeutics, Department of Clinical Pharmacy, Yokohama University of Pharmacy, Yokohama, Japan
| | - Noriko Yamamoto
- Laboratory of Drug Metabolism and Pharmacotherapeutics, Department of Clinical Pharmacy, Yokohama University of Pharmacy, Yokohama, Japan
| | - Ayako Matsumoto
- Laboratory of Drug Metabolism and Pharmacotherapeutics, Department of Clinical Pharmacy, Yokohama University of Pharmacy, Yokohama, Japan
| | - Yumiko Iwase
- Laboratory of Drug Metabolism and Pharmacotherapeutics, Department of Clinical Pharmacy, Yokohama University of Pharmacy, Yokohama, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan.,DDS Research Institute, Sojo University, Kumamoto, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto, Japan.,DDS Research Institute, Sojo University, Kumamoto, Japan
| | - Nagahiko Yumita
- Laboratory of Drug Metabolism and Pharmacotherapeutics, Department of Clinical Pharmacy, Yokohama University of Pharmacy, Yokohama, Japan
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Sakurama K, Nishi K, Imoto S, Hashimoto M, Komatsu T, Morita Y, Taguchi K, Otagiri M, Yamasaki K. Further Evidence Regarding the Important Role of Chlorine Atoms of Aripiprazole on Binding to the Site II Area of Human Albumin. J Pharm Sci 2018; 108:1890-1895. [PMID: 30537471 DOI: 10.1016/j.xphs.2018.11.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 11/29/2018] [Accepted: 11/30/2018] [Indexed: 10/27/2022]
Abstract
Previously, we reported on the high-affinity binding of aripiprazole (ARP), an antipsychotic drug, to human albumin and the role of the chlorine atom of ARP on this binding. In this study, we investigated the binding mode of ARP to human albumin in detail using ARP derivatives and several animal-derived albumins. ARP bound strongly to human and dog albumin. The circular dichroism (CD) spectra of ARP bound to human and dog albumin were also similar. Deschloro-ARP bound less strongly to all of the albumin species compared to ARP, and the shapes of CD spectra were similar for all albumin species. CD spectra of dimethyl-ARP, for which chlorine atoms were substituted methyl groups, were quite similar to that of deschloro-ARP. In displacement experiments, competitive binding was observed between ARP and deschloro-ARP. These results suggest that the chlorine atoms in ARP are involved in the binding modes of ARP for human and dog albumins, whereas ARP and deschloro-ARP appear to share the same binding region in site II. The aforementioned results imply that compounds having a chlorine atom bind more strongly to plasma proteins, resulting in a long blood retention time. Therefore, findings reported here may provide the basically useful data for drug design.
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Affiliation(s)
- Keiki Sakurama
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-Nishi-ku, Kumamoto 860-0082, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-Nishi-ku, Kumamoto 860-0082, Japan
| | - Shuhei Imoto
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-Nishi-ku, Kumamoto 860-0082, Japan; DDS Research Institute, Ikeda 4-22-Nishi-ku, Kumamoto 860-0082, Japan
| | - Mai Hashimoto
- DDS Research Institute, Ikeda 4-22-Nishi-ku, Kumamoto 860-0082, Japan
| | - Teruyuki Komatsu
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Yoshitsugu Morita
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Kazuaki Taguchi
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-Nishi-ku, Kumamoto 860-0082, Japan; Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-Nishi-ku, Kumamoto 860-0082, Japan; DDS Research Institute, Ikeda 4-22-Nishi-ku, Kumamoto 860-0082, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, Ikeda 4-22-Nishi-ku, Kumamoto 860-0082, Japan; DDS Research Institute, Ikeda 4-22-Nishi-ku, Kumamoto 860-0082, Japan.
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Gondaira S, Higuchi H, Iwano H, Nishi K, Nebu T, Nakajima K, Nagahata H. Innate immune response of bovine mammary epithelial cells to Mycoplasma bovis. J Vet Sci 2018; 19:79-87. [PMID: 28927255 PMCID: PMC5799403 DOI: 10.4142/jvs.2018.19.1.79] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 05/29/2017] [Accepted: 07/14/2017] [Indexed: 11/20/2022] Open
Abstract
Mycoplasma spp. are contagious bacteria, and mycoplasmal mastitis is a serious productivity problem on dairy farms. Bovine mammary epithelial cells (bMECs) have an important role in the elimination of pathogens, but the effect of Mycoplasma bovis on bMECs has not been fully described. To elucidate the immune response against intramammary infection by M. bovis, we undertook microarray analysis to examine and profile mRNA expression in bMECs after stimulation with M. bovis. We also compared the effects of M. bovis, Staphylococcus aureus, and Escherichia coli on immune-related mRNA expression in bMECs. Transcriptome analysis indicated a significant decrease in the level of mRNA-encoding lysine-specific demethylase 4D, suggesting that the immune response is suppressed by a decrease in histone demethylase activity. Interleukin (IL)-1β, IL-6, tumor necrosis factor alpha, toll-like receptor (TLR) 2, and TLR4 mRNA expression levels were significantly increased in bMECs stimulated with heat-killed M. bovis, but the expression levels were lower than those following stimulation by heat-killed S. aureus or E. coli. Our results suggest that M. bovis weakly affects mRNA expression in bMECs compared to the effects of E. coli or S. aureus. Moreover, live M. bovis may induce suppression of the immune response in bMECs.
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Affiliation(s)
- Satoshi Gondaira
- Animal Health Laboratory, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
| | - Hidetoshi Higuchi
- Animal Health Laboratory, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
| | - Hidetomo Iwano
- Department of Veterinary Biochemistry, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
| | - Koji Nishi
- Animal Health Laboratory, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
| | - Takanori Nebu
- Animal Health Laboratory, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
| | - Keiichi Nakajima
- National Agricultural Research Center for Hokkaido Region, National Agriculture and Food Research Organization, Sapporo 062-8555, Japan
| | - Hajime Nagahata
- Animal Health Laboratory, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
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Yamasaki K, Nishi K, Anraku M, Taguchi K, Maruyama T, Otagiri M. Metal-catalyzed oxidation of human serum albumin does not alter the interactive binding to the two principal drug binding sites. Biochem Biophys Rep 2018; 14:155-160. [PMID: 29872747 PMCID: PMC5986994 DOI: 10.1016/j.bbrep.2018.05.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 04/12/2018] [Accepted: 05/06/2018] [Indexed: 12/20/2022] Open
Abstract
It is well known that various physiological factors such as pH, endogenous substances or post-translational modifications can affect the conformational state of human serum albumin (HSA). In a previous study, we reported that both pH- and long chain fatty acid-induced conformational changes can alter the interactive binding of ligands to the two principal binding sites of HSA, namely, site I and site II. In the present study, the effect of metal-catalyzed oxidation (MCO) caused by ascorbate/oxygen/trace metals on HSA structure and the interactive binding between dansyl-L-asparagine (DNSA; a site I ligand) and ibuprofen (a site II ligand) at pH 6.5 was investigated. MCO was accompanied by a time-dependent increase in carbonyl content in HSA, suggesting that the HSA was being oxidized. In addition, The MCO of HSA was accompanied by a change in net charge to a more negative charge and a decrease in thermal stability. SDS-PAGE patterns and α-helical contents of the oxidized HSAs were similar to those of native HSA, indicating that the HSA had not been extensively structurally modified by MCO. MCO also caused a selective decrease in ibuprofen binding. In spite of the changes in the HSA structure and ligand that bind to site II, no change in the interactive binding between DNSA and ibuprofen was observed. These data indicated that amino acid residues in site II are preferentially oxidized by MCO, whereas the spatial relationship between sites I and II (e.g. the distance between sites), the flexibility or space of each binding site are not altered. The present findings provide insights into the structural characteristics of oxidized HSA, and drug binding and drug-drug interactions on oxidized HSA.
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Affiliation(s)
- Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Koji Nishi
- Department of Clinical Medicine, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Makoto Anraku
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Kazuaki Taguchi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Toru Maruyama
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5–1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
- DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
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Nishi K, Suzuki M, Yamamoto N, Iwase Y, Yumita N. Abstract 2323: Involvement of glutamine in tolerance of human pancreatic cancer cell to inhibition of fatty acid synthesis. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-2323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Pancreatic cancer (PC) is the fifth leading cause of cancer-related mortality in Japan. Although the standard chemotherapy regimens, FOLFIRINOX (fluorouracil, leucovorin, irinotecan and oxaliplatin), gemcitabine and nab-paclitaxel, are widely used to treat patients with advanced pancreatic cancer, their antitumor effects (progression and survival rates) are less potent against this cancer type than other solid tumors. Previously, we found that inhibition of acetyl-CoA carboxylase (ACC), a major rate-controlling enzyme of fatty acid synthetic pathway, suppressed the proliferation of PC cells. However, in this study, we found the tolerance to the inhibition in a part of PC cells. Therefore, we investigated the mechanism of the tolerance to ACC inhibition in PC cells. The human PC cell lines, AsPC-1, BxPC-3 and PANC-1 were obtained from the American Type Culture Collection. Live and apoptotic cell numbers were determined using the MUSE Annexin V and Dead Cell Kit according to the manufacturer's instructions. PANC-1 cells showed the tolerance to inhibition of fatty acid synthesis by ACC inhibitor, 5-(tetradecyloxy)-2-furoic acid (TOFA), whereas TOFA induced apoptosis in AsPC-1 and BxPC-3 cells. In addition, PANC-1 did not show autophagy even under the condition of fatty acid starvation. Next, we investigated whether PANC-1 has the tolerance to nutrient starvation in nutrient-depletion medium, Earle's Balanced Salt Solution (EBSS) and serum-free medium respectively. PANC-1 showed the survival even in such mediums, whereas AsPC-1 and BxPC-3 almost dead. This result suggests that the tolerance of fatty acid starvation of PANC-1 are related to that of nutrient starvation. Interestingly, proliferation of PANC-1 cultured in glutamine-depletion medium dramatically was suppressed, even though low glucose medium did not affect. BPTES, a selective inhibitor of glutaminase, also suppressed the proliferation and induced apoptosis in PANC-1, whereas there are little effects of 2-dexy-glucose, inhibitor of glycolysis, on them. These results suggest that the TCA cycle plays an important role on the tolerance to inhibition of fatty acid synthesis and nutrient starvation of PANC-1, and can be novel therapeutic target of PC cells which have the tolerance to nutrient starvation like PANC-1.
Citation Format: Koji Nishi, Mina Suzuki, Noriko Yamamoto, Yumiko Iwase, Nagahiko Yumita. Involvement of glutamine in tolerance of human pancreatic cancer cell to inhibition of fatty acid synthesis [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 2323.
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Affiliation(s)
- Koji Nishi
- Yokohama University of Pharmacy, Yokohama, Japan
| | - Mina Suzuki
- Yokohama University of Pharmacy, Yokohama, Japan
| | | | - Yumiko Iwase
- Yokohama University of Pharmacy, Yokohama, Japan
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Nakai S, Imaizumi T, Watanabe T, Iwase Y, Nishi K, Okudaira K, Yumita N. Photodynamically-induced Apoptosis Due to Ultraviolet A in the Presence of Lomefloxacin in Human Promyelocytic Leukemia Cells. Anticancer Res 2017; 37:6407-6413. [PMID: 29061826 DOI: 10.21873/anticanres.12094] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 09/20/2017] [Accepted: 09/22/2017] [Indexed: 11/10/2022]
Abstract
Lomefloxacin (LFX) is a widely used fluoroquinolone antimicrobial agent that plays an important role in the treatment of human and animal infections; however, it has been reported to cause phototoxicity. In this study, we investigated the induction of apoptosis due to ultraviolet A (UVA) light in the presence and absence of LFX in HL-60 human promyelocytic leukemia cells. HL-60 cells were exposed to UVA at an intensity of 1.1 mW/cm2 for 20 min in the presence and absence of LFX, and the induction of apoptosis was examined by analyzing cell morphology, DNA fragmentation, and caspase-3 activity. Cells treated with 100 μM LFX and UVA clearly showed membrane blebbing and cell shrinkage. The proportion of apoptotic cells was significantly higher in cells treated with both UVA and LFX than in those treated with UVA or LFX alone. In addition, DNA ladder formation and caspase-3 activation were observed in cells treated with both UVA and LFX. A significant reduction in the number of UVA-induced apoptotic cells and caspase-3 activation was observed when histidine was present, which suggested that photodynamically-generated singlet oxygen is an important mediator of apoptosis. These results indicate that the combination of UVA and LFX induces apoptosis in HL-60 cells.
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Affiliation(s)
- Shouko Nakai
- School of Pharmaceutical Sciences, Toho University, Funabashi, Japan
| | | | | | - Yumiko Iwase
- Yokohama University of Pharmacy, Yokohama, Japan
| | - Koji Nishi
- Yokohama University of Pharmacy, Yokohama, Japan
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Nishi K, Kato M, Sakurai S, Matsumoto A, Iwase Y, Yumita N. Enoxacin with UVA Irradiation Induces Apoptosis in the AsPC1 Human Pancreatic Cancer Cell Line Through ROS Generation. Anticancer Res 2017; 37:6211-6214. [PMID: 29061803 DOI: 10.21873/anticanres.12071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 08/25/2017] [Accepted: 08/29/2017] [Indexed: 11/10/2022]
Abstract
Pancreatic cancer is one of the deadliest human cancers. In the current study, we investigated the possibility of a new treatment strategy using a combination of the new fluoroquinolone, enoxacin, and mild ultraviolet A (UVA) irradiation. Enoxacin with UVA irradiation increased the number of annexin V-positive (apoptotic) pancreatic cancer cells in time- and concentration-dependent manners, whereas alone neither had these effects. In addition, enoxacin with UVA irradiation induced cleavage of poly (ADP-ribose) polymerase in AsPC1 human pancreatic cancer cells. Moreover, the singlet oxygen scavengers, histidine and sodium azide, and the hydroxyl radical scavenger, mannitol, significantly suppressed apoptosis induced by enoxacin and UVA irradiation, respectively. These results suggest that UVA irradiation activates enoxacin, after which activated enoxacin induces apoptosis of AsPC1 cells through generation of reactive oxygen species. Therefore, the combination of enoxacin with mild UVA irradiation may be a useful method for treating pancreatic cancer.
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Affiliation(s)
- Koji Nishi
- Laboratory of Drug Metabolism and Pharmacotherapeutics, Department of Clinical Pharmacy, Yokohama University of Pharmacy, Kanagawa, Japan
| | - Megumi Kato
- Laboratory of Drug Metabolism and Pharmacotherapeutics, Department of Clinical Pharmacy, Yokohama University of Pharmacy, Kanagawa, Japan
| | - Saki Sakurai
- Laboratory of Drug Metabolism and Pharmacotherapeutics, Department of Clinical Pharmacy, Yokohama University of Pharmacy, Kanagawa, Japan
| | - Ayako Matsumoto
- Laboratory of Drug Metabolism and Pharmacotherapeutics, Department of Clinical Pharmacy, Yokohama University of Pharmacy, Kanagawa, Japan
| | - Yumiko Iwase
- Laboratory of Drug Metabolism and Pharmacotherapeutics, Department of Clinical Pharmacy, Yokohama University of Pharmacy, Kanagawa, Japan
| | - Nagahiko Yumita
- Laboratory of Drug Metabolism and Pharmacotherapeutics, Department of Clinical Pharmacy, Yokohama University of Pharmacy, Kanagawa, Japan
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Matsushita S, Nishi K, Iwao Y, Ishima Y, Watanabe H, Taguchi K, Yamasaki K, Maruyama T, Otagiri M. Recombinant Human Serum Albumin Containing 3 Copies of Domain I, Has Significant in Vitro Antioxidative Capacity Compared to the Wild-Type. Biol Pharm Bull 2017; 40:1813-1817. [PMID: 28966257 DOI: 10.1248/bpb.b17-00528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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
Human serum albumin (HSA), the most abundant protein in serum, functions as carrier of drugs and contributes to maintaining serum colloid osmotic pressure. We report herein on the preparation of a genetic recombinant HSA, in which domains II and III were changed to domain I (triple domain I; TDI). Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) results indicated that the purity of the TDI was equivalent to that of the wild type (WT). Both far- and near-UV circular dichroism (CD) spectra of the TDI showed that its structural characteristics were similar to the WT. Ligand binding capacity was examined by an ultrafiltration method using 3-carboxy-4-methyl-5-propyl-2-furanpropanoic acid (CMPF) and ketoprofen as markers for site I and site II, respectively. The binding capacity of TDI for both ligands was lower than that for the wild type. TDI significantly suppressed the oxidation of dihydrorhodamine 123 (DRD) by H2O2 compared to the WT. Our current results suggest that TDI has great potential for further development as HSA a product having antioxidative functions.
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Affiliation(s)
- Sadaharu Matsushita
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Koji Nishi
- Department of Clinical Medicine, Yokohama University of Pharmacy
| | - Yasunori Iwao
- Pharmaceutical Engineering Laboratory, School of Pharmaceutical Sciences, University of Shizuoka
| | - Yu Ishima
- Department of Pharmacokinetics and Biopharmaceutics, Institute of Biomedical Sciences, Tokushima University
| | - Hiroshi Watanabe
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | | | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
| | - Toru Maruyama
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University.,DDS Research Institute, Sojo University
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