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Teruya K, Oguma A, Iwabuchi S, Nishizawa K, Doh-Ura K. Improvement of anti-prion efficacy with stearoxy conjugation of hydroxypropyl methylcellulose in prion-infected mice. Carbohydr Polym 2024; 337:122163. [PMID: 38710557 DOI: 10.1016/j.carbpol.2024.122163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 05/08/2024]
Abstract
Prion diseases are fatal transmissible neurodegenerative disorders. Among known anti-prions, hydroxypropyl methylcellulose compounds (HPMCs) are unique in their chemical structure and action. They have several excellent anti-prion properties but the effectiveness depends on the prion-infected mouse model. In the present study, we investigated the effects of stearoxy-modified HPMCs on prion-infected cells and mice. Stearoxy modification improved the anti-prion efficacy of HPMCs in prion-infected cells and significantly prolonged the incubation period in a lower HPMC-responding mouse model. However, stearoxy modification showed no improvement over nonmodified HPMCs in an HPMC-responding mouse model. These results offer a new line of inquiry for use with prion-infected mice that do not respond well to HPMCs.
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Affiliation(s)
- Kenta Teruya
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan.
| | - Ayumi Oguma
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan.
| | - Sara Iwabuchi
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan.
| | - Keiko Nishizawa
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan.
| | - Katsumi Doh-Ura
- Department of Neurochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan; Faculty of Medical Science & Welfare, Tohoku Bunka Gakuen University, Sendai, Miyagi, Japan.
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Liang YK, Cheng WT, Chen LC, Sheu MT, Lin HL. Development of a Swellable and Floating Gastroretentive Drug Delivery System ( sfGRDDS) of Ciprofloxacin Hydrochloride. Pharmaceutics 2023; 15:pharmaceutics15051428. [PMID: 37242670 DOI: 10.3390/pharmaceutics15051428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/27/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
Sangelose® (SGL) is a novel hydroxypropyl methylcellulose (HPMC) derivative that has been hydrophobically modified. Due to its high viscosity, SGL has the potential as a gel-forming and release-rate-controlled material for application in swellable and floating gastroretentive drug delivery systems (sfGRDDS). The aim of this study was to develop ciprofloxacin (CIP)-loaded sfGRDDS tablets comprised of SGL and HPMC in order to extend CIP exposure in the body and achieve optimal antibiotic treatment regimes. Results illustrated that SGL-HPMC-based sfGRDDS could swell to a diameter above 11 mm and showed a short floating lag time (<4 s) and long total floating time (>24 h) to prevent gastric emptying. In dissolution studies, CIP-loaded SGL-HPMC sfGRDDS demonstrated a specific biphasic release effect. Among the formulations, the SGL/type-K HPMC 15,000 cps (HPMC 15K) (50:50) group exhibited typical biphasic release profiles, with F4-CIP and F10-CIP individually releasing 72.36% and 64.14% CIP within 2 h dissolution, and sustaining release to 12 h. In pharmacokinetic studies, the SGL-HPMC-based sfGRDDS demonstrated higher Cmax (1.56-1.73 fold) and shorter Tmax (0.67 fold) than HPMC-based sfGRDDS. Furthermore, SGL 90L in GRDDS indicated an excellent biphasic release effect and a maximum elevation of relative bioavailability (3.87 fold). This study successfully combined SGL and HPMC to manufacture sfGRDDS that retain CIP in the stomach for an optimal duration while improving its pharmacokinetic characteristics. It was concluded that the SGL-HPMC-based sfGRDDS is a promising biphasic antibiotic delivery system that can both rapidly achieve the therapeutic antibiotic concentration and maintain the plasma antibiotic concentration for an extended period to maximize antibiotic exposure in the body.
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Affiliation(s)
- Yu-Kai Liang
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Wen-Ting Cheng
- Department of Biotechnology and Pharmaceutical Technology, Yuanpei University of Medical Technology, Hsinchu 30015, Taiwan
| | - Ling-Chun Chen
- Department of Biotechnology and Pharmaceutical Technology, Yuanpei University of Medical Technology, Hsinchu 30015, Taiwan
| | - Ming-Thau Sheu
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan
| | - Hong-Liang Lin
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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Terukina T, Tanaka J, Takayama Y, Osanai K, Kino S, Kanazawa T, Kondo H. Sangelose-based gels and films: effects of glycerol and α-cyclodextrin and their pharmaceutical application. Drug Dev Ind Pharm 2023; 49:75-83. [PMID: 36803493 DOI: 10.1080/03639045.2023.2182127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
OBJECTIVE To evaluate the possible application of Sangelose as an alternative to gelatin and carrageenan for the development of film substrates, and to examine the effect of glycerol and α-cyclodextrin (α-CyD) on the viscoelastic properties of Sangelose-based gels and the physical properties of the films. SIGNIFICANCE Sangelose-based gels/films can serve as a potential viable alternative to gelatin and carrageenan in pharmaceutical applications. METHODS Glycerol (a plasticizer) and α-CyD (a functional additive) were added to Sangelose, and gels and films were prepared. The gels were evaluated by dynamic viscoelasticity measurements, and the films were evaluated by scanning electron microscopy, Fourier-transform infrared spectroscopy, tensile tests, and contact angle measurements. Soft capsules were prepared using the formulated gels. RESULTS The strength of the gels was affected when only glycerol was added to Sangelose and α-CyD addition resulted in rigid gels. However, the addition of α-CyD with 10% glycerol weakened the gels. Tensile tests suggested that glycerol addition affected the formability and malleability of the films, while α-CyD addition affected their formability and elongation properties. The addition of 10% glycerol and α-CyD did not affect the flexibility of the films, suggesting that the malleability and strength were impacted. Soft capsules could not be prepared by adding only glycerol or α-CyD to Sangelose. Soft capsules with favorable disintegration behavior were obtained upon adding α-CyD to gels along with 10% glycerol. CONCLUSIONS Sangelose combined with a suitable amount of glycerol and α-CyD has preferable characteristics for film formation and may have potential applications in the pharmaceutical and health food sectors.
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Affiliation(s)
- Takayuki Terukina
- Department of Pharmaceutical Engineering and Drug Delivery Sciences, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Jun Tanaka
- Department of Pharmaceutical Engineering and Drug Delivery Sciences, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Yumi Takayama
- Department of Pharmaceutical Engineering and Drug Delivery Sciences, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Kaede Osanai
- Department of Pharmaceutical Engineering and Drug Delivery Sciences, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Shusuke Kino
- Department of Pharmaceutical Engineering and Drug Delivery Sciences, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Takanori Kanazawa
- Department of Pharmaceutical Engineering and Drug Delivery Sciences, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Hiromu Kondo
- Department of Pharmaceutical Engineering and Drug Delivery Sciences, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
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Pal A, Roy S, Kumar A, Mahmood S, Khodapanah N, Thomas S, Agatemor C, Ghosal K. Physicochemical Characterization, Molecular Docking, and In Vitro Dissolution of Glimepiride-Captisol Inclusion Complexes. ACS OMEGA 2020; 5:19968-19977. [PMID: 32832751 PMCID: PMC7439272 DOI: 10.1021/acsomega.0c01228] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 07/20/2020] [Indexed: 05/03/2023]
Abstract
This present study investigated the effect of Captisol, a chemically modified cyclodextrin, on the in vitro dissolution of glimepiride. We prepared glimepiride-Captisol complexes of different mass ratios (1:1, 1:2, and 1:3 w/w) by a physical mixing or freeze-drying technique, and found that complexation with Captisol enhanced the water solubility of glimepiride. Molecular docking and dynamic simulation predicted complex formation; at the same time, Fourier transform infrared spectroscopy, differential scanning calorimetry, powder X-ray diffractometry, and scanning electron microscope indicated molecular interactions that support complexation. We also found that an inclusion complex was better than a physical mixture in enhancing the complexation of glimepiride with Captisol and enhancing water solubility. Phase solubility study of the glimepiride-Captisol complex showed an AL-type profile, implying the formation of a 1:1 inclusion complex. The study also revealed that pH influenced the stability of the complex because the stability constant of the glimepiride-Captisol complex was higher in distilled water of pH ∼6.0 than in phosphate buffer of pH 7.2.
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Affiliation(s)
- Arpita Pal
- Dr.
B. C. Roy College of Pharmacy and AHS, Durgapur 713206, India
| | - Sudeep Roy
- Department
of Biomedical Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, 61600 Brno, Czech
Republic
| | - Akhil Kumar
- Department
of Biotechnology, CSIR-CIMAP Kukrail Picnic
Spot, Lucknow 226015, India
| | - Syed Mahmood
- Department
of Pharmaceutical Engineering, Faculty of Chemical and Process Engineering
Technology, University Malaysia Pahang, Gambang 26300, Malaysia
- Centre
of Excellence for Advanced Research in Fluid Flow (CARIFF), University Malaysia Pahang, Gambang 26300, Malaysia
| | - Nasrin Khodapanah
- Faculty of
Engineering Technology, University Malaysia
Pahang, Gambang 26300, Malaysia
| | - Sabu Thomas
- International
and Inter-University Center for Nanoscience and Nanotechnology (IIUCNN), Mahatma Gandhi University, Priyadarshini Hill, Kottayam 686560, Kerala, India
| | - Christian Agatemor
- Department
of Biomedical Engineering, School of Medicine, Johns Hopkins University, Baltimore 21231, United States
| | - Kajal Ghosal
- Dr.
B. C. Roy College of Pharmacy and AHS, Durgapur 713206, India
- kajal.
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Sertraline-Cyclodextrin Complex Orodispersible Sublingual Tablet: Optimization, Stability, and Pharmacokinetics. J Pharm Innov 2019. [DOI: 10.1007/s12247-019-09416-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Iohara D, Okubo M, Anraku M, Uramatsu S, Shimamoto T, Uekama K, Hirayama F. Hydrophobically Modified Polymer/α-Cyclodextrin Thermoresponsive Hydrogels for Use in Ocular Drug Delivery. Mol Pharm 2017; 14:2740-2748. [DOI: 10.1021/acs.molpharmaceut.7b00291] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Daisuke Iohara
- Faculty
of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Masanori Okubo
- Faculty
of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Makoto Anraku
- Faculty
of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Shunji Uramatsu
- Daido Chemical Corporation, 4-4-28 Takeshima,
Nishiyodogawa-ku, Osaka 555-0011, Japan
| | - Toshio Shimamoto
- Daido Chemical Corporation, 4-4-28 Takeshima,
Nishiyodogawa-ku, Osaka 555-0011, Japan
| | - Kaneto Uekama
- Faculty
of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Fumitoshi Hirayama
- Faculty
of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
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