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Enhanced oral absorption of teriparatide with therapeutic potential for management of osteoporosis. J Control Release 2022; 349:502-519. [PMID: 35835400 DOI: 10.1016/j.jconrel.2022.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/26/2022] [Accepted: 07/08/2022] [Indexed: 11/22/2022]
Abstract
In this study, a system for oral delivery of recombinant human parathyroid hormone [rhPTH(1-34); teriparatide (TRP)] was developed to enhance oral absorption and to demonstrate an equivalent therapeutic effect to that of subcutaneous (SC) TRP injection. The solid oral formulation of TRP was prepared by electrostatic complexation with l-lysine-linked deoxycholic acid (LDA) and deoxycholic acid (DA) at a molar ratio of 1:5:7 in the aqueous dispersion of non-ionic n-dodecyl-β-d-maltoside (DM) at a 1:15 weight ratio, followed by freeze-drying the dispersal, yielding TRP(1:5:7)-15. As expected, TRP(1:5:7)-15 showed a 414% increase in permeability across the Caco-2/HT29-MTX-E12 cell monolayer, resulting in a 13.0-fold greater oral bioavailability compared with free TRP. In addition, the intestinal transport mechanisms in the presence of specific inhibitors of clathrin-mediated endocytosis, macropinocytosis, and bile acid transporters revealed 44.4%, 28.7%, and 51.2% decreases in transport, respectively, confirming that these routes play crucial roles in the permeation of TRP in TRP(1:5:7)-15. Notably, this formulation showed similar activation of the release of cyclic adenosine monophosphate (cAMP) compared with TRP, suggesting equivalent efficacy in the parathyroid hormone receptor-adenylate cyclase system of osteosarcoma cells. Furthermore, oral TRP(1:5:7)-15 (equivalent to 0.4 mg/kg TRP) demonstrated increases in bone mineral density (36.9%) and trabecular thickness (31.3%) compared with untreated glucocorticoid-induced osteoporotic mice. Moreover, the elevated levels of biomarkers of bone formation, including osteocalcin, were also comparable with those after SC injection of TRP (0.02 mg/kg). These findings suggest that TRP(1:5:7)-15 can be used as an effective oral therapy for the management of osteoporosis.
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Han Y, Gao Z, Chen L, Kang L, Huang W, Jin M, Wang Q, Bae YH. Multifunctional oral delivery systems for enhanced bioavailability of therapeutic peptides/proteins. Acta Pharm Sin B 2019; 9:902-922. [PMID: 31649842 PMCID: PMC6804447 DOI: 10.1016/j.apsb.2019.01.004] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/28/2018] [Accepted: 11/28/2018] [Indexed: 02/07/2023] Open
Abstract
In last few years, therapeutic peptides/proteins are rapidly growing in drug market considering their higher efficiency and lower toxicity than chemical drugs. However, the administration of therapeutic peptides/proteins is mainly limited in parenteral approach. Oral therapy which was hampered by harsh gastrointestinal environment and poorly penetrating epithelial barriers often results in low bioavailability (less than 1%-2%). Therefore, delivery systems that are rationally designed to overcome these challenges in gastrointestinal tract and ameliorate the oral bioavailability of therapeutic peptides/proteins are seriously promising. In this review, we summarized various multifunctional delivery systems, including lipid-based particles, polysaccharide-based particles, inorganic particles, and synthetic multifunctional particles that achieved effective oral delivery of therapeutic peptides/proteins.
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Bashyal S, Seo JE, Keum T, Noh G, Choi YW, Lee S. Facilitated permeation of insulin across TR146 cells by cholic acid derivatives-modified elastic bilosomes. Int J Nanomedicine 2018; 13:5173-5186. [PMID: 30233179 PMCID: PMC6135218 DOI: 10.2147/ijn.s168310] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Buccal delivery of insulin is still a challenging issue for the researchers due to the presence of permeability barrier (buccal mucosa) in the buccal cavity. The main objective of this study was to investigate the safety, effectiveness, and potential of various liposomes containing different bile salts to improve the permeation of insulin across in vitro TR146 buccal cell layers. METHODS Elastic bilosomes containing soy lecithin and bile salt edge activators (sodium cholate [SC], sodium taurocholate [STC], sodium glycocholate [SGC], sodium deoxyglycocholate [SDGC], or sodium deoxytaurocholate [SDTC]) were fabricated by thin-film hydration method. The prepared liposomes were characterized, and in vitro permeation studies were performed. The fluorescein isothiocyanate-insulin-loaded elastic bilosomes were used to evaluate the quantitative and qualitative cellular uptake studies. RESULTS The prepared elastic bilosomes had a particle size and an entrapment efficiency of ~140-150 nm and 66%-78%, respectively. SDGC-lipo (SDGC-incorporated liposome) was observed to be the most superior with an enhancement ratio (ER) of 5.24 (P<0.001). The SC-incorporated liposome (SC-lipo) and SDTC-incorporated liposome (SDTC-lipo) also led to a significant enhancement with ERs of 3.20 and 3.10 (P<0.05), respectively, compared with insulin solution. These results were further supported by quantitative and qualitative cellular uptake studies performed employing fluorescence-activated cell sorting analysis and confocal microscopy, respectively. The relative median fluorescence intensity values of elastic bilosomes were counted in the order of SDGC-lipo > SC-lipo > SDTC-lipo > SGC-incorporated liposome > STC-incorporated liposome, and similarity in the permeability profile of the employed elastic bilosomes was noted. CONCLUSION This study presents the employment of various derivatives of cholic acid-loaded elastic bilosomes as a promising strategy to enhance the permeation of insulin through buccal route.
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Affiliation(s)
- Santosh Bashyal
- College of Pharmacy, Keimyung University, Daegu, Republic of Korea,
| | - Jo-Eun Seo
- College of Pharmacy, Keimyung University, Daegu, Republic of Korea,
| | - Taekwang Keum
- College of Pharmacy, Keimyung University, Daegu, Republic of Korea,
| | - Gyubin Noh
- College of Pharmacy, Keimyung University, Daegu, Republic of Korea,
| | - Young Wook Choi
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - Sangkil Lee
- College of Pharmacy, Keimyung University, Daegu, Republic of Korea,
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Paul PK, Nopparat J, Nuanplub M, Treetong A, Suedee R. Improvement in insulin absorption into gastrointestinal epithelial cells by using molecularly imprinted polymer nanoparticles: Microscopic evaluation and ultrastructure. Int J Pharm 2017; 530:279-290. [DOI: 10.1016/j.ijpharm.2017.07.071] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 07/22/2017] [Accepted: 07/24/2017] [Indexed: 01/15/2023]
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Chung SW, Kweon S, Lee BS, Kim GC, Mahmud F, Lee H, Cho YS, Choi JU, Jeon OC, Kim JW, Kim SW, Kim IS, Kim SY, Byun Y. Radiotherapy-assisted tumor selective metronomic oral chemotherapy. Int J Cancer 2017. [DOI: 10.1002/ijc.30842] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Seung Woo Chung
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University; Seoul South Korea
| | - Seho Kweon
- Department of Molecular Medicine and Biopharmaceutical Sciences; Graduate School of Convergent Science and Technology, Seoul National University; Seoul South Korea
| | - Beom Suk Lee
- Biomedical Research Institute, Korea Institute of Science and Technology; Seoul South Korea
- Department of Otolaryngology; Asan Medical Center, University of Ulsan College of Medicine; Seoul South Korea
| | - Gui Chul Kim
- Department of Otolaryngology; Asan Medical Center, University of Ulsan College of Medicine; Seoul South Korea
| | - Foyez Mahmud
- Department of Molecular Medicine and Biopharmaceutical Sciences; Graduate School of Convergent Science and Technology, Seoul National University; Seoul South Korea
| | - Hanul Lee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University; Seoul South Korea
| | - Young Seok Cho
- Department of Molecular Medicine and Biopharmaceutical Sciences; Graduate School of Convergent Science and Technology, Seoul National University; Seoul South Korea
| | - Jeong Uk Choi
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University; Seoul South Korea
| | | | - Ji Won Kim
- Department of Otolaryngology; Asan Medical Center, University of Ulsan College of Medicine; Seoul South Korea
| | - Seong Who Kim
- Department of Biochemistry and Molecular Biology; Asan Medical Center, College of Medicine, University of Ulsan; Seoul South Korea
| | - In-San Kim
- Biomedical Research Institute, Korea Institute of Science and Technology; Seoul South Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University; Seoul South Korea
| | - Sang Yoon Kim
- Department of Otolaryngology; Asan Medical Center, University of Ulsan College of Medicine; Seoul South Korea
| | - Youngro Byun
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University; Seoul South Korea
- Department of Molecular Medicine and Biopharmaceutical Sciences; Graduate School of Convergent Science and Technology, Seoul National University; Seoul South Korea
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Zupančič O, Bernkop-Schnürch A. Lipophilic peptide character – What oral barriers fear the most. J Control Release 2017; 255:242-257. [DOI: 10.1016/j.jconrel.2017.04.038] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 04/21/2017] [Accepted: 04/25/2017] [Indexed: 10/19/2022]
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8
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Zhang L, Xing X, Ding J, Zhao X, Qi G. Surfactin variants for intra-intestinal delivery of insulin. Eur J Pharm Biopharm 2017; 115:218-228. [PMID: 28302403 DOI: 10.1016/j.ejpb.2017.03.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 03/10/2017] [Accepted: 03/11/2017] [Indexed: 01/08/2023]
Abstract
Surfactin is a Bacillus-produced natural lipopeptide, which can overcome the epithelial cell barriers for orally delivering insulin, but its ability to promote uptake of insulin by the intestine need to be further improved for a higher oral bioavailability. Here, we designed and synthesized several surfactin variants to improve its ability for oral delivery of insulin. Firstly, we replaced Glu with Gln in surfactin for decreasing its negative charges, but found this replacement weakened its ability to orally delivery insulin. We further chemically synthesized surfactin variant by replacing its fatty acid chain (C15) with a shortened one (C14), and found this replacement did not influence its ability to orally deliver insulin. Lastly, we replaced its amino acids (Leu) with more hydrophobic ones (Ile), and found the replacement could significantly improve its ability to deliver insulin, with a maximal blood glucose decrease to 27.33% of the initial level and an insulin bioavailability of 18.25%. We also replaced its amino acids of Leu with Val, and Val with Ile, and found this replacement could also significantly improve its ability to deliver insulin with a maximal blood glucose decrease to 18.36% of the initial level and a high insulin bioavailability of 26.32% in diabetic mice. Further analysis by CD, we found the surfactin variants with more hydrophobic amino acid residuals significantly induced insulin from rigid (α-helix) to flexible structure (β-sheet and random coil), that is favorable for insulin to permeate across the intestine epithelial membrane. Collectively, surfactin variants with more hydrophobicity are very potential for delivery of insulin in the everyday control of blood glucose.
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Affiliation(s)
- Li Zhang
- College of Life Science and Technology, Biomedical Center, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaoying Xing
- College of Life Science and Technology, Biomedical Center, Huazhong Agricultural University, Wuhan 430070, China
| | - Jia Ding
- College of Life Science and Technology, Biomedical Center, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiuyun Zhao
- College of Life Science and Technology, Biomedical Center, Huazhong Agricultural University, Wuhan 430070, China
| | - Gaofu Qi
- College of Life Science and Technology, Biomedical Center, Huazhong Agricultural University, Wuhan 430070, China.
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Maher S, Mrsny RJ, Brayden DJ. Intestinal permeation enhancers for oral peptide delivery. Adv Drug Deliv Rev 2016; 106:277-319. [PMID: 27320643 DOI: 10.1016/j.addr.2016.06.005] [Citation(s) in RCA: 218] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 06/07/2016] [Accepted: 06/09/2016] [Indexed: 12/15/2022]
Abstract
Intestinal permeation enhancers (PEs) are one of the most widely tested strategies to improve oral delivery of therapeutic peptides. This article assesses the intestinal permeation enhancement action of over 250 PEs that have been tested in intestinal delivery models. In depth analysis of pre-clinical data is presented for PEs as components of proprietary delivery systems that have progressed to clinical trials. Given the importance of co-presentation of sufficiently high concentrations of PE and peptide at the small intestinal epithelium, there is an emphasis on studies where PEs have been formulated with poorly permeable molecules in solid dosage forms and lipoidal dispersions.
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Zhang L, Gao Z, Zhao X, Qi G. A natural lipopeptide of surfactin for oral delivery of insulin. Drug Deliv 2016; 23:2084-93. [DOI: 10.3109/10717544.2016.1153745] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Nurunnabi M, Khatun Z, Revuri V, Nafiujjaman M, Cha S, Cho S, Moo Huh K, Lee YK. Design and strategies for bile acid mediated therapy and imaging. RSC Adv 2016. [DOI: 10.1039/c6ra10978k] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Bioinspired materials have received substantial attention across biomedical, biological, and drug delivery research because of their high biocompatibility and lower toxicity compared with synthetic materials.
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Affiliation(s)
- Md Nurunnabi
- Department of Polymer Science & Engineering
- Chungnam National University
- Daejeon 305-764
- Republic of Korea
- Department of Chemical & Biological Engineering
| | - Zehedina Khatun
- Department of Polymer Science & Engineering
- Chungnam National University
- Daejeon 305-764
- Republic of Korea
| | - Vishnu Revuri
- Department of Green Bioengineering
- Korea National University of Transportation
- Chungju 380-702
- Republic of Korea
| | - Md Nafiujjaman
- Department of Green Bioengineering
- Korea National University of Transportation
- Chungju 380-702
- Republic of Korea
| | - Seungbin Cha
- Department of Biomedical Chemistry
- Konkuk University
- Chungju-si
- Republic of Korea
| | - Sungpil Cho
- KB Biomed Inc
- Chungju 380-702
- Republic of Korea
| | - Kang Moo Huh
- Department of Polymer Science & Engineering
- Chungnam National University
- Daejeon 305-764
- Republic of Korea
| | - Yong-kyu Lee
- Department of Chemical & Biological Engineering
- Korea National University of Transportation
- Chungju 380-702
- Republic of Korea
- Department of Green Bioengineering
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Mahmud F, Jeon OC, Al-Hilal TA, Kweon S, Yang VC, Lee DS, Byun Y. Absorption Mechanism of a Physical Complex of Monomeric Insulin and Deoxycholyl-l-lysyl-methylester in the Small Intestine. Mol Pharm 2015; 12:1911-20. [PMID: 25892399 DOI: 10.1021/mp500626a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Currently, oral administration of insulin still remains the best option to avoid the burden of repeated subcutaneous injections and to improve its pharmacokinetics. The objective of the present investigation was to demonstrate the absorption mechanism of insulin in the physical complexation of deoxycholyl-l-lysyl-methylester (DCK) for oral delivery. The oral insulin/DCK complex was prepared by making a physical complex of insulin aspart with DCK through ion-pair interaction in water. For the cellular uptake study, fluorescein-labeled insulin or DCK were prepared according to a standard protocol and applied to Caco-2 or MDCK cell lines. For the PK/PD studies, we performed intrajejunal administration of different formulation of insulin/DCK complex to diabetic rats. The resulting insulin and DCK complex demonstrated greatly enhanced lipophilicity as well as increased permeation across Caco-2 monolayers. The immunofluorescence study revealed the distribution of the complex in the cytoplasm of Caco-2 cells. Moreover, in the apical sodium bile acid transporter (ASBT) transfected MDCK, the insulin/DCK complex showed interaction with ASBT, and also demonstrated absorption through passive diffusion. We could not find that any evidence of endocytosis in relation to the uptake of insulin complex in vitro. In the rat intestine model, the highest absorption of insulin complex was observed in the jejunum at 1 h and then in the ileum at 2-4 h. In PK/PD study, the complex showed a similar PK profile to that of SC insulin. Overall, the study showed that the effect of DCK on enhancing the absorption of insulin resulted from transcellular processes as well as bile acid transporter activity.
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Affiliation(s)
- Foyez Mahmud
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea
| | - Ok-Cheol Jeon
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea
| | - Taslim A Al-Hilal
- ‡Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Seho Kweon
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea
| | - Victor C Yang
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea.,§Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109-1065, United States
| | - Dong Soo Lee
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea.,∥Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul 110-744, South Korea
| | - Youngro Byun
- †Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, South Korea.,‡Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
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Yu F, Li Y, Liu CS, Chen Q, Wang GH, Guo W, Wu XE, Li DH, Wu WD, Chen XD. Enteric-coated capsules filled with mono-disperse micro-particles containing PLGA-lipid-PEG nanoparticles for oral delivery of insulin. Int J Pharm 2015; 484:181-91. [DOI: 10.1016/j.ijpharm.2015.02.055] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 02/16/2015] [Accepted: 02/23/2015] [Indexed: 01/09/2023]
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Alam F, Al-Hilal TA, Chung SW, Seo D, Mahmud F, Kim HS, Kim SY, Byun Y. Oral delivery of a potent anti-angiogenic heparin conjugate by chemical conjugation and physical complexation using deoxycholic acid. Biomaterials 2014; 35:6543-52. [PMID: 24816287 DOI: 10.1016/j.biomaterials.2014.04.050] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 04/13/2014] [Indexed: 12/31/2022]
Abstract
Angiogenesis, the formation of new blood vessels, plays a pivotal role in tumor progression and for this reason angiogenesis inhibitors are an important class of therapeutics for cancer treatment. Heparin-based angiogenesis inhibitors have been newly developed as one of such classes of therapeutics and possess a great promise in the clinical context. Taurocholate conjugated low molecular weight heparin derivative (LHT7) has been proven to be a potent, multi-targeting angiogenesis inhibitor against broad-spectrum angiogenic tumors. However, major limitations of LHT7 are its poor oral bioavailability, short half-life, and frequent parenteral dosing schedule. Addressing these issues, we have developed an oral formulation of LHT7 by chemically conjugating LHT7 with a tetrameric deoxycholic acid named LHTD4, and then physically complexing it with deoxycholylethylamine (DCK). The resulting LHTD4/DCK complex showed significantly enhanced oral bioavailability (34.3 ± 2.89%) and prolonged the mean residence time (7.5 ± 0.5 h). The LHTD4/DCK complex was mostly absorbed in the intestine by transcellular pathway via its interaction with apical sodium bile acid transporter. In vitro, the VEGF-induced sprouting of endothelial spheroids was significantly blocked by LHTD4. LHTD4/DCK complex significantly regressed the total vessel fractions of tumor (77.2 ± 3.9%), as analyzed by X-ray microCT angiography, thereby inhibiting tumor growth in vivo. Using the oral route of administration, we showed that LHTD4/DCK complex could be effective and chronically administered as angiogenesis inhibitor.
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Affiliation(s)
- Farzana Alam
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Taslim A Al-Hilal
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Seung Woo Chung
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Donghyun Seo
- Department of Biomedical Engineering, Computer and Biomedical Engineering, Medical Industry Techno Tower R307, Yonsei University, Wonju, Gangwon 220-710, South Korea
| | - Foyez Mahmud
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Han Sung Kim
- Department of Biomedical Engineering, Computer and Biomedical Engineering, Medical Industry Techno Tower R307, Yonsei University, Wonju, Gangwon 220-710, South Korea
| | - Sang Yoon Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 136-791, South Korea; Department of Otolaryngology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 138-736, South Korea
| | - Youngro Byun
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea; Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea.
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Ionic complex of risedronate with positively charged deoxycholic acid derivative: evaluation of physicochemical properties and enhancement of intestinal absorption in rats. Arch Pharm Res 2013; 37:1560-9. [PMID: 24254935 DOI: 10.1007/s12272-013-0297-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Accepted: 11/11/2013] [Indexed: 01/27/2023]
Abstract
Risedronate is widely used clinically to treat osteoporosis, Paget's disease, hypercalcemia, bone metastasis, and multiple myeloma. However, its oral efficacy is restricted due to its low bioavailability and severe gastrointestinal adverse effects. This study was designed to evaluate the effect of deoxycholic acid derivatives on the permeability and oral bioavailability of risedronate by increasing its lipophilicity and affinity to bile transporters. We synthesized two bile acid derivatives, N(α)-deoxycholyl-L-lysyl-methylester (DCK) and N(α)-deoxycholyl-L-lysyl-hydroxide (HDCK) as oral absorption enhancers. After ionic complex formation with the bile acid derivatives, the complexes were characterized by powder X-ray diffraction. Their artificial membrane permeabilities and bioavailabilities in rats were investigated in comparison with pure risedronate. Complex formation with DCK or HDCK demonstrated that risedronate existed in an amorphous form in the complex. A physical complex of risedronate with DCK enhanced the apparent membrane permeability of risedronate significantly but pure risedronate was not permeable. An in vivo study revealed that the C max and AUClast of risedronate/DCK (1:2) complex were 1.92- and 2.64-fold higher than those of pure risedronate, respectively. Thus, the risedronate/DCK complex can improve the oral absorption of risedronate and patient compliance by reducing dose frequency and adverse reactions.
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Park JW, Hwang SR, Jeon OC, Moon HT, Byun Y. Enhanced Oral Absorption of Ibandronate via Complex Formation with Bile Acid Derivative. J Pharm Sci 2013; 102:341-6. [DOI: 10.1002/jps.23413] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 11/06/2012] [Accepted: 11/16/2012] [Indexed: 11/07/2022]
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Jeon OC, Hwang SR, Al-Hilal TA, Park JW, Moon HT, Lee S, Park JH, Byun Y. Oral delivery of ionic complex of ceftriaxone with bile acid derivative in non-human primates. Pharm Res 2013; 30:959-67. [PMID: 23292220 DOI: 10.1007/s11095-012-0932-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Accepted: 11/05/2012] [Indexed: 11/30/2022]
Abstract
PURPOSE Since the absorption of ceftriaxone (CTO) in the intestine is restricted by its natural physiological characteristics, we developed a series of small synthetic compounds derived from bile acids to promote the absorption of CTO in the gastrointestinal tract. METHODS Several bile acid derivatives were screened by measuring water solubility and partition coefficient of their complexes with CTO. The pharmacokinetic parameters of the selected CTO/HDCK ionic complex in monkeys were evaluated. The absorption pathway of CTO/HDCK complex was evaluated using Caco-2 cells and MDCK cells transfected with ASBT gene. RESULTS HDCK enhanced the apparent membrane permeability of CTO 5.8-fold in the parallel artificial membrane permeability assay model. CTO/HDCK complex permeated Caco-2 cell via transcellular pathway, and interaction of the HDCK complex with ASBT was important to enhance uptake. When CTO/HDCK (equivalent to 50 mg/kg of ceftriaxone) formulated with lactose, poloxamer 407 and Labrasol was orally administered to monkeys, its maximum plasma concentration was 19.5 ± 1.8 μg/ml and oral bioavailability 28.5 ± 3.1%. CONCLUSIONS The CTO/HDCK formulation could enhance oral bioavailability of CTO in non-human primates. This oral formulation could be an alternative to injectable CTO with enhanced clinical effects.
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Affiliation(s)
- Ok-Cheol Jeon
- Department of Polymer Science and Engineering, Sungkyunkwan University, Suwon, 440-746, South Korea
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Sonaje K, Chuang EY, Lin KJ, Yen TC, Su FY, Tseng MT, Sung HW. Opening of epithelial tight junctions and enhancement of paracellular permeation by chitosan: microscopic, ultrastructural, and computed-tomographic observations. Mol Pharm 2012; 9:1271-9. [PMID: 22462641 DOI: 10.1021/mp200572t] [Citation(s) in RCA: 160] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This study investigates the effects of chitosan (CS) on the opening of epithelial tight junctions (TJs) and paracellular transport at microscopic, ultrastructural, and computed-tomographic levels in Caco-2 cell monolayers and animal models. Using immunofluorescence staining, CS treatment was observed to be associated with the translocation of JAM-1 (a trans-membrane TJ protein), resulting in the disruption of TJs; the removal of CS was accompanied by the recovery of JAM-1. Ultrastructural observations by TEM reveal that CS treatment slightly opened the apical intercellular space, allowing lanthanum (an electron-dense tracer) to stain the intercellular surface immediately beneath the TJs, suggesting the opening of TJs. Following the removal of CS, the TJs were completely recovered. Similar microscopic and ultrastructural findings were obtained in animal studies. CS nanoparticles were prepared as an insulin carrier. The in vivo fluorescence-microscopic results demonstrate that insulin could be absorbed into the systemic circulation, while most CS was retained in the microvilli scaffolds. These observations were verified in a biodistribution study following the oral administration of isotope-labeled nanoparticles by single-photon emission computed tomography. Above results reveal that CS is a safe permeation enhancer and is an effective carrier for oral protein delivery.
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Affiliation(s)
- Kiran Sonaje
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan, ROC
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Zhao L, Ding J, He P, Xiao C, Tang Z, Zhuang X, Chen X. An efficient pH sensitive oral insulin delivery system enhanced by deoxycholic acid. J Control Release 2011; 152 Suppl 1:e184-6. [DOI: 10.1016/j.jconrel.2011.08.078] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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