Coordinated ASBT and EGFR Mechanisms for Optimized Liraglutide Nanoformulation Absorption in the GI Tract

Seho Kweon,1,2 Seong Jin Park,3 Ha Kyeong Lee,1 Seo Hee Kang,4 Kwan-Young Chang,4 Jeong Uk Choi,5 Jooho Park,6 Jung-Hyun Shim,7 Jin Woo Park,7 Youngro Byun1,3 1Department of Molecular Medicine and Biopharmaceutical Science, Graduate School of Convergence Science and Technology, Seoul National Univer...

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Main Authors: Kweon S, Park SJ, Lee HK, Kang SH, Chang KY, Choi JU, Park J, Shim JH, Park JW, Byun Y
Format: Article
Language:English
Published: Dove Medical Press 2024-03-01
Series:International Journal of Nanomedicine
Subjects:
Online Access:https://www.dovepress.com/coordinated-asbt-and-egfr-mechanisms-for-optimized-liraglutide-nanofor-peer-reviewed-fulltext-article-IJN
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author Kweon S
Park SJ
Lee HK
Kang SH
Chang KY
Choi JU
Park J
Shim JH
Park JW
Byun Y
author_facet Kweon S
Park SJ
Lee HK
Kang SH
Chang KY
Choi JU
Park J
Shim JH
Park JW
Byun Y
author_sort Kweon S
collection DOAJ
description Seho Kweon,1,2 Seong Jin Park,3 Ha Kyeong Lee,1 Seo Hee Kang,4 Kwan-Young Chang,4 Jeong Uk Choi,5 Jooho Park,6 Jung-Hyun Shim,7 Jin Woo Park,7 Youngro Byun1,3 1Department of Molecular Medicine and Biopharmaceutical Science, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea; 2College of Pharmacy, Chonnam National University, Gwangju, 61186, Republic of Korea; 3College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea; 4Global R&D Center, IcureBNP, Seoul, 06170, Republic of Korea; 5College of Pharmacy, Kyung Hee University, Seoul, 02447, Republic of Korea; 6Department of Biomedical & Health Science, Konkuk University, Chungju, 27478, Republic of Korea; 7College of Pharmacy and Biomedical and Healthcare Research Institute, Mokpo National University, Jeonnam, 58554, Republic of KoreaCorrespondence: Jin Woo Park; Youngro Byun, Tel +82 61 450 2704, Email jwpark@mokpo.ac.kr; yrbyun@snu.ac.krBackground: For maintenance therapy in type 2 diabetes, glucagon-like peptide-1 agonist (GLP-1A), which exhibits low cardiovascular risk and high efficacy, is a promising peptide therapeutic. However, developing an oral GLP-1A presents challenges due to the analog’s poor cellular permeability and gastrointestinal (GI) stability.Methods: To mitigate such limitations, an oral nanoformulation of liraglutide (LG) was designed and achieved by combining LG with bile acid derivatives using the nanoprecipitation method. This strategy allowed the bile acid moieties to localize at the nanoparticle surface, enhancing the binding affinity for apical sodium-dependent bile acid transporter (ASBT) and improving GI stability. The in vitro characteristics, cellular permeability, and absorption mechanisms of the LG nanoformulation (LG/TD-NF) were thoroughly investigated. Furthermore, the in vivo oral absorption in rats and the glucose-lowering effects in a diabetic (db/db) mouse model were evaluated.Results: The LG/TD-NF produced neutral nanoparticles with a diameter of 58.7 ± 4.3 nm and a zeta potential of 4.9 ± 0.4 mV. Notably, when exposed to simulated gastric fluid, 65.7 ± 3.6% of the LG/TD-NF remained stable over 120 min, while free LG was fully degraded. Relative to unformulated LG, the Caco-2 cellular permeability of the nanoformulation improved, measuring 10.9 ± 2.1 (× 10− 6 cm/s). The absorption mechanism prominently featured endocytosis simultaneously mediated by both ASBT and epidermal growth factor receptor (EGFR). The oral bioavailability of the LG/TD-NF was determined to be 3.62% at a dosage of 10 mg/kg, which is 45.3 times greater than that of free LG. In a diabetes model, LG/TD-NF at 10 mg/kg/day exhibited commendable glucose sensitivity and reduced HbA1c levels by 4.13% within 28 days, similar to that of subcutaneously administered LG at a dosage of 0.1 mg/kg/day.Conclusion: The oral LG/TD-NF promotes ASBT/EGFR-mediated transcytosis and assures cellular permeability within the GI tract. This method holds promise for the development of oral GLP-1A peptides as an alternative to injections, potentially enhancing patient adherence to maintenance therapy.Keywords: nanoformulation of GLP-1A, oral liraglutide, ASBT-mediated endocytosis, EGFR
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spelling doaj.art-eadf4be9544745e380238a75112618992024-03-24T16:49:44ZengDove Medical PressInternational Journal of Nanomedicine1178-20132024-03-01Volume 192973299291481Coordinated ASBT and EGFR Mechanisms for Optimized Liraglutide Nanoformulation Absorption in the GI TractKweon SPark SJLee HKKang SHChang KYChoi JUPark JShim JHPark JWByun YSeho Kweon,1,2 Seong Jin Park,3 Ha Kyeong Lee,1 Seo Hee Kang,4 Kwan-Young Chang,4 Jeong Uk Choi,5 Jooho Park,6 Jung-Hyun Shim,7 Jin Woo Park,7 Youngro Byun1,3 1Department of Molecular Medicine and Biopharmaceutical Science, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea; 2College of Pharmacy, Chonnam National University, Gwangju, 61186, Republic of Korea; 3College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea; 4Global R&D Center, IcureBNP, Seoul, 06170, Republic of Korea; 5College of Pharmacy, Kyung Hee University, Seoul, 02447, Republic of Korea; 6Department of Biomedical & Health Science, Konkuk University, Chungju, 27478, Republic of Korea; 7College of Pharmacy and Biomedical and Healthcare Research Institute, Mokpo National University, Jeonnam, 58554, Republic of KoreaCorrespondence: Jin Woo Park; Youngro Byun, Tel +82 61 450 2704, Email jwpark@mokpo.ac.kr; yrbyun@snu.ac.krBackground: For maintenance therapy in type 2 diabetes, glucagon-like peptide-1 agonist (GLP-1A), which exhibits low cardiovascular risk and high efficacy, is a promising peptide therapeutic. However, developing an oral GLP-1A presents challenges due to the analog’s poor cellular permeability and gastrointestinal (GI) stability.Methods: To mitigate such limitations, an oral nanoformulation of liraglutide (LG) was designed and achieved by combining LG with bile acid derivatives using the nanoprecipitation method. This strategy allowed the bile acid moieties to localize at the nanoparticle surface, enhancing the binding affinity for apical sodium-dependent bile acid transporter (ASBT) and improving GI stability. The in vitro characteristics, cellular permeability, and absorption mechanisms of the LG nanoformulation (LG/TD-NF) were thoroughly investigated. Furthermore, the in vivo oral absorption in rats and the glucose-lowering effects in a diabetic (db/db) mouse model were evaluated.Results: The LG/TD-NF produced neutral nanoparticles with a diameter of 58.7 ± 4.3 nm and a zeta potential of 4.9 ± 0.4 mV. Notably, when exposed to simulated gastric fluid, 65.7 ± 3.6% of the LG/TD-NF remained stable over 120 min, while free LG was fully degraded. Relative to unformulated LG, the Caco-2 cellular permeability of the nanoformulation improved, measuring 10.9 ± 2.1 (× 10− 6 cm/s). The absorption mechanism prominently featured endocytosis simultaneously mediated by both ASBT and epidermal growth factor receptor (EGFR). The oral bioavailability of the LG/TD-NF was determined to be 3.62% at a dosage of 10 mg/kg, which is 45.3 times greater than that of free LG. In a diabetes model, LG/TD-NF at 10 mg/kg/day exhibited commendable glucose sensitivity and reduced HbA1c levels by 4.13% within 28 days, similar to that of subcutaneously administered LG at a dosage of 0.1 mg/kg/day.Conclusion: The oral LG/TD-NF promotes ASBT/EGFR-mediated transcytosis and assures cellular permeability within the GI tract. This method holds promise for the development of oral GLP-1A peptides as an alternative to injections, potentially enhancing patient adherence to maintenance therapy.Keywords: nanoformulation of GLP-1A, oral liraglutide, ASBT-mediated endocytosis, EGFRhttps://www.dovepress.com/coordinated-asbt-and-egfr-mechanisms-for-optimized-liraglutide-nanofor-peer-reviewed-fulltext-article-IJNnanoformulation of glp-1aoral liraglutideasbt-mediated endocytosisegfr
spellingShingle Kweon S
Park SJ
Lee HK
Kang SH
Chang KY
Choi JU
Park J
Shim JH
Park JW
Byun Y
Coordinated ASBT and EGFR Mechanisms for Optimized Liraglutide Nanoformulation Absorption in the GI Tract
International Journal of Nanomedicine
nanoformulation of glp-1a
oral liraglutide
asbt-mediated endocytosis
egfr
title Coordinated ASBT and EGFR Mechanisms for Optimized Liraglutide Nanoformulation Absorption in the GI Tract
title_full Coordinated ASBT and EGFR Mechanisms for Optimized Liraglutide Nanoformulation Absorption in the GI Tract
title_fullStr Coordinated ASBT and EGFR Mechanisms for Optimized Liraglutide Nanoformulation Absorption in the GI Tract
title_full_unstemmed Coordinated ASBT and EGFR Mechanisms for Optimized Liraglutide Nanoformulation Absorption in the GI Tract
title_short Coordinated ASBT and EGFR Mechanisms for Optimized Liraglutide Nanoformulation Absorption in the GI Tract
title_sort coordinated asbt and egfr mechanisms for optimized liraglutide nanoformulation absorption in the gi tract
topic nanoformulation of glp-1a
oral liraglutide
asbt-mediated endocytosis
egfr
url https://www.dovepress.com/coordinated-asbt-and-egfr-mechanisms-for-optimized-liraglutide-nanofor-peer-reviewed-fulltext-article-IJN
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