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Maeng J, Lee K. Systemic and brain delivery of antidiabetic peptides through nasal administration using cell-penetrating peptides. Front Pharmacol 2022; 13:1068495. [PMID: 36452220 PMCID: PMC9703138 DOI: 10.3389/fphar.2022.1068495] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 11/01/2022] [Indexed: 08/27/2023] Open
Abstract
The intranasal route has emerged as a promising strategy that can direct delivery of drugs into the systemic circulation because the high-vascularized nasal cavity, among other advantages, avoids the hepatic first-pass metabolism. The nose-to-brain pathway provides a non-invasive alternative to other routes for the delivery of macromolecular therapeutics. A great variety of methodologies has been developed to enhance the efficiency of transepithelial translocation of macromolecules. Among these, the use of cell-penetrating peptides (CPPs), short protein transduction domains (PTDs) that facilitate the intracellular transport of various bioactive molecules, has become an area of extensive research in the intranasal delivery of peptides and proteins either to systemic or to brain compartments. Some CPPs have been applied for the delivery of peptide antidiabetics, including insulin and exendin-4, for treating diabetes and Alzheimer's disease. This review highlights the current status of CPP-driven intranasal delivery of peptide drugs and its potential applicability as a universal vehicle in the nasal drug delivery.
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Affiliation(s)
| | - Kyunglim Lee
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, South Korea
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Tunsirikongkon A, Pyo YC, Kim DH, Lee SE, Park JS. Optimization of Polyarginine-Conjugated PEG Lipid Grafted Proliposome Formulation for Enhanced Cellular Association of a Protein Drug. Pharmaceutics 2019; 11:pharmaceutics11060272. [PMID: 31212607 PMCID: PMC6630419 DOI: 10.3390/pharmaceutics11060272] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/04/2019] [Accepted: 06/07/2019] [Indexed: 02/04/2023] Open
Abstract
The purpose of this study was to develop an oral proliposomal powder of protein using poly-l-arginine-conjugated 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-poly(ethylene glycol) (DSPE-PEG) (PLD) for enhancing cellular association upon reconstitution and to compare its effects with a non-grafted and PEGylated formulation. Cationic proliposome (CATL), PLD-grafted CATL (PLD-CATL), PEGylated CATL (PEG CATL), and PLD grafted-PEG CATL (PLD-PEG CATL) were prepared and compared. Successful conjugation between poly-l-arginine and DSPE-PEG was confirmed by 1H NMR and FT-IR. PLD was successfully grafted onto the proliposomal powder during the slurry process. Although reconstituted liposomal sizes of CATL and PLD-CATL were increased by agglomeration, PEGylation reduced the agglomeration and increased the encapsulation. The viabilities of cells treated with both CATL and PLD-CATL formulations were low but increased following PEGylation. With regard to cellular association, PLD-CATL enhanced cellular association/uptake more rapidly than did CATL. Upon PEGylation, PEG CATL showed a lower level of cellular association/uptake compared with CATL while PLD-PEG CATL did not exhibit the rapid cellular association/uptake as seen with PLD-CATL. However, PLD-PEG CATL still enhanced the higher cellular association/uptake than PEG CATL did without PLD. In conclusion, proliposomes with PLD could accelerate cellular association/uptake but also caused high cellular toxicity. PEGylation reduced cellular toxicity and also changed the cellular association pattern of the PLD formulation.
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Affiliation(s)
- Amolnat Tunsirikongkon
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea.
- Division of Pharmaceutical Sciences, Faculty of Pharmacy, Thammasat University, Rangsit Center, Pathumthani 12120, Thailand.
| | - Yong-Chul Pyo
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea.
| | - Dong-Hyun Kim
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea.
| | - Sang-Eun Lee
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea.
| | - Jeong-Sook Park
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea.
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Niu Z, Samaridou E, Jaumain E, Coëne J, Ullio G, Shrestha N, Garcia J, Durán-Lobato M, Tovar S, Santander-Ortega MJ, Lozano MV, Arroyo-Jimenez MM, Ramos-Membrive R, Peñuelas I, Mabondzo A, Préat V, Teixidó M, Giralt E, Alonso MJ. PEG-PGA enveloped octaarginine-peptide nanocomplexes: An oral peptide delivery strategy. J Control Release 2018. [PMID: 29518466 DOI: 10.1016/j.jconrel.2018.03.004] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The objective of this work was the development of a new drug nanocarrier intended to overcome the barriers associated to the oral modality of administration and to assess its value for the systemic or local delivery of peptides. The nanocarrier was rationally designed taking into account the nature of the intestinal barriers and was loaded with insulin, which was selected as a model peptide. The nanocarrier consisted of a complex between insulin and a hydrophobically-modified cell penetrating peptide (CPP), enveloped by a protecting polymer. The selected CPP was octaarginine (r8), chemically conjugated with cholesterol (Chol) or lauric acid (C12), whereas the protecting polymer was poly (glutamic acid)-poly (ethylene glycol) (PGA-PEG). This enveloping material was intended to preserve the stability of the nanocomplex in the intestinal medium and facilitate its diffusion across the intestinal mucus. The enveloped nanocomplexes (ENCPs) exhibited a number of key features, namely (i) a unimodal size distribution with a mean size of 200 nm and a neutral zeta potential, (ii) the capacity to associate insulin (~100% association efficiency) and protect it from degradation in simulated intestinal fluids, (iii) the ability to diffuse through intestinal mucus and, most importantly, (iv) the capacity to interact with the Caco-2 model epithelium, resulting in a massive insulin cell uptake (47.59 ± 5.79%). This enhanced accumulation of insulin at the epithelial level was not translated into an enhanced insulin transport. In fact, only 2% of insulin was transported across the monolayer, and this was correlated with a moderate response of insulin following oral administration to healthy rats. Despite of this, the accumulation of the insulin-loaded nanocarriers in the intestinal mucosa could be verified in vivo upon their labeling with 99mTc. Overall, these data underline the capacity of the nanocarriers to overcome substantial barriers associated to the oral modality of administration and to facilitate the accumulation of the associated peptide at the intestinal level.
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Affiliation(s)
- Zhigao Niu
- Center for Research in Molecular Medicine and Chronic Diseases, IDIS research Institute, Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Eleni Samaridou
- Center for Research in Molecular Medicine and Chronic Diseases, IDIS research Institute, Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Emilie Jaumain
- Service de Pharmacologie et d'Immunoanalyse, IBITECS, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - Julie Coëne
- Service de Pharmacologie et d'Immunoanalyse, IBITECS, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - Gabriela Ullio
- Service de Pharmacologie et d'Immunoanalyse, IBITECS, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - Neha Shrestha
- Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, Université Catholique de Louvain, B-1200 Brussels, Belgium
| | - Josep Garcia
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute for Science and Technology (BIST), 08028 Barcelona, Spain
| | - Matilde Durán-Lobato
- Center for Research in Molecular Medicine and Chronic Diseases, IDIS research Institute, Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Sulay Tovar
- Biomedical Research Group, Center for Research in Molecular Medicine and Chronic Diseases, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Manuel J Santander-Ortega
- Cellular Neuroanatomy, Molecular Chemistry of Central Nervous System Group, Faculty of Pharmacy, University of Castilla-La Mancha, 02071 Albacete, Spain; Regional Centre of Biomedical Research (CRIB), University of Castilla-La Mancha, Albacete, Spain
| | - M Victoria Lozano
- Cellular Neuroanatomy, Molecular Chemistry of Central Nervous System Group, Faculty of Pharmacy, University of Castilla-La Mancha, 02071 Albacete, Spain; Regional Centre of Biomedical Research (CRIB), University of Castilla-La Mancha, Albacete, Spain
| | - M Mar Arroyo-Jimenez
- Cellular Neuroanatomy, Molecular Chemistry of Central Nervous System Group, Faculty of Pharmacy, University of Castilla-La Mancha, 02071 Albacete, Spain; Regional Centre of Biomedical Research (CRIB), University of Castilla-La Mancha, Albacete, Spain
| | - Rocío Ramos-Membrive
- Radiopharmacy Unit, Department of Nuclear Medicine, Clínica Universidad de Navarra, University Clinic of Navarra, 31008 Pamplona, Spain
| | - Iván Peñuelas
- Radiopharmacy Unit, Department of Nuclear Medicine, Clínica Universidad de Navarra, University Clinic of Navarra, 31008 Pamplona, Spain
| | - Aloïse Mabondzo
- Service de Pharmacologie et d'Immunoanalyse, IBITECS, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - Véronique Préat
- Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, Université Catholique de Louvain, B-1200 Brussels, Belgium
| | - Meritxell Teixidó
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute for Science and Technology (BIST), 08028 Barcelona, Spain
| | - Ernest Giralt
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute for Science and Technology (BIST), 08028 Barcelona, Spain
| | - María José Alonso
- Center for Research in Molecular Medicine and Chronic Diseases, IDIS research Institute, Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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Wang Y, Zhao Y, Cui Y, Zhao Q, Zhang Q, Musetti S, Kinghorn KA, Wang S. Overcoming multiple gastrointestinal barriers by bilayer modified hollow mesoporous silica nanocarriers. Acta Biomater 2018; 65:405-416. [PMID: 29037897 DOI: 10.1016/j.actbio.2017.10.025] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 10/10/2017] [Accepted: 10/13/2017] [Indexed: 11/24/2022]
Abstract
Oral administration of nanocarriers remains a significant challenge in the pharmaceutical sciences. The nanocarriers must efficiently overcome multiple gastrointestinal barriers including the harsh gastrointestinal environment, the mucosal layer, and the epithelium. Neutral hydrophilic surfaces are reportedly necessary for mucus permeation, but hydrophobic and cationic surfaces are important for efficient epithelial absorption. To accommodate these conflicting surface property requirements, we developed a strategy to modify nanocarrier surfaces with cationic cell-penetrating peptides (CPP) concealed by a hydrophilic succinylated casein (SCN) layer. SCN is a mucus-inert natural material specifically degraded in the intestine, thus protecting nanocarriers from the harsh gastric environment, facilitating their mucus permeation, and inducing exposure of CPPs after degradation for further effective transepithelial transport. Quantum dots doped hollow silica nanoparticles (HSQN) with a diameter around 180 nm was used as the nanocarrier and demonstrated as high as 50% loading efficacy of paclitaxel, a model drug with poor solubility and permeability. The dual layer modification strategy prevented premature drug leakage in stomach and maintained high mucus permeation (the trajectory spanned 9-fold larger area than single CPP modification). After intestinal degradation of SCN by trypsin, these nanocarriers exhibited strong interaction with epithelial membranes and a 5-fold increase in cellular uptake. Significant transepithelial transport and intestinal distribution were also observed for this dual-modified formulation. A pharmacokinetics study on the paclitaxel-loaded nanocarrier found 40% absolute bioavailability and 7.8-fold higher AUC compared to oral Taxol®. Compared with single CPP modified nanocarriers, our formulation showed increased in vivo efficacy and tumor accumulation of the model drug with negligible intestinal toxicity. In summary, sequential modification with CPP and SCN layers on HSQN offers a potential strategy to overcome the multiple barriers of the gastrointestinal tract. STATEMENT OF SIGNIFICANCE Oral administration of nanocarriers remains a big challenge due to the multiple gastrointestinal barriers. In order to achieve both strong mucus permeation and efficient epithelial absorption, we modified the surface of silica nanoparticles with two layers: cell penetrating peptide (CPP) layer and succinylated casein (SCN) layer. The newly developed nanoformulations are demonstrated to have the following advantages: 1) versatile carrier with easy preparation, 2) high drug loading especially for poor soluble molecules, 3) reduced drug leakage in the stomach, 4) effective mucus penetration and transepithelial transport and 5) good biocompatibility, which in all indicate a great potential of this bilayer-modification strategy to facilitate the oral delivery of therapeutic agents.
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