Combination of PLGA nanoparticles with mucoadhesive guar-gum films for buccal delivery of antihypertensive peptide

[Display omitted] Oral administration of proteins and peptides still is a challenging task to overcome due to low permeability through absorptive epithelia, degradation and metabolism that lead to poor bioavailability. Attempting to overcome such limitations, an antihypertensive peptide derived from...

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Published inInternational journal of pharmaceutics Vol. 547; no. 1-2; pp. 593 - 601
Main Authors Castro, Pedro M., Baptista, Patrícia, Madureira, Ana Raquel, Sarmento, Bruno, Pintado, Manuela E.
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier B.V 25.08.2018
Elsevier
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Abstract [Display omitted] Oral administration of proteins and peptides still is a challenging task to overcome due to low permeability through absorptive epithelia, degradation and metabolism that lead to poor bioavailability. Attempting to overcome such limitations, an antihypertensive peptide derived from whey protein, with KGYGGVSLPEW sequence, was incorporated for the first time into polymeric nanoparticles. An experimental design was followed in order to optimize drug-loading, association efficiency, mean particle size, zeta-potential and polydispersity index of a formulation of poly(lactic-co-glycolic acid) (PLGA) nanoparticles as carriers for bioactive peptides. In sequence, peptide-loaded PLGA nanoparticles were incorporated in a guar-gum film matrix, resulting in a combined delivery system aiming to promote slow release and permeation across buccal epithelium. Neither PLGA nanoparticles, guar-gum films nor the conjugation of PLGA nanoparticles and guar-gum films (GfNp) significantly compromised in vitro TR146 human buccal carcinoma cell line viability after 12 h contact, as assessed by 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide reduction assay (MTT). In vitro release assay for developed formulations allowed to conclude that the combination of orodispersible film and nanoparticles granted a slower release of AhP when compared with PLGA or guar-gum films alone or with control. GfNp offered more effective, synergistic, in vitro permeation of TR146 cell multilayer in comparison with guar-gum films or PLGA nanoparticles alone. The combination of PLGA nanoparticles with guar-gum films represent a suitable alternative to conventional per os delivery systems, leading to an increased buccal permeability of carried antihypertensive peptide.
AbstractList Oral administration of proteins and peptides still is a challenging task to overcome due to low permeability through absorptive epithelia, degradation and metabolism that lead to poor bioavailability. Attempting to overcome such limitations, an antihypertensive peptide derived from whey protein, with KGYGGVSLPEW sequence, was incorporated for the first time into polymeric nanoparticles. An experimental design was followed in order to optimize drug-loading, association efficiency, mean particle size, zeta-potential and polydispersity index of a formulation of poly(lactic-co-glycolic acid) (PLGA) nanoparticles as carriers for bioactive peptides. In sequence, peptide-loaded PLGA nanoparticles were incorporated in a guar-gum film matrix, resulting in a combined delivery system aiming to promote slow release and permeation across buccal epithelium. Neither PLGA nanoparticles, guar-gum films nor the conjugation of PLGA nanoparticles and guar-gum films (GfNp) significantly compromised in vitro TR146 human buccal carcinoma cell line viability after 12 h contact, as assessed by 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide reduction assay (MTT). In vitro release assay for developed formulations allowed to conclude that the combination of orodispersible film and nanoparticles granted a slower release of AhP when compared with PLGA or guar-gum films alone or with control. GfNp offered more effective, synergistic, in vitro permeation of TR146 cell multilayer in comparison with guar-gum films or PLGA nanoparticles alone. The combination of PLGA nanoparticles with guar-gum films represent a suitable alternative to conventional per os delivery systems, leading to an increased buccal permeability of carried antihypertensive peptide.
Oral administration of proteins and peptides still is a challenging task to overcome due to low permeability through absorptive epithelia, degradation and metabolism that lead to poor bioavailability. Attempting to overcome such limitations, an antihypertensive peptide derived from whey protein, with KGYGGVSLPEW sequence, was incorporated for the first time into polymeric nanoparticles. An experimental design was followed in order to optimize drug-loading, association efficiency, mean particle size, zeta-potential and polydispersity index of a formulation of poly(lactic-co-glycolic acid) (PLGA) nanoparticles as carriers for bioactive peptides. In sequence, peptide-loaded PLGA nanoparticles were incorporated in a guar-gum film matrix, resulting in a combined delivery system aiming to promote slow release and permeation across buccal epithelium. Neither PLGA nanoparticles, guar-gum films nor the conjugation of PLGA nanoparticles and guar-gum films (GfNp) significantly compromised in vitro TR146 human buccal carcinoma cell line viability after 12 h contact, as assessed by 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide reduction assay (MTT). In vitro release assay for developed formulations allowed to conclude that the combination of orodispersible film and nanoparticles granted a slower release of AhP when compared with PLGA or guar-gum films alone or with control. GfNp offered more effective, synergistic, in vitro permeation of TR146 cell multilayer in comparison with guar-gum films or PLGA nanoparticles alone. The combination of PLGA nanoparticles with guar-gum films represent a suitable alternative to conventional per os delivery systems, leading to an increased buccal permeability of carried antihypertensive peptide.Oral administration of proteins and peptides still is a challenging task to overcome due to low permeability through absorptive epithelia, degradation and metabolism that lead to poor bioavailability. Attempting to overcome such limitations, an antihypertensive peptide derived from whey protein, with KGYGGVSLPEW sequence, was incorporated for the first time into polymeric nanoparticles. An experimental design was followed in order to optimize drug-loading, association efficiency, mean particle size, zeta-potential and polydispersity index of a formulation of poly(lactic-co-glycolic acid) (PLGA) nanoparticles as carriers for bioactive peptides. In sequence, peptide-loaded PLGA nanoparticles were incorporated in a guar-gum film matrix, resulting in a combined delivery system aiming to promote slow release and permeation across buccal epithelium. Neither PLGA nanoparticles, guar-gum films nor the conjugation of PLGA nanoparticles and guar-gum films (GfNp) significantly compromised in vitro TR146 human buccal carcinoma cell line viability after 12 h contact, as assessed by 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide reduction assay (MTT). In vitro release assay for developed formulations allowed to conclude that the combination of orodispersible film and nanoparticles granted a slower release of AhP when compared with PLGA or guar-gum films alone or with control. GfNp offered more effective, synergistic, in vitro permeation of TR146 cell multilayer in comparison with guar-gum films or PLGA nanoparticles alone. The combination of PLGA nanoparticles with guar-gum films represent a suitable alternative to conventional per os delivery systems, leading to an increased buccal permeability of carried antihypertensive peptide.
[Display omitted] Oral administration of proteins and peptides still is a challenging task to overcome due to low permeability through absorptive epithelia, degradation and metabolism that lead to poor bioavailability. Attempting to overcome such limitations, an antihypertensive peptide derived from whey protein, with KGYGGVSLPEW sequence, was incorporated for the first time into polymeric nanoparticles. An experimental design was followed in order to optimize drug-loading, association efficiency, mean particle size, zeta-potential and polydispersity index of a formulation of poly(lactic-co-glycolic acid) (PLGA) nanoparticles as carriers for bioactive peptides. In sequence, peptide-loaded PLGA nanoparticles were incorporated in a guar-gum film matrix, resulting in a combined delivery system aiming to promote slow release and permeation across buccal epithelium. Neither PLGA nanoparticles, guar-gum films nor the conjugation of PLGA nanoparticles and guar-gum films (GfNp) significantly compromised in vitro TR146 human buccal carcinoma cell line viability after 12 h contact, as assessed by 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide reduction assay (MTT). In vitro release assay for developed formulations allowed to conclude that the combination of orodispersible film and nanoparticles granted a slower release of AhP when compared with PLGA or guar-gum films alone or with control. GfNp offered more effective, synergistic, in vitro permeation of TR146 cell multilayer in comparison with guar-gum films or PLGA nanoparticles alone. The combination of PLGA nanoparticles with guar-gum films represent a suitable alternative to conventional per os delivery systems, leading to an increased buccal permeability of carried antihypertensive peptide.
Author Castro, Pedro M.
Madureira, Ana Raquel
Baptista, Patrícia
Pintado, Manuela E.
Sarmento, Bruno
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Issue 1-2
Keywords Guar-gum films
Antihypertensive peptide
Whey protein
Buccal delivery
PLGA nanoparticles
Language English
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Snippet [Display omitted] Oral administration of proteins and peptides still is a challenging task to overcome due to low permeability through absorptive epithelia,...
Oral administration of proteins and peptides still is a challenging task to overcome due to low permeability through absorptive epithelia, degradation and...
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SubjectTerms Antihypertensive peptide
Buccal delivery
Guar-gum films
PLGA nanoparticles
Whey protein
Title Combination of PLGA nanoparticles with mucoadhesive guar-gum films for buccal delivery of antihypertensive peptide
URI https://dx.doi.org/10.1016/j.ijpharm.2018.05.051
https://www.ncbi.nlm.nih.gov/pubmed/29800740
https://www.proquest.com/docview/2045303235
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