Bioconjugates of PAMAM dendrimers with trans-retinal, pyridoxal, and pyridoxal phosphate

A Filipowicz, S WołowiecDepartment of Cosmetology, University of Information Technology and Management in Rzeszów, Rzeszów, PolandBackground: Bioconjugates of a polyamidoamine (PAMAM) G3 dendrimer and an aldehyde were synthesized as carriers for vitamins A and B6, and t...

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Autores principales: Filipowicz A, Wołowiec S
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Publicado: Dove Medical Press 2012
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spelling oai:doaj.org-article:cb6fff3636924f199b788698ae53b7f72021-12-02T08:44:27ZBioconjugates of PAMAM dendrimers with trans-retinal, pyridoxal, and pyridoxal phosphate1176-91141178-2013https://doaj.org/article/cb6fff3636924f199b788698ae53b7f72012-09-01T00:00:00Zhttp://www.dovepress.com/bioconjugates-of-pamam-dendrimers-with-trans-retinal-pyridoxal-and-pyr-a10915https://doaj.org/toc/1176-9114https://doaj.org/toc/1178-2013A Filipowicz, S WołowiecDepartment of Cosmetology, University of Information Technology and Management in Rzeszów, Rzeszów, PolandBackground: Bioconjugates of a polyamidoamine (PAMAM) G3 dendrimer and an aldehyde were synthesized as carriers for vitamins A and B6, and the bioavailability of these vitamins for skin nutrition was investigated.Methods: Nuclear magnetic resonance (NMR) and ultraviolet-visible methods were used to characterize the structure of the bioconjugates and for monitoring release of pyridoxal (Pyr) and pyridoxal phosphate (PLP) from these bioconjugates in vitro. A skin model permeation of bioconjugates was also studied in a Franz chamber.Results: A transdermal G3 PAMAM dendrimer was used to synthesize bioconjugates with trans-retinal (Ret), pyridoxal (Pyr), or PLP. These nanomolecules, containing up to four covalently linked Ret, Pyr, or PLP (G34Ret, G34Pyr, and G34PLP), were able to permeate the skin, as demonstrated in vitro using a model skin membrane. PLP and Pyr bound to a macromolecular vehicle were active cofactors for glutamic pyruvic transaminase, as shown by 1H NMR spectral monitoring of the progress of the L-alanine + α-ketoglutarate → glutamic acid + pyruvic acid reaction.Conclusion: PAMAM-PLP, PAMAM-Pyr, and PAMAM-Ret bioconjugates are able to permeate the skin. PLP and Pyr are available as cofactors for glutamic pyruvic transaminase.Keywords: PAMAM, trans-retinal, pyridoxal phosphate, pyridoxal, transaminationFilipowicz AWołowiec SDove Medical PressarticleMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol 2012, Iss default, Pp 4819-4828 (2012)
institution DOAJ
collection DOAJ
language EN
topic Medicine (General)
R5-920
spellingShingle Medicine (General)
R5-920
Filipowicz A
Wołowiec S
Bioconjugates of PAMAM dendrimers with trans-retinal, pyridoxal, and pyridoxal phosphate
description A Filipowicz, S WołowiecDepartment of Cosmetology, University of Information Technology and Management in Rzeszów, Rzeszów, PolandBackground: Bioconjugates of a polyamidoamine (PAMAM) G3 dendrimer and an aldehyde were synthesized as carriers for vitamins A and B6, and the bioavailability of these vitamins for skin nutrition was investigated.Methods: Nuclear magnetic resonance (NMR) and ultraviolet-visible methods were used to characterize the structure of the bioconjugates and for monitoring release of pyridoxal (Pyr) and pyridoxal phosphate (PLP) from these bioconjugates in vitro. A skin model permeation of bioconjugates was also studied in a Franz chamber.Results: A transdermal G3 PAMAM dendrimer was used to synthesize bioconjugates with trans-retinal (Ret), pyridoxal (Pyr), or PLP. These nanomolecules, containing up to four covalently linked Ret, Pyr, or PLP (G34Ret, G34Pyr, and G34PLP), were able to permeate the skin, as demonstrated in vitro using a model skin membrane. PLP and Pyr bound to a macromolecular vehicle were active cofactors for glutamic pyruvic transaminase, as shown by 1H NMR spectral monitoring of the progress of the L-alanine + α-ketoglutarate → glutamic acid + pyruvic acid reaction.Conclusion: PAMAM-PLP, PAMAM-Pyr, and PAMAM-Ret bioconjugates are able to permeate the skin. PLP and Pyr are available as cofactors for glutamic pyruvic transaminase.Keywords: PAMAM, trans-retinal, pyridoxal phosphate, pyridoxal, transamination
format article
author Filipowicz A
Wołowiec S
author_facet Filipowicz A
Wołowiec S
author_sort Filipowicz A
title Bioconjugates of PAMAM dendrimers with trans-retinal, pyridoxal, and pyridoxal phosphate
title_short Bioconjugates of PAMAM dendrimers with trans-retinal, pyridoxal, and pyridoxal phosphate
title_full Bioconjugates of PAMAM dendrimers with trans-retinal, pyridoxal, and pyridoxal phosphate
title_fullStr Bioconjugates of PAMAM dendrimers with trans-retinal, pyridoxal, and pyridoxal phosphate
title_full_unstemmed Bioconjugates of PAMAM dendrimers with trans-retinal, pyridoxal, and pyridoxal phosphate
title_sort bioconjugates of pamam dendrimers with trans-retinal, pyridoxal, and pyridoxal phosphate
publisher Dove Medical Press
publishDate 2012
url https://doaj.org/article/cb6fff3636924f199b788698ae53b7f7
work_keys_str_mv AT filipowicza bioconjugatesofpamamdendrimerswithtransretinalpyridoxalandpyridoxalphosphate
AT wołowiecs bioconjugatesofpamamdendrimerswithtransretinalpyridoxalandpyridoxalphosphate
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