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Tailoring Uptake Efficacy of HSV-1 gD Derived Carrier Peptides.


ABSTRACT: Regions of the Herpes simplex virus-1 (HSV-1) glycoprotein D (gD) were chosen to design carrier peptides based on the known tertiary structure of the virus entry receptor complexes. These complexes consist of the following: HSV-1 gD-nectin-1 and HSV-1 gD-herpesvirus entry mediator (HVEM). Three sets of peptides were synthesised with sequences covering the (i) N-terminal HVEM- and nectin-1 binding region -5-42, (ii) the 181-216 medium region containing nectin-1 binding sequences and (iii) the C-terminal nectin-1 binding region 214-255. The carrier candidates were prepared with acetylated and 5(6)-carboxyfluorescein labelled N-termini. The peptides were chemically characterised and their conformational features in solution were also determined. In vitro internalisation profile and intracellular localisation were evaluated on SH-SY5Y neuroblastoma cells. Peptide originated from the C-terminal region 224-247 of the HSV-1 gD showed remarkable internalisation compared to the other peptides with low to moderate entry. Electronic circular dichroism secondary structure studies of the peptides revealed that the most effectively internalised peptides exhibit high helical propensity at increasing TFE concentrations. We proved that oligopeptides derived from the nectin-1 binding region are promising candidates-with possibility of Lys237Arg and/or Trp241Phe substitutions-for side-reaction free conjugation of bioactive compounds-drugs or gene therapy agents-as cargos.

SUBMITTER: Bosze S 

PROVIDER: S-EPMC7277387 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Tailoring Uptake Efficacy of HSV-1 gD Derived Carrier Peptides.

Bősze Szilvia S   Zsila Ferenc F   Biri-Kovács Beáta B   Szeder Bálint B   Majer Zsuzsa Z   Hudecz Ferenc F   Uray Katalin K  

Biomolecules 20200506 5


Regions of the <i>Herpes simplex</i> virus-1 (HSV-1) glycoprotein D (gD) were chosen to design carrier peptides based on the known tertiary structure of the virus entry receptor complexes. These complexes consist of the following: HSV-1 gD-nectin-1 and HSV-1 gD-herpesvirus entry mediator (HVEM). Three sets of peptides were synthesised with sequences covering the (i) <i>N</i>-terminal HVEM- and nectin-1 binding region -5-42, (ii) the 181-216 medium region containing nectin-1 binding sequences and  ...[more]

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