J 2021

Healing and Angiogenic Properties of Collagen/Chitosan Scaffolds Enriched with Hyperstable FGF2-STAB(R) Protein: In Vitro, Ex Ovo and In Vivo Comprehensive Evaluation

VOJTOVA, Lucy, Veronika PAVLINAKOVA, Johana MUCHOVA, Katarina KACVINSKA, Jana BRTNIKOVA et. al.

Základní údaje

Originální název

Healing and Angiogenic Properties of Collagen/Chitosan Scaffolds Enriched with Hyperstable FGF2-STAB(R) Protein: In Vitro, Ex Ovo and In Vivo Comprehensive Evaluation

Autoři

VOJTOVA, Lucy (203 Česká republika), Veronika PAVLINAKOVA (203 Česká republika, garant), Johana MUCHOVA (203 Česká republika), Katarina KACVINSKA, Jana BRTNIKOVA (203 Česká republika), Martin KNOZ (203 Česká republika, domácí), Břetislav LIPOVÝ (203 Česká republika, domácí), Martin FALDYNA (203 Česká republika), Eduard GOPFERT (203 Česká republika), Jakub HOLOUBEK (203 Česká republika, domácí), Zdeněk PAVLOVSKÝ (203 Česká republika, domácí), Monika VICENOVA (203 Česká republika), Veronika HEFKA BLAHNOVA (203 Česká republika), Vanessa HEARNDEN a Eva FILOVA (203 Česká republika)

Vydání

BIOMEDICINES, BASEL, MDPI, 2021, 2227-9059

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10608 Biochemistry and molecular biology

Stát vydavatele

Švýcarsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 4.757

Kód RIV

RIV/00216224:14110/21:00121944

Organizační jednotka

Lékařská fakulta

UT WoS

000665273200001

Klíčová slova anglicky

collagen; chitosan; scaffold; FGF2; skin regeneration; tissue engineering

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 19. 7. 2021 09:37, Mgr. Tereza Miškechová

Anotace

V originále

Wound healing is a process regulated by a complex interaction of multiple growth factors including fibroblast growth factor 2 (FGF2). Although FGF2 appears in several tissue engineered studies, its applications are limited due to its low stability both in vitro and in vivo. Here, this shortcoming is overcome by a unique nine-point mutant of the low molecular weight isoform FGF2 retaining full biological activity even after twenty days at 37 degrees C. Crosslinked freeze-dried 3D porous collagen/chitosan scaffolds enriched with this hyper stable recombinant human protein named FGF2-STAB(R) were tested for in vitro biocompatibility and cytotoxicity using murine 3T3-A31 fibroblasts, for angiogenic potential using an ex ovo chick chorioallantoic membrane assay and for wound healing in vivo with 3-month old white New Zealand rabbits. Metabolic activity assays indicated the positive effect of FGF2-STAB(R) already at very low concentrations (0.01 mu g/mL). The angiogenic properties examined ex ovo showed enhanced vascularization of the tested scaffolds. Histological evaluation and gene expression analysis by RT-qPCR proved newly formed granulation tissue at the place of a previous skin defect without significant inflammation infiltration in vivo. This work highlights the safety and biocompatibility of newly developed crosslinked collagen/chitosan scaffolds involving FGF2-STAB(R) protein. Moreover, these sponges could be used as scaffolds for growing cells for dermis replacement, where neovascularization is a crucial parameter for successful skin regeneration.