In vitro/in vivoidentification of zein degraded peptides using HPLC-MS/MS and their safety evaluation.
Biomed Mater
; 18(2)2023 02 07.
Article
en En
| MEDLINE
| ID: mdl-36649654
ABSTRACT
The identification of degraded products of implanted scaffolds is desirable to avoid regulatory concerns.In vivoidentification of products produced by the degradation of natural protein-based scaffolds is complex and demands the establishment of a routine analytical method. In this study, we developed a method for the identification of peptides produced by the degradation of zein bothin vitroandin vivousing high performance liquid chromatography with tandem mass spectrometry (HPLC-MS/MS). Forin vitroexperiments, zein was degraded enzymatically and analyzed produced peptides.In vitrostudy showed cytocompatibility of peptides present in the hydrolysate of zein with no induction of apoptosis and cell senescence. Forin vivoexperiment, zein gels were prepared and subcutaneously implanted in rats. Peptides produced by the degradation of zein were identified and few were selected as targeted (unique peptides) and two peptides were synthesized as the reference sequence of these peptides. Further, peptide analysis using HPLC-MS/MS of different organs was performed after 2 and 8 weeks of implantation of zein gel in rats. It was found that zein-originated peptides were accumulated in different organs. QQHIIGGALF or peptides with same fractions were identified as unique peptides. These peptides were also found in control rats with regular rat feed, which means the degradation of implanted zein biomaterial produced food related peptides of non-toxic nature. Furthermore, hemotoxylin and eosin (H&E) staining exhibited normal features. Overall, zein degraded products showed cytocompatibility and did not induce organ toxicity, and QQHIIGGALF can act as a standard peptide for tracing and determining zein degradation. The study also provides the feasibility of complex analysis on identification and quantification of degradation products of protein-based scaffolds.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Zeína
/
Espectrometría de Masas en Tándem
Tipo de estudio:
Diagnostic_studies
Límite:
Animals
Idioma:
En
Revista:
Biomed Mater
Asunto de la revista:
ENGENHARIA BIOMEDICA
Año:
2023
Tipo del documento:
Article