Oxidative stress and cyto-genotoxicity induced by poly-d-glucosamine in human blood cells in vitro


Cerig S., GEYİKOĞLU F.

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION C-A JOURNAL OF BIOSCIENCES, vol.77, no.1-2, pp.43-55, 2022 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 77 Issue: 1-2
  • Publication Date: 2022
  • Doi Number: 10.1515/znc-2021-0080
  • Journal Name: ZEITSCHRIFT FUR NATURFORSCHUNG SECTION C-A JOURNAL OF BIOSCIENCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, EMBASE, MEDLINE, Veterinary Science Database
  • Page Numbers: pp.43-55
  • Keywords: human blood, oxidative stress, poly-D-glucosamine, seafood, toxicity, ANTIOXIDANT ACTIVITY, CHROMOSOME-ABERRATIONS, CHITOSAN, ASSAY, LYMPHOCYTES, CHITIN, CYTOTOXICITY, LACTATE, NANOPARTICLES, PROLIFERATION
  • Ataturk University Affiliated: Yes

Abstract

Poly-N-acetyl-d-glucosamine (CH; chitin) is the main component of the insect skeleton, fungal cell wall, and many crustaceans, including crab and shrimp. CH is the most abundant in nature after cellulose, and it has a complex and hardly soluble structure. Poly-d-glucosamine (CHO; chitosan) is a soluble derivative of CH produced by deacetylation used in many fields, including human health. This study carried out the cytotoxic, genotoxic, and oxidative effects of CHO on human whole blood (hWB) and lymphocytes (LYMs) in dose ranges 6.25-2000 mu g/mL, in vitro. Total antioxidant capacity (TAC) and total oxidant status (TOS) analyzes were performed on plasma to appreciate oxidative stress. 3-(4,5-Dimethylthiazol-2-yl)-2,5 diphenyltetrazolium bromide (MTT) and lactate dehydrogenase (LDH) assays were applied to understand the cytotoxicity. Chromosomal aberration (CA) and micronucleus (MN) methods were practiced to evaluate genotoxicity. 6.25-150 mu g/mL doses increased TAC and decreased TOS. A decreasing and increasing curve from 200 to 2000 mu g/mL on TAC and TOS values were determined, respectively. 0-250 mu g/mL doses did not provide any cytotoxic data. However, 500-2000 mu g/mL doses showed increasing cytotoxicity and genotoxicity. The study results showed that CHO does not pose a toxic risk to human health at low doses but may pose a threat at high doses.