Toxicity of poly-dispersed single-walled carbon nanotubes on bone marrow derived Hematopoietic Stem and Progenitor Cells

Autor: Md. Babu Mia, Rajiv K. Saxena
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Current Research in Toxicology, Vol 2, Iss, Pp 82-92 (2021)
Current Research in Toxicology
Popis: Graphical abstract
Highlights • AF-SWCNT administration caused decreased recovery of viable cells from bone marrow. • AF-SWCNTs induced cell death, ROS production and downregulated Caspase genes. • Cytokines induced differentiation of HSPCs to immune cells was also reduced.
This study has explored the effect of acid-functionalized single-walled carbon nanotubes (AF-SWCNTs) on Hematopoietic Stem and Progenitor Cell (HSPCs) in mouse bone marrow. Administration of AF-SWCNTs induced a significant decline in the live-cell recovery from bone marrow. Lin-negative Stem cell enriched HSPCs internalized AF-SWCNTs that remained localized in cytoplasmic areas. Incubation of HSPCs with AF-SWCNTs resulted in induction of cell death, inhibition of cell cycle, and induction of reactive oxygen species (ROS) as well as the expression of Caspase 3, 7 and 9 enzymes. In vitro culture with a cytokine cocktail (SCF, GM-CSF, IL3, IL6, IL7) induced differentiation of HSPCs into lymphocytes and myeloid cells, that was inhibited in presence of AF-SWCNTs. Relative recoveries of lymphocytes specifically B lymphocytes, was significantly reduced by AF-SWCNT-treatment, whereas the relative recovery of myeloid cells remained unaltered. These results suggest that AF-SWCNTs have significant toxic effects on HSPCs and differentially suppress the ontogeny of lymphoid and myeloid cells.
Databáze: OpenAIRE