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Dual Effect of Glucocorticoid-Induced Tumor Necrosis Factor–Related Receptor Ligand Carrying Mesenchymal Stromal Cells on Small Cell Lung Cancer: A Pr
Update time:2018-07-02 19:36:05   【 Font: Large  Medium Small

Abstract

Background aims

TNFR family member glucocorticoid-induced tumor necrosis factor–related receptor (GITR/TNFRSF18) activation by its ligand glucocorticoid-induced TNF-related receptor ligand (GITRL) have important roles in proliferation, death and differentiation of cells. Some types of small cell lung cancers (SCLCs) express GITR. Because mesenchymal stromal cells (MSCs) may target tumor cells, we aimed to investigate the effect of MSCs carrying GITRL overexpressing plasmid on the proliferation and viability of a GITR+ SCLC cell line (SCLC-21H) compared with a GITR– SCLC cell line (NCI-H82).

Methods

Electroporation was used to transfer pGITRL (GITRL gene carrying plasmid) or pCR3 (mock plasmid) into MSCs. Flow cytometry and semi-quantitative polymerase chain reaction were used to characterize the transfected MSCs. Following SCLC-21H or NCI-H82 cell lines were co-cultured with pGITRL-MSCs.

Results

Proliferation of NCI-H82 was increased in all types of co-cultures while SCLC-21H cells did not. GITRL expressing MSCs were able to induce cell death of SCLC-21H through the upregulation of SIVA1 apoptosis inducing factor.

Conclusions

The influence of MSCs on SCLC cells can vary according to the cancer cell subtypes as obtained in SCLC-21H and NCI-H82 and enabling GITR-GITRL interaction can induce cell death of SCLC cell lines.

Key Words

apoptosis; cell-based gene delivery; genetically modified MSCs; GITRL; mesenchymal stromal cell; small cell lung cancer; SIVA

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Source:Cytotherapy      by I Cagnan, I Akar, G Esendagli, et al.
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