[Effect of Asparaginase on Diffuse Large B-Cell Lymphoma Cell Apoptosis and Its Related Mechanism].

OBJECTIVE

To investigate the effects and its potential mechanism of asparaginase on proliferation, cell cycle and apoptosis of diffuse large B-cell lymphoma (DLBCL) cell lines.

METHODS

CCK-8 assay was used to detect the effect of asparaginase on proliferation of DLBCL cell lines. Flow cytometry was used to analyze cell cycle and apoptosis. Western blot was used to analyze apoptosis and its potential mechanism.

RESULTS

Asparaginase obviously inhibited the proliferation of multiple DLBCL cell lines and caused G0/G1 cell arrest. Furtherly, asparaginase inhibited the expression of HIF-1α which related to poor prognosis of patients with DLBCL, up-regulated the expression of DR4 and caspase 8, reduce the expression of c-FLIP. Meanwhile, asparaginase induced the expression of pro-apoptotic protein BAX and inhibited the expression of anti-apoptotic protein MCL-1.

CONCLUSION

Asparaginase can inhibit the proliferation of DLBCL cell lines, cause the arrest of cells in G0/G1 and induce apoptosis via the endogenous and exogenous apoptotic pathways.