Abstract
Objective
Two-dimensional electrophoresis (2-DE) and MALDI-TOF/TOF mass spectrometry were performed to compare the proteomic alterations of lycorine-treated and control cells to further investigate the anti-multiple myeloma (MM) mechanisms of lycorine.
Results
Mass spectrometry results showed that after lycorine treatment of MM cells, 42% of the differentially expressed proteins had subcellular localization, mainly, on mitochondria. Voltage-dependent anion-selective channel protein 2 (VDAC2), the most abundant protein in the outer mitochondrial membrane, was up-regulated after treatment with lycorine and was subsequently verified by western blot analysis. Further studies on mitochondria found that lycorine was able to increase abnormal mitochondria and increase mitochondrial membrane potential.
Conclusions
Lycorine can achieve the effect of resisting multiple myeloma by acting on VDAC2 and causing mitochondrial abnormalities.
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Acknowledgements
This study was supported by grants from the National Natural Science Foundation of China (Nos. 81970195, 81600184) and the Fundamental Research Funds for the Central Universities of Central South University (No. 2020zzts425).
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Yi, H., Shen, X., Wang, H. et al. Protein mass spectrometry reveals lycorine exerting anti-multiple-myeloma effect by acting on VDAC2 and causing mitochondrial abnormalities. Biotechnol Lett 43, 537–546 (2021). https://doi.org/10.1007/s10529-020-03053-2
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DOI: https://doi.org/10.1007/s10529-020-03053-2