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The Mechanism of Bufalin-Induced Apoptosis of K562/A02

BACKGROUND: In clinical practice, many patients become multidrug resistant during chemotherapy, resulting in reduced or no healing effect. Therefore, the present study focused on bufalin, which is extracted from a traditional Chinese medicine named Chan Su (Venenum bufonis). We assessed the effect o...

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Autores principales: Xie, Ying, Yan, Xu, Sun, Ling
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Scientific Literature, Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6467175/
https://www.ncbi.nlm.nih.gov/pubmed/30955024
http://dx.doi.org/10.12659/MSM.915802
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author Xie, Ying
Yan, Xu
Sun, Ling
author_facet Xie, Ying
Yan, Xu
Sun, Ling
author_sort Xie, Ying
collection PubMed
description BACKGROUND: In clinical practice, many patients become multidrug resistant during chemotherapy, resulting in reduced or no healing effect. Therefore, the present study focused on bufalin, which is extracted from a traditional Chinese medicine named Chan Su (Venenum bufonis). We assessed the effect of bufalin in reversing K562/A02 cell drug resistance and inducing apoptosis, and explored the possible mechanism by which bufalin induces K562/A02 cell apoptosis. MATERIAL/METHODS: We used flow cytometry to evaluate intracellular ADM concentration, and RT-PCR and Western blot analysis were used to assess the effect of nuclear factor erythroid-2-related factor 2 (Nrf2) bufalin-related resistance gene expression. We used MTT and flow cytometry to detect apoptosis, and RT-PCR and Western blot were used to detect endoplasmic reticulum stress and apoptosis gene action. RESULTS: We found that bufalin can increase the concentration of Adriamycin (ADM) in K562/A02 cells by inhibiting the expression of Nrf2 and related drug resistance factors. The results showed that bufalin induced apoptosis of K562/A02 cells by the IRE1α/TRAF2/JNK/caspase-12 pathway. CONCLUSIONS: These results suggest bufalin can reverse drug resistance in K562/A02 cells and that it induces apoptosis of K562/A02 cells by the IRE1α/TRAF2/JNK/caspase-12 pathway.
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spelling pubmed-64671752019-04-26 The Mechanism of Bufalin-Induced Apoptosis of K562/A02 Xie, Ying Yan, Xu Sun, Ling Med Sci Monit Lab/In Vitro Research BACKGROUND: In clinical practice, many patients become multidrug resistant during chemotherapy, resulting in reduced or no healing effect. Therefore, the present study focused on bufalin, which is extracted from a traditional Chinese medicine named Chan Su (Venenum bufonis). We assessed the effect of bufalin in reversing K562/A02 cell drug resistance and inducing apoptosis, and explored the possible mechanism by which bufalin induces K562/A02 cell apoptosis. MATERIAL/METHODS: We used flow cytometry to evaluate intracellular ADM concentration, and RT-PCR and Western blot analysis were used to assess the effect of nuclear factor erythroid-2-related factor 2 (Nrf2) bufalin-related resistance gene expression. We used MTT and flow cytometry to detect apoptosis, and RT-PCR and Western blot were used to detect endoplasmic reticulum stress and apoptosis gene action. RESULTS: We found that bufalin can increase the concentration of Adriamycin (ADM) in K562/A02 cells by inhibiting the expression of Nrf2 and related drug resistance factors. The results showed that bufalin induced apoptosis of K562/A02 cells by the IRE1α/TRAF2/JNK/caspase-12 pathway. CONCLUSIONS: These results suggest bufalin can reverse drug resistance in K562/A02 cells and that it induces apoptosis of K562/A02 cells by the IRE1α/TRAF2/JNK/caspase-12 pathway. International Scientific Literature, Inc. 2019-04-07 /pmc/articles/PMC6467175/ /pubmed/30955024 http://dx.doi.org/10.12659/MSM.915802 Text en © Med Sci Monit, 2019 This work is licensed under Creative Common Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0 (https://creativecommons.org/licenses/by-nc-nd/4.0/) )
spellingShingle Lab/In Vitro Research
Xie, Ying
Yan, Xu
Sun, Ling
The Mechanism of Bufalin-Induced Apoptosis of K562/A02
title The Mechanism of Bufalin-Induced Apoptosis of K562/A02
title_full The Mechanism of Bufalin-Induced Apoptosis of K562/A02
title_fullStr The Mechanism of Bufalin-Induced Apoptosis of K562/A02
title_full_unstemmed The Mechanism of Bufalin-Induced Apoptosis of K562/A02
title_short The Mechanism of Bufalin-Induced Apoptosis of K562/A02
title_sort mechanism of bufalin-induced apoptosis of k562/a02
topic Lab/In Vitro Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6467175/
https://www.ncbi.nlm.nih.gov/pubmed/30955024
http://dx.doi.org/10.12659/MSM.915802
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