Metabolomics study on the antitumor effect of marine natural compound flexibilide in HCT-116 colon cancer cell line
Copyright © 2016. Published by Elsevier B.V..
A marine natural compound flexibilide isolated from the soft coral Sinularia flexibilis has been found to have antitumor activity. However, its pharmacological mechanism on tumor cells has not been studied. Herein, an ultra-performance liquid chromatography coupled to quadrupole time of-flight mass spectrometry (UPLC/Q-TOF MS) based metabolomics approach was established to investigate the antitumor effect of flexibilide on HCT-116 cells and its action mechanism. Q-TOF MS and MS/MS were used to identify significantly different metabolites. Comparing flexibilide-treated HCT-116 cells group with control group (dimethyl sulfoxide), 19 distinct metabolites involved in sphingolipid metabolism, alanine, aspartate and glutamate metabolism, d-glutamine and d-glutamate metabolism, glycerophospholipid metabolism, pyrimidine metabolism and others were discovered and identified. The significant decrease of phosphatidylcholine (PC) and phosphocholine levels and increase of lysophosphatidylcholine (LysoPC) levels in flexibilide treated cells suggested down-regulation of PC biosynthesis pathway. The decrease of sphingolipids reflected the lesions of cell membrane, and the up-regulation of sphingosine-1-phosphate indicated that TRAF2 and caspase-8 were likely to be activated by flexibilide and further caused cell apoptosis. Furthermore, TCA cycle was deemed to be down-regulated after flexibilide treatment, which might lead to an unsustainable of mitochondrial transmembrane potential MMP). The further measured descreased MMP with the increasing concentration of flexibilide treatment indiciated the dysfunction of mitochondrial which might finally lead to apoptosis. The UPLC/Q-TOF MS based metabolomics approach provides new insights into the mechanistic studies of flexibilide on tumor cells, which benefit its further improvement and application.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2016 |
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| Erschienen: |
2016 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:1014 |
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| Enthalten in: |
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences - 1014(2016) vom: 01. März, Seite 17-23 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Gao, Dan [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 09.11.2016 Date Revised 30.12.2016 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.jchromb.2016.01.003 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM257309489 |
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| 245 | 1 | 0 | |a Metabolomics study on the antitumor effect of marine natural compound flexibilide in HCT-116 colon cancer cell line |
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| 520 | |a Copyright © 2016. Published by Elsevier B.V. | ||
| 520 | |a A marine natural compound flexibilide isolated from the soft coral Sinularia flexibilis has been found to have antitumor activity. However, its pharmacological mechanism on tumor cells has not been studied. Herein, an ultra-performance liquid chromatography coupled to quadrupole time of-flight mass spectrometry (UPLC/Q-TOF MS) based metabolomics approach was established to investigate the antitumor effect of flexibilide on HCT-116 cells and its action mechanism. Q-TOF MS and MS/MS were used to identify significantly different metabolites. Comparing flexibilide-treated HCT-116 cells group with control group (dimethyl sulfoxide), 19 distinct metabolites involved in sphingolipid metabolism, alanine, aspartate and glutamate metabolism, d-glutamine and d-glutamate metabolism, glycerophospholipid metabolism, pyrimidine metabolism and others were discovered and identified. The significant decrease of phosphatidylcholine (PC) and phosphocholine levels and increase of lysophosphatidylcholine (LysoPC) levels in flexibilide treated cells suggested down-regulation of PC biosynthesis pathway. The decrease of sphingolipids reflected the lesions of cell membrane, and the up-regulation of sphingosine-1-phosphate indicated that TRAF2 and caspase-8 were likely to be activated by flexibilide and further caused cell apoptosis. Furthermore, TCA cycle was deemed to be down-regulated after flexibilide treatment, which might lead to an unsustainable of mitochondrial transmembrane potential MMP). The further measured descreased MMP with the increasing concentration of flexibilide treatment indiciated the dysfunction of mitochondrial which might finally lead to apoptosis. The UPLC/Q-TOF MS based metabolomics approach provides new insights into the mechanistic studies of flexibilide on tumor cells, which benefit its further improvement and application | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Action mechanism | |
| 650 | 4 | |a Flexibilide | |
| 650 | 4 | |a HCT-116 cells | |
| 650 | 4 | |a Metabolomics | |
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| 650 | 7 | |a Sphingosine |2 NLM | |
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| 700 | 1 | |a Wang, Yini |e verfasserin |4 aut | |
| 700 | 1 | |a Xie, Weiyi |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Ti |e verfasserin |4 aut | |
| 700 | 1 | |a Jiang, Yuyang |e verfasserin |4 aut | |
| 700 | 1 | |a Guo, Yuewei |e verfasserin |4 aut | |
| 700 | 1 | |a Guan, Jin |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Hongxia |e verfasserin |4 aut | |
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