Granatin B and punicalagin from Chinese herbal medicine pomegranate peels elicit reactive oxygen species-mediated apoptosis and cell cycle arrest in colorectal cancer cells.
In: Phytomedicine : international journal of phytotherapy and phytopharmacology, Jg. 97 (2022-03-01), S. 153923
academicJournal
Zugriff:
Background: Colorectal cancer ranks among the most common cancers. 5-Fluorouracil (5-FU) based first-line chemotherapy for colorectal cancer treatment often leads to chemoresistance and gastrointestinal mucositis.
Purpose: This study aimed to find potential therapeutic agents from herbal medicine with anti-colorectal cancer and anti-mucositis activities.
Methods: Chinese medicine theory, network pharmacology analyses, and antioxidant activity coupled with liquid chromatography tandem mass spectrometry analyses were used to identify potential bioactive compounds. HT-29 human colorectal cancer cell culture and xenograft tumor models were employed to study anti-colorectal cancer efficacy. Lipopolysaccharide-induced RAW 264.7 and 5-FU treated Dark Agouti rats were used to evaluate anti-inflammatory and anti-mucositis activities. Histological staining, immunofluorescence imaging, western blots, and flow cytometric analyses were employed to explore the underlying mechanisms.
Results: Both Chinese medicine theory and network pharmacology analyses indicated pomegranate peels as a potential anti-colorectal cancer and anti-mucositis agent. Antioxidant activity coupled with liquid chromatography tandem mass spectrometry analyses revealed granatin B and punicalagin as the most potent antioxidant compounds in pomegranate peels. Granatin B and punicalagin demonstrated superior anti-colorectal cancer activities in both cell culture and xenograft tumor models. Granatin B and punicalagin also exhibited strong anti-inflammatory activities in lipopolysaccharide-induced RAW264.7 cells and anti-mucositis activities in 5-FU-treated rats. Mechanistic studies revealed that granatin B and punicalagin induced reactive oxygen species-mediated S-phase cell cycle arrest and apoptosis in HT-29 cells. Moreover, these compounds sensitized HT-29 cells to 5-FU-induced cell death and S-phase cell cycle arrest.
Conclusion: We report that granatin B and punicalagin exhibit superior anti-colorectal cancer and anti-mucositis activities. To the best of our knowledge, these results are novel and suggest that utilizing phenols from herbal medicine, such as granatin B and punicalagin, to target reactive oxygen species may be an innovative therapy to treat colorectal cancer and intestinal mucositis.
(Copyright © 2022 Elsevier GmbH. All rights reserved.)
Titel: |
Granatin B and punicalagin from Chinese herbal medicine pomegranate peels elicit reactive oxygen species-mediated apoptosis and cell cycle arrest in colorectal cancer cells.
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Autor/in / Beteiligte Person: | Chen, XX ; Khyeam, S ; Zhang, ZJ ; Zhang, KY |
Zeitschrift: | Phytomedicine : international journal of phytotherapy and phytopharmacology, Jg. 97 (2022-03-01), S. 153923 |
Veröffentlichung: | Stuttgart : Urban & Fischer Verlag ; <i>Original Publication</i>: Stuttgart ; New York : G. Fischer, c1994-, 2022 |
Medientyp: | academicJournal |
ISSN: | 1618-095X (electronic) |
DOI: | 10.1016/j.phymed.2022.153923 |
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