Pulsatilla Decoction and its bioactive component β-peltatin induce G2/M cell cycle arrest and apoptosis in pancreatic cancer

Abstract Background Pancreatic cancer (PAC), a malignancy that is fatal and commonly diagnosed at a late stage. Despite considerable advancements in cancer treatment, the survival rate of PAC remains largely consistent for the past 60 years. The traditional Chinese medicine formula Pulsatilla Decoct...

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Main Authors: Rong Wu, Zhichao Xi, Mengfan Liu, Hangui Ren, Rongchen Dai, Xue Jiang, Wan Najbah Nik Nabil, Yalin Wang, Jiling Feng, Qiong Chai, Qihan Dong, Hongxi Xu
Format: Article
Language:English
Published: BMC 2023-05-01
Series:Chinese Medicine
Subjects:
Online Access:https://doi.org/10.1186/s13020-023-00774-0
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author Rong Wu
Zhichao Xi
Mengfan Liu
Hangui Ren
Rongchen Dai
Xue Jiang
Wan Najbah Nik Nabil
Yalin Wang
Jiling Feng
Qiong Chai
Qihan Dong
Hongxi Xu
author_facet Rong Wu
Zhichao Xi
Mengfan Liu
Hangui Ren
Rongchen Dai
Xue Jiang
Wan Najbah Nik Nabil
Yalin Wang
Jiling Feng
Qiong Chai
Qihan Dong
Hongxi Xu
author_sort Rong Wu
collection DOAJ
description Abstract Background Pancreatic cancer (PAC), a malignancy that is fatal and commonly diagnosed at a late stage. Despite considerable advancements in cancer treatment, the survival rate of PAC remains largely consistent for the past 60 years. The traditional Chinese medicine formula Pulsatilla Decoction (PD) has been clinically used to treat inflammatory diseases for millennia and recently as a supplementary anti-cancer treatment in China. However, the bioactive ingredients and mechanisms underlying its anti-cancer effect remains unclear. Methods The composition and quality control of PD were verified through analysis by high performance liquid chromatography. Cell viability was determined using Cell Counting Kit-8 assay. The cell cycle distribution was analyzed through PI staining and flow cytometry analysis, while apoptotic cells were measured by double staining with Annexin V-FITC and PI. We used immunoblotting to examine protein expressions. The in vivo effects of β-peltatin and podophyllotoxin were evaluated on a subcutaneously-xenografted BxPC-3 cell nude mice model. Results The current study demonstrated that PD markedly inhibited PAC cell proliferation and triggered their apoptosis. Four herbal PD formula was then disassembled into 15 combinations of herbal ingredients and a cytotoxicity assay showed that the Pulsatillae chinensis exerted the predominant anti-PAC effect. Further investigation indicated that β-peltatin was potently cytotoxic with IC50 of ~ 2 nM. β-peltatin initially arrested PAC cells at G2/M phase, followed by apoptosis induction. Animal study confirmed that β-peltatin significantly suppressed the growth of subcutaneously-implanted BxPC-3 cell xenografts. Importantly, compared to podophyllotoxin that is the parental isomer of β-peltatin but clinically obsoleted due to its severe toxicity, β-peltatin exhibited stronger anti-PAC effect and lower toxicity in mice. Conclusions Our results demonstrate that Pulsatillae chinensis and particularly its bioactive ingredient β-peltatin suppress PAC by triggering cell cycle arrest at G2/M phase and apoptosis.
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spelling doaj.art-c04f7e79ac4d4a5e904a2d12b931b27b2023-05-28T11:27:32ZengBMCChinese Medicine1749-85462023-05-0118111310.1186/s13020-023-00774-0Pulsatilla Decoction and its bioactive component β-peltatin induce G2/M cell cycle arrest and apoptosis in pancreatic cancerRong Wu0Zhichao Xi1Mengfan Liu2Hangui Ren3Rongchen Dai4Xue Jiang5Wan Najbah Nik Nabil6Yalin Wang7Jiling Feng8Qiong Chai9Qihan Dong10Hongxi Xu11School of Pharmacy, Shanghai University of Traditional Chinese MedicineSchool of Pharmacy, Shanghai University of Traditional Chinese MedicineSchool of Pharmacy, Shanghai University of Traditional Chinese MedicineSchool of Pharmacy, Shanghai University of Traditional Chinese MedicineSchool of Pharmacy, Shanghai University of Traditional Chinese MedicineSchool of Pharmacy, Shanghai University of Traditional Chinese MedicineSchool of Pharmacy, Shanghai University of Traditional Chinese MedicineSchool of Pharmacy, Shanghai University of Traditional Chinese MedicineSchool of Pharmacy, Shanghai University of Traditional Chinese MedicineSchool of Pharmacy, Shanghai University of Traditional Chinese MedicineChinese Medicine Anti-Cancer Evaluation Program, Greg Brown Laboratory, Central Clinical School and Charles Perkins Centre, Faculty of Medicine and Health, The University of SydneySchool of Pharmacy, Shanghai University of Traditional Chinese MedicineAbstract Background Pancreatic cancer (PAC), a malignancy that is fatal and commonly diagnosed at a late stage. Despite considerable advancements in cancer treatment, the survival rate of PAC remains largely consistent for the past 60 years. The traditional Chinese medicine formula Pulsatilla Decoction (PD) has been clinically used to treat inflammatory diseases for millennia and recently as a supplementary anti-cancer treatment in China. However, the bioactive ingredients and mechanisms underlying its anti-cancer effect remains unclear. Methods The composition and quality control of PD were verified through analysis by high performance liquid chromatography. Cell viability was determined using Cell Counting Kit-8 assay. The cell cycle distribution was analyzed through PI staining and flow cytometry analysis, while apoptotic cells were measured by double staining with Annexin V-FITC and PI. We used immunoblotting to examine protein expressions. The in vivo effects of β-peltatin and podophyllotoxin were evaluated on a subcutaneously-xenografted BxPC-3 cell nude mice model. Results The current study demonstrated that PD markedly inhibited PAC cell proliferation and triggered their apoptosis. Four herbal PD formula was then disassembled into 15 combinations of herbal ingredients and a cytotoxicity assay showed that the Pulsatillae chinensis exerted the predominant anti-PAC effect. Further investigation indicated that β-peltatin was potently cytotoxic with IC50 of ~ 2 nM. β-peltatin initially arrested PAC cells at G2/M phase, followed by apoptosis induction. Animal study confirmed that β-peltatin significantly suppressed the growth of subcutaneously-implanted BxPC-3 cell xenografts. Importantly, compared to podophyllotoxin that is the parental isomer of β-peltatin but clinically obsoleted due to its severe toxicity, β-peltatin exhibited stronger anti-PAC effect and lower toxicity in mice. Conclusions Our results demonstrate that Pulsatillae chinensis and particularly its bioactive ingredient β-peltatin suppress PAC by triggering cell cycle arrest at G2/M phase and apoptosis.https://doi.org/10.1186/s13020-023-00774-0Pulsatilla DecoctionPulsatillaβ-peltatinPancreatic cancerG2/M arrestApoptosis
spellingShingle Rong Wu
Zhichao Xi
Mengfan Liu
Hangui Ren
Rongchen Dai
Xue Jiang
Wan Najbah Nik Nabil
Yalin Wang
Jiling Feng
Qiong Chai
Qihan Dong
Hongxi Xu
Pulsatilla Decoction and its bioactive component β-peltatin induce G2/M cell cycle arrest and apoptosis in pancreatic cancer
Chinese Medicine
Pulsatilla Decoction
Pulsatilla
β-peltatin
Pancreatic cancer
G2/M arrest
Apoptosis
title Pulsatilla Decoction and its bioactive component β-peltatin induce G2/M cell cycle arrest and apoptosis in pancreatic cancer
title_full Pulsatilla Decoction and its bioactive component β-peltatin induce G2/M cell cycle arrest and apoptosis in pancreatic cancer
title_fullStr Pulsatilla Decoction and its bioactive component β-peltatin induce G2/M cell cycle arrest and apoptosis in pancreatic cancer
title_full_unstemmed Pulsatilla Decoction and its bioactive component β-peltatin induce G2/M cell cycle arrest and apoptosis in pancreatic cancer
title_short Pulsatilla Decoction and its bioactive component β-peltatin induce G2/M cell cycle arrest and apoptosis in pancreatic cancer
title_sort pulsatilla decoction and its bioactive component β peltatin induce g2 m cell cycle arrest and apoptosis in pancreatic cancer
topic Pulsatilla Decoction
Pulsatilla
β-peltatin
Pancreatic cancer
G2/M arrest
Apoptosis
url https://doi.org/10.1186/s13020-023-00774-0
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