1
|
Zhang L, Wu L, Zhu X, Mei J, Chen Y. Paeonol represses A549 cell glycolytic reprogramming and proliferation by decreasing m6A modification of Acyl-CoA dehydrogenase. CHINESE J PHYSIOL 2023; 66:248-256. [PMID: 37635484 DOI: 10.4103/cjop.cjop-d-22-00166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023] Open
Abstract
Aberrant glycolytic reprogramming is involved in lung cancer progression by promoting the proliferation of non-small cell lung cancer cells. Paeonol, as a traditional Chinese medicine, plays a critical role in multiple cancer cell proliferation and inflammation. Acyl-CoA dehydrogenase (ACADM) is involved in the development of metabolic diseases. N6-methyladenosine (m6A) modification is important for the regulation of messenger RNA stability, splicing, and translation. Here, we investigated whether paeonol regulates the proliferation and glycolytic reprogramming via ACADM with m6A modification in A549 cells (human non-small cell lung cancer cells). Cell counting kit 8, 5-Bromo-2-deoxyuridine, 5-ethynyl-2'-deoxyuridine (EdU) incorporation, flow cytometry analysis, western blotting and seahorse XFe24 extracellular flux analyzer assays showed that paeonol had a significant inhibitory effect against A549 cell proliferation and glycolysis. Mechanistically, ACADM was a functional target of paeonol. We also showed that the m6A reader YTH domain containing 1 plays an important role in m6A-modified ACADM expression, which is negatively regulated by paeonol, and is involved in A549 cell proliferation and glycolytic reprogramming. These results indicated the central function of paeonol in regulating A549 cell glycolytic reprogramming and proliferation via m6A modification of ACADM.
Collapse
Affiliation(s)
- Lixin Zhang
- Central Laboratory of Harbin Medical University, Daqing, China; Department of Immunology, College of Medical Laboratory Science and Technology, Harbin Medical University, Daqing, China
| | - Lihua Wu
- Department of Geriatrics, Daqing Oilfield General Hospital, Daqing, China
| | - Xiangrui Zhu
- Department of Immunology, College of Medical Laboratory Science and Technology, Harbin Medical University, Daqing, China
| | - Jian Mei
- Department of Immunology, College of Medical Laboratory Science and Technology, Harbin Medical University, Daqing, China
| | - Yingli Chen
- Central Laboratory of Harbin Medical University, Daqing, China; Department of Immunology, College of Medical Laboratory Science and Technology, Harbin Medical University, Daqing, China
| |
Collapse
|
2
|
Liu X, Wang H, Wang X, Ning Y, Liu W, Gao J. Baixiangdan capsule and Shuyu capsule regulate anger-out and anger-in, respectively: GB1–mediated GABA can regulate 5-HT levels in multiple brain regions. Aging (Albany NY) 2023; 15:2046-2065. [PMID: 36988497 PMCID: PMC10085605 DOI: 10.18632/aging.204589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 02/13/2023] [Indexed: 03/30/2023]
Abstract
The identity of the mechanism by which the Baixiangdan capsule (BXD) and the Shuyu capsule (SY) control anger-out (AO) and anger-in (AI) in rodents is unclear. The current study clarified the intervention role of BXD and SY on AO and AI male rats. We further explored the differences between BXD and SY in the treatment of AO and AI rats. Social isolation combined with the resident-intruder paradigm was used to establish the anger-out and AI rats models. On this basis, GABA content in the dorsal raphe nucleus (DRN) and serotonin (5-HT) contents in these brain regions were detected using ELISA after various time courses (0, 1, 3, 5, and 7 days) treated with BXD and SY. Co-expression of 5-HT and GB1 in the DRN was detected. GB1-specific agonist baclofen and GB1-specific inhibitor CGP35348 were injected into the DRN. Changes in 5-HT levels in these brain regions were then detected. After treatment, rats in the BXD group exhibited lower aggressive behavior scores, longer latencies of aggression, lower total distances in the open field test, and a higher sucrose preference coefficient. Meanwhile, rats in the SY group exhibited higher aggressive behavior scores, shorter latencies of aggression, higher total distances in the open field test, and higher sucrose preference coefficients. With increasing medication duration, 5-HT levels in these brain regions were increased gradually, whereas GABA levels in the DRN were decreased gradually, and all recovered to normal levels by the 7th day. A large number of 5-HT-positive cells could be found in the immunofluorescence section in the DRN containing GABABR1 (GB1)-positive cells, indicating that 5-HT neurons in the DRN co-expressed with GB1. Furthermore, after the drug intervention, the 5-HT level in the DRN was elevated to a normal level, and the GB1 level in the DRN was decreased to a normal level. After the microinjection of baclofen into the DRN, the 5-HT contents in these brain regions were decreased. By contrast, the 5-HT contents were increased after injection with CGP35348. BXD and SY could effectively improve the abnormal behavior changes of AO and AI rats, and the optimal duration of action was 7 days. The improvement way is as follows: Decreased abnormal increase of GABA and GB1 in the DRN further mediated synaptic inhibition and increased 5-HT level in the DRN, leading to increased 5-HT levels in the PFC, hypothalamus, and hippocampus. Therefore, GB1-mediated GABA in the DRN could regulate 5-HT levels in these brain regions, which may be one of the ways by which BXD and SY treat AO and AI, respectively.
Collapse
|
3
|
Cai M, Shao W, Yu H, Hong Y, Shi L. Paeonol Inhibits Cell Proliferation, Migration and Invasion and Induces Apoptosis in Hepatocellular Carcinoma by Regulating miR-21-5p/KLF6 Axis. Cancer Manag Res 2020; 12:5931-5943. [PMID: 32765094 PMCID: PMC7381818 DOI: 10.2147/cmar.s254485] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 06/24/2020] [Indexed: 12/12/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is one of the most common tumors with high mortality. MicroRNAs (miRNAs) were reported as crucial markers for the diagnosis of HCC. Paeonol exerted many pharmacological effects on tumor progression. This study aimed to elucidate the underlying molecular mechanism of paeonol in HCC progression. Methods Cell viability was determined by Cell Counting Kit-8 (CCK-8) assay. Cell apoptosis was examined by flow cytometry. The levels of Cyclin D1, cyclin-dependent kinase 4 (CDK4), B-cell lymphoma-2 (Bcl-2) and Bcl-2 associated X protein (Bax) were detected by Western blot assay. Cell migration and invasion were assessed by transwell assay. The levels of matrix metalloproteinase-2 (MMP2) and matrix metalloproteinase-9 (MMP9) were measured by Western blot. The expression of miR-21-5p and kruppel-like factor 6 (KLF6) was detected by quantitative real-time PCR (qRT-PCR) or Western blot assay, respectively. Dual-luciferase reporter assay was performed to analyze the interaction between miR-21-5p and KLF6. The enrichment of miR-21-5p was determined by RNA pull-down assay. Xenograft assay was conducted to analyze tumor growth in vivo. Results The results demonstrated that cell viability of Hep3B and Huh-7 cells was inhibited, while cell apoptosis was promoted after treatment with paeonol. Transwell assay indicated that cell migration and invasion were blocked in paeonol-treated cells. Moreover, miR-21-5p expression was markedly decreased in paeonol-treated cells and its knockdown suppressed cell viability, migration and invasion, but contributed to cell apoptosis. MiR-21-5p targeted KLF6 and its silencing prominently elevated KLF6 level. Furthermore, the restoration experiment determined that miR-21-5p and KLF6 were antagonisms on cell viability, apoptosis, migration and invasion. Also, paeonol abated the decrease in KLF6 level caused by miR-21-5p up-regulation. Besides, paeonol suppressed tumor growth in vivo. Conclusion Paeonol impeded cell viability, migration and invasion and triggered apoptosis by regulating miR-21-5p/KLF6 axis in HCC cells. Xenograft assay confirmed that paeonol inhibited tumor growth through miR-21-5p/KLF6 axis in HCC in vivo.
Collapse
Affiliation(s)
- Miaoguo Cai
- Department of Medical Oncology, Luqiao Branch of Taizhou Hospital, Taizhou City, Zhejiang Province, People's Republic of China
| | - Wei Shao
- Department of Medical Oncology, Luqiao Branch of Taizhou Hospital, Taizhou City, Zhejiang Province, People's Republic of China
| | - Huijun Yu
- Department of Pediatric, Luqiao Branch of Taizhou Hospital, Taizhou City, Zhejiang Province, People's Republic of China
| | - Ye Hong
- Department of Medical Oncology, Luqiao Branch of Taizhou Hospital, Taizhou City, Zhejiang Province, People's Republic of China
| | - Lili Shi
- Department of Infection, Luqiao Branch of Taizhou Hospital, Taizhou City, Zhejiang Province, People's Republic of China
| |
Collapse
|
4
|
Jiang Y, Li Y, Yang T, Shi X, Suo H, Zhang W, Xu G, Li W. Design, synthesis, and antilung adenocarcinoma activity research of novel paeonol Schiff base derivatives containing a 1,2,3‐triazole moiety. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201800491] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yuqin Jiang
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of EducationSchool of Chemistry and Chemical Engineering, Henan Normal University Xinxiang P. R. China
| | - Yanyan Li
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of EducationSchool of Chemistry and Chemical Engineering, Henan Normal University Xinxiang P. R. China
| | - Tingting Yang
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of EducationSchool of Chemistry and Chemical Engineering, Henan Normal University Xinxiang P. R. China
| | - Xin Shi
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of EducationSchool of Chemistry and Chemical Engineering, Henan Normal University Xinxiang P. R. China
| | - Huajun Suo
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of EducationSchool of Chemistry and Chemical Engineering, Henan Normal University Xinxiang P. R. China
| | - Weiwei Zhang
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of EducationSchool of Chemistry and Chemical Engineering, Henan Normal University Xinxiang P. R. China
| | - Guiqing Xu
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of EducationSchool of Chemistry and Chemical Engineering, Henan Normal University Xinxiang P. R. China
| | - Wei Li
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of EducationSchool of Chemistry and Chemical Engineering, Henan Normal University Xinxiang P. R. China
| |
Collapse
|
5
|
Zhang L, Ma C, Gu R, Zhang M, Wang X, Yang L, Liu Y, Zhou Y, He S, Zhu D. Paeonol regulates hypoxia-induced proliferation of pulmonary artery smooth muscle cells via EKR 1/2 signalling. Eur J Pharmacol 2018; 834:257-265. [DOI: 10.1016/j.ejphar.2018.07.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 07/11/2018] [Accepted: 07/12/2018] [Indexed: 01/08/2023]
|
6
|
Lyu ZK, Li CL, Jin Y, Liu YZ, Zhang X, Zhang F, Ning LN, Liang ES, Ma M, Gao W, Zhang MX, Liu DS. Paeonol exerts potential activities to inhibit the growth, migration and invasion of human gastric cancer BGC823 cells via downregulating MMP‑2 and MMP‑9. Mol Med Rep 2017; 16:7513-7519. [PMID: 28944890 PMCID: PMC5865884 DOI: 10.3892/mmr.2017.7576] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Accepted: 07/24/2017] [Indexed: 12/11/2022] Open
Abstract
Paeonol (Pae) is an herbal extract that has attracted extensive attention for its anti-cancer effects demonstrated by a number of studies, which have predominantly demonstrated inhibition of cell proliferation and induction of apoptosis. The influence of Pae on cancer cell metastasis has been less widely reported. The present study aimed to investigate the under-reported effects of Pae on the growth, invasion and migration of poorly differentiated BGC823 gastric cancer cells with strong invasive and metastatic abilities. The anti-proliferative and pro-apoptotic effects of Pae on BGC823 cells were verified by Cell Counting kit-8 and Annexin V-fluorescein isothiocyanate/propidium iodide assays. Cell scratch-wound healing and Transwell methods were applied, and it was demonstrated that Pae could exert inhibitory activities on the invasion and migration of BGC823 cells. Furthermore, it was indicated by western blot analysis that Pae could downregulate the protein expression levels of matrix metalloproteinase (MMP)-2 and −9 in a concentration-dependent manner, which may support a novel potential mechanism accounting for its anti-cancer effects on gastric cancer.
Collapse
Affiliation(s)
- Zhong-Kuan Lyu
- Department of Traditional Chinese Medicine, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Chang-Ling Li
- Department of Traditional Chinese Medicine, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Yan Jin
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China
| | - Yu-Zhao Liu
- Shandong University School of Medicine, Jinan, Shandong 250012, P.R. China
| | - Xi Zhang
- Shandong University School of Medicine, Jinan, Shandong 250012, P.R. China
| | - Fang Zhang
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China
| | - Lu-Ning Ning
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China
| | - Er-Shun Liang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Min Ma
- Department of Traditional Chinese Medicine, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Wei Gao
- Department of Traditional Chinese Medicine, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Ming-Xiang Zhang
- Key Laboratory of Cardiovascular Remodeling and Function Research, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - De-Shan Liu
- Department of Traditional Chinese Medicine, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| |
Collapse
|
7
|
He RX, Ye X, Li R, Chen W, Ge T, Huang TQ, Nie XJ, Chen HJT, Peng DY, Chen WD. PEGylated niosomes-mediated drug delivery systems for Paeonol: preparation, pharmacokinetics studies and synergistic anti-tumor effects with 5-FU. J Liposome Res 2016; 27:161-170. [DOI: 10.1080/08982104.2016.1191021] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Rui-Xi He
- Anhui University of Chinese Medicine, Hefei, Anhui, PR China
| | - Xi Ye
- Anhui University of Chinese Medicine, Hefei, Anhui, PR China
| | - Rui Li
- Anhui University of Chinese Medicine, Hefei, Anhui, PR China
| | - Wei Chen
- Anhui University of Chinese Medicine, Hefei, Anhui, PR China
| | - Tao Ge
- Anhui University of Chinese Medicine, Hefei, Anhui, PR China
| | - Tian-Qing Huang
- Anhui University of Chinese Medicine, Hefei, Anhui, PR China
| | - Xiang-Jiang Nie
- Anhui University of Chinese Medicine, Hefei, Anhui, PR China
| | - He-Jun-Tao Chen
- Anhui University of Chinese Medicine, Hefei, Anhui, PR China
| | - Dai-Yin Peng
- Anhui University of Chinese Medicine, Hefei, Anhui, PR China
| | - Wei-Dong Chen
- Anhui University of Chinese Medicine, Hefei, Anhui, PR China
| |
Collapse
|
8
|
Xie Y, Jiang ZH, Zhou H, Ma WZ, Wong YF, Liu ZQ, Liu L. The pharmacokinetic study of sinomenine, paeoniflorin and paeonol in rats after oral administration of a herbal product Qingfu Guanjiesu capsule by HPLC. Biomed Chromatogr 2014; 28:1294-302. [DOI: 10.1002/bmc.3165] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 01/06/2014] [Accepted: 01/17/2014] [Indexed: 01/25/2023]
Affiliation(s)
- Ying Xie
- State Key Laboratory for Quality Research of Chinese Medicines; Macau University of Science and Technology; Avenida Wai Long, Taipa Macau
| | - Zhi-Hong Jiang
- State Key Laboratory for Quality Research of Chinese Medicines; Macau University of Science and Technology; Avenida Wai Long, Taipa Macau
| | - Hua Zhou
- State Key Laboratory for Quality Research of Chinese Medicines; Macau University of Science and Technology; Avenida Wai Long, Taipa Macau
| | - Wen-Zhe Ma
- State Key Laboratory for Quality Research of Chinese Medicines; Macau University of Science and Technology; Avenida Wai Long, Taipa Macau
| | - Yuen-Fan Wong
- School of Chinese Medicine; Hong Kong Baptist University; Kowloon Tong Hong Kong
| | - Zhong-Qiu Liu
- School of Pharmacy; Southern Medical University; Guangzhou China
| | - Liang Liu
- State Key Laboratory for Quality Research of Chinese Medicines; Macau University of Science and Technology; Avenida Wai Long, Taipa Macau
| |
Collapse
|
9
|
Lei Y, Li HX, Jin WS, Peng WR, Zhang CJ, Bu LJ, Du YY, Ma T, Sun GP. The radiosensitizing effect of Paeonol on lung adenocarcinoma by augmentation of radiation-induced apoptosis and inhibition of the PI3K/Akt pathway. Int J Radiat Biol 2013; 89:1079-86. [PMID: 23875954 DOI: 10.3109/09553002.2013.825058] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
PURPOSE To investigate the radiosensitizing effect and mechanism of action by the natural product Paeonol on lung adenocarcinoma both in vitro and in vivo. MATERIALS AND METHODS Two lung adenocarcinoma cell lines (human lung adenocarcinoma cell line A549 and mouse Lewis lung carcinoma (LLC) cell line) were chosen for this research. In order to select the experimental concentrations of Paeonol, cytotoxicity was determined using a MTT (3-[4,5-dimethylthiazol-2-yl]-2,5- diphenyltetrazolium bromide) assay. A clonogenic assay was performed to measure the radiosensitizing effects. Apoptosis was determined by the Tunel (terminal deoxynucleotidyl transferase-mediated dUTP nick and labeling) assay and flow cytometry. Protein expression was analyzed by Western blotting. To test the radiosensitizing effect in vivo, a transplanted tumor model was established. RESULTS The MTT assay showed that Paeonol inhibited proliferation of cells. Paeonol concentration ranged from an IC5 (5% inhibiting concentration) to an IC20 and was used at non-toxic concentrations for subsequent experiments. The clonogenic assay showed that Paeonol enhanced the radiosensitivity of cells. Data from the Tunel assay and flow cytometry verified that Paeonol enhanced radiation-induced apoptosis. Paeonol inhibited the activation of the PI3K/AKT (Phosphatidylinositol 3-kinase/ Protein Kinase B) pathway and down-regulated the expression of COX-2 (Cyclooxygenase-2) and Survivin. Paeonol (1718 mg/kg) combined with 10 Gy irradiation inhibited the growth of a transplanted tumor model in vivo, resulting in the longest tumor growth time, tumor growth delay and the highest inhibition ratio when compared with the radiotherapy alone group. CONCLUSIONS It is reported for the first time that Paeonol has a radiosensitizing effect on lung adenocarcinoma both in vitro and in vivo. This effect could be related to the augmentation of radiation-induced apoptosis and the inhibition of the PI3K/Akt signalling pathway and its downstream proteins: COX-2 and Survivin.
Collapse
Affiliation(s)
- Yu Lei
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University , Hefei
| | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Fan L, Song B, Sun G, Ma T, Zhong F, Wei W. Endoplasmic reticulum stress-induced resistance to doxorubicin is reversed by paeonol treatment in human hepatocellular carcinoma cells. PLoS One 2013; 8:e62627. [PMID: 23658755 PMCID: PMC3643935 DOI: 10.1371/journal.pone.0062627] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 03/22/2013] [Indexed: 01/28/2023] Open
Abstract
Background Endoplasmic reticulum stress (ER stress) is generally activated in solid tumors and results in tumor cell anti-apoptosis and drug resistance. Paeonol (Pae, 2-hydroxy-4-methoxyacetophenone), is a natural product extracted from the root of Paeonia Suffruticosa Andrew. Although Pae displays anti-neoplastic activity and increases the efficacy of chemotherapeutic drugs in various cell lines and in animal models, studies related to the effect of Pae on ER stress–induced resistance to chemotherapeutic agents in hepatocellular carcinoma (HCC) are poorly understood. Methodology/Principal Findings In this study, we investigated the effect of the endoplasmic reticulum (ER) stress response during resistance of human hepatocellular carcinoma cells to doxorubicin. Treatment with the ER stress-inducer tunicamycin (TM) before the addition of doxorubicin reduced the rate of apoptosis induced by doxorubicin. Interestingly, co-pretreatment with tunicamycin and Pae significantly increased apoptosis induced by doxorubicin. Furthermore, induction of ER stress resulted in increasing expression of COX-2 concomitant with inactivation of Akt and up-regulation of the pro-apoptotic transcription factor CHOP (GADD153) in HepG2 cells. These cellular changes in gene expression and Akt activation may be an important resistance mechanism against doxorubicin in hepatocellular carcinoma cells undergoing ER stress. However, co-pretreatment with tunicamycin and Pae decreased the expression of COX-2 and levels of activation of Akt as well as increasing the levels of CHOP in HCC cells. Conclusions/Significance Our results demonstrate that Pae reverses ER stress–induced resistance to doxorubicin in human hepatocellular carcinoma cells by targeting COX-2 mediated inactivation of PI3K/AKT/CHOP.
Collapse
Affiliation(s)
- Lulu Fan
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Bing Song
- Department of Cardiovasology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Guoping Sun
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- * E-mail:
| | - Tai Ma
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Fei Zhong
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, Anhui, China
| |
Collapse
|
11
|
Li M, Tan SY, Zhang J, You HX. Effects of paeonol on intracellular calcium concentration and expression of RUNX3 in LoVo human colon cancer cells. Mol Med Rep 2013; 7:1425-30. [PMID: 23504038 DOI: 10.3892/mmr.2013.1372] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2012] [Accepted: 03/12/2013] [Indexed: 11/06/2022] Open
Abstract
Paeonol, a major phenolic component of the root bark of Paeonia moutan, is known to exhibit antitumor effects. However, the underlying mechanisms remain unknown. In the present study, the effects of paeonol on cell viability, intracellular calcium concentration and the expression of runt‑related transcription factor 3 (RUNX3) were analyzed in LoVo human colon cancer cells. Results revealed that paeonol markedly reduced LoVo cell viability in a time‑ and dose‑dependent manner. Flow cytometry assays demonstrated that paeonol blocked the cell cycle at the G1 to S transition and significantly induced apoptosis in LoVo cells. Intracellular calcium accumulation occurred following a 48 h treatment with paeonol. Furthermore, RUNX3 gene expression was increased in paeonol‑treated cells. These observations indicate that paeonol possesses antiproliferative properties and apoptosis‑inducing activity. One of the antitumor mechanisms of paeonol may be its apoptosis‑inducing activity through an increased intracellular calcium concentration and the upregulation of RUNX3 expression. Paeonol may be a promising antitumor agent for colon carcinoma treatment.
Collapse
Affiliation(s)
- Ming Li
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, PR China
| | | | | | | |
Collapse
|
12
|
|
13
|
Hinz M, Stein A, Uncini T. APRESS: apical regulatory super system, serotonin, and dopamine interaction. Neuropsychiatr Dis Treat 2011; 6:1603-10. [PMID: 21857786 PMCID: PMC3157489 DOI: 10.2147/ijn.s22667] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND THE MONOAMINES SEROTONIN AND DOPAMINE ARE KNOWN TO EXIST IN TWO SEPARATE STATES: the endogenous state and the competitive inhibition state. The presence of the competitive inhibition state has been known to science for many years, but from a functional standpoint it has been noted in the literature as being "meaningless." METHODS A large database of monoamine transporter response to amino acid precursor administration variations with clinical outcomes was accumulated. In the process, a new organic cation transporter (OCT) model has been published, and OCT functional status determination along with amino acid precursor manipulation methods have been invented and refined. RESULTS Methodology was developed whereby manipulation of the OCT, in the competitive inhibition state, is carried out in a predictable manner. This, in turn, has disproved the long-held assertion that the monoamine competitive inhibition state is functionally meaningless. CONCLUSION The most significant aspect of this paper is the documentation of newly recognized relationships between serotonin and dopamine. When transport of serotonin and dopamine are both in the competitive inhibition state, manipulation of the concentrations of one will lead to predictable changes in concentrations of the other. From a functional standpoint, processes regulated and controlled by changes to only serotonin can now be controlled by changes to dopamine, and vice versa, in a predictable manner.
Collapse
Affiliation(s)
- Marty Hinz
- Clinical Research, NeuroResearch Clinics, Inc, Cape Coral, FL, USA
| | | | | |
Collapse
|
14
|
Li N, Fan LL, Sun GP, Wan XA, Wang ZG, Wu Q, Wang H. Paeonol inhibits tumor growth in gastric cancer in vitro and in vivo. World J Gastroenterol 2010; 16:4483-90. [PMID: 20845518 PMCID: PMC2941074 DOI: 10.3748/wjg.v16.i35.4483] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the anti-tumor effects of paeonol in gastric cancer cell proliferation and apoptosis in vitro and in vivo.
METHODS: Murine gastric cancer cell line mouse forestomach carcinoma (MFC) or human gastric cancer cell line SGC-7901 was cultured in the presence or absence of paeonol. Cell proliferation was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, and cell cycle and apoptosis by flow cytometry and TUNEL staining. Tumor growth after subcutaneous implantation of MFC cells in mice was monitored, and the effects of treatment with paeonol were determined.
RESULTS: In vitro, paeonol caused dose-dependent inhibition on cell proliferation and induced apoptosis. Cell cycle analysis revealed a decreased proportion of cells in G0/G1 phase, with arrest at S. Paeonol treatment in gastric cancer cell line MFC and SGC-790 cells significantly reduced the expression of Bcl-2 and increased the expression of Bax in a concentration-related manner. Administration of paeonol to MFC tumor-bearing mice significantly lowered the tumor growth and caused tumor regression.
CONCLUSION: Paeonol has significantly growth-inhibitory and apoptosis-inducing effects in gastric cancer cells both in vitro and in vivo.
Collapse
|
15
|
Gao X, Yu Z, Zhao Y, Men L, Wang Q, Wang Z, Chen X, Xiao W, Bi K. Development of an LC Method for Simultaneous Analysis of Cinnamic Acid and Paeonol in Rat Plasma, and Its Application to a Pharmacokinetic Study after Intragastric Administration of Guizhi–Fuling Capsule. Chromatographia 2009. [DOI: 10.1365/s10337-009-1188-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
16
|
Development of rat urinary HPLC-UV profiling for metabonomic study on Liuwei Dihuang Pills. J Pharm Biomed Anal 2009; 49:492-7. [DOI: 10.1016/j.jpba.2008.10.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2008] [Revised: 10/13/2008] [Accepted: 10/19/2008] [Indexed: 11/21/2022]
|
17
|
Wan XA, Sun GP, Wang H, Xu SP, Wang ZG, Liu SH. Synergistic effect of paeonol and cisplatin on oesophageal cancer cell lines. Dig Liver Dis 2008; 40:531-9. [PMID: 18339596 DOI: 10.1016/j.dld.2008.01.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2007] [Revised: 01/25/2008] [Accepted: 01/30/2008] [Indexed: 12/11/2022]
Abstract
BACKGROUND/AIM Paeonol, a phenolic component from the root bark of Paeonia moutan, has shown great promise in antitumour activities in our previous studies. The present study was designed to investigate whether paeonol has synergistic effect with cisplatin on the growth-inhibitory of human oesophageal cancer cell lines and the possible mechanism. METHODS Cell viability was measured by MTT assay. Drug-drug interactions were analysed by the coefficient of drug interaction. Apoptosis was detected by acridine orange fluorescence staining and flow cytometry assay. Bcl-2, Bax and caspase-3 expression was assayed by immunohistochemical staining. RESULTS A synergistic inhibitory effect on viability of the two cell lines was observed after combination of paeonol with various concentrations of cisplatin. Further study showed the combination induced greater apoptosis than the groups treated with paeonol or cisplatin alone. The expression of Bcl-2 was decreased and that of Bax was increased in treatment groups, especially in the combination group, with the ratio of Bcl-2/Bax decreased correspondingly. And the combination also resulted in greater activation of caspase-3 than did either agent alone. CONCLUSIONS Paeonol, in combination with cisplatin, had a significantly synergistic growth-inhibitory effect on oesophageal cell line, which may be related to apoptosis induction.
Collapse
Affiliation(s)
- X-A Wan
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Ji Xi Road 210, Hefei 230022, PR China
| | | | | | | | | | | |
Collapse
|
18
|
Sun GP, Wan X, Xu SP, Wang H, Liu SH, Wang ZG. Antiproliferation and apoptosis induction of paeonol in human esophageal cancer cell lines. Dis Esophagus 2008; 21:723-9. [PMID: 18522637 DOI: 10.1111/j.1442-2050.2008.00840.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The incidence of esophageal cancer (EC), especially adenocarcinoma, has increased tremendously in Western countries and the prognosis of EC remains poor. Paeonol (Pae), a phenolic component from the root bark of Paeonia moutan, possesses antitumor effects in vitro and in vivo. The present study showed that Pae had an antiproliferative effect on the two human EC cell lines (SEG-1 and Eca-109), with different sensitivities to Pae. Acridine orange staining and flow cytometry assays showed that Pae induced apoptosis on the two cell lines. Further analyses indicated that Pae resulted in a cell cycle arrest at S-phase. Immunohistochemical staining showed the expression of Bcl-2 was decreased and that of Bax was increased in treatment groups, with the ratio of Bcl-2/Bax decreased correspondingly. The results show that Pae shows growth inhibitory and apoptosis induction property and may be a promising agent for the EC treatment.
Collapse
Affiliation(s)
- G-P Sun
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | | | | | | | | | | |
Collapse
|
19
|
Xiao Y, Zhang YH, Sheng YX, Zhang JL. LC-MS determination and pharmacokinetic studies of paeonol in rat plasma after administration of different compatibility of Su-Xiao-Xin-Tong prescriptions. Biomed Chromatogr 2008; 22:527-34. [DOI: 10.1002/bmc.964] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
20
|
Protective effects of paeonol on cultured rat hippocampal neurons against oxygen–glucose deprivation-induced injury. J Neurol Sci 2008; 264:50-5. [DOI: 10.1016/j.jns.2007.06.057] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2007] [Revised: 06/17/2007] [Accepted: 06/28/2007] [Indexed: 11/17/2022]
|
21
|
Study on the pharmacokinetics and metabolism of paeonol in rats treated with pure paeonol and an herbal preparation containing paeonol by using HPLC-DAD-MS method. J Pharm Biomed Anal 2007; 46:748-56. [PMID: 18215489 DOI: 10.1016/j.jpba.2007.11.046] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2007] [Revised: 11/22/2007] [Accepted: 11/26/2007] [Indexed: 11/22/2022]
Abstract
Paeonol, a principal bioactive component of the Chinese herb Moutan Cortex with anti-inflammatory and analgesic effects, was comparatively studied to determine its pharmacokinetic behavior and metabolic profile in rat following oral administration of the pure paeonol alone and an herbal preparation "Qingfu Guanjieshu" (QFGJS) containing paeonol. An HPLC-DAD method was developed and validated for determining the concentration of paeonol in rat plasma. The in vivo time curves and AUC of paeonol at three doses were increased in a dose-dependent manner, while the pharmacokinetic parameters of paeonol in QFGJS at a comparable dosage were significantly elevated in comparison with those of pure paeonol. By using LC-Q/TOF-MS technique, four metabolites of paeonol were identified in plasma at 5min after dosing, with T(max) around 20min after treatment with the pure paeonol or QFGJS. Interestingly, relative concentrations of metabolites P2, P3 and P5 were markedly increased in plasma of rats treated with QFGJS compared with those of pure paeonol. These results indicate that other components in QFGJS could effectively influence the pharmacokinetic behavior and metabolic profile of paeonol in rats. The current studies emphasize the significance of the research toward an understanding of pharmacokinetic interactions of the co-existing components in the herbal preparations.
Collapse
|
22
|
Xu SP, Sun GP, Shen YX, Peng WR, Wang H, Wei W. Synergistic effect of combining paeonol and cisplatin on apoptotic induction of human hepatoma cell lines. Acta Pharmacol Sin 2007; 28:869-78. [PMID: 17506946 DOI: 10.1111/j.1745-7254.2007.00564.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
AIM To investigate whether paeonol (Pae) has synergistic effects with cisplatin (CDDP) on the growth-inhibition and apoptosis-induction of human hepatoma cell lines HepG2 and SMMC-7721. METHODS The cytotoxic effect of drugs was measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide assay. The coefficient of drug interaction was used to analyze the nature of drug interactions. Morphological changes were observed by acridine orange fluorescence staining. Cell cycle and the apoptosis rate were detected by flow cytometry. Bcl-2 and Bax expression were assayed by immunohistochemical staining. RESULTS Pae or CDDP had antiproliferative effect on the 2 cell lines in a dose-dependent manner, with different sensitivities to drugs. More interestingly, a synergistic inhibitory effect on the viability of the 2 cell lines was observed after treatment with a combination of Pae (15.63, 31.25, and 62.5 mg/L) with various concentrations of CDDP. Further study showed typical morphological changes of apoptosis if the cells were exposed to the two agents for 24 h. The apoptotic rate of the cells with combination treatment was significantly higher than that of cells treated with Pae or CDDP alone. The expression of Bcl-2 decreased and that of Bax increased in the treated groups, especially in the combination group, with the ratio of Bcl-2/Bax decreasing correspondingly. Additionally, a combination of Pae with CDDP resulted in a stronger S phase arrest, compared with Pae or CDDP alone. CONCLUSION Pae, in combination with CDDP, had a significantly synergistic growth-inhibitory and apoptosis-inducing effect on the 2 human hepatoma cell lines, which may be useful in hepatoma treatment.
Collapse
Affiliation(s)
- Shu-Ping Xu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immunological Pharmacology, Key Laboratory of Research and Development of Chinese Medicine, Hefei 230032, China.
| | | | | | | | | | | |
Collapse
|
23
|
Xu SP, Sun GP, Shen YX, Wei W, Peng WR, Wang H. Antiproliferation and apoptosis induction of paeonol in HepG 2 cells. World J Gastroenterol 2007; 13:250-6. [PMID: 17226904 PMCID: PMC4065953 DOI: 10.3748/wjg.v13.i2.250] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the antiproliferative effect of paeonol (Pae) used alone or in combination with chemotherapeutic agents [cisplatin (CDDP), doxorubicin (DOX) and 5-fluorouracil (5-FU)] on human hepatoma cell line HepG2 and the possible mechanisms.
METHODS: The cytotoxic effect of drugs on HepG2 cells was measured by 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetra-zolium bromide (MTT) assay. Morphologic changes were observed by acridine orange (AO) fluorescence staining. Cell cycle and apoptosis rate were detected by flow cytometry (FCM). Drug-drug interactions were analyzed by the coefficient of drug interaction (CDI).
RESULTS: Pae (7.81-250 mg/L) had an inhibitory effect on the proliferation of HepG2 cells in a dose-dependent manner, with the IC50 value of (104.77 ± 7.28) mg/L. AO fluorescence staining and FCM assays showed that Pae induced apoptosis and arrested cell cycle at S phase in HepG2 cells. Further, different extent synergisms were observed when Pae (15.63, 31.25, 62.5 mg/L) was combined with CDDP (0.31-2.5 mg/L), DOX (0.16-1.25 mg/L), or 5-FU (12.5-100 mg/L) at appropriate concentrations. The IC50 value of the three drugs decreased dramatically when combined with Pae (p < 0.01). Of the three different combinations, the sensitivity of cells to drugs was considerably different.
CONCLUSION: Pae had a significant growth-inhibitory effect on the human hepatoma cell line HepG2, which may be related to apoptosis induction and cell cycle arrest. It also can enhance the cytotoxicity of chemotherapeutic agents on HepG2 cells, and the S phase arrest induced by Pae may be one of the mechanisms of these interactions.
Collapse
Affiliation(s)
- Shu-Ping Xu
- Institute of Clinical Pharmacology of Anhui Medical University, Key Laboratory of Antiinflammatory and Immunological Pharmacology in Anhui Province, Hefei 230032, Anhui Province, China
| | | | | | | | | | | |
Collapse
|
24
|
Yu BS, Lai SG, Tan QL. Simultaneous determination of cinnamaldehyde, eugenol and paeonol in traditional Chinese medicinal preparations by capillary GC-FID. Chem Pharm Bull (Tokyo) 2006; 54:114-6. [PMID: 16394562 DOI: 10.1248/cpb.54.114] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A capillary GC method was established for simultaneous determination of cinnamaldehyde (CNMD), eugenol (EL) and paeonol (PL) in two traditional Chinese herbal medicinal preparations, Weitongding tablet (WTDT) and Guifu Dihuang pill (GDHP). The assays were based on a programmed temperature GC in a 30 m x 0.53 mm capillary column with nitrogen as carrier and FID detector. Good linearities were obtained over ranges of 0.45-452 mg/l CNMD, 0.31-625 mg/l EL and 0.30-610 mg/l PL, respectively. The spike recoveries were within 84-111%.
Collapse
Affiliation(s)
- Bing-Sheng Yu
- Department of Chemistry, Zhanjiang Normal College, China.
| | | | | |
Collapse
|
25
|
Chen G, Zhang L, Zhu Y. Determination of glycosides and sugars in Moutan Cortex by capillary electrophoresis with electrochemical detection. J Pharm Biomed Anal 2005; 41:129-34. [PMID: 16343840 DOI: 10.1016/j.jpba.2005.11.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2005] [Revised: 11/02/2005] [Accepted: 11/03/2005] [Indexed: 10/25/2022]
Abstract
A method based on capillary electrophoresis with electrochemical detection has been developed for the separation and determination of paeoniflorin, sucrose, paeonoside, glucose, and fructose in Moutan Cortex for the first time. Effects of several important factors such as the concentration of NaOH, separation voltage, injection time, and detection potential were investigated to acquire the optimum conditions. The detection electrode was a 300 microm diameter copper disc electrode at a working potential of +0.60 V (versus saturated calomel electrode (SCE)). The five analytes can be well-separated within 12 min in a 40 cm length fused silica capillary at a separation voltage of 12 kV in a 75 mM NaOH aqueous solution. The relation between peak current and analyte concentration was linear over about 3 orders of magnitude with detection limits (S/N = 3) ranging from 0.9 to 1.3 microM for all analytes. The proposed method has been successfully applied to monitor glycoside and sugar contents in the real plant samples with satisfactory assay results.
Collapse
Affiliation(s)
- Gang Chen
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China.
| | | | | |
Collapse
|
26
|
Zhao J, Yan W. Simultaneous determinations of paeonol and palmatine hydrochloride in Shangshi Aerosols by HPLC method. J Pharm Biomed Anal 2005; 38:571-5. [PMID: 15925262 DOI: 10.1016/j.jpba.2005.02.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2004] [Revised: 01/25/2005] [Accepted: 02/01/2005] [Indexed: 10/25/2022]
Abstract
A simple and rapid HPLC method was described for the simultaneous determination of paeonol and palmatine hydrochloride in Shangshi Aerosols. The optimum separation for these analytes was achieved using the mixture of 0.025 M sodium dihydrogen phosphate-acetonitrile-diethylamine (64:35:1, v/v/v) as the mobile phase and a Nova-Pak((R)) C8 column. The linear ranges of paeonol and palmatine hydrochloride were 0.2-80 and 0.06-60 microg/ml with the regression equations being Y=11716.4+2.96 x 10(6)X (R=0.99969), Y=-6388.8+1.89 x 10(5)X (R=0.99976), and limit of quantifications (LOQ) for paeonol and palmatine hydrochloride were 0.2 and 0.06 microg/ml, respectively (n=6). Other validation parameters: intra-day precision (R.S.D.: 0.71-1.65%) and inter-day precision (R.S.D.: 0.89-2.11%), and reproducibility (recoveries values: 94.6-98.2% for paeonol, 94.85-97.58% for palmatine hydrochloride) were found to be satisfactory. The proposed HPLC method had been applied for the determination of paeonol and palmatine hydrochloride in Shangshi Aerosols; R.S.D. values were 1.45 and 1.13%, respectively. In short, this method was rapid and convenient, which could be used for the routine control of paeonol and palmatine hydrochloride in Shangshi Aerosols.
Collapse
Affiliation(s)
- Jianwen Zhao
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, PR China.
| | | |
Collapse
|
27
|
Wu X, Chen H, Chen X, Hu Z. Determination of paeonol in rat plasma by high-performance liquid chromatography and its application to pharmacokinetic studies following oral administration of Moutan cortex decoction. Biomed Chromatogr 2003; 17:504-8. [PMID: 14648606 DOI: 10.1002/bmc.259] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Quantification of paeonol, the principal bioactive component of Moutan cortex, in rat plasma following oral administration of Moutan cortex decoction was achieved by using a simple and sensitive high-performance liquid chromatographic method. The calibration curves for paeonol were linear in both the low (25-200 ng/mL) and the high concentration range (200-4000 ng/mL) with r(2) values of 0.9928 and 0.9993, respectively. The coefficients of variation of intra- and inter-day assays were 14.36, 6.52, 1.76, 1.25, 5.36, 3.30 and 1.42% and 12.70, 1.19, 2.98, 1.91, 1.75, 1.78 and 0.96% at concentrations of 25, 50, 100, 200, 500, 1000 and 2000 ng/mL, respectively. The recoveries of paeonol from rat plasma were found to be 101.9, 104.5, 105.4 and 101.2% for concentrations of 50, 500, 1000 and 2000 ng/mL, respectively. The paeonol plasma concentrations were fitted to two-compartment model with fi rst order absorption. The mean terminal half-lives (t(1/2)) of paeonol was 80.9 min.
Collapse
Affiliation(s)
- Xinan Wu
- Department of Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China
| | | | | | | |
Collapse
|
28
|
Galloway JH, Marsh ID, Bittiner SB, Messenger AG, Gawkrodger DJ, Glet R, Forrest AR. Chinese herbs for eczema, the active compound? Lancet 1991; 337:566. [PMID: 1671938 DOI: 10.1016/0140-6736(91)91364-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|