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Hamidia Z, Shahanipour K, Talebian N, Monajemi R. Surface Modification of Poly(lactide-co-glycolide) Nanoparticles for the Sustained in vitro Release and the Enhanced Cytotoxicity of Chelidonine. Anticancer Agents Med Chem 2023; 23:1774-1782. [PMID: 37138432 DOI: 10.2174/1871520623666230502095349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/26/2023] [Accepted: 03/21/2023] [Indexed: 05/05/2023]
Abstract
BACKGROUND Chelidonine is a potent anticancer against several cell lines. However, low bioavailability and water solubility restrict the clinical applications of this compound. OBJECTIVE The aim of this research was to develop a novel formulation of chelidonine encapsulated in the nanoparticles of poly(d l-lactic-co-glycolic acid) (PLGA) employing vitamin E D-α-tocopherol acid polyethylene glycol 1000 succinate (E TPGS) as a modifier to increase bioavailability. METHODS Chelidonine-encapsulated PLGA nanoparticles were fabricated using a single emulsion method and modified by various concentrations of E TPGS. Nanoparticles were recognized in terms of morphology, surface charge, drug release, size, drug loading, and encapsulation efficiency to obtain the optimized formulation. The cytotoxicity of different nanoformulations in HT-29 cells was evaluated using the MTT assay. The cells were stained with propidium iodide and annexin V solution to evaluate apoptosis using flow cytometry. RESULTS Spherical nanoparticles prepared with 2% (w/v) of E TPGS had the optimum formulation in the nanometer size range (153 ± 12.3 nm), with a surface charge of -14.06 ± 2.21 mV, encapsulation efficiency of 95.58 ± 3.47%, drug loading of 33.13 ± 0.19%, and drug release profile of 73.54 ± 2.33. In comparison with non-modified nanoparticles and free chelidonine, E TPGS-modified nanoformulations improved anti-cancer capability even after three-months storage. CONCLUSION Our results showed that E TPGS is an effective biomaterial for surface modification of nanoparticles, which can serve as a potential treatment for cancer.
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Affiliation(s)
- Zahra Hamidia
- Department of Biochemistry, Islamic Azad University, Falavarjan Branch, Isfahan, Iran
| | - Kahin Shahanipour
- Department of Biochemistry, Islamic Azad University, Falavarjan Branch, Isfahan, Iran
| | - Nasrin Talebian
- Department of Chemistry, Islamic Azad University, Shahreza Branch, Shahreza, Iran
| | - Ramesh Monajemi
- Department of Biology, Islamic Azad University, Falavarjan Branch, Isfahan, Iran
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Xie YJ, Gao WN, Wu QB, Yao XJ, Jiang ZB, Wang YW, Wang WJ, Li W, Hussain S, Liu L, Leung ELH, Fan XX. Chelidonine selectively inhibits the growth of gefitinib-resistant non-small cell lung cancer cells through the EGFR-AMPK pathway. Pharmacol Res 2020; 159:104934. [PMID: 32464330 DOI: 10.1016/j.phrs.2020.104934] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/14/2020] [Accepted: 05/14/2020] [Indexed: 02/08/2023]
Abstract
Tyrosine kinase inhibitors (TKIs) have been widely used for the clinical treatment of patients with non-small cell lung cancer (NSCLC) harboring mutations in the EGFR. Unfortunately, due to the secondary mutation in EGFR, eventual drug-resistance is inevitable. Therefore, to overcome the resistance, new agent is urgently required. Chelidonine, extracted from the roots of Chelidonium majus, was proved to effectively suppress the growth of NSCLC cells with EGFR double mutation. Proteomics analysis indicated that mitochondrial respiratory chain was significantly inhibited by chelidonine, and inhibitor of AMPK effectively blocked the apoptosis induced by chelidonine. Molecular dynamics simulations indicated that chelidonine could directly bind to EGFR and showed a much higher binding affinity to EGFRL858R/T790M than EGFRWT, which demonstrated that chelidonine could selectively inhibit the phosphorylation of EGFR in cells with EGFR double-mutation. In vivo study revealed that chelidonine has a similar inhibitory effect like second generation TKI Afatinib. In conclusion, targeting EGFR and inhibition of mitochondrial function is a promising anti-cancer therapeutic strategy for inhibiting NSCLC with EGFR mutation and TKI resistance.
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Affiliation(s)
- Ya-Jia Xie
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China
| | - Wei-Na Gao
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China; Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, PR China
| | - Qi-Biao Wu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China
| | - Xiao-Jun Yao
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China
| | - Ze-Bo Jiang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China
| | - Yu-Wei Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China
| | - Wen-Jun Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China
| | - Wei Li
- TianJin NanKai Hospital, TianJin, PR China
| | - Shahid Hussain
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China
| | - Liang Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China.
| | - Elaine Lai-Han Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China.
| | - Xing-Xing Fan
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, SAR, PR China.
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Huang X, Cheng K, Liu L, Hu X, Gao X, Li H, Xu F, Li Z, Hua H, Li D. Design, synthesis and apoptosis-related antiproliferative activities of chelidonine derivatives. Bioorg Med Chem Lett 2020; 30:126913. [PMID: 31883693 DOI: 10.1016/j.bmcl.2019.126913] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 12/11/2019] [Accepted: 12/16/2019] [Indexed: 11/25/2022]
Abstract
To get chelidonine derivatives with enhanced antiproliferative activity and selectivity, a series of nitric oxide donating derivatives (10a-f and 11a-j) were designed, synthesized and biologically evaluated. Compared with chelidonine, these compounds exhibited lower IC50 values against human hepatoma cells HepG2, breast cancer cells MCF-7, colon cancer cells HCT-116, as well as leukemia cells K562. Compound 11j displayed the strongest antiproliferative activity with IC50 values of 3.91, 6.90, 4.36 and 1.12 μM against the above four cells, respectively. Nevertheless, it showed an IC50 value >40 μM against human peripheral blood mononuclear cells (PBMCs), which demonstrated high selectivity between normal and cancer blood cells. In further mechanism studies, 11j showed the capability to induce K562 cells apoptosis, S phase cell cycle arrest and mitochondrial membrane potential disorder. Besides, 11j was found to be effective in promoting the expression of proapoptotic protein Bad and suppressing the expression of anti-apoptotic proteins Bcl-xL, catalase, survivin, claspin and clusterin.
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Affiliation(s)
- Xueyan Huang
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Keguang Cheng
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, and School of Chemistry and Pharmacy, Guangxi Normal University, 15 Yucai Raod, Guilin 541004, PR China
| | - Lilin Liu
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Xu Hu
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Xiang Gao
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Haonan Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Fanxing Xu
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China.
| | - Zhanlin Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China
| | - Huiming Hua
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China.
| | - Dahong Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, PR China.
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Liu Y, Peng Y, Zhang Z, Guo X, Ji M, Zheng J. In vitro and in vivo studies of the metabolic activation of chelidonine. Chem Biol Interact 2019; 308:155-163. [PMID: 31102647 DOI: 10.1016/j.cbi.2019.05.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 04/18/2019] [Accepted: 05/08/2019] [Indexed: 11/27/2022]
Abstract
Chelidonium majus L. is a herbal medicine widely employed in Europe and Western Asia. Chelidonine (CHE) is a major constituent of the herb and has been reported to be an inhibitor of the cytochrome P450 enzymes (CYP). The major objective of the present study was to study the metabolic pathways of CHE in order to identify potential reactive metabolites responsible for the enzyme inhibition. Three oxidative metabolites (M1-M3) were detected in human liver microsomal incubations after exposure to CHE. M1 and M2 were two isomers of catechol derivatives, and M3 was a dicatechol compound. The M1-M3 metabolites were also observed in bile of rats given CHE. A total of five glutathione (GSH) conjugates (M4-M8) were detected in microsomes containing CHE, GSH, and NADPH. Moreover, M4 and M6 originated from M1, M5 and M7 resulted from M2, and M8 was a M3-derived GSH conjugate. Three biliary CHE-derived GSH conjugates (M4, M5 and M8) were found in CHE-treated rats. This indicates that CHE was bioactivated to ortho-quinone derivatives both in vitro and in vivo. Recombinant P450 enzyme incubations demonstrated that the CYPs3A4, 1A2, 2C19 and 2D6 were mainly involved in metabolic activation of CHE. This study generated data that may be useful in understanding possible mechanisms of CHE-induced P450 inhibition.
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Affiliation(s)
- Yuyang Liu
- College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, 110161, PR China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, PR China
| | - Zhengyu Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, PR China
| | - Xiucai Guo
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, PR China
| | - Mingshan Ji
- College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, 110161, PR China.
| | - Jiang Zheng
- State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning, 110016, PR China.
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Liao W, He X, Yi Z, Xiang W, Ding Y. Chelidonine suppresses LPS-Induced production of inflammatory mediators through the inhibitory of the TLR4/NF-κB signaling pathway in RAW264.7 macrophages. Biomed Pharmacother 2018; 107:1151-1159. [PMID: 30257328 DOI: 10.1016/j.biopha.2018.08.094] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 08/07/2018] [Accepted: 08/17/2018] [Indexed: 12/19/2022] Open
Abstract
Chelidonine is one of the alkaloids of Chelidonium majus, which has broad pharmacological activities, including anti-inflammatory. Despite chelidonine has been shown to exhibit anti-inflammatory activity, the molecular mechanisms are not yet fully elucidated. In this paper, we used RAW264.7 macrophages and mice to investigate the anti-inflammatory effects of chelidonine. Firstly, we found that chelidonine significantly suppressed LPS-induced the production of NO and PGE2, as well as iNOS and COX-2 mRNA and protein expression. In addition, pro-inflammatory cytokines induced by LPS, such as TNFα and IL-6 were also attenuated by chelidonine. What's more, LPS-induced activation and degradation of IκBα followed by translocation of the p65 from the cytoplasm to the nucleus were attenuated by chelidonine. Furthermore, chelidonine even significantly inhibited TLR4 expression induced by LPS. Finally, we verified that chelidonine striking ly decreased serum TNFα, IL-6 and PGE2 levels in LPS stimulated mice. Taken together, this study demonstrated that chelidonine may suppressed the LPS-induced inflammatory response both in vitro and in vivo, which was relating to TLR4/NF-κB signaling pathway disturbed by chelidonine.
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Affiliation(s)
- Wang Liao
- Department of Cardiology, Hainan General Hospital, Haikou 570102, China
| | - Xiaojie He
- Department of Nephropathy, Children's Medical Center, The Second Xiangya Hospital, Cal South University, Changsha 410000, China
| | - Zhuwen Yi
- Department of Nephropathy, Children's Medical Center, The Second Xiangya Hospital, Cal South University, Changsha 410000, China
| | - Wei Xiang
- Department of Pediatrics, Maternal and Child Health Care Hospital of Hainan Province, 15 LongKun-Nan Road, Haikou 570206, China.
| | - Yan Ding
- Department of Dermatology, Hainan Provincial Hospital of Skin Disease, 49 LongKun-Nan Road, Haikou 570206, China.
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Pan J, Yang Y, Zhang R, Yao H, Ge K, Zhang M, Ma L. Enrichment of chelidonine from Chelidonium majus L. using macroporous resin and its antifungal activity. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1070:7-14. [PMID: 29102247 DOI: 10.1016/j.jchromb.2017.10.029] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 10/13/2017] [Accepted: 10/14/2017] [Indexed: 12/11/2022]
Abstract
Chelidonium majus L. (greater celandine) has been used as an herbal medicine for several centuries. This study investigated an efficient method to purify chelidonine from the extract of C. majus L. using macroporous adsorption resins and evaluated the antifungal activity of chelidonine against Botryosphaeria dothidea as a model strain. Static adsorption and desorption tests revealed that D101 was the optimal resin for chelidonine purification. Pseudo-second-order kinetics model and Freundlich equation model were the most suitable for evaluating the endothermic and spontaneous adsorption processes of chelidonine on D101. Dynamic adsorption and desorption tests on D101 columns showed that the concentration of chelidonine increased 14.16-fold, from 2.67% to 37.81%, with the recovery yield of 80.77%. The antifungal activity of enriched chelidonine products was studied with B. dothidea. The results showed that the EC50 of crude extracts, enriched chelidonine products, and chelidonine standard against B. dothidea were 3.24mg/mL, 0.43mg/mL, and 0.77mg/mL, respectively. The result of antifungal activity test showed that chelidonine had the potential to be a useful antifungal agent. Moreover, the enrichment method of chelidonine was highly efficient, low cost, and harmless to the environment for industrial applications.
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Affiliation(s)
- Jialiang Pan
- College of Forestry, Northeast Forestry University, Harbin, China.
| | - Yang Yang
- College of Forestry, Northeast Forestry University, Harbin, China.
| | - Rui Zhang
- School of Life Science, Heilongjiang University, Harbin, China.
| | - Hanwen Yao
- College of Forestry, Northeast Forestry University, Harbin, China.
| | - Kangkang Ge
- College of Forestry, Northeast Forestry University, Harbin, China.
| | - Manyin Zhang
- Institute of New Technology Applications, Chinese Academy of Forestry, Beijing, China.
| | - Ling Ma
- College of Forestry, Northeast Forestry University, Harbin, China.
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Noureini SK, Esmaeili H, Abachi F, Khiali S, Islam B, Kuta M, Saboury AA, Hoffmann M, Sponer J, Parkinson G, Haider S. Selectivity of major isoquinoline alkaloids from Chelidonium majus towards telomeric G-quadruplex: A study using a transition-FRET (t-FRET) assay. Biochim Biophys Acta Gen Subj 2017; 1861:2020-2030. [PMID: 28479277 DOI: 10.1016/j.bbagen.2017.05.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 04/18/2017] [Accepted: 05/01/2017] [Indexed: 01/26/2023]
Abstract
BACKGROUND Natural bioproducts are invaluable resources in drug discovery. Isoquinoline alkaloids of Chelidonium majus constitute a structurally diverse family of natural products that are of great interest, one of them being their selectivity for human telomeric G-quadruplex structure and telomerase inhibition. METHODS The study focuses on the mechanism of telomerase inhibition by stabilization of telomeric G-quadruplex structures by berberine, chelerythrine, chelidonine, sanguinarine and papaverine. Telomerase activity and mRNA levels of hTERT were estimated using quantitative telomere repeat amplification protocol (q-TRAP) and qPCR, in MCF-7 cells treated with different groups of alkaloids. The selectivity of the main isoquinoline alkaloids of Chelidonium majus towards telomeric G-quadruplex forming sequences were explored using a sensitive modified thermal FRET-melting measurement in the presence of the complementary oligonucleotide CT22. We assessed and monitored G-quadruplex topologies using circular dichroism (CD) methods, and compared spectra to previously well-characterized motifs, either alone or in the presence of the alkaloids. Molecular modeling was performed to rationalize ligand binding to the G-quadruplex structure. RESULTS The results highlight strong inhibitory effects of chelerythrine, sanguinarine and berberine on telomerase activity, most likely through substrate sequestration. These isoquinoline alkaloids interacted strongly with telomeric sequence G-quadruplex. In comparison, chelidonine and papaverine had no significant interaction with the telomeric quadruplex, while they strongly inhibited telomerase at transcription level of hTERT. Altogether, all of the studied alkaloids showed various levels and mechanisms of telomerase inhibition. CONCLUSIONS We report on a comparative study of anti-telomerase activity of the isoquinoline alkaloids of Chelidonium majus. Chelerythrine was most effective in inhibiting telomerase activity by substrate sequesteration through G-quadruplex stabilization. GENERAL SIGNIFICANCE Understanding structural and molecular mechanisms of anti-cancer agents can help in developing new and more potent drugs with fewer side effects. Isoquinolines are the most biologically active agents from Chelidonium majus, which have shown to be telomeric G-quadruplex stabilizers and potent telomerase inhibitors.
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Affiliation(s)
- Sakineh Kazemi Noureini
- Department of Biology, Faculty of Basic Sciences, Hakim Sabzevari University, P.O.Box: 397, Sabzevar, Iran.
| | - Hosein Esmaeili
- Department of Biology, Faculty of Basic Sciences, Hakim Sabzevari University, P.O.Box: 397, Sabzevar, Iran
| | - Farzane Abachi
- Department of Biology, Faculty of Basic Sciences, Hakim Sabzevari University, P.O.Box: 397, Sabzevar, Iran
| | - Soraia Khiali
- UCL School of Pharmacy, Brunswick Square, London, UK
| | - Barira Islam
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Královopolská 135, 612 65 Brno, Czech Republic
| | | | - Ali A Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | | | - Jiri Sponer
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Královopolská 135, 612 65 Brno, Czech Republic; Central European Institute of Technology (CEITEC), Masaryk University, Campus Bohunice, Brno, Czech Republic
| | | | - Shozeb Haider
- UCL School of Pharmacy, Brunswick Square, London, UK.
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Kim SH, Hong JH, Lee YC. Chelidonine, a principal isoquinoline alkaloid of Chelidonium majus, attenuates eosinophilic airway inflammation by suppressing IL-4 and eotaxin-2 expression in asthmatic mice. Pharmacol Rep 2015; 67:1168-77. [PMID: 26481537 DOI: 10.1016/j.pharep.2015.04.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 04/16/2015] [Accepted: 04/17/2015] [Indexed: 11/24/2022]
Abstract
BACKGROUND Chelidonine, a major bioactive, isoquinoline alkaloid ingredient in Chelidonium majus, exhibits anti-inflammatory and other pharmacological properties. However, its molecular mechanisms in asthma remain unclear. In this work we investigated chelidonine's effect and mechanism in airway inflammation in a mouse model of allergic asthma. METHODS The mice were sensitized to ovalbumin followed by aerosol allergen challenges and determination of chelidonine's effect on enhanced pause (Penh), pulmonary eosinophilic infiltration, eotaxin-2, interleukin-4 (IL-4), IL-13, OVA-specific IgE production, and several transcription factors. RESULT Chelidonine strongly suppressed airway eosinophilia, expression of eotaxin-2, IL-4, and IL-13 cytokine production in bronchoalveolar lavage fluid (BALF). It also attenuated lung IL-17, and eotaxin-2 mRNA expression levels. Moreover, it suppressed eotaxin-2 and IL-17 production in accordance with up- and downregulation of forkhead box p3 (Foxp3), and signal transducer and activator of transcription (STAT6) expression, respectively. CONCLUSIONS Chelidonine has profound inhibitory effects on airway inflammation and this effect is caused by suppression of IL-4, eotaxin-2, and OVA-specific IgE production through the STAT6 and Foxp3 pathways. So chelidonine can improve allergic asthma in mice and be a novel anti-asthma therapeutic.
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Noureini SK, Esmaili H. Multiple mechanisms of cell death induced by chelidonine in MCF-7 breast cancer cell line. Chem Biol Interact 2014; 223:141-9. [PMID: 25265580 DOI: 10.1016/j.cbi.2014.09.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 09/09/2014] [Accepted: 09/12/2014] [Indexed: 01/04/2023]
Abstract
In a preliminary study screening anti-proliferative natural alkaloids, a very potent benzophenanthridine, chelidonine showed strong cytotoxicity in cancer cells. While several modes of death have been identified, most of anti-cancer attempts have focused on stimulation of cells to undergo apoptosis. Chelidonine seems to trigger multiple mechanisms in MCF-7 breast cancer cells. It induces both apoptosis and autophagy modes of cell death in a dose dependent manner. Alteration of expression levels of bax/bcl2, and dapk1a by increasing concentration of chelidonine approves switching the death mode from apoptosis induced by very low to autophagy by high concentrations of this compound. On the other hand, submicromolar concentrations of chelidonine strongly suppressed telomerase at both enzyme activity and hTERT transcriptional level. Long exposure of the cells to 50 nanomolar concentration of chelidonine considerably accelerated senescence. Altogether, chelidonine may provide a promising chemistry from nature to treat cancer.
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Affiliation(s)
- Sakineh Kazemi Noureini
- Dept. Biology, Faculty of Basic Sciences, Hakim Sabzevari University, P.O. Box: 397, Sabzevar, Iran.
| | - Hosein Esmaili
- Dept. Biology, Faculty of Basic Sciences, Hakim Sabzevari University, P.O. Box: 397, Sabzevar, Iran
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Paul A, Das J, Das S, Samadder A, Khuda-Bukhsh AR. Poly (lactide-co-glycolide) nano-encapsulation of chelidonine, an active bioingredient of greater celandine (Chelidonium majus), enhances its ameliorative potential against cadmium induced oxidative stress and hepatic injury in mice. Environ Toxicol Pharmacol 2013; 36:937-947. [PMID: 24035924 DOI: 10.1016/j.etap.2013.08.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 07/12/2013] [Accepted: 08/16/2013] [Indexed: 06/02/2023]
Abstract
This study evaluates the possible protective potentials of chelidonine and its poly lactide-co-glycolide (PLGA) encapsulated nano-form against cadmium chloride (CdCl₂) induced oxidative stress and hepatotoxicity in mice, ex vivo and in vivo. Acute exposure to CdCl₂ (1.0 mg/kg b.w; i.p., twice a week for 30 days) generated oxidative stress in mice through accumulation of reactive oxygen species and increased lipid peroxidation, and levels of certain liver marker enzymes (ALT, AST, ALP) with decrease in levels of GSH and certain other antioxidant enzymes (SOD, CAT, GR) in liver. Treatment with nano-chelidonine for 30 days after CdCl₂ intoxication significantly reduced oxidative stress and lipid peroxidation and restored levels of GSH, cholesterol, triglyceride and antioxidant enzymes, showing ameliorative changes in histopathology of liver. Expression pattern of certain inflammatory and apoptotic signal proteins also indicated better hepato-protective abilities of nano-chelidonine, making it a more suitable protective drug than chelidonine against cadmium toxicity in mice.
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Affiliation(s)
- Avijit Paul
- Cytogenetics and Molecular Biology Laboratory, Department of Zoology, University of Kalyani, Kalyani 741235, India
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Abstract
AIM: To investigate the potential effects of chelidonine, the main alkaloid of Chelidonium majus, on telomerase activity and its regulation in HepG2 cells.
METHODS: Cytotoxicity of chelidonine for HepG2 cells was determined by neutral red assay. A modified polymerase chain reaction (PCR)-based telomerase repeat amplification protocol was used to estimate relative telomerase activity in chelidonine-treated cells in comparison with the untreated control cells. Relative expression level of the catalytic subunit of telomerase (hTERT) gene and P-glycoprotein (pgp) were estimated using semi-quantitative real-time reverse transcription-PCR (RT-PCR). Cell senescence in treated cells was demonstrated using a β-galactosidase test.
RESULTS: Cytotoxicity of chelidonine in HepG2 cells was not dose-dependent and tended to reach plateau immediately after the living cells were reduced in number to slightly higher than 50%. However, 12 &mgr;mol/L concentration of chelidonine was considered as LD50, where the maximal attainable effects were realized. Real-time RT-PCR data showed that the expression of pgp increased three-fold in chelidonine treated HepG2 cells in comparison with the untreated controls. Morphologically, treated HepG2 cells showed apoptotic features after 24 h and a small fraction of cells appeared with single blister cell death. The relative expression level of Bcl-2 dropped to less than 50% of control cells at a sub-apoptotic concentration of chelidonine and subsequently increased to higher than 120% at LD50. Telomerase activity was reduced considerably after administration of very low doses of chelidonine, whereas higher concentrations of chelidonine did not remarkably enhance the effect. Real-time RT-PCR experiments indicated a drastic decrease in expression level of hTERT subunit of telomerase under treatment with chelidonine. Repeated treatment of cells with very low doses of chelidonine caused a decline in growth rate by 4 wk and many of the cells appeared to be aged with large volume and dark staining in the β-galactosidase assay.
CONCLUSION: Chelidonine reduces telomerase activity through down-regulation of hTERT expression. Senescence induction might not be directly caused by reducing telomerase activity as it occurs after a few population doublings.
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