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Li W, Lin M, Li J, Liu D, Tan W, Yin X, Zhai Y, Zhou Y, Xing W. Genome-wide association study of drought tolerance traits in sugar beet germplasms at the seedling stage. Front Genet 2023; 14:1198600. [PMID: 37547461 PMCID: PMC10401439 DOI: 10.3389/fgene.2023.1198600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 06/30/2023] [Indexed: 08/08/2023] Open
Abstract
Introduction: Sugar beets are an important crop for global sugar production. Intense drought and the increasing lack of water resources pose a great threat to sugar beet cultivation. It is a priority to investigate favourable germplasms and functional genes to improve the breeding of drought tolerant plants. Methods: Thus, in this study, 328 sugar beet germplasms were used in a genome-wide association study (GWAS) to identify single nucleotide polymorphism (SNP) markers and candidate genes associated with drought tolerance. Results: The results showed that under drought stress (9% PEG-6000), there were 11 significantly associated loci on chromosomes 2, 3, 5, 7, and 9 from the 108946 SNPs filtered using a mixed linear model (MLM). Genome-wide association analysis combined with qRT-PCR identified 13 genes that were significantly differentially expressed in drought-tolerant extreme materials. Discussion: These candidate genes mainly exhibited functions such as regulating sugar metabolism, maintaining internal environmental stability and participating in photosystem repair. This study provides valuable information for exploring the molecular mechanisms of drought tolerance and improvement in sugar beet.
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Affiliation(s)
- Wangsheng Li
- National Beet Medium-Term Gene Bank, Heilongjiang University, Harbin, China
- Key Laboratory of Sugar Beet Genetics and Breeding, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin, China
| | - Ming Lin
- Xinjiang Academy of Agricultural Sciences, Urumqi, China
| | - Jiajia Li
- National Beet Medium-Term Gene Bank, Heilongjiang University, Harbin, China
- Key Laboratory of Sugar Beet Genetics and Breeding, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin, China
| | - Dali Liu
- National Beet Medium-Term Gene Bank, Heilongjiang University, Harbin, China
- Key Laboratory of Sugar Beet Genetics and Breeding, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin, China
| | - Wenbo Tan
- National Beet Medium-Term Gene Bank, Heilongjiang University, Harbin, China
- Key Laboratory of Sugar Beet Genetics and Breeding, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin, China
| | - Xilong Yin
- National Beet Medium-Term Gene Bank, Heilongjiang University, Harbin, China
- Key Laboratory of Sugar Beet Genetics and Breeding, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin, China
| | - Yan Zhai
- National Beet Medium-Term Gene Bank, Heilongjiang University, Harbin, China
- Key Laboratory of Sugar Beet Genetics and Breeding, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin, China
| | - Yuanhang Zhou
- Xinjiang Academy of Agricultural Sciences, Urumqi, China
| | - Wang Xing
- National Beet Medium-Term Gene Bank, Heilongjiang University, Harbin, China
- Key Laboratory of Sugar Beet Genetics and Breeding, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin, China
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Yadav RP, Sadhukhan S, Saha ML, Ghosh S, Das M. Exploring the mechanism of andrographolide in the treatment of gastric cancer through network pharmacology and molecular docking. Sci Rep 2022; 12:18413. [PMID: 36319798 PMCID: PMC9626486 DOI: 10.1038/s41598-022-18319-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 08/09/2022] [Indexed: 01/01/2023] Open
Abstract
Gastric cancer has emerged as a key challenge in oncology research as a malignant tumour with advanced stage detection. Apart from surgical management, a pharmacotherapeutic approach to stomach cancer treatment is an appealing option to consider. Andrographolide has been shown to have anticancer and chemosensitizer properties in a variety of solid tumors, including stomach cancer but the exact molecular mechanism is skeptical. In this study, we identified and validated pharmacological mechanism involved in the treatment of GC with integrated approach of network pharmacology and molecular docking. The targets of andrographolide and GC were obtained from databases. The intersected targets between andrographolide and GC-related genes were used to construct protein-protein interaction (PPI) network. Furthermore, mechanism of action of the targets was predicted by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses. Finally, these results were validated by molecular docking experiments, mRNA and protein expression level. A total of 197 targets were obtained for andrographolide treating GC. Functional enrichment analysis revealed that the target genes were exerted promising therapeutic effects on GC by HIF-1 and PI3K-Akt signaling pathway. The possible mechanism of action is by inactivation of HIF-1 signaling pathway which is dependent on the inhibition of upstream PI3K-AKT pathway. The PPI network identified SRC, AKT1, TP53, STAT3, PIK3CA, MAPK1, MAPK3, VEGFA, JUN and HSP90AA1 as potential hub targets. In addition, these results were further validated with molecular docking experiments. Survival analysis indicated that the expression levels of the hub genes were significantly associated with the clinical prognosis of GC. This study provided a novel approach to reveal the therapeutic mechanisms of andrographolide on GC, making future clinical application of andrographolide in the treatment of GC.
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Affiliation(s)
- Ravi Prakash Yadav
- grid.59056.3f0000 0001 0664 9773Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700 019 India
| | - Susanta Sadhukhan
- grid.59056.3f0000 0001 0664 9773Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700 019 India
| | - Makhan Lal Saha
- grid.414764.40000 0004 0507 4308Department of General Surgery, Institute of Post Graduate Medical Education & Research, Kolkata, 700020 India
| | - Sudakshina Ghosh
- grid.59056.3f0000 0001 0664 9773Department of Zoology, Vidyasagar College for Women, 39 Sankar Ghosh Lane, Kolkata, 700006 India
| | - Madhusudan Das
- grid.59056.3f0000 0001 0664 9773Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700 019 India
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Malat P, Ekalaksananan T, Heawchaiyaphum C, Suebsasana S, Roytrakul S, Yingchutrakul Y, Pientong C. Andrographolide Inhibits Epstein–Barr Virus Lytic Reactivation in EBV-Positive Cancer Cell Lines through the Modulation of Epigenetic-Related Proteins. Molecules 2022; 27:molecules27144666. [PMID: 35889536 PMCID: PMC9316603 DOI: 10.3390/molecules27144666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 07/14/2022] [Accepted: 07/18/2022] [Indexed: 01/27/2023] Open
Abstract
Reactivation of Epstein–Barr virus (EBV) is associated with EBV-associated malignancies and is considered to be a benefit target for treatment. Andrographolide is claimed to have antiviral and anti-tumor activities. Therefore, this study aimed to investigate the effect of andrographolide on the inhibition of EBV lytic reactivation in EBV-positive cancer cells. The cytotoxicity of andrographolide was firstly evaluated in EBV-positive cancer cells; P3HR1, AGS-EBV and HONE1-EBV cells, using an MTT assay. Herein, the spontaneous expression of EBV lytic genes; BALF5, BRLF1 and BZLF1, was significantly inhibited in andrographolide-treated cells. Accordingly, andrographolide inhibited the expression of Zta and viral production in sodium butyrate (NaB)-induced EBV lytic reactivation. Additionally, proteomics and bioinformatics analysis revealed the differentially expressed proteins that inhibit EBV lytic reactivation in all treated cell lines were functionally related with the histone modifications and chromatin organization, such as histone H3-K9 modification and histone H3-K27 methylation. Taken together, andrographolide inhibits EBV reactivation in EBV-positive cancer cells by inhibiting EBV lytic genes, probably, through the histone modifications.
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Affiliation(s)
- Praphatson Malat
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (P.M.); (T.E.)
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Tipaya Ekalaksananan
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (P.M.); (T.E.)
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Chukkris Heawchaiyaphum
- Department of Biotechnology, Faculty of Science and Technology, Rangsit Center, Thammasart University, Pathum Thani 12120, Thailand;
| | - Supawadee Suebsasana
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Thammasat University, Bangkok 10200, Thailand;
| | - Sittiruk Roytrakul
- Proteomics Research Laboratory, Genome Technology Research Unit, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani 12120, Thailand; (S.R.); (Y.Y.)
| | - Yodying Yingchutrakul
- Proteomics Research Laboratory, Genome Technology Research Unit, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani 12120, Thailand; (S.R.); (Y.Y.)
| | - Chamsai Pientong
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (P.M.); (T.E.)
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen 40002, Thailand
- Correspondence:
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Resveratrol Induces Autophagy and Apoptosis in Non-Small-Cell Lung Cancer Cells by Activating the NGFR-AMPK-mTOR Pathway. Nutrients 2022; 14:nu14122413. [PMID: 35745143 PMCID: PMC9228598 DOI: 10.3390/nu14122413] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/05/2022] [Accepted: 06/07/2022] [Indexed: 02/04/2023] Open
Abstract
Resveratrol (RSV) has been reported to induce autophagy and apoptosis in non-small-cell lung cancer A549 cells, and the nerve growth factor receptor (NGFR) regulates autophagy and apoptosis in many other cells. However, the effect of NGFR on autophagy and apoptosis induced by RSV in A549 cells remains unclear. Here, we found that RSV reduced the cell survival rate in time- and concentration-dependent manners, activating autophagy and apoptosis. Lethal autophagy was triggered by RSV higher than 55 μM. The relationship between autophagy and apoptosis depended on the type of autophagy. Specifically, mutual promotion was observed between apoptosis and lethal autophagy. Conversely, cytoprotective autophagy facilitated apoptosis but was unaffected by apoptosis. RSV enhanced NGFR by increasing mRNA expression and prolonging the lifespan of NGFR mRNA and proteins. RSV antagonized the enhanced autophagy and apoptosis caused by NGFR knockdown. As the downstream pathway of NGFR, AMPK-mTOR played a positive role in RSV-induced autophagy and apoptosis. Overall, RSV-induced autophagy and apoptosis in A549 cells are regulated by the NGFR-AMPK-mTOR signaling pathway.
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siRNA Targeting Mcl-1 Potentiates the Anticancer Activity of Andrographolide Nanosuspensions via Apoptosis in Breast Cancer Cells. Pharmaceutics 2022; 14:pharmaceutics14061196. [PMID: 35745769 PMCID: PMC9230779 DOI: 10.3390/pharmaceutics14061196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/30/2022] [Accepted: 06/01/2022] [Indexed: 12/01/2022] Open
Abstract
Breast cancer is the second leading cause of cancer-related death in the US. However, recurrence is frequently found despite adjuvant therapy being available. Combination therapy with cytotoxic drugs and gene therapy is being developed to be a new promising cancer treatment strategy. Introducing substituted dithiocarbamate moieties at the C12 position of andrographolide (3nAG) could improve its anticancer selectivity in the MCF-7 breast cancer cell line. However, its hydrophobicity is one of its main drawbacks. This work successfully prepared 3nAG nanosuspension stabilized with the chitosan derivative NSC (3nAGN-NSC) to increase solubility and pharmacological effectiveness. siRNAs have emerged as a promising therapeutic alternative for interfering with particular mRNA. The 3nAGN-NSC had also induced Mcl-1 mRNA expression in MCF-7 human breast cancer cells at 8, 12, and 24 h. This indicates that, in addition to Mcl-1 silencing by siRNA (siMcl-1) in MCF-7 with substantial Mcl-1 reliance, rationally devised combination treatment may cause the death of cancer cells in breast cancer. The Fa-CI analysis showed that the combination of 3nAGN-NSC and siMcl-1 had a synergistic effect with a combination index (CI) value of 0.75 (CI < 1 indicating synergistic effects) at the fractional inhibition of Fa 0.7. The synergistic effect was validated by flow cytometry, with the induction of apoptosis as the mechanism of reduced cell viability. Our findings suggested the rational use of 3nAGN-NSC in combination with siMcl-1 to kill breast cancer cells.
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Zhang H, Huang J, Yang J, Cai J, Liu Q, Zhang X, Bao J, Zhang Z. Cadmium induces apoptosis and autophagy in swine small intestine by downregulating the PI3K/Akt pathway. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:41207-41218. [PMID: 35091949 DOI: 10.1007/s11356-022-18863-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 01/21/2022] [Indexed: 06/14/2023]
Abstract
Cadmium (Cd) is an environmental contaminant, which is potentially toxic. It is well known that Cd can accumulate in the liver and kidney and cause serious damage. However, few studies have investigated the mechanism of intestinal damage induced by Cd in swine. Here, we established Cd poisoning models in vivo and in vitro to explore the mechanism of intestinal injury induced by Cd in swine. The morphology of intestinal tissue cells was observed by TUNEL staining and electron microscopy, and the morphology of IPEC-J2 cells was observed by flow cytometry, Hoechst staining, and MDC staining. Cell morphological observations revealed that Cd treatment induced ileal apoptosis and autophagy. The effects of Cd on the PI3K/Akt pathway, as well as on apoptosis and autophagy-related protein expression in intestinal cells, were analyzed by western blot (WB) and the expression of mRNA was detected by quantitative real-time polymerase chain reaction (qRT-PCR). The results showed that Cd induced autophagy by increasing the levels of autophagy markers Beclin1, Autophagy-associated gene 5 (ATG5), Autophagy-associated gene 16 (ATG16), and Microtubule-associated protein light chains 3-2 (LC3-II), and by reducing the expression levels of Mechanistic target of rapamycin kinase (mTOR) and Microtubule-associated protein light chains 3-1 (LC3-I). Cell apoptosis was induced by increasing the expression of apoptosis markers Bcl-2 associated X protein (Bax), Cysteinyl aspartate specific proteinase 9 (Caspase9), cleaved Caspase9, Cysteinyl aspartate specific proteinase 3 (Caspase3), and cleaved Caspase3, and by reducing the expression of B cell lymphoma/leukemia 2 (Bcl-2). At the same time, Cd decreased the expression of phosphatidylinositol 3-kinase (PI3K), protein kinase B (Akt), and their phosphorylation. We treated IPEC-J2 cells with the PI3K activator 740Y-P and analyzed the morphological changes as well as autophagy and apoptosis-related gene expression. The results showed that 740Y-P could reduce apoptosis and autophagy induced by Cd. In conclusion, our findings suggest that Cd induces intestinal apoptosis and autophagy in swine by inactivating the PI3K/Akt signaling pathway.
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Affiliation(s)
- Haoran Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Jiaqiang Huang
- Department of Nutrition and Health, College of Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, 100083, People's Republic of China
| | - Jie Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Jingzeng Cai
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Qi Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Xintong Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Jun Bao
- College of Animal Science, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Ziwei Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Harbin, 150030, People's Republic of China.
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Tamang N, Andrews C, Mavileti SK, Nanduri S, Golakoti NR, Karanam B. Anti-cancer activity of heteroaromatic acetals of andrographolide and its isomers. NEW J CHEM 2022; 46:9745-9754. [PMID: 36093125 PMCID: PMC9454336 DOI: 10.1039/d2nj01055k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Acetals (2a-d, 3a-d, and 6a-d) of andrographolide (1), 14-deoxy-12-hydroxyandrographolide (4), and isoandrographolide (5) were synthesized using benzaldehyde and heteroaromatic aldehydes. All the synthesized derivatives were characterized using 1H-NMR, 13C-NMR, mass spectrometry, UV, and IR. The compound 6d was characterized via a single-crystal X-ray diffraction study. All the compounds were tested against 60 cell lines of NCI. The acetals (2a-d) of andrographolide (1) exhibited better activity than the acetals (3a-d, and 6a-d) of 12-hydroxyandrographolide (4) and isoandrographolide (5). Preliminary studies suggested that acetals synthesized using benzaldehyde improved anticancer activity. Compound 2a showed the highest growth inhibition of 90.97% against the leukaemia cancer cell line CCRF-CEM. Andrographolide and seven selected compounds were tested against the MDA-MB-231 breast cancer cell line. Compound 3b showed the best activity with an IC50 value of 3 μM among all the tested compounds. Furthermore, this compound 3b was subjected to cell cycle analysis and protein expression confirming apoptosis through the disruption of the mitochondrial potential membrane (Δψ m).
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Affiliation(s)
- Nitesh Tamang
- Department of chemistry, Sri Sathya Sai Institute of Higher Learning, Puttaparthi, Andhra Pradesh, India
| | - Christopher Andrews
- Department of Biology and Cancer Research, Tuskegee University, Tuskegee, AL 36088, USA
| | - Sai Kiran Mavileti
- Department of chemistry, Sri Sathya Sai Institute of Higher Learning, Puttaparthi, Andhra Pradesh, India
| | - Srinivas Nanduri
- Department of Process Chemistry, National Institute of Pharmaceutical Education and Research, Balanagar, 500037, Hyderabad, Telangana, India
| | - Nageswara Rao Golakoti
- Department of chemistry, Sri Sathya Sai Institute of Higher Learning, Puttaparthi, Andhra Pradesh, India
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Wang XR, Jiang ZB, Xu C, Meng WY, Liu P, Zhang YZ, Xie C, Xu JY, Xie YJ, Liang TL, Yan HX, Fan XX, Yao XJ, Wu QB, Leung ELH. Andrographolide suppresses non-small-cell lung cancer progression through induction of autophagy and antitumor immune response. Pharmacol Res 2022; 179:106198. [DOI: 10.1016/j.phrs.2022.106198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 03/28/2022] [Accepted: 03/28/2022] [Indexed: 10/18/2022]
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Acetaldehyde Induces Cytotoxicity via Triggering Mitochondrial Dysfunction and Overactive Mitophagy. Mol Neurobiol 2022; 59:3933-3946. [PMID: 35438433 DOI: 10.1007/s12035-022-02828-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 04/02/2022] [Indexed: 10/18/2022]
Abstract
Overconsumption of alcohol damages brain tissue and causes cognitive dysfunction. It has been suggested that the neurotoxicity caused by excessive alcohol consumption is largely mediated by acetaldehyde, the most toxic metabolite of ethanol. Evidence shows that acetaldehyde impairs mitochondrial function and induces cytotoxicity of neuronal cells; however, the exact mechanisms are not fully understood. The aim of this study was to investigate the role of mitophagy in acetaldehyde-induced cytotoxicity. It was found that acetaldehyde treatment induced mitophagic responses and caused cytotoxicity in SH-SY5Y cells. The levels of light chain 3 (LC3)-II, Beclin1, autophagy-related protein (Atg) 5 and Atg16L1, PTEN-induced putative kinase (PINK)1, and Parkin were significantly elevated, while the level of p62 was reduced in acetaldehyde-treated cells. Acetaldehyde also promoted the accumulation of PINK1 and Parkin on mitochondria and caused a remarkable decrease of mitochondrial mass. Treatment with autophagy inhibitors prevented the decline of mitochondrial mass and alleviated the cytotoxicity induced by acetaldehyde, suggesting that overactive mitophagy might be an important mechanism contributing to acetaldehyde-induced cytotoxicity. Antioxidant N-acetyl-L-cysteine significantly attenuated the mitophagic responses and alleviated the cytotoxicity induced by acetaldehyde, indicating that oxidative stress was a major mediator of the excessive mitophagy induced by acetaldehyde. Taken together, these findings provided new insights into the role of mitophagy and oxidative stress in acetaldehyde-induced cytotoxicity.
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Paul S, Roy D, Pati S, Sa G. The Adroitness of Andrographolide as a Natural Weapon Against Colorectal Cancer. Front Pharmacol 2021; 12:731492. [PMID: 34795581 PMCID: PMC8592893 DOI: 10.3389/fphar.2021.731492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/28/2021] [Indexed: 12/15/2022] Open
Abstract
The conventional carcinoma treatment generally encompasses the employment of radiotherapy, chemotherapy, surgery or use of cytotoxic drugs. However, recent advances in pharmacological research have divulged the importance of traditional treatments in cancer. The aim of the present review is to provide an overview of the importance of one such medicinal herb of Chinese and Indian origin: Andrographis paniculate on colorectal cancer with special emphasis on its principal bioactive component andrographolide (AGP) and its underlying mechanisms of action. AGP has long been known to possess medicinal properties. Studies led by numerous groups of researchers shed light on its molecular mechanism of action. AGP has been shown to act in a multi-faceted manner in context of colorectal cancer by targeting matrix metalloproteinase-9, Toll-like receptor or NFκB signaling pathways. In this review, we highlighted the recent studies that show that AGP can act as an effective immunomodulator by harnessing effective anti-tumor immune response. Recent studies strongly recommend further research on this compound and its analogues, especially under in-vivo condition to assess its actual potential as a prospective and efficient candidate against colorectal cancer. The current review deals with the roles of this phytomedicine in context of colorectal cancer and briefly describes its perspectives to emerge as an essential anti-cancer drug candidate. Finally, we also point out the drawbacks and difficulties in administration of AGP and indicate the use of nano-formulations of this phytomedicine for better therapeutic efficacy.
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Affiliation(s)
- Silpita Paul
- Division of Molecular Medicine, Bose Institute, Kolkata, India
| | - Dia Roy
- Division of Molecular Medicine, Bose Institute, Kolkata, India
| | - Subhadip Pati
- Division of Molecular Medicine, Bose Institute, Kolkata, India
| | - Gaurisankar Sa
- Division of Molecular Medicine, Bose Institute, Kolkata, India
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Zhang H, Li S, Si Y, Xu H. Andrographolide and its derivatives: Current achievements and future perspectives. Eur J Med Chem 2021; 224:113710. [PMID: 34315039 DOI: 10.1016/j.ejmech.2021.113710] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 07/16/2021] [Accepted: 07/16/2021] [Indexed: 12/22/2022]
Abstract
Natural product andrographolide isolated from the plant Andrographis paniculata shows a plethora of biological activities, including anti-tumor, anti-bacterial, anti-inflammation, anti-virus, anti-fibrosis, anti-obesity, immunomodulatory and hypoglycemic activities. Based on extensive chemical structural modifications, a series of andrographolide derivatives with improved bioavailability and druggability has been developed. Moreover, greater understanding of their mechanisms of action at the molecular and cellular level has been thoroughly investigated. In this review, we give an outlook for the therapeutical potential of andrographolide and its derivatives in diverse diseases and highlighted the drug design, pharmacokinetic and mechanistic studies for the past ten years, together with a brief overview of the pharmacological effects. Notably, we focused to provide a critical enlightenment of the area of andrographolide and its derivatives with the intent of indicating the future perspectives, challenges and limitations. We believe that this review paper will benefit drug discovery where andrographolide was used as a template, shed light on the identification of drug targets for andrographolide and its analogs, as well as increase our knowledge for using them for therapeutic application, including the treatment for various forms of cancers.
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Affiliation(s)
- Hang Zhang
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Co-innovation Center of Henan Province for New Drug R&D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Shufeng Li
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Co-innovation Center of Henan Province for New Drug R&D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Yongsheng Si
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Co-innovation Center of Henan Province for New Drug R&D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Haiwei Xu
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Co-innovation Center of Henan Province for New Drug R&D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, China.
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Ma R, Shimura T, Yin C, Okugawa Y, Kitajima T, Koike Y, Okita Y, Ohi M, Uchida K, Goel A, Yao L, Zhang X, Toiyama Y. Antitumor effects of Andrographis via ferroptosis-associated genes in gastric cancer. Oncol Lett 2021; 22:523. [PMID: 34025790 DOI: 10.3892/ol.2021.12784] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 03/31/2021] [Indexed: 12/24/2022] Open
Abstract
The overall prognosis of advanced/metastatic gastric cancer (GC) remains poor despite the development of pharmacotherapy. Therefore, other treatment options, such as complementary and alternative medicine, should be considered to overcome this aggressive malignancy. Andrographis, which is a generally unharmful botanical compound, has gained increasing interest for its anticancer effects in multiple malignancies via the regulation of cancer progression-associated signaling pathways. In the present study, a series of in vitro experiments (cell proliferation, colony formation and apoptosis assays) was designed to elucidate the antitumor potential and mechanism of Andrographis in GC cells. The present study demonstrated that Andrographis exerted antitumor effects in GC cell lines (MKN74 and NUGC4) by inhibiting proliferation, reducing colony formation and enhancing apoptotic activity. Furthermore, it was demonstrated that the expression levels of the ferroptosis-associated genes heme oxygenase-1, glutamate-cysteine ligase catalytic and glutamate-cysteine ligase modifier were significantly upregulated after Andrographis treatment in both GC cell lines in reverse transcription-quantitative PCR experiments (P<0.05); this finding was further confirmed by immunoblotting assays (P<0.05). In conclusion, to the best of our knowledge, the present study was the first to demonstrate that Andrographis possessed antitumor properties by altering the expression levels of ferroptosis-associated genes, thereby providing novel insights into the potential of Andrographis as an adjunctive treatment option for patients with metastatic GC.
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Affiliation(s)
- Ruiya Ma
- Department of Gastrointestinal and Pediatric Surgery, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan.,Department of Colorectal Surgery, Tangshan Gongren Hospital, Tangshan, Hebei 063000, P.R. China
| | - Tadanobu Shimura
- Department of Gastrointestinal and Pediatric Surgery, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Chengzeng Yin
- Department of Gastrointestinal and Pediatric Surgery, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Yoshinaga Okugawa
- Department of Genomic Medicine, Mie University Hospital, Tsu, Mie 514-8507, Japan
| | - Takahito Kitajima
- Department of Gastrointestinal and Pediatric Surgery, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Yuhki Koike
- Department of Gastrointestinal and Pediatric Surgery, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Yoshiki Okita
- Department of Gastrointestinal and Pediatric Surgery, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Masaki Ohi
- Department of Gastrointestinal and Pediatric Surgery, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Keiichi Uchida
- Department of Gastrointestinal and Pediatric Surgery, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Ajay Goel
- Department of Molecular Diagnostics and Experimental Therapeutics, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA 91016, USA
| | - Li Yao
- Department of Surgery, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Xueming Zhang
- Department of Colorectal Surgery, Tangshan Gongren Hospital, Tangshan, Hebei 063000, P.R. China
| | - Yuji Toiyama
- Department of Gastrointestinal and Pediatric Surgery, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
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13
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Jiang J, Jin J, Lou J, Li J, Wu H, Cheng S, Dong C, Chen H, Gao W. Positive Effect of Andrographolide Induced Autophagy on Random-Pattern Skin Flaps Survival. Front Pharmacol 2021; 12:653035. [PMID: 33796027 PMCID: PMC8008123 DOI: 10.3389/fphar.2021.653035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 02/03/2021] [Indexed: 01/18/2023] Open
Abstract
Random-pattern skin flap replantation is generally used in the reconstruction of surgical tissues and covering a series of skin flap defects. However, ischemia often occurs at the flap distal parts, which lead to flap necrosis. Previous studies have shown that andrographolide (Andro) protects against ischemic cardiovascular diseases, but little is known about the effect of Andro on flap viability. Thus, our study aimed to building a model of random-pattern skin flap to understand the mechanism of Andro-induced effects on flap survival. In this study, fifty-four mice were randomly categorized into the control, Andro group, and the Andro+3-methyladenine group. The skin flap samples were obtained on postoperative day 7. Subsequently, the tissue samples were underwent a series of evaluations such as changes in the appearance of flap tissue, the intensity of blood flow, and neovascularization density of skin flap. In our study, the results revealed that Andro enhanced the viability of random skin flaps by enhancing angiogenesis, inhibiting apoptosis, and reducing oxidative stress. Furthermore, our results have also demonstrated that the administration of Andro caused an elevation in the autophagy, and these remarkable impact of Andro were reversed by 3-methyladenine (3-MA), the most common autophagy inhibitor. Together, our data proves novel evidence that Andro is a potent modulator of autophagy capable of significantly increasing random-pattern skin flap survival.
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Affiliation(s)
- Jingtao Jiang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Jie Jin
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Junsheng Lou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Jiafeng Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Hongqiang Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Sheng Cheng
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Chengji Dong
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Hongyu Chen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Weiyang Gao
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
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14
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Understanding Oxidation Propensity in GCSF and Assessment of its Safety and Efficacy. Pharm Res 2020; 37:207. [PMID: 32996003 DOI: 10.1007/s11095-020-02928-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/11/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE To understand the impact of methionine oxidation in GCSF on efficacy (neutrophil production/activation) and safety (biochemical and histopathological changes). METHODS Nine GCSF biosimilars were analyzed for the levels of residual iron and copper content. Oxidation in GCSF was induced by H2O2 treatment and four samples were prepared: wtGCSF (no oxidation), MetO (1138), MetO (1,138,127) and MetO (1138,127,122). These samples were used to evaluate binding affinity with the GCSF receptor (GCSFR) using biolayer interferometry, thermal stability using circular dichroism and in vitro potency using a relevant cell-based assay. In vivo pharmacodynamics examined changes in neutrophil production upon GCSF methionine oxidation, with the outcome correlated with the differential expression of genes implicated in the GCSF mediated neutrophil activation/ maturation. Pre-clinical safety studies including biochemical and histopathological changes were also performed. RESULTS Met 122 and Met 127 have the most deleterious effect on the potency. Lower binding affinity with GCSFR was identified as the underlying cause for lower efficacy and potency. Role of Asp 110 in GCSF as the critical residue having adverse impact on efficacy in context of methionine oxidation has been elucidated. Impairment of in vitro binding affinity with GCSF manifests as in vivo pharmacodynamic differences via differential expression of downstream genes required for neutrophil maturation. CONCLUSION The data from the present study suggests that methionine oxidation in GCSF is a critical quality attribute that needs careful monitoring and control during commercial manufacturing and subsequent supply chain stages.
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15
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The Prowess of Andrographolide as a Natural Weapon in the War against Cancer. Cancers (Basel) 2020; 12:cancers12082159. [PMID: 32759728 PMCID: PMC7465495 DOI: 10.3390/cancers12082159] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 07/25/2020] [Indexed: 02/06/2023] Open
Abstract
There has been a paradigm shift in our understanding about the multifaceted nature of cancer, and a wealth of information has revealed that single-target drugs are not good enough to provide satisfactory clinical outcomes and therapeutic effects for complex diseases which involve multiple factors. Therefore, there has been a reignition to search for natural products having premium pharmacological activities aim to efficiently target multiple deregulated cellular signaling pathways. Andrographolide, a diterpene lactone from Andrographis paniculata was brought into to the limelight because of its ability to inhibit cancer cell proliferation and induce apoptosis. Here we reviewed andrographolide on cellular pathways regulation including Wnt/β-catenin, mTOR, VEGF-mediated intracellular signaling, as well as TRAIL-mediated apoptosis to inhibit cancer development.
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16
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Annageldiyev C, Tan SF, Thakur S, Dhanyamraju PK, Ramisetti SR, Bhadauria P, Schick J, Zeng Z, Sharma V, Dunton W, Dovat S, Desai D, Zheng H, Feith DJ, Loughran TP, Amin S, Sharma AK, Claxton D, Sharma A. The PI3K/AKT Pathway Inhibitor ISC-4 Induces Apoptosis and Inhibits Growth of Leukemia in Preclinical Models of Acute Myeloid Leukemia. Front Oncol 2020; 10:393. [PMID: 32296637 PMCID: PMC7140985 DOI: 10.3389/fonc.2020.00393] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 03/05/2020] [Indexed: 12/12/2022] Open
Abstract
Acute myeloid leukemia is a heterogeneous disease with a 5-year survival rate of 28.3%, and current treatment options constrained by dose-limiting toxicities. One of the key signaling pathways known to be frequently activated and dysregulated in AML is PI3K/AKT. Its dysregulation is associated with aggressive cell growth and drug resistance. We investigated the activity of Phenybutyl isoselenocyanate (ISC-4) in primary cells obtained from newly diagnosed AML patients, diverse AML cell lines, and normal cord blood cells. ISC-4 significantly inhibited survival and clonogenicity of primary human AML cells without affecting normal cells. We demonstrated that ISC-4-mediated p-Akt inhibition caused apoptosis in primary AML (CD34+) stem cells and enhanced efficacy of cytarabine. ISC-4 impeded leukemia progression with improved overall survival in a syngeneic C1498 mouse model with no obvious toxic effects on normal myelopoiesis. In U937 xenograft model, bone marrow cells exhibited significant reduction in human CD45+ cells in ISC-4 (~87%) or AraC (~89%) monotherapy groups compared to control. Notably, combination treatment suppressed the leukemic infiltration significantly higher than the single-drug treatments (~94%). Together, the present findings suggest that ISC-4 might be a promising agent for AML treatment.
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Affiliation(s)
- Charyguly Annageldiyev
- Division of Hematology and Oncology, Department of Medicine, Pennsylvania State University College of Medicine, Hershey, PA, United States.,Penn State Cancer Institute, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Su-Fern Tan
- Division of Hematology and Oncology, Department of Medicine, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Shreya Thakur
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Pavan Kumar Dhanyamraju
- Division of Hematology and Oncology, Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Srinivasa R Ramisetti
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Preeti Bhadauria
- Division of Hematology and Oncology, Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Jacob Schick
- Division of Hematology and Oncology, Department of Medicine, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Zheng Zeng
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Varun Sharma
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Wendy Dunton
- Division of Hematology and Oncology, Department of Medicine, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Sinisa Dovat
- Division of Hematology and Oncology, Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Dhimant Desai
- Penn State Cancer Institute, Pennsylvania State University College of Medicine, Hershey, PA, United States.,Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Hong Zheng
- Division of Hematology and Oncology, Department of Medicine, Pennsylvania State University College of Medicine, Hershey, PA, United States.,Penn State Cancer Institute, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - David J Feith
- Division of Hematology and Oncology, Department of Medicine, University of Virginia School of Medicine, Charlottesville, VA, United States.,Division of Hematology and Oncology, Department of Medicine, University of Virginia Cancer Center, Charlottesville, VA, United States
| | - Thomas P Loughran
- Division of Hematology and Oncology, Department of Medicine, University of Virginia School of Medicine, Charlottesville, VA, United States.,Division of Hematology and Oncology, Department of Medicine, University of Virginia Cancer Center, Charlottesville, VA, United States
| | - Shantu Amin
- Penn State Cancer Institute, Pennsylvania State University College of Medicine, Hershey, PA, United States.,Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Arun K Sharma
- Penn State Cancer Institute, Pennsylvania State University College of Medicine, Hershey, PA, United States.,Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - David Claxton
- Division of Hematology and Oncology, Department of Medicine, Pennsylvania State University College of Medicine, Hershey, PA, United States.,Penn State Cancer Institute, Pennsylvania State University College of Medicine, Hershey, PA, United States
| | - Arati Sharma
- Division of Hematology and Oncology, Department of Medicine, Pennsylvania State University College of Medicine, Hershey, PA, United States.,Penn State Cancer Institute, Pennsylvania State University College of Medicine, Hershey, PA, United States.,Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA, United States
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17
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Kim OH, Lee JH, Mah S, Park SY, Hong S, Hong SS. HS‑146, a novel phosphoinositide 3‑kinase α inhibitor, induces the apoptosis and inhibits the metastatic ability of human breast cancer cells. Int J Oncol 2020; 56:1509-1520. [PMID: 32236634 DOI: 10.3892/ijo.2020.5018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 02/21/2020] [Indexed: 11/06/2022] Open
Abstract
The phosphoinositide 3‑kinase (PI3K) signaling pathway plays an important role in human cancer as it regulates critical cellular functions, such as survival, proliferation and metabolism. In the present study, a novel PI3Kα inhibitor (HS‑146) was synthesized and its anticancer effects on MCF‑7, MDA‑MB‑231, SKBR3 and BT‑474 human breast cancer cell lines were confirmed. HS‑146 was found to be most effective in inhibiting the proliferation of MCF‑7 cells and in inducing cell cycle arrest in the G0/G1 phase by downregulating cyclin D1, cyclin E, cyclin‑dependent kinase (Cdk)2 and Cdk4, and upregulating p21Waf1/Cip1 protein levels in this cell line. The induction of apoptosis by HS‑146 was confirmed by DAPI staining and western blot analysis. Cell shrinkage and nuclear condensation, which are typical morphological markers of apoptosis, were increased by HS‑146 in the MCF‑7 cells in a concentration‑dependent manner, and HS‑146 also increased the protein expression levels of cleaved poly(ADP‑ribose) polymerase (PARP) and decreased the protein expression levels of Mcl‑1 and caspase‑7. In addition, HS‑146 effectively decreased the phosphorylation levels of downstream PI3K effectors, such as Akt, mammalian target of rapamycin (mTOR), glycogen synthase kinase 3β (GSK3β), p70S6K1 and eukaryotic translation initiation factor 4E‑binding protein 1 (4E‑BP1). Hypoxia‑inducible factor (HIF)‑1α and vascular endothelial growth factor (VEGF) expression were also suppressed by HS‑146 under hypoxic conditions, and HS‑146 inhibited the migration and invasion of MCF‑7 cells in a concentration‑dependent manner. On the whole, the findings of the present study suggest that HS‑146, a novel PI3Kα inhibitor, may be an effective novel therapeutic candidate that suppresses breast cancer proliferation and metastasis by inhibiting the PI3K/Akt/mTOR pathway.
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Affiliation(s)
- Ok Hyeon Kim
- College of Korean Medicine, Dongguk University, Goyang, Gyeonggi 10326, Republic of Korea
| | - Ju-Hee Lee
- College of Korean Medicine, Dongguk University, Goyang, Gyeonggi 10326, Republic of Korea
| | - Shinmee Mah
- Center for Catalytic Hydrocarbon Functionalizations, Institute of Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Sung Yun Park
- College of Korean Medicine, Dongguk University, Goyang, Gyeonggi 10326, Republic of Korea
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon Functionalizations, Institute of Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Soon-Sun Hong
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon 22332, Republic of Korea
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18
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Bu T, Wang C, Jin H, Meng Q, Huo X, Sun H, Sun P, Wu J, Ma X, Liu Z, Liu K. Organic anion transporters and PI3K-AKT-mTOR pathway mediate the synergistic anticancer effect of pemetrexed and rhein. J Cell Physiol 2019; 235:3309-3319. [PMID: 31587272 DOI: 10.1002/jcp.29218] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 09/03/2019] [Indexed: 12/21/2022]
Abstract
The aim of this study was to explore whether rhein could enhance the effects of pemetrexed (PTX) on the therapy of non-small-cell lung cancer (NSCLC) and to clarify the associated molecular mechanism. Our study shows that rhein in combination with PTX could obviously increase the systemic exposure of PTX in rats, which would be mediated by the inhibition of organic anion transporters (OATs). Furthermore, the toxicity of PTX was significantly raised by rhein in A549 cells in a concentration-dependent manner. Concomitant administration of rhein and PTX-induced cell apoptosis compared with PTX alone in flow cytometry assays, which was further validated by the protein expressions of the apoptotic markers B-cell lymphoma-2/Bcl-2-associated x (Bcl-2/Bax) and Cleaved-Caspase3 (Cl-Caspase3). Meanwhile, the results of monodansylcadaverine (MDC) dyeing experiments showed that PTX-induced autophagy could be enhanced by combination therapy with rhein in A549 cells. Western blot analysis indicated that the synergistic effect of rhein on PTX-mediated autophagy may be interrelated to PI3K-AKT-mTOR pathway inhibition and to the enhancement of p-AMPK and light chain 3-II (LC3-II) protein levels. From these findings, it could be surmised that rhein enhanced the antitumor activity of PTX through influencing autophagy and apoptosis by modulating the PI3K-AKT-mTOR pathway and Bcl-2 family of proteins in A549 cells. Our findings demonstrated that the potential application of rhein as a candidate drug in combination with PTX is promising for treatment of the human lung cancer.
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Affiliation(s)
- Tianci Bu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,The First People's Hospital of Zunyi, The Third Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou, China
| | - Changyuan Wang
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning, Dalian Medical University, Dalian, China
| | - Huan Jin
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Qiang Meng
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning, Dalian Medical University, Dalian, China
| | - Xiaokui Huo
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning, Dalian Medical University, Dalian, China
| | - Huijun Sun
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning, Dalian Medical University, Dalian, China
| | - Pengyuan Sun
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Jingjing Wu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Xiaodong Ma
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Zhihao Liu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning, Dalian Medical University, Dalian, China
| | - Kexin Liu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China.,Provincial Key Laboratory for Pharmacokinetics and Transport, Liaoning, Dalian Medical University, Dalian, China
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19
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Zhang Y, Geng Y, He J, Wu D, Zhang T, Xue L, Zhang L, He A. Tanshinone IIA induces apoptosis and autophagy in acute monocytic leukemia via downregulation of PI3K/Akt pathway. Am J Transl Res 2019; 11:2995-3006. [PMID: 31217869 PMCID: PMC6556636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 04/29/2019] [Indexed: 06/09/2023]
Abstract
Acute myeloid leukemia (AML) is characterized by unrestrained proliferation of myeloid cells. In has been shown that tanshinone IIA (Tan IIA), exhibited anti-tumor activities on different types of cancers. However, the underlying mechanisms by which Tan IIA regulates apoptosis and autophagy in AML remain unclear. Thus, this study aimed to investigate the effects of Tan IIA on AML in vitro and in vivo. CCK-8 assay, EdU staining, flow cytometry, MDC staining, immunofluorescence, transwell migration and invasion assay were used to detect cell proliferation, apoptosis, autophagy, migration and invasion, respectively. In addition, western blotting was used to examine the protein levels of Bax, Bcl-2, active caspase-3, Beclin-1, Atg-5, p-mTOR and p-Akt in cells. Moreover, animal studies were performed to evaluate anti-tumor effect of Tan IIA on AML in vivo. The results revealed that Tan IIA significantly suppressed the growth of U937 cells in vitro and in vivo. Meanwhile, Tan IIA induced apoptosis in U937 cells via up-regulating the levels of active caspase-3 and Bax, and down-regulating Bcl-2 in vitro and in vivo. In addition, Tan IIA inhibited the capacity of migration and invasion in U937 cells. Moreover, Tan IIA induced autophagy in U937 cells via upregulation of the expression of LC3 II, Atg5 and Beclin 1, which was further confirmed by MDC staining and immunofluorescence assays. For the first time, we have shown that autophagy inhibitor 3MA significantly enhanced Tan IIA-induced apoptosis in U937 cells. Furthermore, Tan IIA induced apoptosis and autophagy via downregulation of PI3K/Akt pathway in vitro and in vivo. Therefore, the accumulating evidences suggested that Tan IIA could be a potential agent for improving the symptoms of AML in the future.
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Affiliation(s)
- Yanping Zhang
- Department of Laboratory, The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710004, P. R. China
| | - Yan Geng
- Department of Laboratory, The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710004, P. R. China
| | - Juntao He
- Department of Laboratory, The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710004, P. R. China
| | - Dong Wu
- Department of Hematology, The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710004, P. R. China
| | - Tong Zhang
- Department of Laboratory, The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710004, P. R. China
| | - Li Xue
- Department of Laboratory, The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710004, P. R. China
| | - Lei Zhang
- Department of Laboratory, The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710004, P. R. China
| | - Aili He
- Department of Hematology, The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710004, P. R. China
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20
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Liu Y, Fan D. Ginsenoside Rg5 induces apoptosis and autophagy via the inhibition of the PI3K/Akt pathway against breast cancer in a mouse model. Food Funct 2019; 9:5513-5527. [PMID: 30207362 DOI: 10.1039/c8fo01122b] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Breast cancer is the most frequently diagnosed cancer and has become the main cause of cancer-related death among women worldwide. Traditional chemotherapy for breast cancer has serious side effects for patients, such as the first-line drug docetaxel. Ginsenoside Rg5, a rare ginsenoside and the main ingredient extracted from fine black ginseng, has been proved to have anti-breast cancer efficacy in vitro. Here, the in vivo anti-breast cancer efficacy, side effects and potential molecular mechanisms of Rg5 were investigated on a BALB/c nude mouse model of human breast cancer. The tumor growth inhibition rate of high dose Rg5 (20 mg kg-1) was 71.4 ± 9.4%, similar to that of the positive control docetaxel (72.0 ± 9.1%). Compared to docetaxel, Rg5 showed fewer side effects in the treatment of breast cancer. Treatment with Rg5 induced apoptosis and autophagy in breast cancer tissues. Rg5 was proved to induce caspase-dependent apoptosis via the activation of the extrinsic death receptor and intrinsic mitochondrial signaling pathways. The autophagy induction was related to the formation of an autophagosome and accumulation of LC3BII, P62 and critical Atg proteins. Further studies showed that Rg5 in a dose-dependent manner induced apoptosis and autophagy through the inhibition of the PI3K/Akt signaling pathway as indicated by the reduced phosphorylation level of PI3K and Akt. Taken together, Rg5 could be a novel and promising clinical antitumor drug targeting breast cancer.
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Affiliation(s)
- Yannan Liu
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China.
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21
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Tian L, Cheng F, Wang L, Qin W, Zou K, Chen J. CLE-10 from Carpesium abrotanoides L. Suppresses the Growth of Human Breast Cancer Cells (MDA-MB-231) In Vitro by Inducing Apoptosis and Pro-Death Autophagy Via the PI3K/Akt/mTOR Signaling Pathway. Molecules 2019; 24:molecules24061091. [PMID: 30897708 PMCID: PMC6471079 DOI: 10.3390/molecules24061091] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 03/15/2019] [Accepted: 03/16/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The antitumor activity of CLE-10 (4-epi-isoinuviscolide), a sesquiterpene lactone compound, isolated from Carpesium abrotanoides L. has rarely been reported. The aim of this study is to investigate the antitumor activity of CLE-10 and give a greater explanation of its underlying mechanisms. METHODS The cytotoxicity of CLE-10 was evaluated using MTT assay. Autophagy was detected by the formation of mRFP-GFP-LC3 fluorescence puncta and observed using transmission electron microscopy, while flow cytometry was employed to detect apoptosis. The protein expressions were detected through Western blotting. RESULTS CLE-10 induced pro-death autophagy and apoptosis in MDA-MB-231 cells by increasing the protein expression of LC3-II, p-ULK1, Bax, and Bad, as well as downregulating p-PI3K, p-Akt, p-mTOR, p62, LC3-I, Bcl-2, and Bcl-xl. CLE-10 that was pretreated with 3-methyladenine (3-MA) or chloroquine (CQ) weakened the upregulation of the protein expression of p-ULK1, or the downregulation of p62, p-mTOR, and decreased the level of cytotoxicity against MDA-MB-231 cells. Meanwhile, rapamycin enhanced the effect of CLE-10 on the expression of autophagy-related protein and its cytotoxicity, with the IC50 value of CLE-10 decreasing from 4.07 µM to 2.38 µM. CONCLUSION CLE-10 induced pro-death autophagy and apoptosis in MDA-MB-231 cells by upregulating the protein expressions of LC3-II, p-ULK1, Bax, and Bad and downregulating p-PI3K, p-Akt, p-mTOR, p62, Bcl-2, and Bcl-xl.
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Affiliation(s)
- Li Tian
- Hubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang 443002, China.
| | - Fan Cheng
- Hubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang 443002, China.
| | - Lei Wang
- Hubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang 443002, China.
| | - Wen Qin
- Hubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang 443002, China.
| | - Kun Zou
- Hubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang 443002, China.
| | - Jianfeng Chen
- Hubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang 443002, China.
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Ganoderma lucidum Polysaccharides Prevent Palmitic Acid-Evoked Apoptosis and Autophagy in Intestinal Porcine Epithelial Cell Line via Restoration of Mitochondrial Function and Regulation of MAPK and AMPK/Akt/mTOR Signaling Pathway. Int J Mol Sci 2019; 20:ijms20030478. [PMID: 30678035 PMCID: PMC6387170 DOI: 10.3390/ijms20030478] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 01/18/2019] [Accepted: 01/18/2019] [Indexed: 01/01/2023] Open
Abstract
Ganoderma lucidum polysaccharide (GLP) extracted from Ganoderma lucidum (Leyss. ex Fr.) Karst, a traditional Chinese medicine, is a biologically active substance reported to possess anti-oxidative, anti-apoptotic, and neurological protection. However, it is unknown whether GLP have any protective effect against high-fat constituents-induced epithelial cell injury. The aim of this study was to investigate the protection and molecular mechanism of GLP on injury induced by palmitic acid (PA) in the intestinal porcine epithelial cell line (IPEC-J2). First, we tested whether the treatment of GLP attenuate PA-induced IPEC-J2 cell death. GLP markedly blocked PA-caused cytotoxicity and apoptosis in IPEC-J2 cells. Moreover, GLP recovered the decreased mitochondrial function and inhibited activation of caspase-dependent apoptotic pathway. Interestingly, PA promoted cell apoptosis and autophagy through stimulation of phosphorylation of mitogen-activated protein kinases (MAPKs), AMP-activated protein kinase (AMPK), and inhibition of phosphorylation of Akt and mammalian target of rapamycin (mTOR), which was reversed by GLP. Taken together, this study revealed a protective effect of GLP against PA-evoked IPEC-J2 cell death through anti-apoptotic and anti-autophagic properties.
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23
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Wang JN, Che Y, Yuan ZY, Lu ZL, Li Y, Zhang ZR, Li N, Li RD, Wan J, Sun HD, Sun N, Puno PT, He J. Acetyl-macrocalin B suppresses tumor growth in esophageal squamous cell carcinoma and exhibits synergistic anti-cancer effects with the Chk1/2 inhibitor AZD7762. Toxicol Appl Pharmacol 2019; 365:71-83. [PMID: 30633885 DOI: 10.1016/j.taap.2019.01.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 01/04/2019] [Accepted: 01/04/2019] [Indexed: 11/17/2022]
Abstract
Natural products derived from herbal medicines have become a major focus of anti-cancer drug discovery studies. Acetyl-macrocalin B (A-macB) is an ent-diterpenoid isolated from Isodon silvatica. This study aimed to examine the effect and molecular action of A-macB in esophageal squamous cell carcinoma (ESCC) and explore possible drug synergistic modalities. A-macB induced cellular reactive oxygen species (ROS) generation, initiated the p38 mitogen-activated protein kinase (MAPK) signaling pathway, and triggered the caspase-9-dependent apoptosis cascade in ESCC cells. The ROS scavenger N-acetylcysteine (NAC) and the specific p38 inhibitor SB203580 reversed the effects of A-macB on the p38 network and thus rescued ESCC cells from apoptosis. The cellular ROS increase was at least partially due to the suppression of glutathione-S-transferase P1 (GSTP1) by A-macB. A-macB also upregulated the Chk1/Chk2-Cdc25C/Cdc2/Cyclin B1 axis to induce G2/M phase arrest. The cell growth inhibition induced by A-macB was further enhanced by AZD7762, a specific Chk1/Chk2 inhibitor, with a combination index (CI) of <1. Moreover, A-macB efficiently suppressed xenograft growth without inducing significant toxicity, and AZD7762 potentiated the effects of A-macB in the suppression of tumor growth in vivo. Taken together, A-macB is a promising lead compound for ESCC and exerts synergistic anti-cancer effects with AZD7762.
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Affiliation(s)
- Jing-Nan Wang
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Yun Che
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Zu-Yang Yuan
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Zhi-Liang Lu
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Yuan Li
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Zhi-Rong Zhang
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Ning Li
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Ren-Da Li
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Jun Wan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
| | - Han-Dong Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
| | - Nan Sun
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China.
| | - Pema-Tenzin Puno
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China.
| | - Jie He
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China.
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24
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Dong M, Ye T, Bi Y, Wang Q, Kuerban K, Li J, Feng M, Wang K, Chen Y, Ye L. A novel hybrid of 3-benzyl coumarin seco-B-ring derivative and phenylsulfonylfuroxan induces apoptosis and autophagy in non-small-cell lung cancer. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 52:79-88. [PMID: 30599915 DOI: 10.1016/j.phymed.2018.09.216] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/20/2018] [Accepted: 09/25/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Compound 6, as a novel hybrid of 3-benzyl coumarin seco-B-ring derivative and nitric oxide (NO) donor phenylsulfonylfuroxan, has the potential to develop into an anticancer drug because it displays significant antiproliferation activitity for various solid cancer cell lines including non-small-cell lung cancer (NSCLC) cells. PURPOSE We attempt to uncover the capacities of compound 6 to induce apoptosis and autophagy in NSCLC cells, as well as the underlying mechanism involved in this process. METHODS The effect of compound 6 on cell viability was evaluated in A549 cells by MTT assay. Apoptosis was mainly detected by flow cytometry. The induction of autophagy was observed by transmission electron microscopy (TEM), confocal microscopy as well as western-blotting technique. The expression of all related-proteins including PI3K/Akt/mTOR signaling pathway were also examined by western-blotting technique. RESULTS Above all, distinct growth inhibition and caspase-dependent apoptosis were detected in A549 cells administered with compound 6. Then, we confirmed the induction of autophagy triggered by compound 6 in A549 cells. Noticeably, blocking autophagy using a series of inhibitors and ATG5 siRNA had little effect on the cytotoxicity of compound 6, elucidating nonprotective autophagy triggered in NSCLC cells. Further research illustrated that PI3K/Akt/mTOR signaling pathway was involved in compound 6-induced apoptosis, and 3-MA as well as LY294002 had synergistic inhibiting effect on proliferation of A549 cells through the pathway mentioned above. CONCLUSION These findings raise a rationale that this 3-benzyl coumarin seco-B-ring derivative and phenylsulfonylfuroxan hybrid could be a promising candidate for developing as a therapeutic agent toward NSCLC, and the combination therapy through PI3K/Akt/mTOR signaling pathway may result in optimized treatment outcomes.
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Affiliation(s)
- Mengxue Dong
- Minghang Hospital & Department of Microbiological and Biochemical Pharmacy at School of Pharmacy, Fudan University, Shanghai 201199, China
| | - Tao Ye
- Minghang Hospital & Department of Microbiological and Biochemical Pharmacy at School of Pharmacy, Fudan University, Shanghai 201199, China
| | - Yongyan Bi
- Minghang Hospital & Department of Microbiological and Biochemical Pharmacy at School of Pharmacy, Fudan University, Shanghai 201199, China
| | - Qian Wang
- Minghang Hospital & Department of Microbiological and Biochemical Pharmacy at School of Pharmacy, Fudan University, Shanghai 201199, China
| | - Kudelaidi Kuerban
- Minghang Hospital & Department of Microbiological and Biochemical Pharmacy at School of Pharmacy, Fudan University, Shanghai 201199, China
| | - Jiyang Li
- Minghang Hospital & Department of Microbiological and Biochemical Pharmacy at School of Pharmacy, Fudan University, Shanghai 201199, China
| | - Meiqing Feng
- Minghang Hospital & Department of Microbiological and Biochemical Pharmacy at School of Pharmacy, Fudan University, Shanghai 201199, China
| | - Ke Wang
- Department of Medicinal Chemistry at School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Ying Chen
- Department of Medicinal Chemistry at School of Pharmacy, Fudan University, Shanghai 201203, China.
| | - Li Ye
- Minghang Hospital & Department of Microbiological and Biochemical Pharmacy at School of Pharmacy, Fudan University, Shanghai 201199, China.
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Han FY, Song XY, Chen JJ, Yao GD, Song SJ. Timosaponin AIII: A novel potential anti-tumor compound from Anemarrhena asphodeloides. Steroids 2018; 140:125-130. [PMID: 30296545 DOI: 10.1016/j.steroids.2018.09.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 08/30/2018] [Accepted: 09/27/2018] [Indexed: 12/18/2022]
Abstract
Timosaponin AIII, a major steroidal saponin found in Anemarrhena asphodeloides Bge., which has been widely used as anti-pyretic, anti-diabetic, anti-inflammatory, anti-platelet aggregator and anti-depressant agents in traditional Chinese medicine. Recent pharmacological study showed that timosaponin AIII had potent cytotoxicity, which was potential to be developed as an anticancer agent, however the molecular mechanism underlying the anticancer activity has not been fully elucidated. This review aims to give a systematic summary of the study of timosaponin AIII to reveal its anti-tumor activities by investigating invasion and migration, apoptosis, autophagy and reversing multi-drug resistance. Furthermore, we also make an overview of the mechanisms identified till now. These meaningful findings may provide novel insights on exploiting timosaponin AIII as a new anti-tumor agent.
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Affiliation(s)
- Feng-Ying Han
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Xiao-Yu Song
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Jing-Jie Chen
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Guo-Dong Yao
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China.
| | - Shao-Jiang Song
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China.
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26
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Hodroj MH, Jardaly A, Abi Raad S, Zouein A, Rizk S. Andrographolide potentiates the antitumor effect of topotecan in acute myeloid leukemia cells through an intrinsic apoptotic pathway. Cancer Manag Res 2018; 10:1079-1088. [PMID: 29785137 PMCID: PMC5955015 DOI: 10.2147/cmar.s160924] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Topotecan (TP) is an anticancer drug acting as topoisomerase I inhibitor that is used in the treatment of many types of cancers including leukemia, but it has significant side effects. Andrographolide, a compound extracted from Andrographis paniculata, was recently proven to inhibit the growth of cancer cells and can induce apoptosis. The aim of this study is to investigate the possible synergism between TP and andrographolide in acute myeloid cells in vitro. Materials and methods U937 acute myeloid leukemic cells were cultured using Roswell Park Memorial Institute (RPMI) medium and then treated for 24 h with TP and andrographolide prepared through the dilution of dimethyl sulfoxide (DMSO) stocks with RPMI on the day of treatment. Cell proliferation was assessed using cell proliferation assay upon treatment with both compounds separately and in combination. Cell-cycle study and apoptosis detection were performed by staining the cells with propidium iodide (PI) stain and Annexin V/PI stain, respectively, followed by flow cytometry analysis. Western blotting was used to assess the expression of various proteins involved in apoptotic pathways. Results Both TP and andrographolide showed an antiproliferative effect in a dose-dependent manner when applied on U937 cells separately; however, pretreating the cells with andrographolide before applying TP exhibited a synergistic effect with lower inhibitory concentrations (half-maximal inhibitory concentration). Treating the cells with TP alone led to specific cell-cycle arrest at S phase that was more prominent upon pretreatment combination with andrographolide. Using Annexin V/PI staining to assess the proapoptotic effect following the pretreatment combination showed an increase in the number of apoptotic cells, which was supported by the Western blot results that manifested an upregulation of several proapoptotic proteins expression. Conclusion The pretreatment of U937 with andrographolide followed by low doses of TP showed an enhancement in inducing apoptosis when compared to the application of each compound separately.
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Affiliation(s)
| | - Achraf Jardaly
- Department of Natural Sciences, Lebanese American University, Beirut, Lebanon
| | - Sarah Abi Raad
- Department of Natural Sciences, Lebanese American University, Beirut, Lebanon
| | - Annalise Zouein
- Department of Natural Sciences, Lebanese American University, Beirut, Lebanon
| | - Sandra Rizk
- Department of Natural Sciences, Lebanese American University, Beirut, Lebanon
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27
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Wang JN, Zhang ZR, Che Y, Yuan ZY, Lu ZL, Li Y, Li N, Wan J, Sun HD, Sun N, Puno PT, He J. Acetyl-macrocalin B, an ent-kaurane diterpenoid, initiates apoptosis through the ROS-p38-caspase 9-dependent pathway and induces G2/M phase arrest via the Chk1/2-Cdc25C-Cdc2/cyclin B axis in non-small cell lung cancer. Cancer Biol Ther 2018; 19:609-621. [PMID: 29565730 DOI: 10.1080/15384047.2018.1449613] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is the leading cause of cancer-related death worldwide, and novel effective drugs against NSCLC are urgently needed. Isodon species are rich in ent-kaurane diterpenoids that have been reported to have antitumor bioactivity. Acetyl-macrocalin B (A-macB) is a novel ent-kaurane diterpenoid isolated from Isodon silvatica, and its antitumor efficacy against NSCLC and the underlying mechanisms were scrutinized in depth. The viability of cells treated with A-macB was detected by CCK-8 and colony formation assays. Apoptosis and cell cycle distribution were analyzed by flow cytometry. The mechanisms were investigated by detecting ROS and performing western blotting and verification experiments with specific inhibitors. The in vivo effect of A-macB was explored in a nude mouse xenograft model. A-macB effectively inhibited H1299 and A549 cell viability, triggered apoptosis and delayed cells in the G2/M phase. A-macB induced cellular ROS production and then activated the p38 MAPK-mediated, caspase 9-dependent apoptotic pathway. Both the ROS scavenger NAC and the specific p38 inhibitor SB203580 inactivated the function of p38 induced by A-macB, thus preventing cells from apoptosis. A-macB activated the Chk1/2-Cdc25C-Cdc2/cyclin B1 axis to induce G2/M phase arrest. AZD7762 abrogated the function of Chk1/2, abolished the G2/M delay and enhanced the cytotoxicity of A-macB. Moreover, A-macB efficiently suppressed tumor growth in a mouse xenograft model without noticeable toxicity to normal tissues. Having both efficacy and relative safety, A-macB is a potential lead compound that is worthy of further exploration for development as an anticancer agent.
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Affiliation(s)
- Jing-Nan Wang
- a Department of Thoracic Surgery , National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , People's Republic of China
| | - Zhi-Rong Zhang
- a Department of Thoracic Surgery , National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , People's Republic of China
| | - Yun Che
- a Department of Thoracic Surgery , National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , People's Republic of China
| | - Zu-Yang Yuan
- a Department of Thoracic Surgery , National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , People's Republic of China
| | - Zhi-Liang Lu
- a Department of Thoracic Surgery , National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , People's Republic of China
| | - Yuan Li
- a Department of Thoracic Surgery , National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , People's Republic of China
| | - Ning Li
- a Department of Thoracic Surgery , National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , People's Republic of China
| | - Jun Wan
- b State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming , Yunnan , People's Republic of China
| | - Han-Dong Sun
- b State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming , Yunnan , People's Republic of China
| | - Nan Sun
- a Department of Thoracic Surgery , National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , People's Republic of China
| | - Pema-Tenzin Puno
- b State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming , Yunnan , People's Republic of China
| | - Jie He
- a Department of Thoracic Surgery , National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , People's Republic of China
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Hu JL, Hu XL, Guo AY, Wang CJ, Wen YY, Cang SD. Endoplasmic reticulum stress promotes autophagy and apoptosis and reverses chemoresistance in human ovarian cancer cells. Oncotarget 2018; 8:49380-49394. [PMID: 28537902 PMCID: PMC5564776 DOI: 10.18632/oncotarget.17673] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 04/10/2017] [Indexed: 12/31/2022] Open
Abstract
Ovarian cancer presents the highest mortality rate among gynecological tumors. Here, we measured cell viability, proliferation, apoptosis, autophagy, and expression of endoplasmic reticulum stress (ERS)-related proteins, PI3K/AKT/mTOR pathway-related proteins, and apoptosis- and autophagy-related proteins in SKOV3 and SKOV3/CDDP cells treated with combinations of CDDP, tunicamycin, and BEZ235 (blank control, CDDP, CDDP + tunicamycin, CDDP + BEZ235, and CDDP + tunicamycin + BEZ235). Increasing concentrations of tunicamycin and CDDP activated ERS in SKOV3 cells, reduced cell viability and proliferation, increased apoptosis and autophagy, enhanced expression of ERS-related proteins, and inhibited expression of PI3K/AKT/mTOR pathway-related proteins. CDDP, tunicamycin, and BEZ235 acted synergistically to enhance these effects. We also detected lower expression of the ERS-related proteins caspase-3, LC3 II and Beclin 1 in ovarian cancer tissues than adjacent normal tissues. By contrast, expression of Bcl-2 and PI3K/AKT/mTOR pathway-related proteins was higher in ovarian cancer tissues than adjacent normal tissues. Lastly, expression of the ERS-related proteins Beclin 1, caspase-3 and LC3 II was higher in the sensitive group than the resistant group, while expression of Bcl-2, LC3 I, P62 and PI3K/AKT/mTOR pathway-related proteins was decreased. These results show that ERS promotes cell autophagy and apoptosis while reversing chemoresistance in ovarian cancer cells by inhibiting activation of the PI3K/AKT/mTOR signaling pathway.
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Affiliation(s)
- Jin-Long Hu
- Department of Oncology, Henan Provincial People's Hospital, Zhengzhou 450000, P. R. China
| | - Xin-Long Hu
- Department of Medical Imaging Technology, Henan University of Chinese Medicine, Zhengzhou 450000, P. R. China
| | - Ai-Ye Guo
- Laboratory of Clinical Research, Henan Provincial People's Hospital, Zhengzhou 450000, P. R. China
| | - Chao-Jie Wang
- Department of Oncology, Henan Provincial People's Hospital, Zhengzhou 450000, P. R. China
| | - Yi-Yang Wen
- Department of Oncology, Henan Provincial People's Hospital, Zhengzhou 450000, P. R. China
| | - Shun-Dong Cang
- Department of Oncology, Henan Provincial People's Hospital, Zhengzhou 450000, P. R. China
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Li X, Zhu X, Xu C, Wu J. 2-Methyl 2-butanol suppresses human retinoblastoma cells through cell cycle arrest and autophagy. ACTA ACUST UNITED AC 2018; 51:e6889. [PMID: 29561956 PMCID: PMC5875906 DOI: 10.1590/1414-431x20176889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 11/28/2017] [Indexed: 01/01/2023]
Abstract
2-Methyl-2-butanol (MBT) is a chemical compound from the group of alcohols more specifically pentanols, which has shown an excellent anti-cancer activity in our previous study. However, its mechanism of action remains unclear. The present study was designed to investigate the anti-cancer effect of MBT on human retinoblastoma cells. The results showed that the use of MBT leads to HXO-RB44 cell death but is cytotoxic to normal cells at higher concentrations. It showed a dose- as well as a time-dependent inhibition of HXO-RB44 cells. P27 is a cell cycle inhibitory protein, which plays an important role in cell cycle regulation whereas cyclin-B1 is a regulatory protein involved in mitosis. MBT increased the cell cycle arrest in a dose-dependent manner by augmenting p27 and reducing cyclin B1 expression. Moreover, it also accelerated apoptosis, increased light chain-3 (LC-3) conversion in a dose-dependent manner, and helped to debulk cancerous cells. LC3 is a soluble protein, which helps to engulf cytoplasmic components, including cytosolic proteins and organelles during autophagy from autophagosomes. In order to verify the effect of MBT, bafilomycin A1, an autophagy inhibitor, was used to block the MTB-induced apoptosis and necrosis. Additionally, a specific Akt agonist, SC-79, reversed the MBT-induced cell cycle arrest and autophagy. Thus, from the present study, it was concluded that MBT induced cell cycle arrest, apoptosis and autophagy through the PI3K/Akt pathway in HXO-RB44 cells.
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Affiliation(s)
- Xiangyun Li
- Department of Fundus, Wuhan Aier Eye Hospital, Wuhan, Hubei Province, China
| | - Xiangxiang Zhu
- Ophthalmology Center, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Chong Xu
- Department of Fundus, Wuhan Aier Eye Hospital, Wuhan, Hubei Province, China
| | - Jianhua Wu
- Department of Fundus, Wuhan Aier Eye Hospital, Wuhan, Hubei Province, China
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30
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Banerjee A, Banerjee V, Czinn S, Blanchard T. Increased reactive oxygen species levels cause ER stress and cytotoxicity in andrographolide treated colon cancer cells. Oncotarget 2018; 8:26142-26153. [PMID: 28412728 PMCID: PMC5432246 DOI: 10.18632/oncotarget.15393] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 01/30/2017] [Indexed: 01/01/2023] Open
Abstract
Chemotherapy continues to play an essential role in the management of many cancers including colon cancer, the third leading cause of death due to cancer in the United States. Many naturally occurring plant compounds have been demonstrated to possess anti-cancer cell activity and have the potential to supplement existing chemotherapy strategies. The plant metabolite andrographolide induces cell death in cancer cells and apoptosis is dependent upon the induction of endoplasmic reticulum stress (ER stress) leading to the unfolded protein response (UPR). The goal of the present study was to determine the mechanism by which andrographolide induces ER stress and to further evaluate its role in promoting cell death pathways. The T84 and COLO 205 cancer cell lines were used to demonstrate that andrographolide induces increased ROS levels, corresponding anti-oxidant response molecules, and reduced mitochondrial membrane potential. No increases in ROS levels were detected in control colon fibroblast cells. Andrographolide-induced cell death, UPR signaling, and CHOP, Bax, and caspase 3 apoptosis elements were all inhibited in the presence of the ROS scavenger NAC. Additionally, andrographolide-induced suppression of cyclins B1 and D1 were also reversed in the presence of NAC. Finally, Akt phosphorylation and phospho-mTOR levels that are normally suppressed by andrographolide were also expressed at normal levels in the absence of ROS. These data demonstrate that andrographolide induces ER stress leading to apoptosis through the induction of ROS and that elevated ROS also play an important role in down-regulating cell cycle progression and cell survival pathways as well.
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Affiliation(s)
- Aditi Banerjee
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A
| | - Vivekjyoti Banerjee
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A
| | - Steven Czinn
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A
| | - Thomas Blanchard
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A
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31
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Islam MT, Ali ES, Uddin SJ, Islam MA, Shaw S, Khan IN, Saravi SSS, Ahmad S, Rehman S, Gupta VK, Găman MA, Găman AM, Yele S, Das AK, de Castro E Sousa JM, de Moura Dantas SMM, Rolim HML, de Carvalho Melo-Cavalcante AA, Mubarak MS, Yarla NS, Shilpi JA, Mishra SK, Atanasov AG, Kamal MA. Andrographolide, a diterpene lactone from Andrographis paniculata and its therapeutic promises in cancer. Cancer Lett 2018; 420:129-145. [PMID: 29408515 DOI: 10.1016/j.canlet.2018.01.074] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 01/26/2018] [Accepted: 01/29/2018] [Indexed: 12/17/2022]
Abstract
The diterpene lactone andrographolide, isolated from Andrographis paniculata, has been proven to possess several important protective biological activities, including antioxidant, anti-inflammatory, immunomodulatory, antiseptic, antimicrobial, cytotoxic, hypolipidemic, cardioprotective, hepatoprotective, and neuroprotective effects. In addition, it has been reported to play a therapeutic role in the treatment of major human diseases, such as Parkinson's disease, rheumatoid arthritis, and colitis. This systematic review aims to highlight andrographolide as a promising agent in cancer treatment. To this purpose, a number of databases were used to search for the cytotoxic/anticancer effects of andrographolide in pre-clinical and clinical studies. Among 1703 identified literature articles, 139 were included in this review; 109 were investigated as non-clinical, whereas 24, 3, and 3 were pre-clinical, clinical, and non-pre-clinical trials, respectively. Among the model systems, cultured cell lines appeared as the most frequently (79.14%) used, followed by in vivo models using rodents, among others. Furthermore, andrographolide was found to exert cytotoxic/anticancer effects on almost all types of cell lines with the underlying mechanisms involving oxidative stress, cell cycle arrest, anti-inflammatory and immune system mediated effects, apoptosis, necrosis, autophagy, inhibition of cell adhesion, proliferation, migration, invasion, anti-angiogenic activity, and other miscellaneous actions. After careful consideration of the relevant evidence, we suggest that andrographolide can be one of the potential agents in the treatment of cancer in the near future.
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Affiliation(s)
- Muhammad Torequl Islam
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam; Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam; Department of Pharmacy, Ranada Prasad Shaha University, Narayanganj, 1400, Bangladesh
| | - Eunüs S Ali
- Gaco Pharmaceuticals and Research Laboratory, Dhaka, 1000, Bangladesh; College of Medicine and Public Health, Flinders University, Bedford Park, Adelaide, 5042, Australia
| | - Shaikh Jamal Uddin
- Pharmacy Discipline, School of Life Sciences, Khulna University, Khulna, 9208, Bangladesh
| | - Md Amirul Islam
- Pharmacy Discipline, School of Life Sciences, Khulna University, Khulna, 9208, Bangladesh
| | - Subrata Shaw
- Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, MA, 02142, USA
| | - Ishaq N Khan
- Institute of Basic Medical Sciences, Khyber Medical University, Peshawar, 25100, Pakistan
| | - Seyed Soheil Saeedi Saravi
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, USA; Department of Toxicology-Pharmacology, Faculty of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran
| | - Saheem Ahmad
- Department of Bio-Sciences, Integral University, Lucknow, U.P., 226026, India
| | - Shahnawaz Rehman
- Department of Bio-Sciences, Integral University, Lucknow, U.P., 226026, India
| | - Vijai Kumar Gupta
- Department of Chemistry and Biotechnology, Tallinn University of Technology, 12618, Tallinn, Estonia
| | - Mihnea-Alexandru Găman
- "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania; Facoltà di Medicina e Chirurgia, Università degli Studi di Bari "Aldo Moro", Bari, Italy
| | - Amelia Maria Găman
- Department of Pathophysiology, Research Center of Experimental and Clinical Medicine, University of Medicine and Pharmacy of Craiova, Romania; Department of Haematology, Filantropia City Hospital of Craiova, Craiova, Romania
| | - Santosh Yele
- School of Pharmacy and Technology Management, SVKM's NMIMS, Shirpur, India
| | - Asish Kumar Das
- Pharmacy Discipline, School of Life Sciences, Khulna University, Khulna, 9208, Bangladesh
| | | | | | - Hercília Maria Lins Rolim
- Laboratory of Pharmaceutical Nanosystems (NANOSFAR), Postgraduate Pharmaceutical Sciences, Federal University of Piauí, Teresina, Piauí, Brazil
| | | | | | - Nagendra Sastry Yarla
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, 500003, T.N., India
| | - Jamil A Shilpi
- Pharmacy Discipline, School of Life Sciences, Khulna University, Khulna, 9208, Bangladesh
| | - Siddhartha Kumar Mishra
- Cancer Biology Laboratory, School of Biological Sciences (Zoology), Dr. Harisingh Gour Central University, Sagar, 470003, M.P., India
| | - Atanas G Atanasov
- Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Jastrzebiec, Poland; Department of Pharmacognosy, Faculty of Life Sciences, University of Vienna, Althanstrasse 14, A-1090, Vienna, Austria.
| | - Mohammad Amjad Kamal
- King Fahd Medical Research Center, King Abdulaziz University, Saudi Arabia; Enzymoics, 7 Peterlee Place, Hebersham, NSW, 2770, Australia; Novel Global Community Educational Foundation, Australia.
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Ma JW, Hung CM, Lin YC, Ho CT, Kao JY, Way TD. Aloe-emodin inhibits HER-2 expression through the downregulation of Y-box binding protein-1 in HER-2-overexpressing human breast cancer cells. Oncotarget 2018; 7:58915-58930. [PMID: 27391337 PMCID: PMC5312285 DOI: 10.18632/oncotarget.10410] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 06/12/2016] [Indexed: 12/12/2022] Open
Abstract
Human epidermal growth factor receptor-2 (HER-2)-positive breast cancer tends to be aggressive, highly metastatic, and drug resistant and spreads rapidly. Studies have indicated that emodin inhibits HER-2 expression. This study compared the HER-2-inhibitory effects of two compounds extracted from rhubarb roots: aloe-emodin (AE) and rhein. Our results indicated that AE exerted the most potent inhibitory effect on HER-2 expression. Treatment of HER-2-overexpressing breast cancer cells with AE reduced tumor initiation, cell migration, and cell invasion. AE was able to suppress YB-1 expression, further suppressing downstream HER-2 expression. AE suppressed YB-1 expression through the inhibition of Twist in HER-2-overexpressing breast cancer cells. Our data also found that AE inhibited cancer metastasis and cancer stem cells through the inhibition of EMT. Interestingly, AE suppressed YB-1 expression through the downregulation of the intracellular integrin-linked kinase (ILK)/protein kinase B (Akt)/mTOR signaling pathway in HER-2-overexpressing breast cancer cells. In vivo study showed the positive result of antitumor activity of AE in nude mice injected with human HER-2-overexpressing breast cancer cells. These findings suggest the possible application of AE in the treatment of HER-2-positive breast cancer.
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Affiliation(s)
- Jui-Wen Ma
- Institute of Biochemistry, College of Life Science, National Chung Hsing University, Taichung, Taiwan
| | - Chao-Ming Hung
- Department of General Surgery, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan.,School of Medicine, I-Shou University, Kaohsiung, Taiwan
| | - Ying-Chao Lin
- Division of Neurosurgery, Buddhist Tzu Chi General Hospital, Taichung Branch, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan.,Department of Medical Imaging and Radiological Science, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, New Jersey, USA
| | - Jung-Yie Kao
- Institute of Biochemistry, College of Life Science, National Chung Hsing University, Taichung, Taiwan
| | - Tzong-Der Way
- Department of Biological Science and Technology, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan.,Department of Health and Nutrition Biotechnology, College of Health Science, Asia University, Taichung, Taiwan
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Cheng YC, Hueng DY, Huang HY, Chen JY, Chen Y. Magnolol and honokiol exert a synergistic anti-tumor effect through autophagy and apoptosis in human glioblastomas. Oncotarget 2018; 7:29116-30. [PMID: 27074557 PMCID: PMC5045382 DOI: 10.18632/oncotarget.8674] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 03/28/2016] [Indexed: 12/15/2022] Open
Abstract
Glioblastoma (GBM) is a malignant brain tumor associated with a high mortality rate. The aim of this study is to investigate the synergistic effects of honokiol (Hono) and magnolol (Mag), extracted from Magnolia officinalis, on cytotoxicity and inhibition of human GBM tumor progression in cellular and animal models. In comparison with Hono or Mag alone, co-treatment with Hono and Mag (Hono-Mag) decreased cyclin A, D1 and cyclin-dependent kinase 2, 4, 6 significantly, leading to cell cycle arrest in U87MG and LN229 human glioma cells. In addition, phosphorylated phosphoinositide 3-kinase (p-PI3K), p-Akt, and Ki67 were decreased after Hono-Mag treatment, showing proliferation inhibition. Hono-Mag treatment also reduced p-p38 and p-JNK but elevated p-ERK expression. Besides, Hono-Mag treatment induced autophagy and intrinsic and extrinsic apoptosis. Both ERK and autophagy inhibitors enhanced Hono-Mag-induced apoptosis in LN229 cells, indicating a rescuer role of ERK. In human GBM orthotopic xenograft model, the Hono-Mag treatment inhibited the tumor progression and induced apoptosis more efficiently than Temozolomide, Hono, or Mag group. In conclusion, the Hono-Mag exerts a synergistic anti-tumor effect by inhibiting cell proliferation and inducing autophagy and apoptosis in human GBM cells. The Hono-Mag may be applied as an adjuvant therapy to improve the therapeutic efficacy of GBM treatment.
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Affiliation(s)
- Yu-Chen Cheng
- Graduate Institute of Life Science, National Defense Medical Center, Taipei, Taiwan
| | - Dueng-Yuan Hueng
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.,Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan
| | - Hua-Yin Huang
- Graduate Institute of Life Science, National Defense Medical Center, Taipei, Taiwan
| | - Jang-Yi Chen
- Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan
| | - Ying Chen
- Graduate Institute of Life Science, National Defense Medical Center, Taipei, Taiwan.,Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan
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Wang J, Zhang Z, Che Y, Yuan Z, Lu Z, Li Y, Wan J, Sun H, Chen Z, Pu J, He J. Rabdocoestin B exhibits antitumor activity by inducing G2/M phase arrest and apoptosis in esophageal squamous cell carcinoma. Cancer Chemother Pharmacol 2018; 81:469-481. [PMID: 29308536 DOI: 10.1007/s00280-017-3507-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Accepted: 12/19/2017] [Indexed: 12/20/2022]
Abstract
PURPOSE Esophageal squamous cell carcinoma (ESCC) is one of the most aggressive squamous cell carcinomas and is generally resistant to chemotherapy. In the present study, the cytotoxic activity of Rabdocoestin B (Rabd-B) against ESCC and the underlying mechanisms were investigated. METHODS The inhibitory effect of Rabd-B on KYSE30 and KYSE450 was evaluated by Cell Counting Kit-8 (CCK8) and colony formation assays in vitro. The cell cycle distribution and apoptosis of cells treated with Rabd-B were determined by flow cytometry. The mechanisms underlying the effects of Rabd-B were systematically examined by Western blot. The in vivo anti-tumor ability of Rabd-B was measured in mouse xenograft models and cisplatin (DDP) was used as positive control. RESULTS Rabd-B efficiently induced G2/M phase arrest in ESCC cells by upregulating the Chk1/Chk2-Cdc25C axis to inhibit the G2→M transition facilitated by Cdc2/Cyclin B1. Furthermore, Rabd-B suppressed ATM/ATR phosphorylation, thereby inhibiting BRCA1-mediated DNA repair, which resulted in mitotic catastrophe and induced cell apoptosis. Rabd-B also decreased the activity of the Akt and NF-κB survival signaling pathways and ultimately initiated the caspase-9-dependent intrinsic apoptotic pathway in ESCC cells. The apoptosis induced by Rabd-B could be partially reversed by a caspase-9-specific inhibitor (Z-LEHD-FMK) and a pan-caspase inhibitor (Z-VAD-FMK). Moreover, Rabd-B effectively suppressed tumor growth in mouse xenografts which was comparable to that of DDP without significant injuries to the mice. CONCLUSION Taken together, these findings indicate that Rabd-B is a promising precursor compound that may be useful as a treatment for ESCC and thus warrants further investigation.
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Affiliation(s)
- Jingnan Wang
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, People's Republic of China
| | - Zhirong Zhang
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, People's Republic of China
| | - Yun Che
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, People's Republic of China
| | - Zuyang Yuan
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, People's Republic of China
| | - Zhiliang Lu
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, People's Republic of China
| | - Yuan Li
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, People's Republic of China
| | - Jun Wan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, People's Republic of China
| | - Handong Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, People's Republic of China
| | - Zhaoli Chen
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, People's Republic of China.
| | - Jianxin Pu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, People's Republic of China.
| | - Jie He
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, People's Republic of China.
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35
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Deng F, Ma YX, Liang L, Zhang P, Feng J. The pro-apoptosis effect of sinomenine in renal carcinoma via inducing autophagy through inactivating PI3K/AKT/mTOR pathway. Biomed Pharmacother 2018; 97:1269-1274. [DOI: 10.1016/j.biopha.2017.11.064] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 11/09/2017] [Accepted: 11/10/2017] [Indexed: 11/28/2022] Open
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36
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Suvarna V, Murahari M, Khan T, Chaubey P, Sangave P. Phytochemicals and PI3K Inhibitors in Cancer-An Insight. Front Pharmacol 2017; 8:916. [PMID: 29311925 PMCID: PMC5736021 DOI: 10.3389/fphar.2017.00916] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 11/30/2017] [Indexed: 12/11/2022] Open
Abstract
In today's world of modern medicine and novel therapies, cancer still remains to be one of the prime contributor to the death of people worldwide. The modern therapies improve condition of cancer patients and are effective in early stages of cancer but the advanced metastasized stage of cancer remains untreatable. Also most of the cancer therapies are expensive and are associated with adverse side effects. Thus, considering the current status of cancer treatment there is scope to search for efficient therapies which are cost-effective and are associated with lesser and milder side effects. Phytochemicals have been utilized for many decades to prevent and cure various ailments and current evidences indicate use of phytochemicals as an effective treatment for cancer. Hyperactivation of phosphoinositide 3-kinase (PI3K) signaling cascades is a common phenomenon in most types of cancers. Thus, natural substances targeting PI3K pathway can be of great therapeutic potential in the treatment of cancer patients. This chapter summarizes the updated research on plant-derived substances targeting PI3K pathway and the current status of their preclinical studies and clinical trials.
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Affiliation(s)
- Vasanti Suvarna
- Department of Pharmaceutical Chemistry and Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, India
| | - Manikanta Murahari
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, M.S Ramaiah University of Applied Sciences, Bangalore, India
| | - Tabassum Khan
- Department of Pharmaceutical Chemistry and Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, India
| | - Pramila Chaubey
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, India
| | - Preeti Sangave
- Department of Pharmaceutical Sciences, School of Pharmacy and Technology Management, SVKM's NMIMS, Mumbai, India
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Li Z, Dong H, Li M, Wu Y, Liu Y, Zhao Y, Chen X, Ma M. Honokiol induces autophagy and apoptosis of osteosarcoma through PI3K/Akt/mTOR signaling pathway. Mol Med Rep 2017; 17:2719-2723. [PMID: 29207060 DOI: 10.3892/mmr.2017.8123] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 06/08/2017] [Indexed: 11/05/2022] Open
Abstract
Honokiol is the main active constituent of Magnolia officinalis. With effective and long‑term pharmacological functions of being antibacterial, anti‑oxidative, anti‑inflammatory, antitumor, anti‑spasmic, anti‑anxiety and anti‑viral, Honokiol is clinically used in the treatment of acute enteritis and chronic gastritis. The aim of the present study was to observe the possible anti‑effects of honokiol on autophagy and apoptosis of osteosarcoma, and to investigate the role of the PI3K/Akt/mTOR signaling pathway in its anticancer effects. MTT assay was used to evaluate cell proliferation and Annexin V‑fluorescein isothiocyanate/propidium iodide staining flow cytometry was used to analyze the apoptotic rate. The authors identified that honokiol could inhibit cell proliferation and induce the apoptotic rate of osteosarcoma cells. The expression level of Bcl‑2‑like protein 4, caspase‑3 and p53 protein expression were induced and cyclin D1 protein expression was suppressed in osteosarcoma cells by honokiol. Autophagy‑associated LC3II protein expression level was promoted, and PI3K, p‑Akt and p‑mTOR protein expression level was suppressed in osteosarcoma cells by honokiol. The present study demonstrated, to the best of the authors' knowledge, for the first time that honokiol induces autophagy and apoptosis of osteosarcoma cells through the PI3K/Akt/mTOR signaling pathway.
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Affiliation(s)
- Zhiquan Li
- PLA Institute of Orthopedics and Traumatology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Hui Dong
- Department of Orthopedics, The 474th Hospital of PLA, Urumqi, Xinjiang 830013, P.R. China
| | - Mo Li
- PLA Institute of Orthopedics and Traumatology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yaoping Wu
- PLA Institute of Orthopedics and Traumatology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yanwu Liu
- PLA Institute of Orthopedics and Traumatology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yinan Zhao
- PLA Institute of Orthopedics and Traumatology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Xiaochao Chen
- PLA Institute of Orthopedics and Traumatology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Minliang Ma
- PLA Institute of Orthopedics and Traumatology, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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38
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Cavallaro V, Řezníčková E, Jorda R, Alza NP, Murray AP, Kryštof V. Semisynthetic Esters of 17-Hydroxycativic Acid with in Vitro Cytotoxic Activity against Leukemia Cell Lines. Biol Pharm Bull 2017; 40:1923-1928. [PMID: 29093339 DOI: 10.1248/bpb.b17-00477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A collection of sixteen semisynthetic 17-hydroxycativic acid esters with alcohols containing a tertiary amine group was evaluated for their in vitro cytotoxicity against two human cancer cell lines, THP-1 and U937, and for their effects on the cell cycle and cell death. While 17-hydroxycativic acid itself is not cytotoxic, all the esters displayed cytotoxic activity, with 50% growth inhibition (GI50) values ranging between 3.2 and 23.1 µM. In general, the most potent compounds in both cell lines were esters with four carbon long alcohol residues. There was no clear relationship between the identity of the terminal secondary amine and the activity of the compound. Experiments using the 6-(pyrrolidin-1-yl)pentyl ester, 2c, revealed that this compound activates caspases-3/7 and causes poly(ADP-ribose)polymerase 1 (PARP-1) fragmentation in THP-1 and U937 cells, indicating the induction of apoptotic cell death. These results suggest that further investigation into the anticancer activity of diterpene derivatives and other labdane diterpenes may be fruitful.
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Affiliation(s)
- Valeria Cavallaro
- INQUISUR, Departamento de Química, Universidad Nacional del Sur (UNS)-CONICET
| | - Eva Řezníčková
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University and Institute of Experimental Botany AS CR
| | - Radek Jorda
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University and Institute of Experimental Botany AS CR
| | - Natalia Paola Alza
- INQUISUR, Departamento de Química, Universidad Nacional del Sur (UNS)-CONICET
| | - Ana Paula Murray
- INQUISUR, Departamento de Química, Universidad Nacional del Sur (UNS)-CONICET
| | - Vladimír Kryštof
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University and Institute of Experimental Botany AS CR
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Singh SK, Kumar D, Rathore AS. Determination of Critical Quality Attributes for a Biotherapeutic in the QbD Paradigm: GCSF as a Case Study. AAPS JOURNAL 2017; 19:1826-1841. [DOI: 10.1208/s12248-017-0139-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Accepted: 08/18/2017] [Indexed: 12/26/2022]
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40
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Kaempferide Protects against Myocardial Ischemia/Reperfusion Injury through Activation of the PI3K/Akt/GSK-3 β Pathway. Mediators Inflamm 2017; 2017:5278218. [PMID: 28928604 PMCID: PMC5591971 DOI: 10.1155/2017/5278218] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 06/17/2017] [Accepted: 07/16/2017] [Indexed: 12/19/2022] Open
Abstract
The aim of this study is to investigate both the efficacy and mechanism of action of kaempferide (Kae) as a therapy for the treatment of cardiovascular disease. A rat model of myocardial ischemia/reperfusion (I/R) injury was established by ligation of the left anterior descending coronary artery for 30 min followed by a 2 h perfusion. In our study, we show that Kae remarkably improved cardiac function, alleviated myocardial injury via a decrease in myocardial enzyme levels, and attenuated myocardial infarct size in a dose-dependent manner. In addition, preconditioning treatment with Kae was found to significantly decrease serum TNF-α, IL-6, C-reactive protein (CRP), MDA, and ROS levels, while it was found to increase serum levels of SOD. Nuclear factor erythroid 2-related factor 2 (Nrf2) and cleaved caspase-3 expression levels were observed to be downregulated, while phospho-Akt (p-Akt) and phospho-glycogen synthase kinase-3β (p-GSK-3β) expression levels were upregulated. However, cotreatment with LY294002 (a PI3K inhibitor) or TDZD-8 (a GSK-3β inhibitor) was found to abolish the above cardioprotective effects observed with the Kae treatment. The data presented in this study provides evidence that Kae attenuates I/R-induced myocardial injury through inhibition of the Nrf2 and cleaved caspase-3 signaling pathways via a PI3K/Akt/GSK 3β-dependent mechanism.
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Liu F, Gao S, Yang Y, Zhao X, Fan Y, Ma W, Yang D, Yang A, Yu Y. Curcumin induced autophagy anticancer effects on human lung adenocarcinoma cell line A549. Oncol Lett 2017; 14:2775-2782. [PMID: 28928819 PMCID: PMC5588543 DOI: 10.3892/ol.2017.6565] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 06/28/2017] [Indexed: 02/06/2023] Open
Abstract
To investigate the anticancer effects of curcumin-induced autophagy and its effects on the human lung adenocarcinoma A549 cell line, inverted phase contrast microscopy was used to observe alterations to the cytomorphology of cells. An MTT assay was used to measure cell viability. Autophagy was detected using acridine orange (AO) staining and 3-methyladenine (3-MA) was used as an autophagy-specific inhibitor. Dose- and time-dependent A549 cell viability inhibition was observed following curcumin treatment. A dose-dependent increase in the red fluorescent structures in A549 cells was identified following curcumin treatment for 48 h through AO staining. In addition, the activation of autophagy was determined through changes in the number of autophagic vesicles (AVs; fluorescent particles) infected with monodansylcadaverine (MDC). The fluorescence intensity and density of AVs in the curcumin-treated groups were higher at 48 h compared with the control group. Finally, the MTT assay demonstrated that the survival rates of the curcumin-treated cells were increased when pretreated with 3-MA for 3 h, indicating that the inhibitory effect of curcumin on A549 cells is reduced following the inhibition of autophagy. Furthermore, AO and MDC staining confirmed that 3-MA does inhibit the induction of autophagy. Thus, it was hypothesized that the induction of autophagy is partially involved in the reduction of cell viability observed following curcumin treatment. The anticancer effects of curcumin on A549 cells can be reduced using autophagy inhibitors. This suggests a possible cancer therapeutic application of curcumin through the activation of autophagy. These findings have improved the understanding of the mechanism underlying the anticancer property of curcumin.
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Affiliation(s)
- Furong Liu
- Department of Public Health, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Song Gao
- Department of Public Health, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yuxuan Yang
- Department of Public Health, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Xiaodan Zhao
- Department of Public Health, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yameng Fan
- Department of Public Health, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Wenxia Ma
- Department of Public Health, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Danrong Yang
- Department of Public Health, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Aimin Yang
- Department of Nuclear Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yan Yu
- Department of Public Health, Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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Zhang X, Yang H, Yue S, He G, Qu S, Zhang Z, Ma B, Ding R, Peng W, Zhang H, Yang Z, Dou K, Tao K, Li X. The mTOR inhibition in concurrence with ERK1/2 activation is involved in excessive autophagy induced by glycyrrhizin in hepatocellular carcinoma. Cancer Med 2017; 6:1941-1951. [PMID: 28675698 PMCID: PMC5548872 DOI: 10.1002/cam4.1127] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Revised: 04/12/2017] [Accepted: 05/18/2017] [Indexed: 12/22/2022] Open
Abstract
Autophagy is a life phenomenon in which autophagosomes remove damaged or aging organelles and long‐lived circulating proteins to maintain the cell's stability. However, disorders of excessive autophagy are a response of cancer cells to a variety of anticancer treatments which lead to cancer cell death. The Akt/mammalian target of rapamycin (mTOR) and the extracellular signal‐regulated kinase 1/2 (ERK1/2) pathways are both involved in nutrient‐induced autophagic phenomenon and exhibit vital relevance to oncogenesis in various cancer cell types, including hepatocellular carcinoma (HCC). However, the influence of autophagy for cancer cell death remains controversial and few scientists have investigated the variation of these two signaling pathways in cancer cell autophagic phenomenon induced by anticancer treatment simultaneously. Here, we explored the anticancer efficacy and mechanisms of glycyrrhizin (GL), a bioactive compound of licorice with little toxicity in normal cells. It is interesting that inhibition of Akt/mTOR signaling in concurrence with enhanced ERK1/2 activity exists in GL‐induced autophagy and cytotoxicity in HepG2 and MHCC97‐H hepatocellular carcinoma cells. These results imply that the GL‐related anticancer ability might correlate with the induction of autophagy. The influence of induced autophagic phenomenon on cell viability might depend on the severity of autophagy and be pathway specific. In the subsequent subcutaneous xenograft experiment in vivo with MHCC97‐H cells, GL obviously exhibited its inhibitory efficacy in tumor growth via inducing excess autophagy in MHCC97‐H cells (P < 0.05). Our data prompt that GL possesses a property of excess autophagic phenomenon induction in HCC and exerts high anticancer efficacy in vitro and in vivo. This warrants further investigation toward possible clinical applications in patients with HCC.
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Affiliation(s)
- Xuan Zhang
- Department of Hepatobiliary Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Hua Yang
- Department of Geriatrics, Xi'an No. 1 Hospital, Xi'an, Shaanxi, China
| | - Shuqiang Yue
- Department of Oncological Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Guangbin He
- Department of Ultrasound Diagnosis, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Shibin Qu
- Department of Hepatobiliary Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Zhuochao Zhang
- Department of Hepatobiliary Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Ben Ma
- Department of Hepatobiliary Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Rui Ding
- Department of Hepatobiliary Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Wei Peng
- Department of Hepatobiliary Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Hongtao Zhang
- Department of Hepatobiliary Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Zhaoxu Yang
- Department of Hepatobiliary Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Kefeng Dou
- Department of Hepatobiliary Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Kaishan Tao
- Department of Hepatobiliary Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Xiao Li
- Department of Hepatobiliary Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
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Liu Q, Liu J, Wang P, Zhang Y, Li B, Yu Y, Dang H, Li H, Zhang X, Wang Z. Poly-dimensional network comparative analysis reveals the pure pharmacological mechanism of baicalin in the targeted network of mouse cerebral ischemia. Brain Res 2017; 1666:70-79. [PMID: 28465229 DOI: 10.1016/j.brainres.2017.04.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 04/11/2017] [Accepted: 04/14/2017] [Indexed: 12/12/2022]
Abstract
AIM This study aimed to investigate the pure pharmacological mechanisms of baicalin/baicalein (BA) in the targeted network of mouse cerebral ischemia using a poly-dimensional network comparative analysis. METHODS Eighty mice with induced focal cerebral ischemia were randomly divided into four groups: BA, Concha Margaritifera (CM), vehicle and sham group. A poly-dimensional comparative analysis of the expression levels of 374 stroke-related genes in each of the four groups was performed using MetaCore. RESULTS BA significantly reduced the ischemic infarct volume (P<0.05), whereas CM was ineffective. Two processes and 10 network nodes were shared between "BA vs CM" and vehicle, but there were no overlapping pathways. Two pathways, three processes and 12 network nodes overlapped in "BA vs CM" and BA. The pure pharmacological mechanism of BA resulted in targeting of pathways related to development, G-protein signaling, apoptosis, signal transduction and immunity. The biological processes affected by BA were primarily found to correlate with apoptotic, anti-apoptotic and neurophysiological processes. Three network nodes changed from up-regulation to down-regulation, while mitogen-activated protein kinase kinase 6 (MAP2K6, also known as MEK6) changed from down-regulation to up-regulation in "BA vs CM" and vehicle. The changed nodes were all related to cell death and development. CONCLUSION The pure pharmacological mechanism of BA is related to immunity, apoptosis, development, cytoskeletal remodeling, transduction and neurophysiology, as ascertained using a poly-dimensional network comparative analysis.
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Affiliation(s)
- Qiong Liu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, No. 16 Nanxiaojie, Dongzhimennei, Beijing 100700, China
| | - Jun Liu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, No. 16 Nanxiaojie, Dongzhimennei, Beijing 100700, China
| | - Pengqian Wang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, No. 16 Nanxiaojie, Dongzhimennei, Beijing 100700, China
| | - Yingying Zhang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, No. 16 Nanxiaojie, Dongzhimennei, Beijing 100700, China
| | - Bing Li
- Institute of Information on Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, No. 16 Nanxiaojie, Dongzhimennei, Beijing 100700, China
| | - Yanan Yu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, No. 16 Nanxiaojie, Dongzhimennei, Beijing 100700, China
| | - Haixia Dang
- China Academy of Chinese Medical Sciences, No. 16 Nanxiaojie, Dongzhimennei, Beijing 100700, China
| | - Haixia Li
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, No. 16 Nanxiaojie, Dongzhimennei, Beijing 100700, China
| | - Xiaoxu Zhang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, No. 16 Nanxiaojie, Dongzhimennei, Beijing 100700, China
| | - Zhong Wang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, No. 16 Nanxiaojie, Dongzhimennei, Beijing 100700, China.
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Benzyl isothiocyanate induces protective autophagy in human lung cancer cells through an endoplasmic reticulum stress-mediated mechanism. Acta Pharmacol Sin 2017; 38:539-550. [PMID: 28112178 DOI: 10.1038/aps.2016.146] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 11/15/2016] [Indexed: 02/08/2023] Open
Abstract
Isothiocyanates, such as allyl isothiocya¬nate (AITC), benzyl isothiocyanate (BITC), phenethyl isothio¬cyanate (PEITC) and sulforaphane (SFN), are natural compounds abundant in cruciferous vegetables, which have substantial chemopreventive activities against various human malignancies. However, the mechanisms underlying the inhibition of tumor cell growth by isothiocyanates are not fully understood. Since autophagy has dual functions in cancer, in the present study we investigated the effects of BITC on autophagy induction in human lung cancer cells in vitro and in vivo. BITC (1-100 μmol/L) dose-dependently inhibited the growth of 3 different human lung cancer cell lines A549 (adenocarcinoma), H661 (large cell carcinoma) and SK-MES-1 (squamous cell carcinoma) with IC50 values of 30.7±0.14, 15.9±0.22 and 23.4±0.11 μmol/L, respectively. BITC (10-40 μmol/L) induced autophagy in the lung cancer cells, evidenced by the formation of acidic vesicular organelles (AVOs), the accumulation of LC3-II, the punctate pattern of LC3, and the expression of Atg5. Pretreatment with the autophagy inhibitor 3-MA (5 mmol/L) significantly enhanced the BITC-caused growth inhibition in the lung cancer cells. Furthermore, BITC (20-40 μmol/L) activated ER stress, as shown by the increased cytosolic Ca2+ level and the phosphorylation of the ER stress marker proteins PERK and eIF2α in the lung cancer cells. Pretreatment with the ER stress inhibitor 4-PBA (5 mmol/L) attenuated the autophagy induction and potentiated the BITC-induced cell growth inhibition. In nude mice bearing A549 xenografts, administration of BITC (100 mg·kg-1·d-1, ip) for 8 weeks markedly suppressed the lung tumor growth, and significantly enhanced both autophagy and ER stress in the tumor tissues. Our results demonstrate that BITC inhibits human lung cancer cell growth in vitro and in vivo. In addition, BITC induces autophagy in the lung cancer cells, which protects the cancer cells against the inhibitory action of BITC; the autophagy induction is mediated by the ER stress response.
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45
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Islam MT. Diterpenes and Their Derivatives as Potential Anticancer Agents. Phytother Res 2017; 31:691-712. [PMID: 28370843 DOI: 10.1002/ptr.5800] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 02/23/2017] [Accepted: 02/26/2017] [Indexed: 12/21/2022]
Abstract
As therapeutic tools, diterpenes and their derivatives have gained much attention of the medicinal scientists nowadays. It is due to their pledging and important biological activities. This review congregates the anticancer diterpenes. For this, a search was made with selected keywords in PubMed, Science Direct, Web of Science, Scopus, The American Chemical Society and miscellaneous databases from January 2012 to January 2017 for the published articles. A total 28, 789 published articles were seen. Among them, 240 were included in this study. More than 250 important anticancer diterpenes and their derivatives were seen in the databases, acting in the different pathways. Some of them are already under clinical trials, while others are in the nonclinical and/or pre-clinical trials. In conclusion, diterpenes may be one of the lead molecules in the treatment of cancer. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Muhammad Torequl Islam
- Department of Pharmacy, Southern University Bangladesh, Northeast Biotechnology Network (RENORBIO), Postgraduate Program in Biotechnology, Federal University of Piauí, Teresina, 64.049-550, Brazil
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Chen B, Li D, Li M, Li S, Peng K, Shi X, Zhou L, Zhang P, Xu Z, Yin H, Wang Y, Zhao X, Zhu Q. Induction of mitochondria-mediated apoptosis and PI3K/Akt/ mTOR-mediated autophagy by aflatoxin B2 in hepatocytes of broilers. Oncotarget 2016; 7:84989-84998. [PMID: 27863407 PMCID: PMC5356714 DOI: 10.18632/oncotarget.13356] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 10/26/2016] [Indexed: 11/25/2022] Open
Abstract
Aflatoxins have been shown to induce hepatotoxicity in animal models, but the effects of aflatoxin B2 (AFB2) on broiler hepatocytes is unclear. This study aimed to investigate the effects of AFB2 on apoptosis and autophagy to provide an experimental basis for understanding the mechanism of aflatoxin-induced hepatotoxicity. One hundred-twenty Cobb500 broilers were allocated to four groups and exposed to 0 mg/kg, 0.2 mg/kg, 0.4 mg/kg, and 0.8 mg/kg of AFB2 per day for 21 d. AFB2 exerted potent proapoptotic and proautophagic effects on hepatocytes, with increased numbers of apoptotic and autophagic hepatocytes.Poly ADP-ribose polymerase (PARP) was cleaved and caspase-3 was activated in experimental groups, showing that the apoptosis of hepatocytes was triggered by AFB2. Increased levels of the autophagy factors Beclin-1 and LC3-II/LC3-I, as well as down-regulation of p62, a marker of autophagic flux, provided additional evidence for AFB2-triggered autophagy. AFB2 induced mitochondria-mediated apoptosis via the production of reactive oxygen species (ROS) and promotion of the translocation of Bax and cytochrome c (cyt c) between mitochondria and the cytosol, triggering the formation of apoptosomes. AFB2 also inhibited the phosphoinositide 3-kinase/Akt/mammalian target of rapamycin (PI3K/Akt/mTOR) pathway by activating PI3K, Akt, and mTOR and inhibiting their phosphorylation, contributing to the proautophagic activity of AFB2. These findings provide new insights into the mechanisms involved in AFB2-induced hepatotoxicity in broilers.
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Affiliation(s)
- Binlong Chen
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P.R.China, 611130
| | - Diyan Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P.R.China, 611130
| | - Miao Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P.R.China, 611130
| | - Sichen Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P.R.China, 611130
| | - Kenan Peng
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P.R.China, 611130
| | - Xian Shi
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P.R.China, 611130
| | - Lanyun Zhou
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P.R.China, 611130
| | - Pu Zhang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P.R.China, 611130
| | - Zhongxian Xu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P.R.China, 611130
| | - Huadong Yin
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P.R.China, 611130
| | - Yan Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P.R.China, 611130
| | - Xiaoling Zhao
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P.R.China, 611130
| | - Qing Zhu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, P.R.China, 611130
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Ren ZX, Zhao YF, Cao T, Zhen XC. Dihydromyricetin protects neurons in an MPTP-induced model of Parkinson's disease by suppressing glycogen synthase kinase-3 beta activity. Acta Pharmacol Sin 2016; 37:1315-1324. [PMID: 27374489 DOI: 10.1038/aps.2016.42] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 04/21/2016] [Indexed: 12/20/2022] Open
Abstract
AIM It is general believed that mitochondrial dysfunction and oxidative stress play critical roles in the pathology of Parkinson's disease (PD). Dihydromyricetin (DHM), a natural flavonoid extracted from Ampelopsis grossedentata, has recently been found to elicit potent anti-oxidative effects. In the present study, we explored the role of DHM in protecting dopaminergic neurons. METHODS Male C57BL/6 mice were intraperitoneally injected with 1-methyl4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) for 7 d to induce PD. Additionally, mice were treated with either 5 or 10 mg/kg DHM for a total of 13 d (3 d before the start of MPTP, during MPTP administration (7 d) and 3 d after the end of MPTP). For the saline or DHM alone treatment groups, mice were injected with saline or DHM for 13 d. On d 14, behavioral tests (locomotor activity, the rotarod test and the pole test) were administered. After the behavioral tests, the mice were sacrificed, and brain tissue was collected for immunofluorescence staining and Western blotting. In addition, MES23.5 cells were treated with MPP+ and DHM, and evaluated using cell viability assays, reactive oxygen species (ROS) measurements, apoptosis analysis and Western blotting. RESULTS DHM significantly attenuated MPTP-induced mouse behavioral impairments and dopaminergic neuron loss. In the MES23.5 cells, DHM attenuated MPP+-induced cell injury and ROS production in a dose-dependent manner. In addition, DHM increased glycogen synthase kinase-3 beta phosphorylation in a dose- and time-dependent manner, which may be associated with DHM-induced dopaminergic neuronal protection. CONCLUSION The present study demonstrated that DHM is a potent neuroprotective agent for DA neurons by modulating the Akt/GSK-3β pathway, which suggests that DHM may be a promising therapeutic candidate for PD.
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48
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Piya S, Kornblau SM, Ruvolo VR, Mu H, Ruvolo PP, McQueen T, Davis RE, Hail N, Kantarjian H, Andreeff M, Borthakur G. Atg7 suppression enhances chemotherapeutic agent sensitivity and overcomes stroma-mediated chemoresistance in acute myeloid leukemia. Blood 2016; 128:1260-9. [PMID: 27268264 PMCID: PMC5009514 DOI: 10.1182/blood-2016-01-692244] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 05/30/2016] [Indexed: 12/11/2022] Open
Abstract
Autophagy is a cellular adaptive mechanism to stress, including that induced by chemotherapeutic agents. Reverse phase protein array suggested that high expression of the essential autophagy-related protein, Atg7, was associated with shorter remission in newly diagnosed acute myeloid leukemia (AML) patient samples, indicating a role in chemoresistance. Knockdown of Atg7 in AML cells using short hairpin RNA markedly increased apoptosis and DNA damage following treatment with cytarabine and idarubicin. Interestingly, coculture of AML cells with stromal cells increased autophagy and chemoresistance in the AML cells exposed to chemotherapeutic agents, and this was reversed following Atg7 knockdown. This effect was further enhanced by concomitant knockdown of Atg7 in both AML and stromal cells. These findings strongly suggest that Atg7, and likely microenvironment autophagy in general, plays an important role in AML chemoresistance. Mechanistic studies revealed that Atg7 knockdown induced a proapoptotic phenotype in AML cells, which was manifested by an increased NOXA expression at the transcriptional level. Finally, in a mouse model of human leukemia, Atg7 knockdown extended overall survival after chemotherapy. Thus, the inhibition of Atg7 appears to be a valid strategy to enhance chemosensitivity, and it could indeed improve outcomes in AML therapy.
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MESH Headings
- Animals
- Autophagy/drug effects
- Autophagy/genetics
- Autophagy-Related Protein 7/genetics
- Autophagy-Related Protein 7/metabolism
- Drug Resistance, Neoplasm/drug effects
- Drug Resistance, Neoplasm/genetics
- Gene Expression Regulation, Leukemic/drug effects
- Gene Knockdown Techniques
- HL-60 Cells
- Humans
- K562 Cells
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/pathology
- Male
- Mice
- Mice, Inbred NOD
- Mice, SCID
- Proto-Oncogene Proteins c-bcl-2/biosynthesis
- Proto-Oncogene Proteins c-bcl-2/genetics
- Stromal Cells/metabolism
- Stromal Cells/pathology
- Tumor Microenvironment/drug effects
- Tumor Microenvironment/genetics
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Sujan Piya
- Department of Leukemia, Section of Molecular Hematology and Therapy, and
| | | | - Vivian R Ruvolo
- Department of Leukemia, Section of Molecular Hematology and Therapy, and
| | - Hong Mu
- Department of Leukemia, Section of Molecular Hematology and Therapy, and
| | - Peter P Ruvolo
- Department of Leukemia, Section of Molecular Hematology and Therapy, and
| | - Teresa McQueen
- Department of Leukemia, Section of Molecular Hematology and Therapy, and
| | - R Eric Davis
- Department of Lymphoma/Myeloma, University of Texas MD Anderson Cancer Center, Houston, TX
| | | | | | - Michael Andreeff
- Department of Leukemia, Section of Molecular Hematology and Therapy, and
| | - Gautam Borthakur
- Department of Leukemia, Section of Molecular Hematology and Therapy, and
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49
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RLIP76 Depletion Enhances Autophagic Flux in U251 Cells. Cell Mol Neurobiol 2016; 37:555-562. [PMID: 27473470 DOI: 10.1007/s10571-016-0410-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 07/21/2016] [Indexed: 12/19/2022]
Abstract
Our previous study showed that RalA-binding protein 1 (RLIP76) is overexpressed in gliomas and is associated with higher tumour grade and decreased patient survival. Furthermore, RLIP76 downregulation increases chemosensitivity of glioma cells to temozolomide by inducing apoptosis. However, other mechanisms underlying RLIP76-associated chemoresistance are unknown. In this study, we investigated the effect of RLIP76 depletion on autophagy. RLIP76 was knocked down in U251 glioma cells using shRNA and autophagy-related proteins, and PI3K/Akt signalling components were evaluated. RLIP76 depletion significantly increased cell autophagy as demonstrated by a significant increase in LC3 II, autophagy protein 5 (ATG-5), and Beclin1, and a decrease in p62 expression levels. Furthermore, RLIP76 knockdown increased autophagic flux in U251 cells as autolysosome numbers increased relative to autophagosome numbers. Autophagy induced by RLIP76 knockdown resulted in increased apoptosis that was independent of temozolomide treatment. Moreover, RLIP76 knockdown decreased PI3K and Akt activation. RLIP76 depletion also resulted in decreased levels of the anti-apoptotic protein Bcl2. LY294002, a PI3K/Akt pathway inhibitor, led to increased autophagy and apoptosis in U251 RLIP76-depleted cells. Therefore, RLIP76 knockdown increased autophagic flux and apoptosis in U251 glioma cells, possibly through inhibition of the PI3K/Akt pathway. Thus, this study provides a novel mechanism for the role of RLIP76 in glioma pathogenesis and chemoresistance.
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50
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Emodin attenuates TNF-α-induced apoptosis and autophagy in mouse C2C12 myoblasts though the phosphorylation of Akt. Int Immunopharmacol 2016; 34:107-113. [DOI: 10.1016/j.intimp.2016.02.023] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 02/18/2016] [Accepted: 02/20/2016] [Indexed: 11/18/2022]
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