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Liu J, Li T, Zhong G, Pan Y, Gao M, Su S, Liang Y, Ma C, Liu Y, Wang Q, Shi Q. Exploring the therapeutic potential of natural compounds for Alzheimer's disease: Mechanisms of action and pharmacological properties. Biomed Pharmacother 2023; 166:115406. [PMID: 37659206 DOI: 10.1016/j.biopha.2023.115406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/26/2023] [Accepted: 08/28/2023] [Indexed: 09/04/2023] Open
Abstract
Alzheimer's Disease (AD) is a global public health priority characterized by high mortality rates in adults and an increasing prevalence in aging populations worldwide. Despite significant advancements in comprehending the pathogenesis of AD since its initial report in 1907, there remains a lack of effective curative or preventive measures for the disease. In recent years, natural compounds sourced from diverse origins have garnered considerable attention as potential therapeutic agents for AD, owing to their anti-inflammatory, antioxidant, and neuroprotective properties. This review aims to consolidate the therapeutic effects of natural compounds on AD, specifically targeting the reduction of β-amyloid (Aβ) overproduction, anti-apoptosis, autophagy, neuroinflammation, oxidative stress, endoplasmic reticulum (ER) stress, and mitochondrial dysfunction. Notably, the identified compounds exhibiting these effects predominantly originate from plants. This review provides valuable insights into the potential of natural compounds as a reservoir of novel therapeutic agents for AD, thereby stimulating further research and contributing to the development of efficacious treatments for this devastating disease.
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Affiliation(s)
- Jinman Liu
- Affiliated Jiangmen TCM Hospital of Ji'nan University, Jiangmen 529099, China
| | - Tianyao Li
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Guangcheng Zhong
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Yaru Pan
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Minghuang Gao
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Shijie Su
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Yong Liang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Cuiru Ma
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Yuanyue Liu
- Department of Neurology, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210017, China
| | - Qi Wang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China.
| | - Qing Shi
- Affiliated Jiangmen TCM Hospital of Ji'nan University, Jiangmen 529099, China.
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Deficiency of kin17 Facilitates Apoptosis of Cervical Cancer Cells by Modulating Caspase 3, PARP, and Bcl-2 Family Proteins. JOURNAL OF ONCOLOGY 2022; 2022:3156968. [PMID: 35909901 PMCID: PMC9328945 DOI: 10.1155/2022/3156968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/18/2022] [Accepted: 06/25/2022] [Indexed: 11/23/2022]
Abstract
Background The treatment of cervical cancer in the late stage is still quite challenging, because of nonspecificity in conventional therapies and the lack of molecular targeted drugs. It is necessary to find novel biomarkers for cervical cancer treatment. Methods In the present study, cervical cell lines HeLa and SiHa with kin17 knockdown were constructed by transfection of the recombinant lentiviral vector carrying KIN17 siRNA and screened by puromycin. The established cells with kin17 knockdown were determined by fluorescence observation and western blotting. Cell apoptosis and the mitochondrial membrane potential (MMP) were detected by flow cytometry. The activity of caspase 3 enzyme was tested by spectrophotometry. The expression profile of apoptosis-associated proteins was analyzed by western blotting. Finally, we used bioinformatics and proteomic data to analyze KIN-related genes in cervical cancer. Results The results showed high fluorescent positive rates (>90%) and high gene silencing efficiency (>65%) in HeLa and SiHa cells transfected with gene silencing vectors. Moreover, kin17 deficiency decreased the MMP and increased the apoptosis rates in HeLa and SiHa cells, respectively. Furthermore, knockdown of kin17 enhanced the activity of caspase 3 enzyme, increased the expression of cleaved PARP and Bim, while decreasing the expression of Bcl-xL and phosphorylated BAD in HeLa and SiHa cells. Identification of KIN-related prognostic genes in cervical cancer revealed that a total of 5 genes (FZR1, IMPDH1, GPKOW, XPA, and DDX39A) were constructed for this risk score, and the results showed that CTLA4 expressions were negatively correlated with the risk score. Conclusion Our findings demonstrated that kin17 knockdown facilitates apoptosis of cervical cancer cells by targeting caspase 3, PARP, and Bcl-2 family proteins. Besides, kin17 could regulate cancer cell apoptosis through the mitochondrial pathway and could be used as a novel therapeutic target for the regulation of cell apoptosis in cervical cancer.
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Harmine-based dual inhibitors targeting histone deacetylase (HDAC) and DNA as a promising strategy for cancer therapy. Bioorg Chem 2022; 120:105604. [DOI: 10.1016/j.bioorg.2022.105604] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 01/05/2022] [Accepted: 01/05/2022] [Indexed: 12/14/2022]
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Zheng J, Zeng L, Tang M, Lin H, Pi C, Xu R, Cui X. Novel Ferrocene Derivatives Induce G0/G1 Cell Cycle Arrest and Apoptosis through the Mitochondrial Pathway in Human Hepatocellular Carcinoma. Int J Mol Sci 2021; 22:ijms22063097. [PMID: 33803555 PMCID: PMC8003055 DOI: 10.3390/ijms22063097] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 12/11/2022] Open
Abstract
In this study, detailed information on hepatocellular carcinoma (HCC) cells (HepG-2, SMMC-7721, and HuH-7) and normal human liver cell L02 treated by ferrocene derivatives (compounds 1, 2 and 3) is provided. The cell viability assay showed that compound 1 presented the most potent and selective anti-HCC activity. Further mechanism study indicated that the proliferation inhibition effect of compound 1 was associated with the cycle arrest at the G0/G1 phase and downregulation of cyclin D1/CDK4. Moreover, compound 1 could induce apoptosis in HCC cells by loss of mitochondrial membrane potential (ΔΨm), accumulation of reactive oxygen species (ROS), decrease in Bcl-2, increase in BAX and Bad, translocation of Cytochrome c, activation of Caspase-9, -3, and cleavage of PARP. These results indicated that compound 1 would be a promising candidate against HCC through G0/G1 cell cycle arrest-related proliferation inhibition and mitochondrial pathway-dependent apoptosis.
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Affiliation(s)
- Jianrong Zheng
- Engineering Research Centre of Molecular Medicine, Ministry of Education, Fujian Key Laboratory of Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Xiamen Key Laboratory of Marine and Gene Drugs, School of Medicine, Huaqiao University, Xiamen 361021, China; (J.Z.); (L.Z.); (H.L.); (R.X.)
| | - Liao Zeng
- Engineering Research Centre of Molecular Medicine, Ministry of Education, Fujian Key Laboratory of Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Xiamen Key Laboratory of Marine and Gene Drugs, School of Medicine, Huaqiao University, Xiamen 361021, China; (J.Z.); (L.Z.); (H.L.); (R.X.)
| | - Mingqing Tang
- Engineering Research Centre of Molecular Medicine, Ministry of Education, Fujian Key Laboratory of Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Xiamen Key Laboratory of Marine and Gene Drugs, School of Medicine, Huaqiao University, Xiamen 361021, China; (J.Z.); (L.Z.); (H.L.); (R.X.)
- Correspondence: (M.T.); (X.C.)
| | - Hongjun Lin
- Engineering Research Centre of Molecular Medicine, Ministry of Education, Fujian Key Laboratory of Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Xiamen Key Laboratory of Marine and Gene Drugs, School of Medicine, Huaqiao University, Xiamen 361021, China; (J.Z.); (L.Z.); (H.L.); (R.X.)
| | - Chao Pi
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450052, China;
| | - Ruian Xu
- Engineering Research Centre of Molecular Medicine, Ministry of Education, Fujian Key Laboratory of Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Xiamen Key Laboratory of Marine and Gene Drugs, School of Medicine, Huaqiao University, Xiamen 361021, China; (J.Z.); (L.Z.); (H.L.); (R.X.)
| | - Xiuling Cui
- Engineering Research Centre of Molecular Medicine, Ministry of Education, Fujian Key Laboratory of Molecular Medicine, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, Xiamen Key Laboratory of Marine and Gene Drugs, School of Medicine, Huaqiao University, Xiamen 361021, China; (J.Z.); (L.Z.); (H.L.); (R.X.)
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450052, China;
- Correspondence: (M.T.); (X.C.)
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Yang J, Cao L, Li Y, Liu H, Zhang M, Ma H, Wang B, Yuan X, Liu Q. Gracillin Isolated from Reineckia carnea Induces Apoptosis of A549 Cells via the Mitochondrial Pathway. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:233-243. [PMID: 33505158 PMCID: PMC7829125 DOI: 10.2147/dddt.s278975] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 12/10/2020] [Indexed: 12/11/2022]
Abstract
Background Reineckia carnea is commonly used to treat cough, pneumonia and other diseases in China. In our previous study, it was found that the ethanol extracts of Reineckia carnea have a strong inhibitory effect on the proliferation of human lung cancer A549 cells. Here, we isolated gracillin from ethanol extracts for the first time. Purpose Clarify the antiproliferation effect of gracillin on A549 cells and further explore its mechanisms via the mitochondrial pathway. Methods Gracillin was isolated and purified by silica gel, D-101 macroporous resin and preparative RP-HPLC, then identified by NMR and HR-MS. The inhibitory effects of gracillin on the proliferation of A549 cells were detected by the MTS method. Its mechanisms were further explored by flow cytometry and Western blot. Results A steroid saponin, gracillin, was isolated and identified from Reineckia carnea for the first time. In a concentration-dependent and time-dependent manner, gracillin significantly inhibited the proliferation of A549 cells with an IC50 value at 2.54 μmol/L and induced morphological changes. The results of flow cytometry analysis showed that the apoptosis rate of A549 cells was significantly increased (p < 0.05), and the cells proportion was obviously arrested in S phase. The concentration of intracellular calcium was raised (p < 0.01), and the mitochondrial membrane potential was greatly decreased (p < 0.01). In addition, the expression levels of Bax, caspase-3, cleaved caspase-3, and cytochrome C were dramatically up-regulated while Bcl-2 was down-regulated (p < 0.05) in A549 cells. Conclusion This study confirmed that gracillin has a significant antiproliferative effect on A549 cells. Gracillin could induce the apoptosis of A549 cells through the mitochondrial pathway, which might be associated with regulation of the concentration of intracellular calcium, the mitochondrial membrane potential and the expression levels of Bax, Bcl-2, caspase-3, cleaved caspase-3, and cytochrome C.
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Affiliation(s)
- Jianqiong Yang
- Department of Clinical Medicine Research Center, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, People's Republic of China
| | - Ling Cao
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi, People's Republic of China
| | - Yamei Li
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi, People's Republic of China
| | - Hai Liu
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi, People's Republic of China.,National Engineering Research Center for Modernization of Traditional Chinese Medicine - Hakka Medical Resources Branch, Gannan Medical University, Ganzhou, Jiangxi, People's Republic of China
| | - Minhong Zhang
- Department of Clinical Medicine Research Center, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, People's Republic of China
| | - Huamou Ma
- Department of Clinical Medicine Research Center, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, People's Republic of China
| | - Biao Wang
- Department of Clinical Medicine Research Center, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, People's Republic of China
| | - Xiaoliang Yuan
- Department of Respiratory Medicine, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, People's Republic of China
| | - Qian Liu
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, Jiangxi, People's Republic of China.,Department of Pediatric Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, People's Republic of China
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Liu P, Xue Y, Zheng B, Liang Y, Zhang J, Shi J, Chu X, Han X, Chu L. Crocetin attenuates the oxidative stress, inflammation and apoptosisin arsenic trioxide-induced nephrotoxic rats: Implication of PI3K/AKT pathway. Int Immunopharmacol 2020; 88:106959. [PMID: 32919218 DOI: 10.1016/j.intimp.2020.106959] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 08/13/2020] [Accepted: 08/28/2020] [Indexed: 12/11/2022]
Abstract
Arsenic trioxide (ATO)-induced renal toxicity through oxidative stress and apoptosis restricts the therapeutic action of acute myelogenous leukemia. Crocetin (Crt) possesses antioxidant and antiapoptosis properties, and has certain renal protective effects, but it has not been reported that it has protective effect on renal injury caused by ATO. The current study explored the effects and mechanisms of Crt on kidney damage induced by ATO. Fifty Sprague-Dawley rats were randomly divided into five groups. Adult rats were given Crt concurrently with ATO for 1 week. On the 8th day, rats were killed and blood and kidney tissues were collected. Histopathological changes were measured, and kidneytissues and serum were used to determine renal function and antioxidant enzyme activity. In addition, the protein expression levels of P-PI3K, PI3K, P-AKT, AKT, CytC, Bax, Bcl-2 and Caspase-3 were determined via western blot analysis. Results revealed ATO induced renal morphological alterations and activated serum BUN and CRE. Compared with the control group, ROS, MDA, IL-1β, TNF-α, protein carbonyls (PC), lipid hydroperoxides (LOOH) and arsenic concentration levels were found to be significantly increased and SOD, CAT, GSH-Px, GSH and total sulphydryl groups (TSH) levels were attenuated in the ATO group. Crt markedly reduced oxidative stress in ATO-induced nephrotoxicity. Further, ATO induced apoptosis by significantly enhancing CytC, Bax and Caspase-3 and inhibiting Bcl-2. Administration with Crt markedly improved the expression of apoptosis factor. Moreover, Crt treatment stimulated the expressions of P-PI3K, PI3K, P-AKT, AKT induced by ATO. This study indicates Crt could prevent renal injury caused by ATO through inhibiting oxidative stress, inflammation and apoptosis, and its mechanism may be related to activation of PI3K/Akt signaling pathway.
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Affiliation(s)
- Panpan Liu
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang 050200, Hebei, China
| | - Yurun Xue
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang 050200, Hebei, China
| | - Bin Zheng
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang 050200, Hebei, China
| | - Yingran Liang
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang 050200, Hebei, China
| | - Jianping Zhang
- School of Basic Medicine, Hebei University of Chinese Medicine, Shijiazhuang 050200, Hebei, China
| | - Jing Shi
- The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, Hebei, China
| | - Xi Chu
- The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, Hebei, China.
| | - Xue Han
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang 050200, Hebei, China.
| | - Li Chu
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang 050200, Hebei, China.
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Masood N, Dubey V, Luqman S. Activation of Caspase-3 by Terpenoids and Flavonoids in Different Types of Cancer Cells. Curr Top Med Chem 2020; 20:1876-1887. [PMID: 32648841 DOI: 10.2174/1568026620666200710101859] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 01/30/2020] [Accepted: 03/03/2020] [Indexed: 01/02/2023]
Abstract
BACKGROUND Caspase-3 is accountable for the execution of apoptosis. Recently, it has gained attention as a promising target for the discovery of natural products as anticancer agents. METHODS We examined the efficacy of two different sets of natural products (terpenoids and flavonoids) towards caspase-3 activity adopting in silico, cell-free and cell-based activity and real-time gene expression analysis. RESULTS It was observed that terpenes activate caspase-3 activity in both the cell-free and cell-based systems, which was supported by the gene expression analysis, binding energy and activation constant. Flavonoids' action, however, was limited to the cell-based system and transcriptional regulation suggesting their indirect association, which enhanced the enzyme activity and up-regulated the expression of mRNA levels in the cells. Among the tested natural products, (+) carvone was observed to be the best activator of caspase-3 in K562 (34.4 μM), WRL-68 (22.3 μM), HeLa (18.7 μM), MCF-7 (39.4 μM) and MDA-MB-231 cell lines (45.1 μM). CONCLUSION Overall, terpenoids have a persistent activation of caspase-3 in all the investigated systems, while flavonoids circuitously affect the enzyme activity.
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Affiliation(s)
- Nusrat Masood
- Molecular Bioprospection Department of Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow-226015, Uttar Pradesh, India
| | - Vijaya Dubey
- Molecular Bioprospection Department of Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow-226015, Uttar Pradesh, India
| | - Suaib Luqman
- Molecular Bioprospection Department of Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow-226015, Uttar Pradesh, India
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Zhao N, Sun C, Zheng M, Liu S, Shi R. Amentoflavone suppresses amyloid β1-42 neurotoxicity in Alzheimer's disease through the inhibition of pyroptosis. Life Sci 2019; 239:117043. [PMID: 31722188 DOI: 10.1016/j.lfs.2019.117043] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/22/2019] [Accepted: 11/04/2019] [Indexed: 01/09/2023]
Abstract
BACKGROUND The accumulation of Amyloid β (Aβ) plays key roles in Alzheimer's disease (AD) by inducing intracellular reactive oxygen species (ROS) and neuronal cell death. In this study, we aimed to identify the neuroprotective mechanisms of amentoflavone (AF) in Aβ-induce neuronal cell injury. MATERIALS AND METHODS The animal model was established by injecting Aβ1-42 into the bilateral hippocampus. The effect of AF on Aβ1-42-induced neurological dysfunction was examined using the Y-maze and radical maze tests. The hippocampal neuron viability was examined using Nissl staining and TUNEL assay. On the other hand, in vitro studies were conducted using SH-SY5Y cells. The expression level of marker proteins was measured using western blot. The activity of caspase-1 and the levels of pro-inflammatory cytokines were determined using ELISA assay. AMPKα knock down was carried out by transfecting SH-SY5Y cells with siRNA against AMPK transcript. RESULTS Neurological tests showed that AF significantly attenuated Aβ1-42-induced neurological dysfunction. AF suppressed Aβ1-42-induced pyroptosis in the hippocampal region of the rat model, which was associated with the modulation of AMPK/GSK3β signaling. Similar results were obtained in vitro in SH-SY5Y cells exposed to Aβ1-42, showing that the neuroprotective activity of AF is mediated by suppressing pyroptosis through AMPK/GSK3β signaling. CONCLUSION AF inhibits Aβ1-42-induced neurotoxicity in animal and cellular models through AMPK/GSK3β-mediated pyroptosis suppression. Our results highlight AF as a clinical compound for the prevention and treatment of AD.
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Affiliation(s)
- Ningning Zhao
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Chengxin Sun
- Department of Digestive System, Yucheng People's Hospital, Dezhou, China
| | - Mei Zheng
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Shen Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Ran Shi
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China.
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Shen F, Chen Y, Chen L, Qin J, Li Z, Xu J. Amentoflavone Promotes Apoptosis in Non-Small-Cell Lung Cancer by Modulating Cancerous Inhibitor of PP2A. Anat Rec (Hoboken) 2019; 302:2201-2210. [PMID: 31433570 DOI: 10.1002/ar.24229] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/16/2019] [Accepted: 05/07/2019] [Indexed: 12/28/2022]
Abstract
Non-small-cell lung cancer (NSCLC) is one of the most common human malignancies. Amentoflavone (AF) is one of bioflavonoid compounds isolated from Selaginella tamariscina Spring. This study was designed to examine the effect of AF on NSCLC. Our results indicated that AF decreased cell viability of both H1299 and H358 cells. Colony formation assay also showed that AF was able to suppress the anchorage-independent growth of NSCLC cells. AF also triggered cell cycle arrest by downregulating cyclin D1, CDK4, and CDK6. The pro-apoptotic activity of AF was confirmed by Hoechst staining and flow cytometry. The effect of AF on activation of caspase-3, upregulation of Bax, and downregulation of Bcl-2 was examined by western blot. The anti-growth and pro-apoptotic activities of AF were further validated in xenograft murine model. iTRAQ assay showed that cancerous inhibitor of PP2A (CIP2A) expression was markedly downregulated by AF treatment in H1299 cells. In addition, qRT-PCR and western blot also showed that AF was able to dose-dependently inhibit CIP2A expression. Meanwhile, the activity of protein phosphatase 2A (PP2A) was enhanced by AF treatment. The mRNA and protein expression of CIP2A as well as PP2A activity in xenograft tumor tissue were examined, which indicated that the in vivo anticancer activity of AF was associated with downregulation of CIP2A and reactivation of PP2A. Moreover, our results showed that the anti-growth and pro-apoptotic activities of AF were augmented by CIP2A knockdown and attenuated by ectopic CIP2A expression. Our results indicated that AF exhibited anticancer activity in NSCLC by targeting CIP2A. Anat Rec, 302:2201-2210, 2019. © 2019 American Association for Anatomy.
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Affiliation(s)
- Fei Shen
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yijiang Chen
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Liang Chen
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jianwei Qin
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zhi Li
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jing Xu
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Amirghofran Z, Shekofteh N, Ghafourian M, Khosravi N, Kalantar K, Malek-Hosseini S. Tumor Cell Death via Apoptosis and Improvement of Activated Lymphocyte Cytokine Secretion by Extracts from Euphorbia Hebecarpa and Euphorbia Petiolata. Asian Pac J Cancer Prev 2019; 20:1979-1988. [PMID: 31350954 PMCID: PMC6745218 DOI: 10.31557/apjcp.2019.20.7.1979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 07/22/2019] [Indexed: 11/25/2022] Open
Abstract
Background: Immunomodulatory materials from natural herbs and the characterization of their immune enhancement effects may have tremendous potential as cancer treatment. The aim of the present study was to investigate the apoptosis-inducing activities of Euphorbia hebecarpa Boiss and Euphorbia petiolata Banks & Sol. plant extracts and their effects on cytokine secretion by lymphocytes. Materials and Methods: We assessed the apoptosis-inducing effect of the plants’ hexane extracts on previously determined sensitive cell lines (HeLa for E. hebecarpa and K562 for E. petiolata) by flow cytometry and measurement of caspase 3 activation. The apoptosis-related gene expressions were examined by real-time PCR. The effects of the extracts on lymphocyte proliferation and cytokine secretion were examined. Results: Flow cytometry analysis showed that the inhibitory effect of the extracts on tumor cell growth was due to cell apoptosis. The plant extracts at the 100 μg/ml dose induced apoptosis in HeLa (98.5 ± 0.1%) and K562 (57.7 ± 1.9%) cells. The extracts increased caspase 3 activation (≈2-fold>control). Real-time PCR showed Fas and Bax gene upregulation and Bcl-2 downregulation, which resulted in an increased Bax/Bcl-2 expression ratio. The extracts increased lymphocyte proliferation and increased levels of IFN-γ production in the presence and absence of mitogen (p < 0.05). They significantly increased IL-4 and decreased IL-10 secretion by mitogen-stimulated lymphocytes. E. hebecarpa also increased IL-17 release. Conclusion: These results have shown that both extracts possess antitumor activity by inducing apoptosis, possibly through both intrinsic and extrinsic pathways. In addition, they induced secretion of different T helper subset related cytokines that are effective in the immune response against cancer.
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Affiliation(s)
- Zahra Amirghofran
- Department of Immunology, Shiraz University of Medical Sciences, Shiraz, Iran
- Autoimmune Diseases Research Center, and Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Narjes Shekofteh
- Department of Immunology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehri Ghafourian
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Neda Khosravi
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Kurosh Kalantar
- Department of Immunology, Shiraz University of Medical Sciences, Shiraz, Iran
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Qiu R, Ma G, Li X, Shi Q, Li X, Zhou X, Tang Y, Xie Z, Liao S, Qin Y, Wang R, Ye Y, Luo J, Zhang J. Clinical case report of patients with osteosarcoma and anticancer benefit of calycosin against human osteosarcoma cells. J Cell Biochem 2019; 120:10697-10706. [PMID: 30652346 DOI: 10.1002/jcb.28360] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 11/29/2018] [Indexed: 12/18/2022]
Abstract
Osteosarcoma (OS) is a malignant neoplasia in bone, characterized with main occurrence in teenagers. Calycosin (CC), a bioactive compound, is found to play potent pharmacological effects against cancer. Our previous study indicates CC-exerted benefits for anti-OS effect. However, further molecular mechanism behind this action needs to be investigated. In this study, human OS samples and clinical data were collected and used for further test and analysis. In addition, human osteosarcoma cell line (143B) and tumor-xenograft nude mice were used to evaluate antineoplastic activities of CC through a series of biochemical methods and immunoassays, respectively. Compared with non-OS controls, human OS samples showed increased levels of neoplastic microRNA-223 (miR-223), and elevated expressions of NF-κBp65, IκBα proteins in tumor cells. In cell culture study, CC-treated 143B cells showed reduced cell growth, increased lactic dehydrogenase (LD) content, and downregulated cellular miR-223 level. Immunolabeled cells of proliferating cell nuclear antigen, B-cell lymphoma 2 (Bcl-2), poly(ADP-ribose) polymerase (PARP) in CC treatments were decreased dose-dependently, while caspase-3 positive cells were elevated. Further, protein expressions of NF-κBp65, IκBα in CC-treated cells were downregulated. In addition, tumor-xenograft nude mice followed by CC treatments exhibited reductions of tumor mass, miR-223 levels, and Bcl-2, PARP-positive cells, as well as downregulations of NF-κBp65, IκBα protein expressions in OS samples. Taken together, these experimental findings reveal that CC exhibits potential pharmacological activities against OS through inducing apoptosis and inhibiting miR-223-IκBα signaling pathway in neoplastic cells.
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Affiliation(s)
- Rubiao Qiu
- Guangxi Maternal and Child Health Hospital, Guangxi Zhuang Autonomous Region, P. R. China
| | - Gang Ma
- Guangxi Maternal and Child Health Hospital, Guangxi Zhuang Autonomous Region, P. R. China
| | - Xueyu Li
- Guangxi Maternal and Child Health Hospital, Guangxi Zhuang Autonomous Region, P. R. China
| | - Qunfeng Shi
- Guangxi Maternal and Child Health Hospital, Guangxi Zhuang Autonomous Region, P. R. China
| | - Xinning Li
- Guangxi Maternal and Child Health Hospital, Guangxi Zhuang Autonomous Region, P. R. China
| | - Xiong Zhou
- Guangxi Maternal and Child Health Hospital, Guangxi Zhuang Autonomous Region, P. R. China
| | - Yuanyuan Tang
- Guangxi Maternal and Child Health Hospital, Guangxi Zhuang Autonomous Region, P. R. China
| | - Zhaodi Xie
- Department of Cutaneous Surgery, Burns Centre PLA, Xijing Hospital Fourth Military Medical University, Xijing, Shaanxi Province, P. R. China
| | - Shijie Liao
- First Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, P. R. China
| | - Yiwu Qin
- The Second Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, P. R. China
| | - Ruyue Wang
- Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, P. R. China
| | - Yu Ye
- The Second Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, P. R. China
| | - Jiefeng Luo
- The Second Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, P. R. China
| | - Jianfeng Zhang
- The Second Affiliated Hospital of Guangxi Medical University, Guangxi Zhuang Autonomous Region, Nanning, P. R. China
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12
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Chen S, Dong G, Wu S, Liu N, Zhang W, Sheng C. Novel fluorescent probes of 10-hydroxyevodiamine: autophagy and apoptosis-inducing anticancer mechanisms. Acta Pharm Sin B 2019; 9:144-156. [PMID: 30766786 PMCID: PMC6361730 DOI: 10.1016/j.apsb.2018.08.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 07/25/2018] [Accepted: 08/05/2018] [Indexed: 12/21/2022] Open
Abstract
Natural product evodiamine and its derivatives represent a promising class of multi-target antitumor agents. However, the clinical development of these compounds has been hampered by a poor understanding of their antitumor mechanisms. To tackle this obstacle, herein, novel fluorescent probes were designed to elucidate the antitumor mode of action of 10-hydroxyevodiamine. This compound was proven to be distributed in the mitochondria and lysosomes and to act by autophagy and apoptosis mechanisms.
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Key Words
- 10-Hydroxyevodiamine
- 3MA, 3-methyladenine
- Anticancer mechanisms
- Apoptosis
- Autophagy
- Boc, di-tert-butyl dicarbonate
- CCK8, cell counting kit-8
- DMAP, 4-dimethylaminopyridine
- DMSO, dimethylsulfoxide
- EDC, 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride
- Fluorescent probes
- HBTU, O-benzotriazole-N,N,N,N-tetramethyl-uronium-hexafluorophosphate
- MMP, mitochondrial membrane potential
- NPs, natural products
- TEA, trimethylamine
- TFA, trifluoroacetic acid
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13
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Eum WS, Shin MJ, Lee CH, Yeo HJ, Yeo EJ, Choi YJ, Kwon HJ, Kim DS, Kwon OS, Lee KW, Han KH, Park J, Kim DW, Choi SY. Neuroprotective effects of Tat-ATOX1 protein against MPP+-induced SH-SY5Y cell deaths and in MPTP-induced mouse model of Parkinson's disease. Biochimie 2019; 156:158-168. [DOI: 10.1016/j.biochi.2018.10.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Accepted: 10/16/2018] [Indexed: 10/28/2022]
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14
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Liu B, Yu S. RETRACTED: Amentoflavone suppresses hepatocellular carcinoma by repressing hexokinase 2 expression through inhibiting JAK2/STAT3 signaling. Biomed Pharmacother 2018; 107:243-253. [DOI: 10.1016/j.biopha.2018.07.177] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 07/31/2018] [Accepted: 07/31/2018] [Indexed: 12/11/2022] Open
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15
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Zhaohui W, Yingli N, Hongli L, Haijing W, Xiaohua Z, Chao F, Liugeng W, Hui Z, Feng T, Linfeng Y, Hong J. Amentoflavone induces apoptosis and suppresses glycolysis in glioma cells by targeting miR-124-3p. Neurosci Lett 2018; 686:1-9. [PMID: 30153494 DOI: 10.1016/j.neulet.2018.08.032] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/15/2018] [Accepted: 08/24/2018] [Indexed: 12/27/2022]
Abstract
Malignant glioma is the most common type of brain tumor with poor clinical outcome and survival. Therefore, it is imperative to develop novel therapeutic agents for managing glioma. The aim of this study was to investigate the role of amentoflavone (AF), an active flavonoid component in Selaginella tamariscina Spring, in glioma cells and the underlying mechanism of its action. Our results showed that miR-124-3p expression was significantly down-regulated in glioma tissues relative to normal brain tissues. AF decreased cell viability and triggered apoptosis in both glioma cell lines in a dose-dependent manner. AF induced apoptosis and inhibited glycolysis in the glioma cells by upregulating miR-124-3p. Furthermore, AF upregulated miR-124-3p by repressing DNMT1 through Sp1, which in turn was caused by the activation of ROS/AMPK signaling pathway by AF. In conclusion, AF could induce apoptosis and inhibited glycolysis in glioma cells via miR-124-3p. Our findings provide preliminary experimental data that support further investigation on the therapeutic efficacy of AF in glioma.
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Affiliation(s)
- Wang Zhaohui
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Niu Yingli
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China.
| | - Lin Hongli
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Wang Haijing
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Zhang Xiaohua
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Fang Chao
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Wu Liugeng
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Zhang Hui
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Tian Feng
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yang Linfeng
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jiang Hong
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
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16
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Qian H, Li X, Zhang W, Ma L, Sun J, Tang X, Chen Y, Teng L, Wang W, Li D, Xu Y, Li C, Cao Y. Caspase-10, matrix metalloproteinase-9 and total laminin are correlated with the tumor malignancy of clear cell renal cell carcinoma. Oncol Lett 2018; 16:2039-2045. [PMID: 30008898 DOI: 10.3892/ol.2018.8845] [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: 01/26/2018] [Accepted: 05/04/2018] [Indexed: 01/21/2023] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) is a common malignant kidney tumor, the pathogenesis of which remains unclear. The aim of the present study was to investigate whether caspase-10, matrix metalloproteinase-9 (MMP-9) and total laminin (LM) were involved into the pathogenesis of ccRCC. The levels of caspase-10, MMP-9 and total LM were analyzed by ELISA in tumor tissues and adjacent non-malignant tissues of 27 patients with ccRCC. The results revealed that caspase-10 levels in the tumor tissues were significantly higher than those in the adjacent non-malignant tissues (P<0.05). The MMP-9 levels in the tumor tissues were significantly lower than those in adjacent non-malignant tissues (P<0.01). The total LM levels in tumor tissues revealed no statistical difference with those in the adjacent non-malignant tissues (P=0.757). Additionally, caspase-10 levels were positively correlated with MMP-9 levels (P<0.001), but negatively correlated with total LM levels (P<0.05) in tumor tissues. Correlation analyses with clinical data of patients with ccRCC, revealed that caspase-10 levels (P<0.05) and MMP-9 levels (P<0.001) in tumor tissues were positively correlated with tumor grades of ccRCC, whereas total LM levels were positively correlated with tumor size (P<0.05). The results of the present study suggested that interactions between caspase-10, MMP-9 and LM are likely involved in the pathogenesis of ccRCC. A deeper understanding of the correlation between caspase-10, MMP-9 and LM would aid the clarification of pathogenesis of ccRCC.
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Affiliation(s)
- Hua Qian
- Academician Workstation, Harbin Medical University and Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang 150081, P.R. China.,Academician Workstation, Harbin Medical University and Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang 150081, P.R. China
| | - Xiaoguang Li
- Academician Workstation, Harbin Medical University and Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang 150081, P.R. China.,Academician Workstation, Harbin Medical University and Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang 150081, P.R. China
| | - Wei Zhang
- Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang 150081, P.R. China
| | - Liang Ma
- Academician Workstation, Harbin Medical University and Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang 150081, P.R. China
| | - Junfeng Sun
- Department of Cardiovascular Medicine, First Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Xianling Tang
- Eye Hospital, First Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Yongsheng Chen
- Department of Urology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150001, P.R. China
| | - Lichen Teng
- Department of Urology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150001, P.R. China
| | - Wentao Wang
- Department of Urology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150001, P.R. China
| | - Dechao Li
- Department of Urology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150001, P.R. China
| | - Yongpeng Xu
- Department of Urology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150001, P.R. China
| | - Changfu Li
- Department of Urology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150001, P.R. China
| | - Yan Cao
- Department of Urology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150001, P.R. China
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17
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Kawk SH, Kang YR, Kim YH. 1,2,3,4,6-Penta-O-galloyl-β-d-glucose suppresses colon cancer through induction of tumor suppressor. Bioorg Med Chem Lett 2018; 28:2117-2123. [PMID: 29778287 DOI: 10.1016/j.bmcl.2018.05.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 05/11/2018] [Accepted: 05/12/2018] [Indexed: 12/27/2022]
Abstract
Colon cancer is the third most common malignancy in both sexes of Korea. Here, we investigated anti-colorectal cancer effects of 1,2,3,4,6-penta-O-galloyl-β-d-glucose (PGG), a gallotannin from Galla rhois, and its possible mechanisms. PGG induced cytotoxicity and decreased proliferation of colon cancer cells without affecting normal colon fibroblasts. PGG inhibited clonogenic ability and induced apoptosis in cancer cells. One of the underlying mechanisms of the anti-cancer effect exerted by PGG, was owing to the induction p53 expression, a well-known tumor suppressor, and increased in P21, the representative target gene of p53. PGG affected cell-cycle- or apoptosis-related proteins such as cyclin E, CDK2, and Bcl-2, cleaved caspase-3. Also, PGG induced caspase-3/7 activity. These data suggest that PGG exerts anti-colorectal cancer effects.
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Affiliation(s)
- Sang Hee Kawk
- Department of Food and Nutrition, College of Engineering, Daegu University, Gyeongsan 38453, Republic of Korea.
| | - Ye Rim Kang
- Department of Food and Nutrition, College of Engineering, Daegu University, Gyeongsan 38453, Republic of Korea.
| | - Yoon Hee Kim
- Department of Food and Nutrition, College of Engineering, Daegu University, Gyeongsan 38453, Republic of Korea; Research Institute of Anti-aging, Daegu University, Gyeongsan 38453, Republic of Korea.
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18
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Hu M, Li F, Wang W. Vitexin protects dopaminergic neurons in MPTP-induced Parkinson's disease through PI3K/Akt signaling pathway. Drug Des Devel Ther 2018; 12:565-573. [PMID: 29588573 PMCID: PMC5859909 DOI: 10.2147/dddt.s156920] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disease which is characterized by the degeneration of dopaminergic neurons in the substantia nigra pars compacta (SNpc). METHODS In this study, the neuroprotective effect of vitexin (Vit), a flavonoid compound isolated from Crataegus pinnatifida Bunge was examined in PD models both in vitro and in vivo. RESULTS On SH-SY5Y cells, methyl-4-phenylpyridine (MPP+) treatment suppressed cell viability, induced apoptosis, and increased Bax/Bcl-2 ratio and caspase-3 activity. However, Vit improved these parameters induced by MPP+ treatment significantly. Further study disclosed that Vit enhanced the phosphorylation of PI3K and Akt which was downregulated by MPP+ in SH-SY5Y cells, the effect of which could be blocked by PI3K inhibitor LY294002 and activated by PI3K activator IGF-1. Moreover, results from the pole test and traction test suggested that Vit pretreatment prevented bradykinesia and alleviated the initial lesions caused by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) in MPTP-treated mouse PD model. Vit also enhanced the activation of PI3K and Akt and suppressed the ratio of Bax/Bcl-2 and caspase-3 activity in MPTP-treated mice. CONCLUSION Taken together, this study demonstrated that Vit protected dopaminergic neurons against MPP+/MPTP-induced neurotoxicity through the activation of PI3K/Akt signaling pathway. Our findings may facilitate the clinical application of Vit in the therapy of PD.
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Affiliation(s)
- Ming Hu
- Department of Neurology, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong, China
| | - Fangming Li
- Department of Neurology, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong, China
| | - Weidong Wang
- Department of Neurology, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong, China
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19
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Chen C, Li B, Cheng G, Yang X, Zhao N, Shi R. Amentoflavone Ameliorates Aβ 1-42-Induced Memory Deficits and Oxidative Stress in Cellular and Rat Model. Neurochem Res 2018; 43:857-868. [PMID: 29411261 DOI: 10.1007/s11064-018-2489-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 01/23/2018] [Accepted: 01/30/2018] [Indexed: 12/25/2022]
Abstract
Alzheimer's disease (AD), a progressive neurodegenerative disease of the central nervous system, is the most common cause of senile dementia. This study aimed to investigate whether amentoflavone (AF), a biflavonoid compound, could exert neuroprotective activities against AD. The AD model was established by the intracranial injection of amyloid-beta (Aβ) in rat models. The effect of AF on cognitive function was examined using the Morris water maze test. Cell survival and apoptosis in the hippocampal region in an animal model were detected using Nissl staining and a terminal deoxynucleotidyl transferased UTP nick-end labeling assay, respectively. The levels of oxidant enzymes were determined by enzyme-linked immunosorbent assay. Signaling molecule expressions were examined by western blotting. Our results showed that AF significantly attenuated Aβ-induced deficits in neurological functions as well as neuronal cell death and apoptosis in the hippocampal region. Moreover, our findings revealed that AF increased nuclear factor erythroid 2-related factor 2 (Nrf2) expression and translocation and activated AMP-activated protein kinase (AMPK) signaling. In a cellular model of AD established by exposing PC12 cells to Aβ, our results provided further evidence that the neuroprotective activities of AF were mediated by modulating Nrf2 through AMPK/glycogen synthase kinase 3 beta signaling. AF exerts a protective effect against Aβ1-42-induced neurotoxcicity by inducing Nrf2 antioxidant pathways via AMPK signaling activation, which provided experimental evidence that AF might provide a clinical benefit to patients with AD.
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Affiliation(s)
- Chao Chen
- Department of Traditional Chinese Medicine, Shandong Qianfoshan Hospital, 16766 Jingshi Road, Jinan, 250014, China
| | - Bin Li
- Department of Neurology, The Affiliated Hiser Hospital of Qingdao University, Qingdao, China
| | - Guangqing Cheng
- Department of Traditional Chinese Medicine, Shandong Qianfoshan Hospital, 16766 Jingshi Road, Jinan, 250014, China
| | - Xiaoni Yang
- Department of Traditional Chinese Medicine, Shandong Qianfoshan Hospital, 16766 Jingshi Road, Jinan, 250014, China
| | - Ningning Zhao
- Department of Traditional Chinese Medicine, Shandong Qianfoshan Hospital, 16766 Jingshi Road, Jinan, 250014, China
| | - Ran Shi
- Department of Traditional Chinese Medicine, Shandong Qianfoshan Hospital, 16766 Jingshi Road, Jinan, 250014, China.
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20
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Li Z, Zheng X, Li P, Itoua ESR, Moukassa D, Ndinga Andely F. Effects of Acupuncture on mRNA Levels of Apoptotic Factors in Perihematomal Brain Tissue During the Acute Phase of Cerebral Hemorrhage. Med Sci Monit 2017; 23:1522-1532. [PMID: 28357997 PMCID: PMC5384619 DOI: 10.12659/msm.897689] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background To explore the time-dependent effects of acupuncture on mRNA levels of the apoptotic factors BCL-2 and BAX in a rat cerebral hemorrhage model, slow injection of autologous blood to the caudate nucleus was used to generate the cerebral hemorrhage model. Material/Methods A sham surgery control group, groups with acupuncture applied 3, 9, 24, and 48 hours after model induction, and time-matched model-only control groups were used. In situ hybridization was used to detect BCL-2 and BAX mRNA expression, and semi-quantitative RT-PCR was used to measure the expression. Results The number of BCL-2 and BAX mRNA-positive cells significantly increased during the acute phase of cerebral hemorrhage. BCL-2 mRNA was significantly upregulated in acupuncture groups compared to other groups, whereas BAX mRNA levels in the acupuncture groups were lower in the other groups, except for the sham surgery group. Additionally, earlier acupuncture intervention was associated with a lower ratio of expression between the two genes. Changes in BCL-2 and BAX mRNA expression were consistent with changes in the number of cells positive for BCL-2 and BAX mRNA; however, the change in the expression ratio was consistent with the change in the number of cells positive for BCL-2 mRNA, but opposite to the change in the number of cells positive for BAX mRNA. Conclusions Acupuncture ameliorated changes in expression of apoptotic factors in the brain induced by acute cerebral hemorrhage and may thus protect the brain, with greater efficacy when the delay before acupuncture was minimized.
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Affiliation(s)
- Zuowei Li
- Department of Integrated Traditional Chinese and Western Medicine Encephalopathy, Tianjin Nankai Hospital, Tianjin, China (mainland)
| | - Xiaonan Zheng
- Department of Acupuncture, Tianjin Institute of Chinese Medicine, Tianjin, China (mainland)
| | - Ping Li
- Tianjin third central hospital, Tianjin, China (mainland)
| | | | - Donatien Moukassa
- General Hospital of Loandjili, Pointe-Noire, Congo, the Democratic Republic of the
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21
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Xu S, Yao H, Luo S, Zhang YK, Yang DH, Li D, Wang G, Hu M, Qiu Y, Wu X, Yao H, Xie W, Chen ZS, Xu J. A Novel Potent Anticancer Compound Optimized from a Natural Oridonin Scaffold Induces Apoptosis and Cell Cycle Arrest through the Mitochondrial Pathway. J Med Chem 2017; 60:1449-1468. [DOI: 10.1021/acs.jmedchem.6b01652] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shengtao Xu
- State
Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, P. R. China
| | - Hong Yao
- State
Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, P. R. China
| | - Shanshan Luo
- Department
of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, P. R. China
| | - Yun-Kai Zhang
- College
of Pharmacy and Health Sciences, St. John’s University, 8000 Utopia
Parkway, Queens, New York 11439, United States
| | - Dong-Hua Yang
- College
of Pharmacy and Health Sciences, St. John’s University, 8000 Utopia
Parkway, Queens, New York 11439, United States
| | - Dahong Li
- State
Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, P. R. China
- Key
Laboratory of Structure-Based Drug Design and Discovery of Ministry
of Education and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wen Hua Road, Shenyang 110016, China
| | - Guangyu Wang
- State
Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, P. R. China
| | - Mei Hu
- State
Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, P. R. China
| | - Yangyi Qiu
- State
Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, P. R. China
| | - Xiaoming Wu
- State
Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, P. R. China
| | - Hequan Yao
- State
Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, P. R. China
| | - Weijia Xie
- State
Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, P. R. China
| | - Zhe-Sheng Chen
- College
of Pharmacy and Health Sciences, St. John’s University, 8000 Utopia
Parkway, Queens, New York 11439, United States
| | - Jinyi Xu
- State
Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, P. R. China
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22
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Cao Q, Qin L, Huang F, Wang X, Yang L, Shi H, Wu H, Zhang B, Chen Z, Wu X. Amentoflavone protects dopaminergic neurons in MPTP-induced Parkinson's disease model mice through PI3K/Akt and ERK signaling pathways. Toxicol Appl Pharmacol 2017; 319:80-90. [PMID: 28185818 DOI: 10.1016/j.taap.2017.01.019] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 01/23/2017] [Accepted: 01/27/2017] [Indexed: 12/24/2022]
Abstract
Parkinson's disease (PD) is characterized by the progressive degeneration of dopaminergic neurons in substantia nigra pars compacta (SNpc). Mitochondrial dysfunction and cell apoptosis are suggested to be actively involved in the pathogenesis of PD. In the present study, the neuroprotective effect of amentoflavone (AF), a naturally occurring biflavonoid from Selaginella tamariscina, was examined in PD models both in vitro and in vivo. On SH-SY5Y cells, AF treatment dose-dependently reduced 1-methyl-4-phenylpyridinium (MPP+)-induced nuclear condensation and loss of cell viability without obvious cytotoxicity. It inhibited the activation of caspase-3 and p21 but increased the Bcl-2/Bax ratio. Further study disclosed that AF enhanced the phosphorylation of PI3K, Akt and ERK1/2 down-regulated by MPP+ in SH-SY5Y cells, the effect of which could be blocked by LY294002, the inhibitor of PI3K. Consistently, AF alleviated the behavioral deterioration in pole and traction tests and rescued the loss of dopaminergic neurons in SNpc and fibers in striatum in methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) induced mice. It also could enhance the activation of PI3K and Akt as well as Bcl-2/Bax ratio in SN. Moreover, AF alleviated gliosis as well as the gene expression levels of IL-1β and iNOS in SN. Collectively, these results suggested that AF protected dopaminergic neurons against MPTP/MPP+-induced neurotoxicity, which might be mediated through activation of PI3K/Akt and ERK signaling pathways in dopaminergic neurons and attenuation of neuroinflammation.
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Affiliation(s)
- Qin Cao
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, Shanghai Key Laboratory of Complex Prescriptions, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, China
| | - Liyue Qin
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, Shanghai Key Laboratory of Complex Prescriptions, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, China
| | - Fei Huang
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, Shanghai Key Laboratory of Complex Prescriptions, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, China.
| | - Xiaoshuang Wang
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, Shanghai Key Laboratory of Complex Prescriptions, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, China
| | - Liu Yang
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, Shanghai Key Laboratory of Complex Prescriptions, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, China
| | - Hailian Shi
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, Shanghai Key Laboratory of Complex Prescriptions, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, China
| | - Hui Wu
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, Shanghai Key Laboratory of Complex Prescriptions, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, China
| | - Beibei Zhang
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, Shanghai Key Laboratory of Complex Prescriptions, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, China
| | - Ziyu Chen
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, Shanghai Key Laboratory of Complex Prescriptions, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, China
| | - Xiaojun Wu
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, Shanghai Key Laboratory of Complex Prescriptions, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, China.
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Matsuda S, Ichimura M, Ogino M, Nakano N, Minami A, Murai T, Kitagishi Y. Effective PI3K modulators for improved therapy against malignant tumors and for neuroprotection of brain damage after tumor therapy (Review). Int J Oncol 2016; 49:1785-1790. [PMID: 27826621 DOI: 10.3892/ijo.2016.3710] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 09/15/2016] [Indexed: 11/06/2022] Open
Abstract
Due to the key role in various cellular processes including cell proliferation and cell survival on many cell types, dysregulation of the PI3K/AKT pathway represents a crucial step of the pathogenesis in many diseases. Furthermore, the tumor suppressor PTEN negatively regulates the PI3K/AKT pathway through its lipid phosphatase activity, which is recognized as one of the most frequently deleted and/or mutated genes in human cancer. Given the pervasive involvement of this pathway, the development of the molecules that modulate this PI3K/AKT signaling has been initiated in studies which focus on the extensive effective drug discovery. Consequently, the PI3K/AKT pathway appears to be an attractive pharmacological target both for cancer therapy and for neurological protection necessary after the therapy. A better understanding of the molecular relations could reveal new targets for treatment development. We review recent studies on the features of PI3K/AKT and PTEN, and their pleiotropic functions relevant to the signaling pathways involved in cancer progress and in neuronal damage by the therapy.
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Affiliation(s)
- Satoru Matsuda
- Department of Food Science and Nutrition, Nara Women's University, Kita-Uoya Nishimachi, Nara 630-8506, Japan
| | - Mayuko Ichimura
- Department of Food Science and Nutrition, Nara Women's University, Kita-Uoya Nishimachi, Nara 630-8506, Japan
| | - Mako Ogino
- Department of Food Science and Nutrition, Nara Women's University, Kita-Uoya Nishimachi, Nara 630-8506, Japan
| | - Noriko Nakano
- Department of Food Science and Nutrition, Nara Women's University, Kita-Uoya Nishimachi, Nara 630-8506, Japan
| | - Akari Minami
- Department of Food Science and Nutrition, Nara Women's University, Kita-Uoya Nishimachi, Nara 630-8506, Japan
| | - Toshiyuki Murai
- Department of Microbiology and Immunology and Department of Genome Biology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yasuko Kitagishi
- Department of Food Science and Nutrition, Nara Women's University, Kita-Uoya Nishimachi, Nara 630-8506, Japan
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Li Y, Tian X, Sui CG, Jiang YH, Liu YP, Meng FD. Interference of lysine-specific demethylase 1 inhibits cellular invasion and proliferation in vivo in gastric cancer MKN-28 cells. Biomed Pharmacother 2016; 82:498-508. [PMID: 27470390 DOI: 10.1016/j.biopha.2016.04.070] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 04/26/2016] [Accepted: 04/26/2016] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Lysine-specific demethylase 1(LSD1), the first identified histone demethylase, plays an important role in the epigenetic regulation of gene activation and repression. Up-regulated LSD1expression has been reported in several malignant tumors.Our aim, therefore, was to better understand the mechanisms underlying the upregulation of LSD1 in gastric cancer. METHODS We used lentiviral shRNA to knockdown LSD1 in the gastric cancer MKN-28 cell line. Cell proliferation was measured by MTT assay while cell apoptosis was assessed by Annexin V-FITC/PI double staining flow cytometry. The invasive potential of gastric cancer cells was determined by matrigel invasion assay. Protein expression was detected by Western blot. In vivo, the effect of knocking down LSD1 on tumor growth and protein expression in gastric cancer cells in nude mice was investigated. RESULTS LSD1 knockdown in MKN-28 cell lines resulted in increasing the activity of cisplatin in vitro and the inhibition of cancer cell proliferation and invasion, and induced cell apoptosis. The expression of TGF-β1, VEGF, Bcl-2, β-catenin, p-ERK and p-Smad 2/3 proteins was inhibited in LSD1 knockdown cells. Moreover, in an in vivo model of gastric cancer, LSD1 knockdown suppressed tumor growth and protein expression. CONCLUSION LSD1 knockdown affected the fuction of gastric cancer MKN-28 cell line. LSD1 may be a latent target in the diagnosis and therapy of gastric cancer.
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Affiliation(s)
- Yan Li
- Department of Biotherapy, Cancer Research Institute, The First Affiliated Hospital of China Medical University, China
| | - Xin Tian
- Department of Biotherapy, Cancer Research Institute, The First Affiliated Hospital of China Medical University, China
| | - Cheng-Guang Sui
- Department of Biotherapy, Cancer Research Institute, The First Affiliated Hospital of China Medical University, China
| | - You-Hong Jiang
- Department of Biotherapy, Cancer Research Institute, The First Affiliated Hospital of China Medical University, China
| | - Yun-Peng Liu
- Department of Oncology, The First Affiliated Hospital of China Medical University, China
| | - Fan-Dong Meng
- Department of Biotherapy, Cancer Research Institute, The First Affiliated Hospital of China Medical University, China.
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25
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Pu F, Chen F, Lin S, Chen S, Zhang Z, Wang B, Shao Z. The synergistic anticancer effect of cisplatin combined with Oldenlandia diffusa in osteosarcoma MG-63 cell line in vitro. Onco Targets Ther 2016; 9:255-63. [PMID: 26834484 PMCID: PMC4716760 DOI: 10.2147/ott.s90707] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Oldenlandia diffusa (OD) is a well-known traditional Chinese medicine, which is used to prevent and treat many disorders, especially cancers. However, its role in osteosarcoma has not been well understood. Here, we used OD and cisplatin individually and combined in osteosarcoma MG-63 cell to explore whether OD could induce cellular apoptosis and suppress the ability of proliferation and invasion of osteosarcoma MG-63 cell. Methods The changes of cellular shape were analyzed by optical microscopy. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazoliumbromide assay was used to analyze cell survival rate in vitro. Flow cytometry was performed to detect cell cycle and cell death. Scratch migration assay was used to evaluate cell migration and invasion. Western blot was performed to determine the expression levels of pro-apoptotic and anti-apoptotic protein. Results In this study, we found that the survival rate reduced significantly in the combined group compared with the individual group and control group. The apoptosis-inducing effect of combined application was much more significant than that of individual application. The invasion ability of combined application was significantly lower than that of the individual application. In the combined group, there were high expression levels of pro-apoptotic protein and low expression of anti-apoptotic protein. Cell-cycle analysis showed a change in the cell-cycle distribution and arrested cells in G2-M phase. Conclusion In this study, we found that OD inhibited proliferation and induced apoptosis in the human osteosarcoma MG-63 cell line in a time-dependent and dose-dependent manner. In addition, OD displayed inhibitory activity on MG-63 cell proliferation and invasion and the study also showed that OD activity might be mediated by caspase activation. These data suggest that OD might represent a novel, efficient candidate agent for further experimentation in osteosarcoma treatment.
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Affiliation(s)
- Feifei Pu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Fengxia Chen
- Department of Medical Oncology, General Hospital of The Yangtze River Shipping, Wuhan, Hubei, People's Republic of China
| | - Song Lin
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Songfeng Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Zhicai Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Baichuan Wang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Zengwu Shao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
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26
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He H, Tian W, Chen H, Jiang K. MiR-944 functions as a novel oncogene and regulates the chemoresistance in breast cancer. Tumour Biol 2015; 37:1599-607. [PMID: 26298722 DOI: 10.1007/s13277-015-3844-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 07/24/2015] [Indexed: 12/22/2022] Open
Abstract
MircroRNAs are emerging as critical regulators in carcinogenesis and chemoresistance in multiple cancer types. In this study, we observed that the miR-944 level was upregulated in breast cancer patients' serum and tumor tissues, suggesting that miR-944 is a tumor promoter in breast cancer. To investigate the role of miR-944, we performed gain- and loss-of-function experiments in vitro. We then demonstrated that miR-944 promotes cell proliferation and tumor metastasis in breast cancer cell lines. Furthermore, we indicated that miR-944 is associated with cisplatin resistance by targeting BNIP3. Knockdown of the miR-944 by specific inhibitors significantly increased the cytotoxicity of cisplatin in cisplatin-resistant MCF-7 cells (MCF-7/R). Importantly, we found that the sensitization of miR-944 inhibitors to cisplatin cytotoxicity was abolished by BNIP3 siRNA which decreased the expression of BNIP3 gene. Finally, we demonstrated that miR-944 inhibitors promoted the loss of mitochondrial membrane potential (MMP) caused by cisplatin in MCF-7/R cells, resulting in the release of mitochondria-derived apoptogenic proteins into cytoplasm, and then, the caspase-3 was activated. In summary, our study showed that miR-944 functions as a novel oncogene and regulates the cisplatin resistance in breast cancer. The miR-944-BNIP3-MMP-caspase-3 pathway might be a novel target for the chemotherapy of breast cancer.
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Affiliation(s)
- Haifei He
- Department of Surgical Oncology, The Second Affiliated Hospital, School of medicine, Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Wei Tian
- Department of Surgical Oncology, The Second Affiliated Hospital, School of medicine, Zhejiang University, Hangzhou, Zhejiang, 310009, China.,Cancer Institute (The Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), The Second Affiliated Hospital, School of medicine, Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Hailong Chen
- Department of Surgical Oncology, The Second Affiliated Hospital, School of medicine, Zhejiang University, Hangzhou, Zhejiang, 310009, China.,Cancer Institute (The Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), The Second Affiliated Hospital, School of medicine, Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Kai Jiang
- Department of Clinical Laboratory, Tongde Hospital of Zhejiang Province, Gucui Road 234#, Xihu District, Hangzhou city province, Zhejiang, 310012, China.
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27
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Chao Y, Wang Y, Liu X, Ma P, Shi Y, Gao J, Shi Q, Hu J, Yu R, Zhou X. Mst1 regulates glioma cell proliferation via the AKT/mTOR signaling pathway. J Neurooncol 2015; 121:279-88. [PMID: 25373346 DOI: 10.1007/s11060-014-1654-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Accepted: 10/27/2014] [Indexed: 12/30/2022]
Abstract
Mammalian sterile 20-like 1 (Mst1), an upstream serine/threonine-specific protein kinase of the Hippo pathway, is reported to play important roles in tumor suppression and organ size regulation in mammals via regulating cell proliferation and survival. However, whether it is involved in the pathogenesis of malignant gliomas remains poorly understood. Therefore, in the present work, we examined the effect and mechanism of Mst1 on the proliferation and apoptosis of malignant glioma cells. The cell proliferation and growth of glioma cells were examined by EdU incorporation and CCK-8 assay. In addition, the cell apoptosis was assessed by flow cytometry. We found that down-regulation of Mst1 promoted glioma cell proliferation and growth, but inhibited the cell apoptosis. Consistent with this, over-expression of Mst1 inhibited glioma cell proliferation and growth. Interestingly, Mst1 did not affect the phosphorylation of YAP1, the key downstream molecule of Hippo pathway. However, Mst1 was found to bind to AKT in glioma cell and negatively regulated AKT and mTOR activity. Finally, the increased cell proliferation rate induced by Mst1 down-regulation was partially abolished by down-regulation of AKT1. Meanwhile, glioma cell growth inhibition induced by Mst1 over-expression was partially rescued by over-expression of AKT1. Taken together, these findings suggest that Mst1 regulates proliferation of glioma cells via AKT/mTOR signaling pathway.
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Affiliation(s)
- Yuewen Chao
- The Graduate School, Xuzhou Medical College, Xuzhou, Jiangsu, China
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