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Mutlu M, Tunca B, Ak Aksoy S, Tekin C, Egeli U, Cecener G. Inhibitory Effects of Olea europaea Leaf Extract on Mesenchymal Transition Mechanism in Glioblastoma Cells. Nutr Cancer 2020; 73:713-720. [PMID: 32406277 DOI: 10.1080/01635581.2020.1765260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND Glioblastoma (GB) is the most aggressive form of brain tumor. Despite the current treatment methods, the survival rate of patients is very low. Therefore, there is a need to develop new therapeutic agents. The migration and invasion capacity of GB cells is related to mesenchymal transition (MT) mechanism. MATERIALS AND METHODS The effect of OLE on MT was determined by analysis of the Twist, Snail, Zeb1, N-cadherin and E-cadherin genes in the EMT mechanism. The effect of OLE on cell migration was determined by wound healing test. RESULTS 2 mg/ml OLE reduced Twist, Snail, Zeb1 and N-cadherin expression and the combination of OLE + TMZ (2 mg/ml OLE + 350 mM TMZ) increased E-cadherin and reduced Twist, Zeb1 and N-cadherin. In addition, co-treatment with OLE increased TMZ-induced anti-invasion properties thought suppressing transcription factors of MT mechanism. CONCLUSION OLE can enhance the anti-MT activities of TMZ against GB and provide strong evidence that combined treatment with OLE and TMZ has the potential to be an effective alternative approach in GB therapy.
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Affiliation(s)
- Melis Mutlu
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Berrin Tunca
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Secil Ak Aksoy
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Cagla Tekin
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Unal Egeli
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Gulsah Cecener
- Department of Medical Biology, Faculty of Medicine, Uludag University, Bursa, Turkey
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Jeong YJ, Park YY, Park KK, Choi YH, Kim CH, Chang YC. Bee Venom Suppresses EGF-Induced Epithelial-Mesenchymal Transition and Tumor Invasion in Lung Cancer Cells. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2019; 47:1869-1883. [PMID: 31786944 DOI: 10.1142/s0192415x19500952] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
Bee venom of Apis mellifera is a traditional medicine in Asia. It has been used with promoting results for the treatment of pain, rheumatoid, and cancer disease. The purpose of this study was to investigate the effects of bee venom on epidermal growth factor (EGF)-induced epithelial-mesenchymal transition (EMT) in non-small cell lung cancer (NSCLC) and determine possible signaling pathway affected in EGF-induced EMT in A549 cells. Bee venom inhibited EGF-induced F-actin reorganization and cell invasion, and suppressed EGF-induced EMT, processes associated with tumor metastasis in NSCLC. Bee venom enhanced the upregulation of E-cadherin and the downregulation of vimentin and inhibited EGF-induced ERK, JNK, FAK, and mTOR phosphorylation in A549 cells. However, the inhibition of JNK phosphorylation by bee venom was not related to the inhibitory effects of EMT. Furthermore, we found that bee venom suppressed the EMT-related transcription factors ZEB2 and Slug by blocking EGF-induced ERK, FAK and mTOR phosphorylation. Bee venom inhibits EGF-induced EMT by blocking the phosphorylation of ERK, FAK, and mTOR, resulting in the suppression of ZEB2 and Slug. These data suggest bee venom as a potential antimetastatic agent for NSCLC.
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Affiliation(s)
- Yun-Jeong Jeong
- Research Institute of Biomedical Engineering and Department of Medicine, Catholic University of Daegu School of Medicine, Daegu 42472, Korea
| | - Yoon-Yub Park
- Research Institute of Biomedical Engineering and Department of Medicine, Catholic University of Daegu School of Medicine, Daegu 42472, Korea
| | - Kwan-Kyu Park
- Research Institute of Biomedical Engineering and Department of Medicine, Catholic University of Daegu School of Medicine, Daegu 42472, Korea
| | - Yung Hyun Choi
- Department of Biochemistry, Dongeui University College of Korean Medicine, Busan 47227, Republic of Korea
| | - Cheorl-Ho Kim
- Department of Biological Science, Sungkyunkwan University, Suwon, Kyunggi-Do 16419, Republic of Korea
| | - Young-Chae Chang
- Research Institute of Biomedical Engineering and Department of Medicine, Catholic University of Daegu School of Medicine, Daegu 42472, Korea
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Zheng X, Chen Y, Bai M, Liu Y, Xu B, Sun R, Zeng H. The antimetastatic effect and underlying mechanisms of thioredoxin reductase inhibitor ethaselen. Free Radic Biol Med 2019; 131:7-17. [PMID: 30496814 DOI: 10.1016/j.freeradbiomed.2018.11.030] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 11/08/2018] [Accepted: 11/23/2018] [Indexed: 12/21/2022]
Abstract
Treating cancer metastasis is of vital importance to prolong patients' survival. Thioredoxin reductase (TrxR) is overexpressed in many cancer types and has been recognized as an anti-cancer target. The organoselenium compound ethaselen (BBSKE) has been proved to be a TrxR inhibitor and inhibit various types of tumor growth. However, whether BBSKE could inhibit tumor metastasis remains unclear. In this study, we aim to explore the antimetastatic effect of BBSKE and underlying mechanisms. BBSKE was found to dose-dependently suppress migration and invasion of MCF-7 and LoVo cells in vitro. The underlying mechanisms may include inhibition of TrxR activity, elevation of reactive oxygen species (ROS), decrease of EGFR activation and HER2 expression. Besides, the epithelial to mesenchymal transition process and expression of CD44, MMP-9, VEGFR2 and PD-L1 were also abrogated. Decreased migration and invasion, lower expression levels of EGFR, HER2, N-cadherin, CD44, MMP-9, VEGFR2 and PD-L1 were also observed in TrxR1-knockdown MCF-7 and LoVo cells. In the mouse breast cancer 4T1 model, BBSKE not only inhibited progression of primary tumor, but also suppressed formation of metastatic lung nodules and liver micro-metastases, indicating that BBSKE could effectively abolish tumor metastasis. In conclusion, our findings show that BBSKE is able to inhibit migration and invasion of cancer cells in vitro and in vivo, and may be used to prevent and treat metastasis.
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Affiliation(s)
- Xiaoqing Zheng
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, No. 38, Xueyuan Road, Beijing 100191, PR China; Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, PR China
| | - Yifan Chen
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, No. 38, Xueyuan Road, Beijing 100191, PR China; Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, PR China
| | - Man Bai
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, No. 38, Xueyuan Road, Beijing 100191, PR China; Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, PR China
| | - Yuxi Liu
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, No. 38, Xueyuan Road, Beijing 100191, PR China; Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, PR China
| | - Binyuan Xu
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, No. 38, Xueyuan Road, Beijing 100191, PR China; Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, PR China
| | - Ruoxuan Sun
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, No. 38, Xueyuan Road, Beijing 100191, PR China; Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, PR China
| | - Huihui Zeng
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, No. 38, Xueyuan Road, Beijing 100191, PR China; Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, No. 38, Xueyuan Road, Beijing 100191, PR China.
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Role of Corneal Stromal Cells on Epithelial Cell Function during Wound Healing. Int J Mol Sci 2018; 19:ijms19020464. [PMID: 29401709 PMCID: PMC5855686 DOI: 10.3390/ijms19020464] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 01/31/2018] [Accepted: 02/01/2018] [Indexed: 01/12/2023] Open
Abstract
Following injury, corneal stromal keratocytes transform into repair-phenotype of activated stromal fibroblasts (SFs) and participate in wound repair. Simultaneously, ongoing bi-directional communications between corneal stromal-epithelial cells also play a vital role in mediating the process of wound healing. Factors produced by stromal cells are known to induce proliferation, differentiation, and motility of corneal epithelial cells, which are also subsequently the main processes that occur during wound healing. In this context, the present study aims to investigate the effect of SFs conditioned medium (SFCM) on corneal epithelial cell function along with substance P (SP). Antibody microarrays were employed to profile differentially expressed cell surface markers and cytokines in the presence of SFCM and SP. Antibody microarray data revealed enhanced expression of the ITGB1 in corneal epithelial cells following stimulation with SP whereas SFCM induced abundant expression of IL-8, ITGB1, PD1L1, PECA1, IL-15, BDNF, ICAM1, CD8A, CD44 and NTF4. All these proteins have either direct or indirect roles in epithelial cell growth, movement and adhesion related signaling cascades during tissue regeneration. We also observed activation of MAPK signaling pathway along with increased expression of focal adhesion kinase (FAK), paxillin, vimentin, β-catenin and vasodilator-stimulated phosphoprotein (VASP) phosphorylation. Additionally, epithelial-to-mesenchymal transition (EMT) regulating transcription factors Slug and ZEB1 expression were enhanced in the presence of SFCM. SP enriched the expression of integrin subunits α4, α5, αV, β1 and β3 whereas SFCM increased α4, α5, αV, β1 and β5 integrin subunits. We also observed increased expression of Serpin E1 following SP and SFCM treatment. Wound healing scratch assay revealed enhanced migration of epithelial cells following the addition of SFCM. Taken together, we conclude that SFCM-mediated sustained activation of ZEB1, Slug in combination with upregulated migration-associated integrins and ERK (Extracellular signal-regulated kinase)-FAK-paxillin axis, may lead to induce type 2 EMT-like changes during corneal epithelial wound healing.
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Torilis japonica extract fraction compound, EGFR-targeted inhibition of cancer abnormal metastasis in A549 lung cancer cells. Oncol Rep 2017; 38:1206-1212. [DOI: 10.3892/or.2017.5771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 06/14/2017] [Indexed: 11/05/2022] Open
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Kim GT, Lee SH, Kim YM. Torilis japonica extract-generated intracellular ROS induces apoptosis by reducing the mitochondrial membrane potential via regulation of the AMPK-p38 MAPK signaling pathway in HCT116 colon cancer. Int J Oncol 2016; 49:1088-98. [PMID: 27314881 DOI: 10.3892/ijo.2016.3578] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 05/24/2016] [Indexed: 11/06/2022] Open
Abstract
Torilis japonica extract (TJE) has been reported to possess diverse medicinal properties including anti‑inflammatory and antibacterial activities. However, the precise mechanism of its anticancer effect is not understood. Thus, we evaluated the apoptotic effects of TJE and examined its underlying molecular mechanisms in HCT116 colorectal cancer cells. Our results show that TJE induces apoptosis through the generation of intracellular reactive oxygen species (ROS), and that it regulates the mitochondrial outer membrane potential via the AMPK/p38 MAPK signaling pathway. Importantly, ~50% of cancer cells have p53 mutations. Thus, the ability to induce apoptosis in a p53-independent manner would be of great value in cancer treatment. Our results show that not only does TJE regulate the AMPK/p38 signaling pathway, but it induces apoptosis in cells in which p53 has been knocked down using siRNA. Moreover, as in in vitro studies, TJE induced apoptosis and regulated apoptosis related-proteins in an HCT 116 xenograft model. Taken together, our results demonstrate that TJE, a natural compound that may provide a substitute for chemotherapeutic drugs, has potential as an anticancer agent.
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Affiliation(s)
- Guen Tae Kim
- Department of Biological Sciences, College of Life Science and Nano Technology, Hannam University, Yuseong-gu, Daejeon 305-811, Republic of Korea
| | - Se Hee Lee
- Pharma-gene Inc., Yuseong-gu, Daejeon 305-811, Republic of Korea
| | - Young Min Kim
- Department of Biological Sciences, College of Life Science and Nano Technology, Hannam University, Yuseong-gu, Daejeon 305-811, Republic of Korea
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