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Joo HY, Jung JK, Kim MY, Woo SR, Jeong JM, Park ER, Kim YM, Park JJ, Kim J, Yun M, Shin HJ, Lee KH. NADH elevation during chronic hypoxia leads to VHL-mediated HIF-1α degradation via SIRT1 inhibition. Cell Biosci 2023; 13:182. [PMID: 37777750 PMCID: PMC10543270 DOI: 10.1186/s13578-023-01130-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 09/08/2023] [Indexed: 10/02/2023] Open
Abstract
BACKGROUND Under conditions of hypoxia, cancer cells with hypoxia inducible factor-1α (HIF-1α) from heterogeneous tumor cells show greater aggression and progression in an effort to compensate for harsh environmental conditions. Extensive study on the stability of HIF-1α under conditions of acute hypoxia in cancer progression has been conducted, however, understanding of its involvement during the chronic phase is limited. METHODS In this study, we investigated the effect of SIRT1 on HIF1 stability in a typical chronic hypoxic conditon that maintains cells for 24 h under hypoxia using Western blotting, co-IP, measurement of intracellular NAD + and NADH levels, semi-quantitative RT-PCR analysis, invasion assay, gene knockdown. RESULTS Here we demonstrated that the high concentration of pyruvate in the medium, which can be easily overlooked, has an effect on the stability of HIF-1α. We also demonstrated that NADH functions as a signal for conveyance of HIF-1α degradation via the SIRT1 and VHL signaling pathway under conditions of chronic hypoxia, which in turn leads to attenuation of hypoxically strengthened invasion and angiogenic activities. A steep increase in the level of NADH occurs during chronic hypoxia, leading to upregulation of acetylation and degradation of HIF-1α via inactivation of SIRT1. Of particular interest, p300-mediated acetylation at lysine 709 of HIF-1α is recogonized by VHL, which leads to degradation of HIF-1α via ubiquitin/proteasome machinary under conditions of chronic hypoxia. In addition, we demonstrated that NADH-elevation-induced acetylation and subsequent degradation of HIF-1α was independent of proline hydroxylation. CONCLUSIONS Our findings suggest a critical role of SIRT1 as a metabolic sensor in coordination of hypoxic status via regulation of HIF-1α stability. These results also demonstrate the involvement of VHL in degradation of HIF-1α through recognition of PHD-mediated hydroxylation in normoxia and p300-mediated HIF-1α acetylation in hypoxia.
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Affiliation(s)
- Hyun-Yoo Joo
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
- Lab. of Biochemistry, School of Life Sciences & Biotechnology, Korea University, Seoul, Korea
| | - Jin Kyu Jung
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Korea
- Neuro-Oncology Branch, The Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Mi-Yeon Kim
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
| | - Seon Rang Woo
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
- Department of Otolaryngology-Head and Neck Surgery, Kyung Hee University School of Medicine, Hyung Hee University Medical Center, Seoul, Republic of Korea
| | - Jae Min Jeong
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
| | - Eun-Ran Park
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
| | - Yong-Min Kim
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
| | - Joong-Jean Park
- Department of Physiology, College of Medicine, Korea University, Seoul, Korea
| | - Joon Kim
- Lab. of Biochemistry, School of Life Sciences & Biotechnology, Korea University, Seoul, Korea
| | - Miyong Yun
- Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul, Korea.
| | - Hyun-Jin Shin
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul, Korea.
| | - Kee-Ho Lee
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul, Korea.
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Lee SY, Kim EO, Jang D, Hwang S, Rhee KJ, Yun M. Method to Determine the Optimal Aptamer-to-Bead Ratio by Using Flow Cytometry. Scientifica (Cairo) 2023; 2023:5842652. [PMID: 37469438 PMCID: PMC10353897 DOI: 10.1155/2023/5842652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 06/22/2023] [Accepted: 06/27/2023] [Indexed: 07/21/2023]
Abstract
Research on the effective attachment of aptamers to beads, which is essential for using aptamers, has made relatively little progress. Here, we demonstrate a new method based on flow cytometry to determine the optimal aptamer-to-bead ratio for aptamer immobilization. The fluorescence intensity increased with a gradual two-fold increase in the aptamer fluorescence concentration, peaked at an aptamer-to-bead ratio of 2.56 × 105, and tended to decrease at higher ratios. A similar pattern was observed in an additional analysis using fluorescence microscopy. However, measurement of the free aptamer concentration after the aptamer-bead conjugation reaction revealed a large aptamer loss compared to the 1.28 × 105 aptamer-bead ratio. In addition, the binding efficiency of the aptamer/bead to the target was highest at the aptamer-to-bead ratio of 1.28 × 105. Taken together, our data suggest that the proposed method is the best and easiest for determining the optimal aptamer-to-bead ratio.
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Affiliation(s)
- Sun Young Lee
- Lab of Functional Aptamer, Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul, Republic of Korea
- Resource Upcycling and Discovery Research Institute, Sejong University, Seoul, Republic of Korea
| | - Eun-Ok Kim
- Medical Science Research Center, Korea University College of Medicine, Seoul, Republic of Korea
| | - Daehyuk Jang
- Lab of Functional Aptamer, Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul, Republic of Korea
- Resource Upcycling and Discovery Research Institute, Sejong University, Seoul, Republic of Korea
| | - Soonjae Hwang
- Department of Biochemistry, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon, Republic of Korea
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Software & Digital Healthcare Convergence, Yonsei University MIRAE Campus, Wonju, Gangwon-do, Republic of Korea
| | - Miyong Yun
- Lab of Functional Aptamer, Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul, Republic of Korea
- Resource Upcycling and Discovery Research Institute, Sejong University, Seoul, Republic of Korea
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3
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Lee SY, Jang DH, Kim H, Yun M. Removal and isolation of radioactive cobalt using DNA aptamers. RADIOCHIM ACTA 2023. [DOI: 10.1515/ract-2022-0112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Abstract
Electricity generation using nuclear power has various advantages, such as carbon reduction, but the treatment of nuclear waste is emerging as a big issue in many countries. The development of technology that can selectively remove radionuclides from liquid radioactive waste is one of the ways to reduce nuclear waste. Here, we assessed a new way of removing radioactive cobalt from a liquid using an aptamer. Aptamers specifically binding cobalt ions were selected through systematic evolution of ligands by exponential enrichment (SELEX). Their binding strength and stability of their complexes with cobalt were analyzed through surface plasmon resonance assay and 2D program Mfold, respectively. The optimal aptamer/bead conjugate conditions for binding cobalt were established using an FA-C1 aptamer with the strongest binding to cobalt. Under these conditions, more than 80% of radioactive cobalt was removed, and more than 99.95% of removed cobalt was recovered. These results proved that radioactive cobalt removal using this aptamer can effectively reduce liquid radioactive waste. This means that the aptamer/bead complex can be utilized to remove various radioactive metal ions.
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Affiliation(s)
- Sun Young Lee
- Laboratory of Functional Aptamers, Department of Bioindustry and Bioresource Engineering , College of Life Sciences, Sejong University , Seoul , South Korea
- Resource Upcycling and Discovery Research Institute, Sejong University , Seoul , South Korea
| | - Dae Hyuk Jang
- Laboratory of Functional Aptamers, Department of Bioindustry and Bioresource Engineering , College of Life Sciences, Sejong University , Seoul , South Korea
- Resource Upcycling and Discovery Research Institute, Sejong University , Seoul , South Korea
| | - Hyuncheol Kim
- Environmental Radioactivity Assessment Team , Korea Atomic Energy Research Institute , Daejeon , South Korea
| | - Miyong Yun
- Laboratory of Functional Aptamers, Department of Bioindustry and Bioresource Engineering , College of Life Sciences, Sejong University , Seoul , South Korea
- Environmental Radioactivity Assessment Team , Korea Atomic Energy Research Institute , Daejeon , South Korea
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4
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Xu CK, Cheng C, Appleton PN, Duc PA, Gao Y, Tang NY, Yun M, Dai YS, Huang JS, Lisenfeld U, Renaud F. A 0.6 Mpc H I structure associated with Stephan's Quintet. Nature 2022; 610:461-466. [PMID: 36261547 PMCID: PMC9581777 DOI: 10.1038/s41586-022-05206-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 08/08/2022] [Indexed: 11/09/2022]
Abstract
Stephan’s Quintet (SQ, co-moving radial distance = 85 ± 6 Mpc, taken from the NASA/IPAC Extragalactic Database (NED)1) is unique among compact groups of galaxies2–12. Observations have previously shown that interactions between multiple members, including a high-speed intruder galaxy currently colliding into the intragroup medium, have probably generated tidal debris in the form of multiple gaseous and stellar filaments6,8,13, the formation of tidal dwarfs7,14,15 and intragroup-medium starbursts16, as well as widespread intergalactic shocked gas5,10,11,17. The details and timing of the interactions and collisions remain poorly understood because of their multiple nature18,19. Here we report atomic hydrogen (H i) observations in the vicinity of SQ with a smoothed sensitivity of 1σ = 4.2 × 1016 cm−2 per channel (velocity bin-width Δv = 20 km s−1; angular resolution = 4′), which are about two orders of magnitude deeper than previous observations8,13,20,21. The data show a large H i structure (with linear scale of around 0.6 Mpc) encompassing an extended source of size approximately 0.4 Mpc associated with the debris field and a curved diffuse feature of length around 0.5 Mpc attached to the south edge of the extended source. The diffuse feature was probably produced by tidal interactions in early stages of the formation of SQ (>1 Gyr ago), although it is not clear how the low-density H i gas (NH i ≲ 1018 cm−2) can survive the ionization by the intergalactic ultraviolet background on such a long time scale. Our observations require a rethinking of properties of gas in outer parts of galaxy groups and demand complex modelling of different phases of the intragroup medium in simulations of group formation. Atomic hydrogen observations in the vicinity of Stephan’s Quintet are reported, showing a large gaseous structure of around 0.6 Mpc in size in the velocity range of 6,550–6,750 km s−1.
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Affiliation(s)
- C K Xu
- Chinese Academy of Sciences South America Center for Astronomy, National Astronomical Observatories, CAS, Beijing, People's Republic of China. .,National Astronomical Observatories, Chinese Academy of Sciences (NAOC), Beijing, People's Republic of China.
| | - C Cheng
- Chinese Academy of Sciences South America Center for Astronomy, National Astronomical Observatories, CAS, Beijing, People's Republic of China. .,National Astronomical Observatories, Chinese Academy of Sciences (NAOC), Beijing, People's Republic of China.
| | | | - P-A Duc
- Université de Strasbourg, CNRS, Observatoire astronomique de Strasbourg, UMR 7550, Strasbourg, France
| | - Y Gao
- Department of Astronomy, Xiamen University, Xiamen, People's Republic of China.,Purple Mountain Observatory & Key Laboratory for Radio Astronomy, Chinese Academy of Sciences, Nanjing, People's Republic of China
| | - N-Y Tang
- Department of Physics, Anhui Normal University, Wuhu, People's Republic of China
| | - M Yun
- Department of Astronomy, University of Massachusetts, Amherst, MA, USA
| | - Y S Dai
- Chinese Academy of Sciences South America Center for Astronomy, National Astronomical Observatories, CAS, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences (NAOC), Beijing, People's Republic of China
| | - J-S Huang
- Chinese Academy of Sciences South America Center for Astronomy, National Astronomical Observatories, CAS, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences (NAOC), Beijing, People's Republic of China
| | - U Lisenfeld
- Dept. Física Teórica y del Cosmos, Campus de Fuentenueva, Edificio Mecenas, Universidad de Granada, Granada, Spain.,Instituto Carlos I de Física Teórica y Computacional, Facultad de Ciencias, Granada, Spain
| | - F Renaud
- Department of Astronomy and Theoretical Physics, Lund Observatory, Lund, Sweden
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Yi YS, Yun M. Editorial of Special Issue “Roles of Inflammasomes and Methyltransferases in Inflammation”. Int J Mol Sci 2022; 23:ijms231810283. [PMID: 36142195 PMCID: PMC9499493 DOI: 10.3390/ijms231810283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 09/05/2022] [Indexed: 11/16/2022] Open
Affiliation(s)
- Young-Su Yi
- Department of Life Sciences, Kyonggi University, Suwon 16227, Korea
- Correspondence: (Y.-S.Y.); (M.Y.); Tel.: +82-31-249-9644 (Y.-S.Y.); +82-02-3408-2977 (M.Y.)
| | - Miyong Yun
- Department of Bioindustry and Bioresource Engineering, Sejong University, Seoul 05006, Korea
- Correspondence: (Y.-S.Y.); (M.Y.); Tel.: +82-31-249-9644 (Y.-S.Y.); +82-02-3408-2977 (M.Y.)
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Yang QL, Zhang XY, Xiong DQ, Zhu YY, Yun M, Jia MM, Fu PK, Liu JC, Dong XY. TWO NEW SELF-ASSEMBLED CADMIUM(II) METAL-ORGANIC FRAMEWORKS CONSTRUCTED OF A FLEXIBLE TRIPODAL LIGAND: SYNTHESIS, STRUCTURE, AND THERMAL STABILITY. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621110068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Noh JK, Woo SR, Yun M, Lee MK, Kong M, Min S, Kim SI, Lee YC, Eun YG, Ko SG. SOD2- and NRF2-associated Gene Signature to Predict Radioresistance in Head and Neck Cancer. Cancer Genomics Proteomics 2021; 18:675-684. [PMID: 34479919 DOI: 10.21873/cgp.20289] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/19/2021] [Accepted: 07/22/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND We propose a novel prognostic biomarker-based strategy for increasing the efficacy of radiotherapy (RT) in head and neck squamous cell carcinoma (HNSCC). MATERIALS AND METHODS We identified genes associated with superoxide dismutase 2 (SOD2) and nuclear factor erythroid-2-related factor 2 (NRF2) from gene-expression data of The Cancer Genome Atlas (TCGA) by calculating Pearson correlation. Patients were divided into two groups using hierarchical clustering. Colony-formation assay was performed to determine radioresistance in HNSCC cell line CAL27. Pathway analysis was conducted using The Database for Annotation, Visualization and Integrated Discovery (DAVID). RESULTS We developed a 49-gene signature with SOD2- and NRF2-associated genes. Using mRNA expression data for the 49-gene signature, we performed hierarchical clustering to stratify patients into two subtypes, subtype A and B. In the TCGA cohort, subgroup A demonstrated a better prognosis than subgroup B in patients who received RT. The signature robustness was evaluated in other independent cohorts. We showed through colony-formation assay that depletion of SOD2 or NRF2 leads to increased radiosensitivity. CONCLUSION We identified and validated a robust gene signature of SOD2- and NRF2-associated genes in HNSCC and confirmed their link to radioresistance using in vitro assay, providing a novel biomarker for the evaluation of HNSCC prognosis.
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Affiliation(s)
- Joo Kyung Noh
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - Seon Rang Woo
- Department of Otolaryngology-Head and Neck Surgery, Kyung Hee University Medical Center, Seoul, Republic of Korea
| | - Miyong Yun
- Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul, Republic of Korea
| | - Min Kyeong Lee
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - Moonkyoo Kong
- Department of Radiation Oncology, Kyung Hee University Medical Center, Seoul, Republic of Korea
| | - Soonki Min
- Department of Radiation Oncology, Kyung Hee University Medical Center, Seoul, Republic of Korea
| | - Su Il Kim
- Department of Otolaryngology-Head and Neck Surgery, Kyung Hee University Medical Center, Seoul, Republic of Korea
| | - Young Chan Lee
- Department of Otolaryngology-Head and Neck Surgery, Kyung Hee University Medical Center, Seoul, Republic of Korea
| | - Young-Gyu Eun
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, Seoul, Republic of Korea; .,Department of Otolaryngology-Head and Neck Surgery, Kyung Hee University Medical Center, Seoul, Republic of Korea
| | - Seong-Gyu Ko
- Department of Preventive Medicine, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
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8
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Park JY, Kang SE, Ahn KS, Um JY, Yang WM, Yun M, Lee SG. Inhibition of the PI3K-AKT-mTOR pathway suppresses the adipocyte-mediated proliferation and migration of breast cancer cells. J Cancer 2020; 11:2552-2559. [PMID: 32201525 PMCID: PMC7065999 DOI: 10.7150/jca.37975] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 12/24/2019] [Indexed: 12/25/2022] Open
Abstract
Objective: Although it is well known that adipocyte significantly affects breast cancer progression, its mechanism has not been fully understood. Here, we analyzed the effect of adipocytes on breast cancer progression including cell proliferation and migration. Materials and Methods: We treated the conditioned media obtained from mouse 3T3-L1-derived or human adipose tissue-derived mesenchymal stem cells (hAMSC)-derived adipocytes to breast cancer cells, MCF-7 and MDA-MB-231. And then, cells viability and proliferation were analyzed using MTT assays and colony forming assays, respectively. Also mRNA expression of inflammatory cytokines and proteins expression in main signal pathway were analyzed by RT-qPCR and immunoblotting, respectively. Results: Adipocyte-derived conditioned media increased the proliferation and migration of MCF-7 and MDA-MB-231 cells while little effects in a human normal immortalized mammary epithelial cell line MCF10A. In addition, adipocyte-derived conditioned media induced phosphorylation of AKT and mTOR and upregulated the expression of target genes of the PI3K-AKT-mTOR pathway including IL6, IL1β, IL1α and TNFα in breast cancer cells. Furthermore, BEZ235 a dual inhibitor of PI3K and mTOR significantly decreased the adipocyte-mediated the proliferation and migration of breast cancer cells. Conclusion: Adipocyte-derived conditioned media enhance the proliferation and migration of breast cancer cells through the PI3K-AKT-mTOR pathway, supporting the importance of heterotypic interactions between breast cancer cells and adipocytes in the tumor microenvironment.
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Affiliation(s)
- Jae-Yeo Park
- Department of Science in Korean Medicine and Comorbidity Research Institute, Kyung Hee University, Seoul, Republic of Korea
| | - Shi-Eun Kang
- Department of Science in Korean Medicine and Comorbidity Research Institute, Kyung Hee University, Seoul, Republic of Korea
| | - Kwang Seok Ahn
- Department of Science in Korean Medicine and Comorbidity Research Institute, Kyung Hee University, Seoul, Republic of Korea.,KHU-KIST department of Converging Science and Technology, Kyung Hee University, Seoul, Republic of Korea
| | - Jae-Young Um
- Department of Science in Korean Medicine and Comorbidity Research Institute, Kyung Hee University, Seoul, Republic of Korea
| | - Woong Mo Yang
- Department of Science in Korean Medicine and Comorbidity Research Institute, Kyung Hee University, Seoul, Republic of Korea
| | - Miyong Yun
- Department of Science in Korean Medicine and Comorbidity Research Institute, Kyung Hee University, Seoul, Republic of Korea.,Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul, Republic of Korea.,Sejong Arctic Research Center, Sejong University, Seoul, Republic of Korea
| | - Seok-Geun Lee
- Department of Science in Korean Medicine and Comorbidity Research Institute, Kyung Hee University, Seoul, Republic of Korea.,KHU-KIST department of Converging Science and Technology, Kyung Hee University, Seoul, Republic of Korea.,Bionanocomposite Research Center, Kyung Hee University, Seoul, Republic of Korea
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9
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Kim DH, Park S, Kim H, Choi YJ, Kim SY, Sung KJ, Sung YH, Choi CM, Yun M, Yi YS, Lee CW, Kim SY, Lee JC, Rho JK. Tumor-derived exosomal miR-619-5p promotes tumor angiogenesis and metastasis through the inhibition of RCAN1.4. Cancer Lett 2020; 475:2-13. [PMID: 32004570 DOI: 10.1016/j.canlet.2020.01.023] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/17/2020] [Accepted: 01/21/2020] [Indexed: 12/21/2022]
Abstract
Tumor-derived exosomes (TEXs) contain enriched miRNAs that act as novel non-invasive biomarkers for cancer diagnosis and play a role in cancer progression. We investigated the exosomal miRNAs that affect cancer progression in non-small cell lung cancer (NSCLC) and identified the specific molecules involved. We identified that specific miRNAs in NSCLC cell-released exosomes can modulate angiogenesis, among which miR-619-5p was the most potent inducer. RCAN1.4 was identified as a target of miR-619-5p and its suppression promoted angiogenesis. Furthermore, the suppression of RCAN1.4 induced cell proliferation and metastasis in NSCLC cells. In patients with NSCLC, the level of RCAN1.4 expression was significantly lower, and that of miR-619-5p significantly higher, in tumor than normal lung tissues. miR-619-5p expression was higher than normal in exosomes isolated from the plasma of NSCLC patients. Finally, hypoxic conditions induced miR-619-5p upload into NSCLC cell-derived exosomes. Our findings indicate that exosomal miR-619-5p promotes the growth and metastasis of NSCLCs by regulating RCAN1.4 and can serve as a diagnostic indicator for these lung cancers.
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Affiliation(s)
- Dong Ha Kim
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea
| | - Sojung Park
- Department of Pulmonology and Critical Care Medicine, Ewha Womans University, College of Medicine, Seoul, 03760, South Korea
| | - HyeongRyul Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea
| | - Yun Jung Choi
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea
| | - Seon Ye Kim
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea
| | - Ki Jung Sung
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea
| | - Young Hoon Sung
- Department of Pulmonology and Critical Care Medicine, Ewha Womans University, College of Medicine, Seoul, 03760, South Korea; Department of Convergence Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea
| | - Chang-Min Choi
- Department of Pulmonology and Critical Care Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea; Department of Oncology, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea
| | - Miyong Yun
- Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul, 05006, South Korea
| | - Young-Su Yi
- Department of Pharmaceutical and Biomedical Engineering, Cheongju University, Cheongju, 28503, South Korea
| | - Chae Won Lee
- Department of Pharmaceutical and Biomedical Engineering, Cheongju University, Cheongju, 28503, South Korea
| | - Sang-Yeob Kim
- Department of Convergence Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea
| | - Jae Cheol Lee
- Department of Oncology, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea.
| | - Jin Kyung Rho
- Department of Convergence Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, 05505, South Korea.
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10
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Yun M, Choi AJ, Woo SR, Noh JK, Sung JY, Lee JW, Eun YG. Inhibition of Carbonyl Reductase 1 Enhances Metastasis of Head and Neck Squamous Cell Carcinoma through β-catenin-Mediated Epithelial-Mesenchymal Transition. J Cancer 2020; 11:533-541. [PMID: 31942176 PMCID: PMC6959035 DOI: 10.7150/jca.34303] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 08/24/2019] [Indexed: 12/30/2022] Open
Abstract
Objective: Human carbonyl reductase 1 (CBR1) plays key roles in the regulation of oxidative stress and tumor progression. However, the detailed mechanism and clinical correlation between CBR1 and tumor progression in head and neck squamous cell carcinoma (HNSCC) is largely unexplored. This study will focus the effects of CBR1 on head and neck cancer progression and explore the possible mechanisms. Materials and Methods:CBR1 mRNA expression was analyzed according to lymph node metastasis (LNM) status in patients with HNSCC from publicly available databases. CBR1 protein levels were measured and compared in HNSCC patient tissues, with or without metastasis, using immunohistochemistry (IHC). The invasive ability of HNSCC with modulated CBR1 expression was assayed using an invasion assay. Expression levels of EMT marker proteins were analyzed using immunoblotting. Results: HNSCC patients with LNM showed lower expression of CBR1 than those without LNM. In addition, IHC in tissues indicated that patients with LNM had relatively lower levels of CBR1 in cancer tissue. Consistently, in vitro invasion assay, we found that CBR1 inhibition using specific short interfering RNA treatment resulted in two- to three-fold increased invasion ability of HNSCC cell lines. Also, we proved that depletion of CBR1 activated marker proteins participating in epithelial-mesenchymal transition (EMT) signaling. CBR1 inhibition increased levels of intracellular reactive oxygen species (ROS) in HNSCC cells leading to upregulation of β-catenin, one of main transcription factors that induce EMT-related genes. Conclusion: Our findings suggested that CBR1 plays an important role in metastasis of HNSCC tumors via regulation of ROS-mediated β-catenin activity, and that CBR1 may be marker for progression of HNSCC to metastasis.
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Affiliation(s)
- Miyong Yun
- Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University
| | - Ae Jin Choi
- Department of Otolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University
| | - Seon Rang Woo
- Department of Otolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University
| | - Joo Kyung Noh
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University
| | - Ji-Youn Sung
- Department of Pathology, School of Medicine, Kyung Hee University
| | - Jung-Woo Lee
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Young-Gyu Eun
- Department of Otolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University
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Yun M, Yi YS. Regulatory roles of ginseng on inflammatory caspases, executioners of inflammasome activation. J Ginseng Res 2019; 44:373-385. [PMID: 32372859 PMCID: PMC7195600 DOI: 10.1016/j.jgr.2019.12.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 12/06/2019] [Accepted: 12/17/2019] [Indexed: 12/12/2022] Open
Abstract
Inflammation is an immune response that protects against pathogens and cellular stress. The hallmark of inflammatory responses is inflammasome activation in response to various stimuli. This subsequently activates downstream effectors, that is, inflammatory caspases such as caspase-1, 4, 5, 11, and 12. Extensive efforts have been made on developing effective and safe anti-inflammatory therapeutics, and ginseng has long been traditionally used as efficacious and safe herbal medicine in treating various inflammatory and inflammation-mediated diseases. Many studies have successfully shown that ginseng plays an anti-inflammatory role by inhibiting inflammasomes and inflammasome-activated inflammatory caspases. This review discusses the regulatory roles of ginseng on inflammatory caspases in inflammatory responses and also suggests new research areas on the anti-inflammatory function of ginseng, which provides a novel insight into the development of ginseng as an effective and safe anti-inflammatory herbal medicine.
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Key Words
- AIM2, Absent in melanoma 2
- ASC, Apoptosis-associated speck-like protein containing CARD
- CARD, C-terminal caspase recruit domain
- COX-2, Cyclooxygenase-2
- Caspase, Cysteine aspartate–specific protease
- DAMP, Danger-associated molecular pattern
- FIIND, Functional-to-find domain
- GSDMD, Gasdermin D
- Ginseng
- Ginsenoside
- HIN, Hematopoietic interferon-inducible nuclear protein
- IL, Interleukin
- Inflammasome
- Inflammation
- Inflammatory caspase
- LPS, Lipopolysaccharide
- LRR, Leucine-rich repeat
- NACHT, Nucleotide-binding and oligomerization domain
- NF-κB, Nuclear factor-kappa B
- NLR, Nucleotide-binding oligomerization domain-like receptor
- NO, Nitric oxide
- PAMP, Pathogen-associated molecular pattern
- PGE2, Prostaglandin E2
- PRR, Pattern-recognition receptor
- PYD, N-terminal pyrin domain
- RGE, Korean Red Ginseng
- ROS, Reactive oxygen species
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Affiliation(s)
- Miyong Yun
- Department of Bioindustry and Bioresource Engineering, Sejong University, Seoul, Republic of Korea
| | - Young-Su Yi
- Department of Life Science, Kyonggi University, Suwon, Republic of Korea
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12
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Lee D, Hokinson D, Park S, Elvira R, Kusuma F, Lee JM, Yun M, Lee SG, Han J. ER Stress Induces Cell Cycle Arrest at the G2/M Phase Through eIF2α Phosphorylation and GADD45α. Int J Mol Sci 2019; 20:E6309. [PMID: 31847234 PMCID: PMC6940793 DOI: 10.3390/ijms20246309] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/06/2019] [Accepted: 12/11/2019] [Indexed: 01/04/2023] Open
Abstract
Endoplasmic reticulum (ER) stress is known to influence various cellular functions, including cell cycle progression. Although it is well known how ER stress inhibits cell cycle progression at the G1 phase, the molecular mechanism underlying how ER stress induces G2/M cell cycle arrest remains largely unknown. In this study, we found that ER stress and subsequent induction of the UPR led to cell cycle arrest at the G2/M phase by reducing the amount of cyclin B1. Pharmacological inhibition of the IRE1α or ATF6α signaling did not affect ER stress-induced cell cycle arrest at the G2/M phase. However, when the alpha subunit of eukaryotic translation initiation factor 2 (eIF2α) phosphorylation was genetically abrogated, the cell cycle progressed without arresting at the G2/M phase after ER stress. GEO database analysis showed that growth arrest and DNA-damage-inducible protein α (Gadd45α) were induced in an eIF2a phosphorylation-dependent manner, which was confirmed in this study. Knockdown of GADD45α abrogated cell cycle arrest at the G2/M phase upon ER stress. Finally, the cell death caused by ER stress significantly reduced when GADD45α expression was knocked down. In conclusion, GADD45α is a key mediator of ER stress-induced growth arrest via regulation of the G2/M transition and cell death through the eIF2α signaling pathway.
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Affiliation(s)
- Duckgue Lee
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan-si, Chungcheongnam-do 31151, Korea; (D.L.); (D.H.); (S.P.); (R.E.); (F.K.); (J.-M.L.)
| | - Daniel Hokinson
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan-si, Chungcheongnam-do 31151, Korea; (D.L.); (D.H.); (S.P.); (R.E.); (F.K.); (J.-M.L.)
| | - Soyoung Park
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan-si, Chungcheongnam-do 31151, Korea; (D.L.); (D.H.); (S.P.); (R.E.); (F.K.); (J.-M.L.)
| | - Rosalie Elvira
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan-si, Chungcheongnam-do 31151, Korea; (D.L.); (D.H.); (S.P.); (R.E.); (F.K.); (J.-M.L.)
| | - Fedho Kusuma
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan-si, Chungcheongnam-do 31151, Korea; (D.L.); (D.H.); (S.P.); (R.E.); (F.K.); (J.-M.L.)
| | - Ji-Min Lee
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan-si, Chungcheongnam-do 31151, Korea; (D.L.); (D.H.); (S.P.); (R.E.); (F.K.); (J.-M.L.)
| | - Miyong Yun
- Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul 02447, Korea;
| | - Seok-Geun Lee
- KHU-KIST Department of Converging Science & Technology, Department of Science in Korean Medicine, and Bionanocomposite Research Center, Kyung Hee Univerisity, 26 Kyungheedae-ro, Seoul 02447, Korea;
| | - Jaeseok Han
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan-si, Chungcheongnam-do 31151, Korea; (D.L.); (D.H.); (S.P.); (R.E.); (F.K.); (J.-M.L.)
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13
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Kim EO, Kang SE, Choi M, Rhee KJ, Yun M. CCR4‑NOT transcription complex subunit 2 regulates TRAIL sensitivity in non‑small‑cell lung cancer cells via the STAT3 pathway. Int J Mol Med 2019; 45:324-332. [PMID: 31894259 PMCID: PMC6984779 DOI: 10.3892/ijmm.2019.4425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 10/30/2019] [Indexed: 12/02/2022] Open
Abstract
TRAIL is an attractive candidate for anticancer therapy in a variety of tumors since it targets only tumors and not normal tissue. However, a remaining major hurdle is that the majority of tumors exhibit a resistance mechanism against the effects of TRAIL via the induction of anti-apoptotic signaling pathways. In this study, we aimed to evaluate whether the modulation of CCR4-NOT transcription complex subunit 2 (CNOT2) function can promote TRAIL sensitivity in non-small-cell lung cancer (NSCLC) cells. CNOT2 depletion partially decreased colony numbers and the proliferation of NSCLC cells. When combined with TRAIL, the suppression of CNOT2 expression markedly decreased the survival rate and increased apoptosis, as compared with TRAIL treatment alone in TRAIL-resistant NSCLC cells. Of note, CNOT2 overexpression in TRAIL-sensitive H460 cells enhanced the survival rate and decreased apoptosis when compared with TRAIL treatment alone. Gene expression analysis indicated that genes involved in the signal transducer and activator of transcription 3 (STAT3) signaling pathway were dominantly altered in the CNOT2-depleted A549 cells. Under this condition, Src homology region 2 domain containing phosphatase-1 (SHP1) was significantly upregulated and subsequently increased apoptosis. On the whole, the findings of this study demonstrate that CNOT2 participates in TRAIL sensitivity in NSCLC cells via the regulation of the STAT3 signaling pathway, and suggest that combination therapy with CNOT2 depletion and TRAIL treatment may prove to be a useful strategy for overcoming TRAIL resistance in NSCLC.
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Affiliation(s)
- Eun-Ok Kim
- Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul 05006, Republic of Korea
| | - Shi-Eun Kang
- Korean Medicine Clinical Trail Center, Kyung Hee University Korean Medicine Hospital, Seoul 02453, Republic of Korea
| | - Minji Choi
- Medical Science Research Institute, Kyung Hee University Medical Center, Seoul 02453, Republic of Korea
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon‑do 26493, Republic of Korea
| | - Miyong Yun
- Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul 05006, Republic of Korea
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14
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Yoo HS, Lee EC, Chung SJ, Lee YH, Lee SG, Yun M, Lee PH, Sohn YH, Seong JK, Ye BS. Effects of Alzheimer's disease and Lewy body disease on subcortical atrophy. Eur J Neurol 2019; 27:318-326. [PMID: 31487756 DOI: 10.1111/ene.14080] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 08/21/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND PURPOSE Subcortical structures are affected by neurodegeneration in Alzheimer's disease (AD) and Lewy body disease (LBD). Although the co-occurrence of AD and LBD pathologies and their possible interaction have been reported, the effect of AD and LBD on subcortical structures remains unknown. The effects of AD and LBD on subcortical atrophy and their relationship with cognitive dysfunction were investigated. METHODS The cross-sectional study recruited 42 patients with pure AD related cognitive impairment (ADCI), 30 patients with pure LBD related cognitive impairment (LBCI), 58 patients with mixed ADCI and LBCI, and 29 normal subjects. A general linear model was used to compare subcortical volume and shape amongst the groups, to investigate the independent and interaction effects of ADCI and LBCI on subcortical shape and volume, and to analyze the relationship between subcortical volume and cognitive dysfunction in each group. RESULTS Alzheimer's disease related cognitive impairment and LBCI were independently associated with subcortical atrophies in the hippocampus and amygdala and in the hippocampus and putamen respectively, but their interaction effect was not significant. Compared to the control group, the pure LBCI group exhibited additional local atrophies in the amygdala, caudate and thalamus. Subcortical atrophies correlated differently with cognitive dysfunction according to the underlying causes of cognitive dysfunction. CONCLUSIONS The patterns of subcortical atrophies and their correlation with cognitive dysfunction differ according to the underlying AD, LBD or concomitant AD and LBD.
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Affiliation(s)
- H S Yoo
- Department of Neurology, Yonsei University College of Medicine, Seoul, South Korea
| | - E C Lee
- Department of Bio-convergence Engineering, Korea University, Seoul, South Korea
| | - S J Chung
- Department of Neurology, Yonsei University College of Medicine, Seoul, South Korea
| | - Y H Lee
- Department of Neurology, Yonsei University College of Medicine, Seoul, South Korea
| | - S G Lee
- Department of Radiology, Yonsei University College of Medicine, Seoul, South Korea
| | - M Yun
- Department of Nuclear Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - P H Lee
- Department of Neurology, Yonsei University College of Medicine, Seoul, South Korea
| | - Y H Sohn
- Department of Neurology, Yonsei University College of Medicine, Seoul, South Korea
| | - J-K Seong
- Department of Bio-convergence Engineering, Korea University, Seoul, South Korea.,School of Biomedical Engineering, Korea University, Seoul, South Korea
| | - B S Ye
- Department of Neurology, Yonsei University College of Medicine, Seoul, South Korea
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15
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Jung DB, Yun M, Kim EO, Kim J, Kim B, Jung JH, Wang E, Mukopadhyay D, Hammond E, Dredge K, Shridhar V, Kim SH. Correction: The heparan sulfate mimetic PG545 interferes with Wnt/β-catenin signaling and significantly suppresses pancreatic tumorigenesis alone and in combination with gemcitabine. Oncotarget 2019; 10:5669. [PMID: 31608142 PMCID: PMC6771454 DOI: 10.18632/oncotarget.27216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- Deok-Beom Jung
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea.,These authors contributed equally to this work
| | - Miyong Yun
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea.,These authors contributed equally to this work
| | - Eun-Ok Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea.,Korean Medicine Clinical Trial Center, Kyung Hee University, Seoul, South Korea
| | - Jaekwang Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Bonglee Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Ji Hoon Jung
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Enfeng Wang
- Department of Biochemistry and Molecular Biology, MN, USA
| | | | - Edward Hammond
- Progen Pharmaceuticals Ltd, Brisbane, Queensland, Australia
| | - Keith Dredge
- Progen Pharmaceuticals Ltd, Brisbane, Queensland, Australia
| | - Viji Shridhar
- Experimental Pathology, Mayo Clinic College of Medicine, Rochester, MN, USA.,These authors are senior authors
| | - Sung-Hoon Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea.,These authors are senior authors
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16
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Hwang S, Jo M, Hong JE, Park CO, Lee CG, Yun M, Rhee KJ. Zerumbone Suppresses Enterotoxigenic Bacteroides fragilis Infection-Induced Colonic Inflammation through Inhibition of NF-κΒ. Int J Mol Sci 2019; 20:ijms20184560. [PMID: 31540059 PMCID: PMC6770904 DOI: 10.3390/ijms20184560] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/08/2019] [Accepted: 09/10/2019] [Indexed: 02/06/2023] Open
Abstract
Enterotoxigenic Bacteroides fragilis (ETBF) is human intestinal commensal bacterium and a potent initiator of colitis through secretion of the metalloprotease Bacteroides fragilis toxin (BFT). BFT induces cleavage of E-cadherin in colon cells, which subsequently leads to NF-κB activation. Zerumbone is a key component of the Zingiber zerumbet (L.) Smith plant and can exhibit anti-bacterial and anti-inflammatory effects. However, whether zerumbone has anti-inflammatory effects in ETBF-induced colitis remains unknown. The aim of this study was to determine the anti-inflammatory effect of orally administered zerumbone in a murine model of ETBF infection. Wild-type C57BL/6 mice were infected with ETBF and orally administered zerumbone (30 or 60 mg/kg) once a day for 7 days. Treatment of ETBF-infected mice with zerumbone prevented weight loss and splenomegaly and reduced colonic inflammation with decreased macrophage infiltration. Zerumbone treatment significantly decreased expression of IL-17A, TNF-α, KC, and inducible nitric oxide synthase (iNOS) in colonic tissues of ETBF-infected mice. In addition, serum levels of KC and nitrite was also diminished. Zerumbone-treated ETBF-infected mice also showed decreased NF-κB signaling in the colon. HT29/C1 colonic epithelial cells treated with zerumbone suppressed BFT-induced NF-κB signaling and IL-8 secretion. However, BFT-mediated E-cadherin cleavage was unaffected. Furthermore, zerumbone did not affect ETBF colonization in mice. In conclusion, zerumbone decreased ETBF-induced colitis through inhibition of NF-κB signaling.
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Affiliation(s)
- Soonjae Hwang
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Korea.
- Cell Therapy and Tissue Engineering Center, Yonsei University Wonju College of Medicine, Wonju, Gangwon-do 26426, Korea.
| | - Minjeong Jo
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Korea.
| | - Ju Eun Hong
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Korea.
| | - Chan Oh Park
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Korea.
| | - Chang Gun Lee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Korea.
| | - Miyong Yun
- Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul 05006, Korea.
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, College of Health Sciences, Yonsei University at Wonju, Wonju, Gangwon-do 26493, Korea.
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17
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Oh JH, Yun M, Park D, Ha IJ, Kim CK, Kim DW, Kim EO, Lee SG. Papaver nudicaule (Iceland poppy) alleviates lipopolysaccharide-induced inflammation through inactivating NF-κB and STAT3. Altern Ther Health Med 2019; 19:90. [PMID: 31036001 PMCID: PMC6489246 DOI: 10.1186/s12906-019-2497-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 04/08/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND Papaver nudicaule belongs to the Papaveraceae family, which is planted as an annual herbaceous species generally for ornamental purpose. Papaver rhoeas in the same family has been reported to have various pharmacological activities such as antioxidant and analgesic effects. In contrast, little is known about the pharmacological activity of Papaver nudicaule. In this study, the anti-inflammatory activity of Papaver nudicaule extracts and the action mechanisms were investigated in RAW264.7 macrophage cells. METHODS To investigate the anti-inflammatory activity of five cultivars of Papaver nudicaule with different flower color, samples were collected from their aerial parts at two growth stages (60 and 90 days) and their ethanol extracts were evaluated in the lipopolysaccharide (LPS)-treated RAW264.7 cells by measuring nitric oxide (NO) and prostaglandin E2 (PGE2) levels. Interleukin 1-beta (IL-1β), Interleukin-6 (IL-6) and Tumor necrosis factor alpha (TNF-α) production were also analyzed by RT-PCR and multiplex assays. Nuclear Factor-kappa-light-chain-enhancer of activated B cells (NF-κB) and Signal transducer and activator of transcription 3 (STAT3) signaling pathways were examined using western blotting and luciferase reporter assays to reveal the action mechanism of Papaver nudicaule extracts in their anti-inflammatory activity. RESULTS All of the Papaver nudicaule extracts were effective in reducing the LPS-induced NO, which is an important inflammatory mediator, and the extract of Papaver nudicaule with white flower collected at 90 days (NW90) was selected for further experiments because of the best effect on reducing the LPS-induced NO as well as no toxicity. NW90 lowered the LPS-induced PGE2 level and decreased the LPS-induced Nitric oxide synthase 2 (NOS2) and Cyclooxygenase 2 (COX2). In addition, NW90 reduced the LPS-induced inflammatory cytokines, IL-1β and IL-6. Furthermore, NW90 inhibited the LPS-induced activation of NF-κB and STAT3. CONCLUSIONS These results indicate that NW90 may restrain inflammation by inhibiting NF-κB and STAT3, suggesting the potential therapeutic properties of Papaver nudicaule against inflammatory disease.
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18
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Han YG, Yun M, Choi M, Lee SG, Kim H. TRAIP regulates Histone H2B monoubiquitination in DNA damage response pathways. Oncol Rep 2019; 41:3305-3312. [PMID: 30942468 DOI: 10.3892/or.2019.7092] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 03/20/2019] [Indexed: 11/05/2022] Open
Abstract
Histone H2B monoubiquitination has been shown to play critical roles in diverse cellular processes including DNA damage response. Although recent data indicate that H2B monoubiquitination is strongly connected with tumor progression and regulation, the implications of this modification in lung adenocarcinoma are relatively unknown. In the present study, we demonstrated the clinical implication of H2B monoubiquitination and the potential role of tumor necrosis factor receptor‑associated factor‑interacting protein (TRAIP) in regulating its modification in lung adenocarcinoma. Immunohistochemical analysis showed that H2B monoubiquitination was significantly downregulated in 68 human lung adenocarcinoma patient samples compared to their normal adjacent tissues. Depletion of TRAIP by specific siRNA treatment markedly decreased ionizing radiation (IR)‑induced H2B monoubiquitination. In addition, deletion mutants without RING domain or C‑terminus of TRAIP diminished the ability to induce H2B monoubiquitination at lysine 120. Notably, the nuclear expression of TRAIP was positively related with H2B monoubiquitination levels in patients with lung adenocarcinoma. Furthermore, statistical analysis indicated that low levels of both TRAIP and H2B monoubiquitination, not each alone, in patients with lung adenocarcinoma were strongly correlated with poor survival. Taken together, these results suggest that TRAIP is a novel regulator of H2B monoubiquitination in DNA damage response and cancer development in lung adenocarcinoma.
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Affiliation(s)
- Ye Gi Han
- Department of Biological Sciences, Sungkyunkwan University, Suwon 440‑746, Republic of Korea
| | - Miyong Yun
- Department of Science in Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Minji Choi
- Department of Science in Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Seok-Geun Lee
- Department of Science in Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hongtae Kim
- Center for Genomic Integrity Institute for Basic Science (IBS), Ulsan National Institute of Science and Technology, Ulsan 689‑798, Republic of Korea
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19
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Han I, Yun M, Kim EO, Kim B, Jung MH, Kim SH. Retraction Note: Umbilical cord tissue-derived mesenchymal stem cells induce apoptosis in PC-3 prostate cancer cells through activation of JNK and downregulation of PI3K/AKT signaling. Stem Cell Res Ther 2018; 9:354. [PMID: 30587247 PMCID: PMC6307181 DOI: 10.1186/s13287-018-1113-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 12/18/2018] [Accepted: 12/18/2018] [Indexed: 11/17/2022] Open
Affiliation(s)
- Ihn Han
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
| | - Miyong Yun
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
| | - Eun-Ok Kim
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
| | - Bonglee Kim
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
| | - Min-Hyung Jung
- School of Medicine, Kyung Hee University, Seoul, 130-701, Republic of Korea
| | - Sung-Hoon Kim
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea.
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20
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Kim DH, Choi YJ, Sung KJ, Yoo SA, Sung YH, Kim JK, Choi CM, Yun M, Lee EY, Jin YS, Cook S, Rho JK, Lee JC. Efficacy of nano-particulated, water-soluble erlotinib against intracranial metastases of EGFR-mutant lung cancer. Mol Oncol 2018; 12:2182-2190. [PMID: 30350450 PMCID: PMC6275278 DOI: 10.1002/1878-0261.12394] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 08/20/2018] [Accepted: 10/04/2018] [Indexed: 11/15/2022] Open
Abstract
Central nervous system (CNS) metastasis is one of the serious complications of epidermal growth factor receptor (EGFR)‐mutant lung cancer, which arises due to poor penetration of the brain–blood barrier by EGFR‐tyrosine kinase inhibitors (EGFR‐TKIs). Although osimertinib, a third‐generation EGFR‐TKI, has efficacy against CNS metastases, further treatment modalities are still needed as some of these lesions do not respond to osimertinib, or undergo progression after an initial response to this drug if radiotherapy has already been conducted. Here, we investigated the efficacy of water‐soluble erlotinib (NUFS‐sErt) against these metastases. This agent was synthesized using a nano‐particulation platform technology utilizing fat and supercritical fluid (NUFS™) to resolve the low solubility problem that typically prevents the creation of injectable forms of EGFR‐TKIs. The average NUFS‐sErt particle size was 236.4 nm, and it showed time‐dependent dissolution in culture media. The effects of NUFS‐sErt were similar to those of conventional erlotinib in terms of inhibiting the proliferation of EGFR‐mutant lung cancer cells and suppressing EGFR signaling. In an intraperitoneal xenograft model of HCC827 cells, intraperitoneal administration of NUFS‐sErt produced a dose‐dependent inhibition of tumor growth and enhanced survival rate. Notably, the injection of NUFS‐sErt into the brain ventricle caused significant tumor growth inhibition in an intracranial xenograft model. Hence, our current findings indicate that NUFS‐sErt is a novel, water‐soluble form of erlotinib that can be administered using intraventricular or intrathecal injections. The target cases would be patients with a progressive CNS metastasis and no other therapeutic options. This drug could also be given intravenously to patients with swallowing difficulties or an inability to ingest due to a medical condition.
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Affiliation(s)
- Dong Ha Kim
- Department of Pulmonology and Critical Care Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea.,Asan Institute for Life Sciences, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea
| | - Yun Jung Choi
- Department of Pulmonology and Critical Care Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea.,Asan Institute for Life Sciences, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea
| | - Ki Jung Sung
- Department of Pulmonology and Critical Care Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea.,Asan Institute for Life Sciences, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea
| | - Seon-A Yoo
- Department of Pulmonology and Critical Care Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea.,Asan Institute for Life Sciences, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea
| | - Young Hoon Sung
- Asan Institute for Life Sciences, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea.,Department of Convergence Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea
| | - Jeong Kon Kim
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea
| | - Chang-Min Choi
- Department of Pulmonology and Critical Care Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea.,Department of Oncology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea
| | - Miyong Yun
- Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul, South Korea
| | | | | | - Seungho Cook
- Biomedical Sciences, College of Medicine, University of Ulsan, Seoul, South Korea
| | - Jin Kyung Rho
- Department of Convergence Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea
| | - Jae Cheol Lee
- Department of Oncology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, South Korea
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21
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Kim N, Cho H, Yun M, Park K, Lee C. Early Prediction of Response to Radiation Therapy Using Inter-Fractional 18F-FDG PET/CT in Esophageal Cancer. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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22
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Yun M, Choi AJ, Lee YC, Kong M, Sung JY, Kim SS, Eun YG. Carbonyl reductase 1 is a new target to improve the effect of radiotherapy on head and neck squamous cell carcinoma. J Exp Clin Cancer Res 2018; 37:264. [PMID: 30376862 PMCID: PMC6208116 DOI: 10.1186/s13046-018-0942-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 10/22/2018] [Indexed: 12/20/2022]
Abstract
Background Human carbonyl reductase 1 (CBR1) plays major roles in protecting cells against cellular damage resulting from oxidative stress. Although CBR1-mediated detoxification of oxidative materials increased by stressful conditions including hypoxia, neuronal degenerative disorders, and other circumstances generating reactive oxide is well documented, the role of CBR1 under ionising radiation (IR) is still unclear. Methods The formalin-fixed and paraffin-embedded tissues of 85 patients with head and neck squamous cell carcinoma (HNSCC) were used to determine if CBR1 expression effects on survival of patients with treatment of radiotherapy. Subsequently colony formation assays and xenograft tumor mouse model was used to verify the relationship between CBR1 expression and radiosensitivity in HNSCC cells. Publicly-available data from The Cancer Genome Atlas (TCGA) was analysed to determine if CBR1 expression affects the survival of patients with HNSCC. To verify CBR1-mediated molecular signalling pathways, cell survival, DNA damage/repair, reactive oxygen species (ROS), cell cycle distribution and mitotic catastrophe in HNSCC cells with modulated CBR1 expression by knockdown or overexpression were measured using by colony formation assays, flow cytometry, qRT-PCR and western blot analysis. Results HNSCC patients with low CBR1 had a significantly higher survival rate than the high CBR1 expression (84.2% vs. 57.8%, p = 0.0167). Furthermore, HNSCC patients with low CBR1 expression showed a good prognosis for IR compared to patients with highly expressed CBR1. Also, we found that IR upregulated CBR1 mRNA via Nrf2 activation in HNSCC cells and patients. In vitro analysis, we found that CBR1-specific siRNA or inhibitor significantly enhanced radiosensitivity after IR, while CBR1 overexpression decreased. CBR1 inhibition by siRNA or inhibitor treatment accumulated cellular ROS leading to aberrant DNA damage repair and an increase of mitotic catastrophe. Moreover, the combination of CBR1 depletion with IR dramatically inhibited primary tumour growth in a xenograft tumor mouse model. Conclusion Our findings indicate that CBR1 has a key role in DNA damage response through regulation of IR-mediated ROS generation. Consistently, CBR1 expression is highly correlated with patient survival after and susceptibility to radiation therapy. Therefore, CBR1 inhibition with IR might be a potent therapeutic strategy for HNSCC treatment. Electronic supplementary material The online version of this article (10.1186/s13046-018-0942-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Miyong Yun
- Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul, Republic of Korea
| | - Ae Jin Choi
- Department of Otolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University, #1, Hoegi-dong, Dongdaemun-gu, Seoul, 02774, Republic of Korea
| | - Young Chan Lee
- Department of Otolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University, #1, Hoegi-dong, Dongdaemun-gu, Seoul, 02774, Republic of Korea
| | - Munkyoo Kong
- Department of Radiation Oncology, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Ji-Youn Sung
- Department of Pathology, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Sung Soo Kim
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Young-Gyu Eun
- Department of Otolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University, #1, Hoegi-dong, Dongdaemun-gu, Seoul, 02774, Republic of Korea.
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23
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Kwiecinski J, Dey D, Lee SE, Otaki Y, Doris MK, Eisenberg E, Yun M, Cho A, Jansen MA, Dweck MR, Slomka PJ, Newby DE, Chang HJ, Berman DS. P6207Pericoronary adipose tissue density and low attenuation plaque are associated with 18F-sodium fluoride coronary uptake in vulnerable plaque patients. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- J Kwiecinski
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - D Dey
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - S E Lee
- Yonsei University College of Medicine, Severance Cardiovascular Hospital, Seoul, Korea Republic of
| | - Y Otaki
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - M K Doris
- University of Edinburgh, Centre for Cardiovascular Sciences, Edinburgh, United Kingdom
| | - E Eisenberg
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - M Yun
- Yonsei University College of Medicine, Severance Cardiovascular Hospital, Seoul, Korea Republic of
| | - A Cho
- Yonsei University College of Medicine, Severance Cardiovascular Hospital, Seoul, Korea Republic of
| | - M A Jansen
- University of Edinburgh, Centre for Cardiovascular Sciences, Edinburgh, United Kingdom
| | - M R Dweck
- University of Edinburgh, Centre for Cardiovascular Sciences, Edinburgh, United Kingdom
| | - P J Slomka
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - D E Newby
- University of Edinburgh, Centre for Cardiovascular Sciences, Edinburgh, United Kingdom
| | - H J Chang
- Yonsei University College of Medicine, Severance Cardiovascular Hospital, Seoul, Korea Republic of
| | - D S Berman
- Cedars-Sinai Medical Center, Los Angeles, United States of America
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24
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Chiang SC, Choi YJ, Kang SE, Yun M, Lee BJ. Herbal Medicines Showing Synergistic Effects with Tumor Necrosis Factor-Related Apoptosis-Inducing Ligand (TRAIL) against A549 TRAIL-resistant Lung Cancer Cells: A Screening Study. Pharmacogn Mag 2018; 14:145-148. [PMID: 29720822 PMCID: PMC5909306 DOI: 10.4103/pm.pm_270_17] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Revised: 08/16/2017] [Indexed: 12/03/2022] Open
Abstract
Background: Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a cytokine that activates apoptosis through death receptors on the cell surface and is regarded as a potential anticancer agent. However, many cancer cells are resistant to TRAIL-induced apoptosis. Objective: The aim is to identify the herbal medicines that could help overcome resistance in TRAIL-resistant lung cancer cells. Materials and Methods; TRAIL-resistant A549 cells and 13 herbal medicines with known apoptosis-related anticancer effects were used in this study: Clematidis Radix, Corydalis Tuber Rhizoma, Paeoniae Radix Rubra, Corni Fructus, Curcumae longae Rhizoma (CLR), Moutan Cortex, Salviae miltiorrhizae Radix, Phellodendri Cortex, Farfarae Flos, Paeoniae Radix Alba, Angelicae gigantis Radix, Coptidis Rhizoma (CR), and Taraxaci Herba. Cytotoxic effects were investigated after a 48-h incubation, using an 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay, to identify the herbal medicines with the most potent synergistic effects with TRAIL. Results: The majority of the 13 medicines exhibited concentration-dependent cytotoxicity against A549 cells. Among them, CR and CLR showed the most potent cytotoxic effects, based on the IC50. We then investigated the use of these two medicines in combination with TRAIL and identified synergistic cytotoxic effects against TRAIL-resistant A549 cells. Conclusion: Synergistic cytotoxic effects of the combination of TRAIL and herbal medicines, in particular, CR and CLR, were confirmed in A549 cells. Therefore, CR and CLR showed potential to be used as candidates to overcome TRAIL resistance. Future studies to identify their underlying mechanism of action are required. SUMMARY Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is an attractive anticancer agent which can induce apoptosis in tumor cells without causing cytotoxicity to normal cells However, resistance to TRAIL is often observed in some tumor cells, including nonsmall cell lung cancers, which may limit its cytotoxic efficacy in cancer treatment The combination treatment of TRAIL and herbal medicines, particularly Coptidis Rhizoma (CR) and Curcumae longae Rhizoma (CLR), can induce the synergistic cytotoxic effects against TRAIL-resistant A549 cells, indicating that TRAIL resistance was reduced by combination therapy.
Abbreviations used: TRAIL: Tumor necrosis factor-related apoptosis-inducing ligand; CLR: Curcumae longae Rhizoma; CR: Coptidis Rhizoma; NSCLC: non-small cell lung cancer.
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Affiliation(s)
- Shuen Cheng Chiang
- Department of Clinical Korean Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - Yeon-Jung Choi
- Department of Clinical Korean Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea
| | - Shi-Eun Kang
- Department of Science in Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Miyong Yun
- Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul, Republic of Korea
| | - Beom-Joon Lee
- Department of Clinical Korean Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea.,Department of Internal Medicine (Pulmonary and Allergy System), Korean Medicine Hospital, Seoul, Republic of Korea
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25
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Kang S, Kim EO, Kim SH, Lee JH, Ahn KS, Yun M, Lee SG. Morusin induces apoptosis by regulating expression of Bax and Survivin in human breast cancer cells. Oncol Lett 2017; 13:4558-4562. [PMID: 28599457 DOI: 10.3892/ol.2017.6006] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 02/17/2017] [Indexed: 01/07/2023] Open
Abstract
Morusin which has been isolated from the root bark of Morus alba L. (Moraceae) has previously demonstrated anticancer activity in various types of cancer cells such as hepatocellular carcinoma, glioma and prostate cancer. However, the effect of morusin on breast cancer cells remains unclear. In the present study, the potential of morusin as an anti-cancer agent in breast cancer was investigated. The results of the present study revealed that the treatment of morusin induced cell death in various human breast cancer cell lines, but exhibited little effect on normal human breast epithelial cells. In Annexin V-propidium iodide double staining assays, morusin significantly increased apoptosis in a dose-dependent manner in human breast cancer cells. The apoptosis marker proteins cleaved caspase 3 and 9 were consistently upregulated following treatment of cells with morusin in a time- and dose-dependent manner. Furthermore, morusin was demonstrated to modulate the expression of the anti-apoptotic protein Survivin and pro-apoptotic protein B-cell lymphoma 2-associated-x protein (Bax) in human breast cancer cells. These results indicate that morusin induces apoptosis by suppressing Survivin and inducing Bax proteins, suggesting that morusin is a potentially effective therapeutic agent for the treatment of patients with breast cancer.
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Affiliation(s)
- Sukmin Kang
- Department of Cancer Preventive Material Development, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Eun-Ok Kim
- Department of Science in Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea.,Korean Medicine Clinical Trial Center, Kyung Hee University Korean Medicine Hospital, Seoul 05006, Republic of Korea
| | - Sung-Hoon Kim
- Department of Cancer Preventive Material Development, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea.,Department of Science in Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jun-Hee Lee
- Department of Sasang Constitutional Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea.,Korean Medicine Clinical Trial Center, Kyung Hee University Korean Medicine Hospital, Seoul 05006, Republic of Korea
| | - Kwang Seok Ahn
- Department of Cancer Preventive Material Development, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea.,Department of Science in Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Miyong Yun
- Department of Science in Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea.,Department of Bioindustry and Bioresource Engineering, College of Life Sciences, Sejong University, Seoul 05006, Republic of Korea
| | - Seok-Geun Lee
- Department of Cancer Preventive Material Development, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea.,Department of Science in Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea.,Korean Medicine Clinical Trial Center, Kyung Hee University Korean Medicine Hospital, Seoul 05006, Republic of Korea.,KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Republic of Korea
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26
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Yun M, Monaghan DJ, Yang X, Jang J, Edmonds DV, Hunt JD, Cook R, Thomas PM. An Experimental Investigation of the Effect of Strip Thickness, Metallostatic Head and Tip Setback on the Productivity of a Twin-roll Caster. ACTA ACUST UNITED AC 2016. [DOI: 10.1080/09534962.1991.11819065] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- M. Yun
- Department of Materials, University of Oxford, Parks Road, Oxford 0X1 3PH, UK
| | - D. J. Monaghan
- Department of Materials, University of Oxford, Parks Road, Oxford 0X1 3PH, UK
| | - X. Yang
- Department of Materials, University of Oxford, Parks Road, Oxford 0X1 3PH, UK
| | - J. Jang
- Department of Materials, University of Oxford, Parks Road, Oxford 0X1 3PH, UK
| | - D. V. Edmonds
- Department of Materials, University of Oxford, Parks Road, Oxford 0X1 3PH, UK
| | - J. D. Hunt
- Department of Materials, University of Oxford, Parks Road, Oxford 0X1 3PH, UK
| | - R. Cook
- Davy McKee (Poole), Limited, Wallisdown Road, Poole BH12 5AG, UK
| | - P. M. Thomas
- Davy McKee (Poole), Limited, Wallisdown Road, Poole BH12 5AG, UK
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27
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Park J, Lee N, Kim J, Park H, Heo S, Beom S, Kim H, Rha S, Chung H, Yun M, Cho A, Jung M. The prognostic role and association of 18F-FDG PET CT and HER2 expression in gastric cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw371.65] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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28
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Park SY, Choi M, Park D, Jeong M, Ahn KS, Lee J, Fisher PB, Yun M, Lee SG. AEG-1 promotes mesenchymal transition through the activation of Rho GTPases in human glioblastoma cells. Oncol Rep 2016; 36:2641-2646. [DOI: 10.3892/or.2016.5106] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 05/31/2016] [Indexed: 11/06/2022] Open
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29
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Yoon H, Kim K, Lee J, Roh Y, Yun M, Cho B, Lee C, Keum K. EP-1073: The usefulness of 18F-FDG PET and PET-based considerations in locally advanced nasopharyngeal cancer. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32323-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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30
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Kim EO, Kang SE, Im CR, Lee JH, Ahn KS, Yang WM, Um JY, Lee SG, Yun M. Tanshinone IIA induces TRAIL sensitization of human lung cancer cells through selective ER stress induction. Int J Oncol 2016; 48:2205-12. [PMID: 26983803 DOI: 10.3892/ijo.2016.3441] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 02/18/2016] [Indexed: 11/06/2022] Open
Abstract
Although tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a promised anticancer medicine targeting only the tumor, most cancers show resistance to TRAIL-induced apoptosis. For this reason, new therapeutic strategies to overcome the TRAIL resistance are required for more effective tumor treatment. In the present study, potential of tanshinone IIA as a TRAIL sensitizer was evaluated in human non-small cell lung cancer (NSCLC) cells. NSCLC cells showed resistance to TRAIL-mediated cell death, but combination treatment of Tanshinone IIA and TRAIL synergistically decreased cell viability and increased apoptosis in TRAIL-resistant NSCLC cells. Tanshinone IIA greatly induced death receptor 5 (DR5), but not death receptor 4 (DR4). Furthermore, DR5 knockdown attenuated the combination treatment of tanshinone IIA with TRAIL-mediated cell death in human NSCLC cells. Tanshinone IIA also increased CHOP and activated the PERK-ATF4 pathway suggesting that tanshinone IIA increased DR5 and CHOP by activating the PERK-ATF4 pathway. Tanshinone IIA also downregulated phosphorylation of STAT3 and expression of survivin. Taken together, these results indicate that tanshinone IIA increases TRAIL-induced cell death via upregulating DR5 and downregulating survivin mediated by, respectively, selective activation of PERK/ATF4 and inhibition of STAT3, suggesting combinatorial intervention of tanshinone IIA and TRAIL as a new therapeutic strategy for human NSCLC.
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Affiliation(s)
- Eun-Ok Kim
- Korean Medicine Clinical Trial Center, Kyung Hee University Korean Medicine Hospital, Seoul 02447, Republic of Korea
| | - Shi Eun Kang
- Department of Science in Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Chang Rak Im
- Department of Applied Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jun-Hee Lee
- Korean Medicine Clinical Trial Center, Kyung Hee University Korean Medicine Hospital, Seoul 02447, Republic of Korea
| | - Kwang Seok Ahn
- Department of Science in Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Woong Mo Yang
- Department of Science in Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jae-Young Um
- Department of Science in Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Seok-Geun Lee
- Korean Medicine Clinical Trial Center, Kyung Hee University Korean Medicine Hospital, Seoul 02447, Republic of Korea
| | - Miyong Yun
- Department of Science in Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
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31
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Park D, Ha IJ, Park SY, Choi M, Lim SL, Kim SH, Lee JH, Ahn KS, Yun M, Lee SG. Morusin Induces TRAIL Sensitization by Regulating EGFR and DR5 in Human Glioblastoma Cells. J Nat Prod 2016; 79:317-323. [PMID: 26829656 DOI: 10.1021/acs.jnatprod.5b00919] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Glioblastoma is one of the most malignant primary tumors, and the prognosis for glioblastoma patients remains poor. Tumor-necrosis-factor-related apoptosis-inducing ligand (TRAIL) is considered a promising anticancer agent due to its remarkable ability to selectively kill tumor cells. However, since many cancers are resistant to TRAIL, strategies to overcome resistance are required for the successful use of TRAIL in the clinic. In the present study, the potential of morusin as a TRAIL sensitizer in human glioblastoma cells was evaluated. Treatment with TRAIL or morusin alone showed weak cytotoxicity in human glioblastoma cells. However, combination treatment of TRAIL with morusin synergistically decreased cell viability and increased apoptosis compared with single treatment. Morusin induced expression of death receptor 5 (DR5), but not DR4 or decoy receptors (DcR1 and DcR2). Furthermore, morusin significantly decreased anti-apoptotic molecules survivin and XIAP. In addition, morusin reduced expression of EGFR and PDFGR as well as phosphorylation of STAT3, possibly mediating down-regulation of survivin and XIAP. Together these results suggest that morusin enhances TRAIL sensitivity in human glioblastoma cells through regulating expression of DR5 and EGFR. Therefore, the combination treatment of TRAIL and morusin may be a new therapeutic strategy for malignant glioma patients.
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Affiliation(s)
| | - In Jin Ha
- Korean Medicine Clinical Trial Center, Kyung Hee University Korean Medicine Hospital , Seoul 02447, Republic of Korea
| | | | | | | | | | - Jun-Hee Lee
- Korean Medicine Clinical Trial Center, Kyung Hee University Korean Medicine Hospital , Seoul 02447, Republic of Korea
| | | | - Miyong Yun
- Korean Medicine Clinical Trial Center, Kyung Hee University Korean Medicine Hospital , Seoul 02447, Republic of Korea
| | - Seok-Geun Lee
- Korean Medicine Clinical Trial Center, Kyung Hee University Korean Medicine Hospital , Seoul 02447, Republic of Korea
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32
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Kim J, Yun M, Kim EO, Jung DB, Won G, Kim B, Jung JH, Kim SH. Decursin enhances TRAIL-induced apoptosis through oxidative stress mediated- endoplasmic reticulum stress signalling in non-small cell lung cancers. Br J Pharmacol 2016; 173:1033-44. [PMID: 26661339 DOI: 10.1111/bph.13408] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 11/25/2015] [Accepted: 12/03/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND AND PURPOSE The TNF-related apoptosis-inducing ligand (TRAIL) is a promising anticancer agent due to its remarkable ability to selectively kill tumour cells. However, because most tumours exhibit resistance to TRAIL-induced apoptosis, the development of combination therapies to overcome resistance to TRAIL is required for effective cancer therapy. EXPERIMENTAL APPROACH Cell viability and possible synergy between the plant pyranocoumarin decursin and TRAIL was measured by MTT assay and calcusyn software. Reactive oxygen species (ROS) and apoptosis were measured using dichlorodihydrofluorescein and annexin/propidium iodide in cell flow cytometry. Changes in protein levels were assessed with Western blotting. KEY RESULTS Combining decursin and TRAIL markedly decreased cell viability and increased apoptosis in TRAIL-resistant non-small-cell lung cancer (NSCLC) cell lines. Decursin induced expression of the death receptor 5 (DR5). Inhibition of DR5 attenuated apoptotic cell death in decursin + TRAIL treated NSCLC cell lines. Interestingly, induction of DR5 and CCAAT/enhancer-binding protein homologues protein by decursin was mediated through selective induction of the pancreatic endoplasmic reticulum kinase (PERK)/activating transcription factor 4 (ATF4) branch of the endoplasmic reticulum stress response pathway. Furthermore, enhancement of PERK/ATF4 signalling by decursin was mediated by ROS generation in NSCLC cell lines, but not in normal human lung cells. Decursin also markedly down-regulated expression of survivin and Bcl-xL in TRAIL-resistant NSCLC cells. CONCLUSIONS AND IMPLICATIONS ROS generation by decursin selectively activated the PERK/ATF4 axis of the endoplasmic reticulum stress signalling pathway, leading to enhanced TRAIL sensitivity in TRAIL-resistant NSCLC cell lines, partly via up-regulation of DR5.
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Affiliation(s)
- Jaekwang Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Miyong Yun
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Eun-Ok Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Deok-Beom Jung
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Gunho Won
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Bonglee Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Ji Hoon Jung
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Sung-Hoon Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
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33
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Soo Lee N, Jin Chung H, Kim HJ, Yun Lee S, Ji JH, Seo Y, Hun Han S, Choi M, Yun M, Lee SG, Myung K, Kim Y, Chul Kang H, Kim H. TRAIP/RNF206 is required for recruitment of RAP80 to sites of DNA damage. Nat Commun 2016; 7:10463. [PMID: 26781088 PMCID: PMC4735692 DOI: 10.1038/ncomms10463] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 12/18/2015] [Indexed: 12/17/2022] Open
Abstract
RAP80 localizes to sites of DNA insults to enhance the DNA-damage responses. Here we identify TRAIP/RNF206 as a novel RAP80-interacting protein and find that TRAIP is necessary for translocation of RAP80 to DNA lesions. Depletion of TRAIP results in impaired accumulation of RAP80 and functional downstream partners, including BRCA1, at DNA lesions. Conversely, accumulation of TRAIP is normal in RAP80-depleted cells, implying that TRAIP acts upstream of RAP80 recruitment to DNA lesions. TRAIP localizes to sites of DNA damage and cells lacking TRAIP exhibit classical DNA-damage response-defect phenotypes. Biochemical analysis reveals that the N terminus of TRAIP is crucial for RAP80 interaction, while the C terminus of TRAIP is required for TRAIP localization to sites of DNA damage through a direct interaction with RNF20–RNF40. Taken together, our findings demonstrate that the novel RAP80-binding partner TRAIP regulates recruitment of the damage signalling machinery and promotes homologous recombination. Recruiting DNA damage repair factors to the sites of DNA damage is critical for the maintenance of genome integrity. Here the authors identify that the TRAF-interacting protein (TRAIP/RNF206) is required for normal recruitment of RAP80 to DNA lesions and the stimulation of homologous recombination.
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Affiliation(s)
- Nam Soo Lee
- Department of Biological Sciences, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Hee Jin Chung
- Department of Biological Sciences, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Hyoung-June Kim
- Department of Biological Sciences, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Seo Yun Lee
- Genomic Instability Research Center, Ajou University School of Medicine, Suwon 16499, Korea
| | - Jae-Hoon Ji
- Genomic Instability Research Center, Ajou University School of Medicine, Suwon 16499, Korea
| | - Yoojeong Seo
- Department of Biological Sciences, Sookmyung Women's University, Seoul 04310, Republic of Korea
| | - Seung Hun Han
- Department of Biological Sciences, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Minji Choi
- Department of Science in Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea
| | - Miyong Yun
- Department of Science in Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea
| | - Seok-Geun Lee
- Department of Science in Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea
| | - Kyungjae Myung
- Center for Genomic Integrity, Institute for Basic Science (IBS), Ulsan National Institute of Science and Technology, Ulsan 44919, Korea
| | - Yonghwan Kim
- Department of Biological Sciences, Sookmyung Women's University, Seoul 04310, Republic of Korea
| | - Ho Chul Kang
- Genomic Instability Research Center, Ajou University School of Medicine, Suwon 16499, Korea
| | - Hongtae Kim
- Department of Biological Sciences, Sungkyunkwan University, Suwon 440-746, Republic of Korea.,Center for Neuroscience Imaging Research, Institute for Basic Science, Sungkyunkwan University, Suwon 440-746, Korea
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Jung JH, Yun M, Choo EJ, Kim SH, Jeong MS, Jung DB, Lee H, Kim EO, Kato N, Kim B, Srivastava SK, Kaihatsu K, Kim SH. A derivative of epigallocatechin-3-gallate induces apoptosis via SHP-1-mediated suppression of BCR-ABL and STAT3 signalling in chronic myelogenous leukaemia. Br J Pharmacol 2015; 172:3565-78. [PMID: 25825203 DOI: 10.1111/bph.13146] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 03/15/2015] [Accepted: 03/23/2015] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND AND PURPOSE Epigallocatechin-3-gallate (EGCG) is a component of green tea known to have chemo-preventative effects on several cancers. However, EGCG has limited clinical application, which necessitates the development of a more effective EGCG prodrug as an anticancer agent. EXPERIMENTAL APPROACH Derivatives of EGCG were evaluated for their stability and anti-tumour activity in human chronic myeloid leukaemia (CML) K562 and KBM5 cells. KEY RESULTS EGCG-mono-palmitate (EGCG-MP) showed most prolonged stability compared with other EGCG derivatives. EGCG-MP exerted greater cytotoxicity and apoptosis in K562 and KBM5 cells than the other EGCG derivatives. EGCG-MP induced Src-homology 2 domain-containing tyrosine phosphatase 1 (SHP-1) leading decreased oncogenic protein BCR-ABL and STAT3 phosphorylation in CML cells, compared with treatment with EGCG. Furthermore, EGCG-MP reduced phosphorylation of STAT3 and survival genes in K562 cells, compared with EGCG. Conversely, depletion of SHP-1 or application of the tyrosine phosphatase inhibitor pervanadate blocked the ability of EGCG-MP to suppress phosphorylation of BCR-ABL and STAT3, and the expression of survival genes downstream of STAT3. In addition, EGCG-MP treatment more effectively suppressed tumour growth in BALB/c athymic nude mice compared with untreated controls or EGCG treatment. Immunohistochemistry revealed increased caspase 3 and SHP-1 activity and decreased phosphorylation of BCR-ABL in the EGCG-MP-treated group relative to that in the EGCG-treated group. CONCLUSIONS AND IMPLICATIONS EGCG-MP induced SHP-1-mediated inhibition of BCR-ABL and STAT3 signalling in vitro and in vivo more effectively than EGCG. This derivative may be a potent chemotherapeutic agent for CML treatment.
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Affiliation(s)
- Ji Hoon Jung
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Miyong Yun
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Eun-Jeong Choo
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Sun-Hee Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Myoung-Seok Jeong
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Deok-Beom Jung
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Hyemin Lee
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Eun-Ok Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Nobuo Kato
- The Institute of Scientific and Industrial Research, Osaka University, Osaka, Japan
| | - Bonglee Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Sanjay K Srivastava
- Department of Biomedical Sciences and Cancer Biology Center, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Kunihiro Kaihatsu
- The Institute of Scientific and Industrial Research, Osaka University, Osaka, Japan
| | - Sung-Hoon Kim
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
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Park M, Choi Y, Cho A, Hwang S, Cha J, Lee N, Yun M. SU-D-201-02: Prediction of Delivered Dose Based On a Joint Histogram of CT and FDG PET Images. Med Phys 2015. [DOI: 10.1118/1.4923910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Chae JW, Hwang JA, Baek IH, Pradhan S, Song B, Back HM, Yun M, Pai C, Bang JS, Yun HY, Kang W, Kwon KI. Determination of influence of food intake after a single oral dose of mosapride in beagle dogs using nonlinear mixed effect modeling. J Vet Pharmacol Ther 2015; 38:590-5. [DOI: 10.1111/jvp.12228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 03/11/2015] [Indexed: 11/30/2022]
Affiliation(s)
- J.-W. Chae
- College of Pharmacy; Chungnam National University; Daejeon Korea
| | - J.-A. Hwang
- College of Pharmacy; Chungnam National University; Daejeon Korea
- LG Life Sciences; Drug Metabolism and Pharmacokinetics; Daejeon Korea
| | - I.-H. Baek
- College of Pharmacy; Kyungsung University; Busan Korea
| | - S. Pradhan
- College of Pharmacy; Chungnam National University; Daejeon Korea
| | - B. Song
- College of Pharmacy; Chungnam National University; Daejeon Korea
| | - H.-M. Back
- College of Pharmacy; Chungnam National University; Daejeon Korea
| | - M. Yun
- R&D Center Biology & Clinical Pharmacology; Samyang Biopharmaceuticals Corporation; Daejeon Korea
| | - C. Pai
- Nanobio Convergence Studies; Catholic University; Bucheon Korea
| | - J. S. Bang
- Graduate School of Clinical Pharmacy; Sookmyung Women's University; Seoul Korea
| | - H.-Y. Yun
- College of Pharmacy; Chungnam National University; Daejeon Korea
| | - W. Kang
- College of Pharmacy; Chung-Ang University; Seoul Korea
| | - K.-I. Kwon
- College of Pharmacy; Chungnam National University; Daejeon Korea
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Ahn S, Lee JH, Park J, Lee H, Jeon T, Ryu Y, Sohn J, Yun M, Jeong J. Standardize uptake value of 18F-FDG-PET-CT is in accordance with the 21-gene recurrence score (Oncotype Dx) in ER-positive and HER2-negative breast cancer patients. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv117.35] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Yun M, Lee D, Park MN, Kim EO, Sohn EJ, Kwon BM, Kim SH. Cinnamaldehyde derivative (CB-PIC) sensitizes chemo-resistant cancer cells to drug-induced apoptosis via suppression of MDR1 and its upstream STAT3 and AKT signalling. Cell Physiol Biochem 2015; 35:1821-30. [PMID: 25833196 DOI: 10.1159/000373993] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Our group reported that cinnamaldehyde derivative, (E)-4-((2-(3-oxopop-1-enyl)phenoxy)methyl)pyridinium malonic acid (CB-PIC) induced apoptosis in hypoxic SW620 colorectal cancer cells via activation of AMP-activated protein kinase (AMPK) and extracellular signal regulated kinase (ERK). Herein, sensitizing effect of CB-PIC was investigated in resistant cancer cells such as paclitaxel (PT) resistant lung cancer cells (H460/PT), and Adriamycin (Adr) resistant breast cancer (MCF7/Adr) and colon cancer (HCT15/cos) cells. METHODS Various drug resistant cell lines were treated with CB-PIC, and the signalling pathway and functional assay were explored by Western blot, Rhodamine assay, FACS, RT-PCR and MTT assay. RESULTS We found that CB-PIC effectively exerted cytotoxicity, increased sub G1 population and the cleaved form of poly (ADP-ribose) polymerase (PARP) and caspase 9 in drug resistant cancer cells. Furthermore, CB-PIC sensitized resistant cancer cells to adriamycin via downregulation of survival proteins such as survivin, Bcl-xL and Bcl-2, along with MDR1 suppression leading to accumulation of drug in the intracellular region. Of note, CB-PIC transcriptionally decreased MDR1 expression via suppression of STAT3 and AKT signalling in three resistant cancer cells with highly expressed P-glycoprotein. Nonetheless, CB-PIC did not affect transport activity of P-glycoprotein in a short time efflux assay, while epigallocatechin gallate (EGCG) accumulated Rhodamine 123 into intracellular region of cell by direct inhibition of MDR1 transport activity. CONCLUSIONS These data demonstrate that CB-PIC suppresses the P-glycoprotein expression through inhibition of STAT3 and AKT signalling to overcome drug resistance in chemo-resistant cancer cells as a potent chemotherapeutic sensitizer.
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Affiliation(s)
- Miyong Yun
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
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Yoon S, Park SJ, Han JH, Kang JH, Kim JH, Lee J, Park S, Shin HJ, Kim K, Yun M, Chwae YJ. Caspase-dependent cell death-associated release of nucleosome and damage-associated molecular patterns. Cell Death Dis 2014; 5:e1494. [PMID: 25356863 PMCID: PMC4649531 DOI: 10.1038/cddis.2014.450] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 08/05/2014] [Accepted: 08/07/2014] [Indexed: 12/12/2022]
Abstract
Apoptosis, which is anti-inflammatory, and necrosis, which is pro-inflammatory, represent the extremes of the cell death spectrum. Cell death is complex and both apoptosis and necrosis can be observed in the same cells or tissues. Here, we introduce a novel combined mode of cellular demise--caspase-dependent regulated necrosis. Most importantly, it is mainly characterized with release of marked amount of oligo- or poly-nucleosomes and their attached damage-associated molecular patterns (DAMPs) and initiated by caspase activation. Caspase-activated DNase has dual roles in nucleosomal release as it can degrade extracellularly released chromatin into poly- or oligo-nucleosomes although it prohibits release of nucleosomes. In addition, osmotically triggered water movement following Cl(-) influx and subsequent Na(+) influx appears to be the major driving force for nucleosomal and DAMPs release. Finally, Ca(2+)-activated cysteine protease, calpain, is an another essential factor in nucleosomal and DAMPs release because of complete reversion to apoptotic morphology from necrotic one and blockade of nucleosomal and DAMPs release by its inhibition.
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Affiliation(s)
- S Yoon
- 1] Department of Microbiology, Ajou University School of Medicine, Suwon, Korea [2] Department of Biomedical Sciences, Ajou University, Suwon, Korea
| | - S J Park
- 1] Department of Microbiology, Ajou University School of Medicine, Suwon, Korea [2] Department of Biomedical Sciences, Ajou University, Suwon, Korea
| | - J H Han
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - J H Kang
- 1] Department of Microbiology, Ajou University School of Medicine, Suwon, Korea [2] Department of Biomedical Sciences, Ajou University, Suwon, Korea
| | - J-h Kim
- Electron Microscopy Laboratory, Eulji University, Seongnam, Korea
| | - J Lee
- Bio-Medical Science Co. Ltd, Seoul, Korea
| | - S Park
- 1] Department of Microbiology, Ajou University School of Medicine, Suwon, Korea [2] Department of Biomedical Sciences, Ajou University, Suwon, Korea
| | - H-J Shin
- 1] Department of Microbiology, Ajou University School of Medicine, Suwon, Korea [2] Department of Biomedical Sciences, Ajou University, Suwon, Korea
| | - K Kim
- 1] Department of Microbiology, Ajou University School of Medicine, Suwon, Korea [2] Department of Biomedical Sciences, Ajou University, Suwon, Korea
| | - M Yun
- Department of Nuclear Medicine, College of Medicine, Yonsei University, Seoul, Korea
| | - Y-J Chwae
- 1] Department of Microbiology, Ajou University School of Medicine, Suwon, Korea [2] Department of Biomedical Sciences, Ajou University, Suwon, Korea
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Lee D, Yun M. Abstract 768: CB-PIC sensitizes chemoresistant cancer cells to drugs via suppression of MDR1 and its upstream signal molecules, AKT and p38-MAPK. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
ATP-binding cassette (ABC) transporters including MDR1-/P-gp have been majorly targeted for drug resistant tumor therapies. In this study, we screened the compound that negatively affects MDR-1 expression in chomoresistant cancer cell lines. We found that CB-PIC, the novel synthetic compound, could decrease P-glycoprotein expression via disrupt AKT/p-38 signal pathway in paclitaxel resistant lung cancer cell, H460/PR and doxorubicin resistant breast cancer cell, MCF7/Adr with highly expressed P-glycoprotein. However, CB-PIC did not regulate enzyme activity of P-glycoprotein, while EGCG and tannic acid accumulated Rhodamine 123 intracellular region of cell via short time efflux assay. CB-PIC treatment resulted in disruption of proliferation of drug resistant cells. In addition, CB-PIC dramatically induced apoptosis in time and dose dependent manner in both paclitaxel and doxorubicin resistant cancer cells. Furthermore, CB-PIC sensitizes drug-resistant cancer cells to paclitaxel and doxorubicin by decrease of survival proteins, survivin, Mcl-1 and Bcl-2, as well as MDR1 suppression leading to accumulate the treated drug intracellular region. Taken together, CB-PIC suppresses the P-glycoprotein expression through inhibition of AKT/p-38 MAPK signaling resulting in the increase of drug sensitivity in chemoresistant cancer cells.
Citation Format: Duckgue Lee, Miyong Yun. CB-PIC sensitizes chemoresistant cancer cells to drugs via suppression of MDR1 and its upstream signal molecules, AKT and p38-MAPK. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 768. doi:10.1158/1538-7445.AM2014-768
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Affiliation(s)
- Duckgue Lee
- Kyunghee University, Seoul, Republic of Korea
| | - Miyong Yun
- Kyunghee University, Seoul, Republic of Korea
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Yun M, Kim EO, Lee D, Kim JH, Kim J, Lee H, Lee J, Kim SH. Melatonin sensitizes H1975 non-small-cell lung cancer cells harboring a T790M-targeted epidermal growth factor receptor mutation to the tyrosine kinase inhibitor gefitinib. Cell Physiol Biochem 2014; 34:865-72. [PMID: 25199820 DOI: 10.1159/000366305] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS The use of tyrosine kinase inhibitors (TKIs) to target active epidermal growth factor receptor (EGFR)-harbouring mutations has been effective in patients with advanced non-small-cell lung cancer (NSCLC). However, the use of TKIs in NSCLS patients with somatic EGFR mutations, particularly T790M, causes drug resistance. Thus, in the present study, we investigated overcoming resistance against the TKI gefitinib by combination treatment with melatonin in H1975 NSCLC cells harbouring the T790M somatic mutation. METHODS H1975 and HCC827 cells were treated with melatonin in combination with gefitinib, and cell viability, cell cycle progression, apoptosis, and EGFR, AKT, p38, Bcl-2, Bcl-xL, caspase 3 and Bad protein levels were examined. RESULTS Treatment with melatonin dose-dependently decreased the viability of H1975 cells harbouring the T790M somatic mutation compared to HCC827 cells with an EGFR active mutation. Melatonin-mediated cell death resulted in decreased phosphorylation of EGFR and Akt, leading to attenuated expression of survival proteins, such as Bcl-2, Bcl-xL and survivin, and activated caspase 3 in H1975 cells, but not in HCC827 cells. However, we did not observe a significant change in expression of cell cycle proteins, such as cyclin D, cyclin A, p21 and CDK4 in H1975 cells. Surprisingly, co-treatment of gefitinib with melatonin effectively decreased the viability of H1975 cells, but not HCC827 cells. Moreover, co-treatment of H1975 cells caused consistent down-regulation of EGFR phosphorylation and induced apoptosis compared to treatment with gefitinib or melatonin alone. CONCLUSIONS Our findings demonstrate that melatonin acts as a potent chemotherapeutic agent by sensitising to gefitinib TKI-resistant H1975 cells that harbour a EGFR T790M mutation.
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Affiliation(s)
- Miyong Yun
- College of Korean Medicine, Kyung Hee University, Seoul, South Korea
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Han I, Yun M, Kim EO, Kim B, Jung MH, Kim SH. Umbilical cord tissue-derived mesenchymal stem cells induce apoptosis in PC-3 prostate cancer cells through activation of JNK and downregulation of PI3K/AKT signaling. Stem Cell Res Ther 2014; 5:54. [PMID: 24739733 PMCID: PMC4055109 DOI: 10.1186/scrt443] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 03/21/2014] [Indexed: 12/15/2022] Open
Abstract
Introduction Although mesenchymal stem cells (MSCs) have antitumor potential in hepatocellular carcinoma and breast cancer cells, the antitumor mechanism of human umbilical cord mesenchymal stem cells (hUCMSCs) in prostate cancer cells still remains unclear. Thus, in the present study, we elucidated the antitumor activity of hUCMSCs in PC-3 prostate cancer cells in vitro and in vivo. Methods hUCMSCs were isolated from Wharton jelly of umbilical cord and characterized via induction of differentiations, osteogenesis, and adipogenesis. Antitumor effects of UCMSCs on tumor growth were evaluated in a co-culture condition with PC-3 prostate cancer cells. PC-3 cells were subcutaneously (sc) injected into the left flank of nude mice, and UCMSCs were sc injected into the right flank of the same mouse. Results We found that hUCMSCs inhibited the proliferation of PC-3 cells in the co-culture condition. Furthermore, co-culture of hUCMSCs induced the cleavage of caspase 9/3 and PARP, activated c-jun NH2-terminal kinase (JNK), and Bax, and attenuated the phosphorylation of phosphatidylinositol 3-kinase (PI3K)/ AKT, extracellular signal-regulated kinase (ERK), and the expression of survival genes such as Bcl-2, Bcl-xL, Survivin, Mcl-1, and cIAP-1 in PC-3 cells in Western blotting assay. Conversely, we found that treatment of specific JNK inhibitor SP600125 suppressed the cleavages of caspase 9/3 and PARP induced by hUCMSCs in PC-3 cells by Western blotting and immunofluorescence assay. The homing of hUCMSCs to, and TUNEL-positive cells on, the K562 xenograft tumor region were detected in Nu/nu-BALB/c mouse. Conclusions These results suggest that UCMSCs inhibit tumor growth and have the antitumor potential for PC-3 prostate cancer treatment.
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Ha B, Ko H, Kim B, Sohn EJ, Jung JH, Kim JS, Yoon JJ, Won G, Kim JH, Jung DB, Yun M, Shim B, Kim SH. Regulation of crosstalk between epithelial to mesenchymal transition molecules and MMP-9 mediates the antimetastatic activity of anethole in DU145 prostate cancer cells. J Nat Prod 2014; 77:63-69. [PMID: 24328151 DOI: 10.1021/np4006376] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The underlying antimetastatic mechanism of anethole (1) still remains unclear in association with the molecules of the epithelial to mesenchymal transition (EMT). Herein, the role of the EMT molecules was elucidated in terms of the antimetastatic activity of 1 using DU145 cells. Anethole significantly inhibited the adhesion of DU145 cells to vitronectin-coated plates, as well as migration in a wound-healing assay and invasion using a Boyden chamber. Also, anethole suppressed the expression of MMP-9 in DU145 cells by zymography, ELISA, and RT-PCR. Consistently, the silencing of MMP-9 enhanced the activity of 1 to upregulate the expression of E-cadherin and to attenuate the expression of Vimentin in DU145 cells. Compound 1 enhanced E-cadherin, which is an epithelial marker and attenuated the expression of Vimentin, Twist, and Snail as mesenchymal molecules at the mRNA level. Consistently, anethole upregulated E-cadherin and downregulated the expression of Vimentin, Twist and PI3K, and AKT at the protein level in DU145 cells. Conversely, the antimetastatic effects of 1 to inhibit invasion and the expression of MMP-9 and upregulate E-cadherin were reversed by the EMT inducer TGF-β in DU145 cells. Overall, the present findings suggest that anethole exerts antimetastatic activity via regulation of crosstalk between EMT molecules and MMP-9 on the basis of the in vitro data obtained.
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Affiliation(s)
- ByungChul Ha
- College of Korean Medicine, Kyung Hee University , Dongdaemun-gu, Seoul 131-701, Seoul, South Korea
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Woo SR, Byun JG, Kim YH, Park ER, Joo HY, Yun M, Shin HJ, Kim SH, Shen YN, Park JE, Park GH, Lee KH. SIRT1 suppresses cellular accumulation of β-TrCP E3 ligase via protein degradation. Biochem Biophys Res Commun 2013; 441:831-7. [PMID: 24211209 DOI: 10.1016/j.bbrc.2013.10.146] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 10/28/2013] [Indexed: 10/26/2022]
Abstract
β-Transducin repeat-containing protein (β-TrCP), an E3 ligase, promotes the degradation of substrate proteins in response to various stimuli. Even though several β-TrCP substrates have been identified to date, limited information of its upstream regulators is available. Here, we showed that SIRT1 suppresses β-TrCP protein synthesis via post-translational degradation. SIRT1 depletion led to a significant increase in the β-TrCP accumulation without affecting the mRNA level. Consistently, β-TrCP protein accumulation induced by resveratrol was further enhanced upon SIRT1 depletion. Rescue of SIRT1 reversed the effect of resveratrol, leading to reduced β-TrCP protein levels. Proteasomal inhibition led to recovery of β-TrCP in cells with SIRT1 overexpression. Notably, the recovered β-TrCP colocalized mostly with SIRT1. Thus, SIRT1 acts as a negative regulator of β-TrCP synthesis via promoting protein degradation.
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Affiliation(s)
- Seon Rang Woo
- Division of Radiation Cancer Research, Korea Institute of Radiological & Medical Sciences, Seoul 139-706, Republic of Korea
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Son HS, Kwon HY, Sohn EJ, Lee JH, Woo HJ, Yun M, Kim SH, Kim YC. Activation of AMP-activated protein kinase and phosphorylation of glycogen synthase kinase3 β mediate ursolic acid induced apoptosis in HepG2 liver cancer cells. Phytother Res 2013; 27:1714-22. [PMID: 23325562 DOI: 10.1002/ptr.4925] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 12/10/2012] [Accepted: 12/13/2012] [Indexed: 12/16/2023]
Abstract
Despite the antitumour effect of ursolic acid observed in several cancers, the underlying mechanism remains unclear. Thus, in the present study, the roles of AMP-activated protein kinase (AMPK) and glycogen synthase kinase 3 beta (GSK3β) were examined in ursolic acid induced apoptosis in HepG2 hepatocellular carcinoma cells. Ursolic acid significantly exerted cytotoxicity, increased the sub-G1 population and the number of ethidium homodimer and terminal deoxynucleotidyl transferase(TdT) mediated dUTP nick end labeling positive cells in HepG2 cells. Also, ursolic acid enhanced the cleavages of poly-ADP-ribose polymerase (PARP) and caspase3, attenuated the expression of astrocyte elevated gene (AEG1) and survivin in HepG2 cells. Interestingly, ursolic acid increased the phosphorylation of AMPK and coenzyme A carboxylase and also enhanced phosphorylation of GSK3β at inactive form serine 9, whereas ursolic acid attenuated the phosphorylation of AKT and mTOR in HepG2 cells. Conversely, AMPK inhibitor compound C or GSK3β inhibitor SB216763 blocked the cleavages of PARP and caspase 3 induced by ursolic acid in HepG2 cells. Furthermore, proteosomal inhibitor MG132 suppressed AMPK activation, GSK3β phosphorylation, cleaved PARP and deceased AEG-1 induced by ursolic acid in HepG2 cells. Overall, our findings suggest that ursolic acid induced apoptosis in HepG2 cells via AMPK activation and GSK3β phosphorylation as a potent chemopreventive agent.
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Affiliation(s)
- Hyun-Soo Son
- College of Oriental Medicine, Kyung Hee University, Seoul, 130-701, Korea
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Chang J, Choi S, Jeong Y, Yun M, Seong J. FDG-PET as a Predictor of Outcome Following Radiation Therapy for Bone Metastasis in Patients With Hepatocellular Carcinoma. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Jung JH, Jeong SJ, Kim JH, Jung SK, Jung DB, Lee D, Sohn EJ, Yun M, Lee HJ, Lee HJ, Kim SH. Inactivation of HDAC3 and STAT3 is Critically Involved in 1-Stearoyl-sn-Glycero-3-Phosphocholine-Induced Apoptosis in Chronic Myelogenous Leukemia K562 Cells. Cell Biochem Biophys 2013; 67:1379-89. [DOI: 10.1007/s12013-013-9670-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Jung DB, Jeong SJ, Kwon HY, Jung JH, sohn E, Sin EA, Kim JH, Cho SM, Yun M, Lee HJ, Kim SH. Abstract 836: Decursin and doxorubicin are in synergy for the induction of apoptosis via STAT3 and/or mTOR pathways in human multiple myeloma cells. Cancer Res 2013. [DOI: 10.1158/1538-7445.am2013-836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Drug resistance causes a serious limitation for the chemotherapy of multiple myeloma. Combination cancer therapy is one of attractive approaches to overcome drug resistance of cancer cells. In the present study, we investigated the synergistic effect of decursin (a major compound in Angelica gigas) and doxorubicin on the induction of apoptosis in three human multiple myeloma cells. Concurrent treatment of decursin and doxorubicin significantly exerted significant cytotoxicity, while doxorubicin or decursin alone had no cytotoxic effect at physiologically relevant concentrations in signal transducer and activator of transcription 3 (STAT3) positive cell lines such as U266 and RPMI8226 cells and also STAT3 negative cell line MM.1S cells. We further demonstrated that the loss of the viability of the cells co-treated with decursin and doxorubicin was due to the induction of apoptosis. Combination treatment of doxorubicin and decursin enhanced the activation of caspapse-9 and 3, the cleavage of poly (ADP-ribose) polymerase (PARP) and sub G1 population compared to either drug alone in three multiple myeloma cells. In addition, the combined treatment of doxorubicin and decursin downregulated the phosphorylation of the mammalian target of rapamycin (mTOR) and its downstream S6K1 and activated the phosphorylation of extracellular signal regulated kinase (ERK) in three multiple myeloma cells. Furthermore, the combined treatment of doxorubicin and decursin reduced mitochondrial membrane potential, suppressed the phosphorylation of JAK2, STAT3 and Src, activated SHP-2 and attenuated the expression of cyclind-D and survivin in STAT3 positive U266 cells. Conversely, the broadly-acting tyrosine phosphatases inhibitor pervanadate reversed STAT3 inactivation and also PARP cleavage and caspase-3 activatio induced by combine treatment of doxorubicin and decursin in U266 cells.
Citation Format: Duck-Beom Jung, Soo-Jin Jeong, Hee-Young Kwon, Ji Hoon Jung, Eunjung sohn, Eun Ah Sin, Ji-Hyun Kim, Sun-Mi Cho, Miyong Yun, Hyo-jung Lee, Sung Hoon Kim. Decursin and doxorubicin are in synergy for the induction of apoptosis via STAT3 and/or mTOR pathways in human multiple myeloma cells. [abstract]. In: Proceedings of the 104th Annual Meeting of the American Association for Cancer Research; 2013 Apr 6-10; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2013;73(8 Suppl):Abstract nr 836. doi:10.1158/1538-7445.AM2013-836
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Affiliation(s)
- Duck-Beom Jung
- Kyung Hee Univ. College of Oriental Medicine, Seoul, Republic of Korea
| | - Soo-Jin Jeong
- Kyung Hee Univ. College of Oriental Medicine, Seoul, Republic of Korea
| | - Hee-Young Kwon
- Kyung Hee Univ. College of Oriental Medicine, Seoul, Republic of Korea
| | - Ji Hoon Jung
- Kyung Hee Univ. College of Oriental Medicine, Seoul, Republic of Korea
| | - Eunjung sohn
- Kyung Hee Univ. College of Oriental Medicine, Seoul, Republic of Korea
| | - Eun Ah Sin
- Kyung Hee Univ. College of Oriental Medicine, Seoul, Republic of Korea
| | - Ji-Hyun Kim
- Kyung Hee Univ. College of Oriental Medicine, Seoul, Republic of Korea
| | - Sun-Mi Cho
- Kyung Hee Univ. College of Oriental Medicine, Seoul, Republic of Korea
| | - Miyong Yun
- Kyung Hee Univ. College of Oriental Medicine, Seoul, Republic of Korea
| | - Hyo-jung Lee
- Kyung Hee Univ. College of Oriental Medicine, Seoul, Republic of Korea
| | - Sung Hoon Kim
- Kyung Hee Univ. College of Oriental Medicine, Seoul, Republic of Korea
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49
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You OH, Kim SH, Kim B, Sohn EJ, Lee HJ, Shim BS, Yun M, Kwon BM, Kim SH. Ginkgetin induces apoptosis via activation of caspase and inhibition of survival genes in PC-3 prostate cancer cells. Bioorg Med Chem Lett 2013; 23:2692-5. [PMID: 23523142 DOI: 10.1016/j.bmcl.2013.02.080] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 02/14/2013] [Accepted: 02/18/2013] [Indexed: 12/14/2022]
Abstract
Ginkgetin is a natural biflavonoid isolated from leaves of Ginkgo biloba L. Though it was known to have anti-inflammatory, anti-influenza virus, anti-fungal activity, osteoblast differentiation stimulating activity and neuro-protective effects, the underlying antitumor mechanism of ginkgetin still remains unclear. Thus, in the present study, anti-cancer mechanism of ginkgetin was elucidated in human prostate cancer PC-3 cells. Ginkgetin suppressed the viability of PC-3 cells in a concentration-dependent manner and also significantly increased the sub-G1 DNA contents of cell cycle in PC-3 cells. Ginkgetin activated caspase-3 and attenuated the expression of survival genes such as Bcl-2, Bcl-xL, survivin and Cyclin D1 at protein and mRNA levels. Consistently, pan-caspase inhibitor Z-DEVD-fmk blocked sub G1 accumulation and cleavages of PRAP and caspase 3 induced by ginkgetin in PC-3 cells. Overall, these findings suggest that ginkgetin induces apoptosis in PC-3 cells via activation of caspase 3 and inhibition of survival genes as a potent chemotherapeutic agent for prostate cancer treatment.
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Affiliation(s)
- Ok Heui You
- College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
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Huh JW, Wu J, Lee CH, Yun M, Gilada D, Brautigam CA, Li B. Multivalent di-nucleosome recognition enables the Rpd3S histone deacetylase complex to tolerate decreased H3K36 methylation levels. EMBO J 2012; 31:3564-74. [PMID: 22863776 DOI: 10.1038/emboj.2012.221] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Accepted: 07/12/2012] [Indexed: 11/09/2022] Open
Abstract
The Rpd3S histone deacetylase complex represses cryptic transcription initiation within coding regions by maintaining the hypo-acetylated state of transcribed chromatin. Rpd3S recognizes methylation of histone H3 at lysine 36 (H3K36me), which is required for its deacetylation activity. Rpd3S is able to function over a wide range of H3K36me levels, making this a unique system to examine how chromatin regulators tolerate the reduction of their recognition signal. Here, we demonstrated that Rpd3S makes histone modification-independent contacts with nucleosomes, and that Rpd3S prefers di-nucleosome templates since two binding surfaces can be readily accessed simultaneously. Importantly, this multivalent mode of interaction across two linked nucleosomes allows Rpd3S to tolerate a two-fold intramolecular reduction of H3K36me. Our data suggest that chromatin regulators utilize an intrinsic di-nucleosome-recognition mechanism to prevent compromised function when their primary recognition modifications are diluted.
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Affiliation(s)
- Jae-Wan Huh
- Department of Molecular Biology, UT Southwestern Medical Center, Dallas, TX 75390-9148, USA
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