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Zhang B, Sim WK, Shen TL, Lim SK. Engineered EVs with pathogen proteins: promising vaccine alternatives to LNP-mRNA vaccines. J Biomed Sci 2024; 31:9. [PMID: 38233833 DOI: 10.1186/s12929-024-01000-1] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 01/04/2024] [Indexed: 01/19/2024] Open
Abstract
Extracellular vesicles (EVs) are tiny, lipid membrane-bound structures that are released by most cells. They play a vital role in facilitating intercellular communication by delivering bioactive cargoes to recipient cells and triggering cellular as well as biological responses. EVs have enormous potential for therapeutic applications as native or engineered exosomes. Native EVs are naturally released by cells without undergoing any modifications to either the exosomes or the cells that secrete them. In contrast, engineered EVs have been deliberately modified post-secretion or through genetic engineering of the secreting cells to alter their composition. Here we propose that engineered EVs displaying pathogen proteins could serve as promising alternatives to lipid nanoparticle (LNP)-mRNA vaccines. By leveraging their unique characteristics, these engineered EVs have the potential to overcome certain limitations associated with LNP-mRNA vaccines.
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Affiliation(s)
- Bin Zhang
- Institute of Molecular and Cellular Biology, A*STAR, 8A Biomedical Grove, Singapore, 138648, Singapore
- Paracrine Therapeutics Pte. Ltd., 10 Choa Chu Kang Grove #13-22 Sol Acres, Singapore, 688207, Singapore
| | - Wei Kian Sim
- Institute of Molecular and Cellular Biology, A*STAR, 8A Biomedical Grove, Singapore, 138648, Singapore
- Paracrine Therapeutics Pte. Ltd., 10 Choa Chu Kang Grove #13-22 Sol Acres, Singapore, 688207, Singapore
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, 10617, Taiwan
- Center for Biotehnology, National Taiwan University, Taipei, 10617, Taiwan
| | - Sai Kiang Lim
- Institute of Molecular and Cellular Biology, A*STAR, 8A Biomedical Grove, Singapore, 138648, Singapore.
- Paracrine Therapeutics Pte. Ltd., 10 Choa Chu Kang Grove #13-22 Sol Acres, Singapore, 688207, Singapore.
- Department of Surgery, YLL School of Medicine, National University of Singapore (NUS), Lower Kent Ridge Road, Singapore, 119074, Singapore.
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2
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Lee BH, Chen YZ, Shen TL, Pan TM, Hsu WH. Proteomic characterization of extracellular vesicles derived from lactic acid bacteria. Food Chem 2023; 427:136685. [PMID: 37356267 DOI: 10.1016/j.foodchem.2023.136685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 05/08/2023] [Accepted: 06/18/2023] [Indexed: 06/27/2023]
Abstract
Lactobacillus species confer health benefits by their metabolites, secreted molecules, and population numbers. Extracellular vesicles (EVs) are nano-sized particles released from cells and mediate intercellular communications. EVs-encapsulated cargos are a crucial key to decide involved biological function. However, little is known about the composition of EVs, leaving mechanisms by which Lactobacillus-derived EVs affect recipient cells remaining unresolved. This study examined the composition of EV proteins from Lactobacillus species by using liquid chromatography coupled with tandem mass spectrometry, including L. plantarum, L. fermentum, and L. gasseri. The major proteins of EVs are associated with biological processes such as catalytic activity, gluco-neogenesis, cell wall organization, and glycolytic processes. Motif enrichment analysis revealed that EVs from L. plantarum and L. fermentum contained proteins with serine-rich motif. This is the first study to report the composition and comparison of EV proteins from Lactobacillus species, providing important information of EVs in functional food products development.
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Affiliation(s)
- Bao-Hong Lee
- Department of Horticulture, National Chiayi University, Chiayi 60004, Taiwan
| | - You-Zuo Chen
- Department of Food Safety/Hygiene and Risk Management, College of Medicine, National Cheng Kung University, Tainan 701401, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei 106319, Taiwan; Center for Biotechnology, National Taiwan University, Taipei 106319, Taiwan
| | - Tzu-Ming Pan
- Department of Research and Development Division, SunWay Biotech Co., Ltd., Taipei 114067, Taiwan; Department of Biochemical Science and Technology, College of Life Science, National Taiwan University, Taipei 106319, Taiwan
| | - Wei-Hsuan Hsu
- Department of Food Safety/Hygiene and Risk Management, College of Medicine, National Cheng Kung University, Tainan 701401, Taiwan; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan 701401, Taiwan.
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3
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Lee BH, Wu SC, Chien HY, Shen TL, Hsu WH. Tomato-fruit-derived extracellular vesicles inhibit Fusobacterium nucleatum via lipid-mediated mechanism. Food Funct 2023; 14:8942-8950. [PMID: 37723977 DOI: 10.1039/d3fo01608k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
Nano-sized extracellular vesicles (EV) are essential for cell communication. Studies on EV from natural sources including edible plants are gaining momentum due to the biological implications. In this study, EV from tomato fruit were isolated by ultracentrifugation and their physical and morphological features along with their biocargo profiles were analyzed. We found that tomato EV promote the growth of probiotic Lactobacillus species, while inhibiting growth of the opportunistic intestinal pathogens Clostridioides difficile and Fusobacterium nucleatum. Tomato EV reversed microbiota dysbiosis caused by F. nucleatum in a simulator of the gut microbiota fermentation model. Phospholipid analysis of tomato EV revealed that the anti-bacterial effect of tomato-EV was driven by the presence of specific lipids in the EV, as demonstrated by lipid depletion and reconstitution experiments. The findings suggest the potential of tomato-derived EV for treating gut microbiota dysbiosis and preventing intestinal bacterial infections.
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Affiliation(s)
- Bao-Hong Lee
- Department of Horticulture, National Chiayi University, Chiayi 60004, Taiwan
| | - She-Ching Wu
- Department of Food Sciences, National Chiayi University, Chiayi 60004, Taiwan
| | - Hao-Yuan Chien
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei 10617, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei 10617, Taiwan
- Center for Biotechnology, National Taiwan University, Taipei 10617, Taiwan
| | - Wei-Hsuan Hsu
- Department of Food Safety/Hygiene and Risk Management, College of Medicine, National Cheng Kung University, Tainan 811213, Taiwan.
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Hong SF, Fang RY, Wei WL, Jirawitchalert S, Pan ZJ, Hung YL, Pham TH, Chiu YH, Shen TL, Huang CK, Lin SS. Development of an assay system for the analysis of host RISC activity in the presence of a potyvirus RNA silencing suppressor, HC-Pro. Virol J 2023; 20:10. [PMID: 36650505 PMCID: PMC9844029 DOI: 10.1186/s12985-022-01956-2] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 12/18/2022] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND To investigate the mechanism of RNA silencing suppression, the genetic transformation of viral suppressors of RNA silencing (VSRs) in Arabidopsis integrates ectopic VSR expression at steady state, which overcomes the VSR variations caused by different virus infections or limitations of host range. Moreover, identifying the insertion of the transgenic VSR gene is necessary to establish a model transgenic plant for the functional study of VSR. METHODS Developing an endogenous AGO1-based in vitro RNA-inducing silencing complex (RISC) assay prompts further investigation into VSR-mediated suppression. Three P1/HC-Pro plants from turnip mosaic virus (TuMV) (P1/HC-ProTu), zucchini yellow mosaic virus (ZYMV) (P1/HC-ProZy), and tobacco etch virus (TEV) (P1/HC-ProTe) were identified by T-DNA Finder and used as materials for investigations of the RISC cleavage efficiency. RESULTS Our results indicated that the P1/HC-ProTu plant has slightly lower RISC activity than P1/HC-ProZy plants. In addition, the phenomena are consistent with those observed in TuMV-infected Arabidopsis plants, which implies that HC-ProTu could directly interfere with RISC activity. CONCLUSIONS In this study, we demonstrated the application of various plant materials in an in vitro RISC assay of VSR-mediated RNA silencing suppression.
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Affiliation(s)
- Syuan-Fei Hong
- grid.19188.390000 0004 0546 0241Institute of Biotechnology, National Taiwan University, Taipei, 106 Taiwan
| | - Ru-Ying Fang
- grid.19188.390000 0004 0546 0241Institute of Biotechnology, National Taiwan University, Taipei, 106 Taiwan
| | - Wei-Lun Wei
- grid.19188.390000 0004 0546 0241Institute of Biotechnology, National Taiwan University, Taipei, 106 Taiwan
| | - Supidcha Jirawitchalert
- grid.19188.390000 0004 0546 0241Institute of Biotechnology, National Taiwan University, Taipei, 106 Taiwan
| | - Zhao-Jun Pan
- grid.19188.390000 0004 0546 0241Institute of Biotechnology, National Taiwan University, Taipei, 106 Taiwan
| | - Yu-Ling Hung
- grid.19188.390000 0004 0546 0241Institute of Biotechnology, National Taiwan University, Taipei, 106 Taiwan
| | - Thanh Ha Pham
- grid.19188.390000 0004 0546 0241Institute of Biotechnology, National Taiwan University, Taipei, 106 Taiwan
| | - Yen-Hsin Chiu
- grid.19188.390000 0004 0546 0241Institute of Biotechnology, National Taiwan University, Taipei, 106 Taiwan ,grid.453140.70000 0001 1957 0060Seed Improvement and Propagation Station, Council of Agriculture, Taichung, 427 Taiwan
| | - Tang-Long Shen
- grid.19188.390000 0004 0546 0241Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, 106 Taiwan ,grid.19188.390000 0004 0546 0241Center of Biotechnology, National Taiwan University, Taipei, 106 Taiwan
| | - Chien-Kang Huang
- Department of Computer Science and Information Engineering, National Taiwan University, Taipei, 106, Taiwan.
| | - Shih-Shun Lin
- Institute of Biotechnology, National Taiwan University, Taipei, 106, Taiwan. .,Agricultural Biotechnology Research Center, Academia Sinica, Taipei, 115, Taiwan. .,Center of Biotechnology, National Taiwan University, Taipei, 106, Taiwan.
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Chang LC, Hsu YC, Chiu HM, Ueda K, Wu MS, Kao CH, Shen TL. Exploration of the Proteomic Landscape of Small Extracellular Vesicles in Serum as Biomarkers for Early Detection of Colorectal Neoplasia. Front Oncol 2021; 11:732743. [PMID: 34589434 PMCID: PMC8473825 DOI: 10.3389/fonc.2021.732743] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 06/29/2021] [Accepted: 08/24/2021] [Indexed: 12/11/2022] Open
Abstract
Background Patient participation in colorectal cancer (CRC) screening via a stool test and colonoscopy is suboptimal, but participation can be improved by the development of a blood test. However, the suboptimal detection abilities of blood tests for advanced neoplasia, including advanced adenoma (AA) and CRC, limit their application. We aimed to investigate the proteomic landscape of small extracellular vesicles (sEVs) from the serum of patients with colorectal neoplasia and identify specific sEV proteins that could serve as biomarkers for early diagnosis. Materials and Methods We enrolled 100 patients including 13 healthy subjects, 12 non-AAs, 13 AAs, and 16 stage-I, 15 stage-II, 16 stage-III, and 15 stage-IV CRCs. These patients were classified as normal control, early neoplasia, and advanced neoplasia. The sEV proteome was explored by liquid chromatography-tandem mass spectrometry. Generalized association plots were used to integrate the clustering methods, visualize the data matrix, and analyze the relationship. The specific sEV biomarkers were identified by a decision tree via Orange3 software. Functional enrichment analysis was conducted by using the Ingenuity Pathway Analysis platform. Results The sEV protein matrix was identified from the serum of 100 patients and contained 3353 proteins, of which 1921 proteins from 98 patients were finally analyzed. Compared with the normal control, subjects with early and advanced neoplasia exhibited a distinct proteomic distribution in the data matrix plot. Six sEV proteins were identified, namely, GCLM, KEL, APOF, CFB, PDE5A, and ATIC, which properly distinguished normal control, early neoplasia, and advanced neoplasia patients from each other. Functional enrichment analysis revealed that APOF+ and CFB+ sEV associated with clathrin-mediated endocytosis signaling and the complement system, which have critical implications for CRC carcinogenesis. Conclusion Patients with colorectal neoplasia had a distinct sEV proteome expression pattern in serum compared with those patients who were healthy and did not have neoplasms. Moreover, the six identified specific sEV proteins had the potential to discriminate colorectal neoplasia between early-stage and advanced neoplasia. Collectively, our study provided a six-sEV protein biomarker panel for CRC diagnosis at early or advanced stages. Furthermore, the implication of the sEV proteome in CRC carcinogenesis via specific signaling pathways was explored.
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Affiliation(s)
- Li-Chun Chang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.,Health Management Center, National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Chiung Hsu
- Department of Biomedical Science and Engineering, National Central University, Taoyuan, Taiwan
| | - Han-Mo Chiu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.,Health Management Center, National Taiwan University Hospital, Taipei, Taiwan
| | - Koji Ueda
- Cancer Precision Medicine Center, Japanese Foundation of Cancer Research, Tokyo, Japan
| | - Ming-Shiang Wu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chiun-How Kao
- Department of Statistics, Tamkang University, New Taipei City, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan.,Center for Biotechnology, National Taiwan University, Taipei, Taiwan.,Genome and Systems Biology Degree Program, National Taiwan University, Taipei, Taiwan
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Shen SR, Chen WJ, Chu HF, Wu SH, Wang YR, Shen TL. Amelioration of 5-fluorouracil-induced intestinal mucositis by Streptococcus thermophilus ST4 in a mouse model. PLoS One 2021; 16:e0253540. [PMID: 34310611 PMCID: PMC8312939 DOI: 10.1371/journal.pone.0253540] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 06/07/2021] [Indexed: 01/11/2023] Open
Abstract
Intestinal mucositis is a commonly encountered toxic side effect in patients undergoing 5-fluorouracil (5-FU)-based chemotherapy. Numerous studies have shown that probiotics enable improving chemotherapy-induced intestinal mucositis, but the beneficial effects of probiotics differ depending on the strain. Therefore, in the present studies we suggest that S. thermophilus ST4 separated from raw milk may assess mucoprotective activity in 5-FU-induced intestinal mucositis. In our causal-comparative study design, fifteen mice were randomized assigned into three groups (n = 5/each group): control group, 5-FU group and 5-FU+S. thermophilus ST4 group. The control group was orally administrated saline only, and the 5-FU group was followed by intraperitoneal injection of 5-FU for 3 days after 10-day saline administration, and the 5-FU+S. thermophilus ST4 group was intragastrically subjected for S. thermophilus ST4 once per day during the whole experiment, starting from the first day of the experiment, followed by 5-FU intraperitoneal injection for 3 days after 10-day S. thermophilus ST4 pretreatment. Diarrhea score, pro-inflammatory cytokines serum levels, intestinal histopathology and short chain fatty acid were assessed. Here, we demonstrated the beneficial effects of S. thermophilus ST4 derived from raw milk against 5-FU-induced intestinal mucositis, including body weight reduction, appetite loss and diarrhea. Intrinsically, S. thermophilus ST4 effectively maintained epithelium structure in small intestines and colons as well as reduced the intestinal inflammation. Besides, S. thermophilus ST4 significantly increased the expression of acetic acid, reinforcing the muco-protective effects. In conclusion, our results demonstrate that S. thermophilus ST4 supplementation ameliorates 5-FU-induced intestinal mucositis. This suggests probiotic may serve as an alternative therapeutic strategy for the prevention or management of 5-FU-induced mucositis in the future.
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Affiliation(s)
- Siou-Ru Shen
- Center for Biotechnology, National Taiwan University, Taipei, Taiwan
- Syngen Biotech Co., Ltd., Tainan, Taiwan
| | - Wei-Jen Chen
- Syngen Biotech Co., Ltd., Tainan, Taiwan
- Graduate Institute of Management, Minghsin University of Science and Technology, Hsinchu, Taiwan
| | | | | | - Yu-Ru Wang
- Center for Biotechnology, National Taiwan University, Taipei, Taiwan
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Tang-Long Shen
- Center for Biotechnology, National Taiwan University, Taipei, Taiwan
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
- * E-mail:
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Tsai I, Chung CL, Lin SR, Hung TH, Shen TL, Hu CY, Hozzein WN, Ariyawansa HA. Cryptic Diversity, Molecular Systematics, and Pathogenicity of Genus Pestalotiopsis and Allied Genera Causing Gray Blight Disease of Tea in Taiwan, With a Description of a New Pseudopestalotiopsis Species. Plant Dis 2021; 105:425-443. [PMID: 32720884 DOI: 10.1094/pdis-05-20-1134-re] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Camellia sinensis (L.) O. Kuntze, commonly known as tea, is widely cultivated around the world in tropical and subtropical areas. Tea is mainly manufactured using young shoots of tea plants. Therefore, it is essential to control foliar diseases. Gray blight disease is caused by pestalotiopsis-like taxa and is known as one of the most destructive tea diseases. Although several studies have provided the groundwork for the fungal diseases associated with C. sinensis in Taiwan, gray blight disease has not been characterized based on diversity, molecular systematics, or pathogenicity. The goal of this study was to identify and characterize the causative agents of tea gray blight disease. A total of 98 pestalotiopsis-like isolates associated with symptomatic leaves of C. sinensis from major tea fields in Taiwan were investigated. Based on phylogenies of single and concatenated DNA sequences (internal transcribed spacer, β-tubulin, translation elongation factor 1-α) together with morphology, we resolved most of the pestalotiopsis-like species in this study. The study revealed seven well-classified taxa and seven tentative clades in three genera: Pestalotiopsis, Pseudopestalotiopsis, and Neopestalotiopsis. One novel species, Pseudopestalotiopsis annellata, was introduced. Five new records, Pseudopestalotiopsis chinensis, Pseudopestalotiopsis camelliae-sinensis, Pestalotiopsis camelliae, Pestalotiopsis yanglingensis, and Pestalotiopsis trachicarpicola, were introduced for the first time in Taiwan. Pseudopestalotiopsis chinensis was the taxon most frequently isolated from C. sinensis in this study. Furthermore, results of pathogenicity assessments exhibited that, with wound inoculation, all assayed isolates in this study were pathogenic on tea leaves. Pseudopestalotiopsis chinensis and Pseudopestalotiopsis camelliae-sinensis were identified as the major pathogens associated with gray blight disease of tea in Taiwan. To our knowledge, this is the first study of the diversity, pathogenicity, and characterization of pestalotiopsis-like fungi causing tea gray blight disease in Taiwan.
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Affiliation(s)
- Ichen Tsai
- Department of Plant Pathology and Microbiology, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan
| | - Chia-Lin Chung
- Department of Plant Pathology and Microbiology, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan
| | - Shiou-Ruei Lin
- Department of Tea Agronomy, Tea Research and Extension Station, Taoyuan 32654, Taiwan
| | - Ting-Hsuan Hung
- Department of Plant Pathology and Microbiology, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan
- Centre for Biotechnology, National Taiwan University, Taipei 10672, Taiwan
- Institute of Biomedical Sciences, Chinese Medical University, Taichung 40402, Taiwan
| | - Chih-Yi Hu
- Department of Tea Agronomy, Tea Research and Extension Station, Taoyuan 32654, Taiwan
| | - Wael N Hozzein
- Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
- Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Hiran A Ariyawansa
- Department of Plant Pathology and Microbiology, College of Bioresources and Agriculture, National Taiwan University, Taipei 10617, Taiwan
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Chiang JC, Chen WM, Lin KH, Hsia K, Ho YH, Lin YC, Shen TL, Lu JH, Chen SK, Yao CL, Chen BPC, Lee H. Lysophosphatidic acid receptors 2 and 3 regulate erythropoiesis at different hematopoietic stages. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1866:158818. [PMID: 33035680 DOI: 10.1016/j.bbalip.2020.158818] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 09/17/2020] [Accepted: 09/23/2020] [Indexed: 12/13/2022]
Abstract
Hematopoiesis, the complex developmental process that forms blood components and replenishes the blood system, involves multiple intracellular and extracellular mechanisms. We previously demonstrated that lysophosphatidic acid (LPA), a lipid growth factor, has opposing regulatory effects on erythrocyte differentiation through activation of LPA receptors 2 and 3; yet the mechanisms underlying this process remain unclear. In this study, LPA2 is observed that highly expressed in common myeloid progenitors (CMP) in murine myeloid cells, whereas the expression of LPA3 displaces in megakaryocyte-erythroid progenitors (MEP) of later stage of myeloid differentiation. Therefore, we hypothesized that the switching expression of LPA2 and LPA3 determine the hematic homeostasis of mammalian megakaryocytic-erythroid lineage. In vitro colony-forming unit assays of murine progenitors reveal that LPA2 agonist GRI reduces the erythroblast differentiation potential of CMP. In contrast, LPA3 agonist OMPT increases the production of erythrocytes from megakaryocyte-erythrocyte progenitor cells (MEP). In addition, treatment with GRI reduces the erythroid, CMP, and MEP populations in mice, indicating that LPA2 predominantly inhibits myeloid differentiation at an early stage. In contrast, activation of LPA3 increases the production of terminally differentiated erythroid cells through activation of erythropoietic transcriptional factor. We also demonstrate that the LPA3 signaling is essential for restoration of phenylhydrazine (PHZ)-induced acute hemolytic anemia in mice and correlates to erythropoiesis impairment of Hutchinson-Gilford progeria Symptom (HGPS) premature aging expressed K562 model. Our results reveal the distinct roles of LPA2 and LPA3 at different stages of hematopoiesis in vivo, providing potentiated therapeutic strategies of anemia treatment.
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Affiliation(s)
- Jui-Chung Chiang
- Department of Life Science, National Taiwan University, Taipei, Taiwan; Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Wei-Min Chen
- Department of Life Science, National Taiwan University, Taipei, Taiwan; Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Kuan-Hung Lin
- Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Kai Hsia
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ya-Hsuan Ho
- Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute and Department of Haematology, University of Cambridge, Cambridge, United Kingdom
| | - Yueh-Chien Lin
- Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan; Center for Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Jen-Her Lu
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Surgery, Medicine & Pediatrics, School of Medicine, National Defense Medical Center, Taipei, Taiwan; Department of Pediatrics, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Shih-Kuo Chen
- Department of Life Science, National Taiwan University, Taipei, Taiwan; Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan
| | - Chao-Ling Yao
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan
| | - Benjamin P C Chen
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
| | - Hsinyu Lee
- Department of Life Science, National Taiwan University, Taipei, Taiwan; Center for Biotechnology, National Taiwan University, Taipei, Taiwan; Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan; Angiogenesis Research Center, National Taiwan University, Taipei, Taiwan; Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan.
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9
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Tai YL, Lin CJ, Li TK, Shen TL, Hsieh JT, Chen BPC. The role of extracellular vesicles in prostate cancer with clinical applications. Endocr Relat Cancer 2020; 27:R133-R144. [PMID: 32203935 DOI: 10.1530/erc-20-0021] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 03/23/2020] [Indexed: 11/08/2022]
Abstract
In mammalian cells, extracellular vesicles (EVs) derived from the endosomal system carry many different kinds of bioactive molecule to deliver to recipient cells in a paracrine or endocrine manner. EVs can mediate local and systemic intercellular communications, including reeducating stromal cells, remodeling the architecture of the tumor microenvironment, modulating cancer metabolism and metastases, or even conferring drug resistance. Because the molecular and functional characteristics of prostate cancer (PCa) evolve over time, the bioactive molecule profiles/signatures of tumor-derived EVs (TDEs) reflect the real-time status of cancer cells. TDEs appear to be valuable diagnostic and prognostic biomarkers as well as potential therapeutic vehicles, suggesting their essential role in precision medicine of disease management. We summarized critical aspects of TDEs in PCa and discussed their potential clinical applications.
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Affiliation(s)
- Yu-Ling Tai
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Chun-Jung Lin
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Tsai-Kun Li
- Department and Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Jer-Tsong Hsieh
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Benjamin P C Chen
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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10
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Gao YL, Wang YJ, Chung HH, Chen KC, Shen TL, Hsu CC. Molecular networking as a dereplication strategy for monitoring metabolites of natural product treated cancer cells. Rapid Commun Mass Spectrom 2020; 34 Suppl 1:e8549. [PMID: 31411772 DOI: 10.1002/rcm.8549] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 07/16/2019] [Accepted: 08/06/2019] [Indexed: 06/10/2023]
Abstract
RATIONALE Natural products have been great sources for drug discovery. However, the structures of natural products are diverse and difficult to elucidate. Cordyceps militaris is a parasitic fungus which usually grows on host insects. The metabolites of C. militaris have been reported to act as chemotherapeutic agents. In this study, we aimed for the structural elucidation of specialized metabolites derived from C. militaris, and the metabolic impact in leukemia cells. METHODS We describe a liquid chromatography data-dependent mass spectrometric platform combining tandem mass analysis and molecular networking. Leukemia cells treated with C. militaris extract and control groups were visualized in terms of their metabolic profiles using Global Natural Product Social (GNPS) molecular networking. By this method, we were able to elucidate the structures of metabolites from medicinal fungus extracts and cancer cells and then to recognize their changes in a semi-quantitative manner. RESULTS Using C. militaris and leukemia cells as examples, we found that approximately 100 new ion species were present in the treated leukemia cells, suggesting a highly altered metabolic profile. Specifically, based on the tandem mass spectral similarity, we proposed that cordycepin, a key fungus-derived therapeutic agent known for its antitumor activity, was transformed into its methylthio form in leukemia cells. CONCLUSIONS The platform described provides an ability to investigate complex molecular interactions of natural products in mammalian cells. By incorporating tandem mass spectrometry and molecular networking, we were able to reveal the chemical modification of crude bioactive compounds, for example potential bioactive compounds which might be modified from cordycepin. We envision that such a mass spectrometry (MS)-based workflow, combined with other metabolomics platforms, would enable much wider applicability to cell biology and be of great potential to pharmacological study as well as drug discovery.
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Affiliation(s)
- Yi-Ling Gao
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan
| | - Ying-Jing Wang
- Department of Plant Pathology and Microbiology and Center for Biotechnology, National Taiwan University, Taipei, 10617, Taiwan
| | - Hsin-Hsiang Chung
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan
| | - Ko-Chien Chen
- Department of Plant Pathology and Microbiology and Center for Biotechnology, National Taiwan University, Taipei, 10617, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology and Center for Biotechnology, National Taiwan University, Taipei, 10617, Taiwan
| | - Cheng-Chih Hsu
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan
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11
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Hung IC, Chen TM, Lin JP, Tai YL, Shen TL, Lee SJ. Correction to 'Wnt5b integrates Fak1a to mediate gastrulation cell movements via Rac1 and Cdc42'. Open Biol 2020; 10:200058. [PMID: 32183619 PMCID: PMC7125960 DOI: 10.1098/rsob.200058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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12
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Abstract
Abstract
Microorganisms have the remarkable capacity to develop resistance to antimicrobial agents. This is of particular concern for fungal pathogens which cause devastating invasive infections with limited treatment options. Thus the need for new antifungal agents is undeniable. This work presents the antifungal properties of four surfactant groups, namely two groups of sulfobetaines and two groups of quaternary ammonium compounds, all morpholine and piperidine derivatives, against drug susceptible or drug resistant Candida albicans and Cryptococcus neoformans. The values of minimum inhibitory and fungicidal concentrations were determined. As follows from the results, the activities of the obtained compounds differed, however the most active agents from each homologous series of compounds, such as P16S3, P16S4 and C16S3, were pointed out.
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Affiliation(s)
- Daria Wieczorek
- Department of Technology and Instrumental Analysis , Faculty of Commodity Science, Poznan , Poland
| | - Dobrawa Kwaśniewska
- Department of Technology and Instrumental Analysis , Faculty of Commodity Science, Poznan , Poland
| | - Li-Hang Hsu
- Department of Plant Pathology and Microbiology , National Taiwan University, Taipei , Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology , National Taiwan University, Taipei , Taiwan
| | - Ying-Lien Chen
- Department of Plant Pathology and Microbiology , National Taiwan University, Taipei , Taiwan
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13
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Abstract
Focal adhesion kinase (FAK) mediates vital cellular pathways during development. Despite its necessity, how FAK regulates and integrates with other signals during early embryogenesis remains poorly understood. We found that the loss of Fak1a impaired epiboly, convergent extension and hypoblast cell migration in zebrafish embryos. We also observed a clear disturbance in cortical actin at the blastoderm margin and distribution of yolk syncytial nuclei. In addition, we investigated a possible link between Fak1a and a well-known gastrulation regulator, Wnt5b, and revealed that the overexpression of fak1a or wnt5b could cross-rescue convergence defects induced by a wnt5b or fak1a antisense morpholino (MO), respectively. Wnt5b and Fak1a were shown to converge in regulating Rac1 and Cdc42, which could synergistically rescue wnt5b and fak1a morphant phenotypes. Furthermore, we generated several alleles of fak1a mutants using CRISPR/Cas9, but those mutants only revealed mild gastrulation defects. However, injection of a subthreshold level of the wnt5b MO induced severe gastrulation defects in fak1a mutants, which suggested that the upregulated expression of wnt5b might complement the loss of Fak1a. Collectively, we demonstrated that a functional interaction between Wnt and FAK signalling mediates gastrulation cell movements via the possible regulation of Rac1 and Cdc42 and subsequent actin dynamics.
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Affiliation(s)
- I-Chen Hung
- Department of Life Science, National Taiwan University, No. 1, Roosevelt Road, Section 4, Taipei 10617, Taiwan
| | - Tsung-Ming Chen
- Department of Life Science, National Taiwan University, No. 1, Roosevelt Road, Section 4, Taipei 10617, Taiwan.,Department of Plant Pathology and Microbiology, National Taiwan University, No. 1, Roosevelt Road, Section 4, Taipei 10617, Taiwan.,Department and Graduate Institute of Aquaculture, National Kaohsiung Marine University, Kaohsiung, Taiwan
| | - Jing-Ping Lin
- Department of Plant Pathology and Microbiology, National Taiwan University, No. 1, Roosevelt Road, Section 4, Taipei 10617, Taiwan
| | - Yu-Ling Tai
- Department of Plant Pathology and Microbiology, National Taiwan University, No. 1, Roosevelt Road, Section 4, Taipei 10617, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, No. 1, Roosevelt Road, Section 4, Taipei 10617, Taiwan.,Center for Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Shyh-Jye Lee
- Department of Life Science, National Taiwan University, No. 1, Roosevelt Road, Section 4, Taipei 10617, Taiwan.,Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan.,Center for Biotechnology, National Taiwan University, Taipei, Taiwan.,Center for Systems Biology, National Taiwan University, Taipei, Taiwan
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14
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Hsu LH, Kwaśniewska D, Wang SC, Shen TL, Wieczorek D, Chen YL. Gemini quaternary ammonium compound PMT12-BF4 inhibits Candida albicans via regulating iron homeostasis. Sci Rep 2020; 10:2911. [PMID: 32076050 PMCID: PMC7031538 DOI: 10.1038/s41598-020-59750-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 11/03/2019] [Accepted: 01/30/2020] [Indexed: 01/23/2023] Open
Abstract
Quaternary ammonium compounds (QACs) are classified as cationic surfactants, and are known for their biocidal activity. However, their modes of action are thus far not completely understood. In this study, we synthesized a gemini QAC, PMT12-BF4 and found that it exerted unsurpassed broad-spectrum antifungal activity against drug susceptible and resistant Candida albicans, and other pathogenic fungi, with a minimal inhibitory concentration (MIC) at 1 or 2 μg/mL. These results indicated that PMT12-BF4 used a mode of action distinct from current antifungal drugs. In addition, fungal pathogens treated with PMT12-BF4 were not able to grow on fresh YPD agar plates, indicating that the effect of PMT12-BF4 was fungicidal, and the minimal fungicidal concentration (MFC) against C. albicans isolates was 1 or 2 μg/mL. The ability of yeast-to-hyphal transition and biofilm formation of C. albicans was disrupted by PMT12-BF4. To investigate the modes of action of PMT12-BF4 in C. albicans, we used an RNA sequencing approach and screened a C. albicans deletion mutant library to identify potential pathways affected by PMT12-BF4. Combining these two approaches with a spotting assay, we showed that the ability of PMT12-BF4 to inhibit C. albicans is potentially linked to iron ion homeostasis.
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Affiliation(s)
- Li-Hang Hsu
- Department of Plant Pathology and Microbiology, National Taiwan University, 10617, Taipei, Taiwan
| | - Dobrawa Kwaśniewska
- Department of Technology and Instrumental Analysis, Poznan University of Economics and Business, Poznan, Poland
| | - Shih-Cheng Wang
- Department of Plant Pathology and Microbiology, National Taiwan University, 10617, Taipei, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, 10617, Taipei, Taiwan
| | - Daria Wieczorek
- Department of Technology and Instrumental Analysis, Poznan University of Economics and Business, Poznan, Poland.
| | - Ying-Lien Chen
- Department of Plant Pathology and Microbiology, National Taiwan University, 10617, Taipei, Taiwan.
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15
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Lin LE, Chen CL, Huang YC, Chung HH, Lin CW, Chen KC, Peng YJ, Ding ST, Wang MY, Shen TL, Hsu CC. Precision biomarker discovery powered by microscopy image fusion-assisted high spatial resolution ambient ionization mass spectrometry imaging. Anal Chim Acta 2019; 1100:75-87. [PMID: 31987155 DOI: 10.1016/j.aca.2019.11.014] [Citation(s) in RCA: 18] [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: 08/15/2019] [Revised: 10/27/2019] [Accepted: 11/11/2019] [Indexed: 12/30/2022]
Abstract
Mass spectrometry imaging (MSI) using the ambient ionization technique enables a direct chemical investigation of biological samples with minimal sample pretreatment. However, detailed morphological information of the sample is often lost due to its limited spatial resolution. In this study, predictive high-resolution molecular imaging was produced by the fusion of ambient ionization MSI with optical microscopy of routine hematoxylin and eosin (H&E) staining. Specifically, desorption electrospray ionization (DESI) and nanospray desorption electrospray ionization (nanoDESI) mass spectrometry were employed to visualize lipid and protein species on mice tissue sections. The resulting molecular distributions obtained by ambient ionization MSI-microscopy fusion were verified with matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) MSI and immunohistochemistry (IHC) staining. Label-free molecular imaging with 5-μm spatial resolution can be acquired using DESI and nanoDESI, whereas the typical spatial resolution of ambient ionization MSI was ∼100 μm. In this regard, sharpened molecular histology of tissue sections was achieved, providing complementary references to the pathology. Such a multi-modal integration enables the discovery of potential tumor biomarkers. After image fusion, more than a dozen potential biomarkers on a metastatic mouse lung tissue section and Luminal B breast tumor tissue section were identified.
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Affiliation(s)
- Li-En Lin
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan
| | - Chih-Lin Chen
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan
| | - Ying-Chen Huang
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan
| | - Hsin-Hsiang Chung
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan
| | - Chiao-Wei Lin
- Department of Animal Science and Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan
| | - Ko-Chien Chen
- Department of Plant Pathology and Microbiology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan
| | - Yu-Ju Peng
- Department of Animal Science and Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan
| | - Shih-Torng Ding
- Department of Animal Science and Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan
| | - Ming-Yang Wang
- National Taiwan University Hospital, No.7, Zhong Shan South Rd., Taipei, 10002, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan
| | - Cheng-Chih Hsu
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan.
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16
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Lin CJ, Yun EJ, Lo UG, Tai YL, Deng S, Hernandez E, Dang A, Chen YA, Saha D, Mu P, Lin H, Li TK, Shen TL, Lai CH, Hsieh JT. The paracrine induction of prostate cancer progression by caveolin-1. Cell Death Dis 2019; 10:834. [PMID: 31685812 PMCID: PMC6828728 DOI: 10.1038/s41419-019-2066-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [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: 05/05/2019] [Revised: 10/02/2019] [Accepted: 10/16/2019] [Indexed: 12/21/2022]
Abstract
A subpopulation of cancer stem cells (CSCs) plays a critical role of cancer progression, recurrence, and therapeutic resistance. Many studies have indicated that castration-resistant prostate cancer (CRPC) is associated with stem cell phenotypes, which could further promote neuroendocrine transdifferentiation. Although only a small subset of genetically pre-programmed cells in each organ has stem cell capability, CSCs appear to be inducible among a heterogeneous cancer cell population. However, the inductive mechanism(s) leading to the emergence of these CSCs are not fully understood in CRPC. Tumor cells actively produce, release, and utilize exosomes to promote cancer development and metastasis, cancer immune evasion as well as chemotherapeutic resistance; the impact of tumor-derived exosomes (TDE) and its cargo on prostate cancer (PCa) development is still unclear. In this study, we demonstrate that the presence of Cav-1 in TDE acts as a potent driver to induce CSC phenotypes and epithelial–mesenchymal transition in PCa undergoing neuroendocrine differentiation through NFκB signaling pathway. Furthermore, Cav-1 in mCRPC-derived exosomes is capable of inducing radio- and chemo-resistance in recipient cells. Collectively, these data support Cav-1 as a critical driver for mCRPC progression.
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Affiliation(s)
- Chun-Jung Lin
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Eun-Jin Yun
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA.,Division of Integrative Bioscience and Biotechnology, POSTECH, Pohang, 37673, Republic of Korea
| | - U-Ging Lo
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Yu-Ling Tai
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA.,Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Su Deng
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Elizabeth Hernandez
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Andrew Dang
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Yu-An Chen
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Debabrata Saha
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Ping Mu
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Ho Lin
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Tsai-Kun Li
- Department and Graduate Institute of Microbiology, National Taiwan University, Taipei, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Chih-Ho Lai
- Department of Microbiology and Immunology, Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Jer-Tsong Hsieh
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA. .,Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan.
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17
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Wu PY, Yu IS, Lin YC, Chang YT, Chen CC, Lin KH, Tseng TH, Kargren M, Tai YL, Shen TL, Liu YL, Wang BJ, Chang CH, Chen WM, Juan HF, Huang SF, Chan YY, Liao YF, Hsu WM, Lee H. Activation of Aryl Hydrocarbon Receptor by Kynurenine Impairs Progression and Metastasis of Neuroblastoma. Cancer Res 2019; 79:5550-5562. [PMID: 31431462 DOI: 10.1158/0008-5472.can-18-3272] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 04/08/2019] [Accepted: 08/14/2019] [Indexed: 11/16/2022]
Abstract
Neuroblastoma is the most common malignant disease of infancy, and amplification of the MYCN oncogene is closely associated with poor prognosis. Recently, expression of MYCN was shown to be inversely correlated with aryl hydrocarbon receptor (AHR) expression in neuroblastoma, and overexpression of AHR downregulated MYCN expression, promoting cell differentiation. Therefore, we further investigated the potential of AHR to serve as a prognostic indicator or a therapeutic target in neuroblastoma. First, the clinical significance of AHR in neuroblastoma was examined. Positive AHR immunostaining strongly correlated with differentiated histology of neuroblastoma and predicted better survival for patients. The mouse xenograft model showed that overexpression of AHR significantly suppressed neuroblastoma tumor growth. In addition, activation of AHR by the endogenous ligand kynurenine inhibited cell proliferation and promoted cell differentiation in vitro and in vivo. kynurenine treatment also upregulated the expression of KISS1, a tumor metastasis suppressor, and attenuated metastasis in the xenograft model. Finally, analysis of KISS1 levels in neuroblastoma patient tumors using the R2: Genomics Analysis and Visualization Platform revealed that KISS1 expression positively correlated with AHR, and high KISS1 expression predicted better survival for patients. In conclusion, our results indicate that AHR is a novel prognostic biomarker for neuroblastoma, and that overexpression or activation of AHR offers a new therapeutic possibility for patients with neuroblastoma. SIGNIFICANCE: These findings show that AHR may function as a tumor suppressor in childhood neuroblastoma, potentially influencing the aetiologic and therapeutic targeting of the disease.
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Affiliation(s)
- Pei-Yi Wu
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - I-Shing Yu
- Laboratory Animal Center, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yueh-Chien Lin
- Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Yu-Tzu Chang
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Chien-Chin Chen
- Department of Pathology, Chia-Yi Christian Hospital, Chiayi, Taiwan.,Department of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Kuan-Hung Lin
- Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Tzu-Hsuan Tseng
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Mati Kargren
- Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Yu-Ling Tai
- Department of Plant Pathology and Microbiology & Center for Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology & Center for Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Yen-Lin Liu
- Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan
| | - Bo-Jeng Wang
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Chi-Hao Chang
- Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Wei-Min Chen
- Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Hsueh-Fen Juan
- Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Shiu-Feng Huang
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Miaoli County, Taiwan
| | - Ya-Yun Chan
- Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Yung-Feng Liao
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan.,Department of Life Science, National Taiwan University, Taipei, Taiwan
| | - Wen-Ming Hsu
- Department of Surgery, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.
| | - Hsinyu Lee
- Department of Life Science, National Taiwan University, Taipei, Taiwan.
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18
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Kuo TH, Chung HH, Chang HY, Lin CW, Wang MY, Shen TL, Hsu CC. Deep Lipidomics and Molecular Imaging of Unsaturated Lipid Isomers: A Universal Strategy Initiated by mCPBA Epoxidation. Anal Chem 2019; 91:11905-11915. [DOI: 10.1021/acs.analchem.9b02667] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | | | | | | | - Ming-Yang Wang
- National Taiwan University Hospital and College of Medicine, Taipei 100, Taiwan
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19
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Tai YL, Chu PY, Lee BH, Chen KC, Yang CY, Kuo WH, Shen TL. Basics and applications of tumor-derived extracellular vesicles. J Biomed Sci 2019; 26:35. [PMID: 31078138 PMCID: PMC6511661 DOI: 10.1186/s12929-019-0533-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [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: 02/27/2019] [Accepted: 05/07/2019] [Indexed: 02/07/2023] Open
Abstract
Extracellular vesicle (EV)-mediated intercellular communication acts as a critical culprit in cancer development. The selective packaging of oncogenic molecules renders tumor-derived EVs capable of altering the tumor microenvironment and thereby modulating cancer developments that may contribute to drug resistance and cancer recurrence. Moreover, the molecular and functional characteristics of cancer through its development and posttreatment evolve over time. Tumor-derived EVs are profoundly involved in this process and can, therefore, provide valuable real-time information to reflect dynamic changes occurring within the body. Because they bear unique molecular profiles or signatures, tumor-derived EVs have been highlighted as valuable diagnostic and predictive biomarkers as well as novel therapeutic targets. In addition, the use of an advanced EV-based drug delivery system for cancer therapeutics has recently been emphasized in both basic and clinical studies. In this review, we highlight comprehensive aspects of tumor-derived EVs in oncogenic processes and their potential clinical applications.
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Affiliation(s)
- Yu-Ling Tai
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan.,Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Pei-Yu Chu
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Bao-Hong Lee
- Division of Hematology and Oncology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Ko-Chien Chen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Chia-Yu Yang
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Wen-Hung Kuo
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan. .,Center for Biotechnology, National Taiwan University, Taipei, Taiwan.
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20
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Chu PY, Tai YL, Shen TL. Grb7, a Critical Mediator of EGFR/ErbB Signaling, in Cancer Development and as a Potential Therapeutic Target. Cells 2019; 8:cells8050435. [PMID: 31083325 PMCID: PMC6562560 DOI: 10.3390/cells8050435] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [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: 03/30/2019] [Revised: 05/02/2019] [Accepted: 05/09/2019] [Indexed: 12/20/2022] Open
Abstract
The partner of activated epidermal growth factor receptor (EGFR), growth factor receptor bound protein-7 (Grb7), a functionally multidomain adaptor protein, has been demonstrated to be a pivotal regulator for varied physiological and pathological processes by interacting with phospho-tyrosine-related signaling molecules to affect the transmission through a number of signaling pathways. In particular, critical roles of Grb7 in erythroblastic leukemia viral oncogene homolog (ERBB) family-mediated cancer development and malignancy have been intensively evaluated. The overexpression of Grb7 or the coamplification/cooverexpression of Grb7 and members of the ERBB family play essential roles in advanced human cancers and are associated with decreased survival and recurrence of cancers, emphasizing Grb7's value as a prognostic marker and a therapeutic target. Peptide inhibitors of Grb7 are being tested in preclinical trials for their possible therapeutic effects. Here, we review the molecular, functional, and clinical aspects of Grb7 in ERBB family-mediated cancer development and malignancy with the aim to reveal alternative and effective therapeutic strategies.
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Affiliation(s)
- Pei-Yu Chu
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei 10617, Taiwan.
| | - Yu-Ling Tai
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei 10617, Taiwan.
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei 10617, Taiwan.
- Center for Biotechnology, National Taiwan University, Taipei 10617, Taiwan.
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21
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Abstract
Artificial intelligence is a man-made device that simulates intellectual work such as human thinking and judgment. There are many successful applications of artificial intelligence in the fields of medicine, healthcare, agriculture, education, finance, service, news and machinery. Intelligent computer hospital management systems, intelligent medical diagnostic expert systems and intelligent surgical robots have revolutionized the medical field. Therefore, the attentions which are paid to artificial intelligence in cancer diagnosis and cancer treatment are on the rise. Some breakthroughs have also been made in the application of imaging diagnosis, pathological diagnosis, oncology surgery, oncology radiotherapy, drug development and cancer screening. Artificial intelligence is gradually changing the traditional medical model, which is a future direction and trend of human medical development. Here, we delineate the concept and development of artificial intelligence, and its application and prospect in the diagnosis and treatment of malignant tumors.
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Affiliation(s)
- T L Shen
- Department of Radiotherapy, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - X L Fu
- Department of Radiotherapy, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
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22
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Lin YC, Chen CC, Chen WM, Lu KY, Shen TL, Jou YC, Shen CH, Ohbayashi N, Kanaho Y, Huang YL, Lee H. LPA 1/3 signaling mediates tumor lymphangiogenesis through promoting CRT expression in prostate cancer. Biochim Biophys Acta Mol Cell Biol Lipids 2018; 1863:1305-1315. [PMID: 30053596 DOI: 10.1016/j.bbalip.2018.07.005] [Citation(s) in RCA: 18] [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: 02/26/2018] [Revised: 07/13/2018] [Accepted: 07/20/2018] [Indexed: 12/15/2022]
Abstract
Lysophosphatidic acid (LPA) is a bioactive lipid growth factor which is present in high levels in serum and platelets. LPA binds to its specific G-protein-coupled receptors, including LPA1 to LPA6, thereby regulating various physiological functions, including cancer growth, angiogenesis, and lymphangiogenesis. Our previous study showed that LPA promotes the expression of the lymphangiogenic factor vascular endothelial growth factor (VEGF)-C in prostate cancer (PCa) cells. Interestingly, LPA has been shown to regulate the expression of calreticulin (CRT), a multifunctional chaperone protein, but the roles of CRT in PCa progression remain unclear. Here we investigated the involvement of CRT in LPA-mediated VEGF-C expression and lymphangiogenesis in PCa. Knockdown of CRT significantly reduced LPA-induced VEGF-C expression in PC-3 cells. Moreover, LPA promoted CRT expression through LPA receptors LPA1 and LPA3, reactive oxygen species (ROS) production, and phosphorylation of eukaryotic translation initiation factor 2α (eIF2α). Tumor-xenografted mouse experiments further showed that CRT knockdown suppressed tumor growth and lymphangiogenesis. Notably, clinical evidence indicated that the LPA-producing enzyme autotaxin (ATX) is related to CRT and that CRT level is highly associated with lymphatic vessel density and VEGF-C expression. Interestingly, the pharmacological antagonist of LPA receptors significantly reduced the lymphatic vessel density in tumor and lymph node metastasis in tumor-bearing nude mice. Together, our results demonstrated that CRT is critical in PCa progression through the mediation of LPA-induced VEGF-C expression, implying that targeting the LPA signaling axis is a potential therapeutic strategy for PCa.
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Affiliation(s)
- Yueh-Chien Lin
- Department of Life Sciences, National Taiwan University, Taipei 10617, Taiwan; Department of Physiological Chemistry, Faculty of Medicine and Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Chien-Chin Chen
- Department of Pathology, Chia-Yi Christian Hospital, Chiayi 600, Taiwan; Department of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan 71710, Taiwan
| | - Wei-Min Chen
- Department of Life Sciences, National Taiwan University, Taipei 10617, Taiwan
| | - Kuan-Ying Lu
- Department of Life Sciences, National Taiwan University, Taipei 10617, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei 10617, Taiwan
| | - Yeong-Chin Jou
- Department of Urology, Chia-Yi Christian Hospital, Chiayi 600, Taiwan
| | - Cheng-Huang Shen
- Department of Urology, Chia-Yi Christian Hospital, Chiayi 600, Taiwan
| | - Norihiko Ohbayashi
- Department of Physiological Chemistry, Faculty of Medicine and Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Yasunori Kanaho
- Department of Physiological Chemistry, Faculty of Medicine and Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Yuan-Li Huang
- Department of Biotechnology, Asia University, Taichung 41354, Taiwan; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan.
| | - Hsinyu Lee
- Department of Life Sciences, National Taiwan University, Taipei 10617, Taiwan; Department of Electrical Engineering, National Taiwan University, Taipei 10617, Taiwan; Institute of Biomedical Electronic and Bioinformatics, National Taiwan University, Taipei 10617, Taiwan; Center for Biotechnology, National Taiwan University, Taipei 10617, Taiwan.
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Abstract
Exosomes participate in cancer progression and metastasis by transferring bioactive molecules between cancer and various cells in the local and distant microenvironments. Such intercellular cross‐talk results in changes in multiple cellular and biological functions in recipient cells. Several hallmarks of cancer have reportedly been impacted by this exosome‐mediated cell‐to‐cell communication, including modulating immune responses, reprogramming stromal cells, remodeling the architecture of the extracellular matrix, or even endowing cancer cells with characteristics of drug resistance. Selectively, loading specific oncogenic molecules into exosomes highlights exosomes as potential diagnostic biomarkers as well as therapeutic targets. In addition, exosome‐based drug delivery strategies in preclinical and clinical trials have been shown to dramatically decrease cancer development. In the present review, we summarize the significant aspects of exosomes in cancer development that can provide novel strategies for potential clinical applications.
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Affiliation(s)
- Yu-Ling Tai
- Department of Plant Pathology and Microbiology & Center for Biotechnology, National Taiwan University, Taipei, Taiwan.,Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ko-Chien Chen
- Department of Plant Pathology and Microbiology & Center for Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Jer-Tsong Hsieh
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, USA.,Institute of Biomedical Sciences, Chinese Medical University, Taichung, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology & Center for Biotechnology, National Taiwan University, Taipei, Taiwan.,Institute of Biomedical Sciences, Chinese Medical University, Taichung, Taiwan
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Peng YJ, Shen TL, Chen YS, Mersmann HJ, Liu BH, Ding ST. Adiponectin and adiponectin receptor 1 overexpression enhance inflammatory bowel disease. J Biomed Sci 2018; 25:24. [PMID: 29540173 PMCID: PMC5851065 DOI: 10.1186/s12929-018-0419-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [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: 11/20/2017] [Accepted: 02/06/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Adiponectin (ADN) is an adipokine derived from adipocytes. It binds to adiponectin receptor 1 and 2 (AdipoR1 and R2) to exert its function in regulating whole-body energy homeostasis and inflammatory responses. However, the role of ADN-AdipoR1 signaling in intestinal inflammation is controversial, and its role in the regulation of neutrophils is still unclear. Our goal was to clarify the role of AdipoR1 signaling in colitis and the effects on neutrophils. METHODS We generated porcine AdipoR1 transgenic mice (pAdipoR1 mice) and induced murine colitis using dextran sulfate sodium (DSS) to study the potential role of AdipoR1 in inflammatory bowel disease. We also treated a THP-1 macrophage and a HT-29 colon epithelial cell line with ADN recombinant protein to study the effects of ADN on inflammation. RESULTS After inducing murine colitis, pAdipoR1 mice developed more severe symptoms than wild-type (WT) mice. Treatment with ADN increased the expression of pro-inflammatory factors in THP-1 and HT-29 cells. Moreover, we also observed that the expression of cyclooxygenase2 (cox2), neutrophil chemokines (CXCL1, CXCL2 and CXCL5), and the infiltration of neutrophils were increased in the colon of pAdipoR1 mice. CONCLUSIONS Our study showed that ADN-AdipoR1 signaling exacerbated colonic inflammation through two possible mechanisms. First, ADN-AdipoR1 signaling increased pro-inflammatory factors. Second, AdipoR1 enhanced neutrophil chemokine expression and recruited neutrophils into the colonic tissue to increase inflammation.
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Affiliation(s)
- Yu-Ju Peng
- Department of Animal Science and Technology, National Taiwan University, No. 50, Ln. 155, Sec. 3, Keelung Rd., Da’an Dist, Taipei City, 10617 Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, No.1, Sec.4, Roosevelt Road, Taipei, 10617 Taiwan
| | - Yu-Shan Chen
- Department of Animal Science and Technology, National Taiwan University, No. 50, Ln. 155, Sec. 3, Keelung Rd., Da’an Dist, Taipei City, 10617 Taiwan
| | - Harry John Mersmann
- Department of Animal Science and Technology, National Taiwan University, No. 50, Ln. 155, Sec. 3, Keelung Rd., Da’an Dist, Taipei City, 10617 Taiwan
| | - Bing-Hsien Liu
- Department of Animal Science and Technology, National Taiwan University, No. 50, Ln. 155, Sec. 3, Keelung Rd., Da’an Dist, Taipei City, 10617 Taiwan
| | - Shih-Torng Ding
- Department of Animal Science and Technology, National Taiwan University, No. 50, Ln. 155, Sec. 3, Keelung Rd., Da’an Dist, Taipei City, 10617 Taiwan
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Tai YL, Tung LH, Lin YC, Lu PJ, Chu PY, Wang MY, Huang WP, Chen KC, Lee H, Shen TL. Grb7 Protein Stability Modulated by Pin1 in Association with Cell Cycle Progression. PLoS One 2016; 11:e0163617. [PMID: 27658202 PMCID: PMC5033455 DOI: 10.1371/journal.pone.0163617] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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: 02/14/2016] [Accepted: 09/12/2016] [Indexed: 12/16/2022] Open
Abstract
Growth factor receptor bound protein-7 (Grb7) is a multi-domain adaptor protein that is co-opted by numerous tyrosine kinases involved in various cellular signaling and functions. The molecular mechanisms underlying the regulation of Grb7 remain unclear. Here, we revealed a novel negative post-translational regulation of Grb7 by the peptidyl-prolyl cis/trans isomerase, Pin1. Our data show that phosphorylation of Grb7 protein on the Ser194-Pro motif by c-Jun N-terminal kinase facilitates its binding with the WW domain of Pin1. Subsequently, Grb7 is degraded by the ubiquitin- and proteasome-dependent proteolytic pathway. Indeed, we found that Pin1 exerts its peptidyl-prolyl cis/trans isomerase activity in the modulation of Grb7 protein stability in regulation of cell cycle progression at the G2-M phase. This study illustrates a novel regulatory mechanism in modulating Grb7-mediated signaling, which may take part in pathophysiological consequences.
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Affiliation(s)
- Yu-Ling Tai
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Li-Hsuan Tung
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Yu-Chi Lin
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Pei-Jung Lu
- Institute of Clinical Medicine, Medical College, National Cheng Kung University, Tainan, Taiwan
| | - Pei-Yu Chu
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
- Department of Genetics, Yale Stem Cell Center, Yale School of Medicine, Connecticut, United States of America
| | - Ming-Yang Wang
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Wei-Pang Huang
- Institute of Zoology, National Taiwan University, Taipei, Taiwan
| | - Ko-Chien Chen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Hsinyu Lee
- Institute of Zoology, National Taiwan University, Taipei, Taiwan
- Center for Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
- Center for Biotechnology, National Taiwan University, Taipei, Taiwan
- * E-mail:
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Huang CW, Hong TW, Wang YJ, Chen KC, Pei JC, Chuang TY, Lai WS, Tsai SH, Chu R, Chen WC, Sheen LY, Takahashi S, Ding ST, Shen TL. Ophiocordyceps formosana improves hyperglycemia and depression-like behavior in an STZ-induced diabetic mouse model. Altern Ther Health Med 2016; 16:310. [PMID: 27553852 PMCID: PMC4995616 DOI: 10.1186/s12906-016-1278-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [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: 12/25/2015] [Accepted: 08/11/2016] [Indexed: 12/27/2022]
Abstract
Background A newly defined Cordyceps species, Ophiocordyceps formosana (O. formosana) has been implicated in multitudinous bioactivities, including lowering glucose and cholesterol levels and modulating the immune system. However, few literatures demonstrate sufficient evidence to support these proposed functions. Although the use of Cordyceps spp. has been previously addressed to improve insulin insensitivity and improve the detrimental symptoms of depression; its mechanistic nature remains unsettled. Herein, we reveal the effects of O. formosana in ameliorating hyperglycemia accompanied with depression. Methods Diabetes was induced in mice by employing streptozotocin(STZ), a chemical that is toxic to insulin-producing β cells of the pancreas. These streptozotocin (STZ)-induced diabetic mice showed combined symptoms of hyperglycemia and depressive behaviors. Twenty-four STZ-induced mice were randomly divided into 3 groups subjected to oral gavage with 100 μL solution of either PBS or 25 mg/mL Ophiocordyceps formosana extract (OFE) or 2 mg/mL rosiglitazone (Rosi, positive control group). Treatments were administered once per day for 28 days. An additional 6 mice without STZ induction were treated with PBS to serve as the control group. Insulin sensitivity was measured by a glucose tolerance test and levels of adiponectin in plasma and adipose tissue were also quantified. Behavioral tests were conducted and levels of monoamines in various brain regions relating to depression were evaluated. Results HPLC analysis uncovered three major constituents, adenosine, D-mannitol and cordycepin, within O. formosana similar to other prestigious medicinal Cordyceps spp.. STZ-induced diabetic mice demonstrated decreased body weight and subcutaneous adipose tissue, while these symptoms were recovered in mice receiving OFE treatment. Moreover, the OFE group displayed improved insulin sensitivity and elevated adiponectin within the plasma and adipose tissue. The anti-depressive effect of OFE was observed in various depression-related behavior tests. Concurrently, neurotransmitters, like 5-HT and dopamine in the frontal cortex, striatum and hippocampus were found to be up-regulated in OFE-treated mice. Conclusions Our findings illustrated, for the first time, the medicinal merits of O. formosana on Type I diabetes and hyperglycemia-induced depression. OFE were found to promote the expression of adiponectin, which is an adipokine involved in insulin sensitivity and hold anti-depressive effects. In addition, OFE administration also displayed altered levels of neurotransmitters in certain brain regions that may have contributed to its anti-depressive effect. Collectively, this current study provided insights to the potential therapeutic effects of O. formosana extracts in regards to hyperglycemia and its depressive complications.
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Tai YL, Lai IR, Peng YJ, Ding ST, Shen TL. Activation of focal adhesion kinase through an interaction with β4 integrin contributes to tumorigenicity of colon cancer. FEBS Lett 2016; 590:1826-37. [PMID: 27178753 DOI: 10.1002/1873-3468.12215] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 01/21/2016] [Accepted: 05/09/2016] [Indexed: 01/05/2023]
Abstract
High expression of either β4 integrin or focal adhesion kinase (FAK) has been reported in human colon cancer. However, it remains unclear how β4 integrin together with FAK contributes to the tumorigenicity of colon cancer. Here, we demonstrate that the co-overexpression of β4 integrin and FAK positively correlates with advanced stages of human colon cancer. Activated β4 integrin interacts with FAK and subsequently induces FAK phosphorylation at Tyr397. Furthermore, ablation of the β4 integrin/FAK complex and/or FAK activation impair colon cancer cell proliferation, anchorage-independent growth, and tumorigenicity. Our data indicate that the β4 integrin/FAK complex and subsequent FAK activation are essential regulators during the tumorigenicity of colon cancer, and we suggest an alternative strategy for colon cancer therapy.
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Affiliation(s)
- Yu-Ling Tai
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - I-Rue Lai
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan.,Department of Anatomy and Cell Biology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yu-Ju Peng
- Department of Animal Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Shih-Torng Ding
- Department of Animal Science and Technology, National Taiwan University, Taipei, Taiwan.,Center for Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan.,Center for Biotechnology, National Taiwan University, Taipei, Taiwan
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Hoshino A, Costa-Silva B, Shen TL, Rodrigues G, Hashimoto A, Tesic Mark M, Molina H, Kohsaka S, Di Giannatale A, Ceder S, Singh S, Williams C, Soplop N, Uryu K, Pharmer L, King T, Bojmar L, Davies AE, Ararso Y, Zhang T, Zhang H, Hernandez J, Weiss JM, Dumont-Cole VD, Kramer K, Wexler LH, Narendran A, Schwartz GK, Healey JH, Sandstrom P, Labori KJ, Kure EH, Grandgenett PM, Hollingsworth MA, de Sousa M, Kaur S, Jain M, Mallya K, Batra SK, Jarnagin WR, Brady MS, Fodstad O, Muller V, Pantel K, Minn AJ, Bissell MJ, Garcia BA, Kang Y, Rajasekhar VK, Ghajar CM, Matei I, Peinado H, Bromberg J, Lyden D. Tumour exosome integrins determine organotropic metastasis. Nature 2015. [PMID: 26524530 DOI: 10.1038/nature 15756] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Ever since Stephen Paget's 1889 hypothesis, metastatic organotropism has remained one of cancer's greatest mysteries. Here we demonstrate that exosomes from mouse and human lung-, liver- and brain-tropic tumour cells fuse preferentially with resident cells at their predicted destination, namely lung fibroblasts and epithelial cells, liver Kupffer cells and brain endothelial cells. We show that tumour-derived exosomes uptaken by organ-specific cells prepare the pre-metastatic niche. Treatment with exosomes from lung-tropic models redirected the metastasis of bone-tropic tumour cells. Exosome proteomics revealed distinct integrin expression patterns, in which the exosomal integrins α6β4 and α6β1 were associated with lung metastasis, while exosomal integrin αvβ5 was linked to liver metastasis. Targeting the integrins α6β4 and αvβ5 decreased exosome uptake, as well as lung and liver metastasis, respectively. We demonstrate that exosome integrin uptake by resident cells activates Src phosphorylation and pro-inflammatory S100 gene expression. Finally, our clinical data indicate that exosomal integrins could be used to predict organ-specific metastasis.
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Affiliation(s)
- Ayuko Hoshino
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Bruno Costa-Silva
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Tang-Long Shen
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Department of Plant Pathology and Microbiology and Center for Biotechnology, National Taiwan University, Taipei 10617, Taiwan
| | - Goncalo Rodrigues
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Graduate Program in Areas of Basic and Applied Biology, Abel Salazar Biomedical Sciences Institute, University of Porto, 4099-003 Porto, Portugal
| | - Ayako Hashimoto
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tokyo, Tokyo 113-8655, Japan
| | - Milica Tesic Mark
- Proteomics Resource Center, The Rockefeller University, New York, New York 10065, USA
| | - Henrik Molina
- Proteomics Resource Center, The Rockefeller University, New York, New York 10065, USA
| | - Shinji Kohsaka
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Angela Di Giannatale
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Sophia Ceder
- Department of Oncology and Pathology, Karolinska Institutet, 17176 Stockholm, Sweden
| | - Swarnima Singh
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Caitlin Williams
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Nadine Soplop
- Electron Microscopy Resource Center (EMRC), Rockefeller University, New York, New York 10065, USA
| | - Kunihiro Uryu
- Electron Microscopy Resource Center (EMRC), Rockefeller University, New York, New York 10065, USA
| | - Lindsay Pharmer
- Breast Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, 10065, USA
| | - Tari King
- Breast Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, 10065, USA
| | - Linda Bojmar
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Department of Surgery, County Council of Östergötland, and Department of Clinical and Experimental Medicine, Faculty of Health Sciences, Linköping University, 58185 Linköping, Sweden
| | - Alexander E Davies
- Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Yonathan Ararso
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Tuo Zhang
- Genomics Resources Core Facility, Weill Cornell Medicine, New York, New York 10021, USA
| | - Haiying Zhang
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Jonathan Hernandez
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Joshua M Weiss
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Vanessa D Dumont-Cole
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Kimberly Kramer
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Leonard H Wexler
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Aru Narendran
- Division of Pediatric Oncology, Alberta Children's Hospital, Calgary, Alberta T3B 6A8, Canada
| | - Gary K Schwartz
- Division of Hematology/Oncology, Columbia University School of Medicine, New York, New York 10032, USA
| | - John H Healey
- Orthopaedic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Per Sandstrom
- Department of Surgery, County Council of Östergötland, and Department of Clinical and Experimental Medicine, Faculty of Health Sciences, Linköping University, 58185 Linköping, Sweden
| | - Knut Jørgen Labori
- Department of Hepato-Pancreato-Biliary Surgery, Oslo University Hospital, Nydalen, Oslo 0424, Norway
| | - Elin H Kure
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Nydalen, Oslo 0424, Norway
| | - Paul M Grandgenett
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - Michael A Hollingsworth
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - Maria de Sousa
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Graduate Program in Areas of Basic and Applied Biology, Abel Salazar Biomedical Sciences Institute, University of Porto, 4099-003 Porto, Portugal
| | - Sukhwinder Kaur
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - Maneesh Jain
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - Kavita Mallya
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - William R Jarnagin
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Mary S Brady
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Gastric and Mixed Tumor Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Oystein Fodstad
- Department of Tumor Biology, Norwegian Radium Hospital, Oslo University Hospital, Nydalen, Oslo 0424, Norway.,Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Blindern, Oslo 0318, Norway
| | - Volkmar Muller
- Department of Gynecology, University Medical Center, Martinistrasse 52, 20246 Hamburg, Germany
| | - Klaus Pantel
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Andy J Minn
- Department of Radiation Oncology, Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Mina J Bissell
- Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Benjamin A Garcia
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Yibin Kang
- Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA.,Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey 08903, USA
| | - Vinagolu K Rajasekhar
- Breast Medicine Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Cyrus M Ghajar
- Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA
| | - Irina Matei
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Hector Peinado
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Microenvironment and Metastasis Laboratory, Department of Molecular Oncology, Spanish National Cancer Research Center (CNIO), Madrid 28029, Spain
| | - Jacqueline Bromberg
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA.,Department of Medicine, Weill Cornell Medicine, New York, New York 10021, USA
| | - David Lyden
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
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Hoshino A, Costa-Silva B, Shen TL, Rodrigues G, Hashimoto A, Tesic Mark M, Molina H, Kohsaka S, Di Giannatale A, Ceder S, Singh S, Williams C, Soplop N, Uryu K, Pharmer L, King T, Bojmar L, Davies AE, Ararso Y, Zhang T, Zhang H, Hernandez J, Weiss JM, Dumont-Cole VD, Kramer K, Wexler LH, Narendran A, Schwartz GK, Healey JH, Sandstrom P, Labori KJ, Kure EH, Grandgenett PM, Hollingsworth MA, de Sousa M, Kaur S, Jain M, Mallya K, Batra SK, Jarnagin WR, Brady MS, Fodstad O, Muller V, Pantel K, Minn AJ, Bissell MJ, Garcia BA, Kang Y, Rajasekhar VK, Ghajar CM, Matei I, Peinado H, Bromberg J, Lyden D. Tumour exosome integrins determine organotropic metastasis. Nature 2015; 527:329-35. [PMID: 26524530 PMCID: PMC4788391 DOI: 10.1038/nature15756] [Citation(s) in RCA: 3246] [Impact Index Per Article: 360.7] [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: 10/30/2014] [Accepted: 09/29/2015] [Indexed: 12/11/2022]
Abstract
Ever since Stephen Paget’s 1889 hypothesis, metastatic organotropism has remained one of cancer’s greatest mysteries. Here we demonstrate that exosomes from mouse and human lung-, liver- and brain-tropic tumour cells fuse preferentially with resident cells at their predicted destination, namely lung fibroblasts and epithelial cells, liver Kupffer cells and brain endothelial cells. We show that tumour-derived exosomes uptaken by organ-specific cells prepare the pre-metastatic niche. Treatment with exosomes from lung-tropic models redirected the metastasis of bone-tropic tumour cells. Exosome proteomics revealed distinct integrin expression patterns, in which the exosomal integrins α6β4 and α6β1 were associated with lung metastasis, while exosomal integrin αvβ5 was linked to liver metastasis. Targeting the integrins α6β4 and αvβ5 decreased exosome uptake, as well as lung and liver metastasis, respectively. We demonstrate that exosome integrin uptake by resident cells activates Src phosphorylation and pro-inflammatory S100 gene expression. Finally, our clinical data indicate that exosomal integrins could be used to predict organ-specific metastasis.
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Affiliation(s)
- Ayuko Hoshino
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Bruno Costa-Silva
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Tang-Long Shen
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Department of Plant Pathology and Microbiology and Center for Biotechnology, National Taiwan University, Taipei 10617, Taiwan
| | - Goncalo Rodrigues
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Graduate Program in Areas of Basic and Applied Biology, Abel Salazar Biomedical Sciences Institute, University of Porto, 4099-003 Porto, Portugal
| | - Ayako Hashimoto
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tokyo, Tokyo 113-8655, Japan
| | - Milica Tesic Mark
- Proteomics Resource Center, The Rockefeller University, New York, New York 10065, USA
| | - Henrik Molina
- Proteomics Resource Center, The Rockefeller University, New York, New York 10065, USA
| | - Shinji Kohsaka
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Angela Di Giannatale
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Sophia Ceder
- Department of Oncology and Pathology, Karolinska Institutet, 17176 Stockholm, Sweden
| | - Swarnima Singh
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Caitlin Williams
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Nadine Soplop
- Electron Microscopy Resource Center (EMRC), Rockefeller University, New York, New York 10065, USA
| | - Kunihiro Uryu
- Electron Microscopy Resource Center (EMRC), Rockefeller University, New York, New York 10065, USA
| | - Lindsay Pharmer
- Breast Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, 10065, USA
| | - Tari King
- Breast Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, 10065, USA
| | - Linda Bojmar
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Department of Surgery, County Council of Östergötland, and Department of Clinical and Experimental Medicine, Faculty of Health Sciences, Linköping University, 58185 Linköping, Sweden
| | - Alexander E Davies
- Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Yonathan Ararso
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Tuo Zhang
- Genomics Resources Core Facility, Weill Cornell Medicine, New York, New York 10021, USA
| | - Haiying Zhang
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Jonathan Hernandez
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Joshua M Weiss
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Vanessa D Dumont-Cole
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Kimberly Kramer
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Leonard H Wexler
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Aru Narendran
- Division of Pediatric Oncology, Alberta Children's Hospital, Calgary, Alberta T3B 6A8, Canada
| | - Gary K Schwartz
- Division of Hematology/Oncology, Columbia University School of Medicine, New York, New York 10032, USA
| | - John H Healey
- Orthopaedic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Per Sandstrom
- Department of Surgery, County Council of Östergötland, and Department of Clinical and Experimental Medicine, Faculty of Health Sciences, Linköping University, 58185 Linköping, Sweden
| | - Knut Jørgen Labori
- Department of Hepato-Pancreato-Biliary Surgery, Oslo University Hospital, Nydalen, Oslo 0424, Norway
| | - Elin H Kure
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Nydalen, Oslo 0424, Norway
| | - Paul M Grandgenett
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - Michael A Hollingsworth
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - Maria de Sousa
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Graduate Program in Areas of Basic and Applied Biology, Abel Salazar Biomedical Sciences Institute, University of Porto, 4099-003 Porto, Portugal
| | - Sukhwinder Kaur
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - Maneesh Jain
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - Kavita Mallya
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - William R Jarnagin
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Mary S Brady
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Gastric and Mixed Tumor Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Oystein Fodstad
- Department of Tumor Biology, Norwegian Radium Hospital, Oslo University Hospital, Nydalen, Oslo 0424, Norway.,Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Blindern, Oslo 0318, Norway
| | - Volkmar Muller
- Department of Gynecology, University Medical Center, Martinistrasse 52, 20246 Hamburg, Germany
| | - Klaus Pantel
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Andy J Minn
- Department of Radiation Oncology, Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Mina J Bissell
- Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Benjamin A Garcia
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Yibin Kang
- Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA.,Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey 08903, USA
| | - Vinagolu K Rajasekhar
- Breast Medicine Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Cyrus M Ghajar
- Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA
| | - Irina Matei
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA
| | - Hector Peinado
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Microenvironment and Metastasis Laboratory, Department of Molecular Oncology, Spanish National Cancer Research Center (CNIO), Madrid 28029, Spain
| | - Jacqueline Bromberg
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA.,Department of Medicine, Weill Cornell Medicine, New York, New York 10021, USA
| | - David Lyden
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, New York 10021, USA.,Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
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Tai YL, Shen TL. Abstract LB-026: Pin1 negatively regulated Grb7 protein stability via the ubiquitin-proteasome cascade requires the peptidyl-prolyl cis/trans isomerase activity of Pin1. Cancer Res 2015. [DOI: 10.1158/1538-7445.am2015-lb-026] [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
Growth factor receptor bound protein-7 (Grb7) is a multi-domain adaptor protein in cooperation with numerous tyrosine kinases to regulate various cellular signaling and functions. Although the regulatory mechanisms on the activation of Grb7 have been documented, the molecular mechanism governing Grb7 stability and its functional consequence is still not clearly understood. Here, we observed a novel negative regulatory mechanism of Grb7 by peptidyl-prolyl cis/trans isomerases Pin1 at the post-translational level. The Grb7 phosphorylation on the Ser194-Pro motif facilitated its binding to the WW domain of Pin1 and subsequently ubiquitination on Grb7, which, in turn, enhanced the process of proteosome-dependent proteolysis. Moreover, the interaction between Grb7 and Pin1 is dependent on the phosphorylation that is mediated by c-Jun N-terminal kinases MAPK. Both the phosphorylated Ser/Thr-Pro motif binding module and the peptidyl-prolyl cis/trans isomerase activity of Pin1 is essentail for Pin1-mediated Grb7 ubiquitin-proteasome proteolysis. By contrast, inhibition of Pin by lentiviral-mediated gene silencing resulted in accumulation of Grb7 protein as well as prolonged Grb7 protein stability. A stable Grb7S194A mutant that cannot be bound to and modulated by Pin1 utilize its potential to influence cell cycle progression. Our finding revealed that the Pin1/Grb7 complex formation enables negatively regulating Grb7-mediated cell proliferation due to the influence of Grb7 protein stability.
Note: This abstract was not presented at the meeting.
Citation Format: Yu-Ling Tai, Tang-Long Shen. Pin1 negatively regulated Grb7 protein stability via the ubiquitin-proteasome cascade requires the peptidyl-prolyl cis/trans isomerase activity of Pin1. [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr LB-026. doi:10.1158/1538-7445.AM2015-LB-026
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Chou SM, Lai WJ, Hong T, Tsai SH, Chen YH, Kao CH, Chu R, Shen TL, Li TK. Involvement of p38 MAPK in the Anticancer Activity of Cultivated Cordyceps militaris. Am J Chin Med 2015. [PMID: 26205966 DOI: 10.1142/s0192415x15500603] [Citation(s) in RCA: 6] [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] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Cordyceps militaris is a traditional Chinese medicine frequently used for tonic and therapeutic purposes. Reports from our laboratory and others have demonstrated that extracts of the cultivated fruiting bodies of C. militaris (CM) exhibit a potent cytotoxic effect against many cancer cell lines, especially human leukemia cells. Here, we further investigated the underlying mechanism through which CM is cytotoxic to cancer cells. The CM-mediated induction of PARP cleavage and its related DNA damage signal (γH2AX) was diminished by caspase inhibitor I. In contrast, a ROS scavenger failed to prevent CM-mediated leukemia cell death. Moreover, two signaling molecules, AKT and p38 MAPK, were activated during the course of apoptosis induction. Employing MTT analysis, we found that a p38 MAPK inhibitor but not an AKT inhibitor could rescue cells from CM-mediated cell death, as well as inhibit the cleavage of PARP, formation of apoptotic bodies and up-regulation of the γH2AX signal. These results suggest that CM-mediated leukemia cell death occurs through the activation of the p38 MAPK pathway, indicating its potential therapeutic effects against human leukemia.
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Affiliation(s)
- Shang-Min Chou
- Department and Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | | | - Tzuwen Hong
- Mucho Biotechnology Inc., Taipei 10684, Taiwan.,Department of Plant Pathology and Microbiology, National Taiwan University, Taipei 10617, Taiwan
| | | | | | | | - Richard Chu
- Mucho Biotechnology Inc., Taipei 10684, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei 10617, Taiwan.,Center for Biotechnology, National Taiwan University, Taipei 10617, Taiwan
| | - Tsai-Kun Li
- Department and Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Taipei 10051, Taiwan.,Center for Biotechnology, National Taiwan University, Taipei 10617, Taiwan
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Lin CY, Wu ML, Shen TL, Yeh HH, Hung TH. Multiplex detection, distribution, and genetic diversity of Hop stunt viroid and Citrus exocortis viroid infecting citrus in Taiwan. Virol J 2015; 12:11. [PMID: 25645458 PMCID: PMC4340875 DOI: 10.1186/s12985-015-0247-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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: 10/10/2014] [Accepted: 01/20/2015] [Indexed: 11/15/2022] Open
Abstract
Background Two citrus viroids, Citrus exocortis viroid (CEVd) and Hop stunt viroid (HSVd), have been reported and become potential threats to the citrus industry in Taiwan. The distributions and infection rates of two viroids have not been investigated since the two diseases were presented decades ago. The genetic diversities and evolutionary relationships of two viroids also remain unclear in the mix citrus planted region. Methods Multiplex RT-PCR was used to detect the two viroids for the first time in seven main cultivars of citrus. Multiplex real-time RT-PCR quantified the distributions of two viroids in four citrus tissues. Sequence alignment and phylogenetic analysis were performed using the ClustalW and MEGA6 (neighbor-joining with p-distance model), respectively. Results HSVd was found more prevalent than CEVd (32.2% vs. 30.4%). Both CEVd and HSVd were commonly found simultaneously in the different citrus cultivars (up to 55%). Results of the multiplex quantitative analysis suggested that uneven distributions of both viroids with twig bark as the most appropriate material for studies involving viroid sampling such as quarantine inspection. Sequence alignment against Taiwanese isolates, along with analysis of secondary structure, revealed the existence of 10 and 5 major mutation sites in CEVd and HSVd, respectively. The mutation sites in CEVd were located at both ends of terminal and variability domains, whereas those in HSVd were situated in left terminal and pathogenicity domains. A phylogenetic analysis incorporating worldwide viroid isolates indicated three and two clusters for the Taiwanese isolates of CEVd and HSVd, respectively. Conclusions Moderately high infection and co-infection rates of two viroids in certain citrus cultivars suggest that different citrus cultivars may play important roles in viroid infection and evolution. These data also demonstrate that two multiplex molecular detection methods developed in the present study provide powerful tools to understand the genetic diversities among viroid isolates and quantify viroids in citrus host. Our field survey can help clarify citrus-viroid relationships as well as develop proper prevention strategies.
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Affiliation(s)
- Chun-Yi Lin
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, 10617, Taiwan.
| | - Meng-Ling Wu
- Division of Forest Protection, Taiwan Forestry Research Institute, Taipei, 10066, Taiwan.
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, 10617, Taiwan.
| | - Hsin-Hung Yeh
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, 11529, Taiwan.
| | - Ting-Hsuan Hung
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, 10617, Taiwan.
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Chou SM, Lai WJ, Hong TW, Lai JY, Tsai SH, Chen YH, Yu SH, Kao CH, Chu R, Ding ST, Li TK, Shen TL. Synergistic property of cordycepin in cultivated Cordyceps militaris-mediated apoptosis in human leukemia cells. Phytomedicine 2014; 21:1516-24. [PMID: 25442260 DOI: 10.1016/j.phymed.2014.07.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 06/10/2014] [Accepted: 07/27/2014] [Indexed: 05/25/2023]
Abstract
Cordyceps militaris is a well-known Chinese traditional medicinal mushroom frequently used for tonics and recently of a potential interest for cancer intervention. Here, we explored the cancer cell killing activity of the hot water extracts of C. militaris cultured mycelia (CM(MY)) and cultivated fruiting bodies (CM(FB)). We found that CM(FB) exhibited a greater cytotoxic effect against various cancer cells over CM(MY). Apoptotic phenotypes including apoptotic body formation, DNA laddering, caspase 3 activation and cleavage of PARP proteins were induced by CM(FB) treatment but only slightly induced by same concentration of CM(MY) treatment in human HL-60 leukemia cells. Cordycepin in CM(FB) (10.47 mg/g) is significantly higher (∼ 15.2 times) than that of CM(MY) (0.69 mg/g). Using isobolographic analysis, the synergy of cytotoxicity was observed across different combined concentrations of CM(MY) and cordycepin. By complementing cordycepin into CM(MY) to the level comparable with CM(FB), we observed that CM(MY) (500 μg/ml) with cordycepin (4.8 μg/ml) induced apoptosis to a level similar to that induced by CM(FB) (500 μg/ml). Together, our results suggest that cordycepin possesses a synergistic cytotoxic effect with Cordyceps militaris-mediated apoptosis in human leukemia cells and therefore explaining a better anti-proliferating activity of CM(FB) over CM(MY).
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Affiliation(s)
- Shang-Min Chou
- Department and Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | | | - Tzu-Wen Hong
- Mucho Biotechnology Inc., Taipei 106, Taiwan; Department of Plant Pathology and Microbiology, National Taiwan University, Taipei 106, Taiwan
| | - Jui-Ya Lai
- Mucho Biotechnology Inc., Taipei 106, Taiwan
| | | | | | - Sz-Hsien Yu
- Mucho Biotechnology Inc., Taipei 106, Taiwan
| | | | - Richard Chu
- Mucho Biotechnology Inc., Taipei 106, Taiwan
| | - Shih-Torng Ding
- Department of Animal Science and Technology, National Taiwan University, Taipei 106, Taiwan; Center for Biotechnology, National Taiwan University, Taipei 106, Taiwan
| | - Tsai-Kun Li
- Department and Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Taipei 100, Taiwan; Center for Biotechnology, National Taiwan University, Taipei 106, Taiwan.
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei 106, Taiwan; Center for Biotechnology, National Taiwan University, Taipei 106, Taiwan.
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Yao WL, Ko BS, Liu TA, Liang SM, Liu CC, Lu YJ, Tzean SS, Shen TL, Liou JY. Cordycepin suppresses integrin/FAK signaling and epithelial-mesenchymal transition in hepatocellular carcinoma. Anticancer Agents Med Chem 2014; 14:29-34. [PMID: 23855336 DOI: 10.2174/18715206113139990305] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 05/02/2013] [Accepted: 06/06/2013] [Indexed: 11/22/2022]
Abstract
Cordycepin, also known as 3-deoxyadenosine, is an analogue of adenosine extracted from the traditional Chinese medicine "Dong Chong Xia Cao". Cordycepin is an active small molecular weight compound and is implicated in modulating multiple physiological functions including immune activation, anti-aging and anti-tumor effects. Several studies have indicated that cordycepin suppresses tumor progression. However, the signaling pathways involved in cordycepin regulating cancer cell motility, invasiveness and epithelial-mesenchymal transition (EMT) remain unclear. In this study, we found that cordycepin inhibits hepatocellular carcinoma (HCC) cell proliferation and migration/invasion. Treatment of cordycepin results in the increasing expression of epithelial marker, Ecadherin while no significant effect was found on N-cadherin α-catenin and β-catenin. Furthermore, although the expression of focal adhesion kinase (FAK) was slightly reduced, the level of phosphorylated FAK was significantly reduced by the treatment of cordycepin. In addition, cordycepin significantly suppresses the expression of integrin α3, integrin α6 and integrin β1 which are crucial interacting partners of FAK in regulating the focal adhesion complex. These results suggest cordycepin may contribute to EMT, antimigration/ invasion and growth inhibitory effects of HCC by suppressing E-cadherin and integrin/FAK signaling. Thus, cordycepin is a potential therapeutic or supplementary agent for preventing HCC tumor progression.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Jun-Yang Liou
- Institute of Cellular and System Medicine, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County 35053, Taiwan.
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Hsieh MY, Fan JR, Chang HW, Chen HC, Shen TL, Teng SC, Yeh YH, Li TK. DNA topoisomerase III alpha regulates p53-mediated tumor suppression. Clin Cancer Res 2014; 20:1489-501. [PMID: 24526736 DOI: 10.1158/1078-0432.ccr-13-1997] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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
PURPOSE Human DNA topoisomerase III alpha (hTOP3α) is involved in DNA repair surveillance and cell-cycle checkpoints possibly through formatting complex with tumor suppressors. However, its role in cancer development remained unsolved. EXPERIMENTAL DESIGN Coimmunoprecipitation, sucrose gradient, chromatin immunoprecipitation (ChIP), real time PCR, and immunoblotting analyses were performed to determine interactions of hTOP3α with p53. Paired cell lines with different hTOP3α levels were generated via ectopic expression and short hairpin RNA (shRNA)-mediated knockdown approaches. Cellular tumorigenic properties were analyzed using cell counting, colony formation, senescence, soft agar assays, and mouse xenograft models. RESULTS The hTOP3α isozyme binds to p53 and cofractionizes with p53 in gradients differing from fractions containing hTOP3α and BLM. Knockdown of hTOP3α expression (sh-hTOP3α) caused a higher anchorage-independent growth of nontumorigenic RHEK-1 cells. Similarly, sh-hTOP3α and ectopic expression of hTOP3α in cancer cell lines caused increased and reduced tumorigenic abilities, respectively. Genetic and mutation experiments revealed that functional hTOP3α, p53, and p21 are required for this tumor-suppressive activity. Mechanism-wise, ChIP data revealed that hTOP3α binds to the p53 and p21 promoters and positively regulates their expression. Two proteins affect promoter recruitments of each other and collaborate in p21 expression. Moreover, sh-hTOP3α and sh-p53 in AGS cells caused a similar reduction in senescence and hTOP3α mRNA levels were lower in gastric and renal tumor samples. CONCLUSION We concluded that hTOP3α interacts with p53, regulates p53 and p21 expression, and contributes to the p53-mediated tumor suppression.
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Affiliation(s)
- Mei-Yi Hsieh
- Authors' Affiliations: Department and Graduate Institute of Microbiology, College of Medicine, Department of Plan Pathology and Microbiology, College of Bioresources and Agriculture, and Center for Biotechnology, National Taiwan University, Taipei, Taiwan
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Ko BS, Lu YJ, Yao WL, Liu TA, Tzean SS, Shen TL, Liou JY. Cordycepin regulates GSK-3β/β-catenin signaling in human leukemia cells. PLoS One 2013; 8:e76320. [PMID: 24086728 PMCID: PMC3784440 DOI: 10.1371/journal.pone.0076320] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 08/23/2013] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Leukemia stem cells (LSCs) are a limitless cell source for the initiation and maintenance of leukemia. Activation of the Wnt/β-catenin pathway is required for the survival and development of LSCs. Therefore, targeting β-catenin is considered a therapeutic strategy for the treatment of leukemia. The goal of this study was to explore whether cordycepin, an active component of the traditional medicine Cordyceps sinensis, regulates β-catenin expression in leukemia cells. METHODOLOGY AND PRINCIPAL FINDINGS In this study, we found that cordycepin significantly suppressed cell proliferation in all malignant cancer cells, including U937, K562, A549, HepG2, SK-Hep1 and MCF7 in a dose-dependent manner. However, cordycepin reduced β-catenin levels in U937, K562 and THP1 leukemia cells and had no effect on other solid cancer cells. In addition, treatment with cordycepin significantly suppressed leukemia colony formation in soft agar assay. Cordycepin enhanced proteasome-dependent degradation and inhibited nuclear translocation of β-catenin in leukemia cells. Cordycepin-reduced β-catenin stability was restored by the addition of a pharmacological inhibitor of GSK-3β, indicating that cordycepin-suppressed β-catenin stability is mediated by the activation of GSK-3β. Furthermore, cordycepin abolished the effect of Wnt3a-induced β-catenin in leukemia cells. In addition, cordycepin-impaired β-catenin is regulated by Akt activation but is not significantly influenced by AMPK or mTOR signal pathways. SIGNIFICANCE Our findings show for the first time that codycepin selectively reduces β-catenin stability in leukemia but not in other solid tumor cells. This suppressive effect is mediated by regulating GSK-3β. A synergistic combination of cordycepin with other treatments should be used as a novel strategy to eradicate leukemia via elimination of LSCs.
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Affiliation(s)
- Bor-Sheng Ko
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Jhu Lu
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
| | - Wen-Ling Yao
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Tzu-An Liu
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
| | - Shean-Shong Tzean
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Jun-Yang Liou
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- * E-mail:
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Schmidt TT, Tauseef M, Yue L, Bonini MG, Gothert J, Shen TL, Guan JL, Predescu S, Sadikot R, Mehta D. Conditional deletion of FAK in mice endothelium disrupts lung vascular barrier function due to destabilization of RhoA and Rac1 activities. Am J Physiol Lung Cell Mol Physiol 2013; 305:L291-300. [PMID: 23771883 DOI: 10.1152/ajplung.00094.2013] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Loss of lung-fluid homeostasis is the hallmark of acute lung injury (ALI). Association of catenins and actin cytoskeleton with vascular endothelial (VE)-cadherin is generally considered the main mechanism for stabilizing adherens junctions (AJs), thereby preventing disruption of lung vascular barrier function. The present study identifies endothelial focal adhesion kinase (FAK), a nonreceptor tyrosine kinase that canonically regulates focal adhesion turnover, as a novel AJ-stabilizing mechanism. In wild-type mice, induction of ALI by intraperitoneal administration of lipopolysaccharide or cecal ligation and puncture markedly decreased FAK expression in lungs. Using a mouse model in which FAK was conditionally deleted only in endothelial cells (ECs), we show that loss of EC-FAK mimicked key features of ALI (diffuse lung hemorrhage, increased transvascular albumin influx, edema, and neutrophil accumulation in the lung). EC-FAK deletion disrupted AJs due to impairment of the fine balance between the activities of RhoA and Rac1 GTPases. Deletion of EC-FAK facilitated RhoA's interaction with p115-RhoA guanine exchange factor, leading to activation of RhoA. Activated RhoA antagonized Rac1 activity, destabilizing AJs. Inhibition of Rho kinase, a downstream effector of RhoA, reinstated normal endothelial barrier function in FAK-/- ECs and lung vascular integrity in EC-FAK-/- mice. Our findings demonstrate that EC-FAK plays an essential role in maintaining AJs and thereby lung vascular barrier function by establishing the normal balance between RhoA and Rac1 activities.
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Affiliation(s)
- Tracy Thennes Schmidt
- Dept. of Pharmacology, The Univ. of Illinois, College of Medicine, 835 S. Wolcott Ave., Chicago, IL 60612.
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Yang YC, Chou HYE, Shen TL, Chang WJ, Tai PH, Li TK. Topoisomerase II-mediated DNA cleavage and mutagenesis activated by nitric oxide underlie the inflammation-associated tumorigenesis. Antioxid Redox Signal 2013; 18:1129-40. [PMID: 22998676 DOI: 10.1089/ars.2012.4620] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
AIMS Both cancer-suppressing and cancer-promoting properties of reactive nitrogen and oxygen species (RNOS) have been suggested to play a role in tumor pathology, particularly those activities associated with chronic inflammation. Here, we address the impact of nitric oxide (NO) on the induction of DNA damage and genome instability with a specific focus on the involvement of topoisomerase II (TOP2). We also investigate the contribution of NO to the formation of skin melanoma in mice. RESULTS Similar to the TOP2-targeting drug, etoposide (VP-16), the NO-donor, S-nitrosoglutathione (GSNO), induces skin melanomas formation in 7,12-dimethyl- benz[a]anthracene (DMBA)-initiated mice. To explore the mechanism(s) underlying this NO-induced tumorigenesis, we use a co-culture model system to demonstrate that inflamed macrophages with inducible NO synthase (iNOS) expression cause γ-H2AX activation, p53 phosphorylation, and chromosome DNA breaks in the target cells. Inhibitor experiments revealed that NO and TOP2 isozymes are responsible for the above described cellular phenotypes. Notably, NO, unlike VP-16, preferentially induces the formation of TOP2β cleavable complexes (TOP2βcc) in cells. Moreover, GSNO induced TOP2-dependent DNA sequence rearrangements and cytotoxicity. Furthermore, the incidences of GSNO- and VP-16-induced skin melanomas were also observed to be lower in the skin-specific top2β-knockout mice. Our results suggest that TOP2 isozymes contribute to NO-induced mutagenesis and subsequent cancer development during chronic inflammation. INNOVATION AND CONCLUSIONS We provide the first experimental evidence for the functional role of TOP2 in NO-caused DNA damage, mutagenesis, and carcinogenesis. Notably, these studies contribute to our molecular understanding of the cancer-promoting actions of RNOS during chronic inflammation.
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Affiliation(s)
- Yu-Chen Yang
- Department and Graduate Institute of Microbiology, College of Medicine, National Taiwan University, Taipei, Taiwan
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40
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Tai YL, Shen TL. Abstract C44: Activation of focal adhesion kinase by direct interaction with β4 integrin in an EGFR-Src-dependent pathway in tumor progression. Cancer Res 2013. [DOI: 10.1158/1538-7445.tim2013-c44] [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
Although β4 integrin and FAK (focal adhesion kinase) are individually known to be associated with tumor progression, only recently have they been suggested to function in a signaling axis. Here, we demonstrate in vivo and in vitro physical and functional interactions between β4 integrin and FAK. An 11-amino acid motif of FAK was identified as essential for interaction with the cytodomain of β4 integrin in malignant cells but not in less malignant cells, implicating the role of this interaction in malignancies. Furthermore, this interaction occurs in an adhesion-dependent manner and results in autophosphorylation of FAK's Tyr-397. EGF signaling and Src activity were indispensable for this interaction. Finally, disruption of the β4 integrin/FAK complexes reduced cell proliferation, migration and invasion as well as tumorigenesis, in concurrence with the decreases in phospho-Akt and phospho-p38. Together, our data elucidate an underlying mechanism for the regulation of tumor progression by the novel β4 integrin/FAK complexes through a physical interaction that is EGF/Src dependent. The significance of this finding is highlighted by often co-overexpression of both integrin β4 and FAK in patients' cancerous tissues with colon cancer revealed by immunohistochemistry analyses. Based on the structural prediction for the complex of integrin β4 and FAK, it may lead us to gain more insight on the anticancer therapies of aggressive cancers.
Citation Format: Yu-Ling Tai, Tang-Long Shen. Activation of focal adhesion kinase by direct interaction with β4 integrin in an EGFR-Src-dependent pathway in tumor progression. [abstract]. In: Proceedings of the AACR Special Conference on Tumor Invasion and Metastasis; Jan 20-23, 2013; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2013;73(3 Suppl):Abstract nr C44.
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41
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Hsu CH, Shen TL, Chang CF, Chang YY, Huang LY. Solution structure of the oncogenic MIEN1 protein reveals a thioredoxin-like fold with a redox-active motif. PLoS One 2012; 7:e52292. [PMID: 23284973 PMCID: PMC3527542 DOI: 10.1371/journal.pone.0052292] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Accepted: 11/12/2012] [Indexed: 11/18/2022] Open
Abstract
The novel tumor biomarker MIEN1, identified by representational difference analysis, is overexpressed in breast cancer and prostate cancer. MIEN1 is considered an oncogenic protein, because MIEN1 overexpression functionally enhances migration and invasion of tumor cells via modulating the activity of AKT. However, the structure and molecular function of MIEN1 is little understood. Here, we report the solution structure of MIEN1, which adopts a thioredoxin-like fold with a redox-active motif. Comparison of backbone chemical shifts showed that most of the residues for both oxidized and reduced MIEN1 possessed the same backbone conformation, with differences limited to the active motif and regions in proximity. The redox potential of this disulfide bond was measured as -225 mV, which compares well with that of disulfides for other thioredoxin-like proteins. Overall, our results suggest that MIEN1 may have an important regulatory role in phosphorylation of AKT with its redox potential.
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Affiliation(s)
- Chun-Hua Hsu
- Department of Agricultural Chemistry, National Taiwan University, Taipei, Taiwan.
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42
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Lin CE, Chen SU, Lin CC, Chang CH, Lin YC, Tai YL, Shen TL, Lee H. Lysophosphatidic acid enhances vascular endothelial growth factor-C expression in human prostate cancer PC-3 cells. PLoS One 2012; 7:e41096. [PMID: 22911748 PMCID: PMC3401111 DOI: 10.1371/journal.pone.0041096] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2011] [Accepted: 06/21/2012] [Indexed: 12/16/2022] Open
Abstract
Clinical evidence suggests that lymphangiogenesis and lymphatic metastasis are important processes during the progression of prostate cancer. Vascular endothelial growth factor (VEGF)-C was shown to be a key regulator in these processes. Our previous studies demonstrated that lysophosphatidic acid (LPA), a low-molecular-weight lipid growth factor, enhances VEGF-C expression in human endothelial cells. We previously demonstrated that the LPA receptor plays an important role in lymphatic development in zebrafish embryos. However, the effects of LPA on VEGF-C expression in prostate cancer are not known. Herein, we demonstrate that LPA up-regulated VEGF-C expression in three different human prostate cancer cell lines. In PC-3 human prostate cancer cells, the enhancing effects of LPA were mediated through both LPA1 and LPA3. In addition, reactive oxygen species (ROS) production and lens epithelium-derived growth factor (LEDGF) expression were involved in LPA1/3-dependent VEGF-C expression. Furthermore, autotaxin (ATX), an enzyme responsible for LPA synthesis, also participates in regulating VEGF-C expression. By interrupting LPA1/3 of PC-3, conditioned medium (CM) -induced human umbilical vein endothelial cell (HUVEC) lymphatic markers expression was also blocked. In summary, we found that LPA enhances VEGF-C expression through activating LPA1/3-, ROS-, and LEDGF-dependent pathways. These novel findings could potentially shed light on developing new strategies for preventing lymphatic metastasis of prostate cancer.
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Affiliation(s)
- Chuan-En Lin
- Institute of Zoology, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Shee-Uan Chen
- Department of Obstetrics and Gynecology, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Chu-Cheng Lin
- Department of Life Science, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Chi-Hao Chang
- Institute of Zoology, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Yueh-Chien Lin
- Institute of Zoology, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Yu-Ling Tai
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan, Republic of China
- Center for Biotechnology, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Hsinyu Lee
- Institute of Zoology, National Taiwan University, Taipei, Taiwan, Republic of China
- Department of Life Science, National Taiwan University, Taipei, Taiwan, Republic of China
- Center for Biotechnology, National Taiwan University, Taipei, Taiwan, Republic of China
- Angiogenesis Research Center, National Taiwan University, Taipei, Taiwan, Republic of China
- * E-mail:
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43
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Yang CY, Liao TC, Shuai HH, Shen TL, Yeh JA, Cheng CM. Micropatterning of mammalian cells on inorganic-based nanosponges. Biomaterials 2012; 33:4988-97. [DOI: 10.1016/j.biomaterials.2012.03.071] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Accepted: 03/21/2012] [Indexed: 12/26/2022]
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44
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Chang TC, Liu CC, Hsing EW, Liang SM, Chi YH, Sung LY, Lin SP, Shen TL, Ko BS, Yen BL, Yet SF, Wu KK, Liou JY. 14-3-3σ regulates β-catenin-mediated mouse embryonic stem cell proliferation by sequestering GSK-3β. PLoS One 2012; 7:e40193. [PMID: 22768254 PMCID: PMC3387134 DOI: 10.1371/journal.pone.0040193] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Accepted: 06/02/2012] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Pluripotent embryonic stem cells are considered to be an unlimited cell source for tissue regeneration and cell-based therapy. Investigating the molecular mechanism underlying the regulation of embryonic stem cell expansion is thus important. 14-3-3 proteins are implicated in controlling cell division, signaling transduction and survival by interacting with various regulatory proteins. However, the function of 14-3-3 in embryonic stem cell proliferation remains unclear. METHODOLOGY AND PRINCIPAL FINDINGS In this study, we show that all seven 14-3-3 isoforms were detected in mouse embryonic stem cells. Retinoid acid suppressed selectively the expression of 14-3-3σ isoform. Knockdown of 14-3-3σ with siRNA reduced embryonic stem cell proliferation, while only 14-3-3σ transfection increased cell growth and partially rescued retinoid acid-induced growth arrest. Since the growth-enhancing action of 14-3-3σ was abrogated by β-catenin knockdown, we investigated the influence of 14-3-3σ overexpression on β-catenin/GSK-3β. 14-3-3σ bound GSK-3β and increased GSK-3β phosphorylation in a PI-3K/Akt-dependent manner. It disrupted β-catenin binding by the multiprotein destruction complex. 14-3-3σ overexpression attenuated β-catenin phosphorylation and rescued the decline of β-catenin induced by retinoid acid. Furthermore, 14-3-3σ enhanced Wnt3a-induced β-catenin level and GSK-3β phosphorylation. DKK, an inhibitor of Wnt signaling, abolished Wnt3a-induced effect but did not interfere GSK-3β/14-3-3σ binding. SIGNIFICANCE Our findings show for the first time that 14-3-3σ plays an important role in regulating mouse embryonic stem cell proliferation by binding and sequestering phosphorylated GSK-3β and enhancing Wnt-signaled GSK-3β inactivation. 14-3-3σ is a novel target for embryonic stem cell expansion.
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Affiliation(s)
- Tzu-Ching Chang
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
| | - Chia-Chia Liu
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan
| | - En-Wei Hsing
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
| | - Shu-Man Liang
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
| | - Ya-Hui Chi
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
| | - Li-Ying Sung
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Shau-Ping Lin
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Tang-Long Shen
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan
| | - Bor-Sheng Ko
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - B. Linju Yen
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
| | - Shaw-Fang Yet
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
| | - Kenneth K. Wu
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
- * E-mail: (JYL); (KKW)
| | - Jun-Yang Liou
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan
- * E-mail: (JYL); (KKW)
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45
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Wang LY, Lin SS, Hung TH, Li TK, Lin NC, Shen TL. Multiple domains of the tobacco mosaic virus p126 protein can independently suppress local and systemic RNA silencing. Mol Plant Microbe Interact 2012; 25:648-57. [PMID: 22324815 DOI: 10.1094/mpmi-06-11-0155] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Small RNA-mediated RNA silencing is a widespread antiviral mechanism in plants and other organisms. Many viruses encode suppressors of RNA silencing for counter-defense. The p126 protein encoded by Tobacco mosaic virus (TMV) has been reported to be a suppressor of RNA silencing but the mechanism of its function remains unclear. This protein is unique among the known plant viral silencing suppressors because of its large size and multiple domains. Here, we report that the methyltransferase, helicase, and nonconserved region II (NONII) of p126 each has silencing-suppressor function. The silencing-suppression activities of methyltransferase and helicase can be uncoupled from their enzyme activities. Specific amino acids in NONII previously shown to be crucial for viral accumulation and symptom development are also crucial for silencing suppression. These results suggest that some viral proteins have evolved to possess modular structural domains that can independently interfere with host silencing, and that this may be an effective mechanism of increasing the robustness of a virus.
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Affiliation(s)
- Li-Ya Wang
- Department of Plant Pathology and Microbiology, College of Bioresources and Agriculture, National Taiwan University, Taipei, Taiwan
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46
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Wang LY, Lin SS, Hung TH, Li TK, Lin NC, Shen TL. Multiple domains of the tobacco mosaic virus p126 protein can independently suppress local and systemic RNA silencing. Mol Plant Microbe Interact 2012; 25:6-17. [PMID: 22324815 DOI: 10.1094/mpmi-08-11-0207] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Small RNA-mediated RNA silencing is a widespread antiviral mechanism in plants and other organisms. Many viruses encode suppressors of RNA silencing for counter-defense. The p126 protein encoded by Tobacco mosaic virus (TMV) has been reported to be a suppressor of RNA silencing but the mechanism of its function remains unclear. This protein is unique among the known plant viral silencing suppressors because of its large size and multiple domains. Here, we report that the methyltransferase, helicase, and nonconserved region II (NONII) of p126 each has silencing-suppressor function. The silencing-suppression activities of methyltransferase and helicase can be uncoupled from their enzyme activities. Specific amino acids in NONII previously shown to be crucial for viral accumulation and symptom development are also crucial for silencing suppression. These results suggest that some viral proteins have evolved to possess modular structural domains that can independently interfere with host silencing, and that this may be an effective mechanism of increasing the robustness of a virus.
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Affiliation(s)
- Li-Ya Wang
- Department of Plant Pathology and Microbiology, College of Bioresources and Agriculture, National Taiwan University, Taipei, Taiwan
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47
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Chu PY, Li TK, Chou KM, Shen TL. Abstract LB-28: A co-op of EGFR and EphA4 promotes the progression of NSCLC through EGF-Grb7-Stat3 mediated transcriptional regulation of EphA4 gene expression. Cancer Res 2012. [DOI: 10.1158/1538-7445.am2012-lb-28] [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
Growth factor receptor bound protein-7 (Grb7) regulates diverse cellular functions as a result of its multi-domain functionality in protein-protein interactions. A number of reports have indicated that Grb7 is essential for EGFR-mediated tumorigenesis and cancer progression. However, it remains unclear how Grb7 potentiates tumor progression. To understand the underlying mechanisms by which Grb7 participates in EGFR-mediated tumorigenesis, we utilized microarray analyses and yeast two-hybrid screening to explore Grb7-mediated signaling. Of which, a migration related protein, EphA4, was markedly up-regulated in associated with Grb7 overexpression but down-regulated while knocking down Grb7. Eventually, in response to EGF stimulation, we found that Grb7 was trans-located into the nucleus from the cytoplasm, which in turn promoted STAT3 transcriptional activity on EphA4 gene expression. The significance of this finding is further highlighted by the co-upregulation of Grb7 and EphA4 is concurrent with the highly invasive capability of lung adenocarcinoma. Moreover, we found that EphA4 could also potentiate EGF-induced reorganization of cytoskeleton, ERK1/2 phosphorylation, and cancer cell functions such as proliferation, migration and anchorage-independent growth. Based on these findings, we hypothesize that EphA4 can act as an amplifier involved EGF-mediated cancer progression in an EGF/Grb7/Stat3-mediated transcriptional manner. This study reveals a novel mechanism by which Grb7 regulates tumor progression through the EGF- by triggering EphA4 expression and then prolonging EGFR signaling in regulation of diverse cellular functions involved in cancer progression, thereby highlighting the potential strategy to target Grb7 for anti-cancer therapy.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr LB-28. doi:1538-7445.AM2012-LB-28
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Affiliation(s)
- Pei-Yu Chu
- 1National Taiwan University, Taipei, Taiwan
| | - Tsai-Kun Li
- 2National Taiwan University Medical School, Taipei, Taiwan
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48
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Li TK, Yang YC, Shen TL. Abstract LB-394: Type II topoisomerases contribute to nitric oxide-induced DNA breakage during cancer-related inflammation. Cancer Res 2012. [DOI: 10.1158/1538-7445.am2012-lb-394] [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
Activated inflammatory leukocytes generate a variety of reactive nitrogen and species (RNOS) which have been proposed to contribute to genome instability and cancer development. We previously reported that oxidative stress induces topoisomerase II (TOP2)-mediated DNA breaks via TOP2 cleavable complex (TOP2cc) formation. Moreover, drug-induced TOP2αcc and TOP2βcc are suggested to be anti-cancer and carcinogenic, respectively. Here we show that either inflammation-produced or chemical-released nitric oxide (NO), like TOP2-targeting etoposide (VP-16), induce TOP2cc-meidated DNA breakage, mutagenesis and carcinogenesis: (i) NO-releaser S-nitrosoglutathione (GSNO) induces formation of skin melanomas in 9,10-dimethyl-1,2-benzanthracene (DMBA)-initiated mice; (ii) the co-culture experiments revealed that inflamed macrophages causes activation of DNA damage response and chromosome DNA breakage in target cells (iii) NO production and two TOP2 isozymes are responsible for the generation of chromosome DNA breaks; (iv) consistently, treatment of a NO releaser GSNO induces hTOP2αcc and hTOP2βcc formation; (v) GSNO also increases mutation rate and kill cells in TOP2-dependent manner; and (vi) the incidences of GSNO- and VP-16-induced melanomas are found to be lower in skin-specific top2β-knockout mice. Thus, our results provide the first demonstration for the functional role of TOP2 in the NO-caused DNA damage, mutagenesis and carcinogenesis. The TOP2 involvement in pathological settings such as chronic inflammation-associated mutagenesis and subsequent cancer development were discussed.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr LB-394. doi:1538-7445.AM2012-LB-394
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Affiliation(s)
- Tsai-Kun Li
- 1College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yu-Chen Yang
- 1College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Tang-Long Shen
- 2College of Agriculture and Bioscources, National Taiwan University, Taipei, Taiwan
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Thennes T, Tauseef M, Bonini M, Gothert J, Shen TL, Guan JL, Sadikot R, Mehta D. Endothelial Focal adhesion kinase maintains lung fluid balance and prevents cytokine storm. FASEB J 2012. [DOI: 10.1096/fasebj.26.1_supplement.1063.8] [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] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tracy Thennes
- PharmacologyUniversity of Illinois at ChicagoChicagoIL
| | | | | | | | | | - Jun-Lin Guan
- Molecular Medicine and GeneticsUniversity of MichiganAnn ArborMI
| | - Ruxana Sadikot
- Pulmonary and Critical CareUniversity of Illinois at ChicagoChicagoIL
| | - Dolly Mehta
- PharmacologyUniversity of Illinois at ChicagoChicagoIL
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Liu TA, Jan YJ, Ko BS, Chen SC, Liang SM, Hung YL, Hsu C, Shen TL, Lee YM, Chen PF, Wang J, Shyue SK, Liou JY. Increased expression of 14-3-3β promotes tumor progression and predicts extrahepatic metastasis and worse survival in hepatocellular carcinoma. Am J Pathol 2011; 179:2698-708. [PMID: 21967815 DOI: 10.1016/j.ajpath.2011.08.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Revised: 07/20/2011] [Accepted: 08/11/2011] [Indexed: 01/06/2023]
Abstract
14-3-3β is implicated in cell survival, proliferation, migration, and tumor growth; however, its clinical relevance in tumor progression and metastasis have never been elucidated. To evaluate the clinical significance of 14-3-3β, we analyzed the association of 14-3-3β expression and clinicopathologic characteristics in primary and subsequent metastatic tumors of hepatocellular carcinoma patients. 14-3-3β was expressed abundantly in 40 of 55 (70.7%) primary tumors. Increased 14-3-3β expression in primary tumors predicted a higher 5-year cumulative incidence of subsequent extrahepatic metastasis, and multivariate analysis revealed 14-3-3β overexpression was an independent risk factor for extrahepatic metastasis. Patients with increased 14-3-3β expression in primary tumors had worse 5-year overall survival rates, and 14-3-3β overexpression was an independent prognostic factor on Cox regression analysis. Furthermore, stably overexpressed 14-3-3β enhanced hepatocellular carcinoma cell migration and proliferation and increased anchorage-independent cell growth. In addition, in vivo study in a nude-mice model showed tumor formation significantly increased with 14-3-3β overexpression. In conclusion, this is the first report to show that increased 14-3-3β expression is associated with subsequent extrahepatic metastasis and worse survival rates, as well as cancer progression of hepatocellular carcinoma. Thus, 14-3-3β may be a novel prognostic biomarker and therapeutic target in hepatocellular carcinoma.
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Affiliation(s)
- Tzu-An Liu
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Miaoli, Taiwan
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