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Megino-Luque C, Bravo-Cordero JJ. Metastasis suppressor genes and their role in the tumor microenvironment. Cancer Metastasis Rev 2023; 42:1147-1154. [PMID: 37982987 PMCID: PMC10842895 DOI: 10.1007/s10555-023-10155-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 11/09/2023] [Indexed: 11/21/2023]
Abstract
The metastatic cascade is a complex process with multiple factors contributing to the seeding and growth of cancer cells at metastatic sites. Within this complex process, several genes have been identified as metastasis suppressors, playing a role in the inhibition of metastasis. Interestingly, some of these genes have been shown to also play a role in regulating the tumor microenvironment. In this review, we comment on the recent developments in the biology of metastasis suppressor genes and their crosstalk with the microenvironment.
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Affiliation(s)
- Cristina Megino-Luque
- Department of Medicine, Division of Hematology and Oncology, The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jose Javier Bravo-Cordero
- Department of Medicine, Division of Hematology and Oncology, The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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2
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Merkher Y, Kontareva E, Alexandrova A, Javaraiah R, Pustovalova M, Leonov S. Anti-Cancer Properties of Flaxseed Proteome. Proteomes 2023; 11:37. [PMID: 37987317 PMCID: PMC10661269 DOI: 10.3390/proteomes11040037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/06/2023] [Accepted: 11/10/2023] [Indexed: 11/22/2023] Open
Abstract
Flaxseed has been recognized as a valuable source of nutrients and bioactive compounds, including proteins that possess various health benefits. In recent years, studies have shown that flaxseed proteins, including albumins, globulins, glutelin, and prolamins, possess anti-cancer properties. These properties are attributed to their ability to inhibit cancer cell proliferation, induce apoptosis, and interfere with cancer cell signaling pathways, ultimately leading to the inhibition of metastasis. Moreover, flaxseed proteins have been reported to modulate cancer cell mechanobiology, leading to changes in cell behavior and reduced cancer cell migration and invasion. This review provides an overview of the anti-cancer properties of flaxseed proteins, with a focus on their potential use in cancer treatment. Additionally, it highlights the need for further research to fully establish the potential of flaxseed proteins in cancer therapy.
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Affiliation(s)
- Yulia Merkher
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny 141700, Moscow Region, Russia (S.L.)
- Faculty of Biomedical Engineering, Technion–Israel Institute of Technology, Haifa 3200003, Israel
| | - Elizaveta Kontareva
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny 141700, Moscow Region, Russia (S.L.)
| | - Anastasia Alexandrova
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny 141700, Moscow Region, Russia (S.L.)
| | - Rajesha Javaraiah
- Department of Biochemistry, Yuvaraja’s College, University of Mysore Mysuru, Karnataka 570005, India
| | - Margarita Pustovalova
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny 141700, Moscow Region, Russia (S.L.)
- State Research Center-Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency (SRC-FMBC), Moscow 123098, Russia
| | - Sergey Leonov
- School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny 141700, Moscow Region, Russia (S.L.)
- State Research Center-Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency (SRC-FMBC), Moscow 123098, Russia
- Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino 142290, Moscow Region, Russia
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3
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Yang MH, Ha IJ, Ahn J, Kim CK, Lee M, Ahn KS. Potential function of loliolide as a novel blocker of epithelial-mesenchymal transition in colorectal and breast cancer cells. Cell Signal 2023; 105:110610. [PMID: 36707041 DOI: 10.1016/j.cellsig.2023.110610] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/20/2023] [Accepted: 01/21/2023] [Indexed: 01/27/2023]
Abstract
Loliolide (LL), a naturally occurring monoterpenoid lactone isolated from Vicia tenuifolia Roth, can exhibit numerous pharmacological effects such as those related to anti-Parkinson, anti-oxidant, anti-cholinesterase, and anti-depressant. Epithelial-mesenchymal transition (EMT) plays a pivotal role in regulating tumor metastasis. CXCR4 and CXCR7 are G-protein-coupled receptors (GPRs), which can be stimulated by CXCL12. CXCL12/CXCR4/CXCXR7 axis can cause activation of multiple pathways including MAPKs, JAK/STAT pathway, and manganese superoxide dismutase (MnSOD) signaling. These events can initiate EMT process and induce cell invasion and migration. Here, we investigated whether LL can modulate the CXCR4 and CXCR7 and EMT process in colon cancer and breast cancer cells. We found that LL suppressed levels of CXCR4 and CXCR7, and exerted an inhibitory effect on these chemokines even after stimulation by CXCL12. LL suppressed expression of MnSOD and mesenchymal markers, whereas induced epithelial markers. In addition, LL significantly attenuated cellular invasion, migration, and metastasis. We noted that LL inhibited CXCR4/7 and EMT process even after stimulation of CXCL12 and MnSOD overexpression. Therefore, in this study, we provide evidences that targeting CXCR4/7 and MnSOD could inhibit the invasion, migration, and metastasis of cancer cells as well as negatively regulate the EMT process. Overall, our study suggested that LL might act as a potent suppressor of EMT process against colon and breast cancer cells.
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Affiliation(s)
- Min Hee Yang
- KHU-KIST Department of Converging Science and Technology and Department of Science in Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - In Jin Ha
- Korean Medicine Clinical Trial Center (K-CTC), Korean Medicine Hospital, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jeongjun Ahn
- College of Pharmacy, Sunchon National University, 255 Jungangno, Suncheon-si, Jeonnam 57922, Republic of Korea.
| | - Chang-Kwon Kim
- College of Pharmacy, Sunchon National University, 255 Jungangno, Suncheon-si, Jeonnam 57922, Republic of Korea.
| | - Mina Lee
- College of Pharmacy, Sunchon National University, 255 Jungangno, Suncheon-si, Jeonnam 57922, Republic of Korea.
| | - Kwang Seok Ahn
- KHU-KIST Department of Converging Science and Technology and Department of Science in Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea.
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4
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miR-541-3p enhances the radiosensitivity of prostate cancer cells by inhibiting HSP27 expression and downregulating β-catenin. Cell Death Discov 2021; 7:18. [PMID: 33462201 PMCID: PMC7813831 DOI: 10.1038/s41420-020-00387-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 11/11/2020] [Accepted: 12/07/2020] [Indexed: 01/07/2023] Open
Abstract
Heat shock protein 27 (HSP27), a regulator of cell survival, can enhance the resistance of cancer cells to radiotherapy. As microRNA-541-3p (miR-541-3p) was recently predicted to be a putative upstream modulator of HSP27, the present study was designed to investigate the function and mechanism underlying how miR-541-3p modulates the radiosensitivity of prostate cancer (PCa) cells by regulating HSP27. Through quantitative PCR, miR-541-3p was determined to be poorly expressed in PCa tissues relative to normal controls, whereas its expression was enhanced after radiotherapy. Consistently, miR-541-3p expression levels in PCa cells were elevated after radiation. Cell viability and proliferation and apoptosis under radiation were subsequently evaluated in response to loss-of-function of miR-541-3p. It was found that inhibition of miR-541-3p facilitated the viability and proliferation of PCa cells and promoted their apoptosis post radiation, hence reducing the radiosensitivity of LNCaP cells. Dual-luciferase reporter assay identified that miR-541-3p negatively regulated the HSP27 mRNA expression by targeting its 3'-UTR. Meanwhile, miR-541-3p overexpression inhibited the β-catenin expression by targeting HSP27. Furthermore, HSP27 or β-catenin overexpression was noted to significantly reverse the miR-541-3p-mediated changes in the biological functions of PCa cells post radiation, suggesting that HSP27-dependent activation of β-catenin might be the mechanism responsible for the promotive effect of miR-541-3p on radiosensitivity. Collectively, this study suggests that miR-541-3p specifically inhibits the HSP27 expression and downregulates β-catenin, thereby enhancing the radiosensitivity of PCa cells. Our findings highlight the underlying mechanism of the miR-541-3p/HSP27/Wnt/β-catenin axis regarding radiotherapy for PCa.
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Yang J, Lin P, Yang M, Liu W, Fu X, Liu D, Tao L, Huo Y, Zhang J, Hua R, Zhang Z, Li Y, Wang L, Xue J, Li H, Sun Y. Integrated genomic and transcriptomic analysis reveals unique characteristics of hepatic metastases and pro-metastatic role of complement C1q in pancreatic ductal adenocarcinoma. Genome Biol 2021; 22:4. [PMID: 33397441 PMCID: PMC7780398 DOI: 10.1186/s13059-020-02222-w] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 12/07/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers due to its high metastasis rate in the liver. However, little is known about the molecular features of hepatic metastases due to difficulty in obtaining fresh tissues and low tumor cellularity. RESULTS We conduct exome sequencing and RNA sequencing for synchronous surgically resected primary tumors and the paired hepatic metastases from 17 hepatic oligometastatic pancreatic ductal adenocarcinoma and validate our findings in specimens from 35 of such cases. The comprehensive analysis of somatic mutations, copy number alterations, and gene expressions show high similarity between primary tumors and hepatic metastases. However, hepatic metastases also show unique characteristics, such as a higher degree of 3p21.1 loss, stronger abilities of proliferation, downregulation of epithelial to mesenchymal transition activity, and metabolic rewiring. More interesting, altered tumor microenvironments are observed in hepatic metastases, especially a higher proportion of tumor infiltrating M2 macrophage and upregulation of complement cascade. Further experiments demonstrate that expression of C1q increases in primary tumors and hepatic metastases, C1q is mainly produced by M2 macrophage, and C1q promotes migration and invasion of PDAC cells. CONCLUSION Taken together, we find potential factors that contribute to different stages of PDAC metastasis. Our study broadens the understanding of molecular mechanisms driving PDAC metastasis.
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Affiliation(s)
- Jianyu Yang
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Ping Lin
- CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Minwei Yang
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Wei Liu
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Xueliang Fu
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Dejun Liu
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Lingye Tao
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Yanmiao Huo
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Junfeng Zhang
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Rong Hua
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Zhigang Zhang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Yixue Li
- CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China.
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
- Collaborative Innovation Center for Genetics and Development, Fudan University, Shanghai, 200032, China.
- Shanghai Center for Bioinformation Technology, Shanghai Academy of Science & Technology, Shanghai, 201203, China.
| | - Liwei Wang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China.
- Department of Oncology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.
| | - Jing Xue
- State Key Laboratory of Oncogenes and Related Genes, Renji-Med X Clinical Stem Cell Research Center, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine Affiliated Renji Hospital, Shanghai, 200240, China.
| | - Hong Li
- CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China.
| | - Yongwei Sun
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.
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Together we stand, apart we fall: how cell-to-cell contact/interplay provides resistance to ferroptosis. Cell Death Dis 2020; 11:789. [PMID: 32968052 PMCID: PMC7511929 DOI: 10.1038/s41419-020-02994-w] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/04/2020] [Accepted: 09/07/2020] [Indexed: 12/12/2022]
Abstract
Contextualisation of the new type of cell death called “ferroptosis” opened a completely new avenue for the development of anti-cancer therapies. Cumulative fundamental research dating back to the mid-20th century, crowned by the extraordinary work of the group led by Dr. Stockwell from Columbia University in 2012, finally got its candidature to be applied in the clinical settings. Although the potential for clinical importance is undoubtedly growing every day, as showed by the increasing number of papers dealing with ferroptosis and its applications, long experience of cancer research and treatment taught us that caution is still necessary. The plasticity of the tumour cells, particularly acute, along with its involvement in the resistance mechanisms, that have been seen, to greater or lesser extent, for almost all currently used therapies, represents the biggest fascinations in biomedical research field and also the biggest challenge to achieving cures in cancer patients. Accordingly, the main features of fundamental research have to be vigilance and anticipation. In this review, we tried to summarize the literature data, accumulated in the past couple of years, which point out the pitfalls in which “ferroptosis inducers” can fall if used prematurely in the clinical settings, but at the same time can provide a great advantage in the exhausting battle with cancer resistance. This is the first comprehensive review focusing on the effects of the cell-to-cell contact/interplay in the development of resistance to ferroptosis, while the contribution of cell-born factors has been summarized previously so here we just listed them.
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Identification of Matrine as a Novel Regulator of the CXCR4 Signaling Axis in Tumor Cells. Int J Mol Sci 2020; 21:ijms21134731. [PMID: 32630806 PMCID: PMC7370290 DOI: 10.3390/ijms21134731] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 06/29/2020] [Accepted: 06/30/2020] [Indexed: 12/22/2022] Open
Abstract
Matrine, a quinolizidine alkaloid, is commonly employed for treating various viral and inflammatory disorders. Here, we have evaluated matrine for its activity on C-X-C chemokine receptor type 4 (CXCR4) and matrix metalloproteinases (MMP-9/2) expression, and its potential to affect tumor metastasis and invasion. The effects of matrine on CXCR4, MMP-9/2, and nuclear factor κB (NF-κB) activation in lung (A549), prostate (DU145), and pancreas (MIA PaCa-2) cells were investigated by diverse techniques. The expression level of CXCR4 and MMP-9/2 was analyzed by western blot analysis and reverse transcription polymerase chain reaction. NF-κB activation was also evaluated by western blot analysis, electrophoretic mobility shift assay as well as immunocytochemical experiments. Furthermore, we monitored cell invasion and metastasis activities by wound healing and Boyden chamber assays. We noted that matrine induced a down-regulation of CXCR4 and MMP-9/2 at both protein and mRNA levels. In addition, matrine negatively regulated human epidermal growth factor receptor 2 (HER2) and C-X-C Motif Chemokine Ligand 12 (CXCL12)-induced CXCR4 expression. Moreover, NF-κB suppression by matrine led to inhibition of metastatic potential of tumor cells. Our results suggest that matrine can block the cancer metastasis through the negative regulation of CXCR4 and MMP-9/2 and consequently it can be considered as a potential candidate for cancer therapy.
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8
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Genome remodeling upon mesenchymal tumor cell fusion contributes to tumor progression and metastatic spread. Oncogene 2020; 39:4198-4211. [PMID: 32242148 DOI: 10.1038/s41388-020-1276-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 12/17/2022]
Abstract
Cell fusion in tumor progression mostly refers to the merging of a cancer cell with a cell that has migration and immune escape capabilities such as macrophages. Here we show that spontaneous hybrids made from the fusion of transformed mesenchymal cells with partners from the same lineage undergo nonrecurrent large-scale genomic rearrangements, leading to the creation of highly aneuploid cells with novel phenotypic traits, including metastatic spreading capabilities. Moreover, in contrast to their parents, hybrids were the only cells able to recapitulate in vivo all features of human pleomorphic sarcomas, a rare and genetically complex mesenchymal tumor. Hybrid tumors not only displayed specific mesenchymal markers, but also combined a complex genetic profile with a highly metastatic behavior, like their human counterparts. Finally, we provide evidence that patient-derived pleomorphic sarcoma cells are inclined to spontaneous cell fusion. The resulting hybrids also gain in aggressiveness, exhibiting superior growth capacity in mouse models. Altogether, these results indicate that cell fusion has the potential to promote cancer progression by increasing growth and/or metastatic capacities, regardless of the nature of the companion cell. Moreover, such events likely occur upon sarcoma development, paving the way for better understanding of the biology, and aggressiveness of these tumors.
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Jiménez-Zenteno AK, Cerf A. Liquid Biopsy Based on Circulating Cancer-Associated Cells: Bridging the Gap from an Emerging Concept to a Mainstream Tool in Precision Medicine. ACTA ACUST UNITED AC 2019; 4:e1900164. [PMID: 32293131 DOI: 10.1002/adbi.201900164] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 10/15/2019] [Indexed: 01/01/2023]
Abstract
The concept of liquid biopsy and the isolation and analysis of circulating biomarkers from blood samples is proposed as a surrogate to solid biopsies and can have the potential to revolutionize the management of patients with cancer. The relevance of circulating tumor cells (CTCs) and the importance of the information they carry is acknowledged by the medical community. But what are the barriers to clinical adoption? This review draws a panorama of the biological implications of CTCs, their physical and biochemical properties, and the current technological bottlenecks for their analysis in relation with the medical needs. Keys and considerations to bridge the technological and clinical gaps that still need to be overcome to be able to introduce CTCs in clinical routine are finally synthesized.
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Affiliation(s)
| | - Aline Cerf
- Université de Toulouse, CNRS, 7 Avenue du Colonel Roche, 31400, Toulouse, France
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Nanduri LK, Hissa B, Weitz J, Schölch S, Bork U. The prognostic role of circulating tumor cells in colorectal cancer. Expert Rev Anticancer Ther 2019; 19:1077-1088. [PMID: 31778322 DOI: 10.1080/14737140.2019.1699065] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction: Metastasis is the main cause of cancer-associated death in colorectal cancer (CRC). The presence of circulating tumor cells (CTC) in the blood is associated with an increased risk of recurrence and poor prognosis. The clinical significance of CTCs as a novel biomarker has been extensively studied in the last decade. It has been shown that CTC detection applies to early cancer detection. The presence of CTCs is associated with metastatic spread and poor survival and is also useful as a marker for therapy response.Areas covered: We summarize the role of CTC in CRC, their clinical significance, current methods for CTC detection and challenges as well as future perspectives of CTC research.Expert commentary: The clinical significance of CTC in CRC patients is well established. Although insightful, the available marker-based approaches hampered our understanding of the CTCs and their biology, as such approaches do not take into account the heterogeneity of these cell populations. New technologies should expand the marker-based detection to multi biomarker-based approaches together with recent technological advances in microfluidics for single cell enrichment and analysis.
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Affiliation(s)
- Lahiri Kanth Nanduri
- Department of Gastrointestinal-, Thoracic- and Vascular Surgery, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.,German Cancer Consortium, Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Barbara Hissa
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Jürgen Weitz
- Department of Gastrointestinal-, Thoracic- and Vascular Surgery, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.,German Cancer Consortium, Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Sebastian Schölch
- Department of Gastrointestinal-, Thoracic- and Vascular Surgery, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.,German Cancer Consortium, Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Ulrich Bork
- Department of Gastrointestinal-, Thoracic- and Vascular Surgery, Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
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11
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Vicente D, Lee AJ, Hall CS, Lucci A, Lee JE, Kim MP, Katz MH, Hurd MW, Maitra A, Rhim, MD AD, Tzeng CWD. Circulating Tumor Cells and Transforming Growth Factor Beta in Resected Pancreatic Adenocarcinoma. J Surg Res 2019; 243:90-99. [DOI: 10.1016/j.jss.2019.04.090] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/05/2019] [Accepted: 04/30/2019] [Indexed: 12/22/2022]
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12
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Mahadevan KK, Arora KS, Amzallag A, Williams E, Kulkarni AS, Fernandez-Del Castillo C, Lillemoe KD, Bardeesy N, Hong TS, Ferrone CR, Ting DT, Deshpande V. Quasimesenchymal phenotype predicts systemic metastasis in pancreatic ductal adenocarcinoma. Mod Pathol 2019; 32:844-854. [PMID: 30683911 PMCID: PMC7755428 DOI: 10.1038/s41379-018-0196-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 12/04/2018] [Accepted: 12/05/2018] [Indexed: 01/07/2023]
Abstract
Metastasis following surgical resection is a leading cause of mortality in pancreatic ductal adenocarcinoma. Epithelial-mesenchymal transition is thought to play an important role in metastasis, although its clinical relevance in metastasis remains uncertain. We evaluated a panel of RNA in-situ hybridization probes for epithelial-mesenchymal transition-related genes expressed in circulating tumor cells. We assessed the predictive value of this panel for metastasis in pancreatic ductal adenocarcinoma and, to determine if the phenotype is generalizable between cancers, in colonic adenocarcinoma. One hundred fifty-eight pancreatic ductal adenocarcinomas and 205 colonic adenocarcinomas were classified as epithelial or quasimesenchymal phenotype using dual colorimetric RNA-in-situ hybridization. SMAD4 expression on pancreatic ductal adenocarcinomas was assessed by immunohistochemistry. Pancreatic ductal adenocarcinomas with quasimesenchymal phenotype had a significantly shorter disease-specific survival (P = 0.031) and metastasis-free survival (P = 0.0001) than those with an epithelial phenotype. Pancreatic ductal adenocarcinomas with SMAD4 loss also had lower disease-specific survival (P = 0.041) and metastasis-free survival (P = 0.001) than those with intact SMAD4. However, the quasimesenchymal phenotype proved a more robust predictor of metastases-area under the curve for quasimesenchymal = 0.8; SMAD4 = 0.6. The quasimesenchymal phenotype also predicted metastasis-free survival (P = 0.004) in colonic adenocarcinoma. Epithelial-mesenchymal transition defined two phenotypes with distinct metastatic capabilities-epithelial phenotype tumors with predominantly organ-confined disease and quasimesenchymal phenotype with high risk of metastatic disease in two epithelial malignancies. Collectively, this work validates the relevance of epithelial-mesenchymal transition in human gastrointestinal tumors.
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Affiliation(s)
- Krishnan K Mahadevan
- Department of Pathology, Massachusetts General Hospital, Boston, MA and Harvard Medical School, Boston, MA, USA
| | - Kshitij S Arora
- Department of Pathology, Massachusetts General Hospital, Boston, MA and Harvard Medical School, Boston, MA, USA
| | - Arnaud Amzallag
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA and Harvard Medical School, Boston, MA, USA
| | - Erik Williams
- Department of Pathology, Massachusetts General Hospital, Boston, MA and Harvard Medical School, Boston, MA, USA
| | - Anupriya S Kulkarni
- Department of Medicine, Division of Oncology, Massachusetts General Hospital, Boston, MA and Harvard Medical School, Boston, MA, USA
| | | | - Keith D Lillemoe
- Department of Surgery, Massachusetts General Hospital, Boston, MA and Harvard Medical School, Boston, MA, USA
| | - Nabeel Bardeesy
- Department of Medicine, Division of Oncology, Massachusetts General Hospital, Boston, MA and Harvard Medical School, Boston, MA, USA
| | - Theodore S Hong
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA and Harvard Medical School, Boston, MA, USA
| | - Cristina R Ferrone
- Department of Surgery, Massachusetts General Hospital, Boston, MA and Harvard Medical School, Boston, MA, USA
| | - David T Ting
- Department of Medicine, Division of Oncology, Massachusetts General Hospital, Boston, MA and Harvard Medical School, Boston, MA, USA
| | - Vikram Deshpande
- Department of Pathology, Massachusetts General Hospital, Boston, MA and Harvard Medical School, Boston, MA, USA.
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13
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Abstract
Cancer-initiating cells (CIC) are the driving force in tumor progression. There is strong evidence that CIC fulfill this task via exosomes (TEX), which modulate and reprogram stroma, nontransformed cells, and non-CIC. Characterization of CIC, besides others, builds on expression of CIC markers, many of which are known as metastasis-associated molecules. We here discuss that the linkage between CIC/CIC-TEX and metastasis-associated molecules is not fortuitously, but relies on the contribution of these markers to TEX biogenesis including loading and TEX target interactions. In addition, CIC markers contribute to TEX binding- and uptake-promoted activation of signaling cascades, transcription initiation, and translational control. Our point of view will be outlined for pancreas and colon CIC highly expressing CD44v6, Tspan8, EPCAM, claudin7, and LGR5, which distinctly but coordinately contribute to tumor progression. Despite overwhelming progress in unraveling the metastatic cascade and the multiple tasks taken over by CIC-TEX, there remains a considerable gap in linking CIC biomarkers, TEX, and TEX-initiated target modulation with metastasis. We will try to outline possible bridges, which could allow depicting pathways for new and expectedly powerful therapeutic interference with tumor progression.
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Affiliation(s)
- Zhe Wang
- Department of Oncology, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China.
| | - Margot Zöller
- Department of Oncology, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China.
- Pancreas Section, University Hospital of Surgery, Heidelberg, Germany.
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14
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Li Y, Liang R, Zhang X, Wang J, Shan C, Liu S, Li L, Zhang S. Copper Chaperone for Superoxide Dismutase Promotes Breast Cancer Cell Proliferation and Migration via ROS-Mediated MAPK/ERK Signaling. Front Pharmacol 2019; 10:356. [PMID: 31024318 PMCID: PMC6460305 DOI: 10.3389/fphar.2019.00356] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 03/21/2019] [Indexed: 12/28/2022] Open
Abstract
Copper chaperone for superoxide dismutase (CCS) is a critical component of oxidation–reduction system and functions as a potential tumor promoter in several cancers. However, the function and clinical significance of CCS in breast cancer remain unclear. Here, we found CCS was highly expressed in breast cancer, where it promoted breast cancer cell proliferation and migration. Suppression of CCS expression was sufficient to attenuate the phosphorylation level of ERK1/2 and increase the accumulation of reactive oxygen species (ROS). Mechanistically, we found that knockdown of CCS decreases the activity of ERK1/2 mediated by the accumulation of ROS, which leads to the inhibition of cell proliferation and migration. In summary, these results indicated that CCS promotes the growth and migration of breast cancer cells via regulating the ERK1/2 activity mediated by ROS.
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Affiliation(s)
- Yanping Li
- Biomedical Translational Research Institute, Jinan University, Guangzhou, China
| | - Ronghui Liang
- Biomedical Translational Research Institute, Jinan University, Guangzhou, China
| | - Xiaoya Zhang
- Biomedical Translational Research Institute, Jinan University, Guangzhou, China
| | - Jiyan Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, China
| | - Changliang Shan
- Biomedical Translational Research Institute, Jinan University, Guangzhou, China.,State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, China
| | - Shuangping Liu
- Department of Pathology, Medical School, Dalian University, Dalian, China
| | - Leilei Li
- Biomedical Translational Research Institute, Jinan University, Guangzhou, China
| | - Shuai Zhang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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15
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Protein Phosphatase 1 Regulatory Subunit SDS22 Inhibits Breast Cancer Cell Tumorigenesis by Functioning as a Negative Regulator of the AKT Signaling Pathway. Neoplasia 2018; 21:30-40. [PMID: 30500680 PMCID: PMC6262785 DOI: 10.1016/j.neo.2018.10.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 10/30/2018] [Accepted: 10/31/2018] [Indexed: 01/22/2023] Open
Abstract
Protein phosphatases play a crucial role in cell cycle progression, cell survival, cellular signaling, and genomic integrity. The protein phosphatase 1 (PP1) regulatory subunit SDS22 plays a significant role in cell cycle progression. A recent study showed that SDS22 plays a vital role in epithelial integrity and tumor suppression in Drosophila. However, its tumor suppressive activity remains obscure in the mammalian system. Here, for the first time, we show that SDS22 inhibits the growth of breast cancer cells through induction of apoptosis. SDS22 negatively regulates the AKT kinase signaling pathway through PP1. SDS22 associates predominantly with AKT and dephosphorylates the phospho Thr308 and phospho Ser473 through PP1 and hence abrogates the cell migration, invasion, and tumor growth. Thus, our study deciphers the long-standing question of how PP1 negatively regulates the AKT signaling pathway. Further, we observed a significant converse correlation in the expression levels of SDS22 and phospho form of AKT with reduced levels of SDS22 in the higher grades of cancer. Overall, our results suggest that SDS22 could be a putative tumor suppressor and replenishment of SDS22 would be an important strategy to restrict the tumor progression.
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16
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Bisogno LS, Friedersdorf MB, Keene JD. Ras Post-transcriptionally Enhances a Pre-malignantly Primed EMT to Promote Invasion. iScience 2018; 4:97-108. [PMID: 30240757 PMCID: PMC6147080 DOI: 10.1016/j.isci.2018.05.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 02/12/2018] [Accepted: 05/15/2018] [Indexed: 02/06/2023] Open
Abstract
Epithelial-to-mesenchymal transition (EMT) is integral to cancer progression, with considerable evidence that EMT has multiple intermediary stages. Understanding the mechanisms of this stepwise activation is of great interest. We recreated a genetically defined model in which primary cells were immortalized, resulting in migratory capacity, and subsequently H-Ras-transformed, causing malignancy and invasion. To determine the mechanisms coordinating stepwise malignancy, we quantified the changes in messenger RNA (mRNA) and protein abundance. During immortalization, we found dramatic changes in mRNA, consistent with EMT, which correlated with protein abundance. Many of these same proteins also changed following Ras transformation, suggesting that pre-malignant cells were primed for malignant conversion. Unexpectedly, changes in protein abundance did not correlate with changes in mRNA following transformation. Importantly, proteins involved in cellular adhesion and cytoskeletal structure decreased during immortalization and decreased further following Ras transformation, whereas their encoding mRNAs only changed during the immortalization step. Thus, Ras induced EMT-associated invasion via post-transcriptional mechanisms in primed pre-malignant cells. Two-stage progressive cell culture model demonstrates partial EMT states Pre-malignant immortalization alters RNA abundance to induce cell migration Ras transformation alters protein abundance, but not RNA, to induce cell invasion Both stages cooperate to regulate protein expression of adhesion molecules and RBPs
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Affiliation(s)
- Laura S Bisogno
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Matthew B Friedersdorf
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Jack D Keene
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA.
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Liu X, Zhao W, Wang W, Lin S, Yang L. Puerarin suppresses LPS-induced breast cancer cell migration, invasion and adhesion by blockage NF-κB and Erk pathway. Biomed Pharmacother 2017; 92:429-436. [PMID: 28558356 DOI: 10.1016/j.biopha.2017.05.102] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 05/15/2017] [Accepted: 05/22/2017] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Chronic inflammation is a major risk factor for the development and metastatic progression of breast cancer. Puerarin has long been used as traditional Chinese medicine, which possesses manifold physiological activities, including anti-inflammation and anti-cancer activities. However, its anti-cancer metastasis activity in breast cancer cell inflammation-mediated have not been studied. METHODS Cell viability was detected with Cell Counting Kit (CCK)-8. Transwell migration and invasion assay were performed to evaluate cell migration and invasion, respectively. Enzyme-linked immunosorbent assay (ELISA) was conducted to analysis the expression of inflammatory factor. In addition, mRNA and protein levels of related cytokines were determined by qRT- PCR assay and western blot analysis, respectively. RESULTS In this study, puerarin significantly inhibited lipopolysaccharide (LPS)-induced MCF-7 and MDA-MB-231 cell migration, invasion and adhesion. The mRNA and protein levels revealed that puerarin treatment effectively negated the expression of CCR7, CXCR4, MMP-2, MMP-9, ICAM and VCAM in LPS- activated MCF-7 and MDA-MB-231 cells. Further, the expression of inflammatory factor TNF-α and IL-6 in cell culture supernatant remarkably reduced. Finally, the result indicated that puerarin abrogated the NF-κB activation in breast cancer cells stimulated by LPS, which is mediated through inhibition of phosphorylation of p65 and IκBα. Also, puerarin inhibited phosphorylation of Erk in breast cancer cells LPS-induced. CONCLUSIONS This present study revealed that puerarin might be a novel therapeutic drug for breast cancer treatment.
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Affiliation(s)
- Xingxiang Liu
- Inspection Center, Huai'an No 4 People's Hospital, Huai'an 223002, China
| | - Wei Zhao
- Department of Laboratory, Nanjing Maternity and Child Health Care Hospital, Nanjing 210000, China
| | - Wei Wang
- Department of Pathology, Nanjing Maternity and Child Health Care Hospital, Nanjing 210000, China
| | - Sen Lin
- Department of Laboratory, Huai'an Hospital, Xuzhou Medical University, Huai'an 223002, China.
| | - Liu Yang
- Department of General Surgery, Jiangsu Cancer Hospital, Nanjing 210000, China.
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18
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Oh PS, Kim HS, Kim EM, Hwang H, Ryu HH, Lim S, Sohn MH, Jeong HJ. Inhibitory effect of blue light emitting diode on migration and invasion of cancer cells. J Cell Physiol 2017; 232:3444-3453. [PMID: 28098340 DOI: 10.1002/jcp.25805] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 01/14/2017] [Accepted: 01/17/2017] [Indexed: 12/20/2022]
Abstract
The aim of this study was to determine the effects and molecular mechanism of blue light emitting diode (LED) in tumor cells. A migration and invasion assay for the metastatic behavior of mouse colon cancer CT-26 and human fibrosarcoma HT-1080 cells was performed. Cancer cell migration-related proteins were identified by obtaining a 2-dimensional gel electrophoresis (2-DE) in total cellular protein profile of blue LED-irradiated cancer cells, followed by matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) analysis of proteins. Protein levels were examined by immunoblotting. Irradiation with blue LED inhibited CT-26 and HT-1080 cell migration and invasion. The anti-metastatic effects of blue LED irradiation were associated with inhibition of matrix metalloproteinase (MMP)-2 and MMP-9 expression. P38 MAPK phosphorylation was increased in blue LED-irradiated CT-26 and HT-1080 cells, but was inhibited after pretreatment with SB203580, a specific inhibitor of p38 MAPK. Inhibition of p38 MAPK phosphorylation by SB203580 treatment increased number of migratory cancer cells in CT-26 and HT-1080 cells, indicating that blue LED irradiation inhibited cancer cell migration via phosphorylation of p38 MAPK. Additionally blue LED irradiation of mice injected with CT-26 cells expressing luciferase decreased early stage lung metastasis compared to untreated control mice. These results indicate that blue LED irradiation inhibits cancer cell migration and invasion in vitro and in vivo.
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Affiliation(s)
- Phil-Sun Oh
- Molecular Imaging and Therapeutic Medicine Research Center, Cyclotron Research Center, Institute for Medical Sciences, Biomedical Research Institute, Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
| | - Hyun-Soo Kim
- Molecular Imaging and Therapeutic Medicine Research Center, Cyclotron Research Center, Institute for Medical Sciences, Biomedical Research Institute, Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
| | - Eun-Mi Kim
- Molecular Imaging and Therapeutic Medicine Research Center, Cyclotron Research Center, Institute for Medical Sciences, Biomedical Research Institute, Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
| | - Hyosook Hwang
- Molecular Imaging and Therapeutic Medicine Research Center, Cyclotron Research Center, Institute for Medical Sciences, Biomedical Research Institute, Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
| | - Hyang Hwa Ryu
- Molecular Imaging and Therapeutic Medicine Research Center, Cyclotron Research Center, Institute for Medical Sciences, Biomedical Research Institute, Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
| | - SeokTae Lim
- Molecular Imaging and Therapeutic Medicine Research Center, Cyclotron Research Center, Institute for Medical Sciences, Biomedical Research Institute, Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
| | - Myung-Hee Sohn
- Molecular Imaging and Therapeutic Medicine Research Center, Cyclotron Research Center, Institute for Medical Sciences, Biomedical Research Institute, Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
| | - Hwan-Jeong Jeong
- Molecular Imaging and Therapeutic Medicine Research Center, Cyclotron Research Center, Institute for Medical Sciences, Biomedical Research Institute, Department of Nuclear Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Republic of Korea
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CDK4/6-dependent activation of DUB3 regulates cancer metastasis through SNAIL1. Nat Commun 2017; 8:13923. [PMID: 28067227 PMCID: PMC5228031 DOI: 10.1038/ncomms13923] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 11/10/2016] [Indexed: 12/12/2022] Open
Abstract
Tumour metastasis, the spread of cancer cells from the original tumour site followed by growth of secondary tumours at distant organs, is the primary cause of cancer-related deaths and remains poorly understood. Here we demonstrate that inhibition of CDK4/6 blocks breast tumour metastasis in the triple-negative breast cancer model, without affecting tumour growth. Mechanistically, we identify a deubiquitinase, DUB3, as a target of CDK4/6; CDK4/6-mediated activation of DUB3 is essential to deubiquitinate and stabilize SNAIL1, a key factor promoting epithelial-mesenchymal transition and breast cancer metastasis. Overall, our study establishes the CDK4/6-DUB3 axis as an important regulatory mechanism of breast cancer metastasis and provides a rationale for potential therapeutic interventions in the treatment of breast cancer metastasis.
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20
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Lewis AR, Valle JW, McNamara MG. Pancreatic cancer: Are "liquid biopsies" ready for prime-time? World J Gastroenterol 2016; 22:7175-7185. [PMID: 27621566 PMCID: PMC4997639 DOI: 10.3748/wjg.v22.i32.7175] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 06/10/2016] [Accepted: 07/06/2016] [Indexed: 02/06/2023] Open
Abstract
Pancreatic cancer is a disease that carries a poor prognosis. Accurate tissue diagnosis is required. Tumours contain a high content of stromal tissue and therefore biopsies may be inconclusive. Circulating tumour cells (CTCs) have been investigated as a potential “liquid biopsy” in several malignancies and have proven to be of prognostic value in breast, prostate and colorectal cancers. They have been detected in patients with localised and metastatic pancreatic cancer with sensitivities ranging from 38%-100% using a variety of platforms. Circulating tumour DNA (ctDNA) has also been detected in pancreas cancer with a sensitivity ranging from 26%-100% in studies across different platforms and using different genetic markers. However, there is no clear consensus on which platform is the most effective for detection, nor which genetic markers are the most useful to use. Potential roles of liquid biopsies include diagnosis, screening, guiding therapies and prognosis. The presence of CTCs or ctDNA has been shown to be of prognostic value both at diagnosis and after treatment in patients with pancreatic cancer. However, more prospective studies are required before this promising technology is ready for adoption into routine clinical practice.
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21
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Lee H, Ko JH, Baek SH, Nam D, Lee SG, Lee J, Yang WM, Um JY, Kim SH, Shim BS, Ahn KS. Embelin Inhibits Invasion and Migration of MDA-MB-231 Breast Cancer Cells by Suppression of CXC Chemokine Receptor 4, Matrix Metalloproteinases-9/2, and Epithelial-Mesenchymal Transition. Phytother Res 2016; 30:1021-32. [DOI: 10.1002/ptr.5612] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/18/2016] [Accepted: 02/29/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Hanwool Lee
- Department of Cancer Preventive Material Development, Graduate School; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Jeong-Hyeon Ko
- Department of Cancer Preventive Material Development, Graduate School; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Seung Ho Baek
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Dongwoo Nam
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Seok Geun Lee
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Junhee Lee
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Woong Mo Yang
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Jae-Young Um
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Sung-Hoon Kim
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Bum Sang Shim
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
| | - Kwang Seok Ahn
- College of Korean Medicine; Kyung Hee University; 24 Kyungheedae-ro Dongdaemun-gu Seoul 130-701 Republic of Korea
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22
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Bortolato A, Deflorian F, Weiss DR, Mason JS. Decoding the Role of Water Dynamics in Ligand–Protein Unbinding: CRF1R as a Test Case. J Chem Inf Model 2015; 55:1857-66. [DOI: 10.1021/acs.jcim.5b00440] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Andrea Bortolato
- Heptares Therapeutics Ltd., BioPark, Broadwater Road, Welwyn Garden City, Hertfordshire AL7 3AX, U.K
| | - Francesca Deflorian
- Heptares Therapeutics Ltd., BioPark, Broadwater Road, Welwyn Garden City, Hertfordshire AL7 3AX, U.K
| | - Dahlia R. Weiss
- Heptares Therapeutics Ltd., BioPark, Broadwater Road, Welwyn Garden City, Hertfordshire AL7 3AX, U.K
| | - Jonathan S. Mason
- Heptares Therapeutics Ltd., BioPark, Broadwater Road, Welwyn Garden City, Hertfordshire AL7 3AX, U.K
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23
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Clinical implications of epithelial cell plasticity in cancer progression. Cancer Lett 2015; 366:1-10. [DOI: 10.1016/j.canlet.2015.06.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 05/19/2015] [Accepted: 06/06/2015] [Indexed: 12/18/2022]
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24
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Roccaro AM, Mishima Y, Sacco A, Moschetta M, Tai YT, Shi J, Zhang Y, Reagan MR, Huynh D, Kawano Y, Sahin I, Chiarini M, Manier S, Cea M, Aljawai Y, Glavey S, Morgan E, Pan C, Michor F, Cardarelli P, Kuhne M, Ghobrial IM. CXCR4 Regulates Extra-Medullary Myeloma through Epithelial-Mesenchymal-Transition-like Transcriptional Activation. Cell Rep 2015; 12:622-35. [PMID: 26190113 DOI: 10.1016/j.celrep.2015.06.059] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 06/04/2015] [Accepted: 06/16/2015] [Indexed: 12/29/2022] Open
Abstract
Extra-medullary disease (EMD) in multiple myeloma (MM) is associated with poor prognosis and resistance to chemotherapy. However, molecular alterations that lead to EMD have not been well defined. We developed bone marrow (BM)- and EMD-prone MM syngeneic cell lines; identified that epithelial-to-mesenchymal transition (EMT) transcriptional patterns were significantly enriched in both clones compared to parental cells, together with higher levels of CXCR4 protein; and demonstrated that CXCR4 enhanced the acquisition of an EMT-like phenotype in MM cells with a phenotypic conversion for invasion, leading to higher bone metastasis and EMD dissemination in vivo. In contrast, CXCR4 silencing led to inhibited tumor growth and reduced survival. Ulocuplumab, a monoclonal anti-CXCR4 antibody, inhibited MM cell dissemination, supported by suppression of the CXCR4-driven EMT-like phenotype. These results suggest that targeting CXCR4 may act as a regulator of EMD through EMT-like transcriptional modulation, thus representing a potential therapeutic strategy to prevent MM disease progression.
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Affiliation(s)
- Aldo M Roccaro
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Yuji Mishima
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA; Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo 135-8550, Japan
| | - Antonio Sacco
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Michele Moschetta
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Yu-Tzu Tai
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Jiantao Shi
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02215, USA
| | - Yong Zhang
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Michaela R Reagan
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA; Maine Medical Center Research Institute (MMCRI), Scarborough, ME 04074, USA
| | - Daisy Huynh
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Yawara Kawano
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Ilyas Sahin
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Marco Chiarini
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA; Spedali Civili di Brescia, Centro per la Ricerca Onco-ematologica AIL (CREA), 25123 Brescia, Italy
| | - Salomon Manier
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Michele Cea
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Yosra Aljawai
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Siobhan Glavey
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Elizabeth Morgan
- Department of Pathology, Brigham & Women's Hospital, Boston, MA 02215, USA
| | - Chin Pan
- Bristol-Myers Squibb, Redwood City, CA 94063, USA
| | - Franziska Michor
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02215, USA
| | | | | | - Irene M Ghobrial
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA.
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25
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Vaz AP, Ponnusamy MP, Batra SK. Cancer stem cells and therapeutic targets: an emerging field for cancer treatment. Drug Deliv Transl Res 2015; 3:113-20. [PMID: 24077517 DOI: 10.1007/s13346-012-0095-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Recent paradigm in the field of cancer defines its origin from a small population of fast growing cells known as cancer stem cells (CSCs), and they are mainly responsible for disease aggressiveness, drug resistance and tumor relapse. The existence of CSCs has been proven in different types of cancer and possesses characteristic expression of a wide array of cell surface markers specific to the type of cancer. CSCs have been isolated and enriched using several surface markers in different cancer types. Self-renewal, drug resistance and the ability to transition from epithelial to mesenchymal phenotype are the major features attributed to this fraction of mutated stem cells. The CSC hypothesis proposes that these CSCs mimic stem cells by sharing similar pathways, such as Wnt, SHH, Notch and others. Further, the niche, which in this case is the tumor microenvironment, plays a very important role in the maintenance of CSCs. Altogether, this emerging field of research on CSCs is expected to unveil answers to the most difficult issues of one of the most dreadful diseases called cancer.
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Affiliation(s)
- Arokia Priyanka Vaz
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, U.S.A
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Cordonnier T, Bishop JL, Shiota M, Nip KM, Thaper D, Vahid S, Heroux D, Gleave M, Zoubeidi A. Hsp27 regulates EGF/β-catenin mediated epithelial to mesenchymal transition in prostate cancer. Int J Cancer 2014; 136:E496-507. [DOI: 10.1002/ijc.29122] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 07/28/2014] [Indexed: 12/31/2022]
Affiliation(s)
- Thomas Cordonnier
- Department of Urologic Sciences; The Vancouver Prostate Centre; University of British Columbia; Vancouver British Columbia Canada
| | - Jennifer L. Bishop
- Department of Urologic Sciences; The Vancouver Prostate Centre; University of British Columbia; Vancouver British Columbia Canada
| | - Masaki Shiota
- Department of Urologic Sciences; The Vancouver Prostate Centre; University of British Columbia; Vancouver British Columbia Canada
| | - Ka Mun Nip
- Department of Urologic Sciences; The Vancouver Prostate Centre; University of British Columbia; Vancouver British Columbia Canada
| | - Daksh Thaper
- Department of Urologic Sciences; The Vancouver Prostate Centre; University of British Columbia; Vancouver British Columbia Canada
| | - Sepideh Vahid
- Department of Urologic Sciences; The Vancouver Prostate Centre; University of British Columbia; Vancouver British Columbia Canada
| | - Devon Heroux
- Department of Urologic Sciences; The Vancouver Prostate Centre; University of British Columbia; Vancouver British Columbia Canada
| | - Martin Gleave
- Department of Urologic Sciences; The Vancouver Prostate Centre; University of British Columbia; Vancouver British Columbia Canada
| | - Amina Zoubeidi
- Department of Urologic Sciences; The Vancouver Prostate Centre; University of British Columbia; Vancouver British Columbia Canada
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27
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Selvam AP, Wong J, Flanagan K, Prasad S. Cellular level classification of breast cancer through proteomic markers using nanochannel array sensors. Nanomedicine (Lond) 2014; 9:1957-70. [DOI: 10.2217/nnm.13.152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Aims: A nanochannel-based sensor for cellular level classification of breast cancer metastasis has been designed. Our approach to the classification of cell’s likelihood to metastasize is based on screening for levels of expression of specific proteomic biomarkers associated with breast cancer stem cells. Materials & methods: Proteomic activity for four breast cancer cell lines for three specific markers (PDGFR, ALDH1A1 and ALDH1A3) was quantified. The nanochannel sensor is an electrochemical immunoassay and comprises of alumina nanochannel arrays integrated on to a gold microelectronic platform. The sensor operates on the principle of electrochemical impedance spectroscopy. Results & conclusion: Test cell lysate samples from SUM159 invasive, SUM159 noninvasive, HC1143 and DCIS cell lines were classified as those having a high likelihood of metastases based on the levels of proteomic activity evaluated against the three key markers. The lowest proteomic activity measured was 0.1 ng/ml with PDGFR, 100 ng/ml with ALDH1A1 and 100 ng/ml with ALDH1A3, correlating to the detection of unit stem cell count. Original submitted 9 November 2012; Revised submitted 29 July 2013
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Affiliation(s)
- Anjan Panneer Selvam
- Department of Bioengineering, University of Texas at Dallas, 800 W Campbell Road, Richardson, TX 75080, USA
| | - Justin Wong
- Department of Bioengineering, University of Texas at Dallas, 800 W Campbell Road, Richardson, TX 75080, USA
| | - Kelly Flanagan
- Department of Bioengineering, University of Texas at Dallas, 800 W Campbell Road, Richardson, TX 75080, USA
| | - Shalini Prasad
- Department of Bioengineering, University of Texas at Dallas, 800 W Campbell Road, Richardson, TX 75080, USA
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Kim C, Kim D, Nam D, Chung WS, Ahn KS, Kim SH, Choi SH, Shim BS, Cho SK, Ahn KS. Anti-metastatic effect of supercritical extracts from the Citrus hassaku pericarp via inhibition of C-X-C chemokine receptor type 4 (CXCR4) and matrix metalloproteinase-9 (MMP-9). Phytother Res 2014; 28:1374-82. [PMID: 24638915 DOI: 10.1002/ptr.5140] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 01/12/2014] [Accepted: 02/10/2014] [Indexed: 11/08/2022]
Abstract
The fruit of hassaku (Citrus hassaku Hort. ex Tanaka) is locally known as phalsak in Korea. Recently, the fruit extract has been known to exhibit in vivo preventive effects against UVB-induced pigmentation, antiallergic activity, and enhancement of blood fluidity. However, the exact mechanisms of how supercritical extracts of phalsak peel (SEPS) inhibits tumor metastasis and invasion are still not fully understood. We found that SEPS could downregulate the constitutive expression of both CXCR4 and HER2 in human breast cancer MDA-MB-231 cells as compared with other cells. SEPS also suppressed matrix metalloproteinase-9 (MMP-9) expression and its enzymatic activity under non-cytotoxic concentrations. Neither proteasome inhibition nor lysosomal stabilization had any effect on the SEPS-induced decrease in CXCR4 expression. A detailed study of the underlying molecular mechanisms revealed that the regulation of the downregulation of CXCR4 was at the transcriptional level, as indicated by downregulation of mRNA expression, suppression of NF-κB activity, and inhibition of chromatin immunoprecipitation activity. Suppression of CXCR4 expression by SEPS correlated with the inhibition of CXCL12-stimulated invasion of MDA-MB-231 cells. Overall, our results indicate, for the first time, that SEPS can suppress CXCR4 and MMP-9 expressions through blockade of NF-κB activation and thus has the potential to suppress metastasis of breast cancer.
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Affiliation(s)
- Chulwon Kim
- College of Korean Medicine and Institute of Korean Medicine, Kyung Hee University, 1 Hoegidong Dongdaemungu, Seoul, 130-701, Republic of Korea
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Wang L, Kuang L, Hitron JA, Son YO, Wang X, Budhraja A, Lee JC, Pratheeshkumar P, Chen G, Zhang Z, Luo J, Shi X. Apigenin suppresses migration and invasion of transformed cells through down-regulation of C-X-C chemokine receptor 4 expression. Toxicol Appl Pharmacol 2013; 272:108-16. [PMID: 23743303 DOI: 10.1016/j.taap.2013.05.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 05/14/2013] [Accepted: 05/20/2013] [Indexed: 02/06/2023]
Abstract
Environmental exposure to arsenic is known to cause various cancers. There are some potential relationships between cell malignant transformation and C-X-C chemokine receptor type 4 (CXCR4) expressions. Metastasis, one of the major characteristics of malignantly transformed cells, contributes to the high mortality of cells. CXCR4 and its natural chemokine ligand C-X-C motif ligand 12 (CXCL12) play a critical role in metastasis. Therefore, identification of nutritional factors which are able to inhibit CXCR4 is important for protection from environmental arsenic-induced carcinogenesis and for abolishing metastasis of malignantly transformed cells. The present study demonstrates that apigenin (4',5,7-trihydroxyflavone), a natural dietary flavonoid, suppressed CXCR4 expression in arsenic-transformed Beas-2B cells (B-AsT) and several other types of transformed/cancer cells in a dose- and time-dependent manner. Neither proteasome nor lysosome inhibitor had any effect in reducing the apigenin-induced down-regulation of CXCR4, indicating that apigenin-induced down-regulation of CXCR4 is not due to proteolytic degradation. The down-regulation of CXCR4 is mainly due to the inhibition of nuclear factor κB (NF-κB) transcriptional activity. Apigenin also abolished migration and invasion of transformed cells induced by CXCL12. In a xenograft mouse model, apigenin down-regulated CXCR4 expression and suppressed tumor growth. Taken together, our results show that apigenin is a novel inhibitor of CXCR4 expression. This dietary flavonoid has the potential to suppress migration and invasion of transformed cells and prevent environmental arsenic-induced carcinogenesis.
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Affiliation(s)
- Lei Wang
- Graduate Center for Toxicology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
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Lu X, Yan P, Wang RF, Liu M, Yu MM, Zhang CL. Use of Radioiodinated Peptide Arg-Arg-Leu Targeted to Neovasculari- zation as well as Tumor Cells in Molecular Tumor Imaging. Chin J Cancer Res 2013; 24:52-9. [PMID: 23359762 DOI: 10.1007/s11670-012-0052-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2011] [Accepted: 10/18/2011] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE To explore a tumor peptide imaging agent Arginine-Arginine-Leucine (Tyr-Cys-Gly-Gly-Arg-Arg- Leu-Gly-Gly-Cys, tripeptide RRL [tRRL]) that targeted to tumor cells and tumor-derived endothelial cells (TDECs) and primarily investigate the possible relationship between tRRL and vascular endothelial growth factor receptor 2 (VEGFR-2). METHODS The tRRL sequence motif was identified as a tumor molecular marker specifically binding to TDECs. Tyrosine was conjugated to the amino terminal of RRL (Cys-Gly-Gly-Arg-Arg-Leu-Gly-Gly-Cys) for labeling with radionuclide iodine-131 ((131)I-tRRL). The uptake ability and molecular binding of tRRL to tumor cells and angiogenic endothelium were studied using flow cytometry and radioactivity counter in vitro. Whether VEGFR-2 is the binging site of tRRL was investigated. Biodistribution and single-photon emission computed tomography (SPECT) imaging of (131)I-tRRL were used to evaluate the effectiveness of this new imaging agent to visualize varied tumor xenografts in nude mice. RESULTS In vitro cellular uptake experiments revealed that tRRL could not only adhere to tumor angiogenic endothelial cells but also largely accumulate in malignant tumor cells. VEGFR-2, which is highly expressed on TDECs, was probably not the solely binding ligand for tRRL targeted to tumor angiogenic endothelium. (131)I-tRRL mainly accumulated in tumors in vivo, not other organs at 24 h after injection. SPECT imaging with (131)I-tRRL clearly visualized tumors in nude mice, especially at 24 h. CONCLUSION Radioiodinated tRRL offers a noninvasive nuclear imaging method for functional molecular imaging of tumors targeted to neovascularization, and may be a promising candidate for tumor radioimmunotherapeutic carrier.
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Affiliation(s)
- Xia Lu
- Department of Nuclear Medicine, Peking University First Hospital, Beijing 100034, China ; Radiology Center, Beijing Aerospace General Hospital, Beijing 100076, China ; Key Laboratory of Radiopharmaceuticals (Ministry of Education), College of Chemistry, Beijing Normal University, Beijing 100191, China
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Baek SH, Kim SM, Nam D, Lee JH, Ahn KS, Choi SH, Kim SH, Shim BS, Chang IM, Ahn KS. Antimetastatic effect of nobiletin through the down-regulation of CXC chemokine receptor type 4 and matrix metallopeptidase-9. PHARMACEUTICAL BIOLOGY 2012; 50:1210-1218. [PMID: 22853317 DOI: 10.3109/13880209.2012.664151] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
CONTEXT Nobiletin is one of the citrus bioflavonoids and can be found in citrus fruits such as lemons, oranges, tangerines, and grapefruits. The most studied properties of nobiletin are its anti-inflammatory and anticancer activities. OBJECTIVE The exact mechanisms of how nobiletin inhibits tumor metastasis and invasion are still not fully understood. In this study, we screened various natural compounds to down-modulate the CXC chemokine receptor-4 (CXCR4) and matrix metallopeptidase-9 (MMP-9). MATERIALS AND METHODS The effect of nobiletin on the constitutive expressions of CXCR4 and MMP-9, MMP-9 enzymatic activity, associated nuclear factor κB (NF-κB) and mitogen-activated protein kinases (MAPKs) activation, and tumor cell invasion in human breast cancer cells was investigated. CXCR4 and MMP-9 expression were evaluated via reverse transcription polymerase chain reaction (RT-PCR) and western blotting. NF-κB activation was also evaluated by electrophoretic mobility shift assay (EMSA). In addition, the antimetastatic effects of nobiletin were determined by gelatin zymography and invasion assay. RESULTS Nobiletin down-regulated both the constitutive expressions of CXCR4 and MMP-9 in human breast cancer cells with IC(50) values of 32 and 24 µM, respectively. Nobiletin also suppressed MMP-9 enzymatic activity and tumor cell invasion under noncytotoxic concentrations. Neither proteasome inhibition nor lysosomal stabilization had any effect on the nobiletin-induced decrease in CXCR4 expression. A detailed study of the underlying molecular mechanisms revealed that the regulation of the down-regulation of CXCR4 and MMP-9 were at the transcriptional level, as indicated by the down-regulation of mRNA expression and the suppression of the constitutive NF-κB and MAPKs activation. DISCUSSION AND CONCLUSION Our results indicate, for the first time, that nobiletin is a novel blocker of CXCR4 and MMP-9 expressions and thus has the potential to suppress metastasis of breast cancer.
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Affiliation(s)
- Seung Ho Baek
- Department of Oriental Medicine, College of Oriental Medicine and Institute of Oriental Medicine, Kyung Hee University, Seoul, Republic of Korea
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Through the looking glass: visualizing leukemia growth, migration, and engraftment using fluorescent transgenic zebrafish. Adv Hematol 2012; 2012:478164. [PMID: 22829834 PMCID: PMC3399386 DOI: 10.1155/2012/478164] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 05/23/2012] [Indexed: 01/29/2023] Open
Abstract
Zebrafish have emerged as a powerful model of development and cancer. Human, mouse, and zebrafish malignancies exhibit striking histopathologic and molecular similarities, underscoring the remarkable conservation of genetic pathways required to induce cancer. Zebrafish are uniquely suited for large-scale studies in which hundreds of animals can be used to investigate cancer processes. Moreover, zebrafish are small in size, optically clear during development, and amenable to genetic manipulation. Facile transgenic approaches and new technologies in gene inactivation have provided much needed genomic resources to interrogate the function of specific oncogenic and tumor suppressor pathways in cancer. This manuscript focuses on the unique attribute of labeling leukemia cells with fluorescent proteins and directly visualizing cancer processes in vivo including tumor growth, dissemination, and intravasation into the vasculature. We will also discuss the use of fluorescent transgenic approaches and cell transplantation to assess leukemia-propagating cell frequency and response to chemotherapy.
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Abstract
Metastasis is the leading cause of cancer-associated death but has been difficult to study because it involves a series of rare, stochastic events. To capture these events, we developed a sensitive method to tag and track pancreatic epithelial cells in a mouse model of pancreatic cancer. Tagged cells invaded and entered the bloodstream unexpectedly early, before frank malignancy could be detected by rigorous histologic analysis; this behavior was widely associated with epithelial-to-mesenchymal transition (EMT). Circulating pancreatic cells maintained a mesenchymal phenotype, exhibited stem cell properties, and seeded the liver. EMT and invasiveness were most abundant at inflammatory foci, and induction of pancreatitis increased the number of circulating pancreatic cells. Conversely, treatment with the immunosuppressive agent dexamethasone abolished dissemination. These results provide insight into the earliest events of cellular invasion in situ and suggest that inflammation enhances cancer progression in part by facilitating EMT and entry into the circulation.
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Rhim AD, Mirek ET, Aiello NM, Maitra A, Bailey JM, McAllister F, Reichert M, Beatty GL, Rustgi AK, Vonderheide RH, Leach SD, Stanger BZ. EMT and dissemination precede pancreatic tumor formation. Cell 2012; 148:349-61. [PMID: 22265420 DOI: 10.1016/j.cell.2011.11.025] [Citation(s) in RCA: 1556] [Impact Index Per Article: 129.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Revised: 10/24/2011] [Accepted: 11/03/2011] [Indexed: 02/07/2023]
Abstract
Metastasis is the leading cause of cancer-associated death but has been difficult to study because it involves a series of rare, stochastic events. To capture these events, we developed a sensitive method to tag and track pancreatic epithelial cells in a mouse model of pancreatic cancer. Tagged cells invaded and entered the bloodstream unexpectedly early, before frank malignancy could be detected by rigorous histologic analysis; this behavior was widely associated with epithelial-to-mesenchymal transition (EMT). Circulating pancreatic cells maintained a mesenchymal phenotype, exhibited stem cell properties, and seeded the liver. EMT and invasiveness were most abundant at inflammatory foci, and induction of pancreatitis increased the number of circulating pancreatic cells. Conversely, treatment with the immunosuppressive agent dexamethasone abolished dissemination. These results provide insight into the earliest events of cellular invasion in situ and suggest that inflammation enhances cancer progression in part by facilitating EMT and entry into the circulation.
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Affiliation(s)
- Andrew D Rhim
- Gastroenterology Division, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA
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The further study on radioiodinated peptide Arg-Arg-Leu targeted to neovascularization as well as tumor cells in molecular tumor imaging. J Radioanal Nucl Chem 2011. [DOI: 10.1007/s10967-011-1342-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Gaziel-Sovran A, Segura MF, Di Micco R, Collins MK, Hanniford D, de Miera EVS, Rakus JF, Dankert JF, Shang S, Kerbel RS, Bhardwaj N, Shao Y, Darvishian F, Zavadil J, Erlebacher A, Mahal LK, Osman I, Hernando E. miR-30b/30d regulation of GalNAc transferases enhances invasion and immunosuppression during metastasis. Cancer Cell 2011; 20:104-18. [PMID: 21741600 PMCID: PMC3681522 DOI: 10.1016/j.ccr.2011.05.027] [Citation(s) in RCA: 285] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Revised: 02/25/2011] [Accepted: 05/26/2011] [Indexed: 12/18/2022]
Abstract
To metastasize, a tumor cell must acquire abilities such as the capacity to colonize new tissue and evade immune surveillance. Recent evidence suggests that microRNAs can promote the evolution of malignant behaviors by regulating multiple targets. We performed a microRNA analysis of human melanoma, a highly invasive cancer, and found that miR-30b/30d upregulation correlates with stage, metastatic potential, shorter time to recurrence, and reduced overall survival. Ectopic expression of miR-30b/30d promoted the metastatic behavior of melanoma cells by directly targeting the GalNAc transferase GALNT7, resulted in increased synthesis of the immunosuppressive cytokine IL-10, and reduced immune cell activation and recruitment. These data support a key role of miR-30b/30d and GalNAc transferases in metastasis, by simultaneously promoting cellular invasion and immunosuppression.
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Affiliation(s)
- Avital Gaziel-Sovran
- Department of Pathology, NYU Medical Center. New York, New York 10016, USA
- Interdisciplinary Melanoma Cooperative Group (IMCG), NYU Medical Center. New York, New York 10016, USA
| | - Miguel F. Segura
- Department of Pathology, NYU Medical Center. New York, New York 10016, USA
- Interdisciplinary Melanoma Cooperative Group (IMCG), NYU Medical Center. New York, New York 10016, USA
| | - Raffaella Di Micco
- Department of Pathology, NYU Medical Center. New York, New York 10016, USA
- Interdisciplinary Melanoma Cooperative Group (IMCG), NYU Medical Center. New York, New York 10016, USA
| | - Mary K. Collins
- Department of Pathology, NYU Medical Center. New York, New York 10016, USA
| | - Douglas Hanniford
- Department of Pathology, NYU Medical Center. New York, New York 10016, USA
- Interdisciplinary Melanoma Cooperative Group (IMCG), NYU Medical Center. New York, New York 10016, USA
| | - Eleazar Vega-Saenz de Miera
- Interdisciplinary Melanoma Cooperative Group (IMCG), NYU Medical Center. New York, New York 10016, USA
- Department of Dermatology, NYU Medical Center. New York, New York 10016, USA
| | - John F. Rakus
- NYU Center for Health Informatics and Bioinformatics, NYU Medical Center. New York, New York 10016, USA
| | - John F. Dankert
- Department of Pathology, NYU Medical Center. New York, New York 10016, USA
- Interdisciplinary Melanoma Cooperative Group (IMCG), NYU Medical Center. New York, New York 10016, USA
| | - Shulian Shang
- Department of Environmental Medicine, NYU Medical Center. New York, New York 10016, USA
| | - Robert S. Kerbel
- Department of Medical Biophysics, University of Toronto, Toronto, ON M4N 3M5 Canada
| | - Nina Bhardwaj
- Department of Pathology, NYU Medical Center. New York, New York 10016, USA
- Interdisciplinary Melanoma Cooperative Group (IMCG), NYU Medical Center. New York, New York 10016, USA
- Department of Medicine, NYU Medical Center. New York, New York 10016, USA
| | - Yongzhao Shao
- Department of Environmental Medicine, NYU Medical Center. New York, New York 10016, USA
| | - Farbod Darvishian
- Department of Pathology, NYU Medical Center. New York, New York 10016, USA
- Interdisciplinary Melanoma Cooperative Group (IMCG), NYU Medical Center. New York, New York 10016, USA
| | - Jiri Zavadil
- Department of Pathology, NYU Medical Center. New York, New York 10016, USA
- NYU Center for Health Informatics and Bioinformatics, NYU Medical Center. New York, New York 10016, USA
| | - Adrian Erlebacher
- Department of Pathology, NYU Medical Center. New York, New York 10016, USA
| | | | - Iman Osman
- Interdisciplinary Melanoma Cooperative Group (IMCG), NYU Medical Center. New York, New York 10016, USA
- Department of Dermatology, NYU Medical Center. New York, New York 10016, USA
- Department of Medicine, NYU Medical Center. New York, New York 10016, USA
| | - Eva Hernando
- Department of Pathology, NYU Medical Center. New York, New York 10016, USA
- Interdisciplinary Melanoma Cooperative Group (IMCG), NYU Medical Center. New York, New York 10016, USA
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Huang S. On the intrinsic inevitability of cancer: from foetal to fatal attraction. Semin Cancer Biol 2011; 21:183-99. [PMID: 21640825 DOI: 10.1016/j.semcancer.2011.05.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2010] [Revised: 03/02/2011] [Accepted: 05/09/2011] [Indexed: 01/07/2023]
Abstract
The cracks in the paradigm of oncogenic mutations and somatic evolution as driving force of tumorigenesis, lucidly exposed by the dynamic heterogeneity of "cancer stem cells" or the diffuse results of cancer genome sequencing projects, indicate the need for a more encompassing theory of cancer that reaches beyond the current proximate explanations based on individual genetic pathways. One such integrative concept, derived from first principles of the dynamics of gene regulatory networks, is that cancerous cell states are attractor states, just like normal cell types are. Here we extend the concept of cancer attractors to illuminate a more profound property of cancer initiation: its inherent inevitability in the light of metazoan evolution. Using Waddington's Epigenetic Landscape as a conceptual aid, for which we present a mathematical and evolutionary foundation, we propose that cancer is intrinsically linked to ontogenesis and phylogenesis. This explanatory rather than enumerating review uses a formal argumentation structure that is atypical in modern experimental biology but may hopefully offer a new coherent perspective to reconcile many conflicts between new findings and the old thinking in the categories of linear oncogenic pathways.
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Affiliation(s)
- Sui Huang
- Institute for Biocomplexity and Informatics, University of Calgary, Alberta, Canada.
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Park B, Sung B, Yadav VR, Cho SG, Liu M, Aggarwal BB. Acetyl-11-keto-β-boswellic acid suppresses invasion of pancreatic cancer cells through the downregulation of CXCR4 chemokine receptor expression. Int J Cancer 2011; 129:23-33. [PMID: 21448932 DOI: 10.1002/ijc.25966] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2010] [Accepted: 01/12/2011] [Indexed: 12/17/2022]
Abstract
Ninety percent of cancer-mediated deaths are due to metastasis of the tumor; however, the mechanisms controlling metastasis remain poorly understood. Thus, no therapy targeting this process has yet been approved. Chemokines and their receptors are mediators of chronic inflammation and have been linked to the metastasis of numerous cancers. More recently, the Cysteine X Cysteine (CXC) chemokine receptor 4 (CXCR4) has emerged as a key mediator of tumor metastasis; therefore, identification of inhibitors of this receptor has the potential to abrogate metastasis. In this report, we demonstrate that acetyl-11-keto-β-boswellic acid (AKBA), a component of the therapeutic plant Boswellia serrata, can downregulate CXCR4 expression in pancreatic cancer cells. The reduction in CXCR4 induced by this terpenoid was found to be cell-type specific, as its expression was also abrogated in leukemia, myeloma and breast cancer cell lines. Neither proteasome inhibitors nor lysosomal stabilization could prevent the AKBA-induced reduction in CXCR4 expression. This downregulation occurred at the transcriptional level. Suppression of CXCR4 by AKBA was accompanied by the inhibition of pancreatic cancer cell invasion, which is induced by CXCL12, the ligand for CXCR4. In addition, abrogation of the expression of chemokine receptor by AKBA was found in human pancreatic tissues from orthotopic animal model. AKBA also abolished breast tumor cell invasion, and this effect correlated with the disappearance of both the CXCR4 messenger RNA and CXCR4 protein. Overall, our results show that AKBA is a novel inhibitor of CXCR4 expression and, thus, has the potential to suppress the invasion and metastasis of cancer cells.
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Affiliation(s)
- Byoungduck Park
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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Sawada M, Kubo SI, Matsumura K, Takemoto Y, Kobayashi H, Tashiro E, Kitahara T, Watanabe H, Imoto M. Synthesis and anti-migrative evaluation of moverastin derivatives. Bioorg Med Chem Lett 2011; 21:1385-9. [DOI: 10.1016/j.bmcl.2011.01.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Revised: 01/06/2011] [Accepted: 01/07/2011] [Indexed: 11/25/2022]
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Genetic factors in metastatic progression of cutaneous melanoma: the future role of circulating melanoma cells in prognosis and management. Clin Exp Metastasis 2011; 28:327-36. [PMID: 21311956 DOI: 10.1007/s10585-010-9368-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2010] [Accepted: 12/13/2010] [Indexed: 01/01/2023]
Abstract
The greatest potential for improvement of outcome for patients with Cutaneous Malignant Melanoma lies in the prevention of systemic metastasis. Despite extensive investigation, current prognostic indicators either alone or in combination, although related to melanoma progression, are not sufficient to accurately predict the pattern of progression and outcome for any individual patient. Metastasis related death has been recorded in patients initially diagnosed with early stage tumour as well as in patients many years after initial tumour removal. The trouble finding a predictable pattern in the puzzle of melanoma progression may be linked to the fact that most of the material studied for prognosis is either, cutaneous primaries or metastatic deposits, rather than the melanoma cells in the circulatory system which are responsible for disease progression. In this review article we discuss the potential use of circulating tumour cell (CTC) detection and quantification for identifying patients at risk of metastatic deposits. We also discuss current therapies for the treatment of metastatic melanoma and analyse how CTCs may be used to evaluate the effectiveness of current therapies and to pinpoint patients who require further treatment.
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Brain metastases of mouse mammary adenocarcinoma is increased by acute stress. Brain Res 2010; 1366:204-10. [DOI: 10.1016/j.brainres.2010.09.085] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2010] [Revised: 09/21/2010] [Accepted: 09/23/2010] [Indexed: 12/22/2022]
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Tian S, Roepman P, Van't Veer LJ, Bernards R, de Snoo F, Glas AM. Biological functions of the genes in the mammaprint breast cancer profile reflect the hallmarks of cancer. Biomark Insights 2010; 5:129-38. [PMID: 21151591 PMCID: PMC2999994 DOI: 10.4137/bmi.s6184] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Background: MammaPrint was developed as a diagnostic tool to predict risk of breast cancer metastasis using the expression of 70 genes. To better understand the tumor biology assessed by MammaPrint, we interpreted the biological functions of the 70-genes and showed how the genes reflect the six hallmarks of cancer as defined by Hanahan and Weinberg. Results: We used a bottom-up system biology approach to elucidate how the cellular processes reflected by the 70-genes work together to regulate tumor activities and progression. The biological functions of the genes were analyzed using literature research and several bioinformatics tools. Protein-protein interaction network analyses indicated that the 70-genes form highly interconnected networks and that their expression levels are regulated by key tumorigenesis related genes such as TP53, RB1, MYC, JUN and CDKN2A. The biological functions of the genes could be associated with the essential steps necessary for tumor progression and metastasis, and cover the six well-defined hallmarks of cancer, reflecting the acquired malignant characteristics of a cancer cell along with tumor progression and metastasis-related biological activities. Conclusion: Genes in the MammaPrint gene signature comprehensively measure the six hallmarks of cancer-related biology. This finding establishes a link between a molecular signature and the underlying molecular mechanisms of tumor cell progression and metastasis.
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Affiliation(s)
- Sun Tian
- Agendia BV, Science Park 406, 1098 XH Amsterdam, The Netherlands
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Chua AWL, Hay HS, Rajendran P, Shanmugam MK, Li F, Bist P, Koay ESC, Lim LHK, Kumar AP, Sethi G. Butein downregulates chemokine receptor CXCR4 expression and function through suppression of NF-κB activation in breast and pancreatic tumor cells. Biochem Pharmacol 2010; 80:1553-62. [PMID: 20699088 DOI: 10.1016/j.bcp.2010.07.045] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2010] [Revised: 07/21/2010] [Accepted: 07/27/2010] [Indexed: 12/12/2022]
Abstract
The CXC chemokine receptor-4 (CXCR4), a Gi protein-coupled receptor for the ligand CXCL12/stromal cell-derived factor-1α (SDF-1α), is known to be expressed in various tumors. This receptor mediates homing of tumor cells to specific organs that express the ligand CXCL12 for this receptor and plays an important role in tumor growth, invasion, metastasis, and angiogenesis. Thus, a priori, agents that can downregulate CXCR4/CXCL12 signaling cascade have potential against cancer metastasis. In this study, we report the identification of butein (3, 4, 2', 4'-tetrahydroxychalcone) as a novel regulator of CXCR4 expression and function. We found that butein downregulated the expression of CXCR4 in HER2-overexpressing breast cancer cells in a dose- and time-dependent manner. The decrease in CXCR4 expression induced by butein was not cell type-specific as the inhibition also occurred in pancreatic, prostate, multiple myeloma, head and neck, and hepatocellular cancer cell lines. When investigated for the molecular mechanism(s), it was found that the downregulation of CXCR4 was not due to proteolytic degradation but rather to transcriptional regulation as indicated by downregulation of mRNA expression, inhibition of NF-κB activation evident by both DNA binding, and reporter assays, and suppression of chromatin immunoprecipitation activity. Suppression of CXCR4 expression by butein correlated with the inhibition of CXCL12-induced migration and invasion of both breast and pancreatic cancer cells. Overall, our results demonstrate for the first time that butein is a novel inhibitor of CXCR4 expression and thus has a potential in suppressing metastasis of cancer.
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Affiliation(s)
- Angeline Wei Ling Chua
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
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Greene SB, Gunaratne PH, Hammond SM, Rosen JM. A putative role for microRNA-205 in mammary epithelial cell progenitors. J Cell Sci 2010; 123:606-18. [PMID: 20103531 PMCID: PMC2818197 DOI: 10.1242/jcs.056812] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/21/2009] [Indexed: 12/19/2022] Open
Abstract
In an effort to understand the potential role of microRNAs (miRNAs) in mammary-gland stem or progenitor cells, miRNA microarrays were performed on subpopulations of the mouse mammary epithelial cell (MEC) line COMMA-DbetaGeo. This cell line contains a heterogeneous subpopulation of progenitors characterized by the expression of stem cell antigen 1 (Sca-1; encoded by Ly6a). Microarray analysis indicated that the Sca-1 subpopulations have distinct miRNA expression profiles. Functional studies were performed on miR-205, which was highly expressed in the Sca-1-positive (Sca-1(+)) cells. When miR-205 was overexpressed in vitro, the COMMA-DbetaGeo cells underwent several significant morphological and molecular changes. miR-205 overexpression led to an expansion of the progenitor-cell population, decreased cell size and increased cellular proliferation. In addition, the colony-forming potential of the two Sca-1 subpopulations was increased. Target prediction for miR-205 indicated that it might regulate the expression of the tumor-suppressor protein PTEN. Overexpression studies using reporter constructs confirmed that PTEN expression is regulated by miR-205. In addition to PTEN, several other putative and previously validated miR-205 targets were identified by microarray analysis, including the previously reported miR-205 targets ZEB1 and ZEB2. Additionally, in normal mouse MECs, high expression of miR-205 was observed in stem-cell-enriched cell populations isolated by FACS using established cell-surface markers.
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Affiliation(s)
- Stephanie B. Greene
- Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Preethi H. Gunaratne
- Department of Pathology, Baylor College of Medicine, Houston, TX 77030, USA
- Biology and Biochemistry, University of Houston, Houston, TX 77004, USA
| | - Scott M. Hammond
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Jeffrey M. Rosen
- Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
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45
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Trougakos IP, Chondrogianni N, Amarantos I, Blake J, Schwager C, Wirkner U, Ansorge W, Gonos ES. Genome-wide transcriptome profile of the human osteosarcoma Sa OS and U-2 OS cell lines. ACTA ACUST UNITED AC 2010; 196:109-18. [PMID: 20082845 DOI: 10.1016/j.cancergencyto.2009.09.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2009] [Revised: 09/09/2009] [Accepted: 09/20/2009] [Indexed: 12/27/2022]
Abstract
With the use of genome-wide cDNA microarrays, we investigated the transcriptome profile of the human osteosarcoma Sa OS and U-2 OS cell lines. In all, 1,098 chip entries were differentially regulated in the two cell lines; of these, 796 entries corresponded to characterized mRNAs. The identified genes are mostly expressed in epithelial tissues and localize on chromosomes 1, 10, and 20. Furthermore, signaling cascades for cell cycle, glycolysis, and gluconeogenesis, the p53 pathway, cell communication, and focal adhesion were found to be differently regulated in the two cell lines. The transcriptome profiles reported here provide novel information about the considerable molecular differences between these two widely used human osteosarcoma cell lines.
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Affiliation(s)
- Ioannis P Trougakos
- Department of Cell Biology & Biophysics, Faculty of Biology, University of Athens, Panepistimiopolis Zografou, Athens 15784, Greece.
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46
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Jarabek AM, Pottenger LH, Andrews LS, Casciano D, Embry MR, Kim JH, Preston RJ, Reddy MV, Schoeny R, Shuker D, Skare J, Swenberg J, Williams GM, Zeiger E. Creating context for the use of DNA adduct data in cancer risk assessment: I. Data organization. Crit Rev Toxicol 2010; 39:659-78. [PMID: 19743944 DOI: 10.1080/10408440903164155] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The assessment of human cancer risk from chemical exposure requires the integration of diverse types of data. Such data involve effects at the cell and tissue levels. This report focuses on the specific utility of one type of data, namely DNA adducts. Emphasis is placed on the appreciation that such DNA adduct data cannot be used in isolation in the risk assessment process but must be used in an integrated fashion with other information. As emerging technologies provide even more sensitive quantitative measurements of DNA adducts, integration that establishes links between DNA adducts and accepted outcome measures becomes critical for risk assessment. The present report proposes an organizational approach for the assessment of DNA adduct data (e.g., type of adduct, frequency, persistence, type of repair process) in concert with other relevant data, such as dosimetry, toxicity, mutagenicity, genotoxicity, and tumor incidence, to inform characterization of the mode of action. DNA adducts are considered biomarkers of exposure, whereas gene mutations and chromosomal alterations are often biomarkers of early biological effects and also can be bioindicators of the carcinogenic process.
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Affiliation(s)
- Annie M Jarabek
- National Health and Environmental Effects Research Laboratory, on detail from National Center for Environmental Assessment, US Environmental Protection Agency, Research Triangle Park, North Carolina, USA
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47
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Axl is an essential epithelial-to-mesenchymal transition-induced regulator of breast cancer metastasis and patient survival. Proc Natl Acad Sci U S A 2009; 107:1124-9. [PMID: 20080645 DOI: 10.1073/pnas.0909333107] [Citation(s) in RCA: 444] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Metastasis underlies the majority of cancer-related deaths. Thus, furthering our understanding of the molecular mechanisms that enable tumor cell dissemination is a vital health issue. Epithelial-to-mesenchymal transitions (EMTs) endow carcinoma cells with enhanced migratory and survival attributes that facilitate malignant progression. Characterization of EMT effectors is likely to yield new insights into metastasis and novel avenues for treatment. We show that the presence of the receptor tyrosine kinase Axl in primary breast cancers independently predicts strongly reduced overall patient survival, and that matched patient metastatic lesions show enhanced Axl expression. We demonstrate that Axl is strongly induced by EMT in immortalized mammary epithelial cells that establishes an autocrine signaling loop with its ligand, Gas6. Epiallelic RNA interference analysis in metastatic breast cancer cells delineated a distinct threshold of Axl expression for mesenchymal-like in vitro cell invasiveness and formation of tumors in foreign and tissue-engineered microenvironments in vivo. Importantly, in two different optical imaging-based experimental breast cancer models, Axl knockdown completely prevented the spread of highly metastatic breast carcinoma cells from the mammary gland to lymph nodes and several major organs and increased overall survival. These findings suggest that Axl represents a downstream effector of the tumor cell EMT that is required for breast cancer metastasis. Thus, the detection and targeted treatment of Axl-expressing tumors represents an important new therapeutic strategy for breast cancer.
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48
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Kalluri R, Weinberg RA. The basics of epithelial-mesenchymal transition. J Clin Invest 2009. [PMID: 19487818 DOI: 10.1172/jci39104.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The origins of the mesenchymal cells participating in tissue repair and pathological processes, notably tissue fibrosis, tumor invasiveness, and metastasis, are poorly understood. However, emerging evidence suggests that epithelial-mesenchymal transitions (EMTs) represent one important source of these cells. As we discuss here, processes similar to the EMTs associated with embryo implantation, embryogenesis, and organ development are appropriated and subverted by chronically inflamed tissues and neoplasias. The identification of the signaling pathways that lead to activation of EMT programs during these disease processes is providing new insights into the plasticity of cellular phenotypes and possible therapeutic interventions.
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Affiliation(s)
- Raghu Kalluri
- Division of Matrix Biology, Beth Israel Deaconess Medical Center, and Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02215, USA.
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49
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Abstract
The origins of the mesenchymal cells participating in tissue repair and pathological processes, notably tissue fibrosis, tumor invasiveness, and metastasis, are poorly understood. However, emerging evidence suggests that epithelial-mesenchymal transitions (EMTs) represent one important source of these cells. As we discuss here, processes similar to the EMTs associated with embryo implantation, embryogenesis, and organ development are appropriated and subverted by chronically inflamed tissues and neoplasias. The identification of the signaling pathways that lead to activation of EMT programs during these disease processes is providing new insights into the plasticity of cellular phenotypes and possible therapeutic interventions.
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Affiliation(s)
- Raghu Kalluri
- Division of Matrix Biology, Beth Israel Deaconess Medical Center, and Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02215, USA.
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50
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Abstract
The origins of the mesenchymal cells participating in tissue repair and pathological processes, notably tissue fibrosis, tumor invasiveness, and metastasis, are poorly understood. However, emerging evidence suggests that epithelial-mesenchymal transitions (EMTs) represent one important source of these cells. As we discuss here, processes similar to the EMTs associated with embryo implantation, embryogenesis, and organ development are appropriated and subverted by chronically inflamed tissues and neoplasias. The identification of the signaling pathways that lead to activation of EMT programs during these disease processes is providing new insights into the plasticity of cellular phenotypes and possible therapeutic interventions.
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Affiliation(s)
- Raghu Kalluri
- Division of Matrix Biology, Beth Israel Deaconess Medical Center, and Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02215, USA.
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