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Yang X, Zhang Z, Bi X. A nomogram for predicting colorectal cancer liver metastasis using circulating tumor cells from the first drainage vein. EUROPEAN JOURNAL OF SURGICAL ONCOLOGY 2024; 50:108579. [PMID: 39121633 DOI: 10.1016/j.ejso.2024.108579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 03/05/2024] [Accepted: 08/01/2024] [Indexed: 08/12/2024]
Abstract
PURPOSE To use circulating tumor cells (CTC) from the first drainage vein (FDV) of the primary lesion and other clinically relevant parameters to construct a nomogram for predicting liver metastasis in colorectal cancer (CRC) patients, and to provide a theoretical basis for clinical diagnosis and treatment. METHODS Information from 343 CRC patients was collected and a database was established. Multivariate logistic analysis was used to identify independent factors for colorectal cancer liver metastasis(mCRC) and nomograms were constructed. Receiver operating characteristic curves(ROC), calibration plots, and decision curve analysis (DCA) were used to assess discrimination, agreement with actual risk, and the clinical utility of the prediction model, respectively. RESULT CTC levels in FDV were significantly higher in patients with liver metastasis than in those without liver metastasis. Logistic multivariate analysis showed that vascular invasion, T stage, carcinoembryonic antigen (CEA), CA19-9, and CTC could be used as predictors to construct nomograms. The nomograms showed good discriminatory ability in predicting mCRC, with area under the curve (AUC) values of 0.871 [95 % CI: 0.817-0.924) and 0.891 (95 % CI: 0.817-0.964) for the training and validation sets, respectively.] The calibration curves of both the training and validation sets showed that the model was effective in predicting the probability of mCRC. DCA was used to evaluate this predictive model and showed good net clinical benefit. CONCLUSION We developed and validated a nomogram model based on the combination of CTC in the FDV with other clinical parameters to better predict the occurrence of mCRC.
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Affiliation(s)
- Xiaoyu Yang
- Liaoning Cancer Hospital & Institute, Cancer Hospital of Dalian University of Technology, Cancer Hospital of China Medical University, PR China
| | - Zhongguo Zhang
- Liaoning Cancer Hospital & Institute, Cancer Hospital of Dalian University of Technology, Cancer Hospital of China Medical University, PR China.
| | - Xue Bi
- Liaoning Cancer Hospital & Institute, Cancer Hospital of Dalian University of Technology, Cancer Hospital of China Medical University, PR China.
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2
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Luo L, Xu N, Fan W, Wu Y, Chen P, Li Z, He Z, Liu H, Lin Y, Zheng G. The TGFβ2-Snail1-miRNA TGFβ2 Circuitry is Critical for the Development of Aggressive Functions in Breast Cancer. Clin Transl Med 2024; 14:e1558. [PMID: 38299307 PMCID: PMC10831563 DOI: 10.1002/ctm2.1558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 01/04/2024] [Accepted: 01/09/2024] [Indexed: 02/02/2024] Open
Abstract
There have been contradictory reports on the biological role of transforming growth factor-βs (TGFβs) in breast cancer (BC), especially with regard to their ability to promote epithelial-mesenchymal transition (EMT). Here, we show that TGFβ2 is preferentially expressed in mesenchymal-like BCs and maintains the EMT phenotype, correlating with cancer stem cell-like characteristics, growth, metastasis and chemo-resistance and predicting worse clinical outcomes. However, this is only true in ERα- BC. In ERα+ luminal-type BC, estrogen receptor interacts with p-Smads to block TGFβ signalling. Furthermore, we also identify a microRNAs (miRNAs) signature (miRNAsTGFβ2 ) that is weakened in TGFβ2-overexpressing BC cells. We discover that TGFβ2-Snail1 recruits enhancer of zeste homolog-2 to convert miRNAsTGFβ2 promoters from an active to repressive chromatin configuration and then repress miRNAsTGFβ2 transcription, forming a negative feedback loop. On the other hand, miRNAsTGFβ2 overexpression reverses the mesenchymal-like traits in agreement with the inhibition of TGFβ2-Snail1 signalling in BC cells. These findings clarify the roles of TGFβ2 in BC and suggest novel therapeutic strategies based on the TGFβ2-Snail1-miRNAsTGFβ2 loop for a subset type of human BCs.
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Affiliation(s)
- Liyun Luo
- Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityState Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Ning Xu
- Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityState Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Weina Fan
- Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityState Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Yixuan Wu
- Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityState Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Pingping Chen
- Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityState Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Zhihui Li
- Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityState Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Zhimin He
- Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityState Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Hao Liu
- Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityState Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Ying Lin
- Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityState Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Guopei Zheng
- Affiliated Cancer Hospital and Institute of Guangzhou Medical UniversityState Key Laboratory of Respiratory DiseaseGuangzhouChina
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3
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Lee S, Kang E, Lee U, Cho S. Role of pelitinib in the regulation of migration and invasion of hepatocellular carcinoma cells via inhibition of Twist1. BMC Cancer 2023; 23:703. [PMID: 37495969 PMCID: PMC10373356 DOI: 10.1186/s12885-023-11217-2] [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: 01/19/2023] [Accepted: 07/24/2023] [Indexed: 07/28/2023] Open
Abstract
BACKGROUND Overexpression of Twist1, one of the epithelial-mesenchymal transition-transcription factors (EMT-TFs), is associated with hepatocellular carcinoma (HCC) metastasis. Pelitinib is known to be an irreversible epidermal growth factor receptor tyrosine kinase inhibitor that is used in clinical trials for colorectal and lung cancers, but the role of pelitinib in cancer metastasis has not been studied. This study aimed to investigate the anti-migration and anti-invasion activities of pelitinib in HCC cell lines. METHODS Using three HCC cell lines (Huh7, Hep3B, and SNU449 cells), the effects of pelitinib on cell cytotoxicity, invasion, and migration were determined by cell viability, wound healing, transwell invasion, and spheroid invasion assays. The activities of MMP-2 and -9 were examined through gelatin zymography. Through immunoblotting analyses, the expression levels of EMT-TFs (Snail1, Twist1, and ZEB1) and EMT-related signaling pathways such as mitogen-activated protein kinases (MAPKs) and Akt signaling pathways were measured. The activity and expression levels of target genes were analyzed by reporter assay, RT-PCR, quantitative RT-PCR, and immunoblotting analysis. Statistical analysis was performed using one-way ANOVA with Dunnett's Multiple comparison tests in Prism 3.0 to assess differences between experimental conditions. RESULTS In this study, pelitinib treatment significantly inhibited wound closure in various HCC cell lines, including Huh7, Hep3B, and SNU449. Additionally, pelitinib was found to inhibit multicellular cancer spheroid invasion and metalloprotease activities in Huh7 cells. Further investigation revealed that pelitinib treatment inhibited the migration and invasion of Huh7 cells by inducing Twist1 degradation through the inhibition of MAPK and Akt signaling pathways. We also confirmed that the inhibition of cell motility by Twist1 siRNA was similar to that observed in pelitinib-treated group. Furthermore, pelitinib treatment regulated the expression of target genes associated with EMT, as demonstrated by the upregulation of E-cadherin and downregulation of N-cadherin. CONCLUSION Based on our novel finding of pelitinib from the perspective of EMT, pelitinib has the ability to inhibit EMT activity of HCC cells via inhibition of Twist1, and this may be the potential mechanism of pelitinib on the suppression of migration and invasion of HCC cells. Therefore, pelitinib could be developed as a potential anti-cancer drug for HCC.
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Affiliation(s)
- Sewoong Lee
- Laboratory of Molecular and Pharmacological Cell Biology, College of Pharmacy, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Eunjeong Kang
- Laboratory of Molecular and Pharmacological Cell Biology, College of Pharmacy, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Unju Lee
- Laboratory of Molecular and Pharmacological Cell Biology, College of Pharmacy, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Sayeon Cho
- Laboratory of Molecular and Pharmacological Cell Biology, College of Pharmacy, Chung-Ang University, Seoul, 06974, Republic of Korea.
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Metabolomic and Mitochondrial Fingerprinting of the Epithelial-to-Mesenchymal Transition (EMT) in Non-Tumorigenic and Tumorigenic Human Breast Cells. Cancers (Basel) 2022; 14:cancers14246214. [PMID: 36551699 PMCID: PMC9776482 DOI: 10.3390/cancers14246214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/07/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022] Open
Abstract
Epithelial-to-mesenchymal transition (EMT) is key to tumor aggressiveness, therapy resistance, and immune escape in breast cancer. Because metabolic traits might be involved along the EMT continuum, we investigated whether human breast epithelial cells engineered to stably acquire a mesenchymal phenotype in non-tumorigenic and H-RasV12-driven tumorigenic backgrounds possess unique metabolic fingerprints. We profiled mitochondrial-cytosolic bioenergetic and one-carbon (1C) metabolites by metabolomic analysis, and then questioned the utilization of different mitochondrial substrates by EMT mitochondria and their sensitivity to mitochondria-centered inhibitors. "Upper" and "lower" glycolysis were the preferred glucose fluxes activated by EMT in non-tumorigenic and tumorigenic backgrounds, respectively. EMT in non-tumorigenic and tumorigenic backgrounds could be distinguished by the differential contribution of the homocysteine-methionine 1C cycle to the transsulfuration pathway. Both non-tumorigenic and tumorigenic EMT-activated cells showed elevated mitochondrial utilization of glycolysis end-products such as lactic acid, β-oxidation substrates including palmitoyl-carnitine, and tricarboxylic acid pathway substrates such as succinic acid. Notably, mitochondria in tumorigenic EMT cells distinctively exhibited a significant alteration in the electron flow intensity from succinate to mitochondrial complex III as they were highly refractory to the inhibitory effects of antimycin A and myxothiazol. Our results show that the bioenergetic/1C metabolic signature, the utilization rates of preferred mitochondrial substrates, and sensitivity to mitochondrial drugs significantly differs upon execution of EMT in non-tumorigenic and tumorigenic backgrounds, which could help to resolve the relationship between EMT, malignancy, and therapeutic resistance in breast cancer.
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5
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Moallem G, Pore AA, Gangadhar A, Sari-Sarraf H, Vanapalli SA. Detection of live breast cancer cells in bright-field microscopy images containing white blood cells by image analysis and deep learning. JOURNAL OF BIOMEDICAL OPTICS 2022; 27:JBO-210268RR. [PMID: 35831930 PMCID: PMC9278981 DOI: 10.1117/1.jbo.27.7.076003] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 06/09/2022] [Indexed: 05/15/2023]
Abstract
SIGNIFICANCE Circulating tumor cells (CTCs) are important biomarkers for cancer management. Isolated CTCs from blood are stained to detect and enumerate CTCs. However, the staining process is laborious and moreover makes CTCs unsuitable for drug testing and molecular characterization. AIM The goal is to develop and test deep learning (DL) approaches to detect unstained breast cancer cells in bright-field microscopy images that contain white blood cells (WBCs). APPROACH We tested two convolutional neural network (CNN) approaches. The first approach allows investigation of the prominent features extracted by CNN to discriminate in vitro cancer cells from WBCs. The second approach is based on faster region-based convolutional neural network (Faster R-CNN). RESULTS Both approaches detected cancer cells with higher than 95% sensitivity and 99% specificity with the Faster R-CNN being more efficient and suitable for deployment presenting an improvement of 4% in sensitivity. The distinctive feature that CNN uses for discrimination is cell size, however, in the absence of size difference, the CNN was found to be capable of learning other features. The Faster R-CNN was found to be robust with respect to intensity and contrast image transformations. CONCLUSIONS CNN-based DL approaches could be potentially applied to detect patient-derived CTCs from images of blood samples.
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Affiliation(s)
- Golnaz Moallem
- Texas Tech University, Department of Electrical and Computer Engineering, Lubbock, Texas, United States
| | - Adity A. Pore
- Texas Tech University, Department of Chemical Engineering, Lubbock, Texas, United States
| | - Anirudh Gangadhar
- Texas Tech University, Department of Chemical Engineering, Lubbock, Texas, United States
| | - Hamed Sari-Sarraf
- Texas Tech University, Department of Electrical and Computer Engineering, Lubbock, Texas, United States
- Address all correspondence to Hamed Sari-Sarraf, ; Siva A. Vanapalli,
| | - Siva A. Vanapalli
- Texas Tech University, Department of Chemical Engineering, Lubbock, Texas, United States
- Address all correspondence to Hamed Sari-Sarraf, ; Siva A. Vanapalli,
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6
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Xu K, Jiao X, Wang P, Chen C, Chen C. Isolation of circulating tumor cells based on magnetophoresis. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1016/j.cjac.2022.100058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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7
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Interplay of Immunometabolism and Epithelial-Mesenchymal Transition in the Tumor Microenvironment. Int J Mol Sci 2021; 22:ijms22189878. [PMID: 34576042 PMCID: PMC8466075 DOI: 10.3390/ijms22189878] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/10/2021] [Accepted: 09/11/2021] [Indexed: 02/07/2023] Open
Abstract
Epithelial–mesenchymal transition (EMT) and metabolic reprogramming in cancer cells are the key hallmarks of tumor metastasis. Since the relationship between the two has been well studied, researchers have gained increasing interest in the interplay of cancer cell EMT and immune metabolic changes. Whether the mutual influences between them could provide novel explanations for immune surveillance during metastasis is worth understanding. Here, we review the role of immunometabolism in the regulatory loop between tumor-infiltrating immune cells and EMT. We also discuss the challenges and perspectives of targeting immunometabolism in cancer treatment.
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8
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Tian Y, Wu J, Zeng L, Zhou L, Hu Y, Pan Q, Liu W, Yan Y, Wu Z, Wang Z, Zeng Z, Tang P, Jiang J, Wang M. Huaier polysaccharides suppress triple-negative breast cancer metastasis and epithelial-mesenchymal transition by inducing autophagic degradation of Snail. Cell Biosci 2021; 11:170. [PMID: 34481526 PMCID: PMC8417980 DOI: 10.1186/s13578-021-00682-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 08/23/2021] [Indexed: 02/08/2023] Open
Abstract
Background Triple-negative breast cancer (TNBC) is the most aggressive subtype of breast cancer, and the targeted therapies are lacking for this type of cancer. We previously demonstrated that Huaier effectively improve 5-year OS and DFS in stage III TNBC patients, and the polysaccharides of Huaier (PS-T) have been identified as the major components of Huaier. However, the mechanisms of anti-tumor action of PS-T is unclear. This study aimed to investigate the effect of PS-T on TNBC cell invasion and migration. Results This study showed that PS-T inhibited cell invasion and migration both in vitro and in vivo by inducing autophagy to suppress epithelial-mesenchymal transition (EMT). Autophagy inhibitor LY294002 or knockdown of ATG5 suppressed the inhibitory effects of PS-T. In addition, as a key transcription factor controlling EMT initiation, Snail was found to be degraded by PS-T induced autophagy. In addition, overexpression of Snail reversed the inhibitory effects of PS-T. Furthermore, it was confirmed that the expression of Snail was inversely correlated with LC3 and associated with poor prognosis using immunohistochemistry and TCGA database analysis, respectively. Conclusions This study demonstrated that PS-T could inhibit EMT in breast cancer cells by inducing autophagy to degrade Snail protein, thus improving the prognosis of TNBC, offering potential treatment alternatives for TNBC patients. Supplementary Information The online version contains supplementary material available at 10.1186/s13578-021-00682-6.
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Affiliation(s)
- Yuan Tian
- Breast Disease Center, Southwest Hospital, Army Medical University, 30# Gaotanyan street, Chongqing, 400038, China.,Department of General Surgery, Linyi People's Hospital, Linyi, 276000, China
| | - Jin Wu
- Breast Disease Center, Southwest Hospital, Army Medical University, 30# Gaotanyan street, Chongqing, 400038, China
| | - Lingjuan Zeng
- Breast Disease Center, Southwest Hospital, Army Medical University, 30# Gaotanyan street, Chongqing, 400038, China
| | - Linxi Zhou
- Breast Disease Center, Southwest Hospital, Army Medical University, 30# Gaotanyan street, Chongqing, 400038, China
| | - Ying Hu
- Breast Disease Center, Southwest Hospital, Army Medical University, 30# Gaotanyan street, Chongqing, 400038, China
| | - Qinwen Pan
- Breast Disease Center, Southwest Hospital, Army Medical University, 30# Gaotanyan street, Chongqing, 400038, China
| | - Wei Liu
- Breast Disease Center, Southwest Hospital, Army Medical University, 30# Gaotanyan street, Chongqing, 400038, China
| | - Yuzhao Yan
- Breast Disease Center, Southwest Hospital, Army Medical University, 30# Gaotanyan street, Chongqing, 400038, China
| | - Ziwei Wu
- Breast Disease Center, Southwest Hospital, Army Medical University, 30# Gaotanyan street, Chongqing, 400038, China
| | - Zhaoyu Wang
- Breast Disease Center, Southwest Hospital, Army Medical University, 30# Gaotanyan street, Chongqing, 400038, China
| | - Zhen Zeng
- Breast Disease Center, Southwest Hospital, Army Medical University, 30# Gaotanyan street, Chongqing, 400038, China
| | - Peng Tang
- Breast Disease Center, Southwest Hospital, Army Medical University, 30# Gaotanyan street, Chongqing, 400038, China.
| | - Jun Jiang
- Breast Disease Center, Southwest Hospital, Army Medical University, 30# Gaotanyan street, Chongqing, 400038, China.
| | - Minghao Wang
- Breast Disease Center, Southwest Hospital, Army Medical University, 30# Gaotanyan street, Chongqing, 400038, China.
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9
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Zhuang QS, Sun XB, Chong QY, Banerjee A, Zhang M, Wu ZS, Zhu T, Pandey V, Lobie PE. ARTEMIN Promotes Oncogenicity and Resistance to 5-Fluorouracil in Colorectal Carcinoma by p44/42 MAPK Dependent Expression of CDH2. Front Oncol 2021; 11:712348. [PMID: 34422665 PMCID: PMC8377398 DOI: 10.3389/fonc.2021.712348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/07/2021] [Indexed: 12/12/2022] Open
Abstract
ARTEMIN (ARTN), one of the glial-cell derived neurotrophic factor family of ligands, has been reported to be associated with a number of human malignancies. In this study, the enhanced expression of ARTN in colorectal carcinoma (CRC) was observed; the expression of ARTN positively correlated with lymph node metastases and advanced tumor stages and predicted poor prognosis. Forced expression of ARTN in CRC cells enhanced oncogenic behavior, mesenchymal phenotype, stem cell-like properties and tumor growth and metastasis in a xenograft model. These functions were conversely inhibited by depletion of endogenous ARTN. Forced expression of ARTN reduced the sensitivity of CRC cells to 5-FU treatment; and 5-FU resistant CRC cells harbored enhanced expression of ARTN. The oncogenic functions of ARTN were demonstrated to be mediated by p44/42 MAP kinase dependent expression of CDH2 (CADHERIN 2, also known as N-CADHERIN). Inhibition of p44/42 MAP kinase activity or siRNA mediated depletion of endogenous CDH2 reduced the enhanced oncogenicity and chemoresistance consequent to forced expression of ARTN induced cell functions; and forced expression of CDH2 rescued the reduced mesenchymal properties and resistance to 5-FU after ARTN depletion. In conclusion, ARTN may be of prognostic and theranostic utility in CRC.
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Affiliation(s)
- Qiu-Shi Zhuang
- Cancer Science Institute of Singapore and Department of Pharmacology, National University of Singapore, Singapore, Singapore.,Tsinghua Berkeley Shenzhen Institute, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China.,Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
| | - Xin-Bao Sun
- Department of Oncology of the First Affiliated Hospital, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Hefei National Laboratory for Physical Sciences at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Qing-Yun Chong
- Cancer Science Institute of Singapore and Department of Pharmacology, National University of Singapore, Singapore, Singapore
| | - Arindam Banerjee
- Cancer Science Institute of Singapore and Department of Pharmacology, National University of Singapore, Singapore, Singapore.,Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, India
| | - Min Zhang
- Department of Oncology of the First Affiliated Hospital, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Hefei National Laboratory for Physical Sciences at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Zheng-Sheng Wu
- Department of Pathology, Anhui Medical University, Hefei, China
| | - Tao Zhu
- Department of Oncology of the First Affiliated Hospital, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Hefei National Laboratory for Physical Sciences at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Vijay Pandey
- Tsinghua Berkeley Shenzhen Institute, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China.,Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China
| | - Peter E Lobie
- Cancer Science Institute of Singapore and Department of Pharmacology, National University of Singapore, Singapore, Singapore.,Tsinghua Berkeley Shenzhen Institute, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China.,Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China.,Shenzhen Bay Laboratory, Shenzhen, China
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10
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Avşar Abdik E. Differentiated pre-adipocytes promote proliferation, migration and epithelial-mesenchymal transition in breast cancer cells of different p53 status. Mol Biol Rep 2021; 48:5187-5198. [PMID: 34213707 DOI: 10.1007/s11033-021-06521-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 06/25/2021] [Indexed: 12/11/2022]
Abstract
Breast cancer progression and metastasis are associated with stromal cells in the tumor microenvironment. Adipocytes are the most abundant cells surrounding breast stromal tissue, promote tumor progression through the induction of Epithelial-to-Mesenchymal Transition (EMT) which is negatively regulated by tumor suppressor protein p53. In this study aimed to investigate the role of p53 in the progression of breast cancer after mature adipocyte-conditioned medium (CM) application. The proliferative effect of CM obtained from differentiated pre-adipocytes were assessed by MTS assay. 20% CM increased cell proliferation in breast cancer cells, T-47D (mutant p53) and MCF-7 (wild-type p53). The migration and invasion capacity were evaluated by scratch and transwell assays, respectively. CM significantly enhanced migration and invasion capacity in T-47D compared to MCF-7. Gene and protein expressions were detected by qRT-PCR and Western Blot analysis, respectively. CM markedly increased expression levels of Cyclin D1, PI3K, MMP9, Snail and Twist in T-47D compared to MCF-7. However, CM did not change E-Cadherin level in T-47D while downregulated in MCF-7 cells. Also, the protein levels of NFκB p65, p-Akt, Snail, and Vimentin were upregulated in both cells. Overall, the findings highlight how the p53 status affects mature adipocyte-mediated proliferation, migration, and aggressive behavior of breast cancer cell lines. Targeting the tumor microenvironment may represent a promising approach for preventing breast cancer progression and metastasis.
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Affiliation(s)
- Ezgi Avşar Abdik
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, 26 Ağustos Campus, Kayisdagi, Istanbul, Turkey.
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11
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Nafie E, Lolarga J, Lam B, Guo J, Abdollahzadeh E, Rodriguez S, Glackin C, Liu J. Harmine inhibits breast cancer cell migration and invasion by inducing the degradation of Twist1. PLoS One 2021; 16:e0247652. [PMID: 33626096 PMCID: PMC7904211 DOI: 10.1371/journal.pone.0247652] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 02/10/2021] [Indexed: 12/27/2022] Open
Abstract
Breast cancer is the leading cause of cancer-related deaths in the United States. The majority of deaths (90%) in breast cancer patients is caused by invasion and metastasis-two features related to the epithelial-to-mesenchymal transition (EMT). Twist1 is a key transcription factor that promotes the EMT, which leads to cell migration, invasion, cancer metastasis, and therapeutic resistance. Harmine is a beta-carboline alkaloid found in a variety of plants and was recently shown to be able to induce degradation of Twist Family BHLH Transcription Factor 1 (Twist1) in non-small cell lung cancer cells (NSCLC). In this study, we show that harmine can inhibit migration and invasion of both human and mouse breast cancer cells in a dose-dependent manner. Further study shows that this inhibition is most likely achieved by inducing a proteasome-dependent Twist1 degradation. At the concentrations tested, harmine did not affect the viability of cells significantly, suggesting that its inhibition of cancer cell migration and invasion is largely independent of its cytotoxicity, but due to its ability to affect regulators of EMT such as Twist1. This result may facilitate the development of strategies that target Twist1 to treat metastatic breast cancer, as Twist1 is expressed at a high level in metastatic breast cancer cells but not in normal cells.
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Affiliation(s)
- Ebtesam Nafie
- Beckman Research Institute, City of Hope, Duarte, CA, United States of America
- Zoology Department, Faculty of Sciences, Benha University, Benha, Egypt
| | - Jade Lolarga
- Department of Biological Sciences, California State Polytechnic University, Pomona, CA, United States of America
| | - Brandon Lam
- Department of Biological Sciences, California State Polytechnic University, Pomona, CA, United States of America
| | - Jonathan Guo
- Department of Biological Sciences, California State Polytechnic University, Pomona, CA, United States of America
| | - Elnaz Abdollahzadeh
- Department of Biological Sciences, California State Polytechnic University, Pomona, CA, United States of America
| | - Sandy Rodriguez
- Department of Biological Sciences, California State University, Long Beach, CA, United States of America
| | - Carlotta Glackin
- Beckman Research Institute, City of Hope, Duarte, CA, United States of America
| | - Junjun Liu
- Department of Biological Sciences, California State Polytechnic University, Pomona, CA, United States of America
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12
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Yu J, Xia X, Dong Y, Gong Z, Li G, Chen GG, Lai PBS. CYP1A2 suppresses hepatocellular carcinoma through antagonizing HGF/MET signaling. Am J Cancer Res 2021; 11:2123-2136. [PMID: 33500715 PMCID: PMC7797680 DOI: 10.7150/thno.49368] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 11/27/2020] [Indexed: 02/06/2023] Open
Abstract
Rationale: Hyperactivation of HGF/MET signaling pathway is a critical driver in liver tumorigenesis. Cytochrome P450 1A2 (CYP1A2) was significantly down-regulated in hepatocellular carcinoma (HCC). However, little is explored about its tumor suppressive role in HCC. In this study, we examined the functional mechanisms and clinical implication of CYP1A2 in HCC. Methods: The clinical impact of CYP1A2 was evaluated in HCC patients in Hong Kong cohort. The biological functions of CYP1A2 were investigated in vitro and in vivo. A series of biochemical experiments including Western blot assay, immunohistochemistry, quantitative reverse transcription-polymerase chain reaction, and Co-immunoprecipitation assay were conducted. Results: CYP1A2 expression was prominently silenced in HCC tumor tissues and the high expression of CYP1A2 was significantly correlated with lower AFP level, less vascular invasion, and better tumor-free survival in local cohort of HCC patients. The overexpression of CYP1A2 inhibited HCC cell viability and clonogenicity, reduced cell migration and invasion abilities in vitro, and suppressed tumorigenicity in vivo, whereas CYP1A2 knockdown exhibited the opposite effects. CYP1A2 significantly hindered HGF/MET signaling and Matrix metalloproteinases (MMPs) expression in HCC cells. Mechanically, CYP1A2 decreased HGF level and diminished HIF-1α expression, both of which are recognized as key regulators of MET activation. As the transcriptional activator of MET, HIF-1α was identified as a binding partner of CYP1A2. Direct binding of CYP1A2 with HIF-1α induced ubiquitin-mediated degradation of HIF-1α, inhibiting HIF-1α-mediated transcriptions. Conclusions: In conclusion, our results have identified CYP1A2 as a novel antagonist of HGF/MET signaling, and CYP1A2 may serve as an independent new biomarker for the prognosis of HCC patients.
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13
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Salemi Z, Azizi R, Fallahian F, Aghaei M. Integrin α2β1 inhibition attenuates prostate cancer cell proliferation by cell cycle arrest, promoting apoptosis and reducing epithelial-mesenchymal transition. J Cell Physiol 2020; 236:4954-4965. [PMID: 33305380 DOI: 10.1002/jcp.30202] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 10/25/2020] [Accepted: 11/25/2020] [Indexed: 12/14/2022]
Abstract
Integrin α2β1 plays an important role in cellular migration and metastasis processes associated with prostate cancer. The aim of this study was to assess whether selective inhibition of integrin α2β1 is an effective strategy to target metastatic prostate cancer cells. In this regard, we examined the effects of the inhibitor BTT-3033, which selectively interferes with the connection between integrin a2b1 and its ligand, on migration, epithelial-mesenchymal transition (EMT), cell cycle arrest, apoptosis, and specific intracellular signaling pathways using LNcap-FGC and DU-145 prostate cancer cell lines. Western blot analysis and immunocytochemistry assays showed that inhibition of integrin a2b1 inhibits EMT, through the increased expression of E-cadherin and decreased expression of N-cadherin and vimentin. Scratch wound healing assays revealed a direct effect on integrin α2β1 in the migration capacity of cells. In addition, treatment with BTT-3033 induced a reduction in cell viability and proliferation, as assessed by MTT and BrdU assays. In addition, the results show that BTT-3033 inhibits cell proliferation by inducing G1 cell cycle arrest. Moreover, inhibition of integrin α2β1 induces apoptosis through the activation of ROS, Bax protein upregulation, caspase-3 activation, and depletion of ΔΨm. Molecular signaling studies showed that integrin α2β1 was a positive regulator of MKK7 phosphorylation. In conclusion, our results reveal a critical role for integrin a2b1 in the proliferation of prostate cancer cells, as demonstrated by EMT inhibition, cell cycle arrest, and apoptosis induction in response to treatment with its specific inhibitor BT-3033.
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Affiliation(s)
- Zahra Salemi
- Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, Iran.,Department of Biochemistry, Arak University of Medical Sciences, Arak, IR, Iran
| | - Reza Azizi
- Department of Clinical Biochemistry, School of Pharmacy & Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Laboratory Sciences, Khomein University of Medical Sciences, Khomein, Iran
| | - Faranak Fallahian
- Department of Clinical Biochemistry, Faculty of Medicine, Qom University of Medical Sciences, Qom, Iran
| | - Mahmoud Aghaei
- Department of Clinical Biochemistry, School of Pharmacy & Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
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14
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M2 Macrophages Mediate the Resistance of Gastric Adenocarcinoma Cells to 5-Fluorouracil through the Expression of Integrin β3, Focal Adhesion Kinase, and Cofilin. J Immunol Res 2020; 2020:1731457. [PMID: 33299895 PMCID: PMC7710429 DOI: 10.1155/2020/1731457] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 10/14/2020] [Accepted: 11/11/2020] [Indexed: 12/25/2022] Open
Abstract
Tumor microenvironment components dictate the growth and progression of various cancers. Tumor-associated macrophages are the most predominant cells in TME and play a major role in cancer invasiveness. Gastric cancer is one of the most common cancers in Asia, and recently, various cases of resistance to fluorouracil treatment have been reported. In this study, we investigated the role of alternatively activated macrophages in the resistance of AGS gastric cancer cells to fluorouracil. THP-1 cells were polarized using recombinant human IL-4, then were cocultured with AGS cells treated with fluorouracil. Cell viability, Western blot, immunofluorescence, and cell invasion were performed for this investigation. Our results demonstrated that polarized macrophages initiated the survival of treated AGS cells and induced the resistance in AGS by upregulating the expression of integrin β3, focal adhesion protein (FAK), and cofilin proteins. These results reveal that integrin β3, focal adhesion protein (FAK), and cofilin proteins are potential targets for the improvement of fluorouracil efficacy in gastric cancer treatment.
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15
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Ivanova E, Ward A, Wiegmans AP, Richard DJ. Circulating Tumor Cells in Metastatic Breast Cancer: From Genome Instability to Metastasis. Front Mol Biosci 2020; 7:134. [PMID: 32766277 PMCID: PMC7378584 DOI: 10.3389/fmolb.2020.00134] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 06/05/2020] [Indexed: 12/12/2022] Open
Abstract
The emergence of clinical resistance in repeatedly treated cancers extends from the primary tumor's capability to exploit genome instability to adapt, escape, and progress. Triple negative breast cancer serves as a good example of such a response demonstrating poor clinical outcome due to a high rate of cellular heterogeneity resulting in metastatic relapse. The capability to effectively track the emergence of therapeutic resistance in real-time and adapt the clinical response is the holy grail for precision medicine and has yet to be realized. In this review we present liquid biopsy using CTCs and ctDNA as a potential replacement and/or addition to the current diagnostic tests to deliver personalized therapies to patients with advanced breast cancer. We outline current uses of liquid biopsy in the metastatic breast cancer setting and discuss their limitations. In addition, we provide a detailed overview of common genome instability events in patients with metastatic breast cancer and how these can be tracked using liquid biopsy.
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Affiliation(s)
- Ekaterina Ivanova
- Cancer and Ageing Research Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Translational Research Institute, Woolongabba, QLD, Australia.,Centre for Tumour and Immune Biology (ZTI), Philipps University Marburg, Marburg, Germany
| | - Ambber Ward
- Tumor Microenvironment Laboratory, QIMR Berghofer, Herston, QLD, Australia
| | - Adrian P Wiegmans
- Cancer and Ageing Research Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Translational Research Institute, Woolongabba, QLD, Australia
| | - Derek John Richard
- Cancer and Ageing Research Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Translational Research Institute, Woolongabba, QLD, Australia
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16
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Dianat-Moghadam H, Azizi M, Eslami-S Z, Cortés-Hernández LE, Heidarifard M, Nouri M, Alix-Panabières C. The Role of Circulating Tumor Cells in the Metastatic Cascade: Biology, Technical Challenges, and Clinical Relevance. Cancers (Basel) 2020; 12:cancers12040867. [PMID: 32260071 PMCID: PMC7225923 DOI: 10.3390/cancers12040867] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/28/2020] [Accepted: 03/30/2020] [Indexed: 12/12/2022] Open
Abstract
Metastases and cancer recurrence are the main causes of cancer death. Circulating Tumor Cells (CTCs) and disseminated tumor cells are the drivers of cancer cell dissemination. The assessment of CTCs’ clinical role in early metastasis prediction, diagnosis, and treatment requires more information about their biology, their roles in cancer dormancy, and immune evasion as well as in therapy resistance. Indeed, CTC functional and biochemical phenotypes have been only partially characterized using murine metastasis models and liquid biopsy in human patients. CTC detection, characterization, and enumeration represent a promising tool for tailoring the management of each patient with cancer. The comprehensive understanding of CTCs will provide more opportunities to determine their clinical utility. This review provides much-needed insights into this dynamic field of translational cancer research.
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Affiliation(s)
- Hassan Dianat-Moghadam
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz 51368, Iran; (H.D.-M.); (M.N.)
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz 51368, Iran
| | - Mehdi Azizi
- Proteomics Research Center, Tabriz University of Medical Sciences, Tabriz 51368, Iran;
| | - Zahra Eslami-S
- Laboratory of Rare Human Circulating Cells (LCCRH), University Medical Centre of Montpellier, UPRES, EA2415, 34093 Montpellier, France (L.E.C.-H.)
| | - Luis Enrique Cortés-Hernández
- Laboratory of Rare Human Circulating Cells (LCCRH), University Medical Centre of Montpellier, UPRES, EA2415, 34093 Montpellier, France (L.E.C.-H.)
| | - Maryam Heidarifard
- Drug Applied Research Center, Tabriz University of Medical Sciences, 51368 Tabriz, Iran;
| | - Mohammad Nouri
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz 51368, Iran; (H.D.-M.); (M.N.)
| | - Catherine Alix-Panabières
- Laboratory of Rare Human Circulating Cells (LCCRH), University Medical Centre of Montpellier, UPRES, EA2415, 34093 Montpellier, France (L.E.C.-H.)
- Correspondence:
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17
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Wu X, Li F, Dang L, Liang C, Lu A, Zhang G. RANKL/RANK System-Based Mechanism for Breast Cancer Bone Metastasis and Related Therapeutic Strategies. Front Cell Dev Biol 2020; 8:76. [PMID: 32117996 PMCID: PMC7026132 DOI: 10.3389/fcell.2020.00076] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 01/29/2020] [Indexed: 12/17/2022] Open
Abstract
Breast cancer remains one of the most life-threatening tumors affecting women. Most patients with advanced breast cancer eventually develop metastatic diseases, which cause significant morbidity and mortality. Approximately two-thirds of patients with advanced breast cancer exhibit osteolytic-type bone metastasis, which seriously reduce the quality of life. Therefore, development of novel therapeutic strategies for treating breast cancer patients with bone metastasis is urgently required. The "seed and soil" theory, which describes the interaction between the circulating breast cancer cells (seeds) and bone microenvironment (soil), is widely accepted as the mechanism underlying metastasis. Disruption of any step in this cycle might have promising anti-metastasis implications. The interaction of receptor activator of nuclear factor-κB ligand (RANKL) and its receptor RANK is fundamental in this vicious cycle and has been shown to be a novel effective therapeutic target. A series of therapeutic strategies have been developed to intervene in this cross-talk. Therefore, in this review, we have systematically introduced the functions of the RANKL/RANK signaling system in breast cancer and discussed related therapeutic strategies.
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Affiliation(s)
- Xiaoqiu Wu
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong.,Institute of Integrated Bioinfomedicine and Translational Science, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong.,Institute of Precision Medicine and Innovative Drug Discovery, HKBU Institute of Research and Continuing Education, Shenzhen, China
| | - Fangfei Li
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong.,Institute of Integrated Bioinfomedicine and Translational Science, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong.,Institute of Precision Medicine and Innovative Drug Discovery, HKBU Institute of Research and Continuing Education, Shenzhen, China
| | - Lei Dang
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong.,Institute of Integrated Bioinfomedicine and Translational Science, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong.,Institute of Precision Medicine and Innovative Drug Discovery, HKBU Institute of Research and Continuing Education, Shenzhen, China
| | - Chao Liang
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong.,Institute of Integrated Bioinfomedicine and Translational Science, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong.,Institute of Precision Medicine and Innovative Drug Discovery, HKBU Institute of Research and Continuing Education, Shenzhen, China
| | - Aiping Lu
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong.,Institute of Integrated Bioinfomedicine and Translational Science, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong.,Institute of Precision Medicine and Innovative Drug Discovery, HKBU Institute of Research and Continuing Education, Shenzhen, China.,Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China.,Institute of Arthritis Research, Shanghai Academy of Chinese Medical Sciences, Shanghai, China
| | - Ge Zhang
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong.,Institute of Integrated Bioinfomedicine and Translational Science, School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong.,Institute of Precision Medicine and Innovative Drug Discovery, HKBU Institute of Research and Continuing Education, Shenzhen, China
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18
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Deliorman M, Janahi FK, Sukumar P, Glia A, Alnemari R, Fadl S, Chen W, Qasaimeh MA. AFM-compatible microfluidic platform for affinity-based capture and nanomechanical characterization of circulating tumor cells. MICROSYSTEMS & NANOENGINEERING 2020; 6:20. [PMID: 34567635 PMCID: PMC8433216 DOI: 10.1038/s41378-020-0131-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/30/2019] [Accepted: 12/22/2019] [Indexed: 05/05/2023]
Abstract
Circulating tumor cells (CTCs) carried by the patient's bloodstream are known to lead to the metastatic spread of cancer. It is becoming increasingly clear that an understanding of the nanomechanical characteristics of CTCs, such as elasticity and adhesiveness, represents advancements in tracking and monitoring cancer progression and metastasis. In the present work, we describe a combined microfluidic-atomic force microscopy (AFM) platform that uses antibody-antigen capture to routinely isolate and nanomechanically characterize CTCs present in blood samples from prostate cancer patients. We introduce the reversible assembly of a microfluidic device and apply refined and robust chemistry to covalently bond antibodies onto its glass substrate with high density and the desired orientation. As a result, we show that the device can efficiently capture CTCs from patients with localized and metastatic prostate cancer through anti-EpCAM, anti-PSA, and anti-PSMA antibodies, and it is suitable for AFM measurements of captured intact CTCs. When nanomechanically characterized, CTCs originating from metastatic cancer demonstrate decreased elasticity and increased deformability compared to those originating from localized cancer. While the average adhesion of CTCs to the AFM tip surface remained the same in both the groups, there were fewer multiple adhesion events in metastatic CTCs than there were in their counterparts. The developed platform is simple, robust, and reliable and can be useful in the diagnosis and prognosis of prostate cancer as well as other forms of cancer.
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Affiliation(s)
- Muhammedin Deliorman
- Division of Engineering, New York University Abu Dhabi, P.O. Box 129188, Abu Dhabi, UAE
| | - Farhad K. Janahi
- Mohammed Bin Rashid University of Medicine and Health Sciences, P.O. Box 505055, Dubai, UAE
| | - Pavithra Sukumar
- Division of Engineering, New York University Abu Dhabi, P.O. Box 129188, Abu Dhabi, UAE
| | - Ayoub Glia
- Division of Engineering, New York University Abu Dhabi, P.O. Box 129188, Abu Dhabi, UAE
- Department of Mechanical and Aerospace Engineering, New York University, New York, NY 10003 USA
| | - Roaa Alnemari
- Division of Engineering, New York University Abu Dhabi, P.O. Box 129188, Abu Dhabi, UAE
| | - Samar Fadl
- Division of Science, New York University Abu Dhabi, P.O. Box 129188, Abu Dhabi, UAE
| | - Weiqiang Chen
- Department of Mechanical and Aerospace Engineering, New York University, New York, NY 10003 USA
- Department of Biomedical Engineering, New York University, New York, NY 10003 USA
| | - Mohammad A. Qasaimeh
- Division of Engineering, New York University Abu Dhabi, P.O. Box 129188, Abu Dhabi, UAE
- Department of Mechanical and Aerospace Engineering, New York University, New York, NY 10003 USA
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19
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Introduction - Biology of Breast Cancer Metastasis and Importance of the Analysis of CTCs. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1220:1-10. [PMID: 32304076 DOI: 10.1007/978-3-030-35805-1_1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Breast cancer metastasis is a complex multistep process during which tumor cells undergo structural and functional changes that allow them to move away from the primary tumor and disseminate to distant organs and tissues. Despite the inefficiency of this process, some populations of circulating tumor cells (CTCs), which are those cells responsible of metastases formation, are able to survive in blood circulation and grow into secondary tumors. Metastatic breast cancer remains an incurable disease, and the phenomenon of metastasis represents the larger cause of death in these patients. The application of liquid biopsy techniques and the advancements in the field have shown the prognostic value of CTCs, suggesting the importance that CTCs analyses may have in the clinic. However, their implementation in routine clinic has not been yet achieved due to the yet small body of evidence showing their clinical utility. This introductory chapter will revise the key aspects of breast cancer metastasis and discuss the importance of CTC analyses in the management of breast cancer patients.
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20
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Yang Z, Wang J, Zhang Z, Tang F. Epstein-Barr Virus-Encoded Products Promote Circulating Tumor Cell Generation: A Novel Mechanism of Nasopharyngeal Carcinoma Metastasis. Onco Targets Ther 2019; 12:11793-11804. [PMID: 32099385 PMCID: PMC6997419 DOI: 10.2147/ott.s235948] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 12/10/2019] [Indexed: 12/24/2022] Open
Abstract
Epstein–Barr virus (EBV) is a specific tumorigenic factor in the pathogenesis of nasopharyngeal carcinoma (NPC). Viral products encoded by EBV (LMP1, LMP2A, EBNA1, and miRNAs) have been shown to promote NPC metastasis. EBV-encoded oncoproteins and miRNAs have been shown to induce epithelial–mesenchymal transition (EMT) indirectly by inducing EMT transcription factors (EMT-TFs). These EBV-encoded products also promote the expression of EMT-TFs through post-transcriptional regulation. EMT contributes to generation of circulating tumor cells (CTCs) in epithelial cancers. CTCs exhibit stem cell characteristics, including increased invasiveness, enhanced cell intravasation, and improved cell survival in the peripheral system. EBV may contribute NPC metastasis through promoting generation of CTCs. Furthermore, CTC karyotypes are associated with NPC staging, therapeutic sensitivity, and resistance. We summarized studies showing that EBV-encoded virus-proteins and miRNAs promote generation of NPC CTCs, and highlighted the associated mechanism. This synthesis indicated that EBV mediates NPC metastasis through generation of CTCs.
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Affiliation(s)
- Zongbei Yang
- Zhuhai People's Hospital, Zhuhai Hospital of Jinan University, Zhuhai, People's Republic of China.,Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, People's Republic of China
| | - Jing Wang
- Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, People's Republic of China
| | - Zhenlin Zhang
- Zhuhai People's Hospital, Zhuhai Hospital of Jinan University, Zhuhai, People's Republic of China
| | - Faqing Tang
- Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, People's Republic of China
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21
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Steinbichler TB, Savic D, Dejaco D, Romani A, Kofler B, Skvortsova II, Riechelmann H, Dudas J. Pleiotropic Effects of Epithelial Mesenchymal Crosstalk on Head and Neck Cancer: EMT and beyond. CANCER MICROENVIRONMENT : OFFICIAL JOURNAL OF THE INTERNATIONAL CANCER MICROENVIRONMENT SOCIETY 2019; 12:67-76. [PMID: 31297730 PMCID: PMC6937358 DOI: 10.1007/s12307-019-00228-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Accepted: 07/03/2019] [Indexed: 12/30/2022]
Abstract
Epithelial mesenchymal crosstalk (EMC) describes the interaction of the tumor stroma and associated fibroblasts with epithelial cancer cells. In this study we analysed the effects of EMC on head and neck cancer cells. In tumor cell lines EMC was induced using media conditioned from a mix-culture of cancer cells and fibroblasts. Cell proliferation and chemotherapy response were assessed using direct cell counting. Flow cytometry, immunohistochemistry of markers of epithelial-mesenchymal transition (EMT) and subsequent TissueFaxs™ acquisition and quantification and western blot analysis were performed. Holotomographic microscopy imaging was used to visualize the effects of EMC on Cisplatin response of SCC-25 cells. EMC induced a hybrid epithelial-mesenchymal phenotype in SCC-25 cells with co-expression of vimentin and cytokeratin. This hybrid phenotype was associated with chemotherapy resistance and increased proliferation of the cells. The EMC conditioned medium led to an activation of the IL-6/STAT3 pathway with subsequent phosphorylation of STAT3. EMC induced a hybrid epithelial-mesenchymal phenotype in HNSCC cells accompanied by increased therapy resistance and cell proliferation. The IL-6/STAT3 pathway might be one of the major pathways involved in these EMC-related effects.
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Affiliation(s)
- T B Steinbichler
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Innsbruck, Anichstr.35, A-6020, Innsbruck, Austria.
| | - D Savic
- Department of Radiation Oncology, Medical University of Innsbruck, Anichstr.35, A-6020, Innsbruck, Austria
| | - D Dejaco
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Innsbruck, Anichstr.35, A-6020, Innsbruck, Austria
| | - A Romani
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Innsbruck, Anichstr.35, A-6020, Innsbruck, Austria
| | - B Kofler
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Innsbruck, Anichstr.35, A-6020, Innsbruck, Austria
| | - I I Skvortsova
- Department of Radiation Oncology, Medical University of Innsbruck, Anichstr.35, A-6020, Innsbruck, Austria
| | - H Riechelmann
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Innsbruck, Anichstr.35, A-6020, Innsbruck, Austria
| | - J Dudas
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Innsbruck, Anichstr.35, A-6020, Innsbruck, Austria
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22
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Wang Y, Dong C, Zhou BP. Metabolic reprogram associated with epithelial-mesenchymal transition in tumor progression and metastasis. Genes Dis 2019; 7:172-184. [PMID: 32215287 PMCID: PMC7083713 DOI: 10.1016/j.gendis.2019.09.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 09/08/2019] [Accepted: 09/27/2019] [Indexed: 02/09/2023] Open
Abstract
Epithelial-mesenchymal Transition (EMT) is a de-differentiation program that imparts tumor cells with the phenotypic and cellular plasticity required for drug resistance, metastasis, and recurrence. This dynamic and reversible events is governed by a network of EMT-transcription factors (EMT-TFs) through epigenetic regulation. Many chromatin modifying-enzymes utilize metabolic intermediates as cofactors or substrates; this suggests that EMT is subjected to the metabolic regulation. Conversely, EMT rewires metabolic program to accommodate cellular changes during EMT. Here we summarize the latest findings regarding the epigenetic regulation of EMT, and discuss the mutual interactions among metabolism, epigenetic regulation, and EMT. Finally, we provide perspectives of how this interplay contributes to cellular plasticity, which may result in the clinical manifestation of tumor heterogeneity.
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Affiliation(s)
- Yifan Wang
- Cancer Institute of Integrative Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, Zhejiang, 310012, China
| | - Chenfang Dong
- Department of Pathology and Pathophysiology, Department of Surgical Oncology (Breast Center) of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Binhua P Zhou
- Departments of Molecular and Cellular Biochemistry, Markey Cancer Center, University of Kentucky School of Medicine, Lexington, KY, 40506, USA
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23
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Fei Z, Deng Z, Zhou L, Li K, Xia X, Xie R. PD-L1 Induces Epithelial-Mesenchymal Transition in Nasopharyngeal Carcinoma Cells Through Activation of the PI3K/AKT Pathway. Oncol Res 2019; 27:801-807. [PMID: 30982497 PMCID: PMC7848446 DOI: 10.3727/096504018x15446984186056] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Nasopharyngeal cancer (NPC) is a malignant epithelial carcinoma of the head and neck. Cancer therapy targeting programmed cell death protein-1 (PD-1) or programmed death ligand-1 (PD-L1) is revolutionary. However, the tumorigenic mechanism of PD-L1 is not yet clear in NPC. Here we demonstrated an oncogenic role of PD-L1 via activating PI3K/AKT in NPC cells. PD-L1 overexpression was frequently detected in NPC biopsies and cell lines by qRT-PCR. PD-L1 overexpression and knockdown demonstrated that PD-L1 promoted NPC cell invasion and metastasis in vitro and in vivo. Mechanistically, PD-L1 prominently activated the epithelial–mesenchymal transition (EMT) process in a PI3K/AKT-dependent manner. Taken together, we found that PD-L1 overexpression confers NPC cell malignancy and aggressiveness via activating the downstream PI3K/AKT signaling. Thus, these results provide a basis for diagnosis and treatment of NPC.
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Affiliation(s)
- Zhenghua Fei
- Department of Radiation and Medical Oncology, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang, P.R. China
| | - Zhenxiang Deng
- Department of Radiation Oncology, Xiang'an Hospital of Xiamen University, Fujian, P.R. China
| | - Lingyang Zhou
- Department of General Surgery, Yongjia County Traditional Chinese Medicine Hospital, Zhejiang, P.R. China
| | - Kejie Li
- Department of Radiation and Medical Oncology, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang, P.R. China
| | - Xiaofang Xia
- Department of Radiation and Medical Oncology, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang, P.R. China
| | - Raoying Xie
- Department of Radiation and Medical Oncology, The First Affiliated Hospital of Wenzhou Medical University, Zhejiang, P.R. China
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24
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Sánchez-Vásquez E, Bronner ME, Strobl-Mazzulla PH. Epigenetic inactivation of miR-203 as a key step in neural crest epithelial-to-mesenchymal transition. Development 2019; 146:dev.171017. [PMID: 30910825 DOI: 10.1242/dev.171017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 03/15/2019] [Indexed: 01/01/2023]
Abstract
miR-203 is a tumor-suppressor microRNA with known functions in cancer metastasis. Here, we explore its normal developmental role in the context of neural crest development. During the epithelial-to-mesenchymal transition of neural crest cells to emigrate from the neural tube, miR-203 displays a reciprocal expression pattern with key regulators of neural crest delamination, Phf12 and Snail2, and interacts with their 3'UTRs. We show that ectopic maintenance of miR-203 inhibits neural crest migration in chick, whereas its functional inhibition using a 'sponge' vector or morpholinos promotes premature neural crest delamination. Bisulfite sequencing further shows that epigenetic repression of miR-203 is mediated by the de novo DNA methyltransferase DNMT3B, the recruitment of which to regulatory regions on the miR-203 locus is directed by SNAIL2 in a negative-feedback loop. These findings reveal an important role for miR-203 in an epigenetic-microRNA regulatory network that influences the timing of neural crest delamination.
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Affiliation(s)
- Estefanía Sánchez-Vásquez
- Laboratory of Developmental Biology, Instituto Tecnológico de Chascomús (CONICET-UNSAM), Chascomús 7130, Argentina
| | - Marianne E Bronner
- Division of Biology 139-74, California Institute of Technology, Pasadena, CA 91125, USA
| | - Pablo H Strobl-Mazzulla
- Laboratory of Developmental Biology, Instituto Tecnológico de Chascomús (CONICET-UNSAM), Chascomús 7130, Argentina
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25
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Azizi R, Salemi Z, Fallahian F, Aghaei M. Inhibition of didscoidin domain receptor 1 reduces epithelial-mesenchymal transition and induce cell-cycle arrest and apoptosis in prostate cancer cell lines. J Cell Physiol 2019; 234:19539-19552. [PMID: 30963567 DOI: 10.1002/jcp.28552] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 03/04/2019] [Accepted: 03/06/2019] [Indexed: 12/14/2022]
Abstract
Didscoidin domain receptor 1 (DDR1) is involved in the progression of prostate cancer metastasis through stimulation of epithelial-mesenchymal transition (EMT). So DDR1 inhibition can be a helpful target for cancer metastasis prevention. So, we studied the effects of DDR1 inhibition on EMT as well as induction of cell-cycle arrest and apoptosis in prostate cancer cell lines. DDR1 expression was evaluated using reverse-transcription polymerase chain reaction and western blot analysis. The EMT-associated protein expression was determined using the western blot analysis and immunocytochemistry following treatment with various concentrations of DDR1 inhibitor. The activation of DDR1 and also downstream-signaling molecules Pyk2 and MKK7 were determined using western blot analysis. Cell survival and proliferation after DDR1 inhibition were evaluated using 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyltetrazolium bromide, bromodeoxyuridine, and colony formation assays. Flow cytometry analysis was used to determine the effects of DDR1 inhibition on cell-cycle arrest and apoptosis using annexin V/propidium iodide-based flow cytometry. Results showed that the protein expression of N-cadherin and vimentin were decreased whereas protein expression of E-cadherin was increased after DDR1 inhibition. Results of our western blot analysis indicated that DDR1 inhibitor effectively downregulated P-DDR1, P-Pyk2, and P-MKK7 levels. This result also showed that DDR1 inhibition decreased cell survival and proliferation, induced G1 cell-cycle arrest, induced apoptosis by an increase in the Bax/Bcl-2 ratio and depletion of the mitochondrial membrane potential, and also by reactive oxygen species creation in prostate cancer cells. These data show that DDR1 inhibition can result in the EMT prevention via inhibition of Pyk2 and MKK7 signaling pathway and induces cell-cycle arrest and apoptosis in prostate cancer cell lines. Thus, this study identifies DDR1 as an important target for modulating EMT and induction of apoptosis in prostate cancer cells.
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Affiliation(s)
- Reza Azizi
- Department of Clinical Biochemistry, School of Pharmacy & Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Salemi
- Department of Biochemistry, Arak University of Medical Sciences, Arak, Iran.,Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, Iran
| | - Faranak Fallahian
- Department of Clinical Biochemistry, Faculty of Medicine, Qom University of Medical Sciences, Qom, Iran.,Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
| | - Mahmoud Aghaei
- Department of Clinical Biochemistry, School of Pharmacy & Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
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26
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Zhou Y, Ma Z, Ai Y. Hybrid microfluidic sorting of rare cells based on high throughput inertial focusing and high accuracy acoustic manipulation. RSC Adv 2019; 9:31186-31195. [PMID: 35529382 PMCID: PMC9072550 DOI: 10.1039/c9ra01792e] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 09/16/2019] [Indexed: 12/16/2022] Open
Abstract
The ability to isolate rare circulating tumor cells (CTCs) from blood samples is essential to perform liquid biopsy as a routine diagnostic and prognostic test. Both label-free and surface biomarker-based cell sorting technologies have been developed to address the demand in high-integrity isolation of rare CTCs for cancer research. Label-free cell sorting mainly relies on the size difference between CTCs and blood cells; thus, it lacks sufficient sorting specificity. Surface biomarker-based cell sorting is highly specific; however, it requires expensive, labor-intensive, and time-consuming labeling due to the use of multiple sets of surface biomarkers. Because of the complex nature and high heterogeneity of tumorigenesis, it is difficult to rely on a single sorting process for high-integrity rare cell isolation. In this study, for the first time, we present a hybrid microfluidic cell sorting method combining high throughput size-dependent inertial focusing for size-based pre-enrichment and high accuracy fluorescence activated acoustic sorting for single cell isolation. After one single hybrid sorting process, we have demonstrated at least 2500-fold purity enrichment of MCF-7 breast cancer cells spiked in diluted whole blood samples with cell viability maintained at 91 ± 1% (viability before sorting was 94 ± 2%). This developed hybrid microfluidic cell sorting technique provides a promising solution for rare cell isolation needed in a variety of biological research and clinical applications. The first example of integration of sized-based inertial sorting and surface biomarker-based acoustic sorting to achieve >2500-fold enrichment of rare cell populations.![]()
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Affiliation(s)
- Yinning Zhou
- Pillar of Engineering Product Development
- Singapore University of Technology and Design
- Singapore 487372
- Singapore
| | - Zhichao Ma
- Pillar of Engineering Product Development
- Singapore University of Technology and Design
- Singapore 487372
- Singapore
| | - Ye Ai
- Pillar of Engineering Product Development
- Singapore University of Technology and Design
- Singapore 487372
- Singapore
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27
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Spugnini EP, Logozzi M, Di Raimo R, Mizzoni D, Fais S. A Role of Tumor-Released Exosomes in Paracrine Dissemination and Metastasis. Int J Mol Sci 2018; 19:E3968. [PMID: 30544664 PMCID: PMC6321583 DOI: 10.3390/ijms19123968] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 12/04/2018] [Accepted: 12/07/2018] [Indexed: 12/13/2022] Open
Abstract
Metastatic diffusion is thought to be a multi-step phenomenon involving the release of cells from the primary tumor and their diffusion through the body. Currently, several hypotheses have been put forward in order to explain the origin of cancer metastasis, including epithelial⁻mesenchymal transition, mutagenesis of stem cells, and a facilitating role of macrophages, involving, for example, transformation or fusion hybridization with neoplastic cells. In this paradigm, tumor-secreted extracellular vesicles (EVs), such as exosomes, play a pivotal role in cell communications, delivering a plethora of biomolecules including proteins, lipids, and nucleic acids. For their natural role in shuttling molecules, EVs have been newly considered a part of the metastatic cascade. They have a prominent role in preparing the so-called "tumor niches" in target organs. However, recent evidence has pointed out an even more interesting role of tumor EVs, consisting in their ability to induce malignant transformation in resident mesenchymal stem cells. All in all, in this review, we discuss the multiple involvements of EVs in the metastatic cascade, and how we can exploit and manipulate EVs in order to reduce the metastatic spread of malignant tumors.
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Affiliation(s)
| | - Mariantonia Logozzi
- Department of Oncology and Molecular Medicine, National Institute of Health, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Rossella Di Raimo
- Department of Oncology and Molecular Medicine, National Institute of Health, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Davide Mizzoni
- Department of Oncology and Molecular Medicine, National Institute of Health, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Stefano Fais
- Department of Oncology and Molecular Medicine, National Institute of Health, Viale Regina Elena 299, 00161 Rome, Italy.
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28
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Zhang X, Wei L, Li J, Zheng J, Zhang S, Zhou J. Epithelial‑mesenchymal transition phenotype of circulating tumor cells is associated with distant metastasis in patients with NSCLC. Mol Med Rep 2018; 19:601-608. [PMID: 30483792 DOI: 10.3892/mmr.2018.9684] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 10/24/2018] [Indexed: 11/06/2022] Open
Abstract
Circulating tumor cells (CTCs) are closely associated with cancer metastasis in preclinical models and patients with cancer. However, to the best of the authors knowledge, it remains unknown which type of CTCs may serve the key role in cancer metastasis. The present study investigated the association between the epithelial‑mesenchymal transition (EMT) phenotype of CTCs from the peripheral blood and distant metastasis in patients with non‑small cell lung cancer (NSCLC). Expression of EMT markers in CTCs from a cohort of patients was detected using Canpatrol™ CTC assays. A total of 110 patients (85 patients with NSCLC and 25 patients with benign diseases) were recruited. Among the 110 patients, 88 (80.0%) were characterized as CTC positive with EMT markers. Receiver operating characteristic curves revealed that E+/M+ CTCs exhibited the highest area under the curve (AUC) value of 0.876 [95% confidence interval (CI), 0.805‑0.948; P<0.001) in distinguishing between patients with NSCLC and benign pulmonary diseases, and M+ CTCs had the highest AUC value of 0.723 (95% CI, 0.612‑0.833; P<0.001) in differentiating patients with NSCLC with distant metastasis from those with non‑distant metastasis. The results indicate the potential predictive value of distant metastasis of the EMT phenotype of CTCs in the peripheral blood of patients with NSCLC.
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Affiliation(s)
- Xiaochen Zhang
- Department of Medical Oncology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
| | - Liyuan Wei
- Department of Medical Oncology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
| | - Jun Li
- Department of Pathology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
| | - Jing Zheng
- Department of Respiratory Disease, Thoracic Disease Centre, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
| | - Shirong Zhang
- Department of Oncology, Hangzhou First People's Hospital, Hangzhou, Zhejiang 310006, P.R. China
| | - Jianying Zhou
- Department of Respiratory Disease, Thoracic Disease Centre, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
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29
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Jiedu Sangen Decoction Inhibits Migration and Invasion of Colon Cancer SW480 Cells via Suppressing Epithelial Mesenchymal Transition. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:1495768. [PMID: 30356400 PMCID: PMC6176311 DOI: 10.1155/2018/1495768] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 07/18/2018] [Accepted: 09/05/2018] [Indexed: 12/16/2022]
Abstract
Jiedu Sangen Decoction (JSD), a traditional Chinese medicine (TCM) formula, has been widely used in China to treat gastrointestinal cancer, especially as an adjuvant therapy in colorectal cancer (CRC) patients. This study aimed to evaluate the efficacy of JSD and Jiedu Sangen aqueous extract (JSAE) in colon cancer cells and explored the underlining mechanisms by cytotoxicity assay, scratch assay, transwell migration assay, matrigel invasion assay, confocal laser scanning microscopy, and western blot analysis. We demonstrated that JSAE inhibited the growth of colon cancer SW480 cells in a dose-dependent manner and JSAE repressed cancer cell migration and invasion. Furthermore, epithelial mesenchymal transition (EMT) was reversed by JSAE via enhancing E-cadherin expression and attenuating protein levels of EMT promoting factors such as N-cadherin, Slug, and ZEB1. These findings provided the first experimental evidence confirming the efficacy of JSAE in repressing invasion and metastasis of CRC and paving a way for the broader use of JSD in clinic.
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30
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Lin MT, Song HJ, Ding XY. Long non-coding RNAs involved in metastasis of gastric cancer. World J Gastroenterol 2018; 24:3724-3737. [PMID: 30197478 PMCID: PMC6127659 DOI: 10.3748/wjg.v24.i33.3724] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 05/22/2018] [Accepted: 06/27/2018] [Indexed: 02/06/2023] Open
Abstract
Gastric cancer (GC) is one of the most frequently diagnosed malignant diseases. The molecular mechanisms of metastasis remain unclear. Recently, studies have shown that long non-coding RNAs (lncRNAs) play critical roles in metastasis. Therefore, deeper understanding of this mechanism could provide potential diagnostic tools and therapeutic targets for metastatic GC. This review focuses on dysregulated lncRNAs in GC metastases. Due to the identification of multiple diverse mechanisms involved in GC metastasis, we classified them into seven categories, including lncRNAs related to epithelial-mesenchymal transition, regulation of degradation of extracellular matrix, angiopoiesis, vasculogenic mimicry, and immunologic escape. As the TNM stage is pivotal for evaluating the severity and prognosis of GC patients, we summarize the lncRNAs relevant to lymphatic metastasis, distant metastasis and TNM classification. This review summarizes the lncRNAs related to metastasis, which may provide insight into the mechanisms, and provide potential markers for prognostic prediction and monitoring the relapse of GC.
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MESH Headings
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Cell Movement/genetics
- Epithelial-Mesenchymal Transition/genetics
- Extracellular Matrix/genetics
- Extracellular Matrix/metabolism
- Extracellular Matrix/pathology
- Gene Expression Regulation, Neoplastic
- Humans
- Lymphatic Metastasis
- Neoplasm Recurrence, Local/genetics
- Neoplasm Recurrence, Local/immunology
- Neoplasm Recurrence, Local/pathology
- Neovascularization, Pathologic/genetics
- Neovascularization, Pathologic/immunology
- Neovascularization, Pathologic/pathology
- Prognosis
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/immunology
- RNA, Long Noncoding/metabolism
- Stomach Neoplasms/genetics
- Stomach Neoplasms/immunology
- Stomach Neoplasms/mortality
- Stomach Neoplasms/pathology
- Tumor Escape/genetics
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Affiliation(s)
- Meng-Ting Lin
- Medical School of Ningbo University, Ningbo 315000, Zhejiang Province, China
| | - Hao-Jun Song
- Gastroenterology Department, Ningbo First Hospital, Ningbo 315000, Zhejiang Province, China
| | - Xiao-Yun Ding
- Gastroenterology Department, Ningbo First Hospital, Ningbo 315000, Zhejiang Province, China
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31
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Cai WX, Yu RQ, Ma L, Huang HZ, Zheng LW, Zwahlen R. Differences between epithelial and mesenchymal human tongue cancer cell lines in experimental metastasis. Oncol Lett 2018; 15:9959-9964. [PMID: 29928368 DOI: 10.3892/ol.2018.8591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 02/08/2018] [Indexed: 12/26/2022] Open
Abstract
Distant metastasis represents the outcome with the worst prognosis for various types of malignant tumors, but little is known regarding the impact of interacting epithelial and mesenchymal phenotypic cancer cells within its etiopathogenesis. In a novel animal model, 48 male athymic Balb/c nude mice underwent subcutaneous and intravenous injection of human tongue cancer cell lines of green fluorescent mesenchymal and red fluorescent epithelial phenotypes, in order to visualize and monitor eventual phenotypic interaction in lung metastasis as well as experimental metastasis in in vivo, ex vivo and histopathological analyses. While the epithelial, but not the mesenchymal, phenotypic human tongue cancer cell line led to direct metastasis in the lungs when injected intravenously, neither of them, even when injected in combination, were able to establish distant metastasis. The results of the present study provide evidence regarding the role of epithelial phenotypic cancer cells in the release of experimental metastasis following tail vein injection in male athymic Balb/c nude mice, in addition to proving fluorescent human tongue cancer cells may be reliably detected under a fluorescence microscope even 8 weeks after the two injection types.
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Affiliation(s)
- Wei-Xin Cai
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong 510055, P.R. China.,Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong 510055, SAR, P.R. China
| | - Ru Qing Yu
- Department of Oral Diagnosis and Polyclinics, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, P.R. China
| | - Li Ma
- Department of Oral Rehabilitation, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, P.R. China
| | - Hong Zhang Huang
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong 510055, P.R. China.,Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong 510055, SAR, P.R. China
| | - Li Wu Zheng
- Department of Oral Diagnosis and Polyclinics, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, P.R. China
| | - Roger Zwahlen
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, P.R. China
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32
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Chen W, Li Y, Yuan D, Peng Y, Qin J. Practical value of identifying circulating tumor cells to evaluate esophageal squamous cell carcinoma staging and treatment efficacy. Thorac Cancer 2018; 9:956-966. [PMID: 29893036 PMCID: PMC6068454 DOI: 10.1111/1759-7714.12771] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 04/30/2018] [Accepted: 04/30/2018] [Indexed: 12/12/2022] Open
Abstract
Background This study was conducted to investigate the correlation between clinicopathological features and post‐therapeutic response in esophageal squamous cell carcinoma (ESCC) patients. Peripheral blood circulating tumor cells (CTCs) expressing epithelial‐mesenchymal transition markers were identified. Methods Peripheral blood samples were collected from 71 patients with newly diagnosed ESCC and 40 healthy volunteers. CTCs were isolated using CanPatrol CTC enrichment technology. RNA‐fluorescent in situ hybridization was used to phenotype the CTCs on the basis of epithelial and/or mesenchymal markers. Results The median mesenchymal CTC counts in 71 patients were: 0 in 19 stage I patients, 2 in 31 stage II, and 3 in 21 stage III/IV. The overall diagnostic performance of total CTCs to correctly identify ESCC patients was 0.991. We observed a correlation between increases in tumor size or advanced stage and an increased number of mesenchymal CTCs (P < 0.05). Thirty‐nine patients were administered two cycles of neoadjuvant chemotherapy and their therapeutic response was evaluated: 2 complete response, 20 partial response, 13 stable disease, and 4 progressive disease. After treatment, the positive rate of mesenchymal CTCs was 70.6% in the progressive and stable disease group versus 36.4% in the complete and partial response group (P = 0.05). Conclusion The results showed that mesenchymal CTC count is related to ESCC clinical stage and the efficacy of neoadjuvant chemotherapy.
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Affiliation(s)
- Weipeng Chen
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Yin Li
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dongfeng Yuan
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Yinjie Peng
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianjun Qin
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China.,Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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33
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Zeng Y, Wang X, Wang J, Yi R, Long H, Zhou M, Luo Q, Zhai Z, Song Y, Qi S. The Tumorgenicity of Glioblastoma Cell Line U87MG Decreased During Serial In Vitro Passage. Cell Mol Neurobiol 2018; 38:1245-1252. [PMID: 29948550 DOI: 10.1007/s10571-018-0592-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 05/17/2018] [Indexed: 02/08/2023]
Abstract
Established cancer cell lines are routinely used to study cancer. Several factors such as serial passage may affect the reproducibility of experiments with cancer cell lines, but few researches focused on these changes. In the present study, different morphology and decreased tumorigenicity were observed in late passage U87MG cells. In vitro experiments further revealed that late passage U87MG cells possessed lower invasion properties than early passage, whereas no significant differences of proliferation and migration were found between early and late passage U87MG cells. In particular, we confirmed that late passage U87MG cells exhibited more epithelial phenotype with decreased PI3K/Akt pathway and TGF-β pathway expressions at protein level. In summary, our results focused on the changes of U87MG cells during serial in vitro passage, suggested that passage-induced changes may lead to notable changes of biological characteristics and several molecular transitions in cancer cell lines, indicating the necessity to shorten experiment-span and accomplish experiments with the same or similar passage cancer cell strains.
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Affiliation(s)
- Yu Zeng
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Xizhao Wang
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Jizhou Wang
- Department of Neurosurgery, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, Guangdong, People's Republic of China
| | - Renhui Yi
- Gannan Medical University, Ganzhou, 341000, Jiangxi, People's Republic of China.,Department of Neurosurgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, Jiangxi, People's Republic of China
| | - Hao Long
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Mingfeng Zhou
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Qisheng Luo
- Department of Neurosurgery, Affiliated Hospital of Youjiang Medical College for Nationalities, Baise, 533000, Guangxi, People's Republic of China
| | - Zhihao Zhai
- Department of Neurosurgery, The Eighth Affiliated Hospital, Sun Yat-Sen University, Futian, Shenzhen, 518000, People's Republic of China
| | - Ye Song
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China.
| | - Songtao Qi
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China.
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34
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Kim YH, Hwang E, Lee HS, Uh JH, Kim MS, Jeon BH. Identification of circulating tumor cells with EML4-ALK translocation using fluorescence in situ hybridization in advanced ALK-positive patients with lung cancer. Oncol Lett 2018; 15:8959-8964. [PMID: 29805631 PMCID: PMC5958740 DOI: 10.3892/ol.2018.8480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 08/17/2017] [Indexed: 12/13/2022] Open
Abstract
Analysis of anaplastic lymphoma kinase (ALK) rearrangement in non-small cell lung cancer (NSCLC) is considered to be a useful tool when considering predictive biomarker detection for evaluating eligibility for targeted therapy. It is not always possible to perform a tumor biopsy in patients. Isolation and culturing of circulating tumor cells (CTCs) may be an alternative to tumor biopsies for the diagnosis of ALK rearrangement. Blood was collected from 22 patients with NSCLC harboring ALK rearrangement and was divided into two groups: One for immunofluorescence staining and the other for culture. Samples were filtered by size and cultured CTCs were analyzed for echinoderm microtubule-associated protein-like 4-ALK translocation using fluorescence in situ hybridization. CTCs positive for epithelial cell adhesion molecule and CTCs exhibiting ALK rearrangement were detected. Therefore, CTCs may be used as a potential alternative method to tissue biopsy for diagnosing ALK rearrangement. Additionally, this method may have clinical applications including serial blood sampling for the development of personalized cancer therapy based on individual genomic information.
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Affiliation(s)
| | | | | | - Ji-Hyun Uh
- Cytogen, Inc., Seoul 05838, Republic of Korea
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35
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Uterine carcinosarcoma-induced pulmonary tumor thrombotic microangiopathy: A case report. HUMAN PATHOLOGY: CASE REPORTS 2018. [DOI: 10.1016/j.ehpc.2017.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] Open
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36
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The Predictive Value of Circulating Tumor Cells in Ovarian Cancer: A Meta Analysis. Int J Gynecol Cancer 2018; 27:1109-1117. [PMID: 25893279 DOI: 10.1097/igc.0000000000000459] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE Studies have confirmed that patients with circulating tumor cells (CTCs) in their peripheral blood (PB) or disseminated tumor cells (DTCs) in bone marrow (BM) might have bad prognosis. In this paper, we discuss whether CTCs/DTCs would be an appropriate biomarker to predict the prognosis of ovarian cancer. METHODS We systematically searched PubMed, EMBASE, Cochrane library, and Chinese National Knowledge Infrastructure to collect relevant studies published from the time the database were created to February 2014. Studies quality was assessed by Newcastle-Ottawa Scale. The effect size was estimated by hazard ratio (HR) and corresponding 95% confidence interval (95% CI). Meta-analysis was conducted with STATA Version 12.0. RESULTS Eight studies of 1184 patients were included in the final analysis. In the PB group, it showed that patients with positive CTCs had significantly shorter overall survival and disease-free survival than patients with negative CTCs (HR, 2.09; CI, 1.13-3.88 and HR, 1.72; CI, 1.32-2.25, respectively). The same result was shown with DTCs in the BM group (HR, 1.61; CI, 1.27-2.04 and HR, 1.44; CI, 1.15-1.80, respectively). We also discussed the influence of CTCs/DTCs on International Federation of Gynecology and Obstetrics stage, pathological grade with odds ratio and 95% CI. However, it did not show any statistical significance. CONCLUSIONS The CTCs/DTCs might be a new biomarker to predict the prognosis of ovarian cancer. Future studies are needed to confirm this consequence.
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Abstract
The majority of cancer-related deaths result from metastasis, the process by which cancer cells escape the primary tumor site and enter into the blood circulation in order to disseminate to secondary locations throughout the body. Tumor cells found within the circulation are referred to as circulating tumor cells (CTCs), and their detection and enumeration correlate with poor prognosis. The epithelial-to-mesenchymal transition (EMT) is a dynamic process that imparts epithelial cells with mesenchymal-like properties, thus facilitating tumor cell dissemination and contributing to metastasis. However, EMT also results in the downregulation of various epithelial proteins typically utilized by CTC technologies for enrichment and detection of these rare cells, resulting in reduced detection of some CTCs, potentially those with a more metastatic phenotype. In addition to the current clinical role of CTCs as a prognostic biomarker, they also have potential as a predictive biomarker via CTC characterization. However, CTC characterization is complicated by the unknown biological significance of CTCs possessing an EMT-like phenotype, and the ability to capture and understand this CTC subpopulation is an essential step in the utilization of CTCs for patient management. This chapter will review the process of EMT and its contribution to metastasis; discusses current and future clinical applications of CTCs; and describes both traditional and novel methods for CTC enrichment, detection, and characterization with a specific focus on CTCs with an EMT phenotype.
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38
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Che J, Yu V, Dhar M, Renier C, Matsumoto M, Heirich K, Garon EB, Goldman J, Rao J, Sledge GW, Pegram MD, Sheth S, Jeffrey SS, Kulkarni RP, Sollier E, Di Carlo D. Classification of large circulating tumor cells isolated with ultra-high throughput microfluidic Vortex technology. Oncotarget 2017; 7:12748-60. [PMID: 26863573 PMCID: PMC4914319 DOI: 10.18632/oncotarget.7220] [Citation(s) in RCA: 129] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 01/21/2016] [Indexed: 02/07/2023] Open
Abstract
Circulating tumor cells (CTCs) are emerging as rare but clinically significant non-invasive cellular biomarkers for cancer patient prognosis, treatment selection, and treatment monitoring. Current CTC isolation approaches, such as immunoaffinity, filtration, or size-based techniques, are often limited by throughput, purity, large output volumes, or inability to obtain viable cells for downstream analysis. For all technologies, traditional immunofluorescent staining alone has been employed to distinguish and confirm the presence of isolated CTCs among contaminating blood cells, although cells isolated by size may express vastly different phenotypes. Consequently, CTC definitions have been non-trivial, researcher-dependent, and evolving. Here we describe a complete set of objective criteria, leveraging well-established cytomorphological features of malignancy, by which we identify large CTCs. We apply the criteria to CTCs enriched from stage IV lung and breast cancer patient blood samples using the High Throughput Vortex Chip (Vortex HT), an improved microfluidic technology for the label-free, size-based enrichment and concentration of rare cells. We achieve improved capture efficiency (up to 83%), high speed of processing (8 mL/min of 10x diluted blood, or 800 μL/min of whole blood), and high purity (avg. background of 28.8±23.6 white blood cells per mL of whole blood). We show markedly improved performance of CTC capture (84% positive test rate) in comparison to previous Vortex designs and the current FDA-approved gold standard CellSearch assay. The results demonstrate the ability to quickly collect viable and pure populations of abnormal large circulating cells unbiased by molecular characteristics, which helps uncover further heterogeneity in these cells.
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Affiliation(s)
- James Che
- Department of Bioengineering, University of California, Los Angeles, California, USA.,Vortex Biosciences, Menlo Park, California, USA
| | - Victor Yu
- Department of Bioengineering, University of California, Los Angeles, California, USA
| | - Manjima Dhar
- Department of Bioengineering, University of California, Los Angeles, California, USA
| | - Corinne Renier
- Vortex Biosciences, Menlo Park, California, USA.,Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Melissa Matsumoto
- Department of Bioengineering, University of California, Los Angeles, California, USA
| | - Kyra Heirich
- Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Edward B Garon
- Department of Hematology & Oncology, UCLA Medical Center, Los Angeles, California, USA
| | - Jonathan Goldman
- Department of Hematology & Oncology, UCLA Medical Center, Los Angeles, California, USA
| | - Jianyu Rao
- Department of Pathology & Laboratory Medicine, UCLA Medical Center, Los Angeles, California, USA
| | | | - Mark D Pegram
- Stanford Women's Cancer Center, Stanford, California, USA
| | - Shruti Sheth
- Stanford Women's Cancer Center, Stanford, California, USA
| | - Stefanie S Jeffrey
- Department of Surgery, Stanford University School of Medicine, Stanford, California, USA.,Stanford Women's Cancer Center, Stanford, California, USA
| | - Rajan P Kulkarni
- Department of Bioengineering, University of California, Los Angeles, California, USA.,Division of Dermatology, UCLA Medical Center, Los Angeles, California, USA
| | - Elodie Sollier
- Department of Bioengineering, University of California, Los Angeles, California, USA.,Vortex Biosciences, Menlo Park, California, USA.,Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Dino Di Carlo
- Department of Bioengineering, University of California, Los Angeles, California, USA.,California NanoSystems Institue, Los Angeles, California, USA.,Jonsson Comprehensive Cancer Center, Los Angeles, California, USA
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Abstract
Distant metastasis during the advanced stage of malignant tumor progression can cause considerable morbidity in cancer patients. Bone is known to be one of the most common sites of distant metastasis in patients with breast cancer (BC). BC metastases in bone are associated with excessive skeletal complications. These complications can be fatal and reduce quality of life of patients. It is important to understand the metastatic process of BC to bone to improve quality of life and design new therapeutic methods. At present, the molecular mechanisms leading to the BC metastasis to bone are not fully understood. Studying the molecular basis of BC metastasis to bone might improve our insight into this complex process. In addition, it can provide novel approaches for designing advanced and effective targeted therapies. The present article aimed to review the published papers on the molecular basis of the metastatic process of BC to bone, focusing on involved genes and signaling networks. Furthermore, we propose potential therapeutic targets that may be more effective for the inhibition and treatment of BC metastasis to bone.
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40
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Xu Z, Zheng G, Wang Y, Zhang C, Yu J, Teng F, Lv H, Cheng X. Aqueous Huaier Extract Suppresses Gastric Cancer Metastasis and Epithelial to Mesenchymal Transition by Targeting Twist. J Cancer 2017; 8:3876-3886. [PMID: 29151976 PMCID: PMC5688942 DOI: 10.7150/jca.20380] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Accepted: 08/14/2017] [Indexed: 12/21/2022] Open
Abstract
Trametes robiniophila Murr. (Huaier) is a widely used anti-cancer agent in China. Strong evidence for the anti-proliferative activity of Huaier has been reported; however, its anti-metastatic potential against gastric cancer (GC) as well as its underlying mechanism of action are unknown. Here, we show that treatment with an aqueous Huaier extract over a range of concentrations significantly suppressed both the invasiveness and migratory ability of GC cells. Huaier could also partly reverse the epithelial-mesenchymal transition (EMT), as characterized by increased expression of the epithelial marker E-cadherin and decreased expression of the mesenchymal markers N-cadherin and vimentin. In addition, Huaier-treated cells expressed lower levels of Twist compared to untreated controls, and overexpression of Twist via transfection could partially abolish the anti-metastatic activity of Huaier. Furthermore, elevated Twist expression was correlated with an advanced TNM stage, a high rate of lymph node metastasis, and reduced disease-free survival in GC patients. These findings reveal a novel anti-metastatic mechanism for Huaier, which inhibits the EMT by targeting Twist, suggesting its potential application against a GC relapse.
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Affiliation(s)
- Zhiyuan Xu
- Department of gastrointestinal surgery, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Guowei Zheng
- Department of gastrointestinal surgery, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Yiping Wang
- Key Laboratory of integrated traditional Chinese and Western Medicine for diagnosis and treatment of digestive system tumor, Hangzhou, Zhejiang, China
| | - Chunli Zhang
- Department of pathology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Jianfa Yu
- Department of gastrointestinal surgery, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Fei Teng
- Department of gastrointestinal surgery, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Hang Lv
- Key Laboratory of integrated traditional Chinese and Western Medicine for diagnosis and treatment of digestive system tumor, Hangzhou, Zhejiang, China
| | - Xiangdong Cheng
- Department of gastrointestinal surgery, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
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41
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Targeting epithelial-mesenchymal plasticity in cancer: clinical and preclinical advances in therapy and monitoring. Biochem J 2017; 474:3269-3306. [PMID: 28931648 DOI: 10.1042/bcj20160782] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 08/01/2017] [Accepted: 08/07/2017] [Indexed: 02/07/2023]
Abstract
The concept of epithelial-mesenchymal plasticity (EMP), which describes the dynamic flux within the spectrum of phenotypic states that invasive carcinoma cells may reside, is being increasingly recognised for its role in cancer progression and therapy resistance. The myriad of events that are able to induce EMP, as well as the more recently characterised control loops, results in dynamic transitions of cancerous epithelial cells to more mesenchymal-like phenotypes through an epithelial-mesenchymal transition (EMT), as well as the reverse transition from mesenchymal phenotypes to an epithelial one. The significance of EMP, in its ability to drive local invasion, generate cancer stem cells and facilitate metastasis by the dissemination of circulating tumour cells (CTCs), highlights its importance as a targetable programme to combat cancer morbidity and mortality. The focus of this review is to consolidate the existing knowledge on the strategies currently in development to combat cancer progression via inhibition of specific facets of EMP. The prevalence of relapse due to therapy resistance and metastatic propensity that EMP endows should be considered when designing therapy regimes, and such therapies should synergise with existing chemotherapeutics to benefit efficacy. To further improve upon EMP-targeted therapies, it is imperative to devise monitoring strategies to assess the impact of such treatments on EMP-related phenomenon such as CTC burden, chemosensitivity/-resistance and micrometastasis in patients.
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42
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Zhang R, Xia T. Long non-coding RNA XIST regulates PDCD4 expression by interacting with miR-21-5p and inhibits osteosarcoma cell growth and metastasis. Int J Oncol 2017; 51:1460-1470. [PMID: 29048648 PMCID: PMC5643066 DOI: 10.3892/ijo.2017.4127] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 08/09/2017] [Indexed: 12/11/2022] Open
Abstract
lncRNA-X-inactive specific transcript (lncRNA XIST) has been demonstrated to be a tumor suppressor involved in the pathogenesis and development of various cancers. However, the function of XIST and its working mechanism in osteosarcoma (OS) remain enigmatic. Firstly, we determined the expression of XIST in OS tissues and cell lines by quantitative reverse transcription-PCR (qRT-PCR) and explored whether aberrant XIST expression was associated with recurrence and short overall survival. Furthermore, the effects of XIST on osteosarcoma cells were studied by lentivirus mediated overexpression approach in vitro and in vivo. Detection of a set of epithelial-mesenchymal transition (EMT) markers was performed to explore whether XIST is involved in EMT. Finally, we investigated the regulatory mechanism of XIST acting as a competitive endogenous RNA (ceRNA) of miR-21-5p in OS progression and metastasis. lncRNA XIST was significantly downregulated in osteosarcoma tissues and osteosarcoma cells, and associated with recurrence and short overall survival in OS patients. XIST overexpression remarkably inhibited the proliferation of OS cells as well as the xenograft tumor formation in vivo. Both cell invasion and migration were inhibited by XIST overexpression via suppressing the EMT process. These results indicated that XIST functioned as a tumor suppressor in OS. Moreover, we found that miR-21-5p interacted with XIST by directly targeting the miRNA-binding site in the XIST sequence, and qRT-PCR results showed XIST and miR-21-5p could affect each other's expression, respectively. The following assays verified that the tumor suppressor, PDCD4 was a functional target of miR-21-5p in OS cells. Finally, we affirmed that XIST regulated PDCD4 expression by competitively binding to miR-21-5p. XIST inhibited cell proliferation and cell mobility by competitively binding to miR-21-5p and upregulating PDCD4 in OS. Our study demonstrated that lncRNA-XIST, which acts as a miRNA sponge, impedes miR-21-5p to maintain the expression of PDCD4, which contributes to the progression of OS. Our findings suggest that the newly identified XIST/miR-21-5p/PDCD4 axis could be a potential biomarker or therapeutic target for OS.
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Affiliation(s)
- Rui Zhang
- Department of Orthopaedics, South Campus, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 201112, P.R. China
| | - Tian Xia
- Shanghai Mierxuan Biotechnology Co., Ltd., Shanghai 200233, P.R. China
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43
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Chockley PJ, Keshamouni VG. Immunological Consequences of Epithelial-Mesenchymal Transition in Tumor Progression. THE JOURNAL OF IMMUNOLOGY 2017; 197:691-8. [PMID: 27431984 DOI: 10.4049/jimmunol.1600458] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/18/2016] [Indexed: 12/26/2022]
Abstract
Microenvironments that tumor cells encounter are different during the stages of cancer progression-primary tumor, metastasis, and at the metastatic site. This suggests potential differences in immune surveillance of primary tumor and metastasis. Epithelial-mesenchymal transition (EMT) is a key reversible process in which cancer cells transition into highly motile and invasive cells for dissemination. Only a tiny proportion successfully metastasize, supporting the notion of metastasis-specific immune surveillance. EMT involves extensive molecular reprogramming of cells conferring many clinically relevant features to cancer cells and affects tumor cell interactions within the tumor microenvironment. We review the impact of tumor immune infiltrates on tumor cell EMT and the consequences of EMT in shaping the immune microenvironment of tumors. The usefulness of EMT as a model to investigate metastasis-specific immune surveillance mechanisms are also explored. Finally, we discuss potential implications of EMT for tumor immunogenicity, as well as current immunotherapies and future strategies.
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Affiliation(s)
- Peter J Chockley
- Graduate Program in Immunology, University of Michigan Medical Center, Ann Arbor, MI 48109; and
| | - Venkateshwar G Keshamouni
- Graduate Program in Immunology, University of Michigan Medical Center, Ann Arbor, MI 48109; and Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, MI 48109
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44
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Kowalik A, Kowalewska M, Góźdź S. Current approaches for avoiding the limitations of circulating tumor cells detection methods-implications for diagnosis and treatment of patients with solid tumors. Transl Res 2017; 185:58-84.e15. [PMID: 28506696 DOI: 10.1016/j.trsl.2017.04.002] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 03/24/2017] [Accepted: 04/19/2017] [Indexed: 12/12/2022]
Abstract
Eight million people die of cancer each year and 90% of deaths are caused by systemic disease. Circulating tumor cells (CTCs) contribute to the formation of metastases and thus are the subject of extensive research and an abiding interest to biotechnology and pharmaceutical companies. Recent technological advances have resulted in greatly improved CTC detection, enumeration, expansion, and culture methods. However, despite the fact that nearly 150 years have passed since the first detection and description of CTCs in human blood and enormous technological progress that has taken place in this field, especially within the last decade, few CTC detection methods have been approved for routine clinical use. This reflects the substantial methodological problems related to the nature of these cells, their heterogeneity, and diverse metastatic potential. Here, we provide an overview of CTC phenotypes, including the plasticity of CTCs and the relevance of inflammation and cell fusion phenomena for CTC biology. We also review the literature on CTC detection methodology-its recent improvements, clinical significance, and efforts of its clinical application in cancer patients management. At present, CTC detection remains a challenging diagnostic approach as a result of numerous current methodological limitations. This is especially problematic during the early stages of the disease due to the small numbers of CTCs released into the blood of cancer patients. Nonetheless, the rapid development of novel techniques of CTC detection and enumeration in peripheral blood is expected to expedite their implementation in the clinical setting. It is of utmost importance to understand the biology of CTCs and their distinct populations as a prerequisite for achieving this ultimate goal.
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Affiliation(s)
- Artur Kowalik
- Department of Molecular Diagnostics, Holycross Cancer Center, Kielce, Poland; Department of Surgery and Surgical Nursing with the Scientific Research Laboratory, The Faculty of Health Sciences of the Jan Kochanowski University in Kielce, Kielce, Poland.
| | - Magdalena Kowalewska
- Department of Molecular and Translational Oncology, Maria Sklodowska-Curie Institute - Oncology Center, Warszawa, Poland; Department of Immunology, Biochemistry and Nutrition, Medical University of Warsaw, Warszawa, Poland
| | - Stanisław Góźdź
- Department of Clinical Oncology, Hollycross Cancer Center, Kielce, Poland; Department of Prevention and Cancer Epidemiology, Faculty of Health Sciences of the Jan Kochanowski University in Kielce, Kielce, Poland
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45
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Francart ME, Lambert J, Vanwynsberghe AM, Thompson EW, Bourcy M, Polette M, Gilles C. Epithelial-mesenchymal plasticity and circulating tumor cells: Travel companions to metastases. Dev Dyn 2017; 247:432-450. [PMID: 28407379 DOI: 10.1002/dvdy.24506] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/29/2017] [Accepted: 03/29/2017] [Indexed: 12/11/2022] Open
Abstract
Epithelial-mesenchymal transitions (EMTs) associated with metastatic progression may contribute to the generation of hybrid phenotypes capable of plasticity. This cellular plasticity would provide tumor cells with an increased potential to adapt to the different microenvironments encountered during metastatic spread. Understanding how EMT may functionally equip circulating tumor cells (CTCs) with an enhanced competence to survive in the bloodstream and niche in the colonized organs has thus become a major cancer research axis. We summarize here clinical data with CTC endpoints involving EMT. We then review the work functionally linking EMT programs to CTC biology and deciphering molecular EMT-driven mechanisms supporting their metastatic competence. Developmental Dynamics 247:432-450, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Marie-Emilie Francart
- GIGA-Cancer, Laboratory of Tumor and Development Biology, University of Liège, Liège, Belgium
| | - Justine Lambert
- GIGA-Cancer, Laboratory of Tumor and Development Biology, University of Liège, Liège, Belgium
| | - Aline M Vanwynsberghe
- GIGA-Cancer, Laboratory of Tumor and Development Biology, University of Liège, Liège, Belgium
| | - Erik W Thompson
- Institute of Health and Biomedical Innovation and School of Biomedical Sciences, Queensland University of Technology, and Translational Research Institute Brisbane, and University of Melbourne Department of Surgery, St Vincent's Hospital, Melbourne, Australia
| | - Morgane Bourcy
- GIGA-Cancer, Laboratory of Tumor and Development Biology, University of Liège, Liège, Belgium
| | - Myriam Polette
- Inserm UMR-S 903, University of Reims Champagne-Ardenne, Biopathology Laboratory, CHU of Reims, Reims, France
| | - Christine Gilles
- GIGA-Cancer, Laboratory of Tumor and Development Biology, University of Liège, Liège, Belgium
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46
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Jie XX, Zhang XY, Xu CJ. Epithelial-to-mesenchymal transition, circulating tumor cells and cancer metastasis: Mechanisms and clinical applications. Oncotarget 2017; 8:81558-81571. [PMID: 29113414 PMCID: PMC5655309 DOI: 10.18632/oncotarget.18277] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 05/10/2017] [Indexed: 12/15/2022] Open
Abstract
Epithelial-to-mesenchymal transition (EMT) endows epithelial cells with enhanced motility and invasiveness, allowing them to participate in many physiological and pathological processes. Epithelial-to-mesenchymal transition contributes to the generation of circulating tumor cells (CTCs) in epithelial cancers because it increases tumor cell invasiveness, promotes tumor cell intravasation and ensures tumor cell survival in the peripheral system. Although the contribution of epithelial-to-mesenchymal transition to tumor cell invasiveness has been confirmed, the role epithelial-to-mesenchymal transition plays in metastasis remains debated. As a favorable material for a “liquid biopsy”, circulating tumor cells have been shown to have promising values in the clinical management of tumors. Furthermore, an increasing number of studies have begun to explore the value of CTC-related biomarkers, and some studies have found that the expression of EMT and stemness markers in circulating tumor cells, in addition to CTC detection, can provide more information on tumor diagnosis, treatment, prognosis and research.
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Affiliation(s)
- Xiao-Xiang Jie
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200011, People's Republic of China.,Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai 200032, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, People's Republic of China
| | - Xiao-Yan Zhang
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200011, People's Republic of China.,Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai 200032, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, People's Republic of China
| | - Cong-Jian Xu
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai 200011, People's Republic of China.,Department of Obstetrics and Gynecology of Shanghai Medical School, Fudan University, Shanghai 200032, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, People's Republic of China.,Institute of Biomedical Sciences, Fudan University, Shanghai 200032, People's Republic of China
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47
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Renier C, Pao E, Che J, Liu HE, Lemaire CA, Matsumoto M, Triboulet M, Srivinas S, Jeffrey SS, Rettig M, Kulkarni RP, Di Carlo D, Sollier-Christen E. Label-free isolation of prostate circulating tumor cells using Vortex microfluidic technology. NPJ Precis Oncol 2017; 1:15. [PMID: 29872702 PMCID: PMC5859469 DOI: 10.1038/s41698-017-0015-0] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 02/28/2017] [Accepted: 03/05/2017] [Indexed: 01/21/2023] Open
Abstract
There has been increased interest in utilizing non-invasive "liquid biopsies" to identify biomarkers for cancer prognosis and monitoring, and to isolate genetic material that can predict response to targeted therapies. Circulating tumor cells (CTCs) have emerged as such a biomarker providing both genetic and phenotypic information about tumor evolution, potentially from both primary and metastatic sites. Currently, available CTC isolation approaches, including immunoaffinity and size-based filtration, have focused on high capture efficiency but with lower purity and often long and manual sample preparation, which limits the use of captured CTCs for downstream analyses. Here, we describe the use of the microfluidic Vortex Chip for size-based isolation of CTCs from 22 patients with advanced prostate cancer and, from an enumeration study on 18 of these patients, find that we can capture CTCs with high purity (from 1.74 to 37.59%) and efficiency (from 1.88 to 93.75 CTCs/7.5 mL) in less than 1 h. Interestingly, more atypical large circulating cells were identified in five age-matched healthy donors (46-77 years old; 1.25-2.50 CTCs/7.5 mL) than in five healthy donors <30 years old (21-27 years old; 0.00 CTC/7.5 mL). Using a threshold calculated from the five age-matched healthy donors (3.37 CTCs/mL), we identified CTCs in 80% of the prostate cancer patients. We also found that a fraction of the cells collected (11.5%) did not express epithelial prostate markers (cytokeratin and/or prostate-specific antigen) and that some instead expressed markers of epithelial-mesenchymal transition, i.e., vimentin and N-cadherin. We also show that the purity and DNA yield of isolated cells is amenable to targeted amplification and next-generation sequencing, without whole genome amplification, identifying unique mutations in 10 of 15 samples and 0 of 4 healthy samples.
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Affiliation(s)
- Corinne Renier
- Vortex Biosciences Inc., 1490 O’Brien Drive, Suite E, Menlo Park, CA 94025 USA
| | - Edward Pao
- Department of Bioengineering, University of California, 420 Westwood Plaza, 5121 Engineering V, PO Box 951600, Los Angeles, CA 90095 USA
| | - James Che
- Vortex Biosciences Inc., 1490 O’Brien Drive, Suite E, Menlo Park, CA 94025 USA
| | - Haiyan E. Liu
- Vortex Biosciences Inc., 1490 O’Brien Drive, Suite E, Menlo Park, CA 94025 USA
| | | | - Melissa Matsumoto
- Department of Bioengineering, University of California, 420 Westwood Plaza, 5121 Engineering V, PO Box 951600, Los Angeles, CA 90095 USA
| | - Melanie Triboulet
- Department of Surgery, Stanford University School of Medicine, MSLS Bldg, 1201 Welch Road, Stanford, CA 94305 USA
| | - Sandy Srivinas
- Department of Medicine, Stanford University School of Medicine, 875 Blake Wilbur Drive, Stanford, CA 94305 USA
| | - Stefanie S. Jeffrey
- Department of Surgery, Stanford University School of Medicine, MSLS Bldg, 1201 Welch Road, Stanford, CA 94305 USA
| | - Matthew Rettig
- Departments of Medicine Urology, UCLA Medical Center, Los Angeles, CA 90095 USA
- Department of Medicine, VA Greater Los Angeles Healthcare System-West Los Angeles, Los Angeles, CA 90073 USA
- Jonsson Comprehensive Cancer Center, Los Angeles, CA 90095 USA
| | - Rajan P. Kulkarni
- Department of Bioengineering, University of California, 420 Westwood Plaza, 5121 Engineering V, PO Box 951600, Los Angeles, CA 90095 USA
- Jonsson Comprehensive Cancer Center, Los Angeles, CA 90095 USA
- California NanoSystems Institute, 570 Westwood Plaza, Building 114, Los Angeles, CA 90095 USA
- Division of Dermatology, UCLA Medical Center, 52-121 CHS, Los Angeles, CA 90095 USA
| | - Dino Di Carlo
- Department of Bioengineering, University of California, 420 Westwood Plaza, 5121 Engineering V, PO Box 951600, Los Angeles, CA 90095 USA
- Jonsson Comprehensive Cancer Center, Los Angeles, CA 90095 USA
- California NanoSystems Institute, 570 Westwood Plaza, Building 114, Los Angeles, CA 90095 USA
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48
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Che J, Yu V, Garon EB, Goldman JW, Di Carlo D. Biophysical isolation and identification of circulating tumor cells. LAB ON A CHIP 2017; 17:1452-1461. [PMID: 28352869 PMCID: PMC5507599 DOI: 10.1039/c7lc00038c] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Isolation and enumeration of circulating tumor cells (CTCs) from blood is important for determining patient prognosis and monitoring treatment. Methods based on affinity to cell surface markers have been applied to both purify (via immunoseparation) and identify (via immunofluorescence) CTCs. However, variability of cell biomarker expression associated with tumor heterogeneity and evolution and cross-reactivity of antibody probes have long complicated CTC enrichment and immunostaining. Here, we report a truly label-free high-throughput microfluidic approach to isolate, enumerate, and characterize the biophysical properties of CTCs using an integrated microfluidic device. Vortex-mediated deformability cytometry (VDC) consists of an initial vortex region which enriches large CTCs, followed by release into a downstream hydrodynamic stretching region which deforms the cells. Visualization and quantification of cell deformation with a high-speed camera revealed populations of large (>15 μm diameter) and deformable (aspect ratio >1.2) CTCs from 16 stage IV lung cancer samples, that are clearly distinguished by increased deformability compared to contaminating blood cells and rare large cells isolated from healthy patients. The VDC technology demonstrated a comparable positive detection rate of putative CTCs above healthy baseline (93.8%) with respect to standard immunofluorescence (71.4%). Automation allows full enumeration of CTCs from a 10 mL vial of blood within <1 h after sample acquisition, compared with 4+ hours with standard approaches. Moreover, cells are released into any collection vessel for further downstream analysis. VDC shows potential for accurate CTC enumeration without labels and confirms the unique highly deformable biophysical properties of large CTCs circulating in blood.
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Affiliation(s)
- James Che
- Department of Bioengineering, University of California, Los Angeles, 410 Westwood Plaza, Los Angeles, California 90095, USA.
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49
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Molecular heterogeneity in breast cancer: State of the science and implications for patient care. Semin Cell Dev Biol 2017; 64:65-72. [DOI: 10.1016/j.semcdb.2016.08.025] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 08/24/2016] [Indexed: 12/29/2022]
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50
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Epithelial-mesenchymal plasticity in circulating tumor cells. J Mol Med (Berl) 2016; 95:133-142. [DOI: 10.1007/s00109-016-1500-6] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 11/06/2016] [Accepted: 12/08/2016] [Indexed: 12/18/2022]
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