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Lei Y, Li G, Li J, Gao S, Lei M, Gong G, Li C, Chen Y, Wang C, Wang X. Investigation of the potential role of TGR5 in pancreatic cancer by a comprehensive molecular experiments and the liquid chromatography mass spectrometry (LC-MS) based metabolomics. Discov Oncol 2022; 13:46. [PMID: 35689739 PMCID: PMC9188013 DOI: 10.1007/s12672-022-00504-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 05/19/2022] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Takeda G protein receptor 5 (TGR5) is widely recognized as a potential drug target for the treatment of metabolic diseases. TGR5 is not only a metabolic regulator, but also has a potential role that participating in developing and progressing of gastrointestinal cancer. We aimed to investigate the potential role of TGR5 in pancreatic cancer by utilizing molecular experiments and the liquid chromatography mass spectrometry (LC-MS) based metabolomics. METHODS Herein, we assessed pancreatic cancer proliferation, migration and invasion in response to TGR5 antagonist SBI-115 in vitro experiments. Cell death was examined by using TUNEL assay on agarose-embedded sections. Then we investigated the effects of TGR5 on PANC-1 and BXPC3 cells via transmission electron microscopy (TEM). Moreover, LC-MS-based metabolomics was performed to explore the potential underlying mechanisms of TGR5 in pancreatic cancer. The correlations between TGR5 and the metabolism-related genes were further analysed by GEPIA 2 database. RESULTS We found the proliferation capacities were decreased significantly in PANC-1 and BXPC3 cells after the treatment of SBI-115 for 48 h. The results of TUNEL assay showed that antagonism of TGR5 by SBI-115 had a remarkable effect on inducing cell death. Analysis of TEM demonstrated that SBI-115 treatment could impair the morphology of mitochondria in most PANC-1 and BXPC3 cells. The LC-MS-based analyses revealed that antagonism of TGR5 could alter the metabolic profiles of PANC-1 cells in vitro. Moreover, TGR5 was associated with some metabolism-related genes in pancreatic cancer. CONCLUSION Our data suggests that antagonism of TGR5 may suppress cell proliferation and induce apoptosis in pancreatic cancer cells. TGR5 may affect the metabolism of pancreatic cancer, and TGR5 would be an attractive target for pancreatic cancer treatment.
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Affiliation(s)
- Yangyang Lei
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
- Shanghai Institute of Medical Imaging, Shanghai, 200032, China
| | - Guoping Li
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
- Shanghai Institute of Medical Imaging, Shanghai, 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Jianke Li
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
- Shanghai Institute of Medical Imaging, Shanghai, 200032, China
| | - Shanshan Gao
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
- Shanghai Institute of Medical Imaging, Shanghai, 200032, China
| | - Ming Lei
- Department of Liver Surgery and Transplantation, Liver Cancer Institute and Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Gaoquan Gong
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
- Shanghai Institute of Medical Imaging, Shanghai, 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Changyu Li
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
- Shanghai Institute of Medical Imaging, Shanghai, 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Yi Chen
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
- Shanghai Institute of Medical Imaging, Shanghai, 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Chenggang Wang
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
- Shanghai Institute of Medical Imaging, Shanghai, 200032, China.
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
| | - Xiaolin Wang
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
- Shanghai Institute of Medical Imaging, Shanghai, 200032, China.
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
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Li X, Dean DC, Ferreira A, Nelson SD, Hornicek FJ, Yu S, Duan Z. Establishment and Characterization of a Novel Dedifferentiated Chondrosarcoma Cell Line DDCS2. Cancer Control 2021; 28:10732748211045274. [PMID: 34767468 PMCID: PMC8645311 DOI: 10.1177/10732748211045274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background The dedifferentiated variant of chondrosarcoma is highly aggressive and carries an especially grim prognosis. While chemotherapeutics has failed to benefit patients with dedifferentiated chondrosarcoma significantly, preclinical chemosensitivity studies have been limited by a scarcity of available cell lines. There is, therefore, an urgent need to expand the pool of available cell lines. Methods We report the establishment of a novel dedifferentiated chondrosarcoma cell line DDCS2, which we isolated from the primary tumor specimen of a 60-year-old male patient. We characterized its short tandem repeat (STR) DNA profile, growth potential, antigenic markers, chemosensitivity, and oncogenic spheroid and colony-forming capacity. Results DDCS2 showed a spindle to polygonal shape and an approximate 60-hour doubling time. STR DNA profiling revealed a unique genomic identity not matching any existing cancer cell lines within the ATCC, JCRB, or DSMZ databases. There was no detectable contamination with another cell type. Western blot and immunofluorescence assays were consistent with a mesenchymal origin, and our MTT assay revealed relative resistance to conventional chemotherapeutics, which is typical of a dedifferentiated chondrosarcoma. Under ex vivo three-dimensional (3D) culture conditions, the DDCS2 cells produced spheroid patterns similar to the well-established CS-1 and SW1353 chondrosarcoma cell lines. Conclusion Our findings confirm DDCS2 is a novel model for dedifferentiated chondrosarcoma and therefore adds to the limited pool of current cell lines urgently needed to investigate the chemoresistance within this deadly cancer.
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Affiliation(s)
- Xiaoyang Li
- Department of Orthopedics, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, 71041Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China.,Sarcoma Biology Laboratory, Department of Orthopaedics, Sylvester Comprehensive Cancer Center, and the University of Miami Miller School of Medicine, Miami, FL 33136
| | - Dylan C Dean
- Sarcoma Biology Laboratory, Department of Orthopaedics, Sylvester Comprehensive Cancer Center, and the University of Miami Miller School of Medicine, Miami, FL 33136
| | - Al Ferreira
- Sarcoma Biology Laboratory, Department of Orthopaedics, Sylvester Comprehensive Cancer Center, and the University of Miami Miller School of Medicine, Miami, FL 33136
| | - Scott D Nelson
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA 90095
| | - Francis J Hornicek
- Sarcoma Biology Laboratory, Department of Orthopaedics, Sylvester Comprehensive Cancer Center, and the University of Miami Miller School of Medicine, Miami, FL 33136
| | - Shengji Yu
- Department of Orthopedics, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, 71041Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Zhenfeng Duan
- Sarcoma Biology Laboratory, Department of Orthopaedics, Sylvester Comprehensive Cancer Center, and the University of Miami Miller School of Medicine, Miami, FL 33136
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Abstract
OBJECTIVE The incidence of pancreatic adenocarcinoma (PA) approximates its prevalence, as the malignancy is almost consistently fatal within a year. Although the currently available adjuvant therapy seems to provide survival benefit, it is only moderate, and the standard regimen has not yet been established. Therefore, more biological resources to investigate the PA are needed. METHODS Here, we established and characterized 10 human pancreatic cancer cell lines derived from primary tumor mass. Whole exome sequencing technique was used to identify driver mutations and aberrant pathways in each cell line. RESULTS Five anticancer drugs were treated to find half maximal effective concentration (EC50), and the response was analyzed in reference to mutational status. Frame shift mutations in ARID1A gene and HER2 amplification were mutually related to better response to the anticancer drugs. In contrast, frame shift mutation in MSH6 gene was associated with resistance to anticancer drugs. CONCLUSIONS In summary, we established 10 pancreatic cancer cell lines and integrated various molecular aberrations and features of pancreatic cancer cells. Our biological resources are expected to contribute to facilitating research on PA.
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Establishment and genomic characterization of primary salivary duct carcinoma cell line. Oral Oncol 2017; 69:108-114. [PMID: 28559013 DOI: 10.1016/j.oraloncology.2017.04.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 04/10/2017] [Indexed: 12/11/2022]
Abstract
OBJECTIVES To develop and characterize in vitro salivary duct carcinoma as a surrogate for functional studies. MATERIALS AND METHODS Cells were dispersed from tumor tissue fragments under sterile conditions in RPMI media. Disassociated cells were cultivated, immortalized with hTERT and propagated for more than 100 passages. Morphologic, linage, cytogenetic and genomic analyses were performed on different passages of cell line and primary tumor. Soft agar growth was performed. RESULTS Analysis of cytomorphologic features, growth characteristics and lineage specific markers expression confirmed the epithelial derivation and the neoplastic nature of the cell line. DNA STRs analysis showed identical match of both cell line and primary tumor. Cultivated cells expressed Androgen Receptor (AR), PTEN, and EFGR proteins and the AR-V7 isoform transcript. Comparative exome-sequencing identified common mutated genes in both cell line and primary tumor. In-vitro colony formation of late passages is established. CONCLUSION We report the development of the first human salivary duct carcinoma cell line (MDA-SDC-04) that retains critical biological and genomic features of the donor tumor.
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Rezaei M, Hosseini A, Nikeghbalian S, Ghaderi A. Establishment and characterization of a new human acinar cell carcinoma cell line, Faraz-ICR, from pancreas. Pancreatology 2017; 17:303-309. [PMID: 28215484 DOI: 10.1016/j.pan.2017.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 01/25/2017] [Accepted: 02/06/2017] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Basic research in the field of acinar cell carcinoma (ACC) as a rare neoplasm of the pancreas is dependent on the availability of pragmatic model such as new pancreatic cancer cell lines. Thus, establishment and characterization of new pancreatic cancer cell lines from ACC origin are deemed important. METHODS Faraz-ICR cell line was derived from a 58-years old woman with pancreatic acinar cell carcinoma by the collagenase digestion protocol. We characterized the cell line by examining its morphology and cytostructural and functional profile. RESULTS Faraz-ICR has a doubling time of 35 hours and grows in soft agar with a colony-forming efficiency of 25%. The cell had nearly normal pattern of chromosomes in karyotype analysis and Comparative Genomic Hybridization (CGH) array analysis. Evaluation of cells by flowcytometry showed that Faraz-ICR is negative for EpCAM and mesenchymal markers in different passages, and has epithelial nature. Immunofluorescence staining revealed that cells were strongly positive for vimentin, desmin, ezrin, S100, nestin and they were negative for pan-cytokeratins, chromogranin and alpha smooth muscle actin. CONCLUSIONS We were able to establish a new pancreatic carcinoma cell line with partial aspects of Epithelial-mesenchymal transition and aggressiveness. This cell line might be suitable for studying various anticancer drugs and protein profile aiming to see any possible tumor associated marker for ACC.
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Affiliation(s)
- Marzieh Rezaei
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahmad Hosseini
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Saman Nikeghbalian
- Department of Surgery, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abbas Ghaderi
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
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Pham K, Delitto D, Knowlton AE, Hartlage ER, Madhavan R, Gonzalo DH, Thomas RM, Behrns KE, George TJ, Hughes SJ, Wallet SM, Liu C, Trevino JG. Isolation of Pancreatic Cancer Cells from a Patient-Derived Xenograft Model Allows for Practical Expansion and Preserved Heterogeneity in Culture. THE AMERICAN JOURNAL OF PATHOLOGY 2016; 186:1537-46. [PMID: 27102771 DOI: 10.1016/j.ajpath.2016.02.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 02/05/2016] [Accepted: 02/16/2016] [Indexed: 01/18/2023]
Abstract
Commercially available, highly passaged pancreatic cancer (PC) cell lines are of limited translational value. Attempts to overcome this limitation have primarily consisted of cancer cell isolation and culture directly from human PC specimens. However, these techniques are associated with exceedingly low success rates. Here, we demonstrate a highly reproducible culture of primary PC cell lines (PPCLs) from patient-derived xenografts, which preserve, in part, the intratumoral heterogeneity known to exist in PC. PPCL expansion from patient-derived xenografts was successful in 100% of attempts (5 of 5). Phenotypic analysis was evaluated with flow cytometry, immunofluorescence microscopy, and short tandem repeat profiling. Importantly, tumorigenicity of PPCLs expanded from patient-derived xenografts was assessed by subcutaneous injection into nonobese diabeteic.Cg-Prkdc(scid)Il2rg(tm1Wjl)/SzJ mice. Morphologically, subcutaneous injection of all PPCLs into mice yielded tumors with similar characteristics to the parent xenograft. PPCLs uniformly expressed class I human leukocyte antigen, epithelial cell adhesion molecule, and cytokeratin-19. Heterogeneity within each PPCL persisted in culture for the frequency of cells expressing the cancer stem cell markers CD44, CD133, and c-Met and the immunologic markers human leukocyte antigen class II and programmed death ligand 1. This work therefore presents a reliable method for the rapid expansion of primary human PC cells and, thereby, provides a platform for translational investigation and, importantly, potential personalized therapeutic approaches.
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Affiliation(s)
- Kien Pham
- Department of Pathology, Immunology, Laboratory Medicine, Colleges of Medicine, Dentistry, and Public Health and Health Professions, University of Florida Health Science Center, Gainesville, Florida
| | - Daniel Delitto
- Department of Surgery, Colleges of Medicine, Dentistry, and Public Health and Health Professions, University of Florida Health Science Center, Gainesville, Florida
| | - Andrea E Knowlton
- Department of Oral Biology, Colleges of Medicine, Dentistry, and Public Health and Health Professions, University of Florida Health Science Center, Gainesville, Florida
| | - Emily R Hartlage
- Department of Oral Biology, Colleges of Medicine, Dentistry, and Public Health and Health Professions, University of Florida Health Science Center, Gainesville, Florida
| | - Ricky Madhavan
- Department of Pathology, Immunology, Laboratory Medicine, Colleges of Medicine, Dentistry, and Public Health and Health Professions, University of Florida Health Science Center, Gainesville, Florida
| | - David H Gonzalo
- Department of Pathology, Immunology, Laboratory Medicine, Colleges of Medicine, Dentistry, and Public Health and Health Professions, University of Florida Health Science Center, Gainesville, Florida
| | - Ryan M Thomas
- Department of Surgery, Colleges of Medicine, Dentistry, and Public Health and Health Professions, University of Florida Health Science Center, Gainesville, Florida
| | - Kevin E Behrns
- Department of Surgery, Colleges of Medicine, Dentistry, and Public Health and Health Professions, University of Florida Health Science Center, Gainesville, Florida
| | - Thomas J George
- Department of Internal Medicine, Colleges of Medicine, Dentistry, and Public Health and Health Professions, University of Florida Health Science Center, Gainesville, Florida
| | - Steven J Hughes
- Department of Surgery, Colleges of Medicine, Dentistry, and Public Health and Health Professions, University of Florida Health Science Center, Gainesville, Florida
| | - Shannon M Wallet
- Department of Internal Medicine, Colleges of Medicine, Dentistry, and Public Health and Health Professions, University of Florida Health Science Center, Gainesville, Florida
| | - Chen Liu
- Department of Pathology, Immunology, Laboratory Medicine, Colleges of Medicine, Dentistry, and Public Health and Health Professions, University of Florida Health Science Center, Gainesville, Florida.
| | - Jose G Trevino
- Department of Surgery, Colleges of Medicine, Dentistry, and Public Health and Health Professions, University of Florida Health Science Center, Gainesville, Florida.
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Montelatici E, Baluce B, Ragni E, Lavazza C, Parazzi V, Mazzola R, Cantarella G, Brambilla M, Giordano R, Lazzari L. Defining the identity of human adipose-derived mesenchymal stem cells. Biochem Cell Biol 2014; 93:74-82. [PMID: 25472894 DOI: 10.1139/bcb-2014-0094] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Adipose-derived mesenchymal stem cells (ADMSCs) are an ideal population for regenerative medical application. Both the isolation procedure and the culturing conditions are crucial steps, since low yield can limit further cell therapies, especially when minimal adipose tissue harvests are available for cell expansion. To date, a standardized procedure encompassing both isolation sites and expansion methods is missing, thus making the choice of the most appropriate conditions for the preparation of ADMSCs controversial, especially in view of the different applications needed. In this study, we compared the effects of three different commercial media (DMEM, aMEM, and EGM2), routinely used for ADMSCs expansion, and two supplements, FBS and human platelet lysate, recently proven to be an effective alternative to prevent xenogeneic antibody transfer and immune alloresponse in the host. Notably, all the conditions resulted in being safe for ADMSCs isolation and expansion with platelet lysate supplementation giving the highest isolation and proliferation rates, together with a commitment for osteogenic lineage. Then, we proved that the high ADMSC hematopoietic supportive potential is performed through a constant and abundant secretion of both GCSF and SCF. In conclusion, this study further expands the knowledge on ADMSCs, defining their identity definition and offers potential options for in vitro protocols for clinical production, especially related to HSC expansion without use of exogenous cytokines or genetic modifications.
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Affiliation(s)
- Elisa Montelatici
- a Cell Factory, Unit of Cell Therapy and Cryobiology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via F. Sforza 35, 20122 Milano, Italy
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8
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Liu X, Nielsen GP, Rosenberg AE, Waterman PR, Yang W, Choy E, Sassi S, Yang S, Harmon DC, Yang C, Schwab JH, Kobayashi E, Mankin HJ, Xavier R, Weissleder R, Duan Z, Hornicek FJ. Establishment and characterization of a novel chordoma cell line: CH22. J Orthop Res 2012; 30:1666-73. [PMID: 22504929 DOI: 10.1002/jor.22113] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Accepted: 03/08/2012] [Indexed: 02/04/2023]
Abstract
Chordoma is a rare primary malignant bone tumor and there exist only a few established human chordoma cell lines. The scarcity of robust chordoma cell lines has limited the ability to study this tumor. In this report, we describe the establishment of a novel chordoma cell line and characterize its in vitro and in vivo behaviors. The tumor tissue was isolated from a patient with recurrent chordoma of the sacrum. After 6 months in culture, the chordoma cell line, referred here as CH22, was established. Microscopic analysis of two-dimensional culture confirmed that the CH22 cells exhibited a typical vacuolated cytoplasm similar to the well-established chordoma cell line U-CH1. Electron microscopy showed cohesive cells with numerous surface filopodia, pockets of glycogen and aggregates of intermediate tonofilaments in cytoplasm. Three-dimensional culture revealed that the CH22 cells could grow and form clusters by day 8. The MTT assays demonstrated that, compared with sensitive osteosarcoma cell lines, CH22 cells were relatively resistant to conventional chemotherapeutic drugs. Western blotting and immunofluorescence analysis confirmed that the CH22 cells expressed brachyury, vimentin, and cytokeratin. Finally, histological analysis of CH22 xenograft tumor tissues demonstrated the appearance of physaliphorous cells and positive staining of brachyury, cytokeratin, and S100. By CT and MRI, imaging xenografts showed the typical appearances seen in human chordomas. These findings suggest that the established novel human chordoma cell line CH22 and its tumorigenecity in SCID nude mice may serve as an important model for studying chordoma cell biology and the development of new therapeutic modalities.
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Affiliation(s)
- Xianzhe Liu
- Department of Orthopaedic Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
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Goldberg L, Israeli R, Kloog Y. FTS and 2-DG induce pancreatic cancer cell death and tumor shrinkage in mice. Cell Death Dis 2012; 3:e284. [PMID: 22419113 PMCID: PMC3317504 DOI: 10.1038/cddis.2012.24] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The Ras inhibitor S-trans-trans farnesylthiosalicylic acid (FTS)
inhibits active Ras, which controls cell proliferation, differentiation,
survival, and metabolism. FTS also inhibits HIF1α expression in
cancer cells, leading to an energy crisis. The synthetic glucose analog
2-deoxy-D-glucose (2-DG), which inhibits glycolysis, is selectively directed to
tumor cells that exhibit increased glucose consumption. The 2-DG enters tumor
cells, where it competes with glucose for glycolytic enzymes. In cancer models,
as well as in human phase 1 trials, 2-DG inhibits tumor growth without toxicity.
We postulated that under normoxic conditions, tumor cells treated with FTS would
be more sensitive than normal cells to 2-DG. We show here that combined
treatment with FTS and 2-DG inhibited cancer cell proliferation additively, yet
induced apoptotic cell death synergistically both in vitro and in
vivo. The induced apoptosis was inferred from QVD-OPH inhibition, an
increase in cleaved caspase 3, and loss of survivin. FTS and 2-DG when combined,
but not separately, also induced an increase in fibrosis of the tumor tissue,
chronic inflammation, and tumor shrinkage. Overall, these results suggest a
possible new treatment of pancreatic tumors by the combined administration of
FTS and 2-DG, which together induce pancreatic tumor cell death and tumor
shrinkage under non-toxic conditions.
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Affiliation(s)
- L Goldberg
- Department of Neurobiology, George S Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
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Colombo F, Baldan F, Mazzucchelli S, Martin-Padura I, Marighetti P, Cattaneo A, Foglieni B, Spreafico M, Guerneri S, Baccarin M, Bertolini F, Rossi G, Mazzaferro V, Cadamuro M, Maggioni M, Agnelli L, Rebulla P, Prati D, Porretti L. Evidence of distinct tumour-propagating cell populations with different properties in primary human hepatocellular carcinoma. PLoS One 2011; 6:e21369. [PMID: 21731718 PMCID: PMC3121782 DOI: 10.1371/journal.pone.0021369] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Accepted: 05/27/2011] [Indexed: 12/14/2022] Open
Abstract
Background and Aims Increasing evidence that a number of malignancies are characterised by tumour cell heterogeneity has recently been published, but there is still a lack of data concerning liver cancers. The aim of this study was to investigate and characterise tumour-propagating cell (TPC) compartments within human hepatocellular carcinoma (HCC). Methods After long-term culture, we identified three morphologically different tumour cell populations in a single HCC specimen, and extensively characterised them by means of flow cytometry, fluorescence microscopy, karyotyping and microarray analyses, single cell cloning, and xenotransplantation in NOD/SCID/IL2Rγ−/− mice. Results The primary cell populations (hcc-1, -2 and -3) and two clones generated by means of limiting dilutions from hcc-1 (clone-1/7 and -1/8) differently expressed a number of tumour-associated stem cell markers, including EpCAM, CD49f, CD44, CD133, CD56, Thy-1, ALDH and CK19, and also showed different doubling times, drug resistance and tumorigenic potential. Moreover, we found that ALDH expression, in combination with CD44 or Thy-1 negativity or CD56 positivity identified subpopulations with a higher clonogenic potential within hcc-1, hcc-2 and hcc-3 primary cell populations, respectively. Karyotyping revealed the clonal evolution of the cell populations and clones within the primary tumour. Importantly, the primary tumour cell population with the greatest tumorigenic potential and drug resistance showed more chromosomal alterations than the others and contained clones with epithelial and mesenchymal features. Conclusions Individual HCCs can harbor different self-renewing tumorigenic cell types expressing a variety of morphological and phenotypical markers, karyotypic evolution and different gene expression profiles. This suggests that the models of hepatic carcinogenesis should take into account TPC heterogeneity due to intratumour clonal evolution.
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Affiliation(s)
- Federico Colombo
- Experimental Hepatology Laboratory, Centre of Transfusion Medicine, Cellular Therapy and Cryobiology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
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