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Zhou BW, Wu QQ, Mauki DH, Wang X, Zhang SR, Yin TT, Chen FL, Li C, Liu YH, Wang GD, Zhang YP. Germline gene fusions across species reveal the chromosomal instability regions and cancer susceptibility. iScience 2023; 26:108431. [PMID: 38205119 PMCID: PMC10777377 DOI: 10.1016/j.isci.2023.108431] [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] [Received: 02/01/2023] [Revised: 06/24/2023] [Accepted: 11/08/2023] [Indexed: 01/12/2024] Open
Abstract
The canine transmissible venereal tumor (CTVT) is a clonal cell-mediated cancer with a long evolutionary history and extensive karyotype rearrangements in its genome. However, little is known about its genetic similarity to human tumors. Here, using multi-omics data we identified 11 germline gene fusions (GGFs) in CTVT, which showed higher genetic susceptibility than others. Additionally, we illustrate a mechanism of a complex gene fusion of three gene segments (HSD17B4-DMXL1-TNFAIP8) that we refer to "greedy fusion". Our findings also provided evidence that expressions of GGFs are downregulated during the tumor regressive phase, which is associated with DNA methylation level. This study presents a comprehensive landscape of gene fusions (GFs) in CTVT, which offers a valuable genetic resource for exploring potential genetic mechanisms underlying the development of cancers in both dogs and humans.
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Affiliation(s)
- Bo-Wen Zhou
- State Key Laboratory of Genetic Resources and Evolution & Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
- Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, Yunnan 650204, China
| | - Qing-Qin Wu
- School of Ecology and Environmental Sciences, Yunnan University, Kunming, Yunnan 650500, China
| | - David H. Mauki
- Institute of Neurological Disease, National-Local Joint Engineering Research Center of Translational Medicine, State Key Lab of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xuan Wang
- State Key Laboratory of Genetic Resources and Evolution & Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
- Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, Yunnan 650204, China
| | - Shu-Run Zhang
- State Key Laboratory of Genetic Resources and Evolution & Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Ting-Ting Yin
- State Key Laboratory of Genetic Resources and Evolution & Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Fang-Liang Chen
- Kunming Police Dog Base of the Ministry of Public Security, Kunming, Yunnan 650204, China
| | - Chao Li
- State Key Laboratory for Conservation and Utilization of Bio-Resource, Yunnan University, Kunming, Yunnan 650500, China
| | - Yan-Hu Liu
- State Key Laboratory of Genetic Resources and Evolution & Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Guo-Dong Wang
- State Key Laboratory of Genetic Resources and Evolution & Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
- Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, Yunnan 650204, China
| | - Ya-Ping Zhang
- State Key Laboratory of Genetic Resources and Evolution & Yunnan Laboratory of Molecular Biology of Domestic Animals, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
- Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, Yunnan 650204, China
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Grandi F, Miot HA, Rocha RM, Gomes CMS, Queiroz‐Hazarbassanov N, Montoya‐Florez LM, Cogliati B, Rocha NS. Immunophenotypic and molecular profile of cancer stem‐cell markers in ex vivo canine transmissible venereal tumour (CTVT). Vet Med Sci 2022; 8:2297-2306. [DOI: 10.1002/vms3.828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Fabrizio Grandi
- Department of Pathology, Botucatu Medical School Universidade Estadual Paulista, UNESP Botucatu São Paulo Brazil
| | - Hélio Amante Miot
- Department of Dermatology and Radiotherapy Botucatu Medical School Universidade Estadual Paulista, UNESP Botucatu São Paulo Brazil
| | | | | | | | | | - Bruno Cogliati
- Department of Pathology School of Veterinary Medicine and Animal Science University of Sao Paulo São Paulo Brazil
| | - Noeme Sousa Rocha
- Department of Pathology, Botucatu Medical School Universidade Estadual Paulista, UNESP Botucatu São Paulo Brazil
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3
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do Prado Duzanski A, Flórez LMM, Fêo HB, Romagnoli GG, Kaneno R, Rocha NS. Cell-mediated immunity and expression of MHC class I and class II molecules in dogs naturally infected by canine transmissible venereal tumor: Is there complete spontaneous regression outside the experimental CTVT? Res Vet Sci 2022; 145:193-204. [DOI: 10.1016/j.rvsc.2022.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 12/21/2021] [Accepted: 02/18/2022] [Indexed: 10/19/2022]
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Capp JP, DeGregori J, Nedelcu AM, Dujon AM, Boutry J, Pujol P, Alix-Panabières C, Hamede R, Roche B, Ujvari B, Marusyk A, Gatenby R, Thomas F. Group phenotypic composition in cancer. eLife 2021; 10:63518. [PMID: 33784238 PMCID: PMC8009660 DOI: 10.7554/elife.63518] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 03/09/2021] [Indexed: 12/13/2022] Open
Abstract
Although individual cancer cells are generally considered the Darwinian units of selection in malignant populations, they frequently act as members of groups where fitness of the group cannot be reduced to the average fitness of individual group members. A growing body of studies reveals limitations of reductionist approaches to explaining biological and clinical observations. For example, induction of angiogenesis, inhibition of the immune system, and niche engineering through environmental acidification and/or remodeling of extracellular matrix cannot be achieved by single tumor cells and require collective actions of groups of cells. Success or failure of such group activities depends on the phenotypic makeup of the individual group members. Conversely, these group activities affect the fitness of individual members of the group, ultimately affecting the composition of the group. This phenomenon, where phenotypic makeup of individual group members impacts the fitness of both members and groups, has been captured in the term 'group phenotypic composition' (GPC). We provide examples where considerations of GPC could help in understanding the evolution and clinical progression of cancers and argue that use of the GPC framework can facilitate new insights into cancer biology and assist with the development of new therapeutic strategies.
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Affiliation(s)
- Jean-Pascal Capp
- Toulouse Biotechnology Institute, University of Toulouse, INSA, CNRS, INRAE, Toulouse, France
| | - James DeGregori
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, United States
| | - Aurora M Nedelcu
- Department of Biology, University of New Brunswick, Fredericton, New Brunswick, Canada
| | - Antoine M Dujon
- CREEC/CANECEV, MIVEGEC (CREES), University of Montpellier, CNRS, IRD, Montpellier, France.,Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Geelong, Australia
| | - Justine Boutry
- CREEC/CANECEV, MIVEGEC (CREES), University of Montpellier, CNRS, IRD, Montpellier, France
| | - Pascal Pujol
- CREEC/CANECEV, MIVEGEC (CREES), University of Montpellier, CNRS, IRD, Montpellier, France
| | - Catherine Alix-Panabières
- CREEC/CANECEV, MIVEGEC (CREES), University of Montpellier, CNRS, IRD, Montpellier, France.,Laboratory of Rare Human Circulating Cells (LCCRH), University Medical Centre of Montpellier, Montpellier, France
| | - Rodrigo Hamede
- School of Natural Sciences, University of Tasmania, Hobart, Australia
| | - Benjamin Roche
- CREEC/CANECEV, MIVEGEC (CREES), University of Montpellier, CNRS, IRD, Montpellier, France
| | - Beata Ujvari
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Geelong, Australia.,School of Natural Sciences, University of Tasmania, Hobart, Australia
| | - Andriy Marusyk
- Department of Cancer Physiology, H Lee Moffitt Cancer Center and Research Institute, Tampa, United States
| | - Robert Gatenby
- Department of Cancer Physiology, H Lee Moffitt Cancer Center and Research Institute, Tampa, United States
| | - Frédéric Thomas
- CREEC/CANECEV, MIVEGEC (CREES), University of Montpellier, CNRS, IRD, Montpellier, France
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Evaluation of a Canine Transmissible Venereal Tumour Cell Line with Tumour Immunity Capacity but Without Tumorigenic Property. J Vet Res 2019; 63:225-233. [PMID: 31276062 PMCID: PMC6598177 DOI: 10.2478/jvetres-2019-0024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 03/19/2019] [Indexed: 11/20/2022] Open
Abstract
Introduction Canine transmissible venereal tumour (CTVT) is a sexually transmitted tumour affecting dogs worldwide, imposing a financial burden on dog owners. A stable culture cell line in continuous passages for >18 months has only been achieved once. The present study investigated a stable CTVT cell line isolated from a bitch and its potential as a vaccine. Material and Methods A biopsy from a 2-year-old mongrel bitch with CTVT was obtained for histopathological confirmation and isolation of tumour cells. The isolated cells were cultured to passage 55 and characterised by flow cytometry, with karyotyping by GTG-banding and by PCR detection of myc S-2 and LINE AS1. The isolated CTVT cell line was also used as a preventive vaccine in a canine model. Results Histopathological analysis of the isolated tumour cells revealed typical CTVT characteristics. Constant proliferation and stable morphological characteristics were observed during culture. Phenotypic analysis determined the expression of HLA-DR+, CD5.1+, CD14+, CD45+, CD83+, CD163+, and Ly-6G-Ly-6C+. GTG-banding revealed a mean of 57 chromosomes in the karyotype with several complex chromosomal rearrangements. LINE-c-myc insertion in the isolated CTVT cell line at 550 bp was not detected. However, a 340-bp band was amplified. Isolated CTVT cell line inoculation at a concentration of 1×108 did not induce tumour growth in bitches, nor did a challenge with primary CTVT cells. Conclusion The present study successfully identified and isolated a stable CTVT cell line that may be useful in CTVT prevention.
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Ramos-Zayas Y, Franco-Molina MA, Hernádez-Granados AJ, Zárate-Triviño DG, Coronado-Cerda EE, Mendoza-Gamboa E, Zapata-Benavides P, Ramírez-Romero R, Santana-Krymskaya SE, Tamez-Guerra R, Rodríguez-Padilla C. Immunotherapy for the treatment of canine transmissible venereal tumor based in dendritic cells pulsed with tumoral exosomes. Immunopharmacol Immunotoxicol 2018; 41:48-54. [PMID: 30334465 DOI: 10.1080/08923973.2018.1533969] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Context: Exosomes secreted by tumor cells are a good source of cellular components that stimulate the immune response, such as alarmins (mRNA, tetraspanins (CD9, CD63, CD81), heat-shock proteins, major histocompatibility complex class I molecules) and tumor-associated antigens. These properties permit to pulsed dendritic cells in the immunotherapy for many cancers types. The aim of this study was to demonstrate the use of exosomes derived from canine transmissible venereal tumor (CTVT) as an antigen to pulsed dendritic cells and its administration in dogs with CTVT as treatment against this disease. Material and methods: From primary culture of CTVT cells the exosomes were isolated and characterized by scanning electron microscopy assay, dot blot and protein quantification. The monocytes of each patient were differentiated to dendritic cells (DC) and pulsed with CTVT exosomes (CTVTE). Phagocytosis, tumor size, populations of lymphocytes and IFN-c levels were evaluated. Results: The CTVTE showed a size around 90 nm. CD81, CD63, CD9 and Hsp70 were expressed. Monocytes showed an expression of 85.71% for CD14+, 12.3% for CD80+, 0.1% for CD83+ and 0.8% for DLA-II. In DC 5.1% for CD14+, 86.7% for CD80+, 90.1% for CD83+ and 92.6% for DLA-II and a phagocytosis of 63% was obtained by FITC Dextran test. No side effects were observed in the experimental groups with our therapy. Tumor regression was of 100% at the seventh week, as well as an increase in the level of IFN-γ (142 pg/ml), and CD4+ (28%) and CD8+ (34%) cell percentage. Discusion and conclusion: These results have shown that DC pulsed with tumor exosomes induce regression of the TVT in dogs.
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Affiliation(s)
- Yareellys Ramos-Zayas
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (UANL) , San Nicolás de los Garza , NL , México
| | - Moisés Armides Franco-Molina
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (UANL) , San Nicolás de los Garza , NL , México
| | - Alex Jesús Hernádez-Granados
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (UANL) , San Nicolás de los Garza , NL , México
| | - Diana Ginette Zárate-Triviño
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (UANL) , San Nicolás de los Garza , NL , México
| | - Erika Evangelina Coronado-Cerda
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (UANL) , San Nicolás de los Garza , NL , México
| | - Edgar Mendoza-Gamboa
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (UANL) , San Nicolás de los Garza , NL , México
| | - Pablo Zapata-Benavides
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (UANL) , San Nicolás de los Garza , NL , México
| | - Rafael Ramírez-Romero
- b Veterinary and Zootechnics Faculty , Autonomous University of Nuevo León (UANL) , Cd Gral Escobedo , NL , México
| | - Silvia Elena Santana-Krymskaya
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (UANL) , San Nicolás de los Garza , NL , México
| | - Reyes Tamez-Guerra
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (UANL) , San Nicolás de los Garza , NL , México
| | - Cristina Rodríguez-Padilla
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (UANL) , San Nicolás de los Garza , NL , México
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7
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Franco-Molina MA, Ramos-Zayas Y, Coronado-Cerda EE, Mendoza-Gamboa E, Zapata-Benavides P, Santana-Krymskaya SE, Tamez-Guerra R, Rodríguez-Padilla C. Autologous canine immunotherapy: short-time generated dendritic cells loaded with canine transmissible venereal tumor-whole lysate. Immunopharmacol Immunotoxicol 2018; 40:437-443. [PMID: 30507311 DOI: 10.1080/08923973.2018.1523928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE The aim of the present study was to evaluate the therapeutic potential of autologous DCs loaded with whole tumor cell lysate of CTVT generated under a simplified and rapid procedure in vitro production process, in a vulvar submucosal model of CTVT in dogs. MATERIALS AND METHODS We generated a model of intravulvar CTVT in dogs. A CTVT lysate antigen was prepared according to the method of 1-butanol and after administered with complete Freund's adjuvant via subcutaneous in female healthy dogs and challenge with CTVT cells to corroborate the immunogenicity. Short-time generated dendritic cell pulsed with CTVT whole-lysate was performed, and analyzed by FITC-dextran uptake assay and characterized using anti-canine monoclonal antibodies CD14, CD80, CD83, and DLAII by flow cytometry. Dendritic cell therapy was administered in a frequency of three times every 2 weeks when the CTVT had 4 months of growth and 89 ± 5 cm diameter. The CD3+, CD4+ and CD8+ lymphocytes were determined by flow cytometry, and IFN-γ by ELISA assay. RESULTS AND DISCUSSION The administration of CTVT whole-lysate resulted in tumor prevention. The short-time generated dendritic cell pulsed with CTVT whole-lysate administration resulted in an efficient reduction and elimination of CTVT, probably due to the increase in lymphocyte populations (CD3+, CD4+, and CD8+), IFN-γ production and tumor infiltrating lymphocytes. CONCLUSION In conclusion, this study demonstrates the efficacy of immunotherapy based in short-time generated dendritic cell pulsed with CTVT whole-lysate for the treatment of CTVT, and offer veterinary oncologists new alternative therapies to treat this and another malignancy.
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Affiliation(s)
- Moisés Armides Franco-Molina
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (AUNL) , San Nicolás de los Garza , México
| | - Yareellys Ramos-Zayas
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (AUNL) , San Nicolás de los Garza , México
| | - Erika Evangelina Coronado-Cerda
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (AUNL) , San Nicolás de los Garza , México
| | - Edgar Mendoza-Gamboa
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (AUNL) , San Nicolás de los Garza , México
| | - Pablo Zapata-Benavides
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (AUNL) , San Nicolás de los Garza , México
| | - Silvia Elena Santana-Krymskaya
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (AUNL) , San Nicolás de los Garza , México
| | - Reyes Tamez-Guerra
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (AUNL) , San Nicolás de los Garza , México
| | - Cristina Rodríguez-Padilla
- a Virology and Immunology Laboratory, Biological Science Faculty , Autonomous University of Nuevo León (AUNL) , San Nicolás de los Garza , México
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Ujvari B, Papenfuss AT, Belov K. Transmissible cancers in an evolutionary context. Bioessays 2017; 38 Suppl 1:S14-23. [PMID: 27417118 DOI: 10.1002/bies.201670904] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 04/09/2015] [Accepted: 04/23/2015] [Indexed: 12/13/2022]
Abstract
Cancer is an evolutionary and ecological process in which complex interactions between tumour cells and their environment share many similarities with organismal evolution. Tumour cells with highest adaptive potential have a selective advantage over less fit cells. Naturally occurring transmissible cancers provide an ideal model system for investigating the evolutionary arms race between cancer cells and their surrounding micro-environment and macro-environment. However, the evolutionary landscapes in which contagious cancers reside have not been subjected to comprehensive investigation. Here, we provide a multifocal analysis of transmissible tumour progression and discuss the selection forces that shape it. We demonstrate that transmissible cancers adapt to both their micro-environment and macro-environment, and evolutionary theories applied to organisms are also relevant to these unique diseases. The three naturally occurring transmissible cancers, canine transmissible venereal tumour (CTVT) and Tasmanian devil facial tumour disease (DFTD) and the recently discovered clam leukaemia, exhibit different evolutionary phases: (i) CTVT, the oldest naturally occurring cell line is remarkably stable; (ii) DFTD exhibits the signs of stepwise cancer evolution; and (iii) clam leukaemia shows genetic instability. While all three contagious cancers carry the signature of ongoing and fairly recent adaptations to selective forces, CTVT appears to have reached an evolutionary stalemate with its host, while DFTD and the clam leukaemia appear to be still at a more dynamic phase of their evolution. Parallel investigation of contagious cancer genomes and transcriptomes and of their micro-environment and macro-environment could shed light on the selective forces shaping tumour development at different time points: during the progressive phase and at the endpoint. A greater understanding of transmissible cancers from an evolutionary ecology perspective will provide novel avenues for the prevention and treatment of both contagious and non-communicable cancers.
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Affiliation(s)
- Beata Ujvari
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Victoria, 3216, Australia.,Faculty of Veterinary Sciences, University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Anthony T Papenfuss
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, 3052, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria, 3010, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, 3010, Australia.,Bioinformatics and Cancer Genomics, Peter MacCallum Cancer Centre, East Melbourne, Victoria, 3002, Australia
| | - Katherine Belov
- Faculty of Veterinary Sciences, University of Sydney, Sydney, New South Wales, 2006, Australia
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Lima C, Faleiro M, Rabelo R, Vulcani V, Rubini M, Torres F, Moura V. Insertion of the LINE-1 element in the C-MYC gene and immunoreactivity of C-MYC, p53, p21 and p27 proteins in different morphological patterns of the canine TVT. ARQ BRAS MED VET ZOO 2016. [DOI: 10.1590/1678-4162-8750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
ABSTRACT The canine transmissible venereal tumor (TVT) affects the external genitalia of dogs by the natural transplant of viable tumor cells. Thus, this research aimed to diagnose and characterize TVT morphological patterns, identify the insertion of the LINE-1 element in C-MYC gene, by means of the polymerase chain reaction (PCR), and evaluate the immunohistochemical expression of C-MYC, p53, p21 and p27 proteins. The relationship between C-MYC and p53 proteins and their interference on the expression of p21 and p27 were also studied. For that, 20 samples of naturally occurring TVT were used, subjected to cytopathological, histopathological and immunohistochemical analysis, and to molecular diagnosis of neoplasia. The increased tissue expression and the correlation among C-MYC, p53, p21 and p27 proteins indicate reduction and/or loss of their functionality in the TVT microenvironment, with consequent apoptotic suppression, maintenance of cell growth and progression of neoplasia.
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10
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Yin ZQ, Liu JJ, Xu YC, Yu J, Ding GH, Yang F, Tang L, Liu BH, Ma Y, Xia YW, Lin XL, Wang HX. A 41-gene signature derived from breast cancer stem cells as a predictor of survival. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2014; 33:49. [PMID: 24906694 PMCID: PMC4229870 DOI: 10.1186/1756-9966-33-49] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 04/15/2014] [Indexed: 01/28/2023]
Abstract
PURPOSE The aim of this study was to evaluate the ability of a 41-gene signature derived from breast cancer stem cells (BCSCs) to estimate the risk of metastasis and survival in breast cancer patients. METHODS The centroid expression of the 41-gene signature derived from BCSCs was applied as the threshold to classify patients into two separate groups--patients with high expression (high-EL) of the prognostic signature and patients with low expression (low-EL). The predictive ability of the 41-gene signature was evaluated by Cox regression model and was compared against other popular tests, such as Oncotype and MammaPrint. RESULTS Our results showed that the 41-gene prognostic signature was significantly associated with age (P = .0351) and ER status (P = .0095). The analysis indicated that patients in the high-EL group had a worse prognosis than those in the low-EL group in terms of both overall survival (OS: HR, 2.05, P = .009) and distant metastasis-free survival (DMFS: HR, 2.24, P = .002). Additionally, the 41-gene signature was an independent risk factor and separates patients based on estrogen receptor status. While comparable to Oncotype, the analysis demonstrated that the 41-gene signature had a better prognostic value in predicting DMFS and OS than AOL, NPI, St. Gallen, Veridex, and MammaPrint. CONCLUSIONS This study confirms the utility of the 41-gene signature and adds to the growing evidence that gene expression signatures of BCSCs have clinical potential to predict patient outcome and aid in treatment choice.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Hong-Xia Wang
- Shanghai Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China.
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11
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Kaucká M, Adameyko I. Non-canonical functions of the peripheral nerve. Exp Cell Res 2014; 321:17-24. [DOI: 10.1016/j.yexcr.2013.10.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 10/01/2013] [Accepted: 10/05/2013] [Indexed: 12/24/2022]
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12
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Hagiwara K, Obayashi T, Sakayori N, Yamanishi E, Hayashi R, Osumi N, Nakazawa T, Nishida K. Molecular and cellular features of murine craniofacial and trunk neural crest cells as stem cell-like cells. PLoS One 2014; 9:e84072. [PMID: 24465393 PMCID: PMC3896334 DOI: 10.1371/journal.pone.0084072] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2013] [Accepted: 11/11/2013] [Indexed: 11/18/2022] Open
Abstract
The outstanding differentiation capacities and easier access from adult tissues, cells derived from neural crest cells (NCCs) have fascinated scientists in developmental biology and regenerative medicine. Differentiation potentials of NCCs are known to depend on their originating regions. Here, we report differential molecular features between craniofacial (cNCCs) and trunk (tNCCs) NCCs by analyzing transcription profiles and sphere forming assays of NCCs from P0-Cre/floxed-EGFP mouse embryos. We identified up-regulation of genes linked to carcinogenesis in cNCCs that were not previously reported to be related to NCCs, which was considered to be, an interesting feature in regard with carcinogenic potentials of NCCs such as melanoma and neuroblastoma. Wnt signal related genes were statistically up-regulated in cNCCs, also suggesting potential involvement of cNCCs in carcinogenesis. We also noticed intense expression of mesenchymal and neuronal markers in cNCCs and tNCCs, respectively. Consistent results were obtained from in vitro sphere-forming and differentiation assays. These results were in accordance with previous notion about differential potentials of cNCCs and tNCCs. We thus propose that sorting NCCs from P0-Cre/floxed-EGFP mice might be useful for the basic and translational research of NCCs. Furthermore, these newly-identified genes up-regulated in cNCC would provide helpful information on NC-originating tumors, developmental disorders in NCC derivatives, and potential applications of NCCs in regenerative medicine.
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Affiliation(s)
- Kunie Hagiwara
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Seiryo-cho, Aoba-ku, Sendai, Japan
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Japan
| | - Takeshi Obayashi
- Division of Applied Informatics for Human and Life Science, Tohoku University Graduate School of Information Science, Aramaki-Aza-Aoba, Aoba-ku, Sendai, Japan
| | - Nobuyuki Sakayori
- Division of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Seiryo-cho, Aoba-ku, Sendai, Japan
| | - Emiko Yamanishi
- Division of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Seiryo-cho, Aoba-ku, Sendai, Japan
| | - Ryuhei Hayashi
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Japan
| | - Noriko Osumi
- Division of Developmental Neuroscience, Tohoku University Graduate School of Medicine, Seiryo-cho, Aoba-ku, Sendai, Japan
- * E-mail:
| | - Toru Nakazawa
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Seiryo-cho, Aoba-ku, Sendai, Japan
| | - Kohji Nishida
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Yamadaoka, Suita, Japan
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