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Núñez-Toldrà R, Martínez-Sarrà E, Gil-Recio C, Carrasco MÁ, Al Madhoun A, Montori S, Atari M. Dental pulp pluripotent-like stem cells (DPPSC), a new stem cell population with chromosomal stability and osteogenic capacity for biomaterials evaluation. BMC Cell Biol 2017; 18:21. [PMID: 28427322 PMCID: PMC5399345 DOI: 10.1186/s12860-017-0137-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 04/12/2017] [Indexed: 12/31/2022] Open
Abstract
Background Biomaterials are widely used to regenerate or substitute bone tissue. In order to evaluate their potential use for clinical applications, these need to be tested and evaluated in vitro with cell culture models. Frequently, immortalized osteoblastic cell lines are used in these studies. However, their uncontrolled proliferation rate, phenotypic changes or aberrations in mitotic processes limits their use in long-term investigations. Recently, we described a new pluripotent-like subpopulation of dental pulp stem cells derived from the third molars (DPPSC) that shows genetic stability and shares some pluripotent characteristics with embryonic stem cells. In this study we aim to describe the use of DPPSC to test biomaterials, since we believe that the biomaterial cues will be more critical in order to enhance the differentiation of pluripotent stem cells. Methods The capacity of DPPSC to differentiate into osteogenic lineage was compared with human sarcoma osteogenic cell line (SAOS-2). Collagen and titanium were used to assess the cell behavior in commonly used biomaterials. The analyses were performed by flow cytometry, alkaline phosphatase and mineralization stains, RT-PCR, immunohistochemistry, scanning electron microscopy, Western blot and enzymatic activity. Moreover, the genetic stability was evaluated and compared before and after differentiation by short-comparative genomic hybridization (sCGH). Results DPPSC showed excellent differentiation into osteogenic lineages expressing bone-related markers similar to SAOS-2. When cells were cultured on biomaterials, DPPSC showed higher initial adhesion levels. Nevertheless, their osteogenic differentiation showed similar trend among both cell types. Interestingly, only DPPSC maintained a normal chromosomal dosage before and after differentiation on 2D monolayer and on biomaterials. Conclusions Taken together, these results promote the use of DPPSC as a new pluripotent-like cell model to evaluate the biocompatibility and the differentiation capacity of biomaterials used in bone regeneration. Electronic supplementary material The online version of this article (doi:10.1186/s12860-017-0137-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Raquel Núñez-Toldrà
- Regenerative Medicine Research Institute, Universitat Internacional de Catalunya, Barcelona, Spain.,Chair of Regenerative Implantology MIS-UIC, Barcelona, Spain
| | - Ester Martínez-Sarrà
- Regenerative Medicine Research Institute, Universitat Internacional de Catalunya, Barcelona, Spain.,Chair of Regenerative Implantology MIS-UIC, Barcelona, Spain
| | - Carlos Gil-Recio
- Regenerative Medicine Research Institute, Universitat Internacional de Catalunya, Barcelona, Spain.,Chair of Regenerative Implantology MIS-UIC, Barcelona, Spain
| | | | | | - Sheyla Montori
- Regenerative Medicine Research Institute, Universitat Internacional de Catalunya, Barcelona, Spain.,Chair of Regenerative Implantology MIS-UIC, Barcelona, Spain
| | - Maher Atari
- Regenerative Medicine Research Institute, Universitat Internacional de Catalunya, Barcelona, Spain. .,Chair of Regenerative Implantology MIS-UIC, Barcelona, Spain. .,Surgery and Oral Implantology Department, Universitat Internacional de Catalunya, Barcelona, Spain.
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Rius M, Obradors A, Daina G, Cuzzi J, Marques L, Calderon G, Velilla E, Martinez-Passarell O, Oliver-Bonet M, Benet J, Navarro J. Reliability of short comparative genomic hybridization in fibroblasts and blastomeres for a comprehensive aneuploidy screening: first clinical application. Hum Reprod 2010; 25:1824-35. [DOI: 10.1093/humrep/deq118] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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Li R, Liu Z, Fan T, Jiang F. A novel multiple FISH array for the detection of genetic aberrations in cancer. J Transl Med 2006; 86:619-27. [PMID: 16518404 DOI: 10.1038/labinvest.3700408] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Interphase multicolor fluorescence in situ hybridization (IM-FISH) has great promise for improving cancer diagnosis because it can directly visualize multiple changes in chromosomes and gene copy number on a cell-to-cell basis. However, no more than four targets can be detected simultaneously by current commercially available IM-FISH protocols, and the DNA probes used are too large to detect the single-gene aberrations that characterize tumorigenesis. As a result, multiple FISH has a low sensitivity in detecting cancer cells. To overcome such limitations, we first developed specific genomic probes for the genes relevant to primary lung cancer. We next designed a multiple FISH array by arranging four different compositions of cocktails of four probes for each gene on a coverslip, which allowed four four-color FISH experiments to be performed in parallel on a single slide. We then tested the multiple FISH array on bronchial brushing samples from lung cancer patients to determine its ability to detect genetic abnormalities. A comparison of the data with the results of cytology and commercial four-color FISH suggested that the multiple FISH array had the highest sensitivity for cancer detection. The technique may thus be a powerful laboratory strategy for cancer prevention and early detection and for improved patient management.
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Affiliation(s)
- Ruiyun Li
- Department of Surgery, The University of Maryland School of Medicine, Baltimore, 21201-1192, USA
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Yang YH, Yang ES, Kwon JY, Kim IK, Park YW. Prenatal Diagnosis of Trisomy 21 with Fetal Cells in Maternal Blood Using Comparative Genomic Hybridization. Fetal Diagn Ther 2005; 21:125-33. [PMID: 16354990 DOI: 10.1159/000089062] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2004] [Accepted: 01/18/2005] [Indexed: 11/19/2022]
Abstract
OBJECTIVE This study was undertaken to determine the clinical use of comparative genomic hybridization (CGH) for detection of fetal trisomy 21 from fetal ceIls (nucleated red blood cells; nRBCs) isolated from maternal peripheral venous blood. METHODS Maternal peripheral venous blood samples were collected in sterile tubes containing heparin. After triple density gradient centrifugation, magnetic activated cell sorting using CD45 and CD71 was used to isolate the fetal nRBCs. Fetal nRBCs were successfully isolated from maternal peripheral blood in all cases. After laser-microdissecting fetal nRBCs, degenerate oligonucleotide-primed polymerase chain reaction, and nick translation, DNA size was suitable for hybridization. RESULTS By CGH analysis, we diagnosed one normal male, one normal female, and one trisomy 21 male fetus. These results were confirmed by amniocentesis. CONCLUSIONS Prenatal diagnosis from fetal cells in maternal peripheral blood by CGH shows clinical promise as an alternative or as a supplement to fluorescence in situ hybridization with chromosome-specific probes but further studies are warranted.
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Affiliation(s)
- Young Ho Yang
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Korea.
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Isagi Y, Honjo M, Washitani I. Development of microsatellite markers for Primula sieboldii
using degenerate oligonucleotide-primed PCR-amplified DNA. ACTA ACUST UNITED AC 2005. [DOI: 10.1046/j.1471-8278.2000.00009.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Wilton L. Preimplantation genetic diagnosis and chromosome analysis of blastomeres using comparative genomic hybridization. Hum Reprod Update 2004; 11:33-41. [PMID: 15569702 DOI: 10.1093/humupd/dmh050] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Numerical chromosome errors are known to be common in early human embryos and probably make a significant contribution to early pregnancy loss and implantation failure in IVF patients. Over recent years fluorescent in situ hybridization (FISH) has been used to document embryonic aneuploidies. Many IVF laboratories perform preimplantation genetic diagnosis (PGD) with FISH to select embryos that are free from some aneuploidies in an attempt to improve implantation, pregnancy and live birth rates in particular categories of IVF patients. The usefulness of FISH is limited because only a few chromosomes can be detected simultaneously in a single biopsied cell. Complete karyotyping at the single cell level can now be achieved by comparative genomic hybridization (CGH). CGH enables not only enumeration of all chromosomes but gives a more complete picture of the entire length of each chromosome and has demonstrated that chromosomal breakages and partial aneuploidies exist in embryos. CGH has provided invaluable information about the extent of mosaicism and aneuploidy of all chromosomes in early human conceptuses. CGH has been applied to clinical PGD and has resulted in the birth of healthy babies from embryos whose full karyotype was determined in the preimplantation phase.
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Affiliation(s)
- Leeanda Wilton
- Genetic and Molecular Research, Melbourne IVF, 320 Victoria Parade, East Melbourne 3002, Victoria, Australia.
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Ferguson-Smith MA, Yang F, Rens W, O'Brien PCM. The impact of chromosome sorting and painting on the comparative analysis of primate genomes. Cytogenet Genome Res 2004; 108:112-21. [PMID: 15545723 DOI: 10.1159/000080809] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2003] [Accepted: 12/18/2003] [Indexed: 11/19/2022] Open
Abstract
Chromosome sorting by flow cytometry is the main source of chromosome-specific DNA for the production of painting probes. These probes have been used for cross-species in situ hybridization in the construction of comparative maps, in the study of karyotype evolution and phylogenetics, in delineating territories in interphase nuclei, and in the analysis of chromosome breakpoints. We review here the contributions that this technology has made to the analysis of primate genomes.
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Affiliation(s)
- M A Ferguson-Smith
- Centre for Veterinary Science, University of Cambridge, Cambridge, United Kingdom.
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Abstract
Reverse chromosome painting, as the opposite of forward chromosome painting, means that an abnormal chromosome of interest is recovered by flow sorting or by chromosome microdissection, amplified and labelled by DOP-PCR and hybridized onto normal metaphases of optimal quality. This provides rapid and unequivocal information about the chromosomal origin on the aberrant chromosome in one hybridization. Not only will the specific chromosome(s) involved be identified, but also the subchromosomal origin, including the breakpoints. The method has been used for over 10 years and has proven to be very useful for resolving complex chromosome rearrangements in a variety of different applications, both as a research tool and for clinical purposes in pre- and postnatal diagnosis.
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Affiliation(s)
- Elisabeth Blennow
- Department of Clinical Genetics, Karolinska Hospital, SE-171 76 Stockholm, Sweden.
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Barrett IJ, Lomax BL, Loukianova T, Tang SS, Lestou VS, Kalousek DK. Comparative genomic hybridization: a new tool for reproductive pathology. Arch Pathol Lab Med 2001; 125:81-4. [PMID: 11151058 DOI: 10.5858/2001-125-0081-cgh] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To demonstrate the effectiveness of comparative genomic hybridization (CGH) for analysis of reproductive pathology specimens in clinical cytogenetics laboratories. DESIGN A total of 856 CGH analyses were performed on various placental and fetal tissues derived from 368 specimens of spontaneous abortions and on placentas from 219 pregnancies with live-born infants. The live-born infants were clinically evaluated as normally developed, with either a normal birth weight or with intrauterine growth restriction; some live-born infants had an abnormal prenatal triple screen with normal cytogenetic results on amniotic fluid cell cultures. RESULTS Comparative genomic hybridization analysis was successfully performed on 856 samples from spontaneously aborted specimens and term placentas. Failure of analysis occurred in 1.6% of samples and was due to an insufficient amount of tissue for DNA extraction. Comparative genomic hybridization identified aneuploidy in 53% of spontaneous abortion samples and 3.1% of term placentas. CONCLUSIONS Comparative genomic hybridization analysis is a useful clinical tool for detection of aneuploidy in placental and fetal tissues. It provides a genome-wide screen while eliminating tissue culture failures, culture artifacts, and maternal cell contamination. We present practical guidelines for interpreting CGH profiles derived from human reproductive specimens.
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Affiliation(s)
- I J Barrett
- Department of Pathology & Laboratory Medicine, The University of British Columbia, Vancouver, BC, Canada
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Tsezou A, Kitsiou S, Galla A, Petersen MB, Karadima G, Syrrou M, Sahlèn S, Blennow E. Molecular cytogenetic characterization and origin of two de novo duplication 9p cases. AMERICAN JOURNAL OF MEDICAL GENETICS 2000; 91:102-6. [PMID: 10748406 DOI: 10.1002/(sici)1096-8628(20000313)91:2<102::aid-ajmg4>3.0.co;2-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We report on two additional cases with duplication of 9p, minor with facial anomalies and developmental delay. Using fluorescence in situ hybridization and single-copy probes, we showed that the first case was a direct duplication, whereas the second case was inverted. The extent of the direct duplication was defined as 9p12 --> p24 by microdissection and microcloning of the aberrant chromosome and subsequent chromosome-specific comparative genomic hybridization. DNA polymorphism analysis with eight microsatellite markers revealed that the origin of the dup(9p) was maternal in the first case, whereas it was paternal in the second.
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Affiliation(s)
- A Tsezou
- Genetics Unit, 2nd Department of Pediatrics, Athens Medical School, Athens, Greece
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Koo SH, Kwon KC, Shin SY, Jeon YM, Park JW, Kim SH, Noh SM. Genetic alterations of gastric cancer: comparative genomic hybridization and fluorescence In situ hybridization studies. CANCER GENETICS AND CYTOGENETICS 2000; 117:97-103. [PMID: 10704677 DOI: 10.1016/s0165-4608(99)00152-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Genetic changes leading to the development of gastric cancers are still in dispute. In the following study, we used comparative genomic hybridization (CGH) to screen for DNA copy number changes along all chromosomes in 37 gastric carcinomas, and fluorescence in situ hybridization (FISH) with the C-MYC and TP53 probes in 14 cases for comparison. The aim of this study was to identify those chromosome regions that contain genes important for the development of gastric carcinomas and to identify genetic markers associated with tumor progression. The most often involved gains were 2q, 7pq, 8pq, 13q, 17q, 18q, and 20pq. The most commonly deleted regions were 17p. The pattern of genetic changes was different depending on the existence of nodal metastasis and histologic types. Gains in 8q and losses in 17p were the most common features of the CGH changes. However, only 3 among the available 10 cases (30%) showed an amplification of the C-MYC gene by FISH. Allelic loss of TP53 was found in 2 of 4 cases (50%). This difference might be due to another rearrangement of these 2 genes which cannot be detected by FISH, or other possible genes in that area may be involved in the tumorigenesis and nodal metastasis of gastric carcinomas.
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Affiliation(s)
- S H Koo
- Department of Clinical Pathology, Chungnam National University Hospital, Taejon, South Korea
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Huang Q, Schantz SP, Rao PH, Mo J, McCormick SA, Chaganti R. Improving degenerate oligonucleotide primed PCR-comparative genomic hybridization for analysis of DNA copy number changes in tumors. Genes Chromosomes Cancer 2000. [DOI: 10.1002/1098-2264(200008)28:4<395::aid-gcc5>3.0.co;2-j] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Affiliation(s)
- Lucille Voullaire
- The Murdoch Institute, Royal Children's Hospital, Flemington Road, Parkville, VIC 3052, Australia
| | | | - Howard Slater
- The Murdoch Institute, Royal Children's Hospital, Flemington Road, Parkville, VIC 3052, Australia
| | - Robert Williamson
- The Murdoch Institute, Royal Children's Hospital, Flemington Road, Parkville, VIC 3052, Australia
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Levy B, Dunn TM, Kaffe S, Kardon N, Hirschhorn K. Clinical applications of comparative genomic hybridization. Genet Med 1998; 1:4-12. [PMID: 11261428 DOI: 10.1097/00125817-199811000-00004] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
PURPOSE Comparative genomic hybridization (CGH) is a powerful DNA-based cytogenetic technique that allows the entire genome to be scanned for chromosomal imbalances without requiring the sample material to be mitotically active. During the past 2 years we received many requests from various medical centers around the country to use CGH to resolve the identity of aberrant chromosomal material. METHODS We report the use of CGH for the evaluation of 12 clinical postnatal cases in which traditional cytogenetic analysis yielded ambiguous results. This series consisted of five marker chromosomes, five unbalanced translocations, and two intrachromosomal duplications. RESULTS Identification and characterization of the additional unknown chromosomal material was achieved with use of CGH. All CGH findings were validated by traditional fluorescence in situ hybridization and other specialized staining techniques. CONCLUSLONS: These results demonstrate the effective use of CGH as a focused, single-step method for the identification of chromosomal material of unknown origin.
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Affiliation(s)
- B Levy
- Department of Human Genetics and Pediatrics, Mount Sinai School of Medicine, New York, NY 10029, USA.
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