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Rozenblum E, Sotelo-Silveira JR, Kim GY, Zhu JY, Lau CC, McNeil N, Korolevich S, Liao H, Cherry JM, Munroe DJ, Ried T, Meltzer PS, Kuehl WM, Roschke AV. Novel near-diploid ovarian cancer cell line derived from a highly aneuploid metastatic ovarian tumor. PLoS One 2017; 12:e0182610. [PMID: 28787462 PMCID: PMC5546722 DOI: 10.1371/journal.pone.0182610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 07/23/2017] [Indexed: 01/01/2023] Open
Abstract
A new ovarian near-diploid cell line, OVDM1, was derived from a highly aneuploid serous ovarian metastatic adenocarcinoma. A metastatic tumor was obtained from a 47-year-old Ashkenazi Jewish patient three years after the first surgery removed the primary tumor, both ovaries, and the remaining reproductive organs. OVDM1 was characterized by cell morphology, genotyping, tumorigenic assay, mycoplasma testing, spectral karyotyping (SKY), and molecular profiling of the whole genome by aCGH and gene expression microarray. Targeted sequencing of a panel of cancer-related genes was also performed. Hierarchical clustering of gene expression data clearly confirmed the ovarian origin of the cell line. OVDM1 has a near-diploid karyotype with a low-level aneuploidy, but samples of the original metastatic tumor were grossly aneuploid. A number of single nucleotide variations (SNVs)/mutations were detected in OVDM1 and the metastatic tumor samples. Some of them were cancer-related according to COSMIC and HGMD databases (no founder mutations in BRCA1 and BRCA2 have been found). A large number of focal copy number alterations (FCNAs) were detected, including homozygous deletions (HDs) targeting WWOX and GATA4. Progression of OVDM1 from early to late passages was accompanied by preservation of the near-diploid status, acquisition of only few additional large chromosomal rearrangements and more than 100 new small FCNAs. Most of newly acquired FCNAs seem to be related to localized but massive DNA fragmentation (chromothripsis-like rearrangements). Newly developed near-diploid OVDM1 cell line offers an opportunity to evaluate tumorigenesis pathways/events in a minor clone of metastatic ovarian adenocarcinoma as well as mechanisms of chromothripsis.
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Affiliation(s)
- Ester Rozenblum
- Genetics Branch, CCR, NCI, NIH, Bethesda, Maryland, United States of America
| | - Jose R. Sotelo-Silveira
- Laboratory of Molecular Technology, Advanced Technology Program, SAIC-Frederick, Inc., NCI-Frederick, Frederick, Maryland, United States of America
| | - Gina Y. Kim
- Genetics Branch, CCR, NCI, NIH, Bethesda, Maryland, United States of America
| | - Jack Y. Zhu
- Genetics Branch, CCR, NCI, NIH, Bethesda, Maryland, United States of America
| | - Christopher C. Lau
- Genetics Branch, CCR, NCI, NIH, Bethesda, Maryland, United States of America
| | - Nicole McNeil
- Genetics Branch, CCR, NCI, NIH, Bethesda, Maryland, United States of America
| | - Susana Korolevich
- Laboratory of Molecular Technology, Advanced Technology Program, SAIC-Frederick, Inc., NCI-Frederick, Frederick, Maryland, United States of America
| | - Hongling Liao
- Genetics Branch, CCR, NCI, NIH, Bethesda, Maryland, United States of America
- Laboratory of Molecular Technology, Advanced Technology Program, SAIC-Frederick, Inc., NCI-Frederick, Frederick, Maryland, United States of America
| | - James M. Cherry
- Laboratory of Molecular Technology, Advanced Technology Program, SAIC-Frederick, Inc., NCI-Frederick, Frederick, Maryland, United States of America
| | - David J. Munroe
- Laboratory of Molecular Technology, Advanced Technology Program, SAIC-Frederick, Inc., NCI-Frederick, Frederick, Maryland, United States of America
- Advanced Technology Program, SAIC-Frederick, Inc., NCI-Frederick, Frederick, Maryland, United States of America
| | - Thomas Ried
- Genetics Branch, CCR, NCI, NIH, Bethesda, Maryland, United States of America
| | - Paul S. Meltzer
- Genetics Branch, CCR, NCI, NIH, Bethesda, Maryland, United States of America
| | - Walter M. Kuehl
- Genetics Branch, CCR, NCI, NIH, Bethesda, Maryland, United States of America
| | - Anna V. Roschke
- Genetics Branch, CCR, NCI, NIH, Bethesda, Maryland, United States of America
- * E-mail:
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2
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Roschke AV, Rozenblum E. Multi-layered cancer chromosomal instability phenotype. Front Oncol 2013; 3:302. [PMID: 24377086 PMCID: PMC3858786 DOI: 10.3389/fonc.2013.00302] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Accepted: 11/27/2013] [Indexed: 01/13/2023] Open
Abstract
Whole-chromosomal instability (W-CIN) – unequal chromosome distribution during cell division – is a characteristic feature of a majority of cancer cells distinguishing them from their normal counterparts. The precise molecular mechanisms that may cause mis-segregation of chromosomes in tumor cells just recently became more evident. The consequences of W-CIN are numerous and play a critical role in carcinogenesis. W-CIN mediates evolution of cancer cell population under selective pressure and can facilitate the accumulation of genetic changes that promote malignancy. It has both tumor-promoting and tumor-suppressive effects, and their balance could be beneficial or detrimental for carcinogenesis. The characterization of W-CIN as a complex multi-layered adaptive phenotype highlights the intra- and extracellular adaptations to the consequences of genome reshuffling. It also provides a framework for targeting aggressive chromosomally unstable cancers.
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Affiliation(s)
- Anna V Roschke
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Bethesda, MD , USA
| | - Ester Rozenblum
- Genetics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Bethesda, MD , USA
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3
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Salgado R, Toll A, Alameda F, Baró T, Martín-Ezquerra G, Sanmartín O, Martorell-Calatayud A, Salido M, Almenar S, Solé F, Pujol RM, Espinet B. CKS1B amplification is a frequent event in cutaneous squamous cell carcinoma with aggressive clinical behaviour. Genes Chromosomes Cancer 2010; 49:1054-61. [DOI: 10.1002/gcc.20814] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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4
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Agar NS, Halliday GM, Barnetson RS, Ananthaswamy HN, Wheeler M, Jones AM. The basal layer in human squamous tumors harbors more UVA than UVB fingerprint mutations: a role for UVA in human skin carcinogenesis. Proc Natl Acad Sci U S A 2004; 101:4954-9. [PMID: 15041750 PMCID: PMC387355 DOI: 10.1073/pnas.0401141101] [Citation(s) in RCA: 394] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
We hypothesized that a substantial portion of the mutagenic alterations produced in the basal layer of human skin by sunlight are induced by wavelengths in the UVA range. Using laser capture microdissection we examined separately basal and suprabasal keratinocytes from human skin squamous cell carcinomas and premalignant solar keratosis for both UVA- and UVB-induced adduct formation and signature mutations. We found that UVA fingerprint mutations were detectable in human skin squamous cell carcinomas and solar keratosis, mostly in the basal germinative layer, which contrasted with a predominantly suprabasal localization of UVB fingerprint mutations in these lesions. The epidermal layer bias was confirmed by immunohistochemical analyses with a superficial localization of cyclobutane thymine dimers contrasting with the localization of 8-hydroxy-2'-deoxyguanine adducts to the basal epithelial layers. If unrepaired, these adducts may lead to fixed genomic mutations. The basal location of UVA-rather than UVB-induced DNA damage suggests that longer-wavelength UVR is an important carcinogen in the stem cell compartment of the skin. Given the traditional emphasis on UVB, these results may have profound implications for future public health initiatives for skin cancer prevention.
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Affiliation(s)
- Nita S Agar
- Dermatology Research Unit, Melanoma and Skin Cancer Research Institute, Sydney Cancer Centre, Royal Prince Alfred Hospital, University of Sydney, Sydney NSW 2006, Australia
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5
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Jin Y, Jin C, Salemark L, Wennerberg J, Persson B, Jonsson N. Clonal chromosome abnormalities in premalignant lesions of the skin. CANCER GENETICS AND CYTOGENETICS 2002; 136:48-52. [PMID: 12165451 DOI: 10.1016/s0165-4608(01)00517-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Two lesions, actinic keratosis (AK) and squamous cell carcinoma in situ (CIS), are believed to be precursors of squamous cell carcinoma (SCC) of the skin. These lesions can serve as an excellent model system for studying genetic changes associated with the inception of skin SCC. In the present study, five such lesions of the skin, three AKs and two AK+CIS, from three patients were short-term cultured and analyzed cytogenetically. One of the patients (case 3) had also an SCC in addition to three premalignant lesions. All lesions, but one, showed clonal karyotypic abnormalities. The recurrent changes identified were numerical, that is, +7 and +20. The structural rearrangements found in three AK were different, but it could be noted that the distal part of the long arm of chromosome 4 was involved in two AK and the SCC of case 3A. It was also interesting that chromosome 1 participated in structural rearrangements in three AK with band 1p31 being involved in two tumors. The karyotypic profile of these lesions is compared with that of skin SCC; it turns out that the general patterns are different in the sense that the SCC more often have complex karyotypes and display unbalanced aberrations involving the centromeric regions. Some karyotypic similarities between the SCC and their precursors are revealed. The fact that the structural rearrangements involving chromosomal band 3p13 and the centromeric region of chromosome 3 in AK are common features for many types of malignant tumors, including skin SCC, indicates that these changes are early genetic events associated with malignant transformation.
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Affiliation(s)
- Yuesheng Jin
- Department of Clinical Genetics, University Hospital, Lund, Sweden.
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6
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Popp S, Waltering S, Holtgreve-Grez H, Jauch A, Proby C, Leigh IM, Boukamp P. Genetic characterization of a human skin carcinoma progression model: from primary tumor to metastasis. J Invest Dermatol 2000; 115:1095-103. [PMID: 11121147 DOI: 10.1046/j.1523-1747.2000.00173.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The type and number of genetic aberrations required for a fully malignant tumor are still unclear. This study describes the genetic analysis of a series of skin squamous cell carcinomas, representing the primary tumor, two recurrences, and a metastatic lesion from a single patient and cell lines established therefrom (MET-1 to MET-4). Comparative genomic hybridization demonstrated that: (i) most of the gains and losses were common for tumors and cell lines and affected chromosomes 3 (3p loss, 3q gain), 5 (5p gain, 5q loss), 7 (7p gain), 8 (8p loss, 8q gain), 11 (11q gain), and 17 (17p loss), and (ii) only one aberration was present in a tumor but not in the cell line (10 loss in tumor 4); and only few aberrations were cell line specific. From these, 10p loss and 17q gain were shared by all lines and tumor 4, suggesting that they were already present in all tumors, although in only a subpopulation of cells, whereas 20q gain (shared by all lines), 4q loss (MET-2), and 18p gain/18q loss (MET-3) seem to be culture derived. In agreement, multiplex fluorescence in situ hybridization demonstrated a set of common translocations for all lines thereby further confirming their common origin. In addition, each cell line, exhibited one or more individual translocation chromosomes, which suggested that MET-1 was a precursor of MET-4, whereas MET-2 and MET-3 developed in parallel. Whereas MET-1 to MET-3 were hypodiploid or hyperdiploid, MET-4 was characterized by polyploidization, a set of specific aberrations (t(3;7), t(X;2), i(10q)), and increased heterogeneity (varying translocations in individual metaphases). Using sequencing and expression studies, cells from all lines were wild type for p53, did not exhibit mutations in any of the ras genes (Harvey, Kirsten, or N-ras), and expressed wild-type fragile histidine triad gene (FHIT; mapped to 3p14.2, a locus underrepresented in all cells) transcripts. Thus, with the MET cell lines we present an in vivo skin carcinoma progression model that was genetically well defined, and which, despite originating from a sun-exposed site, is wild type for p53.
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Affiliation(s)
- S Popp
- Deutsches Krebsforschungszentrum, Division of Carcinogenesis and Differentiation, Heidelberg, Germany
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7
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Chiba S, Okuda M, Mussman JG, Fukasawa K. Genomic convergence and suppression of centrosome hyperamplification in primary p53-/- cells in prolonged culture. Exp Cell Res 2000; 258:310-21. [PMID: 10896782 DOI: 10.1006/excr.2000.4916] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Chromosome instability, a major property of cancer cells, is believed to promote mutations that establish malignant phenotypes. Centrosome hyperamplification and the consequential increase in the frequency of aberrant mitoses are the major causes of chromosome instability in cancer cells that lack the functional p53 tumor suppressor protein. Here, we examined dynamic changes of chromosome and centrosome behaviors during long-term culturing of primary epithelial cells derived from p53-null mice. The heterogeneity in the number of chromosomes per cell in the early to mid passage cell population diminished in late passage cells, giving rise to distinct subpopulations of cells. Concomitantly, centrosome hyperamplification that was observed at a high frequency in early to mid passage cells was suppressed in late passage cells. These results provide an explanation for the frequent observations that some cancer cell lines and tissues that lack functional p53 show normal centrosome behaviors and altered, yet relatively stable, chromosomes. Moreover, our in vitro findings may provide a model for possible genomic convergence in cultured cells. This may be analogous to the genomic convergence model proposed for in vivo tumor progression in which chromosome instability initially imposed during tumorigenesis becomes suppressed when neoplastic cells have acquired chromosome compositions that promise an optimal growth in a given environment.
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Affiliation(s)
- S Chiba
- Department of Cell Biology, University of Cincinnati College of Medicine, Cincinnati, Ohio 45267-0521, USA
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8
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Fadl-Elmula I, Gorunova L, Mandahl N, Elfving P, Lundgren R, Mitelman F, Heim S. Karyotypic characterization of urinary bladder transitional cell carcinomas. Genes Chromosomes Cancer 2000. [DOI: 10.1002/1098-2264(2000)9999:9999<::aid-gcc1034>3.0.co;2-o] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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9
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Jin Y, Martins C, Jin C, Salemark L, Jonsson N, Persson B, Roque L, Fonseca I, Wennerberg J. Nonrandom karyotypic features in squamous cell carcinomas of the skin. Genes Chromosomes Cancer 1999; 26:295-303. [PMID: 10534764 DOI: 10.1002/(sici)1098-2264(199912)26:4<295::aid-gcc3>3.0.co;2-w] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
We report the finding of clonal chromosome abnormalities in 13 short-term cultured squamous cell carcinomas (SCCs) of the skin. Intratumor heterogeneity, in the form of cytogenetically related (subclones) or unrelated clones, was detected in six tumors. Whereas clones with complex karyotypic changes were found in 6 tumors, clones with simple anomalies were observed in 10 tumors, and sometimes these clones coexisted with highly abnormal clones. Rearrangement of chromosome 8, in the form of isochromosome i(8q) or whole arm translocation, was the most common aberration, found predominantly in complex clones. Another recurrent feature, i.e., the centromeric rearrangement of chromosome 1, as isochromosome i(1q) or i(1p), or whole arm translocations, was always part of a complex karyotype. Homogeneously staining regions were found in two cases, one with a highly complex karyotype and the other with a simple karyotype. In order to obtain an overall karyotypic picture in SCC of the skin, the cytogenetic findings in 10 SCCs reported earlier were reviewed. The chromosomes most commonly affected were, in decreasing order, chromosomes 1, 11, 8, 9, 5, 3, and 7. Chromosomal sites most frequently rearranged were almost all pericentromeric: they were 8q10-q11, 1p10-q12, 5p10-q11, 11p15, and 9p10-q10. Recurrent anomalies were i(1q), i(8q), i(5p), i(1p), i(9p), and i(9q). Among them, only i(8q) and i(9q) might be assumed to be early genetic events, considering the fact that they could occasionally be identified in simple clones. The most frequent losses included part of or the entire chromosomes 2, 4, 9, 11, 14, 18, and 21, arm 8p, and chromosomes X, Y, and 13. Overrepresentation most frequently involved 1q, chromosome 7, and 8q. The characteristic karyotypic pattern observed in skin SCC was in line with the experience in several other carcinomas. Genes Chromosomes Cancer 26:295-303, 1999.
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Affiliation(s)
- Y Jin
- Department of Clinical Genetics, University Hospital, Lund, Sweden.
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10
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Gorunova L, Höglund M, Andrén-Sandberg A, Dawiskiba S, Jin Y, Mitelman F, Johansson B. Cytogenetic analysis of pancreatic carcinomas: intratumor heterogeneity and nonrandom pattern of chromosome aberrations. Genes Chromosomes Cancer 1998; 23:81-99. [PMID: 9739011 DOI: 10.1002/(sici)1098-2264(199810)23:2<81::aid-gcc1>3.0.co;2-0] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Twenty-nine nonendocrine pancreatic carcinomas (20 primary tumors and nine metastases) were studied by chromosome banding after short-term culture. Acquired clonal aberrations were found in 25 tumors and a detailed analysis of these revealed extensive cytogenetic intratumor heterogeneity. Apart from six carcinomas with one clone only, 19 tumors displayed from two to 58 clones, bringing the total number of clones to 230. Karyotypically related clones, signifying evolutionary variation, were found in 16 tumors, whereas unrelated clones were present in nine, the latter finding probably reflecting a distinct pathogenetic mechanism. The cytogenetic profile of pancreatic carcinoma was characterized by multiple numerical and structural changes. In total, more than 500 abnormal chromosomes, including rings, markers, homogeneously stained regions, and double minutes, altogether displaying 608 breakpoints, were detected. This complexity and heterogeneity notwithstanding, a nonrandom karyotypic pattern can be discerned in pancreatic cancer. Chromosomes 1, 3, 6, 7, 8, 11, 12, 17, and 19 and bands 1q12, 1q21, 3q11, 6p21, 6q21, 7q11, 7q22, 7q32, 11q13, 13cen, 14cen, 17q11, 17q21, and 19q13 were most frequently involved in structural rearrangements. A total of 19 recurrent unbalanced structural changes were identified, 11 of which were not reported previously: del(1)(q11), del(3)(p11), i(3)(q10), del(4)(q25), del(11)(p13), dup(11)(q13q23), i(12)(p10), der(13;15)(q10;q10), del(18)(q12), del(18)(q21), and i(19)(q10). The main karyotypic imbalances were entire-copy losses of chromosomes 18, Y, and 21, gains of chromosomes 7, 2, and 20, partial or whole-arm losses of 1p, 3p, 6q, 8p, 9p, 15q, 17p, 18q, 19p, and 20p, and partial or whole-arm gains of 1q, 3q, 5p, 6p, 7q, 8q, 11q, 12p, 17q, 19q, and 20q. In general, the karyotypic pattern of pancreatic carcinoma fits the multistep carcinogenesis concept. The observed cytogenetic heterogeneity appears to reflect a multitude of interchangeable but oncogenetically equivalent events, and the nonrandomness of the chromosomal alterations underscores the preferential pathways involved in tumor initiation and progression.
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Affiliation(s)
- L Gorunova
- Department of Clinical Genetics, University Hospital, Lund, Sweden
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11
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Bhugra B, Smolarek TA, Lynch RA, Meloni AM, Sandberg AA, Deaven L, Menon AG. Cloning of a breakpoint cluster region on chromosome 14 in uterine leiomyoma. Cancer Lett 1998; 126:119-26. [PMID: 9585056 DOI: 10.1016/s0304-3835(97)00478-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A recurrent reciprocal chromosomal translocation, t(12;14)(q15;q24) is frequently observed in uterine leiomyoma. Chromosome 12 breakpoints have been shown to occur in a region of approximately 150 kb that contains the gene for a high mobility group protein (HMGI-C). The breakpoint region on chromosome 14 has not been precisely defined. We have generated a contig of overlapping yeast artificial chromosome (YAC) clones approximately 3 Mb in size. Fluorescence in situ hybridization (FISH) analysis showed that this contig spanned the t(12;14) breakpoints in three uterine leiomyomas and that the breakpoints in these tumors occurred within a 1 Mb region. A 30 kb cosmid spanning one of the breakpoints was isolated to set the stage for identifying regions on chromosome 14 that may cause this region to be a preferential site for chromosomal translocation.
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Affiliation(s)
- B Bhugra
- Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati College of Medicine, OH 45267-0524, USA
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12
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Pavarino EC, Rossit AR, Tajara EH. Chromosome breakpoint distribution in nonmelanoma skin cancers. CANCER GENETICS AND CYTOGENETICS 1997; 99:81-4. [PMID: 9352801 DOI: 10.1016/s0165-4608(96)00433-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We have identified chromosome regions that may be sites of genes activated as a result of chromosomal rearrangements observed in 61 of the 86 skin tumors referenced in the literature. The data showed that most of the breakpoints were distributed throughout the genome and some tended to cluster. Highest frequencies of breakpoints were observed in chromosomes with high relative length, except chromosomes 14 and 15 that were often affected in malignant tumors, despite their size. Our work provides a starting point for more detailed studies that may allow identification of these genes as important keys in the development and progression of skin cancers.
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Affiliation(s)
- E C Pavarino
- Departmento de Biologia, IBILCE-UNESP, São José do Rio Preto, SP, Brazil
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13
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Affiliation(s)
- J L Rees
- Department of Dermatology, University of Newcastle upon Tyne, Royal Victoria Infirmary, UK
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14
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Gorunova L, Johansson B, Dawiskiba S, Andrén-Sandberg A, Jin Y, Mandahl N, Heim S, Mitelman F. Massive cytogenetic heterogeneity in a pancreatic carcinoma: fifty-four karyotypically unrelated clones. Genes Chromosomes Cancer 1995; 14:259-66. [PMID: 8605114 DOI: 10.1002/gcc.2870140404] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Chromosome analysis after short-term culture revealed remarkable cytogenetic heterogeneity in a pancreatic carcinoma. The patient had no prior history of radio- or chemotherapy. A total of 54 aberrant, near-diploid, karyotypically unrelated clones were identified, three of which displayed clonal evolution. The abnormalities were unbalanced in 30% of the clones. From one to eight karyotypic anomalies per clone were found. Numerical changes were rare, whereas structural aberrations were numerous and diverse and included deletions, duplication, insertions, inversions, translocations, ring formation, and telomeric associations. All chromosomes except No. 15 were involved in structural rearrangements, chromosomes 1, 6, 7, 8, 11, and 12 being the most frequently affected. A similarly massive cytogenetic polyclonality has never been reported previously. Although the spectrum of epithelial neoplasms characterized by karyotypically unrelated clones is increasing, the pathogenetic role of this type of cytogenetic intratumor heterogeneity remains unknown.
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Affiliation(s)
- L Gorunova
- Department of Clinical Genetics, University Hospital, Lund, Sweden
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15
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Pavarino EC, Antonio JR, Pozzeti EM, Larranãga HJ, Tajara EH. Cytogenetic study of neoplastic and nonneoplastic cells of the skin. CANCER GENETICS AND CYTOGENETICS 1995; 85:16-9. [PMID: 8536232 DOI: 10.1016/0165-4608(95)00128-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We describe the cytogenetic study of six neoplastic and eight nonneoplastic skin samples from sun-exposed body sites or sites close to tumors. The cytogenetic findings revealed that chromosome rearrangements are common in sun-exposed normal skin, similar to the situation in cutaneous tumors, and suggest that such karyotypic abnormalities might be indicative of the genetic instability caused by specific mutations and resulting from carcinogenic exposure of the tissue.
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Affiliation(s)
- E C Pavarino
- Departamento de Biologia, Letras e Ciências Exatas-UNESP, SP, Brazil
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16
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Gorunova L, Johansson B, Dawiskiba S, Andrén-Sandberg A, Mandahl N, Heim S, Mitelman F. Cytogenetically detected clonal heterogeneity in a duodenal adenocarcinoma. CANCER GENETICS AND CYTOGENETICS 1995; 82:146-50. [PMID: 7664244 DOI: 10.1016/0165-4608(95)00032-k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A primary duodenal adenocarcinoma, a tumor type for which no previous chromosome data existed, was cytogenetically analyzed after short-term culture. The main tumor mass was localized in the pancreatic head, but the histopathologic examination revealed its duodenal origin. A total of six abnormal, karyotypically unrelated, clones were identified. The largest exhibited clonal evolution and consisted of two subclones with massively rearranged karyotypes in the hypodiploid and hypotetraploid range. Chromosome imbalances brought about by these complex changes were gain of 1q, losses of chromosomes 6 and 9, and total or partial losses of 1p, 3p, 3q, 9p, 10p, 17p, 17q, 18q, 20p, and 20q. The remaining five smaller clones had 1-2 numerical or balanced structural chromosome aberrations. The present study thus revealed yet another epithelial tumor type characterized by karyotypically unrelated clones. For this as for other tumors, the pathogenetic significance of such cytogenetic polyclonality remains uncertain.
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Affiliation(s)
- L Gorunova
- Department of Clinical Genetics, University Hospital, Lund, Sweden
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17
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Kawasaki-Oyama RS, André FS, Caldeira LF, Castilho WH, Gasques JA, Bozola AR, Thomé JA, Tajara EH. Cytogenetic findings in two basal cell carcinomas. CANCER GENETICS AND CYTOGENETICS 1994; 73:152-6. [PMID: 8174091 DOI: 10.1016/0165-4608(94)90200-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We describe the cytogenetic study of two basal cell carcinomas. Only single chromosomally abnormal clones could be detected in both. In addition, many nonclonal changes were seen in the samples, which may represent small neoplastic clones or the result of a basic molecular defect induced by carcinogens.
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Affiliation(s)
- R S Kawasaki-Oyama
- Departmento de Biologia, Letras e Ciências Exatas-UNESP, São José do Rio Preto, SP, Brazil
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18
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Sen P. Chromosome 9 anomalies as the primary clonal alteration in a case of squamous cell carcinoma of the epiglottis. CANCER GENETICS AND CYTOGENETICS 1993; 66:23-7. [PMID: 8467470 DOI: 10.1016/0165-4608(93)90143-a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We present the cytogenetic characterization of a short-term culture of a primary squamous cell carcinoma of the epiglottis from a 67-year-old male patient who was admitted to this hospital for treatment. This patient had a history of chronic exposure to tobacco and alcohol, environmental carcinogens known to be related to the etiology of the disease. The tumor karyotype showed three distinct clones: 1) cells with chromosome 9 anomalies; 2) cells with chromosome 9 and other clonal structural anomalies involving chromosomes 1, 11, 14, and 17; and 3) cells whose chromosomes were partially or totally pulverized. The anomalies on chromosome 9 were homozygous inversion (p12q13), deletions at regions q22, q34.1, and p13, and i(9q) formation. Structural clonal anomalies on other chromosomes included translocations, deletions, and isochromosome formation. The presence of a chromosome 9 anomaly alone or in conjunction with other anomalies suggests that this aberration may be a nonrandom primary event in the progression of squamous cell carcinoma of the head and neck.
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Affiliation(s)
- P Sen
- Department of Head and Neck Surgery, University of Texas M. D. Anderson Cancer Center, Houston 77030
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19
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Hoffschir F, Ricoul M, Lemieux N, Estrade S, Cassingena R, Dutrillaux B. Jumping translocations originate clonal rearrangements in SV40-transformed human fibroblasts. Int J Cancer 1992; 52:130-6. [PMID: 1323537 DOI: 10.1002/ijc.2910520123] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A comparative study of chromosomal rearrangements occurring in 4 independent clones obtained from SV40-transformed cornea and skin human fibroblasts was performed. Rearrangements principally affect some constitutive heterochromatin and, to a lesser degree, telomeric regions. This results in multiple exchanges between a limited number of chromosome structures, i.e., in jumping translocations. Such rearrangements occur even at early passages and some of them give rise to clonal rearrangements that accumulate at late passages. This process is responsible for progressive modification of the karyotypes, principally characterized by deletion of a number of chromosome segments. Thus, clonal rearrangements are selected among many others not occurring at random. The selective pressure retaining clonal rearrangement seems to be similar for the 4 independent clones, since selection of the derivative chromosomes leads to the same imbalances, whatever the origin of the clone. This sequence of events recalls that of human solid tumors, since jumping rearrangements are generally observed in pre-malignant conditions or in low-grade malignancies, whereas clonal rearrangements leading to typical imbalances are detected in more advanced malignant tumors.
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Affiliation(s)
- F Hoffschir
- DSV-DPTE-LCG, Centre d'Etudes Nucléaires de Fontenay-aux-Roses, France
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20
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Owens W, Field JK, Howard PJ, Stell PM. Multiple cytogenetic aberrations in squamous cell carcinomas of the head and neck. EUROPEAN JOURNAL OF CANCER. PART B, ORAL ONCOLOGY 1992; 28B:17-21. [PMID: 1422465 DOI: 10.1016/0964-1955(92)90006-m] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Chromosomal abnormalities in short term cultures have been investigated in 10 squamous cell carcinomas of the head and neck. Of these tumours, three demonstrated clonal chromosomal abnormalities, two showed random abnormalities and 5 patients' tumours had normal karyotypes. The 5 patients with aberrant karyotypes were all from previously treated tumours, of these, 4 patients had received radiotherapy and 1 surgery. On analysis of the three clonal tumours, two were found to be polyclonal, each with five separate clones. 116 breakpoints were demonstrated from the clonal data of these tumours, and all of the chromosomes were involved, apart from number 18. In this study we found three or more breakpoints at sites 1p36, 9q32 and 11q23. 1 of the patients investigated showed a clonal abnormality involving a breakpoint at the 11q13 site, with a further 2 patients having breakpoints at 1p22--sites previously reported to have marked clustering of cytogenetic abnormalities in oral cancer patients. Only further studies will demonstrate whether the breakpoints found are of clinical significance.
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21
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Affiliation(s)
- N P Bown
- Department of Human Genetics, University of Newcastle upon Tyne
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22
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Mertens F, Jin Y, Heim S, Mandahl N, Jonsson N, Mertens O, Persson B, Salemark L, Wennerberg J, Mitelman F. Clonal structural chromosome aberrations in nonneoplastic cells of the skin and upper aerodigestive tract. Genes Chromosomes Cancer 1992; 4:235-40. [PMID: 1382565 DOI: 10.1002/gcc.2870040308] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Cytogenetic analyses of tumors of the skin and upper aerodigestive tract have repeatedly revealed small, pseudodiploid clones characterized by balanced structural rearrangements and a high frequency of cells with nonclonal structural aberrations. However, the lack of common cytogenetic denominators within the different histologic subtypes, the discrepancy between cytogenetic findings and data obtained from flow cytometric DNA content studies, and the occasional identification of tumors with massively rearranged karyotypes indicate that the chromosome rearrangements present in pseudodiploid cells have little to do with the tumorigenesis or progression. Further support for this conclusion, and indirect evidence that the pseudolipid clones probably do not represent the tumor cell populations, derives from the present study in which clonal and nonclonal structural rearrangements were also found in short-term cultures from nonneoplastic skin and pharyngeal mucosa. It is possible that the aberrations are present in subepithelial fibroblast that have accumulated DNA damage due to extensive exposure to potentially carcinogenic agents.
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Affiliation(s)
- F Mertens
- Department of Clinical Genetics, University Hospital, Lund, Sweden
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23
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Atkin NB, Fox MF. Possibly identical marker chromosome der(16)t(?13;16)(?q13or14;q22) in a squamous cell carcinoma of the skin and larynx. CANCER GENETICS AND CYTOGENETICS 1992; 58:198-200. [PMID: 1551089 DOI: 10.1016/0165-4608(92)90113-m] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A possibly identical marker chromosome was seen in two squamous cell carcinomas, of the face and larynx respectively, in direct preparations or 24-hour cultures. The probable designation of the marker, which may represent a significant cytogenetic event contributing to the evolution of these tumors, was der(16)t(?13;16)(?q13or14;q22).
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Affiliation(s)
- N B Atkin
- Department of Cancer Research, Mount Vernon Hospital, Northwood, Middlesex, U.K
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24
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Kehrer H, Krone W. Chromosome abnormalities in cell cultures derived from the leukoplakia of a female patient with dyskeratosis congenita. AMERICAN JOURNAL OF MEDICAL GENETICS 1992; 42:217-8. [PMID: 1733173 DOI: 10.1002/ajmg.1320420219] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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25
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Kawasaki RS, Caldeira LF, André FS, Gasques JA, Castilho WH, Bozola AR, Thomé JA, Tajara EH. Translocation (4;14) and concomitant inv(14) in a basal cell carcinoma. CANCER GENETICS AND CYTOGENETICS 1991; 56:177-80. [PMID: 1756461 DOI: 10.1016/0165-4608(91)90168-t] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Chromosome analysis of short-term cultures from a basal cell carcinoma was performed. The analyzed karyotypes showed a pseudodiploid clone characterized by a der(4)t(4;14) (p14;p11) and a concomitant inversion of the same chromosome 4 involved in the t(4;14) with the breakpoints at p14 and q25.
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Affiliation(s)
- R S Kawasaki
- Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas de São José do Rio Preto, UNESP, Brazil
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26
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Persons DL, Bridge JA, Neff JR. Cytogenetic analysis of two sacral chordomas. CANCER GENETICS AND CYTOGENETICS 1991; 56:197-201. [PMID: 1756464 DOI: 10.1016/0165-4608(91)90171-p] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cytogenetic analysis of two sacral chordomas revealed two distinct abnormal clones in one of the cases: 44,XY,t(1;3)(q42;q11), -2,der(7)t(2;7)(q23;q32), -21 and 46,X,t(Y;8)(q12;q22), t(1;14)(p34;q32),t(5;10)(q13;p11). All cells analyzed from the second case were cytogenetically normal. To the best of our knowledge, chordomas have not previously been subjected to cytogenetic analysis.
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Affiliation(s)
- D L Persons
- Department of Pathology and Oncology, University of Kansas Medical Center
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27
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Kawasaki RS, Caldeira LF, André FS, Gasques JA, Castilho WH, Bozola AR, Thomé JA, Tajara EH. Multiple cytogenetic clones in a basal cell carcinoma. CANCER GENETICS AND CYTOGENETICS 1991; 54:33-8. [PMID: 2065314 DOI: 10.1016/0165-4608(91)90027-r] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Chromosome analysis of short-term culture of a basal cell carcinoma showed five clonal chromosome abnormalities, t(9;14)(q12 or q13;p11), del(1)(q23 or q25), trisomy 5, trisomy 7, and monosomy X. In addition, several nonclonal structural and numerical changes were seen in the tumor cells.
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Affiliation(s)
- R S Kawasaki
- Departamento de Biologia, UNESP Faculdade Regional de Medicina, São José do Rio Preto, Brazil
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28
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Casati A, Stefanini M, Giorgi R, Ghetti P, Nuzzo F. Chromosome rearrangements in normal fibroblasts from xeroderma pigmentosum homozygotes and heterozygotes. CANCER GENETICS AND CYTOGENETICS 1991; 51:89-101. [PMID: 1984853 DOI: 10.1016/0165-4608(91)90014-l] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Chromosome analysis was carried out in cultured fibroblasts from unaffected skin of five unrelated xeroderma pigmentosum (XP) patients and nine family members. Structural chromosome changes were observed in cultures from all examined individuals. Furthermore, in one XPD patient and in one XPC patient and his parents, cytogenetically abnormal clones were detected. Some of these clones were present starting from the primary explant. This cytogenetic pattern is similar to that observed in an XPC patient previously studied by us. The analysis of breakpoint distribution from clonal and non-clonal chromosome rearrangements showed that some breakpoints were more frequent and common to different families or to different family members although definite evidence of preferential involvement of chromosome bands was not obtained. This investigation indicates that there is a consistent tendency toward chromosome instability in XP mutation carriers. The instability could be related to the multiple chromosome anomalies characterizing skin tumors in XP subjects.
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Affiliation(s)
- A Casati
- Istituto di Genetica Biochimica ed Evoluzionistica CNR-Pavia, Italy
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29
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Bridge JA, Neff JR, Sandberg AA. Cytogenetic analysis of dermatofibrosarcoma protuberans. CANCER GENETICS AND CYTOGENETICS 1990; 49:199-202. [PMID: 2208055 DOI: 10.1016/0165-4608(90)90142-w] [Citation(s) in RCA: 89] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A case of dermatofibrosarcoma protuberans that occurred in an old burn scar over the anterior chest wall of a 46-year-old man is reported. Cytogenetic analysis of the tumor cells showed the presence of two abnormal clones: 47,XY, +8 and 48,XY, +8, +r.
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Affiliation(s)
- J A Bridge
- Cancer Center of Southwest Biomedical Research Institute of Genetrix, Scottsdale, Arizona
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30
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Jin YS, Higashi K, Mandahl N, Heim S, Wennerberg J, Biörklund A, Dictor M, Mitelman F. Frequent rearrangement of chromosomal bands 1p22 and 11q13 in squamous cell carcinomas of the head and neck. Genes Chromosomes Cancer 1990; 2:198-204. [PMID: 2078510 DOI: 10.1002/gcc.2870020306] [Citation(s) in RCA: 60] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
We report the finding of clonal structural chromosome abnormalities in short-term cultures from 15 squamous cell carcinomas of the head and neck region. When the distribution of chromosomal breakpoints in these 15 tumors and in the 16 head and neck carcinomas previously described are assessed, a marked clustering is seen at bands 1p22 and 11q13, which are rearranged in eight and nine tumors, respectively. No other band was involved in aberrations in more than five tumors. Cytogenetic evidence of gene amplification was seen in four tumors, three times in the form of homogeneously staining regions (twice located in 11q13), and in one tumor as double minutes. Among the candidate genes for such amplification are BCLI, INT2, and HSTI, all of which map to 11q13, and NRAS, which maps to 1p22. All these oncogenes have previously been shown to be amplified in subsets of head and neck carcinomas. We conclude that bands 1p22 and 11q13 are nonrandomly involved in chromosomal rearrangements in head and neck carcinomas and suggest that activation of oncogenes located in these bands may proceed via cytogenetic mechanisms.
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Affiliation(s)
- Y S Jin
- Department of Clinical Genetics, University Hospital, Lund, Sweden
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31
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Jin YS, Heim S, Mandahl N, Biörklund A, Wennerberg J, Mitelman F. Multiple clonal chromosome aberrations in squamous cell carcinomas of the larynx. CANCER GENETICS AND CYTOGENETICS 1990; 44:209-16. [PMID: 2297681 DOI: 10.1016/0165-4608(90)90049-g] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Short-term cultures from five squamous cell carcinomas of the larynx were subjected to cytogenetic analysis. In the first three cases, two, three, and 10 chromosomally abnormal clones were detected. Single clonal abnormalities were found in cases 4 and 5. In addition to the clonal aberrations, a number of nonclonal changes were also present in all five tumors. None of the aberrations, clonal or nonclonal, was found in more than one tumor, nor did the rearrangements correspond to any of the consistently cancer-associated aberrations known from other tumors. The remarkably diverse karyotypic picture of the five squamous cell larynx carcinomas, in particular the finding of cytogenetically unrelated clones in three of them, suggests that some of these neoplasms are polyclonal rather than monoclonal.
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Affiliation(s)
- Y S Jin
- Department of Clinical Genetics, Lund University Hospital, Sweden
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32
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Jin YS, Heim S, Mandahl N, Biörklund A, Wennerberg J, Mitelman F. Unrelated clonal chromosomal aberrations in carcinomas of the oral cavity. Genes Chromosomes Cancer 1990; 1:209-15. [PMID: 2083216 DOI: 10.1002/gcc.2870010304] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Short-term cultures from 12 oral squamous cell carcinomas were cytogenetically investigated. A normal karyotype was found in 3 tumors, 2 of which had many nonclonal changes. Clonal chromosome abnormalities were detected in the remaining 9 cases, in 6 of them in the form of 2 or 3 abnormal clones. In 5 cases the different clones were cytogenetically unrelated, suggesting a multiclonal origin. Numerous additional nonclonal changes were present in 4 of the 9 tumors with clonal aberrations. None of the structural aberrations, clonal or nonclonal, were found in more than one case; nor did any of the rearrangements correspond to cancer-associated aberrations known from other tumors. The aberration breakpoints of the present series and of previously reported tongue cancer clustered to bands 1p32, 1p22, 1p11, 1q21, 1q23, 1q25, 1q32, 1q42, 1q44, 2q31, 3p11, 4q35, 7p22, 11p15, 11q13, 12q24, and 17q25.
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Affiliation(s)
- Y S Jin
- Department of Clinical Genetics, Lund University Hospital, Sweden
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33
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Scappaticci S, Lambiase S, Fraccaro M, Orecchia G. A clonal t(9;12)(q32;q21) in cultured fibroblasts from a case of Bowen's disease. CANCER GENETICS AND CYTOGENETICS 1989; 43:249-50. [PMID: 2598169 DOI: 10.1016/0165-4608(89)90036-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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34
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Scappaticci S, Fraccaro M, Orecchia G. Multiple clonal chromosome abnormalities in a superficial basal cell epithelioma. CANCER GENETICS AND CYTOGENETICS 1989; 42:309-11. [PMID: 2790763 DOI: 10.1016/0165-4608(89)90100-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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35
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Aledo R, Dutrillaux B, Lombard M, Aurias A. Cytogenetic study on eleven cutaneous neoplasms and two pre-tumoral lesions from Xeroderma pigmentosum patients. Int J Cancer 1989; 44:79-83. [PMID: 2744901 DOI: 10.1002/ijc.2910440115] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Eleven independent tumors (5 basa-cell carcinomas, 5 squamous-cell carcinomas and 1 malignant melanoma), 2 pretumoral lesions and one common nevus, developing in the skin of 10 unrelated XP patients were cytogenetically analyzed. No specific chromosomal changes were observed. Two features were relevant, however: emergence of several independent clones and over-involvement of telomeric and centromeric regions in the formation of chromosomal rearrangements. Jumping translocations were observed in 2 squamous-cell carcinomas involving telomeric and centromeric regions.
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Affiliation(s)
- R Aledo
- C.N.R.S. URA 620, Structure et Mutagénèse Chromosomiques, Institut Curie, Paris, France
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36
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Aledo R, Aurias A, Avril MF, Dutrillaux B. Jumping end-to-end dicentrics in a case of squamous cell carcinoma from a patient with xeroderma pigmentosum. CANCER GENETICS AND CYTOGENETICS 1989; 40:95-103. [PMID: 2758404 DOI: 10.1016/0165-4608(89)90150-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Cytogenetic studies of a skin squamous cell carcinoma from a xeroderma pigmentosum patient were performed at several passages. They show the existence of recurrent rearrangements: 53% were dicentrics, of which 67% were of the telomere-telomere type. The telomeric region of the long arm of chromosome 12 was the most involved (in 38% of dicentrics), followed by 22p. The origin of this type of jumping rearrangement and its possible role on cell proliferation are discussed.
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Affiliation(s)
- R Aledo
- CNRS URA 620, Institut Curie, Section de Biologie, Paris, France
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37
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Mertens F, Heim S, Mandahl N, Johansson B, Rydholm A, Biörklund A, Wennerberg J, Jonsson N, Mitelman F. Clonal chromosome aberrations in a keratoacanthoma and a basal cell papilloma. CANCER GENETICS AND CYTOGENETICS 1989; 39:227-32. [PMID: 2752375 DOI: 10.1016/0165-4608(89)90189-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Clonal chromosome abnormalities were found in short-term cultures from two epithelial skin tumors, a basal cell papilloma and a keratoacanthoma. The three-way translocation t(2;6;11)(q21;q27;p13) was the sole clonal rearrangement in the basal cell papilloma. The karyotype of the keratoacanthoma was more complex: 46,XX,der(2)(2pter----2p13::2p11----cen----2q37: :5q33----5qter),der(2) (:2p13----cen----2q37::6q23----6qter),der(5)t(2; 7;5)(q37;q11;q33),der(6) (6pter----cen----6q23::2p13----2pter),der(7)t(2; 7;5)(q37;q11;q33), del(13)(q11q14). In addition, several nonclonal structural changes were seen in both tumors.
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Affiliation(s)
- F Mertens
- Department of Clinical Genetics, University Hospital, Lund, Sweden
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38
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Jin YS, Heim S, Mandahl N, Biörklund A, Wennerberg J, Willén R, Mitelman F. Two unrelated clonal chromosome rearrangements in a nasal papilloma. CANCER GENETICS AND CYTOGENETICS 1989; 39:29-34. [PMID: 2731145 DOI: 10.1016/0165-4608(89)90226-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We have cytogenetically examined short-term cultures from a nasal papilloma, a tumor type in which chromosome aberrations have hitherto not been reported. Two pseudodiploid clones were detected, giving the tumor karyotype 46,XY,t(1;3)(p31;p12)/46,XY,t(11;?)(q25;?).
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Affiliation(s)
- Y S Jin
- Department of Clinical Genetics, Lund University Hospital, Sweden
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39
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Heim S, Mertens F, Jin YS, Mandahl N, Johansson B, Biörklund A, Wennerberg J, Jonsson N, Mitelman F. Diverse chromosome abnormalities in squamous cell carcinomas of the skin. CANCER GENETICS AND CYTOGENETICS 1989; 39:69-76. [PMID: 2731150 DOI: 10.1016/0165-4608(89)90231-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Short-term cultures from three invasive squamous cell carcinomas of the skin were cytogenetically analyzed. Clonal chromosome aberrations were found in all tumors. In the first case, two of three abnormal clones were related, and in the second case, two of five clones demonstrated cytogenetic similarities. Both clones detected in case 3 had a structural rearrangement in common. Several nonclonal changes were seen in all three cases in addition to the clonal aberrations. None of the rearrangements detected, clonal or nonclonal, corresponds to any of the consistently cancer-associated aberrations known from other neoplasms. The remarkably diverse karyotypic picture of the three squamous cell carcinomas, in particular the finding of unrelated clones in two of them, hints that these neoplasms may be poly-rather than monoclonal. The lack of a common cytogenetic denominator argues that if chromosomal changes are of pathogenetic importance in this tumor type, a wide variety of apparently dissimilar changes exist that are roughly equal in their capacity to malignantly transform skin epithelium.
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Affiliation(s)
- S Heim
- Department of Clinical Genetics, Lund University Hospital, Sweden
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40
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Mertens F, Heim S, Jin YS, Johansson B, Mandahl N, Biörklund A, Wennerberg J, Jonsson N, Mitelman F. Basosquamous papilloma. A benign epithelial skin tumor with multiple cytogenetic clones. CANCER GENETICS AND CYTOGENETICS 1989; 37:235-9. [PMID: 2702623 DOI: 10.1016/0165-4608(89)90054-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Cytogenetic analysis of short-term cultures from a basosquamous papilloma revealed the following mosaic karyotype: 46,XX,t(2;5)(q31;q31),t(8;15)(p21;q21)/46,XX,t(7;17)(p13;p13)/47,XX, t(3;20)(q12;p13),+7/46,XX,t(1:12)(p12;q13). The finding of four abnormal, cytogenetically unrelated clones suggests a multicellular origin of this benign skin tumor. None of the structural rearrangements encountered have previously been associated with neoplasia.
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Affiliation(s)
- F Mertens
- Department of Clinical Genetics, Lund University Hospital, Lund, Sweden
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