Cytogenetic Evolution of Human Ovarian Cell Lines Associated with Chemoresistance and Loss of Tumorigenicity

In order to identify genomic changes associated with a resistant phenotype acquisition, we used comparative genomic hybridization (CGH) to compare a human ovarian cell line, Igrov1, and four derived subcell lines, resistant to vincristine and presenting a reversion of malignant properties. Multicolo...

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Main Authors: Stéphanie Struski, Martine Doco‐Fenzy, Michael Koehler, Ilse Chudoba, Francis Levy, Linda Masson, Nicole Michel, Evelyne Ulrich, Nadine Gruson, Jean Bénard, Gérard Potron, Pascale Cornillet‐Lefebvre
Format: Article
Language:English
Published: Wiley 2003-01-01
Series:Analytical Cellular Pathology
Online Access:http://dx.doi.org/10.1155/2003/151042
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author Stéphanie Struski
Martine Doco‐Fenzy
Michael Koehler
Ilse Chudoba
Francis Levy
Linda Masson
Nicole Michel
Evelyne Ulrich
Nadine Gruson
Jean Bénard
Gérard Potron
Pascale Cornillet‐Lefebvre
author_facet Stéphanie Struski
Martine Doco‐Fenzy
Michael Koehler
Ilse Chudoba
Francis Levy
Linda Masson
Nicole Michel
Evelyne Ulrich
Nadine Gruson
Jean Bénard
Gérard Potron
Pascale Cornillet‐Lefebvre
author_sort Stéphanie Struski
collection DOAJ
description In order to identify genomic changes associated with a resistant phenotype acquisition, we used comparative genomic hybridization (CGH) to compare a human ovarian cell line, Igrov1, and four derived subcell lines, resistant to vincristine and presenting a reversion of malignant properties. Multicolor FISH (Multiplex‐FISH and Spectral Karyotype) and conventional FISH are also used to elucidate the karyotype of parental cell line. The drug‐resistant subcell lines displayed many chromosomal abnormalities suggesting the implication of different pathways leading to a multidrug resistance phenotype. However, these cell lines shared two common rearrangements: an unbalanced translocation der(8)t(8;13)(p22;q?) and a deletion of the 11p. These chromosomal imbalances could reflected the acquisition of the chemoresistance (der(8)) or the loss of tumorigenicity properties (del(11p)). Colour figure can be viewed on http://www.esacp.org/acp/2003/25‐3/struski.htm.
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language English
publishDate 2003-01-01
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series Analytical Cellular Pathology
spelling doaj-art-3d2ef34cd2634cf7bb930c91d0f6e39a2025-02-03T01:22:13ZengWileyAnalytical Cellular Pathology0921-89121878-36512003-01-0125311512210.1155/2003/151042Cytogenetic Evolution of Human Ovarian Cell Lines Associated with Chemoresistance and Loss of TumorigenicityStéphanie Struski0Martine Doco‐Fenzy1Michael Koehler2Ilse Chudoba3Francis Levy4Linda Masson5Nicole Michel6Evelyne Ulrich7Nadine Gruson8Jean Bénard9Gérard Potron10Pascale Cornillet‐Lefebvre11Laboratory of Hematology, Robert Debré Hospital and Medical Faculty (UPRES EA 20‐70‐IFR 53 Biomolecules), 51100 Reims, FranceLaboratory of Cytogenetic, Maison Blanche Hospital, 51100 Reims, FranceASI GmbH, 68309 Mannheim, GermanyMetaSystems, 68804 Altlussheim, GermanyPolytec‐PI, Electro‐optics Division, 93694 Pantin, FranceLaboratory of Cytogenetic, Maison Blanche Hospital, 51100 Reims, FranceLaboratory of Cytogenetic, Maison Blanche Hospital, 51100 Reims, FranceLaboratory of Cytogenetic, Maison Blanche Hospital, 51100 Reims, FranceLaboratory of Cytogenetic, Maison Blanche Hospital, 51100 Reims, FranceGustave Roussy Institute, 94800 Villejuif, FranceLaboratory of Hematology, Robert Debré Hospital and Medical Faculty (UPRES EA 20‐70‐IFR 53 Biomolecules), 51100 Reims, FranceLaboratory of Hematology, Robert Debré Hospital and Medical Faculty (UPRES EA 20‐70‐IFR 53 Biomolecules), 51100 Reims, FranceIn order to identify genomic changes associated with a resistant phenotype acquisition, we used comparative genomic hybridization (CGH) to compare a human ovarian cell line, Igrov1, and four derived subcell lines, resistant to vincristine and presenting a reversion of malignant properties. Multicolor FISH (Multiplex‐FISH and Spectral Karyotype) and conventional FISH are also used to elucidate the karyotype of parental cell line. The drug‐resistant subcell lines displayed many chromosomal abnormalities suggesting the implication of different pathways leading to a multidrug resistance phenotype. However, these cell lines shared two common rearrangements: an unbalanced translocation der(8)t(8;13)(p22;q?) and a deletion of the 11p. These chromosomal imbalances could reflected the acquisition of the chemoresistance (der(8)) or the loss of tumorigenicity properties (del(11p)). Colour figure can be viewed on http://www.esacp.org/acp/2003/25‐3/struski.htm.http://dx.doi.org/10.1155/2003/151042
spellingShingle Stéphanie Struski
Martine Doco‐Fenzy
Michael Koehler
Ilse Chudoba
Francis Levy
Linda Masson
Nicole Michel
Evelyne Ulrich
Nadine Gruson
Jean Bénard
Gérard Potron
Pascale Cornillet‐Lefebvre
Cytogenetic Evolution of Human Ovarian Cell Lines Associated with Chemoresistance and Loss of Tumorigenicity
Analytical Cellular Pathology
title Cytogenetic Evolution of Human Ovarian Cell Lines Associated with Chemoresistance and Loss of Tumorigenicity
title_full Cytogenetic Evolution of Human Ovarian Cell Lines Associated with Chemoresistance and Loss of Tumorigenicity
title_fullStr Cytogenetic Evolution of Human Ovarian Cell Lines Associated with Chemoresistance and Loss of Tumorigenicity
title_full_unstemmed Cytogenetic Evolution of Human Ovarian Cell Lines Associated with Chemoresistance and Loss of Tumorigenicity
title_short Cytogenetic Evolution of Human Ovarian Cell Lines Associated with Chemoresistance and Loss of Tumorigenicity
title_sort cytogenetic evolution of human ovarian cell lines associated with chemoresistance and loss of tumorigenicity
url http://dx.doi.org/10.1155/2003/151042
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