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> (2000-2004)
> (2003)
> Baldetorp Bo
> Johannsson Oskar T >
Characterization of...
Characterization of a novel breast carcinoma xenograft and cell line derived from a BRCA1 germ-line mutation carrier
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- Johannsson, Oskar T (author)
- Lund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine
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Staff, Synnöve (author)
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- Vallon-Christersson, Johan (author)
- Lund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine
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Kytöla, Soili (author)
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Gudjonsson, Thorarinn (author)
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- Rennstam, Karin (author)
- Lund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Hedenfalk, Ingrid A (author)
- Lund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Adeyinka, Adewale (author)
- Lund University,Lunds universitet,Avdelningen för klinisk genetik,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Clinical Genetics,Department of Laboratory Medicine,Faculty of Medicine
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- Kjellén, Elisabeth (author)
- Lund University,Lunds universitet,Tumörmikromiljö,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Huvud- och halscancergruppen,Forskargrupper vid Lunds universitet,Tumor microenvironment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Head and Neck Cancer Research Group,Lund University Research Groups
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- Wennerberg, Johan (author)
- Lund University,Lunds universitet,Centrum för analys och syntes,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Centre for Analysis and Synthesis,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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- Baldetorp, Bo (author)
- Lund University,Lunds universitet,Tumörmikromiljö,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Tumor microenvironment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine
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Petersen, Ole W (author)
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- Olsson, Håkan (author)
- Lund University,Lunds universitet,Medicinsk onkologi,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Tumörmikromiljö,Institutionen för kliniska vetenskaper, Lund,Lunds Melanomstudiegrupp,Forskargrupper vid Lunds universitet,Medical oncology,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Tumor microenvironment,Department of Clinical Sciences, Lund,Lund Melanoma Study Group,Lund University Research Groups
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- Oredsson, Stina (author)
- Lund University,Lunds universitet,Funktionell zoologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Functional zoology,Department of Biology,Faculty of Science
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- Isola, Jorma (author)
- Lund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine
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Borg, Ake (author)
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(creator_code:org_t)
- 2003
- 2003
- English 10 s.
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In: Laboratory Investigation. - 1530-0307. ; 83:3, s. 96-387
- Related links:
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http://www.ncbi.nlm....
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Subject headings
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- A human tumor xenograft (L56Br-X1) was established from a breast cancer axillary lymph node metastasis of a 53-year-old woman with a BRCA1 germ-line nonsense mutation (1806C>T; Q563X), and a cell line (L56Br-C1) was subsequently derived from the xenograft. The xenograft carries only the mutant BRCA1 allele and expresses mutant BRCA1 mRNA but no BRCA1 protein as determined by immunoprecipitation or Western blotting. The primary tumor, lymph node metastasis, and xenograft were hypodiploid by DNA flow cytometry, whereas the cell line displayed an aneuploidy apparently developed via polyploidization. Cytogenetic analysis, spectral karyotyping, and comparative genomic hybridization of the cell line revealed a highly complex karyotype with numerous unbalanced translocations. The xenograft and cell line had retained a somatic TP53 missense mutation (S215I) originating from the primary tumors, as well as a lack of immunohistochemically detectable expression of steroid hormone receptors, epidermal growth factor receptor, human epidermal growth factor receptor 2 (HER-2), and keratin 8. Global gene expression analysis by cDNA microarrays supported a correlation between the expression profiles of the primary tumor, lymph node metastasis, xenograft, and cell line. We conclude that L56Br-X1 and L56Br-C1 are useful model systems for studies of the pathogenesis and new therapeutic modalities of BRCA1-induced human breast cancer.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Oto-rhino-laryngologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Otorhinolaryngology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
Keyword
- Aneuploidy
- Biomarkers, Tumor
- Breast Neoplasms
- Carcinoma, Ductal, Breast
- Codon, Nonsense
- DNA, Neoplasm
- Female
- Flow Cytometry
- Genes, BRCA1
- Germ-Line Mutation
- Heterozygote
- Humans
- Lymph Nodes
- Lymphatic Metastasis
- Middle Aged
- Nucleic Acid Hybridization
- Spectral Karyotyping
- Translocation, Genetic
- Transplantation, Heterologous
- Tumor Cells, Cultured
Publication and Content Type
- art (subject category)
- ref (subject category)
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Johannsson, Oska ...
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Staff, Synnöve
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Vallon-Christers ...
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Kytöla, Soili
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Gudjonsson, Thor ...
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Rennstam, Karin
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Hedenfalk, Ingri ...
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Adeyinka, Adewal ...
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Kjellén, Elisabe ...
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Wennerberg, Joha ...
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Baldetorp, Bo
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Petersen, Ole W
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Olsson, Håkan
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Oredsson, Stina
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Isola, Jorma
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Borg, Ake
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MEDICAL AND HEAL ...
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Lund University