Characterization of a novel radiation-induced sarcoma cell line.
J Surg Oncol
; 111(6): 669-82, 2015 May.
Article
em En
| MEDLINE
| ID: mdl-25644184
ABSTRACT
BACKGROUND:
Radiation-induced sarcoma (RIS) is a potential complication of cancer treatment. No widely available cell line models exist to facilitate studies of RIS.METHODS:
We derived a spontaneously immortalized primary human cell line, UACC-SARC1, from a RIS.RESULTS:
Short tandem repeat (STR) profiling of UACC-SARC1 was virtually identical to its parental tumor. Immunohistochemistry (IHC) analysis of the tumor and immunocytochemistry (ICC) analysis of UACC-SARC1 revealed shared expression of vimentin, osteonectin, CD68, Ki67 and PTEN but tumor-restricted expression of the histiocyte markers α1-antitrypsin and α1-antichymotrypsin. Karyotyping of the tumor demonstrated aneuploidy. Comparative genomic hybridization (CGH) provided direct genetic comparison between the tumor and UACC-SARC1. Sequencing of 740 mutation hotspots revealed no mutations in UACC-SARC1 nor in the tumor. NOD/SCID gamma mouse xenografts demonstrated tumor formation and metastasis. Clonogenicity assays demonstrated that 90% of single cells produced viable colonies. NOD/SCID gamma mice produced useful patient-derived xenografts for orthotopic or metastatic models.CONCLUSION:
Our novel RIS strain constitutes a useful tool for pre-clinical studies of this rare, aggressive disease. UACC-SARC1 is an aneuploid cell line with complex genomics lacking common oncogenes or tumor suppressor genes as drivers of its biology. The UACC-SARC1 cell line will enable further studies of the drivers of RIS.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sarcoma
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Neoplasias da Mama
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Linhagem Celular Tumoral
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Neoplasias Induzidas por Radiação
Limite:
Animals
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Female
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Humans
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Middle aged
Idioma:
En
Revista:
J Surg Oncol
Ano de publicação:
2015
Tipo de documento:
Article