Abstract | PURPOSE: EXPERIMENTAL DESIGN: Fragments of 17 sarcomas were transplanted s.c. in female athymic NCr-nu/nu mice. Xenografts were established and characterized by morphology, fluorescence in situ hybridization analysis for the translocation and reverse transcriptase-PCR analysis for fusion transcripts. Trabectedin was injected i.v. RESULTS: Seven of 17 tumors grew as continuous xenografts, five of them being myxoid liposarcoma of the round-cell subtype. The chromosomal rearrangement and fusion transcripts in different passages were the same as in the human tumors from which they were derived. The responsiveness to trabectedin in type II myxoid liposarcoma xenografts was as high as in patients. The pathologic response was associated with the presence of the FUS-CHOP fusion gene, indicating that the drug does not totally eradicate the disease. Type III myxoid liposarcoma xenografts seemed much less sensitive to trabectedin, confirming previous clinical observations. CONCLUSIONS:
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Authors | Roberta Frapolli, Elena Tamborini, Emanuela Virdis, Ezia Bello, Eva Tarantino, Sergio Marchini, Federica Grosso, Roberta Sanfilippo, Alessandro Gronchi, Juan Carlos Tercero, Gabriella Peloso, Paolo Casali, Silvana Pilotti, Maurizio D'Incalci |
Journal | Clinical cancer research : an official journal of the American Association for Cancer Research
(Clin Cancer Res)
Vol. 16
Issue 20
Pg. 4958-67
(Oct 15 2010)
ISSN: 1557-3265 [Electronic] United States |
PMID | 20732964
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Copyright | ©2010 AACR. |
Chemical References |
- Antineoplastic Agents, Alkylating
- Dioxoles
- Tetrahydroisoquinolines
- Trabectedin
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Topics |
- Adult
- Aged
- Aged, 80 and over
- Animals
- Antineoplastic Agents, Alkylating
(pharmacology)
- Cell Growth Processes
(physiology)
- Dioxoles
(pharmacology)
- Female
- Humans
- In Situ Hybridization, Fluorescence
- Liposarcoma, Myxoid
(drug therapy, genetics, pathology)
- Male
- Mice
- Mice, Nude
- Middle Aged
- Neoplasm Transplantation
- Reverse Transcriptase Polymerase Chain Reaction
- Tetrahydroisoquinolines
(pharmacology)
- Trabectedin
- Transplantation, Heterologous
(pathology)
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