Visualizing Engrafted Human Cancer and Therapy Responses in Immunodeficient Zebrafish.
Cell
; 177(7): 1903-1914.e14, 2019 06 13.
Article
en En
| MEDLINE
| ID: mdl-31031007
Xenograft cell transplantation into immunodeficient mice has become the gold standard for assessing pre-clinical efficacy of cancer drugs, yet direct visualization of single-cell phenotypes is difficult. Here, we report an optically-clear prkdc-/-, il2rga-/- zebrafish that lacks adaptive and natural killer immune cells, can engraft a wide array of human cancers at 37°C, and permits the dynamic visualization of single engrafted cells. For example, photoconversion cell-lineage tracing identified migratory and proliferative cell states in human rhabdomyosarcoma, a pediatric cancer of muscle. Additional experiments identified the preclinical efficacy of combination olaparib PARP inhibitor and temozolomide DNA-damaging agent as an effective therapy for rhabdomyosarcoma and visualized therapeutic responses using a four-color FUCCI cell-cycle fluorescent reporter. These experiments identified that combination treatment arrested rhabdomyosarcoma cells in the G2 cell cycle prior to induction of apoptosis. Finally, patient-derived xenografts could be engrafted into our model, opening new avenues for developing personalized therapeutic approaches in the future.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Rabdomiosarcoma
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Pez Cebra
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Animales Modificados Genéticamente
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Protocolos de Quimioterapia Combinada Antineoplásica
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Neoplasias de los Músculos
Límite:
Animals
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Female
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Humans
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Male
Idioma:
En
Revista:
Cell
Año:
2019
Tipo del documento:
Article