期刊
CANCER CHEMOTHERAPY AND PHARMACOLOGY
卷 83, 期 6, 页码 1075-1082出版社
SPRINGER
DOI: 10.1007/s00280-019-03824-3
关键词
Undifferentiated soft-tissue sarcoma; Olaratumab; Doxorubicin; Gemcitabine; Docetaxel; Patient-derived orthotopic xenograft; PDOX
PurposeOlaratumab (OLA) is a monoclonal antibody against platelet-derived growth factor receptor alpha. OLA has recently been used against soft-tissue sarcoma (STS) combined with doxorubicin (DOX), but with limited efficacy. The goal of present study was to determine the efficacy of OLA combined with gemcitabine (GEM) and docetaxel (DOC) on a chemotherapy-resistant STS patient-derived orthotopic xenograft (PDOX).MethodsUndifferentiated soft-tissue sarcoma (USTS) from a striated muscle of a patient was grown orthotopically in the right biceps femoris muscle of nude mice to establish the PDOX model. The USTS PDOX was treated with GEM alone, GEM combined with DOC, OLA combined with DOX or GEM, and OLA combined with GEM and DOC. Tumor size and body weight were measured during the 14days of treatment.ResultsTumor growth was arrested only by OLA combined with GEM and DOC. Tumors treated with OLA combined with GEM and DOC also had the most necrosis.ConclusionsThe present study demonstrates the power of the PDOX model to identify the novel effective treatment strategy of the combination of OLA, GEM and DOC for drug-resistant soft-tissue sarcoma.
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