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Specific bone region localization of osteolytic versus osteoblastic lesions in a patient-derived xenograft model of bone metastatic prostate cancer

引用

Asian Journal of Urology 2016年第4期3卷 229-239页

作者： takeshi Hirata Seung Chol Park mich.lle t.muldong Christina N.Wu tomonori Yamaguchi Amy Strasner Omer Raheem Hiromi Kumon Robert L.Sah Nicholas A.Cacalano Catriona H.M.Jamieson Christopher J.Kane Koichi Masuda Anna A.Kulidjian Christina A.M.Jamieson Department of Urology Okayama University Graduate School of MedicineDentistry and Pharmaceutical SciencesOkayamaJapan Department of Urology Wonkwang University School of Medicine and HospitalIksanSouth Korea Moores Cancer Center University of CaliforniaSan DiegoLa JollaCAUSA Department of Urology University of CaliforniaSan DiegoLa JollaCAUSA Department of Surgery University of CaliforniaSan DiegoLa JollaCAUSA Department of Medicine University of CaliforniaSan DiegoLa JollaCAUSA Department of Orthopaedic Surgery School of MedicineUniversity of CaliforniaSan DiegoLa JollaCAUSA Department of Bioengineering University of CaliforniaSan DiegoLa JollaCAUSA Department of Radiation Oncology University of California at Los AngelesLos AngelesCAUSA

Objective:Bone metastasis occurs in up to 90%of men with advanced prostate cancer and leads to fractures,severe pain and *** metastases induce a spectrum of types of bone lesions which can respond differently to therapy even within individual prostate cancer ***,the special environment of the bone makes the disease more complicated and incurable.A model in which bone lesions are reproducibly induced that mirrors the complexity seen in patients would be invaluable for pre-clinical testing of novel *** microstructural changes in the femurs of mice implanted with PCSD1,a new patient-derived xenograft from a surgical prostate cancer bone metastasis specimen,were ***:Quantitative micro-computed tomography(micro-Ct)and histological analyses were performed to evaluate the effects of direct injection of PCSD1 cells or media alone(Control)into the right femurs of Rag2/gc/male ***:Bone lesions formed only in femurs of mice injected with PCSD1 *** volume(BV)was significantly decreased at the proximal and distal ends of the femurs(pt diameter(ptly increased along the femur ***:PCSD1 cells reproducibly induced bone loss leading to osteolytic lesions at the ends of the femur,and,in contrast,induced aberrant bone formation leading to osteoblastic lesions along the femur ***,the interaction of PCSD1 cells with different bone region-specific microenvironments specified the type of bone *** approach can be used to determine if different bone regions support more therapy resistant tumor growth,thus,requiring novel treatments.

关键词： Bone metastatic prostate cancer Patient-derived xenograft microenvironment Microstructural Ct Osteolytic lesions Osteoblastic lesions

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