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lüll Understanding the biology of bone metastases: key to the effective treatment of prostate cancer Logothetis CJ; Navone NM; Lin SHClin Cancer Res 2008[Mar]; 14 (6): 1599-602Advanced prostate cancer is dominated by bone-forming osseous metastases. Understanding the biology behind this striking clinical manifestation is the key to its effective treatment. A clinical trial using a bone-targeting radiopharmaceutical agent, strontium 89, combined with chemotherapy showed increased survival time among patients with progression of prostate cancer in bone, suggesting that therapeutic strategies focused on treating the tumor in bone are effective. We and others thus hypothesize that interactions between prostate cancer cells and the bone microenvironment play a role in the progression of prostate cancer in bone. Clinical trials and basic science investigations aiming to understand such interactions have been carried out in parallel. In the laboratory studies, human bone marrow specimens have been collected for identification of proteins involved in the bidirectional interactions between prostate cancer cells and bone. In addition, specimens from bone biopsies of the cancer lesions have been used to generate xenografts in animals to establish animal models for testing therapeutic strategies. Clinical trials using agents to inhibit the stromal-prostate cancer interactions (e.g., docetaxel/imatinib or thalidomide) have been done. Analyses of the specimens from these trials provided support of our hypothesis and future development of diagnosis and therapy strategies.|*Health Knowledge, Attitudes, Practice[MESH]|Animals[MESH]|Bone Neoplasms/*secondary/therapy[MESH]|Carcinoma/*pathology/*therapy[MESH]|Humans[MESH]|Male[MESH]|Models, Biological[MESH]|Prostatic Neoplasms/*pathology/*therapy[MESH]|Treatment Outcome[MESH]|Xenograft Model Antitumor Assays[MESH] |