A promising approach for treatment of tumor-induced bone diseases: Utilizing bisphosphonate derivatives of nucleoside antimetabolites

Autor: Harri Lönnberg, Luis Sanchez-Perez, Vivian Negron, David P Sebesta, Shawn Zinnen, Monica M. Reinholz, Diane F. Jelinek, Anthony J. Croatt, Amylou C. Dueck, Leslie M. Jonart, Henry B F Hal Dixon, James N. Ingle, Wilma L. Lingle, Thomas C. Spelsberg, Toshiyuki Yoneda, Gregory G. Reinholz, David Dingli, Kathleen A Kitzmann, Karl A. Nath, Abdalla K Abdalla, Bonnie K. Arendt, Stephen J. Russell, Alexander Karpeisky, Amy K Bruzek
Rok vydání: 2010
Předmět:
Zdroj: Bone. 47:12-22
ISSN: 8756-3282
DOI: 10.1016/j.bone.2010.03.006
Popis: Despite palliative treatments, tumor-induced bone disease (TIBD) remains highly debilitating for many cancer patients and progression typically results in death within two years. Therefore, more effective therapies with enhanced anti-resorptive and cytotoxic characteristics are needed. We developed bisphosphonate-chemotherapeutic conjugates designed to bind bone and hydrolyze, releasing both compounds, thereby targeting both osteoclasts and tumor cells. This study examined the effects of our lead compound, MBC-11 (the anhydride formed between arabinocytidine (AraC)-5'-phosphate and etidronate), on bone tumor burden, bone volume, femur bone mineral density (BMD), and overall survival using two distinct mouse models of TIBD, the 4T1/luc breast cancer and the KAS-6/1-MIP1alpha multiple myeloma models. In mice orthotopically inoculated with 4T1/luc mouse mammary cells, MBC-11 (0.04 microg/day; s.c.) reduced the incidence of bone metastases to 40% (4/10), compared to 90% (9/10; p=0.057) and 100% (5/5; p=0.04) of PBS- or similarly-dosed, zoledronate-treated mice, respectively. MBC-11 also significantly decreased bone tumor burden compared to PBS- or zoledronate-treated mice (p=0.021, p=0.017, respectively). MBC-11 and zoledronate (0.04 microg/day) significantly increased bone volume by two- and four-fold, respectively, compared to PBS-treated mice (p=0.005, p
Databáze: OpenAIRE