Surgical Thyroparathyroidectomy Prevents Progression of 5TGM1 Murine Multiple Myeloma In Vivo

Publication date: Available online 23 February 2018 Source:Journal of Bone Oncology Author(s): Maurizio Zangari, Hanna Yoo, Ik Jae Shin, Donghoon Yoon, Larry J. Suva The 5TGM1 multiple myeloma transplanted C57BL6/KaLwRij model recapitulates many disease features including monoclonal paraprotein production as well as the development of osteolytic bone lesions. Since a significant association between serum parathyroid hormone PTH variations, bone anabolism and myeloma progression in patients receiving proteasome inhibitors exists, this study investigated the effect of the PTH axis on murine myeloma development in vivo. C57BL6/KaLwRij myeloma-bearing mice underwent thyroparathyroidectomy (TPTX) before and after 5TGM1 cell transplantation. TPTX significantly and permanently inhibited 5TGM1 myeloma cell engraftment and prevented multiple myeloma growth and progression. These data support the hypothesis that the PTH axis is an important mediator of myeloma bone disease.
Source: Journal of Bone Oncology - Category: Cancer & Oncology Source Type: research