Described herein are methods and compositions using PTH and mesenchymal stem cells (MSCs) for treatment of osteoporosis, bone fractures, and related conditions. Administration of both PTH and MSCs leads to increased homing of MSCs to sites of vertebral bone and rib fracture. The described methods and compositions provide therapeutic approaches that rely, in-part, on stem cell capacity for regeneration and repair. The potential for enhanced bone formation and fracture repair may allow for both preventative and palliative treatments in osteoporotic patients, with combined PTH+MSC therapy producing bone regeneration capacity that is significantly superior to either treatment alone.
