Osteoporosis is a disease that causes bones to become brittle and prone to fractures. Due to the aging of the population, the number of patients in Japan is estimated to exceed 15 million in the near future.

Among osteoporosis-related fractures, compression fractures of the spine, known as osteoporotic vertebral fractures, are the most common type of fracture and pose a serious problem, leading to a need for long-term care and a significant decline in quality of life.

Stem cells taken from adipose tissue (ADSCs) are a possible solution to this problem. These cells are multipotent, meaning that they can be differentiated into many different cell types.