An international team of scientists report that they have successfully mapped the cells and genes that regulate bone formation and loss and discovered the critical role that blood vessel cells play in bone health. By combining genomic sequencing with data from half a million individuals, the research team identified hundreds of previously unknown genes that govern bone health and revealed cells surrounding blood vessels as one of the drivers of bone repair. The study “Multiscale analysis and functional validation of the cellular and genetic determinants of skeletal disease” is published in Nature Genetics. The team says its findings fundamentally enhance our understanding of skeletal disease. It is hoped the discovery will enable the development of new therapies to rebuild lost bone, offering hope to almost half of all individuals over 50 living with rare and common skeletal conditions such as osteoporosis, osteoarthritis and osteogenesis imperfecta, as well as those with rare bone disorders and cancers that spread to bone. “Most people don’t realize that bones are constantly changing; the human body replaces its skeleton every 10 years or so,” said Peter Croucher, PhD, professor at the Garvan Institute of Medical Research in Australia. “This is a hugely important process, but until now we’ve had a limited understanding of the cells and mechanisms that control this turnover of bone. “Most of the drugs now available focus only on halting bone disease, rather than rebuilding lost bone, which is really important for reversing damage.” Detailed map of cells and genes that regulate bone health The team…
