25-year-long study discovers how blood cancers evolve and worsen
Some blood cancers move with eerie patience. A patient can feel well for years, their blood counts looking steady, their daily life mostly intact. Yet deep inside the bone marrow, tiny genetic shifts may already be setting the course for something much worse. New research suggests those shifts can appear long before doctors see clear clinical signs that a disease is speeding up. That matters for people living with myeloproliferative neoplasms, or MPNs, a group of rare chronic blood cancers that begin in the bone marrow. These cancers cause the body to make blood cells in an uncontrolled way. In the UK, about 40,000 people live with these conditions, and roughly 4,000 new cases are diagnosed each year. Blood cancers with long timelines MPNs often unfold over decades. They are usually driven by mutations in genes such as JAK2, CALR or MPL. Though around 10 percent of patients do not carry those usual markers. Some remain stable and need only gentle treatment. Others go on to develop myelofibrosis, which scars the bone marrow. Or, they …





