An Important Discovery About Myeloma
Researchers have made a crucial discovery about how myeloma, an incurable type of blood cancer, develops from an often symptomless prior blood disorder.
The findings, by researchers from the University of Birmingham, in the UK, could lead to more effective treatments and ways to identify those most at risk of developing the cancer.
Every patient diagnosed with myeloma, a cancer of the blood-producing bone marrow, first develops a relatively benign condition called ‘monoclonal gammopathy of undetermined significance’ or ‘MGUS’.
MGUS is fairly common in the older population and only progresses to cancer in approximately one in 100 cases. However, currently there is no way of accurately predicting which patients with MGUS are likely to go on to get myeloma.
Myeloma specifically affects antibody-producing white blood cells found in the bone marrow, called plasma cells. The researcher team from the University of Birmingham, New Cross and Heartlands Hospitals compared the cellular chemistry of bone marrow and blood samples taken from patients with myeloma, patients with MGUS and healthy volunteers.
According to a news release from the University of Birmingham, the researchers found that the metabolic activity of the bone marrow of MGUS was significantly different to plasma from healthy volunteers, but there were very few differences at all between the MGUS and myeloma samples.
Metabolism is the chemical process through which cells create energy and the substances needed to grow and perform cell functions. Cancer cells promote metabolic changes to kick start and drive their rapid growth.
The findings, published in Blood Cancer Journal, suggest that the biggest metabolic changes occur with the development of the symptomless condition MGUS and not with the later progression to myeloma.
Dr Daniel Tennant, who led the research at the University of Birmingham, said, “Our findings show that very few changes are required for a MGUS patient to progress to myeloma as we now know virtually all patients with myeloma evolve from MGUS. A drug that interferes with these specific initial metabolic changes could make a very effective treatment for myeloma, so this is a very exciting discovery.”
Dr Matt Kaiser, Head of Research at the nonprofit organization Bloodwise, said, “Myeloma is a devastating cancer that can cause debilitating and painful bone damage and, although we have become better at treating it and extending the lives of myeloma patients, it is ultimately almost always fatal. This research provides the basis for developing new and more targeted treatments and minimally invasive ways of identifying those MGUS patients at risk of progressing to myeloma. If we can find ways to block the progression of MGUS, we hope to prevent many cases of myeloma in the future.”