Why is the CALR mutation considered lower risk in MPNs?
Research indicates that people with triple-negative MPNs (those without JAK2, CALR, or MPL mutations) may have less severe symptoms and slower disease progression. However, the search results don't specifically explain why CALR mutations themselves are considered Show Full Answer
Why is the CALR mutation considered lower risk in MPNs?
Research indicates that people with triple-negative MPNs (those without JAK2, CALR, or MPL mutations) may have less severe symptoms and slower disease progression. However, the search results don't specifically explain why CALR mutations themselves are considered lower risk compared to other mutations.
What we do know is that CALR mutations are found in a significant portion of MPN cases:
- About 3% to 24% of people with primary myelofibrosis have CALR mutations
- CALR mutations are also found in some cases of essential thrombocythemia
The CALR gene makes a protein called calreticulin, which helps control calcium levels in cells. When mutated, this can contribute to the uncontrolled growth of blood stem cells.
Your doctor can explain how your specific mutation type affects your prognosis and treatment options. Different mutations may respond differently to treatments and have varying impacts on disease progression.
February 19
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