QIAGEN N.V. today announced it has acquired an exclusive worldwide license to the biomarker calreticulin (CALR), whose recently discovered mutations are found in an estimated 15% of cases of myeloproliferative neoplasms (MPNs), a group of blood disorders. QIAGEN licensed the technology from CeMM Vienna, the Research Center for Molecular Medicine of the Austrian Academy of Sciences, whose scientists led a team that discovered the presence of mutations of the CALR protein in MPNs. QIAGEN plans to develop a molecular diagnostic test for the CALR mutations to offer each patient a clearer prognostic profile and to guide disease management. Development of a CALR diagnostic test is expected to be highly complementary to QIAGEN's kits for a key mutation of the Janus kinase 2 (JAK2) gene.
Myeloproliferative neoplasms, a group of blood disorders involving overproduction of blood cells, are chronic diseases that can lead to several complications including thrombosis (blood clots) and in some cases difficult-to-treat acute leukemia. QIAGEN already has an exclusive license for the JAK2 V617F mutation, which is present in about 75% of patients with MPNs. According to an article published in the New England Journal of Medicine in December 2013 by the CeMM team led by Robert Kralovics, patients with CALR mutations suffer from a milder form of the disease than those with the JAK2V617F mutation, including a lower risk of thrombosis and a higher survival rate.