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    • 6. 发明申请
    • PROGNOSTIC MARKER FOR MYELOPROLIFERATIVE NEOPLASMS
    • 孕激素标志物
    • WO2016207405A1
    • 2016-12-29
    • PCT/EP2016/064754
    • 2016-06-24
    • INSTITUT GUSTAVE-ROUSSY
    • BELLANNE-CHANTELOT, ChristinePLO, IsabelleVAINCHENKER, WilliamSAINT-MARTIN, CécileDI STEFANO, AntonioSALIBA, Joseph
    • C12Q1/68
    • C12Q1/6886C12Q2600/156
    • The present inventors identified for the first time a germline genomic alteration that accounts for familial myeloproliferative neoplasms (MPN) and myeloid malignancies. More precisely, they identified a 700 kb germline duplication that predisposes patients to essential thrombocythemia (ET) with a high frequency of evolution to myelofibrosis (MF), secondary myelodysplastic syndromes (MDS) or acute myeloid leukemia (AML). Two out of the 6 duplicated genes (namely ATG2B and GSKIP) have been shown to be overexpressed in hematopoietic progenitors, and this overexpression cooperates with classical mutations in JAK2, MPL, and CALR to generate the MPN phenotype. The presence of the 700 kb germline duplication is thus of poor prognosis for a MPN patient. The present invention discloses a method for detecting a predisposition of developing a MPN, as well as a prognostic method for assessing the probability that an ET-suffering patient will develop a myelofibrosis, a secondary MDS or an AML. It also discloses a treating method for delaying MPN worsening, said treating method involving the inhibition of the ATG2B and GSKIP duplicated genes.
    • 本发明人第一次鉴定了家族性骨髓增生性肿瘤(MPN)和骨髓恶性肿瘤的种系基因组改变。 更准确地说,他们确定了700 kb的种系重复,使患者易发生原发性血小板增多症(ET),发生率高于骨髓纤维化(MF),继发性骨髓增生异常综合征(MDS)或急性骨髓性白血病(AML)。 6个重复基因(即ATG2B和GSKIP)中的两个已被证明在造血祖细胞中过表达,并且这种过表达与JAK2,MPL和CALR中的经典突变配合以产生MPN表型。 因此,对于MPN患者来说,700 kb种系重复的存在是不良预后。 本发明公开了一种用于检测发展MPN的易感性的方法,以及用于评估患有ET的患者将发展为骨髓纤维化,二级MDS或AML的可能性的预后方法。 还公开了延缓MPN恶化的治疗方法,所述治疗方法涉及抑制ATG2B和GSKIP重复基因。