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Journal of Experimental Hematology ; (6): 1416-1423, 2019.
Article in Chinese | WPRIM | ID: wpr-775705

ABSTRACT

OBJECTIVE@#To investigate the IL-7R gene mutation and clinical features of adult patients with acute lymphoblastic leukemia (ALL).@*METHODS@#One hundred sixty-four cases of newly treated adults with ALL from May 2016 to December 2018 were selected. Targeted and specific next-generation sequencing technology was used to detected a total of 16 types of Ph-like ALL mutations, which include IL-7R mutation, and the cilinical features, rate, types and sites of IL-7R were analyzed.@*RESULTS@#IL-7R mutation was determined in 10 cases of 164 adult patients with ALL and the total mutation frequency was 13 times (6.1%). Out of 10 cases 5 cases were male (50%), 5 cases were female (50%). 6 cases of B-ALL ( 60% ) and 4 cases of T-ALL (40%). The mutation site of all cases was located at exon 6, among which 6 cases had replacement mutations, 3 cases had deletion mutations and 4 cases had insertion mutations. In addition, 1 triple and 1 double mutation of IL-7R were found. Besides, six mutation sites were newly identified, including: c.720_724del, c.723_726del, c.721_722insAGTG, c.727_728insTAACGGCCCCCTGCT, c.727_728insATGCAGGGAGCGAA and c.728_729insAAGTGTCA.@*CONCLUSION@#Six novel mutation sites and a poor manifestation of IL-7R have been explored in this research. Thus more samples are required to study the effects of IL-7R mutation on ALL treatment.


Subject(s)
Adult , Female , Humans , Male , Interleukin-7 Receptor alpha Subunit , Genetics , Mutation , Precursor Cell Lymphoblastic Leukemia-Lymphoma , Signal Transduction
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