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Abdolrahim Ahmadi,Saeid Kaviani,Marjan Yaghmaie,Hossein Pashaiefar,Mohammad Ahmadvand,Mahdi Jalili,Kamran Alimoghaddam,Mohammad Eslamijouybari,Ardeshir Ghavamzadeh 대한혈액학회 2018 Blood Research Vol.53 No.4
BackgroundRecent studies have devoted much attention to non-protein-coding transcripts in relation to a wide range of malignancies. MALAT1, a long non-coding RNA, has been reported to be associated with cancer progression and prognosis. Thus, we here determined MALAT1 gene expression in chronic lymphocytic leukemia (CLL), a genetically heteroge-neous disease, and explored its possible relationships with cytogenetic abnormalities.MethodsMALAT1 expression level was evaluated using real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) on blood mononuclear cells from 30 non-treated CLL patients and 30 matched healthy controls. Cytogenetic abnormalities were de-termined in patients by fluorescence in situ hybridization (FISH).ResultsMALAT1 expression level was up-regulated in the CLL group compared to healthy controls (P=0.008). Del13q14, followed by Del11q22, were the most prevalent cytogenetic abnormalities. We found no association between the FISH results and MALAT1 ex-pression in patients.ConclusionAltered expression of MALAT1 is associated with CLL development. Further investigations are required to assess the relationship between this long non-coding RNA and CLL patient survival and prognosis.