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논문 기본 정보

자료유형
학술저널
저자정보
Weimin Wang (The First Affiliated Hospital of Zhengzhou University) Feifei Wu (The First Affiliated Hospital of Zhengzhou University) Ping Ma (Children’s Hospital Affiliated of Zhengzhou University) Silin Gan (The First Affiliated Hospital of Zhengzhou University) Xue Li (The First Affiliated Hospital of Zhengzhou University) Li Chen (The First Affiliated Hospital of Zhengzhou University) Ling Sun (The First Affiliated Hospital of Zhengzhou University) Hui Sun (The First Affiliated Hospital of Zhengzhou University) Zhongxing Jiang (Zhengzhou University) Feng Guo (Zhengzhou University)
저널정보
한국분자세포생물학회 Molecules and Cells Molecules and Cells 제43권 제8호
발행연도
2020.1
수록면
718 - 727 (10page)

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The imbalance between the proliferation and apoptosis of B-cell precursors is an important contributor to the pathogenesis of B-cell precursor acute lymphoblastic leukemia (BCP-ALL), while its specific regulatory mechanism remains perplexing. This study aimed to expound the underlying mechanism of the proliferation and apoptosis of BCP-ALL cells from the perspective of non-coding RNA. In this study, long non-coding RNA colorectal neoplasia differentially expressed (LncRNA CRNDE) was upregulated in the bone marrow of BCP-ALL patients and BCP-ALL cell lines (NALM-6 and RS4;11). Functionally, LncRNA CRNDE knockdown restrained cell proliferation and boosted cell apoptosis in NALM-6 and RS4;11 cells. The subsequent investigation confirmed that LncRNA CRNDE bound to miR-345-5p and negatively regulated miR-345-5p expression. The overexpression of miR-345-5p suppressed cell proliferation and boosted cell apoptosis in NALM-6 and RS4;11 cells. Further experiments revealed that miR-345-5p downregulated cyclic AMP response element-binding protein (CREB) expression by targeting its mRNA directly. CREB overexpression reversed the effect of miR-345-5p mimic on cell proliferation and apoptosis in NALM-6 and RS4;11 cells. Finally, in vivo experiments showed that LncRNA CRNDE knockdown prolonged the survival of mice xenotransplanted with NALM-6 cells. In conclusion, LncRNA CRNDE upregulated CREB expression by suppressing miR-345-5p, thus promoting cell proliferation and reducing cell apoptosis in BCP-ALL.

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