Identification of the human mature B cell miRNome.
Identification of the human mature B cell miRNome.
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DOI:
10.1016/j.immuni.2009.03.017
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发表时间:
2009-05
期刊:
影响因子:
32.4
通讯作者:
Dalla-Favera, Riccardo
中科院分区:
文献类型:
--
作者:
Basso, Katia;Sumazin, Pavel;Morozov, Pavel;Schneider, Christof;Maute, Roy L.;Kitagawa, Yukiko;Mandelbaum, Jonathan;Haddad, Joseph, Jr.;Chen, Chang-Zheng;Califano, Andrea;Dalla-Favera, Riccardo
The full set of microRNAs (miRNAs) in the human genome is not known. Because presently known miRNAs have been identified by virtue of their abundant expression in a few cell types, many tissue-specific miRNAs remain unrevealed. To understand the role of miRNAs in B-cell function and lymphomagenesis, we generated short-RNA libraries from normal human B cells at different stages of development (naïve, germinal-center, memory) and from a Burkitt lymphoma cell-line. A combination of cloning and computational analysis identified 178 miRNAs (miRNome) expressed in normal and/or transformed B-cell libraries. Most notably, the B-cell miRNome included 75 miRNAs which to our knowledge have not been previously reported and of which 66 have been validated by RNA blot and/or RT-PCR analyses. Numerous miRNAs were expressed in a stage- or transformation-specific fashion in B cells, suggesting specific functional or pathologic roles. These results provide a resource for studying the role of miRNAs in B-cell development, immune function, and lymphomagenesis.
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