长链非编码RNA在造血系统中的研究进展

长链非编码 RNA（lncRNA）可在遗传水平、转录水平、转录后水平等多层面上通过多种机制调控基因表达,参与生理、病理过程,与多种人类重大疾病关系密切。 lncRNA 在造血细胞成熟、分化过程中也起重要的调控作用,深入探索其作用机制可为血液疾病的诊治提供新思路。     

Histone demethylase LSD1 controls the phenotypic plasticity of cancer cells

Epigenetic mechanisms underlie the phenotypic plasticity of cells, while aberrant epigenetic regulation through genetic mutations and/or misregulated expression of epigenetic factors leads to aberrant cell fate determination, which provides a foundation for oncogenic transformation. Lysine‐specific demethylase‐1 (LSD1, KDM1A) removes methyl groups from methylated proteins, including histone H3, and is frequently overexpressed in various types of solid tumors and hematopoietic neoplasms. While LSD1 is involved in a wide variety of normal physiological processes, including stem cell maintenance and differentiation, it is also a key player in oncogenic processes, including compromised differentiation, enhanced cell motility and metabolic reprogramming. Here, we present an overview of how LSD1 epigenetically regulates cellular plasticity through distinct molecular mechanisms in different biological contexts. Targeted inhibition of the context‐dependent activities of LSD1 may provide a highly selective means to eliminate cancer cells.