核内外膜、核孔复合体、核膜整合蛋白与核膜下紧密连接的核纤层蛋白,在细胞核内形成网状的核质网(nucleoplasmic reticulum,NR)。NR作为独立的功能单元,其不仅是包裹核质的膜结构,以维持核内环境的相对稳定性,而且还具有其他多种重要功能。本文就NR的结构、功能及其在心肌系统中发挥的作用作一简要综述。 Nuclear inner and outer membrane, nuclear pore complex, nuclear membrane integrin and nuclear membrane under the close connection of the nuclear lamin protein in the nucleus to form reticular nucleoplasmic nucleus (nucleoplasmic reticulum, NR). As an independent functional unit, NR is not only a membranous structure that surrounds the nuclei, but also maintains many other important functions in order to maintain the relative stability of the nuclear environment. This review summarizes the structure and function of NR and its role in myocardial system.