Cell cycle‐dependent nuclear location of the matricellular protein SPARC: Association with the nuclear matrix

Cell cycle‐dependent nuclear location of the matricellular protein SPARC: Association with the nuclear matrix
复制标题

基质细胞蛋白 SPARC 的细胞周期依赖性核定位:与核基质的关联

DOI:
--
复制
发表时间:
1999
影响因子:
4
通讯作者:
E. H. Sage
E. H. Sage
中科院分区:
生物学2区
文献类型:
--
作者:
M. D. Gooden;Robert B. Vernon;James A. Bassuk;E. H. Sage

文献摘要

参考文献

被引文献

相似文献

酸性和富含半胱氨酸的分泌蛋白(SPARC)是一种抑制细胞粘附和增殖的基质细胞蛋白。在本研究中,我们报道了SPARC在鸡胚胎细胞间期细胞核中的体内检测。在M期的不同阶段,这些细胞的细胞质中也发现了SPARC的差异分配:中期和后期的细胞表现出强烈的细胞质免疫反应性,而末期的细胞则没有标记。体外对鸡胚细胞的免疫细胞化学分析同样表明SPARC存在于细胞核中。此外,从这些细胞中洗脱的可溶性蛋白和DNA表明SPARC可能是核基质的一个组成部分。我们随后检查了培养的牛主动脉内皮细胞,最初似乎只在细胞质中表达SPARC。然而,在可溶性蛋白和染色质洗脱后,我们也在这些细胞的核基质中检测到SPARC。用重组SPARC孵育的鸡胚胎细胞在17小时内吸收了该蛋白并将其逐渐转移到细胞核。这些观察结果提供了关于SPARC的新信息,SPARC通常被认为是一种分泌的糖蛋白,介导细胞与细胞外基质组分之间的相互作用。本研究提供的证据表明,SPARC可能在核基质中具有类似的功能。j .细胞。生物化学学报,2004,24(4):559 - 567。©1999 Wiley‐Liss, Inc。
Secreted protein acidic and rich in cysteine (SPARC) is a matricellular protein that inhibits cellular adhesion and proliferation. In this study, we report the detection of SPARC in the interphase nuclei of embryonic chicken cells in vivo. Differential partitioning of SPARC was also noted in the cytoplasm of these cells during discrete stages of M‐phase: cells in metaphase and anaphase exhibited strong cytoplasmic immunoreactivity, whereas cells in telophase were devoid of labeling. Immunocytochemical analysis of embryonic chicken cells in vitro likewise showed the presence of SPARC in the nucleus. Furthermore, elution of soluble proteins and DNA from these cells indicated that SPARC might be a component of the nuclear matrix. We subsequently examined cultured bovine aortic endothelial cells, which initially appeared to express SPARC only in the cytoplasm. However, after elution of soluble proteins and chromatin, we also detected SPARC in the nuclear matrix of these cells. Embryonic chicken cells incubated with recombinant SPARC were seen to take up the protein and to translocate it to the nucleus progressively over a period of 17 h. These observations provide new information about SPARC, generally recognized as a secreted glycoprotein that mediates interactions between cells and components of the extracellular matrix. The evidence presented in this study indicates that SPARC might subserve analogous functions in the nuclear matrix. J. Cell. Biochem. 74:152–167, 1999. © 1999 Wiley‐Liss, Inc.
DOI: 10.1073/pnas.94.9.4446
发表时间: 1997-04-29
影响因子: 11.1
作者:
Nickerson, JA;Krockmalnic, G;Penman, S
通讯作者: Penman, S
使用共价连接的纳米金胰岛素对胰岛素易位到完整 H35 肝癌细胞的细胞质和细胞核中的电子显微镜可视化。
DOI: 10.1210/endo.136.7.7789307
发表时间: 1995
期刊: Endocrinology.
影响因子: --
作者:
Shah,N;Zhang,S;Harada,S;Smith,RM;Jarett,L
通讯作者: Jarett,L
核基质蛋白区分正常二倍体成骨细胞和骨肉瘤细胞。
DOI: --
发表时间: 1994
期刊: Cancer research
影响因子: 11.2
作者:
Bidwell,JP;Fey,EG;vanWijnen,AJ;Penman,S;Stein,JL;Lian,JB;Stein,GS
通讯作者: Stein,GS
SPARC 与内皮细胞的特异性相互作用是通过含有钙结合 EF 手的羧基末端序列介导的。
DOI: --
发表时间: 1993
期刊: The Journal of biological chemistry
影响因子: --
作者:
Yost,JC;Sage,EH
通讯作者: Sage,EH