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
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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:
--
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发表时间:
1999
影响因子:
4
通讯作者:
E. H. Sage
中科院分区:
文献类型:
--
作者:
M. D. Gooden;Robert B. Vernon;James A. Bassuk;E. H. Sage
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.
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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
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
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
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
DOI:
10.1073/pnas.89.4.1281
发表时间:
1992-02-15
影响因子:
11.1
作者:
RAINES, EW;LANE, TF;SAGE, EH
通讯作者:
SAGE, EH