Expression of collagen adhesion proteins and their association with the cytoskeleton in cardiac myocytes

Expression of collagen adhesion proteins and their association with the cytoskeleton in cardiac myocytes
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心肌细胞中胶原粘附蛋白的表达及其与细胞骨架的关系

DOI:
10.1002/ar.1092230110
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发表时间:
1989
期刊:
The Anatomical Record
影响因子:
--
通讯作者:
T. Borg
T. Borg
中科院分区:
--
文献类型:
--
作者:
L. Terracio;D. Gullberg;K. Rubin;S. Craig;T. Borg

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先前的研究已经表明,大鼠肝细胞上的特异性细胞表面糖蛋白(科尔)参与了肝细胞胶原的识别(Rubin等人,Exp.小区资源:164:127-138,1986)。使用抗科尔-CAM抗体进行的Western印迹分析显示,在不同发育阶段的大鼠心脏的去污剂提取膜中存在可变但有限数量(两种)的糖蛋白。使用针对这些胶原粘附蛋白的抗体,我们显示了在大鼠心脏的不同发育阶段和心脏肥大期间抗原的表达。这种表达通过对新生儿、正常成人和肥大成人心脏新鲜分离的肌细胞表面进行免疫组织化学染色进行形态学描述。针对科尔的抗体定位于心肌细胞的细胞表面,针对talin和黏着斑蛋白的抗体共定位于细胞内部的类似位置。当胶原蛋白合成高(新生儿和心脏肥大)时,抗体染色似乎增加,而当胶原蛋白合成低时,抗体染色似乎减少,如正常成人。这些结果表明,胶原粘附蛋白可能在心脏细胞外基质与细胞骨架的连接中发挥重要作用。
Previous investigations have shown that specific cell surface glycoproteins on rat hepatocytes (COLL‐CAM) are involved in the recognition of interstital collagens (Rubin et al., Exp. Cell Res., 164:127–138, 1986). Western blot analysis with anti‐COLL‐CAM antibodies revealed the presence of a variable but restricted number (two) of glycoproteins in detergent‐extracted membranes from rat hearts at various developmental stages. Using antibodies against these collagen adhesion proteins, we show an expression of the antigens during different developmental stages of the rat heart and during cardiac hypertrophy. This expression is described morphologically by immunohistochemical staining of cell surfaces of freshly isolated myocytes from neonates, normal adults, and hypertrophied adult hearts. Antibodies made against COLL‐CAM were localized on the cell surface of cardiac myocytes and antibodies against talin and vinculin co‐localized in a similar position on the inside of the cell. Antibody staining appears to be increased at times when collagen synthesis is high (neonate and cardiac hypertrophy) and low when collagen synthesis is low, as in the normal adult. These results indicate that collagen adhesion proteins may play an important role in linking the extracellular matrix to the cytoskeleton in the heart.
DOI: 10.1177/34.6.3084626
发表时间: 1986-06
期刊: The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society
影响因子: --
作者:
G. Wessel;D. McClay
通讯作者: G. Wessel;D. McClay
DOI: 10.1177/33.10.2413102
发表时间: 1985
期刊: The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society
影响因子: --
作者:
Wessendorf,MW;Elde,RP
通讯作者: Elde,RP
DOI: --
发表时间: 1983
期刊: Laboratory investigation; a journal of technical methods and pathology
影响因子: --
作者:
Robinson,TF;Cohen-Gould,L;Factor,SM
通讯作者: Factor,SM
DOI: --
发表时间: 1981
期刊: Laboratory investigation; a journal of technical methods and pathology
影响因子: --
作者:
Thomas K. Borg;Ranson Wf;F. Moslehy;James B. Caulfield
通讯作者: Thomas K. Borg;Ranson Wf;F. Moslehy;James B. Caulfield
DOI: 10.1126/science.2821619
发表时间: 1987-10-23
期刊: SCIENCE
影响因子: 56.9
作者:
RUOSLAHTI, E;PIERSCHBACHER, MD
通讯作者: PIERSCHBACHER, MD