Confocal laser scanning analysis of the association of fibulin-2 with fibrillin-1 and fibronectin define different stages of skin regeneration.

Confocal laser scanning analysis of the association of fibulin-2 with fibrillin-1 and fibronectin define different stages of skin regeneration.
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对 fibulin-2 与 fibrillin-1 和纤连蛋白关联的共聚焦激光扫描分析定义了皮肤再生的不同阶段。

DOI:
10.1046/j.1523-1747.1999.00483.x
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发表时间:
1999
期刊:
The Journal of investigative dermatology
影响因子:
--
通讯作者:
Timpl,R
Timpl,R
中科院分区:
--
文献类型:
--
作者:
Raghunath,M;Tschödrich-Rotter,M;Sasaki,T;Meuli,M;Chu,ML;Timpl,R

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纤维蛋白是一个新的细胞外基质蛋白家族。我们报告了fibulin-2在自体角质形成细胞移植皮肤再生中的时空表达。在正常真皮中,除了紧邻真皮-表皮交界处的部分外,fibulin-2与含fibulin的微纤维装置相关。与此相反,早期再生真皮显示出许多梭形纤维蛋白微纤维沿着基底膜,而fibulin-2存在于下面的一个明显的和单独的层。这两种蛋白质形成独立的原纤维系统也在网状真皮没有显着的共定位,但是,随着时间的推移,两个原纤维系统变得一致:4个月后,有广泛的共定位的fibulin-2/fibulin在网状真皮,17和24个月后,这也发生在乳头状真皮。fibulin-2和纤连蛋白的同时可视化显示了相反的模式:在移植后7天完全共定位和不一致的分布17-24个月。特别是,在早期时间点的纤维状纤连蛋白模式改变为整个真皮和沿着基底膜下区域的微弱颗粒状分布,如正常皮肤。真皮成纤维细胞培养表明,纤维蛋白和纤连蛋白参与不同的纤维系统,然而,fibulin-2共定位与任一蛋白质。我们建议,在再生皮肤,fibulin-2是一个较早存在于纤维连接蛋白介导的纤维基质中的皮肤微纤维装置的晚期成分。这表明纤连蛋白-2与纤连蛋白原纤维和纤连蛋白微纤维的相互作用,并且在体外结合数据内是一致的。
The fibulins represent a novel family of extracellular matrix proteins. We report the temporo-spatial expression of fibulin-2 in skin regenerating from keratinocyte autografts. In normal dermis, fibulin-2 was associated with the fibrillin-containing microfibrillar apparatus, except for the portion immediately adjacent to the dermo–epidermal junction. In contrast, early regenerating dermis showed numerous fusiform fibrillinmicrofibrils along the basement membrane, whereas fibulin-2 was present in a distinct and separate layer below. Both proteins formed independent fibrillar systems also in the reticular dermis without significant colocalization; however, over time both fibril systems became congruent: after 4 mo there was extensive colocalization of fibulin-2/fibrillin in the reticular dermis, after 17 and 24 mo this also occurred in the papillary dermis. Simultaneous visualization of fibulin-2 and fibronectin revealed an inverse pattern: complete colocalization at 7 d and discordant distribution 17–24 mo after grafting. In particular, the fibrillar fibronectin pattern at early time points changed into a faint granular distribution throughout the dermis and along the subbasement membrane region as in normal skin. Dermal fibroblast cultures showed that fibrillin and fibronectin participated in distinct fibrillar systems; however, fibulin-2 colocalized with either protein. We propose that, in regenerating skin, fibulin-2 is a late component of the cutaneous microfibrillar apparatus with an earlier existence in a fibrillar matrix mediated by fibronectin. This suggests interaction of fibulin-2 with both fibronectin fibrils and fibrillin microfibrils, and is consistent within vitrobinding data.
弹性微原纤维中原纤维蛋白分子的排列是由转谷氨酰胺酶衍生的交联决定的。
DOI: --
发表时间: 1997
期刊: Biochemistry
影响因子: 2.9
作者:
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成纤维细胞表达 fibulin-2 并与纤连蛋白一起沉积到纤维基质中。
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发表时间: 1996
影响因子: 4
作者:
Sasaki,T;Wiedemann,H;Matzner,M;Chu,ML;Timpl,R
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Fibulin-2 (FBLN2):人类 cDNA 序列、mRNA 表达以及该基因在人类和小鼠染色体上的定位。
DOI: 10.1006/geno.1994.1404
发表时间: 1994
期刊: Genomics
影响因子: 4.4
作者:
Zhang,RZ;Pan,TC;Zhang,ZY;Mattei,MG;Timpl,R;Chu,ML
通讯作者: Chu,ML
细胞外基质蛋白 fibulin-2 在胚胎心内膜垫组织中表达,是成人心脏瓣膜的重要组成部分。
DOI: 10.1006/dbio.1995.1003
发表时间: 1995
期刊: Developmental biology.
影响因子: --
作者:
Zhang,HY;Chu,ML;Pan,TC;Sasaki,T;Timpl,R;Ekblom,P
通讯作者: Ekblom,P
DOI: 10.1046/j.1523-1747.1998.00188.x
发表时间: 1998
期刊: The Journal of investigative dermatology.
影响因子: --
作者:
Uitto,J;Boyd,CD;Lebwohl,MG;Moshell,AN;Rosenbloom,J;Terry,S
通讯作者: Terry,S