Inhibition of Rho A activity causes pemphigus skin blistering.

Inhibition of Rho A activity causes pemphigus skin blistering.
复制标题

DOI:
10.1083/jcb.200605125
复制
发表时间:
2006-12-04
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Drenckhahn D
Drenckhahn D
中科院分区:
其他
文献类型:
--
作者:
Waschke J;Spindler V;Bruggeman P;Zillikens D;Schmidt G;Drenckhahn D

文献摘要

参考文献

被引文献

相似文献

寻常型天疱疮(PV)和落叶型天疱疮(PF)的自身免疫性水疱性皮肤病主要由抗桥粒钙粘蛋白的自身抗体引起。在这项研究中,我们提供的证据表明,PV-免疫球蛋白G(IgG)和PF-IgG通过干扰Rho A信号转导诱导皮肤起泡。在体外,天疱疮IgG引起天疱疮发病机制的典型标志,如人皮肤中的表皮起泡、细胞解离和通过激光镊子探测的桥粒芯糖蛋白1(Dsg 1)介导的结合的丧失。这些变化伴随着干扰Rho A激活和Rho A活性的降低。天疱疮IgG触发的角质形成细胞解离和Rho A失活是p38丝裂原活化蛋白激酶依赖性的。细胞毒性坏死因子-γ特异性激活Rho A可消除所有天疱疮引发的效应,包括角蛋白收缩和Dsg 3从细胞骨架中释放。这些数据表明,Rho A参与调节桥粒粘附,至少部分通过维持桥粒蛋白的细胞骨架锚定。这可能打开了用Rho A激动剂的表皮应用治疗天疱疮的可能性。
The autoimmune blistering skin diseases pemphigus vulgaris (PV) and pemphigus foliaceus (PF) are mainly caused by autoantibodies against desmosomal cadherins. In this study, we provide evidence that PV–immunoglobulin G (IgG) and PF-IgG induce skin blistering by interference with Rho A signaling. In vitro, pemphigus IgG caused typical hallmarks of pemphigus pathogenesis such as epidermal blistering in human skin, cell dissociation, and loss of desmoglein 1 (Dsg 1)–mediated binding probed by laser tweezers. These changes were accompanied by interference with Rho A activation and reduction of Rho A activity. Pemphigus IgG–triggered keratinocyte dissociation and Rho A inactivation were p38 mitogen-activated protein kinase dependent. Specific activation of Rho A by cytotoxic necrotizing factor-y abolished all pemphigus-triggered effects, including keratin retraction and release of Dsg 3 from the cytoskeleton. These data demonstrate that Rho A is involved in the regulation of desmosomal adhesion, at least in part by maintaining the cytoskeletal anchorage of desmosomal proteins. This may open the possibility of pemphigus treatment with the epidermal application of Rho A agonists.
DOI: 10.1074/jbc.m501365200
发表时间: 2005-06-24
影响因子: 4.8
作者:
Berkowitz, P;Hu, PQ;Rubenstein, DS
通讯作者: Rubenstein, DS
DOI: 10.1152/ajpheart.00687.2004
发表时间: 2005-03-01
影响因子: 4.8
作者:
Waschke, J;Curry, FE;Drenckhahn, D
通讯作者: Drenckhahn, D
DOI: 10.1007/s00418-005-0080-2
发表时间: 2006-04-01
影响因子: 2.3
作者:
Waschke, J;Burger, S;Adamson, RH
通讯作者: Adamson, RH
DOI: 10.1016/0092-8674(91)90360-b
发表时间: 1991-11-29
期刊: CELL
影响因子: 64.5
作者:
AMAGAI, M;KLAUSKOVTUN, V;STANLEY, JR
通讯作者: STANLEY, JR
DOI: 10.1111/1523-1747.ep12606168
发表时间: 1995-06-01
影响因子: 6.5
作者:
AMAGAI, M;HASHIMOTO, T;NISHIKAWA, T
通讯作者: NISHIKAWA, T