TGF-β1-induced phospholamban expression alters esophageal smooth muscle cell contraction in patients with eosinophilic esophagitis.

TGF-β1-induced phospholamban expression alters esophageal smooth muscle cell contraction in patients with eosinophilic esophagitis.
复制标题

DOI:
10.1016/j.jaci.2014.04.004
复制
发表时间:
2014-11
影响因子:
14.2
通讯作者:
Aceves, Seema S.
Aceves, Seema S.
中科院分区:
医学1区
文献类型:
--
作者:
Beppu, Lisa Y.;Anilkumar, Arjun A.;Newbury, Robert O.;Dohil, Ranjan;Broide, David H.;Aceves, Seema S.

文献摘要

参考文献

被引文献

相似文献

嗜酸性粒细胞性食管炎(EoE)是一种慢性抗原介导的疾病,其特征为食管嗜酸性粒细胞增多、重塑和纤维化。 TGFβ1 是 EoE 重塑的中心调节因子,可增加食管平滑肌细胞的收缩。在本研究中,我们旨在了解TGFβ1诱导食管平滑肌细胞收缩的分子机制。我们使用原代人食管平滑肌 (ESM) 细胞和 EoE 肌成纤维细胞 (EMF) 来评估 TGFβ1 诱导收缩的机制。我们分析了受磷蛋白 (PLN) 的表达、磷酸化和功能,PLN 是一种由 TGFβ1 诱导的肌内质网调节蛋白。分析了 EoE 和对照活检食管平滑肌中 PLN、磷酸化 PLN 的表达及其调节途径。利用 EoE EMF 中的基因沉默来了解 PLN 在收缩中的作用。 TGFβ1 在原代人 ESM 和 EoE EMF 中诱导并磷酸化 PLN。与体内对照受试者平滑肌相比,EoE 中的 PLN 和磷酸化 PLN 升高。 PLN 抑制显着减弱 TGFβ1 诱导的 EoE EMF 收缩。 PLN 表达和 ESM/EMF 收缩取决于 TGFβ 受体 I 信号。我们描述了一种以前未被认识的食管平滑肌细胞收缩机制,该机制依赖于 TGFβ1、其受体和 PLN。由于 PLN 在 EoE 平滑肌中升高,并且 PLN 沉默会减少收缩,因此我们为 EoE 食管平滑肌功能障碍提供了一种新的潜在机制框架和治疗靶点。
Eosinophilic esophagitis (EoE) is a chronic antigen mediated disease characterized by esophageal eosinophilia, remodeling, and fibrosis. TGFβ1 is a central regulator of EoE remodeling and increases esophageal smooth muscle cell contraction. In this study, we aimed to understand the molecular mechanisms by which TGFβ1 could induce esophageal smooth muscle cell contraction. We used primary human esophageal smooth muscle (ESM) cells and EoE myofibroblasts (EMF) to assess the mechanisms of TGFβ1-induced contraction. We analyzed the expression, phosphorylation, and function of phospholamban (PLN), a sarcoendoplasmic reticulum regulatory protein which was induced by TGFβ1. Expression of PLN, phospho-PLN, and its regulatory pathway was analyzed in the esophageal smooth muscle of EoE and control biopsies. Gene silencing in EoE EMFs was utilized to understand the role of PLN in contraction. TGFβ1 induced and phosphorylated PLN in primary human ESM and EoE EMFs. PLN and phospho-PLN were elevated in EoE as compared to control subject smooth muscle in vivo. PLN inhibition significantly diminished TGFβ1 induced EoE EMF contraction. PLN expression and ESM/EMF contraction depended on TGFβ receptor I signals. We describe a previously unrecognized mechanism for esophageal smooth muscle cell contraction that depends on TGFβ1, its receptors, and PLN. Since PLN is elevated in EoE smooth muscle and PLN silencing diminishes contraction, we provide a novel potential mechanistic framework and therapeutic target for esophageal smooth muscle dysfunction in EoE.
DOI: 10.1016/j.gie.2013.10.027
发表时间: 2014-04
影响因子: 7.7
作者:
Dellon ES;Kim HP;Sperry SL;Rybnicek DA;Woosley JT;Shaheen NJ
通讯作者: Shaheen NJ
DOI: 10.1136/gut.2008.168146
发表时间: 2009-08-01
期刊: GUT
影响因子: 24.5
作者:
Korsapati, H.;Babaei, A.;Mittal, R. K.
通讯作者: Mittal, R. K.
DOI: 10.1152/physiolgenomics.00044.2006
发表时间: 2006-10-11
影响因子: 4.6
作者:
McGraw, Dennis W.;Fogel, Kevin M.;Liggett, Stephen B.
通讯作者: Liggett, Stephen B.
DOI: 10.1073/pnas.0510519103
发表时间: 2006-01-31
影响因子: 11.1
作者:
Haghighi, K;Kolokathis, F;Kranias, EG
通讯作者: Kranias, EG
DOI: 10.1152/ajpcell.00452.2008
发表时间: 2009-04-01
影响因子: 5.5
作者:
Camello-Almaraz, Cristina;Macias, Beatriz;Pozo, Maria J.
通讯作者: Pozo, Maria J.