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Sci Rep:系统性硬化症胃黏膜凋亡和增殖因子的表达与疾病类型有关

2019-12-10 xiangting MedSci原创

这项研究数据表明sys1是SSc最“活跃”的增殖形式。Sys2特征是胶原蛋白沉积、表面上皮缺陷、广泛的凋亡和低增殖、GM萎缩和功能丧失。

尽管系统性硬化症患者(SSc)中病的患病率很高,但人们对其发病机理仍知之甚少。

研究人员通过免疫组化分析了5名对照和15名不同形式SSc患者的黏膜活检(GM):局灶性皮肤病(lc)、中度弥漫性皮肤病(sys1)和重度弥漫性皮肤病(sys2)。通过Kruskall-Wallis检验分析阳性细胞数,P<0.05被认为具有统计学意义。

sys1患者的增殖细胞(Ki-67阳性)百分比最高(表层的3%,GM较深部分的4.6%),sys2患者降至1%。对照组α-平滑肌肌动蛋白(α-SMA)阳性细胞的百分比为5%,占表层GM9%,而sys1sys2患者较深GM的阳性细胞从7%升至19%,从而表明成肌纤维细胞数量增加。在sys1患者中,Caspase-3阳性凋亡细胞占对照组的1.5–2%,浅表的8%和深层GM6%。在sys2中,凋亡影响了50%的表面上皮细胞和腺细胞以及30%的较深腺体,并与纤维化增加和多配体蛋白聚糖-1表达降低相关。

这项研究数据表明sys1SSc活跃的增殖形式。Sys2特征是胶原蛋白沉积、表面上皮缺陷、广泛的凋亡和低增殖、GM萎缩和功能丧失。

原始出处:

Katarina Boric. Expression of apoptotic and proliferation factors in gastric mucosa of patients with systemic sclerosis correlates with form of the disease. Sci Rep. 05 December 2019.

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    2020-10-03 baoya
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    2019-12-12 一个字-牛

    学习了谢谢分享

    0

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    2019-12-12 snowpeakxu
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