去卵巢对大鼠泪腺中IL-17A等炎症因子表达的影响

doi:10.3760/cma.j.issn.1674-845X.2014.09.003

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Abstract

Objective To study the expression of inflammatory factors IL-17A， IL-1β， IL-6 and TNF-α in the lachrymal glands of ovariectomized rats when the level of sex hormones changes. Methods This was an experimental study. Twenty healthy female SD rats were divided randomly into a control group （n=10） and an experimental group （n=10）. Ovariectomy was performed on the experimenal group， while a sham operation was performed on the control group. A Schirmer Ι test （SIT） and corneal fluorescence staining were performed on both groups before surgery and at 1， 2， and 3 months after surgery. The results were analyzed with the repeated measurement ANOVA. Acinar cells from the lacrimal glands were examined by HE staining. At the 3rd month， the concentrations of estrogen and androgen were measured by radiation immunoassay detection and were analyzed with independent sample t tests. The expressions of IL-17A， IL-1β， IL-6 and TNF-α were analyzed by immunohistochemical and Western blot methods with independent sample t tests. Results The concentration of estrogen and androgen in the experimental group decreased compared with the control group （t=-35.37， -12.13， P<0.01）. There were no differences between the control group and the experimental group for the SIT and corneal fluorescence staining at each time point （P>0.05）. HE staining showed that the enzymes of the original particles in the lachrymal cells were significantly reduced while acinar atrophy and cell arrangement disorder were observed in the experimental group. Immunohistochemical analysis showed that the expression of inflammatory factors in the lachrymal glands was significantly higher in the experimental group compared with those in the control group （A value： IL-17A： t=7.56， P<0.01， IL-1β： t=13.71， P<0.01， IL-6： t=13.92， P<0.01， TNF-α： t=6.11， P<0.01）. Western blot analysis showed that the expression levels of inflammatory factors in the lachrymal glands were significantly higher in the experimental group compared with those in the control group （A value： IL-17A： t=20.90， P<0.01， IL-1β： t=16.93， P<0.01， IL-6： t=12.46， P<0.01， TNF-α： t=14.47， P<0.01）. Conclusion The levels of estrogen and androgen in the experimental group dropped at the 3rd month postoperatively but there were no obvious clinical signs found on the ocular surface. The expression of inflammatory factors， such as IL-17A， IL-1β， IL-6 and TNF-α， increased in the lachrymal glands of ovariectomized rats.

Key words： Ovariectomized rat Lachrymal apparatus Interleukin-17A Interleukin-1β Interleukin-6 Tumor necrosis factor-alpha

Received: 03 April 2014

Corresponding Authors: Zhang Xiaofeng，Email：zhangxiaofeng@suda.edu.cn

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	Zhong Lei
	Zhang Xiaofeng
	Xia Jing
	Xia Wei
	Sun Zhengtai
	Wang Yingming

Cite this article:

Zhong Lei,Zhang Xiaofeng,Xia Jing等. Expression of IL-17A in the lachrymal glands of rats after ovariectomy[J]. Chinese Journal of Optometry Ophthalmology and Visual science, 2014, 16(9): 522-526.

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https://www.cjoovs.com/EN/10.3760/cma.j.issn.1674-845X.2014.09.003 OR https://www.cjoovs.com/EN/Y2014/V16/I9/522

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