Summary

细菌性前列腺炎小鼠模型的测量触觉异常

Published: January 16, 2013
doi:

Summary

在调解盆腔疼痛慢性前列腺炎前列腺感染可能是一个促进因素。我们的程序编制标准化的细菌接种的细菌进入尿道的雄性小鼠和方法测量触觉异常的小鼠,随着时间的推移,滴入。

Abstract

致肾盂肾炎大肠杆菌 (UPEC)是病原体中发挥了重要的作用,尿路感染和细菌性前列腺炎1。最近,我们已经显示,UPEC有重要的作用开始在慢性盆腔疼痛2,功能的慢性前列腺炎/慢性盆腔疼痛综合征(CP / CPPS)3,4。感染前列腺的临床相关UPEC可以发起和建立慢性疼痛的机制可能涉及组织损伤和5的自身免疫机制的启动。

了解的统一企业在前列腺癌的发病机制是一个挑战,相对交通不便的前列腺操作。我们利用先前描述的尿道感染的方法提供临床株UPEC雄性小鼠,从而建立一个上行性感染的前列腺。在这里,我们描述的协议规范BActerial接种7以及滴注细菌置管麻醉的雄性小鼠的程序。

CP / CPPS的主要特征是由触觉异常4的存在下。行为测试是基于皮肤痛觉过敏的概念称为内脏痛8-10。易怒集中在内脏器官,减少皮肤的痛阈值,允许夸张的反应,正常的非疼痛刺激(痛觉超敏)。正常的力中的应用皮肤导致异常反应,往往增加与强度的底层的内脏痛。我们描述在的NOD / ShiLtJ小鼠,利用von弗雷纤维中的量化触觉异常性疼痛的随着时间的推移,在响应于一个单一的UPEC细菌感染的方法。

Protocol

1。小鼠接种细菌的准备工作以下,必须在无菌条件下完成。 拿一个17×100毫米聚丙烯管帽和加入3毫升的新鲜Luria培养基(LB)媒体。使用蒸压提示,采取一些冷冻的细菌甘油CP1 2株,少量的文化转移到管中的LB培养基。更换的管帽,这样的氧气仍然可以进入管 – 文化需要在有氧条件下生长。将管在37℃下摇床中在220rpm过夜。 第二天,5微升过夜培养物转移?…

Representative Results

我们审查NOD / ShiLtj的C57BL/6J雄性小鼠的存在细菌感染后的慢性疼痛。雄性小鼠(5至7周龄),用生理盐水或细菌进入尿道( 图1),灌输。机械性刺激导致的骨盆区,用von Frey细丝的生理盐水注入小鼠和UPEC感染的小鼠在28天的试验过程中( 图1)的响应频率并没有改变。 UPEC感染的NOD小鼠表现出与此相反,是显着更大的盆腔刺激的反应仍然显着升高,直到第28天(P <0.05…

Discussion

感染的小鼠前列腺UPEC允许为在体内建模可能涉及在细菌性前列腺炎的发病机制中,CP / CPPS或作为慢性炎症的诱发事件的事件。 UPEC模型描述的方法对细菌制剂和滴注战平后,庞大的身躯文学中女性尿路感染7,14。该模型具有广泛的适用性研究发病机制,检测潜在的候选疫苗和免疫调节机制。疼痛行为的能力,按照可量化的方式使感染引起的疼痛发病机制的研究,并有可能作为测试疼?…

Offenlegungen

The authors have nothing to disclose.

Acknowledgements

这项研究是由美国国立卫生研究院/ NIDDK由授予1K01DK079019A2(PT)。

Materials

Name of the reagent Company Catalogue number
Culture tubes BD Falcon 352059
LB Broth Miller EMD EM1.10285.0500
Nalgene Centrifuge Tubes Thermo 3118-0050
Isoflurane Butler Schein NDC 11695-6776-1
Catheter needle 30G Hamilton 91030
PE10 tubing BD intramedic 427400
Von Frey Filaments Stoelting 58025-31

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Quick, M. L., Done, J. D., Thumbikat, P. Measurement of Tactile Allodynia in a Murine Model of Bacterial Prostatitis. J. Vis. Exp. (71), e50158, doi:10.3791/50158 (2013).

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