Summary

大鼠肾移植后急性排斥反应的非侵入性的成像使用<sup> 18</sup> F-FDG PET

Published: April 28, 2013
doi:

Summary

在此,我们提出了一个大鼠肾移植模型,以非侵入性评估急性排斥反应,用18F-脱氧葡萄糖正电子发射断层扫描。

Abstract

终末期肾脏疾病患者,肾移植的数量不断增加。发作的急性细胞移植排斥反应(AR)是一种消极的长期移植存活的预后因素,及时诊断是至关重要的移植肾功能1。目前,AR只能被确诊核心穿刺活检,其中,作为一种侵入性的方法,移植伤害甚至丧失露出显着的风险。此外,活检是不可行的患者服用抗凝药物和有限的采样点,这种技术可能会导致假阴性结果,当AR局灶性或片状。作为一个结果,这产生了一个持​​续的搜索新的AR的检测方法,包括使用各种移植模型的动物中,经常有许多工作要做。

由于60年代初大鼠肾移植是一种行之有效的实验方法为考试系统AR 2的振动性和分析。在此,我们除了小动物正电子发射断层扫描(PET)使用18架F-脱氧葡萄糖(FDG)评估AR单侧肾切除大鼠同种异体肾移植模型,并提出移植FDG-PET成像作为一种非侵入性的,具体的新选项和早期诊断的AR 3人的情况。此外,这种方法可应用于后续提高移植排斥反应的监测,4。

Protocol

1。捐赠者的器官恢复立体显微镜,记录重量8-10周龄大鼠(捐赠者和接受者体重应该匹配)。 麻醉供体鼠(刘易斯·布朗挪威F1,F1 LBN)使用氧气/异氟醚吸入异氟醚4%/ 2升/分钟氧气。 2-2.5%降低异氟醚维持麻醉。 将大鼠麻醉手术垫。修复大鼠的四肢用胶带将垫和申请眼科的软膏(Bepanthen,拜耳)大鼠的眼睛。 刮脸和大鼠腹部消毒,并执行下腹正中切口从耻骨尾边境?…

Representative Results

组织学 即主要是T淋巴细胞在AR白细胞,被招募到移植的排斥反应的严重程度,而被反射炎症的程度。在周期酸希夫染色(PAS)这里描绘( 图1),肾移植显示显着的病理体征,即肾小球肾炎,小管炎,内皮炎和移植物浸润( 图1,ATX POD4)(POD =术后一天AR)而拒绝的迹象都没有在本地控制肾( 图1,CTR),移植物浸润细胞是高度消耗?…

Discussion

FDG-PET成像急性排斥反应的诊断是一个新的选择。由于其非侵入性和具体性,FDG-PET是古典针芯活检诊断比较优势。在一个切片检查,FDG-PET分析整个移植到有限的样本大小。此外,人们可以将它应用抗凝治疗的患者,可以进行重复例如 PET措施来监测治疗效率4。此外,我们已经表明两个主要可以区分开的鉴别诊断,即急性肾小管坏死引起的缺血再灌注损伤和急性calcineurin抑制剂毒性,…

Divulgations

The authors have nothing to disclose.

Acknowledgements

支持这项工作是由德意志研究联合会(SFB 656,明斯特,德国,C7和C6项目)和IZKF的明斯特(核心单元SMAP)。作者感谢特鲁茨范乐,安妮Kanzog,乌特纽格伯尔,Wiebke Gottschlich和罗马PRIEBE的优良的技术援助和生产放射性示踪剂丹尼尔布尔克特和Sven Fatum。

Materials

Equipment
Mathieu Needle Holder – 14 cm Fine Science Tools 12010-14
Castroviejo Micro Needle Holder – 9 cm Fine Science Tools 12061-01
Surgical Scissors – Sharp_Blunt Fine Science Tools 14001-12
Iris Scissors – ToughCut Straight 11.5 cm Fine Science Tools 14058-11
Student Vannas Spring Scissors Fine Science Tools 91500-09
Vannas Spring Scissors – 3 mm Blades Fine Science Tools 15000-00
Student Tissue Forceps – 1×2 Teeth 12 cm Fine Science Tools 91121-12
Dumont SS-45 Forceps – Inox Medical Fine Science Tools 11203-25
Micro-Serrefine Clip Applicator with Lock Fine Science Tools 18056-14
Micro-Serrefine 6 mm x 1 mm Fine Science Tools 18055-03
Micro-Serrefine 4 mm x 0.75 mm Fine Science Tools 18055-04
Reagent
Isoflurane (e.g. Forene 100% v/v) Abott
cutane antiseptic (e.g. Octeniderm) Schülke
Povidone Iodine (e.g. Betaisodona) Mundipharma
ophthalmic ointment (e.g. Bepanthen) Bayer
Buprenorphin (e.g. Temgesic) RB Pharmaceuticals
HTK perfusion solution (e.g. CUSTODIOL HTK) Dr. Franz Köhler Chemie
surgical thread Mersilene 0 Ethicon EH6665E
surgical thread Mersilene 4-0 Ethicon EH6732H
surgical thread Prolene 6-0 Ethicon 8697H
surgical thread Ethilon 9-0 Ethicon 2809G
surgical silk 5-0 Vömel 14739
Canula (e.g. Microlance 3, 27G ¾) BD 302200

References

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Grabner, A., Kentrup, D., Schnöckel, U., Gabriëls, G., Schröter, R., Pavenstädt, H., Schober, O., Schlatter, E., Schäfers, M., Reuter, S. Non-invasive Imaging of Acute Allograft Rejection after Rat Renal Transplantation Using 18F-FDG PET. J. Vis. Exp. (74), e4240, doi:10.3791/4240 (2013).

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