Suppr超能文献

基于网络的微小病变病评估确定肾小球对IL-7和IL-12通路激活的反应为创新治疗靶点。

Network-Based Assessment of Minimal Change Disease Identifies Glomerular Response to IL-7 and IL-12 Pathways Activation as Innovative Treatment Target.

作者信息

Eikrem Øystein, Lillefosse Bjørnar, Delaleu Nicolas, Strauss Philipp, Osman Tarig, Vikse Bjørn Egil, Debiec Hanna, Ronco Pierre, Sekulic Miroslav, Koch Even, Furriol Jessica, Leh Sabine Maria, Marti Hans-Peter

机构信息

Department of Clinical Medicine, University of Bergen, 5020 Bergen, Norway.

Department of Medicine, Haukeland University Hospital, 5021 Bergen, Norway.

出版信息

Biomedicines. 2023 Jan 16;11(1):226. doi: 10.3390/biomedicines11010226.

Abstract

Minimal change disease (MCD), a major cause of nephrotic syndrome, is usually treated by corticosteroid administration. MCD unresponsiveness to therapy and recurrences are nonetheless frequently observed, particularly in adults. To explore MCD-related pathogenetic mechanisms and to identify novel drug targets ultimately contributing to novel therapeutic avenues with a certain specificity for MCD, we compared glomerular transcriptomes from MCD with membranous nephropathy (MN) patients and healthy controls. Renal biopsies from adult patients with MCD (n = 14) or MN (n = 12), and non-diseased controls (n = 8) were selected from the Norwegian Kidney Biopsy Registry. RNA for 75 base-pair paired-end RNASeq were obtained from laser capture micro-dissected (LCM) glomeruli from FFPE sections. Transcriptional landscapes were computed by combining pathway-centered analyses and network science methodologies that integrate multiple bioinformatics resources. Compared to normal glomeruli, cells from MCD displayed an inflammatory signature apparently governed by the IL1 and IL7 systems. While enrichment of IL1 production and secretion was a shared feature of MCD and MN compared to normal tissue, responses involving IL7 pathway activation were unique to MCD. Indeed, IL7R expressed by glomeruli was the most upregulated gene of the interleukin family in MCD versus normal controls. IL7 pathway activation was paralleled by significant enrichment in adaptive immune system processes and transcriptional regulation and depletion in pathways related to energy metabolism and transcription. Downregulation of these organ function-related themes again occurred predominately in MCD and was significantly less pronounced in MN. Immunofluorescence and immunohistochemistry, respectively, confirmed the expression of phosphorylated IL-7 receptor alpha (IL7RA, CD127) and IL12 receptor beta 1 (IL12RB1) proteins. Gene expression profiling of archival FFPE-biopsies identifies MCD-specific signatures with IL7RA and IL12RB1 as novel targets for MCD treatment.

摘要

微小病变病(MCD)是肾病综合征的主要病因,通常采用皮质类固醇给药治疗。然而,MCD对治疗无反应和复发的情况却经常出现,尤其是在成年人中。为了探索与MCD相关的发病机制,并确定最终有助于开发对MCD具有一定特异性的新治疗途径的新药物靶点,我们比较了MCD患者与膜性肾病(MN)患者及健康对照者的肾小球转录组。从挪威肾脏活检登记处选取了成年MCD患者(n = 14)或MN患者(n = 12)以及非患病对照者(n = 8)的肾活检组织。从FFPE切片的激光捕获显微切割(LCM)肾小球中获取用于75碱基对双端RNA测序的RNA。通过结合以通路为中心的分析和整合多种生物信息学资源的网络科学方法来计算转录图谱。与正常肾小球相比,MCD的细胞表现出明显受IL1和IL7系统调控的炎症特征。与正常组织相比,IL1产生和分泌的富集是MCD和MN的共同特征,而涉及IL7通路激活的反应则是MCD所特有的。事实上,肾小球表达的IL7R是MCD与正常对照相比白细胞介素家族中上调最明显的基因。IL7通路的激活与适应性免疫系统过程和转录调控的显著富集以及与能量代谢和转录相关通路的耗竭同时出现。这些与器官功能相关主题的下调再次主要发生在MCD中,在MN中则明显不那么明显。免疫荧光和免疫组化分别证实了磷酸化IL-7受体α(IL7RA,CD127)和IL12受体β1(IL12RB1)蛋白的表达。存档FFPE活检组织的基因表达谱分析确定了以IL7RA和IL12RB1为MCD治疗新靶点的MCD特异性特征。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/00c2/9856051/3294c419fe9f/biomedicines-11-00226-g001.jpg

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验