Gene expression in Passive Heymann Nephritis.

Microarray and bioinformatics analysis of gene expression in experimental membranous nephropathy

 PV. Hauser(1)*†, P. Perco(3,4,5)*, I. Mühlberger(5), J. Pippin(1), M. Blonski(1), B. Mayer(5), CE. Alpers(2), R. Oberbauer(3,4) SJ. Shankland(1)

1- Division of Nephrology & Hypertension, University of Washington, Seattle, WA, USA

2- Department of Pathology, University of Washington, Seattle, WA, USA

3- Department of Nephrology, KH Elisabethinen, Linz, Austria

4- Department of Nephrology, Medical University of Vienna, Austria

5- emergentec biodevelopment GmbH


†- currently at the Center for Molecular Biotechnology, University Torino, Torino, Italy

*- P. Hauser and P. Perco are co-first authors of this paper


// Tables
// Figures

Table 1:
Table 1:

Differentially expressed genes (DEGs)

List of 234 differentially regulated genes (>1.5 fold) in PHN induced rats on day three and or day six. Genes are annotated with NCBI Gene Symbols and grouped according to biological function. Starred (*) Gene Symbols mark predicted genes.

View PDF

Figure 1:
Figure 1:


Graph in figure 1 is showing total protein excretion of rats at the baseline (day 0) and after induction of disease (day 3 and day 6).

View PDF

Table 2:
Table 2:

List of over- and underrepresented ontology terms in the dataset

List of genes assigned to the over- or under-represented GO terms. Genes in the list are sorted according their cellular function. Significance levels are given as Bonferroni corrected p-values (p<0.005) following a chi-square test.

View PDF

Figure 2:
Figure 2:

Enriched biological processes

Enriched biological processes and number of differentially expressed genes are given in figure 2. Numbers in brackets depict expected gene numbers according to the background distribution of all human genes.

View PDF

Figure 3:
Figure 3:

Protein interaction modules

Graphical visualization of the top four network modules. Node fill colour indicates the measured fold-change, where green represents down regulated genes (light green < -1.5, dark green < -2) and red represents upregulated genes (orange <1.5, red >1.5, dark red >2). The node’s border colour indicates the subcellular localization of the protein (yellow for membrane and blue for extra cellular). Hexagon shape of the node represents DEGs and circular shape represents direct interacting proteins.

View PDF

Figure 4:
Figure 4:

SM22 levels in PHN

(A) Staining for SM22 is absent in control glomeruli, but is detected in the blood vessels. (B) SM22 staining is detected in the glomerulus at day 3 of PHN, in a podocyte distribution. (C) SM22 staining is markedly increased at day 6 of PHN in podocytes. Staining was absent when the primary antibody was omitted (not shown).

View PDF

Webfigure 1:
Webfigure 1:

Heatmap showing expression levels of the 234 differentially expressed genes

Horizontal rows represent the expression levels of the 234 DEGs sorted by fold-change when comparing controls and treated animals. Arrays were clustered using average linkage distance and the Pearson correlation coefficient in the clustering algorithm. Gene Symbols marked with an asterisk depict predicted genes. Grey bars indicate non-significant expression changes.

View JPG

Original data according to MiAME Guidelines

View PDF

Sample name:

RAE230A_d3_S1.CEL  //  rar-file

RAE230A_d3_S2.CEL  //  rar-file

RAE230A_d3_C3.CEL  //  rar-file

RAE230A_d3_C4.CEL  //  rar-file

RAE230A_d3_S5.CEL  //  rar-file

RAE230A_d3_S6.CEL  // rar-file

RAE230A_d3_S7.CEL  //  rar-file

RAE230A_d3_C8.CEL  //  rar-file

RAE230A_d3_C9.CEL  //  rar-file

RAE230A_d3_C10.CEL  //  rar-file

RAE230A_d6_C1.CEL  // rar-file

RAE230A_d6_C2.CEL  // rar-file

RAE230A_d6_C3.CEL  // rar-file

RAE230A_d6_C4.CEL  // rar-file

RAE230A_d6_C5.CEL  // rar-file

RAE230A_d6_S6.CEL  // rar-file

RAE230A_d6_S7.CEL  //  rar-file

RAE230A_d6_S8.CEL  //  rar-file

RAE230A_d6_S9.CEL  //  rar-file

RAE230A_d6_S10.CEL  //  rar-file

Data matrix