Cross-species transcriptional network analysis defines shared inflammatory responses in murine and human lupus nephritis
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Cross-species transcriptional network analysis defines shared inflammatory responses in murine and human lupus nephritis. / Berthier, Celine C; Bethunaickan, Ramalingam; Gonzalez-Rivera, Tania; Nair, Viji; Ramanujam, Meera; Zhang, Weijia; Bottinger, Erwin P; Segerer, Stephan; Lindenmeyer, Maja; Cohen, Clemens D; Davidson, Anne; Kretzler, Matthias.
In: J IMMUNOL, Vol. 189, No. 2, 15.07.2012, p. 988-1001.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Cross-species transcriptional network analysis defines shared inflammatory responses in murine and human lupus nephritis
AU - Berthier, Celine C
AU - Bethunaickan, Ramalingam
AU - Gonzalez-Rivera, Tania
AU - Nair, Viji
AU - Ramanujam, Meera
AU - Zhang, Weijia
AU - Bottinger, Erwin P
AU - Segerer, Stephan
AU - Lindenmeyer, Maja
AU - Cohen, Clemens D
AU - Davidson, Anne
AU - Kretzler, Matthias
PY - 2012/7/15
Y1 - 2012/7/15
N2 - Lupus nephritis (LN) is a serious manifestation of systemic lupus erythematosus. Therapeutic studies in mouse LN models do not always predict outcomes of human therapeutic trials, raising concerns about the human relevance of these preclinical models. In this study, we used an unbiased transcriptional network approach to define, in molecular terms, similarities and differences among three lupus models and human LN. Genome-wide gene-expression networks were generated using natural language processing and automated promoter analysis and compared across species via suboptimal graph matching. The three murine models and human LN share both common and unique features. The 20 commonly shared network nodes reflect the key pathologic processes of immune cell infiltration/activation, endothelial cell activation/injury, and tissue remodeling/fibrosis, with macrophage/dendritic cell activation as a dominant cross-species shared transcriptional pathway. The unique nodes reflect differences in numbers and types of infiltrating cells and degree of remodeling among the three mouse strains. To define mononuclear phagocyte-derived pathways in human LN, gene sets activated in isolated NZB/W renal mononuclear cells were compared with human LN kidney profiles. A tissue compartment-specific macrophage-activation pattern was seen, with NF-κB1 and PPARγ as major regulatory nodes in the tubulointerstitial and glomerular networks, respectively. Our study defines which pathologic processes in murine models of LN recapitulate the key transcriptional processes active in human LN and suggests that there are functional differences between mononuclear phagocytes infiltrating different renal microenvironments.
AB - Lupus nephritis (LN) is a serious manifestation of systemic lupus erythematosus. Therapeutic studies in mouse LN models do not always predict outcomes of human therapeutic trials, raising concerns about the human relevance of these preclinical models. In this study, we used an unbiased transcriptional network approach to define, in molecular terms, similarities and differences among three lupus models and human LN. Genome-wide gene-expression networks were generated using natural language processing and automated promoter analysis and compared across species via suboptimal graph matching. The three murine models and human LN share both common and unique features. The 20 commonly shared network nodes reflect the key pathologic processes of immune cell infiltration/activation, endothelial cell activation/injury, and tissue remodeling/fibrosis, with macrophage/dendritic cell activation as a dominant cross-species shared transcriptional pathway. The unique nodes reflect differences in numbers and types of infiltrating cells and degree of remodeling among the three mouse strains. To define mononuclear phagocyte-derived pathways in human LN, gene sets activated in isolated NZB/W renal mononuclear cells were compared with human LN kidney profiles. A tissue compartment-specific macrophage-activation pattern was seen, with NF-κB1 and PPARγ as major regulatory nodes in the tubulointerstitial and glomerular networks, respectively. Our study defines which pathologic processes in murine models of LN recapitulate the key transcriptional processes active in human LN and suggests that there are functional differences between mononuclear phagocytes infiltrating different renal microenvironments.
KW - Animals
KW - Crosses, Genetic
KW - Disease Models, Animal
KW - Gene Expression Profiling
KW - Gene Regulatory Networks
KW - Glomerulonephritis, IGA
KW - Humans
KW - Inflammation
KW - Lupus Nephritis
KW - Male
KW - Mice
KW - Mice, Inbred NZB
KW - Nephritis, Interstitial
KW - Proteinuria
KW - Transcription, Genetic
KW - Comparative Study
KW - Journal Article
KW - Research Support, N.I.H., Extramural
KW - Research Support, Non-U.S. Gov't
U2 - 10.4049/jimmunol.1103031
DO - 10.4049/jimmunol.1103031
M3 - SCORING: Journal article
C2 - 22723521
VL - 189
SP - 988
EP - 1001
JO - J IMMUNOL
JF - J IMMUNOL
SN - 0022-1767
IS - 2
ER -