An Immune Response Network Associated with Blood Lipid Levels
While recent scans for genetic variation associated with human disease have been immensely successful in uncovering large numbers of loci, far fewer studies have focused on the underlying pathways of disease pathogenesis. Many loci which are associated with disease and complex phenotypes map to non-...
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| Format: | Article |
| Language: | en_US |
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Public Library of Science
2011
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| Online Access: | http://hdl.handle.net/1721.1/60396 |
| _version_ | 1826195873113047040 |
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| author | Inouye, Michael Silander, Kaisa Hamalainen, Eija Salomaa, Veikko Harald, Kennet Jousilahti, Pekka Männistö, Satu Eriksson, Johan G. Saarela, Janna Ripatti, Samuli Perola, Markus van Ommen, Gert-Jan B. Taskinen, Marja-Riitta Palotie, Aarno Dermitzakis, Emmanouil T. Peltonen, Leena |
| author2 | Broad Institute of MIT and Harvard |
| author_facet | Broad Institute of MIT and Harvard Inouye, Michael Silander, Kaisa Hamalainen, Eija Salomaa, Veikko Harald, Kennet Jousilahti, Pekka Männistö, Satu Eriksson, Johan G. Saarela, Janna Ripatti, Samuli Perola, Markus van Ommen, Gert-Jan B. Taskinen, Marja-Riitta Palotie, Aarno Dermitzakis, Emmanouil T. Peltonen, Leena |
| author_sort | Inouye, Michael |
| collection | MIT |
| description | While recent scans for genetic variation associated with human disease have been immensely successful in uncovering large numbers of loci, far fewer studies have focused on the underlying pathways of disease pathogenesis. Many loci which are associated with disease and complex phenotypes map to non-coding, regulatory regions of the genome, indicating that modulation of gene transcription plays a key role. Thus, this study generated genome-wide profiles of both genetic and transcriptional variation from the total blood extracts of over 500 randomly-selected, unrelated individuals. Using measurements of blood lipids, key players in the progression of atherosclerosis, three levels of biological information are integrated in order to investigate the interactions between circulating leukocytes and proximal lipid compounds. Pair-wise correlations between gene expression and lipid concentration indicate a prominent role for basophil granulocytes and mast cells, cell types central to powerful allergic and inflammatory responses. Network analysis of gene co-expression showed that the top associations function as part of a single, previously unknown gene module, the Lipid Leukocyte (LL) module. This module replicated in T cells from an independent cohort while also displaying potential tissue specificity. Further, genetic variation driving LL module expression included the single nucleotide polymorphism (SNP) most strongly associated with serum immunoglobulin E (IgE) levels, a key antibody in allergy. Structural Equation Modeling (SEM) indicated that LL module is at least partially reactive to blood lipid levels. Taken together, this study uncovers a gene network linking blood lipids and circulating cell types and offers insight into the hypothesis that the inflammatory response plays a prominent role in metabolism and the potential control of atherogenesis. |
| first_indexed | 2024-09-23T10:17:03Z |
| format | Article |
| id | mit-1721.1/60396 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:17:03Z |
| publishDate | 2011 |
| publisher | Public Library of Science |
| record_format | dspace |
| spelling | mit-1721.1/603962022-09-26T16:57:16Z An Immune Response Network Associated with Blood Lipid Levels Inouye, Michael Silander, Kaisa Hamalainen, Eija Salomaa, Veikko Harald, Kennet Jousilahti, Pekka Männistö, Satu Eriksson, Johan G. Saarela, Janna Ripatti, Samuli Perola, Markus van Ommen, Gert-Jan B. Taskinen, Marja-Riitta Palotie, Aarno Dermitzakis, Emmanouil T. Peltonen, Leena Broad Institute of MIT and Harvard Peltonen, Leena Peltonen, Leena While recent scans for genetic variation associated with human disease have been immensely successful in uncovering large numbers of loci, far fewer studies have focused on the underlying pathways of disease pathogenesis. Many loci which are associated with disease and complex phenotypes map to non-coding, regulatory regions of the genome, indicating that modulation of gene transcription plays a key role. Thus, this study generated genome-wide profiles of both genetic and transcriptional variation from the total blood extracts of over 500 randomly-selected, unrelated individuals. Using measurements of blood lipids, key players in the progression of atherosclerosis, three levels of biological information are integrated in order to investigate the interactions between circulating leukocytes and proximal lipid compounds. Pair-wise correlations between gene expression and lipid concentration indicate a prominent role for basophil granulocytes and mast cells, cell types central to powerful allergic and inflammatory responses. Network analysis of gene co-expression showed that the top associations function as part of a single, previously unknown gene module, the Lipid Leukocyte (LL) module. This module replicated in T cells from an independent cohort while also displaying potential tissue specificity. Further, genetic variation driving LL module expression included the single nucleotide polymorphism (SNP) most strongly associated with serum immunoglobulin E (IgE) levels, a key antibody in allergy. Structural Equation Modeling (SEM) indicated that LL module is at least partially reactive to blood lipid levels. Taken together, this study uncovers a gene network linking blood lipids and circulating cell types and offers insight into the hypothesis that the inflammatory response plays a prominent role in metabolism and the potential control of atherogenesis. Wellcome Trust (London, England) (WT089061) Wellcome Trust (London, England) (WT089062) Academy of Finland (129680) Academy of Finland (213506) 2011-01-07T15:16:13Z 2011-01-07T15:16:13Z 2010-09 2009-04 Article http://purl.org/eprint/type/JournalArticle 1553-7404 1553-7390 http://hdl.handle.net/1721.1/60396 Inouye, Michael et al. “An Immune Response Network Associated with Blood Lipid Levels.” PLoS Genet 6.9 (2010): e1001113. en_US http://dx.doi.org/10.1371/journal.pgen.1001113 PLoS Genetics Creative Commons Attribution http://creativecommons.org/licenses/by/2.5/ application/pdf Public Library of Science PLoS |
| spellingShingle | Inouye, Michael Silander, Kaisa Hamalainen, Eija Salomaa, Veikko Harald, Kennet Jousilahti, Pekka Männistö, Satu Eriksson, Johan G. Saarela, Janna Ripatti, Samuli Perola, Markus van Ommen, Gert-Jan B. Taskinen, Marja-Riitta Palotie, Aarno Dermitzakis, Emmanouil T. Peltonen, Leena An Immune Response Network Associated with Blood Lipid Levels |
| title | An Immune Response Network Associated with Blood Lipid Levels |
| title_full | An Immune Response Network Associated with Blood Lipid Levels |
| title_fullStr | An Immune Response Network Associated with Blood Lipid Levels |
| title_full_unstemmed | An Immune Response Network Associated with Blood Lipid Levels |
| title_short | An Immune Response Network Associated with Blood Lipid Levels |
| title_sort | immune response network associated with blood lipid levels |
| url | http://hdl.handle.net/1721.1/60396 |
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