Transcriptional profiling reveals suppressed erythropoiesis, up-regulated glycolysis, and interferon-associated responses in murine malaria
- Author(s)
- Sexton, AC; Good, RT; Hansen, DS; D'Ombrain, MC; Buckingham, L; Simpson, K; Schofield, L;
- Details
- Publication Year 2004-04-01,Volume 189,Issue #7,Page 1245-1256
- Journal Title
- JOURNAL OF INFECTIOUS DISEASES
- Publication Type
- Journal Article
- Abstract
- The primary pathophysiological events contributing to fatal malaria are the cerebral syndrome, anemia, and lactic acidosis. The molecular basis of each event has been unclear. In the present study, microarray analysis of murine transcriptional responses during the development of severe disease revealed temporal, organ-specific, and pathway-specific patterns. More than 400 genes in the brain and 600 genes in the spleen displayed transcriptional changes. Dominant patterns revealed strongly suppressed erythropoiesis, starting early during infection, and highly up-regulated transcription of genes that control host glycolysis, including lactate dehydrogenase. The latter presents a mechanism that may contribute to metabolic acidosis. No evidence for hypoxia-mediated regulation of these events was observed. Interferon-regulated gene transcripts dominated the inflammatory response to cytokines. These results demonstrate previously unknown transcriptional changes in the host that may underlie the development of malarial syndromes, such as anemia and metabolic dysregulation, and increase the utility of murine models in investigation of basic malarial pathogenesis.
- Publisher
- UNIV CHICAGO PRESS
- Keywords
- TUMOR-NECROSIS-FACTOR; HUMAN CEREBRAL MALARIA; FACTOR-ALPHA; MONOCLONAL-ANTIBODY; MESSENGER-RNA; IFN-GAMMA; T-CELLS; PATHOGENESIS; EXPRESSION; INFECTION
- Publisher's Version
- https://doi.org/10.1086/382596
- Terms of Use/Rights Notice
- Refer to copyright notice on published article.
Creation Date: 2004-04-01 12:00:00