Gene expression patterns in blood leukocytes discriminate patients with acute infections

Octavio Ramilo, Windy Allman, Wendy Chung, Asuncion Mejias, Monica Ardura, Casey Glaser, Knut M. Wittkowski, Bernard Piqueras, Jacques Banchereau, A. Karolina Palucka, Damien J. Chaussabel

Research output: Contribution to journalArticle

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Abstract

Each infectious agent represents a unique combination of pathogen-associated molecular patterns that interact with specific pattern-recognition receptors expressed on immune cells. Therefore, we surmised that the blood immune cells of individuals with different infections might bear discriminative transcriptional signatures. Gene expression profiles were obtained for 131 peripheral blood samples from pediatric patients with acute infections caused by influenza A virus, Gram-negative (Escherichia coli) or Gram-positive (Staphylococcus aureus and Streptococcus pneumoniae) bacteria. Thirty-five genes were identified that best discriminate patients with influenza A virus infection from patients with either E coli or S pneumoniae infection. These genes classified with 95% accuracy (35 of 37 samples) an independent set of patients with either influenza A, E coli, or S pneumoniae infection. A different signature discriminated patients with E coli versus S aureus infections with 85% accuracy (34 of 40). Furthermore, distinctive gene expression patterns were observed in patients presenting with respiratory infections of different etiologies. Thus, microarray analyses of patient peripheral blood leukocytes might assist in the differential diagnosis of infectious diseases.

Original languageEnglish
Pages (from-to)2066-2077
Number of pages12
JournalBlood
Volume109
Issue number5
DOIs
Publication statusPublished - 1 Mar 2007
Externally publishedYes

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Gene expression
Escherichia coli
Leukocytes
Blood
Gene Expression
Infection
Viruses
Genes
Pattern Recognition Receptors
Influenza A virus
Pediatrics
Microarrays
Pneumonia
Bacteria
Staphylococcal Pneumonia
Virus Diseases
Microarray Analysis
Streptococcus pneumoniae
Transcriptome
Respiratory Tract Infections

ASJC Scopus subject areas

  • Hematology

Cite this

Gene expression patterns in blood leukocytes discriminate patients with acute infections. / Ramilo, Octavio; Allman, Windy; Chung, Wendy; Mejias, Asuncion; Ardura, Monica; Glaser, Casey; Wittkowski, Knut M.; Piqueras, Bernard; Banchereau, Jacques; Palucka, A. Karolina; Chaussabel, Damien J.

In: Blood, Vol. 109, No. 5, 01.03.2007, p. 2066-2077.

Research output: Contribution to journalArticle

Ramilo, O, Allman, W, Chung, W, Mejias, A, Ardura, M, Glaser, C, Wittkowski, KM, Piqueras, B, Banchereau, J, Palucka, AK & Chaussabel, DJ 2007, 'Gene expression patterns in blood leukocytes discriminate patients with acute infections', Blood, vol. 109, no. 5, pp. 2066-2077. https://doi.org/10.1182/blood-2006-02-002477
Ramilo O, Allman W, Chung W, Mejias A, Ardura M, Glaser C et al. Gene expression patterns in blood leukocytes discriminate patients with acute infections. Blood. 2007 Mar 1;109(5):2066-2077. https://doi.org/10.1182/blood-2006-02-002477
Ramilo, Octavio ; Allman, Windy ; Chung, Wendy ; Mejias, Asuncion ; Ardura, Monica ; Glaser, Casey ; Wittkowski, Knut M. ; Piqueras, Bernard ; Banchereau, Jacques ; Palucka, A. Karolina ; Chaussabel, Damien J. / Gene expression patterns in blood leukocytes discriminate patients with acute infections. In: Blood. 2007 ; Vol. 109, No. 5. pp. 2066-2077.
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