Development and evaluation of oligonucleotide chip based on the 16S-23S rRNA gene spacer region for detection of pathogenic microorganisms associated with sepsis

Cheol Min Kim, Eun Sil Song, Hyun Jung Jang, Hyun Ju Kim, Sangyeop Lee, Jeong Hwan Shin, Sun Joo Kim, Seokhoon Jeong, Joseph Jeong, Kwangnak Koh, Go Eun Choi, Eun Yup Lee, Chulhun L. Chang

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Oligonucleotide chips targeting the bacterial internal transcribed spacer region (ITS) of the 16S-23S rRNA gene, which contains genus- and species-specific regions, were developed and evaluated. Forty-three sequences were designed consisting of 1 universal, 3 Gram stain-specific, 9 genus-specific, and 30 species-specific probes. The specificity of the probes was confirmed using bacterial type strains including 54 of 52 species belonging to 18 genera. The performance of the probes was evaluated using 825 consecutive samples that were positive by blood culture in broth medium. Among the 825 clinical specimens, 708 (85.8%) were identified correctly by the oligonucleotide chip. Most (536 isolates, or 75.7%) were identified as staphylococci, Escherichia coli, or Klebsiella pneumoniae. Thirty-seven isolates (4.5%) did not bind to the corresponding specific probes. Most of these also were staphylococci, E. coli, or K. pneumoniae and accounted for 6.3% of total number of the species. Sixty-two specimens (7.5%) did not bind the genus- or species-specific probes because of lack of corresponding specific probes. Among them, Acinetobacter baumannii was the single most frequent isolate (26/62). The oligonucleotide chip was highly specific and sensitive in detecting the causative agents of bacteremia directly from positive blood cultures.

Original languageEnglish
Pages (from-to)1578-1583
Number of pages6
JournalJournal of Clinical Microbiology
Volume48
Issue number5
DOIs
Publication statusPublished - 2010 May 1

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rRNA Genes
Oligonucleotides
Sepsis
Klebsiella pneumoniae
Staphylococcus
Escherichia coli
Acinetobacter baumannii
Bacteremia
Blood Culture

All Science Journal Classification (ASJC) codes

  • Microbiology (medical)

Cite this

Kim, Cheol Min ; Song, Eun Sil ; Jang, Hyun Jung ; Kim, Hyun Ju ; Lee, Sangyeop ; Shin, Jeong Hwan ; Kim, Sun Joo ; Jeong, Seokhoon ; Jeong, Joseph ; Koh, Kwangnak ; Choi, Go Eun ; Lee, Eun Yup ; Chang, Chulhun L. / Development and evaluation of oligonucleotide chip based on the 16S-23S rRNA gene spacer region for detection of pathogenic microorganisms associated with sepsis. In: Journal of Clinical Microbiology. 2010 ; Vol. 48, No. 5. pp. 1578-1583.
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Development and evaluation of oligonucleotide chip based on the 16S-23S rRNA gene spacer region for detection of pathogenic microorganisms associated with sepsis. / Kim, Cheol Min; Song, Eun Sil; Jang, Hyun Jung; Kim, Hyun Ju; Lee, Sangyeop; Shin, Jeong Hwan; Kim, Sun Joo; Jeong, Seokhoon; Jeong, Joseph; Koh, Kwangnak; Choi, Go Eun; Lee, Eun Yup; Chang, Chulhun L.

In: Journal of Clinical Microbiology, Vol. 48, No. 5, 01.05.2010, p. 1578-1583.

Research output: Contribution to journalArticle

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AU - Shin, Jeong Hwan

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