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Infection and Immunity, January 2001, p. 613-616, Vol. 69, No. 1
Departamento de Genética, Centro
Nacional de Investigaciones
Científicas,1 and Laboratorio de
Farmacología, Centro de Química
Farmacéutica,2 La Habana, Cuba
Received 18 April 2000/Returned for modification 16 June
2000/Accepted 25 October 2000
In this study, we analyzed whether attachment of Vibrio
cholerae vaccine strains to human intestinal epithelial cells can induce an interleukin-8 (IL-8) response. The IL-8 transcripts were
detected by PCR amplification of reverse-transcribed mRNA, and the gene
product secretion was measured by an enzyme-linked immunosorbent assay.
Infection of monolayers of the undifferentiated HT29-18N2 cell line
with reactogenic (JBK70 and 81) and nonreactogenic (CVD103HgR and 638)
vaccine strains of V. cholerae resulted in markedly higher
IL-8 expression by epithelial cells exposed to reactogenic strains than
by cells exposed to the nonreactogenic strains. Additionally,
epithelial cells produced IL-8 transcripts following stimulation with
cholera vaccine strains in a concentration-dependent manner. These
results represent a new insight into the inflammatory component of
reactogenicity and could be used as a predictive marker of vaccine
reactogenicity prior to human testing.
0019-9567/01/$04.00+0 DOI: 10.1128/IAI.69.1.613-616.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
Differential Interleukin-8 Response of Intestinal
Epithelial Cell Line to Reactogenic and Nonreactogenic Candidate
Vaccine Strains of Vibrio cholerae
*
Corresponding author. Mailing address: Departamento de
Genética, CNIC, Ave. 25 y 158, Cubanacan, Playa, P.O. Box
6412, La Habana, Cuba. Phone: (537) 21 80 66. Fax: (537) 28 04 97. E-mail: boris{at}biocnic.cneuro.edu.cu.
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