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Infection and Immunity, June 2008, p. 2392-2401, Vol. 76, No. 6
0019-9567/08/$08.00+0     doi:10.1128/IAI.01584-07
Copyright © 2008, American Society for Microbiology. All Rights Reserved.

Characterization of Murine Dendritic Cell Line JAWS II and Primary Bone Marrow-Derived Dendritic Cells in Chlamydia muridarum Antigen Presentation and Induction of Protective Immunity{triangledown}

Xiaozhou Jiang, Caixia Shen, Jose Rey-Ladino, Hong Yu, and Robert C. Brunham*

University of British Columbia Centre for Disease Control, 655 West 12th Avenue, Vancouver, BC, Canada V5Z 4R4

Received 30 November 2007/ Returned for modification 8 January 2008/ Accepted 17 March 2008

Dendritic cells (DCs) appear to orchestrate much of the immunobiology of Chlamydia infection, but most studies of Chlamydia-DC interaction have been limited by the availability and heterogeneity of primary bone marrow-derived DCs (BMDCs). We therefore evaluated the immunobiology of Chlamydia muridarum infection in an immortal DC line termed JAWS II derived from BMDCs of a C57BL/6 p53-knockout mouse. JAWS II cells were permissive to the developmental cycle of Chlamydia. Infection-induced cell death was 50 to 80% less in JAWS II cells than in BMDCs. Chlamydia infected JAWS II cells and yielded infectious progeny 10-fold greater than that with primary BMDCs. JAWS II cells showed an expression pattern of cell activation markers and cytokine secretion following Chlamydia infection similar to that of primary BMDCs by up-regulating the expression of CD86, CD40, and major histocompatibility complex class II and secreting significant amounts of interleukin-12 (IL-12) but not IL-10. JAWS II cells pulsed with Chlamydia stimulated immune CD4+ T cells to secrete gamma interferon. Adoptive transfer of ex vivo Chlamydia-pulsed JAWS II cells conferred levels of immunity on C57BL/6 mice similar to those conferred by primary BMDCs. Taken together, the data show that JAWS II cells exhibit immunobiological characteristics and functions similar to those of primary BMDCs in terms of Chlamydia antigen presentation in vitro and antigen delivery in vivo. We conclude that the JAWS II cell line can substitute for primary BMDCs in Chlamydia immunobiological studies.

* Corresponding author. Mailing address: University of British Columbia Centre for Disease Control, 655 West 12th Avenue, Vancouver, BC V5Z 4R4, Canada. Phone: (604) 660-2626. Fax: (604) 660-6066. E-mail: robert.brunham{at}bccdc.ca

{triangledown} Published ahead of print on 24 March 2008.

Editor: R. P. Morrison

Infection and Immunity, June 2008, p. 2392-2401, Vol. 76, No. 6
0019-9567/08/$08.00+0     doi:10.1128/IAI.01584-07
Copyright © 2008, American Society for Microbiology. All Rights Reserved.





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