Expression of the B cell differentiation factor BAFF and chemokine CXCL13 in a murine model of Respiratory Syncytial Virus infection



Alturaiki, Wael, McFarlane, Amanda J, Rose, Katie, Corkhill, Rachel, McNamara, Paul S ORCID: 0000-0002-7055-6034, Schwarze, Jurgen and Flanagan, Brian F
(2018) Expression of the B cell differentiation factor BAFF and chemokine CXCL13 in a murine model of Respiratory Syncytial Virus infection. CYTOKINE, 110. pp. 267-271.

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Abstract

Innate immune responses are known to influence the subsequent development of adaptive immunity. We have previously shown that RSV infection of human airway epithelial cells results in production of the B cell growth factor, BAFF. To better understand how the airway responds to RSV infection by production of this and other factors to support or enhance local B cell responses to infection, we analysed the lung expression of BAFF and B cell homeostatic chemokines CXCL12, CXCL13, CCL19 and CCL21 in a murine model of RSV infection. Following infection with A2 strain RSV, the highest RSV N gene expression was observed at day 4 after challenge with virus. In contrast, two peaks of elevated BAFF expression at days 2 and 7 were observed. CXCL13 was significantly elevated at days 1, 2 and 7. CXCL12, CCL19 and CCL21 were expressed within lung tissue from control and RSV challenged animals but no significant difference in expression was found. Immunofluorescence showed BAFF to be present throughout the tissue however CXCL13 expression was localized to cell rich areas probably constituting lymphoid aggregates. Our results define the kinetics of B cell chemoattractant and growth factor expression during RSV infection and indicate an important role for these cytokines in the airway response to RSV infection.

Item Type: Article
Uncontrolled Keywords: Innate Immunity, BAFF, Respiratory Syncytial Virus, CXCl13, Respiratory infection, B cell
Depositing User: Symplectic Admin
Date Deposited: 17 Jan 2018 09:35
Last Modified: 19 Jan 2023 06:43
DOI: 10.1016/j.cyto.2018.01.014
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3016261