In vitro innate immune cell based models to assess whole cell Bordetella pertussis vaccine quality: A proof of principle. Issue 2 (March 2015)

• Record Type: Journal Article
• Authors: Hoonakker, M.E.; Verhagen, L.M.; Hendriksen, C.F.M.; van Els, C.A.C.M.; Vandebriel, R.J.; Sloots, A.; Han, W.G.H.
• Is Part Of: Biologicals. Volume 43:Issue 2(2015:Mar.)
• Page Start: 100
• Page End: 109
• Publication Date: 2015-03
• Subjects: Biological products -- Standards -- Periodicals; Biological Products -- Periodicals; Biological Products -- standards -- Periodicals; Produits biologiques -- Normes -- Périodiques; Biological products -- Standards; Periodicals; 615.37
• DOI: 10.1016/j.biologicals.2014.12.002
• Languages: English
• ISSNs: 1045-1056

Abstract

<abstract xml:lang="en" abstract-type="author" id="abs0010"> <title id="sectitle0010">Abstract</title> <sec> <p id="abspara0010">Lot release testing of vaccines is primarily based on animal models that are costly, time-consuming and sometimes of questionable relevance. In order to reduce animal use, functional <italic>in vitro</italic> assays are being explored as an alternative approach for the current lot release testing paradigm. In this study, we present an evaluation of APC platforms assessing innate immune activation by whole cell <italic>Bordetella pertussis</italic> (wP) vaccines. Primary monocytes, monocyte-derived DC (moDC) and human monocyte/DC cell lines (MonoMac6 and MUTZ-3) were compared for their capacity to respond to wP vaccines of varying quality. To produce such vaccines, the production process of wP was manipulated, resulting in wP vaccines covering a range of <italic>in vivo</italic> potencies. The responses of MUTZ-3 cells and primary monocytes to these vaccines were marginal and these models were therefore considered inappropriate. Importantly, moDC and MonoMac6 cells responded to the wP vaccines and discriminated between vaccines of varying quality, although slight variations in the responses to wP vaccines of similar quality were also observed. This study provides a proof of principle for the use of <italic>in vitro</italic> APC platforms as part of a new strategy to assess wP vaccine lot consistency, though careful standardisation of assay conditions is necessary.</p> </sec> </abstract>