Evaluation of Salivary Cytokines for Diagnosis of both Trauma-Induced and Genetic Heterotopic Ossification

Autor: Benjamin Levi, Hsiao Hsin Sung Hsieh, Michael T. Chung, Ronald M. Allen, Kavitha Ranganathan, Joe Habbouche, David Cholok, Jonathan Butts, Arminder Kaura, Ramkumar Tiruvannamalai-Annamalai, Chris Breuler, Caitlin Priest, Shawn J. Loder, John Li, Shuli Li, Jan Stegemann, Steven L. Kunkel
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Frontiers in Endocrinology, Vol 8 (2017)
Druh dokumentu: article
ISSN: 1664-2392
DOI: 10.3389/fendo.2017.00074
Popis: PurposeHeterotopic ossification (HO) occurs in the setting of persistent systemic inflammation. The identification of reliable biomarkers can serve as an early diagnostic tool for HO, especially given the current lack of effective treatment strategies. Although serum biomarkers have great utility, they can be inappropriate or ineffective in traumatic acute injuries and in patients with fibrodysplasia ossificans progressiva (FOP). Therefore, the goal of this study is to profile the cytokines associated with HO using a different non-invasive source of biomarkers.MethodsSerum and saliva were collected from a model of trauma-induced HO (tHO) with hind limb Achilles’ tenotomy and dorsal burn injury at indicated time points (pre-injury, 48 h, 1 week, and 3 weeks post-injury) and a genetic non-trauma HO model (Nfatc1-Cre/caAcvr1fl/wt). Samples were analyzed for 27 cytokines using the Bio-Plex assay. Histologic evaluation was performed in Nfatc1-Cre/caAcvr1fl/wt mice and at 48 h and 1 week post-injury in burn tenotomy mice. The mRNA expression levels of these cytokines at the tenotomy site were also quantified with quantitative real-time PCR. Pearson correlation coefficient was assessed between saliva and serum.ResultsLevels of TNF-α and IL-1β peaked at 48 h and 1 week post-injury in the burn/tenotomy cohort, and these values were significantly higher when compared with both uninjured (p
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