Significant salivary changes in relation to oral mucositis following autologous hematopoietic stem cell transplantation

S.J.M. van Leeuwen, G.B. Proctor, A.M.G.A. Laheij, C.M.J. Potting, O. Smits, E.M. Bronkhorst, M.D. Hazenberg, T.M. Haverman, M.T. Brennan, I. von Bültzingslöwen, J.E. Raber-Durlacher, M.C.D.N.J.M. Huysmans, F.R. Rozema, N.M.A. Blijlevens

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

© 2020, The Author(s).The aim of this multicentre, longitudinal study was to determine salivary changes in relation to oral mucositis (OM) in multiple myeloma patients following high-dose melphalan and autologous hematopoietic stem cell transplantation (ASCT). Unstimulated and stimulated whole-mouth saliva samples (UWS and SWS) were collected before ASCT, 1×/wk during the hospitalisation phase, and 3 and 12 months post-ASCT. During the hospitalisation period OM was scored 3×/wk (WHO system). Flow rate, pH, total protein concentration (Nanodrop), albumin, lactoferrin, neutrophil defensin-1 (HNP1), total IgA and S100A8/A9 (ELISA) were determined. Mixed models were used to evaluate differences between ulcerative (u)OM (≥2 WHO, n = 20) and non-uOM (n = 31) groups. Until 18 days after ASCT, flow rate, pH, total IgA and HNP1 levels decreased in UWS and/or SWS, while log lactoferrin levels were significantly increased (UWS: p = 0.016 95% CI [0.36, 3.58], SWS: p < 0.001 95% CI [1.14, 3.29]). Twelve months post-ASCT, salivary protein levels were similar to baseline except for log total IgA, which was higher (UWS: p < 0.001 95% CI [0.49, 1.29], SWS: p < 0.001 95% CI [0.72, 1.45]). No differences between uOM and non-uOM groups were observed. Changes in salivary proteins indicated an inflammatory reaction in salivary glands coinciding with mucosal and systemic reactions in response to high-dose melphalan.
Original languageEnglish
Pages (from-to)1381-1390
JournalBone Marrow Transplantation
Volume56
Issue number6
DOIs
Publication statusPublished - 1 Jun 2021

Funding

Acknowledgements The study was funded by the Dutch Cancer Society (ACTA 2014-7468). For the help with the laboratory analysis of the total IgA levels in supernatant and precipitate we want to thank M.A.C. Sanders and M. Struik. For the help with the data collection we want to thank R.G.A. Koppelmans. This study was funded by: Dutch Cancer Society.

FundersFunder number
Dutch Cancer SocietyACTA 2014-7468

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