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Inflammatory profile of lower risk myelodysplastic syndromes
Parker, Jane
Parker, Jane
Abstract
The precise link between inflammation and pathogenesis of myelodysplastic syndrome (MDS) is yet to be fully established. We developed a novel method to measure ASC/NLRP3 protein specks which are specific for the NLRP3 inflammasome only. We combined this with cytokine profiling to characterise various inflammatory markers in a large cohort of patients with lower risk MDS in comparison to healthy controls and patients with defined autoinflammatory disorders (AIDs). The ASC/NLRP3 specks were significantly elevated in MDS patients compared to healthy controls (p < 0.001) and these levels were comparable to those found in patients with AIDs. The distribution of protein specks positive only for ASC was different to ASC/NLRP3 ones suggesting that other ASC-containing inflammasome complexes might be important in the pathogenesis of MDS. Patients with MDS-SLD had the lowest levels of interleukin (IL)-1β, tumour necrosis factor (TNF), IL-23, IL-33, interferon (IFN) γ and IFN-α2, compared to other diagnostic categories. We also found that inflammatory cytokine TNF was positively associated with MDS progression to a more aggressive form of disease and IL-6 and IL-1β with time to first red blood cell transfusion. Our study shows that there is value in analysing inflammatory biomarkers in MDS, but their diagnostic and prognostic utility is yet to be fully validated.
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2024-09
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Topping, J., Taylor, A., Nadat, F., Crouch, S., Ibbotson, A., Čermák, J., Symeonidis, A., Tatic, A., Langemeijer, S., Hellström-Lindberg, E., Culligan, D., Garelius, H. G., Ashcroft, J., Nga, E., Parker, J., Kolade, S., McDermott, M. F., De Witte, T., Bowen, D., Smith, A., … ImmunAID consortium and EU‐MDS consortium (2024). Inflammatory profile of lower risk myelodysplastic syndromes. British journal of haematology v205(3)pp.1044–1054. https://doi.org/10.1111/bjh.19530
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© 2024 The Authors. British Journal of Haematology published by British Society for Haematology and John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided theoriginal work is properly cited. http://creativecommons.org/licenses/by/4.0/.