S100A9 and myelodysplastic syndrome: In general, lower-risk MDS is often linked to increased intramedullary apoptosis and pyroptosis, accompanied by elevated interferon-γ (IFN-γ), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), S100A8/S100A9 and NLRP3 inflammasome levels [17–19].