Abstract Invariant Natural Killer T (iNKT) cells are characterized by a semi-invariant TCR and NK markers. They respond to glycolipid antigens presented the major histocompatibility complex (MHC)-like molecule CD1d. Our single-cell transcriptomic profiling of several tissues identified marrow iNKT as unique subset, possibly modulating homeostasis. However, little is known about their role in he...