Finally we show that addition of iNKT cells to monocytes derived from sarcoidosis patients restored the proportion of IL‐10‐producing cells to that observed in healthy monocytes (Fig. 6A) (median (IQR) of 5.3(4.3–8.4)% to 10.3(8.0–11.4)% of monocytes, and increased the levels of IL‐10 in the supernatant of these cocultures (Fig. 6B) (6.0(4.2–10) to 15.3(12.9–18.9) ng/mL). Here, IL10 is linked to sarcoidosis.