CD200R1 and allergic asthma: For instance, it has been shown that CD200R1 engagement inhibits activation, proliferation and type 2 cytokine production on type 2 innate lymphoid cells (ILC2s) in allergic asthma [79] and deletion of CD200R1 led in reduction of neutrophil ROS production as well as promotion of neutrophil niche in Francisella tularensis [80].