P2RY14 and myasthenia gravis: In contrast, UDPG was able to inhibit FK-induced cAMP in U373 MG astrocytoma [67], T-lymphocytes [68], and neutrophils [62], however, since P2Y14 was found to be absent in U373 MG cells [67], the effects of UDPG may be P2Y14-independent.