CD74 and pulmonary arterial hypertension: Out of those 222, 14 showed statistically significant differences between PAH ECs and controls (CD74, H2-Ab1, H2-Aa, H2-Eb1, Sparcl1, QSOX1, Tap1, H2-DMa, CD34, H2-DMb1, Aqp1, Milpda, Plvap, and Abi3bp) [33].