Mitochondrial alanyl-tRNA synthetase 2 mediates histone lactylation to promote ferroptosis in intestinal ischemia-reperfusion injury

Figure 2 Mitochondrial alanyl-tRNA synthetase 2 increases in vitro cell injury. A: Protein level of mitochondrial alanyl-tRNA synthetase 2 (AARS2) in cells. Protein levels of AARS2 in cells normalized to β-actin. Bar graphs show densitometric quantification (mean ± SD); B: Cell viability was detected by CCK-8; C: mRNA abundance of ZO-1 and occluding; D: Levels of Fe²⁺ and malondialdehyde; E: Protein levels of GPX4 and acyl-CoA synthetase long-chain family member 4 (ACSL4) in cells. Protein levels of GPX4 and ACSL4 in cells normalized to β-actin. Bar graphs show densitometric quantification (mean ± SD). ^aP < 0.01 vs cont, ^bP < 0.01 vs hypoxia-reperfusion. H/R: Hypoxia-reperfusion; AARS2: Mitochondrial alanyl-tRNA synthetase 2.