MAP1LC3A and systemic lupus erythematosus: In Fig. 1d, 2a, cytoplasmic LC3-positive cells, suggesting autophagy formation, were identified in SLE-AH but not in PTX (Fig. 2a, 7.7 ± 3.1 versus 0 ± 0, p = 0.018), IgAV-AH or AAV-AH lung tissues.