Previous studies reported that patients with erythropoietic protoporphyria (Wang et al., 2011) or myelodysplastic syndrome (Visconte et al., 2015) exhibited a significant decrease in the levels of the normal SLC25A37 isoform, accompanied with an increase in its abnormal isoform encoding a defective protein. This evidence concerns the gene SLC25A37 and erythropoietic protoporphyria.