FIGURE 1.

CD73 expression in the adult and developing fetal human retina. A‐C, Single‐cell RNA sequencing of adult human retinal cells⁵⁸ demonstrates that the NT5E gene that encodes CD73 is expressed by a select population of mature rod photoreceptor cells only. D‐F, Reprocessed single‐cell RNA sequencing of developing fetal human retinal cells⁵⁹ demonstrates that NT5E is predominantly expressed by committed rod photoreceptor cells, with very infrequent expression in retinal progenitor cells and developing cone photoreceptor cells