Comparison of wild-type and Mfsd2a KO eye cups

Eye photoreceptor membrane discs in outer rod segments are highly enriched in the visual pigment rhodopsin and the omega-3 fatty acid docosahexaenote (DHA). The eye acquires DHA from blood, but transporters for DHA uptake across the blood-retinal barrier (BRB) or retinal pigment epithelium have not been identified. Mfsd2a is a newly described sodium-dependent lysophosphatidylcholine symporter expressed at the BRB.

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Wong BH, Chan JP, Cazenave-Gassiot A, Poh RW, Foo JC, Galam DL, Ghosh S, Nguyen LN, Barathi VA, Yeo SW, Luu CD, Wenk MR, Silver DL