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. 2015 Aug 13;10(8):e0135710. doi: 10.1371/journal.pone.0135710

Fig 4. Early Reelin-expressing cells in the peripheral olfactory system.

Fig 4

(A) At CS 15, few Reelin-expressing cells are present in the presumptive OE lining the invaginated placode and in the migratory stream in the mesenchyme in front of the telencephalon (arrows). (B) A higher magnification of the epithelium shows two Reelin-positive cells (arrows). (C) At CS 17, more Reeling-positive cells are present in the OE, leaving the OE and entering the migratory stream. (D) Double Reelin and calretinin immunostaining shows that Reelin-positive cells in the OE and the mesenchyme are neurons. Abbreviations: (cal) calretinin immunostaining, (CS) Carnegie stage, (OP) olfactory placode.