Figure 3

Monkey secondary follicles grown in a 3D culture system. Example of a monkey secondary follicle grown in a 3D culture system: Size at the beginning (left) and at the end of the culture when this follicle achieved the small antral stage (right; 35 days) (A). All 16 follicles that were examined upon termination of the culture express aromatase and receptors for FSH (FSHR), but only a few (7) express ADRB-2 (B).