Involvement of blood mononuclear cells in the infertility, age-associated diseases and cancer treatment

Figure 13 ZP3 expression on growing preantral follicles and development of secondary Balbiani body in small antral follicles. A: Resting primary follicles express ZP1, ZP2 and ZP4[172], but lack ZP3 expression; Growing preantral follicles show oocyte ZP3 expression (B), but lack the secondary CK⁺ Balbiani body (C); which develops in the small antral follicles (blue arrowhead in D)[46]. ZP: Zona pellucida glycoprotein.