Canipari, R. (2000). Oocyte–granulosa cell interactions. Hum. Reprod. Update 6, 279–89.
Cha, K.Y. & Chian, R.C. (1998). Maturation in vitro of immature human oocytes for clinical use. Hum. Reprod. Update 4, 103–120
Chang, H.C., Liu, H., Zhang, J., Grifo, J. & Krey, L.C. (2005). Developmental incompetency of denuded mouse oocytes undergoing maturation in vitro is ooplasmic in nature and is associated with aberrant Oct-4 expression. Hum. Reprod. 20, 1958–68.
Chian, R.C., Niwa, K. & Sirard, M.A. (1994). Effects of cumulus cells on male pronuclear formation and subsequent early development of bovine oocytes in vitro. Theriogenology 41, 1499–508.
Combelles, C.M., Cekleniak, N.A., Racowsky, C. & Albertini, D.F. (2002) Assessment of nuclear and cytoplasmic maturation in in-vitro matured human oocytes. Hum. Reprod. 17, 1006–16.
Combelles, C.M., Fissore, R.A., Albertini, D.F. & Racowsky, C. (2005). In vitro maturation of human oocytes and cumulus cells using a co-culture three-dimensional collagen gel system. Hum. Reprod. 20, 1349–58.
Conti, M. (2010) Signaling networks in somatic cells and oocytes activated during ovulation. annales d endocrinologie (Paris) 71, 189–90.
Eppig, J.J., Pendola, F.L., Wigglesworth, K. & Pendola, J.K. (2005). Mouse oocytes regulate metabolic cooperativity between granulosa cells and oocytes: amino acid transport. Biol. Reprod. 73, 351–7.
Fatehi, A.N., Roelen, B.A., Colenbrander, B., Schoevers, E.J., Gadella, B.M., Beverst, M.M. & van denHurk, R. (2005). Presence of cumulus cells during in vitro fertilization protects the bovine oocyte against oxidative stress and improves first cleavage but does not affect further development. Zygote 13, 177–85.
Fatehi, A.N., Zeinstra, E.C., Kooij, R.V., Colenbrander, B. & Bevers, M.M. (2002). Effect of cumulus cell removal of in vitro matured bovine oocytes prior to in vitro fertilization on subsequent cleavage rate. Theriogenology 57, 1347–55.
Fitzharris, G. & Baltz, J.M. (2006). Granulosa cells regulate intracellular pH of the murine growing oocyte via gap junctions: development of independent homeostasis during oocyte growth. Development 133, 591–9.
Ge, L., Sui, H.S., Lan, G.C., Liu, N., Wang, J.Z. & TanJ, H. J, H. (2008). Coculture with cumulus cells improves maturation of mouse oocytes denuded of the cumulus oophorus: observations of nuclear and cytoplasmic events. Fertil. Steril. 90, 2376–88.
Hardy, K., Wright, C.S., Franks, S. & Winston, R.M. (2000). In vitro maturation of oocytes. Br. Med. Bull. 56, 588–602.
Hashimoto, S., Saeki, K., Nagao, Y., Minami, N., Yamada, M. & Utsumi, K. (1998). Effects of cumulus cell density during in vitro maturation of the developmental competence of bovine oocytes. Theriogenology 49, 1451–63.
Isobe, N. & Terada, T. (2001). Effect of the factor inhibiting germinal vesicle breakdown on the disruption of gap junctions and cumulus expansion of pig cumulus-oocyte complexes cultured in vitro. Reproduction 121, 249–57.
Isobe, N., Maeda, T. & Terada, T. (1998). Involvement of meiotic resumption in the disruption of gap junctions between cumulus cells attached to pig oocytes. J. Reprod. Fertil 113, 167–72.
Li, R., Norman, R.J., Armstrong, D.T. & Gilchrist, R.B. (2000). Oocyte-secreted factor(s) determine functional differences between bovine mural granulosa cells and cumulus cells. Biol. Reprod. 63, 839–45.
Lu, F., Shi, D., Wei, J., Yang, S. & Wei, Y. (2005). Development of embryos reconstructed by interspecies nuclear transfer of adult fibroblasts between buffalo (Bubalus bubalis) and cattle (Bos indicus). Theriogenology 64, 1309–19.
Ma, S., Lin, H., Miao, Y., Liu, X., Wang, B. & Dai, J. (2007). The effect of three-dimensional demineralized bone matrix on in vitro cumulus-free oocyte maturation. Biomaterials 28, 3198–207.
Maedomari, N., Kikuchi, K., Ozawa, M., Noguchi, J., Kaneko, H., Ohnuma, K., Nakai, M., Shino, M., Nagai, T. & Kashiwazaki, N. (2007). Cytoplasmic glutathione regulated by cumulus cells during porcine oocyte maturation affects fertilization and embryonic development in vitro. Theriogenology 67, 983–93.
Mermillod, P., Oussaid, B. & Cognie, Y. (1999). Aspects of follicular and oocyte maturation that affect the developmental potential of embryos. J. Reprod. Fertil. (Suppl.) 54, 449–60.
Miao, Y.L., Liu, X.Y., Qiao, T.W., Miao, D.Q., Luo, M.J. & Tan, J.H. (2005). Cumulus cells accelerate aging of mouse oocytes. Biol. Reprod. 73, 1025–31.
Norris, R.P., Ratzan, W.J., Freudzon, M., Mehlmann, L.M., Krall, J., Movsesian, M.A., Wang, H., Ke, H., Nikolaev, V.O. & Jaffe, L.A. (2009). Cyclic GMP from the surrounding somatic cells regulates cyclic AMP and meiosis in the mouse oocyte. Development 136, 1869–78.
Orisaka, M., Tajima, K., Tsang, B.K. & Kotsuji, F. (2009). Oocyte–granulosa–theca cell interactions during preantral follicular development. J. Ovarian. Res. 2, 9.
Schroeder, A.C. & Eppig, J.J. (1984). The developmental capacity of mouse oocytes that matured spontaneously in vitro is normal. Dev. Biol 102, 493–97.
Thomas, F.H. & Vanderhyden, B.C. (2006). Oocyte-granulosa cell interactions during mouse follicular development: regulation of kit ligand expression and its role in oocyte growth. Reprod. Biol Endocrinol. 4, 19.
Trounson, A., Anderiesz, C. & Jones, G. (2001). Maturation of human oocytes in vitro and their developmental competence. Reproduction 121, 51–75.
Vaccari, S., Horner, K., Mehlmann, L.M. & Conti, M. (2008). Generation of mouse oocytes defective in cAMP synthesis and degradation: endogenous cyclic AMP is essential for meiotic arrest. Dev. Biol. 316, 124–34.
Vanderhyden, B.C. & Armstrong, D.T. (1989). Role of cumulus cells and serum on the in vitro maturation, fertilization, and subsequent development of rat oocytes. Biol. Reprod. 40, 720–8.
Vanhoutte, L., Nogueira, D. & De Sutter, P. (2009). Prematuration of human denuded oocytes in a three-dimensional co-culture system: effects on meiosis progression and developmental competence. Hum. Reprod. 24, 658–69.
Wongsrikeao, P., Kaneshige, Y., Ooki, R., Taniguchi, M., Agung, B., Nii, M. & Otoi, T. (2005). Effect of the removal of cumulus cells on the nuclear maturation, fertilization and development of porcine oocytes. Reprod. Domest. Anim. 40, 166–70.
Wongsrikeao, P., Otoi, T., Murakami, M., Karja, N.W., Budiyanto, A., Murakami, M., Nii, M. & Suzuki, T. (2004). Relationship between DNA fragmentation and nuclear status of in vitro-matured porcine oocytes: role of cumulus cells. Reprod. Fertil. Dev. 16, 773–80.
Zhang, L., Jiang, S., Wozniak, P.J., Yang, X. & Godke, R.A. (1995). Cumulus cell function during bovine oocyte maturation, fertilization, and embryo development in vitro. Mol. Reprod. Dev. 40, 338–44.