Adiponectin and its receptors modulate granulosa cell and cumulus cell functions, fertility, and early embryo development in the mouse and human.
OBJECTIVE
To study the expression and function of adiponectin and its receptors in mouse and human follicle cells and in early embryo development.


METHODS
Whole ovaries, granulosa cells, and cumulus-oocyte complexes isolated from immature mice before and during hormone-induced ovulation were used to analyze the expression of adiponectin, its receptors, and ovulation-related genes; human cumulus cells and granulosa cells were isolated from patients undergoing in vitro fertilization (IVF) procedures.


METHODS
Multicenter.


METHODS
Women in IVF programs in Japan and the United States.


METHODS
None.


METHODS
Expression of adiponectin receptors and fertility.


RESULTS
Adiponectin expression is absent/low in mouse and human granulosa cells and cumulus cells. Adiponectin receptors are hormonally regulated in mouse granulosa and cumulus cells in vivo and in culture. Adiponectin differentially alters the expression of Adipor1/Adipor2 as well as genes related to steroidogenesis, ovulation, and apoptosis in cumulus cells versus granulosa cells. Adiponectin enhances oocyte maturation and early embryo development in mouse and human IVF procedures.


CONCLUSIONS
Adiponectin can modulate not only follicle growth but also embryo development in mice and humans.
Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA. joanner@bcm.edu
JoAnne S
JS
Richards
Zhilin
Z
Liu
Tomoko
T
Kawai
Kei
K
Tabata
Hirohiko
H
Watanabe
Deepa
D
Suresh
Fang-Ting
FT
Kuo
Margareta D
MD
Pisarska
Masayuki
M
Shimada
D052242:Adiponectin / Q000378:metabolism / Q000502:physiology*; D000818:Animals; D002478:Cells, Cultured; D054885:Cumulus Cells / Q000378:metabolism* / Q000502:physiology; D047108:Embryonic Development / Q000502:physiology*; D005260:Female; D005298:Fertility / Q000502:physiology*; D006107:Granulosa Cells / Q000378:metabolism* / Q000502:physiology; D006801:Humans; D051379:Mice; D008810:Mice, Inbred C57BL; D054315:Oocyte Retrieval / Q000379:methods; D054419:Receptors, Adiponectin / Q000502:physiology*
C475418:ADIPOR1 protein, human; C475420:ADIPOR2 protein, human; D052242:Adiponectin; D054419:Receptors, Adiponectin