Culture and Identification of Granulosa Cells from Rat Ovary
XU Chuan1, SHU Wei-qun1,, ZHANG Liang1, CAO Jia2, ZHOU Xin3
(1. Department of Environmental Hygiene, School of
Military Preventive Medicine, Third Military Medical University,
Chongqing 400038; 2. Department of Toxicology, School of Military
Preventive Medicine, Third Military Medical University, Chongqing
400038; 3.Institute of Burn Research, Southwestern Hospital,Third
Military Medical University, Chongqing 400038,China)
中圖分類號:R730.45文獻標識碼: A 文章編號:1004-616X(2009)03-0234-04
【ABSTRACT】 BACKGROUND AND AIM: To obtain and identify cultured
granulosa cells from the ovary of rats so as to establish a convenient
and stable experimental model. MATERIALS AND METHODS: Female SD rats
were subcutaneously treated with pregnant mare serum gonadotropin
(PMSG). Forty-eight hours after dosing with PMSG, the animals were
decapitated and the ovaries were aseptically removed. Granulosa cells
were then released by mechanical method, trypsin digestion and low-speed
centrifugation separation were used for granulosa cells isolation.
Granulosa cells were diluted and incubated in fresh DMEM-Ham's F-12
medium (1∶1) containing 15% of fetal bovine serum at 37 ℃ in
water-saturated environment of 5% CO2. Hematoxylin & Eosin (HE) and
immunohistochemical staining of FSHR were used for ovarian granulosa
cell identification. Additionally, the growth curves of granulosa cells
and hormone levels at different incubation times were evaluated as well.
RESULTS: Over 95% of the cultured cells were ovarian granulosa
cells.The exponential phase of growth was between 48 and 96 hours of
incubation. CONCLUSION: More than 95% of highly purified granulosa cells
could be obtained by mechanical method combined with trypsin digestion
and low-speed centrifugation. Moreover, identifications of granulosa
cells by HE and FSHR staining were quick and convenient approaches.