The Effect of Nitric Oxide on Apoptosis in Human Luteinized Granulosa Cells / 대한산부인과학회잡지
Korean Journal of Obstetrics and Gynecology
;
: 766-773, 2002.
Article
in Korean
| WPRIM
| ID: wpr-24930
ABSTRACT
OBJECTIVE:
To investigate the effect of nitric oxide on the apoptosis of human luteinized granulosa cells.METHODS:
Granulosa cell suspensions were incubated for 48 hours after adding nitric oxide donor (S-nitroso-N-acetyl-penicillamine, SNAP) and nitric oxide synthase inhibitor (nitro-L-arginine methyl ester, L-NAME) at different concentrations. Apoptosis was examined using a terminal deoxynucleotide transferase- mediated dUTP-biotin nick end labeling method, and immunocytochemical staining was performed for six apoptosis-related proteins.RESULTS:
Apoptotic rates were significantly lower in cells incubated in SNAP 0.5 mM, but higher in L-NAME 0.5, 1.0, and 5.0 mM. SNAP 0.5 mM lowered the expressions of Fas and p53 in granulosa cells, but Bcl-2 expression was increased, and Fas ligand or Bax remained unchanged. In L-NAME 0.5 and 5.0 mM, the expressions of p53 and Bax were increased, and Bcl-2 was unchanged. Fas/Fas ligands were also activated especially in L-NAME 5.0 mM.CONCLUSION:
Nitric oxide may inhibit apoptosis via decreased Fas and p53, and increased Bcl-2 expression in human luteinized granulosa cells.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Suspensions
/
Tissue Donors
/
Lutein
/
Apoptosis
/
Nitric Oxide Synthase
/
NG-Nitroarginine Methyl Ester
/
Fas Ligand Protein
/
Granulosa Cells
/
Ligands
/
Nitric Oxide
Limits:
Female
/
Humans
Language:
Korean
Journal:
Korean Journal of Obstetrics and Gynecology
Year:
2002
Type:
Article
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