| Subcellular localization of nuclear factor kappa B in term human fetal membranes and myometrium during labor. |
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Suk Joo Choi, Seong O Moon, Hyung Sun Kim, Soo Young Oh, Cheong Rae Roh, Jong Hwa Kim |
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Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. jh369.kim@samsung.com |
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| Abstract |
OBJECTIVE
To investigate the subcellular localization of nuclear factor kappa B (NF-kappa B) in term human fetal membranes and myometrium during labor. METHODS: Fetal membranes and myometrial tissue were collected from term pregnant women undergoing cesarean delivery after labor (n=4) and before labor (n=4). An immunostaining was done with NF-kappa B p65 antibody. The intensity and distribution of nuclear immunostaining of NF-kappa B p65 subunit were evaluated visually using a semiquantitative analysis. RESULTS: NF-kappa B p65 was present in all tissues studied, and it was localized principally in the cytoplasm of cells of amnion and chorion. But, NF-kappa B p65 was localized more abundant in the nucleus than in the cytoplasm in myometrial cells. In amnion, chorion and myometrium, the staining scores of nuclear NF-kappa B did not show any difference between the after-labor group and before-labor group. CONCLUSION: In human term gestational tissues, subcellular localization of NF-kappa B showed cytoplasmic predominance in amnion and chorion, and nuclear predominance in myometrium. But these subcellular localizations did not change during labor. |
| Key Words:
NF-kappa B, Myometrium, Fetal membranes, Labor |
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