J Korean Med Sci.  2002 Apr;17(2):213-216. 10.3346/jkms.2002.17.2.213.

Differential Expressions of Fas and Fas Ligand in Human Placenta

Affiliations
  • 1Department of Obstetrics and Gynecology, Samsung Medical Center, and Center for Clinical Research, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea. crroh@smc.samsung.co.kr

Abstract

To investigate the expressions of Fas and Fas ligand (FasL) in human placenta, we studied the expressions of Fas and FasL in placenta with RT-PCR, immunoblotting and immunostaining. We observed amplified products of Fas and FasL transcripts, the band of Fas (52 kDa) and multiple bands of FasL (42-52 kDa) in pla-centa. Fas and FasL localized mainly on fetal vessels and on syncytiotrophoblasts respectively. The differential distribution of Fas and FasL in human placenta may reflect intrinsic expressions of them by trophoblasts during differentiation. The increased expression of Fas in trophoblasts may promote apoptosis of placenta in pathologic condition such as preeclampsia.

Keyword

Fas; Fas ligand; Placenta; Trophoblast

MeSH Terms

Antigens, CD95/biosynthesis/*genetics
Fas Ligand Protein
*Gene Expression
Gene Expression Profiling
Glycosylation
Humans
Immunoblotting/methods
Membrane Glycoproteins/biosynthesis/*genetics
Placenta/*metabolism
Reverse Transcriptase Polymerase Chain Reaction
Trophoblasts/cytology/metabolism
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