Human chorionic gonadotropin confers resistance to oxidative stress–induced apoptosis in decidualizing human endometrial stromal cells  

Oleh:

Kajihara, Takeshi ; Uchino, Satomi ; Suzuki, Motoharu ; Itakura, Atsuo ; Ishihara, Osamu

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Fertility and Sterility (keterangan: ada di ClinicalKey) vol. 95 no. 04 (Mar. 2011), page 1302-1307.
Topik: ENDOMETRIOTIC; Decidualization; hCG; FOXO1; SOD2; oxidative stress

Ketersediaan

Perpustakaan FK Nomor Panggil: F02.K.2011.03 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

Objective To investigate the effect of hCG on the expression of genes involved in oxidative stress resistance observed in decidualizing human endometrial stromal cells (HESCs). Design In vitro experiment. Setting Saitama Medical University hospital. Patient(s) Premenopausal women undergoing hysterectomy for myoma uteri. Intervention(s) HESCs from hysterectomy specimens were isolated and incubated with 8-bromo–cyclic adenosine monophosphate and medroxyprogesterone acetate in the presence or absence of recombinant hCG (rhCG) at various concentrations. Hydrogen peroxide was used as the source of reactive oxygen species (ROS). Main Outcome Measure(s) Apoptotic cells, FOXO1, superoxide dismutase 2 (SOD2), Bax, and Bcl-2 protein expression. Result(s) In a dose-dependent manner, rhCG conferred additional protection to decidualizing HESCs against oxidative stress–induced apoptosis. In parallel, rhCG augmented the expression of the forkhead transcription factor FOXO1 and its downstream target, the ROS scavenger SOD2. rhCG also inhibited the expression of the proapoptotic Bax protein and up-regulated antiapoptotic Bcl-2 levels in decidualizing HESCs exposed to ROS. Conclusion(s) The data suggest that hCG might improve the uterine environment upon implantation by suppressing apoptotic responses in the maternal decidua under oxidative stress.

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