Unterschiedliche Expressionsmuster von IGF-1, IGF-2 und IGF-1R in endometrialen Stromazellen während der Dezidualisierung sowie unter dem Einfluss von hCG
This study examined the differing expression patterns of IGF-1, IGF-2, and IGF-1R in endometrial stromal cells during decidualization and under the influence of hCG.
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The study investigated expression patterns of insulin-like growth factor (IGF)-1, IGF-2, and the IGF-1 receptor (IGF-1R) in human endometrial stromal cells during in vitro decidualization and after hCG exposure. Stromal cells isolated from hysterectomy specimens were decidualized with progesterone and estradiol, then incubated with recombinant hCG (0–100 U/ml) and analyzed at days 0, 6, and 9 using real-time RT-PCR for mRNA, ELISA for IGF-1/IGF-2 protein, and Western blot for IGF-1R. IGF-1 showed a rapid early increase (day 3) followed by a drop by day 6, while IGF-2 remained consistently reduced across the time course; hCG specifically reduced IGF-1 and decreased IGF-1R expression in decidualized cells without altering IGF-2. The paper’s findings are presented from an in vitro decidualization model, and it does not explicitly discuss endometriosis or adenomyosis—so this work was included in the corpus via an upstream keyword match rather than a direct disease focus. This paper does not explicitly discuss endometriosis or adenomyosis; it was included in the corpus via a keyword match in the upstream search index.
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