Circulating inhibin forms in patients with hydatidiform mole

Area of Science:

• Reproductive Endocrinology
• Gynecologic Oncology
• Biomarker Discovery

Background:

• Hydatidiform mole (HM) is a gestational trophoblastic neoplasia.
• Circulating inhibin forms and pro-alphaC have not been previously evaluated in HM patients.
• Early identification of patients at risk for persistent trophoblastic disease (PTD) is crucial.

Purpose of the Study:

• To evaluate circulating inhibin A, inhibin B, pro-alphaC, and human chorionic gonadotropin (hCG) levels in patients with HM.
• To determine if these markers can predict the development of PTD after mole evacuation.

Main Methods:

• Serum samples were collected from HM patients before and after mole evacuation.
• Enzyme-linked immunosorbent assays (ELISA) were used to quantify inhibin A, inhibin B, pro-alphaC, and hCG.
• Levels were compared between HM patients and normal pregnancies, and between patients with spontaneous resolution versus PTD.

Main Results:

• Before evacuation, inhibin B was undetectable in HM, while inhibin A levels were similar to normal pregnancies.
• Pro-alphaC and hCG levels were significantly elevated in HM compared to normal pregnancies.
• After evacuation, pro-alphaC levels decreased in patients with spontaneous resolution but remained high in those who developed PTD.
• Elevated pro-alphaC and hCG post-evacuation were associated with PTD.

Conclusions:

• Circulating pro-alphaC and hCG are elevated in hydatidiform mole.
• Post-evacuation pro-alphaC levels may serve as a predictive biomarker for persistent trophoblastic disease.
• These findings contribute to understanding the endocrine changes in HM and PTD.