Interaction of Melatonin and BMP-6 in Ovarian Steroidogenesis.
Study Goal
The researchers aimed to determine whether melatonin could counteract the inhibitory effects of BMP-6 on progesterone production in granulosa cells, potentially preserving ovarian function.
Results Summary
Melatonin treatment impaired BMP-6's inhibition of FSH-induced progesterone production and suppressed BMP-6-induced Smad signaling in granulosa cells, suggesting a regulatory role in BMP receptor signaling. This indicates melatonin may help maintain progesterone production by suppressing BMP-6 signaling, particularly relevant in conditions like polycystic ovary syndrome.
Population
Granulosa cells (in vitro study)
Effective Dosage
Not specified
Duration
Not specified
Interactions
None mentioned
| Intervention | Direction | Endpoint | Population | Dosage | Impact | Claim # |
|---|---|---|---|---|---|---|
BMP-6 | decrease | follicle-stimulating hormone (FSH) actions | - | - | exert an inhibitory effect | #1 |
BMP-6 | decrease | adenylate cyclase activity downstream of the FSH receptor | - | - | suppressing | #2 |
melatonin treatment | decrease | inhibition of FSH-induced progesterone production by BMP-6 | granulosa cells | - | impaired | #3 |
melatonin | decrease | intracellular Smad signaling induced by BMP-6 | granulosa cells | - | suppressed | #4 |
melatonin | neutral | BMP receptor signaling | granulosa cells | - | has a regulatory role | #5 |
- | increase | expression of BMP-6 in granulosa cells | patients with polycystic ovary syndrome | - | increased | #6 |
melatonin | increase | progesterone production | - | - | play an important role in the maintenance | #7 |
melatonin | decrease | BMP-6 signaling | - | - | suppressing | #8 |
melatonin | increase | ovarian function | - | - | leading to the preservation | #9 |
The bone morphogenetic protein (BMP) system in the ovary plays a physiological role as a luteinization inhibitor in growing follicles. BMP-6 secreted from oocytes and granulosa cells can exert an inhibitory effect on follicle-stimulating hormone (FSH) actions by suppressing adenylate cyclase activity downstream of the FSH receptor. The inhibition of FSH-induced progesterone production by BMP-6 is impaired by melatonin treatment in granulosa cells. Intracellular Smad signaling induced by BMP-6 is suppressed by melatonin, suggesting that melatonin has a regulatory role in BMP receptor signaling in granulosa cells. Since the expression of BMP-6 in granulosa cells is increased in patients with polycystic ovary syndrome, melatonin may play an important role in the maintenance of progesterone production by suppressing BMP-6 signaling, leading to the preservation of ovarian function.