Stem Cell Therapies for Ovarian Function Restoration

Restoration of ovarian function through stem cell-based interventions addresses a critical unmet need in women affected by premature ovarian insufficiency or chemotherapy-induced ovarian damage. Mesenchymal stem cells (MSCs) from a variety of sources—including placenta, umbilical cord, amniotic fluid and menstrual blood—exert reparative effects primarily via paracrine mechanisms. Secreted factors and extracellular vesicles mitigate granulosa cell apoptosis, promote angiogenesis and modulate local immune responses, thereby supporting follicular survival and endocrine recovery. Recent advances have further elucidated the roles of exosomal microRNAs and hormone-primed secretomes in fine-tuning tissue regeneration and restoring circadian regulation of ovarian clocks. Preclinical models demonstrate improved follicle counts, normalisation of estrous or menstrual cycles and recovery of oestradiol and FSH profiles. These findings underscore the translational potential of cell-free and cell-based approaches to preserve fertility and endocrine health on a global scale.

Research from Nature Portfolio

Foundational work has shown that exosomes derived from amniotic fluid stem cells deliver microRNAs—most notably miR-10a—that directly inhibit apoptotic pathways in chemotherapy-damaged granulosa cells, preserving follicular architecture in treated mice. Complementary studies using exosomes from human umbilical cord MSCs have demonstrated protection of granulosa cells in vitro by upregulating anti-apoptotic proteins (such as Bcl-2) and downregulating cleaved caspase-3, suggesting a conserved mechanism of exosomal cargo in rescuing ovarian microstructures and function.

Stem Cell Therapies for Ovarian Function Restoration publication trend

The graph below shows the total number of articles in stem cell therapies for ovarian function restoration across all publications each year (not limited to Nature Index journals).

Technical terms

Mesenchymal stem cells (MSCs):Multipotent stromal cells capable of differentiating into diverse lineages and secreting trophic factors.

Exosomes:Nano-sized extracellular vesicles (30–150 nm) that mediate intercellular communication via transfer of proteins, lipids and RNAs.

Secretome:The ensemble of soluble factors and vesicles released by cells, including cytokines, growth factors and nucleic acids.

Granulosa cells:Somatic ovarian cells that surround developing oocytes, essential for follicle maturation and hormone synthesis.

Premature ovarian insufficiency (POI):Early onset decline of ovarian follicle reserve and endocrine function before the age of 40.

M6A demethylation:The enzymatic removal of methyl groups from N6-methyladenosine in RNA, affecting its stability and translational efficiency.

Circadian rhythm:Endogenous ~24-hour cycles that regulate physiological processes, including ovarian hormone secretion.

References

1. Secretome from estrogen-responding human placenta-derived mesenchymal stem cells rescues ovarian function and circadian rhythm in mice with cyclophosphamide-induced primary ovarian insufficiency. Journal of Biomedical Science (2024).
2. M6A demethylase FTO-stabilized exosomal circBRCA1 alleviates oxidative stress-induced granulosa cell damage via the miR-642a-5p/FOXO1 axis. Journal of Nanobiotechnology (2024).
3. Exosomal miR-10a derived from amniotic fluid stem cells preserves ovarian follicles after chemotherapy. Scientific Reports (2016).
4. Exosomes derived from human umbilical cord mesenchymal stem cells protect against cisplatin-induced ovarian granulosa cell stress and apoptosis in vitro. Scientific Reports (2017).