Granulosa Cells
Granulosa Cells - Related Videos
07:03
A Modified Co-Culture System for Understanding Granulosa-Theca Cell Interactions in the Bovine Ovary
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2025
This article presents a co-culture model of bovine theca and granulosa cells. This method has the potential to serve as a reliable foundation for analyses focused on the study of paracrine communication and substrate transport between the somatic cells within the follicle.
05:12
Rapid Isolation of Stage I Oocytes in Zebrafish Devoid of Granulosa Cells
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Cited by 1 •
2024
This protocol describes a modified procedure for rapidly isolating clean stage I oocytes in zebrafish devoid of granulosa cells, thereby providing a convenient method for oocyte-specific research.
05:36
A Tissue Culture Model of Estrogen-producing Primary Bovine Granulosa Cells
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Cited by 23 •
2018
A long-term culture model of bovine granulosa cells under serum-free conditions is described. This model allows researchers to study the effects of diverse factors and conditions as different plating densities on the characteristics of estrogen-producing bovine granulosa cells.
05:04
Separation of Avian Preovulatory Follicle Granulosa and Theca Cell Layers for Downstream Applications
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Cited by 2 •
2024
Here, we describe a protocol for separating yolk, granulosa cells, and theca cells in avian preovulatory follicles. This precision handling enables critical investigations into the role of these layers in reproductive function, aiding the understanding of follicular development, hormonal regulation, and disease research for enhanced agricultural yield and biomedical insights.
06:40
Collection of Human Follicular Fluid, Follicle Somatic Cells, and Immature Oocytes from Individuals Undergoing In Vitro Fertilization
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2025
This protocol outlines standardized methods to isolate and process follicular fluid, somatic cells, and immature oocytes from IVF procedures, enabling high-quality molecular and cellular analyses. These approaches support translational research into fertility, reproductive aging, and ovarian dysfunction using materials typically discarded in clinical care.
FAQs
Granulosa cells participate in bidirectional communication with the oocyte, allowing signals to move between the developing germ cell and its surrounding somatic environment. This interaction supports nutrient exchange and coordinates follicle growth. Because both cell types influence one another, changes in granulosa-cell behavior can affect oocyte development as well as the progression of the follicle.
Follicle-stimulating hormone promotes granulosa-cell proliferation and influences their support of follicle development. These cells also express aromatase, an enzyme that converts androgens supplied by theca cells into estrogens. Together, hormone responsiveness and steroid-conversion activity connect local follicular events with endocrine signaling, helping regulate the developmental environment surrounding the oocyte.
Granulosa-cell interactions with the oocyte and neighboring follicular cells change as the follicle develops. Those changes help regulate whether follicular growth continues, how the oocyte matures, and how the follicle responds during ovulation. Studying these dynamic relationships therefore links cellular communication with larger developmental outcomes, including follicle selection and reproductive timing.
Granulosa cells provide a cellular perspective on ovarian development because their proliferation, signaling, and steroid production occur alongside oocyte growth. Examining these activities helps researchers connect local follicle events with female reproductive development and endocrine regulation. This context is especially useful for investigating how normal follicle formation and maturation are established over time.
Changes in granulosa-cell function can be examined as part of the processes that disrupt follicle growth and ovarian development. Their roles in communication, nutrient exchange, proliferation, and estrogen production offer several points for relating cellular abnormalities to fertility problems or ovarian disease. This makes them informative for studying both developmental mechanisms and reproductive dysfunction.
Granulosa cells are relevant to assisted reproduction because their condition reflects processes that support follicle development and oocyte maturation. They are also studied in ovarian disease research, where altered follicular interactions or endocrine signaling may help explain abnormal development. Their position within the follicle connects developmental biology, fertility research, and investigations of ovarian disorders.