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Updated: Jul 20, 2026

Extraction, Labeling, and Purification of Lineage-Specific Cells from Human Antral Follicles
Published on: November 30, 2022
Integrins in the ovary
Danielle Monniaux1, Clotilde Huet-Calderwood, Frédérique Le Bellego
1Physiologie de la Reproduction et des Comportements, INRA-CNRS-Université de Tours-Haras Nationaux, INRA Nouzilly, France. monniaux@tours.inra.fr
Abstract:
Integrins are the major receptors mediating adhesion to the extracellular matrix. Following ligand binding, conformational changes of integrins induce the recruitment of multiple signaling and scaffolding proteins that connect integrin tails to the actin cytoskeleton and permit activation of signaling pathways regulating cell proliferation, apoptosis, differentiation, and migration. In the ovary, extracellular matrix components present in the follicular basement membrane, around follicular cells, and in the follicular fluid participate in the regulation of follicular development, and a role of integrins in this process is strongly suggested. We discuss available data on integrin expression in ovary, integrin function in granulosa cells, and the possible involvement of integrins in follicular growth, atresia, and luteinization. We also discuss the potential role of oocyte integrins as receptors for sperm ADAMs (a disintegrin and metalloproteinase) in fertilization and the cooperation of integrins with proteinases in regulating proliferation, adhesion, migration, and invasion of ovarian surface epithelium cells in ovarian tumor development.
Insights
Integrins, crucial cell adhesion receptors, play key roles in ovarian function, from follicular development and fertilization to tumor progression. Their involvement spans cell signaling, proliferation, and migration within the ovary.
Area of Science:
- Cell Biology
- Reproductive Biology
- Oncology
Background:
- Integrins are primary cell surface receptors mediating adhesion to the extracellular matrix.
- Ligand binding induces integrin conformational changes, recruiting signaling proteins and connecting to the actin cytoskeleton.
- Ovarian extracellular matrix components are vital for follicular development, suggesting a role for integrins.
Purpose of the Study:
- To review current data on integrin expression and function in the ovary.
- To explore the involvement of integrins in follicular growth, atresia, and luteinization.
- To discuss the potential roles of integrins in fertilization and ovarian tumor development.
Main Methods:
- Literature review and data synthesis on integrin expression and function in ovarian cells.
- Analysis of existing research on integrin involvement in ovarian physiological and pathological processes.
- Discussion of integrin interactions with extracellular matrix and other proteins.
Main Results:
- Integrins are expressed in the ovary and influence granulosa cell function.
- Integrins are implicated in regulating follicular development, atresia, and luteinization.
- Oocyte integrins may act as receptors for sperm ADAMs, and integrins cooperate with proteinases in ovarian tumor progression.
Conclusions:
- Integrins are critical regulators of diverse ovarian functions, including development, reproduction, and disease.
- Further research into integrin signaling pathways in the ovary is warranted.
- Targeting integrins may offer therapeutic strategies for ovarian pathologies.
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