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Updated: May 18, 2026
11:31
Analysis of Protein-protein Interactions and Co-localization Between Components of Gap, Tight, and Adherens Junctions in Murine Mammary Glands
Published on: May 30, 2017
Membrane β-catenin and adherens junctions in early gonadal patterning
Alice Fleming1, Negar Ghahramani, Maggie Xiaoming Zhu
1Department of Human Genetics, David Geffen School of Medicine, University of California-Los Angeles, CA 90095, USA.
Summary
Adherens junctions (AJs) play a crucial role in mammalian gonad development. Their components, including beta-catenin and cadherins, show dynamic expression patterns essential for testis and ovary differentiation.
Area of Science:
- Developmental Biology
- Cell Biology
- Reproductive Biology
Background:
- Early mammalian gonad development from a bipotential state into testis or ovary is not fully understood.
- Sex-specific vascularization is vital, but mechanisms for forming specific compartments (e.g., interstitial vs. cord) remain unclear.
- Adherens junctions (AJs) are implicated in morphogenesis.
Purpose of the Study:
- To investigate the role of Adherens junction (AJ) components in sex-specific patterning of the developing mammalian gonad.
- To examine the expression patterns of β-catenin, p120 catenin, and cadherins during gonad differentiation.
Main Methods:
- Analysis of Adherens junction (AJ) component expression during early gonadal sex differentiation.
- Immunohistochemical examination of β-catenin, p120 catenin, and cadherin localization.
Main Results:
- Membrane-associated β-catenin and p120 catenin colocalize with cell-specific cadherins during gonadal sex differentiation.
- Expression patterns of AJ components were observed in both sex-nonspecific and sex-specific configurations.
- These patterns suggest Adherens junctions influence testis vs. ovary patterning via cell adhesion, sorting, and boundary formation.
Conclusions:
- Complex and dynamic expression patterns of Adherens junction components mirror gonadogenesis tissue patterning.
- Adherens junctions are potentially essential effectors in the patterning of the developing testis and ovary.
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