Tight junction and polarity interaction in the transporting epithelial phenotype
Marcelino Cereijido1, Rubén G Contreras, Liora Shoshani
1Department of Physiology, Biophysics and Neurosciences, CINVESTAV, AP 14-740, México D.F. 07000, México. cereijido@fisio.cinvestav.mx
Biochimica Et Biophysica Acta
|November 22, 2007
Summary
Cellular machinery controls tight junctions and cell polarity, crucial for epithelial cells. These dynamic structures regulate cell communication and membrane domains across species and cell types.
Area of Science:
- Cell Biology
- Molecular Biology
- Physiology
Background:
- Epithelial cells develop complex machinery for cell polarity and tight junctions.
- Tight junctions regulate paracellular pathways, membrane domains, and cell-cell communication.
- Polarity and tight junction machinery are conserved across diverse species and cell types, including epithelia, neurons, and lymphocytes.
Purpose of the Study:
- To elucidate the intricate cellular machinery governing tight junction and cell polarity development.
- To understand the dynamic nature of polarization and tight junctions in various biological contexts.
Main Methods:
- The abstract does not specify methods.
Main Results:
- Tight junctions function as gates for paracellular transport, fences for membrane domain identity, and bridges for intercellular communication.
- Cell polarity and tight junction machinery are conserved from yeast to mammals.
- These cellular features are dynamic, adapting to developmental changes, physiological stimuli, and pathological conditions like infection.
Conclusions:
- The development and function of tight junctions and cell polarity are orchestrated by conserved, dynamic cellular machinery.
- This machinery responds to environmental cues and plays critical roles in diverse cell types and physiological states.
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