TIGHT JUNCTION
Tight Junction Regulation
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TJ Protein
TJ Structure
TJ Function
TJ Environment
TJ Regulation
TJ Channel
TJ Maintenance
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Regulations of tight junctions are broadly used here to include regulations of barrier function (TER and flux), polarity function (apical-basal), as well as localization of tight junction proteins (occludin, ZO-1).  Clearly, the field needs to take an active role in establishing a consensus in defining the various functions of tight junctions.
Fast  (seconds to minutes):

- Extracellular domains of integral membrane proteins such as occludin, claudins, receptors, channels
- Calcium depletion (EDTA)
- Paprika
- Cayenne pepper
- Bay leaf

Medium (minutes to few hours):

- Neurotransmitters (glutamate, NMDA, & AMPA, dopamine)
- ATP depletion (dinitrophenol, antimycin A, deoxy-glucose)
- Protease (trypsin)
- Protease inhibitors (leupeptin)
- Lipids (sphingosines, alkylglycosides, oxidized lipids, ether lipids)

Slow (few hours to tens of hours):

- Aspirin
- Cytochalasin B & D
- Brefeldin A
- Latruculin
- Interleukin-1beta

Very Slow (days):

- Serotonin
- TGF (Transforming Growth Factor beta)
- Cytokines (Interferon gamma, Tumor Necrosis Factor alpha)
- Insulin & Insulin-like growth factor
- Caffeine
- Epinephrine
- Mineralcorticoids & Glucocorticoids
- Peptides corresponding to occludin second extracellular domain

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