Elucidating the principles of the molecular organization of heteropolymeric tight junction strands.
Elucidating the principles of the molecular organization of heteropolymeric tight junction strands.
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DOI:
10.1007/s00018-011-0680-z
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发表时间:
2011-12
影响因子:
8
通讯作者:
Blasig, Ingolf E.
中科院分区:
文献类型:
--
作者:
Piontek, Joerg;Fritzsche, Susanne;Cording, Jimmi;Richter, Sandra;Hartwig, Jens;Walter, Maria;Yu, Dan;Turner, Jerrold R.;Gehring, Claudia;Rahn, Hans-Peter;Wolburg, Hartwig;Blasig, Ingolf E.
Paracellular barrier properties of tissues are mainly determined by the composition of claudin hetero-polymers. To analyze the molecular organization of tight junctions (TJ), we investigated the ability of claudins (Cld) to form homo- and heteromers. Cld1, -2, -3, -5, and -12 expressed in cerebral barriers were investigated. TJ-strands were reconstituted by claudin-transfection of HEK293-cells. cis-Interactions and/or spatial proximity were analyzed by fluorescence resonance energy transfer inside and outside of strands and ranked: Cld5/Cld5 > Cld5/Cld1 > Cld3/Cld1 > Cld3/Cld3 > Cld3/Cld5, no Cld3/Cld2. Classic Cld1, -3, and -5 but not non-classic Cld12 showed homophilic trans-interaction. Freeze-fracture electron microscopy revealed that, in contrast to classic claudins, YFP-tagged Cld12 does not form homopolymers. Heterophilic trans-interactions were analyzed in cocultures of differently monotransfected cells. trans-Interaction of Cld3/Cld5 was less pronounced than that of Cld3/Cld1, Cld5/Cld1, Cld5/Cld5 or Cld3/Cld3. The barrier function of reconstituted TJ-strands was demonstrated by a novel imaging assay. A model of the molecular organization of TJ was generated.
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影响因子:
3.7
作者:
Banning C;Votteler J;Hoffmann D;Koppensteiner H;Warmer M;Reimer R;Kirchhoff F;Schubert U;Hauber J;Schindler M
通讯作者:
Schindler M
影响因子:
7.8
作者:
Sekar, Rajesh Babu;Periasamy, Ammasi
通讯作者:
Periasamy, Ammasi
影响因子:
7.8
作者:
Nitta, T;Hata, M;Tsukita, S
通讯作者:
Tsukita, S
DOI:
10.1083/jcb.147.1.185
发表时间:
1999-10-04
期刊:
The Journal of cell biology
影响因子:
--
作者:
Morita K;Sasaki H;Furuse M;Tsukita S
通讯作者:
Tsukita S
DOI:
10.1152/ajplung.00182.2003
发表时间:
2003-11-01
影响因子:
4.9
作者:
Coyne, CB;Gambling, TM;Johnson, LG
通讯作者:
Johnson, LG