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Role of the NF-ATc transcription factor in morphogenesis of cardiac valves and septum

Abstract

In lymphocytes, the expression of early immune response genes is regulated by NF-AT transcription factors1,2 which translocate to the nucleus after dephosphorylation by the Ca2+-dependent phosphatase, calcineurin3. We report here that mice bearing a disruption in the NF-ATc gene fail to develop normal cardiac valves and septa and die of circulatory failure before day 14.5 of development. NF-ATc is first expressed in the heart at day 7.5, and is restricted to the endocardium, a specialized endothelium that gives rise to the valves and septum. Within the endocardium, specific inductive events appear to activate NF-ATc: it is localized to the nucleus only in endocardial cells that are adjacent to the interface with the cardiac jelly and myocardium, which are thought to give the inductive stimulus to the valve primordia4. Treatment of wild-type embryos with FK506, a specific calcineurin inhibitor5, prevents nuclear localization of NF-ATc. These data indicate that the Ca2+/calcineurin/NF-ATc signalling pathway is essential for normal cardiac valve and septum morphogenesis; hence, NF-ATc and its regulatory pathways are candidates for genetic defects underlying congenital human heart disease.

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Figure 1: Targeting of the NF-ATc gene.
Figure 2: NF-ATc expression is restricted to the endocardium, outflow tract and cardiac valves.
Figure 3: Active NF-ATc is expressed in a subset of endothelial cells lining the endocardial cushions and valves.
Figure 4: Cardiac valves and ventricular septum defects in NF-ATc3 mutant embryos.
Figure 5: FK506 treatment blocks NF-ATc nuclear import in the endocardium.

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References

  1. Shaw, J. P. et al. Identification of a putative regulator of early T cell activation genes. Science 241, 202–205 (1988).

    Article  ADS  CAS  Google Scholar 

  2. Flanagan, W. M., Corthesy, B., Bram, R. J. & Crabtree, G. R. Nuclear association of a T-cell transcription factor blocked by FK-506 and cyclosporin A. Nature 352, 803–807 (1991).

    Article  ADS  CAS  Google Scholar 

  3. Clipstone, N. A. & Crabtree, G. R. Identification of calcineurin as a key signalling enzyme in T-lymphocyte activation. Nature 357, 695–697 (1992).

    Article  ADS  CAS  Google Scholar 

  4. Eisenberg, L. M. & Markwald, R. R. Molecular regulation of atrioventricular valvuloseptal morphogenesis. Circ. Res. 77, 1–6 (1995).

    Article  CAS  Google Scholar 

  5. Liu, J. et al. Calcineurin is a common target of cyclophilin-cyclosporin A and FKBP-FK506 complexes. Cell 66, 807–815 (1991).

    Article  CAS  Google Scholar 

  6. Beals, C. R., Clipstone, N. A., Ho, S. N. & Crabtree, G. R. Nuclear localization of NF-ATc by a calcineurin-dependent, cyclosporin-sensitive intramolecular interaction. Genes Dev. 11, 824–834 (1997).

    Article  CAS  Google Scholar 

  7. Buck, C. A. et al. Cell adhesion receptors and early mammalian heart development: an overview. C. R. Acad. Sci. III 316, 838–859 (1993).

    CAS  PubMed  Google Scholar 

  8. Kirby, M. L., Gale, T. F. & Stewart, D. E. Neural crest cells contribute to normal aorticopulmonary septation. Science 220, 1059–1061 (1983).

    Article  ADS  CAS  Google Scholar 

  9. Runyan, R. B. et al. Signal transduction of a tissue interaction during embryonic heart development. Cell Regul. 1, 301–313 (1990).

    Article  CAS  Google Scholar 

  10. Gubbay, J. et al. Agene mapping to the sex-determining region of the mouse Y chromosome is a member of a novel family of embryonically expressed genes. Nature 346, 245–250 (1990).

    Article  ADS  CAS  Google Scholar 

  11. Schilham, M. W. et al. Defects in cardiac outflow tract formation and pro-B-lymphocyte expansion in mice lacking Sox-4. Nature 380, 711–714 (1996).

    Article  ADS  CAS  Google Scholar 

  12. Chang, H. Y. et al. Asymmetric retraction of growth cone filopodia following focal inactivation of calcineurin. Nature 376, 686–690 (1995).

    Article  ADS  CAS  Google Scholar 

  13. Bennett, P. C., Zhao, W., Lawen, A. & Ng, K. T. Cyclosporin A, an inhibitor of calcineurin, impairs memory formation in day-old chicks. Brain Res. 740, 107–117 (1996).

    Article  Google Scholar 

  14. Jain, J., McCaffrey, P. G., Valge-Archer, V. E. & Rao, A. Nuclear factor of activated T cells contains Fos and Jun. Nature 356, 801–804 (1992).

    Article  ADS  CAS  Google Scholar 

  15. O'Keefe, S. J., Tamura, J., Kincaid, R. L., Tocci, M. J. & O'Neill, E. A. FK-506- and CsA-sensitive activation of the interleukin-2 promoter by calcineurin. Nature 357, 692–694 (1992).

    Article  ADS  CAS  Google Scholar 

  16. Hoey, T., Sun, Y. L., Williamson, K. & Xu, X. Isolation of two new members of the NF-AT gene family and functional characterization of the NF-AT proteins. Immunity 2, 461–472 (1995).

    Article  CAS  Google Scholar 

  17. Ho, S. N. et al. NFATc3, a lymphoid-specific NFATc family member that is calcium-regulated and exhibits distinct DNA binding specificity. J. Biol. Chem. 270, 19898–19907 (1995).

    Article  CAS  Google Scholar 

  18. Hoffman, J. I. Incidence of congenital heart disease: II. prenatal incidence. Pediatr. Cardiol. 16, 155–165 (1995).

    Article  CAS  Google Scholar 

  19. Beals, C. R., Sheridan, C. M., Gardner, P. & Crabtree, G. R. Nuclear export of NF-ATc enhanced by glycogen synthase kinase-3. Science 275, 1930–1934 (1997).

    Article  CAS  Google Scholar 

  20. Northrop, J. P. et al. NF-AT components define a family of transcription factors targeted in T-cell activation. Nature 369, 497–502 (1994).

    Article  ADS  CAS  Google Scholar 

  21. Koop, K. E., MacDonald, L. M. & Lobe, C. G. Transcripts of Grg4, a murine groucho-related gene, are detected in adjacent tissues to other murine neurogenic gene homologues during embryonic development. Mech. Dev. 59, 73–87 (1996).

    Article  CAS  Google Scholar 

  22. Hui, C. C. & Joyner, A. L. Amouse model of greig cephalopolysyndactyly syndrome: the extra-toesJ mutation contains an intragenic deletion of the Gli3 gene. Nature Genet. 3, 241–246 (1993).

    Article  CAS  Google Scholar 

  23. Sassoon, D. A., Garner, I. & Buckingham, M. Transcripts of alpha-cardiac and alpha-skeletal actins are early markers for myogenesis in the mouse embryo. Development 104, 155–164 (1988).

    CAS  PubMed  Google Scholar 

  24. Trumpp, A., Blundell, P. A., de la Pompa, J. L. & Zeller, R. The chicken limb deformity gene encodes nuclear proteins expressed in specific cell types during morphogenesis. Genes Dev. 6, 14–28 (1992).

    Article  CAS  Google Scholar 

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Acknowledgements

L.A.T., H.T. and H.Y. contributed equally to this work. We thank C. Sirard, J. Cross, V. Stambolic and R. Hakem for critical reading of this manuscript, and H. Clever for the Sox-4 probe.

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Correspondence to Tak W. Mak.

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de la Pompa, J., Timmerman, L., Takimoto, H. et al. Role of the NF-ATc transcription factor in morphogenesis of cardiac valves and septum. Nature 392, 182–186 (1998). https://doi.org/10.1038/32419

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