Development of synovial membrane in the temporomandibular joint of the human fetus

  • L.O. Carvalho de Moraes | luisotavio27@yahoo.com.br Federal University of São Paulo, Brazil.
  • R.C. Tedesco Federal University of São Paulo, Brazil.
  • L.A. Arraez-Aybar University Complutense of Madrid, Spain.
  • O. Klein University of California, San Francisco, United States.
  • J.R. Mérida-Velasco University Complutense of Madrid, Spain.
  • L.G. Alonso Federal University of São Paulo, Brazil.

Abstract

The development of the synovial membrane was analyzed in serial sections of 21 temporomandibular joints of human fetuses at 9 to 13 weeks of gestation. Sections of two fetuses at 12 weeks of development were used to perform immunohistochemical expression of the markers CD68 and Hsp27 on the synovial lining. Macrophage-like type A and fibroblast-like type B cells, which express CD68 and Hsp27, respectively, were observed at the twelfth week of development. Our results suggest that the development of the synovial membrane is related to the vascularization of the joint and the formation of the articular cavities.

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Author Biographies

L.O. Carvalho de Moraes, Federal University of São Paulo
Department of Morphology and Genetics
R.C. Tedesco, Federal University of São Paulo
Department of Morphology and Genetics
L.A. Arraez-Aybar, University Complutense of Madrid
Department of Anatomy and Embryology
O. Klein, University of California, San Francisco
Department of Orofacial Sciences and Program in Craniofacial and Mesenchymal Biology
J.R. Mérida-Velasco, University Complutense of Madrid
Department of Anatomy and Embryology
L.G. Alonso, Federal University of São Paulo
Department of Morphology and Genetics
Published
2015-11-26
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Section
Original Papers
Supporting Agencies
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Keywords:
Synovial membrane, immunohistochemistry, temporomandibular joint, fetus.
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How to Cite
Carvalho de Moraes, L., Tedesco, R., Arraez-Aybar, L., Klein, O., Mérida-VelascoJ., & Alonso, L. (2015). Development of synovial membrane in the temporomandibular joint of the human fetus. European Journal of Histochemistry, 59(4). https://doi.org/10.4081/ejh.2015.2569