Domestic Carnivore's Development: Detection of Oct-4, A Pluripotency Marker, in Pharyngeal Arches

Authors

  • KCS Roballo,

    1. Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, SP, Brazil
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  • ACM Ercolin,

    1. Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, SP, Brazil
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  • JB Casals,

    1. Sector of Animal Anatomy, Department of Surgery, Faculty of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, SP, Brazil
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  • NCG Pieri,

    1. Sector of Animal Anatomy, Department of Surgery, Faculty of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, SP, Brazil
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  • RSN Barreto,

    1. Sector of Animal Anatomy, Department of Surgery, Faculty of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, SP, Brazil
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  • MJ Illera,

    1. Department of Physiology, Veterinary, Complutense University of Madrid, Madrid, Spain
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  • DS Martins,

    1. Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, SP, Brazil
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  • MA Miglino,

    1. Sector of Animal Anatomy, Department of Surgery, Faculty of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, SP, Brazil
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  • CE Ambrósio

    Corresponding author
    • Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, SP, Brazil
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Author's address (for correspondence): Carlos E. Ambrósio, Rua Duque de Caxias Norte, 225, Campus da USP, Pirasssununga/SP, CEP 13635-900, Brazil. E-mail: ceambrosio@usp.br

Contents

Very few carnivore's embryology is reported mainly restricted to old literature without new technique analyses. Also, their development focuses on pharyngeal arches and stem cell sources and the high capacity for differentiation from those cells to generate embryonic tissue. We aimed to use immunohistochemistry to prove the potentiality of these stem cell niches. The results were to highlight the timetable for the development of dogs and cats, the proper formation of pharyngeal arches and the description of these cells on first and second arches since 17–25 days of pregnancy. After that, the differentiation process is reduced.

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