Postnatal Development Changes in Immunohistochemical Localization of α-Smooth Muscle Actin (SMA) and Vimentin in Bovine Testes

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  • DEVKOTA Bhuminand
    Department of Clinical Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University Laboratory of Theriogenology, Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine Institute of Agriculture and Animal Science, Tribhuvan University, Rampur Campus
  • SASAKI Motoki
    Department of Clinical Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University Laboratory of Anatomy, Department of Basic Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine
  • TAKAHASHI Ken-Ichi
    Genetics Hokkaido
  • MATSUZAKI Shigenori
    Genetics Hokkaido
  • MATSUI Motozumi
    Department of Clinical Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University Laboratory of Theriogenology, Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine
  • HANEDA Shingo
    Department of Clinical Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University Laboratory of Theriogenology, Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine
  • TAKAHASHI Masahiro
    Technical Research Center, Koiwai Noboku Co., Ltd.
  • OSAWA Takeshi
    Department of Clinical Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University Laboratory of Theriogenology, Department of Veterinary Medicine, Iwate University
  • MIYAKE Yoh-Ichi
    Department of Clinical Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University Laboratory of Theriogenology, Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine

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タイトル別名
  • Postnatal Developmental Changes in Immunohistochemical Localization of .ALPHA.-Smooth Muscle Actin (SMA) and Vimentin in Bovine Testes
  • Postnatal Development Changes in Immunohistochemical Localization of アルファ Smooth Muscle Actin SMA and Vimentin in Bovine Testes

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The present study demonstrates the postnatal developmental changes in immunohistochemical localization of α-smooth muscle actin (SMA) and vimentin in the bovine testis. In the peritubular myoid cells of seminiferous tubules and the sub-epithelial and stromal cells of straight tubules and the rete testis, α-SMA starts appearing at around 4 months of age. Peritubular α-SMA attains the continuous mature pattern at around 5 months of age whereas sub-epithelial and stromal α-SMA increases with advancing age. Vimentin is localized in the perinuclear zone of Sertoli cells, peritubular and vascular wall cells, a few interstitial cells, and in the basal part of the epithelia of straight and rete tubules. Developmental changes are only evident in the Sertoli cell vimentin, which is basal and weak at birth and increases moderately until 4 months of age. From around 5 to 8 months of age when the Sertoli cells are under morphological transformation, vimentin intensity is considerably increased and the characteristic vimentin extensions connect the Sertoli nuclei to the basal membrane. These extensions get shorter at around 9 month of age as the Sertoli nuclei are positioned basally. The mature Sertoli cell perinuclear vimentin is strong and stable without infranuclear extension. In conclusion, the age of appearance of α-SMA coincides with the onset of postnatal division of spermatogonia, and vimentin may play a key role in stabilizing Sertoli cell nuclei during their transformation in bovine.<br>

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