PMID: 9652151Jul 4, 1998Paper

Immunohistochemical demonstration of cytoskeletal proteins in the testis of the Japanese black bear, Ursus thibetanus japonicus

Anatomia, histologia, embryologia
T KomatsuY Suzuki

Abstract

The seasonal changes of the cytoskeletal protein expressions were immunohistochemically investigated in the testes of Japanese black bear, Ursus thibetanus japonicus. A strong immunoreaction for alpha-smooth muscle actin is restricted to the vascular smooth muscle cells and the peritubular cells which surround the seminiferous tubules by several layers throughout the year. Weak immunoreactions for B4 antigen and desmin were observed in the vascular smooth muscle cells and in a part of peritubular cells throughout the year. A strong immunoreaction for vimentin was also detected in the fibroblasts and Leydig cells, in addition to the vascular smooth muscle and epithelial cells and the peritubular cells throughout the year. A strong alpha-tubulin immunoreaction was detected in the elongating spermatids during the acrosome phase of spermiogenesis in May and June. The cytoplasm of several Sertoli cells was faintly immunoreacted for vimentin in the basal and lateral region, while an intense alpha-tubulin reaction was seen in the entire cytoplasm in May, April and June. In November, January and March, the immunoreactions for vimentin and alpha-tubulin strongly accumulate in a perinuclear region of Sertoli cells when developmental sper...Continue Reading

References

May 1, 1992·The Anatomical Record·F PalombiM Stefanini
Nov 1, 1990·Cell and Tissue Research·M S DavidoffK Seidl
Jan 1, 1988·Cell Motility and the Cytoskeleton·J L Lessard
Jan 1, 1988·Cell Motility and the Cytoskeleton·N M SawtellJ L Lessard
Apr 1, 1996·The Journal of Veterinary Medical Science·T KomatsuY Suzuki

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Citations

Nov 19, 2005·The Journal of Reproduction and Development·Bhuminand DevkotaYoh-Ichi Miyake
Feb 5, 2015·The Journal of Veterinary Medical Science·Tsukasa OkanoManabu Onuma

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