ArticleBMC veterinary research2024
Morphological identification and distribution comparison of telocytes in pituitary gland between normal and cryptorchid yaks.
Article in BMC veterinary research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- The ultrastructural characterization and immunophenotypic features of telocytes in the myocardium and aortic bulb of young and adult Tibetan sheep.BMC veterinary research · 2026Article
- Identification and localization of telocyte-like cells in human umbilical cord stroma.Scientific reports · 2025Article
- Telocytes: history, origin, identification, structure, distribution, and functions.Histochemistry and cell biology · 2025Review
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6 authors.
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Abstract
backgroundTelocytes (TCs) is a novel type of interstitial cells in many mammals organs, which participate in the organizational metabolism, mechanical support, immunomodulation and other aspects. The aim of this study was to explore the organizational chemical characteristics of TCs in pituitary gland and their changes in cryptorchid yaks.
methodsTransmission electron microscopy (TEM), toluidine blue staining, immunofluorescence, qRT-PCR, and Western blotting may enable us to understand TCs distribution characteristics and biological functions.
resultTEM confirmed the presence of TCs in the pituitary gland with small bodies and moniliform telopodes (Tps). The Tps extending out from the cell body to the peri-sinusoidal vessels spaces, the number of Tps is closely related to the morphology of the nucleus. The most obvious changes of TCs in the pituitary gland of cryptorchid yaks is the Tps are relatively shorter and decreased secretory vesicles. H.E. and toluidine blue staining revealed that TCs not only distributed between the sinusoidal blood vessels and the glandular cell clusters, but also present on the surface of vascular endothelial cells. The co-expression of TCs biomarkers, such as Vimentin/CD34, CD117/CD34 and α-SMA/CD34, were evaluated by immunofluorescence to further determine the phenotypic characteristics of TCs. Besides, we analyzed the mRNA and protein expression of these biomarkers to determine the characteristics of TCs changes and possible biological roles. Both the mRNA and protein expression of CD117 were significantly higher in the pituitary gland of cryptorchid yaks than in the normal (p < 0.01), the protein expression of CD34 in the cryptorchid yaks was significantly higher than the normal (p < 0.01). There were no significant difference in mRNA expression of Vimentin and α-SMA (p>0.05), while the protein expression were significantly increased in the normal yaks (p < 0.05).
conclusionsIn summary, this study reports for the first time that the biological characteristics of TCs in yak pituitary gland. Although there is no significant change in the distribution characteristics, the changes in biological features of TCs in cryptorchid yaks are clear, suggesting that TCs participated in alteration in the local microenvironment of the pituitary gland. Therefore, our study provides clues for further investigating the role of TCs in the pituitary gland during the occurrence of cryptorchidism in yaks.
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