Journals / İstanbul Üniversitesi Veteriner Fakültesi Dergisi / 2016 / Cilt: 42 - Sayı: 2

Localizations of ?-SMA, S-100 Protein and Their Subunits in the Lacrimal Glands of the Rats

Sıçanların Lakrimal Bezlerinde ?-SMA, S-100 Protein ve Alt Ünitelerinin Lokalizasyonları

Pages
161–170
Publication Date
2022-10-18
DOI
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In conclusion, the differences detected between wbS-100, S-100? and S-100? proteins in all structural components of intraorbital and extraorbital lacrimal glands in terms of immunohistochemical staining density suggest that there is a functional difference between both lacrimal glands with respect to the secretory activity.

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Objective & Hypothesis:Localizations of ?-SMA, S-100 Protein and Their Subunits in the Lacrimal Glands of the Rats This study is intended to reveal immunohistochemical localizations of ?-SMA and calcium binding wbS-100, S-100? and S-100? proteins in intraorbital and extraorbital lacrimal gland of adult male rats.
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Key Findings & Data:After extraorbital and intraorbital sections of the lacrimal gland were extracted from the rats under anesthesia, Streptavidin-biotin-peroxidase immunohistochemical technique to determine wbS-100, S-100?, S-100? and ?-SMA proteins were applied to the 4-?m sections taken from the tissue samples blocked following the routine histological procedure.
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Conclusion & Impact:In conclusion, the differences detected between wbS-100, S-100? and S-100? proteins in all structural components of intraorbital and extraorbital lacrimal glands in terms of immunohistochemical staining density suggest that there is a functional difference between both lacrimal glands with respect to the secretory activity.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Localizations of ?-SMA, S-100 Protein and Their Subunits in the Lacrimal Glands of the Rats This study is intended to reveal immunohistochemical localizations of ?-SMA and calcium binding wbS-100, S-100? and S-100? proteins in intraorbital and extraorbital lacrimal gland of adult male rats. After extraorbital and intraorbital sections of the lacrimal gland were extracted from the rats under anesthesia, Streptavidin-biotin-peroxidase immunohistochemical technique to determine wbS-100, S-100?, S-100? and ?-SMA proteins were applied to the 4-?m sections taken from the tissue samples blocked following the routine histological procedure. Immunoreaction of wbS-100, S-100? and S-100? was determined both in cytoplasm and nucleus of the acinus epithelium, duct epithelium, myoepithelial and endothelial cells of extraorbital lacrimal gland. While S-100? immunoreaction in all structural components of the intraorbital gland was most densely observed in the nucleus, S-100? immunoreaction was negative in myoepithelial cells. Moreover, it is detected that wbS-100 immunreaction was positive in the lateral membranes of acinus epithelial cells of extraorbital gland and wbS100 and S-100? immunoreaction was positive in the lateral membranes of acinus and duct epithelial cells of intraorbital gland. ?-SMA immunoreaction was detected in the myoepithelial cells and the smooth muscle cells in the wall of blood vessels of both glands. In conclusion, the differences detected between wbS-100, S-100? and S-100? proteins in all structural components of intraorbital and extraorbital lacrimal glands in terms of immunohistochemical staining density suggest that there is a functional difference between both lacrimal glands with respect to the secretory activity.

Özet

Bu çalışma, erişkin erkek sıçanların intraorbital ve ekstraorbital lakrimal bezinde kalsiyum bağlayan wbS-100, S-100? ve S-100? proteinleri ile ?-SMA'nın immunohistokimyasal lokalizasyonlarını ortaya koymak amacıyla planlandı. Sıçanlardan anestezi altında lakrimal bezin ekstraorbital ve intraorbital kısımları çıkartıldıktan sonra rutin histolojik prosedürü takiben bloklanan doku örneklerinden alınan 4 ?m kalınlığındaki kesitlere wbS-100, S-100?, S-100? ve ?-SMA proteinlerini belirlemek için Streptavidin-biotin-peroksidaz immunohistokimyasal teknik uygulandı. Ekstraorbital lakrimal bezin asinus epiteli, akıtıcı kanal epiteli, miyoepitel ve endotel hücrelerinin hem sitoplazmasında hem de çekirdeğinde wbS-100, S-100? ve S-100? immunreaksiyonuna rastlandı. İntraorbital bezin bütün yapısal komponentlerinde S100? immunreaksiyonu en yoğun derecede çekirdekte gözlenirken, S-100? immunreaksiyonu miyoepitel hücrelerinde negatifti. Aynı zamanda ekstraorbital bezin asinus epitel hücrelerinin lateral membranlarında wbS-100 immunreaksiyonu, intraorbital bezin asinus epiteli ve akıtıcı kanal epitel hücrelerinin lateral membranlarında ise wbS100 ve S-100? immunreaksiyonu belirlendi. Her iki bezin miyoepitel hücreleri ile kan damarlarının duvarında yer alan düz kas hücrelerinde ?SMA immunreaksiyonu saptandı. Sonuç olarak, intraorbital ve ekstraorbital lakrimal bezlerin bütün yapısal komponentlerinde wbS-100, S-100? ve S-100? proteinleri arasındaki immunohistokimyasal boyanma yoğunluğu açısından tespit edilen bu farklılıkların her iki lakrimal bez arasında salgı aktivitesi ile ilgili fonksiyonel farklılığın olduğu düşüncesini akla getirmektedir.

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Cite This Article

LİMAN, N., ALAN, E. (2022). Localizations of ?-SMA, S-100 Protein and Their Subunits in the Lacrimal Glands of the Rats. İstanbul Üniversitesi Veteriner Fakültesi Dergisi, Cilt: 42 - Sayı: 2, 161–170. https://ajindex.com/articles/555050

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