An Overview of Pituitary Follicular-Stellate Cells

Abstract

The pituitary gland is a small endocrine organ with an average weight of 0.5 grams, located on the bone structure called sella turcica at the base of the brain and surrounded by the diaphragmatic sella extension of the dura mater. Folliculo-stellate cells are one of the cells found in the pituitary gland. Unlike pituitary endocrine cells, these cells do not synthesize hormones. They have cytoplasmic extensions, similar to stellate cells found in the liver and pancreas. Light microscopic and electron microscopic studies have provided many data on these cells. However, although many morphological and functional features of these cells have been discovered in studies carried out to date, their basic functions are still not fully known. In this study, it is aimed to compile data on the general properties and functions of folliculo-stellate cells.

Keywords

• Pituitary gland
• adenohypophysis
• folliculo-stellate cell

Hipofiz Follikülo-Stellat Hücrelerine Genel Bir Bakış

Abstract

Hipofiz bezi, beyin tabanında sella tursika adı verilen kemik yapı üzerinde yer alan ve duramaterin diyafragma sella uzantısı ile çevrili olan ortalama 0.5 gram ağırlığında küçük bir endokrin organdır. Follikülo-stellat hücreler hipofiz bezinde yer alan hücrelerden biridir. Hipofizin endokrin hücrelerinin aksine bu hücrelerin hormon sentezleri yoktur. Karaciğer ve pankreasta bulunan stellat hücrelere benzer şekilde sitoplazmik uzantıları vardır. Işık mikroskobik ve elektron mikroskobik çalışmalar bu hücreler hakkında birçok veri sağlamıştır. Ancak günümüze kadar yapılan çalışmalarda bu hücrelerin birçok morfolojik ve fonksiyonel özelliği keşfedilmiş olsa da temel fonksiyonları halen tam olarak bilinememektedir. Bu çalışmada follikülo-stellat hücrelerin genel özellikleri ve fonksiyonları hakkındaki verilerin derlenmesi amaçlanmıştır.

Keywords

• Hipofiz
• adenohipofiz
• follikülo-stellat hücre

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