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Структурно-функциональная характеристика звездчатых клеток печени в динамике фиброза

Структурно-функциональная характеристика звездчатых клеток печени в динамике фиброза

Abstract

Проведен ультраструктурный, иммуногистохимический и морфометрический анализ популяции звездчатых клеток печени в динамике развития фиброза и цирроза инфекционно-вирусного генеза. Выявлена фиброгенная активация звездчатых клеток печени, которая характеризуется редукцией липидных капель и синхронной экспрессией фибробластоподобных характеристик позитивной иммуногистохимической реакцией на гладкомышечный α-актин, гиперплазией гранулярной цитоплазматической сети и перицеллюлярным формированием многочисленных коллагеновых фибрилл. Показано, что, несмотря на прогрессирующее уменьшение численной плотности липидосодержащих звездчатых клеток при развитии фиброза, сохраняется необходимость поддержания функции депонирования ретиноидов при циррозе печени в фиброзных септах и внутри долек обнаружены липидосодержащие звездчатые клетки. Сделано заключение, что звездчатые клетки печени полиморфная гетерогенная популяция с широким спектром функциональной активности.

According to ultrastructural, immunohistochemical, and morphometric analysis the population of stellate cells of liver has been investigated in the process of development of fibrosis and cirrhosis of infectious-viral genesis. Fibrogenic activation of stellate cells of liver is characterized by reduction of lipidic drops and synchronous expression of fibroblast-like characteristics positive immunohistochemical reaction to smooth muscle alpha-actin, hyperplasia of granular cytoplasmic reticulum and pericellular forming of numerous collagenous fibrils. In spite of progressing decrease in number density of lipid carrying stellate cells during fibrosis development the necessity of maintenance of retinoids deposit function remains lipid carrying stellate cells have been found in fibrous septum and inside liver lobes under liver cirrhosis. As a whole, liver stellate cells are the polymorphic heterogenic population with wide spectrum of functional activity.

Keywords

ФИБРОГЕНЕЗ, ЗВЕЗДЧАТЫЕ КЛЕТКИ ПЕЧЕНИ, УЛЬТРАСТРУКТУРА, ИММУНОГИСТОХИМИЯ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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