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Ductular proliferation in liver tissues with severe chronic hepatitis B: an immunohistochemical study.

机译:严重慢性乙型肝炎在肝组织中的导管增生:一项免疫组织化学研究。

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AIM: To clarify the pathogenesis of ductular proliferation and its possible association with oval cell activation and hepatocyte regeneration. METHODS: Immunohistochemical staining and image analysis of the ductular structures in the liver tissues from 11 patients with severe chronic hepatitis B and 2 healthy individuals were performed. The liver specimens were sectioned serially, and then cytokeratin 8(CK8),CK19,OV6,proliferating cell nuclear antigens(PCNA), glutathione-S-transferase (GST), alpha-fetal protein (AFP) and albumin were stained immunohistochemically. RESULTS: Typical and atypical types of ductular proliferation were observed in the portal tracts of the liver tissues in all 11 patients. The proliferating ductular cells were positive for CK8, CK19, OV6 and PCNA staining. Some atypical ductular cells displayed the morphological and immunohistochemical characteristics of hepatic oval cells.Some small hepatocyte-like cells were between hepatic oval cells and mature hepatocytes morphometricallyand immunohistochemically. CONCLUSION: The proliferating ductules in the liver of patients with severe chronic liver disease may have different origins.Some atypical ductular cells are actually activated hepatic oval cells. Atypical ductular proliferation is related to hepatocyte regeneration and small hepatocyte-like cells may be intermediate transient cells between hepatic oval cells and mature hepatocytes.
机译:目的:阐明导管增生的发病机制及其与卵圆细胞活化和肝细胞再生的可能关系。方法:对11例重度慢性乙型肝炎患者和2例健康人的肝组织进行了免疫组织化学染色和图像分析。对肝脏标本进行连续切片,然后对细胞角蛋白8(CK8),CK19,OV6,增殖细胞核抗原(PCNA),谷胱甘肽-S-转移酶(GST),α-胎儿蛋白(AFP)和白蛋白进行免疫组织化学染色。结果:在所有11例患者的肝组织门道中均观察到典型和非典型的导管增生。增殖性导管细胞CK8,CK19,OV6和PCNA染色均为阳性。一些非典型的导管细胞表现出肝卵圆形细胞的形态学和免疫组化特征。一些小的肝细胞样细胞在形态学上和免疫组织化学上位于肝卵圆形细胞和成熟肝细胞之间。结论:重度慢性肝病患者肝小管增生的起源可能不同。一些非典型的导管细胞实际上是活化的肝卵圆细胞。非典型性导管增生与肝细胞再生有关,小肝细胞样细胞可能是肝卵圆形细胞与成熟肝细胞之间的中间瞬时细胞。

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