• Title/Summary/Keyword: phosphatase of regenerating liver-3

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Observation of Histochemical Ultrastructure in Regenerating Rat Liver (재생중인 흰쥐 간세포의 조직화학적 미세구조 관찰)

  • Choi, Chee-Yong;Sohn, Seong-Hyang;Yoo, Chang-Kyu;Choe, Rim-Soon
    • Applied Microscopy
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    • v.18 no.2
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    • pp.205-217
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    • 1988
  • An ultrastructural study of hepatocyte proliferation in the regenerating rat liver has been made by means of the partial hepatectomy. And electron microscopic histochemistry of hepatocyte in the regenerating rat liver is studied through alkaline phosphatase reaction. The results are as follows: 1. When the regeneration of rat liver is induced by the partial hepatectomy, the prominent ultrastructural characteristics of hepatocyte are changes of the distribution of chromatin in nucleus, increase of the number of mitochondria and decrease of the size of them, development of rough endoplasmic reticulum, and transient decrease of glycogen granules in cytoplasm. 2. Alkaline phosphatase reaction products are appeared in the nucleus or rough endoplasmic reticulum of hepatocyte during the initial regeneration of liver as 24, 48 and 72 hour groups after partial hepatectomy. And these positive reaction are mainly increased in cytoplasm and plasma membrane of hepatocytes during 1, 2 and 3 week groups after partial hepatectomy. As 4 weeks passed after partial hepatectomy, these positive reaction is located in the sinusoidal epithelial cells or erythrocytes. With above results, we concluded that alkaline phosphatase was synthesized in the rough endoplasmic reticulum bounded ribosomes of regenerating hepatocyte, was transported to the plasma membrane of them, and then was transported in blood by the way sinusoidel epithelial cells.

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Inhibitory Activity of Edible Plant Extracts on Proliferation of Human Umbilical Vein Endothelial Cells (HUVECs)

  • Song, Myoung-Chong;Kim, Sung-Hoon;Kwak, Ho-Young;Yang, Hye-Joung;Bang, Myun-Ho;Chung, In-Sik;Lee, Youn-Hyung;Baek, Nam-In
    • Journal of Applied Biological Chemistry
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    • v.50 no.4
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    • pp.249-253
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    • 2007
  • Thirteen edible plants previously reported to show inhibitory activities on farnesyl protein transferase (FPTase) and phosphatase of the regenerating liver-3 (PRL-3) were evaluated for inhibitory activity on the proliferation of human umbilical vein endothelial cells (HUVECs). Four plant extracts, Oenothera erythrosepala, Perilla frutescens, Panicum miliaceum, and Quercus acutissima, significantly inhibited the proliferation of HUVECs induced by the basic fibroblast growth factor (bFGF) without cytotoxicity at 100 ${\mu}g/mL$. Myristica fragrans, Rosmarinus officinalis, and Syringa patula also showed inhibitory activity on the proliferation with only mild cytotoxicity.

Development of Biologically Active Compounds from Edible Plant Sources-XXIV. - Anti-cancer Activity of Alcohol Extracts from Edible Plants - (식용 식물자원으로부터 활성물질의 탐색-XXIV. - 식용 식물 추출물의 항암 활성 -)

  • Kwak, Ho-Young;Kwon, Byoung-Mog;Song, Myoung-Chong;Lee, Jin-Hee;Yang, Hye-Joung;Kim, Dae-Keun;Ahn, Eun-Mi;Baek, Nam-In
    • Korean Journal of Pharmacognosy
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    • v.38 no.4
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    • pp.312-320
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    • 2007
  • The screening of anti-cancer activity for the MeOH extracts of 163 natural sources, which were registered as edible plants by Korea Food & Drug Administration, exhibited 9 extracts to have significant inhibitory effects on farnesyl-protein transferase (FPTase) and phosphatase of regenerating liver-3 (PRL-3). In order to confirm the inhibitory activity of these active extracts, the activity assay was repeated for some fractions obtained from the active extracts using Medium Pressure Liquid Chromatography (MPLC). Some fractions of Carya illinoensis, Chlorella vulgaris, Panicum miliaceum, Perilla frutescens, Rosmarinus officinalis showed over 50% inhibitory activity on FPTase as well as those of Capsella bursa-pastoris, C. illinoensis, C. vulgaris, Coix lacrymajobi, Myristica fragrans, P. miliaceum, R. officinalis did over 50% inhibitory activity on PRL-3.

Combined Expression of Metastasis Related Markers Naa10p, SNCG and PRL-3 and its Prognostic Value in Breast Cancer Patients

  • Min, Li;Ma, Ruo-Lan;Yuan, Hua;Liu, Cai-Yun;Dong, Bing;Zhang, Cheng;Zeng, Yan;Wang, Li;Guo, Jian-Ping;Qu, Li-Ke;Shou, Cheng-Chao
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.7
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    • pp.2819-2826
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    • 2015
  • Combinations of multiple biomarkers representing distinct aspects of metastasis may have better prognostic value for breast cancer patients, especially those in late stages. In this study, we evaluated the protein levels of N-${\alpha}$-acetyltransferase 10 protein (Naa10p), synuclein-${\gamma}$ (SNCG), and phosphatase of regenerating liver-3 (PRL-3) in 365 patients with breast cancer by immunohistochemistry. Distinct prognostic subgroups of breast cancer were identified by combination of the three biomarkers. The Naa10p+SNCG-PRL-3-subgroup showed best prognosis with a median distant metastasis-free survival (DMFS) of 140 months, while the Naa10p-SNCG+PRL-3+subgroup had the worst prognosis with a median DMFS of 60.5 months. Multivariate analysis indicated Naa10p, SNCG, PRL-3, and the TNM classification were all independent prognostic factors for both DMFS and overall survival (OS). The three biomarker combination of Naa10p, SNCG and PRL-3 performed better in patients with lymph node metastasis, especially those with more advanced tumors than other subgroups. In conclusion, the combined expression profile of Naa10p, SNCG and PRL-3, alone or in combination with the TNM classification system, may provide a precise estimate of prognosis of breast cancer patients.