• 貴陽醫(yī)學(xué)院附屬醫(yī)院肝膽外科(貴州貴陽 550004);

目的  探討以2-乙酰氨基芴(2-AFF)灌胃與2/3肝切除法聯(lián)合運(yùn)用建立大鼠肝卵圓細(xì)胞增殖模型的適宜劑量,并探討肝卵圓細(xì)胞的體外分離培養(yǎng)方法。
方法  將174只Wistar大鼠隨機(jī)分為4個(gè)實(shí)驗(yàn)組(各30只)、未處理組(24只)和生理鹽水組(30只)。4個(gè)實(shí)驗(yàn)組大鼠分別給予5、10、15及20mg/(kg ? d) 2-AAF灌胃(分別對應(yīng)第1、2、3及4實(shí)驗(yàn)組),于第5天行2/3肝切除,術(shù)后繼續(xù)灌胃至處死大鼠;生理鹽水組大鼠以生理鹽水灌胃,其余操作同實(shí)驗(yàn)組;未處理組大鼠不做任何處理。6組分別于肝切除術(shù)后第4、8、12及16天各隨機(jī)處死6只大鼠,取肝組織行HE染色和免疫組化染色,觀察肝卵圓細(xì)胞的增殖情況〔第4天時(shí)同時(shí)檢測血清丙氨酸氨基轉(zhuǎn)移酶(ALT)和天冬氨酸氨基轉(zhuǎn)移酶(AST)水平〕;并采用二步膠原酶灌注結(jié)合Percoll密度梯度離心法對大鼠肝卵圓細(xì)胞進(jìn)行分離和培養(yǎng)。
結(jié)果  肝切除術(shù)后第4天,未處理組、生理鹽水組、第1、2、3及4實(shí)驗(yàn)組大鼠的存活率分別為100% (24/24)、93% (28/30)、93% (28/30)、90% (27/30)、90% (27/30)及80% (24/30)。肝切除后第4天,與未處理組及生理鹽水組比較,第2、3和4實(shí)驗(yàn)組大鼠的血清ALT及AST水平均升高(P<0.05)。HE染色結(jié)果顯示,第2、3及4實(shí)驗(yàn)組大鼠的肝組織均出現(xiàn)不同程度的肝損傷,其中第3和第4實(shí)驗(yàn)組均可見明顯的肝卵圓細(xì)胞增殖反應(yīng);免疫組化染色結(jié)果顯示,第2、3及4實(shí)驗(yàn)組卵圓細(xì)胞標(biāo)志6 (OV-6)表達(dá)陽性細(xì)胞數(shù)在術(shù)后第4、8、及12天,隨2-AAF劑量的增加逐漸升高,與2-AAF間呈劑量-效應(yīng)關(guān)系(P<0.05)。大鼠肝卵圓細(xì)胞進(jìn)行體外分離和培養(yǎng)后,經(jīng)OV-6免疫組化染色鑒定,有80%的細(xì)胞表達(dá)呈陽性。
結(jié)論  聯(lián)合運(yùn)用15 mg/(kg ? d) 2-AFF灌胃加2/3肝切除,于術(shù)后第12天,有效誘導(dǎo)了肝卵圓細(xì)胞的增殖,且造模大鼠的耐受性較好、死亡率低。采用二步膠原酶灌注結(jié)合Percoll密度梯度離心法較成功地分離出了大鼠肝卵圓細(xì)胞。

引用本文: 黃欽賢,李海洋,胡毅,宋建寧,董標(biāo),曹坤. 大鼠肝卵圓細(xì)胞增殖模型的建立和體外分離的實(shí)驗(yàn)研究△. 中國普外基礎(chǔ)與臨床雜志, 2013, 20(10): 1100-1105. doi: 復(fù)制

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2. 宋凱, 楊碩菲, 吳俊華, 等. 肝癌干細(xì)胞的研究進(jìn)展[J]. 世界華人消化雜志, 2009, 17(36):3704-3710.
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5. 王宇明, 陳耀凱, 郎松, 等. 大鼠肝卵圓細(xì)胞的分離培養(yǎng)及脾內(nèi)移植研究[J]. 中華肝臟病雜志, 2003, 11(6):328-330.
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7. Farber E. Similarities in the sequence of early histological changes induced in the liver of the rat by ethionine, 2-acetylamino-fluorene, and 3’-methyl-4-dimethylaminoazobenzene[J]. CancerRes, 1956, 16(2):142-148.
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9. 邢秀偉, 李建生. 干細(xì)胞移植治療肝臟疾病的研究進(jìn)展[J]. 中國組織工程研究, 2012, 16(6):1115-1118.
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13. 羅茜, 王軍, 陳東風(fēng). 肝臟微環(huán)境對干細(xì)胞的分化調(diào)控作用[J]. 肝臟, 2012, 17(5):347-349.
14. 陳琳, 陳孝平, 張偉, 等. 肝星狀細(xì)胞誘導(dǎo)卵圓細(xì)胞向成熟肝細(xì)胞分化的體外研究[J]. 中華肝臟病雜志, 2009, 17(10):765-770.
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19. 崔瀟. 肝癌干細(xì)胞研究進(jìn)展[J]. 現(xiàn)代醫(yī)藥衛(wèi)生, 2013, 29(4):544-546.
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  1. 1. Jemal A, Siegel R, Xu J, et al. Cancer statistics, 2010[J]. CA Cancer J Clin, 2010, 60(5):277-300.
  2. 2. 宋凱, 楊碩菲, 吳俊華, 等. 肝癌干細(xì)胞的研究進(jìn)展[J]. 世界華人消化雜志, 2009, 17(36):3704-3710.
  3. 3. Sun CY, Zuo S. Stem cell research in hepatocellular carcinoma[J]. Front Med China, 2008, 2(1):1-4.
  4. 4. 王楠, 鄒偉, 劉鵬, 等. 肝臟干細(xì)胞研究及應(yīng)用前景展望[J]. 中國組織工程研究, 2012, 16(6):1119-1124.
  5. 5. 王宇明, 陳耀凱, 郎松, 等. 大鼠肝卵圓細(xì)胞的分離培養(yǎng)及脾內(nèi)移植研究[J]. 中華肝臟病雜志, 2003, 11(6):328-330.
  6. 6. Opie EL. The pathogenesis of tumors of the liver produced by butter yellow[J]. J Exp Med, 1944, 80(3):231-246.
  7. 7. Farber E. Similarities in the sequence of early histological changes induced in the liver of the rat by ethionine, 2-acetylamino-fluorene, and 3’-methyl-4-dimethylaminoazobenzene[J]. CancerRes, 1956, 16(2):142-148.
  8. 8. Crosby HA, Hubscher S, Fabris L, et al. Immunolocalization of putative human liver progenitor cells in livers from patients with end-stage primary biliary cirrhosis and sclerosing cholangitis using the monoclonal antibody OV-6[J]. Am J Pathol, 1998, 152(3):771-779.
  9. 9. 邢秀偉, 李建生. 干細(xì)胞移植治療肝臟疾病的研究進(jìn)展[J]. 中國組織工程研究, 2012, 16(6):1115-1118.
  10. 10. Pi L, Ding X, Jorgensen M, et al. Connective tissue growth factorwith a novel fibronectin binding site promotes cell adhesion and migration during rat oval cell activation[J]. Hepatology, 2008, 47(3):996-1004.
  11. 11. Pham Van T, Couchie D, Martin-Garcia N, et al. Expression of matrix metalloproteinase-2 and -9 and of tissue inhibitor of matrix metalloproteinase-1 in liver regeneration from oval cells in rat[J]. Matrix Biol, 2008, 27(8):674-681.
  12. 12. Zhang W, Chen XP, Zhang WG, et al. Hepatic non-parenchymalcells and extracellular matrix participate in oval cell-mediated liverregeneration[J]. World J Gastroenterol, 2009, 15(5):552-560.
  13. 13. 羅茜, 王軍, 陳東風(fēng). 肝臟微環(huán)境對干細(xì)胞的分化調(diào)控作用[J]. 肝臟, 2012, 17(5):347-349.
  14. 14. 陳琳, 陳孝平, 張偉, 等. 肝星狀細(xì)胞誘導(dǎo)卵圓細(xì)胞向成熟肝細(xì)胞分化的體外研究[J]. 中華肝臟病雜志, 2009, 17(10):765-770.
  15. 15. Xiong Q, Feng J, Xang J, et al. Comparison among curativeeffects of three different transplantation approaches of mesenchymalstem cells on rat model of cirrhosis[J]. J Third Mil Med Univ, 2011, 33(8):804-808.
  16. 16. Petersen BE, Zajac VF, Michalopoulos GK. Hepatic oval cell activation in response to injury following chemically induced periportal or pericentral damage in rats[J]. Hepatology, 1998, 27(4):1030-1038.
  17. 17. Suzuki A, Zheng Y, Kondo R, et al. Flow-cytometric separationand enrichment of hepatic progenitor cells in the developing mouseliver[J]. Hepatology, 2000, 32(6):1230-1239.
  18. 18. Suskind DL, Muench MO. Searching for common stem cells of the hepatic and hematopoietic systems in the human fetal liver:CD34+ cytokeratin 7/8+ cells express markers for stellate cells[J]. J Hepatol, 2004, 40(2):261-268.
  19. 19. 崔瀟. 肝癌干細(xì)胞研究進(jìn)展[J]. 現(xiàn)代醫(yī)藥衛(wèi)生, 2013, 29(4):544-546.
  20. 20. Yasui O, Miura N, Terada K, et al. Isolation of oval cells from Long-Evans Cinnamon rats and their transformation into hepatocytes in vivo in the rat liver[J]. Hepatology, 1997, 25(2):329-334.