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The newly established human liver cell line: a potential cell source for the bioartificial liver in the future

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Abstract

The clinical use of a bioartificial liver (BAL) device strongly depends on the development of human liver cell lines. The aim of this study was to establish and assess the potential use of the stable HepG2 cell line expressing human augmenter of liver regeneration (hALR). The cDNA encoding hALR protein was inserted into pcDNA3.1 to generate pcDNA3.1/hALR, following which pcDNA3.1/hALR was transfected to HepG2 to establish a cell line that stably expressed hALR (HepG2 hALR). A total of 800 million HepG2 hALR cells were loaded into laboratory-scale BAL bioreactors and cultured for 4 days, during which time the parameters of hepatocyte-specific function and general metabolism were determined. The cell line that stably expressed human ALR was successfully established. The expression of recombinant hALR was higher in the HepG2 hALR cell line than in the HepG2 cell line based on immunofluorescence and immunoblot assays. In samples removed from the BAL bioreactor on day 4, compared to HepG2 cells, HepG2 hALR cells produced significantly more alpha-fetoprotein (127.3 %; P < 0.05) and urea (128.8 %; P < 0.05) and eliminated more glucose (135.7 %; P < 0.05); the level of human albumin was also higher (117 %) in HepG2 hALR cells, but the difference was not significant (P > 0.05). After 24 h of culture, the mean lidocaine removal rate was 65.1 and 57.3 % in culture supernatants of HepG2 hALR and HepG2 cell lines, respectively (P < 0.01). Based on these results, we conclude that HepG2 hALR cells showed liver-specific functionality when cultured inside the bioreactor and would therefore be a potential cell source for BAL.

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Acknowledgments

We thank the 12th Five-Year National Science and Technology Major Project for Infectious Diseases (No. 2012ZX10002004-005) for support.

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Authors and Affiliations

  1. Center of Liver Failure Treatment and Research, 302 Military Hospital, No.100, Middle of West 4th Ring Rd., Beijing, 100039, China

    Hongling Liu, Shaoli You, Yihui Rong, Yichen Wu, Bing Zhu, Zhihong Wan, Wanshu Liu & Shaojie Xin

  2. Experimental Technologies and Research Center, 302 Military Hospital of China, Beijing, China

    Panyong Mao

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  1. Hongling Liu
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  2. Shaoli You
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  3. Yihui Rong
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  4. Yichen Wu
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  5. Bing Zhu
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  6. Zhihong Wan
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  7. Wanshu Liu
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  8. Panyong Mao
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  9. Shaojie Xin
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Correspondence to Panyong Mao or Shaojie Xin.

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Liu, H., You, S., Rong, Y. et al. The newly established human liver cell line: a potential cell source for the bioartificial liver in the future. Human Cell 26, 155–161 (2013). https://doi.org/10.1007/s13577-013-0068-5

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  • DOI: https://doi.org/10.1007/s13577-013-0068-5

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