論文

査読有り 国際誌
2014年8月

Comparative studies on the heterogeneity of plasma-derived and recombinant human albumins in laboratory use.

International journal of biological macromolecules
  • Takeshi Minami
  • ,
  • Tomoyoshi Terada
  • ,
  • Teppei Takahashi
  • ,
  • Hajime Arikawa
  • ,
  • Yukie Matsuyama
  • ,
  • Kazuha Kizaki
  • ,
  • Seiichi Era

69
開始ページ
79
終了ページ
87
記述言語
英語
掲載種別
DOI
10.1016/j.ijbiomac.2014.05.010

We investigated the thiol-redox state, and the relationship between structural characteristics, such as thermal stability, and functional properties, such as cell growth activity, of commercial plasma-derived (pHSA) and recombinant human serum albumin (rHSA) products. In this study, 5 pHSA products (A1653, A9511, A1887, A8763, and A3782) and 2 rHSA products (A9731 and A9986) were obtained from Sigma-Aldrich. Among them, three kinds of HSA products [A1653 (an initial fractionation product), A3782 (a final purified product), and A9731 (recombinant albumin expressed in rice)] were selected for experiments on the thermal stabilities, analyzed by thermal denaturation curves, and cell growth activities of U937 and THP-1 cell lines using the WST-1 reagent. The secondary and tertiary structures of HSA products were similar, whereas a marked difference was observed in their thermal stabilities. The degree of thermal stability of the three representative products was in the order of A9731 (rHSA)>A1653 (pHSA)>A3782 (pHSA), as was the degree of cell growth activity of these products. One possible explanation for the present results is that albumin-bound fatty acids may have influenced the thermal stabilities and cell growth activities of U937 and THP-1 cells.

リンク情報
DOI
https://doi.org/10.1016/j.ijbiomac.2014.05.010
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/24857876

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