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內毒素對體外細胞生長和功能的效應

更新時間:2017-07-28  |  點擊率:1672

  1984年開始,Case Gould就發表了一篇關于內毒素對細胞培養效應的綜述1。本文締一生物/締一生物為您分析內毒素對體外細胞生長和功能的效應

  在這些效應中,包括刺激白細胞產生組織因子,激活小鼠巨噬細胞,抑制小鼠紅細胞集落形成(極低濃度即有該效應,小于1ng/ml)。那之后,許多文章發表,報道內毒素的各種效應,部分見下面的表格。

 

 

  針對內毒素的刺激,免疫細胞的表現更為明顯。巨噬細胞和單核細胞已知會產生和釋放各種細胞因子,包括腫瘤壞死因子和白細胞介素等。Morris等人發現,馬腹腔巨噬細胞暴露在低至0.5ng/ml內毒素中6個小時,也可引發顯著的白細胞介素6產生2。Mattern顯示,100ng內毒素刺激人T細胞增生,產生淋巴因子3

 

 

  因此,選用盡可能低的內毒素的胎牛血清,顯然是優上之選。

  參考文獻

  1. Case Gould, et al. Endotoxin in Vertebrate Cell Culture: Its Measurement and Significance. In Uses and Standardization of Vertebrate Cell Lines,(Tissue Culture Association, Gaithersburg, MD,1984),125-136.

  2. Morris, D.D.,et al. Endotoxin-induced production of interleukin6 by equine peritoneal macrophages In Vitro. Am.J.Vet.Res.1992,53:1298-1301

  3. Mattern, T., et al. Endotoxin and lipid A stimulate proliferation of human T cells in the presence of autologous monocytes. J.Immunol.1994,153:2996-3004

  4. Ronald E.Unger, et al. Human endothelial cell-based assay for endotoxin as sensitive as the conventional Limulus Amebocyte Lysate assay. Biomaterials. 2014,35(10):3180-3187

  5. Rinehart J and Keville L. Effects of endotoxin on proliferation of human hematopoietic cell precursors. Cytotechnology (1997) 42:153-159.

  6. Sivasubramaniyan K., et al. Endotoxin-induced silencing of mesoderm induction and functional differentiation: Role of HMGB1 in pluripotency and infection.Regenerative Medicine, 2008,3(1):23-31

  7. Gorbet, M.B.; Sefton, M.V. Endotoxin: The uninvited guest. Biomaterials 2005, 26, 6811–6817,

  綜上所述,您是不是已經對內毒素對體外細胞生長和功能的效應,有所了解。如果還有其他疑問,請咨詢締一生物/締一生物資深專家:。