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 PMID:21240264  

The Ngal reporter mouse detects the response of the kidney to injury in real time.

Neal Paragas | Andong Qiu | Qingyin Zhang | Benjamin Samstein | Shi-Xian Deng | Kai M Schmidt-Ott | Melanie Viltard | Wenqiang Yu | Catherine S Forster | Gangli Gong | Yidong Liu | Ritwij Kulkarni | Kiyoshi Mori | Avtandil Kalandadze | Adam J Ratner | Prasad Devarajan | Donald W Landry | Vivette D'Agati | Chyuan-Sheng Lin | Jonathan Barasch
Nature medicine | 2011

Many proteins have been proposed to act as surrogate markers of organ damage, yet for many candidates the essential biomarker characteristics that link the protein to the injured organ have not yet been described. We generated an Ngal reporter mouse by inserting a double-fusion reporter gene encoding luciferase-2 and mCherry (Luc2-mC) into the Ngal (Lcn2) locus. The Ngal-Luc2-mC reporter accurately recapitulated the endogenous message and illuminated injuries in vivo in real time. In the kidney, Ngal-Luc2-mC imaging showed a sensitive, rapid, dose-dependent, reversible, and organ- and cell-specific relationship with tubular stress, which correlated with the level of urinary Ngal (uNgal). Unexpectedly, specific cells of the distal nephron were the source of uNgal. Cells isolated from Ngal-Luc2-mC mice also revealed both the onset and the resolution of the injury, and the actions of NF-κB inhibitors and antibiotics during infection. Thus, imaging of Ngal-Luc2-mC mice and cells identified injurious and reparative agents that affect kidney damage.

Pubmed ID: 21240264

Research resources used in this publication

None found

Antibodies used in this publication

None found

Associated grants

  • Agency: NIDDK NIH HHS, United States
    Id: DK-58872
  • Agency: NIDDK NIH HHS, United States
    Id: P01 DK055388
  • Agency: NIAID NIH HHS, United States
    Id: R01 AI092743
  • Agency: NIDDK NIH HHS, United States
    Id: R01 DK073462-05
  • Agency: NIDDK NIH HHS, United States
    Id: DK-55388
  • Agency: NIDDK NIH HHS, United States
    Id: R01 DK073462
  • Agency: NIDDK NIH HHS, United States
    Id: R01 DK073462-04
  • Agency: NIDDK NIH HHS, United States
    Id: R01 DK058872

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