Cre/lox recombination in the lower urinary tract

Yinqiu Wang, Piyush Tripathi, Qiusha Guo, Matthew Coussens, Liang Ma, Feng Chen

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


Tbx18 is a T-Box transcription factor that has specific expression and indispensible function in the lower urinary tract. Here, we report the generation and characterization of a bacterial artificial chromosome (BAC) transgene expressing Cre under the control of Tbx18 regulatory elements. When crossed to the ROSA26R-lacZ reporter mice, the Tbx18-Cre transgene mediates loxP recombination in the mesenchymal derivatives in the lower urinary tract, especially in the smooth muscle cells (SMCs) and the stromal cells. There is no expression of this transgene in the urothelium or in the kidney. This Tbx18-Cre transgene recapitulates the endogenous Tbx18 expression in the urinary system and can be used for the study of the development, physiology, and diseases in the urinary tract. Its additional expression in the epicardium, limb, vibrissae, and other structures would be useful for studies in the relevant fields.

Original languageEnglish
Pages (from-to)409-413
Number of pages5
Issue number6
StatePublished - 2009


  • Cre-loxP
  • Development
  • Epicardium
  • Kidney
  • Lower urinary tract


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