![](https://webarchive.library.unt.edu/eot2008/20090511020759im_/http://www.cancer.gov/images/spacer.gif) |
|
![](https://webarchive.library.unt.edu/eot2008/20090511020759im_/http://www.cancer.gov/images/spacer.gif)
![](https://webarchive.library.unt.edu/eot2008/20090511020759im_/http://www.cancer.gov/images/spacer.gif)
| Sustancia que impide la unión de la proteína endotelina-1 con su receptor. La endotelina-1 es una molécula pequeña que produce cambios en los vasos sanguíneos y ayuda a regular la presión arterial. También puede estimular el crecimiento de algunos tipos de células. |
![](https://webarchive.library.unt.edu/eot2008/20090511020759im_/http://www.cancer.gov/images/spacer.gif)
![](https://webarchive.library.unt.edu/eot2008/20090511020759im_/http://www.cancer.gov/images/gray_spacer.gif)
![](https://webarchive.library.unt.edu/eot2008/20090511020759im_/http://www.cancer.gov/images/spacer.gif)
|
![](https://webarchive.library.unt.edu/eot2008/20090511020759im_/http://www.cancer.gov/images/spacer.gif) |