Table 1.

Primary Antibodies Used in This Study

Antigen	Source	From
ET-1	Rabbit polyclonal	Peninsula Laboratories, Belmont, CA
ETR-B	Rabbit polyclonal	Alomone Labs, Jerusalem, Israel
pGFAP	Rabbit polyclonal	DAKO Labs, Carpinteria, CA
mGFAP	Mouse monoclonal	Bio Genex, San Ramon, CA
mGFAP-Cy-3 conjugate	Mouse monoclonal	Sigma-Aldrich, St. Louis, MO
Glutamine synthase	Rabbit polyclonal	Dr. A. Marmorstein, University of Arizona College of Medicine, Tucson, AZ
Cellular retinaldehyde binding protein (CRALBP)	Mouse monoclonal	Dr. J.C. Saari, University of Washington, Seattle, WA
Smooth muscle actin	Mouse monoclonal	Sigma-Aldrich
mSMA-Cy3 conjugate	Mouse monoclonal	Sigma-Aldrich
Opsin	Sheep polyclonal	Dr. D.S. Papermaster, University of Connecticut Health Center, Farmington, CT