Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Examples of CXCR4 immunohistochemical staining of human colorectal tumors. a displays an example of weak cytoplasmic staining in combination with strong staining of the nucleoplasm. b displays an example of intermediate cytoplasmic staining in combination with weak nuclear staining for CXCR4. c displays an example of strong cytoplasmic intensity of CXCR4 while of the nucleus only the envelope is stained and the nucleoplasm is not stained; original magnification ×400
