[Protein microarray analysis on changes in protein phosphorylation in recurrent nasopharyngeal carcinoma].

Objective: To compare the differential phosphorylation level of proteins between relapsed nasopharyngeal carcinoma (rNPC) and primary nasopharyngeal carcinoma (pNPC).

Methods: Total protein was extracted from 4 pNPC tissue and 4 rNPC tissue samples from January 2003 to September 2005. Then it was analyzed by antibody microarray with 656 antibodies.