CCAAT-Enhancer-Binding Protein-delta/metabolism; Immune Tolerance; Macrophages/metabolism; Nasopharyngeal Neoplasms/metabolism; Phagocytosis; C-Reactive Protein/genetics; C-Reactive Protein/immunology; C-Reactive Protein/metabolism; CCAAT-Enhancer-Binding Protein-delta/genetics; CCAAT-Enhancer-Binding Protein-delta/immunology; Carcinoma; Dinoprostone/genetics; Dinoprostone/immunology; Dinoprostone/metabolism; ELAV Proteins/genetics; ELAV Proteins/immunology; ELAV Proteins/metabolism; Humans; Interleukin-10/genetics; Interleukin-10/immunology; Interleukin-10/metabolism; Macrophages/immunology; Macrophages/pathology; Nasopharyngeal Carcinoma; Nasopharyngeal Neoplasms/immunology; Nasopharyngeal Neoplasms/pathology; RNA Stability/genetics; RNA Stability/immunology; RNA, Messenger/genetics; RNA, Messenger/immunology; RNA, Messenger/metabolism; Serum Amyloid P-Component/genetics; Serum Amyloid P-Component/immunology; Serum Amyloid P-Component/metabolism; U937 Cells