Review Article

Clinical Significance and Biological Role of HuR in Head and Neck Carcinomas

Table 2

HuR expression, localisation, and associations with clinicopathological features and target molecules as well as patients’ overall survival in studies investigating tissue samples.

StudyNHuR localisationCorrelations with
NuclearCytoplasmicClinicopathological featuresOther moleculesPatients’ overall survival

OSCCs
Cha et al. [64]9591.6% (87/95)71.6% (68/95)GradeNuclear and cytoplasmic with IAP2Cytoplasmic HuR adverse prognosticator
Cha et al. [63]10393.2% (96/103)69.9% (72/103)Gender, grade, lymph node, and distant metastasisCytoplasmic HuR with COX-2Cytoplasmic HuR adverse prognosticator
Kim et al. [68]9691% (83/96)60% (54/96)Lymph node metastasisNot correlated

LSCCs
Cho et al. [44]39100% (39/39)66.6% (26/39)NoneCytoplasmic HuR with COX-2

Thyroid lesions
Giaginis et al. [98]98Presence in 80% (78/98), higher expression in 43% (42/98)
Benign48Predominantly nuclear, higher expression in 29% (14/48)(i) Ki-67 in follicular cells
(ii) COX-2 (stronger in benign)
Malignant50Predominantly cytoplasmic, higher expression in 56% (28/50)Lymphatic invasion (trend)
Baldan et al. [97]104
Normal samples12(i) ↑ nuclear in all tumours
(ii) ↑ cytoplasmic in nontumour tissues versus FAs or PTCs, FTCs and ATCs
Follicular adenomas25
Carcinomas (PTC, FTC, and ATC)67

Salivary gland tumours
Cho et al. [100]46
Pleomorphic adenoma2853.6% (15/28)35.7% (10/28)
Mucoepidermoid carcinoma1877.78% (14/18)72.22% (13/18)Cytoplasmic HuR with COX-2