Title:The Role of Adipokines in the Establishment and Progression of Head and Neck Neoplasms
Volume: 26
Issue: 25
Author(s): Theodora Tzanavari, Jason Tasoulas, Chrysoula Vakaki , Chrysovalantou Mihailidou , Gerasimos Tsourouflis and Stamatios Theocharis *
Affiliation:
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, Athens, 11527,Greece
Keywords:
Adipokines, leptin, adiponectin, head and neck cancer, oral squamous cell carcinoma, salivary gland
tumors, thyroid cancer, esophageal cancer.
Abstract: Adipokines constitute a family of protein factors secreted by white adipose tissue
(WAT), that regulate the functions of WAT and other sites. Leptin, adiponectin and resistin,
are the main adipokines present in serum and saliva, targeting several tissues and organs, including
vessels, muscles, liver and pancreas. Besides body mass regulation, adipokines affect
glucose homeostasis, inflammation, angiogenesis, cell proliferation and apoptosis, and other
crucial cell procedures. Their involvement in tumor formation and growth is well established
and deregulation of adipokine and adipokine receptors’ expression is observed in several malignancies
including those located in the head and neck region. Intracellular effects of adipokines
are mediated by a plethora of receptors that activate several signaling cascades including
Janus kinase/ Signal transducer and activator of transcription (JAK/ STAT pathway),
Phospatidylinositol kinase (PI3/ Akt/ mTOR) and Peroxisome proliferator-activated receptor
(PPAR). The present review summarizes the current knowledge on the role of adipokines
family members in carcinogenesis of the head and neck region. The diagnostic and prognostic
significance of adipokines and their potential role as serum and saliva biomarkers are also discussed.