Chemokine-Cytokine Networks in the Head and Neck Tumor Microenvironment

Sabah Nisar,Parvaiz Yousuf,T. Masoodi,N. Wani,Sheema Hashem,Mayank Singh,Geetanjali Sageena,Deepika Mishra,Rakesh Kumar,Mohammad Haris,A. Bhat,M. Macha

Published 2021 in International Journal of Molecular Sciences

ABSTRACT

Head and neck squamous cell carcinomas (HNSCCs) are aggressive diseases with a dismal patient prognosis. Despite significant advances in treatment modalities, the five-year survival rate in patients with HNSCC has improved marginally and therefore warrants a comprehensive understanding of the HNSCC biology. Alterations in the cellular and non-cellular components of the HNSCC tumor micro-environment (TME) play a critical role in regulating many hallmarks of cancer development including evasion of apoptosis, activation of invasion, metastasis, angiogenesis, response to therapy, immune escape mechanisms, deregulation of energetics, and therefore the development of an overall aggressive HNSCC phenotype. Cytokines and chemokines are small secretory proteins produced by neoplastic or stromal cells, controlling complex and dynamic cell–cell interactions in the TME to regulate many cancer hallmarks. This review summarizes the current understanding of the complex cytokine/chemokine networks in the HNSCC TME, their role in activating diverse signaling pathways and promoting tumor progression, metastasis, and therapeutic resistance development.

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