MAPKAPK2 plays a crucial role in the progression of head and neck squamous cell carcinoma by regulating transcript stability

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2019
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Abstract
Abstract Background Head and neck squamous-cell carcinoma (HNSCC) ranks sixth among cancers worldwide. Though several molecular mechanisms of tumor initiation and progression of HNSCC are known, others remain unclear. Significance of p38/MAPKAPK2 (Mitogen-activated protein kinase-activated protein kinase-2) pathway in cell stress and inflammation is well established and its role in tumor development is being widely studied. Methods We have elucidated the role of MAPKAPK2 (MK2) in HNSCC pathogenesis using clinical tissue samples, MK2-knockdown (MK2KD) cells and heterotropic xenograft mice model. Results In patient-derived tissue samples, we observed that MK2 is reproducibly overexpressed. Increased stability of cyclin-dependent kinase inhibitor 1B (p27), mitogen-activated protein kinase phosphatase-1 (MKP-1) transcripts and decreased half-life of tumor necrosis factor-alpha (TNF-Ī±) and vascular endothelial growth factor (VEGF) transcripts in MK2KD cells suggests that MK2 regulates their transcript stability. In vivo xenograft experiments established that knockdown of MK2 attenuates course of tumor progression in immunocompromised mice. Conclusion Altogether, MK2 is responsible for regulating the transcript stability and is functionally important to modulate HNSCC pathogenesis.
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Authors Soni, Sourabh;Saroch, Munish Kumar;Chander, Bal;Tirpude, Narendra Vijay;Padwad, Yogendra S.;
Journal journal of experimental & clinical cancer research
Year 2019
DOI DOI not found
URL
http://link.springer.com/article/10.1186/s13046-019-1167-2
Keywords
chemistry Microbiology Medicine Chemical technology Biotechnology Technology Computer applications to medicine. Medical informatics Science (General) Science physics neoplasms. tumors. oncology. including cancer and carcinogens

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