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  1. Sawant S, Gokulan R, Dongre H, Vaidya M, Chaukar D, Prabhash K, et al.
    Clin Oral Investig, 2016 Jan;20(1):43-56.
    PMID: 25914047 DOI: 10.1007/s00784-015-1476-6
    In the present study, we have investigated the prognostic value of known stem cell-associated molecules such as Oct4, CD44 and c-Myc in patients with oral SCC who had received post-surgery radio- and/or chemotherapy.
  2. Yap LF, Lai SL, Patmanathan SN, Gokulan R, Robinson CM, White JB, et al.
    Sci Rep, 2016 Dec 09;6:38758.
    PMID: 27934959 DOI: 10.1038/srep38758
    Head and neck squamous cell carcinoma (HNSCC) is generalized term that encompasses a diverse group of cancers that includes tumours of the oral cavity (OSCC), oropharynx (OPSCC) and nasopharynx (NPC). Genetic alterations that are common to all HNSCC types are likely to be important for squamous carcinogenesis. In this study, we have investigated the role of the homeodomain-only homeobox gene, HOPX, in the pathogenesis of HNSCC. We show that HOPX mRNA levels are reduced in OSCC and NPC cell lines and tissues and there is a general reduction of HOPX protein expression in these tumours and OPSCCs. HOPX promoter methylation was observed in a subset of HNSCCs and was associated with a worse overall survival in HPV negative tumours. RNAseq analysis of OSCC cells transfected with HOPX revealed a widespread deregulation of the transcription of genes related to epithelial homeostasis and ectopic over-expression of HOPX in OSCC and NPC cells inhibited cell proliferation, plating efficiency and migration, and enhanced sensitivity to UVA-induced apoptosis. Our results demonstrate that HOPX functions as a tumour suppressor in HNSCC and suggest a central role for HOPX in suppressing epithelial carcinogenesis.
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