MIEN1 promotes oral cancer progression and implicates poor overall survival

Smrithi Rajendiran, Marilyne Kpetemey, Sayantan Maji, Lee D. Gibbs, Subhamoy Dasgupta, Rebecca Mantsch, Richard J. Hare, Jamboor K. Vishwanatha

Research output: Contribution to journalArticleResearchpeer-review

11 Citations (Scopus)

Abstract

Oral squamous cell carcinoma is a highly malignant tumor with the potential to invade local and distant sites and promote lymph node metastasis. Major players underlying the molecular mechanisms behind tumor progression are yet to be fully explored. Migration and invasion enhancer 1 (MIEN1), a novel protein overexpressed in various cancers, facilitates cell migration and invasion. In the present study we investigated the expression and role of MIEN1 in oral cancer progression using an in vitro model, patient derived oral tissues and existing TCGA data. Expression analysis using immortalized normal and cancer cells demonstrated increased expression of MIEN1 in cancer. Assays performed after MIEN1 knockdown in OSC-2 cells showed decreased migration, invasion and filopodia formation; while MIEN1 overexpression in DOK cells increased these characteristics and also up-regulated some Akt/NF-κB effectors, thereby suggesting an important role for MIEN1 in oral cancer progression. Immunohistochemical staining and analyses of oral tissue specimens, collected from patients over multiple visits, revealed significantly more staining in severe dysplasia and squamous cell carcinoma compared to mildly dysplastic or hyperplastic tissues. Finally, this was corroborated with the TCGA dataset, where MIEN1 expression was not only higher in intermediate and high grade cancer with significantly lower survival but also correlated with smoking. In summary, we demonstrate that MIEN1 expression not only positively correlates with oral cancer progression but also seems to be a critical molecular determinant in migration and invasion of oral cancer cells, thereby, playing a possible role in their metastatic dissemination.

Original languageEnglish
Pages (from-to)876-885
Number of pages10
JournalCancer Biology and Therapy
Volume16
Issue number6
DOIs
StatePublished - 1 Jan 2015

Fingerprint

Mouth Neoplasms
Survival
Neoplasms
Squamous Cell Carcinoma
Staining and Labeling
Pseudopodia
Cell Movement
Lymph Nodes
Smoking
Neoplasm Metastasis
Proteins

Keywords

  • Filopodia
  • Invasion
  • Longitudinal study
  • MIEN1
  • Migration
  • NF-κB
  • Oral cancer
  • Survival
  • TCGA HNSCC database

Cite this

Rajendiran, Smrithi ; Kpetemey, Marilyne ; Maji, Sayantan ; Gibbs, Lee D. ; Dasgupta, Subhamoy ; Mantsch, Rebecca ; Hare, Richard J. ; Vishwanatha, Jamboor K. / MIEN1 promotes oral cancer progression and implicates poor overall survival. In: Cancer Biology and Therapy. 2015 ; Vol. 16, No. 6. pp. 876-885.
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Rajendiran, S, Kpetemey, M, Maji, S, Gibbs, LD, Dasgupta, S, Mantsch, R, Hare, RJ & Vishwanatha, JK 2015, 'MIEN1 promotes oral cancer progression and implicates poor overall survival', Cancer Biology and Therapy, vol. 16, no. 6, pp. 876-885. https://doi.org/10.1080/15384047.2015.1040962

MIEN1 promotes oral cancer progression and implicates poor overall survival. / Rajendiran, Smrithi; Kpetemey, Marilyne; Maji, Sayantan; Gibbs, Lee D.; Dasgupta, Subhamoy; Mantsch, Rebecca; Hare, Richard J.; Vishwanatha, Jamboor K.

In: Cancer Biology and Therapy, Vol. 16, No. 6, 01.01.2015, p. 876-885.

Research output: Contribution to journalArticleResearchpeer-review

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Rajendiran S, Kpetemey M, Maji S, Gibbs LD, Dasgupta S, Mantsch R et al. MIEN1 promotes oral cancer progression and implicates poor overall survival. Cancer Biology and Therapy. 2015 Jan 1;16(6):876-885. https://doi.org/10.1080/15384047.2015.1040962