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Virchows Archiv

, Volume 454, Issue 5, pp 549–555 | Cite as

Transcription factors Snail, Slug, Twist, and SIP1 in spindle cell carcinoma of the head and neck

  • Nika Kojc
  • Nina Zidar
  • Nina Gale
  • Mario Poljak
  • Kristina Fujs Komloš
  • Antonio Cardesa
  • Heinz Höfler
  • Karl-Friedrich Becker
Original Article

Abstract

Spindle cell carcinoma (SpCC) is a biphasic tumor composed of squamous cell carcinoma (SCC) and malignant spindle cells. There is mounting evidence that epithelial–mesenchymal transition (EMT) plays an important role in the pathogenesis of SpCC. Transcription repression has recently emerged as a fundamental mechanism triggering EMT in experimental models. Our aim is to analyze the expression of transcription repressors Snail, Slug, Twist, and SIP1 in SpCC of the head and neck in comparison to SCC, matched for location and stage. Thirty cases of SpCC and 30 cases of SCC of the head and neck were included. Snail, Slug, Twist, and SIP1 expression was analyzed on mRNA and protein levels, using real-time reverse transcription–polymerase chain reaction (RT-PCR) and immunohistochemistry. By RT-PCR, we found upregulation of mRNA for transcription factors Snail, Slug, Twist, and SIP1 in SpCC when compared to SCC. This upregulation was statistically significant for Slug, Twist, and SIP1 but nonsignificant for Snail. Immunohistochemistry was performed for Snail, Slug, and SIP1 and demonstrated a positive reaction for Slug and SIP1 in all cases and for Snail in two thirds of SpCC cases. Our finding of upregulation of all four tested transcription factors supports the hypothesis that EMT plays an important role in the pathogenesis of SpCC of the head and neck.

Keywords

Spindle cell carcinoma Pathogenesis Transcription repression Snail Slug SIP1 Twist 

Notes

Conflict of interest statement

We declare that we have no conflict of interest.

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Nika Kojc
    • 1
  • Nina Zidar
    • 1
  • Nina Gale
    • 1
  • Mario Poljak
    • 2
  • Kristina Fujs Komloš
    • 2
  • Antonio Cardesa
    • 3
  • Heinz Höfler
    • 4
    • 5
  • Karl-Friedrich Becker
    • 4
  1. 1.Institute of Pathology, Faculty of MedicineUniversity of LjubljanaLjubljanaSlovenia
  2. 2.Institute of Microbiology and Immunology, Faculty of MedicineUniversity of LjubljanaLjubljanaSlovenia
  3. 3.Department of Pathology, Hospital Clinic, IDIBAPSUniversity of BarcelonaBarcelonaSpain
  4. 4.Institute of PathologyTechnical University of MunichMunichGermany
  5. 5.Helmholtz Zentrum München—Deutsches Forschungszentrum für Gesundheit und Umwelt, GmbHInstitut für PathologieNeuherbergGermany

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