Tumor Biology

, Volume 36, Issue 2, pp 1273–1278 | Cite as

The SIPA1 -313A>G polymorphism is associated with prognosis in inoperable non-small cell lung cancer

  • Agnieszka Gdowicz-Kłosok
  • Monika Giglok
  • Anna Drosik
  • Rafał Suwiński
  • Dorota Butkiewicz
Research Article


Polymorphism in signal-induced proliferation-associated 1 (SIPA1) gene may contribute to the development of metastasis in human cancers. In this preliminary study, we examined the association of the SIPA1 -313A>G (rs931127) polymorphism with overall survival (OS) and progression-free survival (PFS) in 351 inoperable patients with non-small cell lung cancer (NSCLC) treated with radiotherapy or radiochemotherapy (curative or palliative). The GG homozygotes had significantly shorter PFS under codominant and recessive models in all patients (hazard ratio (HR) 1.47, p = 0.035, and HR 1.47, p = 0.022, respectively) and in advanced stage subgroup (HR 1.49, p = 0.037, and HR 1.48, p = 0.023, respectively). The GG genotype was also associated with reduced OS and PFS (codominant model: HR 2.41, p = 0.020, and HR 2.34, p = 0.020, respectively; recessive model: HR 2.16, p = 0.026, and HR 2.18, p = 0.022, respectively) in radiotherapy alone subgroup. Moreover, the SIPA1 -313GG was identified as an independent adverse prognostic factor for PFS in the cohort. Our results indicate, for the first time, that the SIPA1 -313A>G may have a prognostic role in unresected NSCLC making it a potential predictor of poor survival due to earlier progression.


SIPA1 Polymorphism Survival Lung cancer Prognosis 



The authors thank Mrs. Z. Kołosza for providing the part of the epidemiological data as well as Mrs. I. Matuszczyk and Mrs. I. Domińczyk for their technical assistance. This work was supported by grant no. 2012/05/B/NZ5/01905 from Polish National Science Centre (NCN) and grant no. NN 403 290636 from Polish Ministry of Science and Higher Education (MNiSW).

Conflicts of interest



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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2014

Authors and Affiliations

  • Agnieszka Gdowicz-Kłosok
    • 1
  • Monika Giglok
    • 2
  • Anna Drosik
    • 2
    • 3
  • Rafał Suwiński
    • 2
  • Dorota Butkiewicz
    • 1
  1. 1.Center for Translational Research and Molecular Biology of CancerM. Skłodowska-Curie Memorial Cancer Center and Institute of OncologyGliwicePoland
  2. 2.II Clinic of Radiotherapy and ChemotherapyM. Skłodowska-Curie Memorial Cancer Center and Institute of OncologyGliwicePoland
  3. 3.Department of Clinical OncologyM. Skłodowska-Curie Memorial Cancer Center and Institute of OncologyGliwicePoland

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