Molecular Biology Reports

, Volume 38, Issue 6, pp 4205–4210 | Cite as

Program death 1 (PD1) haplotyping in patients with breast carcinoma

  • Mohammad Reza Haghshenas
  • Sirous Naeimi
  • Abdolrasoul Talei
  • Abbas Ghaderi
  • Nasrollah Erfani
Article

Abstract

Located on chromosome 2q37.3, the programmed death 1 (PD1) gene encodes for PD-1 (also known as CD279), a negative co-stimulator in the immune system. PD-1 renders potent inhibitory effects on T and B lymphocytes as well as monocyte responses. Expression of PD-1 ligands by tumor cells has been reported to contribute in immune system evasion. We aimed, in current study, to investigate the association of two single nucleotide polymorphisms in PD1 gene, +7146 G to A (PD-1.3) and +7785 C to T (PD-1.5 or +872), with susceptibility and/or progression of breast carcinoma. Four hundred forty-three women with breast cancer and 328 age-sex match healthy donors were recruited in present study. Genotyping was performed using Nested polymerase chain reaction-restriction fragment length polymorphisms. Arlequin software package was used to check for the Hardy–Weinberg equilibration and to determine the haplotypes. Results revealed no significant differences in the frequencies of genotypes and alleles at PD-1.3 (P = 0.252 and 0.279 for genotypes and alleles, respectively) and PD-1.5 positions (P = 0.522 and 0.278 for genotypes and alleles, respectively). Four haplotypes were observed among populations with no differences in the frequency between patients and controls. Our results also revealed no association between PD1 genotypes and tumor stage, tumor size, tumor grade, lymph node involvement, vascular invasion, distant metastasis, and Nottingham prognostic index. Present data do not confirm association of PD-1.3 (+7146) G/A and PD-1.5 (+7785 or +872) C/T genetic markers with susceptibility of Iranians to breast cancer.

Keywords

Program death-1 (PD-1) Breast cancer Immune suppression Haplotype 

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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • Mohammad Reza Haghshenas
    • 1
  • Sirous Naeimi
    • 1
  • Abdolrasoul Talei
    • 2
  • Abbas Ghaderi
    • 1
    • 3
  • Nasrollah Erfani
    • 1
  1. 1.Cancer Immunology Research Group, Shiraz Institute for Cancer ResearchShiraz University of Medical SciencesShirazIran
  2. 2.Department of SurgeryShiraz University of Medical SciencesShirazIran
  3. 3.Department of ImmunologyShiraz University of Medical SciencesShirazIran

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