Tumor Biology

, Volume 34, Issue 2, pp 1053–1059 | Cite as

Significant correlation of TLR4 expression with the clinicopathological features of invasive ductal carcinoma of the breast

  • Naureen Ehsan
  • Sheeba Murad
  • Tamour Ashiq
  • Muhammad Uzair Mansoor
  • Summer Gul
  • Samra Khalid
  • Muhammad Younas
Research Article


Toll-like receptor 4 belongs to the family of pattern recognition receptors and is therefore an important part of innate immunity. Since the last decade, Toll-like receptors (TLRs) have gained much interest in cancer research due to their role in tumor progression. However, there is scarcity of data evaluating TLR4 expression in different cell populations of tumor in relation to clinicopathological parameters of invasive ductal carcinoma of the breast. Therefore, we investigated TLR4 expression in 50 primary invasive ductal carcinoma and 17 lymph node sections through immunohistochemistry. Significant association of TLR4 expression with local metastasis and absence of necrosis was observed. The incidence of lymph node metastasis was higher in patients with high TLR4 expression in the tumor cells. We also observed an interesting inverse relationship of TLR4 with necrosis. In endothelial and lymphocytic population constituting breast tumors, a significant association of TLR4 expression was seen with the tumor grade. Therefore, we conclude that TLR4 expression is of biological interest both as a prognostic marker as well as a possible therapeutic target.


Breast cancer Inflammation TLR4 Lymph node metastasis Necrosis 



We are thankful to the Higher Education Commission of Pakistan and the recurring budget of ASAB provided by NUST for the financial support of this project.

Conflicts of interest



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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2013

Authors and Affiliations

  • Naureen Ehsan
    • 1
  • Sheeba Murad
    • 1
  • Tamour Ashiq
    • 1
  • Muhammad Uzair Mansoor
    • 2
  • Summer Gul
    • 1
  • Samra Khalid
    • 1
  • Muhammad Younas
    • 3
  1. 1.Atta-Ur-Rahman School of Applied BiosciencesNational University of Science and TechnologyIslamabadPakistan
  2. 2.Institute of Applied Health Sciences, Rawalpindi Medical CollegeHoly Family HospitalRawalpindiPakistan
  3. 3.Benazir Bhutto HospitalRawalpindiPakistan

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