alexa Investigation of Telomerase Activity in Inflammatory and Non Inflammatory Breast Cancer | OMICS International | Abstract
ISSN: 1948-5956

Journal of Cancer Science & Therapy
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Research Article

Investigation of Telomerase Activity in Inflammatory and Non Inflammatory Breast Cancer

Ayman Maher Ibrahim1*, Salwa Farouk Sabet2 and Mohamed El-Shinawi2

1Faculty of Science, Cairo University, Egypt

2Associate Professor of General Surgery, Ain Shams University, Cairo, Egypt

*Corresponding Author:
Ayman Maher Abdel Moneem Ibrahim
Assistant Lecturer
Faculty of Science
Cairo University, Egypt
E-mail: [email protected]

Received date: September 06, 2012; Accepted date: October 02, 2012; Published date: October 04, 2012

Citation:Ibrahim AM, Sabet SF, El-Shinawi M(2012) Investigation of Telomerase Activity in Inflammatory and Non Inflammatory Breast Cancer. J Cancer Sci Ther 4:360-367. doi:10.4172/1948-5956.1000168

Copyright: © 2012 Ibrahim AM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Background: Inflammatory breast cancer (IBC) is an aggressive type of breast cancer disease that has a high incidence in Egypt than western countries. It is characterized by rapid progression, involvement of dermal lymphatic emboli and extensive lymph node involvement. Basic and translational studies are needed to define IBC disease biology and identify specific biomarkers have been limited by the paucity of patient samples. Hence, the current study aimed to introduce the telomerase activity level as a novel diagnostic marker for breast cancer and specifically for IBC to be differentiated from non-IBC.
 
Methods:
Breast cancer patients were enrolled from Ain Shams University hospitals in Cairo, divided into two groups: IBC (n=26) and non-IBC (n=27). Tissue samples were collected during modified radical mastectomy. TRAP (Telomerase repeat amplification protocol) assay was used to assess the telomerase activity in inflammatory and non inflammatory breast cancer tissue samples. Immunohistochemistry was used to investigate the expression of hTERT subunit of telomerase in paraffin embedded tissue samples of both types of patients.
 
Results: IBC showed Telomerase activity ranged from 12.2 to 367.1 units with a mean value of 78 and a median value of 43, while telomerase activity in non-IBC ranged from 6.1 to 109.34 units with a mean value of 41.1 and a median value of 24. On the other hand, normal tissues showed telomerase activity below 5 (P<0.001). Using immunohistochemistry, the hTERT expression was higher in IBC than non-IBC and no expression at all in normal tissues. Moreover, a positive mild correlation was found between the telomerase activity and the number of metastatic lymph nodes in both IBC (r=0.53) and non-IBC (r=0.54).
 
Conclusions:
Telomerase could be a promising marker at the diagnostic and therapeutic levels in breast cancer and specifically in IBC.

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