1. Measurement of serum levels of Retinoic acid induced 14 (RAI14) and Metastasis associated cancer colon -1 (MACC-1) as biomarkers for diagnosis of breast cancer.
2. Study their relationship to disease stages and clinicopathological features of BC.
3. Compare the diagnostic performance of serum RAI14 and serum MACC-1 with serum Carcinoembryonic antigen (CEA) and Cancer antigen 15-3 (CA15-3) for diagnosis of BC.

Breast cancer (BC) is one of the most prevalent Neoplasms and the second leading reason of death from cancer in women. Every year approximately 2.3 million new cases of BC are diagnosed worldwide. Due to the high impact of this type of cancer, the early detection, early diagnosis and effective treatment, will improve the diagnosis of patients and lower the associated mortality rates. Carcinoembryonic antigen (CEA) and Cancer antigen 15-3 (CA15-3) are the most commonly used serum markers in the diagnosis and follow up of BC, However their clinical applications still remain controversial.

Retinoic acid induced protein 14 (RAI14) is an actin-binding protein which participates in physiological processes such as the regulation of cell polarity and transport of spermatozoa. Recent studies showed that RAI14 is overexpressed in several malignant tumors with a significant role in the development of tumors . The serum RAI14 is a reliable novel marker in the early diagnosis and chemotherapy monitoring of triple-negative BC.

Metastasis-associated colon cancer-1 (MACC-1) is a newly identified tumor marker, first identified in colon cancer tissue as a prognostic indicator and inducer of metastasis .It is located on human chromosome 7 (7p21.1) and shown to be a key regulator of the hepatocyte growth factor-mesenchymal epithelial transition factor( HGF-MET) pathway in colon cancer. It is shown that serum MACC-1 can be a potential biomarker for diagnosis and progression in patients with BC. There was a strong correlation between MACC-1 expression and the clinical and the primary tumor, regional nodes, metastasis (TNM) stages of BC.

Inclusion Criteria:

1. Patients with benign breast lesions.
2. Patients with breast cancer who were confirmed by histopathological studies and did not receive any treatment.

Exclusion Criteria: 1- Patients who received chemotherapy or radiotherapy. 2- Patients with known other organ malignancy.

The study will be carried out on 3 groups

• Group (1)(patient group):

  30 newly diagnosed patients with breast cancer, who will be admitted Clinical Pathology Department, Assiut University Hospitals, Assiut University Patients group will be furtherly subclassified according to the TNM staging classification .

• Group (2) (benign lesions) 30 diagnosed patients with benign breast lesions.

• Group (3) (control group):

  30 apparently healthy individuals with matched age and sex are included in this study as a control group for comparison.