CORRELATION OF TUMOR MARKERS HER2 NEU ER PR AND KI 67 IN BREAST CANCER PATIENTS

: Every year, more than a million women are diagnosed with breast cancer, and over 700.000 of them have positive for hormone receptors (FIR). The expression of key markers, such as ER and PP, and clinical circumstances show specific biological traits. Risk factors may have a role in the development of some hormone receptor-positive breast cancers. Objective: The objective of this study was to investigate the correlations between key tumor markers, including HER2, ER, PR, ALP, and KI67, in hormone receptor-positive breast cancers. Methods: Tumour tissue samples were collected for histopathology (10% neutral buffered Formalin-fixed paraffin-embedded tissue specimens) during Trucut biopsy or mastectomy at the oncology department of a tertiary care hospital in Karachi from October 2022 to July 2023. Tissues were analyzed under a light microscope for tumor hormone receptors at a tertiary care hospital in Karachi.  Results: There were several significant correlations observed between HER 2 NUE, KI 67, ER, and PR. Specifically, a weak negative correlation was noted between HER 2 NUE and KI 67, while weak positive correlations were observed between HER 2 NUE and both ER and PR. Additionally, a weak positive correlation was found between ER and HER 2 NUE, PR, and KI 67, and a weak positive correlation existed between PR and ER, HER 2 NUE, and KI 67. Finally, KI 67 displayed a weak positive correlation with HER 2 NUE, PR, and ER. Conclusions: Her two nurses, ER, ALP, KI 67, and breastfeeding, are significantly and directly related. PR is not significantly related to other mentioned tumor markers.