Evaluation of role of serum prolactin & ki-67 in different stages of breast cancer

Breast cancer is the most frequent cancer among women. Prolactin (PRL) is a hormone secreted from anterior pituitary gland which stimulates cell proliferation, survival of cancer cells, its migration, invasion and angiogenesis. Breast cancer is strongly associated with raised plasma Prolactin level (PRL). The Prolactin behaves like Growth Hormone and its actions by the growth-promoting JAK/STAT pathway suggests its tumor-promoting effects.Ki-67 a Nuclear Protein is highest in Luminal B, Ki67 are not related to age but is correlated with tumor size. Fraction of Ki-67 positive tumor cells correlates with the clinical course of cancer cells. Hence, Ki- 67 can be an effective target in cancer therapy. Ki-67% and Serum Prolactin level may be considered a valuable biomarker in breast cancer patients and be used in treatment, follow-up and Prognosis.