Prolactin Induced Protein (PIP) is a potential biomarker for early stage and malignant breast cancer.

CONCLUSIONS: PIP mRNA is significantly downregulated in early stage BC compared to normal breast tissue. Consequently, low PIP mRNA expression in BC tissues could potentially be used as a tissue based biomarker to assist pathologists in confirmation of early stage BC diagnosis. PMID: 29656222 [PubMed - as supplied by publisher]

https://www.ncbi.nlm.nih.gov/pubmed/29656222?dopt=Abstract

Source: Breast - April 12, 2018 Category: Cancer & Oncology Authors: Gangadharan A, Nyirenda T, Patel K, Jaimes-Delgadillo N, Coletta D, Tanaka T, Walland AC, Jameel Z, Vedantam S, Tang S, Mannion C, Lee GY, Goy A, Pecora A, Suh KS Tags: Breast Source Type: research