Low Plasmatic 25-hydroxyvitamin D at Diagnosis is Associated with Axillary Invasion, Chemoresistance and Metastasis in Women with Breast Cancer

Autor: Daniel Rech, Durcelina Schiavoni Bortoloti, Pâmella Lonardoni Micheletti, A. C. S. A. Herrera, Andréa Name Colado Simão, Carolina Panis, Vanessa Jacob Victorino, Bruno R. B. Pires, Adma Poliana de Borba Cecílio da Silva, Isaias Dichi, Rodrigo Kern
Rok vydání: 2020
Předmět:
Zdroj: Archives of medical research. 51(6)
ISSN: 1873-5487
Popis: Purpose In this study, we investigated the circulating levels of 25-hydroxyvitamin D (25[OH]D) in Brazilian women with breast cancer in samples collected at diagnosis, and correlated these with clinicopathological parameters relevant to disease prognosis. Methods This study involved 147 women diagnosed with infiltrative ductal carcinoma whose peripheral blood samples were collected, to have 25(OH)D levels measured in plasma. Results Our findings indicated that circulating 25(OH)D levels at diagnosis were insufficient in patients with breast cancer. Further, 25(OH)D reduced plasmatic levels at diagnosis correlated significantly with poor prognosis parameters, including axillar positivity, chemoresistance and metastasis. Patients bearing triple-negative tumors also presented reduced 25(OH)D in plasma when compared to those who carried Luminal tumors. Our data suggest relevant correlations when 25(OH)D is reduced in plasma at diagnosis, such as advanced disease with axillar positivity, chemoresistance with advanced disease, early age at diagnosis with high histological grade and dead with axilla positivity. Conclusions: Altogether, our findings reinforce that 25(OH)D reduction can be a plausible marker of disease prognosis in breast cancer.
Databáze: OpenAIRE