CD56+ immune cell infiltration and MICA are decreased in breast lobules with fibrocystic changes

Autor: Stacey J. Winham, Rushin D. Brahmbhatt, Derek C. Radisky, Lori A. Denison, Amy C. Degnim, Jodi M. Carter, Linda M. Murphy, Muhammad Arshad, Keith L. Knutson, Tanya L. Hoskin, Marlene H. Frost, Alvaro Pena, Melody Stallings-Mann, Daniel Kerekes, Daniel W. Visscher
Rok vydání: 2017
Předmět:
Zdroj: Breast Cancer Research and Treatment
ISSN: 1573-7217
0167-6806
Popis: Purpose While the role of natural killer (NK) cells in breast cancer therapy has been investigated, little information is known about NK cell function and presence in nonmalignant and premalignant breast tissue. Here, we investigate and quantify NK cell marker CD56 and activating ligand MICA in breast tissue with benign breast disease. Methods Serial tissue sections from 88 subjects, 44 with benign breast disease (BBD) who remained cancer-free, and 44 with BBD who later developed cancer, were stained with H&E, anti-MICA, and anti-CD56. Up to ten representative lobules were identified on each section. Using digital image analysis, MICA and CD56 densities were determined for each lobule, reported as percent of pixels in the lobule that registered as stained by each antibody. Analyses were performed on a per-subject and per-lobule basis. Results Per-subject multivariate analyses showed associations of CD56 and MICA with age: CD56 was increased in older subjects (p = 0.03), while MICA was increased in younger subjects (p = 0.005). Per-lobule analyses showed that CD56 and MICA levels were both decreased in lobules with fibrocystic change, with median levels of CD56 and MICA staining, respectively, at 0.31 and 7.0% in fibrocystic lobules compared to 0.76 and 12.2% in lobules without fibrocystic change (p
Databáze: OpenAIRE