AIMS: GATA-binding protein 3 (GATA3) is a sensitive and relatively specific marker in breast and urothelial carcinomas. Its diagnostic utility in primary and metastatic breast cancers has been explored and confirmed. However, the relationship between GATA3 expression and different breast carcinoma intrinsic subtypes has not been specifically defined in the literature despite a few reports with a small number of cases. The aim of the current investigation is to clarify GATA3 expression among different histological subtypes and surrogate molecular breast carcinoma subtypes in a large series of cases. METHODS: Immunohistochemical staining of GATA3, GCDFP15 and mammaglobin was performed in a cohort of 1637 cases of primary invasive breast carcinoma. The association of GATA3 expression with different histological and surrogate intrinsic subtypes was assessed and compared with the expression of GCDFP15 and mammaglobin. RESULTS: The overall positivity of GATA3 across the various immunohistochemistry-based surrogate intrinsic subtypes was 99.51% for luminal A-like, 97.70% for luminal B-like, 68.50% for HER2 overexpression and 20.16% for triple negative breast cancers. GATA3 expression was positively correlated with estrogen receptor (ER)-positive (luminal subtypes) breast carcinomas. For luminal-like and HER2 overexpression subtypes, GATA3 was much more sensitive than GCDFP15 and mammaglobin. For triple negative tumours, GATA3 was less sensitive than GCDFP15. CONCLUSIONS: GATA3 exhibits a relatively high sensitivity for breast carcinomas. It is more sensitive than GCDFP15 and mammaglobin in luminal-like and HER2 overexpression subtypes. GATA3 expression is associated with breast carcinomas of luminal subtype and low histological grade. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.
AIMS: GATA-binding protein 3 (GATA3) is a sensitive and relatively specific marker in breast and urothelial carcinomas. Its diagnostic utility in primary and metastatic breast cancers has been explored and confirmed. However, the relationship between GATA3 expression and different breast carcinoma intrinsic subtypes has not been specifically defined in the literature despite a few reports with a small number of cases. The aim of the current investigation is to clarify GATA3 expression among different histological subtypes and surrogate molecular breast carcinoma subtypes in a large series of cases. METHODS: Immunohistochemical staining of GATA3, GCDFP15 and mammaglobin was performed in a cohort of 1637 cases of primary invasive breast carcinoma. The association of GATA3 expression with different histological and surrogate intrinsic subtypes was assessed and compared with the expression of GCDFP15 and mammaglobin. RESULTS: The overall positivity of GATA3 across the various immunohistochemistry-based surrogate intrinsic subtypes was 99.51% for luminal A-like, 97.70% for luminal B-like, 68.50% for HER2 overexpression and 20.16% for triple negative breast cancers. GATA3 expression was positively correlated with estrogen receptor (ER)-positive (luminal subtypes) breast carcinomas. For luminal-like and HER2 overexpression subtypes, GATA3 was much more sensitive than GCDFP15 and mammaglobin. For triple negative tumours, GATA3 was less sensitive than GCDFP15. CONCLUSIONS:GATA3 exhibits a relatively high sensitivity for breast carcinomas. It is more sensitive than GCDFP15 and mammaglobin in luminal-like and HER2 overexpression subtypes. GATA3 expression is associated with breast carcinomas of luminal subtype and low histological grade. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.
Authors: Katarzyna J Jerzak; Nechama Lipton; Sharon Nofech-Mozes; Dina Boles; Elzbieta Slodkowska; Gregory R Pond; Ellen Warner Journal: Breast Cancer Res Treat Date: 2021-07-27 Impact factor: 4.872
Authors: Audrey Player; Nissi Abraham; Kayla Burrell; Iria Ondo Bengone; Anthony Harris; Lisa Nunez; Telisa Willaims; Sharon Kwende; Wiley Walls Journal: Genes Cancer Date: 2017-07
Authors: Jasleen K Grewal; Peter Eirew; Martin Jones; Kenrry Chiu; Basile Tessier-Cloutier; Anthony N Karnezis; Aly Karsan; Andy Mungall; Chen Zhou; Stephen Yip; Anna V Tinker; Janessa Laskin; Marco Marra; Steven J M Jones Journal: Cold Spring Harb Mol Case Stud Date: 2017-11-21