The aim of the study was to assess the immunohistochemical (IHC) profiles of SRC3, Pax2, ER, PgR, Her2, EGFR, CK5/6, and Ki67 proteins in breast-cancer brain metastasis. The study utilized tumor samples from 30 metastatic patients and calculated correlations between all IHC variables. In fourteen cases, primary breast cancers paired with secondary deposits were analyzed. We evaluated the association between IHC status in the primary and secondary deposits, grade, and histotype of the tumors. The examination of the metastatic deposits in all 30 patients resulted in positive detection in the following cases: SRC3 in 20 cases (66.6%), Pax2 in 22 (73.3%), ER in 22 (73.3%), PgR in 25 (83.3%), Her2 in 10 (33.3%), EGFR in 12 (40%), CK5/6 in 7 (23.3%), and Ki67 in 23 (76.6%). Grade 2 was found in 13.3% of all patients, and grade 3 in 86.7%. SRC3 and Pax2 were positive in both G2 and G3. Invasive lobular carcinoma and invasive ductal carcinoma were diagnosed in 23.3% and 76.7% of cases, respectively. There were no differences between the IHC expression of the studied proteins in either grading or histotype of the tumors. In the IHC profiles, which included SRC3, Pax2, ER, PgR, Her2, CK5/6, Ki67, and EGFR, we found no statistically significant differences between the primary cancer and the brain metastasis. In our study of metastatic breast carcinoma deposits, there was no correlation between SRC3, Pax2 status and histotype, and tumor grade. The IHC status of the paired primary and metastatic deposits did not differ in a statistically significant manner.
- MeSH
- alfa receptor estrogenů genetika metabolismus MeSH
- antigen Ki-67 genetika metabolismus MeSH
- dospělí MeSH
- erbB receptory genetika metabolismus MeSH
- karcinom diagnóza metabolismus MeSH
- koaktivátor 3 jaderných receptorů genetika metabolismus MeSH
- lidé středního věku MeSH
- lidé MeSH
- nádory mozku diagnóza metabolismus sekundární MeSH
- nádory prsu diagnóza metabolismus MeSH
- receptor erbB-2 genetika metabolismus MeSH
- receptory progesteronu genetika metabolismus MeSH
- regulace genové exprese u nádorů * MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- transkripční faktor PAX2 genetika metabolismus MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- alfa receptor estrogenů MeSH
- antigen Ki-67 MeSH
- erbB receptory MeSH
- ERBB2 protein, human MeSH Prohlížeč
- koaktivátor 3 jaderných receptorů MeSH
- NCOA3 protein, human MeSH Prohlížeč
- PAX2 protein, human MeSH Prohlížeč
- receptor erbB-2 MeSH
- receptory progesteronu MeSH
- transkripční faktor PAX2 MeSH
