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Ki67 breast cancer

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https://www.readbyqxmd.com/read/28730768/modulatory-effect-of-neoadjuvant-chemotherapy-on-the-prognosis-of-patients-with-breast-cancer
#1
Jasna Trifunovic, Numa Memisevic, Borislava Nikolin, Svetlana Salma, Tihomir Dugandzija, Vladimir Vidovic
PURPOSE: To evaluate the changes in biological markers ER, PR, HER2 and Ki67 in residual tumor after surgery for locally advanced breast cancer (LABC), and also to evaluate the outcome of breast cancer patients treated with neoadjuvant chemotherapy (NAC). METHODS: 144 breast cancer patients treated with NAC at the Oncology Institute of Vojvodina, Serbia from 2011 to 2015 were included in this study. Changes in biologic markers ER,PR, HER2/neu and Ki-67 were evaluated at diagnostic core biopsy and at the final surgery tissue specimens...
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28730338/jagged1-promotes-aromatase-inhibitor-resistance-by-modulating-tumor-associated-macrophage-differentiation-in-breast-cancer-patients
#2
Hang Liu, Jingxuan Wang, Minghui Zhang, Qijia Xuan, Zhipeng Wang, Xin Lian, Qingyuan Zhang
PURPOSE: Endocrine resistance limits the efficacy of anti-estrogen therapies. Notch signaling is involved in modulating tumor-associated macrophage (TAM) differentiation and is upregulated in endocrine-resistant breast cancer cells. Here, we analyzed the role of Jagged1 in the regulation of TAM polarization to investigate whether the Jagged1-Notch pathway promotes the acquisition of aromatase inhibitor (AI) resistance by upregulating TAM infiltration. METHODS: The Jagged1 expression levels and M2 TAM infiltration density, in 203 tumor samples from ER-positive postmenopausal patients, who received AI treatment, were evaluated by immunohistochemical staining and the results were compared with clincopathological parameters and survival...
July 20, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28711994/-18-f-fdg-pet-ct-features-for-the-molecular-characterization-of-primary-breast-tumors
#3
Lidija Antunovic, Francesca Gallivanone, Martina Sollini, Andrea Sagona, Alessandra Invento, Giulia Manfrinato, Margarita Kirienko, Corrado Tinterri, Arturo Chiti, Isabella Castiglioni
PURPOSE: The aim of this study was to evaluate the role of imaging features derived from [(18)F]FDG-PET/CT to provide in vivo characterization of breast cancer (BC). METHODS: Images from 43 patients with a first diagnosis of BC were reviewed. Images were acquired before any treatment. Histological data were derived from pretreatment biopsy or surgical histological specimen; these included tumor type, grade, ER and PgR receptor status, lymphovascular invasion, Ki67 index, HER2 status, and molecular subtype...
July 15, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28711929/predictive-value-of-molecular-subtyping-in-nmibc-by-rt-qpcr-of-erbb2-esr1-pgr-and-mki67-from-formalin-fixed-tur-biopsies
#4
Johannes Breyer, Ralph Markus Wirtz, Wolfgang Otto, Mark Laible, Kornelia Schlombs, Philipp Erben, Maximilian Christian Kriegmair, Robert Stoehr, Sebastian Eidt, Stefan Denzinger, Maximilian Burger, Arndt Hartmann
Expression of ESR1, PGR, HER2 and Ki67 is important for risk stratification and therapy in breast cancer. Hormone receptor expression can also be found in MIBC, reflecting luminal and basal subtypes of breast cancer. Thus the purpose was to investigate on the mRNA expression of the aforementioned markers and their prognostic value in pT1 bladder cancer. Retrospective analysis of clinical data and Formalin-Fixed Paraffin-Embedded tissues (FFPE) of patients with stage pT1 NMIBC who underwent transurethral resection of the bladder was performed...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28699235/expression-patterns-of-claudins-in-patients-with-triple-negative-breast-cancer-are-associated-with-nodal-metastasis-and-worse-outcome
#5
Ayaka Katayama, Tadashi Handa, Kei Komatsu, Maria Togo, Jun Horiguchi, Masahiko Nishiyama, Tetsunari Oyama
Claudins (CLDNs) are key cell adhesion molecules, which compose tight junctions (TJs), and the disruption of TJs is associated with cancer development. Here we immunohistochemically studied expression patterns of CLDNs in 222 primary invasive breast cancers including 68 triple-negative breast cancers (TNBCs), and examined their correlation with epithelial-to-mesenchymal transition (EMT)-related markers, breast cancer stem cell (BCSC) markers, and clinicopathological features including patients' clinical outcome...
July 11, 2017: Pathology International
https://www.readbyqxmd.com/read/28681171/a-randomized-phase-ii-trial-of-ridaforolimus-dalotuzumab-and-exemestane-compared-with-ridaforolimus-and-exemestane-in-patients-with-advanced-breast-cancer
#6
Hope S Rugo, Olivier Trédan, Jungsil Ro, Serafin M Morales, Mario Campone, Antonino Musolino, Noémia Afonso, Marta Ferreira, Kyong Hwa Park, Javier Cortes, Antoinette R Tan, Joanne L Blum, Lamar Eaton, Christine K Gause, Zhen Wang, Ellie Im, David J Mauro, Mary Beth Jones, Andrew Denker, José Baselga
PURPOSE: To evaluate whether adding humanized monoclonal insulin growth factor-1 receptor (IGF-1R) antibody (dalotuzumab) to mammalian target of rapamycin (mTOR) inhibitor (ridaforolimus) plus aromatase inhibitor (exemestane) improves outcomes in patients with estrogen receptor (ER)-positive advanced/metastatic breast cancer. METHODS: This randomized, open-label, phase II trial enrolled 80 postmenopausal women with high-proliferation (Ki67 index staining ≥15%), ER-positive breast cancer that progressed after a non-steroidal aromatase inhibitor (NCT01605396)...
July 5, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28669712/lessons-in-precision-oncology-from-neoadjuvant-endocrine-therapy-trials-in-er-breast-cancer
#7
Matthew J Ellis
For post-menopausal women with clinical stage II/III estrogen receptor positive (ER+) breast cancer neoadjuvant endocrine therapy (NET) is an under-utilized and low-toxicity alternative to chemotherapy for increasing breast conservation rates. Individual responses to endocrine therapy can also be used to tailor systemic treatment. The Preoperative Endocrine Prognostic Index (PEPI) was developed to identify patients at low risk of relapse after NET so that adjuvant chemotherapy can safely be avoided. In a recent validation study, patients with pathological stage 1 or 2A breast cancers with a Ki67 value of 2...
June 29, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28666267/cell-specific-regulation-of-proliferation-by-ano1-tmem16a-in-breast-cancer-with-different-er-pr-and-her2-status
#8
Huizhe Wu, Hui Wang, Shu Guan, Jing Zhang, Qiuchen Chen, Xiaodong Wang, Ke Ma, Pengfei Zhao, Haishan Zhao, Weifan Yao, Feng Jin, Qinghuan Xiao, Minjie Wei
The calcium-activated chloride channel Ano1 (TMEM16A) is overexpressed in many tumors. However, conflicting data exist regarding the role of Ano1 in cell proliferation. Here, we performed immunohistochemistry to investigate the expression of Ano1 and Ki67 in 403 patients with breast cancer, and analyzed the association between the expression of Ano1 and Ki67 in breast cancer subtypes categorized according to estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2)...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28662222/use-of-molecular-tools-to-identify-patients-with-indolent-breast-cancers-with-ultralow-risk-over-2-decades
#9
Laura J Esserman, Christina Yau, Carlie K Thompson, Laura J van 't Veer, Alexander D Borowsky, Katherine A Hoadley, Nicholas P Tobin, Bo Nordenskjöld, Tommy Fornander, Olle Stål, Christopher C Benz, Linda S Lindström
Importance: The frequency of cancers with indolent behavior has increased with screening. Better tools to identify indolent tumors are needed to avoid overtreatment. Objective: To determine if a multigene classifier is associated with indolent behavior of invasive breast cancers in women followed for 2 decades. Design, Setting, and Participants: This is a secondary analysis of a randomized clinical trial of tamoxifen vs no systemic therapy, with more than 20-year follow-up...
June 29, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28641315/sequential-vs-concurrent-epirubicin-and-docetaxel-as-adjuvant-chemotherapy-for-high-risk-node-negative-early-breast-cancer-an-interim-analysis-of-a-randomised-phase-iii-study-from-the-hellenic-oncology-research-group
#10
Dimitrios Mavroudis, Emmanouil Saloustros, Ioannis Boukovinas, Pavlos Papakotoulas, Stylianos Kakolyris, Nikolaos Ziras, Charalampos Christophylakis, Nikolaos Kentepozidis, Georgios Fountzilas, Georgios Rigas, Ioannis Varthalitis, Konstantinos Kalbakis, Sofia Agelaki, Dora Hatzidaki, Vasilios Georgoulias
BACKGROUND: Sequential anthracyclines and taxanes are standard adjuvant chemotherapy for patients with high-risk axillary node-positive breast cancer. We compared a sequential to a concurrent regimen in high-risk node-negative early breast cancer. METHODS: Patients were eligible if they had tumours >2 cm or T1c with two of the following characteristics: no oestrogen receptor (ER) and progesterone receptor (PR) expression, histological grade III, Ki67 >40% and vascular, lymphovascular or perineural invasion...
July 11, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28637432/current-guidelines-for-brca-testing-of-breast-cancer-patients-are-insufficient-to-detect-all-mutation-carriers
#11
Eli Marie Grindedal, Cecilie Heramb, Inga Karsrud, Sarah Louise Ariansen, Lovise Mæhle, Dag Erik Undlien, Jan Norum, Ellen Schlichting
BACKGROUND: Identification of BRCA mutations in breast cancer (BC) patients influences treatment and survival and may be of importance for their relatives. Testing is often restricted to women fulfilling high-risk criteria. However, there is limited knowledge of the sensitivity of such a strategy, and of the clinical aspects of BC caused by BRCA mutations in less selected BC cohorts. The aim of this report was to address these issues by evaluating the results of BRCA testing of BC patients in South-Eastern Norway...
June 21, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28628772/prognostic-impact-of-proliferation-for-resected-early-stage-pure-invasive-lobular-breast-cancer-cut-off-analysis-of-ki67-according-to-histology-and-clinical-validation
#12
Luisa Carbognin, Isabella Sperduti, Alessandra Fabi, Maria Vittoria Dieci, Dzenete Kadrija, Gaia Griguolo, Sara Pilotto, Valentina Guarneri, Ilaria Zampiva, Matteo Brunelli, Enrico Orvieto, Rolando Nortilli, Elena Fiorio, Veronica Parolin, Erminia Manfrin, Anna Caliò, Cecilia Nisticò, Francesca Pellini, Aldo Scarpa, Giovanni Paolo Pollini, Pierfranco Conte, Giampaolo Tortora, Emilio Bria
INTRODUCTION: The intent of this analysis was to investigate and validate the prognostic potential of Ki67 in a multi-center series of patients affected by early stage 'pure' invasive lobular carcinoma (ILC). METHODS: Clinical-pathological data of patients affected by ILC were correlated with overall survival and disease-free survival (OS/DFS); data from a parallel invasive ductal carcinoma (IDC) patients' cohort were gathered as well. The maximally selected Log-Rank statistics analysis was applied to Ki67 continuous variable to estimate the appropriate cut-off...
June 16, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28626128/a-case-of-matrix-producing-carcinoma-of-the-breast
#13
Yuzuru Inoue, Fumi Joden, Kei Yabuki, Nagahiro Sato, Noritaka Minagawa, Takefumi Katsuki, Norihiro Sato, Takahisa Nagata, Kazunori Shibao, Atsuji Matsuyama, Takatoshi Aoki, Keiji Hirata
A 61-year-old woman was referred to our hospital because of a right breast mass. A 19 mm hard mass was palpable in the A area of the right breast. A contrast-enhanced MRI showed rim enhancement at the peripheral region of the tumor, which was thought to represent the carcinoma component mainly at the periphery and the matrix component inside the tumor. A low density mass with rim enhancement at the peripheral region was observed in a contrast-enhanced CT, the same as in the MRI. Neither axillary lymph node metastasis nor distant metastasis was observed...
2017: Journal of UOEH
https://www.readbyqxmd.com/read/28611275/predictive-factors-of-pathologic-complete-response-in-her2-positive-and-axillary-lymph-node-positive-breast-cancer-after-neoadjuvant-paclitaxel-carboplatin-plus-with-trastuzumab
#14
Jinhua Ding, Yinlong Yang, Li Jiang, Weizhu Wu, Zhiming Shao
OBJECTIVE: This study was performed to investigate the proportion as well as the predictive factors of pathologic complete response in HER2-positive and axillary lymph node positive breast cancer after neoadjuvant paclitaxel, carboplatin plus with trastuzumab (PCH). RESULTS: The pCR rate in the breast, axilla and both was 44.3% (39/88), 47.7% (42/88) and 34.1% (30/88), respectively. Patients with and without pCR were similar in term of age, BMI, menstrual status, family history, treatment cycles and tumor characteristics (laterality and size of tumor)...
May 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28603063/overexpression-of-phosphoprotein-phosphatase-2a-predicts-worse-prognosis-in-patients-with-breast-cancer-a-15-year-follow-up
#15
Po-Ming Chen, Pei-Yi Chu, Shiao-Lin Tung, Chun-Yu Liu, Yi-Fang Tsai, Yen-Shu Lin, Wan-Lun Wang, Yu-Ling Wang, Pei-Ju Lien, Ta-Chung Chao, Ling-Ming Tseng
Breast cancer subtypes can be stratified by immunohistochemical (IHC) expression of estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor 2 (HER2). The signaling pathways mediated by these receptors are the dominant drivers of cell proliferation and survival in the majority of human breast cancers. One of the most frequently overactivated pathways in breast cancer is the AKT signaling cascade. Protein phosphatase 2A (PP2A) acts as a switch to turn off signal transduction in the AKT pathway; however, it is frequently inactivated in many cancers by phosphorylation of Tyr-307 to form phosphoprotein phosphatase 2A (p-PP2A)...
June 8, 2017: Human Pathology
https://www.readbyqxmd.com/read/28599471/mir-200b-inhibits-cd133-glioma-cells-by-targeting-the-akt-pathway
#16
Aiqun Liu, Qingyun Yu, Zhongxing Peng, Yeqing Huang, Shengpeng Diao, Jing Cheng, Wentao Wang, Mingfan Hong
MicroRNA-200b (miR-200b) is a tumor suppressor in multiple tumor types, including gastric cancer, breast cancer, ovarian cancer and glioma. The biological significance of a known normal and cancer stem cell marker, CD133, remains elusive. The aim of the present study was to identify the function and mechinism of miR-200b in suppressing CD133(+) glioma cells. CD133(+) glioma cells were sorted by flow cytometry. The expression of miR-200b, Ki67, GAP43, GFAP and CD133 were tested by reverse transcription-quantitative polymerase chain reaction...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28599424/wnt10b-is-critical-for-the-progression-of-gastric-cancer
#17
Xiao-Dan Wu, Qing-Li Bie, Bin Zhang, Zi-He Yan, Zhi-Jun Han
The family of Wnt proteins have been implicated in embryogenesis by regulation of cell fate and pattern formation, and also in human carcinogenesis. Wnt10B was previously shown to be involved in breast cancer development. The present study assessed the association of Wnt10B expression in human gastric cancer tissue specimens with clinicopathological data from these patients. Wnt10B expression in the regulation of gastric cancer cell proliferation and migration capacity in vitro was then investigated. The data revealed that Wnt10B mRNA and protein were upregulated in gastric cancer tissue samples and the upregulated Wnt10B mRNA was associated with gastric cancer metastasizing to lymph nodes...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28599277/correlation-analysis-between-molecular-subtypes-and-nottingham-prognostic-index-in-breast-cancer
#18
Hongchao Zhen, Liuting Yang, Li Li, Junxian Yu, Lei Zhao, Yingying Li, Qin Li
Molecular subtypes and Nottingham Prognostic Index (NPI) are both prognostic models for breast cancer patients. We evaluated the association between molecular subtypes and NPI in 1042 breast cancer patients. The molecular subtypes indicating poorer prognosis were positively correlated to higher NPI (r = 0.138, P = 0.001). ER positive expression and PR high expression were positively correlated with NPI (r = 0.142, P = 0.001; r = 0.139, P = 0.001; respectively) and negatively correlated with histological grade (r = -0...
May 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28593885/prognostic-factors-on-the-positivity-for-metastases-of-the-axillary-lymph-nodes-from-primary-breast-cancer
#19
Borislav Kondov, Goran Kondov, Zoran Spirovski, Zvonko Milenkovikj, Risto Colanceski, Gordana Petrusevska, Meri Pesevska
AIM: The aim of the study was to identify the impact of T stage, the presence of estrogen, progesterone, HER2neu receptors and the values of the Ki67 on the positivity for metastases of the axillary lymph nodes, from primary breast cancer. MATERIAL AND METHODS: 290 surgically treated patients for breast cancer were included in the study. All cases have been analyzed by standard histological analysis including microscopic analysis on standard H&E staining. For determining the molecular receptors - HER2neu, ER, PR, p53 and Ki67, immunostaining by PT LINK immunoperoxidase has been done...
March 1, 2017: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/28592128/association-of-nuclear-foxp3-expression-with-low-ki67-index-and-better-prognosis-in-patients-with-breast-invasive-ductal-carcinoma
#20
J Li, X Zhang, L Zheng, Y Liu
Recent studies have provided clear evidence that some types of human cancer cells expressed Forkhead Box Protein 3 (FOXP3). However, the presence and role of FOXP3 in breast cancer are still contradictory up to now. In this study, we detected the expression of FOXP3 protein by immunohistochemistry in 123 cases of breast invasive ductal carcinoma. It exhibited that the subcellular localization of FOXP3 expression in breast cancer cells is heterogeneous. In nucleus, FOXP3 expression ratio was 47.97% (59/123) and the nuclear FOXP3 expression was significantly associated with lower Ki67 index (P=0...
June 8, 2017: Neoplasma
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