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Her 2 positive Breast cancer

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https://www.readbyqxmd.com/read/29333017/correlation-of-hormone-receptor-and-human-epidermal-growth-factor-receptor-2-neu-expression-in-breast-cancer-with-various-clinicopathologic-factors
#1
Cherry Bansal, Aarti Sharma, Mukta Pujani, Meenu Pujani, Kiran Lata Sharma, A N Srivastava, U S Singh
Background: A significant development in the breast carcinoma management is the correlation between the presence of hormone receptors in the tumor and response to hormonal therapy and chemotherapy. Human epidermal growth factor receptor-2/neu (Her-2/neu) overexpression also serves as a very useful parameter to predict response to herceptin. Aim of Study: The study was conducted to correlate immunohistochemical expression of markers such as estrogen receptor (ER), progesterone receptor (PR), and Her-2/neu with various clinicopathologic parameters...
October 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29321957/high-expression-of-palb2-predicts-poor-prognosis-in-patients-with-advanced-breast-cancer
#2
Jingquan Li, Mian Li, Peizhan Chen, Qian Ba
PALB2 mutation is associated with increased breast cancer risk; however, PALB2 mutation is rare in sporadic breast cancer cases and little is known about PALB2 expression in breast cancer. Here, we evaluated the prognostic effects of PALB2 with tissue microarray specimens of 117 female breast cancer patients, and determined the potential underlying mechanisms in cell models. In immunohistochemical analysis, we found increased expression of PALB2 in breast cancer tissues compared with the adjacent normal ductal epithelium (P < 0...
January 2018: FEBS Open Bio
https://www.readbyqxmd.com/read/29320969/differential-expression-of-tgf%C3%AE-isoforms-in-breast-cancer-highlights-different-roles-during-breast-cancer-progression
#3
Mahmood Y Hachim, Ibrahim Y Hachim, Meiou Dai, Suhad Ali, Jean-Jacques Lebrun
While TGFβ plays a critical role in tumor formation and progression, the role and contribution of its three different isoforms remain unclear. In this study, we aimed at elucidating the prognostic value of the TGFβ isoforms and assessed their expression levels in breast cancer patients at different stages of the disease. We found higher levels of TGFβ1 and TGFβ3 in cancer patients compared to normal tissues, with no significant changes in TGFβ2 expression. Similarly, TGFβ1 and TGFβ3, but not TGFβ2, showed higher expression levels in advanced lymph node-positive and metastatic tumors, suggesting different roles for the different isoforms in tumor progression and the metastatic process, while in the least aggressive molecular subtype (luminal A), expression of the three TGFβ isoforms significantly correlated with expression of both TGFβ receptors, such correlation only occurred between TGFβ1 and TGFβ3 and the TGFβ type II receptor (TβRII) in the highly aggressive basal-like subtype...
January 2018: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29320752/the-value-of-detection-of-s100a8-and-asah1-in-predicting-the-chemotherapy-response-for-breast-cancer-patients
#4
Yu-Hong Li, Hai-Ting Liu, Jing Xu, Ai-Yan Xing, Jie Zhang, Ya-Wen Wang, Gang Yin, Peng Gao
Chemotherapy plays an important role in the treatment of breast cancer. However, chemoresistance remains the main obstacle for effective treatment, leading to poor prognosis. This study aims to investigate the value of detection of S100A8 and ASAH1 in predicting the chemotherapy response. Miller and Payne grades were used to assess the chemotherapy response in breast cancers. The expression of S100A8 and ASAH1, as well as ER, PR, HER-2 and Ki-67 were assessed by immunohistochemical staining in 120 cases of non-special type invasive ductal carcinoma (IDC-NOS)...
January 7, 2018: Human Pathology
https://www.readbyqxmd.com/read/29291541/her-2-positive-mucinous-carcinoma-breast-cancer-case-report
#5
Irean Garcia Hernandez, Mauricio Canavati Marcos, Margarita Garza Montemayor, Dulce Lopez Sotomayor, Diana Pineda Ochoa, Gabriela Sofia Gomez Macias
INTRODUCTION: Mucinous carcinoma is a variant of invasive breast carcinomas that accounts for 2% of them and has a better prognosis in contrast to the non-specific invasive carcinoma. They regularly are positive for estrogen and progesterone receptors and, generally, they do not overexpress HER2. When HER2 is positive, the first line treatment is trastuzumab; although the resistance is 52-89% for the non-specific carcinoma, it has been described just once in mucinous carcinoma. CASE SUMMARY: A 48-year-old female presented with a lump in her right breast and after a biopsy, it was diagnosed as mucinous carcinoma in the core biopsy and surgical resection, with positive hormone receptors and HER2 positive (3+) in 100% of the tumor cells...
December 26, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29286917/protein-and-dna-evidences-of-hcmv-infection-in-primary-breast-cancer-tissues-and-metastatic-sentinel-lymph-nodes
#6
Jian Cui, Qian Wang, Hai-Bo Wang, Bin Wang, Ling Li
BACKGROUND AND OBJECTIVE: Breast cancer is the leading cause of death in women worldwide. There are evidences that human cytomegalovirus (HCMV) infection is associated with several malignant tumors. This study aims to investigate the infection of human cytomegalovirus (HCMV) in a large sample of breast cancer patients, and conduct a correlation analysis of clinical and pathological factors, to provide evidence for whether HCMV infection is associated with breast cancer development, progression and metastasis...
December 19, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29276409/expression-profile-analysis-of-long-noncoding-rna-in-er-positive-subtype-breast-cancer-using-microarray-technique-and-bioinformatics
#7
Jing Peng, Lei Zhang, Chenwei Yuan, Liheng Zhou, Shuguang Xu, Yanping Lin, Jie Zhang, Wenjin Yin, Jinsong Lu
Background: The estrogen receptor (ER)-positive subtype of breast cancer (BC) is the most common type of BC. A number of long noncoding RNAs (lncRNAs) play critical roles in cancer biology, including BC. Previous lncRNA profiling studies have focused only on triple-negative BC and HER 2-positive BC, and no studies have specifically focused on lncRNAs in ER-positive BC. In this study, we analyzed the expression profile of the lncRNAs and mRNAs found in this particular subtype of BC for the first time...
2017: Cancer Management and Research
https://www.readbyqxmd.com/read/29261141/evaluation-of-the-expression-of-amine-oxidase-proteins-in-breast-cancer
#8
Woo Young Sun, Junjeong Choi, Yoon Jin Cha, Ja Seung Koo
We aimed to evaluate the expression of amine oxidase proteins in breast cancer and their clinical implications. We performed immunohistochemical staining of amine oxidase proteins (LOX, lysyl oxidase, AOC3, amine oxidase, MAOA, monoamine oxidase A, MAOB, monoamine oxidase B). Based on their hormone receptors, such as estrogen receptor (ER) and progesterone receptor (PR), human epidermal growth factor receptor 2 (HER-2), and Ki-67 immunohistochemical staining, breast cancer was divided into four molecular subtypes: luminal A, luminal B, HER-2 type, and triple-negative breast cancer (TNBC)...
December 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29258542/radiotherapy-of-mri-detected-involved-internal-mammary-lymph-nodes-in-breast-cancer
#9
Sean Sachdev, Chelain R Goodman, Erin Neuschler, Kapila Kalakota, Daniel Cutright, Eric D Donnelly, John P Hayes, Adam E Prescott, Gianna Mirabelli, Jonathan B Strauss
BACKGROUND: The internal mammary (IM) lymph node chain, along with the axillary nodal basin, is a first-echelon breast lymphatic draining site. A growing body of evidence supports irradiation of this region in node-positive breast cancer. This study evaluated the effectiveness of radiotherapy in treating magnetic resonance imaging (MRI)-detected abnormal IM lymph nodes in newly-diagnosed non-metastatic breast cancer. METHODS: A structured query was performed on an electronic institutional database to identify women with radiographic evidence of abnormal IM node(s) on breast MRI from 2005 to 2013...
December 19, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/29237913/the-clinical-significance-of-secreted-protein-acidic-and-rich-in-cysteine-expression-in-breast-cancer-tissue-and-its-association-with-prognosis
#10
Wei Guo, Mingliang Zhang, Yong Chen, Suyang Guo
OBJECTIVE: The aim of this study was to evaluate the secreted protein acidic and rich in cysteine (SPARC) expression in breast cancer tissue and its association with patients' clinical pathology characteristics and prognosis. MATERIALS AND METHODS: Eight-eight cases with confirmed diagnosis of breast cancer who received operation from January 2010 to February 2016 were included in this study. The SPARC expression in cancer tissue was examined by immunohistochemical method...
2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/29233126/positive-prognostic-value-of-her2-her3-co-expression-and-p-mtor-in-gastric-cancer-patients
#11
Guo-Dong Cao, Ke Chen, Bo Chen, Mao-Ming Xiong
BACKGROUND: The HER2-HER3 heterodimer significantly decreases survival in breast cancer patients. However, the prognostic value of HER2-HER3 overexpression remains unknown in gastric cancer (GC). METHODS: The expression levels of HER2, HER3, Akt, p-Akt, mTOR and p-mTOR were examined in specimens from 120 GC patients by immunohistochemistry and quantitative reverse transcription-PCR. The associations of HER proteins, PI3K/Akt/mTOR pathway-related proteins, clinicopathological features of GC, and overall survival (OS) were assessed...
December 12, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29207674/genetic-polymorphisms-in-caveolin-1-associate-with-breast-cancer-risk-in-chinese-han-population
#12
Meng Wang, Tian Tian, Xiaobin Ma, Wenge Zhu, Yan Guo, Zhao Duan, Jiangbo Fan, Shuai Lin, Kang Liu, Yi Zheng, Qianwen Sheng, Zhi-Jun Dai, Huixia Peng
Caveolin-1(CAV-1) was demonstrated to be a tumor suppressor gene and be implicated in the development of breast cancer (BC). Numerous potentially functional polymorphisms in CAV-1 have been identified, but their effects on BC were not clear. This case-control study aims to evaluate the relationship between CAV-1 polymorphisms and BC risk. 560 BC patients and 583 healthy controls were enrolled in the present study, all from Chinese Han population. We detected 3 single nucleotide polymorphisms (rs3807987, rs1997623, and rs7804372) in CAV-1 using the Sequenom MassARRAY method...
October 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/29201466/breast-cancer-status-in-iran-statistical-analysis-of-3010-cases-between-1998-and-2014
#13
Mohammad Esmaeil Akbari, Soheila Sayad, Saed Sayad, Maryam Khayamzadeh, Leila Shojaee, Zeynab Shormeji, Mojtaba Amiri
Background: Breast cancer is the 5th leading cause of cancer death in Iranian women. This study analyzed 3010 women with breast cancer that had been referred to a cancer research center in Tehran between 1998 and 2014. Methods: In this retrospective study, we analyzed 3010 breast cancer cases with 32 clinical and paraclinical attributes. We checked the data quality rigorously and removed any invalid values or records. The method was data mining (problem definition, data preparation, data exploration, modeling, evaluation, and deployment)...
2017: International Journal of Breast Cancer
https://www.readbyqxmd.com/read/29199717/tumor-characteristics-and-metabolic-quantification-in-carcinoma-breast-an-institutional-experience
#14
I P Dubey, A Jain, M S Chauhan, R Kumar, S Agarwal, B Kishore, M G Vishnoi, D Paliwal, A R John, N Kumar, A Sharma, A G Pandit
BACKGROUND: In India, carcinoma breast is the most common cancer among urban women population and second most common cancer after carcinoma cervix in rural areas. One in 22 women in India develops carcinoma of the breast in their lifetime. Fluorine-18-fluoro-2-deoxy-D-glucose (18F-FDG) uptake in breast cancer usually indicates the degree of tumor metabolism and hence can predict its behavior and prognosis. On the other hand, the estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor-2 (HER-2) or neu state of breast cancer is a biomarker that provides important prognostic information in addition to predicting response to therapy...
January 2017: Indian Journal of Cancer
https://www.readbyqxmd.com/read/29191181/immunohistochemistry-defined-subtypes-of-breast-cancer-in-678-sudanese-and-eritrean-women-hospitals-based-case-series
#15
Asmerom Tesfamariam Sengal, Nada Suliman Haj-Mukhtar, Ahmed Mohammed Elhaj, Shahinaz Bedri, Eva Johanna Kantelhardt, Ahmed A Mohamedani
BACKGROUND: Breast cancer is the most common malignancy accounting for 25% of all cancers in females. In Africa, breast cancer prevalence and mortality are steadily increasing. Knowledge of hormone receptors and human epidermal growth factor receptor-2 (HER-2) expressions are vital for breast cancer management plans and decision making. There is wide regional variation in the proportion of these biomarkers, especially in African countries. Hormone receptors positivity in indigenous African and African American women is considered to be low and triple negative breast cancer is a dominant phenotype...
December 1, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29187886/prognostic-value-of-tumor-infiltrating-foxp3-regulatory-t-cells-in-patients-with-breast-cancer-a-meta-analysis
#16
Yu Zhou, Nan Shao, Nijiati Aierken, Chuanbo Xie, Runyi Ye, Xueke Qian, Ziye Hu, Jin Zhang, Ying Lin
PURPOSE: The prognostic value of tumor-infiltrating Foxp3+ regulatory T cells (Tregs) in breast cancer remains controversial. Therefore, we performed this meta-analysis to determine the impact of Foxp3+ Tregs infiltration on survival outcomes. METHODS: Relevant literature was retrieved from Pubmed, Web of science and Cocohrane until May 30, 2016. Meta-analysis was performed using hazard ratios (HRs), odds ratio (OR) and 95 % confidence intervals (CI) as effect measures...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29183167/adding-pertuzumab-to-trastuzumab-and-taxanes-in-her2-positive-breast-cancer
#17
Jack Patrick Gleeson, Niamh M Keegan, Patrick G Morris
The monoclonal antibody trastuzumab has improved the median disease free and overall survival of patients with early stage breast cancer that overexpresses the human epidermal growth factor receptor 2 (HER2). Despite this advance, some patients experience cancer relapse and novel approaches are always needed. One such advance is the monoclonal antibody pertuzumab, which prevents dimerisation between members of the HER family of transmembrane glycoprotein receptors. Areas covered: In this review, the authors analyse recent research which has focused on the development of new HER2 targeting agents for HER2-positive breast cancer, particularly pertuzumab, and its addition to trastuzumab and taxanes...
December 3, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/29178691/-analysis-of-positive-margins-risk-factors-and-long-term-recurrence-in-the-conservative-treatment-of-breast-cancer
#18
S Barant, J C Noël, P Simon
INTRODUCTION: breast conserving therapy remains the first choice in breast cancer care for the early stages. Adequate surgical margins are essential to reduce the risk of locoregional recurrence. This study aims to identify risk factors of positive margins and locoregional recurrence. MATERIALS AND METHODS: 437 patients who underwent a lumpectomy for invasive breast carcinoma or ductal carcinoma in situ have been included. Age, surgical margins, size, type, grade and number of tumor foci, the presence of ductal carcinoma in situ, lymph node status, expression of hormone receptors and HER-2 gene were assessed as risk factors for positive margins and locoregional recurrence...
2017: Revue Médicale de Bruxelles
https://www.readbyqxmd.com/read/29172286/epitope-mapping-of-human-her2-specific-mouse-monoclonal-antibodies-using-recombinant-extracellular-subdomains
#19
Reza Hosseini Ghatar, Tahereh Soltantoyeh, Tannaz Bahadori, Maryam Golara, Hadi Hassannia, Roya Khosravi Eghbal, Jalal Khoshnoodi, Mohammad Ali Judaki, Forough Golsaz-Shirazi, Mahmood Jeddi-Tehrani, Mohammad Mehdi Amiri, Fazel Shokri
Background: Human epidermal growth factor receptor 2 (HER2) is overexpressed in several human malignancies and numerous studies have indicated that it plays important roles in the development and maintenance of the malignant phenotype. Targeting of HER2 molecules with monoclonal antibodies (mAbs) is a promising therapeutic approach. However, anti-HER2 mAbs affect cancer cells differently, depending on the distinct epitopes which are the targets. Methods: Reactivity of a panel of 8 mouse anti-HER2 mAbs was investigated by ELISA and Western blotting using different subdomains of the extracellular domain (ECD) of HER2...
November 26, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29169152/knockdown-of-caveolin-1-sensitizes-human-basal-like-triple-negative-breast-cancer-cells-to-radiation
#20
Man Zou, Yanhui Li, Shu Xia, Qian Chu, Xiaoguang Xiao, Hong Qiu, Yu Chen, Zu'an Zheng, Fei Liu, Liang Zhuang, Shiying Yu
BACKGROUND/AIMS: Triple-negative breast cancer (TNBC) is a high-risk breast cancer phenotype without specific targeted therapy options and is significantly associated with increased local recurrence in patients treated with radiotherapy. CAVEOLIN-1 (CAV-1)-mediated epidermal growth factor receptor (EGFR) nuclear translocation following irradiation promotes DNA repair and thus induces radiation resistance. In this study, we aimed to determine whether knockdown of CAV-1 enhances the radiosensitivity of basal-like TNBC cell lines and to explore the possible mechanisms...
November 23, 2017: Cellular Physiology and Biochemistry
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