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https://www.readbyqxmd.com/read/30546143/a-national-quality-assurance-program-for-breast-immunohistochemistry-an-italian-perspective
#1
E Guadagno, G De Rosa, O Nappi
A national project for the quality assessment of breast immunohistochemistry, involving 155 pathology laboratories distributed all over the Italian territory ( 19 regions), was carried out. The Project lasted one year from December 2014 to December 2015 and it was strongly supported by the Italian Society of Anatomic Pathology (SIAPEC/IAP). Proficiency tests were carried out by the Nordic Immunohistochemical Quality Control (NordiQC) organization. The main aim of the project was to investigate on the general performance of immunohistochemistry (ER, PR and HER2) in the field of breast cancer in the Italian territory, in order to emphasize any difference and give practical support to laboratories in daily practice...
September 2018: Pathologica
https://www.readbyqxmd.com/read/30544398/preoperative-elevated-neutrophil-to-lymphocyte-ratio-nlr-and-derived-nlr-are-associated-with-poor-prognosis-in-patients-with-breast-cancer-a-meta-analysis
#2
Junwu Duan, Linlin Pan, Ming Yang
BACKGROUND: Preoperative neutrophil-lymphocyte ratio (NLR) and derived NLR (dNLR) have been suggested to be correlated with the prognosis of patients with breast cancer (BC). However, the results still remain controversial. Therefore, this study was to further evaluate the prognostic potential of preoperative NLR and dNLR for BC patients using a meta-analysis. METHODS: Relevant articles were sought in PubMed and Cochrane Library databases up to September 2018. The associations between preoperative NLR/dNLR and overall survival (OS), disease-free survival (DFS) and recurrence-free survival (RFS) were assessed by the STATA software with the results presented as pooled hazard ratio (HR) with 95% confidence interval (CI)...
December 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/30544377/cldn10-single-nucleotide-polymorphism-rs1325774-alters-the-risk-of-breast-cancer-in-south-chinese-women
#3
Jinling Liao, Jie Li, Hong Cheng, Yang Chen, Zengnan Mo
Breast cancer is one of the most widespread malignancies in females, and the incidence rate has been increasing in recent years in the world. Genetic factors play an important role in the occurrence of breast cancer. Our study aimed to investigate the relationship between single nucleotide polymorphisms (SNPs) of claudin 10 (CLDN10) (rs1325774, rs7333503, rs3751334) and breast cancer and the clinical characteristics of patients.A total of 104 patients with breast cancer and 118 healthy controls were recruited in our study between 2013 and 2015...
December 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/30543491/prominent-dose-rate-effect-and-its-age-dependence-of-rat-mammary-carcinogenesis-induced-by-continuous-gamma-ray-exposure
#4
Tatsuhiko Imaoka, Mayumi Nishimura, Kazuhiro Daino, Ayaka Hosoki, Masaru Takabatake, Yukiko Nishimura, Toshiaki Kokubo, Takamitsu Morioka, Kazutaka Doi, Yoshiya Shimada, Shizuko Kakinuma
Although the risk of breast cancer after high-dose-rate irradiation has been firmly established, however, the risk incurred for low-dose-rate irradiation is not well understood. Here we provide experimental evidence for dose rate and age dependencies induced by continuous γ-ray irradiation on mammary carcinogenesis. Female rats received continuous whole-body irradiation at one of the following time points: at 7 weeks of age (denoted adults) at a dose rate of 3-60 mGy/h (4 Gy total); or at either 3 weeks (denoted juveniles) or 7 weeks of age at a dose rate of 6 mGy/h (1-8 Gy total)...
December 13, 2018: Radiation Research
https://www.readbyqxmd.com/read/30542840/oncotype-dx-%C3%A2-recurrence-score-as-a-predictor-of-response-to-neoadjuvant-chemotherapy
#5
Alison M Pease, Luis A Riba, Ryan A Gruner, Nadine M Tung, Ted A James
BACKGROUND: The Oncotype DX® assay has been validated in predicting response to adjuvant chemotherapy in breast cancer. Its role in neoadjuvant chemotherapy (NCT) has not been established. METHODS: The National Cancer Database was used to identify all patients with T1-T3, ER-positive, HER2-negative primary invasive breast cancer diagnosed from 2010 to 2015 who had Oncotype DX recurrence scores (RS) and received NCT. RS were classified as low, intermediate, or high...
December 12, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/30541574/stemness-marker-aldh1a1-promotes-tumor-angiogenesis-via-retinoic-acid-hif-1%C3%AE-vegf-signalling-in-mcf-7-breast-cancer-cells
#6
Valerio Ciccone, Erika Terzuoli, Sandra Donnini, Antonio Giachetti, Lucia Morbidelli, Marina Ziche
BACKGROUND: Aldehyde dehydrogenase 1A1 (ALDH1A1), a member of aldehyde dehydrogenase family, is a marker of stemness in breast cancer. During tumor progression cancer stem cells (CSCs) have been reported to secrete angiogenic factors to orchestrate the formation of pathological angiogenesis. This vasculature can represent the source of self-renewal of CSCs and the route for further tumor spreading. The aim of the present study has been to assess whether ALDH1A1 controls the output of angiogenic factors in breast cancer cells and regulates tumor angiogenesis in a panel of in vitro and in vivo models...
December 12, 2018: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/30541216/-analyses-of-the-expression-of-fbi-1-in-breast-cancer-pre-and-pro-neoadjuvant-chemotherapy
#7
A Y Mao, M J Chen, W Jiang, L Wang, Q H Qin, Q X Tan, W P Yang, C Y Wei
Objective: To investigate the expression of factor that binds to inducer of short transcripts-1 of HIV (FBI-1)in breast cancer pre- and pro-neoadjuvant chemotherapy and explore the relationship between FBI-1 expression and treatment efficacy. Methods: We collected 50 patients with breast cancer who received neoadjuvant chemotherapy before operation in the Affiliated Tumor Hospital of Guangxi Medical University from January, 2010 to December, 2014. The expression of FBI-1 in breast cancer tissues pre- and pro-neoadjuvant chemotherapy was detected by immunohistochemical staining...
December 11, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/30541035/tnm-classification-of-malignant-tumors-breast-cancer-study-group
#8
Masataka Sawaki, Tadahiko Shien, Hiroji Iwata
The eighth editions of the primary tumor, lymph node and metastasis classifications for breast cancer issued by the American Joint Commission of Cancer and the Union for International Cancer Control were revised in 2017. The major change made by the American Joint Commission of Cancer is to incorporate biological factors such as estrogen and progesterone receptor, human epidermal growth factor receptor 2, histological grade and multigene prognostic assays, into the staging system. Tumor biomarkers and low recurrence scores confirmed by multigene prognostic assays change the staging...
December 12, 2018: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/30540926/phosphatidyl-inositol-3-kinase-pi3k-mtor-inhibitor-pki-402-inhibits-breast-cancer-induced-osteolysis
#9
Guixin Yuan, Zhen Lian, Qian Liu, Xixi Lin, Dantao Xie, Fangming Song, Xinjia Wang, Siyuan Shao, Bo Zhou, Chen Li, Muyan Li, Guanfeng Yao
Bone metastasis causes bone pain and pathological bone fracture in breast cancer patients with a serious complication. Previous studies have demonstrated that a novel phosphatidyl inositol 3-kinase (PI3K)-mTOR inhibitor PKI-402 suppressed the growth of breast cancer cells. However, the role of PKI-402 involved in osteolysis induced by breast cancer remains unclear. In this study, we showed that treatment of PKI-402 led to significant decreases in RANKL-induced osteoclastogenesis and osteoclast-specific gene expression in mouse bone marrow-derived macrophages and reduced proliferation, migration and invasion of MDA-MB-231 breast cancer cells by blocking the PI3K-AKT-mTOR signaling pathway...
December 9, 2018: Cancer Letters
https://www.readbyqxmd.com/read/30540922/conformational-stability-and-dynamics-of-the-cancer-associated-isoform-%C3%AE-133p53%C3%AE-are-modulated-by-p53-peptides-and-p53-specific-dna
#10
Jiangtao Lei, Ruxi Qi, Yegen Tang, Wenning Wang, Guanghong Wei, Ruth Nussinov, Buyong Ma
p53 is a tumor suppressor protein that maintains genome stability, but its Δ133p53β and Δ160p53β isoforms promote breast cancer cell invasion. The sequence truncations in the p53 core domain raise key questions related to their physicochemical properties, including structural stabilities, interaction mechanisms, and DNA-binding abilities. Herein, we investigated the conformational dynamics of Δ133p53β and Δ160p53β with and without binding to p53-specific DNA by using molecular dynamics simulations. We observed that the core domains of the 2 truncated isoforms are much less stable than wild-type (wt) p53β, and the increased solvent exposure of their aggregation-triggering segment indicates their higher aggregation propensities than wt p53...
December 12, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/30539453/an-introduction-to-the-performance-of-immunohistochemistry
#11
Shino Magaki, Seyed A Hojat, Bowen Wei, Alexandra So, William H Yong
Immunohistochemistry (IHC) is a powerful technique that exploits the specific binding between an antibody and antigen to detect and localize specific antigens in cells and tissue, most commonly detected and examined with the light microscope. A standard tool in many fields in the research setting, IHC has become an essential ancillary technique in clinical diagnostics in anatomic pathology (Lin F, Chen Z. Arch Pathol Lab Med 138:1564-1577, 2014) with the advent of antigen retrieval methods allowing it to be performed conveniently on formalin fixed paraffin embedded (FFPE) tissue (Taylor CR, Shi S-R, Barr NJ...
2019: Methods in Molecular Biology
https://www.readbyqxmd.com/read/30539380/significant-inter-and-intra-laboratory-variation-in-grading-of-ductal-carcinoma-in-situ-of-the-breast-a-nationwide-study-of-4901-patients-in-the-netherlands
#12
Carmen van Dooijeweert, Paul J van Diest, Stefan M Willems, Chantal C H J Kuijpers, Lucy I H Overbeek, Ivette A G Deckers
PURPOSE: A considerable part of ductal carcinoma in situ (DCIS) lesions may never progress into invasive breast cancer. However, standard treatment consists of surgical excision. Trials aim to identify a subgroup of low-risk DCIS patients that can safely forgo surgical treatment based on histologic grade, which highlights the importance of accurate grading. Using real-life nationwide data, we aimed to create insight and awareness in grading variation of DCIS in daily clinical practice...
December 11, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/30539373/invasive-breast-cancers-in-adolescent-and-young-adult-women-show-more-aggressive-immunohistochemical-and-clinical-features-than-those-in-women-aged-40-44-years
#13
Ai Hironaka-Mitsuhashi, Hitoshi Tsuda, Masayuki Yoshida, Chikako Shimizu, Sota Asaga, Takashi Hojo, Kenji Tamura, Takayuki Kinoshita, Toshikazu Ushijima, Nobuyoshi Hiraoka, Yasuhiro Fujiwara
BACKGROUND: Limited knowledge exists concerning the clinicopathological features of breast cancers (BCs) occurring in adolescent and young adult (AYA) women. We evaluated tumor characteristics in AYA women in comparison with those in middle-aged premenopausal women. METHODS: From consecutive AYA patients (< 35-year-old) with invasive BC in a single institute, 82 patients first treated with surgery were examined. As the control group, 82 tumors from middle-aged premenopausal patients (40-44 years) were selected by matching pathological T and N factors...
December 11, 2018: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/30538792/plant-natural-modulators-in-breast-cancer-prevention-status-quo-and-future-perspectives-reinforced-by-predictive-preventive-and-personalized-medical-approach
#14
REVIEW
Sona Uramova, Peter Kubatka, Zuzana Dankova, Andrea Kapinova, Barbora Zolakova, Marek Samec, Pavol Zubor, Anthony Zulli, Vanda Valentova, Taeg Kyu Kwon, Peter Solar, Martin Kello, Karol Kajo, Dietrich Busselberg, Martin Pec, Jan Danko
In contrast to the genetic component in mammary carcinogenesis, epigenetic alterations are particularly important for the development of sporadic breast cancer (BC) comprising over 90% of all BC cases worldwide. Most of the DNA methylation processes are physiological and essential for human cellular and tissue homeostasis, playing an important role in a number of key mechanisms. However, if dysregulated, DNA methylation contributes to pathological processes such as cancer development and progression. A global hypomethylation of oncogenes and hypermethylation of tumor-suppressor genes are characteristic of most cancer types...
December 2018: EPMA Journal
https://www.readbyqxmd.com/read/30538544/incidence-and-prognostic-factors-of-patients-with-synchronous-liver-metastases-upon-initial-diagnosis-of-breast-cancer-a-population-based-study
#15
Hai-Yun Zhao, Yue Gong, Fu-Gui Ye, Hong Ling, Xin Hu
Background: The purpose of this study was to analyze the incidence and prognostic factors of patients with breast cancer liver metastases (BCLM) at initial diagnosis. Methods: We utilized the Surveillance, Epidemiology, and End Results database to extract data on patients with primary invasive breast cancer from 2010 to 2014. Multivariate logistic regression was conducted to determine factors associated with the presence of liver metastases upon initial diagnosis of breast cancer...
2018: Cancer Management and Research
https://www.readbyqxmd.com/read/30538406/multiple-gastrointestinal-cancers-in-a-single-patient-a-rare-clinical-entity
#16
Manish Sahni, Ashish Goel, Pankaj Pande, Kapil Kumar
Multiple gastrointestinal cancers in a single patient is a rare entity. In our study, we are showing the clinical presentation and management of these patients. A fifty-nine-year-old asthenic male (already treated case of metachronous colorectal cancer in 2008 and 2011) presented with complaints of generalized weakness and fatigue. Strong family history was present with two of his first-degree relatives having diagnosed with gastrointestinal cancer at the age < 50 years with one of them having stomach carcinoma and another with GEJ tumors...
December 2018: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/30538380/utility-of-preoperative-staging-of-ipsilateral-axilla-with-ultrasound-and-guided-needle-aspiration-in-early-stage-breast-cancer-current-indian-scenario
#17
Balasubramanian Venkitaraman, Kajamohideen Suhailudeen, Thanaraj
Clinical assessment of the axilla, especially in early-stage breast cancer, can have a high degree of inaccuracy with over-staging curtailing the use of sentinel node biopsy. Imaging of axilla, using ultrasound ± guided fine needle aspiration cytology (FNAC) can help in better staging. In this study, we aim to compare physical examination and ultrasound of axilla and FNAC and assess their accuracy in preoperative staging of axilla. This was a prospective observational study. Patients with biopsy-proven invasive early-stage breast carcinoma, consenting to be part of the study, underwent ultrasound (US) of ipsilateral axilla with guided FNAC, when indicated and underwent surgery which included complete axillary dissection...
December 2018: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/30536320/lncrna-snhg7-promotes-development-of-breast-cancer-by-regulating-microrna-186
#18
X Luo, Y Song, L Tang, D-H Sun, D-G Ji
OBJECTIVE: To elucidate the biological functions of long non-coding RNA (lncRNA) SNHG7 in breast cancer (BC), and its underlying mechanism in the occurrence and progression of BC. PATIENTS AND METHODS: The expression of SNHG7 in 72 pairs of BC tissues and paracancerous tissues was detected by quantitative Real-time polymerase chain reaction (qRT-PCR). Correlation between SNHG7 expressions with pathological indicators of BC patients was analyzed. Similarly, SNHG7 expression in BC cell lines was determined by qRT-PCR as well...
November 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/30535958/targeting-neratinib-induced-diarrhea-with-budesonide-and-colesevelam-in-a-rat-model
#19
Kate R Secombe, Imogen A Ball, Joseph Shirren, Anthony D Wignall, John Finnie, Dorothy Keefe, Francesca Avogadri-Connors, Elizabeth Olek, David Martin, Susan Moran, Joanne M Bowen
PURPOSE: Neratinib is an irreversible pan-ErbB tyrosine kinase inhibitor used for the extended adjuvant treatment of early-stage HER2-positive breast cancer. Its use is associated with the development of severe diarrhea in up to 40% of patients in the absence of proactive management. We previously developed a rat model of neratinib-induced diarrhea and found inflammation and anatomical disruption in the ileum and colon. Here we tested whether anti-diarrheal interventions, budesonide and colesevelam, can reduce neratinib-induced diarrhea and intestinal pathology...
December 10, 2018: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/30535933/krt19-and-ceacam5-mrna-marked-circulated-tumor-cells-indicate-unfavorable-prognosis-of-breast-cancer-patients
#20
Xi-Mei Wang, Zhen Zhang, Li-Hui Pan, Xu-Chen Cao, Chunhua Xiao
AIM: To investigate the clinical and prognostic significance of circulated tumor cells (CTC) marked by cytokeratin 19 coding gene KRT19 mRNA and carcinoembryonic antigen coding gene CEACAM5 mRNA in preoperative peripheral blood of breast cancer patients and provide molecular markers for breast cancer metastasis risk. METHODS: The mRNA levels of KRT19 and CEACAM5 in preoperative peripheral blood of breast cancer patients without (n = 603) and with (n = 76) distant metastases at the time of initial diagnosis were detected by reverse transcription-quantitative polymerase chain reaction (RT-qPCR)...
December 8, 2018: Breast Cancer Research and Treatment
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