Intraductal Proliferative Lesions of the Breast—Terminology and Biology Matter: Premalignant Lesions or Preinvasive Cancer?

Morphological criteria for the diagnosis of intraductal proliferative lesions of the breast have been an object of research and much controversy, and its terminology is rather confusing. Knowledge of the molecular aspects of this disease probably necessitates further research to clarify if these entities can be identified as breast cancer precursors or as a malignant preinvasive disease. These issues are of great interest not only for their biological implications, but also to the clinician who must understand the disease and direct therapies. Molecular studies have shown that epitheliosis (usual ductal hyperplasia) is not monoclonal, while malignant lesions (atypical ductal hyperplasia, flat epithelial atypia, low-grade and high-grade intraductal carcinoma) constantly show these characteristics. These malignant lesions, classified with a DIN grading system (ductal intraepithelial neoplasia), are not obligate precursors of invasive ductal carcinoma and do not represent different evolving grades in a linear model of cancerogenesis. Breast cancerogenesis probably has different pathways with different morphologic precursors

Ductal Carcinoma In Situ: What Can We Learn from Clinical Trials?

Ductal Carcinoma in situ has been diagnosed more frequently in the last few years and now accounts for approximately one-fourth of all treated breast cancers. Traditionally, this disease has been treated with total mastectomy, but conservative surgery has become increasingly used in the absence of unfavourable clinical conditions, if a negative excision margin can be achieved. It is controversial whether subgroups of patients with favourable in situ tumors could be managed by conservative surgery alone, without radiation. As the disease is diagnosed more frequently in younger patients, these issues are very relevant, and much research has focused on this topic in the last two decades. We reviewed randomized trials regarding adjuvant radiation after breast-conservative surgery and compared data with available retrospective studies

Recent advances in the surgical care of breast cancer patients

A tremendous improvement in every aspect of breast cancer management has occurred in the last two decades. Surgeons, once solely interested in the extipartion of the primary tumor, are now faced with the need to incorporate a great deal of information, and to manage increasingly complex tasks

MYC and human telomerase gene (TERC) copy number gain in early-stage non-small cell lung cancer

Objectives: We investigated the frequency of MYC and TERC increased gene copy number (GCN) in early-stage non-small cell lung cancer (NSCLC) and evaluated the correlation of these genomic imbalances with clinicopathologic parameters and outcome. Materials and Methods: Tumor tissues were obtained from 113 resected NSCLCs. MYC and TERC GCNs were tested by fluorescence in situ hybridization (FISH) according to the University of Colorado Cancer Center (UCCC) criteria and based on the receiver operating characteristic (ROC) classification. Results: When UCCC criteria were applied, 41 (36%) cases for MYC and 41 (36%) cases for TERC were considered FISH-positive. MYC and TERC concurrent FISH-positive was observed in 12 cases (11%): 2 (17%) cases with gene amplification and 10 (83%) with high polysomy. By using the ROC analysis, high MYC (mean ≥2.83 copies/cell) and TERC (mean ≥2.65 copies/cell) GCNs were observed in 60 (53.1%) cases and 58 (51.3%) cases, respectively. High TERC GCN was associated with squamous cell carcinoma (SCC) histology (P=0.001). In univariate analysis, increased MYC GCN was associated with shorter overall survival (P=0.032 [UCCC criteria] or P=0.02 [ROC classification]), whereas high TERC GCN showed no association. In multivariate analysis including stage and age, high MYC GCN remained significantly associated with worse overall survival using both the UCCC criteria (P=0.02) and the ROC classification (P=0.008). Conclusions: Our results confirm MYC as frequently amplified in early-stage NSCLC and increased MYC GCN as a strong predictor of worse survival. Increased TERC GCN does not have prognostic impact but has strong association with squamous histology

Pre-analytics, a national survey of Senonetwork Italia breast centers: Much still to do ahead

Introduction: Pre-analytics involves handling and processing of microbiopsy and surgical specimen. It is critical for the preservation of morphology and the integrity of molecular markers, which are paramount as prognostic and predictive factors in breast cancer. Although pre-analytical variables in breast cancer are codified by national and international guidelines, there is currently no data on their actual endorsement in clinical practice among Breast Units (BU).Materials and methods: An anonymous questionnaire was sent by e-mail by Senonetwork Italia, a noprofit organization representing the multidisciplinary network of BU in Italy. The questionnaire involved twenty-four questions concerning critical issues related to the average time and transport temperature of the samples, monitoring of warm and cold ischemia, average fixation time for biopsies and surgical specimens, inking of the margins, and radiography of the operating sample.Results: Forty-nine of 113 affiliated BU (43%), involved in the management of 44% of all breast cancer treated every year in Italy, answered the questionnaire. More than 90% of the BU reported a biopsy/VABB fixation time between 6 and 24 h. Only 41% of the Centers received the fresh operative sample to be sectioned immediately, 20% used the vacuum method and the sample arrived in the laboratory within 24 -72 h. Delay in sectioning the sample was reported in as many as 40% of BU, while hot and cold ischemia time was monitored in only 4.2% and 6.2% of BU, respectively.Conclusion: Critical issues on pre-analytics are reported by the majority of dedicated BU in Italy. This represents a major challenge regarding quality of care, and improvements are needed in order to obtain valid and reproducible results of prognostic and predictive factors. (C) 2020 Elsevier Ltd, BASO similar to The Association for Cancer Surgery, and the European Society of Surgical Oncology. All rights reserved

AVALIAÇÃO DA OCORRÊNCIA DE ESTRO E DESENVOLVIMENTO FOLICULAR EM FÊMEAS SUÍNAS NA LACTAÇÃO COM MANEJO DE DESMAME DE 28 DIAS

O desmame de fêmeas suínas é realizado na grande maioria aos 21 dias de lactação, contudo, uma grande discussão acerca da mudança de manejo de 21 para 28 dias, sem ocorrência da manifestação do estro durante a lactação e interferência no intervalo desmame cio (IDC) vem sendo discutida. Foram avaliadas 114 fêmeas suínas de duas granjas diferentes, quanto a manifestação de estro pelo reflexo de tolerância ao homem (RTH) e desenvolvimento folicular por ultrassonografia. Os resultados mostraram que não houve ocorrência de estro durante a lactação no período de 28 dias e nenhuma interferência no IDC em 100% das fêmeas avaliadas

Gene identification for risk of relapse in stage I lung adenocarcinoma patients. A combined methodology of gene expression profiling and computational gene network analysis

Risk assessment and treatment choice remains a challenge in early non-smallcell lung cancer (NSCLC). The aim of this study was to identify novel genes involved in the risk of early relapse (ER) compared to no relapse (NR) in resected lung adenocarcinoma (AD) patients using a combination of high throughput technology and computational analysis. We identified 18 patients (n.13 NR and n.5 ER) with stage I AD. Frozen samples of patients in ER, NR and corresponding normal lung (NL) were subjected to Microarray technology and quantitative-PCR (Q-PCR). A gene network computational analysis was performed to select predictive genes. An independent set of 79 ADs stage I samples was used to validate selected genes by Q-PCR. From microarray analysis we selected 50 genes, using the fold change ratio of ER versus NR. They were validated both in pool and individually in patient samples (ER and NR) by Q-PCR. Fourteen increased and 25 decreased genes showed a concordance between two methods. They were used to perform a computational gene network analysis that identified 4 increased (HOXA10, CLCA2, AKR1B10, FABP3) and 6 decreased (SCGB1A1, PGC, TFF1, PSCA, SPRR1B and PRSS1) genes. Moreover, in an independent dataset of ADs samples, we showed that both high FABP3 expression and low SCGB1A1 expression was associated with a worse disease-free survival (DFS). Our results indicate that it is possible to define, through gene expression and computational analysis, a characteristic gene profiling of patients with an increased risk of relapse that may become a tool for patient selection for adjuvant therapy

Nivel de percepción educación ambiental y desarrollo sostenible: perspectiva, estamentos internos, Facultad Ciencias Económicas Administrativas

El propósito de la presente investigación es determinar el nivel de percepción de la educación ambiental y desarrollo sostenible desde la perspectiva de sus estamentos internos en la Facultad de Ciencias Contables y Administrativas de la Universidad San Pedro, año 2017, la población fue la Facultad de Ciencias Económicas y Administrativas, a través de las escuelas de administración, contabilidad y negocios internacionales con un total de 1720 estudiantes matriculados en el semestre 2017-2 y en el caso de los docentes fueron 121 que laboran para las escuelas antes indicadas en este mismo periodo, la muestra fue de 356 estudiantes distribuidos en, escuela de administración con 148, escuela de contabilidad con 157 y escuela de Economía y negocios internacionales con 51. En cuanto a la plana docente fue de 71 docentes. Las muestras fueron convencionales. Hemos utilizado el tipo de investigación descriptiva, de diseño no experimental de corte transversal, en cuanto a la técnica hemos utilizado la encuesta y como instrumento el cuestionario. Entre otros resultados se determinó que el nivel de percepción de la educación ambiental y desarrollo sostenible de los estudiantes, es medio y malo al igual que los docentes, que la USP no ha iniciado la ambientalización curricular de las carreras que ofrece.Trabajo de investigació

Second-line treatment options in Non-Small Cell Lung Cancer (NSCLC): report from an International Experts Panel Meeting of the Italian Association of Thoracic Oncology

Non-small-cell lung cancer (NSCLC) patients inevitably progress to first-line therapy and further active treatments are warranted. In the last few years, new second-line therapies, beyond chemo-agents, have become available in the clinical practice. To date, several options for the second-line treatment of non-oncogene-addicted NSCLC patients ranging from chemotherapy in combination with anti- vascular endothelial growth factor receptor to immunotherapeutics are available. In oncogene-driven tumors, the better knowledge of mechanisms of acquired resistance to earlier TKIs is leading to novel active inhibitors now available/in development. The second-line algorithm treatment of NSCLC becomes very intricate and the selection of proper patients with one of the new available therapeutic options is of paramount importance to personalize and optimize the treatment. This review will discuss the second-line treatment opportunities of both addicted and not-addicted NSCLC