Transferred-tissue Microarray for Fluorescence In Situ Hybridization Test for Human Epidermal Growth Factor Receptor 2 in Breast Cancer
Conclusions: This novel technique is a reliable option for performing multiple HER2 FISH tests simultaneously in clinical and research-oriented settings with less tissue damage compared with conventional tissue microarray techniques.
Publication date: Available online 24 May 2020Source: Journal of Vascular and Interventional RadiologyAuthor(s): Kasey Halsey, Jing Wu, Chang Su, Ben Hsieh, Thomas Yi, Scott A. Collins, Benjamin Kimia, Paul J. Zhang, Terrance Healey, Zishu Zhang, Harrison X. Bai
Publication date: Available online 24 May 2020Source: European Journal of RadiologyAuthor(s): Lisa Loi, Ferdinand Zimmermann, Steffen Goerke, Andreas Korzowski, Jan-Eric Meissner, Katerina Deike-Hofmann, Anne Stieber, Peter Bachert, Mark Edward Ladd, Heinz-Peter Schlemmer, Sebastian Bickelhaupt, Sarah Schott, Daniel Paech
ConclusionThe proposed multiparametric MRI-based SLICs+MTh method performs noninvasive assessment of NACT response in osteosarcoma that may improve cancer treatment monitoring, planning, and overall prognosis.Key Points• The simple linear iterative clustering supervoxels and Otsu multithresholding-based technique (SLICs+MTh) successfully estimates the proportion of necrosis, viable tumor, and edema in osteosarcoma in the course of chemotherapy.• The proposed technique is noninvasive and uses multiparametric MRI to measure necrosis as an indication of anticancer treatment response.• SLICs+MTh-based necrosis w...
Publication date: Available online 25 May 2020Source: Personality and Individual DifferencesAuthor(s): Dean Fido, Nadja Heym, Claire A.J. Bloxsom, Kirsty A. Hunter, Michael Gregson, Alexander Sumich
Publication date: Available online 24 May 2020Source: Pathology - Research and PracticeAuthor(s): Tania Franceschini, Elisa Capizzi, Francesco Massari, Riccardo Schiavina, Michelangelo Fiorentino, Francesca Giunchi
AbstractBreast cancer is a highly heterogeneous disease. The efficacy of tailored therapeutic strategies relies on the precise detection of diagnostic biomarkers by immunohistochemistry (IHC). Therefore, considering the increasing incidence of breast cancer cases, a concomitantly time-efficient and accurate diagnosis is clinically highly relevant. Microfluidics is a promising innovative technology in the field of tissue diagnostic, enabling for rapid, reliable, and automated immunostaining. We previously reported the microfluidic-based HER2 (human epidermal growth factor receptor 2) detection in breast carcinomas to greatl...
ConclusionsAs the largest series to date, our study raises the question of whether the RS assay is necessary for breast cancers with favorable histology. Reflex testing of node-negative, ER+/HER2 − breast cancers may be deferred for these special histologic subtypes, emphasizing the need for multidisciplinary discussions between breast pathologists and other members of the breast cancer team.
Conclusions: The commonly used reflex strategy based on IHC results may deny potentially beneficial targeted therapy for a small cohort of patients, which should be considered as testing guidelines are formulated and the cost-benefit analyses of various testing algorithms are assessed. PMID: 28340220 [PubMed - as supplied by publisher]
Background:As compared to invasive breast cancer (IBC), HER2 is much more frequently overexpressed in ductal carcinoma in situ (DCIS). Unlike IBC, the prognostic significance of HER2 overexpression remains to be established in DCIS and large studies to investigate its predictive role are lacking. We investigated the prognostic and predictive relevance of HER2 protein and ERBB2 mRNA expression in DCIS using material from UK/ANZ DCIS trial.Methods:Formalin-fixed paraffin embedded tissues (FFPETs) were collected from patients enrolled in the UK/ANZ DCIS trial, a randomised 2X2 factorial design trial investigating role of tamo...
CONCLUSIONS: Our series demonstrated a high concordance rate (97%) for HER2 at excision in grade 3 breast tumors with a negative core biopsy result. These findings suggest that reflex repeat HER2 testing of all these cases, which has significant cost and workload implications, may not be justified. Features that may indicate HER2 heterogeneity, such as equivocal IHC on CNB specimens or tumor upgrade at excision, may help refine selection of cases for repeat testing. PMID: 26712873 [PubMed - in process]