Characterization of Bacterial Symbionts in Deep-Sea Fauna: Protocols for Sample Conditioning, Fluorescence In Situ Hybridization, and Image Analysis

Author(s):  
Sébastien Duperron
Genomics ◽  
1993 ◽  
Vol 17 (2) ◽  
pp. 403-407 ◽  
Author(s):  
Elizabeth A. Lindsay ◽  
Stephanie Halford ◽  
Roy Wadey ◽  
Peter J. Scambler ◽  
Antonio Baldini

Author(s):  
Oliver A. Press ◽  
Roberta Guzman ◽  
Monica Cervantes ◽  
Angela Santiago ◽  
Michael F. Press

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Gedmante Radziuviene ◽  
Allan Rasmusson ◽  
Renaldas Augulis ◽  
Daiva Lesciute-Krilaviciene ◽  
Aida Laurinaviciene ◽  
...  

Human epidermal growth factor receptor 2 gene- (HER2-) targeted therapy for breast cancer relies primarily on HER2 overexpression established by immunohistochemistry (IHC) with borderline cases being further tested for amplification by fluorescence in situ hybridization (FISH). Manual interpretation of HER2 FISH is based on a limited number of cells and rather complex definitions of equivocal, polysomic, and genetically heterogeneous (GH) cases. Image analysis (IA) can extract high-capacity data and potentially improve HER2 testing in borderline cases. We investigated statistically derived indicators of HER2 heterogeneity in HER2 FISH data obtained by automated IA of 50 IHC borderline (2+) cases of invasive ductal breast carcinoma. Overall, IA significantly underestimated the conventional HER2, CEP17 counts, and HER2/CEP17 ratio; however, it collected more amplified cells in some cases below the lower limit of GH definition by manual procedure. Indicators for amplification, polysomy, and bimodality were extracted by factor analysis and allowed clustering of the tumors into amplified, nonamplified, and equivocal/polysomy categories. The bimodality indicator provided independent cell diversity characteristics for all clusters. Tumors classified as bimodal only partially coincided with the conventional GH heterogeneity category. We conclude that automated high-capacity nonselective tumor cell assay can generate evidence-based HER2 intratumor heterogeneity indicators to refine GH definitions.


2008 ◽  
Vol 182 (2) ◽  
pp. 116-121 ◽  
Author(s):  
Zsuzsa Rákosy ◽  
Laura Vízkeleti ◽  
Szilvia Ecsedi ◽  
Ágnes Bégány ◽  
Gabriella Emri ◽  
...  

1993 ◽  
Vol 47 (8) ◽  
pp. 1153-1156 ◽  
Author(s):  
Alessandra M. V. Duncan ◽  
Athen Macdonald ◽  
Carolyn J. Brown ◽  
Daynna Wolff ◽  
Huntington F. Willard ◽  
...  

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