Category Archives: THERAPEUTICS

Virtual peer review of primate studies in Asia

In a collaboration with EPL, the leading GLP pathology peer review organization, Flagship Biosciences presented continued work at the Society of Toxicology Pathology meeting in Denver, Colorado in June 2011 on virtual peer review. The Virtual Imaging in Peer Review or VIPER was a consortium of multiple pharma companies started in 2010 to evaluate international [...]

Nuclear cytoplasm localization

We do a lot of projects involving comparing a protein’s expression in the nucleus versus cytoplasm. Many proteins show activation upon translocation from cytoplasm to nucleus. Below are some example steps that we perform to obtain a measurement of the ratio on a cell-basis. There are a wide number of variations to these approaches. The [...]

White versus red pulp with fluorescence scanning

In this example we use multimodal scanning of a brightfield stained slide in both brightfield and fluorescence to better delineate red from white pulp in spleen. The two images are overlaid with image registration, showing fluorescence scanning is better than brightfield for a more clear differentiation of red/white pulp.  This aids in running more accurate [...]

SBF presents “Beneath the Surface”

New monthly webinar series covering tissue engineering, biomaterials, biocompatibility, and other topics related to the tissue-material interface.

Scratching the surface of quantitative dermatopathology

Quantitative dermatopathology is just scratching the surface with digital pathology

Phosphomarkers — NF-kappaB

Phosphomarkers do not generally represent any additional difficulties in image analysis, although the sample handling and collection is not trivial, and one must take care with interpretation, particularly when working in realworld clinical specimen settings. Below is a phospho-NF-kappa B p65 (Ser 276) antibody from EnVision (Rabbit) on formalin fixed paraffin embedded human colon carcinoma. [...]

Kappa/lambda in lymphoma

Anti-kappa and anti-lambda detect surface light chain immunoglobulins on normal and neoplastic B-cells in human lymphoid tissue.  In normal lymphoid tissue the kappa and lambda cell ratio is approximately 2:1, but values in excess of that ratio indicate monoclonality caused by either a lymphoproliferative disorder or neoplasia such as lymphoma. The double stain antibody provided by [...]

Fluorescence scanning of tunica intima

Whole slide fluorescence scanning of arteries to quantitate the tunica intima.

Bridge scanning of implanted materials

We have a number of multi-modal whole slide scanning techniques that we call bridge scanning, where a number of fluorescent and brightfield scans are overlaid, either from a single slide or from multiple consecutive sections. In this example, we are using FACTS with other consecutive sections to identify biocompatible responses to implanted biopolymers. We can [...]

Pan melanoma & Ki-67 Multiplex IHC

Quantification of proliferating nuclei with multiplexed IHC in between melanoma and melanocytic nevi.