How reproducible are flow cytometry data from paraffin-embedded blocks?
نویسندگان
چکیده
منابع مشابه
Comparison of DNA flow cytometry from fresh and paraffin embedded samples of non-Hodgkin's lymphoma.
Cell suspensions were prepared from fresh and paraffin embedded samples of lymph nodes from nine patients with non-Hodgkin's lymphoma. DNA flow cytometry was performed on these samples and the results from fresh tissue compared with those from paraffin embedded material. Results were compared in terms of DNA index (as a measure of aneuploidy) and S phase fraction (as an indication of proliferat...
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Methods to disintegrate old paraffin-embedded tissue blocks for the application of DNA flow cytometry open up new possibilities for retrospective studies on the correlation between tumor cell nuclear DNA pattern and prognosis of the neoplastic disease. In the present work we used such a method to study the relationship between DNA ploidy, histopathological grade, and survival for 50 patients wi...
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Cellular measurements by flow cytometric analysis constitute an important step toward understanding individual attributes within a population of cells. Assessing individual cells within a population by protein expression using fluorescently labeled antibodies and other fluorescent probes can identify cellular patterns. The technology for accurately identifying subtle changes in protein expressi...
متن کاملFlow Cytometric DNA Analysis and Histopathologic Re-Evaluation of Paraffin Embedded Samples from Hydatidiform Moles and Hydropic Abortions
Background Distinction of hydatidiform moles (HMs) from non-molar abortions and sub-classification of HMs are important for clinical practice; yet, diagnosis based solely on morphology is affected by interobserver variability. The objective of this study was to determine the role of DNA flow cytometry in distinguishing molar from non-molar pregnancies. MaterialsAndMethods This retrospective stu...
متن کاملOptimization of RNA Extraction from Formalin-Fixed Paraffin-Embedded Blocks for Targeted Next-Generation Sequencing
Purpose Breast cancer has a high prevalence in Korea. To achieve personalized therapy for breast cancer, long-term follow-up specimens are needed for next-generation sequencing (NGS) and multigene analysis. Formalin-fixed paraffin-embedded (FFPE) samples are easier to store than fresh frozen (FF) samples. The objective of this study was to optimize RNA extraction from FFPE blocks for NGS. Met...
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ژورنال
عنوان ژورنال: Cytometry
سال: 1988
ISSN: 0196-4763,1097-0320
DOI: 10.1002/cyto.990090515