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Int. J. Mol. Sci. 2016, 17(8), 1316; doi:10.3390/ijms17081316

Development of a Modular Assay for Detailed Immunophenotyping of Peripheral Human Whole Blood Samples by Multicolor Flow Cytometry

Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen 91054, Germany
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Academic Editor: Terrence Piva
Received: 22 June 2016 / Revised: 18 July 2016 / Accepted: 28 July 2016 / Published: 11 August 2016
(This article belongs to the Section Molecular Pathology, Diagnostics, and Therapeutics)
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Abstract

The monitoring of immune cells gained great significance in prognosis and prediction of therapy responses. For analyzing blood samples, the multicolor flow cytometry has become the method of choice as it combines high specificity on single cell level with multiple parameters and high throughput. Here, we present a modular assay for the detailed immunophenotyping of blood (DIoB) that was optimized for an easy and direct application in whole blood samples. The DIoB assay characterizes 34 immune cell subsets that circulate the peripheral blood including all major immune cells such as T cells, B cells, natural killer (NK) cells, monocytes, dendritic cells (DCs), neutrophils, eosinophils, and basophils. In addition, it evaluates their functional state and a few non-leukocytes that also have been associated with the outcome of cancer therapy. This DIoB assay allows a longitudinal and close-meshed monitoring of a detailed immune status in patients requiring only 2.0 mL of peripheral blood and it is not restricted to peripheral blood mononuclear cells. It is currently applied for the immune monitoring of patients with glioblastoma multiforme (IMMO-GLIO-01 trial, NCT02022384), pancreatic cancer (CONKO-007 trial, NCT01827553), and head and neck cancer (DIREKHT trial, NCT02528955) and might pave the way for immune biomarker identification for prediction and prognosis of therapy outcome. View Full-Text
Keywords: immune monitoring; multicolor flow cytometry; immunophenotyping; liquid biopsy; whole blood; innate immune system; adaptive immune system immune monitoring; multicolor flow cytometry; immunophenotyping; liquid biopsy; whole blood; innate immune system; adaptive immune system
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Rühle, P.F.; Fietkau, R.; Gaipl, U.S.; Frey, B. Development of a Modular Assay for Detailed Immunophenotyping of Peripheral Human Whole Blood Samples by Multicolor Flow Cytometry. Int. J. Mol. Sci. 2016, 17, 1316.

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