Technical advances in flow cytometry-based diagnosis and monitoring of paroxysmal nocturnal hemoglobinuria

Author:

Correia Rodolfo Patussi1,Bento Laiz Cameirão1,Bortolucci Ana Carolina Apelle1,Alexandre Anderson Marega1,Vaz Andressa da Costa1,Schimidell Daniela1,Pedro Eduardo de Carvalho1,Perin Fabricio Simões1,Nozawa Sonia Tsukasa1,Mendes Cláudio Ernesto Albers1,Barroso Rodrigo de Souza1,Bacal Nydia Strachman2

Affiliation:

1. Hospital Israelita Albert Einstein, Brazil

2. Hospital Israelita Albert Einstein, Brazil; Centro de Hematologia de São Paulo, Brazil

Abstract

ABSTRACT Objective: To discuss the implementation of technical advances in laboratory diagnosis and monitoring of paroxysmal nocturnal hemoglobinuria for validation of high-sensitivity flow cytometry protocols. Methods: A retrospective study based on analysis of laboratory data from 745 patient samples submitted to flow cytometry for diagnosis and/or monitoring of paroxysmal nocturnal hemoglobinuria. Results: Implementation of technical advances reduced test costs and improved flow cytometry resolution for paroxysmal nocturnal hemoglobinuria clone detection. Conclusion: High-sensitivity flow cytometry allowed more sensitive determination of paroxysmal nocturnal hemoglobinuria clone type and size, particularly in samples with small clones.

Publisher

FapUNIFESP (SciELO)

Subject

General Medicine

Reference22 articles.

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2. Paroxysmal nocturnal haemoglobinuria (PNH) is caused by somatic mutations in the PIG-A gene;Bessler M;EMBO J,1994

3. Clinical Cytometry Society. Guidelines for the diagnosis and monitoring of paroxysmal nocturnal hemoglobinuria and related disorders by flow cytometry;Borowitz MJ;Cytometry B Clin Cytom,2010

4. Citometria de fluxo aplicações no laboratório clínico e de pesquisa;Malvezzi M,2013

5. Paroxysmal nocturnal hemoglobinuria due to hereditary nucleotide deletion in the HRF20 (CD59) gene;Motoyama N;Eur J Immunol,1992

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