Volume 42, Issue 5 pp. 594-603
ORIGINAL ARTICLE

P-glycoprotein and multidrug resistance-associated protein-1 expression in acute myeloid leukemia: Biological and prognosis implications

Lenilton Silva da Silveira Júnior

Lenilton Silva da Silveira Júnior

Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (DACT/UFRN), Natal, Brazil

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Victor de Lima Soares

Victor de Lima Soares

Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (DACT/UFRN), Natal, Brazil

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Alessandra Suelen Jardim da Silva

Alessandra Suelen Jardim da Silva

Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (DACT/UFRN), Natal, Brazil

Faculdade de Ciências da Saúde do Trairi/UFRN, Santa Cruz, Brazil

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Erica Aires Gil

Erica Aires Gil

Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (DACT/UFRN), Natal, Brazil

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Maria das Graças Pereira de Araújo

Maria das Graças Pereira de Araújo

Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (DACT/UFRN), Natal, Brazil

Laboratório de Citometria de Fluxo, Hemocentro Dalton Cunha, Natal, Brazil

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Ciro Alexandre Merces Gonçalves

Ciro Alexandre Merces Gonçalves

Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (DACT/UFRN), Natal, Brazil

Laboratório de Citometria de Fluxo, Hemocentro Dalton Cunha, Natal, Brazil

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Aldair de Souza Paiva

Aldair de Souza Paiva

Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (DACT/UFRN), Natal, Brazil

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Taissa Maria Moura de Oliveira

Taissa Maria Moura de Oliveira

Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (DACT/UFRN), Natal, Brazil

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Gustavo Henrique de Medeiros Oliveira

Gustavo Henrique de Medeiros Oliveira

Laboratório de Citometria de Fluxo, Hemocentro Dalton Cunha, Natal, Brazil

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Dany Geraldo Kramer Cavacanti e Silva

Dany Geraldo Kramer Cavacanti e Silva

Faculdade de Ciências da Saúde do Trairi/UFRN, Santa Cruz, Brazil

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Telma Maria de Araújo Moura Lemos

Telma Maria de Araújo Moura Lemos

Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (DACT/UFRN), Natal, Brazil

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Ivanise Marina Moretti Rebecchi

Ivanise Marina Moretti Rebecchi

Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (DACT/UFRN), Natal, Brazil

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Valeria Soraya de Farias Sales

Valeria Soraya de Farias Sales

Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (DACT/UFRN), Natal, Brazil

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André Ducati Luchessi

André Ducati Luchessi

Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (DACT/UFRN), Natal, Brazil

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Geraldo Barroso Cavalcanti Júnior

Corresponding Author

Geraldo Barroso Cavalcanti Júnior

Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (DACT/UFRN), Natal, Brazil

Laboratório de Citometria de Fluxo, Hemocentro Dalton Cunha, Natal, Brazil

Correspondence

Geraldo Barroso Cavalcanti Júnior, Laboratório de Imunologia Clínica, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, 1th floor, Avenida Gustavo Cordeiro de Farias S/N, CEP: 59010-180, Natal, RN, Brazil.

Email: [email protected]

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First published: 26 May 2020
Citations: 17

Lenilton Silva da Silveira Júnior and Victor de Lima Soares contributed equally to this article.

Abstract

Background

Despite the advances in the cure rate for acute myeloid leukemia (AML), a considerable number of patients die from the disease due to the occurrence of multidrug resistance (MDR). Overexpression of the transporter proteins, such as P-glycoprotein (Pgp) and multidrug resistance-associated protein (MRP), confers resistance to the treatment of these leukemias.

Methods

To analyze the expression of the Pgp and MRP1 in patients with AML and determine their correlation between expression and demographic, clinical, and laboratorial variables, bone marrow and peripheral blood samples from 346 patients with a diagnosis of AML were assessed for the expression of Pgp and MRP1 by flow cytometry.

Results

The expression of Pgp and MRP1 was found in 111 (32.1%) and 133 (38.4%) patients, respectively, with greater prevalence in older patients and lower in children, while also observing a high incidence in patients with refractory, recurrence, and secondary disease in comparison with the cases of de novo AML. Regarding the laboratory findings, we observed an association between the expression of Pgp and MRP1 and CD34, CD7, and also M7, M5a, and M2-AML of French-American-British classification.

Conclusions

The results showed that the detection of MDR phenotype by flow cytometry can be a molecular marker for prognosis of patients with AML.

CONFLICTS OF INTEREST

The authors participating in this manuscript declare that there is no conflict of interest of any kind.

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