Expressão do gene MRP1 em leucemias agudas
Palavras-chave:
Resistência a múltiplas drogas, Quimioterapia, Reação em cadeia da polimerase via transcriptase reversa, Leucemia mielóide, Leucemia linfocítica agudaResumo
CONTEXTO E OBJETIVO: A superexpressão do gene de resistência a múltiplas drogas associado à proteína 1 (MRP1) tem sido ligada à resistência à quimioterapia in vitro, porém pouco é conhecido sobre seu impacto clínico nos pacientes com leucemia aguda. Nosso objetivo foi investigar a possível associação entre a expressão do gene MRP1 e os desfechos clínicos em pacientes iranianos com leucemia. DESENHO E LOCAL: Este foi um estudo analítico transversal em pacientes encaminhados ao Centro de Pesquisa em Hematologia, Oncologia e Células Tronco do Hospital Público de Sharyatee, com diagnóstico de leucemia mielóide aguda (LMA) ou leucemia linfoblástica aguda (LLA). Todo trabalho molecular foi realizado no NIGEB (instituição pública). MÉTODOS: Para correlação de marcadores prognósticos e desfechos clínicos da leucemia aguda, a expressão do MRP1 foi avaliada em 35 casos de LMA e 17 de LLA, usando a reação da cadeia de polimerase quantitativa em tempo real, e comparando este dado ao tipo de resposta à quimioterapia. RESULTADOS: A média da expressão em pacientes com LMA em remissão completa (0,032 ± 0,031) foi significativamente menor que aquela dos casos recidivantes (0,422 ± 0,297). Por outro lado, não foram observadas diferenças significativas nos níveis de mRNA para MRP1 entre os casos de LLA com remissão completa e os casos recidivantes. Houve uma diferença na expressão de MRP1 entre pacientes com prognóstico citogenético não-favorável e favorável (0,670 ± 0,074 e 0,028 ± 0,013, respectivamente). A expressão de MRP1 em M5 foi significativamente maior (valor de p = 0,001) do que em outros subtipos. CONCLUSÕES: Os achados sugerem que a alta expressão de MRP1 se associou com o pior desfecho clínico, estando correlacionada com o subtipo M5 e os subgrupos citogenéticos menos favoráveis para os pacientes com LMA, mas não para pacientes com LLA.
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Referências
Sonneveld P. Multidrug resistance in haematological malignan- cies. J Intern Med. 2000;247(5):521-34.
Büchner T. Treatment of adult acute leukemia. Curr Opin Oncol. 1997;9(1):18-25.
Marie JP, Zhou DC, Gurbuxani S, Legrand O, Zittoun R. MDR1/P-glycoprotein in haematological neoplasms. Eur J Cancer. 1996;32A(6):1034-8.
Cole SP, Bhardwaj G, Gerlach JH, et al. Overexpression of a transporter gene in a multidrug-resistant human lung cancer cell line. Science. 1992;258(5088):1650-4.
Grant CE, Valdimarsson G, Hipfner DR, Almquist KC, Cole SP, Deeley RG. Overexpression of multidrug resistance-associated protein (MRP) increases resistance to natural product drugs. Cancer Res. 1994;54(2):357-61.
Legrand O, Perrot JY, Simonin G, Baudard M, Marie JP. JC-1: a very sensitive fluorescent probe to test Pgp activity in adult acute myeloid leukemia. Blood. 2001;97(2):502-8.
Solary E, Drenou B, Campos L, et al. Quinine as a multi- drug resistance inhibitor: a phase 3 multicentric randomized study in adult de novo acute myelogenous leukemia. Blood. 2003;102(4):1202-10.
Broxterman HJ, Sonneveld P, Pieters R, et al. Do P-glycoprotein and major vault protein (MVP/LRP) expression correlate with in vitro daunorubicin resistance in acute myeloid leukemia? Leukemia. 1999;13(2):258-65.
Wuchter C, Leonid K, Ruppert V, et al. Clinical significance of P-glycoprotein expression and function for response to induction chemotherapy, relapse rate and overall survival in acute leukemia. Haematologica. 2000;85(7):711-21.
Marbeuf-Gueye C, Broxterman HJ, Dubru F, Priebe W, Garnier-Suillerot A. Kinetics of anthracycline efflux from multidrug resistance protein-expressing cancer cells compared with P-glycoprotein-expressing cancer cells. Mol Pharmacol. 1998;53(1):141-7.
Legrand O, Zittoun R, Marie JP. Role of MRP1 in mul- tidrug resistance in acute myeloid leukemia. Leukemia. 1999;13(4):578-84.
Cole SP, Deeley RG. Multidrug resistance mediated by the ATP-binding cassette transporter protein MRP. Bioessays. 1998;20(11):931-40.
Lockhart AC, Tirona RG, Kim RB. Pharmacogenetics of ATP- binding cassette transporters in cancer and chemotherapy. Mol Cancer Ther. 2003;2(7):685-98.
Beck WT, Grogan TM. Methods to detect P-glycoprotein and implications for other drug resistance-associated proteins. Leukemia. 1997;11(7):1107-9.
Beck WT, Grogan TM, Willman CL, et al. Methods to detect P-glycoprotein-associated multidrug resistance in patients’ tumors: consensus recommendations. Cancer Res. 1996;56(13):3010-20.
Ohno N, Tani A, Chen ZS, et al. Prognostic significance of multidrug resistance protein in adult T-cell leukemia. Clin Cancer Res. 2001;7(10):3120-6.
Plasschaert SL, Vellenga E, de Bont ES, et al. High functional P-glycoprotein activity is more often present in T-cell acute lymphoblastic leukaemic cells in adults than in children. Leuk Lymphoma. 2003;44(1):85-95.
Michieli M, Damiani D, Ermacora A, et al. P-glycoprotein, lung resistance-related protein and multidrug resistance associated protein in de novo acute non-lymphocytic leukaemias: biological and clinical implications. Br J Haematol. 1999;104(2):328-35.
Mitelman F. ISCN 1995. An international system for human cytogenetic nomenclature. Basel: Karger; 1995.
Mitelman F. ISCN 1991. Guidelines for cancer cytogenetics: supplement to an international system for human cytogenetic nomenclature. Basel: Karger; 1991.
Bailly JD, Muller C, Jaffrézou JP, et al. Lack of correlation between expression and function of P-glycoprotein in acute myeloid leukemia cells lines. Leukemia. 1995;9(5):799-807.
Zhou DC, Zittoun R, Marie JP. Expression of multidrug resistance-associated protein (MRP) and multidrug resis- tance (MDR1) genes in acute myeloid leukemia. Leukemia. 1995;9(10):1661-6.
Fujimaki S, Funato T, Harigae H, et al. Quantitative analysis of a MDR1 transcript for prediction of drug resistance in acute leukemia. Clin Chem. 2002;48(6 Pt 1):811-7.
Filipits M, Suchomel RW, Zöchbauer S, Brunner R, Lechner K, Pirker R. Multidrug resistance-associated protein in acute myeloid leukemia: No impact on treatment outcome. Clin Cancer Res. 1997;3(8):1419-25.
den Boer ML, Pieters R, Kazemier KM, et al. Relationship between major vault protein/lung resistance protein, multidrug resistance-associated protein, P-glycoprotein expression, and drug resistance in childhood leukemia. Blood. 1998:91(6):2092-8.
van der Kolk DM, de Vries EG, Noordhoek L, et al. Activity and expression of the multidrug resistance proteins P-glycoprotein, MRP1, MRP2, MRP3 and MRP5 in de novo and relapsed acute myeloid leukemia. Leukemia. 2001;15(10):1544-53.
Steinbach D, Friedrich J, Dawczynski K, et al. Are MTT assays the right tool to analyze drug resistance caused by ABC-transporters in patient samples? Leuk Lymphoma. 2005;46(9):1357-63.
Yague E, Armesilla AL, Harrison G, et al. P-glycoprotein (MDR1) expression in leukemic cells is regulated at two distinct steps, mRNA stabilization and translational initiation. J Biol Chem. 2003;278(12):10344-52.
Manohar CF, Bray JA, Salwen HR, et al. MYCN-mediated regulation of the MRP1 promoter in human neuroblastoma. Oncogene. 2004;23(3):753-62.
Zhu G, Chang Y, Zuo J, et al. Fudenine, a C-terminal truncated rat homologue of mouse prominin, is blood glucose-regulated and can up-regulate the expression of GAPDH. Biochem Bio- phys Res Commun. 2001;281(4):951-6.
Goidin D, Mamessier A, Staquet MJ, Schmitt D, Berthier- Vergnes O. Ribosomal 18S RNA prevails over glyceraldehyde- 3-phosphate dehydrogenase and beta-actin genes as internal standard for quantitative comparison of mRNA levels in invasive and noninvasive human melanoma cell subpopulations. Anal Biochem. 2001;295(1):17-21.
Oselin K, Mrozikiewicz PM, Pähkla R, Roots I. Quantitative determination of the human MRP1 and MRP2 mRNA expres- sion in FACS-sorted peripheral blood CD4+, CD8+, CD19+, and CD56+ cells. Eur J Haematol. 2003;71(2):119-23.
Kuss BJ, Deeley RG, Cole SP, et al. Deletion of gene for multidrug resistance in acute myeloid leukemia with inver- sion in chromosome 16: prognostic implications. Lancet. 1994;343(8912):1531-4.
Leith CP, Kopecky KJ, Chen IM, et al. Frequency and clini- cal significance of the expression of the multidrug resistance proteins MDR1/P-glycoprotein, MRP1, and LRP in acute myeloid leukemia: a Southwest Oncology Group Study. Blood. 1999;94(3):1086-99.
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