Abstract
The expression of Ki-67 and CD71 was determined on the immature CD34+ cells from patients with acute leukaemias (AL) and the relationship between the markers was established. 54 patients with AL were selected from December 2008 to November 2009 at Oncology Reference Center, Maranhão, Brazil. Ki-67 and CD71 expression was determined by flow cytometry in cells positive for immaturity marker CD34. Of 54 patients, 34 (63.0%) had acute lymphoid leukaemias (ALL), and 73.5% of them were type B (ALL-B) and 26.5% type T (ALL-T). The highest Ki-67 expression in bone marrow (BM) and peripheral blood (PB) was found in ALL-B than in ALL-T or acute myeloid leukaemia (AML). The highest CD71 expression was detected in BM samples from ALL-T and in PB samples from AML. An association between Ki-67 and CD71 in BM from AML and in PB from ALL-B was observed. The expression of Ki-67 in acute leukaemias did not differ in the analyzed samples; however, great differences in CD71 expression were observed in BM from ALL-T and in PB from AML. These findings will be useful for diagnosis purposes and for monitoring leukemic patients by detecting the neoplastic cell proliferation markers.References
1. Teixeira RAP, Bruniera P, Cusato MP, Borsato ML. Câncer infantil. In: Baracat FF, Fernandes HJJ, Silva MJ. Cancerologia atual: um enfoque multidisciplinar. São Paulo: Rocca; 2000. p. 426-51.
2. Zhang L, Liu J, Lin H, Hu Q, Liu A, Hu Y. Expression of Survivin, CDK4, Ki-67 and clinical significance in pediatric acute leukemia. J Huazhong Univ Sci Technol Med Sci. 2006;26(5):552-4.
3. Komberg IJ, Villaret D, Popp M, Lui L, McLaren R, Brown H, et al. Gene expression profiling in squamous cell carcinoma of the oral cavity shows abnormalities in several signaling pathways. Laryngoscope. 2005;115(4):690-8.
4. Weiss, DJ. Application of flow cytometric techniques to veterinary clinical hematology. Vet Clin Pathol. 2002;31(2):72-82.
5. Scholzen T, Gerdes J. The Ki-67 Protein: from the known and the unknown. Cell Physiol. 2000;182:311-22.
6. Ned R M, Swat W, Andrews NC. Transferrin receptor 1 is differentially required in lymphocyte development. Blood. 2003;102:3711-8.
7. Barclay AN, Birkeland ML, Brown MH, Beyers BD, Davis SJ, Somoza C, et al. The leucocyte antigen facts book. Londres: Academic Press; 1993. p. 258-9.
8. Instituto Nacional de Câncer (Brasil). Estimativa 2010: incidência de câncer no Brasil. Rio de Janeiro: INCA, 2009. [acesso 2010 jan 10]. Disponível em: [http://www.inca.gov.br].
9. Bennett JM, Catovsky D, Daniel MT, Flandrin G, Galton DA, Gralnick HR, et al. Proposals for the classification of the acute leukaemias. Br J Haematol. 1976;33:451-8.
10. Bennett JM, Catovsky D, Daniel MT, Flandrin G, Galton DA, Gralnick HR, et al. Proposals for the recognition of minimally differentiated acute myeloid leukemia (AMLM0). Br J Haematol.1991;78:325-9.
11. Bene MC, Castoldi G, Knapp W, Ludwig WD, Matutes E, Orfao A, et al. Proposal for the immunological classification of acute leukaemias: European Group for the Immunological Characterization of Leukemia (EGIL). Leukemia. 1995;9:1783-6.
12. Coebergh JW, Capocaccia R, Gatta G, Magnani C, Stiller CA. Childhood cancer survival in Europe, 1978-1992: the UROCARE Study. Eur J Cancer. 2011;37(6):671-2.
13. Ucci G, Riccardi A, Dörmer P, Danova M. Rate and time of DNA synthesis of human leukemic blasts in bone marrow and peripheral blood. Cell Tissue Kinet. 1986;19:429-35.
14. Drach J, Gattringer C, Glassl H, Schwarting R, Stein H, Huber H. Simultaneous flow cytometric analysis of surface markers and nuclear Ki-67 antigen in leukemia and lymphoma. Cytometry. 1989;10:743-9.
15. Beitler M B. Estudo da proliferação celular nas leucemias agudas. [tese de doutorado]. São Paulo (SP): Faculdade de Medicina da Universidade de São Paulo; 1997.
16. Dong HY, Wilkes S, Yang H. CD71 is selectively and ubiquitously expressed at high levels in erythroid precursors of all maturation stages: a comparative immunochemical study with glycophorin A and hemoglobin A. Am J Surg Pathol. 2003;102:35:723-32.
17. Thorstensen K, Romslo I. The transferrin receptor: its diagnostic value and its potential as therapeutic target. Scand J Clin Lab Invest. 1993;53(Suppl):113-20.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright (c) 2012 Instituto Adolfo Lutz Journal