Journals / Dicle Tıp Dergisi / 2016 / Cilt: 43 - Sayı: 1

Hematolojik Malignansilerde P-Glikoprotein Ekspresyonunun Akım Sitometri İle Belirlenmesi

Determination of P-Glycoprotein Expression by Flow Cytometry in Hematological Malignancies

Pages
33–38
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The blast cells expressing CD34 on their surface along with P- glycoprotein simultaneously show that multi drug resistance 1 gene is mostly active in immature cells.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Determination the expression of P-glycoprotein is especially problematic for normal tissues because immuno- logical methods are limited in terms of sensitivity.
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Key Findings & Data:We aimed to determine the expression of P-glycoprotein and CD34 by flow cytometry, and to evaluate the level of expression of P- glycoprotein and CD34 with unresponsive to treatment in pa- tients diagnosed with hematologic malignancy.
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Conclusion & Impact:The blast cells expressing CD34 on their surface along with P- glycoprotein simultaneously show that multi drug resistance 1 gene is mostly active in immature cells.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Determination the expression of P-glycoprotein is especially problematic for normal tissues because immuno- logical methods are limited in terms of sensitivity. We aimed to determine the expression of P-glycoprotein and CD34 by flow cytometry, and to evaluate the level of expression of P- glycoprotein and CD34 with unresponsive to treatment in pa- tients diagnosed with hematologic malignancy. Methods: Our study included fifty patients diagnosed with acute myeloblastic leukemia and acute lymphoblastic leuke- mia, and twenty healthy controls who were admitted to Erci- yes University Hematology-Oncology Hospital. The suspend- ed cells from bone marrow samples of patients and the pe- ripheral blood samples of healthy people were marked with P-glycoprotein phycoerythrin and CD34 FITC or PerCP Cy 5.5; and then surface expression was measured by means of flow cytometry. Results: In 6 of 30 acute myeloblastic leukemia patients P- glycoprotein and CD34 expression, in 6 of 20 acute lympho- blastic leukemia patients P-glycoprotein, in 5 of them CD34 expression were determined. A significant relation between P-glycoprotein and CD34 expressions in acute myeloblas- tic leukemia and acute lymphoblastic leukemia bone marrow samples was reported. Conclusion: Our data indicate that flow cytometry is more reliable, precise and faster than molecular methods for mea- suring P-glycoprotein expression and suggests the pos- sibility of a significant relationship between P-glycoprotein and CD34 expressions in acute myeloblastic leukemia and acute lymphoblastic leukemia bone marrow samples. The blast cells expressing CD34 on their surface along with P- glycoprotein simultaneously show that multi drug resistance 1 gene is mostly active in immature cells.

Özet

Amaç: Duyarlılık açısından sınırlı olan immünolojik yöntem- ler kullanılarak özellikle normal dokulardaki P-glikoprotein ekpresyonunun belirlenmesi sorun oluşturmaktadır. Bu çalış- mada hematolojik malignansi tanısı almış ve tedaviye yanıt vermeyen hastalarda P-glikoprotein ve CD34 ekpresyonu- nun değerlendirilmesi için, P-glikoprotein and CD34 ekpres- yonunun akım sitometri ile belirlenmesini amaçladık. Yöntemler: Erciyes Üniversitesi Mehmet-Kemal Dedeman Hematoloji-Onkoloji Hastanesine başvuran akut miyeloblas- tik lösemi ile akut lenfoblastik lösemi tanısı almış 50 hasta ve yirmi kontrol çalışmaya dâhil edildi. Hastaların kemik iliği örnekleri ile kontrol grubundan alınan periferik kan örnekle- rinden elde adilen süspanse hücreler, P-glikoprotein fikoerit- rin ile ve CD34 FITC ya da PerCP Cy 5.5 antikorları ile işa- retlendi ve daha sonra yüzey ekspresyonları akım sitometri ile ölçüldü. Bulgular: Çalışmamızda 30 akut miyeloblastik lösemi has- tasının 6’sında (%20) P-glikoprotein ve CD34 ekspresyonu tespit edilirken, 20 akut lenfoblastik lösemi hastasının 6’sında (%30) P-glikoprotein, 5’inde (%25) CD34 ekspresyonu tespit edildi. Akut miyeloblastik lösemi ve akut lenfoblastik lösemi kemik iliği örneklerinde P-glikoprotein ve CD34 ekspresyon- ları arasında anlamlı bir ilişki olduğu görüldü. Sonuç: Bulgular, akım sitometri yöntemi ile P-glikoprotein ekspresyonunun akut miyeloblastik lösemi ve akut lenfob- lastik lösemi kemik iliği örneklerinde moleküler yöntemlerden daha hızlı, güvenilir ve doğru bir şekilde ölçülebildiğini, P-gli- koprotein ile CD34 ekspresyonları arasında anlamlı bir ilişki olabileceğini göstermiştir. Yüzeyinde CD34 eksprese eden blast hücrelerinin aynı zamanda P-glikoprotein eksprese et- meleri hücrelerdeki çoklu ilaç direnci geninin daha çok olgun- laşmamış hücrelerde aktif olduğunu göstermektedir.

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Cite This Article

SARAYMEN, B., ÇETİN, A., ÇİMEN, B., ÇETİN, İ., KÖKER, M. Y., ESER, B. (2016). Hematolojik Malignansilerde P-Glikoprotein Ekspresyonunun Akım Sitometri İle Belirlenmesi. Dicle Tıp Dergisi, Cilt: 43 - Sayı: 1, 33–38. https://ajindex.com/articles/204260

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References (16)

  1. Faderl S, O’Brien S, Pui CH, et al. Adult acute lymphoblastic leukemia: concepts and strategies. Cancer 2010;116:1165- 1176
  2. Ribera JM. Advances in acute lymphoblastic leukemia in adults. Curr Opin Oncol 2011;23:692-699
  3. Ayyıldız O, Işıkdoğan A, Çelik M, et al. Invasive pulmonary aspergillosis in a patient with acute lymphoblastic leuke- mia. Dicle Medical Journal 2004;31:57-61
  4. Döhner H, Estey EH, Amadori S, et al. European Leukemi- aNet. Diagnosis and management of acute myeloid leuke- mia in adults: recommendations from an international ex- pert panel, on behalf of the European Leukemia Net. Blood 2010;115:453-474
  5. Consoli U, Santonocito A, Stagno F, et al. Multidrug resis- tance mechanisms in chronic lymphocytic leukaemia. Br J Haematol 2002;116:774-780
  6. Gross HJ, Verwer B, Houck D, et al. Detection of rare cells at a frequency of one per million by flow cytometry. Cytom- etry 1993;14:519-526
  7. Gross HJ, Verwer B, Houck D, et al. Model study detecting breast cancer cells in peripheral blood mononuclear cells at frequencies as low as 10(-7), Proc Natl Acad Sci USA 1995;92:537-541
  8. Rosenblatt JI, Hokanson JA, McLaughlin SR, et al. Theo- retical basis for sampling statistics useful for detecting and isolating rare cells using flow cytometry and cell sorting. Cytometry 1997;27:233-238
  9. Rehsem MA, Corpuzm S, Heimfeldm S, et al. Use of fluores- cence threshold triggering and high-speed flow cytometry for rare event detection. Cytometry 1995;22:317-322
  10. Bay A, Boşnak V, Coşkun E, et al. Severe Rotavirus gas- troenteritis in a patient with infant leukemia. Dicle Medical Journal 2011;38:101-103
  11. Drach D, Zhao S, Drach J, et al. Subpopulations of normal peripheral blood and bone marrow cells express a functional multidrug resistant phenotype. Blood 1992;80:2729-2734
  12. Fackler MJ, Krause DS, Smith OM, et al. Full-length but not truncated CD34 inhibits hematopoietic cell differentia- tion of M1 cells. Blood 1995;85:3040-3047
  13. Healy L, May G, Gale K, et al. The stem cell antigen CD34 functions as a regulator of hemopoietic cell adhesion. Proc Natl Acad Sci USA 1995;92:1220-1224
  14. Cheng J, Baumhueter S, Cacalano G, et al. Hematopoi- etic defects in mice lacking the sialomucin CD34. Blood 1996;87:479-490
  15. Salati S, Zini R, Bianchi E, et al. Role of CD34 antigen in myeloid differentiation of human hematopoietic progenitor cells. Stem Cells 2008;26:950-959
  16. Haase D, Feuring-Buske M, Könemann S, et al. Evidence for mal