Fluorescence in situ hybridization analysis of the hTERC region in acute myeloid leukemia patients

Objective: The telomerase RNA component (hTERC) gene is located at 3q26. Increased hTERC gene expression has been frequently observed and amplification was shown using fluorescence in situ hybridization (FISH) in different cancers. The aim of this study was to determine whether hTERC gene amplificat...

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Main Authors: Özge Özer, Tuğçe Bulakbaşı Balcı, Zerrin Yılmaz, Feride İffet Şahin
Format: Article
Language:English
Published: Galenos Publishing House 2011-06-01
Series:Turkish Journal of Hematology
Subjects:
Online Access:http://www.journalagent.com/z4/download_fulltext.asp?pdir=tjh&plng=eng&un=TJH-37167
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author Özge Özer
Tuğçe Bulakbaşı Balcı
Zerrin Yılmaz
Feride İffet Şahin
author_facet Özge Özer
Tuğçe Bulakbaşı Balcı
Zerrin Yılmaz
Feride İffet Şahin
author_sort Özge Özer
collection DOAJ
description Objective: The telomerase RNA component (hTERC) gene is located at 3q26. Increased hTERC gene expression has been frequently observed and amplification was shown using fluorescence in situ hybridization (FISH) in different cancers. The aim of this study was to determine whether hTERC gene amplification is detectable by FISH in acute myeloid leukemia (AML) cells. Material and Methods: FISH and karyotype results at the time of diagnosis of 23 adult AML patients were retrospectively evaluated. Additionally, fixed cells were hybridized with an hTERC region-specific FISH probe to determine gene amplification.Results: Ten of the 23 patients had a normal karyotype and 6 had an abnormal karyotype. hTERC region amplification was not observed in any of the patients. Conclusion: Although it was reported that hTERC gene amplification may partially contribute to increased telomerase expression and activity in leukemic cells, it is not possible to make such a conclusion based on the results of the this study, as hTERC amplification was not observed in the study group. This suggests that increased telomerase activity via gene amplification in the development of AML may not be as important a factor as it is in solid tumors.
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spelling doaj.art-ae6024b67c284671af4b11da3931482c2023-09-03T08:55:46ZengGalenos Publishing HouseTurkish Journal of Hematology1300-77771308-52632011-06-012802103106Fluorescence in situ hybridization analysis of the hTERC region in acute myeloid leukemia patientsÖzge ÖzerTuğçe Bulakbaşı BalcıZerrin YılmazFeride İffet ŞahinObjective: The telomerase RNA component (hTERC) gene is located at 3q26. Increased hTERC gene expression has been frequently observed and amplification was shown using fluorescence in situ hybridization (FISH) in different cancers. The aim of this study was to determine whether hTERC gene amplification is detectable by FISH in acute myeloid leukemia (AML) cells. Material and Methods: FISH and karyotype results at the time of diagnosis of 23 adult AML patients were retrospectively evaluated. Additionally, fixed cells were hybridized with an hTERC region-specific FISH probe to determine gene amplification.Results: Ten of the 23 patients had a normal karyotype and 6 had an abnormal karyotype. hTERC region amplification was not observed in any of the patients. Conclusion: Although it was reported that hTERC gene amplification may partially contribute to increased telomerase expression and activity in leukemic cells, it is not possible to make such a conclusion based on the results of the this study, as hTERC amplification was not observed in the study group. This suggests that increased telomerase activity via gene amplification in the development of AML may not be as important a factor as it is in solid tumors.http://www.journalagent.com/z4/download_fulltext.asp?pdir=tjh&plng=eng&un=TJH-37167AMLhTERCFISH
spellingShingle Özge Özer
Tuğçe Bulakbaşı Balcı
Zerrin Yılmaz
Feride İffet Şahin
Fluorescence in situ hybridization analysis of the hTERC region in acute myeloid leukemia patients
Turkish Journal of Hematology
AML
hTERC
FISH
title Fluorescence in situ hybridization analysis of the hTERC region in acute myeloid leukemia patients
title_full Fluorescence in situ hybridization analysis of the hTERC region in acute myeloid leukemia patients
title_fullStr Fluorescence in situ hybridization analysis of the hTERC region in acute myeloid leukemia patients
title_full_unstemmed Fluorescence in situ hybridization analysis of the hTERC region in acute myeloid leukemia patients
title_short Fluorescence in situ hybridization analysis of the hTERC region in acute myeloid leukemia patients
title_sort fluorescence in situ hybridization analysis of the hterc region in acute myeloid leukemia patients
topic AML
hTERC
FISH
url http://www.journalagent.com/z4/download_fulltext.asp?pdir=tjh&plng=eng&un=TJH-37167
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AT tugcebulakbasıbalcı fluorescenceinsituhybridizationanalysisofthehtercregioninacutemyeloidleukemiapatients
AT zerrinyılmaz fluorescenceinsituhybridizationanalysisofthehtercregioninacutemyeloidleukemiapatients
AT ferideiffetsahin fluorescenceinsituhybridizationanalysisofthehtercregioninacutemyeloidleukemiapatients