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Avicenna Journal of Medical Biotechnology، جلد ۹، شماره ۲، صفحات ۱۰۴-۱۰۸
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| عنوان انگلیسی |
Development of Flow Cytometry-Fluorescent In Situ Hybridization (Flow-FISH) Method for Detection of PML/RARa Chromosomal Translocation in Acute Promyelocytic Leukemia Cell Line |
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| چکیده انگلیسی مقاله |
Background: Acute Promyelocytic Leukemia (APL) is a subclass of acute myeloid leukemia. The chromosomal aberration in 95% of APL cases is t(15; 17) (q22; q21), which prevents cell differentiation. Characterization of the underlying molecular lesion is valuable in determining optimal treatment strategy. The goal of this study was to develop a new and powerful Flow- FISH technique to detect the long isoform (L) of PML-RARa fusion transcript in NB4 cell line. Methods: To achieve the best condition for fixation, two different fixatives including 2% paraformaldehyde and 75% ethanol were used. 0.2% Triton X-100 and 0.2% saponin were used for the permeabilization step .In hybridization, a wide range of times and temperatures were used and probe was designed in FRET system. Results were confirmed by fluorescent microscope assay and reverse transcription PCR. Results: In the present study, a novel technique was successfully optimized that combines in situ hybridization with flow cytometry to detect the presence of PML-RARa transcript. Using standard fixation and permeabilization protocol of 2% PFA and 0.2% saponin gave the best fluorescent results in flow cytometry. Also, results indicated that the optimum time and temperature for hybridization was 2 hr at 42oC. The results of reverse transcription PCR and fluorescent microscopy confirmed the presence of PML-RARa transcript. Conclusion: The concordance between the results of Flow-FISH and those of two other techniques including reverse transcription PCR and FISH indicated that this method would be applicable as a diagnostic test for APL in clinical samples and MRD monitoring. |
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| نویسندگان مقاله |
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| نشانی اینترنتی |
http://www.ajmb.org/En/Article.aspx?id=274 |
| فایل مقاله |
اشکال در دسترسی به فایل - ./files/site1/rds_journals/133/article-133-376018.pdf |
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| زبان مقاله منتشر شده |
en |
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