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Research ArticleOriginal Article
Open Access

Quick gene expression profiling of promyelocytic cell line HL-60

Syed S. Hussain, Hala S. Khalil, Tala M. Bakheet and Suad M. Bin Amer
Saudi Medical Journal November 2003, 24 (11) 1199-1204;
Syed S. Hussain
Department of Biological and Medical Research, King Faisal Specialist Hospital and Research Centre, MBC 03, PO Box 3354, Riyadh 11211, Kingdom of Saudi Arabia. Tel. +966 (1) 4427865. Fax. +966 (1) 4427858. E-mail: [email protected]
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  • For correspondence: [email protected]
Hala S. Khalil
Department of Biological and Medical Research, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia.
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Tala M. Bakheet
Department of Biostatistics, Epidemiology and Scientific Computing (Bioinformatics Section), King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia.
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Suad M. Bin Amer
Department of Biological and Medical Research, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia.
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Abstract

OBJECTIVE: A number of techniques have been developed to perform gene expression profiling. We report preliminary results from our exploratory study, using sequential analysis of gene expression (SAGE) technique, to profile the undifferentiated and differentiated HL-60 cells in line with our interest to characterize the cancer phenotype. The aim of the study is to evaluate the technique and to understand the molecular bases of these 2 states of cells.

METHODS: HL-60 cells were differentiated after treatment with dimethyl sulfoxide. Tag libraries were prepared from the messenger RNAs of the undifferentiated and differentiated cells according to the SAGE protocol. The search for genes corresponding to the tags was carried out using SAGE software. The tags and the genes from the 2 libraries were compared for their levels of expression. The study was carried out at the King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia during the year 2001.

RESULTS: A comparison of tags from the 2 libraries revealed that 151 tags corresponding to 57 genes expressed differentially: 60 tags were elevated and 59 were repressed in the undifferentiated cells. Thirty- two tags were equally expressed in both types of cells. Of the corresponding genes, 25 were expressed at higher, 17 at lower, while 15 were expressed at comparable levels in both cell types. In the profile of undifferentiated cells, the genes involved in mitochondrial function and protein synthesis were prominent, while in the differentiated cells, the genes coding for proteins associated with cell membranes, signal transduction and for cell specific functions were prominent. The genes, expressed equally in both the cell types, were concerned with the maintenance of the living state.

CONCLUSION: Sequential analysis of gene expression is a useful technique for gene expression profiling. As previously indicated by others, a dedicated team can generate useful data within reasonable time limits.

  • Copyright: © Saudi Medical Journal

This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Saudi Medical Journal: 24 (11)
Saudi Medical Journal
Vol. 24, Issue 11
1 Nov 2003
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Quick gene expression profiling of promyelocytic cell line HL-60
Syed S. Hussain, Hala S. Khalil, Tala M. Bakheet, Suad M. Bin Amer
Saudi Medical Journal Nov 2003, 24 (11) 1199-1204;

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Quick gene expression profiling of promyelocytic cell line HL-60
Syed S. Hussain, Hala S. Khalil, Tala M. Bakheet, Suad M. Bin Amer
Saudi Medical Journal Nov 2003, 24 (11) 1199-1204;
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© 2025 Saudi Medical Journal Saudi Medical Journal is copyright under the Berne Convention and the International Copyright Convention.  Saudi Medical Journal is an Open Access journal and articles published are distributed under the terms of the Creative Commons Attribution-NonCommercial License (CC BY-NC). Readers may copy, distribute, and display the work for non-commercial purposes with the proper citation of the original work. Electronic ISSN 1658-3175. Print ISSN 0379-5284.

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