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A guide to issues in microarray analysis: application to endometrial biology

¹ Prince Henry’s Institute of Medical Research, PO Box 5152, Clayton, Victoria, 3168, Australia and ² Dept of Obstetrics & Gynaecology, Monash University, Clayton, Victoria, 3168, Australia

Correspondence should be addressed to C A White; Email: christine.white{at}phimr.monash.edu.au

Within the last decade, the development of DNA microarray technology has enabled the simultaneous measurement of thousands of gene transcripts in a biological sample. Conducting a microarray study is a multi-step process; starting with a well-defined biological question, moving through experimental design, target RNA preparation, microarray hybridisation, image acquisition and data analysis – finishing with a biological interpretation requiring further study. Advances continue to be made in microarray quality and methods of statistical analysis, improving the reliability and therefore appeal of microarray analysis for a wide range of biological questions. The purpose of this review is to provide both an introduction to microarray methodology, as well as a practical guide to the use of microarrays for gene expression analysis, using endometrial biology as an example of the applications of this technology. While recommendations are based on previous experience in our laboratory, this review also summarises the methods currently considered to be best practice in the field.