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Laser Capture Microdissection of Mouse Embryonic Cartilage and Bone for Gene Expression Analysis
Published on: December 18, 2019
Fast method for skeletal tissue gene expression analysis
Luca Dalle Carbonare1, Maria Teresa Vilei2, Chiara Stranieri1
1Department of Medicine, Section of Internal Medicine D, University of Verona, I-37134 Verona, Italy.
Abstract:
Several chronic diseases have been associated with bone alteration in the last few years. Despite the wealth of information provided by the analysis of the transcriptome in affected tissues, only a limited number of studies evaluated gene expression in bone tissue due to the difficulty to obtain high quality RNA. Therefore, skeletal pathologies have been often associated to a defective maturation process that occurs during recruitment of progenitor stem cells. In order to explore the possibility of analysing the gene expression during osteogenic differentiation in skeletal tissue, a single-step method to extract well-preserved RNA from bone specimens was performed. A comparison between this technique and a traditional method was made by analysing the quality and yield of RNA obtained. In addition, RNAs were assayed by reverse transcription-quantitative polymerase chain reaction to analyse the expression levels of the bone genes associated with the differentiation process in a mouse model. The present data showed that good quality RNA can be obtained from bone tissue by a simple single-step method allowing the expression analysis of the genes encoded by skeletal tissue. In conclusion, the present study allows the possibility to easily obtain good quality RNA from bone tissue that is suitable for gene expression studies of bone diseases.
Insights
Researchers developed a simple method to extract high-quality RNA from bone tissue. This technique enables gene expression analysis crucial for understanding bone diseases and osteogenic differentiation.
Area of Science:
- Biochemistry
- Molecular Biology
- Genetics
Background:
- Chronic diseases are increasingly linked to bone alterations.
- Analyzing gene expression in bone tissue is challenging due to difficulties in obtaining high-quality RNA.
- Skeletal pathologies are often attributed to impaired progenitor cell maturation during osteogenesis.
Purpose of the Study:
- To develop and validate a straightforward method for extracting high-quality RNA from bone specimens.
- To enable gene expression analysis during osteogenic differentiation in skeletal tissues.
- To facilitate research into the genetic underpinnings of bone diseases.
Main Methods:
- A novel single-step RNA extraction method was developed for bone tissue.
- The new method was compared against a traditional technique for RNA quality and yield.
- Gene expression analysis was performed using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) in a mouse model.
Main Results:
- The single-step method successfully yielded high-quality RNA from bone tissue.
- This RNA was suitable for analyzing gene expression related to osteogenic differentiation.
- The method proved effective in a mouse model for skeletal gene expression studies.
Conclusions:
- A simple, single-step RNA extraction technique provides high-quality RNA from bone.
- This method overcomes previous limitations in analyzing bone gene expression.
- The technique supports gene expression studies for various bone diseases and differentiation processes.
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