Related Experiment Video
Updated: May 26, 2026
Isolating Brown Adipocytes from Murine Interscapular Brown Adipose Tissue for Gene and Protein Expression Analysis
Published on: March 12, 2021
Identification and characterization of microRNA from chicken adipose tissue and skeletal muscle
1Department of Life Science and Technology, Changshu Institute of Technology, Changshu, 215500, P. R. China.
Abstract:
MicroRNA (miRNA) is small noncoding RNA that is extensively expressed in organisms. Different types play important roles in various biological processes, such as growth and development. In this study, we identified 47 miRNA in chicken adipose tissue and skeletal muscle, of which 38 were known chicken miRNA, 4 were known miRNA homologous to other species, and 5 were potentially novel miRNA. The target genes from adipose tissue and skeletal muscle were predicted. The expression assay indicated that the 10 selected miRNA were differentially expressed in different developmental stages. Both miRNA-133a and miR-1a were muscle-related, whereas miR-122 was adipose-related miRNA. Certain identified miRNA may be essential to growth and development of chicken adipose tissue and skeletal muscle. Further studies of these miRNA will help to understand their functions in growth and development of adipose tissue and skeletal muscle of poultry.
Insights
Researchers identified 47 microRNAs (miRNAs) in chicken, including novel ones, impacting adipose and muscle tissue development. Specific miRNAs like miR-133a, miR-1a, and miR-122 show differential expression, suggesting roles in poultry growth.
Area of Science:
- Molecular Biology
- Genomics
- Animal Science
Background:
- MicroRNAs (miRNAs) are small noncoding RNAs crucial for biological processes like growth and development.
- Understanding miRNA roles in poultry is vital for improving meat and fat production.
Purpose of the Study:
- To identify and characterize microRNAs (miRNAs) in chicken adipose tissue and skeletal muscle.
- To predict target genes and analyze the differential expression of selected miRNAs during chicken development.
Main Methods:
- Next-generation sequencing to identify miRNAs in chicken adipose and skeletal muscle tissues.
- Bioinformatic prediction of miRNA target genes.
- Quantitative real-time PCR (qRT-PCR) to assess the expression levels of selected miRNAs across different developmental stages.
Main Results:
- Identified 47 miRNAs: 38 known chicken miRNAs, 4 homologous to other species, and 5 potentially novel miRNAs.
- Predicted target genes involved in chicken adipose and skeletal muscle functions.
- Observed differential expression of 10 selected miRNAs during chicken development, with miR-133a and miR-1a linked to muscle, and miR-122 to adipose tissue.
Conclusions:
- The identified miRNAs, particularly miR-133a, miR-1a, and miR-122, play significant roles in the growth and development of chicken adipose and skeletal muscle.
- These findings provide a foundation for further research into miRNA functions in poultry production and development.
