Detection of bovine interleukin 1 alpha and interleukin 1 beta gene expression by reverse transcription-polymerase chain reaction
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Insights
Bovine interleukin 1 alpha (IL-1 alpha) and interleukin 1 beta (IL-1 beta) mRNA were detected in peripheral blood mononuclear cells (PBMCs) using reverse transcription-polymerase chain reaction (RT-PCR). This study quantifies IL-1 alpha and IL-1 beta mRNA expression in bovine PBMCs.
Area of Science:
- Immunology
- Molecular Biology
Background:
- Interleukin 1 (IL-1) is a crucial cytokine involved in immune regulation and inflammation.
- IL-1 plays a significant role in initiating immune responses, particularly through helper T cell proliferation.
Purpose of the Study:
- To detect and quantify the mRNA expression of bovine interleukin 1 alpha (IL-1 alpha) and interleukin 1 beta (IL-1 beta) in peripheral blood mononuclear cells (PBMCs).
Main Methods:
- Bovine PBMCs were isolated, and poly (A)+ RNA was extracted.
- Complementary DNA (cDNA) was synthesized via reverse transcription.
- Polymerase chain reaction (PCR) with sequence-specific primers was used to amplify IL-1 alpha and IL-1 beta mRNA.
- Products were analyzed using agarose gel electrophoresis.
Main Results:
- IL-1 alpha mRNA was detected from 0.01 ng of poly (A)+ RNA and IL-1 beta mRNA from 0.1 pg of poly (A)+ RNA in lipopolysaccharide (LPS)-stimulated PBMCs.
- Both IL-1 alpha and IL-1 beta mRNAs were detected at low levels in unstimulated PBMCs.
Conclusions:
- The study successfully demonstrated the expression of IL-1 alpha and IL-1 beta mRNA in bovine PBMCs.
- RT-PCR is a sensitive method for detecting IL-1 mRNA in bovine immune cells, even at low expression levels.
Abstract:
Interleukin 1 (IL-1) is a cytokine that mediates a variety of immunoregulatory and inflammatory activities. Its role in proliferation of helper T cells is particularly important in the initiation of immune responses. Bovine interleukin 1 alpha (IL-1 alpha) and interleukin 1 beta (IL-1 beta) mRNA expression was detected by reverse transcription-polymerase chain reaction (RT-PCR) technique in bovine peripheral blood mononuclear cells (PBMCs). Poly (A) + RNAs isolated from PBMCs by guanidium thiocyanate/oligo (dT)-cellulose chromatography extraction, were reverse-transcribed and the complementary DNAs amplified in a polymerase chain reaction primed with bovine IL-1 alpha and IL-1 beta sequence-specific primers. RT-PCR products were analyzed by agarose gel electrophoresis. As a result of the amplification of specific cDNAs by 35 cycles of PCR, the IL-1 alpha mRNA was detected from 0.01 ng of poly (A) + RNA, and IL-1 beta mRNA was detected from 0.1 pg of poly (A) + RNA isolated from PBMCs stimulated with lipopolysaccharide (LPS) for 4 h. Using 5 ng of poly (A) + RNA isolated from fresh bovine PBMCs unstimulated with any mitogen as template for RT-PCR, both IL-1 alpha and IL-1 beta mRNAs were detected at a low level.
