Effective and economical column-based method for RNA isolation from animal cells

Area of Science:

• Molecular Biology
• Biochemistry
• Cell Biology

Background:

• High-quality RNA isolation is crucial for molecular biology research.
• Existing RNA extraction methods can be costly, toxic, or time-consuming.

Purpose of the Study:

• To develop an efficient, economical, and low-toxicity method for RNA extraction from animal cells.
• To ensure the isolation of high-quality RNA suitable for downstream applications.

Main Methods:

• Utilized guanidine hydrochloride as a lysis buffer and sodium acetate as a wash buffer.
• Extracted RNA from TM3 Leydig cells and ovarian granulosa cells.
• Verified RNA integrity and functionality using polymerase chain reaction (PCR) and real-time quantitative PCR (RT-PCR).

Main Results:

• Successfully extracted RNA fragments from mammalian cells with yields exceeding 120 ng/5 × 10^6 cells.
• Demonstrated RNA integrity and successful gene fragment amplification via PCR.
• Confirmed the utility of extracted RNA for detecting mRNA expression levels of specific genes (steroidogenic acute regulatory protein and hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 1) using RT-PCR.
• Obtained RNA with sufficient purity and yield for cDNA synthesis and PCR amplification.

Conclusions:

• The developed RNA extraction method is characterized by low toxicity, safe handling, and cost-effectiveness.
• RNA isolation can be completed within 20 minutes.
• The method is versatile, applicable to various animal cell samples, and recommended for broader use.