RNA Integrity Rescue & RNase-Control Workflow

Pain point

Low yield and/or degraded RNA (poor integrity) compromises RT-qPCR and transcriptomics.

Repro/diagnostic steps

1. Log sample handling time/temperature and thaw/freeze cycles.
2. Identify where RNase exposure could occur (bench, gloves, tips, water, reagents).
3. Confirm if degradation is pre-extraction (sample) or introduced during extraction.

Root causes (common)

• RNase contamination in work area, tools, or reagents.
• Slow processing or warm sample handling.
• Improper storage/stabilization prior to extraction.

Fix workflow

1. Establish an RNase-free staging area (cleaning agent + dedicated RNase-free tools).
2. Minimize time at room temperature; keep samples cold and process consistently.
3. Use fresh aliquots; avoid repeated freeze-thaw.
4. Add a "process control" sample to detect step-specific degradation.

Expected result

• RNA integrity improves; yield and downstream performance stabilize.

References

• https://www.qiagen.com/us/resources/resourcedetail?id=c6f19b29-119f-4d4a-bcbb-3f2c4d4b9d2c
• https://www.thermofisher.com/us/en/home/references/ambion-tech-support/rna-isolation/general-articles/the-fundamentals-of-rnase-control.html
• https://www.neb.com/en/tools-and-resources/usage-guidelines/general-guidelines-for-successful-rna-purification-using-the-monarch-spin-rna-isolation-kit-mini-neb-t2110