RNA extraction from tissues and cultured cells requires different strategies depending on sample composition, RNA type and downstream application. Soft tissues and cultured cells can often be processed using standard column-based workflows, while fibrous, lipid-rich or otherwise difficult tissues may require stronger lysis chemistry. In addition, some applications require only large RNA, while others require recovery of microRNA or more complete removal of genomic DNA.
Magen provides a structured tissue and cell RNA extraction portfolio covering silica membrane, magnetic bead and MagZol-based workflows. These systems support routine total RNA purification, microRNA isolation, high-throughput processing and automated extraction from a wide range of biological samples.
This guide is designed to help laboratories and distributors select the most appropriate RNA extraction workflow based on sample type, RNA target and downstream application requirements.
RNA extraction results depend not only on the selection of an appropriate extraction system, but also on proper sample handling and RNase control throughout the workflow.
RNA is highly susceptible to degradation by RNases, which are widely present in the environment, laboratory surfaces and reagents. To ensure reliable results, it is critical to use RNase-free consumables, maintain clean working conditions and minimize sample handling time during extraction.
For low-abundance RNA such as circulating RNA or microRNA, careful handling becomes even more important, as degradation or contamination can significantly affect downstream analysis.
- Routine RNA extraction from soft tissues or cultured cells → HiPure Total RNA Kit (R4011)
- Lower genomic DNA contamination → HiPure Total RNA Plus Kit (R4111)
- DNA-sensitive workflows requiring more complete DNA removal → HiPure Total RNA Kit (IVD4121)
- High-throughput RNA extraction → HiPure Total RNA 96 Kit (R4016)
- Fibrous, hard or difficult-to-lyse tissues → HiPure Universal RNA Kit (R4130)
- Difficult universal samples with automation preference → MagPure Universal RNA Kit II (R6623)
- Protein-rich tissue lysates → MagPure Total RNA Kit (R6622)
- microRNA extraction from cultured cells → HiPure Cell miRNA Kit (R4311)
- microRNA extraction from tissues or samples requiring large/small RNA separation → HiPure Universal miRNA Kit (R4310)
- Standard automated RNA extraction → MagPure Universal RNA Kit (IVD3020)
- Continuous automated workflow without pause → MagPure Universal RNA Kit B (IVD3020B)
- Automated extraction from protein-rich lysates → MagPure Total RNA Kit (R6622)
- Automated extraction from difficult or heterogeneous samples → MagPure Universal RNA Kit II (R6623)
Note: Standard total RNA kits typically recover RNA fragments larger than approximately 200 nt. For microRNA or other small RNA applications, dedicated small RNA kits should be selected.
In low-input or low-yield RNA extraction workflows, A260/230 values may appear lower than expected and should not be used as the sole criterion for evaluating extraction performance. For column-based RNA purification, background absorbance from chaotropic buffer components can have a greater impact when RNA concentration is low.
By contrast, apparently higher A260/230 values do not always indicate better RNA quality. RNA quality should be interpreted together with yield, integrity and downstream assay performance such as reverse transcription, qRT-PCR or sequencing compatibility.
For this reason, Magen recommends evaluating RNA samples based on overall downstream suitability rather than relying on A260/230 alone, especially for low-abundance RNA samples.
| Product | Technology | RNA Type | Sample Type | Key Strategy | Best For |
|
HiPure Total RNA Kit (R4011) |
Spin Column | Large RNA (>200 nt) |
Soft tissues/cells |
Single-column silica RNA purification | Routine total RNA extraction from soft tissues and cultured cells for RT-PCR, qPCR and gene expression analysis |
|
HiPure Total RNA Plus Kit (R4111) ⭐ |
Dual-column | Large RNA (>200 nt) |
Soft tissues / cells |
DNA removal column + RNA column | RT-PCR and qPCR workflows requiring reduced genomic DNA contamination |
|
HiPure Total RNA Plus Kit (DNase) (IVD4121) |
Dual-column + DNase | Total RNA + miRNA |
Clinical tissues |
DNA column + DNase digestion | DNA-sensitive RNA workflows, RT-PCR and gene expression analysis requiring more complete genomic DNA removal |
|
HiPure Total RNA 96 Kit (R4016) |
96-well column plate |
Large RNA (>200 nt) |
Cells / tissues |
High-throughput silica membrane purification | High-throughput RNA extraction for screening studies and large-scale gene expression analysis |
|
HiPure Universal RNA Kit (R4130) |
MagZol + column | Total RNA + miRNA |
Difficult tissues |
MagZol phenol lysis + column purification | Fibrous, hard-to-lyse or otherwise challenging tissues including muscle and other difficult samples |
|
HiPure Universal miRNA Kit (R4310) ⭐ |
MagZol + column | Total RNA or separate Large RNA + miRNA |
Cells / tissues |
Ethanol-controlled size fractionation | microRNA profiling, small RNA analysis and workflows requiring separation of large RNA and small RNA fractions |
|
HiPure Cell miRNA Kit (R4311) |
Spin column | Total RNA + miRNA |
Cultured cells |
Column purification optimized for total RNA including microRNA from cultured cells | microRNA extraction from cultured cells, microRNA expression profiling and small RNA RT-PCR analysis |
|
MagPure Universal RNA Kit (IVD3020) ⭐ |
Magnetic beads | Total RNA |
Cells / tissues |
Magnetic silica particle adsorption + DNase | Standard automated total RNA purification for RT-PCR, qPCR and routine sequencing preparation workflows |
|
MagPure Universal RNA Kit B (IVD3020B) |
Magnetic beads | Total RNA |
Low-input samples |
Continuous automation workflow | Continuous automated RNA purification without pause, especially for low-input samples and clinical laboratory workflows |
|
MagPure Total RNA Kit (R6622) |
Magnetic beads | Total RNA |
Cells / tissues |
Magnetic purification with Proteinase K | RNA extraction from protein-rich or difficult tissue lysates, as well as general automated RNA purification workflows |
|
MagPure Universal RNA Kit II (R6623) |
MagZol + magnetic beads | Total RNA |
Universal samples |
MagZol phenol lysis + magnetic adsorption | RNA extraction from protein-rich or difficult tissue lysates, as well as general automated RNA purification workflows |
For detailed product specifications and workflow descriptions, please refer to individual product pages.
A typical laboratory setup for tissue and cell RNA extraction can be established using a combination of:
⭐ R4111 HiPure Total RNA Plus Kit for routine total RNA extraction with reduced genomic DNA contamination
⭐ R4310 HiPure Universal miRNA Kit for microRNA and small RNA applications
⭐ IVD3020 MagPure Universal RNA Kit for automated RNA purification workflows
This combination provides broad coverage across common sample types and downstream applications, while maintaining flexibility between manual and automated workflows.
