Extraction and purification of total RNA - FFPE

Extraction and purification of total RNA - FFPE


Formalin-fixed paraffin-embedded (FFPE) tissue samples constitute a vast panel of pathologically well-characterised clinical specimens and these histological sections represent a huge resource that can be used to conduct biomarker research into various diseases. However, purification of quality, amplifiable RNA from formalin-fixed, paraffin-embedded (FFPE) tissue can be a challenging task. The fixation process can be extremely aggressive and can result in fragmentation of the nucleic acids present in the sample. RNA is particularly susceptible to fragmentation, given its inherent fragility. Fixation also introduces cross-linking which can hamper the processing capability of many downstream applications. The storage conditions of FFPE samples can also play a role in the quality of the RNA present in the sample. Archived FFPE tissue blocks and slides may be decades old and have been subjected to conditions that have compromised the integrity of the sample.
Formalin-fixed tissue samples are therefore a challenge for RNA extraction, often leading to low yields of amplifiable RNA and poor performance in subsequent steps involving enzymatic manipulation, including reverse transcription and sequencing library preparation. However, there are reagents optimised for RNA extraction from such samples.

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Katalog-Nummer
Beschreibung
Cond.
Preis zzgl. MwSt.
K1011100
 1kit 
KA6534
 1Kit 
Z2212004
 1kit(48extractions) 
Z2212003
 1kit(48extractions) 
25360
 4Preps 
25300
 50Preps 
Dx25300
 50Preps