FAQ-2529
Can PAXgene Tissue fixed, paraffin-embedded (PFPE) tissue be used for in situ hybridization?
Yes, human tissue samples treated with the PAXgene Tissue System were successfully used for Fluorescence in situ hybridization (FISH) and Chromogenic in situ hybridization (CISH). However, specimens treated with the PAXgene Tissue System are more sensitive to enzyme digestion compared to formalin-fixed samples. Enzyme digestion and other pretreatment steps may need to be optimized.
Related products
PAXgene Tissue FIX Container (50 ml)
The PAXgene Tissue FIX Container (50 ml) enables fixation and stabilization of tissue specimens (up to 4 samples with a maximum size of 4 x 15 x 15 mm placed into 4 standard tissue cassettes, or a single tissue sample with a maximum size of 20 x 20 x 20 mm). PAXgene Tissue FIX Containers (50 ml) are single-chamber containers prefilled with 50 ml of PAXgene Tissue FIX. PAXgene Tissue FIX rapidly penetrates and fixes the tissue, preserving tissue morphology. Fixation is comparable to formalin fixation, but without the destructive nucleic acid crosslinking and degradation. After fixation, PAXgene Tissue FIX is removed and replaced by PAXgene Tissue STABILIZER within the same container. Nucleic acids, proteins, and morphology of the sample are stable up to 7 days at room temperature, and for longer periods at 2–8°C, or even at –20°C and –80°C. Stabilized samples can be embedded in paraffin for histological studies. PAXgene Tissue Kits and supplementary protocols provide efficient subsequent purification of RNA, miRNA, DNA, and/or proteins from the same sample. PAXgene Tissue FIX Container (50 ml) is only to be used in conjunction with PAXgene Tissue STABILIZER.