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Maxwell 16 ffpe plus lev dna purification kit

Manufactured by Promega
Sourced in United States, Germany, France, United Kingdom

The Maxwell 16 FFPE Plus LEV DNA Purification Kit is a laboratory equipment product designed to extract and purify DNA from formalin-fixed, paraffin-embedded (FFPE) tissue samples. The kit utilizes magnetic bead-based technology to isolate DNA, which can then be used for various downstream applications.

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91 protocols using maxwell 16 ffpe plus lev dna purification kit

1

Gastric Cancer Metastasis Profiling

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This study was conducted in compliance with the Helsinki Declaration. The institutional review board at Stanford University School of Medicine approved the study protocol (19071). We obtained a matched set of samples including a gastric primary cancer, two metastases from each ovary, and normal stomach tissue (Additional file 2: Figure S2). These samples were obtained from the Stanford Cancer Institute tissue bank. Based on a formal pathology review, the overall tumor purity of these samples was estimated at less than 40%. Macro-dissection of the tumor samples was performed to increase the tumor DNA fraction in the final extraction. We used the Maxwell 16 FFPE Plus LEV DNA purification kit to extract genomic DNA from the formalin-fixed paraffin-embedded (FFPE) samples and Maxwell 16 Tissue DNA purification to extract DNA from frozen samples according to the manufacturer’s protocol (Promega, Madison, WI, USA). Final DNA concentrations were quantified with the Qubit 2.0 fluorometer (Invitrogen, Carlsbad, CA, USA).
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2

Nucleic Acid Extraction from FFPE and Blood Samples

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Genomic DNA was extracted from FFPE tissues using Maxwell 16 FFPE Plus LEV DNA Purification Kit (Promega) and blood samples from QiaAmp Mini Kit (QIagen) following manufacturers’ instructions. DNA concentration was dosed by Qubit fluorometer (Invitrogen), absorbances with NanoDrop spectrophotometer (Thermo Fisher Scientific), and quality profiles assessed on Tapestation (Agilent Technologies).
Total RNA from FFPE tissues was extracted using FormaPure RNA (Beckman Coulter). RNA concentration and absorbances were analyzed with NanoDrop spectrophotometer (Thermo Fisher Scientific), and quality profiles assessed on Tapestation (Agilent Technologies).
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3

Automated DNA and RNA Extraction

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Genomic DNA and RNA were extracted using the Promega Maxwell RSC device (Promega, Madison, USA). DNA was isolated with the Maxwell 16 Tissue DNA purification kit, the Maxwell 16 blood purification kit, or the Maxwell 16 FFPE Plus LEV DNA purification kit (Promega, Madison, USA) according to the manufacturer’s instructions. RNA was extracted with the Maxwell 16 LEV simplyRNA or the Maxwell 16 LEV RNA FFPE purification kit (Promega, Madison, USA) following the manufacturer’s protocols. Agilent 4200 TapeStation (Agilent Technologies, Santa Clara, USA) was used to determine RNA integrity numbers.
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4

Microdissection of EATL-II Tumour

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Fifteen cases of routinely processed (FFPE) surgical specimens of EATL-II were selected for availability of tumour and matching non-tumoural intestinal tissue. Areas with highest tumour cell content and those devoid of neoplastic cells were marked on HE slides by a pathologist and subsequently reported on corresponding FFPE sections stained with toluidine blue. Manual microdissection of the regions of interest was performed under a microscope, followed by genomic DNA extraction (Maxwell 16 FFPE Plus LEV DNA Purification Kit, Promega).
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5

Targeted Sequencing of Cancer Genes

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Genomic DNA was extracted from 40 μg of FFPE tumor tissue using a Maxwell 16 FFPE Plus LEV DNA Purification kit (Promega, Madison, WI, USA). Samples of 50–200 ng of extracted DNA were sheared to ~100–400 bp by sonication and were then subjected to end-repair, dA-addition, and ligation of indexed Illumina (San Diego, CA, USA) sequencing adaptors [11 (link)]. Sequencing libraries were hybridization-captured using a pool of >24 000 individually synthesized 5′-biotinylated DNA oligonucleotides (Integrated DNA Technologies, Coralville, IA, USA). These baits were designed to target ~1.5 MB of the human genome, including 4557 exons of 287 cancer-related genes, 47 introns of 19 genes frequently rearranged in cancer, and 3549 polymorphisms located throughout the genome. DNA sequencing was performed using the HiSeq instrument (Illumina) with 49 × 49 paired-end reads, targeting >500× unique median sequence coverage. Sequence data analysis and quality control measures are described in the Supplementary material, along with gene expression data analysis, support vector machine training with sequence and protein structural features, and ATM protein modeling.
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6

POFUT1 Copy Number Quantification

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Genomic DNA was extracted from normal and tumor tissues with Maxwell® 16 FFPE Plus LEV DNA Purification Kit and Maxwell® 16 IVD device (Promega, Madison, WI, USA) according to the manufacturer’s protocol. Genomic DNA concentration was determined using Quantifluor® ONE dsDNA system (Promega) and measured with Quantus™ Fluorometer (Promega) following manufacturer’s recommendations. Taqman™ copy number assay for POFUT1 (Hs02487189_cn) and RNAse P reference assays (4403326) were used with Gene Expression Master Mix (Applied Biosystems™, Thermo Fisher Scientific, Waltham, MA, USA), according to product literature. Twenty nanograms of gDNA were run in triplicate on QuantStudio 3 real-time PCR system (Applied Biosystem™). POFUT1 copy number was estimated using ∆∆Ct method [65 (link)].
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7

Tissue Extraction and Microarray Construction

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Additional hematoxylin and eosin stained sections of normal and tumor were prepared from the selected FFPE blocks and annotated by a GI pathologist (PK) for DNA/RNA extraction and TMA construction. For both DNA and RNA extractions, 6 × 5 micron blank sections were cut from each block and dewaxed in xylene and alcohol. Under direct visualization using magnifying glass annotated areas were scrapped off using a scalpel blade into 1.5 ml tubes. Maxwell 16 FFPE Plus LEV DNA Purification Kit (Promega, UK) was used for DNA extraction and RNeasy FFPE Kit (Qiagen, UK) for RNA extraction. Elution was in a volume of 50 ul. TMAs were constructed using 1 mm cores from tumors in triplicate and normals in duplicate on a Beecher MTA1 (Beecher Instruments Inc., WI), following international standards [25 (link)].
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8

FFPE Whole-Exome Sequencing Protocol

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Whole‐exome sequencing was performed on DNA extracted from formalin‐fixed paraffin‐embedded (FFPE) tumor samples (Maxwell® 16 FFPEPlus LEV DNA Purification Kit, Promega, Madison, WI, USA) in addition to freshly obtained peripheral blood or normal tissue. WES Libraries were prepared according to manufacturer’s protocol (SureSelect XT Human All Exon v5, Agilent, Santa Clara, CA, USA). Finally, libraries were sequenced in a HiSeq2500 (Illumina, San Diego, CA, USA), 2X100 Paired‐end. Reads were aligned against the hg19 reference genome.
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9

PCR-based HPV Genotyping Protocol

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HPV genotyping was performed as previously described [10 (link)]. In short, DNA was extracted from tumour-containing paraffin slides using the automated Maxwell® 16 FFPE Plus LEV DNA Purification Kit (Promega, Madison, USA) and amplified with biotinylated primers; PCR products were incubated with oligonucleotide-precoated strips using the HPV typing kit from AID diagnostics (Strassberg, Germany) according to the manufacturer’s protocol (Figure 1). The kit detects 15 different HPV genotypes (6, 11, 16, 18, 31, 33, 35, 39, 45, 51, 52, 53, 56, 58 and 59).

Representative results of HPV genotyping using a PCR-based approach. First lane shows a HPV-16-positive case, while in lane 2, no HPV DNA was detectable. Lane 3 shows detection of LR-HPV DNA that was later identified as HPV isoform 6. LR-HPV, low-risk human papillomavirus.

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10

Archival Tumor Tissue DNA Extraction

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DNA was isolated from archival tumor tissue using the Maxwell 16 FFPE Plus LEV DNA purification kit (Promega, Madison, WI, USA). DNA from whole blood (germline DNA) was isolated using the Maxwell 16 Blood DNA Purification kit (Promega) following the manufacturer’s instructions. The quantity of extracted genomic DNA was assessed by a fluorometric method with a Qubit device.
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