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ThruPLEX DNA-seq citations
Our collaborators and customers are continually making scientific breakthroughs. Here are the latest published results obtained using ThruPLEX DNA-seq kits for ChIP-seq and for microbiome analysis.
Mouliere, F. et al. Integrated clonal analysis reveals circulating tumor DNA in urine and plasma of glioma patients. bioRxiv 758441 (2019).
This study used the ThruPLEX Tag-Seq Kit to sequence cell-free DNA—a challenging sample type due to its low abundance in bodily fluids—from glioma patients. Researchers were able to detect tumor-derived DNA in plasma (10/12, 83%), and urine (8/11, 72%) samples from the majority of glioma patients (7/8, 87.5%). These findings suggest that there may be no additional benefit to traditional CSF analyses when such sensitive detection methods are used. Read now »
Mouliere, F. et al. Detection of cell‐free DNA fragmentation and copy number alterations in cerebrospinal fluid from glioma patients. EMBO 12, e9323 (2018).
The assay described in this article helps to solve a significant problem: sequencing cost. The sequencing depth requirements are much lower for copy number variation and DNA fragmentation as compared to mutations. In other words, the authors could reliably get candidate samples from low-cost screening, and then follow up with deeper and more costly sequencing only on the patients with a high likelihood of disease. This approach may be applied to other diseases and forms of cancer. Read now »
Smith, C. G. et al. Comprehensive characterisation of cell-free tumour DNA in plasma and urine of patients with renal tumours. bioRxiv 758003 (2019).
In this article, researchers used ThruPLEX DNA-seq and Tag-seq kits to determine the heterogeneity and potential clinical applications of ctDNA in plasma and urine of 90 renal tumor patient samples. The authors concluded that, while renal cell cancer produces low levels of ctDNA, these DNA-seq approaches may have clinical utility. Read now »
ChIP-seq (chromatin immunoprecipitation sequencing)
Baejen, C. et al. Genome-wide analysis of RNA Polymerase II termination at protein-coding. Genes. Mol. Cell 66, 1–12 (2017).
This paper used ChIP-seq, ChIP-qPCR, and other functional genomic methods to understand how RNA Pol II termination occurs in yeast. The ThruPLEX DNA-Seq Kit was used to generate libraries for ChIP-seq. The author showed that the 3′ transition in budding yeast requires the Pol II elongation factor Spt5, and that polymerase II release from DNA requires the Rat1 exonuclease. Read now »
Liu, Y. et al. Transcriptional landscape of the human cell cycle. PNAS 114, 3473–78 (2017).
This paper investigated the transcriptional landscape across the cell cycles using a combination of ChIP-seq, DNase-seq, RNA-seq, and GRO-seq. ThruPLEX DNA-Seq Kit was used to prepare libraries for ChIP-seq and DNase-seq. Using the MCF-7 breast cancer cell line as a model, the authors revealed lag between transcription and steady-state RNA expression at the cell-cycle level. Other findings highlighted the importance of transcriptional and epigenetic dynamics during cell-cycle progression. Read now »
Maatouk, D. M. et al. Genome-wide identification of regulatory elements in Sertoli cells. Development 144, 720–30 (2017).
This study used ChIP-seq, DNaseI-seq, and RNA-seq to identify regulatory elements in mouse Sertoli cells during sex determination. ThruPLEX DNA-Seq Kit was used to prepare ChIP-seq libraries from FACS-sorted mouse Sertoli cells. By overlapping DNaseI-seq peaks with the chromatin landscape for H3K27ac, the authors were able to identify enhancers active only in Sertoli cells during the early stages of sex determination. Read now »
Cejas, P. et al. Chromatin immunoprecipitation from fixed clinical tissues reveals tumor-specific enhancer profiles. Nat Med. 22, 685–691 (2016).
This paper describes a new method called fixed-tissue chromatin immunoprecipitation sequencing (FiT-seq) for reliable extraction of soluble chromatin from FFPE tissue samples for accurate detection of histone marks. ThruPLEX DNA-Seq Kit was used to generate FiT-seq libraries from FFPE specimens and ChIP-seq libraries fresh frozen samples, and data from the two sample types were demonstrated to be concordant with each other. The study shows that FiT-seq allows tumor-specific enhancers and super-enhancers to be elucidated and correlated with known oncogenic drivers to enhance understanding of how chromatin states affect gene regulation. Read now »
Hojo, H. et al. Sp7/Osterix is restricted to bone-forming vertebrates where it acts as a Dlx co-factor in osteoblast specification. Dev. Cell 37, 1–16 (2016).
This study used ChIP-seq and RNA-seq to analyze the role of the transcription factor Sp7/Osterix during bone formation in mice. The authors generated a transgenic mouse line in which a biotin motif and three FLAG epitopes were attached to the C-terminus of the Sp7 protein to enable the binding sites of Sp7 could be identified by ChIP. ThruPLEX DNA-Seq Kit was used to generate ChIP-seq libraries to identify osteoblast enhancers. The authors concluded that the appearance of Sp7 within the Sp family was likely to have played a key role in the emergence of bone-forming osteoblasts during vertebrate evolution. Read now »
Luizon, M. R. et al. Genomic characterization of metformin hepatic response. PLOS Genet. 12, e1006449 (2016).
This study identified genes and regulatory elements involved in metformin hepatic response in human hepatocytes using ChIP-seq and RNA-seq. ChIP-seq libraries were prepared with ThruPLEX DNA-Seq Kit. The paper provided a comprehensive genome-wide understanding of metformin-dependent response in human hepatocytes and identified potential candidates for the treatment of type 2 diabetes. Read now »
Roy, N. et al. PDX1 dynamically regulates pancreatic ductal adenocarcinoma initiation and maintenance. Genes Dev. 30, 2669–83 (2016).
This study used ChIP-seq, RNA-seq, and BrU-seq to uncover the diverse functions of PDX1 at different stages of pancreatic ductal adenocarcinoma (PDA). ThruPLEX DNA-Seq Kit was used to prepare ChIP-seq libraries from PDX1-immunoprecipitated DNA. The authors reported distinct roles of PDX1 at different stages of PDA, suggesting that therapeutic approaches against this potential target need to account for its changing functions at different stages of carcinogenesis. Read now »
Si, S. et al. Loss of Pcgf5 affects global H2A monoubiquitination but not the function of hematopoietic stem and progenitor cells. PLOS One 11, e0154561 (2016).
This paper analyzed the role of the Polycomb-group (PcG) RING finger protein Pcgf5 in hematopoietic stem and progenitor cells (HSPCs) using ChIP-seq and RNA-seq. Libraries for ChIP-seq were generated using ThruPLEX DNA-Seq Kit. ChIP-seq analysis confirmed the reduction in H2AK119ub1 levels observed in pcgf5-deficient HSPCs but revealed no significant association with gene expression levels. The authors concluded that Pcgf5 regulates histone H2AK119 monoubiquitination in vivo, but its role in hematopoiesis is marginal. Read now »
Spangle, J. M. et al. PI3K/AKT signaling regulates H3K4 methylation in breast cancer. Cell Rep. 15, 1–13 (2016).
Using ChIP-seq and RNA-seq, this study investigated the role of PI3K/AKT pathway activation in preclinical models of breast cancer. ChIP-seq libraries were prepared using ThruPLEX DNA-Seq Kit to measure H3K4me3 and KDM5A subcellular localization. The authors demonstrated the importance of the PI3K/AKT signaling pathway in regulating the epigenetic landscape in breast malignancies, and more specifically that the expression of cell-cycle genes regulated by the AKT/KDM5A complex is associated with advanced-stage breast cancer. Read now »
Warrick, J. I. et al. FOXA1, GATA3 and PPARγ cooperate to drive luminal subtype in bladder cancer: A molecular analysis of established human cell lines. Sci. Reps. 6, 38531 (2016).
This paper used ChIP-seq and RNA-seq to identify a set of human cell lines suitable for the study of molecular subtypes in bladder cancer. ChIP-seq libraries were prepared with ThruPLEX DNA-Seq Kit. The study shows that the combined overexpression of PPARγ, GATA3, and FOXA1 contributes to the transdifferentiation of bladder cancer cells from a more aggressive basal phenotype to a less invasive luminal phenotype. Read now »
Hugerth, L. W. et al. Metagenome-assembled genomes uncover a global brackish microbiome. Genome Biol. 16, 279 (2015).
The authors reconstructed a large number of bacterioplankton genomes from a metagenomic time series from the Baltic Sea. Water samples were collected on 37 occasions between March and December of 2012, at 2-m depth, at the LMO, 10 km off the coast of Öland (Sweden), using a Ruttner sampler. All samples are referred to in the text and figures by their sampling date, in the format yymmdd. Samples were filtered successively at 3.0 μm and 0.22 μm. The 0.22-μm fraction was used for DNA extraction. The procedures for DNA extraction, phytoplankton counts, and measurement of chlorophyll a and other nutrients are described. DNA (2–10 ng) from each sample was prepared with the ThruPLEX DNA-Seq Kit according to the instructions of the manufacturer. Cleaning steps were performed with MyOne carboxylic acid-coated superparamagnetic beads (Invitrogen). Finished libraries were sequenced in SciLifeLab/NGI (Solna, Sweden) on an Illumina HiSeq® 2500. On average, 31.9 million paired-end reads of 2 × 100 bp were generated.
Katrine, J. Antimicrobial resistance in selected environments in Norway: occurrence of antimicrobial resistant bacteria (ARB) and antimicrobial resistant genes (ARG) associated with wastewater treatment plants (WWTPs). (2017). www.genok.no
The authors investigated the prevalence of antibiotic-resistant bacteria and antibiotic-resistant genes in wastewater treatment plants in two locations in Norway using culture-based methods with molecular techniques and metagenomics studies. The authors aimed to provide a better understanding of the identification of the relationships between antimicrobial resistance (AMR) in the environment and the spread of AMR, not only from clinical settings to the environment but also from the environment to human and animal pathogens. Samples were immediately frozen to –20°C and kept frozen until DNA extraction. DNA samples were sent to the Norwegian Sequencing Centre (NSC) at the University of Oslo for metagenomic library preparation using the ThruPLEX DNA-Seq Kit and sequencing on an Illumina MiSeq® PE300 platform.
Wu, X. et al. Potential for hydrogen-oxidizing chemolithoautotrophic and diazotrophic populations to initiate biofilm formation in oligotrophic, deep terrestrial subsurface waters. Microbiome 5, 37 (2017).
In this study, flow cells were attached to boreholes containing either modern marine or old saline waters of different origins and degrees of isolation from the light-driven surface of the earth. Using 16S rRNA gene sequencing, the authors showed that planktonic and attached populations were dissimilar and that gene frequencies in the metagenomes suggested that hydrogen-fed, carbon dioxide- and nitrogen-fixing populations were responsible for biofilm formation across the two aquifers. Metagenome libraries of extracted DNA from garnet grains were prepared using the ThruPLEX DNA-Seq Kit with 96 dual indexes.
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