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Powering Epigenetics

The answers are out there, they’re just in a different dimension.

Powering Epigenetics

With only 1-2% of DNA in the human genome coding for proteins, 
Dovetail Genomics is providing access to the regulatory landscape hidden in the genome’s “dark matter”.

Gene Regulation

The mechanisms that regulate gene expression are central to the control of cell development and differentiation, maintenance of cell fate, and adaption to external stimuli.1 Dysregulation of gene expression is a well-documented contributor to the initiation and progression of cancer and other diseases.

Unprecedented View into Gene Expression Mechanisms

3D chromatin architecture is known to play a crucial role in maintaining proper gene expression as critical genomic regulatory elements, that can be kilobases away, are brought into close proximity with the gene promoter through chromatin looping events.2 This 3D genomics is an, as yet, largely unexplored area of epigenetic research. With the emergence of new and innovative techniques based on proximity ligation, such as the Dovetail® Micro-C Assay, it is now feasible for any lab with molecular biology experience and access to a next-generation sequencer to explore chromatin architecture on a genome-wide scale. These approaches enable hypothesis-free exploration of the 3D genome and the discovery of chromatin interactions that link genotype to phenotype. As an alternative to the whole genome approach, target enrichment panels, such as the Dovetail® Pan Promoter Enrichment Panel, enable a more focused approach, increasing signal-to-noise and reducing the overall sequencing burden. This approach is ideal for larger studies focused specifically on understanding chromatin interactions anchored at known genes.

1 Genome-Wide Analysis of Gene Expression. Chung DQ and Le Rock KG., Encyclopedia of Biological Chemistry (Second Edition), 2013.
2 An Overview of Methods for Reconstructing 3D Chromosome and Genome Structures from Hi-C Data. Oluwadare O, Highsmith M, and Cheng., Biol Proced Online, 2019.

Cancer Research

Epigenetic processes maintain gene expression patterns with a cell. When these processes are disrupted, malignant cellular transformation can occur.1 Recent studies in the field of cancer epigenetics have shown that global epigenetic abnormalities play just as big of a role as genetic mutations in the initiation and progression of cancer.2 Epigenetic aberrations have been reported in blood cancers like mixed lineage leukemia and acute myeloid leukemia (AML) as well as in solid cancers like breast and prostate cancer, leading to the emergence of epigenetic therapies, in combination with other anticancer therapies, as new approach to combating the disease.

New Understandings in Cancer Through 3D Genomics

High-resolution Hi-C experiments performed on prostate cancer and subclasses of gastrointestinal tumors have identified cancer-specific altered 3D genomic features (topologically associating domains (TADs) and enhancer-promoter loops), that act to drive disease progression.3,4 Such studies pave the way towards the development of novel epigenetic cancer therapeutics.

Dovetail® solutions are uniquely suited to unlocking the role of 3D epigenetics in cancer biology through their unsurpassed resolution, high signal-to-noise, and ease of use. Whether you are taking a whole genome approach with the Dovetail® Micro-C assay, adding the Dovetail® Pan Promoter Enrichment Panel to focus on interactions anchored at gene promoters, or taking a protein-centric view with the Dovetail® HiChIP MNase assay, addition of 3D genomics to your research will take your understanding of cancer into a whole new dimension.

1 Epigenetics in Cancer. Sharma S, Kelly TK, and Jones PA, Carcinogenesis, 2010.
2 Revisiting 3D Chromatin Architecture in Cancer Development and Progression. Feng Y and Pauklin S, Nucleic Acids Res., 2020.
3 A High-Resolution 3D Epigenomic Map Reveals Insights Into the Creation of the Prostate Cancer Transcriptome. Rhie SK, et al., Nat Comm, 2019 Sept.
4 Altered Chromosomal Topology Drives Oncogenic Programs in SDH-Deficient GISTs. Flavahan WA, et al., Nature, 2019.

Neurobiology Research

There has been a surge of interest in the role of epigenetics in neurobiology as we learn more about how it influences brain development and behavior.¹ Epigenetic mechanisms may also change in post-mitotic neurons in response to environmental stimuli like maternal care and social interactions, and play an important role in higher cognitive functions like learning and memory.² Moreover, dysregulated epigenetics correlates with neurodegenerative disorders and diseases like Alzheimer's disease, Huntington's disease, Parkinson's disease, epilepsy, and multiple sclerosis (MS).

3D Neuroplastic Maps Inform Neurological Disorders

Chromatin conformation studies in cortical neurons support epigenetic control of enhancers as key players in neurodegenerative diseases.3,4 Increased hypomethylation has been observed in the CpH sites in the prefrontal cortex of patients of individuals with severe Alzheimer's disease (AD) pathology compared to those with mild or moderate pathology. Hi-C studies have identified a distal interaction between hypomethylated enhancers in DSCAMLI and the BACE1 gene promoter which may explain the overexpression of BACE1 in AD pathophysiology. Similar studies will provide insights into other distal enhancer-promoter interactions involved in neurobiology.

Take your understanding of neuronal development and disorders into the next dimension with a whole genome high-resolution neuroplastic map using the Dovetail® Micro-C Assay.

¹Epigenetics, Brain Evolution and Behaviour. Keverne EB and Curley JP, Front Neuroendocrinol., 2008.

2 The Emerging Field of Epigenetics in Neurodegeneration and Neuroprotection. Hwang JY, Aromolaran KA, and Zukin RS, Nat Rev Neurosci, 2017.

3 Epigenetic Dysregulation of Enhancers in Neurons is Associated with Alzheimer's Disease Pathology and Cognitive Symptoms. Li P, et al., Nat Commun., 2019.

4 Epigenomic Analysis of Parkinson's Disease Neurons Identifies Tet2 Loss As Neuroprotective. Lee M, et al., Nat Neurosci., 2020.

Developmental Biology

The intricate molecular processes required to form tissues, organs, and entire organisms is a foundational area of study in the field of biology. By studying the genetic, molecular, and cellular mechanisms behind these transformative processes, developmental biologists contribute to our understanding of evolution, disease, and potential avenues for regenerative medicine.

3D Genomics Drives Cell Differentiation

Changes in 3D chromatin interactions during differentiation alter up to 36% of active and inactive compartments, indicating topology features are a major player in cell differentiation.² Comparing the 3D genome in IPSC and differentiated cells, such as neuronal stem cells, can help understand how the gain or loss in enhancer and promoter contacts, as well as changes in topological boundaries, commits a stem cell to a particular cell fate. These features, while contributing to our understanding of cell differentiation, likely have significant disease implications in degenerative diseases like Alzheimer's Disease.

Explore the genome wide 3D genome and its contribution to cell differentiation and development using our Dovetail® Micro-C assay or dissect the function of specific protein factors and chromatin marks using the Dovetial® HiChIP MNase assay.

1 Induced Pluripotent Stem Cells and Their Potential for Basic and Clinical Sciences. Ye Le, Swingen C, and Zhang J., Curr Cardiol Rev., 2013.

2 Chromatin Architecture Reorganization During Stem Cell Differentiation. Dixon et al., Nature, 2015.

Application
Application
Chromatin Topology
Whole Genome Ultra
High-Resolution Topology
Whole Genome Rapid
High-Resolution Topology
Protein Anchored Topology
Enhancer Promoter Interactions
Genetic Variation
Large Structural
Variant Detection
Genotyping
Haplotype Phasing
Genetic Genome Assembly
Genome Scafolding
Hybrid Capture Compatible
Dovetail Assay
Micro-C
TopoLink®
HiChIP
Pan Promoter
VariLink®
Omni-C®
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* Workflow also requires the Dovetail® Micro-C Kit
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