Novel Microscale Epigenomics Technology developed by GIS makes it possible to study the epigenome of rare cell populations and biopsy samples
Scientists at A*STARs Genome Institute of Singapore (GIS) have successfully developed a method to map the epigenome using 100 times fewer cells than was previously possible. The discovery, published in the journal Developmental Cell, means that it is now possible to study the epigenome of parts of the body with rare cell populations such as germ cells (which differentiate into the egg or sperm), and clinical biopsy samples (to advance the study, diagnosis and prevention of cancer).
This is an extremely important advancement since the proper regulation of the epigenome is essential for normal growth and health, while any abnormality in the regulation could be the cause of diseases such as cancers.
The genome, which refers to the complete set of DNA (deoxyribonucleic acid) in a cell, is identical in every cell of an individuals body. Chemical markers (also known as epigenetic markers) target the genome and influence which genes get turned on or off. It is the turning on or off of the genes that gives rise to the existence of different cells in the body, even though the genomes are identical. The epigenome refers to the record of these chemical changes that occur to the DNA.
Chromatin immunoprecipitation coupled to high-throughput sequencing (ChIP-Seq) is a commonly used method to study the epigenome of cells. In ChIP-Seq, DNA fragments that are associated with specific epigenetic marks are baited out, sequenced and mapped to a reference genome. However, the conventional method typically requires large quantities of cells, which makes it difficult to study rare cell populations of the body or in precious clinical biopsy samples.
This limitation prompted the GIS scientists to miniaturize the ChIP method such that it is now possible to map the epigenome using much fewer cells (1,000 to 100,000 cells). The conventional method required one million to 10 million cells.
The scientists further applied this technology on a small number of mouse germ cells, which are the embryonic precursors of the sperm and egg, and uncovered many interesting epigenomic features that provide insight into the biology of the germ cells.
GIS Executive Director Prof Ng Huck Hui said, Epigenomics is an exciting frontier for human biology research. While the sequence of human genome tells us the code for life, it doesnt tell us how this code is utilized. The mystique of the epigenome lies in the multiple forms it takes and the remarkable information that it harbours. At the Genome Institute of Singapore, we are investing efforts to develop new microscale technologies to analyse the epigenomes of human cells and tissues.
"The new ChIP-seq protocol allows us to map the epigenomes of very small populations of cells that are not accessible by conventional methods, said GIS Principal Investigator Dr Shyam Prabhakar. It's akin to having a more powerful microscope that provides a more fine-grained view of critical biological processes. We are very excited about using this new technique to peer into the inner workings of tiny groups of cells that have a massive impact on human health. For example, tumours in cancer patients are known to be heterogeneous at the fine scale - some sub-regions are relatively benign, while others are lethal. The new protocol will help us characterize this fine-scale variation, and hopefully lead to more precise treatments for cancer and a host of other diseases."
Read more here:
:: 11, Feb 2013 :: A*STAR’S GENOME INSTITUTE OF SINGAPORE DEVELOPS ADVANCED METHOD TO STUDY EPIGENOME OF CELLS ...
- The complete plastome sequences of invasive weed Parthenium hysterophorus: genome organization, evolutionary ... - Nature.com - February 18th, 2024 [February 18th, 2024]
- Multi-omic profiling reveals associations between the gut microbiome, host genome and transcriptome in patients with ... - Journal of Translational... - February 18th, 2024 [February 18th, 2024]
- Polymerase Chain Reaction (PCR) - National Human Genome Research Institute - February 18th, 2024 [February 18th, 2024]
- Genomic Time Machine Reveals Secrets of Human DNA - SciTechDaily - February 18th, 2024 [February 18th, 2024]
- 1 Million Unannotated Exons Discovered in the Human Genome - Technology Networks - February 18th, 2024 [February 18th, 2024]
- Hope for the night parrot: bird's full genome has been sequenced - Cosmos - February 18th, 2024 [February 18th, 2024]
- RevIT AAV Enhancer: Rev-up AAV genome production in upstream manufacturing - BioProcess Insider - February 18th, 2024 [February 18th, 2024]
- Multi-omics resources for the Australian southern stuttering frog (Mixophyes australis) reveal assorted antimicrobial ... - Nature.com - February 18th, 2024 [February 18th, 2024]
- Large-scale gene expression alterations introduced by structural variation drive morphotype diversification in Brassica ... - Nature.com - February 18th, 2024 [February 18th, 2024]
- Near-gapless and haplotype-resolved apple genomes provide insights into the genetic basis of rootstock-induced ... - Nature.com - February 18th, 2024 [February 18th, 2024]
- Secrets of Night Parrot unlocked after first genome sequenced - CSIRO - February 18th, 2024 [February 18th, 2024]
- CRISPR gene editing tool gets a revolutionary high-tech upgrade - Earth.com - February 18th, 2024 [February 18th, 2024]
- Ancient retroviruses played a key role in the evolution of vertebrate brains - EurekAlert - February 18th, 2024 [February 18th, 2024]
- Natural selection and genetic diversity maintenance in a parasitic wasp during continuous biological control application - Nature.com - February 18th, 2024 [February 18th, 2024]
- Hopes elusive parrots genome will provide answers - news.com.au - February 18th, 2024 [February 18th, 2024]
- MicroRNA is the master regulator of the genome researchers are learning how to treat disease by harnessing the ... - The Conversation - November 30th, 2023 [November 30th, 2023]
- "Ground-Breaking" Release of World's Largest Whole Genome Resource - Inside Precision Medicine - November 30th, 2023 [November 30th, 2023]
- Pangenome analysis reveals genomic variations associated with domestication traits in broomcorn millet - Nature.com - November 30th, 2023 [November 30th, 2023]
- Global genetic diversity, introgression, and evolutionary adaptation of indicine cattle revealed by whole genome ... - Nature.com - November 30th, 2023 [November 30th, 2023]
- Genome characteristics of atypical porcine pestivirus from abortion cases in Shandong Province, China - Virology Journal - Virology Journal - November 30th, 2023 [November 30th, 2023]
- Correcting modification-mediated errors in nanopore sequencing by nucleotide demodification and reference-based ... - Nature.com - November 30th, 2023 [November 30th, 2023]
- CRISPR-Based "Genome Shredding" Technique Shows Promise in Treating Glioblastoma - Inside Precision Medicine - November 30th, 2023 [November 30th, 2023]
- Genome wide analysis revealed conserved domains involved in the effector discrimination of bacterial type VI secretion ... - Nature.com - November 30th, 2023 [November 30th, 2023]
- TRISH to investigate the effects of spaceflight on the human genome, central nervous system - Odessa American - November 30th, 2023 [November 30th, 2023]
- The venom preceded the stinger: Genomic studies shed light on the origins of bee venom - EurekAlert - November 30th, 2023 [November 30th, 2023]
- Integrating genomic and multiomic data for Angelica sinensis provides insights into the evolution and biosynthesis of ... - Nature.com - November 30th, 2023 [November 30th, 2023]
- Genetic diversity and ancestry of the Khmuic-speaking ethnic groups ... - Nature.com - September 21st, 2023 [September 21st, 2023]
- Researchers to Apply Genome Analysis to Childhood Cancers; Goal ... - The Japan News - September 21st, 2023 [September 21st, 2023]
- How Bats' Genomes May Help Them Avoid Cancer and Survive ... - Technology Networks - September 21st, 2023 [September 21st, 2023]
- Longitudinal genomic surveillance of carriage and transmission of ... - Nature.com - September 21st, 2023 [September 21st, 2023]
- Whole genomes from bacteria collected at diagnostic units around ... - Nature.com - September 21st, 2023 [September 21st, 2023]
- Genome-wide identification of lncRNA & mRNA for T2DM | PGPM - Dove Medical Press - September 21st, 2023 [September 21st, 2023]
- Tasmanian tiger RNA is first to be recovered from an extinct animal - Nature.com - September 21st, 2023 [September 21st, 2023]
- Loneliness and depression: bidirectional mendelian randomization ... - Nature.com - September 21st, 2023 [September 21st, 2023]
- Rome Therapeutics adds $72 million to Series B round to harness ... - OutSourcing-Pharma.com - September 21st, 2023 [September 21st, 2023]
- Mystery of 'living fossil' tree frozen in time for 66 million years finally ... - Livescience.com - September 21st, 2023 [September 21st, 2023]
- Why the human genome could be healthcares holy grail - Yahoo Finance - May 4th, 2023 [May 4th, 2023]
- Scientists Compare Genomes of 240 Mammals to Understand Human DNA - The New York Times - May 4th, 2023 [May 4th, 2023]
- Genomes From 240 Mammalian Species Help Explain 100 Years Of Evolution And Human Disease - ABP Live - May 4th, 2023 [May 4th, 2023]
- 'Deletions' from the human genome may be what made us human - Yale News - May 4th, 2023 [May 4th, 2023]
- GeneDx Adds Buccal Swab as Non-Invasive Whole Genome ... - GlobeNewswire - May 4th, 2023 [May 4th, 2023]
- Whole-genome sequencing used to track down genes behind familial glioma - Medical Xpress - May 4th, 2023 [May 4th, 2023]
- Wiggly proteins guard the genome: Dynamic network in the pores of ... - Science Daily - May 4th, 2023 [May 4th, 2023]
- Genome-Wide Splicing Quantitative Expression Locus Analysis ... - Cancer Discovery - May 4th, 2023 [May 4th, 2023]
- Digital Genome Market is expand at a CAGR of 8.6% to reach USD ... - Digital Journal - May 4th, 2023 [May 4th, 2023]
- High School Students Learn the Basics of Base Editing to Cure GFP ... - University of California San Diego - May 4th, 2023 [May 4th, 2023]
- Genomic researchers gain access to CSIRO's AI-powered data ... - Microsoft - May 4th, 2023 [May 4th, 2023]
- Archaic hominin traits through the splicing lens - Nature.com - May 4th, 2023 [May 4th, 2023]
- Critical bug in genome sequencing device scores '10' on CVSS ratings - SC Media - May 4th, 2023 [May 4th, 2023]
- Novel Genomic Approach Ensures Better Diagnosis of Hereditary ... - Technology Networks - May 4th, 2023 [May 4th, 2023]
- Intellia Therapeutics: Leading the Way in Revolutionary Genome ... - Best Stocks - May 4th, 2023 [May 4th, 2023]
- Visual tracking of viral infection dynamics reveals the synergistic ... - Nature.com - May 4th, 2023 [May 4th, 2023]
- Genome | Genome LLC | United States - March 31st, 2023 [March 31st, 2023]
- Belarus: EU and WHO deliver equipment for research of genomes of infectious disease agents - EIN News - February 24th, 2023 [February 24th, 2023]
- Gene vs. genome: Definition, function, and impact - January 30th, 2023 [January 30th, 2023]
- Big cog in the wheel: As Covid worries reappear, Insacogs genome sequencing ability must be aided by govts - Times of India - December 25th, 2022 [December 25th, 2022]
- CapitalGainsReport Sector Spotlight: Healthcare Penny Stocks On The Move (ARDX, WHSI, BNGO) - Marketscreener.com - November 25th, 2022 [November 25th, 2022]
- Genome Insight and Kun-hee Lee Child Cancer & Rare Disease Project Team of SNUH (Seoul National University Hospital) Made an Agreement About a... - November 23rd, 2022 [November 23rd, 2022]
- Genome-wide association study reveals distinct genetic associations related to leaf hair density in two lineages of wheat-wild relative Aegilops... - October 19th, 2022 [October 19th, 2022]
- The Global Genomics Market to Exhibit Growth at a CAGR of 16.90% During the Forecast Period (20222027) | DelveInsight - Yahoo Finance - October 19th, 2022 [October 19th, 2022]
- Illumina and GenoScreen Partner to Expand Access to Genomic Testing for Multidrug-Resistant Tuberculosis - PR Newswire - October 19th, 2022 [October 19th, 2022]
- Superresolution Method Poised to Better Gene Function Understanding - Photonics.com - October 19th, 2022 [October 19th, 2022]
- Genome-centric analysis of short and long read metagenomes reveals uncharacterized microbiome diversity in Southeast Asians - Nature.com - October 15th, 2022 [October 15th, 2022]
- How a New Battery Data Genome Project Will Use Vast Amounts of Information to Build Better EVs - InsideClimate News - October 15th, 2022 [October 15th, 2022]
- Scientists Reconstruct the Genome of the 180-Million-Year-Old Common Ancestor of All Mammals - SciTechDaily - October 15th, 2022 [October 15th, 2022]
- Combining OSMAC, metabolomic and genomic methods for the production and annotation of halogenated azaphilones and ilicicolins in termite symbiotic... - October 15th, 2022 [October 15th, 2022]
- Concerted expansion and contraction of immune receptor gene repertoires in plant genomes - Nature.com - October 15th, 2022 [October 15th, 2022]
- Uncovering the Full Variant Continuum with Pioneering Solutions from Bionano - Inside Precision Medicine - October 15th, 2022 [October 15th, 2022]
- Metagenomic analysis of viromes in tissues of wild Qinghai vole from the eastern Tibetan Plateau | Scientific Reports - Nature.com - October 15th, 2022 [October 15th, 2022]
- Research Assistant in Molecular and Genome Editing Therapeutics job with KINGS COLLEGE LONDON | 311876 - Times Higher Education - October 15th, 2022 [October 15th, 2022]
- Lessons learnt from COVID-19 shed light on future pandemic preparedness - The Peter Doherty Institute for Infection and Immunity - October 15th, 2022 [October 15th, 2022]
- From Neanderthal genome to Nobel prize: meet geneticist Svante Pbo - Nature.com - October 8th, 2022 [October 8th, 2022]
- Revealing the genome organization of the earliest common ancestor of all mammals - Tech Explorist - October 8th, 2022 [October 8th, 2022]
- Mitochondrial DNA Is Working Its Way Into the Human Genome - Technology Networks - October 8th, 2022 [October 8th, 2022]
- Animated Map: Where to Find Water on Mars - Visual Capitalist - October 8th, 2022 [October 8th, 2022]
- Reconstruction of The First Mammal's Genome Suggests It Had 38 Chromosomes - ScienceAlert - October 6th, 2022 [October 6th, 2022]
- Genomic Science Breakthroughs Are Happening Faster Than Ever Thanks to HPC - CIO - October 6th, 2022 [October 6th, 2022]
- Genome Of Ancient Humans Is The Winning Field Of 2022's Nobel Prize in Medicine - IFLScience - October 6th, 2022 [October 6th, 2022]
- ASU professor to study new genome editing tools with NIH Innovator Award - ASU News Now - October 6th, 2022 [October 6th, 2022]
- New R&D norms to fast-track research on genome-edited crops - The Financial Express - October 6th, 2022 [October 6th, 2022]