MONDAY, Dec. 27, 2021 (HealthDay News) -- Genes in human embryos become active far sooner than once thought, according to a study that provides fresh insight into development.
Contrary to the old view that gene activity begins two to three days after conception when the embryo is made up of four to eight cells, researchers found that it actually begins at the one-cell stage.
One-cell embryos have hundreds of active genes, but previous techniques have not been sensitive enough to detect that small amount of activity. State-of-the art RNA-sequencing used in this study could do so, according to the British authors.
"This is the first good look at the beginning of a biological process that we all go through -- the transit through the one-cell embryo stage," said study co-leader Anthony Perry, a professor of biology and biochemistry at the University of Bath.
One-cell embryos without gene activity don't continue to develop, so gene activity is "a fundamental step," Perry noted in a university news release.
His team also found that many genes activated in one-cell embryos remain switched on until the four-to-eight cell stage. At that point, they are switched off.
"It looks as if there is a sort of genetic shift-work in early embryos: The first shift starts soon after fertilization, in one-cell embryos, and a second shift takes over at the eight-cell stage," Perry said.
Some of the activated genes in one-cell embryos might be expected to play roles in early embryos, but the roles of other activated genes are unknown and could point to embryonic events not yet understood, according to the findings. The study was published Dec. 21 in the journal Cell Stem Cell.
"Although the trigger for activation is thought to come from the egg, it's not known how," Perry said. "Now we know which genes are involved, we can locate their addresses and use molecular techniques to find out."
The natural, healthy role of some gene-activation factors that go awry and cause cancer may be to awaken genes in one-cell embryos, researchers suggested. If that proves true, the study could boost understanding of how cancer begins and lead to new ways to prevent and diagnose it.
The study may also provide new insight into inherited traits, such as obesity. It's not known how such traits are passed from parents to children, but altered gene activation after fertilization is a possible mechanism, according to the researchers.
"If true, we should be able to see this altered gene activation signature at the one-cell stage," said study co-leader Giles Yeo, principal research associate at the University of Cambridge.
More information
The U.S. Office on Women's Health outlines the stages of pregnancy.
SOURCE: University of Bath, news release, Dec. 21, 2021
Read the original here:
Genes 'Switched On' Much Earlier in Human Embryos Than Thought - Livermore Independent
- Shinobi strikes deal with electronics powerhouse Panasonic to create new cell therapy manufacturing platform - FiercePharma - April 19th, 2024
- The Stem Cells Market expected to grow at the value of USD 28.1 Billion by 2030 with a 10.48% CAGR. - WhaTech - April 19th, 2024
- Scientists produce in vitro model of cell differentiation during early facial development - Phys.org - April 19th, 2024
- Somite: AI-Based Stem Cell Therapy Company Closes $5.3 Million In Funding - Pulse 2.0 - April 19th, 2024
- Paralyzed man who can walk again shows potential benefit of stem cell therapy - ABC News - April 5th, 2024
- Stem Cells Market Innovations Investigated by Industry Overview and Global Forecast - WhaTech - April 5th, 2024
- New tool provides researchers with improved understanding of stem cell aging in the brain - University of Wisconsin-Madison - April 1st, 2024
- The PTM profiling of CTCF reveals the regulation of 3D chromatin structure by O-GlcNAcylation - Nature.com - April 1st, 2024
- Signatures of Autofluorescence Used To Study Stem Cells Aging in the Brain - Technology Networks - March 30th, 2024
- Two decades of embryonic stem cells: a historical overview - March 28th, 2024
- Researchers at Phoenix Children's First in the World to Produce Mouse Lungs in Rats - The Malaysian Reserve - March 26th, 2024
- Unlocking the mysteries of early human development through blastoid models - News-Medical.Net - March 24th, 2024
- Unlocking the Secrets of Aging: Researchers Reveal Key to Intestinal Balance - SciTechDaily - March 17th, 2024
- Human stem-cell-based therapy for Parkinson's disease proven safe PET - BioNews - March 13th, 2024
- Exploring the inner workings of stem cells: When location changes the message - Phys.org - March 9th, 2024
- Confronting IVF: Human Embryos Are Persons With a Right to Life - Walter Bradley Center for Natural and Artificial Intelligence - March 7th, 2024
- When Location Changes the Message - UConn Today - University of Connecticut - March 7th, 2024
- Distinct pathways drive anterior hypoblast specification in the implanting human embryo - Nature.com - March 6th, 2024
- In light of the Alabama court ruling, a look at the science of IVF : Short Wave - NPR - March 3rd, 2024
- The weird way Alabamas embryo ruling takes on artificial wombs - MIT Technology Review - February 25th, 2024
- Alabama's biggest hospital to suspend transfer of embryos after court ruling - ABC News - February 24th, 2024
- Stem Cells: FAQs Answered for Patients and Caregivers - Corporate Wellness Magazine - February 22nd, 2024
- Charles River Collaborates with Pluristyx, Expanding its Portfolio of Human Pluripotent Stem Cells - Business Wire - February 22nd, 2024
- Breakthrough Stem Cell Treatments for Stroke Recovery: What You Need to Know - Medical Tourism Magazine - February 20th, 2024
- Global Cell Isolation Market Size To Worth USD 13.4 Billion By 2033 | CAGR of 12.5% - Yahoo Finance - February 20th, 2024
- The Mechanism of Positional Cues in Embryonic Development and Signaling Molecules in Cell Fate - Medriva - February 18th, 2024
- Regeneration of the Retina Using Pluripotent Stem Cells: A Comprehensive Review - Cureus - February 5th, 2024
- CRISPR/Cas9-mediated deletion of a GA-repeat in human GPM6B leads to disruption of neural cell differentiation from ... - Nature.com - January 29th, 2024
- Global Human Embryonic Stem Cell Market Analysis 2024-2034: A Deep Dive into Applications, End-users, and ... - GlobeNewswire - January 26th, 2024
- No, Rep. Steve Scalise Didn't Vote Against Stem Cell Research From Which He Is Now Benefiting - Yahoo News - January 14th, 2024
- Clinical applications of stem cell-derived exosomes | Signal Transduction and Targeted Therapy - Nature.com - January 12th, 2024
- How Stem Cell Embryo Models Won Method of the Year - Technology Networks - January 12th, 2024
- Changing the public perception of human embryology - ESHRE - January 11th, 2024
- How the Human Body Regenerates New Cells Every Year - Laughing Squid - January 4th, 2024
- Lab-grown models of embryos increasingly resemble the real thing | Mint - Mint - January 4th, 2024
- Singapore should ban reproductive applications of synthetic human embryos - BioEdge - January 4th, 2024
- Machine learning-based estimation of spatial gene expression pattern during ESC-derived retinal organoid ... - Nature.com - December 21st, 2023
- The development of embryos may be less shaped by genes than we thought - New Scientist - December 21st, 2023
- Embryonic stem cell - Wikipedia - December 13th, 2023
- Researchers discover a mechanism that controls the identity of stem cells - Phys.org - December 9th, 2023
- 'Fascinating and completely unexpected': Tiny robots fix neurons - FierceBiotech - December 5th, 2023
- Establishment and characterization of matched immortalized human ... - Nature.com - December 5th, 2023
- Proteomic insights into the associations between obesity, lifestyle ... - BMC Medicine - December 5th, 2023
- New therapy can treat rare and hereditary diseases - ScienceNorway - December 5th, 2023
- Scientists Still Can't Be Trusted on Gene Editing - Progressive.org - December 5th, 2023
- Harvard Apparatus Regenerative Technology and Renowned ... - Yahoo Finance - December 5th, 2023
- 4.4 Million Funding Injection Fuels World-Class Bioscience Research Programme - India Education Diary - December 3rd, 2023
- A two-kinesin mechanism controls neurogenesis in the developing ... - Nature.com - December 3rd, 2023
- What happens when nature and cities collide - CNN - December 3rd, 2023
- Pro-Life This Week: December 1, 2023 | ALL - All.org - December 3rd, 2023
- A look at the international race to create human eggs and sperm in ... - NPR - December 1st, 2023
- Synthetic genetic circuits to uncover the OCT4 trajectories of ... - Science - December 1st, 2023
- Why the Novo Nordisk Foundation is betting big on stem cells - pharmaphorum - November 29th, 2023
- Charity Watchlist Helps Donors Ensure Their Year-End Gifts Don't ... - All.org - November 29th, 2023
- A green glowing monkey has been created in China. What were the ... - Genetic Literacy Project - November 29th, 2023
- Fetal Bovine Serum Market to reach USD 1.26 Bn by 2029, emerging at a CAGR of 5.3 percent according to a ne... - WhaTech Technology and Markets News - November 29th, 2023
- Implications of Gene Therapy in Dentistry and Periodontics: A ... - Cureus - November 27th, 2023
- Study shows how to treat hereditary, rare diseases - ETHealthWorld - November 27th, 2023
- Drugs identified that may reverse brain fog caused by COVID-19 - New Atlas - November 27th, 2023
- The genes that made us truly human may also make us ill - BBC.com - November 25th, 2023
- Therapy to treat rare, hereditary diseases: Study - Hindustan Times - November 25th, 2023
- How the growth of a giant single cell is intertwined with daily self-rhythms - Phys.org - November 25th, 2023
- On this day: Mahmoud Abbas becomes leader of Fatah in 2004 - In-Cyprus - November 25th, 2023
- Evaluation of A-ring hydroxymethylene-amino- triterpenoids as ... - Nature.com - November 25th, 2023
- Disruption of the autism gene and chromatin regulator KDM5A alters ... - Science - November 23rd, 2023
- Scientists Created a Monkey With Two Different Sets of DNA - Smithsonian Magazine - November 23rd, 2023
- Genomic tug of war could boost cancer therapy - Science Daily - November 23rd, 2023
- What are stem cells? Throw light on various types of stem cells and ... - Insights IAS - November 23rd, 2023
- The Paul G. Allen Family Foundation awards $10.5 million to new ... - EurekAlert - November 23rd, 2023
- Daily briefing: Why these PhD scientists went into teaching - Nature.com - November 23rd, 2023
- Innovative Therapy Targets Rare, Hereditary Diseases - Mirage News - November 23rd, 2023
- Scientists uncover "genomic tug of war" that influences ... - News-Medical.Net - November 21st, 2023
- DOT1L is a barrier to histone acetylation during reprogramming to ... - Science - November 21st, 2023
- Tumor microenvironment composition & related therapy in HCC | JHC - Dove Medical Press - November 21st, 2023
- T-Therapeutics raises $59M in series A for T-cell receptors - BioWorld Online - November 19th, 2023
- A $3bn bet on finding the fountain of youth | Mint - Mint - November 19th, 2023
- A better way to study Parkinson's disease in the lab could lead to ... - EurekAlert - November 17th, 2023
- Global Stem Cell Therapy Market to Reach USD 928.6 Million by ... - GlobeNewswire - November 17th, 2023
- MKL/SRF and Bcl6 mutual transcriptional repression safeguards the ... - Science - November 17th, 2023
- METTL1-Related Genes and Immune Characteristics in SLE | JIR - Dove Medical Press - November 17th, 2023
Recent Comments