Embryonic Development News and Research

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Embryonic development or embryogenesis is the process by which the embryo is formed and develops. It starts with the fertilization of the ovum, egg, which, after fertilization, is then called a zygote. The zygote undergoes rapid mitotic divisions, the formation of two exact genetic replicates of the original cell, with no significant growth (a process known as cleavage) and cellular differentiation, leading to development of an embryo.

New real-time imaging technique holds great potential in shaping assisted reproduction procedures

Researchers at A*STAR's Institute of Molecular and Cell Biology (IMCB) have developed advanced microscopy technologies to monitor embryo development in real time, revealing how mammalian cells differentiate during the earliest stages of embryonic life.

23 May 2016

Two-way communication between cancer cells may be key to tumor metastasis

Two-way communication between cancer cells appears to be key to their becoming motile, clustering and spreading through metastasis, according to Rice University scientists.

21 May 2016

Oct4 gene may play significant role in preventing underlying cause of heart attacks, strokes

A gene that scientific dogma insists is inactive in adults actually plays a vital role in preventing the underlying cause of most heart attacks and strokes, researchers at the University of Virginia School of Medicine have determined.

18 May 2016

Targeting ERK and compensatory pathways with drug inhibitors halts colorectal cancer growth

While investigating a potential therapeutic target for the ERK1 and 2 pathway, a widely expressed signaling molecule known to drive cancer growth in one third of patients with colorectal cancer, University of California San Diego School of Medicine researchers found that an alternative pathway immediately emerges when ERK1/2 is halted, thus allowing tumor cell proliferation to continue.

18 May 2016

Stimulating stem cells to make special type of cartilage may potentially heal broken bones

Stem cells could one day be stimulated to make a special type of cartilage to help repair large, hard-to-heal bone fractures - a potential boon for doctors treating big-money athletes, USC researchers say.

12 May 2016

Better understanding of mechanisms linked to human heart valve disease

A cell-to-cell signaling network that serves as a developmental timer could provide a framework for better understanding the mechanisms underlying human heart valve disease, say University of Oregon scientists.

6 May 2016

New research shows molecular, cellular processes in human embroyo development

Despite significant biomedical advances in recent decades, the very earliest events of human development¬--those that occur during a critical window just after fertilization--have remained an unobservable mystery, until now.

5 May 2016

Scientists develop CRISPRainbow to study genome structure in real time

CRISPRainbow, a new technology using CRISPR/Cas9 developed by scientists at UMass Medical School, allows researchers to tag and track up to seven different genomic locations in live cells. This labeling system, details of which were published in Nature Biotechnology, will be an invaluable tool for studying the structure of the genome in real time.

21 Apr 2016

Distribution of c-Myc protein during asymmetric cell division influences fate, roles of activated T cells

The fates of immune cells can be decided at the initial division of a cell. Researchers at St. Jude Children's Research Hospital have discovered that the production of daughter cells with different roles in the immune system is driven by the lopsided distribution of the signaling protein c-Myc. Nudging c-Myc in one direction or the other could make vaccines more effective or advance immunotherapies for cancer treatment. The research appears online today in the scientific journal Nature.

12 Apr 2016

Scientists successfully turn off misbehaving protein that fuels growth of triple-negative breast cancer

Working with human breast cancer cells, a team of scientists from Ann & Robert H. Lurie Children's Hospital of Chicago have successfully turned off a misbehaving protein that fuels the growth of a particularly aggressive, drug-resistant form of the disease known as triple-negative breast cancer.

5 Apr 2016

Study may help identify unborn children at higher risk for birth defects

Researchers at the University of Toronto have discovered a novel function performed by the breast cancer 1 protein (BRCA1), which regulates DNA repair. Well known for the role it plays in breast and ovarian cancer, this study revealed that the BRCA1 protein actually plays a much broader biological role, particularly in protecting the developing embryo from the damaging effects of reactive oxygen species (ROS).

1 Apr 2016

Low-oxygen conditions spur growth of breast cancer stem cells

Working with human breast cancer cells and mice, scientists at The Johns Hopkins University say new experiments explain how certain cancer stem cells thrive in low oxygen conditions. Proliferation of such cells, which tend to resist chemotherapy and help tumors spread, are considered a major roadblock to successful cancer treatment.

29 Mar 2016

Findings could help explain origin of type 2 diabetes in children of obese mothers

A new study led by researchers at The Saban Research Institute of Children's Hospital Los Angeles reports that the presence of leptin - a hormone secreted by fat cells that is critical to maintaining energy balance in the body -- inhibits the prenatal development of neuronal connections between the brain and pancreas. The findings could help explain the origin of type 2 diabetes, particularly in children of obese mothers.

25 Mar 2016

Study uncovers role of small RNAs in fine-tuning egg development

All multicellular organisms that reproduce sexually rely on eggs to support early life. Researchers at University of California, San Diego School of Medicine and Ludwig Cancer Research used the tiny roundworm C. elegans as a model to better understand how eggs enable embryonic development, using only the materials already present in them.

25 Mar 2016

Mothers give offspring a head start in life

Thank your mothers: A research collaboration between UC Santa Barbara and L'École Normale Supérieure in Paris has proven that deterministic maternal effects can give offspring a better start on life.

17 Mar 2016

Study shows new RNA letter as regulatory key to control gene expression

DNA, RNA, protein -- the end. Or is it? Until recently, the pattern used to encode genetic information into our cells was considered to be relatively straightforward: four letters (A,G,C,T) for DNA and four (A,G,C,U) for RNA. This equation, however, turned out to be oversimplified -- RNA was holding out.

17 Feb 2016

Researchers discover factor that controls embryonic stem cell development

After a gestation period of around ten months, fawns are born in early summer - when the weather is warm and food is plentiful for the mother. Six months would actually be enough for the embryo's development, but then offspring from mating in the later portion of summer would be born in winter.

17 Feb 2016

Variations in Tie2 gene play significant role in patient responses to infections

Major infections such as influenza and bacterial sepsis kill millions of people each year, often resulting fro dangerous complications that impair the body's blood vessels. But the reasons why some patients experience these dramatic responses to infections -- and others don't -- have been unclear.

16 Feb 2016

Duchenne muscular dystrophy: direct effect on muscle stem cells? An interview with Dr Rudnicki

For twenty years, it has been understood that dystrophin is expressed in differentiated muscle fibers where it is part of a protein complex that crosses the membrane and connects the extracellular matrix to the actin network inside the cell to provide structural integrity.

5 Feb 2016

Study reveals fetal origin for social and repetitive behavior deficits

Fetal development has been known to play an important role in social interaction, a fundamental behavior found in nearly all organisms, and later adult social behaviors. Autism, a highly heritable neurodevelopment disorder that causes difficulties with social interactions, has been postulated to be caused by neuron overgrowth in the prenatal period, although the precise timing and cause of this overgrowth has been unknown.

3 Feb 2016