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.

Researchers identify a molecular mechanism that contributes to colorectal tumors

Researchers at the University of Wisconsin-Madison School of Medicine and Public Health have identified a molecular mechanism that allows two powerful signaling pathways to interact and begin a process leading to colorectal tumors.

16 Nov 2009

Understanding how regulatory networks drive development

Embryonic development is like a well-organised building project, with the embryo's DNA serving as the blueprint from which all construction details are derived. Cells carry out different functions according to a developmental plan, by expressing, i.e. turning on, different combinations of genes.

6 Nov 2009

CIRM awards Salk Institute $10.8M grant to develop stem-cell based therapy for Lou Gehrig's Disease

The Salk Institute has been awarded a $10.8 million grant by the California Institute for Regenerative Medicine (CIRM) for translational research focusing on developing a novel stem-cell based therapy for Amyotrophic Lateral Sclerosis (ALS) - or Lou Gehrig's Disease.

29 Oct 2009

Total number of vertebrae: Hox genes have a say

Vertebrates have in common a skeleton made of segments, the vertebrae. During development of the embryo, each segment is added in a time dependent manner, from the head-end to the tail-end: the first segments to be added become the vertebrae of the neck, later segments become the vertebrae with ribs and the last ones the vertebra located in the tail (in the case of a mouse, for example). In this process, it is crucial that, on the one hand, each segment, as it matures, becomes the correct type of vertebra and, on the other, that the number of vertebrae in the skeleton, and therefore the size of the spine, are minutely controlled.

28 Oct 2009

Novel protein responsible for changing DNA structure and silencing the expression of genes identified

A study published recently in the Proceedings of the National Academy of Science (PNAS) by a team of scientists headed by Professors Hélène Bierne and Pascale Cossart from the Pasteur Institute, in collaboration with colleagues form the CNRS and the French Agricultural Research Institute (INRA), identified a novel protein, BAHD1, which is responsible for changing DNA structure and silencing the expression of genes.

26 Oct 2009

Scientists identify the first genetic mechanism that generates the cerebral cortex

The cerebral cortex, the largest and most complex component of the brain, is unique to mammals and alone has evolved human specializations. Although at first all stem cells in charge of building the cerebral cortex-the outermost layer of neurons commonly referred to as gray matter-are created equal, soon they irrevocably commit to forming specific cortical regions. But how the stem cells' destiny is determined has remained an open question.

14 Oct 2009

Researchers succeed in engineering human tissue patches from stem cells

University of Washington (UW) researchers have succeeded in engineering human tissue patches free of some problems that have stymied stem-cell repair for damaged hearts.

8 Oct 2009

Researchers identify embryonic origin of Merkel cells

Publication in Journal of Cell Biology : researchers from ULB (IRIBHM) identify the embryonic origin of Merkel cells. Their research continue on an extremely aggressive cancer, the Merkel cell carcinoma

30 Sep 2009

MDC scientist receives 1 million euros for diabetic research

A European Research Council (ERC) Starting Grant worth more than a million euros over the next five years has been awarded to Dr. Francesca M. Spagnoli of the Max Delbr-ck Center for Molecular Medicine (MDC) Berlin-Buch, Germany.

21 Sep 2009

Vitamin C deficiency may impair mental development in newborn babies

New research at LIFE - Faculty of Life Sciences at University of Copenhagen shows that vitamin C deficiency may impair the mental development of new-born babies.

3 Sep 2009

New tool for scientists - light used to manipulate cell movement

One of the biggest challenges in scientists' quest to develop new and better treatments for cancer is gaining a better understanding of how and why cancer spreads. Recent breakthroughs have uncovered how different cellular proteins are turned 'on' or 'off' at the molecular level, but much remains to be understood about how protein signaling influences cell behavior.

19 Aug 2009

Protein plays unexpected role protecting chromosome tips

A protein specialist that opens the genomic door for DNA repair and gene expression also turns out to be a multi-tasking workhorse that protects the tips of chromosomes and dabbles in a protein-destruction complex, a team lead by researchers at The University of Texas M. D. Anderson Cancer Center reports in the Aug. 13 edition of Molecular Cell.

13 Aug 2009

$3.2M grant to explore how chemicals affect human health

Most people would agree that arsenic, lead, mercury, benzene and carbon monoxide pose dangers to humans. Not many, though, realize that the average person is exposed to about 10,000 different chemicals per day.

12 Aug 2009

Discovery of mechanism that protects somatic cells against the behaviour of germ cells

An IRB Barcelona research team discovers the mechanism that favors the correct separation of germ cells -- future ovules and sperm -- from the rest of the cells during embryonic development

3 Aug 2009

New understanding of how cells cover gaps

Researchers at the European Molecular Biology Laboratory (EMBL) in Heidelberg, Germany, came a step closer to understanding how cells close gaps not only during embryonic development but also during wound healing. Their study, published this week in the journal Cell, uncovers a fundamental misconception in the previous explanation for a developmental process called dorsal closure.

28 Jun 2009

Discovery of gene vital to early embryonic cells forming a normal heart and skull

New research from Cincinnati Children's Hospital Medical Center highlights the critical role a certain gene and its protein play during early embryonic development on formation of a normal heart and skull.

16 Jun 2009

Study reveals mechanism that could combat congenital limb defects like Holt-Oram syndrome

Gregg Duester, Ph.D., professor of developmental biology at Burnham Institute for Medical Research (Burnham), along with Xianling Zhao, Ph.D., and colleagues, have clarified the role that retinoic acid plays in limb development.

9 Jun 2009

Model for new generation of blood vessels challenged

In-growth and new generation of blood vessels, which must take place if a wound is to heal or a tumor is to grow, have been thought to occur through a branching and further growth of a vessel against a chemical gradient of growth factors. Now a research team at Uppsala University and its University Hospital has shown that mechanical forces are considerably more important than was previously thought.

2 Jun 2009

Protein abundant in embryonic stem cells offers a new cancer target

A protein abundant in embryonic stem cells is now shown to be important in cancer, and offers a possible new target for drug development, report researchers from the Stem Cell Program at Children's Hospital Boston.

1 Jun 2009