According to the researchers, these findings suggest that differences in shape from cell - to - cell within a tissue are key to their ability to jam and unjam — and that this process appears to drive biological events
including embryonic development, wound healing, and, potentially, cancer cell invasion.
Not exact matches
A working knowledge of pregnancy and human
development from the anatomy and physiology point of view
including fertilization, basic
embryonic development, and basic fetal
development.
«Furthermore, results of our study highlight the importance of
including moisture conditions when predicting embryo growth and sex ratios and in developing proxies of
embryonic development.
These
include a family of signaling molecules called protocaderins, which regulate neuronal
development and short - range interactions between neurons, and a family of transcription factors called zinc fingers, which are mainly expressed in
embryonic and nervous tissues and are thought to play roles in brain
development.
It performs this critical service in
embryonic development, growing organisms and in a few specialized adult cell lines,
including stem cells.
Neurocutaneous disorders are caused by abnormal
development of cells in the
embryonic stage, leading to tumors in various parts of the body,
including the skin, organs, bones, brain and spinal cord.
Rivolta and his colleagues knew that during
embryonic development, a handful of proteins,
including fibroblast growth factor (FGF) 3 and 10, are required for ears to form.
To find out what these genes do, and which ones are master regulators of
development, researchers have several approaches,
including deactivating
embryonic genes in mice.
Other potential uses of
embryonic stem cells
include investigation of early human
development, study of genetic disease and as in vitro systems for toxicology testing.
Cook's illustrious subjects
include the umbrella - bearing British cosmologist Sir Martin Rees of the University of Cambridge, the wrinkle - faced late naturalist and flea expert Miriam Rothschild, and the biologist Christiane Nüsslein - Volhard (left) of the Max Planck Institute for Developmental Biology in Tübingen, Germany, who won the 1995 Nobel Prize in Physiology or Medicine for codiscovering key genes that shape
embryonic development.
My research interests
include investigating the role of RNA degradation in Drosophila
development, investigating the impact of wounding in the Drosophila
embryonic central nervous system, and investigating the effect of protein degradation on the activity of different transcription factors in neuronal fate decisions during nervous system
development in Drosophila.
The challenge takes on even more urgency with recent
developments,
including a federal administration now more open to exploring the potential of stem cells, the recent FDA approval of a human trial involving
embryonic stem cells, as well as the reported case of a young boy who developed a brain tumor four years after receiving a stem - cell treatment for a rare genetic disorder.
Moreover, ES cell differentiation in vitro recapitulates events that take place during early
embryonic development including the formation of the three germ layers of ectoderm, mesoderm and endoderm, and the emergence of endothelial, hematopoietic, cardiac, neuronal and hepatic or pancreatic cells [8], [9].
For example, clusters containing genes that are upregulated during the course of ES cell differentiation (Table 3)
include in order of time of expression: cluster 30 that represents genes which take part in the formation of the three
embryonic germ layers during gastrulation, i.e., Goosecoid, Cerberus like 1 homolog, Wnt3, Mesp1, Mixl1, mEomes and Even - skipped 1; cluster 15 containing molecular regulators of early mesoderm
development including Bmp2, Bmp5, Msx1, Msx2, Cripto, Tbx20, Hey2, Smad6, Vegfr2 (Kdr), Foxf1 and Hand1; cluster 20, which comprises regulatory and structural genes linked to hemopoiesis such as Gata1, Nfe2, Klf1, Tie1, hemoglobins (Hba - x, Hbb - b1) and Glycophorin A; cluster 12, which is rich in genes involved in cardiac
development, e.g., Mef2c, Myl4, cardiac Troponin T2, Tropomodulin 1, myosin binding protein C, Bves, Angiopoietin 1 and Angiopoietin 2; and, cluster 4, which consists mostly of genes associated with neuronal
development and differentiation, for example, Neurog1, Neurog2, Olig2, Nkx6.1, Neurod4, Pou3f2, Pou3f4, Cacna2d3, Cacng4, Kcnq2 and EphA5.
Other gene families that were dramatically expanded in the octopus
include zinc finger transcription factors, which are mainly expressed in
embryonic and nervous tissues and are thought to play roles in
development.