APAKAH MAKSUD MORPHOGEN dalam CORSICA?
Morphogen
Morphogen adalah bahan yang mengawal corak perkembangan tisu dalam proses morfogenesis, dan kedudukan pelbagai jenis sel khusus dalam tisu. Lebih tepat lagi, morphogen adalah molekul isyarat yang bertindak secara langsung pada sel untuk menghasilkan tindak balas selular tertentu bergantung kepada kepekatan tempatannya. Sejak morphogens meresap melalui tisu embrio semasa pembangunan awal, kecerunan tumpuan ditubuhkan. Gradien ini mendorong proses pembezaan sel-sel yang tidak dikhususkan ke dalam sel-sel yang berlainan, akhirnya membentuk semua tisu dan organ-organ tubuh.
Definisi morphogen dalam kamus Corsica
Takrif morphogen dalam kamus adalah bahan kimia yang terdapat dalam tisu yang mempengaruhi perkembangan sel semasa morfogenesis dengan membentuk kecerunan tumpuan.
CORSICA BUKU YANG BERKAIT DENGAN «MORPHOGEN»
Ketahui penggunaan
morphogen dalam pilihan bibliografi berikut. Buku yang berkait dengan
morphogen dan ekstrak ringkas dari yang sama untuk menyediakan konteks penggunaannya dalam kesusasteraan Corsica.
1
Generation and interpretation of
morphogen gradients: a ...
Written and edited by experts in the field, this volume explores how morphogen gradients are generated and interpreted during development.
James Briscoe, Peter Anthony Lawrence, Jean-Paul Vincent,
2010
2
Life: The Science of Biology
Morphogen gradients provide positional information During development, the key
cellular question, "What am I (or what will I be)?" is often answered in part by "
Where am I?" Think of the cells in the developing nematode, which develop into ...
H. Craig Heller, David M. Hillis,
2011
3
Shh and Gli Signalling in Development
To qualify as a morphogen, a signal must fulfil two criteria: to form a concentration
gradient, and to elicit distinct responses at different concentrations. Cells
encounter different concentrations of a morphogen according to their distance
from the ...
Sarah Howie, Carolyn Elaine Fisher,
2008
4
Signal Transduction Research Trends
Nickolas O. Grachevsky. Shh was first reported as a morphogen in the limb
development (Figure 2A). Classical grafting experiments using chick embryos
had revealed existence of zone of polarizing activity (ZPA) in the posterior limb
bud [41, ...
Nickolas O. Grachevsky,
2007
5
Biological Physics of the Developing Embryo
Here the effect of the morphogen spreads as if by diffusion, but what is actually
propagating across the domain is an activity passed from cell to cell by signaling
rather than by any substance (Reilly and Melton, 1996). In addition, morphogens
...
Gabor Forgacs, Stuart A. Newman,
2005
6
Patterning and Cell Type Specification in the Developing CNS ...
The concept of a morphogen can be traced to the turn of the twentieth century,
when Morgan postulated the presence of 'formative substances' as the basis for
differ- ent regeneration rates in worms (Morgan, 1901). Very soon thereafter,
Boveri ...
Normal morphogen gradient M with L (lower) and H (higher) thresholds for
Hoxa13 activation. Additional morphogen sources at the tip increase M to M1 or
M2. additional morphogen source is inserted at the distal tip, the gradient
increases to ...
Spyros Papageorgiou,
2007
By definition, a morphogen acts locally to organize the spatial pattern of cell
differention by virtue of spatial concentration differences. A high concentration of
a morphogen at location 1 specifies cell type or structure A, a lower concentration
at ...
9
Wnt Signaling in Development
As a minimal definition, an extracellular morphogen is a molecule that can
spread out from a localized source and directly instruct cell identities in a
concentration-dependent manner. For secreted signaling proteins to fulfill these
criteria ...
10
Systems Biomedicine: Concepts and Perspectives
FIGURE 14.3 The Role of Receptor–Ligand Trafficking in Morphogen Transport.
Receptor–ligand trafficking plays a crucial role in establishing morphogen
gradients, irrespective of whether morphogen transport occurs by (A) diffusion or
(B) ...
Edison T. Liu, Douglas A. Lauffenburger,
2009
BARANGAN BERITA YANG TERMASUK TERMA «MORPHOGEN»
Ketahui apa yang diterbitkan oleh akhbar nasional dan antarabangsa dan cara istilah
morphogen digunakan dalam konteks perkara berita berikut.
Analysis of the TGFβ-induced program in primary airway epithelial …
TGFβ-induced EMT is modulated by a variety of signals including cytokine stimulation, morphogen signaling, and ECM interactions. «BMC Blogs Network, Jul 15»
Self-organizing human cardiac microchambers mediated by …
Future studies on lineage tracking, and morphogen gradient and fate mapping, will further elucidate linkages between early cardiac ... «Nature.com, Jul 15»
Synergistic activity of polarised osteoblasts inside condensations …
The environmental variables can include presence of biological structures or gradients of a chemokine or morphogen, amongst others. «Nature.com, Jul 15»
[Review] BMP gradients: A paradigm for morphogen-mediated …
Bone morphogenetic proteins (BMPs) act in dose-dependent fashion to regulate cell fate choices in a myriad of developmental contexts. «Military Technologies, Jun 15»
Mesenchymal Adenomatous Polyposis Coli plays critical and …
Moreover, lung epithelial branching morphogenesis was drastically inhibited due to disrupted Bmp4-Fgf10 morphogen production and ... «7thSpace Interactive, Jun 15»
A microRNA code for prostate cancer metastasis
Fat facets deubiquitylation of Medea/Smad4 modulates interpretation of a Dpp morphogen gradient. Development 2012; 139: 2721–2729. «Nature.com, Jun 15»
Why Are Human Eggs So Huge?
Morphogen behaviour is concentration-dependent. That means they tell cells slightly different things depending on how much of the molecule a ... «Gizmodo Australia, Mei 15»
How fancy cats evolved: The science of our most adorable pets
Sonic hedgehog is a master developmental regulatory gene that produces a protein molecule of a sort called a “morphogen,” which forms a ... «Salon, Mei 15»
h+ Media | ALK5 A Single Drug Simultaneously Rejuvenates …
... either anti- or pro-inflammatory depending on the levels of this morphogen and the gene expression landscape of the responding tissue [29, ... «h+ Magazine, Mei 15»
Body Proportions Go Back to the Egg … and Its Ration of Maternal …
A new scaling model links morphogen gradients in Drosophila fruit fly embryos with maternal tissue expansion. [Matt Kofron/Cincinnati ... «Genetic Engineering & Biotechnology News, Mac 15»