Abstract：
:Few mechanistic ideas from the pre-molecular era of biology have had as enduring an impact as the morphogen concept. In the classical view, cells in developing embryos obtain positional information by measuring morphogen concentrations and comparing them with fixed concentration thresholds; as a result, graded morphogen distributions map into discrete spatial arrangements of gene expression. Recent studies on Hedgehog and other morphogens suggest that establishing patterns of gene expression may be less a function of absolute morphogen concentrations, than of the dynamics of signal transduction, gene expression, and gradient formation. The data point away from any universal model of morphogen interpretation and suggest that organisms use multiple mechanisms for reading out developmental signals in order to accomplish specific patterning goals.
journal_name
Curr Opin Genet Devjournal_title
Current opinion in genetics & developmentauthors
Nahmad M,Lander ADdoi
10.1016/j.gde.2011.10.002subject
Has Abstractpub_date
2011-12-01 00:00:00pages
726-31issue
6eissn
0959-437Xissn
1879-0380pii
S0959-437X(11)00149-3journal_volume
21pub_type
杂志文章,评审abstract：:Eukaryotic genomes encode genetic information in their linear sequence, but appropriate expression of their genes requires chromosomes to fold into complex three-dimensional structures. Fueled by a growing collection of sequencing and imaging-based technologies, studies have uncovered a hierarchy of DNA interactions, ...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2020.03.005
更新日期：2020-04-01 00:00:00
abstract：:Over the last decade we have witnessed the convergence of two powerful experimental designs toward a common goal of defining the molecular subtypes that underpin the likelihood of a cancer patient responding to treatment in the clinic. The first of these 'experiments' has been the systematic sequencing of large number...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2013.12.002
更新日期：2014-02-01 00:00:00
abstract：:The circadian clock of the cyanobacterium Synechococcus elongatus PCC 7942 is built on a three-protein central oscillator that can be reconstituted in vitro, a redox-sensitive input for synchronization with the environment, and a bacterial two-component signal transduction pathway for global transcriptional regulation...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2010.09.002
更新日期：2010-12-01 00:00:00
abstract：:Cardiovascular morphogenesis involves cell behavior and cell identity changes that are activated by mechanical forces associated with heart function. Recently, advances in in vivo imaging, methods to alter blood flow, and computational modelling have greatly advanced our understanding of how forces produced by heart c...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2019.08.002
更新日期：2019-08-01 00:00:00
abstract：:Several advances have been made in our understanding of the control of the growth and patterning of embryonic limbs. Development of the vertebrate limb is dependent on reciprocal interactions between the ectoderm and mesoderm that regulate the structure and function of the apical ectodermal ridge. One key component of...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章
doi：10.1016/s0959-437x(00)00101-5
更新日期：2000-08-01 00:00:00
abstract：:The past year has been a spectacular one for Drosophila research. The sequencing and annotation of the Drosophila melanogaster genome has allowed a comprehensive analysis of the first three eukaryotes to be sequenced-yeast, worm and fly-including an analysis of the fly's influences as a model for the study of human di...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(00)00140-4
更新日期：2000-12-01 00:00:00
abstract：:Microsatellites may soon become the markers of choice for molecular population genetic studies. However, our knowledge of these simple repetitive sequences and how they evolve in natural populations is far from complete. We highlight some recent results of population studies and advances in our ability to interpret so...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/0959-437x(93)90017-j
更新日期：1993-12-01 00:00:00
abstract：:Genomic information from ancient human remains is beginning to show its full potential for learning about human prehistory. We review the last few years' dramatic finds about European prehistory based on genomic data from humans that lived many millennia ago and relate it to modern-day patterns of genomic variation. T...
journal_title：Current opinion in genetics & development
pub_type： 历史文章,杂志文章,评审
doi：10.1016/j.gde.2016.09.004
更新日期：2016-12-01 00:00:00
abstract：:Proliferating cells must increase their mass coordinately with cell division. Recent evidence suggests that coupling of cell growth with cell division might be achieved by making synthesis of activators of cell division particularly sensitive to the capacity of the cell's protein synthesis machinery. ...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(99)80011-2
更新日期：1999-02-01 00:00:00
abstract：:Loss of the retinoblastoma protein, pRb, appears to have a role in several human tumor types. Mice lacking pRb have been produced as models of human disease, but have a different spectrum of affected tissues. Recent work shows that the tumorigenic effects of pRb may be revealed only after additional genetic alteration...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(95)90057-8
更新日期：1995-02-01 00:00:00
abstract：:Following neurulation, neural crest cells emerge from the neural tube and undergo extensive migrations. At the onset of migration, multipotent stem cells exist within the neural crest population. Eventually, these assume one of a number of possible fates, ranging from neurons and glia of the peripheral nervous system ...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/0959-437x(93)90101-t
更新日期：1993-08-01 00:00:00
abstract：:Eukaryotic chromatin is a negatively charged long polymer composed of genomic DNA, histones, and various proteins. The charged property causes the chromatin structure to be dynamically changed. These dynamic changes are critical for genome functions such as gene expression because they directly govern the degree of DN...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2015.11.006
更新日期：2016-04-01 00:00:00
abstract：:Notch signaling has been implicated in a wide variety of processes from cell-fate decisions, tissue patterning and morphogenesis to human diseases and cancer. A model for Notch directly regulating gene expression has been proposed and at least two signaling pathways have been identified; however, the molecular mechani...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(98)80115-9
更新日期：1998-08-01 00:00:00
abstract：:The ability to reprogram cell lineage specification through the activity of master regulatory transcription factors has transformed disease modeling, drug screening, and cell therapy for regenerative medicine. Recent advances in the engineering of synthetic transcription factors to modulate endogenous gene expression ...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2018.05.001
更新日期：2018-10-01 00:00:00
abstract：:Hepatocytes differentiate from the endoderm during embryonic development. Recent studies show, however, that hepatocytes can also be derived from rare cells that reside in the pancreas, bone marrow, and brain. Indeed, the latest discoveries indicate that embryonic hepatocytes normally arise by diversion of an endoderm...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(00)00234-3
更新日期：2001-10-01 00:00:00
abstract：:In their development, plants precisely control the patterns of cell size, cell shape and cell division, the position of differentiation of cell types, and the position and number of organs. In the past year, progress has been made in understanding four of these five levels of control of plant pattern formation, includ...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/0959-437x(94)90079-i
更新日期：1994-08-01 00:00:00
abstract：:New structural studies of RNA polymerase II (Pol II) complexes mark the beginning of a detailed mechanistic analysis of the eukaryotic mRNA transcription cycle. Crystallographic models of the complete Pol II, together with new biochemical and electron microscopic data, give insights into transcription initiation. The ...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2004.01.003
更新日期：2004-04-01 00:00:00
abstract：:Population data suggest that many parasitic protozoa (e.g. Trypanosoma, Leishmania, Entamoeba and Giardia) reproduce clonally, but this hypothesis has been highly controversial for Plasmodium falciparum. Although reproduction is predominantly clonal in the enteric bacteria Escherichia coli and Salmonella, the level of...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(05)80119-4
更新日期：1992-12-01 00:00:00
abstract：:Identification of new genes involved in muscle disorders has dramatically changed the traditional clinical classification of the large and heterogeneous group of the muscular dystrophies. Results obtained in recent years by positional candidate cloning have demonstrated the role of the sarcolemma and of the nuclear en...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(99)80041-0
更新日期：1999-06-01 00:00:00
abstract：:The formation of new blood vessels through the process of angiogenesis is critical in vascular development and homeostasis. Aberrant angiogenesis leads to a variety of diseases, such as ischemia and cancer. Recent studies have revealed important roles for miRNAs in regulating endothelial cell (EC) function, especially...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2009.04.002
更新日期：2009-06-01 00:00:00
abstract：:Allele-specific gene expression can influence disease traits. Non-coding germline genetic variants that alter regulatory elements can cause allele-specific gene expression and contribute to cancer susceptibility. In tumors, both somatic copy number alterations and somatic single nucleotide variants have been shown to ...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2020.10.007
更新日期：2020-12-28 00:00:00
abstract：:Understanding the past is to understand the present. Mammalian life, with all its complexity comes from a humble beginning of a single fertilized egg cell. Achieving this requires an enormous diversification of cellular function, the majority of which is generated through a series of cellular decisions during embryoge...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2015.08.002
更新日期：2015-10-01 00:00:00
abstract：:The conversion of one cell type to another is defined as metaplasia (or sometimes it is referred to as transdifferentiation or cellular reprogramming). Metaplasia is important clinically and may predispose to the development of cancer. Barrett's metaplasia is one such example and is the focus of the present review. Ba...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2012.08.001
更新日期：2012-10-01 00:00:00
abstract：:In the Drosophila eye, photoreceptor clusters are arranged with mirror-image symmetry about the dorso-ventral midline. Recent work indicates critical rôles for Wingless and JAK/STAT signalling in setting up long-range gradients of positional information that determine this symmetry. Furthermore, important functions ha...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/S0959-437X(99)80067-7
更新日期：1999-08-01 00:00:00
abstract：:Since the cloning of the Y-located testis-determining factor, sex determining region Y (SRY), several other genes have been implicated in the process of mammalian sex determination. Mutations of an SRY-related gene, SRY-related high-mobility group box 9 (SOX9), result in autosomal sex reversal and campomelic dysplasia...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(96)80008-6
更新日期：1996-06-01 00:00:00
abstract：:The current state of the gene regulatory network for endomesoderm specification in sea urchin embryos is reviewed. The network was experimentally defined, and is presented as a predictive map of cis-regulatory inputs and functional regulatory gene interconnections (updated versions of the network and most of the under...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2004.06.004
更新日期：2004-08-01 00:00:00
abstract：:The induction of apoptosis of virus-infected cells is an important host defense mechanism against invading pathogens. Some viruses express anti-apoptotic proteins that efficiently block apoptosis induced by death receptors or in response to stress signaled through mitochondria. Viral interference with host cell apopto...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/s0959-437x(98)80066-x
更新日期：1998-02-01 00:00:00
abstract：:Bladder cancer is the 5th commonest cancer and two major risk factors are smoking and occupational chemical exposure. There is also evidence of a genetic component to its aetiology. Candidate gene studies have mostly focused on genes involved in adduct metabolism and DNA repair, including a recent consortium-based met...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2010.01.002
更新日期：2010-06-01 00:00:00
abstract：:Over the past twenty years, exciting developments in optical and molecular imaging approaches have allowed researchers to examine with unprecedented resolution the spatial organization of transcription sites in the nucleus. An attractive model that has developed from these studies is that active genes cluster to prefo...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2014.01.002
更新日期：2014-04-01 00:00:00
abstract：:The discovery of induced pluripotent stem cells (iPSCs) has solidified the concept of transcription factors as major players in controlling cell identity and provided a tractable tool to study how somatic cell identity can be dismantled and pluripotency established. A number of landmark studies have established hallma...
journal_title：Current opinion in genetics & development
pub_type： 杂志文章,评审
doi：10.1016/j.gde.2018.06.002
更新日期：2018-10-01 00:00:00
