Abstract：
:Most cells polarize in response to an asymmetric signal but some can spontaneously establish a discrete axis of polarity in the absence of a directional cue. Many mathematical models predict that locally acting positive feedback loops and globally acting negative regulators are required for pattern formation. Here, we summarize recent progress towards identifying some of the molecular components involved in these positive and negative feedback mechanisms. In addition, we describe the increasing evidence suggesting that the actin cytoskeleton is fundamentally important for the spontaneous symmetry breaking observed in a range of different organisms.
journal_name
Trends Cell Bioljournal_title
Trends in cell biologyauthors
Sohrmann M,Peter Mdoi
10.1016/j.tcb.2003.08.006subject
Has Abstractpub_date
2003-10-01 00:00:00pages
526-33issue
10eissn
0962-8924issn
1879-3088pii
S0962892403001971journal_volume
13pub_type
杂志文章,评审abstract：:Like the conductor of an orchestra, the Sec protein translocation channel is the platform needed to bring together the many different players required for the constitutive and obligatory process of protein transport. This conserved membrane channel, termed SecY in bacteria and Sec61 in eukaryotes, creates a ubiquitous...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2011.04.005
更新日期：2011-09-01 00:00:00
abstract：:The directional migration of cells within multicellular organisms is governed by gradients of both chemical attractants and repellents in diverse processes, including leukocyte trafficking and neuronal pathfinding in vivo. These complex extracellular environments direct the orchestrated bidirectional trafficking of le...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2008.04.001
更新日期：2008-06-01 00:00:00
abstract：:Endocytosis is essential for the entry of many viruses into cells. The primate lentiviruses [human immunodeficiency virus (HIV) 1 and 2, and the simian immunodeficiency viruses (SIVs)], however, use endocytosis in other aspects of their life cycles. Here, the authors describe the ways in which the endocytic pathway is...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/S0962-8924(97)20038-3
更新日期：1997-01-01 00:00:00
abstract：:Microtubules have been regarded as essential structures for stable neuronal morphology but new studies are highlighting their role in dynamic neuronal processes. Recent work demonstrates that the microtubule cytoskeleton has an active role during different phases of neuronal polarization - microtubules and their stabi...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/j.tcb.2009.08.006
更新日期：2009-12-01 00:00:00
abstract：:Microbiology has a long way to go. Microbes are ubiquitous, and all other life forms in the biosphere exist solely because of them, but, as less than 1% of microorganisms can be grown in the laboratory, more than a century of research has revealed only the tip of the iceberg concerning this most crucial of life scienc...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：
更新日期：1999-12-01 00:00:00
abstract：:Members of the myosin-I family of molecular motors are expressed in many eukaryotes, where they are involved in a multitude of critical processes. Humans express eight distinct members of the myosin-I family, making it the second largest family of myosins expressed in humans. Despite the high degree of sequence conser...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2012.10.008
更新日期：2013-02-01 00:00:00
abstract：:Genome-wide analyses of yeast provide insight into cellular responses to reactive oxygen species (ROS). Many deletion mutants are sensitive to at least one ROS, but no one oxidant is representative of 'oxidative stress' despite the widespread use of a single compound such as H(2)O(2). This has major implications for s...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2005.04.003
更新日期：2005-06-01 00:00:00
abstract：:Lysosome function and position in the cytoplasm depends on the BORCS machinery, which tethers lysosomes to the kinesin microtubule motor. A recent paper of Snouwaert et al. in Cell Reports characterizes a mouse with a spontaneous mutation in the Borcs7 subunit, which causes axonal dystrophy and impaired motor function...
journal_title：Trends in cell biology
pub_type： 评论,杂志文章
doi：10.1016/j.tcb.2018.08.002
更新日期：2018-10-01 00:00:00
abstract：:Transforming growth factor-beta (TGF-beta) regulates cell proliferation, differentiation and apoptosis, and TGF-beta-related proteins have key roles in development, tissue homeostasis and disease. Upon binding to their cell surface receptors, TGF-beta family proteins signal through Smads to induce changes in gene expr...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2009.05.008
更新日期：2009-08-01 00:00:00
abstract：:Formation of secretion granules in regulated secretory cells involves packaging a subject of proteins undergoing intracellular transport into specific vesicular carriers that function in stimulus-dependent exocytosis. Recent findings suggest that immature granules are a site of passive sorting, involving condensation ...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/0962-8924(92)90181-l
更新日期：1992-11-01 00:00:00
abstract：:Chloroplasts depend on the nucleus for much of their proteome. Consequently, strong transcriptional coordination exists between the genomes, which is attuned to the developmental and physiological needs of the organelle. Recent studies highlight that the post-translational modifier ubiquitin adds another layer to plas...
journal_title：Trends in cell biology
pub_type： 评论,杂志文章
doi：10.1016/j.tcb.2015.12.001
更新日期：2016-01-01 00:00:00
abstract：:Macrophages are cells of the innate immune system that regulate the maintenance of tissue homeostasis, host defense during pathogen infection, and tissue repair in response to tissue injury. Recent studies indicate that macrophage functions are influenced by cellular metabolism, including lipid metabolism. Here, we re...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2020.09.006
更新日期：2020-12-01 00:00:00
abstract：:Microtubules are composed predominantly of two related proteins: alpha- and beta-tubulin. These proteins form the tubulin heterodimer, which is the basic building block of microtubules. Surprisingly, recent molecular genetic studies have revealed the existence of gamma-tubulin, a new member of the tubulin family. Like...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/0962-8924(92)90125-7
更新日期：1992-01-01 00:00:00
abstract：:Recent findings provide evidence for dynamic and highly regulated dual subcellular localization of catalase, a hydrogen peroxide (H2O2)-metabolizing enzyme, in peroxisomes and the cytosol. These data suggest a number of important implications for the field of oxidative stress biology. ...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/j.tcb.2020.12.006
更新日期：2021-01-06 00:00:00
abstract：:Plant seeds store nitrogen by accumulating storage proteins in protein bodies within various compartments of the endomembrane system. The prolamin storage proteins of some cereal species are normally retained and assembled into protein bodies within the ER. Yet, these proteins lack a C-terminal KDEL/HDEL signal, sugge...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/0962-8924(93)90033-w
更新日期：1993-12-01 00:00:00
abstract：:Mitochondria are dynamic organelles that have essential metabolic and regulatory functions. Earlier studies using electron microscopy (EM) revealed an immense diversity in the architecture of cristae - infoldings of the mitochondrial inner membrane (IM) - in different cells, tissues, bioenergetic and metabolic conditi...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2020.08.008
更新日期：2020-12-01 00:00:00
abstract：:Chloroplasts have multiple suborganellar membranes. Correct and efficient translocation of chloroplast proteins from their site of synthesis into or across membranes to their functional compartments are fundamental processes. In recent years, several new components and regulatory mechanisms involved in chloroplast pro...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2020.09.011
更新日期：2021-01-01 00:00:00
abstract：:Proteins of the cyclophilin family display two intriguing properties. On the one hand, they are the intracellular receptors for the immunosuppressive drug cyclosporin A (CsA); on the other hand, they function in vitro as enzymes that catalyse slow steps in protein folding. A dissection of the role of CsA in mediating ...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/0962-8924(92)90200-7
更新日期：1992-09-01 00:00:00
abstract：:Xenophagy, the process of eliminating intracellular pathogens through the autophagy machinery, is an important defense mechanism against infectious disease, yet the underlying molecular mechanisms remain incompletely understood. Recent work (Xu et al., Cell, 2019) used the discovery of an inhibitor of xenophagy, SopF,...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2019.08.001
更新日期：2019-10-01 00:00:00
abstract：:When starved, the fission yeast Schizosaccharomyces pombe responds by producing mating factors or pheromones that signal to cells of the opposite sex to initiate mating. Like its distant relative Saccharomyces cerevisiae, cells of the two mating types of S. pombe each produce a distinct pheromone that binds to recepto...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/0962-8924(93)90162-t
更新日期：1993-02-01 00:00:00
abstract：:RNA-binding proteins are involved in various aspects of RNA metabolism such as processing, translational control, stabilization, localization and transport. Many of these proteins bind several RNA targets and have multiple functions. In this review we focus on RNA-binding proteins that are implicated in RNA transport ...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0962-8924(02)02357-7
更新日期：2002-10-01 00:00:00
abstract：:The basement membrane (BM), a specialized network of extracellular matrix macromolecules, surrounds epithelial, endothelial, muscle, fat and nerve cells. During development, immune surveillance and disease states ranging from cancer to fibrosis, host cells penetrate the BM by engaging tissue-invasive programs, the ide...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2008.08.007
更新日期：2008-11-01 00:00:00
abstract：:Somatic stem cells maintain tissue homeostasis by organizing themselves in such a way that they can maintain proliferative output while simultaneously protecting themselves from DNA damage that may lead to oncogenic transformation. There is considerable debate about how such stem cell compartments are organized. Burge...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2017.06.006
更新日期：2017-10-01 00:00:00
abstract：:Endosomal protein sorting governs the fate of many physiologically important proteins involved in a panoply of cellular functions. Recent discoveries have revealed a vital role for endosomally localised branched actin patches in facilitating protein sorting. The formation of the actin patches has been shown to require...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2013.04.010
更新日期：2013-11-01 00:00:00
abstract：:Acetate and the related metabolism of acetyl-coenzyme A (acetyl-CoA) confer numerous metabolic functions, including energy production, lipid synthesis, and protein acetylation. Despite its importance as a nutrient for cellular metabolism, its source has been unclear. Recent studies have provided evidence to support th...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2019.05.005
更新日期：2019-09-01 00:00:00
abstract：:The light-sensitive outer segment organelle of the vertebrate photoreceptor cell is a modified cilium filled with hundreds of flattened 'disc' membranes that provide vast light-absorbing surfaces. The outer segment is constantly renewed with new discs added at its base every day. This continuous process is essential f...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2020.08.005
更新日期：2020-11-01 00:00:00
abstract：:The nucleus is a spatially organized compartment. The most obvious way in which this is achieved is at the level of chromosomes. The positioning of chromosomes with respect to nuclear landmarks and with respect to each other is both non-random and cell-type specific. This suggests that cells possess molecular mechanis...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2011.08.001
更新日期：2011-12-01 00:00:00
abstract：:Despite their small size and lack of obvious intracellular structures, bacteria have a complex and dynamic intracellular organization. Recent work has shown that many proteins, and even regions of the chromosome, are localized to specific subcellular regions that can change over time, sometimes extraordinarily fast. P...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0962-8924(00)01840-7
更新日期：2000-11-01 00:00:00
abstract：:Protists have evolved a myriad of highly specialized cytoskeletal organelles that expand known functional capacities of microtubule (MT) polymers. One such innovation - the ventral disc - is a cup-shaped MT organelle that the parasite Giardia uses to attach to the small intestine of its host. The molecular mechanisms ...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2017.10.007
更新日期：2018-02-01 00:00:00
abstract：:The architecture of the interphase nucleus remains a treasure trove for explorers of the 3D folding of macromolecules, like DNA, and of their related functions. Only recently has there been insight into how transient interactions of the genome and its associated proteins, in space and time, facilitate transcription, r...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/j.tcb.2016.04.011
更新日期：2016-07-01 00:00:00
