Abstract：
:Leukocytes are key cellular components of innate immunity. These phagocytic cells respond to bacteria at sites of infection through chemotactic sensing and directed motility regulated by Rho GTPases. The development of sensitive probes of Rho GTPase dynamics has provided insights into the temporal and spatial aspects of GTPase regulation during chemotaxis and subsequent microbial phagocytosis. The resulting destruction of ingested bacteria by means of reactive oxygen species (ROS) depends on a Rac-regulated "molecular switch" that is modulated by antagonistic crosstalk involving Cdc42. Recent studies of leukocytes derived from Rac1- and Rac2-knockout mice have shown that these highly homologous GTPases have unique biological roles. An understanding of the biochemical basis for such distinct activities should provide novel insights into the molecular details of Rho GTPase function and regulation in innate immunity.
journal_name
Trends Cell Bioljournal_title
Trends in cell biologyauthors
Bokoch GMdoi
10.1016/j.tcb.2005.01.002subject
Has Abstractpub_date
2005-03-01 00:00:00pages
163-71issue
3eissn
0962-8924issn
1879-3088pii
S0962-8924(05)00016-4journal_volume
15pub_type
杂志文章,评审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 glycoproteome, the ensemble of glycans and their carrier proteins, plays major roles in multicellular life by regulating cell interactions with their environment. How information is encoded into the glycome, in other words how glycosylation is modulated in response to signals, remains largely unclear. Glycosylatio...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2015.12.004
更新日期：2016-05-01 00:00:00
abstract：:Centromere formation is a complex process that involves the packaging of DNA into a centromere-unique chromatin, chemical modification and the seeding of kinetochore and associated proteins. The early steps in this process, in which a chromosomal region is marked for centromerization (that is, to become resolutely com...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0962-8924(00)01739-6
更新日期：2000-05-01 00:00:00
abstract：:Sustained pro-proliferative signaling is one of the hallmarks of cancer. Although it is generally understood that the oncogenic signaling pathways are overactivated, or at least abnormally activated, in cancer cells, important mechanistic details of such abnormal activation remain unresolved. Among these details are s...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2019.08.005
更新日期：2019-11-01 00:00:00
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：:Why are women so under-represented at the top echelons of science? Why do so many drop out just as their careers should be blossoming? Are women in science being actively discriminated against by their peers, and, if, so what can be done about this? These were just a few of the puzzles reflected upon at a recent Europ...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/s0962-8924(01)02182-1
更新日期：2001-11-01 00:00:00
abstract：:Mounting evidence suggests that DNA damage plays a central role in aging. Multiple tiers of defense have evolved to reduce the accumulation of DNA damage, including reducing damaging molecules, repairing DNA damage, and inducing senescence or apoptosis in response to persistent DNA damage. Mutations in or failure of t...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2019.12.001
更新日期：2020-02-01 00:00:00
abstract：:The manner by which the organization and behaviors of cells arise from the activities of their constituent molecules remains poorly understood. Approaches from the physical sciences for studying collective properties may help with this difficult problem, but they must be adapted to account for the specific attributes ...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/j.tcb.2015.08.011
更新日期：2015-12-01 00:00:00
abstract：:The endoplasmic reticulum (ER) contains a variety of specialized proteins that interact with secretory proteins and facilitate their uptake into transport vesicles destined for the Golgi apparatus. These accessory proteins might induce and/or stabilize a conformation that is required for secretion competence or they m...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0962-8924(98)01414-7
更新日期：1999-01-01 00:00:00
abstract：:During mRNA translation, the genetic information stored in mRNA is translated into a protein sequence. It is imperative that the genetic information is translated with high precision. Surprisingly, however, recent experimental evidence has demonstrated that translation can be highly heterogeneous, even among different...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2020.04.008
更新日期：2020-08-01 00:00:00
abstract：:Understanding the basic mechanisms underlying chromatin dynamics during DNA replication in eukaryotic cells is of fundamental importance. Beyond DNA compaction, chromatin organization represents a means to regulate genome function. Thus, the inheritance and maintenance of the DNA sequence, along with its organization ...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2008.10.002
更新日期：2009-01-01 00:00:00
abstract：:A major quest in cell biology is to understand the molecular mechanisms underlying the high plasticity of the microtubule network at different stages of the cell cycle, and during and after differentiation. Initial reports described the centrosomal localization of proteins possessing transforming acidic coiled-coil (T...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2008.06.005
更新日期：2008-08-01 00:00:00
abstract：:During clathrin-mediated endocytosis, dynamin promotes the formation of clathrin-coated vesicles, but its mode of action is unresolved. In a recent study, Macia and colleagues made use of dynasore, a dynamin-specific inhibitor, to show that dynamin plays a dual role in endocytosis: they confirmed that dynamin is invol...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/j.tcb.2006.10.004
更新日期：2006-12-01 00:00:00
abstract：:Phagocytosis is a receptor-mediated, actin-dependent process of internalization of large extracellular particles, such as pathogens or apoptotic cells. Engulfment of phagocytic targets requires the activity of myosins, actin-dependent molecular motors, which perform a variety of functions at distinct steps during phag...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2019.11.002
更新日期：2020-02-01 00:00:00
abstract：:Asymmetric cell divisions are central to the generation of cell-fate diversity because factors that are present in a mother cell and distributed unequally at cell division can generate distinct daughters. The process o f asymmetric cell division can be described as consisting of three steps: setting up an asymmetric c...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/0962-8924(96)10035-0
更新日期：1996-10-01 00:00:00
abstract：:Deregulated WNT signaling has been shown to favor malignant transformation, tumor progression, and resistance to conventional cancer therapy in a variety of preclinical and clinical settings. Accumulating evidence suggests that aberrant WNT signaling may also subvert cancer immunosurveillance, hence promoting immunoev...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2018.08.005
更新日期：2019-01-01 00:00:00
abstract：:Cyclin-dependent kinase 2 (CDK2) regulates diverse aspects of the mammalian cell cycle. Most cancer cells contain mutations in the pathways that control CDK2, and CDK2 activity has received much attention as a target for cancer therapy. However, a recent report demonstrating that some cancer cells can proliferate with...
journal_title：Trends in cell biology
pub_type： 评论,杂志文章
doi：10.1016/s0962-8924(03)00148-x
更新日期：2003-08-01 00:00:00
abstract：:Diabetes is a metabolic disease affecting nearly 300 million individuals worldwide. Both types of diabetes (1 and 2) are characterized by loss of functional pancreatic β-cell mass causing different degrees of insulin deficiency. The Bcl-2 family has a double-edged effect in diabetes. These proteins are crucial control...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2011.03.001
更新日期：2011-07-01 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：:Transfer of proteins and lipids between the various membrane-bound subcellular compartments of the eukaryotic cell is mediated by transport vesicles. The development of cell-free assays has allowed rapid progress towards a molecular description of the formation, or budding, of these vesicles. This article reviews and ...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/0962-8924(91)90018-5
更新日期：1991-12-01 00:00:00
abstract：:The cell surface receptor Fas/APO-1 and its ligand have recently been identified as important mediators of apoptosis. Both molecules are crucial for the maintenance of a sound immune system, and when defective they give rise to severe autoimmune disorders. Understanding the mechanism and regulation of Fas/APO-1-trigge...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/0962-8924(94)90102-3
更新日期：1994-12-01 00:00:00
abstract：:To battle adverse internal and external conditions and maintain homeostasis, diploid organisms employ various cellular processes, such as proliferation and apoptosis. In some tissues, an alternative mechanism, endoreplication, is employed toward similar goals. Endoreplication is an evolutionarily conserved cell cycle ...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2018.02.006
更新日期：2018-06-01 00:00:00
abstract：:Mucins are heavily glycosylated high molecular weight glycoproteins, which are involved in the protection and lubrication of luminal epithelial surfaces. Transmembrane mucins also engage in signal transduction, through extracellular domain-mediated ligand binding or by interacting with receptors for growth and differe...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2006.07.006
更新日期：2006-09-01 00:00:00
abstract：:Land plants have developed highly sophisticated intercellular channels called plasmodesmata (PD) that mediate the cell-to-cell trafficking of signaling molecules, including non-cell autonomous proteins (NCAPs) and RNAs. Until recently, the biological significance of this position-dependent intercellular signaling syst...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2009.07.003
更新日期：2009-10-01 00:00:00
abstract：:Collective cell migration results from the establishment and maintenance of collective polarization, mechanocoupling, and cytoskeletal kinetics. The guidance of collective cell migration depends on a reciprocal process between cell-intrinsic multicellular organization with leader-follower cell behavior and results in ...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2015.06.003
更新日期：2015-09-01 00:00:00
abstract：:A hallmark of pancreatic ductal adenocarcinoma cancer (PDAC) cells is metabolic reprogramming that facilitates tumor progression. In a recent paper published in Molecular Cell, Nagarajan et al. discover that paraoxonase (PON)2 stimulates glucose transporter (GLUT)1-mediated glucose uptake, prevents AMP-activated prote...
journal_title：Trends in cell biology
pub_type： 评论,杂志文章
doi：10.1016/j.tcb.2017.09.003
更新日期：2017-11-01 00:00:00
abstract：:The mitochondrial electron transport chain is the major source for the production of oxygen radicals. Mitochondria-generated reactive oxygen species (mROS) have been implicated in decreasing the life span and contributing to age-related diseases (known as the free radical theory of aging). Recently, the serine/threoni...
journal_title：Trends in cell biology
pub_type： 杂志文章
doi：10.1016/j.tcb.2006.11.003
更新日期：2007-01-01 00:00:00
abstract：:Membrane trafficking pathways function to sort and transport cargoes to various intracellular compartments and to the plasma membrane. This allows precise spatiotemporal control of processes such as signal transduction, which in turn is crucial for complex cell functions such as cell division, migration and polarity. ...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.tcb.2011.02.003
更新日期：2011-05-01 00:00:00
abstract：:Decreased aerobic (hypoxic) conditions in tumors induce the release of cytokines that promote vascularization and thereby enhance tumor growth and metastasis. Recent major advances have provided insight into the role hypoxia plays in cancer biology. The domain structure of the hypoxia-inducible factor 1alpha (HIF-1alp...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0962-8924(01)02126-2
更新日期：2001-11-01 00:00:00
abstract：:Regulation of cell shape is a poorly understood yet central issue in cell biology. Recent experiments indicate that FH proteins link cellular signalling pathways to changes in cell shape. Members of the FH protein family play essential roles in cytokinesis and in driving alterations in cell polarity. This review discu...
journal_title：Trends in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0962-8924(97)01217-8
更新日期：1998-03-01 00:00:00
