Abstract：
:Spatiotemporal Ca2+ signalling in the cytoplasm is currently understood as an excitation phenomenon by analogy with electrical excitation in the plasma membrane. In many cell types, Ca2+ waves and Ca2+ oscillations are mediated by inositol 1,4,5-trisphosphate (IP3) receptor/Ca2+ channels in the endoplasmic reticulum membrane, with positive feedback between cytosolic Ca2+ and IP3-induced Ca2+ release creating a regenerative process. Remarkable advances have been made in the past year in the analysis of subcellular Ca2+ microdomains using confocal microscopy and of Ca2+ influx pathways that are functionally coupled to IP3-induced Ca2+ release. Ca2+ signals can be conveyed into the nucleus and mitochondria. Ca2+ entry from outside the cell allows repetitive Ca2+ release by providing Ca2+ to refill the endoplasmic reticulum stores, thus giving rise to frequency-encoded Ca2+ signals.
journal_name
Curr Opin Cell Bioljournal_title
Current opinion in cell biologyauthors
Miyazaki Sdoi
10.1016/0955-0674(95)80027-1subject
Has Abstractpub_date
1995-04-01 00:00:00pages
190-6issue
2eissn
0955-0674issn
1879-0410pii
0955-0674(95)80027-1journal_volume
7pub_type
杂志文章,评审abstract：:The arrangement and dynamics of chromosomes inside the nucleus of mammalian cells have been studied intensively over the last two years. Although chromosomes are relatively immobile and occupy non-random positions in interphase, their dynamic movements in mitosis have traditionally been assumed to randomize this arran...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2003.10.014
更新日期：2003-12-01 00:00:00
abstract：:The activation of the serine/threonine kinase Raf-1 is proving to be an intricate multistep process. Recent advances in elucidating how Raf-1 becomes activated in response to signaling events have emphasized the role of phosphorylation and protein interactions in Raf-1 regulation. The picture clearly emerging is that ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(97)80060-9
更新日期：1997-04-01 00:00:00
abstract：:Cellular asymmetries have been proposed to play a role in plant embryogenesis. Genetic studies of Arabidopsis and other experimental approaches in several plant species have addressed the origins of cellular asymmetry in specific cases. Although zygote polarity, which precedes the formation of the apical-basal axis of...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(97)80087-7
更新日期：1997-12-01 00:00:00
abstract：:When PI3Ks are deregulated by aberrant surface receptors or modulators, accumulation of PtdIns(3,4,5)P3 leads to increased cell growth, proliferation and contact-independent survival. The PI3K/PKB/TOR axis controls protein synthesis and growth, while PtdIns(3,4,5)P3-mediated activation of Rho GTPases directs cell moti...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2005.02.011
更新日期：2005-04-01 00:00:00
abstract：:Myosins are a large family of structurally diverse mechanoenzymes which, upon interaction with actin filaments, convert energy from ATP hydrolysis into mechanical force. Consistent with the ubiquitous association of actin with membranes, many of these novel myosins are membrane-associated. In the past two years, evide...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(95)80017-4
更新日期：1995-08-01 00:00:00
abstract：:This past year has seen a significant increase in our understanding of eukaryotic origins of replication, of the proteins that identify these origins, of DNA sequences that promote their unwinding, and of transcription factors that stimulate origin activity. DNA replication begins at specific sites in both simple and ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(93)90008-e
更新日期：1993-06-01 00:00:00
abstract：:Protein degradation plays key roles in diverse pathways in cell division, growth and differentiation. Aberrant stabilization of crucial proteins participating in oncogenic pathways is often observed in cancer. The importance of proper protein turnover is exemplified by the SCF(Fbxw7) ubiquitin ligase, which is frequen...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2015.09.003
更新日期：2015-12-01 00:00:00
abstract：:Evolutionarily conserved from yeast to man, mitogen-activated protein kinase (MAPK) pathways respond to a variety of disparate signals which induce differentiation, proliferation, or changes in intracellular enzyme regulation. Recent advances have identified two new mammalian MAPK relatives, JNK1 and p38, and the path...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(95)80063-8
更新日期：1995-12-01 00:00:00
abstract：:Many receptors that sense the environment effect intracellular regulation through stimulation of heterotrimeric G proteins and the consequences thereof. While prominence was originally given to the alpha-subunits of G proteins as the pathway for downstream regulation, very active roles for the beta gamma-subunits have...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(94)90136-8
更新日期：1994-04-01 00:00:00
abstract：:The SR (Ser-Arg) proteins are a family of nuclear factors that play multiple important roles in splicing of mRNA precursors in metazoan organisms, functioning in both constitutive and regulated splicing. Certain of these functions are redundant, such that any single SR proteins will suffice, but other functions are un...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/S0955-0674(99)80050-7
更新日期：1999-06-01 00:00:00
abstract：:Several homeotic genes controlling flower development have been characterized in Antirrhinum and Arabidopsis. Comparisons of their mutant phenotypes, expression patterns and genetic interactions have revealed that many of the basic mechanisms controlling flower development have been conserved in evolution, although im...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(92)90120-2
更新日期：1992-12-01 00:00:00
abstract：:The pancreas is derived from the foregut endoderm during embryonic development. After gastrulation and endoderm germ layer formation complex morphogenetic events coupled with cell differentiation programs pattern the gut tube and induce pancreas organogenesis. This results in formation of exocrine, ductal and hormone-...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2019.07.002
更新日期：2019-12-01 00:00:00
abstract：:The concept that ostensibly tissue-specific stem cells can give rise to cells of heterologous lineages has gained support from studies using purified hematopoietic stem cells and sensitive donor-cell tracking methods. The ability to exploit these findings in clinical settings will probably depend on new insights into ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(00)00268-4
更新日期：2001-12-01 00:00:00
abstract：:The Arp2/3 complex is necessary for nucleating the formation of branched networks of actin filaments at the cell cortex, and an increasing number of proteins able to activate the Arp2/3 complex have been described. The Wiskott-Aldrich syndrome protein (WASP) family and cortactin comprise the large majority of the know...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(02)00015-7
更新日期：2003-02-01 00:00:00
abstract：:Recent discoveries have converged on the emerging enzymology that governs the G1-S phase transition of the mammalian somatic cell cycle. These discoveries have led to an appreciation of the regulatory role of proline-directed protein phosphorylation in molecular signalling, and have resulted in the identification of a...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(91)90136-m
更新日期：1991-04-01 00:00:00
abstract：:Research over the past two decades has defined a window of time in the early/mid G1 phase of the cell cycle during which mammalian cells are responsive to extracellular signals. Recent evidence indicates that this period ends with the phosphorylation of the retinoblastoma protein, enabling the cells to pass through th...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(97)80076-2
更新日期：1997-12-01 00:00:00
abstract：:Several recent scientific and technical developments have made it possible to postulate the use of the 'magic bullet' concept; that is, the identification of specific antigens present on tumor cells that can be targeted either by therapeutic antibodies or by small molecules. The use of monoclonal antibodies in cancer,...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(03)00106-6
更新日期：2003-10-01 00:00:00
abstract：:The cerebral cortex is composed of hundreds of different types of neurons, which underlie its ability to perform highly complex neural processes. How cortical neurons are generated during development constitutes a major challenge in developmental neurosciences with important implications for brain repair and diseases....
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2012.01.010
更新日期：2012-04-01 00:00:00
abstract：:Asymmetric cell division (ACD) is the fundamental process through which one cell divides into two cells with different fates. In animals, it is crucial for the generation of cell-type diversity and for stem cells, which use ACD both to self-renew and produce one differentiating daughter cell. One of the most prominent...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2019.07.018
更新日期：2020-02-01 00:00:00
abstract：:In the past year, major advances have been made in our understanding of the regulation of phosphoinositidase C, and of the action of the inositol trisphosphate receptor and how it may generate 'quantal' Ca2+ release. The functions of inositol tetrakisphosphate and of the 3-phosphorylated inositol lipids continue to ge...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(92)90035-b
更新日期：1992-04-01 00:00:00
abstract：:Germline stem cells (GSCs) sustain gametogenesis during the life of organisms. Recent progress has substantially extended our understanding of GSC behavior, including the mechanisms of stem cell self-renewal, asymmetric stem cell division, stem cell niches, dedifferentiation, and tissue aging. GSCs typically are highl...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2010.08.013
更新日期：2010-12-01 00:00:00
abstract：:The matrix metalloproteinases (MMPs) have been viewed as bulldozers, destroying the extracellular matrix to permit normal remodeling and contribute to pathological tissue destruction and tumor cell invasion. More recently, the identification of specific matrix and non-matrix substrates for MMPs and the elucidation of ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(00)00248-9
更新日期：2001-10-01 00:00:00
abstract：:Cilia are evolutionarily conserved, membrane-bound, microtubular projections emanating from the cell surface. They are assembled on virtually all cell types in the human body, with very few exceptions, and several recent reviews have covered the topic in great detail. The cilium is assembled from mature (mother) centr...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2013.04.011
更新日期：2013-08-01 00:00:00
abstract：:Chromatin in eukaryotic cells is a negatively charged polymer composed of DNA, histones, and various associated proteins. Over the past ten years, our view of chromatin has shifted from a static regular structure to a dynamic and highly variable configuration. While the details are not fully understood yet, chromatin ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2019.02.003
更新日期：2019-06-01 00:00:00
abstract：:Flowers and shoots are derived from specialized groups of stem cells termed meristems. Recent studies in Arabidopsis have identified factors that contribute to meristem structure and identity, such as CLAVATA1, CLAVATA3, and SHOOTMERISTEMLESS, which act in both shoot and flower meristems, as well as LEAFY and APETALA1...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(96)80089-5
更新日期：1996-12-01 00:00:00
abstract：:Eukaryotes silence gene expression in the presence of double-stranded RNA homologous to the silenced gene. Silencing occurs by the targeted degradation of mRNA. Biochemical reactions that recapitulate this phenomenon generate RNA fragments of 21--23 nucleotides from the double-stranded RNA. These stably associate with...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(00)00204-0
更新日期：2001-04-01 00:00:00
abstract：:The spatial separation of nuclear transcription and cytoplasmic translation in eukaryotic cells implies that mRNAs have to travel. On their journey, proteins involved in the various steps of transcript formation, processing and transport dynamically interact with mRNAs to form diverse messenger ribonucleoprotein compl...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2005.04.007
更新日期：2005-06-01 00:00:00
abstract：:The multimolecular WAVE regulatory (WRC) and Arp2/3 complexes are primarily responsible to generate pushing forces at migratory leading edges by promoting branch elongation of actin filaments. The architectural complexity of these units betrays the necessity to impose a tight control on their activity. This is exerted...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2013.04.001
更新日期：2013-10-01 00:00:00
abstract：:A standout feature of eukaryotic cells is the presence of organelles with distinct chemical compositions and physical properties, which aid in the accomplishment of specialized metabolic tasks. This complex topology, however, makes a permanent crosstalk between the organelles a necessity for the coordination of cellul...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2015.03.002
更新日期：2015-08-01 00:00:00
abstract：:As a 'double-edged sword', neutrophil (polymorphonuclear leukocyte) migration across epithelial-lined organs is an important component of host defense, but it also results in epithelial pathophysiology and disease symptoms. There have been significant advances in better understanding the mechanisms of how leukocytes c...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(03)00103-0
更新日期：2003-10-01 00:00:00
