Abstract：
:Senescence represents a permanent exit from the cell cycle and its role in curtailing the proliferation of damaged and potentially oncogenic cells has relevance both as a front-line defense against cancer and as an underlying cause of aging. The retinoblastoma protein (RB) and p53 tumor suppressors are central to the process and the growth arrest is primarily implemented by the cyclin-dependent kinase (CDK) inhibitors, p16INK4a and p21CIP1. In contrast to terminal differentiation, senescence is a general response to a diverse range of cellular stresses and is typically accompanied by a characteristic set of phenotypic changes. Of particular note is a secretory program whose autocrine and paracrine effects can advertize the presence of senescent cells within a tissue and promote their clearance by the immune system. In this short review, we will highlight recent advances in understanding the relationship between senescence and aging and the distinction between senescence and terminal differentiation, from a cell cycle perspective.
journal_name
Curr Opin Cell Bioljournal_title
Current opinion in cell biologyauthors
Chandler H,Peters Gdoi
10.1016/j.ceb.2013.07.005subject
Has Abstractpub_date
2013-12-01 00:00:00pages
765-71issue
6eissn
0955-0674issn
1879-0410pii
S0955-0674(13)00119-1journal_volume
25pub_type
杂志文章,评审abstract：:Inter-organelle membrane contact sites are zones where heterologous membranes, usually the endoplasmic reticulum plus a partner organelle, come into close apposition. These sites are very poorly understood because so few of their components have been identified; however, it is clear that they are specialised for traff...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2006.06.011
更新日期：2006-08-01 00:00:00
abstract：:Far from being simple 'bags' of enzymes, bacteria are richly endowed with ultrastructures that challenge and expand standard definitions of the cytoskeleton. Here we review rods, rings, twisted pairs, tubes, sheets, spirals, moving patches, meshes and composites, and suggest defining the term 'bacterial cytoskeleton' ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2012.10.019
更新日期：2013-02-01 00:00:00
abstract：:Several proteins involved in exocytosis have been identified recently, but it is still completely unclear which molecules perform the fusion event itself. Although in viral fusion the fusion proteins are known, even there the molecular mechanism remains controversial. Investigation of single fusion events by electroph...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(95)80007-7
更新日期：1995-08-01 00:00:00
abstract：:While canonical 3'end modifications of mRNAs or tRNAs are well established, recent technological advances in RNA analysis have given us a glimpse of how widespread other types of distinctive 3'end modifications appear to be. Next to alternative nuclear or cytoplasmic polyadenylation mechanisms, evidence accumulated fo...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2012.03.011
更新日期：2012-06-01 00:00:00
abstract：:The development of a complex multicellular organism requires a coordination of growth and cell division under the control of patterning mechanisms. Studies in yeast have pioneered our understanding of the relationship between growth and cell division. In recent years, many of the pathways that regulate growth in multi...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(00)00284-2
更新日期：2001-12-01 00:00:00
abstract：:The compartmentalization of proteins within the nucleus or cytoplasm of a eukaryotic cell offers opportunity for regulation of cell cycle progression and signalling pathways. Nuclear localization of proteins is determined by their ability to interact with specific nuclear import and export factors. In the past year, s...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(99)80032-5
更新日期：1999-04-01 00:00:00
abstract：:Two key processes are in the basis of morphogenesis: the spatial allocation of cell types in fields of naïve cells and the regulation of growth. Both are controlled by morphogens, which activate target genes in the growing tissue in a concentration-dependent manner. Thus the morphogen model is an intrinsically quantit...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2008.01.008
更新日期：2008-04-01 00:00:00
abstract：:In both prokaryotes and eukaryotes, transcription has been described as being temporally discontinuous, most genes being active mainly during short activity windows interspersed by silent periods. In mammalian cells, recent studies performed at the single cell level have revealed that transcriptional kinetics are high...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2011.09.004
更新日期：2011-12-01 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：:Determining the premalignant lesions that develop into malignant tumours remains a daunting task. Brain tumours are frequently characterised by a block in differentiation, implying that normal developmental pathways become hijacked during tumourigenesis. However, the heterogeneity of stem cells and their progenitors i...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2019.06.001
更新日期：2019-10-01 00:00:00
abstract：:Cell polarization is critical for lineage segregation and morphogenesis during mammalian embryogenesis. However, the processes and mechanisms that establish cell polarity in the mammalian embryo are not well understood. Recent studies suggest that unique regulatory mechanisms are deployed by the mouse embryo to establ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2019.11.005
更新日期：2020-02-01 00:00:00
abstract：:Cell competition is a short-range intercellular communication, in which cells compare their fitness with that of their neighbors and eliminate the cells with relatively lower fitness. It is considered important for the formation and maintenance of healthy tissues; however, its exact role during development, especially...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2020.07.001
更新日期：2020-12-01 00:00:00
abstract：:The mitotic and meiotic cell cycle share many regulators, but there are also important differences between the two processes. The meiotic maturation of Xenopus oocytes has proved useful for understanding the regulation of Cdc2-cyclin-B, a key activator of G2/M progression. New insights have been made recently into the...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(00)00150-2
更新日期：2000-12-01 00:00:00
abstract：:During the preceding year significant progress has been made in our understanding of laminin structure and expression. Highlights include the identification of new subunit chains and molecular isoforms as well as new information on tissue-specific gene expression, laminin self-assembly and interactions with other matr...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(93)90038-r
更新日期：1993-10-01 00:00:00
abstract：:Oocyte cytoplasmic factors can reprogramme the sperm genome during fertilisation or the somatic cell genome during cloning. Diverse reprogramming machinery acts sequentially and interdependently on the imported genome to drive it to totipotency, but their three-dimensional interactions in the cytoplasm remain unknown....
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(03)00031-0
更新日期：2003-06-01 00:00:00
abstract：:Evolution of the mammalian sex chromosomes heavily impacts on the expression of X-encoded genes, both in marsupials and placental mammals. The loss of genes from the Y chromosome forced a two-fold upregulation of dose sensitive X-linked homologues. As a corollary, female cells would experience a lethal dose of X-linke...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2012.02.004
更新日期：2012-06-01 00:00:00
abstract：:Regulation of messenger RNA (mRNA) transcription, processing and translation occurs in the context of biomolecular condensates. How the physical properties of condensates connect with their biological regulatory functions is an ongoing area of interest, particularly for RNA metabolic pathways. Phosphorylation has emer...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2020.12.007
更新日期：2021-01-12 00:00:00
abstract：:Misfolded and mistargeted proteins in the early secretory pathway present significant risks to the cell. A diverse and integrated network of quality control pathways protects the cell from these threats. We focus on the discovery of new mechanisms that contribute to this protective network. Biochemical and structural ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2020.04.002
更新日期：2020-08-01 00:00:00
abstract：:The importance of cell migration for both normal physiological functions and disease processes has been clear for the past 50 years. Although investigations of two-dimensional (2D) migration in regular tissue culture have elucidated many important molecular mechanisms, recent evidence suggests that cell migration depe...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2013.06.004
更新日期：2013-10-01 00:00:00
abstract：:Protection from cancer and ensured longevity are tightly linked in mammals. One of the fundamental mechanisms contributing to both is the cellular response to DNA damage. The appropriate response is an initial attempt at repair, but if the damage is too extensive or compromises DNA metabolism, a signalling cascade tri...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(03)00018-8
更新日期：2003-04-01 00:00:00
abstract：:Signaling involves the coordinated action of multiple molecules including stimuli, receptors and enzymes part of which interact with the transcriptional machinery and target chromatin. Signaling systems regulate the cell events responsible for survival, development and homeostasis. Many of the signaling pathways induc...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2013.02.016
更新日期：2013-06-01 00:00:00
abstract：:Concomitant with packaging the genome, the cell nucleus must also spatially organize the nucleoplasm. This complex mixture of proteins and nucleic acids partitions into a variety of phase-separated, membraneless organelles called nuclear bodies. Significant progress has been made in understanding the relationship betw...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2017.03.003
更新日期：2017-06-01 00:00:00
abstract：:For the proper segregation of sister chromatids before cell division, each sister kinetochore must attach to microtubules that extend to opposite spindle poles. This process is called bipolar microtubule attachment or chromosome bi-orientation. The mechanism for chromosome bi-orientation lies at the heart of chromosom...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/s0955-0674(02)00328-9
更新日期：2002-06-01 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：:Recently there have been advances in studies of the molecular biology of the receptor for CNTF. In contrast with the receptors for other known neurotrophic factors, which belong to the family of receptor tyrosine kinases, the CNTF receptor belongs to the family of cytokine receptors. This review will describe the stru...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(93)90117-9
更新日期：1993-04-01 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：:Commitment to division requires that cells sense, interpret, and respond appropriately to multiple signals. In most eukaryotes, cells commit to division in G1 before DNA replication. Beyond a point, known as Start in yeast and the restriction point in mammals, cells will proceed through the cell cycle despite changes ...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ceb.2013.07.010
更新日期：2013-12-01 00:00:00
abstract：:A dynamic and reciprocal flow of information between cells and the extracellular matrix contributes significantly to the regulation of form and function in developing systems. Signals generated by the extracellular matrix do not act in isolation. Instead, they are processed within the context of global signalling hier...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(95)80117-0
更新日期：1995-10-01 00:00:00
abstract：:Recent evidence corroborates the idea that the structure of the nucleolus need not be strictly maintained for proper function, suggesting that the organelle is composed of supramolecular assemblies formed during rRNA synthesis. More controversial is whether the nucleolus exists in the absence of rRNA synthesis and whe...
journal_title：Current opinion in cell biology
pub_type： 杂志文章,评审
doi：10.1016/0955-0674(95)80085-9
更新日期：1995-06-01 00:00:00
abstract：:The septins are a novel family of proteins that were first recognized in yeast as proteins associated with the neck filaments. Recent work has shown that septins are also present in other fungi, insects, and vertebrates. Despite the apparent differences in modes of cytokinesis amongst species, septins appear to be ess...
journal_title：Current opinion in cell biology
pub_type： 杂志文章
doi：10.1016/s0955-0674(96)80054-8
更新日期：1996-02-01 00:00:00
