Harpooning the Cvt complex to the phagophore assembly site.

Abstract:

:Autophagy is a catabolic process employed by eukaryotes to degrade and recycle intracellular components. When this pathway is induced by starvation conditions, part of the cytoplasm and organelles are sequestered into double-membrane vesicles called autophagosomes, and delivered into the lysosome/vacuole for degradation. In addition to the random bulk elimination of cytoplasmic contents, the selective removal of specific cargo molecules has also been described. These selective types of autophagy are characterized by the recruitment of the cargo destined for degradation in close proximity to the forming double-membrane vesicle that results in an exclusive incorporation (that is, without bulk cytoplasm). A number of factors required for selective types of autophagy have been identified. In particular, we have recently shown that actin and the actin-binding Arp2/3 protein complex are involved in the cytoplasm to vacuole targeting (Cvt) pathway, a yeast selective type of autophagy. The contribution at a molecular level of these factors, however, remains unknown. In this addendum, we present mechanistic models that take into account possible roles of actin and the Arp2/3 complex in the Cvt pathway.

journal_name

Autophagy

journal_title

Autophagy

authors

Monastyrska I,Reggiori F,Klionsky DJ

doi

10.4161/auto.6657

subject

Has Abstract

pub_date

2008-10-01 00:00:00

pages

914-6

issue

7

eissn

1554-8627

issn

1554-8635

pii

6657

journal_volume

4

pub_type

杂志文章
  • Could melatonin unbalance the equilibrium between autophagy and invasive processes?

    abstract::The Syrian hamster Harderian gland (HG) is a juxtaorbital organ exhibiting marked gender-associated morphological differences. Regarding contents of porphyrins, this gland is a good model for studying physiological oxidative stress effects, since both sexes present strong (in females) and moderate (in males) levels of...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.2.2.2351

    authors: Coto-Montes A,Tomás-Zapico C

    更新日期:2006-04-01 00:00:00

  • Macroautophagy: protector in the diabetes drama?

    abstract::Macroautophagy ("autophagy") is regulated by the same insulin-amino acid-mTOR signaling pathway that controls protein synthesis. Although the literature does not so far include any direct studies confirming this, we expect autophagy to increase during insulin resistance. We discuss the possibility that this may be a u...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.4449

    authors: Meijer AJ,Codogno P

    更新日期:2007-09-01 00:00:00

  • MitoTimer probe reveals the impact of autophagy, fusion, and motility on subcellular distribution of young and old mitochondrial protein and on relative mitochondrial protein age.

    abstract::To study mitochondrial protein age dynamics, we targeted a time-sensitive fluorescent protein, MitoTimer, to the mitochondrial matrix. Mitochondrial age was revealed by the integrated portions of young (green) and old (red) MitoTimer protein. Mitochondrial protein age was dependent on turnover rates as pulsed synthesi...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.26503

    authors: Ferree AW,Trudeau K,Zik E,Benador IY,Twig G,Gottlieb RA,Shirihai OS

    更新日期:2013-11-01 00:00:00

  • Rph1 mediates the nutrient-limitation signaling pathway leading to transcriptional activation of autophagy.

    abstract::To maintain proper cellular homeostasis, the magnitude of autophagy activity has to be finely tuned in response to environmental changes. Many aspects of autophagy regulation have been extensively studied: pathways integrating signals through the master regulators TORC1 and PKA lead to multiple post-translational modi...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.1080/15548627.2015.1018503

    authors: Bernard A,Klionsky DJ

    更新日期:2015-04-03 00:00:00

  • Atg5 and Ambra1 differentially modulate neurogenesis in neural stem cells.

    abstract::Neuroepithelial cells undergoing differentiation efficiently remodel their cytoskeleton and shape in an energy-consuming process. The capacity of autophagy to recycle cellular components and provide energy could fulfill these requirements, thus supporting differentiation. However, little is known regarding the role of...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.8.2.18535

    authors: Vázquez P,Arroba AI,Cecconi F,de la Rosa EJ,Boya P,de Pablo F

    更新日期:2012-02-01 00:00:00

  • Impaired mitophagy at the heart of injury.

    abstract::Recent publications link mitophagy mediated by PINK1 and Parkin with cardioprotection and attenuation of inflammation and cell death. The field is in need of methods to monitor mitochondrial turnover in vivo to support the development of new therapies targeting mitochondrial turnover. ...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.7.12.18175

    authors: Gottlieb RA,Mentzer RM Jr,Linton PJ

    更新日期:2011-12-01 00:00:00

  • Facilitated ethanol metabolism promotes cardiomyocyte contractile dysfunction through autophagy in murine hearts.

    abstract::Chronic drinking leads to myocardial contractile dysfunction where ethanol metabolism plays an essential role. Acetaldehyde, the main ethanol metabolite, mediates alcohol-induced cell injury although the underlying mechanism is still elusive. This study was designed to examine the mechanism involved in accelerated eth...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.18997

    authors: Guo R,Hu N,Kandadi MR,Ren J

    更新日期:2012-04-01 00:00:00

  • Potential role of autophagy in behavioral changes of the flank organ.

    abstract::The flank organ of the Syrian hamster, which shows a biodynamic response to androgen stimulation, is considered a good model for studying the androgen effect on sebaceous gland and hair. This organ is susceptible to programmed cell death (PCD), a prominent feature associated with sexual organ adjustment. We have recen...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.5.2.7619

    authors: Vega-Naredo I,Tomas-Zapico C,Coto-Montes A

    更新日期:2009-02-01 00:00:00

  • Dismantling the autophagic arsenal when it is time to die: concerted AMBRA1 degradation by caspases and calpains.

    abstract::Under stress conditions cells activate different response pathways which result in cell survival or apoptosis depending on: (1) the nature of the insults, (2) the type, if acute or chronic stress, and (3) how long the stress persists. Generally, autophagy is induced early to sustain cell survival and inhibit cell deat...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.20671

    authors: Corazzari M,Fimia GM,Piacentini M

    更新日期:2012-08-01 00:00:00

  • Spread of neuronal degeneration in a dopaminergic, Lrrk-G2019S model of Parkinson disease.

    abstract::Flies expressing the most common Parkinson disease (PD)-related mutation, LRRK2-G2019S, in their dopaminergic neurons show loss of visual function and degeneration of the retina, including mitochondrial abnormalities, apoptosis and autophagy. Since the photoreceptors that degenerate are not dopaminergic, this demonstr...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.24397

    authors: Hindle SJ,Elliott CJ

    更新日期:2013-06-01 00:00:00

  • Autophagy proteins play cytoprotective and cytocidal roles in leucine starvation-induced cell death in Saccharomyces cerevisiae.

    abstract::Autophagy is essential for prolonging yeast survival during nutrient deprivation; however, this report shows that some autophagy proteins may also be accelerating population death in those conditions. While leucine starvation caused YCA1-mediated apoptosis characterized by increased annexin V staining, nitrogen depriv...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.19314

    authors: Dziedzic SA,Caplan AB

    更新日期:2012-05-01 00:00:00

  • Therapeutic effects of remediating autophagy failure in a mouse model of Alzheimer disease by enhancing lysosomal proteolysis.

    abstract::The extensive autophagic-lysosomal pathology in Alzheimer disease (AD) brain has revealed a major defect: in the proteolytic clearance of autophagy substrates. Autophagy failure contributes on several levels to AD pathogenesis and has become an important therapeutic target for AD and other neurodegenerative diseases. ...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.7.7.15596

    authors: Yang DS,Stavrides P,Mohan PS,Kaushik S,Kumar A,Ohno M,Schmidt SD,Wesson DW,Bandyopadhyay U,Jiang Y,Pawlik M,Peterhoff CM,Yang AJ,Wilson DA,St George-Hyslop P,Westaway D,Mathews PM,Levy E,Cuervo AM,Nixon RA

    更新日期:2011-07-01 00:00:00

  • Role for nanomaterial-autophagy interaction in neurodegenerative disease.

    abstract::Nanotechnology is the control and manipulation of materials in the size range of 1-100 nm. Due to increasing research into the potential beneficial applications of nanotechnology, there is an urgent need for the study of possible health risks. Several researchers, including those in our laboratory, have demonstrated e...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.7142

    authors: Stern ST,Johnson DN

    更新日期:2008-11-01 00:00:00

  • Autophagy proteins promote hepatitis C virus replication.

    abstract::Autophagy is a fundamental process for anti-viral defense. Not surprisingly, viruses have developed strategies to subvert or use autophagy for their own benefit. In cell culture, autophagy proteins are proviral factors that favor initiation of hepatitis C virus (HCV) infection. Autophagy proteins are required for tran...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.5.8.10219

    authors: Dreux M,Chisari FV

    更新日期:2009-11-01 00:00:00

  • Multistep regulation of TFEB by MTORC1.

    abstract::The master regulator of lysosome biogenesis, TFEB, is regulated by MTORC1 through phosphorylation at S211, and a S211A mutation increases nuclear localization. However, TFEBS211A localizes diffusely in both cytoplasm and nucleus and, as we show, retains regulation by MTORC1. Here, we report that endogenous TFEB is pho...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.1080/15548627.2016.1271514

    authors: Vega-Rubin-de-Celis S,Peña-Llopis S,Konda M,Brugarolas J

    更新日期:2017-03-04 00:00:00

  • TBC1D20 mediates autophagy as a key regulator of autophagosome maturation.

    abstract::In humans, loss of TBC1D20 (TBC1 domain family, member 20) protein function causes Warburg Micro syndrome 4 (WARBM4), an autosomal recessive disorder characterized by congenital eye, brain, and genital abnormalities. TBC1D20-deficient mice exhibit ocular abnormalities and male infertility. TBC1D20 is a ubiquitously ex...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.1080/15548627.2016.1199300

    authors: Sidjanin DJ,Park AK,Ronchetti A,Martins J,Jackson WT

    更新日期:2016-10-02 00:00:00

  • Mice deficient in the Vici syndrome gene Epg5 exhibit features of retinitis pigmentosa.

    abstract::Autophagy helps to maintain cellular homeostasis by removing misfolded proteins and damaged organelles, and generally acts as a cytoprotective mechanism for neuronal survival. Here we showed that mice deficient in the Vici syndrome gene Epg5, which is required for autophagosome maturation, show accumulation of ubiquit...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.1080/15548627.2016.1238554

    authors: Miao G,Zhao YG,Zhao H,Ji C,Sun H,Chen Y,Zhang H

    更新日期:2016-12-01 00:00:00

  • Deficiency of mitophagy receptor FUNDC1 impairs mitochondrial quality and aggravates dietary-induced obesity and metabolic syndrome.

    abstract::There is overwhelming evidence for an association between impaired mitochondrial function and metabolic syndrome. Mitophagy, a process that selectively removes damaged mitochondria via a specialized form of autophagy, is essential for mitochondrial quality control (mitochondrial QC) and metabolic homeostasis. We thus ...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.1080/15548627.2019.1596482

    authors: Wu H,Wang Y,Li W,Chen H,Du L,Liu D,Wang X,Xu T,Liu L,Chen Q

    更新日期:2019-11-01 00:00:00

  • Astrocytes promote progression of breast cancer metastases to the brain via a KISS1-mediated autophagy.

    abstract::Formation of metastases, also known as cancer dissemination, is an important stage of breast cancer (BrCa) development. KISS1 expression is associated with inhibition of metastases development. Recently we have demonstrated that BrCa metastases to the brain exhibit low levels of KISS1 expression at both mRNA and prote...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.1080/15548627.2017.1360466

    authors: Kaverina N,Borovjagin AV,Kadagidze Z,Baryshnikov A,Baryshnikova M,Malin D,Ghosh D,Shah N,Welch DR,Gabikian P,Karseladze A,Cobbs C,Ulasov IV

    更新日期:2017-01-01 00:00:00

  • The role of MTMR14 in autophagy and in muscle disease.

    abstract::Phosphoinositides (PIs) are a group of low-abundance phospholipids that play a critical role in the control of organelle and membrane traffic. There is strong evidence that specific PIs are also important for the regulation of autophagy. PIs are modified by a complex network of lipid kinases and phosphatases. A recent...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.6.6.12624

    authors: Gibbs EM,Feldman EL,Dowling JJ

    更新日期:2010-08-01 00:00:00

  • Reticulocyte mitophagy: monitoring mitochondrial clearance in a mammalian model.

    abstract::Mitochondria are the primary site of energy production in animal cells. In mitochondria, the flow of electrons through the electron transport chain creates a potential difference across the inner membrane, which is utilized for ATP production. However, due to inherent inefficiencies in electron transport, reactive oxy...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.6.3.11245

    authors: Zhang J,Ney PA

    更新日期:2010-04-01 00:00:00

  • Disease relevance of phosphorylated ubiquitin (p-S65-Ub).

    abstract::Here, we present a summary of our recent findings on the (patho-)physiological relevance of PINK1-phosphorylated ubiquitin (p-S65-Ub). Using novel polyclonal antibodies, we find that p-S65-Ub specifically accumulates on damaged mitochondria. Phosphorylation of ubiquitin on serine 65 depends on the activity of PINK1 an...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.1080/15548627.2015.1091912

    authors: Fiesel FC,Springer W

    更新日期:2015-11-02 00:00:00

  • The C. elegans ATG101 homolog EPG-9 directly interacts with EPG-1/Atg13 and is essential for autophagy.

    abstract::Autophagy is an evolutionarily conserved catabolic process that involves the engulfment of cytoplasmic contents in a closed double-membrane structure, called the autophagosome, and their subsequent delivery to the vacuole/lysosomes for degradation. Genetic screens in Saccharomyces cerevisiae have identified more than ...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.21163

    authors: Liang Q,Yang P,Tian E,Han J,Zhang H

    更新日期:2012-10-01 00:00:00

  • Inhibition of autophagy enhances the anticancer activity of silver nanoparticles.

    abstract::Silver nanoparticles (Ag NPs) are cytotoxic to cancer cells and possess excellent potential as an antitumor agent. A variety of nanoparticles have been shown to induce autophagy, a critical cellular degradation process, and the elevated autophagy in most of these situations promotes cell death. Whether Ag NPs can indu...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.36293

    authors: Lin J,Huang Z,Wu H,Zhou W,Jin P,Wei P,Zhang Y,Zheng F,Zhang J,Xu J,Hu Y,Wang Y,Li Y,Gu N,Wen L

    更新日期:2014-01-01 00:00:00

  • Simultaneous assessment of autophagy and apoptosis using multispectral imaging cytometry.

    abstract::Multiple stress pathways result in the induction of autophagy and apoptosis. Current methods (e.g., protein gel blot, microscopy) do not offer quantitative single-cell resolution, thus making it difficult to discern if these pathways are mutually exclusive or, in some situations, cooperative in executing cell death. W...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.7.9.16252

    authors: de la Calle C,Joubert PE,Law HK,Hasan M,Albert ML

    更新日期:2011-09-01 00:00:00

  • A role for TOR complex 2 signaling in promoting autophagy.

    abstract::The conserved target of rapamycin (TOR) kinase is a central regulator of cell growth in response to nutrient availability. TOR forms 2 structurally and functionally distinct complexes, TORC1 and TORC2, and negatively regulates autophagy via TORC1. Here we demonstrate TOR also operates independently through the TORC2 s...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.36262

    authors: Vlahakis A,Powers T

    更新日期:2014-01-01 00:00:00

  • Targeted therapy for the loss of von Hippel-Lindau in renal cell carcinoma: a novel molecule that induces autophagic cell death.

    abstract::Radiation and conventional cytotoxic chemotherapies are ineffective in treating renal cancer. Approximately 75 percent of renal cell carcinoma (RCC) is associated with an inactivation of the tumor suppressor gene von Hippel-Lindau (VHL). We exploited the possibility of targeting VHL-deficient RCC through synthetic let...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.6785

    authors: Turcotte S,Sutphin PD,Giaccia AJ

    更新日期:2008-10-01 00:00:00

  • The ULK1 complex: sensing nutrient signals for autophagy activation.

    abstract::The Atg1/ULK1 complex plays a central role in starvation-induced autophagy, integrating signals from upstream sensors such as MTOR and AMPK and transducing them to the downstream autophagy pathway. Much progress has been made in the last few years in understanding the mechanisms by which the complex is regulated throu...

    journal_title:Autophagy

    pub_type: 杂志文章,评审

    doi:10.4161/auto.23323

    authors: Wong PM,Puente C,Ganley IG,Jiang X

    更新日期:2013-02-01 00:00:00

  • Keap1 facilitates p62-mediated ubiquitin aggregate clearance via autophagy.

    abstract::The accumulation of ubiquitin-positive protein aggregates has been implicated in the pathogenesis of neurodegenerative diseases, heart disease and diabetes. Emerging evidence indicates that the autophagy lysosomal pathway plays a critical role in the clearance of ubiquitin aggregates, a process that is mediated by the...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.6.5.12189

    authors: Fan W,Tang Z,Chen D,Moughon D,Ding X,Chen S,Zhu M,Zhong Q

    更新日期:2010-07-01 00:00:00

  • Role of autophagy in the host defense against Toxoplasma gondii in astrocytes.

    abstract::Autophagy has recently been implicated in the host defense against the intracellular protozoan pathogen, Toxoplasma gondii, a major opportunistic pathogen of the central nervous system in immunosuppressed individuals. In both IFN gamma-activated macrophages and astrocytes, the p47 GTPases traffic to the T. gondii para...

    journal_title:Autophagy

    pub_type: 杂志文章

    doi:10.4161/auto.5.2.7637

    authors: Halonen SK

    更新日期:2009-02-01 00:00:00