keyword
MENU ▼
Read by QxMD icon Read
search

Caveolae

keyword
https://www.readbyqxmd.com/read/29774430/clathrin-independent-endocytosis-an-increasing-degree-of-complexity
#1
REVIEW
Kirsten Sandvig, Simona Kavaliauskiene, Tore Skotland
This article aims at providing an update on the complexity of clathrin-independent endocytosis. It is now almost 30 years since we first wrote a review about its existence; at that time many people believed that with the exception of macropinocytosis, which will only be briefly mentioned in this review, all uptake could be accounted for by clathrin-dependent endocytosis. Now it is generally accepted that there are different clathrin-independent mechanisms, some of them regulated by ligands and membrane lipid composition...
May 17, 2018: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/29774066/caveolae-mediated-mesenchymal-stem-cell-labelling-by-pss-coated-plga-pfob-nano-contrast-agent-for-mri
#2
Hieu Vu Quang, Chi-Chih Chang, Ping Song, Ellen-Margrethe Hauge, Jørgen Kjems
Rationale: Non-invasive tracking of transplanted cells is critical in evaluating delivery, migration and prognosis of cell therapies. Methods: We formulated a nano-contrast agent consisting of a perfluorooctylbromide (PFOB) core within a shell of poly (lactic-co-glycolic acid) (PLGA) followed by a coat of polystyrene sulfonate (PSS) for 19 F MRI. The nano-contrast agent (PSS-NP) was characterised by DLS and the uptake efficiency of the nano-contrast agent (PSS-NP) was tested using flow cytometry, in vitro MRI and confocal microscopy...
2018: Theranostics
https://www.readbyqxmd.com/read/29769350/rab5-rab7-and-rab11-are-required-for-caveolae-dependent-endocytosis-of-classic-swine-fever-virus-in-porcine-alveolar-macrophages
#3
Yun-Na Zhang, Ya-Yun Liu, Fu-Chuan Xiao, Chun-Chun Liu, Xiao-Dong Liang, Jing Chen, Jing Zhou, Abdul Sattar Baloch, Lin Kan, Bin Zhou, Hua-Ji Qiu
The members of Flaviviridae utilize several endocytic pathways to enter a variety of host cells. Our previous work showed that classical swine fever virus (CSFV) enters porcine kidney (PK-15) cells through a clathrin-dependent pathway that requires Rab5 and Rab7. The entry mechanism for CSFV into other cell lines remains unclear, for instance, porcine alveolar macrophages (3D4/21 cells). More importantly, the trafficking of CSFV within endosomes controlled by Rab GTPases is unknown in 3D4/21 cells. In this study, entry and post-internalization of CSFV were analyzed using chemical inhibitors, RNA interference, and dominant negative (DN) mutants...
May 16, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29761970/-caveolin-1-in-relation-with-mitochondria-and-cancer-metabolism-a-promising-target-for-cancer-therapy
#4
REVIEW
Ying Jiang, Shun Li, Hong Yang, Chunhui Wu, Yiyao Liu
To aggressively proliferate and metastasize, cancer cells are in extreme need of energy supply and nutrients. Therefore, a promising cancer therapy strategy is developed to target its hallmark feature of metabolism. Recent findings revealed the regulatory role of caveolin-1 (Cav-1), a structural protein of caveolae, in cancer metabolism. And low Cav-1 expression in tumor stroma was proved to be a central player of cancer malignant phenotype. Here, we summarized the progressions of studies on Cav-1, mitochondria and cancer metabolism to indicate that the altered metabolism induced by Cav-1 and mitochondria association is a major cause of cancer malignant phenotype...
October 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29760588/in-vitro-gentamicin-exposure-alters-caveolae-protein-profile-in-cochlear-spiral-ligament-pericytes
#5
Elisa Ghelfi, Yohann Grondin, Emil J Millet, Adam Bartos, Magda Bortoni, Clara Oliveira Gomes Dos Santos, Humberto J Trevino-Villarreal, Rosalinda Sepulveda, Rick Rogers
Background: The aminoglycoside antibiotic gentamicin is an ototoxic drug and has been used experimentally to investigate cochlear damage induced by noise.We have investigated the changes in the protein profile associated with caveolae in gentamicin treated and untreated spiral ligament (SL) pericytes, specialized cells in the blood labyrinth barrier of the inner ear microvasculature. Pericytes from various microvascular beds express caveolae, protein and cholesterol rich microdomains, which can undergo endocytosis and transcytosis to transport small molecules in and out the cells...
2018: Proteome Science
https://www.readbyqxmd.com/read/29760450/caveolin-3-differentially-orchestrates-cholinergic-and-serotonergic-constriction-of-murine-airways
#6
M Keshavarz, M Skill, M I Hollenhorst, S Maxeiner, M Walecki, U Pfeil, W Kummer, G Krasteva-Christ
The mechanisms of controlling airway smooth muscle (ASM) tone are of utmost clinical importance as inappropriate constriction is a hallmark in asthma and chronic obstructive pulmonary disease. Receptors for acetylcholine and serotonin, two relevant mediators in this context, appear to be incorporated in specialized, cholesterol-rich domains of the plasma membrane, termed caveolae due to their invaginated shape. The structural protein caveolin-1 partly accounts for anchoring of these receptors. We here determined the role of the other major caveolar protein, caveolin-3 (cav-3), in orchestrating cholinergic and serotonergic ASM responses, utilizing newly generated cav-3 deficient mice...
May 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29751779/essential-role-of-atp6ap2-enrichment-in-caveolae-lipid-raft-microdomains-for-the-induction-of-neuronal-differentiation-of-stem-cells
#7
Nehman Makdissy, Katia Haddad, Jeanne D'arc AlBacha, Diana Chaker, Bassel Ismail, Albert Azar, Ghada Oreibi, David Ayoub, Ibrahim Achkar, Didier Quilliot, Ziad Fajloun
BACKGROUND: The subcellular distribution of prorenin receptor and adaptor protein ATP6AP2 may affect neurogenesis. In this study, we hypothesized that ATP6AP2 expression and subcellular relocalization from caveolae/lipid raft microdomains (CLR-Ms) to intracellular sites may correlate with neuronal differentiation (Neu-Dif) of adipose-derived mesenchymal stem cells (ADSCs). METHODS: Human ADSCs isolated from 24 healthy donors and 24 patients with neurological disorders (ND) were cultured and induced for Neu-Dif...
May 11, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29751502/the-development-of-compartmentation-of-camp-signaling-in-cardiomyocytes-the-role-of-t-tubules-and-caveolae-microdomains
#8
REVIEW
Navneet K Bhogal, Alveera Hasan, Julia Gorelik
3′-5′-cyclic adenosine monophosphate (cAMP) is a signaling messenger produced in response to the stimulation of cellular receptors, and has a myriad of functional applications depending on the cell type. In the heart, cAMP is responsible for regulating the contraction rate and force; however, cAMP is also involved in multiple other functions. Compartmentation of cAMP production may explain the specificity of signaling following a stimulus. In particular, transverse tubules (T-tubules) and caveolae have been found to be critical structural components for the spatial confinement of cAMP in cardiomyocytes, as exemplified by beta-adrenergic receptor (β-ARs) signaling...
May 3, 2018: Journal of Cardiovascular Development and Disease
https://www.readbyqxmd.com/read/29734145/the-role-of-caveolae-on-albumin-passage-through-glomerular-endothelial-and-epithelial-cells-the-new-etiology-of-urinary-albumin-excretion
#9
Takahito Moriyama, Kazunori Karasawa, Kosaku Nitta
BACKGROUND: In the traditional theory of albuminuria, small amounts of albumin pass through the fenestrae in glomerular endothelial cells, then through the slit membrane in the gaps between foot processes of glomerular epithelial cells. In the novel theory, large amounts of albumin pass through glomerular capillaries and are taken up by megalin and cubilin receptors on tubular epithelial cells. These etiologies of urinary albumin excretion are still controversial, and the details of albumin passage through the three layers of glomerular capillaries (glomerular endothelial cells, basement membrane, and epithelial cells) have never been entirely elucidated...
2018: Contributions to Nephrology
https://www.readbyqxmd.com/read/29733383/pde4-and-makap%C3%AE-are-nodal-organizers-of-%C3%AE-2-ars-nuclear-pka-signaling-in-cardiac-myocytes
#10
Ibrahim Bedioune, Florence Lefebvre, Patrick Lechêne, Audrey Varin, Valérie Domergue, Michael S Kapiloff, Rodolphe Fischmeister, Grégoire Vandecasteele
Aims: β1- and β2-adrenergic receptors (β-ARs) produce different acute contractile effects on the heart partly because they impact on different cytosolic pools of cAMP-dependent protein kinase (PKA). They also exert different effects on gene expression but the underlying mechanisms remain unknown. The aim of this study was to understand the mechanisms by which β1- and β2-ARs regulate nuclear PKA activity in cardiomyocytes. Methods and Results: We used cytoplasmic and nuclear targeted biosensors to examine cAMP signals and PKA activity in adult rat ventricular myocytes upon selective β1- or β2-ARs stimulation...
May 3, 2018: Cardiovascular Research
https://www.readbyqxmd.com/read/29727452/antigen-b-from-echinococcus-granulosus-enters-mammalian-cells-by-endocytic-pathways
#11
Edileuza Danieli da Silva, Martin Cancela, Karina Mariante Monteiro, Henrique Bunselmeyer Ferreira, Arnaldo Zaha
BACKGROUND: Cystic hydatid disease is a zoonosis caused by the larval stage (hydatid) of Echinococcus granulosus (Cestoda, Taeniidae). The hydatid develops in the viscera of intermediate host as a unilocular structure filled by the hydatid fluid, which contains parasitic excretory/secretory products. The lipoprotein Antigen B (AgB) is the major component of E. granulosus metacestode hydatid fluid. Functionally, AgB has been implicated in immunomodulation and lipid transport. However, the mechanisms underlying AgB functions are not completely known...
May 4, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29716956/cell-free-formation-and-interactome-analysis-of-caveolae
#12
WooRam Jung, Emma Sierecki, Michele Bastiani, Ailis O'Carroll, Kirill Alexandrov, James Rae, Wayne Johnston, Dominic J B Hunter, Charles Ferguson, Yann Gambin, Nicholas Ariotti, Robert G Parton
Caveolae have been linked to the regulation of signaling pathways in eukaryotic cells through direct interactions with caveolins. Here, we describe a cell-free system based on Leishmania tarentolae ( Lt ) extracts for the biogenesis of caveolae and show its use for single-molecule interaction studies. Insertion of expressed caveolin-1 (CAV1) into Lt membranes was analogous to that of caveolin in native membranes. Electron tomography showed that caveolins generate domains of precise size and curvature. Cell-free caveolae were used in quantitative assays to test the interaction of membrane-inserted caveolin with signaling proteins and to determine the stoichiometry of interactions...
May 1, 2018: Journal of Cell Biology
https://www.readbyqxmd.com/read/29705565/role-of-endocytotic-uptake-routes-in-impacting-the-ros-related-toxicity-of-silver-nanoparticles-to-mytilus-galloprovincialis-a-redox-proteomic-investigation
#13
Younes Bouallegui, Ridha Ben Younes, Ridha Oueslati, David Sheehan
Oxidative stress is often implicated in nanoparticle toxicity. Several studies have highlighted the role of internalization routes in determining nanotoxicity. Here, we investigate how two endocytotic mechanisms (clathrin- and caveolae-mediated) impact on redox balance in gill and digestive gland of the mussel, Mytilus galloprovincialis. Animals were exposed (for 3, 6 and 12 h) to two sizes of silver nanoparticles (AgNP: <50 nm and <100 nm) prior to and after blockade of two endocytic pathways (amantadine blocks clathrin-mediated endocytosis while nystatin blocks caveolae-mediated endocytosis)...
April 23, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29702566/preferential-and-increased-uptake-of-hydroxyl-terminated-pamam-dendrimers-by-activated-microglia-in-rabbit-brain-mixed-glial-culture
#14
Yossef Alnasser, Siva P Kambhampati, Elizabeth Nance, Labchan Rajbhandari, Shiva Shrestha, Arun Venkatesan, Rangaramanujam M Kannan, Sujatha Kannan
Polyamidoamine (PAMAM) dendrimers are multifunctional nanoparticles with tunable physicochemical features, making them promising candidates for targeted drug delivery in the central nervous system (CNS). Systemically administered dendrimers have been shown to localize in activated glial cells, which mediate neuroinflammation in the CNS. These dendrimers delivered drugs specifically to activated microglia, producing significant neurological improvements in multiple brain injury models, including in a neonatal rabbit model of cerebral palsy...
April 27, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29695496/oxldl-mediated-cellular-senescence-is-associated-with-increased-nadph-oxidase-p47phox-recruitment-to-caveolae
#15
Jing Wang, Yuzhi Bai, Xia Zhao, Jing Ru, Ning Kang, Tian Tian, Liying Tang, Yun An, Pei Li
Atherosclerosis develops as a consequence of inflammation and cell senescence.  In critical factors involved in the atherosclerotic changes, reactive oxygen species (ROS) generation is considered a leading cause.  While NADPH oxidases, particularly NOX2, are the main source of ROS, how they are regulated in the disease is incompletely understood.  In addition, how caveolae, the membrane structure implicated in oxLDL deposition under vascular endothelia, is involved in the oxLDL mediated ROS production remains mostly elusive...
April 25, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29690640/non-canonical-activation-of-the-epidermal-growth-factor-receptor-by-carbon-nanoparticles
#16
Daniel Stöckmann, Tim Spannbrucker, Niloofar Ale-Agha, Philipp Jakobs, Christine Goy, Nadine Dyballa-Rukes, Tamara Hornstein, Alexander Kümper, Annette Kraegeloh, Judith Haendeler, Klaus Unfried
The epidermal growth factor receptor (EGFR) is an abundant membrane protein, which is essential for regulating many cellular processes including cell proliferation. In our earlier studies, we observed an activation of the EGFR and subsequent signaling events after the exposure of epithelial cells to carbon nanoparticles. In the current study, we describe molecular mechanisms that allow for discriminating carbon nanoparticle-specific from ligand-dependent receptor activation. Caveolin-1 is a key player that co-localizes with the EGFR upon receptor activation by carbon nanoparticles...
April 23, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29689223/caveolae
#17
Robert G Parton, Vikas A Tillu, Brett M Collins
Caveolae are one of the most abundant and striking features of the plasma membrane of many mammalian cell types. These surface pits have fascinated biologists since their discovery by the pioneers of electron microscopy in the middle of the last century, but we are only just starting to understand their multiple functions. Molecular understanding of caveolar formation is advancing rapidly and we now know that sculpting the membrane to generate the characteristic bulb-shaped caveolar pit involves the coordinated action of integral membrane proteins and peripheral membrane coat proteins in a process dependent on their multiple interactions with membrane lipids...
April 23, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29679667/systemic-delivery-of-bace1-sirna-through-neuron-targeted-nanocomplexes-for-treatment-of-alzheimer-s-disease
#18
Pengzhen Wang, Xiaoyao Zheng, Qian Guo, Peng Yang, Xiaoying Pang, Kang Qian, Wei Lu, Qizhi Zhang, Xinguo Jiang
β-site amyloid precursor protein cleaving enzyme 1 (BACE1) is a key enzyme to cleave the amyloid precursor protein to develop Alzheimer's disease (AD). Reducing BACE1 expression in central neuron through RNA interference technology shows great promise to overcome AD. However, to obtain an efficient and neurons-specific delivery of siRNA against BACE1 through systemic administration remains challenging. Here, we design and prepare siRNA nano-carriers based on PEGylated poly(2-(N,N-dimethylamino) ethyl methacrylate) (PEG-PDMAEMA) modified with both the CGN peptide for blood-brain barrier (BBB) penetration and the Tet1 peptide for neuron-specific binding...
April 18, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29678956/local-actin-polymerization-during-endocytic-carrier-formation
#19
REVIEW
Claudia Hinze, Emmanuel Boucrot
Extracellular macromolecules, pathogens and cell surface proteins rely on endocytosis to enter cells. Key steps of endocytic carrier formation are cargo molecule selection, plasma membrane folding and detachment from the cell surface. While dedicated proteins mediate each step, the actin cytoskeleton contributes to all. However, its role can be indirect to the actual molecular events driving endocytosis. Here, we review our understanding of the molecular steps mediating local actin polymerization during the formation of endocytic carriers...
April 20, 2018: Biochemical Society Transactions
https://www.readbyqxmd.com/read/29678520/sorafenib-suppresses-tgf-%C3%AE-responses-by-inducing-caveolae-lipid-raft-mediated-internalization-degradation-of-cell-surface-type-ii-tgf-%C3%AE-receptors-implications-in-development-of-effective-adjunctive-therapy-for-hepatocellular-carcinoma
#20
Chih-Ling Chung, Shih-Wei Wang, Wei-Chih Sun, Chih-Wen Shu, Yu-Chen Kao, Meng-Shin Shiao, Chun-Lin Chen
Sorafenib is the only FDA approved drug for the treatment of advanced hepatocellular carcinoma (HCC) and other malignancies. Studies indicate that TGF-β signalling is associated with tumour progression in HCC. Autocrine and paracrine TGF-β promotes tumour growth and malignancy by inducing epithelial-mesenchymal transition (EMT). Sorafenib is believed to antagonize tumour progression by inhibiting TGF-β-induced EMT. It improves survival of patients but HCC later develops resistance and relapses. The underlying mechanism of resistance is unknown...
April 17, 2018: Biochemical Pharmacology
keyword
keyword
85359
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"