Search results for "ECHO-virukset"
showing 10 items of 10 documents
Early entry events in Echovirus 30 infection
2020
Echovirus 30 (E30), a member of the enterovirus B species, is a major cause of viral meningitis, targeting children and adults alike. While it is a frequently isolated enterovirus and the cause of several outbreaks all over the world, surprisingly little is known regarding its entry and replication strategy within cells. In this study, we used E30 strain Bastianni (E30B) generated from an infectious cDNA clone in order to study early entry events during infection in human RD cells. E30B required the newly discovered Fc echovirus receptor (FcRn) for successful infection, but not the coxsackievirus and adenovirus receptor (CAR) or decay-accelerating factor (DAF), although an interaction with …
Cellular factors promoting efficient baculovirus internalization and gene delivery into human cells
2013
Enterovirus-induced non-acidic entry pathway and its relation to the epidermal growth factor receptor pathway
2014
Interactions of α2β1 integrin and its ligands, type I collagen and echovirus 1
2015
The effect of PLC-inhibitor on echovirus 1 internalization probed with fluorescently labeled echovirus 1
2014
Echovirus 1 (EV1) kuuluu Pikornavirusperheeseen ja tarkemmin luokiteltuna Enterovirusten sukuun. EV1 on pieni ja vaipaton RNA-virus, jonka proteiinikuori koostuu neljästä proteiinista VP1-VP4. Infektion on osoitettu alkavan, kun EV1 tarttuu α2β1-integriiniin solun pinnalla, jonka jälkeen virus otetaan solun sisään kaveoliinivälitteistä endosytoosia sekä makropinosytoosia muistuttavalla mekanismilla. Toisaalta sitä, kuinka virus avautuu sekä vapauttaa RNA:nsa, ei vielä tarkalleen tiedetä. Tässä tutkimuksessa EV1 puhdistettiin ensin sakkaroosigradientilla, jonka jälkeen virus leimattiin fluoresoivalla amiinireaktiivisella värillä. Tulokset osoittivat, että leimauksen onnistumiseksi tarvitaan …
A Common Receptor Found for Echoviruses.
2019
Echoviruses are amongst the most common causative agents of aseptic meningitis worldwide and are particularly devastating in the neonatal population, where they are associated with severe hepatitis, neurological disease, including meningitis and encephalitis, and even death. Here, we identify the neonatal Fc receptor (FcRn) as a pan-echovirus receptor. We show that loss of expression of FcRn or its binding partner beta 2 microglobulin (β2M) renders cells resistant to infection by a panel of echoviruses at the stage of virus attachment, and that a blocking antibody to β2M inhibits echovirus infection in cell lines and in primary human intestinal epithelial cells. We also show that expression…
Echovirus 1:n endosytoosin karakterisointi
2009
Molecular dynamics simulations of Echovirus1
2014
Covalently attaching thiol-functionalized gold nanoclusters to virus surfaces could provide new visualization method for tracking viruses with TEM [1]. This type of imaging could provide better resolution images and shed light, e.g., on virus infection pathways [1]. The controllable binding of these nanoclusters would be essential, and this requires atomic scale information on potential binding sites. In addition atomic scale structural information on virus-nanocluster complexes and their dynamics are needed. Both types of information are potentially obtainable from an all-atom simulation. The aim of this work was to construct a valid model system and set up simulation for full Echovirus 1 …
Echovirus 1 infektion vaikutus epidermaalisen kasvutekijäreseptorin endosytoosiin ja signalointiin
2013
Epidermaalinen kasvutekijäreseptori (EGFR) on yhdessä kollageeni- ja lamiinireseptori α2β1-integriinin kanssa tärkeä tekijä solun selviytymisen, kiinnittymisen ja jakautumisen säätelemisessä sekä syöpäsoluissa. Kasvutekijän sitoutumisen jälkeen EGFR:t dimerisoituvat, endosytoituvat klatriinivälitteisen endosytoosin kautta ja kulkeutuvat solun sisällä kolmen eri reitin mukaisesti: 1) EGFR-ligandi-kompleksi voi ubikitinaation seurauksena päätyä lysosomaaliseen pH:sta riippuvaan hajoitukseen, EGFR kierrättyy takaisin solukalvolle 2) ligandin irtoamisen tai 3) UBPY de-ubikitinaatioenstyymin toimesta. α2β1-integriinireseptori klusteroituu solukalvolle kiinnityttyään kollageeniin, lamiiniin, Echo…