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Sökning: onr:"swepub:oai:DiVA.org:uu-400680" > Transient Photoinac...

  • Kang, PeiyuanUniv Texas Dallas, Dept Mech Engn, 800 West Campbell Rd, Richardson, TX 75080 USA (författare)

Transient Photoinactivation of Cell Membrane Protein Activity without Genetic Modification by Molecular Hyperthermia

  • Artikel/kapitelEngelska2019

Förlag, utgivningsår, omfång ...

  • 2019-10-15
  • AMER CHEMICAL SOC,2019
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:uu-400680
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-400680URI
  • https://doi.org/10.1021/acsnano.9b01993DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Precise manipulation of protein activity in living systems has broad applications in biomedical sciences. However, it is challenging to use light to manipulate protein activity in living systems without genetic modification. Here, we report a technique to optically switch off protein activity in living cells with high spatiotemporal resolution, referred to as molecular hyperthermia (MH). MH is based on the nanoscale-confined heating of plasmonic gold nanoparticles by short laser pulses to unfold and photoinactivate targeted proteins of interest. First, we show that protease-activated receptor 2 (PAR2), a G-protein-coupled receptor and an important pathway that leads to pain sensitization, can be photoinactivated in situ by MH without compromising cell proliferation. PAR2 activity can be switched off in laser-targeted cells without affecting surrounding cells. Furthermore, we demonstrate the molecular specificity of MH by inactivating PAR2 while leaving other receptors intact. Second, we demonstrate that the photoinactivation of a tight junction protein in brain endothelial monolayers leads to a reversible blood-brain barrier opening in vitro. Lastly, the protein inactivation by MH is below the nanobubble generation threshold and thus is predominantly due to the nanoscale heating. MH is distinct from traditional hyperthermia (that induces global tissue heating) in both its time and length scales: nanoseconds versus seconds, nanometers versus millimeters. Our results demonstrate that MH enables selective and remote manipulation of protein activity and cellular behavior without genetic modification.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Li, XiaoqingUniv Texas Dallas, Dept Bioengn, 800 West Campbell Rd, Richardson, TX 75080 USA (författare)
  • Liu, YaningUniv Texas Dallas, Dept Mech Engn, 800 West Campbell Rd, Richardson, TX 75080 USA (författare)
  • Shiers, Stephanie I.Univ Texas Dallas, Sch Behav & Brain Sci, 800 West Campbell Rd, Richardson, TX 75080 USA (författare)
  • Xiong, HejianUniv Texas Dallas, Dept Mech Engn, 800 West Campbell Rd, Richardson, TX 75080 USA (författare)
  • Giannotta, MonicaFIRC Inst Mol Oncol IFOM, Vasc Biol Lab, I-20139 Milan, Italy (författare)
  • Dejana, ElisabettaUppsala universitet,Vaskulärbiologi,FIRC Inst Mol Oncol IFOM, Vasc Biol Lab, I-20139 Milan, Italy(Swepub:uu)elide443 (författare)
  • Price, Theodore JohnUniv Texas Dallas, Sch Behav & Brain Sci, 800 West Campbell Rd, Richardson, TX 75080 USA (författare)
  • Randrianalisoa, JaonaUniv Reims, Inst Therm Mecan Mat ITheMM, EA 7548, F-51687 Reims 2, France (författare)
  • Nielsen, Steven O.Univ Texas Dallas, Dept Chem & Biochem, 800 West Campbell Rd, Richardson, TX 75080 USA (författare)
  • Qin, ZhenpengUniv Texas Dallas, Dept Mech Engn, 800 West Campbell Rd, Richardson, TX 75080 USA;Univ Texas Dallas, Dept Bioengn, 800 West Campbell Rd, Richardson, TX 75080 USA;Univ Texas Southwestern Med Ctr Dallas, Dept Surg, 5323 Harry Hines Blvd, Dallas, TX 75390 USA (författare)
  • Univ Texas Dallas, Dept Mech Engn, 800 West Campbell Rd, Richardson, TX 75080 USAUniv Texas Dallas, Dept Bioengn, 800 West Campbell Rd, Richardson, TX 75080 USA (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:ACS Nano: AMER CHEMICAL SOC13:11, s. 12487-124991936-08511936-086X

Internetlänk

Hitta via bibliotek

  • ACS Nano (Sök värdpublikationen i LIBRIS)

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