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  • Paulsson, Johan FDepartment of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA (författare)

Real-Time Monitoring of Apoptosis by Caspase-3-Like Protease Induced FRET Reduction Triggered by Amyloid Aggregation

  • Artikel/kapitelEngelska2008

Förlag, utgivningsår, omfång ...

  • Hindawi Limited,2008
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:liu-19669
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-19669URI
  • https://doi.org/10.1155/2008/865850DOI
  • http://kipublications.ki.se/Default.aspx?queryparsed=id:118964364URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

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

Anmärkningar

  • Original Publication: Johan F Paulsson, Sebastian Schultz, Martin Kohler, Ingo Leibiger, Per-Olof Berggren and Gunilla Westermark, Real-Time Monitoring of Apoptosis by Caspase-3-Like Protease Induced FRET Reduction Triggered by Amyloid Aggregation, 2008, EXPERIMENTAL DIABETES RESEARCH, (2008), 865850. http://dx.doi.org/10.1155/2008/865850 Copyright: Authors
  • Amyloid formation is cytotoxic and can activate the caspase cascade. Here, we monitor caspase-3-like activity as reduction of fluorescence resonance energy transfer (FRET) using the contstruct pFRET2-DEVD containing enhanced cyan fluorescent protin (EYFP) linked by the caspase-3 specific cleavage site residues DEVD. Beta-TC-6 cells were transfected, and the fluoorescence was measured at 440 nm excitation and 535 nm (EYFP) and 480 nm (ECFP) emission wavelength. Cells were incubated with recombinant pro lset Amyloid Polypeptide (rec prolAPP) or the processing metabolites of prolAPP; the N-terminal flanking peptide withIAPP (recN+IAPP); IAPP with the C-terminal flanking peptied (recIAPP+C) and lslet Amyloid Polypeptide (recIAPP). Peptides were added in solubilized from (50 mu M) or as performed amyloid-like fibrils, or as a combination of these. FRET was measured and incubation with a mixture of solubilized peptide and performed fibrils resulted in loss of FRET and apoptosis was determined to occurein cells incubated with recproIAPP (49%), recN+IAPP (46%), recIAPP (72%) and recIAPP+C (59%). These results show that proIAPP and the processing intermediates reside the same cell toxic capacity as IAPP, and they can all have a central role in the reduction of beta-cell number in type 2 diabetes.

Ämnesord och genrebeteckningar

  • MEDICINE
  • MEDICIN

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

  • Schultz, SebastianLinköpings universitet,Cellbiologi,Hälsouniversitetet(Swepub:liu)sebsc19 (författare)
  • Kohler, MartinKarolinska Institutet (författare)
  • Leibiger, IngoKarolinska Institutet (författare)
  • Berggren, Per-OlofKarolinska Institutet (författare)
  • Westermark, GunillaLinköpings universitet,Cellbiologi,Hälsouniversitetet(Swepub:liu)gunwe13 (författare)
  • Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USACellbiologi (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Experimental Diabetes Research: Hindawi Limited2008:8658501687-52141687-5303

Internetlänk

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