Sökning: id:"swepub:oai:DiVA.org:su-20495" >
Gliotoxin induces c...
Gliotoxin induces caspase-dependent neurite degeneration and calpain-mediated general cytotoxicity in differentiated human neuroblastoma SH-SY5Y cells.
-
- Axelsson, Viktoria (författare)
- Stockholms universitet,Institutionen för neurokemi,Anna Forsby
-
- Holback, Sofia (författare)
- Stockholms universitet,Institutionen för neurokemi,Anna Forsby
-
- Sjögren, Maria (författare)
- Stockholms universitet,Institutionen för neurokemi,A nna Forsby
-
visa fler...
-
- Gustafsson, Helena (författare)
- Stockholms universitet,Institutionen för neurokemi
-
- Forsby, Anna (författare)
- Stockholms universitet,Institutionen för neurokemi,Anna Forsby
-
visa färre...
-
(creator_code:org_t)
- 2006
- 2006
- Engelska.
-
Ingår i: Biochem Biophys Res Commun. - 0006-291X. ; 345:3, s. 1068-74
- Relaterad länk:
-
http://www.ncbi.nlm....
-
visa fler...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- In this study, a significant increase by 50% in intracellular free calcium concentration ([Ca(2+)](i)) was observed in differentiated human neuroblastoma (SH-SY5Y) cells after exposure to 0.25microM of the fungal metabolite gliotoxin for 72h. Further, the involvement of caspases and calpains was demonstrated to underlie the gliotoxin-induced cytotoxic and neurite degenerative effects. The caspase inhibitor Z-VAD-fmk almost completely reduced the neurite degeneration from 40% degeneration of neurites to 5% as compared to control. Inhibition of calpains with calpeptin significantly attenuated gliotoxin-induced cytotoxicity, determined as reduction in total cellular protein content, from 43% to 14% as compared to control cells. Western blot analyses of alphaII-spectrin breakdown fragments confirmed activity of the proteases, and that alphaII-spectrin was cleaved by caspases in gliotoxin-exposed cells. These results show that calpains and caspases have a role in the toxicity of gliotoxin in differentiated SH-SY5Y cells and that the process may be Ca(2+)-mediated.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Farmakologi och toxikologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Pharmacology and Toxicology (hsv//eng)
Nyckelord
- Calcium/metabolism
- Calpain/*metabolism
- Caspases/*metabolism
- Cell Differentiation
- Cell Line;/pharmacology
- Gliotoxin/*pharmacology
- Humans
- Immunosuppressive Agents/*pharmacology
- Neurites/*metabolism
- Neuroblastoma/*metabolism
- Spectrin/metabolism
- Toxicology
- Toxikologi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas