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Glyoxal as an alternative fixative to formaldehyde in immunostaining and super-resolution microscopy
Vise andre og tillknytning
2018 (engelsk)Inngår i: EMBO Journal, ISSN 0261-4189, E-ISSN 1460-2075, Vol. 37, nr 1, s. 139-159Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Paraformaldehyde (PFA) is the most commonly used fixative for immunostaining of cells, but has been associated with various problems, ranging from loss of antigenicity to changes in morphology during fixation. We show here that the small dialdehyde glyoxal can successfully replace PFA. Despite being less toxic than PFA, and, as most aldehydes, likely usable as a fixative, glyoxal has not yet been systematically tried in modern fluorescence microscopy. Here, we tested and optimized glyoxal fixation and surprisingly found it to be more efficient than PFA-based protocols. Glyoxal acted faster than PFA, cross-linked proteins more effectively, and improved the preservation of cellular morphology. We validated glyoxal fixation in multiple laboratories against different PFA-based protocols and confirmed that it enabled better immunostainings for a majority of the targets. Our data therefore support that glyoxal can be a valuable alternative to PFA for immunostaining.

sted, utgiver, år, opplag, sider
WILEY , 2018. Vol. 37, nr 1, s. 139-159
Emneord [en]
fixation, glyoxal, immunocytochemistry, PFA, super-resolution Microscopy
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-221945DOI: 10.15252/embj.201695709ISI: 000419328600010PubMedID: 29146773Scopus ID: 2-s2.0-85034102627OAI: oai:DiVA.org:kth-221945DiVA, id: diva2:1178660
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QC 20180130

Tilgjengelig fra: 2018-01-30 Laget: 2018-01-30 Sist oppdatert: 2018-01-30bibliografisk kontrollert

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Coceano, GiovannaTesta, Ilaria

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Coceano, GiovannaDuncan, Rory R.Testa, Ilaria
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