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Virchows Archiv

, Volume 463, Issue 4, pp 609–609 | Cite as

Comment on Nietner et al. [Virchows Arch (s2012) 461:259–269]

  • Torsten GoldmannEmail author
  • Ekkehard Vollmer
Letter to the Editor
  • 688 Downloads

Keywords

Public Health Acetone Dehydration Xylene Molecular Approach 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Dear Sirs,

We have read the study of Nietner et al. [Virchows Arch (2012) 461:259–269] with interest. In general, such studies are necessary and new fixatives are needed within the growing demand for immunohistochemical and molecular approaches. The results obtained here with the HOPE technique are not surprising, since the procedure was not done according to the manufacturer's prescriptions (http://www.dcs-diagnostics.de/data/HOPE_Manual_070801.pdf). The authors did the deparaffinization with a ‘usual dehydration process’, which means an ascending series of ethanol and xylene or another intermedium. This dehydration is not compatible with the HOPE technique since first of all ethanol itself is a fixative, which influences antigenic properties, and, secondly, the HOPE I solution needs to be washed out by acetone in order to achieve a good preservation of the morphology. This explains the poor morphology and the need for pretreatment in immunohistochemistry. The right way to dehydrate HOPE-fixed materials (by acetone) is long known [1], which is why we cannot agree with the procedure used and the results obtained here.

With our best regards

Reference

  1. 1.
    Olert J, Wiedorn KH, Goldmann T, Kühl H, Mehraein Y, Scherthan H, Niketeghad F, Vollmer E, Müller MA, Müller-Navia J (2001) HOPE fixation: a novel fixing method and paraffin-embedding technique for human soft tissues. Pathol Res Pract 197:823–826PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Research Center Borstel, Clinical and Experimental PathologyAirway Research Center North (ARCN), Member of the German Center for Lung Research (DZL)BorstelGermany

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