The data provided in the citations: Kato, Y., et al. (2009). Biochem Biophys Res Commun. 390(3):547-51 and Kaneko, M. K., et al. (2011). Biochem Biophys Res Commun. 406(4):608-613 show tissue staining in paraffin-embedded sections only.
At this time, there's no evidence of the successful application of this antibody with frozen sections.