The answers given seem to be rather complicated. We just embedd 
the cell lines in 1% agarose and put it in the tissue processor - that's 
it. For details, see our paper: 
> Mengel M, Hebel K, Kreipe H, von Wasielewski R:
Standardized on-slide control for quality assurance in the 
immunohistochemical assessment of therapeutic target
molecules in breast cancer.
Breast J 2005; 11(1): 34-40

It is really simple.
With best regards
Reinhard von Wasielewski



PD Dr. med. Reinhard von Wasielewski


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