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. 1984 Feb;49(2):123–128. doi: 10.1038/bjc.1984.23

Tumour and cellular localization by use of monoclonal and polyclonal antibodies to placental alkaline phosphatase.

A Jeppsson, B Wahren, J L Millán, T Stigbrand
PMCID: PMC1976696  PMID: 6365130

Abstract

Monoclonal and polyclonal antibodies against placental alkaline phosphatase (PLAP) were evaluated for tumour immunolocalization of human PLAP-producing Hep 2 tumours in nude mice. The antibodies were labelled with 125I and injected i.p. in mice with developing Hep 2 tumours. The distribution of 125I-anti PLAP in various tissues showed that the labelled antibody was enriched in the tumour, the mean concentration ratio being 7.1 and 6.8 for polyclonal and monoclonal antibodies, respectively. A PLAP negative tumour (RD) showed a mean ratio of 1.2. There was a positive correlation between PLAP content and uptake of labelled antibody in the tumours. Hep 2 tumour cells in tissue culture showed 100% positivity for PLAP, while imprints of the tumour after passage in nude mice showed 40-50% positivity. PLAP offers potential as a useful marker for localizing tumours in humans.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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