Discrimination of complete hydatidiform mole from its mimics by immunohistochemistry of the paternally imprinted gene product p57KIP2

D. H. Castrillon, D. Sun, S. Weremowicz, R. A. Fisher, C. P. Crum, D. R. Genest

Research output: Contribution to journalArticle

170 Citations (Scopus)

Abstract

The p57KIP2 protein is a cell cycle inhibitor and tumor suppressor encoded by a strongly paternally imprinted gene. We explored the utility of p57KIP2 as a diagnostic marker in hydatidiform mole, a disease likely the result of abnormal dosage and consequent misexpression of imprinted genes. Using a monoclonal antibody on paraffin-embedded, formalin-fixed tissue sections, the authors evaluated p57KIP2 expression in normal placenta and in 149 gestations including 59 complete hydatidiform moles, 39 PHMs, and 51 spontaneous losses with hydropic changes. p57KIP2 was strongly expressed in cytotrophoblast and villous mesenchyme in normal placenta, all cases of partial hydatidiform moles (39 of 39) and all spontaneous losses with hydropic changes (51 of 51). In contrast, p57KIP2 expression in cytotrophoblast and villous mesenchyme was absent or markedly decreased in 58 of 59 complete hydatidiform moles. In all gestations p57KIP2 was strongly expressed in decidua and in intervillous trophoblast islands, which served as internal positive controls for p57KIP2 immunostaining, p57KIP2 immunohistochemistry can reliably identify most cases of complete hydatidiform mole irrespective of gestational age and is thus a useful diagnostic adjunct, complementary to ploidy analysis, in the diagnosis of hydatidiform mole.

Original languageEnglish (US)
Pages (from-to)1225-1230
Number of pages6
JournalAmerican Journal of Surgical Pathology
Volume25
Issue number10
DOIs
StatePublished - 2001

Fingerprint

Hydatidiform Mole
Immunohistochemistry
Trophoblasts
Genes
Mesoderm
Placenta
Cyclin-Dependent Kinase Inhibitor p57
Edema
Decidua
Pregnancy
Ploidies
Paraffin
Formaldehyde
Gestational Age
Cell Cycle
Monoclonal Antibodies
Neoplasms

Keywords

  • Genomic imprinting
  • Hydatidiform mole
  • Immunohistochemistry
  • P57

ASJC Scopus subject areas

  • Anatomy
  • Pathology and Forensic Medicine

Cite this

Discrimination of complete hydatidiform mole from its mimics by immunohistochemistry of the paternally imprinted gene product p57KIP2 . / Castrillon, D. H.; Sun, D.; Weremowicz, S.; Fisher, R. A.; Crum, C. P.; Genest, D. R.

In: American Journal of Surgical Pathology, Vol. 25, No. 10, 2001, p. 1225-1230.

Research output: Contribution to journalArticle

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