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Related Experiment Videos

CITED1 protein expression suggests Papillary Thyroid Carcinoma in high throughput tissue microarray-based study.

Manju L Prasad1, Natalia S Pellegata, Richard T Kloos

  • 1Department of Pathology, Ohio State University, Columbus, Ohio 43210, USA. Prasad-l@medctr.osu.edu

Thyroid : Official Journal of the American Thyroid Association
|April 10, 2004
PubMed
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The CITED1 protein is highly expressed in papillary thyroid carcinoma (PTC) but not in normal thyroid tissue or anaplastic thyroid carcinoma. This makes CITED1 a potential diagnostic marker for PTC.

Area of Science:

  • Oncology
  • Molecular Pathology
  • Biomarker Discovery

Background:

  • Molecular markers for papillary thyroid carcinoma (PTC) are not well-established.
  • The CITED1 gene shows significant upregulation in PTC compared to normal thyroid tissue.
  • CITED1 protein, a nuclear transactivator, is known to be expressed in PTC and certain other cell types.

Purpose of the Study:

  • To investigate the expression pattern of CITED1 protein in various thyroid masses and non-thyroid tumors.
  • To determine the diagnostic utility of CITED1 as a potential biomarker for papillary thyroid carcinoma.

Main Methods:

  • Immunohistochemistry was employed to evaluate CITED1 protein expression.
  • Tissue microarrays containing diverse thyroid and non-thyroid tissues were utilized.

Related Experiment Videos

  • A polyclonal anti-CITED1 antibody was used for detection.

    • Main Results:

    • CITED1 expression was detected in 93% of PTC cases.
    • No CITED1 expression was observed in normal thyroid tissues, thyrotoxic hyperplasias, or anaplastic thyroid carcinomas.
    • CITED1 demonstrated high accuracy in differentiating PTC from benign thyroid nodules (93%), other thyroid carcinomas (89%), and non-thyroid carcinomas (94%).

    Conclusions:

    • CITED1 protein is preferentially expressed in papillary thyroid carcinoma.
    • CITED1 serves as a valuable diagnostic marker for identifying PTC.
    • Further research can explore CITED1's role in other oncological contexts.