Document Detail

Intercellular adhesion molecule-1 (ICAM-1) is upregulated in aggressive papillary thyroid carcinoma.
MedLine Citation:
PMID:  21879273     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Intercellular adhesion molecule-1 (ICAM-1) is implicated in carcinogenesis. In this study we examined the expression of ICAM-1 in papillary thyroid cancer (PTC). We hypothesized that ICAM-1 correlates with indicators of tumor aggressiveness in PTC.
METHODS: Thirty-five primary and metastatic PTCs, five follicular adenomas, five Hashimoto thyroiditis, five nodular hyperplasia, and eight normal thyroid tissue samples were analyzed for ICAM-1 gene expression using quantitative reverse-transcription polymerase chain reaction (RT-PCR). ICAM-1 gene expression was analyzed at protein level by immunohistochemistry (IHC) using a semiquantitative score. Gene expression and intensity levels were correlated with markers of tumor aggressiveness including BRAF V600E mutation, tumor size, extrathyroidal extension (ETE), angiolymphatic invasion, and lymph node metastasis.
RESULTS: ICAM-1 gene expression was higher in PTC (p = 0.01) and lymph node metastases (p = 0.03) when compared with benign tumors and Hashimoto's. Furthermore, PTCs exhibiting BRAF V600E mutation (p = 0.01), ETE (p < 0.01), and lymph node metastasis (p = 0.02) were associated with higher ICAM-1 levels. Gene expression correlated with protein levels on IHC. Additionally, poorly differentiated thyroid carcinoma had a higher ICAM-1 intensity score compared with well-differentiated carcinoma (p = 0.03).
CONCLUSIONS: ICAM-1 expression is upregulated in papillary thyroid carcinoma. Furthermore, ICAM-1 upregulation correlated with aggressive tumor features such as BRAF V600E mutation, ETE, and lymph node metastasis, suggesting that ICAM-1 plays a role in thyroid cancer progression.
D Buitrago; X M Keutgen; M Crowley; F Filicori; H Aldailami; R Hoda; Yi-Fang Liu; R S Hoda; T Scognamiglio; M Jin; T J Fahey; R Zarnegar
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Publication Detail:
Type:  Journal Article     Date:  2011-08-31
Journal Detail:
Title:  Annals of surgical oncology     Volume:  19     ISSN:  1534-4681     ISO Abbreviation:  Ann. Surg. Oncol.     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-02-21     Completed Date:  2012-06-12     Revised Date:  2012-06-21    
Medline Journal Info:
Nlm Unique ID:  9420840     Medline TA:  Ann Surg Oncol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  973-80     Citation Subset:  IM    
Division of Endocrine and Minimally Invasive Surgery, Department of Surgery, New York Presbyterian Hospital-Weill Cornell Medical College, New York, USA.
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MeSH Terms
Carcinoma, Papillary / genetics,  metabolism*,  pathology
Gene Expression Regulation, Neoplastic*
Hashimoto Disease / genetics,  metabolism
Intercellular Adhesion Molecule-1 / genetics,  metabolism*
Lymphatic Metastasis
Middle Aged
Protein Array Analysis
Proto-Oncogene Proteins B-raf / genetics
Real-Time Polymerase Chain Reaction
Reverse Transcriptase Polymerase Chain Reaction
Thyroid Neoplasms / genetics,  metabolism*,  pathology
Young Adult
Reg. No./Substance:
126547-89-5/Intercellular Adhesion Molecule-1; EC protein, human; EC Proteins B-raf

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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