Journals / Ege Tıp Dergisi / 2008 / Cilt: 47 - Sayı: 3

The importance and reliability of thyroid transcription factor-1 expression to differential diagnosis in primary and metastatic lung cancers

Primer ve metastatik akciğer tümörlerinin ayırıcı tanısında tiroid transkripsiyon faktör-1 ekspresyonunun önemi ve güvenilirliği

Pages
171–175
DOI
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Results and Discussion: Our study shows that TTF-1 has a great value in differential diagnosis of primary and metastatic lung carcinomas, and it's a sensitive (%70) and spesific (%100) immunohistochemical method in routine studies.

📌 3 Key Takeaways

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Objective & Hypothesis:Introduction: Thyroid transcription factor-1 (TTF-1) has an important role in the morphogenesis and early differantiation of the fetal tyhroid, brain and lung.
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Key Findings & Data:Tyhroid and lung carcinomas express TTF-1 in a high proportion.
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Conclusion & Impact:Results and Discussion: Our study shows that TTF-1 has a great value in differential diagnosis of primary and metastatic lung carcinomas, and it's a sensitive (%70) and spesific (%100) immunohistochemical method in routine studies.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Introduction: Thyroid transcription factor-1 (TTF-1) has an important role in the morphogenesis and early differantiation of the fetal tyhroid, brain and lung. Tyhroid and lung carcinomas express TTF-1 in a high proportion. TTF-1 immunostaining is commonly used in the diagnosis of lung adenocarcinomas. In this study , TTF-1 immunreactivity has been examined in different types of primary lung carcinomas and lung metastases from different sites. The reliability of TTF-1 has been studied in the diagnosis of primary and metastatic lung carcinomas. Materials and Methods: One hundred eleven primary lung carcinomas and 23 metastatic lung carcinomas have been included. TTF-1 was positive in 78 of 111 primary lung carcinomas (%70). This ratio was very high especially in small cell carcinomas(%100) and adenocarcinomas(%83). In the metastatic group, diffuse TTF-1 immunoreactivity was seen in thyroid cancer metastasis, as expected and TTF-1 expression was not seen in other metastatic carcinomas. Results and Discussion: Our study shows that TTF-1 has a great value in differential diagnosis of primary and metastatic lung carcinomas, and it's a sensitive (%70) and spesific (%100) immunohistochemical method in routine studies.

Özet

Giriş: Tiroid transkripsiyon faktör-1 (TTF-1), gelişmekte olan tiroid, akciğer ve beyinin erken diferansiyasyon ve morfogenezinde önemli rol oynar. TTF-1 ekspresyonu, akciğer ve tiroid kanserlerinde yüksek oranlarda görülmektedir. TTF-1'in immunohistokimyasal (İHK) uygulaması, akciğer kökenli adenokarsinomların identifikasyonunda oldukça yaygın olarak kullanılmaktadır. Bu çalışmada primer akciğer kanserlerinin farklı tiplerinde ve farklı organlardan akciğere metastaz yapmış kanserlerde TTF-1 immunoreaktivitesi incelenerek TTF-1'in primer- metastaz ayırıcı tanısındaki yeri ve güvenilirliği irdelendi. Gereç ve Yöntem: Primer akciğer tümörü tanısı alan 111 olgu ve metastatik akciğer tümörü tanısı alan 23 olgu çalışmamıza dahil edildi. Primer akciğer tümörlerine genel olarak bakıldığında toplam 111 olgunun 78'inde yani %70'inde TTF-1 ekspresyonu saptandı. Özellikle küçük hücreli karsinom (%100) ve adenokarsinomlarda (%89) bu oran oldukça yüksekti. Metastatik akciğer tümörlerinde ise tiroid karsinom metastazında beklendiği gibi diffüz bir pozitiflik izlenirken, diğer tümör metastazlarının hiçbirinde TTF-1 ekspresyonu izlenmedi. Sonuç ve Tartışma: Bizim sonuçlarımız da göstermektedir ki, TTF-1 ekspresyonu primer akciğer tümörlerinin metastatik tümörlerinden ayırıcı tanısında oldukça değerli bir belirleyicidir ve İHK olarak rutin işleyişte kullanabileceğimiz sensitif (%70) ve oldukça spesifik (%100) bir metoddur.

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Cite This Article

NART, D., SARSIK, B., DOĞANAVŞARGİL, B., SEZAK, M., YAMAN, B., ÇİRİŞ, M., VERAL, A. (2008). The importance and reliability of thyroid transcription factor-1 expression to differential diagnosis in primary and metastatic lung cancers. Ege Tıp Dergisi, Cilt: 47 - Sayı: 3, 171–175. https://ajindex.com/articles/222856

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References (14)

  1. Civitareale D, Lonigro R, Sinclair AJ, et al. A Thyroid-specific nuclear protein essential for tissue-specific expression of the thyroglobulin promoter. EMBO J 1989; 8: 2527-2543
  2. Tan D, Li Q, Deeb G, et al. Thyroid transcription factor-1 expression prevalence and its clinical implications in non-small cell lung cancer: a high-throughput tissue microarray and immunohistochemistry study. Hum Pathol. 2003 Jun;34(6):597-604
  3. Kalhor N, Zander DS, Liu J. TTF-1 and p63 for distinguishing pulmonary small-cell carcinoma from poorly differentiated squamous cell carcinoma in previously pap-stained cytologic material. Modern Pathology (2006) 19, 1117-1123
  4. Afify AM, al-Khafaji BM. Diagnostic utility of thyroid transcription factor-1 expression in adenocarcinomas presenting in serous fluids. Acta Cytol 2002; 46: 675-678
  5. Ikeda K, Clark JC, Shaw-White JR, et al. Gene structure and expression of human thyroid transcription factor-1 in respiratory epithelial cells. J Biol Chem 1995; 270: 8108-14
  6. Reynolds PR, Mucenski ML, Whitsett JA. Thyroid transcription factor (TTF) -1 regulates the expression of midkine (MK) during lung morphogenesis. Dev Dyn. 2003 Jun;227(2):227-37
  7. Katoh R, Miyagi E, Nakamura N, et al. Expression of thyroid transcription factor-1 (TTF-1) in human C cells and medullary carcinomas. Hum Pathol 2000; 31: 386-393
  8. Bohinski RJ, Bejarano PA, Balko G, et al. Determination of lung as the primary site of cerebral metastatic adenocarcinomas using monoclonal antibody to thyroid transcription factor-1. J Neurooncol 1998; 40: 227-231
  9. Di Loreto C, Di Lauro V, Puglisi F, et al. Immunocytochemical expression of tissue specific transcription factor-1 in lung carcinoma. J Clin Pathol 1997: 50; 30-32
  10. Nakamura N, Miyagi E, Murata S, et al. Expression of thyroid transcription factor-1 in normal and neoplastic lung tissues. Mod Pathol 2002; 15: 1058-1067
  11. Khoor A, Whitsett JA, Stahlman MT, et al. Utility of surfactant protein B precursor and thyroid transcription factor-1 in differentiating adenocarcinoma of the lung from malignant mesothelioma. Hum Pathol 1999; 30: 695-700
  12. Prok AL, Prayson RA. Thyroid transcription factor-1 staining is useful in identifying brain metastases of pulmonary origin. Ann Diagn Pathol. 2006;10:67-71
  13. Bai XY, Shen H. Mutational analysis of thyroid transcription factor-1 gene (TTF-1) in lung carcinomas. In Vitro Cell Dev Biol Anim. 2008;44:17-25. Epub 2007 Dec 11
  14. Barlesi F, Pinot D, Legoffic A,