Thyroid transcription factor-1
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Thyroid transcription factor-1, abbreviated TTF-1 is a transcription factor seen in lung and thyroid.[1]
| Thyroid transcription factor-1 | |
|---|---|
| Immunostain in short | |
 TTF-1 staining in lung adenocarcinoma. (WC) | |
| Normal staining pattern | nuclear staining |
| Positive | adenocarcinoma of the lung, small cell carcinoma of the lung, thyroid, hepatocellular carcinoma (cytoplasmic staining) |
| Negative | squamous cell carcinoma of the lung |
Positive staining
- Nuclear staining.
Normal tissues
Tumours
Positive staining
- Lung adenocarcinoma.[2]
- Thyroid carcinoma.
- Hepatocellular carcinoma (cytoplasmic staining, nuclei negative).[3]
- Spindle cell oncocytoma / Pituicytoma / Granular cell tumor of the pituitary. [4]
- Subependymal giant cell astrocytoma [5]
Negative staining
- Squamous cell carcinoma of the lung.
- SMARCA4-deficient non-small cell carcinoma of the lung - typically ~ 5% of lung adenocarcinoma is TTF-1 negative.
Images
TTF1 in pulmonary adenocarcinoma (WC/Yale Rosen).
TTF1 in a Pituicytoma (WC/jensflorian).
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See also
References
- ↑ Ordóñez, NG. (Mar 2000). "Thyroid transcription factor-1 is a marker of lung and thyroid carcinomas.". Adv Anat Pathol 7 (2): 123-7. PMID 10721419.
- ↑ Yatabe, Y.; Mitsudomi, T.; Takahashi, T. (Jun 2002). "TTF-1 expression in pulmonary adenocarcinomas.". Am J Surg Pathol 26 (6): 767-73. PMID 12023581.
- ↑ Mishra, M.; Morgan, V.; Hamati, AK.; Al-Abbadi, M. (Jan 2012). "Carcinoma of unknown primary: check the liver... thanks to TTF-1.". Tenn Med 105 (1): 35-6, 40. PMID 22359993.
- ↑ Mete, O.; Lopes, MB.; Asa, SL. (Nov 2013). "Spindle cell oncocytomas and granular cell tumors of the pituitary are variants of pituicytoma.". Am J Surg Pathol 37 (11): 1694-9. doi:10.1097/PAS.0b013e31829723e7. PMID 23887161.
- ↑ Hewer, E.; Vajtai, I.. "Consistent nuclear expression of thyroid transcription factor 1 in subependymal giant cell astrocytomas suggests lineage-restricted histogenesis.". Clin Neuropathol 34 (3): 128-31. doi:10.5414/NP300818. PMID 25669749.
- ↑ Herpel, E.; Rieker, RJ.; Dienemann, H.; Muley, T.; Meister, M.; Hartmann, A.; Warth, A.; Agaimy, A. (Feb 2017). "SMARCA4 and SMARCA2 deficiency in non-small cell lung cancer: immunohistochemical survey of 316 consecutive specimens.". Ann Diagn Pathol 26: 47-51. doi:10.1016/j.anndiagpath.2016.10.006. PMID 28038711.