TTF-1 / NKX2-1 Overexpression Lysate

HEK293T cells in 10-cm dishes were transiently transfected with a non-lipid polymer transfection reagent specially designed and manufactured for large volume DNA transfection. Transfected cells were cultured for 48hrs before collection. The cells were lysed in modified RIPA buffer (25mM Tris-HCl pH7.6, 150mM NaCl, 1% NP-40, 1mM EDTA, 1xProteinase inhibitor cocktail mix, 1mM PMSF and 1mM Na3VO4, and then centrifuged to clarify the lysate. Protein concentration was measured by BCA protein assay kit.

The thyroid transcription factor 1 (TTF-1) is a homeodomain-containing transcription factor that activates the transcriptional activity of thyroid-specific gene promoters by binding to them. Hence, TTF-1 is crucial in the maintenance of the thyroid differentiation phenotype (1). Thyroid dysgenesis (TD) is responsible for most cases of congenital hypothyroidism, a condition that affects about one in 4000 newborns. Mutations in PAX8, TTF1, or FOXE1 may account for congenital hypothyroidism in patients with either isolated TD or TD with associated malformations involving kidney, lung, forebrain, and palate (2). In addition to its presence in thyroid gland epithelium, the human TTF-1 protein was detected by immunohistochemistry in human fetal lung as early as 11 weeks of gestation, being localized in the nuclei of epithelial cells of the developing airways. After birth, TTF-1 was selectively expressed in Type II epithelial cells in the alveoli and in subsets of bronchiolar epithelial cells in the conducting regions of the lung (3).

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Lysates are guaranteed for 6 months from date of receipt.

Array NBP2-11446

• TTF-1 / NKX2-1 Antibodies
• TTF-1 / NKX2-1 ELISA Kits
• TTF-1 / NKX2-1 Lysates
• TTF-1 / NKX2-1 Protein