Bioactivity of Thyroid Hormone Analogs at Cancer Cells

Paul J Davis, Heng-Yuan Tang, Aleck Hercbergs, Hung-Yun Lin, Kelly A Keating, Shaker A Mousa

Research output: Contribution to journalReview article

Abstract

In the context of genomic thyroid hormone actions in normal (noncancer) cells that involve primary interactions with nuclear thyroid hormone receptors (TRs), L-thyroxine (T4), and 3,3',5'-triiodo-L-thyronine (reverse T3, rT3) have little bioactivity. In terms of TRs, T4 is a prohormone from which the active nuclear ligand, 3,5,3'-triido-L-thyronine (T3), is generated by deiodination. Deaminated T4 and T3 metabolites have different genomic effects: tetraiodothyroacetic acid (tetrac) is a low grade thyromimetic derivative of T4, whereas triiodothyroacetic acid (triac), the acetic acid metabolite of T3, has substantial thyromimetic activity. In cancer cells, the cell surface receptor for thyroid hormone on integrin αvβ3 mediates non-genomic actions of thyroid hormone analogs. The integrin is expressed in large measure by cancer cells and dividing endothelial cells and has a substantially different panel of responses to thyroid hormone analogs. At αvβ3, T4 is a potent proliferative, anti-apoptotic and pro-angiogenic hormone and is the primary ligand. rT3 may also be proliferative at this site. In contrast, tetrac and triac are antagonists of T4 at αvβ3, but also have anticancer properties at this site that are independent of their effects on the binding of T4.

Original languageEnglish
Pages (from-to)739
JournalFrontiers in Endocrinology
Volume9
DOIs
Publication statusPublished - 2018

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Thyroid Hormones
Thyronines
Thyroid Hormone Receptors
Integrins
Neoplasms
Ligands
Acids
Cell Surface Receptors
Cytoplasmic and Nuclear Receptors
Thyroxine
Acetic Acid
Endothelial Cells
Hormones
tetraiodothyroacetic acid

Cite this

Davis, P. J., Tang, H-Y., Hercbergs, A., Lin, H-Y., Keating, K. A., & Mousa, S. A. (2018). Bioactivity of Thyroid Hormone Analogs at Cancer Cells. Frontiers in Endocrinology, 9, 739. https://doi.org/10.3389/fendo.2018.00739

Bioactivity of Thyroid Hormone Analogs at Cancer Cells. / Davis, Paul J; Tang, Heng-Yuan; Hercbergs, Aleck; Lin, Hung-Yun; Keating, Kelly A; Mousa, Shaker A.

In: Frontiers in Endocrinology, Vol. 9, 2018, p. 739.

Research output: Contribution to journalReview article

Davis, PJ, Tang, H-Y, Hercbergs, A, Lin, H-Y, Keating, KA & Mousa, SA 2018, 'Bioactivity of Thyroid Hormone Analogs at Cancer Cells', Frontiers in Endocrinology, vol. 9, pp. 739. https://doi.org/10.3389/fendo.2018.00739
Davis, Paul J ; Tang, Heng-Yuan ; Hercbergs, Aleck ; Lin, Hung-Yun ; Keating, Kelly A ; Mousa, Shaker A. / Bioactivity of Thyroid Hormone Analogs at Cancer Cells. In: Frontiers in Endocrinology. 2018 ; Vol. 9. pp. 739.
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