The Codon 72 TP53 Polymorphism Contributes to TSC Tumorigenesis through the Notch-Nodal Axis.

Abstract

We discovered that 90.3% of patients with angiomyolipomas, lymphangioleiomyomatosis (LAM), and tuberous sclerosis complex (TSC) carry the arginine variant of codon 72 (R72) of TP53 and that R72 increases the risk for angiomyolipoma. R72 transactivates NOTCH1 and NODAL better than the proline variant of codon 72 (P72); therefore, the expression of NOTCH1 and NODAL is increased in angiomyolipoma cells that carry R72. The loss of Tp53 and Tsc1 within nestin-expressing cells in mice resulted in the development of renal cell carcinomas (RCC) with high Notch1 and Nodal expression, suggesting that similar downstream mechanisms contribute to tumorigenesis as a result of p53 loss in mice and p53 polymorphism in humans. The loss of murine Tp53 or expression of human R72 contributes to tumorigenesis via enhancing epithelial-to-mesenchymal transition and motility of tumor cells through the Notch and Nodal pathways. IMPLICATIONS: This work revealed unexpected contributions of the p53 polymorphism to the pathogenesis of TSC and established signaling alterations caused by this polymorphism as a target for therapy. We found that the codon 72 TP53 polymorphism contributes to TSC-associated tumorigenesis via Notch and Nodal signaling.

• Authors: Jun-Hung Cho, Bhaumik Patel, Santosh Bonala, Hossein Mansouri, Sasikanth Manne, Surya Kumari Vadrevu, Shanawaz Ghouse, Che-Pei Kung, Maureen E Murphy, Aristotelis Astrinidis, Elizabeth P Henske, David J Kwiatkowski, Maciej M Markiewski, Magdalena Karbowniczek
• Journal: Molecular cancer research : MCR (Mol Cancer Res) Vol. 17 Issue 8 Pg. 1639-1651 (08 2019) ISSN: 1557-3125 [Electronic] United States
• PMID: 31088907 (Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, Non-P.H.S.)
• Copyright: ©2019 American Association for Cancer Research.

Chemical References

• Nodal Protein
• Receptor, Notch1
• TP53 protein, human
• TSC1 protein, human
• Trp53 protein, mouse
• Tsc1 protein, mouse
• Tuberous Sclerosis Complex 1 Protein
• Tumor Suppressor Protein p53

Topics

• Angiomyolipoma (genetics, metabolism, pathology)
• Animals
• Carcinogenesis (genetics, metabolism, pathology)
• Cell Movement
• Epithelial-Mesenchymal Transition
• Gene Expression Regulation, Neoplastic
• Humans
• Kidney Neoplasms (genetics, metabolism, pathology)
• Mice
• Mutation
• Nodal Protein (genetics, metabolism)
• Polymorphism, Single Nucleotide
• Receptor, Notch1 (genetics, metabolism)
• Tuberous Sclerosis (genetics, metabolism, pathology)
• Tuberous Sclerosis Complex 1 Protein (genetics, metabolism)
• Tumor Cells, Cultured
• Tumor Suppressor Protein p53 (genetics, metabolism, physiology)