We present an integromic analysis of gene alterations that modulate transforming growth factor β (TGF-β)-Smad-mediated signaling in 9,125 tumor samples across 33 cancer types in The Cancer Genome Atlas (TCGA). Focusing on genes that encode mediators and regulators of TGF-β signaling, we found at least one genomic alteration (mutation, homozygous deletion, or amplification) in 39% of samples, with highest frequencies in gastrointestinal cancers. We identified mutation hotspots in genes that encode TGF-β ligands (BMP5), receptors (TGFBR2, AVCR2A, and BMPR2), and Smads (SMAD2 and SMAD4). Alterations in the TGF-β superfamily correlated positively with expression of metastasis-associated genes and with decreased survival. Correlation analyses showed the contributions of mutation, amplification, deletion, DNA methylation, and miRNA expression to transcriptional activity of TGF-β signaling in each cancer type. This study provides a broad molecular perspective relevant for future functional and therapeutic studies of the diverse cancer pathways mediated by the TGF-β superfamily. To date, there are no studies of the TGF-β superfamily of signaling pathways across multiple cancers. This study represents a key starting point for unraveling the role of this complex superfamily in 33 divergent cancer types from over 9,000 patients.

A Pan-Cancer Analysis Reveals High-Frequency Genetic Alterations in Mediators of Signaling by the TGF-β Superfamily / Korkut, A., Zaidi, S., Kanchi, R.S., Rao, S., Gough, N.R., Schultz, A., Li, X., Lorenzi, P.L., Berger, A.C., Robertson, G., Kwong, L.N., Datto, M., Roszik, J., Ling, S., Ravikumar, V., Manyam, G., Rao, A., Shelley, S., Liu, Y., Ju, Z., et al.. - In: CELL SYSTEMS. - ISSN 2405-4712. - 7:4(2018), p. 422. [10.1016/j.cels.2018.08.010]

A Pan-Cancer Analysis Reveals High-Frequency Genetic Alterations in Mediators of Signaling by the TGF-β Superfamily

Alvaro D.;Bragazzi M. C.;Cardinale V.;Carpino G.;Gaudio E.;
2018

Abstract

We present an integromic analysis of gene alterations that modulate transforming growth factor β (TGF-β)-Smad-mediated signaling in 9,125 tumor samples across 33 cancer types in The Cancer Genome Atlas (TCGA). Focusing on genes that encode mediators and regulators of TGF-β signaling, we found at least one genomic alteration (mutation, homozygous deletion, or amplification) in 39% of samples, with highest frequencies in gastrointestinal cancers. We identified mutation hotspots in genes that encode TGF-β ligands (BMP5), receptors (TGFBR2, AVCR2A, and BMPR2), and Smads (SMAD2 and SMAD4). Alterations in the TGF-β superfamily correlated positively with expression of metastasis-associated genes and with decreased survival. Correlation analyses showed the contributions of mutation, amplification, deletion, DNA methylation, and miRNA expression to transcriptional activity of TGF-β signaling in each cancer type. This study provides a broad molecular perspective relevant for future functional and therapeutic studies of the diverse cancer pathways mediated by the TGF-β superfamily. To date, there are no studies of the TGF-β superfamily of signaling pathways across multiple cancers. This study represents a key starting point for unraveling the role of this complex superfamily in 33 divergent cancer types from over 9,000 patients.
2018
cancer; DNA methylation; microRNA; mutation hotspot; Pan-Cancer; TCGA; TGF-β; TGF-β pathway; The Cancer Genome Atlas; transcription
01 Pubblicazione su rivista::01a Articolo in rivista
A Pan-Cancer Analysis Reveals High-Frequency Genetic Alterations in Mediators of Signaling by the TGF-β Superfamily / Korkut, A., Zaidi, S., Kanchi, R.S., Rao, S., Gough, N.R., Schultz, A., Li, X., Lorenzi, P.L., Berger, A.C., Robertson, G., Kwong, L.N., Datto, M., Roszik, J., Ling, S., Ravikumar, V., Manyam, G., Rao, A., Shelley, S., Liu, Y., Ju, Z., et al.. - In: CELL SYSTEMS. - ISSN 2405-4712. - 7:4(2018), p. 422. [10.1016/j.cels.2018.08.010]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1677286
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