Cited by 174TGF-β signaling in diseasesPancreatic and Hepatic Oncology ResearchSignaling Pathways in Disease

The TGF-β/Smad4 Signaling Pathway in Pancreatic Carcinogenesis and Its Clinical Significance

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Ahmed, Sunjida, Bradshaw, Azore-Dee, Gera, Shweta, Dewan, M., Xu, Ruliang·2017·Journal of Clinical Medicine

Abstract

Pancreatic ductal adenocarcinoma (PDAC) is one of the most fatal human cancers due to its complicated genomic instability. PDAC frequently presents at an advanced stage with extensive metastasis, which portends a poor prognosis. The known risk factors associated with PDAC include advanced age, smoking, long-standing chronic pancreatitis, obesity, and diabetes. Its association with genomic and somatic mutations is the most important factor for its aggressiveness. The most common gene mutations associated with PDAC include KRas2, p16, TP53, and Smad4. Among these, Smad4 mutation is relatively specific and its inactivation is found in more than 50% of invasive pancreatic adenocarcinomas. Smad4 is a member of the Smad family of signal transducers and acts as a central mediator of transforming growth factor beta (TGF-β) signaling pathways. The TGF-β signaling pathway promotes many physiological processes, including cell growth, differentiation, proliferation, fibrosis, and scar formation. It also plays a major role in the development of tumors through induction of angiogenesis and immune suppression. In this review, we will discuss the molecular mechanism of TGF-β/Smad4 signaling in the pathogenesis of pancreatic adenocarcinoma and its clinical implication, particularly potential as a prognostic factor and a therapeutic target.

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  • TGF-β/SMAD4 signaling pathway plays a pivotal role in pancreatic carcinogenesis, with TGF-β1 activating a SMAD4-dependent pathway crucial for regulating gene expression in normal pancreatic cells.

    “The TGF-β/SMAD4 signaling pathway plays a pivotal role in pancreatic carcinogenesis, with TGF-β1 activating a SMAD4-dependent pathway crucial for regulating gene expression in normal pancreatic cells.”
  • Smad4 loss or inactivation is linked to adverse prognostic outcomes, with intact SMAD4 expression associated with significantly improved median and five-year survival rates.

    “Notably, Smad4 loss or inactivation is linked to adverse prognostic outcomes, with intact SMAD4 expression associated with significantly improved median and five-year survival rates.”
  • Over 50% of PDAC cases exhibit TGF-β pathway mutations, prominently involving Smad4, which is lost in 60-90% of cases.

    “Over 50% of PDAC cases exhibit TGF-β pathway mutations, prominently involving Smad4, which is lost in 60–90% of cases.”
  • Activated TGFβ signaling is a critical upstream mediator of different pathways related to drug resistance.

    “Using ingenuity pathway analysis to assess 950 differentially expressed genes, it was found that activated TGFβ signaling is a critical upstream mediator of different pathways related to drug resistance [148].”

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Research works printed but not linked: 2

  1. [1]Kato Y. Inoue H. Yoshioka U. Fujiyama Y. Bamba T. Effects of transforming growth factor β1, interleukin-1β, tumor necrosis factor a and platelet-derived growth factor on the collagen synthesis and the proliferation of periacinal fibroblastoid cells isolated and cultured from rat pancreatic acini Pathophysiology 1999 3 175 179 10.1016/0928-4680(96)00012-0 · DOI
  2. [84]Vincent D.F. Yan K.-P. Treilleux I. Gay F. Arfi V. Kaniewski B. Marie J.C. Lepinasse F. Martel S. Goddard-Leon S. Inactivation of TIF1γ cooperates with Kras to induce cystic tumors of the pancreas PLoS Genet. 2009 5 e1000575 10.1371/annotation/7941c465-532f-4b42-b541-72d0810943b9 19629168 PMC2706992 · DOI

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Authors
Ahmed, S., Bradshaw, A.-D., Gera, S., Dewan, M., & Xu, R.
Affiliations
NYU Langone Health (US)
Corresponding author
Xu, Ruliang
Venue
Journal of Clinical Medicine
Publisher
MDPI AG
Published
2017-01-05
Volume
6
Issue
1
Pages
5
ISSN
2077-0383 (ISSN-L)
OpenAlex
W2571166948
Cited by
174
References
95
Citations by year
2026: 12 · 2025: 19 · 2024: 14 · 2023: 12 · 2022: 29 · 2021: 36 · 2020: 18 · 2019: 20 · 2018: 11 · 2017: 3
FWCI
1.33
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Medicine (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
School of Medicine, New York University
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Signaling Pathways in Disease
Keywords
pancreatic ductal adenocarcinoma, SMAD4 mutation, pancreatic carcinogenesis, KRAS mutation, TP53 mutation, p16, prognostic factors, therapeutic target, tumor angiogenesis, immunosuppression, chronic pancreatitis, metastasis

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