Wnt signaling in osteosarcoma

Carol H. Lin, Tao Ji, Cheng Fong Chen, Bang H. Hoang

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Osteosarcoma (OS) is the most common primary bone malignancy diagnosed in children and adolescents with a high propensity for local invasion and distant metastasis. Despite current multidisciplinary treatments, there has not been a drastic change in overall prognosis within the last two decades. With current treatments, 60–70 % of patients with localized disease survive. Given a propensity of Wnt signaling to control multiple cellular processes, including proliferation, cell fate determination, and differentiation, it is a critical pathway in OS disease progression. At the same time, this pathway is extremely complex with vast arrays of cross-talk. Even though decades of research have linked the role of Wnt to tumorigenesis, there are still outstanding areas that remain poorly understood and even controversial. The canonical Wnt pathway functions to regulate the levels of the transcriptional co-activator β-catenin, which ultimately controls key developmental gene expressions. Given the central role of this mediator, inhibition of Wnt/β- catenin signaling has been investigated as a potential strategy for cancer control. In OS, several secreted protein families modulate the Wnt/β-catenin signaling, including secreted Frizzled-related proteins (sFRPs), Wnt inhibitory protein (WIF), Dickkopf proteins (DKK-1,2,3), sclerostin, and small molecules. This chapter focuses on our current understanding of Wnt/β-catenin signaling in OS, based on recent in vitro and in vivo data. Wnt activates noncanonical signaling pathways as well that are independent of β-catenin which will be discussed. In addition, stem cells and their association with Wnt/β-catenin are important factors to consider. Ultimately, the multiple canonical and noncanonical Wnt/β-catenin agonists and antagonists need to be further explored for potential targeted therapies.

Original languageEnglish (US)
Pages (from-to)33-45
Number of pages13
JournalAdvances in Experimental Medicine and Biology
Volume804
DOIs
StatePublished - 2014
Externally publishedYes

Fingerprint

Catenins
Osteosarcoma
Wnt Proteins
Developmental Genes
Wnt Signaling Pathway
Proteins
Critical Pathways
Cell proliferation
Stem cells
Gene expression
Disease Progression
Neoplasms
Bone
Carcinogenesis
Stem Cells
Therapeutics
Cell Proliferation
Neoplasm Metastasis
Gene Expression
Bone and Bones

Keywords

  • Dickkopf
  • Frizzled-related proteins
  • Osteosarcoma
  • Wnt
  • Wnt inhibitory protein
  • β-catenin

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Wnt signaling in osteosarcoma. / Lin, Carol H.; Ji, Tao; Chen, Cheng Fong; Hoang, Bang H.

In: Advances in Experimental Medicine and Biology, Vol. 804, 2014, p. 33-45.

Research output: Contribution to journalArticle

Lin, Carol H. ; Ji, Tao ; Chen, Cheng Fong ; Hoang, Bang H. / Wnt signaling in osteosarcoma. In: Advances in Experimental Medicine and Biology. 2014 ; Vol. 804. pp. 33-45.
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