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Updated: Feb 5, 2026
Using Microarrays to Interrogate Microenvironmental Impact on Cellular Phenotypes in Cancer
Published on: May 21, 2019
The role of CCN4/WISP-1 in the cancerous phenotype
Mary P Nivison1, Kathryn E Meier1
1Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA, USA, kmeier@wsu.edu.
Abstract:
CCN proteins are secreted into the extracellular environment where they interact with both components of the extracellular matrix and with cell surface receptors to regulate cellular function. Through these interactions, CCNs act as extracellular ligands to activate intracellular signal transduction pathways. CCN4/WISP-1, like other CCNs, plays multiple physiologic roles in development and also participates in pathogenesis. CCN4 is of particular interest with respect to cancer, showing promise as a biomarker or prognostic factor as well as a potential therapeutic target. This review focuses on recent work addressing the role of CCN4 in cancer. While CCN4 has been identified as an oncogene in a number of cancers, where it enhances cell migration and promoting epithelial-mesenchymal transition, there are other cancers where CCN4 appears to play an inhibitory role. The mechanisms underlying these differences in cellular response have not yet been delineated, but are an active area of investigation. The expression and activities of CCN4 splice variants are likewise an emerging area for study. CCN4 acts as an autocrine factor that regulates the cancer cells from which it is secreted. However, CCN4 is also a paracrine factor that is secreted by stromal fibroblasts, and can affect the function of vascular endothelial cells. In summary, current evidence is abundant in regard to establishing potential roles for CCN4 in oncogenesis, but much remains to be learned about the functions of this fascinating protein as both an autocrine and paracrine regulator in the tumor microenvironment.
Insights
CCN4 (WISP-1) is a secreted protein with dual roles in cancer, acting as an oncogene in some cancers and a tumor suppressor in others. Its complex functions in the tumor microenvironment require further investigation.
Area of Science:
- Cellular and Molecular Biology
- Cancer Biology
- Extracellular Matrix Signaling
Background:
- CCN proteins are secreted extracellular matrix ligands that regulate cellular functions via cell surface receptors and intracellular signaling.
- CCN4 (WISP-1) is implicated in both physiological development and disease pathogenesis, with significant interest in its role in cancer.
- CCN4 exhibits potential as a cancer biomarker, prognostic factor, and therapeutic target.
Purpose of the Study:
- To review recent research on the multifaceted role of CCN4 in cancer.
- To explore the dual functions of CCN4 as both an oncogene and a tumor suppressor.
- To discuss the autocrine and paracrine mechanisms of CCN4 action within the tumor microenvironment.
Main Methods:
- Literature review of recent studies on CCN4 in cancer.
- Analysis of CCN4's involvement in cell migration and epithelial-mesenchymal transition.
- Examination of CCN4's autocrine and paracrine signaling in cancer.
Main Results:
- CCN4 can enhance cell migration and epithelial-mesenchymal transition, acting as an oncogene in certain cancers.
- Conversely, CCN4 demonstrates an inhibitory role in other cancer types, suggesting context-dependent functions.
- CCN4 functions as an autocrine factor for cancer cells and a paracrine factor influencing stromal fibroblasts and vascular endothelial cells.
Conclusions:
- CCN4 plays significant, yet complex and often opposing, roles in oncogenesis.
- The differential cellular responses to CCN4 require further elucidation of underlying mechanisms.
- Understanding CCN4's autocrine and paracrine regulation within the tumor microenvironment is crucial for future therapeutic strategies.
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