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SPOCK: Master regulator of malignant tumors (Review)
Mingyuan Xiao1, Jiancheng Xue2, Enli Jin1
1Department of Rehabilitation, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110134, P.R. China.
Abstract:
SPARC/osteonectin, CWCV and Kazal‑like domain proteoglycan (SPOCK) is a family of highly conserved multidomain proteins. In total, three such family members, SPOCK1, SPOCK2 and SPOCK3, constitute the majority of extracellular matrix glycoproteins. The SPOCK gene family has been demonstrated to serve key roles in tumor regulation by affecting MMPs, which accelerates the progression of cancer epithelial‑mesenchymal transition. In addition, they can regulate the cell cycle via overexpression, inhibit tumor cell proliferation by inactivating PI3K/AKT signaling and have been associated with numerous microRNAs that influence the expression of downstream genes. Therefore, the SPOCK gene family are potential cancer‑regulating genes. The present review summarizes the molecular structure, tissue distribution and biological function of the SPOCK family of proteins, in addition to its association with cancer. Furthermore, the present review documents the progress made in investigations into the role of SPOCK, whilst also discussing prospects for the future of SPOCK‑targeted therapy, to provide novel ideas for clinical application and treatment.
Insights
The SPOCK gene family, including SPOCK1, SPOCK2, and SPOCK3, plays a crucial role in regulating cancer progression and cell proliferation. This review explores their function and potential for targeted cancer therapies.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- The SPOCK (SPARC/osteonectin, CWCV and Kazal-like domain proteoglycan) gene family comprises highly conserved multidomain proteins.
- SPOCK1, SPOCK2, and SPOCK3 are major extracellular matrix glycoproteins with significant roles in biological processes.
Purpose of the Study:
- To review the molecular structure, tissue distribution, and biological functions of the SPOCK protein family.
- To summarize the association of the SPOCK gene family with various types of cancer.
- To discuss the potential of SPOCK-targeted therapies for clinical applications.
Main Methods:
- Literature review of existing studies on the SPOCK gene family.
- Analysis of molecular structure and protein interactions.
- Investigation of SPOCK gene expression and function in cancer models.
Main Results:
- SPOCK proteins are implicated in regulating matrix metalloproteinases (MMPs), impacting epithelial-mesenchymal transition.
- They influence cell cycle regulation and inhibit tumor cell proliferation by affecting PI3K/AKT signaling.
- SPOCK family members are associated with microRNAs, modulating downstream gene expression.
Conclusions:
- The SPOCK gene family exhibits significant potential as cancer-regulating genes.
- Understanding SPOCK's role is crucial for developing novel therapeutic strategies.
- Further research into SPOCK-targeted therapy may offer new clinical treatment options.
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