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Updated: Jun 28, 2026
Isolation of Cancer Stem Cells From Human Prostate Cancer Samples
Published on: March 14, 2014
[Isolation of Id1 interaction protein in human prostate cancer]
1Department of Pathophysiology, Medical College of Qingdao University, Qingdao, Shandong 266021, China. xiaoling_yu2004@163.com
Objective:
To isolate the inhibitor of DNA binding 1 (Id1) interaction protein and to determine the role and action mechanism of Id1 in human prostate cancer.
Methods:
The expression vector pET-28a/Id1 was established and used as a bait to prey the interaction protein by pull-down assay.
Results:
A clear interaction protein band was observed by SDS-PAGE, which was found to be activating transcription factor 3 (ATF3) by Western blotting.
Conclusion:
Id1 may play a role in human prostate cancer by interacting with ATF3.
Insights
Researchers identified activating transcription factor 3 (ATF3) as a protein interacting with inhibitor of DNA binding 1 (Id1). This interaction may reveal Id1's role in human prostate cancer progression.
Area of Science:
- Molecular biology
- Cancer research
- Protein-protein interactions
Context:
- The inhibitor of DNA binding 1 (Id1) is implicated in various cancers.
- Understanding Id1's interactions is crucial for elucidating its role in tumorigenesis.
- Prostate cancer remains a significant health concern, necessitating research into its molecular drivers.
Purpose:
- To identify proteins that interact with Id1.
- To investigate the functional mechanism of Id1 in human prostate cancer.
- To determine the specific role of Id1-interacting proteins in prostate cancer development.
Summary:
- The expression vector pET-28a/Id1 was constructed and utilized in pull-down assays to identify Id1-interacting proteins.
- SDS-PAGE and Western blotting confirmed the interaction between Id1 and activating transcription factor 3 (ATF3).
- This study successfully isolated ATF3 as an Id1-interacting protein.
Impact:
- Identifies a novel interaction between Id1 and ATF3.
- Provides a potential molecular mechanism for Id1's involvement in prostate cancer.
- Opens avenues for further research into Id1 and ATF3 as therapeutic targets in prostate cancer.
