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Updated: May 31, 2026

An Orthotopic Murine Model of Human Prostate Cancer Metastasis
Published on: September 18, 2013
Angiogenin as a molecular target for the treatment of prostate cancer
Shuping Li1, Soichiro Ibaragi, Guo-Fu Hu
1Department of Pathology, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA.
Abstract:
Angiogenin (ANG), a 14 kDa angiogenic ribonuclease, is upregulated in human prostate cancers, especially in hormone refractory diseases, and is the highest upregulated gene in Akt-driven prostate intraepithelial neoplasia (PIN) in mice. ANG has been shown to undergo nuclear translocation in both prostate cancer cells and cancer-associated endothelial cells where it binds to the promoter region of ribosomal DNA (rDNA) and stimulates ribosomal RNA (rRNA) transcription. ANG thus plays an essential role in prostate cancer progression by stimulating both cancer cell proliferation and tumor angiogenesis. A variety of ANG antagonists, including its antisense oligonucleotide, siRNA, soluble binding proteins, monoclonal antibody, enzymatic inhibitors, and nuclear translocation blockers, have all been shown to inhibit prostate cancer in various animal models. Accumulating evidence indicates that ANG is a molecular target for prostate cancer drug development.
Insights
Angiogenin (ANG) is upregulated in prostate cancer, driving proliferation and angiogenesis. Blocking ANG shows promise for inhibiting cancer progression and developing new prostate cancer treatments.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Angiogenin (ANG), an angiogenic ribonuclease, is upregulated in human prostate cancers, particularly hormone-refractory diseases.
- ANG is the most upregulated gene in Akt-driven prostate intraepithelial neoplasia (PIN) in mouse models.
- ANG translocates to the nucleus, binding ribosomal DNA (rDNA) promoters to stimulate ribosomal RNA (rRNA) transcription.
Purpose of the Study:
- To investigate the role of Angiogenin (ANG) in prostate cancer progression.
- To evaluate ANG as a molecular target for prostate cancer therapy.
Main Methods:
- The study examines ANG's function in prostate cancer cells and associated endothelial cells.
- Various ANG antagonists were tested in animal models, including antisense oligonucleotides, siRNA, binding proteins, monoclonal antibodies, enzymatic inhibitors, and nuclear translocation blockers.
Main Results:
- ANG promotes prostate cancer progression by stimulating cancer cell proliferation and tumor angiogenesis.
- Multiple ANG antagonists demonstrated inhibition of prostate cancer in various animal models.
Conclusions:
- Angiogenin (ANG) plays a critical role in prostate cancer development and progression.
- ANG represents a promising molecular target for the development of novel prostate cancer therapeutics.
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