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PTTG: an important target gene for ovarian cancer therapy
Siva Kumar Panguluri1, Casey Yeakel, Sham S Kakar
1Department of Physiology and Biophysics, James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40202, USA.
Abstract:
Pituitary tumor transforming gene (PTTG), also known as securin is an important gene involved in many biological functions including inhibition of sister chromatid separation, DNA repair, organ development, and expression and secretion of angiogenic and metastatic factors. Proliferating cancer cells and most tumors express high levels of PTTG. Overexpression of PTTG in vitro induces cellular transformation and development of tumors in nude mice. The PTTG expression levels have been correlated with tumor progression, invasion, and metastasis. Recent studies show that down regulation of PTTG in tumor cell lines and tumors in vivo results in suppression of tumor growth, suggesting its important role in tumorigenesis. In this review, we focus on PTTG structure, sub-cellular distribution, cellular functions, and role in tumor progression with suggestions on possible exploration of this gene for cancer therapy.
Insights
Pituitary tumor transforming gene (PTTG) drives tumor growth and metastasis. Inhibiting PTTG shows promise for suppressing cancer progression and developing new cancer therapies.
Area of Science:
- Molecular biology
- Genetics
- Oncology
Background:
- Pituitary tumor transforming gene (PTTG), also known as securin, plays a role in cell division and DNA repair.
- High PTTG expression is observed in various tumors and proliferating cancer cells.
- PTTG overexpression in vitro can lead to cellular transformation and tumor formation in vivo.
Purpose of the Study:
- To review the structure, sub-cellular distribution, and cellular functions of PTTG.
- To elucidate the role of PTTG in tumor progression, invasion, and metastasis.
- To explore the potential of PTTG as a target for novel cancer therapies.
Main Methods:
- Literature review of studies on PTTG.
- Analysis of PTTG expression in cancer cell lines and tumors.
- In vivo studies involving tumor xenografts.
Main Results:
- PTTG is implicated in inhibiting sister chromatid separation and promoting angiogenesis and metastasis.
- PTTG expression levels correlate with tumor progression, invasion, and metastasis.
- Down-regulation of PTTG has been shown to suppress tumor growth in vitro and in vivo.
Conclusions:
- PTTG is a key factor in tumorigenesis and cancer progression.
- Targeting PTTG may offer a viable strategy for cancer treatment.
- Further research into PTTG's mechanisms could lead to innovative therapeutic approaches.
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