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STAT3 and Its Pathways' Dysregulation-Underestimated Role in Urological Tumors
Maciej Golus1, Piotr Bugajski2, Joanna Chorbińska1
1Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wrocław Medical University, 50-556 Wroclaw, Poland.
Abstract:
Nowadays, molecular research is essential for the better understanding of tumor cells' pathophysiology. The increasing number of neoplasms is taken under 'the molecular magnifying glass'; therefore, it is possible to discover the complex relationships between cytophysiology and tumor cells. Signal transducer and activator of transcription 3 (STAT3) belongs to the family of latent cytoplasmic transcription factors called STATs, which comprises seven members: STAT1, STAT2, STAT3, STAT4, STAT5A, STAT5B, and STAT6. Those proteins play important role in cytokine-activated gene expression by transducing signals from the cell membrane to the nucleus. Abnormal prolonged activation results in tumorigenesis, metastasis, cell proliferation, invasion, migration, and angiogenesis. Inhibition of this transcription factor inhibits the previously mentioned effects in cancer cells, whereas normal cells are not affected. Hence, STAT3 might be a viable target for cancer therapy.
Insights
Signal transducer and activator of transcription 3 (STAT3) is crucial in cancer development. Inhibiting STAT3 effectively halts tumor growth and spread without harming normal cells, making it a promising cancer therapy target.
Area of Science:
- Molecular biology
- Cancer research
- Cell signaling
Background:
- Understanding tumor cell pathophysiology relies on molecular research.
- Signal transducer and activator of transcription 3 (STAT3) is a key transcription factor in cellular signaling.
- Abnormal STAT3 activation is linked to cancer development, including metastasis and angiogenesis.
Purpose of the Study:
- To investigate the role of STAT3 in cancer.
- To evaluate STAT3 as a potential therapeutic target for neoplasms.
Main Methods:
- Review of molecular research on STAT3.
- Analysis of STAT3's function in cytokine-activated gene expression.
- Assessment of STAT3's impact on tumor cell proliferation, invasion, migration, and angiogenesis.
Main Results:
- STAT3 plays a significant role in transducing signals from the cell membrane to the nucleus.
- Prolonged STAT3 activation promotes tumorigenesis, metastasis, proliferation, invasion, migration, and angiogenesis.
- Inhibition of STAT3 effectively suppresses these cancer-promoting effects.
Conclusions:
- STAT3 is a critical factor in cancer progression.
- Targeting STAT3 offers a potential therapeutic strategy for cancer treatment.
- STAT3 inhibition demonstrates selectivity, sparing normal cells from adverse effects.
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