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Merging Absolute and Relative Quantitative PCR Data to Quantify STAT3 Splice Variant Transcripts
Published on: October 9, 2016
Role of STAT3 in cancer metastasis and translational advances
Mohammad Zahid Kamran1, Prachi Patil, Rajiv P Gude
1Gude lab, Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India.
Abstract:
Signal transducer and activator of transcription 3 (STAT3) is a latent cytoplasmic transcription factor, originally discovered as a transducer of signal from cell surface receptors to the nucleus. It is activated by tyrosine phosphorylation at position 705 leading to its dimerization, nuclear translocation, DNA binding, and activation of gene transcription. Under normal physiological conditions, STAT3 activation is tightly regulated. However, compelling evidence suggests that STAT3 is constitutively activated in many cancers and plays a pivotal role in tumor growth and metastasis. It regulates cellular proliferation, invasion, migration, and angiogenesis that are critical for cancer metastasis. In this paper, we first describe the mechanism of STAT3 regulation followed by how STAT3 is involved in cancer metastasis, then we summarize the various small molecule inhibitors that inhibit STAT3 signaling.
Insights
Signal transducer and activator of transcription 3 (STAT3) is crucial in cancer. This review details STAT3 regulation, its role in cancer metastasis, and emerging small molecule inhibitors targeting this pathway.
Area of Science:
- Molecular Biology
- Cell Biology
- Oncology
Background:
- Signal transducer and activator of transcription 3 (STAT3) is a transcription factor.
- STAT3 activation involves tyrosine phosphorylation, dimerization, and nuclear translocation.
- STAT3 is tightly regulated in normal physiology but constitutively activated in many cancers.
Purpose of the Study:
- To describe the mechanism of STAT3 regulation.
- To elucidate the role of STAT3 in cancer metastasis.
- To summarize small molecule inhibitors of STAT3 signaling.
Main Methods:
- Literature review of STAT3 regulation mechanisms.
- Analysis of STAT3's involvement in cancer progression.
- Compilation of data on STAT3-targeting small molecule inhibitors.
Main Results:
- STAT3 regulates key processes in cancer metastasis, including proliferation, invasion, migration, and angiogenesis.
- Constitutive STAT3 activation is implicated in tumor growth and spread.
- Various small molecule inhibitors targeting STAT3 signaling pathways have been identified.
Conclusions:
- STAT3 is a critical mediator of cancer metastasis.
- Targeting STAT3 signaling presents a promising therapeutic strategy for cancer treatment.
- Further research into STAT3 inhibitors is warranted for clinical application.
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