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Updated: Aug 14, 2026

Intramucosal Inoculation of Squamous Cell Carcinoma Cells in Mice for Tumor Immune Profiling and Treatment Response Assessment
Published on: April 22, 2019
Expression of Stat5A in tobacco chewing-mediated oral squamous cell carcinoma
Priyanka Kar1, Prakash C Supakar
1Institute of Life Sciences, Nalco Square, Bhubaneswar 751023, India.
Abstract:
Oral squamous cell carcinoma (oscc) is the fifth most common cancer worldwide and the number of cases is increasing regularly in the developing world. The effective detection of oscc at its early stages becomes necessary for proper treatment due to limited understanding of the critical pathways during oncogenesis. Signal transducer and activators of transcription (Stats) are an important group of transcription factors, which contribute to tumorigenesis due to their intimate connection to growth factor signalling, apoptosis, and angiogenesis. They also play a critical role in immune responses and hence defective Stat signalling could favour tumour development by compromising immune surveillance. The role of Stat5A in mammary gland carcinoma and leukaemia has already been reported. We for the first time report here the constitutive activation of Stat5A as one of the early events in tobacco mediated-oscc in the eastern Indian population, which can be used as a potent prognostic molecular marker.
Insights
Oral squamous cell carcinoma (OSCC) is rising globally. Researchers found constitutive activation of Stat5A in tobacco-induced OSCC, identifying it as an early event and potential prognostic marker.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Oral squamous cell carcinoma (OSCC) is a prevalent and increasing global cancer.
- Early detection is crucial due to limited understanding of oncogenesis pathways.
- Signal transducer and activators of transcription (Stats) are implicated in tumorigenesis and immune response.
Purpose of the Study:
- To investigate the role of Stat5A in the early stages of tobacco-mediated OSCC.
- To identify potential molecular markers for early OSCC detection.
Main Methods:
- The study focused on the eastern Indian population, a region with a high incidence of OSCC.
- Analysis of constitutive activation of Stat5A in relation to tobacco use and OSCC development.
Main Results:
- Constitutive activation of Stat5A was identified as an early event in tobacco-mediated OSCC.
- This activation was observed in the eastern Indian population.
Conclusions:
- Stat5A activation is an early oncogenic event in tobacco-induced OSCC.
- Stat5A activation serves as a potential prognostic molecular marker for early OSCC detection.
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