Deciphering STAT3's negative regulation of LHPP in ESCC progression through single-cell transcriptomics analysis

Area of Science:

• Oncology
• Molecular Biology
• Genomics

Background:

• Esophageal Squamous Cell Carcinoma (ESCC) is a major global health issue with high mortality.
• Single-cell transcriptomics offers deep insights into tumor cellular and molecular heterogeneity.

Purpose of the Study:

• To investigate cellular dynamics and molecular mechanisms in ESCC.
• To determine the role of STAT3 in regulating LHPP expression within the ESCC tumor microenvironment.
• To identify potential therapeutic targets based on the STAT3-LHPP interaction.

Main Methods:

• Single-cell RNA sequencing of 44,206 cells from ESCC and adjacent normal tissues.
• Differential gene expression analysis to characterize the tumor microenvironment (TME).
• Quantitative PCR (qPCR) and cell line experiments for validation.

Main Results:

• Identified significant alterations in cell composition and gene expression, favoring pro-tumorigenic states.
• Discovered STAT3 directly represses LHPP expression at the promoter level in ESCC.
• Validated elevated STAT3 and suppressed LHPP in clinical ESCC samples.

Conclusions:

• STAT3 plays a critical regulatory role in ESCC by directly suppressing LHPP.
• The STAT3-LHPP axis is a crucial regulatory loop influencing tumor behavior.
• Targeting the STAT3-LHPP axis presents a promising therapeutic strategy for improving ESCC management and prognosis.