Transcriptome Analysis in Patients With Muscle-invasive Bladder Cancer

Area of Science:

• Oncology
• Molecular Biology
• Genomics

Background:

• Bladder cancer (BC) is a common urinary tract malignancy, with muscle-invasive BC (MIBC) representing a significant subtype.
• Transcriptome alterations play a crucial role in carcinogenesis and gene regulation within BC.
• Understanding these molecular changes is key to identifying novel therapeutic targets.

Purpose of the Study:

• To investigate and compare the transcriptome of muscle-invasive bladder cancer (MIBC) patients with that of healthy individuals.
• To identify differentially regulated genes and molecular pathways associated with MIBC.
• To enhance the understanding of the molecular basis of gene regulation in bladder cancer.

Main Methods:

• mRNA sequencing was performed using the Illumina NovaSeq 6000 Dx platform.
• A case series included 11 MIBC patients and 19 age- and sex-matched healthy controls.
• The pathfindR package was employed for pathway enrichment analysis within active subnetworks.

Main Results:

• Significant pathway differences were observed between MIBC patients and controls.
• Enriched pathways included spliceosome activity, oxidative phosphorylation, and chemical carcinogenesis mediated by reactive oxygen species.
• These findings highlight key molecular processes dysregulated in MIBC.

Conclusions:

• The identified molecular pathways in MIBC patients provide valuable information for understanding cancer predisposition.
• These novel pathway discoveries may guide the exploration of potential therapeutic strategies for bladder cancer.
• Further research into these pathways could lead to improved diagnostics and treatments for MIBC.