Bioinformatics analysis of BIRC5 in human cancers

Area of Science:

• Oncology
• Molecular Biology
• Bioinformatics

Background:

• Baculoviral IAP repeat containing five (BIRC5) is an inhibitor of apoptosis (IAP) protein implicated in tumor development.
• The precise role and prognostic significance of BIRC5 in human cancers are not fully understood.

Purpose of the Study:

• To investigate the expression patterns of BIRC5 across various human cancers.
• To evaluate the prognostic value of BIRC5 in different cancer types.
• To explore the molecular mechanisms and clinical relevance of BIRC5 in tumorigenesis.

Main Methods:

• Utilized multiple bioinformatics databases including Oncomine, GEPIA, UALCAN, DriverDBv3, GeneMANIA, WebGestalt, and TIMER.
• Analyzed BIRC5 expression levels in tumor tissues versus normal tissues.
• Performed survival analysis (e.g., Cox analysis) and correlated BIRC5 expression with clinical factors (TP53 mutation, tumor grade/stage) and immune infiltration.

Main Results:

• BIRC5 was significantly upregulated in most human cancers compared to normal tissues.
• High BIRC5 expression correlated with increased mortality in adrenocortical carcinoma, kidney renal clear cell carcinoma, low-grade glioma, liver hepatocellular carcinoma, and lung adenocarcinoma.
• BIRC5 served as an independent predictor of poor overall survival and was associated with tumor characteristics and immune infiltration.

Conclusions:

• BIRC5 is a significant unfavorable prognostic biomarker in human cancers.
• The findings suggest BIRC5's oncogenic role in promoting cancer proliferation and its potential as a future therapeutic target.