Weighted Gene Co-Expression Network Analysis Reveals Key Genes and Potential Drugs in Abdominal Aortic Aneurysm

Ke-Jia Kan1,2, Feng Guo1,2, Lei Zhu1,3

  • 1Department of Surgery, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany.

Biomedicines
|June 2, 2021
PubMed

Insights

Researchers identified key genes and potential drug targets for abdominal aortic aneurysm (AAA), a dangerous aortic disease. This study offers new insights into AAA progression and potential pharmaceutical therapies.

Area of Science:

  • Genomics
  • Molecular Biology
  • Cardiovascular Research

Background:

  • Abdominal aortic aneurysm (AAA) is a significant cause of mortality, characterized by gradual expansion and potential rupture.
  • The molecular mechanisms driving AAA progression and effective pharmaceutical treatments remain largely unidentified.
  • Understanding AAA pathogenesis is crucial for developing targeted therapies to prevent rupture.

Purpose of the Study:

  • To identify key molecular mechanisms and hub genes associated with abdominal aortic aneurysm (AAA) progression.
  • To validate identified genes across multiple datasets, including human and mouse samples.
  • To predict potential drug candidates for preventing AAA progression based on identified key genes.

Main Methods:

  • Weighted Gene Co-expression Network Analysis (WGCNA) was applied to the GSE17901 dataset to identify key modules and hub genes.
  • Gene expression data from mouse (GSE12591) and human (GSE7084, GSE47472, GSE57691) datasets were used for validation.
  • The Drug-Gene Interaction database was utilized to predict potential drug candidates targeting the identified key genes.

Main Results:

  • Key modules associated with AAA progression were identified, enriched in mitotic cell cycle, GTPase activity, and metabolic processes.
  • Seven crucial genes (CCR5, ADCY5, ADCY3, ACACB, LPIN1, ACSL1, UCP3) were identified as significantly related to AAA progression.
  • Thirty-five potential drug candidates targeting these key genes were predicted for their therapeutic potential in preventing AAA.

Conclusions:

  • This study successfully identified key genes and molecular pathways involved in abdominal aortic aneurysm (AAA) development.
  • The identified genes and predicted drug candidates offer promising avenues for developing novel pharmaceutical strategies against AAA.
  • Further research into these targets could lead to effective treatments for preventing AAA expansion and rupture.

Related Concept Videos

Genome-wide Association Studies-GWAS01:11

Genome-wide Association Studies-GWAS

Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
14.8K
Protein Networks02:26

Protein Networks

An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.2K
Aneurysm I: Introduction01:30

Aneurysm I: Introduction

An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
93
Regulation of Angiogenesis and Blood Supply01:24

Regulation of Angiogenesis and Blood Supply

Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
3.0K
Abdominal Aorta01:25

Abdominal Aorta

Once the aorta traverses the diaphragmatic plane at the aortic hiatus, it is known as the abdominal aorta. This anatomical structure is positioned leftward of the spinal column, encased within a cocoon of adipose tissue behind the peritoneal cavity. It terminates at the L4 vertebra, where it splits into the common iliac arteries. Prior to this bifurcation, the abdominal aorta gives rise to several vital branches.
The celiac trunk, a singular artery, divides into the left gastric artery, which...
1.4K