Prediction of Coffee Effects in Rats with Healthy and NAFLD Conditions Based on Protein-Protein Interaction Network Analysis

Non-alcoholic fatty liver disease (NAFLD) is a common liver condition. On the other hand, coffee consumption has shown promising for gastrointestinal diseases.  Detection of the most valuable biomarkers of decaffeinated coffee treatment in healthy and non-alcoholic fatty liver disease conditions was the aim of the present study.

A previous proteomics study about effect of decaffeinated coffee (1.5 mL daily drinking coffee for two months) on protein expression change of rat liver was selected for protein-protein interaction (PPI) network analysis via Cytoscape v.3.7.1 and the related applications. The most central proteins with regards to a high degree and betweenness centralities in the coffee treatment condition of healthy and NAFLD were then analyzed by ClueGO for biological process (BP) derivation.

HSPA5, HSPA4, HSPA9, HSPA7, PARK7, HSP90AA1, P4HB, PRDX1, and PDIA3 were introduced as central proteins, which are involved in folding and antioxidant activities.

  There is a complicated combination of the components in coffee; some elements are involved in liver protection against NAFLD and the others are in contrast.