FOXP3, RORγt and IL-10 cytokine profile in chronic heart failure

Area of Science:

• Immunology
• Cardiology
• Molecular Biology

Background:

• Chronic heart failure (CHF) involves complex inflammatory processes regulated by distinct T cell subsets.
• Retinoic acid receptor-related orphan receptor-γt (RORγt) and Forkhead box P3 (FOXP3) are master regulators of Th17 and Treg cells, respectively.
• Interleukin-10 (IL-10) is an anti-inflammatory cytokine that may mitigate inflammation in CHF.

Purpose of the Study:

• To compare the protein expression of FOXP3, RORγt, and IL-10 in the blood of CHF patients versus healthy controls.
• To measure IL-10 levels in the supernatant of peripheral blood mononuclear cells (PBMCs) from CHF patients and controls.

Main Methods:

• The study included 42 CHF patients across four function classes and 42 healthy controls.
• Messenger RNA (mRNA) expression of FOXP3, RORγt, and IL-10 was determined using RT-PCR after RNA extraction and cDNA synthesis.
• IL-10 protein levels in PBMC supernatant were quantified using ELISA.

Main Results:

• No significant differences were observed in FOXP3, RORγt, or IL-10 protein expression between CHF patients and controls.
• IL-10 levels in the supernatant of PBMCs also showed no significant difference between the groups.
• A significant decrease in FOXP3 levels was noted in CHF patients with an ischemic etiology compared to those with a non-ischemic cause (p = 0.04).

Conclusions:

• The study did not find significant differences in the expression of FOXP3, RORγt, and IL-10 in CHF patients compared to controls.
• The specific roles of FOXP3, RORγt, and IL-10 in the pathophysiology of CHF warrant further investigation.
• Lower FOXP3 levels in ischemic CHF suggest a potential role in disease etiology or progression.