Multifaceted Cardioprotective Potential of Andrographolide: Modulator of Inflammatory, Stress-response, and ECM Remodeling Pathways in Cardiovascular Disease—In Vitro Analysis

Background Cardiovascular disease is the foremost basis of mortality and disability throughout the world, contributing to 40% of fatalities per year. Primary causes of cardiovascular diseases are ischemic diseases, heart stroke, myocardial dysfunction/cardiomyopathy, and atherosclerosis. The use of plant-based compounds as natural therapeutics is gaining importance in recent times. Andrographolide, a diterpenoid, has anti-inflammatory and anti-oxidative stress effects in a dose-dependent manner. Methodology In this study, we evaluated the modulatory effects of andrographolide on inflammatory cytokines, stress response regulators, and matrix metalloproteinases under oxidative (H 2 O 2 ) and disease-mimicking stress conditions. Results Our data reveal that andrographolide exerts a dual role, amplifying pro-inflammatory TNF-α while suppressing IL-6 and IL-10 and restoring IL-12 and TGF-β levels, suggesting a complex interplay between pro- and anti-inflammatory pathways. Additionally, andrographolide attenuates stress-associated HSP-27 and nuclear factor kappa-light-chain-enhancer of activated B cells activation, while enhancing RBFox1 and mitochondrial regulators such as SIRT-3, underscoring its potential to modulate both inflammatory and stress-adaptive responses. Notably, andrographolide robustly suppresses MMP1 but differentially regulates MMP3, MMP7, and MMP9, indicating selective control over extracellular matrix remodeling under stress. In summary, andrographolide demonstrates a multifaceted regulatory profile that simultaneously engages and dampens inflammatory and stress pathways while strategically directing extracellular matrix remodeling. Conclusion These insights warrant further investigation into the mechanistic roles of andrographolide in inflammation resolution, tissue repair, and possibly the prevention of fibrosis. The co-treatment with andrographolide shows promising modulatory potential, though its molecular actions require further probing. These findings lay the groundwork for more in-depth mechanistic studies and the development of potential cardioprotective strategies.