A composite conductive hydrogel loaded with alginate/gelatin microspheres with micro-environmentally induced smart temporal regulation for acute myocardial infarction treatment.

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Designing a temporal regulation system for responsive stem cell delivery that simultaneously addresses micro-environmental improvement in the infarcted area and electromechanical coupling compensation through synergistic stem cell therapy continues to pose substantial research challenges. We present a micro-environmentally induced smart temporal regulation composite conductive hydrogel for myocardial infarction therapy. Adipose derived stem cells (ADSC) were seeded on alginate (Alg)/gelatin (GT) composite microspheres (Alg/GT), which were encapsulated into reactive oxygen species (ROS) responsive conductive hydrogels (HGB) based on hyaluronic acid functionalized with phenylboronic acid (HA-PBA), dopamine-modified GT (GT-DA), and borate-functionalized polyaniline (BPA). Alg/GT microspheres exhibit excellent carrying capacity for ADSC and promoting ADSC paracrine effects. Besides the smart controlled release properties, the optimised hydrogel (HGB3) possesses a variety of functional properties including injectability, appropriate mechanical strength and electrical conductivity, anti-inflammatory and antioxidant properties. Together, these properties contribute to micro-environmental enhancement and electromechanical coupling restoration in the infarcted myocardial region. When the composite system was injected into the infarcted myocardifm, it achieved benign remodeling of the in

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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