article · Biotechnology Advances
Curcumin demonstrates anti-inflammatory and neuroprotective effects that could benefit age-related and brain disorders. Clinical applications remain constrained by poor absorption, low specificity, and ineffective tissue delivery. Evidence from preclinical and human trials indicates that curcumin acts through several mechanisms, such as curbing neuroinflammation, adjusting cell signalling pathways, encouraging neurogenesis, and regulating dopamine. Its influence on microRNAs and cellular senescence points to further therapeutic targets. Its primary circulating metabolite, tetrahydrocurcumin, also displays anti-inflammatory potential, though its exact neuroprotective pathways require deeper investigation. To bypass delivery hurdles, bioengineered platforms are under development. Brain-targeting nanocarriers, including liposomes, micelles, and polymersomes, improve bioavailability and efficacy in animal models. Additionally, drug-laden scaffolds and dermal formulations could broaden delivery options for neuroprotection and for treating musculoskeletal and skin inflammation.
Brain disorders and age-related inflammatory illnesses present major healthcare burdens. While natural compounds like curcumin offer significant therapeutic mechanisms, getting sufficient amounts into targeted brain tissues has proven difficult. Advances in nanocarriers and targeted delivery platforms could unlock these natural molecules, transforming them into viable, effective medical treatments.
This research targets pharmaceutical and biomedical developers seeking to address neurodegeneration and chronic inflammation. Potential products include brain-targeting nanomedicines and engineered dermal patches or scaffolds. The technology remains at an early to intermediate stage: while delivery formulations such as nanocarriers have demonstrated improved efficacy in animal models, further long-term clinical safety and effectiveness studies are required before real-world commercial deployment.
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Curcumin, a natural compound found in turmeric, has shown promise in treating brain-related diseases and conditions associated with aging. Curcumin has shown multiple anti-inflammatory and brain-protective effects, but its clinical use is limited by challenges like poor absorption, specificity and delivery to the right tissues. A range of contemporary approaches at the intersection with bioengineering and systems biology are being explored to address these challenges. Data from preclinical and human studies highlight various neuroprotective actions of curcumin, including the inhibition of neuroinflammation, modulation of critical cellular signaling pathways, promotion of neurogenesis, and regulation of dopamine levels. However, curcumin's multifaceted effects - such as its impact on microRNAs and senescence markers - suggest novel therapeutic targets in neurodegeneration. Tetrahydrocurcumin, a primary metabolite of curcumin, also shows potential due to its presence in circulation and its anti-inflammatory properties, although further research is needed to elucidate its neuroprotective mechanisms. Recent advancements in delivery systems, particularly brain-targeting nanocarriers like polymersomes, micelles, and liposomes, have shown promise in enhancing curcumin's bioavailability and therapeutic efficacy in animal models. Furthermore, the exploration of drug-laden scaffolds and dermal delivery may extend the pharmacological applications of curcumin. Studies reviewed here indicate that engineered dermal formulations and devices could serve as viable alternatives for neuroprotective treatments and to manage skin or musculoskeletal inflammation. This work highlights the need for carefully designed, long-term studies to better understand how curcumin and its bioactive metabolites work, their safety, and their effectiveness.
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DOI: 10.1016/j.biotechadv.2025.108568
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