Journal
BIOMOLECULES
Volume 11, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/biom11030392
Keywords
Curcuma longa; curcumin; anticancer; mechanism of action; cellular mechanisms; nanoformulations
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Funding
- Deanship of Scientific Research at Princess Nourah bint Abdulrahman University, through the Fast-track Research Funding Program
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Cancer is a major global burden, with research focusing on developing more effective and less toxic treatments. Curcumin has gained interest as an antioxidant, anticancer, and anti-inflammatory agent, but its poor water solubility limits its anticancer activity.
Cancer is a major burden of disease globally. Each year, tens of millions of people are diagnosed with cancer worldwide, and more than half of the patients eventually die from it. Significant advances have been noticed in cancer treatment, but the mortality and incidence rates of cancers are still high. Thus, there is a growing research interest in developing more effective and less toxic cancer treatment approaches. Curcumin (CUR), the major active component of turmeric (Curcuma longa L.), has gained great research interest as an antioxidant, anticancer, and anti-inflammatory agent. This natural compound shows its anticancer effect through several pathways including interfering with multiple cellular mechanisms and inhibiting/inducing the generation of multiple cytokines, enzymes, or growth factors including I kappa B kinase beta (I kappa K beta), tumor necrosis factor-alpha (TNF-alpha), signal transducer, and activator of transcription 3 (STAT3), cyclooxygenase II (COX-2), protein kinase D1 (PKD1), nuclear factor-kappa B (NF-kappa B), epidermal growth factor, and mitogen-activated protein kinase (MAPK). Interestingly, the anticancer activity of CUR has been limited primarily due to its poor water solubility, which can lead to low chemical stability, low oral bioavailability, and low cellular uptake. Delivering drugs at a controlled rate, slow delivery, and targeted delivery are other very attractive methods and have been pursued vigorously. Multiple CUR nanoformulations have also been developed so far to ameliorate solubility and bioavailability of CUR and to provide protection to CUR against hydrolysis inactivation. In this review, we have summarized the anticancer activity of CUR against several cancers, for example, gastrointestinal, head and neck, brain, pancreatic, colorectal, breast, and prostate cancers. In addition, we have also focused on the findings obtained from multiple experimental and clinical studies regarding the anticancer effect of CUR in animal models, human subjects, and cancer cell lines.
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