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Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro
Published on: July 5, 2017
Advances on Natural Polyphenols as Anticancer Agents for Skin Cancer
Soraya Sajadimajd1, Roodabeh Bahramsoltani2, Amin Iranpanah3
1Faculty of Science, Razi University, Kermanshah, Iran.
Abstract:
Polyphenols are one of most important phytochemicals distributing in herb plants, vegetables and fruits, which known as important anticancer agents. Given the high incidence and mortality of skin cancer, this study aimed to uncover the chemopreventive effects of polyphenols against skin cancer metastasis. Electronic databases including Scopus, PubMed, and Cochrane library were used to compile the literature from 2000 to August 2019. Only in vivo mechanistic studies with English full-texts were chosen for this review. Polyphenols were included in this study if they were administered in purified form; while total extract and fractions were excluded. Among the 8254 primarily selected papers, only a final number of 34 studies were included. The chemopreventive effects of polyphenols as anthocyanins, ellagitanins, EGCG, oleuropeindihydroxy phenyl, punicalagin, quercetin, resveratrol and theaflavin, were mainly examined in treatment of melanoma as the highly metastatic form of this cutaneous cancer. Those properties are mediated by modulation of angiogenesis, apoptosis, inflammation, metastasis, proliferation, pathways such as EGFR/MAPK, mTOR/PI3K/Akt, JAK/STAT, FAK/RTK2, PGE-2/VEGF, PGE-1/ERK/HIIF-1α, and modulation of related signals including NF-κB, P21WAF/CIP1, Bim, Bax, Bcl2, Bclx, Bim, Puma, Noxa, ILs and MMPs. Chemopreventive effects of polyphenols are mediated by several signaling pathways against skin carcinogenesis and metastasis, implying the importance of polyphenols to open up new horizons in development of anti-skin cancer therapeutic strategies.
Insights
Polyphenols, found in plants, show promise in preventing skin cancer metastasis by influencing key cellular pathways. This review highlights their potential in developing new anti-skin cancer therapies.
Area of Science:
- Phytochemistry
- Oncology
- Molecular Biology
Background:
- Polyphenols are vital phytochemicals in plants with known anticancer properties.
- Skin cancer incidence and mortality necessitate research into effective chemopreventive agents.
- Metastasis is a critical factor in skin cancer progression and patient outcomes.
Purpose of the Study:
- To review the in vivo chemopreventive effects of purified polyphenols against skin cancer metastasis.
- To identify specific polyphenols and their mechanisms of action in combating skin cancer.
- To explore the potential of polyphenols in developing novel therapeutic strategies for skin cancer.
Main Methods:
- Systematic literature review of studies published between 2000 and August 2019.
- Inclusion of in vivo mechanistic studies using purified polyphenols.
- Databases searched included Scopus, PubMed, and Cochrane Library.
Main Results:
- 34 studies were included, focusing on polyphenols like anthocyanins, EGCG, quercetin, and resveratrol.
- Polyphenols demonstrated chemopreventive effects against melanoma, a highly metastatic skin cancer.
- Mechanisms involved modulation of angiogenesis, apoptosis, inflammation, proliferation, and key signaling pathways (e.g., EGFR/MAPK, mTOR/PI3K/Akt).
Conclusions:
- Polyphenols effectively target multiple signaling pathways involved in skin carcinogenesis and metastasis.
- Specific polyphenols exhibit significant potential as therapeutic agents against skin cancer.
- Further research into polyphenols could lead to innovative anti-skin cancer strategies.
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