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ALaqeel NK. Antioxidants from different citrus peels provide protection against cancer. BRAZ J BIOL 2023; 84:e271619. [PMID: 37436265 DOI: 10.1590/1519-6984.271619] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 05/04/2023] [Indexed: 07/13/2023] Open
Abstract
Cancer is one of the leading causes of death. Despite significant advancements in the discovery of medications for the treatment of cancer, these drugs are hindered by applicability and efficacy issues and frequently exhibit major side effects that can further impair patients 'quality of life. Therefore, the development of therapeutically sound anti-cancer medicines derived from natural products has gained prominence in the field of functional foods. Some of these compounds have shown efficacy in the prevention and treatment of cancer as well as low toxicity. Additionally, many recent studies have explored the recycling of agro-industrial waste to create bioactive chemicals. Citrus peels are produced in vast quantities in the food processing sector; due to their abundance of flavonoids, they may be inexpensive sources of protection against several cancers. Citrus is a common type of fruit that contains a variety of nutrients. In particular, the antioxidant chemicals found in citrus peel have been identified as potential cancer-fighting agents. Antioxidant substances such as flavonoids prevent the development of cancer by inhibiting the metastatic cascade, decreasing the mobility of cancer cells in the circulatory system, promoting apoptosis, and suppressing angiogenesis. To explore the most effective uses of citrus peel-derived antioxidants, this review presents background information, an overview of the role of citrus antioxidants in cancer therapy, and a discussion of the key underlying molecular mechanisms.
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Affiliation(s)
- Nouf Khalifa ALaqeel
- Imam Abdulrahman Bin Faisal University, College of Science, Department of Biology, Dammam, Saudi Arabia
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2
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Abstract
Citrus species are one of the world’s popular fruit crops, cultivated all over the world for their economic and nutritional values. Citrus, like other fruits and vegetables, are an important source of several antioxidant molecules (polyphenols, ascorbic acid, and carotenoids) that can inhibit the harmful effects of free radicals on the human body; due to their functional values and health-promoting properties, Citrus species are considered valuable fruits not only in agri-food industry, but also in pharmaceutical industry. Flavonoids are among the major constituents of polyphenols found in different parts of Citrus fruits (skin, peels, seed, pulp membrane, and juice). Flavonoids have different biological properties (antiviral, antifungal, and antibacterial activities). Several studies have also shown the health-related properties of Citrus flavonoids, especially antioxidant, anticancer, anti-inflammation, anti-aging, and cardiovascular protection activities. In the present review, attempts are made to discuss the current trends of research on flavonoids in different Citrus species.
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Di Cerbo A, Mescola A, Rosace G, Stocchi R, Rossi G, Alessandrini A, Preziuso S, Scarano A, Rea S, Loschi AR, Sabia C. Antibacterial Effect of Stainless Steel Surfaces Treated with a Nanotechnological Coating Approved for Food Contact. Microorganisms 2021; 9:microorganisms9020248. [PMID: 33530444 PMCID: PMC7910924 DOI: 10.3390/microorganisms9020248] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/22/2021] [Accepted: 01/22/2021] [Indexed: 11/16/2022] Open
Abstract
Stainless steel, widely present in the food industry, is frequently exposed to bacterial colonization with possible consequences on consumers' health. 288 stainless steel disks with different roughness (0.25, 0.5 and 1 μm) were challenged with four Gram-negative (Escherichia coli ATCC 25922, Salmonella typhimurium ATCC 1402, Yersinia enterocolitica ATCC 9610 and Pseudomonas aeruginosa ATCC 27588) and four Gram-positive bacteria (Staphylococcus aureus ATCC 6538, Enterococcus faecalis ATCC 29212, Bacillus cereus ATCC 14579 and Listeria monocytogenes NCTT 10888) and underwent three different sanitizing treatments (UVC, alcohol 70% v/v and Gold lotion). Moreover, the same procedure was carried out onto the same surfaces after a nanotechnological surface coating (nanoXHAM® D). A significant bactericidal effect was exerted by all of the sanitizing treatments against all bacterial strains regardless of roughness and surface coating. The nanoXHAM® D coating itself induced an overall bactericidal effect as well as in synergy with all sanitizing treatments regardless of roughness. Stainless steel surface roughness is poorly correlated with bacterial adhesion and only sanitizing treatments can exert significant bactericidal effects. Most of sanitizing treatments are toxic and corrosive causing the onset of crevices that are able to facilitate bacterial nesting and growth. This nanotechnological coating can reduce surface adhesion with consequent reduction of bacterial adhesion, nesting, and growth.
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Affiliation(s)
- Alessandro Di Cerbo
- School of Biosciences and Veterinary Medicine, University of Camerino, 62024 Matelica, Italy; (R.S.); (G.R.); (S.P.); (S.R.); (A.R.L.)
- Correspondence: ; Tel.: +39-0737-403466
| | - Andrea Mescola
- CNR-Nanoscience Institute-S3, 62024 Modena, Italy; (A.M.); (A.A.)
| | - Giuseppe Rosace
- Department of Engineering and Applied Sciences, University of Bergamo, 24044 Dalmine, Italy;
| | - Roberta Stocchi
- School of Biosciences and Veterinary Medicine, University of Camerino, 62024 Matelica, Italy; (R.S.); (G.R.); (S.P.); (S.R.); (A.R.L.)
| | - Giacomo Rossi
- School of Biosciences and Veterinary Medicine, University of Camerino, 62024 Matelica, Italy; (R.S.); (G.R.); (S.P.); (S.R.); (A.R.L.)
| | - Andrea Alessandrini
- CNR-Nanoscience Institute-S3, 62024 Modena, Italy; (A.M.); (A.A.)
- Department of Physics, Informatics e Mathematics, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Silvia Preziuso
- School of Biosciences and Veterinary Medicine, University of Camerino, 62024 Matelica, Italy; (R.S.); (G.R.); (S.P.); (S.R.); (A.R.L.)
| | - Antonio Scarano
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy;
| | - Stefano Rea
- School of Biosciences and Veterinary Medicine, University of Camerino, 62024 Matelica, Italy; (R.S.); (G.R.); (S.P.); (S.R.); (A.R.L.)
| | - Anna Rita Loschi
- School of Biosciences and Veterinary Medicine, University of Camerino, 62024 Matelica, Italy; (R.S.); (G.R.); (S.P.); (S.R.); (A.R.L.)
| | - Carla Sabia
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy;
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Guang C, Zhiwei Y, Liwen W, Yutaka M, Michiko S, Shiming L, Chi‐Tang H, Hui Z, Naiyao C. Formulated citrus peel extract gold lotion improves cognitive and functional recovery from traumatic brain injury (TBI) in rats. FOOD SCIENCE AND HUMAN WELLNESS 2020. [DOI: 10.1016/j.fshw.2020.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Stroe AC, Oancea S. Immunostimulatory Potential of Natural Compounds and Extracts: A Review. CURRENT NUTRITION & FOOD SCIENCE 2020. [DOI: 10.2174/1573401315666190301154200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The proper functioning of human immune system is essential for organism survival
against infectious, toxic and oncogenic agents. The present study aimed to describe the scientific evidence
regarding the immunomodulatory properties of the main micronutrients and specific phytochemicals.
Plants of food interest have the ability to dynamically affect the immune system through
particular molecules. Plant species, type of compounds and biological effects were herein reviewed
mainly focusing on plants which are not commonly used in food supplements. Several efficient phytoproducts
showed significant advantages compared to synthetic immunomodulators, being good
candidates for the development of immunotherapeutic drugs.
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Affiliation(s)
- Andreea C. Stroe
- Department of Agricultural Sciences and Food Engineering, "Lucian Blaga" University of Sibiu, 7-9 Ion Ratiu Street, Sibiu 550012, Romania
| | - Simona Oancea
- Department of Agricultural Sciences and Food Engineering, "Lucian Blaga" University of Sibiu, 7-9 Ion Ratiu Street, Sibiu 550012, Romania
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Iannitti T, Di Cerbo A, Loschi AR, Rea S, Suzawa M, Morales‐Medina JC. Repeated administration of a flavonoid-based formulated extract from citrus peels significantly reduces peripheral inflammation-induced pain in the rat. Food Sci Nutr 2020; 8:3173-3180. [PMID: 32724582 PMCID: PMC7382119 DOI: 10.1002/fsn3.1566] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/13/2020] [Accepted: 03/22/2020] [Indexed: 12/11/2022] Open
Abstract
Depression-related disorders are the first cause of disability worldwide according to the World Health Organization, and there is limited availability of effective antidepressant medications without side effects. Similarly, pain management is a public health concern particularly due to the increase in use of opioid medications, which have a significant side effect profile. Flavonoids can modulate numerous physiological functions including emotional and anti-nociceptive processes. Gold lotion (GL) is a natural product based on the extract of six citrus peels rich in flavonoids (0.45 mg/ml) with numerous reported biological activities. In the present study, we investigated the effect of repeated administration of GL in a battery of behavioral tests, including the open field test (OFT), forced swim test (FST), and von Frey test (vFT), in rats. While the OFT measured anxiolytic-related effects, the FST evaluated depression-related behavior. The vFT evaluated mechanical allodynia in two rat models of peripheral inflammation induced by carrageenan or complete Freund's adjuvant (CFA) administration. Treatment with GL reduced mechanical allodynia after either carrageenan or CFA administration. On the other hand, repeated GL administration did not modulate any behavior evaluated by OFT or FST. Consumption of GL inhibits behavioral signs of inflammatory pain. Therefore, GL may be a valuable analgesic product to be used for inflammatory pain.
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Affiliation(s)
- Tommaso Iannitti
- Charles River Discovery Research Services UK LimitedPortisheadUK
| | - Alessandro Di Cerbo
- School of Biosciences and Veterinary MedicineUniversity of CamerinoMatelicaItaly
| | - Anna Rita Loschi
- School of Biosciences and Veterinary MedicineUniversity of CamerinoMatelicaItaly
| | - Stefano Rea
- School of Biosciences and Veterinary MedicineUniversity of CamerinoMatelicaItaly
| | - Michiko Suzawa
- Miyauchi Citrus Research CenterShigoka‐MachiTakasakiGunmaJapan
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Lin CC, Wu JJ, Pan YG, Chao YH, Lin FC, Lee YR, Chu CL. Gold lotion from citrus peel extract ameliorates imiquimod-induced psoriasis-like dermatitis in murine. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2018; 98:5509-5517. [PMID: 29691866 DOI: 10.1002/jsfa.9097] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/16/2018] [Accepted: 04/18/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Gold lotion (GL), a natural mixed product made from the peels of six citrus fruits, has recently been identified as possessing anti-oxidative, anti-inflammatory, and immunomodulatory effects. GL has been used to protect skin against UV-induced damage, but its activity against psoriasis, a chronic autoimmune skin disease caused by dysregulation between immune cells and keratinocytes, is not known. We therefore evaluated the effect of GL on imiquimod (IMQ)-induced psoriasis-like inflammation in mice. RESULTS GL treatment significantly attenuated IMQ-induced psoriasis-like symptoms in mice. The inflammatory cytokines upregulated by IMQ in skin lesions were also inhibited by feeding GL. In addition, GL treatment reduced the infiltration of CD4+ T cells/neutrophils in skin lesions and the percentage of IL-17-/IL-22-producing T cells in lymph nodes. Furthermore, GL impaired IMQ-induced type I interferon production by plasmacytoid dendritic cells (pDCs) in vitro. CONCLUSION Our results indicate GL can act to suppress the initiation of psoriasis and strongly suggest that GL may have potential to be applied to the treatment of psoriasis. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Chi-Chien Lin
- Institute of Biomedical Sciences, National Chung-Hsing University, Taichung, Taiwan
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Jung-Ju Wu
- Department of Chinese Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - Yi-Gen Pan
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Ya-Hsuan Chao
- Institute of Biomedical Sciences, National Chung-Hsing University, Taichung, Taiwan
| | - Fang-Chu Lin
- Department of Chinese Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - Ying-Ray Lee
- Translational Medicine Research Center, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - Ching-Liang Chu
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan
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Chao CH, Cheng JC, Gonçalves TP, Huang KW, Lin CC, Huang HC, Hwang SY, Wu YC. Glaulactams A-C, daphniphyllum alkaloids from Daphniphyllum glaucescens. Sci Rep 2018; 8:15417. [PMID: 30337630 PMCID: PMC6193994 DOI: 10.1038/s41598-018-33748-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 10/07/2018] [Indexed: 02/07/2023] Open
Abstract
Glaulactams A-C (1-3), which possess a novel skeleton, as well as the known compound daphmanidin B (4), were isolated from the leaves of Daphniphyllum glaucescens and separated using ion-exchange chromatography aided by NMR fingerprinting. Their structures, including their absolute configurations, were elucidated by spectroscopic analyses and time-dependent density-functional-theory-calculated electronic circular dichroism spectra; the data were subsequently analyzed to gain insight into the respective biogenetic relationships between the isolates, which exhibited anti-H1N1 and immunosuppressive activities.
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Affiliation(s)
- Chih-Hua Chao
- School of Pharmacy, China Medical University, Taichung, 404, Taiwan.
- Chinese Medicine Research and Development Center and Department of Medical Research, China Medical University Hospital, Taichung, 404, Taiwan.
| | - Ju-Chien Cheng
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, 404, Taiwan
| | - Théo P Gonçalves
- Division of Physical Sciences and Engineering and KAUST Catalysis Center, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Kuo-Wei Huang
- Division of Physical Sciences and Engineering and KAUST Catalysis Center, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Chi-Chien Lin
- Institute of Biomedical Science, National Chung-Hsing University, Taichung, 402, Taiwan
- Department of Health and Nutrition, Asia University, Taichung, 413, Taiwan
| | - Hui-Chi Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung, 404, Taiwan
| | - Syh-Yuan Hwang
- Endemic Species Research Institute, Council of Agriculture, Nantou, 552, Taiwan
| | - Yang-Chang Wu
- Chinese Medicine Research and Development Center and Department of Medical Research, China Medical University Hospital, Taichung, 404, Taiwan.
- Graduate Institute of Natural Products and Research Center for Natural Products & Drug Development, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan.
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Chung TW, Li YR, Huang WY, Su JH, Chan HL, Lin SH, Liu CS, Lin SC, Lin CC, Lin CH. Sinulariolide suppresses LPS‑induced phenotypic and functional maturation of dendritic cells. Mol Med Rep 2017; 16:6992-7000. [PMID: 28901434 DOI: 10.3892/mmr.2017.7480] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 06/06/2017] [Indexed: 11/06/2022] Open
Abstract
The dendritic cell (DC) maturation process is essential for the development of T cell responses and immune tolerance. Accordingly, DCs are considered a major target in the development of immunomodulating agents. In the present study, the effect of sinulariolide, an active compound isolated from the cultured soft coral Sinularia flexibilis, on lipopolysaccharide (LPS)‑induced murine bone marrow‑derived DCs was evaluated. The different phenotypes, cytokine secretion and the mix‑lymphocyte reaction of DCs were detected using flow cytometry and ELISA. The experimental results revealed that the phenotypic and functional maturation of DCs stimulated by LPS were markedly reduced by sinulariolide in a concentration‑dependent manner, including the expression of co‑stimulatory molecules (CD40, CD80 and CD86). In addition, sinulariolide reduced the release of tumor necrosis factor‑α, interleukin (IL)‑6, IL‑12 and nitric oxide from the LPS‑activated DCs, decreased their abilities to stimulate allogeneic T cell proliferation, and inhibited LPS‑induced nuclear factor‑κB pathways. These findings offer novel insight into the immunopharmacological function of sinulariolide and its effects on DCs.
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Affiliation(s)
- Ting-Wen Chung
- Institute of Bioinformatics and Structural Biology and Department of Medical Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan, R.O.C
| | - Yi-Rong Li
- Department of Medical Research, Changhua Christian Hospital, Changhua 50006, Taiwan, R.O.C
| | - Wei Yuan Huang
- Institute of Biomedical Science, National Chung‑Hsing University, Taichung 40227, Taiwan, R.O.C
| | - Jui-Hsin Su
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan, R.O.C
| | - Hong-Lin Chan
- Institute of Bioinformatics and Structural Biology and Department of Medical Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan, R.O.C
| | - Sheng-Hao Lin
- Department of Medical Research, Changhua Christian Hospital, Changhua 50006, Taiwan, R.O.C
| | - Chin-San Liu
- Department of Medical Research, Changhua Christian Hospital, Changhua 50006, Taiwan, R.O.C
| | - Shih-Chao Lin
- Institute of Genomics and Bioinformatics, National Chung‑Hsing University, Taichung 40227, Taiwan, R.O.C
| | - Chi-Chien Lin
- Institute of Biomedical Science, National Chung‑Hsing University, Taichung 40227, Taiwan, R.O.C
| | - Ching-Hsiung Lin
- Department of Medical Research, Changhua Christian Hospital, Changhua 50006, Taiwan, R.O.C
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Yang G, Li S, Yuan L, Yang Y, Pan MH. Effect of nobiletin on the MAPK/NF-κB signaling pathway in the synovial membrane of rats with arthritis induced by collagen. Food Funct 2017; 8:4668-4674. [DOI: 10.1039/c7fo01311f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Nobiletin (5,6,7,8,3′,4′-hexamethoxyflavone) is a natural compound in the fruit peel of citrus fruit in the Rutaceae family.
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Affiliation(s)
- Guliang Yang
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Huanggang Normal University
- Hubei
- China
| | - Shiming Li
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Huanggang Normal University
- Hubei
- China
- Department of Food Science
- Rutgers University
| | - Li Yuan
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Huanggang Normal University
- Hubei
- China
| | - Yiwen Yang
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Huanggang Normal University
- Hubei
- China
| | - Min-Hsiung Pan
- Institute of Food Science and Technology
- National Taiwan University
- Taipei 10617
- Taiwan
- Department of Medical Research
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Lee SJ, Kim JJ, Kang KY, Hwang YH, Jeong GY, Jo SK, Jung U, Park HR, Yee ST. Herbal preparation (HemoHIM) enhanced functional maturation of bone marrow-derived dendritic cells mediated toll-like receptor 4. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 16:67. [PMID: 26891999 PMCID: PMC4759761 DOI: 10.1186/s12906-016-1045-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Accepted: 02/12/2016] [Indexed: 12/26/2022]
Abstract
Background HemoHIM, which is an herbal preparation of three edible herbs (Angelicam gigas Nakai, Cnidium offinale Makino, and Peaonia japonica Miyabe), is known to have various biological and immunological activities, but the modulatory effects of this preparation on dendritic cells (DCs)-mediated immune responses have not been examined previously. DCs are a unique group of white blood cells that initiate primary immune responses by capturing, processing, and presenting antigens to T cells. Results In the present study, we investigated the effect of HemoHIM on the functional and phenotypic maturation of murine bone marrow-derived dendritic cells (BMDCs) both in vitro and in vivo. The expression of co-stimulatory molecules (CD40, CD80, CD86, MHC I, and MHC II) and the production of cytokines (IL-1β, IL-6, IL-12p70, and TNF-α) were increased by HemoHIM in BMDCs. Furthermore, the antigen-uptake ability of BMDCs was decreased by HemoHIM, and the antigen-presenting ability of HemoHIM-treated mature BMDCs increased TLR4-dependent CD4+ and CD8+ T cell responses. Conclusions Our findings demonstrated that HemoHIM induces TLR4-mediated BMDCs functional and phenotypic maturation through in vivo and in vitro. And our study showed the antigen-presenting ability that HemoHIM-treated mature BMDCs increase CD4+ and CD8+ T cell responses by in vitro. These results suggest that HemoHIM has the potential to mediate DC immune responses.
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Aldahlawi AM. Modulation of dendritic cell immune functions by plant components. J Microsc Ultrastruct 2016; 4:55-62. [PMID: 30023210 PMCID: PMC6014213 DOI: 10.1016/j.jmau.2016.01.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 12/24/2015] [Accepted: 01/01/2016] [Indexed: 02/07/2023] Open
Abstract
Dendritic cells (DCs) are the key linkage between innate and adoptive immune response. DCs are classified as specialized antigen-presenting cells that initiate T-cell immune responses during infection and hypersensitivity, and maintain immune tolerance to self-antigens. Initiating T-cell immune responses may be beneficial in infectious diseases or cancer management, while, immunosuppressant or tolerogenic responses could be useful in controlling autoimmunity, allergy or inflammatory diseases. Several types of plant-derived components show promising properties in influencing DC functions. Various types of these components have been proven useful in clinical application and immune-based therapy. Therefore, focusing on the benefits of plant-based medicine regulating DC functions may be useful, low-cost, and accessible strategies for human health. This review illustrates recent studies, investigating the role of plant components in manipulating DC phenotype and function towards immunostimulating or immunosuppressing effects either in vitro or in vivo.
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Affiliation(s)
- Alia M Aldahlawi
- Department of Biological Sciences, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,Immunology Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
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13
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Naringenin inhibits dendritic cell maturation and has therapeutic effects in a murine model of collagen-induced arthritis. J Nutr Biochem 2015; 26:1467-78. [DOI: 10.1016/j.jnutbio.2015.07.016] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 07/19/2015] [Accepted: 07/19/2015] [Indexed: 12/20/2022]
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Chen D, Huang Y, Liang H, Xie Y. Column chromatographic extraction for quickly separating the volatiles, flavonoids, and pectin from tangerine peel. SEP SCI TECHNOL 2015. [DOI: 10.1080/01496395.2015.1086802] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Li J, Li J, Zhang F. The immunoregulatory effects of Chinese herbal medicine on the maturation and function of dendritic cells. JOURNAL OF ETHNOPHARMACOLOGY 2015; 171:184-195. [PMID: 26068430 DOI: 10.1016/j.jep.2015.05.050] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 05/29/2015] [Accepted: 05/29/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditional Chinese herbal medicine (CHM) has a long-history for treatment of various human diseases including tumors, infection, autoimmune diseases in Asian countries, especially in China, Japan, Korea and India. CHM was traditionally used as water extracts and many Chinese herbs were considered to be good for health, which can regulate immune system to protect host from diseases. With the progress of technology, the components of CHM were identified and purified, which included polysaccharides, saponins, phenolic compounds, flavonoids and so on. Recently, accumulating evidence indicates that CHM and its components can regulate immune system through targeting dendritic cells (DCs). We hereby reviewed the immunoregulatory effects of CHM on the maturation, cytokine production and function of DCs. This should help to shed light on the potential mechanism of CHM to improve the usage and clinical efficacy of CHM. MATERIALS AND METHODS Literatures about the effects of CHM on DCs were searched in electronic databases such as Pubmed, Google Scholar and Scopus from 2000 to 2014. 'CHM', 'DC' or 'immune' were used as keywords for the searches. We only reviewed literatures published in English. RESULTS Over 600 publications were found about 'CHM&immune' and around 120 literatures about 'CHM&DC' were selected and reviewed in this paper. All publications are backed by preclinical or clinical evidences both in vitro and in vivo. Some CHM and its components promote the maturation, pro-inflammatory cytokine production and function of DCs and as the adjuvant enhance immune responses against tumor and infection. In contrast, other CHM and its components suppress the activation status of DCs to induce regulatory T cells, inhibit allergic and inflammatory responses, ameliorate autoimmune diseases, and prolong the allograft survival. A large body of evidence shows that CHM and its components regulate the activation status of DCs through TLRs, NF-κB, MAPK signaling pathways. CONCLUSION This review provides useful information for understanding the mechanism of CHM on the treatment of diseases, which facilitates to improve the efficacy of CHM. Based on the immunoregulatory effects of CHM on DCs, it indicated that some CHM and its components could be use to develop adjuvant to enhance antigen-specific immune responses or tolerogenic adjuvant to generate antigen-specific immune tolerance.
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Affiliation(s)
- Jinyao Li
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, 14 Shengli Road, Urumqi 830046, China.
| | - Jinyu Li
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, 14 Shengli Road, Urumqi 830046, China
| | - Fuchun Zhang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, 14 Shengli Road, Urumqi 830046, China
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Rawson NE, Ho CT, Li S. Efficacious anti-cancer property of flavonoids from citrus peels. FOOD SCIENCE AND HUMAN WELLNESS 2014. [DOI: 10.1016/j.fshw.2014.11.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Anticancer activities of citrus peel polymethoxyflavones related to angiogenesis and others. BIOMED RESEARCH INTERNATIONAL 2014; 2014:453972. [PMID: 25250322 PMCID: PMC4163462 DOI: 10.1155/2014/453972] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2014] [Accepted: 07/28/2014] [Indexed: 01/16/2023]
Abstract
Citrus is a kind of common fruit and contains multiple beneficial nutrients for human beings. Flavonoids, as a class of plant secondary metabolites, exist in citrus fruits abundantly. Due to their broad range of pharmacological properties, citrus flavonoids have gained increased attention. Accumulative in vitro and in vivo studies indicate protective effects of polymethoxyflavones (PMFs) against the occurrence of cancer. PMFs inhibit carcinogenesis by mechanisms like blocking the metastasis cascade, inhibition of cancer cell mobility in circulatory systems, proapoptosis, and antiangiogenesis. This review systematically summarized anticarcinogenic effect of citrus flavonoids in cancer therapy, together with the underlying important molecular mechanisms, in purpose of further exploring more effective use of citrus peel flavonoids.
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