1
|
Barut Z, Aslan M, Çırçırlı B, Çeker T, Yılmaz Ç. Antiproliferative Effect of 7-Ketositosterol in Breast and Liver Cancer Cells: Possible Impact on Ceramide, Extracellular Signal-Regulated Kinases, and Nuclear Factor Kappa B Signaling Pathways. Pharmaceuticals (Basel) 2024; 17:860. [PMID: 39065711 PMCID: PMC11279788 DOI: 10.3390/ph17070860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 06/28/2024] [Accepted: 06/30/2024] [Indexed: 07/28/2024] Open
Abstract
Background: This study aimed to examine the effect of 7-Ketositosterol (7-KSS), on sphingomyelin/ceramide metabolites and apoptosis in human breast MCF-7 and human liver HepG2 cancer cells. Methods: Anti-proliferative effects of 7-KSS treatment were assessed at different concentrations and periods. Cell viability was assessed through MTT analysis, whereas the levels of sphingosine-1-phosphate (S1P), sphingomyelins (SMs), and ceramides (CERs) were measured using LC-MS/MS. Phosphorylated 44/42 ERK1/2 and NF-κB p65 (Ser536) protein levels were measured by Western blot analysis and immunofluorescence staining. Apoptosis was evaluated by TUNEL staining and flow cytometric assessment of annexin-V and propidium iodide (PI) labeling. Results: Treatment with 7-KSS significantly decreased cell survival and S1P, p-44/42 ERK1/2, and p-NF-κB p65 protein levels in cancer cells compared to controls. A substantial rise was detected in intracellular amounts of C16-C24 CERs and apoptosis in cancer cells incubated with 7-KSS. Conclusions: 7-KSS stimulated ceramide accumulation and apoptosis while decreasing cell proliferation via downregulating S1P, p-44/42 ERK1/2, and p-NF-κB p65 protein levels.
Collapse
Affiliation(s)
- Zerrin Barut
- Faculty of Dentistry, Antalya Bilim University, 07190 Antalya, Turkey;
| | - Mutay Aslan
- Department of Medical Biochemistry, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey; (T.Ç.); (Ç.Y.)
- Department of Medical Biotechnology, Institute of Health Sciences, Akdeniz University, 07070 Antalya, Turkey;
| | - Bürke Çırçırlı
- Department of Medical Biotechnology, Institute of Health Sciences, Akdeniz University, 07070 Antalya, Turkey;
| | - Tuğçe Çeker
- Department of Medical Biochemistry, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey; (T.Ç.); (Ç.Y.)
| | - Çağatay Yılmaz
- Department of Medical Biochemistry, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey; (T.Ç.); (Ç.Y.)
| |
Collapse
|
2
|
Zheng Y, Zhao J, Chang S, Zhuang Z, Waimei S, Li X, Chen Z, Jing B, Zhang D, Zhao G. β-Sitosterol Alleviates Neuropathic Pain by Affect Microglia Polarization through Inhibiting TLR4/NF-κB Signaling Pathway. J Neuroimmune Pharmacol 2023; 18:690-703. [PMID: 38041701 DOI: 10.1007/s11481-023-10091-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 10/17/2023] [Indexed: 12/03/2023]
Abstract
The etiology of neuropathic pain is mostly caused by mechanical deformation and neuroinflammation, of which neuroinflammation is the main cause of chronic neuropathic pain. Activation of the TLR4/NF-κB signaling pathway mediates elevated levels of inflammatory cytokines, and we clearly demonstrated by in vivo and in vitro Western blot experiments that β-sitosterol significantly inhibited the elevated Toll-like receptor 4 (TLR4) expression levels and nuclear factor-kappa B (NF-κB) activation associated with inflammatory responses. In cellular experiments, we clearly saw that both β-sitosterol and TLR4/NF-κB signaling pathway inhibitors could inhibit M1 proinflammatory phenotype expression and promote M2 anti-inflammatory phenotype expression in GMI-R1 microglia by flow cytometry and immunofluorescence assays. Therefore, we suggest that β-sitosterol can affect microglial polarization by inhibiting the TLR4/NF-κB signaling pathway thereby reducing neuroinflammation and thus alleviating neuropathic pain.
Collapse
Affiliation(s)
- Yachun Zheng
- College of Traditional Chinese Medicine, Jinan University, Tianhe District, West of Huangpu Road No. 601, Guangzhou, 510632, China
- Department of Acupuncture and Rehabilitation, GuangDong Second Traditional Chinese Medicine Hospital, Guangzhou, China
| | - Jiaji Zhao
- Chemistry & Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou, China
| | - Shiquan Chang
- College of Traditional Chinese Medicine, Jinan University, Tianhe District, West of Huangpu Road No. 601, Guangzhou, 510632, China
| | - Zifeng Zhuang
- College of Traditional Chinese Medicine, Jinan University, Tianhe District, West of Huangpu Road No. 601, Guangzhou, 510632, China
| | - Si Waimei
- College of Traditional Chinese Medicine, Jinan University, Tianhe District, West of Huangpu Road No. 601, Guangzhou, 510632, China
| | - Xin Li
- College of Traditional Chinese Medicine, Jinan University, Tianhe District, West of Huangpu Road No. 601, Guangzhou, 510632, China
| | - Zenni Chen
- College of Traditional Chinese Medicine, Jinan University, Tianhe District, West of Huangpu Road No. 601, Guangzhou, 510632, China
| | - Bei Jing
- College of Traditional Chinese Medicine, Jinan University, Tianhe District, West of Huangpu Road No. 601, Guangzhou, 510632, China
| | - Di Zhang
- College of Traditional Chinese Medicine, Jinan University, Tianhe District, West of Huangpu Road No. 601, Guangzhou, 510632, China.
| | - Guoping Zhao
- College of Traditional Chinese Medicine, Jinan University, Tianhe District, West of Huangpu Road No. 601, Guangzhou, 510632, China.
| |
Collapse
|
3
|
Munawar M, Khan MS, Saeed M, Younas U, Farag MR, Di Cerbo A, El-Shall N, Loschi AR, Dhama K, Alagawany M. Phytosterol: nutritional significance, health benefits, and its uses in poultry and livestock nutrition. Anim Biotechnol 2023; 34:3206-3215. [PMID: 35839248 DOI: 10.1080/10495398.2022.2099882] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Medicinal plants with active ingredients have shown great potential as natural and sustainable additives in livestock and poultry diets as growth promoters, performance, feed conversion ratio, digestibility of nutrient enhancers, and antioxidants and immune system modulators. Among active ingredients, phytosterols, which are plant-based bio-factors that may be found in seeds, fruits, grains, vegetables and legumes, are thought to be involved in the aforementioned activities but are also widely known in human medicine due to their efficacy in treating diabetes, coronary heart disease, and tumors. Nevertheless, phytosterols can also promote carcinogens production, angiogenesis inhibition, metastasis, infiltration, and cancer cells proliferation. This review focuses on the deepening of the biological role and health benefits of phytosterols and their new potential application in poultry and livestock nutrition.
Collapse
Affiliation(s)
- Mahzaib Munawar
- Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan
| | | | - Muhammad Saeed
- Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan
| | - Umair Younas
- Cholistan University of Veterinary and Animal Sciences, Bahawalpur, Pakistan
| | - Mayada R Farag
- Forensic Medicine and Toxicology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Alessandro Di Cerbo
- School of Biosciences and Veterinary Medicine, University of Camerino, Matelica, Italy
| | - Nahed El-Shall
- Poultry and Fish Diseases Department, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Anna Rita Loschi
- School of Biosciences and Veterinary Medicine, University of Camerino, Matelica, Italy
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Bareilly, India
| | - Mahmoud Alagawany
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| |
Collapse
|
4
|
Chen Y, He S, Zeng A, He S, Jin X, Li C, Mei W, Lu Q. Inhibitory Effect of β-Sitosterol on the Ang II-Induced Proliferation of A7r5 Aortic Smooth Muscle Cells. Anal Cell Pathol (Amst) 2023; 2023:2677020. [PMID: 38028434 PMCID: PMC10645495 DOI: 10.1155/2023/2677020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 08/01/2023] [Accepted: 09/27/2023] [Indexed: 12/01/2023] Open
Abstract
Objective To explore the effects of β-sitosterol on VSMC proliferation. Materials and Methods A7r5 cells were pretreated with 2 µM angiotensin II (Ang II) for 24 hr to establish an excessive VSMC proliferation model, followed by treatment with β-sitosterol for 24 hr. Cells were divided into five groups: control, Ang II, and Ang II + β-sitosterol (2, 4, 8 µM). CCK-8 assay, flow cytometry, and Ad-mCherry-GFP-LC3B assay analyzed cell proliferation, cell cycle, cell apoptosis, and autophagic flux. Additionally, the expression of proteins was detected by the western blotting. Results β-Sitosterol effectively inhibited Ang II-induced A7r5 cell proliferation (IC50 : 6.841 µM at 24 hr). It achieved this by arresting cell cycle progression, promoting apoptosis, inhibiting autophagy, and suppressing the contractile-synthetic phenotypic switch. Mechanistically, β-sitosterol downregulated PCNA, Cyclin D1, and Bcl-2, while upregulating pro-caspase 3, cleaved-caspase 3, and Bax to induce cell cycle arrest and apoptosis. Additionally, it suppressed the contractile-synthetic phenotypic transformation by downregulating OPN and upregulating α-SMA. The Ad-mCherry-GFP-LC3B Assay and western blotting revealed β-sitosterol's autophagy inhibitory effects by downregulating LC3, ULK1, and Beclin-1 while upregulating P62 expression. Discussion and Conclusion. This study found for the first time that β-sitosterol could inhibit the proliferation of A7r5 cells induced by Ang II. β-Sitosterol treatment may be recommended as a therapeutic strategy to prevent the cardiovascular diseases.
Collapse
Affiliation(s)
- Yuankun Chen
- School of Basic Medical Sciences, Guangdong Pharmaceutical University, No. 280 East Outer Ring Road, Panyu District, Guangzhou, China
- Department of Infectious and Tropical Diseases, The Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Shumiao He
- School of Basic Medical Sciences, Guangdong Pharmaceutical University, No. 280 East Outer Ring Road, Panyu District, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, China
| | - Ao Zeng
- School of Basic Medical Sciences, Guangdong Pharmaceutical University, No. 280 East Outer Ring Road, Panyu District, Guangzhou, China
| | - Siqing He
- School of Basic Medical Sciences, Guangdong Pharmaceutical University, No. 280 East Outer Ring Road, Panyu District, Guangzhou, China
| | - Xiaobao Jin
- Guangdong Province Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, China
| | - Chunmei Li
- School of Basic Medical Sciences, Guangdong Pharmaceutical University, No. 280 East Outer Ring Road, Panyu District, Guangzhou, China
- Guangdong Province Engineering and Technology Center for Molecular Probe and Bio-medicine Imaging, Guangzhou, China
| | - Wenjie Mei
- Guangdong Province Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, China
| | - Qun Lu
- School of Basic Medical Sciences, Guangdong Pharmaceutical University, No. 280 East Outer Ring Road, Panyu District, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Province Engineering and Technology Center for Molecular Probe and Bio-medicine Imaging, Guangzhou, China
| |
Collapse
|
5
|
Farag MA, Reda A, Nabil M, Elimam DM, Zayed A. Evening primrose oil: a comprehensive review of its bioactives, extraction, analysis, oil quality, therapeutic merits, and safety. Food Funct 2023; 14:8049-8070. [PMID: 37614101 DOI: 10.1039/d3fo01949g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
Oil crops have become increasingly farmed worldwide because of their numerous functions in foods and health. In particular, oil derived from the seeds of evening primrose (Oenothera biennis) (EPO) comprises essential fatty acids of the omega-6 (ω-6) series. It is well recognized to promote immune cells with a healthy balance and management of female ailments. The nutrients of interest in this oil are linoleic acid (LA, 70-74%) and γ-linolenic acid (GLA, 8-10%), which are polyunsaturated fatty acids (PUFA) that account for EPO's popularity as a dietary supplement. Various other chemicals in EPO function together to supply the body with PUFA, elevate normal ω-6 essential fatty acid levels, and support general health and well-being. The inclusive EPO biochemical analysis further succeeded in identifying several other components, i.e., triterpenes, phenolic acids, tocopherols, and phytosterols of potential health benefits. This comprehensive review capitalizes on EPO, the superior product of O. biennis, highlighting the interrelationship between various methods of cultivation, extraction, holistic chemical composition, sensory characters, and medicinal value. Besides the literature review, this study restates the numerous health advantages of primrose oil and possible drug-EPO interactions since a wide spectrum of drugs are administered concomitantly with EPO. Modern techniques to evaluate EPO chemical composition are addressed with emphasis on the missing gaps and future perspectives to ensure best oil quality and nutraceutical benefits.
Collapse
Affiliation(s)
- Mohamed A Farag
- Pharmacognosy Department, College of Pharmacy, Cairo University, Kasr El Aini St., 11562 Cairo, Egypt.
| | - Ali Reda
- Chemistry Department, School of Sciences & Engineering, The American University in Cairo, New Cairo 11835, Egypt
| | - Mohamed Nabil
- Chemistry Department, School of Sciences & Engineering, The American University in Cairo, New Cairo 11835, Egypt
| | - Diaaeldin M Elimam
- Department of Pharmacognosy, Faculty of Pharmacy, Kafr Elsheikh University, Kafr El-sheikh, Egypt
| | - Ahmed Zayed
- Pharmacognosy Department, College of Pharmacy, Tanta University, Elguish street (Medical Campus), Tanta 31527, Egypt
| |
Collapse
|
6
|
Evtyugin DD, Evtuguin DV, Casal S, Domingues MR. Advances and Challenges in Plant Sterol Research: Fundamentals, Analysis, Applications and Production. Molecules 2023; 28:6526. [PMID: 37764302 PMCID: PMC10535520 DOI: 10.3390/molecules28186526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/04/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Plant sterols (PS) are cholesterol-like terpenoids widely spread in the kingdom Plantae. Being the target of extensive research for more than a century, PS have topped with evidence of having beneficial effects in healthy subjects and applications in food, cosmetic and pharmaceutical industries. However, many gaps in several fields of PS's research still hinder their widespread practical applications. In fact, many of the mechanisms associated with PS supplementation and their health benefits are still not fully elucidated. Furthermore, compared to cholesterol data, many complex PS chemical structures still need to be fully characterized, especially in oxidized PS. On the other hand, PS molecules have also been the focus of structural modifications for applications in diverse areas, including not only the above-mentioned but also in e.g., drug delivery systems or alternative matrixes for functional foods and fats. All the identified drawbacks are also superimposed by the need of new PS sources and technologies for their isolation and purification, taking into account increased environmental and sustainability concerns. Accordingly, current and future trends in PS research warrant discussion.
Collapse
Affiliation(s)
- Dmitry D. Evtyugin
- CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (D.D.E.); (D.V.E.)
- LAQV-REQUIMTE, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Dmitry V. Evtuguin
- CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (D.D.E.); (D.V.E.)
| | - Susana Casal
- LAQV-REQUIMTE, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Maria Rosário Domingues
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
- CESAM, Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| |
Collapse
|
7
|
Wang H, Wang Z, Zhang Z, Liu J, Hong L. β-Sitosterol as a Promising Anticancer Agent for Chemoprevention and Chemotherapy: Mechanisms of Action and Future Prospects. Adv Nutr 2023; 14:1085-1110. [PMID: 37247842 PMCID: PMC10509430 DOI: 10.1016/j.advnut.2023.05.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 05/15/2023] [Accepted: 05/23/2023] [Indexed: 05/31/2023] Open
Abstract
Cancer is one of the primary causes of death worldwide, and its incidence continues to increase yearly. Despite significant advances in research, the search for effective and nontoxic preventive and therapeutic agents remains greatly important. Cancer is a multimodal disease, where various mechanisms play significant roles in its occurrence and progression. This highlights the need for multitargeted approaches that are not only safe and inexpensive but also provide effective alternatives for current therapeutic regimens. β-Sitosterol (SIT), the most abundant phytosterol found in various plant foods, represents such an option. Preclinical evidence over the past few decades has overwhelmingly shown that SIT exhibits multiple anticancer activities against varied cancers, such as liver, cervical, colon, stomach, breast, lung, pancreatic, and prostate cancers, in addition to leukemia, multiple myeloma, melanoma, and fibrosarcoma. In this article, we present the latest advances and perspectives on SIT-systematically summarizing its antitumor mechanisms of action into 7 main sections and combining current challenges and prospects-for its use as a promising agent for cancer prevention and treatment. In particular, SIT plays a role in cancer prevention and treatment mainly by enhancing apoptosis, inducing cell cycle arrest, bidirectionally regulating oxidative stress, improving metabolic reprogramming, inhibiting invasion and metastasis, modulating immunity and inflammation, and combating drug resistance. Although SIT holds such great promise, the poor aqueous solubility and bioavailability coupled with low targeting efficacy limit its therapeutic efficacy and clinical application. Further research on novel drug delivery systems may improve these deficiencies. Overall, through complex and pleiotropic mechanisms, SIT has good potential for tumor chemoprevention and chemotherapy. However, no clinical trials have yet proven this potential. This review provides theoretical basis and rationality for the further design and conduct of clinical trials to confirm the anticancer activity of SIT.
Collapse
Affiliation(s)
- Haoyu Wang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhi Wang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zihui Zhang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jingchun Liu
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Li Hong
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China.
| |
Collapse
|
8
|
Rudzińska A, Juchaniuk P, Oberda J, Wiśniewska J, Wojdan W, Szklener K, Mańdziuk S. Phytochemicals in Cancer Treatment and Cancer Prevention-Review on Epidemiological Data and Clinical Trials. Nutrients 2023; 15:nu15081896. [PMID: 37111115 PMCID: PMC10144429 DOI: 10.3390/nu15081896] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/04/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Phytochemicals are a non-nutritive substances that are present in plants and contribute significantly to their flavor and color. These biologically active compounds are classified into five major groups, namely phenolics, carotenoids, organosulfur compounds, nitrogen-containing compounds, and alkaloids, and are known for their potential health benefits in the prevention of various diseases, including cancer. The purpose of this review article is to explore the potential therapeutic benefits of the dietary phytochemicals, such as flavonoids, phenolic acids, phytosterols, carotenoids, and stilbenes, in cancer treatment and prevention based on the epidemiological studies and clinical trials. Although the majority of epidemiological studies report a significant advantage of the heightened phytochemical consumption and increased serum levels of these compounds, linking increased exposure with a lower cancer risk across most cancer types, these effects could not be replicated in the most available clinical trials. In fact, many of these trials were withdrawn early due to a lack of evidence and/or risk of harm. Despite the strong anticancer effect of phytochemicals, as well as their proven efficacy in multiple epidemiological studies, there is still a great need for human studies and clinical trials, with great caution regarding the safety measures. This review article provides an overview of the epidemiological and clinical evidence supporting the potential chemopreventive and anticancer properties of phytochemicals, with a focus on the need for further research in this area.
Collapse
Affiliation(s)
- Anna Rudzińska
- Department of Clinical Oncology and Chemotherapy, Medical University of Lublin, 20-954 Lublin, Poland
| | - Pola Juchaniuk
- Department of Clinical Oncology and Chemotherapy, Medical University of Lublin, 20-954 Lublin, Poland
| | - Jakub Oberda
- Department of Clinical Oncology and Chemotherapy, Medical University of Lublin, 20-954 Lublin, Poland
| | - Jolanta Wiśniewska
- Department of Clinical Oncology and Chemotherapy, Medical University of Lublin, 20-954 Lublin, Poland
| | - Witold Wojdan
- Department of Clinical Oncology and Chemotherapy, Medical University of Lublin, 20-954 Lublin, Poland
| | - Katarzyna Szklener
- Department of Clinical Oncology and Chemotherapy, Medical University of Lublin, 20-954 Lublin, Poland
| | - Sławomir Mańdziuk
- Department of Clinical Oncology and Chemotherapy, Medical University of Lublin, 20-954 Lublin, Poland
| |
Collapse
|
9
|
Ghoshal G, Singh S, Sharma R. Utilization and characterization of flaxseed oil in ultrasonically emulsified mango beverage. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2022; 59:3867-3880. [PMID: 36193349 PMCID: PMC9525540 DOI: 10.1007/s13197-022-05410-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/20/2022] [Accepted: 02/09/2022] [Indexed: 06/16/2023]
Abstract
The present study described the formation of stable emulsion of flaxseed oil (0%, 0.25%, 0.50%, 0.75% v/v) in ready to serve Mango beverages using 20 kHz ultrasound of power input 21 W, 32 W, 43 W for varying times 3, 5, 7 min to create emulsion droplets size 100-800 nm. Oil was extracted by ultrasound-assisted extraction and solvent extraction method by varying solvents, time, ultrasonic intensity etc. and physio-chemical characterization was conducted. Fatty acid profiling revealed that linolenic acid and linoleic acid are major fatty acids present in extracted oil. Effect of flaxseed oil in fruit-based beverage was evaluated in terms of turbidity, pH, acidity, color, antioxidant activity and carotenoids content. Pectin stabilizes emulsion droplets by generating electrostatic repulsion (ζ potential - 25 mV) and the emulsions were stable upto 18 days at (4 ± 2) °C. The rheological behaviour in terms of viscosity of the emulsion stayed unaffected with sonication time upon storage. The carotenoids and antioxidant activity significantly increased from 151.37 to 292.24 µg/mL and 26.99% to 61.43% respectively at 0 to 0.75% added oil in the beverage and enhanced stability by preventing lipid oxidation. Organoleptic score of 0.25% and 0.50% of the flaxseed oil in the beverage was found to be acceptable.
Collapse
Affiliation(s)
- Gargi Ghoshal
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh, India
| | - Sukhwant Singh
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh, India
| | - Rajan Sharma
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh, India
- Department of Food Science and Technology, Punjab Agricultural University, Ludhiana, India
| |
Collapse
|
10
|
Patel S, Ashwanikumar N, Robinson E, Xia Y, Mihai C, Griffith JP, Hou S, Esposito AA, Ketova T, Welsher K, Joyal JL, Almarsson Ö, Sahay G. Naturally-occurring cholesterol analogues in lipid nanoparticles induce polymorphic shape and enhance intracellular delivery of mRNA. Nat Commun 2020; 11:983. [PMID: 32080183 PMCID: PMC7033178 DOI: 10.1038/s41467-020-14527-2] [Citation(s) in RCA: 231] [Impact Index Per Article: 57.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 01/14/2020] [Indexed: 12/12/2022] Open
Abstract
Endosomal sequestration of lipid-based nanoparticles (LNPs) remains a formidable barrier to delivery. Herein, structure-activity analysis of cholesterol analogues reveals that incorporation of C-24 alkyl phytosterols into LNPs (eLNPs) enhances gene transfection and the length of alkyl tail, flexibility of sterol ring and polarity due to -OH group is required to maintain high transfection. Cryo-TEM displays a polyhedral shape for eLNPs compared to spherical LNPs, while x-ray scattering shows little disparity in internal structure. eLNPs exhibit higher cellular uptake and retention, potentially leading to a steady release from the endosomes over time. 3D single-particle tracking shows enhanced intracellular diffusivity of eLNPs relative to LNPs, suggesting eLNP traffic to productive pathways for escape. Our findings show the importance of cholesterol in subcellular transport of LNPs carrying mRNA and emphasize the need for greater insights into surface composition and structural properties of nanoparticles, and their subcellular interactions which enable designs to improve endosomal escape.
Collapse
Affiliation(s)
- Siddharth Patel
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Robertson Life Sciences Building, 2730 Southwest Moody Avenue, Portland, OR, 97201, USA
| | - N Ashwanikumar
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Robertson Life Sciences Building, 2730 Southwest Moody Avenue, Portland, OR, 97201, USA
| | - Ema Robinson
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Robertson Life Sciences Building, 2730 Southwest Moody Avenue, Portland, OR, 97201, USA
| | - Yan Xia
- Moderna Therapeutics, 200 Technology Square, Cambridge, MA, 02139, USA
| | - Cosmin Mihai
- Moderna Therapeutics, 200 Technology Square, Cambridge, MA, 02139, USA
| | - Joseph P Griffith
- French Family Science Center, Department of Chemistry, 124 Science Drive, Duke University, Durham, NC, 27708, USA
| | - Shangguo Hou
- French Family Science Center, Department of Chemistry, 124 Science Drive, Duke University, Durham, NC, 27708, USA
| | - Adam A Esposito
- Moderna Therapeutics, 200 Technology Square, Cambridge, MA, 02139, USA
| | - Tatiana Ketova
- Moderna Therapeutics, 200 Technology Square, Cambridge, MA, 02139, USA
| | - Kevin Welsher
- French Family Science Center, Department of Chemistry, 124 Science Drive, Duke University, Durham, NC, 27708, USA
| | - John L Joyal
- Moderna Therapeutics, 200 Technology Square, Cambridge, MA, 02139, USA
| | - Örn Almarsson
- Moderna Therapeutics, 200 Technology Square, Cambridge, MA, 02139, USA
| | - Gaurav Sahay
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Robertson Life Sciences Building, 2730 Southwest Moody Avenue, Portland, OR, 97201, USA.
- Department of Biomedical Engineering, Oregon Health and Science University, Robertson Life Science Building, 2730 Southwest Moody Avenue, Portland, OR, 97201, USA.
| |
Collapse
|
11
|
Blanco-Vaca F, Cedó L, Julve J. Phytosterols in Cancer: From Molecular Mechanisms to Preventive and Therapeutic Potentials. Curr Med Chem 2020; 26:6735-6749. [PMID: 29874991 DOI: 10.2174/0929867325666180607093111] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 02/13/2018] [Accepted: 02/24/2018] [Indexed: 12/17/2022]
Abstract
Cancer is the second leading cause of death worldwide. Compelling evidence supports the hypothesis that the manipulation of dietary components, including plant compounds termed as phytochemicals, demonstrates certain important health benefits in humans, including those in cancer. In fact, beyond their well-known cardiovascular applications, phytosterols may also possess anticancer properties, as has been demonstrated by several studies. Although the mechanism of action by which phytosterols (and derivatives) may prevent cancer development is still under investigation, data from multiple experimental studies support the hypothesis that they may modulate proliferation and apoptosis of tumor cells. Phytosterols are generally considered safe for human consumption and may also be added to a broad spectrum of food matrices; further, they could be used in primary and secondary prevention. However, few interventional studies have evaluated the relationship between the efficacy of different types and forms of phytosterols in cancer prevention. In this context, the purpose of this review was to revisit and update the current knowledge on the molecular mechanisms involved in the anticancer action of phytosterols and their potential in cancer prevention or treatment.
Collapse
Affiliation(s)
- Francisco Blanco-Vaca
- Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau [IRHSCSP] i Institut d'Investigacio Biomedica Sant Pau [IIB-Sant Pau], Barcelona, Spain.,CIBER de Diabetes y Enfermedades Metabólicas Asociadas, Madrid, Spain.,Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Lídia Cedó
- Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau [IRHSCSP] i Institut d'Investigacio Biomedica Sant Pau [IIB-Sant Pau], Barcelona, Spain.,CIBER de Diabetes y Enfermedades Metabólicas Asociadas, Madrid, Spain
| | - Josep Julve
- Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau [IRHSCSP] i Institut d'Investigacio Biomedica Sant Pau [IIB-Sant Pau], Barcelona, Spain.,CIBER de Diabetes y Enfermedades Metabólicas Asociadas, Madrid, Spain
| |
Collapse
|
12
|
Liu R, Hao D, Xu W, Li J, Li X, Shen D, Sheng K, Zhao L, Xu W, Gao Z, Zhao X, Liu Q, Zhang Y. β-Sitosterol modulates macrophage polarization and attenuates rheumatoid inflammation in mice. PHARMACEUTICAL BIOLOGY 2019; 57:161-168. [PMID: 30905278 PMCID: PMC6442231 DOI: 10.1080/13880209.2019.1577461] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 12/14/2018] [Accepted: 01/28/2019] [Indexed: 05/31/2023]
Abstract
CONTEXT β-Sitosterol (BS), the primary constituent of plants and vegetables, exhibits multiple biological effects. OBJECTIVE This study explores its effect of immune-regulation on macrophages and its potential for rheumatoid arthritis (RA) therapy. MATERIALS AND METHODS In vitro, bone marrow-derived macrophages (BMDMs) were treated with 5, 25 and 50 μM BS in the M1 or M2 polarization conditions. In vivo, either i.p. injection with 20 or 50 mg/kg BS every 2 d after boost immunization of collagen-induced arthritis (CIA) or adoptive transfer of 2 × 106 BS-treated BMDMs (BS-BMDMs) at the day before CIA were adopted in mice to test the therapeutic effect. IL-10 antibody depletion was used in the period of above treatments to discuss the underlying mechanism. RESULTS The phenotypes and function of BMDMs showed that 5, 25 and 50 μM BS significantly repressed the M1 polarization and augmented M2 polarization dependent upon concentration. The expression of iNOS, IL-1β, CD86 and MHCII in 25 μM BS-treated M1-polarized BMDMs was reduced by 50.2, 47.1, 87.1 and 31.3%, respectively. In contrast, the expression of arginase-1, IL-10, CD163 and CD206 in 25 μM BS-treated M2-polarized BMDMs was increased by 65.6, 107.4, 23.5 and 51.3%, respectively. In CIA mice, either i.p. injection with BS or adoptive transfer of BS-BMDMs could alleviate the symptoms of ankle swelling (vehicle group: 3.13 ± 0.102 mm; 20 mg/kg BS group: 2.64 ± 0.043 mm; 50 mg/kg BS group: 2.36 ± 0.084 mm; BMDMs group: 3.09 ± 0.174 mm; BS-BMDMs group: 2.43 ± 0.042 mm), reduce the levels of collagen-specific antibodies (IgG and IgG1, but not IgG2c, p < 0.05) and inhibit the production of pro-inflammatory cytokines (p < 0.05). Depletion of IL-10 counteracted the effect of BS treatment (α-IL-10 vs. RatIgG1, p < 0.01 on day 16), highlighting the role of IL-10 in the anti-inflammatory response. CONCLUSIONS These results suggested that BS could modulate the functions of macrophages and might be a promising agent for RA therapy.
Collapse
Affiliation(s)
- Rui Liu
- Department of Rheumatism, Suzhou Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, PR China;
| | - Donglin Hao
- Department of Rheumatism, Suzhou Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, PR China;
| | - Wenya Xu
- Department of Rheumatism, Suzhou Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, PR China;
| | - Jinjin Li
- Department of Rheumatism, Suzhou Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, PR China;
| | - Xiaoru Li
- Department of Rheumatism, Suzhou Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, PR China;
| | - Dong Shen
- Department of Rheumatism, Suzhou Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, PR China;
- Department of Rheumatism, Suzhou Science & Technology Town Hospital, Suzhou, PR China
| | - Kang Sheng
- Department of Rheumatism, Suzhou Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, PR China;
| | - Lin Zhao
- Department of Rheumatism, Suzhou Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, PR China;
| | - Weiwei Xu
- Department of Rheumatism, Suzhou Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, PR China;
| | - Zhongen Gao
- Department of Rheumatism, Suzhou Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, PR China;
| | - Xu Zhao
- Department of Rheumatism, Suzhou Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, PR China;
| | - Qiuhong Liu
- Department of Rheumatism, Suzhou Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, PR China;
| | - Yiting Zhang
- Department of Rheumatism, Suzhou Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, PR China;
| |
Collapse
|
13
|
Nazir M, Arif S, Khan RS, Nazir W, Khalid N, Maqsood S. Opportunities and challenges for functional and medicinal beverages: Current and future trends. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.04.011] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
14
|
Sánchez-Crisóstomo I, Fernández-Martínez E, Cariño-Cortés R, Betanzos-Cabrera G, Bobadilla-Lugo RA. Phytosterols and Triterpenoids for Prevention and Treatment of Metabolic-related Liver Diseases and Hepatocellular Carcinoma. Curr Pharm Biotechnol 2019; 20:197-214. [DOI: 10.2174/1389201020666190219122357] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 11/10/2018] [Accepted: 02/09/2019] [Indexed: 12/17/2022]
Abstract
Background:
Liver ailments are among the leading causes of death; they originate from viral
infections, chronic alcoholism, and autoimmune illnesses, which may chronically be precursors of
cirrhosis; furthermore, metabolic syndrome may worsen those hepatopathies or cause Non-alcoholic
Fatty Liver Disease (NAFLD) that may advance to non-alcoholic steatohepatitis (NASH). Cirrhosis is
the late-stage liver disease and can proceed to hepatocellular carcinoma (HCC). Pharmacological
treatment options for liver diseases, cirrhosis, and HCC, are limited, expensive, and not wholly effective.
The use of medicinal herbs and functional foods is growing around the world as natural resources
of bioactive compounds that would set the basis for the development of new drugs.
Review and Conclusion:
Plant and food-derived sterols and triterpenoids (TTP) possess antioxidant,
metabolic-regulating, immunomodulatory, and anti-inflammatory activities, as well as they are recognized
as anticancer agents, suggesting their application strongly as an alternative therapy in some
chronic diseases. Thus, it is interesting to review current reports about them as hepatoprotective agents,
but also because they structurally resemble cholesterol, sexual hormones, corticosteroids and bile acids
due to the presence of the steroid nucleus, so they all can share pharmacological properties through activating
nuclear and membrane receptors. Therefore, sterols and TTP appear as a feasible option for the
prevention and treatment of chronic metabolic-related liver diseases, cirrhosis, and HCC.
Collapse
Affiliation(s)
- Isabel Sánchez-Crisóstomo
- Center for Research on Reproductive Biology, School of Health Sciences, Autonomous University of Hidalgo's State, Pachuca, Mexico
| | - Eduardo Fernández-Martínez
- Laboratory of Medicinal Chemistry and Pharmacology, Department of Medicine, School of Health Sciences, Autonomous University of Hidalgo's State, Pachuca, Mexico
| | - Raquel Cariño-Cortés
- Center for Research on Reproductive Biology, School of Health Sciences, Autonomous University of Hidalgo's State, Pachuca, Mexico
| | - Gabriel Betanzos-Cabrera
- Laboratory of Medicinal Chemistry and Pharmacology, Department of Medicine, School of Health Sciences, Autonomous University of Hidalgo's State, Pachuca, Mexico
| | | |
Collapse
|
15
|
Alvarez-Sala A, Attanzio A, Tesoriere L, Garcia-Llatas G, Barberá R, Cilla A. Apoptotic effect of a phytosterol-ingredient and its main phytosterol (β-sitosterol) in human cancer cell lines. Int J Food Sci Nutr 2018; 70:323-334. [PMID: 30192685 DOI: 10.1080/09637486.2018.1511689] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Dietary interventions may effectively control cancer development, with phytosterols (PS) being a class of cancer chemopreventive dietary phytochemicals. The present study, for the first time, evaluates the antiproliferative effects of a PS-ingredient used for the enrichment of several foods and its main PS, β-sitosterol, at physiological serum levels, in the most prevalent cancer cells in women (breast (MCF-7), colon (HCT116) and cervical (HeLa)). In all three cell lines, these compounds induced significant cell viability reduction without a clear time- and dose-dependent response. Moreover, all treatments produced apoptotic cell death with the induction of DNA fragmentation through the appearance of a sub-G1 cell population. Thus, the use of PS as functional ingredients in the development of PS-enriched foods could exert a potential preventive effect against human breast, colon and cervical cancer, although further in vivo studies are required to confirm our preclinical findings.
Collapse
Affiliation(s)
- Andrea Alvarez-Sala
- a Nutrition and Food Science Area, Faculty of Pharmacy , University of Valencia , Valencia , Spain
| | - Alessandro Attanzio
- b Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF) , University of Palermo , Palermo , Italy
| | - Luisa Tesoriere
- b Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF) , University of Palermo , Palermo , Italy
| | - Guadalupe Garcia-Llatas
- a Nutrition and Food Science Area, Faculty of Pharmacy , University of Valencia , Valencia , Spain
| | - Reyes Barberá
- a Nutrition and Food Science Area, Faculty of Pharmacy , University of Valencia , Valencia , Spain
| | - Antonio Cilla
- a Nutrition and Food Science Area, Faculty of Pharmacy , University of Valencia , Valencia , Spain
| |
Collapse
|
16
|
Qasimi MI, Nagaoka K, Watanabe G. The effects of phytosterols on the sexual behavior and reproductive function in the Japanese quail (Coturnix coturnix japonica). Poult Sci 2018. [PMID: 28637324 DOI: 10.3382/ps/pex161] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Phytosterols (PS) are plant origin sterols naturally found in many foods and added as food additives. Since 1950, PS have attracted considerable attention due to their ability to lower serum cholesterol and inhibit cardiovascular disease (CVD). However, recent studies have found that PS act as endocrine-disrupting chemicals in laboratory animals. Therefore, this study was aimed at finding the mechanism(s) for PS effects on the sexual behaviors and reproductive functions in male Japanese quails (Coturnix coturnix japonica). At 15 d of age, 30 male Japanese quails were randomly assigned to 3 groups for the chronic in-vivo experiment. Animals were gavaged daily with single dose of PS suspension (PS dissolved in medium chain triglyceride [MCT]) into the crop sac from 15-100 d of age. Following maturation, a sexual behavior test, semen collection, and test of fertilization ability were performed. Blood was collected by cervical dislocation at 100 day of age for hormones analysis. To observe the direct effects of PS on the testis, interstitial cells of the normal testes were cultured for 24 h. Ovine-LH (O-LH) was used for half of each group to stimulate interstitial cells for testosterone production. The results showed that chronic doses of PS reduced (P < 0.01) mount and copulation behavior in male quails (primarily in the group receiving 800 mg/kg BW). Both acute in vitro and chronic in vivo experiments revealed a reduction in testosterone (P < 0.05) after PS treatments; concomitantly, Leydig cell numbers were also low (P < 0.05) at a dose of 800 mg/kg BW. Real-time PCR results showed lower expression of 17β-hydroxysteroid dehydrogenase (17β-HSD) at the same dose. The results suggested that feeding large amounts of PS reduced testosterone levels and sexual behavior by affecting Leydig cell proliferation, and cholesterol trafficking, 17β-HSD expression in the testes of male Japanese quail.
Collapse
Affiliation(s)
- Mohammad Ibrahim Qasimi
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-Cho, Fuchu, Tokyo, 183-8509, Japan; Department of Basic Veterinary Science, the United Graduate School of Veterinary Sciences, Gifu University, Gifu 501-1193, Japan
| | - Kentaro Nagaoka
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-Cho, Fuchu, Tokyo, 183-8509, Japan; Department of Basic Veterinary Science, the United Graduate School of Veterinary Sciences, Gifu University, Gifu 501-1193, Japan
| | - Gen Watanabe
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-Cho, Fuchu, Tokyo, 183-8509, Japan; Department of Basic Veterinary Science, the United Graduate School of Veterinary Sciences, Gifu University, Gifu 501-1193, Japan.
| |
Collapse
|
17
|
Exploring the biophysical properties of phytosterols in the plasma membrane for novel cancer prevention strategies. Biochimie 2018; 153:150-161. [PMID: 29730298 DOI: 10.1016/j.biochi.2018.04.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 04/30/2018] [Indexed: 02/08/2023]
Abstract
Cancer is a global problem with no sign that incidences are reducing. The great costs associated with curing cancer, through developing novel treatments and applying patented therapies, is an increasing burden to developed and developing nations alike. These financial and societal problems will be alleviated by research efforts into prevention, or treatments that utilise off-patent or repurposed agents. Phytosterols are natural components of the diet found in an array of seeds, nuts and vegetables and have been added to several consumer food products for the management of cardio-vascular disease through their ability to lower LDL-cholesterol levels. In this review, we provide a connected view between the fields of structural biophysics and cellular and molecular biology to evaluate the growing evidence that phytosterols impair oncogenic pathways in a range of cancer types. The current state of understanding of how phytosterols alter the biophysical properties of plasma membrane is described, and the potential for phytosterols to be repurposed from cardio-vascular to oncology therapeutics. Through an overview of the types of biophysical and molecular biology experiments that have been performed to date, this review informs the reader of the molecular and biophysical mechanisms through which phytosterols could have anti-cancer properties via their interactions with the plasma cell membrane. We also outline emerging and under-explored areas such as computational modelling, improved biomimetic membranes and ex vivo tissue evaluation. Focus of future research in these areas should improve understanding, not just of phytosterols in cancer cell biology but also to give insights into the interaction between the plasma membrane and the genome. These fields are increasingly providing meaningful biological and clinical data but iterative experiments between molecular biology assays, biosynthetic membrane studies and computational membrane modelling improve and refine our understanding of the role of different sterol components of the plasma membrane.
Collapse
|
18
|
β-Sitosterol targets Trx/Trx1 reductase to induce apoptosis in A549 cells via ROS mediated mitochondrial dysregulation and p53 activation. Sci Rep 2018; 8:2071. [PMID: 29391428 PMCID: PMC5794769 DOI: 10.1038/s41598-018-20311-6] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 01/16/2018] [Indexed: 12/20/2022] Open
Abstract
β-Sitosterol (BS), a major bioactive constituent present in plants and vegetables has shown potent anticancer effect against many human cancer cells, but the underlying mechanism remain elusive on NSCLC cancers. We found that BS significantly inhibited the growth of A549 cells without harming normal human lung and PBMC cells. Further, BS treatment triggered apoptosis via ROS mediated mitochondrial dysregulation as evidenced by caspase-3 & 9 activation, Annexin-V/PI positive cells, PARP inactivation, loss of MMP, Bcl-2-Bax ratio alteration and cytochrome c release. Moreover, generation of ROS species and subsequent DNA stand break were found upon BS treatment which was reversed by addition of ROS scavenger (NAC). Indeed BS treatment increased p53 expression and its phosphorylation at Ser15, while silencing the p53 expression by pifithrin-α, BS induced apoptosis was reduced in A549 cells. Furthermore, BS induced apoptosis was also observed in NCI-H460 cells (p53 wild) but not in the NCI-H23 cells (p53 mutant). Down-regulation of Trx/Trx1 reductase contributed to the BS induced ROS accumulation and mitochondrial mediated apoptotic cell death in A549 and NCI-H460 cells. Taken together, our findings provide evidence for the novel anti-cancer mechanism of BS which could be developed as a promising chemotherapeutic drug against NSCLC cancers.
Collapse
|
19
|
Cuevas-Tena M, Alegría A, Lagarda MJ. Determination of Fecal Sterols Following a Diet with and without Plant Sterols. Lipids 2017; 52:871-884. [DOI: 10.1007/s11745-017-4286-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 08/10/2017] [Indexed: 10/18/2022]
|
20
|
Jaceldo-Siegl K, Lütjohann D, Sirirat R, Mashchak A, Fraser GE, Haddad E. Variations in dietary intake and plasma concentrations of plant sterols across plant-based diets among North American adults. Mol Nutr Food Res 2017; 61. [PMID: 28130879 DOI: 10.1002/mnfr.201600828] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 01/18/2017] [Accepted: 01/19/2017] [Indexed: 01/13/2023]
Abstract
SCOPE Phytosterols are bioactive compounds in plants with similar cholesterol-lowering properties as vegetarian diets. However, information on phytosterol intake and plasma plant sterols among vegetarians is sparse. METHODS AND RESULTS We examined dietary intake and plasma concentration of plant sterols and cholesterol across five dietary patterns in the Adventist Health Study-2 Calibration Sub-study (n = 861, 66% females, average age 61 years). To measure intake and plasma concentrations of these compounds, we used 24-h dietary recalls and gas-liquid chromatography-flame ionization detection, respectively. Mean (SD) total phytosterol and cholesterol intake were 363 (176) mg/day and 131 (111) mg/day; plasma β-sitosterol, campesterol, and cholesterol were 3.3 (1.7) μg/mL, 4.2 (2.3) μg/mL, and 1.9 (0.4) mg/mL, respectively. Total phytosterol intake was lowest among non-vegetarians (263 mg/day) and highest among vegans (428 mg/day) (p < 0.0001). Cholesterol intake was lowest among vegans (15.2 mg/day) and highest among non-vegetarians (124.6 mg/day) (p < 0.0001). Plasma plant sterols and cholesterol did not differ by diet. Cholesterol-adjusted plasma β-sitosterol and campesterol were significantly higher in Blacks than Whites, though no ethnic differences were observed in dietary intake of these plant sterols. CONCLUSION Dietary intake but not plasma concentration of plant sterols and cholesterol varies across distinct plant-based diets.
Collapse
Affiliation(s)
- Karen Jaceldo-Siegl
- Adventist Health Studies, School of Public Health, Loma Linda University, Loma Linda, CA, USA
| | - Dieter Lütjohann
- Institute of Clinical Chemistry and Clinical Pharmacology, University Clinics of Bonn, Bonn
| | - Rawiwan Sirirat
- Adventist Health Studies, School of Public Health, Loma Linda University, Loma Linda, CA, USA
| | - Andrew Mashchak
- Adventist Health Studies, School of Public Health, Loma Linda University, Loma Linda, CA, USA
| | - Gary E Fraser
- Adventist Health Studies, School of Public Health, Loma Linda University, Loma Linda, CA, USA
| | - Ella Haddad
- Adventist Health Studies, School of Public Health, Loma Linda University, Loma Linda, CA, USA
| |
Collapse
|
21
|
Sun J, Zhao XE, Dang J, Sun X, Zheng L, You J, Wang X. Rapid and sensitive determination of phytosterols in functional foods and medicinal herbs by using UHPLC-MS/MS with microwave-assisted derivatization combined with dual ultrasound-assisted dispersive liquid-liquid microextraction. J Sep Sci 2016; 40:725-732. [DOI: 10.1002/jssc.201600711] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 11/11/2016] [Accepted: 11/13/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Jing Sun
- Key Laboratory of Tibetan Medicine Research and Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology; Chinese Academy of Science; Xining Qinghai P.R. China
| | - Xian-En Zhao
- Key Laboratory of Tibetan Medicine Research and Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology; Chinese Academy of Science; Xining Qinghai P.R. China
- Shandong Provincial Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, College of Chemistry and Chemical Engineering; Qufu Normal University; Qufu Shandong P. R. China
| | - Jun Dang
- Key Laboratory of Tibetan Medicine Research and Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology; Chinese Academy of Science; Xining Qinghai P.R. China
| | - Xiaoyan Sun
- Shandong Provincial Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, College of Chemistry and Chemical Engineering; Qufu Normal University; Qufu Shandong P. R. China
| | - Longfang Zheng
- Shandong Provincial Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, College of Chemistry and Chemical Engineering; Qufu Normal University; Qufu Shandong P. R. China
| | - Jinmao You
- Shandong Provincial Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, College of Chemistry and Chemical Engineering; Qufu Normal University; Qufu Shandong P. R. China
| | - Xiao Wang
- Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center; Shandong Academy of Sciences; Jinan Shandong China
| |
Collapse
|
22
|
Microencapsulation using biopolymers as an alternative to produce food enhanced with phytosterols and omega-3 fatty acids: A review. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.06.003] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
23
|
Huang SS, Jian KL, Li RJ, Kong LY, Yang MH. Phytosteroids and triterpenoids with potent cytotoxicities from the leaves of Chisocheton cumingianus. RSC Adv 2016. [DOI: 10.1039/c5ra23626f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Six new phytosteroids and three new triterpenoids were isolated from the leaves of Chisocheton cumingianus, and chisopanoid E (5) displayed potent cytotoxicity towards MCF-7 mainly by inducing apoptosis.
Collapse
Affiliation(s)
- Shan-Shan Huang
- State Key Laboratory of Natural Medicines
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- People's Republic of China
| | - Kai-Li Jian
- State Key Laboratory of Natural Medicines
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- People's Republic of China
| | - Rui-Jun Li
- State Key Laboratory of Natural Medicines
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- People's Republic of China
| | - Ling-Yi Kong
- State Key Laboratory of Natural Medicines
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- People's Republic of China
| | - Ming-Hua Yang
- State Key Laboratory of Natural Medicines
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- People's Republic of China
| |
Collapse
|
24
|
Cilla A, Attanzio A, Barberá R, Tesoriere L, Livrea MA. Anti-proliferative effect of main dietary phytosterols and β-cryptoxanthin alone or combined in human colon cancer Caco-2 cells through cytosolic Ca+2 – and oxidative stress-induced apoptosis. J Funct Foods 2015. [DOI: 10.1016/j.jff.2014.12.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
|
25
|
The sterols isolated from evening primrose oil inhibit human colon adenocarcinoma cell proliferation and induce cell cycle arrest through upregulation of LXR. J Funct Foods 2015. [DOI: 10.1016/j.jff.2014.11.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
26
|
Corbo MR, Bevilacqua A, Petruzzi L, Casanova FP, Sinigaglia M. Functional Beverages: The Emerging Side of Functional Foods. Compr Rev Food Sci Food Saf 2014. [DOI: 10.1111/1541-4337.12109] [Citation(s) in RCA: 254] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Maria Rosaria Corbo
- Dept. of the Science of Agriculture; Food and Environment; Univ. of Foggia; Via Napoli 25 71122 Foggia Italy
| | - Antonio Bevilacqua
- Dept. of the Science of Agriculture; Food and Environment; Univ. of Foggia; Via Napoli 25 71122 Foggia Italy
| | - Leonardo Petruzzi
- Dept. of the Science of Agriculture; Food and Environment; Univ. of Foggia; Via Napoli 25 71122 Foggia Italy
| | - Francesco Pio Casanova
- Dept. of the Science of Agriculture; Food and Environment; Univ. of Foggia; Via Napoli 25 71122 Foggia Italy
| | - Milena Sinigaglia
- Dept. of the Science of Agriculture; Food and Environment; Univ. of Foggia; Via Napoli 25 71122 Foggia Italy
| |
Collapse
|
27
|
Lopez S, Bermudez B, Montserrat-de la Paz S, Jaramillo S, Varela LM, Ortega-Gomez A, Abia R, Muriana FJG. Membrane composition and dynamics: a target of bioactive virgin olive oil constituents. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2014; 1838:1638-56. [PMID: 24440426 DOI: 10.1016/j.bbamem.2014.01.007] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 01/03/2014] [Accepted: 01/07/2014] [Indexed: 12/26/2022]
Abstract
The endogenous synthesis of lipids, which requires suitable dietary raw materials, is critical for the formation of membrane bilayers. In eukaryotic cells, phospholipids are the predominant membrane lipids and consist of hydrophobic acyl chains attached to a hydrophilic head group. The relative balance between saturated, monounsaturated, and polyunsaturated acyl chains is required for the organization and normal function of membranes. Virgin olive oil is the richest natural dietary source of the monounsaturated lipid oleic acid and is one of the key components of the healthy Mediterranean diet. Virgin olive oil also contains a unique constellation of many other lipophilic and amphipathic constituents whose health benefits are still being discovered. The focus of this review is the latest evidence regarding the impact of oleic acid and the minor constituents of virgin olive oil on the arrangement and behavior of lipid bilayers. We highlight the relevance of these interactions to the potential use of virgin olive oil in preserving the functional properties of membranes to maintain health and in modulating membrane functions that can be altered in several pathologies. This article is part of a Special Issue entitled: Membrane Structure and Function: Relevance in the Cell's Physiology, Pathology and Therapy.
Collapse
Affiliation(s)
- Sergio Lopez
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41012 Seville, Spain
| | - Beatriz Bermudez
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41012 Seville, Spain
| | | | - Sara Jaramillo
- Laboratory of Phytochemicals and Food Quality, Instituto de la Grasa, CSIC, 41014 Seville, Spain
| | - Lourdes M Varela
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41012 Seville, Spain
| | - Almudena Ortega-Gomez
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41012 Seville, Spain
| | - Rocio Abia
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41012 Seville, Spain
| | - Francisco J G Muriana
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41012 Seville, Spain.
| |
Collapse
|
28
|
Bildziukevich U, Rárová L, Saman D, Havlíček L, Drašar P, Wimmer Z. Amides derived from heteroaromatic amines and selected steryl hemiesters. Steroids 2013; 78:1347-52. [PMID: 24145008 DOI: 10.1016/j.steroids.2013.10.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Revised: 09/06/2013] [Accepted: 10/07/2013] [Indexed: 11/24/2022]
Abstract
The current interest of the team has been focused on investigation of novel amides with potential cytotoxicity. The presented series of compounds was synthesized from selected steryl hemiesters and heteroaromatic amines. The synthetic protocol was designed in a simple and economic way, and divided into several general methodologies applicable to the compounds synthesized. The cytotoxicity was tested on cells derived from human T-lymphoblastic leukemia, breast adenocarcinoma and cervical cancer, and compared with tests on normal human fibroblasts. Most of the lanosterol-based compounds (3-5 and 7-10) showed medium to good cytotoxicity, while only two derivatives of cholesterol (18 and 19) showed medium cytotoxicity on human T-lymphoblastic leukemia cell line. The compounds 8 and 9 displayed the reasonable cytotoxicity among this series of amides, tested on the cell lines of T-lymphoblastic leukemia [14.5±0.4 μM (8) and 18.5±3.9 μM (9)], breast adenocarcinoma [19.5±2.1 μM (8) and 23.1±4.0 μM (9)] and cervical cancer [24.8±5.3 μM (8) and 29.1±4.7 μM (9)]. Only the compound 8 was adequately less active on normal human fibroblasts (40.4±11.1 μM).
Collapse
Affiliation(s)
- Uladzimir Bildziukevich
- Institute of Experimental Botany AS CR, v.v.i., Isotope Laboratory, Vídeňská 1083, 14220 Prague 4, Czech Republic; Institute of Chemical Technology, Faculty of Food and Biochemical Technology, Department of Chemistry of Natural Compounds, Technická 5, 16628 Prague 6, Czech Republic
| | | | | | | | | | | |
Collapse
|
29
|
González-Vallinas M, González-Castejón M, Rodríguez-Casado A, Ramírez de Molina A. Dietary phytochemicals in cancer prevention and therapy: a complementary approach with promising perspectives. Nutr Rev 2013; 71:585-99. [DOI: 10.1111/nure.12051] [Citation(s) in RCA: 167] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
|
30
|
Llaverias G, Escolà-Gil JC, Lerma E, Julve J, Pons C, Cabré A, Cofán M, Ros E, Sánchez-Quesada JL, Blanco-Vaca F. Phytosterols inhibit the tumor growth and lipoprotein oxidizability induced by a high-fat diet in mice with inherited breast cancer. J Nutr Biochem 2013; 24:39-48. [DOI: 10.1016/j.jnutbio.2012.01.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Revised: 01/02/2012] [Accepted: 01/17/2012] [Indexed: 12/13/2022]
|
31
|
Vida N, Svobodová H, Rárová L, Drašar P, Saman D, Cvačka J, Wimmer Z. Polyamine conjugates of stigmasterol. Steroids 2012; 77:1212-8. [PMID: 22850319 DOI: 10.1016/j.steroids.2012.07.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Revised: 06/19/2012] [Accepted: 07/13/2012] [Indexed: 10/28/2022]
Abstract
Three new polyamine conjugates with stigmasterol [(3β,22E)-stigmasta-5,22-dien-3-ol] were synthesized and subjected to basic antimicrobial and cytotoxic tests. The conjugate derived from spermine, (3β,22E)-stigmasta-5,22-dien-3-yl 4(12-amino-4,9-diaza-dodecylamino)-4-oxobutanoate (5c), displayed considerable antimicrobial activity on Staphylococcus aureus at low concentration (50 μg mL(-1)). The cytotoxic activity was tested on cells of human T-lymfoblastic leukemia (IC(50)=35.8 ± 10.3 μM (5c) and IC(50)=35.9 ± 5.7 μM (5b)) and normal human fibroblasts (IC(50)=38.0 ± 2.8 μM (5c) and IC(50)=45.5 ± 1.9 μM (5b)). Conjugate 5a displayed no activity in both tests.
Collapse
Affiliation(s)
- Norbert Vida
- Institute of Chemical Technology, Faculty of Food and Biochemical Technology, Department of Chemistry of Natural Compounds, Technická 5, 16628 Prague 6, Czech Republic
| | | | | | | | | | | | | |
Collapse
|
32
|
7α-Hydroxy-β-Sitosterol from Chisocheton tomentosus Induces Apoptosis via Dysregulation of Cellular Bax/Bcl-2 Ratio and Cell Cycle Arrest by Downregulating ERK1/2 Activation. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:765316. [PMID: 22997533 PMCID: PMC3446807 DOI: 10.1155/2012/765316] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Revised: 07/26/2012] [Accepted: 07/26/2012] [Indexed: 11/18/2022]
Abstract
In continuation of our interest towards the elucidation of apoptotic pathways of cytotoxic phytocompounds, we have embarked upon a study on the anticancer effects of 7α-hydroxy-β-sitosterol (CT1), a rare natural phytosterol oxide isolated from Chisocheton tomentosus. CT1 was found to be cytotoxic on three different human tumor cell lines with minimal effects on normal cell controls, where cell viability levels were maintained ≥80% upon treatment. Our results showed that cell death in MCF-7 breast tumor cells was achieved through the induction of apoptosis via downregulation of the ERK1/2 signaling pathway. CT1 was also found to increase proapoptotic Bax protein levels, while decreasing anti-apoptotic Bcl-2 protein levels, suggesting the involvement of the intrinsic pathway. Reduced levels of initiator procaspase-9 and executioner procaspase-3 were also observed following CT1 exposure, confirming the involvement of cytochrome c-mediated apoptosis via the mitochondrial pathway. These results demonstrated the cytotoxic and apoptotic ability of 7α-hydroxy-β-sitosterol and suggest its potential anti-cancer use particularly on breast adenocarcinoma cells.
Collapse
|
33
|
Lupeol, A Bioactive Triterpene, Prevents Tumor Formation During 7,12-Dimethylbenz(a)anthracene Induced Oral Carcinogenesis. Pathol Oncol Res 2012; 18:1029-37. [DOI: 10.1007/s12253-012-9541-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Accepted: 05/17/2012] [Indexed: 12/22/2022]
|
34
|
Vejux A, Montange T, Martine L, Zarrouk A, Riedinger JM, Lizard G. Absence of oxysterol-like side effects in human monocytic cells treated with phytosterols and oxyphytosterols. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:4060-4066. [PMID: 22490085 DOI: 10.1021/jf300487r] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Oxysterols, found in some commonly consumed foods, can induce a wide range of cytotoxic effects, which have been extensively studied. On the other hand, the side effects of phytosterols and oxyphytosterols are less well-known. Over the past few years, different types of foods have been enriched with phytosterols on the basis of the properties of these compounds that reduce circulating cholesterol levels in certain experimental conditions. It is therefore important to gain better knowledge of the risks and benefits of this type of diet. In this study, conducted in human monocytic U937 cells, the ability of phytosterols (sitosterol, campesterol) and oxyphytosterols (7β-hydroxysitosterol, 7-ketositosterol) to induce cell death, polar lipid accumulation, and pro-inflammatory cytokine (MCP-1; IL-8) secretion was determined and compared to that of oxysterols (7-ketocholesterol, 7β-hydroxycholesterol). Phytosterols and oxyphytosterols had no significant effects on the parameters studied; only 7β-hydroxysitosterol slightly increased cell death, whereas at the concentration used (20 μg/mL), strong cytotoxic effects were observed with the oxysterols. With sitosterol, campesterol, and 7-ketositosterol, IL-8 secretion was decreased, and with campesterol the intracellular polar lipid level was reduced. The data show that phytosterols and oxyphytosterols have no oxysterol-like side effects, and they rather argue in favor of phytosterols' beneficial effects.
Collapse
Affiliation(s)
- Anne Vejux
- Equipe Biochimie du peroxysome, inflammation et métabolisme lipidique (EA7270), Université de Bourgogne-INSERM, Dijon, France.
| | | | | | | | | | | |
Collapse
|
35
|
An ultra performance liquid chromatographic method for determining phytosterol uptake by Caco-2 cells. Anal Biochem 2011; 421:86-91. [PMID: 22119071 DOI: 10.1016/j.ab.2011.10.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Revised: 10/21/2011] [Accepted: 10/31/2011] [Indexed: 12/17/2022]
Abstract
A simple method for the determination of cellular uptake of phytosterols by Caco-2 cells has been developed by ultra performance liquid chromatography with ultraviolet detection (UPLC-UV). UPLC-UV was established using an ODS column, acetonitrile/H(2)O (9:1, v/v) as a mobile phase, and a detection wavelength at 210 nm. As analytes, β-sitosterol, campesterol, stigmasterol, and brassicasterol were selected based on the abundance in foods and the similarity of their structures. A linear relation was observed between the peak area and the amount of sterol injected from 50 to 2000 pmol (r>0.999) with a relative standard deviation (RSD) of less than 2.5% (n=6). This method was applied to the determination of cellular uptake of phytosterols by Caco-2 cells. Recovery tests showed that phytosterols were extracted from the cell lysates by chloroform and determined by UPLC-UV with a recovery rate of more than 80.2% and an RSD of less than 11.3% (n=3). When Caco-2 cells were incubated with phytosterols at 37°C, their uptake was increased with time in a concentration-dependent manner. This method will be useful for the simultaneous determination of cellular phytosterols in an in vitro intestine model.
Collapse
|
36
|
Abstract
Cannabinoids, their receptors and their metabolizing enzymes are emerging as a new regulatory system, which is involved in multiple physiological functions. Normal prostate tissue expresses several constituents of the endocannabinoid system including the CB(1) receptor, receptors belonging to the transient receptor potential family and fatty acid amide hydrolase, a hydrolyzing enzyme, all of which have been localized in the glandular epithelia. Accumulating evidence indicate that the endocannabinoid system is dysregulated in prostate cancer, suggesting that it has a role in prostate homeostasis. Overexpression of several components of the endocannabinoid system correlate with prostate cancer grade and progression, potentially providing a new therapeutic target for prostate cancer. Moreover, several cannabinoids exert antitumoral properties against prostate cancer, reducing xenograft prostate tumor growth, prostate cancer cell proliferation and cell migration. Although the therapeutic potential of cannabinoids against prostate cancer is very promising, future research using animal models is needed to evaluate the influence of systemic networks in their antitumoral action.
Collapse
Affiliation(s)
- Inés Díaz-Laviada
- Department of Biochemistry and Molecular Biology, School of Medicine, University of Alcalá, Alcalá de Henares, 28871 Madrid, Spain.
| |
Collapse
|
37
|
Current and new insights on phytosterol oxides in plant sterol-enriched food. Chem Phys Lipids 2011; 164:607-24. [PMID: 21699886 DOI: 10.1016/j.chemphyslip.2011.06.005] [Citation(s) in RCA: 147] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 06/05/2011] [Accepted: 06/06/2011] [Indexed: 02/07/2023]
Abstract
Over the past 15 years, plant sterol-enriched foods have faced a great increase in the market, due to the asserted cholesterol-lowering effect of plant sterols. However, owing to their chemical structures, plant sterols can oxidize and produce a wide variety of oxidation products with controversial biological effects. Although oxyphytosterols can derive from dietary sources and endogenous formation, their single contribution should be better defined. The following review provides an overall and critical picture on the current knowledge and future perspectives of plant sterols-enriched food, particularly focused on occurrence of plant sterol oxidation products and their biological effects. The final objective of this overview is to evince the different aspects of plant sterols-enriched food that require further research, for a better understanding of the influence of plant sterols and their oxides on consumers' health.
Collapse
|
38
|
|
39
|
Bełtowski J. Inhibition of cell proliferation: a new role of liver X receptors. ACTA ACUST UNITED AC 2011. [DOI: 10.2217/clp.11.3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|