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Thilakarathna WPDW, Rupasinghe HPV. Proanthocyanidins-Based Synbiotics as a Novel Strategy for Nonalcoholic Fatty Liver Disease (NAFLD) Risk Reduction. Molecules 2024; 29:709. [PMID: 38338453 PMCID: PMC10856248 DOI: 10.3390/molecules29030709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/29/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD), the most common liver disease worldwide, is a spectrum of liver abnormalities ranging from steatosis to nonalcoholic steatohepatitis (NASH) characterized by excessive lipid accumulation. The prevalence of NAFLD is predicted to increase rapidly, demanding novel approaches to reduce the global NAFLD burden. Flavonoids, the most abundant dietary polyphenols, can reduce the risk of NAFLD. The majority of dietary flavonoids are proanthocyanidins (PACs), which are oligomers and polymers of the flavonoid sub-group flavan-3-ols. The efficacy of PAC in reducing the NAFLD risk can be significantly hindered by low bioavailability. The development of synbiotics by combining PAC with probiotics may increase effectiveness against NAFLD by biotransforming PAC into bioavailable metabolites. PAC and probiotic bacteria are capable of mitigating steatosis primarily through suppressing de novo lipogenesis and promoting fatty acid β-oxidation. PAC and probiotic bacteria can reduce the progression of steatosis to NASH mainly through ameliorating hepatic damage and inflammation induced by hepatic oxidative stress, endoplasmic reticulum stress, and gut microbiota dysbiosis. Synbiotics of PAC are superior in reducing the risk of NAFLD compared to independent administration of PAC and probiotics. The development of PAC-based synbiotics can be a novel strategy to mitigate the increasing incidence of NAFLD.
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Affiliation(s)
- Wasitha P. D. W. Thilakarathna
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada;
| | - H. P. Vasantha Rupasinghe
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada;
- Department of Pathology, Faculty of Medicine, Dalhousie University, Halifax, NS B3H 4H7, Canada
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Malta FAPS, Gonçalves DC. A triple-masked, two-center, randomized parallel clinical trial to assess the superiority of eight weeks of grape seed flour supplementation against placebo for weight loss attenuation during perioperative period in patients with cachexia associated with colorectal cancer: a study protocol. Front Endocrinol (Lausanne) 2024; 14:1146479. [PMID: 38313843 PMCID: PMC10834683 DOI: 10.3389/fendo.2023.1146479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 12/07/2023] [Indexed: 02/06/2024] Open
Abstract
Background Progressive, involuntary weight and lean mass loss in cancer are linked to cachexia, a prevalent syndrome in gastrointestinal malignancies that impacts quality of life, survival and postoperative complications. Its pathophysiology is complex and believed to involve proinflammatory cytokine-mediated systemic inflammation resulting from tumor-host interaction, oxidative stress, abnormal metabolism and neuroendocrine changes. Therapeutic options for cachexia remain extremely limited, highlighting the need for clinical research targeting new interventions. Thus, this study primarily assesses the effects of grape-seed flour (GSF), rich in polyphenols and fibers, for attenuating perioperative weight loss in colorectal cancer. Methods This is a dual-center, triple-masked, placebo-controlled, parallel-group, phase II, randomized clinical trial designed to investigate GSF supplementation in subjects with pre- or cachexia associated with colorectal cancer during the perioperative period. Eighty-two participants will receive 8g of GSF or cornstarch (control) for 8 weeks. Assessments are scheduled around surgery: pre-intervention (4 weeks prior), day before, first week after, and post-intervention (4 weeks later). The primary endpoint is the difference in body weight mean change from baseline to week 8. The secondary endpoints describe the harms from 8-week supplementation and assess its superiority to improve body composition, post-surgical complications, quality of life, anorexia, fatigue, gastrointestinal symptoms, and handgrip strength. The study will also explore its effects on gut bacteria activity and composition, systemic inflammation, and muscle metabolism. Discussion The current trial addresses a gap within the field of cancer cachexia, specifically focusing on the potential role of a nutritional intervention during the acute treatment phase. GSF is expected to modulate inflammation and oxidative stress, both involved in muscle and intestinal dysfunction. The research findings hold substantial implications for enhancing the understanding about cachexia pathophysiology and may offer a new clinical approach to managing cachexia at a critical point in treatment, directly impacting clinical outcomes. Trial registration The Brazilian Registry of Clinical Trials (ReBEC), RBR-5p6nv8b; UTN: U1111-1285-9594. Prospectively registered on February 07, 2023.
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Roca IC, Cojocaru E, Rusu CD, Trandafir LM, Săveanu CI, Lupu VV, Butnariu LI, Ţarcă V, Moscalu M, Bernic J, Lupu A, Ţarcă E. The Role of Natural Extracts in the Management of Infantile Hemangiomas and Vascular Tumors. Pediatric Health Med Ther 2024; 15:1-16. [PMID: 38213420 PMCID: PMC10778175 DOI: 10.2147/phmt.s439537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 12/28/2023] [Indexed: 01/13/2024] Open
Abstract
Hemangiomas are vascular tumors resulting from the proliferation of endothelial-like cells; they are the most common childhood tumors, affecting approximately 5-10% of newborns and infants. Besides hemangiomas, which are definitely benign tumors despite their overgrowth potential, there are other vascular tumors like hemangioendotheliomas, which may display intermediate characteristics between benign hemangiomas and highly malignant angiosarcomas. Standard therapy may be constricted by serious adverse effects, high cost, or traumatic influence. Diet is a major resource for health preservation, disease prevention, and treatment. The therapeutic property of edible berries, marine products, or medicinal plants have long been known and used in traditional medicine; a plant-based nutrition can prevent the development and progression of diseases associated with extensive neo-vascularization. The purpose of our review is to highlight those natural treatments that hemangioma and vascular tumor patients can receive in the future, both for their benefit and that of their families. We performed the review according to the Preferred Reporting Items for Systematic Reviews and Metanalysis Statement. We used the Web of Science, PubMed, and EMBASE engines for the study, and searched for the association of hemangioma with naturopathic treatment/plant extract/plants in published articles. We found that natural extracts from plants and fruits are cost-effective and safe treatments for hemangiomas and vascular tumors, as well as for other forms of cancer. In any case, more in vitro and in vivo studies are needed to confirm the proposed signaling pathways in tumors and validate the improvement parameters after natural products administration. The era of molecularly targeted therapy and personalized medicine is approaching and naturally occurring substances are very useful tools for tumor treatment and prevention. Plant extract substances have strong specificity and pertinence, are non- toxic and have few side effects, and may become an emerging cancer treatment.
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Affiliation(s)
- Iulia Cristina Roca
- Department of Surgery II, “Grigore T. Popa” University of Medicine and Pharmacy, Iaşi, 700115, Romania
| | - Elena Cojocaru
- Department of Morphofunctional Sciences I – Pathology, “Grigore T. Popa” University of Medicine and Pharmacy, Iaşi, 700115, Romania
| | - Carmen Daniela Rusu
- Department of Surgery II, “Grigore T. Popa” University of Medicine and Pharmacy, Iaşi, 700115, Romania
| | - Laura Mihaela Trandafir
- Department of Mother and Child Medicine–Pediatrics, “Grigore T. Popa” University of Medicine and Pharmacy, Iaşi, 700115, Romania
| | - Cătălina Iulia Săveanu
- Surgical Department, Discipline of Preventive Dentistry, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, Iasi, 700115, Romania
| | - Vasile Valeriu Lupu
- Department of Mother and Child Medicine–Pediatrics, “Grigore T. Popa” University of Medicine and Pharmacy, Iaşi, 700115, Romania
| | - Lăcrămioara Ionela Butnariu
- Department of Medical Genetics, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, Iași, 700115, Romania
| | - Viorel Ţarcă
- Department of Preventive Medicine and Interdisciplinarity, “Grigore T. Popa” University of Medicine and Pharmacy, Iași, 700115, Romania
| | - Mihaela Moscalu
- Department of Preventive Medicine and Interdisciplinarity, “Grigore T. Popa” University of Medicine and Pharmacy, Iași, 700115, Romania
| | - Jana Bernic
- Discipline of Pediatric Surgery, “Nicolae Testemițanu” State University of Medicine and Pharmacy, Chisinau, Moldova
| | - Ancuța Lupu
- Department of Mother and Child Medicine–Pediatrics, “Grigore T. Popa” University of Medicine and Pharmacy, Iaşi, 700115, Romania
| | - Elena Ţarcă
- Department of Surgery II, “Grigore T. Popa” University of Medicine and Pharmacy, Iaşi, 700115, Romania
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Hu L, An E, Zhu Z, Cai Y, Ye X, Zhou H, Ge H. Grape seed-derived procyanidins decreases neuropathic pain and nerve regeneration by suppression of toll-like receptor 4-myeloid differentiation factor-88 signaling. Mol Pain 2024; 20:17448069241256466. [PMID: 38716504 PMCID: PMC11110500 DOI: 10.1177/17448069241256466] [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: 03/07/2024] [Revised: 04/15/2024] [Accepted: 04/19/2024] [Indexed: 05/22/2024] Open
Abstract
Background: Recent studies have shown that peripheral nerve regeneration process is closely related to neuropathic pain. Toll-like receptor 4 (TLR4) signaling was involved in different types of pain and nerve regeneration. TLR4 induced the recruitment of myeloid differentiation factor-88 adaptor protein (MyD88) and NF-κB-depended transcriptional process in sensory neurons and glial cells, which produced multiple cytokines and promoted the induction and persistence of pain. Our study aimed to investigate procyanidins's effect on pain and nerve regeneration via TLR4-Myd88 signaling. Methods: Spinal nerve ligation (SNL) model was established to measure the analgesic effect of procyanidins. Anatomical measurement of peripheral nerve regeneration was measured by microscopy and growth associated protein 43 (GAP43) staining. Western blotting and/or immunofluorescent staining were utilized to detect TLR4, myeloid differentiation factor-88 adaptor protein (MyD88), ionized calcium-binding adapter molecule 1 (IBA1) and nuclear factor kappa-B-p65 (NF-κB-p65) expression, as well as the activation of astrocyte and microglia. The antagonist of TLR4 (LPS-RS-Ultra, LRU) were intrathecally administrated to assess the behavioral effects of blocking TLR4 signaling on pain and nerve regeneration. Result: Procyanidins reduced mechanical allodynia, thermal hyperalgesia and significantly suppressed the number of nerve fibers regenerated and the degree of myelination in SNL model. Compared with sham group, TLR4, MyD88, IBA1 and phosphorylation of NF-κB-p65 were upregulated in SNL rats which were reversed by procyanidins administration. Additionally, procyanidins also suppressed activation of spinal astrocytes and glial cells. Conclusion: Suppression of TLR4-MyD88 signaling contributes to the alleviation of neuropathic pain and reduction of nerve regeneration by procyanidins.
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Affiliation(s)
- Li Hu
- Department of Anesthesiology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
- Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China
| | - Erdan An
- Department of Anesthesiology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
- Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China
| | - ZhiPeng Zhu
- Department of Anesthesiology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
- Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China
| | - Ying Cai
- Department of Anesthesiology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
- Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China
| | - Xiaoyan Ye
- Jiaxing University Medical College, Jiaxing, China
| | - Hongmei Zhou
- Department of Anesthesiology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
- Key Laboratory of Basic Research and Clinical Transformation of Perioperative Precision Anesthesia, Jiaxing, China
| | - Hejia Ge
- Department of Pediatrics, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
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Witte K, Wolk K, Witte-Händel E, Krause T, Kokolakis G, Sabat R. Targeting Metabolic Syndrome in Hidradenitis Suppurativa by Phytochemicals as a Potential Complementary Therapeutic Strategy. Nutrients 2023; 15:3797. [PMID: 37686829 PMCID: PMC10490062 DOI: 10.3390/nu15173797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/09/2023] [Accepted: 08/21/2023] [Indexed: 09/10/2023] Open
Abstract
Hidradenitis suppurativa (HS) is a chronic inflammatory disease characterized by the appearance of painful inflamed nodules, abscesses, and pus-draining sinus tracts in the intertriginous skin of the groins, buttocks, and perianal and axillary regions. Despite its high prevalence of ~0.4-1%, therapeutic options for HS are still limited. Over the past 10 years, it has become clear that HS is a systemic disease, associated with various comorbidities, including metabolic syndrome (MetS) and its sequelae. Accordingly, the life expectancy of HS patients is significantly reduced. MetS, in particular, obesity, can support sustained inflammation and thereby exacerbate skin manifestations and the chronification of HS. However, MetS actually lacks necessary attention in HS therapy, underlining the high medical need for novel therapeutic options. This review directs attention towards the relevance of MetS in HS and evaluates the potential of phytomedical drug candidates to alleviate its components. It starts by describing key facts about HS, the specifics of metabolic alterations in HS patients, and mechanisms by which obesity may exacerbate HS skin alterations. Then, the results from the preclinical studies with phytochemicals on MetS parameters are evaluated and the outcomes of respective randomized controlled clinical trials in healthy people and patients without HS are presented.
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Affiliation(s)
- Katrin Witte
- Psoriasis Research and Treatment Center, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Interdisciplinary Group of Molecular Immunopathology, Dermatology/Medical Immunology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Inflammation and Regeneration of Skin, BIH Center for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 13353 Berlin, Germany
| | - Kerstin Wolk
- Psoriasis Research and Treatment Center, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Interdisciplinary Group of Molecular Immunopathology, Dermatology/Medical Immunology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Inflammation and Regeneration of Skin, BIH Center for Regenerative Therapies, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 13353 Berlin, Germany
| | - Ellen Witte-Händel
- Psoriasis Research and Treatment Center, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Interdisciplinary Group of Molecular Immunopathology, Dermatology/Medical Immunology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Torben Krause
- Psoriasis Research and Treatment Center, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Georgios Kokolakis
- Psoriasis Research and Treatment Center, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Robert Sabat
- Psoriasis Research and Treatment Center, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
- Interdisciplinary Group of Molecular Immunopathology, Dermatology/Medical Immunology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
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Chen HF, Wang WJ, Chen CY, Chang WC, Hsueh PR, Peng SL, Wu CS, Chen Y, Huang HY, Shen WJ, Wang SC, Hung MC. The natural tannins oligomeric proanthocyanidins and punicalagin are potent inhibitors of infection by SARS-CoV-2. eLife 2023; 12:e84899. [PMID: 37642993 PMCID: PMC10465125 DOI: 10.7554/elife.84899] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 07/17/2023] [Indexed: 08/31/2023] Open
Abstract
The Coronavirus Disease 2019 (COVID-19) pandemic continues to infect people worldwide. While the vaccinated population has been increasing, the rising breakthrough infection persists in the vaccinated population. For living with the virus, the dietary guidelines to prevent virus infection are worthy of and timely to develop further. Tannic acid has been demonstrated to be an effective inhibitor of coronavirus and is under clinical trial. Here we found that two other members of the tannins family, oligomeric proanthocyanidins (OPCs) and punicalagin, are also potent inhibitors against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection with different mechanisms. OPCs and punicalagin showed inhibitory activity against omicron variants of SARS-CoV-2 infection. The water extractant of the grape seed was rich in OPCs and also exhibited the strongest inhibitory activities for viral entry of wild-type and other variants in vitro. Moreover, we evaluated the inhibitory activity of grape seed extractants (GSE) supplementation against SARS-CoV-2 viral entry in vivo and observed that serum samples from the healthy human subjects had suppressive activity against different variants of SARS-CoV-2 Vpp infection after taking GSE capsules. Our results suggest that natural tannins acted as potent inhibitors against SARS-CoV-2 infection, and GSE supplementation could serve as healthy food for infection prevention.
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Affiliation(s)
- Hsiao-Fan Chen
- Graduate Institute of Biomedical Sciences, China Medical UniversityTaichungTaiwan
- Research Center for Cancer Biology, China Medical UniversityTaichungTaiwan
| | - Wei-Jan Wang
- Research Center for Cancer Biology, China Medical UniversityTaichungTaiwan
- Department of Biological Science and Technology, College of Life Sciences, China Medical UniversityTaichungTaiwan
| | - Chung-Yu Chen
- Research Center for Cancer Biology, China Medical UniversityTaichungTaiwan
| | - Wei-Chao Chang
- Center for Molecular Medicine, China Medical University Hospital, China Medical UniversityTaichungTaiwan
| | - Po-Ren Hsueh
- Departments of Laboratory Medicine and Internal Medicine, China Medical University Hospital, School of Medicine, China Medical UniversityTaichungTaiwan
| | - Shin-Lei Peng
- Department of Biomedical Imaging and Radiological Science, China Medical UniversityTaichungTaiwan
- Neuroscience and Brain Disease Center, China Medical UniversityTaichungTaiwan
| | - Chen-Shiou Wu
- Graduate Institute of Biomedical Sciences, China Medical UniversityTaichungTaiwan
- Research Center for Cancer Biology, China Medical UniversityTaichungTaiwan
| | - Yeh Chen
- Department of Biological Science and Technology, College of Life Sciences, China Medical UniversityTaichungTaiwan
- Institute of New Drug Development, China Medical UniversityTaichungTaiwan
| | - Hsin-Yu Huang
- Graduate Institute of Biomedical Sciences, China Medical UniversityTaichungTaiwan
| | - Wan-Jou Shen
- Graduate Institute of Biomedical Sciences, China Medical UniversityTaichungTaiwan
| | - Shao-Chun Wang
- Graduate Institute of Biomedical Sciences, China Medical UniversityTaichungTaiwan
- Research Center for Cancer Biology, China Medical UniversityTaichungTaiwan
- Center for Molecular Medicine, China Medical University Hospital, China Medical UniversityTaichungTaiwan
- Cancer Biology and Precision Therapeutics Center, China Medical UniversityTaichungTaiwan
- Department of Biotechnology, Asia UniversityTaichungTaiwan
| | - Mien-Chie Hung
- Graduate Institute of Biomedical Sciences, China Medical UniversityTaichungTaiwan
- Research Center for Cancer Biology, China Medical UniversityTaichungTaiwan
- Center for Molecular Medicine, China Medical University Hospital, China Medical UniversityTaichungTaiwan
- Cancer Biology and Precision Therapeutics Center, China Medical UniversityTaichungTaiwan
- Department of Biotechnology, Asia UniversityTaichungTaiwan
- Institute of Biochemistry and Molecular Biology, China Medical UniversityTaichungTaiwan
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Xie Y, Deng Q, Guo M, Li X, Xian D, Zhong J. Proanthocyanidins: A novel approach to Henoch‑Schonlein purpura through balancing immunity and arresting oxidative stress via TLR4/MyD88/NF‑κB signaling pathway (Review). Exp Ther Med 2023; 25:300. [PMID: 37229322 PMCID: PMC10203752 DOI: 10.3892/etm.2023.11999] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 04/04/2023] [Indexed: 05/27/2023] Open
Abstract
Henoch-Schonlein purpura (HSP), a recurrent and immunoglobulin (Ig)A-mediated vasculitis, presents not only as skin lesions but also as systemic involvement that can be life-threatening. Although the etiology of HSP remains unknown, immune imbalance and oxidative stress (OS) are primary contributors to its pathogenesis, alongside the abnormal activation of Toll-like receptor (TLR)/myeloid differentiation primary response gene 88 (MyD88)/nuclear factor-κB (NF-κB) pathway. TLRs, especially TLR4, stimulate downstream signaling molecules such as NF-κB and proinflammatory cytokines, which are released when TLRs combine with the key adapter molecule MyD88. This leads to the activation of T helper (Th) cell 2/Th17 and overproduction of reactive oxygen species (ROS). The function of regulatory T (Treg) cells is suppressed in the process. Th17/Treg imbalance then produces various inflammatory cytokines to promote proliferation and differentiation of B cells and the secretion of antibodies. IgA is secreted, and it binds to vascular endothelial surface receptors where the complex induces injury of the vascular endothelial cells. Additionally, excessive ROS creates OS that leads to an inflammatory response and vascular cell apoptosis or necrosis, thereby contributing to vascular endothelial damage and HSP occurrence. Proanthocyanidins are active compounds naturally enriched in fruits, vegetables and plants. Proanthocyanidins have diverse properties, including anti-inflammatory, antioxidant, antibacterial, immunoregulatory, anticarcinogenic and vascular protective effects. Proanthocyanidins are used in the management of various diseases. Proanthocyanidins regulate T cells, equilibrate immunity and arrest OS by inhibiting the TLR4/MyD88/NF-κB signaling pathway. Considering the pathogenesis of HSP and the properties of proanthocyanidins, the present study hypothesized that these compounds may potentially lead to HSP recovery through modulating the immune equilibrium and preventing OS by inhibiting the TLR4/MyD88/NF-κB pathway. To the best of our knowledge, however, little is known about the positive effects of proanthocyanidins against HSP. The present review summarizes the potential of proanthocyanidins to treat HSP.
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Affiliation(s)
- Yuxin Xie
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Qiyan Deng
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Menglu Guo
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Xiaolong Li
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Deihai Xian
- Department of Neurobiology, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Jianqiao Zhong
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
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Li B, Cheng J, Cheng G, Zhu H, Liu B, Yang Y, Dai Q, Li W, Bao W, Rong S. The effect of grape seed procyanidins extract on cognitive function in elderly people with mild cognitive impairment: A randomized, double-blind, placebo-controlled clinical trial. Heliyon 2023; 9:e16994. [PMID: 37389051 PMCID: PMC10300324 DOI: 10.1016/j.heliyon.2023.e16994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 05/12/2023] [Accepted: 06/02/2023] [Indexed: 07/01/2023] Open
Abstract
Background Procyanidins have antioxidative properties that may protect against age-related brain oxidative stress. Previous studies indicated that procyanidin-rich foods could improve cognitive function and prevent neurodegenerative diseases. This study hypothesized that grape seed procyanidins extract (GSPE) would have a favorable effect on cognitive function in elderly people with mild cognitive impairment (MCI). Methods A community-based, randomized, double-blind, placebo-controlled trial was conducted. Participants aged 60 years or older with MCI were randomly assigned into the GSPE group (n = 35, 320 mg/d) or placebo group (n = 36), and received capsules for 6 months. Cognitive function was assessed using the Montreal Cognitive Assessment Scale (MoCA). The change in MoCA scores between groups were tested by the time ✕ treatment interaction in mixed-design ANOVA. Results After 6 months of intervention, the MoCA score was higher than the baseline both in the intervention group and placebo control group, while the there was no significant difference for mean change in MoCA score from baseline between the intervention group and the placebo group (2.35 ± 3.20 vs. 1.28 ± 2.93, P = 0.192). Conclusions Present study showed that 6-month supplementation with GSPE did not significantly improve cognitive function in subjects with MCI. Further investigations regarding the longer-term intervention effect of procyanidins extract on mild or moderate cognitive disorders are needed.
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Affiliation(s)
- Benchao Li
- Department of Nutrition, Hygiene and Toxicology, Academy of Nutrition and Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan, 430065, China
| | - Jing Cheng
- Department of Nutrition, Hygiene and Toxicology, Academy of Nutrition and Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan, 430065, China
| | - Guangwen Cheng
- Department of Nutrition, Hygiene and Toxicology, Academy of Nutrition and Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan, 430065, China
| | - Hailin Zhu
- Public Health Service Center of Wuhan East Lake High-Tech Development Zone, Wuhan, 430000, China
| | - Buyun Liu
- Department of Epidemiology, University of Science and Technology of China, Hefei, 230026, China
| | - Yuhuan Yang
- Department of Nutrition, Hygiene and Toxicology, Academy of Nutrition and Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan, 430065, China
| | - Qiong Dai
- Department of Public Health, Research Institute of Ai Kang Hospital, Huangshi, 435000, China
| | - Wenfang Li
- Department of Nutrition, Hygiene and Toxicology, Academy of Nutrition and Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan, 430065, China
| | - Wei Bao
- Department of Epidemiology, University of Science and Technology of China, Hefei, 230026, China
| | - Shuang Rong
- Department of Nutrition, Hygiene and Toxicology, Academy of Nutrition and Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan, 430065, China
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Darwish AG, Moniruzzaman M, Tsolova V, El-Sharkawy I. Integrating Metabolomics and Gene Expression Underlying Potential Biomarkers Compounds Associated with Antioxidant Activity in Southern Grape Seeds. Metabolites 2023; 13:metabo13020210. [PMID: 36837828 PMCID: PMC9963462 DOI: 10.3390/metabo13020210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 02/01/2023] Open
Abstract
Different southern grape (Muscadine) genotypes (Muscadinia rotundifolia Michx.) were evaluated for their contents of metabolites in ripe berries. The metabolome study identified 331 metabolites in ripening skin and seed tissues. The major chemical groups were organic acids, fatty acyls, polyketides, and organic heterocycle compounds. The metabolic pathways of the identified metabolite were mainly arginine biosynthesis, D-glutamine, D-glutamate metabolism, alanine, aspartate metabolism, aminoacyl-tRNA biosynthesis, and citrate cycle. Principal component analysis indicated that catechin, gallic acid, and epicatechin-3-gallate were the main metabolites existing in muscadine seed extracts. However, citramalic and malic acids were the main metabolites contributing to muscadine skin extracts. Partial least-squares discriminant analysis (VIP > 1) described 25 key compounds indicating the metabolome in muscadine tissues (skin and seed). Correlation analysis among the 25 compounds and oxidation inhibition activities identified five biomarker compounds that were associated with antioxidant activity. Catechin, gallic acid, epicatechin-3-gallate, fertaric acid, and procyanidin B1 were highly associated with DPPH, FRAP, CUPRAC, and ABTS. The five biomarker compounds were significantly accumulated in the seed relative to the skin tissues. An evaluation of 15 antioxidant-related genes represented by the 3-dehydroquinate dehydratase (DHD), shikimate kinase (SK), chalcone synthase (CHS), anthocyanidin reductase (ANR), laccase (LAC), phenylalanine ammonia-lyase (PAL), dihydroflavonol 4-reductase (DFR), 3-dehydroquinate synthase (DHQS), chorismate mutase (CM), flavanone-3-hydroxylase (F3H), cinnamoyl-CoA reductase (CCR), cinnamyl alcohol dehydrogenase (CAD), leucoanthocyanidin reductase (LAR), gallate 1-β-glucosyltransferase (UGT), and anthocyanidin 3-O-glucosyltransferase (UFGT) encode critical enzymes related to polyphenolics pathway throughout four developmental stages (fruit-set FS, véraison V, ripe-skin R, and ripe-seed; S) in the C5 genotype demonstrated the dramatic accumulation of all transcripts in seed tissue or a developmental stage-dependent manner. Our findings suggested that muscadine grape seeds contain essential metabolites that could attract the attention of those interested in the pharmaceutical sector and the plant breeders to develop new varieties with high nutraceutical value.
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Affiliation(s)
- Ahmed G. Darwish
- Center for Viticulture and Small Fruit Research, College of Agriculture and Food Sciences, Florida A&M University, Tallahassee, FL 32308, USA
- Department of Biochemistry, Faculty of Agriculture, Minia University, Minia 61519, Egypt
| | - Md Moniruzzaman
- Center for Viticulture and Small Fruit Research, College of Agriculture and Food Sciences, Florida A&M University, Tallahassee, FL 32308, USA
| | - Violeta Tsolova
- Center for Viticulture and Small Fruit Research, College of Agriculture and Food Sciences, Florida A&M University, Tallahassee, FL 32308, USA
| | - Islam El-Sharkawy
- Center for Viticulture and Small Fruit Research, College of Agriculture and Food Sciences, Florida A&M University, Tallahassee, FL 32308, USA
- Correspondence: ; Tel.: +1-850-599-8685
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10
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Selected Seeds as Sources of Bioactive Compounds with Diverse Biological Activities. Nutrients 2022; 15:nu15010187. [PMID: 36615843 PMCID: PMC9823554 DOI: 10.3390/nu15010187] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/27/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
Seeds contain a variety of phytochemicals that exhibit a wide range of biological activities. Plant-derived compounds are often investigated for their antioxidant, anti-inflammatory, immunomodulatory, hypoglycemic, anti-hypercholesterolemic, anti-hypertensive, anti-platelet, anti-apoptotic, anti-nociceptive, antibacterial, antiviral, anticancer, hepatoprotective, or neuroprotective properties. In this review, we have described the chemical content and biological activity of seeds from eight selected plant species-blackberry (Rubus fruticosus L.), black raspberry (Rubus coreanus Miq.), grape (Vitis vinifera L.), Moringa oleifera Lam., sea buckthorn (Hippophae rhamnoides L.), Gac (Momordica cochinchinensis Sprenger), hemp (Cannabis sativa L.), and sacha inchi (Plukenetia volubilis L). This review is based on studies identified in electronic databases, including PubMed, ScienceDirect, and SCOPUS. Numerous preclinical, and some clinical studies have found that extracts, fractions, oil, flour, proteins, polysaccharides, or purified chemical compounds isolated from the seeds of these plants display promising, health-promoting effects, and could be utilized in drug development, or to make nutraceuticals and functional foods. Despite that, many of these properties have been studied only in vitro, and it's unsure if their effects would be relevant in vivo as well, so there is a need for more animal studies and clinical trials that would help determine if they could be applied in disease prevention or treatment.
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11
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Zhao Y, Xie Y, Li X, Song J, Guo M, Xian D, Zhong J. The protective effect of proanthocyanidins on the psoriasis-like cell models via PI3K/AKT and HO-1. Redox Rep 2022; 27:200-211. [PMID: 36178125 PMCID: PMC9542435 DOI: 10.1080/13510002.2022.2123841] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background Inflammation and oxidative stress (OS) are important contributors to psoriasis pathogenesis. Proanthocyanidins (PCs) have anti-inflammatory and anti-oxidative activities. Previously, we discovered that PCs alleviated psoriasis-like mice symptoms, likely via mitigating inflammation and OS damage. Objective To elucidate the protective mechanism underlying PCs against the damage of TNF-ɑ-induced psoriasis-like cell models. Methods Psoriasis-like cell models were established with 7.5 ng/mL TNF-ɑ and then subjected to different-concentrations PCs treatment. Finally, inflammatory and oxidative parameters were determined. Besides, LY294002 (PI3K inhibitor) and ZnPP (HO-1 inhibitor) were employed to investigate the roles of PI3K/AKT and HO-1 in PCs against psoriasis-like cell models. Results After TNF-α treatment, cells organized tightly and proliferated greatly (P<0.01); HO-1 expression dropped obviously, along with the increased OS/inflammatory indicators and the decreased antioxidants (P<0.05); consequently, psoriasis-like cell models were well established. In the presence of PCs, nevertheless, the proliferation rate and number of psoriasis-like cells evidently decreased (P<0.01), accompanied with enhanced HO-1 and antioxidants, and lowered OS/inflammatory indicators as well as phosphorylated JAK2/STAT3/PI3/AKT (P<0.01). Similar changes appeared after LY294002 pretreatment, regardless of PCs or not. But after ZnPP pretreatment with or without PCs, the opposite occurred. Conclusion The study reveals that PCs can suppress psoriasis-like cell proliferation and reduce inflammatory/OS damage through PI3K/AKT inhibition and HO-1 activation, thus promising a candidate for PCs in treating psoriasis.
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Affiliation(s)
- Yangmeng Zhao
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Yuxin Xie
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Xiaolong Li
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Jing Song
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Menglu Guo
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
| | - Dehai Xian
- Department of Anatomy, Southwest Medical University, Luzhou, People's Republic of China
| | - Jianqiao Zhong
- Department of Dermatology, the Affiliated Hospital of Southwest Medical University, Luzhou, People's Republic of China
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12
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Angwa LM, Jiang Y, Pei J, Sun D. Antioxidant Phytochemicals for the Prevention of Fluoride-Induced Oxidative Stress and Apoptosis: a Review. Biol Trace Elem Res 2022; 200:1418-1441. [PMID: 34003450 DOI: 10.1007/s12011-021-02729-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 04/16/2021] [Indexed: 02/07/2023]
Abstract
Fluorosis is a major public health problem globally. The non-availability of specific treatment and the irreversible nature of dental and skeletal lesions poses a challenge in the management of fluorosis. Oxidative stress is known to be one of the most important mechanisms of fluoride toxicity. Fluoride promotes the accumulation of reactive oxygen species by inhibiting the activity of antioxidant enzymes, resulting in the excessive production of reactive oxygen species at the cellular level which further leads to activation of cell death processes such as apoptosis. Phytochemicals that act as antioxidants have the potential to protect cells from oxidative stress. Evidence confirms that clinical symptoms of fluorosis can be mitigated to some extent or prevented by long-term intake of antioxidants and plant products. The primary purpose of this review is to examine recent findings that focus on the amelioration of fluoride-induced oxidative stress and apoptosis by natural and synthetic phytochemicals and their molecular mechanisms of action.
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Affiliation(s)
- Linet M Angwa
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, 150081, China
- Department of Clinical Medicine, Kabarak University, Nakuru, 20157, Kenya
| | - Yuting Jiang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, 150081, China
| | - Junrui Pei
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, 150081, China
| | - Dianjun Sun
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin, 150081, China.
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13
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Abstract
Tannins are an interesting class of polyphenols, characterized, in almost all cases, by a different degree of polymerization, which, inevitably, markedly influences their bioavailability, as well as biochemical and pharmacological activities. They have been used for the process of tanning to transform hides into leather, from which their name derives. For several time, they have not been accurately evaluated, but now researchers have started to unravel their potential, highlighting anti-inflammatory, antimicrobial, antioxidant and anticancer activities, as well as their involvement in cardiovascular, neuroprotective and in general metabolic diseases prevention. The mechanisms underlying their activity are often complex, but the main targets of their action (such as key enzymes modulation, activation of metabolic pathways and changes in the metabolic fluxes) are highlighted in this review, without losing sight of their toxicity. This aspect still needs further and better-designed study to be thoroughly understood and allow a more conscious use of tannins for human health.
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14
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Zhang P, Li Y, Wang T, Cai Z, Cao H, Zhang H, Cao Y, Chen B, Yang D. Statistics on the bioactive anthocyanin/proanthocyanin products in China online sales. Food Sci Nutr 2021; 9:5428-5434. [PMID: 34646513 PMCID: PMC8498052 DOI: 10.1002/fsn3.2500] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 07/03/2021] [Accepted: 07/17/2021] [Indexed: 01/01/2023] Open
Abstract
Due to their potential beneficial effects, anthocyanins and proanthocyanins have attracted great concern worldwide. Recently, anthocyanin/proanthocyanin-related health products have occupied a certain proportion of the market. However, there has not been a systematical assessment on collecting and analyzing the relevant information. In this study, information of anthocyanin/proanthocyanin-related health products on sale on the four major online shopping platforms in China has been collected from November 2020 to February 2021. A total of 144 valid samples from 91 brands were collected, among which blueberries and grape seeds are the main sources of anthocyanins and proanthocyanins, respectively. Besides, the average anthocyanins/proanthocyanins content in these products is 22.71%. Improving eyesight, anti-asthenopia and anti-oxidation are widely mentioned among the anthocyanin-related products, while more proanthocyanin-related products declare for anti-oxidation, whitening & spot lighting, and delay of skin aging & repairing skin damage effects. Among the products, 77.78% are capsules and tablets, and the average unit price of anthocyanins/proanthocyanins is $ 5.26/g. Data analysis shows that searching for high-quality raw materials, researching on the varieties and content of anthocyanins/proanthocyanins, focusing on the intake of specific population, and exploring better storage forms of anthocyanins/proanthocyanins may be important field in the future to promote the development of the anthocyanin/proanthocyanin-related health products.
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Affiliation(s)
- PeiAo Zhang
- Beijing Key Laboratory of Functional Food from Plant ResourcesCollege of Food Science & Nutritional EngineeringChina Agricultural UniversityBeijingChina
| | - Yi Li
- Beijing Key Laboratory of Functional Food from Plant ResourcesCollege of Food Science & Nutritional EngineeringChina Agricultural UniversityBeijingChina
- Xinghua Industrial Research Centre for Food Science and Human HealthChina Agricultural UniversityXinghuaChina
| | - Tianyi Wang
- Beijing Key Laboratory of Functional Food from Plant ResourcesCollege of Food Science & Nutritional EngineeringChina Agricultural UniversityBeijingChina
| | - Zixuan Cai
- Beijing Key Laboratory of Functional Food from Plant ResourcesCollege of Food Science & Nutritional EngineeringChina Agricultural UniversityBeijingChina
- Xinghua Industrial Research Centre for Food Science and Human HealthChina Agricultural UniversityXinghuaChina
| | - Haiyan Cao
- Wenir Nutrition High‐Tech Co., LtdYongfengChina
| | | | - Yubin Cao
- Jiangsu QingGu Foods Co., LtdXingdong Economic Development ZoneXinghuaChina
| | - Bo Chen
- Wenir Nutrition High‐Tech Co., LtdYongfengChina
| | - Dong Yang
- Beijing Key Laboratory of Functional Food from Plant ResourcesCollege of Food Science & Nutritional EngineeringChina Agricultural UniversityBeijingChina
- Xinghua Industrial Research Centre for Food Science and Human HealthChina Agricultural UniversityXinghuaChina
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15
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Xavier Machado TDO, Portugal IBM, Padilha CVDS, Ferreira Padilha F, Dos Santos Lima M. New trends in the use of enzymes for the recovery of polyphenols in grape byproducts. J Food Biochem 2021; 45:e13712. [PMID: 33786844 DOI: 10.1111/jfbc.13712] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 03/10/2021] [Accepted: 03/13/2021] [Indexed: 12/17/2022]
Abstract
Residues from wine and juice processing still contain about 70% of the phenolic compounds in grapes. These compounds are valued for having several bioactive properties that are explored in the pharmaceutical and food sectors. This paper aims to summarize the most recent advances in the use of enzymatic techniques for the recovery of bioactive compounds from GP for industrial application. For this, we analyzed scientific articles and patent applications from the last 20 years in the main indexed and patent databases. Among the most used enzymes in the recovery of bioactive compounds in wastes, cellulases, pectinases, tannases, glucoamylases, and proteases such as trypsin and chymotrypsin, are the most important. As a result, extracts are obtained with greater retrieval of compounds such as anthocyanins, gallic acid, catechins, epicatechins, and trans-resveratrol and the improvement of coloring, anti-inflammatory, antioxidant and vasoprotective properties. Although the use of enzymes for the recovery of phenolics is an old strategy, the number of studies focusing on the functional characteristics and industrial applicability of the extracts obtained has been recently growing. PRACTICAL APPLICATIONS: Phenolic compounds have acted as anti-inflammatories, antioxidants, anticarcinogens, and antimicrobials, being additives or relevant ingredients for various products in the food and pharmaceutical industry. Although there are several techniques for extracting/recovering phenolics from grape pomace, there is still no agreement on which method is ideal. In recent years, several extractions methods have been applied in seeking optimized conditions to recover phenolics from grape residues. Among them, the use of enzymes has been gaining attention for being considered a green and promising technology. The present study aims to carry out a review that would bring a new perspective to the recovery of bioactive compounds from grape residues by enzymatic techniques, with a view to industrial purpose.
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Affiliation(s)
| | | | | | | | - Marcos Dos Santos Lima
- Departamento de Tecnologia em Alimentos, Instituto Federal do Sertão Pernambucano, Petrolina, Brazil
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16
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Proanthocyanidins as a Potential Novel Way for the Treatment of Hemangioma. BIOMED RESEARCH INTERNATIONAL 2021; 2021:5695378. [PMID: 33490272 PMCID: PMC7801061 DOI: 10.1155/2021/5695378] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 12/13/2020] [Accepted: 12/24/2020] [Indexed: 02/08/2023]
Abstract
Hemangioma, the most common benign vascular tumor, not only affects the appearance and psychology but also has a life-threatening potential. It is considered that clonal vascular endothelial cell proliferation and excessive angiogenesis are responsible for hemangioma pathogenesis, in which abnormal cytokines/pathways are closely implicated, primarily including high expression of hypoxia-inducible factor-1α (HIF-1α) and vascular endothelial growth factor (VEGF) as well as their downstream pathways, especially phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt). These further stimulate the migration and proliferation of vascular endothelial cells and promote the formation of new vessels, ultimately leading to the occurrence and development of hemangioma. Proanthocyanidins are naturally active substance from plants and fruits. They possess multiple functions like antiproliferation, antiangiogenesis, and antitumor. It has been demonstrated that proanthocyanidins effectively work in various diseases via inhibiting the expression of various factors, e.g., HIF-1α, VEGF, PI3K, and Akt. Considering the pathogenesis of hemangioma and the effect of proanthocyanidins, we hold a hypothesis that proanthocyanidins would be applied in hemangioma via downregulating cytokine/pathway expression, suppressing vascular cell proliferation and arrest abnormal angiogenesis. Taken together, proanthocyanidins may be a potential novel way for the treatment of hemangioma.
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17
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Cheng X, Zhang J, Jing H, Qi Y, Yan T, Wu B, Du Y, Xiao F, Jia Y. Pharmacokinetic Differences of Grape Seed Procyanidins According to the Gavage Administration Between Normal Rats and Alzheimer's Disease Rats. CURR PHARM ANAL 2020. [DOI: 10.2174/1573412915666190916161225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Grape Seed Procyanidins (GSP) refers to a type of natural polyphenols
that have to roust antioxidant capacity. Studies have shed light on the fact that GSP significantly
impacts the alleviation of Alzheimer's Disease (AD).
Objective:
This study aimed at investigating whether there exists a pharmacokinetics difference in
GSP between normal and AD rats, a rapid UPLC-MS/MS methodology, for the detection of its
content in plasma samples was put forward. We carried out an analysis of the plasma concentrations
of procyanidin B2, procyanidin B3, catechin and epicatechin in normal and AD rats over time
for determining the plasma concentration of GSP.
Methods:
We made use of 400 μL of methanol for the protein precipitation solvent in the plasma
treatment. The chromatographic separation was carried out on a C18 column at a temperature of 20 °C.
The mobile phase was a gradient of 0.1% formic acid in water and methanol within 15 min.
Results:
: In the current research work, the plasma concentrations of procyanidin B2, procyanidin
B3, catechin and epicatechin in AD rats were significantly higher as compared with those in normal
rats (P < 0.05) and the content of epicatechin constituted the highest as compared with catechin,
procyanidin B2 and procyanidin B3 following the administration of GSP.
Conclusion:
We discovered the better absorptions of these analytes in the AD group as compared
with that in the normal group, providing an analytical basis for treating the AD with procyanidins.
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Affiliation(s)
- Xinhui Cheng
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China
| | - Jingying Zhang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China
| | - Huiting Jing
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China
| | - Yu Qi
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China
| | - Tingxu Yan
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China
| | - Bo Wu
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China
| | - Yiyang Du
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China
| | - Feng Xiao
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China
| | - Ying Jia
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang 110016, China
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18
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Zeng YX, Wang S, Wei L, Cui YY, Chen YH. Proanthocyanidins: Components, Pharmacokinetics and Biomedical Properties. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2020; 48:813-869. [PMID: 32536248 DOI: 10.1142/s0192415x2050041x] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Proanthocyanidins (PAs) are a group of polyphenols enriched in plant and human food. In recent decades, epidemiological studies have upheld the direct relationship between PA consumption and health benefits; therefore, studies on PAs have become a research hotspot. Although the oral bioavailability of PAs is quite low, pharmacokinetics data revealed that some small molecules and colonic microbial metabolites of PAs could be absorbed and exert their health beneficial effects. The pharmacological effects of PAs mainly include anti-oxidant, anticancer, anti-inflammation, antimicrobial, cardiovascular protection, neuroprotection, and metabolism-regulation behaviors. Moreover, current toxicological studies show that PAs have no observable toxicity to humans. This review summarizes the resources, extraction, structures, pharmacokinetics, pharmacology, and toxicology of PAs and discusses the limitations of current studies. Areas for further research are also proposed.
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Affiliation(s)
- Yan-Xi Zeng
- Department of Cell Biology, Tongji University School of Medicine, Shanghai 200092, P. R. China
| | - Sen Wang
- Department of Cell Biology, Tongji University School of Medicine, Shanghai 200092, P. R. China
| | - Lu Wei
- Department of Cell Biology, Tongji University School of Medicine, Shanghai 200092, P. R. China
| | - Ying-Yu Cui
- Key Laboratory of Arrhythmias, Ministry of Education (Tongji University), Shanghai 200120, P. R. China.,Heart Health Centre, Tongji University School of Medicine, Shanghai 200120, P. R. China.,Institute of Medical Genetics, Tongji University School of Medicine, Shanghai 200092, P. R. China.,Department of Cell Biology, Tongji University School of Medicine, Shanghai 200092, P. R. China
| | - Yi-Han Chen
- Key Laboratory of Arrhythmias, Ministry of Education (Tongji University), Shanghai 200120, P. R. China.,Heart Health Centre, Tongji University School of Medicine, Shanghai 200120, P. R. China.,Department of Cardiology, East Hospital, Tongji University School of Medicine, Shanghai 200120, P. R. China.,Institute of Medical Genetics, Tongji University School of Medicine, Shanghai 200092, P. R. China.,Department of Pathology and Pathophysiology, Tongji University School of Medicine, Shanghai 200092, P. R. China
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19
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González-Quilen C, Grau-Bové C, Jorba-Martín R, Caro-Tarragó A, Pinent M, Ardévol A, Beltrán-Debón R, Terra X, Blay MT. Protective properties of grape-seed proanthocyanidins in human ex vivo acute colonic dysfunction induced by dextran sodium sulfate. Eur J Nutr 2020; 60:79-88. [PMID: 32189068 DOI: 10.1007/s00394-020-02222-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 03/04/2020] [Indexed: 12/16/2022]
Abstract
PURPOSE Anti-inflammatory and barrier-protective properties have been attributed to proanthocyanidins in the context of intestinal dysfunction, however little information is available about the impact of these phytochemicals on intestinal barrier integrity and immune response in the human. Here we assessed the putative protective properties of a grape-seed proanthocyanidin extract (GSPE) against dextran sodium sulfate (DSS)-induced acute dysfunction of the human colon in an Ussing chamber system. METHODS Human proximal and distal colon tissues from colectomized patients were submitted ex vivo for a 30-min preventive GSPE treatment (50 or 200 µg mL-1) followed by 1-h incubation with DSS (12% w v-1). Transepithelial electrical resistance (TEER), permeation of a fluorescently-labeled dextran (FD4) and proinflammatory cytokine release [tumor necrosis factor (TNF)-α and interleukin (IL)-1β] of colonic tissues were determined. RESULTS DSS reduced TEER (45-52%) in both the proximal and distal colon; however, significant increments in FD4 permeation (fourfold) and TNF-α release (61%) were observed only in the proximal colon. The preventive GSPE treatment decreased DSS-induced TEER loss (20-32%), FD4 permeation (66-73%) and TNF-α release (22-33%) of the proximal colon dose-dependently. The distal colon was not responsive to the preventive treatment but showed a reduction in IL-1β release below basal levels with the highest GSPE concentration. CONCLUSIONS Our results demonstrate potential preventive effects of GSPE on human colon dysfunction. Further studies are required to test whether administering GSPE could be a complementary therapeutic approach in colonic dysfunction associated with metabolic disorders and inflammatory bowel disease.
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Affiliation(s)
- Carlos González-Quilen
- Departament de Bioquímica i Biotecnologia, MoBioFood Research Group, Universitat Rovira I Virgili, 43007, Tarragona, Spain
| | - Carme Grau-Bové
- Departament de Bioquímica i Biotecnologia, MoBioFood Research Group, Universitat Rovira I Virgili, 43007, Tarragona, Spain
| | - Rosa Jorba-Martín
- Servei de Cirurgia General i de l'Aparell Digestiu, Hospital Universitari Joan XXIII, Tarragona, Spain
| | - Aleidis Caro-Tarragó
- Servei de Cirurgia General i de l'Aparell Digestiu, Hospital Universitari Joan XXIII, Tarragona, Spain
| | - Montserrat Pinent
- Departament de Bioquímica i Biotecnologia, MoBioFood Research Group, Universitat Rovira I Virgili, 43007, Tarragona, Spain
| | - Anna Ardévol
- Departament de Bioquímica i Biotecnologia, MoBioFood Research Group, Universitat Rovira I Virgili, 43007, Tarragona, Spain
| | - Raúl Beltrán-Debón
- Departament de Bioquímica i Biotecnologia, MoBioFood Research Group, Universitat Rovira I Virgili, 43007, Tarragona, Spain.
| | - Ximena Terra
- Departament de Bioquímica i Biotecnologia, MoBioFood Research Group, Universitat Rovira I Virgili, 43007, Tarragona, Spain
| | - M Teresa Blay
- Departament de Bioquímica i Biotecnologia, MoBioFood Research Group, Universitat Rovira I Virgili, 43007, Tarragona, Spain
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20
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Grape seed flour intake decreases adiposity gain in high-fat-diet induced obese mice by activating thermogenesis. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.103509] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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21
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Montgomery M, Srinivasan A. Epigenetic Gene Regulation by Dietary Compounds in Cancer Prevention. Adv Nutr 2019; 10:1012-1028. [PMID: 31100104 PMCID: PMC6855955 DOI: 10.1093/advances/nmz046] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 03/07/2019] [Accepted: 04/03/2019] [Indexed: 02/06/2023] Open
Abstract
Traditionally, cancer has been viewed as a set of diseases that are driven by the accumulation of genetic mutations, but we now understand that disruptions in epigenetic regulatory mechanisms are prevalent in cancer as well. Unlike genetic mutations, however, epigenetic alterations are reversible, making them desirable therapeutic targets. The potential for diet, and bioactive dietary components, to target epigenetic pathways in cancer is now widely appreciated, but our understanding of how to utilize these compounds for effective chemopreventive strategies in humans is in its infancy. This review provides a brief overview of epigenetic regulation and the clinical applications of epigenetics in cancer. It then describes the capacity for dietary components to contribute to epigenetic regulation, with a focus on the efficacy of dietary epigenetic regulators as secondary cancer prevention strategies in humans. Lastly, it discusses the necessary precautions and challenges that will need to be overcome before the chemopreventive power of dietary-based intervention strategies can be fully harnessed.
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Affiliation(s)
- McKale Montgomery
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK,Address correspondence to MM (E-mail: )
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Garcia LAT, Boff L, Barardi CRM, Nagl M. Inactivation of Adenovirus in Water by Natural and Synthetic Compounds. FOOD AND ENVIRONMENTAL VIROLOGY 2019; 11:157-166. [PMID: 30719622 DOI: 10.1007/s12560-019-09370-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 01/23/2019] [Indexed: 05/28/2023]
Abstract
Millions of people use contaminated water sources for direct consumption. Chlorine is the most widely disinfection product but can produce toxic by-products. In this context, natural and synthetic compounds can be an alternative to water disinfection. Therefore, the aim of this study was to assess the inactivation of human adenovirus by N-chlorotaurine (NCT), bromamine-T (BAT) and Grape seed extract (GSE) in water. Distilled water artificially contaminated with recombinant human adenovirus type 5 (rAdV-GFP) was treated with different concentrations of each compound for up to 120 min, and viral infectivity was assessed by fluorescence microscopy. The decrease in activity of the compounds in the presence of organic matter was evaluated in water supplemented with peptone. As results, NCT and GSE inactivated approximately 2.5 log10 of adenovirus after 120 min. With BAT, more than 4.0 log10 decrease was observed within 10 min. The oxidative activity of 1% BAT decreased by 50% in 0.5% peptone within a few minutes, while the reduction was only 30% for 1% NCT in 5% peptone after 60 min. Organic matter had no effect on the activity of GSE. Moreover, the minimal concentration of BAT and GSE to kill viruses was lower than that known to kill human cells. It was concluded that the three compounds have potential to be used for water disinfection for drinking or reuse purposes.
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Affiliation(s)
- Lucas Ariel Totaro Garcia
- Laboratório de Virologia Aplicada/Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil.
| | - Laurita Boff
- Laboratório de Virologia Aplicada/Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Célia Regina Monte Barardi
- Laboratório de Virologia Aplicada/Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina, Campus Trindade, Florianópolis, SC, 88040-900, Brazil
| | - Markus Nagl
- Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
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González-Quilen C, Gil-Cardoso K, Ginés I, Beltrán-Debón R, Pinent M, Ardévol A, Terra X, Blay MT. Grape-Seed Proanthocyanidins are Able to Reverse Intestinal Dysfunction and Metabolic Endotoxemia Induced by a Cafeteria Diet in Wistar Rats. Nutrients 2019; 11:nu11050979. [PMID: 31035432 PMCID: PMC6567002 DOI: 10.3390/nu11050979] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/12/2019] [Accepted: 04/26/2019] [Indexed: 02/06/2023] Open
Abstract
We evaluated the effectiveness of pharmacological doses of grape-seed proanthocyanidin extract (GSPE) in reversing intestinal barrier alterations and local inflammation in female Wistar rats fed a long-term obesogenic diet. Animals were fed a 17-week cafeteria diet (CAF diet), supplemented with daily GSPE doses (100 or 500 mg kg−1 body weight) during the final two weeks. CAF diet enhanced the intestinal permeation of an orally administered marker (ovalbumin, OVA) and increased the plasma levels of tumor necrosis factor-α (TNF-α) and lipopolysaccharides (LPS) in 2–3-fold. Ex vivo Ussing chamber assays showed a 55–70% reduction in transepithelial electrical resistance (TEER) and increased the TNF-α secretions in both small and large intestinal sections with a 25-fold increment in the ileum. Ileal tissues also presented a 4-fold increase of myeloperoxidase (MPO) activity. Both GSPE-treatments were able to restitute TEER values in the ileum and colon and to reduce plasma LPS to basal levels without a dose-dependent effect. However, effects on the OVA permeation and TNF-α secretion were dose and section-specific. GSPE also reduced ileal MPO activity and upregulated claudin 1 gene expression. This study provides evidence of the efficacy of GSPE-supplementation ameliorating diet-induced intestinal dysfunction and metabolic endotoxemia when administered at the end of a long-term obesogenic diet.
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Affiliation(s)
- Carlos González-Quilen
- MoBioFood Research Group, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
| | - Katherine Gil-Cardoso
- MoBioFood Research Group, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
| | - Iris Ginés
- MoBioFood Research Group, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
| | - Raúl Beltrán-Debón
- MoBioFood Research Group, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
| | - Montserrat Pinent
- MoBioFood Research Group, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
| | - Anna Ardévol
- MoBioFood Research Group, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
| | - Ximena Terra
- MoBioFood Research Group, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
| | - M Teresa Blay
- MoBioFood Research Group, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
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Andrade MA, Lima V, Sanches Silva A, Vilarinho F, Castilho MC, Khwaldia K, Ramos F. Pomegranate and grape by-products and their active compounds: Are they a valuable source for food applications? Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.02.010] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Upanan S, Yodkeeree S, Thippraphan P, Punfa W, Wongpoomchai R, Limtrakul Dejkriengkraikul P. The Proanthocyanidin-Rich Fraction Obtained from Red Rice Germ and Bran Extract Induces HepG2 Hepatocellular Carcinoma Cell Apoptosis. Molecules 2019; 24:molecules24040813. [PMID: 30813458 PMCID: PMC6412498 DOI: 10.3390/molecules24040813] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 02/20/2019] [Accepted: 02/20/2019] [Indexed: 02/03/2023] Open
Abstract
This study aims to determine the anti-carcinogenic effects of the proanthocyanidin-rich fraction (PRFR) obtained from red rice germ and bran extract on HepG2 cells. The PRFR obtained from red rice germ and bran extract could reduce the cell viability of HepG2 cells as shown by the IC50 value at 20 µg/mL. Notably, PRFR concentrations at 20 and 40 µg/mL significantly increased the number of cells in the G2/M phase from 25.7% ± 1.4%in the control group to 36.2% ± 3.4% (p < 0.01) and 48.9% ± 2.6% (p < 0.0001), respectively, suggesting that the cells were arrested in this phase, which was confirmed by the reduction of survival proteins, including cyclin B1 and cdc25. Moreover, the PRFR at 20 and 40 µg/mL could induce cell death via the apoptosis cascade, indicated by the percentage of total apoptotic cells from 9.9% ± 3.1% in the control group to 41.1 ± 3.9 (p < 0.0001) and 82.2% ± 5.8% (p < 0.0001), respectively. This was clarified by increasing apoptotic proteins (such as cleaved PARP-1, cleaved caspase-8 and cleaved caspase-3) and decreasing anti-apoptotic protein survivin without p53 alterations. These results demonstrated that the PRFR obtained from red rice germ and bran extract could inhibit cell proliferation and induce cell apoptosis in HepG2 cells via survivin, which could potentially serve as a new target for cancer therapeutics making it an excellent "lead candidate" molecule for in vivo proof-of concept studies.
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Affiliation(s)
- Supranee Upanan
- Anticarcinogenesis and Apoptosis Research Cluster, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
| | - Supachai Yodkeeree
- Anticarcinogenesis and Apoptosis Research Cluster, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
| | - Pilaiporn Thippraphan
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
| | - Wanisa Punfa
- Anticarcinogenesis and Apoptosis Research Cluster, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
| | - Rawiwan Wongpoomchai
- Anticarcinogenesis and Apoptosis Research Cluster, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
| | - Pornngarm Limtrakul Dejkriengkraikul
- Anticarcinogenesis and Apoptosis Research Cluster, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
- Center for Research and Development of Natural Products for Health, Chiang Mai University, Chiang Mai 50200, Thailand.
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Lai R, Xian D, Xiong X, Yang L, Song J, Zhong J. Proanthocyanidins: novel treatment for psoriasis that reduces oxidative stress and modulates Th17 and Treg cells. Redox Rep 2018; 23:130-135. [PMID: 29630472 PMCID: PMC6748681 DOI: 10.1080/13510002.2018.1462027] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Psoriasis is a common, chronic, inflammatory skin disease that affects 2%-4% of the global population. Recent studies have shown that increased oxidative stress (OS) and T-cell abnormalities are central to the pathogenesis of this disease. The resulting reactive oxygen species (ROS) induces proliferation and differentiation of Th17/Th1/Th22 cells and inhibits the anti-inflammatory activities of regulatory T lymphocytes (Treg). Subsequent secretions of inflammatory cytokines, such as interleukin (IL)-17, IL-22, tumor necrosis factor alpha (TNF-α), and interferon-gamma (IFN-γ), and vascular endothelial growth factor (VEGF), stimulate keratinocyte proliferation and angiogenesis. Proanthocyanidins are a class of flavonoids from plants and fruits, and have various antioxidant, anti-inflammatory, and anti-angiogenic properties. Numerous reports have demonstrated therapeutic effects of proanthocyanidins for various diseases. Among clinical activities, proanthocyanidins suppress cell proliferation, prevent OS, and regulate Th17/Treg cells. Because the pathogenesis of psoriasis involves OS and T cells dysregulation, we reviewed the effects of proanthocyanidins on OS, Th17 and Treg cell activities, and keratinocyte proliferation and angiogenesis. Data from multiple previous studies warrant consideration of proanthocyanidins as a promising strategy for the treatment of psoriasis.
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Affiliation(s)
- Rui Lai
- Department of Dermatology, the Affiliated
Hospital of Southwest Medical University, Luzhou,
People's Republic of China
| | - Dehai Xian
- Department of Anatomy, Southwest Medical
University, Luzhou, People's Republic of
China
| | - Xia Xiong
- Department of Dermatology, the Affiliated
Hospital of Southwest Medical University, Luzhou,
People's Republic of China
| | - Lingyu Yang
- Department of Dermatology, the Affiliated
Hospital of Southwest Medical University, Luzhou,
People's Republic of China
| | - Jing Song
- Department of Dermatology, the Affiliated
Hospital of Southwest Medical University, Luzhou,
People's Republic of China
| | - Jianqiao Zhong
- Department of Dermatology, the Affiliated
Hospital of Southwest Medical University, Luzhou,
People's Republic of China
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David IMB, de Souza Fernandes F, Dos Santos Silva Ferreira JB, Lüdtke DD, Martins DF, Bobinski F, da Silva TBGC, Buffon LD, Kopper MBR, da Silva GS, Zeferino RC, Pedrosa RC, Kviecinski MR. Dietary supplementation with procyanidin-rich Pinus pinaster extract is associated with attenuated Ehrlich tumor development in mice. Nutr Res 2018; 62:41-50. [PMID: 30803506 DOI: 10.1016/j.nutres.2018.11.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 08/28/2018] [Accepted: 11/08/2018] [Indexed: 11/17/2022]
Abstract
Inflammation and oxidative stress are related to cancer initiation and progression. We hypothesized that dietary supplementation with a procyanidin-rich Pinus pinaster extract (Pyc) with known antioxidant and anti-inflammatory effects could induce systemic protection, thereby attenuating tumor development. To test our hypothesis, mice were subjected to long-term supplementation (20 days, every 24 h) with saline, 25 mg/kg resveratrol or 100 mg/kg Pyc. Pyc was administered at a maximum tolerated oral dose, previously determined using toxicity indicators. Ten days after Ehrlich ascites tumor induction, weight gain and abdominal circumference increase were calculated. Ascitic fluid from six mice/group was evaluated by determining total volume; tumor packed cell volume; cell viability; tumor cell death type; inflammatory infiltrate; and levels of tumor necrosis factor alpha (TNF-α), interleukin 1 beta (IL-1β), carbonyl proteins, lipid peroxidation, cyclooxigenase-2 (COX-2) expression and Akt phosphorylation (p-Akt). Ten mice/group were monitored to evaluate survival. Pyc and resveratrol were associated with reduced weight gain (>30%), abdominal circumference and ascitic volume. Tumor packed cell volume was reduced in Pyc-supplemented mice (26%), which had the largest tumor cell count reduction (>35%), increased ascitic fluid apoptosis rates (20%) and the longest survival (>2-fold). Pyc and resveratrol treatment both reduced inflammatory infiltrate and levels of TNF-α, IL-1β, carbonyl proteins, lipid peroxidation (~ 30%) and p-Akt (up to 4-fold). Only Pyc significantly inhibited COX-2. Pyc attenuated oxidative and inflammation mediators and impaired tumor development, supporting our hypothesis and suggesting Pyc as a candidate for future studies in multitargeted dietary-based cancer prevention approaches.
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Affiliation(s)
- Isabela Machado Barbosa David
- Post-Graduate Program in Health Sciences, Universidade do Sul de Santa Catarina, Av. Pedra Branca, 25. Palhoça SC, 88137-270, Brazil.
| | - Flávia de Souza Fernandes
- Post-Graduate Program in Health Sciences, Universidade do Sul de Santa Catarina, Av. Pedra Branca, 25. Palhoça SC, 88137-270, Brazil.
| | | | - Daniela Dero Lüdtke
- Post-Graduate Program in Health Sciences, Universidade do Sul de Santa Catarina, Av. Pedra Branca, 25. Palhoça SC, 88137-270, Brazil.
| | - Daniel Fernandes Martins
- Post-Graduate Program in Health Sciences, Universidade do Sul de Santa Catarina, Av. Pedra Branca, 25. Palhoça SC, 88137-270, Brazil.
| | - Franciane Bobinski
- Post-Graduate Program in Health Sciences, Universidade do Sul de Santa Catarina, Av. Pedra Branca, 25. Palhoça SC, 88137-270, Brazil.
| | | | - Luiza Daux Buffon
- Post-Graduate Program in Health Sciences, Universidade do Sul de Santa Catarina, Av. Pedra Branca, 25. Palhoça SC, 88137-270, Brazil.
| | - Maria Biatriz Rodrigues Kopper
- Post-Graduate Program in Health Sciences, Universidade do Sul de Santa Catarina, Av. Pedra Branca, 25. Palhoça SC, 88137-270, Brazil.
| | - Gustavo Silveira da Silva
- Post-Graduate Program in Health Sciences, Universidade do Sul de Santa Catarina, Av. Pedra Branca, 25. Palhoça SC, 88137-270, Brazil.
| | - Rodrigo Costa Zeferino
- Biochemistry Department, Universidade Federal de Santa Catarina, Campus Reitor João David Ferreira Lima, s/n - Trindade, Florianópolis, - SC, 88040-900, Brazil.
| | - Rozangela Curi Pedrosa
- Biochemistry Department, Universidade Federal de Santa Catarina, Campus Reitor João David Ferreira Lima, s/n - Trindade, Florianópolis, - SC, 88040-900, Brazil.
| | - Maicon Roberto Kviecinski
- Post-Graduate Program in Health Sciences, Universidade do Sul de Santa Catarina, Av. Pedra Branca, 25. Palhoça SC, 88137-270, Brazil.
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Zhang QY, Wang FX, Jia KK, Kong LD. Natural Product Interventions for Chemotherapy and Radiotherapy-Induced Side Effects. Front Pharmacol 2018; 9:1253. [PMID: 30459615 PMCID: PMC6232953 DOI: 10.3389/fphar.2018.01253] [Citation(s) in RCA: 170] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 10/15/2018] [Indexed: 12/24/2022] Open
Abstract
Cancer is the second leading cause of death in the world. Chemotherapy and radiotherapy are the common cancer treatments. However, the development of adverse effects resulting from chemotherapy and radiotherapy hinders the clinical use, and negatively reduces the quality of life in cancer patients. Natural products including crude extracts, bioactive components-enriched fractions and pure compounds prepared from herbs as well as herbal formulas have been proved to prevent and treat cancer. Of significant interest, some natural products can reduce chemotherapy and radiotherapy-induced oral mucositis, gastrointestinal toxicity, hepatotoxicity, nephrotoxicity, hematopoietic system injury, cardiotoxicity, and neurotoxicity. This review focuses in detail on the effectiveness of these natural products, and describes the possible mechanisms of the actions in reducing chemotherapy and radiotherapy-induced side effects. Recent advances in the efficacy of natural dietary supplements to counteract these side effects are highlighted. In addition, we draw particular attention to gut microbiotan in the context of prebiotic potential of natural products for the protection against cancer therapy-induced toxicities. We conclude that some natural products are potential therapeutic perspective for the prevention and treatment of chemotherapy and radiotherapy-induced side effects. Further studies are required to validate the efficacy of natural products in cancer patients, and elucidate potential underlying mechanisms.
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Affiliation(s)
- Qing-Yu Zhang
- School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, China
| | - Fei-Xuan Wang
- Department of Pathology, Sir Run Run Hospital, Nanjing Medical University, Nanjing, China
| | - Ke-Ke Jia
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Ling-Dong Kong
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
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29
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Long M, Chen X, Wang N, Wang M, Pan J, Tong J, Li P, Yang S, He J. Proanthocyanidins Protect Epithelial Cells from Zearalenone-Induced Apoptosis via Inhibition of Endoplasmic Reticulum Stress-Induced Apoptosis Pathways in Mouse Small Intestines. Molecules 2018; 23:molecules23071508. [PMID: 29933637 PMCID: PMC6099583 DOI: 10.3390/molecules23071508] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 06/17/2018] [Accepted: 06/19/2018] [Indexed: 12/20/2022] Open
Abstract
This study evaluated the protective effect of proanthocyanidins (PCs) on reducing apoptosis in the mouse intestinal epithelial cell model MODE-K exposed to zearalenone (ZEA) through inhibition of the endoplasmic reticulum stress (ERS)-induced apoptosis pathway. Our results showed that PCs could reduce the rate of apoptosis in MODE-K cells exposed to ZEA (p < 0.01). PCs significantly increased the ZEA-induced antioxidant protective effects on the enzymes superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) and on the content of GSH. PCs also significantly decreased the ZEA-induced increase in the content of malondialdehyde (MDA). The analysis indicated that ZEA increased both mRNA and protein expression levels of C/EBP homologous protein (CHOP), GRP78, c-Jun N-terminal kinase (JNK), and cysteinyl aspartate specific proteinase 12 (caspase-12) (p < 0.05), which are related to the ERS-induced apoptosis pathway. ZEA decreased levels of the pro-apoptotic related protein Bcl-2 (p < 0.05) and increased the anti-apoptotic related protein Bax (p < 0.05). Co-treatment with PCs was also shown to significantly reverse the expression levels of these proteins in MODE-K cells. The results demonstrated that PCs could protect MODE-K cells from oxidative stress and apoptosis induced by ZEA. The underlying mechanism may be that PCs can alleviate apoptosis in mouse intestinal epithelial cells by inhibition of the ERS-induced apoptosis pathway.
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Affiliation(s)
- Miao Long
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Xinliang Chen
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Nan Wang
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Mingyang Wang
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Jiawen Pan
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Jingjing Tong
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Peng Li
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Shuhua Yang
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
| | - Jianbin He
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China.
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30
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Proanthocyanidins against Oxidative Stress: From Molecular Mechanisms to Clinical Applications. BIOMED RESEARCH INTERNATIONAL 2018; 2018:8584136. [PMID: 29750172 PMCID: PMC5884402 DOI: 10.1155/2018/8584136] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 01/14/2018] [Indexed: 12/15/2022]
Abstract
Proanthocyanidins (PCs) are naturally occurring polyphenolic compounds abundant in many vegetables, plant skins (rind/bark), seeds, flowers, fruits, and nuts. Numerous in vitro and in vivo studies have demonstrated myriad effects potentially beneficial to human health, such as antioxidation, anti-inflammation, immunomodulation, DNA repair, and antitumor activity. Accumulation of prooxidants such as reactive oxygen species (ROS) exceeding cellular antioxidant capacity results in oxidative stress (OS), which can damage macromolecules (DNA, lipids, and proteins), organelles (membranes and mitochondria), and whole tissues. OS is implicated in the pathogenesis and exacerbation of many cardiovascular, neurodegenerative, dermatological, and metabolic diseases, both through direct molecular damage and secondary activation of stress-associated signaling pathways. PCs are promising natural agents to safely prevent acute damage and control chronic diseases at relatively low cost. In this review, we summarize the molecules and signaling pathways involved in OS and the corresponding therapeutic mechanisms of PCs.
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31
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Smith T, Engelbrecht L, Smith C. Anti-inflammatory cellular targets on neutrophils elucidated using a novel cell migration model and confocal microscopy: a clinical supplementation study. JOURNAL OF INFLAMMATION-LONDON 2018; 15:2. [PMID: 29311762 PMCID: PMC5756363 DOI: 10.1186/s12950-017-0177-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 12/17/2017] [Indexed: 01/20/2023]
Abstract
Background In vivo studies have shown grape seed-derived polyphenols (GSP) to benefit in recovery from muscle injury by modulation of neutrophil infiltration into damaged tissue, thereby reducing secondary damage, as well as by facilitating an early anti-inflammatory macrophage phenotype shift. The current study aimed to provide data in this context from human models and to elucidate specific molecular targets of GSP. Using a placebo-controlled, double-blind study design, eighteen normally healthy volunteers between the ages of 18–35 years old (13 female and 5 male) were orally supplemented with 140 mg/day of GSP for 2 weeks. Blood samples (days 0 and 14) were comprehensively analysed for in vitro neutrophil chemokinetic capacity towards a chemotaxin (fMLP) using a novel neutrophil migration assay, in combination with live cell tracking, as well as immunostaining for neutrophil polarisation factors (ROCK, PI3K) at migration endpoint. Macrophage phenotype marker expression was assessed using flow cytometry. Results fMLP induced significant chemokinesis (P < 0.01), validating our model. GSP did not exert a significant effect on neutrophil chemokinesis in this non-compromised population, but tended to decrease overall ROCK expression in fMLP-stimulated neutrophils (P = 0.06). Macrophage phenotype markers CD274 and MPO – indicators of a pro-inflammatory M1 phenotype – seemed to be normalised relative to baseline expression levels after GSP treatment. Conclusions Current data suggest that GSP may have a modulatory effect on the ROCK-PI3K-PTEN system, but results in this normal population is not conclusive and should be confirmed in a larger, more inflamed population. Potential modulation of macrophage phenotype by GSP should be investigated further. Electronic supplementary material The online version of this article (10.1186/s12950-017-0177-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- T Smith
- Department Physiological Sciences, Science Faculty, Stellenbosch University, Stellenbosch, South Africa
| | - L Engelbrecht
- Central Analytical Facility, Stellenbosch University, Stellenbosch, South Africa
| | - C Smith
- Department Physiological Sciences, Science Faculty, Stellenbosch University, Stellenbosch, South Africa
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32
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Zhang YP, Liu SY, Sun QY, Ren J, Liu HX, Li H. Proanthocyanidin B2 attenuates high-glucose-induced neurotoxicity of dorsal root ganglion neurons through the PI3K/Akt signaling pathway. Neural Regen Res 2018; 13:1628-1636. [PMID: 30127125 PMCID: PMC6126122 DOI: 10.4103/1673-5374.237174] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
High glucose affects primary afferent neurons in dorsal root ganglia by inhibiting neurite elongation, causing oxidative stress, and inducing neuronal apoptosis and mitochondrial dysfunction, which finally result in neuronal damage. Proanthocyanidin, a potent antioxidant, has been shown to have neuroprotective effects. Proanthocyanidin B2 is a common dimer of oligomeric proanthocyanidins. To date, no studies have reported the neuroprotective effects of proanthocyanidin B2 against high-glucose-related neurotoxicity in dorsal root ganglion neurons. In this study, 10 µg/mL proanthocyanidin B2 was used to investigate its effect on 45 mM high-glucose-cultured dorsal root ganglion neurons. We observed that challenge with high levels of glucose increased neuronal reactive oxygen species and promoted apoptosis, decreased cell viability, inhibited outgrowth of neurites, and decreased growth-associated protein 43 protein and mRNA levels. Proanthocyanidin B2 administration reversed the neurotoxic effects caused by glucose challenge. Blockage of the phosphatidylinositol 3 kinase/Akt signaling pathway with 10 µM LY294002 eliminated the protective effects of proanthocyanidin B2. Therefore, proanthocyanidin B2 might be a potential novel agent for the treatment of peripheral diabetic neuropathy.
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Affiliation(s)
- Yuan-Pin Zhang
- Department of Rheumatology, Shandong University Qilu Hospital, Jinan, Shandong Province; Department of Endocrinology and Metabolism, Fudan University Huashan Hospital, Shanghai, China
| | - Si-Yan Liu
- Department of Rheumatology, Shandong University Qilu Hospital, Jinan, Shandong Province, China
| | - Qian-Yu Sun
- Department of Rheumatology, Shandong University Qilu Hospital, Jinan, Shandong Province, China
| | - Jing Ren
- Department of Rheumatology, Shandong University Qilu Hospital, Jinan, Shandong Province, China
| | - Hua-Xiang Liu
- Department of Rheumatology, Shandong University Qilu Hospital, Jinan, Shandong Province, China
| | - Hao Li
- Department of Orthopedics, Shandong University Qilu Hospital, Jinan, Shandong Province, China
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Lei Y, Chen Q, Chen J, Liu D. Potential ameliorative effects of grape seed-derived polyphenols against cadmium induced prostatic deficits. Biomed Pharmacother 2017; 91:707-713. [PMID: 28499242 DOI: 10.1016/j.biopha.2017.05.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 04/25/2017] [Accepted: 05/02/2017] [Indexed: 02/06/2023] Open
Abstract
Grape (Vitis vinifera) is consumed as fruit and wine for people. In this study, rat model of prostatic deficits was induced by orally receiving 60mg/L cadmium chlorine (CdCl2) through drinking water for 20 weeks. Grape seed-derived polyphenols extract (GSP) was orally given for 20 weeks. Finally, the prostatic levels of E-cadherin, fibronectin, and α-smooth muscle actin were measured by immunohistochemical and qPCR analysis. The oxidative stress was measured by detecting the levels of malondialdehyde, nitric oxide, reduced glutathione/oxidized glutathione and enzymatic antioxidant status. Additionally, the prostatic expressions of transforming growth factor-β1 (TGF-β1), type I TGF-β receptor (TGF-βRI), Smad3, phosphorylation-Smad3 (p-Smad3), Smad7, nuclear related factor-2 (Nrf-2), heme oxygenase-1 (HO-1) and γ-glutamate cysteine ligase catalytic subunit (γ-GCLC) were measured by western blot. The levels of microRNA (miR)-133a/b were measured by qPCR. It was observed that GSP ameliorated the prostatic oxidative stress and fibrosis induced by CdCl2. GSP also inhibited the over-generation of TGF-β1 and p-Smad3, as well as enhanced the levels of Smad7, Nrf-2, HO-1, γ-GCLC and miR-133a/b. These results showed that GSP could attenuate Cd-induced prostatic deficits.
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Affiliation(s)
- Yongfang Lei
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian Chen
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jinglou Chen
- Department of Pharmacy, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Dong Liu
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Xiao J, Georgiev MI. Second international symposium on phytochemicals in medicine and food (2-ISPMF). Food Chem Toxicol 2017; 108:353-354. [PMID: 28347759 DOI: 10.1016/j.fct.2017.03.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Jianbo Xiao
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Taipa, Macau, China.
| | - Milen I Georgiev
- Group of Plant Cell Biotechnology and Metabolomics, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 139 Ruski Blvd., 4000 Plovdiv, Bulgaria.
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Chang P, Mo B, Cauvi DM, Yu Y, Guo Z, Zhou J, Huang Q, Yan Q, Chen G, Liu Z. Grape seed proanthocyanidin extract protects lymphocytes against histone-induced apoptosis. PeerJ 2017; 5:e3108. [PMID: 28344907 PMCID: PMC5363264 DOI: 10.7717/peerj.3108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 02/20/2017] [Indexed: 12/19/2022] Open
Abstract
Apoptosis of lymphocytes is associated with immunosuppression and poor prognosis in sepsis. Our previous report showed that histones, nuclear proteins released from damaged or dying cells in sepsis, can mediate lymphocyte apoptosis via mitochondria damage. Grape seed proanthocyanidin extract (GSPE), a natural substance with protective properties against oxidative stress, plays a vital role in cell and mitochondria protection. We thus hypothesized that GSPE may play a protective role in histone-induced lymphocyte apoptosis through its anti-oxidative properties. In this study, we investigated the protective efficacy of GSPE on lymphocyte apoptosis induced by extracellular histones, a main contributor of death in sepsis. Human blood lymphocytes were treated with 50 μg/ml histones, 2 μg/ml GSPE, or a combination of both. A total of 100 μM N-acetylcysteine (NAC), a reactive oxygen species (ROS) inhibitor, was used as a positive control for GSPE. Apoptosis, intracellular ROS levels, mitochondrial membrane potential, Bcl-2 expression, and caspase-3 cleavage were measured. Our data clearly indicate that GSPE significantly inhibited lymphocyte apoptosis, generation of ROS, the loss of mitochondrial membrane potential, the decrease in Bcl-2 expression, and caspase-3 activation induced by extracellular histones. In conclusion, we show that GSPE has a protective effect on lymphocyte apoptosis induced by extracellular histones. This study suggests GSPE as a potential therapeutic agent that could help reduce lymphocyte apoptosis, and thus the state of immunosuppression was observed in septic patients.
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Affiliation(s)
- Ping Chang
- Department of ICU, Zhujiang Hospital of Southern Medical University , Guangzhou, Guangdong , China
| | - Bing Mo
- Department of ICU, Zhujiang Hospital of Southern Medical University , Guangzhou, Guangdong , China
| | - David M Cauvi
- Department of Surgery, University of California San Diego , La Jolla, CA , USA
| | - Ying Yu
- Department of ICU, Zhujiang Hospital of Southern Medical University , Guangzhou, Guangdong , China
| | - Zhenhui Guo
- Department of MICU, General Hospital of Guangzhou Military Command , Guangzhou, Guangdong , China
| | - Jian Zhou
- Department of ICU, Zhujiang Hospital of Southern Medical University , Guangzhou, Guangdong , China
| | - Qiong Huang
- Department of ICU, Zhujiang Hospital of Southern Medical University , Guangzhou, Guangdong , China
| | - Qitao Yan
- Department of MICU, General Hospital of Guangzhou Military Command , Guangzhou, Guangdong , China
| | - Guiming Chen
- Department of ICU, Zhujiang Hospital of Southern Medical University , Guangzhou, Guangdong , China
| | - Zhanguo Liu
- Department of ICU, Zhujiang Hospital of Southern Medical University , Guangzhou, Guangdong , China
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