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Kwan ML, Wang Z, Haque R, Lee VS, Roh JM, Ergas IJ, Cannavale KL, Pratt R, Goniewicz M, Loo RK, Aaronson DS, Quesenberry CP, Zhang Y, Ambrosone CB, Kushi LH, Tang L. The Influence of Dietary Isothiocyanates on the Effectiveness of Mitomycin C and Bacillus Calmette-Guérin in Treating Nonmuscle-Invasive Bladder Cancer. J Urol 2024; 212:420-430. [PMID: 38848543 PMCID: PMC11309891 DOI: 10.1097/ju.0000000000004070] [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: 01/06/2024] [Accepted: 05/21/2024] [Indexed: 06/09/2024]
Abstract
PURPOSE Nonmuscle-invasive bladder cancer (NMIBC) has high recurrence rates and is often treated with mitomycin C (MMC) and bacillus Calmette-Guérin (BCG). Their efficacy relies on phase 2 enzyme metabolism and immune response activation, respectively. Dietary isothiocyanates, phytochemicals in cruciferous vegetables, are phase 2 enzyme inducers and immunomodulators, and may impact treatment outcomes. We investigated the modifying effects of cruciferous vegetable and isothiocyanate intake on recurrence risk following MMC or BCG treatment. MATERIALS AND METHODS Self-reported cruciferous vegetable intake, estimated isothiocyanate intake, and urinary isothiocyanate metabolites were collected from 1158 patients with incident NMIBC in the prospective Be-Well Study. Hazard ratios (HRs) and 95% CIs were calculated from Cox proportional hazards regression models for risk of first recurrences, and random effects Cox shared frailty models for multiple recurrences. RESULTS Over median follow-up of 23 months, 343 (30%) recurrences occurred. Receipt of MMC and BCG was associated with decreased risks of first recurrence (MMC: HR = 0.58; 95% CI: 0.46-0.73; BCG: HR = 0.66; 95% CI: 0.49-0.88) and multiple recurrences (MMC: HR = 0.55; 95% CI: 0.44-0.68; BCG: HR = 0.72; 95% CI: 0.55-0.95). Patients receiving BCG and having high intake (>2.4 servings/mo), but not low intake, of raw cruciferous vegetables had reduced risk of recurrence (HR: 0.56; 95% CI: 0.36-0.86; P for interaction = .02) and multiple recurrences (HR: 0.51; 95% CI: 0.34-0.77; P for interaction < .001). The inverse association between MMC receipt and recurrence risk was not modified. CONCLUSIONS For NMIBC patients who receive induction BCG, increasing consumption of raw cruciferous vegetables could be a promising strategy to attenuate recurrence risk.
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Affiliation(s)
- Marilyn L. Kwan
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Zinian Wang
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Reina Haque
- Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, CA
- Kaiser Permanente Bernard J. Tyson School of Medicine, Department of Health Systems Science, Pasadena, CA
| | - Valerie S. Lee
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Janise M. Roh
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Isaac J. Ergas
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Kimberly L. Cannavale
- Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, CA
| | - Rachel Pratt
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Maciej Goniewicz
- Department of Health Behavior, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Ronald K. Loo
- Department of Urology, Kaiser Permanente Downey Medical Center, Downey, CA
| | - David S. Aaronson
- Department of Urology, Kaiser Permanente South San Francisco Medical Center, Oakland, CA
| | | | - Yuesheng Zhang
- Department of Pharmacology and Toxicology, Massey Comprehensive Cancer Center, Virginia Commonwealth University, Richmond, VA
| | - Christine B. Ambrosone
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Lawrence H. Kushi
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Li Tang
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY
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Ligor M, Szultka-Młyńska M, Rafińska K, Cwudzińska A. Comparative Studies of Extracts Obtained from Brassica oleracea L. Plants at Different Stages of Growth by Isolation and Determination of Isothiocyanates: An Assessment of Chemopreventive Properties of Broccoli. Molecules 2024; 29:519. [PMID: 38276596 PMCID: PMC11154519 DOI: 10.3390/molecules29020519] [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: 12/20/2023] [Revised: 01/10/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
The main goal of this work was to develop analytical procedures for the isolation and determination of selected isothiocyanates. As an example, particularly sulforaphane from plants of the Brassicaceae Burnett or Cruciferae Juss family. The applied methodology was mainly based on classical extraction methods and high-performance liquid chromatography coupled with tandem mass spectrometry. Moreover, the effect of temperature on the release of isothiocyanates from plant cells was considered. The cytotoxic activity of the obtained plant extracts against a selected cancer cell line has also been included. The results allow evaluating the usefulness of obtained plant extracts and raw sprouts regarding their content of isothiocyanates-bioactive compounds with chemopreventive properties.
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Affiliation(s)
- Magdalena Ligor
- Chair of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, 7 Gagarina Street, 87-100 Toruń, Poland; (M.S.-M.); (K.R.); (A.C.)
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Grady R, Traustadóttir T, Lagalante AF, Eggler AL. Bioavailable Sulforaphane Quantitation in Plasma by LC-MS/MS Is Enhanced by Blocking Thiols. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:12875-12882. [PMID: 37584212 PMCID: PMC10472501 DOI: 10.1021/acs.jafc.3c01367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 07/19/2023] [Accepted: 07/31/2023] [Indexed: 08/17/2023]
Abstract
Quantifying sulforaphane (SFN) and its thiol metabolites in biological samples using liquid chromatography-tandem mass spectrometry is complicated by SFN's electrophilic nature and the facile dissociation of SFN-thiol conjugates. SFN can be lost during sample preparation due to conjugation with protein thiols, which are precipitated and discarded. We observe that only 32 ± 3% of SFN is recovered 2 h after spiking into fetal bovine serum. The SFN-glutathione conjugate prepared at 10 mM in 0.1% formic acid in water (pH 3) dissociated by approximately 95% to free SFN, highlighting the difficulty in preparing thiol metabolite standards. We used the alkylating agent iodoacetamide (IAA) to both release SFN from protein thiols and force the dissociation of SFN metabolites. This thiol-blocking method increased SFN percent recovery from serum from 32 to 94 ± 5%, with a 4.7 nM method limit of quantitation. Applying the method to clinical samples, SFN concentrations were on average 6 times greater than when IAA was omitted. The IAA thiol-blocking method streamlines the analysis of bioavailable SFN in plasma samples.
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Affiliation(s)
- Rachel
S. Grady
- Department
of Chemistry, Villanova University, Villanova, Pennsylvania 19085, United States
| | - Tinna Traustadóttir
- Department
of Biological Sciences, Northern Arizona
University, Flagstaff, Arizona 86001-5766, United States
| | - Anthony F. Lagalante
- Department
of Chemistry, Villanova University, Villanova, Pennsylvania 19085, United States
| | - Aimee L. Eggler
- Department
of Chemistry, Villanova University, Villanova, Pennsylvania 19085, United States
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Wang Z, Kwan ML, Haque R, Goniewicz M, Pratt R, Lee VS, Roh JM, Ergas IJ, Cannavale KL, Loo RK, Aaronson DS, Quesenberry CP, Zhang Y, Ambrosone CB, Kushi LH, Tang L. Associations of dietary isothiocyanate exposure from cruciferous vegetable consumption with recurrence and progression of non-muscle-invasive bladder cancer: findings from the Be-Well Study. Am J Clin Nutr 2023; 117:1110-1120. [PMID: 37044209 PMCID: PMC10447500 DOI: 10.1016/j.ajcnut.2023.04.006] [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: 08/26/2022] [Revised: 04/03/2023] [Accepted: 04/07/2023] [Indexed: 04/14/2023] Open
Abstract
BACKGROUND High recurrence and progression rates are major clinical challenges for non-muscle-invasive bladder cancer (NMIBC). Dietary isothiocyanates (ITCs), phytochemicals primarily from cruciferous vegetables (CV), show strong anticancer activities in preclinical BC models, yet their effect on NMIBC prognosis remains unknown. OBJECTIVES This study aimed to investigate the associations of dietary ITC exposure at diagnosis with NMIBC recurrence and progression. METHODS The study analyzed 1143 participants from the Be-Well study, a prospective cohort of newly diagnosed NMIBC cases in 2015-2019 with no prior history of BC. Dietary ITC exposure was indicated by self-reported CV intake, estimated ITC intake, urinary metabolites, and plasma ITC-albumin adducts. Cox proportional hazards regression models were used to calculate hazard ratios (HRs) and 95% confidence intervals (CIs) for recurrence and progression, and unconditional logistic regression models were used to calculate odds ratios (ORs) and 95% CIs for delayed and multiple recurrence. RESULTS Over a mean follow-up of 25 mo, 347 (30%) developed recurrence and 77 (6.7%) had disease progression. Despite no significant associations with the overall risk of recurrence, urinary ITC metabolites (OR: 1.96; 95% CI: 1.01, 4.43) and dietary ITC intake (OR: 2.13; 95% CI: 1.03, 4.50) were associated with late recurrence after 12-mo postdiagnosis compared with before 12-mo postdiagnosis. Raw CV intake was associated with reduced odds of having ≥2 recurrences compared with having one (OR: 0.34; 95% CI: 0.16, 0.68). Higher plasma concentrations of ITC-albumin adducts were associated with a reduced risk of progression, including progression to muscle-invasive disease (for benzyl ITC, HR: 0.40; 95% CI: 0.17, 0.93; for phenethyl ITC, HR: 0.40; 95% CI: 0.19, 0.86). CONCLUSIONS Our findings indicate the possible beneficial role of dietary ITCs in NMIBC prognosis. Given the compelling preclinical evidence, increasing dietary ITC exposure with CV intake could be a promising strategy to attenuate recurrence and progression risks in patients with NMIBC.
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Affiliation(s)
- Zinian Wang
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Marilyn L Kwan
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, United States
| | - Reina Haque
- Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, CA, United States; Department of Health Systems Science, Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, CA, United States
| | - Maciej Goniewicz
- Department of Health Behavior, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Rachel Pratt
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Valerie S Lee
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, United States
| | - Janise M Roh
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, United States
| | - Isaac J Ergas
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, United States
| | - Kimberly L Cannavale
- Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, CA, United States
| | - Ronald K Loo
- Department of Urology, Kaiser Permanente Downey Medical Center, Downey, CA, United States
| | - David S Aaronson
- Department of Urology, Kaiser Permanente Oakland Medical Center, Oakland, CA, United States
| | - Charles P Quesenberry
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, United States
| | - Yuesheng Zhang
- Department of Pharmacology and Toxicology, and Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - Christine B Ambrosone
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Lawrence H Kushi
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, United States
| | - Li Tang
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States.
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Haloi P, Chawla S, Konkimalla VB. Thermosensitive smart hydrogel of PEITC ameliorates the therapeutic efficacy in rheumatoid arthritis. Eur J Pharm Sci 2023; 181:106367. [PMID: 36572358 DOI: 10.1016/j.ejps.2022.106367] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 12/22/2022] [Indexed: 12/24/2022]
Abstract
Rheumatoid arthritis (RA) is an autoimmune condition that accompanies chronic inflammation of joints with limited therapeutic options. Phenethyl isothiocyanate (PEITC), a bioactive phytochemical, exerts its chemopreventive, anti-oxidant, and anti-inflammatory activity via the Nrf-2 pathway. However, limited water solubility, short half-life, and instability are reasons for the low bioavailability of PEITC that hampers clinical application. From studies in healthy rats, the performance of PEITC-loaded chitosan/pluronic F-127 smart hydrogel (PH) as a thermosensitive injectable demonstrated adequate thermosensitivity (gel formation), injectability (ease of administration), biocompatibility (with prolonged contact), pharmacokinetics (sustained drug release), and biosafety (nontoxic to major organs). In the adjuvant-induced arthritis (AIA) rat model, PEITC-hydrogel (PH50) injected into the knee joint lowered RA-related symptoms significantly (paw edema and arthritis score). Further, a marked reduction in bone erosion and inflammation-specific biomarkers was observed. Finally, this study demonstrates a smart injectable hydrogel optimally loaded with PEITC which is safe, biocompatible and exhibits significant therapeutic efficacy in RA conditions.
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Affiliation(s)
- Prakash Haloi
- School of Biological Sciences, National Institute of Science Education and Research, HBNI, Jatni, Odisha 752050, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Saurabh Chawla
- School of Biological Sciences, National Institute of Science Education and Research, HBNI, Jatni, Odisha 752050, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - V Badireenath Konkimalla
- School of Biological Sciences, National Institute of Science Education and Research, HBNI, Jatni, Odisha 752050, India; Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India.
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Nwasike C, Purr E, Nagi JS, Mahler GJ, Doiron AL. Incorporation of Targeting Biomolecule Improves Interpolymer Complex-Superparamagnetic Iron Oxide Nanoparticles Attachment to and Activation of T 2 MR Signals in M2 Macrophages. Int J Nanomedicine 2023; 18:473-487. [PMID: 36718192 PMCID: PMC9884053 DOI: 10.2147/ijn.s392567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 01/12/2023] [Indexed: 01/25/2023] Open
Abstract
Introduction Inflammatory diseases are the leading cause of death in the world, accounting for 3 out of 5 deaths. Despite the abundance of diagnostic tools for detection, most screening and diagnostic methods are indirect and insufficient as they are unable to reliably discriminate between high-risk or low-risk stages of inflammatory diseases. Previously, we showed that the selective activation of interpolymer complexed superparamagnetic iron oxide nanoparticles (IPC-SPIOs) under oxidative conditions can be detected by a change in T2 magnetic resonance (MR) contrast. In this work, IPC-SPIOs were further modified by incorporating mannose as a targeting biomolecule to enhance nanoparticle delivery to M2 macrophages at inflammatory sites. Methods Uncoated SPIOs were synthesized via coprecipitation from a mixture of FeCl2 and FeCl3, PEGylated by adsorbing PEG 300 kDa (40 mg/mL in water) to SPIOs (3 mg/mL in water) over 24 hours, and complexed by mixing 0.25 mg/mL aqueous poly(gallol) with 2 mg/mL PEG-SPIOs and adding 1 M of phosphate buffer in a 9:9:2 ratio. Mannose-PEG attachment was accomplished conducting a second complexation of mannose-PEG to IPC-SPIOs. M2 macrophages were treated with 150, 100, and 75 µg/mL of IPC-SPIOs and mannose-IPC-SPIOs to investigate activation of T2 MRI signals. Results and Discussion Surface modification resulted in a slight reduction in ROS scavenging capacity; however, nanoparticle uptake by M2 macrophages increased by over 50%. The higher uptake did not cause a reduction in cellular viability. In fact, mannose-IPC-SPIOs induced significant T2 MR contrast in M2 macrophages compared to IPC-SPIOs and nanoparticles exposed to M1 macrophages. M2 macrophages activated over 30% of mannose-IPC-SPIOs after 6 hours of exposure compared to M1 macrophages and untargeted M2 macrophages. These findings demonstrated that mannose-IPC-SPIOs specifically targeted M2 macrophages and scavenged cellular ROS to activate T2 MR signal, which can be used to detect inflammation.
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Affiliation(s)
- Chukwuazam Nwasike
- Department of Biomedical Engineering, Binghamton University (SUNY), Binghamton, NY, USA
| | - Erin Purr
- Department of Biomedical Engineering, Binghamton University (SUNY), Binghamton, NY, USA
| | - Jaspreet Singh Nagi
- Department of Electrical and Biomedical Engineering, University of Vermont, Burlington, VT, USA
| | - Gretchen J Mahler
- Department of Biomedical Engineering, Binghamton University (SUNY), Binghamton, NY, USA
| | - Amber L Doiron
- Department of Electrical and Biomedical Engineering, University of Vermont, Burlington, VT, USA,Correspondence: Amber L Doiron, Email
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Fabrication and optimization of BSA-PEG-loaded phenethyl isothiocyanate (PEITC) nanoparticles using Box-Behnken design for potential application in subcutaneous infection condition. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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8
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Wang Z, Tu C, Pratt R, Khoury T, Qu J, Fahey JW, McCann SE, Zhang Y, Wu Y, Hutson AD, Ambrosone CB, Edge SB, Cappuccino HH, Takabe K, Young JS, Tang L. A Presurgical-Window Intervention Trial of Isothiocyanate-Rich Broccoli Sprout Extract in Patients with Breast Cancer. Mol Nutr Food Res 2022; 66:e2101094. [PMID: 35475592 PMCID: PMC9925304 DOI: 10.1002/mnfr.202101094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 03/17/2022] [Indexed: 11/09/2022]
Abstract
SCOPE Dietary isothiocyanates (ITCs) from cruciferous vegetables have shown potent anti-breast cancer activities in preclinical models, but their anticancer effects in vivo in breast cancer patients remain elusive. A proof-of-principle, presurgical window of opportunity trial is conducted to assess the anticancer effects of dietary ITCs in breast cancer patients. METHODS AND RESULTS Thirty postmenopausal breast cancer patients are randomly assigned to receive ITC-rich broccoli sprout extract (BSE) (200 µmol ITC per day) or a placebo for 2 weeks. Expression of biomarkers related to ITCs functions are measured in breast cancer tissue specimens at pre- and post-interventions using immunohistochemistry staining. First morning urine samples are collected at both timepoints for proteomic analysis. Overall, the study shows high compliance (100%) and low toxicity (no grade 4 adverse event). Trends of increase in cleaved caspase 3 and tumor-infiltrating lymphocytes (TILs) and trends of decrease in Ki-67 and nuclear to cytoplasm ratio of estrogen receptor (ER)-α are observed in the BSE arm only, consistent with the significantly altered signaling pathways identified in urinary proteomic analysis. CONCLUSIONS Anticancer activities of ITCs are observed in breast cancer patients, supporting the potential beneficial roles of ITC-containing cruciferous vegetables in breast cancer prognosis.
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Affiliation(s)
- Zinian Wang
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Chengjian Tu
- Department of Pharmaceutical Sciences, the State University of New York at Buffalo, Buffalo, NY
| | - Rachel Pratt
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Thaer Khoury
- Department of Pathology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Jun Qu
- Department of Pharmaceutical Sciences, the State University of New York at Buffalo, Buffalo, NY
| | - Jed W. Fahey
- Departments of Medicine & Department of Pharmacology and Molecular Sciences, Johns Hopkins School of Medicine, Baltimore, MD; Department of Nutrition and Food Studies, George Mason University, Fairfax, VA
| | - Susan E. McCann
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Yuesheng Zhang
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Yue Wu
- Department of Urology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Alan D. Hutson
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Christine B. Ambrosone
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Stephen B. Edge
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Helen H. Cappuccino
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Kazuaki Takabe
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Jessica S. Young
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Li Tang
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY
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Kyriakou S, Trafalis DT, Deligiorgi MV, Franco R, Pappa A, Panayiotidis MI. Assessment of Methodological Pipelines for the Determination of Isothiocyanates Derived from Natural Sources. Antioxidants (Basel) 2022; 11:antiox11040642. [PMID: 35453327 PMCID: PMC9029005 DOI: 10.3390/antiox11040642] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/17/2022] [Accepted: 03/22/2022] [Indexed: 12/16/2022] Open
Abstract
Isothiocyanates are biologically active secondary metabolites liberated via enzymatic hydrolysis of their sulfur enriched precursors, glucosinolates, upon tissue plant disruption. The importance of this class of compounds lies in their capacity to induce anti-cancer, anti-microbial, anti-inflammatory, neuroprotective, and other bioactive properties. As such, their isolation from natural sources is of utmost importance. In this review article, an extensive examination of the various parameters (hydrolysis, extraction, and quantification) affecting the isolation of isothiocyanates from naturally-derived sources is presented. Overall, the effective isolation/extraction and quantification of isothiocyanate is strongly associated with their chemical and physicochemical properties, such as polarity-solubility as well as thermal and acidic stability. Furthermore, the successful activation of myrosinase appears to be a major factor affecting the conversion of glucosinolates into active isothiocyanates.
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Affiliation(s)
- Sotiris Kyriakou
- Department of Cancer Genetics, Therapeutics & Ultrastructural Pathology, The Cyprus Institute of Neurology & Genetics, Ayios Dometios, Nicosia 2371, Cyprus;
| | - Dimitrios T. Trafalis
- Laboratory of Pharmacology, Medical School, National & Kapodistrian University of Athens, 11527 Athens, Greece; (D.T.T.); (M.V.D.)
| | - Maria V. Deligiorgi
- Laboratory of Pharmacology, Medical School, National & Kapodistrian University of Athens, 11527 Athens, Greece; (D.T.T.); (M.V.D.)
| | - Rodrigo Franco
- Redox Biology Centre, University of Nebraska-Lincoln, Lincoln, NE 68583, USA;
- Department of Veterinary Medicine & Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE 68583, USA
| | - Aglaia Pappa
- Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece;
| | - Mihalis I. Panayiotidis
- Department of Cancer Genetics, Therapeutics & Ultrastructural Pathology, The Cyprus Institute of Neurology & Genetics, Ayios Dometios, Nicosia 2371, Cyprus;
- Correspondence: ; Tel.: +357-22392626
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Doria E, Buonocore D, Marra A, Bontà V, Gazzola A, Dossena M, Verri M, Calvio C. Bacterial-Assisted Extraction of Bioactive Compounds from Cauliflower. PLANTS (BASEL, SWITZERLAND) 2022; 11:816. [PMID: 35336698 PMCID: PMC8949413 DOI: 10.3390/plants11060816] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/11/2022] [Accepted: 03/17/2022] [Indexed: 06/14/2023]
Abstract
The market for nutraceutical molecules is growing at an impressive pace in all Western countries. A convenient source of bioactive compounds is found in vegetable waste products, and their re-use for the recovery of healthy biomolecules would increase the sustainability of the food production system. However, safe, cheap, and sustainable technologies should be applied for the recovery of these beneficial molecules, avoiding the use of toxic organic solvents or expensive equipment. The soil bacterium Bacillus subtilis is naturally endowed with several enzymes targeting complex vegetable polymers. In this work, a raw bacterial culture supernatant was used to assist in the extraction of bioactives using isothermal pressurization cycles. Besides a wild-type Bacillus subtilis strain, a new strain showing increased secretion of cellulases and xylanases, pivotal enzymes for the digestion of the plant cell wall, was also used. Results indicate that the recovery of compounds correlates with the amount of cellulolytic enzymes applied, demonstrating that the pretreatment with non-purified culture broth effectively promotes the release of bioactives from the vegetable matrix. Therefore, this approach is a valid and sustainable procedure for the recovery of bioactive compounds from food waste.
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Affiliation(s)
- Enrico Doria
- Department of Biology and Biotechnology L. Spallanzani, University of Pavia, 27100 Pavia, Italy; (D.B.); (A.M.); (V.B.); (M.D.); (M.V.); (C.C.)
| | - Daniela Buonocore
- Department of Biology and Biotechnology L. Spallanzani, University of Pavia, 27100 Pavia, Italy; (D.B.); (A.M.); (V.B.); (M.D.); (M.V.); (C.C.)
| | - Antonio Marra
- Department of Biology and Biotechnology L. Spallanzani, University of Pavia, 27100 Pavia, Italy; (D.B.); (A.M.); (V.B.); (M.D.); (M.V.); (C.C.)
| | - Valeria Bontà
- Department of Biology and Biotechnology L. Spallanzani, University of Pavia, 27100 Pavia, Italy; (D.B.); (A.M.); (V.B.); (M.D.); (M.V.); (C.C.)
| | - Andrea Gazzola
- Department of Earth and Environmental Sciences, University of Pavia, 27100 Pavia, Italy;
| | - Maurizia Dossena
- Department of Biology and Biotechnology L. Spallanzani, University of Pavia, 27100 Pavia, Italy; (D.B.); (A.M.); (V.B.); (M.D.); (M.V.); (C.C.)
| | - Manuela Verri
- Department of Biology and Biotechnology L. Spallanzani, University of Pavia, 27100 Pavia, Italy; (D.B.); (A.M.); (V.B.); (M.D.); (M.V.); (C.C.)
| | - Cinzia Calvio
- Department of Biology and Biotechnology L. Spallanzani, University of Pavia, 27100 Pavia, Italy; (D.B.); (A.M.); (V.B.); (M.D.); (M.V.); (C.C.)
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Galádová H, Polozsányi Z, Breier A, Šimkovič M. Sulphoraphane Affinity-Based Chromatography for the Purification of Myrosinase from Lepidium sativum Seeds. Biomolecules 2022; 12:biom12030406. [PMID: 35327598 PMCID: PMC8945721 DOI: 10.3390/biom12030406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/24/2022] [Accepted: 03/02/2022] [Indexed: 02/06/2023] Open
Abstract
Sulforaphane and other natural isothiocyanates released from the respective plant glucosinolates by the plant enzyme myrosinase (β-thioglucoside glucohydrolase) show extensive anticancer and antimicrobial effects. In this study, myrosinase from garden cress (Lepidium sativum) seeds was purified to electrophoretic homogeneity by a fast and easy strategy consisting of fractionation by isoelectric precipitation with ammonium sulphate (AS) and affinity chromatography using sulforaphane (SFN) attached to cellulose resin. The overall purification of enzyme with respect to crude extract was 169-fold and recovery of 37%. Under non-reducing conditions, two protein bands exhibiting myrosinase activity with masses of about 114 and 122 kDa, respectively, and a 58 kDa protein band with no activity were detected by SDS-PAGE and zymography on polyacrylamide gel. MALDI-Tof/Tof of tryptic fragments obtained from the respective protein bands detected sequence motifs homologous to the regions responsible for glycoside-substrate binding and similarities to members of the enzyme subfamilies β-glucosidases and myrosinases GH. The enzyme hydrolyzed both the natural (sinigrin, sinalbin, glucoraphanin) and the synthetic (p-nitrophenol-β-D-glucopyranoside (pNPG)) substrates. The highest catalytic activity of purified enzyme was achieved against sinigrin. The KM and Vmax values of the enzyme for sinigrin were found to be 0.57 mM, and 1.3 mM/s, respectively. The enzyme was strongly activated by 30 μM ascorbic acid. The optimum temperature and pH for enzyme was 50 °C and pH 6.0, respectively. The purified enzyme could be stored at 4 °C and slightly acidic pH for at least 45 days without a significant decrease in specific activity.
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Affiliation(s)
- Helena Galádová
- Faculty of Chemical and Food Technology, Institute of Biochemistry and Microbiology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia; (H.G.); (Z.P.); (A.B.)
| | - Zoltán Polozsányi
- Faculty of Chemical and Food Technology, Institute of Biochemistry and Microbiology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia; (H.G.); (Z.P.); (A.B.)
| | - Albert Breier
- Faculty of Chemical and Food Technology, Institute of Biochemistry and Microbiology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia; (H.G.); (Z.P.); (A.B.)
- Centre of Biosciences, Institute of Molecular Physiology and Genetics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 05 Bratislava, Slovakia
| | - Martin Šimkovič
- Faculty of Chemical and Food Technology, Institute of Biochemistry and Microbiology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia; (H.G.); (Z.P.); (A.B.)
- Correspondence:
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12
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Membrane Vesicles for Nanoencapsulated Sulforaphane Increased Their Anti-Inflammatory Role on an In Vitro Human Macrophage Model. Int J Mol Sci 2022; 23:ijms23041940. [PMID: 35216054 PMCID: PMC8878270 DOI: 10.3390/ijms23041940] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/02/2022] [Accepted: 02/04/2022] [Indexed: 02/08/2023] Open
Abstract
At present, there is a growing interest in finding new non-toxic anti-inflammatory drugs to treat inflammation, which is a key pathology in the development of several diseases with considerable mortality. Sulforaphane (SFN), a bioactive compound derived from Brassica plants, was shown to be promising due to its anti-inflammatory properties and great potential, though its actual clinical use is limited due to its poor stability and bioavailability. In this sense, the use of nanocarriers could solve stability-related problems. In the current study, sulforaphane loaded into membrane vesicles derived from broccoli plants was studied to determine the anti-inflammatory potential in a human-macrophage-like in vitro cell model under both normal and inflammatory conditions. On the one hand, the release of SFN from membrane vesicles was modeled in vitro, and two release phases were stabilized, one faster and the other slower due to the interaction between SFN and membrane proteins, such as aquaporins. Furthermore, the anti-inflammatory action of sulforaphane-loaded membrane vesicles was demonstrated, as a decrease in interleukins crucial for the development of inflammation, such as TNF-α, IL-1β and IL-6, was observed. Furthermore, these results also showed that membrane vesicles by themselves had anti-inflammatory properties, opening the possibility of new lines of research to study these vesicles, not only as carriers but also as active compounds.
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Chen H, Wan J, Chen D. A Novel Targeted Delivery of Valeric Acid Using Liposomal Nanoparticles in Treatment of Lung Cell Carcinoma. J Biomed Nanotechnol 2022; 18:211-217. [PMID: 35180914 DOI: 10.1166/jbn.2022.3235] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
With a high mortality rate, non-small cell lung cancer (NSCLC) is a major challenge for patients and clinicians. The high cost and side effects of chemo-drugs severely influence disease outcome. With advantages of action prolongation and solitary target for embedded drugs, liposomal nanoparticle-based modification was investigated in this study with valeric acid, aimed at exploring its impacts and value on NSCLC. The efficacy comparisons of chemo-drugs (cisplatin, paclitaxel and liposomal nanoparticle-modified valeric acid) were conducted utilizing human NSCLC cell lines, normal lung fibroblasts, pulmonary epithelial cell line, and mouse tumor models. Additionally, the underlying therapeutic mechanisms for this novel liposomal nanoparticle in NSCLC were also explored via analysis of protein changes in tumor tissues. Results showed that, in comparison with conventional chemotherapeutics (cisplatin and paclitaxel), novel liposomal nanoparticle-modified valeric acid effectively retarded the growth of human NSCLC cell lines to a greater extent, and even successfully restrained further progression of tumor tissues in vivo. Furthermore, this novel liposomal nanoparticle-modified valeric acid exhibited lower cytotoxicity towards normal lung cell lines. Additionally, the anti-cancer function of this novel liposomal nanoparticle-modified valeric acid was found to be related to STAT3/Cyclin D1 pathway. The current study confirmed that, compared with cisplatin and paclitaxel, this novel liposomal nanoparticle-modified valeric acid displayed significant therapeutic effect on NSCLC, with lower cytotoxicity to normal cells. It has therefore further promoted research progress and significance on NSCLC research in the clinical management of NSCLC.
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Affiliation(s)
- Hongdou Chen
- Department of Pharmacy, The Affiliated Suqian Hospital of Xuzhou Medical University, Suqian, 223800, Jiangsu, China
| | - Jinxiang Wan
- Department of Functional Section, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, 223001, Jiangsu, China
| | - Douren Chen
- Department of Pharmacy, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, 223001, Jiangsu, China
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14
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Yepes-Molina L, Carvajal M. Nanoencapsulation of sulforaphane in broccoli membrane vesicles and their in vitro antiproliferative activity. PHARMACEUTICAL BIOLOGY 2021; 59:1490-1504. [PMID: 34714214 PMCID: PMC8567929 DOI: 10.1080/13880209.2021.1992450] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 10/04/2021] [Accepted: 10/07/2021] [Indexed: 05/29/2023]
Abstract
CONTEXT The development of nanocarriers of plant origin, such as plant cell membranes, has recently been investigated. Also, plant bioactive compounds as sulforaphane (SFN) from broccoli have recognized antioxidant or anticancer properties. OBJECTIVE To investigate the capacity of membrane vesicles from broccoli (BM-vesicles) to encapsulate SFN and their application in the cancer cell line. MATERIALS AND METHODS Physicochemical analysis was carried out to characterize BM-vesicles through different approaches: dynamic light scattering, transmission electron microscopy, stopped-flow analysis, and proteomic analysis. They were applied at different concentrations (BM-vesicles at 0.04-0.00315% of protein and SFN at 5, 25, and 100 µM) in SK-MEL-28 cells during 24 h for studying cytotoxicity and gene expression. RESULTS The entrapment efficiency was 41%. The anticancer activity tested in cells showed a decrease in proliferation when SFN in BM-vesicles was utilized. Expression patterns when SFN was applied in an encapsulated form showed a reduction of cancer markers and an increase of AQP3. Also, the metabolism of SFN occurred inside of cells, and higher SFN penetrated when it was encapsulated. DISCUSSION The results showed that encapsulated SFN was better absorbed by melanoma cells providing metabolism products and a reduction of cancer molecular markers. Also aquaporin, AQP3 was pointed to as an important marker since it appeared to play a key role in homeostasis due to the importance of water transport in biological processes. CONCLUSION These results indicate that SFN and SFN encapsulated in BM-vesicles have a high activity for the inhibition of melanocyte development. Therefore, BM-vesicles could serve as nanocarriers for drugs.
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Affiliation(s)
- Lucía Yepes-Molina
- Aquaporins Group, Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Murcia, Spain
| | - Micaela Carvajal
- Aquaporins Group, Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Murcia, Spain
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15
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Ugolini L, Cilia G, Pagnotta E, Malaguti L, Capano V, Guerra I, Zavatta L, Albertazzi S, Matteo R, Lazzeri L, Righetti L, Nanetti A. Glucosinolate Bioactivation by Apis mellifera Workers and Its Impact on Nosema ceranae Infection at the Colony Level. Biomolecules 2021; 11:1657. [PMID: 34827655 PMCID: PMC8615805 DOI: 10.3390/biom11111657] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 10/29/2021] [Accepted: 11/06/2021] [Indexed: 12/02/2022] Open
Abstract
The microsporidian fungus Nosema ceranae represents one of the primary bee infection threats worldwide and the antibiotic fumagillin is the only registered product for nosemosis disease control, while few alternatives are, at present, available. Natural bioactive compounds deriving from the glucosinolate-myrosinase system (GSL-MYR) in Brassicaceae plants, mainly isothiocyanates (ITCs), are known for their antimicrobial activity against numerous pathogens and for their health-protective effects in humans. This work explored the use of Brassica nigra and Eruca sativa defatted seed meal (DSM) GSL-containing diets against natural Nosema infection in Apis mellifera colonies. DSM patties from each plant species were obtained by adding DSMs to sugar candy at the concentration of 4% (w/w). The feeding was administered in May to mildly N. ceranae-infected honey bee colonies for four weeks at the dose of 250 g/week. In the treated groups, no significant effects on colony development and bee mortality were observed compared to the negative controls. The N. ceranae abundance showed a slight but significant decrease. Furthermore, the GSL metabolism in bees was investigated, and MYR hydrolytic activity was qualitatively searched in isolated bee midgut and hindgut. Interestingly, MYR activity was detected both in the bees fed DSMs and in the control group where the bees did not receive DSMs. In parallel, ITCs were found in gut tissues from the bees treated with DSMs, corroborating the presence of a MYR-like enzyme capable of hydrolyzing ingested GSLs. On the other hand, GSLs and other GSL hydrolysis products other than ITCs, such as nitriles, were found in honey produced by the treated bees, potentially increasing the health value of the final product for human consumption. The results are indicative of a specific effect on the N. ceranae infection in managed honey bee colonies depending on the GSL activation within the target organ.
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Affiliation(s)
- Luisa Ugolini
- Research Centre for Cereal and Industrial Crops (CREA-CI), Council for Agricultural Research and Agricultural Economics Analysis, Via di Corticella 133, 40128 Bologna, Italy; (L.U.); (L.M.); (R.M.); (L.L.); (L.R.)
| | - Giovanni Cilia
- Research Centre for Agriculture and Environment (CREA-AA), Council for Agricultural Research and Agricultural Economics Analysis, Via di Saliceto 80, 40128 Bologna, Italy; (G.C.); (V.C.); (I.G.); (L.Z.); (S.A.); (A.N.)
| | - Eleonora Pagnotta
- Research Centre for Cereal and Industrial Crops (CREA-CI), Council for Agricultural Research and Agricultural Economics Analysis, Via di Corticella 133, 40128 Bologna, Italy; (L.U.); (L.M.); (R.M.); (L.L.); (L.R.)
| | - Lorena Malaguti
- Research Centre for Cereal and Industrial Crops (CREA-CI), Council for Agricultural Research and Agricultural Economics Analysis, Via di Corticella 133, 40128 Bologna, Italy; (L.U.); (L.M.); (R.M.); (L.L.); (L.R.)
| | - Vittorio Capano
- Research Centre for Agriculture and Environment (CREA-AA), Council for Agricultural Research and Agricultural Economics Analysis, Via di Saliceto 80, 40128 Bologna, Italy; (G.C.); (V.C.); (I.G.); (L.Z.); (S.A.); (A.N.)
| | - Irene Guerra
- Research Centre for Agriculture and Environment (CREA-AA), Council for Agricultural Research and Agricultural Economics Analysis, Via di Saliceto 80, 40128 Bologna, Italy; (G.C.); (V.C.); (I.G.); (L.Z.); (S.A.); (A.N.)
| | - Laura Zavatta
- Research Centre for Agriculture and Environment (CREA-AA), Council for Agricultural Research and Agricultural Economics Analysis, Via di Saliceto 80, 40128 Bologna, Italy; (G.C.); (V.C.); (I.G.); (L.Z.); (S.A.); (A.N.)
| | - Sergio Albertazzi
- Research Centre for Agriculture and Environment (CREA-AA), Council for Agricultural Research and Agricultural Economics Analysis, Via di Saliceto 80, 40128 Bologna, Italy; (G.C.); (V.C.); (I.G.); (L.Z.); (S.A.); (A.N.)
| | - Roberto Matteo
- Research Centre for Cereal and Industrial Crops (CREA-CI), Council for Agricultural Research and Agricultural Economics Analysis, Via di Corticella 133, 40128 Bologna, Italy; (L.U.); (L.M.); (R.M.); (L.L.); (L.R.)
| | - Luca Lazzeri
- Research Centre for Cereal and Industrial Crops (CREA-CI), Council for Agricultural Research and Agricultural Economics Analysis, Via di Corticella 133, 40128 Bologna, Italy; (L.U.); (L.M.); (R.M.); (L.L.); (L.R.)
| | - Laura Righetti
- Research Centre for Cereal and Industrial Crops (CREA-CI), Council for Agricultural Research and Agricultural Economics Analysis, Via di Corticella 133, 40128 Bologna, Italy; (L.U.); (L.M.); (R.M.); (L.L.); (L.R.)
| | - Antonio Nanetti
- Research Centre for Agriculture and Environment (CREA-AA), Council for Agricultural Research and Agricultural Economics Analysis, Via di Saliceto 80, 40128 Bologna, Italy; (G.C.); (V.C.); (I.G.); (L.Z.); (S.A.); (A.N.)
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16
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Ugolini L, Scarafile D, Matteo R, Pagnotta E, Malaguti L, Lazzeri L, Modesto M, Checcucci A, Mattarelli P, Braschi I. Effect of bioactive compounds released from Brassicaceae defatted seed meals on bacterial load in pig manure. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:62353-62367. [PMID: 34191264 PMCID: PMC8589757 DOI: 10.1007/s11356-021-14321-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 05/03/2021] [Indexed: 06/13/2023]
Abstract
Animal manure application to soils is considered to be one of the main cause of antibiotic and bacterial pathogen spread in the environment. Pig livestock, which is the source of one of the most used fertilizer for cultivated land, is also a hotspot for antibiotics and antibiotic-resistant bacteria. Besides harsh chemical and physical sanitization treatments for the abatement of antibiotics and bacterial load in livestock waste, more sustainable and environmentally friendly strategies need to be considered. In this context, the use of natural substances which are proved useful for pest and disease control is currently under exploration for their role in the reduction of bacterial pathogen population. Among these, plants and derived products from the Brassicaceae family, characterized by the presence of a defensive glucosinolate-myrosinase enzymatic system, have been successfully exploited for years in agriculture using the so-called biofumigation technique against crop diseases. Although the application of biofumigation to suppress a range of soil borne pests has been well documented, no studies have been examined to reduce bacterial population in animal waste. In the present study, the release and the antibacterial activity of bioactive compounds deriving from different Brassicaceae defatted seed meals against pathogens and bacterial population in pig manure is addressed. Rapistrum rugosum and Brassica nigra defatted seed meals were found to be the most active products against tested pathogens and able to significantly reduce the bacterial load in the manure.
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Affiliation(s)
- Luisa Ugolini
- CREA Council for Agricultural Research and Economics - Research Centre for Cereal and Industrial Crops, Via di Corticella 133, 40128, Bologna, Italy
| | - Donatella Scarafile
- Department of Agricultural and Food Sciences, Alma Mater Studiorum Università di Bologna, Viale G. Fanin 44, 40127, Bologna, Italy
| | - Roberto Matteo
- CREA Council for Agricultural Research and Economics - Research Centre for Cereal and Industrial Crops, Via di Corticella 133, 40128, Bologna, Italy
| | - Eleonora Pagnotta
- CREA Council for Agricultural Research and Economics - Research Centre for Cereal and Industrial Crops, Via di Corticella 133, 40128, Bologna, Italy
| | - Lorena Malaguti
- CREA Council for Agricultural Research and Economics - Research Centre for Cereal and Industrial Crops, Via di Corticella 133, 40128, Bologna, Italy
| | - Luca Lazzeri
- CREA Council for Agricultural Research and Economics - Research Centre for Cereal and Industrial Crops, Via di Corticella 133, 40128, Bologna, Italy
| | - Monica Modesto
- Department of Agricultural and Food Sciences, Alma Mater Studiorum Università di Bologna, Viale G. Fanin 44, 40127, Bologna, Italy.
| | - Alice Checcucci
- Department of Agricultural and Food Sciences, Alma Mater Studiorum Università di Bologna, Viale G. Fanin 44, 40127, Bologna, Italy
| | - Paola Mattarelli
- Department of Agricultural and Food Sciences, Alma Mater Studiorum Università di Bologna, Viale G. Fanin 44, 40127, Bologna, Italy
| | - Ilaria Braschi
- Department of Agricultural and Food Sciences, Alma Mater Studiorum Università di Bologna, Viale G. Fanin 44, 40127, Bologna, Italy
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17
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Current Methods for the Extraction and Analysis of Isothiocyanates and Indoles in Cruciferous Vegetables. ANALYTICA 2021. [DOI: 10.3390/analytica2040011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Cruciferous vegetables are characterized by the presence of sulfur-containing secondary plant metabolites known as glucosinolates (GLS). The consumption of cruciferous vegetables such as broccoli, cabbage, rocket salad, and cauliflower has been related to the prevention of non-communicable diseases. Their beneficial effects are attributed to the enzymatic degradation products of GLS, e.g., isothiocyanates and indoles. Owing to these properties, there has been a shift in the last few years towards the research of these compounds and a wide range of methods for their extraction and analytical determination have been developed. The aim of this review is to present the sample preparation and extraction procedures of isothiocyanates and indoles from cruciferous vegetables and the analytical methods for their determination. The majority of the references that have been reviewed are from the last decade. Although efforts towards the application of eco-friendly non-conventional extraction methods have been made, the use of conventional solvent extraction is mainly applied. The major analytical techniques employed for the qualitative and quantitative analysis of isothiocyanates and indoles are high-performance liquid chromatography and gas chromatography coupled with or without mass spectrometry detection. Nevertheless, the analytical determination of isothiocyanates presents several problems due to their instability and the absence of chromophores, making the simultaneous determination of isothiocyanates and indoles a challenging task.
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18
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Seed Meals from Brassica nigra and Eruca sativa Control Artificial Nosema ceranae Infections in Apis mellifera. Microorganisms 2021; 9:microorganisms9050949. [PMID: 33924845 PMCID: PMC8146933 DOI: 10.3390/microorganisms9050949] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/23/2021] [Accepted: 04/24/2021] [Indexed: 12/29/2022] Open
Abstract
Nosema ceranae is a widespread parasite responsible for nosemosis Type C in Apis mellifera honey bees, reducing colony survival. The antibiotic fumagillin is the only commercial treatment available, but concerns are emerging about its persistence, safety, and pathogen resistance. The use of natural substances from Brassicaceae defatted seed meals (DSMs) with known antimicrobial and antioxidant properties was explored. Artificially infected bees were fed for 8 days with candies enriched with two concentrations, 2% and 4%, of two DSMs from Brassica nigra and Eruca sativa, containing a known amount of different glucosinolates (GSLs). The food palatability, GSL intake, bee survival, and treatment effects on N. ceranae spore counts were evaluated. Food consumption was higher for the two 2% DSM patties, for both B. nigra and E. sativa, but the GSL intake did not increase by increasing DSM to 4%, due to the resulting lower palatability. The 2% B. nigra patty decreased the bee mortality, while the higher concentration had a toxic effect. The N. ceranae control was significant for all formulates with respect to the untreated control (312,192.6 +/- 14,443.4 s.e.), and was higher for 4% B. nigra (120,366.3 +/- 13,307.1 s.e.). GSL hydrolysis products, the isothiocyanates, were detected and quantified in bee gut tissues. Brassicaceae DSMs showed promising results for their nutraceutical and protective effects on bees artificially infected with N. ceranae spores at the laboratory level. Trials in the field should confirm these results.
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19
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Yang Q, Nakamura T, Seto M, Miyagawa M, Xu W, Zhu B, Munemasa S, Murata Y, Nakamura Y. A multidrug resistance-associated protein inhibitor is a potential enhancer of the benzyl isothiocyanate-induced apoptosis induction in human colorectal cancer cells. J Biochem Mol Toxicol 2021; 35:e22791. [PMID: 33880814 DOI: 10.1002/jbt.22791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 01/15/2021] [Accepted: 04/01/2021] [Indexed: 12/16/2022]
Abstract
The increasing drug efflux through the ATP-binding cassette (ABC) transporters is the most plausible mechanism that mediates resistance to the anticancer phytochemicals, such as benzyl isothiocyanate (BITC), as well as chemotherapy drugs. To identify a potential component to overcome this resistance by combinatory utilization, we focused on multidrug resistance-associated proteins (MRPs) pumping various drug metabolites with glutathione as well as the organic anions. The pharmacological treatment of an MRP inhibitor, MK571, significantly potentiated the BITC-induced antiproliferation, coincided with the enhanced accumulation of BITC and glutathione in human colorectal cancer HCT-116 cells. MK571 also enhanced the apoptosis induction as well as activation of the mitogen-activated protein kinases and caspase-3, whereas it did not affect their basal levels. These results suggested that, since MRPs might play a pivotal role in the BITC efflux, MK571 potentiates the BITC-induced antiproliferation in human colorectal cancer cells through inhibition of the glutathione-dependent BITC efflux.
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Affiliation(s)
- Qifu Yang
- College of Life and Environmental Sciences, Hunan University of Arts and Science, Changde, China.,Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan.,School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Toshiyuki Nakamura
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Masayuki Seto
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Miku Miyagawa
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Wensi Xu
- College of Life and Environmental Sciences, Hunan University of Arts and Science, Changde, China.,Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan.,School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Beiwei Zhu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
| | - Shintaro Munemasa
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Yoshiyuki Murata
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Yoshimasa Nakamura
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
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20
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Wu X, Huang H, Childs H, Wu Y, Yu L, Pehrsson PR. Glucosinolates in Brassica Vegetables: Characterization and Factors That Influence Distribution, Content, and Intake. Annu Rev Food Sci Technol 2021; 12:485-511. [PMID: 33467908 DOI: 10.1146/annurev-food-070620-025744] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Glucosinolates (GSLs) are a class of sulfur-containing compounds found predominantly in the genus Brassica of the Brassicaceae family. Certain edible plants in Brassica, known as Brassica vegetables, are among the most commonly consumed vegetables in the world. Over the last three decades, mounting evidence has suggested an inverse association between consumption of Brassica vegetables and the risk of various types of cancer. The biological activities of Brassica vegetables have been largely attributed to the hydrolytic products of GSLs. GSLs can be hydrolyzed by enzymes; thermal or chemical degradation also breaks down GSLs. There is considerable variation of GSLs in Brassica spp., which are caused by genetic and environmental factors. Most Brassica vegetables are consumed after cooking; common cooking methods have a complex influence on the levels of GSLs. The variationof GSLs in Brassica vegetables and the influence of cooking and processing methods ultimately affect their intake and health-promoting properties.
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Affiliation(s)
- Xianli Wu
- Methods and Application of Food Composition Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, United States Department of Agriculture, Beltsville, Maryland 20705, USA;
| | - Hui Huang
- Department of Nutrition and Food Science, University of Maryland, College Park, Maryland 20742, USA
| | - Holly Childs
- Department of Nutrition and Food Science, University of Maryland, College Park, Maryland 20742, USA
| | - Yanbei Wu
- China-Canada Joint Lab of Food Nutrition and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Liangli Yu
- Department of Nutrition and Food Science, University of Maryland, College Park, Maryland 20742, USA
| | - Pamela R Pehrsson
- Methods and Application of Food Composition Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, United States Department of Agriculture, Beltsville, Maryland 20705, USA;
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21
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Phenethyl Isothiocyanate-Containing Carbomer Gel for Use against Squamous Cell Carcinoma. Pharmaceutics 2021; 13:pharmaceutics13010106. [PMID: 33467626 PMCID: PMC7830123 DOI: 10.3390/pharmaceutics13010106] [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: 12/16/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 12/26/2022] Open
Abstract
It is currently estimated that one in every five Americans will develop skin cancer during their lifetime. Squamous cell carcinoma (SCC) is a common type of skin cancer that can develop due to the skin’s exposure to the sun. Herein, we prepared a topical gel containing 0.5% v/w phenethyl isothiocyanate (PEITC) for the treatment of SCC. PEITC is a naturally occurring isothiocyanate that has been shown to have efficacy against various types of cancer in preclinical studies. We first incorporated PEITC into a carbomer gel. A uniform formulation was prepared, and its viscosity was appropriate for topical application. We then demonstrated the release of PEITC from the gel into and through a Strat-M skin-like membrane. Finally, the effects of the PEITC-containing gel were tested against SCC and normal keratinocytes skin cells in culture, and these results were compared to those obtained for free 5-fluoruracil (5-FU), a commonly used skin-cancer drug. Our results show that a homogeneous PEITC-containing topical gel can be prepared and used to kill SCC cells. Thus, our formulation may be useful for treating SCC in the clinic.
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Mohanty S, Sahoo AK, Konkimalla VB, Pal A, Si SC. Naringin in Combination with Isothiocyanates as Liposomal Formulations Potentiates the Anti-inflammatory Activity in Different Acute and Chronic Animal Models of Rheumatoid Arthritis. ACS OMEGA 2020; 5:28319-28332. [PMID: 33163815 PMCID: PMC7643286 DOI: 10.1021/acsomega.0c04300] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 10/12/2020] [Indexed: 05/16/2023]
Abstract
Combination of drugs is extensively used to treat chronic inflammatory disease. Naringin (NAR), sulforaphane (SFN), and phenethyl isothiocyanate (PEITC) are nutraceuticals with promising anti-inflammatory properties. However, their clinical effectiveness gets hindered because of low aqueous solubility and poor bioavailability. In the current study, two combinations of liposome (NAR + SFN and NAR + PEITC) were prepared and studied thoroughly in different in vivo models of acute and chronic models of inflammation. The encapsulation efficiency of NAR, SFN, and PEITC in the combination liposomal formulations (CLFs) prepared with 1,2-dipalmitoyl-sn-glycero-3-phosphocholine/cholesterol/1,2-distearoyl-sn-glycero-3-phosphoethanolamine -020CN (15:4:1 M ratio) was determined to be 79.8 ± 4.2, 46.5 ± 3.6, and 78.5 ± 3.2%, respectively. The CLFs were characterized by differential scanning calorimetry, X-ray diffraction, dynamic light scattering, and Fourier transform infrared spectroscopy. The physicochemical results showed that the preparations were monodisperse (PDI 0.062-0.248) in water with an average size from 140.5 to 165.6 nm and a zeta potential of -47.3 to -53.3 mV. Dissolution studies in vitro showed a slower release of PEITC (>90%, 6 h) in comparison to that of SFN (3 h). Here, we are the first to report the antiarthritic activity of CLF of NAR + SFN and NAR + PEITC in the Freund's complete adjuvant (FCA)-induced arthritic model. At an intraperitoneal dose (375 + 375 μg/mL) for 3 weeks, the NAR + PEITC liposome significantly improves both % paw edema and arthritic score compared to their free drug combinations in FCA rats. Most importantly, hematological and biochemical results showed improved anemic conditions with significant changes in the SGOT, SGPT, and ALP levels. The ELISA results showed similar trends of increased cytokine (IL-10) and decreased inflammation markers (TNF-α, IL-6, IFN-γ). Histological evaluations showing reduction in cell infiltration, pannus formation, and bone and cartilage destruction further confirm and validate the antiarthritic activity of the CLF. This comprehensive study reveals the effectiveness of combination liposomes of poorly soluble anti-inflammatory molecules (NAR, SFN, PEITC) in the treatment of arthritis.
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Affiliation(s)
- Sangeeta Mohanty
- School of Pharmaceutical
Sciences, Siksha O Anusandhan Deemed to
Be University, Bhubaneswar 751030, India
| | - Ashish Kumar Sahoo
- School
of Biological Sciences, National Institute
of Science Education and Research, HBNI, Jatni, Odisha 752050, India
| | - V. Badireenath Konkimalla
- School
of Biological Sciences, National Institute
of Science Education and Research, HBNI, Jatni, Odisha 752050, India
| | - Abhisek Pal
- Gitam School of Pharmacy, Gitam Deemed to Be University, Hyderabad 502329, India
| | - Sudam Chandra Si
- School of Pharmaceutical
Sciences, Siksha O Anusandhan Deemed to
Be University, Bhubaneswar 751030, India
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23
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Wang Z, Kwan ML, Pratt R, Roh JM, Kushi LH, Danforth KN, Zhang Y, Ambrosone CB, Tang L. Effects of cooking methods on total isothiocyanate yield from cruciferous vegetables. Food Sci Nutr 2020; 8:5673-5682. [PMID: 33133569 PMCID: PMC7590320 DOI: 10.1002/fsn3.1836] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/27/2020] [Accepted: 07/28/2020] [Indexed: 12/29/2022] Open
Abstract
Cruciferous vegetables are primary sources of dietary isothiocyanates (ITCs), a group of phytochemicals showing promising cancer-chemopreventive activities in multiple cancer models. However, no study has thoroughly examined how cooking affects the yields of ITCs from cruciferous vegetables. In this study, a high-performance liquid chromatography (HPLC)-based cyclocondensation assay was performed to examine the ITC yields from four major cruciferous vegetables (broccoli, cabbage, cauliflower, and kale) under six cooking conditions (stir-frying, steaming, microwaving, boiling, stewing, and chip-baking for kale only) and measured the level of ITCs under the raw condition for a comprehensive list of cruciferous vegetables and ITC-containing condiments. A wide range of ITC yields was found across vegetables and condiments. Cooking significantly altered the ITC yields, showing an averagely four-fold increase by lightly cooking (stir-frying, steaming, and microwaving) and a 58% decrease by heavily cooking (boiling, stewing, and chip-baking). These findings will provide the evidence-based cooking guidance on cruciferous vegetable consumption and help better estimate dietary ITC exposure in epidemiologic studies.
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Affiliation(s)
- Zinian Wang
- Department of Cancer Prevention and ControlRoswell Park Comprehensive Cancer CenterBuffaloNYUSA
| | - Marilyn L. Kwan
- Division of ResearchKaiser Permanente Northern CaliforniaOaklandCAUSA
| | - Rachel Pratt
- Department of Cancer Prevention and ControlRoswell Park Comprehensive Cancer CenterBuffaloNYUSA
| | - Janise M. Roh
- Division of ResearchKaiser Permanente Northern CaliforniaOaklandCAUSA
| | - Lawrence H. Kushi
- Division of ResearchKaiser Permanente Northern CaliforniaOaklandCAUSA
| | - Kim N. Danforth
- Department of Research and EvaluationKaiser Permanente Southern CaliforniaPasadenaCAUSA
| | - Yuesheng Zhang
- Department of Pharmacology and TherapeuticsRoswell Park Comprehensive Cancer CenterBuffaloNYUSA
| | - Christine B. Ambrosone
- Department of Cancer Prevention and ControlRoswell Park Comprehensive Cancer CenterBuffaloNYUSA
| | - Li Tang
- Department of Cancer Prevention and ControlRoswell Park Comprehensive Cancer CenterBuffaloNYUSA
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24
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Lu Y, Wang X, Pu H, Lin Y, Li D, Liu SQ, Huang D. Moringin and Its Structural Analogues as Slow H 2S Donors: Their Mechanisms and Bioactivity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:7235-7245. [PMID: 32543184 DOI: 10.1021/acs.jafc.0c02358] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Moringin (rhamnobenzyl isothiocyanate) is a major bioactive compound in moringa seeds, which have been used as a healthy food. However, its bioactivity mechanisms are not well understood. We investigated moringin and its structurally similar analogues, including benzyl isothiocyanate and 4-hydroxylbenzyl isothiocyanate, for their hydrogen sulfide (H2S)-releasing activity triggered by cysteine. These isothiocyanates rapidly formed cysteine adducts, which underwent intramolecular cyclization followed by slowly releasing (a) organic amine and raphanusamic acid and (b) H2S and 2-carbylamino-4,5-dihydrothiazole-4-carboxylic acids. The product distributions are highly dependent on para-substituents on the phenyl group. Moringin has higher cytotoxicity to cancer cells and is a more potent anti-inflammatory agent than benzyl and hydroxybenzyl analogues, while benzyl isothiocyanate is a better antibacterial agent. Taken together, their bioactivity may not be directly related to their H2S donation activity. However, other metabolites alone do not have cytotoxicity and anti-inflammatory activity. These findings indicated that their activity may be the combination effects of different metabolites via competitive pathways as well the para-substituent groups of benzyl ITCs.
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Affiliation(s)
- Yuyun Lu
- Department of Food Science and Technology, Science Drive 2, Faculty of Science, National University of Singapore, 117542 Singapore
| | - Xingyi Wang
- Department of Food Science and Technology, Science Drive 2, Faculty of Science, National University of Singapore, 117542 Singapore
| | - Haoliang Pu
- Department of Food Science and Technology, Science Drive 2, Faculty of Science, National University of Singapore, 117542 Singapore
| | - Yi Lin
- Department of Food Science and Technology, Science Drive 2, Faculty of Science, National University of Singapore, 117542 Singapore
| | - Dan Li
- Department of Food Science and Technology, Science Drive 2, Faculty of Science, National University of Singapore, 117542 Singapore
- National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China
| | - Shao Quan Liu
- Department of Food Science and Technology, Science Drive 2, Faculty of Science, National University of Singapore, 117542 Singapore
- National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China
| | - Dejian Huang
- Department of Food Science and Technology, Science Drive 2, Faculty of Science, National University of Singapore, 117542 Singapore
- National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China
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25
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Ugolini L, Pagnotta E, Matteo R, Malaguti L, Di Francesco A, Lazzeri L. Brassica meal-derived allyl-isothiocyanate postharvest application: influence on strawberry nutraceutical and biochemical parameters. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:4235-4241. [PMID: 30801703 DOI: 10.1002/jsfa.9654] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 02/15/2019] [Accepted: 02/17/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND The antimicrobial activity of allyl-isothiocyanate (AITC) on plant pathogens is well known and has already been demonstrated in the strawberry with respect to Botritis cinerea fungal infection using postharvest biofumigation. In the present study, vapours of 0.08 mg L-1 of Brassica meal-derived AITC were applied to strawberry to assess its effect on fruit nutraceutical and biochemical parameters after 2 days of storage at 20 °C and 90% relative humidity. RESULTS Allyl-isothiocyanate showed no detrimental effect on final strawberry quality, anti-oxidant properties or ascorbic acid content. By contrast, an increased amount of asparagine and a higher ascorbate and glutathione redox potential were registered in the fruit soon after treatment. A reversible glutathione depletion action of AITC was also observed. Finally, total AITC residues in treated strawberry were quantified and a relatively high amount of AITC-adducts was found in fruit tissues. CONCLUSION The findings of the present study not only confirm the high potentiality of biofumigation with respect to extending the shelf-life of fruit, but also provide some insight regarding the mechanisms of action of AITC at the cellular level as a possible elicitor of fruit protective responses. Nevertheless, the nature of the AITC-adducts formed in fruit tissues needs further attention to enable a health and safety assessment of the final fruit. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Luisa Ugolini
- CREA - Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Bologna, Italy
| | - Eleonora Pagnotta
- CREA - Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Bologna, Italy
| | - Roberto Matteo
- CREA - Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Bologna, Italy
| | - Lorena Malaguti
- CREA - Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Bologna, Italy
| | | | - Luca Lazzeri
- CREA - Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Bologna, Italy
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26
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Sun M, Shi Y, Dang UJ, Di Pasqua AJ. Phenethyl Isothiocyanate and Cisplatin Co-Encapsulated in a Liposomal Nanoparticle for Treatment of Non-Small Cell Lung Cancer. Molecules 2019; 24:molecules24040801. [PMID: 30813352 PMCID: PMC6412489 DOI: 10.3390/molecules24040801] [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: 01/03/2019] [Revised: 02/14/2019] [Accepted: 02/19/2019] [Indexed: 11/16/2022] Open
Abstract
Lung cancer is the leading cause of cancer-related death in the Unites States, and approximately 85% of all lung cancers are classified as non-small cell lung cancer (NSCLC), which is extremely difficult to treat and its survival rate is low. After decades of clinical trials, the most effective treatments are still those that implement the first-generation platinum anticancer agent cisplatin (CDDP) in combination with other drugs. We previously demonstrated that the naturally-occurring compound phenethyl isothiocyanate (PEITC) can be used to sensitize NSCLC cells to CDDP. Furthermore, co-encapsulation of PEITC and CDDP in liposomes enhances their toxicity toward NSCLC cells. We here optimize liposomal-PEITC-CDDP, demonstrate the release of PEITC and CDDP from the nanoparticle, and show that liposomal-PEITC-CDDP is much more toxic toward both A549 and H596 human NSCLC cell lines than toward WI-38 and BEAS-2B human normal lung cell lines. Thus, we have prepared an efficacious therapy that has significantly higher toxicity toward cancer cell lines than normal cell lines.
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Affiliation(s)
- Mengwei Sun
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, Binghamton University; Johnson City, NY 13790, USA.
| | - Yi Shi
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, Binghamton University; Johnson City, NY 13790, USA.
| | - Utkarsh J Dang
- Department of Health Outcomes and Administrative Sciences, School of Pharmacy and Pharmaceutical Sciences, Binghamton University; Johnson City, NY 13790, USA.
| | - Anthony J Di Pasqua
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, Binghamton University; Johnson City, NY 13790, USA.
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27
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Vanduchova A, Anzenbacher P, Anzenbacherova E. Isothiocyanate from Broccoli, Sulforaphane, and Its Properties. J Med Food 2019; 22:121-126. [DOI: 10.1089/jmf.2018.0024] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Alena Vanduchova
- Department of Pharmacology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
| | - Pavel Anzenbacher
- Department of Pharmacology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
- Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
| | - Eva Anzenbacherova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
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28
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Johnson IT. Cruciferous Vegetables and Risk of Cancers of the Gastrointestinal Tract. Mol Nutr Food Res 2018; 62:e1701000. [PMID: 29573203 DOI: 10.1002/mnfr.201701000] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 02/09/2018] [Indexed: 12/20/2022]
Abstract
Cancers of the oropharyngeal tissues, oesophagus, stomach, and colorectum are amongst the most common causes of death from cancer throughout the world. Higher consumption of fruits and vegetables is thought to be protective, and cruciferous vegetables are of particular interest because of their unique role as a source of biologically active glucosinolate breakdown products. A literature review of primary studies and meta-analyses indicates that higher consumption of cruciferous vegetables probably reduces the risk of colorectal and gastric cancers by approximately 8% and 19%, respectively. Some studies support the hypothesis that the protective effect against colorectal cancer is modified by genetic polymorphisms of genes regulating the expression of enzymes of the glutathione S-transferase family, but due to contradictory findings the evidence is currently inconclusive. Despite these promising findings, future epidemiological research on the protective effects of cruciferous plants will depend critically upon accurate measurement of dietary exposure, both to the vegetables themselves, and to their active constituents. The development of sensitive chemical assays has facilitated the measurement of urinary excretion of isothiocyanate metabolites as an objective biomarker of intake, but sampling strategies need to be optimized in order to assess long-term exposures at the population level.
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Affiliation(s)
- Ian T Johnson
- Quadram Institute Bioscience, Norwich Research Park, Colney Lane, Norwich, NR4 7UA, United Kingdom
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29
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Han Z, Park A, Su WW. Valorization of papaya fruit waste through low-cost fractionation and microbial conversion of both juice and seed lipids. RSC Adv 2018; 8:27963-27972. [PMID: 35542705 PMCID: PMC9084329 DOI: 10.1039/c8ra05539d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 07/27/2018] [Indexed: 11/21/2022] Open
Abstract
Seed oil from papaya waste was validated as a novel carbon substrate for Yarrowia lipolytica to produce high-value products.
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Affiliation(s)
- Zhenlin Han
- Department of Molecular Biosciences and Bioengineering
- University of Hawaii at Manoa
- Honolulu
- USA
| | - Alex Park
- Department of Molecular Biosciences and Bioengineering
- University of Hawaii at Manoa
- Honolulu
- USA
| | - Wei Wen Su
- Department of Molecular Biosciences and Bioengineering
- University of Hawaii at Manoa
- Honolulu
- USA
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30
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31
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Liu X, Wang Y, Hoeflinger JL, Neme BP, Jeffery EH, Miller MJ. Dietary Broccoli Alters Rat Cecal Microbiota to Improve Glucoraphanin Hydrolysis to Bioactive Isothiocyanates. Nutrients 2017; 9:nu9030262. [PMID: 28287418 PMCID: PMC5372925 DOI: 10.3390/nu9030262] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 03/06/2017] [Accepted: 03/07/2017] [Indexed: 12/24/2022] Open
Abstract
Broccoli consumption brings many health benefits, including reducing the risk of cancer and inflammatory diseases. The objectives of this study were to identify global alterations in the cecal microbiota composition using 16S rRNA sequencing analysis and glucoraphanin (GRP) hydrolysis to isothiocyanates ex vivo by the cecal microbiota, following different broccoli diets. Rats were randomized to consume AIN93G (control) or different broccoli diets; AIN93G plus cooked broccoli, a GRP-rich powder, raw broccoli, or myrosinase-treated cooked broccoli. Feeding raw or cooked broccoli for four days or longer both changed the cecal microbiota composition and caused a greater production of isothiocyanates ex vivo. A more than two-fold increase in NAD(P)H: quinone oxidoreductase 1 activity of the host colon mucosa after feeding cooked broccoli for seven days confirmed the positive health benefits. Further studies revealed that dietary GRP was specifically responsible for the increased microbial GRP hydrolysis ex vivo, whereas changes in the cecal microbial communities were attributed to other broccoli components. Interestingly, a three-day withdrawal from a raw broccoli diet reversed the increased microbial GRP hydrolysis ex vivo. Findings suggest that enhanced conversion of GRP to bioactive isothiocyanates by the cecal microbiota requires four or more days of broccoli consumption and is reversible.
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Affiliation(s)
- Xiaoji Liu
- Department of Food Science and Human Nutrition, University of Illinois, 905 S. Goodwin Ave., Urbana, 61801 IL, USA.
| | - Yanling Wang
- Department of Food Science and Human Nutrition, University of Illinois, 905 S. Goodwin Ave., Urbana, 61801 IL, USA.
| | - Jennifer L Hoeflinger
- Department of Food Science and Human Nutrition, University of Illinois, 905 S. Goodwin Ave., Urbana, 61801 IL, USA.
| | - Bárbara P Neme
- Department of Food Technology, Federal Rural University of Rio de Janeiro, 23.897-000 Seropédica, Brazil.
| | - Elizabeth H Jeffery
- Department of Food Science and Human Nutrition, University of Illinois, 905 S. Goodwin Ave., Urbana, 61801 IL, USA.
| | - Michael J Miller
- Department of Food Science and Human Nutrition, University of Illinois, 905 S. Goodwin Ave., Urbana, 61801 IL, USA.
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32
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Miyata S, Inoue J, Shimizu M, Sato R. Allyl isothiocyanate suppresses the proteolytic activation of sterol regulatory element-binding proteins and de novo fatty acid and cholesterol synthesis. Biosci Biotechnol Biochem 2016; 80:1006-11. [PMID: 26822063 DOI: 10.1080/09168451.2015.1132154] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Sterol regulatory element-binding proteins (SREBPs) are a family of transcription factors that regulate lipid homeostasis by controlling the expression of genes involved in fatty acid and cholesterol synthesis. In this study, we used a stable cell line that expresses a luciferase reporter gene driven by an SRE-containing fatty acid synthase promoter to identify allyl isothiocyanate (AITC), one of the major isothiocyanates in cruciferous vegetables, as a novel SREBP inactivator. We found that AITC downregulated the proteolytic processing of SREBPs and the expression of their target genes in human hepatoma Huh-7 cells. Furthermore, AITC reduced the de novo synthesis of both fatty acids and cholesterol. Our results indicate a novel physiological function of AITC in lipid metabolism regulation.
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Affiliation(s)
- Shingo Miyata
- a Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences , The University of Tokyo , Japan
| | - Jun Inoue
- a Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences , The University of Tokyo , Japan
| | - Makoto Shimizu
- a Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences , The University of Tokyo , Japan
| | - Ryuichiro Sato
- a Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences , The University of Tokyo , Japan
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33
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Franco P, Spinozzi S, Pagnotta E, Lazzeri L, Ugolini L, Camborata C, Roda A. Development of a liquid chromatography–electrospray ionization–tandem mass spectrometry method for the simultaneous analysis of intact glucosinolates and isothiocyanates in Brassicaceae seeds and functional foods. J Chromatogr A 2016; 1428:154-61. [DOI: 10.1016/j.chroma.2015.09.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 07/23/2015] [Accepted: 09/01/2015] [Indexed: 12/16/2022]
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Veeranki OL, Bhattacharya A, Tang L, Marshall JR, Zhang Y. Cruciferous vegetables, isothiocyanates, and prevention of bladder cancer. ACTA ACUST UNITED AC 2015; 1:272-282. [PMID: 26273545 DOI: 10.1007/s40495-015-0024-z] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Approximately 80% of human bladder cancers (BC) are non-muscle invasive when first diagnosed and are usually treated by transurethral tumor resection. But 50-80% of patients experience cancer recurrence. Agents for prevention of primary BC have yet to be identified. Existing prophylactics against BC recurrence, e.g., Bacillus Calmette-Guerin (BCG), have limited efficacy and utility; they engender significant side effects and require urethral catheterization. Many cruciferous vegetables, rich sources of isothiocyanates (ITCs), are commonly consumed by humans. Many ITCs possess promising chemopreventive activities against BC and its recurrence. Moreover, orally ingested ITCs are selectively delivered to bladder via urinary excretion. This review is focused on urinary delivery of ITCs to the bladder, their cellular uptake, their chemopreventive activities in preclinical and epidemiological studies that are particularly relevant to prevention of BC recurrence and progression, and their chemopreventive mechanisms in BC cells and tissues.
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Affiliation(s)
- Omkara L Veeranki
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, New York
| | - Arup Bhattacharya
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, New York
| | - Li Tang
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, New York
| | - James R Marshall
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, New York
| | - Yuesheng Zhang
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, New York
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35
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UAE-HPLC-UV: New Contribution for Fast Determination of Total Isothiocyanates in Brassicaceae Vegetables. J CHEM-NY 2015. [DOI: 10.1155/2015/294601] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Total isothiocyanates content (ITC) is considered a good indicator of bioactive compounds responsible for beneficial effects related to Brassicaceae vegetables.Analytical performance is a critical factor for routine analysis in plant tissues. The extraction technique for isolating phytochemicals from Brassicaceae vegetables is currently the bottleneck of the methodology. The aim of this work was to optimize this step in the analytical process. Fast and less expensive alternative, based on ultrasound-assisted extraction technique (UAE) for direct extraction of GLS into an aqueous phase and further analysis of the hydrolysis product, was optimized. Full factorial (2k) design followed by Central Composite Design (CCD) was used to obtain the optimum extraction conditions. Selected conditions were homogenization time (9 min); ultrasound bath time (5 min); and sample-to-solvent ratio (1 : 5 w/v mg mL−1). The proposed analytical methodology exhibits satisfactory analytical performance in terms of linearity, precision (RSD < 2.4%), and limits of detection (26 nmol g−1 w.w.). The new analytical methodology was applied to cauliflower, cabbage, watercress, and broccoli samples with recoveries higher than 86%. The UAE extraction technique was showed to be efficient for real samples analysis leading to sensible, selective, and reproducible methodology for ITC analysis.
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36
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Choi EJ, Zhang P, Kwon H. Determination of goitrogenic metabolites in the serum of male wistar rat fed structurally different glucosinolates. Toxicol Res 2014; 30:109-16. [PMID: 25071920 PMCID: PMC4112061 DOI: 10.5487/tr.2014.30.2.109] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 06/26/2014] [Accepted: 06/28/2014] [Indexed: 11/20/2022] Open
Abstract
Glucosinolates (GLSs) are abundant in cruciferous vegetables and reported to have anti thyroidal effects. Four GLSs (sinigrin, progoitrin, glucoerucin, and glucotropaeolin) were administered orally to rats, and the breakdown products of GLSs (GLS-BPs: thiocyanate ions, cyanide ions, organic isothiocyanates, organic nitriles, and organic thiocyanates) were measured in serum. Thiocyanate ions were measured by colorimetric method, and cyanide ions were measured with CI-GC-MS. Organic isothiocyanates and their metabolites were measured with the cyclocondensation assay. Organic nitriles and organic thiocyanates were measured with EI-GC-MS. In all treatment groups except for progoitrin, thiocyanate ions were the highest among the five GLS-BPs. In the progoitrin treated group, a high concentration of organic isothiocyanates (goitrin) was detected. In the glucoerucin treated group, a relatively low amount of goitrogenic substances was observed. The metabolism to thiocyanate ions happened within five hours of the administration, and the distribution of GLSs varied with the side chain. GLSs with side chains that can form stable carbocation seemed to facilitate the degradation reaction and produce a large amount of goitrogenic thiocyanate ions. Because goitrogenic metabolites can be formed without myrosinase, the inactivation of myrosinase during cooking would have no effect on the anti-nutritional effect of GLSs in cruciferous vegetables.
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Affiliation(s)
- Eun-Ji Choi
- Department of Food and Nutrition, Seoul National University, Seoul, Korea
| | - Ping Zhang
- Department of Food and Nutrition, Seoul National University, Seoul, Korea
| | - Hoonjeong Kwon
- Department of Food and Nutrition, Seoul National University, Seoul, Korea ; Research Institute of Human Ecology, Seoul National University, Seoul, Korea
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37
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De Nicola GR, Bagatta M, Pagnotta E, Angelino D, Gennari L, Ninfali P, Rollin P, Iori R. Comparison of bioactive phytochemical content and release of isothiocyanates in selected brassica sprouts. Food Chem 2013; 141:297-303. [DOI: 10.1016/j.foodchem.2013.02.102] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 02/19/2013] [Accepted: 02/26/2013] [Indexed: 02/03/2023]
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Tang L, Paonessa JD, Zhang Y, Ambrosone CB, McCann SE. Total isothiocyanate yield from raw cruciferous vegetables commonly consumed in the United States. J Funct Foods 2013; 5:1996-2001. [PMID: 24443655 DOI: 10.1016/j.jff.2013.07.011] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Dietary isothiocyanates are a group of promising chemopreventive agents obtained primarily from cruciferous vegetables. Due to their potent chemopreventive and/or anti-cancer activities, there is a growing interest in assessing dietary isothiocyanate exposure and its impact on human health. Using the HPLC-based cyclocondensation assay, the current study measured total isothiocyanate yield from raw cruciferous vegetables. A total of 73 samples comprising nine types of cruciferous vegetables were analyzed. We observed a wide range of isothiocyanate content across the individual vegetables with an average level of 16.2 μmol/100g wet weight, ranging from 1.5 μmol in raw cauliflower to 61.3 μmol in raw mustard greens. The data represent the maximum amount of isothiocyanates released from the intake of raw cruciferous vegetables. Given that the vegetables assayed in this study include the most commonly consumed cruciferous vegetables in western diets, the data may be particularly useful in estimation of dietary isothiocyanate exposure in these populations. However, due to the variation observed within each vegetable, biomarkers such as urinary isothiocyanate level may be necessary for accurate estimation of individual exposure.
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Affiliation(s)
- Li Tang
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY 14263
| | - Joseph D Paonessa
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY 14263
| | - Yuesheng Zhang
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY 14263
| | - Christine B Ambrosone
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY 14263
| | - Susan E McCann
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY 14263
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39
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Protective effect of Tuscan black cabbage sprout extract against serum lipid increase and perturbations of liver antioxidant and detoxifying enzymes in rats fed a high-fat diet. Br J Nutr 2013; 110:988-97. [PMID: 23433361 DOI: 10.1017/s0007114513000068] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A diet rich in fat is considered a primary risk factor for CVD, cancer and failures in metabolism and endocrine functions. Hyperlipidaemia generates oxidative stress and weakens antioxidant defences as well as metabolic detoxification systems. Brassicaceae are vegetables rich in glucosinolates and isothiocyanates, affecting enzymatic antioxidant as well as phase II enzymes and conceivably counteracting high-fat diet (HFD)-associated pathologies. The protective role of Tuscan black cabbage (a variety of kale) sprout extract (TBCSE) intake against HFD alterations was here studied. The effects on rat hepatic antioxidant as well as detoxifying enzymes, and serum lipid- and body weightlowering properties of TBCSE, were investigated. Feeding the animals with a HFD for 21 d increased body as well as liver weights, and induced hyperlipidaemia, as confirmed by a higher serum lipid profile v. control diet. Daily intragastric administration of TBCSE to HFD-fed rats lowered serum total cholesterol, TAG and NEFA. Body and liver weight gains were also reduced. Antioxidant (catalase, NAD(P)H:quinone reductase, oxidised glutathione reductase and superoxide dismutase) and phase II (glutathione S-transferase and uridine diphosphate glucuronosyl transferase) enzymes were down-regulated by the HFD, while the extract restored normal levels in most groups. Generation of toxic intermediates, and membrane fatty acid composition changes by the HFD, might account for the altered hepatic antioxidant and detoxifying enzyme functions. The recovering effects of TBCSE could be attributed to high flavonoid, phenolic and organosulphur compound content, which possess free-radical-scavenging properties, enhance the antioxidant status and stimulate lipid catabolism. TBCSE intake emerges to be an effective alimentary strategy to counteract the perturbations associated with a diet rich in fat.
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Zhang Y. The molecular basis that unifies the metabolism, cellular uptake and chemopreventive activities of dietary isothiocyanates. Carcinogenesis 2011; 33:2-9. [PMID: 22080571 DOI: 10.1093/carcin/bgr255] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Organic isothiocyanates (ITCs), which are characterized by the presence of an -N=C=S group, are among the most extensively studied cancer chemopreventive agents and show highly promising chemopreventive activities. Numerous studies have shown that ITCs can inhibit both carcinogenesis and cancer growth in a variety of animal models. Many cruciferous vegetables, which are commonly consumed by humans, are rich sources of these compounds. Of particular interest are their high bioavailability, their shared metabolic profile and their ability to target a wide array of cancer-related cellular proteins. This review is focused on discussing the molecular basis of these intriguing properties of ITCs, with a particular emphasis on the concept that cellular uptake and metabolism of ITCs and at least some of their major chemopreventive activities are all initiated through direct reaction of the carbon atom of the -N=C=S group of the ITCs with cysteine sulfhydryl groups of glutathione (GSH) and of proteins. This knowledge deepens our understanding about the biological activities of ITCs and may facilitate further research and development of these compounds for cancer prevention and treatment.
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Affiliation(s)
- Yuesheng Zhang
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY 14263, USA.
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