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Fanta CC, Tlusty KJ, Pauley SE, Johnson AL, Benjamin GA, Yseth TK, Bunde MM, Pierce PT, Wang S, Vitiello PF, Mays JR. Synthesis and Evaluation of Functionalized Aryl and Biaryl Isothiocyanates Against Human MCF-7 Cells. ChemMedChem 2022; 17:e202200250. [PMID: 35588002 DOI: 10.1002/cmdc.202200250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 05/18/2022] [Indexed: 11/11/2022]
Abstract
Organic isothiocyanates (ITCs) are a class of anticancer agents which naturally result from the enzymatic degradation of glucosinolates produced by Brassica vegetables. Previous studies have demonstrated that the structure of an ITC impacts its potency and mode(s) of anticancer properties, opening the way to preparation and evaluation of synthetic, non-natural ITC analogues. This study describes the preparation of a library of 79 non-natural ITC analogues intended to probe further structure-activity relationships for aryl ITCs and second-generation, functionalized biaryl ITC variants. ITC candidates were subjected to bifurcated evaluation of antiproliferative and antioxidant response element (ARE)-induction capacity against human MCF-7 cells. The results of this study led to the identification of (1) several key structure-activity relationships and (2) lead ITCs demonstrating potent antiproliferative properties.
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Affiliation(s)
- Claire C Fanta
- Augustana University, Chemistry & Biochemistry, UNITED STATES
| | | | - Sarah E Pauley
- Augustana University, Chemistry & Biochemistry, UNITED STATES
| | | | | | - Taylor K Yseth
- Augustana University, Chemistry & Biochemistry, UNITED STATES
| | | | - Paul T Pierce
- The University of Oklahoma Health Sciences Center, Pediatrics, UNITED STATES
| | - Shirley Wang
- The University of Oklahoma Health Sciences Center, Pediatrics, UNITED STATES
| | - Peter F Vitiello
- The University of Oklahoma Health Sciences Center, Pediatrics; Physiology; Biochemistry & Molecular Biology, UNITED STATES
| | - Jared R Mays
- Augustana University, Chemistry & Biochemistry, 2001 S. Summit Ave., 57197, Sioux Falls, UNITED STATES
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2
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Chen D, Shu Y, Chen J, Cao X. Preparation and in vitro bioactive evaluation of cashew-nut proteins hydrolysate as a potential source of anti-allergy peptides. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2021; 58:3780-3789. [PMID: 34471301 DOI: 10.1007/s13197-020-04838-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/07/2020] [Accepted: 10/01/2020] [Indexed: 11/29/2022]
Abstract
This work proposes a novel potential source of antiallergens based on bioactive peptides. Cashew-nut protein hydrolysate with antiallergic activity was prepared from cashew nuts through protease treatment. The change in the antiallergic activity of cashew-nut protein hydrolysate during in vitro simulated digestion was investigated. Cashew-nut protein hydrolysates were prepared through treatment using five different enzymes, namely, Alcalase, Protamex, Neutrase, papain, and bromelin. According to the results of molecular weight distribution, more small molecular weight peptides could be obtained by selecting Alcalase protease than other proteases, and the degree of hydrolysis, trichloroacetic acid-soluble peptide yield and hyaluronidase inhibitory rate of the hydrolysate were 17.0 ± 61.52%, 26.28 ± 0.13% and 62.06% ± 5.07%, which were significantly higher than those of other proteases. Therefore, Alcalase is the most suitable protease for the preparation of cashew-nut hydrolysates. Cashew-nut protein hydrolysates prepared with Alcalase under optimum conditions were fractionated through ultrafiltration. Fractions with low molecular weight exhibited the highest hyaluronidase inhibitory rate (90.57%) among all fractions. The inhibition of hyaluronidase activity during digestion showed that cashew-nut protein hydrolysate III (CPH III) has persistent antiallergic activity. Therefore, CPH III could serve as a potential source of functional peptides with health-promoting effects.
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Affiliation(s)
- Di Chen
- College of Food Science and Engineering, Hainan University, Haikou, 570228 China
| | - Yang Shu
- College of Food Science and Engineering, Hainan University, Haikou, 570228 China
| | - Jian Chen
- College of Food Science and Engineering, Hainan University, Haikou, 570228 China
| | - Xianying Cao
- College of Food Science and Engineering, Hainan University, Haikou, 570228 China
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3
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Liu H, Zhu Y, Wang T, Qi J, Liu X. Enzyme-Site Blocking Combined with Optimization of Molecular Docking for Efficient Discovery of Potential Tyrosinase Specific Inhibitors from Puerariae lobatae Radix. Molecules 2018; 23:molecules23102612. [PMID: 30314397 PMCID: PMC6222779 DOI: 10.3390/molecules23102612] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 10/03/2018] [Accepted: 10/07/2018] [Indexed: 01/06/2023] Open
Abstract
Enzyme inhibitors from natural products are becoming an attractive target for drug discovery and development; however, separating enzyme inhibitors from natural-product extracts is highly complex. In this study, we developed a strategy based on tyrosinase-site blocking ultrafiltration integrated with HPLC-QTOF-MS/MS and optimized molecular docking to screen tyrosinase inhibitors from Puerariae lobatae Radix extract. Under optimized ultrafiltration parameters, we previously used kojic acid, a known tyrosinase inhibitor, to block the tyrosinase active site in order to eliminate false-positive results. Using this strategy, puerarin, mirificin, daidzin and genistinc were successfully identified as potential ligands, and after systematic evaluation by several docking programs, the rank of the identified compounds predicted by computational docking was puerarin > mirificin > kojic acid > daidzin ≈ genistin, which agreed with the results of tyrosinase-inhibition assays. Structure-activity relationships indicated that C-glycosides showed better tyrosinase inhibition as compared with O-glycosides, with reduced inhibition achieved through the addition of glycosyl, which provides ideas about the screen of leading compounds and structural modification.
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Affiliation(s)
- Haichun Liu
- Jiangsu key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
- School of Science, China Pharmaceutical University, Nanjing 211198, China.
| | - Yitian Zhu
- Jiangsu key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Ting Wang
- Jiangsu key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Jin Qi
- Jiangsu key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Xuming Liu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China.
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Anderson RH, Lensing CJ, Forred BJ, Amolins MW, Aegerter CL, Vitiello PF, Mays JR. Differentiating Antiproliferative and Chemopreventive Modes of Activity for Electron-Deficient Aryl Isothiocyanates against Human MCF-7 Cells. ChemMedChem 2018; 13:1695-1710. [PMID: 29924910 PMCID: PMC6105534 DOI: 10.1002/cmdc.201800348] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 06/12/2018] [Indexed: 12/13/2022]
Abstract
The consumption of Brassica vegetables provides beneficial effects through organic isothiocyanates (ITCs), products of the enzymatic hydrolysis of glucosinolate secondary metabolites. The ITC l-sulforaphane (l-SFN) is the principle agent in broccoli that demonstrates several modes of anticancer action. While the anticancer properties of ITCs like l-SFN have been extensively studied and l-SFN has been the subject of multiple human clinical trials, the scope of this work has largely been limited to those derivatives found in nature. Previous studies have demonstrated that structural changes in an ITC can lead to marked differences in a compound's potency to 1) inhibit the growth of cancer cells, and 2) alter cellular transcriptional profiles. This study describes the preparation of a library of non-natural aryl ITCs and the development of a bifurcated screening approach to evaluate the dose- and time-dependence on antiproliferative and chemopreventive properties against human MCF-7 breast cancer cells. Antiproliferative effects were evaluated using a commercial MTS cell viability assay. Chemopreventive properties were evaluated using an antioxidant response element (ARE)-promoted luciferase reporter assay. The results of this study have led to the identification of 1) several key structure-activity relationships and 2) lead ITCs for continued development.
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Affiliation(s)
- Ruthellen H. Anderson
- Department of Chemistry Augustana University 2001 S. Summit Ave. Sioux Falls, SD 57197
| | - Cody J. Lensing
- Department of Chemistry Augustana University 2001 S. Summit Ave. Sioux Falls, SD 57197
| | - Benjamin J. Forred
- Environmental Influences on Health and Disease Group Sanford Research 2301 E. 60 St. N. Sioux Falls, SD 57104
| | - Michael W. Amolins
- Department of Chemistry Augustana University 2001 S. Summit Ave. Sioux Falls, SD 57197
- Environmental Influences on Health and Disease Group Sanford Research 2301 E. 60 St. N. Sioux Falls, SD 57104
| | - Cassandra L. Aegerter
- Environmental Influences on Health and Disease Group Sanford Research 2301 E. 60 St. N. Sioux Falls, SD 57104
| | - Peter F. Vitiello
- Environmental Influences on Health and Disease Group Sanford Research 2301 E. 60 St. N. Sioux Falls, SD 57104
| | - Jared R. Mays
- Department of Chemistry Augustana University 2001 S. Summit Ave. Sioux Falls, SD 57197
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Wu Y, Shen Y, Wu X, Zhu Y, Mupunga J, Bao W, Huang J, Mao J, Liu S, You Y. Hydrolysis before Stir-Frying Increases the Isothiocyanate Content of Broccoli. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:1509-1515. [PMID: 29357241 DOI: 10.1021/acs.jafc.7b05913] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Broccoli is found to be a good source of glucosinolates, which can be hydrolyzed by endogenous myrosinase to obtain chemopreventive isothiocyanates (ITCs); among them, sulforaphane (SF) is the most important agent. Studies have shown that cooking greatly affects the levels of SF and total ITCs in broccoli. However, the stability of these compounds during cooking has been infrequently examined. In this study, we proved that the half-lives of SF and total ITCs during stir-frying were 7.7 and 5.9 min, respectively, while the myrosinase activity decreased by 80% after stir-frying for 3 min; SF and total ITCs were more stable than myrosinase. Thus, the contents of SF and total ITCs decreased during stir-frying largely because myrosinase was destroyed. Subsequently, it was confirmed that compared to direct stir-frying, hydrolysis of glucosinolates in broccoli for 90 min followed by stir-frying increased the SF and total ITC concentration by 2.8 and 2.6 times, respectively. This method provides large quantities of beneficial ITCs even after cooking.
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Affiliation(s)
- Yuanfeng Wu
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology , Hangzhou 310023, Zhejiang, China
- Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety , Guangzhou 510640, Guangdong, China
| | - Yuke Shen
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology , Hangzhou 310023, Zhejiang, China
- Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Farm Products , Hangzhou 310023, Zhejiang, China
| | - Xuping Wu
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology , Hangzhou 310023, Zhejiang, China
- Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Farm Products , Hangzhou 310023, Zhejiang, China
| | - Ye Zhu
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology , Hangzhou 310023, Zhejiang, China
- Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Farm Products , Hangzhou 310023, Zhejiang, China
| | - Jothame Mupunga
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology , Hangzhou 310023, Zhejiang, China
- Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Farm Products , Hangzhou 310023, Zhejiang, China
| | - Wenna Bao
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology , Hangzhou 310023, Zhejiang, China
- Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Farm Products , Hangzhou 310023, Zhejiang, China
| | - Jun Huang
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology , Hangzhou 310023, Zhejiang, China
- Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Farm Products , Hangzhou 310023, Zhejiang, China
| | - Jianwei Mao
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology , Hangzhou 310023, Zhejiang, China
- Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Farm Products , Hangzhou 310023, Zhejiang, China
| | - Shiwang Liu
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology , Hangzhou 310023, Zhejiang, China
- Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Farm Products , Hangzhou 310023, Zhejiang, China
| | - Yuru You
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology , Hangzhou 310023, Zhejiang, China
- Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Farm Products , Hangzhou 310023, Zhejiang, China
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6
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Klingaman CA, Wagner MJ, Brown JR, Klecker JB, Pauley EH, Noldner CJ, Mays JR. Synthesis and spectral characterization of 2,2-diphenylethyl glucosinolate and HPLC-based reaction progress curve data for the enzymatic hydrolysis of glucosinolates by Sinapis alba myrosinase. Data Brief 2016; 10:151-181. [PMID: 27981206 PMCID: PMC5149054 DOI: 10.1016/j.dib.2016.11.086] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 11/17/2016] [Accepted: 11/23/2016] [Indexed: 12/31/2022] Open
Abstract
The data presented in this article are related to the research article, "HPLC-based enzyme kinetics assay for glucosinolate hydrolysis facilitate analysis of systems with both multiple reaction products and thermal enzyme denaturation" (C.K. Klingaman, M.J. Wagner, J.R. Brown, J.B. Klecker, E.H. Pauley, C.J. Noldner, J.R. Mays,) [1]. This data article describes (1) the synthesis and spectral characterization data of a non-natural glucosinolate analogue, 2,2-diphenylethyl glucosinolate, (2) HPLC standardization data for glucosinolate, isothiocyanate, nitrile, and amine analytes, (3) reaction progress curve data for enzymatic hydrolysis reactions with variable substrate concentration, enzyme concentration, buffer pH, and temperature, and (4) normalized initial velocities of hydrolysis/formation for analytes. These data provide a comprehensive description of the enzyme-catalyzed hydrolysis of 2,2-diphenylethyl glucosinolate (5) and glucotropaeolin (6) under widely varied conditions.
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Affiliation(s)
- Chase A Klingaman
- Augustana University, Department of Chemistry, 2001 S. Summit Ave., Sioux Falls, SD 57197, USA
| | - Matthew J Wagner
- Augustana University, Department of Chemistry, 2001 S. Summit Ave., Sioux Falls, SD 57197, USA
| | - Justin R Brown
- Augustana University, Department of Chemistry, 2001 S. Summit Ave., Sioux Falls, SD 57197, USA
| | - John B Klecker
- Augustana University, Department of Chemistry, 2001 S. Summit Ave., Sioux Falls, SD 57197, USA
| | - Ethan H Pauley
- Augustana University, Department of Chemistry, 2001 S. Summit Ave., Sioux Falls, SD 57197, USA
| | - Colin J Noldner
- Augustana University, Department of Chemistry, 2001 S. Summit Ave., Sioux Falls, SD 57197, USA
| | - Jared R Mays
- Augustana University, Department of Chemistry, 2001 S. Summit Ave., Sioux Falls, SD 57197, USA
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