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Aggarwal KK. A Non-competitive Serpin-Like Thrombin Inhibitor Isolated from Moringa oleifera Exhibit a High Affinity for Thrombin. Protein J 2023:10.1007/s10930-023-10116-6. [PMID: 37149510 DOI: 10.1007/s10930-023-10116-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/13/2023] [Indexed: 05/08/2023]
Abstract
The majority of the clotting factors involved in blood coagulation pathways are serine proteases and thrombin is one of the key serine proteases involved in blood clotting. Many synthetic and chemical drugs targeting these proteases as therapeutics are known. However, they are associated with serious side effects such as bleeding, haemorrhage, edema etc. Serine protease inhibitors from plants have been suggested as one of the potential anticoagulant molecules against thrombosis. In the present work, a direct thrombin inhibitor from Moringa oleifera was isolated, purified and characterized. The homogeneity of the inhibitor is confirmed on native- PAGE. The purified inhibitor (5 µg) showed 63% thrombin inhibition at pH 7.2 at 37 °C. The IC50 value of the isolated inhibitor was determined as 4.23 µg. The inhibitor on SDS-PAGE appeared as a single protein-stained band corresponding to 50 kDa thereby indicating its molecular weight as 50 kDa. Purified thrombin inhibitor (5 µg) showed 12% inhibition of trypsin, and 17% inhibition of chymotrypsin. This suggests more specificity of purified inhibitor towards thrombin. The isolated inhibitor showed a non-competitive mode of inhibition against thrombin as determined by the Dixon plot. The inhibition constant (Ki) was calculated as 4.35 × 10-7 M. The present work reports for the first time a direct thrombin inhibitor from M. oleifera which may be further explored as an antithrombotic drug.
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Affiliation(s)
- Kamal Krishan Aggarwal
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Sector 16-C Dwarka, New Delhi, 110078, India.
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2
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Conti MV, Guzzetti L, Panzeri D, De Giuseppe R, Coccetti P, Labra M, Cena H. Bioactive compounds in legumes: Implications for sustainable nutrition and health in the elderly population. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.02.072] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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3
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Mahesh HB, Prasannakumar MK, Manasa KG, Perumal S, Khedikar Y, Kagale S, Soolanayakanahally RY, Lohithaswa HC, Rao AM, Hittalmani S. Genome, Transcriptome, and Germplasm Sequencing Uncovers Functional Variation in the Warm-Season Grain Legume Horsegram Macrotyloma uniflorum (Lam.) Verdc. FRONTIERS IN PLANT SCIENCE 2021; 12:758119. [PMID: 34733308 PMCID: PMC8558620 DOI: 10.3389/fpls.2021.758119] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 09/21/2021] [Indexed: 06/07/2023]
Abstract
Horsegram is a grain legume with excellent nutritional and remedial properties and good climate resilience, able to adapt to harsh environmental conditions. Here, we used a combination of short- and long-read sequencing technologies to generate a genome sequence of 279.12Mb, covering 83.53% of the estimated total size of the horsegram genome, and we annotated 24,521 genes. De novo prediction of DNA repeats showed that approximately 25.04% of the horsegram genome was made up of repetitive sequences, the lowest among the legume genomes sequenced so far. The major transcription factors identified in the horsegram genome were bHLH, ERF, C2H2, WRKY, NAC, MYB, and bZIP, suggesting that horsegram is resistant to drought. Interestingly, the genome is abundant in Bowman-Birk protease inhibitors (BBIs), which can be used as a functional food ingredient. The results of maximum likelihood phylogenetic and estimated synonymous substitution analyses suggested that horsegram is closely related to the common bean and diverged approximately 10.17 million years ago. The double-digested restriction associated DNA (ddRAD) sequencing of 40 germplasms allowed us to identify 3,942 high-quality SNPs in the horsegram genome. A genome-wide association study with powdery mildew identified 10 significant associations similar to the MLO and RPW8.2 genes. The reference genome and other genomic information presented in this study will be of great value to horsegram breeding programs. In addition, keeping the increasing demand for food with nutraceutical values in view, these genomic data provide opportunities to explore the possibility of horsegram for use as a source of food and nutraceuticals.
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Affiliation(s)
- H. B. Mahesh
- Department of Genetics and Plant Breeding, College of Agriculture, Mandya, University of Agricultural Sciences, Bengaluru, India
| | - M. K. Prasannakumar
- Department of Plant Pathology, University of Agricultural Sciences, Bengaluru, India
| | - K. G. Manasa
- Department of Genetics and Plant Breeding, College of Agriculture, Mandya, University of Agricultural Sciences, Bengaluru, India
| | - Sampath Perumal
- Saskatoon Research and Development Centre, Agriculture and Agri-Food Canada, Saskatoon, SK, Canada
- Global Institute for Food Security, University of Saskatchewan, Saskatoon, SK, Canada
| | - Yogendra Khedikar
- Saskatoon Research and Development Centre, Agriculture and Agri-Food Canada, Saskatoon, SK, Canada
| | | | | | - H. C. Lohithaswa
- Department of Genetics and Plant Breeding, College of Agriculture, Mandya, University of Agricultural Sciences, Bengaluru, India
| | - Annabathula Mohan Rao
- Department of Genetics and Plant Breeding, College of Agriculture, GKVK, University of Agricultural Sciences, Bengaluru, India
| | - Shailaja Hittalmani
- Department of Genetics and Plant Breeding, College of Agriculture, GKVK, University of Agricultural Sciences, Bengaluru, India
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4
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Harish BS, Raja MRC, Mahapatra SK, Uppuluri KB. Production Enhancement of an Anticoagulant Trypsin Inhibitor from Oceanimonas sp. BPMS22 and Its Anti-cancer Activity. Int J Pept Res Ther 2021. [DOI: 10.1007/s10989-020-10078-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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5
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Shaghaghi Z, Alvandi M, Nosrati S, Hadei SK. Potential utility of peptides against damage induced by ionizing radiation. Future Oncol 2021; 17:1219-1235. [PMID: 33593084 DOI: 10.2217/fon-2020-0577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Radioprotection is the process whereby biological systems are aided against undesirable radiation hazards. Primitive radioprotectors suffered from either having crucial side effects or low efficacy in clinical applications. Therefore, the search for less toxic but more capable radioprotectants has continued for decades. Peptides have been investigated as radioprotectants in a variety of preclinical models both in vitro and in vivo. Peptides exert their influence through scavenging free radicals, modifying cell signaling and inhibiting cell apoptosis. Demonstrating potential in vivo properties, peptide radiation countermeasures might find enough credit for use in humans in the future. This article reviews the potential therapeutic value of currently known radioprotective peptides and attempts to provide a comprehensive source for further scientific research in this area.
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Affiliation(s)
- Zahra Shaghaghi
- Department of Nuclear Medicine and Molecular Imaging, Clinical Development Research Unit of Farshchian Heart Center, Hamadan University of Medical Sciences, Hamadan, 517839131, Iran
| | - Maryam Alvandi
- Department of Nuclear Medicine and Molecular Imaging, Clinical Development Research Unit of Farshchian Heart Center, Hamadan University of Medical Sciences, Hamadan, 517839131, Iran
| | - Sahar Nosrati
- Institute of Nuclear Chemistry and Technology, Dorona 16 Str, 03-195, Warsaw, Poland
| | - Seyed Kamaledin Hadei
- Department of Radiology, School of Medicine, Farshchian Cardiovascular Subspecialty Medical Center, Hamadan University of Medical Sciences, Hamadan, 6517839131, Iran
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6
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Gitlin-Domagalska A, Maciejewska A, Dębowski D. Bowman-Birk Inhibitors: Insights into Family of Multifunctional Proteins and Peptides with Potential Therapeutical Applications. Pharmaceuticals (Basel) 2020; 13:E421. [PMID: 33255583 PMCID: PMC7760496 DOI: 10.3390/ph13120421] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/13/2020] [Accepted: 11/23/2020] [Indexed: 02/07/2023] Open
Abstract
Bowman-Birk inhibitors (BBIs) are found primarily in seeds of legumes and in cereal grains. These canonical inhibitors share a highly conserved nine-amino acids binding loop motif CTP1SXPPXC (where P1 is the inhibitory active site, while X stands for various amino acids). They are natural controllers of plants' endogenous proteases, but they are also inhibitors of exogenous proteases present in microbials and insects. They are considered as plants' protective agents, as their elevated levels are observed during injury, presence of pathogens, or abiotic stress, i.a. Similar properties are observed for peptides isolated from amphibians' skin containing 11-amino acids disulfide-bridged loop CWTP1SXPPXPC. They are classified as Bowman-Birk like trypsin inhibitors (BBLTIs). These inhibitors are resistant to proteolysis and not toxic, and they are reported to be beneficial in the treatment of various pathological states. In this review, we summarize up-to-date research results regarding BBIs' and BBLTIs' inhibitory activity, immunomodulatory and anti-inflammatory activity, antimicrobial and insecticidal strength, as well as chemopreventive properties.
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Affiliation(s)
| | | | - Dawid Dębowski
- Department of Molecular Biochemistry, Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland; (A.G.-D.); (A.M.)
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Identification and Target-Modification of SL-BBI: A Novel Bowman-Birk Type Trypsin Inhibitor from Sylvirana latouchii. Biomolecules 2020; 10:biom10091254. [PMID: 32872343 PMCID: PMC7565067 DOI: 10.3390/biom10091254] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/24/2020] [Accepted: 08/27/2020] [Indexed: 01/10/2023] Open
Abstract
The peptides from the ranacyclin family share similar active disulphide loop with plant-derived Bowman-Birk type inhibitors, some of which have the dual activities of trypsin inhibition and antimicrobial. Herein, a novel Bowman-Birk type trypsin inhibitor of the ranacyclin family was identified from the skin secretion of broad-folded frog (Sylvirana latouchii) by molecular cloning method and named as SL-BBI. After chemical synthesis, it was proved to be a potent inhibitor of trypsin with a Ki value of 230.5 nM and showed weak antimicrobial activity against tested microorganisms. Modified analogue K-SL maintains the original inhibitory activity with a Ki value of 77.27 nM while enhancing the antimicrobial activity. After the substitution of active P1 site to phenylalanine and P2' site to isoleucine, F-SL regenerated its inhibitory activity on chymotrypsin with a Ki value of 309.3 nM and exhibited antiproliferative effects on PC-3, MCF-7 and a series of non-small cell lung cancer cell lines without cell membrane damage. The affinity of F-SL for the β subunits in the yeast 20S proteasome showed by molecular docking simulations enriched the understanding of the possible action mode of Bowman-Birk type inhibitors. Further mechanistic studies have shown that F-SL can activate caspase 3/7 in H157 cells and induce apoptosis, which means it has the potential to become an anticancer agent.
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8
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Patriota LLDS, Ramos DDBM, Dos Santos ACLA, Silva YA, Gama E Silva M, Torres DJL, Procópio TF, de Oliveira AM, Coelho LCBB, Pontual EV, da Silva DCN, Paiva PMG, de Lorena VMB, Mendes RL, Napoleão TH. Antitumor activity of Moringa oleifera (drumstick tree) flower trypsin inhibitor (MoFTI) in sarcoma 180-bearing mice. Food Chem Toxicol 2020; 145:111691. [PMID: 32810586 DOI: 10.1016/j.fct.2020.111691] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/31/2020] [Accepted: 08/11/2020] [Indexed: 10/23/2022]
Abstract
The plant Moringa oleifera is used as food and medicine. M. oleifera flowers are source of protein, fiber, and antioxidants, and are used to treat inflammation and tumors. This work evaluated the antitumor activity of the M. oleifera flower trypsin inhibitor (MoFTI) in sarcoma 180-bearing mice. Swiss female mice were inoculated with sarcoma 180 cells. Seven days later, the animals were treated intraperitoneally for 1 week with daily doses of PBS (control) or MoFTI (15 or 30 mg/kg). For toxicity assessment, water and food consumption, body and organ weights, histological alterations, and blood hematological and biochemical parameters were measured. Treatment with MoFTI caused pronounced reduction (90.1%-97.9%) in tumor weight. The tumors of treated animals had a reduced number of secondary vessels and lower gauge of the primary vessels compared to the control. No significant changes were observed in water and food consumption or in body and organ weights. Histopathological analysis did not indicate damage to the liver, kidneys, and spleen. In conclusion, MoFTI showed antitumor potential, with no clear evidence of toxicity.
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Affiliation(s)
| | | | | | - Yasmym Araújo Silva
- Laboratório de Oncologia Experimental, Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brazil
| | - Mariana Gama E Silva
- Laboratório de Oncologia Experimental, Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brazil
| | - Diego José Lira Torres
- Departamento de Imunologia, Instituto Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, Pernambuco, Brazil
| | - Thamara Figueiredo Procópio
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Alisson Macário de Oliveira
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | | | - Emmanuel Viana Pontual
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | | | - Patrícia Maria Guedes Paiva
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | | | - Rosemairy Luciane Mendes
- Laboratório de Oncologia Experimental, Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brazil
| | - Thiago Henrique Napoleão
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil.
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9
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Nacht AS, Ferrari R, Zaurin R, Scabia V, Carbonell-Caballero J, Le Dily F, Quilez J, Leopoldi A, Brisken C, Beato M, Vicent GP. C/EBPα mediates the growth inhibitory effect of progestins on breast cancer cells. EMBO J 2019; 38:e101426. [PMID: 31373033 DOI: 10.15252/embj.2018101426] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 06/21/2019] [Accepted: 06/24/2019] [Indexed: 01/19/2023] Open
Abstract
Steroid hormones are key gene regulators in breast cancer cells. While estrogens stimulate cell proliferation, progestins activate a single cell cycle followed by proliferation arrest. Here, we use biochemical and genome-wide approaches to show that progestins achieve this effect via a functional crosstalk with C/EBPα. Using ChIP-seq, we identify around 1,000 sites where C/EBPα binding precedes and helps binding of progesterone receptor (PR) in response to hormone. These regions exhibit epigenetic marks of active enhancers, and C/EBPα maintains an open chromatin conformation that facilitates loading of ligand-activated PR. Prior to hormone exposure, C/EBPα favors promoter-enhancer contacts that assure hormonal regulation of key genes involved in cell proliferation by facilitating binding of RAD21, YY1, and the Mediator complex. Knockdown of C/EBPα disrupts enhancer-promoter contacts and decreases the presence of these architectural proteins, highlighting its key role in 3D chromatin looping. Thus, C/EBPα fulfills a previously unknown function as a potential growth modulator in hormone-dependent breast cancer.
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Affiliation(s)
- A Silvina Nacht
- Center for Genomic Regulation (CRG), Barcelona, Spain.,Barcelona Institute for Science and Technology (BIST), Barcelona, Spain
| | - Roberto Ferrari
- Center for Genomic Regulation (CRG), Barcelona, Spain.,Barcelona Institute for Science and Technology (BIST), Barcelona, Spain
| | - Roser Zaurin
- Center for Genomic Regulation (CRG), Barcelona, Spain.,Barcelona Institute for Science and Technology (BIST), Barcelona, Spain
| | - Valentina Scabia
- Swiss Institute for Experimental Cancer Research, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - José Carbonell-Caballero
- Center for Genomic Regulation (CRG), Barcelona, Spain.,Barcelona Institute for Science and Technology (BIST), Barcelona, Spain
| | - Francois Le Dily
- Center for Genomic Regulation (CRG), Barcelona, Spain.,Barcelona Institute for Science and Technology (BIST), Barcelona, Spain
| | - Javier Quilez
- Center for Genomic Regulation (CRG), Barcelona, Spain.,Barcelona Institute for Science and Technology (BIST), Barcelona, Spain
| | - Alexandra Leopoldi
- Center for Genomic Regulation (CRG), Barcelona, Spain.,Barcelona Institute for Science and Technology (BIST), Barcelona, Spain
| | - Cathrin Brisken
- Swiss Institute for Experimental Cancer Research, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Miguel Beato
- Center for Genomic Regulation (CRG), Barcelona, Spain.,Barcelona Institute for Science and Technology (BIST), Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Guillermo P Vicent
- Center for Genomic Regulation (CRG), Barcelona, Spain.,Barcelona Institute for Science and Technology (BIST), Barcelona, Spain
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10
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ÇAKIR Ö, UÇARLI C, TARHAN Ç, PEKMEZ M, TURGUT-KARA N. Nutritional and health benefits of legumes and their distinctive genomic properties. FOOD SCIENCE AND TECHNOLOGY 2019. [DOI: 10.1590/fst.42117] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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11
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Zhu B, He H, Hou T. A Comprehensive Review of Corn Protein-derived Bioactive Peptides: Production, Characterization, Bioactivities, and Transport Pathways. Compr Rev Food Sci Food Saf 2018; 18:329-345. [DOI: 10.1111/1541-4337.12411] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 10/29/2018] [Accepted: 10/29/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Biyang Zhu
- College of Food Science and Technology; Huazhong Agricultural Univ.; Wuhan 430070 China
- Key Lab of Environment Correlative Dietology (Huazhong Agricultural Univ.); Ministry of Education; Wuhan 43000 China
| | - Hui He
- College of Food Science and Technology; Huazhong Agricultural Univ.; Wuhan 430070 China
- Key Lab of Environment Correlative Dietology (Huazhong Agricultural Univ.); Ministry of Education; Wuhan 43000 China
| | - Tao Hou
- College of Food Science and Technology; Huazhong Agricultural Univ.; Wuhan 430070 China
- Key Lab of Environment Correlative Dietology (Huazhong Agricultural Univ.); Ministry of Education; Wuhan 43000 China
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12
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A Bowman-Birk type chymotrypsin inhibitor peptide from the amphibian, Hylarana erythraea. Sci Rep 2018; 8:5851. [PMID: 29643444 PMCID: PMC5895817 DOI: 10.1038/s41598-018-24206-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 03/28/2018] [Indexed: 01/10/2023] Open
Abstract
The first amphibian skin secretion-derived Bowman-Birk type chymotrypsin inhibitor is described here from the Asian green frog, Hylarana erythraea, and was identified by use of molecular cloning and tandem mass spectrometric amino acid sequencing. It was named Hylarana erythraea chymotrypsin inhibitor (HECI) and in addition to inhibition of chymotrypsin (Ki = 3.92 ± 0.35 μM), the peptide also inhibited the 20 S proteasome (Ki = 8.55 ± 1.84 μM). Additionally, an analogue of HECI, named K9-HECI, in which Phe9 was substituted by Lys9 at the P1 position, was functional as a trypsin inhibitor. Both peptides exhibited anti-proliferation activity against the human cancer cell lines, H157, PC-3 and MCF-7, up to a concentration of 1 mM and possessed a low degree of cytotoxicity on normal cells, HMEC-1. However, HECI exhibited higher anti-proliferative potency against H157. The results indicate that HECI, inhibiting chymotryptic-like activity of proteasome, could provide new insights in treatment of lung cancer.
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Are Soy Products Effective in DMD? PLOS CURRENTS 2018; 10. [PMID: 29707417 PMCID: PMC5889298 DOI: 10.1371/currents.md.0439d464ca3344340ac9a7182a6ea28a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
INTRODUCTION: In addition to their nutritional value, processed soy bean extracts contain several activities with potential therapeutic benefits. These include anti-oxidants, and tyrosine kinase and protease inhibitory activity. There are also anecdotal reports of health benefits of soy products in alleviating DMD symptoms. METHODS: Mdx mice were fed a control soy-free diet or the same diet containing either a proprietary soy preparation (Haelan 951), purified soy isoflavones, purified Bowman-Birk protease inhibitor or a combination of isoflavones and Bowman-Birk inhibitor. Mice were tested for their wire hanging ability at the start of the diet regimen and every 4 weeks until week 12 of treatment. RESULTS AND DISCUSSION: The diet containing Bowman-Birk inhibitor was the only one to show a significant and sustained improvement over the 12 weeks of the study. All other dietary additions; Haelan 951, isoflavones and isoflavones with Bowman-Birk inhibitor, were not significantly different from each other or from control. The effectiveness of Bowman-Birk inhibitor in mdx mice clearly warrants further study.
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Bendre AD, Ramasamy S, Suresh CG. Analysis of Kunitz inhibitors from plants for comprehensive structural and functional insights. Int J Biol Macromol 2018; 113:933-943. [PMID: 29499268 DOI: 10.1016/j.ijbiomac.2018.02.148] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 02/21/2018] [Accepted: 02/23/2018] [Indexed: 01/11/2023]
Abstract
Legume Kunitz type trypsin inhibitor (KTI) family is one of the most versatile families of proteins. A typical KTI features a single peptide folded in β-trefoil manner, with the molecular weight about 20-22kDa and two disulphide bonds. The members are known to inhibit a wide range of serpins proteases at the same time many of them possess unique features. Copaifera langsdorffii Trypsin inhibitor (CTI) has a β-trefoil fold made up of two non-covalently bound polypeptide chains with only a single disulfide bridge. Delonix regia Trypsin inhibitor (DrTI) has one amino acid insertion between P1 and P2 of the reactive site distorting its conformation. Bauhinia bauhinioides Cruzipain inhibitor (BbCI) has a conservative β-trefoil fold but lacks disulfide bonds. Such subtle differences in structures make Kunitz inhibitors different from other inhibitor families. Most of the studies on these inhibitors are focused towards their proposed role in defense from insect pests and wounding but their exact physiological role in nature is still uncharted. Thus, it would be very interesting to closely analyze the structural details of these inhibitors in order to ascertain their biological role and other fascinating applications.
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Affiliation(s)
- Ameya D Bendre
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Pune 411008, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-NCL campus, Pune 411008, India
| | - Sureshkumar Ramasamy
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Pune 411008, India.
| | - C G Suresh
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Pune 411008, India
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15
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Cicero AFG, Fogacci F, Colletti A. Potential role of bioactive peptides in prevention and treatment of chronic diseases: a narrative review. Br J Pharmacol 2017; 174:1378-1394. [PMID: 27572703 PMCID: PMC5429326 DOI: 10.1111/bph.13608] [Citation(s) in RCA: 184] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Revised: 08/12/2016] [Accepted: 08/18/2016] [Indexed: 12/24/2022] Open
Abstract
In the past few years, increasing interest has been directed to bioactive peptides of animal and plant origin: in particular, researchers have focused their attention on their mechanisms of action and potential role in the prevention and treatment of cancer, cardiovascular and infective diseases. We have developed a search strategy to identify these studies in PubMed (January 1980 to May 2016); particularly those papers presenting comprehensive reviews or meta-analyses, plus in vitro and in vivo studies and clinical trials on those bioactive peptides that affect cardiovascular diseases, immunity or cancer, or have antioxidant, anti-inflammatory and antimicrobial effects. In this review we have mostly focused on evidence-based healthy properties of bioactive peptides from different sources. Bioactive peptides derived from fish, milk, meat and plants have demonstrated significant antihypertensive and lipid-lowering activity in clinical trials. Many bioactive peptides show selective cytotoxic activity against a wide range of cancer cell lines in vitro and in vivo, whereas others have immunomodulatory and antimicrobial effects. Furthermore, some peptides exert anti-inflammatory and antioxidant activity, which could aid in the prevention of chronic diseases. However, clinical evidence is at an early stage, and there is a need for solid pharmacokinetic data and for standardized extraction procedures. Further studies on animals and randomized clinical trials are required to confirm these effects, and enable these peptides to be used as preventive or therapeutic treatments. LINKED ARTICLES This article is part of a themed section on Principles of Pharmacological Research of Nutraceuticals. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.11/issuetoc.
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Affiliation(s)
- Arrigo F G Cicero
- Atherosclerosis and Metabolic Diseases Research Center, Medicine and Surgery DeptartmentAlma Mater Studiorum, University of BolognaBolognaItaly
| | - Federica Fogacci
- Atherosclerosis and Metabolic Diseases Research Center, Medicine and Surgery DeptartmentAlma Mater Studiorum, University of BolognaBolognaItaly
| | - Alessandro Colletti
- Atherosclerosis and Metabolic Diseases Research Center, Medicine and Surgery DeptartmentAlma Mater Studiorum, University of BolognaBolognaItaly
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16
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Anti-angiogenic potential of trypsin inhibitor purified from Cucumis melo seeds: Homology modeling and molecular docking perspective. Int J Biol Macromol 2017; 96:118-128. [DOI: 10.1016/j.ijbiomac.2016.12.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Revised: 12/07/2016] [Accepted: 12/09/2016] [Indexed: 12/15/2022]
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17
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Dębowski D, Cichorek M, Lubos M, Wójcik S, Łęgowska A, Rolka K. Noncovalent inhibitors of human 20S and 26S proteasome based on trypsin inhibitor SFTI-1. Biopolymers 2017; 106:685-96. [PMID: 27258473 DOI: 10.1002/bip.22886] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 04/29/2016] [Accepted: 05/31/2016] [Indexed: 02/02/2023]
Abstract
Sunflower trypsin inhibitor (SFTI-1) is recognized as an attractive scaffold to designed potent inhibitors of various proteases. We have recently found that its analogues inhibit noncovalently both human and yeast 20S proteasomes. Here, a set of novel and more potent in vitro inhibitors is presented. The inhibitory potency of the peptides was assessed with human 20S proteasome in the presence or absence of sodium dodecyl sulfate and with human 26 proteasome. Their antiproliferative action against tumor (human melanoma cells A375) and normal cells (46 BR.1N human fibroblasts and HaCaT keratinocytes) was determined. The selected fluoresceine-labeled inhibitors were able to internalize into A375 cells and were sometimes present as foci in the cells. © 2016 Wiley Periodicals, Inc. Biopolymers (Pept Sci) 106: 685-696, 2016.
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Affiliation(s)
- Dawid Dębowski
- Department of Biochemistry, Faculty of Chemistry, University of Gdańsk, Gdańsk, Poland.
| | | | - Marta Lubos
- Department of Biochemistry, Faculty of Chemistry, University of Gdańsk, Gdańsk, Poland
| | - Sławomir Wójcik
- Department of Anatomy and Neurobiology, Medical University of Gdańsk, Gdańsk, Poland
| | - Anna Łęgowska
- Department of Biochemistry, Faculty of Chemistry, University of Gdańsk, Gdańsk, Poland
| | - Krzysztof Rolka
- Department of Biochemistry, Faculty of Chemistry, University of Gdańsk, Gdańsk, Poland
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18
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Srikanth S, Chen Z. Plant Protease Inhibitors in Therapeutics-Focus on Cancer Therapy. Front Pharmacol 2016; 7:470. [PMID: 28008315 PMCID: PMC5143346 DOI: 10.3389/fphar.2016.00470] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 11/18/2016] [Indexed: 12/28/2022] Open
Abstract
Plants are known to have many secondary metabolites and phytochemical compounds which are highly explored at biochemical and molecular genetics level and exploited enormously in the human health care sector. However, there are other less explored small molecular weight proteins, which inhibit proteases/proteinases. Plants are good sources of protease inhibitors (PIs) which protect them against diseases, insects, pests, and herbivores. In the past, proteinaceous PIs were considered primarily as protein-degrading enzymes. Nevertheless, this view has significantly changed and PIs are now treated as very important signaling molecules in many biological activities such as inflammation, apoptosis, blood clotting and hormone processing. In recent years, PIs have been examined extensively as therapeutic agents, primarily to deal with various human cancers. Interestingly, many plant-based PIs are also found to be effective against cardiovascular diseases, osteoporosis, inflammatory diseases and neurological disorders. Several plant PIs are under further evaluation in in vitro clinical trials. Among all types of PIs, Bowman-Birk inhibitors (BBI) have been studied extensively in the treatment of many diseases, especially in the field of cancer prevention. So far, crops such as beans, potatoes, barley, squash, millet, wheat, buckwheat, groundnut, chickpea, pigeonpea, corn, and pineapple have been identified as good sources of PIs. The PI content of such foods has a significant influence on human health disorders, particularly in the regions where people mostly depend on these kind of foods. These natural PIs vary in concentration, protease specificity, heat stability, and sometimes several PIs may be present in the same species or tissue. However, it is important to carry out individual studies to identify the potential effects of each PI on human health. PIs in plants make them incredible sources to determine novel PIs with specific pharmacological and therapeutic effects due to their peculiarity and superabundance.
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Affiliation(s)
| | - Zhong Chen
- Natural Sciences and Science Education, National Institute of Education, Nanyang Technological UniversitySingapore, Singapore
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19
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Temporospatial Characterization of Nutritional and Bioactive Components of Soybean Cultivars in China. J AM OIL CHEM SOC 2016. [DOI: 10.1007/s11746-016-2908-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Xu H, Kong YY, Chen X, Guo MY, Bai XH, Lu YJ, Li W, Zhou XW. Recombinant FIP-gat, a Fungal Immunomodulatory Protein from Ganoderma atrum, Induces Growth Inhibition and Cell Death in Breast Cancer Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:2690-2698. [PMID: 26996414 DOI: 10.1021/acs.jafc.6b00539] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
FIP-gat, an immunomodulatory protein isolated from Ganoderma atrum, is a new member of the FIP family. Little is known, however, about its expressional properties and antitumor activities. It was availably expressed in Escherichia coli with a total yield of 29.75 mg/L. The migration of recombinant FIP-gat (rFIP-gat) on SDS-PAGE corresponded to the predicted molecular mass, and the band was correctly detected by a specific antibody. To characterize the direct effects of rFIP-gat on MDA-MB-231 breast cancer cells, MDA-MB-231 cells were treated with different concentrations of rFIP-gat in vitro; the results showed that this protein could reduce cell viability dose-dependently with a median inhibitory concentration (IC50) of 9.96 μg/mL and agglutinate the MDA-MB-231 cells at a concentration as low as 5 μg/mL. Furthermore, FIP-gat at a concentration of 10 μg/mL can induce significant growth inhibition and cell death in MDA-MB-231 cells. Notably, FIP-gat treatment triggers significant cell cycle arrest at the G1/S transition and pronounced increase in apoptotic cell population. Molecular assays based on microarray and real-time PCR further revealed the potential mechanisms encompassing growth arrest, apoptosis, and autophagy underlying the phenotypic effects.
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Affiliation(s)
- Hui Xu
- Key Laboratory of Urban Agriculture (South) Ministry of Agriculture, and Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Agriculture and Biology, Shanghai Jiaotong University , Shanghai 200240, People's Republic of China
| | - Ying-Yu Kong
- Key Laboratory of Urban Agriculture (South) Ministry of Agriculture, and Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Agriculture and Biology, Shanghai Jiaotong University , Shanghai 200240, People's Republic of China
| | - Xin Chen
- Department of Immunology, University of Connecticut Health Center , Farmington, Connecticut 06032, United States
| | - Meng-Yuan Guo
- Key Laboratory of Urban Agriculture (South) Ministry of Agriculture, and Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Agriculture and Biology, Shanghai Jiaotong University , Shanghai 200240, People's Republic of China
| | - Xiao-Hui Bai
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University , Shanghai 200240, People's Republic of China
| | - Yu-Jia Lu
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University , Shanghai 200240, People's Republic of China
| | - Wei Li
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University , Shanghai 200240, People's Republic of China
| | - Xuan-Wei Zhou
- Key Laboratory of Urban Agriculture (South) Ministry of Agriculture, and Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Agriculture and Biology, Shanghai Jiaotong University , Shanghai 200240, People's Republic of China
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Mehdad A, Xavier Reis G, Souza AA, Barbosa JARG, Ventura MM, de Freitas SM. A Bowman-Birk inhibitor induces apoptosis in human breast adenocarcinoma through mitochondrial impairment and oxidative damage following proteasome 20S inhibition. Cell Death Discov 2016; 2:15067. [PMID: 27551492 PMCID: PMC4979482 DOI: 10.1038/cddiscovery.2015.67] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 11/19/2015] [Accepted: 12/03/2015] [Indexed: 12/29/2022] Open
Abstract
Proteasome inhibitors are emerging as a new class of chemopreventive agents and have gained huge importance as potential pharmacological tools in breast cancer treatment. Improved understanding of the role played by proteases and their specific inhibitors in humans offers novel and challenging opportunities for preventive and therapeutic intervention. In this study, we demonstrated that the Bowman-Birk protease inhibitor from Vigna unguiculata seeds, named black-eyed pea trypsin/chymotrypsin Inhibitor (BTCI), potently suppresses human breast adenocarcinoma cell viability by inhibiting the activity of proteasome 20S. BTCI induced a negative growth effect against a panel of breast cancer cells, with a concomitant cytostatic effect at the G2/M phase of the cell cycle and an increase in apoptosis, as observed by an augmented number of cells at the sub-G1 phase and annexin V-fluorescin isothiocyanate (FITC)/propidium iodide (PI) staining. In contrast, BTCI exhibited no cytotoxic effect on normal mammary epithelial cells. Moreover, the increased levels of intracellular reactive oxygen species (ROS) and changes in the mitochondrial membrane potential in cells treated with BTCI indicated mitochondrial damage as a crucial cellular event responsible for the apoptotic process. The higher activity of caspase in tumoral cells treated with BTCI in comparison with untreated cells suggests that BTCI induces apoptosis in a caspase-dependent manner. BTCI affected NF-kB target gene expression in both non invasive and invasive breast cancer cell lines, with the effect highly pronounced in the invasive cells. An increased expression of interleukin-8 (IL-8) in both cell lines was also observed. Taken together, these results suggest that BTCI promotes apoptosis through ROS-induced mitochondrial damage following proteasome inhibition. These findings highlight the pharmacological potential and benefit of BTCI in breast cancer treatment.
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Affiliation(s)
- A Mehdad
- Laboratory of Molecular Biophysics, Institute
of Biological Sciences, University of Brasilia, Brasilia,
Brazil
| | - Giselle Xavier Reis
- Faculty of Medicine, Department of Molecular
Pathology, University of Brasilia, Brasilia, Brazil
| | - AA Souza
- Laboratory of Molecular Biophysics, Institute
of Biological Sciences, University of Brasilia, Brasilia,
Brazil
| | - JARG Barbosa
- Laboratory of Molecular Biophysics, Institute
of Biological Sciences, University of Brasilia, Brasilia,
Brazil
| | - MM Ventura
- Laboratory of Molecular Biophysics, Institute
of Biological Sciences, University of Brasilia, Brasilia,
Brazil
| | - SM de Freitas
- Laboratory of Molecular Biophysics, Institute
of Biological Sciences, University of Brasilia, Brasilia,
Brazil
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Hernández-Ledesma B, Hsieh CC. Chemopreventive role of food-derived proteins and peptides: A review. Crit Rev Food Sci Nutr 2015; 57:2358-2376. [DOI: 10.1080/10408398.2015.1057632] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Blanca Hernández-Ledesma
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM, CEI UAM+CSIC), Madrid, Spain
| | - Chia-Chien Hsieh
- Department of Human Development and Family Studies (Nutritional Science and Education), National Taiwan Normal University, Taipei, Taiwan
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Wang Z, Li S, Ren R, Li J, Cui X. Recombinant Buckwheat Trypsin Inhibitor Induces Mitophagy by Directly Targeting Mitochondria and Causes Mitochondrial Dysfunction in Hep G2 Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:7795-7804. [PMID: 26301894 DOI: 10.1021/acs.jafc.5b02644] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Mitochondria are essential targets for cancer chemotherapy and other disease treatments. Recombinant buckwheat trypsin inhibitor (rBTI), a member of the potato type I proteinase inhibitor family, was derived from tartary buckwheat extracts. Our results showed that rBTI directly targeted mitochondria and induced mitochondrial fragmentation and mitophagy. This occurs through enhanced depolarization of the mitochondrial membrane potential, increasing reactive oxygen species (ROS) generation associated with the rise of the superoxide dismutase and catalase activity and glutathione peroxidase (GSH) content, and changes in the GSH/oxidized glutathione ratio. Mild and transient ROS induced by rBTI were shown to be important signaling molecules required to induce Hep G2 mitophagy to remove dysfunctional mitochondria. Furthermore, rBTI could directly induce mitochondrial fragmentation. It was also noted that rBTI highly increased colocalization of mitochondria in treated cells compared to nontreated cells. Tom 20, a subunit of the translocase of the mitochondrial outer membrane complex responsible for recognizing mitochondrial presequences, may be the direct target of rBTI.
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Affiliation(s)
- Zhuanhua Wang
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University , Taiyuan 030006, P. R. China
| | - Shanshan Li
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University , Taiyuan 030006, P. R. China
| | - Rong Ren
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University , Taiyuan 030006, P. R. China
| | - Jiao Li
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University , Taiyuan 030006, P. R. China
| | - Xiaodong Cui
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University , Taiyuan 030006, P. R. China
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Clemente A, Arques MC, Dalmais M, Le Signor C, Chinoy C, Olias R, Rayner T, Isaac PG, Lawson DM, Bendahmane A, Domoney C. Eliminating anti-nutritional plant food proteins: the case of seed protease inhibitors in pea. PLoS One 2015; 10:e0134634. [PMID: 26267859 PMCID: PMC4534040 DOI: 10.1371/journal.pone.0134634] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 07/11/2015] [Indexed: 12/03/2022] Open
Abstract
Several classes of seed proteins limit the utilisation of plant proteins in human and farm animal diets, while plant foods have much to offer to the sustainable intensification of food/feed production and to human health. Reduction or removal of these proteins could greatly enhance seed protein quality and various strategies have been used to try to achieve this with limited success. We investigated whether seed protease inhibitor mutations could be exploited to enhance seed quality, availing of induced mutant and natural Pisum germplasm collections to identify mutants, whilst acquiring an understanding of the impact of mutations on activity. A mutant (TILLING) resource developed in Pisum sativum L. (pea) and a large germplasm collection representing Pisum diversity were investigated as sources of mutations that reduce or abolish the activity of the major protease inhibitor (Bowman-Birk) class of seed protein. Of three missense mutations, predicted to affect activity of the mature trypsin / chymotrypsin inhibitor TI1 protein, a C77Y substitution in the mature mutant inhibitor abolished inhibitor activity, consistent with an absolute requirement for the disulphide bond C77-C92 for function in the native inhibitor. Two further classes of mutation (S85F, E109K) resulted in less dramatic changes to isoform or overall inhibitory activity. The alternative strategy to reduce anti-nutrients, by targeted screening of Pisum germplasm, successfully identified a single accession (Pisum elatius) as a double null mutant for the two closely linked genes encoding the TI1 and TI2 seed protease inhibitors. The P. elatius mutant has extremely low seed protease inhibitory activity and introgression of the mutation into cultivated germplasm has been achieved. The study provides new insights into structure-function relationships for protease inhibitors which impact on pea seed quality. The induced and natural germplasm variants identified provide immediate potential for either halving or abolishing the corresponding inhibitory activity, along with associated molecular markers for breeding programmes. The potential for making large changes to plant protein profiles for improved and sustainable food production through diversity is illustrated. The strategy employed here to reduce anti-nutritional proteins in seeds may be extended to allergens and other seed proteins with negative nutritional effects. Additionally, the novel variants described for pea will assist future studies of the biological role and health-related properties of so-called anti-nutrients.
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Affiliation(s)
- Alfonso Clemente
- Department of Physiology and Biochemistry of Animal Nutrition, Estación Experimental del Zaidín (CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - Maria C. Arques
- Department of Physiology and Biochemistry of Animal Nutrition, Estación Experimental del Zaidín (CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - Marion Dalmais
- Unité de Recherche en Génomique Végétale (URGV), UMR INRA 1165—CNRS 8114—UEVE 2, Rue Gaston Crémieux—CP 5708—F-91000 Evry cedex, France
| | - Christine Le Signor
- UMR 1347 Agroécologie AgroSup/INRA/uB, Pôle Génétique & Ecophysiologie GEAPSI, 17 rue Sully BP 86510, 21065 Dijon cedex, France
| | - Catherine Chinoy
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, United Kingdom
| | - Raquel Olias
- Department of Physiology and Biochemistry of Animal Nutrition, Estación Experimental del Zaidín (CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - Tracey Rayner
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, United Kingdom
| | - Peter G. Isaac
- IDna Genetics Ltd, Norwich Research Park, Norwich NR4 7UH, United Kingdom
| | - David M. Lawson
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, United Kingdom
| | - Abdelhafid Bendahmane
- Unité de Recherche en Génomique Végétale (URGV), UMR INRA 1165—CNRS 8114—UEVE 2, Rue Gaston Crémieux—CP 5708—F-91000 Evry cedex, France
| | - Claire Domoney
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, United Kingdom
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Fu XY, Zhang S, Wang K, Yang MF, Fan CD, Sun BL. Caudatin Inhibits Human Glioma Cells Growth Through Triggering DNA Damage-Mediated Cell Cycle Arrest. Cell Mol Neurobiol 2015; 35:953-9. [DOI: 10.1007/s10571-015-0190-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 03/25/2015] [Indexed: 11/29/2022]
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Malaguti M, Dinelli G, Leoncini E, Bregola V, Bosi S, Cicero AFG, Hrelia S. Bioactive peptides in cereals and legumes: agronomical, biochemical and clinical aspects. Int J Mol Sci 2014; 15:21120-35. [PMID: 25405741 PMCID: PMC4264216 DOI: 10.3390/ijms151121120] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 11/05/2014] [Accepted: 11/06/2014] [Indexed: 12/22/2022] Open
Abstract
Cereals and legumes are key components of a healthy and balanced diet. Accordingly, many national nutritional guidelines emphasize their health promoting properties by placing them at the base of nutritional food pyramids. This concept is further validated by the observed correlation between a lower risk and occurrence of chronic diseases and the adherence to dietary patterns, like the Mediterranean diet, in which cereal grains, legumes and derived products represent a staple food. In the search for a dietary approach to control/prevent chronic degenerative diseases, protein derived bioactive peptides may represent one such source of health-enhancing components. These peptides may already be present in foods as natural components or may derive from hydrolysis by chemical or enzymatic treatments (digestion, hydrolysis or fermentation). Many reports are present in the literature regarding the bioactivity of peptides in vitro and a wide range of activities has been described, including antimicrobial properties, blood pressure-lowering (ACE inhibitory) effects, cholesterol-lowering ability, antithrombotic and antioxidant activities, enhancement of mineral absorption/bioavailability, cyto- or immunomodulatory effects, and opioid-like activities. However it is difficult to translate these observed effects to human. In fact, the active peptide may be degraded during digestion, or may not be absorbed or reach the target tissues at a concentration necessary to exert its function. This review will focus on bioactive peptides identified in cereals and legumes, from an agronomical and biochemical point of view, including considerations about requirements for the design of appropriate clinical trials necessary for the assessment of their nutraceutical effect in vivo.
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Affiliation(s)
- Marco Malaguti
- Department for Life Quality Studies, Alma Mater Studiorum University of Bologna, Corso D'Augusto 237, 47921 Rimini, Italy.
| | - Giovanni Dinelli
- Department of Agricultural Sciences, Alma Mater Studiorum University of Bologna, Viale Fanin 44, 40127 Bologna, Italy.
| | - Emanuela Leoncini
- Department for Life Quality Studies, Alma Mater Studiorum University of Bologna, Corso D'Augusto 237, 47921 Rimini, Italy.
| | - Valeria Bregola
- Department of Agricultural Sciences, Alma Mater Studiorum University of Bologna, Viale Fanin 44, 40127 Bologna, Italy.
| | - Sara Bosi
- Department of Agricultural Sciences, Alma Mater Studiorum University of Bologna, Viale Fanin 44, 40127 Bologna, Italy.
| | - Arrigo F G Cicero
- Department of Medicine and Surgery, Alma Mater Studiorum University of Bologna, Via Albertoni 15, 40138 Bologna, Italy.
| | - Silvana Hrelia
- Department for Life Quality Studies, Alma Mater Studiorum University of Bologna, Corso D'Augusto 237, 47921 Rimini, Italy.
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Bowman-Birk protease inhibitor from Vigna unguiculata seeds enhances the action of bradykinin-related peptides. Molecules 2014; 19:17536-58. [PMID: 25361421 PMCID: PMC6271500 DOI: 10.3390/molecules191117536] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 10/02/2014] [Accepted: 10/09/2014] [Indexed: 01/13/2023] Open
Abstract
The hydrolysis of bradykinin (Bk) by different classes of proteases in plasma and tissues leads to a decrease in its half-life. Here, Bk actions on smooth muscle and in vivo cardiovascular assays in association with a protease inhibitor, Black eyed-pea trypsin and chymotrypsin inhibitor (BTCI) and also under the effect of trypsin and chymotrypsin were evaluated. Two synthetic Bk-related peptides, Bk1 and Bk2, were used to investigate the importance of additional C-terminal amino acid residues on serine protease activity. BTCI forms complexes with Bk and analogues at pH 5.0, 7.4 and 9.0, presenting binding constants ranging from 103 to 104 M−1. Formation of BTCI-Bk complexes is probably driven by hydrophobic forces, coupled with slight conformational changes in BTCI. In vitro assays using guinea pig (Cavia porcellus) ileum showed that Bk retains the ability to induce smooth muscle contraction in the presence of BTCI. Moreover, no alteration in the inhibitory activity of BTCI in complex with Bk and analogous was observed. When the BTCI and BTCI-Bk complexes were tested in vivo, a decrease of vascular resistance and consequent hypotension and potentiating renal and aortic vasodilatation induced by Bk and Bk2 infusions was observed. These results indicate that BTCI-Bk complexes may be a reliable strategy to act as a carrier and protective approach for Bk-related peptides against plasma serine proteases cleavage, leading to an increase in their half-life. These findings also indicate that BTCI could remain stable in some tissues to inhibit chymotrypsin or trypsin-like enzymes that cleave and inactivate bradykinin in situ.
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Clemente A, Arques MDC. Bowman-Birk inhibitors from legumes as colorectal chemopreventive agents. World J Gastroenterol 2014; 20:10305-10315. [PMID: 25132747 PMCID: PMC4130838 DOI: 10.3748/wjg.v20.i30.10305] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 02/21/2014] [Accepted: 04/23/2014] [Indexed: 02/06/2023] Open
Abstract
Aberrant functioning of serine proteases in inflammatory and carcinogenic processes within the gastrointestinal tract (GIT) has prompted scientists to investigate the potential of serine protease inhibitors, both natural and synthetic, as modulators of their proteolytic activities. Protease inhibitors of the Bowman-Birk type, a major protease inhibitor family in legume seeds, which inhibit potently and specifically trypsin- and chymotrypsin-like proteases, are currently being investigated as colorectal chemopreventive agents. Physiologically relevant amounts of Bowman-Birk inhibitors (BBI) can reach the large intestine in active form due to their extraordinary resistance to extreme conditions within the GIT. Studies in animal models have proven that dietary BBI from several legume sources, including soybean, pea, lentil and chickpea, can prevent or suppress carcinogenic and inflammatory processes within the GIT. Although the therapeutic targets and the action mechanism of BBI have not yet been elucidated, the emerging evidence suggests that BBI exert their preventive properties via protease inhibition; in this sense, serine proteases should be considered as primary targets in early stages of carcinogenesis. The validation of candidate serine proteases as therapeutic targets together with the identification, within the wide array of natural BBI variants, of the most potent and specific protease inhibitors, are necessary to better understand the potential of this protein family as colorectal chemopreventive agents.
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Fereidunian A, Sadeghalvad M, Oscoie MO, Mostafaie A. Soybean Bowman-Birk protease inhibitor (BBI): identification of the mechanisms of BBI suppressive effect on growth of two adenocarcinoma cell lines: AGS and HT29. Arch Med Res 2014; 45:455-61. [PMID: 25014623 DOI: 10.1016/j.arcmed.2014.07.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 06/24/2014] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND AIMS Bowman-Birk protease inhibitor (BBI) has been well known to suppress the emergence and progression of different cancers. In the present study, the mechanisms by which BBI alters cancers have been addressed. To reach this goal, the effects of BBI on proliferation of and VEGF secretion by two cell lines (AGS: gastric adenocarcinoma and HT-29: colorectal adenocarcinoma) and also BBI effect on MMP-2 and 9 synthesis/secretion by AGS cells was evaluated. METHODS ELISA method was used to assess VEGF concentration and gelatin zymography was used to address MMP-2 and 9 production/excretion. RESULTS BBI had powerful inhibitory effect on proliferation and VEGF secretion by both cell lines. In addition, inhibition of MMP-2 and MMP-9 secreted by AGS cells suggests BBI as a potent inhibitor of gastric cancer progression. On the other hand, the results indicated that inhibition of MMP-2, MMP-9 and VEGF secretion is one of the mechanisms of anti-angiogenic effect of BBI. CONCLUSION BBI expresses powerful suppressive effect on tumor progression of two prevalent cancers: gastric adenocarcinoma and colorectal adenocarcinoma.
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Affiliation(s)
- Amirhossein Fereidunian
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mona Sadeghalvad
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Maryam Omidi Oscoie
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ali Mostafaie
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran; Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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Non-Nutritive Compounds in Fabaceae Family Seeds and the Improvement of Their Nutritional Quality by Traditional Processing – a Review. POL J FOOD NUTR SCI 2014. [DOI: 10.2478/v10222-012-0098-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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31
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Trosko JE. Human adult stem cells as the target cells for the initiation of carcinogenesis and for the generation of "cancer stem cells". Int J Stem Cells 2014; 1:8-26. [PMID: 24855504 DOI: 10.15283/ijsc.2008.1.1.8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/01/2008] [Indexed: 01/12/2023] Open
Abstract
The inference to stem cells has been found in ancient myths and the concept of stem cells has existed in the fields of plant biology, developmental biology and embryology for decades. In the field of cancer research, the stem cell theory was one of the earliest hypotheses on the origin of a cancer from a single cell. However, an opposing hypothesis had it that an adult differentiated somatic cell could "de-differentiate" to become a cancer cell. Only within the last decade, via the "cloning" of Dolly, the sheep, did the field of stem cell biology really trigger an exciting revolution in biological research. The isolation of human embryonic stem cells has created a true revolution in the life sciences that has led to the hope that these human stem cells could lead to (a) basic science understanding of gene regulation during differentiation and development; (b) stem cell therapy; (c) gene therapy via stem cells; (d) the use of stem cells for drug discovery; (e) screening for toxic effects of chemicals; and (f) understand the aging and diseases of aging processes.
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Affiliation(s)
- James E Trosko
- Department of Pediatrics/Human Development, College of Human Medicine, Michigan State University, East Lansing, Michigan 48824, USA
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Horse gram- an underutilized nutraceutical pulse crop: a review. Journal of Food Science and Technology 2014; 52:2489-99. [PMID: 25892749 DOI: 10.1007/s13197-014-1312-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 12/27/2013] [Accepted: 03/06/2014] [Indexed: 01/15/2023]
Abstract
Horse gram is an underutilized pulse crop grown in wide range of adverse climatic conditions. It occupies an important place in human nutrition and has rich source of protein, minerals, and vitamins. Besides nutritional importance, it has been linked to reduced risk of various diseases due to presence of non-nutritive bioactive substances. These bioactive substances such as phytic acid, phenolic acid, fiber, enzymatic/proteinase inhibitors have significant metabolic and/or physiological effects. The importance of horse gram was well recognized by the folk/alternative/traditional medicine as a potential therapeutic agent to treat kidney stones, urinary diseases, piles, common cold, throat infection, fever etc. The inception of nutraceutical concept and increasing health consciousness the demand of nutraceutical and functional food is increased. In recent years, isolation and utilization of potential antioxidants from legumes including horse gram are increased as it decreases the risk of intestinal diseases, diabetes, coronary heart disease, prevention of dental caries etc. Keeping in view the increasing demand of food having nutraceutical values, the present review ascribed with recent scientific knowledge towards the possibilities of exploring the horse gram, as a source of food and nutraceuticals compounds.
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Inhibition of human and yeast 20S proteasome by analogues of trypsin inhibitor SFTI-1. PLoS One 2014; 9:e89465. [PMID: 24586798 PMCID: PMC3934894 DOI: 10.1371/journal.pone.0089465] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Accepted: 01/20/2014] [Indexed: 12/21/2022] Open
Abstract
Starting from the primary structure of sunflower trypsin inhibitor SFTI-1, we designed novel non-covalent inhibitors of human and yeast 20S proteasomes. Peptides with Arg residue in P1 position and two basic amino acid residues (Lys or/and Arg) in P2′ and P3′ positions strongly inhibited chymotrypsin-like and caspase-like activities, while trypsin-like activity was poorly modified. We found that some SFTI-1 analogues up-regulated exclusively the chymotrypsin-like activity of latent yeast 20S proteasome.
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Souza LDC, Camargo R, Demasi M, Santana JM, de Sá CM, de Freitas SM. Effects of an anticarcinogenic Bowman-Birk protease inhibitor on purified 20S proteasome and MCF-7 breast cancer cells. PLoS One 2014; 9:e86600. [PMID: 24475156 PMCID: PMC3903573 DOI: 10.1371/journal.pone.0086600] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Accepted: 12/11/2013] [Indexed: 01/01/2023] Open
Abstract
Proteasome inhibitors have been described as an important target for cancer therapy due to their potential to regulate the ubiquitin-proteasome system in the degradation pathway of cellular proteins. Here, we reported the effects of a Bowman-Birk-type protease inhibitor, the Black-eyed pea Trypsin/Chymotrypsin Inhibitor (BTCI), on proteasome 20S in MCF-7 breast cancer cells and on catalytic activity of the purified 20S proteasome from horse erythrocytes, as well as the structural analysis of the BTCI-20S proteasome complex. In vitro experiments and confocal microscopy showed that BTCI readily crosses the membrane of the breast cancer cells and co-localizes with the proteasome in cytoplasm and mainly in nucleus. Indeed, as indicated by dynamic light scattering, BTCI and 20S proteasome form a stable complex at temperatures up to 55°C and at neutral and alkaline pHs. In complexed form, BTCI strongly inhibits the proteolytic chymotrypsin-, trypsin- and caspase-like activities of 20S proteasome, indicated by inhibition constants of 10−7 M magnitude order. Besides other mechanisms, this feature can be associated with previously reported cytostatic and cytotoxic effects of BTCI in MCF-7 breast cancer cells by means of apoptosis.
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Affiliation(s)
- Larissa da Costa Souza
- Laboratory of Biophysics, Department of Cellular Biology, University of Brasília, Brasília, Brazil
| | - Ricardo Camargo
- Laboratory of Microbiology Department of Cellular Biology, University of Brasília, Brasília, Brazil
| | - Marilene Demasi
- Laboratory of Biochemistry and Biophysics, Butantan Institute, São Paulo, Brazil
| | - Jaime Martins Santana
- Laboratory of Pathogen-Host Interface, Department of Cellular Biology, University of Brasília, Brasília, Brazil
| | - Cézar Martins de Sá
- Laboratory of Microbiology Department of Cellular Biology, University of Brasília, Brasília, Brazil
| | - Sonia Maria de Freitas
- Laboratory of Biophysics, Department of Cellular Biology, University of Brasília, Brasília, Brazil
- * E-mail:
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Buckwheat trypsin inhibitor enters Hep G2 cells by clathrin-dependent endocytosis. Food Chem 2013; 141:2625-33. [DOI: 10.1016/j.foodchem.2013.04.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 03/29/2013] [Accepted: 04/01/2013] [Indexed: 11/18/2022]
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Production of horsegram (Dolichos biflorus) Bowman-Birk inhibitor by an intein mediated protein purification system. Protein Expr Purif 2013; 89:16-24. [DOI: 10.1016/j.pep.2013.02.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Revised: 02/04/2013] [Accepted: 02/06/2013] [Indexed: 01/19/2023]
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37
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Safavi F, Rostami A. Role of serine proteases in inflammation: Bowman-Birk protease inhibitor (BBI) as a potential therapy for autoimmune diseases. Exp Mol Pathol 2012; 93:428-33. [PMID: 23022357 DOI: 10.1016/j.yexmp.2012.09.014] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Accepted: 09/19/2012] [Indexed: 01/29/2023]
Abstract
Serine proteases, a sub-category of the protease family, participate in various physiologic and pathologic conditions. Serine proteases are involved in different arms of the immune system and play an important role in inflammation. They have been evaluated as therapeutic targets in several inflammatory diseases. The Bowman-Birk protease inhibitor (BBI), a soybean-derived serine protease inhibitor, is resistant to temperature and acidic conditions. These characteristics make it a good candidate for oral administration, with no major side effects. In addition, the therapeutic effect of BBI has been shown in inflammatory diseases and cancer. We have demonstrated the immunoregulatory and anti-inflammatory effects of BBI in the experimental autoimmune encephalomyelitis (EAE) model of multiple sclerosis. Here we review the role of serine proteases in inflammatory diseases, with emphasis on the potential of BBI as a novel oral therapy for multiple sclerosis.
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Affiliation(s)
- Farinaz Safavi
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA 19107, USA
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Magee PJ, Owusu-Apenten R, McCann MJ, Gill CI, Rowland IR. Chickpea (Cicer arietinum) and Other Plant-Derived Protease Inhibitor Concentrates Inhibit Breast and Prostate Cancer Cell Proliferation In Vitro. Nutr Cancer 2012; 64:741-8. [DOI: 10.1080/01635581.2012.688914] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Palavalli MH, Natarajan SS, Wang TTY, Krishnan HB. Imbibition of soybean seeds in warm water results in the release of copious amounts of Bowman-Birk protease inhibitor, a putative anticarcinogenic agent. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:3135-43. [PMID: 22372424 DOI: 10.1021/jf205308w] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Protease inhibitors play a protective role against pathogenic microorganisms and herbivorous insects. The two predominant protease inhibitors of soybean seeds are the Kunitz trypsin inhibitor (KTI) and Bowman-Birk protease inhibitor (BBI). In this study, we report that soybean seeds incubated in warm water release large amounts of proteins into the surrounding media. Two-dimensional gel electrophoresis analysis of the seed exudates resulted in the separation of 93 distinct protein spots out of which 90 spots were identified by LC-MS/MS. The basic 7S globulin and the BBI are the two predominant proteins found in the soybean seed exudates. In addition to 7S and 11S seed storage proteins, others known to protect the seeds against pathogens and pests including KTI, peroxidase, α-galactosidase, and endo-1.3-β-glucanase were also identified in the seed exudates. Soybean seed exudate obtained by incubating the seeds in warm water was also able to inhibit the growth of human breast cancer cell line MCF-7. Since soybean seeds release large amounts of enzymatically active BBI when immersed in warm water, our procedure could be exploited as a simplified alternative method for the preparation of BBI concentrate which is being used as a cancer chemoprotective agent.
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Affiliation(s)
- Manoj H Palavalli
- Plant Science Division, University of Missouri, 1-41 Agriculture Building, Columbia, Missouri 65211, USA
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de Paula Carli A, de Abreu Vieira PM, Silva KTS, de Sá Cota RG, Carneiro CM, Castro-Borges W, de Andrade MHG. Bowman-Birk inhibitors, proteasome peptidase activities and colorectal pre neoplasias induced by 1,2-dimethylhydrazine in Swiss mice. Food Chem Toxicol 2012; 50:1405-12. [PMID: 22326805 DOI: 10.1016/j.fct.2012.01.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Revised: 01/17/2012] [Accepted: 01/19/2012] [Indexed: 12/24/2022]
Abstract
Bowman-Birk inhibitors (BBIs) are protein molecules containing two inhibitory domains for enzymes similar to trypsin and chymotrypsin. Interest in these inhibitors arose from their properties against the cancer chemically induced by 1,2-dimethylhydrazine (DMH). In this study the effect of two BBI preparations (from Glycine max and Macrotyloma axillare) were evaluated for the prevention of colorectal neoplasia induced by intraperitoneal injections of DMH, given at a dose of 30 mg/kg, during 12 weeks. Mice treated with DMH presented histopathological alterations consistent with tumor development, augmented CD44 expression and increased proteasome peptidase activities. Lysosomal fractions, obtained from the intestines, were chromatographed in a Sepharose-BBI column and increased activity for trypsin and chymotrypsin-like proteases recovered from DMH-treated animals. In parallel, mice treated for eight weeks with BBIs showed a decrease in the chymotrypsin and trypsin-like proteasome activities compared to animals fed on normal diet. For the groups receiving simultaneous treatment with DMH and BBIs, dysplasic lesions were not observed and proteasome peptidase activities were similar to the control group after the 24th week. These results suggest that the mechanism by which BBIs could prevent the appearance of pre neoplastic lesions is associated with inhibition of both the lysosomal and proteasome-dependent proteolytic pathways.
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Bai L, Xu X, Wang Q, Xu S, Ju W, Wang X, Chen W, He W, Tang H, Lin Y. A superoxide-mediated mitogen-activated protein kinase phosphatase-1 degradation and c-Jun NH(2)-terminal kinase activation pathway for luteolin-induced lung cancer cytotoxicity. Mol Pharmacol 2012; 81:549-55. [PMID: 22222766 DOI: 10.1124/mol.111.076653] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Although luteolin is identified as a potential cancer therapeutic and preventive agent because of its potent cancer cell-killing activity, the molecular mechanisms by which its cancer cell cytotoxicity is achieved have not been well elucidated. In this report, luteolin-induced cellular signaling was systematically investigated, and a novel pathway for luteolin's lung cancer killing was identified. The results show that induction of superoxide is an early and crucial step for luteolin-induced apoptotic and nonapoptotic death in lung cancer cells. The c-Jun N-terminal kinase (JNK) was potently activated after superoxide accumulation. Suppression of superoxide completely blocked luteolin-induced JNK activation, which was well correlated to alleviation of luteolin's cytotoxicity. Although luteolin slightly stimulated the JNK-activating kinase mitogen-activated protein kinase kinase 7, the latter was not dependent on superoxide. We further found that luteolin triggers a superoxide-dependent rapid degradation of the JNK-inactivating phosphatase mitogen-activated protein kinase phosphatase-1 (MKP-1). Introduction of a degradation-resistant MKP-1 mutant effectively attenuated luteolin-induced JNK activation and cytotoxicity, suggesting that inhibition of the JNK suppressor MKP-1 plays a major role in luteolin-induced lung cancer cell death. Taken together, our results unveil a novel pathway consisting of superoxide, MKP-1, and JNK for luteolin's cytotoxicity in lung cancer cells, and manipulation of this pathway could be a useful approach for applying luteolin for lung cancer prevention and therapy.
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Affiliation(s)
- Lang Bai
- Molecular Biology and Lung Cancer Program, Lovelace Respiratory Research Institute, Albuquerque, NM 87108, USA
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Chen CC, Hardy DB, Mendelson CR. Progesterone receptor inhibits proliferation of human breast cancer cells via induction of MAPK phosphatase 1 (MKP-1/DUSP1). J Biol Chem 2011; 286:43091-102. [PMID: 22020934 DOI: 10.1074/jbc.m111.295865] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The roles of progesterone (P(4)) and of progesterone receptor (PR) in development and pathogenesis of breast cancer remain unclear. In this study, we observed that treatment of T47D breast cancer cells with progestin antagonized effects of fetal bovine serum (FBS) to stimulate cell proliferation, whereas siRNA-mediated knockdown of endogenous PR abrogated progestin-mediated anti-proliferative effects. To begin to define mechanisms for the anti-proliferative action of P(4)/PR, we considered the role of MAPK phosphatase 1 (MKP-1/DUSP1), which catalyzes dephosphorylation and inactivation of MAPKs. Progestin treatment of T47D cells rapidly induced MKP-1 expression in a PR-dependent manner. Importantly, P(4) induction of MKP-1 was associated with reduced levels of phosphorylated ERK1/2, whereas siRNA knockdown of MKP-1 blocked progestin-mediated ERK1/2 dephosphorylation and repression of FBS-induced cell proliferation. The importance of PR in MKP-1 expression was supported by findings that MKP-1 and PR mRNA levels were significantly correlated in 30 human breast cancer cell lines. By contrast, no correlation was observed with the glucocorticoid receptor, a known regulator of MKP-1 in other cell types. ChIP and luciferase reporter assay findings suggest that PR acts in a ligand-dependent manner through binding to two progesterone response elements downstream of the MKP-1 transcription start site to up-regulate MKP-1 promoter activity. PR also interacts with two Sp1 sites just downstream of the transcription start site to increase MKP-1 expression. Collectively, these findings suggest that MKP-1 is a critical mediator of anti-proliferative and anti-inflammatory actions of PR in the breast.
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Affiliation(s)
- Chien-Cheng Chen
- Departments of Biochemistry and Obstetrics & Gynecology, North Texas March of Dimes Birth Defects Center, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
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Effect of AATI, a Bowman-Birk type inhibitor from Apios americana, on proliferation of cancer cell lines. Food Chem 2011. [DOI: 10.1016/j.foodchem.2011.03.117] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Cysteine peptidases and their inhibitors in breast and genital cancer. Folia Histochem Cytobiol 2011; 48:323-7. [PMID: 21071333 DOI: 10.2478/v10042-10-0067-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cysteine proteinases and their inhibitors probably play the main role in carcinogenesis and metastasis. The metastasis process need external proteolytic activities that pass several barriers which are membranous structures of the connective tissue which includes, the basement membrane of blood vessels. Activities of the proteinases are regulated by endogenous inhibitors and activators. The imbalance between cysteine proteinases and cystatins seems to be associated with an increase in metastatic potential in some tumors. It has also been reported that proteinase inhibitors, specific antibodies for these enzymes and inhibition of the urokinase receptor may prevent cancer cell invasion. Some proteinase inhibitor could serve as agents for cancer treatment.
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Li J, Ye L, Cook DR, Wang X, Liu J, Kolson DL, Persidsky Y, Ho WZ. Soybean-derived Bowman-Birk inhibitor inhibits neurotoxicity of LPS-activated macrophages. J Neuroinflammation 2011; 8:15. [PMID: 21324129 PMCID: PMC3046894 DOI: 10.1186/1742-2094-8-15] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2010] [Accepted: 02/15/2011] [Indexed: 12/12/2022] Open
Abstract
Background Lipopolysaccharide (LPS), the major component of the outer membrane of gram-negative bacteria, can activate immune cells including macrophages. Activation of macrophages in the central nervous system (CNS) contributes to neuronal injury. Bowman-Birk inhibitor (BBI), a soybean-derived protease inhibitor, has anti-inflammatory properties. In this study, we examined whether BBI has the ability to inhibit LPS-mediated macrophage activation, reducing the release of pro-inflammatory cytokines and subsequent neurotoxicity in primary cortical neural cultures. Methods Mixed cortical neural cultures from rat were used as target cells for testing neurotoxicity induced by LPS-treated macrophage supernatant. Neuronal survival was measured using a cell-based ELISA method for expression of the neuronal marker MAP-2. Intracellular reactive oxygen species (ROS) production in macrophages was measured via 2', 7'-dichlorofluorescin diacetate (DCFH2DA) oxidation. Cytokine expression was determined by quantitative real-time PCR. Results LPS treatment of macrophages induced expression of proinflammatory cytokines (IL-1β, IL-6 and TNF-α) and of ROS. In contrast, BBI pretreatment (1-100 μg/ml) of macrophages significantly inhibited LPS-mediated induction of these cytokines and ROS. Further, supernatant from BBI-pretreated and LPS-activated macrophage cultures was found to be less cytotoxic to neurons than that from non-BBI-pretreated and LPS-activated macrophage cultures. BBI, when directly added to the neuronal cultures (1-100 μg/ml), had no protective effect on neurons with or without LPS-activated macrophage supernatant treatment. In addition, BBI (100 μg/ml) had no effect on N-methyl-D-aspartic acid (NMDA)-mediated neurotoxicity. Conclusions These findings demonstrate that BBI, through its anti-inflammatory properties, protects neurons from neurotoxicity mediated by activated macrophages.
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Affiliation(s)
- Jieliang Li
- Department of Pathology & Laboratory Medicine, Temple University School of Medicine, Philadelphia, Pennsylvania, USA
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Rocco M, Malorni L, Chambery A, Poerio E, Parente A, Di Maro A. A Bowman–Birk inhibitor with anti-elastase activity from Lathyrus sativus L. seeds. MOLECULAR BIOSYSTEMS 2011; 7:2500-7. [DOI: 10.1039/c1mb05141e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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The role of nutraceutical proteins and peptides in apoptosis, angiogenesis, and metastasis of cancer cells. Cancer Metastasis Rev 2010; 29:511-28. [PMID: 20714786 DOI: 10.1007/s10555-010-9241-4] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The process of carcinogenesis is complex and not easy to eliminate. It includes the initial occurrence of genetic alterations which can lead to the inactivation of tumor-suppressor genes and further accumulation of genetic alterations during tumor progression. Looking for food and food components with biological properties, collectively called nutraceuticals, that can hinder such alterations and prevent the inactivation of tumor-suppressor genes is a very promising area for cancer prevention. Proteins and peptides are one group of nutraceuticals that show potential results in preventing the different stages of cancer including initiation, promotion, and progression. In this review, we summarized current knowledge on the use of nutraceutical proteins and peptides in cancer prevention and treatment. We focused on the role of plant protease inhibitors, lactoferrin and lactoferricin, shark cartilage, plant lectins, and lunasin in the apoptosis, angiogenesis, and metastasis of cancer cells. Also included are studies on bioavailability and clinical trials conducted on these promising proteins and peptides.
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Clemente A, Moreno FJ, Marín-Manzano MDC, Jiménez E, Domoney C. The cytotoxic effect of Bowman-Birk isoinhibitors, IBB1 and IBBD2, from soybean (Glycine max) on HT29 human colorectal cancer cells is related to their intrinsic ability to inhibit serine proteases. Mol Nutr Food Res 2010; 54:396-405. [PMID: 19885848 DOI: 10.1002/mnfr.200900122] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Bowman-Birk inhibitors (BBI) from soybean and related proteins are naturally occurring protease inhibitors with potential health-promoting properties within the gastrointestinal tract. In this work, we have investigated the effects of soybean BBI proteins on HT29 colon adenocarcinoma cells, compared with non-malignant colonic fibroblast CCD-18Co cells. Two major soybean isoinhibitors, IBB1 and IBBD2, showing considerable amino acid sequence divergence within their inhibitory domains, were purified in order to examine their functional properties, including their individual effects on the proliferation of HT29 colon cancer cells. IBB1 inhibited both trypsin and chymotrypsin whereas IBBD2 inhibited trypsin only. Despite showing significant differences in their enzyme inhibitory properties, the median inhibitory concentration values determined for IBB1 and IBBD2 on HT29 cell growth were not significantly different (39.9+/-2.3 and 48.3+/-3.5 microM, respectively). The cell cycle distribution pattern of HT29 colon cancer cells was affected by BBI treatment in a dose-dependent manner, with cells becoming blocked in the G0-G1 phase. Chemically inactive soybean BBI had a weak but non-significant effect on the proliferation of HT29 cells. The anti-proliferative properties of BBI isoinhibitors from soybean reveal that both trypsin- and chymotrypsin-like proteases involved in carcinogenesis should be considered as potential targets of BBI-like proteins.
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Affiliation(s)
- Alfonso Clemente
- Department of Physiology and Biochemistry of Nutrition, Estación Experimental del Zaidín (CSIC), Granada, Spain.
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Caccialupi P, Ceci LR, Siciliano RA, Pignone D, Clemente A, Sonnante G. Bowman-Birk inhibitors in lentil: Heterologous expression, functional characterisation and anti-proliferative properties in human colon cancer cells. Food Chem 2010. [DOI: 10.1016/j.foodchem.2009.11.051] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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50
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Carvajal-Rondanelli PA, Lanier TC. Diffusion of active proteins into fish meat to minimize proteolytic degradation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:5300-5307. [PMID: 20380449 DOI: 10.1021/jf903580t] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Proteases in fish muscle often cause undesired softening of intact meat pieces during refrigerated storage or slow cooking. Several food-grade proteinaceous inhibitors can overcome this softening if properly delivered to the intracellular sites where proteases are located. Fluorescence recovery after photobleaching (FRAP) and laser scanning confocal microscopy (LSCM) were used to measure the translational diffusion of fluorescein isothiocyanate (FITC)-labeled protease inhibitors into intact muscle fibers of halibut. Diffusion coefficients (D) of alpha-2-macroglobulin (720 kDa), soybean trypsin inhibitor (21 kDa), and cystatin (12 kDa) were measured in both muscle fibers and dilute aqueous solutions. On the time scale of the observation (35 min), cystatin and soybean trypsin inhibitor diffused through the cell membrane (sarcolemma) and sarcoplasm, but at a considerably slower rate (>10-fold difference) than in dilute aqueous solution. alpha-2-Macroglobulin did not diffuse into muscle cells within the time frame of the experiment, but did completely penetrate the cell during overnight exposure. The present study thus shows a clear dependence of D on protein inhibitor size when moving within intact skeletal muscle fibers. Low molecular weight protease inhibitors such as cystatin can be effectively diffused into intact fish muscle cells to minimize proteolytic activity and meat softening.
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