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Routray DS. Bowman Birk Inhibitors (BBI) in interception of inflammation and malignant transformation of OPMDs. Oral Oncol 2018; 78:220-221. [PMID: 29429632 DOI: 10.1016/j.oraloncology.2018.02.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 02/01/2018] [Accepted: 02/04/2018] [Indexed: 10/18/2022]
Affiliation(s)
- Dr Samapika Routray
- M.D.S(Oral Pathology & Microbiology), Department of Dental Surgery, All India Institute of Medical Sciences, Bhubaneswar, Odisha 751019, India.
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Forrest CM, McNair K, Vincenten MCJ, Darlington LG, Stone TW. Selective depletion of tumour suppressors Deleted in Colorectal Cancer (DCC) and neogenin by environmental and endogenous serine proteases: linking diet and cancer. BMC Cancer 2016; 16:772. [PMID: 27716118 PMCID: PMC5054602 DOI: 10.1186/s12885-016-2795-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 09/21/2016] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND The related tumour suppressor proteins Deleted in Colorectal Cancer (DCC) and neogenin are absent or weakly expressed in many cancers, whereas their insertion into cells suppresses oncogenic behaviour. Serine proteases influence the initiation and progression of cancers although the mechanisms are unknown. METHODS The effects of environmental (bacterial subtilisin) and endogenous mammalian (chymotrypsin) serine proteases were examined on protein expression in fresh, normal tissue and human neuroblastoma and mammary adenocarcinoma lines. Cell proliferation and migration assays (chemoattraction and wound closure) were used to examine cell function. Cells lacking DCC were transfected with an ectopic dcc plasmid. RESULTS Subtilisin and chymotrypsin selectively depleted DCC and neogenin from cells at nanomolar concentrations without affecting related proteins. Cells showed reduced adherence and increased migration, but after washing they re-attached within 24 h, with recovery of protein expression. These effects are induced by chymotryptic activity as they are prevented by chymostatin and the soybean Bowman-Birk inhibitor typical of many plant protease inhibitors. CONCLUSIONS Bacillus subtilis, which secretes subtilisin is widely present in soil, the environment and the intestinal contents, while subtilisin itself is used in meat processing, animal feed probiotics and many household cleaning agents. With chymotrypsin present in chyme, blood and tissues, these proteases may contribute to cancer development by depleting DCC and neogenin. Blocking their activity by Bowman-Birk inhibitors may explain the protective effects of a plant diet. Our findings identify a potential non-genetic contribution to cancer cell behaviour which may explain both the association of processed meats and other factors with cancer incidence and the protection afforded by plant-rich diets, with significant implications for cancer prevention.
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Affiliation(s)
- Caroline M Forrest
- College of Medical, Veterinary and Life Sciences, West Medical Building, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Kara McNair
- College of Medical, Veterinary and Life Sciences, West Medical Building, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Maria C J Vincenten
- College of Medical, Veterinary and Life Sciences, West Medical Building, University of Glasgow, Glasgow, G12 8QQ, UK
| | | | - Trevor W Stone
- College of Medical, Veterinary and Life Sciences, West Medical Building, University of Glasgow, Glasgow, G12 8QQ, UK.
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Muceniece R, Namniece J, Nakurte I, Jekabsons K, Riekstina U, Jansone B. Pharmacological research on natural substances in Latvia: Focus on lunasin, betulin, polyprenol and phlorizin. Pharmacol Res 2016; 113:760-770. [PMID: 27109319 DOI: 10.1016/j.phrs.2016.03.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 03/22/2016] [Accepted: 03/22/2016] [Indexed: 01/08/2023]
Abstract
In this concise review the current research in plant bioactive compound studies in Latvia is described. The paper summarizes recent studies on substances from edible plants (e.g., cereals and apples) or their synthetic analogues, such as peptide lunasin, as well as substances isolated from inedible plants (e.g., birch and conifer), such as pentacyclic triterpenes (e.g., betulin, betulinic acid, and lupeol) and polyprenols. Latvian researchers have been first to demonstrate the presence of lunasin in triticale and oats. Additionally, the impact of genotype on the levels of lunasin in cereals was shown. Pharmacological studies have revealed effects of lunasin and synthetic triterpenes on the central nervous system in rodents. We were first to show that synthetic lunasin causes a marked neuroleptic/cataleptic effect and that betulin antagonizes bicuculline-induced seizures (a GABA A receptor antagonist). Studies on the mechanisms of action showed that lunasin binds to dopamine D1 receptors and betulin binds to melanocortin and gamma-aminobutyric acid A receptors therefore we suggest that these receptors play an essential role in lunasin's and betulin's central effects. Recent studies on conifer polyprenols demonstrated the ability of polyprenols to prevent statin-induced muscle weakness in a rat model. Another study on plant compounds has demonstrated the anti-hyperglycemic activity of phlorizin-containing unripe apple pomace in healthy volunteers. In summary, research into plant-derived compounds in Latvia has been focused on fractionating, isolating and characterizing of lunasin, triterpenes, polyprenols and phlorizin using in vitro, and in vivo assays, and human observational studies.
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Affiliation(s)
- Ruta Muceniece
- Department of Pharmacy, Faculty of Medicine, University of Latvia, 19 Raina Blvd., Riga, LV1586, Latvia.
| | - Jana Namniece
- Department of Pharmacy, Faculty of Medicine, University of Latvia, 19 Raina Blvd., Riga, LV1586, Latvia
| | - Ilva Nakurte
- Department of Physical chemistry, Faculty of Chemistry, University of Latvia, 19 Raina Blvd., Riga, LV1586, Latvia
| | - Kaspars Jekabsons
- Department of Pharmacy, Faculty of Medicine, University of Latvia, 19 Raina Blvd., Riga, LV1586, Latvia
| | - Una Riekstina
- Department of Pharmacy, Faculty of Medicine, University of Latvia, 19 Raina Blvd., Riga, LV1586, Latvia
| | - Baiba Jansone
- Department of Pharmacology, Faculty of Medicine, University of Latvia, 19 Raina Blvd, Riga, LV1586, Latvia
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4
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Abstract
In the United States, nearly 44,000 people are diagnosed with oral or pharyngeal cancer annually. The life expectancy for those who are diagnosed have a survival rate of 57% after five years. Among them, oral cancer can be classified as benign or malignant tumors and is diagnosed at several stages in the development: premalignant conditions, premalignant lesions, and malignant cancer. The early signs of oral cancer often go unnoticed by the individual and are often discovered during routine dental examinations. Early detection and treatment may help to increase patient survival rates. The most widely used treatments for oral cancer include surgery, radiation, and chemotherapy-alone or in combination. Preclinical and clinical evidence for the use of green tea, raspberry, asparagus, and cannabis extracts is discussed in this review. Diet changes, supplementation with antioxidants, high-dose vitamin C therapy, and cannabinoid use have been suggested to decrease cancer cell replication and increase chance of remission. Early detection and lifestyle changes, including the use of dietary supplements in at-risk populations, are critical steps in preventing and successfully treating oral cancer. The main evidence for supplement use is currently in cancer prevention rather than treatment. Further research, determination, and mechanism of action for bioactive compounds such as epigallocatechin, epicatechin-3-gallate, and Bowman-Birk inhibitor concentrate, through in vitro, in vivo, and clinical trials need to be completed to support the use of natural products and their effectiveness in preventative care and supporting therapeutic approaches.
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Affiliation(s)
- Jessie Godsey
- a Department of Medicinal Chemistry, College of Pharmacy , University of Florida , Gainesville , Florida , USA
| | - Oliver Grundmann
- a Department of Medicinal Chemistry, College of Pharmacy , University of Florida , Gainesville , Florida , USA
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5
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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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6
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Murugkar DA. Effect of different process parameters on the quality of soymilk and tofu from sprouted soybean. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2015; 52:2886-93. [PMID: 25892787 PMCID: PMC4397316 DOI: 10.1007/s13197-014-1320-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/06/2014] [Accepted: 03/06/2014] [Indexed: 10/25/2022]
Abstract
The effect of grinding cum blanching (GCB) of sprouted soybean at different temperatures on milk and tofu quality was studied. Three temperatures (121 °C-T1,100 °C-T2 and 80 °C-T3) for GCB were used to produce soymilk and tofu from sprouted soybean which were analysed for the yield, nutritional, anti-nutritional profile, colour attributes, particle size, organoleptic quality and texture profile. Unsprouted Soybeans with GCB at 121 °C served as control (C). There was significant difference (P < 0.5) in trypsin inhibitor content in milk and ranged from 4.1 mg/g in T3 to 1.4 mg/g in T1. Optimal reduction in TI of 75-80 % was achieved in T2. There was significant difference (P < 0.5) in protein extractability and ranged from 84.4 % in C to 93.9 % in T2. Hardness (N) of tofu was around 11.22 in C and reduced to 8.9, 8.6 and 4.4 in T1, T2 and T3 respectively. L values of soymilk ranged from 83.4 in C to 85.8 in T3; in tofu from 83.1(T3) to 87.2 (C) and decreased with the increase in heating temperature and time. Particle size d [3, 2] and volume d [4, 3] between treatments varied significantly (P < 0.0001 and P < 0.0038). Overall acceptability scores on 9 point hedonic scale for all treatments for milk and tofu were above 5. The texture scores of tofu for T3 were very low due to its soft structure. From the above investigations 100 °C was the optimal temperature for GCB of sprouted soybean for the production of good quality soymilk and tofu.
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Affiliation(s)
- Dipika Agrahar Murugkar
- Agro Produce Processing Division, Central Institute of Agricultural Engineering, Nabibagh, Berasia Road, Bhopal, 462 038 India
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7
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Cruz-Silva I, Neuhof C, Gozzo AJ, Nunes VA, Hirata IY, Sampaio MU, Figueiredo-Ribeiro RDC, Neuhof H, Araújo MDS. Using a Caesalpinia echinata Lam. protease inhibitor as a tool for studying the roles of neutrophil elastase, cathepsin G and proteinase 3 in pulmonary edema. PHYTOCHEMISTRY 2013; 96:235-243. [PMID: 24140156 DOI: 10.1016/j.phytochem.2013.09.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 07/17/2013] [Accepted: 09/26/2013] [Indexed: 06/02/2023]
Abstract
Acute lung injury (ALI) is characterized by neutrophil infiltration and the release of proteases, mainly elastase (NE), cathepsin G (Cat G) and proteinase 3 (PR3), which can be controlled by specific endogenous inhibitors. However, inhibitors of these proteases have been isolated from different sources, including plants. For this study, CeEI, or Caesalpinia echinata elastase inhibitor, was purified from C. echinata (Brazil-wood) seeds after acetone fractionation, followed by ion exchange and reversed phase chromatographic steps. Characterization with SDS-PAGE, stability assays, amino acid sequencing and alignment with other protein sequences confirmed that CeEI is a member of the soybean Kunitz trypsin inhibitor family. Like other members of this family, CeEI is a 20 kDa monomeric protein; it is stable within a large pH and temperature range, with four cysteine residues forming two disulfide bridges, conserved amino acid residues and leucine-isoleucine residues in the reactive site. CeEI was able to inhibit NE and Cat G at a nanomolar range (with K(i)s of 1.9 and 3.6 nM, respectively) and inhibited PR3 within a micromolar range (K(i) 3.7 μM), leading to hydrolysis of specific synthetic substrates. In a lung edema model, CeEI reduced the lung weight and pulmonary artery pressure until 180 min after the injection of zymosan-activated polymorphonuclear neutrophils. In experiments performed in the presence of a Cat G and PR3, but not an NE inhibitor, lung edema was reduced only until 150 min and pulmonary artery pressure was similar to that of the control. These results confirm that NE action is crucial to edema establishment and progression. Additionally, CeEI appears to be a useful tool for studying the physiology of pulmonary edema and provides a template for molecular engineering and drug design for ALI therapy.
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Affiliation(s)
- Ilana Cruz-Silva
- Department of Biochemistry, Universidade Federal de São Paulo, Rua Três de Maio, 100, 04044-020 São Paulo, SP, Brazil
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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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9
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Rizzello CG, Nionelli L, Coda R, Gobbetti M. Synthesis of the cancer preventive peptide lunasin by lactic acid bacteria during sourdough fermentation. Nutr Cancer 2011; 64:111-20. [PMID: 22098174 DOI: 10.1080/01635581.2012.630159] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This study aimed to exploit the potential of sourdough lactic acid bacteria to release lunasin during fermentation of cereal and nonconventional flours. The peptidase activities of a large number of sourdough lactic acid bacteria were screened using synthetic substrates. Selected lactic acid bacteria were used as sourdough starters to ferment wholemeal wheat, soybean, barley, amaranth, and rye flours. Proteinase activity during fermentation was characterized by SDS-PAGE analysis of the water-soluble extracts. Albumins having molecular masses of 18 to 22 kDa, which included the size of lunasin precursors, were markedly affected by proteolysis of lactic acid bacteria. After fermentation, lunasin from the water-soluble extracts was quantified, purified, and identified through RP-HPLC and nano-LC-ESI-MS analyses. Compared to control doughs, the concentration of lunasin increased up to 2-4 times during fermentation. Lactobacillus curvatus SAL33 and Lactobacillus brevis AM7 synthesized the highest concentrations of lunasin in all the flours. Besides the presence of the entire lunasin sequence, fragments containing the immunoreactive epitope RGDDDDDDDDD were also found. This study shows that fermentation by lactic acid bacteria increased the concentration of lunasin to levels that would suggest new possibilities for the biological synthesis and for the formulation of functional foods.
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Affiliation(s)
- Carlo G Rizzello
- Department of Environmental and Agro-Forestry Biology and Chemistry, University of Bari, Bari, Italy
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10
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De Flora S, Bonanni P. The prevention of infection-associated cancers. Carcinogenesis 2011; 32:787-95. [PMID: 21436188 PMCID: PMC3314281 DOI: 10.1093/carcin/bgr054] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 03/07/2011] [Accepted: 03/14/2011] [Indexed: 01/06/2023] Open
Abstract
Collectively, chronic viral and bacterial infections and trematode infestations have been estimated to be associated with approximately one of five human cancers worldwide. The fraction attributable to each one of the chronic infections caused by hepatitis B and C viruses (HBV and HCV), human papillomaviruses (HPV) and Helicobacter pylori, is ∼5%. These infections are the most important causes of major types of cancer, including hepatocellular carcinoma, cervical cancer and stomach cancer, respectively. Taking into account the mechanisms of infection-related carcinogenesis, integrated approaches are addressed to the control of the associated infection as well as to avoidance of cancer occurrence and progression. Large-scale interventions have been implemented, such as the anti-HBV and anti-HPV routine vaccination programs. The latter has been designed with the specific goal of preventing HPV-associated cancers, which is an outstanding breakthrough in cancer prevention. Intriguingly, not only prevention but even therapy of an infectious disease and eradication of a pathogen become a crucial tool for the primary prevention of these cancers. An important role is also played by secondary prevention (e.g. Pap test and DNA testing for HPV-associated cervical cancers) and by tertiary prevention (e.g. antiangiogenesis in Kaposi's sarcoma). The present article reviews the microbial and parasitic diseases that have been associated so far with human cancers, draws an overview of their burden in cancer epidemiology, deals with applicable prevention strategies and provides examples of co-ordinated approaches to the control of cancers associated with HBV, HCV, HPV, human immunodeficiency virus and H.pylori infections.
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Affiliation(s)
- Silvio De Flora
- Department of Health Sciences, University of Genoa, Via A. Pastore 1, I-16132 Genoa, Italy.
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11
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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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12
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Kennedy A. The Status of Human Trials Utilizing Bowman–Birk Inhibitor Concentrate from Soybeans. ACTA ACUST UNITED AC 2009. [DOI: 10.1201/9781420026566.ch12] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
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Boutros T, Chevet E, Metrakos P. Mitogen-activated protein (MAP) kinase/MAP kinase phosphatase regulation: roles in cell growth, death, and cancer. Pharmacol Rev 2009; 60:261-310. [PMID: 18922965 DOI: 10.1124/pr.107.00106] [Citation(s) in RCA: 438] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Mitogen-activated protein kinase dual-specificity phosphatase-1 (also called MKP-1, DUSP1, ERP, CL100, HVH1, PTPN10, and 3CH134) is a member of the threonine-tyrosine dual-specificity phosphatases, one of more than 100 protein tyrosine phosphatases. It was first identified approximately 20 years ago, and since that time extensive investigations into both mkp-1 mRNA and protein regulation and function in different cells, tissues, and organs have been conducted. However, no general review on the topic of MKP-1 exists. As the subject matter pertaining to MKP-1 encompasses many branches of the biomedical field, we focus on the role of this protein in cancer development and progression, highlighting the potential role of the mitogen-activated protein kinase (MAPK) family. Section II of this article elucidates the MAPK family cross-talk. Section III reviews the structure of the mkp-1 encoding gene, and the known mechanisms regulating the expression and activity of the protein. Section IV is an overview of the MAPK-specific dual-specificity phosphatases and their role in cancer. In sections V and VI, mkp-1 mRNA and protein are examined in relation to cancer biology, therapeutics, and clinical studies, including a discussion of the potential role of the MAPK family. We conclude by proposing an integrated scheme for MKP-1 and MAPK in cancer.
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Affiliation(s)
- Tarek Boutros
- Department of Surgery, Royal Victoria Hospital, McGill University, 687 Pine Ave. W., Montreal, QC H3A1A1, Canada.
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César JJ, Santana MA, Oliveira ME, Santos AG, Miranda AAC, Santos AMC, Santoro MM, Andrade MHG. A New Extraction and Purification Methodology of Bowman-Birk Inhibitors from Seeds and Germinated Seeds of Macrotyloma axillare. Chromatographia 2008. [DOI: 10.1365/s10337-008-0907-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Touil T, Ciric B, Ventura E, Shindler KS, Gran B, Rostami A. Bowman-Birk inhibitor suppresses autoimmune inflammation and neuronal loss in a mouse model of multiple sclerosis. J Neurol Sci 2008; 271:191-202. [PMID: 18544456 DOI: 10.1016/j.jns.2008.04.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2008] [Revised: 04/11/2008] [Accepted: 04/22/2008] [Indexed: 12/25/2022]
Abstract
The Bowman-Birk inhibitor (BBI) is a soybean-derived serine protease inhibitor. BBI concentrate (BBIC) is an extract enriched with BBI, but predominantly contains other ingredients including several protease inhibitors. We previously found that BBIC administration to Lewis rats with experimental autoimmune encephalomyelitis (EAE) significantly suppresses disease. In the present study we determined whether BBI mediates the suppressive effects of BBIC in EAE, evaluated its potential neuroprotective effects, and investigated mechanisms of BBI action. We tested effects of purified BBI on clinical and histopathological parameters of EAE in two models (relapsing/remitting EAE in SJL/J mice and chronic EAE in C57BL/6 mice). Effects of BBI were compared to BBIC in relapsing/remitting EAE, and effects of BBI on neuronal survival were examined during acute optic neuritis. Treatment with BBI in both EAE models significantly improved EAE disease parameters (onset, severity, weight loss, inflammation and demyelination). BBI significantly reduced the incidence of optic neuritis and prevented loss of retinal ganglion cells. In most experiments proliferation of immune cells derived from BBI-treated mice was significantly lower relative to control groups. Using Boyden's chamber assay we found that BBI inhibited invasiveness of activated splenocytes through the matrigel barrier. BBI also induced higher production of EAE-suppressive cytokine IL-10 by immune cells. These results demonstrate that BBI is the active component of BBIC that ameliorates clinical EAE. BBI reduces inflammation and attenuates neuronal loss, making it an excellent candidate for oral therapy in MS. BBI likely ameliorates EAE by inhibiting multiple pathways involved in disease pathogenesis.
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Affiliation(s)
- Tarik Touil
- Department of Neurology, Thomas Jefferson University, Jefferson Hospital for Neuroscience, 900 Walnut Street, Suite 300, Philadelphia, PA 19107, USA
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Hernández-Ledesma B, de Lumen BO. Lunasin: a novel cancer preventive seed Peptide. PERSPECTIVES IN MEDICINAL CHEMISTRY 2008; 2:75-80. [PMID: 19787099 PMCID: PMC2746573 DOI: 10.4137/pmc.s372] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cancer is one of the leading causes of deaths in the Western world. Approximately one-third of these deaths are preventable by lifestyle factors, including modification of nutritional habits. Studies have demonstrated that adequate nutrition with certain types of foods containing bioactive compounds might offer significant protection against carcinogenesis. Soybeans contain a variety of phytochemicals with demonstrated anticancer activity, including isoflavones, protease inhibitors, and more recently lunasin, a novel cancer preventive seed peptide. Initially isolated from soybean, lunasin has also been reported in barley and wheat. The purpose of this review is to summarize the most recent evidence on the possible benefits of lunasin for cancer prevention.
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Affiliation(s)
- Blanca Hernández-Ledesma
- Department of Nutritional Sciences and Toxicology, University of California Berkeley, CA, 94720-3104, U.S.A
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Park JH, Jeong HJ, Lumen BOD. In vitro digestibility of the cancer-preventive soy peptides lunasin and BBI. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2007; 55:10703-10706. [PMID: 18038984 DOI: 10.1021/jf072107c] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Lunasin and BBI (Bowman Birk protease inhibitor) are bioactive soy peptides that have been shown to be effective suppressors of carcinogenesis in in vitro and in vivo model systems. Since they are subject to digestion in the gastrointestinal tract, we investigated here the stabilities of lunasin and BBI to digestion in vitro by simulated intestinal fluid (SIF) and simulated gastric fluid (SGF). Samples containing lunasin and BBI of varying purities were subjected to in vitro digestion by SIF and SGF at different times and analyzed by Western blot. While the pure BBI reaction is stable after SIF and SGF digestions, the purified lunasin from soybean and synthetic lunasin are easily digested after 2 min in both in vitro digestions. In contrast, lunasin from soy protein containing BBI is comparatively stable after SIF and SGF digestions. Both lunasin and BBI are able to internalize into the cell and localize in the nucleus even after digestion, suggesting that some of the peptides are intact and bioactive. These data suggest that BBI plays a role in protecting lunasin from digestion when soy protein is consumed orally. The role of other soy protease inhibitors such as Kunitz Trypsin Inhibitor (KTI) cannot be excluded from these experiments.
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Affiliation(s)
- Jae Ho Park
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, California 94720-3104, USA
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18
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Capaldi S, Perduca M, Faggion B, Carrizo ME, Tava A, Ragona L, Monaco HL. Crystal structure of the anticarcinogenic Bowman-Birk inhibitor from snail medic (Medicago scutellata) seeds complexed with bovine trypsin. J Struct Biol 2006; 158:71-9. [PMID: 17142058 DOI: 10.1016/j.jsb.2006.10.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2006] [Revised: 10/10/2006] [Accepted: 10/10/2006] [Indexed: 11/22/2022]
Abstract
The structure of the ternary complex of the anticarcinogenic Bowman-Birk protease inhibitor purified from snail medic (Medicago scutellata) seeds (MSTI) and two molecules of bovine trypsin has been solved by X-ray diffraction analysis of single crystals to a resolution of 2.0 A. This is the highest resolution model of a ternary complex of this type currently available. The two binding loops of the MSTI differ in only one amino acid and have in both cases an arginine in position P1. The distances between the residues of the inhibitor at the binding interface and the trypsin side chains that recognize them are almost identical in the two sites. When compared to the NMR model of the uncomplexed MSTI, the inhibitor in the functional assembly with trypsin shows the largest differences in the two P2' residues. Compared with the similar ternary complex of the soybean trypsin inhibitor, this model shows very small differences in the polypeptide chain of the trypsin binding sites and its largest difference in the area between Asp 26 and His 32 of the MSTI which in the soybean inhibitor has an extra Leu inserted in position 29.
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Affiliation(s)
- Stefano Capaldi
- Biocrystallography Laboratory, Department of Science and Technology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
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Wang W, de Mejia EG. A New Frontier in Soy Bioactive Peptides that May Prevent Age-related Chronic Diseases. Compr Rev Food Sci Food Saf 2005; 4:63-78. [DOI: 10.1111/j.1541-4337.2005.tb00075.x] [Citation(s) in RCA: 265] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Stawikowski M, Stawikowska R, Jaśkiewicz A, Zabłotna E, Rolka K. Examples of peptide-peptoid hybrid serine protease inhibitors based on the trypsin inhibitor SFTI-1 with complete protease resistance at the P1-P1' reactive site. Chembiochem 2005; 6:1057-61. [PMID: 15883970 DOI: 10.1002/cbic.200400412] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Research in the field of protease inhibitors is focused on obtaining potent, specific and protease-resistant inhibitors. To our knowledge, there are no reports in the literature that consider the application of N-substituted glycine residues (peptoid monomers) for the design of peptidomimetic protease inhibitors. We hereby present the chemical synthesis and kinetic properties of two new analogues of the trypsin inhibitor SFTI-1 modified at the P1 position. Substitution of Lys5 in SFTI-1 by N-(4-aminobutyl)-glycine and N-benzylglycine, which mimic Lys and Phe, respectively, made these analogues completely protease-resistant at their P1-P1' reactive sites. The analogues synthesised appeared to be potent inhibitors of bovine beta-trypsin and alpha-chymotrypsin. These noncovalent, competitive and selective peptide-peptoid hybrid (peptomeric) inhibitors might open the way to targeting unwanted proteolysis.
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Affiliation(s)
- Maciej Stawikowski
- Department of Bioorganic Chemistry, Faculty of Chemistry, University of Gdansk, Sobieskiego 18 St., 80-523 Gdansk, Poland
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de Mejía EG, Guzmán-Maldonado SH, Acosta-Gallegos JA, Reynoso-Camacho R, Ramírez-Rodríguez E, Pons-Hernández JL, González-Chavira MM, Castellanos JZ, Kelly JD. Effect of cultivar and growing location on the trypsin inhibitors, tannins, and lectins of common beans (Phaseolus vulgaris L.) grown in the semiarid highlands of Mexico. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2003; 51:5962-5966. [PMID: 13129302 DOI: 10.1021/jf030046m] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Trypsin inhibitors (TI), tannins, and lectins appear to have a role in preventing chronic diseases in humans. The genetic variability of these traits in common bean needs to be ascertained in order to increase levels through breeding. The variability of TI, tannin, and lectins was determined in five bean cultivars grown at five locations in Mexico. TI and tannins contents in colored beans that belong to the Jalisco race were higher (11.1-11.9 trypsin units inhibited (TUI)/mg and 29.0-38.1 mg catechin equivalent (CE)/g, respectively) than cultivars of the Durango race (7.9-8.3 TUI/mg and 16.8-19.9 CE/mg, respectively). Bayo Victoria, a Durango race cultivar, had three times more lectins than levels reported for soybean. Cultivar influenced TI and tannins contents (p < 0.001), whereas site affected lectins (p < 0.001). An increase in levels of TI and tannins could be enhanced through breeding.
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Affiliation(s)
- Elvira G de Mejía
- Department of Food Science & Human Nutrition, University of Illinois at Urbana-Champaign, IL, USA
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McGuire JJ, Triggle CR. Searching for the physiological role and therapeutic potential of vascular proteinase-activated receptor-2 (PAR2). Drug Dev Res 2003. [DOI: 10.1002/ddr.10314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Johnson MD, Oberst MD, Lin CY, Dickson RB. Possible role of matriptase in the diagnosis of ovarian cancer. Expert Rev Mol Diagn 2003; 3:331-8. [PMID: 12779007 DOI: 10.1586/14737159.3.3.331] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
There are increasing data that suggest a role for the serine protease matriptase and its inhibitor, hepatocyte growth factor activator inhibitor-1, in the pathogenesis and progression of ovarian cancer. This review will discuss the matriptase/inhibitor system in the context of ovarian cancer and examine the possibility that this system might be a useful therapeutic and/or diagnostic target in this disease.
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Affiliation(s)
- Michael D Johnson
- Department of Oncology, Lombardi Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA.
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