1
|
Zhang H, Qiao Q, Zhao Y, Zhang L, Shi J, Wang N, Li Z, Shan S. Expression and Purification of Recombinant Bowman-Birk Trypsin Inhibitor from Foxtail Millet Bran and Its Anticolorectal Cancer Effect In Vitro and In Vivo. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:10439-10450. [PMID: 38676695 DOI: 10.1021/acs.jafc.3c08711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/29/2024]
Abstract
Trypsin inhibitors derived from plants have various pharmacological activities and promising clinical applications. In our previous study, a Bowman-Birk-type major trypsin inhibitor from foxtail millet bran (FMB-BBTI) was extracted with antiatherosclerotic activity. Currently, we found that FMB-BBTI possesses a prominent anticolorectal cancer (anti-CRC) activity. Further, a recombinant FMB-BBTI (rFMB-BBTI) was successfully expressed in a soluble manner in host strain Escherichia coli. BL21 (DE3) was induced by isopropyl-β-d-thiogalactoside (0.1 mM) at 37 °C for 3.5 h by the pET28a vector system. Fortunately, a purity greater than 93% of rFMB-BBTI with anti-CRC activity was purified by nickel-nitrilotriacetic acid affinity chromatography. Subsequently, we found that rFMB-BBTI displays a strikingly anti-CRC effect, characterized by the inhibition of cell proliferation and clone formation ability, cell cycle arrest at the G2/M phase, and induction of cell apoptosis. It is interesting that the rFMB-BBTI treatment had no obvious effect on normal colorectal cells in the same concentration range. Importantly, the anti-CRC activity of rFMB-BBTI was further confirmed in the xenografted nude mice model. Taken together, our study highlights the anti-CRC activity of rFMB-BBTI in vitro and in vivo, uncovering the clinical potential of rFMB-BBTI as a targeted agent for CRC in the future.
Collapse
Affiliation(s)
- Huimin Zhang
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Qinqin Qiao
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Yaru Zhao
- School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Lizhen Zhang
- School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Jiangying Shi
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Nifei Wang
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Zhuoyu Li
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Shuhua Shan
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
| |
Collapse
|
2
|
Lin Z, Yi X, Ali MM, Zhang L, Wang S, Tian S, Chen F. RNAi-Mediated Suppression of OsBBTI5 Promotes Salt Stress Tolerance in Rice. Int J Mol Sci 2024; 25:1284. [PMID: 38279284 PMCID: PMC10816146 DOI: 10.3390/ijms25021284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/14/2024] [Accepted: 01/16/2024] [Indexed: 01/28/2024] Open
Abstract
This study explores the impact of RNAi in terms of selectively inhibiting the expression of the OsBBTI5 gene, with the primary objective of uncovering its involvement in the molecular mechanisms associated with salt tolerance in rice. OsBBTI5, belonging to the Bowman-Birk inhibitor (BBI) family gene, is known for its involvement in plant stress responses. The gene was successfully cloned from rice, exhibiting transcriptional self-activation in yeast. A yeast two-hybrid assay confirmed its specific binding to OsAPX2 (an ascorbate peroxidase gene). Transgenic OsBBTI5-RNAi plants displayed insensitivity to varying concentrations of 24-epibrassinolide in the brassinosteroid sensitivity assay. However, they showed reduced root and plant height at high concentrations (10 and 100 µM) of GA3 immersion. Enzyme activity assays revealed increased peroxidase (POD) and superoxide dismutase (SOD) activities and decreased malondialdehyde (MDA) content under 40-60 mM NaCl. Transcriptomic analysis indicated a significant upregulation of photosynthesis-related genes in transgenic plants under salt stress compared to the wild type. Notably, this study provides novel insights, suggesting that the BBI gene is part of the BR signaling pathway, and that OsBBTI5 potentially enhances stress tolerance in transgenic plants through interaction with the salt stress-related gene OsAPX2.
Collapse
Affiliation(s)
- Zhimin Lin
- Fujian Academy of Agricultural Sciences Biotechnology Institute, Fuzhou 350003, China
| | - Xiaoyan Yi
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (X.Y.); (M.M.A.); (L.Z.); (S.W.); (S.T.)
| | - Muhammad Moaaz Ali
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (X.Y.); (M.M.A.); (L.Z.); (S.W.); (S.T.)
| | - Lijuan Zhang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (X.Y.); (M.M.A.); (L.Z.); (S.W.); (S.T.)
| | - Shaojuan Wang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (X.Y.); (M.M.A.); (L.Z.); (S.W.); (S.T.)
| | - Shengnan Tian
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (X.Y.); (M.M.A.); (L.Z.); (S.W.); (S.T.)
| | - Faxing Chen
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (X.Y.); (M.M.A.); (L.Z.); (S.W.); (S.T.)
| |
Collapse
|
3
|
Kusumah J, Gonzalez de Mejia E. Impact of soybean bioactive compounds as response to diet-induced chronic inflammation: A systematic review. Food Res Int 2022; 162:111928. [DOI: 10.1016/j.foodres.2022.111928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 11/04/2022]
|
4
|
SAXS Analysis and Characterization of Anticancer Activity of PNP-UDP Family Protein from Putranjiva roxburghii. Protein J 2022; 41:381-393. [PMID: 35674860 DOI: 10.1007/s10930-022-10060-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/29/2022] [Indexed: 10/18/2022]
Abstract
A class of plant defense and storage proteins, including Putranjiva roxburghii PNP protein (PRpnp), belongs to PNP-UDP family. The PRpnp and related plant proteins contain a disrupted PNP-UDP domain as revealed in previous studies. In PRpnp, the insert disrupting the domain contains the trypsin inhibitory site. In the present work, we analyzed native PRpnp (nPRpnp) complex formation with trypsin and inosine using SAXS experiments and established its dual functionality. Results indicated a relatively compact nPRpnp:Inosine structure, whereas trypsin complex showed conformational changes/flexibility. nPRpnp also exhibited a strong anti-cancer activity toward breast cancer (MCF-7), prostate cancer (DU-145) and hepatocellular carcinoma (HepG2) cell lines. MCF-7 and DU-145 were more sensitive to nPRpnp treatment as compared to HepG2. However, nPRpnp treatment showed no effect on the viability of HEK293 cells indicating that nPRpnp is specific for targeting the viability of only cancer cells. Further, acridine orange, DAPI and DNA fragmentation studies showed that cytotoxic effect of nPRpnp is mediated through induction of apoptosis as evident from the apoptosis-associated morphological changes and nuclear fragmentation observed after PRpnp treatment of cancer cells. These results suggest that PRpnp has the potential to be used as an anticancer agent. This is first report of anticancer activity as well as SAXS-based analysis for a PNP enzyme with trypsin inhibitory activity.
Collapse
|
5
|
Swallah MS, Yang X, Li J, Korese JK, Wang S, Fan H, Yu H, Huang Q. The Pros and Cons of Soybean Bioactive Compounds: An Overview. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2022.2062763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Mohammed Sharif Swallah
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- Processing, Soybean Research & Development Centre, Chinese Agricultural Research SystemDivision of Soybean, Changchun, China
- Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, China
- Laboratory of High Magnetic Field and Iron Beam Physical Biology, Institute of Intelligent Agriculture, Institute of Intelligent Machines, Hefei Institute of Physical Sciences, Chinese Academy of SciencesCAS Key, Hefei, China
| | - Xiaoqing Yang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- Processing, Soybean Research & Development Centre, Chinese Agricultural Research SystemDivision of Soybean, Changchun, China
| | - Jiaxin Li
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- Processing, Soybean Research & Development Centre, Chinese Agricultural Research SystemDivision of Soybean, Changchun, China
| | - Joseph Kudadam Korese
- Agricultural Mechanization and Irrigation Technology, Faculty of Agriculture, Food and Consumer Sciences, University for Development StudiesDepartment of, Tamale, Ghana
| | - Sainan Wang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- Processing, Soybean Research & Development Centre, Chinese Agricultural Research SystemDivision of Soybean, Changchun, China
| | - Hongliang Fan
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- Processing, Soybean Research & Development Centre, Chinese Agricultural Research SystemDivision of Soybean, Changchun, China
| | - Hansong Yu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- Processing, Soybean Research & Development Centre, Chinese Agricultural Research SystemDivision of Soybean, Changchun, China
| | - Qing Huang
- Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, China
- Laboratory of High Magnetic Field and Iron Beam Physical Biology, Institute of Intelligent Agriculture, Institute of Intelligent Machines, Hefei Institute of Physical Sciences, Chinese Academy of SciencesCAS Key, Hefei, China
| |
Collapse
|
6
|
Cid-Gallegos MS, Corzo-Ríos LJ, Jiménez-Martínez C, Sánchez-Chino XM. Protease Inhibitors from Plants as Therapeutic Agents- A Review. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2022; 77:20-29. [PMID: 35000105 DOI: 10.1007/s11130-022-00949-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/28/2021] [Indexed: 05/18/2023]
Abstract
Plant-based diets are a great source of protease inhibitors (PIs). Two of the most well-known families of PIs are Bowman-Birk inhibitors (BBI) and Kunitz-type inhibitors (KTI). The first group acts mainly on trypsin, chymotrypsin, and elastase; the second is on serine, cysteine, and aspartic proteases. PIs can retard or inhibit the catalytic action of enzymes; therefore, they are considered non-nutritional compounds; nevertheless, animal studies and cell line experiments showed promising results of PIs in treating human illnesses such as obesity, cardiovascular diseases, autoimmune diseases, inflammatory processes, and different types of cancer (gastric, colorectal, breast, and lung cancer). Anticarcinogenic activity's proposed mechanisms of action comprise several inhibitory effects at different molecular levels, i.e., transcription, post-transcription, translation, post-translation, and secretion of cancer cells. This work reviews the potential therapeutic applications of PIs as anticarcinogenic and anti-inflammatory agents in human diseases and the mechanisms by which they exert these effects.
Collapse
Affiliation(s)
- M S Cid-Gallegos
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional. Unidad Profesional Adolfo López Mateos, Delegación Gustavo A. Madero, Av. Wilfrido Massieu Esq. Cda. Miguel Stampa s/n, México City, C.P. 07738, México
| | - L J Corzo-Ríos
- Departamento de Bioprocesos, Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional. Av. Acueducto S/N, Barrio La Laguna, Col. Ticomán, México City, C.P. 07340, México
| | - C Jiménez-Martínez
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional. Unidad Profesional Adolfo López Mateos, Delegación Gustavo A. Madero, Av. Wilfrido Massieu Esq. Cda. Miguel Stampa s/n, México City, C.P. 07738, México
| | - X M Sánchez-Chino
- CONACYT, Departamento de Salud, El Colegio de La Frontera Sur-Villahermosa, Tabasco, México.
| |
Collapse
|
7
|
Sato A, da Fonseca IIM, Nagamine MK, de Toledo GF, Olio R, Hernandez-Blazquez FJ, Yano T, Yeh ES, Dagli MLZ. Effects of Alpha-Connexin Carboxyl-Terminal Peptide (aCT1) and Bowman-Birk Protease Inhibitor (BBI) on Canine Oral Mucosal Melanoma (OMM) Cells. Front Vet Sci 2021; 8:670451. [PMID: 34179163 PMCID: PMC8222509 DOI: 10.3389/fvets.2021.670451] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 05/11/2021] [Indexed: 11/22/2022] Open
Abstract
Oral mucosal melanomas (OMM) are aggressive cancers in dogs, and are good models for human OMM. Gap junctions are composed of connexin units, which may have altered expression patterns and/or subcellular localization in cancer cells. Cell-to-cell communication by gap junctions is often impaired in cancer cells, including in melanomas. Meanwhile, the upregulated expression of the gap junction protein connexin 43 (Cx43) inhibits melanoma progression. The α-connexin carboxyl-terminal (aCT1) peptide reportedly maintains Cx43 expression and cell-cell communication in human mammary cells and increases the communication activity through gap junctions in functional assays, therefore causing decreased cell proliferation. The Bowman-Birk protease inhibitor (BBI), a component of soybeans, induces Cx43 expression in several tumor cells as a trypsin–chymotrypsin inhibition function, with antineoplastic effects. This study investigated the effect of aCT1 peptide and BBI treatment, alone or in combination, on TLM1 canine melanoma cell viability. Cell viability after treatment with aCT1, the reverse sequence peptide (R-pep), and/or BBI for 5 days was analyzed by PrestoBlue assay. Immunofluorescence was used to observe Cx43 localization and expression. aCT1 (200 μM) alone did not significantly decrease cell viability in TLM1 cells, whereas BBI (400 μg/ml) alone significantly decreased the TLM1 viability. Combined treatment with both aCT1 (200 μM) and BBI (400 μg/ml) significantly decreased cell viability in TLM1 cells. Cx43 expression, as identified by immunostainings in TLM1 cells, was increased in the cell membrane after the combination treatment with BBI and aCT1. This dual treatment can be combined to achieve the anticancer activity, possibly by increasing Cx 43 expression and affecting Cx43 migration to the cell membrane. In conclusion, a treatment strategy targeting Cx43 with BBI and aCT1 may possibly lead to new effective therapies for canine OMM.
Collapse
Affiliation(s)
- Ayami Sato
- School of Veterinary Medicine and Animal Science of the University of São Paulo, São Paulo, Brazil.,Institute of Life Innovation Studies, Toyo University, Tokyo, Japan
| | | | - Márcia Kazumi Nagamine
- School of Veterinary Medicine and Animal Science of the University of São Paulo, São Paulo, Brazil
| | | | - Rennan Olio
- School of Veterinary Medicine and Animal Science of the University of São Paulo, São Paulo, Brazil
| | | | - Tomohiro Yano
- Institute of Life Innovation Studies, Toyo University, Tokyo, Japan
| | - Elizabeth Shinmay Yeh
- Department of Pharmacology and Toxicology, Simon Comprehensive Cancer Center, School of Medicine, Indiana University, Indianapolis, IN, United States
| | - Maria Lucia Zaidan Dagli
- School of Veterinary Medicine and Animal Science of the University of São Paulo, São Paulo, Brazil
| |
Collapse
|
8
|
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]
|
9
|
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: 36] [Impact Index Per Article: 9.0] [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.
Collapse
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.)
| |
Collapse
|
10
|
Zhang C, Fang H, Shi X, He F, Wang R, Fan J, Bai P, Wang J, Park C, Bellizzi M, Zhou X, Wang G, Ning Y. A fungal effector and a rice NLR protein have antagonistic effects on a Bowman-Birk trypsin inhibitor. PLANT BIOTECHNOLOGY JOURNAL 2020; 18:2354-2363. [PMID: 32415911 PMCID: PMC7589341 DOI: 10.1111/pbi.13400] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 03/24/2020] [Accepted: 04/27/2020] [Indexed: 05/25/2023]
Abstract
Bowman-Birk trypsin inhibitors (BBIs) play important roles in animal and plant immunity, but how these protease inhibitors are involved in the immune system remains unclear. Here, we show that the rice (Oryza sativa) BBI protein APIP4 is a common target of a fungal effector and an NLR receptor for innate immunity. APIP4 exhibited trypsin inhibitor activity in vitro and in vivo. Knockout of APIP4 in rice enhanced susceptibility, and overexpression of APIP4 increased resistance to the fungal pathogen Magnaporthe oryzae. The M. oryzae effector AvrPiz-t interacted with APIP4 and suppressed APIP4 trypsin inhibitor activity. By contrast, the rice NLR protein Piz-t interacted with APIP4, enhancing APIP4 transcript and protein levels, and protease inhibitor activity. Our findings reveal a novel host defence mechanism in which a host protease inhibitor targeted by a fungal pathogen is protected by an NLR receptor.
Collapse
Affiliation(s)
- Chongyang Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing100193China
- Department of Plant PathologyOhio State UniversityColumbusOH43210USA
| | - Hong Fang
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing100193China
| | - Xuetao Shi
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing100193China
| | - Feng He
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing100193China
| | - Ruyi Wang
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing100193China
| | - Jiangbo Fan
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing100193China
- Department of Plant PathologyOhio State UniversityColumbusOH43210USA
| | - Pengfei Bai
- Department of Plant PathologyOhio State UniversityColumbusOH43210USA
| | - Jiyang Wang
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing100193China
| | - Chan‐Ho Park
- Department of Plant PathologyOhio State UniversityColumbusOH43210USA
| | - Maria Bellizzi
- Department of Plant PathologyOhio State UniversityColumbusOH43210USA
| | - Xueping Zhou
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing100193China
| | - Guo‐Liang Wang
- Department of Plant PathologyOhio State UniversityColumbusOH43210USA
| | - Yuese Ning
- State Key Laboratory for Biology of Plant Diseases and Insect PestsInstitute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing100193China
| |
Collapse
|
11
|
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.
Collapse
|
12
|
Aranda-Olmedo I, Rubio LA. Dietary legumes, intestinal microbiota, inflammation and colorectal cancer. J Funct Foods 2020. [DOI: 10.1016/j.jff.2019.103707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
|
13
|
Sadeghalvad M, Mohammadi-Motlagh HR, Karaji AG, Mostafaie A. In vivo anti-inflammatory efficacy of the combined Bowman-Birk trypsin inhibitor and genistein isoflavone, two biological compounds from soybean. J Biochem Mol Toxicol 2019; 33:e22406. [PMID: 31593353 DOI: 10.1002/jbt.22406] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 09/08/2019] [Accepted: 09/20/2019] [Indexed: 01/31/2023]
Abstract
Soybean Bowman-Birk protease inhibitor (BBI) and genistein, two biological compounds from soybean, are well-known for their anti-inflammatory, antioxidant, and anticancer activities. The aim of this study was designing a BBI-genistein conjugate and then investigating its protective effect on lipopolysaccharide (LPS)-induced inflammation in BALB/c mice, compared with the effects of combination of BBI and genistein. BBI was purified from soybean and the BBI-genistein conjugate was synthesized. The BALB/c mice were intraperitoneally treated 2 hours before LPS induction. Our results showed that treatment with the combination of BBI and genistein greatly led to more reduced serum levels of tumor necrosis factor (TNF)-α and interferon (IFN)-γ compared with the treatments of BBI alone, the BBI-genistein conjugate, and genistein alone, respectively. Moreover, the expression of TNF-α and IFN-γ in the splenocytes was significantly downregulated along with improving host survival against the LPS-induced lethal endotoxemia in the same way. Our data support a new combined therapy using BBI and genistein, as natural anti-inflammatory agents, to develop a new drug for inflammatory diseases.
Collapse
Affiliation(s)
- Mona Sadeghalvad
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | | | - Ali Gorgin Karaji
- 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
| |
Collapse
|
14
|
Akbari S, Akrami H, Mostafaei A, Kiani S. Bowman-Birk inhibitor modifies transcription of autophagy and apoptosis genes in an in vitro model of Alzheimer's disorder. J Cell Biochem 2019; 120:11150-11157. [PMID: 30860639 DOI: 10.1002/jcb.28391] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 12/23/2018] [Accepted: 01/10/2019] [Indexed: 01/24/2023]
Abstract
Alzheimer, a current neurodegenerative disorder has adverse effects on memory and behavior. β-Amyloid peptide accumulations are the hallmarks of Alzheimer. Dysfunction of autophagy and apoptosis is detected in Alzheimer's disease. The effect of Bowman-Birk inhibitor (BBI), purified from soybean, was investigated in autophagy and apoptosis in Alzheimer treatment. Treated-PC12 cells with 1000 nM HgCl2 induced amyloid β (Aβ) accumulation. Treatment of PC12 cells with 1000 nM HgCl 2 and then 500 μg/mL BBI could decrease the expression ratio of Bax/Bcl2 and increase the expression of beclin1, Bnip3, Atg5, and autophagy-related genes. These results indicated that BBI could inhibit Aβ accumulation by inducing autophagy, and also the neuroprotective effect was detected through decreasing apoptosis in the in vitro model of Alzheimer's disease. These results provided further evidence for the potential effectiveness of BBI in the treatment of Alzheimer's disease.
Collapse
Affiliation(s)
- Samaneh Akbari
- Department of Biology, Faculty of Science, Razi University, Kermanshah, Iran
| | - Hassan Akrami
- Department of Biology, Faculty of Science, Razi University, Kermanshah, Iran
| | - Ali Mostafaei
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sudabeh Kiani
- Department of Biology, Faculty of Science, Razi University, Kermanshah, Iran
| |
Collapse
|
15
|
Chen S, Hsieh C. Chemoprevention by means of soy proteins and peptides – current status and future approaches: a review. Int J Food Sci Technol 2018. [DOI: 10.1111/ijfs.14053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sheng‐I Chen
- Department of Industrial Engineering and Management National Chiao Tung University Hsinchu 30080 Taiwan
| | - Chia‐Chien Hsieh
- School of Life Science Programs of Nutrition Science National Taiwan Normal University Taipei 10610 Taiwan
| |
Collapse
|
16
|
Bowman‒Birk Inhibitor Suppresses Herpes Simplex Virus Type 2 Infection of Human Cervical Epithelial Cells. Viruses 2018; 10:v10100557. [PMID: 30322047 PMCID: PMC6213026 DOI: 10.3390/v10100557] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 10/09/2018] [Accepted: 10/10/2018] [Indexed: 12/18/2022] Open
Abstract
The Bowman‒Birk inhibitor (BBI), a protease inhibitor derived from soybeans, has been extensively studied in anti-tumor and anti-inflammation research. We recently reported that BBI has an anti-HIV-1 property in primary human macrophages. Because HSV-2 infection plays a role in facilitating HIV-1 sexual transmission, we thus examined whether BBI has the ability to inhibit HSV-2 infection. We demonstrated that BBI could potently inhibit HSV-2 replication in human cervical epithelial cells (End1/E6E7). This BBI-mediated HSV-2 inhibition was partially through blocking HSV-2-mediated activation of NF-κB and p38 MAPK pathways. In addition, BBI could activate the JAK/STAT pathway and enhance the expression of several antiviral interferon-stimulated genes (ISGs). Furthermore, BBI treatment of End1/E6E7 cells upregulated the expression of tight junction proteins and reduced HSV-2-mediated cellular ubiquitinated proteins’ degradation through suppressing the ubiquitin‒proteasome system. These observations indicate that BBI may have therapeutic potential for the prevention and treatment of HSV-2 infections.
Collapse
|
17
|
Chatterjee C, Gleddie S, Xiao CW. Soybean Bioactive Peptides and Their Functional Properties. Nutrients 2018; 10:E1211. [PMID: 30200502 PMCID: PMC6164536 DOI: 10.3390/nu10091211] [Citation(s) in RCA: 236] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 08/27/2018] [Accepted: 08/29/2018] [Indexed: 02/06/2023] Open
Abstract
Soy consumption has been associated with many potential health benefits in reducing chronic diseases such as obesity, cardiovascular disease, insulin-resistance/type II diabetes, certain type of cancers, and immune disorders. These physiological functions have been attributed to soy proteins either as intact soy protein or more commonly as functional or bioactive peptides derived from soybean processing. These findings have led to the approval of a health claim in the USA regarding the ability of soy proteins in reducing the risk for coronary heart disease and the acceptance of a health claim in Canada that soy protein can help lower cholesterol levels. Using different approaches, many soy bioactive peptides that have a variety of physiological functions such as hypolipidemic, anti-hypertensive, and anti-cancer properties, and anti-inflammatory, antioxidant, and immunomodulatory effects have been identified. Some soy peptides like lunasin and soymorphins possess more than one of these properties and play a role in the prevention of multiple chronic diseases. Overall, progress has been made in understanding the functional and bioactive components of soy. However, more studies are required to further identify their target organs, and elucidate their biological mechanisms of action in order to be potentially used as functional foods or even therapeutics for the prevention or treatment of chronic diseases.
Collapse
Affiliation(s)
- Cynthia Chatterjee
- Nutrition Research Division, Food Directorate, Health Products and Food Branch, Health Canada, Banting Research Centre, 251 Sir Frederick Banting Drive, Ottawa, ON K1A 0K9, Canada.
- Ottawa Research & Development Centre, Central Experimental Farm, Agriculture and Agri-Food Canada, 960 Carling Avenue Building#21, Ottawa, ON K1A 0C6, Canada.
| | - Stephen Gleddie
- Ottawa Research & Development Centre, Central Experimental Farm, Agriculture and Agri-Food Canada, 960 Carling Avenue Building#21, Ottawa, ON K1A 0C6, Canada.
| | - Chao-Wu Xiao
- Nutrition Research Division, Food Directorate, Health Products and Food Branch, Health Canada, Banting Research Centre, 251 Sir Frederick Banting Drive, Ottawa, ON K1A 0K9, Canada.
- Food and Nutrition Science Program, Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada.
| |
Collapse
|
18
|
Juritsch AF, Moreau R. Role of soybean-derived bioactive compounds in inflammatory bowel disease. Nutr Rev 2018; 76:618-638. [PMID: 29800381 DOI: 10.1093/nutrit/nuy021] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic, inflammatory condition of the gastrointestinal tract. Patients with IBD present with debilitating symptoms that alter the quality of life and can develop into severe complications requiring surgery. Epidemiological evidence indicates Westernized societies have an elevated IBD burden when compared with Asian societies. Considering the stark contrast between the typical Western and Eastern dietary patterns, it is postulated that differences in food and lifestyle contribute to lower IBD incidence in Asian countries. Soybeans (Glycine max), which are consumed in high quantities and as various preparations in Eastern societies, contain a wealth of natural, biologically active compounds that include isoflavones, bioactive peptides, protease inhibitors, and phytosterols, among many others. These compounds have been shown to improve human health, and preclinical evidence suggests they have potential to improve the prognosis of IBD. This review summarizes the current state of evidence regarding the effects and the mechanisms of action of these soybean-derived bioactive compounds in experimental models of IBD.
Collapse
Affiliation(s)
- Anthony F Juritsch
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Régis Moreau
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| |
Collapse
|
19
|
Martins TF, Vasconcelos IM, Silva RGG, Silva FDA, Souza PFN, Varela ALN, Albuquerque LM, Oliveira JTA. A Bowman-Birk Inhibitor from the Seeds of Luetzelburgia auriculata Inhibits Staphylococcus aureus Growth by Promoting Severe Cell Membrane Damage. JOURNAL OF NATURAL PRODUCTS 2018; 81:1497-1507. [PMID: 29927595 DOI: 10.1021/acs.jnatprod.7b00545] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Staphylococcus aureus is a multidrug-resistant bacterium responsible for several cases of hospital-acquired infections, which constitute a global public health problem. The introduction of new healthcare strategies and/or the discovery of molecules capable of inhibiting the growth or killing S. aureus would have a huge impact on the treatment of S. aureus-mediated diseases. Herein, a Bowman-Birk protease inhibitor ( LzaBBI), with strong in vitro antibacterial activity against S. aureus, was purified to homogeneity from Luetzelburgia auriculata seeds. LzaBBI in its native form is a 14.3 kDa protein and has a pI of 4.54, and its NH2-terminal sequence has high identity with other Bowman-Birk inhibitors. LzaBBI showed a mixed-type inhibitory activity against both trypsin and chymotrypsin, respectively, and it remained stable after both boiling at 98 °C for 120 min and incubation at various pHs. Scanning electron microscopy revealed that LzaBBI disrupted the S. aureus membrane integrity, leading to bacterial death. This study suggests that LzaBBI is a powerful candidate for developing a new antimicrobial to overcome drug resistance toward reducing hospital-acquired infections caused by S. aureus.
Collapse
Affiliation(s)
- Thiago F Martins
- Laboratory of Plant Defense, Department of Biochemistry and Molecular Biology , Federal University of Ceara (UFC) , Avenida Mister Hull , 60451-970 , Fortaleza , Ceara , Brazil
| | - Ilka M Vasconcelos
- Laboratory of Plant Defense, Department of Biochemistry and Molecular Biology , Federal University of Ceara (UFC) , Avenida Mister Hull , 60451-970 , Fortaleza , Ceara , Brazil
| | - Rodolpho G G Silva
- Laboratory of Plant Defense, Department of Biochemistry and Molecular Biology , Federal University of Ceara (UFC) , Avenida Mister Hull , 60451-970 , Fortaleza , Ceara , Brazil
| | - Fredy D A Silva
- Laboratory of Plant Defense, Department of Biochemistry and Molecular Biology , Federal University of Ceara (UFC) , Avenida Mister Hull , 60451-970 , Fortaleza , Ceara , Brazil
| | - Pedro F N Souza
- Laboratory of Plant Defense, Department of Biochemistry and Molecular Biology , Federal University of Ceara (UFC) , Avenida Mister Hull , 60451-970 , Fortaleza , Ceara , Brazil
| | - Anna L N Varela
- Laboratory of Plant Defense, Department of Biochemistry and Molecular Biology , Federal University of Ceara (UFC) , Avenida Mister Hull , 60451-970 , Fortaleza , Ceara , Brazil
| | - Louise M Albuquerque
- Laboratory of Plant Defense, Department of Biochemistry and Molecular Biology , Federal University of Ceara (UFC) , Avenida Mister Hull , 60451-970 , Fortaleza , Ceara , Brazil
| | - Jose T A Oliveira
- Laboratory of Plant Defense, Department of Biochemistry and Molecular Biology , Federal University of Ceara (UFC) , Avenida Mister Hull , 60451-970 , Fortaleza , Ceara , Brazil
| |
Collapse
|
20
|
Lima A, Oliveira J, Saúde F, Mota J, Ferreira RB. Proteins in Soy Might Have a Higher Role in Cancer Prevention than Previously Expected: Soybean Protein Fractions Are More Effective MMP-9 Inhibitors Than Non-Protein Fractions, Even in Cooked Seeds. Nutrients 2017; 9:nu9030201. [PMID: 28264435 PMCID: PMC5372864 DOI: 10.3390/nu9030201] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 02/15/2017] [Accepted: 02/20/2017] [Indexed: 02/07/2023] Open
Abstract
The search for anticancer MMP-9 inhibitors (MMPIs) in food products has become a major goal for research. MMPIs in soy have been related only to saponins and isoflavones, but recently, low specific protein fractions in soybeans were shown to reduce MMP-9 activity as well. The present work aimed at comparing the MMPI potential of protein fractions (P) and non-protein fractions (NP) isolated from soybean seeds, before and after soaking and cooking, mimicking dietary exposures. Reverse and substrate zymography, as well as a fluoregenic DQ gelatin assay were used to evaluate MMP-9 activities. Colon cancer cell migration and proliferation was also tested in HT29 cells. Regarding MMP-9 inhibition, proteins in soy presented IC50 values 100 times lower than non-protein extracts, and remained active after cooking, suggesting that proteins may be more effective MMP-9 inhibitors than non-protein compounds. Using the determined IC50 concentrations, NP fractions were able to induce higher inhibitions of HT29 cell migration and proliferation, but not through MMP-9 inhibition, whilst protein fractions were shown to specifically inhibit MMP-9 activity. Overall, our results show that protein fractions in soybeans might have a higher role in soy-related cancer prevention as MMPIs than previously expected. Being nontoxic and active at lower concentrations, the discovery of these heat-resistant specific MMPI proteins in soy can be of significant importance for cancer preventive diets, particularly considering the increasing use of soy proteins in food products and the controversy around isoflavones amongst consumers.
Collapse
Affiliation(s)
- Ana Lima
- Disease & Stress Biology Group, LEAF (Linking Landscape, Environment, Agriculture and Food), Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisbon, Portugal.
| | - Jennifer Oliveira
- Disease & Stress Biology Group, LEAF (Linking Landscape, Environment, Agriculture and Food), Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisbon, Portugal.
| | - Filipe Saúde
- Disease & Stress Biology Group, LEAF (Linking Landscape, Environment, Agriculture and Food), Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisbon, Portugal.
| | - Joana Mota
- Disease & Stress Biology Group, LEAF (Linking Landscape, Environment, Agriculture and Food), Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisbon, Portugal.
| | - Ricardo Boavida Ferreira
- Disease & Stress Biology Group, LEAF (Linking Landscape, Environment, Agriculture and Food), Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisbon, Portugal.
| |
Collapse
|
21
|
Indarte M, Lazza CM, Assis D, Caffini NO, Juliano MA, Avilés FX, Daura X, López LMI, Trejo SA. A Bowman-Birk protease inhibitor purified, cloned, sequenced and characterized from the seeds of Maclura pomifera (Raf.) Schneid. PLANTA 2017; 245:343-353. [PMID: 27778107 DOI: 10.1007/s00425-016-2611-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 10/17/2016] [Indexed: 06/06/2023]
Abstract
A new BBI-type protease inhibitor with remarkable structural characteristics was purified, cloned, and sequenced from seeds of Maclura pomifera , a dicotyledonous plant belonging to the Moraceae family. In this work, we report a Bowman-Birk inhibitor (BBI) isolated, purified, cloned, and characterized from Maclura pomifera seeds (MpBBI), the first of this type from a species belonging to Moraceae family. MpBBI was purified to homogeneity by RP-HPLC, total RNA was extracted from seeds of M. pomifera, and the 3'RACE-PCR method was applied to obtain the cDNA, which was cloned and sequenced. Peptide mass fingerprinting (PMF) analysis showed correspondence between the in silico-translated protein and MpBBI, confirming that it corresponds to a new plant protease inhibitor. The obtained cDNA encoded a polypeptide of 65 residues and possesses 10 cysteine residues, with molecular mass of 7379.27, pI 6.10, and extinction molar coefficient of 9105 M-1 cm-1. MpBBI inhibits strongly trypsin with K i in the 10-10 M range and was stable in a wide array of pH and extreme temperatures. MpBBI comparative modeling was applied to gain insight into its 3D structure and highlighted some distinguishing features: (1) two non-identical loops, (2) loop 1 (CEEESRC) is completely different from any known BBI, and (3) the amount of disulphide bonds is also different from any reported BBI from dicot plants.
Collapse
Affiliation(s)
- Martín Indarte
- PHusisTherapeutics, 3210 Merryfield Row, San Diego, CA, 92121, USA
| | - Cristian M Lazza
- Centro de Investigación de Proteínas Vegetales, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 1900, La Plata, Argentina
| | - Diego Assis
- Departamento de Biofisica, Universidade Federal de São Paulo, Vila Clementino, São Paulo, 04044-020, Brazil
| | - Néstor O Caffini
- Centro de Investigación de Proteínas Vegetales, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 1900, La Plata, Argentina
| | - María A Juliano
- Departamento de Biofisica, Universidade Federal de São Paulo, Vila Clementino, São Paulo, 04044-020, Brazil
| | - Francesc X Avilés
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - Xavier Daura
- Institut de Biotecnologia i de Biomedicina (IBB), Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - Laura M I López
- Instituto de Ciencias de la Salud, Universidad Nacional Arturo Jauretche, 1888 Florencio Varela, Buenos Aires, Argentina.
- CITEC, Gonnet, B1897, Buenos Aires, Argentina.
| | - Sebastián A Trejo
- Laboratorio de Neurofisiología del Instituto Multidisciplinar de Biología Celular (IMBICE), La Plata, B1906APO, Buenos Aires, Argentina.
| |
Collapse
|
22
|
Dia VP, Krishnan HB. BG-4, a novel anticancer peptide from bitter gourd (Momordica charantia), promotes apoptosis in human colon cancer cells. Sci Rep 2016; 6:33532. [PMID: 27628414 PMCID: PMC5024301 DOI: 10.1038/srep33532] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 08/26/2016] [Indexed: 02/08/2023] Open
Abstract
Momordica charantia is a perennial plant with reported health benefits. BG-4, a novel peptide from Momordica charantia, was isolated, purified and characterized. The trypsin inhibitory activity of BG-4 is 8.6 times higher than purified soybean trypsin inhibitor. The high trypsin inhibitory activity of BG-4 may be responsible for its capability to cause cytotoxicity to HCT-116 and HT-29 human colon cancer cells with ED50 values of 134.4 and 217.0 μg/mL after 48 h of treatment, respectively. The mechanism involved in the cytotoxic effect may be associated with induction of apoptosis as evidenced by increased percentage of HCT-116 and HT-29 colon cancer cells undergoing apoptosis from 5.4% (untreated) to 24.8% (BG-4 treated, 125 μg/mL for 16 h) and 8.5% (untreated) to 31.9% (BG-4 treated, 125 μg/mL for 16 h), respectively. The molecular mechanistic explanation in the apoptosis inducing property of BG-4 is due to reduced expression of Bcl-2 and increased expression of Bax leading to increased expression of caspase-3 and affecting the expression of cell cycle proteins p21 and CDK2. This is the first report on the anti-cancer potential of a novel bioactive peptide isolated from Momordica charantia in vitro supporting the potential therapeutic property of BG-4 against colon cancer that must be addressed using in vivo models of colon carcinogenesis.
Collapse
Affiliation(s)
- Vermont P Dia
- Department of Food Science and Technology, The University of Tennessee Institute of Agriculture, Knoxville TN 37996 USA
| | - Hari B Krishnan
- USDA-ARS Plant Genetics Resources Unit, University of Missouri, Columbia, MO 65211 USA
| |
Collapse
|
23
|
Ma X, Hui Y, Lin L, Wu Y, Zhang X, Liu P. Clinical significance of COX-2, GLUT-1 and VEGF expressions in endometrial cancer tissues. Pak J Med Sci 2015; 31:280-4. [PMID: 26101475 PMCID: PMC4476326 DOI: 10.12669/pjms.312.6604] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 12/17/2014] [Accepted: 01/08/2015] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To analyze the clinical significance of COX-2, GLUT-1 and VEGF expressions in endometrial cancer tissues. METHODS One hundred and eight tissue samples from the patients with endometrial cancer enrolled in our hospital from August 2011 to July 2014 were selected, including 60 normal tissue samples (normal group), 60 neoplastic tissue samples (neoplastic group) and 60 cancer tissue samples (cancer group). All the samples were subjected to immunohistochemical assay to detect the expressions of COX-2, GLUT-1 and VEGF. The clinical data were also investigated for correlation analysis. RESULTS The positive rates of COX-2 in normal group, neoplastic group and cancer groups were 3.3%, 21.7% and 55.0% respectively. The positive rates of GLUT-1 in normal group, neoplastic group and cancer groups were 3.3%, 25.0% and 70.0% respectively. The positive rates of VEGF in normal group, neoplastic group and cancer groups were 1.7%, 23.3% and 63.3% respectively. With increasing stage of such cancer, decreasing degree of differentiation and lymphatic metastasis, the positive expression rates of COX-2, GLUT-1 and VEGF proteins were raised significantly (P<0.05). Spearman's correlation analysis showed that the expressions of COX-2 and GLUT-1 (r=0.207, P<0.05), COX-2 and VEGF (r=0.243, P<0.05), as well as GLUT-1 and VEGF (r=0.758, P<0.05) were positively correlated. CONCLUSION COX-2, GLUT-1 and VEGF were highly prominent in endometrial cancer, especially in the patients with low degree of differentiation, late stage and metastasis. They functioned synergistically in the onset and progression of this cancer.
Collapse
Affiliation(s)
- Xiaoping Ma
- Xiaoping Ma, Department of Gynecology and Obstetrics, Qilu Hospital Affiliated to Shandong University, Jinan 250012, Shandong Province, P.R. China. Liaocheng People's Hospital and Clinical Teaching Hospital, Taishan Medical College, Liaocheng 252000, Shandong Province, P.R. China
| | - Yuzuo Hui
- Yuzuo Hui, Department of Neurosurgery, Liaocheng People's Hospital and Clinical Teaching Hospital, Taishan Medical College, Liaocheng 252000, Shandong Province, P.R. China
| | - Li Lin
- Li Lin, Department of Gynecology and Obstetrics, Qilu Hospital Affiliated to Shandong University, Jinan 250012, Shandong Province, P.R. China. Liaocheng People's Hospital and Clinical Teaching Hospital, Taishan Medical College, Liaocheng 252000, Shandong Province, P.R. China
| | - Yu Wu
- Yu Wu, Department of Gynecology and Obstetrics, Liaocheng People's Hospital and Clinical Teaching Hospital, Taishan Medical College, Liaocheng 252000, Shandong Province, P.R. China
| | - Xian Zhang
- Xian Zhang, Department of Gynecology and Obstetrics, Liaocheng People's Hospital and Clinical Teaching Hospital, Taishan Medical College, Liaocheng 252000, Shandong Province, P.R. China
| | - Peishu Liu
- Peishu Liu, Department of Gynecology and Obstetrics, Qilu Hospital Affiliated to Shandong University, Jinan 250012, Shandong Province, P.R. China. Liaocheng People's Hospital and Clinical Teaching Hospital, Taishan Medical College, Liaocheng 252000, Shandong Province, P.R. China
| |
Collapse
|