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Protić-Rosić I, Lopandić Z, Popović D, Blagojević G, Gavrović-Jankulović M. rBet v 1a-BanLec wt induce upregulation of IL-10 and IFN-γ gene expression in Caco-2/THP-1 co-culture and secretion of IL-10 and IFN-γ/IL-4 levels in PBMCs of birch pollen allergic donors. Int Immunopharmacol 2024; 129:111607. [PMID: 38330798 DOI: 10.1016/j.intimp.2024.111607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/19/2024] [Accepted: 01/25/2024] [Indexed: 02/10/2024]
Abstract
Novel allergen immunotherapy (AIT) approaches necessitate the use of more effective and safe therapeutics, which can be accomplished by employing novel adjuvants for improved innate immune cell activation, as well as hypoallergenic allergen forms. In this study, we investigate the immunomodulatory effects of a chimera rBet v 1a-BanLecwt (rBv1a-BLwt; Cwt) composed of the major birch pollen allergen Bet v 1a and banana lectin (BanLecwt; BLwt) and two novel chimeras, rBv1l-BLH84T (rBet v 1l-BanLecH84T; C1) and rBLH84T-Bv1l (rBanLecH84T-Bet v 1l; C2), both composed of BLH84T and hypoallergenic birch pollen allergen Bv1l in the co-culture model Caco-2/THP-1, and PBMCs from donors with birch pollen allergy. The chimeric molecules rBv1l-BLH84T (C1) and rBLH84T-Bv1l (C2) were created in silico and then produced in E. coli using recombinant DNA technology. Real-time PCR analysis of gene expression following compound treatment in the co-culture model revealed that all three chimeras have the potential to induce the anti-inflammatory cytokine IL-10 gene expression in Caco-2 cells and IFN-γ gene expression in THP-1 cells. Sandwich ELISA revealed that Cwt increased IL-10 secretion and IFN-/IL-4 levels in PBMCs from birch pollen allergic donors, whereas C1 and C2 were less effective. The findings suggest that Cwt should be analyzed further due to its potential benefit in AIT.
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Affiliation(s)
| | - Zorana Lopandić
- Institute for Chemistry in Medicine, University of Belgrade, Faculty of Medicine, Belgrade, Serbia.
| | - Dragan Popović
- Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade, Serbia.
| | - Gordan Blagojević
- Institute of Virology, Vaccines and Sera "Torlak", Belgrade, Serbia.
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LOW PREVALENCE OF COVID-19 IN LAOS AND CAMBODIA: DOES DIET PLAY A ROLE? ACTA MEDICA LEOPOLIENSIA 2022. [DOI: 10.25040/aml2022.1-2.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The study aims to review the involvement of different dietary habits in Laotian, Cambodian, and Vietnamese populations in reducing COVID19 impact.
Materials and Methods. The methods of collection, systematization, analysis and generalization of information data have been used. The analysis of literature in scientific databases and analytical platforms by the listed keywords has been performed; all relevant references in the found sources have also been reviewed.
Results and Discussion. Coronavirus disease (COVID-19) outbreak is an ongoing pandemic caused by a highly pathogenic human coronavirus known as SARS-CoV2. Current epidemiology reported that more than 500 million cases of COVID-19 occurred in more than 180 countries worldwide. When the upper respiratory tract gets infected by low pathogenetic HCoVs, it typically triggers a mild respiratory disease. In contrast, when the lower airways get infected by highly pathogenic HCoVs, such as SARS-CoV2, acute respiratory distress syndrome (ARDS) may occur and even fatal pneumonia. Such a situation causes the need for an urgent search of effective treatment measures. A very low incidence of SARS-CoV-2 in Laos and Cambodia, as well as low mortality rate due to COVID-19 in Vietnam and Laos, are extremely interesting, especially because of their early exposure to the virus, continuing ties to China, relative poverty, and high population density. The use of several spices and aromatic herbs as natural treatments for several illnesses, including viral infections, has been reported since a long time ago. The research reviewed three integral elements of Laotian, Cambodian, and Vietnamese diets, such as special culinary spices and herbs, coconut oil, and palm oil-rich for saturated fatty acids as well as fermented shrimp paste. Environmental and population genetic causes may be forwarded but moreover local dietary habits may have even a role in this evidence. Therefore, all these items highlight the possibility of a significant contribution of local cuisine and diet into the impact on appropriate anti-inflammatory and immune-resistant mechanisms of the human population.
Conclusions. The review on Vietnam, Cambodia, and Laos inhabitants' diet helped to suggest the dietary factors having the contributing potential of reducing the severity of SARS-CoV-2 symptoms.
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Lloyd MG, Liu D, Legendre M, Markovitz DM, Moffat JF. H84T BanLec has broad spectrum antiviral activity against human herpesviruses in cells, skin, and mice. Sci Rep 2022; 12:1641. [PMID: 35102178 PMCID: PMC8803833 DOI: 10.1038/s41598-022-05580-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 01/14/2022] [Indexed: 12/30/2022] Open
Abstract
H84T BanLec is a molecularly engineered lectin cloned from bananas with broad-spectrum antiviral activity against several RNA viruses. H84T BanLec dimers bind glycoproteins containing high-mannose N-glycans on the virion envelope, blocking attachment, entry, uncoating, and spread. It was unknown whether H84T BanLec is effective against human herpesviruses varicella-zoster virus (VZV), human cytomegalovirus (HCMV), and herpes simplex virus 1 (HSV-1), which express high-mannose N-linked glycoproteins on their envelopes. We evaluated H84T BanLec against VZV-ORF57-Luc, TB40/E HCMV-fLuc-eGFP, and HSV-1 R8411 in cells, skin organ culture, and mice. The H84T BanLec EC50 was 0.025 µM for VZV (SI50 = 4000) in human foreskin fibroblasts (HFFs), 0.23 µM for HCMV (SI50 = 441) in HFFs, and 0.33 µM for HSV-1 (SI50 = 308) in Vero cells. Human skin was obtained from reduction mammoplasties and prepared for culture. Skin was infected and cultured up to 14 days. H84T BanLec prevented VZV, HCMV and HSV-1 spread in skin at 10 µM in the culture medium, and also exhibited dose-dependent antiviral effects. Additionally, H84T BanLec arrested virus spread when treatment was delayed. Histopathology of HCMV-infected skin showed no overt toxicity when H84T BanLec was present in the media. In athymic nude mice with human skin xenografts (NuSkin mice), H84T BanLec reduced VZV spread when administered subcutaneously prior to intraxenograft virus inoculation. This is the first demonstration of H84T BanLec effectiveness against DNA viruses. H84T BanLec may have additional unexplored activity against other, clinically relevant, glycosylated viruses.
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Affiliation(s)
- M G Lloyd
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, NY, USA
| | - D Liu
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, NY, USA
| | - M Legendre
- Division of Infectious Diseases, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - D M Markovitz
- Division of Infectious Diseases, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
- Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, MI, USA
- Cancer Biology Program, University of Michigan, Ann Arbor, MI, USA
- Program in Immunology, University of Michigan, Ann Arbor, MI, USA
| | - J F Moffat
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, NY, USA.
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Protić-Rosić I, Nešić A, Lukić I, Miljković R, Popović DM, Atanasković-Marković M, Stojanović M, Gavrović-Jankulović M. Recombinant Bet v 1-BanLec chimera modulates functional characteristics of peritoneal murine macrophages by promoting IL-10 secretion. Mol Immunol 2021; 138:58-67. [PMID: 34364073 DOI: 10.1016/j.molimm.2021.06.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 05/27/2021] [Accepted: 06/22/2021] [Indexed: 11/28/2022]
Abstract
Allergen-specific immunotherapy (AIT) is a desensitizing treatment for allergic diseases that corrects the underlined pathological immune response to innocuous protein antigens, called allergens. Recombinant allergens employed in the AIT allowed the production of well-defined formulations that possessed consistent quality but were often less efficient than natural allergen extracts. Combining recombinant allergens with an adjuvant or immunomodulatory agent could improve AIT efficacy. This study aimed to perform structural and functional characterization of newly designed recombinant chimera composed of the Bet v 1, the major birch pollen allergen, and Banana Lectin (BanLec), TLR2, and CD14 binding protein, for the application in AIT. rBet v 1-BanLec chimera was designed in silico and expressed as a soluble fraction in Escherichia coli. Purified rBet v 1-BanLec (33.4 kDa) retained BanLec-associated biological activity of carbohydrate-binding and preserved IgE reactive epitopes of Bet v 1. The chimera revealed secondary structures with predominant β sheets. The immunomodulatory capacity of rBet v 1-BanLec tested on macrophages showed changes in myeloperoxidase activity, reduced NO production, and significant alterations in the production of cytokines when compared to both rBanLec and rBet v 1. Comparing to rBet v 1, rBet v 1-BanLec was demonstrated to be more efficient promoter of IL-10 production as well as weaker inducer of NO production and secretion of pro-inflammatory cytokines TNFα, and IL-6. The ability of rBet v 1-BanLec to promote IL-10 in together with the preserved 3D structure of Bet v 1 part implies that the construct might exert a beneficial effect in the allergen-specific immunotherapy.
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Affiliation(s)
- Isidora Protić-Rosić
- Department of Biochemistry, Faculty of Chemistry University of Belgrade, Belgrade, Serbia
| | - Andrijana Nešić
- Department of Biochemistry, Faculty of Chemistry University of Belgrade, Belgrade, Serbia
| | - Ivana Lukić
- Department of Research and Development, Institute of Virology, Vaccines and Sera, Torlak, Belgrade, Serbia
| | - Radmila Miljković
- Department of Research and Development, Institute of Virology, Vaccines and Sera, Torlak, Belgrade, Serbia
| | - Dragan M Popović
- University of Belgrade - Institute of Chemistry, Technology and Metallurgy - National Institute of the Republic of Serbia, Belgrade, Serbia
| | - Marina Atanasković-Marković
- Department of Allergology and Pulmonology, University Children's Hospital, Medical Faculty University of Belgrade, Belgrade, Serbia
| | - Marijana Stojanović
- Department of Research and Development, Institute of Virology, Vaccines and Sera, Torlak, Belgrade, Serbia
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El Barnossi A, Moussaid F, Iraqi Housseini A. Tangerine, banana and pomegranate peels valorisation for sustainable environment: A review. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2021; 29:e00574. [PMID: 33376681 PMCID: PMC7758358 DOI: 10.1016/j.btre.2020.e00574] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 10/01/2020] [Accepted: 11/30/2020] [Indexed: 12/16/2022]
Abstract
Over the last decade the world has been generating a high quantity of tangerine peel waste (TPW), pomegranate peel waste (PPW) and banana peel waste (BPW). These peels have several economic benefits but there is mismanagement or inappropriate valorisation that could present risks to environment and public health. In the current review, we discussed the use of TPW, PPW and BPW directly for animal feed, soil fertilization, specific compost production and bio-adsorbent. We also discussed the valorisation of these peels for manufacturing the value-added products including enzymes, essential oil and other products that can be used in human food, in medical and cosmetic industry. Additionally, recent studies concerning the valorisation of these peels by biorefinery for bioethanol, biogas and biohydrogen production have been discussed. In the same context some other recent studies about valorisation of microorganisms isolated from these peels for medical, agronomic and industrial interests have been also discussed.
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Affiliation(s)
- Azeddin El Barnossi
- Laboratory of Biotechnology, Environment, Agri-Food and Health, Faculty of Sciences Dhar El Mahraz, Sidi Mohammed Ben Abdellah University, Fez, Morocco
| | - Fatimazhrae Moussaid
- Laboratory of Biotechnology, Environment, Agri-Food and Health, Faculty of Sciences Dhar El Mahraz, Sidi Mohammed Ben Abdellah University, Fez, Morocco
| | - Abdelilah Iraqi Housseini
- Laboratory of Biotechnology, Environment, Agri-Food and Health, Faculty of Sciences Dhar El Mahraz, Sidi Mohammed Ben Abdellah University, Fez, Morocco
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Keivani Rad N, Mohri M, Seifi HA, Haghparast A. Supplementation of overripe pulp extract and green peel extract or powder of banana fruit peel (musa. cavendish) to diets of neonatal dairy calves: Effects on haematological, immunological and performance characteristics. Vet Med Sci 2021; 7:876-887. [PMID: 33502117 PMCID: PMC8136936 DOI: 10.1002/vms3.429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 11/28/2020] [Accepted: 01/04/2021] [Indexed: 12/27/2022] Open
Abstract
The present study investigated the effects of overripe pulp and green peel extract and powder of banana fruit (Musa. cavendish) on haematological, biochemical, immunological, health, and performance of Holstein dairy calves. In all, 40 newborn calves were randomly divided into four groups of 10 animals. In the control group, animals received no banana meal. In group 1, calves were supplemented with 2 g (dry matter)/kg body weight/day of overripe banana pulp extract. The calves in group 2 were supplemented with 1 g (dry matter) of overripe banana pulp extract/kg body weight/day and 1 g (dry matter) of green banana peel extract/kg body weight/day. The animals in group 3 were supplemented with 2 g/kg body weight/day of green banana peel powder. The feeding period of calves on the tested supplements was 5 days. Blood samples and other evaluations were taken on day 0 (at birth, before supplementation) and on days 7, 15 and 30. Just a trend towards better average daily weight gain was seen in groups 2 and 3 than others (p = 0.073). Significant group and sampling time interactions were seen for the quantities of RBC (group 1 was lower than other groups at day 30), MCV (group 3 was lower than other groups at day 30) and MCH (group 1 was higher than other groups at day 30) (p < 0.05). A trend towards significance in values of IgG (group 1 was lower than other groups at days 15 and 30) and bilirubin (higher values at day 7 in groups 1 and 2 than control, higher amounts at days 15 and 30 in groups 3 and 2 than control, respectively) was also observed. In conclusion, banana supplementation in neonatal calves had beneficial effects on the values of RBC, MCV, MCH, bilirubin, IgG and average daily weight gain in dairy calves.
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Affiliation(s)
- Nafiseh Keivani Rad
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mehrdad Mohri
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran.,Center of Excellence on Ruminant Abortion and Neonatal Mortality, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Hesam A Seifi
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran.,Center of Excellence on Ruminant Abortion and Neonatal Mortality, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Alireza Haghparast
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
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Horie K, Hossain MS, Morita S, Kim Y, Yamatsu A, Watanabe Y, Ohgitani E, Mazda O, Kim M. The potency of a novel fermented unripe banana powder as a functional immunostimulatory food ingredient. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.103980] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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de Camargo LJ, Picoli T, Fischer G, de Freitas ACO, de Almeida RB, da Silva Pinto L. Antiviral activity of native banana lectin against bovine viral diarrhea virus and bovine alphaherpesvirus type 1. Int J Biol Macromol 2020; 157:569-576. [PMID: 32335107 DOI: 10.1016/j.ijbiomac.2020.04.125] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 04/17/2020] [Accepted: 04/18/2020] [Indexed: 02/06/2023]
Abstract
Bovine viral diarrhea virus (BVDV) and bovine alphaherpesvirus type 1 (BoHV-1) are responsible for major economic losses of livestock worldwide, making their eradication an important objective of veterinary research. Vaccines against these infectious agents are commercially available but have some limitations due to the specific features of these viral agents. The development of new antiviral drugs is therefore essential. Native banana lectin (BanLec) is a lectin isolated from banana fruit (Musa acuminata) and has a high affinity for mannose glycans found in several viral envelopes. The inhibitory properties of this lectin against several viruses has already been demonstrated. The aim of this work was therefore to test the antiviral and virucidal activities of BanLec against BVDV-1 and BoHV-1. Its antiviral activity was assessed by measuring the viral titer and viability of susceptible Madin-Darby Bovine Kidney cells (MDBK) treated with BanLec before and after viral infection. The virucidal properties of BanLec were determined by preincubation of the lectin with the viruses, followed by measurement of the viral load in exposed cells. Treatment with 25 μg/mL BanLec resulted in high levels of inhibition against BVDV-1 (99.98%) and BoHV-1 (99.68%) without affecting cell viability, demonstrating promising potential as an antiviral agent.
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Affiliation(s)
- Laura Junqueira de Camargo
- Programa de Pós-Graduação em Biotecnologia, Laboratório Bioinformática e Proteômica (BioPro_Lab), Universidade Federal de Pelotas, Brazil.
| | - Tony Picoli
- Programa de Pós-Graduação em Veterinária, Laboratório de Virologia e Imunologia, Universidade Federal de Pelotas, Brazil
| | - Geferson Fischer
- Programa de Pós-Graduação em Veterinária, Laboratório de Virologia e Imunologia, Universidade Federal de Pelotas, Brazil
| | - Ana Claudia Oliveira de Freitas
- Programa de Pós-Graduação em Biotecnologia, Laboratório Bioinformática e Proteômica (BioPro_Lab), Universidade Federal de Pelotas, Brazil
| | - Rodrigo Bozembecker de Almeida
- Programa de Pós-Graduação em Veterinária, Laboratório de Virologia e Imunologia, Universidade Federal de Pelotas, Brazil
| | - Luciano da Silva Pinto
- Programa de Pós-Graduação em Biotecnologia, Laboratório Bioinformática e Proteômica (BioPro_Lab), Universidade Federal de Pelotas, Brazil.
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de Siqueira Patriota LL, Procópio TF, de Santana Brito J, Sebag V, de Oliveira APS, de Araújo Soares AK, Moreira LR, de Albuquerque Lima T, Soares T, da Silva TD, Paiva PMG, de Lorena VMB, de Melo CML, de Albuquerque LP, Napoleão TH. Microgramma vacciniifolia (Polypodiaceae) fronds contain a multifunctional lectin with immunomodulatory properties on human cells. Int J Biol Macromol 2017; 103:36-46. [DOI: 10.1016/j.ijbiomac.2017.05.037] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 05/05/2017] [Accepted: 05/08/2017] [Indexed: 12/17/2022]
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Shiga TM, Carpita NC, Lajolo FM, Cordenunsi-Lysenko BR. Two banana cultivars differ in composition of potentially immunomodulatory mannan and arabinogalactan. Carbohydr Polym 2017; 164:31-41. [DOI: 10.1016/j.carbpol.2017.01.079] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 01/10/2017] [Accepted: 01/21/2017] [Indexed: 12/17/2022]
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Coelho LCBB, Silva PMDS, Lima VLDM, Pontual EV, Paiva PMG, Napoleão TH, Correia MTDS. Lectins, Interconnecting Proteins with Biotechnological/Pharmacological and Therapeutic Applications. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2017; 2017:1594074. [PMID: 28367220 PMCID: PMC5359455 DOI: 10.1155/2017/1594074] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 01/21/2017] [Accepted: 02/06/2017] [Indexed: 11/18/2022]
Abstract
Lectins are proteins extensively used in biomedical applications with property to recognize carbohydrates through carbohydrate-binding sites, which identify glycans attached to cell surfaces, glycoconjugates, or free sugars, detecting abnormal cells and biomarkers related to diseases. These lectin abilities promoted interesting results in experimental treatments of immunological diseases, wounds, and cancer. Lectins obtained from virus, microorganisms, algae, animals, and plants were reported as modulators and tool markers in vivo and in vitro; these molecules also play a role in the induction of mitosis and immune responses, contributing for resolution of infections and inflammations. Lectins revealed healing effect through induction of reepithelialization and cicatrization of wounds. Some lectins have been efficient agents against virus, fungi, bacteria, and helminths at low concentrations. Lectin-mediated bioadhesion has been an interesting characteristic for development of drug delivery systems. Lectin histochemistry and lectin-based biosensors are useful to detect transformed tissues and biomarkers related to disease occurrence; antitumor lectins reported are promising for cancer therapy. Here, we address lectins from distinct sources with some biological effect and biotechnological potential in the diagnosis and therapeutic of diseases, highlighting many advances in this growing field.
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Affiliation(s)
| | - Priscila Marcelino dos Santos Silva
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego 1235, Cidade Universitária, 50.670-901 Recife, PE, Brazil
| | - Vera Lúcia de Menezes Lima
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego 1235, Cidade Universitária, 50.670-901 Recife, PE, Brazil
| | - Emmanuel Viana Pontual
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Rua Dom Manuel de Medeiros, s/n, Dois Irmãos, 52171-900 Recife, PE, Brazil
| | - Patrícia Maria Guedes Paiva
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego 1235, Cidade Universitária, 50.670-901 Recife, PE, Brazil
| | - Thiago Henrique Napoleão
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego 1235, Cidade Universitária, 50.670-901 Recife, PE, Brazil
| | - Maria Tereza dos Santos Correia
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego 1235, Cidade Universitária, 50.670-901 Recife, PE, Brazil
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Marinkovic E, Djokic R, Lukic I, Filipovic A, Inic-Kanada A, Kosanovic D, Gavrovic-Jankulovic M, Stojanovic M. Modulation of functional characteristics of resident and thioglycollate-elicited peritoneal murine macrophages by a recombinant banana lectin. PLoS One 2017; 12:e0172469. [PMID: 28235050 PMCID: PMC5325268 DOI: 10.1371/journal.pone.0172469] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 02/06/2017] [Indexed: 01/25/2023] Open
Abstract
We demonstrated that a recombinant banana lectin (rBanLec), which structural characteristics and physiological impacts highly resemble those reported for its natural counterparts, binds murine peritoneal macrophages and specifically modulates their functional characteristics. By using rBanLec in concentrations ranging from 1 μg to 10 μg to stimulate resident (RMs) and thioglycollate-elicited (TGMs) peritoneal macrophages from BALB/c and C57BL/6 mice, we have shown that effects of rBanLec stimulation depend on its concentration but also on the functional status of macrophages and their genetic background. rBanLec, in a positive dose-dependent manner, promotes the proliferation of TGMs from both BALB/c and C57BL/6 mice, while its mitogenic influence on RMs is significantly lower (BALB/c mice) or not detectable (C57BL/6 mice). In all peritoneal macrophages, irrespective of their type and genetic background, rBanLec, in a positive dose dependent manner, enhances the secretion of IL-10. rBanLec stimulation of RMs from both BALB/c and C57BL/6 resulted in a positive dose-dependent promotion of proinflammatory phenotype (enhancement of NO production and IL-12 and TNFα secretion, reduction of arginase activity). Positive dose-dependent skewing toward proinflammatory phenotype was also observed in TGMs from C57BL/6 mice. However, the enhancement of rBanLec stimulation promotes skewing of TGMs from BALB/c mice towards anti-inflammatory profile (reduction of NO production and IL-12 secretion, enhancement of arginase activity and TGFβ and IL-4 secretion). Moreover, we established that rBanLec binds oligosaccharide structures of TLR2 and CD14 and that blocking of signaling via these receptors significantly impairs the production of TNFα and NO in BALB/c macrophages. Since the outcome of rBanLec stimulation depends on rBanLec concentration as well as on the functional characteristics of its target cells and their genetic background, further studies are needed to investigate its effects under physiological and specific pathological conditions.
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Affiliation(s)
- Emilija Marinkovic
- Department of Research and Development; Institute of Virology, Vaccines and Sera–TORLAK; Belgrade, Serbia
| | - Radmila Djokic
- Department of Research and Development; Institute of Virology, Vaccines and Sera–TORLAK; Belgrade, Serbia
| | - Ivana Lukic
- Department of Research and Development; Institute of Virology, Vaccines and Sera–TORLAK; Belgrade, Serbia
| | - Ana Filipovic
- Department of Research and Development; Institute of Virology, Vaccines and Sera–TORLAK; Belgrade, Serbia
| | - Aleksandra Inic-Kanada
- OCUVAC–Center of Ocular Inflammation and Infection, Laura Bassi Centres of Expertise; Center for Pathophysiology, Infectiology and Immunology; Medical University of Vienna; Vienna, Austria
| | - Dejana Kosanovic
- Department of Research and Development; Institute of Virology, Vaccines and Sera–TORLAK; Belgrade, Serbia
| | | | - Marijana Stojanovic
- Department of Research and Development; Institute of Virology, Vaccines and Sera–TORLAK; Belgrade, Serbia
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