1
|
Silva RCP, Silva RPCD, Silva MDC, Nascimento WRCD, Costa VMA, Azevedo Albuquerque MCPD, Souza VMOD. Extract of Ascaris suum induces TGF-β and early production of IgG1 in experimental autoimmune hepatitis. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA = BRAZILIAN JOURNAL OF VETERINARY PARASITOLOGY : ORGAO OFICIAL DO COLEGIO BRASILEIRO DE PARASITOLOGIA VETERINARIA 2020; 29:e023419. [PMID: 32520090 DOI: 10.1590/s1984-29612020031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
In experimental autoimmune hepatitis (EAH) of Th1 profile, an extract of adult Ascaris suum worms (ASC) was previously found to deviate the immune response to a Th2/IL-10 pattern. Here, the effects of treatment with ASC on production of TGF-β and the anti-Ascaris isotypes IgG1 and IgG2a in EAH were evaluated. EAH was induced in BALB/c mice, intravenously with concanavalin A. Two hours later, these animals received ASC (EAH+ASC group) or PBS vehicle (EAH group). IgG1 and IgG2a were evaluated 8 h, 24 h and 7 d after induction. TGF-β was measured in a splenocyte culture at this last time. The isotype levels in the EAH group were low throughout the kinetics. In the EAH+ASC group, there was significant production of IgG1 at 24 h and 7 d, but of IgG2a only at 7 d. There was statistically greater production of TGF-β in the EAH+ASC group. The higher levels of IgG1 and TGF-β in this group suggest that an additional Th1 response control route exists in EAH, which needs to be investigated.
Collapse
Affiliation(s)
- Roeckson Carlos Peixoto Silva
- Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brasil
- Departamento de Medicina Tropical, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brasil
| | - Raul Penaforte Correia da Silva
- Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brasil
- Departamento de Medicina Tropical, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brasil
| | - Maria da Conceição Silva
- Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brasil
- Departamento de Medicina Tropical, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brasil
| | | | - Vlaudia Maria Assis Costa
- Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brasil
- Departamento de Medicina Tropical, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brasil
| | - Mônica Camelo Pessôa de Azevedo Albuquerque
- Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brasil
- Departamento de Medicina Tropical, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brasil
| | - Valdênia Maria Oliveira de Souza
- Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brasil
- Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco - UFPE, Recife, PE, Brasil
| |
Collapse
|
2
|
Ayaz Ahmed KB, Raman T, Veerappan A. Jacalin capped platinum nanoparticles confer persistent immunity against multiple Aeromonas infection in zebrafish. Sci Rep 2018; 8:2200. [PMID: 29396408 PMCID: PMC5797147 DOI: 10.1038/s41598-018-20627-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 01/16/2018] [Indexed: 12/17/2022] Open
Abstract
Bacterial resistance is a major clinical problem, which is compounded by both a lack of new antibiotics and emergence of multi- and extremely-drug resistant microbes. In this context, non-toxic nanoparticles could play an important role in conferring protection against bacterial infections and in this study we have made an attempt to show the usefulness of jacalin capped platinum nanoparticles in protecting zebrafish against multiple infections with Aeromonas hydrophila. Our results also indicate that use of nanoparticles promotes adaptive immune response against the pathogen, so much so that zebrafish is able to survive repetitive infection even after twenty one days of being treated with jacalin-capped platinum nanoparticles. This is significant given that platinum salt is not antibacterial and jacalin is non-immunogenic. Our study for the first time reveals a novel mechanism of action of nanoparticles, which could form an alternate antibacterial strategy with minimal bacterial resistance.
Collapse
Affiliation(s)
- Khan Behlol Ayaz Ahmed
- School of Chemical and Biotechnology, SASTRA University, Thirumalaisamudram, Thanjavur, 613401, Tamil Nadu, India
| | - Thiagarajan Raman
- School of Chemical and Biotechnology, SASTRA University, Thirumalaisamudram, Thanjavur, 613401, Tamil Nadu, India.
- Department of Advanced Zoology and Biotechnology, Ramakrishna Mission Vivekananda College, Mylapore, Chennai, 600004, India.
| | - Anbazhagan Veerappan
- School of Chemical and Biotechnology, SASTRA University, Thirumalaisamudram, Thanjavur, 613401, Tamil Nadu, India.
| |
Collapse
|
3
|
Ulusoy C, Kim E, Tüzün E, Huda R, Yılmaz V, Poulas K, Trakas N, Skriapa L, Niarchos A, Strait RT, Finkelman FD, Turan S, Zisimopoulou P, Tzartos S, Saruhan-Direskeneli G, Christadoss P. Preferential production of IgG1, IL-4 and IL-10 in MuSK-immunized mice. Clin Immunol 2014; 151:155-63. [DOI: 10.1016/j.clim.2014.02.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 02/06/2014] [Accepted: 02/20/2014] [Indexed: 01/09/2023]
|
4
|
Interactive effects of protein nutrition, genetic growth potential and Heligmosomoides bakeri infection pressure on resilience and resistance in mice. Parasitology 2011; 138:1305-15. [PMID: 21767435 DOI: 10.1017/s0031182011000990] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The ability of animals to cope with an increasing parasite load, in terms of resilience and resistance, may be affected by both nutrient supply and demand. Here, we hypothesized that host nutrition and growth potential interact and influence the ability of mice to cope with different parasite doses. Mice selected for high (ROH) or low (ROL) body weight were fed a low (40 g/kg; LP) or high (230 g/kg; HP) protein diet and infected with 0, 50, 100, 150, 200 or 250 L3 infective Heligmosomoides bakeri larvae. ROH-LP mice grew less at doses of 150 L3 and above, whilst growth of ROH-HP and of ROL mice was not affected by infection pressure. Total worm burdens reached a plateau at doses of 150L3, whilst ROH mice excreted fewer worm eggs than ROL mice. Serum antibodies increased with infection dose and ROH mice were found to have higher parasite-specific IgG1 titres than ROL mice. In contrast, ROL had higher total IgE titres than ROH mice, only on HP diets. The interaction between host nutrition and growth potential appears to differentially affect resilience and resistance in mice. However, the results support the view that parasitism penalises performance in animals selected for higher growth.
Collapse
|
5
|
Aldemir H, Bars R, Herouet-Guicheney C. Murine models for evaluating the allergenicity of novel proteins and foods. Regul Toxicol Pharmacol 2009; 54:S52-7. [DOI: 10.1016/j.yrtph.2008.11.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2008] [Revised: 11/14/2008] [Accepted: 11/18/2008] [Indexed: 01/15/2023]
|