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Santana BB, Queiroz MAF, Cerveira RA, Rodrigues CM, da Silva Graça Amoras E, da Costa CA, de Sousa MS, Ishak R, Goulart LR, Vallinoto ACR. Low Annexin A1 level in HTLV-1 infected patients is a potential biomarker for the clinical progression and diagnosis of HAM/TSP. BMC Infect Dis 2021; 21:219. [PMID: 33632146 PMCID: PMC7908672 DOI: 10.1186/s12879-021-05917-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 02/11/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Human T-lymphotropic virus 1 (HTLV-1) is etiologically associated with the chronic inflammatory neurodegenerative disease HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) Annexin A1 (AnxA1) is an anti-inflammatory protein with proposed neuroprotective and anti-neuroinflammatory functions. We hypothesized that ANXA1 gene expression may be dysregulated in HTLV-1-infected HAM/TSP patients. METHODS This study involved 37 individuals infected with HTLV-1, including 21 asymptomatic (AS) carriers and 16 with HAM/TSP, and a control group of 30 individuals negative for HTLV-1 and HTLV-2. For AS HTLV-1-positive and HAM/TSP patients, ANXA1 and formyl peptide receptor (FPR1, FPR2 and FPR3) expression and HTLV-1 proviral load (PVL) in peripheral blood cells were evaluated by real-time quantitative PCR (qPCR), and plasma AnxA1 levels were determined by enzyme-linked immunosorbent assay (ELISA). RESULTS ANXA1 gene expression was increased in the AS group compared with the HAM/TSP and control groups, but the differences were not statistically significant. FPR1 gene expression was higher in patients with HTLV-1 than in controls (AS, p = 0.0032; HAM/TSP, p < 0.0001). Plasma AnxA1 levels were higher in the AS group than in the HAM/TSP group (p = 0.0045), and PVL was higher in patients with HAM/TSP than in AS individuals (p = 0.0162). The use of a combined ROC curve using Annexin 1 levels and proviral load significantly increased the sensitivity and specificity to predict progression to HAM/TSP (AUC = 0.851 and AUC = 0.937, respectively, to AUC = 1000). CONCLUSIONS Our results suggest that AnxA1 may be dysregulated in HAM/TSP patients. Serological detection of AnxA1 in association with proviral load may provide a prognostic biomarker for HTLV-1-associated neurodegenerative disease.
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Affiliation(s)
- Bárbara Brasil Santana
- Laboratório de Virologia, Instituto de Ciências Biológica, Universidade Federal do Pará, Belem, 66.075-110, Brazil.,Graduate Program in Biology of Infectious and Parasitic Agents, Biological Science Institute, Federal University of Pará, Belem, 66.075-110, Brazil
| | - Maria Alice Freitas Queiroz
- Laboratório de Virologia, Instituto de Ciências Biológica, Universidade Federal do Pará, Belem, 66.075-110, Brazil
| | - Rodrigo Arcoverde Cerveira
- Laboratório de Virologia, Instituto de Ciências Biológica, Universidade Federal do Pará, Belem, 66.075-110, Brazil
| | - Claudia Mendonça Rodrigues
- Laboratory of Nanobiotechnology, Biotechnology Institute, Federal University of Uberlândia, Uberlândia, 38.400-902, Brazil
| | | | - Carlos Araújo da Costa
- Laboratory of Cellular and Molecular Biology, Tropical Medicine Center, Federal University of Pará, Belem, 66.055-240, Brazil
| | - Maisa Silva de Sousa
- Laboratory of Cellular and Molecular Biology, Tropical Medicine Center, Federal University of Pará, Belem, 66.055-240, Brazil
| | - Ricardo Ishak
- Laboratório de Virologia, Instituto de Ciências Biológica, Universidade Federal do Pará, Belem, 66.075-110, Brazil
| | - Luiz Ricardo Goulart
- Laboratory of Nanobiotechnology, Biotechnology Institute, Federal University of Uberlândia, Uberlândia, 38.400-902, Brazil
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Klautau AV, da Silva Pinto D, Santana BB, Freitas Queiroz MA, Rangel da Silva ANM, Vieira Cayres-Vallinoto IM, Ishak R, Rosário Vallinoto AC. Pilates exercise improves the clinical and immunological profiles of patients with human T-cell lymphotropic virus 1 associated myelopathy: A pilot study. J Bodyw Mov Ther 2020; 24:1-8. [PMID: 32825975 DOI: 10.1016/j.jbmt.2020.02.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 11/13/2019] [Accepted: 02/17/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) is an infectious chronic-inflammatory disease, which can lead to lower limb motions. METHODS The study evaluated the effects of serial Pilates exercises on the clinical and immunological profiles of patients with HAM/TSP. Eight patients with ages ranging from 39 to 70 years old (2 males and 6 females), 2 wheelchair users and 6 with compromised gait, were evaluated. The patients were submitted to 20 Pilates sessions for 10 weeks. Data were collected at 3 time points (beginning of the study, after Pilates sessions and after 10 weeks without Pilates) and consisted of evaluations of the pain level, spasticity, motor strength, balance, mobility, functional capacity, quality of life and quantification of IFN-γ, IL-10 and IL-9 cytokines levels. RESULTS After the Pilates sessions, significant improvements in pain level, static and dynamic balance, trunk control, mobility and quality of life were observed, with simultaneous and significant reductions in the serum levels of the cytokines IFN-γ and IL-10. However, after 10 weeks without Pilates, there were significant changes in terms of increasing pain and regression of mobility, with no changes in strength, spasticity, functional capacity in any of the periods of the study. CONCLUSIONS The results suggest that Pilates may be a promising auxiliary physical therapy for patients with HAM/TSP.
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Affiliation(s)
- Altair Vallinoto Klautau
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Guamá, 66.075-110, Pará state, Brazil
| | - Denise da Silva Pinto
- Institute of Health Sciences, Federal University of Pará, Umarizal, 66.050-060, Pará state, Brazil; Division of Tropical Medicine, Federal University of Pará, Umarizal, 66.050-060, Belém, Pará state, Brazil
| | - Bárbara Brasil Santana
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Guamá, 66.075-110, Pará state, Brazil
| | - Maria Alice Freitas Queiroz
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Guamá, 66.075-110, Pará state, Brazil
| | | | | | - Ricardo Ishak
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Guamá, 66.075-110, Pará state, Brazil
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Amoras EDSG, Gomes STM, Freitas FB, Santana BB, Ishak G, Ferreira de Araújo MT, Demachki S, Conde SRSDS, Ishak MDOG, Ishak R, Vallinoto ACR. Intrahepatic mRNA Expression of FAS, FASL, and FOXP3 Genes Is Associated with the Pathophysiology of Chronic HCV Infection. PLoS One 2016; 11:e0156604. [PMID: 27243827 PMCID: PMC4887037 DOI: 10.1371/journal.pone.0156604] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 05/17/2016] [Indexed: 12/20/2022] Open
Abstract
This study aimed to evaluate the relative mRNA expression of Fas receptor (FAS), Fas ligand (FASL), and forkhead box protein 3 (FOXP3) in liver biopsy specimens obtained from patients with viral and non-viral chronic hepatitis and correlate their expression with the fibrosis stage. A total of 51 liver biopsy specimens obtained from HBV (n = 6), HCV (n = 28), and non-viral hepatic disease (NVHD) (n = 9) patients and from individuals with normal liver histology (n = 8) (control—CT) were analyzed. Quantifications of the target genes were assessed using qPCR, and liver biopsies according to the METAVIR classification. The mRNA expression levels of FAS and FASL were lower in the CT group compared to the groups of patients. The increase in the mRNA expression of FAS and FASL was correlated with higher levels of inflammation and disease progression, followed by a decline in tissues with cirrhosis, and it was also associated with increased levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST). Higher mRNA expression of FOXP3 was observed in the HCV and NVHD groups, with the peak observed among patients with cirrhosis. The increased FOXP3 mRNA expression was positively correlated with increased FAS and FASL mRNA expression and the AST and ALT levels in all patients. Conclusions: These results suggest that regardless of the cause, the course of chronic liver disease may be modulated by the analyzed genes and correlated with an increase in regulatory T cells during the liver damage followed by hepatocyte destruction by Fas/FasL system and subsequent non specific lymphocytic infiltrate accumulation.
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Affiliation(s)
- Ednelza da Silva Graça Amoras
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará (Universidade Federal do Pará –UFPA), Belém, Pará, Brazil
| | - Samara Tatielle Monteiro Gomes
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará (Universidade Federal do Pará –UFPA), Belém, Pará, Brazil
| | - Felipe Bonfim Freitas
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará (Universidade Federal do Pará –UFPA), Belém, Pará, Brazil
| | - Bárbara Brasil Santana
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará (Universidade Federal do Pará –UFPA), Belém, Pará, Brazil
| | - Geraldo Ishak
- João de Barros Barreto Hospital, Federal University of Pará (Universidade Federal do Pará –UFPA), Belém, Pará, Brazil
| | | | - Sâmia Demachki
- School of Medicine, Institute of Health Sciences, Federal University of Pará (Universidade Federal do Pará –UFPA), Belém, Pará, Brazil
| | - Simone Regina Souza da Silva Conde
- School of Medicine, Institute of Health Sciences, Federal University of Pará (Universidade Federal do Pará –UFPA), Belém, Pará, Brazil
- Hepatology Outpatient Service, Holy House of Mercy Foundation of Pará (Santa Casa de Misericórdia do Pará), Belém, Pará, Brazil
| | | | - Ricardo Ishak
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará (Universidade Federal do Pará –UFPA), Belém, Pará, Brazil
| | - Antonio Carlos Rosário Vallinoto
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará (Universidade Federal do Pará –UFPA), Belém, Pará, Brazil
- * E-mail:
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de Sá KSG, Santana BB, de Souza Ferreira TC, Sousa RCM, Caldas CAM, Azevedo VN, Feitosa RNM, Machado LFA, de Oliveira Guimarães Ishak M, Ishak R, Vallinoto ACR. IL28B gene polymorphisms and Th1/Th2 cytokine levels might be associated with HTLV-associated arthropathy. Cytokine 2016; 77:79-87. [PMID: 26546777 DOI: 10.1016/j.cyto.2015.11.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 10/30/2015] [Accepted: 11/02/2015] [Indexed: 12/18/2022]
Abstract
The present study is the first investigation of the association between single nucleotide polymorphisms (SNPs - rs8099917, rs12979860 and rs8103142) of the IL28B gene and the development of human T-lymphotropic virus (HTLV)-associated arthropathy (HAA). Individuals with HAA exhibited low interleukin (IL) 6 (p<0.05) and high IL-10 (p<0.05) levels compared with asymptomatic patients. TNF-α/CD4(+) T cell count, TNF-α/CD8(+) T cell count and IFN-γ/proviral load positively correlated in asymptomatic patients. The allelic and genotypic frequencies did not differ between patients with HAA and asymptomatic patients. Seven haplotypes were detected in the investigated population, with haplotype CCT (p<0.05) being the most frequent among the HTLV-infected individuals, while haplotype TTG (p<0.05) was detected in the group with HAA only. Compared with asymptomatic patients, individuals with HAA and genotype TT (rs8099917) exhibited larger numbers of CD8(+) T cells (p<0.05) and higher proviral load levels (p<0.05). Those patients with HAA and genotypes CC (rs12979860) and TT (rs8103142) exhibited high TNF-β (p<0.05) and IFN-γ (p<0.05) levels. Those patients with HAA and genotype CT/TT (rs12979860) exhibited high IL-10 levels (p<0.05). These results suggest that haplotypes CCT and TTG might be associated with susceptibility to HTLV infection and progression to HAA, respectively. Genotype TT (rs8099917) might be a risk factor for elevation of the proviral load and CD8(+) T cell count. In addition, genotypes CC (rs12979860) and TT (rs8103142) seem to be associated with increased TNF-β and IFN-γ levels.
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Affiliation(s)
- Keyla Santos Guedes de Sá
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Guamá, 66075-110 Belém, Pará, Brazil
| | - Bárbara Brasil Santana
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Guamá, 66075-110 Belém, Pará, Brazil
| | - Tuane Carolina de Souza Ferreira
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Guamá, 66075-110 Belém, Pará, Brazil
| | - Rita Catarina Medeiros Sousa
- Tropical Medicine Unit (Núcleo de Medicina Tropical), Federal University of Pará (Universidade Federal do Para), Umarizal, 66050-240 Belém, Pará, Brazil
| | - Cezar Augusto Muniz Caldas
- Tropical Medicine Unit (Núcleo de Medicina Tropical), Federal University of Pará (Universidade Federal do Para), Umarizal, 66050-240 Belém, Pará, Brazil
| | - Vânia Nakauth Azevedo
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Guamá, 66075-110 Belém, Pará, Brazil
| | - Rosimar Neris Martins Feitosa
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Guamá, 66075-110 Belém, Pará, Brazil
| | - Luiz Fernando Almeida Machado
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Guamá, 66075-110 Belém, Pará, Brazil
| | - Marluísa de Oliveira Guimarães Ishak
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Guamá, 66075-110 Belém, Pará, Brazil
| | - Ricardo Ishak
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Guamá, 66075-110 Belém, Pará, Brazil
| | - Antonio Carlos Rosário Vallinoto
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Guamá, 66075-110 Belém, Pará, Brazil.
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Vallinoto ACR, Santana BB, Sá KSG, Ferreira TCS, Sousa RCM, Azevedo VN, Feitosa RNM, Machado LFA, Ishak MOG, Ishak R. HTLV-1-Associated Myelopathy/Tropical Spastic Paraparesis Is Not Associated with SNP rs12979860 of the IL-28B Gene. Mediators Inflamm 2015; 2015:804167. [PMID: 26609200 PMCID: PMC4644563 DOI: 10.1155/2015/804167] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 09/13/2015] [Indexed: 12/14/2022] Open
Abstract
The present study investigated the association between the rs12979860 polymorphism in the IL-28B gene and HTLV-1 infection as well as the development of HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). HTLV-1-infected patients (26 HAM/TSP symptomatic and 53 asymptomatic) and 300 seronegative healthy controls were investigated. Plasma levels of the cytokines TNF-α, TNF-β, IL-8, IL-10, IL-6, and IFN-γ from infected patients were measured using an indirect enzyme-linked immunosorbent assay. The HTLV proviral load was measured using a real-time PCR assay, and T-cell subset counts were determined by flow cytometry. Real-time PCR was used to genotype the rs12979860 SNP. The allelic and genotypic distributions displayed no significant differences among the investigated groups. No significant association between the serum cytokine levels and the presence of the rs12979860 SNP in symptomatic and asymptomatic subjects was observed. A positive correlation (p = 0.0015) between TNF-β and IFN-γ was observed in the asymptomatic group, but a positive correlation was only observed (p = 0.0180) between TNF-α and IL-6 in the HAM/TSP group. The proviral load was significantly higher in HAM/TSP patients than in asymptomatic subjects. The present results do not support a previous report indicating an association between the SNP rs12979860 and HAM/TSP outcome.
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Affiliation(s)
- Antonio C. R. Vallinoto
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Guamá, 66075-110 Belém, PA, Brazil
| | - Bárbara Brasil Santana
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Guamá, 66075-110 Belém, PA, Brazil
| | - Keyla S. G. Sá
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Guamá, 66075-110 Belém, PA, Brazil
| | - Tuane C. S. Ferreira
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Guamá, 66075-110 Belém, PA, Brazil
| | - Rita Catarina M. Sousa
- Núcleo de Medicina Tropical, Universidade Federal do Pará, Guamá, 66050-240 Belém, PA, Brazil
| | - Vânia N. Azevedo
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Guamá, 66075-110 Belém, PA, Brazil
| | - Rosimar N. M. Feitosa
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Guamá, 66075-110 Belém, PA, Brazil
| | - Luiz Fernando A. Machado
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Guamá, 66075-110 Belém, PA, Brazil
| | - Marluísa O. G. Ishak
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Guamá, 66075-110 Belém, PA, Brazil
| | - Ricardo Ishak
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Guamá, 66075-110 Belém, PA, Brazil
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Hermes RB, Santana BB, Lima SS, Neris Martins Feitosa R, de Oliveira Guimarães Ishak M, Ishak R, Vallinoto ACR. FAS -670 A/G polymorphism may be associated with the depletion of CD4(+) T lymphocytes in HIV-1 infection. Hum Immunol 2015; 76:742-6. [PMID: 26429326 DOI: 10.1016/j.humimm.2015.09.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 08/12/2015] [Accepted: 09/27/2015] [Indexed: 11/24/2022]
Abstract
In this study, the polymorphisms in the FAS and FASL genes was investigated in a sample of 198 HIV-1-seropositive individuals and 191 seronegative controls to evaluate a possible association between polymorphisms and the infection. The identification of the A and G alleles of the FAS -670 polymorphism was accomplished through polymerase chain reaction assays followed by digestion with the restriction enzyme MvaI. The identification of the A and G alleles of the FAS -124 polymorphism and the T and delT alleles of the FAS -169 polymorphism were performed using the amplification-created restriction site method followed by restriction fragment length polymorphism reactions. The comparative analysis of allelic and genotypic frequencies between the groups did not reveal any significant differences. However, the quantitative analysis of CD4(+) T lymphocytes suggests that the G allele of the FAS -670 A/G polymorphism can be a protective factor against the depletion of these cells in the course of an HIV-1 infection. Polymorphisms in the FAS and FASL genes were not associated with the number of CD8(+) T lymphocytes or the plasma viral load. Our findings suggest that the FAS -670 polymorphism may be associated with apoptosis of CD4(+) T lymphocytes after infection by HIV-1.
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Affiliation(s)
- Renata Bezerra Hermes
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Belém, Pará, Brazil
| | - Bárbara Brasil Santana
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Belém, Pará, Brazil
| | - Sandra Souza Lima
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Belém, Pará, Brazil
| | - Rosimar Neris Martins Feitosa
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Belém, Pará, Brazil
| | - Marluísa de Oliveira Guimarães Ishak
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Belém, Pará, Brazil
| | - Ricardo Ishak
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Belém, Pará, Brazil
| | - Antonio Carlos Rosário Vallinoto
- Laboratory of Virology (Laboratório de Virologia), Institute of Biological Sciences (Instituto de Ciências Biológicas), Federal University of Pará (Universidade Federal do Pará), Belém, Pará, Brazil.
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Amoras EDSG, Gomes STM, Freitas FB, Santana BB, Ishak G, de Araújo MTF, Demachki S, da Silva Conde SRS, de Oliveira Guimarães Ishak M, Ishak R, Vallinoto ACR. NGF and P75NTR gene expression is associated with the hepatic fibrosis stage due to viral and non-viral causes. PLoS One 2015; 10:e0121754. [PMID: 25816145 PMCID: PMC4376854 DOI: 10.1371/journal.pone.0121754] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 02/03/2015] [Indexed: 01/22/2023] Open
Abstract
This study evaluated the relative mRNA expression levels of nerve growth factor (NGF) and the p75 neurothrophin receptor (p75NTR) in different histological stages of human liver disease. Fifty-one liver biopsy specimens obtained from patients with hepatitis B virus (n = 6), hepatitis C virus (n = 28), and non-viral hepatitis – (n = 9) and standard histological liver (n = 8) as controls (CT) were subjected to qPCR and histopathological exams. Our data revealed a significant difference in the NGF expression levels between the three patient groups and the Control group. p75NTR expression levels in the HCV and NVH groups were higher than those observed in the HBV and Control groups. In cases of liver cirrhosis, higher p75NTR mRNA expression was observed, whereas NGF was expressed at higher levels in patients with hepatic fibrosis. NGF expression was lower in the F1 liver fibrosis stage, and p75NTR receptor expression continuously and proportionately increased compared to the increase in the degree of fibrosis and was significantly higher in livers in fibrosis stages 3 and 4. The hepatic levels of NGF and p75NTR were decreased and increased, respectively, relative to the stage of inflammatory activity. A positive correlation between p75NTR and NGF gene expression was observed in livers with mild to moderate fibrosis, though not in cases of severe fibrosis and cirrhosis.
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Affiliation(s)
- Ednelza da Silva Graça Amoras
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará (Universidade Federal do Pará—UFPA), Belém, Pará, Brazil
| | - Samara Tatielle Monteiro Gomes
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará (Universidade Federal do Pará—UFPA), Belém, Pará, Brazil
| | - Felipe Bonfim Freitas
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará (Universidade Federal do Pará—UFPA), Belém, Pará, Brazil
| | - Bárbara Brasil Santana
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará (Universidade Federal do Pará—UFPA), Belém, Pará, Brazil
| | - Geraldo Ishak
- João de Barros Barreto Hospital, Federal University of Pará (Universidade Federal do Pará—UFPA), Belém, Pará, Brazil
| | | | - Sâmia Demachki
- School of Medicine, Institute of Health Sciences, Federal University of Pará (Universidade Federal do Pará—UFPA), Belém, Pará, Brazil
| | - Simone Regina Souza da Silva Conde
- School of Medicine, Institute of Health Sciences, Federal University of Pará (Universidade Federal do Pará—UFPA), Belém, Pará, Brazil
- Hepatology Outpatient Service, Holy House of Mercy Foundation of Pará (Santa Casa de Misericórdia do Pará), Belém, Pará, Brazil
| | | | - Ricardo Ishak
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará (Universidade Federal do Pará—UFPA), Belém, Pará, Brazil
| | - Antonio Carlos Rosário Vallinoto
- Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará (Universidade Federal do Pará—UFPA), Belém, Pará, Brazil
- * E-mail:
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Melo FAF, Bezerra ACF, Santana BB, Ishak MOG, Ishak R, Cayres-Vallinoto IMV, Vallinoto ACR. JC polyomavirus infection in candidates for kidney transplantation living in the Brazilian Amazon region. Mem Inst Oswaldo Cruz 2013; 108:145-9. [PMID: 23579791 PMCID: PMC3970657 DOI: 10.1590/0074-0276108022013003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Accepted: 10/09/2012] [Indexed: 12/18/2022] Open
Abstract
This study evaluated the relative occurrences of BK virus (BKV) and JC virus (JCV) infections in patients with chronic kidney disease (CKD). Urine samples were analysed from CKD patients and from 99 patients without CKD as a control. A total of 100 urine samples were analysed from the experimental (CKD patients) group and 99 from the control group. Following DNA extraction, polymerase chain reaction (PCR) was used to amplify a 173 bp region of the gene encoding the T antigen of the BKV and JCV. JCV and BKV infections were differentiated based on the enzymatic digestion of the amplified products using BamHI endonuclease. The results indicated that none of the patients in either group was infected with the BKV, whereas 11.1% (11/99) of the control group subjects and 4% (4/100) of the kidney patients were infected with the JCV. High levels of urea in the excreted urine, low urinary cellularity, reduced bladder washout and a delay in analysing the samples may have contributed to the low prevalence of infection. The results indicate that there is a need to increase the sensitivity of assays used to detect viruses in patients with CDK, especially given that polyomavirus infections, especially BKV, can lead to a loss of kidney function following transplantation.
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Affiliation(s)
| | | | - Bárbara Brasil Santana
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil
| | | | - Ricardo Ishak
- Laboratório de Virologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil
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