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do Nascimento Gonçalves N, Caldas HC, da Silva Florim GM, Sormani GM, Arantes LMRB, Sorroche BP, Baptista MASF, Fernandes-Charpiot IMM, Nascimento-Filho CHV, de Castilho RM, Abbud-Filho M. Distinct global DNA methylation and NF-κB expression profile of preimplantation biopsies from ideal and non-ideal kidneys. J Nephrol 2022; 35:1831-1840. [PMID: 35524842 DOI: 10.1007/s40620-022-01341-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 02/09/2022] [Accepted: 04/20/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Epigenetic mechanisms may affect the ideal and non-ideal kidneys selected for transplantation and their inflammatory gene expression profile differently and may contribute to poor clinical outcomes. OBJECTIVE Study the Global DNA methylation and the expression profiles of the DNA methyltransferases (DNMTs) and nuclear factor kappa B (NF-κB) in preimplantation kidney biopsies from ideal and non-ideal kidneys (expanded criteria donor (ECD) and with KDPI > 85%). METHODS In a sample consisting of 45 consecutive pre-implantation biopsies, global DNA methylation levels were detected by LINE-1 repeated elements using bisulfite pyrosequencing. DNMT gene expression was assessed by real-time quantitative polymerase chain reaction, and NF-κB protein expression by immunofluorescence. RESULTS ECD kidneys displayed increased methylation levels in LINE-1, and DNMT1 and DNMT3B expression was upregulated when comparing ECD to standard criteria donor kidneys. Similarly, kidneys with KDPI > 85% exhibited increased LINE-1 methylation and DNMT1 upregulation when compared to a KDPI ≤ 85%. NF-κB protein expression levels were greatly increased in both types of non-ideal kidneys compared to ideal kidneys. Moreover, hypermethylation of LINE-1 was associated with cold ischemia time > 20 h and ECD kidney classification. CONCLUSIONS This study shows that global DNA hypermethylation and high expression of NF-κB occurred in both types of non-ideal kidneys and were associated with prolonged cold ischemia time. Global DNA methylation can be a useful tool to assess non-ideal kidneys and hence, could be used to expand the pool of kidneys donors.
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Affiliation(s)
- Naiane do Nascimento Gonçalves
- Department of Medicine, Faculdade de Medicina de São José do Rio Preto (FAMERP), Laboratório de Imunologia e Transplante Experimental (LITEX), Hospital de Base, Av. Brigadeiro Faria Lima, 5416, São Jose do Rio Preto, SP, 15090-000, Brazil
| | - Heloisa Cristina Caldas
- Department of Medicine, Faculdade de Medicina de São José do Rio Preto (FAMERP), Laboratório de Imunologia e Transplante Experimental (LITEX), Hospital de Base, Av. Brigadeiro Faria Lima, 5416, São Jose do Rio Preto, SP, 15090-000, Brazil
| | - Greiciane Maria da Silva Florim
- Department of Medicine, Faculdade de Medicina de São José do Rio Preto (FAMERP), Laboratório de Imunologia e Transplante Experimental (LITEX), Hospital de Base, Av. Brigadeiro Faria Lima, 5416, São Jose do Rio Preto, SP, 15090-000, Brazil
| | - Giovanna Mattiello Sormani
- Department of Medicine, Faculdade de Medicina de São José do Rio Preto (FAMERP), Laboratório de Imunologia e Transplante Experimental (LITEX), Hospital de Base, Av. Brigadeiro Faria Lima, 5416, São Jose do Rio Preto, SP, 15090-000, Brazil
| | | | | | - Maria Alice Sperto Ferreira Baptista
- Department of Medicine, Faculdade de Medicina de São José do Rio Preto (FAMERP), Laboratório de Imunologia e Transplante Experimental (LITEX), Hospital de Base, Av. Brigadeiro Faria Lima, 5416, São Jose do Rio Preto, SP, 15090-000, Brazil
| | - Ida Maria Maximina Fernandes-Charpiot
- Department of Medicine, Faculdade de Medicina de São José do Rio Preto (FAMERP), Laboratório de Imunologia e Transplante Experimental (LITEX), Hospital de Base, Av. Brigadeiro Faria Lima, 5416, São Jose do Rio Preto, SP, 15090-000, Brazil
| | | | - Rogério Moraes de Castilho
- Laboratory of Epithelial Biology, Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Mario Abbud-Filho
- Department of Medicine, Faculdade de Medicina de São José do Rio Preto (FAMERP), Laboratório de Imunologia e Transplante Experimental (LITEX), Hospital de Base, Av. Brigadeiro Faria Lima, 5416, São Jose do Rio Preto, SP, 15090-000, Brazil.
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Pinhel MADS, Sado CL, Longo GDS, Gregorio ML, Amorim GS, Florim GMDS, Mazeti CM, Martins DP, Oliveira FDN, Nakazone MA, Tognola WA, Souza DRS. Nullity of GSTT1/GSTM1 related to pesticides is associated with Parkinson's disease. Arq Neuro-Psiquiatr 2013; 71:527-32. [DOI: 10.1590/0004-282x20130076] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Accepted: 03/25/2013] [Indexed: 11/22/2022]
Abstract
Genetic and environmental factors affect the pathogenesis of Parkinson's disease (PD). Genetic variants of the enzyme glutathione S-transferases (GST) may be related to the disease. This study aimed to evaluate the influence of genetic variants of GST (GSTT1/GSTM1) and their association with the exposure to environmental toxins in PD patients. We studied 254 patients with PD and 169 controls. The GSTM1/GSTT1 variants were analyzed by polymerase chain reaction. We applied the Fisher's exact test and the χ2 test for statistical analysis (p<0.05). The present and absence for GSTT1 and GSTM1 were similar in patients and controls. The null for GSTT1 and GSTM1 (0/0) and exposure to pesticides prevailed in patients (18%) compared to controls (13%, p=0.014). This study suggests the association between PD and previous exposure to pesticides, whose effect may be enhanced in combination with null for GSTT1/GSTM1.
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