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Franco-Juárez EX, González-Villasana V, Camacho-Moll ME, Rendón-Garlant L, Ramírez-Flores PN, Silva-Ramírez B, Peñuelas-Urquides K, Cabello-Ruiz ED, Castorena-Torres F, Bermúdez de León M. Mechanistic Insights about Sorafenib-, Valproic Acid- and Metformin-Induced Cell Death in Hepatocellular Carcinoma. Int J Mol Sci 2024; 25:1760. [PMID: 38339037 PMCID: PMC10855535 DOI: 10.3390/ijms25031760] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 02/12/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is among the main causes of death by cancer worldwide, representing about 80-90% of all liver cancers. Treatments available for advanced HCC include atezolizumab, bevacizumab, sorafenib, among others. Atezolizumab and bevacizumab are immunological options recently incorporated into first-line treatments, along with sorafenib, for which great treatment achievements have been reached. However, sorafenib resistance is developed in most patients, and therapeutical combinations targeting cancer hallmark mechanisms and intracellular signaling have been proposed. In this review, we compiled evidence of the mechanisms of cell death caused by sorafenib administered alone or in combination with valproic acid and metformin and discussed them from a molecular perspective.
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Affiliation(s)
- Edgar Xchel Franco-Juárez
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey 64720, Nuevo Leon, Mexico; (E.X.F.-J.); (M.E.C.-M.); (P.N.R.-F.); (K.P.-U.)
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza 66451, Nuevo Leon, Mexico; (V.G.-V.); (L.R.-G.); (E.D.C.-R.)
| | - Vianey González-Villasana
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza 66451, Nuevo Leon, Mexico; (V.G.-V.); (L.R.-G.); (E.D.C.-R.)
| | - María Elena Camacho-Moll
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey 64720, Nuevo Leon, Mexico; (E.X.F.-J.); (M.E.C.-M.); (P.N.R.-F.); (K.P.-U.)
| | - Luisa Rendón-Garlant
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza 66451, Nuevo Leon, Mexico; (V.G.-V.); (L.R.-G.); (E.D.C.-R.)
| | - Patricia Nefertari Ramírez-Flores
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey 64720, Nuevo Leon, Mexico; (E.X.F.-J.); (M.E.C.-M.); (P.N.R.-F.); (K.P.-U.)
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64710, Nuevo Leon, Mexico;
| | - Beatriz Silva-Ramírez
- Departamento de Inmunogenética, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey 64720, Nuevo Leon, Mexico;
| | - Katia Peñuelas-Urquides
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey 64720, Nuevo Leon, Mexico; (E.X.F.-J.); (M.E.C.-M.); (P.N.R.-F.); (K.P.-U.)
| | - Ethel Daniela Cabello-Ruiz
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza 66451, Nuevo Leon, Mexico; (V.G.-V.); (L.R.-G.); (E.D.C.-R.)
| | - Fabiola Castorena-Torres
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64710, Nuevo Leon, Mexico;
| | - Mario Bermúdez de León
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey 64720, Nuevo Leon, Mexico; (E.X.F.-J.); (M.E.C.-M.); (P.N.R.-F.); (K.P.-U.)
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Granados-Tristán AL, Hernández-Luna CE, González-Escalante LA, Camacho-Moll ME, Silva-Ramírez B, Bermúdez de León M, Peñuelas-Urquides K. ESX-3 secretion system in Mycobacterium: An overview. Biochimie 2024; 216:46-55. [PMID: 37879428 DOI: 10.1016/j.biochi.2023.10.013] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 09/26/2023] [Accepted: 10/22/2023] [Indexed: 10/27/2023]
Abstract
Mycobacteria are microorganisms distributed in the environment worldwide, and some of them, such as Mycobacterium tuberculosis or M. leprae, are pathogenic. The hydrophobic mycobacterial cell envelope has low permeation and bacteria need to export products across their structure. Mycobacteria possess specialized protein secretion systems, such as the Early Secretory Antigenic Target 6 secretion (ESX) system. Five ESX loci have been described in M. tuberculosis, called ESX-1 to ESX-5. The ESX-3 secretion system has been associated with mycobacterial metabolism and growth. The locus of this system is highly conserved across mycobacterial species. Metallo-proteins regulate negative ESX-3 transcription in high conditions of iron and zinc. Moreover, this secretion system is part of an antioxidant regulatory pathway linked to Zinc. EccA3, EccB3, EccC3, EccD3, and EccE3 are components of the ESX-3 secretion machinery, whereas EsxG-EsxH, PE5-PPE4, and PE15-PPE20 are proteins secreted by this system. In addition, EspG3 and MycP3 are complementary proteins involved in transport and proteolysis respectively. This system is associated to mycobacterial virulence by releasing the bacteria from the phagosome and inhibiting endomembrane damage response. Furthermore, components of this system inhibit the host immune response by reducing the recognition of M. tuberculosis-infected cells. The components of the ESX-3 secretion system play a role in drug resistance and cell wall integrity. Moreover, the expression data of this system indicated that external and internal factors affect ESX-3 locus expression. This review provides an overview of new findings on the ESX-3 secretion system, its regulation, expression, and functions.
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Affiliation(s)
- Ana Laura Granados-Tristán
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, 64720, Nuevo León, Mexico; Universidad Autónoma de Nuevo León, Facultad de Ciencias Biológicas, San Nicolás de los Garza, 66455, Nuevo León, Mexico.
| | - Carlos Eduardo Hernández-Luna
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Biológicas, San Nicolás de los Garza, 66455, Nuevo León, Mexico.
| | - Laura Adiene González-Escalante
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, 64720, Nuevo León, Mexico.
| | - María Elena Camacho-Moll
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, 64720, Nuevo León, Mexico.
| | - Beatriz Silva-Ramírez
- Departamento de Inmunogenética, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, 64720, Nuevo León, Mexico.
| | - Mario Bermúdez de León
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, 64720, Nuevo León, Mexico.
| | - Katia Peñuelas-Urquides
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, 64720, Nuevo León, Mexico.
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Moll MEC, Martínez AMS, Cisneros BT, Onofre JIG, Floriano GN, de León MB. Side Effects of COVID-19 Vaccines in Pregnant and Lactating Mexican Women and Breastfed Infants: A Survey-Based Study. Vaccines (Basel) 2023; 11:1280. [PMID: 37631848 PMCID: PMC10459654 DOI: 10.3390/vaccines11081280] [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: 05/16/2023] [Revised: 07/10/2023] [Accepted: 07/18/2023] [Indexed: 08/27/2023] Open
Abstract
COVID-19 vaccines' safety has been extensively studied; however, further analysis is required in pregnant women, nursing mothers, and breastfed infants. Our aim was to compare the extension and severity of self-reported COVID-19 vaccine side effects in pregnant and breastfeeding women, and breastfed infants. In this cross-sectional study, COVID-19-vaccinated subjects were enrolled using an online survey in Mexico. Women were classified by pregnancy and breastfeeding status at the time of vaccination (n = 3167). After the first or only dose, there was a trend toward fewer systemic effects in pregnant women (p = 0.06). BNT162b2 (Pfizer-BioNTech) had a higher frequency of local symptoms in pregnancy. Lactating women experienced fewer local symptoms after the first or single dose (p = 0.04) and the opposite occurred after the second dose (p = 0.001). ChAdOx1 (AstraZeneca) increased the chances of developing both local and systemic symptoms after the first dose but decreased them after the second dose. The severity was similar across groups, although the result of lack of association in pregnancy requires studies with a larger sample size. Irritability was the most reported symptom in breastfed infants. This study contributes to the knowledge about the side effects in pregnant and lactating women, and breastfed babies.
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Affiliation(s)
- María Elena Camacho Moll
- Department of Molecular Biology, Northeast Biomedical Research Center, Mexican Institute of Social Security, Monterrey 64720, N.L., Mexico;
- Center for Molecular Diagnosis and Personalized Medicine, Health Sciences Division, Universidad de Monterrey, San Pedro Garza García 66238, N.L., Mexico
| | - Ana María Salinas Martínez
- Epidemiologic and Health Services Research Unit, Mexican Institute of Social Security, Monterrey 64360, N.L., Mexico
- School of Public Health and Nutrition, Autonomous University of Nuevo Leon, Monterrey 64460, N.L., Mexico
| | - Benjamín Tovar Cisneros
- School of Biological Sciences, Autonomous University of Nuevo Leon, Monterrey 66455, N.L., Mexico;
| | - Juan Ignacio García Onofre
- Family Medicine Unit No. 64, Mexican Institute of Social Security, Santa Catarina 66358, N.L., Mexico; (J.I.G.O.); (G.N.F.)
| | - Gloria Navarrete Floriano
- Family Medicine Unit No. 64, Mexican Institute of Social Security, Santa Catarina 66358, N.L., Mexico; (J.I.G.O.); (G.N.F.)
| | - Mario Bermúdez de León
- Department of Molecular Biology, Northeast Biomedical Research Center, Mexican Institute of Social Security, Monterrey 64720, N.L., Mexico;
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Camacho Moll ME, Mata Tijerina VL, Silva Ramírez B, Peñuelas Urquides K, González Escalante LA, Escobedo Guajardo BL, Cruz Luna JE, Corrales Pérez R, Gómez García S, Bermúdez de León M. Sex, Age, and Comorbidities Are Associated with SARS-CoV-2 Infection, COVID-19 Severity, and Fatal Outcome in a Mexican Population: A Retrospective Multi-Hospital Study. J Clin Med 2023; 12:jcm12072676. [PMID: 37048758 PMCID: PMC10095205 DOI: 10.3390/jcm12072676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/17/2023] [Accepted: 03/21/2023] [Indexed: 04/07/2023] Open
Abstract
People with comorbidities and the male sex are at a higher risk of developing severe COVID-19. In the present study, we aim to investigate the associated factors for infection, severity, and death due to COVID-19 in a population from Nuevo León, México. Epidemiological COVID-19 data were collected from 65 hospitals from December 2020 to May 2022. A total of 75,232 cases were compiled from which 25,722 cases were positive for SARS-CoV-2. Male sex, older age, diabetes, obesity, and hypertension were associated with infection. In addition to the above-mentioned factors, renal disease, cardiovascular disease, and immunosuppression were found to be associated with increased COVID-19 severity. These factors, as well as neurological diseases, are also associated with death due to COVID-19. When comparing the different variants of SARs-CoV-2, the variant B1.1.519 increased the probability of death by 2.23 times compared to the AY.20 variant. Male sex, older age, diabetes, obesity, and hypertension are associated with SARS-CoV-2 infection, severity, and death. Along with the aforementioned comorbidities, renal disease, cardiovascular disease, and immunosuppression are also associated with severity and death. Another factor associated with death is the presence of neurological disease. The SARS-CoV-2 B1.1.519 variant increases the odds of death compared to the SARS-CoV-2 AY.20 variant.
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Affiliation(s)
- Maria Elena Camacho Moll
- Laboratory of Molecular Biology, Northeast Biomedical Research Centre, Mexican Social Security Institute, Monterrey 64720, Mexico
| | - Viviana Leticia Mata Tijerina
- Laboratory of Immunogenetics, Northeast Biomedical Research Centre, Mexican Social Security Institute, Monterrey 64720, Mexico
| | - Beatriz Silva Ramírez
- Laboratory of Immunogenetics, Northeast Biomedical Research Centre, Mexican Social Security Institute, Monterrey 64720, Mexico
| | - Katia Peñuelas Urquides
- Laboratory of Molecular Microbiology, Northeast Biomedical Research Centre, Mexican Social Security Institute, Monterrey 64720, Mexico
| | - Laura Adiene González Escalante
- Laboratory of Molecular Microbiology, Northeast Biomedical Research Centre, Mexican Social Security Institute, Monterrey 64720, Mexico
| | - Brenda Leticia Escobedo Guajardo
- Laboratory of Molecular Research of Diseases, Northeast Biomedical Research Centre, Mexican Social Security Institute, Monterrey 64720, Mexico
| | - Jorge Eleazar Cruz Luna
- Medical Epidemiological Assistance Coordination of the State of Nuevo León, Mexican Social Security Institute, Monterrey 64000, Mexico
| | - Roberto Corrales Pérez
- Medical Epidemiological Assistance Coordination of the State of Nuevo León, Mexican Social Security Institute, Monterrey 64000, Mexico
| | - Salvador Gómez García
- Medical Epidemiological Assistance Coordination of the State of Nuevo León, Mexican Social Security Institute, Monterrey 64000, Mexico
| | - Mario Bermúdez de León
- Laboratory of Molecular Biology, Northeast Biomedical Research Centre, Mexican Social Security Institute, Monterrey 64720, Mexico
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Aguirre-Vázquez A, Castorena-Torres F, Silva-Ramírez B, Peñuelas-Urquides K, Camacho-Moll ME, Salazar-Olivo LA, Velasco I, Bermúdez de León M. Cell-type dependent regulation of pluripotency and chromatin remodeling genes by hydralazine. Stem Cell Res Ther 2023; 14:42. [PMID: 36927767 PMCID: PMC10021945 DOI: 10.1186/s13287-023-03268-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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 03/08/2023] [Indexed: 03/18/2023] Open
Abstract
BACKGROUND The generation of induced pluripotent stem cells has opened the field of study for stem cell research, disease modeling and drug development. However, the epigenetic signatures present in somatic cells make cell reprogramming still an inefficient process. This epigenetic memory constitutes an obstacle in cellular reprogramming. Here, we report the effect of hydralazine (HYD) and valproic acid (VPA), two small molecules with proven epigenetic activity, on the expression of pluripotency genes in adult (aHF) and neonatal (nbHF) human fibroblasts. METHODS aHF and nbHF were treated with HYD and/or VPA, and viability and gene expression assays for OCT4, NANOG, c-MYC, KLF4, DNMT1, TET3, ARID1A and ARID2 by quantitative PCR were performed. aHF and nbHF were transfected with episomal plasmid bearing Yamanaka factors (OCT4, SOX2, KLF4 and c-MYC) and exposed to HYD and VPA to determine the reprogramming efficiency. Methylation sensitive restriction enzyme (MSRE) qPCR assays were performed on OCT4 and NANOG promoter regions. Immunofluorescence assays were carried out for pluripotency genes on iPSC derived from aHF and nbHF. RESULTS HYD upregulated the expression of OCT4 (2.5-fold) and NANOG (fourfold) genes but not c-Myc or KLF4 in aHF and had no significant effect on the expression of all these genes in nbHF. VPA upregulated the expression of NANOG (twofold) in aHF and c-MYC in nbHF, while it downregulated the expression of NANOG in nbHF. The combination of HYD and VPA canceled the OCT4 and NANOG overexpression induced by HYD in aHF, while it reinforced the effects of VPA on c-Myc expression in nbHF. The HYD-induced overexpression of OCT4 and NANOG in aHDF was not dependent on demethylation of gene promoters, and no changes in the reprogramming efficiency were observed in both cell populations despite the downregulation of epigenetic genes DNMT1, ARID1A, and ARID2 in nbHF. CONCLUSIONS Our data provide evidence that HYD regulates the expression of OCT4 and NANOG pluripotency genes as well as ARID1A and ARID2 genes, two members of the SWI/SNF chromatin remodeling complex family, in normal human dermal fibroblasts.
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Affiliation(s)
- Alain Aguirre-Vázquez
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico.,Depto. de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica, 78216, San Luis Potosí, S.L.P., Mexico
| | | | - Beatriz Silva-Ramírez
- Departamento de Inmunogenética, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico
| | - Katia Peñuelas-Urquides
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico
| | - María Elena Camacho-Moll
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico
| | - Luis A Salazar-Olivo
- Depto. de Biología Molecular, Instituto Potosino de Investigación Científica y Tecnológica, 78216, San Luis Potosí, S.L.P., Mexico
| | - Iván Velasco
- Instituto de Fisiología Celular-Neurociencias, Universidad Nacional Autónoma de México, 04510, Mexico City, Mexico.,Laboratorio de Reprogramación Celular, Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez", 14269, Mexico City, Mexico
| | - Mario Bermúdez de León
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico.
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Camacho-Moll ME, Ramírez-Daher Z, Escobedo-Guajardo BL, Dávila-Valero JC, Rodríguez-de la Garza BL, Bermúdez de León M. ABC-GOALScl score predicts admission to the intensive care unit and mortality of COVID-19 patients over 60 years of age. BMC Geriatr 2023; 23:138. [PMID: 36899318 PMCID: PMC9999052 DOI: 10.1186/s12877-023-03864-8] [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: 06/27/2022] [Accepted: 03/01/2023] [Indexed: 03/12/2023] Open
Abstract
BACKGROUND One of the risk factors for getting seriously ill from COVID-19 and reaching high mortality rates is older age. Older age is also associated with comorbidities, which are risk factors for severe COVID-19 infection. Among the tools that have been evaluated to predict intensive care unit (ICU) admission and mortality is ABC-GOALScl. AIM In the present study we validated the utility of ABC-GOALScl to predict in-hospital mortality in subjects over 60 years of age who were positive for SARS-CoV-2 virus at the moment of admission with the purpose of optimizing sanitary resources and offering personalized treatment for these patients. METHODS This was an observational, descriptive, transversal, non-interventional and retrospective study of subjects (≥ 60 years of age), hospitalized due to COVID-19 infection at a general hospital in northeastern Mexico. A logistical regression model was used for data analysis. RESULTS Two hundred forty-three subjects were included in the study, whom 145 (59.7%) passed away, while 98 (40.3%) were discharged. Average age was 71, and 57.6% were male. The prediction model ABC-GOALScl included sex, body mass index, Charlson comorbidity index, dyspnea, arterial pressure, respiratory frequency, SpFi coefficient (Saturation of oxygen/Fraction of inspired oxygen ratio), serum levels of glucose, albumin, and lactate dehydrogenase; all were measured at the moment of admission. The area under the curve for the scale with respect to the variable of discharge due to death was 0.73 (IC 95% = 0.662-0.792). CONCLUSION The ABC-GOALScl scale to predict ICU admission in COVID-19 patients is also useful to predict in-hospital death in COVID-19 patients ≥ 60 years old.
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Affiliation(s)
- María Elena Camacho-Moll
- Department of Molecular Biology, Center for Biomedical Research at Northeast, Mexican Social Security Institute, Calle 2 de abril 501, Col. Independencia, Monterrey, Nuevo Leon, 64720, Mexico.,Center for Molecular Diagnosis and Personalized Medicine, Health Sciences Division, Universidad de Monterrey, Av. Ignacio Morones Prieto 4500-Pte, Zona Valle Poniente, Nuevo Leon, 66238, San Pedro Garza Garcia, Mexico
| | - Zayra Ramírez-Daher
- Residency in Geriatrics, Zone General Hospital No. 4, Mexican Social Security Institute, C. Mariano Matamoros 300, Centro de Guadalupe, Guadalupe, Nuevo Leon, 67100, Mexico
| | - Brenda Leticia Escobedo-Guajardo
- Department of Molecular Biology, Center for Biomedical Research at Northeast, Mexican Social Security Institute, Calle 2 de abril 501, Col. Independencia, Monterrey, Nuevo Leon, 64720, Mexico
| | - Julio César Dávila-Valero
- Residency in Geriatrics, Zone General Hospital No. 4, Mexican Social Security Institute, C. Mariano Matamoros 300, Centro de Guadalupe, Guadalupe, Nuevo Leon, 67100, Mexico
| | - Brenda Ludmila Rodríguez-de la Garza
- Residency in Geriatrics, Zone General Hospital No. 4, Mexican Social Security Institute, C. Mariano Matamoros 300, Centro de Guadalupe, Guadalupe, Nuevo Leon, 67100, Mexico.
| | - Mario Bermúdez de León
- Department of Molecular Biology, Center for Biomedical Research at Northeast, Mexican Social Security Institute, Calle 2 de abril 501, Col. Independencia, Monterrey, Nuevo Leon, 64720, Mexico.
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Martín-Estal I, Fajardo-Ramírez ÓR, Bermúdez de León M, Zertuche-Mery C, Benavides-Guajardo R, García-Cruz MI, Rodríguez De Ita J, Castilla-Cortázar I, Castorena-Torres F. Effect of Ethanol Consumption on the Placenta and Liver of Partially IGF-1-Deficient Mice: The Role of Metabolism via CYP2E1 and the Antioxidant Enzyme System. Biology 2022; 11:biology11091264. [PMID: 36138743 PMCID: PMC9495332 DOI: 10.3390/biology11091264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/16/2022] [Accepted: 08/23/2022] [Indexed: 11/17/2022]
Abstract
Simple Summary Ethanol is the most consumed drug worldwide, even during pregnancy. One of its adverse outcomes is fetal growth restriction, an alteration in development due to decreased IGF-1 levels. Several studies have shown that ethanol can impair the IGF-1 signaling pathway, thus exacerbating IGF-1 adverse effects in both intrauterine and postnatal growth and development. In this manuscript, we used a partially IGF-1-deficient mouse model to demonstrate the key role of IGF-1 in fetal development, as well as ethanol’s adverse effects on CYP2E1 expression levels and the antioxidant enzyme system during pregnancy. Abstract Ethanol use during pregnancy is a risk factor for developing adverse outcomes. Its metabolism by cytochrome P450 2E1 (CYP2E1) produces radical oxygen species (ROS), promoting cellular injury and apoptosis. To date, no studies have been conducted to elucidate the teratogenic effects due to both IGF-1 deficiency and ethanol consumption in mice placentas. The aim of this study is to determine the effect of ethanol consumption on the placenta and liver of partially IGF-1-deficient mice, the role of metabolism via CYP2E1, and the antioxidant enzyme system. Heterozygous (HZ, Igf1+/−) pregnant female mice were given water or 10% ethanol. Wild-type (WT, Igf1+/+) female mice were used as controls. At gestational day 19, pregnant dams were euthanized, and maternal liver and placentas were collected. Pregnant HZ dams were smaller than controls, and this effect was higher due to ethanol consumption. Cyp2e1 gene was overexpressed in the liver of HZ pregnant dams exposed to ethanol; at the protein level, CYP2E1 is reduced in placentas from all genotypes. The antioxidant enzymatic system was altered by ethanol consumption in both the maternal liver and placenta. The results in this work hint that IGF-1 is involved in intrauterine development because its deficiency exacerbates ethanol’s effects on both metabolism and the placenta.
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Affiliation(s)
- Irene Martín-Estal
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Ave. Morones Prieto 3000, Monterrey 64710, N.L., Mexico
| | - Óscar R. Fajardo-Ramírez
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Ave. Morones Prieto 3000, Monterrey 64710, N.L., Mexico
| | - Mario Bermúdez de León
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey 64720, N.L., Mexico
| | - Carolina Zertuche-Mery
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Ave. Morones Prieto 3000, Monterrey 64710, N.L., Mexico
| | - Rodolfo Benavides-Guajardo
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Ave. Morones Prieto 3000, Monterrey 64710, N.L., Mexico
| | - María Isabel García-Cruz
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Ave. Morones Prieto 3000, Monterrey 64710, N.L., Mexico
| | - Julieta Rodríguez De Ita
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Ave. Morones Prieto 3000, Monterrey 64710, N.L., Mexico
| | - Inma Castilla-Cortázar
- Fundación de Investigación HM Hospitales, 28015 Madrid, Spain
- Correspondence: (I.C.-C.); (F.C.-T.)
| | - Fabiola Castorena-Torres
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Ave. Morones Prieto 3000, Monterrey 64710, N.L., Mexico
- Correspondence: (I.C.-C.); (F.C.-T.)
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Camacho Moll ME, Salinas Martínez AM, Tovar Cisneros B, García Onofre JI, Navarrete Floriano G, Bermúdez de León M. Extension and Severity of Self-Reported Side Effects of Seven COVID-19 Vaccines in Mexican Population. Front Public Health 2022; 10:834744. [PMID: 35359754 PMCID: PMC8964147 DOI: 10.3389/fpubh.2022.834744] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 12/13/2021] [Accepted: 02/07/2022] [Indexed: 01/10/2023] Open
Abstract
A few studies examined the comparative side effects of Coronavirus Disease-19 (COVID-19) vaccines. We compared the extension and severity of self-reported side effects of seven COVID-19 vaccines [BNT162b2 (Pfizer-BioNTech), ChAdOx1 (AstraZeneca), mRNA-1273 (Moderna), CoronaVac (Sinovac Life Sciences), Gam-COVID-Vac (Gamaleya's Sputnik V), Ad5-nCoV (CanSinoBIO), and Ad26.CoV2.S (Johnson & Johnson/Janssen)] in the Mexican population. We also evaluated the association of type of vaccine, sex, age, comorbidity, and history of allergies to the extent and severity of side effects. This was a cross-sectional study carried out online between August 12 and September 3, 2021 in Mexico. The first inclusion criterion was to receive a COVID-19 vaccine and the second, being at least 18 years old. The survey link was distributed via multiple social media platforms. We questioned about the type of vaccine and symptoms based on short-term side effects reported in the literature. Side effect extension was classified as local, systemic, or both. We asked about the need to take medicine, stop activities/miss work, or seek medical attention. Then, a severity index was constructed based on responses. Descriptive and stepwise multivariate logistic ordinal regression analyses were used to calculate odds ratio (OR) and 95% CI for each outcome adjusted by potential confounders. The mean age was 38.9 ± 11.0 years (n = 4,024). Prevalence of at least one side effect varied between vaccines and by a number of doses. At dose 1, ChAdOx1 was the vaccine with the highest rate of at least one side effect (85%) followed by Gam-COVID-Vac (80%). Both were associated to greater extension (adjusted OR 2.53, 95% CI 2.16, 2.96 and adjusted OR 2.41, 95% CI 1.76, 3.29, respectively) and severity of side effects (adjusted OR 4.32, 95% CI 3.73, 5.00 and adjusted OR 3.00, 95% CI 2.28, 3.94, respectively). Young age (<50 years), female sex, comorbidity, and history of allergies were associated with greater extension and severity, independent of the type of vaccine and potential confounders. At dose 2, mRNA-1273 was the vaccine with the highest rate of side effects (88%) and the only vaccine associated to greater extension (adjusted OR 2.88, 95% CI 1.59, 5.21) and severity of symptoms (adjusted OR 3.14, 95% CI 1.82, 5.43). Continuous studies are necessary to acknowledge more post-vaccine symptoms in different populations.
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Affiliation(s)
- María Elena Camacho Moll
- Department of Molecular Biology, Northeast Biomedical Research Center, Mexican Institute of Social Security, Monterrey, Mexico
- Health Sciences Division, Center for Molecular Diagnosis and Personalized Medicine, Universidad de Monterrey, Monterrey, Mexico
- *Correspondence: María Elena Camacho Moll
| | - Ana María Salinas Martínez
- Epidemiologic and Health Services Research Unit, Mexican Institute of Social Security, Monterrey, Mexico
- School of Public Health and Nutrition, Autonomous University of Nuevo Leon, Monterrey, Mexico
- Ana María Salinas Martínez
| | | | | | | | - Mario Bermúdez de León
- Department of Molecular Biology, Northeast Biomedical Research Center, Mexican Institute of Social Security, Monterrey, Mexico
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9
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Peñuelas-Urquides K, Bermúdez de León M, Silva-Ramírez B, Castorena-Torres F, Molina-Salinas GM, Castro-Garza J, Becerril-Montes P, Del Olmo E, San Feliciano A, González-Escalante LA, Villarreal-Treviño L, Said-Fernández S. Two New Dihydrosphingosine Analogs Against Mycobacterium tuberculosis Affect gltA1, lprQ, and rpsO Expression. Front Microbiol 2021; 12:742867. [PMID: 34803964 PMCID: PMC8595602 DOI: 10.3389/fmicb.2021.742867] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/12/2021] [Indexed: 11/24/2022] Open
Abstract
The emergence of multidrug-resistant (MDR) Mycobacterium tuberculosis strains threaten the control of tuberculosis. New antitubercular dihydrosphingosine analogs, named UCIs, have been evaluated in preclinical studies but their cellular and molecular mechanisms of action against M. tuberculosis are still unknown. The aim of this study was to evaluate the effect of UCI exposure on gene expression of drug-sensitive H37Rv and MDR CIBIN:UMF:15:99 clones of M. tuberculosis which were isolated, phenotypically, and genetically characterized, cultured to log phase and treated with UCI compounds; followed by total RNA isolation, reverse transcription and hybridization assays on Affymetrix genomic microarrays. Data were validated with RT-qPCR assays. As results, UCI-05 and UCI-14 exposure increased gltA1 expression in drug-sensitive H37Rv clones. Furthermore, UCI-05 increased lprQ expression in MDR CIBIN:UMF:15:99 M. tuberculosis clones while UCI-14 reduced the expression of this gene in drug-sensitive H37Rv clones. In addition, UCI-05 reduced rpsO expression in drug-sensitive H37Rv clones. We found gene expression alterations that suggest these molecules may alter carbon and lipid metabolism as well as interfere in the protein-producing machinery in M. tuberculosis.
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Affiliation(s)
- Katia Peñuelas-Urquides
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Mexico.,Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León (UANL), San Nicolás de los Garza, Mexico
| | - Mario Bermúdez de León
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Mexico
| | - Beatriz Silva-Ramírez
- Departamento de Inmunogenética, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Mexico
| | | | - Gloria María Molina-Salinas
- Unidad de Investigación Médica Yucatán, Unidad Médica de Alta Especialidad, Hospital de Especialidades Centro Médico Nacional Ignacio García Téllez, Instituto Mexicano del Seguro Social, Mérida, Mexico
| | - Jorge Castro-Garza
- Laboratorio de Patogénesis Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Mexico
| | - Pola Becerril-Montes
- Departamento de Biología Celular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Mexico
| | - Esther Del Olmo
- Departamento de Ciencias Farmacéuticas, Área de Química Farmacéutica, Facultad de Farmacia, Centro de Enfermedades Tropicales de la Universidad de Salamanca (CIETUS), Instituto de Investigación Biomédica de Salamanca (IBSAL), Universidad de Salamanca, Salamanca, Spain
| | - Arturo San Feliciano
- Departamento de Ciencias Farmacéuticas, Área de Química Farmacéutica, Facultad de Farmacia, Centro de Enfermedades Tropicales de la Universidad de Salamanca (CIETUS), Instituto de Investigación Biomédica de Salamanca (IBSAL), Universidad de Salamanca, Salamanca, Spain
| | - Laura Adiene González-Escalante
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Mexico
| | - Licet Villarreal-Treviño
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León (UANL), San Nicolás de los Garza, Mexico
| | - Salvador Said-Fernández
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León (UANL), Monterrey, Mexico
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10
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Camacho-Moll ME, Sampayo-Reyes A, Castorena-Torres F, Lozano-Garza G, Alarcón-Galván G, Hernández A, Marcos R, Alcocer-González JM, Tamez-Guerra R, Bermúdez de León M. Selenite Downregulates STAT3 Expression and Provokes Lymphocytosis in the Liver of Chronically Exposed Syrian Golden Hamsters. Molecules 2021; 26:molecules26185614. [PMID: 34577085 PMCID: PMC8465886 DOI: 10.3390/molecules26185614] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/30/2021] [Accepted: 09/04/2021] [Indexed: 12/01/2022] Open
Abstract
Arsenic is considered a worldwide pollutant that can be present in drinking water. Arsenic exposure is associated with various diseases, including cancer. Antioxidants as selenite and α-tocopherol-succinate have been shown to modulate arsenic toxic effects. Since changes in STAT3 and PSMD10 gene expression have been associated with carcinogenesis, the aim of this study was to evaluate the effect of arsenic exposure and co-treatments with selenite or α-tocopherol-succinate on the expression of these genes, in the livers of chronically exposed Syrian golden hamsters. Animals were divided into six groups: (i) control, (ii) chronically treated with 100 ppm arsenic, (iii) treated with 6 ppm α-tocopherol-succinate (α-TOS), (iv) treated with 8.5 ppm selenite, (v) treated with arsenic + α-TOS, and (vi) treated with arsenic + selenite. Urine samples and livers were collected after 20 weeks of continuous exposure. The urine samples were analyzed for arsenic species by atomic absorption spectrophotometry, and real-time RT-qPCR analysis was performed for gene expression evaluation. A reduction in STAT3 expression was observed in the selenite-treated group. No differences in PSMD10 expression were found among groups. Histopathological analysis revealed hepatic lymphocytosis in selenite-treated animals. As a conclusion, long-term exposure to arsenic does not significantly alter the expression of STAT3 and PSMD10 oncogenes in the livers of hamsters; however, selenite down-regulates STAT3 expression and provokes lymphocytosis.
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Affiliation(s)
- María Elena Camacho-Moll
- Centro de Investigación Biomédica del Noreste, Departamento de Biología Molecular, Instituto Mexicano del Seguro Social, Monterrey 64720, Nuevo León, Mexico; (M.E.C.-M.); (G.L.-G.)
- Departamento de Ciencias Básicas, Vicerrectoría de Ciencias de la Salud, Universidad de Monterrey, San Pedro Garza García 66238, Nuevo León, Mexico;
| | - Adriana Sampayo-Reyes
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza 66455, Nuevo León, Mexico; (A.S.-R.); (J.M.A.-G.); (R.T.-G.)
| | | | - Gerardo Lozano-Garza
- Centro de Investigación Biomédica del Noreste, Departamento de Biología Molecular, Instituto Mexicano del Seguro Social, Monterrey 64720, Nuevo León, Mexico; (M.E.C.-M.); (G.L.-G.)
| | - Gabriela Alarcón-Galván
- Departamento de Ciencias Básicas, Vicerrectoría de Ciencias de la Salud, Universidad de Monterrey, San Pedro Garza García 66238, Nuevo León, Mexico;
| | - Alba Hernández
- Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (A.H.); (R.M.)
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Carlos III Institute of Health, 28029 Madrid, Spain
| | - Ricard Marcos
- Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain; (A.H.); (R.M.)
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Carlos III Institute of Health, 28029 Madrid, Spain
| | - Juan Manuel Alcocer-González
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza 66455, Nuevo León, Mexico; (A.S.-R.); (J.M.A.-G.); (R.T.-G.)
| | - Reyes Tamez-Guerra
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza 66455, Nuevo León, Mexico; (A.S.-R.); (J.M.A.-G.); (R.T.-G.)
| | - Mario Bermúdez de León
- Centro de Investigación Biomédica del Noreste, Departamento de Biología Molecular, Instituto Mexicano del Seguro Social, Monterrey 64720, Nuevo León, Mexico; (M.E.C.-M.); (G.L.-G.)
- Departamento de Ciencias Básicas, Vicerrectoría de Ciencias de la Salud, Universidad de Monterrey, San Pedro Garza García 66238, Nuevo León, Mexico;
- Correspondence: ; Tel.: +52-81-8190-4035
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11
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Herrera-Rodulfo A, Carrillo-Tripp M, Laura Yeverino-Gutierrez M, Peñuelas-Urquides K, Adiene González-Escalante L, Bermúdez de León M, Silva-Ramirez B. NAT2 polymorphisms associated with the development of hepatotoxicity after first-line tuberculosis treatment in Mexican patients: From genotype to molecular structure characterization. Clin Chim Acta 2021; 519:153-162. [PMID: 33932406 DOI: 10.1016/j.cca.2021.04.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 04/14/2021] [Accepted: 04/26/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND AIMS To assess the relevance of the slow acetylator phenotype based on NAT2 genotypes, among patients with pulmonary tuberculosis (PTB) that developed hepatotoxicity after first-line tuberculosis treatment in a Northeastern Mexican population. METHODS Ninety one PTB patients were included, 7 of them developed hepatotoxicity. NAT2 SNPs (rs1801279, rs1041983, rs1801280, rs1799929, rs1799930, rs1208, and rs1799931) were genotyped by TaqMan allelic discrimination assay. Statistical analyses were performed using Epi Info statistical software 7.0 and SHEsisPlus for haplotype reconstruction. The NAT2 slow non-synonymous SNP were studied by molecular dynamic analysis (MDA). RESULTS The frequency of the haplotype associated with slow acetylation status for PTB was 58%, and for with hepatotoxicity (PTB-H) represented 42.6%. Three haplotypes, NAT2*5Q, NAT2*5U, NAT2*5Va were exclusively present in seven PTB-H patients, (P = 0.01, P = 0.0006, P = 0.01, respectively). These haplotypes include the combination of two SNPs (I114T + R197Q or I114T + G286E). The effect of the SNPs on protein structure is to disrupt the CoA binding site affecting acetylation activity. CONCLUSION Our study provides insight into slow acetylation NAT2 haplotypes associated with hepatotoxicity after first-line tuberculosis treatment, for first time, in a Mexican population. The molecular mechanism acts at the CoA binding site.
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Affiliation(s)
- Aldo Herrera-Rodulfo
- Laboratorio de la Diversidad Biomolecular, Centro de investigación y de Estudios Avanzados del Instituto Politécnico Nacional Unidad Monterrey, Vía del Conocimiento 201, PIIT, C.P. 66600 Apodaca, Nuevo León, Mexico; Laboratorio de Ingeniería Genética y Genómica, Universidad Autónoma de Nuevo León, Vicente Guerrero s/n, Treviño, C.P. 64570 Monterrey, Nuevo León, Mexico; Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Calle 2 de abril - Jesús Dionisio González, Independencia, C.P. 64720 Monterrey, Nuevo León, Mexico
| | - Mauricio Carrillo-Tripp
- Laboratorio de la Diversidad Biomolecular, Centro de investigación y de Estudios Avanzados del Instituto Politécnico Nacional Unidad Monterrey, Vía del Conocimiento 201, PIIT, C.P. 66600 Apodaca, Nuevo León, Mexico
| | - Myrna Laura Yeverino-Gutierrez
- Laboratorio de Ingeniería Genética y Genómica, Universidad Autónoma de Nuevo León, Vicente Guerrero s/n, Treviño, C.P. 64570 Monterrey, Nuevo León, Mexico
| | - Katia Peñuelas-Urquides
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Calle 2 de abril - Jesús Dionisio González, Independencia, C.P. 64720 Monterrey, Nuevo León, Mexico
| | - Laura Adiene González-Escalante
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Calle 2 de abril - Jesús Dionisio González, Independencia, C.P. 64720 Monterrey, Nuevo León, Mexico
| | - Mario Bermúdez de León
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Calle 2 de abril - Jesús Dionisio González, Independencia, C.P. 64720 Monterrey, Nuevo León, Mexico
| | - Beatriz Silva-Ramirez
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Calle 2 de abril - Jesús Dionisio González, Independencia, C.P. 64720 Monterrey, Nuevo León, Mexico.
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12
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Guzmán-Navarro G, de León MB, Martín-Estal I, Durán RCD, Villarreal-Alvarado L, Vaquera-Vázquez A, Cuevas-Cerda T, Garza-García K, Cuervo-Pérez LE, Barbosa-Quintana Á, Pérez-Saucedo JE, Lara-Díaz VJ, Castorena-Torres F. Prenatal indole-3-carbinol administration activates aryl hydrocarbon receptor-responsive genes and attenuates lung injury in a bronchopulmonary dysplasia model. Exp Biol Med (Maywood) 2021; 246:695-706. [PMID: 33148012 PMCID: PMC7988727 DOI: 10.1177/1535370220963789] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 09/14/2020] [Indexed: 12/12/2022] Open
Abstract
Hyperoxia-hypoxia exposure is a proposed cause of alveolar developmental arrest in bronchopulmonary dysplasia in preterm infants, where mitochondrial reactive oxygen species and oxidative stress vulnerability are increased. The aryl hydrocarbon receptor (AhR) is one of the main activators of the antioxidant enzyme system that protects tissues and systems from damage. The present study aimed to determine if the activation of the AhR signaling pathway by prenatal administration of indole-3-carbinol (I3C) protects rat pups from hyperoxia-hypoxia-induced lung injury. To assess the activation of protein-encoding genes related to the AhR signaling pathway (Cyp1a1, Cyp1b1, Ugt1a6, Nqo1, and Gsta1), pup lungs were excised at 0, 24, and 72 h after birth, and mRNA expression levels were quantified by reverse transcription-quantitative polymerase chain reaction assays (RT-qPCR). An adapted Ratner's method was used in rats to evaluate radial alveolar counts (RACs) and the degree of fibrosis. The results reveal that the relative expression of AhR-related genes in rat pups of prenatally I3C-treated dams was significantly different from that of untreated dams. The RAC was significantly lower in the hyperoxia-hypoxia group (4.0 ± 1.0) than that in the unexposed control group (8.0 ± 2.0; P < 0.01). When rat pups of prenatally I3C-treated dams were exposed to hyperoxia-hypoxia, an RAC recovery was observed, and the fibrosis index was similar to that of the unexposed control group. A cytokine antibody array revealed an increase in the NF-κB signaling cascade in I3C-treated pups, suggesting that the pathway could regulate the inflammatory process under the stimulus of this compound. In conclusion, the present study demonstrates that I3C prenatal treatment activates AhR-responsive genes in pup's lungs and hence attenuates lung damage caused by hyperoxia-hypoxia exposure in newborns.
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Affiliation(s)
- Gabriela Guzmán-Navarro
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64710, Mexico
| | - Mario Bermúdez de León
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey 64720, Mexico
| | - Irene Martín-Estal
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64710, Mexico
| | | | | | | | - Tania Cuevas-Cerda
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64710, Mexico
| | - Karina Garza-García
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64710, Mexico
| | | | | | | | - Víctor J Lara-Díaz
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64710, Mexico
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Cerda-Armijo C, de León MB, Ruvalcaba-Ortega I, Chablé-Santos J, Canales-Del-Castillo R, Peñuelas-Urquides K, Rivera-Morales LG, Menchaca-Rodríguez G, Camacho-Moll ME, Contreras-Cordero JF, Guzmán-Velasco A, González-Rojas JI. High Prevalence of Avian Influenza Virus Among Wild Waterbirds and Land Birds of Mexico. Avian Dis 2020; 64:135-142. [PMID: 32550613 DOI: 10.1637/0005-2086-64.2.135] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 08/19/2019] [Accepted: 01/03/2020] [Indexed: 11/05/2022]
Abstract
Aquatic wild birds, especially waterfowl, have been long considered the main reservoirs of the avian influenza A virus; however, recent surveys have found an important prevalence of these viruses among land birds as well. Migration has been suggested as an important factor in the avian influenza virus dissemination. We aimed to estimate the prevalence of influenza A viruses in wild birds (waterbirds and land birds; resident and migratory) in eastern Mexico, where the three main North American migration flyways converge and where there was no previous information on this subject. We detected influenza with reverse transcription coupled with a PCR approach. Of the 534 birds sampled between 2010 and 2012, we detected the influenza A virus in a high proportion of birds (39%). Prevalence was particularly high in land birds (49%) when compared to aquatic birds (26%); there was no difference in overall prevalence between resident (39%) and migratory birds (39%). The high prevalence of the avian influenza virus in land birds was noteworthy in the innermost sampling areas in northern Mexico (Coahuila [82%] and Nuevo Leon [43%]).
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Affiliation(s)
- Claudia Cerda-Armijo
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, 66455 San Nicolás de los Garza, Nuevo León, México
| | - Mario Bermúdez de León
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720 Monterrey, Nuevo León, México.,Departamento de Ciencias Básicas, Vicerrectoría de Ciencias de la Salud, Universidad de Monterrey, 66238 San Pedro Garza García, Nuevo León, México
| | - Irene Ruvalcaba-Ortega
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, 66455 San Nicolás de los Garza, Nuevo León, México
| | - Juan Chablé-Santos
- Departamento de Zoología, Campus Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, 97100 Mérida, Yucatán, México
| | - Ricardo Canales-Del-Castillo
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, 66455 San Nicolás de los Garza, Nuevo León, México
| | - Katia Peñuelas-Urquides
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720 Monterrey, Nuevo León, México
| | - Lydia G Rivera-Morales
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, 66455 San Nicolás de los Garza, Nuevo León, México
| | - Griselda Menchaca-Rodríguez
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, 66455 San Nicolás de los Garza, Nuevo León, México
| | - María Elena Camacho-Moll
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720 Monterrey, Nuevo León, México.,Departamento de Ciencias Básicas, Vicerrectoría de Ciencias de la Salud, Universidad de Monterrey, 66238 San Pedro Garza García, Nuevo León, México
| | - Juan F Contreras-Cordero
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, 66455 San Nicolás de los Garza, Nuevo León, México
| | - Antonio Guzmán-Velasco
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, 66455 San Nicolás de los Garza, Nuevo León, México
| | - José Ignacio González-Rojas
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, 66455 San Nicolás de los Garza, Nuevo León, México,
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14
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Arriaga-Guerrero AL, Hernández-Luna CE, Rigal-Leal J, Robles-González RJ, González-Escalante LA, Silva-Ramírez B, Mercado-Hernández R, Vargas-Villarreal J, Bermúdez de León M, Peñuelas-Urquides K. LipF increases rifampicin and streptomycin sensitivity in a Mycobacterium tuberculosis surrogate. BMC Microbiol 2020; 20:132. [PMID: 32450809 PMCID: PMC7249682 DOI: 10.1186/s12866-020-01802-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 04/23/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Mortality due to tuberculosis (TB) has increased due to the development of drug resistance, the mechanisms of which have not been fully elucidated. Our research group identified a low expression of lipF gene in Mycobacterium tuberculosis clinical isolates with drug resistance. The aim of this work was to evaluate the effect of lipase F (LipF) expression on mycobacterial drug resistance. RESULTS The effects of expressing lipF from Mycobacterium tuberculosis in Mycobacterium smegmatis on resistance to antituberculosis drugs were determined with resazurin microtiter assay plate and growth kinetics. Functionality of ectopic LipF was confirmed. LipF expression reduced the rifampicin (RIF) and streptomycin (STR) minimum inhibitory concentration (MIC) from 3.12 μg/mL to 1.6 μg/mL and 0.25 μg/mL to 0.06 μg/mL respectively, moreover a reduced M. smegmatis growth in presence of RIF and STR compared with that of a control strain without LipF expression (p < 0.05 and p < 0.01) was shown. CONCLUSIONS LipF expression was associated with increased RIF and STR sensitivity in mycobacteria. Reduced LipF expression may contribute to the development of RIF and STR resistance in Mycobacterium species. Our findings provide information pertinent to understanding mycobacterial drug resistance mechanisms.
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Affiliation(s)
- Ana Leticia Arriaga-Guerrero
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo León, México
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, México
| | - Carlos E Hernández-Luna
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, México
| | - Joyce Rigal-Leal
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, México
| | - Rene J Robles-González
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, México
| | - Laura Adiene González-Escalante
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo León, México
| | - Beatriz Silva-Ramírez
- Departamento de Inmunogenética, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo León, México
| | - Roberto Mercado-Hernández
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, México
| | - Javier Vargas-Villarreal
- Departamento de Biología Celular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo León, México
| | - Mario Bermúdez de León
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo León, México
| | - Katia Peñuelas-Urquides
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo León, México.
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Leija-Salazar M, Bermúdez de León M, González-Horta A, González-Hernández B. Arachidonyl-2'-chloroethylamide (ACEA), a synthetic agonist of cannabinoid receptor, increases CB 1R gene expression and reduces dyskinesias in a rat model of Parkinson's disease. Pharmacol Biochem Behav 2020; 194:172950. [PMID: 32413434 DOI: 10.1016/j.pbb.2020.172950] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 04/25/2020] [Accepted: 05/11/2020] [Indexed: 01/20/2023]
Abstract
l-Dopa is the most effective drug used for Parkinson's disease (PD), but after long-term treatment, the vast majority of PD patients develop abnormal involuntary movements (AIMs) termed l-Dopa-induced dyskinesia (LID). Cannabinoid receptors in the basal ganglia can modulate motor functions, but their role in the treatment of LID is controversial. Therefore, the aim of this study is to evaluate the motor behavior and mRNA expression of the cannabinoid receptor-1 (CB1R), encoded by the Cnr1 gene, in the striatum and globus pallidus of a 6-hydroxydopamine rat model of PD. The evaluated rats had 6-hydroxydopamine-induced injury, LID, and LID treated with arachidonyl-2'-chloroethylamide (ACEA), a cannabinoid receptor agonist. Contralateral turns and AIMs were recorded to assess motor behavior. Gene expression was quantified by reverse transcription coupled with quantitative polymerase chain reaction using TaqMan probes. Behavioral evaluations demonstrated that dyskinetic rats treated with ACEA had a significant reduction in AIMs compared to the dyskinetic group. The expression of CB1R mRNA was significantly decreased in the 6-hydroxydopamine-injured and dyskinetic rats, compared to intact rats. The striata of dyskinetic rats treated with ACEA exhibited highly significant increases in CB1R mRNA expression. Contrary to results in the striatum, a lower CB1R expression was observed in globus pallidus from dyskinetic ACEA-treated group. In summary, significant differences in mRNA expression of CB1R were found between the evaluated groups of rats, suggesting the occurrence of compensatory mechanisms that may result in the ACEA-mediated reduction of dyskinesias in a rat model of PD.
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Affiliation(s)
- Melissa Leija-Salazar
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, Av. Universidad s/n, Ciudad Universitaria, 66451 San Nicolás de los Garza, Nuevo León, Mexico.
| | - Mario Bermúdez de León
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 2 de abril 501, Col. Independencia, 64720 Monterrey, Nuevo León, Mexico.
| | - Azucena González-Horta
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, Av. Universidad s/n, Ciudad Universitaria, 66451 San Nicolás de los Garza, Nuevo León, Mexico.
| | - Brenda González-Hernández
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, Av. Universidad s/n, Ciudad Universitaria, 66451 San Nicolás de los Garza, Nuevo León, Mexico.
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16
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Bermúdez de León M, León-Cachón RBR, Silva-Ramírez B, González-Ríos RN, Escobedo-Guajardo B, Leyva-Parra R, Tovar-Cisneros B, González-González E, Alvarado-Díaz A, Vázquez-Monsiváis O, Mata-Tijerina V, Puente-Lugo L, Álvarez-Galván E, Currás-Tuala MJ, Aguado-Barrera M, Castorena-Torres F, Alcocer-González JM, Elizondo G, Salinas-Martínez AM. Association study of genetic polymorphisms in proteins involved in oseltamivir transport, metabolism, and interactions with adverse reactions in Mexican patients with acute respiratory diseases. Pharmacogenomics J 2020; 20:613-620. [PMID: 32015454 PMCID: PMC7223759 DOI: 10.1038/s41397-020-0151-8] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 01/20/2020] [Accepted: 01/23/2020] [Indexed: 11/09/2022]
Abstract
Oseltamivir, a pro-drug, is the best option for treatment and chemoprophylaxis for influenza outbreaks. However, many patients treated with oseltamivir developed adverse reactions, including hypersensitivity, gastritis, and neurological symptoms. The aim of this study was to determine the adverse drug reactions (ADRs) in Mexican patients treated with oseltamivir and whether these ADRs are associated with SNPs of the genes involved in the metabolism, transport, and interactions of oseltamivir. This study recruited 310 Mexican patients with acute respiratory diseases and treated them with oseltamivir (75 mg/day for 5 days) because they were suspected to have influenza A/H1N1 virus infection. Clinical data were obtained from medical records and interviews. Genotyping was performed using real-time polymerase chain reaction and TaqMan probes. The association was assessed under genetic models with contingency tables and logistic regression analysis. Out of 310 patients, only 38 (12.25%) presented ADRs to oseltamivir: hypersensitivity (1.9%), gastritis (10%), and depression and anxiety (0.9%). The polymorphism ABCB1-rs1045642 was associated with adverse drug reactions under the recessive model (P = 0.017); allele C was associated with no adverse drug reactions, while allele T was associated with adverse drug reactions. The polymorphisms SLC15A1-rs2297322, ABCB1-rs2032582, and CES1-rs2307243 were not consistent with Hardy-Weinberg equilibrium, and no other associations were found for the remaining polymorphisms. In conclusion, the polymorphism rs1045642 in the transporter encoded by the ABCB1 gene is a potential predictive biomarker of ADRs in oseltamivir treatment.
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Affiliation(s)
- Mario Bermúdez de León
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico. .,Departamento de Ciencias Básicas, Vicerrectoría de Ciencias de la Salud, Universidad de Monterrey, 66238, San Pedro Garza García, Nuevo León, Mexico.
| | - Rafael B R León-Cachón
- Departamento de Ciencias Básicas, Vicerrectoría de Ciencias de la Salud, Universidad de Monterrey, 66238, San Pedro Garza García, Nuevo León, Mexico
| | - Beatriz Silva-Ramírez
- Departamento de Inmunogenética, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico
| | - Rosa Nelly González-Ríos
- Laboratorio de Diagnóstico Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico
| | - Brenda Escobedo-Guajardo
- Laboratorio de Diagnóstico Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico
| | - Roberto Leyva-Parra
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico
| | - Benjamín Tovar-Cisneros
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, 66455, San Nicolás de los Garza, Nuevo León, Mexico
| | - Everardo González-González
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico
| | - Abdiel Alvarado-Díaz
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico
| | - Ofelia Vázquez-Monsiváis
- Laboratorio de Diagnóstico Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico
| | - Viviana Mata-Tijerina
- Laboratorio de Diagnóstico Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico
| | - Lorena Puente-Lugo
- Laboratorio de Diagnóstico Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico
| | - Erick Álvarez-Galván
- Laboratorio de Diagnóstico Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico
| | - María José Currás-Tuala
- Laboratorio de Diagnóstico Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico
| | - Miguel Aguado-Barrera
- Laboratorio de Diagnóstico Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 64720, Monterrey, Nuevo León, Mexico
| | | | - Juan Manuel Alcocer-González
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, 66455, San Nicolás de los Garza, Nuevo León, Mexico
| | - Guillermo Elizondo
- Departamento de Biología Celular, CINVESTAV-IPN, Zacatenco, 07360, Ciudad de México, Mexico
| | - Ana María Salinas-Martínez
- Unidad de Investigación Epidemiológica y en Servicios de Salud, Instituto Mexicano del Seguro Social, 64360, Monterrey, Nuevo León, Mexico
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17
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Gómez-Silva M, Piñeyro-Garza E, Vargas-Zapata R, Gamino-Peña ME, León-García A, de León MB, Llerena A, León-Cachón RBR. Pharmacogenetics of amfepramone in healthy Mexican subjects reveals potential markers for tailoring pharmacotherapy of obesity: results of a randomised trial. Sci Rep 2019; 9:17833. [PMID: 31780765 PMCID: PMC6882847 DOI: 10.1038/s41598-019-54436-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 11/12/2019] [Indexed: 12/17/2022] Open
Abstract
Amfepramone (AFP) is an appetite-suppressant drug used in the treatment of obesity. Nonetheless, studies on interindividual pharmacokinetic variability and its association with genetic variants are limited. We employed a pharmacokinetic and pharmacogenetic approach to determine possible metabolic phenotypes of AFP and identify genetic markers that could affect the pharmacokinetic variability in a Mexican population. A controlled, randomized, crossover, single-blind, two-treatment, two-period, and two sequence clinical study of AFP (a single 75 mg dose) was conducted in 36 healthy Mexican volunteers who fulfilled the study requirements. Amfepramone plasma levels were measured using high-performance liquid chromatography mass spectrometry. Genotyping was performed using real-time PCR with TaqMan probes. Four AFP metabolizer phenotypes were found in our population: slow, normal, intermediate, and fast. Additionally, two gene polymorphisms, ABCB1-rs1045642 and CYP3A4-rs2242480, had a significant effect on AFP pharmacokinetics (P < 0.05) and were the predictor factors in a log-linear regression model. The ABCB1 and CYP3A4 gene polymorphisms were associated with a fast metabolizer phenotype. These results suggest that metabolism of AFP in the Mexican population is variable. In addition, the genetic variants ABCB1-rs1045642 and CYP3A4-rs2242480 may partially explain the AFP pharmacokinetic variability.
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Affiliation(s)
- Magdalena Gómez-Silva
- Forensic Medicine Service, School of Medicine, Autonomous University of Nuevo Leon, Monterrey, Nuevo Leon, Mexico.,Analytical Department of the Research Institute for Clinical and Experimental Pharmacology, Ipharma S.A, Monterrey, Nuevo Leon, Mexico
| | - Everardo Piñeyro-Garza
- Clinical Department of the Research Institute for Clinical and Experimental Pharmacology, Ipharma S.A, Monterrey, Nuevo Leon, Mexico
| | - Rigoberto Vargas-Zapata
- Quality Assurance Department of the Research Institute for Clinical and Experimental Pharmacology, Ipharma S.A, Monterrey, Nuevo Leon, Mexico
| | - María Elena Gamino-Peña
- Statistical Department of the Research Institute for Clinical and Experimental Pharmacology, Ipharma S.A, Monterrey, Nuevo Leon, Mexico
| | | | - Mario Bermúdez de León
- Department of Molecular Biology, Center for Biomedical Research of the Northeast, Mexican Institute of Social Security, Monterrey, Nuevo Leon, Mexico
| | - Adrián Llerena
- Clinical Research Center of Health Area, Hospital and Medical School of Extremadura University, Badajoz, Spain
| | - Rafael B R León-Cachón
- Center of Molecular Diagnostics and Personalized Medicine, Department of Basic Sciences, Division of Health Sciences, University of Monterrey, San Pedro Garza Garcia, Nuevo Leon, Mexico.
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18
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Silva-Ramírez B, Saenz-Saenz CA, Bracho-Vela LA, Peñuelas-Urquides K, Mata-Tijerina V, Escobedo-Guajardo BL, González-Ríos NR, Vázquez-Monsiváis O, León MBD. Association between vitamin D receptor gene polymorphisms and pulmonary tuberculosis in a Mexican population. ACTA ACUST UNITED AC 2019; 66:70-75. [DOI: 10.1016/j.ijtb.2018.04.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 04/09/2018] [Indexed: 01/31/2023]
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19
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Becerril-Esquivel C, Peñuelas-Urquides K, Blancas-Sánchez E, Zapata-Benavides P, Silva-Ramírez B, Chávez-Reyes A, Castorena-Torres F, Cisneros B, Bermúdez de León M. The polyaromatic hydrocarbon β-naphthoflavone alters binding of YY1, Sp1, and Sp3 transcription factors to the Dp71 promoter in hepatic cells. Mol Med Rep 2018; 17:6150-6155. [PMID: 29484433 DOI: 10.3892/mmr.2018.8626] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 09/26/2017] [Accepted: 01/19/2018] [Indexed: 11/06/2022] Open
Abstract
The smallest product of the Duchenne muscular dystrophy gene, dystrophin (Dp)71, is ubiquitously expressed in nonmuscle tissues. We previously showed that Dp71 expression in hepatic cells is modulated in part by stimulating factor 1 (Sp1), stimulating protein 3 (Sp3), and yin yang 1 (YY1) transcription factors, and that the polyaromatic hydrocarbon, β-naphthoflavone (β‑NF), downregulates Dp71 expression. The aim of the present study was to determine whether β‑NF represses Dp71 expression by altering mRNA stability or its promoter activity. Reverse transcription‑quantitative polymerase chain reaction was used to measure half‑life mRNA levels in β‑NF‑treated cells exposed to actinomycin D, an inhibitor of transcription, for 0, 4, 8, 12 and 16 h. Transient transfections with a plasmid carrying the Dp71 basal promoter fused to luciferase reporter gene were carried out in control and β‑NF‑treated cells. Electrophoretic mobility shift assays (EMSAs) were performed with labeled probes, corresponding to Dp71 promoter sequences, and nuclear extracts of control and β‑NF‑treated cells. To the best of our knowledge, the results demonstrated for the first time that this negative regulation takes place at the promoter level rather than the mRNA stability level. Interestingly, using EMSAs, β‑NF reduced binding of YY1, Sp1, and Sp3 to the Dp71 promoter. It also suggests that β‑NF may modulate the expression of other genes regulated by these transcription factors. In conclusion, β‑NF represses Dp71 expression in hepatic cells by altering binding of YY1, Sp1, and Sp3 to the Dp71 promoter.
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Affiliation(s)
- Carolina Becerril-Esquivel
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo León 64720, México
| | - Katia Peñuelas-Urquides
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo León 64720, México
| | - Erik Blancas-Sánchez
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo León 64720, México
| | - Pablo Zapata-Benavides
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, San Nicolás de los Garza, Nuevo León 66451, México
| | - Beatriz Silva-Ramírez
- Departamento de Inmunogenética, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo León 64720, México
| | - Arturo Chávez-Reyes
- Centro de Investigación y de Estudios Avanzados del IPN Unidad Monterrey, Apodaca, Nuevo León 66600, México
| | | | - Bulmaro Cisneros
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del IPN unidad Zacatenco, Ciudad de México 07360, México
| | - Mario Bermúdez de León
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo León 64720, México
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20
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Aguirre-Vázquez A, Sampayo-Reyes A, González-Escalante L, Hernández A, Marcos R, Castorena-Torres F, Lozano-Garza G, Taméz-Guerra R, de León MB. Selenite restores Pax6 expression in neuronal cells of chronically arsenic-exposed Golden Syrian hamsters. Acta Biochim Pol 2017; 64:635-639. [PMID: 29202485 DOI: 10.18388/abp.2017_1607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 05/05/2017] [Revised: 08/14/2017] [Accepted: 08/23/2017] [Indexed: 11/10/2022]
Abstract
Arsenic is a worldwide environmental pollutant that generates public health concerns. Various types of cancers and other diseases, including neurological disorders, have been associated with human consumption of arsenic in drinking water. At the molecular level, arsenic and its metabolites have the capacity to provoke genome instability, causing altered expression of genes. One such target of arsenic is the Pax6 gene that encodes a transcription factor in neuronal cells. The aim of this study was to evaluate the effect of two antioxidants, α-tocopheryl succinate (α-TOS) and sodium selenite, on Pax6 gene expression levels in the forebrain and cerebellum of Golden Syrian hamsters chronically exposed to arsenic in drinking water. Animals were divided into six groups. Using quantitative real-time reverse transcriptase (RT)-PCR analysis, we confirmed that arsenic downregulates Pax6 expression in nervous tissues by 53 ± 21% and 32 ± 7% in the forebrain and cerebellum, respectively. In the presence of arsenic, treatment with α-TOS did not modify Pax6 expression in nervous tissues; however, sodium selenite completely restored Pax6 expression in the arsenic-exposed hamster forebrain, but not the cerebellum. Although our results suggest the use of selenite to restore the expression of a neuronal gene in arsenic-exposed animals, its use and efficacy in the human population require further studies.
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Affiliation(s)
- Alain Aguirre-Vázquez
- Universidad Autónoma de Nuevo León, UANL, Fac. De Biología, San Nicolás delos Garza, Nuevo León, Mexico
| | - Adriana Sampayo-Reyes
- Universidad Autónoma de Nuevo León, UANL, Fac. De Biología, San Nicolás delos Garza, Nuevo León, Mexico
| | - Laura González-Escalante
- Universidad Autónoma de Nuevo León, UANL, Fac. De Biología, San Nicolás delos Garza, Nuevo León, Mexico
| | - Alba Hernández
- Grup de Mutagènesi, Departament de Genèticai de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain CIBER Epidemiologíay Salud Pública, ISCIII, Madrid, Spain
| | - Ricard Marcos
- Grup de Mutagènesi, Departament de Genèticai de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain CIBER Epidemiologíay Salud Pública, ISCIII, Madrid, Spain
| | - Fabiola Castorena-Torres
- Tecnológico de Monterrey, Escuela de Medicina, Dirección de Investigación e Innovación. Monterrey, Nuevo León, México
| | - Gerardo Lozano-Garza
- Department of Molecular Biology, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo León, Mexico
| | - Reyes Taméz-Guerra
- Universidad Autónoma de Nuevo León, UANL, Fac. De Biología, San Nicolás delos Garza, Nuevo León, Mexico
| | - Mario Bermúdez de León
- Department of Molecular Biology, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, Nuevo León, Mexico
- Departamento de Ciencias Básicas, Vicerrectoría de Ciencias de la Salud, Universidad de Monterrey, San Pedro Garza García, Nuevo León, Mexico
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21
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González-Escalante L, Peñuelas-Urquides K, Said-Fernández S, Silva-Ramírez B, Bermúdez de León M. Differential expression of putative drug resistance genes in Mycobacterium tuberculosis clinical isolates. FEMS Microbiol Lett 2015; 362:fnv194. [PMID: 26454220 DOI: 10.1093/femsle/fnv194] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2015] [Indexed: 11/13/2022] Open
Abstract
Understanding drug resistance in Mycobacterium tuberculosis requires an integrated analysis of strain lineages, mutations and gene expression. Previously, we reported the differential expression of esxG, esxH, infA, groES, rpmI, rpsA and lipF genes in a sensitive M. tuberculosis strain and in a multidrug-resistant clinical isolate. Here, we have evaluated the expression of these genes in 24 clinical isolates that belong to different lineages and have different drug resistance profiles. In vitro, growth kinetics analysis showed no difference in the growth of the clinical isolates, and thus drug resistance occurred without a fitness cost. However, a quantitative reverse transcription PCR analysis of gene expression revealed high variability among the clinical isolates, including those with similar drug resistance profiles. Due to the complexity of gene regulation pathways and the wide diversity of M. tuberculosis lineages, the use of gene expression as a molecular signature for drug resistance is not straightforward. Therefore, we recommend that the expression of M. tuberculosis genes be performed individually, and baseline expression levels should be verified among several different clinical isolates, before any further applications of these findings.
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Affiliation(s)
- Laura González-Escalante
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, 64720, Nuevo León, México Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Biológicas, San Nicolás de los Garza, 66451, Nuevo León, México
| | - Katia Peñuelas-Urquides
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, 64720, Nuevo León, México
| | - Salvador Said-Fernández
- Universidad Autónoma de Nuevo León, UANL, Facultad de Medicina, Monterrey, 64460, Nuevo León, México
| | - Beatriz Silva-Ramírez
- Departamento de Inmunogenética, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, 64720, Nuevo León, México
| | - Mario Bermúdez de León
- Departamento de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, 64720, Nuevo León, México
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Bermúdez de León M, Peñuelas-Urquides K, Aguado-Barrera ME, Currás-Tuala MJ, Escobedo-Guajardo BL, González-Ríos RN, Mata-Tijerina VL, Vázquez-Monsiváis OE. In vitro transcribed RNA molecules for the diagnosis of pandemic 2009 influenza A(H1N1) virus by real-time RT-PCR. J Virol Methods 2013; 193:487-91. [DOI: 10.1016/j.jviromet.2013.07.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 06/28/2013] [Accepted: 07/10/2013] [Indexed: 11/26/2022]
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Peñuelas-Urquides K, Villarreal-Treviño L, Silva-Ramírez B, Rivadeneyra-Espinoza L, Said-Fernández S, de León MB. Measuring of Mycobacterium tuberculosis growth. A correlation of the optical measurements with colony forming units. Braz J Microbiol 2013; 44:287-9. [PMID: 24159318 PMCID: PMC3804212 DOI: 10.1590/s1517-83822013000100042] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [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: 09/21/2011] [Accepted: 07/02/2012] [Indexed: 11/25/2022] Open
Abstract
The quantification of colony forming units (cfu), turbidity, and optical density at 600 nm (OD600) measurements were used to evaluate Mycobacterium tuberculosis growth. Turbidity and OD600 measurements displayed similar growth curves, while cfu quantification showed a continuous growth curve. We determined the cfu equivalents to McFarland and OD600 units.
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Affiliation(s)
- Katia Peñuelas-Urquides
- Laboratorio de Biología Molecular, Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, Monterrey, NL, México. ; Posgrado en Microbiología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, NL, México
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González-Escalante L, Mercado-Hernández R, González-Rojas JI, Bermúdez de León M. Plasma cholinesterase activity in the house finch, Carpodacus mexicanus, and the house sparrow, Passer domesticus, collected from pesticide-exposed agricultural land. Bull Environ Contam Toxicol 2013; 90:9-11. [PMID: 23114840 DOI: 10.1007/s00128-012-0864-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2011] [Accepted: 10/16/2012] [Indexed: 06/01/2023]
Abstract
Agricultural lands are exposed to pesticides continuously, which impact on habitat of wild species, such birds. The purpose of this study was to determine the plasma cholinesterase activity in two passeriform wild birds, the house finch (Carpodacus mexicanus) and the house sparrow (Passer domesticus), from agricultural land with exposure to pesticides. No significant difference was found in the house finch between specimens captured in non-agricultural and agricultural lands. However, house sparrows had significant differences in plasma cholinesterase activity, which indicates that this species is more sensitive to enzymatic activity inhibition by pesticides, and they could be indicators of pesticide pollution in agricultural areas.
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Affiliation(s)
- Laura González-Escalante
- Universidad Autónoma de Nuevo León, UANL, Fac. de Biología, Av. Universidad s/n Ciudad Universitaria, CP 66451, San Nicolás de los Garza, Nuevo León, Mexico
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25
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Lara-Chacón B, de León MB, Leocadio D, Gómez P, Fuentes-Mera L, Martínez-Vieyra I, Ortega A, Jans DA, Cisneros B. Characterization of an Importin α/β-recognized nuclear localization signal in β-dystroglycan. J Cell Biochem 2010; 110:706-17. [DOI: 10.1002/jcb.22581] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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26
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Avila T, Hernández-Hernández O, Almanza A, de León MB, Urban M, Soto E, Cisneros B, Felix R. Regulation of Ca v 3.1 channels by glucocorticoids. Cell Mol Neurobiol 2010; 29:1265-73. [PMID: 19533336 DOI: 10.1007/s10571-009-9422-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2009] [Accepted: 06/01/2009] [Indexed: 12/13/2022]
Abstract
The activity of low voltage-activated Ca(2+) (Ca(V)3) channels is tightly coupled to neurotransmitter and hormone secretion. Previous studies have shown that Ca(V)3 channels are regulated by glucocorticoids (GCs), though the mechanism underlying channel regulation remains unclear. Here, using the pituitary GH(3) cell line as a model, we investigated whether Ca(V)3 channel expression is under the control of GCs, and if their actions are mediated by transcriptional and/or post-transcriptional mechanisms. RT-PCR and western blot analyses showed that Ca(V)3.1 but not Ca(V)3.2 and Ca(V)3.3 channels is expressed in the GH(3) cells, and patch clamp recordings confirmed that Ca(2+) currents through low voltage-activated channels were decreased after chronic treatment with GCs. Consistent with this, total plasma membrane expression of Ca(V)3.1 protein as analyzed by cell-surface biotinylation assays and semi-quantitative western blotting was also down-regulated, while quantitative real-time RT-PCR analysis revealed a significant decrease of Ca(V)3.1 mRNA expression in the treated cells. In contrast, patch-clamp recordings on HEK-293 cells stably expressing recombinant Ca(V)3.1 channels showed that Ca(2+) currents were not affected by GC treatment. These results suggest that decreased transcription is a likely mechanism to explain the inhibitory actions of GCs on the functional expression of native Ca(V)3.1 channels.
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Affiliation(s)
- Traudy Avila
- Department of Physiology, Biophysics and Neuroscience, Center for Research and Advanced Studies of the National Polytechnic Institute, Cinvestav-IPN, Mexico City, Mexico
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27
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Morales-Lázaro SL, González-Ramírez R, Gómez P, Tapia-Ramírez V, de León MB, Cisneros B. Induction of dystrophin Dp71 expression during neuronal differentiation: opposite roles of Sp1 and AP2alpha in Dp71 promoter activity. J Neurochem 2009; 112:474-85. [PMID: 19943855 DOI: 10.1111/j.1471-4159.2009.06467.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this study, we delineated the molecular mechanisms that modulate Dp71 expression during neuronal differentiation, using the N1E-115 cell line. We demonstrated that Dp71 expression is up-regulated in response to cAMP-mediated neuronal differentiation of these cells, and that this induction is controlled at promoter level. Functional deletion analysis of the Dp71 promoter revealed that a 5'-flanking 159-bp DNA fragment that contains Sp1 and AP2 binding sites is necessary and sufficient for basal expression of this TATA-less promoter, as well as for its induction during neuronal differentiation. Electrophoretic mobility shift and chromatin immunoprecipitation assays revealed that Sp1 and AP2alpha bind to their respective DNA elements within the Dp71 basal promoter. Overall, mutagenesis assays on the Sp1 and AP2 binding sites, over-expression of Sp1 and AP2alpha, as well as knock-down experiments on Sp1 and AP2alpha gene expression established that Dp71 basal expression is controlled by the combined action of Sp1 and AP2alpha, which act as activator and repressor, respectively. Furthermore, we demonstrated that induction of Dp71 expression in differentiated cells is the result of the maintenance of positive regulation exerted by Sp1, as well as of the loss of AP2alpha binding, which ultimately releases the promoter from repression.
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Affiliation(s)
- Sara Luz Morales-Lázaro
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del I.P.N., Avenida Instituto Politécnico Nacional 2508, México, D.F., México
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Sánchez-Moreno I, Canto P, Munguía P, de León MB, Cisneros B, Vilchis F, Reyes E, Méndez JP. DNA binding activity studies and computational approach of mutant SRY in patients with 46, XY complete pure gonadal dysgenesis. Mol Cell Endocrinol 2009; 299:212-8. [PMID: 19007850 DOI: 10.1016/j.mce.2008.10.012] [Citation(s) in RCA: 10] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2008] [Revised: 10/10/2008] [Accepted: 10/13/2008] [Indexed: 11/30/2022]
Abstract
Mutations of SRY are the cause of 46,XY complete pure gonadal dysgenesis (PGD) in 10-15% of patients. In this study, DNA was isolated and sequenced from blood leukocytes and from paraffin-embedded gonadal tissue in five patients with 46,XY complete PGD. DNA binding capability was analyzed by three different methods. The structure of the full length SRY and its mutant proteins was carried out using a protein molecular model. DNA analysis revealed two mutations and one synonymous polymorphism: in patient #4 a Y96C mutation, and a E156 polymorphism; in patient #5 a S143G mosaic mutation limited to gonadal tissue. We demonstrated, by all methods used, that both mutant proteins reduced SRY DNA binding activity. The three-dimensional structure of SRY suggested that besides the HMG box, the carboxy-terminal region of SRY interacts with DNA. In conclusion, we identified two SRY mutations and a polymorphism in two patients with 46,XY complete PGD, demonstrating the importance of the carboxy-terminal region of SRY in DNA binding activity.
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Affiliation(s)
- Irene Sánchez-Moreno
- Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en Biología del Desarrollo, Centro Médico Nacional Siglo XXI, Coordinación de Investigación en Salud, Mexico, D.F., Mexico
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Abstract
Myotonic dystrophy type 1 (DM1) is a dominant neuromuscular disorder caused by the expansion of trinucleotide CTG repeats in the 3'-untranslated region (3'-UTR) of the DMPK gene. Prominent features of classical DM1 are muscle wasting and myotonia, whereas mental retardation is distinctive for congenital DM1. The main nervous system symptoms of DM1 are cognitive impairment, neuroendocrine dysfunction, and personality and behavior abnormalities. It is thought that expansion of CTG repeats causes DM1 pathology through different molecular mechanisms; however, a growing body of evidence indicates that an RNA gain-of-function mechanism plays a major role in the disease development. At the skeletal muscle level, three main molecular events can be distinguished in this model: 1) formation of nuclear foci that are composed at least of mutant DMPK mRNA and recruited RNA-binding proteins, such as splicing regulators and transcription factors; 2) disturbance of alternative splicing of specific genes; and 3) impairment of cell differentiation. Contrasting with the substantial advances in understanding DM1 muscle pathology, the molecular basis of DM1 in the nervous system has just started to be revealed. This review focuses in the DM1 nervous system pathology and provides an overview of the genetic and molecular studies analyzing the effects of the DMPK gene CUG expanded repeats on cell function in neuronal systems. A comparison between the molecular mechanisms of DM1 in the skeletal muscle and those identified in DM1 nervous system models is provided. Finally, future directions in the study of DM1 in the nervous system are discussed.
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Affiliation(s)
- Mario Bermúdez de León
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del I.P.N., México D.F., México
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Castorena-Torres F, de León MB, Cisneros B, Zapata-Pérez O, Salinas JE, Albores A. Changes in gene expression induced by polycyclic aromatic hydrocarbons in the human cell lines HepG2 and A549. Toxicol In Vitro 2008; 22:411-21. [DOI: 10.1016/j.tiv.2007.10.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Andrade A, de León MB, Hernández-Hernández O, Cisneros B, Felix R. Myotonic dystrophy CTG repeat expansion alters Ca2+channel functional expression in PC12 cells. FEBS Lett 2007; 581:4430-8. [PMID: 17719582 DOI: 10.1016/j.febslet.2007.08.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2007] [Revised: 08/07/2007] [Accepted: 08/08/2007] [Indexed: 12/22/2022]
Abstract
We previously reported that expression of myotonic dystrophy (DM1) expanded CUG repeats impedes NGF-induced differentiation in a PC12 clone (CTG90 cells). Here, we present evidence for changes in the fractional contribution of distinct voltage-gated Ca(2+) channels, key elements in neurotrophin-promoted differentiation, to the total Ca(2+) current in the CTG90 cells. Patch-clamp recordings showed that the relative proportion of pharmacologically isolated Ca(2+) channel types differed between control and CTG90 cells. Particularly, the functional expression of N-type channels was significantly reduced. Though quantitative real-time RT-PCR revealed that transcripts for the pore-forming subunit encoding the N-type channels remained unchanged, the protein level analyzed by semi-quantitative Western blotting was down-regulated in the CTG90 cells. These data suggest modifications in the processing of N-type Ca(2+) channels in PC12 cells expressing the DM1 mutation.
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Affiliation(s)
- Arturo Andrade
- Department of Physiology, Biophysics and Neuroscience, Center for Research and Advanced Studies of the National Polytechnic Institute (Cinvestav-IPN), Mexico City, Mexico
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Mendoza-Cantú A, Castorena-Torres F, Bermúdez de León M, Cisneros B, López-Carrillo L, Rojas-García AE, Aguilar-Salinas A, Manno M, Albores A. Occupational toluene exposure induces cytochrome P450 2E1 mRNA expression in peripheral lymphocytes. Environ Health Perspect 2006; 114:494-9. [PMID: 16581535 PMCID: PMC1440770 DOI: 10.1289/ehp.8192] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Print workers are exposed to organic solvents, of which the systemic toxicant toluene is a main component. Toluene induces expression of cytochrome P450 2E1 (CYP2E1), an enzyme involved in its own metabolism and that of other protoxicants, including some procarcinogens. Therefore, we investigated the association between toluene exposure and the CYP2E1 response, as assessed by mRNA content in peripheral lymphocytes or the 6-hydroxychlorzoxazone (6OH-CHZ)/chlorzoxazone (CHZ) quotient (known as CHZ metabolic ratio) in plasma, and the role of genotype (5 -flanking region RsaI/PstI polymorphic sites) in 97 male print workers. The geometric mean (GM) of toluene concentration in the air was 52.80 ppm (10-760 ppm); 54% of the study participants were exposed to toluene concentrations that exceeded the maximum permissible exposure level (MPEL). The GM of urinary hippuric acid at the end of a work shift (0.041 g/g creatinine) was elevated relative to that before the shift (0.027 g/g creatinine; p < 0.05). The GM of the CHZ metabolic ratio was 0.33 (0-9.3), with 40% of the subjects having ratios below the GM. However, the average CYP2E1 mRNA level in peripheral lymphocytes was 1.07 (0.30-3.08), and CYP2E1 mRNA levels within subjects correlated with the toluene exposure ratio (environmental toluene concentration:urinary hippuric acid concentration) (p = 0.014). Genotype did not alter the association between the toluene exposure ratio and mRNA content. In summary, with further validation, CYP2E1 mRNA content in peripheral lymphocytes could be a sensitive and noninvasive biomarker for the continuous monitoring of toluene effects in exposed persons.
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Affiliation(s)
- Ania Mendoza-Cantú
- Sección de Toxicología, Centro de Investigación y de Estudios Avanzados, National Polytechnical Institute, CP 07360, Mexico City, Mexico
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Bermúdez de León M, Gómez P, Elizondo G, Zatarain-Palacios R, García-Sierra F, Cisneros B. β-naphthoflavone represses dystrophin Dp71 expression in Hepa-1 cells. ACTA ACUST UNITED AC 2006; 1759:152-8. [PMID: 16730384 DOI: 10.1016/j.bbaexp.2006.03.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2005] [Revised: 03/07/2006] [Accepted: 03/28/2006] [Indexed: 11/15/2022]
Abstract
Dystrophin Dp71 is expressed in hepatic tissue; however, its function in this tissue remains unknown. The Dp71 promoter sequence contains conserved CACGC motifs, which constitute the invariant core sequence of xenobiotic-regulatory elements. These elements function as target sites for the aryl hydrocarbon receptor/aryl hydrocarbon nuclear translocator (Ahr/ARNT) in genes regulated by this transcription factor. Thus, Dp71 expression in hepatic cells would be regulated by Ahr signaling. In this study, the effect of the xenobiotics beta-Naphthoflavone (betaNF), 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) and Benzo[a]Pyrene (BaP) on Dp71 expression was analyzed in Hepa-1 cells. It was demonstrated that betaNF, but not BaP or TCDD, represses Dp71 expression at both transcriptional and translational levels. To test directly the involvement of the Ahr signaling in the negative regulation of Dp71, we analyzed the effect of betaNF on Dp71 expression in the liver of wild type (Ahr+/+) and AHR-null (Ahr-/-) mice. The Dp71 mRNA repression, caused by the betaNF treatment, was also found in the liver tissue of wild type mice; however, such negative effect was reversed in the liver of AHR-null mice, which supports the participation of the Ahr signaling in Dp71 downregulation. Modulation of Dp71 expression by betaNF may represent a novel mechanism of Ahr action.
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Affiliation(s)
- Mario Bermúdez de León
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del I.P.N., Av. IPN 2508, Col. San Pedro Zacatenco, México, D.F., 07360, México
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Abstract
Previously, we reported that PC12 cells with decreased Dp71 expression (antisense-Dp71 cells) display deficient nerve-growth-factor-induced neurite outgrowth. In this study, we show that disturbed neurite outgrowth of antisense-Dp71 cells is accompanied by decreased adhesion activity on laminin, collagen and fibronectin. In wild-type cells, the immunostaining of Dp71 and beta1-integrin overlaps in the basal area contacting the substrate, but staining of both proteins decrease in the antisense-Dp71 cells. Morphology of antisense-Dp71 cells at the electron microscopic level is characterized by the lack of filopodia, cellular projections involved in adhesion. Our findings suggest that Dp71 is required for the efficient PC12 cell attachment to beta1-integrin-dependent substrata and that decreased adhesion activity of the antisense-Dp71 cells could determine their deficiency to extend neurites.
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Affiliation(s)
| | - Joel Cerna-Cortés
- Department of Genetics and Molecular Biology
Centro de Investigation y de Estudios Avanzados del IPNMX
| | - Mario Bermúdez de León
- Department of Genetics and Molecular Biology
Centro de Investigation y de Estudios Avanzados del IPNMX
| | | | - Everardo González
- Department of Genetics and Molecular Biology
Centro de Investigation y de Estudios Avanzados del IPNMX
| | - Dominique Mornet
- Muscle et pathologies
INSERM : ERI25IFR3Université Montpellier I : EA4202hopital arnaud de villeneuve
371, avenue du doyen gaston giraud 34295 Montpellier Cedex 05,FR
- * Correspondence should be adressed to: Dominique Mornet
| | - Bulmaro Cisneros
- Department of Genetics and Molecular Biology
Centro de Investigation y de Estudios Avanzados del IPNMX
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Castorena-Torres F, Mendoza-Cantú A, de León MB, Cisneros B, Zapata-Pérez O, López-Carrillo L, Salinas JE, Albores A. CYP1A2 phenotype and genotype in a population from the Carboniferous Region of Coahuila, Mexico. Toxicol Lett 2005; 156:331-9. [PMID: 15763632 DOI: 10.1016/j.toxlet.2004.12.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2004] [Revised: 12/07/2004] [Accepted: 12/08/2004] [Indexed: 11/29/2022]
Abstract
CYP1A2 regulation by polycyclic aromatic hydrocarbons (PAHs) exposure and polymorphism was investigated in 46 male volunteers from the Carboniferous Region in northern Coahuila, Mexico. PAH exposure was estimated by the urinary excretion of 1-hydroxypyrene (1-OHP), whereas the regulatory effects were assessed by the caffeine metabolic ratio (CMR). Genotype was evaluated by determining 5'-flanking region (-2964) and intron I (734) polymorphisms. A statistically significant difference in the urinary 1-OHP geometric means of Barroterán, Cloete and Juárez (2.30, 0.45 and 0.04, respectively) was observed. As for the genotype, the intron I distribution was 0% C/C, 46% C/A and 54% A/A, whereas that of the 5'-flanking region was 26% G/G, 42% G/A and 32% A/A. Both distributions were in agreement with the Hardy-Weinberg equilibrium model. A greater enzyme activity was observed in the A/A compared to C/A individuals according to the CMR (P<0.001), whereas the 5'-flanking region polymorphism showed no effect on CYP1A2 enzymatic activity. These results suggest that intron I polymorphism and PAH exposure are relevant factors that modulate CYP1A2 enzymatic activity.
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Affiliation(s)
- Fabiola Castorena-Torres
- Sección Externa de Toxicología, Centro de Investigación y de Estudios Avanzados del IPN, Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Mexico City C.P. 07360, México
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de León MB, Montañez C, Gómez P, Morales-Lázaro SL, Tapia-Ramírez V, Valadez-Graham V, Recillas-Targa F, Yaffe D, Nudel U, Cisneros B. Dystrophin Dp71 Expression Is Down-regulated during Myogenesis. J Biol Chem 2005; 280:5290-9. [PMID: 15550398 DOI: 10.1074/jbc.m411571200] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Dp71 expression is present in myoblasts but declines during myogenesis to avoid interfering with the function of dystrophin, the predominant Duchenne muscular dystrophy gene product in differentiated muscle fibers. To elucidate the transcriptional regulatory mechanisms operating on the developmentally regulated expression of Dp71, we analyzed the Dp71 expression and promoter activity during myogenesis of the C2C12 cells. We demonstrated that the cellular content of Dp71 transcript and protein decrease in myotubes as a consequence of the negative regulation that the differentiation stimulus exerts on the Dp71 promoter. Promoter deletion analysis showed that the 224-bp 5'-flanking region, which contains several Sp-binding sites (Sp-A to Sp-D), is responsible for the Dp71 promoter basal activity in myoblasts as well as for down-regulation of the promoter in differentiated cells. Electrophoretic mobility shift and chromatin immunoprecipitation assays indicated that Sp1 and Sp3 transcription factors specifically bind to the Sp-binding sites in the minimal Dp71 promoter region. Site-directed mutagenesis assay revealed that Sp-A is the most important binding site for the proximal Dp71 promoter activity. Additionally, cotransfection of the promoter construct with Sp1- and Sp3-expressing vectors into Drosophila SL2 cells, which lack endogenous Sp family, confirmed that these proteins activate specifically the minimal Dp71 promoter. Endogenous Sp1 and Sp3 proteins were detected only in myoblasts and not in myotubes, which indicates that the lack of these factors causes down-regulation of the Dp71 promoter activity in differentiated cells. In corroboration, efficient promoter activity was restored in differentiated muscle cells by exogenous expression of Sp1 and Sp3.
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Affiliation(s)
- Mario Bermúdez de León
- Department of Genetics and Molecular Biology, Centro de Investigación y de Estudios Avanzados del I.P.N., 07360 México
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Delgado-Olguín P, Rosas-Vargas H, Recillas-Targa F, Zentella-Dehesa A, Bermúdez de León M, Cisneros B, Salamanca F, Coral-Vázquez R. NFI-C2 negatively regulates α-sarcoglycan promoter activity in C2C12 myoblasts. Biochem Biophys Res Commun 2004; 319:1032-9. [PMID: 15184085 DOI: 10.1016/j.bbrc.2004.05.074] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2004] [Indexed: 10/26/2022]
Abstract
alpha-Sarcoglycan striated muscle-specific protein is a member of the sarcoglycan-sarcospan complex. Positive and negative transcriptional regulation of sarcoglycan genes are important in sarcoglycan's intracellular localization and sarcolemmal stability. In the present work we assessed the function of NFI transcription factors in the regulation of alpha-sarcoglycan promoter through the C2C12 cell line differentiation. NFI factors act alternatively as activators and negative modulators of alpha-sarcoglycan promoter activity. In myoblasts NFI-A1.1 and NFI-B2 are activators, whereas NFI-C2 and NFI-X2 are negative regulators. In myotubes, all NFI members are activators, being NFI-C2 the less potent. We identified the alpha-sarcoglycan promoter NFI-C2 response element by testing progressive deletion constructs and point mutations in C2C12 cells over-expressing NFI-C2. Gel-shift and chromatin immunoprecipitation experiments demonstrated that NFI factors are indeed interacting in vitro and in vivo with the binding sequence. These results suggest a NFI role in C2C12 cell differentiation.
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Affiliation(s)
- Paul Delgado-Olguín
- Unidad de Investigación Médica en Genética Humana, Hospital de Pediatría, Centro Médico Nacional Siglo XXI-IMSS, Mexico City, Mexico
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