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Rábano A, Guerrero Márquez C, Juste RA, Geijo MV, Calero M. Medial Temporal Lobe Involvement in Human Prion Diseases: Implications for the Study of Focal Non Prion Neurodegenerative Pathology. Biomolecules 2021; 11:biom11030413. [PMID: 33802224 PMCID: PMC7998497 DOI: 10.3390/biom11030413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/07/2021] [Accepted: 03/08/2021] [Indexed: 01/29/2023] Open
Abstract
Human prion and non-prion neurodegenerative diseases share pathogenic mechanisms and neuropathological features. The lesion profile of a particular entity results from specific involvement of vulnerable neuron populations and connectivity circuits by a pathogenic protein isoform with strain-like properties. The lesion profile of the medial temporal lobe (MTL) was studied in postmortem tissue of 143 patients with human prion disease (HPD) including sporadic, genetic, and acquired forms. Most cases (90%) were classified according to PrPres type and/or PRNP codon 129 status, in addition to a full neuropathological profile. Mixed histotypes represented 29.4% of total sporadic Creutzfeldt-Jakob disease (sCJD) cases. An intensity score of involvement including spongiosis and astrogliosis was determined for the amygdala, presubiculum, subiculum, entorhinal cortex, CA1 to CA4 sectors of the hippocampal cortex, and dentate gyrus. Connectivity hubs within the MTL presented the highest scores. Diverse lesion profiles were obtained for different types and subtypes of HPD. Impact of mixed PrPres types on the MTL lesion profile was higher for sCJDMV2K cases than in other histotypes. Differences between MTL profiles was globally consistent with current evidence on specific strains in HPD. These results may be relevant for the analysis of possible strain effects in focal non-prion neurodegenerative conditions limited to the MTL.
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Affiliation(s)
- Alberto Rábano
- Neuropathology Department, Alzheimer’s Disease Research Unit, CIEN Foundation, Institute of Health Carlos III, Queen Sofía Foundation Alzheimer Research Center, 28031 Madrid, Spain
- CIEN Foundation and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Institute of Health Carlos III, 28031 Madrid, Spain;
- Correspondence:
| | - Carmen Guerrero Márquez
- Neurological Tissue Bank—HUFA Biobank, Hospital Universitario Fundación Alcorcón, 28922 Madrid, Spain;
| | - Ramón A. Juste
- Department of Animal Health, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), Parque Científico y Tecnológico de Bizkaia P812, 48160 Derio, Spain; (R.A.J.); (M.V.G.)
| | - María V. Geijo
- Department of Animal Health, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), Parque Científico y Tecnológico de Bizkaia P812, 48160 Derio, Spain; (R.A.J.); (M.V.G.)
| | - Miguel Calero
- CIEN Foundation and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Institute of Health Carlos III, 28031 Madrid, Spain;
- Chronic Disease Program, Institute of Health Carlos III, 28222 Madrid, Spain
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Soliman SE, D'Silva CN, Dimaras H, Dzneladze I, Chan H, Gallie BL. Clinical and genetic associations for carboplatin-related ototoxicity in children treated for retinoblastoma: A retrospective noncomparative single-institute experience. Pediatr Blood Cancer 2018; 65:e26931. [PMID: 29350448 DOI: 10.1002/pbc.26931] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Revised: 11/22/2017] [Accepted: 11/24/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Children with retinoblastoma treated with carboplatin chemotherapy risk moderate to severe, irreversible hearing loss. Based on published evidence, we hypothesized that ototoxicity risk is associated with clinical parameters and variants in candidate genes in drug metabolism pathways (methyltransferases [thiopurine S-methyltransferase, TPMT] and [catechol-O-methyltransferase, COMT], and drug transporter ABCC3). PROCEDURE We retrospectively reviewed clinical records of patients with retinoblastoma treated with carboplatin chemotherapy regarding age (at diagnosis and chemotherapy initiation), chemotherapy sessions (cycles number, drug doses, and cumulative carboplatin dose), and hearing loss (defined as ototoxicity ≥grade 2 by at least one classification system). Blood samples were genotyped for genetic variants in TPMT (rs12201199, rs1800460), COMT (rs4646316, rs9332377), and ABCC3 (rs1051640) by quantitative PCR and confirmed by allele-specific PCR. Univariate statistical tests, receiver-operating characteristic analysis, and Kaplan-Meier curves were used to examine the association between hearing loss, clinical factors, and variants in candidate genes. RESULTS Audiometric data and stored DNA were available for 71 patients with retinoblastoma (88% carried an RB1 pathogenic variant allele). Median carboplatin cumulative dose was 1,400 mg/m2 (260-5,148 mg/m2 ). Ototoxicity occurred in 18 patients (25%), strongly associated with age at diagnosis (P = 0.01) and age at chemotherapy initiation (OR = 4.99, P = 0.008). The highest likelihood ratio of hearing loss was associated with chemotherapy initiation <4.25 months of age. Ototoxicity was not associated with any tested genetic variants. CONCLUSIONS We observed a 25% prevalence of ototoxicity in patients with retinoblastoma treated with carboplatin, higher than previously published. Age at chemotherapy initiation was associated with carboplatin-induced ototoxicity, with children <4.25 months of age at highest risk.
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Affiliation(s)
- Sameh E Soliman
- Faculty of Medicine, Department of Ophthalmology, University of Alexandria, Alexandria, Egypt.,Department of Ophthalmology and Vision Science, Hospital for Sick Children, Toronto, Canada
| | - Crystal N D'Silva
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | - Helen Dimaras
- Department of Ophthalmology and Vision Science, Hospital for Sick Children, Toronto, Canada.,Department of Ophthalmology and Vision Science, University of Toronto, Toronto, Canada.,Child Health Evaluative Sciences Program, SickKids Research Institute, Toronto, Canada.,Division of Clinical Public Health, Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | - Irakli Dzneladze
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | - Helen Chan
- Division of Haematology/Oncology, Hospital for Sick Children, Toronto, Canada
| | - Brenda L Gallie
- Department of Ophthalmology and Vision Science, Hospital for Sick Children, Toronto, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, Canada.,Department of Ophthalmology and Vision Science, University of Toronto, Toronto, Canada
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Forletti A, Juliarena M, Ceriani C, Amadio A, Esteban E, Gutiérrez S. Identification of cattle carrying alleles associated with resistance and susceptibility to the Bovine Leukemia Virus progression by real-time PCR. Res Vet Sci 2013; 95:991-5. [DOI: 10.1016/j.rvsc.2013.07.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Revised: 07/14/2013] [Accepted: 07/16/2013] [Indexed: 10/26/2022]
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Calero O, Bullido MJ, Clarimón J, Hortigüela R, Frank-García A, Martínez-Martín P, Lleó A, Rey MJ, Sastre I, Rábano A, de Pedro-Cuesta J, Ferrer I, Calero M. Genetic variability of the gene cluster CALHM 1-3 in sporadic Creutzfeldt-Jakob disease. Prion 2012; 6:407-12. [PMID: 22874670 DOI: 10.4161/pri.20785] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Perturbations of calcium homeostasis have been associated with several neurodegenerative disorders. A common polymorphism (rs2986017) in the CALHM1 gene, coding for a regulator of calcium homeostasis, is a genetic risk factor for the development of Alzheimer disease (AD). Although some authors failed to confirm these results, a meta-analysis has shown that this polymorphism modulates the age at disease onset. Furthermore, a recent association study has explored the genetic variability of CALHM1 gene and two adjacent paralog genes (CALHM3 and CALHM2) in an Asian population. Since several lines of evidence suggest that AD and prion diseases share pathophysiologic mechanisms, we investigated for the first time the genetic variability of the gene cluster formed by CALHM1 and its paralogs in a series of 235 sporadic Creutzfeldt-Jakob disease (sCJD) patients, and compared the genotypic and allelic frequencies with those presented in 329 controls from the same ancestry. As such, this work also represents the first association analysis of CALHM genes in sCJD. Sequencing analysis of the complete coding regions of the genes demonstrated the presence of 10 single nucleotide polymorphisms (SNP) within the CALHM genes. We observed that rs4918016-rs2986017-rs2986018 and rs41287502-rs41287500 polymorphic sites at CALHM1 were in linkage disequilibrium. We found marginal associations for sCJD risk at CALHM1 polymorphic sites rs41287502 and rs41287500 [coding for two linked missense mutations (p.(Met323Ile); (Gly282Cys)], and rs2986017 [p.(Leu86Pro)]. Interestingly, a TGG haplotype defined by the rs4918016-rs2986017-rs2986018 block was associated with sCJD. These findings underscore the need of future multinational collaborative initiatives in order to corroborate these seminal data.
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Affiliation(s)
- Olga Calero
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Spain.
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Muñoz-Nieto M, Ramonet N, López-Gastón JI, Cuadrado-Corrales N, Calero O, Díaz-Hurtado M, Ipiens JR, Ramón y Cajal S, de Pedro-Cuesta J, Calero M. A novel mutation I215V in the PRNP gene associated with Creutzfeldt-Jakob and Alzheimer's diseases in three patients with divergent clinical phenotypes. J Neurol 2012; 260:77-84. [PMID: 22763467 DOI: 10.1007/s00415-012-6588-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Revised: 05/18/2012] [Accepted: 06/12/2012] [Indexed: 12/24/2022]
Abstract
Genetic human prion diseases are autosomal dominant disorders associated with different mutations in the PRNP gene that are manifested as distinct clinical phenotypes. Here, we report a new pathogenic missense mutation (c.[643A>G], p.[I215V]) in the PRNP gene associated with three pathologically confirmed cases: two of Creutzfeldt-Jakob disease (CJD) and one of Alzheimer's disease (AD) in two different families from the same geographical region in Spain. This mutation has not been found in any of more than 2,000 control cases studied. It represents a conservative amino acid change, and the same change is observed in the PRNP gene from other species. The two CJD cases were homozygous at codon 129 (M/M), but showed divergent clinical phenotypes with onset at ages 55 and 77 years and illness durations of 15 and 6 months, respectively. The postmortem neuropathological analysis of these cases showed homogeneous features compatible with CJD. Interestingly, the AD case (a brother of one of the CJD cases) was heterozygous at codon 129 (M/V). No familiar history was documented for any of the cases, suggesting a de novo mutation, or a partial, age-dependent penetration of the mutation, perhaps related to codon 129 status. This new mutation extends the list of known pathogenic mutations responsible for genetic CJD, reinforces the clinical heterogeneity of the disease, and advocates for the inclusion of PRNP gene examination in the diagnostic workup of patients with poorly classifiable dementia, even in the absence of family history.
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Affiliation(s)
- Mercedes Muñoz-Nieto
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Spain
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Calero O, Bullido MJ, Clarimón J, Frank-García A, Martínez-Martín P, Lleó A, Rey MJ, Rábano A, Blesa R, Gómez-Isla T, Valdivieso F, de Pedro-Cuesta J, Ferrer I, Calero M. Genetic cross-interaction between APOE and PRNP in sporadic Alzheimer's and Creutzfeldt-Jakob diseases. PLoS One 2011; 6:e22090. [PMID: 21799773 PMCID: PMC3140492 DOI: 10.1371/journal.pone.0022090] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2011] [Accepted: 06/14/2011] [Indexed: 01/02/2023] Open
Abstract
Alzheimer's disease (AD) and Creutzfeldt-Jakob disease (CJD) represent two distinct clinical entities belonging to a wider group, generically named as conformational disorders that share common pathophysiologic mechanisms. It is well-established that the APOE ε4 allele and homozygosity at polymorphic codon 129 in the PRNP gene are the major genetic risk factors for AD and human prion diseases, respectively. However, the roles of PRNP in AD, and APOE in CJD are controversial. In this work, we investigated for the first time, APOE and PRNP genotypes simultaneously in 474 AD and 175 sporadic CJD (sCJD) patients compared to a common control population of 335 subjects. Differences in genotype distribution between patients and control subjects were studied by logistic regression analysis using age and gender as covariates. The effect size of risk association and synergy factors were calculated using the logistic odds ratio estimates. Our data confirmed that the presence of APOE ε4 allele is associated with a higher risk of developing AD, while homozygosity at PRNP gene constitutes a risk for sCJD. Opposite, we found no association for PRNP with AD, nor for APOE with sCJD. Interestingly, when AD and sCJD patients were stratified according to their respective main risk genes (APOE for AD, and PRNP for sCJD), we found statistically significant associations for the other gene in those strata at higher previous risk. Synergy factor analysis showed a synergistic age-dependent interaction between APOE and PRNP in both AD (SF = 3.59, p = 0.027), and sCJD (SF = 7.26, p = 0.005). We propose that this statistical epistasis can partially explain divergent data from different association studies. Moreover, these results suggest that the genetic interaction between APOE and PRNP may have a biological correlate that is indicative of shared neurodegenerative pathways involved in AD and sCJD.
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Affiliation(s)
- Olga Calero
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Unidad de Encefalopatías Espongiformes, Centro Nacional de Microbiología, Instituto de Salud Carlos III (CNM-ISCIII), Madrid, Spain
| | - María J. Bullido
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
- Institute of Sanitary Research “Hospital la Paz” (IdIPaz), Madrid, Spain
| | - Jordi Clarimón
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Neurology Department, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Ana Frank-García
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Institute of Sanitary Research “Hospital la Paz” (IdIPaz), Madrid, Spain
- Neurology Service, Hospital Universitario La Paz (UAM), Madrid, Spain
| | - Pablo Martínez-Martín
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Alzheimer Disease Research Unit, CIEN Foundation, Carlos III Institute of Health, Alzheimer Center Reina Sofia Foundation, Madrid, Spain
| | - Alberto Lleó
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Neurology Department, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - María Jesús Rey
- Banco de Tejidos Neurológicos Universidad de Barcelona-Hospital Clínico, Barcelona, Spain
| | - Alberto Rábano
- Banco de Tejidos de la Fundación CIEN, CIEN Foundation, Carlos III Institute of Health, Alzheimer Center Reina Sofia Foundation, Madrid, Spain
| | - Rafael Blesa
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Neurology Department, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Teresa Gómez-Isla
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Neurology Department, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Fernando Valdivieso
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
- Institute of Sanitary Research “Hospital la Paz” (IdIPaz), Madrid, Spain
| | - Jesús de Pedro-Cuesta
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Área de Epidemiologia Aplicada, Centro Nacional de Epidemiología, Instituto de Salud Carlos III (CNM-ISCIII), Madrid, Spain
| | - Isidro Ferrer
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Institute of Neuropathology (INP), IDIBELL-Hospital Universitari de Bellvitge, Faculty of Medicine, University of Barcelona, 08907 Hospitalet de LLobregat, Barcelona, Spain
| | - Miguel Calero
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Unidad de Encefalopatías Espongiformes, Centro Nacional de Microbiología, Instituto de Salud Carlos III (CNM-ISCIII), Madrid, Spain
- * E-mail:
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