An observational study in Parkinson Disease, sponsored by Neuromed IRCCS. Completed at 1 site in Italy. Open to participants aged 30 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-03-23.
Sponsored by Neuromed IRCCS · Observational
microRNAs (miRNAs) regulate fundamental cell processes. Dysregulation of miRNA expression and function is reported in various diseases including cancer, metabolic disorders as well as neurological disorders. Circulating miRNAs have been proposed to mirror physiological and pathological conditions suggesting their use as biomarkers for various diseases. The study will focus on a case-control study cohort (N=1000) of subjects recruited at the IRCCS Neuromed for which a deep clinical characterization and genome-wide sequencing data are available. This study will enable to identify novel circulating biomarkers for Parkinson's disease (PD). Further, the project will give new insights on the involvement of miRNAs in the etiology of PD and in the understanding of the genetics of the disease thus opening avenues for novel therapeutic strategies.
Hypothesis and Significance:
The project intends to identify novel biomarkers for PD and clinical parameters related to the PD etiology. To do that circulating miRNA profiling through a next-generation sequencing will be performed using a single sample approach in the case-control study cohort and identified miRNAs will be validated by qRT-PCR and functional analyses. In addition, the project will contribute expanding the knowledge of the genetic architecture of PD taking advantage of genetic characterization of the study sample. miRNA genes and target genes will be used to prioritize genetic variants to be tested for association with PD to detect novel genes and functional variants that confer disease risk.
Specific Aim 1:
Profile of circulating miRNAs in the serum of PD patients and controls by next-generation sequencing in individual samples. Correlation between identified miRNAs and PD-related parameters and validation in independent cohorts
Specific Aim 2:
Bioinformatics prediction of target genes and miRNA functional validation
Specific Aim 3:
Identification of genes/genetic variants in miRNA pathways predisposing to PD
Expected outcomes:
The study will allow to discover novel circulating miRNAs as biomarkers for Parkinson's disease. As the deep phenotype characterization of the study sample, the project expects to find new associations of identified miRNAs with disease-related parameters and define the role of miRNAs in the physiological pathways in which those parameters are involved and in the etiology of PD. Also, the understanding of the genetics of the disease will open avenues for novel therapeutic strategies.
Collection of 1000 case-control study samples with a large phenotype and genotype characterization. The study includes 500 PD patients and 500 age/gender-matched controls. All PD patients have been diagnosed at the IRCCS Neuromed and followed-up (at least for 5 years) for disease progression. Data collected from patients and unrelated controls include: socio-demographic status, life style, anamnesis and family history, exposure to toxic chemical and/or environmental agents. Patients have been studied with a protocol comprising neurological examination (Stadio di Hoehn and Yahr, MDS-UPDRS part III, MOCA test) and evaluation of no motor symptoms. Information about drugs therapy have been also collected.
Inclusion Criteria for cases:
Exclusion Criteria for cases:
Exclusion Criteria for controls:
Personal or family history for neurodegenerative diseases
circulating miRNAs profiling by NGS analysis functional miRNA characterization association of miRNA levels with genetic variants
Identification of novel circulating miRNAs as biomarkers for Parkinson's disease
The study expects to discover novel circulating miRNAs as biomarkers for Parkinson's disease. As the deep phenotype characterization of the study sample, the project expects to identify new associations of identified miRNAs with disease-related parameters and define the role of miRNAs in the physiological pathways in which those parameters are involved and in the etiology of PD. Also, the understanding of the genetics of the disease will open avenues for novel therapeutic strategies
Time frame: 3 years
This study is completed, as verified in Mar 2023. You cannot join it, but the record below documents what was studied.
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Neuromed IRCCS