Related Experiment Video
Updated: May 16, 2025
Comprehensive Autopsy Program for Individuals with Multiple Sclerosis
Published on: July 19, 2019
PARP-1 gene promoter region may be associated with progression in multiple sclerosis
Busra Yilmaz1, Gunes Cakmak Genc1, Sevim Karakas Celik1
1Department of Medical Genetics, Zonguldak Bulent Ecevit University, Zonguldak, Turkey.
Abstract:
Multiple Sclerosis (MS) is a leading cause of disability among young adults. Most cases begin with relapsing-remitting MS (RRMS) and can transition to secondary progressive MS (SPMS) over time. It is known that the inflammatory status of the central nervous system changes during the progression of MS. Poly (ADP-ribose) polymerase-1 (PARP-1) is an enzyme involved in several cellular processes. Our study aimed to investigate the relationship between MS and the PARP-1 gene. We analyzed the PARP-1 gene's missense polymorphism rs1136410, promoter region polymorphism rs7527192, and 3'UTR polymorphism rs8679 in 123 MS patients and 168 healthy controls using the PCR-RFLP method. We examined genotype and allele frequency distributions among case-control groups and clinical subgroups. We observed that the CC genotype of rs7527192 polymorphism was increased in SPMS patients compared to controls. We also found that the CC genotype and C allele frequency were increased in the EDSS score > 3-6 group compared to healthy controls. The C allele frequency was increased in EDSS score > 3-6 compared to those with ≤ 3 and ≥ 6. When the results observed in our study are evaluated with the known effect of PARP-1 on the inflammasome pathway, we suggest that rs7527192 may be effective in the progression process through the activity of the PARP-1 inflammasome pathway.
Insights
This study links the PARP-1 gene
Area of Science:
- Neuroimmunology
- Genetics
- Molecular Biology
Background:
- Multiple Sclerosis (MS) is a primary cause of disability in young adults.
- MS often progresses from relapsing-remitting MS (RRMS) to secondary progressive MS (SPMS).
- Central nervous system inflammation changes during MS progression, involving enzymes like Poly (ADP-ribose) polymerase-1 (PARP-1).
Purpose of the Study:
- To investigate the association between the PARP-1 gene and Multiple Sclerosis.
- To analyze specific PARP-1 gene polymorphisms (rs1136410, rs7527192, rs8679) in MS patients and healthy controls.
Main Methods:
- PCR-RFLP method was used for genotyping.
- Analysis included genotype and allele frequencies in case-control and clinical subgroups.
- 123 MS patients and 168 healthy controls were recruited.
Main Results:
- The CC genotype of the rs7527192 polymorphism was more frequent in SPMS patients compared to controls.
- Increased CC genotype and C allele frequencies were observed in individuals with an Expanded Disability Status Scale (EDSS) score >3-6.
- C allele frequency was higher in the EDSS score >3-6 group compared to those with scores ≤3 and ≥6.
Conclusions:
- The rs7527192 polymorphism in the PARP-1 gene may play a role in MS progression.
- PARP-1's involvement in the inflammasome pathway might influence disease advancement.
- Further research could elucidate the specific mechanisms linking PARP-1 and MS pathogenesis.
