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[Deficient mRNA expression of specific protein 3 gene in peripheral blood mononuclear cells from patients with
Ai-yu Lin1, Qi-dong Yang, Shen-xing Murong
1Department of Neurology, the Affiliated First Hospital, Fujian Medical University, Fuzhou, Fujian, 350005 P. R. China. aiyulina@yahoo.com.cn
Objective:
To characterize the deficiency of the mRNA expression of specific protein (SP3) gene in peripheral blood mononuclear cells (PBMCs) from Chinese patients with multiple sclerosis (MS) and study its correlation with the disease phenotypes.
Methods:
Fifty-six patients with definite MS were collected and total RNA was extracted from their PBMCs. Specific primers corresponding to SP3 gene were designed and the mRNA expression of SP3 gene was detected by reverse transcriptase-PCR (RT-PCR) method. The deficiency of SP3 expression was compared among MS patients, irrelevant disease group and normal controls.
Results:
Of the 56 MS cases, 23 (41.1%) were SP3-deficient. In contrast, the frequency of SP3-deficiency in normal subjects and irrelevant disease controls was 8.6% (5/35) and 14.3% (4/27), respectively. The frequency of the SP3-expression deficiency in MS patients was significantly higher than that in both control groups (P< 0.01). Within the MS cases, the scores of expanded disability status scale (EDSS) in the SP3-expressing subjects were significantly different from that in the SP3-deficient ones in the stable, but not in the active, phase of MS (P< 0.05).
Conclusion:
Author's observation suggested that deficient expression of SP3 gene occurs in Chinese MS patients, and that the SP3 expression may correlate with the clinical manifestations of MS and play roles in its immunological pathogenesis.
Insights
Multiple sclerosis (MS) patients show significantly lower specific protein 3 (SP3) gene expression in peripheral blood mononuclear cells (PBMCs). This SP3 deficiency correlates with disease severity, suggesting a role in MS pathogenesis.
Area of Science:
- Neuroimmunology
- Molecular genetics
Context:
- Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system.
- Genetic factors are implicated in MS pathogenesis, but specific gene expression patterns in affected individuals require further elucidation.
- Peripheral blood mononuclear cells (PBMCs) offer a accessible source for studying molecular changes associated with MS.
Purpose:
- To investigate the mRNA expression levels of the specific protein 3 (SP3) gene in PBMCs from Chinese patients diagnosed with multiple sclerosis.
- To determine the frequency of SP3 gene expression deficiency in MS patients compared to healthy controls and patients with other diseases.
- To explore the association between SP3 gene expression status and clinical phenotypes, including disease activity and disability, in MS patients.
Summary:
- A study involving 56 Chinese MS patients found that 41.1% exhibited deficient SP3 gene mRNA expression in their PBMCs, a significantly higher rate than in healthy controls (8.6%) and other disease controls (14.3%).
- SP3 gene expression deficiency was found to be significantly more prevalent in MS patients compared to both control groups (P<0.01).
- Among MS patients, SP3-expressing individuals showed significantly different Expanded Disability Status Scale (EDSS) scores compared to SP3-deficient individuals during the stable phase of the disease (P<0.05), but not during the active phase.
Impact:
- The findings suggest that deficient SP3 gene expression is a characteristic molecular finding in Chinese MS patients.
- SP3 gene expression may play a role in the immunological pathogenesis of MS.
- The correlation between SP3 expression and clinical manifestations highlights its potential as a biomarker for disease progression or severity.
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