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Updated: Feb 21, 2026

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis
Published on: July 19, 2019
Klotho gene expression decreases in peripheral blood mononuclear cells (PBMCs) of patients with relapsing-remitting
Masoumeh Karami1, Farzad Mehrabi2, Abdolamir Allameh3
1Department of Biochemistry, School of Medicine, AJA University of Medical Sciences, Tehran, Iran.
Background:
we recently showed that a hypothesized anti-aging and anti-inflammatory protein, namely Klotho, may contribute to the etiology and/or pathogenesis of multiple sclerosis (MS). In addition, Klotho function and its gene expression are dependent on inflammatory pathways. Accordingly, the aim of this study was to investigate the Klotho gene expression within peripheral blood mononuclear cells (PBMCs) of patients with MS.
Methods:
Altogether, 30 patients with relapsing-remitting MS (RRMS) along with 30 age and sex-matched healthy individuals were enrolled in this study. Blood samples were obtained from all participants and then PBMCs were isolated. The quantitative Real-Time PCR was carried out for Klotho mRNA derived from PBMCs.
Results:
The results showed that klotho gene expression in the PBMCs of patients with RRMS is nearly 2.5-fold less than healthy individuals (P=0.0006).
Conclusion:
This is the first study demonstrating a possible role of Klotho in the PBMCs of MS patients.
Insights
Klotho gene expression is significantly reduced in peripheral blood mononuclear cells (PBMCs) of multiple sclerosis (MS) patients. This finding suggests Klotho may play a role in MS pathogenesis and warrants further investigation.
Area of Science:
- Neuroimmunology
- Molecular Biology
- Genetics
Background:
- Klotho, a protein with anti-aging and anti-inflammatory properties, is implicated in the etiology and pathogenesis of multiple sclerosis (MS).
- Klotho's function and gene expression are modulated by inflammatory pathways, suggesting a link to MS.
- Investigating Klotho gene expression in MS patients is crucial for understanding its role.
Purpose of the Study:
- To investigate the gene expression of Klotho in peripheral blood mononuclear cells (PBMCs) of patients diagnosed with multiple sclerosis (MS).
Main Methods:
- Quantitative Real-Time PCR was employed to measure Klotho mRNA levels.
- PBMCs were isolated from blood samples of 30 relapsing-remitting MS (RRMS) patients and 30 age/sex-matched healthy controls.
Main Results:
- Klotho gene expression in PBMCs of RRMS patients was approximately 2.5-fold lower compared to healthy individuals (P=0.0006).
Conclusions:
- This study provides the first evidence of a potential role for Klotho in the PBMCs of multiple sclerosis patients.
- The observed downregulation of Klotho in MS patients suggests its involvement in the disease process.
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