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Epigenetic and genetic investigation of SOCS-1 gene in patients with multiple myeloma

Blood Res. 2022 Oct 27. doi: 10.5045/br.2022.2022097. Online ahead of print.


BACKGROUND: The suppressor of cytokine signaling-1 (SOCS-1) functions to induce an appropriate immune response and is an essential physiological regulator of interferon signaling. DNA methylation involves adding a methyl group to the carbon 5 position of cytosine. Besides comparing SOCS-1 gene methylation status between patients with multiple myeloma (MM) and healthy controls, this study also aimed to demonstrate the effect of SOCS-1 gene distribution and the effect of methylation of SOCS-1 on progression-free survival (PFS) and overall survival (OS).

MATERIALS AND METHODS: This study included 120 patients diagnosed with MM between January 2018 and 2020 and 80 healthy individuals. The distribution of the SOCS-1 genotypes was statistically compared between MM patients and healthy controls. Additionally, the statistically significant effects of these genotypes on survival were examined.

RESULTS: The CA/CA genotype of SOCS-1 was significantly higher in healthy controls (P=0.001), while the Del/Del genotype was significantly higher in patients with MM (P=0.034). The percent methylated reference (PMR) value of the SOCS-1 gene was significantly higher in the healthy controls (median, 43.48; range, 2.76-247.75; P=0.001). Patients with a PMR value of ≥43.48 were 3.125 times more likely to develop progression than those with a PMR value of <43.48.

CONCLUSION: The effects of SOCS-1 polymorphisms on the pathogenesis of MM and SOCS-1 methylation will further shed light on the pathophysiology of MM.

PMID:36289192 | DOI:10.5045/br.2022.2022097

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