Background:
Cytokines are polypeptides that play critical roles in immune responses. Gene polymorphisms
occurring in the inflammatory cytokines are taking role in autoimmune diseases, including multiple sclerosis (MS), which may
induce inappropriate immune responses.
Objective:
The aim of this study was to investigate the allelic and genotypic frequencies of interferon gamma gene (IFN-γ) at
+874A/T locus and tumor necrosis factor (TNF-α) at+308A/G locus in MS patients of Azeri population.
Methods:
At first, a questionnaire was prepared for each of 240 healthy, non-relative, and 152 Azeri MS patients before
obtaining the blood sample from all subjects. After DNA extraction, the frequency of alleles and genotypes of the IFN-γ and
TNF-α genes at +874A/T and -308G/A loci, respectively, were determined by allele-specific PCR method. Finally, the
frequencies were compared between control and MS patients by chi-square test (x2
-test) and p<0.05 was considered significant.
Results:
In the IFN-γ +874A/T gene single nucleotide polymorphism (SNP), the most allelic and genotypic frequencies in MS
patients were the A allele, 55.26% (p=0.04) and the AT genotype, 52.63% (p=0.048). In healthy individuals, it was 65.42% for
the A allele and 45.42% for the AA genotype. For the TNF-α 308 G/A SNP, the highest allelic and genotypic frequencies in
MS patients were the G allele with 55.92% (p<0.001) and AG genotype with 61.84%, and in healthy subjects, the allelic and
genotypic frequencies were 84.2% and 70.8% for the G allele and GG genotype, respectively.
Conclusion:
Head trauma, the infection with herpes virus and Mycoplasma pneumonia, frequent colds and high consumption of
canned foods provide grounds for MS. The T allele in the IFN-γ gene (+874) and the genotypes of AA and AG at the TNF-α
gene (-308) at the position-308 were considered as potential risk factors for MS. Therefore, the polymorphisms in cytokine
genes and following changes in their expression levels can be effective in susceptibility to MS.
:
Ferroptosis is a non-apoptotic mode of Regulated Cell Death (RCD) driven by excessive accumulation of toxic lipid peroxides and iron overload. Ferroptosis could be triggered by inhibiting the antioxidant defense system and accumulating iron-dependent Reactive Oxygen Species (ROS) that react with polyunsaturated fatty acids in abundance. Emerging evidence over the past few years has revealed that ferroptosis is of great potential in inhibiting growth and metastasis and overcoming tumor cell resistance. Thus, targeting this form of cell death could be perceived as a potentially burgeoning approach in cancer treatment. This review briefly presents the underlying mechanisms of ferroptosis and further aims to discuss various types of existing drugs and natural compounds that could be potentially repurposed for targeting ferroptosis in tumor cells. This, in turn, will provide critical perspectives on future studies concerning ferroptosis-based cancer therapy.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.