A functional haplotype of NFKB1 influence susceptibility to oral cancer: a population-based and in vitro study

Genetic Polymorphisms in NLRP3 Inflammasome-Associated Genes in Patients with B-Cell Non-Hodgkin's Lymphoma

Purpose

The role of NLRP3 inflammasome in the progression of many diseases has been increasingly recognized. However, the function of this molecular assembly in the development and progression of B-cell non-Hodgkin's lymphoma remains unclear.

Patients and Methods

In this study, we investigated the polymorphisms in the NLRP3 inflammasome associated genes in 281 patients with B-cell non-Hodgkin's lymphoma and 385 age- and gender-matched healthy controls.

Results

We found that IL-18 (rs1946518) and NFκB-94 ins/del (rs28362491) contributed to susceptibility to B-cell non-Hodgkin's lymphoma. Specifically, the allele "G" in IL-18 (rs1946518) and allele "ins" in NFκB-94 ins/del (rs28362491) were significantly associated with the risk of disease. The AA genotype of CARD8 (rs2043211) and the higher level of serum lactate dehydrogenase (LDH) led to statistically poorer B-cell non-Hodgkin's lymphoma survival. Less frequent genotype TT of CARD8 (rs2043211) was observed in patients with higher LDH level, clinical stages III-IV of disease, and IPI 3-5, although the relationship did not reach statistical significance. However, IPI is an independent prognostic factor for B-cell non-Hodgkin's lymphoma.

Conclusion

IL-18 (rs1946518) and NFκB-94 ins/del (rs28362491) gene polymorphisms appear to be the factors influencing the risk of B-cell non-Hodgkin's lymphoma. CARD8 (rs2043211) polymorphisms are important factors for the survival of patients with this disease.

NF-κB1 intronic region polymorphisms as risk factor for head and neck cancer in HPV-infected population from Pakistan

BACKGROUND

Head and neck cancer (HNC) developed due to the number of risk factors, including infection of Human Papillomavirus (HPV). The genetic predisposition also plays an important role in deregulating the NF-κB pathway, and certain polymorphisms are reported to affect the pathway genes.

OBJECTIVES

The present study was conducted for the detection of HPV and polymorphisms in the NF-κB1 gene of HNC patients in the Pakistani population.

METHODS

Genomic DNA from HNC tumors samples were extracted using the Exgene SV DNA extraction Kit. Allele-specific PCR and direct sequencing were done for analysis of NF-κB1 SNPs, 94ins/del (rs28362491), rs1598858, and rs4648068.

RESULTS

The genotypes AG (36.2%/ 12%) of rs1598858, and AG (28.3%/ 12%) and GG (28.3%/ 22%) of rs4648068 were associated with significantly (p≤0.05) increased risk of head and neck cancer in studied population. Furthermore, among the HNC cases, genotypes AGrs1598858 (p≤0.014) and GGrs4648068 (p≤0.001) had increased risk of HPV related cancers. Tobacco use (OR-3.158442; [1.140, 8.754]), lymph nodes involvement (OR 4.05128; [1.854, 8.852]), and poorly differentiated tumors (OR 1.997155; [0.940, 4.245]) were positively associated with HPV induced cancers.

CONCLUSION

It was the first comprehensive study from Pakistan, to evaluate the polymorphic variants of NF-κB1. Genotypes AGrs4648068, GGrs4648068, and AGrs1598858 of NF-κB1 gene are associated with increased risk of head and neck cancers in the Pakistani population. It can be concluded that HPV infection, lymph nodes and tobacco use can act synergetic to each other and add up in modulating HNC when present together with intronic SNPs of NF-κB1 gene.

Selenoprotein genetic variants may modify the association between serum selenium and oral cancer risk

OBJECTIVE

The relationship between selenium (Se) and oral cancer is still controversial, and the selenoprotein genes play crucial roles in selenium metabolism. We aim to investigate the potential effect of selenoprotein genes (including GPx and TXNRD) in the association of serum Se with oral cancer risk.

METHODS

A case-control study including 235 oral cancer cases and 406 controls from September 2011 to December 2018 was conducted in Fujian, China. The peripheral blood samples were obtained from each participant. Genotyping was performed by MassARRAY system, and serum Se levels were measured by inductively coupled plasma mass spectrometry (ICP-MS).

RESULTS

Compared with the lowest tertile of Se concentration, those with Se levels in the third tertile were associated with the lower risk of oral cancer (OR = 0.228; 95% CI: 0.135, 0.384). After additional adjustment for genetic risk score (GRS, derived from selenoprotein genetic variants), the model demonstrated the superior goodness of fit. When stratified by GRS, the negative correlation of serum Se was more pronounced among those with low risk (i.e., lower GRS). Moreover, there is a multiplicative interaction between serum Se and GRS for the risk of oral cancer (p = .001).

CONCLUSIONS

The present study suggests that serum Se levels may be significantly associated with oral cancer risk, yet the association may be modified by the effects of selenoprotein genetic variants.

Naringin Targets NFKB1 to Alleviate Oxygen-Glucose Deprivation/Reoxygenation-Induced Injury in PC12 Cells Via Modulating HIF-1α/AKT/mTOR-Signaling Pathway

This study was designed to investigate the effect of naringin in oxygen-glucose deprivation/reoxygenation (OGD/R) model and its mechanism. The target gene of naringin and the enriched pathways of the gene were searched and identified using bioinformatics analysis. Then OGD/R model was built using PC12 cells, after which the cells were treated with different concentrations of naringin. Subsequently, cell proliferation and apoptosis were evaluated by cell counting kit-8 (CCK-8) and flow cytometry assays, respectively. Meanwhile, the expression of NFKB1 in PC12 cells underwent OGD/R-induced injury was detected by qRT-PCR, while apoptosis-related and pathway-related proteins were checked by Western blot. DCF-DA kit was utilized to measure the level of ROS. Our results revealed that NFKB1, which was upregulated in MACO rats and OGD/R-treated PC12 cells, was a target gene of naringin. Naringin could alleviate OGD/R-induced injury via promoting the proliferation, and repressing the apoptosis of PC12 cells through regulating the expression of NFKB1 and apoptosis-associated proteins and ROS level. Besides, the depletion of NFKB1 was positive to cell proliferation but negative to cell apoptosis. Moreover, the depletion of NFKB1 enhanced the influences of naringin on cell proliferation and apoptosis as well as the expression of apoptosis-related proteins and ROS level. Western blotting indicated that both naringin treatment and depletion of NFKB1 could increase the expression of HIF-1α, p-AKT, and p-mTOR compared with OGD/R group. What's more, treatment by naringin and si-NFKB1 together could significantly increase these effects. Nevertheless, the expression of AKT and mTOR among each group was almost not changed. In conclusion, naringin could prevent the OGD/R-induced injury in PC12 cells in vitro by targeting NFKB1 and regulating HIF-1α/AKT/mTOR-signaling pathway, which might provide novel ideas for the therapy of cerebral ischemia-reperfusion (I/R) injury.

Genetic Association between NFKBIA and NFKB1 Gene Polymorphisms and the Susceptibility to Head and Neck Cancer: A Meta-Analysis

Background

The role of the NFKB1 gene rs28362491 polymorphism and NFKBIA gene rs2233406 polymorphism in the development of head and neck cancer (HNC) remains controversial. This meta-analysis was performed to assess the relationship between the gene polymorphisms and HNC quantitatively.

Methods

PubMed, Embase, Web of Science, WanFang Data, and China National Knowledge databases were used to search for eligible articles. The relationship was evaluated by STATA 11.0.

Results

Eight eligible articles were included in our study. Nine case-control studies from the eight included articles were correlated with rs28362491 polymorphism. Four articles were related to rs2233406 polymorphism. Overall, a significant correlation was observed between the rs28362491 polymorphism and a decreased risk of HNCs (OR = 0.76, 95%CI = 0.60‐0.97 for DD vs. II; OR = 0.80, 95%CI = 0.68‐0.95 for DD vs. DI+II). In subgroup analyses, the rs28362491 polymorphism was associated with the risk of nasopharyngeal carcinoma (NC), but not with oral cancer (OC). In addition, no statistical correlation was found between the polymorphism of rs2233406 and HNCs.

Conclusion

rs28362491 polymorphism was significantly associated with the risk of HNCs, especially with NC. Additionally, our results showed that no association was discovered between rs2233406 polymorphism and HNCs.

Gene Combination of CD44 rs187116, CD133 rs2240688, NF-κB1 rs28362491 and GSTM1 Deletion as a Potential Biomarker in Risk Prediction of Breast Cancer in Lower Northern Thailand

Background:

Biomarkers play an important role in oncology, including risk assessment, treatment prediction, and monitoring the progression of disease. In breast cancer, many genes are used as biomarkers. Since, several SNP variations of hallmark – related genes have been reported to be of value in risk prediction in various cancers and populations, some genetic polymorphism loci were combined and reported as biomarkers for use in the risk assessment of breast cancer in Thai people.

Methods:

Twelve cancer gene hallmarks (15 polymorphic loci) were selected and genotyped in 184 breast cancer patients and 176 healthy individuals in Phitsanulok, Thailand.

Results:

AA genotype of CD44 rs187116 (c.67+4883G>A), the C allele of CD133 rs2240688 (c.*667A>C), the *2 allele (4 bp deletion) of NF-κB1 rs28362491 and the homozygous null allele genotype of GSTM1 were significantly associated with an increased risk of breast cancer (p<0.05). A combination of these 4 significant loci showed that AA-AA-*1*1-homozygous null allele genotype has the greatest correlation with increased risk of breast cancer (OR = 21.00; 95% CI: 1.77 to 248.11; p = 0.015), followed by GA-AA-*2*2- homozygous null allele genotype (p = 0.037) and GG-AC-*1*2- homozygous null allele genotype (p = 0.028).

Conclusion:

These findings suggest that the polymorphisms of CD44 rs187116 (c.67+4883G>A), CD133 rs2240688 (c.*667A>C), NF-κB1 rs28362491 and GSTM1 homozygous null allele genotype might be associated with an increased risk of breast cancer, and this gene combination could possibly be used as biomarkers for risk prediction, which would be of benefit in planning health surveillance and cancer prevention.

NFKB1 gene rs28362491 polymorphism is associated with the susceptibility of acute coronary syndrome

The acute coronary syndrome (ACS) is a complex disease where genetic and environmental factors are involved. NF-κB, a central regulator of inflammation, is involved in various inflammatory diseases. The aim of the present study was to explore the association between NFKB1 gene rs28362491 (-94ATTGins/del) polymorphism and ACS. A total of 778 ACS patients and 1112 healthy subjects were included in our study. The TaqMan SNP genotyping assays was used to analyze the rs28362491 polymorphism. The lesion extent of coronary artery was assessed by Gensini Score and lesion vessel number in ACS patients. For total and males, the frequencies of the mutant DD genotype and D allele were significantly higher in ACS patients than that in control subjects (total: DD genotype: 18.0 vs 14.1%, P=0.009, D allele: 43.0 vs 37.9%, P=0.002, males: DD genotype: 20.6 vs 15.3%, P=0.042, D allele: 44.2 vs 38.8%, P=0.013). After multivariate logistic regression analysis, we found that individuals with mutant DD genotype had 1.329-fold higher risk of ACS compared with individuals with ID and II genotypes. Moreover, ACS patients with DD genotype were worse stenosis of coronary artery compared with patients carrying II or ID genotype. In conclusion, our study demonstrated that the mutant DD genotype of NFKB1 gene was associated with the risk and severity of ACS in Han population in Xinjiang, northwest of China.

Upregulated long noncoding RNA ENST00000470447.1 inhibits cell migration and invasion and predicts better disease-free survival of oral cancer

BACKGROUND

The aim of the present study was to assess the long noncoding RNA (lncRNA) expression profile of oral cancer and clarify the biological functions and clinical value of a novel lncRNA ENST00000470447.1.

METHOD

Microarray assay was used to explore lncRNA expression profiles in three paired oral cancer and adjacent normal tissue samples. The expression of targeted lncRNA (ENST00000545372.1, ENST00000470447.1, and ENST00000412353.1) was validated by quantitative real-time polymerase chain reaction. Then we evaluated the biological and clinical roles of ENST00000470447.1 in oral cancer by in vitro assays and multivariable Cox regression analysis.

RESULTS

LncRNAs were aberrantly expressed in oral cancer tissues. The expression levels of ENST00000470447.1 and ENST00000412353.1 in oral cancer tissues were significantly lower than those in matched adjacent noncancerous tissues (P < .001). in vitro assays indicated that overexpression of ENST00000470447.1 significantly inhibited the proliferation, migration, and invasion ability of Tca-8113 cells, whereas promoted the apoptosis of Tca-8113 cells. Furthermore, ENST00000470447.1 expression was significantly correlated with tumor differentiation (P = .030). Cox regression analyses demonstrated that high ENST00000470447.1 expression was associated with better disease-free survival for patients with oral cancer (hazard ratio: 0.25, 95% CI: 0.06-0.95; P = .041).

CONCLUSION

Our findings suggest that ENST00000470447.1 can be served as a potential novel marker for recurrence and metastasis prediction of patients with oral cancer, which may provide a potential therapeutic target for oral cancer.