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Circulating concentration of interleukin-37 in Helicobacter pylori-infected patients with peptic ulcer: Its association with IL-37 related gene polymorphisms and bacterial virulence factor CagA
Cytokine ( IF 3.7 ) Pub Date : 2020-02-01 , DOI: 10.1016/j.cyto.2019.154928
Elham Davarpanah 1 , Abdollah Jafarzadeh 2 , Maryam Nemati 3 , Arezoo Bassagh 1 , Mehdi Hayatbakhsh Abasi 4 , Arezu Khosravimashizi 1 , Nadia Kazemipoor 5 , Motahareh Ghazizadeh 6 , Moghaddameh Mirzaee 7
Affiliation  

The immunopathologic responses play a major role in the development of H. pylori (HP)-related gastrointestinal diseases. IL-37 is an anti-inflammatory cytokine with potent suppressive effects on innate and adaptive immune responses. Here, we investigated the IL-37 levels and two single nucleotide polymorphisms (SNPs) including rs3811047 and rs2723176 in IL-37 gene in HP-infected peptic ulcer (PU) patients to identify any relationship. Three groups, including 100 HP-infected PU patients, 100 HP-infected asymptomatic (AS) subjects and 100 non-infected healthy control (NHC) subjects were enrolled to study. Serum IL-37 levels and the genotyping at rs3811047 and rs2723176 were determined using ELISA and SSP-PCR methods, respectively. Significantly higher IL-37 levels were observed in PU patients compared with AS and NHC groups (P < 0.0001). In both PU and AS groups, the CagA+ HP-infected participants displayed higher IL-37 levels compared with those infected with CagA- strains (P < 0.0001). There were significant differences between PU, AS and NHC groups regarding the distribution of genotypes and alleles at rs3811047 and rs2723176 SNPs. The genotype GG and allele G at IL-37 rs3811047 SNP, and the genotype CC and allele C at IL-37 rs2723176 SNP more frequently expressed in PU patients than total healthy subjects (AS + NHC groups) and were associated with an increased risk of PU development (genotype GG: RR = 3.08, P < 0.009; allele G: RR = 2.94, P < 0.01; genotype CC: RR = 5, P < 0.01; and allele C: RR = 5.0, P < 0.02, respectively). The PU patients with allele A at IL-37 rs2723176 SNP expressed higher amounts of IL-37 compared with patients carried allele C at the same position (P < 0.05). In AS carriers and NHC individuals, the IL-37 levels in subjects carried genotype AA or allele A at IL-37 rs2723176 SNP were higher than those carried genotype CC or allele C at the same location (P < 0.01 and P < 0.02 for AS group; P < 0.0001 and P < 0.001 for NHC subjects, respectively). The increased IL-37 levels may be considered as a valuable marker of PU development in HP-infected individuals. The SNPs rs3811047 and rs2723176 were associated with PU development. The CagA status of HP and IL-37 rs2723176 SNP may affect the IL-37 levels.

中文翻译:

幽门螺杆菌感染消化性溃疡患者IL-37循环浓度与IL-37相关基因多态性和细菌毒力因子CagA的关系

免疫病理反应在 H. pylori (HP) 相关胃肠道疾病的发展中起主要作用。IL-37 是一种抗炎细胞因子,对先天性和适应性免疫反应具有有效的抑制作用。在这里,我们研究了 IL-37 水平和两个单核苷酸多态性 (SNP),包括 HP 感染的消化性溃疡 (PU) 患者的 IL-37 基因中的 rs3811047 和 rs2723176,以确定任何关系。三组,包括100名HP感染的PU患者,100名HP感染的无症状(AS)受试者和100名未感染的健康对照(NHC)受试者被纳入研究。分别使用 ELISA 和 SSP-PCR 方法确定血清 IL-37 水平和 rs3811047 和 rs2723176 的基因分型。与 AS 和 NHC 组相比,在 PU 患者中观察到显着更高的 IL-37 水平(P < 0.0001)。在 PU 和 AS 组中,与感染 CagA- 菌株的参与者相比,感染 CagA+ HP 的参与者显示出更高的 IL-37 水平(P < 0.0001)。在 rs3811047 和 rs2723176 SNP 的基因型和等位基因分布方面,PU、AS 和 NHC 组之间存在显着差异。与总体健康受试者(AS + NHC 组)相比,IL-37 rs3811047 SNP 处的基因型 GG 和等位基因 G,以及 IL-37 rs2723176 SNP 处的基因型 CC 和等位基因 C 在 PU 患者中的表达频率高于总体健康受试者(AS + NHC 组),并且与增加的风险相关PU 发育(基因型 GG:RR = 3.08,P < 0.009;等位基因 G:RR = 2.94,P < 0.01;基因型 CC:RR = 5,P < 0.01;和等位基因 C:RR = 5.0,P < 0.02,分别) . 与在相同位置携带等位基因 C 的患者相比,在 IL-37 rs2723176 SNP 处具有等位基因 A 的 PU 患者表达更高量的 IL-37(P < 0.05)。在AS携带者和NHC个体中,IL-37 rs2723176 SNP携带基因型AA或等位基因A的受试者的IL-37水平高于携带基因型CC或等位基因C的受试者(AS的P < 0.01和P < 0.02)组;对于 NHC 受试者,分别为 P < 0.0001 和 P < 0.001)。增加的 IL-37 水平可能被认为是 HP 感染个体 PU 发展的一个有价值的标志。SNP rs3811047 和 rs2723176 与 PU 发展相关。HP 和 IL-37 rs2723176 SNP 的 CagA 状态可能会影响 IL-37 水平。IL-37 rs2723176 SNP携带基因型AA或等位基因A的受试者的IL-37水平高于携带基因型CC或等位基因C的受试者(AS组P < 0.01和P < 0.02;P < 0.0001和P对于 NHC 受试者,< 0.001,分别)。增加的 IL-37 水平可能被认为是 HP 感染个体 PU 发展的一个有价值的标志。SNP rs3811047 和 rs2723176 与 PU 发展相关。HP 和 IL-37 rs2723176 SNP 的 CagA 状态可能会影响 IL-37 水平。IL-37 rs2723176 SNP携带基因型AA或等位基因A的受试者的IL-37水平高于携带基因型CC或等位基因C的受试者(AS组P < 0.01和P < 0.02;P < 0.0001和P对于 NHC 受试者,< 0.001,分别)。增加的 IL-37 水平可能被认为是 HP 感染个体 PU 发展的一个有价值的标志。SNP rs3811047 和 rs2723176 与 PU 发展相关。HP 和 IL-37 rs2723176 SNP 的 CagA 状态可能会影响 IL-37 水平。SNP rs3811047 和 rs2723176 与 PU 发展相关。HP 和 IL-37 rs2723176 SNP 的 CagA 状态可能会影响 IL-37 水平。SNP rs3811047 和 rs2723176 与 PU 发展相关。HP 和 IL-37 rs2723176 SNP 的 CagA 状态可能会影响 IL-37 水平。
更新日期:2020-02-01
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