WO2018129886A1 - 与原发性胆汁性胆管炎关联的白细胞介素16及其应用 - Google Patents
与原发性胆汁性胆管炎关联的白细胞介素16及其应用 Download PDFInfo
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- the present invention belongs to the field of immunology, and specifically relates to interleukin 16 (IL-16) associated with primary biliary cholangitis and its use.
- IL-16 interleukin 16
- PBC Primary biliary cholangitis
- AMA PBC-specific anti-mitochondrial antibodies
- the positive rate of AMA was found to be higher than 0.16% in middle-aged women. Medium is above 0.3% [5].
- a positive rate of AMA (PDC-E2) was found to be higher than 0.05% in 8126 adults (18-83 years old) in Guangdong, and higher than 0.15% in middle-aged women.
- a recent AMA screening of 19,012 residents in Shanghai found that 0.40% of men and 0.94% of women were positive for AMA, and 25 of them (0.13%) had PBC. With the aging of China's population, PBC will rapidly develop into a more common disease in China. It may reach 200,000 to 300,000 patients in 2025 and 35 to 500,000 patients by 2050.
- Ursodeoxycholic acid is the only drug that effectively controls early PBC patients (especially those with no jaundice), but there is no cure, and the only way to save patients with advanced PBC is Liver transplantation is performed. China is a country with high incidence of viral hepatitis.
- the clinical symptoms of PBC are similar to viral hepatitis.
- PBC patients are often misdiagnosed as viral hepatitis or drug-induced hepatitis in the early stage, which seriously affects the diagnosis and treatment of patients with PBC. Therefore, early diagnosis and treatment of PBC patients has important social significance.
- PBC has a strong genetic susceptibility, and the first-generation relatives of patients have a 100-fold higher incidence of PBC than the general population. According to reports from North America, Europe and Japan, the family incidence of PBC is 3.8-9%. In 2005, a large-scale survey in North America showed that the relative odds ratio of immediate family members of PBC patients was as high as 10.7. Analysis of identical twins in patients with PBC found a common incidence of 63%. In the past four years, our team has found three pairs of identical twin PBC patients in the survey of domestic PBC patients. The sister symptoms and onset time of the three pairs of patients are very close. Combined with international data, the identical pairs of PBC patients The common incidence rate of children 72.7%.
- GWAS genome-wide association analysis
- the North American PBC Cooperative Group which is a core member of the applicant, used GWAS and specific site high-density gene polymorphism analysis to conduct a cohort analysis of PBC patients and control populations in North America, confirming the genetic susceptibility of PBC and HLA-II antigens.
- IL12A, IL12RB2, STAT4, IRF5, ch17q12-21, MMEL1 and SPIB are closely related, and it is revealed that abnormalities in IL12 signaling pathway and Toll-like receptor (TLR)/TNF signaling pathway may lead to PBC .
- TLR Toll-like receptor
- the first technical problem to be solved by the present invention is to provide an application of IL-16 in the preparation of a product for detecting or assisting detection, screening or predicting primary biliary cholangitis.
- the second technical problem to be solved by the present invention is to provide a series of single nucleotide polymorphism sites (SNPs) which are significantly associated with primary biliary cholangitis, and to find out which is associated with primary biliary cholangitis. Susceptibility correlates with the most prominent representative sites, thereby providing the use of said single nucleotide polymorphic sites (SNPs) for assessing susceptibility to primary biliary cholangitis.
- SNPs single nucleotide polymorphism sites
- a third technical problem to be solved by the present invention is to provide an application of IL-16 in the preparation of an animal model of PBC.
- a fourth technical problem to be solved by the present invention is to provide an application of IL-16 in the preparation of a therapeutic drug for PBC.
- the technical solution adopted by the present invention is: in the first aspect, the application of IL-16 in preparing a product for detecting or assisting detection, screening or predicting primary biliary cholangitis is provided. .
- IL-16 was found to be abnormally high in the blood of PBC patients; specific genome-wide association analysis revealed that IL-16 gene polymorphism is closely related to the pathogenesis of PBC; serum of PBC patients and normal people Analysis and found that IL-16 is abnormally highly expressed in patients with PBC.
- the second aspect provides a series of single nucleotides of IL-16 that are significantly associated with susceptibility to primary biliary cholangitis.
- Polymorphism loci were analyzed by using the HumanOmniZhongHua-8 (v1.1) scan for genome-wide association data analysis and genetic polymorphism (SNP) by using 1122 Chinese Han nationality PBC patient samples and 4,036 normal human samples.
- the present invention finds a linkage relationship between a plurality of SNPs and rs11556218 by performing linkage disequilibrium analysis on SNPs at the IL16 site. Sequenom's iPlex method was used to verify the most significant difference in the rs11556218 polymorphism locus; using Impute2 and PLINK software, logistic regression principle, gender as a common variable, analysis by superposition effect model; also found significant Differences; all SNPs in Table 1 are genetic polymorphic loci that are significantly different between PBC and control and can be used for risk prediction of PBC.
- the present invention finds that the PBC-related locus polymorphism is significantly correlated with the expression of IL-16 in lymphocytes and monocytes by analyzing the existing gene expression analysis database in the world; using PLINK software, logic The regression principle was used to analyze the relationship between each SNP locus and primary biliary cholangitis, calculate the relative risk (ORd ratio, OR) of the risk allele and 95% confidence interval to obtain this series of SNPs.
- the risk alleles of the locus are: rs17875509 polymorphism site is C; rs11857713 polymorphism site is T; rs4778636 polymorphism site is A; rs11073001 polymorphism site is G; rs11630277 polymorphism site The point is A; the rs56859031 polymorphism is AGT; the rs57763246 polymorphism is T; the rs17875523 polymorphism is T; the rs3898677 polymorphism is C; the rs139879640 polymorphism is T; rs4577037
- the polymorphism site is G; the rs3899547 polymorphism site is G; the rs17875532 polymorphism site is T; the rs17875533 polymorphism site is A; the rs11556218 polymorphism site is G; the rs1803275 polymorphis
- the present invention measures the concentration of serum IL-16 in 120 PBC patients and 120 normal persons by quantitative immunosorbent assay (ELISA) for IL-16, and finds that IL-16 is in PBC patients. Significantly elevated (P ⁇ 0.0001).
- ELISA quantitative immunosorbent assay
- an animal model established in the present invention introduces chronic IL-16 expression to prepare a PBC animal model, and the model is used for screening of a PBC therapeutic drug.
- the present invention has the following features and advantages:
- the present invention firstly found that multiple polymorphisms of IL-16 are significantly associated with the occurrence of PBC, and can be used as one of the indicators for predicting the risk of PBC.
- IL-16 is abnormally elevated in the blood of PBC patients and is a target for PBC targeted therapy.
- FIG. 1 is a correlation diagram of a single nucleotide polymorphism site of an IL16 gene region and PBC determined in Example 1.
- the abscissa "Position on chr” is a position on a chromosome (unit: Mb);
- the coordinates are the P value of the single nucleotide polymorphism site associated with PBC (-log10 (p-value)), the right Recombination rate is the recombination rate, the unit (CM/Mb); the representative locus rs17875509 to ⁇ Said.
- Figure 2 is a comparison of the expression of IL-16 in the serum of PBC and normal control population (HC) by ELISA in Example 3 (**** is P ⁇ 0.0001); in Figure 2: the abscissa is divided into PBC and normal control.
- the HumanOmniZhongHua-8 (v1.1) analysis kit manufactured by Illumina Co., Ltd. includes a chip and a reagent.
- IL-16 quantitative enzyme-linked immunosorbent assay kit purchased from R&D Systems, Inc., Human IL-16 Quantikine ELISA Kit, product number D1600.
- Phosphate buffer 8 g NaCl, 0.2 g KCl, 0.24 g KH 2 PO 4 , 3.628 g Na 2 HPO 4 ⁇ 12H 2 O, double distilled water to 1 L;
- Tris-HCl buffer pH 8.0: 30.3g Tris base dissolved in 200ml of double distilled water, hydrochloric acid to adjust the pH to 8.0, to a volume of 250ml;
- nuclear lysis buffer (Nuclei Lysis Buffer, 500ml): 40ml 5M NaCl, 2ml 0.5M EDTA (pH 8.0), 5ml 1M Tris-HCl (pH 8.0), 453ml double distilled water;
- Proteinase K buffer (Proteinase K buffer, 100ml): 50ml glycerol, 100ul 1M Tris-HCl (pH 7.5), 200 ⁇ l 1M CaCl 2 , 47ml double distilled water;
- Proteinase K (Proteinase K Solution, 10mg / ml): 100mg proteinase K powder dissolved in 10ml proteinase K buffer;
- TE buffer 1ml 1M Tris-HCl buffer (pH 8.0), 0.2ml 0.5M EDTA (pH 8.0), double distilled water to 100ml;
- TAE buffer 242g Tris-base, 57.1ml glacial acetic acid, 200ml 0.5M EDTA (pH 8.0), double distilled water to 1L.
- the present invention discovers the association of the IL-16 gene locus with primary biliary cholangitis by the following methods and procedures.
- Non-anticoagulant therapy of patients and normal subjects was collected by non-anticoagulative collection tubes from various hospitals.
- the collection tube was centrifuged to separate serum and blood clots.
- the serum of the upper layer of the thawed blood sample was gently mixed with a pipette in a clean bench, and each was placed in four 1.5 ml screw cap storage tubes and stored at -80 °C.
- the HumanOmniZhongHua-8 (v1.1) chip was purchased from ILLUMINA, and the classification was carried out in accordance with the requirements of the product method. The exact steps are based on the experimental steps of the Illumina HumanOmniZhongHua-8 (v1.1) chip. The relevant description can be found in the published literature [Adler, AJ, Wiley, GB, Gaffney, PM Infinium Assay for Large-scale SNP Genotyping Applications .J.Vis.Exp. (81), e50683, doi: 10.3791/50683 (2013).]. Each DNA sample was treated at 200 nanograms (ng) in strict accordance with the experimental procedure described in the Illumina HumanOmniZhongHua-8 (v1.1) chip.
- the HumanOmniZhongHua-8 (v1.1) chip typing data was processed and output by the BeamadStudio software of ILLUMINA, and the associated data analysis was performed according to the published literature [Zuo, X. et al. Whole-exome SNP array identification 15new susceptibility loci for psoriasis .Nat Commun 6,6793,2015].
- the classification data output by BeadStudio is analyzed by PLINK, and the duplicate and affinity samples are excluded according to the pairwise identity-by-state. Using smartpca software, the heterogeneous samples were excluded according to the principle component analysis. The results of 1,122 PBC patients and 4,036 normal controls were used for statistical analysis.
- SNPs with a success rate of less than 98% exclude SNPs with a minimum allele frequency (MAF) of less than 0.01 in the analysis sample, and exclude Hardy–Weinberg equilibrium values of P ⁇ 1 ⁇ 10 -4 in normal control samples. SNP. After exclusion, a total of 776,516 autosomal SNPs were used for comparison.
- PLINK software SNP correlation analysis uses the principle of linear regression, using gender as the covariate, using the additive allelic effect, assessing the significance of each SNP locus associated with PBC, and calculating the dangerous alleles.
- the relative risk of the gene (Odds ratio, OR) and the 95% confidence interval, the OR value, confidence interval and P value were obtained directly in the analysis, thereby obtaining the dangerous allele of the site.
- the significance level (P value) associated with each PBC in the SNP chip was calculated by genome-wide association (GWAS) analysis, and the chromosomal region with potential association with PBC was found according to the significance level (P value less than 0.0001). And obtain a single nucleotide polymorphism site and its allele that are significantly associated with PBC susceptibility.
- the SNP calculation (Imputation) is based on the results of the Han people in the thousand human genome project (Reference), using IMPUTE2 software, combined with the results of 1,122PBC patients and 4,036 normal controls.
- Linkage disequilibrium (LD) between single nucleotide polymorphisms in a chromosomal region refers to a non-random combination of different single nucleotide polymorphism sites, represented by r 2 ( 0-1).
- the series of single nucleotide polymorphisms and their alleles are: rs17875509, the allele is G/C; rs11857713, the allele is C/T; rs4778636, the allele is G/A; rs11073001
- the allele is A/G; rs11630277, the allele is C/A; rs56859031, the allele is A/AGT; rs57763246, the allele is C/T; rs17875523, the allele is C/T; rs3898677
- the allele is T/C; rs139879640, the allele is TCTCA/T; rs4577037, the allele is T/G; rs3899547, and the allele is A/G; Rs17875532, allele is C/T; rs17875533, allele is C/A; rs11556218, allele is T/G;
- the risk alleles were: rs17875509 polymorphism site C; rs11857713 polymorphism site T; rs4778636 polymorphism site A; rs11073001 polymorphism site G; rs11630277 polymorphism site A; rs56859031 polymorphism site is AGT; rs57763246 polymorphism site is T; rs17875523 polymorphism site is T; rs3898677 polymorphism site is C; rs139879640 polymorphism site is T; rs4577037
- the morphological locus is G; the rs3899547 polymorphism is G; the rs17875532 polymorphism is T; the rs17875533 polymorphism is A; the rs11556218 polymorphism is G; the rs1803275 polymorphism is A; rs3926277 polymorphism
- IL-16 gene region single nucleotide polymorphism site sequence
- OR (95% CI) indicates the relative risk of developing PBC in individuals carrying disease-related haploids compared to individuals carrying normal haploids.
- the chromosomal location is referred to Human Genome GRCh37/hg19.
- PCR amplification primers and single base extension primers for the SNP site to be tested were designed using Sequenom Genothyping Tools and MassARRAY Assay Design software and synthesized by Integrated DNA Technologies.
- Primer 1 sequence ACGTTGGATGAGAACCTCATTGCCCTTCTG;
- Primer 2 sequence ACGTTGGATGTGGTTTGCTCAGGTTCACAG;
- PCR amplification was performed using a multiplex PCR technique in a 384-well plate with a total volume of 5 ⁇ l per reaction system.
- a PCR master mix solution was prepared in a new 1.5 ml EP tube.
- the 384-well plate is a PCR reaction plate.
- the 384-well plate of the prepared DNA sample was taken out, and the volume of the sample was adjusted to 1 ⁇ L using a 24-channel sampler.
- Each 5 ⁇ l PCR reaction system contained 20-50 ng of template DNA, Hotstar Taq 0.5 U, and 0.5 pmol of each amplification primer. 0.1 ⁇ l of 25 mM dNTPs.
- the PCR reaction conditions were set on a 384-well compatible PCR machine: 94 ° C for 4 minutes; 94 ° C for 20 seconds, 56 ° C for 30 seconds, 72 ° C for 1 minute, 45 cycles; 72 ° C for 3 minutes; 4 ° C retention.
- a 384-well PCR reaction plate was placed on a PCR machine to initiate a PCR reaction.
- the PCR product was treated with SAP (shrimp alkaline phosphatase) to remove free dNTPs from the system.
- the single base extension reaction system contained 7 ⁇ l of the SAP-treated PCR product and 2 ⁇ l of the EXTEND Mix solution (wherein each of the extension reaction primer mixtures was 0.94 ⁇ l, the iPLEX enzyme was 0.041 ⁇ l, and the extension mixture was 0.2 ⁇ l).
- the PCR machine was started to perform a single base extension reaction.
- MassARRAY Nanodispenser RS1000 spotter was started and the resin extended extension was transferred to a 384 well SpectroCHIP chip.
- the spotted SpectroCHIP chip was analyzed using MALDI-TOF (matrix-assisted laser desorption/ionization–time of fligh), and the results were classified using TYPER 4.0 software (sequenom) and the results were output. . A total of 907 PBC samples and 2127 control samples gave valid results.
- the results of 907 PBC samples and 2127 control samples were statistically analyzed by gender as the common variable.
- the disease-related haploid (G) frequency of rs11556218 was significantly higher in the PBC (0.2326) than in the control population (0.1885), the p-value was 7.0 ⁇ 10 -4 , and the GWAS results of rs11556218 in 1,122 PBC patients and 4,036 normal controls,
- the results of rs11556218 in 907 PBC samples and 2127 control samples were analyzed by superposition analysis using the principle of fixed-effect model (I2 ⁇ 25%).
- the statistical analysis included 2029 PBC samples and 6163 control samples.
- Table 3 Results of IL-16 polymorphic locus rs11556218 in genome-wide association analysis and validation findings
- the IL-16 quantitative enzyme-linked immunosorbent assay was purchased from R&D Systems, Inc., Human IL-16 Quantikine ELISA Kit, product number D1600. Two microliters of serum was used according to the procedure of the kit.
- test sample was quantified by preparing a standard curve according to the standards provided in the kit.
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Claims (27)
- IL-16在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用。
- IL-16基因多态位点rs17875509的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs17875509序列如序列表中的SEQ ID NO.1所示,其中,单核苷酸n为C的携带者原发性胆汁性胆管炎的风险高于等位基因G。
- IL-16基因多态位点rs11857713的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs11857713序列如序列表中的SEQ ID NO.2所示,其中,单核苷酸n为T的携带者原发性胆汁性胆管炎的风险高于等位基因C。
- IL-16基因多态位点rs4778636的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs4778636序列如序列表中的SEQ ID NO.3所示,其中,单核苷酸n为A的携带者原发性胆汁性胆管炎的风险高于等位基因G。
- IL-16基因多态位点rs11073001的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs11073001序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为G的携带者原发性胆汁性胆管炎的风险高于等位基因A。
- IL-16基因多态位点rs11630277的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs11630277序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为T的携带者原发性胆汁性胆管炎的风险高于等位基因C。
- IL-16基因多态位点rs56859031的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs56859031序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为AGT的携带者原发性胆汁性胆管炎的风险高于等位基因A。
- IL-16基因多态位点rs57763246的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs57763246序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为T的携带者原发性胆汁性胆管炎的风险高于等位基因C。
- IL-16基因多态位点rs17875523的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs17875523序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为T的携带者原发性胆汁性胆管炎的风险高于等位基因C。
- IL-16基因多态位点rs3898677的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs3898677序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为C的携带者原发性胆汁性胆管炎的风险高于等位基因T。
- IL-16基因多态位点rs139879640的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs139879640序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为T的携带者原发性胆汁性胆管炎的风险高于等位基因TCTCA。
- IL-16基因多态位点rs4577037的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs4577037序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为G的携带者原发性胆汁性胆管炎的风险高于等位基因T。
- IL-16基因多态位点rs3899547的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs3899547序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为G的携带者原发性胆汁性胆管炎的风险高于等位基因A。
- IL-16基因多态位点rs17875532的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs17875532序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为T的携带者原发性胆汁性胆管炎的风险高于等位基因C。
- IL-16基因多态位点rs17875533的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs17875533序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为A的携带者原发性胆汁性胆管炎的风险高于等位基因C。
- IL-16基因多态位点rs11556218的试剂在制备检测或辅助检测、筛查或预测 原发性胆汁性胆管炎的产品中的应用,rs11556218序列如序列表中的SEQ ID NO.5所示,其中,单核苷酸n为G的携带者原发性胆汁性胆管炎的风险高于等位基因T。
- IL-16基因多态位点rs1803275的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs1803275序列如序列表中的SEQ ID NO.6所示,其中,单核苷酸n为A的携带者原发性胆汁性胆管炎的风险高于等位基因G。
- IL-16基因多态位点rs3926277的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs3926277序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为A的携带者原发性胆汁性胆管炎的风险高于等位基因C。
- IL-16基因多态位点rs3926278的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs3926278序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为G的携带者原发性胆汁性胆管炎的风险高于等位基因C。
- IL-16基因多态位点rs3926279的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs3926279序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为G的携带者原发性胆汁性胆管炎的风险高于等位基因A。
- IL-16基因多态位点rs17875542的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs17875542序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为C的携带者原发性胆汁性胆管炎的风险高于等位基因G。
- IL-16基因多态位点rs17875543的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs17875543序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为T的携带者原发性胆汁性胆管炎的风险高于等位基因C。
- IL-16基因多态位点rs7166271的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs7166271序列如序列表中的SEQ ID NO.4所示,其中,单核苷酸n为T的携带者原发性胆汁性胆管炎的风险高于等位基因C。
- IL-16基因多态位点rs11325的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs11325序列如序列表中的SEQ ID NO.7所示,其中,单核苷酸n为T的携带者原发性胆汁性胆管炎的风险高于等位基因G。
- IL-16基因多态位点rs4778640的试剂在制备检测或辅助检测、筛查或预测原发性胆汁性胆管炎的产品中的应用,rs4778640序列如序列表中的SEQ ID NO.8所示,其中,单核苷酸n为G的携带者原发性胆汁性胆管炎的风险高于等位基因A。
- IL-16在制备PBC动物模型中的应用。
- IL-16在制备PBC治疗药物方面的应用。
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