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Gore EJ, Gard L, Niesters HGM, Van Leer Buter CC. Understanding torquetenovirus (TTV) as an immune marker. Front Med (Lausanne) 2023; 10:1168400. [PMID: 37384041 PMCID: PMC10296770 DOI: 10.3389/fmed.2023.1168400] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 05/02/2023] [Indexed: 06/30/2023] Open
Abstract
Torquetenovirus (TTV), a small, single stranded anellovirus, is currently being explored as a marker of immunocompetence in patients with immunological impairment and inflammatory disorders. TTV has an extremely high prevalence and is regarded as a part of the human virome, the replication of which is controlled by a functioning immune system. The viral load of TTV in plasma of individuals is thought to reflect the degree of immunosuppression. Measuring and quantifying this viral load is especially promising in organ transplantation, as many studies have shown a strong correlation between high TTV loads and increased risk of infection on one side, and low TTV loads and an increased risk of rejection on the other side. As clinical studies are underway, investigating if TTV viral load measurement is superior for gauging antirejection therapy compared to medication-levels, some aspects nevertheless have to be considered. In contrast with medication levels, TTV loads have to be interpreted bearing in mind that viruses have properties including transmission, tropism, genotypes and mutations. This narrative review describes the potential pitfalls of TTV measurement in the follow-up of solid organ transplant recipients and addresses the questions which remain to be answered.
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Prevalence of exposure to pharmacogenetic drugs by the Saudis treated at the health care centers of the Ministry of National Guard. Saudi Pharm J 2022; 30:1181-1192. [PMID: 36164570 PMCID: PMC9508627 DOI: 10.1016/j.jsps.2022.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 06/17/2022] [Indexed: 12/02/2022] Open
Abstract
Background The drugs impacted by genetic variants are known as pharmacogenetic (PGx) drugs. Patients’ responses to these drugs may vary according to the variability in patients’ genetic makeup. Hence, exploring the pharmacogenes that affect drug treatment is vital to ensure optimal therapy and patients’ safety. This study aimed to describe the usage rate of PGx drugs and the frequency of relevant variants in the Saudi population. Methodology Prescription patterns over seven years (2015–2021) for Saudi patients on PGx drugs treated at the Ministry of National Guard-Health Affairs (MNG-HA) were investigated. Only registered drugs in the MNG-HA formulary (n = 78) were included. The patients were subgrouped into four age groups: ≤24, 25–44, 45–64, and ≥65 years. Further subgrouping was made according to gender and drugs’ therapeutic categories following anatomical therapeutic chemical (ATC) classification. Furthermore, an online searching was carried out to identify the pharmacogenes reported in the literature among healthy Saudis. The search included 45 genes that may affect drug outcomes based on evidence rated by either CPIC (A-B levels) or PharmGKB (1–2 levels). Results The screened patients were 1,483,905. Patients on PGx drugs accounted for 46.7% (n = 693,077 patients). The analgesic group was the most prescribed drug category (47%), which included ibuprofen (20.5%), celecoxib (6.3%), tramadol (5.8%), and others. Cardiovascular agents were the second-most utilized drug class (24.4%). Omeprazole was the second most commonly used medication (11.1%) but ranked third as a class (gastroenterology). Females used PGx drugs more frequently than males (53.5% versus 46.5%) and a higher usage rate by patients aged 45–64 years (31.3%) was noted. The cytochrome P450 genes (CYP2C9, CYP2C19, and CYP2D6) were estimated to impact responses of 54.3% (n = 1,156,113) of the used drugs (27.2% are possibly affected by CYP2C9, 12.8% by CYP2C19, and 14.3% by CYP2D6). Thirty-five pharmacogenes that characterize Saudi population and their variants’ allele frequencies were identified from previous reports. This study presents the largest reported number of genes that may affect drug therapies among Saudis. Conclusion This study confirmed that a high percentage of Saudi patients use PGx drugs and various genotypes of certain pharmacogenes are inherited by the Saudi population.
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Hajizadeh L, Samaei NM, Bazgir A, Agha Gholizadeh M, Khosravi A. Association of Interleukin-28B Polymorphisms (rs12979860 C/T, rs12980275 A/G, rs8099917 T/G) and Risk of Hepatocellular Carcinoma in an Iranian Population. Middle East J Dig Dis 2022; 14:118-123. [PMID: 36619736 PMCID: PMC9489329 DOI: 10.34172/mejdd.2022.264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 04/18/2021] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND: Hepatocellular carcinoma (HCC) is the fifth most common cancer in the world. The association of interleukin 28B (IL-28B) polymorphisms and HCC has been investigated in several populations. However, the findings are controversial. This study aimed to address the association between IL-28B polymorphisms (rs 8099917 T/G, rs12979860 C/T, rs12980275 A/G) and the risk of HCC in an Iranian population. METHODS: We have evaluated the association between IL-28B polymorphisms (rs 8099917 T/G, rs12979860 C/T, rs12980275 A/G) and HCC in 180 Iranian individuals (60 patients with HCC and 120 healthy matched controls) using polymerase chain reaction-restriction fragment length polymorphisms (PCR-RFLP) method. Single nucleotide polymorphism (SNP) association analysis and also haplotypes were estimated using the SNPstats online software. RESULTS: There was no significant association between these three polymorphisms of IL-28B and HCC (P>0.05). Moreover, haplotype analysis showed no significant association between the haplotypes and HCC. CONCLUSION: There was no association between IL-28B polymorphisms and HCC in an Iranian population.
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Affiliation(s)
- Leila Hajizadeh
- Cellular and Molecular Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Nader Mansour Samaei
- Cellular and Molecular Research Center, Golestan University of Medical Sciences, Gorgan, Iran,Corresponding Author: Nader Mansour Samaei, MD, PhD Human Genetics Cellular and Molecular Research Center, Golestan University of Medical Sciences, Gorgan, Iran Telefax:+98 1732430563 ,
| | - Afsaneh Bazgir
- Cellular and Molecular Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Mehdi Agha Gholizadeh
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Ayoob Khosravi
- Cellular and Molecular Research Center, Golestan University of Medical Sciences, Gorgan, Iran
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El-Fattah MA. Predictive power of Interleukin-28B gene variants for outcome of Hepatitis C Virus genotype 4 in Egyptians: A systematic review and meta-analysis. Clin Res Hepatol Gastroenterol 2021; 45:101480. [PMID: 32622719 DOI: 10.1016/j.clinre.2020.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 05/09/2020] [Accepted: 06/01/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND An advanced liver fibrosis did not abolish an Egyptian ethnicity as a favourable predictor for hepatitis C genotype 4 (HCV-GT4) outcome, that raises genetic issues. PATIENTS AND METHODS Multiple databases were searched from inception up to 1 April, 2020 for all studies included Egyptians, whose were genotyped for Interleukin-28B (IL-B28) in the setting of HCV. The pooled odds ratios (ORs) were based on a fixed or random effect model as appropriate. RESULTS In total, 33 studies included 5,538 Egyptians from 9 governorates. Of these, 4088 patients had chronic HCV-GT4, 373 resolvers (spontaneously cleared the virus), and 1077 non-infected subjects. The pooled prevalence of CC and CT/TT rs12979860 genotypes among chronic HCV-GT4 were 32%, and 68%, respectively. The pooled sustained virologic response (SVR) was achieved in 54% of 2,622 patients received Pegylated-interferon and Ribavirin. Compared with chronic HCV-infected patients, the favorable CC genotype was over-represented in the healthy subjects (30% vs. 45%), and HCV resolvers (28% vs. 59%). The CC genotype carriers were two-times more likely to resist HCV infection (vs. CT/TT OR=1.93, P<0.001), three-times (OR=3.31, P<0.001) to clear the virus spontaneously, and six-times to achieve interferon-induced SVR (ORcorrected=6.03; P<0.001). The rs8099917 TT carriers were associated with a higher rate of SVR (vs. wild GT/GG, 74% vs. 38%), with 3-fold probability achieving SVR (ORcorrected=3.42, P<0.001). CONCLUSIONS Polymorphisms near the IL-28B gene protect against infection and persistence of HCV, and predict SVR.
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Affiliation(s)
- Mohamed Abd El-Fattah
- Department of Internal Medicine, Faculty of Medicine, Suez Canal University, Ring Road, Ismailia City, Ismailia 41522, Egypt.
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Singh H, Nambiar N, Samani D, Gangakhedkar RR. Occurrence of Interleukin-2 (330 G/T) Promoter Polymorphism in ARV associated hepatotoxicity. Curr Mol Med 2020; 19:206-215. [PMID: 30973108 DOI: 10.2174/1566524019666190411093451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 04/10/2019] [Accepted: 04/10/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND IL-2 cytokine is involved in HIV replication and is also known to cause hepatic injury. Polymorphisms in the IL-2 gene are associated with altered interleukin-2 production. METHODS Hence, we assessed the prevalence of IL-2-303G/T polymorphism in 165 HIV patients (34 with and 131without hepatotoxicity) and 155 healthy controls using the PCR-RFLP method. RESULTS In patients with hepatotoxicity, IL-2-303GT, -303GT+TT genotypes were less prevalent as compared to without hepatotoxicity and healthy controls (29.4% vs. 42.7%, 58.8% vs. 69.5%; 29.4% vs. 40.6%, 58.8% vs. 66.5%, respectively). In patients with hepatotoxicity using tobacco and alcohol, IL-2-303GT,-303TT genotypes were distributed higher as compared to non-users (42.9% vs. 25.9%, OR=8.52, 42.9% vs. 25.9%, OR=9.09, and 28.6% vs. 29.6%, OR=1.63, 42.9% vs. 25.9%, OR=2.93), while IL-2-303TT genotype occurred more often in HIV patients consuming alcohol (34.1% vs. 23.0%). Nevirapine users with hepatotoxicity overrepresented the IL-2-303GT,-303TT genotypes as compared to efavirenz (34.8% vs. 18.2%, OR=4.64, 34.8% vs. 18.2%, OR=3.88). Among nevirapine users, IL-2-303GT genotype was associated with susceptibility to the acquisition of hepatotoxicity with borderline significance (OR=4.24, P=0.06). HIV patients using nevirapine majorly represented the IL-2-303TT genotype (26.9% vs. 25.0%, OR=2.35) while HIV patients with nevirapine + alcohol usage presented the IL-2 -330TT genotype at a higher frequency (34.2%% vs. 23.5%, OR=1.51). In patients with hepatotoxicity using nevirapine + alcohol, the genotype IL-2 - 330TT was predominant (60.0% vs. 27.8%, OR=3.16). CONCLUSION Thus, IL-2-303G/T polymorphism did not confer the susceptibility to ARV associated hepatotoxicity. However, IL-2-303G/T polymorphism with nevirapine usage may facilitate the risk for acquisition of ARV associated hepatotoxicity.
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Affiliation(s)
- HariOm Singh
- Department of Molecular Biology, National AIDS Research Institute Pune- 411026, India
| | - Nayana Nambiar
- Department of Molecular Biology, National AIDS Research Institute Pune- 411026, India
| | - Dharmesh Samani
- Department of Molecular Biology, National AIDS Research Institute Pune- 411026, India
| | - Raman R Gangakhedkar
- Department of Clinical Sciences, National AIDS Research Institute Pune- 411026, India
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Alkharsah KR, Alzahrani AJ, Obeid OE, Aljindan RY, Guella A, Al-Ali AK, Al-Turaifi HR, Sallam TA. Association between Hepatitis C Virus Viremia and the rs12979860, rs2228145 and rs1800795 SNP (CT/AC/GG) Genotype in Saudi Kidney Transplant Recipients. SAUDI JOURNAL OF MEDICINE & MEDICAL SCIENCES 2020; 8:46-52. [PMID: 31929778 PMCID: PMC6945315 DOI: 10.4103/sjmms.sjmms_175_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 11/01/2018] [Accepted: 12/25/2018] [Indexed: 02/06/2023]
Abstract
Background: Hepatitis C virus (HCV) is a major health problem, particularly in high-risk groups such as kidney transplant recipients, where it can adversely affect graft survival and increase the relative risk for mortality. Recently, the role of genetic variation among HCV patients in determining the outcome of infections has been under investigation. Objective: To investigate the association of single-nucleotide polymorphisms (SNPs) rs12979860 (located within the interleukin-28B locus), rs2228145 (interleukin-6 receptor) and rs1800795 (interleukin-6 promoter) with HCV viremia in renal transplant patients. Materials and Methods: In this analytical cross-sectional study, 149 kidney transplant recipients, 82 males (median age: 41 years) and 67 females (median age: 45 years), were screened for HCV RNA in blood using real-time polymerase chain reaction and genotyped by sequencing (rs12979860) and restriction fragment length polymorphism (rs2228145 and rs1800795). Results: HCV RNA was detected in 17 (11.41%) of the 149 patients. There was no statistically significant association between the studied SNPs and HCV viremia. However, a combination of the CT/AC/GG genotype was significantly associated with HCV viremia (odds ratio: 5.4). The genotype AA of rs2228145 in the IL-6 receptor was associated with viremia levels of >105 copies/ml (odds ratio: 5.96). Conclusion: To the best of the authors' knowledge, this is the first study that has shown that the CT/AC/GG genotype has an impact on HCV viremia in kidney transplant patients. Therefore, such SNP genotypes may potentially be used to identify transplant patients at risk of HCV infection.
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Affiliation(s)
- Khaled R Alkharsah
- Department of Microbiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Alhussain J Alzahrani
- Department of Clinical Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Obeid E Obeid
- Department of Microbiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Reem Y Aljindan
- Department of Microbiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Adnane Guella
- Prince Sultan Research Center, King Fahd Military Medical Complex, Dhahran, Saudi Arabia
| | - Amein K Al-Ali
- Department of Microbiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Hussain R Al-Turaifi
- Department of Laboratory and Blood Bank, King Fahad Hospital, Hofuf, Saudi Arabia
| | - Talal A Sallam
- Department of Medical Microbiology, Faculty of Medicine, Al-Baha University, Al-Bahah, Saudi Arabia
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Grzegorzewska AE. Genetic Polymorphisms within Interferon-λ Region and Interferon-λ3 in the Human Pathophysiology: Their Contribution to Outcome, Treatment, and Prevention of Infections with Hepatotropic Viruses. Curr Med Chem 2019; 26:4832-4851. [DOI: 10.2174/0929867325666180719121142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 03/21/2018] [Accepted: 07/09/2018] [Indexed: 12/16/2022]
Abstract
:
Genetic polymorphisms within the interferon λ (IFN-λ) chromosomal region,
mainly rs12979860 of IFN-λ4 gene (IFNL4), are known as associated with spontaneous hepatitis
C virus (HCV) resolution and sustained viral response to therapy with pegylated interferon-
α and ribavirin. Strong linkage disequilibrium of IFNL4 rs12979860 with IFNL4
rs368234815, which is casually associated with HCV spontaneous and therapeutical eradication,
at least partially explains favorable HCV outcomes attributed to major homozygosity in
rs12979860. Effects of IFN-based antiviral treatment are associated with pretreatment expression
of the IFN-λ1 receptor, expression of hepatic IFN-stimulated genes, production of IFN-
λ4, and preactivation of the JAK-STAT signaling. Nowadays direct-acting antivirals (DAAs)
became a potent tool in the treatment of hepatitis C, but IFN-λs are still under investigation as
potential antivirals and might be an option in HCV infection (DAA resistance, recurrent viremia,
adverse effects).
:
Patients with altered immunocompetence are especially prone to infections. In uremic subjects,
polymorphisms within the IFN-λ chromosomal region associate with spontaneous HCV
clearance, similarly like in the non-uremic population. Circulating IFN-λ3 shows a positive
correlation with plasma titers of antibodies to surface antigen of hepatitis B virus (anti-HBs),
which are crucial for protection against hepatitis B virus. More efficient anti-HBs production
in the presence of higher IFN-λ3 levels might occur due to IFN-λ3-induced regulation of indoleamine
2,3-dioxygenase (IDO) expression. IFN-stimulated response element is a part of
IDO gene promoter. It is worth further investigation whether IDO gene, circulating IDO, genetic
polymorphisms within the IFN-λ region, and circulating IFN-λ3 act in concordance in
immunological response to hepatotropic viruses.
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Affiliation(s)
- Alicja E. Grzegorzewska
- Chair and Department of Nephrology, Transplantology and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland
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Moghimi M, Tavakoli F, Doosti M, Ahmadi-Vasmehjani A, Akhondi-Meybodi M. Correlation between interleukin-28 gene polymorphism with interleukin-28 cytokine levels and viral genotypes among HCV patients in Yazd, Iran. BMC Res Notes 2019; 12:626. [PMID: 31551080 PMCID: PMC6760063 DOI: 10.1186/s13104-019-4651-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 09/17/2019] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES Recent studies using genome-wide association studies (GWAS) have shown the strong association between polymorphisms near the interleukin-28B (IL-28B) gene and spontaneous clearance of hepatitis C virus (HCV). The present study was designed to evaluate the association of interleukin-28 gene polymorphism with interleukin-28 cytokine levels in different viral genotypes among HCV patients in Yazd, Iran. RESULT The most prevalent genotype in chronic cases was genotype 3a, and the lowest one was 2/3a. There were statistically significant differences in genotype frequency between the two studied groups for IL-28B rs12979860C/T. The frequency of CC genotype of IL-28B at rs12979860 SNP was higher in spontaneously cleared patients in comparison with chronic HCV patients. Significant association was found when serum levels of IL28B were compared to various IL-28 genotypes. There was a significant difference between IL-28 polymorphism and HCV genotypes (p = 0.003).
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Affiliation(s)
- Mansour Moghimi
- Department of Pathology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Forough Tavakoli
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Doosti
- Infectious and Tropical Diseases Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Medical Virology, Faculty of Medical Sciences, Tarbiat Modares University (TMU), Tehran, Iran
| | - Abbas Ahmadi-Vasmehjani
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Akhondi-Meybodi
- Gastroentrology Department, Shahid Sadoughi Hospital, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
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Qin S, Wang J, Zhou C, Xu Y, Zhang Y, Wang X, Wang S. The influence of interleukin 28B polymorphisms on the risk of hepatocellular carcinoma among patients with HBV or HCV infection: An updated meta-analysis. Medicine (Baltimore) 2019; 98:e17275. [PMID: 31568008 PMCID: PMC6756689 DOI: 10.1097/md.0000000000017275] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 06/14/2019] [Accepted: 08/28/2019] [Indexed: 12/22/2022] Open
Abstract
Single nucleotide polymorphisms (SNPs) of the interleukin 28B (IL28B) gene has proven to be associated with the clinical outcome of patients with chronic hepatitis virus B or C (HBV or HCV) infections. However, whether IL28B SNPs have an influence on the risk of hepatocellular carcinoma (HCC) among patients with HBV or HCV infection remains controversial. Therefore, this study aims to determine the association between IL28B polymorphisms and the risk of HCC in individuals with HBV or HCV infection.PubMed, EMBASE, and Chinese National Knowledge Infrastructure (CNKI) databases were used to identify studies meeting the selection requirements using the terms "interleukin 28B", "IFN-lambda-3", "IFNL3", "single nucleotide polymorphisms", "SNPs", "hepatocellular carcinoma", "HCC", "liver cancer".A total of 24 eligible original studies (1 cohort study and 23 case-control studies) involved 20238 individuals (HCC group = 8725 vs control group = 11,513) were included. Both IL28B rs12979860 CC and rs8099917 TT genotypes were significantly associated with a decreased risk of HCC among patients with HBV or HCV infection (OR = 0.71, 95% CI = 0.57-0.88; OR = 0.82, 95% CI = 0.72-0.94, respectively). Egger test and Begg test revealed no' publication bias (P > .05). Sensitivity analyses suggested the robustness of the results in this meta-analysis.Both IL28B rs12979860 CC and rs8099917 TT genotypes are protective factors for the development of HCC among patients with HBV or HCV infection. Future prospective studies examining the impact of IL28B polymorphisms on the risk of HCC and investigating the underlying mechanism for the protective role of IL28B polymorphisms in HCC development are warranted.
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Affiliation(s)
- Shaoyou Qin
- Department of Gastroenterology and Hepatology, China-Japan Union Hospital of Jilin University
| | - Jiangbin Wang
- Department of Gastroenterology and Hepatology, China-Japan Union Hospital of Jilin University
| | - Changyu Zhou
- Department of Gastroenterology and Hepatology, China-Japan Union Hospital of Jilin University
| | - Yan Xu
- Department of Gastroenterology and Hepatology, China-Japan Union Hospital of Jilin University
| | - Yonggui Zhang
- Department of Gastroenterology and Hepatology, China-Japan Union Hospital of Jilin University
| | - Xu Wang
- Department of Gastroenterology and Hepatology, China-Japan Union Hospital of Jilin University
| | - Song Wang
- Department of Urology, the First Hospital of Jilin University, Changchun, China
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Mousavi Nasab SD, Ahmadi Vasmehjani A, Kaghazian H, Mardani R, Zali F, Ahmadi N, Norouzinia M, Akbari Z. Association of IL28B (IFNL3) rs12979860 mRNA levels, viral load, and liver function among HCV genotype 1a patients. GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH 2019; 12:S156-S162. [PMID: 32099617 PMCID: PMC7011071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 12/18/2018] [Indexed: 11/02/2022]
Abstract
AIM The present study was designed to evaluate the correlation of interleukin 28B (IL28B, IFNL3) rs12979860 mRNA levels, viral load, and liver function among hepatitis C virus (HCV) patients genotype 1a. BACKGROUND HCV is considered essentially hepatotropic and is a major health problem around the world. METHODS This study included 100 HCV-infected patients with HCV genotype1a (G1a) and rs12979860 CC genotype. These patients were divided into two groups according to HCV treatment. Aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), and HCV Load were measured and recorded for each patient. IL28B mRNA levels were determined using real-time polymerase chain reaction assay, and their correlation with clinical data were analyzed. STRING was applied to construct a network and identify interactions between IL28B (IFNL3) and its significant neighbor proteins. RESULTS The results revealed a significant relationship between the ALT as well as ALP levels with IL28B rs12979860 mRNA expression level in men, and also with age >50 years. In the treated group, AST level and HCV load had a significant relationship with IL28B mRNA expression level. The results showed that the level of ALP and AST decreased significantly with increased IL28B mRNA expression level in the treated and untreated group, respectively. STRING database showed that IL28B (IFNL3) interacted with ten important neighbor proteins with some of these proteins being involved in signal transduction pathway activating antiviral response. CONCLUSION This study indicated that rs12979860CC genotype could predict IL28B mRNA expression level in HCV-infected patients with G1a. Furthermore, IL28B mRNA expression level may serve as a useful marker for the development of G1a HCV-associated outcomes.
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Affiliation(s)
- Seyed Dawood Mousavi Nasab
- Department of Research and Development, Production and Research Complex, Pasteur Institute of Iran, Tehran, Iran
| | - Abbas Ahmadi Vasmehjani
- Department of Microbiology and Immunology, Jahrom University of Medical Sciences, Jahrom, Iran
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Hooman Kaghazian
- Department of Research and Development, Production and Research Complex, Pasteur Institute of Iran, Tehran, Iran
| | - Rajab Mardani
- Department of Biochemistry, Pasteur Institute of Iran, Tehran, Iran
| | - Fatemeh Zali
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Nayebali Ahmadi
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohsen Norouzinia
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Akbari
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Buivydiene A, Liakina V, Kashuba E, Norkuniene J, Jokubauskiene S, Gineikiene E, Valantinas J. Impact of the Uridine⁻Cytidine Kinase Like-1 Protein and IL28B rs12979860 and rs8099917 SNPs on the Development of Hepatocellular Carcinoma in Cirrhotic Chronic Hepatitis C Patients-A Pilot Study. MEDICINA (KAUNAS, LITHUANIA) 2018; 54:E67. [PMID: 30344298 PMCID: PMC6262489 DOI: 10.3390/medicina54050067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 09/14/2018] [Accepted: 09/21/2018] [Indexed: 12/18/2022]
Abstract
Background and objectives: The hepatitis C virus (HCV) is the major causative agent of hepatocellular carcinoma (HCC) in the western world. The efficacy of surveillance programs for early detection of HCC is not satisfactory: many tumors are diagnosed at the late, incurable stages. Therefore, there is a need in reliable prognostic markers for the proper follow-up of HCV-positive patients. The aim of the present study was to assess the prognostic value of the uridine⁻cytidine kinase-like protein 1 (UCKL-1), a putative oncoprotein, together with genetically determined polymorphisms in the interleukin 28B (IL28B) gene (rs12979860, rs8099917) in the development of HCC in HCV-positive cirrhotic patients. Materials and Methods: We included 32 HCV cirrhotic patients, 21 (65.6%) of whom had HCC. The expression of UCKL-1 was assessed in liver tissue sections, using immunohistochemistry. For IL28B rs12979860 and rs8099917 genotype analysis, the corresponding genomic regions were amplified by polymerase chain reaction (PCR) with appropriate primers. Results: We have found that UCKL-1 expression was significantly increased in HCC (p = 0.003). The presence of rs8099917 TT single-nucleotide polymorphism (SNP) elevated the chances of HCC manifestation more than sevenfold (OR = 7.3, p = 0.0273). The presence of rs12979860 CC SNP also heightened HCC chances more than sevenfold (OR = 7.5, p = 0.0765). Moreover, in the HCC group, a combination of IL28B rs12979860 non-TT and rs8099917 TT genotypes was observed more often, compared with the non-HCC group. Other combinations of IL28B rs12979860 and rs8099917 SNIPs were associated with a reduced risk of HCC development, approximately at the same extent. Conclusions: The presence of IL28B rs8099917 TT and rs12979860 CC SNPs, but not the intensity of UCKL-1 expression, is strongly associated with increased chances of HCC development in HCV-positive cirrhotic patients.
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Affiliation(s)
- Arida Buivydiene
- Center of Hepatology, Gastroenterology and Dietetics, Clinic of Gastroenterology, Nephrourology and Surgery, Vilnius University, LT-08661 Vilnius, Lithuania.
| | - Valentina Liakina
- Center of Hepatology, Gastroenterology and Dietetics, Clinic of Gastroenterology, Nephrourology and Surgery, Vilnius University, LT-08661 Vilnius, Lithuania.
- Department of Chemistry and Bioengineering, Faculty of Fundamental Sciences, Vilnius Gediminas Technical University, LT-10223 Vilnius, Lithuania.
| | - Elena Kashuba
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, SE-171 77 Stockholm, Sweden.
- RE Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology, UA-03022 Kyiv, Ukraine.
| | - Jolita Norkuniene
- Department of Mathematical Statistics, Faculty of Fundamental Sciences, Vilnius Gediminas Technical University, LT-10223 Vilnius, Lithuania.
- Vilniaus Kolegija/University of Applied Sciences, LT-08105 Vilnius, Lithuania.
| | - Skirmante Jokubauskiene
- Department of Pathology, Forensic Medicine and Pharmacology, Faculty of Medicine, Vilnius University, LT-03101 Vilnius, Lithuanian, .
- National Center of Pathology, LT-08406 Vilnius, Lithuania.
| | - Egle Gineikiene
- Center of Hematology, Oncology and Transfusion Medicine, Vilnius University Hospital Santaros Klinikos, LT-08661 Vilnius, Lithuania.
- Life Sciences Center, Vilnius University, LT-10257 Vilnius, Lithuania.
| | - Jonas Valantinas
- Center of Hepatology, Gastroenterology and Dietetics, Clinic of Gastroenterology, Nephrourology and Surgery, Vilnius University, LT-08661 Vilnius, Lithuania.
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Schietroma I, Scheri GC, Pinacchio C, Statzu M, Petruzziello A, Vullo V. Hepatitis C Virus and Hepatocellular Carcinoma: Pathogenetic Mechanisms and Impact of Direct-Acting Antivirals. Open Virol J 2018; 12:16-25. [PMID: 29541275 PMCID: PMC5842384 DOI: 10.2174/1874357901812010016] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 09/26/2017] [Accepted: 02/02/2018] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Globally, between 64 and 103 million people are chronically infected with Hepatitis C virus (HCV), with more than 4.6 million people in the United States and is associated with more than 15.000 deaths annually. Chronic infection can result in cirrhosis and hepatocellular carcinoma. EXPLANATION Epidemiological studies have indicated that persistent infection with hepatitis C virus (HCV) is a major risk for the development of hepatocellular carcinoma (HCC), mainly through chronic inflammation, cell deaths, and proliferation. Despite the new direct-acting antiviral drugs (DAA's) being able to clear the HCV, HCC recurrence rate in these patients is still observed. CONCLUSION In this review we highlighted some aspects that could be involved in the onset of HCV-induced HCC such as immune system, viral factors and host genetics factors.Moreover, we focused on some of the last reports about the effects of DAA's on the HCV clearance and their potential implications in HCC recurrence.
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Affiliation(s)
- Ivan Schietroma
- Department of Public Health and Infectious Diseases, “Sapienza” University of Rome, Rome, Italy
| | - Giuseppe Corano Scheri
- Department of Public Health and Infectious Diseases, “Sapienza” University of Rome, Rome, Italy
| | - Claudia Pinacchio
- Department of Public Health and Infectious Diseases, “Sapienza” University of Rome, Rome, Italy
| | - Maura Statzu
- Department of Molecular Medicine, Laboratory of Virology, “Sapienza” University of Rome, Rome, Italy
| | - Arnolfo Petruzziello
- Virology and Molecular Biology Unit, Department of Diagnostic Pathology, Istituto Nazionale Tumori, IRCCS Fondazione G. Pascale, Naples, Italy
| | - Vincenzo Vullo
- Department of Public Health and Infectious Diseases, “Sapienza” University of Rome, Rome, Italy
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Circulating Interferon- λ3, Responsiveness to HBV Vaccination, and HBV/HCV Infections in Haemodialysis Patients. BIOMED RESEARCH INTERNATIONAL 2017; 2017:3713025. [PMID: 29226133 PMCID: PMC5684519 DOI: 10.1155/2017/3713025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 08/16/2017] [Accepted: 08/30/2017] [Indexed: 02/07/2023]
Abstract
The IFN-λ3 gene (IFNL3) plays a role in HCV clearance. We investigated circulating IFN-λ3 and IFNL3 SNPs in haemodialysis patients who differed in their response to HBV vaccination and their HBV/HCV infection status. In 201 patients, plasma IFN-λ3 was determined using ELISA. IFNL3 SNPs (rs12979860, rs8099917) were genotyped using HRM analysis. Differences in IFN-λ3 levels were shown between responders and nonresponders to HBV vaccination and between HBsAg-positive patients and those who developed anti-HBs after infection and became HBsAg negative. HBV vaccine responders without HCV resolution revealed lower IFN-λ3 than noninfected responders. HBsAg/HCV RNA-positive subjects showed lower IFN-λ3 than patients positive only for HCV RNA or subjects who resolved both infections. Circulating IFN-λ3 correlated positively with anti-HBs and negatively with positive HCV RNA testing in the adjusted regression analyses. HBV vaccine nonresponders, HBsAg-positive patients, and subjects with replicating HCV composed a group with unfavourable outcomes. Responders to HBV vaccination, subjects who became HBsAg negative, and those who cleared HCV were analysed as having favourable outcomes. The latter showed higher IFN-λ3 but did not differ in distribution of IFNL3 SNPs compared with subjects with unfavourable outcomes. Higher IFN-λ3 concentrations are associated with response to HBV vaccination, self-limited HBV infection, and HCV resolution.
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Gao QJ, Xie JX, Wang LM, Zhou Q, Zhang SY. Interaction effects among IFN-γ+874, IL-2-330, IL-10-1082, IL-10-592 and IL-4-589 polymorphisms on the clinical progression of subjects infected with hepatitis B virus and/or hepatitis C virus: a retrospective nested case-control study. BMJ Open 2017; 7:e013279. [PMID: 28838891 PMCID: PMC5577879 DOI: 10.1136/bmjopen-2016-013279] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND The natural outcomes of hepatitis B virus (HBV) and/or hepatitis C virus (HCV) infections vary considerably among individuals The infection may heal naturally, or patients may succumb to chronic liver diseases, including chronic hepatitis, liver cirrhosis and hepatocellular carcinoma. The mechanism is not fully understood. OBJECTIVES To evaluate the interaction among four single nucleotide polymorphisms (SNPs) and their influence on different clinical outcomes. METHODS 277 individuals infected with HBV and/or HCV, including 81 patients with chronic hepatitis B and C, 122 asymptomatic HBV and/or HCV carriers and 74 controls who cleared HBV and HCV spontaneously, were involved in this study. The SNPs of four genes (rs2069762/-330 G/T of IL-2, rs2430561/+874A>T of IFN-γ, rs1800896/-1082G>A and rs1800872/-592C>A of IL-10 and rs2243250/-589C>T of IL-4) were analysed using restriction fragment length polymorphism-polymerase chain reaction or sequence-specific primer PCR. The gene-gene interactions were assessed using the multifactor-dimensionality reduction method. RESULTS Interleukin (IL)-10-592 AC and IL-4-589 CC/CT showed a synergistic effect on liver inflammatory injury (p<0.01), whereas interferon (IFN)-γ+874 AA and IL-2-330 TT had a synergistic impact (p<0.05). IFN-γ+874 AA and IL-10-1082 AA had an antagonistic effect (p<0.01) on the clinical progression, including asymptomatic HBV and HCV carriers and chronic hepatitis. IL-2-330 TT and IL-10-1082 AA synergistically influenced the clinical outcome (p<0.05). IFN-γ+874 AA, IL-2-330 TT and IL-10-1082 AA interactively affected the clinical outcome including asymptomatic HBV and HCV carriers and chronic hepatitis (p<0.05). CONCLUSIONS Interactions among polymorphisms of IFN-γ+874 AA, IL-2-330 TT, IL-10-1082 AA, IL10--592 AC and IL-4-589 CC/CT significantly influenced the clinical progression of the subjects with HBV and/or HCV infection.
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Affiliation(s)
- Qiu-Ju Gao
- Department of Preventive Medicine, Bethune Military Medical NCOs School of PLA, Shijiazhuang, China
| | - Jia-Xin Xie
- Department of Preventive Medicine, Bethune Military Medical NCOs School of PLA, Shijiazhuang, China
| | - Li-Min Wang
- Department of Preventive Medicine, Bethune Military Medical NCOs School of PLA, Shijiazhuang, China
| | - Qiang Zhou
- Department of Preventive Medicine, Bethune Military Medical NCOs School of PLA, Shijiazhuang, China
| | - Shi-Yong Zhang
- Institution of Epidemiology, Center for Disease Prevention and Control of Shijiazhuang, Shijiazhuang, China
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Alborzi A, Hashempour T, Moayedi J, Musavi Z, Pouladfar G, Merat S. Role of serum level and genetic variation of IL-28B in interferon responsiveness and advanced liver disease in chronic hepatitis C patients. Med Microbiol Immunol 2017; 206:165-174. [PMID: 28214926 DOI: 10.1007/s00430-017-0497-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 01/27/2017] [Indexed: 01/10/2023]
Abstract
Interleukin-28B (IL-28B) is suspected to be associated with response to treatment and one of the basic immunological backgrounds in liver transplant candidate (LTC). We aimed to assess whether genotypes of IL-28B can play a role in therapeutic response or advanced stages of liver disease. A total of 364 subjects were genotyped for IL-28B rs12979860 and rs8099917 SNPs using PCR-RFLP assay. Moreover, IL-28 serum level, HCV loads, and genotype were performed. A significant increase was observed in the frequencies of unfavorable rs12979860 genotypes/CT + TT in the chronic hepatitis C (CHC) and LTC groups. In the case of rs8099917, CHC group had a significantly higher frequency of unfavorable genotypes/GT + GG compared to the healthy group. IL-28B serum level was also significantly higher in healthy group compared with the CHC and LTC groups. There were no differences in the distribution of the IL-28B genotypes and haplotypes between responder and non-responder patients. Our results suggest, for the first time, that unfavorable rs12979860 genotypes can be considered one of the important immunological backgrounds in the Iranian LTC population that was confirmed with the lower IL-28 serum level compared to healthy group. Besides, there was a possible association of favorable IL-28B genotypes with lower odds of susceptibility to CHC infection but no support for a positive association between analyzed SNPs and an outcome of therapy. Moreover, non-CT haplotypes may be regarded as a genetic risk factor that can increase the chance of infection with HCV and progression toward end-stage HCV-related liver disease.
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Affiliation(s)
- Abdolvahab Alborzi
- Clinical Microbiology Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Tayebeh Hashempour
- Clinical Microbiology Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Javad Moayedi
- Clinical Microbiology Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Musavi
- Clinical Microbiology Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Gholamreza Pouladfar
- Clinical Microbiology Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shahin Merat
- Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
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Li Y, Wang J, Wang J, Xiao Y, Xu B, Li H, Yang L, Hao X, Ma Y. SVR Rates of HCV-infected population under PEG-IFN-α/R treatment in Northwest China. Virol J 2017; 14:62. [PMID: 28335783 PMCID: PMC5364675 DOI: 10.1186/s12985-017-0708-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Accepted: 02/15/2017] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Chronic HCV Patients taking PEG-IFN-α/R from different ethnic groups have different probabilities of reaching a sustained viral response (SVR). There are many influence factors, such as HCV genotype, IL-28B single-nucleotide polymorphisms (SNP), Fibrosis 4 index (FIB-4), and aspartate aminotransferase-to-platelet ratio index (APRI) score. But the baseline factors in relation to treatment outcome was still not much clear. METHODS We evaluated data from 231 chronic HCV patients with or without liver fibrosis and their antiviral efficacy after treatment with pegylated interferon plus ribavirin (PEG-IFN-α/R) for 24-48 weeks. IL-28B SNP and HCV genotypes were analyzed with genome sequencing using pyrosequencing. RESULTS Sustained viral response (SVR) rates of patients with HCV 1b and 2a genotypes were 52.25% (58/111) and 75.28% (67/89) (P < 0.01). SVR rates of patients with IL-28B rs8099917 TT, rs12979860 CC and rs12980275 AA were 92.41% (25/27), 92.86% (26/28) and 88.89% (24/27) separately. We found that SVR rates in HCV 1b and 2a patients were only 31.0 and 39.4% if their FIB-4 > 3.25. In addition, when their APRI > 2, only 30.3% of HCV 1b patients and 50.2% of HCV 2a patients could obtain SVR. CONCLUSIONS There were high proportion of HCV genotype 1b and 2a in Northwest China. In both HCV 1b and 2a genotypes, patients with protective-genotype of IL-28B were more likely to obtain SVR. However, those with significant fibrosis or cirrhosis were less likely, no matter their genotype. Combined factors of HCV genotype, IL-28B genotype, FIB-4 and ARPI may indicate high prediction and clinical value regarding treatment with PEG-IFN-α/R and prognostic evaluation of chronic hepatitis C patients.
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Affiliation(s)
- Yanhua Li
- Department of Clinical Laboratory Medicine, Xijing Hospital, The Fourth Military Medical University, 169 Changle West Road, Xi'an, Shaanxi, 710032, People's Republic of China
| | - Jiuping Wang
- Department of Infectious Disease, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, People's Republic of China
| | - Juan Wang
- Department of Clinical Laboratory Medicine, Xijing Hospital, The Fourth Military Medical University, 169 Changle West Road, Xi'an, Shaanxi, 710032, People's Republic of China
| | - Yunfeng Xiao
- Pharmacy Department, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, 710038, People's Republic of China
| | - Bin Xu
- Shandong International Trust Co., Ltd, Jinan, Shandong, 250013, People's Republic of China
| | - Hongwei Li
- Department of Clinical Laboratory Medicine, Xijing Hospital, The Fourth Military Medical University, 169 Changle West Road, Xi'an, Shaanxi, 710032, People's Republic of China
| | - Liu Yang
- Department of Clinical Laboratory Medicine, Xijing Hospital, The Fourth Military Medical University, 169 Changle West Road, Xi'an, Shaanxi, 710032, People's Republic of China
| | - Xiaoke Hao
- Department of Clinical Laboratory Medicine, Xijing Hospital, The Fourth Military Medical University, 169 Changle West Road, Xi'an, Shaanxi, 710032, People's Republic of China.
| | - Yueyun Ma
- Department of Clinical Laboratory Medicine, Xijing Hospital, The Fourth Military Medical University, 169 Changle West Road, Xi'an, Shaanxi, 710032, People's Republic of China.
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Preclinical evaluation of multi antigenic HCV DNA vaccine for the prevention of Hepatitis C virus infection. Sci Rep 2017; 7:43531. [PMID: 28266565 PMCID: PMC5339862 DOI: 10.1038/srep43531] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 01/25/2017] [Indexed: 02/07/2023] Open
Abstract
Direct-acting antiviral treatment for hepatitis C virus (HCV) infection is costly and does not protect from re-infection. For human and chimpanzees, recovery from acute HCV infection correlates with host CD4+ and CD8+ T cell responses. DNA plasmids targeting the HCV non-structural antigens NS3, NS4, and NS5, were previously reported to induce robust and sustained T cell responses in mice and primates. These plasmids were combined with a plasmid encoding cytokine IL-28B, together named as VGX-6150. The dose-dependent T cell response and safety of VGX-6150 administered intramuscularly and followed by electroporation was assessed in mice. Immune responses plateaued at 20 μg/dose with IL-28B demonstrating significant immunoadjuvant activity. Mice administered VGX-6150 at 40, 400, and 800 μg given either as a single injection or as 14 injections given bi-weekly over 26 weeks showed no vaccine related changes in any clinical parameter compared to placebo recipients. There was no evidence of VGX-6150 accumulation at the injection site or in any organ 1 month following the 14th vaccination. Based on these studies, the approximate lethal dose (ALD) exceeds 800 μg/dose and the NOAEL was 800 μg/dose in mouse. In conclusion, VGX-6150 appears safe and a promising preventive vaccine candidate for HCV infection.
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Grzegorzewska AE, Świderska MK, Mostowska A, Warchoł W, Jagodziński PP. Antibodies to HBV surface antigen in relation to interferon-λ3 in hemodialysis patients. Vaccine 2016; 34:4866-4874. [PMID: 27595449 DOI: 10.1016/j.vaccine.2016.08.073] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Revised: 07/29/2016] [Accepted: 08/24/2016] [Indexed: 12/22/2022]
Abstract
AIM To investigate circulating IFN-λ3 and IFNL3 polymorphisms in hemodialysis (HD) patients differing in HBV surface antigen antibody (anti-HBs) production. METHODS The study included 106 HBV-vaccinated HD patients (88 developed anti-HBs) and 36 HBV-infected HD subjects (27 developed anti-HBs). Plasma IFN-λ3 (enzyme-linked immunosorbent assay) and rs12979860 (C>T) and rs8099917 (T>G) in IFNL3 (high-resolution melting curve analysis) were analyzed with regard to the association with anti-HBs production in response to HBV vaccination or infection. The results were adjusted for gender, age, cause of renal disease, dialysis vintage, dialysis modality, IFN-λ3, and 25(OH)D as appropriate. RESULTS HBV vaccine responders had higher circulating IFN-λ3 (ng/L) than non-responders (120, 36-233 vs. 53, 33-109, P<0.000001). Patients who generated anti-HBs after HBV infection also had higher circulating IFN-λ3 levels than those who did not (133, 35-215 vs. 71, 9-229, P=0.043). The IFN-λ3 concentration correlated with the anti-HBs titer in vaccinated (r=0.614, P<0.000001) and infected patients (r=0.589, P=0.0002). Plasma IFN-λ3 was the only significant indicator of responsiveness to HBV vaccination (adjusted P=0.018) and remained the only significant associate for the development of post-infection anti-HBs (adjusted P=0.049). A plasmaIFN-λ3 level of 85.5ng/L was thecut-off value for theprognosis of an anti-HBs titer below vs. equal to or over 10IU/L in the entire group of HD patients (ROC sensitivity 68.7%, specificity 85.2%, and AUC 0.827). Significant associations were not found between IFN-λ3 and IFNL3 rs12979860. Subjects treated with low flux HD that harbored the TT genotype in rs8099917 showed higher IFN-λ3 levels than patients bearing the G allele in rs8099917 (139, 68-233 vs. 103, 9-208, P=0.049). CONCLUSION In HD patients, circulating IFN-λ3 strongly correlates with anti-HBs production after HBV vaccination and infection. IFNL3 rs8099917 polymorphisms seem to be associated with IFN-λ3 plasma levels in HD subjects.
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Affiliation(s)
- Alicja E Grzegorzewska
- Chair and Department of Nephrology, Transplantology and Internal Diseases, Poznan University of Medical Sciences, Poznań 60-355, Przybyszewskiego 49, Poland.
| | - Monika K Świderska
- Student Nephrology Research Group, Chair and Department of Nephrology, Transplantology and Internal Diseases, Poznan University of Medical Sciences, Poznań 60-355, Przybyszewskiego 49, Poland.
| | - Adrianna Mostowska
- Chair and Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, Poznań 60-781, Święcickiego 6, Poland.
| | - Wojciech Warchoł
- Chair and Department of Biophysics, Poznan University of Medical Sciences, Poznań 60-780, Grunwaldzka 6, Poland.
| | - Paweł P Jagodziński
- Chair and Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, Poznań 60-781, Święcickiego 6, Poland.
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MIrExpress: A Database for Gene Coexpression Correlation in Immune Cells Based on Mutual Information and Pearson Correlation. J Immunol Res 2015; 2015:140819. [PMID: 26881263 PMCID: PMC4735977 DOI: 10.1155/2015/140819] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 11/09/2015] [Indexed: 01/08/2023] Open
Abstract
Most current gene coexpression databases support the analysis for linear correlation of gene pairs, but not nonlinear correlation of them, which hinders precisely evaluating the gene-gene coexpression strengths. Here, we report a new database, MIrExpress, which takes advantage of the information theory, as well as the Pearson linear correlation method, to measure the linear correlation, nonlinear correlation, and their hybrid of cell-specific gene coexpressions in immune cells. For a given gene pair or probe set pair input by web users, both mutual information (MI) and Pearson correlation coefficient (r) are calculated, and several corresponding values are reported to reflect their coexpression correlation nature, including MI and r values, their respective rank orderings, their rank comparison, and their hybrid correlation value. Furthermore, for a given gene, the top 10 most relevant genes to it are displayed with the MI, r, or their hybrid perspective, respectively. Currently, the database totally includes 16 human cell groups, involving 20,283 human genes. The expression data and the calculated correlation results from the database are interactively accessible on the web page and can be implemented for other related applications and researches.
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