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| COVID-19 research v1.38 | TNF |
Sarah Leigh changed review comment from: TNF was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 3 grouping (experimental evidence and association data consistent with viral susceptibility); to: TNF was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 3 grouping (experimental evidence and association data consistent with viral susceptibility). Illumina review: PMID: 10719836: Herbein et al. (Review) TNF is a proinflammatory cytokine plays a key role in the host response to viral infection. TNF enhances or inhibits viral replication depending on the virus involved and the cell type infected. The binding of TNF to the TNF receptors can activate, differentiate, or kill target cells thereby interfering with the viral life cycle. In contrast, viruses have evolved to appropriate the TNF/TNFR pathway to evade immune responses and favor viral dissemination. From OMIM: PMID: 12915457;Kim et al. (2003) To investigate whether TNF-alpha promoter polymorphisms are associated with clearance of hepatitis B virus (HBV) infection, Kim et al. (2003) genotyped 1,400 Korean subjects, 1,109 of whom were chronic HBV carriers and 291 who spontaneously recovered. The TNF promoter alleles that were previously reported to be associated with higher plasma levels (presence of -308A or the absence of -863A alleles), were strongly associated with the resolution of HBV infection. Haplotype analysis revealed that TNF-alpha haplotype 1 (-1031T; -863C; -857C; -308G; -238G; -163G) and haplotype 2 (-1031C; -863A; -857C; -308G; -238G; -163G) were significantly associated with HBV clearance, showing protective antibody production and persistent HBV infection, respectively (P = 0.003-0.02). From OMIM: PMID: 11506397 Quasney et al. The presence of the A allele at the TNF-alpha-308 site was overrepresented among adults with HIV dementia compared to those without dementia (0.28 vs 0.07; OR 5.5; 95% CI 1.8-17.0) and a healthy control population (0.28 vs 0.11). The increased frequency of the A allele in HlV-infected adults with dementia suggests that this locus may play a role in the pathophysiology of dementia and suggests a genetic predisposition for the development of HIV dementia. PMID: 26657940 García-Ramírez et al. (2015) - 145 patients with influenza A (H1N1) (pA/H1N1), 133 patients with influenza-like illness (ILI), and 360 asymptomatic healthy contacts (AHCs) were included from a Mexican population were studied. The TNF-238 GA genotype was associated with an increased risk of disease severity (OR =16.06, p = 0.007). PMID: 31986264: Huang et al. (2020) Study of 41 patients admitted to hospital with laboratory-confirmed 2019-nCoV. Compared with non-ICU patients, ICU patients had higher plasma levels of proinflammatory cytokines and chemokines including IL2, IL7, IL10, GSCF, IP10, MCP1, MIP1A, and TNFα. |
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| COVID-19 research v1.35 | IL7 |
Sarah Leigh changed review comment from: IL7 was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 1 grouping (clear GDA/viral susceptibility); to: IL7 was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 1 grouping (clear GDA/viral susceptibility). Illumina review: PMID 25981006 – Horev et al. (2015) reported three cases from one consanguineous Arab family characterized by severe CD41T-cell lymphopenia, generalized verrucosis due to HPV infections, predisposition to opportunistic C. neoformans meningitis, and recurrent squamous cell carcinomas of the skin in sun-exposed areas. Whole exome sequencing analysis of one case (patient 3) identified a homozygous variant in the IL 7 gene, c.205A>T ( p.Arg69Ter). PMID: 31900472 Kosumi et al. (2020) reported two generalized verrucosis (GV) patients homozygous for a novel mutation in the start codon of IL7. IL-7 deficiency was not accompanied CD4 T lymphocytopenia, circulating CD4 T-cells were not depleted in one of the patients, suggesting a GV pathogenesis other than poor T-cell development. |
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| COVID-19 research v1.35 | IL7 | Sarah Leigh Publications for gene: IL7 were set to 25981006 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.11 | IL7 | Alison Coffey reviewed gene: IL7: Rating: AMBER; Mode of pathogenicity: ; Publications: 31900472, 25981006; Phenotypes: ; Mode of inheritance: Unknown | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.10 | IL7 | Sarah Leigh commented on gene: IL7 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.1 | IL7 | Rebecca Foulger commented on gene: IL7 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.1 | IL7 |
Rebecca Foulger gene: IL7 was added gene: IL7 was added to COVID-19 research. Sources: OMIM,Expert list,Expert Review Amber Mode of inheritance for gene: IL7 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: IL7 were set to 25981006 Phenotypes for gene: IL7 were set to {?Epidermodysplasia verruciformis, susceptibility to, 5}, 618309 |
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| COVID-19 research v0.36 | IL7R |
Ellen McDonagh gene: IL7R was added gene: IL7R was added to Viral susceptibility. Sources: Expert Review Green,ESID Registry 20171117,North West GLH,Victorian Clinical Genetics Services,GRID V2.0,NHS GMS,GOSH PID v.8.0,London North GLH,SCID v1.6,IUIS Classification February 2018 Mode of inheritance for gene: IL7R was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: IL7R were set to Severe combined immunodeficiency, T-cell negative, B-cell/natural killer cell-positive; Severe combined immunodeficiency, T-cell negative, B-cell/natural killer cell-positive type; Nl NK; Severe Combined Immune Deficiency; Atypical Severe Combined Immunodeficiency (Atypical SCID); Immunodeficiencies affecting cellular and humoral immunity; T-B+ SCID; Omenn syndrome; Severe combined immunodeficiency (SCID); IL7Ra deficiency |
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