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Jacques Fellay

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Publications associées (185)

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Paediatric Personalized Research Network Switzerland (SwissPedHealth): a joint paediatric national data stream

Jacques Fellay, Dylan Lawless, Mariam Ait Oumelloul, Simon Christian J Boutry

Introduction Children represent a large and vulnerable patient group. However, the evidence base for most paediatric diagnostic and therapeutic procedures remains limited or is often inferred from adults. There is an urgency to improve paediatric healthcar ...

2024

HIV peptidome-wide association study reveals patient-specific epitope repertoires associated with HIV control

Jacques Fellay, Paul Jack Mc Laren, Nimisha Chaturvedi

Genetic variation in the peptide-binding groove of the highly polymorphic HLA class I molecules has repeatedly been associated with HIV-1 control and progression to AIDS, accounting for up to 12% of the variation in HIV-1 set point viral load (spVL). This ...

National Academy of Sciences2019

Immunological lessons from genome-wide association studies of infections

Jacques Fellay, Christian Axel Wandall Thorball, Alessandro Borghesi

Over the past few years, genome-wide association studies (GWAS) have been increasingly applied to identify host genetic factors influencing clinical and laboratory traits related to immunity and infection, and to understand the interplay between the host a ...

CURRENT BIOLOGY LTD2021

Association of a Polygenic Risk Score With Osteoporosis in People Living With HIV: The Swiss HIV Cohort Study

Jacques Fellay, Christian Axel Wandall Thorball

An individual polygenic risk score was associated with osteoporosis in people living with HIV. The genetic effect was robust, as it persisted after multivariable adjustment for established traditional and HIV-related osteoporosis risk factors, including te ...

OXFORD UNIV PRESS INC2023

Joint host-pathogen genomic analysis identifies hepatitis B virus mutations associated with human NTCP and HLA class I variation

Jacques Fellay, Zhi Ming Xu, Dylan Lawless, Andreas Scheck, Olivier Noël Marie Naret, Arne Schneuing

Evolutionary changes in the hepatitis B virus (HBV) genome could reflect its adaptation to host -induced selective pressure. Leveraging paired human exome and ultra -deep HBV genome-sequencing data from 567 affected individuals with chronic hepatitis B, we ...

Cell Press2024

Polymorphisms of large effect explain the majority of the host genetic contribution to variation of HIV-1 virus load

Jacques Fellay, Paul Jack Mc Laren, Istvan Bartha

Previous genome-wide association studies (GWAS) of HIV-1-infected populations have been underpowered to detect common variants with moderate impact on disease outcome and have not assessed the phenotypic variance explained by genome-wide additive effects. ...

National Academy of Sciences2015

The influence of human genetic variation on Epstein–Barr virus sequence diversity

Jacques Fellay, Christian Hammer, Dylan Lawless, Olivier Noël Marie Naret, Sina Rüeger

Epstein–Barr virus (EBV) is one of the most common viruses latently infecting humans. Little is known about the impact of human genetic variation on the large inter-individual differences observed in response to EBV infection. To search for a potential imp ...

Nature Research2021

Effect of Fc Receptor Genetic Diversity on HIV-1 Disease Pathogenesis

Jacques Fellay, Christian Axel Wandall Thorball

Fc receptor (FcR) genes collectively have copy number and allelic polymorphisms that have been implicated in multiple inflammatory and autoimmune diseases. This variation might also be involved in etiology of infectious diseases. The protective role of Fc- ...

2019

The risk of COVID-19 death is much greater and age dependent with type I IFN autoantibodies

Jacques Fellay

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection fatality rate (IFR) doubles with every 5 y of age from childhood onward. Circulating autoantibodies neutralizing IFN-alpha, IFN-omega, and/or IFN-beta are found in similar to 20% of dec ...

National Academy of Sciences2022

Proteome-wide prediction of the mode of inheritance and molecular mechanisms underlying genetic diseases using structural interactomics

Jacques Fellay

Genetic diseases can be classified according to their modes of inheritance and their underlying molecular mechanisms. Autosomal dominant disorders often result from DNA variants that cause loss-of-function, gain-of-function, or dominant-negative effects, w ...

Elsevier BV2025

Rapid Progression of Kidney Dysfunction in People Living With HIV: Use of Polygenic and Data Collection on Adverse Events of Anti-HIV Drugs (D:A:D) Risk Scores

Jacques Fellay, Christian Axel Wandall Thorball

Background In people with human immunodeficiency virus (PWH), it is unknown whether genetic background associates with rapid progression of kidney dysfunction (ie, estimated glomerular filtration rate [eGFR] decrease of >5mL/min/1.73m(2) per year for >= 3 ...

OXFORD UNIV PRESS INC2021

Blood virosphere in febrile Tanzanian children

Jacques Fellay, Nicolas Jean Philippe Guex, Mary-Anne Hartley, Christian Iseli, Thomas Junier, Gasser Hassan Elbanna Abdelbaset Abdelrahman Elbanna

Viral infections are the leading cause of childhood acute febrile illnesses motivating consultation in sub-Saharan Africa. The majority of causal viruses are never identified in low-resource clinical settings as such testing is either not part of routine s ...

2021

Distinctive roles of age, sex, and genetics in shaping transcriptional variation of human immune responses to microbial challenges

Jacques Fellay

The contribution of host genetic and nongenetic factors to immunological differences in humans remains largely undefined. Here, we generated bacterial-, fungal-, and viral-induced immune transcriptional profiles in an age- and sex-balanced cohort of 1,000 ...

2017

Vaccine breakthrough hypoxemic COVID-19 pneumonia in patients with auto-Abs neutralizing type I IFNs

Jacques Fellay

Life-threatening "breakthrough"cases of critical COVID-19 are attributed to poor or waning antibody (Ab) response to SARS-CoV-2 vaccines in individuals already at risk. Preexisting auto-Abs neutralizing type I IFNs underlie at least 15% of critical COVID-1 ...

2023

Using viral diversity to identify HIV-1 variants under HLA-dependent selection in a systematic viral genome-wide screen

Jacques Fellay

The pathogenesis of HIV-1 infection is governed by a highly dynamic, time-dependent interaction between the host and the viral genome. In this study, we developed a novel systematic approach to assess the host-virus interaction, using average pairwise vira ...

PUBLIC LIBRARY SCIENCE2024

The Interplay Between Host Genetic Variation, Viral Replication, and Microbial Translocation in Untreated HIV-Infected Individuals

Jacques Fellay, Istvan Bartha

Systemic immune activation, a major determinant of human immunodeficiency virus (HIV) disease progression, is the result of a complex interplay between viral replication, dysregulation of the immune system, and microbial translocation due to gut mucosal da ...

Oxford University Press2015

HIV Transmission Chains Exhibit Greater HLA-B Homogeneity Than Randomly Expected

Jacques Fellay, Christian Axel Wandall Thorball

Background: HIV's capacity to escape immune recognition by human leukocyte antigen (HLA) is a core component of HIV pathogenesis. A better understanding of the distribution of HLA class I in HIV-infected patients would improve our knowledge of pathogenesis ...

LIPPINCOTT WILLIAMS & WILKINS2019

Inborn errors of type I IFN immunity in patients with life-threatening COVID-19

Jacques Fellay

Clinical outcome upon infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ranges from silent infection to lethal coronavirus disease 2019 (COVID-19). We have found an enrichment in rare variants predicted to be loss-of-function (LOF ...

American Association for the Advancement of Science2020

Increased prevalence of clonal hematopoiesis of indeterminate potential amongst people living with HIV

Jacques Fellay, Konstantin Popadin, Christian Axel Wandall Thorball

People living with human immunodeficiency virus (PLWH) have significantly increased risk for cardiovascular disease in part due to inflammation and immune dysregulation. Clonal hematopoiesis of indeterminate potential (CHIP), the age-related acquisition an ...

Nature Portfolio2022

A Phylogeny-aware GWAS Framework to Correct for Heritable Pathogen Effects on Infectious Disease Traits

Jacques Fellay, Christian Axel Wandall Thorball

Infectious diseases are particularly challenging for genome-wide association studies (GWAS) because genetic effects from two organisms (pathogen and host) can influence a trait. Traditional GWAS assume individual samples are independent observations. Howev ...

OXFORD UNIV PRESS2022