Xaveer Van Ostade

ORCID: 0000-0003-4078-3014
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About
Contact & Profiles
Research Areas
  • Immune Response and Inflammation
  • Cytokine Signaling Pathways and Interactions
  • Cervical Cancer and HPV Research
  • Reproductive tract infections research
  • Monoclonal and Polyclonal Antibodies Research
  • RNA Interference and Gene Delivery
  • Syphilis Diagnosis and Treatment
  • NF-κB Signaling Pathways
  • Meat and Animal Product Quality
  • HIV Research and Treatment
  • interferon and immune responses
  • Toxin Mechanisms and Immunotoxins
  • Immune Cell Function and Interaction
  • Mosquito-borne diseases and control
  • Adenosine and Purinergic Signaling
  • Phytochemicals and Medicinal Plants
  • Neutrophil, Myeloperoxidase and Oxidative Mechanisms
  • Cell Adhesion Molecules Research
  • Animal Behavior and Welfare Studies
  • Glycosylation and Glycoproteins Research
  • Estrogen and related hormone effects
  • Cassava research and cyanide
  • Advanced Proteomics Techniques and Applications
  • Urological Disorders and Treatments
  • Protein purification and stability

University of Antwerp
2012-2024

VIB-UAntwerp Center for Molecular Neurology
2011-2019

Ghent University
1988-2015

Vlaams Instituut voor Biotechnologie
1999-2000

South Australia Pathology
1994-1997

Hanson Institute
1996-1997

University of Edinburgh
1997

Roche (Belgium)
1989

Cervical-vaginal fluid (CVF) plays an important role in the prevention of gynecological infections, although little is known about contribution CVF proteins to immunity lower female genital tract. In order analyze protein composition human CVF, we used samples that are routinely collected during colposcopy, but usually discarded. Since these available large quantities aimed their usefulness for proteomics experiments. The were analyzed using different prefractionation techniques...

10.1186/1477-5956-7-17 article EN cc-by Proteome Science 2009-04-17

Abstract To understand the growth response to drought, we performed a proteomics study in leaf zone of maize ( Zea mays L.) seedlings and functionally characterized role starch biosynthesis regulation growth, photosynthesis antioxidant capacity, using shrunken‐2 mutant sh2 ), defective ADP‐glucose pyrophosphorylase. Drought altered abundance 284 proteins overrepresented for photosynthesis, amino acid, sugar metabolism, redox‐regulation. Changes protein levels correlated with enzyme...

10.1111/pce.13813 article EN Plant Cell & Environment 2020-06-03

Cervicovaginal fluid has an important function in the homeostasis and immunity of lower female genital tract. Analysis cervicovaginal proteome may therefore yield information about pathogenesis numerous gynecological pathologies. Additionally, great potential as a source biomarkers for these conditions.This review provides detailed discussion human proteomics studies performed to characterize this biological fluid. Furthermore, infection-correlated pathological conditions tract are discussed...

10.1186/1477-5956-8-63 article EN cc-by Proteome Science 2010-12-01

Objectives Cervicovaginal fluid (CVF) can be considered as a potential source of biomarkers for diseases the lower female reproductive tract. The easily collected, thereby offering new opportunities such development self tests. Our objective was to identify CVF protein biomarker cervical cancer or its precancerous state. Methods A differential proteomics study set up using samples from healthy and women. Label-free spectral counting applied quantify abundances. Results proteome analysis...

10.1371/journal.pone.0106488 article EN cc-by PLoS ONE 2014-09-12

The performance and acceptability of first-void urine as specimen for the detection HPV DNA in a Belgian referral population was evaluated using an optimized sample collection processing protocol. One hundred ten cervical samples were collected from 25- to 64-year-old women who referred colposcopy (January–November 2016). Paired analyzed by Riatol qPCR genotyping assay. Acceptability data gathered through questionnaires (NCT02714127). A higher high-risk prevalence observed (n = 76/110)...

10.1007/s10096-017-3179-1 article EN cc-by European Journal of Clinical Microbiology & Infectious Diseases 2018-02-07

Background The spirochete bacterium Treponema pallidum ssp. is the etiological agent of syphilis, a chronic multistage disease. Little known about global T. proteome, therefore mass spectrometry studies are needed to bring insights into pathogenicity and protein expression profiles during infection. Methodology/Principal Findings To better understand proteome profile infection, we studied DAL-1 strain bacteria isolated from rabbits using complementary techniques, including multidimensional...

10.1371/journal.pntd.0004988 article EN cc-by PLoS neglected tropical diseases 2016-09-08

Chikungunya virus (CHIKV) is an arbovirus with a global spread and significant public health impact. It positive stranded RNA alphavirus belonging to the Togaviridae family. However, many questions about replication cycle of CHIKV remain unanswered. The entry process not completely understood nor are associated virus-receptor interactions fully identified. Here, we designed affinity purification mass spectrometry coupled approach that allowed identification factors facilitate in human cells....

10.3389/fmicb.2021.615165 article EN cc-by Frontiers in Microbiology 2021-02-25

We examined the interaction of ECM1 (extracellular matrix protein 1) using yeast two-hybrid screening and identified type II transmembrane protein, PLSCR1 (phospholipid scramblase 1), as a binding partner. This was then confirmed by in vitro vivo co-immunoprecipitation experiments, additional pull-down experiments with GST-tagged ECM1a fragments localized this to occur within tandem repeat region ECM1a. Furthermore, immunohistochemical staining revealed partial overlap human skin at basal...

10.1074/jbc.m110.136408 article EN cc-by Journal of Biological Chemistry 2010-09-25

Background HIV-1 replication depends on a delicate balance between cellular co-factors and antiviral restriction factors. Lens epithelium-derived growth factor (LEDGF/p75) benefits HIV, whereas apolipoprotein B mRNA-editing catalytic polypeptide-like 3G (APOBEC3G), tripartite motif 5alpha (TRIM5α), tetherin exert anti-HIV activity. Expression levels of these proteins possibly contribute to resistance in HIV-1-exposed populations. Methodology/Principal Findings We used real-time PCR flow...

10.1371/journal.pone.0033934 article EN cc-by PLoS ONE 2012-03-27

Previously, we reported that the cytotoxic activity of human (h) tumor necrosis factor (TNF) on murine (m) L929 cells requires integrity three loops (positions 30-36, 84-88 and 138-150) which cluster around interface between each two subunits trimeric hTNF structure. The collection mutants was further characterized by their various cell systems as well binding to types receptor (R), R55 R75. It turned out amino acids (Leu29 Arg32) were specifically involved in hR75 binding, Leu29-->Ser...

10.1111/j.1432-1033.1994.tb18678.x article EN European Journal of Biochemistry 1994-03-01

TNF, a cytokine with cytotoxic activity on variety of tumor cells, is mainly produced by macrophages; however, some cell types non-macrophage origin, apparently resistant to TNF-mediated lysis, can also produce TNF. It not clear whether these cells were TNF-resistant priori or protective mechanisms against toxicity autocrine TNF may be induced in TNF-producing cells. Murine L929sA fibrosarcoma which are highly sensitive cytotoxicity, transfected the neomycin resistance (neor) gene, alone...

10.4049/jimmunol.148.9.2785 article EN The Journal of Immunology 1992-05-01
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