Jérémy Lambert

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We have isolated from the hemolymph of immunized larvae of the dipteran insect Phormia terranovae two peptides that are selectively active against Gram-positive bacteria. They are positively charged peptides of 40 residues containing three intramolecular disulfide bridges and differ from one another by only a single amino acid. These peptides are neither(More)
Injection of heat-killed bacteria into larvae of the large tenebrionid beetle Zophobas atratus (Insecta, Endopterygota, Coleoptera) results in the appearance in the hemolymph of a potent antibacterial activity as evidenced by a plate growth inhibition assay. We have isolated three peptides (A-C) from this immune hemolymph which probably account for most of(More)
The multifunctional protein netrin-1 was initially discovered as the main attractive cue for commissural axon guidance by acting through its receptor DCC. Recently, we have shown that netrin-1 also interacts with the orphan transmembrane receptor amyloid precursor protein (APP). APP is cleaved by proteases, generating amyloid-β peptide, the main component(More)
Surface plasmon resonance imaging systems, such as Flexchip from Biacore, are capable of monitoring hundreds of reaction spots simultaneously within a single flow cell. Interpreting the binding kinetics in a large-format flow cell presents a number of potential challenges, including accounting for mass transport effects and spot-to-spot sample depletion. We(More)
In response to microbial infection or mechanical injury, larvae of the fly, Phormia terranovae (Diptera), can induce de novo production of a group of antibacterial proteins including: peak I protein, diptericin A, diptericin B, diptericin C, and peak V protein. Administration of L-canavanine at the time of mechanical injury results in the incorporation of(More)
A bacterial challenge of larvae of the dipteran insect Phormia terranovae induces the rapid synthesis of diptericin, an antibacterial polypeptide, previously characterized at the amino acid level and indirectly by cDNA cloning studies. This 82-residue polypeptide consists of an N-terminal proline-rich domain and a central and C-terminal glycine-rich domain.(More)
A method was developed to rapidly identify high-affinity human antibodies from phage display library selection outputs. It combines high-throughput Fab fragment expression and purification with surface plasmon resonance (SPR) microarrays to determine kinetic constants (kon and koff) for 96 different Fab fragments in a single experiment. Fabs against human(More)
Injury or injection of live bacteria into third instar larvae of the dipteran insect Phormia terranovae results in the appearance in the haemolymph of at least five groups of heat-stable, more or less basic peptides with antibacterial activity against Escherichia coli. Three of these peptides have been purified. The amino acid sequence has been completely(More)
BACKGROUND Clostridium difficile is the leading cause of antibiotic-associated diarrhea and an important source of nosocomial infection. Clinical manifestations can range from mild diarrhea to lethal pseudomembranous colitis. Little is known about the burden of C. difficile infections (CDI) in patients. OBJECTIVE This qualitative study explored the impact(More)
AIMS To determine fasting and postprandial metabolism of apolipoprotein B48 (apoB48) remnant lipoproteins in subjects with Type 1 diabetes and the relationship to progressive cardiovascular disease, and to investigate the impact of remnant lipoprotein cholesterol accumulation associated with arterial wall biglycan using a rodent model of Type 1 diabetes. (More)