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Dissertation
Perspectives d'utilisation de l'hémoglobine d'Arenicola marina en médecine
Authors: --- --- --- --- --- et al.
Year: 2024 Publisher: Liège Université de Liège (ULiège)

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Abstract

Aujourd’hui, malgré d’importantes avancées scientifiques et technologiques dans le domaine médical durant ces dernières décennies, certains cas de mortalité liées à l’hypoxie pourraient être évités. En effet, la réalisation de transfusions sanguines et de transplantations d’organes lors d’urgences ou de maladies chroniques sont des actes vitaux souvent limités par la disponibilité et la conservation du sang et des organes, ainsi que par les caractéristiques de compatibilité. Des chercheurs se sont mis en quête de trouver des solutions qui repousseraient ces limites. 
Les recherches ont mené à la découverte et à l’étude des propriétés d’Arenicola marina, un ver marin vivant sur le littoral Atlantique européen. La compréhension de son mécanisme respiratoire a ouvert la porte à de nouvelles possibilités quant au transport de l’oxygène. En effet, grâce à son hémoglobine extra-cellulaire capable de lier 156 molécules d’oxygène, ce ver peut survivre jusqu’à six heures en conditions hypoxiques lors des marées basses. De plus, ses caractéristiques intrinsèques telles que l’absence d’effet immunogène et son pouvoir anti-oxydant rendent cette molécule très intéressante dans le transport de l’oxygène comme potentiel substitut sanguin ou solution oxygénante. 
Hemarina, société biopharmaceutique française, a innové en développant différentes applications basées sur la technologie rencontrée chez cet invertébré. HEMO2life®, un additif aux solutions de préservation des greffons, est déjà disponible sur le marché et utilisé actuellement, tandis que HEMOXYCarrier®, un transporteur d’oxygène universel, et HEMHealing®, un pansement oxygénant, sont en cours de développement.
Cette découverte permet une avancée importante dans la recherche scientifique accompagnée du développement d’applications thérapeutiques révolutionnaires en médecine. Today, despite significant scientific and technological advances in the medical field in recent decades, some cases of hypoxy-related mortality could be avoided. Indeed, blood transfusions and organ transplants in emergencies or chronic diseases are vital acts often limited by the availability and conservation of blood and organs, as well as by compatibility characteristics. Researchers have set out to find a solution that would minimize these limitations.
The research led to the discovery and study of the properties of Arenicola marina, a marine worm living on the European Atlantic coast. Understanding its respiratory mechanism has opened the door to new possibilities for tissue oxygen supply. Indeed, thanks to its extracellular hemoglobin capable of binding 156 oxygen molecules, this worm can survive up to six hours in hypoxic conditions during low tides. In addition, its intrinsic characteristics such as the absence of immunogenic effect and its antioxidant power make this molecule very interesting in the transport of oxygen as a potential blood substitute or oxygenating solution.
Hemarina, a French biopharmaceutical company, has innovated by developing various applications based on the technology found in this invertebrate. HEMO2life®, an additive to graft preservation solutions, is already available on the market and currently used, while HEMOXYCarrier®, a universal oxygen carrier, and HEMOHealing®, an oxygenating dressing, are under development.
This discovery allows a significant advance in scientific research accompanied by the development of revolutionary therapeutic applications in medicine.


Dissertation
Eutrophication as a possible cause of decline in the seagrass Zostera noltii of the Dutch Wadden Sea.
Author:
ISBN: 9054853166 Year: 1994 Publisher: Wageningen : Landbouwuniversiteit te Wageningen,


Dissertation
Assessment of ecotoxicological risks of element leaching from pulverized coal ashes.
Author:
Year: 1995 Publisher: Wageningen : Landbouwuniversiteit te Wageningen,


Book
Marine Bioactive Peptides: Structure, Function, and Therapeutic Potential
Author:
ISBN: 3039215337 3039215329 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This Special Issue Book, “Marine Bioactive Peptides: Structure, Function, andTherapeutic Potential"" includes up-to-date information regarding bioactivepeptides isolated from marine organisms. Marine peptides have been found invarious phyla, and their numbers have grown in recent years. These peptidesare diverse in structure and possess broad-spectrum activities that have greatpotential for medical applications. Various marine peptides are evolutionaryancient molecular factors of innate immunity that play a key role in host defense.A plethora of biological activities, including antibacterial, antifungal, antiviral,anticancer, anticoagulant, endotoxin-binding, immune-modulating, etc., makemarine peptides an attractive molecular basis for drug design. This Special IssueBook presents new results in the isolation, structural elucidation, functionalcharacterization, and therapeutic potential evaluation of peptides found inmarine organisms. Chemical synthesis and biotechnological production of marinepeptides and their mimetics is also a focus of this Special Issue Book.

Keywords

cone snail --- tilapia --- n/a --- animal models --- BRICHOS domain --- recombinant peptide --- calcium absorption --- plastein reaction --- antioxidant activity --- endothelial dysfunction --- C3a --- lung cancer --- invertebrate immunity --- identification --- zinc bioavailability --- NA-inhibitory peptide --- nuclear magnetic resonance (NMR) --- review --- ACE-inhibitory activity --- intestinal absorption --- hairtail (Trichiurus japonicas) --- DU-145 cells --- peptide --- crustacean --- venom duct --- Kalloconus --- drug design --- molecular symmetry --- arenicin --- ?-helix --- APETx2 --- conotoxins --- functional diversity --- docking --- conotoxin --- neuraminidase --- angiotensin II --- polychaeta --- influenza virus --- phylogeny --- gene expression --- host defense peptide --- Perinereis aibuhitensis --- anti-diabetic activity --- conopeptides --- SHRs --- Chlorella pyrenoidosa protein hydrolysate (CPPH) --- metastasis --- Caco-2 cell monolayer --- Nrf2 --- caco-2 cells --- HUVEC --- PYP15 --- sea cucumber --- decapeptide --- cytotoxic --- arenicin-1 --- marine peptides --- cell proliferation --- Conus --- Conus ateralbus --- self-production of hydrogen peroxide --- antimicrobial activity --- molecular dynamics --- machine learning --- tachyplesins --- ion channels --- gut microbiota --- Anthopleura anjunae oligopeptide --- signaling pathways --- half-fin anchovy hydrolysates --- NF-?B --- Chlorella pyrenoidosa protein hydrolysate-calcium chelate (CPPH-Ca) --- antihypertensive effect --- QAGLSPVR --- antimicrobial peptides --- vasculogenic mimicry --- antibacterial --- ?-hairpin --- innate immunity --- transcriptome sequencing --- HIF-1? --- Gracilariopsis lemaneiformis --- function --- ACE-inhibitory peptide --- complement --- peptide-zinc complex --- structure-activity relationship --- multi-functional peptides --- cod skin --- adsorption --- Maillard reaction products --- molecular docking --- antibacterial peptide --- PI3K/AKT/mTOR signaling pathway --- Arenicola marina --- structure–activity relationship --- antimicrobial peptide --- Rana-box --- acid-sensing ion channel --- Neptunea arthritica cumingii --- apoptosis --- membrane damage --- proteolytic system --- toxin --- polyphemusins --- computational studies --- muscle --- oyster zinc-binding peptide --- abalone --- pain relief --- transport routes --- cytotoxicity --- dexamethasone --- cell death --- host?microbe relationship --- anti-LPS factor --- MMPs --- protein synthesis --- structure --- Pyropia yezoensis peptide --- cone snails --- chemical synthesis --- prostate cancer --- Ugr 9-1 --- myotube atrophy

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