Search results for "PAMPs"

showing 3 items of 3 documents

Mechanisms of Defence to Pathogens : Biochemistry and Physiology

2014

SPE IPM; International audience; Plant defences comprise both pre-existing barriers as well as defences induced upon perception of pathogen-associated molecular patterns (PAMPs) or microbe-associated molecular patterns (MAMPs) or molecules produced from damage as a result of infection (damage-associated molecular patterns (DAMPs)). This chapter focuses on the induced mechanisms of defence. The inducibility of phytoalexin biosynthesis has probably been favoured in the course of evolution by biological constraints such as metabolic costs and functional side-effects associated with chemical defence. Historically, the term ‘hypersensitive’ refers to the rapid and localized cell death induced in…

0106 biological sciences0303 health sciences[SDV]Life Sciences [q-bio]plant defencesfood and beveragespathogenspathogenesis-related (PR) proteinsBiology01 natural sciencesPhytoalexin biosynthesisMicrobiologymicrobe-associated molecular patterns (MAMPs)03 medical and health scienceshypersensitive response (HR)Biochemistrypathogen-associated molecular patterns (PAMPs)[SDE]Environmental Sciences[SDV.BV]Life Sciences [q-bio]/Vegetal Biologydamage-associated molecular patterns (DAMPs)phytoalexin biosynthesis030304 developmental biology010606 plant biology & botany
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Updated insights into the mechanism of action and clinical profile of the immunoadjuvant QS-21: A review

2019

Background Vaccine adjuvants are compounds that significantly enhance/prolong the immune response to a co-administered antigen. The limitations of the use of aluminium salts that are unable to elicite cell responses against intracellular pathogens such as those causing malaria, tuberculosis, or AIDS, have driven the development of new alternative adjuvants such as QS-21, a triterpene saponin purified from Quillaja saponaria. Purpose The aim of this review is to attempt to clarify the mechanism of action of QS-21 through either receptors or signaling pathways in vitro and in vivo with special emphasis on the co-administration with other immunostimulants in new adjuvant formulations, called a…

InflammasomesT-Lymphocytesmedicine.medical_treatmentHerpes zosterPharmaceutical ScienceMonophosphoryl Lipid AAPCs antigen presenting cellsMiceCMI cell mediated immunity0302 clinical medicineDrug DiscoveryHerpes Zoster VaccineMedicineNSCLC non small cell lung carcinomaCancerImmunity CellularVaccines Synthetic0303 health sciencesImmunogenicityIl-2 interleukine 2HIV human immunodeficiency virusLipid A030220 oncology & carcinogenesisCytokinesMolecular MedicineDCs dendritic cellsNK natural killerAdjuvantTLR Toll-like receptorHerpes Zoster VaccineCD cluster of differentiationAntigen-Presenting CellsCTL cytotoxic T lymphocytesHZ herpes zosterMPL 3-deacylated monophosphoryl lipidVaccine adjuvantImmunoadjuvantArticleVZV varicella zoster virus03 medical and health sciencesImmune systemAdjuvants ImmunologicAntigenPAMPs pathogen-associated molecular patternsMalaria VaccinesPRRs pathogen recognition receptorsQS-21 Quillaja saponaria Molina-fraction 21AnimalsMHC major histocompatibility complexMtb Mycobacterium tuberculosis bacteriaSARS severe acute respiratory syndromeAntigen-presenting cellIFN-γ interferon-gamma030304 developmental biologyPharmacologybusiness.industryA-β amyloid-betaTNF-α tumor necrosis factor-alphaSaponinsQS-21MalariaQuillaja saponariaComplementary and alternative medicineTCR T-cell receptorLiposomesImmunologyKLH keyhole limpet hemocyaninbusinessdLN draining lymph nodesMAPK mitogen activated protein kinasePhytomedicine
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The grapevine LysM receptor-like kinase VvLYK5-1 mediates chitin-triggered immunity

2021

The establishment of defense reactions to protect plants against invading pathogens first requiresthe recognition of Microbe-Associated Molecular Patterns (MAMPs), detected by plasmamembrane-bound Pattern Recognition Receptors (PRRs). These MAMPs, also termed elicitors, areused in several biocontrol products that are gradually developing to reduce the use of chemicalpesticides in agriculture. Chitin, the main component of fungal cell walls, as well as its deacetylatedderivative, chitosan, are two chitooligosaccharides (COS) that can be found in some of theseproducts. Unfortunately, the mechanism allowing the perception of these molecules is still poorlyunderstood in Vitis vinifera, sometime…

induced immunity[SDV] Life Sciences [q-bio]Pathogen-Associated Molecular Patterns (PAMPs)LysM Receptors Kinases (LYKs)Pattern Recognition Receptors (PRRs)chitooligosaccharides (COS)
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