Search results for "Allorecognition"

showing 2 items of 2 documents

Ancient Immunity. Phylogenetic Emergence of Recognition-Defense Mechanisms.

2021

Although still scarcely considered by the majority of the biomedical world, invertebrates have greatly contributed to the elucidation of fundamental biological problems [...]

0301 basic medicineGeneral Immunology and MicrobiologyPhylogenetic treeQH301-705.5Defence mechanismsSettore BIO/05 - ZoologiaBiologyGeneral Biochemistry Genetics and Molecular Biology03 medical and health sciences030104 developmental biology0302 clinical medicinen/aEditorialEvolutionary biologyImmunity030220 oncology & carcinogenesisBiology (General)General Agricultural and Biological SciencesAncient Immunity Invertebrates allorecognitionBiology
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Polymorphism in the immunoglobulin-like domains of the receptor tyrosine kinase from the sponge Geodia cydonium.

1996

Sponges [Porifera] are the phylogenetically oldest phylum of the Metazoa. They are provided with both cellular and humoral allorecognition systems. The underlying molecules are not yet known. To study allorecognition in sponges we first determined the frequency of graft rejection in a natural population of the marine sponge Geodia cydonium. We then determined, for the first time at the molecular level, the degree of sequence polymorphism in segments of one molecule which may be related to sponge allorecognition and host defense: the Ig-like domains from the receptor tyrosine kinase [RTK]. Thirty six pairs of auto- and allografts were assayed, either by parabiotic attachment or insertion of …

Graft RejectionDNA ComplementaryGeodia cydoniumMolecular Sequence DataImmunoglobulinsPolymerase Chain ReactionReceptor tyrosine kinaseMolecular levelSequence Homology Nucleic AcidAnimalsGeodiaAmino Acid SequenceAllorecognitionGene LibraryPolymorphism GeneticGraft rejectionbiologyBase SequenceSequence Homology Amino AcidReceptor Protein-Tyrosine KinasesGeneral MedicineAnatomySequence Analysis DNAbiology.organism_classificationCell biologyPoriferaSpongesurgical procedures operativebiology.proteinAntibodyCell adhesion and communication
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