<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="https://ontobee.org/ontology/view/CL?iri=http://purl.obolibrary.org/obo/CL_1000447"?>
<rdf:RDF xmlns="http://www.w3.org/2002/07/owl#"
     xml:base="http://www.w3.org/2002/07/owl"
     xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
     xmlns:owl="http://www.w3.org/2002/07/owl#"
     xmlns:oboInOwl="http://www.geneontology.org/formats/oboInOwl#"
     xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
     xmlns:dcterms="http://purl.org/dc/terms/"
     xmlns:cl="http://purl.obolibrary.org/obo/cl#"
     xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
     xmlns:ns4="http://purl.obolibrary.org/obo/"
     xmlns:foaf="http://xmlns.com/foaf/0.1/"
     xmlns:dc="http://purl.org/dc/elements/1.1/">
    


    <!-- 
    ///////////////////////////////////////////////////////////////////////////////////////
    //
    // Annotation properties
    //
    ///////////////////////////////////////////////////////////////////////////////////////
     -->

    <AnnotationProperty rdf:about="http://www.geneontology.org/formats/oboInOwl#hasExactSynonym"/>
    <AnnotationProperty rdf:about="http://purl.obolibrary.org/obo/IAO_0000115"/>
    <AnnotationProperty rdf:about="http://www.geneontology.org/formats/oboInOwl#hasDbXref"/>
    <AnnotationProperty rdf:about="http://purl.obolibrary.org/obo/cl#human_subset"/>
    <AnnotationProperty rdf:about="http://www.geneontology.org/formats/oboInOwl#inSubset"/>
    <AnnotationProperty rdf:about="http://purl.obolibrary.org/obo/cl#mouse_subset"/>
    <AnnotationProperty rdf:about="http://purl.org/dc/terms/description"/>
    


    <!-- 
    ///////////////////////////////////////////////////////////////////////////////////////
    //
    // Datatypes
    //
    ///////////////////////////////////////////////////////////////////////////////////////
     -->

    


    <!-- 
    ///////////////////////////////////////////////////////////////////////////////////////
    //
    // Object Properties
    //
    ///////////////////////////////////////////////////////////////////////////////////////
     -->

    


    <!-- http://purl.obolibrary.org/obo/BFO_0000050 -->

    <ObjectProperty rdf:about="http://purl.obolibrary.org/obo/BFO_0000050">
        <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#TransitiveProperty"/>
        <rdfs:label>part of</rdfs:label>
        <rdfs:label xml:lang="en">part of</rdfs:label>
    </ObjectProperty>
    


    <!-- 
    ///////////////////////////////////////////////////////////////////////////////////////
    //
    // Classes
    //
    ///////////////////////////////////////////////////////////////////////////////////////
     -->

    


    <!-- http://purl.obolibrary.org/obo/CL_0000646 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CL_0000646">
        <rdfs:label>basal cell</rdfs:label>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/CL_1000447 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/CL_1000447">
        <rdfs:label>epithelial cell of stratum germinativum of esophagus</rdfs:label>
        <equivalentClass>
            <Class>
                <intersectionOf rdf:parseType="Collection">
                    <rdf:Description rdf:about="http://purl.obolibrary.org/obo/CL_0000646"/>
                    <Restriction>
                        <onProperty rdf:resource="http://purl.obolibrary.org/obo/BFO_0000050"/>
                        <someValuesFrom rdf:resource="http://purl.obolibrary.org/obo/UBERON_0001976"/>
                    </Restriction>
                </intersectionOf>
            </Class>
        </equivalentClass>
        <rdfs:subClassOf rdf:resource="http://purl.obolibrary.org/obo/CL_0000646"/>
        <rdfs:subClassOf>
            <Restriction>
                <onProperty rdf:resource="http://purl.obolibrary.org/obo/BFO_0000050"/>
                <someValuesFrom rdf:resource="http://purl.obolibrary.org/obo/UBERON_0001976"/>
            </Restriction>
        </rdfs:subClassOf>
        <oboInOwl:hasDbXref>FMA:70731</oboInOwl:hasDbXref>
        <oboInOwl:hasExactSynonym>basal cell of esophageal epithelium</oboInOwl:hasExactSynonym>
        <ns4:IAO_0000115>A basal cell that is part of the epithelium of esophagus.</ns4:IAO_0000115>
        <rdfs:seeAlso>https://cellxgene.cziscience.com/cellguide/CL_1000447</rdfs:seeAlso>
        <dcterms:description>The epithelial cell in the stratum germinativum of the esophagus, commonly referred to as a basal cell, is a crucial component of the body&#39;s mechanism for tissue homeostasis and regeneration. Situated in the deepest layer of the esophageal lining, these cells are pivotal in preserving the integrity of the esophagus, which faces exposure to various physical and chemical irritants like stomach acid, food particles, and pathogens.
These cells are renowned for their proliferative potential. When the superficial layers of the esophageal epithelium are damaged, these basal cells are triggered to multiply, differentiate, and migrate upwards to restore the integrity and function of the affected tissue. This process, known as regeneration or repair, ensures that the esophageal wall remains continuous and functional, capable of performing its primary task: the conveyance of food and drink from the mouth to the stomach.
However, it&#39;s crucial to recognize that the continuous cycle of damage and repair in the esophageal epithelium, driven by the epithelial cells of the stratum germinativum, can result in pathological conditions like Barrett&#39;s esophagus and esophageal cancer. Under certain conditions, these basal cells may deviate from their normal differentiation into squamous cells and instead transform into abnormal cell types, such as intestinal columnar cells, contributing to the development of these diseases.

(This extended description was generated by ChatGPT and reviewed by the CellGuide team, who added references, and by the CL editors, who approved it for inclusion in CL. It may contain information that applies only to some subtypes and species, and so should not be considered definitional.)</dcterms:description>
        <oboInOwl:inSubset rdf:resource="http://purl.obolibrary.org/obo/cl#cellxgene_subset"/>
        <oboInOwl:inSubset rdf:resource="http://purl.obolibrary.org/obo/cl#human_subset"/>
        <oboInOwl:inSubset rdf:resource="http://purl.obolibrary.org/obo/cl#mouse_subset"/>
    </Class>
    


    <!-- http://purl.obolibrary.org/obo/UBERON_0001976 -->

    <Class rdf:about="http://purl.obolibrary.org/obo/UBERON_0001976">
        <rdfs:label>epithelium of esophagus</rdfs:label>
    </Class>
</rdf:RDF>



<!-- Generated by the OWL API (version 3.2.4.1806) http://owlapi.sourceforge.net -->



