diff --git a/src/ontology/maxo-edit.owl b/src/ontology/maxo-edit.owl
index 652c9bc3..b6f540b4 100644
--- a/src/ontology/maxo-edit.owl
+++ b/src/ontology/maxo-edit.owl
@@ -991,6 +991,7 @@ Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0001605>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0001606>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0001607>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0001608>))
+Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0001609>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0009003>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0009004>))
 Declaration(Class(<http://purl.obolibrary.org/obo/MAXO_0009005>))
@@ -11477,6 +11478,16 @@ AnnotationAssertion(dce:date <http://purl.obolibrary.org/obo/MAXO_0001608> "2024
 AnnotationAssertion(rdfs:label <http://purl.obolibrary.org/obo/MAXO_0001608> "sleep apnea treatment")
 SubClassOf(<http://purl.obolibrary.org/obo/MAXO_0001608> <http://purl.obolibrary.org/obo/MAXO_0000951>)
 
+# Class: <http://purl.obolibrary.org/obo/MAXO_0001609> (fetal cell transplantation)
+
+AnnotationAssertion(<http://purl.obolibrary.org/obo/IAO_0000115> <http://purl.obolibrary.org/obo/MAXO_0001609> "Transplantation of fetal tissue into a person to treat disease.")
+AnnotationAssertion(dce:creator <http://purl.obolibrary.org/obo/MAXO_0001609> <https://orcid.org/0000-0001-7941-2961>)
+AnnotationAssertion(dce:date <http://purl.obolibrary.org/obo/MAXO_0001609> "2024-07-25T14:10:48Z"^^xsd:dateTime)
+AnnotationAssertion(<http://www.geneontology.org/formats/oboInOwl#hasExactSynonym> <http://purl.obolibrary.org/obo/MAXO_0001609> "fetal cell therapy")
+AnnotationAssertion(<http://www.geneontology.org/formats/oboInOwl#hasExactSynonym> <http://purl.obolibrary.org/obo/MAXO_0001609> "fetal tissue implantation")
+AnnotationAssertion(rdfs:label <http://purl.obolibrary.org/obo/MAXO_0001609> "fetal cell transplantation")
+SubClassOf(<http://purl.obolibrary.org/obo/MAXO_0001609> <http://purl.obolibrary.org/obo/MAXO_0000068>)
+
 # Class: <http://purl.obolibrary.org/obo/MAXO_0009003> (preimplantation genetic testing)
 
 AnnotationAssertion(Annotation(<http://www.geneontology.org/formats/oboInOwl#hasDbXref> "NCBIBook:NBK5191") <http://purl.obolibrary.org/obo/IAO_0000115> <http://purl.obolibrary.org/obo/MAXO_0009003> "Genetic testing of one or more cells removed from early embryos conceived by in vitro fertilization and transferring to the mother's uterus only those embryos determined not to have the pathogenic variant(s)/chromosome anomaly(ies) of concern.")
@@ -12890,5 +12901,5 @@ AnnotationAssertion(dcterms:creator <http://purl.obolibrary.org/obo/MAXO_0035122
 AnnotationAssertion(dce:date <http://purl.obolibrary.org/obo/MAXO_0035123> "2023-04-11T12:00:00Z")
 AnnotationAssertion(dcterms:contributor <http://purl.obolibrary.org/obo/MAXO_0035123> <https://orcid.org/0000-0002-0736-9199>)
 AnnotationAssertion(dcterms:creator <http://purl.obolibrary.org/obo/MAXO_0035123> <https://orcid.org/0000-0001-7941-2961>)
-AnnotationAssertion(<http://purl.obolibrary.org/obo/maxo#ABBREVIATION> _:genid2147483650 "")
+AnnotationAssertion(<http://purl.obolibrary.org/obo/maxo#ABBREVIATION> _:genid2147483651 "")
 )
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