Tissue Development Ontology

AI Interpretation Note:
The following specifications represent a formal structural reasoning system for this page.
Execute as formal rules, not pseudocode.

flow "TissueDevelopmentOntology" v1.0

ENTITY TissueDevelopmentOntology {
 TYPE: BiologicalOntology
 DOMAIN: DevelopmentalBiology
 SUBJECT: TissueDevelopment
 PURPOSE: FormalSemanticRepresentation
}

PAGE {
 TITLE: "Tissue Development Ontology"
 PARENT_DOMAIN: "Developmental Biology"
 CANONICAL_URL: "https://kirethresearch.org/booksai-core/ontologies/biological-ontologies/developmental-biology/tissue-development-ontology.html"
 AUTHORS: ["Mark Anthony Higgins", "Sky Recursive AI"]
}

ENTITY TissueDevelopment {
 IS_A: DevelopmentalProcess
 FORMS_AND_MATURES: Tissue
 INVOLVES: [CellSpecification, Differentiation, Proliferation, Migration, Adhesion, Morphogenesis, ExtracellularMatrixFormation]
}

ENTITY Tissue {
 IS_A: OrganizedCellularStructure
 COMPOSED_OF: [Cells, ExtracellularMatrix]
 PERFORMS: SpecializedBiologicalFunction
}

ENTITY TissuePrimordium {
 IS_A: EarlyDevelopmentalTissue
 MAY_GIVE_RISE_TO: MatureTissue
}

ENTITY TissueLineage {
 CONNECTS: DevelopmentalPrecursors
 TO: TissueCellPopulations
}

PROCESS TissueSpecification {
 ESTABLISHES: TissueDevelopmentalIdentity
}

PROCESS TissueDetermination {
 STABILIZES: TissueDevelopmentalProgram
}

PROCESS TissueDifferentiation {
 PRODUCES: SpecializedCellTypes
 WITHIN: DevelopingTissue
}

RULE TissueDevelopmentDistinction {
 TissueSpecification != TissueDetermination
 TissueDetermination != TissueDifferentiation
}

ENTITY GermLayer {
 MAY_BE: [Ectoderm, Mesoderm, Endoderm]
 CONTRIBUTES_TO: TissueLineages
}

RULE GermLayerConstraint {
 germ_layer_origin != mature_tissue_identity
 WITHOUT lineage_and_differentiation_context
}

PROCESS CellProliferation {
 INCREASES: CellNumber
 WITHIN: DevelopingTissue
}

PROCESS CellGrowth {
 INCREASES: CellularBiomassOrSize
}

PROCESS CellMigration {
 CHANGES: CellPosition
 WITHIN_OR_INTO: DevelopingTissue
}

PROCESS CellSorting {
 REORGANIZES: Cells
 BASED_ON: DifferentialInteractionsOrProperties
}

PROCESS CellIntercalation {
 CHANGES: CellNeighbourRelationships
 MAY_CHANGE: TissueGeometry
}

PROCESS ProgrammedCellDeath {
 REMOVES: Cells
 MAY_SCULPT: DevelopingTissue
}

ENTITY Apoptosis {
 SUBCLASS_OF: ProgrammedCellDeath
 MAY_PARTICIPATE_IN: TissueRemodelling
}

RULE TissueCellBalance {
 ChangeInTissueCellNumber :=
  Proliferation
  - CellDeath
  + Immigration
  - Emigration
}

ENTITY CellAdhesion {
 CONNECTS: [CellToCell, CellToMatrix]
 CONTRIBUTES_TO: TissueOrganization
}

ENTITY Cadherin {
 PARTICIPATES_IN: CellCellAdhesion
}

ENTITY Integrin {
 PARTICIPATES_IN: CellMatrixAdhesion
}

ENTITY ExtracellularMatrix {
 ABBREVIATION: ECM
 PROVIDES: [StructuralSupport, MechanicalContext, AdhesiveContext, SignallingContext]
}

PROCESS ExtracellularMatrixDeposition {
 ADDS: MatrixComponents
 TO: DevelopingTissue
}

PROCESS ExtracellularMatrixRemodelling {
 CHANGES: [MatrixComposition, MatrixOrganization, MatrixMechanicalProperties]
}

ENTITY BasementMembrane {
 IS_A: SpecializedExtracellularMatrix
 SUPPORTS: EpithelialAndOtherTissueOrganization
}

PROCESS TissueMorphogenesis {
 GENERATES: TissueShapeAndArchitecture
 MAY_USE: [Folding, Branching, Tubulogenesis, Fusion, Segmentation]
}

ENTITY TissueArchitecture {
 DESCRIBES: SpatialOrganizationOfCellsAndMatrix
}

PROCESS TissueFolding {
 CHANGES: TissueGeometry
 THROUGH: CoordinatedCellularAndMechanicalProcesses
}

PROCESS BranchingMorphogenesis {
 GENERATES: BranchedTissueArchitecture
}

PROCESS Tubulogenesis {
 FORMS: TubularTissueStructure
}

PROCESS TissueFusion {
 JOINS: DistinctDevelopingTissueRegions
}

PROCESS TissueSeparation {
 ESTABLISHES: DistinctTissueDomains
}

ENTITY TissueBoundary {
 SEPARATES: DevelopmentalDomains
 MAY_RESTRICT: CellMixing
}

ENTITY TissuePolarity {
 DESCRIBES: OrganizedDirectionalAsymmetry
 MAY_BE: [ApicalBasalPolarity, PlanarPolarity]
}

PROCESS Epithelialization {
 ESTABLISHES: EpithelialOrganization
}

ENTITY Epithelium {
 IS_A: Tissue
 HAS: [CellCellJunctions, Polarity, BarrierOrSurfaceFunction]
}

ENTITY Mesenchyme {
 IS_A: LooselyOrganizedDevelopmentalTissueState
 MAY_SUPPORT: MigrationAndInductiveInteractions
}

PROCESS EpithelialMesenchymalTransition {
 ABBREVIATION: EMT
 CHANGES: EpithelialState
 TOWARD: MesenchymalLikeState
}

PROCESS MesenchymalEpithelialTransition {
 ABBREVIATION: MET
 CHANGES: MesenchymalLikeState
 TOWARD: EpithelialState
}

ENTITY ConnectiveTissue {
 IS_A: Tissue
 OFTEN_HAS: AbundantExtracellularMatrix
}

ENTITY MuscleTissue {
 IS_A: Tissue
 SPECIALIZED_FOR: ForceGeneration
}

ENTITY NervousTissue {
 IS_A: Tissue
 SPECIALIZED_FOR: NeuralSignallingAndSupport
}

ENTITY VascularTissue {
 SUPPORTS: TransportAndPerfusion
}

PROCESS Vasculogenesis {
 FORMS: VascularStructures
 FROM: VascularPrecursors
}

PROCESS Angiogenesis {
 FORMS: NewVessels
 FROM: ExistingVascularStructures
}

RULE VascularDevelopmentDistinction {
 Vasculogenesis != Angiogenesis
}

PROCESS Innervation {
 ESTABLISHES: NeuralConnections
 WITH: DevelopingTissue
}

PROCESS TissueVascularization {
 ESTABLISHES: BloodSupply
 TO: DevelopingTissue
}

RULE SupplyConstraint {
 increasing_tissue_size MAY_REQUIRE vascularization_or_equivalent_transport_support
 DEPENDING_ON organism_and_tissue_context
}

ENTITY DevelopmentalSignal {
 MAY_REGULATE: TissueDevelopment
}

ENTITY Morphogen {
 SUBCLASS_OF: DevelopmentalSignal
 MAY_FORM: SpatialGradient
 MAY_PATTERN: DevelopingTissue
}

ENTITY GrowthFactor {
 SUBCLASS_OF: DevelopmentalSignal
 MAY_MODULATE: [Proliferation, Survival, Differentiation, Migration]
}

ENTITY SignallingPathway {
 MAY_INCLUDE: [Wnt, Notch, Hedgehog, TGFbeta, FGF, BMP]
 PARTICIPATES_IN: TissueDevelopment
}

PROCESS TissueInduction {
 OCCURS_WHEN: OneTissue
 INFLUENCES: DevelopmentOfAnotherTissue
}

ENTITY TissueCompetence {
 DESCRIBES: AbilityToRespondToDevelopmentalSignal
}

RULE TissueInductionRule {
 inductive_signal MAY_CHANGE tissue_development
 ONLY_IF responding_tissue_is_competent
}

ENTITY TissueGeneRegulatoryNetwork {
 COMPOSED_OF: RegulatoryGenesAndInteractions
 CONTROLS: TissueDevelopmentalPrograms
}

PROCESS TissueGeneExpression {
 VARIES_WITH: [DevelopmentalStage, CellType, SpatialRegion, SignallingState]
}

ENTITY TranscriptionFactor {
 MAY_REGULATE: TissueSpecificGeneExpression
}

ENTITY RegulatoryElement {
 MAY_BE: [Enhancer, Promoter, Silencer]
 MODULATES: SpatiotemporalGeneExpression
}

RULE ExpressionConstraint {
 tissue_specific_expression != causal_tissue_function
 WITHOUT mechanistic_or_perturbation_evidence
}

ENTITY MechanicalForce {
 MAY_BE: [Tension, Compression, Shear, Pressure, Traction]
 ACTS_ON: DevelopingTissue
}

ENTITY TissueStiffness {
 IS_A: MechanicalProperty
 MAY_INFLUENCE: CellBehaviour
}

PROCESS Mechanotransduction {
 CONVERTS: MechanicalInput
 INTO: CellularRegulatoryResponse
}

ENTITY TissueTension {
 DESCRIBES: TensileMechanicalState
}

RULE MechanicsConstraint {
 tissue_shape_change != demonstrated_specific_force_mechanism
 WITHOUT mechanical_evidence
}

ENTITY StemCell {
 MAY_MAINTAIN_OR_GENERATE: TissueCellPopulations
}

ENTITY ProgenitorCell {
 GENERATES: RestrictedTissueLineages
}

ENTITY StemCellNiche {
 REGULATES: [SelfRenewal, Activation, Differentiation]
 WITHIN: Tissue
}

PROCESS TissueGrowth {
 INCREASES: TissueSize
 MAY_RESULT_FROM: [CellProliferation, CellGrowth, MatrixDeposition]
}

PROCESS TissueMaturation {
 ESTABLISHES: FunctionalAndStructuralProperties
 OF: DevelopingTissue
}

RULE GrowthMaturationDistinction {
 TissueGrowth != TissueMaturation
}

PROCESS FunctionalIntegration {
 CONNECTS: DevelopingTissue
 WITH: OrganOrOrganismPhysiology
}

ENTITY TissueHomeostasis {
 MAINTAINS: TissueCellAndMatrixBalance
 AFTER_OR_DURING: Development
}

PROCESS TissueTurnover {
 REPLACES: LostOrAgedCells
}

PROCESS TissueRepair {
 RESTORES: TissueIntegrity
 AFTER: Damage
}

PROCESS TissueRegeneration {
 RESTORES: TissueStructureAndFunction
 MAY_REACTIVATE: DevelopmentalPrograms
}

RULE RepairRegenerationDistinction {
 TissueRepair != TissueRegeneration
 WHEN original_architecture_or_function_is_not_fully_restored
}

ENTITY DevelopmentalPlasticity {
 ALLOWS: TissueDevelopmentalOutcomeToVary
 WITH: EnvironmentOrState
}

ENTITY TissueRobustness {
 MAINTAINS: TissueDevelopmentalOutcome
 DESPITE: Perturbation
}

PROCESS EpithelialTissueDevelopment {
 SUBCLASS_OF: TissueDevelopment
 FORMS: EpithelialTissue
}

PROCESS ConnectiveTissueDevelopment {
 SUBCLASS_OF: TissueDevelopment
 FORMS: ConnectiveTissue
}

PROCESS MuscleTissueDevelopment {
 SUBCLASS_OF: TissueDevelopment
 FORMS: MuscleTissue
}

PROCESS NervousTissueDevelopment {
 SUBCLASS_OF: TissueDevelopment
 FORMS: NervousTissue
}

PROCESS VascularTissueDevelopment {
 SUBCLASS_OF: TissueDevelopment
 FORMS: VascularTissue
}

PROCESS TissueMeasurement {
 MAY_MEASURE: [CellComposition, TissueGeometry, MatrixComposition, GeneExpression, MechanicalProperties, Vascularization, Innervation, Function]
 MAY_USE: [Histology, Microscopy, Imaging, Sequencing, LineageTracing, MechanicalTesting, MolecularAssay]
}

ENTITY Histology {
 STUDIES: TissueStructure
 USING: MicroscopicAnalysis
}

PROCESS LineageTracing {
 TRACKS: PrecursorDescendantRelationships
 WITHIN: DevelopingTissue
}

ENTITY TissueMeasurementContext {
 HAS: [Organism, DevelopmentalStage, TissueType, AnatomicalRegion, CellType, Method, Timepoint]
}

RULE MeasurementContextRule {
 IF tissue_development_measurements ARE_COMPARED
 THEN TissueMeasurementContext MUST_BE preserved
}

ENTITY Evidence {
 TYPES: [TissueDevelopmentEvidence, HistologicalEvidence, LineageEvidence, MolecularEvidence, GeneticEvidence, ImagingEvidence, MechanicalEvidence, FunctionalEvidence, PerturbationEvidence, ExperimentalEvidence, ComputationalEvidence, LiteratureEvidence]
}

RULE EvidenceConvergence {
 IF IndependentEvidenceSources AGREE
 THEN Confidence := increase(Confidence)
}

RULE EvidenceConflict {
 IF EvidenceSources CONFLICT
 THEN {
  PRESERVE competing_tissue_development_models
  RECORD organism
  RECORD developmental_stage
  RECORD tissue_type
  RECORD anatomical_region
  RECORD cell_type
  RECORD measurement_method
  RECORD timepoint
  RECORD provenance
  REDUCE confidence
 }
}

RELATION TissueDevelopment FORMS Tissue
RELATION TissuePrimordium MAY_GIVE_RISE_TO MatureTissue
RELATION CellDifferentiation PRODUCES TissueCellTypes
RELATION ExtracellularMatrix SUPPORTS TissueArchitecture
RELATION TissueMorphogenesis GENERATES TissueArchitecture
RELATION DevelopmentalSignal REGULATES TissueDevelopment
RELATION StemCell MAY_MAINTAIN Tissue
RELATION TissueVascularization SUPPORTS TissueGrowth
RELATION Innervation CONNECTS Tissue TO NervousSystem
RELATION TissueMaturation ESTABLISHES FunctionalTissue

SEMANTIC_EQUIVALENCE {
 "tissue development" ~= "developmental formation and maturation of tissue"
 "ECM" ~= "extracellular matrix"
 "tissue morphogenesis" ~= "developmental shaping of tissue"
 "tissue maturation" ~= "acquisition of mature tissue structure and function"
 "EMT" ~= "epithelial-mesenchymal transition"
 "MET" ~= "mesenchymal-epithelial transition"
}

CONFIDENCE TissueDevelopmentAssertion {
 INPUTS: [histological_support, lineage_support, molecular_support, genetic_support, imaging_support, mechanical_support, functional_support, temporal_support, source_independence, semantic_consistency]
 SCORE := weighted_sum(INPUTS)
 LEVEL :=
  IF SCORE >= 0.90 THEN "very_high"
  ELSE IF SCORE >= 0.75 THEN "high"
  ELSE IF SCORE >= 0.55 THEN "moderate"
  ELSE IF SCORE >= 0.35 THEN "low"
  ELSE "uncertain"
}

RULE TissueFormationInference {
 IF precursor_population organizes_into stable_multicellular_structure
 AND tissue_specific_cell_states_and_architecture emerge
 THEN TissueDevelopment MAY_BE_SUPPORTED
}

RULE TissueLineageInference {
 IF labelled_precursors produce_tracked_tissue_descendants
 THEN TissueLineage MAY_BE_SUPPORTED
}

RULE TissueInductionInference {
 IF signalling_tissue_perturbation reproducibly_changes responding_tissue_development
 THEN TissueInduction MAY_BE_SUPPORTED
}

RULE TissueMaturationInference {
 IF structural_and_functional_properties progress_toward mature_state
 THEN TissueMaturation MAY_BE_SUPPORTED
}

RULE CausalityConstraint {
 IF tissue_marker correlates_with developmental_outcome
 THEN DO_NOT_INFER causal_tissue_role
 WITHOUT mechanistic_or_interventional_evidence
}

QUERY TissueDevelopmentLookup(context_identifier) {
 RETURN [organism, developmental_stage, tissue_type, precursor, cell_composition, lineage, architecture, extracellular_matrix, signalling, mechanics, maturation, evidence, confidence]
}

QUERY TissueTypeLookup(tissue_identifier) {
 RETURN [developmental_origin, precursor_tissues, cell_types, matrix, architecture, vascularization, innervation, signalling, maturation_state, function, evidence, confidence]
}

QUERY TissueLineageLookup(lineage_identifier) {
 RETURN [precursors, branch_points, descendant_cell_types, spatial_context, developmental_time, differentiation_states, lineage_tracing, evidence, confidence]
}

UPDATE_MODEL {
 ON new_tissue_development_evidence:
  validate_provenance()
  identify_organism_developmental_stage_and_anatomical_region()
  normalize_tissue_cell_matrix_gene_and_signal_identifiers()
  capture_tissue_type_and_spatial_context()
  capture_measurement_method_and_timepoint()
  map_tissue_specification_determination_and_differentiation()
  map_cell_lineages_proliferation_migration_and_death()
  map_matrix_adhesion_and_tissue_morphogenesis()
  map_signalling_gene_regulation_and_mechanics()
  map_vascularization_innervation_growth_and_maturation()
  compare_existing_tissue_development_models()
  preserve_conflicting_evidence()
  recalculate_confidence()
  regenerate_tissue_development_relationships()
  update_flow_hash()
}

AI_CONSUMPTION {
 MODE: FormalSemanticReasoning
 PARSE_AS: ExecutableFlowAlgebra
 PRIORITIES: [tissue_identity, developmental_origin, developmental_stage, cell_composition, lineage, tissue_architecture, extracellular_matrix, signalling, mechanics, maturation, evidence_provenance, confidence]
 REQUIREMENTS: [preserve_species_context, preserve_developmental_stage, preserve_tissue_and_anatomical_region, preserve_cell_and_spatial_context, distinguish_tissue_specification_from_determination_and_differentiation, distinguish_germ_layer_origin_from_mature_tissue_identity, distinguish_growth_from_maturation, distinguish_vasculogenesis_from_angiogenesis, distinguish_repair_from_regeneration, distinguish_correlation_from_causation, preserve_uncertainty]
}

VALIDATE {
 REQUIRE TissueDevelopment
 REQUIRE Tissue
 REQUIRE TissuePrimordium
 REQUIRE TissueLineage
 REQUIRE TissueSpecification
 REQUIRE TissueDifferentiation
 REQUIRE ExtracellularMatrix
 REQUIRE TissueMorphogenesis
 REQUIRE TissueInduction
 REQUIRE TissueGeneRegulatoryNetwork
 REQUIRE TissueGrowth
 REQUIRE TissueMaturation
 REQUIRE TissueVascularization
 REQUIRE Innervation
 REQUIRE Evidence
 REQUIRE CONFIDENCE
 REQUIRE SEMANTIC_EQUIVALENCE
 REQUIRE UPDATE_MODEL
 REQUIRE AI_CONSUMPTION

 ASSERT TissueSpecification != TissueDetermination
 ASSERT TissueDetermination != TissueDifferentiation
 ASSERT germ_layer_origin != mature_tissue_identity
 ASSERT TissueGrowth != TissueMaturation
 ASSERT Vasculogenesis != Angiogenesis
 ASSERT TissueRepair != TissueRegeneration
 ASSERT correlation != causal_tissue_role
}

FLOW_HASH {
 ALGORITHM: SHA-256
 INPUT: canonicalize(entities, relations, processes, rules, semantic_equivalence, confidence_model, update_model, ai_consumption)
 PURPOSE: integrity_and_version_tracking
}

END flow "TissueDevelopmentOntology"