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axon guidance

vr.tr.axon-guidance · thing-q2034716

Let an agent explain axon guidance, relay growth cone biology, guidance cues, model systems and medical relevance from developmental neuroscience sources, describe the named systems, and distinguish axon guidance from neuronal migration, synaptogenesis, axon regeneration and dendrite development.

Thing Registry Activities and processes ACT.PRC
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Understand What axon guidance is.

Definition

Definition.

Definition

Definition.

  1. What is axon guidance, and how does it differ from neuronal migration, synaptogenesis, regeneration and dendrite development? definition
  2. Is the question about basic neuroscience, a disorder or regeneration research? boundary

Systems

Named systems.

Systems

Systems.

  1. What are commissural, retinal ganglion, motor neuron and olfactory axon guidance and axial guidance? definition
  2. Which entry fits the specific system? action
Biology Mechanisms.

Growth cone

Growth cones.

Growth cone

Growth cone.

  1. How does the growth cone sense cues and steer? provenance
  2. Which references are standard? provenance

Cues

Guidance cues.

Cues

Cues.

  1. How do netrins, slits, semaphorins and ephrins attract or repel axons? provenance
  2. Which sources are cited? provenance
Models Model systems.

Midline

Midline crossing.

Midline

Midline.

  1. How do commissural axons decide to cross the midline once? provenance
  2. Which entry fits Robo receptor? action

Visual system

Retinotectal map.

Visual system

Visual system.

  1. How do retinal axons form topographic maps? provenance
  2. Which entry fits chemoaffinity hypothesis? action
Context Medicine.

Disorders

Guidance disorders.

Disorders

Disorders.

  1. Which developmental conditions have been linked to guidance genes, with evidence attributed? provenance
  2. Is the presentation neutral and attributed? boundary

Regeneration

Regeneration research.

Regeneration

Regeneration.

  1. How is guidance research applied to spinal cord repair, with limits noted? provenance
  2. Which entry fits spinal cord injury research? action

Classifiers Filled

Family
Thing Registry
Category
Activities and processes
Entry kind
thing
Plane
ACT
Domain
ACT.PRC
Other names and narrower kinds
motor neuron axon guidance, commissural neuron axon guidance, retinal ganglion cell axon guidance, dorsal/ventral axon guidance, anterior/posterior axon guidance, olfactory bulb axon guidance, sensory neuron axon guidance, corticospinal neuron axon guidance, corticospinal neuron axon guidance through spinal cord, dopaminergic neuron axon guidance, serotonergic neuron axon guidance, photoreceptor cell axon guidance

What it is Filled

The process by which developing nerve cell axons navigate to their correct targets, steered by a growth cone at the axon tip that responds to attractive and repulsive guidance cues such as netrins, slits, semaphorins and ephrins, acting at short and long range, as studied in systems the registry aliases name, including commissural neuron axons crossing the midline of the spinal cord, retinal ganglion cell axons forming the optic chiasm and mapping to the brain, motor neuron axons reaching muscles, olfactory axons converging in the olfactory bulb, and dorsal-ventral and anterior-posterior guidance along body axes; errors in axon guidance are linked to some developmental disorders, and guidance molecules are studied for nerve regeneration.

Why it exists Filled

Let an agent explain axon guidance, relay growth cone biology, guidance cues, model systems and medical relevance from developmental neuroscience sources, describe the named systems, and distinguish axon guidance from neuronal migration, synaptogenesis, axon regeneration and dendrite development.

Distinguishing features Filled

  • Growth cone steering
  • Attractive and repulsive cues
  • Midline crossing decisions
  • Topographic maps

What robots and AI may and may not do Filled

Must not

  • Present findings in animal models as proven treatments for people.
  • Promote unproven therapies for nerve injury or developmental disorders.
  • Share research data on human tissue without the donors' consent and ethics approval.

Only with a human decision

  • Moving laboratory findings into clinical trials.

May

  • Explain axon guidance, growth cones and guidance cues such as netrins and semaphorins.
  • Summarise research findings with their model organism and limits.

Moral aspects Filled

  • Hope for nerve repair makes patients vulnerable to overstated claims.
  • Research on embryos and animals raises welfare and consent questions.

Who is affected

  • Patients with nerve injury
  • Research animals
  • Tissue donors

Owners Filled

Steward

Nobody owns the process; research institutions answer for the studies they run.

Links to other meta-models Filled

parent

  • Q21433477 - registry parent class

related

  • neuron projection guidance - in registry terms
  • growth cone
  • netrin
  • neuronal migration

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.axon-guidance
  • Wikidata: Q2034716 (https://www.wikidata.org/wiki/Q2034716)

Direct properties not applicable Not applicable

  • growth cone described: Santiago Ramon y Cajal, 1890 note
  • netrin identified: 1994 year
  • main cue families: netrins, slits, semaphorins, ephrins list

Plane ACT: no invented physical properties.

Recognition optional Filled

  • Navigation of growing axons
  • Motor neuron axon guidance, commissural neuron axon guidance, retinal ganglion cell axon guidance, dorsal-ventral axon guidance, anterior-posterior axon guidance, olfactory bulb axon guidance
  • Neuronal migration moves cell bodies; synaptogenesis forms synapses; regeneration regrows injured axons; dendrite development shapes inputs
  • Not visible without microscopy; seen as growth cones and labelled axon paths.

Capabilities and actions required Filled

  • explain growth cones and cues
  • relay model systems
  • describe named systems
  • relay medical relevance with attribution

Hazards and failure modes required Filled

  • Overstating links to disorders
  • Oversimplifying cue functions
  • Confusing development and regeneration

Standards and interfaces required Filled

  • Animal research ethics rules for developmental studies

Context of use required Filled

  • Wiring the developing nervous system.
  • midline guidance
  • topographic mapping
  • motor axon pathfinding
  • olfactory convergence
  • axial guidance

Sources Filled

  1. Wikidata item Q2034716: axon guidance - identity and sense of the item
  2. Wikipedia: Axon guidance - general description of the item

Open questions

  • Should each model system be a separate entry?
  • How should Gene Ontology terms be linked?
  • How should disease associations be presented?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q2034716/spec.json