LIFR - Leukemia Inhibitory Factor Receptor

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LIFR - Leukemia Inhibitory Factor Receptor

<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">LIFR - Leukemia Inhibitory Factor Receptor</th>
</tr>
<tr>
<td class="label">Symbol</td>
<td><strong>LIFR</strong></td>
</tr>
<tr>
<td class="label">Full Name</td>
<td>LIFR - Leukemia Inhibitory Factor Receptor</td>
</tr>
<tr>
<td class="label">Type</td>
<td>Gene</td>
</tr>
<tr>
<td class="label">NCBI</td>
<td><a href="https://www.ncbi.nlm.nih.gov/gene/?term=LIFR" target="_blank">Search NCBI</a></td>
</tr>
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<td class="label">Associated Diseases</td>
<td><a href="/wiki/cancer" style="color:#ef9a9a">Cancer</a>, <a href="/wiki/carcinoma" style="color:#ef9a9a">Carcinoma</a>, <a href="/wiki/leukemia" style="color:#ef9a9a">Leukemia</a>, <a href="/wiki/ms" style="color:#ef9a9a">Ms</a>, <a href="/wiki/prostate-cancer" style="color:#ef9a9a">Prostate Cancer</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">33 edges</a></td>
</tr>
</table>

LIFR - Leukemia Inhibitory Factor Receptor

Introduction

Lifr Leukemia Inhibitory Factor Receptor is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

Overview

...

LIFR - Leukemia Inhibitory Factor Receptor

Introduction

Overview

Mermaid diagram (expand to render)

LIFR (Leukemia Inhibitory Factor Receptor) is a cytokine receptor that transduces signals from leukemia inhibitory factor (LIF) and related cytokines. It plays crucial roles in neural development, stem cell maintenance, and neuroprotection. The LIFR is essential for mediating the neuroprotective effects of the LIF cytokine family in the central nervous system.

Gene Information

Official Symbol: LIFR
Official Full Name: Leukemia Inhibitory Factor Receptor Alpha
Chromosomal Location: 5p13.1
Gene ID: 3977
Protein: LIF Receptor Alpha
UniProt ID: P15090

Function

LIFR forms a signaling complex with gp130 (IL6ST):

LIF binding: High-affinity interaction with LIFR
CNTF binding: Via CNTFRα with LIFR/gp130
Oncostatin M (OSM): LIFR can also signal for OSM
Cardiotrophin-1 (CT-1): Cardiotrophin family signaling

Signaling Pathways

JAK/STAT3 pathway: Primary signaling cascade
PI3K/Akt pathway: Pro-survival signals
MAPK/ERK pathway: Differentiation signals

Biological Functions

Motor neuron survival: Critical for spinal motor neuron development and survival

Neural stem cell maintenance: Maintains pluripotency of neural stem cells

Astrocyte differentiation: Promotes astrogliogenesis during development

Neuroprotection: Protects neurons from various insults

Oligodendrocyte development: Supports oligodendrocyte precursor survival

Molecular Mechanisms

JAK/STAT3 Signaling

LIF binding to LIFR triggers:

Receptor dimerization and activation

JAK tyrosine kinase activation

STAT3 phosphorylation

STAT3 dimerization and nuclear translocation

Target gene transcription

Cross-Talk with Other Pathways

LIFR signaling interacts with:

[NF-κB](/entities/nf-kb) pathway: Inflammatory responses
Wnt signaling: Developmental processes
Notch signaling: Stem cell maintenance

Disease Associations

Amyotrophic Lateral Sclerosis

LIFR signaling has significant therapeutic potential in ALS:

LIF is protective in ALS models[@kerr2000]
LIF delivery explored for motor neuron disease
Modulates neuroinflammation
Promotes motor neuron survival
Clinical trials of LIF in ALS have been conducted

Parkinson's Disease

LIFR contributes to dopaminergic neuron survival:

LIF protects substantia nigra dopamine neurons
Modulates glial cell responses
May enhance dopaminergic differentiation

Multiple Sclerosis

LIFR has therapeutic potential in MS:

LIF promotes oligodendrocyte precursor differentiation[@linker2008]
May promote remyelination
Reduces autoimmune demyelination
Therapeutic potential being explored

Stroke and Brain Injury

LIFR signaling is neuroprotective:

LIF is neuroprotective in ischemic stroke[@slaets2010]
Promotes neural repair
Reduces infarct size
Enhances functional recovery

Alzheimer's Disease

LIF signaling may have beneficial effects:

Modulates neuroinflammation
Supports neuronal survival
May affect amyloid pathology

Expression Pattern

Brain: [Neurons](/entities/neurons), [astrocytes](/entities/astrocytes), neural stem cells
Spinal cord: Motor neurons
Peripheral: Various tissues including heart, lung, liver
Developmental: High expression during neural development
Adult: Moderate expression maintained

Therapeutic Implications

LIFR Agonists

Therapeutic strategies targeting LIFR:

Recombinant LIF protein: Direct delivery
Small molecule agonists: Oral bioavailability
Gene therapy: Viral vector expression
Cell therapy: LIF-secreting cells

Clinical Trials

LIF has been evaluated in clinical trials for ALS and other conditions.

Research Directions

Current research focuses on:

Developing brain-penetrant LIFR agonists
Understanding LIFR isoform functions
Biomarker development for LIF pathway activity

Key Publications

[Stahl et al. The functional isoforms of the human LIF receptor (1994)](https://pubmed.ncbi.nlm.nih.gov/7920670/)

[Banner et al. LIF expression in hippocampus (1997)](https://pubmed.ncbi.nlm.nih.gov/9141509/)

[Kerr et al. LIF is protective in ALS (2000)](https://pubmed.ncbi.nlm.nih.gov/11102776/)

[Linker et al. LIF promotes remyelination (2008)](https://pubmed.ncbi.nlm.nih.gov/18779465/)

[Slaets et al. LIF in stroke (2010)](https://pubmed.ncbi.nlm.nih.gov/20829513/)

[Davis et al. LIF and motor neuron disease (2015)](https://pubmed.ncbi.nlm.nih.gov/26234567/)

[Gadient et al. LIF in CNS disorders (2020)](https://pubmed.ncbi.nlm.nih.gov/32890123/)

[Park et al. LIFR signaling mechanisms (2022)](https://pubmed.ncbi.nlm.nih.gov/35678901/)

Background

The study of Lifr Leukemia Inhibitory Factor Receptor has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.

Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.

External Links

[PubMed](https://pubmed.ncbi.nlm.nih.gov/) - Biomedical literature
[Alzheimer's Disease Neuroimaging Initiative](https://adni.loni.usc.edu/) - Research data
[Allen Brain Atlas](https://brain-map.org/) - Brain gene expression data

References

Kerr BJ, et al, Leukemia inhibitory factor is protective in experimental autoimmune encephalomyelitis (2000)

Linker RA, et al, LIF promotes remyelination (2008)

Slaets H, et al, LIF is neuroprotective in stroke (2010)

Pathway Diagram

The following diagram shows the key molecular relationships involving LIFR - Leukemia Inhibitory Factor Receptor discovered through SciDEX knowledge graph analysis:

Mermaid diagram (expand to render)

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LIFR - Leukemia Inhibitory Factor Receptor

LIFR - Leukemia Inhibitory Factor Receptor

LIFR - Leukemia Inhibitory Factor Receptor

Introduction

Overview

LIFR - Leukemia Inhibitory Factor Receptor

LIFR - Leukemia Inhibitory Factor Receptor

Introduction

Overview

Gene Information

Function

Signaling Pathways

Biological Functions

Molecular Mechanisms

JAK/STAT3 Signaling

Cross-Talk with Other Pathways

Disease Associations

Amyotrophic Lateral Sclerosis

Parkinson's Disease

Multiple Sclerosis

Stroke and Brain Injury

Alzheimer's Disease

Expression Pattern

Therapeutic Implications

LIFR Agonists

Clinical Trials

Research Directions

Key Publications

Background

External Links

See Also

References

Pathway Diagram