Glial cell line-derived neurotrophic factor

Source: Wikipedia, the free encyclopedia.
GDNF
Gene ontology
Molecular function
Cellular component
Biological process
Sources:Amigo / QuickGO
Ensembl
UniProt
RefSeq (mRNA)

NM_010275
NM_001301332
NM_001301333
NM_001301357

RefSeq (protein)

NP_000505
NP_001177397
NP_001177398
NP_001265027
NP_954701

NP_001288261
NP_001288262
NP_001288286
NP_034405

Location (UCSC)Chr 5: 37.81 – 37.84 MbChr 15: 7.84 – 7.87 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Glial cell line-derived neurotrophic factor (GDNF) is a

GFRα1
. It is also responsible for the determination of spermatogonia into primary spermatocytes, i.e. it is received by RET proto-oncogene (RET) and by forming gradient with SCF it divides the spermatogonia into two cells. As the result there is retention of spermatogonia and formation of spermatocyte.[7][full citation needed]

GDNF family of ligands (GFL)

GDNF was discovered in 1991,[8] and is the first member of the GDNF family of ligands (GFL) found.

Function

GDNF is highly distributed throughout both the peripheral and central nervous system. It can be secreted by

motor neurons, and skeletal muscle during the development and growth of neurons and other peripheral cells.[9]

The GDNF gene encodes a highly conserved

GDNF has the ability to activate the ERK-1 and ERK-2 isoforms of MAP kinase in sympathetic neurons as well as P13K/AKT pathways via activation of its

receptor tyrosine kinases.[11][12] It can also activate Src-family kinases through its GFRα1 receptor.[13]

The most prominent feature of GDNF is its ability to support the survival of dopaminergic

motor neurons.[citation needed] It prevents apoptosis in motor neurons during development, decreases the overall loss of neurons during development, rescues cells from axotomy-induced death, and prevents chronic degeneration.[9]

These neuronal populations die in the course of

alcohol consumption.[15] GDNF also promotes hair follicle formation and cutaneous wound healing by targeting resident hair follicle stem cells (BSCs) in the bulge compartment.[16]

Structure

GDNF has a structure that is similar to

GFRα1 receptor. The C-terminus forms a loop out of the interactions between cysteines Cys131, Cy133, Cys68, and Cys 72.[9]

Interactions

Glial cell line-derived neurotrophic factor has been shown to

GDNF family ligand members also have the ability to be activated through the neural cell adhesion molecule (NCAM). GDNF can associate with NCAM through its GFRα1 GPI-anchor. The association between GDNF and NCAM results in the activation of cytoplasmic protein tyrosine kinases Fyn and FAK.[18]

Potential as therapeutics

GDNF has been investigated as a treatment for Parkinson's disease, though early research has not shown a significant effect.[8][19] Vitamin D potently induces GDNF expression.[20]

In 2012, the University of Bristol began a five-year clinical trial on Parkinson's sufferers, in which surgeons introduced a port into the skull of each of the 41 participants through which the drug could be delivered, in order to enable it to reach the damaged cells directly.[21] The results of the double-blind trial, where half the participants were randomly assigned to receive regular infusions of GDNF and the other half placebo infusions, did not show a statistically significant difference between the active treatment group and those who received placebo, but did confirm the effects on damaged brain cells.[22] The trial was funded by Parkinson's UK with support from The Cure Parkinson's Trust, whose founder, Tom Isaacs, was one of the participants.[23]

Neuropsychopharmacology

Administration of the African hallucinogen ibogaine potently increases GDNF expression in the ventral tegmental area, which is the mechanism behind the alkaloid's anti-addictive effect.[24] Rodent models for a non-psychedelic analogue of this compound show promise in promoting GDNF expression without the hallucinogenic or cardiotoxic effects well documented for ibogaine.[25]

There is evidence, that Gdnf is an alcohol-responsive

Nucleus Accumbens as well as DNA methylation of the Gdnf gene in rats.[27]

References

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000168621Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000022144Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. PMID 8493557
    .
  6. ^ a b "Entrez Gene: GDNF glial cell derived neurotrophic factor".
  7. ^ Scott F. Gilbert
  8. ^
    PMID 20725015
    .
  9. ^ .
  10. .
  11. ^ .
  12. ^ .
  13. .
  14. .
  15. .
  16. .
  17. .
  18. .
  19. ^ "Intermittent Bilateral Intraputamenal Treatment with GDNF". The Michael J. Fox Foundation for Parkinson's Research | Parkinson's Disease.
  20. . Vitamin D is a potent inducer of endogenous GDNF. The most prominent feature of GDNF is its ability to support the survival of dopaminergic neurons.
  21. ^ "The radical drug trial hoping for a miracle Parkinson's cure". BBC News. Retrieved 10 March 2019.
  22. ^ "GDNF clinical trial offers hope of restoring brain cells damaged in Parkinson's". Parkinsons UK. 27 February 2019. Retrieved 10 March 2019.
  23. ^ "Pioneering trial offers hope for restoring brain cells damaged in Parkinson's". University of Bristol. 2019-02-19.
  24. PMID 15659598
    .
  25. .
  26. .
  27. .

Further reading

External links