TY - JOUR
T1 - Astrocyte-oligodendrocyte interaction regulates central nervous system regeneration
AU - Molina-Gonzalez, Irene
AU - Holloway, Rebecca K.
AU - Jiwaji, Zoeb
AU - Dando, Owen
AU - Kent, Sarah A.
AU - Emelianova, Katie
AU - Lloyd, Amy F.
AU - Forbes, Lindsey H.
AU - Mahmood, Ayisha
AU - Skripuletz, Thomas
AU - Gudi, Viktoria
AU - Febery, James A.
AU - Johnson, Jeffrey A.
AU - Fowler, Jill H.
AU - Kuhlmann, Tanja
AU - Williams, Anna
AU - Chandran, Siddharthan
AU - Stangel, Martin
AU - Howden, Andrew J. M.
AU - Hardingham, Giles E.
AU - Miron, Veronique E.
N1 - Funding Information:
This work was funded by a studentship from the United Kingdom Multiple Sclerosis Society (to V.E.M.; grant no. 54), a Medical Research Council and United Kingdom Multiple Sclerosis Society Career Development Award (to V.E.M.; grant no. MR/M020827/1), a Medical Research Council Senior Non-Clinical Fellowship (to V.E.M.; grant no. MRC/V031260/1), funds from the Medical Research Council Centre for Reproductive Health (grant no. MR/N02256/1), and the John David Eaton Chair in Multiple Sclerosis Research from St. Michael’s Hospital Foundation. The cuprizone studies were supported by the German Research Foundation (T.K.; grant no. SFBTR128-B7) and the Hannover Medical School (Hochschulinterne Leistungsförderung; M.S.).
Copyright:
© 2023. The Author(s).
PY - 2023/6/8
Y1 - 2023/6/8
N2 - Failed regeneration of myelin around neuronal axons following central nervous system damage contributes to nerve dysfunction and clinical decline in various neurological conditions, for which there is an unmet therapeutic demand. Here, we show that interaction between glial cells - astrocytes and mature myelin-forming oligodendrocytes - is a determinant of remyelination. Using in vivo/ ex vivo/ in vitro rodent models, unbiased RNA sequencing, functional manipulation, and human brain lesion analyses, we discover that astrocytes support the survival of regenerating oligodendrocytes, via downregulation of the Nrf2 pathway associated with increased astrocytic cholesterol biosynthesis pathway activation. Remyelination fails following sustained astrocytic Nrf2 activation in focally-lesioned male mice yet is restored by either cholesterol biosynthesis/efflux stimulation, or Nrf2 inhibition using the existing therapeutic Luteolin. We identify that astrocyte-oligodendrocyte interaction regulates remyelination, and reveal a drug strategy for central nervous system regeneration centred on targeting this interaction.
AB - Failed regeneration of myelin around neuronal axons following central nervous system damage contributes to nerve dysfunction and clinical decline in various neurological conditions, for which there is an unmet therapeutic demand. Here, we show that interaction between glial cells - astrocytes and mature myelin-forming oligodendrocytes - is a determinant of remyelination. Using in vivo/ ex vivo/ in vitro rodent models, unbiased RNA sequencing, functional manipulation, and human brain lesion analyses, we discover that astrocytes support the survival of regenerating oligodendrocytes, via downregulation of the Nrf2 pathway associated with increased astrocytic cholesterol biosynthesis pathway activation. Remyelination fails following sustained astrocytic Nrf2 activation in focally-lesioned male mice yet is restored by either cholesterol biosynthesis/efflux stimulation, or Nrf2 inhibition using the existing therapeutic Luteolin. We identify that astrocyte-oligodendrocyte interaction regulates remyelination, and reveal a drug strategy for central nervous system regeneration centred on targeting this interaction.
KW - Male
KW - Mice
KW - Animals
KW - Humans
KW - Astrocytes/metabolism
KW - NF-E2-Related Factor 2/genetics
KW - Central Nervous System/metabolism
KW - Oligodendroglia/metabolism
KW - Myelin Sheath/metabolism
KW - Nerve Regeneration/physiology
KW - Cholesterol/metabolism
UR - http://www.scopus.com/inward/record.url?scp=85161452117&partnerID=8YFLogxK
U2 - 10.1038/s41467-023-39046-8
DO - 10.1038/s41467-023-39046-8
M3 - Article
C2 - 37291151
SN - 2041-1723
VL - 14
JO - Nature Communications
JF - Nature Communications
M1 - 3372
ER -