GeNeuro: New Data Presented at the ECTRIMS 2025 Congress in Copenhagen Shows That Temelimab Rescues the Neurodegenerative Effects of HERV-W in an MS Model
September 19 2024 - 11:30AM
Business Wire
Regulatory News:
GeNeuro (Euronext Paris: CH0308403085 - GNRO), a
biopharmaceutical company focused on addressing the factors driving
the progression of neurodegenerative and autoimmune diseases, such
as multiple sclerosis (MS), today announced that new findings on
the anti-neurodegenerative effect of Temelimab in an MS model were
presented as a poster at the European Committee for Treatment and
Research in Multiple Sclerosis (ECTRIMS) 2024 Congress in
Copenhagen, Denmark. The presentation was delivered by Dr. Joel
Gruchot from Prof. Patrick Küry’s group at the Department of
Neurology, Heinrich-Heine-University Düsseldorf, Germany, in
collaboration with the Department of Neurology at the University of
Bern, Switzerland, and the Institute of Pharmacology and
Toxicology, University of Zürich, Switzerland.
The new data presented now evidence that Temelimab rescues
HERV-W ENV mediated effects in mice expressing the envelope protein
HERV-W ENV. When transgenic animals are treated with an anti HERV-W
ENV antibody (mAb ENV01, the mouse equivalent of Temelimab),
demyelination, neurodegeneration as well as microglial and
astroglial polarization are rescued. These treatment effects were
already observed after a single application of the compound. Anti
HERV-W ENV therapy is therefore suggested to address consequences
of smoldering neurodegenerative processes.
These results build on previous studies using a transgenic model
of mice expressing HERV-W ENV which showed that HERV-W ENV
expression is associated with and triggers smoldering
neurodegenerative pathological mechanisms in MS. In a model of
demyelination using cuprizone, these HERV-W ENV expressing mice
show a diminished remyelination capacity affecting multiple
oligodendroglial stages. In addition, signs of HERV-W ENV dependent
axon degeneration are detected in this non-inflammatory model,
while microglia and astroglia develop neurotoxic phenotypes upon
cuprizone-mediated demyelination. This new model closely replicates
the neurodegenerative mechanisms observed in MS, which are believed
to be key drivers of long-term disability progression.
“We congratulate Prof. Patrick Küry and his team for this
exciting new data that provides the capping stone for the concept
of the anti-neurodegenerative effect of Temelimab in a MS model”,
said Jesús Martin Garcia, CEO of GeNeuro. “These results
validate the mechanism of action that explains the promising
clinical data GeNeuro has generated regarding key MRI and liquid
biomarkers of neurodegeneration in over 300 MS patients. Despite
the challenging circumstances the company is currently facing, we
remain committed to securing partnerships to continue the
development of Temelimab in MS, with a focus on addressing disease
progression—the primary unmet medical need in MS today.”
About GeNeuro GeNeuro‘s mission is to develop safe and
effective treatments against neurological disorders and autoimmune
diseases, such as multiple sclerosis, by neutralizing causal
factors encoded by HERVs, which represent 8% of human DNA. GeNeuro
is based in Geneva, Switzerland and has R&D facilities in Lyon,
France.
For more information, visit: www.geneuro.com
Disclaimer This press release contains certain forward -
looking statements and estimates concerning GeNeuro’s financial
condition, operating results, strategy, projects and future
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control. Consequently, the actual results, financial condition,
performances and/or achievements of GeNeuro or of the industry may
turn out to differ materially from the future results, performances
or achievements expressed or implied by these statements, forecasts
and estimates. Owing to these uncertainties, no representation is
made as to the correctness or fairness of these forward-looking
statements, forecasts and estimates. Furthermore, forward-looking
statements, forecasts and estimates speak only as of the date on
which they are made, and GeNeuro undertakes no obligation to update
or revise any of them, whether as a result of new information,
future events or otherwise, except as required by law.
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Contacts GeNeuro Jesús Martin-Garcia Chairman and CEO +41
22 552 48 00 investors@geneuro.com
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