Bioasis Announces Publication of CNS Delivery of siRNA via xB³ ™ Platform Technology
30 March 2021 - 7:05AM
BIOASIS TECHNOLOGIES INC. (TSXV:BTI; OTCQB:BIOAF),
(the “Company” or “Bioasis”), a pre-clinical, research-stage
biopharmaceutical company developing its proprietary xB3 ™ platform
technology for the delivery of therapeutics across the blood-brain
barrier (“BBB”) and the treatment of central nervous system (“CNS”)
disorders in areas of high unmet medical need, including brain
cancers and neurodegenerative diseases, today announced the
publication of research validating the ability of the company’s xB3
™ platform to efficiently deliver siRNA across the blood-brain
barrier to the central nervous system in therapeutically relevant
doses.
Scientists from Bioasis and Dr. Wilfred A. Jefferies evaluated
Bioasis’ xB3 ™ platform technology by investigating its application
to siRNA brain delivery; this was followed by an efficacy study in
an ischemic stroke model induced by transient middle cerebral
artery occlusion. This research shows that the xB3 ™ platform can
act as a delivery vector to facilitate BBB translocation of siRNA;
where the siRNA targeting NOX4, a gene thought to be responsible
for oxidative stress in ischemic stroke, can elicit effective
therapeutic knockdown of a gene in the CNS. The successful delivery
was demonstrated by reduced stroke damage in the brain and improved
neurological function. The research conducted by Eyford, et al., “A
Nanomule Peptide Carrier Delivers siRNA Across the Intact
Blood-Brain Barrier to Attenuate Ischemic Stroke,” was published in
the Frontiers in Molecular Biosciences.
The data presented in this publication provide evidence for the
utility of xB3 ™ peptide (previously known as MTfpep) as a platform
technology for delivery of recombinant and chemically conjugated
drug across the BBB. This study demonstrates both siRNA-carrier
delivery and therapeutic efficacy in CNS disease model where the
BBB remains intact and thus offers new avenues for potential siRNA
focused treatments in variety of neuropathologies that are
currently refractory to existing therapies.
Dr. Wilfred A. Jefferies, Professor at University of British
Columbia, stated, “This study demonstrates for the first time, the
translocation of a small peptide, nanomule, across the intact blood
brain barrier carrying a payload sufficient to modify a disease in
the central nervous system, in this case an siRNA that ameliorates
ischemic stroke. The implications of this discovery are wide
ranging, and this platform may provide a general method to
intervene in diseases of the brain."
“The results from this research collaboration further validates
the utility of our xB3 ™ platform technology to achieve delivery of
therapeutic compounds including siRNA across the BBB at levels that
may help treat a variety of CNS diseases. This data is consistent
with the previous studies where our technology successfully
delivered antibodies and enzymes across the BBB with demonstrated
efficacy in both the brain and the periphery in settings as diverse
as brain cancers, neuropathic pain and lysosomal storage disorders”
said Dr. Deborah Rathjen, Executive Chair of the Board,
Bioasis.
On behalf of the Board of Directors of Bioasis
Technologies Inc.
Deborah Rathjen, Ph.D.Executive Chair of the
Boarddeborah@bioasis.us+1.203.533.7082
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About Bioasis
Bioasis Technologies Inc. is a biopharmaceutical
company developing the xB3 ™ platform, a proprietary technology for
the delivery of therapeutics across the blood brain barrier and the
treatment of CNS disorders in areas of high unmet medical need,
including brain cancers and neurodegenerative diseases. The
delivery of therapeutics across the blood brain barrier represents
the final frontier in treating neurological disorders. The in-house
development programs at Bioasis are designed to develop symptomatic
and disease-modifying treatments for brain-related diseases and
disorders. For more information about the Company, please visit
www.bioasis.us.
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