CEL-SCI Collaborators Present Data Suggesting That LEAPS Technology Has Ability to Modify Immune Response
09 Novembre 2009 - 3:40PM
PR Newswire (US)
STUDIES SUPPORTIVE OF ROLE THAT TECHNOLOGY CAN PLAY IN TREATMENT OF
H1N1 HOSPITALIZED PATIENTS VIENNA, Va., Nov. 9
/PRNewswire-FirstCall/ -- CEL-SCI Corporation (NYSE Amex: CVM)
announced today that Dr. Kenneth S. Rosenthal, Professor of
Immunology and Microbiology of Northeastern Ohio Universities
College of Medicine and Pharmacy, reported on work conducted in
collaboration with scientists at the Cleveland Clinic and CEL-SCI
on CEL-SCI's LEAPS vaccine technology. The data was presented at
the 7th GTCbio Vaccine: "All Things Considered" Conference in
Crystal City, Virginia. Working with LEAPS vaccines for herpes
simplex virus, HIV, rheumatoid arthritis and most recently, H1N1
influenza, the scientists' studies show that LEAPS peptide
immunogens can convert precursor cells from mouse or humans to
become dendritic cells (DC), the cell that directs the subsequent
immune response. These DCs produce interleukin 12 (IL12p70), but
without production of the pro-inflammatory cytokines that promote
symptoms of a cytokine storm, such as tumor necrosis factor alpha
or interleukin 1. Immunization with a LEAPS-immunogen for herpes
simplex virus activates a protective T cell immune response against
the virus in mice while a LEAPS-immunogen for treatment of
rheumatoid arthritis (CEL-2000) reduces the production of the
pro-inflammatory cytokines to block the progression of disease in
mouse models of rheumatoid arthritis. Dr. Rosenthal commented,
"LEAPS immunogens are unique in their ability to simultaneously
produce and activate a specific type of dendritic cell that can
turn on or modulate antigen specific T cell responses without
generating the pro-inflammatory cytokines associated with cytokine
storm. The ability to activate the desired immune response should
make LEAPS immunogens inherently safe vaccines. Finding of similar
results for mouse and human cells in our laboratory studies adds
confidence that the effects in the body will be the same in mice
and man. " Geert Kersten, CEO of CEL-SCI Corporation said: "We feel
that this new data is encouraging and supportive of our H1N1
treatment for hospitalized patients where the goal is to produce a
specific anti H1N1 immune response that will steer the immune
system towards protection and away from a cytokine storm which may
be responsible for many patients' deaths." CEL-SCI's L.E.A.P.S.(TM)
(Ligand Epitope Antigen Presentation System) technology allows the
Company to direct an immune response against specific disease
epitopes. In the case of CEL-SCI's investigational LEAPS-H1N1
treatment, this involves non-changing regions of H1N1 Pandemic Flu,
Avian Flu (H5N1), and the Spanish Flu. This is intended to enable
stimulation of the specifically-needed immune responses, while
avoiding the administration of regions of H1N1, and other viruses,
which may exacerbate the problem of cytokine storm, which CEL-SCI
scientists believe may be involved in the death of some H1N1
patients. The concept behind the L.E.A.P.S. technology is to
directly mimic cell/cell interactions on the T-cell surface with
synthetic peptides. The L.E.A.P.S. constructs containing the
antigenic disease epitope linked to a Immune / T-cell binding
ligand (I/TCBL) can be manufactured by peptide synthesis or by
covalently linking the two peptides. Depending upon the type of
L.E.A.P.S. construct and I/TCBL used, CEL-SCI is able to direct the
outcome of the immune response towards the development of T-cell
function with primarily effector T-cell functions (T Lymphocyte;
helper/effector T lymphocyte, type 1 or 2 [Th1 or Th2], cytotoxic
[Tc] or suppressor [Ts]). Therefore, it would appear that the
L.E.A.P.S. construct represents a chimeric peptide with
bi-functional behavior. CEL-SCI Corporation is developing products
that empower immune defenses. Its lead product is Multikine® which
is being readied for a global Phase III trial in advanced primary
head and neck cancer. CEL-SCI is also developing a treatment for
hospitalized H1N1 patients using it's L.E.A.P.S. technology
platform, and expects to soon finish the validation of it's
state-of-the-art manufacturing facility in Maryland. For more
information, please visit http://www.cel-sci.com/ When used in this
report, the words "intends," "believes," "anticipated" and
"expects" and similar expressions are intended to identify
forward-looking statements. Such statements are subject to risks
and uncertainties which could cause actual results to differ
materially from those projected. Factors that could cause or
contribute to such differences include, lack of regulatory
clearance to proceed with clinical trials, an inability to
duplicate the clinical results demonstrated in clinical studies
that have been completed or that are initiated in the future,
timely development of any potential products that can be shown to
be safe and effective, unwillingness of regulatory authorities to
engage in further regulatory dialogue, receiving necessary
regulatory approvals, difficulties in manufacturing any of the
Company's potential products, inability to raise the necessary
capital, and the risk factors set forth from time to time in
CEL-SCI Corporation's SEC filings, including but not limited to its
report on Form 10- K/A for the year ended September 30, 2008. The
Company undertakes no obligation to publicly release the result of
any revision to these forward-looking statements which may be made
to reflect the events or circumstances after the date hereof or to
reflect the occurrence of unanticipated events. DATASOURCE: CEL-SCI
Corporation CONTACT: Gavin de Windt, CEL-SCI Corporation,
+1-703-506-9460 Web Site: http://www.cel-sci.com/
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