Acetylcholinesterase-derived peptides and uses thereof

a technology of acetylcholinesterase and peptides, applied in the field of stem cell survival and expansion, can solve the problems of limited molecular pathway(s), incomplete understanding of the mechanisms responsible for initiating this adjustment, and limited capacity to stimulate proliferation
US20070065882A1Inactive Publication Date: 2007-03-22SOREQ HERMONA +4
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
SOREQ HERMONA
Publication Date
2007-03-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a cell growth and / or differentiation regulatory peptide comprising a sequence of about 9 to about 150 amino acids derived from acetylcholinesterase amino acid sequence, preferably from the C-terminal region of acetylcholinesterase. The invention also relates to pharmaceutical compositions comprising the peptides, particularly for use in promoting survival of stem cells, promoting differentiation of stem cells, promoting growth of stem cells and / or promoting the growth-enhancing effect of a growth factor on stem cells, alone, or in combination with other growth factors. Of particular interest is the use of the peptides in the treatment of thrombocytopenia, post-irradiation conditions, post-chemotherapy conditions, or conditions following massive blood loss and promotion of neural progenitors in use for cell therapies aimed at restoring neural functions in diseased individuals. Further, the invention relates to antibodies against the peptides, inter alia for diagnostic use, for example, the diagnosis of stress-induced male infertility. The invention also relates to in vitro and in vivo methods for screening of drugs that affect the central nervous system, and are potential modulators of interactions between the “readthrough” form of acetylcholinesterase, AChE-R, the intracellular receptor RACK1 and the kinase PKC.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is a continuation-in-part (CIP) of U.S. patent application Ser. No. 09 / 998,042, filed Nov. 30, 2001, which is a continuation-in-part of PCT international application No. PCT / IL00 / 00311, filed May 31, 2000, which claims priority of Israeli Patent Application No. 130224, filed May 31, 1999 and Israeli Patent Application No. 131707, filed Sep. 2, 1999, incorporated herein by reference.STATEMENT AS TO FEDERALLY SPONSORED RESEARCH

[0002] This work was supported by the US Army Medical Research and Material Command DAMD 17-99-9547 (July 1999-August 2004) and the Defense Advance Research Project Agency DARPA N66001-01-C-8015 (May 2001-May 2004). The US Government has certain rights in this invention.FIELD OF THE INVENTION

[0003] The invention is directed to the field of stem cell survival and expansion. Specifically, the invention is directed at the stem cell survival and expansion effects of peptides derived from acetylcholine...

Claims

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