WO1997031019B1 - Antipathogenic peptides and compositions comprising them - Google Patents

Antipathogenic peptides and compositions comprising them

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Publication number
WO1997031019B1
WO1997031019B1 PCT/IL1997/000066 IL9700066W WO9731019B1 WO 1997031019 B1 WO1997031019 B1 WO 1997031019B1 IL 9700066 W IL9700066 W IL 9700066W WO 9731019 B1 WO9731019 B1 WO 9731019B1
Authority
WO
WIPO (PCT)
Prior art keywords
leu
lys
amino acid
ile
ser
Prior art date
Application number
PCT/IL1997/000066
Other languages
French (fr)
Other versions
WO1997031019A2 (en
WO1997031019A3 (en
Filing date
Publication date
Priority claimed from IL11722396A external-priority patent/IL117223A0/en
Priority to JP9529954A priority Critical patent/JP2000506128A/en
Priority to AU17319/97A priority patent/AU730069B2/en
Priority to BR9707691A priority patent/BR9707691A/en
Priority to NZ331219A priority patent/NZ331219A/en
Priority to IL12573497A priority patent/IL125734A/en
Priority to EP97904561A priority patent/EP0904291A2/en
Priority to US09/125,605 priority patent/US6172038B1/en
Priority to EA199800754A priority patent/EA199800754A1/en
Application filed filed Critical
Publication of WO1997031019A2 publication Critical patent/WO1997031019A2/en
Publication of WO1997031019A3 publication Critical patent/WO1997031019A3/en
Publication of WO1997031019B1 publication Critical patent/WO1997031019B1/en
Priority to US09/367,714 priority patent/US7001983B1/en
Priority to KR1019997007477A priority patent/KR20000071187A/en
Priority to JP53645398A priority patent/JP2001512475A/en
Priority to CA002281204A priority patent/CA2281204A1/en
Priority to EP98903286A priority patent/EP0977774A1/en
Priority to AU60056/98A priority patent/AU6005698A/en
Priority to CN98804347A priority patent/CN1252808A/en
Priority to EA199900752A priority patent/EA199900752A1/en
Priority to BR9807456-3A priority patent/BR9807456A/en
Priority to PCT/IL1998/000081 priority patent/WO1998037090A1/en
Priority to IL13136898A priority patent/IL131368A0/en

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Abstract

Peptides which have a net positive charge and none or only a partial α-helix configuration were found to have a non-hemolytic selective cytolytic activity. The peptides may be derived from natural peptides such as pardaxin and mellitin and fragments thereof in which L-amino acid residues are replaced by corresponding D-amino acid residues, and cyclic derivatives of the foregoing, or are diastereomers of linear peptides composed of varying ratios of at least one positively charged amino acid and at least one hydrophobic amino acid, and in which at least one of the amino acid residues is a D-amino acid, and preferably at least one third of the sequence is composed of D-amino acid residues. Pharmaceutical compositions comprising the non-hemolytic cytolytic peptides can be used for the treatment of several diseases caused by pathogens including antibacterial, fungal, viral, mycoplasma and protozoan infections and for the treatment of cancer.

Claims

AMENDED CLAIMS
[received by the International Bureau on 1 September 1997 (01.09.97); original claims 1-32 replaced by amended claims 1-31 (6 pages)]
1. A peptide having a selective cytolytic activity manifested in that it has a cytolytic activity on pathogenic cells, being cells which are non-naturally occurring within the body including pathogenic organisms and malignant cells; and it is non-hemolytic, namely it has no cytolytic effect on red blood cells or has a cytolytic effect on red blood cells at concentrations which are substantially higher than that in which it manifests said cytolytic activity, said non-hemolytic cytolytic peptide having the following characteristics:
(a) it is derived from a non-selective cytolytic natural peptide being
(aa) a peptide comprising both L-amino acid residues and D-amino acid residues, or
(ab) a peptide comprising one or both of L-amino acid residues and D-amino acid residues, and comprising an α-helix breaker moiety;
(b) the peptide has a net positive charge which is greater than +1 ; and
(c) the peptide is amphipathic.
2. A peptide according to claim 1 , which has either (i) no α-helix structure,
(ii) a non-terminal α-helix structure of a length which is insufficient to span the width of a cell membrane, or (iii) a terminal α-helix structure which has a length which is less than half of the length ofthe α-helix structure defined under (ii).
3. A peptide according to of claim lor 2, having a selective cytolytic activity on pathogenic cells, the selectivity being manifested in that the peptide induces cytolysis of the pathogenic cells at a much lower concentration than that in which it induces cytolysis of normal, non-pathogenic cells.
4. A peptide according to any one of claims 1-3, possessing a cytolytic activity against pathogenic cells of bacteria, virus, fungi, protozoans and mycroplasma.
66 5. A peptide according to claim 4 having a cytolytic activity against bacteria.
6. A peptide according to any one of claims 1-5, comprising both D- and L-amino acid residues having a sequence such that a homogeneous peptide comprising only L- or only D-amino acid residues and having the same amino acid sequence as said peptide, has an α- helix configuration and has a broad spectrum cytolytic activity manifested on a variety of cells.
7. A peptide according to any one of claims 1 -6, which is a diastereomer derived from pardaxin or from fragments thereof and cyclic derivatives ofthe foregoing.
8. A peptide according to claim 7, in which the net positive charge greater than +1 is due to the native amino acid composition, or is attained by neutralization of free carboxyl groups or by the addition of positively charged amino acid residues and/or positively charged chemical groups.
9. A peptide according to claim 8, which is selected from a diastereomer of pardaxin or of a fragment thereof to which Lys residues have been added to the N-terminus and/or aminoethylamino groups have been added to the C-terminus.
10. A peptide according to claim 9, selected from pardaxin-derived peptides herein designated peptides 1-7, ofthe sequence:
1. Gly-Phe-Phe-Ala-Leu-Ile-Em-Lys-lle-Ile-Ser- Ser-Pro-Leu-Phe-Lys-Thr-Leu-Leu-Ser-Ala-Val- Gly-Ser-Ala-Leu-Ser-Ser-Ser-Gly-Gly-Gln-Glu-(NH-CH2-CH2-NH2)2
2. Gly-Phe-Phe-Ala-Leu-Ile-Em-Lys-Ile-Ile-Ser- Ser-Pro-Leu-Phe-Lys-Thr-L£iιdUιι-Ser-Ala-Val-NH-CH2-CH2-NH2
3. Gly-Phe-Phe-Ala-Leu-Ile-Elβ-Lys-Ile-Ile-Ser- Ser-Pro-I.eu-Phe-Lys-Thr-Leu-Leu-Ser-Ala-Val
67 4. Lys-Gly-Phe-Phe-Ala-Leu-Ile-Pro-Lys-Ile-Ile-Ser- Ser-Pro-Leu-Phe-Lys-Thr-yai=Lejι-Ser-Ala-Val-NH-CH2-CH2-NH2
5. Lys-Lys-Gly-Phe-Phe-Ala-Leu-Ile-Em-Lys-Ile-Ile-Ser- Ser-Pro-Leu-Phe-Lys-Thr-Lejι=Lejι-Ser-Ala-Val-NH-CH2-CH2-NH2
6. Lys-Lys-Gly-Phe-Phe-Ala-Leu-Ile-Em-Lys-Ile-Ile-Ser- Ser-Pro-Leu-Phe-Lys-Thr-Leu-Leu-Ser-Ala-Val
7. Gly-Phe-Phe-Ala-Leu-Ile-Em-Lys-Ile-Ile-Ser-NH-CH2-CH2-NH2
11. A peptide according to any one of claims 1- 6, which is a diastereomer derived from melittin or from fragments thereof and cyclic derivatives ofthe foregoing.
12. A peptide according to claim 1 1, selected from melittin-derived peptides herein designated peptides 18-21, ofthe sequence:
18. Gly-Ile-Gly-Ala-Yal-Leu-Lys-Val-Leu-Thr-Thr-Gly-Leu- Pro-Ala-Leu-Il£-Ser-Tφ-Ile-Lys-Arg-Lys-Arg-Gln-Gln-NH2
19. Gly-Ile-Gly-Ala-Yal-Leu-Lys- Val-Leu-Thr-Thr-Gly-Leu- Pro-Ala-Leu-Ik-Ser-Trp-Ile-Lys-Arg-Lyj-Arg-Gln-Gln-COOH
20. Gly-Ile-Gly-Ala-YalzLeu-Lys-Yal-Leu-Thr-Thr-Gly-Leu- Pro-Ala-Leu-Ik-Ser-Tφ-Ile-Lys-Arg-NH-CH2-CH2-NH2
21. Ala-VaLLeu-Lys-YaLLeu-Thr-Thr-Gly-Leu- Pro-Ala-Leu-lle:Ser-Trp-Ile-Ly^-Arg-NH-CH2-CH2-NH2
13. A non-hemolytic cytolytic peptide according to claim 1 comprising both L-amino acid residues and D-amino acid residues, having a sequence of amino acids such that a corresponding amino acid sequence comprising only L-amino acid residues is not found in nature. 68 14. A peptide according to claim 13. which has a net positive charge and no α-helix structure.
15. A non-hemolytic cytolytic peptide according to claim 13 or 14, having the following characteristics:
(a) it is a non-natural synthetic peptide composed of varying ratios of at least one hydrophobic amino acid and at least one positively charged amino acid, and in which sequence at least one ofthe amino acid residues is a D-amino acid;
(b) the peptide has a net positive charge which is greater than +1 ; and
(c) the ratio of hydrophobic to positively charged amino acids is such that the peptide is cytolytic to pathogenic cells but does not cause cytolysis of red blood cells.
16. A peptide according to claim 15, wherein the positively charged amino acid is selected from lysine, arginine and histidine, and the hydrophobic amino acid is selected from leucine, isoleucine, glycine, alanine, valine, phenylalanine, proline, tyrosine and tryptophan.
17. A peptide according to claim 16, wherein the net positive charge greater than +1 is due to the amino acid composition or to the addition of positively charged chemical groups, or which hydrophobicity may be decreased by the addition of polar amino acids such as serine, threonine, methionine, asparagine, glutamine and cysteine.
18. A peptide according to claim 17 of at least 6 amino acid residues, in which the hydrophobic amino acid is leucine, alanine or valine, and the positively charged amino acid is lysine.
19. A peptide according to claim 18, being a diastereomer of a 6-mer. 8-mer or 12- mer peptide composed of leucine and lysine, in which at least one third of the sequence is composed of D-amino acids.
69 20. A Leu/Lys diastereomer according to claim 19 selected from the peptides herein designated 23 to 29, ofthe sequence:
23. Lys-Leu-Leu-Leu-Lys-Leu-Leu-Leu -Lys-Leu-Leu-Lys-NH2
24. Lys-Leu-Leu-Leu-Lys-Leu-Lys-Leu -Lys-Leu-Leu-Lys-NH2
25. Lys-Lys-Leu-Leu-Lys-Leu-Lys-Leu -Lys-Leu-Lys-Lys-NH2
26. Lys-Leu-Leu-Leu-Lvs-Leu-Leu-Leu
Figure imgf000007_0001
27. Lys-Leu-Leu-Leu-Lys-Leu-Lys-Leu-Lys-Leu-Leu-Lys-NH2
28. Lys-Leu-Leu- Leu -Leu-Lys
29. Lys-Leu-Leu- Leu - Lys-Leu-Leu-Lys
21. A non-hemolytic cytolytic peptide according to claim 1 , which is a cyclic diastereomer of a peptide derived from a non-selective cytolytic natural peptide or of a non- natural synthetic peptide.
22. A non-hemolytic cytolytic complex consisting of a plurality of 2 or more non- hemolytic cytolytic peptides according to any one of claims 1-21, said peptides being bundled together by the use of a linker molecule covalently bound to each ofthe peptides.
23. A complex according to claim 22, wherein the bundle is composed of 2 or more, preferably 5, molecules of the same peptide or of different peptides, and the linker is a peptide according to any one ofthe preceding claims or a commonly used linker.
24. A non-hemolytic cytolytic mixture of hydrophilic diastereomers according to any one of claims 1 to 21.
25. A non-hemolytic cytolytic random copolymer consisting of different ratios of a hydrophobic, a positively charged and a D-amino acid.
26. A non-hemolytic cytolytic random copolymer according to claim 25, composed of lysine, leucine and D-leucine in the ratio 1 : 1 : 1 , 2 : 1 : 1 or 3 : 1 : 1 (Mol).
70 27. A pharmaceutical composition comprising a non-hemolytic cytolytic peptide according to any one of claims 1-21, and a pharmaceutically acceptable carrier.
28. A pharmaceutical composition comprising a non-hemolytic cytolytic complex according to claims 22-23, a mixture of hydrophilic peptides according to claim 24 or a random copolymer according to claims 25-26, and a pharmaceutically acceptable carrier.
29. A pharmaceutical composition according to claim 27 or 28, for use in the treatment of infections caused by pathogenic organisms.
30. A pharmaceutical composition according to claim 29, wherein the pathogenic organism is selected from bacteria, fungi, protozoa, mycoplasma and virus.
31. A pharmaceutical composition according to claim 27 or 28, for use in the treatment of cancer.
71
PCT/IL1997/000066 1996-02-22 1997-02-20 Antipathogenic peptides and compositions comprising them WO1997031019A2 (en)

Priority Applications (19)

Application Number Priority Date Filing Date Title
EA199800754A EA199800754A1 (en) 1996-02-22 1997-02-20 ANTIPATOGENIC PEPTIDES AND COMPOSITIONS INCLUDING THEM
AU17319/97A AU730069B2 (en) 1996-02-22 1997-02-20 Antipathogenic peptides and compositions comprising them
JP9529954A JP2000506128A (en) 1996-02-22 1997-02-20 Antipathogenic peptides and compositions containing them
BR9707691A BR9707691A (en) 1996-02-22 1997-02-20 Antipathogenic peptides and compositions comprising the same
NZ331219A NZ331219A (en) 1996-02-22 1997-02-20 Antipathogenic peptides having a non-hemolytic selective cytolytic activity and compositions comprising them
IL12573497A IL125734A (en) 1996-02-22 1997-02-20 Antipathogenic peptides and compositions comprising them
EP97904561A EP0904291A2 (en) 1996-02-22 1997-02-20 Antipathogenic peptides and compositions comprising them
US09/125,605 US6172038B1 (en) 1996-02-22 1997-02-20 Antipathogenic peptides and compositions comprising them
IL13136898A IL131368A0 (en) 1997-02-20 1998-02-19 Antipathogenic synthetic peptides and compositions comprising them
PCT/IL1998/000081 WO1998037090A1 (en) 1997-02-20 1998-02-19 Antipathogenic synthetic peptides and compositions comprising them
BR9807456-3A BR9807456A (en) 1997-02-20 1998-02-19 Synthetic antipathogenic peptides and compositions comprising the same
US09/367,714 US7001983B1 (en) 1997-02-20 1998-02-19 Antipathogenic synthetic peptides and compositions comprising them
EA199900752A EA199900752A1 (en) 1997-02-20 1998-02-19 ANTIPATOGENIC SYNTHETIC PEPTIDES AND COMPOSITIONS INCLUDING THEM
KR1019997007477A KR20000071187A (en) 1996-02-22 1998-02-19 Antipathogenic synthetic peptides and compositions comprising them
JP53645398A JP2001512475A (en) 1997-02-20 1998-02-19 Antipathogenic synthetic peptides and compositions containing them
CA002281204A CA2281204A1 (en) 1997-02-20 1998-02-19 Antipathogenic synthetic peptides and compositions comprising them
EP98903286A EP0977774A1 (en) 1997-02-20 1998-02-19 Antipathogenic synthetic peptides and compositions comprising them
AU60056/98A AU6005698A (en) 1997-02-20 1998-02-19 Antipathogenic synthetic peptides and compositions comprising them
CN98804347A CN1252808A (en) 1997-02-20 1998-02-19 Antipathogenic synthetic piptides and compositions comprising them

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL11722396A IL117223A0 (en) 1996-02-22 1996-02-22 Antipathogenic polypeptides and compositions comprising them
IL117223 1996-02-22

Publications (3)

Publication Number Publication Date
WO1997031019A2 WO1997031019A2 (en) 1997-08-28
WO1997031019B1 true WO1997031019B1 (en) 1997-10-23
WO1997031019A3 WO1997031019A3 (en) 1997-10-23

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Country Status (13)

Country Link
US (1) US6172038B1 (en)
EP (1) EP0904291A2 (en)
JP (1) JP2000506128A (en)
KR (2) KR19990087100A (en)
CN (1) CN1216549A (en)
AU (1) AU730069B2 (en)
BR (1) BR9707691A (en)
CA (1) CA2247025A1 (en)
CZ (1) CZ264398A3 (en)
EA (1) EA199800754A1 (en)
IL (2) IL117223A0 (en)
NZ (1) NZ331219A (en)
WO (1) WO1997031019A2 (en)

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Publication number Priority date Publication date Assignee Title
CN1252808A (en) * 1997-02-20 2000-05-10 耶达研究及发展有限公司 Antipathogenic synthetic piptides and compositions comprising them
US6818213B1 (en) * 1998-07-13 2004-11-16 Board Of Regents, The University Of Texas System Cancer treatment compositions comprising therapeutic conjugates that bind to aminophospholipids
BR9912053A (en) 1998-07-13 2001-04-03 Univ Texas Cancer treatment processes using therapeutic conjugates that bind to aminophospholipids
US6660843B1 (en) 1998-10-23 2003-12-09 Amgen Inc. Modified peptides as therapeutic agents
MEP42108A (en) 1998-10-23 2011-02-10 Kiren Amgen Inc Dimeric thrombopoietin peptide mimetics binding to mp1 receptor and having thrombopoietic activity
US7488590B2 (en) 1998-10-23 2009-02-10 Amgen Inc. Modified peptides as therapeutic agents
GB0005703D0 (en) 2000-03-09 2000-05-03 Alpharma As Compounds
IL139720A0 (en) * 2000-11-16 2002-02-10 Yeda Res & Dev Diastereomeric peptides and pharmaceutical compositions comprising them
CA2529125A1 (en) * 2003-06-19 2004-12-23 Yeda Research & Development Co. Ltd. Antimicrobial and anticancer lipopeptides
EP1773400A2 (en) 2004-07-08 2007-04-18 Amgen Inc. Therapeutic peptides
AU2005319578A1 (en) * 2004-11-24 2006-06-29 Neopro Labs, Llc Methods and compositions for treating conditions
WO2006128289A1 (en) * 2005-06-02 2006-12-07 University Of Manitoba Use of brevinin-2r in the treatment of cancer
US8008453B2 (en) 2005-08-12 2011-08-30 Amgen Inc. Modified Fc molecules
WO2007074457A2 (en) * 2005-12-27 2007-07-05 Yeda Research And Development Co. Ltd. Histidine-containing diastereomeric peptides and uses thereof
CA2637221A1 (en) 2006-02-10 2007-08-16 Dermagen Ab Novel antimicrobial peptides and use thereof
US9283260B2 (en) 2006-04-21 2016-03-15 Amgen Inc. Lyophilized therapeutic peptibody formulations
JP6205364B2 (en) * 2012-09-05 2017-09-27 株式会社メニコン Drug sustained release ophthalmic lens and method for producing the same
JP6093528B2 (en) * 2012-09-19 2017-03-08 株式会社ミルボン Screening method
US11103547B2 (en) 2016-02-04 2021-08-31 Yissum Research Development Company Of The Hebrew University Of Jerusalem Ltd. Methods for disrupting biofilms
GB2557654A (en) * 2016-12-14 2018-06-27 Uea Enterprises Ltd Method for nucleic acid depletion
CN113528600A (en) * 2021-07-08 2021-10-22 石河子大学 Method for preparing antibacterial peptide by inducing fly maggots with salmonella

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US5258454A (en) * 1988-09-01 1993-11-02 Riso National Laboratory Peptide synthesis method and solid support for use in the method

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