CN101440124B - Methods for preventing mitochondrial permeability transition - Google Patents

Methods for preventing mitochondrial permeability transition Download PDF

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CN101440124B
CN101440124B CN2008101770569A CN200810177056A CN101440124B CN 101440124 B CN101440124 B CN 101440124B CN 2008101770569 A CN2008101770569 A CN 2008101770569A CN 200810177056 A CN200810177056 A CN 200810177056A CN 101440124 B CN101440124 B CN 101440124B
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dextrorotation
phe
dmt
arginine
phenylalanine
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CN101440124A (en
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黑兹尔·H·塞托
赵克胜
彼得·W·席勒
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Clinical Research Institute of Montreal
Cornell Research Foundation Inc
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Clinical Research Institute of Montreal
Cornell Research Foundation Inc
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Abstract

The invention provides a method of reducing or preventing mitochondrial permeability transitioning. The method comprises administering an effective amount of an aromatic-cationic peptide having at least one net positive charge; a minimum of four amino acids; a maximum of about twenty amino acids; a relationship between the minimum number of net positive charges (pm) and the total number of amino acid residues (r) wherein 3pm is the largest number that is less than or equal to r+1; and a relationship between the minimum number of aromatic groups (a) and the total number of net positive charges (pt) wherein 2a is the largest number that is less than or equal to pt+1, except that when a is 1, pt may also be 1.

Description

Be used to prevent the method for mitochondrial permeability transition
The application is that application number is 200480009297.2, the applying date is on February 3rd, 2004, denomination of invention is divided an application for the application of " being used to prevent the method for mitochondrial permeability transition ".
The right of priority that No. the 60/535th, 690, No. the 60/444th, 777, U.S. Provisional Application that the application requires to submit on February 4th, 2003 and the U.S. Provisional Application submitted on January 8th, 2004.The content of No. the 60/444th, 777, U.S. Provisional Application and the 60/535th, No. 690 is incorporated herein by reference, as a reference.
The present invention is to be to accomplish under the government-funded of PO1DA08924-08 in the approval number that is provided by National Institute of Drug Abuse.United States Government has certain right in the present invention.
Background technology
Plastosome almost is present in all eukaryotic cells, and produces Triphosaden (ATP) through oxidative phosphorylation, thereby is essential for cells survival.Block this important function and can cause necrocytosis.
Plastosome is also through gathering calcium (Ca 2+) and playing the part of important role aspect the intracellular calcium adjusting.The uniport body that drives through membrane potential produces gathering of calcium in mitochondrial matrix.
The absorption of calcium has activated mitochondrial dehydrogenase, and this keep that energy generates and oxidative phosphorylation aspect possibly be important.In addition, plastosome can be used as excessive endochylema Ca 2+Storage tank, thereby the protection cell avoid Ca 2+Overload and downright bad.
Local asphyxia or hypoglycemia can cause mitochondrial function not normal, comprise ATP hydrolysis and Ca 2+Overload.This malfunction causes that (the plastosome perviousness changes mitochondrial permeability transition, MPT).The characteristic of MPT has: the oxidative phosphorylation uncoupling, and the mitochondrial membrane potential forfeiture, interior membrane permeability increases and swelling.
In addition, the gap is the bank of apoptogene albumen (apoptogenic proteins) between mitochondrial membrane.Therefore, the forfeiture of plastosome current potential and MPT can cause apoptogene albumen is discharged in the tenuigenin.More and more evidences shows MPT relevant with the apoptosis cell death with gangrenosum acne (Crompton, Biochem J.341:233-249,1999), and this is not curious.The slight damage of cell possibly cause apoptosis rather than necrosis.
Cyclosporin A can suppress MPT.Block the apoptosis that can suppress the various kinds of cell type by the MPT due to the cyclosporin A, comprise the experience local asphyxia, anoxic, Ca 2+The cell (Kroemer et al., Annu Rev Physiol.60:619-642,1998) of overload and oxidative stress.
Yet cyclosporin A is not best as the medicine of necrosis property and apoptotic cell death.For example, cyclosporin A target plastosome specifically.In addition, it is difficult to be delivered to brain.And, because its immunosuppressive activity has reduced the range of application of cyclosporin A.
Tetrapeptide [Dmt 1] DALDA (2 ', 6 '-dimethyl-tyrosine-D-l-arginine-phenylalanine(Phe)-Methionin-NH 2SS-02) molecular weight is 640, and under physiological pH, has 3 clean positive charges.[Dmt 1] DALDA is easy to pass plasma membrane (the Zhao et al. of many mammalian cell types with the mode that non-energy relies on; J Pharmacol Exp.Ther.304:425-432; 2003) and pass hemato encephalic barrier (Zhao et al.; JPharmacol Exp.Ther.302:188-196,2002).Although [Dmt 1] DALDA has demonstrated is a kind of potential μ-opioid (μ-class opium, opioid) receptor stimulant, but its application does not also expand to and comprises the aspect that suppresses MPT.
Therefore, like ischemia-reperfusion, anoxia, hypoglycemia and because under the situation of the disease of other of the pathological change that mitochondrial membrane permeability changes (transformations of plastosome perviousness) is caused and illness, needs inhibition MPT.Such disease and illness comprise multiple common nerve degenerative diseases or illness.
Summary of the invention
The present invention provides a kind of being used for to reduce plastosome quantity that experiences mitochondrial permeability transition (MPT) or the method that prevents mitochondrial permeability transition any Mammals that needs are arranged, and these purposes can realize through the present invention with other purpose.This method comprises the aromatic series cationic peptide with following characteristic that gives this Mammals significant quantity:
(a) at least one clean positive charge;
(b) minimum 3 amino acid;
(c) maximum about 20 amino acid;
(d) minimal number (p of clean positive charge m) and the sum (r) of amino-acid residue between relation be: 3p wherein mIt is the maximum number that is less than or equal to r+1; And
(e) sum (p of minimal number of aromatic base (a) and clean positive charge t) between relation be: wherein 2a is less than or equal to p t+ 1 maximum number, only if when a is 1, p tAlso can be 1.
In another specific embodiment, the present invention provides a kind of method that in mammiferous isolated organ, reduces the plastosome quantity of experience mitochondrial permeability transition (MPT) or prevent mitochondrial permeability transition.This method comprises the aromatic series cationic peptide with following characteristic that gives this isolated organ significant quantity:
(a) at least one clean positive charge;
(b) minimum 3 amino acid;
(c) maximum about 20 amino acid;
(d) clean positive charge minimal number (p m) and amino-acid residue sum (r) between relation be: 3p wherein mIt is the maximum number that is less than or equal to r+1; And
(e) sum (p of minimal number of aromatic base (a) and clean positive charge t) between relation be: wherein, 2a is less than or equal to p t+ 1 maximum number, only if when a is 1, p tAlso can be 1.
In another specific embodiment, the present invention provides a kind of method that in the Mammals that needs is arranged, reduces the plastosome quantity of experience mitochondrial permeability transition (MPT) or prevent mitochondrial permeability transition.This method comprises the aromatic series cationic peptide with following characteristic that gives this Mammals significant quantity:
(a) at least one clean positive charge;
(b) minimum 3 amino acid;
(c) maximum about 20 amino acid;
(d) minimal number (p of clean positive charge m) and the sum (r) of amino-acid residue between relation be: 3p wherein mIt is the maximum number that is less than or equal to r+1; And
(e) sum (p of minimal number of aromatic base (a) and clean positive charge t) between relation be: wherein 3a is less than or equal to p t+ 1 maximum number, only if when a is 1, p tAlso can be 1.
In specific embodiment further, the present invention provides a kind of method that in mammiferous isolated organ, reduces the plastosome quantity of experience mitochondrial permeability transition (MPT) or prevent mitochondrial permeability transition.This method comprises the aromatic series cationic peptide with following characteristic that gives this isolated organ significant quantity:
(a) at least one clean positive charge;
(b) minimum 3 amino acid;
(c) maximum about 20 amino acid;
(d) minimal number (p of clean positive charge m) and the sum (r) of amino-acid residue between relation be: 3p wherein mIt is the maximum number that is less than or equal to r+1; And
(e) sum (p of minimal number of aromatic base (a) and clean positive charge t) between relation be: wherein, 3a is less than or equal to p t+ 1 maximum number, only if when a is 1, p tAlso can be 1.
Description of drawings
Fig. 1: [Dmt in the plastosome 1] cell internalizing and the gathering of DALDA (SS-02).(A) take in (ex/em=320/420) with the plastosome of fluorescence spectrophotometer measurement SS-19.Add separated mouse liver plastosome (0.35mg/ml) and cause the quick cancellation of SS-19 fluorescence intensity (gray line).Reduce cancellation < 20% (black line) with the pretreated plastosome of FCCP (1.5 μ M).(B) separated plastosome with [ 3H] SS-02 hatched (incubation) 2 minutes in 37 ℃.In 4 ℃ of centrifugal (termination absorption in 16000 * g) 5 minutes, the radioactivity in the mensuration deposition.With the pretreated plastosome of FCCP suppress [ 3H] SS-02 absorption～20%.Data are represented with mean+/-standard error; N=3, *, the P < 0.05 that adopts Student ' s t-to check.(C) TMRM that by the mitochondrial swelling of alamethicin inductive separated plastosome is taken in loses, and the SS-19 that takes in then remains on high density.Black line is TMRM; Red line is SS-19.(D) as fluorimetric, in separated plastosome, add SS-02 (200 μ M) and do not change the plastosome current potential through TMRM.Add FCCP (1.5 μ M) and cause rapid depolarization, and Ca 2+(150 μ M) causes depolarize and the progressive beginning of MPT.
Fig. 2. [Dmt 1] DALDA (SS-02) protective wire plastochondria avoids Ca 2+Overload and 3-nitropropionic acid (3NP) inductive mitochondrial permeability transition (MPT).(A) separated plastosome has stoped by Ca with the SS-02 pre-treatment (representing to add with following arrow) of 10 μ M 2+The generation (upward arrow) of overload inductive MPT.Black line is a damping fluid; Red line is SS-02.(B) separated plastosome has increased before MPT takes place with the SS-02 pre-treatment and has added Ca at double 2+The plastosome tolerance.The arrow indication adds damping fluid or SS-02.Line 1 is a damping fluid; Line 2 is the SS-02 of 50 μ M; Line 3 is the SS-02 of 100 μ M.(C) SS-02 dose-dependently ground delays the generation by 1mM3NP inductive MPT.Arrow representes to add damping fluid or SS-02.Line 1 is a damping fluid, and line 2 is the SS-02 of 0.5 μ M; Line 3 is the SS-02 of 5 μ M; Line 4 is the SS-02 of 50 μ M.
Fig. 3. [Dmt 1] DALDA (SS-02) suppresses mitochondrial swelling and Lrax discharges.(A) separated plastosome is used the SS-02 pre-treatment, its dose-dependently ground has suppressed the Ca by 200 μ M 2+Rely on the mitochondrial swelling of mode inductive with dosage.Through measuring swelling in the absorbancy at 540nm place.(B) SS-02 suppresses in the separated plastosome by Ca 2+The release of inductive Lrax.The burst size of Lrax is represented with the percentage ratio of total Lrax in the plastosome.Data are represented with mean+/-standard error, n=3.(C) SS-02 also can suppress by MPP +(300 μ M) inductive mitochondrial swelling.
Fig. 4 .D-l-arginine-Dmt-Methionin-phenylalanine(Phe)-NH 2(SS-31) suppressing mitochondrial swelling and Lrax discharges.(A) separated plastosome has stoped by Ca with SS-31 (10 μ M) pre-treatment 2+The generation of inductive MPT.Gray line is a damping fluid; Red line is SS-31.(B) plastosome has suppressed the Ca by 200mM with SS-31 (50 μ M) pre-treatment 2+The inductive mitochondrial swelling.Measure swelling through measuring in the scattering of light at 570nm place.(C) SS-02 and SS-31 and Cyclosporin A (CsA) are suppressing by Ca 2+The comparison that inductive mitochondrial swelling and Lrax discharge.The Lrax burst size is represented with the percentage ratio of total Lrax in the plastosome.Data are represented with mean+/-standard error, n=3.
Fig. 5. [Dmt 1] DALDA (SS-02) and D-l-arginine-Dmt-Methionin-phenylalanine(Phe)-NH 2(SS-31) in the dirty ischemia-reperfusion process of dabbling guinea-pig heart, protecting myocardial contraction.Heart is with damping fluid or contain SS-02 (100nM) or the damping fluid of SS-31 (1nM) perfusion 30 minutes, stands (global) whole-heartedly ischemic of 30 minutes then.Primer solution with same is poured into again.There is significant difference (two-way analysis of variance, P < 0.001) in discovery in 3 treatment groups.
Fig. 6. add [Dmt in the heart cardioplegic solution 1] DALDA significantly strengthened through the dirty contractile function after the ischemic that prolongs of dabbling guinea-pig heart.After stablizing 30 minutes, heart is with St.Thomas cardioplegic solution (CPS) or contain [the Dmt of 100nM 1] the CPS perfusion 3 minutes of DALDA.Caused whole-heartedly in 90 minutes and lose blood through blocking coronary perfusion fully.Krebs-Henseleit solution with oxidation carries out 60 minutes and reperfusion subsequently.Accepting [Dmt 1] ischemic post shrinkage power is significantly increased (P in the group of DALDA<0.001).
Embodiment
The present invention is based on contriver's surprising discovery: some aromatic series cationic peptide has reduced the plastosome quantity of experience mitochondrial permeability transition (MPT) significantly, even has stoped MPT fully.It is very important reducing the plastosome quantity of experience MPT and stoping MPT, because multiple common disease is relevant with illness in MPT and the Mammals.In addition, MPT takes place in mammiferous isolated organ easily.These diseases and illness have special clinical meaning, because they influence the crowd of significant proportion in some stage of life.
Peptide
Useful aromatic series cationic peptide is water-soluble and high polar among the present invention.Although these character is arranged, these peptides can be easy to pass cytolemma.
Among the present invention useful aromatic series cationic peptide comprise minimum 3 through the covalently bound amino acid of peptide bond, and preferably include minimum 4 through the covalently bound amino acid of peptide bond.
Amino acid maximum number in the aromatic series cationic peptide of the present invention is for passing through covalently bound about 20 amino acid of peptide bond.The maximum number of preferred amino acids is about 12, more preferably about 9, and most preferably be about 6.Best situation is that the amino acid number that is present in this peptide is 4.
Amino acid among the present invention in the useful aromatic series cationic peptide can be any amino acid.Term " amino acid " in this article refers to and contains at least one any organic molecule amino and at least one carboxyl.Preferably, at least one amino is positioned at the α position with respect to carboxyl.
These amino acid can be naturally occurring.Naturally occurring amino acid comprises; 20 kinds of modal left-handed (L) amino acid, i.e. L-Ala (Ala), l-arginine (Arg), l-asparagine (Asn), aspartic acid (Asp), halfcystine (Cys), Stimulina (Gln), L-glutamic acid (Glu), glycocoll (Gly), Histidine (His), Isoleucine (Ileu), leucine (Leu), Methionin (Lys), methionine(Met) (Met), phenylalanine(Phe) (Phe), proline(Pro) (Pro), Serine (Ser), Threonine (Thr), tryptophane (Trp), tyrosine (Tyr) and Xie Ansuans (Val) for example in mammalian proteins matter, finding naturally.
Other naturally occurring amino acid for example comprise with the irrelevant metabolic process of protein synthesis in synthetic amino acid.For example, Mammals metabolism synthetic ornithine and these amino acid of N.delta.-carbamylornithine in the process that produces urine.
The available peptide can contain the amino acid that one or more non-naturals exist among the present invention.The amino acid that these non-naturals exist can be left-handed (L), dextrorotation (D) or their mixture.Best situation is that this peptide does not contain naturally occurring amino acid.
The amino acid that non-natural exists is that those are not synthetic in organism homergy process usually, and is not naturally occurring amino acid in protein.In addition, the amino acid that preferred available non-natural exists among the present invention is not also by common proteolytic enzyme identification.
The amino acid that non-natural exists can appear at any position of this peptide.For example, the amino acid that this non-natural exists can be positioned at the N-end, the terminal or any position between N-end and C-end of C-.
For example, the amino acid of this non-natural existence can comprise these groups of alkyl, aryl or alkaryl.Some examples of alkyl amino acid comprise: butyrine, beta-aminobutyric acid, γ-An Jidingsuan, δ-aminovaleric acid and epsilon-amino caproic acid.Some examples of aryl amino acid comprise the neighbour, and para-amino benzoic acid.The more amino acid whose examples of alkaryl comprise the neighbour, and equal amido phenenyl acid, and γ-phenyl-beta-aminobutyric acid.
The amino acid that non-natural exists also comprises naturally occurring amino acid whose verivate.Naturally occurring amino acid whose verivate can comprise as on naturally occurring amino acid, adding one or more chemical groups.
For example; One or more chemical groups can be added on the one or more positions among 2 ', 3 ', 4 ', 5 ' or 6 ' of aromatic nucleus of phenylalanine(Phe) or tyrosine residues, or on the one or more positions among 4 ', 5 ', 6 ' or 7 ' of the benzo ring of tryptophan residue.This group is any chemical group that can add on the aromatic nucleus.Some examples of these groups comprise the C of side chain or straight chain 1-C 4Alkyl is like methyl, ethyl, n-propyl, sec.-propyl, butyl, isobutyl-or the tertiary butyl, C 1-C 4-oxyl (being alkoxyl group), amino, C 1-C 4Alkylamine and C 1-C 4Dialkylamine (for example methylamine, n n dimetylaniline), nitro, hydroxyl, halogen (promptly fluorine-based, chloro, bromo or iodo).Some specific example of the verivate that naturally occurring amino acid whose non-natural exists comprise norvaline (Nva), nor-leucine (Nle) and oxyproline (Hyp).
Another amino acid modified example in the method for the present invention in useful peptide is the aspartic acid of this peptide or the carboxyl derivatize of glutaminic acid residue.An example of derivatize is with ammonia or with like these primary amine of methylamine, ethamine, n n dimetylaniline or diethylamine or secondary amine amidation.Another example of derivatize comprises to be used like methyl alcohol or ethyl esterification.
A kind of in addition such modification comprises the amino derivatization of Methionin, l-arginine or histidine residues.For example, these amino can be by acidylate.Some suitable acyl groups comprise, for example comprise any above-mentioned C 1-C 4The benzoyl-of alkyl or alkyloyl are like ethanoyl or propionyl group.
Preferably the amino acid of non-natural existence is stable to common proteolytic enzyme, and is more preferably insensitive to it.The amino acid whose example that the stable or insensitive non-natural of proteolytic enzyme is existed comprises any amino acid whose dextrorotation of above-mentioned naturally occurring L-(D-) type, and the amino acid of L-and/or the existence of D-type non-natural.D-amino acid be not normal presence in protein, although in some antibacterial peptide, found them, they are through the instrument synthetic except that the normal ribosomal protein synthesizer of cell.These D-amino acid used herein can be thought the amino acid that non-natural exists.
In order to make susceptibility drop to minimum to proteolytic enzyme; Useful peptide should have and is less than 5 in the method for the present invention; Preferably be less than 4; More preferably be less than 3, and most preferably be less than 2 adjoin can be by the L-amino acid of common proteolytic enzyme identification, no matter whether these amino acid are naturally occurring or non-natural exists.Best situation is that this peptide only contains D-amino acid, and does not contain L-amino acid.
If this peptide contains protease-sensitive aminoacid sequence, then in these amino acid is preferably the D-amino acid (dextrorotation l-arginine) that non-natural exists at least, thereby protease resistant is provided.The example of the responsive sequence of proteolytic enzyme comprises easily by two or more basic aminoacidss that adjoin of common proteolytic enzyme such as endopeptidase and trypsinase incision.The example of basic aminoacids comprises l-arginine, Methionin and Histidine.
To have the clean positive charge with respect to the minimal number of amino-acid residue sum in this peptide be very important to this aromatic series cationic peptide under physiological pH.The minimal number of clean positive charge hereinafter is expressed as (p under the physiological pH m).The amino-acid residue sum hereinafter is expressed as (r) in this peptide.
The minimal number of the clean positive charge of hereinafter discussion all is under the physiological pH condition.Term " physiological pH " in this article refers to the tissue of body of mammals and the normal pH among the organ cell.For example people's physiological pH is about 7.4 usually, but normal physiological pH can be any pH from about 7.0 to about 7.8 in the Mammals.
Be meant among " net charge " this paper by being present in the entrained positive changes of amino acid in this peptide and the difference of negative charge number.In this manual, be to be understood that to net charge and under physiological pH, measure.The naturally occurring amino acid that under physiological pH, has positive charge comprises L-Methionin, L-l-arginine and L-Histidine.The naturally occurring amino acid that under physiological pH, has negative charge comprises L-aspartic acid and L-L-glutamic acid.
Usually, peptide has the N-terminal amino group of a positive charge and the C-terminal carboxyl(group) of a negative charge.Electric charge cancels each other out under physiological pH.As an example that calculates net charge; Peptide: tyrosine-l-arginine-phenylalanine(Phe)-LYS-GLU-Histidine-tryptophane-l-arginine (Tyr-Arg-Phe-Lys-Glu-His-Trp-Arg) has a negative charge amino acid (promptly; L-glutamic acid) and four positive charge amino acid (promptly; Two arginine residues, a Methionin and a histidine).Therefore above-mentioned peptide contains 3 clean positive charges.
In one embodiment of the invention, this aromatic series cationic peptide clean positive charge minimal number (p under physiological pH m) and amino-acid residue sum (r) between relation be: 3P wherein mIt is the maximum number that is less than or equal to r+1.In this embodiment, clean positive charge minimal number (p m) and amino-acid residue sum (r) between relation following:
(r) 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
(p m) 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7
In another embodiment, this aromatic series cationic peptide is at clean positive charge minimal number (p m) and amino-acid residue sum (r) between relation be: 2p wherein mIt is the maximum number that is less than or equal to r+1.In this embodiment, clean positive charge minimal number (p m) and amino-acid residue sum (r) between relation following:
(r) 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
(p m) 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10
In one embodiment, clean positive charge minimal number (p m) equal with amino-acid residue sum (r).In another embodiment, this peptide contains 3 or 4 amino-acid residues and has a minimum clean positive charge, is preferably minimum 2 clean positive charges and more preferably minimum 3 clean positive charges.
This aromatic series cationic peptide has with respect to clean positive charge sum (p t) minimum aromatic group is also very important.The minimal number of aromatic base is expressed as (a) hereinafter.
Naturally occurring amino acid with aromatic base comprises these amino acid of Histidine, tryptophane, tyrosine and phenylalanine(Phe).For example, six peptides: Methionin-glutamine-tyrosine-l-arginine-phenylalanine(Phe)-tryptophane contains 2 clean positive charges (by Methionin and arginine residues contribution) and 3 aromatic bases (by tyrosine, phenylalanine(Phe) and tryptophan residue contribution).
In one embodiment of the invention, useful aromatic series cationic peptide clean positive charge sum (p under aromatic base minimal number (a) and physiological pH in the method for the present invention t) between relation be: wherein 3a is less than or equal to p t+ 1 maximum number is only if work as p tBe 1, a also can be 1.In this embodiment, minimal number of aromatic base (a) and clean positive charge sum (p t) between relation following:
(p t) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
(a) 1 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7
In another embodiment, this aromatic series cationic peptide is at aromatic base minimal number (a) and clean positive charge sum (p t) between relation be: wherein 2a is less than or equal to p t+ 1 maximum number.In this embodiment, minimal number of die aromatischen Aminosaeuren residue (a) and clean positive charge sum (p t) between relation following:
(p t) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
(a) 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10
In another embodiment, aromatic base number (a) and clean positive charge sum (p t) equate.
Carboxyl, the especially terminal carboxyl(group) of C-end amino acid preferably carry out amidation with for example ammonia and form the C-terminal amide.Another kind of optional scheme is that the terminal carboxyl(group) of C-end amino acid can be used any primary amine or secondary amine amidation.This primary amine or secondary amine can be, for example alkyl, especially side chain or straight chain C 1-C 4Alkyl or arylamines.Correspondingly; The terminal amino acid of this peptide C-can change into carboxamido-group, N-methyl nitrosourea base, N-buserelin base, N; N-dimethylformamide base, N, N-diethylamide base, N-methyl-N-buserelin base, N-phenyl amide base or N-phenyl-N-buserelin base.
Even it is terminal that the free carboxyl group group of asparagine residue, glutamine residue, asparagicacid residue and glutaminic acid residue is not positioned at the C-of aromatic series cationic peptide of the present invention, and though they be positioned at any position of this peptide can be by amidation.The amidation of these interior locations can be carried out with ammonia or any above-mentioned primary amine or secondary amine.
In one embodiment, useful aromatic series cationic peptide is a kind of tripeptides with two clean positive charges and at least one die aromatischen Aminosaeuren in the method for the present invention.In a concrete embodiment, useful aromatic series cationic peptide is a kind of tripeptides with two clean positive charges and two die aromatischen Aminosaeurens in the method for the present invention.
Useful aromatic series cationic peptide includes but not limited to the instance of following peptide in the method for the present invention:
Methionin-dextrorotation l-arginine-tyrosine-NH 2(Lys-D-Arg-Tyr-NH 2),
Phenylalanine(Phe)-dextrorotation l-arginine-Histidine (Phe-D-Arg-His),
Dextrorotation tyrosine-tryptophane-Methionin-NH 2(D-Tyr-Trp-Lys-NH 2),
Tryptophane-dextrorotation Methionin-tyrosine-l-arginine-NH 2(Trp-D-Lys-Tyr-Arg-NH 2),
Tyrosine-Histidine-dextrorotation glycocoll-methionine(Met) (Tyr-His-D-Gly-Met),
Phenylalanine(Phe)-l-arginine-right-turn set propylhomoserin-aspartic acid (Phe-Arg-D-His-Asp),
Tyrosine-dextrorotation l-arginine-phenylalanine(Phe)-LYS-GLU-NH 2(Tyr-D-Arg-Phe-Lys-Glu-NH 2),
Methionine(Met)-tyrosine-dextrorotation Methionin-phenylalanine(Phe)-l-arginine (Met-Tyr-D-Lys-Phe-Arg),
Right-turn set propylhomoserin-glutamic-lysine-tyrosine-dexamphetamine propylhomoserin-l-arginine (D-His-Glu-Lys-Tyr-D-Phe-Arg),
Methionin-dextrorotation Stimulina-tyrosine-l-arginine-dexamphetamine propylhomoserin-tryptophane-NH2 (Lys-D-Gln-Tyr-Arg-D-Phe-Trp-NH 2),
Phenylalanine(Phe)-dextrorotation l-arginine-Methionin-tryptophane-tyrosine-dextrorotation l-arginine-Histidine (Phe-D-Arg-Lys-Trp-Tyr-D-Arg-His),
Glycocoll-dexamphetamine propylhomoserin-Methionin-tyrosine-Histidine-dextrorotation l-arginine-tyrosine-NH 2(Gly-D-Phe-Lys-Tyr-His-D-Arg-Tyr-NH 2),
Xie Ansuan-dextrorotation Methionin-Histidine-tyrosine-dexamphetamine propylhomoserin-Serine-tyrosine-l-arginine-NH 2(Val-D-Lys-His-Tyr-D-Phe-Ser-Tyr-Arg-NH 2),
Tryptophane-Methionin-phenylalanine(Phe)-dextrorotation aspartic acid-l-arginine-tyrosine-right-turn set propylhomoserin-Methionin (Trp-Lys-Phe-D-Asp-Arg-Tyr-D-His-Lys),
Methionin-tryptophane-dextrorotation tyrosine-l-arginine-l-asparagine-phenylalanine(Phe)-tyrosine-right-turn set propylhomoserin-NH 2(Lys-Trp-D-Tyr-Arg-Asn-Phe-Tyr-D-His-NH 2),
Threonine-glycocoll-tyrosine-l-arginine-dextrorotation HIS-PHE-tryptophane-right-turn set propylhomoserin-Methionin (Thr-Gly-Tyr-Arg-D-His-Phe-Trp-D-His-Lys),
Aspartic acid-dextrorotation tryptophane-Methionin-tyrosine-dextrorotation HIS-PHE-l-arginine-dextrorotation glycocoll-Methionin-NH 2(Asp-D-Trp-Lys-Tyr-D-His-Phe-Arg-D-Gly-Lys-NH 2),
Right-turn set propylhomoserin-Methionin-tyrosine-dexamphetamine propylhomoserin-L-glutamic acid-dextrorotation aspartic acid-right-turn set propylhomoserin-dextrorotation Methionin-l-arginine-tryptophane-NH 2(D-His-Lys-Tyr-D-Phe-Glu-D-Asp-D-His-D-Lys-Arg-Trp-NH 2),
L-Ala-dexamphetamine propylhomoserin-dextrorotation l-arginine-tyrosine-Methionin-dextrorotation tryptophane-Histidine-dextrorotation tyrosine-glycocoll-phenylalanine(Phe) (Ala-D-Phe-D-Arg-Tyr-Lys-D-Trp-His-D-Tyr-Gly-Phe),
Tyrosine-dextrorotation HIS-PHE-dextrorotation l-arginine-aspartic acid-Methionin-dextrorotation l-arginine-Histidine-tryptophane-dextrorotation HIS-PHE (Tyr-D-His-Phe-D-Arg-Asp-Lys-D-Arg-His-Trp-D-His-Phe),
Phenylalanine(Phe)-phenylalanine(Phe)-dextrorotation tyrosine-l-arginine-L-glutamic acid-aspartic acid-dextrorotation Methionin-l-arginine-dextrorotation l-arginine-HIS-PHE-NH 2(Phe-Phe-D-Tyr-Arg-Glu-Asp-D-Lys-Arg-D-Arg-His-Phe-NH 2),
Phenylalanine(Phe)-tyrosine-Methionin-dextrorotation l-arginine-tryptophane-Histidine-dextrorotation Methionin-dextrorotation LYS-GLU-l-arginine-dextrorotation tyrosine-Threonine (Phe-Try-Lys-D-Arg-Trp-His-D-Lys-D-Lys-Glu-Arg-D-Tyr-Thr),
Tyrosine-aspartic acid-dextrorotation Methionin-tyrosine-phenylalanine(Phe)-dextrorotation Methionin-dextrorotation l-arginine-phenylalanine(Phe)-proline(Pro)-dextrorotation tyrosine-Histidine-Methionin (Tyr-Asp-D-Lys-Tyr-Phe-D-Lys-D-Arg-Phe-Pro-D-Tyr-His-Lys)
L-glutamic acid-l-arginine-dextrorotation Methionin-tyrosine-D-Val-phenylalanine(Phe)-right-turn set propylhomoserin-tryptophane-l-arginine-dextrorotation glycocoll-tyrosine-l-arginine-dextrorotation methionine(Met)-NH 2(Glu-Arg-D-Lys-Tyr-D-Val-Phe-D-His-Trp-Arg-D-Gly-Tyr-Arg-D-Met-NH 2),
L-arginine-dextrorotation leucine-dextrorotation tyrosine-phenylalanine(Phe)-LYS-GLU-dextrorotation Methionin-l-arginine-dextrorotation tryptophane-Methionin-dexamphetamine propylhomoserin-tyrosine-dextrorotation arginine-glycine (Arg-D-Leu-D-Tyr-Phe-Lys-Glu-D-Lys-Arg-D-Trp-Lys-D-Phe-Ty r-D-Arg-Gly)
Dextrorotation L-glutamic acid-l-arginine-Methionin-dextrorotation l-arginine-dextrorotation HIS-PHE-phenylalanine(Phe)-D-Val-tyrosine-l-arginine-tyrosine-dextrorotation tyrosine-l-arginine-HIS-PHE-NH 2(D-Glu-Asp-Lys-D-Arg-D-His-Phe-Phe-D-Val-Tyr-Arg-Tyr-D-Ty r-Arg-His-Phe-NH 2),
Aspartic acid-l-arginine-dexamphetamine propylhomoserin-halfcystine-phenylalanine(Phe)-dextrorotation l-arginine-dextrorotation Methionin-tyrosine-l-arginine-dextrorotation tyrosine-tryptophane-right-turn set propylhomoserin-tyrosine-dexamphetamine propylhomoserin-Methionin-phenylalanine(Phe) (Asp-Arg-D-Phe-Cys-Phe-D-Arg-D-Lys-Tyr-Arg-D-Tyr-Trp-D-Hi s-Tyr-D-Phe-Lys-Phe)
Histidine-tyrosine-dextrorotation l-arginine-tryptophane-Methionin-phenylalanine(Phe)-dextrorotation aspartic acid-L-Ala-l-arginine-halfcystine-dextrorotation tyrosine-HIS-PHE-dextrorotation Methionin-tyrosine-Histidine-Serine-NH 2(His-Tyr-D-Arg-Trp-Lys-Phe-D-Asp-Ala-Arg-Cys-D-Tyr-His-Ph e-D-Lys-Tyr-His-Ser-NH 2),
Glycocoll-L-Ala-Methionin-phenylalanine(Phe)-dextrorotation LYS-GLU-l-arginine-tyrosine-Histidine-dextrorotation l-arginine-dextrorotation l-arginine-aspartic acid-tyrosine-tryptophane-right-turn set propylhomoserin-tryptophane-Histidine-dextrorotation Methionin-aspartic acid (Gly-Ala-Lys-Phe-D-Lys-Glu-Arg-Tyr-His-D-Arg-D-Arg-Asp-Ty r-Trp-D-His-Trp-His-D-Lys-Asp)
And
Threonine-tyrosine-l-arginine-dextrorotation Methionin-tryptophane-tyrosine-L-glutamic acid-aspartic acid-dextrorotation Methionin-dextrorotation l-arginine-HIS-PHE-dextrorotation tyrosine-glycocoll-Xie Ansuan-Isoleucine-right-turn set propylhomoserin-l-arginine-tyrosine-NH 2(Thr-Tyr-Arg-D-Lys-Trp-Tyr-Glu-Asp-D-Lys-D-Arg-His-Phe-D-Tyr-Gly-Val-Ile-D-His-Arg-Tyr-NH 2).
In one embodiment, useful peptide has μ-opioid receptor agonist active (that is, activating μ-Opioid Receptors) in the method for the present invention.The activation of μ-Opioid Receptors has analgesic effect usually.
In some cases, the aromatic series cationic peptide that preferably has μ-opioid receptor activity.For example, in the short process as acute illness and illness, the aromatic series cationic peptide that use can activate μ-Opioid Receptors is useful.These acute illnesss are relevant with moderate or severe pain usually with illness.In these cases; The analgesic effect of this aromatic series cationic peptide is useful in to patient or other mammiferous regimen; Although it can not activate the aromatic series cationic peptide of μ-Opioid Receptors, also can according to clinical needs with or be not used in combination with pain killer.
In other cases, alternative dispensing means does not preferably have the aromatic series cationic peptide of μ-opioid receptor activity.For example, in the long-term treatment process as chronic disease and illness, the aromatic series cationic peptide that use can activate μ-Opioid Receptors possibly be an incompatible.In these cases, this aromatic series cationic peptide potential spinoff or habituation effect may hinder have μ-the aromatic series cationic peptide of Opioid Receptors activation is to the use in patient or other the mammiferous regimen.
The potential spinoff can comprise calmness, constipation and respiration inhibition.The aromatic series cationic peptide that in these cases, can not activate μ-Opioid Receptors possibly be a kind of appropriate medicine.
The instance of acute disease comprises: heart attack, apoplexy (apoplexy) and wound.Wound can comprise cerebral trauma and trauma of spinal cord.
Chronic disease and examples of disorders comprise: the coronary artery disease that is described below and any nerve degenerative diseases.
Useful peptide those peptides that contain tyrosine residues or terminal (that is first amino acid position) verivate of tyrosine N-normally in the method for the present invention with μ-opioid receptor activity.Preferred tyrosine derivative comprises: 2 '-MK-781 (Mmt); 2 ', 6 '-dimethyl-tyrosine (2 ' 6 ' Dmt); 3 ', 5 '-dimethyl-tyrosine (3 ' 5 ' Dmt); N, 2 ', 6 '-trimethylammonium tyrosine (Tmt); And 2 '-hydroxyl-6 '-MK-781 (Hmt).
In a special preferred embodiment, the peptide with μ-opioid receptor activity has molecular formula and is: tyrosine-dextrorotation l-arginine-phenylalanine(Phe)-Methionin-NH 2(Tyr-D-Arg-Phe-Lys-NH 2) (be expressed as with acronym for ease: DALDA is called SS-01 in this article).DALDA has 3 clean positive charges that provided by these amino acid of tyrosine, l-arginine and Methionin, and 2 aromatic groups that provided by phenylalanine(Phe) and tyrosine.The tyrosine of DALDA can be adorned tyrosine derivative like 2 ', 6 '-dimethyl-tyrosine, to have molecular formula be 2 ', 6 '-dimethyl-tyrosine-dextrorotation l-arginine-phenylalanine(Phe)-Methionin-NH thereby generate 2(2 ', 6 '-Dmt-D-Arg-Phe-Lys-NH 2) (that is Dmt, 1-DALDA is called SS-02 in this article) compound.
The peptide that does not have μ-opioid receptor activity does not contain tyrosine residues or tyrosine derivative at N-terminal (that is amino acid whose position 1) usually.At the terminal amino acid of N-can be any natural amino acid that exist or that non-natural exists except that tyrosine.
In one embodiment,-terminal amino acid is the phenylalanine(Phe) or derivatives thereof.Preferred phenylalanine derivative comprises: 2 '-methylbenzene L-Ala (Mmp), 2 ', 6 '-dimethyl benzene L-Ala (Dmp), N, 2 ', 6 '-Three methyl Benzene L-Ala (Tmp) and 2 '-hydroxyl-6 '-methylbenzene L-Ala (Hmp).
The another kind of molecular formula that does not have the aromatic series cationic peptide of μ-opioid receptor activity is: phenylalanine(Phe)-dextrorotation l-arginine-phenylalanine(Phe)-Methionin-NH 2(Phe-D-Arg-Phe-Lys-NH 2) (that is Phe, 1-DALDA is called SS-20 in this article).Alternatively optional, the verivate that the terminal phenylalanine(Phe) of this N-can be a phenylalanine(Phe) is like 2 ', 6 '-dimethyl benzene L-Ala (2 ' 6 ' Dmp).The molecular formula that contains the DALDA of 2 ', 6 '-dimethyl benzene L-Ala at amino acid position 1 is 2 ', 6 '-Dmp-dextrorotation l-arginine-phenylalanine(Phe)-Methionin-NH 2(2 ', 6 '-Dmp-D-Arg-Phe-Lys-NH 2) (that is 2 ' 6 ' Dmp, 1-DALDA).
In a preferred embodiment, Dmt 1The aminoacid sequence of-DALDA (SS-02) is arranged again, makes Dmt not be positioned at the N-end.Not having the molecular formula that the example of the aromatic series cationic peptide of μ-opioid receptor activity has like this is: dextrorotation l-arginine-2 ' 6 ' Dmt-Methionin-phenylalanine(Phe)-NH 2(D-Arg-2 ' 6 ' Dmt-Lys-Phe-NH 2) (being called SS-31 in this manual).
DALDA, Phe 1-DALDA, SS-31 and their verivate may further include functional analogue.If this analogue has and DALDA, Phe 1The similar function of-DALDA or SS-31, then this peptide b referred to as DALDA, Phe 1The functional analogue of-DALDA or SS-31.For example, this analogue can be DALDA, Phe 1The replacement variant of-DALDA or SS-31, one or more amino acid are by other aminoacid replacement in this replacement variant.
DALDA, Phe 1The suitable replacement variant of-DALDA or SS-31 comprises conservative aminoacid replacement.Amino acid can divide into groups as follows according to their physicochemical property:
(a) nonpolar amino acid: L-Ala (A) Serine (S) Threonine (T) proline(Pro) (P) glycocoll (G) (Ala (A) Ser (S) Thr (T) Pro (P) Gly (G));
(b) acidic amino acid: l-asparagine (N) aspartic acid (D) L-glutamic acid (E) glutamine (Q) (Asn (N) Asp (D) Glu (E) Gln (Q));
(c) basic aminoacids: Histidine (H) l-arginine (R) Methionin (K) (His (H) Arg (R) Lys (K));
(d) hydrophobic amino acid: methionine(Met) (M) leucine (L) Isoleucine (I) Xie Ansuan (V) (Met (M) Leu (L) Ile (I) Val (V)); And
(e) die aromatischen Aminosaeuren: phenylalanine(Phe) (F) tyrosine (T) tryptophane (W) Histidine (H) (Phe (F) Tyr (Y) Trp (W) His (H)).
An amino acid in the peptide is called conservative the replacement by another aminoacid replacement on the same group, and this physicochemical property that can keep original peptide.On the contrary, amino acid in the peptide is generally more likely changed the character of original peptide by on the same group another aminoacid replacement not.
In practice of the present invention, the example that can activate the useful analogue of μ-Opioid Receptors includes but not limited to the aromatic series cationic peptide shown in the table 1.
Table 1
Amino acid amino acid amino acid amino acid amino acid position 5 C-are terminal
3 positions 4,2 positions, 1 position, position (if existence) are modified
Tyrosine dextrorotation l-arginine phenylalanine(Phe) Methionin NH2
Tyrosine dextrorotation l-arginine phenylalanine(Phe) ornaline (Orn) NH 2
Tyrosine dextrorotation l-arginine phenylalanine(Phe) Dab NH 2
Tyrosine dextrorotation l-arginine phenylalanine(Phe) Dap NH 2
2 ' 6 ' Dmt dextrorotation l-arginine phenylalanine(Phe) Methionin NH 2
2 ' 6 ' Dmt dextrorotation l-arginine phenylalanine(Phe) Methionin halfcystine NH 2
2 ' 6 ' Dmt dextrorotation l-arginine phenylalanine(Phe) Methionin-NH (CH 2) 2-NH-dns NH 2
2 ' 6 ' Dmt dextrorotation l-arginine phenylalanine(Phe) Methionin-NH (CH 2) 2-NH-atn NH 2
2 ' 6 ' Dmt dextrorotation l-arginine phenylalanine(Phe) dns Methionin NH 2
2 ' 6 ' Dmt dextrorotation citicoline phenylalanine(Phe) Methionin NH 2
(D-Cit)
2 ' 6 ' Dmt dextrorotation citicoline phenylalanine(Phe) Ahp NH 2
(D-Cit)
2 ' 6 ' Dmt dextrorotation l-arginine phenylalanine(Phe) ornaline (Orn) NH 2
2 ' 6 ' Dmt dextrorotation l-arginine phenylalanine(Phe) Dab NH 2
2 ' 6 ' Dmt dextrorotation l-arginine phenylalanine(Phe) Dap NH 2
2 ' 6 ' Dmt dextrorotation l-arginine phenylalanine(Phe) Ahp (2-aminoheptylic acid) NH 2
Bio-2 ' 6 ' Dmt dextrorotation l-arginine phenylalanine(Phe) Methionin NH 2
3 ' 5 ' Dmt dextrorotation l-arginine phenylalanine(Phe) Methionin NH 2
3 ' 5 ' Dmt dextrorotation l-arginine phenylalanine(Phe) ornaline (Orn) NH 2
3 ' 5 ' Dmt dextrorotation l-arginine phenylalanine(Phe) Dab NH 2
3 ' 5 ' Dmt dextrorotation l-arginine phenylalanine(Phe) Dap NH 2
Tyrosine dextrorotation l-arginine tyrosine Methionin NH 2
Tyrosine dextrorotation l-arginine tyrosine ornaline (Orn) NH 2
Tyrosine dextrorotation l-arginine tyrosine Dab NH 2
Tyrosine dextrorotation l-arginine tyrosine Dap NH 2
2 ' 6 ' Dmt dextrorotation l-arginine tyrosine Methionin NH 2
2 ' 6 ' Dmt dextrorotation l-arginine tyrosine ornaline (Orn) NH 2
2 ' 6 ' Dmt dextrorotation l-arginine tyrosine Dab NH 2
2 ' 6 ' Dmt dextrorotation l-arginine tyrosine Dap NH 2
2 ' 6 ' Dmt dextrorotation arginase 12 ' 6 ' Dmt Methionin NH 2
2 ' 6 ' Dmt dextrorotation arginase 12 ' 6 ' Dmt ornalines (Orn) NH 2
2 ' 6 ' Dmt dextrorotation arginase 12 ' 6 ' Dmt Dab NH 2
2 ' 6 ' Dmt dextrorotation arginase 12 ' 6 ' Dmt Dap NH 2
3 ' 5 ' Dmt dextrorotation l-arginine, 3 ' 5 ' Dmt l-arginine NH 2
3 ' 5 ' Dmt dextrorotation l-arginine, 3 ' 5 ' Dmt Methionin NH 2
3 ' 5 ' Dmt dextrorotation l-arginine, 3 ' 5 ' Dmt ornaline (Orn) NH 2
3 ' 5 ' Dmt dextrorotation l-arginine, 3 ' 5 ' Dmt Dab NH 2
Tyrosine dextrorotation Methionin phenylalanine(Phe) Dap NH 2
Tyrosine dextrorotation Methionin phenylalanine(Phe) l-arginine NH 2
Tyrosine dextrorotation Methionin phenylalanine(Phe) Methionin NH 2
Tyrosine dextrorotation Methionin phenylalanine(Phe) ornaline (Orn) NH 2
2 ' 6 ' Dmt dextrorotation Methionin phenylalanine(Phe) Dab NH 2
2 ' 6 ' Dmt dextrorotation Methionin phenylalanine(Phe) Dap NH 2
2 ' 6 ' Dmt dextrorotation Methionin phenylalanine(Phe) l-arginine NH 2
2 ' 6 ' Dmt dextrorotation Methionin phenylalanine(Phe) Methionin NH 2
3 ' 5 ' Dmt dextrorotation Methionin phenylalanine(Phe) ornaline (Orn) NH 2
3 ' 5 ' Dmt dextrorotation Methionin phenylalanine(Phe) Dab NH 2
3 ' 5 ' Dmt dextrorotation Methionin phenylalanine(Phe) Dap NH 2
3 ' 5 ' Dmt dextrorotation Methionin phenylalanine(Phe) l-arginine NH 2
Tyrosine dextrorotation Methionin tyrosine Methionin NH 2
Tyrosine dextrorotation Methionin tyrosine ornaline (Orn) NH 2
Tyrosine dextrorotation Methionin tyrosine Dab NH 2
Tyrosine dextrorotation Methionin tyrosine Dap NH 2
2 ' 6 ' Dmt dextrorotation Methionin tyrosine Methionin NH 2
2 ' 6 ' Dmt dextrorotation Methionin tyrosine ornaline (Orn) NH 2
2 ' 6 ' Dmt dextrorotation Methionin tyrosine Dab NH 2
2 ' 6 ' Dmt dextrorotation Methionin tyrosine Dap NH 2
2 ' 6 ' Dmt dextrorotation Methionins, 2 ' 6 ' Dmt Methionin NH 2
2 ' 6 ' Dmt dextrorotation Methionins, 2 ' 6 ' Dmt ornaline (Orn) NH 2
2 ' 6 ' Dmt dextrorotation Methionins, 2 ' 6 ' Dmt Dab NH 2
2 ' 6 ' Dmt dextrorotation Methionins, 2 ' 6 ' Dmt Dap NH 2
2 ' 6 ' Dmt dextrorotation l-arginine phenylalanine(Phe) dnsDap NH 2
2 ' 6 ' Dmt dextrorotation l-arginine phenylalanine(Phe) atnDap NH 2
3 ' 5 ' Dmt dextrorotation Methionins, 3 ' 5 ' Dmt Methionin NH 2
3 ' 5 ' Dmt dextrorotation Methionins, 3 ' 5 ' Dmt ornaline (Orn) NH 2
3 ' 5 ' Dmt dextrorotation Methionins, 3 ' 5 ' Dmt Dab NH 2
3 ' 5 ' Dmt dextrorotation Methionins, 3 ' 5 ' Dmt Dap NH 2
Tyrosine dextrorotation Methionin phenylalanine(Phe) l-arginine NH 2
Tyrosine dextrorotation ornaline phenylalanine(Phe) l-arginine NH 2
(Orn)
Tyrosine dextrorotation Dab phenylalanine(Phe) l-arginine NH 2
Tyrosine dextrorotation Dap phenylalanine(Phe) l-arginine NH 2
2 ' 6 ' Dmt dextrorotation l-arginine phenylalanine(Phe) l-arginine NH 2
2 ' 6 ' Dmt dextrorotation Methionin phenylalanine(Phe) l-arginine NH 2
2 ' 6 ' Dmt dextrorotation ornaline phenylalanine(Phe) l-arginine NH 2
(D-Orn)
2 ' 6 ' Dmt dextrorotation Dab phenylalanine(Phe) l-arginine NH 2
3 ' 5 ' Dmt dextrorotation Dap phenylalanine(Phe) l-arginine NH 2
3 ' 5 ' Dmt dextrorotation l-arginine phenylalanine(Phe) l-arginine NH 2
3 ' 5 ' Dmt dextrorotation Methionin phenylalanine(Phe) l-arginine NH 2
3 ' 5 ' Dmt dextrorotation ornaline phenylalanine(Phe) l-arginine NH 2
(D-Orn)
Tyrosine dextrorotation Methionin tyrosine l-arginine NH 2
Tyrosine dextrorotation ornaline tyrosine l-arginine NH 2
(D-Orn)
Tyrosine dextrorotation Dab tyrosine l-arginine NH 2
Tyrosine dextrorotation Dap tyrosine l-arginine NH 2
2 ' 6 ' Dmt dextrorotation arginase 12 ' 6 ' Dmt l-arginine NH 2
2 ' 6 ' Dmt dextrorotation Methionins, 2 ' 6 ' Dmt l-arginine NH 2
2 ' 6 ' Dmt dextrorotation ornalines, 2 ' 6 ' Dmt l-arginine NH 2
(D-Orn)
2 ' 6 ' Dmt dextrorotation Dab, 2 ' 6 ' Dmt l-arginine NH 2
3 ' 5 ' Dmt dextrorotation Dap, 3 ' 5 ' Dmt l-arginine NH 2
3 ' 5 ' Dmt dextrorotation l-arginine, 3 ' 5 ' Dmt l-arginine NH 2
3 ' 5 ' Dmt dextrorotation Methionins, 3 ' 5 ' Dmt l-arginine NH 2
3 ' 5 ' Dmt dextrorotation ornalines, 3 ' 5 ' Dmt l-arginine NH 2
(D-Orn)
Mmt dextrorotation l-arginine phenylalanine(Phe) Methionin NH 2
Mmt dextrorotation l-arginine phenylalanine(Phe) ornaline (Orn) NH 2
Mmt dextrorotation l-arginine phenylalanine(Phe) Dab NH 2
Mmt dextrorotation l-arginine phenylalanine(Phe) Dap NH 2
Tmt dextrorotation l-arginine phenylalanine(Phe) Methionin NH 2
Tmt dextrorotation l-arginine phenylalanine(Phe) ornaline (Orn) NH 2
Tmt dextrorotation l-arginine phenylalanine(Phe) Dab NH 2
Tmt dextrorotation l-arginine phenylalanine(Phe) Dap NH 2
Hmt dextrorotation l-arginine phenylalanine(Phe) Methionin NH 2
Hmt dextrorotation l-arginine phenylalanine(Phe) ornaline (Orn) NH 2
Hmt dextrorotation l-arginine phenylalanine(Phe) Dab NH 2
Hmt dextrorotation l-arginine phenylalanine(Phe) Dap NH 2
Mmt dextrorotation Methionin phenylalanine(Phe) Methionin NH 2
Mmt dextrorotation Methionin phenylalanine(Phe) ornaline (Orn) NH 2
Mmt dextrorotation Methionin phenylalanine(Phe) Dab NH 2
Mmt dextrorotation Methionin phenylalanine(Phe) Dap NH 2
Mmt dextrorotation Methionin phenylalanine(Phe) l-arginine NH 2
Tmt dextrorotation Methionin phenylalanine(Phe) Methionin NH 2
Tmt dextrorotation Methionin phenylalanine(Phe) ornaline (Orn) NH 2
Tmt dextrorotation Methionin phenylalanine(Phe) Dab NH 2
Tmt dextrorotation Methionin phenylalanine(Phe) Dap NH 2
Tmt dextrorotation Methionin phenylalanine(Phe) l-arginine NH 2
Hmt dextrorotation Methionin phenylalanine(Phe) Methionin NH 2
Hmt dextrorotation Methionin phenylalanine(Phe) ornaline (Orn) NH 2
Hmt dextrorotation Methionin phenylalanine(Phe) Dab NH 2
Hmt dextrorotation Methionin phenylalanine(Phe) Dap NH 2
Hmt dextrorotation Methionin phenylalanine(Phe) l-arginine NH 2
Mmt dextrorotation Methionin phenylalanine(Phe) l-arginine NH 2
Mmt dextrorotation ornaline phenylalanine(Phe) l-arginine NH 2
(D-Orn)
Mmt dextrorotation Dab phenylalanine(Phe) l-arginine NH 2
Mmt dextrorotation Dap phenylalanine(Phe) l-arginine NH 2
Mmt dextrorotation l-arginine phenylalanine(Phe) l-arginine NH 2
Tmt dextrorotation Methionin phenylalanine(Phe) l-arginine NH 2
Tmt dextrorotation ornaline phenylalanine(Phe) l-arginine NH 2
(D-Orn)
Tmt dextrorotation Dab phenylalanine(Phe) l-arginine NH 2
Tmt dextrorotation Dap phenylalanine(Phe) l-arginine NH 2
Tmt dextrorotation l-arginine phenylalanine(Phe) l-arginine NH 2
Hmt dextrorotation Methionin phenylalanine(Phe) l-arginine NH 2
Hmt dextrorotation ornaline phenylalanine(Phe) l-arginine NH 2
(D-Orn)
Hmt dextrorotation Dab phenylalanine(Phe) l-arginine NH 2
Hmt dextrorotation Dap phenylalanine(Phe) l-arginine NH 2
Hmt dextrorotation l-arginine phenylalanine(Phe) l-arginine NH 2
The Dab=DAB
The Dap=diaminopropionic acid
Dmt=dimethyl-tyrosine
Mmt=2 '-MK-781
Tmt=N, 2 ', 6 '-trimethylammonium tyrosine
Hmt=2 '-hydroxyl-6 '-MK-781
DnsDap=β-dansyl-L-α, β-diaminopropionic acid
AtnDap=β-o-amino benzoyl acyl group-L-α, β-diaminopropionic acid
The Bio=vitamin H.
The example that in practice of the present invention, can not activate the useful analogue of μ-Opioid Receptors includes but not limited to the aromatic series cationic peptide shown in the table 2.
Table 2
Amino acid amino acid amino acid amino acid C-is terminal
3 positions 4,2 positions, 1 position, position are modified
Dextrorotation l-arginine Dmt Methionin phenylalanine(Phe) NH 2
Dextrorotation l-arginine Dmt phenylalanine(Phe) Methionin NH 2
Dextrorotation l-arginine phenylalanine(Phe) Methionin Dmt NH 2
Dextrorotation l-arginine phenylalanine(Phe) Dmt Methionin NH 2
Dextrorotation l-arginine Methionin Dmt phenylalanine(Phe) NH 2
Dextrorotation l-arginine Methionin phenylalanine(Phe) Dmt NH 2
Phenylalanine(Phe) Methionin Dmt dextrorotation l-arginine NH 2
Phenylalanine(Phe) Methionin dextrorotation l-arginine Dmt NH 2
Phenylalanine(Phe) dextrorotation l-arginine Dmt Methionin NH 2
Phenylalanine(Phe) dextrorotation l-arginine Methionin Dmt NH 2
Phenylalanine(Phe) Dmt dextrorotation l-arginine Methionin NH 2
Phenylalanine(Phe) Dmt Methionin dextrorotation l-arginine NH 2
Methionin phenylalanine(Phe) dextrorotation l-arginine Dmt NH 2
Methionin phenylalanine(Phe) Dmt dextrorotation l-arginine NH 2
Methionin Dmt dextrorotation l-arginine phenylalanine(Phe) NH 2
Methionin Dmt phenylalanine(Phe) dextrorotation l-arginine NH 2
Methionin dextrorotation l-arginine phenylalanine(Phe) Dmt NH 2
Methionin dextrorotation l-arginine Dmt phenylalanine(Phe) NH 2
Dextrorotation l-arginine Dmt dextrorotation l-arginine phenylalanine(Phe) NH 2
Dextrorotation l-arginine Dmt dextrorotation l-arginine Dmt NH 2
Dextrorotation l-arginine Dmt dextrorotation l-arginine tyrosine NH 2
Dextrorotation l-arginine Dmt dextrorotation l-arginine tryptophane NH 2
Tryptophane dextrorotation l-arginine phenylalanine(Phe) Methionin NH 2
Tryptophane dextrorotation l-arginine tyrosine Methionin NH 2
Tryptophane dextrorotation l-arginine tryptophane Methionin NH 2
Tryptophane dextrorotation l-arginine Dmt Methionin NH 2
Dextrorotation l-arginine tryptophane Methionin phenylalanine(Phe) NH 2
Dextrorotation l-arginine tryptophane phenylalanine(Phe) Methionin NH 2
Dextrorotation l-arginine tryptophane Methionin Dmt NH 2
Dextrorotation l-arginine tryptophane Dmt Methionin NH 2
Dextrorotation l-arginine Methionin tryptophane phenylalanine(Phe) NH 2
Dextrorotation l-arginine Methionin tryptophane Dmt NH 2
Cha dextrorotation l-arginine phenylalanine(Phe) Methionin NH 2
L-Ala dextrorotation l-arginine phenylalanine(Phe) Methionin NH 2
The Cha=cyclohexyl
Amino acid in the peptide shown in table 1 and the table 2 both can be that the L-conformation also can be the D-conformation.
Treat-ment
Peptide mentioned above can be used for treating any disease or the illness relevant with MPT.These diseases and illness include but not limited to: the tissue or the local asphyxia of organ and/or perfusion again, any one in anoxia and the numerous nerve degenerative diseases.Need treatment or prevent that the Mammals of MPT from being those Mammalss that suffer from these diseases or illness.
Local asphyxia in mammalian tissues or the organ is a kind of by oxygen lack (anoxic) and/or the caused many-sided pathological symptom of glucose (that is substrate) shortage.Oxygen and/or glucose among tissue or the organ cell lacks and causes the reduction of energy generative capacity or completely lose and the active ion that takes place is subsequently striden the forfeiture of the function of film transportation.Oxygen and/or glucose lack also can cause the pathological change in other cytolemma, comprises the permeability changes in the mitochondrial membrane.The other molecule can be leaked in the tenuigenin and causes apoptosis cell apoptosis (apoptotic cell death) as being closed in apoptotic proteins in the plastosome usually.Serious local asphyxia can cause necrocytosis.
Local asphyxia in particular organization or the organ or anoxic can be by to the forfeitures of the blood supply of this tissue or organ or seriously reduce and cause.The forfeiture of blood supply or serious minimizing can be caused by for example thromboembolic states apoplexy, coronary sclerosis or peripheral vascular disease.Receive the normally muscle of organizing that local asphyxia or anoxic influence, like cardiac muscle, Skelettmuskel or unstriated muscle.
The organ that influenced by local asphyxia or anoxic can be to suffer local asphyxia or any organ of anoxybiotic.Receive the example of the organ that local asphyxia or anoxic influence to comprise brain, heart, kidney and prostate gland.For example, myocardial ischemia or anoxic are caused by arteriosclerosis or thrombus obstruction that normally the oxygen that they cause being transported to cardiac muscular tissue through heart arter and capillary blood supply reduces or forfeiture.Such myocardial ischemia or anoxic can cause affected myocardium pain and necrosis, and finally can cause heart failure.
Local asphyxia in Skelettmuskel or the unstriated muscle or anoxic can be caused by similar reason.For example, local asphyxia in intestinal smooth muscle or appendicular skeleton flesh or anoxic also can be caused by arteriosclerosis or thrombus obstruction.
Again perfusion be to reduce or any tissue of blocking blood flow or organ in recover blood flow.For example, can recover blood flow to any tissue or organ that influenced by local asphyxia or anoxic.The recovery of blood flow (perfusion again) can known by one of skill in the art any means realize.For example, the perfusion again of ischemic heart tissue can or use thrombolytic drug to realize through angioplasty (reconstructive vascular operation), CBG.
The nerve degenerative diseases that method of the present invention can also be used to treat or prevention is relevant with MPT.The nerve degenerative diseases relevant with MPT comprises: for example parkinson's disease, Alzheimer, huntington's chorea and amyotrophic lateral sclerosis sick (ALS, it is sick to be also referred to as the Luo Gaihe league (unit of length)).Method of the present invention can be used to delay these relevant with MPT or the generation of other nerve degenerative diseases or its process that slows down.Method of the present invention is useful especially when early stage patient of treating the nerve degenerative diseases relevant with MPT and susceptible personnel.
Useful peptide also can be used for before transplanting, preserving mammiferous organ among the present invention.For example, isolated organ possibly be vulnerable to MPT owing to lack blood flow.Therefore, this Toplink is used for preventing MPT at isolated organ.
Can isolated organ be placed like those standard buffer solutions commonly used in the art.For example, isolated heart can place the cardioplegic solution that contains above-mentioned peptide.The concentration of peptide in standard buffer solution can be easy to measured by those skilled in the art.For example, this concentration can be that about 0.1nM arrives between about 10 μ M, is preferably about 1 μ M to about 10 μ M.
This peptide can also give to carry out the Mammals of pharmacological agent disease and illness.If these Side effects of pharmaceutical drugs comprise MPT, then using the Mammals of this medicine will from peptide of the present invention, obtain great benefit.
Through influencing the example that MPT comes the medicine of inducing cytotoxic is the chemotherapeutics Zorubicin.
Synthesizing of peptide
Peptide useful in the method for the present invention can come chemosynthesis through any method well known in the art.The suitable method of synthetic this albumen comprises: for example by Stuart and Young at " Solid Phase Peptide Systhesis; " Second edition; Pierce Chemical Company (1984), and at " Solid Phase Peptide Systhesis, " Methods Enzymol. 289, the method described in the Academic Press, Inc, New York (1997).
Medication
In the method for the invention, useful peptide is suffered the quantity of plastosome MPT or stops the significant quantity of MPT to give Mammals with minimizing.This significant quantity in preclinical phase test and clinical trial with the doctor with face and examine the method that the doctor is familiar with and measure.
In the method for the invention, the useful peptide of significant quantity preferably in pharmaceutical composition, can have the Mammals that needs through in the numerous known methods that give medical compounds any one.
This peptide can whole body administration or topical.In one embodiment, this peptide is an intravenous administration.For example, useful aromatic series cationic peptide can come administration through quick intravenous injection in the method for the present invention.Yet preferably this peptide comes administration with the mode of constant speed intravenous infusion.
This peptide can be injected directly in the coronary artery in for example angioplasty or coronary bypass, or is applied on the coronary stent.
This peptide also can be taken orally, topical, intranasal administration, intramuscular administration, subcutaneous administration or transdermal administration.In a preferred embodiment, the transdermal administration of the aromatic series cationic peptide in the inventive method realizes that through iontophoresis wherein charged peptide sees through skin through electric current and carries.
Other route of administration comprises Intraventricular or intrathecal drug delivery.The Intraventricular administration is meant in the chamber system that is administered to brain.Intrathecal drug delivery is meant in the subarachnoid gap that is administered to spinal cord.Therefore, Intraventricular or intrathecal drug delivery can be preferred for influencing the disease and the illness of cns organ or tissue.In a preferred embodiment, intrathecal drug delivery is used for trauma of spinal cord.
Peptide useful in the method for the present invention can also give Mammals through the mode that continues to discharge, and this is being known in the art.Sustained release administration is the medicament delivery method that reaches certain levels of drugs at special time period.This level is normally by serum or determination of plasma concentration.
Known any formulation all is applicable to the administration of aromatic series cationic peptide useful in the method for the present invention in the pharmacy field.For oral administration, can use the liquid or solid formulation.Some examples of formulation comprise: tablet, gel capsule, pill, lozenge, elixir, suspensoid, syrup, wafer, chewing agent (chewing gum) or the like.This peptide can with well known to a person skilled in the art appropriate drug carrier (vehicle) or mixed with excipients.The example of carrier or vehicle comprises: the clay of starch, milk, sucrose, some type, gel, lactic acid, Triple Pressed Stearic Acid or its salt (comprising Magnesium Stearate or calcium stearate), talcum, Vegetable oil lipoprotein or vegetables oil, natural gum and terepthaloyl moietie.
For whole body administration, Intraventricular administration, intrathecal drug delivery, topical, intranasal administration, subcutaneous administration or transdermal administration, the formulation of useful aromatic series cationic peptide can utilize traditional known thinner, carrier or vehicle etc. as being used for this area to carry this peptide in the inventive method.For example, this formulation can contain one or more following substances: stablizer, tensio-active agent is preferably nonionogenic tenside, and optional salt and/or damping fluid.This peptide can be carried with the form of the aqueous solution or dried frozen aquatic products.
Stablizer can be, for example the such amino acid of glycocoll; Or the oligosaccharides as sucrose, quaternary sugar, lactose or VISOSE.Another kind of optional scheme is, this stablizer can be, for example the such sugar alcohol of N.F,USP MANNITOL; Or their compsn.Preferably, stablizer or stabiliser compsn constituted peptide weight about 0.1% to about 10%.
Tensio-active agent is preferably nonionogenic tenside, like polysorbate.The example of suitable tensio-active agent comprises: polysorbas20, tween 80; Polyoxyethylene glycol or polyoxyethylene polyoxypropylene glycol (ether), 0.001% (w/v) is to the PluronicF-68 of about 10% (w/v) according to appointment.
Salt or damping fluid can be respectively any salt or damping fluids like sodium-chlor or sodium phosphate/potassium.Preferably, damping fluid makes the pH of pharmaceutical composition maintain about 5.5 in about 7.5 scope.Salt and/or damping fluid also are used for osmolarity is maintained the level that is suitable for to human or animal's administration.Preferably salt or damping fluid present the rough isotonic concentration of about 150 μ M to about 300 μ M.
In the method for the invention, the formulation of useful peptide can contain one or more additives commonly used in addition.Some examples of these additives comprise: the solubilizing agent as glycerine; Like benzalkonium chloride (mixture of quaternary ammonium compound is called " quaternary ammonium compound "), phenylcarbinol, chloretone or the such inhibitor of butylene-chlorohydrin; Narcotic as morphine derivatives; Or above-mentioned isotonic agent etc.For further anti-oxidation or other corruption, this pharmaceutical composition can be encapsulated in the bottle with impervious stopper and under nitrogen, preserve.
This Mammals can be any Mammals, comprises like farm-animals, like sheep, pig, ox and horse; Pet is like dog and cat; Laboratory animal is like rat, mouse and rabbit.In a preferred embodiment, this Mammals is the people.
Embodiment
Embodiment 1:[Dmt 1] the DALDA permeates cell membranes
Utilize human gut epithelial cell system (Caco-2) research [ 3H] [Dmt 1] cell of DALDA takes in, and confirm with SH-SY5Y cell (human nerve's blastoma cell), HEK293 cell (human embryos kidney cell) and CRFK cell (renal epithelial cell).Be coated with on 12 orifice plates of collagen (5 * 10 5Cells/well) monolayer was cultivated three days.At the 4th day, with the HBSS washed twice cell of preheating, then with 0.2ml contain 250nM [ 3H] [Dmt 1] HBSS of DALDA hatches different time until 1 hour in 37 ℃ or 4 ℃.
In the time of 5 minutes, in cell pyrolysis liquid, promptly can observe [ 3H] [Dmt 1] DALDA, and in the time of 30 minutes, reach steady-state level.Hatch in cell pyrolysis liquid, reclaim after 1 hour [ 3H] [Dmt 1] total amount of DALDA accounts for about 1% of total dose.Though [ 3H] [Dmt 1] absorption of DALDA is slack-off during than 37 ℃ in the time of 4 ℃, but in the time of 45 minutes, can reach 76.5% and in the time of 1 hour, reach 86.3%.[ 3H] [Dmt 1] internalization of DALDA is not limited to the Caco-2 cell, in SH-SY5Y cell, HEK293 cell and CRFK cell, also can observe.[ 3H] [Dmt 1] IC of DALDA estimates about higher 50 times than EC.
In one independently tests, with [the Dmt of finite concentration scope (1 μ M-3mM) 1] DALDA is in 37 ℃ of following incubated cells 1 hour.After incubation period finished, with HBSS washed cell 4 times, adding 0.2ml contained the 0.1N NaOH of 1%SDS in each hole.Then entocyte is transferred in the scintillation vial, and carried out radiocounting.For the radioactivity of internalization and the active area of surface bonding are separated, introduced acid pickling step.Before lysis, with cell with 0.2M acetic acid/0.05M NaCl of 0.2ml in hatching 5 minutes on ice.
[Dmt 1] DALDA takes in the Caco-2 cell is to use a kind of [Dmt through confocal laser scanning microscope, CLSM (CLSM) 1] fluorescence analogue (Dmt-dextrorotation l-arginine-phenylalanine(Phe)-dnsDap-NH of DALDA 2) confirm; Wherein dnsDap is β-dansyl-1-α, β-diaminopropionic acid).Cell cultures as previously mentioned, and on petridish at the bottom of (35mm) glass (MatTek Corp., Ashland, MA) tiling two days.Discard nutrient solution (base), cell was hatched 1 hour in 37 ℃ with the HBSS that 1ml contains 0.1 this fluorescence peptide analogs of μ M to 1.0 μ M.Use ice-cold HBSS washed cell 3 times then, and cover with the PBS of 200 μ l, then under the room temperature with have C-apochromatism 63 */Nikon confocal laser scanning microscope, CLSM that 1.2W proofreaies and correct object lens accomplished micro-imaging in 10 minutes.Excite through UV laser at 340nm, and measure emission light in the 520nm place.In order to carry out the optical fault micro-imaging on the z-direction, per 2.0 μ m are cut the 5-10 frame.
CLSM has confirmed the [Dmt with 0.1 μ M 1, DnsDap 4] DALDA in 37 ℃ hatch 1 hour after, fluorescence Dmt-dextrorotation l-arginine-phenylalanine(Phe)-dnsDap-NH 2Take in the Caco-2 cell.The absorption of fluorescence peptide is similar in the time of 37 ℃ and 4 ℃ the time.Though fluorescence diffusion occurred in whole kytoplasm, but be excluded in outside the nucleus fully.
Embodiment 2:[Dmt 1] the DALDA target navigates to plastosome
In order to detect [Dmt 1] ubcellular of DALDA distributes preparation fluorescence analogue [Dmt 1, AtnDap 4] DALDA (Dmt-dextrorotation l-arginine-phenylalanine(Phe)-atnDap-NH 2Wherein atn is β-o-amino benzoyl acyl group-1-α, β-diaminopropionic acid).This analogue contains β-anthranoyl-1-α, and β-diaminopropionic acid is with the lysine residue on the alternative site 4.Cell cultures such as embodiment 1 are said, and at the bottom of (35mm) glass petridish (MatTek Corp., Ashland MA) go up tiling 2 days.Discard nutrient solution, and contain 0.1 μ M [Dmt with 1ml 1, AtnDap 4] HBSS of DALDA is in 37 ℃ of incubated cells 15 minutes to 1 hour.
Cell also can be used the tetramethylrhodamin methyl esters, and (TMRM 25nM), a kind of dyes mitochondrial dyestuff, hatches 15 minutes under 37 ℃.Use ice-cold HBSS washed cell 3 times then, and cover with the PBS of 200 μ l, and under the room temperature with have C-apochromatism 63 */Nikon confocal laser scanning microscope, CLSM that 1.2W proofreaies and correct object lens accomplished micro-imaging in 10 minutes.
For [Dmt 1, AtnDap 4] DALDA, excite in the 350nm place through the UV laser apparatus, measure emission light at the 520nm place.For TMRM, excite at the 536nm place, and measure emission light in the 560nm place.
37 ℃ hatch at least 15 minutes after, CLSM shows fluorescence [Dmt 1, AtnDap 4] DALDA takes in the Caco-2 cell.Though the absorption of dyestuff is got rid of outside nucleus fully,, this blue dyes distributes yet demonstrating striated in tenuigenin.With TMRM plastosome is marked as redness.Through stack [Dmt 1, AtnDap 4] distribution of DALDA and the distribution of TMRM show [Dmt 1, AtnDap 4] plastosome of DALDA distributes.
Embodiment 3:[Dmt 1] DALDA takes in the plastosome
For separate mitochondria from the mouse liver, put to death mouse through detruncation.Liver is taken out and places fast refrigerative liver homogenate liquid.With scissors mouse liver is cut into tiny fragment, then with the manual homogenate of glass homogenizer.
With homogenate under 4 ℃, 1000 * g centrifugal 10 minutes.The sucking-off supernatant is also transferred in the polycarbonate pipe, and recentrifuge is 10 minutes under 4 ℃, 3000 * g.Abandoning supernatant, and carefully remove the grease on the pipe sidewall.
To precipitate resuspending in liver homogenate liquid, and twice of homogenate repeatedly.The plastosome of final purifying is precipitated resuspending in homogenate.The protein concentration that plastosome prepares in the process detects with the Bradford method.
To use at the plastosome of the about 1.5mg in the 400 μ l damping fluids [ 3H] [Dmt 1] DALDA hatched 5-30 minute in 37 ℃.Get off plastosome is centrifugal then, measure radioactive amount of plastosome part and buffer section.Suppose that the mitochondrial matrix volume is 0.7 μ l/mg albumen (Lim et al., J.Physiol545:961-974,2002), then find [ 3H] [Dmt 1] high 200 times in the concentration ratio damping fluid of DALDA in plastosome.Therefore, [Dmt 1] DALDA obtained concentrating in plastosome.
Based on these data, when using [Dmt 1] when DALDA pours into the guinea pig heart that exsomatizes, [Dmt 1] concentration of DALDA in plastosome can be estimated as:
[Dmt 1] the concentration 0.1 μ M of DALDA in coronary perfusion liquid
[Dmt 1] the concentration 5 μ Ms of DALDA in the myocyte
[Dmt 1] the concentration 1.0mM of DALDA in plastosome
Embodiment 4:Separated plastosome is to [Dmt 1] the gathering of DALDA (Fig. 1)
In order further to prove [Dmt 1] DALDA is that selectivity is distributed in the plastosome, we have detected [Dmt 1, AtnDap 4] DALDA with [ 3H] [Dmt 1] DALDA picked-up gets into the situation of separated mouse liver mitochondrion.Can observe the rapid cancellation of fluorescence after adding plastosome, show [Dmt 1, AtnDap 4] the quick picked-up (Figure 1A) of DALDA.Can cause the rapid unpolarized uncoupling agents FCCP of plastosome (right-(trifluoromethoxy)-phenylhydrazone carbonyl cyanide) pre-treatment plastosome, [Dmt with a kind of 1, AtnDap 4] picked-up of DALDA only reduces<20%.Therefore, [Dmt 1, AtnDap 4] picked-up of DALDA is not voltage-dependent.
In order to confirm that Mitochondrially targeted location is not the artefact (artifact) of fluorophore, we also detected [ 3H] [Dmt 1] plastosome of DALDA takes in.Separated plastosome usefulness [ 3H] [Dmt 1] DALDA hatches, and in plastosome deposition and supernatant detection of radioactive.From 2 minutes to 8 minutes, the radioactive amount in the deposition did not change.The plastosome of handling with FCCP only reduced be connected with the plastosome deposition [ 3H] [Dmt 1] the DALDA amount～20% (Figure 1B).
FCCP is to [Dmt 1] the faint influence of DALDA picked-up shows: [Dmt 1] DALDA possibly be connected with mitochondrial membrane or be arranged in intermembranous gap rather than be positioned at matrix.We are subsequently through using alamethicin to detect mitochondrial swelling to [Dmt to induce swelling and outer membrane rupture 1, AtnDap 4] influence in plastosome, gathered of DALDA.Different with TMRM, [Dmt 1] DALDA absorption only part reversed (Fig. 1 C) by mitochondrial swelling.Therefore, [Dmt 1] DALDA is connected with mitochondrial membrane.
Embodiment 5:[Dmt 1] DALDA do not change mitochondrial respiratory or current potential (Fig. 1 D)
[Dmt 1] DALDA gathering in plastosome do not change mitochondrial function.[Dmt with 100 μ M 1] DALDA hatches separated mouse liver mitochondrion and do not change the oxygen consumption in stage 3 and stages 4 process or change respiration rate (3/ stage 4 of stage) (6.2/6.0).Mitochondrial membrane potential is measured (Fig. 1 D) with TMRM.Add plastosome and cause the rapid cancellation of TMRM signal, this signal shows mitochondrial depolarization through adding FCCP quick-recovery soon.Add Ca 2+(150 μ M) causes rapid depolarize, simultaneous progressively to lose the cancellation indication of MPT.Add [Dmt separately 1] DALDA, even when 200 μ M, do not cause mitochondrial depolarization or MPT yet.
Embodiment 6:[Dmt 1] DALDA protective wire plastochondria avoids by Ca 2+With 3-nitropropionic acid inductive MPT (Fig. 2)
Except mitochondrial membrane potential not being had the direct influence [Dmt 1] DALDA can also the protective wire plastochondria avoids because Ca 2+The MPT that overload causes.Adding Ca 2+Before, with [Dmt 1] the separated plastosome of DALDA (10 μ M) pre-treatment 2 minutes, only cause of short duration depolarize to stop the beginning (Fig. 2 A) of MPT simultaneously.[Dmt 1] the DALDA dose-dependently increased the Ca of plastosome to accumulation 2+The tolerance that stimulates.Fig. 2 B shows [Dmt 1] DALDA increased the Ca of the adding that separated plastosome can tolerate before the MPT 2+Amount.
3-nitropropionic acid (3NP) is a kind of irreversible inhibitor of the succinodehydrogenase among the electron transport chain complex body II.In separated plastosome, add 3NP (1mM) and caused the decline of plastosome current potential, and caused the beginning (Fig. 2 C) of MPT.With [Dmt 1] DALDA pre-treatment plastosome dose-dependently ground delayed the beginning (Fig. 3 C) by 3NP inductive MPT.
In order to prove [Dmt 1] DALDA can pass cytolemma and protective wire plastochondria and avoid the mitochondrial depolarization that caused by 3NP, do not have or exist [Dmt 1] handled the Caco-2 cell 4 hours with 3NP (10mM) under the situation of DALDA (0.1 μ M), hatch with TMRM then and detection under LSCM.In control cells, can be clear that plastosome presents the stria shape in whole tenuigenin.In the cell of handling with 3NP, TMRM fluorescence significantly reduces, and shows general depolarize.In contrast, use [Dmt simultaneously 1] DALDA handles, the protective wire plastochondria is avoided the mitochondrial depolarization that caused by 3NP.
Embodiment 7:[Dmt 1] DALDA protective wire plastochondria avoids mitochondrial swelling and Lrax discharges
The opening of MPT hole causes mitochondrial swelling.We are through measuring the 540nm absorbancy (A of place 540) reduction detect [Dmt 1] DALDA is to the influence of mitochondrial swelling.Then that mitochondrial suspension is centrifugal, and with the Lrax in ELISA test kit detection line plastochondria deposition that is purchased and the supernatant.Suppressed by Ca with the separated plastosome of SS-02 pre-treatment 2+Transship caused swelling (Fig. 3 A) and and the release (Fig. 3 B) of Lrax.Except suppressing by Ca 2+Transship caused MPT, SS-02 can also suppress by MPP +The mitochondrial swelling that (1-methyl-4-phenylpyridinium (phenylpyridium) ion) causes, MPP +It is a kind of suppressor factor (Fig. 3 C) of the complex body I of plastosome electron transport chain.
Embodiment 8:Dextrorotation l-arginine-Dmt-Methionin-phenylalanine(Phe)-NH 2(D-Arg-Dmt-Lys-Phe-NH 2) (SS-31) can avoid MPT, mitochondrial swelling and Lrax release by the protective wire plastochondria.
Non-opioid peptide SS-21 has same protective wire plastochondria and avoids by Ca 2+The MPT that causes (Fig. 4 A), mitochondrial swelling (Fig. 4 B) and Lrax discharge the ability of (Fig. 4 C).Research method such as preceding research method to SS-02.In the present embodiment, mitochondrial swelling detects through the scattering of light at monitoring 570nm place.
Embodiment 9:[Dmt 1] DALDA (SS-02) and dextrorotation l-arginine-Dmt-Methionin-phenylalanine(Phe)-NH 2(D-Arg-Dmt-Lys-Phe-NH 2) (SS-31) protect cardiac muscle to avoid by the caused myocardial stunning of ischemia-reperfusion.
The sharp separation guinea pig heart, intubate is also poured into the mode of driving in the wrong direction in 34 ℃ with the Krebs-Henseleit solution (pH7.4) of oxidation to aorta in position subsequently.With the heart excision, place on improved Langendorff perfusion equipment then, and perfusion (40cm water column) under constant voltage.Be inserted into the hooklet of the left ventricle apex of the heart and the silk ribbon that firmly is connected on power-displacement transducer (transmitter) is measured convergent force with one.Coronary flow detects through regularly collecting Pulmonic elute.
With heart with damping fluid, [Dmt 1] DALDA (SS-02) (100nM) or dextrorotation l-arginine-Dmt-Methionin-phenylalanine(Phe)-NH 2(D-Arg-Dmt-Lys-Phe-NH 2) (SS-31) (1nM) perfusion 30 minutes, carry out 30 minutes whole body ischemic then.Pour into again with employed same solution before the ischemic.
Two-way analysis of variance demonstrates three treatment group and has significant difference aspect convergent force (P < 0.001=), heart rate (P=0.003) and the coronary artery flow velocity (P < 0.001).In the damping fluid group, convergent force reduces (Fig. 5) before than ischemic greatly between flush phase again.The heart of handling with SS-02 and SS-31 has much better ischemic tolerance (Fig. 5) than the heart of handling with damping fluid.Especially SS-31 can suppress heart fully and pauses and press down.In addition, the coronary artery flow velocity has kept stable well in dabbling whole process again, does not have heart rate to reduce.
Embodiment 10:[Dmt 1] DALDA (SS-02) improved the organ preservation
For heart transplantation, in transportation, donor's heart is kept in the cardioplegic solution.This preservation liquid contains high potassium, can stop heartbeat effectively and preserve energy.Yet the survival time of isolated heart remains very limited.
We are to [Dmt 1] the DALDA survival that whether prolongs organ tests.In these researchs, with [Dmt 1] DALDA joins (St.Thomas) in the cardioplegic solution commonly used and detect after the ischemic that prolongs, [Dmt 1] whether DALDA can improve the survival (model of the external survival of intracorporeal organ) of heart.
Separated guinea pig heart pours into the mode of driving in the wrong direction in 34 ℃ with the Krebs-Henseleit solution of oxidation.After stablizing 30 minutes, heart is with containing or do not contain 100nM [Dmt 1] cardioplegic solution CPS (St.Tohomas) perfusion 3 minutes of DALDA.Then through blocking coronary perfusion 90 minutes fully to cause the whole body ischemic.Krebs-Henseleit solution with oxidation carries out 60 minutes and reperfusion subsequently.Continuous monitoring convergent force, heart rate and coronary artery flow velocity in the whole test.
Add [Dmt in the cardioplegic solution 1] DALDA significantly improved the contractile function (Fig. 6) after the ischemic that prolongs.

Claims (2)

1. the peptide of a kind as following molecular formula:
D-Arg-2’，6’-Dmt-Lys-Phe-NH 2。
2. compsn, it comprises the peptide like following molecular formula:
D-Arg-2’，6’-Dmt-Lys-Phe-NH 2，
And pharmaceutical carrier.
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