CN106074547A - Second pyridine is as the purposes of indole amine 2,3-dioxygenase-1 inhibitor - Google Patents

Second pyridine is as the purposes of indole amine 2,3-dioxygenase-1 inhibitor Download PDF

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Publication number
CN106074547A
CN106074547A CN201610410371.6A CN201610410371A CN106074547A CN 106074547 A CN106074547 A CN 106074547A CN 201610410371 A CN201610410371 A CN 201610410371A CN 106074547 A CN106074547 A CN 106074547A
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ido1
disease
pyridine
inhibitor
purposes
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李庆
王�忠
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Sun Yat Sen University
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Sun Yat Sen University
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/438The ring being spiro-condensed with carbocyclic or heterocyclic ring systems

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The present invention passes through second pyridine or its pharmaceutically acceptable salt as indoleamine 2, the purposes of 3 dioxygenases 1 inhibitor (IDO1), second pyridine is for indoleamine 2, the inhibitory action of 3 dioxygenases 1, IDO1 facilitation in disease development is hindered and/or destroys, thus the disease mediated for treatment IDO1 provides good prospect.

Description

Second pyridine is as the purposes of indole amine 2,3-dioxygenase-1 inhibitor
Technical field
The present invention relates to second pyridine (homidium) as indole amine 2,3-dioxygenase-1(IDO1) new application and Application in the disease of preparation treatment IDO1 mediation.
Background technology
Indole amine 2,3-dioxygenase-1 [EC 1.13.11.17] (IDO1) be a kind of at intracellular, monomer containing blood red Cellulose protein, catalysis l-tryptophan (Trp) catabolism becomes the first step of kynurenine pathway.IDO1 metabolite, N-first Acyl kynurenin (N-formylkynurenine), is metabolized to other bioactive molecule further.IDO1 has at multiple tissues Express, including lung, small intestinal, Placenta Hominis, spleen and nervus centralis.IDO1 in many cell types can by inflammatory cytokine (as Interferon gamma, escherichia coli endotoxin and tumor necrosis factor-alpha etc.) stimulate cause expression.IDO1 also offers carefully at host antigen Born of the same parents (APC), Monocyte-macrophages and tumor cell are expressed.
IDO1 is as immunosuppressant and a kind of important mechanisms of toleration, anti-at autoimmune disease, transplant rejection Play an important role in Ying.IDO1, by consuming the concentration of local T rp, suppresses T cell and the activity of NK cell, induces modulability The formation of T cell.By these mechanism, IDO provides the immunoreation of feedback control.Research find, if IDO ovarian cancer, High expressed in colorectal cancer and other tumor cells, then tumour patient prognosis is poor, thus it can play the prediction of oncotherapy Effect.
IDO1 can also work as target spot in kinds of tumors.Such as, swollen in ovarian cancer, colorectal cancer and endometrium In tumor, IDO1 expression raises.In preclinical model, IDO1 promotes the life of tumor by suppression anti tumor immune response Long.In these models, micromolecular inhibitor IDO1 can recover immunologic tumor rejection phenomenon and improve Common Chemotherapy medicine Activity.These data support that IDO1 inhibitor, as new type anticancer medicine, can be combined with existing therapy.Except treatment cancer, IDO1 inhibitor to other diseases, as sepsis induction hypotension, schizophrenia, Alzheimer's disease and parkinson disease, Cataract also functions to effect.These find the development interest promoted IDO inhibitor medicine, particularly cancer immunotherapy.? Widely studied IDO inhibitor is 1-methyl-tryptophan.It is nearest it is demonstrated experimentally that 1-methyl-tryptophan can be with substantial amounts of clinic Relevant chemotherapy drugs in combination uses, and plays synergism.1-methyl-tryptophan and cyclophosphamide, cisplatin, amycin or Ramulus et folium taxi cuspidatae The combination of alcohol can cure the mouse breast cancer model of neu induction.
At present, international market has a few class IDO1 inhibitor in clinical experiment, such as Novel IDO 1 inhibitor INCB024360 By Incyte company exploitation treatment late malignant tumour.But, IDO1 inhibitor quantity generally is the most less, and laboratory or Clinical effectiveness still has much room for improvement.
Summary of the invention
One aspect of the present invention relates to second pyridine or its pharmaceutically acceptable salt as a kind of indole amine 2,3-dioxygenase-1 The purposes of inhibitor (IDO1).
Another aspect of the present invention provides second pyridine or its pharmaceutically acceptable salt in the disease of preparation treatment IDO1 mediation Application in medicine.
In some embodiments, pharmaceutically acceptable salt refers to hydrobromate.
In some embodiments, the disease of described IDO1 mediation refers to the disease of IDO1 up-regulated, including but do not limit In, tumor, sepsis induction hypotension, schizophrenia, Alzheimer's disease and parkinson disease and cataract.
In some embodiments, described tumor is selected from ovarian cancer, colorectal cancer and endometrial tumors.
The structural formula of Ethidum Eremide is shown below, and existing document shows that it is a kind of fluorescent dye (CN102634569A), it is used for detecting sample genomic dna.Ethidum Eremide can pass through suitable side well known by persons skilled in the art Method prepares, and a kind of exemplary preparation method sees Osadchii, S. A. et al., Russian Journal of Applied Chemistry, 84(9), 1541-1548; 2011
The present invention expects that " pharmaceutically acceptable salt " of second pyridine also has identical activity.Generally, this salt will be such as by swimming From acid or these compounds of alkali form and the suitable alkali of stoichiometric amount or acid in water or in organic solvent or at both Mixture in prepare.Generally, non-aqueous media such as ether, ethyl acetate, ethanol, isopropanol or acetonitrile are preferred.Acid adds The example becoming salt includes inorganic acid addition salt such as, hydrochlorate, hydrobromate, hydriodate, sulfate, nitrate, and organic Acid-addition salts, such as such as acetate, maleate, fumarate, citrate, oxalates, succinate, tartrate, Herba Marsileae Quadrifoliae Fruit acid salt, mandelate and tosilate.The example of base addition salts includes inorganic salt such as sodium, potassium, calcium, ammonium, magnesium, aluminum and lithium Salt;And organic base such as ethylenediamine, ethanolamine, N, N-dialkylethanolamines, triethanolamine, glycosamine and alkaline amino acid salt.
Present invention demonstrates the second pyridine inhibitory action for IDO-1, occur to send out in disease to IDO1 Facilitation in exhibition carries out hindering and/or destroying, thus the disease mediated for treatment IDO1 provides good prospect.
Accompanying drawing explanation
Fig. 1 is that Ethidum Eremide is to indole amine 2,3-dioxygenase-1(IDO1) the curve chart of inhibitory action.
Detailed description of the invention
The present invention now will explain in conjunction with following experiment and accompanying drawing further, it should be noted that these experimental examples and accompanying drawing Should not be construed as limitation of the present invention.
Kynurenin Specification Curve of Increasing
1. the 0.5M kaliumphosphate buffer (pH 6.5) of standard medium (200 μ L): 20 μ L, final concentration of 50 mM;20μL 0.2M ascorbic acid, final concentration of 20 mM;The 0.5mM methylene blue of 4 μ L, final concentration of 10 μMs;The 5mg/ml peroxide of 4 μ L Change hydrogen enzyme, final concentration of 100 μ g/ml;The dd-H of 132 μ L2O;The kynurenin solution of 20 μ L, final concentration is respectively 0, and 1, 5,7.5,10,25,50,75 and 100 mM.
2. after adding the 1M NaOH solution of 40 μ L, centrifugal culture medium (11,500rpm, 4 ° of C, 15min).
3. the supernatant of 200 μ L is transferred on 96 hole microtitration plates, measures fluorescence intensity (λ ex 360nm, λ em 480nm)。
Quantification of protein
Protein IDO1 content is measured by BCA method.Solution absorption value is measured, subsequently with bovine serum albumin at λ max 570nm White standard curve (0-2 mg/ml) checks, to obtain protein concentration.
Activity experiment
1. the 0.5M kaliumphosphate buffer (pH 6.5) of standard test culture medium (200 μ L): 20 μ L, final concentration of 50 mM;20 The 0.2M ascorbic acid of μ L, final concentration of 20 mM;The 0.5mM methylene blue of 4 μ L, final concentration of 100 μ g/ml;20 μ L's 2mM L-tryptophan, final concentration of 200 μMs;The dd-H of 112 μ L2O;The IDO1 of 20 μ L, final concentration of 0 to 10 μ g/ml.
2. comparison: with the dd-H of 20 μ L2O substitutes IDO1.
3., after adding the 1M NaOH solution of 40 μ L, 60 ° of C of mixture hatch 15min, with by N-formoxyl kynurenin water Solve as kynurenin.It is centrifuged culture medium (11,500rpm, 4 ° of C, 15min) subsequently.
4. the supernatant of 200 μ L is transferred on 96 hole microtitration plates, measures fluorescence intensity (λ ex 360nm, λ em 480nm)。
Inhibition test
1. the 0.5M kaliumphosphate buffer (pH 6.5) of standard test culture medium (200 μ L): 20 μ L, final concentration of 50 mM;20 The 0.2M ascorbic acid of μ L, final concentration of 20 mM;The 0.5mM methylene blue of 4 μ L, final concentration of 10 μMs;The 5mg/ml of 4 μ L Catalase, final concentration of 100 μ g/ml;The dd-H of 112 μ L2O;The 4mM L-tryptophan of 10 μ L, final concentration of 200 μ M;The 5 μ g/ml IDO1 of 20 μ L and 10 μ l inhibitor (1-methyl-L-tryptophan) solution in DMSO, final concentration is respectively For 0,0.1,0.5 and 1mM.
2. comparison is (i): with the dd-H of 10 μ L2O substitutes L-Trp.
3. comparison is (ii): with the dd-H of 30 μ L2O substitutes L-Trp and IDO1.
4., after adding the 1M NaOH solution of 40 μ L, 60 ° of C of mixture hatch 15min, with by N-formoxyl kynurenin water Solve as kynurenin.It is centrifuged culture medium (11,500rpm, 4 ° of C, 15min) subsequently.
5. the supernatant of 200 μ L is transferred on 96 hole microtitration plates, measures fluorescence intensity (λ ex 360nm, λ em 480nm)。
6. calculating suppression ratio with formula (100-(A/Bx100)), wherein A represents the activity of IDO1, B when there is inhibitor Represent the activity of IDO1 when there is not inhibitor.Result is shown in Fig. 1, and the relevant parameter obtained from figure is shown in Table 1.
The inhibitory action of table 1. Ethidum Eremide
Compound name IC50(uM) Hillslope R square
Ethidum Eremide 9.327 -0.7586 0.9033

Claims (6)

1. second pyridine or its pharmaceutically acceptable salt are as the purposes of indole amine 2,3-dioxygenase-1 inhibitor.
The most according to claim 1, purposes, wherein pharmaceutically acceptable salt is hydrobromate.
3. second pyridine or the application in the medicine of the disease of preparation treatment IDO1 mediation of its pharmaceutically acceptable salt.
Application the most according to claim 3, the disease of wherein said IDO1 mediation refers to the disease of IDO1 up-regulated.
5., according to the application described in claim 3 or 4, the disease of wherein said IDO1 mediation is low selected from tumor, sepsis induction Blood pressure, schizophrenia, Alzheimer's disease and parkinson disease and cataract.
Application the most according to claim 5, wherein said tumor is selected from swollen in ovarian cancer, colorectal cancer and endometrium Tumor.
CN201610410371.6A 2016-06-13 2016-06-13 Second pyridine is as the purposes of indole amine 2,3-dioxygenase-1 inhibitor Pending CN106074547A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101301289A (en) * 2008-05-22 2008-11-12 中国科学院微生物研究所 Uses of berberine and analog thereof in pump for reversing multidrug resistance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101301289A (en) * 2008-05-22 2008-11-12 中国科学院微生物研究所 Uses of berberine and analog thereof in pump for reversing multidrug resistance

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DAVID SHUM等: "A high density assay format for the detection of novel cytotoxic agents in large chemical libraries", 《JOURNAL OF ENZYME INHIBITION AND MEDICINAL CHEMISTRY》 *
RAWLE FRANCIS等: "Targeting Telomerase via Its Key RNA/DNA Heteroduplex", 《BIOORGANIC CHEMISTRY》 *
陆涛 等: "端粒酶抑制剂的研究-与G-四链体相互作用的菲啶衍生物的设计、合成与生物活性研究", 《中国药科大学学报》 *

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