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CN118873532B - Application of trisubstituted pyrazole compound in preparation of medicines for inhibiting osteoclast differentiation - Google Patents

Application of trisubstituted pyrazole compound in preparation of medicines for inhibiting osteoclast differentiation Download PDF

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CN118873532B
CN118873532B CN202411396736.5A CN202411396736A CN118873532B CN 118873532 B CN118873532 B CN 118873532B CN 202411396736 A CN202411396736 A CN 202411396736A CN 118873532 B CN118873532 B CN 118873532B
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pyrazole compound
trisubstituted pyrazole
osteoclast differentiation
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CN118873532A (en
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陈建权
邵加安
张远南
祝华建
张建康
项超威
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Hangzhou City University
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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Abstract

The invention discloses an application of a trisubstituted pyrazole compound in preparation of a medicament for inhibiting osteoclast differentiation, and belongs to the field of medicaments. The invention utilizes a plurality of experimental means such as tartaric acid phosphatase (TRAP) staining, reverse transcription real-time fluorescence quantitative PCR (qPCR), western immunoblotting (Western blot) and the like, and proves that the trisubstituted pyrazole compound of the following formula can obviously promote the expression of antioxidant proteins HO-1 and Catalase, thereby effectively inhibiting the differentiation and the generation of osteoclasts. Therefore, the trisubstituted pyrazole compound provided by the invention can be used as a candidate compound for developing a novel osteoclast differentiation inhibitor and treating diseases caused by overactivation of osteoclasts.

Description

Application of trisubstituted pyrazole compound in preparation of medicines for inhibiting osteoclast differentiation
Technical Field
The invention belongs to the field of medicines, and particularly relates to an application of a trisubstituted pyrazole compound in preparation of a medicament for inhibiting osteoclast differentiation.
Background
Osteoclasts (osteoclasts, ocs) are the only known cells responsible for bone resorption in vivo, and are derived from the differentiation and maturation of osteoclast precursor cells (e.g. bone marrow mononuclear/macrophages) derived from hematopoietic stem cells under the action of various factors, with RANKL action being particularly critical. RANKL activates downstream signal pathways such as NF- κ B, MAPK through binding to the receptor RANK on the osteoclast precursor cells, thereby up-regulating transcription factors such as NFATc1, c-Fos, and thereby regulating transcription of osteoclast specific genes, and finally promoting osteoclast formation and activation. Osteoclasts play a vital role in normal bone development and remodeling. However, abnormal increases in osteoclast number and/or activity can lead to various osteolytic diseases such as osteoporosis, rheumatoid arthritis, peri-prosthetic osteolysis, and cancer metastasis bone destruction. Inhibition of osteoclast differentiation and bone resorption is one of the currently accepted primary means of treating such diseases.
Currently, the most widely used anti-bone resorption drugs in clinic include bisphosphonates, the rank L monoclonal antibody diels (Denosumab), calcitonin, selective estrogen receptor modulators (raloxifene), and the like. The application of bisphosphonates and dieldrake has the risks of mandibular necrosis and atypical femur fracture, the rebound of dieldrake when it is deactivated, the possibility of potential increase of tumor risk when calcitonin is used for a long period of time, and the risk of venous embolism caused by raloxifene. Therefore, the existing anti-bone resorption drugs have obvious defects. Therefore, there is an urgent need for a novel safe and effective medicament for treating osteolytic diseases such as osteoporosis by inhibiting osteoclast differentiation and function.
Intracellular Reactive Oxygen Species (ROS) play a vital role in the process of osteoclast formation and bone resorption. While osteoclast precursor cells produce endogenous ROS upon RANKL stimulation, the use of ROS scavengers such as N-acetylcysteine (NAC) can inhibit RANKL-mediated ROS production, thereby inhibiting osteoclastogenesis, indicating that ROS are necessary for osteoclast differentiation. Within the cell are a number of antioxidant enzymes that antagonize ROS, such as heme oxygenase-1 (HO-1) and catalase (Catalase), and enhancing expression of these antioxidant enzymes scavenges ROS, thereby inhibiting the formation of osteoclasts. Therefore, targeted inhibition of ROS can be used as a novel strategy for inhibiting osteoclast differentiation, thereby treating bone-soluble diseases such as osteoporosis.
Disclosure of Invention
In view of the above, the embodiment of the application provides an application of a trisubstituted pyrazole compound in preparation of a medicament for inhibiting osteoclast differentiation.
According to the embodiment of the application, the structural formula of the trisubstituted pyrazole compound is shown as the formula (1):
wherein R 1 is phenyl or substituted phenyl, substituent is selected from halogen such as fluorine, chlorine and the like, methoxy, R 2 is phenyl or substituted phenyl, substituent is selected from halogen such as fluorine, chlorine and the like, methyl, ethyl and phenyl.
More preferably, the trisubstituted pyrazole compound may have any of the following specific structural formulas Y-1, Y-2, Y-3, Y-4 and Y-5:
the application of the trisubstituted pyrazole compound in preparation of osteoclast differentiation inhibitors.
The trisubstituted pyrazole compound can be used for preparing medicines for treating osteolytic diseases by inhibiting osteoclast differentiation, so as to inhibit overactivation of osteoclasts in osteolytic diseases, and can also be used for preparing medicines for treating osteoporosis, tumor metastasis bone destruction or rheumatoid arthritis.
The medicament can be in various forms such as tablets, pills, powder, capsules, injection, oral liquid, ointment, cream and the like, and the medicaments in various forms can be prepared according to a conventional method in the pharmaceutical field. The administration mode can be oral administration, injection or external application.
The medicine comprises an active ingredient trisubstituted pyrazole compound and pharmaceutically acceptable pharmaceutic adjuvant. The auxiliary materials comprise diluents, excipients, fillers, adhesives, wetting agents, disintegrating agents, absorption promoters, surfactants, adsorption carriers, lubricants and the like which are conventional in the pharmaceutical field.
Use of a trisubstituted pyrazole compound as described above for the manufacture of a medicament for inhibiting the expression of an osteoclast differentiation-critical protein, the osteoclast differentiation-critical protein being a c-Fos, nfatt 1, src or Ctsk protein.
The trisubstituted pyrazole compound is applied to preparing medicaments for inhibiting ROS and medicaments for improving the expression of antioxidant proteins such as HO-1, catalase and the like.
According to the invention, an RANKL-induced mouse bone marrow macrophage osteoclast differentiation model is adopted, and experiments prove that the trisubstituted pyrazole compound can directly and effectively inhibit bone marrow macrophage differentiation to osteoclast without obvious cytotoxicity by improving antioxidant proteins such as HO-1, catalase and the like and down-regulating the expression of osteoclast differentiation key proteins such as c-Fos, nfatc1 and the like, so that the trisubstituted pyrazole compound can be used as a candidate compound for developing novel osteoclast differentiation inhibitors and treating diseases caused by overactivation of osteoclasts. Therefore, the invention has great clinical significance and application prospect.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
FIG. 1 is a graph depicting inhibition of RANKL-induced osteoclast differentiation by evaluation of 5. Mu.M trisubstituted pyrazole compounds Y-1, Y-2, Y-3, Y-4 and Y-5 by tartrate-resistant acid phosphatase (TRAP) staining.
FIG. 2 shows the result of the test for cytotoxicity of trisubstituted pyrazole compound Y-3 against bone marrow macrophages by the CCK-8 method. The data are expressed as mean.+ -. Standard deviation, and there is no significant difference in OD 450 values for each Y-3 treated group compared to the control group without Y-3 added.
FIG. 3 is a graph showing evaluation of the dose effect of trisubstituted pyrazole compound Y-3 on inhibition of osteoclast differentiation by tartaric acid-resistant acid phosphatase (TRAP) staining. And A. TRAP staining result, B. Quantitative analysis. Data are expressed as mean ± standard deviation of p <0.05, p <0.01, p <0.001, p <0.0001 compared to RANKL-treated group without Y-3.
FIG. 4 shows the effect of reverse transcription real-time fluorescent quantitative PCR (qPCR) detection of trisubstituted pyrazole compound Y-3 on RANKL induced osteoclast differentiation related gene expression. P <0.0001 compared to RANKL-treated group without Y-3.
FIG. 5 shows the effect of Western blot (Western blot) detection of trisubstituted pyrazole compound Y-3 on the expression of osteoclast differentiation-related proteins and antioxidant proteins during osteoclast differentiation. A. 5. Mu.M of Y-3 effects on the expression of Nfatc, c-Fos, ctsk and Src, etc., and B.5. Mu.M of Y-3 effects on the expression of antioxidant proteins Catalase and HO-1.
Detailed Description
The invention will be further described with reference to specific embodiments. The following examples are merely illustrative of the invention and are not intended to limit the invention in any way. The examples provided below are intended as guidelines for further modifications by one of ordinary skill in the art and are not to be construed as limiting the invention in any way.
The experimental methods in the following examples, unless otherwise specified, are conventional methods, and are carried out according to techniques or conditions described in the literature in the field or according to the product specifications. Materials, reagents and the like used in the examples described below are commercially available unless otherwise specified. Unless otherwise indicated, the quantitative tests in the examples below were all performed in triplicate, and the results averaged.
EXAMPLE 1 preparation of trisubstituted pyrazole Compounds and identification thereof
A clean 25mL schlenk tube was taken, 1.0 mmol,2.0 equivalents of S-ylide 1, 0.5 mmol,1.0 equivalents of diazonium tetrafluoroborate 2 and 1.0 mmol,1.5 mmol,3.0 equivalents of NaOH were added and dissolved in 10 mL acetonitrile and stirred at room temperature for 48 hours. After the reaction is completed by TLC (thin layer chromatography) plate, the reaction solution is decompressed and concentrated, and the crude product is directly stirred with silica gel and then is subjected to column chromatography (ethyl acetate: petroleum ether=12.5%), thus obtaining the target product 3, which can be specifically:
(1- (p-tolyl) -1H-pyrazole-3, 4-diyl) bis (phenylketone)
White powder (98 mg), 80% yield, melting point :99.3−101.0 °C;1H NMR (400 MHz, CDCl3):δ8.30 (s, 1H), 8.14−7.99 (m, 2H), 7.89−7.76 (m, 2H), 7.67 (d,J= 8.4 Hz, 2H), 7.60−7.48 (m, 2H), 7.48−7.35 (m, 4H), 7.31 (d,J= 8.0 Hz, 2H), 2.42 (s, 3H)13C NMR (100 MHz, CDCl3):δ189.2, 188.1, 151.2, 138.3, 138.2, 136.7, 136.7, 133.2, 132.9, 130.2, 130.2, 130.1, 129.1, 128.5, 128.3, 125.0, 119.9, 21.0..HRMS (ESI): m/z calcd for [M+H]+: 367.1441, found: 367.1438.
(1- (3-Fluorophenyl) -1H-pyrazole-3, 4-diyl) bis (phenylketone)
White powder (79 mg), 64% yield, melting point :151.0−151.9 °C;1H NMR (400 MHz, DMSO-d6):δ9.24 (s, 1H), 8.02 (d,J= 7.6 Hz, 2H), 7.97−7.85 (m, 4H), 7.73−7.66 (m, 2H), 7.64−7.50 (m, 5H), 7.31 (t,J= 8.2 Hz, 1H).13C NMR (100 MHz, DMSO-d6):δ193.4, 193.1, 167.7 (d,J= 244.4 Hz), 156.6, 145.3 (d,J= 10.6 Hz), 142.5, 141.3, 139.1, 138.5, 136.8 (d,J= 9.7 Hz), 135.0, 134.4, 134.0 (d,J= 3.5 Hz), 129.2, 120.9, 119.9 (d,J= 21.0 Hz), 112.5 (d,J= 26.3 Hz), 112.3 (d,J= 3.5 Hz).HRMS (ESI): m/z calcd for [M+H]+: 371.1190, found: 371.1192.
(1- (4-Fluorophenyl) -1H-pyrazole-3, 4-diyl) bis (phenylketone)
White powder (80 mg), 65% yield, melting point :92.3−94.1 °C;1H NMR (400 MHz, CDCl3):δ8.29 (s, 1H), 8.06 (d,J= 7.2 Hz, 2H), 7.81 (m, 4H), 7.64−7.48 (m, 2H), 7.46−7.32 (m, 4H), 7.30−6.98 (m, 2H).13C NMR (100 MHz, CDCl3):δ189.0, 188.0, 162.1 (d, J= 248.6 Hz), 151.6, 138.1, 136.6, 135.3 (d,J= 2.8 Hz), 133.4, 133.0, 130.2, 129.1, 128.5, 128.4, 125.3, 121.9 (d,J= 8.5 Hz), 116.7 (d,J= 23.3 Hz).HRMS (ESI): m/z calcd for [M+H]+: 371.1190, found: 371.1196.
(1-Phenyl-1H-pyrazole-3, 4-diyl) bis ((4-fluorophenyl) methanone)
White powder (84 mg), 65% yield, melting point :134.5−136.5 °C;1H NMR (400 MHz, CDCl3):δ8.32 (s, 1H), 8.26−8.18 (m, 2H), 7.92−7.85 (m, 2H), 7.78 (d,J= 7.6 Hz, 2H), 7.54 (t,J= 7.6 Hz, 2H), 7.46−7.41 (m, 1H), 7.14 (t,J = 8.6 Hz, 2H), 7.09 (t,J= 8.6 Hz, 2H).13C NMR (100 MHz, CDCl3):δ187.9, 186.1, 167.16 (d,J= 254.1 Hz), 164.6 (d,J= 253.5 Hz), 151.1, 139.0, 134.5 (d,J= 2.9 Hz), 133.3 (d,J= 9.4 Hz), 132.9 (d,J= 2.9 Hz), 131.9 (d,J= 9.4 Hz), 130.1, 130.0, 128.5, 125.3, 120.1, 115.9 (d,J= 21.9 Hz), 115.7 (d,J= 21.7 Hz).HRMS (ESI): m/z calcd for [2M + Na]+: 799.1939, found: 799.1946.
(1- [1,1' -Diphenyl ] -2-yl) -1H-pyrazole-3, 4-diethyl) -bis (phenylketone)
White powder (101 mg), 71% yield, melting point :115.3−116.5 °C;1H NMR (400 MHz, CDCl3):δ7.90 (d,J= 4.4 Hz, 2H), 7.72 (s, 1H), 7.59−7.50 (m, 7H), 7.49−7.46 (m, 4H), 7.43−7.38 (m, 2H), 7.35−7.27 (m, 2H), 7.26−7.22 (m, 2H).13C NMR (100 MHz, CDCl3):δ188.4, 188.0, 151.1, 138.3, 137.9, 137.4, 137.3, 136.6, 135.0, 133.2, 132.8, 131.3, 130.3, 129.6, 129.2, 129.0, 128.8, 128.7, 128.4, 128.3, 128.0, 126.4, 123.9.HRMS (ESI): m/z calcd for [M+H]+: 429.1598, found: 429.1603.
EXAMPLE 2 TRAP staining evaluation of the inhibition of RANKL-induced osteoclast differentiation by trisubstituted pyrazole compounds Y-1, Y-2, Y-3, Y-4 and Y-5
(1) Mouse bone marrow macrophage isolated culture and digestion plate
Removing sudden death from 6-8 week old mice, sterilizing the whole body of the mice with alcohol, taking out femur and tibia of hind limbs of the mice, removing meat on bones, removing cartilage on knee joints, rapidly centrifuging (stopping when the revolution rises to 10000 rpm) in a centrifuge to obtain bone marrow, blowing the bone marrow uniformly with alpha-MEM culture solution (abbreviated as complete culture medium) containing 10% fetal calf serum and 1% penicillin/streptomycin double antibody, spreading the bone marrow in a cell culture dish of 10 cm for 1 day, taking supernatant, centrifuging at 1000 rpm for 4 min, discarding supernatant, culturing the obtained precipitate uniformly with complete culture medium containing 15 ng/mL M-CSF for 2 days, and obtaining adherent cells as bone marrow macrophages. When bone marrow macrophages grew to about 90%, they were washed 2 times with pre-warmed Dulbecco Phosphate Buffer Solution (DPBS), 2 mL pancreatin was added to the petri dish and left to stand 2 min in an incubator at 37 ℃ in the absence of light. After most of the cell morphology is rounded, the cell dish is tapped to loosen the adherent cells. Immediately adding 2 mL complete culture medium, stopping pancreatin reaction, and repeatedly blowing off adherent cells with gun tip to make all cells fall off from the bottom of the dish. The cells were collected in a centrifuge tube, 1000 rpm, centrifuged 4, min, the supernatant discarded, and the pellet was blown up with an appropriate amount of complete medium to obtain a bone marrow macrophage suspension. mu.L was aspirated with a pipette and counted under a 10-fold microscope using a cell counting plate. Cell densities of 4×10 5/well in 6-well plates, 1×10 5/well in 24-well plates, 5000/well in 96-well plates were plated;
(2) Osteoclast differentiation Induction and TRAP staining experiments
The bone marrow macrophages described above were plated into 24-well plates at 1X 10 5 cells per well. The cells were cultured in complete medium containing 15 ng/mL M-CSF for 1 day. Cells were replaced with osteoclast differentiation induction medium (complete medium containing 15 ng/mL M-CSF and 100 ng/mL RANKL) containing 5. Mu.M of different trisubstituted pyrazole compounds (Y-1, Y-2, Y-3, Y-4 or Y-5) dissolved in dimethyl sulfoxide (DMSO) or an equal volume of dimethyl sulfoxide (DMSO) solvent after cell attachment, the solution was changed every 2 days, cells in 24 well plates were washed 2 times with DPBS, fixed 10min times with 300. Mu.L of 4% PFA at room temperature, and washed 1 time with DPBS when a large number of osteoclasts (about 5 days) were present in the control group (i.e., DMSO-only). After DPBS removal, cells were stained with tartrate-resistant acid phosphatase (TRAP) to assess the formation of each group of osteoclasts (i.e., cells with trap+ and more than 3 nuclei). As shown in FIG. 1, 5. Mu.M trisubstituted pyrazole compounds Y-1, Y-2, Y-3, Y-4 and Y-5 all had a significant inhibitory effect on osteoclast formation.
Experimental example 3 CCK-8 detection of cytotoxicity of trisubstituted pyrazole Compound Y-3 on bone marrow macrophages
The mouse bone marrow macrophages were isolated from the mouse bone marrow and cultured as described above, spread into 96-well plates at 5000 cells per well, and cultured in complete medium containing 15 ng/mL M-CSF for 1 day. Dividing cells into 7 groups of 0, 0.3125, 0.625, 1.25, 2.5, 5 or 10 mu M Y-3, setting 6 repeats each, culturing the cells after the cells are attached, changing the culture medium into a complete culture medium containing 15 ng/mL M-CSF and the Y-3 with different concentrations, removing the complete culture medium respectively at the time of 24 hours, 48 hours and 72h, washing the cells with a proper amount of DPBS for 1-2 times, adding 100 mu L of 10% CCK-8 reagent into each hole, culturing in a 37 ℃ incubator in dark for 30 min, and finally detecting the OD value at 450 nm by an enzyme-labeled instrument. As shown in FIG. 2, the OD values obtained in the Y-3 treated group were not significantly different from those obtained in the non-Y-3 treated group at 24h,48h and 72h, indicating that the concentration of Y-3 at 10. Mu.M and below was not cytotoxic to bone marrow macrophages.
Experimental example 4 TRAP staining to detect dose Effect of trisubstituted pyrazole Compound Y-3 on inhibition of osteoclast formation
Mouse bone marrow macrophages were isolated from mouse bone marrow and cultured as described above, plated in 24 well plates at 1X 10 5 cells per well, and the cells were divided into 8 groups (including NM group and 0, 0.3125, 0.625, 1.25, 2.5, 5 or 10. Mu.M Y-3 treated groups, 3 replicates each) and cultured for 1 day in complete medium containing 15 ng/mL M-CSF. After the cells had attached, the cells were replaced with fresh complete medium (NM group) or osteoclast differentiation induction medium containing Y-3 at the above-mentioned different concentrations, and the liquid was changed every 2 days, and when a large number of osteoclasts (about 5 days) were present in the control group (i.e., 0. Mu.M Y-3 group), the formation of each group of osteoclasts (i.e., cells having TRAP+ and more than 3 nuclei) was evaluated by staining with anti-tartrate acid phosphatase (TRAP). TRAP staining results showed (FIG. 3) that Y-3 inhibited osteoclast formation dose-dependently, and that both the number and size of osteoclasts were significantly reduced in the 0.625. Mu.M treatment, and more significantly in the 1.25 and 2.5. Mu.M treatments, and that osteoclast formation was almost completely inhibited at concentrations of 5. Mu.M and above.
Experimental example 5 qPCR Effect of trisubstituted pyrazole Compound Y-3 on the expression of osteoclast differentiation-related Gene
P2-generation BMM cells isolated from mouse bone marrow cells were plated in 6-well plates according to the number of 4X 10 5 cells per well, the cells were divided into 6 groups (including NM group and 0, 1.25, 2.5, 5 or 10. Mu.M Y-3 treated groups, 3 multiplex wells per group), cultured in complete medium containing 15 ng/mL M-CSF for 1 day, replaced with fresh complete medium (NM group) or osteoclast differentiation induction medium containing the above-mentioned different concentrations of Y-3 after cell attachment, changed for every other day until the control group (i.e., 0. Mu.M Y-3 group) was terminated when a large number of osteoclasts (about 5-6 days) were present, DPBS was washed 2 times, total RNA was extracted using Trizol kit, after measuring the concentration, was obtained by reverse transcription into cDNA in 500. Mu.L in a reaction system, followed by real-time fluorescent quantitative PCR on a Bio-CFX 96 instrument, 2. Mu.L cDNA template, 0.5. Mu.L upstream primer BR, 10. Mu.37. Mu.L primer, and 35H gene expression was calculated for each target gene of 24. Mu.24. Mu.L. As a result, as shown in FIG. 4, the mRNA expression levels of the osteoclast differentiation-related genes Nfatc, ctsk, acp5, oscar, dcstamp, mmp9 and Atp v0d2 decreased in a concentration-dependent manner with an increase in the concentration of Y-3, further indicating that Y-3 inhibits osteoclast differentiation.
Experimental example 6 Western blot detection of the Effect of trisubstituted pyrazole Compound Y-3 on the expression of osteoclast differentiation-associated protein and antioxidant protein
Bone marrow macrophages were plated into 6-well plates at 4X 10 5 cells per well, divided into a control group and a drug-treated group, each group was repeated 3 times, and after culturing with complete medium containing 15 ng/mL M-CSF for 1 day, the medium was changed to osteoclast differentiation-inducing medium, and 5. Mu.M Y-3 was added to the drug-treated group, and the control group was added with an equal amount of dimethyl sulfoxide solvent, and protein samples were collected at 0,1, 3, and 5 days, respectively, every other day. The specific sample collection steps are that the culture medium in a 6-hole plate is discarded, DPBS is cleaned for 2 times, 100 mu L of RIPA lysate containing protease inhibitor and phosphatase inhibitor is added into each hole, cells in the hole plate are scraped off, the cells are collected into a centrifuge tube, after 10min of the cells are cracked on ice, 13000 and rpm are centrifuged for 15 and min, and the supernatant is obtained as a protein sample. After the concentration of the protein samples was determined by BCA kit, an equal amount of protein samples was taken for electrophoresis on 10% SDS-PAGE gel, transferred to NC membrane after protein bands were separated, NC membrane was blocked with blocking solution (TBST containing 5% skimmed milk) at room temperature for 1 hour, then antibodies against Ctsk, src, C-Fos, nfatc1, catalase or HO-1 were added, respectively, and incubated overnight at 4℃and the next day, after washing 3 times on a shaker with 1 XTBE, the corresponding secondary antibodies were added for incubation 1h at room temperature and washing 3 times with 1 XTBE, and developed. As shown in FIG. 5, the induction of RANKL on osteoclast differentiation related proteins Ctsk and c-Fos, src, nfatc1 and the inhibition of oxidation resisting proteins Catalase and HO-1 by 5 mu M Y-3 can be remarkably reversed, which shows that Y-3 inhibits osteoclast differentiation by up-regulating oxidation resisting proteins and down-regulating key factors of osteoclast differentiation.

Claims (8)

1. Use of a trisubstituted pyrazole compound having a structural formula as shown in formula (1) in the preparation of an osteoclast differentiation inhibitor:
;
R 1 is phenyl or substituted phenyl, the substituent is selected from halogen, R 2 is phenyl or substituted phenyl, and the substituent is selected from halogen, methyl, ethyl and phenyl.
2. The use according to claim 1, wherein the trisubstituted pyrazole compound is used for the preparation of a medicament for the treatment of osteolytic diseases.
3. The use according to claim 1, wherein the trisubstituted pyrazole compound is used for the preparation of a medicament for the prophylaxis or treatment of osteoporosis, tumor metastasis bone destruction or rheumatoid arthritis.
4. The use according to claim 1, wherein the trisubstituted pyrazole compound is used for the preparation of a medicament for inhibiting the expression of an osteoclast differentiation-critical protein.
5. The use of claim 1, wherein the trisubstituted pyrazole compound is used in the manufacture of a medicament for enhancing antioxidant protein expression for targeted inhibition of ROS.
6. The use according to any one of claims 1 to 5, wherein the trisubstituted pyrazole compound is of any one of the following formulae:
7. The method according to claim 1to 5, wherein the inhibitor or the drug is administered orally, by injection or topically in the form of a tablet, pill, powder, capsule, injection, oral liquid, paste or cream.
8. The method according to claim 1 to 5, wherein the inhibitor or the drug comprises a trisubstituted pyrazole compound as an active ingredient and pharmaceutically acceptable excipients.
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