CN112608375A - Novel BH3 mimic peptide analogue for inhibiting PTP1B activity and application thereof - Google Patents

Novel BH3 mimic peptide analogue for inhibiting PTP1B activity and application thereof Download PDF

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CN112608375A
CN112608375A CN202011518318.0A CN202011518318A CN112608375A CN 112608375 A CN112608375 A CN 112608375A CN 202011518318 A CN202011518318 A CN 202011518318A CN 112608375 A CN112608375 A CN 112608375A
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张传亮
苏贤斌
黄鼎旻
王振炜
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Qingdao University of Science and Technology
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Abstract

The invention discloses a novel BH3 mimic peptide analogue for inhibiting PTP1B activity and application thereof. The structural formula of the novel BH3 mimetic peptide analogs is shown below:
Figure DDA0002848182690000011
the mimic peptide compound is derived from a core region of a Bim-BH3 structural domain, and is prepared by a polypeptide solid phase synthesis method, and amino acids in the structure are all natural amino acids. The novel BH3 mimic peptide analogue has remarkable activity of inhibiting PTP1B, and has potential application value in drug development of related diseases taking PTP1B as a target, such as diabetes, cancer, Alzheimer's disease and the like.

Description

Novel BH3 mimic peptide analogue for inhibiting PTP1B activity and application thereof
Technical Field
The invention belongs to the field of biological medicines, and particularly relates to a novel BH3 mimic peptide analogue for inhibiting PTP1B activity and application thereof.
Background
Protein tyrosine phosphatase 1B (PTP1B) is closely related to the onset and development of type 2 diabetes and obesity, and is a key negative regulatory protein in the insulin signal transduction pathway. Abnormal overexpression of PTP1B results in decreased insulin sensitivity and development of insulin resistance. The PTP1B inhibitor can block tyrosine phosphorylation of Insulin Receptor (IR) stimulated by insulin, further influence phosphorylation of insulin receptor substrate (IRS-1), enhance insulin-like and insulin sensitivity, effectively improve insulin resistance from the source, reduce blood sugar, and simultaneously has no hypoglycemia adverse reaction of insulin-like drugs. Thus, PTP1B is also a hot target for recent studies of T2DM, and several candidate compounds have entered preclinical and phase I, II trials. Recent research views in recent years have shown that: PTP1B can be a (potential) target for the development of anti-tumor and alzheimer drugs. Some researches find that the overexpression of PTP1B can obviously promote the generation and growth of tumors in mice, and the inhibition of the expression of PTP1B by an inhibitor can produce an anti-tumor effect; the mechanism research finds that PTP1B controls the non-mitochondrial oxygen consumption of cells by regulating RNF213 gene, thereby promoting the survival and growth of tumor cells under the anoxic condition. Thus, PTP1B is considered a target for anti-tumor drugs. In recent years, PTP1B has also been used as a regulation effect in physiological processes related to Alzheimer's disease in the central nervous system, and a strategy for inhibiting PTP1B and further antagonizing harmful physiological processes related to Alzheimer's disease regulated by PTP1B is proposed to research and develop anti-Alzheimer's disease drugs. Therefore, PTP1B has become a potential hot target for developing anti-diabetic, cancer and Alzheimer's disease drugs, and the PTP1B inhibitor is expected to be applied to developing anti-diabetic, cancer and Alzheimer's disease drugs taking PTP1B as a target.
At present, inhibitors of PTP1B mainly include small inorganic molecule compounds, organic compounds and PTP1B inhibitors in natural products. But the selectivity of the inorganic micromolecule compound is very low, and the compound has stronger inhibition on all PTPs; most of organic compounds are screened by organic synthesis and combinatorial chemistry methods, a compound with PTP1B activity inhibition is screened firstly, then a substituent group of the compound is modified, and finally a better PTP1B inhibitor is obtained, and the problems of poor stability, higher charge, overhigh lipophilic coefficient and the like which restrict the drug property exist in the inhibitor; PTP1B inhibitor in natural products is obtained by high-throughput screening of natural products isolated and identified in nature, and although it has high selectivity and activity, the site of action is not well-defined. Therefore, it is necessary to make up for the defects of the existing PTP1B inhibitory molecules and develop a novel PTP1B inhibitor which has novel structure, strong selectivity, low toxicity and high efficiency so as to meet the urgent needs of domestic clinical application.
Disclosure of Invention
The invention provides a novel BH3 mimic peptide analogue for inhibiting PTP1B activity and application thereof. The novel BH3 mimic peptide analogue has remarkable PTP1B inhibition activity, and can be used for preparing drugs for preventing or treating related diseases with PTP1B as a target.
In order to realize the purpose of the invention, the invention adopts the following technical scheme to realize:
the invention provides a novel BH3 mimic peptide analogue for inhibiting PTP1B activity, wherein the structural formula of the novel BH3 mimic peptide analogue is as follows:
Figure BDA0002848182670000021
wherein R1 is a long-chain carboxylic acid, R2 is COOH, and R3 is a carboxylic acid or polycarboxylic acid with different chain lengths.
Further, R1 is palmitic acid.
Further, the peptide chain of the BH3 mimetic peptide analogues scan-1-scan-11 adopts an Ala-scanning strategy, and the N-terminal protecting group is modified by palmitic acid. Other such compounds have been modified at the N-terminus of the peptide chain with carboxylic or polycarboxylic acids of varying chain length.
Further, the novel BH3 mimetic peptide analogs are specifically:
Figure BDA0002848182670000031
further, the preparation method of the novel BH3 mimic peptide analogue comprises the following steps:
(1) placing Fmoc-Phe-Wang (scan-11 is Fmoc-Ala-Wang) resin in a manual polypeptide solid phase synthesizer at room temperature, and activating by dichloromethane and dimethylformamide;
(2) adding piperidine/dimethylformamide mixed solution to remove the Fmoc protecting group;
(3) adding 3-4 times of resin molar weight of N-Fmoc protected amino acid or carboxylic acid, HOBT, HBTU and 5-6 times of resin molar weight of DIEA, and carrying out oscillation reaction at room temperature for 2-4 h;
(4) repeating steps (2) and (3) until the synthesis of the whole mimic peptide sequence is completed;
(5) adding the lysate into the product obtained in the step (4), stirring at room temperature, filtering, adding anhydrous ether to precipitate a solid, washing, and drying in vacuum to obtain a crude mimic peptide analogue product;
(6) and purifying the crude product of the peptide analogue by using reverse phase preparative liquid chromatography, collecting a target peak mobile phase solution, removing acetonitrile, and freeze-drying to obtain a flocculent or powdery solid, namely a pure BH3 mimic peptide analogue product.
Further, the lysis solution comprises phenol, water, thioanisole and trifluoroacetic acid.
Further, blowing N after filtering in the step (5)2Excess trifluoroacetic acid was removed.
The invention also provides a medicament or a pharmaceutical composition which takes the novel BH3 mimic peptide analogue as an active ingredient, and comprises any novel BH3 mimic peptide analogue and one or more pharmaceutically acceptable carriers or excipients.
The invention also provides application of the novel BH3 mimic peptide analogue in preparation of an inhibitor for inhibiting PTP1B activity.
The invention also provides application of the novel BH3 mimic peptide analogue in preparation of a medicament for preventing or treating diseases taking PTP1B as a target.
Further, the diseases include diabetes, cancer and alzheimer's disease.
Furthermore, the administration mode of the medicament or the pharmaceutical composition taking the novel BH3 mimic peptide analogue as an active ingredient is oral administration or injection.
Compared with the prior art, the invention has the advantages and the technical effects that:
the invention obtains a novel BimBH3 mimic peptide analogue by a polypeptide solid phase synthesis method, the novel BH3 mimic peptide analogue is derived from a core region of a Bim-BH3 structural domain, and amino acids in the structure are natural amino acids. Experiments prove that the novel BH3 mimic peptide analogue has a remarkable inhibiting effect on protein tyrosine phosphatase 1B (PTP1B), and the obtained mimic peptide analogue has high purity, can be used as an excellent PTP1B inhibitor, and can also be applied to the development of medicaments for related diseases taking PTP1B as a target point, such as diabetes, cancer, Alzheimer's disease and the like. Therefore, the novel BH3 mimic peptide analogue has potential application value and good development prospect.
Drawings
FIGS. 1-18 are dose-inhibitory effect curves for the target protein PTP1B for the mimetics scan-2, scan-3, scan-4, scan-5, scan-6, scan-7, scan-8, scan-11, C13-SM6, C14-SM6, C16 diacid-SM6, C18-SM6, C18 diacid-SM6, C20-SM6, C22-SM6, C20 diacid-SM6, C22 diacid-SM6 and Lila-SM6, respectively.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to specific examples. The methods in the following examples are conventional methods unless otherwise specified.
Example 1
The specific preparation process of the synthetic route taking scan-1 as an example is as follows:
(1) resin activation: weighing corresponding amount of Fmoc-Phe-Wang (scan-11 is Fmoc-Ala-Wang) resin, placing the resin in a manual polypeptide solid phase synthesizer, washing with DCM for 4 times, adding 5ml of DCM for swelling and activating for 3h, washing with DMF for 4 times, adding 20% piperidine DMF for removing Fmoc protecting groups twice (20min +5min), washing with DMF for 4 times for 5ml, washing with DCM for 4 times for 5ml, and detecting with Kaiser's reagent.
(2) Attachment of Phe (F): washing with DMF for 3 times, respectively adding Fmoc-Phe-OH, HBTU, HOBt and DIEA with the molar weight of 3 times of the resin, dissolving in 10ml of DMF, stirring at room temperature for reaction for 2h, washing with DMF for 4 times, adding 20% piperidine DMF to remove Fmoc protecting groups twice (20min +5min), washing with 5ml DMF for 4 times, washing with 5ml DCM for 4 times, and detecting with Kaiser's reagent.
(3) Link Glu (E): washing with DMF for 3 times, respectively adding Fmoc-Glu (OtBu) -OH, HBTU, HOBt and DIEA with the resin molar amount of 3 times that of the resin, dissolving in 10ml of DMF, stirring at room temperature for reaction for 2h, washing with DMF for 4 times, adding 20% piperidine DMF to remove Fmoc protecting groups twice (20min +5min), washing with 5ml DMF for 4 times, washing with 5ml DCM for 4 times, and detecting with Kaiser's reagent.
(4) To Asp (D): the DMF is washed for 3 times, 3 times of resin molar weight of Fmoc-Asp (OtBu) -OH, HBTU, HOBt and 6 times of resin molar weight of DIEA are respectively added and dissolved in 10ml of DMF, the mixture is stirred for reaction at room temperature for 2 hours, the DMF is washed for 4 times, 20% piperidine DMF is added for removing Fmoc protecting groups twice (20min +5min), 5ml of DMF is washed for 4 times, 5ml of DCM is washed for 4 times, and Kaiser's reagent is used for detection.
(5) To Gly (G): washing with DMF for 3 times, respectively adding Fmoc-Gly-OH, HBTU, HOBt and DIEA with the molar weight of 3 times and 6 times of the resin molar weight, dissolving in 10ml of DMF, stirring at room temperature for reaction for 2h, washing with DMF for 4 times, adding 20% piperidine DMF to remove Fmoc protecting groups twice (20min +5min), washing with 5ml DMF for 4 times, washing with 5ml DCM for 4 times, and detecting with Kaiser's reagent.
(6) The connection Ile (I): washing with DMF for 3 times, respectively adding Fmoc-Ile-OH, HBTU, HOBt and DIEA with the molar weight being 3 times that of the resin, dissolving in 10ml of DMF, stirring at room temperature for reaction for 2h, washing with DMF for 4 times, adding 20% piperidine DMF to remove Fmoc protecting groups twice (20min +5min), washing with 5ml DMF for 4 times, washing with 5ml DCM for 4 times, and detecting with Kaiser's reagent.
(7) To Arg (R): washing with DMF for 3 times, adding Fmoc-Arg (mtr) -OH, HBTU, HOBt and DIEA with resin molar amount of 3 times and 6 times respectively, dissolving in 10ml of DMF, stirring at room temperature for reaction for 2h, washing with DMF for 4 times, adding 20% piperidine DMF to remove Fmoc protecting groups twice (20min +5min), washing with DMF for 4 times with 5ml, washing with DCM for 4 times, and detecting with Kaiser's reagent. This step was repeated 1 time.
(8) To Arg (R): washing with DMF for 3 times, adding Fmoc-Arg (mtr) -OH, HBTU, HOBt and DIEA with resin molar amount of 3 times and 6 times respectively, dissolving in 10ml of DMF, stirring at room temperature for reaction for 2h, washing with DMF for 4 times, adding 20% piperidine DMF to remove Fmoc protecting groups twice (20min +5min), washing with DMF for 4 times with 5ml, washing with DCM for 4 times, and detecting with Kaiser's reagent. This step was repeated 1 time.
(9) To Leu (L): washing with DMF for 3 times, respectively adding Fmoc-Leu-OH, HBTU, HOBt and DIEA with the molar weight being 3 times that of the resin, dissolving in 10ml of DMF, stirring at room temperature for reaction for 2h, washing with DMF for 4 times, adding 20% piperidine DMF to remove Fmoc protecting groups twice (20min +5min), washing with DMF for 4 times (5 ml), washing with DCM for 4 times (5 ml), and detecting with Kaiser's reagent.
(10) Link Glu (E): washing with DMF for 3 times, respectively adding Fmoc-Glu (OtBu) -OH, HBTU, HOBt and DIEA with the resin molar amount of 3 times that of the resin, dissolving in 10ml of DMF, stirring at room temperature for reaction for 2h, washing with DMF for 4 times, adding 20% piperidine DMF to remove Fmoc protecting groups twice (20min +5min), washing with 5ml DMF for 4 times, washing with 5ml DCM for 4 times, and detecting with Kaiser's reagent.
(11) To Glu (Q): washing with DMF for 3 times, respectively adding Fmoc-Glu (OtBu) -OH, HBTU, HOBt and DIEA with the resin molar amount of 3 times that of the resin, dissolving in 10ml of DMF, stirring at room temperature for reaction for 2h, washing with DMF for 4 times, adding 20% piperidine DMF to remove Fmoc protecting groups twice (20min +5min), washing with 5ml DMF for 4 times, washing with 5ml DCM for 4 times, and detecting with Kaiser's reagent.
(12) Connection to Ala (A): washing with DMF for 3 times, respectively adding Fmoc-Ala-OH, HBTU, HOBt and DIEA with resin molar weight of 3 times and 6 times, dissolving in 10ml of DMF, stirring at room temperature for reaction for 2h, washing with DMF for 4 times, adding 20% piperidine DMF to remove Fmoc protecting groups twice (20min +5min), washing with DMF for 4 times with 5ml, washing with DCM for 4 times with 5ml, and detecting with Kaiser's reagent.
(13) Connection to Ala (A): washing with DMF for 3 times, respectively adding Fmoc-Ala-OH, HBTU, HOBt and DIEA with resin molar weight of 3 times and 6 times, dissolving in 10ml of DMF, stirring at room temperature for reaction for 2h, washing with DMF for 4 times, adding 20% piperidine DMF to remove Fmoc protecting groups twice (20min +5min), washing with DMF for 4 times with 5ml, washing with DCM for 4 times with 5ml, and detecting with Kaiser's reagent.
(14) Ligation palmitic acid (Pal): washing with DMF for 3 times, respectively adding palmitic acid, HBTU, HOBt and DIEA with the molar weight being 6 times that of the resin and 10 times that of the resin, dissolving in 10ml of DMF, stirring at room temperature for reaction for 4h, washing with 5ml of DMF for 4 times, washing with 5ml of DCM for 4 times, and detecting with Kaiser's reagent.
(15) Cleavage, side chain protecting group cleavage: adding 250mg phenol, 0.5ml water, 0.5ml thioanisole and 9.0ml trifluoroacetic acid into the product, stirring for 2.5h at room temperature, filtering, and adding N2Blowing off trifluoroacetic acid, adding 30ml cold anhydrous ether, centrifuging at 5000rpm for 5min to obtain white precipitate, washing with cold anhydrous ether for 3 times, and vacuum drying to obtain crude product.
(16) Purifying the crude product by using reversed phase preparative liquid chromatography (RP-HPLC), collecting a target peak mobile phase solution, removing acetonitrile, freezing and drying to obtain a flocculent or powdery solid, namely a pure BH3 mimic peptide analogue product, and carrying out structure confirmation by mass spectrometry and high performance liquid chromatography analysis.
Mass spectral data and HPLC purity analysis data for the 27 BH3 mimetic peptide analogs obtained in the manner described above are shown in table 1.
TABLE 1 Mass Spectrometry data and HPLC purity analysis data for BH3 mimetic peptide analogs
Figure BDA0002848182670000071
Figure BDA0002848182670000081
Example 2: determination of protein tyrosine phospholipase 1B (PTP1B) inhibitory Activity
According to the invention, MES buffer solution is adopted as a reaction system, human protein tyrosine phosphatase 1B (PTP1B) is utilized, sodium p-nitrophenylphosphate (pNPP) is taken as a specific substrate, a lead compound SM-6 is selected as a positive control, DMSO is taken as a negative control, a screening model taking a 96-well microplate based on an enzyme reaction rate as a carrier is established, and a PTP1B inhibitor is searched by an enzymology method.
The specific implementation method comprises the following steps: mu.L of pNPP (77mM), 86. mu.L of MES buffer, 4. mu.L of compound (2mM), and 100. mu.L of PTP1B solution (50nM) were sequentially added to a 96-well plate using MES buffer system (25mM, pH6.5), and the total reaction volume was 200. mu.L. Each group of 3 replicates were shaken at 25 ℃ for 1min on a shaker with DMSO as a negative control and sodium orthovanadate (2mM) as a positive control, read every 60s on a microplate reader, and dynamically measured for 5min to determine the change in OD 405 (OD/min). The initial phase reaction rates for each well are linearly related and the slope of the linear portion of the kinetic curve determines the reaction rate of PTP1B, which is indicative of enzyme activity. For the obtained data
Figure BDA0002848182670000082
The data for each set was analyzed using the t-test. The inhibition rate of the compound on PTP1B is calculated according to the formula:
inhibition ratio (%) - (v)DMSO-vSample(s))/vDMSO×100%
Wherein v isDMSO、vSample(s)The initial average reaction rates of the negative control group and the test compound are expressed respectively
The invention performs primary screening on the PTP1B inhibition rate of the mimic peptide under the concentration of 10 mu mol/L, and performs IC (integrated Circuit) on the compound with the primary screening inhibition rate higher than 70 percent50The results of the assay and inhibition are shown in Table 2.
TABLE 2 results of inhibition of PTP1B activity by the tested peptidomimetic analogs
Figure BDA0002848182670000083
Figure BDA0002848182670000091
*: compounds with a preliminary screening inhibition of less than 50% were not IC treated50The measurement of (1).
Statistical processing was performed using GraphPad Prism software to plot the effect curves of the inhibitor amounts, see FIGS. 1-18, and calculated to obtain the IC of the PTP1B inhibitory medium concentrations of the mimetic peptide analogues scan-2, scan-3, scan-4, scan-5, scan-6, scan-7, scan-8, scan-11, C13-SM6, C14-SM6, C16 diacids-SM 6, C18-SM6, C18 diacids-SM 6, C20-SM6, C20 diacids-SM 6, C22-SM6, C22 diacids-SM 6 and Lila-SM650Respectively 91.6nmol/L, 703.0nmol/L, 580.9nmol/L, 1208.0nmol/L, 56.5nmol/L, 45.4nmol/L, 63.7nmol/L, 511.9nmol/L, 835.4nmol/L, 262.7nmol/L, 2875nmol/L, 120.2nmol/L, 384.6nmol/L, 3887nmol/L, 443.5nmol/L, 337.9nmol/L, 199.6nmol/L, 4345 nmol/L.
The test result shows that: the mimic peptide analogue of the invention has obvious inhibition effect on protein tyrosine phosphatase 1B, can be used as an excellent PTP1B inhibitor, and is applied to the development of antidiabetic, antitumor and anti-Alzheimer's disease drugs taking PTP1B as a target, thereby having good development prospect.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (10)

1. A novel BH3 mimetic peptide analog which inhibits PTP1B activity, wherein the novel BH3 mimetic peptide analog has the structural formula:
Figure FDA0002848182660000011
wherein R1 is long-chain carboxylic acid, R2 is COOH, and R3 is carboxylic acid or polycarboxylic acid with different carbon chain lengths.
2. The novel BH3 mimetic peptide analog of claim 1, wherein the novel BH3 mimetic peptide analog is specifically:
Figure FDA0002848182660000012
Figure FDA0002848182660000021
3. the novel BH3 mimetic peptide analog of claim 1, wherein the novel BH3 mimetic peptide analog is prepared by a method comprising the steps of:
(1) placing Fmoc-Phe-Wang resin in a manual polypeptide solid phase synthesizer at room temperature, and activating by using dichloromethane and dimethylformamide;
(2) adding piperidine/dimethylformamide mixed solution to remove the Fmoc protecting group;
(3) adding 3-4 times of resin molar weight of N-Fmoc protected amino acid or carboxylic acid, HOBT, HBTU and 5-6 times of resin molar weight of DIEA, and carrying out oscillation reaction at room temperature for 2-4 h;
(4) repeating steps (2) and (3) until the synthesis of the whole mimic peptide sequence is completed;
(5) adding the lysate into the product obtained in the step (4), stirring at room temperature, filtering, adding anhydrous ether to precipitate a solid, washing, and drying in vacuum to obtain a crude mimic peptide analogue product;
(6) and purifying the crude product of the peptide analogue by using reverse phase preparative liquid chromatography, collecting a target peak mobile phase solution, removing acetonitrile, and freeze-drying to obtain a flocculent or powdery solid, namely a pure BH3 mimic peptide analogue product.
4. The novel BH3 mimetic peptide analogues according to claim 3, wherein said cleavage solution comprises phenol, water, thioanisole, and trifluoroacetic acid.
5. The novel BH3 mimetic peptide analogues according to claim 3, wherein N is blown after filtration in step (5)2Excess trifluoroacetic acid was removed.
6. A medicament or pharmaceutical composition comprising as an active ingredient a novel BH3 mimetic peptide analog of any one of claims 1-5, wherein said medicament or pharmaceutical composition comprises any of said novel BH3 mimetic peptide analogs and one or more pharmaceutically acceptable carriers or excipients.
7. Use of a novel BH3 mimetic peptide analog of any one of claims 1-5 in the preparation of an inhibitor for inhibiting PTP1B activity.
8. Use of a novel BH3 mimetic peptide analog of any one of claims 1-5 in the manufacture of a medicament for the prevention or treatment of PTP 1B-targeted diseases.
9. Use according to claim 8, characterized in that: the diseases include diabetes, cancer and alzheimer's disease.
10. Use according to claim 8, characterized in that: the administration mode of the medicine or the medicine composition taking the novel BH3 mimic peptide analogue as the active ingredient is oral administration or injection.
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CN202210965782.7A CN115403661A (en) 2020-12-21 2020-12-21 PTP1B polypeptide inhibitor BimBH3-12-G9A and application thereof
CN202210965781.2A CN115417922A (en) 2020-12-21 2020-12-21 PTP1B polypeptide inhibitor BimBH3-12-F12A and application thereof
CN202011518318.0A CN112608375B (en) 2020-12-21 2020-12-21 Novel BH3 mimetic peptide analogue for inhibiting PTP1B activity and application thereof
CN202210965783.1A CN115403662A (en) 2020-12-21 2020-12-21 PTP1B polypeptide inhibitor BimBH3-12-Q3A and application thereof
CN202210965785.0A CN115403663A (en) 2020-12-21 2020-12-21 PTP1B polypeptide inhibitor BimBH3-12-I8A and application thereof
PCT/CN2021/087669 WO2022134395A1 (en) 2020-12-21 2021-04-16 Novel bh3 mimetic peptide analog inhibiting ptp1b activity and application thereof
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CN202210965781.2A Division CN115417922A (en) 2020-12-21 2020-12-21 PTP1B polypeptide inhibitor BimBH3-12-F12A and application thereof
CN202210965785.0A Division CN115403663A (en) 2020-12-21 2020-12-21 PTP1B polypeptide inhibitor BimBH3-12-I8A and application thereof
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022134395A1 (en) * 2020-12-21 2022-06-30 青岛科技大学 Novel bh3 mimetic peptide analog inhibiting ptp1b activity and application thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116239652B (en) * 2022-12-07 2023-10-10 中国农业大学 Three oligopeptides derived from red bean and application thereof in controlling obesity and diabetes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109575108A (en) * 2018-12-12 2019-04-05 中国海洋大学 Using PTP1B as novel B H3 peptide mimics of target spot and its preparation method and application
CN109912688A (en) * 2017-12-12 2019-06-21 青岛海洋生物医药研究院股份有限公司 A kind of PTP1B peptide inhibitor and its preparation method and application
CN110183515A (en) * 2019-04-28 2019-08-30 浙江中医药大学 It is a kind of for PTP1B detection polypeptide and include the fluorescence probe of the polypeptide

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1781689A4 (en) * 2004-06-24 2010-11-10 Inst Medical W & E Hall Conjugates and therapeutic uses thereof
CN106565835A (en) * 2016-11-10 2017-04-19 青岛海洋生物医药研究院股份有限公司 Novel BH3 analogue targeted to Bcl-2 family anti-apoptotic protein and application of novel BH3 analogue
CN112608375B (en) * 2020-12-21 2022-10-04 青岛科技大学 Novel BH3 mimetic peptide analogue for inhibiting PTP1B activity and application thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109912688A (en) * 2017-12-12 2019-06-21 青岛海洋生物医药研究院股份有限公司 A kind of PTP1B peptide inhibitor and its preparation method and application
CN109575108A (en) * 2018-12-12 2019-04-05 中国海洋大学 Using PTP1B as novel B H3 peptide mimics of target spot and its preparation method and application
CN110183515A (en) * 2019-04-28 2019-08-30 浙江中医药大学 It is a kind of for PTP1B detection polypeptide and include the fluorescence probe of the polypeptide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022134395A1 (en) * 2020-12-21 2022-06-30 青岛科技大学 Novel bh3 mimetic peptide analog inhibiting ptp1b activity and application thereof

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