WO2012126231A1 - 聚(4-苯乙烯磺酸-共聚-马来酸)钠盐的用途及其药物组合物 - Google Patents
聚(4-苯乙烯磺酸-共聚-马来酸)钠盐的用途及其药物组合物 Download PDFInfo
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- WO2012126231A1 WO2012126231A1 PCT/CN2011/078371 CN2011078371W WO2012126231A1 WO 2012126231 A1 WO2012126231 A1 WO 2012126231A1 CN 2011078371 W CN2011078371 W CN 2011078371W WO 2012126231 A1 WO2012126231 A1 WO 2012126231A1
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- WIPO (PCT)
- Prior art keywords
- poly
- sodium salt
- maleic acid
- hiv
- acid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/74—Synthetic polymeric materials
- A61K31/795—Polymers containing sulfur
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
- A61P31/18—Antivirals for RNA viruses for HIV
Definitions
- the present invention relates to the use of poly(4-styrenesulfonic acid-co-maleic acid) sodium salt, and to a pharmaceutical composition containing poly(4-styrenesulfonic acid-co-maleic acid) sodium salt as an active ingredient .
- HIV-1 human immunodeficiency virus
- Invasion of target cells by HIV-1 is a specific biological process that requires the envelope protein gpl20 on the surface of the virus to bind to the cellular receptor CD4, induce a change in the conformation of g pl20, and then bind to the cell surface co-receptor CCR5 or CXCR4.
- the conformational change of the fusion protein gp41 which was originally blocked by gpl20, exposes its hydrophobic N-terminal fusion peptide sequence and is inserted into the host cell membrane, thereby initiating fusion of the viral membrane with the cell membrane, eventually leading to the entry of the viral core structure into the cell, establishing an infection. .
- a number of inhibitors have been developed for this biological process, such as the adjuvant receptor inhibitors Maraviroc and PSC-RANTES, and the fusion process inhibitor T20 (which has been approved for marketing by the US FDA). Fuviridine) and C52L polypeptides are also promising candidates for microbicides.
- Poly (4-styrenesulfonic acid-co-maleic acid) sodium salt is a synthetic polymer compound, soluble in water, and the aqueous solution is colorless to Light yellow, good heat resistance. Since the compound carries a styrene sulfonic acid group and a maleic anhydride group, it has a high anion distribution density and is highly dispersible, and is a surface active material.
- Poly(4-styrenesulfonic acid-co-maleic acid) sodium salt has a wide range of applications in industry and agriculture, and can be used in detergents and dispersants, but there are few reports on its application in the field of medicine and health, especially It is used as an antiviral drug. Summary of the invention
- a first object of the present invention is to provide a poly(4-styrenesulfonic acid-co-maleic acid) sodium salt for use in the preparation of a medicament for inhibiting HIV-1 infection;
- a second object of the present invention is to provide a pharmaceutical composition for inhibiting HIV-1 comprising poly(4-styrenesulfonic acid-co-maleic acid) sodium salt as an active ingredient, which further comprises a conventional pharmaceutical carrier .
- poly(4-styrenesulfonic acid-co-maleic acid) sodium salt has a high negative charge and can be associated with HIV-1 cell membrane protein g pl20 V3
- the fragment (positive charge) interacts to block the interaction of the V3 fragment with the receptor CD4 to block the entry of HIV-1 virus into the cell or to inhibit the fusion of CH0-WT with MT-2 cells.
- poly(4-styrenesulfonate-co-maleic acid) sodium salt has strong anti-CD4-dependent HIV-1 infection and also performs well for some clinical isolates.
- the activity which includes the B', B'C and CRF01-AE recombinant subtypes, indicates that the poly(4-styrenesulfonate-co-maleic acid) sodium salt has a broad spectrum of resistance to HIV-1.
- poly(4-styrenesulfonate-co-maleic acid) sodium salt also has good anti-infective ability against CD4-independent HIV-1 infection.
- In vitro toxicity tests on poly(4-styrenesulfonic acid-co-maleic acid) sodium salt revealed that the compound has very low toxicity.
- poly(4-styrenesulfonate-co-maleic acid) sodium salt has a role in inhibiting the fusion process mediated by the HIV-1 viral envelope protein gpl20.
- Poly(4-styrenesulfonic acid-co-maleic acid) sodium salt is abundant in source and low in production cost, and has potential application value as a novel anti-HIV-1 drug and microbicide.
- Figure 1 shows poly(4-styrenesulfonic acid-co-maleic acid) sodium salt inhibits HIV-1 B subtype standard strain JR-FUR5 tropism) and HXB2U4 tropism) to CD4+ CCR5+ CXCR4+ ghost (3 a graph of X4-Hi5 cell infection;
- Figure 2 is a graph showing the inhibition of infection of CD4 + CCR5 + CXCR4 + ghost (3) X4_Hi5 cells by a poly(4-styrenesulfonic acid-co-maleic acid) sodium salt;
- Figure 3 is a poly(4-styrenesulfonic acid-co-maleic acid) sodium salt inhibiting the HIV-1 B subtype standard strain JR-FL (R5 tropism) and HXB2 (X4 tropism) on CD4- a graph of Caco_2 cell infection;
- Figure 4 is a poly(4-styrenesulfonic acid-co-maleic acid) sodium salt inhibiting the HIV-1 B subtype standard strain JR-FL (R5 tropism) and HXB2 (X4 tropism) on CD4- a graph of HEC-A cell infection;
- Figure 5 is a graph showing the toxicity of poly(4-styrenesulfonic acid-co-maleic acid) sodium salt on CD4-Caco-2 cells;
- Figure 6 is a graph showing the toxicity of poly(4-styrenesulfonic acid-co-maleic acid) sodium salt on CD4- HEC-1-A cells;
- Figure 7 is poly(4-styrenesulfonic acid-co-maleic acid) sodium salt (PSM), dextran sulfate (Dextran sul f at e ), zidovudine (AZT), nevirapine (nev irapine) Inhibition of time-inhibition profiles of HIV-1 infected CD4+ CCR5+ CXCR4+ ghost (3) ⁇ 4- ⁇ 5 cells;
- Figure 8 is a bar graph showing the inhibition of HIV-1 viral envelope protein gpl20 mediated cell fusion by poly(4-styrenesulfonate-co-maleic acid) sodium salt at various concentrations.
- PEK linear, 25kD purchased from Polyscience, formulated into a 5 mg/ml solution
- HIV-1 B subtype standard strain JR-FL, HXB2;
- HIV-1 clinical isolates CNE6 ( ⁇ ' subtype), CNE30 ( ⁇ ' C subtype), CNE50 (B, C subtype) and Wokou CNE55 (CRF01-AE subtype), all isolated from HIV infection in China Including the major HIV-1 epidemic subtypes in China;
- the HIV-1 pseudoviral backbone plasmid pNL4-3 and different pseudovirus envelope plasmids were co-transfected into 293T cells using PEI transfection reagent. After 48 hours of culture, the supernatant was collected and stored in -75 °C. That is, a pseudovirus solution was obtained for subsequent experiments. Luciferase assay for the infectivity of pseudoviruses (TCID 5 .)
- the infectious titer of the pseudovirus To determine the infectious titer of the pseudovirus, firstly dilute the virus harvesting solution, add 100 ul to the 96-well plate, 4 replicate wells per gradient, and add lOOul ghost (3) X4-Hi5 cell suspension, cell density 10 5 After 48 hours of cell/mlo culture, the relative fluorescence value (RLU) of each ⁇ L was determined on a GloMax-96 Microplate Luminometer using a Promega GloMax Lysis Buffer and Luciferase assay system kit. The RLU was greater than 2.5 times the background value and was judged to be positive. The infectious titer of the pseudovirus (TCID 5 ) was calculated using the Reed_Muench method. PSM antiviral activity test
- the PSM was dissolved in double distilled water and sterilized by filtration. Dilute with DMEM complete medium At a certain concentration, perform a 3-fold gradient dilution in a 96-well plate at a maximum concentration of 60 ⁇ g/ml (3 ⁇ M and then add 50 ⁇ 1 4000 TC ID 5 ⁇ /ml of virus dilution to each well to be tested. , mix, incubate for 30 min at 37 ° C.
- the fluorescence intensity was measured on a GloMax-96 Microplate Luminometer using Promega GloMax Lysis Buffer and Luciferase as say system kit (the magnitude of the fluorescence intensity represents the extent of viral infection). In this experiment, complete medium wells were added as control at each time point.
- CH0-WT 2.6 cell-cell fusion inhibition assay
- CH0-WT was cultured in GMEM-S medium containing 400 ⁇ M methionine sulf oximine. When the coverage reached 70%, sodium butyrate was added to a final concentration of 6 mM to stimulate g pl60 trimer (envelope protein). Expression of gpl20 + fusion protein g p41). After stimulation for 16 h, the cells were digested with 0.5 mM (EDTA + EGTA), counted, and inoculated with 5 ⁇ 10 5 CH0-WT per well in a 24-well plate. At the same time, the same number of MT-2 were inoculated into each well of a 24-well plate.
- the poly(4-styrenesulfonic acid-co-maleic acid) sodium salt was detected by a pseudovirus system carrying the luciferase gene to inhibit the HIV-1 B subtype standard strain JR-FL (R5 Sexuality HXB2 (X4 tropic) Infection of CD4+ CCR5+ CXCR4+ cells (Ghost (3) ⁇ 4- ⁇ 5) was found to have a significant inhibitory effect and inhibit EC 5 . They were 4.988 ⁇ g/ml and 5.260 g/ml, respectively.
- the poly(4-styrenesulfonic acid-co-maleic acid) sodium salt has substantially no inhibitory effect on the HIV-1 strain VSV-G having the envelope protein VSV.
- HIV-1 clinical isolates include CNE6 ( ⁇ ' subtype, R5 tropism), CNE30 ( ⁇ ' C subtype, R5 tropism), CNE50 ( ⁇ ' C subtype, R5 tropism) and CNE55 (CRF01-AE subtype, R5 tropism);
- the compound PSM was found to have a significant inhibitory effect on these clinical strains, inhibiting EC 5 . 1.8757 ⁇ g/ml,
- poly(4-styrenesulfonate-co-maleic acid) sodium salt was determined to inhibit HIV-1 infection of CD4 + CCR5 + CXCR4+ cells using a pseudovirus system carrying the luciferase gene.
- poly(4-styrenesulfonic acid-co-maleic acid) sodium salt inhibits gpl20 and CD4-mediated cell fusion, and in Figure 7, poly(4) was found.
- - Styrenesulfonic acid-co-maleic acid) Sodium salt can effectively inhibit the fusion of CH0-WT and MT-2 cells.
- Inhibition of HIV-1 viral envelope protein-mediated fusion from poly(4-styrenesulfonate-co-maleic acid) sodium salt, further illustrating poly(4-styrenesulfonic acid-co-maleic acid) sodium Salt prevents the HIV-1 virus from entering the cell to inhibit the virus.
- poly(4-styrenesulfonate-co-maleic acid) sodium salt has a high negative charge and can interact with the V3 fragment (positive charge) of the membrane protein g pl20 of HIV-1. The effect is to block the interaction of the V3 fragment with the receptor CD4 to block the entry of HIV-1 virus into the cell or to inhibit the fusion of CH0-WT with MT-2 cells.
- poly(4-styrenesulfonate-co-maleic acid) sodium salt has strong anti-CD4-dependent HIV-1 infection and some clinical isolates It also showed good activity, including B', B'C and CRF01-AE recombinant subtypes.
- poly(4-styrenesulfonic acid-co-maleic acid) sodium salt has a broad spectrum of resistance to HIV-1.
- poly(4-styrenesulfonate-co-maleic acid) sodium salt also has good anti-infective ability against CD4-independent HIV-1 infection.
- In vitro toxicity tests on poly(4-styrenesulfonic acid-co-maleic acid) sodium salt revealed that the compound has very low toxicity.
- cell fusion experiments showed that poly(4-styrenesulfonate-co-maleic acid) sodium salt has a role in inhibiting the fusion process mediated by the HIV-1 viral envelope protein gpl20.
- the poly(4-styrenesulfonic acid-co-maleic acid) sodium salt is rich in source and low in production cost, and has potential application value as a novel anti-HIV-1 drug and microbicide.
- a poly(4-styrenesulfonic acid-co-maleic acid) sodium salt is used as an active ingredient, and a conventional pharmaceutical carrier is added.
- the pharmaceutical composition can be formulated as an injection, a tablet, a capsule, an aerosol, a suppository, a film, a pill, a topical tincture, or a controlled release or sustained release dosage form or a nano preparation.
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110065559.9 | 2011-03-18 | ||
| CN2011100655599A CN102160870B (zh) | 2011-03-18 | 2011-03-18 | 聚(4-苯乙烯磺酸-共聚-马来酸)钠盐的用途及其药物组合物 |
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| Publication Number | Publication Date |
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| WO2012126231A1 true WO2012126231A1 (zh) | 2012-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/CN2011/078371 Ceased WO2012126231A1 (zh) | 2011-03-18 | 2011-08-12 | 聚(4-苯乙烯磺酸-共聚-马来酸)钠盐的用途及其药物组合物 |
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| WO (1) | WO2012126231A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017036431A (ja) * | 2015-08-06 | 2017-02-16 | 日本エクスラン工業株式会社 | 抗ウイルス用素材及び該素材を含有する抗ウイルス性を有する製品 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973997A (zh) * | 2015-07-13 | 2015-10-14 | 南京理工大学 | 一种聚脲包覆甲基硅油微胶囊及其制备方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002045706A2 (en) * | 2000-12-05 | 2002-06-13 | Quest Medicine, Inc. | The use of polymers for inactivating pathogens |
| CN1358097A (zh) * | 1999-05-13 | 2002-07-10 | 吉尔特药品公司 | 作为毒素结合剂和抗菌试剂的阴离子聚合物 |
| WO2007146197A1 (en) * | 2006-06-09 | 2007-12-21 | Xing-Xiang Li | Methods and reagents for virus isolation and detection |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101361753B (zh) * | 2008-09-28 | 2010-12-08 | 厦门大学 | 聚(苯乙烯-交替-马来酸钠)的用途 |
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2011
- 2011-03-18 CN CN2011100655599A patent/CN102160870B/zh not_active Expired - Fee Related
- 2011-08-12 WO PCT/CN2011/078371 patent/WO2012126231A1/zh not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1358097A (zh) * | 1999-05-13 | 2002-07-10 | 吉尔特药品公司 | 作为毒素结合剂和抗菌试剂的阴离子聚合物 |
| WO2002045706A2 (en) * | 2000-12-05 | 2002-06-13 | Quest Medicine, Inc. | The use of polymers for inactivating pathogens |
| WO2007146197A1 (en) * | 2006-06-09 | 2007-12-21 | Xing-Xiang Li | Methods and reagents for virus isolation and detection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017036431A (ja) * | 2015-08-06 | 2017-02-16 | 日本エクスラン工業株式会社 | 抗ウイルス用素材及び該素材を含有する抗ウイルス性を有する製品 |
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| Publication number | Publication date |
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| CN102160870B (zh) | 2013-04-24 |
| CN102160870A (zh) | 2011-08-24 |
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