97 results about "Human immunodeficiency virus 1" patented technology

Non-infectious, retrovirus-like particles contain mutations to reduce gag-dependent RNA-packaging of the gag gene product, eliminate reverse transcriptase activity of the pol gene product, eliminate integrase activity of the pol gene product and eliminate RNase H activity of the pol gene product through genetic manipulation of the gag and pol genes. The corresponding nucleic acid molecules are described. The non-infectious, retrovirus-like particles have utility in diagnosis.

Molecular Complexes, comprising of S-(+)-adenosylmethionine and 3'-azido-2',3'-dideoxy nucleosides are prepared, and shown to have synergistic inhibitory effects on the replication of human-immunodeficiency virus 1 & 2 in vitro and in vivo, particularly on the reverse transcriptase, and having a high therapeutic index.

The present invention presents a method of preventing vertical transmission of an infectious disease comprising: (a) applying a photosensitizing composition to host tissues of birth canal of a mother during the intrapartum period; and (b) applying light to the host tissues after the step (a) at a wavelength absorbed by the photosensitizing composition so as to inhibit or eliminate infectious disease microorganisms that come into contact with the host tissues. The infectious disease may be caused by human immunodeficiency virus type 1, hepatitis B virus, hepatitis C virus, Group B Streptococcus, cytomegalovirus, Listeria monocytogenes, Chiamydia trachomatis, Escherichia coli, herpes simplex virus, Epstein-Barr virus, Toxoplasma gondii, human papilloma virus, and Candida.

The invention belongs to the medicine field and provides a borneol-curcumin liposome, a preparation method of the borneol-curcumin liposome and an application of the borneol-curcumin liposome in preparing medicines for preventing human immunodeficiency virus-1(HIV-1) associated neurocognitive disorder. The borneol-curcumin liposome is prepared by, by mass, 270-330 parts of lecithin, 90-110 parts of cholesterol, 0.9-1.1 parts of curcumin and 0.09-0.11 part of borneol. The preparation method includes that the components and 0-11 parts by mass of oxidation protection agents are dissolved by absolute ethyl alcohol, a mixture is subjected to rotary evaporating on a rotary evaporator until ethanol is volatilized to form uniform films, a defined amount of phosphate buffer solution is added, the incubation is performed for three hours, a hydration reaction is undertaken to form an emulsion, then the ultrasound is performed for 10 minutes, and the emulsion passes through a 0.45 micrometer millipore filter to obtain uniform particles so that the borneol-curcumin liposome is obtained. The borneol-curcumin liposome can be prepared to various dosage forms of HIV-associated neurocognitive disorder (HAND) resistant medicines which are peroral, and the pertinence of the borneol-curcumin liposome for treating HAND is high, and the effect is good.

The invention relates to a gene detection kit against human immunodeficiency virus-1 (HIV-1). The gene detection kit comprises a pair of amplification primers, a capture probe, a detection probe, an NASBA (National Association of State Boards of Accountancy) amplification reagent and an NASBA product detection reagent. The gene detection kit provided by the invention designs the primers against the long terminal repeat sequence of the HIV-1, establishes an NASBA fast detection method and is suitable for early diagnosis of HIV-1 infection.

The invention relates to Jurkat-KI-R5 and a construction method and application thereof. A powerful enhancer/starter combination (CAG) is knocked into a starter area of a CCR5 gene of a CD4+Jurkat T cell by a CRISPR/Cas9 gene editing technique in a homologous recombination way; the name of the gene-modified cell system is Jurkat-KI-R5 cell. The Jurkat-KI-R5 cell has the advantages that a CAG starter of the Jurkat-KI-R5 is precisely recombined into the specified location of a CCR5 starter, and the high expression of the CCT5 is stably caused; oppisite to a maternal line Jurkat cell, the Jurkat-KI-R5 cell is easily infected by HIV-1 (human immunodeficiency virus-1); a cell platform urgently demanded by the HIV disease study is provided by the Jurkat-KI-R5 cell.

Novel compounds that are potent inhibitors of HIV reverse transcriptase (RT) are described in the invention. Thes novel compounds also inhibit replication of a retrovirus, such as human immunodeficiency virus-1 (HIV-1). The novel compounds of the invention include analogs and derivatives of phenethylthiazolylthiourea (PETT), of dihydroalkoxybenzyloxopyrimidine (DABO), and of 1-[(2-hydroxyethoxy)methyl]-6-(phenylthio)thymine (HEPT). The invention additionally provides a composite HIV reverse-transcriptase (RT) nonnucleoside inhibitor (NNI) binding pocket constructed from a composite of multiple NNI-RT complexes The composite RT-NNI binding pocket provides a unique and useful tool for designing and identifying novel, potent inhibitors of reverse transcriptase.

The invention discloses a group of tenofovir disoproxil fumarate compounds with activity for inhibiting HIV(human immunodeficiency virus) /HBV(Hepatitis B Virus) replication, a preparation method and pharmaceutical application of the group of tenofovir disoproxil fumarate compounds. The compounds have a formula I, wherein X=H, Y=H; R1=-CH2(CH2)mCH2OCH2(CH2)nCH3, wherein m ranges from 0 to 4, and n ranges from 10 to 20; and R2=-OCH2OC(O)OCH(CH3)2. The invention also discloses a pharmaceutical composition containing the compounds. Shown by the experiment, the activity of one of the compounds for inhibiting the replication of HIV-1 (Human Immunodeficiency Virus-1) is 4.5 times that of azidothymidine (AZT), about 250 times that of the tenofovir disoproxil fumarate (TDF) which is the best medicine for treating acquired immunodeficiency syndrome at present, and 1.37 times that of the medicine CMX157 (Cefmenoxime) which comes into the clinical stage, and the lipid solubility of the compound is about 2 times that of the CMX157; the compounds also have the activity for inhibiting the replication of HBV (Hepatitis B Virus); and the compounds can be applied to the development of medicines for treating the acquired immune deficiency syndrome/hepatitis B.

The invention belongs to the technical field of medicine and relates to a tertiary amine derivative as shown as the general formula I, and pharmaceutically acceptable salt or a prodrug of the tertiary amine derivative. Results of experimental studies show that the tertiary amine derivative has higher capacity of inhibiting the activity of HIV-1 (human immunodeficiency virus-1) protease and is expected to be developed into an effective drug for resisting Aids.

The invention relates to (Z)-1-(1-substituted benzyl-5-methyl-1H-1,2,3-triazole-4-yl)-3-substituted benzyl-3-hydroxy-2-propylene-1-ketone compound and a preparation method and an application thereof. The compound is expressed by formula (I), wherein R1 represents -F, R2 represents -H, or R1 represents -H, R2 represents -F; R3, R4 and R5 represent -OH or -H. The preparation method of the compound comprises synthesizing fluoro-benzyl azide with mono-fluoro benzyl bromide as raw material, reacting with acetylacetone to obtain 1-(1-fluoro-benzyl)-4-acetyl-5-methyl)-1H-1,2,3-triazole, carrying out condensation reaction with substituted methyl benzoate to obtain a compound having a dicarboxylic acid structure, and finally demethylating with boron tribromide to obtain the compound. The compound provided by the invention has an inhibitory action to HIV-1 (human immunodeficiency virus-1) integrase.

The invention relates to a method for detection of HIV-1 (human immunodeficiency virus-1) nucleoside inhibitor drug resistance mutation and a kit thereof. Specifically, the invention discloses a specific probe for detection of human immunodeficiency virus nucleoside reverse transcriptase inhibitor drug resistance mutation, and the probe includes at least one of: a probe for detection of reverse transcriptase gene M41L mutation, a probe for detection of reverse transcriptase gene A62V mutation, a probe for detection of reverse transcriptase gene K65R mutation, a probe for detection of reverse transcriptase gene D67N mutation, a probe for detection of reverse transcriptase gene 69INS insertion mutation, a probe for detection of reverse transcriptase gene K70R mutation, a probe for detection of reverse transcriptase gene L74V mutation, a probe for detection of reverse transcriptase gene V75I mutation, a probe for detection of reverse transcriptase gene F77L mutation, a probe for detection of reverse transcriptase gene Y115F mutation, a probe for detection of reverse transcriptase gene F116Y mutation, and the like.

The invention discloses a peganum harmala lipid transfer protein (PHP) and relates to the preparation and use of new protein with antifungal, anticancer and antivirus activities. The method uses seeds of a peganum harmala plant as raw materials and comprises the following steps: preparing a coarse product, performing cationic exchange chromatographic separation and purifying by using a molecular sieve; and gradually separating and collecting a purified component having antibacterial activity, dialyzing, desalting, freeze-drying and thus, obtaining purified PHP. In the invention, a filter paper disc agar diffusion method is adopted, and researches prove the protein has growth inhibiting effect on five plant pathogenic fungi, namely alternaria alternate, penicillium degitatum, rhizopus stuolonifer, magnaporthe grisea and penicillium italicum. An 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method proves that the protein has inhibiting effect on proliferation of human esophageal carcinoma cell Eca109, human cervical cancer cells HeLa, human stomach cancer cells MGC-7, mouse melanoma cells B16 and the like. The protein can inhibit the activity of human immunodeficiency virus 1 (HIV-1) reverse transcriptase. The protein can be used for developing medicines for resisting agricultural pathogenic fungi, tumors and viruses.

The invention relates to a mesenchymal stem cell. The cell carries an HIV-1 (Human Immunodeficiency Virus-1) receptor and an HIV-1 coreceptor. When BMSCs (Bone Marrow Mesenchymal Stems) are infected by HIV-1, an envelope protein gp120 on HIV-1 is combined with the HIV-1 receptor to ensure that gp41 on HIV-1 is exposed, the exposed gp41 is combined with the HIV-1 coreceptor to mediate HIV-1 to enter the BMSCs, and the reverse transcription and replication conditions of HIV-1 in the BMSCs are researched, so that the pathogenesis and pathological characteristics of HIV-1/AIDS (Acquired Immune Deficiency Syndrome) and HIV-1-resistant drugs are researched.

The invention provides application of lignin-class chemical compounds in preparing medicine for healing and preventing acquired immune deficiency syndrome, wherein the lignin-class chemical compounds are 6'-O-methyl honokiol, Randaiol, Magnolignan C and Strebluslignanol. The Strebluslignanol has good human immunodeficiency virus-1 (HIV-1) protease inhibitory activity, and the half maximal inhibitory concentration (IC50) of the Strebluslignanol reaches 35 %mM. The lignin-class chemical compounds are made from cortex magnolia officinal extract.

The invention relates to a novel molecule with a relative structure, which is designed according to the bioisosteric principle and the theories of hydrogen bonding interaction and the like by using a non nucleoside human immunodeficiency virus-1 (HIV-1) reverse transcriptase inhibitor 4-(cyclohexyl methoxyl)-6-phenethyl-2(1H)-pyridone-3-carboxylic acid ethyl ester as a primer. In a general formula I, the definitions of groups are described in claims. Meanwhile, the invention relates to reverse transcriptase activity evaluation of a compound and application of the compound as the HIV-1 reverse transcriptase inhibitor. The conformation of the synthesized novel compound is more easily combined with HIV-1 reverse transcriptase, so that the novel compound is more favorable for inhibiting the activity of the reverse transcriptase and becomes the novel high-activity low-toxicity HIV-1 reverse transcriptase inhibitor.

The invention relates to polysubstituted aromatic diketone compounds as shown in the formula (I) as well as a preparation method and application thereof. R1 in the formula (I) is a substituent group expressed by the formula (I-1), (I-2) or (I-3), and R2 is -H, -F, -Cl, -Br, -CH3 or -OCH3. When R1 is the formula (I-1), the preparation method comprises the following steps: with 2,4-dihydroxyacetophenone as the raw material, enabling the 2,4-dihydroxyacetophenone to be reacted with bromoacetaldehyde ethylene acetal to obtain 1-(4-(2,2-methoxyethoxy)-2-hydroxyphenyl) ethyl ketone; then, cyclizing and enabling the 1-(4-(2,2-methoxyethoxy)-2-hydroxyphenyl) ethyl ketone to be reacted with aryl chloride; finally, rearranging under an alkaline condition to obtain the polysubstituted aromatic diketone compounds. When R1 is the formula (I-2), the method disclosed by the invention is basically same as the method adopted when R1 is the formula (I-1). When R1 is the formula (I-3), the method comprises the following steps: with phloroglucinol as the raw material, methylating to obtain 1,3,5-trimethoxybenzene; then, enabling the 1,3,5-trimethoxybenzene to be reacted with acetyl chloride to obtain 1,1'-(2-hydroxy-4,6-dimethoxy-1,3-phenylene) diethyl ketone; next, enabling the 1,1'-(2-hydroxy-4,6-dimethoxy-1,3-phenylene) diethyl ketone to be reacted with aryl chloride; finally, rearranging under an alkaline condition to obtain the polysubstituted aromatic diketone compounds. The polysubstituted aromatic diketone compounds have an inhibiting effect for HIV-1 (Human Immunodeficiency Virus-1) integrase. The formula (I) is shown in the specification.

Pharmaceutical compositions which comprise HIV Pol DNA vaccines are disclosed, along with the production and use of these DNA vaccines. The pol-based DNA vaccines of the invention are administered directly introduced into living vertebrate tissue, preferably humans, and preferably express inactivated versions of the HIV Pol protein devoid of protease, reverse transcriptase activity, RNase H activity and integrase activity, inducing a cellular immune response which specifically recognizes human immunodeficiency virus-1 (HIV-1). The DNA molecules which comprise the open reading frame of these DNA vaccines are synthetic DNA molecules encoding codon optimized HIV-1 Pol and codon optimized inactive derivatives of optimized HIV-1 Pol, including DNA molecules which encode inactive Pol proteins which comprise an amino terminal leader peptide.

The invention discloses application of recombinant lentivirus to HIV (human immunodeficiency virus) phenotypic drug resistance detection. The recombinant lentivirus is a package body obtained through cotransfection on a 293FT cell or 293T cell by a packaging plasmid, an envelope plasmid and a transferred plasmid, wherein the envelope plasmid is a psPAX2m-pol plasmid; the transferred plasmid is a pHAGE-CMV-Luc-IRES-ZsGreen plasmid. The recombinant lentivirus is safe and efficient; the toxic or side effect is small; the cost is low; when the recombinant lentivirus is applied to HIV phenotypic drug resistance detection, important reference basis can be provided for reasonably and effectively selecting anti-HIV medicine in clinics. The reporter genes Luciferase and ZsGreen of the transferred plasmid are positioned on pHAGE-CMV-Luc-IRES-ZsGreen; the expression of the reporter genes Luciferase and ZsGreen is controlled by a CMV (cytomegalovirus) promoter, so that the antiviral effect of an HIV-1 (human immunodeficiency virus-1) inhibitor can be simply obtained through the observation under an inverted fluorescence microscope or the determination of luciferase activity; after a pol region is imported, various cells can realize drug resistance detection by the recombinant lentivirus with the transferred plasmid; the universality is high.

The invention belongs to the field of biotechnology, particularly relates to the field of virus detection, and more particularly relates to a PCR primer group, probe and kit and detection method for detecting human immunodeficiency virus-1 2-LTR DNA. The detection primer group provided by the invention comprises nucleotide sequences shown as SEQ ID NO: 1-6; and the detection probe comprises nucleotide sequences shown as SEQ ID NO: 7-8. The detection primer group provided by the invention is different from the conventional real-time fluorescence quantitative PCR; through introduction of 3 pairs of real-time fluorescent quantitative PCR primers, that is, 6 primers, adoption of multiple cycles, and increase of the primer annealing temperature, the PCR detection method for detecting the HIV-1 2-LTR DNA, provided by the invention, achieves extremely high sensitivity and specificity, and the minimum detection limit can reach 2 copies per million cells in each PCR; and moreover, when a quantitative cell reaction system is further added in the PCR reaction, the HIV-1 2-LTR DNA and the number of cells can be quantified at the same time in the same PCR reaction (in the conventional method, the cell count is additionally required).

The invention provides a human immunodeficiency virus type 1 (HIV-1) nucleic acid quantitative detection kit. Specifically, according to the detection kit provided by the invention, HIV-1 RNA nucleicacid is identified and quantified through a real-time fluorescent polymerase chain reaction technology. The detection kit can be widely applied in multiple fields of HIV-induced AIDS window detection,clinical diagnosis, scientific research, efficacy tracking, inspection and quarantine, plague prevention and control and the like.

The invention provides a method for separating and purifying inclusion body-type HIV-1 (human immunodeficiency virus-1) protease from a prokaryotic system. In the method, a low-concentration detergent and ultrasonic disruption are combined to separate impurity protein from target protein, and an Amicon stirring type ultrafiltration device is used in an operation process, so that the purifying time of the inclusion body protein is effectively shortened. Moreover, the protein renaturation in the method is implemented by dialysis renaturation, the dialysis process is mild, and the activity and purity of the renatured protease are relatively high. The protein crystallization growth and enzyme kinetics measurement can be performed through simple ultrafiltration concentration, and the method is applied to the study of crystallography and enzymology.

The invention relates to novel bilaterally-substituted tricyclic compounds and pharmaceutical compositions containing them, for use as medicaments.

Due to their ability to interact with an internal RNA loop and to mimic a protein α-helix these compounds are effective in the treatment and/or prevention of HIV-1 (Human Immunodeficiency Virus-1) infection and other diseases such as those caused by other RNA viruses and by gram-positive and gram-negative bacteria, or infectious or chronic diseases responsive to inhibition of DNA transcription, or infectious or chronic diseases where these compounds can be used to modulate the function of RNA internal loops, or infectious or chronic diseases where these compounds can be used as agonists or inhibitors of α-helical proteins in interaction with other biomolecules.