466 results about "Interferon alfa" patented technology

Thiazolo-, oxazolo- and selenazolo[4,5-c]quinolin-4-amines and analogs thereof are described including methods of manufacture and the use of novel intermediates. The compounds are immunomodulators and induce cytokine biosynthesis, including interferon and/or tumor biosynthesis, necrosis factor, and inhibit the T-helper-type 2 immune response. The compounds are further useful in the treatment of viral and neoplastic diseases.

The invention provides humanized immunoglobulins that bind to and neutralize gamma-interferon. The antibodies are useful for treatment of diseases of the immune system, particularly autoimmune diseases.

New triterpenoid derivatives with various substituents at the C-17 position of 2-cyano-3,12-dioxooleana-1,9(11)-dien-28-oic acid (CDDO) were synthesized. Among them, 2-cyano-3,12-dioxooleana-1,9(11)-dien-28-onitrile (CNDDO), 1-(2-cyano-3,12-dioxooleana-1,9(11)-dien-28-oyl) imidazole, 1-(2-cyano-3,12-dioxooleana-1,9(11)-dien-28-oyl)-2-methylimidazole, 1-(2-cyano-3,12-dioxooleana-1,9(11)-dien-28-oyl)-4-methylimidazole show extremely high inhibitory activity (IC₅₀=0.01-1 pM level) against production of nitric oxide induced by interferon-γ in mouse macrophages. These compounds can be used in the prevention or treatment of diseases such as cancer, Alzheimer's disease, Parkinson's disease, multiple sclerosis, rheumatoid arthritis, and other inflammatory diseases. All the new triterpenoid derivatives are more potent than previously known CDDO.

The present invention provides an 8-oxoadenine compound having immunemodulating activities such as an interferon inducing activity and useful as an antiviral agent and antiallergic agent, which is represented by the following formula (1):

[wherein the ring A represents a 6-10 membered aromatic carbocyclic ring and the like, R represents a halogen atom, an alkyl group and the like, n represents an integer of 0-2, Z¹ represents alkylene, X² represents oxygen atom, sulfur atom, SO₂, NR⁵, CO, CONR⁵, NR⁵CO and the like, Y¹, Y² and Y³ represent independently a single bond or an alkylene group, X¹ represents oxygen atom, sulfur atom, NR⁴ (R⁴ is hydrogen atom or an alkyl group) or a single bond, R² represents a substituted or unsubstituted alkyl group, R¹ represents hydrogen atom, hydroxy group, an alkoxy group, an alkoxycarbonyl group or a haloalkyl group]

or its pharmaceutically acceptable salt.

Methods of treating patients having susceptible viral infections, especially chronic hepatitis C infection by administering to said patient a therapeutically effective amount of a combination therapy of interferon-alfa and ribavirin for a time sufficient to lower HCV-RNA in association with a therapeutically effective amount of an antioxidant for a time sufficient to ameliorate ribavirin-related hemolysis are disclosed.

The present invention provides isolated human monoclonal antibodies that bind to IFNAR-1 and that are capable of inhibiting the biological activity of Type I interferons. Immunoconjugates, bispecific molecules and pharmaceutical compositions comprising the antibodies of the invention are also provided. The invention also provides methods for inhibiting Type I interferon-mediated disorders using the antibodies of the invention, including methods for treating autoimmune disorders, transplant rejection or Graft Versus Host Disease using the antibodies of the invention.

Stabilized pharmaceutical compositions comprising substantially monomeric interferon-beta (IFN-β) and methods useful in their preparation are provided. The compositions comprise the IFN-β solubilized in a low-ionic-strength formulation that maintains the composition at a pH of about 3.0 to about 5.0. Methods for preparing these compositions, and for increasing solubility of IFN-β in pharmaceutical compositions, are provided.

The present invention relates to polypeptides derived from single domain heavy chain antibodies directed to interferon gamma. It further relates to single domain antibodies that are Camelidae VHHs. It further relates to methods of administering said polypeptides. It further relates to protocols for screening for agents that modulate the IFN-gamma receptor, and the agents resulting from said screening.

The present invention provides particles comprising chitosan, or a derivative thereof, useful as delivery vehicles for polynucleotides encoding polypeptides, compositions comprising such particles and a pharmaceutically acceptable carrier, and methods for delivering polynucleotides using such particles. Optionally, the particles of the invention further comprise a lipid component. The present invention further provides a method for enhancing interferon-gamma expression to regulate the production of cytokines secreted by T-helper type 2 (Th2) cells within a subject by administering an effective amount of a particle of the subject invention to the subject, wherein the particle comprises a polynucleotide encoding interferon-gamma.

The present invention provides methods of treating gastrointestinal inflammation, methods of treating inflammatory bowel disease, methods of treating Crohn's Disease, and methods of treating ulcerative colitis in an individual. The methods generally involve administering an effective amount of an agent that increases the level of a Type I interferon and/or that activates a Type I interferon signaling pathway in the individual.

The invention relates to application of diamine formyl dehydrogenated silybin serving as a medicament for curing viral hepatitis B, in particular to application of a flavonolignan of dehydrogenated silibinin esters of which the ring A and the ring E have diamine formyl-methoxyl substituents or pharmaceutically acceptable salts thereof in preparation of a medicament for clearing HBsAg and HBeAg and a medicament for inhibiting HBV DNA replication. The flavonolignan of dehydrogenated silibinin esters of which the ring A and the ring E have diamine formyl-methoxyl substituents has extremely high HBsAg and HBeAg inhibiting activities; when the flavonolignan of dehydrogenated silibinin esters of which the ring A and the ring E have diamine formyl-methoxyl substituents is at a concentration of 20 mu g/ml, the inhibition rates of the HBsAg and the HBeAg are respectively 94.4 percent and 95.7 percent which exceed 5.9 times and 5.7 times those of a positive control alpha-interferon; and simultaneously the inhibition rate of the HBV DNA is 99.7 percent when the flavonolignan of dehydrogenated silibinin esters of which the ring A and the ring E have diamine formyl-methoxyl substituents is at the same concentration, and the inhibition activity of the flavonolignan of dehydrogenated silibinin esters of which the ring A and the ring E have diamine formyl-methoxyl substituents is higher than that of lamivudine and the alpha-interferon. In summary, the flavonolignan of dehydrogenated silibinin esters of which the ring A and the ring E have diamine formyl-methoxyl substituents or the pharmaceutically acceptable salts thereof can be expected for preparing non-nucleoside medicaments for clearing the HBsAg and the HBeAg, inhibiting the HBV DNA replication, and curing the hepatitis B virus infection diseases.

The invention relates to the preparation of brominated flavanonollignan and an application in medicines for treating viral hepatitis B, in particular to a B cyclo-dioxane flavanonollignan compound and a preparation method thereof as well as the application of the compound or pharmaceutically acceptable salts thereof in the preparation of medicines for eliminating hepatitis B surface antigens (HBsAg) and hepatitis B e antigens (HBeAg) and medicines for inhibiting HBV DNA replication. The compound has obvious activity of inhibiting HBsAg and HBeAg, and the intensities of the compound for eliminating HBsAg and HBeAg under the concentration of 20 microgram/millimeter are respectively 2.1 times and 1.2 times larger than the corresponding activity of a positive control medicine alpha-interferon; meanwhile, the compound displays high inhibition ratio more than 57% on HBV DNA at the concentration. The results show that the favonolignan or pharmaceutically acceptable salts thereof can be expected to be used for preparing non-nucleoside type medicines for eliminating HBsAg and HBeAg, inhibiting HBV DNA replication and treating HBV infected diseases.

An adsorbent for removing hepatitis C virus which has the ability to adsorb HCV particles, particularly immune-complex HCV particles, from a patient's body blood safely and with high efficiency and high selectivity for enhancing the efficacy of interferon therapy, an HCV adsorption apparatus including said adsorbent, and a adsorbing method for removing HCV are provided. An adsorbent for removing hepatitis C virus which comprises a compound capable of adsorbing hepatitis C virus as immobilized on a water-insoluble carrier, an adsorption apparatus including said adsorbent, and an adsorbing method for removing HCV.

This invention provides methods for the localized delivery of supplemented tissue sealants, wherein the supplemented tissue sealants comprise at least one composition which is selected from one or more antibodies, analgesics, anticoagulants, anti-inflammatory compounds, antimicrobial compositions, antiproliferatives, cytokines, cytotoxins, drugs, growth factors, interferons, hormones, lipids, demineralized bone or bone morphogenetic proteins, cartilage inducing factors, oligonucleotides polymers, polysaccharides, polypeptides, protease inhibitors, vasoconstrictors or vasodilators, vitamins, minerals, stabilizers and the like. Further provided are methods of using the site-specific supplemented tissue sealants, including preparation of a biomaterial.

The invention relates to application of ring A coupling flavonolignan in preparing medicaments for treating viral hepatitis B, in particular to application of a compound of the formula (1) or a pharmaceutically acceptable salt thereof in preparing medicaments for clearing away HBsAg (Hepatitis B Surface Antigen) and HBeAg (Hepatitis B e Antigen) and suppressing the HBV (Hepatitis B Virus) DNA replication. The intensities of the flavonolignan for clearing away the HBsAg and the HBeAg are respectively 29.4 percent and 29.1 percent in the presence of a concentration of 20 micrograms/milliliter, which is respectively 1.8 times and 1.7 times of the corresponding activity of a positive control medicament (10,000 units/milliliter of alpha-interferon). What is even more exciting is that in the presence of the concentration, the suppression rate of the flavonolignan to the HBV DNA is higher than 83 percent, which is higher than that of Lamivudine which is a positive control and is 2.2 times of that of the alpha-interferon to the HBV DNA. Accordingly, the flavonolignan and the pharmaceutically acceptable salt thereof are indicated to be capable of being expected to be used for preparing non-nucleoside medicaments for clearing away the HBsAg and the HBeAg, suppressing the HBV DNA replication and treating HBV infection diseases.