摘要:
The present invention describes a method of selective peptide isolation for the identification and quantitative analysis of proteins in complex mixture. The method comprises the selective isolation from every protein of those peptides that neither contain arginine nor histidine (NHNR peptides), and the determination of the relative concentrations of one or several proteins in different samples from the ratio between the areas of the estimated theoretical spectra for the NHNR peptides labeled with different isotopes in each sample. The determination of the relative concentration of proteins is valid for any type of isotopic label of the NHNR peptides. The method avoids the separation and purification of the proteins present in a complex mixture, and the analysis of all peptides generated from the enzymatic digest of the samples. The method is applicable to the identification of proteins with vacunal, therapeutic and diagnostic aims.
摘要:
A method for the isolation and expression of a gene coding for dextranase of the fungus Penicillium minioluteum. This enzyme of fungal origin is produced by expression at high levels in yeast. For this purpose, a cDNA copy of the mRNA coding for dextranase enzyme of the Penicillium minioluteum fungus was isolated and sequenced. This cDNA was transfered into Pichia pastoris cells. Recombinant yeasts capable of secreting dextranase to the culture medium were obtained thereby. The dextranase enzyme obtained can be used, e.g. in the sugar industry to hydrolyze the dextran in cane juices to increase the sugar production.
摘要:
The present invention relates to the use of pituitary adenylate cyclase activating polypeptide (PACAP) in the treatment of viral diseases and infectious diseases caused by viruses in aquatic organisms. PACAP, alone or combined with an antiviral molecule, demonstrated its effectiveness by increasing the survival of fish or crustaceans infected by viruses when it was administered orally, by injection or by immersion baths. Furthermore, it was observed that treated organisms keep or increase its weight as compared to infected and non-treated organisms. PACAP or PACAP-containing combinations decreased the viral load in tissues and organs susceptible to viral infections as it was determined by RT-PCR.
摘要:
This invention is related to a pharmaceutical combination that contains a Casein kinase 2 (CK2) peptide inhibitor (termed P15) along with the standard chemotherapeutic drugs used in cancer treatment and which are administered together, separated or sequentially. The chemotherapeutic drugs include cisplatin, taxol, alkaloids from Vinca, 5-fluorouracil, doxorubicin, cyclophosphamide, etoposide, mitomycin C, imatinib, iressa, velcade (bortezomib), cytarabine (Ara C), fludarabine and mitroxantrone. The synergism between the P15 peptide and the anticancer drugs achieves an efficient concentration of each cytostatic drug in the combination which is from 10- to 100-fold lower than that for each cytostatic drug alone. The pharmaceutical combination described in this invention exhibits lower toxicity compared to that reported by the anticancer therapeutics and therefore, it represents a crucial advantage for its use in cancer therapy. Furthermore, the sequential administration of this pharmaceutical combination through the pretreatment with the P15 peptide leads to the chemo sensibilization of refractory tumors to the anticancer therapeutics.
摘要:
This invention is related to a pharmaceutical combination that contains a Casein kinase 2 (CK2) peptide inhibitor (termed P15) along with the standard chemotherapeutic drugs used in cancer treatment and which are administered together, separated or sequentially. The chemothearapeutic drugs include cisplatin, taxol, alkaloids from Vinca, 5-fluorouracil, doxorubicin, cyclophosphamide, etoposide, mitomycin C, imatinib, iressa and velcade (bortezomib). The synergism between the P15 peptide and the anticancer drugs achieves an efficient concentration of each cytostatic drug in the combination which is from 10- to 100-fold lower than that for each cytostatic drug alone. The pharmaceutical combination described in this invention exhibits lower toxicity compared to that reported by the anticancer therapeutics and therefore, it represents a crucial advantage for its use in cancer therapy. Furthermore, the sequential administration of this pharmaceutical combination through the pretreatment with the P15 peptide leads to the chemo sensibilization of refractory tumors to the anticancer therapeutics.
摘要:
The present invention is related with the isolation and cloning of a new gene, the production of the protein encoded by this gene by using recombinant systems, and the use of this antigen in a vaccine formulation as a purified protein and/or naked DNA, to induce an immune response in aquatic organisms against different ectoparasite species, including the known as sea lice, and pathogens associated with these infestations. The vaccine preparations, administered by oral route, immersion bath or injection, demonstrated its efficacy by producing IgM humoral immune response and reducing the number of parasites per fish in the vaccinated fishes.
摘要:
The present invention is related to the use of variants of the Pituitary Adenylate Cyclase-Activating Polypeptide (PACAP) to stimulate the growth and to improve the immunological system of aquatic organisms. The variants of the peptide were provided by immersion, injection or as a food additive.
摘要:
This invention describes a method for treating cancer by increasing the nuclear localization of the COMMD1 protein, which is associated with decreasing or blocking the proliferation of the cancer cell. The invention is also related to the use of agents that increase nuclear localization of the COMMD1 protein, in the manufacture of a medicament for cancer therapy. These agents can be peptides or proteins, among other compounds. The invention is also related to the optimization of a peptide, coming from the sequence HARIKPTFRRLKWKKYKGKFW, to increase the nuclear localization of the protein COMMD, and thus, to increase the antitumor effect of this peptide.
摘要:
The present invention is relative to chimerical peptides, whose primary structure holds at least one segment which inhibits the activation of the NS3 protease of a virus from the Flaviviridae family, they also contain a cell penetrating segment and they are capable of inhibiting or attenuate the viral infection. This invention is also relative to pharmaceutical compounds which contain these chimerical peptides for the prevention and/or treatment of the infection caused by a virus of the Flaviviridae family.
摘要:
The present invention is related with the field of the medicine, particularly with the use of an APL peptide or its analogues derived from the human heat shock protein of 60 kDa, for the manufacture of a pharmaceutical composition for the treatment of Crohn's disease, ulcerative colitis and diabetes mellitus type 1. This peptide is biodistributed into the gastrointestinal tract and also promotes the induction of apoptosis in activated intestinal lamina propria and peripheral blood T cells of patients with Crohn's disease. Furthermore, this peptide induces apoptosis in mononuclear cells of patients with diabetes mellitus type 1.