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:
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, mitomicin C, imatinib, iressa and velcade (vortezomib). 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 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:
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:
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 related to the field of the pharmaceutical industry, and describes a conserved area on the surface of the E protein that can be used for the development of wide-spectrum antiviral molecules to be employed in the prophylaxis and/or treatment of infections due to Dengue Virus serotypes 1-4 and other flaviviruses. The invention also covers chimeric proteins to be used as vaccines or as a prophylactic or therapeutic treatment against the four serotypes of Dengue Virus and other flaviviruses.