摘要:
Provided herein are compositions that include a metal nanoparticle functionalized with a miRNA and a targeting biomolecule. The compositions may be used to prevent or reduce the rate of metastasis of cancer cells. The compositions also may include a drug, such as a chemotherapeutic agent. The compositions also may include a hydrogel in which the metal nanoparticles are dispersed. Methods of miRNA and/or drug delivery and kits also are provided.
摘要:
The present invention relates to a peptide suppressing the phosphorylation of threonine(T120), the 120th residue of TSPYL5(testis-specific Y-like protein 5), which is specifically as follows. The present inventors constructed T120D, the mutant of the 120th residue threonine(T120) of TSPYL5, and T120A-TSPYL5 gene and then transfected cells with them in order to investigate the effect of phosphorylation on T120 residue. As a result, wild-type TSPYL5 and T120D moved into nucleus and stayed there. But in the case of T120A-TSPYL5, TSPYL5 did not move into nucleus and instead it was expressed only in cytoplasm. The protein could not bind to AKT, either. Instead, ubiquitination of TSPYL5 was increased but SUMOylation was inhibited. Also, the expressions of ALDH1-A1, -A3, CD44 gene and protein were reduced, and thereby the growth and metastasis of lung cancer cells were suppressed and sphere formation was reduced. Based on the observation above, the inventors constructed the peptide composed of the amino acid sequences represented by SEQ. ID. NO: 43 or NO: 44 that could inhibit phosphorylation of the 120th residue threonine of TSPYL5. The said peptide can be effectively used as a composition for the inhibition of cancer cell growth, metastasis, and cancer stem cell growth.
摘要:
This document provides materials and methods for treating cancer metastases. For example, materials and methods for using a CDK 4/6 inhibitor and/or a CDK1 inhibitor to prevent cancer cell metastasis, prevent further cancer cell metastasis, reduce the number of metastatic cancer cells, and/or reduce the risk of cancer cell metastasis within a mammal ( e.g ., a human) are provided.
摘要:
The presently disclosed subject matter provides compositions, methods, and kits comprising shape memory particles that can be used for delivering a drug and/or treating a disease or disorder in a patient. Specifically, shape changes in the presently disclosed shape memory particles can be used to control drug delivery spatially and/or temporally in a patient. Also provided are compositions, methods, and kits comprising nanoparticles and hypoxia-inducible factor (HIF) inhibitors for inhibiting HIF activity in a patient and/or treating a hypoxia-associated disease or disorder.
摘要:
Provided herein are compositions and methods for alleviating cancer or infection in a subject by administering a therapeutically effective amount of a pharmaceutical composition comprising an isolated PD-1 variant polypeptide. The PD-1 variant polypeptide can inhibit the activity of PD-1 by, for example, competitive or non-competitive inhibition of the interaction between wild-type PD-1 and one or more of its ligands, PD-Ll and PD-L2.
摘要:
The invention provides compounds for use in the treatment of a disease or condition selected from brain disorders and triple-negative breast cancer, the compounds being of the formula (1) or a salt or tautomer thereof; wherein: X 1 is N or N+(O'); X 2 is N or CH; Q is selected from a C1-3 alkylene group, cyclopropane-1,1-diyl and cyclobutane- 1,1-diyl; R 1 is selected from hydrogen and C 1-4 alkyl;R 2 , R 3 and R 4 are the same or different and each is selected from hydrogen and fluorine; Ar 1 is a benzene, thiophene, naphthyl or pyridine ring optionally substituted with 1, 2 or 3 substituents selected from fluorine; chlorine; bromine; CM hydrocarbyl; C 1-4 hydrocarbyloxy; trifluoromethyl; difluoromethyl; cyano; trifluoromethoxy; difluoromethoxy; Ar 2 is a monocyclic 5- or 6-membered heteroaryl ring containing 1, 2 or 3 heteroatom ring members selected from O, N and S and being optionally substituted with 1, 2 or 3 substituents selected from fluorine; C 1-4 hydrocarbyl; amino; mono-C 1-4 hydrocarbylamino and di-C 1-4 hydrocarbylamino; and wherein, in each substituent consisting of or containing C 1-4 hydrocarbyl, the C 1-4 hydrocarbyl is selected from C 1-4 alkyl, C 2-4 alkenyl, C 2-4 alkynyl, cyclopropyl, cyclobutyl and cyclopropylmethyl.
摘要:
The present invention provides compositions and methods for treating cancer or a metastasis thereof in a subject. In some embodiments, the methods involve administering a composition comprising therapeutically effective amount of at least one immune stimulator to the subject. In some embodiments, a combination of at least two immune stimulators is used for the treatment. In some embodiments, the combination includes an alpha thymosin peptide and an additional immune stimulator, and/or optionally one or more additional anti-cancer agents.
摘要:
The present invention relates to methods and compounds for treating or preventing cancer. Methods and compositions provided include including inhibiting or suppressing the development, maintenance, and proliferation of cancers, including blocking or inhibiting cancer cell metastasis.