38 results about "Cyclin-dependent kinase 4" patented technology

Methods for reducing or preventing the effects of ionizing radiation in healthy cells arc provided. The methods relate to the use of selective cyclin-dependent kinase (CDK) 4 / 6 inhibitors to induce transient quiescence in CDK4 / 6 dependent cells, such as hematopoietic stem cells and / or hematopoietic progenitor cells. Radioprotection can be effected in mammals by treatment with selective CDK4 / 6 inhibitor compounds either before, at the same time as, or after exposure to the ionizing radiation.

This invention is in the area of improved compounds, compositions and methods of transiently protecting healthy cells, and in particular hematopoietic stem and progenitor cells (HSPC) as well as renal cells, from damage associated with DNA damaging chemotherapeutic agents. In one aspect, improved protection of healthy cells is disclosed using disclosed compounds that act as highly selective and short, transiently-acting cyclin-dependent kinase 4 / 6 (CDK 4 / 6) inhibitors when administered to subjects undergoing DNA damaging chemotherapeutic regimens for the treatment of proliferative disorders.

This invention is in the area of improved compounds, compositions and methods of transiently protecting healthy cells, and in particular hematopoietic stem and progenitor cells (HSPC) as well as renal cells, from damage associated with DNA damaging chemotherapeutic agents. In one aspect, improved protection of healthy cells is disclosed using disclosed compounds that act as highly selective and short, transiently-acting cyclin-dependent kinase 4 / 6 (CDK 4 / 6) inhibitors when administered to subjects undergoing DNA damaging chemotherapeutic regimens for the treatment of proliferative disorders.

Disclosed are polymorphs of the isethionate salt of 6-acetyl-8-cyclopentyl-5-methyl-2-(5-piperazin-1-yl-pyridin-2-ylamino)-8H-pyrido[2,3-d]pyrimidin-7-one, which is a selective cyclin-dependent kinase 4 (CDK4) inhibitor useful for treating inflammation and cell proliferative diseases such as cancer and restenosis.

Methods for reducing or preventing the effects of cytotoxic compounds in healthy cells are provided. The methods relate to the use of selective cyclin- dependent kinase (CDK) 4 / 6 inhibitors to induce transient quiescence in CDK4 / 6 dependent cells, such as hematopoietic stem cells and / or hematopoietic progenitor cells. Also described is a method of selecting compounds for reducing or preventing the effects of cytotoxic agents compounds in healthy cells.

This invention is in the area of improved therapeutic combinations for and methods of treating selected retinoblastoma (Rb)-negative cancers and Rb-negative abnormal cellular proliferative disorders using particular topoisomerase inhibitors and specific cyclin-dependent kinase 4 / 6 (CDK4 / 6) inhibitors. In one aspect, the improved treatment of select Rb-negative cancers is disclosed using specific compounds disclosed herein in combination with a topoisomerase I inhibitor.

Novel 4-aminopyrimidine-5-one derivatives are disclosed. These compounds inhibit cyclin-dependent kinases, in particular cyclin-dependent kinase 4 (Cdk4). These compounds and their pharmaceutically acceptable salts and esters have antiproliferative activity and are useful in the treatment or control of cancer, in particular solid tumors. This invention is also directed to pharmaceutical compositions containing such compounds and to methods of treating or controlling cancer, most particularly the treatment or control of breast, lung, colon and prostate tumors. Also disclosed are intermediates useful in the preparation of these novel 4-aminopyrimidine-5-one derivatives.

This invention is in the area of tricyclic lactam compounds for and methods of treating selected Rb-positive cancers and other Rb-positive abnormal cellular proliferative disorders while minimizing the deleterious effects on healthy cells, for example healthy Hematopoietic Stem Cells and Progenitor Cells (HSPCs), associated with current treatment modalities. In one aspect, treatment of select Rb-positive cancers is disclosed using specific compounds disclosed herein. In certain embodiments, the compounds described herein act as selective cyclin-dependent kinase 4 / 6 (CDK 4 / 6) inhibitors when administered to subjects.

This invention is in the area of improved therapeutic combinations for and methods of treating selected retinoblastoma (Rb)-negative cancers and Rb-negative abnormal cellular proliferative disorders using particular topoisomerase inhibitors and specific cyclin-dependent kinase 4 / 6 (CDK4 / 6) inhibitors. In one aspect, the improved treatment of select Rb-negative cancers is disclosed using specific compounds disclosed herein in combination with a topoisomerase I inhibitor.

A combination of a CDK4 / 6 inhibitor and an mTOR inhibitor for the treatment of cancer.

The invention relates to the field of pharmaceutical chemistry and discloses an indolylcarboxylic acid compound represented by a formula (I) shown in the description and an application thereof in the preparation of antitumor drugs. The indolylcarboxylic acid compound disclosed by the invention plays a role in inhibiting cyclin-dependent kinase 4 and can be used for preparing the antitumor drugs and providing more pharmaceutical choices for tumor treatment.

The invention belongs to the field of medicaments and veterinary medicines and discloses application of trichostatin A (TSA) to preparation of a medicament for inhibiting activity of swine ovary granular cells. In the invention, the influence of the TSA to the activities of the swine ovary granular cells is systemically studied, and a result shows that the TSA has no influence to the growth of the swine ovary granular cells at low concentration (below 10ng / mL), with the increase of the concentration, the growth of the swine ovary granular cells is inhibited (P<0.05), and the inhibition effect is dose-dependent. After the granular cells are treated by using 200ng / mL TSA, the cell cycle is retardant within a period G0 / G1, and the marked decrease of gene expression of Cyclin D2 and CDK4 (Cyclin-Dependent Kinase 4) is possible to be an important reason for the cycle retardance. Accordingly, the TSA can be applied to preparation of the medicament for inhibiting the activities of the swine ovary granular cells.

The present disclosure pertains to a pharmaceutical combination comprising (a) an alpha-isoform specific PI3K inhibitor, (b) a cyclin dependent kinase 4 / 6 (CDK4 / 6) inhibitor, and (c) an antimetabolite antineoplastic agent; combined preparations and pharmaceutical compositions thereof; the uses of such a combination in the treatment or prevention of cancer; and methods of treating or preventing cancer in a subject comprising administering a therapeutically effective amount of such combination.

This invention relates to the treatment of breast cancer in a subject, for example a female subject. Including methods of: treating metastatic breast cancer; refractory breast cancer; AR-positive breast cancer; AR-positive refractory breast cancer; AR-positive metastatic breast cancer; AR-positive and ER-positive breast cancer; triple negative breast cancer; advanced breast cancer; breast cancer that has failed selective estrogen receptor modulator (SERM) (tamoxifen, toremifene, raloxifene), gonadotropin-releasing hormone (GnRH) agonist (goserelin), aromatase inhibitor (AI) (letrozole, anastrozole, exemestane), cyclin-dependent kinase 4 / 6 (CDK 4 / 6) inhibitor (palbociclib (Ibrance), ribociclib (Kisqali), abemaciclib (Vorzenio)), mTOR inhibitor (everolimus), trastuzumab (Herceptin, ado-trastuzumab emtansine), pertuzumab (Perjeta), lapatinib, neratinib (Nerlynx), olaparib (Lynparza) (an inhibitor of the enzyme poly ADP ribose polymerase (PARP)), bevacizumab (Avastin), and / or fulvestrant treatments; metastasis in a subject suffering from breast cancer; HER2-positive; treating a subject suffering from ER mutant expressing breast cancer and / or treating breast cancer in a subject, by first determining the 18F-16β-fluoro-5α-dihydrotestosterone (18F-DHT) tumor uptake and identifying said subject as having AR-positive breast cancer based on 18F-DHT tumor uptake, comprising administering to the subject a therapeutically effective amount of a selective androgen receptor modulator (SARM) compound.