PDF Development of Chemotherapy with Cell Biology Diagrams CDK inhibitors have been studied since the 1990s. The first generation of CDK inhibitors are pan-CDK inhibitors, including Flavopiridol and Roscovitine, etc. The main function of these inhibitors is to block cell cycle and inhibit cell proliferation by inhibiting the CDK enzyme activity.
Example of inhibitors that, in early clinical trials, are targeting cyclin-dependent kinases (cdk s) acting in or outside of the cell cycle.Inhibitors of cdk also inhibit transcription. A key enzyme in the transcription machinery, rna polymerase ii, is phosphorylated by several cdk s 34, 35.The most important regulator is cdk 9/cyclin T. Inhibition of cdk 9/cyclin T by a cdki such as
Immunomodulation by anticancer cell cycle inhibitors Biology Diagrams
Deregulation of the cell cycle is a hallmark of the transformation of normal cells into tumor cells. Given its importance in tumorigenesis, several cell cycle inhibitors have emerged as potential therapeutic drugs for the treatment of cancers-both as single-agent therapy and in combination with traditional cytotoxic or molecular targeting agents.
First identified as cell cycle inhibitors mediating the growth inhibitory cues of upstream signaling pathways, the cyclin-CDK inhibitors of the Cip/Kip family p21Cip1, p27Kip1, and p57Kip2 have emerged as multifaceted proteins with functions beyond cell cycle regulation. In addition to regulating the cell cycle, Cip/Kip proteins play important roles in apoptosis, transcriptional regulation
cycle inhibitors for cancer therapy Biology Diagrams
The cell cycle blockade imposed by CDK4/CDK6 inhibitors is not necessarily irreversible 64,66, and this may contribute to disease progression not only upon the recovery of tumour cell