Cyclin-dependent kinase and protein kinase C inhibitors: A novel class of antineoplastic agents in clinical development Journal Article


Authors: Kaubisch, A.; Schwartz, G. K.
Article Title: Cyclin-dependent kinase and protein kinase C inhibitors: A novel class of antineoplastic agents in clinical development
Abstract: Malignant cells have acquired adaptations, which give them a growth and survival advantage over normal cells. One effect of many of these adaptations is that many cancerous cells are less likely to undergo programmed cell death (apoptosis) and, moreover, are resistant to chemotherapy-induced apoptosis. Other features of neoplastic cells are the loss of regulated or orderly progression through the cell cycle. In normal and cancerous cells, a balance between proapoptotic and antiapoptotic signals exists. Protein kinase C (PKC) is a cellular serine/threonine kinase with a central role in the mediation of mitogenic signals as well as the regulation of anti-apoptotic signals. Inhibition of PKC by a novel group of chemical agents (PKC inhibitors) can induce apoptosis in some malignant cell lines, act as differentiating agents, and enhance the effect of cytotoxic chemotherapy. Other kinase inhibitors are potent inhibitors of kinases involved in the control of cell cycle progression (cyclin-dependent kinases [cdks]). Cdk inhibitors are able to induce cell cycle arrest in neoplastic cells and also act as enhancers of chemotherapy-induced apoptosis. The catalytic domain of different classes of kinases (PKC and cdk) share considerable homology. As a result, many kinase inhibitors that act by blocking the catalytic site are not highly specific and may act as inhibitors of both PKC and cdks. Preclinical studies point to potential applications for some of these PKC/cdk inhibitors, and current clinical trials are exploring the role these agents might have in cancer therapy. In this article, we discuss the rationale for the development of this novel class of agents and highlight those drugs, which have shown promise in clinical testing.
Keywords: cancer chemotherapy; cancer survival; unclassified drug; clinical trial; review; cisplatin; doxorubicin; fluorouracil; area under the curve; cancer growth; dose response; drug potentiation; nonhuman; antineoplastic agents; drug targeting; cytarabine; neoplasms; animal; mice; cell cycle; unindexed drug; apoptosis; enzyme inhibition; antineoplastic activity; cytotoxicity; drug mechanism; enzyme inhibitors; cancer cell; drug clearance; protein kinase c; rats; flavopiridol; drug blood level; drug half life; safingol; mitomycin; cyclin-dependent kinases; bryostatin 1; cyclin dependent kinase; cyclin dependent kinase inhibitor; drug transport; clinical trials; cyclin-dependent kinase; drug induced disease; multidrug resistance; nocodazole; protein kinase c inhibitor; ucn-01; drug solubility; cdk inhibitor; staurosporine; bisindolylmaleimide; isis 3521; bryostatin-1; 7 hydroxystaurosporine; hypericin; cancer; human; priority journal; ro 31 7453; pkc inhibitor; support, u.s. gov't, p.h.s.; calphostin c; alsterpaullone; calphostin; cgp 41251; gf-109203x; isis 3521/cgp 64128a; kenpaullone; ly333531; 2 [1 (3 dimethylaminopropyl) 3 indolyl] 3 (3 indolyl)maleimide; 9 [(dimethylamino)methyl] 6,7,10,11 tetrahydro 9h,18h 5,21; 9 [(dimethylamino)methyl] 6,7,10,11 tetrahydro 9h,18h 5,21:12,17 dimethenodibenzo[e,k]pyrrolo[3,4 h][1,4,13]oxadiazacyclohexadecine 18,20(19h) dione; 9 bromo 7,12 dihydroindolo[3,2 d 1]benzazepin 6(5h) one; 9 nitro 7,12 dihydroindolo[3,2 d 1]benzazepin 6(5h) one; kw 2401; n benzoylstaurosporine; nsc 664704; nsc 705701; paullones; ro 31 8220; ro 32 0432; salfingol; staurosporine derivative
Journal Title: The Cancer Journal
Volume: 6
Issue: 4
ISSN: 1528-9117
Publisher: Lippincott Williams & Wilkins  
Date Published: 2000-07-01
Start Page: 192
End Page: 212
Language: English
PUBMED: 11038138
PROVIDER: scopus
DOI/URL:
Notes: Export Date: 18 November 2015 -- Source: Scopus
Citation Impact
MSK Authors
  1. Gary Schwartz
    385 Schwartz