期刊
BIOFACTORS
卷 36, 期 3, 页码 187-195出版社
WILEY
DOI: 10.1002/biof.96
关键词
protein kinase CK2; casein kinase 2; signaling; cancer; NF-kappa B; nanocapsule; nanoparticle; tenfibgen; tenascin; antisense; siRNA
资金
- Department of Veterans Affairs Research Funds
- National Cancer Institute (NIH) [U01-CA151362, R01-DK067436]
- DOD [W81XWH-05-C-0084, ZIA-DC-00016]
Protein kinase CK2, a protein serine/threonine kinase, plays a global role in activities related to cell growth, cell death, and cell survival. CK2 has a large number of potential substrates localized in diverse locations in the cell including, for example, NF-kappa B as an important downstream target of the kinase. In addition to its involvement in cell growth and proliferation it is also a potent suppressor of apoptosis, raising its key importance in cancer cell phenotype. CK2 interacts with diverse pathways which illustrates the breadth of its impact on the cellular machinery of both cell growth and cell death giving it the status of a master regulator in the cell. With respect to cancer, CK2 has been found to be dysregulated in all cancers examined demonstrating increased protein expression levels and nuclear localization in cancer cells compared with their normal counterparts. We originally proposed CK2 as a potentially important target for cancer therapy. Given the ubiquitous and essential for cell survival nature of the kinase, an important consideration would be to target it specifically in cancer cells while sparing normal cells. Towards that end, our design of a tenascin based sub-50 nm (i.e., less than 50 nm size) nanocapsule in which an anti-CK2 therapeutic agent can be packaged is highly promising because this formulation can specifically deliver the cargo intracellularly to the cancer cells in vivo. Thus, appropriate strategies to target CK2 especially by molecular approaches may lead to a highly feasible and effective approach to eradication of a given cancer. (C) 2010 International Union of Biochemistry and Molecular Biology, Inc. Volume 36, Number 3, May/June 2010, Pages 187-195 . E-mail: ahmedk@umn.edu
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