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Updated: Jun 29, 2025

Identification of Novel CK2 Kinase Substrates Using a Versatile Biochemical Approach
Published on: February 21, 2019
Regulation of cancer progression by CK2: an emerging therapeutic target
Shakeel Hussain1, Yilei Guo1, Yu Huo1
1School of Life Sciences, Jiangsu University, Zhenjiang, 212013, Jiangsu, People's Republic of China.
Abstract:
Casein kinase II (CK2) is an enzyme with pleiotropic kinase activity that catalyzes the phosphorylation of lots of substrates, including STAT3, p53, JAK2, PTEN, RELA, and AKT, leading to the regulation of diabetes, cardiovascular diseases, angiogenesis, and tumor progression. CK2 is observed to have high expression in multiple types of cancer, which is associated with poor prognosis. CK2 holds significant importance in the intricate network of pathways involved in promoting cell proliferation, invasion, migration, apoptosis, and tumor growth by multiple pathways such as JAK2/STAT3, PI3K/AKT, ATF4/p21, and HSP90/Cdc37. In addition to the regulation of cancer progression, increasing evidence suggests that CK2 could regulate tumor immune responses by affecting immune cell activity in the tumor microenvironment resulting in the promotion of tumor immune escape. Therefore, inhibition of CK2 is initially proposed as a pivotal candidate for cancer treatment. In this review, we discussed the role of CK2 in cancer progression and tumor therapy.
Insights
Casein kinase II (CK2) is a key enzyme in cancer progression, regulating cell growth and immune escape. Inhibiting CK2 shows promise as a pivotal cancer therapy strategy.
Area of Science:
- Biochemistry
- Oncology
- Molecular Biology
Background:
- Casein kinase II (CK2) is an enzyme with broad kinase activity, phosphorylating numerous substrates.
- CK2 is implicated in regulating key cellular processes including proliferation, migration, and apoptosis.
- Elevated CK2 expression correlates with poor prognosis in various cancers.
Purpose of the Study:
- To review the multifaceted role of CK2 in cancer progression.
- To explore the potential of CK2 inhibition as a therapeutic strategy in oncology.
Main Methods:
- Literature review of studies on CK2 function in cancer.
- Analysis of CK2's involvement in signaling pathways (e.g., JAK2/STAT3, PI3K/AKT).
- Examination of CK2's impact on the tumor microenvironment and immune response.
Main Results:
- CK2 regulates critical pathways driving tumor growth, invasion, and metastasis.
- CK2 influences tumor immune escape by modulating immune cell activity.
- CK2's involvement in angiogenesis and other cancer-related processes was discussed.
Conclusions:
- CK2 is a significant regulator of cancer progression and immune evasion.
- Targeting CK2 presents a promising therapeutic avenue for cancer treatment.
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