Abstract
Aurora kinases and cyclin-dependent kinases, which play critical roles in the cell cycle and are frequently overexpressed in a variety of tumors, have been suggested as attractive targets for cancer therapy. JNJ-7706621, a recently identified dual inhibitor of these kinases, is reported to induce cell cycle arrest, endoreduplication, and apoptosis. In the present study, we further investigated the molecular mechanisms underlying these effects. The inhibitor arrested various cells at G2 phase at low concentration, and at both G1 and G2 phases at high concentration. JNJ-7706621 did not prevent localization of Aurora A to the spindle poles, but did inhibit other centrosomal proteins such as TOG, Nek2, and TACC3 in early mitotic phase. Similarly, the drug did not prevent localization of Aurora B to the kinetochore, but did inhibit other chromosomal passenger proteins such as Survivin and INCENP. In the cells exposed to JNJ-7706621 after nocodazole release, Aurora B, INCENP, and Survivin became relocated to the peripheral region of chromosomes, but Plk1 and Prc1 were localized on microtubules in later mitotic phase. Treatment of nocodazole-synchronized cells with JNJ-7706621 was able to override mitotic arrest by preventing spindle checkpoint signaling, resulting in failure of chromosome alignment and segregation. Injection of the drug significantly inhibited the growth of TC135 Ewing’s sarcoma cells transplanted into athymic mice by cell cycle arrest and apoptosis. JNJ-7706621 is a unique inhibitor regulating cell cycle progression at multiple points, suggesting that it could be useful for cell cycle analysis and therapy of various cancers, including Ewing’s sarcoma.
Keywords: Aurora, cell cycle, checkpoint, cyclin-dependent kinase, cytokinesis, Ewing’s sarcoma, Ewing’s sarcoma family of tumor, Inner centromere protein, Hematoxylin-Eosin, Polo-like kinase
Current Cancer Drug Targets
Title:Growth Suppression and Mitotic Defect Induced by JNJ-7706621, an Inhibitor of Cyclin-Dependent Kinases and Aurora Kinases
Volume: 12 Issue: 6
Author(s): A. Matsuhashi, T. Ohno, M. Kimura, A. Hara, M. Saio, A. Nagano, G. Kawai, M. Saitou, I. Takigami, K. Yamada, Y. Okano and K. Shimizu
Affiliation:
Keywords: Aurora, cell cycle, checkpoint, cyclin-dependent kinase, cytokinesis, Ewing’s sarcoma, Ewing’s sarcoma family of tumor, Inner centromere protein, Hematoxylin-Eosin, Polo-like kinase
Abstract: Aurora kinases and cyclin-dependent kinases, which play critical roles in the cell cycle and are frequently overexpressed in a variety of tumors, have been suggested as attractive targets for cancer therapy. JNJ-7706621, a recently identified dual inhibitor of these kinases, is reported to induce cell cycle arrest, endoreduplication, and apoptosis. In the present study, we further investigated the molecular mechanisms underlying these effects. The inhibitor arrested various cells at G2 phase at low concentration, and at both G1 and G2 phases at high concentration. JNJ-7706621 did not prevent localization of Aurora A to the spindle poles, but did inhibit other centrosomal proteins such as TOG, Nek2, and TACC3 in early mitotic phase. Similarly, the drug did not prevent localization of Aurora B to the kinetochore, but did inhibit other chromosomal passenger proteins such as Survivin and INCENP. In the cells exposed to JNJ-7706621 after nocodazole release, Aurora B, INCENP, and Survivin became relocated to the peripheral region of chromosomes, but Plk1 and Prc1 were localized on microtubules in later mitotic phase. Treatment of nocodazole-synchronized cells with JNJ-7706621 was able to override mitotic arrest by preventing spindle checkpoint signaling, resulting in failure of chromosome alignment and segregation. Injection of the drug significantly inhibited the growth of TC135 Ewing’s sarcoma cells transplanted into athymic mice by cell cycle arrest and apoptosis. JNJ-7706621 is a unique inhibitor regulating cell cycle progression at multiple points, suggesting that it could be useful for cell cycle analysis and therapy of various cancers, including Ewing’s sarcoma.
Export Options
About this article
Cite this article as:
Matsuhashi A., Ohno T., Kimura M., Hara A., Saio M., Nagano A., Kawai G., Saitou M., Takigami I., Yamada K., Okano Y. and Shimizu K., Growth Suppression and Mitotic Defect Induced by JNJ-7706621, an Inhibitor of Cyclin-Dependent Kinases and Aurora Kinases, Current Cancer Drug Targets 2012; 12 (6) . https://dx.doi.org/10.2174/156800912801784839
DOI https://dx.doi.org/10.2174/156800912801784839 |
Print ISSN 1568-0096 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-5576 |
Call for Papers in Thematic Issues
Advances in Cancer Biomarkers and Potential Drug Targets: From Diagnosis to Therapy
Cancer biomarkers play a crucial role in the diagnosis, prognosis, and treatment of cancer. They provide valuable information for cancer detection, risk assessment, treatment selection, and monitoring response to therapy. With advancements in molecular biology and high-throughput technologies, there has been an increasing interest in identifying and characterizing cancer biomarkers ...read more
Novel Therapeutic Approaches to Target Drug Resistant Tumors
With the development of disciplines such as chemical biology and molecular biology, the genes or proteins closely related to tumor occurrence and development have gradually become clear. Targeted therapies targeting these genes or proteins provide more effective methods for tumor treatment. Tumor targeted drugs generally only act on specific targets ...read more
ROLE OF IMMUNE AND GENOTOXIC RESPONSE BIOMARKERS IN TUMOR MICROENVIRONMENT IN CANCER DIAGNOSIS AND TREATMENT
Biological biomarkers have been used in medical research as an indicator of a normal or abnormal process inside the body, or of a disease. Nowadays, various researchers are in process to explore and investigate the biological markers for the early assessment of cancer. DNA Damage response (DDR) pathways and immune ...read more
Targeting the battlefield between host and tumor: basic research and clinical practice on reshaping tumor immune microenvironment
Immune system protects host against malignant tumors through effector cells and molecules. Cancer development and its response to therapy are regulated by inflammation, which either promotes or suppresses cancer progression. Chronic inflammation facilitates cancer progression and treatment resistance, whereas induction of acute inflammatory reactions often lead to anti-cancer immune responses. ...read more
- Author Guidelines
- Graphical Abstracts
- Fabricating and Stating False Information
- Research Misconduct
- Post Publication Discussions and Corrections
- Publishing Ethics and Rectitude
- Increase Visibility of Your Article
- Archiving Policies
- Peer Review Workflow
- Order Your Article Before Print
- Promote Your Article
- Manuscript Transfer Facility
- Editorial Policies
- Allegations from Whistleblowers
Related Articles
-
Recent Advances in Selective Estrogen Receptor Modulators for Breast Cancer
Mini-Reviews in Medicinal Chemistry Novel Action and Mechanism of Auranofin in Inhibition of Vascular Endothelial Growth Factor Receptor-3-Dependent Lymphangiogenesis
Anti-Cancer Agents in Medicinal Chemistry The Sour Taste-Modifying Protein (Miraculin), Tyrosinase Inhibitors and Antioxidants from Synsepalum dulcificum
Current Nutrition & Food Science Signal Transduction Pathways of Inflammatory Gene Expressions and Therapeutic Implications
Current Pharmaceutical Design Pleiotropic Effects of Cardioactive Glycosides
Current Medicinal Chemistry Himalayan Plants as a Source of Anti-Cancer Agents: A Review
The Natural Products Journal Guanylate Cyclase C: A Current Hot Target, from Physiology to Pathology
Current Medicinal Chemistry New 2-Imino-2H-Chromene-3(N-aryl)carboxamides as Potential Cytotoxic Agents
Anti-Cancer Agents in Medicinal Chemistry Ribonucleotide Reductase: A Mechanistic Portrait of Substrate Analogues Inhibitors
Current Medicinal Chemistry Administration of Drug and Nutritional Components in Nano-Engineered Form to Increase Delivery Ratio and Reduce Current Inefficient Practice
Recent Patents on Drug Delivery & Formulation Design, Synthesis and Pharmacokinetic Evaluation of a Novel Series of Triazole-Based Src Kinase Inhibitors with Anti-proliferative Activity
Letters in Drug Design & Discovery Antimicrobial Resistance in the 21st Century: A Multifaceted Challenge
Protein & Peptide Letters Targeting the Root Cause of Cystic Fibrosis
Current Drug Targets Headache: One of the Most Common and Troublesome Adverse Reactions to Drugs
Current Drug Safety Vaccine Ingredients: Components that Influence Vaccine Efficacy
Mini-Reviews in Medicinal Chemistry Downregulation of TdT Expression through Splicing Modulation by Antisense Peptide Nucleic Acid (PNA)
Current Pharmaceutical Biotechnology Copper(II) Complexes with Saccharinate and Glutamine as Antitumor Agents: Cytoand Genotoxicity in Human Osteosarcoma Cells
Anti-Cancer Agents in Medicinal Chemistry Ghrelin: New Insight to Mechanisms and Treatment of Postoperative Gastric Ileus
Current Pharmaceutical Design Definition of Markov-Harary Invariants and Review of Classic Topological Indices and Databases in Biology, Parasitology, Technology,and Social-Legal Networks
Current Bioinformatics Up-regulated Circulating miR-106a by DNA Methylation Promised a Potential Diagnostic and Prognostic Marker for Gastric Cancer
Anti-Cancer Agents in Medicinal Chemistry