ArticleEBioMedicine2019
Cyclin-dependent kinase 9 (CDK9) is a novel prognostic marker and therapeutic target in osteosarcoma.
Article in EBioMedicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.
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Who cites it
60 citing papers in PubMed, 96 citations in OpenAlex.
- Phase I/II Study of the CDK2/9 Inhibitor Fadraciclib in Combination with Chemotherapy in Children with Advanced Malignancies: Arm K of the AcSé-ESMART Trial.Targeted oncology · 2026Trial
- Berberine Chloride Suppresses Growth of Canine Osteosarcoma Cells via Regulating MMP2/AKT/β-Catenin Pathway.Antioxidants (Basel, Switzerland) · 2026Article
- Understanding and Overcoming Osteosarcoma Heterogeneity.Biomolecules · 2026Review
- Inhibition of CDK9 sensitizes multidrug resistant ovarian cancer cells to paclitaxel.Scientific reports · 2026Article
- The roles of cell cycle proteins in regulating the tumor immune microenvironment.Genes & diseases · 2026Review
- Targeting CDK9-dependent transcriptional addiction: a novel chemoprevention strategy for oral carcinogenesis via adenosine deaminase modulation.Cell death & disease · 2025Article
- Design, Synthesis, and Biological Evaluation of Sulfonamide Derivatives as Potent CDK9 Inhibitors.ACS medicinal chemistry letters · 2025Article
- Mechanistic Roles of Transcriptional Cyclin-Dependent Kinases in Oncogenesis: Implications for Cancer Therapy.Cancers · 2025Review
- Cooperative blockade of FLT3 and ALK synergistically suppresses growth of osteosarcoma.Oncogene · 2025Article
- Cyclin-dependent protein kinases and cell cycle regulation in biology and disease.Signal transduction and targeted therapy · 2025Review
- Osteosarcoma cells depend on MCL-1 for survival, and osteosarcoma metastases respond to MCL-1 antagonism plus regorafenib in vivo.BMC cancer · 2024Article
- CDK9 inhibitors for the treatment of solid tumors.Biochemical pharmacology · 2024Review
- An interpretable artificial intelligence framework for designing synthetic lethality-based anti-cancer combination therapies.Journal of advanced research · 2024Article
- MTF2 facilitates the advancement of osteosarcoma through mediating EZH2/SFRP1/Wnt signaling.Journal of orthopaedic surgery and research · 2024Article
- Expression of cyclin-dependent kinase 9 is positively correlated with the autophagy level in colon cancer.World journal of gastrointestinal oncology · 2024Article
- Downregulation of PRKCI inhibits osteosarcoma cell growth by inactivating the Akt/mTOR signaling pathway.Frontiers in oncology · 2024Article
- Targeting CDK9 with selective inhibitors or degraders in tumor therapy: an overview of recent developments.Cancer biology & therapy · 2023Review
- Article
- The novel CDK9 inhibitor, XPW1, alone and in combination with BRD4 inhibitor JQ1, for the treatment of clear cell renal cell carcinoma.British journal of cancer · 2023Article
- Expression of pyroptosis-related genes are correlated with immune microenvironment and predict prognosis in ESCA.Journal of cancer research and clinical oncology · 2023Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundCyclin-dependent protein kinase 9 (CDK9) has been shown to play an important role in the pathogenesis of malignant tumors. However, the expression and function of CDK9 remain unknown in osteosarcomas. The purpose of this study is to assess the expression, function and clinical prognostic relationship of CDK9 in osteosarcomas.
methodsA tissue microarray of 70 patient specimens was analyzed by immunohistochemistry to measure CDK9 expression, which was further investigated for correlation with patient clinical characteristics. CDK9 expression in osteosarcoma cell lines and patient tissues was also evaluated by Western blotting. CDK9-specific siRNA and the CDK9 inhibitor were applied to determine the effect of CDK9 inhibition on osteosarcoma cell proliferation and anti-apoptotic activity. The clonogenicity and migration activity were also examined using clonogenic and wound healing assays. A 3D cell culture model was performed to mimic the in vivo osteosarcoma environment to further validate the effect of CDK9 inhibition on osteosarcoma cells.
findingsWe demonstrated that higher CDK9-expression is associated with significantly shortened patient survival by immunohistochemistry. Expression of CDK9 is inversely correlated to the percent of tumor necrosis post-neoadjuvant chemotherapy, which is the most important predictive factor of disease outcome for osteosarcoma patients. Knockdown of CDK9 with siRNA and inhibition of CDK9 activity with inhibitor decreased cell proliferation and induced apoptosis in osteosarcoma.
interpretationHigh expression of CDK9 is an independent predictor of poor prognosis in osteosarcoma patients. Our results suggest that CDK9 is a novel prognostic marker and a promising therapeutic target for osteosarcomas.
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