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Laure A, Royet C, Bihel F, Baratte B, Bach S, Peyressatre M, Morris MC. Ethaverine and Papaverine Target Cyclin-Dependent Kinase 5 and Inhibit Lung Cancer Cell Proliferation and Migration. ACS Pharmacol Transl Sci 2024; 7:1377-1385. [PMID: 38751642 PMCID: PMC11091981 DOI: 10.1021/acsptsci.4c00023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 04/11/2024] [Accepted: 04/15/2024] [Indexed: 05/18/2024]
Abstract
CDK5 kinase plays a central role in the regulation of neuronal functions, and its hyperactivation has been associated with neurodegenerative pathologies and more recently with several human cancers, in particular lung cancer. However, ATP-competitive inhibitors targeting CDK5 are poorly selective and suffer limitations, calling for new classes of inhibitors. In a screen for allosteric modulators of CDK5, we identified ethaverine and closely related derivative papaverine and showed that they inhibit cell proliferation and migration of non small cell lung cancer cell lines. Moreover the efficacy of these compounds is significantly enhanced when combined with the ATP-competitive inhibitor roscovitine, suggesting an additive dual mechanism of inhibition targeting CDK5. These compounds do not affect CDK5 stability, but thermodenaturation studies performed with A549 cell extracts infer that they interact with CDK5 in cellulo. Furthermore, the inhibitory potentials of ethaverine and papaverine are reduced in A549 cells treated with siRNA directed against CDK5. Taken together, our results provide unexpected and novel evidence that ethaverine and papaverine constitute promising leads that can be repurposed for targeting CDK5 in lung cancer.
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Affiliation(s)
- Arthur Laure
- Institut
des Biomolécules Max Mousseron, CNRS, UMR 5247, Université de Montpellier, 1919 Route de Mende, 34293 Montpellier, France
| | - Chloé Royet
- Institut
des Biomolécules Max Mousseron, CNRS, UMR 5247, Université de Montpellier, 1919 Route de Mende, 34293 Montpellier, France
| | - Frederic Bihel
- Laboratoire
d’Innovation Thérapeutique, IMS, UMR 7200, CNRS, Université de Strasbourg, 67401 Illkirch, France
| | - Blandine Baratte
- CNRS,
FR2424, Plateforme de criblage KISSf (Kinase Inhibitor Specialized
Screening Facility), Sorbonne Université, Station Biologique de Roscoff, 29680 Roscoff, France
- CNRS,
UMR8227, Integrative Biology of Marine Models Laboratory (LBI2M), Sorbonne Université, Station Biologique de Roscoff, 29680 Roscoff, France
| | - Stéphane Bach
- CNRS,
FR2424, Plateforme de criblage KISSf (Kinase Inhibitor Specialized
Screening Facility), Sorbonne Université, Station Biologique de Roscoff, 29680 Roscoff, France
- CNRS,
UMR8227, Integrative Biology of Marine Models Laboratory (LBI2M), Sorbonne Université, Station Biologique de Roscoff, 29680 Roscoff, France
- Centre
of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa
| | - Marion Peyressatre
- Institut
des Biomolécules Max Mousseron, CNRS, UMR 5247, Université de Montpellier, 1919 Route de Mende, 34293 Montpellier, France
| | - May C. Morris
- Institut
des Biomolécules Max Mousseron, CNRS, UMR 5247, Université de Montpellier, 1919 Route de Mende, 34293 Montpellier, France
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2
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Anwar F, Al-Abbasi FA, Naqvi S, Sheikh RA, Alhayyani S, Asseri AH, Asar TO, Kumar V. Therapeutic Potential of Nanomedicine in Management of Alzheimer's Disease and Glioma. Int J Nanomedicine 2023; 18:2737-2756. [PMID: 37250469 PMCID: PMC10211371 DOI: 10.2147/ijn.s405454] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 04/28/2023] [Indexed: 05/31/2023] Open
Abstract
Neoplasm (Glioblastoma) and Alzheimer's disease (AD) comprise two of the most chronic psychological ailments. Glioblastoma is one of the aggressive and prevalent malignant diseases characterized by rapid growth and invasion resulting from cell migration and degradation of extracellular matrix. While the latter is characterized by extracellular plaques of amyloid and intracellular tangles of tau proteins. Both possess a high degree of resistance to treatment owing to the restricted transport of corresponding drugs to the brain protected by the blood-brain barrier (BBB). Development of optimized therapies using advanced technologies is a great need of today. One such approach is the designing of nanoparticles (NPs) to facilitate the drug delivery at the target site. The present article elaborates the advances in nanomedicines in treatment of both AD as well as Gliomas. The intention of this review is to provide an overview of different types of NPs with their physical properties emphasizing their importance in traversing the BBB and hitting the target site. Further, we discuss the therapeutic applications of these NPs along with their specific targets. Multiple overlapping factors with a common pathway in development of AD and Glioblastoma are discussed in details that will assist the readers in developing the conceptual approach to target the NP for an aging population in the given circumstances with limitations of currently designed NPs, and the challenges to meet and the future perspectives.
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Affiliation(s)
- Firoz Anwar
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Fahad A Al-Abbasi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Salma Naqvi
- Department of Biomedical Sciences, College of Medicine, Gulf Medical University, Ajman, United Arab Emirates
| | - Ryan Adnan Sheikh
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sultan Alhayyani
- Department of Chemistry, College of Sciences & Arts, Rabigh King Abdulaziz University, Jeddah, Saudi Arabia
| | - Amer H Asseri
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Turky Omar Asar
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Vikas Kumar
- Natural Product Discovery Laboratory, Department of Pharmaceutical Sciences, Shalom Institute of Health and Allied Sciences, SHUATS, Prayagraj, India
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Tai J, Wang L, Chan WS, Cheng J, Chan YH, Lee MM, Chan MK. Pyrrolysine-Inspired in Cellulo Synthesis of an Unnatural Amino Acid for Facile Macrocyclization of Proteins. J Am Chem Soc 2023; 145:10249-10258. [PMID: 37125745 PMCID: PMC10176472 DOI: 10.1021/jacs.3c01291] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Macrocyclization has been touted as an effective strategy to enhance the in vivo stability and efficacy of protein therapeutics. Herein, we describe a scalable and robust system based on the endogenous biosynthesis of a noncanonical amino acid coupled to the pyrrolysine translational machinery for the generation of lasso-grafted proteins. The in cellulo biosynthesis of the noncanonical amino acid d-Cys-ε-Lys was achieved by hijacking the pyrrolysine biosynthesis pathway, and then, its genetical incorporation into proteins was performed using an optimized PylRS/tRNAPyl pair and cell line. This system was then applied to the structurally inspired cyclization of a 23-mer therapeutic P16 peptide engrafted on a fusion protein, resulting in near-complete cyclization of the target cyclic subunit in under 3 h. The resulting cyclic P16 peptide fusion protein possessed much higher CDK4 binding affinity than its linear counterpart. Furthermore, a bifunctional bicyclic protein harboring a cyclic cancer cell targeting RGD motif on the one end and the cyclic P16 peptide on the other is produced and shown to be a potent cell cycle arrestor with improved serum stability.
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Affiliation(s)
- Jingxuan Tai
- School of Life Sciences and Center of Novel Biomaterials, The Chinese University of Hong Kong, Hong Kong SAR 999077, China
| | - Lin Wang
- School of Life Sciences and Center of Novel Biomaterials, The Chinese University of Hong Kong, Hong Kong SAR 999077, China
| | - Wai Shan Chan
- School of Life Sciences and Center of Novel Biomaterials, The Chinese University of Hong Kong, Hong Kong SAR 999077, China
| | - Jiahui Cheng
- School of Life Sciences and Center of Novel Biomaterials, The Chinese University of Hong Kong, Hong Kong SAR 999077, China
| | - Yuk Hei Chan
- School of Life Sciences and Center of Novel Biomaterials, The Chinese University of Hong Kong, Hong Kong SAR 999077, China
| | - Marianne M Lee
- School of Life Sciences and Center of Novel Biomaterials, The Chinese University of Hong Kong, Hong Kong SAR 999077, China
| | - Michael K Chan
- School of Life Sciences and Center of Novel Biomaterials, The Chinese University of Hong Kong, Hong Kong SAR 999077, China
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4
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Klein M. Targeting Protein-Protein Interactions to Inhibit Cyclin-Dependent Kinases. Pharmaceuticals (Basel) 2023; 16:ph16040519. [PMID: 37111276 PMCID: PMC10144709 DOI: 10.3390/ph16040519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 03/24/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
Cyclin-dependent kinases (CDKs) play diverse and critical roles in normal cells and may be exploited as targets in cancer therapeutic strategies. CDK4 inhibitors are currently approved for treatment in advanced breast cancer. This success has led to continued pursuit of targeting other CDKs. One challenge has been in the development of inhibitors that are highly selective for individual CDKs as the ATP-binding site is highly conserved across this family of proteins. Protein-protein interactions (PPI) tend to have less conservation amongst different proteins, even within protein families, making targeting PPI an attractive approach to improving drug selectivity. However, PPI can be challenging to target due to structural and physicochemical features of these interactions. A review of the literature specific to studies focused on targeting PPI involving CDKs 2, 4, 5, and 9 was conducted and is presented here. Promising lead molecules to target select CDKs have been discovered. None of the lead molecules discovered have led to FDA approval; however, the studies covered in this review lay the foundation for further discovery and develop of PPI inhibitors for CDKs.
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Affiliation(s)
- Mark Klein
- Hematology/Oncology Section, Primary Care Service Line, Minneapolis VA Healthcare System, Minneapolis, MN 55417, USA
- Division of Hematology, Oncology and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, MN 55455, USA
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Hunting for Novel Routes in Anticancer Drug Discovery: Peptides against Sam-Sam Interactions. Int J Mol Sci 2022; 23:ijms231810397. [PMID: 36142306 PMCID: PMC9499636 DOI: 10.3390/ijms231810397] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/02/2022] [Accepted: 09/02/2022] [Indexed: 01/10/2023] Open
Abstract
Among the diverse protein binding modules, Sam (Sterile alpha motif) domains attract attention due to their versatility. They are present in different organisms and play many functions in physiological and pathological processes by binding multiple partners. The EphA2 receptor contains a Sam domain at the C-terminus (EphA2-Sam) that is able to engage protein regulators of receptor stability (including the lipid phosphatase Ship2 and the adaptor Odin). Ship2 and Odin are recruited by EphA2-Sam through heterotypic Sam-Sam interactions. Ship2 decreases EphA2 endocytosis and consequent degradation, producing chiefly pro-oncogenic outcomes in a cellular milieu. Odin, through its Sam domains, contributes to receptor stability by possibly interfering with ubiquitination. As EphA2 is upregulated in many types of tumors, peptide inhibitors of Sam-Sam interactions by hindering receptor stability could function as anticancer therapeutics. This review describes EphA2-Sam and its interactome from a structural and functional perspective. The diverse design strategies that have thus far been employed to obtain peptides targeting EphA2-mediated Sam-Sam interactions are summarized as well. The generated peptides represent good initial lead compounds, but surely many efforts need to be devoted in the close future to improve interaction affinities towards Sam domains and consequently validate their anticancer properties.
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Chong W, Zhu X, Ren H, Ye C, Xu K, Wang Z, Jia S, Shang L, Li L, Chen H. Integrated multi-omics characterization of KRAS mutant colorectal cancer. Am J Cancer Res 2022; 12:5138-5154. [PMID: 35836817 PMCID: PMC9274732 DOI: 10.7150/thno.73089] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 06/15/2022] [Indexed: 01/12/2023] Open
Abstract
KRAS mutation is the most frequent oncogenic aberration in colorectal cancer (CRC). The molecular mechanism and clinical implications of KRAS mutation in CRC remain unclear and show high heterogeneity within these tumors. Methods: We harnessed the multi-omics data (genomic, transcriptomic, proteomic, and phosphoproteomic etc.) of KRAS-mutant CRC tumors and performed unsupervised clustering to identify proteomics-based subgroups and molecular characterization. Results: In-depth analysis of the tumor microenvironment by single-cell transcriptomic revealed the cellular landscape of KRAS-mutant CRC tumors and identified the specific cell subsets with KRAS mutation. Integrated multi-omics analyses separated the KRAS-mutant tumors into two distinct molecular subtypes, termed KRAS-M1 (KM1) and KRAS-M2 (KM2). The two subtypes had a similar distribution of mutated residues in KRAS (G12D/V/C etc.) but were characterized by distinct features in terms of prognosis, genetic alterations, microenvironment dysregulation, biological phenotype, and potential therapeutic approaches. Proteogenomic analyses revealed that the EMT, TGF-β and angiogenesis pathways were enriched in the KM2 subtype and that the KM2 subtype was associated with the mesenchymal phenotype-related CMS4 subtype, which indicated stromal invasion and worse prognosis. The KM1 subtype was characterized predominantly by activation of the cell cycle, E2F and RNA transcription and was associated with the chromosomal instability (CIN)-related ProS-E proteomic subtype, which suggested cyclin-dependent features and better survival outcomes. Moreover, drug sensitivity analyses based on three compound databases revealed subgroup-specific agents for KM1 and KM2 tumors. Conclusions: This study clarifies the molecular heterogeneity of KRAS-mutant CRC and reveals new biological subtypes and therapeutic possibilities for these tumors.
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Affiliation(s)
- Wei Chong
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Engineering of Shandong Province, Shandong Provincial Hospital, Jinan, China.,Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Xingyu Zhu
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Engineering of Shandong Province, Shandong Provincial Hospital, Jinan, China.,Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Huicheng Ren
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Engineering of Shandong Province, Shandong Provincial Hospital, Jinan, China.,Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Chunshui Ye
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Engineering of Shandong Province, Shandong Provincial Hospital, Jinan, China.,Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Kang Xu
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Engineering of Shandong Province, Shandong Provincial Hospital, Jinan, China.,Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Zhe Wang
- Department of Tumor Cell Biology, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Shengtao Jia
- Department of Tumor Cell Biology, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Liang Shang
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Engineering of Shandong Province, Shandong Provincial Hospital, Jinan, China.,Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Leping Li
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.,Department of Gastrointestinal Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Engineering of Shandong Province, Shandong Provincial Hospital, Jinan, China.,Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China.,✉ Corresponding authors: Dr. Hao Chen, Ph.D, Clinical Research Center of Shandong University, Unit of Clinical Epidemiology, Qilu Hospital of Shandong University, Jinan, Shandong 250021, P.R. China. E-mail: , . Prof. Leping Li, Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China. E-mail:
| | - Hao Chen
- Clinical Research Center of Shandong University, Clinical Epidemiology Unit, Qilu Hospital of Shandong University, Jinan, Shandong, 250021, China.,✉ Corresponding authors: Dr. Hao Chen, Ph.D, Clinical Research Center of Shandong University, Unit of Clinical Epidemiology, Qilu Hospital of Shandong University, Jinan, Shandong 250021, P.R. China. E-mail: , . Prof. Leping Li, Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China. E-mail:
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Josserand V, Bernard C, Michy T, Guidetti M, Vollaire J, Coll JL, Hurbin A. Tumor-Specific Imaging with Angiostamp800 or Bevacizumab-IRDye 800CW Improves Fluorescence-Guided Surgery over Indocyanine Green in Peritoneal Carcinomatosis. Biomedicines 2022; 10:biomedicines10051059. [PMID: 35625796 PMCID: PMC9138305 DOI: 10.3390/biomedicines10051059] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 11/16/2022] Open
Abstract
Complete surgical removal of lesions improves survival of peritoneal carcinomatosis and can be enhanced by intraoperative near-infrared fluorescence imaging. Indocyanine green (ICG) is the only near-infrared fluorescent dye approved for clinical use, but it lacks specificity for tumor cells, highlighting the need for tumor-selective targeting agents. We compared the tumor-specific near-infrared fluorescent probes Bevacizumab-IRDye 800CW and Angiostamp800, which target tumor angiogenesis and cancer cells, to ICG for fluorescence-guided surgery in peritoneal carcinomatosis of ovarian origin. The probes were administered to mice with orthotopic peritoneal carcinomatosis prior to conventional and fluorescence-guided surgery. The influence of neoadjuvant chemotherapy was also assessed. Conventional surgery removed 88.0 ± 1.2% of the total tumor load in mice. Fluorescence-guided surgery allowed the resection of additional nodules, enhancing the total tumor burden resection by 9.8 ± 0.7%, 8.5 ± 0.8%, and 3.9 ± 1.2% with Angiostamp800, Bevacizumab-IRDye 800CW and ICG, respectively. Interestingly, among the resected nodules, 15% were false-positive with ICG, compared to only 1.4% with Angiostamp800 and 3.5% with Bevacizumab-IRDye 800CW. Furthermore, conventional surgery removed only 69.0 ± 3.9% of the total tumor burden after neoadjuvant chemotherapy. Fluorescence-guided surgery with Angiostamp800 and Bevacizumab-IRDye 800CW increased the total tumor burden resection to 88.7 ± 4.3%, whereas ICG did not improve surgery at all. Bevacizumab-IRDye 800CW and Angiostamp800 better detect ovarian tumors and metastases than the clinically used fluorescent tracer ICG, and can help surgeons completely remove tumors, especially after surgery neoadjuvant chemotherapy.
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Affiliation(s)
- Véronique Josserand
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale INSERM U1209, Centre National de la Recherche Scientifique CNRS UMR5309, Université Grenoble Alpes, F-38000 Grenoble, France; (V.J.); (C.B.); (T.M.); (M.G.); (J.V.); (J.-L.C.)
| | - Claire Bernard
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale INSERM U1209, Centre National de la Recherche Scientifique CNRS UMR5309, Université Grenoble Alpes, F-38000 Grenoble, France; (V.J.); (C.B.); (T.M.); (M.G.); (J.V.); (J.-L.C.)
- Centre Hospitalier Universitaire Grenoble Alpes, Université Grenoble Alpes, F-38000 Grenoble, France
| | - Thierry Michy
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale INSERM U1209, Centre National de la Recherche Scientifique CNRS UMR5309, Université Grenoble Alpes, F-38000 Grenoble, France; (V.J.); (C.B.); (T.M.); (M.G.); (J.V.); (J.-L.C.)
- Centre Hospitalier Universitaire Grenoble Alpes, Université Grenoble Alpes, F-38000 Grenoble, France
| | - Mélanie Guidetti
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale INSERM U1209, Centre National de la Recherche Scientifique CNRS UMR5309, Université Grenoble Alpes, F-38000 Grenoble, France; (V.J.); (C.B.); (T.M.); (M.G.); (J.V.); (J.-L.C.)
| | - Julien Vollaire
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale INSERM U1209, Centre National de la Recherche Scientifique CNRS UMR5309, Université Grenoble Alpes, F-38000 Grenoble, France; (V.J.); (C.B.); (T.M.); (M.G.); (J.V.); (J.-L.C.)
| | - Jean-Luc Coll
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale INSERM U1209, Centre National de la Recherche Scientifique CNRS UMR5309, Université Grenoble Alpes, F-38000 Grenoble, France; (V.J.); (C.B.); (T.M.); (M.G.); (J.V.); (J.-L.C.)
| | - Amandine Hurbin
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale INSERM U1209, Centre National de la Recherche Scientifique CNRS UMR5309, Université Grenoble Alpes, F-38000 Grenoble, France; (V.J.); (C.B.); (T.M.); (M.G.); (J.V.); (J.-L.C.)
- Correspondence:
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8
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Ettl T, Schulz D, Bauer RJ. The Renaissance of Cyclin Dependent Kinase Inhibitors. Cancers (Basel) 2022; 14:293. [PMID: 35053461 PMCID: PMC8773807 DOI: 10.3390/cancers14020293] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/29/2021] [Accepted: 01/04/2022] [Indexed: 12/14/2022] Open
Abstract
Cyclin-dependent kinases (CDK) regulate cell cycle progression. During tumor development, altered expression and availability of CDKs strongly contribute to impaired cell proliferation, a hallmark of cancer. In recent years, targeted inhibition of CDKs has shown considerable therapeutic benefit in a variety of tumor entities. Their success is reflected in clinical approvals of specific CDK4/6 inhibitors for breast cancer. This review provides a detailed insight into the molecular mechanisms of CDKs as well as a general overview of CDK inhibition. It also summarizes the latest research approaches and current advances in the treatment of head and neck cancer with CDK inhibitors. Instead of monotherapies, combination therapies with CDK inhibitors may especially provide promising results in tumor therapy. Indeed, recent studies have shown a synergistic effect of CDK inhibition together with chemo- and radio- and immunotherapy in cancer treatment to overcome tumor evasion, which may lead to a renaissance of CDK inhibitors.
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Affiliation(s)
- Tobias Ettl
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany;
| | - Daniela Schulz
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany;
- Center for Medical Biotechnology, Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Richard Josef Bauer
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany;
- Center for Medical Biotechnology, Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany
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9
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Xu C, Ge S, Cheng J, Gao H, Zhang F, Han A. Pathological and Prognostic Characterization of Craniopharyngioma Based on the Expression of TrkA, β-Catenin, Cell Cycle Markers, and BRAF V600E Mutation. Front Endocrinol (Lausanne) 2022; 13:859381. [PMID: 35707464 PMCID: PMC9190302 DOI: 10.3389/fendo.2022.859381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 04/20/2022] [Indexed: 12/01/2022] Open
Abstract
We collected 61 craniopharyngioma (CP) specimens to investigate the expression of TrkA, β-catenin, BRAF gene mutation, and NTRK1 fusion in CP. There were 37 male and 24 female individuals with a median age of 34 years (range, 4-75 years). Histologically, there were 46 cases of adamantinomatous craniopharyngioma (ACP), 14 cases of papillary craniopharyngioma (PCP), and 1 case with a mixed adamantinomatous and papillary pattern. By immunohistochemistry, we found that moderate/high TrkA expression was detected in 47% (28/60) CP and was significantly higher in adult patients (p = 0.018). Interestingly, TrkA is more expressed in "whorled epithelium" cells in ACP, similar to the localization of abnormal β-catenin. The abnormal expression rate of β-catenin was 70% (43/61), and the medium/high cyclin D1 expression rate was 73% (44/60), both of which were significantly higher in ACP than in PCP. Of the CP, 41% (21/51) had a moderate/strong P16-positive signal; 58% (34/59) showed a high Ki-67 expression, and there was a significant correlation between high Ki-67 L.I. and high tumor recurrence (p = 0.021). NTRK1 fusion was not found in CP by fluorescence in situ hybridization (FISH). By PCR, 26% (15/58) CP showed BRAF V600E gene mutation, which mainly occurred in PCP (100%, 14/14) except one case of mixed CP. Moreover, TrkA expression was negatively correlated with Ki-67 index and positively correlated with P16 expression. There was a significantly negative correlation between BRAF V600E mutation and abnormal β-catenin expression. Our results demonstrate for the first time that TrkA expression might occur in CP, especially in adult CP patients, and suggest that cyclin D1 could be used for ACP histological classification in addition to β-catenin and BRAF V600E mutation, while Ki-67 could be used as a marker to predict CP recurrence.
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10
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Xia M, Cao H, Zheng J, Yao Y, Xu F, Lu G, Ma Y, Zhou J. A novel stilbene derivative (GMQ3) suppressed proliferation and induced apoptosis in lung cancer via the p38-MAPK/SIRT1 pathway. Biochem Pharmacol 2021; 193:114808. [PMID: 34678220 DOI: 10.1016/j.bcp.2021.114808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 12/09/2022]
Abstract
BACKGROUND Lung cancer is the primary cause of cancer-related mortality worldwide. The anticancer effect of stilbene has been noted in various tumor types. GMQ3, which has a stilbene-mimicking skeleton, is a novel small-molecule compound with promising antitumor activity. Our results revealed that GMQ3 not only suppressed cell proliferation and cell migration of lung cancer cells but also led to G1 phase cell cycle arrest and triggered caspase-dependent apoptosis. Furthermore, investigation of the molecular mechanism showed that GMQ3 could inhibited proliferation and induced apoptosis via the p38-MAPK/SIRT1 pathway both in vitro and in vivo. Xenograft tumor mouse models showed that GMQ3 significantly inhibited tumor growth in vivo without affecting body weight. Our findings indicated that GMQ3 exerts a strong anticancer action by suppressing cell proliferation, inhibiting cell migration and inducing cell apoptosis. Moreover, the efficacy of GMQ3 was enhanced in the presence of CDK4/6 inhibitor Abemaciclib. We conclude that GMQ3 is a promising agent with potential for lung cancer.
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Affiliation(s)
- Mengling Xia
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - He Cao
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jing Zheng
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yinan Yao
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Fei Xu
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Guohua Lu
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yongmin Ma
- Institute of Advanced Studies and School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou, China.
| | - Jianying Zhou
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.
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11
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Padhye A, Konen JM, Rodriguez BL, Fradette JJ, Ochieng JK, Diao L, Wang J, Lu W, Solis LS, Batra H, Raso MG, Peoples MD, Minelli R, Carugo A, Bristow CA, Gibbons DL. Targeting CDK4 overcomes EMT-mediated tumor heterogeneity and therapeutic resistance in KRAS mutant lung cancer. JCI Insight 2021; 6:e148392. [PMID: 34309585 PMCID: PMC8492319 DOI: 10.1172/jci.insight.148392] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 07/21/2021] [Indexed: 12/14/2022] Open
Abstract
Lack of sustained response to therapeutic agents in patients with KRAS-mutant lung cancer poses a major challenge and arises partly due to intratumor heterogeneity that defines phenotypically distinct tumor subpopulations. To attain better therapeutic outcomes, it is important to understand the differential therapeutic sensitivities of tumor cell subsets. Epithelial-mesenchymal transition is a biological phenomenon that can alter the state of cells along a phenotypic spectrum and cause transcriptional rewiring to produce distinct tumor cell subpopulations. We utilized functional shRNA screens, in in vitro and in vivo models, to identify and validate an increased dependence of mesenchymal tumor cells on cyclin-dependent kinase 4 (CDK4) for survival, as well as a mechanism of resistance to MEK inhibitors. High zinc finger E-box binding homeobox 1 levels in mesenchymal tumor cells repressed p21, leading to perturbed CDK4 pathway activity. Increased dependence on CDK4 rendered mesenchymal cancer cells particularly vulnerable to selective CDK4 inhibitors. Coadministration of CDK4 and MEK inhibitors in heterogeneous tumors effectively targeted different tumor subpopulations, subverting the resistance to either single-agent treatment.
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Affiliation(s)
- Aparna Padhye
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Jessica M Konen
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - B Leticia Rodriguez
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Jared J Fradette
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Joshua K Ochieng
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Lixia Diao
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Jing Wang
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Wei Lu
- Department of Translational Molecular Pathology, University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Luisa S Solis
- Department of Translational Molecular Pathology, University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Harsh Batra
- Department of Translational Molecular Pathology, University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Maria G Raso
- Department of Translational Molecular Pathology, University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Michael D Peoples
- TRACTION Platform, Division of Therapeutics Development, University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Rosalba Minelli
- TRACTION Platform, Division of Therapeutics Development, University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Alessandro Carugo
- TRACTION Platform, Division of Therapeutics Development, University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Christopher A Bristow
- TRACTION Platform, Division of Therapeutics Development, University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Don L Gibbons
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, United States of America
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12
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Ma YS, Liu JB, Yang XL, Xin R, Shi Y, Zhang DD, Wang HM, Wang PY, Lin QL, Li W, Fu D. Basic approaches, challenges and opportunities for the discovery of small molecule anti-tumor drugs. Am J Cancer Res 2021; 11:2386-2400. [PMID: 34249406 PMCID: PMC8263657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 05/15/2021] [Indexed: 06/13/2023] Open
Abstract
Chemotherapy is one of the main treatments for cancer, especially for advanced cancer patients. In the past decade, significant progress has been made with the research into the molecular mechanisms of cancer cells and the precision medicine. The treatment on cancer patients has gradually changed from cytotoxic chemotherapy to precise treatment strategy. Research into anticancer drugs has also changed from killing effects on all cells to targeting drugs for target genes. Besides, researchers have developed the understanding of the abnormal physiological function, related genomics, epigenetics, and proteomics of cancer cells with cancer genome sequencing, epigenetic research, and proteomic research. These technologies and related research have accelerated the development of related cancer drugs. In this review, we summarize the research progress of anticancer drugs, the current challenges, and future opportunities.
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Affiliation(s)
- Yu-Shui Ma
- National Engineering Laboratory for Deep Process of Rice and Byproducts, College of Food Science and Engineering, Central South University of Forestry and TechnologyChangsha 410004, Hunan, China
- Cancer Institute, Nantong Tumor HospitalNantong 226631, China
- Central Laboratory for Medical Research, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai 200072, China
| | - Ji-Bin Liu
- Cancer Institute, Nantong Tumor HospitalNantong 226631, China
| | - Xiao-Li Yang
- Central Laboratory for Medical Research, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai 200072, China
| | - Rui Xin
- Central Laboratory for Medical Research, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai 200072, China
| | - Yi Shi
- National Engineering Laboratory for Deep Process of Rice and Byproducts, College of Food Science and Engineering, Central South University of Forestry and TechnologyChangsha 410004, Hunan, China
- Cancer Institute, Nantong Tumor HospitalNantong 226631, China
| | - Dan-Dan Zhang
- Central Laboratory for Medical Research, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai 200072, China
| | - Hui-Min Wang
- Central Laboratory for Medical Research, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai 200072, China
| | - Pei-Yao Wang
- Central Laboratory for Medical Research, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai 200072, China
| | - Qin-Lu Lin
- National Engineering Laboratory for Deep Process of Rice and Byproducts, College of Food Science and Engineering, Central South University of Forestry and TechnologyChangsha 410004, Hunan, China
| | - Wen Li
- National Engineering Laboratory for Deep Process of Rice and Byproducts, College of Food Science and Engineering, Central South University of Forestry and TechnologyChangsha 410004, Hunan, China
| | - Da Fu
- National Engineering Laboratory for Deep Process of Rice and Byproducts, College of Food Science and Engineering, Central South University of Forestry and TechnologyChangsha 410004, Hunan, China
- Central Laboratory for Medical Research, Shanghai Tenth People’s Hospital, Tongji University School of MedicineShanghai 200072, China
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13
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Zhang JJ, Hong J, Ma YS, Shi Y, Zhang DD, Yang XL, Jia CY, Yin YZ, Jiang GX, Fu D, Yu F. Identified GNGT1 and NMU as Combined Diagnosis Biomarker of Non-Small-Cell Lung Cancer Utilizing Bioinformatics and Logistic Regression. DISEASE MARKERS 2021; 2021:6696198. [PMID: 33505535 PMCID: PMC7806402 DOI: 10.1155/2021/6696198] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/01/2020] [Accepted: 12/18/2020] [Indexed: 12/11/2022]
Abstract
Non-small-cell lung cancer (NSCLC) is one of the most devastating diseases worldwide. The study is aimed at identifying reliable prognostic biomarkers and to improve understanding of cancer initiation and progression mechanisms. RNA-Seq data were downloaded from The Cancer Genome Atlas (TCGA) database. Subsequently, comprehensive bioinformatics analysis incorporating gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and the protein-protein interaction (PPI) network was conducted to identify differentially expressed genes (DEGs) closely associated with NSCLC. Eight hub genes were screened out using Molecular Complex Detection (MCODE) and cytoHubba. The prognostic and diagnostic values of the hub genes were further confirmed by survival analysis and receiver operating characteristic (ROC) curve analysis. Hub genes were validated by other datasets, such as the Oncomine, Human Protein Atlas, and cBioPortal databases. Ultimately, logistic regression analysis was conducted to evaluate the diagnostic potential of the two identified biomarkers. Screening removed 1,411 DEGs, including 1,362 upregulated and 49 downregulated genes. Pathway enrichment analysis of the DEGs examined the Ras signaling pathway, alcoholism, and other factors. Ultimately, eight prioritized genes (GNGT1, GNG4, NMU, GCG, TAC1, GAST, GCGR1, and NPSR1) were identified as hub genes. High hub gene expression was significantly associated with worse overall survival in patients with NSCLC. The ROC curves showed that these hub genes had diagnostic value. The mRNA expressions of GNGT1 and NMU were low in the Oncomine database. Their protein expressions and genetic alterations were also revealed. Finally, logistic regression analysis indicated that combining the two biomarkers substantially improved the ability to discriminate NSCLC. GNGT1 and NMU identified in the current study may empower further discovery of the molecular mechanisms underlying NSCLC's initiation and progression.
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Affiliation(s)
- Jia-Jia Zhang
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Jiang Hong
- Department of Thoracic Surgery, Navy Military Medical University Affiliated Changhai Hospital, Shanghai 200433, China
| | - Yu-Shui Ma
- Department of Pancreatic and Hepatobiliary Surgery, Cancer Hospital, Fudan University Shanghai Cancer Center, Shanghai 200032, China
- Central Laboratory for Medical Research, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yi Shi
- Central Laboratory for Medical Research, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Dan-Dan Zhang
- Central Laboratory for Medical Research, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Xiao-Li Yang
- Central Laboratory for Medical Research, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Cheng-You Jia
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yu-Zhen Yin
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Geng-Xi Jiang
- Department of Thoracic Surgery, Navy Military Medical University Affiliated Changhai Hospital, Shanghai 200433, China
| | - Da Fu
- Central Laboratory for Medical Research, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Fei Yu
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
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14
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Hydrocarbon-Stapled Peptide Based-Nanoparticles for siRNA Delivery. NANOMATERIALS 2020; 10:nano10122334. [PMID: 33255624 PMCID: PMC7760004 DOI: 10.3390/nano10122334] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/09/2020] [Accepted: 11/21/2020] [Indexed: 01/22/2023]
Abstract
Small interfering RNAs (siRNAs) are promising molecules for developing new therapies based on gene silencing; however, their delivery into cells remains an issue. In this study, we took advantage of stapled peptide technology that has emerged as a valuable strategy to render natural peptides more structured, resistant to protease degradation and more bioavailable, to develop short carriers for siRNA delivery. From the pool of stapled peptides that we have designed and synthesized, we identified non-toxic vectors that were able to efficiently encapsulate siRNA, transport them into the cell and induce gene silencing. Remarkably, the most efficient stapled peptide (JMV6582), is composed of only eight amino-acids and contains only two cationic charges.
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15
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Gao Q, Ouyang W, Kang B, Han X, Xiong Y, Ding R, Li Y, Wang F, Huang L, Chen L, Wang D, Dong X, Zhang Z, Li Y, Ze B, Hou Y, Yang H, Ma Y, Gu Y, Chao CC. Selective targeting of the oncogenic KRAS G12S mutant allele by CRISPR/Cas9 induces efficient tumor regression. Am J Cancer Res 2020; 10:5137-5153. [PMID: 32308773 PMCID: PMC7163449 DOI: 10.7150/thno.42325] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 03/13/2020] [Indexed: 12/12/2022] Open
Abstract
Rationale: KRAS is one of the most frequently mutated oncogenes in cancers. The protein's picomolar affinity for GTP/GDP and smooth protein structure resulting in the absence of known allosteric regulatory sites makes its genomic-level activating mutations a difficult but attractive target. Methods: Two CRISPR systems, genome-editing CRISPR/SpCas9 and transcription-regulating dCas9-KRAB, were developed to deplete the KRAS G12S mutant allele or repress its transcription, respectively, with the goal of treating KRAS-driven cancers. Results: SpCas9 and dCas9-KRAB systems with a sgRNA targeting the mutant allele blocked the expression of the mutant KRAS gene, leading to an inhibition of cancer cell proliferation. Local adenoviral injections using SpCas9 and dCas9-KRAB systems suppressed tumor growth in vivo. The gene-depletion system (SpCas9) performed more effectively than the transcription-suppressing system (dCas9-KRAB) on tumor inhibition. Application of both Cas9 systems to wild-type KRAS tumors did not affect cell proliferation. Furthermore, through bioinformatic analysis of 31555 SNP mutations of the top 20 cancer driver genes, the data showed that our mutant-specific editing strategy could be extended to a reference list of oncogenic mutations with high editing potentials. This pipeline could be applied to analyze the distribution of PAM sequences and survey the best alternative targets for gene editing. Conclusion: We successfully developed both gene-depletion and transcription-suppressing systems to specifically target an oncogenic KRAS mutant allele that led to significant tumor regression. These findings show the potential of CRISPR-based strategies for the treatment of tumors with driver gene mutations.
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