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Marugán C, Sanz-Gómez N, Ortigosa B, Monfort-Vengut A, Bertinetti C, Teijo A, González M, Alonso de la Vega A, Lallena MJ, Moreno-Bueno G, de Cárcer G. TPX2 overexpression promotes sensitivity to dasatinib in breast cancer by activating YAP transcriptional signaling. Mol Oncol 2024. [PMID: 38357786 DOI: 10.1002/1878-0261.13602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 01/03/2024] [Accepted: 01/26/2024] [Indexed: 02/16/2024] Open
Abstract
Chromosomal instability (CIN) is a hallmark of cancer aggressiveness, providing genetic plasticity and tumor heterogeneity that allows the tumor to evolve and adapt to stress conditions. CIN is considered a cancer therapeutic biomarker because healthy cells do not exhibit CIN. Despite recent efforts to identify therapeutic strategies related to CIN, the results obtained have been very limited. CIN is characterized by a genetic signature where a collection of genes, mostly mitotic regulators, are overexpressed in CIN-positive tumors, providing aggressiveness and poor prognosis. We attempted to identify new therapeutic strategies related to CIN genes by performing a drug screen, using cells that individually express CIN-associated genes in an inducible manner. We find that the overexpression of targeting protein for Xklp2 (TPX2) enhances sensitivity to the proto-oncogene c-Src (SRC) inhibitor dasatinib due to activation of the Yes-associated protein 1 (YAP) pathway. Furthermore, using breast cancer data from The Cancer Genome Atlas (TCGA) and a cohort of cancer-derived patient samples, we find that both TPX2 overexpression and YAP activation are present in a significant percentage of cancer tumor samples and are associated with poor prognosis; therefore, they are putative biomarkers for selection for dasatinib therapy.
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Grants
- 2018-20I114 Spanish National Research Council (CSIC)
- 2021-AEP035 Spanish National Research Council (CSIC)
- 2022-20I018 Spanish National Research Council (CSIC)
- FJC2020-044620-I Ministerio de Ciencia, Innovación, Agencia Estatal de Investigación MCIN/AEI/FEDER
- PID2019-104644RB-I00 Ministerio de Ciencia, Innovación, Agencia Estatal de Investigación MCIN/AEI/FEDER
- PID2021-125705OB-I00 Ministerio de Ciencia, Innovación, Agencia Estatal de Investigación MCIN/AEI/FEDER
- PID2022-136854OB-I00 Ministerio de Ciencia, Innovación, Agencia Estatal de Investigación MCIN/AEI/FEDER
- RTI2018-095496-B-I00 Ministerio de Ciencia, Innovación, Agencia Estatal de Investigación MCIN/AEI/FEDER
- CB16/12/00295 Instituto de Salud Carlos III - CIBERONC
- LABAE16017DECA Spanish Association Against Cancer (AECC) Scientific Foundation
- POSTD234371SANZ Spanish Association Against Cancer (AECC) Scientific Foundation
- PROYE19036MOR Spanish Association Against Cancer (AECC) Scientific Foundation
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Affiliation(s)
- Carlos Marugán
- Cell Cycle & Cancer Biomarkers Laboratory, Cancer Department, Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM) CSIC-UAM, Madrid, Spain
- Discovery Chemistry Research and Technology, Eli Lilly and Company, Madrid, Spain
| | - Natalia Sanz-Gómez
- Cell Cycle & Cancer Biomarkers Laboratory, Cancer Department, Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM) CSIC-UAM, Madrid, Spain
| | - Beatriz Ortigosa
- Cell Cycle & Cancer Biomarkers Laboratory, Cancer Department, Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM) CSIC-UAM, Madrid, Spain
- Translational Cancer Research Laboratory, Cancer Department, Instituto de Investigaciones Biomédicas Alberto Sols-Morreale (IIBM) CSIC-UAM, Madrid, Spain
| | - Ana Monfort-Vengut
- Cell Cycle & Cancer Biomarkers Laboratory, Cancer Department, Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM) CSIC-UAM, Madrid, Spain
| | - Cristina Bertinetti
- Cell Cycle & Cancer Biomarkers Laboratory, Cancer Department, Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM) CSIC-UAM, Madrid, Spain
| | - Ana Teijo
- Pathology Department, MD Anderson Cancer Center, Madrid, Spain
| | - Marta González
- Cell Cycle & Cancer Biomarkers Laboratory, Cancer Department, Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM) CSIC-UAM, Madrid, Spain
| | - Alicia Alonso de la Vega
- Cell Cycle & Cancer Biomarkers Laboratory, Cancer Department, Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM) CSIC-UAM, Madrid, Spain
| | - María José Lallena
- Discovery Chemistry Research and Technology, Eli Lilly and Company, Madrid, Spain
| | - Gema Moreno-Bueno
- Translational Cancer Research Laboratory, Cancer Department, Instituto de Investigaciones Biomédicas Alberto Sols-Morreale (IIBM) CSIC-UAM, Madrid, Spain
- MD Anderson International Foundation, Madrid, Spain
- Biomedical Cancer Research Network (CIBERONC), Madrid, Spain
- CSIC Conexión-Cáncer Hub (https://conexion-cancer.csic.es)
| | - Guillermo de Cárcer
- Cell Cycle & Cancer Biomarkers Laboratory, Cancer Department, Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM) CSIC-UAM, Madrid, Spain
- CSIC Conexión-Cáncer Hub (https://conexion-cancer.csic.es)
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Torres-Guzmán R, Ganado MP, Mur Pérez C, Marugán C, Baquero C, Yang Y, Du J, de Dios A, Puig O, Lallena MJ. Abemaciclib, a CDK4 and 6 inhibitor with unique pharmacological properties for breast cancer therapy. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.15_suppl.e12506] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e12506 Background: Breast cancer is the second most common cancer worldwide. Pharmacologically targeting cyclin-dependent kinases 4 and 6 (CDK4 & 6) has proven to be a successful therapeutic approach in patients with estrogen receptor positive (ER+) breast cancer. Differences in both efficacy and toxicity among the available CDK4 & 6 inhibitors has generated interest in a biological explanation. Abemaciclib is an adenosine triphosphate-competitive, reversible, selective inhibitor of CDK4 & 6 that has shown antitumor activity as a single agent and in combination with standard endocrine therapy (ET), in hormone receptor positive (HR+) metastatic breast cancer patients including those with ET resistance, and in combination with ET in high-risk early breast cancer patients. This study examines attributes of abemaciclib and other CDK4 & 6 inhibitors. Methods: The potency of abemaciclib for CDK4 was evaluated using biochemicals and breast cancer cell-based assays. Additionally, different combinations with an anti-estrogen therapy (e.g., tamoxifen, fulvestrant) were analyzed in an in vitro palbociclib (CDK4 & 6 inhibitor)-resistant breast cancer cell model, as well as in a set of CDK4 & 6 sensitive breast cancer cell models. Using cell-free assays, high content imaging and flow cytometry approaches, a subset of markers were monitored to characterize the phenotype of sensitive cell lines in a continuous dose schedule. Results: In in vitro, cell-free assays, abemaciclib shows selectivity for CDK4 over CDK6, and in cell-based assays, abemaciclib preferentially inhibits the proliferation of cells dependent on the presence of CDK4, not CDK6. Abemaciclib inhibits cell proliferation in a wide range of breast cancer cell lines, showing activity regardless of human epidermal growth factor receptor 2 (HER2) and PI3KCA gene mutation status. Furthermore, in a cell line resistant to palbociclib, abemaciclib in combination with fulvestrant (ET) restores CDK4 & 6 sensitivity, leading to cell senescence and cell death. Finally, in human bone marrow progenitor cells, abemaciclib shows a lesser impact on myeloid maturation than other CDK4 & 6 inhibitors, palbociclib and ribociclib, allowing for continuous dosing. Conclusions: In pre-clinical experiments, abemaciclib is a potent cell growth inhibitor, inhibiting preferentially the CDK4/CyclinD1 complex, leading to cell senescence and cell death. These pre-clinical results support the differentiated safety and efficacy profile of abemaciclib observed in clinical trials.
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Affiliation(s)
- Raquel Torres-Guzmán
- Eli Lilly & Company, Translational Sciences and Quantitative/Structural Biology, Indianapolis, IN
| | | | | | | | | | | | - Jian Du
- Eli Lilly & Company, Indianapolis, IN
| | - Alfonso de Dios
- Eli Lilly & Company, Discovery Chemistry Research and Technologies, Indianapolis, IN
| | | | - Maria Jose Lallena
- Eli Lilly & Company, Translational Sciences and Quantitative/Structural Biology, Indianapolis, IN
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3
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Torres-Guzmán R, Baquero C, Ganado MP, Marugán C, Bian H, Zeng Y, Rama R, Du J, Lallena MJ. Abstract 4850: Targeting prostate cancer with the CDK4 and CDK6 inhibitor abemaciclib. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-4850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Prostate cancer (PCa) is a leading cause of cancer death in men and represents a substantial public health burden [1]. Most PCa are primarily dependent on androgen receptor (AR) activity and castration is an effective approach to treat PCa patients. Despite the recent significant treatment advances, PCa inevitably becomes androgen-independent and progresses to the castration-resistant disease state (CRPC), the deadliest form of the disease [2]. Progression of the disease to castration-resistance is often mediated by a reactivation of AR signaling pathway [3].
Upon androgen stimulation, expression of D-type cyclin is up-regulated which results in an increased cyclin-dependent kinase 4 and 6 (CDK4/6) activity and stimulation of the cell cycle. [4]; Thus, inhibition of CDK4/6 may represent an effective strategy to delay or overcome primary androgen resistance.
Abemacicilb is a CDK4 and CDK6 inhibitor with a clinical safety profile allowing continuous dosing to achieve sustained target inhibition [5]. Abemaciclib is FDA-approved for the treatment of patients with hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative metastatic breast cancer [6,7].
Methods: The anti-proliferative activity of the abemaciclib was evaluated using iodide staining in a panel of 15 PCa cell lines. In order to get new insights on abemaciclib effects, deeper in vitro analysis was carried out in LNCaP, PC-3 and 22RV1, as ADT responding and resistant PCa cell models, respectively. Cell cycle analysis was done by FACS and High Content Imaging; cellular signaling was assessed by Western blotting. Apoptosis was measured by detection of caspase 3 and Tunnel assay. 22RV1 xenograft mouse model was used to evaluate abemaciclib efficacy in vivo.
Results: Anti-proliferative activity of abemaciclib was observed across a panel of PCa cell lines, mainly in hormone receptor positive (AR+) cell lines. Overall, abemaciclib efficiently inhibited CDK4 and CDK6 which prevented the phosphorylation of Rb with the consequent effect in cell cycle and induced a G1 cell cycle arrest. Prolonged treatment promoted a marked senescence phenotype indicated by an increased b-galactosidase staining and morphological changes to result ultimately in apoptosis. In 22RV1 xenograft models, abemaciclib significantly reduced tumor growth. Taken together these data provide insights on sensitivity of PCa models to abemaciclib and its mode of action, demonstrating the potential of this drug for the treatment of prostate cancer patients.
Conclusions: Abemaciclib inhibits proliferation of AR positive prostate cancer cell lines by inducing cell cycle arrest mediated by inhibition of Rb phosphorylation. Abemaciclib is a CDK4/6 inhibitor with potential to treat prostate cancer by blocking cell proliferation leading to induction of senescence and apoptosis.
Citation Format: Raquel Torres-Guzmán, Carmen Baquero, Maria Patricia Ganado, Carlos Marugán, Huimin Bian, Yi Zeng, Ramón Rama, Jian Du, Maria José Lallena. Targeting prostate cancer with the CDK4 and CDK6 inhibitor abemaciclib [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 4850.
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Affiliation(s)
| | | | | | | | | | - Yi Zeng
- Eli Lilly, Alcobendas, Spain
| | | | - Jian Du
- Eli Lilly, Alcobendas, Spain
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Du J, Yan L, Torres R, Gong X, Bian H, Marugán C, Boehnke K, Baquero C, Hui YH, Chapman SC, Yang Y, Zeng Y, Bogner SM, Foreman RT, Capen A, Donoho GP, Van Horn RD, Barnard DS, Dempsey JA, Beckmann RP, Marshall MS, Chio LC, Qian Y, Webster YW, Aggarwal A, Chu S, Bhattachar S, Stancato LF, Dowless MS, Iversen PW, Manro JR, Walgren JL, Halstead BW, Dieter MZ, Martinez R, Bhagwat SV, Kreklau EL, Lallena MJ, Ye XS, Patel BKR, Reinhard C, Plowman GD, Barda DA, Henry JR, Buchanan SG, Campbell RM. Aurora A-Selective Inhibitor LY3295668 Leads to Dominant Mitotic Arrest, Apoptosis in Cancer Cells, and Shows Potent Preclinical Antitumor Efficacy. Mol Cancer Ther 2019; 18:2207-2219. [PMID: 31530649 DOI: 10.1158/1535-7163.mct-18-0529] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 04/29/2019] [Accepted: 09/06/2019] [Indexed: 11/16/2022]
Abstract
Although Aurora A, B, and C kinases share high sequence similarity, especially within the kinase domain, they function distinctly in cell-cycle progression. Aurora A depletion primarily leads to mitotic spindle formation defects and consequently prometaphase arrest, whereas Aurora B/C inactivation primarily induces polyploidy from cytokinesis failure. Aurora B/C inactivation phenotypes are also epistatic to those of Aurora A, such that the concomitant inactivation of Aurora A and B, or all Aurora isoforms by nonisoform-selective Aurora inhibitors, demonstrates the Aurora B/C-dominant cytokinesis failure and polyploidy phenotypes. Several Aurora inhibitors are in clinical trials for T/B-cell lymphoma, multiple myeloma, leukemia, lung, and breast cancers. Here, we describe an Aurora A-selective inhibitor, LY3295668, which potently inhibits Aurora autophosphorylation and its kinase activity in vitro and in vivo, persistently arrests cancer cells in mitosis, and induces more profound apoptosis than Aurora B or Aurora A/B dual inhibitors without Aurora B inhibition-associated cytokinesis failure and aneuploidy. LY3295668 inhibits the growth of a broad panel of cancer cell lines, including small-cell lung and breast cancer cells. It demonstrates significant efficacy in small-cell lung cancer xenograft and patient-derived tumor preclinical models as a single agent and in combination with standard-of-care agents. LY3295668, as a highly Aurora A-selective inhibitor, may represent a preferred approach to the current pan-Aurora inhibitors as a cancer therapeutic agent.
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Affiliation(s)
- Jian Du
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana.
| | - Lei Yan
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | | | - Xueqian Gong
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Huimin Bian
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | | | | | | | - Yu-Hua Hui
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | | | - Yanzhu Yang
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Yi Zeng
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Sarah M Bogner
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Robert T Foreman
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Andrew Capen
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Gregory P Donoho
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Robert D Van Horn
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Darlene S Barnard
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Jack A Dempsey
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Richard P Beckmann
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Mark S Marshall
- Ped-Hematology/Oncology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Li-Chun Chio
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Yuewei Qian
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Yue W Webster
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Amit Aggarwal
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Shaoyou Chu
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Shobha Bhattachar
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Louis F Stancato
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Michele S Dowless
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Phillip W Iversen
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Jason R Manro
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Jennie L Walgren
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Bartley W Halstead
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Matthew Z Dieter
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Ricardo Martinez
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Shripad V Bhagwat
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Emiko L Kreklau
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | | | - Xiang S Ye
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Bharvin K R Patel
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Christoph Reinhard
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Gregory D Plowman
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - David A Barda
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - James R Henry
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Sean G Buchanan
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Robert M Campbell
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
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Gong X, Du J, Parsons SH, Merzoug FF, Webster Y, Iversen PW, Chio LC, Van Horn RD, Lin X, Blosser W, Han B, Jin S, Yao S, Bian H, Ficklin C, Fan L, Kapoor A, Antonysamy S, Mc Nulty AM, Froning K, Manglicmot D, Pustilnik A, Weichert K, Wasserman SR, Dowless M, Marugán C, Baquero C, Lallena MJ, Eastman SW, Hui YH, Dieter MZ, Doman T, Chu S, Qian HR, Ye XS, Barda DA, Plowman GD, Reinhard C, Campbell RM, Henry JR, Buchanan SG. Aurora A Kinase Inhibition Is Synthetic Lethal with Loss of the RB1 Tumor Suppressor Gene. Cancer Discov 2018; 9:248-263. [PMID: 30373917 DOI: 10.1158/2159-8290.cd-18-0469] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 08/26/2018] [Accepted: 10/24/2018] [Indexed: 01/09/2023]
Abstract
Loss-of-function mutations in the retinoblastoma gene RB1 are common in several treatment-refractory cancers such as small-cell lung cancer and triple-negative breast cancer. To identify drugs synthetic lethal with RB1 mutation (RB1 mut), we tested 36 cell-cycle inhibitors using a cancer cell panel profiling approach optimized to discern cytotoxic from cytostatic effects. Inhibitors of the Aurora kinases AURKA and AURKB showed the strongest RB1 association in this assay. LY3295668, an AURKA inhibitor with over 1,000-fold selectivity versus AURKB, is distinguished by minimal toxicity to bone marrow cells at concentrations active against RB1 mut cancer cells and leads to durable regression of RB1 mut tumor xenografts at exposures that are well tolerated in rodents. Genetic suppression screens identified enforcers of the spindle-assembly checkpoint (SAC) as essential for LY3295668 cytotoxicity in RB1-deficient cancers and suggest a model in which a primed SAC creates a unique dependency on AURKA for mitotic exit and survival. SIGNIFICANCE: The identification of a synthetic lethal interaction between RB1 and AURKA inhibition, and the discovery of a drug that can be dosed continuously to achieve uninterrupted inhibition of AURKA kinase activity without myelosuppression, suggest a new approach for the treatment of RB1-deficient malignancies, including patients progressing on CDK4/6 inhibitors.See related commentary by Dick and Li, p. 169.This article is highlighted in the In This Issue feature, p. 151.
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Affiliation(s)
| | - Jian Du
- Eli Lilly and Company, Indianapolis, Indiana
| | | | | | - Yue Webster
- Eli Lilly and Company, Indianapolis, Indiana
| | | | | | | | - Xi Lin
- Eli Lilly and Company, Indianapolis, Indiana
| | | | - Bomie Han
- Eli Lilly and Company, Indianapolis, Indiana
| | | | - Sufang Yao
- Eli Lilly and Company, Indianapolis, Indiana
| | - Huimin Bian
- Eli Lilly and Company, Indianapolis, Indiana
| | | | - Li Fan
- Eli Lilly and Company, Indianapolis, Indiana
| | | | - Stephen Antonysamy
- Eli Lilly and Company, Discovery Chemistry Research and Technologies, Lilly Biotechnology Center, San Diego, California
| | | | - Karen Froning
- Eli Lilly and Company, Discovery Chemistry Research and Technologies, Lilly Biotechnology Center, San Diego, California
| | - Danalyn Manglicmot
- Eli Lilly and Company, Discovery Chemistry Research and Technologies, Lilly Biotechnology Center, San Diego, California
| | - Anna Pustilnik
- Eli Lilly and Company, Discovery Chemistry Research and Technologies, Lilly Biotechnology Center, San Diego, California
| | - Kenneth Weichert
- Eli Lilly and Company, Discovery Chemistry Research and Technologies, Lilly Biotechnology Center, San Diego, California
| | - Stephen R Wasserman
- Eli Lilly and Company, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois
| | | | - Carlos Marugán
- Eli Lilly and Company, Lilly Research Laboratories, Avenida de la Industria, Alcobendas, Spain
| | - Carmen Baquero
- Eli Lilly and Company, Lilly Research Laboratories, Avenida de la Industria, Alcobendas, Spain
| | - María José Lallena
- Eli Lilly and Company, Lilly Research Laboratories, Avenida de la Industria, Alcobendas, Spain
| | - Scott W Eastman
- Eli Lilly and Company, Alexandria Center for Life Sciences, New York, New York
| | - Yu-Hua Hui
- Eli Lilly and Company, Indianapolis, Indiana
| | | | | | - Shaoyou Chu
- Eli Lilly and Company, Indianapolis, Indiana
| | | | - Xiang S Ye
- Eli Lilly and Company, Indianapolis, Indiana
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Gong X, Litchfield LM, Webster Y, Chio LC, Wong SS, Stewart TR, Dowless M, Dempsey J, Zeng Y, Torres R, Boehnke K, Mur C, Marugán C, Baquero C, Yu C, Bray SM, Wulur IH, Bi C, Chu S, Qian HR, Iversen PW, Merzoug FF, Ye XS, Reinhard C, De Dios A, Du J, Caldwell CW, Lallena MJ, Beckmann RP, Buchanan SG. Genomic Aberrations that Activate D-type Cyclins Are Associated with Enhanced Sensitivity to the CDK4 and CDK6 Inhibitor Abemaciclib. Cancer Cell 2017; 32:761-776.e6. [PMID: 29232554 DOI: 10.1016/j.ccell.2017.11.006] [Citation(s) in RCA: 152] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 08/10/2017] [Accepted: 11/08/2017] [Indexed: 12/11/2022]
Abstract
Most cancers preserve functional retinoblastoma (Rb) and may, therefore, respond to inhibition of D-cyclin-dependent Rb kinases, CDK4 and CDK6. To date, CDK4/6 inhibitors have shown promising clinical activity in breast cancer and lymphomas, but it is not clear which additional Rb-positive cancers might benefit from these agents. No systematic survey to compare relative sensitivities across tumor types and define molecular determinants of response has been described. We report a subset of cancers highly sensitive to CDK4/6 inhibition and characterized by various genomic aberrations known to elevate D-cyclin levels and describe a recurrent CCND1 3'UTR mutation associated with increased expression in endometrial cancer. The results suggest multiple additional classes of cancer that may benefit from CDK4/6-inhibiting drugs such as abemaciclib.
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Affiliation(s)
- Xueqian Gong
- Eli Lilly and Company, Indianapolis, IN 46285, USA
| | | | - Yue Webster
- Eli Lilly and Company, Indianapolis, IN 46285, USA
| | - Li-Chun Chio
- Eli Lilly and Company, Indianapolis, IN 46285, USA
| | | | | | | | - Jack Dempsey
- Eli Lilly and Company, Indianapolis, IN 46285, USA
| | - Yi Zeng
- Eli Lilly and Company, Indianapolis, IN 46285, USA
| | | | | | - Cecilia Mur
- Eli Lilly and Company, Alcobendas, Madrid, Spain
| | | | | | | | | | | | - Chen Bi
- Eli Lilly and Company, Indianapolis, IN 46285, USA
| | - Shaoyou Chu
- Eli Lilly and Company, Indianapolis, IN 46285, USA
| | | | | | | | | | | | | | - Jian Du
- Eli Lilly and Company, Indianapolis, IN 46285, USA
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Wachowicz P, Fernández-Miranda G, Marugán C, Escobar B, de Cárcer G. Genetic depletion of Polo-like kinase 1 leads to embryonic lethality due to mitotic aberrancies. Bioessays 2016; 38 Suppl 1:S96-S106. [PMID: 27417127 DOI: 10.1002/bies.201670908] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 07/17/2015] [Accepted: 07/21/2015] [Indexed: 12/18/2022]
Abstract
Polo-like kinase 1 (PLK1) is a serine/threonine kinase that plays multiple and essential roles during the cell division cycle. Its inhibition in cultured cells leads to severe mitotic aberrancies and cell death. Whereas previous reports suggested that Plk1 depletion in mice leads to a non-mitotic arrest in early embryos, we show here that the bi-allelic Plk1 depletion in mice certainly results in embryonic lethality due to extensive mitotic aberrations at the morula stage, including multi- and mono-polar spindles, impaired chromosome segregation and cytokinesis failure. In addition, the conditional depletion of Plk1 during mid-gestation leads also to severe mitotic aberrancies. Our data also confirms that Plk1 is completely dispensable for mitotic entry in vivo. On the other hand, Plk1 haploinsufficient mice are viable, and Plk1-heterozygous fibroblasts do not harbor any cell cycle alterations. Plk1 is overexpressed in many human tumors, suggesting a therapeutic benefit of inhibiting Plk1, and specific small-molecule inhibitors for this kinase are now being evaluated in clinical trials. Therefore, the different Plk1 mouse models here presented are a valuable tool to reexamine the relevance of the mitotic kinase Plk1 during mammalian development and animal physiology.
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Affiliation(s)
- Paulina Wachowicz
- Spanish National Cancer Research Centre (CNIO), Madrid, Spain
- Ecole polytechnique fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Gonzalo Fernández-Miranda
- Spanish National Cancer Research Centre (CNIO), Madrid, Spain
- Institute for Research in Biomedicine (IRB), Barcelona, Spain
| | - Carlos Marugán
- Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Beatriz Escobar
- Spanish National Cancer Research Centre (CNIO), Madrid, Spain
- Spanish National Cardiovascular Research Centre (CNIC), Madrid, Spain
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Marugán C, Torres R, Lallena MJ. Phenotypic Screening Approaches to Develop Aurora Kinase Inhibitors: Drug Discovery Perspectives. Front Oncol 2016; 5:299. [PMID: 26779442 PMCID: PMC4703775 DOI: 10.3389/fonc.2015.00299] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 12/14/2015] [Indexed: 01/10/2023] Open
Abstract
Targeting mitotic regulators as a strategy to fight cancer implies the development of drugs against key proteins, such as Aurora-A and -B. Current drugs, which target mitosis through a general mechanism of action (stabilization/destabilization of microtubules), have several side effects (neutropenia, alopecia, and emesis). Pharmaceutical companies aim at avoiding these unwanted effects by generating improved and selective drugs that increase the quality of life of the patients. However, the development of these drugs is an ambitious task that involves testing thousands of compounds through biochemical and cell-based assays. In addition, molecules usually target complex biological processes, involving several proteins and different molecular pathways, further emphasizing the need for high-throughput screening techniques and multiplexing technologies in order to identify drugs with the desired phenotype. We will briefly describe two multiplexing technologies [high-content imaging (HCI) and flow cytometry] and two key processes for drug discovery research (assay development and validation) following our own published industry quality standards. We will further focus on HCI as a useful tool for phenotypic screening and will provide a concrete example of HCI assay to detect Aurora-A or -B selective inhibitors discriminating the off-target effects related to the inhibition of other cell cycle or non-cell cycle key regulators. Finally, we will describe other assays that can help to characterize the in vitro pharmacology of the inhibitors.
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Affiliation(s)
- Carlos Marugán
- Discovery Chemistry Research and Technology, Lilly Research Laboratories, Eli Lilly and Company , Alcobendas , Spain
| | - Raquel Torres
- Discovery Chemistry Research and Technology, Lilly Research Laboratories, Eli Lilly and Company , Alcobendas , Spain
| | - María José Lallena
- Discovery Chemistry Research and Technology, Lilly Research Laboratories, Eli Lilly and Company , Alcobendas , Spain
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