1
|
Chen J, Wei J, Xia P, Liu Y, Belew MD, Toohill R, Wu BJ, Cheng Z. Inhibition of cyclin-dependent kinase 7 mitigates doxorubicin cardiotoxicity and enhances anticancer efficacy. Cardiovasc Res 2024; 120:1024-1036. [PMID: 38646672 PMCID: PMC11288736 DOI: 10.1093/cvr/cvae084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 01/16/2024] [Accepted: 02/29/2024] [Indexed: 04/23/2024] Open
Abstract
AIMS The anthracycline family of anticancer agents such as doxorubicin (DOX) can induce apoptotic death of cardiomyocytes and cause cardiotoxicity. We previously reported that DOX-induced apoptosis is accompanied by cardiomyocyte cell cycle re-entry. Cell cycle progression requires cyclin-dependent kinase 7 (CDK7)-mediated activation of downstream cell cycle CDKs. This study aims to determine whether CDK7 can be targeted for cardioprotection during anthracycline chemotherapy. METHODS AND RESULTS DOX exposure induced CDK7 activation in mouse heart and isolated cardiomyocytes. Cardiac-specific ablation of Cdk7 attenuated DOX-induced cardiac dysfunction and fibrosis. Treatment with the covalent CDK7 inhibitor THZ1 also protected against DOX-induced cardiomyopathy and apoptosis. DOX treatment induced activation of the proapoptotic CDK2-FOXO1-Bim axis in a CDK7-dependent manner. In response to DOX, endogenous CDK7 directly bound and phosphorylated CDK2 at Thr160 in cardiomyocytes, leading to full CDK2 kinase activation. Importantly, inhibition of CDK7 further suppressed tumour growth when used in combination with DOX in an immunocompetent mouse model of breast cancer. CONCLUSION Activation of CDK7 is necessary for DOX-induced cardiomyocyte apoptosis and cardiomyopathy. Our findings uncover a novel proapoptotic role for CDK7 in cardiomyocytes. Moreover, this study suggests that inhibition of CDK7 attenuates DOX-induced cardiotoxicity but augments the anticancer efficacy of DOX. Therefore, combined administration of CDK7 inhibitor and DOX may exhibit diminished cardiotoxicity but superior anticancer activity.
Collapse
MESH Headings
- Animals
- Doxorubicin/toxicity
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/enzymology
- Myocytes, Cardiac/pathology
- Myocytes, Cardiac/metabolism
- Cardiotoxicity
- Cyclin-Dependent Kinases/metabolism
- Cyclin-Dependent Kinases/antagonists & inhibitors
- Apoptosis/drug effects
- Protein Kinase Inhibitors/pharmacology
- Cyclin-Dependent Kinase 2/metabolism
- Cyclin-Dependent Kinase 2/antagonists & inhibitors
- Mice, Inbred C57BL
- Cyclin-Dependent Kinase-Activating Kinase
- Female
- Phenylenediamines/pharmacology
- Signal Transduction/drug effects
- Phosphorylation
- Mice, Knockout
- Cardiomyopathies/chemically induced
- Cardiomyopathies/enzymology
- Cardiomyopathies/prevention & control
- Cardiomyopathies/pathology
- Cardiomyopathies/metabolism
- Antibiotics, Antineoplastic/toxicity
- Pyrimidines/pharmacology
- Humans
- Fibrosis
- Cell Line, Tumor
- Mammary Neoplasms, Experimental/drug therapy
- Mammary Neoplasms, Experimental/pathology
- Mammary Neoplasms, Experimental/enzymology
- Mammary Neoplasms, Experimental/metabolism
- Ventricular Function, Left/drug effects
Collapse
Affiliation(s)
- Jingrui Chen
- Department of Pharmaceutical Sciences, Washington State University, 412 E. Spokane Falls Blvd., Spokane, WA 99202-2131, USA
| | - Jing Wei
- Department of Pharmaceutical Sciences, Washington State University, 412 E. Spokane Falls Blvd., Spokane, WA 99202-2131, USA
| | - Peng Xia
- Department of Pharmaceutical Sciences, Washington State University, 412 E. Spokane Falls Blvd., Spokane, WA 99202-2131, USA
| | - Yuening Liu
- Department of Pharmaceutical Sciences, Washington State University, 412 E. Spokane Falls Blvd., Spokane, WA 99202-2131, USA
| | - Mahder Dawit Belew
- Department of Pharmaceutical Sciences, Washington State University, 412 E. Spokane Falls Blvd., Spokane, WA 99202-2131, USA
| | - Ryan Toohill
- Department of Pharmaceutical Sciences, Washington State University, 412 E. Spokane Falls Blvd., Spokane, WA 99202-2131, USA
| | - Boyang Jason Wu
- Department of Pharmaceutical Sciences, Washington State University, 412 E. Spokane Falls Blvd., Spokane, WA 99202-2131, USA
| | - Zhaokang Cheng
- Department of Pharmaceutical Sciences, Washington State University, 412 E. Spokane Falls Blvd., Spokane, WA 99202-2131, USA
| |
Collapse
|
2
|
Zhang H, Lin G, Jia S, Wu J, Zhang Y, Tao Y, Huang W, Song M, Ding K, Ma D, Fan M. Design, synthesis and evaluation of thieno[3,2-d]pyrimidine derivatives as novel potent CDK7 inhibitors. Bioorg Chem 2024; 148:107456. [PMID: 38761706 DOI: 10.1016/j.bioorg.2024.107456] [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: 01/11/2024] [Revised: 05/10/2024] [Accepted: 05/13/2024] [Indexed: 05/20/2024]
Abstract
The targeting of cyclin-dependent kinase 7 (CDK7) has become a highly desirable therapeutic approach in the field of oncology due to its dual role in regulating essential biological processes, encompassing cell cycle progression and transcriptional control. We have previously identified a highly selective thieno[3,2-d]pyrimidine-based CDK7 inhibitor with demonstrated efficacy and safety in animal model. In this study, we sought to optimize the thieno[3,2-d]pyrimidine core to discover a novel series of CDK7 inhibitors with improved potency and pharmacokinetic (PK) properties. Through extensive structure-activity relationship (SAR) studies, compound 20 has emerged as the lead candidate due to its potent inhibitory activity against CDK7 and remarkable efficacy on MDA-MB-453 cells, a representative triple negative breast cancer (TNBC) cell line. Furthermore, 20 has demonstrated favorable oral bioavailability and exhibited highly desirable pharmacokinetic (PK) properties, making it a promising lead candidate for further structural optimization.
Collapse
Affiliation(s)
- Hongjin Zhang
- Academy of Medical Engineering and Translational Medicine (AMT), Tianjin University, Tianjin 300072, China; Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China
| | - Guohao Lin
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China; Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, China
| | - Suyun Jia
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China; School of Molecular Medicine, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang 310024, China; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 20032, China
| | - Jianbo Wu
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China; College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Ying Zhang
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China; College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Yanxin Tao
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China; School of Molecular Medicine, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang 310024, China; Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; School of of Life Sciences, Tianjin University, Tianjin 300072, China
| | - Weixue Huang
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 20032, China
| | - Meiru Song
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China; Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, China; Institute of Chemistry, Henan Academy of Sciences, Zhengzhou, Henan 450046, China
| | - Ke Ding
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 20032, China.
| | - Dawei Ma
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 20032, China.
| | - Mengyang Fan
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China; Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, China.
| |
Collapse
|
3
|
Song X, Fang C, Dai Y, Sun Y, Qiu C, Lin X, Xu R. Cyclin-dependent kinase 7 (CDK7) inhibitors as a novel therapeutic strategy for different molecular types of breast cancer. Br J Cancer 2024; 130:1239-1248. [PMID: 38355840 PMCID: PMC11014910 DOI: 10.1038/s41416-024-02589-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 01/06/2024] [Accepted: 01/16/2024] [Indexed: 02/16/2024] Open
Abstract
BACKGROUND Cyclin-dependent kinase (CDK) 7 is aberrantly overexpressed in many types of cancer and is an attractive target for cancer therapy due to its dual role in transcription and cell cycle progression. Moreover, CDK7 can directly modulate the activities of estrogen receptor (ER), which is a major driver in breast cancer. Breast cancer cells have exhibited high sensitivity to CDK7 inhibition in pre-clinical studies. METHODS In this review, we provide a comprehensive summary of the latest insights into CDK7 biology and recent advancements in CDK7 inhibitor development for breast cancer treatment. We also discuss the current application of CDK7 inhibitors in different molecular types of breast cancer to provide potential strategies for the treatment of breast cancer. RESULTS Significant progress has been made in the development of selective CDK7 inhibitors, which show efficacy in both triple-negative breast cancer (TNBC) and hormone receptor-positive breast cancer (HR+). Moreover, combined with other agents, CDK7 inhibitors may provide synergistic effects for endocrine therapy and chemotherapy. Thus, high-quality studies for developing potent CDK7 inhibitors and investigating their applications in breast cancer therapy are rapidly emerging. CONCLUSION CDK7 inhibitors have emerged as a promising therapeutic strategy and have demonstrated significant anti-cancer activity in different subtypes of breast cancer, especially those that have been resistant to current therapies.
Collapse
Affiliation(s)
- Xue Song
- Department of Breast Cancer, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510120, China
| | - Chen Fang
- Department of Breast Cancer, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510120, China
| | - Yan Dai
- Department of Breast Cancer, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510120, China
| | - Yang Sun
- Department of Breast Cancer, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510120, China
| | - Chang Qiu
- Department of Breast Cancer, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510120, China
| | - Xiaojie Lin
- Department of Breast Cancer, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510120, China
| | - Rui Xu
- Department of Breast Cancer, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510120, China.
| |
Collapse
|
4
|
Niu P, Tao Y, Lin G, Xu H, Meng Q, Yang K, Huang W, Song M, Ding K, Ma D, Fan M. Design and Synthesis of Novel Macrocyclic Derivatives as Potent and Selective Cyclin-Dependent Kinase 7 Inhibitors. J Med Chem 2024; 67:6099-6118. [PMID: 38586950 DOI: 10.1021/acs.jmedchem.3c01832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
The duality of function (cell cycle regulation and gene transcription) of cyclin-dependent kinase 7 (CDK7) makes it an attractive oncology target and the discovery of CDK7 inhibitors has been a long-term pursuit by academia and pharmaceutical companies. However, achieving selective leading compounds is still difficult owing to the similarities among the ATP binding pocket. Herein, we detail the design and synthesis of a series of macrocyclic derivatives with pyrazolo[1,5-a]-1,3,5-triazine core structure as potent and selective CDK7 inhibitors. The diverse manners of macrocyclization led to distinguished selectivity profiles of the CDK family. Molecular dynamics (MD) simulation explained the binding difference between 15- and 16-membered macrocyclic compounds. Further optimization generated compound 37 exhibiting good CDK7 inhibitory activity and high selectivity over other CDKs. This work clearly demonstrated macrocyclization is a versatile method to finely tune the selectivity profile of small molecules and MD simulation can be a valuable tool in prioritizing designs of the macrocycle.
Collapse
Affiliation(s)
- Pengpeng Niu
- Academy of Medical Engineering and Translational Medicine (AMT), Tianjin University, Tianjin 300072, China
- Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China
| | - Yanxin Tao
- Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China
- School of Molecular Medicine, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang 310024, China
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- School of Life Sciences, Tianjin University, Tianjin 300072, China
| | - Guohao Lin
- Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China
- Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, China
| | - Huiqi Xu
- Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Qingyuan Meng
- Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China
- School of Molecular Medicine, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang 310024, China
- Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Kang Yang
- Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Weixue Huang
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 20032, China
| | - Meiru Song
- Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China
- Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, China
| | - Ke Ding
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 20032, China
| | - Dawei Ma
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 20032, China
| | - Mengyang Fan
- Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China
- Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, China
| |
Collapse
|
5
|
Paternot S, Raspé E, Meiller C, Tarabichi M, Assié J, Libert F, Remmelink M, Bisteau X, Pauwels P, Blum Y, Le Stang N, Tabone‐Eglinger S, Galateau‐Sallé F, Blanquart C, Van Meerbeeck JP, Berghmans T, Jean D, Roger PP. Preclinical evaluation of CDK4 phosphorylation predicts high sensitivity of pleural mesotheliomas to CDK4/6 inhibition. Mol Oncol 2024; 18:866-894. [PMID: 36453028 PMCID: PMC10994244 DOI: 10.1002/1878-0261.13351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 11/04/2022] [Accepted: 11/30/2022] [Indexed: 12/05/2022] Open
Abstract
Malignant pleural mesothelioma (MPM) is an aggressive cancer with limited therapeutic options. We evaluated the impact of CDK4/6 inhibition by palbociclib in 28 MPM cell lines including 19 patient-derived ones, using various approaches including RNA-sequencing. Palbociclib strongly and durably inhibited the proliferation of 23 cell lines, indicating a unique sensitivity of MPM to CDK4/6 inhibition. When observed, insensitivity to palbociclib was mostly explained by the lack of active T172-phosphorylated CDK4. This was associated with high p16INK4A (CDKN2A) levels that accompany RB1 defects or inactivation, or (unexpectedly) CCNE1 overexpression in the presence of wild-type RB1. Prolonged palbociclib treatment irreversibly inhibited proliferation despite re-induction of cell cycle genes upon drug washout. A senescence-associated secretory phenotype including various potentially immunogenic components was irreversibly induced. Phosphorylated CDK4 was detected in 80% of 47 MPMs indicating their sensitivity to CDK4/6 inhibitors. Its absence in some highly proliferative MPMs was linked to very high p16 (CDKN2A) expression, which was also observed in public datasets in tumours from short-survival patients. Our study supports the evaluation of CDK4/6 inhibitors for MPM treatment, in monotherapy or combination therapy.
Collapse
Affiliation(s)
- Sabine Paternot
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM)Université Libre de BruxellesBelgium
- ULB‐Cancer Research Center (U‐CRC)Université Libre de BruxellesBelgium
| | - Eric Raspé
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM)Université Libre de BruxellesBelgium
- ULB‐Cancer Research Center (U‐CRC)Université Libre de BruxellesBelgium
| | - Clément Meiller
- Université de ParisCentre de Recherche des Cordeliers, Inserm, Sorbonne Université, Functional Genomics of Solid TumorsFrance
| | - Maxime Tarabichi
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM)Université Libre de BruxellesBelgium
- ULB‐Cancer Research Center (U‐CRC)Université Libre de BruxellesBelgium
| | - Jean‐Baptiste Assié
- Université de ParisCentre de Recherche des Cordeliers, Inserm, Sorbonne Université, Functional Genomics of Solid TumorsFrance
- CEpiA (Clinical Epidemiology and Ageing), EA 7376‐IMRBUniversity Paris‐Est CréteilFrance
- GRC OncoThoParisEst, Service de Pneumologie, CHI Créteil, UPECCréteilFrance
| | - Frederick Libert
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM)Université Libre de BruxellesBelgium
- ULB‐Cancer Research Center (U‐CRC)Université Libre de BruxellesBelgium
- BRIGHTCore, ULBBrusselsBelgium
| | - Myriam Remmelink
- Department of Pathology, Erasme HospitalUniversité Libre de BruxellesBelgium
| | - Xavier Bisteau
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM)Université Libre de BruxellesBelgium
- ULB‐Cancer Research Center (U‐CRC)Université Libre de BruxellesBelgium
| | - Patrick Pauwels
- Center for Oncological Research (CORE)Integrated Personalized and Precision Oncology Network (IPPON)WilrijkBelgium
- Department of PathologyAntwerp University HospitalEdegemBelgium
| | - Yuna Blum
- Programme Cartes d'Identité des Tumeurs (CIT), Ligue Nationale Contre Le CancerParisFrance
- Present address:
IGDR UMR 6290, CNRS, Université de Rennes 1France
| | - Nolwenn Le Stang
- MESOBANK, Department of Biopathology, Centre Léon BérardLyonFrance
| | | | - Françoise Galateau‐Sallé
- MESOBANK, Department of Biopathology, Centre Léon BérardLyonFrance
- Cancer Research Center INSERM U1052‐CNRS 5286RLyonFrance
| | | | | | - Thierry Berghmans
- Clinic of Thoracic OncologyInstitut Jules Bordet, Université Libre de BruxellesBrusselsBelgium
| | - Didier Jean
- Université de ParisCentre de Recherche des Cordeliers, Inserm, Sorbonne Université, Functional Genomics of Solid TumorsFrance
| | - Pierre P. Roger
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM)Université Libre de BruxellesBelgium
- ULB‐Cancer Research Center (U‐CRC)Université Libre de BruxellesBelgium
| |
Collapse
|
6
|
Garralda E, Schram AM, Bedard PL, Schwartz GK, Yuen E, McNeely SC, Ribeiro S, Cunningham J, Wang Y, Urunuela A, Xu X, LoRusso P. A Phase I Dose-Escalation Study of LY3405105, a Covalent Inhibitor of Cyclin-Dependent Kinase 7, Administered to Patients With Advanced Solid Tumors. Oncologist 2024; 29:e131-e140. [PMID: 37531083 PMCID: PMC10769797 DOI: 10.1093/oncolo/oyad215] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 07/16/2023] [Indexed: 08/03/2023] Open
Abstract
BACKGROUND This study aimed to evaluate the safety, pharmacokinetics (PKs), and preliminary activity of LY3405105, a covalent inhibitor of cyclin-dependent kinase 7 (CDK7), in patients with advanced solid tumors. MATERIALS AND METHODS LY3405105 monotherapy was given once daily (QD; part A1) or thrice weekly (TIW; part A2) starting at 1 and 2 mg orally, respectively, and escalated per a Bayesian design in adult patients. The primary endpoint was safety, and secondary endpoints included PKs and antitumor activity. RESULTS Fifty-four patients were enrolled: 43 in part A1 and 11 in part A2. Seven patients had dose-limiting toxicities, all in part A1 (45 mg: n = 3; 35 mg: n = 3; 25 mg: n = 1). Thirty-five patients (64.8%) reported at least one treatment-related adverse event (TRAE). TRAEs (≥10%) were diarrhea, nausea, fatigue, vomiting, abdominal pain, anemia, asthenia, and decreased platelet count. QD dosing showed sustained exposure with less peak-trough fluctuation compared to TIW dosing. Median time to maximum concentration was 1-2 hours and half-life was 15-19 hours. CDK7-target occupancy in skin and peripheral blood on day 15 was dose-dependent and reached near maximal occupancy of 75% at ≥15 mg QD. The maximum tolerated dose (MTD) was 20 mg QD. Twelve patients in part A1 (27.9%) and 5 patients in part A2 (45.5%) had a best overall response of stable disease. No complete response or partial response was observed. CONCLUSION The MTD of LY3405105 monotherapy was 20 mg QD. The most common toxicities were gastrointestinal adverse events, myelosuppression, fatigue, and asthenia. Limited clinical activity was observed in this phase I trial, and there are no plans for further development. CLINICALTRIALS.GOV IDENTIFIER NCT03770494.
Collapse
Affiliation(s)
- Elena Garralda
- Department of Medical Oncology, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Alison M Schram
- Department of Medicine, Memorial Sloan Kettering Cancer Center, Weill Cornell Medical College, New York, NY, USA
| | - Philippe L Bedard
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Gary K Schwartz
- Columbia University Vagelos School of Medicine, Herbert Irving Comprehensive Cancer Center, New York, NY, USA
| | - Eunice Yuen
- Eli Lilly and Company, Indianapolis, IN, USA
| | | | | | | | - Yi Wang
- Eli Lilly and Company, Indianapolis, IN, USA
| | | | - Xiaojian Xu
- Eli Lilly and Company, Indianapolis, IN, USA
| | | |
Collapse
|
7
|
Zhang H, Lin G, Jia S, Zhang Y, Wu J, Tao Y, Huang W, Song M, Ding K, Ma D, Fan M. Discovery and optimization of thieno[3,2-d]pyrimidine derivatives as highly selective inhibitors of cyclin-dependent kinase 7. Eur J Med Chem 2024; 263:115955. [PMID: 38000213 DOI: 10.1016/j.ejmech.2023.115955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/05/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023]
Abstract
Targeting cyclin-dependent kinase 7 (CDK7) has emerged as a highly sought-after therapeutic strategy in oncology due to its duality of function in regulating biological processes, including cell cycle progression and transcriptional control. Herein, we describe the design, optimization and characterization of a series of thieno[3,2-d]pyrimidine derivatives as potent CDK7 inhibitors. The involvement of thiophene as core structure plays critical role in leading to the remarkable selectivity and incorporation of a fluorine atom into the piperidine ring enhances metabolic stability. Structure-activity relationship (SAR) study generated compound 36 as lead compound with potent inhibitory activity against CDK7 and good kinome selectivity in vitro. Compound 36 demonstrated strong efficacy against a triple negative breast cancer (TNBC) cell line-derived xenograft (CDX) mouse model upon oral administration at 5 mg/kg once daily. Therefore, it exhibits immense potential as a lead candidate for further exploration in the development of cancer therapy.
Collapse
Affiliation(s)
- Hongjin Zhang
- Academy of Medical Engineering and Translational Medicine (AMT), Tianjin University, Tianjin, 300072, China; Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310018, China
| | - Guohao Lin
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310018, China; Zhejiang Cancer Hospital, Hangzhou, Zhejiang, 310022, China
| | - Suyun Jia
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310018, China; School of Molecular Medicine, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang, 310024, China; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 20032, China
| | - Ying Zhang
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310018, China; College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Jianbo Wu
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310018, China; College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
| | - Yanxin Tao
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310018, China; School of Molecular Medicine, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang, 310024, China; Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; School of of Life Sciences, Tianjin University, Tianjin, 300072, China
| | - Weixue Huang
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 20032, China
| | - Meiru Song
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310018, China; Zhejiang Cancer Hospital, Hangzhou, Zhejiang, 310022, China
| | - Ke Ding
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 20032, China.
| | - Dawei Ma
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 20032, China.
| | - Mengyang Fan
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310018, China; Zhejiang Cancer Hospital, Hangzhou, Zhejiang, 310022, China.
| |
Collapse
|
8
|
Pita JM, Raspé E, Coulonval K, Decaussin-Petrucci M, Tarabichi M, Dom G, Libert F, Craciun L, Andry G, Wicquart L, Leteurtre E, Trésallet C, Marlow LA, Copland JA, Durante C, Maenhaut C, Cavaco BM, Dumont JE, Costante G, Roger PP. CDK4 phosphorylation status and rational use for combining CDK4/6 and BRAF/MEK inhibition in advanced thyroid carcinomas. Front Endocrinol (Lausanne) 2023; 14:1247542. [PMID: 37964967 PMCID: PMC10641312 DOI: 10.3389/fendo.2023.1247542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 09/26/2023] [Indexed: 11/16/2023] Open
Abstract
Background CDK4/6 inhibitors (CDK4/6i) have been established as standard treatment against advanced Estrogen Receptor-positive breast cancers. These drugs are being tested against several cancers, including in combinations with other therapies. We identified the T172-phosphorylation of CDK4 as the step determining its activity, retinoblastoma protein (RB) inactivation, cell cycle commitment and sensitivity to CDK4/6i. Poorly differentiated (PDTC) and anaplastic (ATC) thyroid carcinomas, the latter considered one of the most lethal human malignancies, represent major clinical challenges. Several molecular evidence suggest that CDK4/6i could be considered for treating these advanced thyroid cancers. Methods We analyzed by two-dimensional gel electrophoresis the CDK4 modification profile and the presence of T172-phosphorylated CDK4 in a collection of 98 fresh-frozen tissues and in 21 cell lines. A sub-cohort of samples was characterized by RNA sequencing and immunohistochemistry. Sensitivity to CDK4/6i (palbociclib and abemaciclib) was assessed by BrdU incorporation/viability assays. Treatment of cell lines with CDK4/6i and combination with BRAF/MEK inhibitors (dabrafenib/trametinib) was comprehensively evaluated by western blot, characterization of immunoprecipitated CDK4 and CDK2 complexes and clonogenic assays. Results CDK4 phosphorylation was detected in all well-differentiated thyroid carcinomas (n=29), 19/20 PDTC, 16/23 ATC and 18/21 thyroid cancer cell lines, including 11 ATC-derived ones. Tumors and cell lines without phosphorylated CDK4 presented very high p16CDKN2A levels, which were associated with proliferative activity. Absence of CDK4 phosphorylation in cell lines was associated with CDK4/6i insensitivity. RB1 defects (the primary cause of intrinsic CDK4/6i resistance) were not found in 5/7 tumors without detectable phosphorylated CDK4. A previously developed 11-gene expression signature identified the likely unresponsive tumors, lacking CDK4 phosphorylation. In cell lines, palbociclib synergized with dabrafenib/trametinib by completely and permanently arresting proliferation. These combinations prevented resistance mechanisms induced by palbociclib, most notably Cyclin E1-CDK2 activation and a paradoxical stabilization of phosphorylated CDK4 complexes. Conclusion Our study supports further clinical evaluation of CDK4/6i and their combination with anti-BRAF/MEK therapies as a novel effective treatment against advanced thyroid tumors. Moreover, the complementary use of our 11 genes predictor with p16/KI67 evaluation could represent a prompt tool for recognizing the intrinsically CDK4/6i insensitive patients, who are potentially better candidates to immediate chemotherapy.
Collapse
Affiliation(s)
- Jaime M. Pita
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Eric Raspé
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Katia Coulonval
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | | | - Maxime Tarabichi
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Geneviève Dom
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Frederick Libert
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
- BRIGHTCore, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Ligia Craciun
- Tumor Bank of the Institut Jules Bordet Comprehensive Cancer Center – Hôpital Universitaire de Bruxelles, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Guy Andry
- Department of Head & Neck and Thoracic Surgery, Institut Jules Bordet Comprehensive Cancer Center – Hôpital Universitaire de Bruxelles, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Laurence Wicquart
- Tumorothèque du Groupement de Coopération Sanitaire-Centre Régional de Référence en Cancérologie (C2RC) de Lille, Lille, France
| | - Emmanuelle Leteurtre
- Department of Pathology, Univ. Lille, Centre National de la Recherche Scientifique (CNRS), Inserm, Centre Hospitalo-Universitaire (CHU) Lille, UMR9020-U1277-CANTHER-Cancer Heterogeneity, Plasticity and Resistance to Therapies, Lille, France
| | - Christophe Trésallet
- Department of General and Endocrine Surgery - Pitié-Salpêtrière Hospital, Sorbonne University, Assistance Publique des Hôpitaux de Paris, Paris, France
- Department of Digestive, Bariatric and Endocrine Surgery - Avicenne University Hospital, Paris Nord - Sorbonne University, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Laura A. Marlow
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, United States
| | - John A. Copland
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL, United States
| | - Cosimo Durante
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Carine Maenhaut
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Branca M. Cavaco
- Molecular Endocrinology Group, Unidade de Investigação em Patobiologia Molecular (UIPM), Instituto Português de Oncologia de Lisboa Francisco Gentil (IPOLFG), Lisbon, Portugal
| | - Jacques E. Dumont
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Giuseppe Costante
- Departments of Endocrinology and Medical Oncology, Institut Jules Bordet Comprehensive Cancer Center – Hôpital Universitaire de Bruxelles, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Pierre P. Roger
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM) and Université Libre de Bruxelles (ULB)-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| |
Collapse
|
9
|
Pluta AJ, Studniarek C, Murphy S, Norbury CJ. Cyclin-dependent kinases: Masters of the eukaryotic universe. WILEY INTERDISCIPLINARY REVIEWS. RNA 2023; 15:e1816. [PMID: 37718413 PMCID: PMC10909489 DOI: 10.1002/wrna.1816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/21/2023] [Accepted: 08/03/2023] [Indexed: 09/19/2023]
Abstract
A family of structurally related cyclin-dependent protein kinases (CDKs) drives many aspects of eukaryotic cell function. Much of the literature in this area has considered individual members of this family to act primarily either as regulators of the cell cycle, the context in which CDKs were first discovered, or as regulators of transcription. Until recently, CDK7 was the only clear example of a CDK that functions in both processes. However, new data points to several "cell-cycle" CDKs having important roles in transcription and some "transcriptional" CDKs having cell cycle-related targets. For example, novel functions in transcription have been demonstrated for the archetypal cell cycle regulator CDK1. The increasing evidence of the overlap between these two CDK types suggests that they might play a critical role in coordinating the two processes. Here we review the canonical functions of cell-cycle and transcriptional CDKs, and provide an update on how these kinases collaborate to perform important cellular functions. We also provide a brief overview of how dysregulation of CDKs contributes to carcinogenesis, and possible treatment avenues. This article is categorized under: RNA Interactions with Proteins and Other Molecules > RNA-Protein Complexes RNA Processing > 3' End Processing RNA Processing > Splicing Regulation/Alternative Splicing.
Collapse
Affiliation(s)
| | | | - Shona Murphy
- Sir William Dunn School of PathologyUniversity of OxfordOxfordUK
| | - Chris J. Norbury
- Sir William Dunn School of PathologyUniversity of OxfordOxfordUK
| |
Collapse
|
10
|
Deng Z, Richardson DR. The Myc Family and the Metastasis Suppressor NDRG1: Targeting Key Molecular Interactions with Innovative Therapeutics. Pharmacol Rev 2023; 75:1007-1035. [PMID: 37280098 DOI: 10.1124/pharmrev.122.000795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 03/07/2023] [Accepted: 05/01/2023] [Indexed: 06/08/2023] Open
Abstract
Cancer is a leading cause of death worldwide, resulting in ∼10 million deaths in 2020. Major oncogenic effectors are the Myc proto-oncogene family, which consists of three members including c-Myc, N-Myc, and L-Myc. As a pertinent example of the role of the Myc family in tumorigenesis, amplification of MYCN in childhood neuroblastoma strongly correlates with poor patient prognosis. Complexes between Myc oncoproteins and their partners such as hypoxia-inducible factor-1α and Myc-associated protein X (MAX) result in proliferation arrest and pro-proliferative effects, respectively. Interactions with other proteins are also important for N-Myc activity. For instance, the enhancer of zest homolog 2 (EZH2) binds directly to N-Myc to stabilize it by acting as a competitor against the ubiquitin ligase, SCFFBXW7, which prevents proteasomal degradation. Heat shock protein 90 may also be involved in N-Myc stabilization since it binds to EZH2 and prevents its degradation. N-Myc downstream-regulated gene 1 (NDRG1) is downregulated by N-Myc and participates in the regulation of cellular proliferation via associating with other proteins, such as glycogen synthase kinase-3β and low-density lipoprotein receptor-related protein 6. These molecular interactions provide a better understanding of the biologic roles of N-Myc and NDRG1, which can be potentially used as therapeutic targets. In addition to directly targeting these proteins, disrupting their key interactions may also be a promising strategy for anti-cancer drug development. This review examines the interactions between the Myc proteins and other molecules, with a special focus on the relationship between N-Myc and NDRG1 and possible therapeutic interventions. SIGNIFICANCE STATEMENT: Neuroblastoma is one of the most common childhood solid tumors, with a dismal five-year survival rate. This problem makes it imperative to discover new and more effective therapeutics. The molecular interactions between major oncogenic drivers of the Myc family and other key proteins; for example, the metastasis suppressor, NDRG1, may potentially be used as targets for anti-neuroblastoma drug development. In addition to directly targeting these proteins, disrupting their key molecular interactions may also be promising for drug discovery.
Collapse
Affiliation(s)
- Zhao Deng
- Centre for Cancer Cell Biology and Drug Discovery, Griffith Institute for Drug Discovery, Griffith University, Nathan, Australia (Z.D., D.R.R.), and Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya, Japan (D.R.R.)
| | - Des R Richardson
- Centre for Cancer Cell Biology and Drug Discovery, Griffith Institute for Drug Discovery, Griffith University, Nathan, Australia (Z.D., D.R.R.), and Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya, Japan (D.R.R.)
| |
Collapse
|
11
|
Constantin TA, Varela-Carver A, Greenland KK, de Almeida GS, Olden E, Penfold L, Ang S, Ormrod A, Leach DA, Lai CF, Ainscow EK, Bahl AK, Carling D, Fuchter MJ, Ali S, Bevan CL. The CDK7 inhibitor CT7001 (Samuraciclib) targets proliferation pathways to inhibit advanced prostate cancer. Br J Cancer 2023; 128:2326-2337. [PMID: 37076563 PMCID: PMC10241923 DOI: 10.1038/s41416-023-02252-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 03/15/2023] [Accepted: 03/21/2023] [Indexed: 04/21/2023] Open
Abstract
BACKGROUND Current strategies to inhibit androgen receptor (AR) are circumvented in castration-resistant prostate cancer (CRPC). Cyclin-dependent kinase 7 (CDK7) promotes AR signalling, in addition to established roles in cell cycle and global transcription, providing a rationale for its therapeutic targeting in CRPC. METHODS The antitumour activity of CT7001, an orally bioavailable CDK7 inhibitor, was investigated across CRPC models in vitro and in xenograft models in vivo. Cell-based assays and transcriptomic analyses of treated xenografts were employed to investigate the mechanisms driving CT7001 activity, alone and in combination with the antiandrogen enzalutamide. RESULTS CT7001 selectively engages with CDK7 in prostate cancer cells, causing inhibition of proliferation and cell cycle arrest. Activation of p53, induction of apoptosis, and suppression of transcription mediated by full-length and constitutively active AR splice variants contribute to antitumour efficacy in vitro. Oral administration of CT7001 represses growth of CRPC xenografts and significantly augments growth inhibition achieved by enzalutamide. Transcriptome analyses of treated xenografts indicate cell cycle and AR inhibition as the mode of action of CT7001 in vivo. CONCLUSIONS This study supports CDK7 inhibition as a strategy to target deregulated cell proliferation and demonstrates CT7001 is a promising CRPC therapeutic, alone or in combination with AR-targeting compounds.
Collapse
Affiliation(s)
- Theodora A Constantin
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Anabel Varela-Carver
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Kyle K Greenland
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Gilberto Serrano de Almeida
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Ellen Olden
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Lucy Penfold
- MRC London Institute of Medical Sciences, Imperial College London, Hammersmith Hospital, London, UK
| | - Simon Ang
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Alice Ormrod
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Damien A Leach
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Chun-Fui Lai
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Edward K Ainscow
- Carrick Therapeutics, Nova UCD, Bellfield Innovation Park, Dublin, 4, Ireland
| | - Ash K Bahl
- Carrick Therapeutics, Nova UCD, Bellfield Innovation Park, Dublin, 4, Ireland
| | - David Carling
- MRC London Institute of Medical Sciences, Imperial College London, Hammersmith Hospital, London, UK
| | - Matthew J Fuchter
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, London, UK
| | - Simak Ali
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Charlotte L Bevan
- Imperial Centre for Translational and Experimental Medicine, Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK.
| |
Collapse
|
12
|
Arsenijevic T, Coulonval K, Raspé E, Demols A, Roger PP, Van Laethem JL. CDK4/6 Inhibitors in Pancreatobiliary Cancers: Opportunities and Challenges. Cancers (Basel) 2023; 15:968. [PMID: 36765923 PMCID: PMC9913743 DOI: 10.3390/cancers15030968] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023] Open
Abstract
Existing treatment strategies for pancreatobiliary malignancies are limited. Nowadays, surgery is the only path to cure these types of cancer, but only a small number of patients present with resectable tumors at the time of diagnosis. The notoriously poor prognosis, lack of diverse treatment options associated with pancreaticobiliary cancers, and their resistance to current therapies reflect the urge for the development of novel therapeutic targets. Cyclin-dependent kinase 4/6 (CDK4/6) inhibitors have emerged as an attractive therapeutic strategy in a number of cancers since their approval for treatment in patients with ER+/HER- breast cancer in combination with antiestrogens. In this article, we discuss the therapeutic potential of CDK4/6 inhibitors in pancreatobiliary cancers, notably cholangiocarcinoma and pancreatic ductal adenocarcinoma.
Collapse
Affiliation(s)
- Tatjana Arsenijevic
- Laboratory of Experimental Gastroenterology, Université Libre de Bruxelles, Route de Lennik 808, 1070 Brussels, Belgium
- Department of Gastroenterology, Hepatology and Digestive Oncology, HUB Bordet Erasme Hospital, Université Libre de Bruxelles, Route de Lennik 808, 1070 Brussels, Belgium
| | - Katia Coulonval
- Institute of Interdisciplinary Research (Iribhm), ULB-Cancer Research Center (U-crc), Université Libre de Bruxelles, Campus Erasme, Route de Lennik 808, 1070 Brussels, Belgium
| | - Eric Raspé
- Institute of Interdisciplinary Research (Iribhm), ULB-Cancer Research Center (U-crc), Université Libre de Bruxelles, Campus Erasme, Route de Lennik 808, 1070 Brussels, Belgium
| | - Anne Demols
- Laboratory of Experimental Gastroenterology, Université Libre de Bruxelles, Route de Lennik 808, 1070 Brussels, Belgium
- Department of Gastroenterology, Hepatology and Digestive Oncology, HUB Bordet Erasme Hospital, Université Libre de Bruxelles, Route de Lennik 808, 1070 Brussels, Belgium
| | - Pierre P. Roger
- Institute of Interdisciplinary Research (Iribhm), ULB-Cancer Research Center (U-crc), Université Libre de Bruxelles, Campus Erasme, Route de Lennik 808, 1070 Brussels, Belgium
| | - Jean-Luc Van Laethem
- Laboratory of Experimental Gastroenterology, Université Libre de Bruxelles, Route de Lennik 808, 1070 Brussels, Belgium
- Department of Gastroenterology, Hepatology and Digestive Oncology, HUB Bordet Erasme Hospital, Université Libre de Bruxelles, Route de Lennik 808, 1070 Brussels, Belgium
| |
Collapse
|
13
|
Gonzalez-Valero A, Reeves AG, Page ACS, Moon PJ, Miller E, Coulonval K, Crossley SWM, Xie X, He D, Musacchio PZ, Christian AH, McKenna JM, Lewis RA, Fang E, Dovala D, Lu Y, McGregor LM, Schirle M, Tallarico JA, Roger PP, Toste FD, Chang CJ. An Activity-Based Oxaziridine Platform for Identifying and Developing Covalent Ligands for Functional Allosteric Methionine Sites: Redox-Dependent Inhibition of Cyclin-Dependent Kinase 4. J Am Chem Soc 2022; 144:22890-22901. [PMID: 36484997 PMCID: PMC10124963 DOI: 10.1021/jacs.2c04039] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Activity-based protein profiling (ABPP) is a versatile strategy for identifying and characterizing functional protein sites and compounds for therapeutic development. However, the vast majority of ABPP methods for covalent drug discovery target highly nucleophilic amino acids such as cysteine or lysine. Here, we report a methionine-directed ABPP platform using Redox-Activated Chemical Tagging (ReACT), which leverages a biomimetic oxidative ligation strategy for selective methionine modification. Application of ReACT to oncoprotein cyclin-dependent kinase 4 (CDK4) as a representative high-value drug target identified three new ligandable methionine sites. We then synthesized a methionine-targeting covalent ligand library bearing a diverse array of heterocyclic, heteroatom, and stereochemically rich substituents. ABPP screening of this focused library identified 1oxF11 as a covalent modifier of CDK4 at an allosteric M169 site. This compound inhibited kinase activity in a dose-dependent manner on purified protein and in breast cancer cells. Further investigation of 1oxF11 found prominent cation-π and H-bonding interactions stabilizing the binding of this fragment at the M169 site. Quantitative mass-spectrometry studies validated 1oxF11 ligation of CDK4 in breast cancer cell lysates. Further biochemical analyses revealed cross-talk between M169 oxidation and T172 phosphorylation, where M169 oxidation prevented phosphorylation of the activating T172 site on CDK4 and blocked cell cycle progression. By identifying a new mechanism for allosteric methionine redox regulation on CDK4 and developing a unique modality for its therapeutic intervention, this work showcases a generalizable platform that provides a starting point for engaging in broader chemoproteomics and protein ligand discovery efforts to find and target previously undruggable methionine sites.
Collapse
Affiliation(s)
- Angel Gonzalez-Valero
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Audrey G. Reeves
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Annika C. S. Page
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Patrick J. Moon
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Edward Miller
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Katia Coulonval
- Faculté de Médecine, Institute of Interdisciplinary Research, Université Libre de Bruxelles, Campus Erasme, Brussels 1070, Belgium
| | - Steven W. M. Crossley
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Xiao Xie
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Dan He
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Patricia Z. Musacchio
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Alec H. Christian
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Jeffrey M. McKenna
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts 02139, United States
| | - Richard A. Lewis
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts 02139, United States
| | - Eric Fang
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts 02139, United States
| | - Dustin Dovala
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts 02139, United States
| | - Yipin Lu
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts 02139, United States
| | - Lynn M. McGregor
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts 02139, United States
| | - Markus Schirle
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts 02139, United States
| | - John A. Tallarico
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts 02139, United States
| | - Pierre P. Roger
- Faculté de Médecine, Institute of Interdisciplinary Research, Université Libre de Bruxelles, Campus Erasme, Brussels 1070, Belgium
| | - F. Dean Toste
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Christopher J. Chang
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Department of Molecular and Cell Biology, University of California, Berkeley, California 94720, United States
| |
Collapse
|
14
|
Li ZM, Liu G, Gao Y, Zhao MG. Targeting CDK7 in oncology: The avenue forward. Pharmacol Ther 2022; 240:108229. [PMID: 35700828 DOI: 10.1016/j.pharmthera.2022.108229] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/02/2022] [Accepted: 06/07/2022] [Indexed: 12/14/2022]
Abstract
Cyclin-dependent kinase (CDK) 7 is best characterized for the ability to regulate biological processes, including the cell cycle and gene transcription. Abnormal CDK7 activity is observed in various tumours and represents a driving force for tumourigenesis. Therefore, CDK7 may be an appealing target for cancer treatment. Whereas, the enthusiasm for CDK7-targeted therapeutic strategy is mitigated due to the widely possessed belief that this protein is essential for normal cells. Indeed, the fact confronts the consensus. This is the first review to introduce the role of CDK7 in pan-cancers via a combined analysis of comprehensive gene information and (pre)clinical research results. We also discuss the recent advances in protein structure and summarize the understanding of mechanisms underlying CDK7 function. These endeavours highlight the pivotal roles of CDK7 in tumours and may contribute to the development of effective CDK7 inhibitors within the strategy of structure-based drug discovery for cancer therapy.
Collapse
Affiliation(s)
- Zhi-Mei Li
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, PR China
| | - Guan Liu
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xinsi Road 1, Xi'an 710038, Shaanxi, PR China
| | - Ya Gao
- State Key Laboratory of Esophageal Cancer Prevention and Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, Henan, PR China.
| | - Ming-Gao Zhao
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, PR China; Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xinsi Road 1, Xi'an 710038, Shaanxi, PR China.
| |
Collapse
|
15
|
Crystal structure of active CDK4-cyclin D and mechanistic basis for abemaciclib efficacy. NPJ Breast Cancer 2022; 8:126. [PMID: 36446794 PMCID: PMC9709041 DOI: 10.1038/s41523-022-00494-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 11/11/2022] [Indexed: 11/30/2022] Open
Abstract
Despite the biological and therapeutic relevance of CDK4/6 for the treatment of HR+, HER2- advanced breast cancer, the detailed mode of action of CDK4/6 inhibitors is not completely understood. Of particular interest, phosphorylation of CDK4 at T172 (pT172) is critical for generating the active conformation, yet no such crystal structure has been reported to date. We describe here the x-ray structure of active CDK4-cyclin D3 bound to the CDK4/6 inhibitor abemaciclib and discuss the key aspects of the catalytically-competent complex. Furthermore, the effect of CDK4/6 inhibitors on CDK4 T172 phosphorylation has not been explored, despite its role as a potential biomarker of CDK4/6 inhibitor response. We show mechanistically that CDK4/6i stabilize primed (pT172) CDK4-cyclin D complex and selectively displace p21 in responsive tumor cells. Stabilization of active CDK4-cyclin D1 complex can lead to pathway reactivation following alternate dosing regimen. Consequently, sustained binding of abemaciclib to CDK4 leads to potent cell cycle inhibition in breast cancer cell lines and prevents rebound activation of downstream signaling. Overall, our study provides key insights demonstrating that prolonged treatment with CDK4/6 inhibitors and composition of the CDK4/6-cyclin D complex are both critical determinants of abemaciclib efficacy, with implications for this class of anticancer therapy.
Collapse
|
16
|
Therapeutic potential of CDK4/6 inhibitors in renal cell carcinoma. Nat Rev Urol 2022; 19:305-320. [PMID: 35264774 DOI: 10.1038/s41585-022-00571-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2022] [Indexed: 12/12/2022]
Abstract
The treatment of advanced and metastatic kidney cancer has entered a golden era with the addition of more therapeutic options, improved survival and new targeted therapies. Tyrosine kinase inhibitors, mammalian target of rapamycin (mTOR) inhibitors and immune checkpoint blockade have all been shown to be promising strategies in the treatment of renal cell carcinoma (RCC). However, little is known about the best therapeutic approach for individual patients with RCC and how to combat therapeutic resistance. Cancers, including RCC, rely on sustained replicative potential. The cyclin-dependent kinases CDK4 and CDK6 are involved in cell-cycle regulation with additional roles in metabolism, immunogenicity and antitumour immune response. Inhibitors of CDK4 and CDK6 are now commonly used as approved and investigative treatments in breast cancer, as well as several other tumours. Furthermore, CDK4/6 inhibitors have been shown to work synergistically with other kinase inhibitors, including mTOR inhibitors, as well as with immune checkpoint inhibitors in preclinical cancer models. The effect of CDK4/6 inhibitors in kidney cancer is relatively understudied compared with other cancers, but the preclinical studies available are promising. Collectively, growing evidence suggests that targeting CDK4 and CDK6 in kidney cancer, alone and in combination with current therapeutics including mTOR and immune checkpoint inhibitors, might have therapeutic benefit and should be further explored.
Collapse
|
17
|
OUP accepted manuscript. Carcinogenesis 2022; 43:779-786. [DOI: 10.1093/carcin/bgac036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 04/04/2022] [Accepted: 04/21/2022] [Indexed: 11/14/2022] Open
|
18
|
Coulonval K, Vercruysse V, Paternot S, Pita JM, Corman R, Raspé E, Roger PP. Monoclonal antibodies to activated CDK4: use to investigate normal and cancerous cell cycle regulation and involvement of phosphorylations of p21 and p27. Cell Cycle 2021; 21:12-32. [PMID: 34913830 PMCID: PMC8837260 DOI: 10.1080/15384101.2021.1984663] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Cyclin-dependent kinase 4 (CDK4) is a master integrator that couples mitogenic/oncogenic signaling with the cell division cycle. It is deregulated in most cancers and inhibitors of CDK4 have become standard of care drugs for metastatic estrogen-receptor positive breast cancers and are being evaluated in a variety of other cancers. We previously characterized the T-loop phosphorylation at T172 of CDK4 as the highly regulated step that determines the activity of cyclin D-CDK4 complexes. Moreover we demonstrated that the highly variable detection of T172-phosphorylated CDK4 signals the presence or absence of the active CDK4 targeted by the CDK4/6 inhibitory drugs, which predicts the tumor cell sensitivity to these drugs including palbociclib. To date, the phosphorylation of CDK4 has been very poorly studied because only few biochemical techniques and reagents are available for it. In addition, the available ones including 2D-IEF separation of CDK4 modified forms are considered too tedious. The present report describes the generation, selection and characterization of the first monoclonal antibodies that specifically recognize the active CDK4 phosphorylated on its T172 residue. One key to this success was the immunization with a long phosphopeptide corresponding to the complete activation segment of CDK4. These monoclonal antibodies specifically recognize T172-phosphorylated CDK4 in a variety of assays, including western blotting, immunoprecipitation and, as a capture antibody, a sensitive ELISA from cell lysates. The specific immunoprecipitation of T172-phosphorylated CDK4 allowed to clarify the involvement of phosphorylations of co-immunoprecipitated p21 and p27, showing a privileged interaction of T172-phosphorylated CDK4 with S130-phosphorylated p21 and S10-phosphorylated p27.
Abbreviations:
2D: two-dimensional; CAK: CDK-activating kinase; CDK: cyclin-dependent kinase; HAT: Hypoxanthine-Aminopterin-Thymidine; FBS: fetal bovine serum; IP: immunoprecipitation; ID: immunodetection; mAb: monoclonal antibody; PAGE: polyacrylamide gel electrophoresis; PBS: phosphate buffer saline; pRb: retinoblastoma susceptibility protein; SDS: sodium dodecyl sulfate; DTT: dithiotreitol; TET: tetracyclin repressor; Avi: Avi tag; TEV: tobacco etch virus cleavage site; EGFP: enhanced green fluorescent protein; BirA: bifunctional protein biotin ligase BirA; IRES: internal ribosome entry site; HIS: poly-HIS purification tag; DELFIA: dissociation-enhanced lanthanide fluorescent immunoassay; 3-MBPP1: 1-(1,1-dimethylethyl)-3[(3-methylphenyl) methyl]-1H-pyrazolo[3,4-d] pyrimidin-4-amine; BSA: bovine serum albumin; ECL: Enhanced chemiluminescence
Collapse
Affiliation(s)
- Katia Coulonval
- Institute of Interdisciplinary Research (Iribhm) and ULB-Cancer Research Center (U-crc), Université Libre de Bruxelles, Campus Erasme, Brussels, Belgium
| | - Vincent Vercruysse
- Institute of Interdisciplinary Research (Iribhm) and ULB-Cancer Research Center (U-crc), Université Libre de Bruxelles, Campus Erasme, Brussels, Belgium
| | - Sabine Paternot
- Institute of Interdisciplinary Research (Iribhm) and ULB-Cancer Research Center (U-crc), Université Libre de Bruxelles, Campus Erasme, Brussels, Belgium
| | - Jaime M Pita
- Institute of Interdisciplinary Research (Iribhm) and ULB-Cancer Research Center (U-crc), Université Libre de Bruxelles, Campus Erasme, Brussels, Belgium
| | - Robert Corman
- Kaneka Eurogentec, Liège Science Park, Seraing, Belgium
| | - Eric Raspé
- Institute of Interdisciplinary Research (Iribhm) and ULB-Cancer Research Center (U-crc), Université Libre de Bruxelles, Campus Erasme, Brussels, Belgium
| | - Pierre P Roger
- Institute of Interdisciplinary Research (Iribhm) and ULB-Cancer Research Center (U-crc), Université Libre de Bruxelles, Campus Erasme, Brussels, Belgium
| |
Collapse
|
19
|
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.
Collapse
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
| |
Collapse
|
20
|
The Involvement of Ubiquitination Machinery in Cell Cycle Regulation and Cancer Progression. Int J Mol Sci 2021; 22:ijms22115754. [PMID: 34072267 PMCID: PMC8198665 DOI: 10.3390/ijms22115754] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/12/2021] [Accepted: 05/26/2021] [Indexed: 02/07/2023] Open
Abstract
The cell cycle is a collection of events by which cellular components such as genetic materials and cytoplasmic components are accurately divided into two daughter cells. The cell cycle transition is primarily driven by the activation of cyclin-dependent kinases (CDKs), which activities are regulated by the ubiquitin-mediated proteolysis of key regulators such as cyclins, CDK inhibitors (CKIs), other kinases and phosphatases. Thus, the ubiquitin-proteasome system (UPS) plays a pivotal role in the regulation of the cell cycle progression via recognition, interaction, and ubiquitination or deubiquitination of key proteins. The illegitimate degradation of tumor suppressor or abnormally high accumulation of oncoproteins often results in deregulation of cell proliferation, genomic instability, and cancer occurrence. In this review, we demonstrate the diversity and complexity of the regulation of UPS machinery of the cell cycle. A profound understanding of the ubiquitination machinery will provide new insights into the regulation of the cell cycle transition, cancer treatment, and the development of anti-cancer drugs.
Collapse
|
21
|
Soni P, Ghufran MS, Olakkaran S, Puttaswamygowda GH, Duddukuri GR, Kanade SR. Epigenetic alterations induced by aflatoxin B 1: An in vitro and in vivo approach with emphasis on enhancer of zeste homologue-2/p21 axis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 762:143175. [PMID: 33131875 DOI: 10.1016/j.scitotenv.2020.143175] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/21/2020] [Accepted: 10/14/2020] [Indexed: 06/11/2023]
Abstract
The potent environmental toxicant aflatoxin B1 (AFB1), is a group I carcinogen reported to induce the expression of many cancer associated proteins. Epigenetic alterations such as DNA methylation and histone modifications play vital role in AFB1-mediated carcinogenesis. These epigenetic modifications may result in the recruitment of specific proteins and transcription factors to the promoter region and regulate gene expression. Here we show that AFB1, at lower concentrations (100 and 1000 nM) induced proliferation in L-132 and HaCaT cells with activation of the Akt pathway, which ultimately steered abnormal proliferation and transmission of survival signals. We demonstrated a significant reduction in the expression of p21 with a remarkable increase in the expression of cyclin D1 that correlated with increased methylation of CpG dinucleotides in p21 proximal promoter, while cyclin D1 promoter remained unmethylated. The chromatin immunoprecipitation results revealed the enrichment of DNMT3a and H3K27me3 repressive marks on the p21 proximal promoter where EZH2 mediated H3K27me3 mark enhanced the binding of DNMT3a at the promoter and further contributed to the transcriptional inactivation. The overall study provided the novel information on the impact of AFB1 on p21 inactivation via EZH2 and promoter methylation which is known to be a vital process in proliferation. Furthermore, AFB1 induced the expression of EZH2 analogue protein E(z), cyclin D1 analogue cyclin D and decreased the expression of p21 analogue Dacapo in Drosophila melanogaster. Interestingly, the aggressiveness in their expression upon re-exposure in successive generations suggested first hand perspectives on multigenerational epigenetic memory.
Collapse
Affiliation(s)
- Priyanka Soni
- Department of Biochemistry and Molecular Biology, School of Biological Sciences, Central University of Kerala, Tejaswini Hills, Periye, Kasargod 671316, Kerala, India
| | - Md Sajid Ghufran
- Department of Biochemistry and Molecular Biology, School of Biological Sciences, Central University of Kerala, Tejaswini Hills, Periye, Kasargod 671316, Kerala, India
| | - Shilpa Olakkaran
- Department of Zoology, School of Biological Sciences, Central University of Kerala, Tejaswini Hills, Periye, Kasargod 671316, Kerala, India
| | | | - Govinda Rao Duddukuri
- Department of Biochemistry and Molecular Biology, School of Biological Sciences, Central University of Kerala, Tejaswini Hills, Periye, Kasargod 671316, Kerala, India
| | - Santosh R Kanade
- Department of Plant Science, School of Life Science, University of Hyderabad, Prof. C. R. Rao Road Gachibowli, Hyderabad 500046, India.
| |
Collapse
|
22
|
Zhang H, Zeng L, Liu Q, Jin G, Zhang J, Li Z, Xu Y, Tian H, Deng S, Shi Q, Huang X. CVB3 VP1 interacts with MAT1 to inhibit cell proliferation by interfering with Cdk-activating kinase complex activity in CVB3-induced acute pancreatitis. PLoS Pathog 2021; 17:e1008992. [PMID: 33556114 PMCID: PMC7895353 DOI: 10.1371/journal.ppat.1008992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 02/19/2021] [Accepted: 01/08/2021] [Indexed: 01/09/2023] Open
Abstract
Coxsackievirus B3 (CVB3) belongs to the genus Enterovirus of the family Picornaviridae and can cause acute acinar pancreatitis in adults. However, the molecular mechanisms of pathogenesis underlying CVB3-induced acute pancreatitis have remained unclear. In this study, we discovered that CVB3 capsid protein VP1 inhibited pancreatic cell proliferation and exerted strong cytopathic effects on HPAC cells. Through yeast two-hybrid, co-immunoprecipitation, and confocal microscopy, we show that Menage a trois 1 (MAT1), a subunit of the Cdk-Activating Kinase (CAK) complex involved in cell proliferation and transcription, is a novel interaction protein with CVB3 VP1. Moreover, CVB3 VP1 inhibited MAT1 accumulation and localization, thus interfering with its interaction with CDK7. Furthermore, CVB3 VP1 could suppress CAK complex enzymic phosphorylation activity towards RNA Pol II and CDK4/6, direct substrates of CAK. VP1 also suppresses phosphorylation of retinoblastoma protein (pRb), an indirect CAK substrate, especially at phospho-pRb Ser780 and phospho-pRb Ser807/811 residues, which are associated with cell proliferation. Finally, we present evidence using deletion mutants that the C-terminal domain (VP1-D8, 768-859aa) is the minimal VP1 region required for its interaction with MAT1, and furthermore, VP1-D8 alone was sufficient to arrest cells in G1/S phase as observed during CVB3 infection. Taken together, we demonstrate that CVB3 VP1 can inhibit CAK complex assembly and activity through direct interaction with MAT1, to block MAT1-mediated CAK-CDK4/6-Rb signaling, and ultimately suppress cell proliferation in pancreatic cells. These findings substantially extend our basic understanding of CVB3-mediated pancreatitis, providing strong candidates for strategic therapeutic targeting.
Collapse
Affiliation(s)
- Hongxia Zhang
- The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Lingbing Zeng
- The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Qiong Liu
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Guilin Jin
- The Affiliated Hospital of JiangXi university of TCM, Nanchang, China
| | - Jieyu Zhang
- Fuzhou Medical School of Nanchang University, Fuzhou, China
| | - Zengbin Li
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Yilian Xu
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Huizhen Tian
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Shanshan Deng
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Qiaofa Shi
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Xiaotian Huang
- The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
- * E-mail:
| |
Collapse
|
23
|
Abstract
Cyclin-dependent kinase 7 (CDK7), along with cyclin H and MAT1, forms the CDK-activating complex (CAK), which directs progression through the cell cycle via T-loop phosphorylation of cell cycle CDKs. CAK is also a component of the general transcription factor, TFIIH. CDK7-mediated phosphorylation of RNA polymerase II (Pol II) at active gene promoters permits transcription. Cell cycle dysregulation is an established hallmark of cancer, and aberrant control of transcriptional processes, through diverse mechanisms, is also common in many cancers. Furthermore, CDK7 levels are elevated in a number of cancer types and are associated with clinical outcomes, suggestive of greater dependence on CDK7 activity, compared with normal tissues. These findings identify CDK7 as a cancer therapeutic target, and several recent publications report selective CDK7 inhibitors (CDK7i) with activity against diverse cancer types. Preclinical studies have shown that CDK7i cause cell cycle arrest, apoptosis and repression of transcription, particularly of super-enhancer-associated genes in cancer, and have demonstrated their potential for overcoming resistance to cancer treatments. Moreover, combinations of CDK7i with other targeted cancer therapies, including BET inhibitors, BCL2 inhibitors and hormone therapies, have shown efficacy in model systems. Four CDK7i, ICEC0942 (CT7001), SY-1365, SY-5609 and LY3405105, have now progressed to Phase I/II clinical trials. Here we describe the work that has led to the development of selective CDK7i, the current status of the most advanced clinical candidates, and discuss their potential importance as cancer therapeutics, both as monotherapies and in combination settings. ClinicalTrials.gov Identifiers: NCT03363893; NCT03134638; NCT04247126; NCT03770494.
Collapse
|
24
|
Chen L, Wang X, Cheng H, Zhang W, Liu Y, Zeng W, Yu L, Huang C, Liu G. Cyclin Y binds and activates CDK4 to promote the G1/S phase transition in hepatocellular carcinoma cells via Rb signaling. Biochem Biophys Res Commun 2020; 533:1162-1169. [PMID: 33039146 DOI: 10.1016/j.bbrc.2020.09.127] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 09/26/2020] [Indexed: 02/09/2023]
Abstract
Inactivation of Rb is a major event in the development of hepatocellular carcinoma (HCC). The activity of CDK4, determined by T172 phosphorylation, correlates with the onset of RB phosphorylation and G1/S cell cycle transition. However, the regulation of CDK4 activation and of the Rb pathway in HCC remain unclear. Here, we report that cyclin Y, a novel member of the cyclin family, is a potential regulator of the Rb pathway. We demonstrate that the Cyclin Y protein was overexpressed in human HCC tissues and that it was associated with poor patient prognosis. Cyclin Y could regulate the G1/S phase transition in human HCC cell lines. We found that CDK4 can bind to Cyclin Y in vitro. Furthermore, the accumulation of Cyclin Y could activate CDK4 through T172 phosphorylation of CDK4, inactivate Rb with increasing Rb phosphorylation, and enable the expression of E2F target genes such as CDK2 and Cyclin A. Thus, our findings suggest that Cyclin Y plays a role in the G1/S phase transition of HCC cells via Cyclin Y/CDK4/Rb signaling and that Cyclin Y could be used as a potential prognostic biomarker in HCC.
Collapse
Affiliation(s)
- Lei Chen
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Xiang Wang
- The State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Hanghang Cheng
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Weidi Zhang
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Yufeng Liu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Wenjiao Zeng
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Long Yu
- The State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Cheng Huang
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Guoyuan Liu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China.
| |
Collapse
|
25
|
The Greatwall kinase safeguards the genome integrity by affecting the kinome activity in mitosis. Oncogene 2020; 39:6816-6840. [PMID: 32978522 PMCID: PMC7605441 DOI: 10.1038/s41388-020-01470-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/21/2020] [Accepted: 09/10/2020] [Indexed: 12/19/2022]
Abstract
Progression through mitosis is balanced by the timely regulation of phosphorylation and dephosphorylation events ensuring the correct segregation of chromosomes before cytokinesis. This balance is regulated by the opposing actions of CDK1 and PP2A, as well as the Greatwall kinase/MASTL. MASTL is commonly overexpressed in cancer, which makes it a potential therapeutic anticancer target. Loss of Mastl induces multiple chromosomal errors that lead to the accumulation of micronuclei and multilobulated cells in mitosis. Our analyses revealed that loss of Mastl leads to chromosome breaks and abnormalities impairing correct segregation. Phospho-proteomic data for Mastl knockout cells revealed alterations in proteins implicated in multiple processes during mitosis including double-strand DNA damage repair. In silico prediction of the kinases with affected activity unveiled NEK2 to be regulated in the absence of Mastl. We uncovered that, RAD51AP1, involved in regulation of homologous recombination, is phosphorylated by NEK2 and CDK1 but also efficiently dephosphorylated by PP2A/B55. Our results suggest that MastlKO disturbs the equilibrium of the mitotic phosphoproteome that leads to the disruption of DNA damage repair and triggers an accumulation of chromosome breaks even in noncancerous cells.
Collapse
|
26
|
Pennycook BR, Barr AR. Restriction point regulation at the crossroads between quiescence and cell proliferation. FEBS Lett 2020; 594:2046-2060. [PMID: 32564372 DOI: 10.1002/1873-3468.13867] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/08/2020] [Accepted: 06/10/2020] [Indexed: 02/11/2024]
Abstract
The coordination of cell proliferation with reversible cell cycle exit into quiescence is crucial for the development of multicellular organisms and for tissue homeostasis in the adult. The decision between quiescence and proliferation occurs at the restriction point, which is widely thought to be located in the G1 phase of the cell cycle, when cells integrate accumulated extracellular and intracellular signals to drive this binary cellular decision. On the molecular level, decision-making is exerted through the activation of cyclin-dependent kinases (CDKs). CDKs phosphorylate the retinoblastoma (Rb) transcriptional repressor to regulate the expression of cell cycle genes. Recently, the classical view of restriction point regulation has been challenged. Here, we review the latest findings on the activation of CDKs, Rb phosphorylation and the nature and position of the restriction point within the cell cycle.
Collapse
Affiliation(s)
- Betheney R Pennycook
- Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, London, UK
- MRC London Institute of Medical Sciences, Imperial College London, London, UK
| | - Alexis R Barr
- Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, London, UK
- MRC London Institute of Medical Sciences, Imperial College London, London, UK
| |
Collapse
|
27
|
Rein T. Peptidylprolylisomerases, Protein Folders, or Scaffolders? The Example of FKBP51 and FKBP52. Bioessays 2020; 42:e1900250. [DOI: 10.1002/bies.201900250] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/12/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Theo Rein
- Department of Translational Science in Psychiatry, MunichMax Planck Institute of Psychiatry Munich 80804 Germany
| |
Collapse
|
28
|
Ruiz-Estevez M, Staats J, Paatela E, Munson D, Katoku-Kikyo N, Yuan C, Asakura Y, Hostager R, Kobayashi H, Asakura A, Kikyo N. Promotion of Myoblast Differentiation by Fkbp5 via Cdk4 Isomerization. Cell Rep 2019; 25:2537-2551.e8. [PMID: 30485818 PMCID: PMC6350781 DOI: 10.1016/j.celrep.2018.11.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 09/29/2018] [Accepted: 10/31/2018] [Indexed: 01/10/2023] Open
Abstract
Fkbp5 is a widely expressed peptidyl prolyl isomerase that serves as a molecular chaperone through conformational changes of binding partners. Although it regulates diverse protein functions, little is known about its roles in myogenesis. We found here that Fkbp5 plays critical roles in myoblast differentiation through two mechanisms. First, it sequesters Cdk4 within the Hsp90 storage complex and prevents the formation of the cyclin D1-Cdk4 complex, which is a major inhibitor of differentiation. Second, Fkbp5 promotes cis-trans isomerization of the Thr172-Pro173 peptide bond in Cdk4 and inhibits phosphorylation of Thr172, an essential step for Cdk4 activation. Consistent with these in vitro findings, muscle regeneration is delayed in Fkbp5−/− mice. The related protein Fkbp4 also sequesters Cdk4 within the Hsp90 complex but does not isomerize Cdk4 or induce Thr173 phosphorylation despite its highly similar sequence. This study demonstrates protein isomerization as a critical regulatory mechanism of myogenesis by targeting Cdk4.
Collapse
Affiliation(s)
- Mercedes Ruiz-Estevez
- Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA; Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA
| | - James Staats
- Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA; Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA
| | - Ellen Paatela
- Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA; Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA
| | - Dane Munson
- Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA
| | - Nobuko Katoku-Kikyo
- Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA; Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA
| | - Ce Yuan
- Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA; Bioinformatics and Computational Biology Graduate Program, University of Minnesota, Minneapolis, MN 55455, USA
| | - Yoko Asakura
- Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA; Department of Neurology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Reilly Hostager
- Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA
| | - Hiroshi Kobayashi
- Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA; Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA
| | - Atsushi Asakura
- Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA; Department of Neurology, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Nobuaki Kikyo
- Stem Cell Institute, University of Minnesota, Minneapolis, MN 55455, USA; Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA.
| |
Collapse
|
29
|
Recent advances in the development of cyclin-dependent kinase 7 inhibitors. Eur J Med Chem 2019; 183:111641. [DOI: 10.1016/j.ejmech.2019.111641] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 08/20/2019] [Accepted: 08/21/2019] [Indexed: 02/06/2023]
|
30
|
Chen L, Wang Y, Jiang W, Ni R, Wang Y, Ni S. CDK14 involvement in proliferation migration and invasion of esophageal cancer. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:681. [PMID: 31930082 DOI: 10.21037/atm.2019.11.105] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background CDK14 has significant involvement in tumorigenesis of cancers including hepatocellular carcinoma, gastric carcinoma and breast cancer. In esophageal cancer, CDK14 is useful as a prognostic marker and as a predictor of response to chemotherapy. However, the exact mechanism of CDK14 n chemotherapy for esophageal squamous cell carcinoma (ESCC) has not been explored. Methods Western blots and immunohistochemistry (IHC) analysis were performed to analyse the expression of CDK14 in ESCC. Co-immunoprecipitation and immunofluorescence assays were used to explore the mechanism of CDK14 involvement in ESCC. Colony formation assays and proliferation assays were used to investigate the function of CDK14 in ESCC. At last, we constructed two truncated mutants of CDK14 by the PCR technology to research the functional structural domain. Results Western blots and IHC analysis showed that CDK14 expression was higher n tumor tissues and cell lines than that in normal tissues. IHC staining revealed that CDK14 positively correlated with clinical pathological variables of tumor size (P=0.001), tumor grade (P=0.004), Ki-67 (P=0.012) and survival (P=0.000). Immunoprecipitation and immunofluorescence assays revealed that CDK-activating kinase (CAK), namely CDK7/CCNH complex physically interacted and was collocated with CDK14 in the cell nucleus. This direct interaction increased CDK14 phosphorylation and inhibited Rb function through phosphorylation. In vitro starvation and refeeding assays demonstrated that CDK14 expression was related to proliferation of ESCC cells. Overexpression of CDK14 in Eca109 cells increased colony formation and reduced sensitivity to cisplatin. Overexpressing CDK7 with CDK14 strengthened these effects, demonstrating that CDK7 was a major component in CDK14 activation. Conclusions Expression of CDK14 worsened the effects of cisplatin chemotherapy by promoting ESCC proliferation.
Collapse
Affiliation(s)
- Lingling Chen
- Department of Gastroenterology, Huashan Hospital North, Fudan University, Shanghai 201907, China
| | - Yayun Wang
- Department of Emergency Medicine, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Wenyan Jiang
- Department of Respiratory, Nantong First People Hospital, Nantong 226001, China
| | - Runzhou Ni
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Yuchan Wang
- Department of Pathogenic Biology, Medical College, Nantong University, Nantong 226001, China
| | - Sujie Ni
- Department of Medical Oncology, Affiliated Hospital of Nantong University, Nantong 226001, China
| |
Collapse
|
31
|
Li BB, Wang B, Zhu CM, Tang D, Pang J, Zhao J, Sun CH, Qiu MJ, Qian ZR. Cyclin-dependent kinase 7 inhibitor THZ1 in cancer therapy. Chronic Dis Transl Med 2019; 5:155-169. [PMID: 31891127 PMCID: PMC6926117 DOI: 10.1016/j.cdtm.2019.08.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Indexed: 12/11/2022] Open
Abstract
Current cancer therapies have encountered adverse response due to poor therapeutic efficiency, severe side effects and acquired resistance to multiple drugs. Thus, there are urgent needs for finding new cancer-targeted pharmacological strategies. In this review, we summarized the current understanding with THZ1, a covalent inhibitor of cyclin-dependent kinase 7 (CDK7), which demonstrated promising anti-tumor activity against different cancer types. By introducing the anti-tumor behaviors and the potential targets for different cancers, this review aims to provide more effective approaches to CDK7 inhibitor-based therapeutic agents and deeper insight into the diverse tumor proliferation mechanisms.
Collapse
Affiliation(s)
- Bin-Bin Li
- School of Biological Sciences, Nanyang Technological University, Singapore 639798, Singapore
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518107, China
| | - Bo Wang
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518107, China
| | - Cheng-Ming Zhu
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518107, China
| | - Di Tang
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518107, China
| | - Jun Pang
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518107, China
| | - Jing Zhao
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518107, China
| | - Chun-Hui Sun
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518107, China
- Equipe Communication Intercellulaire et Infections Microbiennes, Centre de Recherche Interdisciplinaire en Biologie (CIRB), College de France, Paris 75005, France
| | - Miao-Juan Qiu
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518107, China
| | - Zhi-Rong Qian
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong 518107, China
| |
Collapse
|
32
|
Olson CM, Liang Y, Leggett A, Park WD, Li L, Mills CE, Elsarrag SZ, Ficarro SB, Zhang T, Düster R, Geyer M, Sim T, Marto JA, Sorger PK, Westover KD, Lin CY, Kwiatkowski N, Gray NS. Development of a Selective CDK7 Covalent Inhibitor Reveals Predominant Cell-Cycle Phenotype. Cell Chem Biol 2019; 26:792-803.e10. [PMID: 30905681 DOI: 10.1016/j.chembiol.2019.02.012] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 12/19/2018] [Accepted: 02/18/2019] [Indexed: 02/06/2023]
Abstract
Cyclin-dependent kinase 7 (CDK7) regulates both cell cycle and transcription, but its precise role remains elusive. We previously described THZ1, a CDK7 inhibitor, which dramatically inhibits superenhancer-associated gene expression. However, potent CDK12/13 off-target activity obscured CDK7s contribution to this phenotype. Here, we describe the discovery of a highly selective covalent CDK7 inhibitor. YKL-5-124 causes arrest at the G1/S transition and inhibition of E2F-driven gene expression; these effects are rescued by a CDK7 mutant unable to covalently engage YKL-5-124, demonstrating on-target specificity. Unlike THZ1, treatment with YKL-5-124 resulted in no change to RNA polymerase II C-terminal domain phosphorylation; however, inhibition could be reconstituted by combining YKL-5-124 and THZ531, a selective CDK12/13 inhibitor, revealing potential redundancies in CDK control of gene transcription. These findings highlight the importance of CDK7/12/13 polypharmacology for anti-cancer activity of THZ1 and posit that selective inhibition of CDK7 may be useful for treatment of cancers marked by E2F misregulation.
Collapse
Affiliation(s)
- Calla M Olson
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biology Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA; Therapeutic Innovation Center (THINC@BCM), Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; Verna & Marrs McLean Department of Biochemistry & Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Yanke Liang
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biology Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA
| | - Alan Leggett
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biology Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA
| | - Woojun D Park
- Department of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Lianbo Li
- Departments of Biochemistry and Radiation Oncology, The University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390, USA
| | - Caitlin E Mills
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston MA 02115, USA
| | - Selma Z Elsarrag
- Department of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Scott B Ficarro
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biology Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA; Blais Proteomics Center, Dana-Farber Cancer Institute, Boston, MA 02115, USA
| | - Tinghu Zhang
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biology Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA
| | - Robert Düster
- Institute of Structural Biology, University of Bonn, Sigmund-Freud-Strasse 25, 53127 Bonn, Germany
| | - Matthias Geyer
- Institute of Structural Biology, University of Bonn, Sigmund-Freud-Strasse 25, 53127 Bonn, Germany
| | - Taebo Sim
- Chemical Kinomics Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea; KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 136-701, Korea
| | - Jarrod A Marto
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biology Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA; Blais Proteomics Center, Dana-Farber Cancer Institute, Boston, MA 02115, USA
| | - Peter K Sorger
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston MA 02115, USA
| | - Ken D Westover
- Departments of Biochemistry and Radiation Oncology, The University of Texas Southwestern Medical Center at Dallas, Dallas, TX 75390, USA
| | - Charles Y Lin
- Therapeutic Innovation Center (THINC@BCM), Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; Verna & Marrs McLean Department of Biochemistry & Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; Department of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Nicholas Kwiatkowski
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biology Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA.
| | - Nathanael S Gray
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biology Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA.
| |
Collapse
|
33
|
Wei Z, Li D, Zhu L, Yang L, Chen C, Bai C, Li G. Omega 3 polyunsaturated fatty acids inhibit cell proliferation by regulating cell cycle in fad3b transgenic mouse embryonic stem cells. Lipids Health Dis 2018; 17:210. [PMID: 30193583 PMCID: PMC6129006 DOI: 10.1186/s12944-018-0862-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 08/31/2018] [Indexed: 01/13/2023] Open
Abstract
Background The consumption of omega 3 polyunsaturated fatty acids (PUFAs) is important for human health and is closely associated with cell proliferation and differentiation. This study aimed to investigate the influence of omega 3 PUFAs on embryonic stem cell (ESC) proliferation and explore potential mechanisms that mediate these effects. Methods In this study, we isolated ESCs from fad3b-expressing transgenic mice. We detected the fatty-acid composition of ESCs using gas chromatography-mass spectroscopy, analyzed cell-cycle phases using flow cytometry, and detected gene expression using real-time polymerase chain reaction (PCR) and western blots. Results The amount of omega 3 PUFAs significantly increased in fad3b versus control ESCs. However, the growth of fad3b ESCs was slower than that of control cells, and most fad3b ESCs were in a prolonged G0/G1 phase after being passaged for 18 h. Therefore, we hypothesized that fad3b expression inhibited the cell cycle in ESCs by increasing the expression of P21, which then decreased the expression of cyclin-dependent kinase 4 (Cdk4). We found that pretreatment of fad3b ESCs with PD0325901, a P21 inhibitor, clearly attenuated the inhibitory effects of P21 on Cdk4, and resumed the cell cycle. Conclusions Expression of the fad3b gene in ESCs increased the omega 3 PUFA content, which inhibited cell proliferation by prolonging the G1 phase but did not arrest the G0-to-G1 or G1-to-S transitions. The prolonged G1 phase in fad3b ESCs was probably induced by downregulation of Cdk4 expression via p21 upregulation. These results suggest that accumulation of omega 3 PUFAs in vivo may beneficially affect ESC differentiation and that fad3b ESCs may be a useful tool for investigating related mechanisms. Electronic supplementary material The online version of this article (10.1186/s12944-018-0862-x) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Zhuying Wei
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.,College of Life Science, Inner Mongolia University, Hohhot, 010070, China
| | - Dongfang Li
- Inner Mongolia People's Hospital, Hohhot, 010017, China
| | - Lin Zhu
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Lei Yang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Chen Chen
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China
| | - Chunling Bai
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China.,College of Life Science, Inner Mongolia University, Hohhot, 010070, China
| | - Guangpeng Li
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot, 010070, China. .,College of Life Science, Inner Mongolia University, Hohhot, 010070, China.
| |
Collapse
|
34
|
Li Q, Liao C, Xu W, Li G, Hong K, Cheng X, Li J. Xeroderma Pigmentosum Group D (XPD) Inhibits the Proliferation Cycle of Vascular Smooth Muscle Cell (VSMC) by Activating Glycogen Synthase Kinase 3β (GSK3β). Med Sci Monit 2018; 24:5951-5959. [PMID: 30146633 PMCID: PMC6122044 DOI: 10.12659/msm.909614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND VSMC proliferation plays a key role in atherosclerosis, but the role of XPD in VSMC proliferation remains unknown. We investigated the expression of XPD, which is involved in cell cycle regulation, and its role in VSMC proliferation response to atherogenic stimuli. MATERIAL AND METHODS Human umbilical vein VSMCs were transfected with recombinant plasmid pEGFP-N2/XPD and pEGFP-N2 and incubated with PDGF-BB in vitro. Cell viability was determined by MTT assay. The expressions of XPD, GSK3β, p-GSK3β, CDK4, and cyclin D1 protein were detected by Western blot analysis. Cell cycle was examined by flow cytometry. RESULTS PDGF inhibited the expression of XPD in VSMCs and promoted VSMC proliferation. Overexpression of XPD significantly augmented cell cycle arrest, and attenuated protein expression levels of CDK4 and cyclin D1 in VSMCs. XPD overexpression suppressed the effects of PDGF-BB in promoting G1/S transition and accelerating protein expression levels of CDK4 and cyclin D1. XPD diminished the phosphorylation of GSK3β, and SB216763 inhibited the reduction effect of XPD on CDK4 and cyclin D1. CONCLUSIONS XPD induces VSMC cell cycle arrest, and the activation of GSK3β plays a crucial role in inhibitory effect of XPD on VSMC proliferation.
Collapse
Affiliation(s)
- Qing Li
- Department of Cardiology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland).,Jiangxi Provincial Key Laboratory of Molecular Medicine, Nanchang, Jiangxi, China (mainland)
| | - Chunyao Liao
- Department of Cardiology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Wang Xu
- Department of Cardiology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Genlin Li
- Department of Cardiology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Kui Hong
- Department of Cardiology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Xiaoshu Cheng
- Department of Cardiology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Juxiang Li
- Department of Cardiology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| |
Collapse
|
35
|
Dai L, Zhao T, Bisteau X, Sun W, Prabhu N, Lim YT, Sobota RM, Kaldis P, Nordlund P. Modulation of Protein-Interaction States through the Cell Cycle. Cell 2018; 173:1481-1494.e13. [PMID: 29706543 DOI: 10.1016/j.cell.2018.03.065] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 01/25/2018] [Accepted: 03/26/2018] [Indexed: 11/25/2022]
Abstract
Global profiling of protein expression through the cell cycle has revealed subsets of periodically expressed proteins. However, expression levels alone only give a partial view of the biochemical processes determining cellular events. Using a proteome-wide implementation of the cellular thermal shift assay (CETSA) to study specific cell-cycle phases, we uncover changes of interaction states for more than 750 proteins during the cell cycle. Notably, many protein complexes are modulated in specific cell-cycle phases, reflecting their roles in processes such as DNA replication, chromatin remodeling, transcription, translation, and disintegration of the nuclear envelope. Surprisingly, only small differences in the interaction states were seen between the G1 and the G2 phase, suggesting similar hardwiring of biochemical processes in these two phases. The present work reveals novel molecular details of the cell cycle and establishes proteome-wide CETSA as a new strategy to study modulation of protein-interaction states in intact cells.
Collapse
Affiliation(s)
- Lingyun Dai
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore
| | - Tianyun Zhao
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore
| | - Xavier Bisteau
- Institute of Molecular and Cell Biology, A(∗)STAR, Singapore 138673, Singapore
| | - Wendi Sun
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore
| | - Nayana Prabhu
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore
| | - Yan Ting Lim
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore
| | - Radoslaw M Sobota
- Institute of Molecular and Cell Biology, A(∗)STAR, Singapore 138673, Singapore; Institute of Medical Biology, A(∗)STAR, Singapore 138648, Singapore
| | - Philipp Kaldis
- Institute of Molecular and Cell Biology, A(∗)STAR, Singapore 138673, Singapore; Department of Biochemistry, National University of Singapore, Singapore 117597, Singapore
| | - Pär Nordlund
- School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore; Institute of Molecular and Cell Biology, A(∗)STAR, Singapore 138673, Singapore; Department of Oncology and Pathology, Karolinska Institutet, 17177 Stockholm, Sweden.
| |
Collapse
|
36
|
Raspé E, Coulonval K, Pita JM, Paternot S, Rothé F, Twyffels L, Brohée S, Craciun L, Larsimont D, Kruys V, Sandras F, Salmon I, Van Laere S, Piccart M, Ignatiadis M, Sotiriou C, Roger PP. CDK4 phosphorylation status and a linked gene expression profile predict sensitivity to palbociclib. EMBO Mol Med 2018; 9:1052-1066. [PMID: 28566333 PMCID: PMC5538335 DOI: 10.15252/emmm.201607084] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Cyclin D-CDK4/6 are the first CDK complexes to be activated in the G1 phase in response to oncogenic pathways. The specific CDK4/6 inhibitor PD0332991 (palbociclib) was recently approved by the FDA and EMA for treatment of advanced ER-positive breast tumors. Unfortunately, no reliable predictive tools are available for identifying potentially responsive or insensitive tumors. We had shown that the activating T172 phosphorylation of CDK4 is the central rate-limiting event that initiates the cell cycle decision and signals the presence of active CDK4. Here, we report that the profile of post-translational modification including T172 phosphorylation of CDK4 differs among breast tumors and associates with their subtypes and risk. A gene expression signature faithfully predicted CDK4 modification profiles in tumors and cell lines. Moreover, in breast cancer cell lines, the CDK4 T172 phosphorylation best correlated with sensitivity to PD0332991. This gene expression signature identifies tumors that are unlikely to respond to CDK4/6 inhibitors and could help to select a subset of patients with HER2-positive and basal-like tumors for clinical studies on this class of drugs.
Collapse
Affiliation(s)
- Eric Raspé
- WELBIO and Institute of Interdisciplinary Research (IRIBHM), Campus Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium .,ULB-Cancer Research Center (U-CRC) Université Libre de Bruxelles, Brussels, Belgium
| | - Katia Coulonval
- WELBIO and Institute of Interdisciplinary Research (IRIBHM), Campus Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium.,ULB-Cancer Research Center (U-CRC) Université Libre de Bruxelles, Brussels, Belgium
| | - Jaime M Pita
- WELBIO and Institute of Interdisciplinary Research (IRIBHM), Campus Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium.,ULB-Cancer Research Center (U-CRC) Université Libre de Bruxelles, Brussels, Belgium
| | - Sabine Paternot
- WELBIO and Institute of Interdisciplinary Research (IRIBHM), Campus Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium.,ULB-Cancer Research Center (U-CRC) Université Libre de Bruxelles, Brussels, Belgium
| | - Françoise Rothé
- ULB-Cancer Research Center (U-CRC) Université Libre de Bruxelles, Brussels, Belgium.,Breast Cancer Translational Research Laboratory, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Laure Twyffels
- Laboratoire de Biologie Moléculaire du Gène, Faculté des Sciences, Université libre de Bruxelles (ULB), Brussels, Belgium.,Center for Microscopy and Molecular Imaging, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Sylvain Brohée
- ULB-Cancer Research Center (U-CRC) Université Libre de Bruxelles, Brussels, Belgium.,Breast Cancer Translational Research Laboratory, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Ligia Craciun
- Tumor Bank of the Jules Bordet Institute, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Denis Larsimont
- Department of Pathology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Véronique Kruys
- Laboratoire de Biologie Moléculaire du Gène, Faculté des Sciences, Université libre de Bruxelles (ULB), Brussels, Belgium.,Center for Microscopy and Molecular Imaging, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Flavienne Sandras
- Department of Pathology, Erasme Hospital, Université Libre de Bruxelles (ULB), Brussels, Belgium.,Biobank of the Erasme Hospital, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Isabelle Salmon
- ULB-Cancer Research Center (U-CRC) Université Libre de Bruxelles, Brussels, Belgium.,Department of Pathology, Erasme Hospital, Université Libre de Bruxelles (ULB), Brussels, Belgium.,Biobank of the Erasme Hospital, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Steven Van Laere
- Center for Oncological Research (CORE), University of Antwerp, Antwerp, Belgium
| | - Martine Piccart
- ULB-Cancer Research Center (U-CRC) Université Libre de Bruxelles, Brussels, Belgium.,Medical Oncology Clinic, Department of Medicine, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Michail Ignatiadis
- ULB-Cancer Research Center (U-CRC) Université Libre de Bruxelles, Brussels, Belgium.,Breast Cancer Translational Research Laboratory, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Christos Sotiriou
- ULB-Cancer Research Center (U-CRC) Université Libre de Bruxelles, Brussels, Belgium .,Breast Cancer Translational Research Laboratory, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Pierre P Roger
- WELBIO and Institute of Interdisciplinary Research (IRIBHM), Campus Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium .,ULB-Cancer Research Center (U-CRC) Université Libre de Bruxelles, Brussels, Belgium
| |
Collapse
|
37
|
Yang H, Zhao X, Zhao L, Liu L, Li J, Jia W, Liu J, Huang G. PRMT5 competitively binds to CDK4 to promote G1-S transition upon glucose induction in hepatocellular carcinoma. Oncotarget 2018; 7:72131-72147. [PMID: 27708221 PMCID: PMC5342150 DOI: 10.18632/oncotarget.12351] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 09/20/2016] [Indexed: 01/07/2023] Open
Abstract
Although cancer cells are known to be "addicted" to glucose, the effect of glucose in proliferation of these cells remains elusive. Here, we report that upon glucose induction, protein arginine methyltransferase 5 (PRMT5) exerts a profound effect on the G1-S cell cycle progression via directly interacting with cyclin dependent kinase 4 (CDK4) in hepatocellular carcinoma (HCC). Upregulation of both PRMT5 and CDK4 predicts more malignant characteristics in human HCC tissues. Mechanistically, glucose promotes the interaction between PRMT5 and CDK4, which leads to activation of CDK4-RB-E2F-mediated transcription via releasing CDKN2A from CDK4. Moreover, the PRMT5 competitive inhibition of the interaction between CDK4 and CDKN2A is important for glucose-induced growth of HCC cells. Furthermore, the CDK4 mutant R24A weakly binds to PRMT5, inhibiting HCC cell cycle progression and tumor growth. Thus, our findings uncover a critical function for PRMT5 and CDK4 and provide an improved therapeutic strategy against HCC.
Collapse
Affiliation(s)
- Hao Yang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS) & Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200031, China
| | - Xiaoping Zhao
- Department of Nuclear Medicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Li Zhao
- Department of Nuclear Medicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Liu Liu
- Department of Nuclear Medicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Jiajin Li
- Department of Nuclear Medicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Wenzhi Jia
- Department of Nuclear Medicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Jianjun Liu
- Department of Nuclear Medicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Gang Huang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS) & Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai 200031, China.,Department of Nuclear Medicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China.,Institute of Clinical Nuclear Medicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China.,Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| |
Collapse
|
38
|
He H, Xu J, Xie W, Guo QL, Jiang FL, Liu Y. Reduced state transition barrier of CDK6 from open to closed state induced by Thr177 phosphorylation and its implication in binding modes of inhibitors. Biochim Biophys Acta Gen Subj 2017; 1862:501-512. [PMID: 29108955 DOI: 10.1016/j.bbagen.2017.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 10/30/2017] [Accepted: 11/01/2017] [Indexed: 01/15/2023]
Abstract
BACKGROUND CDK6 is considered as a highly validated anticancer drug target due to its essential role in regulating cell cycle progression at G1 restriction point. Activation of CDK6 requires the phosphorylation of Thr177 on A-loop, but the structural insights of the activation mechanism remain unclear. METHODS Herein, all-atoms molecular dynamics (MD) simulations were used to study the effects of Thr177 phosphorylation on the dynamic structure of CDK6-Vcyclin complex. RESULTS MD results indicated that the free energy barrier of the transition from open to closed state decreased ~47.2% after Thr177 phosphorylation. Key steps along the state transition process were obtained from a cluster analysis. Binding preference of ten different inhibitors to open or closed state were also investigated through molecular docking along with MD simulations methods. CONCLUSIONS Our results indicated that Thr177 phosphorylation increased the flexibility around the ATP-binding pocket. The transition of the ATP-binding pocket between open and closed states should be considered for understanding the binding of CDK6 inhibitors. GENERAL SIGNIFICANCE This work could deepen the understanding of CDKs activation mechanism, and provide useful information for the discovery of new CDKs inhibitors with high affinity and specificity.
Collapse
Affiliation(s)
- Huan He
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE) & Key Laboratory of Biomedical Polymer Materials (MOE), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Juan Xu
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE) & Key Laboratory of Biomedical Polymer Materials (MOE), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
| | - Wen Xie
- Department of Clinical Laboratory, Zhongnan Hospital, Wuhan University, Wuhan 430071, PR China
| | - Qing-Lian Guo
- Department of Clinical Laboratory, Zhongnan Hospital, Wuhan University, Wuhan 430071, PR China
| | - Feng-Lei Jiang
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE) & Key Laboratory of Biomedical Polymer Materials (MOE), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China.
| | - Yi Liu
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE) & Key Laboratory of Biomedical Polymer Materials (MOE), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China; Key Laboratory of Coal Conversion and Carbon Materials of Hubei Province, College of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, PR China; College of Chemistry and Material Sciences, Guangxi Teachers Education University, Nanning 530001, PR China.
| |
Collapse
|
39
|
Hallett ST, Pastok MW, Morgan RML, Wittner A, Blundell KLIM, Felletar I, Wedge SR, Prodromou C, Noble MEM, Pearl LH, Endicott JA. Differential Regulation of G1 CDK Complexes by the Hsp90-Cdc37 Chaperone System. Cell Rep 2017; 21:1386-1398. [PMID: 29091774 PMCID: PMC5681435 DOI: 10.1016/j.celrep.2017.10.042] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 06/10/2017] [Accepted: 10/11/2017] [Indexed: 02/06/2023] Open
Abstract
Selective recruitment of protein kinases to the Hsp90 system is mediated by the adaptor co-chaperone Cdc37. We show that assembly of CDK4 and CDK6 into protein complexes is differentially regulated by the Cdc37-Hsp90 system. Like other Hsp90 kinase clients, binding of CDK4/6 to Cdc37 is blocked by ATP-competitive inhibitors. Cdc37-Hsp90 relinquishes CDK6 to D3- and virus-type cyclins and to INK family CDK inhibitors, whereas CDK4 is relinquished to INKs but less readily to cyclins. p21CIP1 and p27KIP1 CDK inhibitors are less potent than the INKs at displacing CDK4 and CDK6 from Cdc37. However, they cooperate with the D-type cyclins to generate CDK4/6-containing ternary complexes that are resistant to cyclin D displacement by Cdc37, suggesting a molecular mechanism to explain the assembly factor activity ascribed to CIP/KIP family members. Overall, our data reveal multiple mechanisms whereby the Hsp90 system may control formation of CDK4- and CDK6-cyclin complexes under different cellular conditions.
Collapse
Affiliation(s)
- Stephen T Hallett
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
| | - Martyna W Pastok
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
| | - R Marc L Morgan
- Genome Damage and Stability Centre, School of Life Sciences, University of Sussex, Science Park Road, Falmer, Brighton BN1 9RQ, UK
| | - Anita Wittner
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
| | - Katie L I M Blundell
- Genome Damage and Stability Centre, School of Life Sciences, University of Sussex, Science Park Road, Falmer, Brighton BN1 9RQ, UK
| | - Ildiko Felletar
- Genome Damage and Stability Centre, School of Life Sciences, University of Sussex, Science Park Road, Falmer, Brighton BN1 9RQ, UK
| | - Stephen R Wedge
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
| | - Chrisostomos Prodromou
- Genome Damage and Stability Centre, School of Life Sciences, University of Sussex, Science Park Road, Falmer, Brighton BN1 9RQ, UK
| | - Martin E M Noble
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
| | - Laurence H Pearl
- Genome Damage and Stability Centre, School of Life Sciences, University of Sussex, Science Park Road, Falmer, Brighton BN1 9RQ, UK.
| | - Jane A Endicott
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Paul O'Gorman Building, Medical School, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4HH, UK.
| |
Collapse
|
40
|
Ding XQ, Zhao S, Yang L, Zhao X, Zhao GF, Zhao SP, Li ZJ, Zheng HC. The nucleocytoplasmic translocation and up-regulation of ING5 protein in breast cancer: a potential target for gene therapy. Oncotarget 2017; 8:81953-81966. [PMID: 29137236 PMCID: PMC5669862 DOI: 10.18632/oncotarget.17918] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 05/03/2017] [Indexed: 12/22/2022] Open
Abstract
Here, we found that ING5 overexpression resulted in a lower proliferation, reduced glucose metabolism, S arrest, decreased migration and invasion, apoptotic induction, fat accumulation, autophagy, senescence and mesenchymal-epithelial–transition of breast cancer cells. It also suppressed the tumor growth of breast cancer cells by inhibiting proliferation, inducing apoptosis and autophagy. ING5-mediated chemoresistance was positively linked to Akt and NF-κB activation, MRP1 and GST-π overexpression, and FBXW7 hypoexpression. ING5 expression was higher in breast cancer than normal tissue at both mRNA and protein levels. ING5 mRNA expression was positively correlated with relapse- and distant metastasis-free survival rates. Nuclear ING5 expression showed gradual decrease from breast normal tissue, fibroadenoma, adenomatosis, primary to metastatic cancers, while versa for cytoplasmic ING5. Nuclear ING5 expression was negatively correlated with distant metastasis and p53 hypoexpression, while cytoplasmic ING5 expression was positively correlated with tumor size and ER expression. These data suggested that up-regulated expression and nucleocytoplasmic translocation of ING5 protein were observed in breast cancer. The higher expression of nuclear ING5 was inversely linked to worse clinicopathological behaviors of breast cancer by in vivo and vitro reversing aggressive phenotypes. Therefore, it should be employed as a biomarker to indicate the tumorigenesis and aggressiveness of breast cancer, and as a potential target for gene therapy.
Collapse
Affiliation(s)
- Xiao-Qing Ding
- Department of Experimental Oncology and Animal Center, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Shuang Zhao
- Department of Experimental Oncology and Animal Center, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Lei Yang
- Department of Experimental Oncology and Animal Center, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Xin Zhao
- Department of Experimental Oncology and Animal Center, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Gui-Feng Zhao
- Department of Experimental Oncology and Animal Center, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Shu-Peng Zhao
- Department of Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, China
| | - Zhi-Jie Li
- Department of Experimental Oncology and Animal Center, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Hua-Chuan Zheng
- Department of Experimental Oncology and Animal Center, Shengjing Hospital of China Medical University, Shenyang 110004, China
| |
Collapse
|
41
|
JNKs function as CDK4-activating kinases by phosphorylating CDK4 and p21. Oncogene 2017; 36:4349-4361. [PMID: 28368408 PMCID: PMC5537611 DOI: 10.1038/onc.2017.7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 12/16/2016] [Accepted: 01/11/2017] [Indexed: 12/12/2022]
Abstract
Cyclin D-CDK4/6 are the first cyclin-dependent kinase (CDK) complexes to be activated by mitogenic/oncogenic pathways. They have a central role in the cell multiplication decision and in its deregulation in cancer cells. We identified T172 phosphorylation of CDK4 rather than cyclin D accumulation as the distinctly regulated step determining CDK4 activation. This finding challenges the view that the only identified metazoan CDK-activating kinase, cyclin H-CDK7-Mat1 (CAK), which is constitutively active, is responsible for the activating phosphorylation of all cell cycle CDKs. We previously showed that T172 phosphorylation of CDK4 is conditioned by an adjacent proline (P173), which is not present in CDK6 and CDK1/2. Although CDK7 activity was recently shown to be required for CDK4 activation, we proposed that proline-directed kinases might specifically initiate the activation of CDK4. Here, we report that JNKs, but not ERK1/2 or CAK, can be direct CDK4-activating kinases for cyclin D-CDK4 complexes that are inactivated by p21-mediated stabilization. JNKs and ERK1/2 also phosphorylated p21 at S130 and T57, which might facilitate CDK7-dependent activation of p21-bound CDK4, however, mutation of these sites did not impair the phosphorylation of CDK4 by JNKs. In two selected tumor cells, two different JNK inhibitors inhibited the phosphorylation and activation of cyclin D1-CDK4-p21 but not the activation of cyclin D3-CDK4 that is mainly associated to p27. Specific inhibition by chemical genetics in MEFs confirmed the involvement of JNK2 in cyclin D1-CDK4 activation. Therefore, JNKs could be activating kinases for cyclin D1-CDK4 bound to p21, by independently phosphorylating both CDK4 and p21.
Collapse
|
42
|
miR-150 inhibits terminal erythroid proliferation and differentiation. Oncotarget 2016; 6:43033-47. [PMID: 26543232 PMCID: PMC4767489 DOI: 10.18632/oncotarget.5824] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 10/22/2015] [Indexed: 01/21/2023] Open
Abstract
MicroRNAs (miRNAs), a class of small non-coding linear RNAs, have been shown to play a crucial role in erythropoiesis. To evaluate the indispensable role of constant suppression of miR-150 during terminal erythropoiesis, we performed miR-150 gain- and loss-of-function experiments on hemin-induced K562 cells and EPO-induced human CD34+ cells. We found that forced expression of miR-150 suppresses commitment of hemoglobinization and CD235a labeling in both cell types. Erythroid proliferation is also inhibited via inducing apoptosis and blocking the cell cycle when miR-150 is overexpressed. In contrast, miR-150 inhibition promotes terminal erythropoiesis. 4.1 R gene is a new target of miR-150 during terminal erythropoiesis, and its abundance ensures the mechanical stability and deformability of the membrane. However, knockdown of 4.1 R did not affect terminal erythropoiesis. Transcriptional profiling identified more molecules involved in terminal erythroid dysregulation derived from miR-150 overexpression. These results shed light on the role of miR-150 during human terminal erythropoiesis. This is the first report highlighting the relationship between miRNA and membrane protein and enhancing our understanding of how miRNA works in the hematopoietic system.
Collapse
|
43
|
Abstract
How and when eukaryotic cells make the irrevocable commitment to divide remain central questions in the cell-cycle field. Parallel studies in yeast and mammalian cells seemed to suggest analogous control mechanisms operating during the G1 phase—at Start or the restriction (R) point, respectively—to integrate nutritional and developmental signals and decide between distinct cell fates: cell-cycle arrest or exit versus irreversible commitment to a round of division. Recent work has revealed molecular mechanisms underlying this decision-making process in both yeast and mammalian cells but also cast doubt on the nature and timing of cell-cycle commitment in multicellular organisms. These studies suggest an expanded temporal window of mitogen sensing under certain growth conditions, illuminate unexpected obstacles and exit ramps on the path to full cell-cycle commitment, and raise new questions regarding the functions of cyclin-dependent kinases (CDKs) that drive G1 progression and S-phase entry.
Collapse
Affiliation(s)
- Robert P Fisher
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| |
Collapse
|
44
|
Ni S, Chen L, Li M, Zhao W, Shan X, Wu M, Cheng J, Liang L, Wang Y, Jiang W, Zhang J, Ni R. PKC iota promotes cellular proliferation by accelerated G1/S transition via interaction with CDK7 in esophageal squamous cell carcinoma. Tumour Biol 2016; 37:13799-13809. [PMID: 27481515 DOI: 10.1007/s13277-016-5193-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 07/13/2016] [Indexed: 12/22/2022] Open
Abstract
Protein kinase C iota (PKCι) has been shown to play an important role in tumorigenesis of many cancers. It was reported that frequent amplification and overexpression of PKCi were correlated with resistance to anoikis in primary esophageal squamous cell carcinomas (ESCC). In this study, we clarified a novel role of PKCι on the cell cycle progression and proliferation in ESCC. Western blot and immunohistochemistry (IHC) analysis showed that the expression of PKCι was higher in ESCC tumor tissues and cell lines. Meanwhile, IHC stain revealed that PKCι was positively correlated with clinical pathologic variables such as tumor size, tumor grade, and tumor invasion, as well as ki67. Immunoprecipitation and immunofluorescence assay revealed that PKCι/CDK7 has the physical interaction and were co-located in the cell nucleus. And this direct interaction could increase the phosphorylation level of CDK7. In vitro studies such as starvation and refeeding assay along with PKCι-shRNA transfection assay demonstrated that PKCι expression promoted proliferation of ESCC cells. And knocking PKCi down by silencing RNA (siRNA) significantly caused cell cycle arrest at G0/G1 phase, decreased rate of colony formation, and alleviated cellular apoptosis. This research provide new insights into PKCi signaling to more deeply understand its cancer-promoting function in ESCC.
Collapse
Affiliation(s)
- Sujie Ni
- Department of Medical Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Lingling Chen
- Department of Gastroenterology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Mei Li
- Department of Medical Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Weijuan Zhao
- Department of Gastroenterology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Xiaohang Shan
- Department of Gastroenterology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Miaomiao Wu
- Department of Gastroenterology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Jialin Cheng
- Department of Medical Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Li Liang
- Department of Medical Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Yayun Wang
- Department of Gastroenterology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Wenyan Jiang
- Department of Medical Oncology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China
| | - Jianguo Zhang
- Department of Pathology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China.
| | - Runzhou Ni
- Department of Gastroenterology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu, 226001, China.
| |
Collapse
|
45
|
Chlamydas S, Holz H, Samata M, Chelmicki T, Georgiev P, Pelechano V, Dündar F, Dasmeh P, Mittler G, Cadete FT, Ramírez F, Conrad T, Wei W, Raja S, Manke T, Luscombe NM, Steinmetz LM, Akhtar A. Functional interplay between MSL1 and CDK7 controls RNA polymerase II Ser5 phosphorylation. Nat Struct Mol Biol 2016; 23:580-9. [PMID: 27183194 DOI: 10.1038/nsmb.3233] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 04/21/2016] [Indexed: 01/09/2023]
Abstract
Proper gene expression requires coordinated interplay among transcriptional coactivators, transcription factors and the general transcription machinery. We report here that MSL1, a central component of the dosage compensation complex in Drosophila melanogaster and Drosophila virilis, displays evolutionarily conserved sex-independent binding to promoters. Genetic and biochemical analyses reveal a functional interaction of MSL1 with CDK7, a subunit of the Cdk-activating kinase (CAK) complex of the general transcription factor TFIIH. Importantly, MSL1 depletion leads to decreased phosphorylation of Ser5 of RNA polymerase II. In addition, we demonstrate that MSL1 is a phosphoprotein, and transgenic flies expressing MSL1 phosphomutants show mislocalization of the histone acetyltransferase MOF and histone H4 K16 acetylation, thus ultimately causing male lethality due to a failure of dosage compensation. We propose that, by virtue of its interaction with components of the general transcription machinery, MSL1 exists in different phosphorylation states, thereby modulating transcription in flies.
Collapse
Affiliation(s)
- Sarantis Chlamydas
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
| | - Herbert Holz
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
| | - Maria Samata
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
- University of Freiburg, Faculty of Biology, Freiburg im Breisgau, Germany
| | - Tomasz Chelmicki
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
| | - Plamen Georgiev
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
| | - Vicent Pelechano
- Genome Biology Unit, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
- SciLifeLab, Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Solna, Sweden
| | - Friederike Dündar
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
- University of Freiburg, Faculty of Biology, Freiburg im Breisgau, Germany
| | - Pouria Dasmeh
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
| | - Gerhard Mittler
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
| | | | - Fidel Ramírez
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
| | - Thomas Conrad
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
| | - Wu Wei
- Genome Biology Unit, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
- Stanford Genome Technology Center, Stanford University, Palo Alto, California, USA
| | - Sunil Raja
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
| | - Thomas Manke
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
| | - Nicholas M Luscombe
- The Francis Crick Institute, London, UK
- UCL Genetics Institute, Department of Genetics, Evolution and Environment, University College London, London, UK
| | - Lars M Steinmetz
- Genome Biology Unit, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
- Stanford Genome Technology Center, Stanford University, Palo Alto, California, USA
| | - Asifa Akhtar
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg im Breisgau, Germany
| |
Collapse
|
46
|
Lu CC, Shen CH, Chang CB, Hsieh HY, Wu JD, Tseng LH, Hwang DW, Chen SY, Wu SF, Chan MWY, Hsu CD. Guizhi Fuling Wan as a Novel Agent for Intravesical Treatment for Bladder Cancer in a Mouse Model. Mol Med 2016; 22:64-73. [PMID: 26837068 DOI: 10.2119/molmed.2015.00085] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Accepted: 01/13/2016] [Indexed: 02/04/2023] Open
Abstract
Alternative intravesical agents are required to overcome the side effects currently associated with the treatment of bladder cancer. This study used an orthotopic bladder cancer mouse model to evaluate Guizhi Fuling Wan (GFW) as an intravesical agent. The effects of GFW were compared with those of mitomycin-C (Mito-C) and bacille Calmette-Guérin (BCG). We began by evaluating the response of the mouse bladder cancer cell line MB49 to GFW treatment, with regard to cell viability, cell cycle progression and apoptosis. MB49 cells were subsequently implanted into the urothelial walls of the bladder in female C57BL/6 mice. The success of the model was confirmed by the appearance of hematuria and tumor growth in the bladder. Intravesical chemotherapy was administered in accordance with a published protocol. In vitro data revealed that GFW arrested MB49 cell cycle in the G0/G1 phase, resulting in the suppression of cell proliferation and induced apoptosis. One possible mechanism underlying these effects is an increase in intracellular reactive oxygen species (ROS) levels leading to the activation of ataxia telangiectasia-mutated (ATM)/checkpoint kinase 2 (CHK2) and ATM/P53 pathways, thereby mediating cell cycle progression and apoptosis, respectively. This mouse model demonstrates the effectiveness of GFW in the tumor growth, with results comparable to those achieved by using BCG and Mito-C. Furthermore, GFW was shown to cause only mild hematuria. The low toxicity of the compound was confirmed by a complete lack of lesions on bladder tissue, even after 10 consecutive treatments using high concentrations of GFW. These results demonstrate the potential of GFW for the intravesical therapy of bladder cancer.
Collapse
Affiliation(s)
- Chi-Chen Lu
- Department of Chinese Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan.,Graduate Institute of Molecular Biology, National Chung Cheng University, Chia-Yi, Taiwan.,Department of Life Science, National Chung Cheng University, Chia-Yi, Taiwan
| | - Cheng-Huang Shen
- Department of Medical Research, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan.,Department of Urology, and Pathology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan
| | - Chia-Bin Chang
- Graduate Institute of Molecular Biology, National Chung Cheng University, Chia-Yi, Taiwan.,Department of Life Science, National Chung Cheng University, Chia-Yi, Taiwan
| | - Hsiao-Yen Hsieh
- Graduate Institute of Molecular Biology, National Chung Cheng University, Chia-Yi, Taiwan.,Department of Life Science, National Chung Cheng University, Chia-Yi, Taiwan.,Department of Medical Research, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan
| | - Jiann-Der Wu
- Department of Pathology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan
| | - Ling-Huei Tseng
- Graduate Institute of Molecular Biology, National Chung Cheng University, Chia-Yi, Taiwan
| | - Dennis W Hwang
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, Taiwan
| | - Syue-Yi Chen
- Department of Medical Research, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan
| | - Shu-Fen Wu
- Graduate Institute of Molecular Biology, National Chung Cheng University, Chia-Yi, Taiwan.,Department of Life Science, National Chung Cheng University, Chia-Yi, Taiwan
| | - Michael W Y Chan
- Graduate Institute of Molecular Biology, National Chung Cheng University, Chia-Yi, Taiwan.,Department of Life Science, National Chung Cheng University, Chia-Yi, Taiwan
| | - Cheng-Da Hsu
- Graduate Institute of Molecular Biology, National Chung Cheng University, Chia-Yi, Taiwan.,Department of Medical Research, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan.,Department of Urology, and Pathology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan
| |
Collapse
|
47
|
Paternot S, Colleoni B, Bisteau X, Roger PP. The CDK4/CDK6 inhibitor PD0332991 paradoxically stabilizes activated cyclin D3-CDK4/6 complexes. Cell Cycle 2015; 13:2879-88. [PMID: 25486476 DOI: 10.4161/15384101.2014.946841] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
CDK4 and CDK6 bound to D-type cyclins are master integrators of G1 phase cell cycle regulations by initiating the inactivating phosphorylation of the central oncosuppressor pRb. Because of their frequent deregulation in cancer, cyclin D-CDK4/6 complexes are emerging as especially promising therapeutic targets. The specific CDK4/6 inhibitor PD0332991 is currently tested in a growing number of phase II/III clinical trials against a variety of pRb-proficient chemotherapy-resistant cancers. We have previously shown that PD0332991 inhibits not only CDK4/6 activity but also the activation by phosphorylation of the bulk of cyclin D-CDK4 complexes stabilized by p21 binding. Here we show that PD0332991 has either a positive or a negative impact on the activation of cyclin D-CDK4/6 complexes, depending on their binding to p21. Indeed, whereas PD0332991 inhibits the phosphorylation and activity of p21-bound CDK4/6, it specifically stabilized activated cyclin D3-CDK4/6 complexes devoid of p21 and p27. After elimination of PD0332991, these activated cyclin D3-CDK4/6 complexes persisted for at least 24 h, resulting in paradoxical cell cycle entry in the absence of a mitogenic stimulation. This unsuspected positive effect of PD0332991 on cyclin D3-CDK4/6 activation should be carefully assessed in the clinical evaluation of PD0332991, which until now only involves discontinuous administration protocols.
Collapse
Key Words
- 2D, 2-dimensional
- BrdU, bromodeoxyuridine
- CAK, CDK-activating kinase
- CDK, cyclin-dependent kinase
- CDK4
- CDK6
- FBS, fetal bovine serum
- IP, immunoprecipitation
- PAGE, polyacrylamide gel electrophoresis
- PBS, phosphate buffer saline
- PD033, PD0332991
- PD0332991
- Palbociclib
- SDS, sodium dodecyl sulfate
- SEM, standard error of the mean
- cell cycle-based tumor therapeutics
- cyclin D3
- p21
- pRb, retinoblastoma susceptibility protein
Collapse
Affiliation(s)
- Sabine Paternot
- a WELBIO and Institute of Interdisciplinary Research (IRIBHM) ; Université Libre de Bruxelles ; Campus Erasme; Brussels , Belgium
| | | | | | | |
Collapse
|
48
|
Antagonistic Relationship between Human Cytomegalovirus pUL27 and pUL97 Activities during Infection. J Virol 2015. [PMID: 26223645 DOI: 10.1128/jvi.00986-15] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
UNLABELLED Human cytomegalovirus (HCMV) is a member of the betaherpesvirus family. During infection, an array of viral proteins manipulates the host cell cycle. We have previously shown that expression of HCMV pUL27 results in increased levels of the cyclin-dependent kinase (CDK) inhibitor p21(Cip1). In addition, pUL27 is necessary for the full antiviral activity of the pUL97 kinase inhibitor maribavir (MBV). The purpose of this study was to define the relationship between pUL27 and pUL97 and its role in MBV antiviral activity. We observed that expression of wild-type but not kinase-inactive pUL97 disrupted pUL27-dependent induction of p21(Cip1). Furthermore, pUL97 associated with and promoted the phosphorylation of pUL27. During infection, inhibition of the kinase resulted in elevated levels of p21(Cip1) in wild-type virus but not a pUL27-deficient virus. We manipulated the p21(Cip1) levels to evaluate the functional consequence to MBV. Overexpression of p21(Cip1) restored MBV activity against a pUL27-deficient virus, while disruption reduced activity against wild-type virus. We provide evidence that the functional target of p21(Cip1) in the context of MBV activity is CDK1. One CDK-like activity of pUL97 is to phosphorylate nuclear lamin A/C, resulting in altered nuclear morphology and increased viral egress. In the presence of MBV, we observed that infection using a pUL27-deficient virus still altered the nuclear morphology. This was prevented by the addition of a CDK inhibitor. Overall, our results demonstrate an antagonistic relationship between pUL27 and pUL97 activities centering on p21(Cip1) and support the idea that CDKs can complement some activities of pUL97. IMPORTANCE HCMV infection results in severe disease upon immunosuppression and is a leading cause of congenital birth defects. Effective antiviral compounds exist, yet they exhibit high levels of toxicity, are not approved for use during pregnancy, and can result in antiviral resistance. Our studies have uncovered new information regarding the antiviral efficacy of the HCMV pUL97 kinase inhibitor MBV as it relates to the complex interplay between pUL97 and a second HCMV protein, pUL27. We demonstrate that pUL97 functions antagonistically against pUL27 by phosphorylation-dependent inactivation of pUL27-mediated induction of p21(Cip1). In contrast, we provide evidence that p21(Cip1) functions to antagonize overlapping activities between pUL97 and cellular CDKs. In addition, these studies further support the notion that CDK inhibitors or p21(Cip1) activators might be useful in combination with MBV to effectively inhibit HCMV infections.
Collapse
|
49
|
Dong Y, Kuang Q, Dai X, Li R, Wu Y, Leng W, Li Y, Li M. Improving the Understanding of Pathogenesis of Human Papillomavirus 16 via Mapping Protein-Protein Interaction Network. BIOMED RESEARCH INTERNATIONAL 2015; 2015:890381. [PMID: 25961044 PMCID: PMC4414230 DOI: 10.1155/2015/890381] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 08/27/2014] [Accepted: 09/01/2014] [Indexed: 01/09/2023]
Abstract
The human papillomavirus 16 (HPV16) has high risk to lead various cancers and afflictions, especially, the cervical cancer. Therefore, investigating the pathogenesis of HPV16 is very important for public health. Protein-protein interaction (PPI) network between HPV16 and human was used as a measure to improve our understanding of its pathogenesis. By adopting sequence and topological features, a support vector machine (SVM) model was built to predict new interactions between HPV16 and human proteins. All interactions were comprehensively investigated and analyzed. The analysis indicated that HPV16 enlarged its scope of influence by interacting with human proteins as much as possible. These interactions alter a broad array of cell cycle progression. Furthermore, not only was HPV16 highly prone to interact with hub proteins and bottleneck proteins, but also it could effectively affect a breadth of signaling pathways. In addition, we found that the HPV16 evolved into high carcinogenicity on the condition that its own reproduction had been ensured. Meanwhile, this work will contribute to providing potential new targets for antiviral therapeutics and help experimental research in the future.
Collapse
Affiliation(s)
- Yongcheng Dong
- College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Qifan Kuang
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xu Dai
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Rong Li
- College of Computer Science, Sichuan University, Chengdu 610064, China
| | - Yiming Wu
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Weijia Leng
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yizhou Li
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Menglong Li
- College of Chemistry, Sichuan University, Chengdu 610064, China
| |
Collapse
|
50
|
A novel CDK7 inhibitor of the Pyrazolotriazine class exerts broad-spectrum antiviral activity at nanomolar concentrations. Antimicrob Agents Chemother 2015; 59:2062-71. [PMID: 25624324 DOI: 10.1128/aac.04534-14] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Protein kinases represent central and multifunctional regulators of a balanced virus-host interaction. Cyclin-dependent protein kinase 7 (CDK7) plays crucial regulatory roles in cell cycle and transcription, both connected with the replication of many viruses. Previously, we developed a CDK7 inhibitor, LDC4297, that inhibits CDK7 in vitro in the nano-picomolar range. Novel data from a kinome-wide evaluation (>330 kinases profiled in vitro) demonstrate a kinase selectivity. Importantly, we provide first evidence for the antiviral potential of the CDK7 inhibitor LDC4297, i.e., in exerting a block of the replication of human cytomegalovirus (HCMV) in primary human fibroblasts at nanomolar concentrations (50% effective concentration, 24.5 ± 1.3 nM). As a unique feature compared to approved antiherpesviral drugs, inhibition occurred already at the immediate-early level of HCMV gene expression. The mode of antiviral action was considered multifaceted since CDK7-regulated cellular factors that are supportive of HCMV replication were substantially affected by the inhibitors. An effect of LDC4297 was identified in the interference with HCMV-driven inactivation of retinoblastoma protein (Rb), a regulatory step generally considered a hallmark of herpesviral replication. In line with this finding, a broad inhibitory activity of the drug could be demonstrated against a selection of human and animal herpesviruses and adenoviruses, whereas other viruses only showed intermediate drug sensitivity. Summarized, the CDK7 inhibitor LDC4297 is a promising candidate for further antiviral drug development, possibly offering new options for a comprehensive approach to antiviral therapy.
Collapse
|