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Li H, Wen X, Ren Y, Fan Z, Zhang J, He G, Fu L. Targeting PI3K family with small-molecule inhibitors in cancer therapy: current clinical status and future directions. Mol Cancer 2024; 23:164. [PMID: 39127670 DOI: 10.1186/s12943-024-02072-1] [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: 06/15/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024] Open
Abstract
The Phosphatidylinositol-3-kinase (PI3K) family is well-known to comprise three classes of intracellular enzymes. Class I PI3Ks primarily function in signaling by responding to cell surface receptor stimulation, while class II and III are more involved in membrane transport. Under normal physiological conditions, the PI3K signaling network orchestrates cell growth, division, migration and survival. Aberrant activation of the PI3K signaling pathway disrupts cellular activity and metabolism, often marking the onset of cancer. Currently, the Food and Drug Administration (FDA) has approved the clinical use of five class I PI3K inhibitors. These small-molecule inhibitors, which exhibit varying selectivity for different class I PI3K family members, are primarily used in the treatment of breast cancer and hematologic malignancies. Therefore, the development of novel class I PI3K inhibitors has been a prominent research focus in the field of oncology, aiming to enhance potential therapeutic selectivity and effectiveness. In this review, we summarize the specific structures of PI3Ks and their functional roles in cancer progression. Additionally, we critically evaluate small molecule inhibitors that target class I PI3K, with a particular focus on their clinical applications in cancer treatment. Moreover, we aim to analyze therapeutic approaches for different types of cancers marked by aberrant PI3K activation and to identify potential molecular targets amenable to intervention with small-molecule inhibitors. Ultimately, we propose future directions for the development of therapeutic strategies that optimize cancer treatment outcomes by modulating the PI3K family.
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Affiliation(s)
- Hongyao Li
- Institute of Precision Drug Innovation and Cancer Center, the Second Hospital of Dalian Medical University, Dalian, 116023, China
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
- Department of Dermatology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Sichuan University, Chengdu, 610041, China
| | - Xiang Wen
- Department of Dermatology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Sichuan University, Chengdu, 610041, China
| | - Yueting Ren
- Department of Dermatology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Sichuan University, Chengdu, 610041, China
- Department of Brain Science, Faculty of Medicine, Imperial College, London, SW72AZ, UK
| | - Zhichao Fan
- Institute of Precision Drug Innovation and Cancer Center, the Second Hospital of Dalian Medical University, Dalian, 116023, China
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
- Department of Dermatology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Sichuan University, Chengdu, 610041, China
| | - Jin Zhang
- School of Pharmaceutical Sciences of Medical School, Shenzhen University, Shenzhen, 518000, China.
| | - Gu He
- Department of Dermatology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Sichuan University, Chengdu, 610041, China.
| | - Leilei Fu
- Institute of Precision Drug Innovation and Cancer Center, the Second Hospital of Dalian Medical University, Dalian, 116023, China.
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China.
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2
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Palombo R, Passacantilli I, Terracciano F, Capone A, Matteocci A, Tournier S, Alberdi A, Chiurchiù V, Volpe E, Paronetto MP. Inhibition of the PI3K/AKT/mTOR signaling promotes an M1 macrophage switch by repressing the ATF3-CXCL8 axis in Ewing sarcoma. Cancer Lett 2023; 555:216042. [PMID: 36565919 DOI: 10.1016/j.canlet.2022.216042] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/08/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
Ewing sarcomas are aggressive pediatric tumors of bone and soft tissues driven by in frame chromosomal translocations that yield fusion proteins guiding the oncogenic program. Promising alternative strategies to ameliorate current treatments involve inhibition of the PI3K/AKT/mTOR pathway. In this study, we identified the activating transcription factor 3 (ATF3) as an important mediator of the PI3K/AKT/mTOR pathway in Ewing sarcoma cells. ATF3 exerted its pro-tumoral activity through modulation of several chemokine-encoding genes, including CXCL8. The product of CXCL8, IL-8, acts as a pro-inflammatory chemokine critical for cancer progression and metastasis. We found that ATF3/IL-8 axis impacts macrophages populating the surrounding tumor microenvironment by promoting the M2 phenotype. Our study reveals valuable information on the PI3K/AKT/mTOR derived chemokine signaling in Ewing sarcoma cells: by promoting ATF3 and CXCL8 downregulation, inhibition of the PI3K/AKT/mTOR signaling promotes a proinflammatory response leading to upregulation of the protective anti-tumoral M1 macrophages.
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Affiliation(s)
- Ramona Palombo
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy; University of Rome "Foro Italico", Piazza Lauro de Bosis 6, 00135, Rome, Italy
| | - Ilaria Passacantilli
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy
| | - Francesca Terracciano
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy
| | - Alessia Capone
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy
| | - Alessandro Matteocci
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy
| | - Simon Tournier
- Plateforme Technologique IRSL UMS Saint-Louis US53 / UAR2030, Institut de Recherche Saint Louis, Université Paris Cité, France
| | - Antonio Alberdi
- Plateforme Technologique IRSL UMS Saint-Louis US53 / UAR2030, Institut de Recherche Saint Louis, Université Paris Cité, France
| | - Valerio Chiurchiù
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy; Institute of Translational Pharmacology, CNR, Via del Fosso del Cavaliere, 100, 00133, Rome, Italy
| | - Elisabetta Volpe
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy
| | - Maria Paola Paronetto
- Laboratories of Molecular and Cellular Neurobiology, Molecular Neuroimmunology, and Resolution of Neuroinflammation, IRCCS Fondazione Santa Lucia, Via del Fosso di Fiorano, 64, 00143, Rome, Italy; University of Rome "Foro Italico", Piazza Lauro de Bosis 6, 00135, Rome, Italy.
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3
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Van Dort ME, Jang Y, Bonham CA, Heist K, Palagama DSW, McDonald L, Zhang EZ, Chenevert TL, Luker GD, Ross BD. Structural effects of morpholine replacement in ZSTK474 on Class I PI3K isoform inhibition: Development of novel MEK/PI3K bifunctional inhibitors. Eur J Med Chem 2022; 229:113996. [PMID: 34802837 PMCID: PMC8792322 DOI: 10.1016/j.ejmech.2021.113996] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 11/09/2021] [Accepted: 11/10/2021] [Indexed: 02/07/2023]
Abstract
Established roles for PI3K and MAPK signaling pathways in tumorigenesis has prompted extensive research towards the discovery of small-molecule inhibitors as cancer therapeutics. However, significant compensatory regulation exists between these two signaling cascades, leading to redundancy among survival pathways. Consequently, initial clinical trials aimed at either PI3K or MEK inhibition alone have proven ineffective and highlight the need for development of targeted and innovative therapeutic combination strategies. We designed a series of PI3K inhibitor derivatives wherein a single morpholine group of the PI3K inhibitor ZSTK474 was substituted with a variety of 2-aminoethyl functional groups. Analogs with pendant hydroxyl or methoxy groups maintained low nanomolar inhibition towards PI3Kα, PI3Kγ, and PI3Kδ isoforms in contrast to those with pendant amino groups which were significantly less inhibitory. Synthesis of prototype PI3K/MEK bifunctional inhibitors (6r, 6s) was guided by the structure-activity data, where a MEK-targeting inhibitor was tethered directly via a short PEG linker to the triazine core of the PI3K inhibitor analogs. These compounds (6r, 6s) displayed nanomolar inhibition towards PI3Kα, δ, and MEK (IC50 ∼105-350 nM), and low micromolar inhibition for PI3Kβ and PI3Kγ (IC50 ∼1.5-3.9 μM) in enzymatic inhibition assays. Cell viability assays demonstrated superior anti-proliferative activity for 6s over 6r in three tumor-derived cell lines (A375, D54, SET-2), which correlated with inhibition of downstream AKT and ERK1/2 phosphorylation. Compounds 6r and 6s also demonstrated in vivo tolerability with therapeutic efficacy through reduction of kinase activation and amelioration of disease phenotypes in the JAK2V617F mutant myelofibrosis mouse cancer model. Taken together, these results support further structure optimization of 6r and 6s as promising leads for combination therapy in human cancer as a new class of PI3K/MEK bifunctional inhibitors.
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Affiliation(s)
- Marcian E Van Dort
- Center for Molecular Imaging, The University of Michigan Medical School, MI, 48109, USA; Department of Radiology, The University of Michigan Medical School, MI, 48109, USA.
| | - Youngsoon Jang
- Center for Molecular Imaging, The University of Michigan Medical School, MI, 48109, USA; Department of Radiology, The University of Michigan Medical School, MI, 48109, USA.
| | - Christopher A Bonham
- Center for Molecular Imaging, The University of Michigan Medical School, MI, 48109, USA; Department of Radiology, The University of Michigan Medical School, MI, 48109, USA.
| | - Kevin Heist
- Center for Molecular Imaging, The University of Michigan Medical School, MI, 48109, USA; Department of Radiology, The University of Michigan Medical School, MI, 48109, USA.
| | - Dilrukshika S W Palagama
- Center for Molecular Imaging, The University of Michigan Medical School, MI, 48109, USA; Department of Radiology, The University of Michigan Medical School, MI, 48109, USA.
| | - Lucas McDonald
- Center for Molecular Imaging, The University of Michigan Medical School, MI, 48109, USA; Department of Radiology, The University of Michigan Medical School, MI, 48109, USA.
| | - Edward Z Zhang
- Center for Molecular Imaging, The University of Michigan Medical School, MI, 48109, USA; Department of Radiology, The University of Michigan Medical School, MI, 48109, USA.
| | - Thomas L Chenevert
- Center for Molecular Imaging, The University of Michigan Medical School, MI, 48109, USA; Department of Radiology, The University of Michigan Medical School, MI, 48109, USA.
| | - Gary D Luker
- Center for Molecular Imaging, The University of Michigan Medical School, MI, 48109, USA; Department of Radiology, The University of Michigan Medical School, MI, 48109, USA.
| | - Brian D Ross
- Center for Molecular Imaging, The University of Michigan Medical School, MI, 48109, USA; Department of Radiology, The University of Michigan Medical School, MI, 48109, USA; Department of Biological Chemistry, The University of Michigan Medical School, MI, 48109, USA.
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4
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Liu K, Li D, Zheng W, Shi M, Chen Y, Tang M, Yang T, Zhao M, Deng D, Zhang C, Liu J, Yuan X, Yang Z, Chen L. Discovery, Optimization, and Evaluation of Quinazolinone Derivatives with Novel Linkers as Orally Efficacious Phosphoinositide-3-Kinase Delta Inhibitors for Treatment of Inflammatory Diseases. J Med Chem 2021; 64:8951-8970. [PMID: 34138567 DOI: 10.1021/acs.jmedchem.1c00004] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Guided by molecular docking, a commonly used open-chain linker was cyclized into a five-membered pyrrolidine to lock the overall conformation of the propeller-shaped molecule. Different substituents were introduced into the pyrrolidine moiety to block oxidative metabolism. Surprisingly, it was found that a small methyl substituent could be used to alleviate the oxidative metabolism of pyrrolidine while maintaining or enhancing potency, which could be described as a "magic methyl". Further optimization around the "3rd blade" of the propeller led to identification of a series of potent and selective PI3Kδ inhibitors. Among them, compound 50 afforded an optimum balance of PK profiles and potency. Oral administration of 50 attenuated the arthritis severity in a dose-dependent manner in a collagen-induced arthritis model without obvious toxicity. Furthermore, 50 demonstrated excellent pharmacokinetic properties with high bioavailability, suggesting that 50 might be an acceptable candidate for treatment of inflammatory diseases.
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Affiliation(s)
- Kongjun Liu
- Laboratory of Natural and Targeted Small Molecule Drugs, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Dan Li
- Laboratory of Natural and Targeted Small Molecule Drugs, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Wei Zheng
- Laboratory of Natural and Targeted Small Molecule Drugs, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Mingsong Shi
- Laboratory of Natural and Targeted Small Molecule Drugs, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Yong Chen
- Laboratory of Natural and Targeted Small Molecule Drugs, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Minghai Tang
- Laboratory of Natural and Targeted Small Molecule Drugs, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Tao Yang
- Laboratory of Natural and Targeted Small Molecule Drugs, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Min Zhao
- Laboratory of Natural and Targeted Small Molecule Drugs, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Dexin Deng
- Laboratory of Natural and Targeted Small Molecule Drugs, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Chufeng Zhang
- Laboratory of Natural and Targeted Small Molecule Drugs, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Jiang Liu
- Laboratory of Natural and Targeted Small Molecule Drugs, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Xue Yuan
- Laboratory of Natural and Targeted Small Molecule Drugs, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China
| | - Zhuang Yang
- Laboratory of Natural and Targeted Small Molecule Drugs, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China.,Chengdu Zenitar Biomedical Technology Co., Ltd., Chengdu 610041, China
| | - Lijuan Chen
- Laboratory of Natural and Targeted Small Molecule Drugs, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China.,Chengdu Zenitar Biomedical Technology Co., Ltd., Chengdu 610041, China
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5
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Zając A, Sumorek-Wiadro J, Langner E, Wertel I, Maciejczyk A, Pawlikowska-Pawlęga B, Pawelec J, Wasiak M, Hułas-Stasiak M, Bądziul D, Rzeski W, Reichert M, Jakubowicz-Gil J. Involvement of PI3K Pathway in Glioma Cell Resistance to Temozolomide Treatment. Int J Mol Sci 2021; 22:ijms22105155. [PMID: 34068110 PMCID: PMC8152763 DOI: 10.3390/ijms22105155] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/15/2021] [Accepted: 05/10/2021] [Indexed: 12/16/2022] Open
Abstract
The aim of the study was to investigate the anticancer potential of LY294002 (PI3K inhibitor) and temozolomide using glioblastoma multiforme (T98G) and anaplastic astrocytoma (MOGGCCM) cells. Apoptosis, autophagy, necrosis, and granules in the cytoplasm were identified microscopically (fluorescence and electron microscopes). The mitochondrial membrane potential was studied by flow cytometry. The activity of caspases 3, 8, and 9 and Akt was evaluated fluorometrically, while the expression of Beclin 1, PI3K, Akt, mTOR, caspase 12, and Hsp27 was determined by immunoblotting. SiRNA was used to block Hsp27 and PI3K expression. Cell migration and localization of Hsp27 were tested with the wound healing assay and immunocytochemistry, respectively. LY294002 effectively diminished the migratory potential and increased programmed death of T98G and MOGGCCM. Autophagy was dominant in MOGGCCM, while apoptosis was dominant in T98G. LY294002 with temozolomide did not potentiate cell death but redirected autophagy toward apoptosis, which was correlated with ER stress. A similar effect was observed after blocking PI3K expression with siRNA. Transfection with Hsp27 siRNA significantly increased apoptosis related to ER stress. Our results indicate that inhibition of the PI3K/Akt/mTOR pathway sensitizes glioma cells to apoptosis upon temozolomide treatment, which was correlated with ER stress. Hsp27 increases the resistance of glioma cells to cell death upon temozolomide treatment.
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Affiliation(s)
- Adrian Zając
- Department of Functional Anatomy and Cytobiology, Institute of Biological Sciences, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland; (A.Z.); (J.S.-W.); (A.M.); (B.P.-P.); (M.H.-S.); (W.R.)
| | - Joanna Sumorek-Wiadro
- Department of Functional Anatomy and Cytobiology, Institute of Biological Sciences, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland; (A.Z.); (J.S.-W.); (A.M.); (B.P.-P.); (M.H.-S.); (W.R.)
| | - Ewa Langner
- Department of Medical Biology, Institute of Rural Health, Jaczewskiego 2, 20-950 Lublin, Poland;
| | - Iwona Wertel
- Independent Laboratory of Cancer Diagnostics and Immunology, 1st Chair and Department of Oncological Gynaecology and Gynaecology, Medical University of Lublin, Staszica 16, 20-081 Lublin, Poland;
| | - Aleksandra Maciejczyk
- Department of Functional Anatomy and Cytobiology, Institute of Biological Sciences, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland; (A.Z.); (J.S.-W.); (A.M.); (B.P.-P.); (M.H.-S.); (W.R.)
| | - Bożena Pawlikowska-Pawlęga
- Department of Functional Anatomy and Cytobiology, Institute of Biological Sciences, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland; (A.Z.); (J.S.-W.); (A.M.); (B.P.-P.); (M.H.-S.); (W.R.)
| | - Jarosław Pawelec
- Institute Microscopy Laboratory, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland;
| | - Magdalena Wasiak
- Department of Pathological Anatomy, National Veterinary Research Institute, 57 Partyzantow Avenue, 24-100 Pulawy, Poland; (M.W.); (M.R.)
| | - Monika Hułas-Stasiak
- Department of Functional Anatomy and Cytobiology, Institute of Biological Sciences, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland; (A.Z.); (J.S.-W.); (A.M.); (B.P.-P.); (M.H.-S.); (W.R.)
| | - Dorota Bądziul
- Department of Biology, Institute of Medical Sciences, Medical College of Rzeszow University, Rejtana 16 C, 35-959 Rzeszów, Poland;
| | - Wojciech Rzeski
- Department of Functional Anatomy and Cytobiology, Institute of Biological Sciences, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland; (A.Z.); (J.S.-W.); (A.M.); (B.P.-P.); (M.H.-S.); (W.R.)
- Department of Medical Biology, Institute of Rural Health, Jaczewskiego 2, 20-950 Lublin, Poland;
| | - Michał Reichert
- Department of Pathological Anatomy, National Veterinary Research Institute, 57 Partyzantow Avenue, 24-100 Pulawy, Poland; (M.W.); (M.R.)
| | - Joanna Jakubowicz-Gil
- Department of Functional Anatomy and Cytobiology, Institute of Biological Sciences, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland; (A.Z.); (J.S.-W.); (A.M.); (B.P.-P.); (M.H.-S.); (W.R.)
- Correspondence:
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Jia WQ, Feng XY, Liu YY, Han ZZ, Jing Z, Xu WR, Cheng XC. Identification of Phosphoinositide-3 Kinases Delta and Gamma Dual Inhibitors Based on the p110δ/γ Crystal Structure. LETT DRUG DES DISCOV 2020. [DOI: 10.2174/1570180816666190730163431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Phosphoinositide-3 kinases (PI3Ks) are key signaling molecules that affect
a diverse array of biological processes in cells, including proliferation, differentiation, survival, and
metabolism. The abnormal activity of PI3K signals is closely related to the occurrence of many diseases,
which has become a very promising drug target, especially for the treatment of cancer.
PI3Kδ/γ inhibitors can reduce toxicity concerns for chronic indications such as asthma and rheumatoid
arthritis compared with pan PI3Ks inhibitors.
Methods:
With the aim of finding more effective PI3Kδ/γ dual inhibitors, virtual screening,
ADMET prediction Molecular Dynamics (MD) simulations and MM-GBSA were executed based
on the known p110δ/γ crystal structure. Compound ZINC28564067 with high docking score and
low toxicity was obtained.
Results:
By MD simulations and MM-GBSA, we could observe that ZINC28564067 had more favorable
conformation binding to the PI3Kδ/γ than the original ligands.
Conclusion:
The results provided a rapid approach for the discovery of novel PI3Kδ/γ dual inhibitors
which might be a potential anti-tumor lead compound.
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Affiliation(s)
- Wen-Qing Jia
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Xiao-Yan Feng
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Ya-Ya Liu
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Zhen-Zhen Han
- Baokang Hospital, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Zhi Jing
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Wei-Ren Xu
- Tianjin Key Laboratory of Molecular Design and Drug Discovery, Tianjin Institute of Pharmaceutical Research, Tianjin 300193, China
| | - Xian-Chao Cheng
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
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7
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Jia H, Dai G, Su W, Xiao K, Weng J, Zhang Z, Wang Q, Yuan T, Shi F, Zhang Z, Chen W, Sai Y, Wang J, Li X, Cai Y, Yu J, Ren P, Venable J, Rao T, Edwards JP, Bembenek SD. Discovery, Optimization, and Evaluation of Potent and Highly Selective PI3Kγ-PI3Kδ Dual Inhibitors. J Med Chem 2019; 62:4936-4948. [PMID: 31033293 DOI: 10.1021/acs.jmedchem.8b02014] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An electronic density model was developed and used to identify a novel pyrrolotriazinone replacement for a quinazolinone, a commonly used moiety to impart selectivity in inhibitors for PI3Kγ and PI3Kδ. Guided by molecular docking, this new specificity piece was then linked to the hinge-binding region of the inhibitor using a novel cyclic moiety. Further structure-activity relationship optimization around the hinge region led to the discovery of candidate 26, a highly potent and selective PI3Kγ-PI3Kδ dual inhibitor with favorable drug metabolism and pharmacokinetic properties in preclinical species.
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Affiliation(s)
- Hong Jia
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Guangxiu Dai
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Weiguo Su
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Kun Xiao
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Jianyang Weng
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Zhulin Zhang
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Qing Wang
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Tianhai Yuan
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Fuying Shi
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Zheng Zhang
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Wei Chen
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Yang Sai
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Jian Wang
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Xiong Li
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Yu Cai
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Jun Yu
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Ping Ren
- Hutchison MediPharma Limited , Building 4, 720 Cai Lun Road, Zhangjiang Hi-Tech Park , Shanghai 201203 , China
| | - Jennifer Venable
- Janssen Pharmaceuticals Research & Development , 3210 Merryfield Row , San Diego , California 92121 , United States
| | - Tadimeti Rao
- Janssen Pharmaceuticals Research & Development , 3210 Merryfield Row , San Diego , California 92121 , United States
| | - James P Edwards
- Janssen Pharmaceutical Research & Development , 1400 McKean Road , Spring House , Pennsylvania 19477 , United States
| | - Scott D Bembenek
- Janssen Pharmaceuticals Research & Development , 3210 Merryfield Row , San Diego , California 92121 , United States
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8
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Bahekar R, Dave B, Soman S, Patel D, Chopade R, Funde R, Kumar J, Sachchidanand S, Giri P, Chatterjee A, Mahapatra J, Vyas P, Ghoshdastidar K, Bandyopadhyay D, Desai RC. Discovery of 1,3-dihydro-2H-imidazo[4,5-c]quinolin-2-ones based novel, potent and PI3Kδ selective inhibitors. Bioorg Med Chem Lett 2019; 29:1313-1319. [PMID: 30975623 DOI: 10.1016/j.bmcl.2019.04.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 03/19/2019] [Accepted: 04/03/2019] [Indexed: 12/11/2022]
Abstract
PI3Kδ is implicated in various inflammatory and autoimmune diseases. For the effective treatment of chronic immunological disorders such as rheumatoid arthritis, it is essential to develop isoform selective PI3Kδ inhibitors. Structure guided optimization of an imidazo-quinolinones based pan-PI3K/m-TOR inhibitor (Dactolisib) led to the discovery of a potent and orally bioavailable PI3Kδ isoform selective inhibitor (10h), with an improved efficacy in the animal models.
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Affiliation(s)
- Rajesh Bahekar
- Department of Medicinal Chemistry, Zydus Research Centre, Sarkhej-Bavla, N.H. 8A Moraiya, Ahmedabad 382210, India.
| | - Bhushan Dave
- Department of Medicinal Chemistry, Zydus Research Centre, Sarkhej-Bavla, N.H. 8A Moraiya, Ahmedabad 382210, India; Department of Chemistry, Faculty of Science, M.S. University of Baroda, Vadodara 390002, India
| | - Shubhangi Soman
- Department of Chemistry, Faculty of Science, M.S. University of Baroda, Vadodara 390002, India
| | - Dipam Patel
- Department of Medicinal Chemistry, Zydus Research Centre, Sarkhej-Bavla, N.H. 8A Moraiya, Ahmedabad 382210, India
| | - Rajendra Chopade
- Department of Medicinal Chemistry, Zydus Research Centre, Sarkhej-Bavla, N.H. 8A Moraiya, Ahmedabad 382210, India
| | - Radhika Funde
- Department of Medicinal Chemistry, Zydus Research Centre, Sarkhej-Bavla, N.H. 8A Moraiya, Ahmedabad 382210, India
| | - Jeevan Kumar
- Department of Bioinformatics, Zydus Research Centre, Sarkhej-Bavla, N.H. 8A Moraiya, Ahmedabad 382210, India
| | - S Sachchidanand
- Department of Bioinformatics, Zydus Research Centre, Sarkhej-Bavla, N.H. 8A Moraiya, Ahmedabad 382210, India
| | - Poonam Giri
- Department of Pharmacology, Zydus Research Centre, Sarkhej-Bavla, N.H. 8A Moraiya, Ahmedabad 382210, India
| | - Abhijit Chatterjee
- Department of Pharmacology, Zydus Research Centre, Sarkhej-Bavla, N.H. 8A Moraiya, Ahmedabad 382210, India
| | - Jogeswar Mahapatra
- Department of Pharmacology, Zydus Research Centre, Sarkhej-Bavla, N.H. 8A Moraiya, Ahmedabad 382210, India
| | - Purvi Vyas
- Department of Cell Biology, Zydus Research Centre, Sarkhej-Bavla, N.H. 8A Moraiya, Ahmedabad 382210, India
| | - Krishnarup Ghoshdastidar
- Department of Cell Biology, Zydus Research Centre, Sarkhej-Bavla, N.H. 8A Moraiya, Ahmedabad 382210, India
| | - Debdutta Bandyopadhyay
- Department of Cell Biology, Zydus Research Centre, Sarkhej-Bavla, N.H. 8A Moraiya, Ahmedabad 382210, India
| | - Ranjit C Desai
- Department of Medicinal Chemistry, Zydus Research Centre, Sarkhej-Bavla, N.H. 8A Moraiya, Ahmedabad 382210, India
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9
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Liang X, Li F, Chen C, Jiang Z, Wang A, Liu X, Ge J, Hu Z, Yu K, Wang W, Zou F, Liu Q, Wang B, Wang L, Zhang S, Wang Y, Liu Q, Liu J. Discovery of (S)-2-amino-N-(5-(6-chloro-5-(3-methylphenylsulfonamido)pyridin-3-yl)-4-methylthiazol-2-yl)-3-methylbutanamide (CHMFL-PI3KD-317) as a potent and selective phosphoinositide 3-kinase delta (PI3Kδ) inhibitor. Eur J Med Chem 2018; 156:831-846. [DOI: 10.1016/j.ejmech.2018.07.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 07/05/2018] [Accepted: 07/15/2018] [Indexed: 01/02/2023]
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10
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Come JH, Collier PN, Henderson JA, Pierce AC, Davies RJ, Le Tiran A, O'Dowd H, Bandarage UK, Cao J, Deininger D, Grey R, Krueger EB, Lowe DB, Liang J, Liao Y, Messersmith D, Nanthakumar S, Sizensky E, Wang J, Xu J, Chin EY, Damagnez V, Doran JD, Dworakowski W, Griffith JP, Jacobs MD, Khare-Pandit S, Mahajan S, Moody CS, Aronov AM. Design and Synthesis of a Novel Series of Orally Bioavailable, CNS-Penetrant, Isoform Selective Phosphoinositide 3-Kinase γ (PI3Kγ) Inhibitors with Potential for the Treatment of Multiple Sclerosis (MS). J Med Chem 2018; 61:5245-5256. [PMID: 29847724 DOI: 10.1021/acs.jmedchem.8b00085] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The lipid kinase phosphoinositide 3-kinase γ (PI3Kγ) has attracted attention as a potential target to treat a variety of autoimmune disorders, including multiple sclerosis, due to its role in immune modulation and microglial activation. By minimizing the number of hydrogen bond donors while targeting a previously uncovered selectivity pocket adjacent to the ATP binding site of PI3Kγ, we discovered a series of azaisoindolinones as selective, brain penetrant inhibitors of PI3Kγ. This ultimately led to the discovery of 16, an orally bioavailable compound that showed efficacy in murine experimental autoimmune encephalomyelitis (EAE), a preclinical model of multiple sclerosis.
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Affiliation(s)
- Jon H Come
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Philip N Collier
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - James A Henderson
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Albert C Pierce
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Robert J Davies
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Arnaud Le Tiran
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Hardwin O'Dowd
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Upul K Bandarage
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Jingrong Cao
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - David Deininger
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Ron Grey
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Elaine B Krueger
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Derek B Lowe
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Jianglin Liang
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Yusheng Liao
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - David Messersmith
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Suganthi Nanthakumar
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Emmanuelle Sizensky
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Jian Wang
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Jinwang Xu
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Elaine Y Chin
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Veronique Damagnez
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - John D Doran
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Wojciech Dworakowski
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - James P Griffith
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Marc D Jacobs
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Suvarna Khare-Pandit
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Sudipta Mahajan
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Cameron S Moody
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
| | - Alex M Aronov
- Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States
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11
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Liu Y, Wan WZ, Li Y, Zhou GL, Liu XG. Recent development of ATP-competitive small molecule phosphatidylinostitol-3-kinase inhibitors as anticancer agents. Oncotarget 2018; 8:7181-7200. [PMID: 27769061 PMCID: PMC5351699 DOI: 10.18632/oncotarget.12742] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 10/04/2016] [Indexed: 11/25/2022] Open
Abstract
Phosphatidylinostitol-3-kinase (PI3K) is the potential anticancer target in the PI3K/Akt/ mTOR pathway. Here we reviewed the ATP-competitive small molecule PI3K inhibitors in the past few years, including the pan Class I PI3K inhibitors, the isoform-specific PI3K inhibitors and/or the PI3K/mTOR dual inhibitors.
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Affiliation(s)
- Yu Liu
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan, P. R. China.,Department of Hematology, Qilu Hospital, Shandong University, Jinan, P. R. China
| | - Wen-Zhu Wan
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan, P. R. China
| | - Yan Li
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan, P. R. China
| | - Guan-Lian Zhou
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan, P. R. China
| | - Xin-Guang Liu
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, P. R. China
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12
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Vergaro V, Civallero M, Citti C, Cosenza M, Baldassarre F, Cannazza G, Pozzi S, Sacchi S, Fanizzi FP, Ciccarella G. Cell-Penetrating CaCO₃ Nanocrystals for Improved Transport of NVP-BEZ235 across Membrane Barrier in T-Cell Lymphoma. Cancers (Basel) 2018; 10:E31. [PMID: 29370086 PMCID: PMC5836063 DOI: 10.3390/cancers10020031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 01/15/2018] [Accepted: 01/19/2018] [Indexed: 12/14/2022] Open
Abstract
Owing to their nano-sized porous structure, CaCO₃ nanocrystals (CaCO₃NCs) hold the promise to be utilized as desired materials for encapsulating molecules which demonstrate wide promise in drug delivery. We evaluate the possibility to encapsulate and release NVP-BEZ235, a novel and potent dual PI3K/mTOR inhibitor that is currently in phase I/II clinical trials for advanced solid tumors, from the CaCO₃NCs. Its chemical nature shows some intrinsic limitations which induce to administer high doses leading to toxicity; to overcome these problems, here we proposed a strategy to enhance its intracellular penetration and its biological activity. Pristine CaCO₃ NCs biocompatibility, cell interactions and internalization in in vitro experiments on T-cell lymphoma line, were studied. Confocal microscopy was used to monitor NCs-cell interactions and cellular uptake. We have further investigated the interaction nature and release mechanism of drug loaded/released within/from the NCs using an alternative approach based on liquid chromatography coupled to mass spectrometry. Our approach provides a good loading efficiency, therefore this drug delivery system was validated for biological activity in T-cell lymphoma: the anti-proliferative test and western blot results are very interesting because the proposed nano-formulation has an efficiency higher than free drug at the same nominal concentration.
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Affiliation(s)
- Viviana Vergaro
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali, Università del Salento & UdR INSTM di Lecce, Campus Universitario, Via Monteroni, 73100 Lecce, Italy.
| | - Monica Civallero
- Dipartimento di Medicina Diagnostica, Clinica e di Sanità Pubblica, Università di Modena & Reggio Emilia, via Campi 287, 41125 Modena, Italy.
| | - Cinzia Citti
- Dipartimento di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy.
- CNR NANOTEC-Istituto di Nanotecnologia c/o Campus Ecotekne, Università del Salento, Via Monteroni, 73100 Lecce, Italy.
| | - Maria Cosenza
- Dipartimento di Medicina Diagnostica, Clinica e di Sanità Pubblica, Università di Modena & Reggio Emilia, via Campi 287, 41125 Modena, Italy.
| | - Francesca Baldassarre
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali, Università del Salento & UdR INSTM di Lecce, Campus Universitario, Via Monteroni, 73100 Lecce, Italy.
- CNR NANOTEC-Istituto di Nanotecnologia c/o Campus Ecotekne, Università del Salento, Via Monteroni, 73100 Lecce, Italy.
| | - Giuseppe Cannazza
- Dipartimento di Scienze della Vita, Università di Modena e Reggio Emilia, Via Campi 103, 41125 Modena, Italy.
- CNR NANOTEC-Istituto di Nanotecnologia c/o Campus Ecotekne, Università del Salento, Via Monteroni, 73100 Lecce, Italy.
| | - Samantha Pozzi
- Dipartimento di Medicina Diagnostica, Clinica e di Sanità Pubblica, Università di Modena & Reggio Emilia, via Campi 287, 41125 Modena, Italy.
| | - Stefano Sacchi
- Dipartimento di Medicina Diagnostica, Clinica e di Sanità Pubblica, Università di Modena & Reggio Emilia, via Campi 287, 41125 Modena, Italy.
| | - Francesco Paolo Fanizzi
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali, Università del Salento, Via Monteroni, 73100 Lecce, Italy.
| | - Giuseppe Ciccarella
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali, Università del Salento & UdR INSTM di Lecce, Campus Universitario, Via Monteroni, 73100 Lecce, Italy.
- CNR NANOTEC-Istituto di Nanotecnologia c/o Campus Ecotekne, Università del Salento, Via Monteroni, 73100 Lecce, Italy.
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13
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Survival kinase genes present prognostic significance in glioblastoma. Oncotarget 2018; 7:20140-51. [PMID: 26956052 PMCID: PMC4991443 DOI: 10.18632/oncotarget.7917] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 02/14/2016] [Indexed: 01/28/2023] Open
Abstract
Cancer biomarkers with a strong predictive power for diagnosis/prognosis and a potential to be therapeutic targets have not yet been fully established. Here we employed a loss-of-function screen in glioblastoma (GBM), an infiltrative brain tumor with a dismal prognosis, and identified 20 survival kinase genes (SKGs). Survival analyses using The Cancer Genome Atlas (TCGA) datasets revealed that the expression of CDCP1, CDKL5, CSNK1E, IRAK3, LATS2, PRKAA1, STK3, TBRG4, and ULK4 stratified GBM prognosis with or without temozolomide (TMZ) treatment as a covariate. For the first time, we found that GBM patients with a high level of NEK9 and PIK3CB had a greater chance of having recurrent tumors. The expression of CDCP1, IGF2R, IRAK3, LATS2, PIK3CB, ULK4, or VRK1 in primary GBM tumors was associated with recurrence-related prognosis. Notably, the level of PIK3CB in recurrent tumors was much higher than that in newly diagnosed ones. Congruent with these results, genes in the PI3K/AKT pathway showed a significantly strong correlation with recurrence rate, further highlighting the pivotal role of PIK3CB in the disease progression. Importantly, 17 SKGs together presented a novel GBM prognostic signature. SKGs identified herein are associated with recurrence rate and present prognostic significance in GBM, thereby becoming attractive therapeutic targets.
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14
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Chiang PC, Sutherlin D, Pang J, Salphati L. Investigation of Dose-Dependent Factors Limiting Oral Bioavailability: Case Study With the PI3K-δ Inhibitor. J Pharm Sci 2017; 105:1802-1809. [PMID: 27238480 DOI: 10.1016/j.xphs.2016.04.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 03/31/2016] [Accepted: 04/01/2016] [Indexed: 11/20/2022]
Abstract
It is understood that a potential issue for drugs with poor aqueous solubility is low oral absorption. If oral exposure issues arise when working with a low solubility drug candidate, the common action is to rely on enabling formulations to solve the issue. However, this approach becomes troublesome in the pre-clinical setting where compound absorption, distribution, metabolism, excretion properties are suboptimal and more factors limiting bioavailability may be at play. A narrow focus on solubility enhancement without a full understanding of compound absorption, distribution, metabolism, excretion properties can produce data that cloak the actual phenomena driving exposure. Compound 1 is a potent and selective PI3Kdelta inhibitor with poor aqueous solubility. In a pharmacokinetic study on dogs, exposure was found to be less than dose-linear. Besides the solubility, further investigations were conducted to identify other factors limiting oral exposure. It was observed that these limiting factors are dose dependent. Results from modeling pharmacokinetic under low-dose conditions suggest that exposure is significantly limited by metabolism and no exposure improvements should be expected from enabled formulations. Furthermore, enabling formulations are expected to exert a beneficial influence at higher doses. An in vivo test was conducted in dogs to verify this phenomenon.
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Affiliation(s)
- Po-Chang Chiang
- Small Molecule Research, Genentech, 1 DNA Way, South San Francisco, California 94080.
| | - Daniel Sutherlin
- Small Molecule Research, Genentech, 1 DNA Way, South San Francisco, California 94080
| | - Jodie Pang
- Small Molecule Research, Genentech, 1 DNA Way, South San Francisco, California 94080
| | - Laurent Salphati
- Small Molecule Research, Genentech, 1 DNA Way, South San Francisco, California 94080
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15
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Chiang PC, Pang J, Liu J, Salphati L. An Investigation of Oral Exposure Variability and Formulation Strategy: A Case Study of PI3Kδ Inhibitor and Physiologically Based Pharmacokinetic Modeling in Beagle Dogs. J Pharm Sci 2017; 107:466-475. [PMID: 28652157 DOI: 10.1016/j.xphs.2017.06.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 05/25/2017] [Accepted: 06/08/2017] [Indexed: 10/19/2022]
Abstract
It is well acknowledged that drugs with poor aqueous solubility are often associated with poor oral absorption. Fortunately, drugs with a basic pKa can take advantage of solubilization in the stomach under the acidic environment to improve exposure. Consequently, high in vivo variability is often observed when stomach pH is altered. When issue encountered, enabling formulations are often used to solve the problem. However, each enabling formulation has its limitations and the situation can be further complicated by other absorption distribution metabolism elimination parameters. Therefore, formulation strategies need to consider various scenarios in order to be effective. Compound 1 is a potent phosphoinositide 3-kinase delta inhibitor with poor intrinsic solubility and 2 basic pKas. It was dosed as a suspension in dogs and found to have mediocre oral bioavailability with high variability. It was hypothesized that this variability was caused by their stomach pH variability. Pharmacokinetic modeling suggested that the issue could be improved with particle size reduction. Meanwhile, it was found that although the Madin-Darby canine kidney permeability was reasonable, Madin-Darby canine kidney transfected with human MDR1 gene (MDCK-MDR1) suggested that Compound 1 is an efflux transporter substrate. Findings were integrated into the design for in vivo studies in dogs. Data obtained from those studies allowed us to quickly narrow down the formulation approaches.
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Affiliation(s)
- Po-Chang Chiang
- Department of SMPS, Genentech, 1 DNA Way, South San Francisco, California 94080.
| | - Jodie Pang
- Department of Drug Metabolism and Pharmacokinetics, Genentech, 1 DNA Way, South San Francisco, California 94080
| | - Jia Liu
- Department of SMPS, Genentech, 1 DNA Way, South San Francisco, California 94080
| | - Laurent Salphati
- Department of Drug Metabolism and Pharmacokinetics, Genentech, 1 DNA Way, South San Francisco, California 94080
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16
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Liu Q, Shi Q, Marcoux D, Batt DG, Cornelius L, Qin LY, Ruan Z, Neels J, Beaudoin-Bertrand M, Srivastava AS, Li L, Cherney RJ, Gong H, Watterson SH, Weigelt C, Gillooly KM, McIntyre KW, Xie JH, Obermeier MT, Fura A, Sleczka B, Stefanski K, Fancher RM, Padmanabhan S, Rp T, Kundu I, Rajareddy K, Smith R, Hennan JK, Xing D, Fan J, Levesque PC, Ruan Q, Pitt S, Zhang R, Pedicord D, Pan J, Yarde M, Lu H, Lippy J, Goldstine C, Skala S, Rampulla RA, Mathur A, Gupta A, Arunachalam PN, Sack JS, Muckelbauer JK, Cvijic ME, Salter-Cid LM, Bhide RS, Poss MA, Hynes J, Carter PH, Macor JE, Ruepp S, Schieven GL, Tino JA. Identification of a Potent, Selective, and Efficacious Phosphatidylinositol 3-Kinase δ (PI3Kδ) Inhibitor for the Treatment of Immunological Disorders. J Med Chem 2017; 60:5193-5208. [PMID: 28541707 DOI: 10.1021/acs.jmedchem.7b00618] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PI3Kδ plays an important role controlling immune cell function and has therefore been identified as a potential target for the treatment of immunological disorders. This article highlights our work toward the identification of a potent, selective, and efficacious PI3Kδ inhibitor. Through careful SAR, the successful replacement of a polar pyrazole group by a simple chloro or trifluoromethyl group led to improved Caco-2 permeability, reduced Caco-2 efflux, reduced hERG PC activity, and increased selectivity profile while maintaining potency in the CD69 hWB assay. The optimization of the aryl substitution then identified a 4'-CN group that improved the human/rodent correlation in microsomal metabolic stability. Our lead molecule is very potent in PK/PD assays and highly efficacious in a mouse collagen-induced arthritis model.
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Affiliation(s)
- Qingjie Liu
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Qing Shi
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - David Marcoux
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Douglas G Batt
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Lyndon Cornelius
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Lan-Ying Qin
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Zheming Ruan
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - James Neels
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Myra Beaudoin-Bertrand
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Anurag S Srivastava
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Ling Li
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Robert J Cherney
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Hua Gong
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Scott H Watterson
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Carolyn Weigelt
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Kathleen M Gillooly
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Kim W McIntyre
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Jenny H Xie
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Mary T Obermeier
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Aberra Fura
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Bogdan Sleczka
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Kevin Stefanski
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - R M Fancher
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Shweta Padmanabhan
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Centre , Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bengaluru 560099, India
| | - Thatipamula Rp
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Centre , Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bengaluru 560099, India
| | - Ipsit Kundu
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Centre , Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bengaluru 560099, India
| | | | - Rodney Smith
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - James K Hennan
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Dezhi Xing
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Jingsong Fan
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Paul C Levesque
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Qian Ruan
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Sidney Pitt
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Rosemary Zhang
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Donna Pedicord
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Jie Pan
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Melissa Yarde
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Hao Lu
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Jonathan Lippy
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Christine Goldstine
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Stacey Skala
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Richard A Rampulla
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Arvind Mathur
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Anuradha Gupta
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Centre , Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bengaluru 560099, India
| | - Pirama Nayagam Arunachalam
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Centre , Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bengaluru 560099, India
| | - John S Sack
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Jodi K Muckelbauer
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Mary Ellen Cvijic
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Luisa M Salter-Cid
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Rajeev S Bhide
- Department of Discovery Synthesis, Biocon Bristol-Myers Squibb Research Centre , Biocon Park, Bommasandra IV Phase, Jigani Link Road, Bengaluru 560099, India
| | - Michael A Poss
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - John Hynes
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Percy H Carter
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | | | - Stefan Ruepp
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Gary L Schieven
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
| | - Joseph A Tino
- Research & Development, Bristol-Myers Squibb Company , Route 206 and Province Line Road, Princeton, New Jersey 08543, United States
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17
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Fernández A. Non-Debye frustrated hydration steers biomolecular association: interfacial tension for the drug designer. FEBS Lett 2016; 590:3481-3491. [PMID: 27616564 DOI: 10.1002/1873-3468.12418] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 08/30/2016] [Accepted: 08/31/2016] [Indexed: 11/11/2022]
Abstract
Many cellular functions involve the assembly of biomolecular complexes, a process mediated by water that gets displaced as subunits bind. This process affects water frustration, that is, the number of unmet hydrogen-bonding opportunities at the protein-water interface. By searching for least-frustrated aqueous interfaces, this study delineates the role of frustration in steering molecular assemblage. The search entails a trajectory sampling using a functional that measures the gradient of frustration and computing the resulting non-Debye electrostatics within relaxation times for coupled protein-water systems. The minimal frustration principle is validated against spectroscopic measurements of frustration-dependent dielectric relaxation, affinity scanning of protein-protein interfaces, and NMR-inferred association propensities of protein-complex intermediates. The methods are applied to drug design, revealing the targetable nature of the aqueous interface.
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Affiliation(s)
- Ariel Fernández
- Argentine Mathematics Institute (I. A. M.), National Research Council (CONICET), Buenos Aires, Argentina. .,AF Innovation, Pharmaceutical Consultancy GmbH, Buenos Aires, Argentina.
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18
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Roohi A, Hojjat-Farsangi M. Recent advances in targeting mTOR signaling pathway using small molecule inhibitors. J Drug Target 2016; 25:189-201. [PMID: 27632356 DOI: 10.1080/1061186x.2016.1236112] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Targeted-based cancer therapy (TBCT) or personalized medicine is one of the main treatment modalities for cancer that has been developed to decrease the undesirable effects of chemotherapy. Targeted therapy inhibits the growth of tumor cells by interrupting with particular molecules required for tumorigenesis and proliferation of tumor cells rather than interfering with dividing normal cells. Therefore, targeted therapies are anticipated to be more efficient than former tumor treatment agents with minimal side effects on non-tumor cells. Small molecule inhibitors (SMIs) are currently one of the most investigated anti-tumor agents of TBCT. These small organic agents target several vital molecules involved in cell biological processes and induce target cells apoptosis and necrosis. Mechanistic (mammalian) target of rapamycin (mTOR) complexes (mTORC1/2) control different intracellular processes, including growth, proliferation, angiogenesis and metabolism. Signaling pathways, in which mTOR complexes are involved in are usually dysregulated in various tumors and have been shown to be ideal targets for SMIs. Currently, different mTOR-SMIs are in the clinic for the treatment of cancer patients, and several others are in preclinical or clinical settings. In this review, we summarize recent advances in developing different mTOR inhibitors, which are currently in preclinical and clinical investigations or have been approved for cancer treatment.
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Affiliation(s)
- Azam Roohi
- a Department of Immunology, School of Public Health , Tehran University of Medical Sciences , Tehran , Iran
| | - Mohammad Hojjat-Farsangi
- b Department of Oncology-Pathology, Immune and Gene therapy Lab , Cancer Center Karolinska (CCK), Karolinska University Hospital Solna and Karolinska Institute , Stockholm , Sweden.,c Department of Immunology, School of Medicine , Bushehr University of Medical Sciences , Bushehr , Iran
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19
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Hoegenauer K, Soldermann N, Stauffer F, Furet P, Graveleau N, Smith A, Hebach C, Hollingworth GJ, Lewis I, Gutmann S, Rummel G, Knapp M, Wolf R, Blanz J, Feifel R, Burkhart C, Zécri F. Discovery and Pharmacological Characterization of Novel Quinazoline-Based PI3K Delta-Selective Inhibitors. ACS Med Chem Lett 2016; 7:762-7. [PMID: 27563400 PMCID: PMC4983741 DOI: 10.1021/acsmedchemlett.6b00119] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 06/02/2016] [Indexed: 01/17/2023] Open
Abstract
Inhibition of the lipid kinase PI3Kδ is a promising principle to treat B and T cell driven inflammatory diseases. Using a scaffold deconstruction-reconstruction strategy, we identified 4-aryl quinazolines that were optimized into potent PI3Kδ isoform selective analogues with good pharmacokinetic properties. With compound 11, we illustrate that biochemical PI3Kδ inhibition translates into modulation of isoform-dependent immune cell function (human, rat, and mouse). After oral administration of compound 11 to rats, proximal PD markers are inhibited, and dose-dependent efficacy in a mechanistic plaque forming cell assay could be demonstrated.
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Affiliation(s)
- Klemens Hoegenauer
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
| | - Nicolas Soldermann
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
| | - Frédéric Stauffer
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
| | - Pascal Furet
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
| | - Nadege Graveleau
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
| | - Alexander
B. Smith
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
| | - Christina Hebach
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
| | - Gregory J. Hollingworth
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
| | - Ian Lewis
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
| | - Sascha Gutmann
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
| | - Gabriele Rummel
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
| | - Mark Knapp
- Global
Discovery Chemistry, Novartis Institutes
for BioMedical Research, 5300 Chiron Way, Emeryville, California 94608, United States
| | - Romain
M. Wolf
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
| | - Joachim Blanz
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
| | - Roland Feifel
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
| | - Christoph Burkhart
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
| | - Frédéric Zécri
- Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation
and Inflammation, Novartis Institutes for
BioMedical Research, Novartis Campus, CH-4002 Basel, Switzerland
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20
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Robinson D, Bertrand T, Carry JC, Halley F, Karlsson A, Mathieu M, Minoux H, Perrin MA, Robert B, Schio L, Sherman W. Differential Water Thermodynamics Determine PI3K-Beta/Delta Selectivity for Solvent-Exposed Ligand Modifications. J Chem Inf Model 2016; 56:886-94. [DOI: 10.1021/acs.jcim.5b00641] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daniel Robinson
- Schrodinger, 120 W 45th St, New York, New York 10036, United States
| | | | | | | | | | | | | | | | | | | | - Woody Sherman
- Schrodinger, 120 W 45th St, New York, New York 10036, United States
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21
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Honda A, Harrington E, Cornella-Taracido I, Furet P, Knapp MS, Glick M, Triantafellow E, Dowdle WE, Wiedershain D, Maniara W, Moore C, Finan PM, Hamann LG, Firestone B, Murphy LO, Keaney EP. Potent, Selective, and Orally Bioavailable Inhibitors of VPS34 Provide Chemical Tools to Modulate Autophagy in Vivo. ACS Med Chem Lett 2016; 7:72-6. [PMID: 26819669 DOI: 10.1021/acsmedchemlett.5b00335] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 11/13/2015] [Indexed: 01/23/2023] Open
Abstract
Autophagy is a dynamic process that regulates lysosomal-dependent degradation of cellular components. Until recently the study of autophagy has been hampered by the lack of reliable pharmacological tools, but selective inhibitors are now available to modulate the PI 3-kinase VPS34, which is required for autophagy. Here we describe the discovery of potent and selective VPS34 inhibitors, their pharmacokinetic (PK) properties, and ability to inhibit autophagy in cellular and mouse models.
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Affiliation(s)
- Ayako Honda
- Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Edmund Harrington
- Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Ivan Cornella-Taracido
- Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Pascal Furet
- Novartis Institutes for BioMedical Research, Novartis Campus, CH-4056 Basel, Switzerland
| | - Mark S. Knapp
- Novartis Institutes for BioMedical Research, 4560 Horton Street, Emeryville, California 94608, United States
| | - Meir Glick
- Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Ellen Triantafellow
- Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - William E. Dowdle
- Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Dmitri Wiedershain
- Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Wieslawa Maniara
- Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Christine Moore
- Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Peter M. Finan
- Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Lawrence G. Hamann
- Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Brant Firestone
- Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Leon O. Murphy
- Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Erin P. Keaney
- Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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22
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Liu MN, Liu AY, Pei FH, Ma X, Fan YJ, DU YJ, Liu BR. Functional mechanism of the enhancement of 5-fluorouracil sensitivity by TUSC4 in colon cancer cells. Oncol Lett 2015; 10:3682-3688. [PMID: 26788191 DOI: 10.3892/ol.2015.3801] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Accepted: 07/07/2015] [Indexed: 02/01/2023] Open
Abstract
5-Fluorouracil (5-FU) is the chemotherapeutic drug of choice for the treatment of metastatic colorectal cancer (CRC). Tumor suppressor candidate 4 (TUSC4), also referred to as nitrogen permease regulator-like 2 (NPRL2), is located at chromosome 3p21.3 and expressed in numerous normal tissues, including the heart, liver, skeletal muscle, kidney, and pancreas. The aim of the present study was to investigate the functional mechanism by which TUSC4 affects sensitivity to 5-FU and to determine its clinical significance in CRC. The results of the present study demonstrated that TUSC4 overexpression increases the sensitivity of HCT116 cells to 5-FU. The IC50 of 5-FU was reduced in cells transduced with TUSC4 compared with negative control (NC) cells, and the effect of TUSC4 on 5-FU sensitivity was time dependent. Following TUSC4 transduction in HCT116 cells, a proportion of the cells were arrested in the G1 phase of the cell cycle, and a reduction in the S phase population was observed. Flow cytometry analysis revealed that TUSC4 transduction and 5-FU treatment increased apoptosis compared with NC cells. The mechanism through which TUSC4 overexpression enhances 5-FU sensitivity involves the downregulation of the function of the PI3K/Akt/mTOR network. Furthermore, 5-FU upregulated caspase-3 and caspase-9, promoting apoptosis in TUSC4-overexpressing cells compared with cells that were transduced with TUSC4 or treated with 5-FU and NC cells. The findings of the present study indicate that TUSC4 has potential as a biomarker for the prediction of the response to 5-FU and prognosis in patients with colorectal cancer and other types of human cancer. TUSC4 may also act as a molecular therapeutic agent for enhancing the patient's response to 5-FU treatment.
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Affiliation(s)
- Ming-Na Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150080, P.R. China
| | - Ai-Yun Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150080, P.R. China
| | - Feng-Hua Pei
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150080, P.R. China
| | - Xiao Ma
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150080, P.R. China
| | - Yu-Jing Fan
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150080, P.R. China
| | - Ya-Ju DU
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150080, P.R. China
| | - Bing-Rong Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150080, P.R. China
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23
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Liu MN, Liu AY, Du YJ, Pei FH, Wang XH, Chen J, Liu D, Liu BR. Nitrogen permease regulator-like 2 enhances sensitivity to oxaliplatin in colon cancer cells. Mol Med Rep 2015; 12:1189-96. [PMID: 25777765 DOI: 10.3892/mmr.2015.3495] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 02/17/2015] [Indexed: 11/06/2022] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer worldwide. Chemotherapeutic compounds used for the treatment of CRC include oxaliplatin (L-OHP). While L-OHP improves CRC survival, certain patients are resistant. The nitrogen permease regulator like-2 (NPRL2) gene is a candidate tumor suppressor gene that resides in a 120-kb homozygous deletion region on chromosome 3p21.3. In the present study, it was demonstrated that NPRL2 overexpression increases the sensitivity of HCT116 cells to L-OHP. The IC50 of L-OHP was decreased in cells transduced with NPRL2 compared with negative control (NC) cells and the effect of NPRL2 on L-OHP sensitivity was time dependent. Following NPRL2 transduction in HCT116 cells, the cell cycle was arrested in the G1 phase and a partial decrease in the S phase population was observed. Flow cytometric analysis revealed that NPRL2 transduction and L-OHP treatment increased apoptosis compared with NC cells. The mechanism through which NPRL2 overexpression enhances L-OHP sensitivity involves downregulation of the functions of the phosphatidylinositol 3-kinase/Akt/mammalian target of rapamycin network. Furthermore, L-OHP upregulated caspase-3 and caspase-9 to promote apoptosis in NPRL2-overexpressing cells compared with cells that were transduced with NPRL2 or treated with L-OHP and NC cells (P<0.01). NPRL2 overexpression led to the downregulation of CD24, which could significantly reduce tumor invasiveness and decrease the metastatic capacity of HCT116 cells. These mechanisms are likely active in other types of cancer and may be exploited for the development of novel cancer therapies.
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Affiliation(s)
- Ming-Na Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150080, P.R. China
| | - Ai-Yun Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150080, P.R. China
| | - Ya-Ju Du
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150080, P.R. China
| | - Feng-Hua Pei
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150080, P.R. China
| | - Xin-Hong Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150080, P.R. China
| | - Jing Chen
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150080, P.R. China
| | - Dan Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150080, P.R. China
| | - Bing-Rong Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150080, P.R. China
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24
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Wang L, Wu J, Lu J, Ma R, Sun D, Tang J. Regulation of the cell cycle and PI3K/Akt/mTOR signaling pathway by tanshinone I in human breast cancer cell lines. Mol Med Rep 2014; 11:931-9. [PMID: 25355053 PMCID: PMC4262478 DOI: 10.3892/mmr.2014.2819] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 09/18/2014] [Indexed: 01/25/2023] Open
Abstract
Breast cancer is the second leading cause of cancer‑related mortality in females worldwide. Therefore, identifying alternative strategies to combat the disease mortality is important. The aim of the present study was to investigate the effect of tanshinone I (Tan I) on the tumorigenicity of estrogen‑responsive MCF‑7 and estrogen‑independent MDA‑MB‑453 human breast cancer cells. The cytotoxicity of Tan I was evaluated using a Cell Counting Kit‑8 assay, the apoptosis and cell cycle distribution were detected using flow cytometry and the cell morphology was observed using a fluorescence microscope. In addition, the cell cycle regulatory proteins and apoptosis‑associated proteins involved in the phosphatidylinositide 3‑kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) signaling pathway were detected using western blot analysis using specific protein antibodies. The MCF‑7 and MDA‑MB‑453 cells were equally sensitive to Tan I regardless of their responsiveness to estrogen. Tan I exerted similar antiproliferative activities and induction of apoptosis, resulting in S phase arrest accompanied by decreases in cyclin B and increases in cyclin E and cyclin A proteins, which may have been associated with the upregulation of cyclin‑dependent kinase inhibitors p21Cip1 and p27Kip1. In addition, Tan I was found to downregulate anti‑apoptotic and upregulate associated apoptotic components of the PI3K/Akt/mTOR signaling pathway. Notably, treatment with the PI3K inhibitor, LY294002, decreased the levels of phosphorylated (p)‑PI3K, p‑Akt and p‑mTOR. These results clearly indicated that the mechanism of action of Tan I involved, at least partially, an effect on the PI3K/Akt/mTOR signaling pathway, providing new information for anticancer drug design and development.
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Affiliation(s)
- Li Wang
- First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210046, P.R. China
| | - Jianzhong Wu
- Department of General Surgery, The Affiliated Jiangsu Cancer Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Jianwei Lu
- Department of General Surgery, The Affiliated Jiangsu Cancer Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Rong Ma
- Department of General Surgery, The Affiliated Jiangsu Cancer Hospital, Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Dawei Sun
- First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210046, P.R. China
| | - Jinhai Tang
- First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210046, P.R. China
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25
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Schenone S, Radi M, Musumeci F, Brullo C, Botta M. Biologically Driven Synthesis of Pyrazolo[3,4-d]pyrimidines As Protein Kinase Inhibitors: An Old Scaffold As a New Tool for Medicinal Chemistry and Chemical Biology Studies. Chem Rev 2014; 114:7189-238. [DOI: 10.1021/cr400270z] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Silvia Schenone
- Dipartimento
di Farmacia, Università degli Studi di Genova Viale Benedetto
XV, 3, 16132 Genova, Italy
| | - Marco Radi
- Dipartimento
di Farmacia, Università degli Studi di Parma Viale delle
Scienze, 27/A, 43124 Parma, Italy
| | - Francesca Musumeci
- Dipartimento
di Farmacia, Università degli Studi di Genova Viale Benedetto
XV, 3, 16132 Genova, Italy
| | - Chiara Brullo
- Dipartimento
di Farmacia, Università degli Studi di Genova Viale Benedetto
XV, 3, 16132 Genova, Italy
| | - Maurizio Botta
- Dipartimento
di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena Via Aldo Moro, 2, 53100 Siena, Italy
- Sbarro
Institute for Cancer Research and Molecular Medicine, Center for Biotechnology,
College of Science and Technology, Temple University, BioLife Science
Building, Suite 333, 1900 N 12th Street, Philadelphia, Pennsylvania 19122, United States
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26
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Eachkoti R, Reddy MVR, Lieu YK, Cosenza SC, Reddy EP. Identification and characterisation of a novel heat shock protein 90 inhibitor ONO4140. Eur J Cancer 2014; 50:1982-92. [PMID: 24835034 DOI: 10.1016/j.ejca.2014.04.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 03/28/2014] [Accepted: 04/16/2014] [Indexed: 12/26/2022]
Abstract
Heat shock protein (Hsp) 90 is a key component of the super-chaperone complex that maintains functionally active conformation of various client proteins. Many of these client proteins regulate important nodal points in multiple signalling pathways that promote cancer cell growth and survival. Inhibitors of Hsp90, therefore, have the potential of functioning as anti-cancer agents with pleiotropic effects. Identification of novel Hsp90 inhibitors with more favourable pharmacological properties is a priority in cancer therapy. To achieve this goal, we screened a compound library using a biochemical assay based on refolding of denatured firefly luciferase. The assay revealed high sensitivity, reliability and reproducibility with a Z-factor of 0.81 ± 0.17. Six Hsp90 inhibitory compounds identified by this screening with IC50 values between 1.0 and 6 μM were further characterised for anti-proliferative activity by Cell Titer-Blue Cell Viability Assay using multiple tumour cell lines. Of particular interest was ONO4140 with lowest GI50 values in three different cancer cell lines viz; DU-145, BT-474 and K562 cell lines. This study also revealed that short-term exposure of tumour cells with ONO4140 is sufficient to inhibit the catalytic activity of Hsp90, evaluated through disruption of Hsp90-p23 association by immunoprecipitation. This short term exposure appears to initiate events like degradation of Hsp90 client proteins such as ErbB2/Her-2 and Akt with concomitant inhibition of survival signalling leading to the apoptotic death of tumour cells as seen by western blotting and Caspase Glow-3,7 assay. The study also reveals that apoptosis following Hsp90 inhibition with ONO4140 occurs via Caspase9-Caspase3 intrinsic apoptotic pathway, a process that is likely triggered by inactivation of Akt. In conclusion, we have identified a novel class of synthetic compounds which show potent Hsp90 inhibitory action in preclinical studies. The discovery of this novel class of synthetic Hsp90 inhibitors with simple chemical backbone allows us to conduct further structural modifications to improve their potency and pharmacokinetic properties for use in cancer therapy.
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Affiliation(s)
- Rafiqa Eachkoti
- Fels Institute for Cancer Research and Molecular Biology, Temple University School of Medicine, Philadelphia, PA 19140, United States.
| | - M V Ramana Reddy
- Fels Institute for Cancer Research and Molecular Biology, Temple University School of Medicine, Philadelphia, PA 19140, United States
| | - Yen K Lieu
- Fels Institute for Cancer Research and Molecular Biology, Temple University School of Medicine, Philadelphia, PA 19140, United States
| | - Stephen C Cosenza
- Fels Institute for Cancer Research and Molecular Biology, Temple University School of Medicine, Philadelphia, PA 19140, United States
| | - E PremKumar Reddy
- Fels Institute for Cancer Research and Molecular Biology, Temple University School of Medicine, Philadelphia, PA 19140, United States
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Abstract
BACKGROUND Homogeneous time-resolved fluorescence (HTRF) is a fluorescence resonance energy transfer-based technology used to measure bimolecular interactions. It has been applied successfully to kinase assays and has become an important tool in kinase drug discovery. OBJECTIVE This article reviews the current status of HTRF technology in biochemical and cellular kinase assays. METHODS Recent literature and meeting reports on HTRF kinase assays are reviewed, and their principles, advantages and drawbacks, current status and the potential applications in kinase drug discovery are discussed. RESULTS/CONCLUSION HTRF kinase assays are homogeneous, robust, sensitive, easy to miniaturize and high-throughput. This assay format is versatile, as both peptide and protein substrates can be used, and high ATP concentrations are tolerated, which enables the assay to be performed under conditions mimicking the physiological environment. HTRF kinase assays have been applied to both high-throughput screening and compound mechanistic studies. Besides protein kinases, the technology has now been expanded into the lipid kinase family. Furthermore, the utility of HTRF technology in cellular assays is emerging. HTRF kinase assays are a great addition to the toolbox for kinase drug discovery.
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Affiliation(s)
- Yong Jia
- Group Leader Genomics Institute of the Novartis Research Foundation, Department of Kinase Biology, 10675 John J Hopkins Dr, San Diego, CA 92121, USA +858 812 1728 ; +858 812 1918 ;
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Ponnurangam S, Standing D, Rangarajan P, Subramaniam D. Tandutinib inhibits the Akt/mTOR signaling pathway to inhibit colon cancer growth. Mol Cancer Ther 2013; 12:598-609. [PMID: 23427297 DOI: 10.1158/1535-7163.mct-12-0907] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The c-Kit receptor can activate distinct signaling pathways including phosphoinositide 3-kinase (PI3K)/Akt and mTOR. Aberrant c-Kit activation protects cells from apoptosis and enhances invasion of colon carcinoma cells. Tandutinib is a novel quinazoline-based inhibitor of the type III receptor tyrosine kinases including c-Kit. We determined the effect of tandutinib on colon cancer growth and identified a mechanism of action. Tandutinib inhibited phosphorylation of c-Kit, Akt, mTOR, and p70S6 kinase. In addition, tandutinib significantly inhibited the proliferation and colony formation ability of colon cancer cell lines but did not affect normal colonic epithelial cells. There were increased levels of activated caspase-3 and Bax/Bcl2 ratio, coupled with a reduction in cyclin D1, suggesting apoptosis. There was also a downregulation of COX-2, VEGF, and interleukin-8 expression, suggesting effects on cancer-promoting genes. In addition, overexpressing constitutively active Akt partially suppressed tandutinib-mediated colon cancer cell growth. In vivo, intraperitoneal administration of tandutinib significantly suppressed growth of colon cancer tumor xenografts. There was a reduction in CD31-positive blood vessels, suggesting that there was an effect on angiogenesis. Tandutinib treatment also inhibited the expression of cancer-promoting genes COX-2 and VEGF and suppressed the activation of Akt/mTOR signaling proteins in the xenograft tissues. Together, these data suggest that tandutinib is a novel potent therapeutic agent that can target the Akt/mTOR/p70S6K signaling pathway to inhibit tumor growth and angiogenesis.
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Affiliation(s)
- Sivapriya Ponnurangam
- Department of Molecular and Integrative Physiology, The University of Kansas Medical Center, Kansas City, KS 66160, USA
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Development and evaluation of PIK75 nanosuspension, a phosphatidylinositol-3-kinase inhibitor. Eur J Pharm Sci 2012; 47:824-33. [DOI: 10.1016/j.ejps.2012.09.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Revised: 08/22/2012] [Accepted: 09/16/2012] [Indexed: 02/07/2023]
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30
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Markman B, Tabernero J, Krop I, Shapiro GI, Siu L, Chen LC, Mita M, Melendez Cuero M, Stutvoet S, Birle D, Anak Ö, Hackl W, Baselga J. Phase I safety, pharmacokinetic, and pharmacodynamic study of the oral phosphatidylinositol-3-kinase and mTOR inhibitor BGT226 in patients with advanced solid tumors. Ann Oncol 2012; 23:2399-2408. [PMID: 22357447 DOI: 10.1093/annonc/mds011] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND This phase I dose-escalation study investigated the maximum tolerated dose (MTD), safety, pharmacokinetics, pharmacodynamics (PDs), and preliminary antitumor activity of BGT226, a potent, oral dual phosphatidylinositol-3-kinase (PI3K)/mammalian target of rapamycin inhibitor. PATIENTS AND METHODS Fifty-seven patients with advanced solid tumors received BGT226 2.5-125 mg/day three times weekly (TIW). Dose escalation was guided by an adaptive Bayesian logistic regression model with overdose control. Assessments included response per RECIST, [18F]-fluorodeoxyglucose uptake, and phosphorylated-S6 in skin and paired tumor samples. RESULTS Three patients (125 mg cohort) had dose-limiting toxic effects (grade 3 nausea/vomiting, diarrhea). BGT226-related adverse events included nausea (68%), diarrhea (61%), vomiting (49%), and fatigue (19%). BGT226 demonstrated rapid absorption, variable systemic exposure, and a median half-life of 6-9 h. Seventeen patients (30%) had stable disease (SD) as best response. Nine patients had SD for ≥16 weeks. Thirty patients (53%) achieved stable metabolic disease as assessed by [18F]-fluorodeoxyglucose-positron emission tomography; however, no correlation between metabolic response and tumor shrinkage according to computed tomography was observed. PD changes suggested PI3K pathway inhibition but were inconsistent. CONCLUSIONS The MTD of BGT226 was 125 mg/day TIW, and the clinically recommended dose was 100 mg/day TIW. Limited preliminary antitumor activity and inconsistent target inhibition were observed, potentially due to low systemic exposure.
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Affiliation(s)
- B Markman
- Medical Oncology Department, Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - J Tabernero
- Medical Oncology Department, Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - I Krop
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, USA
| | - G I Shapiro
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, USA
| | - L Siu
- Department of Medical Oncology and Hematology, Princess Margaret Hospital, Toronto, Canada
| | - L C Chen
- Nevada Cancer Institute, Las Vegas
| | - M Mita
- Cancer Therapy and Research Center, The University of Texas Health Science Center at San Antonio, San Antonio, USA
| | - M Melendez Cuero
- Oncology Translational Medicine, Novartis Pharma AG, Basel, Switzerland
| | - S Stutvoet
- Oncology Translational Medicine, Novartis Pharma AG, Basel, Switzerland
| | - D Birle
- Novartis Institutes for Biomedical Research, Cambridge, USA
| | - Ö Anak
- Oncology Translational Medicine, Novartis Pharma AG, Basel, Switzerland
| | - W Hackl
- Oncology Translational Medicine, Novartis Pharma AG, Basel, Switzerland
| | - J Baselga
- Medical Oncology Department, Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain.
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Wu Q, Liu Q. Do hepatitis B virus and hepatitis C virus co-infections increase hepatocellular carcinoma occurrence through synergistically modulating lipogenic gene expression? Hepatol Res 2012; 42:733-40. [PMID: 22487144 DOI: 10.1111/j.1872-034x.2012.00994.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Hepatitis B virus (HBV) and hepatitis C virus (HCV) infections cause a wide range of liver diseases including hepatocellular carcinoma (HCC). Because of the similar modes of transmission, HBV HCV co-infections are found in approximately 7-20 million people globally. Compared with HBV or HCV mono-infections, co-infections are associated with more severe liver diseases and higher risk of HCC. Abnormal lipid biosynthesis and metabolism has been increasingly recognized as a cause for cancer. While HBV infection does not seem to significantly increase the risk of developing hepatic steatosis, steatosis is a prominent feature of chronic hepatitis C (CHC). In addition, steatosis in HBV or HCV mono-infections is a significant and independent risk factor for HCC. However, whether and how HBV HCV co-infections synergistically increase the risk of HCC development through modulating lipid metabolism is not well understood. Possible mechanisms by which steatosis causes HCC include: activation of sterol regulatory element-binding protein-mediated lipogenesis through the PI3K-Akt pathway, abnormal activation of peroxisome proliferator-activated receptors and endoplasmic reticulum stress. Here, we review the potential mechanisms by which HBV HCV co-infections may increase HCC risk through modulation of lipogenic gene expression. We begin with reviewing the impact of HBV and HCV on host lipogenic gene expression and carcinogenesis. We then discuss the potential mechanisms by which HBV and HCV can increase carcinogenesis through synergistically activating lipid biosynthesis and metabolism. We end by sharing our thoughts on future research directions in this emerging paradigm with an ultimate goal of developing effective therapeutics.
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Affiliation(s)
- Qi Wu
- Vaccine and Infectious Disease Organization, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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Phosphatidylinositol 3-kinase Inhibitor (PIK75) Containing Surface Functionalized Nanoemulsion for Enhanced Drug Delivery, Cytotoxicity and Pro-apoptotic Activity in Ovarian Cancer Cells. Pharm Res 2012; 29:2874-86. [DOI: 10.1007/s11095-012-0793-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 05/21/2012] [Indexed: 02/06/2023]
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Subramaniam D, Periyasamy G, Ponnurangam S, Chakrabarti D, Sugumar A, Padigaru M, Weir SJ, Balakrishnan A, Sharma S, Anant S. CDK-4 inhibitor P276 sensitizes pancreatic cancer cells to gemcitabine-induced apoptosis. Mol Cancer Ther 2012; 11:1598-608. [PMID: 22532602 DOI: 10.1158/1535-7163.mct-12-0102] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Despite advances in molecular pathogenesis, pancreatic cancer remains a major unsolved health problem. It is a rapidly invasive, metastatic tumor that is resistant to standard therapies. The phosphatidylinositol-3-kinase/Akt and mTOR signaling pathways are frequently dysregulated in pancreatic cancer. Gemcitabine is the mainstay treatment for metastatic pancreatic cancer. P276 is a novel CDK inhibitor that induces G(2)/M arrest and inhibits tumor growth in vivo models. Here, we determined that P276 sensitizes pancreatic cancer cells to gemcitabine-induced apoptosis, a mechanism-mediated through inhibition of Akt-mTOR signaling. In vitro, the combination of P276 and gemcitabine resulted in a dose- and time-dependent inhibition of proliferation and colony formation of pancreatic cancer cells but not with normal pancreatic ductal cells. This combination also induced apoptosis, as seen by activated caspase-3 and increased Bax/Bcl2 ratio. Gene profiling studies showed that this combination downregulated Akt-mTOR signaling pathway, which was confirmed by Western blot analyses. There was also a downregulation of VEGF and interleukin-8 expression suggesting effects on angiogenesis pathway. In vivo, intraperitoneal administration of the P276-Gem combination significantly suppressed the growth of pancreatic cancer tumor xenografts. There was a reduction in CD31-positive blood vessels and reduced VEGF expression, again suggesting an effect on angiogenesis. Taken together, these data suggest that P276-Gem combination is a novel potent therapeutic agent that can target the Akt-mTOR signaling pathway to inhibit both tumor growth and angiogenesis.
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Affiliation(s)
- Dharmalingam Subramaniam
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas 66160, USA
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Fabbro D, Cowan-Jacob SW, Möbitz H, Martiny-Baron G. Targeting cancer with small-molecular-weight kinase inhibitors. Methods Mol Biol 2012; 795:1-34. [PMID: 21960212 DOI: 10.1007/978-1-61779-337-0_1] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Protein and lipid kinases fulfill essential roles in many signaling pathways that regulate normal cell functions. Deregulation of these kinase activities lead to a variety of pathologies ranging from cancer to inflammatory diseases, diabetes, infectious diseases, cardiovascular disorders, cell growth and survival. 518 protein kinases and about 20 lipid-modifying kinases are encoded by the human genome, and a much larger proportion of additional kinases are present in parasite, bacterial, fungal, and viral genomes that are susceptible to exploitation as drug targets. Since many human diseases result from overactivation of protein and lipid kinases due to mutations and/or overexpression, this enzyme class represents an important target for the pharmaceutical industry. Approximately one third of all protein targets under investigation in the pharmaceutical industry are protein or lipid kinases.The kinase inhibitors that have been launched, thus far, are mainly in oncology indications and are directed against a handful of protein and lipid kinases. With one exception, all of these registered kinase inhibitors are directed toward the ATP-site and display different selectivities, potencies, and pharmacokinetic properties. At present, about 150 kinase-targeted drugs are in clinical development and many more in various stages of preclinical development. Kinase inhibitor drugs that are in clinical trials target all stages of signal transduction from the receptor protein tyrosine kinases that initiate intracellular signaling, through second-messenger-dependent lipid and protein kinases, and protein kinases that regulate the cell cycle.This review provides an insight into protein and lipid kinase drug discovery with respect to achievements, binding modes of inhibitors, and novel avenues for the generation of second-generation kinase inhibitors to treat cancers.
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Affiliation(s)
- Doriano Fabbro
- Novartis Institutes for Biomedical Research, Expertise Platform Kinases, Basel, Switzerland.
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35
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Miller TW, Balko JM, Arteaga CL. Phosphatidylinositol 3-kinase and antiestrogen resistance in breast cancer. J Clin Oncol 2011; 29:4452-61. [PMID: 22010023 PMCID: PMC3221526 DOI: 10.1200/jco.2010.34.4879] [Citation(s) in RCA: 304] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2011] [Accepted: 08/04/2011] [Indexed: 12/17/2022] Open
Abstract
Although antiestrogen therapies targeting estrogen receptor (ER) α signaling prevent disease recurrence in the majority of patients with hormone-dependent breast cancer, a significant fraction of patients exhibit de novo or acquired resistance. Currently, the only accepted mechanism linked with endocrine resistance is amplification or overexpression of the ERBB2 (human epidermal growth factor receptor 2 [HER2]) proto-oncogene. Experimental and clinical evidence suggests that hyperactivation of the phosphatidylinositol 3-kinase (PI3K) pathway, the most frequently mutated pathway in breast cancer, promotes antiestrogen resistance. PI3K is a major signaling hub downstream of HER2 and other receptor tyrosine kinases. PI3K activates several molecules involved in cell-cycle progression and survival, and in ER-positive breast cancer cells, it promotes estrogen-dependent and -independent ER transcriptional activity. Preclinical tumor models of antiestrogen-resistant breast cancer often remain sensitive to estrogens and PI3K inhibition, suggesting that simultaneous targeting of the PI3K and ER pathways may be most effective. Herein, we review alterations in the PI3K pathway associated with resistance to endocrine therapy, the state of clinical development of PI3K inhibitors, and strategies for the clinical investigation of such drugs in hormone receptor-positive breast cancer.
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Affiliation(s)
- Todd W. Miller
- All authors: Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN
| | - Justin M. Balko
- All authors: Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN
| | - Carlos L. Arteaga
- All authors: Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN
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36
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Discovery of novel anticancer therapeutics targeting the PI3K/Akt/mTOR pathway. Future Med Chem 2011; 1:137-55. [PMID: 21426073 DOI: 10.4155/fmc.09.5] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Among promising targeted therapies for cancer treatment, phosphatidylinositol 3-kinase pathway inhibitors have in the last 3 years continued to retain the attention of both academic institutions and pharmaceutical companies. The large amount of published clinical and preclinical data has indeed confirmed the preponderant role of this so-called survival pathway for tumor maintenance. DISCUSSION Global efforts have, therefore, been deployed that have led to the genesis of a panoply of small molecule inhibitors. This review will focus on updating the reader on the current medicinal chemistry efforts targeting this pathway. CONCLUSIONS Recent discoveries important for patient stratification, quantification of target modulation in humans and combination therapies will be presented and discussed.
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37
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Clinical development of phosphatidylinositol-3 kinase pathway inhibitors. Curr Top Microbiol Immunol 2011; 347:189-208. [PMID: 20593313 DOI: 10.1007/82_2010_54] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
The PI3K pathway is the most commonly altered in human cancer. Several recent phase I studies with therapeutic inhibitors of this pathway have shown that pharmacological inhibition of PI3K in humans is feasible and overall well tolerated. Furthermore, there has already been clinical evidence of anti-tumor activity in patients with advanced cancer. The intensity and duration of PI3K inhibition required for an antitumor effect and the optimal pharmacodynamic biomarker(s) of pathway inactivation remain to be established. Preclinical and early clinical data support focusing on trials with PI3K inhibitors that are at a minimum enriched with patients with alterations in this signaling pathway. These inhibitors are likely to be more effective in combination with established and other novel molecular therapies.
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Vogt PK, Hart JR, Gymnopoulos M, Jiang H, Kang S, Bader AG, Zhao L, Denley A. Phosphatidylinositol 3-kinase: the oncoprotein. Curr Top Microbiol Immunol 2011; 347:79-104. [PMID: 20582532 DOI: 10.1007/82_2010_80] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The catalytic and regulatory subunits of class I phosphoinositide 3-kinase (PI3K) have oncogenic potential. The catalytic subunit p110α and the regulatory subunit p85 undergo cancer-specific gain-of-function mutations that lead to enhanced enzymatic activity, ability to signal constitutively, and oncogenicity. The β, γ, and δ isoforms of p110 are cell-transforming as overexpressed wild-type proteins. Class I PI3Ks have the unique ability to generate phosphoinositide 3,4,5 trisphosphate (PIP(3)). Class II and class III PI3Ks lack this ability. Genetic and cell biological evidence suggests that PIP(3) is essential for PI3K-mediated oncogenicity, explaining why class II and class III enzymes have not been linked to cancer. Mutational analysis reveals the existence of at least two distinct molecular mechanisms for the gain of function seen with cancer-specific mutations in p110α; one causing independence from upstream receptor tyrosine kinases, the other inducing independence from Ras. An essential component of the oncogenic signal that is initiated by PI3K is the TOR (target of rapamycin) kinase. TOR is an integrator of growth and of metabolic inputs. In complex with the raptor protein (TORC1), it controls cap-dependent translation, and this function is essential for PI3K-initiated oncogenesis.
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Affiliation(s)
- Peter K Vogt
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA.
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Vogt PK, Hart JR, Gymnopoulos M, Jiang H, Kang S, Bader AG, Zhao L, Denley A. Phosphatidylinositol 3-kinase: the oncoprotein. Curr Top Microbiol Immunol 2010. [PMID: 20582532 DOI: 10.1007/82-2010-80] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The catalytic and regulatory subunits of class I phosphoinositide 3-kinase (PI3K) have oncogenic potential. The catalytic subunit p110α and the regulatory subunit p85 undergo cancer-specific gain-of-function mutations that lead to enhanced enzymatic activity, ability to signal constitutively, and oncogenicity. The β, γ, and δ isoforms of p110 are cell-transforming as overexpressed wild-type proteins. Class I PI3Ks have the unique ability to generate phosphoinositide 3,4,5 trisphosphate (PIP(3)). Class II and class III PI3Ks lack this ability. Genetic and cell biological evidence suggests that PIP(3) is essential for PI3K-mediated oncogenicity, explaining why class II and class III enzymes have not been linked to cancer. Mutational analysis reveals the existence of at least two distinct molecular mechanisms for the gain of function seen with cancer-specific mutations in p110α; one causing independence from upstream receptor tyrosine kinases, the other inducing independence from Ras. An essential component of the oncogenic signal that is initiated by PI3K is the TOR (target of rapamycin) kinase. TOR is an integrator of growth and of metabolic inputs. In complex with the raptor protein (TORC1), it controls cap-dependent translation, and this function is essential for PI3K-initiated oncogenesis.
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Affiliation(s)
- Peter K Vogt
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA.
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40
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Hirai H, Sootome H, Nakatsuru Y, Miyama K, Taguchi S, Tsujioka K, Ueno Y, Hatch H, Majumder PK, Pan BS, Kotani H. MK-2206, an allosteric Akt inhibitor, enhances antitumor efficacy by standard chemotherapeutic agents or molecular targeted drugs in vitro and in vivo. Mol Cancer Ther 2010; 9:1956-67. [PMID: 20571069 DOI: 10.1158/1535-7163.mct-09-1012] [Citation(s) in RCA: 716] [Impact Index Per Article: 51.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The serine/threonine kinase Akt lies at a critical signaling node downstream of phosphatidylinositol-3-kinase and is important in promoting cell survival and inhibiting apoptosis. An Akt inhibitor may be particularly useful for cancers in which increased Akt signaling is associated with reduced sensitivity to cytotoxic agents or receptor tyrosine kinase inhibitors. We evaluated the effect of a novel allosteric Akt inhibitor, MK-2206, in combination with several anticancer agents. In vitro, MK-2206 synergistically inhibited cell proliferation of human cancer cell lines in combination with molecular targeted agents such as erlotinib (an epidermal growth factor receptor inhibitor) or lapatinib (a dual epidermal growth factor receptor/human epidermal growth factor receptor 2 inhibitor). Complementary inhibition of erlotinib-insensitive Akt phosphorylation by MK-2206 was one mechanism of synergism, and a synergistic effect was found even in erlotinib-insensitive cell lines. MK-2206 also showed synergistic responses in combination with cytotoxic agents such as topoisomerase inhibitors (doxorubicin, camptothecin), antimetabolites (gemcitabine, 5-fluorouracil), anti-microtubule agents (docetaxel), and DNA cross-linkers (carboplatin) in lung NCI-H460 or ovarian A2780 tumor cells. The synergy with docetaxel depended on the treatment sequence; a schedule of MK-2206 dosed before docetaxel was not effective. MK-2206 suppressed the Akt phosphorylation that is induced by carboplatin and gemcitabine. In vivo, MK-2206 in combination with these agents exerted significantly more potent tumor inhibitory activities than each agent in the monotherapy setting. These findings suggest that Akt inhibition may augment the efficacy of existing cancer therapeutics; thus, MK-2206 is a promising agent to treat cancer patients who receive these cytotoxic and/or molecular targeted agents.
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Affiliation(s)
- Hiroshi Hirai
- Department of Oncology, Banyu Tsukuba Research Institute, Merck Research Laboratories, Tsukuba, Ibaraki 300-2611, Japan.
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Dannemann N, Hart JR, Ueno L, Vogt PK. Phosphatidylinositol 4,5-bisphosphate-specific AKT1 is oncogenic. Int J Cancer 2010; 127:239-44. [PMID: 19876913 DOI: 10.1002/ijc.25012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The protein kinase AKT1 (v-akt murine thymoma viral oncogene homolog 1), also referred to as protein kinase B (PKB), is an essential mediator of the phosphatidylinositol 3-kinase signaling pathway. Elevated activity of AKT1 is common in human cancer. Localization at the plasma membrane, leading to enhanced phosphorylation and activation of AKT1, is an important factor determining the oncogenicity of this kinase. Although the phosphatidylinositol 3-kinase signaling pathway is frequently upregulated in cancer, cancer-specific mutations in AKT1 are not common. Recently, such a mutation has been identified in breast, colon and ovarian cancers. The mutation is located in the pleckstrin homology (PH) domain of AKT1 and results in a glutamic acid to lysine substitution at residue 17. The resultant change in the conformation of the PH domain facilitates membrane binding of the mutant protein. Here we show that exchange of the PH domain leading to preferential binding of phosphatidylinositol 4,5-bisphosphate (PIP(2)) over phosphatidylinositol 3,4,5-trisphosphate (PIP(3)) constitutively activates AKT1. AKT1 with this altered PIP affinity induces oncogenic transformation in cultures of chicken embryo fibroblasts and causes neoplastic growth and angiogenesis in the chorioallantoic membrane of the chicken embryo. Gain-of-function mutants of AKT1 may not be affected by PI3K inhibitors that are currently in development. Therefore, AKT1 remains a distinct and important cancer target.
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Affiliation(s)
- Nadine Dannemann
- The Scripps Research Institute, Molecular and Experimental Medicine, La Jolla, California 92037, USA
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Manara MC, Nicoletti G, Zambelli D, Ventura S, Guerzoni C, Landuzzi L, Lollini PL, Maira SM, García-Echeverría C, Mercuri M, Picci P, Scotlandi K. NVP-BEZ235 as a new therapeutic option for sarcomas. Clin Cancer Res 2010; 16:530-40. [PMID: 20068094 DOI: 10.1158/1078-0432.ccr-09-0816] [Citation(s) in RCA: 125] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE To evaluate the in vitro and in vivo effects of NVP-BEZ235, a dual pan-phosphoinositide 3-kinase-mammalian target of rapamycin inhibitor in the three most common musculoskeletal tumors (osteosarcoma, Ewing's sarcoma, and rhabdomyosarcoma). EXPERIMENTAL DESIGN Antiproliferative activity as well as the effects on migration and metastasis were evaluated in a panel of osteosarcoma, Ewing's sarcoma, as well as rhabdomyosarcoma cell lines. Moreover, simultaneous and sequential treatments were done in association with two of the most important conventional drugs in the treatment of sarcoma, doxorubicin and vincristine. RESULTS NVPBEZ235 effectively blocked the pathway in in vitro and in vivo settings. Under the experimental conditions tested, the compound induced disease stasis, by arresting cells in G(1) phase of cell cycle, without remarkable effects on apoptosis. As a consequence, to obtain the maximum exploitation of its therapeutic potential, NVP-BEZ235 has been evaluated in combination with conventional cytotoxic agents, thus showing promising efficacy with either doxorubicin and vincristine. Inhibition of the phosphoinositide 3-kinase/mammalian target of rapamycin pathway increased activation of extracellular signal-regulated kinase 1/2, likely due to the presence of autocrine circuits shifting growth factor signaling toward the mitogen-activated protein kinase pathway. This supports the combined use of NVP-BEZ235 with other small signaling inhibitors. Here, we showed synergistic effects when the compound was associated with a anti-insulin-like growth factor-I receptor tyrosine kinase inhibitor. NVP-BEZ235 also inhibited cell migration and metastasis. Combination with vincristine further potentiated the antimetastatic effects. CONCLUSIONS NVP-BEZ235 displays the features to be considered for sarcoma therapy to potentiate the activity of other anticancer agents. The drug is currently undergoing phase I/II clinical trials in advanced cancer patients.
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Affiliation(s)
- Maria C Manara
- Laboratorio di Ricerca Oncologica, Istituto Ortopedico Rizzoli, Bologna, Italy
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Maira SM, Finan P, Garcia-Echeverria C. From the bench to the bed side: PI3K pathway inhibitors in clinical development. Curr Top Microbiol Immunol 2010; 347:209-39. [PMID: 20582534 DOI: 10.1007/82_2010_60] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A number of intracellular kinase components of the PI3K/Akt/mTOR pathway have been targeted over the past few years, leading to a new generation of anticancer agents that effectively and specifically disrupt this pathway in tumor cells. Here, progress in the identification and clinical evaluation of compounds designed to modulate the enzymatic activity of PI3K, Akt, mTOR, and Hsp90 is reviewed.
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Affiliation(s)
- Saveur-Michel Maira
- Oncology Drug Discovery, Novartis Institutes for Biomedical Research, Vitry-sur-Seine Cedex, France
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Couplan E, Le Cann M, Le Foll C, Corporeau C, Blondel M, Delarue J. Polyunsaturated fatty acids inhibit PI3K activity in a yeast-based model system. Biotechnol J 2009; 4:1190-7. [PMID: 19557793 DOI: 10.1002/biot.200800229] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The phosphatidylinositol 3-kinase (PI3K) pathway controls the regulation of cell growth, proliferation, migration and apoptosis. In many tumors, the PI3K gene is mutated or overexpressed, and/or the PI3K pathway is hyperactive. PI3K is therefore a potential pharmacological target for the development of anti-tumor drugs. Some polyunsaturated fatty acids (PUFA), when given in the diet, may lead to a decrease in PI3K activity. We used a yeast-based model to reconstitute the PI3K/PTEN/Akt pathway to study the effects of long-chain polyunsaturated n-3 fatty acids on PI3K, and found that various PUFA were able to alleviate toxicity induced by overexpression of PI3K. The various PUFA had no significant effect on the steady-state level of PI3K catalytic subunit proteins (p110alpha) in yeast. However, depletion of phosphatidylinositol 4,5-bisphosphate due to overexpression of the p110alpha subunit was significantly reduced by treating the yeast cells with the various PUFA. The inhibition of mammalian PI3K, expressed in an exogenous cellular context in yeast, is likely to be a direct effect of these PUFA on PI3K rather than on other mammalian endogenous or environmental factors. These results are particularly promising given the abundance of active PUFA in marine foodstuffs and especially fish oils.
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The pyridinylfuranopyrimidine inhibitor, PI-103, chemosensitizes glioblastoma cells for apoptosis by inhibiting DNA repair. Oncogene 2009; 28:3586-96. [PMID: 19633683 DOI: 10.1038/onc.2009.215] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The failure of conventional therapies in glioblastoma (GBM) is largely due to an aberrant activity of survival cascades, such as PI3 kinase (PI3K)/Akt-mediated signaling. This study is the first to show that the class I PI3K inhibitor, PI-103, enhances chemotherapy-induced cell death of GBM cells. Concurrent treatment with PI-103 and DNA-damaging drugs, in particular doxorubicin, significantly increases apoptosis and reduces colony formation compared with chemotherapy treatment alone. The underlying molecular mechanism for this chemosensitization was shown by two independent approaches, that is, pharmacological and genetic inhibition of PI3K, DNA-PK and mTOR, to involve inhibition of DNA-PK-mediated DNA repair. Accordingly, blockage of PI3K or DNA-PK, but not of mTOR, significantly delays the resolution of doxorubicin-induced DNA damage and concomitantly increases apoptosis. Importantly, not only are several GBM cell lines chemosensitized by PI-103 but also GBM stem cells. Clinical relevance was further confirmed by the use of primary cultured GBM cells, which also exhibit increased cell death and reduced colony formation on combined treatment with PI-103 and doxorubicin. By identifying class I PI3K inhibitors as powerful agents in enhancing the lethality of DNA-damaging drugs, to which GBMs are usually considered unresponsive, our findings have important implications for the design of rational combination regimens in overcoming the frequent chemoresistance of GBM.
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S9, a novel anticancer agent, exerts its anti-proliferative activity by interfering with both PI3K-Akt-mTOR signaling and microtubule cytoskeleton. PLoS One 2009; 4:e4881. [PMID: 19293927 PMCID: PMC2654064 DOI: 10.1371/journal.pone.0004881] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2008] [Accepted: 01/22/2009] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Deregulation of the phosphatidylinositol 3-kinases (PI3K)/Akt/mammalian target of rapamycin (mTOR) pathway plays a central role in tumor formation and progression, providing validated targets for cancer therapy. S9, a hybrid of alpha-methylene-gamma-lactone and 2-phenyl indole compound, possessed potent activity against this pathway. METHODOLOGY/PRINCIPAL FINDINGS Effects of S9 on PI3K-Akt-mTOR pathway were determined by Western blot, immunofluorescence staining and in vitro kinas assay. The interactions between tubulin and S9 were investigated by polymerization assay, CD, and SPR assay. The potential binding modes between S9 and PI3K, mTOR or tubulin were analyzed by molecular modeling. Anti-tumor activity of S9 was evaluated in tumor cells and in nude mice bearing human cancer xenografts. S9 abrogated EGF-activated PI3K-Akt-mTOR signaling cascade and Akt translocation to cellular membrane in human tumor cells. S9 possessed inhibitory activity against both PI3K and mTOR with little effect on other tested 30 kinases. S9 also completely impeded hyper-phosphorylation of Akt as a feedback of inhibition of mTOR by rapamycin. S9 unexpectedly arrested cells in M phase other than G1 phase, which was distinct from compounds targeting PI3K-Akt-mTOR pathway. Further study revealed that S9 inhibited tubulin polymerization via binding to colchicine-binding site of tubulin and resulted in microtubule disturbance. Molecular modeling indicated that S9 could potentially bind to the kinase domains of PI3K p110alpha subunit and mTOR, and shared similar hydrophobic interactions with colchicines in the complex with tubulin. Moreover, S9 induced rapid apoptosis in tumor cell, which might reflect a synergistic cooperation between blockade of both PI3-Akt-mTOR signaling and tubulin cytoskeleton. Finally, S9 displayed potent antiproliferative activity in a panel of tumor cells originated from different tissue types including drug-resistant cells and in nude mice bearing human tumor xenografts. CONCLUSIONS/SIGNIFICANCE Taken together, S9 targets both PI3K-Akt-mTOR signaling and microtubule cytoskeleton, which combinatorially contributes its antitumor activity and provides new clues for anticancer drug design and development.
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Brachmann S, Fritsch C, Maira SM, García-Echeverría C. PI3K and mTOR inhibitors: a new generation of targeted anticancer agents. Curr Opin Cell Biol 2009; 21:194-8. [PMID: 19201591 DOI: 10.1016/j.ceb.2008.12.011] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2008] [Accepted: 12/30/2008] [Indexed: 12/13/2022]
Abstract
Epidemiological and experimental studies support an important role of the phosphoinosite 3-kinase (PI3K)/mammalian target of rapamycin (mTOR) pathway in the biology of human cancers. Over the past few years a number of components of this signaling cascade have been the subject of intense drug discovery activities. This article summarizes progress made in the identification of kinase inhibitors of PI3K and mTOR, with an emphasis placed on drugs currently undergoing clinical trials. Potential combination strategies, safety concerns, and resistance mechanisms for this new generation of anticancer agents are also discussed.
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Affiliation(s)
- Saskia Brachmann
- Oncology Drug Discovery, Novartis Institutes of Biomedical Research, Basel, Switzerland
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CD18-dependent activation of the neutrophil NADPH oxidase during phagocytosis of Escherichia coli or Staphylococcus aureus is regulated by class III but not class I or II PI3Ks. Blood 2008; 112:5202-11. [DOI: 10.1182/blood-2008-04-149450] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Phagocytosis and activation of the NADPH oxidase are important mechanisms by which neutrophils and macrophages engulf and kill microbial pathogens. We investigated the role of PI3K signaling pathways in the regulation of the oxidase during phagocytosis of Staphylococcus aureus and Escherichia coli by mouse and human neutrophils, a mouse macrophage-like cell line and a human myeloid-like cell line. Phagocytosis of these bacteria was promoted by serum, independent of serum-derived antibodies, and effectively abolished in mouse neutrophils lacking the β2-integrin common chain, CD18. A combination of PI3K isoform-selective inhibitors, mouse knock-outs, and RNA-interference indicated CD18-dependent activation of the oxidase was independent of class I and II PI3Ks, but substantially dependent on the single class III isoform (Vps34). Class III PI3K was responsible for the synthesis of PtdIns(3)P on phagosomes containing either bacteria. The use of mouse neutrophils carrying an appropriate knock-in mutation indicated that PtdIns(3)P binding to the PX domain of their p40phox oxidase subunit is important for oxidase activation in response to both S aureus and E coli. This interaction does not, however, account for all the PI3K sensitivity of these responses, particularly the oxidase response to E coli, suggesting that additional mechanisms for PtdIns(3)P-regulation of the oxidase must exist.
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Garcia-Echeverria C, Sellers WR. Drug discovery approaches targeting the PI3K/Akt pathway in cancer. Oncogene 2008; 27:5511-26. [PMID: 18794885 DOI: 10.1038/onc.2008.246] [Citation(s) in RCA: 355] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The abnormal activation of the phosphatidylinositol 3-kinase (PI3K)/Akt pathway has been validated by epidemiological and experimental studies as an essential step toward the initiation and maintenance of human tumors. Notable in this regard are the prevalent somatic genetic alterations leading to the inactivation of the tumor suppressor gene PTEN and gain-of-function mutations targeting PIK3CA--the gene encoding the catalytic phosphosinositide-3 kinase subunit p110 alpha. A number of the intracellular components of this pathway have been targeted as anticancer drug discovery activities leading to the current panoply of clinical trials of inhibitors of PI3K, Akt and HSP90 in man. This review summarizes current preclinical knowledge of modulators of the PI3K/Akt pathway in which drug discovery and development activities have been advanced focusing on both the relevant clinical stage inhibitors and other disclosed tool compounds targeting PI3K, PDK1, Akt and HSP90.
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Affiliation(s)
- C Garcia-Echeverria
- Oncology Drug Discovery, Novartis Institutes for Biomedical Research, Basel, Switzerland.
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Schnell CR, Stauffer F, Allegrini PR, O'Reilly T, McSheehy PMJ, Dartois C, Stumm M, Cozens R, Littlewood-Evans A, García-Echeverría C, Maira SM. Effects of the dual phosphatidylinositol 3-kinase/mammalian target of rapamycin inhibitor NVP-BEZ235 on the tumor vasculature: implications for clinical imaging. Cancer Res 2008; 68:6598-607. [PMID: 18701483 DOI: 10.1158/0008-5472.can-08-1044] [Citation(s) in RCA: 149] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Dysregulated angiogenesis and high tumor vasculature permeability, two vascular endothelial growth factor (VEGF)-mediated processes and hallmarks of human tumors, are in part phosphatidylinositol 3-kinase (PI3K) dependent. NVP-BEZ235, a dual PI3K/mammalian target of rapamycin (mTOR) inhibitor, was found to potently inhibit VEGF-induced cell proliferation and survival in vitro and VEGF-induced angiogenesis in vivo as shown with s.c. VEGF-impregnated agar chambers. Moreover, the compound strongly inhibited microvessel permeability both in normal tissue and in BN472 mammary carcinoma grown orthotopically in syngeneic rats. Similarly, tumor interstitial fluid pressure, a phenomenon that is also dependent of tumor permeability, was significantly reduced by NVP-BEZ235 in a dose-dependent manner on p.o. administration. Because RAD001, a specific mTOR allosteric inhibitor, was ineffective in the preceding experiments, we concluded that the effects observed for NVP-BEZ235 are in part driven by PI3K target modulation. Hence, tumor vasculature reduction was correlated with full blockade of endothelial nitric oxide (NO) synthase, a PI3K/Akt-dependent but mTORC1-independent effector involved in tumor permeability through NO production. In the BN472 tumor model, early reduction of permeability, as detected by K(trans) quantification using the dynamic contrast-enhanced magnetic resonance imaging contrasting agent P792 (Vistarem), was found to be a predictive marker for late-stage antitumor activity by NVP-BEZ235.
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Affiliation(s)
- Christian R Schnell
- Oncology Disease Area, Novartis Institutes for Biomedical Research, Basel, Switzerland
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