1
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Abbas AA, Dawood KM. Anticancer therapeutic potential of benzofuran scaffolds. RSC Adv 2023; 13:11096-11120. [PMID: 37056966 PMCID: PMC10086673 DOI: 10.1039/d3ra01383a] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 03/31/2023] [Indexed: 04/15/2023] Open
Abstract
Benzofuran moiety is the main component of many biologically active natural and synthetic heterocycles. These heterocycles have unique therapeutic potentials and are involved in various clinical drugs. The reported results confirmed the extraordinary inhibitory potency of such benzofurans against a panel of human cancer cell lines compared with a wide array of reference anticancer drugs. Several publications about the anticancer potencies of benzofuran-based heterocycles were encountered. The recent developments of anticancer activities of both natural and synthetic benzofuran scaffolds during 2019-2022 are thoroughly covered. Many of the described benzofurans are promising candidates for development as anticancer agents based on their outstanding inhibitory potency against a panel of human cancer cells compared with reference anticancer drugs. These findings encourage medicinal chemists to explore new areas to improve human health and reduce suffering.
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Affiliation(s)
- Ashraf A Abbas
- Department of Chemistry, Faculty of Science, Cairo University Giza 12613 Egypt +20-2-35727556 +20-2-35676602
| | - Kamal M Dawood
- Department of Chemistry, Faculty of Science, Cairo University Giza 12613 Egypt +20-2-35727556 +20-2-35676602
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2
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Jang JY, Kim JH, Kim MW, Kim SH, Yong SY. Study of the Efficacy of Artificial Intelligence Algorithm-Based Analysis of the Functional and Anatomical Improvement in Polynucleotide Treatment in Knee Osteoarthritis Patients: A Prospective Case Series. J Clin Med 2022; 11:jcm11102845. [PMID: 35628972 PMCID: PMC9148053 DOI: 10.3390/jcm11102845] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/15/2022] [Accepted: 05/16/2022] [Indexed: 12/19/2022] Open
Abstract
Knee osteoarthritis (OA) is one of the most common degenerative diseases in old age. Recent studies have suggested new treatment approaches dealing with subchondral remodeling, which is a typical feature of OA progression. However, diagnostic tools or therapeutic approaches related to such a process are still being researched. The automated artificial intelligence (AI) algorithm-based texture analysis is a new method used for OA-progression detection. We designed a prospective case series study to examine the efficacy of the AI algorithm-based texture analysis in detecting the restoration of the subchondral remodeling process, which is expected to follow therapeutic intervention. In this study, we used polynucleotide (PN) filler injections as the therapeutic modality and the treatment outcome was verified by symptom improvement, as well as by the induction of subchondral microstructural changes. We used AI algorithm-based texture analysis to observe these changes in the subchondral bone with the bone structure value (BSV). A total of 51 participants diagnosed with knee OA were enrolled in this study. Intra-articular PN filler (HP cell Vitaran J) injections were administered once a week and five times in total. Knee X-rays and texture analyses with BSVs were performed during the screening visit and the last visit three months after screening. The Visual Analogue Scale (VAS) and Korean-Western Ontario MacMaster (K-WOMAC) measurements were used at the screening visit, the fifth intra-articular injection visit, and the last visit. The VAS and K-WOMAC scores decreased after PN treatment and lasted for three months after the final injection. The BSV changed in the middle and deep layers of tibial bone after PN injection. This result could imply that there were microstructural changes in the subchondral bone after PN treatment, and that this change could be detected using the AI algorithm-based texture analysis. In conclusion, the AI- algorithm-based texture analysis could be a promising tool for detecting and assessing the therapeutic outcome in knee OA.
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Affiliation(s)
- Ji Yoon Jang
- Department of Rehabilitation Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Korea; (J.Y.J.); (J.H.K.); (M.W.K.)
| | - Ji Hyun Kim
- Department of Rehabilitation Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Korea; (J.Y.J.); (J.H.K.); (M.W.K.)
| | - Min Woo Kim
- Department of Rehabilitation Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Korea; (J.Y.J.); (J.H.K.); (M.W.K.)
| | - Sung Hoon Kim
- Department of Rehabilitation Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Korea; (J.Y.J.); (J.H.K.); (M.W.K.)
- Correspondence: (S.H.K.); (S.Y.Y.)
| | - Sang Yeol Yong
- Department of Rehabilitation Medicine, Yonsei University Wonju College of Medicine, Wonju 26426, Korea; (J.Y.J.); (J.H.K.); (M.W.K.)
- Yonsei Institute of Sports Science and Exercise Medicine, Wonju 26426, Korea
- Correspondence: (S.H.K.); (S.Y.Y.)
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3
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Wu Q, Liu TY, Hu BC, Li X, Wu YT, Sun XT, Jiang XW, Wang S, Qin XC, Ding HW, Zhao QC. CK-3, A Novel Methsulfonyl Pyridine Derivative, Suppresses Hepatocellular Carcinoma Proliferation and Invasion by Blocking the PI3K/AKT/mTOR and MAPK/ERK Pathways. Front Oncol 2021; 11:717626. [PMID: 34395292 PMCID: PMC8355706 DOI: 10.3389/fonc.2021.717626] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/12/2021] [Indexed: 01/08/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is an aggressive tumor with a poor prognosis that highly expresses phosphatidylinositol 3-kinase (PI3K) and mitogen-activated protein kinase (ERK). The PI3K/AKT/mTOR and MAPK/ERK signaling pathways play a crucial role in HCC tumor formation, cell cycle, apoptosis and survival. However, no effective targeted therapies against these pathways is available, mainly due to the extensive and complex negative feedback loops between them. Here we used CK-3, a dual blocker of the PI3K/AKT/mTOR and MAPK/ERK pathways, against HCC cell lines to verify its anti-tumor activity in vitro. CK-3 exhibited cytotoxic activity against HCC, as demonstrated with MTT and colony formation assays. The anti-metastatic potential of CK-3 was demonstrated with wound healing and cell invasion assays. The ability of CK-3 to block both the PI3K/AKT/mTOR and MAPK/ERK pathways was also confirmed. CK-3 induced the apoptosis of Hep3B cells, while Bel7402 cells died via mitotic catastrophe (MC). Oral administration of CK-3 also inhibited the subcutaneous growth of BEL7402 cells in nude mice. Simultaneous PI3K/AKT/mTOR and MAPK/ERK pathway inhibition with CK-3 may be superior to single pathway monotherapies by inhibiting their feedback-regulation, and represents a potential treatment for HCC.
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Affiliation(s)
- Qiong Wu
- Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, China.,Department of Life Science and Biochemistry, Shenyang Pharmaceutical University, Shenyang, China
| | - Tian-Yi Liu
- Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, China.,Department of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, China
| | - Bai-Chun Hu
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiang Li
- Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, China.,Department of Life Science and Biochemistry, Shenyang Pharmaceutical University, Shenyang, China
| | - Yu-Ting Wu
- Department of Life Science and Biochemistry, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiao-Tong Sun
- Department of Life Science and Biochemistry, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiao-Wen Jiang
- Department of Life Science and Biochemistry, Shenyang Pharmaceutical University, Shenyang, China
| | - Shu Wang
- Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, China.,Department of Life Science and Biochemistry, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiao-Chun Qin
- Department of Life Science and Biochemistry, Shenyang Pharmaceutical University, Shenyang, China
| | - Huai-Wei Ding
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
| | - Qing-Chun Zhao
- Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, China.,Department of Life Science and Biochemistry, Shenyang Pharmaceutical University, Shenyang, China
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Natural Compound Mixture, Containing Emodin, Genipin, Chlorogenic Acid, Cimigenoside, and Ginsenoside Rb1, Ameliorates Psoriasis-Like Skin Lesions by Suppressing Inflammation and Proliferation in Keratinocytes. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:9416962. [PMID: 33149756 PMCID: PMC7603578 DOI: 10.1155/2020/9416962] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/16/2020] [Accepted: 10/07/2020] [Indexed: 01/13/2023]
Abstract
Herbal combinations of Rhei Radix et Rhizoma, Gardeniae Fructus, Cimicifugae Rhizoma, and Ginseng Radix have been used in traditional formulas to treat the symptoms of heat and dryness. This study investigated the therapeutic effects of a natural compound mixture (PSM) of these herbal combinations, containing emodin, genipin, chlorogenic acid, cimigenoside, and ginsenoside Rb1, for the treatment of psoriasis and its underlying molecular mechanisms. PSM was applied topically to the dorsal skin lesions of imiquimod- (IMQ-) induced C57BL/6 mice, and the expression of the proinflammatory mediators was investigated. The topical application of 1% PSM reduced psoriasis-like symptoms in IMQ-induced C57BL/6 mice significantly. PSM also attenuated the production of IFN-γ, IL-1β, and IL-6 in skin lesions. Histological analysis showed that PSM had antipsoriatic effects by reducing the lesional epidermal thickness. Either M5 (IL-1α, IL-17A, IL-22, oncostatin M, and TNF-α, 10 ng/ml each) or IL-22- (100 ng/ml) stimulated HaCaT cells were used to examine the efficacy and underlying mechanism of PSM. In M5-stimulated HaCaT cells, PSM inhibited the production of C-X-C motif chemokine ligand (CXCL) 10 and C-C motif chemokine ligand (CCL) 20 effectively. Moreover, compared to the use of a single compound, it had synergistic inhibitory effects in CXCL8 production. PSM suppressed the phosphorylation of ERK1/2, p38, and STAT3 signaling pathways in M5-stimulated HaCaT cells. Furthermore, PSM reduced the proliferation rate and K16 and K17 expressions in IL-22-stimulated HaCaT cells by inhibiting the Akt/mTOR signaling pathway. These results suggest that PSM may have a therapeutic potential in the treatment of psoriasis lesions.
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5
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Ye T, Han Y, Wang R, Yan P, Chen S, Hou Y, Zhao Y. Design, synthesis and biological evaluation of novel 2,4-bismorpholinothieno[3,2-d]pyrimidine and 2-morpholinothieno[3,2-d]pyrimidinone derivatives as potent antitumor agents. Bioorg Chem 2020; 99:103796. [PMID: 32283346 DOI: 10.1016/j.bioorg.2020.103796] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 02/05/2020] [Accepted: 03/24/2020] [Indexed: 01/18/2023]
Abstract
To develop novel therapeutic agents with anticancer activities, two series of novel 2,4-bismorpholinyl-thieno[3,2-d]pyrimidine and 2-morpholinothieno[3,2-d]pyrimidinone derivatives were designed, synthesized and evaluated for their biological activities. Among them, compound A12 showed the most potent antitumor activities against HCT116, PC-3, MCF-7, A549 and MDA-MB-231 cell lines with IC50 values of 3.24 μM, 14.37 μM, 7.39 μM, 7.10 μM, and 16.85 μM, respectively. Further explorations in bioactivity were conducted to clarify the anticancer mechanism of compound A12. The results showed that compound A12 obviously inhibited the proliferation of A549 cell lines and decreased mitochondrial membrane potential, which led to the apoptosis of cancer cells and suppressed the migration of tumor cells.
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Affiliation(s)
- Tianyu Ye
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, PR China
| | - Yufei Han
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, PR China
| | - Ruxin Wang
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, PR China
| | - Pingzhen Yan
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, PR China
| | - Shaowei Chen
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, PR China
| | - Yunlei Hou
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, PR China.
| | - Yanfang Zhao
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, PR China.
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6
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Temporal Effects of Quercetin on Tight Junction Barrier Properties and Claudin Expression and Localization in MDCK II Cells. Int J Mol Sci 2019; 20:ijms20194889. [PMID: 31581662 PMCID: PMC6801663 DOI: 10.3390/ijms20194889] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/28/2019] [Accepted: 09/29/2019] [Indexed: 01/22/2023] Open
Abstract
: Kidney stones affect 10% of the population. Yet, there is relatively little known about how they form or how to prevent and treat them. The claudin family of tight junction proteins has been linked to the formation of kidney stones. The flavonoid quercetin has been shown to prevent kidney stone formation and to modify claudin expression in different models. Here we investigate the effect of quercetin on claudin expression and localization in MDCK II cells, a cation-selective cell line, derived from the proximal tubule. For this study, we focused our analyses on claudin family members that confer different tight junction properties: barrier-sealing (Cldn1, -3, and -7), cation-selective (Cldn2) or anion-selective (Cldn4). Our data revealed that quercetin's effects on the expression and localization of different claudins over time corresponded with changes in transepithelial resistance, which was measured continuously throughout the treatment. In addition, these effects appear to be independent of PI3K/AKT signaling, one of the pathways that is known to act downstream of quercetin. In conclusion, our data suggest that quercetin's effects on claudins result in a tighter epithelial barrier, which may reduce the reabsorption of sodium, calcium and water, thereby preventing the formation of a kidney stone.
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7
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Kopa P, Macieja A, Galita G, Witczak ZJ, Poplawski T. DNA Double Strand Breaks Repair Inhibitors: Relevance as Potential New Anticancer Therapeutics. Curr Med Chem 2019; 26:1483-1493. [PMID: 29446719 DOI: 10.2174/0929867325666180214113154] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 01/22/2018] [Accepted: 01/23/2018] [Indexed: 12/19/2022]
Abstract
DNA double-strand breaks are considered one of the most lethal forms of DNA damage. Many effective anticancer therapeutic approaches used chemical and physical methods to generate DNA double-strand breaks in the cancer cells. They include: IR and drugs which mimetic its action, topoisomerase poisons, some alkylating agents or drugs which affected DNA replication process. On the other hand, cancer cells are mostly characterized by highly effective systems of DNA damage repair. There are two main DNA repair pathways used to fix double-strand breaks: NHEJ and HRR. Their activity leads to a decreased effect of chemotherapy. Targeting directly or indirectly the DNA double-strand breaks response by inhibitors seems to be an exciting option for anticancer therapy and is a part of novel trends that arise after the clinical success of PARP inhibitors. These trends will provide great opportunities for the development of DNA repair inhibitors as new potential anticancer drugs. The main objective of this article is to address these new promising advances.
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Affiliation(s)
- Paulina Kopa
- Department of Immunopathology, Faculty of Biomedical Sciences and Postgraduate Training, Medical University of Lodz, Lodz 90-752, Poland
| | - Anna Macieja
- Department of Molecular Genetics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz 90-236, Poland
| | - Grzegorz Galita
- Department of Molecular Genetics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz 90-236, Poland
| | - Zbigniew J Witczak
- Department of Pharmaceutical Sciences, Nesbitt School of Pharmacy, Wilkes University, Wilkes-Barre, PA 18766, United States
| | - Tomasz Poplawski
- Department of Molecular Genetics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz 90-236, Poland
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8
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Li Y, Xiao J, Zhang Q, Yu W, Liu M, Guo Y, He J, Liu Y. The association between anti-tumor potency and structure-activity of protein-kinases inhibitors based on quinazoline molecular skeleton. Bioorg Med Chem 2019; 27:568-577. [DOI: 10.1016/j.bmc.2018.12.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 12/19/2018] [Accepted: 12/22/2018] [Indexed: 02/03/2023]
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9
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Guntuku L, Gangasani JK, Thummuri D, Borkar RM, Manavathi B, Ragampeta S, Vaidya JR, Sistla R, Vegi NGM. IITZ-01, a novel potent lysosomotropic autophagy inhibitor, has single-agent antitumor efficacy in triple-negative breast cancer in vitro and in vivo. Oncogene 2018; 38:581-595. [PMID: 30166591 DOI: 10.1038/s41388-018-0446-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 06/18/2018] [Accepted: 06/29/2018] [Indexed: 02/07/2023]
Abstract
Autophagy is a homeostatic process that recycles damaged organelles and long-lived proteins by delivering them in double-membrane vesicles to lysosomes for degradation. Autophagy has a prominent role in survival, proliferation, and resistance of tumors in metabolic and chemotherapeutic stress conditions. Clinical trials with chloroquine-a known autophagy inhibitor-were unable to achieve complete autophagy inhibition in vivo, warranting the search for more potent autophagy inhibitors. In a process of exploring the mechanism of action of previously identified cytotoxic s-triazine analogs, we discovered that both IITZ-01 and IITZ-02 act as potent autophagy inhibitors. Treatment with these compounds resulted in the vacuolated appearance of cells due to their specific accumulation in lysosomes. In addition, these basic compounds also deacidify lysosomes as evidenced by the decrease in lysotracker red staining and inhibit maturation of lysosomal enzymes leading to lysosomal dysfunction. IITZ-01 and IITZ-02 enhance autophagosome accumulation but inhibit autophagosomal degradation by impairing lysosomal function, finally resulting in the inhibition of autophagy. Interestingly, compound IITZ-01 exhibited more than 10-fold potent autophagy inhibition along with 12- to 20-fold better cytotoxic action than CQ. IITZ-01 and IITZ-02 also abolished mitochondrial membrane potential and triggered apoptosis through the mitochondria-mediated pathway. Furthermore, IITZ-01 and IITZ-02 displayed potent antitumor action in vivo through autophagy inhibition and apoptosis induction in MDA-MB-231 breast cancer xenograft model with IITZ-01 exhibiting superior anticancer efficacy. Overall, these data demonstrate that IITZ-01 is potent autophagy inhibitor with single-agent anticancer activity and awaits further preclinical development as potential anticancer therapeutic.
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Affiliation(s)
- Lalita Guntuku
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Hyderabad, TS, India
| | - Jagadeesh Kumar Gangasani
- Crop Protection Chemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, TS, India.,Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Chennai, TN, India
| | - Dinesh Thummuri
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Hyderabad, TS, India
| | - Roshan M Borkar
- National Centre for Mass Spectrometry, CSIR-Indian Institute of Chemical Technology, Hyderabad, TS, India
| | - Bramanandam Manavathi
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, TS, India
| | - Srinivas Ragampeta
- National Centre for Mass Spectrometry, CSIR-Indian Institute of Chemical Technology, Hyderabad, TS, India
| | - Jayathirtha Rao Vaidya
- Crop Protection Chemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, TS, India.,Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Chennai, TN, India
| | - Ramakrishna Sistla
- Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad, TS, India
| | - Naidu G M Vegi
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Hyderabad, TS, India. .,Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Guwahati, Assam, India.
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10
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Design, synthesis and biological evaluation of novel series of 2H-benzo[b][1,4]oxazin-3(4H)-one and 2H-benzo[b][1,4]oxazine scaffold derivatives as PI3Kα inhibitors. Bioorg Med Chem 2018; 26:3982-3991. [DOI: 10.1016/j.bmc.2018.06.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/13/2018] [Accepted: 06/15/2018] [Indexed: 02/08/2023]
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11
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Synthesis and PI3 Kinase Inhibition Activity of Some Novel Trisubstituted Morpholinopyrimidines. Molecules 2018; 23:molecules23071675. [PMID: 29996482 PMCID: PMC6100461 DOI: 10.3390/molecules23071675] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 07/05/2018] [Accepted: 07/07/2018] [Indexed: 11/17/2022] Open
Abstract
A number of new substituted morpholinopyrimidines were prepared utilizing sequential nucleophilic aromatic substitution and cross-coupling reactions. One of the disubstituted pyrimidines was converted into two trisubstituted compounds which were screened as PI3K inhibitors relative to the well-characterized PI3K inhibitor ZSTK474, and were found to be 1.5⁻3-times more potent. A leucine linker was attached to the most active inhibitor since it would remain on any peptide-containing prodrug after cleavage by prostate-specific antigen, and it did not prevent inhibition of AKT phosphorylation and hence the inhibition of PI3K by the modified inhibitor.
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12
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Synthesis and PI 3-Kinase Inhibition Activity of Some Novel 2,4,6-Trisubstituted 1,3,5-Triazines. Molecules 2018; 23:molecules23071628. [PMID: 29973512 PMCID: PMC6100378 DOI: 10.3390/molecules23071628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 06/30/2018] [Accepted: 07/02/2018] [Indexed: 01/20/2023] Open
Abstract
A number of new trisubstituted triazine phosphatidylinositol 3-kinase (PI3K) inhibitors were prepared via a three-step procedure utilizing sequential nucleophilic aromatic substitution and cross-coupling reactions. All were screened as PI3K inhibitors relative to the well-characterized PI3K inhibitor, ZSTK474. The most active inhibitors prepared here were 2–4 times more potent than ZSTK474. A leucine linker was attached to the most active inhibitor since it would remain on any peptide-containing prodrug after cleavage by a prostate-specific antigen, and it did not prevent inhibition of protein kinase B (Akt) phosphorylation, and hence, the inhibition of PI3K by the modified inhibitor.
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13
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Alessandrini L, Manchi M, De Re V, Dolcetti R, Canzonieri V. Proposed Molecular and miRNA Classification of Gastric Cancer. Int J Mol Sci 2018; 19:E1683. [PMID: 29882766 PMCID: PMC6032377 DOI: 10.3390/ijms19061683] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 05/30/2018] [Accepted: 06/01/2018] [Indexed: 12/13/2022] Open
Abstract
Gastric cancer (GC) is a common malignant neoplasm worldwide and one of the main cause of cancer-related deaths. Despite some advances in therapies, long-term survival of patients with advanced disease remains poor. Different types of classification have been used to stratify patients with GC for shaping prognosis and treatment planning. Based on new knowledge of molecular pathways associated with different aspect of GC, new pathogenetic classifications for GC have been and continue to be proposed. These novel classifications create a new paradigm in the definition of cancer biology and allow the identification of relevant GC genomic subsets by using different techniques such as genomic screenings, functional studies and molecular or epigenetic characterization. An improved prognostic classification for GC is essential for the development of a proper therapy for a proper patient population. The aim of this review is to discuss the state-of-the-art on combining histological and molecular classifications of GC to give an overview of the emerging therapeutic possibilities connected to the latest discoveries regarding GC.
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Affiliation(s)
- Lara Alessandrini
- Pathology, IRCCS CRO National Cancer Institute, 33081 Aviano, Italy.
| | - Melissa Manchi
- Pathology, IRCCS CRO National Cancer Institute, 33081 Aviano, Italy.
| | - Valli De Re
- Immunopathology and Cancer Biomarkers, IRCCS CRO National Cancer Institute, 33081 Aviano, Italy.
| | - Riccardo Dolcetti
- The University of Queensland Diamantina Institute, Translational Research Institute, Woolloongabba, QLD 4102, Australia.
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14
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Fan YH, Ding HW, Liu DD, Song HR, Xu YN, Wang J. Novel 4-aminoquinazoline derivatives induce growth inhibition, cell cycle arrest and apoptosis via PI3Kα inhibition. Bioorg Med Chem 2018; 26:1675-1685. [DOI: 10.1016/j.bmc.2018.02.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 02/03/2018] [Accepted: 02/12/2018] [Indexed: 02/08/2023]
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15
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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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16
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Katoh T, Narita K. Total Syntheses of Liphagal: A Potent and Selective Phosphoinositide 3-Kinase α (PI3Kα) Inhibitor from the Marine Sponge Aka coralliphaga. HETEROCYCLES 2018. [DOI: 10.3987/rev-17-873] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Zhou Y, Breit B. Rhodium-Catalyzed Asymmetric N−H Functionalization of Quinazolinones with Allenes and Allylic Carbonates: The First Enantioselective Formal Total Synthesis of (−)-Chaetominine. Chemistry 2017; 23:18156-18160. [DOI: 10.1002/chem.201705059] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Yirong Zhou
- Institut für Organische Chemie and Freiburg Institute of Advanced Studies (FRIAS); Albert-Ludwigs-Universität; Alberstr. 21 79104 Freiburg Germany
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education; College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
| | - Bernhard Breit
- Institut für Organische Chemie and Freiburg Institute of Advanced Studies (FRIAS); Albert-Ludwigs-Universität; Alberstr. 21 79104 Freiburg Germany
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18
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Hafez HN, Alsalamah SA, El-Gazzar ARBA. Synthesis of thiophene and N-substituted thieno[3,2-d] pyrimidine derivatives as potent antitumor and antibacterial agents. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2017; 67:275-292. [PMID: 28858838 DOI: 10.1515/acph-2017-0028] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/15/2017] [Indexed: 11/15/2022]
Abstract
A novel series of carbamothioylamino-benzene-sulfonamide-thiophene-carboxylates 4a-c and thieno[3,2-d]pyrimidin-2-yl-amino-benzene-sulfonamides 5a-c were synthesized in a series of synthetic steps and were used as key intermediates for the synthesis of thienotriazolopyrimidine-benzene-sulfonamide derivatives 6a-c and 7a-c. Thieno[3,2-d]pyrimidinones (8 and 9) were also prepared. Compound 9 was used as an intermediate for the synthesis of imidazole/1,2,4-triazole and tetrazine functionalized thieno[3,2-d]pyrimidine derivatives (10-12). Pyrrole derivatives/pyrrolopyrimidine/pyrrolotriazolopyrimidine functionalized thiophenes (15-19) were also synthesized. Structures of the newly synthesized compounds were established by elemental analysis and spectral data. Most of the newly synthesized compounds were evaluated for their in vitro activity against three human tumor cell lines, namely, liver cancer (HepG-2), colon cancer (HT-29) and lung cancer (NCI-H460), using doxorubicin as standard. Compounds 16 (GI50 = 0.02, 0.04 and 0.06 μmol L-1, resp.) and 19b (GI50 = 0.02, 0.03 and 0.05 μmol L-1, resp.) showed higher activity against all cell lines than doxorubicin. Most of the compounds were also screened for antibacterial activity using ciprofloxacin as standard drug. Compounds 4b and 6b, both containing benzenesulfonamide linked to N-, 10 bearing imidazole moiety, and 15 and 19b,c with a thiophene-2-carboxylic acid chain, exhibited high activity against Gram-positive and Gram-negative bacteria.
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Affiliation(s)
- Hend N. Hafez
- Al-Imam Mohammad Ibn Saud Islamic University (IMSIU) , Faculty of Science, Department of Chemistry , P.O. Box 90950 Riyadh 11623, Kingdom of Saudi Arabia
- Photochemistry Department (Heterocyclic & Nucleosides Unit) , National Research Centre , Dokki 12622 , Giza , Egypt
| | - Sulaiman A. Alsalamah
- Al-Imam Mohammad Ibn Saud Islamic University (IMSIU) , Faculty of Science, Biology Department (Microbiology Unit) , P.O. Box 90950 Riyadh 11623, Kingdom of Saudi Arabia
| | - Abdel-Rhman B. A. El-Gazzar
- Al-Imam Mohammad Ibn Saud Islamic University (IMSIU) , Faculty of Science, Department of Chemistry , P.O. Box 90950 Riyadh 11623, Kingdom of Saudi Arabia
- Photochemistry Department (Heterocyclic & Nucleosides Unit) , National Research Centre , Dokki 12622 , Giza , Egypt
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19
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Zhang L, Bu T, Bao X, Liang T, Ge Y, Xu Y, Zhu Q. Design, synthesis and biological evaluation of novel 3 H -imidazole [4,5- b ] pyridine derivatives as selective mTOR inhibitors. Bioorg Med Chem Lett 2017. [DOI: 10.1016/j.bmcl.2017.06.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Xie G, Wang Z, Chen Y, Zhang S, Feng L, Meng F, Yu Z. Dual blocking of PI3K and mTOR signaling by NVP-BEZ235 inhibits proliferation in cervical carcinoma cells and enhances therapeutic response. Cancer Lett 2016; 388:12-20. [PMID: 27894954 DOI: 10.1016/j.canlet.2016.11.024] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/19/2016] [Accepted: 11/22/2016] [Indexed: 02/06/2023]
Abstract
NVP-BEZ235 is a novel dual PI3K/mTOR inhibitor that shows dramatic effects on many tumors, but its effects on cervical carcinoma cells are largely unknown. In the present study, we investigated the effects of NVP-BEZ235 on the proliferation and invasion of cervical carcinoma cells in vitro and clarified its mechanism of action. In cellular settings with human cervical carcinoma cell lines, this molecule effectively and specifically blocked dysfunctional PI3K/mTOR pathway activation, suppressed cell growth in a time- and concentration-dependent manner, led to G1 cell cycle arrest, and induced apoptosis. NVP-BEZ235 suppressed HeLa cell invasiveness and metastasis by inhibiting the PI3K/Akt/MMP-2 pathway. We further demonstrated that NVP-BEZ235 treatment in combination with cisplatin or carboplatin induced a synergistic anti-tumoral response in cervical carcinoma cells. These findings suggested that NVP-BEZ235 could regulate growth and invasion of cervical carcinoma cells; thus it may provide a potential therapy for cervical carcinoma.
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Affiliation(s)
- Guifang Xie
- Department of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Changchun, China
| | - Zhaoyong Wang
- Department of Pathology, The Second Hospital of Jilin University, Changchun, China
| | - Yong Chen
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
| | - Shuya Zhang
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Changchun, China
| | - Lu Feng
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Fanhui Meng
- Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Changchun, China
| | - Zhiyun Yu
- Department of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China; Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
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21
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Shelton J, Lu X, Hollenbaugh JA, Cho JH, Amblard F, Schinazi RF. Metabolism, Biochemical Actions, and Chemical Synthesis of Anticancer Nucleosides, Nucleotides, and Base Analogs. Chem Rev 2016; 116:14379-14455. [PMID: 27960273 DOI: 10.1021/acs.chemrev.6b00209] [Citation(s) in RCA: 235] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Nucleoside, nucleotide, and base analogs have been in the clinic for decades to treat both viral pathogens and neoplasms. More than 20% of patients on anticancer chemotherapy have been treated with one or more of these analogs. This review focuses on the chemical synthesis and biology of anticancer nucleoside, nucleotide, and base analogs that are FDA-approved and in clinical development since 2000. We highlight the cellular biology and clinical biology of analogs, drug resistance mechanisms, and compound specificity towards different cancer types. Furthermore, we explore analog syntheses as well as improved and scale-up syntheses. We conclude with a discussion on what might lie ahead for medicinal chemists, biologists, and physicians as they try to improve analog efficacy through prodrug strategies and drug combinations.
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Affiliation(s)
- Jadd Shelton
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine , 1760 Haygood Drive, NE, Atlanta, Georgia 30322, United States
| | - Xiao Lu
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine , 1760 Haygood Drive, NE, Atlanta, Georgia 30322, United States
| | - Joseph A Hollenbaugh
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine , 1760 Haygood Drive, NE, Atlanta, Georgia 30322, United States
| | - Jong Hyun Cho
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine , 1760 Haygood Drive, NE, Atlanta, Georgia 30322, United States
| | - Franck Amblard
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine , 1760 Haygood Drive, NE, Atlanta, Georgia 30322, United States
| | - Raymond F Schinazi
- Center for AIDS Research, Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine , 1760 Haygood Drive, NE, Atlanta, Georgia 30322, United States
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22
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Riquelme I, Saavedra K, Espinoza JA, Weber H, García P, Nervi B, Garrido M, Corvalán AH, Roa JC, Bizama C. Molecular classification of gastric cancer: Towards a pathway-driven targeted therapy. Oncotarget 2016; 6:24750-79. [PMID: 26267324 PMCID: PMC4694793 DOI: 10.18632/oncotarget.4990] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 07/17/2015] [Indexed: 02/07/2023] Open
Abstract
Gastric cancer (GC) is the third leading cause of cancer mortality worldwide. Although surgical resection is a potentially curative approach for localized cases of GC, most cases of GC are diagnosed in an advanced, non-curable stage and the response to traditional chemotherapy is limited. Fortunately, recent advances in our understanding of the molecular mechanisms that mediate GC hold great promise for the development of more effective treatment strategies. In this review, an overview of the morphological classification, current treatment approaches, and molecular alterations that have been characterized for GC are provided. In particular, the most recent molecular classification of GC and alterations identified in relevant signaling pathways, including ErbB, VEGF, PI3K/AKT/mTOR, and HGF/MET signaling pathways, are described, as well as inhibitors of these pathways. An overview of the completed and active clinical trials related to these signaling pathways are also summarized. Finally, insights regarding emerging stem cell pathways are described, and may provide additional novel markers for the development of therapeutic agents against GC. The development of more effective agents and the identification of biomarkers that can be used for the diagnosis, prognosis, and individualized therapy for GC patients, have the potential to improve the efficacy, safety, and cost-effectiveness for GC treatments.
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Affiliation(s)
- Ismael Riquelme
- Department of Pathology, School of Medicine, Universidad de La Frontera, CEGIN-BIOREN, Temuco, Chile
| | - Kathleen Saavedra
- Department of Pathology, School of Medicine, Universidad de La Frontera, CEGIN-BIOREN, Temuco, Chile
| | - Jaime A Espinoza
- Department of Pathology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.,UC-Center for Investigational Oncology (CITO), Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Helga Weber
- Department of Pathology, School of Medicine, Universidad de La Frontera, CEGIN-BIOREN, Temuco, Chile
| | - Patricia García
- Department of Pathology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.,UC-Center for Investigational Oncology (CITO), Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Bruno Nervi
- UC-Center for Investigational Oncology (CITO), Pontificia Universidad Católica de Chile, Santiago, Chile.,Department of Hematology Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.,Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Marcelo Garrido
- UC-Center for Investigational Oncology (CITO), Pontificia Universidad Católica de Chile, Santiago, Chile.,Department of Hematology Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alejandro H Corvalán
- UC-Center for Investigational Oncology (CITO), Pontificia Universidad Católica de Chile, Santiago, Chile.,Department of Hematology Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.,Advanced Center for Chronic Diseases (ACCDIS), Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Juan Carlos Roa
- Department of Pathology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.,UC-Center for Investigational Oncology (CITO), Pontificia Universidad Católica de Chile, Santiago, Chile.,Advanced Center for Chronic Diseases (ACCDIS), Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Carolina Bizama
- Department of Pathology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.,UC-Center for Investigational Oncology (CITO), Pontificia Universidad Católica de Chile, Santiago, Chile
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23
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Ren J, Li J, Liu X, Feng Y, Gui Y, Yang J, He W, Dai C. Quercetin Inhibits Fibroblast Activation and Kidney Fibrosis Involving the Suppression of Mammalian Target of Rapamycin and β-catenin Signaling. Sci Rep 2016; 6:23968. [PMID: 27052477 PMCID: PMC4823739 DOI: 10.1038/srep23968] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 03/17/2016] [Indexed: 02/06/2023] Open
Abstract
Quercetin, a flavonoid found in a wide variety of plants and presented in human diet, displays promising potential in preventing kidney fibroblast activation. However, whether quercetin can ameliorate kidney fibrosis in mice with obstructive nephropathy and the underlying mechanisms remain to be further elucidated. In this study, we found that administration of quercetin could largely ameliorate kidney interstitial fibrosis and macrophage accumulation in the kidneys with obstructive nephropathy. MTORC1, mTORC2, β-catenin as well as Smad signaling were activated in the obstructive kidneys, whereas quercetin could markedly reduce their abundance except Smad3 phosphorylation. In cultured NRK-49F cells, quercetin could inhibit α-SMA and fibronectin (FN) expression induced by TGFβ1 treatment. MTORC1, mTORC2, β-catenin and Smad signaling pathways were stimulated by TGFβ1 at a time dependent manner. Similar to those findings in the obstructive kidneys, mTORC1, mTORC2 and β-catenin, but not Smad signaling pathways were remarkably blocked by quercetin treatment. Together, these results suggest that quercetin inhibits fibroblast activation and kidney fibrosis involving a combined inhibition of mTOR and β-catenin signaling transduction, which may act as a therapeutic candidate for patients with chronic kidney diseases.
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Affiliation(s)
- Jiafa Ren
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Jianzhong Li
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Xin Liu
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Ye Feng
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Yuan Gui
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Junwei Yang
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Weichun He
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Chunsun Dai
- Center for Kidney Diseases, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China.,State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, Jiangsu, China
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24
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Scherbakov AM, Sorokin DV, Tatarskiy VV, Prokhorov NS, Semina SE, Berstein LM, Krasil'nikov MA. The phenomenon of acquired resistance to metformin in breast cancer cells: The interaction of growth pathways and estrogen receptor signaling. IUBMB Life 2016; 68:281-92. [PMID: 26892736 DOI: 10.1002/iub.1481] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Accepted: 01/10/2016] [Indexed: 01/02/2023]
Abstract
Metformin, a biguanide antidiabetic drug, is used to decrease hyperglycemia in patients with type 2 diabetes. Recently, the epidemiological studies revealed the potential of metformin as an anti-tumor drug for several types of cancer, including breast cancer. Anti-tumor metformin action was found to be mediated, at least in part, via activation of adenosine monophosphate-activated protein kinase (AMPK)-intracellular energy sensor, which inhibits the mammalian target of rapamycin (mTOR) and some other signaling pathways. Nevertheless, some patients can be non-sensitive or resistant to metformin action. Here we analyzed the mechanism of the formation of metformin-resistant phenotype in breast cancer cells and its role in estrogen receptor (ER) regulation. The experiments were performed on the ER-positive MCF-7 breast cancer cells and metformin-resistant MCF-7 subline (MCF-7/M) developed due to long-term metformin treatment. The transcriptional activity of NF-κB and ER was measured by the luciferase reporter gene analysis. The protein expression was determined by immunoblotting (Snail1, (phospho)AMPK, (phospho)IκBα, (phospho)mTOR, cyclin D1, (phospho)Akt and ERα) and immunohistochemical analysis (E-cadherin). We have found that: 1) metformin treatment of MCF-7 cells is accompanied with the stimulation of AMPK and inhibition of growth-related proteins including IκBα, NF-κB, cyclin D1 and ERα; 2) long-term metformin treatment lead to the appearance and progression of cross-resistance to metformin and tamoxifen; the resistant cells are characterized with the unaffected AMPK activity, but the irreversible ER suppression and constitutive activation of Akt/Snail1 signaling; 3) Akt/Snail1 signaling is involved into progression of metformin resistance. The results presented may be considered as the first evidence of the progression of cross-resistance to metformin and tamoxifen in breast cancer cells. Importantly, the acquired resistance to both drugs is based on the constitutive activation of Akt/Snail1/E-cadherin signaling that opens new perspectives to overcome the metformin/tamoxifen resistance of breast cancer.
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Affiliation(s)
- Alexander M Scherbakov
- Laboratory of Clinical Biochemistry, Institute of Clinical Oncology, N.N. Blokhin Cancer Research Centre, Moscow, Russia
| | - Danila V Sorokin
- Laboratory of Molecular Endocrinology, Institute of Carcinogenesis, N.N. Blokhin Cancer Research Centre, Moscow, Russia
| | - Victor V Tatarskiy
- Laboratory of Cell Death Mechanisms, Institute of Carcinogenesis, N.N. Blokhin Cancer Research Centre, Moscow, Russia
| | - Nikolay S Prokhorov
- Laboratory of Microbial Viruses, S.N. Winogradsky Institute of Microbiology, Russian Academy of Sciences, Moscow, Russia
| | - Svetlana E Semina
- Laboratory of Molecular Endocrinology, Institute of Carcinogenesis, N.N. Blokhin Cancer Research Centre, Moscow, Russia
| | - Lev M Berstein
- Laboratory of Oncoendocrinology, N.N. Petrov Research Institute of Oncology, St, Petersburg, Russia
| | - Mikhail A Krasil'nikov
- Laboratory of Molecular Endocrinology, Institute of Carcinogenesis, N.N. Blokhin Cancer Research Centre, Moscow, Russia
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25
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Wang L, Chen L, Yu M, Xu LH, Cheng B, Lin YS, Gu Q, He XH, Xu J. Discovering new mTOR inhibitors for cancer treatment through virtual screening methods and in vitro assays. Sci Rep 2016; 6:18987. [PMID: 26732172 PMCID: PMC4702177 DOI: 10.1038/srep18987] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Accepted: 11/27/2015] [Indexed: 12/31/2022] Open
Abstract
Mammalian target of rapamycin (mTOR) is an attractive target for new anticancer drug development. We recently developed in silico models to distinguish mTOR inhibitors and non-inhibitors. In this study, we developed an integrated strategy for identifying new mTOR inhibitors using cascaded in silico screening models. With this strategy, fifteen new mTOR kinase inhibitors including four compounds with IC50 values below 10 μM were discovered. In particular, compound 17 exhibited potent anticancer activities against four tumor cell lines, including MCF-7, HeLa, MGC-803, and C6, with IC50 values of 1.90, 2.74, 3.50 and 11.05 μM. Furthermore, cellular studies and western blot analyses revealed that 17 induces cell death via apoptosis by targeting both mTORC1 and mTORC2 within cells and arrests the cell cycle of HeLa at the G1/G0-phase. Finally, multi-nanosecond explicit solvent simulations and MM/GBSA analyses were carried out to study the inhibitory mechanisms of 13, 17, and 40 for mTOR. The potent compounds presented here are worthy of further investigation.
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Affiliation(s)
- Ling Wang
- Research Center for Drug Discovery &Institute of Human Virology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China.,Pre-Incubator for Innovative Drugs &Medicine, School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, China
| | - Lei Chen
- Research Center for Drug Discovery &Institute of Human Virology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Miao Yu
- Research Center for Drug Discovery &Institute of Human Virology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Li-Hui Xu
- Department of Cell Biology, Jinan University, Guangzhou, 510632, China
| | - Bao Cheng
- Research Center for Drug Discovery &Institute of Human Virology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Yong-Sheng Lin
- Research Center for Drug Discovery &Institute of Human Virology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Qiong Gu
- Research Center for Drug Discovery &Institute of Human Virology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Xian-Hui He
- Department of Immunobiology, Jinan University, Guangzhou, 510632, China
| | - Jun Xu
- Research Center for Drug Discovery &Institute of Human Virology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
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26
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Lu D, Qian J, Li W, Feng Q, Pan S, Zhang S. β-hydroxyisovaleryl-shikonin induces human cervical cancer cell apoptosis via PI3K/AKT/mTOR signaling. Oncol Lett 2015; 10:3434-3442. [PMID: 26788147 PMCID: PMC4665374 DOI: 10.3892/ol.2015.3769] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 06/22/2015] [Indexed: 12/31/2022] Open
Abstract
The present study aimed to investigate the inhibitory ability of β-hydroxyisovaleryl-shikonin (β-HIVS) on the proliferation of human cervical cancer HeLa cells and to identify the mechanism of this effect. The HeLa cells were treated with β-HIVS and the inhibition of cell growth was detected by an MTT assay. Flow cytometry was performed to analyze the apoptosis rate and cell cycle distribution of HeLa cells. Reverse transcription-polymerase chain reaction and western blot analysis were used to examine the expression of the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signaling pathway proteins. The results revealed that β-HIVS inhibited HeLa cell proliferation in a dose- and time-dependent manner. With the administration of increasing concentrations of β-HIVS, the apoptotic rate of HeLa cells was also increased. The cell cycle was slightly arrested at the S phase, with ~6% of cells in this phase, subsequent to treatment with 10 µM β-HIVS. In addition, β-HIVS markedly reduced the expression levels of PI3K, AKT, mTOR and 70-kDa ribosomal protein S6 kinase in HeLa cells. β-HIVS promoted cervical cancer cell apoptosis by inhibiting the PI3K/AKT/mTOR signaling pathway and suppressing downstream gene expression. The present study is expected to lead to the development of molecular targeted therapy for this signaling pathway as a novel method of cervical cancer treatment.
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Affiliation(s)
- Dan Lu
- Department of Gynecology & Obstetrics, College of Clinical Medicine, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Jing Qian
- Department of Gynecology & Obstetrics, College of Clinical Medicine, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Wei Li
- Department of Gynecology & Obstetrics, College of Clinical Medicine, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Qianqian Feng
- Department of Gynecology & Obstetrics, College of Clinical Medicine, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Shu Pan
- Department of Gynecology & Obstetrics, College of Clinical Medicine, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
| | - Siquan Zhang
- Department of Gynecology & Obstetrics, College of Clinical Medicine, Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China
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27
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Wang H, Zhu L, Hao J, Duan H, Liu S, Zhao S, Liu Q, Liu W. Co-regulation of SREBP-1 and mTOR ameliorates lipid accumulation in kidney of diabetic mice. Exp Cell Res 2015; 336:76-84. [DOI: 10.1016/j.yexcr.2015.06.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Revised: 06/11/2015] [Accepted: 06/12/2015] [Indexed: 01/25/2023]
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28
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Khanam H, Shamsuzzaman. Bioactive Benzofuran derivatives: A review. Eur J Med Chem 2015; 97:483-504. [DOI: 10.1016/j.ejmech.2014.11.039] [Citation(s) in RCA: 277] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 11/19/2014] [Accepted: 11/21/2014] [Indexed: 12/13/2022]
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29
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Wang JP, Yu YC, Chen SP, Liang HC, Lin CW, Fang K. The collective nuclear migration of p53 and phosphorylated S473 of Akt during ellipticine-mediated apoptosis in human lung epithelial cancer cells. Mol Cell Biochem 2015; 407:123-33. [PMID: 26014912 DOI: 10.1007/s11010-015-2460-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Accepted: 05/19/2015] [Indexed: 12/30/2022]
Abstract
Topoisomerase II inhibitor ellipticine effectively suppressed the growth of human non-small-cell-lung-cancer (NSCLC) epithelial cells. Previously, we reported the drug activity was consummated through parallel nucleus migration of p53 and Akt in A549 cells. While inducing cell death, the drug activity was proved related to autophagy through phosphorylated Akt at S473. In addition, ellipticine induced cytotoxicity in p53-null H1299 cells with stable expression of ectopic p53. In this work, we further demonstrated that dominant-negative Akt (S473A) or p53 shRNA inhibited ellipticine-mediated translocalization of p53 and Akt and attenuated apoptotic cell death in A549 cells. The presence of p53 predates ellipticine-mediated apoptotic cell death, assists in nucleus translocation of phosphorylated Akt and activation of autophagy pathway. Growth inhibition through collaborating p53 and phosphorylated Akt(473) in lung epithelial cancer cells provided a new perspective of the topoisomerase inhibitor as an effective cancer therapy agent.
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Affiliation(s)
- Jing-Ping Wang
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
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Ravez S, Castillo-Aguilera O, Depreux P, Goossens L. Quinazoline derivatives as anticancer drugs: a patent review (2011 - present). Expert Opin Ther Pat 2015; 25:789-804. [PMID: 25910402 DOI: 10.1517/13543776.2015.1039512] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Quinazoline is one of the most studied moieties in medicinal chemistry due to the wide range of biological properties such as the anticancer, antibacterial, anti-inflammatory, antimalarial and antihypertensive activities. During the past decades, several patents and articles have been published in international peer-reviewed literature regarding the discovery and development of original and promising quinazoline derivatives for cancer treatment. Although quinazolines are well known to inhibit EGFR, there is also a large panel of other therapeutic protein targets. AREAS COVERED This review summarized the new patents and articles published about quinazoline derivatives as anticancer drugs since 2011. EXPERT OPINION Since 2011, a lot of quinazoline compounds have shown EGFR inhibition. Unlike the first-generation EGFR inhibitors, they inhibit both wild-type and mutated EGFR. In recent years, a number of studies on quinazoline synthesis have been reported and used by several medicinal chemistry groups for better and easier development of new derivatives. Therefore, several patents have been approved for the use of quinazoline compounds as inhibitors of other kinases, histone deacetylase, Nox and some metabolic pathways. Because of the large number of proteins targeted, some high structural diversity is observed in patented quinazoline compounds. Due to the vast applications of quinazoline derivatives, development of novel quinazoline compounds as anticancer drugs remains a promising field.
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Affiliation(s)
- Séverine Ravez
- Univ Lille, Institut de Chimie Pharmaceutique Albert Lespagnol 3 rue du Professeur Laguesse , B.P. 83, 59006 Lille , France +33 3 20 96 47 02 ; +33 3 20 96 49 06 ;
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Snape TJ, Warr T. Approaches toward improving the prognosis of pediatric patients with glioma: pursuing mutant drug targets with emerging small molecules. Semin Pediatr Neurol 2015; 22:28-34. [PMID: 25976258 DOI: 10.1016/j.spen.2014.12.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Gliomas represent approximately 70% of all pediatric brain tumors, and most of these are of astrocytic lineage; furthermore, malignant or high-grade astrocytomas account for approximately 20% of pediatric astrocytoma. Treatment options for pediatric patients with glioma are limited. Although low-grade astrocytomas are relatively slow-growing tumors that can often be cured through surgical resection, a significant proportion of cases recur, as such, new treatments are desperately needed. This review covers the various approaches that are currently being made toward improving the prognosis of pediatric patients with glioma by pursuing pediatric-selective mutant drug targets with emerging small molecules.
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Affiliation(s)
- Timothy J Snape
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Lancashire, UK.
| | - Tracy Warr
- Brain Tumour Research Centre, University of Wolverhampton, Wolverhampton, UK
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Caster JM, Sethi M, Kowalczyk S, Wang E, Tian X, Nabeel Hyder S, Wagner KT, Zhang YA, Kapadia C, Man Au K, Wang AZ. Nanoparticle delivery of chemosensitizers improve chemotherapy efficacy without incurring additional toxicity. NANOSCALE 2015; 7:2805-11. [PMID: 25584654 PMCID: PMC4408549 DOI: 10.1039/c4nr07102f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Chemosensitizers can improve the therapeutic index of chemotherapy and overcome treatment resistance. Successful translation of chemosensitizers depends on the development of strategies that can preferentially deliver chemosensitizers to tumors while avoiding normal tissue. We hypothesized that nanoparticle (NP) formulation of chemosensitizers can improve their delivery to tumors which can in turn improve their therapeutic index. To demonstrate the proof of principle of this approach, we engineered NP formulations of two chemosensitizers, the PI3-kindase inhibitor wortmanin (Wtmn) and the PARP inhibitor olaparib. NP Wtmn and NP olaparib were evaluated as chemosensitizers using lung cancer cells and breast cancer cells respectively. We found Wtmn to be an efficient chemosensitizer in all tested lung-cancer cell lines reducing tumor cell growth between 20 and 60% compared to drug alone. NP formulation did not decrease its efficacy in vitro. Olaparib showed less consistent chemosensitization as a free drug or in NP formulation. NP Wtmn was further evaluated as a chemosensitizer using mouse models of lung cancer. We found that NP Wtmn is an effective chemosensitizer and more effective than free Wtmn showing a 32% reduction in tumor growth compared to free Wtmn when given with etoposide. Importantly, NP Wtmn was able to sensitize the multi-drug resistant H69AR cells to etoposide. Additionally, the combination of NP Wtmn and etoposide chemotherapy did not significantly increase toxicity. The present study demonstrates the proof of principle of using NP formulation of chemosensitizing drugs to improve the therapeutic index of chemotherapy.
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Affiliation(s)
- Joseph M Caster
- Laboratory of Nano- and Translational Medicine, Department of Radiation Oncology, Lineberger Comprehensive Cancer Center, Carolina Center for Cancer Nanotechnology Excellence, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
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Liu Z, Wu S, Wang Y, Li R, Wang J, Wang L, Zhao Y, Gong P. Design, synthesis and biological evaluation of novel thieno[3,2-d]pyrimidine derivatives possessing diaryl semicarbazone scaffolds as potent antitumor agents. Eur J Med Chem 2014; 87:782-93. [DOI: 10.1016/j.ejmech.2014.10.022] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 10/07/2014] [Accepted: 10/09/2014] [Indexed: 01/19/2023]
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Liu Z, Wang Y, Lin H, Zuo D, Wang L, Zhao Y, Gong P. Design, synthesis and biological evaluation of novel thieno[3,2-d]pyrimidine derivatives containing diaryl urea moiety as potent antitumor agents. Eur J Med Chem 2014; 85:215-27. [DOI: 10.1016/j.ejmech.2014.07.099] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 07/26/2014] [Accepted: 07/26/2014] [Indexed: 02/01/2023]
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Cai W, Ye Q, She QB. Loss of 4E-BP1 function induces EMT and promotes cancer cell migration and invasion via cap-dependent translational activation of snail. Oncotarget 2014; 5:6015-27. [PMID: 24970798 PMCID: PMC4171609 DOI: 10.18632/oncotarget.2109] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 06/15/2014] [Indexed: 12/12/2022] Open
Abstract
The cap-dependent translation is frequently deregulated in a variety of cancers associated with tumor progression. However, the molecular basis of the translation activation for metastatic progression of cancer remains largely elusive. Here, we demonstrate that activation of cap-dependent translation by silencing the translational repressor 4E-BP1 causes cancer epithelial cells to undergo epithelial-mesenchymal transition (EMT), which is associated with selective upregulation of the EMT inducer Snail followed by repression of E-cadherin expression and promotion of cell migratory and invasive capabilities as well as metastasis. Conversely, inhibition of cap-dependent translation by a dominant active mutant 4E-BP1 effectively downregulates Snail expression and suppresses cell migration and invasion. Furthermore, dephosphorylation of 4E-BP1 by mTORC1 inhibition or directly targeting the translation initiation also profoundly attenuates Snail expression and cell motility, whereas knockdown of 4E-BP1 or overexpression of Snail significantly rescues the inhibitory effects. Importantly, 4E-BP1-regulated Snail expression is not associated with its changes in the level of transcription or protein stability. Together, these findings indicate a novel role of 4E-BP1 in the regulation of EMT and cell motility through translational control of Snail expression and activity, and suggest that targeting cap-dependent translation may provide a promising approach for blocking Snail-mediated metastatic potential of cancer.
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Affiliation(s)
- Weijia Cai
- Markey Cancer Center, University of Kentucky College of Medicine, Lexington, KY, USA
- Department of Molecular and Biomedical Pharmacology, University of Kentucky College of Medicine, Lexington, KY, USA
| | - Qing Ye
- Markey Cancer Center, University of Kentucky College of Medicine, Lexington, KY, USA
- Department of Molecular and Biomedical Pharmacology, University of Kentucky College of Medicine, Lexington, KY, USA
| | - Qing-Bai She
- Markey Cancer Center, University of Kentucky College of Medicine, Lexington, KY, USA
- Department of Molecular and Biomedical Pharmacology, University of Kentucky College of Medicine, Lexington, KY, USA
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Chen KC, Yang TY, Wu CC, Cheng CC, Hsu SL, Hung HW, Chen JW, Chang GC. Pemetrexed induces S-phase arrest and apoptosis via a deregulated activation of Akt signaling pathway. PLoS One 2014; 9:e97888. [PMID: 24847863 PMCID: PMC4029963 DOI: 10.1371/journal.pone.0097888] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 04/25/2014] [Indexed: 12/16/2022] Open
Abstract
Pemetrexed is approved for first-line and maintenance treatment of patients with advanced or metastatic non-small-cell lung cancer (NSCLC). The protein kinase Akt/protein kinase B is a well-known regulator of cell survival which is activated by pemetrexed, but its role in pemetrexed-mediated cell death and its molecular mechanisms are unclear. This study showed that stimulation with pemetrexed induced S-phase arrest and cell apoptosis and a parallel increase in sustained Akt phosphorylation and nuclear accumulation in the NSCLC A549 cell line. Inhibition of Akt expression by Akt specific siRNA blocked S-phase arrest and protected cells from apoptosis, indicating an unexpected proapoptotic role of Akt in the pemetrexed-mediated toxicity. Treatment of A549 cells with pharmacological inhibitors of phosphatidylinositol 3-kinase (PI3K), wortmannin and Ly294002, similarly inhibited pemetrexed-induced S-phase arrest and apoptosis and Akt phosphorylation, indicating that PI3K is an upstream mediator of Akt and is involved in pemetrexed-mediated cell death. Previously, we identified cyclin A-associated cyclin-dependent kinase 2 (Cdk2) as the principal kinase that was required for pemetrexed-induced S-phase arrest and apoptosis. The current study showed that inhibition of Akt function and expression by pharmacological inhibitors as well as Akt siRNA drastically inhibited cyclin A/Cdk2 activation. These pemetrexed-mediated biological and molecular events were also observed in a H1299 cell line. Overall, our results indicate that, in contrast to its normal prosurvival role, the activated Akt plays a proapoptotic role in pemetrexed-mediated S-phase arrest and cell death through a mechanism that involves Cdk2/cyclin A activation.
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Affiliation(s)
- Kun-Chieh Chen
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan, Republic of China
- Institute of Biomedical Science, National Chung Hsing University, Taichung, Taiwan, Republic of China
| | - Tsung-Ying Yang
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan, Republic of China
| | - Chun-Chi Wu
- Institute of Medicine, Chung Shang Medical University, Taichung, Taiwan, Republic of China
- Department of Medical Research, Chung-Shan Medical University Hospital, Taichung, Taiwan, Republic of China
| | - Chi-Chih Cheng
- Department of Education and Research, Taichung Veterans General Hospital, Taichung, Taiwan, Republic of China
| | - Shih-Lan Hsu
- Department of Medical Research, Chung-Shan Medical University Hospital, Taichung, Taiwan, Republic of China
- Department of Education and Research, Taichung Veterans General Hospital, Taichung, Taiwan, Republic of China
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan, Republic of China
| | - Hsiao-Wen Hung
- Department of Education and Research, Taichung Veterans General Hospital, Taichung, Taiwan, Republic of China
| | - Jian-Wei Chen
- Institute of Biomedical Science, National Chung Hsing University, Taichung, Taiwan, Republic of China
- * E-mail: (JWC); (GCC)
| | - Gee-Chen Chang
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan, Republic of China
- Institute of Biomedical Science, National Chung Hsing University, Taichung, Taiwan, Republic of China
- Department of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, Republic of China
- * E-mail: (JWC); (GCC)
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Predicting mTOR inhibitors with a classifier using recursive partitioning and Naïve Bayesian approaches. PLoS One 2014; 9:e95221. [PMID: 24819222 PMCID: PMC4018356 DOI: 10.1371/journal.pone.0095221] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 03/25/2014] [Indexed: 01/31/2023] Open
Abstract
Background Mammalian target of rapamycin (mTOR) is a central controller of cell growth, proliferation, metabolism, and angiogenesis. Thus, there is a great deal of interest in developing clinical drugs based on mTOR. In this paper, in silico models based on multi-scaffolds were developed to predict mTOR inhibitors or non-inhibitors. Methods First 1,264 diverse compounds were collected and categorized as mTOR inhibitors and non-inhibitors. Two methods, recursive partitioning (RP) and naïve Bayesian (NB), were used to build combinatorial classification models of mTOR inhibitors versus non-inhibitors using physicochemical descriptors, fingerprints, and atom center fragments (ACFs). Results A total of 253 models were constructed and the overall predictive accuracies of the best models were more than 90% for both the training set of 964 and the external test set of 300 diverse compounds. The scaffold hopping abilities of the best models were successfully evaluated through predicting 37 new recently published mTOR inhibitors. Compared with the best RP and Bayesian models, the classifier based on ACFs and Bayesian shows comparable or slightly better in performance and scaffold hopping abilities. A web server was developed based on the ACFs and Bayesian method (http://rcdd.sysu.edu.cn/mtor/). This web server can be used to predict whether a compound is an mTOR inhibitor or non-inhibitor online. Conclusion In silico models were constructed to predict mTOR inhibitors using recursive partitioning and naïve Bayesian methods, and a web server (mTOR Predictor) was also developed based on the best model results. Compound prediction or virtual screening can be carried out through our web server. Moreover, the favorable and unfavorable fragments for mTOR inhibitors obtained from Bayesian classifiers will be helpful for lead optimization or the design of new mTOR inhibitors.
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Benzofuran derivatives as anticancer inhibitors of mTOR signaling. Eur J Med Chem 2014; 81:181-91. [PMID: 24836070 DOI: 10.1016/j.ejmech.2014.05.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 03/14/2014] [Accepted: 05/02/2014] [Indexed: 12/16/2022]
Abstract
A series of 32 derivatives and isosteres of the mTOR inhibitor 2 were synthesized and compared for their cytotoxicity in radioresistant SQ20B cancer cell line. Several of these compounds, in particular 30b, were significantly more cytotoxic than 2. Importantly, 30b was shown to block both mTORC1 and Akt signaling, suggesting insensitivity to the resistance associated to Akt overactivation observed with rapamycin derivatives currently used in clinic.
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Kamishima T, Kikuchi T, Narita K, Katoh T. Biogenetically Inspired Total Synthesis of (+)-Liphagal: A Potent and Selective Phosphoinositide 3-Kinase α (PI3Kα) Inhibitor from the Marine SpongeAka coralliphaga. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402082] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Oka Y, Yabuuchi T, Oi T, Kuroda S, Fujii Y, Ohtake H, Inoue T, Wakahara S, Kimura K, Fujita K, Endo M, Taguchi K, Sekiguchi Y. Discovery of N-{5-[3-(3-hydroxypiperidin-1-yl)-1,2,4-oxadiazol-5-yl]-4-methyl-1,3-thiazol-2-yl}acetamide (TASP0415914) as an orally potent phosphoinositide 3-kinase γ inhibitor for the treatment of inflammatory diseases. Bioorg Med Chem 2013; 21:7578-83. [DOI: 10.1016/j.bmc.2013.10.042] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2013] [Revised: 10/25/2013] [Accepted: 10/26/2013] [Indexed: 11/27/2022]
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