1
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Ibrahim NSM, Kadry HH, Zaher AF, Mohamed KO. Synthesis of novel pyrimido[4,5-b]quinoline derivatives as dual EGFR/HER2 inhibitors as anticancer agents. Arch Pharm (Weinheim) 2024; 357:e2300513. [PMID: 38148301 DOI: 10.1002/ardp.202300513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 12/28/2023]
Abstract
A series of novel N-aryl-5-aryl-6,7,8,9-tetrahydropyrimido[4,5-b]quinolin-4-amines 4a-4l was synthesized as potential anticancer agents through Dimroth rearrangement reaction of intermediates 3a-3c. Pyrimido[4,5-b]quinolines 4a-4l showed promising activity against the Michigan Cancer Foundation-7 (MCF-7) cell line, compared with lapatinib as the reference drug. Compounds 4d, 4h, 4i, and 4l demonstrated higher cytotoxic activity than lapatinib, with IC50 values of 2.67, 6.82, 4.31, and 1.62 µM, respectively. Compounds 4d, 4i, and 4l showed promising epidermal growth factor receptor (EGFR) inhibition with IC50 values of 0.065, 0.116, and 0.052 µM, respectively. These compounds were subjected to human epidermal growth factor receptor 2 (HER2) inhibition and showed IC50 values of 0.09, 0.164, and 0.055 µM, respectively. Compounds 4d, 4i, and 4l are good candidates as dual EGFR/HER2 inhibitors. The most active compound, 4l, was subjected to cell-cycle analysis and induced cell-cycle arrest at the S phase. Compound 4l induced apoptosis 60-fold compared with control untreated MCF-7 cells. 4l can inhibit cancer metastasis. It reduced MCF-7 cell infiltration and metastasis by 45% compared with control untreated cells.
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Affiliation(s)
- Nahla Said M Ibrahim
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Hanan H Kadry
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Ashraf F Zaher
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Khaled O Mohamed
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Sinai University-Arish Branch, Arish, Egypt
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2
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Wang DQ, Wang YY, Shi YL, Zeng B, Lin ZJ, Deng Q, Ming J. Correlation between connexin 43 expression in circulating tumor cells and biological characteristics of breast cancer. Heliyon 2023; 9:e18697. [PMID: 37583757 PMCID: PMC10424078 DOI: 10.1016/j.heliyon.2023.e18697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 07/20/2023] [Accepted: 07/25/2023] [Indexed: 08/17/2023] Open
Abstract
Background Connexin 43 (Cx43) has been closely linked to the occurrence and progression of breast cancer. Distant metastasis of breast cancer is aided by the epithelial-mesenchymal transition of circulating tumor cells (CTCs). However, the impact of Cx43 expression on CTCs and the extent of its role in the disease remain unclear. Methods We determined CTCs in 156 patients, who had breast cancer with a disease course of two or more years. We also measured the expression of Cx43 in the CTCs. The CTCs were detected in the blood of 139 of these patients. These 139 patients were divided into two groups: the Cx43 group and the non-Cx43 group based on their Cx43 expression. Results Overall, Cx43 expression was found in 83 of the 139 patients (59.7%, 83/139 cases). The two groups significantly differed in terms of the number of mixed biphenotypic type CTCs and the total number of CTCs (P < 0.05). There were significant correlations between Cx43 expression and Ki67 expression, tumor size, lymph node metastasis, and TNM stage (P < 0.05 for all). The data suggested that patients with Cx43 expression had a higher risk of distant metastasis and had later-stage disease. The difference in Cx43 expression between patients with and without epidermal growth factor receptor 2 (Her2) overexpression was statistically significant (P < 0.05). The difference in disease-free survival (DFS) between the two groups was statistically significant (P = 0.03), and the Cx43 group had a shorter duration of DFS. Univariate Cox regression analysis revealed that Cx43 expression, Her2 expression, and tumor size were significantly correlated with DFS (P = 0.03, 0.0023, and 0.01, respectively). Conclusion Cx43 expression in the CTCs of patients with breast cancer is a cancer-promoting factor.
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Affiliation(s)
- Dan-Qing Wang
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, People's Republic of China
| | - Yuan-Yuan Wang
- Department of Emergency, Xi'an Central Hospital, Xi'an 710003, People's Republic of China
| | - Yan-Ling Shi
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, People's Republic of China
| | - Bin Zeng
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, People's Republic of China
| | - Zi-Jing Lin
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, People's Republic of China
| | - Qin Deng
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, People's Republic of China
| | - Jia Ming
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, People's Republic of China
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3
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Nafie MS, Kishk SM, Mahgoub S, Amer AM. Quinoline-based thiazolidinone derivatives as potent cytotoxic and apoptosis-inducing agents through EGFR inhibition. Chem Biol Drug Des 2021; 99:547-560. [PMID: 34873844 DOI: 10.1111/cbdd.13997] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/13/2021] [Accepted: 12/01/2021] [Indexed: 01/06/2023]
Abstract
Quinoline-based thiazolidinone heterocycles exhibited potent activity in the field of cancer therapy. Hence, ten quinoline-based thiazolidinone derivatives were evaluated for their anticancer activity through cytotoxic activity, epidermal growth factor receptor (EGFR) inhibition pathway, apoptosis investigation through flow cytometric analyses, RT-PCR gene expression, in vivo solid-Ehrlich carcinoma model, and finally in silico approach for highlighting the interaction pose. Results revealed that compound 7 exhibited cytotoxic activity against HCT-116 cells with an IC50 value of 7.43 µM compared to 5-FU (IC50 = 11.36 µM) with moderate cytotoxic activity against the FHC (IC50 = 35.27 µM), and it exhibited remarkable inhibition activity of EGFR with IC50 value of 96.43 nM compared to Erlotinib (IC50 = 78.65 nM). Moreover, it significantly stimulated apoptotic colon cancer cell death with 171.58-fold arresting cell cycle at G2 and S-phases. Additionally, it ameliorated both biochemical and histochemical structures near normal with tumor inhibition ratio of 52.92% compared to 5-FU of 57.16%, with immunohistochemical examinations of EGFR inhibition in the treated group compared to control. Finally, molecular docking study highlighted its good binding affinity through good interactive binding pose inside the EGFR protein. In conclusion, the potent EGFR inhibitory activity of compound 7 was investigated using three integrated approaches in vitro, in vivo, and in silico, so it worth be validated and developed as a chemotherapeutic anticancer agent.
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Affiliation(s)
- Mohamed S Nafie
- Chemistry Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
| | - Safaa M Kishk
- Pharmaceutical Medicinal Chemistry Department, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Sebaey Mahgoub
- Proteomics and Metabolomics Unit, Department of Basic Research, Children's Cancer Hospital Egypt 57357, Cairo, Egypt
| | - Atef M Amer
- Chemistry Department, Faculty of Science, Zagazig University, Zagazig, Egypt
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4
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Jost N, Christ T, Magyar J. New Strategies for the Treatment of Atrial Fibrillation. Pharmaceuticals (Basel) 2021; 14:ph14090926. [PMID: 34577626 PMCID: PMC8466466 DOI: 10.3390/ph14090926] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 12/19/2022] Open
Abstract
Atrial fibrillation (AF) is the most prevalent cardiac arrhythmia in the clinical practice. It significantly contributes to the morbidity and mortality of the elderly population. Over the past 25-30 years intense effort in basic research has advanced the understanding of the relationship between the pathophysiology of AF and atrial remodelling. Nowadays it is clear that the various forms of atrial remodelling (electrical, contractile and structural) play crucial role in initiating and maintaining the persistent and permanent types of AF. Unlike in ventricular fibrillation, in AF rapid ectopic firing originating from pulmonary veins and re-entry mechanism may induce and maintain (due to atrial remodelling) this complex cardiac arrhythmia. The present review presents and discusses in detail the latest knowledge on the role of remodelling in AF. Special attention is paid to novel concepts and pharmacological targets presumably relevant to the drug treatment of atrial fibrillation.
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Affiliation(s)
- Norbert Jost
- Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, University of Szeged, 6725 Szeged, Hungary
- Department of Pharmacology and Pharmacotherapy, Interdisciplinary Excellence Centre, University of Szeged, 6725 Szeged, Hungary
- ELKH-SZTE Research Group for Cardiovascular Pharmacology, Eötvös Loránd Research Network, 6725 Szeged, Hungary
- Correspondence:
| | - Torsten Christ
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany;
- DZHK (German Center for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, 20246 Hamburg, Germany
| | - János Magyar
- Department of Physiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
- Department of Sport Physiology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
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5
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Environmentally Friendly Nafion-Catalyzed Synthesis of Substituted 2-Ethyl-3-Methylquinolines from Aniline and Propionaldehyde under Microwave Irradiation. Catalysts 2021. [DOI: 10.3390/catal11080877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Herein, we report a facile synthetic methodology for the preparation of 2,3-dialkylquinolines from anilines and propionaldehydes. This cyclization involved environmentally friendly Nafion® NR50 as an acidic catalyst with microwave irradiation as the heating source. A series of substituted 2-ethyl-3-methylquinolines were prepared from various anilines and propionaldehyde derivatives through this protocol with good to excellent yields. Some new chemical structures were confirmed by X-ray single-crystal diffraction analysis and the related data were provided. The plausible reaction mechanism studies are also discussed.
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6
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Li ZL, Mi J, Lu L, Luo Q, Liu X, Yan YM, Jin B, Cao YL, Zeng XX, Ran LW. The main anthocyanin monomer of Lycium ruthenicum Murray induces apoptosis through the ROS/PTEN/PI3K/Akt/caspase 3 signaling pathway in prostate cancer DU-145 cells. Food Funct 2021; 12:1818-1828. [PMID: 33527955 DOI: 10.1039/d0fo02382e] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Anthocyanins have been reported to have effective chemopreventive activity. Lycium ruthenicum Murray is rich in anthocyanins and exhibits many biological activities. The purpose of this study was to investigate the effects and possible biological mechanism of the main anthocyanin monomer (Pt3G) of Lycium ruthenicum Murray on prostate cancer DU-145 cells. The cell proliferation was detected by methyl thiazolyl tetrazolium assay. The cell apoptosis rates were assessed by flow cytometric analysis and TUNEL assay. The expressions of apoptosis related proteins were evaluated by western blotting. Our data demonstrated that Pt3G inhibited cell proliferation, induced apoptosis and promoted cell cycle arrest at the S phase in a concentration-dependent manner (0, 100, 200 and 400 μg mL-1). Furthermore, it was shown that Pt3G decreased the mitochondrial membrane permeability through regulating the expressions of Bax and Bcl-2. Western blot analysis indicated that Pt3G significantly increased the expression of PTEN and then activated the PI3K/Akt-mediated caspase 3 pathway. In addition, our results also suggested that Pt3G activated the PTEN gene to induce the apoptosis of DU-145 cells by stimulating the overproduction of ROS. To sum up, these results indicate that Pt3G inhibits cell proliferation and induces apoptosis through the ROS/PTEN/PI3K/Akt/caspase 3 signaling pathway in prostate cancer DU-145 cells. Therefore, Pt3G of Lycium ruthenicum Murray may be a potential anti-proliferative agent for the prevention or treatment of prostate cancer.
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Affiliation(s)
- Zhan-Long Li
- College of Public Health and Management, Ningxia Medical University, Yinchuan 750004, China.
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7
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Taheri S, Nazifi M, Mansourian M, Hosseinzadeh L, Shokoohinia Y. Ugi efficient synthesis, biological evaluation and molecular docking of coumarin-quinoline hybrids as apoptotic agents through mitochondria-related pathways. Bioorg Chem 2019; 91:103147. [DOI: 10.1016/j.bioorg.2019.103147] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 07/20/2019] [Accepted: 07/22/2019] [Indexed: 12/19/2022]
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8
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Wang F, Li Y, Zhang Z, Wang J, Wang J. SHCBP1 regulates apoptosis in lung cancer cells through phosphatase and tensin homolog. Oncol Lett 2019; 18:1888-1894. [PMID: 31423258 PMCID: PMC6614682 DOI: 10.3892/ol.2019.10520] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 05/17/2019] [Indexed: 12/14/2022] Open
Abstract
Src homologous and collagen (SHC) SH2-binding protein 1 (SHCBP1) is a member of the SHC family, and is overexpressed in numerous types of cancer. In addition, apoptosis serves an important role in the development of cancer. The purpose of this study was to examine the effect of SHCBP1 on apoptosis and its potential underlying mechanism in lung cancer cells. Apoptosis was detected by flow cytometry and caspase-3 activity analysis. The expression levels of SHCBP1 and phosphatase and tensin homolog (PTEN) were detected by western blot analysis and reverse transcription-quantitative polymerase chain reaction. Cell viability was determined by MTT assay. The results indicated that SHCBP1 was increased in lung cancer cell lines and lung cancer tissues compared with in normal lung cell lines and tissues. The apoptosis of lung cancer cells was significantly increased by SHCBP1 small interfering RNA (siRNA), as indicated by the increased number of apoptotic cells and enhanced caspase-3 activity. In addition, it was demonstrated that PTEN expression was modulated by SHCBP1 knockdown; silencing of SHCBP1 expression led to a significant increase in PTEN expression. Furthermore, inhibition of PTEN by siRNA reversed the increase in apoptosis induced by SHCBP1 siRNA. These results suggested that SHCBP1 may be upregulated in lung cancer and it may serve a key role in the apoptosis of lung cancer cells; this effect was associated with the expression of PTEN.
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Affiliation(s)
- Fei Wang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Yi Li
- Department of Thoracic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Zhe Zhang
- Department of Neurology, Harbin Children's Hospital, Harbin, Heilongjiang 150086, P.R. China
| | - Jingxin Wang
- Department of Pharmacy, Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Jinghao Wang
- Department of Pharmacy, The First Affiliated Hospital, Jinan University, Guangzhou, Guangdong 510630, P.R. China
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9
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Cui Y, Wang J, Liu S, Qu D, Jin H, Zhu L, Yang J, Zhang J, Li Q, Zhang Y, Yao Y. miR‐216a promotes breast cancer cell apoptosis by targeting
PKC
α. Fundam Clin Pharmacol 2019; 33:397-404. [PMID: 31119784 DOI: 10.1111/fcp.12481] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 04/22/2019] [Accepted: 05/10/2019] [Indexed: 12/28/2022]
Affiliation(s)
- Ying Cui
- Department of Radiation Oncology Harbin Medical University Cancer Hospital Heilongjiang 150081 China
| | - Jinghao Wang
- Department of Pharmacy the First Affiliated Hospital Jinan University Guangzhou 510630 China
| | - Shanshan Liu
- Department of Radiation Oncology Harbin Medical University Cancer Hospital Heilongjiang 150081 China
| | - Di Qu
- Department of Medical Oncology the Second Affiliated Hospital of Harbin Medical University Heilongjiang 150086 China
| | - Hong Jin
- Department of Gynecology Harbin Medical University Cancer Hospital Heilongjiang 150081 China
| | - Lin Zhu
- Department of Radiation Oncology Harbin Medical University Cancer Hospital Heilongjiang 150081 China
| | - Jiani Yang
- Department of Medical Oncology Harbin Medical University Cancer Hospital Heilongjiang 150081China
| | - Jingchun Zhang
- Department of Medical Oncology Harbin Medical University Cancer Hospital Heilongjiang 150081China
| | - Qingwei Li
- Department of Medical Oncology Harbin Medical University Cancer Hospital Heilongjiang 150081China
| | - Yanqiao Zhang
- Department of Medical Oncology Harbin Medical University Cancer Hospital Heilongjiang 150081China
| | - Yuanfei Yao
- Department of Medical Oncology Harbin Medical University Cancer Hospital Heilongjiang 150081China
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10
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Wang J, Wu X, Wang J, Shan L. JARID1B modulates breast cancer cell apoptosis by regulating p53 expression. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2018; 11:4529-4536. [PMID: 31949850 PMCID: PMC6962977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 07/10/2018] [Indexed: 06/10/2023]
Abstract
Jumonji AT-rich interactive domain 1B (JARID1B) has been implicated in breast cancer progression, but its role in apoptosis has not been explored. The present study was designed to investigate the effect of JARID1B on breast cancer cell apoptosis. Apoptosis was assessed by TUNEL, flow cytometry and caspase-3 activity. JARID1B and p53 expression were examined by Western blot. Cell viability was measured by an MTT assay. We found that JARID1B is overexpressed in the breast cancer cell line and in breast cancer tissues. Upregulated expression of JARID1B in breast cancer tissues correlates with poor patient prognosis. The apoptosis of breast cancer cells is significantly increased by RNA interference targeting JARID1B. Moreover, the expression of p53 is modulated by JARID1B; the silencing of JARID1B exhibits greatly increased p53 expression at the protein level. The inhibition of p53 by small interfering RNA (siRNA) reverses the JARID1B siRNA-induced increase of apoptosis. Our results collectively suggest that JARID1B plays a key role in breast cancer cell apoptosis, and it may partially achieve this role through p53.
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Affiliation(s)
- Jinghao Wang
- Department of Pharmacy, The First Affiliated Hospital, Jinan UniversityGuangzhou, China
| | - Xiaosong Wu
- Department of Pharmacy, The First Affiliated Hospital, Jinan UniversityGuangzhou, China
| | - Jingxin Wang
- Department of Pharmacy, Hongqi Hospital of Mudanjiang Medical UniversityHeilongjiang, China
| | - Luchen Shan
- Institute of New Drug Research and Guangzhou Key Laboratory of Innovative Chemical Drug Research in Cardio-cerebrovascular Diseases, Jinan University College of PharmacyGuangzhou, China
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Arun A, Ansari MI, Popli P, Jaiswal S, Mishra AK, Dwivedi A, Hajela K, Konwar R. New piperidine derivative DTPEP acts as dual-acting anti-breast cancer agent by targeting ERα and downregulating PI3K/Akt-PKCα leading to caspase-dependent apoptosis. Cell Prolif 2018; 51:e12501. [PMID: 30091186 DOI: 10.1111/cpr.12501] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 06/02/2018] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES In our ongoing studies to develop ER targeting agents, we screened for dual-acting molecules with a hypothesis that a single molecule can also target both ER positive and negative groups of breast cancer. MATERIALS AND METHODS 1-(2-(4-(Dibenzo[b,f]thiepin-10-yl)phenoxy)ethyl)piperidine (DTPEP) was synthesized and screened in both MCF-7 (ER+ve) and MDA-MB-231 (ER-ve) cells. Assays for analysis of cell cycle, ROS, apoptosis and MMP loss were carried out using flow cytometry. Its target was investigated using western blot, transactivation assay and RT-PCR. In vivo efficacy of DTPEP was validated in LA-7 syngeneic rat mammary tumour model. RESULTS Here, we report identification of dual-acting molecule DTPEP that downregualtes PI3K/Akt and PKCα expression, induces ROS and ROS-dependent apoptosis, loss of mitochondrial membrane potential, induces expression of caspase indicative of both intrinsic and extrinsic apoptosis in MCF-7 and MDA-MB-231 cells. In MCF-7 cells, DTPEP downregulates ERα expression and activation. In MDA-MB-231 cells, primary cellular target of DTPEP is not clearly known, but it downregualtes PI3K/Akt and PKCα expression. In vivo study showed regression of LA-7 syngeneic mammary tumour in SD rat. CONCLUSIONS We identified a new dual-acting anti-breast cancer molecules as a proof of concept which is capable of targeting both ER-positive and ER-negative breast cancer.
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Affiliation(s)
- A Arun
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow, UP, India
| | - M I Ansari
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, UP, India
| | - P Popli
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow, UP, India
| | - S Jaiswal
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, UP, India
| | - A K Mishra
- Department of Endocrine Surgery, King George's Medical University, Lucknow, UP, India
| | - A Dwivedi
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow, UP, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-Central Drug Research Institute Campus, Lucknow, UP, India
| | - K Hajela
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, UP, India
| | - R Konwar
- Endocrinology Division, CSIR-Central Drug Research Institute, Lucknow, UP, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-Central Drug Research Institute Campus, Lucknow, UP, India
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12
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Zhang H, Zhang X, Li X, Meng WB, Bai ZT, Rui SZ, Wang ZF, Zhou WC, Jin XD. Effect of CCNB1 silencing on cell cycle, senescence, and apoptosis through the p53 signaling pathway in pancreatic cancer. J Cell Physiol 2018; 234:619-631. [PMID: 30069972 DOI: 10.1002/jcp.26816] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 04/30/2018] [Indexed: 01/09/2023]
Abstract
Pancreatic cancer (PC) is a serious malignancy with high mortality and poor prognosis due to nonspecific incipient symptoms and early metastasis. Also, increasing evidence indicates that a panel of genes is newly identified in the pathogenesis of PC. As is a regulatory subunit, elevated cyclin B1 (CCNB1) expression has been detected in different cancers including PC. This study is designed to investigate the effects of CCNB1 silencing on cell cycle, senescence, and apoptosis through the p53 signaling pathway in PC. PC tissues and normal pancreatic tissues were collected. Cells were transfected and assigned into different groups. The expressions of CCNB1, p53, MDM2, Bax, caspase-9, caspase-3, and p21 in tissues and cells were detected by reverse transcription quantitative polymerase chain reaction and western blot analysis. β-Galactosidase staining, MTT assay, and flow cytometry were conducted to test cell senescence, proliferation, cell cycle, and apoptosis. PC tissues showed higher expressions of CCNB1 and MDM2 and lower expressions of Bax, caspase-9, caspase-3, and p21. Cells transfected with shCCNB1 had lower expressions of CCNB1 and MDM2, whereas higher expressions of Bax, caspase-9, caspase-3, p53, and p21. The shCCNB1 group had decreased proliferation and S-phase cell proportion and increased apoptosis, senescence, and G0/G1-phase cell proportion. The PFT-α group showed higher expressions of MDM2 and lower expressions of Bax, caspase-9, caspase-3, p53, and p21. The PFT-α group had increased proliferation and S-phase cell proportion and declined apoptosis, senescence, and G0/G1-phase cell proportion. CCNB1 silencing inhibits cell proliferation and promotes cell senescence via activation of the p53 signaling pathway in PC.
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Affiliation(s)
- Hui Zhang
- The Second Department of General Surgery, the First Hospital of Lanzhou University, Institute of Hepatopancreatobiliary Surgery of Gansu, Lanzhou, P. R. China.,Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, Lanzhou, P. R. China
| | - Xuan Zhang
- Northwest Minzu University, Lanzhou, P. R. China
| | - Xun Li
- The Second Department of General Surgery, the First Hospital of Lanzhou University, Institute of Hepatopancreatobiliary Surgery of Gansu, Lanzhou, P. R. China.,Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, Lanzhou, P. R. China
| | - Wen-Bo Meng
- The Second Department of General Surgery, the First Hospital of Lanzhou University, Institute of Hepatopancreatobiliary Surgery of Gansu, Lanzhou, P. R. China.,Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, Lanzhou, P. R. China
| | - Zhong-Tian Bai
- The Second Department of General Surgery, the First Hospital of Lanzhou University, Institute of Hepatopancreatobiliary Surgery of Gansu, Lanzhou, P. R. China.,Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, Lanzhou, P. R. China
| | - Shao-Zhen Rui
- The Second Department of General Surgery, the First Hospital of Lanzhou University, Institute of Hepatopancreatobiliary Surgery of Gansu, Lanzhou, P. R. China.,Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, Lanzhou, P. R. China
| | - Zheng-Feng Wang
- The Second Department of General Surgery, the First Hospital of Lanzhou University, Institute of Hepatopancreatobiliary Surgery of Gansu, Lanzhou, P. R. China.,Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, Lanzhou, P. R. China
| | - Wen-Ce Zhou
- The Second Department of General Surgery, the First Hospital of Lanzhou University, Institute of Hepatopancreatobiliary Surgery of Gansu, Lanzhou, P. R. China.,Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, Lanzhou, P. R. China
| | - Xiao-Da Jin
- University of South China, Hengyang, P. R. China
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13
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Korcz M, Sączewski F, Bednarski PJ, Kornicka A. Synthesis, Structure, Chemical Stability, and In Vitro Cytotoxic Properties of Novel Quinoline-3-Carbaldehyde Hydrazones Bearing a 1,2,4-Triazole or Benzotriazole Moiety. Molecules 2018; 23:E1497. [PMID: 29925826 PMCID: PMC6100353 DOI: 10.3390/molecules23061497] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 06/15/2018] [Accepted: 06/16/2018] [Indexed: 11/23/2022] Open
Abstract
A small library of novel quinoline-3-carbaldehyde hydrazones (Series 1), acylhydrazones (Series 2), and arylsulfonylhydrazones (Series 3) bearing either a 1,2,4-triazole or benzotriazole ring at position 2 was prepared, characterized by elemental analyses and IR, NMR, and MS spectra, and then subjected to in vitro cytotoxicity studies on three human tumor cell lines: DAN-G, LCLC-103H, and SISO. In general, compounds 4, 6, and 8 substituted with a 1,2,4-triazole ring proved to be inactive, whereas the benzotriazole-containing quinolines 5, 7, and 9 elicited pronounced cancer cell growth inhibitory effects with IC50 values in the range of 1.23⁻7.39 µM. The most potent 2-(1H-benzotriazol-1-yl)-3-[2-(pyridin-2-yl)hydrazonomethyl]quinoline (5e) showed a cytostatic effect on the cancer cell lines, whereas N′-[(2-(1H-benzotriazol-1-yl)quinolin-3-yl)methylene]-benzohydrazide (7a) and N′-[(2-1H-benzotriazol-1-yl)quinolin-3-yl)methylene]-naphthalene-2-sulfonohydrazide (9h) exhibited selective activity against the pancreas cancer DAN-G and cervical cancer SISO cell lines. Based on the determined IC50 values, the compound 5e seems to be leading compound for further development as anticancer agent.
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Affiliation(s)
- Martyna Korcz
- Department of Chemical Technology of Drugs, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416 Gdańsk, Poland.
| | - Franciszek Sączewski
- Department of Chemical Technology of Drugs, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416 Gdańsk, Poland.
| | - Patrick J Bednarski
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, University of Greifswald, F.-L. Jahn Strasse 17, D-17489 Greifswald, Germany.
| | - Anita Kornicka
- Department of Chemical Technology of Drugs, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416 Gdańsk, Poland.
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14
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Hsieh CH, Wang JP, Chiu CC, Liu CY, Yao CF, Fang K. A triazole-conjugated benzoxazone induces reactive oxygen species and promotes autophagic apoptosis in human lung cancer cells. Apoptosis 2017; 23:1-15. [DOI: 10.1007/s10495-017-1432-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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15
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Liu CY, Hsieh CH, Kim SH, Wang JP, Ni YL, Su CL, Yao CF, Fang K. An indolylquinoline derivative activates DNA damage response and apoptosis in human hepatocellular carcinoma cells. Int J Oncol 2016; 49:2431-2441. [PMID: 27748837 DOI: 10.3892/ijo.2016.3717] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 09/14/2016] [Indexed: 12/17/2022] Open
Abstract
Human liver cancer is one of the most frequently diagnosed cancers worldwide. The development of resistance to therapy limits the application against the disease. To improve treatment, new effective anticancer agents are constantly pursued. Previously, we reported that an indolylquinoline, 3-((7-ethyl-1H-indol-3-yl)-methyl)-2-methylquinoline (EMMQ), is effective in suppressing the growth of human lung cancer by impairing mitochondria functions. The present study revealed that EMMQ inhibited cell growth and induced apoptosis in liver cancer cells, but not in normal cells. This study demonstrated that EMMQ induced DNA damage by activating p53 and γ-H2AX and cell arrest by suppressing cyclin D1 and CDK2. Damaged DNA injured mitochondrial functions by lowering the membrane potential and producing reactive oxygen species. The subsequent mitochondrial cytochrome c release attenuated pro-survival signals and increased apoptotic characteristics. Introduction of p53 shRNA abrogated drug effects by reducing DNA damage while maintaining mitochondria integrity. In brief, the study demonstrates that the effectiveness of EMMQ accentuated apoptosis of hepatocarcinoma cells by activating p53. Based on these collective findings, the study offered a new perspective of EMMQ that was shown to be a promising candidate to treat liver cancer.
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Affiliation(s)
- Chun-Yen Liu
- Department of Life Science, National Taiwan Normal University, Taipei 116, Taiwan, R.O.C
| | - Chang-Hung Hsieh
- Department of Life Science, National Taiwan Normal University, Taipei 116, Taiwan, R.O.C
| | - Seung-Hun Kim
- Department of Life Science, National Taiwan Normal University, Taipei 116, Taiwan, R.O.C
| | - Jing-Ping Wang
- Department of Life Science, National Taiwan Normal University, Taipei 116, Taiwan, R.O.C
| | - Yu-Lin Ni
- Department of Life Science, National Taiwan Normal University, Taipei 116, Taiwan, R.O.C
| | - Chun-Li Su
- Department of Human Development and Family Studies, National Taiwan Normal University, Taipei 116, Taiwan, R.O.C
| | - Ching-Fa Yao
- Department of Chemistry, National Taiwan Normal University, Taipei 116, Taiwan, R.O.C
| | - Kang Fang
- Department of Life Science, National Taiwan Normal University, Taipei 116, Taiwan, R.O.C
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16
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Mondal R, Khamarui S, Maiti DK. CuBr-ZnI 2 Combo-Catalysis for Mild Cu I-Cu III Switching and sp 2 C-H Activated Rapid Cyclization to Quinolines and Their Sugar-Based Chiral Analogues: A UV-Vis and XPS Study. ACS OMEGA 2016; 1:251-263. [PMID: 31457128 PMCID: PMC6640751 DOI: 10.1021/acsomega.6b00185] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 08/15/2016] [Indexed: 06/10/2023]
Abstract
An unprecedented CuBr-ZnI2 combo-catalyzed mild Cu1-CuIII switching activation of sp2 C-H of highly electron-rich arenes is reported. Anilines, aldehydes, and terminal alkynes were rapidly coupled together at ambient temperature to construct a ubiquitous quinoline framework through cyclization of the C≡C bond. This smart solvent-free strategy was exploited for the direct synthesis of valuable 4-substituted, 2,4-disubstituted, and thermally labile sugar-based chiral quinolines in good yields. In contrast to the frequently used imine-alkyne cyclization reaction, this uncommonly mild CuI-CuIII combo-catalysis for a rapid three-component cyclization is expected to proceed through the formation of a flexible propargyl amine intermediate, which provides a CuI-procatalyst for rapid sp2 C-H activation with cyclization involving transient CuIII species. The in situ generation of transient CuIII species was confirmed through online ultraviolet-visible spectroscopy (UV-vis), electrospray ionization mass spectrometry (ESI-MS), and X-ray photoelectron spectroscopy (XPS) analyses.
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17
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Connexin's Connection in Breast Cancer Growth and Progression. Int J Cell Biol 2016; 2016:9025905. [PMID: 27642298 PMCID: PMC5011527 DOI: 10.1155/2016/9025905] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 07/18/2016] [Indexed: 12/26/2022] Open
Abstract
Gap junctions are cell-to-cell junctions that are located in the basolateral surface of two adjoining cells. A gap junction channel is composed of a family of proteins called connexins. Gap junction channels maintain intercellular communication between two cells through the exchange of ions, small metabolites, and electrical signals. Gap junction channels or connexins are widespread in terms of their expression and function in maintaining the development, differentiation, and homeostasis of vertebrate tissues. Gap junction connexins play a major role in maintaining intercellular communication among different cell types of normal mammary gland for proper development and homeostasis. Connexins have also been implicated in the pathogenesis of breast cancer. Differential expression pattern of connexins and their gap junction dependent or independent functions provide pivotal cross talk of breast tumor cells with the surrounding stromal cell in the microenvironment. Substantial research from the last 20 years has accumulated ample evidences that allow us a better understanding of the roles that connexins play in the tumorigenesis of primary breast tumor and its metastatic progression. This review will summarize the knowledge about the connexins and gap junction activities in breast cancer highlighting the differential expression and functional dynamics of connexins in the pathogenesis of the disease.
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18
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Liu CY, Wu PT, Wang JP, Fan PW, Hsieh CH, Su CL, Chiu CC, Yao CF, Fang K. An indolylquinoline derivative promotes apoptosis in human lung cancer cells by impairing mitochondrial functions. Apoptosis 2016; 20:1471-82. [PMID: 26349782 DOI: 10.1007/s10495-015-1165-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A number of effective anti-cancer drugs contain either indole or quinoline group. Compounds fused indole and quinoline moieties altogether as indolylquinoline were rarely reported as anti-cancer agents. We reported here that a synthetic indolylquinoline derivative, 3-((7-ethyl-1H-indol-3-yl)-methyl)-2-methylquinoline (EMMQ), inhibited the growth of human non-small cell lung cancer (NSCLC) cells in dose- and time-dependent manners. The cytotoxicity was mediated through apoptotic cell death that began with mitochondrial membrane potential interruption and DNA damage. EMMQ caused transient elevation of p53 that assists in cytochrome c release, cleavage of downstream PARP and procaspase-3 and mitochondria-related apoptosis. The degree of apoptotic cell death depends on the status of tumor suppressor p53 of the target cells. H1299 cells with stable ectopic expression of p53 induced cytotoxicity by disrupting mitochondria functions that differed with those transfected with mutant p53. Knocking-down of p53 attenuated drug effects. EMMQ suppressed the growth of A549 tumor cells in xenograft tumors by exhibiting apoptosis characteristics. Given its small molecular weight acting as an effective p53 regulator in NSCLC cells, EMMQ could be an addition to the current list of lung cancer treatment.
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Affiliation(s)
- Chun-Yen Liu
- Department of Life Science, National Taiwan Normal University, 88 Ting-Chow Rd, Sec 4, Taipei, 116, Taiwan
| | - Pei-Tsen Wu
- Department of Life Science, National Taiwan Normal University, 88 Ting-Chow Rd, Sec 4, Taipei, 116, Taiwan
| | - Jing-Ping Wang
- Department of Life Science, National Taiwan Normal University, 88 Ting-Chow Rd, Sec 4, Taipei, 116, Taiwan
| | - Po-Wei Fan
- Department of Life Science, National Taiwan Normal University, 88 Ting-Chow Rd, Sec 4, Taipei, 116, Taiwan
| | - Chang-Hung Hsieh
- Department of Life Science, National Taiwan Normal University, 88 Ting-Chow Rd, Sec 4, Taipei, 116, Taiwan
| | - Chun-Li Su
- Department of Human Development and Family Studies, National Taiwan Normal University, Taipei, Taiwan
| | - Chien-Chih Chiu
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ching-Fa Yao
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan
| | - Kang Fang
- Department of Life Science, National Taiwan Normal University, 88 Ting-Chow Rd, Sec 4, Taipei, 116, Taiwan.
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19
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Abstract
Many natural products that consist of quinoline core are found to be bioactive and the versatility of quinoline and its derivatives have attracted great attention in the field of drug development. As a result, in recent years, many green and sustainable synthetic approaches for the synthesis of structurally diverse quinolines have been developed. This review covers four main aspects, namely bioactive quinoline alkaloids, the biological activity and mechanism of action of quinoline-based compounds as well as various quinoline syntheses.
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20
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Connexin 43, breast cancer tumor suppressor: Missed connections? Cancer Lett 2016; 374:117-126. [DOI: 10.1016/j.canlet.2016.02.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 01/28/2016] [Accepted: 02/03/2016] [Indexed: 12/21/2022]
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21
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Nussinov R, Muratcioglu S, Tsai CJ, Jang H, Gursoy A, Keskin O. K-Ras4B/calmodulin/PI3Kα: A promising new adenocarcinoma-specific drug target? Expert Opin Ther Targets 2016; 20:831-42. [DOI: 10.1517/14728222.2016.1135131] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ruth Nussinov
- Cancer and Inflammation Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, National Cancer Institute at Frederick, Frederick, MD, USA
- Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Serena Muratcioglu
- Department of Chemical and Biological Engineering, Koc University, Istanbul, Turkey
| | - Chung-Jung Tsai
- Cancer and Inflammation Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, National Cancer Institute at Frederick, Frederick, MD, USA
| | - Hyunbum Jang
- Cancer and Inflammation Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, National Cancer Institute at Frederick, Frederick, MD, USA
| | - Attila Gursoy
- Department of Computer Engineering, Koc University, Istanbul, Turkey
| | - Ozlem Keskin
- Department of Chemical and Biological Engineering, Koc University, Istanbul, Turkey
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22
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Shishido SN, Nguyen TA. Induction of Apoptosis by PQ1, a Gap Junction Enhancer that Upregulates Connexin 43 and Activates the MAPK Signaling Pathway in Mammary Carcinoma Cells. Int J Mol Sci 2016; 17:ijms17020178. [PMID: 26840298 PMCID: PMC4783912 DOI: 10.3390/ijms17020178] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 12/07/2015] [Accepted: 01/22/2016] [Indexed: 11/24/2022] Open
Abstract
The mechanism of gap junction enhancer (PQ1) induced cytotoxicity is thought to be attributed to the change in connexin 43 (Cx43) expression; therefore, the effects of Cx43 modulation in cell survival were investigated in mammary carcinoma cells (FMC2u) derived from a malignant neoplasm of a female FVB/N-Tg(MMTV-PyVT)634Mul/J (PyVT) transgenic mouse. PQ1 was determined to have an IC50 of 6.5 µM in FMC2u cells, while inducing an upregulation in Cx43 expression. The effects of Cx43 modulation in FMC2u cell survival was determined through transfection experiments with Cx43 cDNA, which induced an elevated level of protein expression similar to that seen with PQ1 exposure, or siRNA to silence Cx43 protein expression. Overexpression or silencing of Cx43 led to a reduction or an increase in cell viability, respectively. The mitogen-activated protein kinase (MAPK) family has been implicated in the regulation of cell survival and cell death; therefore, the gap junctional intercellular communication (GJIC)-independent function of PQ1 and Cx43 in the Raf/Mitogen-activated protein kinase/ERK kinase/extracellular-signal-regulated kinase (Raf-MEK-ERK) cascade of cellular survival and p38 MAPK-dependent pathway of apoptosis were explored. PQ1 treatment activated p44/42 MAPK, while the overexpression of Cx43 resulted in a reduced expression. This suggests that PQ1 affects the Raf-MEK-ERK cascade independent of Cx43 upregulation. Both overexpression of Cx43 and PQ1 treatment stimulated an increase in the phosphorylated form of p38-MAPK, reduced levels of the anti-apoptotic protein Bcl-2, and increased the cleavage of pro-caspase-3. Silencing of Cx43 protein expression led to a reduction in the phosphorylation of p38-MAPK and an increase in Bcl-2 expression. The mechanism behind PQ1-induced cytotoxicity in FMC2u mammary carcinoma cells is thought to be attributed to the change in Cx43 expression. Furthermore, PQ1-induced apoptosis through the upregulation of Cx43 may depend on p38 MAPK, highlighting that the effect of PQ1 on gap junctions as well as cellular survival via a MAPK-dependent pathway.
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Affiliation(s)
- Stephanie N Shishido
- Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS 66506, USA.
| | - Thu A Nguyen
- Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS 66506, USA.
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23
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Li SY, Sun R, Wang HX, Shen S, Liu Y, Du XJ, Zhu YH, Jun W. Combination therapy with epigenetic-targeted and chemotherapeutic drugs delivered by nanoparticles to enhance the chemotherapy response and overcome resistance by breast cancer stem cells. J Control Release 2015; 205:7-14. [PMID: 25445694 DOI: 10.1016/j.jconrel.2014.11.011] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Revised: 10/28/2014] [Accepted: 11/09/2014] [Indexed: 12/17/2022]
Abstract
Aberrant DNA hypermethylation is critical in the regulation of renewal and maintenance of cancer stem cells (CSCs), which represent targets for carcinogenic initiation by chemical and environmental agents. The administration of decitabine (DAC), which is a DNA hypermethylation inhibitor, is an attractive approach to enhancing the chemotherapeutic response and overcoming drug resistance by CSCs. In this study, we investigated whether low-dose DAC encapsulated in nanoparticles could be used to sensitize bulk breast cancer cells and CSCs to chemotherapy. In vitro studies revealed that treatment with nanoparticles loaded with low-dose DAC (NPDAC) combined with nanoparticles loaded with doxorubicin (NPDOX) better reduced the proportion of CSCs with high aldehyde dehydrogenase activity (ALDH(hi)) in the mammospheres of MDA-MB-231 cells, and better overcame the drug resistance by ALDH(hi) cells. Subsequently, systemic delivery of NPDAC significantly down-regulated the expression of DNMT1 and DNMT3b in a MB-MDA-231 xenograft murine model and induced increased caspase-9 expression, which contributed to the increased sensitivity of the bulk cancer cells and CSCs to NPDOX treatment. Importantly, the combined treatment of NPDAC and NPDOX resulted in the lowest proportion of ALDH(hi) CSCs and the highest proportion of apoptotic tumor cells, and the best tumor suppressive effects in inhibiting breast cancer growth.
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MESH Headings
- Aldehyde Dehydrogenase/genetics
- Aldehyde Dehydrogenase/metabolism
- Animals
- Antineoplastic Combined Chemotherapy Protocols/administration & dosage
- Apoptosis/drug effects
- Azacitidine/administration & dosage
- Azacitidine/analogs & derivatives
- Azacitidine/chemistry
- Breast Neoplasms/drug therapy
- Breast Neoplasms/genetics
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Caspase 9/genetics
- Caspase 9/metabolism
- Cell Line, Tumor
- Chemistry, Pharmaceutical
- DNA (Cytosine-5-)-Methyltransferase 1
- DNA (Cytosine-5-)-Methyltransferases/genetics
- DNA (Cytosine-5-)-Methyltransferases/metabolism
- DNA Methylation/drug effects
- Decitabine
- Dose-Response Relationship, Drug
- Doxorubicin/administration & dosage
- Doxorubicin/chemistry
- Drug Carriers
- Drug Resistance, Neoplasm/drug effects
- Drug Resistance, Neoplasm/genetics
- Epigenesis, Genetic/drug effects
- Female
- Gene Expression Regulation, Neoplastic/drug effects
- Humans
- Mice, Inbred NOD
- Mice, SCID
- Nanomedicine
- Nanoparticles
- Neoplastic Stem Cells/drug effects
- Neoplastic Stem Cells/metabolism
- Neoplastic Stem Cells/pathology
- Polyesters/chemistry
- Polyethylene Glycols/chemistry
- Spheroids, Cellular
- Technology, Pharmaceutical/methods
- Time Factors
- Tumor Burden/drug effects
- Xenograft Model Antitumor Assays
- DNA Methyltransferase 3B
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Affiliation(s)
- Shi-Yong Li
- Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330000, PR China; The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, Anhui 230027, PR China
| | - Rong Sun
- The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, Anhui 230027, PR China
| | - Hong-Xia Wang
- The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, Anhui 230027, PR China
| | - Song Shen
- The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, Anhui 230027, PR China
| | - Yang Liu
- The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, Anhui 230027, PR China
| | - Xiao-Jiao Du
- The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, Anhui 230027, PR China
| | - Yan-Hua Zhu
- The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, Anhui 230027, PR China
| | - Wang Jun
- The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, Anhui 230027, PR China; Hefei National Laboratory for Physical Sciences at Microscale, Hefei, Anhui 230027, PR China; High Magnetic Field Laboratory of CAS, University of Science and Technology of China, Hefei, Anhui 230026, PR China.
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24
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Grek CL, Rhett JM, Bruce JS, Abt MA, Ghatnekar GS, Yeh ES. Targeting connexin 43 with α-connexin carboxyl-terminal (ACT1) peptide enhances the activity of the targeted inhibitors, tamoxifen and lapatinib, in breast cancer: clinical implication for ACT1. BMC Cancer 2015; 15:296. [PMID: 25881004 PMCID: PMC4407347 DOI: 10.1186/s12885-015-1229-6] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 03/19/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Treatment failure is a critical issue in breast cancer and identifying useful interventions that optimize current cancer therapies remains a critical unmet need. Expression and functional studies have identified connexins (Cxs), a family of gap junction proteins, as potential tumor suppressors. Studies suggest that Cx43 has a role in breast cancer cell proliferation, differentiation, and migration. Although pan-gap junction drugs are available, the lack of specificity of these agents increases the opportunity for off target effects. Consequently, a therapeutic agent that specifically modulates Cx43 would be beneficial and has not been tested in breast cancer. In this study, we now test an agent that specifically targets Cx43, called ACT1, in breast cancer. METHODS We evaluated whether direct modulation of Cx43 using a Cx43-directed therapeutic peptide, called ACT1, enhances Cx43 gap junctional activity in breast cancer cells, impairs breast cancer cell proliferation or survival, and enhances the activity of the targeted inhibitors tamoxifen and lapatinib. RESULTS Our results show that therapeutic modulation of Cx43 by ACT1 maintains Cx43 at gap junction sites between cell-cell membrane borders of breast cancer cells and augments gap junction activity in functional assays. The increase in Cx43 gap junctional activity achieved by ACT1 treatment impairs proliferation or survival of breast cancer cells but ACT1 has no effect on non-transformed MCF10A cells. Furthermore, treating ER+ breast cancer cells with a combination of ACT1 and tamoxifen or HER2+ breast cancer cells with ACT1 and lapatinib augments the activity of these targeted inhibitors. CONCLUSIONS Based on our findings, we conclude that modulation of Cx43 activity in breast cancer can be effectively achieved with the agent ACT1 to sustain Cx43-mediated gap junctional activity resulting in impaired malignant progression and enhanced activity of lapatinib and tamoxifen, implicating ACT1 as part of a combination regimen in breast cancer.
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Affiliation(s)
- Christina L Grek
- FirstString Research, Inc., 300 W. Coleman Blvd., Suite 203, Mount Pleasant, SC, USA.
| | - Joshua Matthew Rhett
- Department of Surgery, Division of General Surgery, Medical University of South Carolina, Charleston, SC, USA.
| | - Jaclynn S Bruce
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, 173 Ashley Ave, BSB358, MSC509, Charleston, SC, 29425, USA.
| | - Melissa A Abt
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, 173 Ashley Ave, BSB358, MSC509, Charleston, SC, 29425, USA.
| | - Gautam S Ghatnekar
- FirstString Research, Inc., 300 W. Coleman Blvd., Suite 203, Mount Pleasant, SC, USA.
| | - Elizabeth S Yeh
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, 173 Ashley Ave, BSB358, MSC509, Charleston, SC, 29425, USA.
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25
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Kandi SK, Manohar S, Vélez Gerena CE, Zayas B, Malhotra SV, Rawat DS. C5-curcuminoid-4-aminoquinoline based molecular hybrids: design, synthesis and mechanistic investigation of anticancer activity. NEW J CHEM 2015. [DOI: 10.1039/c4nj00936c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel hybrids exhibiting excellent anticancer activity against most of the NCI 60 cell lines through apoptotic pathways are reported herein.
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Affiliation(s)
| | - Sunny Manohar
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | | | - Beatriz Zayas
- School of Environmental Affairs
- Universidad Metropolitana
- San Juan
- USA
| | - Sanjay V. Malhotra
- Laboratory of Synthetic Chemistry
- Leidos Biomedical Research Inc
- Frederick National Laboratory for Cancer Research
- Frederick
- USA
| | - Diwan S. Rawat
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
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26
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Kumar S, Patel A, Ahmed N. Microwave-assisted expeditious and efficient synthesis of novel quinolin-4-ylmethoxychromen-2- and -4-ones catalyzed by YbCl3 under a solvent free one-pot three component domino reaction and their antimicrobial activity. RSC Adv 2015. [DOI: 10.1039/c5ra15748j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
MW assisted multicomponent A3 synthesis was developed for the synthesis of quinolin-4-ylmethoxychromen-2- and -4-ones in high yields with YbCl3 and reused efficiently for four times.
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Affiliation(s)
- Sumit Kumar
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee 247 667
- India
| | - Alok Patel
- Department of Biotechnology
- Indian Institute of Technology Roorkee
- Roorkee 247 667
- India
| | - Naseem Ahmed
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee 247 667
- India
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27
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Meyet CE, Larsen CH. One-Step Catalytic Synthesis of Alkyl-Substituted Quinolines. J Org Chem 2014; 79:9835-41. [DOI: 10.1021/jo5015883] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Courtney E. Meyet
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Catharine H. Larsen
- Department of Chemistry, University of California, Riverside, California 92521, United States
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28
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Bigelow K, Nguyen TA. Increase of gap junction activities in SW480 human colorectal cancer cells. BMC Cancer 2014; 14:502. [PMID: 25008544 PMCID: PMC4226976 DOI: 10.1186/1471-2407-14-502] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 06/30/2014] [Indexed: 01/05/2023] Open
Abstract
Background Colorectal cancer is one of the most common cancers in the United States with an early detection rate of only 39%. Colorectal cancer cells along with other cancer cells exhibit many deficiencies in cell-to-cell communication, particularly gap junctional intercellular communication (GJIC). GJIC has been reported to diminish as cancer cells progress. Gap junctions are intercellular channels composed of connexin proteins, which mediate the direct passage of small molecules from one cell to the next. They are involved in the regulation of the cell cycle, cell differentiation, and cell signaling. Since the regulation of gap junctions is lost in colorectal cancer cells, the goal of this study is to determine the effect of GJIC restoration in colorectal cancer cells. Methods Gap Junction Activity Assay and protein analysis were performed to evaluate the effects of overexpression of connexin 43 (Cx43) and treatment of PQ1, a small molecule, on GJIC. Results Overexpression of Cx43 in SW480 colorectal cancer cells causes a 6-fold increase of gap junction activity compared to control. This suggests that overexpressing Cx43 can restore GJIC. Furthermore, small molecule like PQ1 directly targeting gap junction channel was used to increase GJIC. Gap junction enhancers, PQ1, at 200 nM showed a 4-fold increase of gap junction activity in SW480 cells. A shift from the P0 to the P2 isoform of Cx43 was seen after 1 hour treatment with 200 nM PQ1. Conclusion Overexpression of Cx43 and treatment of PQ1 can directly increase gap junction activity. The findings provide an important implication in which restoration of gap junction activity can be targeted for drug development.
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Affiliation(s)
| | - Thu A Nguyen
- Department of Diagnostic Medicine/Pathobiology, Kansas State University, 1800 Denison Ave,, Manhattan, KS 66506, USA.
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