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Aleksandrova YI, Shurpik DN, Nazmutdinova VA, Zelenikhin PV, Subakaeva EV, Sokolova EA, Leonteva YO, Mironova AV, Kayumov AR, Petrovskii VS, Potemkin II, Stoikov II. Antibacterial Activity of Various Morphologies of Films Based on Guanidine Derivatives of Pillar[5]arene: Influence of the Nature of One Substitute on Self-assembly. ACS APPLIED MATERIALS & INTERFACES 2024; 16:17163-17181. [PMID: 38530408 DOI: 10.1021/acsami.3c18610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
The progress of the pillar[5]arene chemistry allowed us to set out a new concept on application of the supramolecular assemblies to create antimicrobial films with variable surface morphologies and biological activities. Antibacterial films were derived from the substituted pillar[5]arenes containing nine pharmacophoric guanidine fragments and one thioalkyl substituent. Changing the only thioalkyl fragment in the macrocycle structure made it possible to control the biological activity of the resulting antibacterial coating. Pretreatment of the surface with aqueous solution of the amphiphilic pillar[5]arenes reduced the biofilm thickness by 56 ± 10% of Gram-positive Staphylococcus aureus in the case of the pillar[5]arene containing a thiooctyl fragment and by 52 ± 7% for the biofilm of Gram-negative Klebsiella pneumoniae in the case of pillar[5]arene containing a thiooctadecyl fragment. Meanwhile, the cytotoxicity of the synthesized macrocycles was examined at a concentration of 50 μg/mL, which was significantly lower than that of bis-guanidine-based antimicrobial preparations.
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Affiliation(s)
- Yulia I Aleksandrova
- A. M. Butlerov Chemistry Institute, Kazan Federal University, 420008 Kremlevskaya Street, 18, Kazan, Russian Federation
| | - Dmitriy N Shurpik
- A. M. Butlerov Chemistry Institute, Kazan Federal University, 420008 Kremlevskaya Street, 18, Kazan, Russian Federation
| | - Viktoriya A Nazmutdinova
- A. M. Butlerov Chemistry Institute, Kazan Federal University, 420008 Kremlevskaya Street, 18, Kazan, Russian Federation
| | - Pavel V Zelenikhin
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kremlevskaya, 18, Kazan, Russian Federation
| | - Evgeniya V Subakaeva
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kremlevskaya, 18, Kazan, Russian Federation
| | - Evgeniya A Sokolova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kremlevskaya, 18, Kazan, Russian Federation
| | - Yulia O Leonteva
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kremlevskaya, 18, Kazan, Russian Federation
| | - Anna V Mironova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kremlevskaya, 18, Kazan, Russian Federation
| | - Airat R Kayumov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kremlevskaya, 18, Kazan, Russian Federation
| | - Vladislav S Petrovskii
- Physics Department, M. V. Lomonosov Moscow State University, Leninskie Gory 1-2, 119991 Moscow, Russian Federation
- N. N. Semenov Federal Research Center of Chemical Physics of Russian Academy of Sciences, Kosygina 4, 119991 Moscow, Russian Federation
| | - Igor I Potemkin
- Physics Department, M. V. Lomonosov Moscow State University, Leninskie Gory 1-2, 119991 Moscow, Russian Federation
| | - Ivan I Stoikov
- A. M. Butlerov Chemistry Institute, Kazan Federal University, 420008 Kremlevskaya Street, 18, Kazan, Russian Federation
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Talebipour A, Saviz M, Vafaiee M, Faraji-Dana R. Facilitating long-term cell examinations and time-lapse recordings in cell biology research with CO 2 mini-incubators. Sci Rep 2024; 14:3418. [PMID: 38341451 PMCID: PMC10858865 DOI: 10.1038/s41598-024-52866-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
In recent years, microscopy has revolutionized the study of dynamic living cells. However, performing long-term live cell imaging requires stable environmental conditions such as temperature, pH, and humidity. While standard incubators have traditionally provided these conditions, other solutions, like stagetop incubators are available. To further enhance the accessibility of stable cell culture environments for live cell imaging, we developed a portable CO2 cell culture mini-incubator that can be easily adapted to any x-y inverted microscope stage, enabling long-term live cell imaging. This mini-incubator provides and maintains stable environmental conditions and supports cell viability comparable to standard incubators. Moreover, it allows for parallel experiments in the same environment, saving both time and resources. To demonstrate its functionality, different cell lines (VERO and MDA-MB-231) were cultured and evaluated using various assays, including crystal violet staining, MTT, and flow cytometry tests to assess cell adhesion, viability, and apoptosis, respectively. Time-lapse imaging was performed over an 85-h period with MDA-MB-231 cells cultured in the mini-incubator. The results indicate that this device is a viable solution for long-term imaging and can be applied in developmental biology, cell biology, and cancer biology research where long-term time-lapse recording is required.
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Affiliation(s)
- Ali Talebipour
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Mehrdad Saviz
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
| | - Mohaddeseh Vafaiee
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, Iran
| | - Reza Faraji-Dana
- Center of Excellence on Applied Electromagnetic Systems, School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, Iran
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Abdelrahman KS, Hassan HA, Abdel-Aziz SA, Marzouk AA, Shams R, Osawa K, Abdel-Aziz M, Konno H. Development and Assessment of 1,5-Diarylpyrazole/Oxime Hybrids Targeting EGFR and JNK-2 as Antiproliferative Agents: A Comprehensive Study through Synthesis, Molecular Docking, and Evaluation. Molecules 2023; 28:6521. [PMID: 37764297 PMCID: PMC10537604 DOI: 10.3390/molecules28186521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
New 1,5-diarylpyrazole oxime hybrid derivatives (scaffolds A and B) were designed, synthesized, and then their purity was verified using a variety of spectroscopic methods. A panel of five cancer cell lines known to express EGFR and JNK-2, including human colorectal adenocarcinoma cell line DLD-1, human cervical cancer cell line Hela, human leukemia cell line K562, human pancreatic cell line SUIT-2, and human hepatocellular carcinoma cell line HepG2, were used to biologically evaluate for their in vitro cytotoxicity for all the synthesized compounds 7a-j, 8a-j, 9a-c, and 10a-c. The oxime containing compounds 8a-j and 10a-c were more active as antiproliferative agents than their non-oxime congeners 7a-j and 9a-c. Compounds 8d, 8g, 8i, and 10c inhibited EGFR with IC50 values ranging from 8 to 21 µM when compared with sorafenib. Compound 8i inhibited JNK-2 as effectively as sorafenib, with an IC50 of 1.0 µM. Furthermore, compound 8g showed cell cycle arrest at the G2/M phase in the cell cycle analysis of the Hela cell line, whereas compound 8i showed combined S phase and G2 phase arrest. According to docking studies, oxime hybrid compounds 8d, 8g, 8i, and 10c exhibited binding free energies ranging from -12.98 to 32.30 kcal/mol at the EGFR binding site whereas compounds 8d and 8i had binding free energies ranging from -9.16 to -12.00 kcal/mol at the JNK-2 binding site.
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Affiliation(s)
- Kamal S. Abdelrahman
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt; (S.A.A.-A.); (A.A.M.)
| | - Heba A. Hassan
- Department of Medicinal Chemistry Faculty of Pharmacy, Minia University, Minia 61519, Egypt; (H.A.H.); (M.A.-A.)
| | - Salah A. Abdel-Aziz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt; (S.A.A.-A.); (A.A.M.)
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Deraya University, Minia 61768, Egypt
| | - Adel A. Marzouk
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt; (S.A.A.-A.); (A.A.M.)
- National Center for Natural Products Research, School of Pharmacy, University of Missippi, Oxford, MS 38677, USA
| | - Raef Shams
- Emergent Bioengineering Materials Research Team, RIKEN Centre for Emergent Matter Science, RIKEN, Wako 351-0198, Saitama, Japan;
| | - Keima Osawa
- Graduate School of Science and Engineering, Yamagata University, Yonezawa 992-8510, Yamagata, Japan;
| | - Mohamed Abdel-Aziz
- Department of Medicinal Chemistry Faculty of Pharmacy, Minia University, Minia 61519, Egypt; (H.A.H.); (M.A.-A.)
| | - Hiroyuki Konno
- Graduate School of Science and Engineering, Yamagata University, Yonezawa 992-8510, Yamagata, Japan;
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AboulWafa OM, Daabees HMG, El-Said AH. Benzoxazole-appended piperidine derivatives as novel anticancer candidates against breast cancer. Bioorg Chem 2023; 134:106437. [PMID: 36842320 DOI: 10.1016/j.bioorg.2023.106437] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/02/2023] [Accepted: 02/15/2023] [Indexed: 02/23/2023]
Abstract
Novel series of benzoxazole-appended piperidine derivatives were planned, synthesized and screened against two breast cancer cell lines. Considerable antiproliferative activity was observed for screened compounds (IC50 = 33.32 ± 0.2 µM to 7.31 ± 0.43 µM and 1.66 ± 0.08 µM to 12.10 ± 0.57 µM) against MCF-7 and MDA-MB-231 cell lines respectively being more potent than doxorubicin (IC50 = 8.20 ± 0.39 µM and 13.34 ± 0.63 µM respectively). Active compounds were submitted for enzyme inhibition assays when 4d and 7h demonstrated potent EGFR inhibition (0.08 ± 0.002 µM and 0.09 ± 0.002 µM respectively) compared to erlotinib (0.11 ± 0.003 µM). However, no one compound displayed effective ARO inhibition activity as tested compounds were less active than letrozole. Apoptosis inducing ability results implied that apoptosis was provoked by significant stimulation of caspase-9 protein levels (4.25-7.04-fold) upon treatment of MCF-7 cells with 4a, 7h, 9, 12e and 12f. Alternatively, MDA-MB-231 cells treated with 4d, 7a, 12b and 12c considerably increased caspase-9 levels (2.32-4.06-fold). Cell cycle arrest and annexin-V/Propidium iodide assays further confirmed apoptosis when tested compounds arrested cell cycle at various phases and demonstrated high annexin V binding affinity. Docking outcomes proved valuable binding affinities for compounds 4d and 7h to EGFR enzyme while compounds 4a and 12e, upon docking into the active site of ARO, failed to interact with heme, suggesting their inabilities to act as AIs. Therefore, these benzoxazoles can act as promising candidates exhibiting EGFR inhibition and apoptosis-promoting properties.
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Affiliation(s)
- Omaima M AboulWafa
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt
| | - Hoda M G Daabees
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Damanhour, Damanhour, Egypt
| | - Ahmed H El-Said
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Delta University for Science and Technology, International Coastal Road, Gamasa City, Mansoura 11152, Dakahliya, Egypt.
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5
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Arnett LP, Rana R, Chung WWY, Li X, Abtahi M, Majonis D, Bassan J, Nitz M, Winnik MA. Reagents for Mass Cytometry. Chem Rev 2023; 123:1166-1205. [PMID: 36696538 DOI: 10.1021/acs.chemrev.2c00350] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Mass cytometry (cytometry by time-of-flight detection [CyTOF]) is a bioanalytical technique that enables the identification and quantification of diverse features of cellular systems with single-cell resolution. In suspension mass cytometry, cells are stained with stable heavy-atom isotope-tagged reagents, and then the cells are nebulized into an inductively coupled plasma time-of-flight mass spectrometry (ICP-TOF-MS) instrument. In imaging mass cytometry, a pulsed laser is used to ablate ca. 1 μm2 spots of a tissue section. The plume is then transferred to the CyTOF, generating an image of biomarker expression. Similar measurements are possible with multiplexed ion bean imaging (MIBI). The unit mass resolution of the ICP-TOF-MS detector allows for multiparametric analysis of (in principle) up to 130 different parameters. Currently available reagents, however, allow simultaneous measurement of up to 50 biomarkers. As new reagents are developed, the scope of information that can be obtained by mass cytometry continues to increase, particularly due to the development of new small molecule reagents which enable monitoring of active biochemistry at the cellular level. This review summarizes the history and current state of mass cytometry reagent development and elaborates on areas where there is a need for new reagents. Additionally, this review provides guidelines on how new reagents should be tested and how the data should be presented to make them most meaningful to the mass cytometry user community.
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Affiliation(s)
- Loryn P Arnett
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada
| | - Rahul Rana
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada
| | - Wilson Wai-Yip Chung
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada
| | - Xiaochong Li
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada
| | - Mahtab Abtahi
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada
| | - Daniel Majonis
- Standard BioTools Canada Inc. (formerly Fluidigm Canada Inc.), 1380 Rodick Road, Suite 400, Markham, OntarioL3R 4G5, Canada
| | - Jay Bassan
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada
| | - Mark Nitz
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada
| | - Mitchell A Winnik
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, OntarioM5S 3H6, Canada.,Department of Chemical Engineering and Applied Chemistry, 200 College Street, Toronto, OntarioM5S 3E5, Canada
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Sobh EA, Khalil NA, Faggal SI, Hassan MSA. New benzothienopyrimidine derivatives as dual EGFR/ARO inhibitors: Design, synthesis, and their cytotoxic effect on MCF-7 breast cancer cell line. Drug Dev Res 2022; 83:1075-1096. [PMID: 35286757 DOI: 10.1002/ddr.21934] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 02/12/2022] [Accepted: 02/24/2022] [Indexed: 11/09/2022]
Abstract
New cytotoxic agents based on benzothienopyrimidine scaffold were designed, synthesized, and evaluated against the MCF-7 breast cancer line in comparison to erlotinib and letrozole as reference drugs. Eight compounds demonstrated up to 20-fold higher anticancer activity than erlotinib, and five of these compounds were up to 11-fold more potent than letrozole in MTT assay. The most promising compounds were evaluated for their inhibitory activity against EGFR and ARO enzymes. Compound 12, which demonstrated potent dual EGFR and ARO inhibitory activity with IC50 of 0.045 and 0.146 µM, respectively, was further evaluated for caspase-9 activation, cell cycle analysis, and apoptosis. The results revealed that the tested compound 12 remarkably induced caspase-9 activation (IC50 = 16.29 ng/ml) caused cell cycle arrest at the pre-G1 /G1 phase and significantly increased the concentration of cells at both early and late stage of apoptosis. In addition, it showed a higher safety profile on normal MCF-10A cells, and higher antiproliferative activity on cancer cells (IC50 = 8.15 µM) in comparison to normal cells (IC50 = 41.20 µM). It also revealed a fivefold higher selectivity index than erlotinib towards MCF-7 cancer cells. Docking studies were performed to rationalize the dual inhibitory activity of compound 12.
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Affiliation(s)
- Eman A Sobh
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Menoufia University, Menoufia, Egypt
| | - Nadia A Khalil
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Samar I Faggal
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Marwa S A Hassan
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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Farghaly AM, AboulWafa OM, Baghdadi HH, Abd El Razik HA, Sedra SMY, Shamaa MM. New thieno[3,2-d]pyrimidine-based derivatives: Design, synthesis and biological evaluation as antiproliferative agents, EGFR and ARO inhibitors inducing apoptosis in breast cancer cells. Bioorg Chem 2021; 115:105208. [PMID: 34365057 DOI: 10.1016/j.bioorg.2021.105208] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 06/02/2021] [Accepted: 07/21/2021] [Indexed: 01/28/2023]
Abstract
An array of newly synthesized thieno[3,2-d]pyrimidine-based derivatives and thienotriazolopyrimidines hybridized with some pharmacophoric anticancer fragments were designed, synthesized and assessed for their in vitro antiproliferative activity against MCF-7 and MDA-MB-231 breast cancer cell lines using erlotinib and pictilisib as reference standards in the MTT assay. In general, many compounds were endowed with considerable antiproliferative activity (IC50 = 0.43-1.31 µM). Some of the tested compounds, namely 3c, 5b, 5c, 9d, 10, 11b and 13 displayed remarkable antiproliferative activity against both cell lines. Meanwhile, compounds 2c-e, 3b, 4a, 5a, 9c and 15b showed noticeable selectivity against MCF-7 cells while compounds 2b, 3a, 4b, 6a-c, 7, 8, 9b and 12 exhibited considerable selectivity against MDA-MB-231 cells. Further mechanistic evidences for their anticancer activities were provided by screening the most potent compounds against MCF-7 and/or MDA-MB-231 cells for EGFR and ARO inhibitory activities using erlotinib and letrozole as reference standards respectively. Results proved that, in general, tested compounds were better EGFRIs than ARIs. In addition, significant overexpression in caspase-9 level in treated MCF-7 breast cell line samples was observed for all tested compounds with the 4-fluorophenylhydrazone derivative 2d exhibiting the highest activation. In treated MDA-MB-231 breast cell line samples, 11b was found to highly induce caspase-9 level thereby inducing apoptosis. Cell cycle analysis and Annexin V-FITC/PI assay were also assessed for active compounds where results indicated that all tested compounds induced preG1 apoptosis and cell cycle arrest at G2/M phase. Compound 9d, as an inhibitor of ARO, was observed to downregulate the downstream signaling proteins HSP27 and p-ERK in MCF-7 cells. Furthermore, compound 11b downregulated EGFR expression as well as the downstream signaling protein p-AKT. Docking experiments on EGFR and ARO enzymes supported their in vitro results. Thus, the thienotriazolopyrimidines 11b and 12 showing good EGFR inhibition and the thieno[3,2-d]-pyrimidine derivatives 3b and 9d, eliciting the best ARO inhibition activity, can be considered as new candidates as anti-breast cancer agents that necessitate further development.
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Affiliation(s)
- Ahmed M Farghaly
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt
| | - Omaima M AboulWafa
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt
| | - Hoda H Baghdadi
- Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt
| | - Heba A Abd El Razik
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, 21521 Alexandria, Egypt.
| | - Samir M Y Sedra
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Pharos University in Alexandria, Alexandria, Egypt
| | - Marium M Shamaa
- Clinical and Biological Sciences (Biochemistry and Molecular Biology) Department, College of Pharmacy, Arab Academy for Science, Technology and Maritime Transport, Alexandria, Egypt
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D’Onofrio N, Mele L, Martino E, Salzano A, Restucci B, Cautela D, Tatullo M, Balestrieri ML, Campanile G. Synergistic Effect of Dietary Betaines on SIRT1-Mediated Apoptosis in Human Oral Squamous Cell Carcinoma Cal 27. Cancers (Basel) 2020; 12:cancers12092468. [PMID: 32878301 PMCID: PMC7563158 DOI: 10.3390/cancers12092468] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 12/24/2022] Open
Abstract
Simple Summary Betaines are important human nutrients widely distributed in plants, animals, and dietary sources. δ-valerobetaine (δVB) is a naturally occurring betaine with antioxidant, anti-inflammatory and anticancer activities. The aim of our study was to investigate the possible synergism between δVB and the structurally related γ-butyrobetaine (γBB) by testing the in vitro anticancer activity in head and neck squamous cell carcinomas. Combined δVB and γBB caused a marked inhibition of cell proliferation and induction of apoptosis in Cal 27 cells. The increased reactive oxygen species accumulation influenced the nuclear expression of SIRT1. Gene silencing with small interfering RNA confirmed the role of SIRT1 in the apoptotic cell death. Synergism of δVB and γBB is useful for novel strategies to optimize their content in meat, milk and dairy products to sustain human health and wellbeing. Abstract Betaines are food components widely distributed in plants, animals, microorganisms, and dietary sources. Among betaines, δ-valerobetaine (N,N,N-trimethyl-5-aminovaleric acid, δVB) shares a metabolic pathway common to γ-butyrobetaine (γBB). The biological properties of δVB are particularly attractive, as it possesses antioxidant, anti-inflammatory and anticancer activities. Here, we investigated the possible synergism between δVB and the structurally related γBB, to date unexplored, by testing the in vitro anticancer activity in head and neck squamous cell carcinoma cell lines, FaDu, UM-SCC-17A and Cal 27. Among cell lines tested, results indicated that betaines showed the highest effect in reducing Cal 27 cell proliferation up to 72 h (p < 0.01). This effect was enhanced when betaines were administered in combination (δVB plus γBB) (p < 0.001). Inhibition of cell growth by δVB plus γBB involved reactive oxygen species (ROS) accumulation, upregulation of sirtuin 1 (SIRT1), and apoptosis (p < 0.001). SIRT1 gene silencing by small interfering RNA decreased the apoptotic effect of δVB plus γBB by modulating downstream procaspase-3 and cyclin B1 (p < 0.05). These findings might have important implications for novel prevention strategies for tongue squamous cell carcinoma by targeting SIRT1 with naturally occurring betaines.
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Affiliation(s)
- Nunzia D’Onofrio
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Via L. De Crecchio 7, 80138 Naples, Italy; (N.D.); (E.M.)
| | - Luigi Mele
- Department of Experimental Medicine, University of Campania Luigi Vanvitelli, Via Luciano Armanni 5, 80138 Naples, Italy;
| | - Elisa Martino
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Via L. De Crecchio 7, 80138 Naples, Italy; (N.D.); (E.M.)
| | - Angela Salzano
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Via F. Delpino 1, 80137 Naples, Italy; (A.S.); (B.R.); (G.C.)
| | - Brunella Restucci
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Via F. Delpino 1, 80137 Naples, Italy; (A.S.); (B.R.); (G.C.)
| | - Domenico Cautela
- Experimental Station for the Industry of the Essential Oils and Citrus Products (SSEA), Special Agency of the Chamber of Commerce in Reggio Calabria, Via G. Tommasini 2, 89125 Reggio Calabria, Italy;
| | - Marco Tatullo
- Marrelli Health—Tecnologica Research Institute, Biomedical Section, Via E. Fermi, 88900 Crotone, Italy;
| | - Maria Luisa Balestrieri
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Via L. De Crecchio 7, 80138 Naples, Italy; (N.D.); (E.M.)
- Correspondence: ; Tel.: +39-081-566-5865; Fax: +39-081-566-5863
| | - Giuseppe Campanile
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Via F. Delpino 1, 80137 Naples, Italy; (A.S.); (B.R.); (G.C.)
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Kholodnyuk I, Rivkina A, Hippe L, Svirskis S, Kozireva S, Ventina I, Spaka I, Soloveichika M, Pavlova J, Murovska M, Lejniece S. Chemokine Receptors CCR1 and CCR2 on Peripheral Blood Mononuclear Cells of Newly Diagnosed Patients with the CD38-Positive Chronic Lymphocytic Leukemia. J Clin Med 2020; 9:E2312. [PMID: 32708233 PMCID: PMC7408836 DOI: 10.3390/jcm9072312] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/08/2020] [Accepted: 07/17/2020] [Indexed: 01/29/2023] Open
Abstract
Chemokines and their receptors direct migration and infiltration of immune cells. CCR1 and CCR2 maintain sequence similarity and respond to a number of the same chemokines secreted in lymphoid organs. Expression of CD38 on leukemic cells has been associated with poor clinical outcomes in patients with chronic lymphocytic leukemia (CLL) and is considered as the negative predictor of progression. In our study of newly diagnosed CLL patients, which included 39 CD38-positive and 22 CD38-negative patients, CCR1 and/or CCR2 were always detected, using flow cytometry, on the peripheral blood (PB) CD19+CD5+ lymphocytes in patients with >30% of the CD38+ CD19+CD5+ lymphocytes (n = 16). Spearman's rank correlation analysis determined correlations between the frequency of the CCR1- and CCR2-expressing PB CD19+CD5+ lymphocytes and the frequency of the CD38-positive CD19+CD5+ lymphocytes (rs = 0.50 and rs = 0.38, respectively). No significant correlations were observed between ZAP70 mRNA expression levels in PB mononuclear cells and the frequency of the circulating CCR1+ or CCR2+ CD19+CD5+ lymphocytes. Further association studies are needed to verify prognostic relevance of the CCR1/CCR2 expression on leukemic cells in CLL patients at diagnosis. We suggest that CCR1/CCR2 signaling pathways could represent attractive targets for development of CLL anti-progression therapeutics.
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Affiliation(s)
- Irina Kholodnyuk
- Institute of Microbiology and Virology, Riga Stradins University, Riga LV-1067, Latvia; (L.H.); (S.S.); (S.K.); (I.V.); (I.S.); (J.P.); (M.M.)
| | - Alla Rivkina
- Department of Internal Diseases, Riga Stradins University, Riga LV-1038, Latvia; (A.R.); (S.L.)
- Riga East University Hospital, Clinic of Chemotherapy and Hematology, Riga LV-1038, Latvia;
| | - Laura Hippe
- Institute of Microbiology and Virology, Riga Stradins University, Riga LV-1067, Latvia; (L.H.); (S.S.); (S.K.); (I.V.); (I.S.); (J.P.); (M.M.)
| | - Simons Svirskis
- Institute of Microbiology and Virology, Riga Stradins University, Riga LV-1067, Latvia; (L.H.); (S.S.); (S.K.); (I.V.); (I.S.); (J.P.); (M.M.)
| | - Svetlana Kozireva
- Institute of Microbiology and Virology, Riga Stradins University, Riga LV-1067, Latvia; (L.H.); (S.S.); (S.K.); (I.V.); (I.S.); (J.P.); (M.M.)
| | - Ildze Ventina
- Institute of Microbiology and Virology, Riga Stradins University, Riga LV-1067, Latvia; (L.H.); (S.S.); (S.K.); (I.V.); (I.S.); (J.P.); (M.M.)
| | - Irina Spaka
- Institute of Microbiology and Virology, Riga Stradins University, Riga LV-1067, Latvia; (L.H.); (S.S.); (S.K.); (I.V.); (I.S.); (J.P.); (M.M.)
| | - Marina Soloveichika
- Riga East University Hospital, Clinic of Chemotherapy and Hematology, Riga LV-1038, Latvia;
| | - Jelena Pavlova
- Institute of Microbiology and Virology, Riga Stradins University, Riga LV-1067, Latvia; (L.H.); (S.S.); (S.K.); (I.V.); (I.S.); (J.P.); (M.M.)
| | - Modra Murovska
- Institute of Microbiology and Virology, Riga Stradins University, Riga LV-1067, Latvia; (L.H.); (S.S.); (S.K.); (I.V.); (I.S.); (J.P.); (M.M.)
| | - Sandra Lejniece
- Department of Internal Diseases, Riga Stradins University, Riga LV-1038, Latvia; (A.R.); (S.L.)
- Riga East University Hospital, Clinic of Chemotherapy and Hematology, Riga LV-1038, Latvia;
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Park EY, Kim JI, Leem DG, Shin JS, Kim KT, Choi SY, Lee MH, Choi JH, Lee YS, Lee KT. Resveratrol analogue (E)-8-acetoxy-2-[2-(3,4-diacetoxyphenyl)ethenyl]-quinazoline induces apoptosis via Fas-mediated pathway in HL-60 human leukemia cells. Oncol Rep 2016; 36:3577-3587. [PMID: 27748905 DOI: 10.3892/or.2016.5168] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 10/03/2016] [Indexed: 11/05/2022] Open
Abstract
Previously, we reported that (E)-8-acetoxy-2-[2-(3,4-diacetoxyphenyl)ethenyl]-quinazoline (8-ADEQ), a synthetic analogue of resveratrol had anti-inflammatory and G2/M cell cycle arrest activities, but the underlying molecular mechanism of cytotoxic effects of this compound was not determined. In this study, 8-ADEQ displayed potent cytotoxicity and triggered apoptosis in HL-60 cells as evidenced by DNA fragmentation, DNA ladder formation, and the externalization of Annexin V-targeted phosphatidylserine residues in HL-60 cells. In addition, 8-ADEQ triggered activation of caspases-8, -9, -6 and -3 and cleavage of their substrates such as poly(ADP-ribose) polymerase (PARP). Moreover, 8-ADEQ induced loss of mitochondrial membrane potential (MMP) and release of cytochrome c to the cytosol. Caspase-3 inhibitor (z-DEVD-fmk), caspase-8 inhibitor (z-IETD-fmk), caspase-9 inhibitor (z-LEHD), and broad caspase inhibitor (z-VAD‑fmk) significantly suppressed the 8-ADEQ-induced DNA fragmentation. Interestingly, pretreatment with z-IETD-fmk, a caspase-8 inhibitor, completely abolished 8-ADEQ-induced caspase-3 and -9 activation, and subsequent DNA fragmentation. 8-ADEQ also increased the expression of Fas, Fas-associated death domain (FADD) and FasL, and formation of death-inducing signaling complex (DISC). Further analysis revealed that 8-ADEQ-induced apoptosis was mediated by upregulation of reactive oxidative species (ROS) generation. Taken together, our data indicated that 8-ADEQ-stimulated apoptosis in HL-60 leukemia cells is due to a Fas-mediated caspase-8-dependent pathway via ROS generation, but also, to a lesser extent cytochrome c release and caspase-9 activation.
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Affiliation(s)
- Eun Young Park
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Joo-Il Kim
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Dong-Gyu Leem
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Ji-Sun Shin
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Kyung-Tack Kim
- Traditional Food Research Center, Korea Food Research Institute, Seongnam 13539, Republic of Korea
| | - Sang Yoon Choi
- Traditional Food Research Center, Korea Food Research Institute, Seongnam 13539, Republic of Korea
| | - Myung-Hee Lee
- Traditional Food Research Center, Korea Food Research Institute, Seongnam 13539, Republic of Korea
| | - Jung-Hye Choi
- Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Yong Sup Lee
- Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Kyung-Tae Lee
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul 130-701, Republic of Korea
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11
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Vascular Endothelial Cell Growth Factor A Acts via Platelet-Derived Growth Factor Receptor α To Promote Viability of Cells Enduring Hypoxia. Mol Cell Biol 2016; 36:2314-27. [PMID: 27325673 DOI: 10.1128/mcb.01019-15] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 06/07/2016] [Indexed: 12/20/2022] Open
Abstract
Vascular endothelial cell growth factor A (VEGF) is a biologically and therapeutically important growth factor because it promotes angiogenesis in response to hypoxia, which underlies a wide variety of both physiological and pathological settings. We report here that both VEGF receptor 2 (VEGFR2)-positive and -negative cells depended on VEGF to endure hypoxia. VEGF enhanced the viability of platelet-derived growth factor receptor α (PDGFRα)-positive and VEGFR2-negative cells by enabling indirect activation of PDGFRα, thereby reducing the level of p53. We conclude that the breadth of VEGF's influence extends beyond VEGFR-positive cells and propose a plausible mechanistic explanation of this phenomenon.
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12
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Characterization of adipose-derived stem cells of anatomical region from mice. BMC Res Notes 2014; 7:552. [PMID: 25138545 PMCID: PMC4156637 DOI: 10.1186/1756-0500-7-552] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 08/14/2014] [Indexed: 01/01/2023] Open
Abstract
Background Stem cells constitute a group of great capacity for self-renewal, long-term viability, and multi-lineage potential. Several studies have provided evidence that adipose tissue represents an alternative source of stem cells, with the main benefit of adipose-derived stem cells being that they can be easily harvested from patients by a simple minimally invasive method and can be easily cultured. The aim of this study was to establish a culture protocol for obtaining and characterizing adipose-derived stem cells (ADSCs) from C57BL/6 J mice. Results The results showed that the yield, viability, and cell morphology obtained differ according to the age of isolated anatomic regions of the adipose tissue from ovarian and epididymis. The results of determination of cyclin D1 showed uniformity in the expression between different populations of ADSCs. A significant increase in the expression of caspase-3 active, was also observed in large cell populations from mice after 120 days. ADSCs were positive for mesenchymal markers CD90 and CD105, Nanog, SSEA-1, CD106, and VEGFR-1, and negative for hematopoietic markers CD34 and CD45. A large number of cells in S + G2/M phases was also observed for both sexes, demonstrating high proliferative capacity of ADSCs. Conclusions We observed that the adipose tissue of C57BL/6 J mice, isolated from the studied anatomic regions, is a promising source for obtaining pluripotent mesenchymal stem cells with high viability and proliferative response.
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Yeh CN, Yen CC, Chen YY, Cheng CT, Huang SC, Chang TW, Yao FY, Lin YC, Wen YS, Chiang KC, Chen JS, Yeh TS, Tzeng CH, Chao TC, Fletcher JA. Identification of aurora kinase A as an unfavorable prognostic factor and potential treatment target for metastatic gastrointestinal stromal tumors. Oncotarget 2014; 5:4071-86. [PMID: 24901229 PMCID: PMC4147307 DOI: 10.18632/oncotarget.1705] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Accepted: 05/20/2014] [Indexed: 02/06/2023] Open
Abstract
Although imatinib mesylate (IM) has revolutionized the management of gastrointestinal stromal tumors (GISTs), drug resistance remains a challenge. Previous studies have shown that the expression of aurora kinase A (AURKA) predicts recurrence in patients with primary, surgically resected GISTs. The current study aimed to evaluate the significance of AURKA expression as an unfavorable prognostic marker for advanced GISTs, and provide evidence that AURKA could be a potential therapeutic target in GISTs. The prognostic significance of the expression of AURKA, along with other clinicopathological factors, was analyzed in a cohort of 99 IM-treated patients with advanced GISTs. The potential use of an inhibitor of AURKA as a therapeutic agent against GISTs was also tested in GIST cell lines. Among 99 enrolled patients, poor performance status, large tumor size, drug response, and AURKA overexpression were independent prognostic factors for poor progression-free survival (PFS). For overall survival (OS), only large tumor size and AURKA overexpression were identified as independent unfavorable factors. In an in vitro study, MLN8237, an AURKA inhibitor, inhibited growth of both IM-sensitive and IM-resistant GIST cells in a concentration-dependent manner, and exhibited synergistic cytotoxicity with IM in GIST cells. The inhibitory effect of MLN8237 in GIST cells could be attributed to the induction of G2/M arrest, apoptosis, and senescence. Our study shows that AURKA expression independently predicted poor PFS and OS in patients with advanced GISTs who were treated with IM. An AURKA inhibitor may have potential as a therapeutic agent for both IM-sensitive and IM-resistant GISTs.
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Affiliation(s)
- Chun-Nan Yeh
- Department of Surgery, Lin-Kou Medical Center, Chang Gung Memorial Hospital and University, Gueishan Township, Taoyuan County, Taiwan
| | - Chueh-Chuan Yen
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Therapeutical and Research Center of Musculoskeletal Tumor, Taipei Veterans General Hospital, Taipei, Taiwan
- National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Yen-Yang Chen
- Division of Hematology-Oncology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chi-Tung Cheng
- Department of Surgery, Lin-Kou Medical Center, Chang Gung Memorial Hospital and University, Gueishan Township, Taoyuan County, Taiwan
| | - Shih-Chiang Huang
- Department of Pathology, Lin-Kou Medical Center, Chang Gung Memorial Hospital and University, Gueishan Township, Taoyuan County, Taiwan
| | - Ting-Wei Chang
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Fang-Yi Yao
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yung-Chan Lin
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yao-Shan Wen
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Kun-Chun Chiang
- Department of Surgery, Keelung Medical Center, Chang Gung Memorial Hospital and University, Keelung, Taiwan
| | - Jen-Shi Chen
- Department of Medical Oncology, Lin-Kou Medical Center, Chang Gung Memorial Hospital and University, Gueishan Township, Taoyuan County, Taiwan
| | - Ta-Sen Yeh
- Department of Surgery, Lin-Kou Medical Center, Chang Gung Memorial Hospital and University, Gueishan Township, Taoyuan County, Taiwan
| | - Cheng-Hwai Tzeng
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Ta-Chung Chao
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Therapeutical and Research Center of Musculoskeletal Tumor, Taipei Veterans General Hospital, Taipei, Taiwan
- National Yang-Ming University School of Medicine, Taipei, Taiwan
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Wang L, Xiang S, Williams KA, Dong H, Bai W, Nicosia SV, Khochbin S, Bepler G, Zhang X. Depletion of HDAC6 enhances cisplatin-induced DNA damage and apoptosis in non-small cell lung cancer cells. PLoS One 2012; 7:e44265. [PMID: 22957056 PMCID: PMC3434198 DOI: 10.1371/journal.pone.0044265] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Accepted: 07/31/2012] [Indexed: 11/18/2022] Open
Abstract
Histone deacetylase inhibitors (HDACi) are promising therapeutic agents which are currently used in combination with chemotherapeutic agents in clinical trials for cancer treatment including non-small cell lung cancer (NSCLC). However, the mechanisms underlying their anti-tumor activities remain elusive. Previous studies showed that inhibition of HDAC6 induces DNA damage and sensitizes transformed cells to anti-tumor agents such as etoposide and doxorubicin. Here, we showed that depletion of HDAC6 in two NSCLC cell lines, H292 and A549, sensitized cells to cisplatin, one of the first-line chemotherapeutic agents used to treat NSCLC. We suggested that depletion of HDAC6 increased cisplatin-induced cytotoxicity was due to the enhancement of apoptosis via activating ATR/Chk1 pathway. Furthermore, we showed that HDAC6 protein levels were positively correlated with cisplatin IC(50) in 15 NSCLC cell lines. Lastly, depletion of HDAC6 in H292 xenografts rendered decreased tumor weight and volume and exhibited increased basal apoptosis compared with the controls in a xenograft mouse model. In summary, our findings suggest that HDAC6 is positively associated with cisplatin resistance in NSCLC and reveal HDAC6 as a potential novel therapeutic target for platinum refractory NSCLC.
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Affiliation(s)
- Lei Wang
- Department of Pathology and Cell Biology, University of South Florida, Morsani College of Medicine, Tampa, Florida, United States of America
| | - Shengyan Xiang
- Department of Pathology and Cell Biology, University of South Florida, Morsani College of Medicine, Tampa, Florida, United States of America
| | - Kendra A. Williams
- Department of Pathology and Cell Biology, University of South Florida, Morsani College of Medicine, Tampa, Florida, United States of America
| | - Huiqin Dong
- Department of Pathology and Cell Biology, University of South Florida, Morsani College of Medicine, Tampa, Florida, United States of America
| | - Wenlong Bai
- Department of Pathology and Cell Biology, University of South Florida, Morsani College of Medicine, Tampa, Florida, United States of America
- Program of Molecular Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, United States of America
| | - Santo V. Nicosia
- Department of Pathology and Cell Biology, University of South Florida, Morsani College of Medicine, Tampa, Florida, United States of America
- Experimental Therapeutics, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, United States of America
| | - Saadi Khochbin
- French National Institute of Health and Medical Research, The Albert Bonniot Institute, Grenoble, France
| | - Gerold Bepler
- Department of Oncology, Karmanos Cancer Institute, Detroit, Michigan, United States of America
- * E-mail: (GB); (XZ)
| | - Xiaohong Zhang
- Department of Pathology and Cell Biology, University of South Florida, Morsani College of Medicine, Tampa, Florida, United States of America
- Program of Molecular Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, United States of America
- * E-mail: (GB); (XZ)
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15
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Davidson B, Dong HP, Berner A, Risberg B. The diagnostic and research applications of flow cytometry in cytopathology. Diagn Cytopathol 2012; 40:525-35. [DOI: 10.1002/dc.22809] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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16
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Dong HP, Holth A, Ruud MG, Emilsen E, Risberg B, Davidson B. Measurement of apoptosis in cytological specimens by flow cytometry: comparison of Annexin V, caspase cleavage and dUTP incorporation assays. Cytopathology 2010; 22:365-72. [DOI: 10.1111/j.1365-2303.2010.00811.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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17
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Godal R, Bachanova V, Gleason M, McCullar V, Yun GH, Cooley S, Verneris MR, McGlave PB, Miller JS. Natural killer cell killing of acute myelogenous leukemia and acute lymphoblastic leukemia blasts by killer cell immunoglobulin-like receptor-negative natural killer cells after NKG2A and LIR-1 blockade. Biol Blood Marrow Transplant 2010; 16:612-21. [PMID: 20139023 DOI: 10.1016/j.bbmt.2010.01.019] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2009] [Accepted: 01/29/2010] [Indexed: 11/19/2022]
Abstract
Although the study of natural killer (NK) cell alloreactivity has been dominated by studies of killer cell immunoglobulin-like receptors (KIRs), we hypothesized that NKG2A and LIR-1, present on 53% +/- 13% and 36% +/- 18% of normal NK cells, respectively, play roles in the NK cell killing of primary leukemia targets. KIR(-) cells, which compose nearly half of the circulating NK cell population, exhibit tolerance to primary leukemia targets, suggesting signaling through other inhibitory receptors. Both acute myelogenous leukemia and acute lymphoblastic leukemia targets were rendered susceptible to lysis by fresh resting KIR(-) NK cells when inhibitory receptor-major histocompatibility class I interactions were blocked by pan-HLA antibodies, demonstrating that these cells are functionally competent. Blockade of a single inhibitory receptor resulted in slightly increased killing, whereas combined LIR-1 and NKG2A blockade consistently resulted in increased NK cell cytotoxicity. Dual blockade of NKG2A and LIR-1 led to significant killing of targets by resting KIR(-) NK cells, demonstrating that this population is not hyporesponsive. Together these results suggest that alloreactivity of a significant fraction of KIR(-) NK cells is mediated by NKG2A and LIR-1. Thus strategies to interrupt NKG2A and LIR-1 in combination with anti-KIR blockade hold promise for exploiting NK cell therapy in acute leukemias.
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MESH Headings
- Antibodies/pharmacology
- Antigens, CD/immunology
- Blast Crisis/immunology
- Blast Crisis/pathology
- Cells, Cultured
- Cytotoxicity, Immunologic/immunology
- Histocompatibility Antigens Class I
- Humans
- Killer Cells, Natural/immunology
- Leukemia, Myeloid, Acute/immunology
- Leukemia, Myeloid, Acute/pathology
- Leukocyte Immunoglobulin-like Receptor B1
- NK Cell Lectin-Like Receptor Subfamily C/antagonists & inhibitors
- NK Cell Lectin-Like Receptor Subfamily C/immunology
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/immunology
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/pathology
- Receptors, Immunologic/antagonists & inhibitors
- Receptors, Immunologic/immunology
- Receptors, KIR
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Affiliation(s)
- Robert Godal
- Division of Adult Hematology, Oncology and Transplantation, Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, Minnesota, USA
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18
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van der Most RG, Currie AJ, Cleaver AL, Salmons J, Nowak AK, Mahendran S, Larma I, Prosser A, Robinson BWS, Smyth MJ, Scalzo AA, Degli-Esposti MA, Lake RA. Cyclophosphamide chemotherapy sensitizes tumor cells to TRAIL-dependent CD8 T cell-mediated immune attack resulting in suppression of tumor growth. PLoS One 2009; 4:e6982. [PMID: 19746156 PMCID: PMC2734989 DOI: 10.1371/journal.pone.0006982] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2009] [Accepted: 08/19/2009] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Anti-cancer chemotherapy can be simultaneously lymphodepleting and immunostimulatory. Pre-clinical models clearly demonstrate that chemotherapy can synergize with immunotherapy, raising the question how the immune system can be mobilized to generate anti-tumor immune responses in the context of chemotherapy. METHODS AND FINDINGS We used a mouse model of malignant mesothelioma, AB1-HA, to investigate T cell-dependent tumor resolution after chemotherapy. Established AB1-HA tumors were cured by a single dose of cyclophosphamide in a CD8 T cell- and NK cell-dependent manner. This treatment was associated with an IFN-alpha/beta response and a profound negative impact on the anti-tumor and total CD8 T cell responses. Despite this negative effect, CD8 T cells were essential for curative responses. The important effector molecules used by the anti-tumor immune response included IFN-gamma and TRAIL. The importance of TRAIL was supported by experiments in nude mice where the lack of functional T cells could be compensated by agonistic anti-TRAIL-receptor (DR5) antibodies. CONCLUSION The data support a model in which chemotherapy sensitizes tumor cells for T cell-, and possibly NK cell-, mediated apoptosis. A key role of tumor cell sensitization to immune attack is supported by the role of TRAIL in tumor resolution and explains the paradox of successful CD8 T cell-dependent anti-tumor responses in the absence of CD8 T cell expansion.
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Affiliation(s)
- Robbert G. van der Most
- National Research Centre for Asbestos Related Diseases, University of Western Australia, Perth, Australia
- * E-mail: (RGvdM); (RAL)
| | - Andrew J. Currie
- National Research Centre for Asbestos Related Diseases, University of Western Australia, Perth, Australia
| | - Amanda L. Cleaver
- National Research Centre for Asbestos Related Diseases, University of Western Australia, Perth, Australia
| | - Joanne Salmons
- National Research Centre for Asbestos Related Diseases, University of Western Australia, Perth, Australia
| | - Anna K. Nowak
- National Research Centre for Asbestos Related Diseases, University of Western Australia, Perth, Australia
| | - Sathish Mahendran
- National Research Centre for Asbestos Related Diseases, University of Western Australia, Perth, Australia
| | - Irma Larma
- National Research Centre for Asbestos Related Diseases, University of Western Australia, Perth, Australia
| | - Amy Prosser
- National Research Centre for Asbestos Related Diseases, University of Western Australia, Perth, Australia
| | - Bruce W. S. Robinson
- National Research Centre for Asbestos Related Diseases, University of Western Australia, Perth, Australia
- School of Medicine and Pharmacology, University of Western Australia, Perth, Australia
| | - Mark J. Smyth
- Cancer Immunology Program, Sir Donald and Lady Trescowthick Laboratories, Peter MacCallum Cancer Centre, East Melbourne, Australia
| | - Anthony A. Scalzo
- Centre for Experimental Immunology, Lions Eye Institute, and Immunology and Virology Program, Centre for Ophthalmology and Visual Science, The University of Western Australia, Nedlands, Australia
| | - Mariapia A. Degli-Esposti
- Centre for Experimental Immunology, Lions Eye Institute, and Immunology and Virology Program, Centre for Ophthalmology and Visual Science, The University of Western Australia, Nedlands, Australia
| | - Richard A. Lake
- National Research Centre for Asbestos Related Diseases, University of Western Australia, Perth, Australia
- * E-mail: (RGvdM); (RAL)
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Quantitative ultrasound characterization of cancer radiotherapy effects in vitro. Int J Radiat Oncol Biol Phys 2008; 72:1236-43. [PMID: 18954718 DOI: 10.1016/j.ijrobp.2008.07.027] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2008] [Revised: 06/24/2008] [Accepted: 07/09/2008] [Indexed: 11/21/2022]
Abstract
PURPOSE Currently, no routinely used imaging modality is available to assess tumor responses to cancer treatment within hours to days after radiotherapy. In this study, we demonstrate the preclinical application of quantitative ultrasound methods to characterize the cellular responses to cancer radiotherapy in vitro. METHODS AND MATERIALS Three different cell lines were exposed to radiation doses of 2-8 Gy. Data were collected with an ultrasound scanner using frequencies of 10-30 MHz. As indicators of response, ultrasound integrated backscatter and spectral slope were determined from the cell samples. These parameters were corrected for ultrasonic attenuation by measuring the attenuation coefficient. RESULTS A significant increase in the ultrasound integrated backscatter of 4-7 dB (p < 0.001) was found for radiation-treated cells compared with viable cells at all radiation doses. The spectral slopes decreased in the cell samples that predominantly underwent mitotic arrest/catastrophe after radiotherapy, consistent with an increase in cell size. In contrast, the spectral slopes did not change significantly in the cell samples that underwent a mix of cell death (apoptosis and mitotic arrest), with no significant change in average cell size. CONCLUSION The changes in ultrasound integrated backscatter and spectral slope were direct consequences of cell and nuclear morphologic changes associated with cell death. The results indicate that this combination of quantitative ultrasonic parameters has the potential to assess the cell responses to radiation, differentiate between different types of cell death, and provide a preclinical framework to monitor tumor responses in vivo.
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Methods for simultaneous measurement of apoptosis and cell surface phenotype of epithelial cells in effusions by flow cytometry. Nat Protoc 2008; 3:955-64. [PMID: 18546596 DOI: 10.1038/nprot.2008.77] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We describe here a protocol for the detection of epithelial cells in effusions combined with quantification of apoptosis by flow cytometry (FCM). The procedure described consists of the following stages: culturing and induction of apoptosis by staurosporine in control ovarian carcinoma cell lines (SKOV-3 and OVCAR-8); preparation of effusion specimens and cell lines for staining; staining of cancer cells in effusions and cell lines for cell surface markers (Ber-EP4, EpCAM and CD45) and intracellular/nuclear markers of apoptosis (cleaved caspase-3 and caspase-8, and incorporated deoxyuridine triphosphates); and FCM analysis of stained cell lines and effusions. This protocol identifies a specific cell population in cytologically heterogeneous clinical specimens and applies two methods to measure different aspects of apoptosis in the cell population of interest. The cleaved caspase and deoxyuridine triphosphate incorporation FCM assays are run in parallel and require (including sample preparation, staining, instrument adjustment and data acquisition) 8 h. The culturing of cell lines requires 2-3 days and induction of apoptosis requires 16 h.
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