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Kırbaş OK, Sağraç D, Çiftçi ÖC, Özdemir G, Öztürkoğlu D, Bozkurt BT, Derman ÜC, Taşkan E, Taşlı PN, Özdemir BS, Şahin F. Unveiling the potential: Extracellular vesicles from plant cell suspension cultures as a promising source. Biofactors 2025; 51:e2090. [PMID: 38989918 PMCID: PMC11680973 DOI: 10.1002/biof.2090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 06/11/2024] [Indexed: 07/12/2024]
Abstract
Extracellular vesicles are secreted by all eukaryotic cells and they have an important role in intercellular signaling. Plant extracellular vesicles (PEVs) are a novel area of research that has gained attention due to their potential implications in biomolecule transport and therapeutic applications. PEVs are lipid bilayer-enclosed structures that contain a diverse cargo of biomolecules such as proteins and lipids. Moreover, it is known that PEVs have a noticeable therapeutic potential for various conditions such as inflammation and oxidative stress. However, there are critical problems such as removing the endosomes and plant-derived biomolecules that decrease the standardization and therapeutic efficacy of PEVs. In our study, the aim was to characterize plant cell suspension-derived extracellular vesicles (PCSEVs) obtained from two different plant cell suspension cultures: Stevia rebaudiana and Vaccaria hispanica. These vesicles were isolated using ultrafiltration and characterized with nanoparticle tracking analysis (NTA) and atomic force microscopy (AFM). The molecular composition of PCSEVs was profiled and the cellular uptake assay was performed. Our results demonstrated that PCSEVs have a spherical shape, less than 200 nm. In the fatty acid analysis, the primary components in PCSEVs were palmitic acid, linoleic acid, and cis-vaccenic acid. The protein content of Stevia rebaudiana-derived EVs (SDEVs) was largely associated with proteins involved in extracellular structures and functions. Conversely, Vaccaria hispanica-derived EVs (HDEVs) displayed a higher presence of cytosolic proteins. These findings contribute to the understanding of PCSEVs and open up potential avenues in extracellular vesicle research, pointing to promising prospects for future innovations in various fields.
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Affiliation(s)
- Oğuz Kaan Kırbaş
- Faculty of Engineering, Department of Genetics and BioengineeringYeditepe UniversityIstanbulTurkey
| | - Derya Sağraç
- Faculty of Engineering, Department of Genetics and BioengineeringYeditepe UniversityIstanbulTurkey
| | - Özgün Cem Çiftçi
- Faculty of Engineering, Department of Genetics and BioengineeringYeditepe UniversityIstanbulTurkey
| | - Gökçeçiçek Özdemir
- Faculty of Engineering, Department of Genetics and BioengineeringYeditepe UniversityIstanbulTurkey
| | - Dilek Öztürkoğlu
- Faculty of Engineering, Department of Genetics and BioengineeringYeditepe UniversityIstanbulTurkey
| | - Batuhan Turhan Bozkurt
- Faculty of Engineering, Department of Genetics and BioengineeringYeditepe UniversityIstanbulTurkey
| | - Ümit Cem Derman
- Faculty of Engineering, Department of Genetics and BioengineeringYeditepe UniversityIstanbulTurkey
| | - Ezgi Taşkan
- Faculty of Engineering, Department of Genetics and BioengineeringYeditepe UniversityIstanbulTurkey
| | - Pakize Neslihan Taşlı
- Faculty of Engineering, Department of Genetics and BioengineeringYeditepe UniversityIstanbulTurkey
| | - Bahar Soğutmaz Özdemir
- Faculty of Engineering, Department of Genetics and BioengineeringYeditepe UniversityIstanbulTurkey
| | - Fikrettin Şahin
- Faculty of Engineering, Department of Genetics and BioengineeringYeditepe UniversityIstanbulTurkey
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Caller T, Rotem I, Shaihov-Teper O, Lendengolts D, Schary Y, Shai R, Glick-Saar E, Dominissini D, Motiei M, Katzir I, Popovtzer R, Nahmoud M, Boomgarden A, D'Souza-Schorey C, Naftali-Shani N, Leor J. Small Extracellular Vesicles From Infarcted and Failing Heart Accelerate Tumor Growth. Circulation 2024; 149:1729-1748. [PMID: 38487879 PMCID: PMC11220912 DOI: 10.1161/circulationaha.123.066911] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 02/20/2024] [Indexed: 05/24/2024]
Abstract
BACKGROUND Myocardial infarction (MI) and heart failure are associated with an increased incidence of cancer. However, the mechanism is complex and unclear. Here, we aimed to test our hypothesis that cardiac small extracellular vesicles (sEVs), particularly cardiac mesenchymal stromal cell-derived sEVs (cMSC-sEVs), contribute to the link between post-MI left ventricular dysfunction (LVD) and cancer. METHODS We purified and characterized sEVs from post-MI hearts and cultured cMSCs. Then, we analyzed cMSC-EV cargo and proneoplastic effects on several lines of cancer cells, macrophages, and endothelial cells. Next, we modeled heterotopic and orthotopic lung and breast cancer tumors in mice with post-MI LVD. We transferred cMSC-sEVs to assess sEV biodistribution and its effect on tumor growth. Finally, we tested the effects of sEV depletion and spironolactone treatment on cMSC-EV release and tumor growth. RESULTS Post-MI hearts, particularly cMSCs, produced more sEVs with proneoplastic cargo than nonfailing hearts did. Proteomic analysis revealed unique protein profiles and higher quantities of tumor-promoting cytokines, proteins, and microRNAs in cMSC-sEVs from post-MI hearts. The proneoplastic effects of cMSC-sEVs varied with different types of cancer, with lung and colon cancers being more affected than melanoma and breast cancer cell lines. Post-MI cMSC-sEVs also activated resting macrophages into proangiogenic and protumorigenic states in vitro. At 28-day follow-up, mice with post-MI LVD developed larger heterotopic and orthotopic lung tumors than did sham-MI mice. Adoptive transfer of cMSC-sEVs from post-MI hearts accelerated the growth of heterotopic and orthotopic lung tumors, and biodistribution analysis revealed accumulating cMSC-sEVs in tumor cells along with accelerated tumor cell proliferation. sEV depletion reduced the tumor-promoting effects of MI, and adoptive transfer of cMSC-sEVs from post-MI hearts partially restored these effects. Finally, spironolactone treatment reduced the number of cMSC-sEVs and suppressed tumor growth during post-MI LVD. CONCLUSIONS Cardiac sEVs, specifically cMSC-sEVs from post-MI hearts, carry multiple protumorigenic factors. Uptake of cMSC-sEVs by cancer cells accelerates tumor growth. Treatment with spironolactone significantly reduces accelerated tumor growth after MI. Our results provide new insight into the mechanism connecting post-MI LVD to cancer and propose a translational option to mitigate this deadly association.
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Affiliation(s)
- Tal Caller
- Neufeld and Tamman Cardiovascular Research Institutes, School of Medicine, Tel Aviv University, Israel (T.C., I.R., O.S.-T., D.L., Y.S., R.S., M.N., N.N.-S., J.L.)
- Lev Leviev Cardiovascular and Thoracic Center (T.C., I.R., O.S.-T., D.L., Y.S., N.N.-S., J.L.), Sheba Medical Center, Tel Hashomer, Israel
| | - Itai Rotem
- Neufeld and Tamman Cardiovascular Research Institutes, School of Medicine, Tel Aviv University, Israel (T.C., I.R., O.S.-T., D.L., Y.S., R.S., M.N., N.N.-S., J.L.)
- Lev Leviev Cardiovascular and Thoracic Center (T.C., I.R., O.S.-T., D.L., Y.S., N.N.-S., J.L.), Sheba Medical Center, Tel Hashomer, Israel
| | - Olga Shaihov-Teper
- Neufeld and Tamman Cardiovascular Research Institutes, School of Medicine, Tel Aviv University, Israel (T.C., I.R., O.S.-T., D.L., Y.S., R.S., M.N., N.N.-S., J.L.)
- Lev Leviev Cardiovascular and Thoracic Center (T.C., I.R., O.S.-T., D.L., Y.S., N.N.-S., J.L.), Sheba Medical Center, Tel Hashomer, Israel
| | - Daria Lendengolts
- Neufeld and Tamman Cardiovascular Research Institutes, School of Medicine, Tel Aviv University, Israel (T.C., I.R., O.S.-T., D.L., Y.S., R.S., M.N., N.N.-S., J.L.)
- Lev Leviev Cardiovascular and Thoracic Center (T.C., I.R., O.S.-T., D.L., Y.S., N.N.-S., J.L.), Sheba Medical Center, Tel Hashomer, Israel
| | - Yeshai Schary
- Neufeld and Tamman Cardiovascular Research Institutes, School of Medicine, Tel Aviv University, Israel (T.C., I.R., O.S.-T., D.L., Y.S., R.S., M.N., N.N.-S., J.L.)
- Lev Leviev Cardiovascular and Thoracic Center (T.C., I.R., O.S.-T., D.L., Y.S., N.N.-S., J.L.), Sheba Medical Center, Tel Hashomer, Israel
| | - Ruty Shai
- Neufeld and Tamman Cardiovascular Research Institutes, School of Medicine, Tel Aviv University, Israel (T.C., I.R., O.S.-T., D.L., Y.S., R.S., M.N., N.N.-S., J.L.)
- Pediatric Hemato-Oncology, Edmond and Lilly Safra Children's Hospital, Cancer Research Center (R.S.), Sheba Medical Center, Tel Hashomer, Israel
| | - Efrat Glick-Saar
- Cancer Research Center and Wohl Centre for Translational Medicine (E.G.-S., D.D.), Sheba Medical Center, Tel Hashomer, Israel
| | - Dan Dominissini
- Cancer Research Center and Wohl Centre for Translational Medicine (E.G.-S., D.D.), Sheba Medical Center, Tel Hashomer, Israel
| | - Menachem Motiei
- Faculty of Engineering, Bar-Ilan University, Ramat Gan, Israel (M.M., I.K., R.P.)
| | - Idan Katzir
- Faculty of Engineering, Bar-Ilan University, Ramat Gan, Israel (M.M., I.K., R.P.)
| | - Rachela Popovtzer
- Faculty of Engineering, Bar-Ilan University, Ramat Gan, Israel (M.M., I.K., R.P.)
| | | | - Alex Boomgarden
- Department of Biological Sciences, University of Notre Dame, IN (A.B., C.D'S.-S.)
| | | | - Nili Naftali-Shani
- Neufeld and Tamman Cardiovascular Research Institutes, School of Medicine, Tel Aviv University, Israel (T.C., I.R., O.S.-T., D.L., Y.S., R.S., M.N., N.N.-S., J.L.)
- Lev Leviev Cardiovascular and Thoracic Center (T.C., I.R., O.S.-T., D.L., Y.S., N.N.-S., J.L.), Sheba Medical Center, Tel Hashomer, Israel
| | - Jonathan Leor
- Neufeld and Tamman Cardiovascular Research Institutes, School of Medicine, Tel Aviv University, Israel (T.C., I.R., O.S.-T., D.L., Y.S., R.S., M.N., N.N.-S., J.L.)
- Lev Leviev Cardiovascular and Thoracic Center (T.C., I.R., O.S.-T., D.L., Y.S., N.N.-S., J.L.), Sheba Medical Center, Tel Hashomer, Israel
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Zumbardo-Bacelis GA, Peponi L, Vargas-Coronado RF, Rodríguez-Velázquez E, Alatorre-Meda M, Chevallier P, Copes F, Mantovani D, Abraham GA, Cauich-Rodríguez JV. A Comparison of Three-Layer and Single-Layer Small Vascular Grafts Manufactured via the Roto-Evaporation Method. Polymers (Basel) 2024; 16:1314. [PMID: 38794507 PMCID: PMC11125268 DOI: 10.3390/polym16101314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/18/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024] Open
Abstract
This study used the roto-evaporation technique to engineer a 6 mm three-layer polyurethane vascular graft (TVG) that mimics the architecture of human coronary artery native vessels. Two segmented polyurethanes were synthesized using lysine (SPUUK) and ascorbic acid (SPUAA), and the resulting materials were used to create the intima and adventitia layers, respectively. In contrast, the media layer of the TVG was composed of a commercially available polyurethane, Pearlbond 703 EXP. For comparison purposes, single-layer vascular grafts (SVGs) from individual polyurethanes and a polyurethane blend (MVG) were made and tested similarly and evaluated according to the ISO 7198 standard. The TVG exhibited the highest circumferential tensile strength and longitudinal forces compared to single-layer vascular grafts of lower thicknesses made from the same polyurethanes. The TVG also showed higher suture and burst strength values than native vessels. The TVG withstood up to 2087 ± 139 mmHg and exhibited a compliance of 0.15 ± 0.1%/100 mmHg, while SPUUK SVGs showed a compliance of 5.21 ± 1.29%/100 mmHg, akin to coronary arteries but superior to the saphenous vein. An indirect cytocompatibility test using the MDA-MB-231 cell line showed 90 to 100% viability for all polyurethanes, surpassing the minimum 70% threshold needed for biomaterials deemed cytocompatibility. Despite the non-cytotoxic nature of the polyurethane extracts when grown directly on the surface, they displayed poor fibroblast adhesion, except for SPUUK. All vascular grafts showed hemolysis values under the permissible limit of 5% and longer coagulation times.
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Affiliation(s)
- Gualberto Antonio Zumbardo-Bacelis
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Calle 43 #130 x 32 y 34, Colonia Chuburná de Hidalgo, Mérida C.P. 97205, Mexico; (G.A.Z.-B.); (R.F.V.-C.)
- Department of Chemical Engineering, Laval University, Quebec, QC G1V 0A6, Canada
| | - Laura Peponi
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain
| | - Rossana Faride Vargas-Coronado
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Calle 43 #130 x 32 y 34, Colonia Chuburná de Hidalgo, Mérida C.P. 97205, Mexico; (G.A.Z.-B.); (R.F.V.-C.)
| | - Eustolia Rodríguez-Velázquez
- Facultad de Odontología, Universidad Autónoma de Baja California, Tijuana 22390, Mexico;
- Centro de Graduados e Investigación en Química-Grupo de Biomateriales y Nanomedicina, Tecnológico Nacional de México, Instituto Tecnológico de Tijuana, Tijuana 22510, Mexico
| | - Manuel Alatorre-Meda
- Centro de Graduados e Investigación en Química-Grupo de Biomateriales y Nanomedicina, CONAHCYT-Tecnológico Nacional de México, Instituto Tecnológico de Tijuana, Tijuana 22510, Mexico;
| | - Pascale Chevallier
- Laboratory for Biomaterials and Bioengineering (CRC-I), Department of Min-Met-Materials Engineering & CHU de Quebec Research Center, Laval University, Quebec, QC G1V0A6, Canada; (P.C.)
| | - Francesco Copes
- Laboratory for Biomaterials and Bioengineering (CRC-I), Department of Min-Met-Materials Engineering & CHU de Quebec Research Center, Laval University, Quebec, QC G1V0A6, Canada; (P.C.)
| | - Diego Mantovani
- Laboratory for Biomaterials and Bioengineering (CRC-I), Department of Min-Met-Materials Engineering & CHU de Quebec Research Center, Laval University, Quebec, QC G1V0A6, Canada; (P.C.)
| | - Gustavo A. Abraham
- Research Institute for Materials Science and Technology, INTEMA (UNMdP-CONICET). Av. Colón 10850, Mar del Plata B7606BWV, Argentina
| | - Juan Valerio Cauich-Rodríguez
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Calle 43 #130 x 32 y 34, Colonia Chuburná de Hidalgo, Mérida C.P. 97205, Mexico; (G.A.Z.-B.); (R.F.V.-C.)
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Aye TA, Polkit S, Klaijan I, Nachanok K, Salil L, Pasutha T. Acemannan-containing bioactive resin modified glass ionomer demonstrates satisfactory physical and biological properties. J Dent Sci 2024; 19:1061-1069. [PMID: 38618108 PMCID: PMC11010605 DOI: 10.1016/j.jds.2023.06.009] [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: 04/17/2023] [Revised: 06/11/2023] [Indexed: 04/16/2024] Open
Abstract
Background/purpose Resin-modified glass ionomers (RMGIs) have been recommended as liner and cement to provide the teeth with mechanical support, a chemical barrier, and thermal insulation. Acemannan, the main polysaccharide extracted from Aloe vera, is a promising inductive material in vitro and in vivo. This study aimed to develop acemannan-containing bioactive resin-modified glass ionomers (RMGIs). Materials and methods Acemannan (3%, 5%, and 10%) was added to the three types of RMGIs (RU-HBM1/Fuji II LC/Vitrebond) to generate 3%, 5%, and 10% aceRMGIs (aceRU/aceFuji/aceVB). The materials were evaluated for depth of cure/flexural strength/cumulative fluoride ion release. Cell viability and vascular endothelial growth factor (VEGF) and bone morphogenetic protein-2 (BMP-2) secretion were determined using MTT/apoptosis/necrosis assays, and ELISA kits, respectively. RMGI without acemannan were used as controls. Results The aceRMGIs met the ISO requirements for depth of cure and flexural strength. Adding 10% acemannan increased the cumulative fluoride release in the RU and FJ groups, but slightly decreased it in the VB group (P < 0.05). The MTT assay revealed 10% aceRU and all aceFJ groups significantly increased cell viability compared with each control group (P < 0.05). Apoptosis/necrosis assay showed the biocompatibility of all aceRMGIs. Adding acemannan to RMGIs significantly induced VEGF expression in a dose dependent manner while 5% and 10% aceRU significantly induced BMP-2 expression compared with RU group (P < 0.05). Conclusion We conclude that 5-10% acemannan in RMGI is the optimal concentration based on its physical properties and ability to induce pulp cell proliferation and growth factor secretion.
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Affiliation(s)
- Thant Aye Aye
- Dental Biomaterials Science Program, Graduate School, Chulalongkorn University, Bangkok, Thailand
- Research Unit of Herbal Medicine, Biomaterial, and Material for Dental Treatment, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Sangvanich Polkit
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Inchudech Klaijan
- Research Unit of Herbal Medicine, Biomaterial, and Material for Dental Treatment, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Kuvieng Nachanok
- Research Unit of Herbal Medicine, Biomaterial, and Material for Dental Treatment, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Lalitkanjanakul Salil
- Research Unit of Herbal Medicine, Biomaterial, and Material for Dental Treatment, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Thunyakitpisal Pasutha
- Research Unit of Herbal Medicine, Biomaterial, and Material for Dental Treatment, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- Institute of Dentistry, Suranaree University of Technology, Nakhon Ratchasima, Thailand
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Brown RSE, Jacobs IM, Khant Aung Z, Knowles PJ, Grattan DR, Ladyman SR. High fat diet-induced maternal obesity in mice impairs peripartum maternal behaviour. J Neuroendocrinol 2023; 35:e13350. [PMID: 37926066 DOI: 10.1111/jne.13350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/20/2023] [Accepted: 10/11/2023] [Indexed: 11/07/2023]
Abstract
Obesity during pregnancy represents a significant health issue and can lead to increased complications during pregnancy and impairments with breastfeeding, along with long-term negative health consequences for both mother and offspring. In rodent models, diet-induced obesity (DIO) during pregnancy leads to poor outcomes for offspring. Using a DIO mouse model, consisting of feeding mice a high fat diet for 8 weeks before mating, we recapitulate the effect of high pup mortality within the first 3 days postpartum. To examine the activity of the dam around the time of birth, late pregnant control and DIO dams were recorded in their home cages and the behaviour of the dam immediately before and after birth was analysed. Prior to giving birth, DIO dams spent less time engaging in nesting behaviour, while after birth, DIO dams spent less time in the nest with their pups compared to control dams, indicating reduced pup-engagement in the early postpartum period. We have previously reported that lactogenic hormone action, mediated by the prolactin receptor, in the medial preoptic area of the hypothalamus (MPOA) is critical for the onset of normal postpartum maternal behaviour. We hypothesized that DIO dams may have lower lactogenic hormone activity during late pregnancy, which would contribute to impaired onset of normal postpartum maternal behaviour. Day 16 lactogenic activity, transport of prolactin into the brain, and plasma prolactin concentrations around birth were all similar in control and DIO dams. Moreover, endogenous pSTAT5, a marker of prolactin receptor activity, in the MPOA was unaffected by DIO. Overall, these data indicate that lactogenic activity in late pregnancy of DIO dams is not different to controls and is unlikely to play a major role in impaired onset of normal postpartum maternal behaviour.
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Affiliation(s)
- Rosemary Shanon Eileen Brown
- Centre for Neuroendocrinology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Department of Physiology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Ireland M Jacobs
- Centre for Neuroendocrinology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Zin Khant Aung
- Centre for Neuroendocrinology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Pene J Knowles
- Centre for Neuroendocrinology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - David R Grattan
- Centre for Neuroendocrinology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, Auckland, New Zealand
| | - Sharon R Ladyman
- Centre for Neuroendocrinology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, Auckland, New Zealand
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Hall A, Bartek J, Wagner E, Lächelt U, Moghimi SM. High-resolution bioenergetics correlates the length of continuous protonatable diaminoethane motif of four-armed oligo(ethanamino)amide transfectants to cytotoxicity. J Control Release 2023; 361:115-129. [PMID: 37532151 DOI: 10.1016/j.jconrel.2023.07.051] [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: 03/19/2023] [Revised: 07/15/2023] [Accepted: 07/30/2023] [Indexed: 08/04/2023]
Abstract
Recent clinical success with Onpattro and cationic ionizable lipid nanoparticle-based mRNA vaccines has rejuvenated research in the design and engineering of broader synthetic cationic vectors for nucleic acid compaction and transfection. However, perturbation of metabolic processes and cytotoxicity are still of concern with synthetic cationic vectors. Here, through an integrated bioenergetic and biomembrane integrity probing in three different human cell lines we reveal the dynamic effect of a library of sequence-defined four-arm oligo(ethanamino)amide transfectant on cell homeostasis, and identify metabolically safe building units over wide concentration ranges. The results show differential effects of the oligo(ethanamino)amide structure of comparable molecular weight on cell energetics. The severity of polycation effect on bioenergetic crisis follows with the length of continuous protonatable diaminoethane motif in the ascending order of glutaryl-triethylene tetramine, succinyl-tetraethylene pentamine and succinyl-pentaethylene hexamine. We further identify oligomeric structures that do not induce bioenergetic crisis even at high concentrations. Finally, transfection studies with a library of polyplexes carrying a reporter gene show no correlation between transfection efficiency and cytotoxicity. These observations demonstrate the usefulness of integrated high-resolution respirometry and plasma membrane integrity probing as a highly sensitive medium-throughput screening strategy for identification and selection of safe building units for transfectant engineering.
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Affiliation(s)
- Arnaldur Hall
- Danish Cancer Society Research Center, DK-2100 Copenhagen, Denmark
| | - Jiri Bartek
- Danish Cancer Society Research Center, DK-2100 Copenhagen, Denmark; Division of Genome Biology, Department of Medical Biochemistry and Biophysics, Science for Life Laboratory, Karolinska Institute, SE-17177 Stockholm, Sweden
| | - Ernst Wagner
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians Universität, Butenandstrasse 5-13, 81377 Munich, Germany
| | - Ulrich Lächelt
- Pharmaceutical Biotechnology, Department of Pharmacy, Ludwig-Maximilians Universität, Butenandstrasse 5-13, 81377 Munich, Germany; Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
| | - Seyed Moein Moghimi
- School of Pharmacy, Newcastle University, Newcastle upon Tyne NE1 7RU, UK; Translational and Clinical Research Institute, Faculty of Health and Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK; Colorado Center for Nanomedicine and Nanosafety, University of Colorado Anschutz Medical Center, Aurora, CO, USA.
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7
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Serioli L, Gruzinskyte L, Zappalà G, Hwu ET, Laksafoss TZ, Jensen PL, Demarchi D, Müllertz A, Boisen A, Zór K. Moving perfusion culture and live-cell imaging from lab to disc: proof of concept toxicity assay with AI-based image analysis. LAB ON A CHIP 2023; 23:1603-1612. [PMID: 36790123 DOI: 10.1039/d2lc00984f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In vitro, cell-based assays are essential in diagnostics and drug development. There are ongoing efforts to establish new technologies that enable real-time detection of cell-drug interaction during culture under flow conditions. Our compact (10 × 10 × 8.5 cm) cell culture and microscope on disc (CMoD) platform aims to decrease the application barriers of existing lab-on-a-chip (LoC) approaches. For the first time in a centrifugal device, (i) cells were cultured for up to six days while a spindle motor facilitated culture medium perfusion, and (ii) an onboard microscope enabled live bright-field imaging of cells while the data wirelessly transmitted to a computer. The quantification of cells from the acquired images was done using artificial intelligence (AI) software. After optimization, the obtained cell viability data from the AI-based image analysis proved to correlate well with data collected from commonly used image analysis software. The CMoD was also suitable for conducting a proof-of-concept toxicity assay with HeLa cells under continuous flow. The half-maximal inhibitory time (IT50) for various concentrations of doxorubicin (DOX) in the case of HeLa cells in flow, was shown to be lower than the IT50 obtained from a static cytotoxicity assay, indicating a faster onset of cell death in flow. The CMoD proved to be easy to handle, enabled cell culture and monitoring without assistance, and is a promising tool for examining the dynamic processes of cells in real-time assays.
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Affiliation(s)
- Laura Serioli
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Denmark.
- BioInnovation Institute Foundation, Copenhagen N 2800, Denmark
| | - Lina Gruzinskyte
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Denmark.
| | - Giulia Zappalà
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Denmark.
- Department of Electronics and Telecommunications, Politecnico di Torino, Italy
| | - En Te Hwu
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Denmark.
| | - Trygvi Zachariassen Laksafoss
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Denmark.
| | | | - Danilo Demarchi
- Department of Electronics and Telecommunications, Politecnico di Torino, Italy
| | - Anette Müllertz
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Denmark.
| | - Anja Boisen
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Denmark.
- BioInnovation Institute Foundation, Copenhagen N 2800, Denmark
| | - Kinga Zór
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Denmark.
- BioInnovation Institute Foundation, Copenhagen N 2800, Denmark
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8
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Härk HH, Porosk L, de Mello LR, Arukuusk P, da Silva ER, Kurrikoff K. Modification of the Linker Amino Acid in the Cell-Penetrating Peptide NickFect55 Leads to Enhanced pDNA Transfection for In Vivo Applications. Pharmaceutics 2023; 15:pharmaceutics15030883. [PMID: 36986744 PMCID: PMC10051810 DOI: 10.3390/pharmaceutics15030883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/03/2023] [Accepted: 03/07/2023] [Indexed: 03/11/2023] Open
Abstract
Despite numerous efforts over the last three decades, nucleic acid-based therapeutics still lack delivery platforms in the clinical stage. Cell-penetrating peptides (CPPs) may offer solutions as potential delivery vectors. We have previously shown that designing a “kinked” structure in the peptide backbone resulted in a CPP with efficient in vitro transfection properties. Further optimization of the charge distribution in the C-terminal part of the peptide led to potent in vivo activity with the resultant CPP NickFect55 (NF55). Currently, the impact of the linker amino acid was further investigated in the CPP NF55, with the aim to discover potential transfection reagents for in vivo application. Taking into account the expression of the delivered reporter in the lung tissue of mice, and the cell transfection in the human lung adenocarcinoma cell line, the new peptides NF55-Dap and NF55-Dab* have a high potential for delivering nucleic acid-based therapeutics to treat lung associated diseases, such as adenocarcinoma.
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Affiliation(s)
- Heleri H. Härk
- Institute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia; (L.P.); (P.A.); (K.K.)
- Correspondence:
| | - Ly Porosk
- Institute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia; (L.P.); (P.A.); (K.K.)
| | - Lucas R. de Mello
- Departamento de Biofisica, Universidade Federal de São Paulo, São Paulo 04023-062, Brazil; (L.R.d.M.); (E.R.d.S.)
| | - Piret Arukuusk
- Institute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia; (L.P.); (P.A.); (K.K.)
| | - Emerson R. da Silva
- Departamento de Biofisica, Universidade Federal de São Paulo, São Paulo 04023-062, Brazil; (L.R.d.M.); (E.R.d.S.)
| | - Kaido Kurrikoff
- Institute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia; (L.P.); (P.A.); (K.K.)
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9
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Evaluation of fluorescence-based viability stains in cells dissociated from scleractinian coral Pocillopora damicornis. Sci Rep 2022; 12:15297. [PMID: 36097278 PMCID: PMC9468155 DOI: 10.1038/s41598-022-19586-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 08/31/2022] [Indexed: 11/09/2022] Open
Abstract
The application of established cell viability assays such as the commonly used trypan blue staining method to coral cells is not straightforward due to different culture parameters and different cellular features specific to mammalian cells compared to marine invertebrates. Using Pocillopora damicornis as a model, we characterized the autofluorescence and tested different fluorescent dye pair combinations to identify alternative viability indicators. The cytotoxicity of different representative molecules, namely small organic molecules, proteins and nanoparticles (NP), was measured after 24 h of exposure using the fluorescent dye pair Hoechst 33342 and SYTOX orange. Our results show that this dye pair can be distinctly measured in the presence of fluorescent proteins plus chlorophyll. P. damicornis cells exposed for 24 h to Triton-X100, insulin or titanium dioxide (TiO2) NPs, respectively, at concentrations ranging from 0.5 to 100 µg/mL, revealed a LC50 of 0.46 µg/mL for Triton-X100, 6.21 µg/mL for TiO2 NPs and 33.9 µg/mL for insulin. This work presents the approach used to customize dye pairs for membrane integrity-based cell viability assays considering the species- and genotype-specific autofluorescence of scleractinian corals, namely: endogenous fluorescence characterization followed by the selection of dyes that do not overlap with endogenous signals.
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10
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Radecki KC, Ford MJ, Phillipps HR, Lorenson MY, Grattan DR, Yamanaka Y, Walker AM. Multiple cell types in the oviduct express the prolactin receptor. FASEB Bioadv 2022; 4:485-504. [PMID: 35812077 PMCID: PMC9254223 DOI: 10.1096/fba.2022-00004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 03/25/2022] [Accepted: 03/25/2022] [Indexed: 11/18/2022] Open
Abstract
Little is known about the physiological role of prolactin in the oviduct. Examining mRNA for all four isoforms of the prolactin receptor (PRLR) in mice by functional oviduct segment and stage of the estrous cycle, we found short form 3 (SF3) to be the most highly expressed, far exceeding the long form (LF) in highly ciliated areas such as the infundibulum, whereas in areas of low ciliation, the SF3 to LF ratio was ~1. SF2 expression was low throughout the oviduct, and SF1 was undetectable. Only in the infundibulum did PRLR ratios change with the estrous cycle. Immunofluorescent localization of SF3 and LF showed an epithelial (both mucosal and mesothelial) distribution aligned with the mRNA results. Despite the high SF3/LF ratio in densely ciliated regions, these regions responded to an acute elevation of prolactin (30 min, intraperitoneal), with LF-tyrosine phosphorylated STAT5 seen within cilia. Collectively, these results show ciliated cells are responsive to prolactin and suggest that prolactin regulates estrous cyclic changes in ciliated cell function in the infundibulum. Changes in gene expression in the infundibulum after prolonged prolactin treatment (7-day) showed prolactin-induced downregulation of genes necessary for cilium development/function, a result supporting localization of PRLRs on ciliated cells, and one further suggesting hyperprolactinemia would negatively impact ciliated cell function and therefore fertility. Flow cytometry, single-cell RNAseq, and analysis of LF-td-Tomato transgenic mice supported expression of PRLRs in at least a proportion of epithelial cells while also hinting at additional roles for prolactin in smooth muscle and other stromal cells.
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Affiliation(s)
- Kelly C. Radecki
- Division of Biomedical Sciences, School of MedicineUniversity of CaliforniaRiversideCaliforniaUSA
| | - Matthew J. Ford
- Department of Human GeneticsRosalind and Morris Goodman Cancer Institute, McGill UniversityQuebecCanada
| | - Hollian R. Phillipps
- Centre for Neuroendocrinology and Department of Anatomy, School of Biomedical SciencesUniversity of OtagoDunedinNew Zealand
| | - Mary Y. Lorenson
- Division of Biomedical Sciences, School of MedicineUniversity of CaliforniaRiversideCaliforniaUSA
| | - David R. Grattan
- Centre for Neuroendocrinology and Department of Anatomy, School of Biomedical SciencesUniversity of OtagoDunedinNew Zealand
| | - Yojiro Yamanaka
- Department of Human GeneticsRosalind and Morris Goodman Cancer Institute, McGill UniversityQuebecCanada
| | - Ameae M. Walker
- Division of Biomedical Sciences, School of MedicineUniversity of CaliforniaRiversideCaliforniaUSA
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11
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Hayal TB, Kırbaş OK, Bozkurt BT, Taşlı PN, Bülbül B, Beyaz S, Şahin F. Lead Borate Nanoparticles Induce Apoptotic Gene Activity in P53 Mutant Cancer Cells. Biol Trace Elem Res 2022; 200:574-581. [PMID: 33834390 DOI: 10.1007/s12011-021-02696-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 03/28/2021] [Indexed: 12/21/2022]
Abstract
Cancer is a complex and multistage disease that causes suffering worldwide. Several mutations in tumor suppressor proteins are mostly responsible for tumorigenic development. Thus, determination of the mutations and developing a mutation targeted therapy are crucial in order to cure cancer. Moreover, since healthy cells do not have mutations in their tumor suppressor genes, mutation-specific treatment is responsible for selective treatment without harming a healthy tissue in the body. In this current study, lead borate nanoparticles (LB-Np) have been synthesized, and their effects on P53 mutant cancer cells were investigated. The synthesis method includes steps of mixing a borate buffer solution with the lead nitrate solution, washing the resulting precipitate with distilled water and eventually preparing stable LB-Np solutions. Cell viability analysis was conducted to identify the toxicity of LB-Np in HaCaT, A549, MCF7, and T47D cell lines. The changes in morphologies of breast cancer cell lines were demonstrated by using microscopical analysis. Additionally, alterations in gene expressions were determined in breast cancer cell lines after LB-Np treatment. This multidisciplinary study also identified the selective effect of LB-Np in cancer cell lines, in vitro. MTS and quantitative polymerase chain reaction assays demonstrated the effect of LB-Np were specific for p53 mutation cell line, T47D. Breast cancer cell line T47D has 580 C/T mutation which affects the activation of p53 tumor suppressor protein. However, LB-Np treatment effectively killed T47D cell lines and did not affect any other cell lines that have no p53 mutations such as MCF7, A549, and healthy HaCaT. Overall, synthesized LB-Np were found to be effective in p53-mutated cell lines and showed a remarkable selective anti-cancer activity.
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Affiliation(s)
- Taha Bartu Hayal
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, 26 Ağustos Campus, Kayisdagi cad., Kayisdagi, TR-34755, Istanbul, Turkey
| | - Oğuz Kaan Kırbaş
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, 26 Ağustos Campus, Kayisdagi cad., Kayisdagi, TR-34755, Istanbul, Turkey
| | - Batuhan Turhan Bozkurt
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, 26 Ağustos Campus, Kayisdagi cad., Kayisdagi, TR-34755, Istanbul, Turkey
| | - Pakize Neslihan Taşlı
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, 26 Ağustos Campus, Kayisdagi cad., Kayisdagi, TR-34755, Istanbul, Turkey
| | - Berna Bülbül
- Department of Chemistry, Faculty of Science and Letters, Balikesir University, Cagis Campus, TR-10145, Balıkesir, Turkey
| | - Seda Beyaz
- Department of Chemistry, Faculty of Science and Letters, Balikesir University, Cagis Campus, TR-10145, Balıkesir, Turkey
| | - Fikrettin Şahin
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, 26 Ağustos Campus, Kayisdagi cad., Kayisdagi, TR-34755, Istanbul, Turkey.
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12
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Secondary Metabolites from Marine-Derived Fungi and Actinobacteria as Potential Sources of Novel Colorectal Cancer Drugs. Mar Drugs 2022; 20:md20010067. [PMID: 35049922 PMCID: PMC8777761 DOI: 10.3390/md20010067] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 01/06/2022] [Accepted: 01/10/2022] [Indexed: 02/04/2023] Open
Abstract
Colorectal cancer is one of the most common cancers diagnosed in the world. Chemotheraphy is one of the most common methods used for the pharmacological treatment of this cancer patients. Nevertheless, the adverse effect of chemotherapy is not optimized for improving the quality of life of people who are older, who are the most vulnerable subpopulation. This review presents recent updates regarding secondary metabolites derived from marine fungi and actinobacteria as novel alternatives for cytotoxic agents against colorectal cancer cell lines HCT116, HT29, HCT15, RKO, Caco-2, and SW480. The observed marine-derived fungi were from the species Aspergillus sp., Penicillium sp., Neosartorya sp., Dichotomomyces sp., Paradendryphiella sp., and Westerdykella sp. Additionally, Streptomyces sp. and Nocardiopsis sp. are actinobacteria discussed in this study. Seventy one compounds reviewed in this study were grouped on the basis of their chemical structures. Indole alkaloids and diketopiperazines made up most compounds with higher potencies when compared with other groups. The potency of indole alkaloids and diketopiperazines was most probably due to halogen-based functional groups and sulfide groups, respectively.
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13
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Shatavari Supplementation in Postmenopausal Women Improves Handgrip Strength and Increases Vastus lateralis Myosin Regulatory Light Chain Phosphorylation but Does Not Alter Markers of Bone Turnover. Nutrients 2021; 13:nu13124282. [PMID: 34959836 PMCID: PMC8708006 DOI: 10.3390/nu13124282] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/26/2021] [Accepted: 11/26/2021] [Indexed: 11/16/2022] Open
Abstract
Shatavari has long been used as an Ayurvedic herb for women's health, but empirical evidence for its effectiveness has been lacking. Shatavari contains phytoestrogenic compounds that bind to the estradiol receptor. Postmenopausal estradiol deficiency contributes to sarcopenia and osteoporosis. In a randomised double-blind trial, 20 postmenopausal women (68.5 ± 6 years) ingested either placebo (N = 10) or shatavari (N = 10; 1000 mg/d, equivalent to 26,500 mg/d fresh weight shatavari) for 6 weeks. Handgrip and knee extensor strength were measured at baseline and at 6 weeks. Vastus lateralis (VL) biopsy samples were obtained. Data are presented as difference scores (Week 6-baseline, median ± interquartile range). Handgrip (but not knee extensor) strength was improved by shatavari supplementation (shatavari +0.7 ± 1.1 kg, placebo -0.4 ± 1.3 kg; p = 0.04). Myosin regulatory light chain phosphorylation, a known marker of improved myosin contractile function, was increased in VL following shatavari supplementation (immunoblotting; placebo -0.08 ± 0.5 a.u., shatavari +0.3 ± 1 arbitrary units (a.u.); p = 0.03). Shatavari increased the phosphorylation of Aktser473 (Aktser473 (placebo -0.6 ± 0.6 a.u., shatavari +0.2 ± 1.3 a.u.; p = 0.03) in VL. Shatavari supplementation did not alter plasma markers of bone turnover (P1NP, β-CTX) and stimulation of human osteoblasts with pooled sera (N = 8 per condition) from placebo and shatavari supplementation conditions did not alter cytokine or metabolic markers of osteoblast activity. Shatavari may improve muscle function and contractility via myosin conformational change and further investigation of its utility in conserving and enhancing musculoskeletal function, in larger and more diverse cohorts, is warranted.
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Kırbaş OK, Bozkurt BT, Taşlı PN, Hayal TB, Özkan İ, Bülbül B, Beyaz S, Şahin F. Effective Scarless Wound Healing Mediated by Erbium Borate Nanoparticles. Biol Trace Elem Res 2021; 199:3262-3271. [PMID: 33159623 DOI: 10.1007/s12011-020-02458-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 10/21/2020] [Indexed: 12/28/2022]
Abstract
The developments of nanoparticle-based treatments that benefit from novel discoveries have an essential place in the regeneration of acute and chronic wounds. Furthermore, research about the treatment methods which attempt to swiftly and scarless wound recovery has increased over time. In recent years, it has been shown that metallic-based nanoparticles, especially silver and gold derived, have an accelerating effect on chronic and contaminated wound healing. The crucial factors of inducing and completion of regeneration of wound are enhanced epithelialization rate and neovascularization in the tissue. In our study, the main purpose is the investigation of the boosting effects of erbium borate nanoparticles on the wound healing process, especially scarless ones. Newly syntesized erbium borate nanoparticles (ErB-Nps) were characterized by their concentration and particle size using nanoparticle tracking analysis (NTA). In order to examine the effect of ErB-Np on wound closure, scratch assay for dermal epithelial cells and tube formation assay for endothelial cells were performed. In addition, in order to examine the effect of the ErB-Np at a molecular level, the levels of genes related to both wound healing, inflammation, and scarless wound closure were determined with the RT-PCR experiment. Consequently, it has been shown that erbium borate nanoparticles have increased the melioration speed of scar tissue and have given clues about scarless healing potential. The investigation of the regeneration potential of erbium borate nanoparticles was done via MTS assay, quantitative PCR analysis, reactive oxygen species assay, and scratch assay. Our results show that ErB-Np is a proper agent that can be used for scarless wound healing.
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Affiliation(s)
- Oğuz Kaan Kırbaş
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, 26 Ağustos Campus, Kayisdagi cad., Ataşehir, TR-34755, Istanbul, Turkey
| | - Batuhan Turhan Bozkurt
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, 26 Ağustos Campus, Kayisdagi cad., Ataşehir, TR-34755, Istanbul, Turkey
| | - Pakize Neslihan Taşlı
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, 26 Ağustos Campus, Kayisdagi cad., Ataşehir, TR-34755, Istanbul, Turkey
| | - Taha Bartu Hayal
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, 26 Ağustos Campus, Kayisdagi cad., Ataşehir, TR-34755, Istanbul, Turkey
| | - İrem Özkan
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, 26 Ağustos Campus, Kayisdagi cad., Ataşehir, TR-34755, Istanbul, Turkey
| | - Berna Bülbül
- Department of Chemistry, Faculty of Science and Letters, Balıkesir University, Cagis Campus, 10145, Balıkesir, Turkey
| | - Seda Beyaz
- Department of Chemistry, Faculty of Science and Letters, Balıkesir University, Cagis Campus, 10145, Balıkesir, Turkey
| | - Fikrettin Şahin
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, 26 Ağustos Campus, Kayisdagi cad., Ataşehir, TR-34755, Istanbul, Turkey.
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15
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Mohtar N, Parumasivam T, Gazzali AM, Tan CS, Tan ML, Othman R, Fazalul Rahiman SS, Wahab HA. Advanced Nanoparticle-Based Drug Delivery Systems and Their Cellular Evaluation for Non-Small Cell Lung Cancer Treatment. Cancers (Basel) 2021; 13:3539. [PMID: 34298753 PMCID: PMC8303683 DOI: 10.3390/cancers13143539] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/18/2021] [Accepted: 06/23/2021] [Indexed: 12/12/2022] Open
Abstract
Lung cancers, the number one cancer killer, can be broadly divided into small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC), with NSCLC being the most commonly diagnosed type. Anticancer agents for NSCLC suffer from various limitations that can be partly overcome by the application of nanomedicines. Nanoparticles is a branch within nanomedicine that can improve the delivery of anticancer drugs, whilst ensuring the stability and sufficient bioavailability following administration. There are many publications available in the literature exploring different types of nanoparticles from different materials. The effectiveness of a treatment option needs to be validated in suitable in vitro and/or in vivo models. This includes the developed nanoparticles, to prove their safety and efficacy. Many researchers have turned towards in vitro models that use normal cells or specific cells from diseased tissues. However, in cellular works, the physiological dynamics that is available in the body could not be mimicked entirely, and hence, there is still possible development of false positive or false negative results from the in vitro models. This article provides an overview of NSCLC, the different nanoparticles available to date, and in vitro evaluation of the nanoparticles. Different types of cells suitable for in vitro study and the important precautions to limit the development of false results are also extensively discussed.
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Affiliation(s)
- Noratiqah Mohtar
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Gelugor 11800, Penang, Malaysia; (N.M.); (T.P.); (A.M.G.); (C.S.T.); (M.L.T.); (H.A.W.)
| | - Thaigarajan Parumasivam
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Gelugor 11800, Penang, Malaysia; (N.M.); (T.P.); (A.M.G.); (C.S.T.); (M.L.T.); (H.A.W.)
| | - Amirah Mohd Gazzali
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Gelugor 11800, Penang, Malaysia; (N.M.); (T.P.); (A.M.G.); (C.S.T.); (M.L.T.); (H.A.W.)
| | - Chu Shan Tan
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Gelugor 11800, Penang, Malaysia; (N.M.); (T.P.); (A.M.G.); (C.S.T.); (M.L.T.); (H.A.W.)
| | - Mei Lan Tan
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Gelugor 11800, Penang, Malaysia; (N.M.); (T.P.); (A.M.G.); (C.S.T.); (M.L.T.); (H.A.W.)
| | - Rozana Othman
- Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Center for Natural Products Research and Drug Discovery (CENAR), Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Siti Sarah Fazalul Rahiman
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Gelugor 11800, Penang, Malaysia; (N.M.); (T.P.); (A.M.G.); (C.S.T.); (M.L.T.); (H.A.W.)
| | - Habibah A. Wahab
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Gelugor 11800, Penang, Malaysia; (N.M.); (T.P.); (A.M.G.); (C.S.T.); (M.L.T.); (H.A.W.)
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16
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Baskın D, Yılmaz Ö, Islam MN, Tülü M, Koyuncu İ, Eren T. Metal adsorption properties of multi‐functional
PAMAM
dendrimer based gels. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210210] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Dilgeş Baskın
- Faculty of Science and Arts, Department of Chemistry Yildiz Technical University Istanbul Turkey
| | - Özge Yılmaz
- Faculty of Science and Arts, Department of Chemistry Yildiz Technical University Istanbul Turkey
| | - Muhammad Nazrul Islam
- Faculty of Science and Arts, Department of Chemistry Yildiz Technical University Istanbul Turkey
| | - Metin Tülü
- Faculty of Science and Arts, Department of Chemistry Yildiz Technical University Istanbul Turkey
| | - İkbal Koyuncu
- Faculty of Science and Arts, Department of Chemistry Yildiz Technical University Istanbul Turkey
| | - Tarik Eren
- Faculty of Science and Arts, Department of Chemistry Yildiz Technical University Istanbul Turkey
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17
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Lipotoxic Impairment of Mitochondrial Function in β-Cells: A Review. Antioxidants (Basel) 2021; 10:antiox10020293. [PMID: 33672062 PMCID: PMC7919463 DOI: 10.3390/antiox10020293] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 02/06/2021] [Accepted: 02/11/2021] [Indexed: 02/08/2023] Open
Abstract
Lipotoxicity is a major contributor to type 2 diabetes mainly promoting mitochondrial dysfunction. Lipotoxic stress is mediated by elevated levels of free fatty acids through various mechanisms and pathways. Impaired peroxisome proliferator-activated receptor (PPAR) signaling, enhanced oxidative stress levels, and uncoupling of the respiratory chain result in ATP deficiency, while β-cell viability can be severely impaired by lipotoxic modulation of PI3K/Akt and mitogen-activated protein kinase (MAPK)/extracellular-signal-regulated kinase (ERK) pathways. However, fatty acids are physiologically required for an unimpaired β-cell function. Thus, preparation, concentration, and treatment duration determine whether the outcome is beneficial or detrimental when fatty acids are employed in experimental setups. Further, ageing is a crucial contributor to β-cell decay. Cellular senescence is connected to loss of function in β-cells and can further be promoted by lipotoxicity. The potential benefit of nutrients has been broadly investigated, and particularly polyphenols were shown to be protective against both lipotoxicity and cellular senescence, maintaining the physiology of β-cells. Positive effects on blood glucose regulation, mitigation of oxidative stress by radical scavenging properties or regulation of antioxidative enzymes, and modulation of apoptotic factors were reported. This review summarizes the significance of lipotoxicity and cellular senescence for mitochondrial dysfunction in the pancreatic β-cell and outlines potential beneficial effects of plant-based nutrients by the example of polyphenols.
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18
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Sheard J, Southam A, MacKay H, Ellington M, Snow M, Khanim F, Bunce C, Johnson W. Combined bezafibrate, medroxyprogesterone acetate and valproic acid treatment inhibits osteosarcoma cell growth without adversely affecting normal mesenchymal stem cells. Biosci Rep 2021; 41:BSR20202505. [PMID: 33289496 PMCID: PMC7786328 DOI: 10.1042/bsr20202505] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 12/02/2020] [Accepted: 12/07/2020] [Indexed: 01/01/2023] Open
Abstract
Drug repurposing is a cost-effective means of targeting new therapies for cancer. We have examined the effects of the repurposed drugs, bezafibrate, medroxyprogesterone acetate and valproic acid on human osteosarcoma cells, i.e., SAOS2 and MG63 compared with their normal cell counterparts, i.e. mesenchymal stem/stromal cells (MSCs). Cell growth, viability and migration were measured by biochemical assay and live cell imaging, whilst levels of lipid-synthesising enzymes were measured by immunoblotting cell extracts. These drug treatments inhibited the growth and survival of SAOS2 and MG63 cells most effectively when used in combination (termed V-BAP). In contrast, V-BAP treated MSCs remained viable with only moderately reduced cell proliferation. V-BAP treatment also inhibited migratory cell phenotypes. MG63 and SAOS2 cells expressed much greater levels of fatty acid synthase and stearoyl CoA desaturase 1 than MSCs, but these elevated enzyme levels significantly decreased in the V-BAP treated osteosarcoma cells prior to cell death. Hence, we have identified a repurposed drug combination that selectively inhibits the growth and survival of human osteosarcoma cells in association with altered lipid metabolism without adversely affecting their non-transformed cell counterparts.
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Affiliation(s)
| | - Andrew D. Southam
- School of Biosciences, University of Birmingham, Birmingham B15 2TT, U.K
| | - Hannah L. MacKay
- Institute of Cancer and Genomic Studies, University of Birmingham, Birmingham B15 2TT, U.K
| | - Max A. Ellington
- University Centre Shrewsbury, Guildhall, Frankwell Quay, Shrewsbury SY3 8HQ, U.K
| | | | - Farhat L. Khanim
- School of Biomedical Sciences, University of Birmingham, Birmingham B15 2TT, U.K
| | | | - William E. Johnson
- University Centre Shrewsbury, Guildhall, Frankwell Quay, Shrewsbury SY3 8HQ, U.K
- Chester Medical School, Faculty of Medicine and Life Sciences, University of Chester, Chester CH1 4BJ, U.K
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Microemulsion systems: from the design and architecture to the building of a new delivery system for multiple-route drug delivery. Drug Deliv Transl Res 2020; 11:2108-2133. [PMID: 33164165 DOI: 10.1007/s13346-020-00872-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/15/2020] [Indexed: 02/04/2023]
Abstract
Poorly soluble active pharmaceutical ingredients (APIs) create major problems in drug dosage form formulation resulting in significant delays in drug pharmaceutical screening, impairing the drug dosage form production. Aiming to minimize the use of excipients for increasing drug apparent solubility and, as a result, its bioavailability, exploration of innovative approaches is an earnest need. Microemulsion is an alternative drug delivery system that emerged as a valuable tool to achieve safe formulations for insoluble compounds and to improve their biopharmaceutical properties and pharmacokinetics. This review aims to present the state of the art of microemulsion systems, bringing an overview about their origin and how they can be properly produced and thoroughly characterized by different approaches. Furthermore, comments on regulatory issues regarding stability assessment and toxicity evaluation are discussed. The review concludes with a current opinion on microemulsion systems. The overall objective of this work was to describe all the potentialities of microemulsion systems as a drug carrier for therapeutic purposes, highlighting the unique features of this nanotechnological platform. Display Image.
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20
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Hayal TB, DoĞan A, ŞİŞlİ HB, Kiratli B, Şahİn F. Ubiquitin-specific protease 7 downregulation suppresses breast cancer in vitro. ACTA ACUST UNITED AC 2020; 44:145-157. [PMID: 32922122 PMCID: PMC7478133 DOI: 10.3906/biy-1912-83] [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] [Indexed: 12/11/2022]
Abstract
Because breast cancer is complicated at the pathological, histological, clinical, and molecular levels, identification of new genetic targets against carcinogenic pathways is required to generate clinically relevant treatment options. In the current study, ubiquitin-specific protease 7 (USP7), which regulates various cellular pathways including Mdm2, p53, and NF–κB, was selected as a potential gene editing strategy for breast cancer in vitro. Anticancer activity of USP7 gene suppression has been evaluated through cell proliferation, gene expression, cell cycle, sphere dissemination, and cell migration analysis. Here, siRNA and shRNA strategies and an allosteric small-molecule inhibitor of USP7 were used to define potential anticancer activity against MCF7 and T47D human breast cancer cell lines. Both blockage of deubiquitination by p5091 and knockdown of USP7 reduced cell proliferation, cell migration, colony formation, and sphere dissemination for both MCF7 and T47D breast cancer cell lines. Restriction of USP7 activity strongly enhanced apoptotic gene expression and reduced metastatic ability of breast cancer cell lines. This study describes one potential molecular target for the suppression of breast cancer proliferation and metastasis. Identification of USP7 as a promising gene editing candidate might open up the possibility of new molecular drug research in targeting the ubiquitination pathway in cancer.
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Affiliation(s)
- Taha Bartu Hayal
- Yeditepe University, Department of Genetics and Bioengineering, Faculty of Engineering, İstanbul Turkey
| | - Ayşegül DoĞan
- Yeditepe University, Department of Genetics and Bioengineering, Faculty of Engineering, İstanbul Turkey
| | - Hatice Burcu ŞİŞlİ
- Yeditepe University, Department of Genetics and Bioengineering, Faculty of Engineering, İstanbul Turkey
| | - Binnur Kiratli
- Yeditepe University, Department of Genetics and Bioengineering, Faculty of Engineering, İstanbul Turkey
| | - Fikrettin Şahİn
- Yeditepe University, Department of Genetics and Bioengineering, Faculty of Engineering, İstanbul Turkey
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21
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Mazalovska M, Kouokam JC. Transiently Expressed Mistletoe Lectin II in Nicotiana benthamiana Demonstrates Anticancer Activity In Vitro. Molecules 2020; 25:E2562. [PMID: 32486427 PMCID: PMC7321061 DOI: 10.3390/molecules25112562] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 05/25/2020] [Accepted: 05/30/2020] [Indexed: 12/24/2022] Open
Abstract
Mistletoe (Viscum album) extracts have been used as alternative and complementary therapeutic preparations in multiple cancers for decades. Mistletoe lectins (ML-I, ML-II, and ML-III) are considered to be the main anticancer components of such preparations. In the present study, ML-II was transiently expressed in Nicotiana benthamiana using the pEAQ-HT expression system. Expression levels of up to 60 mg/kg of the infiltrated plant tissue were obtained, and a three-fold increase was achieved by adding the endoplasmic reticulum (ER) retention signal KDEL to the native ML-II sequence. The native protein containing His-tag and KDEL was purified by immobilized metal affinity chromatography (IMAC) and gel filtration. We found that the recombinant ML-II lectin was glycosylated and retained its carbohydrate-binding activity. In addition, we demonstrated that plant produced ML-II displayed anticancer activity in vitro, inhibiting non-small cell lung cancer H460 and A549 cells with EC50 values of 4 and 3.5 µg/mL, respectively. Annexin V-448A and PI double staining revealed that cell cytotoxicity occurred via apoptosis induction. These results indicate that ML-II transiently expressed in N. benthamiana plants is a promising candidate as an anticancer agent, although further optimization of production and purification methods is required to enable further in vitro testing, as well as in vivo assays.
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Affiliation(s)
- Milena Mazalovska
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40202, USA;
- Center for Predictive Medicine, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - J. Calvin Kouokam
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40202, USA;
- Center for Predictive Medicine, University of Louisville School of Medicine, Louisville, KY 40202, USA
- James Graham Brown Cancer Center, University of Louisville School of Medicine, Louisville, KY 40202, USA
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Lungu-Mitea S, Lundqvist J. Potentials and pitfalls of transient in vitro reporter bioassays: interference by vector geometry and cytotoxicity in recombinant zebrafish cell lines. Arch Toxicol 2020; 94:2769-2784. [PMID: 32447522 PMCID: PMC7395025 DOI: 10.1007/s00204-020-02783-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 05/07/2020] [Indexed: 12/03/2022]
Abstract
The water framework directive re-evaluation proposes the integration of effect-based tools, increasing the need for alternative methods. Especially within aquatic toxicology, coverage of specific toxicity pathways is scarce, and most applications are based on mammalian or bacterial models, not reflecting realistic exposure scenarios. The use of transient reporter gene assays in cells from organisms of interest could be a quick and inexpensive solution. However, interference with cellular homeostasis may impact the system beyond the function of the manipulated gene and thus lead to non-specific results. We describe how varying vector geometry and different regulatory gene elements on plasmids used for transfection in zebrafish hepatocytes and embryonic fibroblasts may lead up to a tenfold difference in potency. Cells were transiently co-transfected with an Nrf2-responsive Firefly luciferase reporter plasmid and eight different Renilla luciferase normalization plasmids. Transfected cells were exposed to two different regimes (0.1–100 µM and 7.8–250 µM) of the oxidative stress-inducing compounds, sulforaphane, tertbutylhydroquinone, and metazachlor. Nrf2 activity was measured in dual-luciferase assays. In parallel, cytotoxicity was assessed for different endpoints (energy metabolism, protein amount, membrane stability, and cell proliferation) in non-transfected cells and cells co-transfected with constructs of increasing size, to be used for normalization. Transfected cells were more susceptible to cytotoxicity in a vector size-dependent manner. Conclusively, we report that vector geometries (size, backbones, gene-regulatory units), cell line (tissue origin), applied transfection methods, and signal normalization may alter the sensitivity of reporter bioassays in a synergistic manner. Further, we propose that thorough bioassay design is needed to ensure reliability and regulatory acceptance.
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Affiliation(s)
- Sebastian Lungu-Mitea
- Department of Biomedicine and Veterinary Public Health, Swedish University of Agricultural Sciences, Box 7028, SE-750 07, Uppsala, Sweden.
| | - Johan Lundqvist
- Department of Biomedicine and Veterinary Public Health, Swedish University of Agricultural Sciences, Box 7028, SE-750 07, Uppsala, Sweden
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23
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Biram A, Shulman Z. Evaluation of B Cell Proliferation in vivo by EdU Incorporation Assay. Bio Protoc 2020; 10:e3602. [PMID: 33659568 DOI: 10.21769/bioprotoc.3602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 03/22/2020] [Accepted: 03/23/2020] [Indexed: 11/02/2022] Open
Abstract
Generation of antibodies is crucial for establishing enduring protection from invading pathogens, as well as for maintaining homeostasis with commensal bacteria at mucosal surfaces. Chronic exposure to microbiota- and dietary- derived antigens results in continuous production of antibody producing cells within the Peyer's patch germinal center structures. Recently, we have shown that B cells responding to gut-derived antigens colonize the subepithelial dome (SED) in Peyer's patches and rapidly proliferate independently of their relative BCR affinity. To evaluate B cell proliferation within different niches in Peyer's patches, we applied in vivo EdU incorporation assay as described in this protocol.
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Affiliation(s)
- Adi Biram
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Ziv Shulman
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
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24
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Tatar AS, Jurj A, Tomuleasa C, Florea A, Berindan-Neagoe I, Cialla-May D, Popp J, Astilean S, Boca S. CD19-targeted, Raman tagged gold nanourchins as theranostic agents against acute lymphoblastic leukemia. Colloids Surf B Biointerfaces 2019; 184:110478. [PMID: 31541890 DOI: 10.1016/j.colsurfb.2019.110478] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/15/2019] [Accepted: 08/29/2019] [Indexed: 10/26/2022]
Abstract
The incidence of Acute Lymphoblastic Leukemia (ALL) is increasing globally, and it is being clinically addressed by chemotherapy, followed by immunotherapy and stem cell transplantation, all with potential life-threatening toxicities. In the need for more effective therapeutics, newly developed disease-targeted nanocompounds can thus hold real potential. In this paper, we propose a novel nanoparticle-based immunotherapeutic agent against ALL, consisting of antiCD19 antibody-conjugated, polyethylene glycol (PEG)-biocompatibilized, and Nile Blue (NB) Raman reporter-tagged gold nanoparticles of urchin-like shape (GNUs), that have a plasmonic response in the Near Infrared (NIR) spectral range. Transmission electron microscopy (TEM) images of particle-incubated CD19-positive (CD19(+)) CCRF-SB cells show that the antiCD19-PEG-NB-GNU nanocomplex is able to recognize the CD19 B-cell-specific antigen, which is a prerequisite for targeted therapy. The therapeutic effect of the particles is confirmed by cell counting, combined with cell cycle analysis by flow cytometry and MTS assay, which additionally offer insights into their mechanisms of action. Specifically, antiCD19-PEG-NB-GNUs proved superior cytotoxic effect against CCRF-SB cells when compared with the free antibody, by reducing the overall viability below 18% after 7 days treatment at a particle-bound antibody concentration of 0.17 ng/μl. Moreover, by combining their remarkable plasmonic properties with the possibility of Raman tagging, the proposed nanoparticles can also serve as spectroscopic imaging agents inside living cells, which validates their theranostic potential in the field of hematological oncology.
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Affiliation(s)
- Andra-Sorina Tatar
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, T. Laurian 42, 400271 Cluj-Napoca, Romania; Faculty of Physics, Babes-Bolyai University, Kogalniceanu 1, 400084 Cluj-Napoca, Romania
| | - Ancuta Jurj
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Marinescu Street 23, 400337 Cluj-Napoca, Romania
| | - Ciprian Tomuleasa
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Marinescu Street 23, 400337 Cluj-Napoca, Romania; Department of Hematology, Oncologic Institute Prof. Dr. Ion Chiricuta, Republicii Street 34-36, 400015 Cluj-Napoca, Romania
| | - Adrian Florea
- Department of Cell and Molecular Biology, Iuliu Hatieganu University of Medicine and Pharmacy, Pasteur Street 6, 400349 Cluj-Napoca, Romania
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Marinescu Street 23, 400337 Cluj-Napoca, Romania
| | - Dana Cialla-May
- Leibniz Institute of Photonic Technology, Jena (a member of Leibniz Health Technologies), Albert-Einstein-Str 9, 07745 Jena, Germany
| | - Juergen Popp
- Leibniz Institute of Photonic Technology, Jena (a member of Leibniz Health Technologies), Albert-Einstein-Str 9, 07745 Jena, Germany; Friedrich-Schiller-University, Institute of Physical Chemistry and Abbe Center of Photonics, Helmholtzweg 4, 07743 Jena, Germany
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, T. Laurian 42, 400271 Cluj-Napoca, Romania; Faculty of Physics, Babes-Bolyai University, Kogalniceanu 1, 400084 Cluj-Napoca, Romania
| | - Sanda Boca
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, T. Laurian 42, 400271 Cluj-Napoca, Romania.
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25
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Labouta HI, Asgarian N, Rinker K, Cramb DT. Meta-Analysis of Nanoparticle Cytotoxicity via Data-Mining the Literature. ACS NANO 2019; 13:1583-1594. [PMID: 30689359 DOI: 10.1021/acsnano.8b07562] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Developing predictive modeling frameworks of potential cytotoxicity of engineered nanoparticles is critical for environmental and health risk analysis. The complexity and the heterogeneity of available data on potential risks of nanoparticles, in addition to interdependency of relevant influential attributes, makes it challenging to develop a generalization of nanoparticle toxicity behavior. Lack of systematic approaches to investigate these risks further adds uncertainties and variability to the body of literature and limits generalizability of existing studies. Here, we developed a rigorous approach for assembling published evidence on cytotoxicity of several organic and inorganic nanoparticles and unraveled hidden relationships that were not targeted in the original publications. We used a machine learning approach that employs decision trees together with feature selection algorithms ( e.g., Gain ratio) to analyze a set of published nanoparticle cytotoxicity sample data (2896 samples). The specific studies were selected because they specified nanoparticle-, cell-, and screening method-related attributes. The resultant decision-tree classifiers are sufficiently simple, accurate, and with high prediction power and should be widely applicable to a spectrum of nanoparticle cytotoxicity settings. Among several influential attributes, we show that the cytotoxicity of nanoparticles is primarily predicted from the nanoparticle material chemistry, followed by nanoparticle concentration and size, cell type, and cytotoxicity screening indicator. Overall, our study indicates that following rigorous and transparent methodological experimental approaches, in parallel to continuous addition to this data set developed using our approach, will offer higher predictive power and accuracy and uncover hidden relationships. Results obtained in this study help focus future studies to develop nanoparticles that are safe by design.
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Affiliation(s)
- Hagar I Labouta
- Department of Chemistry, Faculty of Science , University of Calgary , Calgary , Alberta T2N 1N4 , Canada
- College of Pharmacy, Rady Faculty of Health Sciences , University of Manitoba , Winnipeg , Manitoba R3E 0T5 , Canada
- Biomedical Engineering , University of Calgary , Calgary , Alberta T2N 1N4 , Canada
- Department of Pharmaceutics, Faculty of Pharmacy , Alexandria University , Alexandria , 21521 , Egypt
| | - Nasimeh Asgarian
- Department of Chemistry, Faculty of Science , University of Calgary , Calgary , Alberta T2N 1N4 , Canada
| | - Kristina Rinker
- Biomedical Engineering , University of Calgary , Calgary , Alberta T2N 1N4 , Canada
- Department of Chemical and Petroleum Engineering , University of Calgary , Calgary , Alberta T2N 1N4 , Canada
- Department of Physiology and Pharmacology, Cumming School of Medicine , University of Calgary , Calgary , Alberta T2N 1N4 , Canada
| | - David T Cramb
- Department of Chemistry, Faculty of Science , University of Calgary , Calgary , Alberta T2N 1N4 , Canada
- Department of Physiology and Pharmacology, Cumming School of Medicine , University of Calgary , Calgary , Alberta T2N 1N4 , Canada
- Department of Chemistry and Biology, Faculty of Science , Ryerson University , Toronto , Ontario M5B 2K3 , Canada
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26
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Juráňová J. Illuminating the cellular and molecular mechanism of the potential toxicity of methacrylate monomers used in biomaterials. Drug Chem Toxicol 2019; 43:266-278. [DOI: 10.1080/01480545.2018.1488860] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Jana Juráňová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hněvotínská 3, Olomouc, Czech Republic
- Faculty of Medicine and Dentistry, Institute of Molecular and Translational Medicine, Palacky University, Hněvotínská 5, Olomouc, Czech Republic
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27
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Chiang CT, Demetriou AN, Ung N, Choudhury N, Ghaffarian K, Ruderman DL, Mumenthaler SM. mTORC2 contributes to the metabolic reprogramming in EGFR tyrosine-kinase inhibitor resistant cells in non-small cell lung cancer. Cancer Lett 2018; 434:152-159. [PMID: 30036610 PMCID: PMC7443389 DOI: 10.1016/j.canlet.2018.07.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/17/2018] [Accepted: 07/17/2018] [Indexed: 12/12/2022]
Abstract
Non-small cell lung cancer (NSCLC) patients with activating EGFR mutations are often successfully treated with EGFR tyrosine kinase inhibitor (TKI) such as erlotinib; however, treatment resistance inevitably occurs. Given tumor metabolism of glucose and therapeutic response are intimately linked, we explored the metabolic differences between isogenic erlotinib-sensitive and -resistant NSCLC cell lines. We discovered that the growth of erlotinib-resistant cells is more sensitive to glucose deprivation. Seahorse metabolic assay revealed erlotinib-resistant cells have lower spare respiratory capacity (SRC), an indicator of metabolic flexibility, compared to erlotinib-sensitive cells. Additionally, we found downstream components of mTORC2 signaling to be phosphorylated in erlotinib-resistant cells. Knockdown of an mTORC2 component, Rictor, enhanced the SRC and rescued the growth rate of erlotinib-resistant cells during glucose deprivation. Among NSCLCs with activating EGFR mutations, gene sets involved in glucose metabolism were enriched in patients with high expression of p-NDGR1, a readout of mTORC2 activity. Furthermore, overall survival was negatively correlated with p-NDRG1. Our work uncovers a link between mTORC2 and metabolic reprogramming in EGFR TKI-resistant cells and highlights the significance of mTORC2 in the progression of EGFR-mutated NSCLC.
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Affiliation(s)
- Chun-Te Chiang
- Lawrence J. Ellison Institute for Transformative Medicine of USC, University of Southern California, Los Angeles, CA, USA
| | - Alexandra N Demetriou
- Lawrence J. Ellison Institute for Transformative Medicine of USC, University of Southern California, Los Angeles, CA, USA
| | - Nolan Ung
- Lawrence J. Ellison Institute for Transformative Medicine of USC, University of Southern California, Los Angeles, CA, USA
| | - Niharika Choudhury
- Lawrence J. Ellison Institute for Transformative Medicine of USC, University of Southern California, Los Angeles, CA, USA
| | - Kimya Ghaffarian
- Lawrence J. Ellison Institute for Transformative Medicine of USC, University of Southern California, Los Angeles, CA, USA
| | - Daniel L Ruderman
- Lawrence J. Ellison Institute for Transformative Medicine of USC, University of Southern California, Los Angeles, CA, USA
| | - Shannon M Mumenthaler
- Lawrence J. Ellison Institute for Transformative Medicine of USC, University of Southern California, Los Angeles, CA, USA.
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28
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Allen BJ. A comparative evaluation of Ac225 vs Bi213 as therapeutic radioisotopes for targeted alpha therapy for cancer. AUSTRALASIAN PHYSICAL & ENGINEERING SCIENCES IN MEDICINE 2017; 40:369-376. [PMID: 28342027 DOI: 10.1007/s13246-017-0534-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 02/08/2017] [Indexed: 10/19/2022]
Abstract
The Ac225:Bi213 generator is the mainstay for preclinical and clinical studies of targeted alpha therapy for cancer. Both Ac225 (four alpha decays) and Bi213 (one alpha decay) are being used to label targeting vectors to form the alpha immunoconjugate for cancer therapy. This paper considers the radiobiological and economic aspects of Ac225 vs Bi213 as the preferred radioisotope for preclinical and clinical TAT. The in vitro and in vivo evidence and the role of DNA repair processes is examined. The maximum tolerance dose and therapeutic gain are endpoints for comparison. Ac225 has the higher therapeutic gain, when normalised to equal alpha production. However, the slow repair of double strand breaks reduces this advantage. Comparisons are made for the specific energy deposition in targeted and non-targeted cells, for endothelial cells by direct or indirect targeting, the need for sparing agents to save critical organs and cost considerations for preclinical and clinical trials and clinical use. Overall, Ac225 is found to have the better or equal performance to Bi213 at a much lower cost.
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Affiliation(s)
- Barry J Allen
- Faculty of Medicine, University Western Sydney, Sydney, NSW, Australia.
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29
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Gibson JN, Beesetty P, Sulentic C, Kozak JA. Rapid Quantification of Mitogen-induced Blastogenesis in T Lymphocytes for Identifying Immunomodulatory Drugs. J Vis Exp 2016. [PMID: 28060354 PMCID: PMC5226628 DOI: 10.3791/55212] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Lymphocyte proliferation in response to antigenic or mitogenic stimulation is a readily quantifiable phenomenon useful for testing immunomodulatory (i.e., immunosuppressive or immunostimulatory) chemical compounds and biologics. One of the earliest steps during mitogenesis is cell enlargement or blastogenic transformation, whereupon the cell volume increases before division. It is usually detectable in the first several hours of T-lymphocyte stimulation. Here, we describe a rapid method to quantify blastogenesis in T lymphocytes isolated from mouse spleens and human peripheral blood mononuclear cells (PBMCs) using an automated cell counter. Various commonly used proliferation assays for the most part are laborious and only reflect the overall population effect rather than individual cellular effects within a population. In contrast, the presented automated cell counter assay provides rapid, direct, and precise measurements of cell diameters that can be used for assessing the effectiveness of various mitogens and immunomodulatory drugs in vitro.
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Affiliation(s)
- Jennifer N Gibson
- Department of Neuroscience, Cell Biology and Physiology, Boonshoft School of Medicine, Wright State University
| | - Pavani Beesetty
- Department of Neuroscience, Cell Biology and Physiology, Boonshoft School of Medicine, Wright State University
| | - Courtney Sulentic
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University
| | - J Ashot Kozak
- Department of Neuroscience, Cell Biology and Physiology, Boonshoft School of Medicine, Wright State University;
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30
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Popova AA, Depew C, Permana KM, Trubitsyn A, Peravali R, Ordiano JÁG, Reischl M, Levkin PA. Evaluation of the Droplet-Microarray Platform for High-Throughput Screening of Suspension Cells. SLAS Technol 2016; 22:163-175. [PMID: 28095175 DOI: 10.1177/2211068216677204] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Phenotypic cell-based high-throughput screenings play a central role in drug discovery and toxicology. The main tendency in cell screenings is the increase of the throughput and decrease of reaction volume in order to accelerate the experiments, reduce the costs, and enable screenings of rare cells. Conventionally, cell-based assays are performed in microtiter plates, which exist in 96- to 1536-wells formats and cannot be further miniaturized. In addition, performing screenings of suspension cells is associated with risk of losing cell content during the staining procedures and incompatibility with high-content microscopy. Here, we evaluate the Droplet-Microarray screening platform for culturing, screening, and imaging of suspension cells. We demonstrate pipetting-free cell seeding and proliferation of cells in individual droplets of 3-80 nL in volume. We developed a methodology to perform parallel treatment, staining, and fixation of suspension cells in individual droplets. Automated imaging of live suspension cells directly in the droplets combined with algorithms for pattern recognition for image analysis is demonstrated. We evaluated the developed methodology by performing a dose-response study with antineoplastic drugs. We believe that the DMA screening platform carries great potential to be adopted for broad spectrum of screenings of suspension cells.
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Affiliation(s)
- Anna A Popova
- 1 Karlsruhe Institute of Technology, Institute of Toxicology and Genetics, Eggenstein-Leopoldshafen, Germany
| | - Claire Depew
- 1 Karlsruhe Institute of Technology, Institute of Toxicology and Genetics, Eggenstein-Leopoldshafen, Germany
| | - Katya Manuella Permana
- 1 Karlsruhe Institute of Technology, Institute of Toxicology and Genetics, Eggenstein-Leopoldshafen, Germany
| | - Alexander Trubitsyn
- 1 Karlsruhe Institute of Technology, Institute of Toxicology and Genetics, Eggenstein-Leopoldshafen, Germany
| | - Ravindra Peravali
- 1 Karlsruhe Institute of Technology, Institute of Toxicology and Genetics, Eggenstein-Leopoldshafen, Germany
| | | | - Markus Reischl
- 2 Karlsruhe Institute of Technology, Institute for Applied Computer Science, Eggenstein-Leopoldshafen, Germany
| | - Pavel A Levkin
- 1 Karlsruhe Institute of Technology, Institute of Toxicology and Genetics, Eggenstein-Leopoldshafen, Germany.,3 Karlsruhe Institute of Technology, Institute of Organic Chemistry, Karlsruhe, Germany
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31
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Dual antimicrobial effects induced by hydrogel incorporated with UV-curable quaternary ammonium polyethyleneimine and AgNO3. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:494-504. [DOI: 10.1016/j.msec.2016.06.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 05/27/2016] [Accepted: 06/01/2016] [Indexed: 12/25/2022]
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32
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A high-content image-based method for quantitatively studying context-dependent cell population dynamics. Sci Rep 2016; 6:29752. [PMID: 27452732 PMCID: PMC4958988 DOI: 10.1038/srep29752] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 06/23/2016] [Indexed: 12/12/2022] Open
Abstract
Tumor progression results from a complex interplay between cellular heterogeneity, treatment response, microenvironment and heterocellular interactions. Existing approaches to characterize this interplay suffer from an inability to distinguish between multiple cell types, often lack environmental context, and are unable to perform multiplex phenotypic profiling of cell populations. Here we present a high-throughput platform for characterizing, with single-cell resolution, the dynamic phenotypic responses (i.e. morphology changes, proliferation, apoptosis) of heterogeneous cell populations both during standard growth and in response to multiple, co-occurring selective pressures. The speed of this platform enables a thorough investigation of the impacts of diverse selective pressures including genetic alterations, therapeutic interventions, heterocellular components and microenvironmental factors. The platform has been applied to both 2D and 3D culture systems and readily distinguishes between (1) cytotoxic versus cytostatic cellular responses; and (2) changes in morphological features over time and in response to perturbation. These important features can directly influence tumor evolution and clinical outcome. Our image-based approach provides a deeper insight into the cellular dynamics and heterogeneity of tumors (or other complex systems), with reduced reagents and time, offering advantages over traditional biological assays.
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33
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Bellat V, Lee HH, Vahdat L, Law B. Smart Nanotransformers with Unique Enzyme-Inducible Structural Changes and Drug Release Properties. Biomacromolecules 2016; 17:2040-9. [PMID: 27180972 DOI: 10.1021/acs.biomac.6b00227] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We previously reported a high aspect ratio peptide nanofiber that could be effectively delivered to tumors with minimal nonspecific uptake by other organs. The peptidic nature offers the design flexibility of smart formulation with unique responsiveness. Two new formulations that behave congruously as nanotransformers (NTFs) are reported herein. NTF1 and NTF2 could biomechanically remodel upon enzyme activation to generate a degradable and an aggregable effect, respectively, within the lysosomal compartment. These NTFs were further evaluated as carriers of mertansine (DM1), a microtubule inhibitor. DM1-loaded NTF1 could be degraded by cathepsin B (CathB) to release the same active metabolite, as previously described in the lysosomal degradation of antibody-DM1 conjugate. In contrast, CathB only partially digested DM1-loaded NTF2 and induced aggregate formation to become a storage reservoir with slow payload release property. The DM1-loaded NTF1 exhibited a comparable cytotoxicity to the free drug and was more effective than the NTF2 formulation in eradicating triple negative breast cancer. Our data suggested that biological transformers with distinct enzyme-induced structural changes and payload release profiles could be designed for the intracellular delivery of cytotoxic and imaging agents.
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Affiliation(s)
- Vanessa Bellat
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine , 413 East 69th Street, New York, New York 10021, United States
| | - Hyun Hee Lee
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine , 413 East 69th Street, New York, New York 10021, United States
| | - Linda Vahdat
- Department of Medicine, Weill Cornell Medicine , 425 East 61st Street, New York, New York 10065, United States
| | - Benedict Law
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine , 413 East 69th Street, New York, New York 10021, United States
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Xu DH, Zhang QZ, Zhang D. Two in vitro methods for screening potential parasiticides against Ichthyophthirius multifiliis using Tetrahymena thermophila. JOURNAL OF FISH DISEASES 2016; 39:285-294. [PMID: 25857201 DOI: 10.1111/jfd.12361] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 01/27/2015] [Accepted: 01/27/2015] [Indexed: 06/04/2023]
Abstract
Ichthyophthirius multifiliis (Ich) is a ciliate parasite that infects many species of freshwater fishes worldwide and causes heavy economic losses in aquaculture. Currently, parasiticides for controlling this parasite are limited, and few pond-practical chemical therapies exist. Hence, the search for new parasiticides is urgently needed. One challenge confronting the screening of potential parasiticides is the difficulty in raising enough parasite for efficacy testing as Ich is an obligate parasite. This study used species of Tetrahymena, Ich-related and cultivable ciliate protozoa, to evaluate two in vitro methods to test parasiticides. Plate counting and MTS assays (CellTiter 96® AQueous Non-Radioactive Cell Proliferation Assay) were used to compare lethal concentrations or median lethal concentrations (LC50) of copper sulphate, formalin and malachite green between T. thermophila and Ich theronts or between T. thermophila and Ich tomonts. The parasiticides that killed T. thermophila have been demonstrated to kill theronts or tomonts. These in vitro methods using T. thermophila can be used to screen novel parasiticides against Ich.
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Affiliation(s)
- D-H Xu
- Aquatic Animal Health Research Unit, U.S. Department of Agriculture, Agricultural Research Service, Auburn, AL, USA
| | - Q-Z Zhang
- Institute of Hydrobiology, Jinan University, Guangzhou, Guangdong, 510632, PR China
| | - D Zhang
- Aquatic Animal Health Research Unit, U.S. Department of Agriculture, Agricultural Research Service, Auburn, AL, USA
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Doxorubicin-loaded biodegradable self-assembly zein nanoparticle and its anti-cancer effect: Preparation, in vitro evaluation, and cellular uptake. Colloids Surf B Biointerfaces 2015; 140:324-331. [PMID: 26764113 DOI: 10.1016/j.colsurfb.2015.12.048] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 11/24/2015] [Accepted: 12/24/2015] [Indexed: 01/11/2023]
Abstract
Cancer is one top leading cause of the deaths worldwide. Various anticancer drugs, which can effectively kill cancer cells, have been developed in the last decade. However, the problem is still about the low therapeutic index of the drugs, which means that the effective dose of drugs will cause cytotoxicity to normal cells. A strategy based on drug nano-encapsulation is applied to achieve an effective anti-cancer therapy. In this study, we use zein, which is an amphiphilic protein, to make the anti-cancer drug nano-encapsulation. Doxorubicin (DOX), a popular anti-cancer drug, is selected as the core drug. The results show that DOX could be successfully encapsulated into zein to form spherical nanoparticles. The encapsulation efficiency and loading efficiency could reach as high as 90.06% and 15.01 mg/g, respectively. The cumulative release result showed a desired pH-responsible release behavior: DOX could be released faster in acidic buffer solutions (pH 5.0 and 6.5) than neutral one (pH 7.4). The effects of the nano-encapsulation on the anti-proliferation of HeLa cells were also examined. It indicated that, compared with free DOX, the DOX-loaded zein nanoparticles (DOX-zein-NPs) had a better effect on cancer cell killing at low DOX concentrations. We also investigated the cellular uptake of DOX-zein-NPs using confocal laser scanning microscopy (CLSM), flow cytometry, and transmission electron microscopy (TEM). And the endocytosis mechanism of DOX-zein-NPs entering into HeLa cells was studied using various endocytosis pathway inhibitors.
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Electrochemical evidence for asialoglycoprotein receptor – mediated hepatocyte adhesion and proliferation in three dimensional tissue engineering scaffolds. Anal Chim Acta 2015; 890:83-90. [DOI: 10.1016/j.aca.2015.06.057] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 04/30/2015] [Accepted: 06/30/2015] [Indexed: 11/18/2022]
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Abstract
One of the major challenges in the field of nucleic acid delivery is the design of delivery vehicles with attributes that render them safe as well as efficient in transfection. To this end, polycationic vectors have been intensely investigated with native polyethylenimines (PEIs) being the gold standard. PEIs are highly efficient transfectants, but depending on their architecture and size they induce cytotoxicity through different modes of cell death pathways. Here, we briefly review dynamic and integrated cell death processes and pathways, and discuss considerations in cell death assay design and their interpretation in relation to PEIs and PEI-based engineered vectors, which are also translatable for the design and studying the safety of other transfectants.
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Hall A, Wu LP, Parhamifar L, Moghimi SM. Differential Modulation of Cellular Bioenergetics by Poly(l-lysine)s of Different Molecular Weights. Biomacromolecules 2015; 16:2119-26. [DOI: 10.1021/acs.biomac.5b00533] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Arnaldur Hall
- Nanomedicine
Laboratory, Centre for Pharmaceutical Nanotechnology and Nanotoxicology,
Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark
| | - Lin-Ping Wu
- Nanomedicine
Laboratory, Centre for Pharmaceutical Nanotechnology and Nanotoxicology,
Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark
| | - Ladan Parhamifar
- Nanomedicine
Laboratory, Centre for Pharmaceutical Nanotechnology and Nanotoxicology,
Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark
| | - Seyed Moein Moghimi
- Nanomedicine
Laboratory, Centre for Pharmaceutical Nanotechnology and Nanotoxicology,
Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark
- NanoScience
Centre, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
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Shkumatov A, Thompson M, Choi KM, Sicard D, Baek K, Kim DH, Tschumperlin DJ, Prakash YS, Kong H. Matrix stiffness-modulated proliferation and secretory function of the airway smooth muscle cells. Am J Physiol Lung Cell Mol Physiol 2015; 308:L1125-35. [PMID: 25724668 DOI: 10.1152/ajplung.00154.2014] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 02/27/2015] [Indexed: 01/02/2023] Open
Abstract
Multiple pulmonary conditions are characterized by an abnormal misbalance between various tissue components, for example, an increase in the fibrous connective tissue and loss/increase in extracellular matrix proteins (ECM). Such tissue remodeling may adversely impact physiological function of airway smooth muscle cells (ASMCs) responsible for contraction of airways and release of a variety of bioactive molecules. However, few efforts have been made to understand the potentially significant impact of tissue remodeling on ASMCs. Therefore, this study reports how ASMCs respond to a change in mechanical stiffness of a matrix, to which ASMCs adhere because mechanical stiffness of the remodeled airways is often different from the physiological stiffness. Accordingly, using atomic force microscopy (AFM) measurements, we found that the elastic modulus of the mouse bronchus has an arithmetic mean of 23.1 ± 14 kPa (SD) (median 18.6 kPa). By culturing ASMCs on collagen-conjugated polyacrylamide hydrogels with controlled elastic moduli, we found that gels designed to be softer than average airway tissue significantly increased cellular secretion of vascular endothelial growth factor (VEGF). Conversely, gels stiffer than average airways stimulated cell proliferation, while reducing VEGF secretion and agonist-induced calcium responses of ASMCs. These dependencies of cellular activities on elastic modulus of the gel were correlated with changes in the expression of integrin-β1 and integrin-linked kinase (ILK). Overall, the results of this study demonstrate that changes in matrix mechanics alter cell proliferation, calcium signaling, and proangiogenic functions in ASMCs.
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Affiliation(s)
- Artem Shkumatov
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | | | - Kyoung M Choi
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
| | - Delphine Sicard
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
| | - Kwanghyun Baek
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Dong Hyun Kim
- Korea Institute of Industrial Technology, Ansan-si, South Korea
| | - Daniel J Tschumperlin
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
| | - Y S Prakash
- Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota
| | - Hyunjoon Kong
- Departments of Chemical and Biomolecular Engineering, Pathobiology, and Bioengineering, Institute of Genomic Biology, Univeristy of Illinois at Urbana-Champaign, Urbana, Illinois; and Deptartment of Chemical Engineering, Soongshil University, Seoul, Korea
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Wu LP, Ficker M, Christensen JB, Trohopoulos PN, Moghimi SM. Dendrimers in Medicine: Therapeutic Concepts and Pharmaceutical Challenges. Bioconjug Chem 2015; 26:1198-211. [PMID: 25654320 DOI: 10.1021/acs.bioconjchem.5b00031] [Citation(s) in RCA: 171] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Dendrimers are three-dimensional macromolecular structures originating from a central core molecule and surrounded by successive addition of branching layers (generation). These structures exhibit a high degree of molecular uniformity, narrow molecular weight distribution, tunable size and shape characteristics, as well as multivalency. Collectively, these physicochemical characteristics together with advancements in design of biodegradable backbones have conferred many applications to dendrimers in formulation science and nanopharmaceutical developments. These have included the use of dendrimers as pro-drugs and vehicles for solubilization, encapsulation, complexation, delivery, and site-specific targeting of small-molecule drugs, biopharmaceuticals, and contrast agents. We briefly review these advances, paying particular attention to attributes that make dendrimers versatile for drug formulation as well as challenging issues surrounding the future development of dendrimer-based medicines.
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Affiliation(s)
- Lin-Ping Wu
- †Centre for Pharmaceutical Nanotechnology and Nanotoxicology, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark
| | - Mario Ficker
- ‡Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark
| | - Jørn B Christensen
- ‡Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark
| | | | - Seyed Moein Moghimi
- †Centre for Pharmaceutical Nanotechnology and Nanotoxicology, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark.,∥NanoScience Centre, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
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Blockade of estrogen-stimulated proliferation by a constitutively-active prolactin receptor having lower expression in invasive ductal carcinoma. Cancer Lett 2014; 358:152-160. [PMID: 25527452 DOI: 10.1016/j.canlet.2014.12.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 12/11/2014] [Accepted: 12/12/2014] [Indexed: 11/22/2022]
Abstract
A comprehensive understanding of prolactin's (PRL's) role in breast cancer is complicated by disparate roles for alternatively-spliced PRL receptors (PRLR) and crosstalk between PRL and estrogen signaling. Among PRLRs, the short form 1b (SF1b) inhibits PRL-stimulated cell proliferation. In addition to ligand-dependent PRLRs, constitutively-active varieties, missing the S2 region of the extracellular domain (ΔS2), naturally occur. Expression analysis of the ΔS2 version of SF1b (ΔS2SF1b) showed higher expression in histologically-normal contiguous tissue versus invasive ductal carcinoma. To determine the function of ΔS2SF1b, a T47D breast cancer line with inducible expression was produced. Induction of ΔS2SF1b blocked estrogen-stimulated cell proliferation. Unlike intact SF1b, induction of ΔS2SF1b had no effect on PRL-mediated activation of Stat5a. However induction inhibited estrogen's stimulatory effects on serine-118 phosphorylation of estrogen receptor α, serine-473 phosphorylation of Akt, serine-9 phosphorylation of GSK3β, and c-myc expression. In addition, induction of ΔS2SF1b increased expression of the cell cycle-inhibiting protein, p21. Thus, increased expression of ΔS2SF1b, such as we demonstrate occurs with the selective PRLR modulator, S179D PRL, would create a physiological state in which estrogen-stimulated proliferation was inhibited, but differentiative responses to PRL were maintained.
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Grasso S, Tristante E, Saceda M, Carbonell P, Mayor-López L, Carballo-Santana M, Carrasco-García E, Rocamora-Reverte L, García-Morales P, Carballo F, Ferragut JA, Martínez-Lacaci I. Resistance to Selumetinib (AZD6244) in colorectal cancer cell lines is mediated by p70S6K and RPS6 activation. Neoplasia 2014; 16:845-60. [PMID: 25379021 PMCID: PMC4212257 DOI: 10.1016/j.neo.2014.08.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 08/18/2014] [Accepted: 08/20/2014] [Indexed: 12/29/2022] Open
Abstract
Selumetinib (AZD6244, ARRY-142886) is a MEK1/2 inhibitor that has gained interest as an anti-tumour agent. We have determined the degree of sensitivity/resistance to Selumetinib in a panel of colorectal cancer cell lines using cell proliferation and soft agar assays. Sensitive cell lines underwent G1 arrest, whereas Selumetinib had no effect on the cell cycle of resistant cells. Some of the resistant cell lines showed high levels of ERK1/2 phosphorylation in the absence of serum. Selumetinib inhibited phosphorylation of ERK1/2 and RSK and had no effect on AKT phosphorylation in both sensitive and resistant cells. Furthermore, mutations in KRAS, BRAF, or PIK3CA were not clearly associated with Selumetinib resistance. Surprisingly, Selumetinib was able to inhibit phosphorylation of p70 S6 kinase (p70S6K) and its downstream target ribosomal protein S6 (RPS6) in sensitive cell lines. However, p70S6K and RPS6 phosphorylation remained unaffected or even increased in resistant cells. Moreover, in some of the resistant cell lines p70S6K and RPS6 were phosphorylated in the absence of serum. Interestingly, colorectal primary cultures derived from tumours excised to patients exhibited the same behaviour than established cell lines. Pharmacological inhibition of p70S6K using the PI3K/mTOR inhibitor NVP-BEZ235, the specific mTOR inhibitor Rapamycin and the specific p70S6K inhibitor PF-4708671 potentiated Selumetinib effects in resistant cells. In addition, biological inhibition of p70S6K using siRNA rendered responsiveness to Selumetinib in resistant cell lines. Furthermore, combination of p70S6K silencing and PF-47086714 was even more effective. We can conclude that p70S6K and its downstream target RPS6 are potential biomarkers of resistance to Selumetinib in colorectal cancer.
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Affiliation(s)
- Silvina Grasso
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, 03202 Elche (Alicante), Spain
| | - Elena Tristante
- Unidad AECC de Investigación Traslacional en Cáncer, Hospital Clínico Universitario Virgen de la Arrixaca, Instituto Murciano de Investigación Biosanitaria, 30120 Murcia, Spain
| | - Miguel Saceda
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, 03202 Elche (Alicante), Spain ; Unidad de Investigación, Hospital General Universitario de Elche, 03203 Elche (Alicante), Spain
| | - Pablo Carbonell
- Centro de Bioquímica y Genética Clínica, Hospital Clínico Universitario Virgen de la Arrixaca, 30120 Murcia, Spain
| | - Leticia Mayor-López
- Unidad AECC de Investigación Traslacional en Cáncer, Hospital Clínico Universitario Virgen de la Arrixaca, Instituto Murciano de Investigación Biosanitaria, 30120 Murcia, Spain
| | - Mar Carballo-Santana
- Unidad AECC de Investigación Traslacional en Cáncer, Hospital Clínico Universitario Virgen de la Arrixaca, Instituto Murciano de Investigación Biosanitaria, 30120 Murcia, Spain
| | - Estefanía Carrasco-García
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, 03202 Elche (Alicante), Spain
| | - Lourdes Rocamora-Reverte
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, 03202 Elche (Alicante), Spain
| | - Pilar García-Morales
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, 03202 Elche (Alicante), Spain ; Unidad de Investigación, Hospital General Universitario de Elche, 03203 Elche (Alicante), Spain
| | - Fernando Carballo
- Unidad AECC de Investigación Traslacional en Cáncer, Hospital Clínico Universitario Virgen de la Arrixaca, Instituto Murciano de Investigación Biosanitaria, 30120 Murcia, Spain ; Servicio de Gastroenterología, Hospital Clínico Universitario Virgen de la Arrixaca, 30120 Murcia, Spain
| | - José A Ferragut
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, 03202 Elche (Alicante), Spain
| | - Isabel Martínez-Lacaci
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, 03202 Elche (Alicante), Spain ; Unidad AECC de Investigación Traslacional en Cáncer, Hospital Clínico Universitario Virgen de la Arrixaca, Instituto Murciano de Investigación Biosanitaria, 30120 Murcia, Spain
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Prokofieva DS, Goncharov NG. The effects of biogenic and abiogenic disulphides on endothelial cells in culture: Comparison of three methods of viability assessment. ACTA ACUST UNITED AC 2014. [DOI: 10.1134/s1990519x1405006x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Tan D, Chen KE, Deng C, Tang P, Huang J, Mansour T, Luben RA, Walker AM. An N-terminal splice variant of human Stat5a that interacts with different transcription factors is the dominant form expressed in invasive ductal carcinoma. Cancer Lett 2013; 346:148-57. [PMID: 24384092 DOI: 10.1016/j.canlet.2013.12.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 12/04/2013] [Accepted: 12/20/2013] [Indexed: 01/02/2023]
Abstract
We have identified a new variant of human Stat5a, found at higher ratios to full-length Stat5a in invasive ductal carcinoma versus contiguous normal tissue. The variant, missing exon 5, inhibits p21 and Bax production and increases cell number. After prolactin stimulation, only full-length Stat5a interacts with the vitamin D and retinoid X receptors, whereas only Δ5 Stat5a interacts with activating protein 1-2 and specificity protein 1. Prolactin also oppositely regulates interaction of the two Stat5a forms with β-catenin. We propose that a change in splicing leading to upregulation of this new isoform is a pathogenic aspect of invasive ductal carcinoma.
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Affiliation(s)
- Dunyong Tan
- Division of Biomedical Sciences, University of California, Riverside, Riverside, CA 92521-0121, United States; College of Medicine/Institute of Medical Sciences, Jishou University, Jishou 416000, Hunan, PR China
| | - KuanHui E Chen
- Division of Biomedical Sciences, University of California, Riverside, Riverside, CA 92521-0121, United States
| | - Changhui Deng
- Division of Biomedical Sciences, University of California, Riverside, Riverside, CA 92521-0121, United States; Department of Biochemistry, University of California, Riverside, Riverside, CA 92521-0121, United States
| | - Peizhi Tang
- People's Hospital of Xiangxi Autonomous Region, Jishou University, Jishou 416000, Hunan, PR China
| | - Jianjun Huang
- People's Hospital of Xiangxi Autonomous Region, Jishou University, Jishou 416000, Hunan, PR China
| | - Trina Mansour
- Division of Biomedical Sciences, University of California, Riverside, Riverside, CA 92521-0121, United States
| | - Richard A Luben
- Division of Biomedical Sciences, University of California, Riverside, Riverside, CA 92521-0121, United States; Department of Biochemistry, University of California, Riverside, Riverside, CA 92521-0121, United States
| | - Ameae M Walker
- Division of Biomedical Sciences, University of California, Riverside, Riverside, CA 92521-0121, United States.
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Yu W, Wang L, Wang Y, Xu X, Zou P, Gong M, Zheng J, You J, Wang H, Mei F, Pei F. A novel tumor metastasis suppressor gene LASS2/TMSG1 interacts with vacuolar ATPase through its homeodomain. J Cell Biochem 2013; 114:570-83. [PMID: 22991218 DOI: 10.1002/jcb.24400] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2012] [Accepted: 09/06/2012] [Indexed: 11/12/2022]
Abstract
LASS2/TMSG1 was a novel tumor metastasis suppressor gene, which was first cloned by our laboratory from non-metastatic and metastatic cancer cell variants of human prostate carcinoma PC-3M using mRNA differential display in 1999. LASS2/TMSG1 could interact with the C subunit of vacuolar ATPase (V-ATPase, ATP6V0C) and regulate V-ATPase activity. In an attempt to provide molecular mechanism of the interaction between LASS2/TMSG1 and V-ATPase, we constructed four variant transfectants containing different functional domain of LASS2/TMSG1 and stably transfected the variants to human prostate cancer cell line PC-3M-1E8 cell with high metastatic potential. Results showed that there were no obvious differences of V-ATPase expression among different transfected cells and the control. However, V-ATPase activity and intracellular pH was significantly higher in the variant transfectants with Homeodomain of LASS2/TMSG1 than that in the control using the pH-dependent fluorescence probe BECEF/AM. Immunoprecipitation, immunofluorescence and immuno-electron microscope alone or in combination demonstrated the direct interaction of Homeodomain of LASS2/TMSG1 and ATP6V0C. Loss of Homeodomain markedly enhanced the proliferation ability but weakened the apoptotic effect of LASS2/TMSG1 in PC-3M-1E8 cells. These lines of results for the first time contribute to the conclusion that LASS2/TMSG1 could regulate V-ATPase activity and intracellular pH through the direct interaction of its Homeodomain and the C subunit of V-ATPase. Their interaction could play important roles in the apoptosis of tumor cells.
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Affiliation(s)
- Wenjuan Yu
- Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, PR China
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Roque DM, Bellone S, Buza N, Romani C, Cocco E, Bignotti E, Ravaggi A, Rutherford TJ, Schwartz PE, Pecorelli S, Santin AD. Class III β-tubulin overexpression in ovarian clear cell and serous carcinoma as a maker for poor overall survival after platinum/taxane chemotherapy and sensitivity to patupilone. Am J Obstet Gynecol 2013; 209:62.e1-9. [PMID: 23583215 DOI: 10.1016/j.ajog.2013.04.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 03/16/2013] [Accepted: 04/02/2013] [Indexed: 12/26/2022]
Abstract
OBJECTIVE Clear cell carcinoma of the ovary is a distinct subtype of epithelial cancer associated with chemoresistance and poor outcome compared with serous papillary carcinomas. Resistance to paclitaxel has been linked to serous papillary overexpression of class III β-tubulin in several human cancers but inadequately characterized among clear cell carcinoma of the ovary. Chemoresistance has also been variably linked to the drug efflux pump p-glycoprotein. Epothilones are microtubule-stabilizing agents with putative activity in paclitaxel-resistant malignancies. In this study, we clarify the relationship between class III β-tubulin and p-glycoprotein expression in clear cell carcinoma of the ovary, clinical outcome, and in vitro responsiveness to patupilone and paclitaxel. STUDY DESIGN Class III β-tubulin and p-glycoprotein were quantified by real time polymerase chain reaction in 61 fresh-frozen tissue samples and 11 cell lines. Expression by polymerase chain reaction was correlated with immunohistochemistry and overall survival. IC50 was determined using viability/metabolic assays. Impact of class III β-tubulin down-regulation on IC50 was assessed with small interfering RNAs. RESULTS Clear cell carcinoma of the ovary overexpressed class III β-tubulin and p-glycoprotein relative to serous papillary carcinomas carcinomas in fresh-frozen tissues and cell lines. Class III β-tubulin immunohistochemistry reflected real time polymerase chain reaction results and overexpression stratified patients by overall survival. P-glycoprotein correlated with in vitro paclitaxel resistance, but not clinical outcome. Clear cell carcinoma of the ovary were exquisitely sensitive to patupilone in a manner that correlated with class III β-tubulin expression. CONCLUSION Class III β-tubulin overexpression in clear cell carcinoma of the ovary discriminates poor prognosis, serves as a marker for sensitivity to patupilone, and may contribute to paclitaxel resistance. Immunohistochemistry reliably identifies tumors with overexpression of class III β-tubulin, and accordingly a subset of individuals likely to respond to patupilone.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B, Member 1/metabolism
- Antineoplastic Agents/pharmacology
- Cell Line
- Cystadenocarcinoma, Serous/drug therapy
- Cystadenocarcinoma, Serous/metabolism
- Cystadenocarcinoma, Serous/mortality
- Dose-Response Relationship, Drug
- Down-Regulation
- Drug Resistance, Neoplasm/drug effects
- Epothilones/pharmacology
- Female
- Humans
- Immunohistochemistry
- Kaplan-Meier Estimate
- Microtubules/drug effects
- Neoplasms, Glandular and Epithelial/drug therapy
- Neoplasms, Glandular and Epithelial/metabolism
- Neoplasms, Glandular and Epithelial/mortality
- Ovarian Neoplasms/drug therapy
- Ovarian Neoplasms/metabolism
- Ovarian Neoplasms/mortality
- Paclitaxel/pharmacology
- Prognosis
- Real-Time Polymerase Chain Reaction
- Taxoids/pharmacology
- Tubulin/metabolism
- Tubulin Modulators/pharmacology
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Affiliation(s)
- Dana M Roque
- Division of Gynecologic Oncology, Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT
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47
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Panngom K, Baik KY, Nam MK, Han JH, Rhim H, Choi EH. Preferential killing of human lung cancer cell lines with mitochondrial dysfunction by nonthermal dielectric barrier discharge plasma. Cell Death Dis 2013; 4:e642. [PMID: 23703387 PMCID: PMC3674375 DOI: 10.1038/cddis.2013.168] [Citation(s) in RCA: 161] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The distinctive cellular and mitochondrial dysfunctions of two human lung cancer cell lines (H460 and HCC1588) from two human lung normal cell lines (MRC5 and L132) have been studied by dielectric barrier discharge (DBD) plasma treatment. This cytotoxicity is exposure time-dependent, which is strongly mediated by the large amount of H2O2 and NOx in culture media generated by DBD nonthermal plasma. It is found that the cell number of lung cancer cells has been reduced more than that of the lung normal cells. The mitochondrial vulnerability to reactive species in H460 may induce distinctively selective responses. Differential mitochondrial membrane potential decrease, mitochondrial enzymatic dysfunction, and mitochondrial morphological alteration are exhibited in two cell lines. These results suggest the nonthermal plasma treatment as an efficacious modality in lung cancer therapy.
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Affiliation(s)
- K Panngom
- Department of Plasma Bioscience and Display, Kwangwoon University, Seoul, Republic of Korea
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48
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Leone A, Lecci RM, Durante M, Piraino S. Extract from the zooxanthellate jellyfish Cotylorhiza tuberculata modulates gap junction intercellular communication in human cell cultures. Mar Drugs 2013; 11:1728-62. [PMID: 23697954 PMCID: PMC3707171 DOI: 10.3390/md11051728] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 04/24/2013] [Accepted: 04/25/2013] [Indexed: 12/13/2022] Open
Abstract
On a global scale, jellyfish populations in coastal marine ecosystems exhibit increasing trends of abundance. High-density outbreaks may directly or indirectly affect human economical and recreational activities, as well as public health. As the interest in biology of marine jellyfish grows, a number of jellyfish metabolites with healthy potential, such as anticancer or antioxidant activities, is increasingly reported. In this study, the Mediterranean “fried egg jellyfish” Cotylorhiza tuberculata (Macri, 1778) has been targeted in the search forputative valuable bioactive compounds. A medusa extract was obtained, fractionated, characterized by HPLC, GC-MS and SDS-PAGE and assayed for its biological activity on breast cancer cells (MCF-7) and human epidermal keratinocytes (HEKa). The composition of the jellyfish extract included photosynthetic pigments, valuable ω-3 and ω-6 fatty acids, and polypeptides derived either from jellyfish tissues and their algal symbionts. Extract fractions showed antioxidant activity and the ability to affect cell viability and intercellular communication mediated by gap junctions (GJIC) differentially in MCF-7and HEKa cells. A significantly higher cytotoxicity and GJIC enhancement in MCF-7 compared to HEKa cells was recorded. A putative action mechanism for the anticancer bioactivity through the modulation of GJIC has been hypothesized and its nutraceutical and pharmaceutical potential was discussed.
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Affiliation(s)
- Antonella Leone
- Institute of Sciences of Food Production, National Research Council, Unit of Lecce (CNR, ISPA), Via Prov.le Lecce-Monteroni, Lecce 73100, Italy; E-Mails: (R.M.L.); (M.D.)
- CoNISMa, National Interuniversity Consortium on Marine Sciences, Local Unit of Lecce, Via Prov.le Lecce-Monteroni, Lecce 73100, Italy; E-Mail:
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +39-0832-422-615; Fax: +39-0832-422-620
| | - Raffaella Marina Lecci
- Institute of Sciences of Food Production, National Research Council, Unit of Lecce (CNR, ISPA), Via Prov.le Lecce-Monteroni, Lecce 73100, Italy; E-Mails: (R.M.L.); (M.D.)
- CoNISMa, National Interuniversity Consortium on Marine Sciences, Local Unit of Lecce, Via Prov.le Lecce-Monteroni, Lecce 73100, Italy; E-Mail:
| | - Miriana Durante
- Institute of Sciences of Food Production, National Research Council, Unit of Lecce (CNR, ISPA), Via Prov.le Lecce-Monteroni, Lecce 73100, Italy; E-Mails: (R.M.L.); (M.D.)
| | - Stefano Piraino
- CoNISMa, National Interuniversity Consortium on Marine Sciences, Local Unit of Lecce, Via Prov.le Lecce-Monteroni, Lecce 73100, Italy; E-Mail:
- University of Salento, Via Prov.le Lecce-Monteroni, Lecce 73100, Italy
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49
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Cell diameter measurements obtained with a handheld cell counter could be used as a surrogate marker of G2/M arrest and apoptosis in colon cancer cell lines exposed to SN-38. Biochem Biophys Res Commun 2013; 434:753-9. [PMID: 23583407 DOI: 10.1016/j.bbrc.2013.03.128] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Accepted: 03/30/2013] [Indexed: 11/20/2022]
Abstract
In vitro assessment of chemosensitivity are important for experiments evaluating cancer therapies. The Scepter 2.0 cell counter, an automated handheld device based on the Coulter principle of impedance-based particle detection, enables the accurate discrimination of cell populations according to cell size and volume. In this study, the effects of SN-38, the active metabolite of irinotecan, on the colon cancer cell lines HCT116 and HT29 were evaluated using this device. The cell count data obtained with the Scepter counter were compared with those obtained with the (3)H-thymidine uptake assay, which has been used to measure cell proliferation in many previous studies. In addition, we examined whether the changes in the size distributions of these cells reflected alterations in the frequency of cell cycle arrest and/or apoptosis induced by SN-38 treatment. In our experiments using the Scepter 2.0 cell counter, the cell counts were demonstrated to be accurate and reproducible measure and alterations of cell diameter reflected G2/M cell cycle arrest and apoptosis. Our data show that easy-to-use cell counting tools can be utilized to evaluate the cell-killing effects of novel treatments on cancer cells in vitro.
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50
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Du H, Li J, Moe B, McGuigan CF, Shen S, Li XF. Cytotoxicity and oxidative damage induced by halobenzoquinones to T24 bladder cancer cells. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:2823-30. [PMID: 23368424 DOI: 10.1021/es303762p] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Four halobenzoquinones (HBQs), 2,6-dichloro-1,4-benzoquinone (DCBQ), 2,6-dichloro-3-methyl-1,4-benzoquinone (DCMBQ), 2,3,6-trichloro-1,4-benzoquinone (TCBQ), and 2,6-dibromobenzoquinone (DBBQ), have been recently confirmed as disinfection byproducts (DBPs) in drinking water; however, their toxicological information is scarce. Here, we report that HBQs are cytotoxic to T24 bladder cancer cells and that the IC50 values are 95 μM for DCBQ, 110 μM for DCMBQ, 151 μM for TCBQ, and 142 μM for DBBQ, after a 24-h exposure. The antioxidant N-acetyl-l-cysteine (NAC) significantly reduces the cytotoxicity induced by the four HBQs, supporting the hypothesis that oxidative stress contributes to the cytotoxicity of HBQs. To further explore the oxidative mechanisms of cytotoxicity, we examined HBQ-induced production of reactive oxygen species (ROS) in T24 cells, and measured 8-hydroxydeoxyguanosine (8-OHdG), protein carbonyls, and malondialdehyde (MDA) adducts of proteins, markers of oxidative damage to DNA, proteins, and lipids, respectively. All four HBQs generated intracellular ROS in T24 cells in a concentration-dependent manner. HBQs also produced 8-OHdG in genomic DNA of T24 cells, with the highest levels of 8-OHdG induced by DCMBQ. Protein carbonylation was significantly increased in T24 cells that were incubated with each of the four HBQs for 24 h. However, MDA adduct formation, a marker of lipid peroxidation, was not affected by any of the four HBQs tested. These results suggest that the ROS-induced oxidative damage to DNA and protein carbonylation are involved in the observed toxicity of HBQs in T24 cells.
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Affiliation(s)
- Haiying Du
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, 10-102 Clinical Sciences Building, Edmonton, Alberta, Canada
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