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Marques MPM, de Carvalho ALMB, Martins CB, Silva JD, Sarter M, García Sakai V, Stewart JR, de Carvalho LAEB. Cellular dynamics as a marker of normal-to-cancer transition in human cells. Sci Rep 2023; 13:21079. [PMID: 38030663 PMCID: PMC10687084 DOI: 10.1038/s41598-023-47649-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 11/16/2023] [Indexed: 12/01/2023] Open
Abstract
Normal-to-cancer (NTC) transition is known to be closely associated to cell´s biomechanical properties which are dependent on the dynamics of the intracellular medium. This study probes different human cancer cells (breast, prostate and lung), concomitantly to their healthy counterparts, aiming at characterising the dynamical profile of water in distinct cellular locations, for each type of cell, and how it changes between normal and cancer states. An increased plasticity of the cytomatrix is observed upon normal-to-malignant transformation, the lung carcinoma cells displaying the highest flexibility followed by prostate and breast cancers. Also, lung cells show a distinct behaviour relative to breast and prostate, with a higher influence from hydration water motions and localised fast rotations upon NTC transformation. Quasielastic neutron scattering techniques allowed to accurately distinguish the different dynamical processes taking place within these highly heterogeneous cellular systems. The results thus obtained suggest that intracellular water dynamics may be regarded as a specific reporter of the cellular conditions-either healthy or malignant.
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Affiliation(s)
- M P M Marques
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535, Coimbra, Portugal
- Department of Life Sciences, University of Coimbra, 3000-456, Coimbra, Portugal
| | - A L M Batista de Carvalho
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535, Coimbra, Portugal.
| | - C B Martins
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535, Coimbra, Portugal
- Department of Life Sciences, University of Coimbra, 3000-456, Coimbra, Portugal
| | - J D Silva
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535, Coimbra, Portugal
- Department of Life Sciences, University of Coimbra, 3000-456, Coimbra, Portugal
| | - M Sarter
- STFC Rutherford Appleton Laboratory, ISIS Facility, Chilton, Didcot, OX11 0QX, UK
| | - V García Sakai
- STFC Rutherford Appleton Laboratory, ISIS Facility, Chilton, Didcot, OX11 0QX, UK
| | - J R Stewart
- STFC Rutherford Appleton Laboratory, ISIS Facility, Chilton, Didcot, OX11 0QX, UK
| | - L A E Batista de Carvalho
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, 3004-535, Coimbra, Portugal
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2
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Stelling-Férez J, López-Miranda S, Gabaldón JA, Nicolás FJ. Oleanolic Acid Complexation with Cyclodextrins Improves Its Cell Bio-Availability and Biological Activities for Cell Migration. Int J Mol Sci 2023; 24:14860. [PMID: 37834307 PMCID: PMC10573973 DOI: 10.3390/ijms241914860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 09/26/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023] Open
Abstract
Wound healing is a complex process to restore skin. Plant-derived bioactive compounds might be a source of substances for the treatment of wounds stalled in a non-resolving stage of wound healing. Oleanolic acid (OA), a pentacyclic triterpene, has shown favorable wound healing properties both in vitro and in vivo. Unfortunately, OA cannot be solubilized in aqueous media, and it needs to be helped by the use of dimethyl sulfoxide (DMSO). In this paper, we have shown that cyclodextrins (CDs) are a good alternative to DMSO as agents to deliver OA to cells, providing better features than DMSO. Cyclodextrins are natural macromolecules that show a unique tridimensional structure that can encapsulate a wide variety of hydrophobic compounds. We have studied the cyclodextrin-encapsulated form of OA with OA/DMSO, comparing their stability, biological properties for cell migration, and cell viability. In addition, detailed parameters related to cell migration and cytoskeletal reorganization have been measured and compared. Our results show that OA-encapsulateds compound exhibit several advantages when compared to non-encapsulated OA in terms of chemical stability, migration enhancement, and preservation of cell viability.
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Affiliation(s)
- Javier Stelling-Férez
- Department of Nutrition and Food Technology, Health Sciences PhD Program, Universidad Católica de San Antonio Murcia (UCAM), Campus de los Jerónimos n°135, Guadalupe, 30107 Murcia, Spain; (J.S.-F.); (S.L.-M.); (J.A.G.)
- Regeneration, Molecular Oncology and TGF-β, Instituto Murciano de Investigación Biosanitaria (IMIB)-Arrixaca, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, 30120 Murcia, Spain
| | - Santiago López-Miranda
- Department of Nutrition and Food Technology, Health Sciences PhD Program, Universidad Católica de San Antonio Murcia (UCAM), Campus de los Jerónimos n°135, Guadalupe, 30107 Murcia, Spain; (J.S.-F.); (S.L.-M.); (J.A.G.)
| | - José Antonio Gabaldón
- Department of Nutrition and Food Technology, Health Sciences PhD Program, Universidad Católica de San Antonio Murcia (UCAM), Campus de los Jerónimos n°135, Guadalupe, 30107 Murcia, Spain; (J.S.-F.); (S.L.-M.); (J.A.G.)
| | - Francisco José Nicolás
- Regeneration, Molecular Oncology and TGF-β, Instituto Murciano de Investigación Biosanitaria (IMIB)-Arrixaca, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, 30120 Murcia, Spain
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3
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Azimian Zavareh V, Rafiee L, Sheikholeslam M, Shariati L, Vaseghi G, Savoji H, Haghjooy Javanmard S. Three-Dimensional in Vitro Models: A Promising Tool To Scale-Up Breast Cancer Research. ACS Biomater Sci Eng 2022; 8:4648-4672. [PMID: 36260561 DOI: 10.1021/acsbiomaterials.2c00277] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Common models used in breast cancer studies, including two-dimensional (2D) cultures and animal models, do not precisely model all aspects of breast tumors. These models do not well simulate the cell-cell and cell-stromal interactions required for normal tumor growth in the body and lake tumor like microenvironment. Three-dimensional (3D) cell culture models are novel approaches to studying breast cancer. They do not have the restrictions of these conventional models and are able to recapitulate the structural architecture, complexity, and specific function of breast tumors and provide similar in vivo responses to therapeutic regimens. These models can be a link between former traditional 2D culture and in vivo models and are necessary for further studies in cancer. This review attempts to summarize the most common 3D in vitro models used in breast cancer studies, including scaffold-free (spheroid and organoid), scaffold-based, and chip-based models, particularly focused on the basic and translational application of these 3D models in drug screening and the tumor microenvironment in breast cancer.
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Affiliation(s)
- Vajihe Azimian Zavareh
- Applied Physiology Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan 81746 73461, Iran.,Core Research Facilities (CRF), Isfahan University of Medical Sciences, Isfahan 81746 73461, Iran
| | - Laleh Rafiee
- Applied Physiology Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan 81746 73461, Iran
| | - Mohammadali Sheikholeslam
- Department of Biomaterials, Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan 81746 73461, Iran.,Biosensor Research Center, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan 81746 73461, Iran
| | - Laleh Shariati
- Department of Biomaterials, Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan 81746 73461, Iran.,Cancer Prevention Research Center, Omid Hospital, Isfahan University of Medical Sciences, Isfahan 81746 73461, Iran
| | - Golnaz Vaseghi
- Isfahan Cardiovascular Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan 81746 73461, Iran
| | - Houman Savoji
- Institute of Biomedical Engineering, Department of Pharmacology and Physiology, Faculty of Medicine, University of Montreal, Montreal, QC H3T 1J4, Canada.,Research Center, Centre Hospitalier Universitaire Sainte-Justine, Montreal, QC H3T 1C5, Canada.,Montreal TransMedTech Institute, Montreal, QC H3T 1J4, Canada
| | - Shaghayegh Haghjooy Javanmard
- Applied Physiology Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan 81746 73461, Iran
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Senigagliesi B, Samperi G, Cefarin N, Gneo L, Petrosino S, Apollonio M, Caponnetto F, Sgarra R, Collavin L, Cesselli D, Casalis L, Parisse P. Triple negative breast cancer-derived small extracellular vesicles as modulator of biomechanics in target cells. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2022; 44:102582. [PMID: 35817390 DOI: 10.1016/j.nano.2022.102582] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 05/16/2022] [Accepted: 06/28/2022] [Indexed: 12/14/2022]
Abstract
Extracellular vesicle (EV) mediated communication has recently been proposed as one of the pivotal routes in the development of cancer metastasis. EVs are nano-sized vesicles swapped between cells, carrying a biologically active content that can promote tumor-induced immune suppression, metastasis and angiogenesis. Thus, EVs constitute a potential target in cancer therapy. However, their role in triggering the premetastatic niche and in tumor spreading is still unclear. Here, we focused on the EV ability to modulate the biomechanical properties of target cells, known to play a crucial role in metastatic spreading. To this purpose, we isolated and thoroughly characterized triple-negative breast cancer (TNBC)-derived small EVs. We then evaluated variations in the mechanical properties (cell stiffness, cytoskeleton/nuclear/morphology and Yap activity rearrangements) of non-metastatic breast cancer MCF7 cells upon EV treatment. Our results suggest that TNBC-derived small EVs are able to directly modify MCF7 cells by inducing a decrease in cell stiffness, rearrangements in cytoskeleton, focal adhesions and nuclear/cellular morphology, and an increase in Yap downstream gene expression. Testing the biomechanical response of cells after EV addition might represent a new functional assay in metastatic cancer framework that can be exploited for future application both in diagnosis and in therapy.
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Affiliation(s)
- Beatrice Senigagliesi
- Scuola Internazionale Superiore di Studi Avanzati, Trieste, Italy; Elettra-Sincrotrone Trieste S.C.p.A, Trieste, Italy.
| | | | - Nicola Cefarin
- Istituto Officina dei Materiali Consiglio Nazionale delle Ricerche, Trieste, Italy
| | | | - Sara Petrosino
- Telethon Institute of Genetics and Medicine, Naples, Italy.
| | - Mattia Apollonio
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | | | - Riccardo Sgarra
- Department of Life Sciences, University of Trieste, Trieste, Italy.
| | - Licio Collavin
- Department of Life Sciences, University of Trieste, Trieste, Italy.
| | - Daniela Cesselli
- Pathology Department, University Hospital of Udine, Udine, Italy; Department of Medicine, University of Udine, Udine, Italy.
| | | | - Pietro Parisse
- Elettra-Sincrotrone Trieste S.C.p.A, Trieste, Italy; Istituto Officina dei Materiali Consiglio Nazionale delle Ricerche, Trieste, Italy.
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5
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Decoding Single Cell Morphology in Osteotropic Breast Cancer Cells for Dissecting Their Migratory, Molecular and Biophysical Heterogeneity. Cancers (Basel) 2022; 14:cancers14030603. [PMID: 35158871 PMCID: PMC8833404 DOI: 10.3390/cancers14030603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/11/2022] [Accepted: 01/17/2022] [Indexed: 02/06/2023] Open
Abstract
Breast cancer is a heterogeneous disease and the mechanistic framework for differential osteotropism among intrinsic breast cancer subtypes is unknown. Hypothesizing that cell morphology could be an integrated readout for the functional state of a cancer cell, we established a catalogue of the migratory, molecular and biophysical traits of MDA-MB-231 breast cancer cells, compared it with two enhanced bone-seeking derivative cell lines and integrated these findings with single cell morphology profiles. Such knowledge could be essential for predicting metastatic capacities in breast cancer. High-resolution microscopy revealed a heterogeneous and specific spectrum of single cell morphologies in bone-seeking cells, which correlated with differential migration and stiffness. While parental MDA-MB-231 cells showed long and dynamic membrane protrusions and were enriched in motile cells with continuous and mesenchymal cell migration, bone-seeking cells appeared with discontinuous mesenchymal or amoeboid-like migration. Although non-responsive to CXCL12, bone-seeking cells responded to epidermal growth factor with a morphotype shift and differential expression of genes controlling cell shape and directional migration. Hence, single cell morphology encodes the molecular, migratory and biophysical architecture of breast cancer cells and is specifically altered among osteotropic phenotypes. Quantitative morpho-profiling could aid in dissecting breast cancer heterogeneity and in refining clinically relevant intrinsic breast cancer subtypes.
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Subia B, Dahiya UR, Mishra S, Ayache J, Casquillas GV, Caballero D, Reis RL, Kundu SC. Breast tumor-on-chip models: From disease modeling to personalized drug screening. J Control Release 2021; 331:103-120. [PMID: 33417986 PMCID: PMC8172385 DOI: 10.1016/j.jconrel.2020.12.057] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 12/30/2020] [Accepted: 12/31/2020] [Indexed: 02/06/2023]
Abstract
Breast cancer is one of the leading causes of mortality worldwide being the most common cancer among women. Despite the significant progress obtained during the past years in the understanding of breast cancer pathophysiology, women continue to die from it. Novel tools and technologies are needed to develop better diagnostic and therapeutic approaches, and to better understand the molecular and cellular players involved in the progression of this disease. Typical methods employed by the pharmaceutical industry and laboratories to investigate breast cancer etiology and evaluate the efficiency of new therapeutic compounds are still based on traditional tissue culture flasks and animal models, which have certain limitations. Recently, tumor-on-chip technology emerged as a new generation of in vitro disease model to investigate the physiopathology of tumors and predict the efficiency of drugs in a native-like microenvironment. These microfluidic systems reproduce the functional units and composition of human organs and tissues, and importantly, the rheological properties of the native scenario, enabling precise control over fluid flow or local gradients. Herein, we review the most recent works related to breast tumor-on-chip for disease modeling and drug screening applications. Finally, we critically discuss the future applications of this emerging technology in breast cancer therapeutics and drug development.
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Affiliation(s)
- Bano Subia
- Elvesys Microfluidics Innovation Centre, Paris 75011, France..
| | | | - Sarita Mishra
- CSIR-Institute of Genomics and Integrative Biology, New Delhi 110025, India..
| | - Jessica Ayache
- Elvesys Microfluidics Innovation Centre, Paris 75011, France..
| | | | - David Caballero
- 3B's Research Group, I3Bs-Institute on Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, AvePark, Barco, Guimarãaes 4805-017, Portugal; ICVS/3B's - PT Government Associate Laboratory, 4805-017, Braga/Guimarães, Portugal.
| | - Rui L Reis
- 3B's Research Group, I3Bs-Institute on Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, AvePark, Barco, Guimarãaes 4805-017, Portugal; ICVS/3B's - PT Government Associate Laboratory, 4805-017, Braga/Guimarães, Portugal.
| | - Subhas C Kundu
- 3B's Research Group, I3Bs-Institute on Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, AvePark, Barco, Guimarãaes 4805-017, Portugal; ICVS/3B's - PT Government Associate Laboratory, 4805-017, Braga/Guimarães, Portugal.
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7
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Liu Y, Li H, Liu F, Gao LB, Han R, Chen C, Ding X, Li S, Lu K, Yang L, Tian HM, Chen BB, Li X, Xu DH, Deng XL, Shi SL. Heterogeneous nuclear ribonucleoprotein A2/B1 is a negative regulator of human breast cancer metastasis by maintaining the balance of multiple genes and pathways. EBioMedicine 2020; 51:102583. [PMID: 31901866 PMCID: PMC6948170 DOI: 10.1016/j.ebiom.2019.11.044] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/19/2019] [Accepted: 11/25/2019] [Indexed: 12/14/2022] Open
Abstract
Background Heterogeneous nuclear ribonucleoprotein (hnRNP) A2/B1 is an important RNA-binding protein that affects the RNA processing, splicing, transport and stability of many genes. hnRNPA2/B1 is expressed during proliferation and metastasis of various cancer types and promotes such processes. However, the precise role and mechanism of hnRNPA2/B1 in breast cancer remain unclear. Methods The association of hnRNPA2/B1 with breast cancer metastasis was assessed using tissue chips, mouse models and publicly available data. The role and mechanism of hnRNPA2/B1 in breast cancer metastasis were studied in cell lines and mouse models. Findings In contrast to other cancer research findings, hnRNPA2/B1 expression was negatively correlated with breast cancer metastasis. hnRNPA2/B1 inhibited MDA-MB-231 triple-negative breast cancer (TNBC) cell metastasis in vitro and in vivo. hnRNPA2/B1 knockout activated ERK-MAPK/Twist and GR-beta/TCF4 pathways but inhibited STAT3 and WNT/TCF4 signalling pathways. Profilin 2 (PFN2) promoted breast cancer cell migration and invasion, whereas hnRNPA2/B1 bound directly to the UAGGG locus in the 3′-untranslated region of PFN2 mRNA and reduced the stability of PFN2 mRNA. Interpretation Our data supported the role of hnRNPA2/B1 in tumour metastasis risk and survival prediction in patients with breast cancer. The inhibitory role of hnRNPA2/B1 in metastasis was a balance of downstream multiple genes and signalling pathways. PFN2 downregulation by hnRNPA2/B1 might partly explain the inhibitory mechanism of hnRNPA2/B1 in breast cancer metastasis. Therefore, hnRNPA2/B1 might be used as a new prognostic biomarker and valuable molecular target for breast cancer treatments.
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Affiliation(s)
- Yu Liu
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China; School of Life Science and Biotechnology, Shanghai Jiaotong University, Shanghai 200240, PR China
| | - Huan Li
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China
| | - Fan Liu
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China
| | - Li-Bin Gao
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China
| | - Rong Han
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China
| | - Chen Chen
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China
| | - Xue Ding
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China
| | - Shuang Li
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China
| | - Kun Lu
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China
| | - Ling Yang
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China
| | - Hui-Min Tian
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China
| | - Bin-Bin Chen
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China
| | - Xiao Li
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China
| | - Dong-Hui Xu
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China
| | - Xiao-Ling Deng
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China
| | - Song-Lin Shi
- Cancer Research Center, School of Medicine, Xiamen University, Room 303, No.4221-122, Xiang'annan Road, Xiang'an District, Xiamen 361102, PR China.
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Wu J, Kumar-Kanojia A, Hombach-Klonisch S, Klonisch T, Lin F. A radial microfluidic platform for higher throughput chemotaxis studies with individual gradient control. LAB ON A CHIP 2018; 18:3855-3864. [PMID: 30427358 DOI: 10.1039/c8lc00981c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Chemotaxis plays a fundamental role in immune defense and cancer metastasis. Microfluidic devices are increasingly applied to studying chemotaxis, owing to their advantages of reduced reagent consumption, ability to control chemical gradients, tracking of individual cells, and quantification of chemotaxis. Many existing microfluidic chemotaxis devices suffer from limited throughput and complex operation. Here, we describe a microfluidic device with a radial channel design which allows for simultaneous chemotaxis tests of different cell types and different gradient conditions. This radial microfluidic device was capable of stand-alone stable gradient generation using passive pumping and pressure-balancing strategies. The device was validated by testing the migration of fast-migrating human neutrophils and two slower-migrating human breast cancer cell lines, MDA-MB-231 and MCF-7 cells. Furthermore, this radial microfluidic device was useful in studying the influence of the nuclear chromatin binding protein high mobility group A2 (HMGA2) on the migration of the human triple negative breast cancer cell line MDA-MB-231.
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Affiliation(s)
- Jiandong Wu
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, MB R3T 2N2, Canada.
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9
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Chen D, Yu X. Long noncoding RNA TSLNC8 suppresses cell proliferation and metastasis and promotes cell apoptosis in human glioma. Mol Med Rep 2018; 18:5536-5544. [PMID: 30387847 DOI: 10.3892/mmr.2018.9609] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Accepted: 08/01/2018] [Indexed: 11/05/2022] Open
Abstract
Glioma is among the most common primary brain tumors and one of the most aggressive and lethal forms of human cancer. Long noncoding RNAs (lncRNAs) have demonstrated great importance in the development and progression of cancer. The present study aimed to investigate the role of the novel tumor suppressive lncRNA on Chromosome 8p12 (TSLNC8), in cell proliferation, metastasis and apoptosis in human glioma. It was initially reported that the relative transcript levels of TSLNC8 were significantly decreased in human glioma tissues and cultured glioma cells, as evidenced by RT‑qPCR. Among clinical variables, the expression of TSLNC8 was negatively associated with tumor size, distant metastasis, and tumor, node and metastasis stage. MTT assay demonstrated that overexpression of TSLNC8 in glioma cell lines U25‑MG and SWO38 decreased, whereas knockdown of TSLNC8 in glioma cells SHG‑44 and BT325 increased the cell proliferative rate over 5 consecutive days. Additionally, cell metastasis was inhibited in U251 and SWO38 cells when cells were transfected with TSLNC8‑expressing plasmid as observed via Transwell and wound‑healing assays. Furthermore, cell apoptotic rate was upregulated in TSLNC8 plasmid‑treated U251 and SWO38 cells, and inhibited by siRNA against TSLNC8 in SHG‑44 and BT325 cells by cell apoptotic assay. The relative activities of caspase‑3 and caspase‑9 were increased by TSLNC8 overexpression and decreased by TSLNC depletion; however, the activity of caspase‑8 remained unchanged. The results of the present study demonstrated the inhibitory effects of TSLNC8 in human glioma, which may contribute to advancement in the diagnosis and treatment of patients with glioma in clinic.
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Affiliation(s)
- Dong Chen
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, P.R. China
| | - Xin Yu
- Department of Surgery, Operating Room, Tianjin First Central Hospital, Tianjin 300192, P.R. China
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10
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Sibbitts J, Sellens KA, Jia S, Klasner SA, Culbertson CT. Cellular Analysis Using Microfluidics. Anal Chem 2017; 90:65-85. [DOI: 10.1021/acs.analchem.7b04519] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jay Sibbitts
- Department
of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Kathleen A. Sellens
- Department
of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Shu Jia
- Department
of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Scott A. Klasner
- 12966
South
State Highway 94, Marthasville, Missouri 63357, United States
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