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Jia C, Gill WD, Lovins C, Brown RW, Hagg T. Astrocyte focal adhesion kinase reduces passive stress coping by inhibiting ciliary neurotrophic factor only in female mice. Neurobiol Stress 2024; 30:100621. [PMID: 38516563 PMCID: PMC10955429 DOI: 10.1016/j.ynstr.2024.100621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/14/2024] [Accepted: 03/05/2024] [Indexed: 03/23/2024] Open
Abstract
Astrocytes have been implicated in stress responses and produce ciliary neurotrophic factor (CNTF), which we have shown in the mouse medial amygdala (MeA) to promote passive stress coping response only in females. Pharmacological inhibition of focal adhesion kinase (FAK) upregulates CNTF expression. Here, we found that inducible knockout of FAK in astrocytes or systemic treatment with an FAK inhibitor increased passive coping behavior, i.e., immobility, in an acute forced swim stress test in female, but not male, mice. Strikingly, four weeks of chronic unpredictable stress (CUS) did not further increase passive coping in female astrocytic FAK knockout mice, whereas it exacerbated it in female wildtype mice and male mice of both genotypes. These data suggest that astrocyte FAK inhibition is required for chronic stress-induced passive coping in females. Indeed, CUS reduced phospho-FAK and increased CNTF in the female MeA. Progesterone treatment after ovariectomy activated amygdala FAK and alleviated ovariectomy-induced passive coping in wildtype, but not astrocytic FAK knockout females. This suggests that progesterone-mediated activation of FAK in astrocytes reduces female stress responses. Finally, astrocytic FAK knockout or FAK inhibitor treatment increased CNTF expression in the MeA of both sexes, although not in the hippocampus. As mentioned, MeA CNTF promotes stress responses only in females, which may explain the female-specific role of astrocytic FAK inhibition. Together, this study reveals a novel female-specific progesterone-astrocytic FAK pathway that counteracts CNTF-mediated stress responses and points to opportunities for developing treatments for stress-related disorders in women.
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Affiliation(s)
- Cuihong Jia
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, 37614, USA
| | - W. Drew Gill
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, 37614, USA
| | - Chiharu Lovins
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, 37614, USA
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2
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Krüger LJ, Vrugt MT, Bröker S, Wallmeyer B, Betz T, Wittkowski R. Analytical method for reconstructing the stress on a spherical particle from its surface deformation. Biophys J 2024; 123:527-537. [PMID: 38258291 PMCID: PMC10938078 DOI: 10.1016/j.bpj.2024.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 12/10/2023] [Accepted: 01/17/2024] [Indexed: 01/24/2024] Open
Abstract
The mechanical forces that cells experience from the tissue surrounding them are crucial for their behavior and development. Experimental studies of such mechanical forces require a method for measuring them. A widely used approach in this context is bead deformation analysis, where spherical particles are embedded into the tissue. The deformation of the particles then allows to reconstruct the mechanical stress acting on them. Existing approaches for this reconstruction are either very time-consuming or not sufficiently general. In this article, we present an analytical approach to this problem based on an expansion in solid spherical harmonics that allows us to find the complete stress tensor describing the stress acting on the tissue. Our approach is based on the linear theory of elasticity and uses an ansatz specifically designed for deformed spherical bodies. We clarify the conditions under which this ansatz can be used, making our results useful also for other contexts in which this ansatz is employed. Our method can be applied to arbitrary radial particle deformations and requires a very low computational effort. The usefulness of the method is demonstrated by an application to experimental data.
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Affiliation(s)
- Lea Johanna Krüger
- Institute of Theoretical Physics, Center for Soft Nanoscience, University of Münster, Münster, Germany
| | - Michael Te Vrugt
- Institute of Theoretical Physics, Center for Soft Nanoscience, University of Münster, Münster, Germany; DAMTP, Centre for Mathematical Sciences, University of Cambridge, Cambridge, UK
| | - Stephan Bröker
- Institute of Theoretical Physics, Center for Soft Nanoscience, University of Münster, Münster, Germany
| | - Bernhard Wallmeyer
- Centre for Molecular Biology of Inflammation, Institute of Cell Biology, University of Münster, Münster, Germany
| | - Timo Betz
- Third Institute of Physics - Biophysics, University of Göttingen, Göttingen, Germany
| | - Raphael Wittkowski
- Institute of Theoretical Physics, Center for Soft Nanoscience, University of Münster, Münster, Germany.
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3
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Paul S, Schrobback K, Tran PA, Meinert C, Davern JW, Weekes A, Nedunchezhiyan U, Klein TJ. GelMA-glycol chitosan hydrogels for cartilage regeneration: The role of uniaxial mechanical stimulation in enhancing mechanical, adhesive, and biochemical properties. APL Bioeng 2023; 7:036114. [PMID: 37692373 PMCID: PMC10492648 DOI: 10.1063/5.0160472] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/14/2023] [Indexed: 09/12/2023] Open
Abstract
Untreated osteochondral defects are a leading cause of osteoarthritis, a condition that places a heavy burden on both patients and orthopedic surgeons. Although tissue engineering has shown promise for creating mechanically similar cartilage-like constructs, their integration with cartilage remains elusive. Therefore, a formulation of biodegradable, biocompatible biomaterial with sufficient mechanical and adhesive properties for cartilage repair is required. To accomplish this, we prepared biocompatible, photo-curable, mechanically robust, and highly adhesive GelMA-glycol chitosan (GelMA-GC) hydrogels. GelMA-GC hydrogels had a modulus of 283 kPa and provided a biocompatible environment (>70% viability of embedded chondrocytes) in long-term culture within a bovine cartilage ring. The adhesive strength of bovine chondrocyte-laden GelMA-GC hydrogel to bovine cartilage increased from 38 to 52 kPa over four weeks of culture. Moreover, intermittent uniaxial mechanical stimulation enhanced the adhesive strength to ∼60 kPa, indicating that the cartilage-hydrogel integration could remain secure and functional under dynamic loading conditions. Furthermore, gene expression data and immunofluorescence staining revealed the capacity of chondrocytes in GelMA-GC hydrogel to synthesize chondrogenic markers (COL2A1 and ACAN), suggesting the potential for tissue regeneration. The promising in vitro results of this work motivate further exploration of the potential of photo-curable GelMA-GC bioadhesive hydrogels for cartilage repair and regeneration.
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Affiliation(s)
| | - Karsten Schrobback
- School of Biomedical Sciences, Centre for Genomics and Personalised Health, Translational Research Institute, Queensland University of Technology (QUT), 37 Kent Street, Woolloongabba, QLD 4102, Australia
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4
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Shao Z, Chwa M, Atilano SR, Park J, Karageozian H, Karageozian V, Kenney MC. The Transcriptome Profile of Retinal Pigment Epithelium and Müller Cell Lines Protected by Risuteganib Against Hydrogen Peroxide Stress. J Ocul Pharmacol Ther 2022; 38:513-526. [PMID: 35731128 PMCID: PMC9508878 DOI: 10.1089/jop.2022.0015] [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] [Indexed: 11/27/2022] Open
Abstract
Purpose: Oxidative stress contributes to the pathogenesis of vision-impairing diseases. In the retina, retinal pigment epithelium (RPE) and Müller cells support neuronal homeostasis, but also contribute to pathological development under stressed conditions. Recent studies found that the investigational drug risuteganib (RSG) has a good safety profile, provided protection in experimental models, and improved visual acuity in patients. The present in vitro study evaluated the effects of RSG in RPE and Müller cell lines stressed with the oxidant hydrogen peroxide (H2O2). Methods: Human RPE (ARPE-19) and Müller (MIO-M1) cell lines were treated with various combinations of RSG and H2O2. Trypan blue assay was used to investigate the effect of compounds on cell viability. Gene expression was measured using RNA sequencing to identify regulated genes and the biological processes and pathways involved. Results: Trypan blue assay found RSG pre-treatment significantly protected against H2O2-induced cell death in ARPE-19 and MIO-M1 cells. Transcriptome analysis found H2O2 regulated genes in several disease-relevant biological processes, including cell adhesion, migration, death, and proliferation; ECM organization; angiogenesis; metabolism; and immune system processes. RSG pre-treatment modulated these gene expression profiles in the opposite direction of H2O2. Pathway analysis found genes in integrin, AP-1, and syndecan signaling pathways were regulated. Expression of selected RSG-regulated genes was validated using qRT-PCR. Conclusions: RSG protected cultured human RPE and Müller cell lines against H2O2-induced cell death and mitigated the associated transcriptome changes in biological processes and pathways relevant to the pathogenesis of retinal diseases. These results demonstrate RSG reduced oxidative stress-induced toxicity in two retinal cell lines with potential relevance to the treatment of human diseases.
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Affiliation(s)
- Zixuan Shao
- Allegro Ophthalmics, LLC, San Juan Capistrano, California, USA
| | - Marilyn Chwa
- Gavin Herbert Eye Institute, University of California Irvine, Irvine, California, USA
| | - Shari R Atilano
- Gavin Herbert Eye Institute, University of California Irvine, Irvine, California, USA
| | - John Park
- Allegro Ophthalmics, LLC, San Juan Capistrano, California, USA
| | | | | | - M Cristina Kenney
- Gavin Herbert Eye Institute, University of California Irvine, Irvine, California, USA.,Department of Pathology and Laboratory Medicine, University of California Irvine, Irvine, California, USA
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5
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CD103 Expression on Regulatory and Follicular T Cells in Lymph Nodes, Bronchoalveolar Lavage Fluid and Peripheral Blood of Sarcoidosis Patients. Life (Basel) 2022; 12:life12050762. [PMID: 35629428 PMCID: PMC9146853 DOI: 10.3390/life12050762] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/12/2022] [Accepted: 05/19/2022] [Indexed: 11/26/2022] Open
Abstract
(1) Background: Sarcoidosis is a chronic multisystem disorder of unknown aetiology, driven by a T-cell mechanism allowing T-cell attachment and transmigration through the endothelium, and endorsed by the expression of an integrin alpha-E beta-7 (CD103). This study aimed to analyse the different distribution and compartmentalisation of CD103 expression on T cell subsets in BAL, peripheral blood mononuclear cells (PBMC) and lymph nodes (LLN) from sarcoidosis patients. (2) Patients: We consecutively and prospectively enrolled 14 sarcoidosis patients. We collected PBMC, LLN and BAL at the same time from all patients. Through flow cytometric analysis, we analysed the expression of CD103 on regulatory and follicular T cell subsets. (3) Results: All patients were in radiological Scadding stage II. The multivariate analysis found that the variables which most influenced the peripheral blood compartment were high CD8+ and low ThReg, CD8+CD103+ and Tfh cell percentages. A principal component analysis plot performed to distinguish LLN, BAL and PBMC showed that they separated on the basis of CD4+, CD4+CD103+, CD8+, CD8+CD103+, TcEffector, TcNaive, ThNaive, ThEffector, Threg, ThregCD103+, Tfh, TcfCXC5+ and CD4+CD103+/CD4+ with 65.96% of the total variance. (4) Conclusions: Our study is the first to report a link between the imbalance in circulating, alveolar and lymph node CD8+ and CD8+CD103+ T cells, ThReg, Tfh and ThNaive and the CD103+CD4+/CD4+ T cell ratio in the development of sarcoidosis. These findings shine a spotlight on the pathogenesis of sarcoidosis and may offer new predictors for diagnosis. Our study provides additional understanding for a personalised, and hopefully more effective treatment of sarcoidosis.
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Sadri G, Fischer AG, Brittian KR, Elliott E, Nystoriak MA, Uchida S, Wysoczynski M, Leask A, Jones SP, Moore JB. Collagen type XIX regulates cardiac extracellular matrix structure and ventricular function. Matrix Biol 2022; 109:49-69. [PMID: 35346795 PMCID: PMC9161575 DOI: 10.1016/j.matbio.2022.03.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 02/13/2022] [Accepted: 03/22/2022] [Indexed: 12/26/2022]
Abstract
The cardiac extracellular matrix plays essential roles in homeostasis and injury responses. Although the role of fibrillar collagens have been thoroughly documented, the functions of non-fibrillar collagen members remain underexplored. These include a distinct group of non-fibrillar collagens, termed, fibril-associated collagens with interrupted triple helices (FACITs). Recent reports of collagen type XIX (encoded by Col19a1) expression in adult heart and evidence of its enhanced expression in cardiac ischemia suggest important functions for this FACIT in cardiac ECM structure and function. Here, we examined the cellular source of collagen XIX in the adult murine heart and evaluated its involvement in ECM structure and ventricular function. Immunodetection of collagen XIX in fractionated cardiovascular cell lineages revealed fibroblasts and smooth muscle cells as the primary sources of collagen XIX in the heart. Based on echocardiographic and histologic analyses, Col19a1 null (Col19a1N/N) mice exhibited reduced systolic function, thinning of left ventricular walls, and increased cardiomyocyte cross-sectional areas-without gross changes in myocardial collagen content or basement membrane morphology. Col19a1N/N cardiac fibroblasts had augmented expression of several enzymes involved in the synthesis and stability of fibrillar collagens, including PLOD1 and LOX. Furthermore, second harmonic generation-imaged ECM derived from Col19a1N/N cardiac fibroblasts, and transmission electron micrographs of decellularized hearts from Col19a1N/N null animals, showed marked reductions in fibrillar collagen structural organization. Col19a1N/N mice also displayed enhanced phosphorylation of focal adhesion kinase (FAK), signifying de-repression of the FAK pathway-a critical mediator of cardiomyocyte hypertrophy. Collectively, we show that collagen XIX, which had a heretofore unknown role in the mammalian heart, participates in the regulation of cardiac structure and function-potentially through modulation of ECM fibrillar collagen structural organization. Further, these data suggest that this FACIT may modify ECM superstructure via acting at the level of the fibroblast to regulate their expression of collagen synthetic and stabilization enzymes.
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Affiliation(s)
- Ghazal Sadri
- Diabetes and Obesity Center, University of Louisville School of Medicine, Louisville, KY, USA
| | - Annalara G Fischer
- Diabetes and Obesity Center, University of Louisville School of Medicine, Louisville, KY, USA
| | - Kenneth R Brittian
- Diabetes and Obesity Center, University of Louisville School of Medicine, Louisville, KY, USA
| | - Erin Elliott
- Diabetes and Obesity Center, University of Louisville School of Medicine, Louisville, KY, USA
| | - Matthew A Nystoriak
- Diabetes and Obesity Center, University of Louisville School of Medicine, Louisville, KY, USA
| | - Shizuka Uchida
- Center for RNA Medicine, Department of Clinical Medicine, Aalborg University, Copenhagen, Denmark
| | - Marcin Wysoczynski
- Diabetes and Obesity Center, University of Louisville School of Medicine, Louisville, KY, USA
| | - Andrew Leask
- College of Dentistry, University of Saskatchewan, Saskatoon, SK, Canada
| | - Steven P Jones
- Diabetes and Obesity Center, University of Louisville School of Medicine, Louisville, KY, USA
| | - Joseph B Moore
- Diabetes and Obesity Center, University of Louisville School of Medicine, Louisville, KY, USA.
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7
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Li F, Luo Z. Boron delivery agents for boron neutron capture therapy. CHINESE SCIENCE BULLETIN-CHINESE 2021. [DOI: 10.1360/tb-2021-1013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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8
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Shi XH, Zhou X, Lei ZY, Tian Y, Chen Y, Zhang YM, Mao TC, Fan DL, Zhou SW. Novel silicone rubber with carboxyl grafted polyhedral oligomeric silsesquioxane (POSS-COOH) as a potential scaffold for soft tissue filling. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1999951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Xiao-hua Shi
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
- Base for Drug Clinical Trial, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Xin Zhou
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Ze-yuan Lei
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Yuan Tian
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Yao Chen
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Yi-ming Zhang
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Tong-chun Mao
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Dong-li Fan
- Department of Plastic and Cosmetic Surgery, Xinqiao Hospital, The Army Medical University, Chong Qing, China
| | - Shi-wen Zhou
- Base for Drug Clinical Trial, Xinqiao Hospital, The Army Medical University, Chong Qing, China
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9
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Cha J, Kim P. Cancer Cell-Sticky Hydrogels to Target the Cell Membrane of Invading Glioblastomas. ACS APPLIED MATERIALS & INTERFACES 2021; 13:31371-31378. [PMID: 34196172 DOI: 10.1021/acsami.1c00388] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Owing to their remarkable infiltrative traits, glioblastomas develop unclear tumor margins toward the brain, hampering the complete resection. Since the remaining invasive cells tend to have resistance to therapeutics and cause recurrence around the surgical voids, this has been a major challenge for glioblastoma treatment. Thus, we design a cancer cell-sticky hydrogel (CSH) that interacts with the glioblastoma cells to impede their invasive motility by modifying the cell membrane with active thiol-enriched interfaces. Highly reactive thiols at the cell surface can make the infiltrated cancer cells adhere to the hydrogel, resulting in increased cell adhesion and decreased motility. Cotreatment with the CSH and chemical inhibitors of the major proinvasive molecules, focal adhesion kinase and hyaluronic acid synthase, maximized the invasion-inhibitory effect. In addition, a significant decrease in tumor mass was achieved via CSH implantation in mouse models. Overall, our results highlight the use of the CSH to inhibit the aggressive invasion as a novel therapeutic strategy against glioblastoma.
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Affiliation(s)
- Junghwa Cha
- Department of Bio and Brain Engineering, KAIST, Daejeon 34141, Korea
- KAIST Institute for Health Science and Technology, Daejeon 34141, Korea
- Department of Bioengineering, University of California, Berkeley, California 94720, United States
| | - Pilnam Kim
- Department of Bio and Brain Engineering, KAIST, Daejeon 34141, Korea
- KAIST Institute for Health Science and Technology, Daejeon 34141, Korea
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10
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Abdollahiyan P, Oroojalian F, Baradaran B, de la Guardia M, Mokhtarzadeh A. Advanced mechanotherapy: Biotensegrity for governing metastatic tumor cell fate via modulating the extracellular matrix. J Control Release 2021; 335:596-618. [PMID: 34097925 DOI: 10.1016/j.jconrel.2021.06.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/01/2021] [Accepted: 06/02/2021] [Indexed: 12/19/2022]
Abstract
Mechano-transduction is the procedure of mechanical stimulus translation via cells, among substrate shear flow, topography, and stiffness into a biochemical answer. TAZ and YAP are transcriptional coactivators which are recognized as relay proteins that promote mechano-transduction within the Hippo pathway. With regard to healthy cells in homeostasis, mechano-transduction regularly restricts proliferation, and TAZ and YAP are totally inactive. During cancer development a YAP/TAZ - stimulating positive response loop is formed between the growing tumor and the stiffening ECM. As tumor developments, local stromal and cancerous cells take advantage of mechanotransduction to enhance proliferation, induce their migratory into remote tissues, and promote chemotherapeutic resistance. As a newly progresses paradigm, nanoparticle-conjunctions (such as magnetic nanoparticles, and graphene derivatives nanoparticles) hold significant promises for remote regulation of cells and their relevant events at molecular scale. Despite outstanding developments in employing nanoparticles for drug targeting studies, the role of nanoparticles on cellular behaviors (proliferation, migration, and differentiation) has still required more evaluations in the field of mechanotherapy. In this paper, the in-depth contribution of mechano-transduction is discussed during tumor progression, and how these consequences can be evaluated in vitro.
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Affiliation(s)
| | - Fatemeh Oroojalian
- Department of Advanced Sciences and Technologies in Medicine, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran; Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran.
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Miguel de la Guardia
- Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
| | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Park S, Kim JY, Ryu KH, Kim AY, Kim J, Ko YJ, Lee EG. Production of a Foot-and-Mouth Disease Vaccine Antigen Using Suspension-Adapted BHK-21 Cells in a Bioreactor. Vaccines (Basel) 2021; 9:vaccines9050505. [PMID: 34068378 PMCID: PMC8153295 DOI: 10.3390/vaccines9050505] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/08/2021] [Accepted: 05/11/2021] [Indexed: 12/15/2022] Open
Abstract
The baby hamster kidney-21 (BHK-21) cell line is a continuous cell line used to propagate foot-and-mouth disease (FMD) virus for vaccine manufacturing. BHK-21 cells are anchorage-dependent, although suspension cultures would enable rapid growth in bioreactors, large-scale virus propagation, and cost-effective vaccine production with serum-free medium. Here, we report the successful adaptation of adherent BHK-21 cells to growth in suspension to a viable cell density of 7.65 × 106 cells/mL on day 3 in serum-free culture medium. The suspension-adapted BHK-21 cells showed lower adhesion to five types of extracellular matrix proteins than adherent BHK-21 cells, which contributed to the suspension culture. In addition, a chemically defined medium (selected by screening various prototype media) led to increased FMD virus production yields in the batch culture, even at a cell density of only 3.5 × 106 cells/mL. The suspension BHK-21 cell culture could be expanded to a 200 L bioreactor from a 20 mL flask, which resulted in a comparable FMD virus titer. This platform technology improved virus productivity, indicating its potential for enhancing FMD vaccine production.
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Affiliation(s)
- Soonyong Park
- Bioprocess Engineering Center, KRIBB, 30 Yeongudanjiro Ochang-eup, Chungju-si 28116, Korea; (S.P.); (J.Y.K.); (K.-H.R.); (J.K.)
| | - Ji Yul Kim
- Bioprocess Engineering Center, KRIBB, 30 Yeongudanjiro Ochang-eup, Chungju-si 28116, Korea; (S.P.); (J.Y.K.); (K.-H.R.); (J.K.)
- Department of Bioprocess Engineering, Korea University of Science and Technology (UST), Daejeon 34113, Korea
| | - Kyoung-Hwa Ryu
- Bioprocess Engineering Center, KRIBB, 30 Yeongudanjiro Ochang-eup, Chungju-si 28116, Korea; (S.P.); (J.Y.K.); (K.-H.R.); (J.K.)
| | - Ah-Young Kim
- Center for FMD Vaccine Research, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea; (A.-Y.K.); (Y.-J.K.)
| | - Jaemun Kim
- Bioprocess Engineering Center, KRIBB, 30 Yeongudanjiro Ochang-eup, Chungju-si 28116, Korea; (S.P.); (J.Y.K.); (K.-H.R.); (J.K.)
- Department of Bioprocess Engineering, Korea University of Science and Technology (UST), Daejeon 34113, Korea
| | - Young-Joon Ko
- Center for FMD Vaccine Research, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea; (A.-Y.K.); (Y.-J.K.)
| | - Eun Gyo Lee
- Bioprocess Engineering Center, KRIBB, 30 Yeongudanjiro Ochang-eup, Chungju-si 28116, Korea; (S.P.); (J.Y.K.); (K.-H.R.); (J.K.)
- Correspondence: ; Tel.: +82-043-240-6633
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12
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Han HJ, Sung JY, Kim SH, Yun UJ, Kim H, Jang EJ, Yoo HE, Hong EK, Goh SH, Moon A, Lee JS, Ye SK, Shim J, Kim YN. Fibronectin regulates anoikis resistance via cell aggregate formation. Cancer Lett 2021; 508:59-72. [PMID: 33771684 DOI: 10.1016/j.canlet.2021.03.011] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 02/25/2021] [Accepted: 03/11/2021] [Indexed: 10/21/2022]
Abstract
The loss of cell-matrix interactions induces apoptosis, known as anoikis. For successful distant metastasis, circulating tumor cells (CTCs) that have lost matrix attachment need to acquire anoikis resistance in order to survive. Cell aggregate formation confers anoikis resistance, and CTC clusters are more highly metastatic compared to single cells; however, the molecular mechanisms underlying this aggregation are not well understood. In this study, we demonstrated that cell detachment increased cell aggregation and upregulated fibronectin (FN) levels in lung and breast cancer cells, but not in their normal counterparts. FN knockdown decreased cell aggregation and increased anoikis. In addition, cell detachment induced cell-cell adhesion proteins, including E-cadherin, desmoglein-2, desmocollin-2/3, and plakoglobin. Interestingly, FN knockdown decreased the levels of desmoglein-2, desmocollin-2/3, and plakoglobin, but not E-cadherin, suggesting the involvement of desmosomal junction in cell aggregation. Accordingly, knockdown of desmoglein-2, desmocollin-2, or plakoglobin reduced cell aggregation and increased cell sensitivity to anoikis. Previously, we reported that NADPH oxidase 4 (Nox4) upregulation is important for anoikis resistance. Nox4 inhibition by siRNA or apocynin decreased cell aggregation and increased anoikis with the downregulation of FN, and, consequently, decreased desmoglein-2, desmocollin-2/3, or plakoglobin. The coexpression of Nox4 and FN was found to be significant in lung and breast cancer patients, based on cBioPortal data. In vivo mouse lung metastasis model showed that FN knockdown suppressed lung metastasis and thus enhanced survival. FN staining of micro tissue array revealed that FN expression was positive for human lung cancer (61%) and breast cancer (58%) patients. Furthermore, the expression levels of FN, desmoglein-2, desmocollin-2, and plakoglobin were significantly correlated with the poor survival of lung and breast cancer patients, as per the Kaplan-Meier plotter analysis. Altogether, our data suggest that FN upregulation and enhanced desmosomal interactions are critical for cell aggregation and anoikis resistance upon cell detachment.
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Affiliation(s)
- Hyeong-Jun Han
- Division of Translational Science, National Cancer Center, Goyang, Republic of Korea
| | - Jee Young Sung
- Division of Translational Science, National Cancer Center, Goyang, Republic of Korea
| | - Su-Hyeon Kim
- Division of Translational Science, National Cancer Center, Goyang, Republic of Korea
| | - Un-Jung Yun
- Division of Translational Science, National Cancer Center, Goyang, Republic of Korea
| | - Hyeryeong Kim
- Division of Translational Science, National Cancer Center, Goyang, Republic of Korea
| | - Eun-Ju Jang
- Division of Translational Science, National Cancer Center, Goyang, Republic of Korea
| | - Ha-Eun Yoo
- Division of Translational Science, National Cancer Center, Goyang, Republic of Korea
| | - Eun Kyung Hong
- Department of Pathology, National Cancer Center, Goyang, Republic of Korea
| | - Sung-Ho Goh
- Division of Precision Medicine, National Cancer Center, Goyang, Republic of Korea
| | - Aree Moon
- Pharmacy, Duksung Women's University, Seoul, Republic of Korea
| | - Jae-Seon Lee
- Department of Molecular Medicine, College of Medicine, Inha University, Incheon, Republic of Korea
| | - Sang-Ku Ye
- Department of Pharmacology, College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Jaegal Shim
- Division of Translational Science, National Cancer Center, Goyang, Republic of Korea
| | - Yong-Nyun Kim
- Division of Translational Science, National Cancer Center, Goyang, Republic of Korea.
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Li Y, Sun C, Tan Y, Zhang H, Li Y, Zou H. ITGB1 enhances the Radioresistance of human Non-small Cell Lung Cancer Cells by modulating the DNA damage response and YAP1-induced Epithelial-mesenchymal Transition. Int J Biol Sci 2021; 17:635-650. [PMID: 33613118 PMCID: PMC7893583 DOI: 10.7150/ijbs.52319] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 12/27/2020] [Indexed: 12/13/2022] Open
Abstract
Objectives: Radiotherapy has played a limited role in the treatment of non-small cell lung cancer (NSCLC) due to the risk of tumour radioresistance. We previously established the radioresistant non-small cell lung cancer (NSCLC) cell line H460R. In this study, we identified differentially expressed genes between these radioresistant H460R cells and their radiosensitive parent line. We further evaluated the role of a differentially expressed gene, ITGB1, in NSCLC cell radioresistance and as a potential target for improving radiosensitivity. Materials and Methods: The radiosensitivity of NSCLC cells was evaluated by flow cytometry, colony formation assays, immunofluorescence, and Western blotting. Bioinformatics assay was used to identify the effect of ITGB1 and YAP1 expression in NSCLC tissues. Results: ITGB1 mRNA and protein expression levels were higher in H460R than in the parental H460 cells. We observed lower clonogenic survival and cell viability and a higher rate of apoptosis of ITGB1-knockdown A549 and H460R cells than of wild type cells post-irradiation. Transfection with an ITGB1 short hairpin (sh) RNA enhanced radiation-induced DNA damage and G2/M phase arrest. Moreover, ITGB1 induced epithelial-mesenchymal transition (EMT) of NSCLC cells. Silencing ITGB1 suppressed the expression and intracellular translocation of Yes-associated protein 1 (YAP1), a downstream effector of ITGB1. Conclusions: ITGB1 may induce radioresistance via affecting DNA repair and YAP1-induced EMT. Taken together, our data suggest that ITGB1 is an attractive therapeutic target to overcome NSCLC cell radioresistance.
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Affiliation(s)
- Yuexian Li
- Department of Oncology, Shengjing Hospital affiliated with China Medical University, Shenyang 110004, China
| | - Cheng Sun
- Department of Oncology, Shengjing Hospital affiliated with China Medical University, Shenyang 110004, China
| | - Yonggang Tan
- Department of Oncology, Shengjing Hospital affiliated with China Medical University, Shenyang 110004, China
| | - Heying Zhang
- Department of Oncology, Shengjing Hospital affiliated with China Medical University, Shenyang 110004, China
| | - Yuchao Li
- School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases
| | - Huawei Zou
- Department of Oncology, Shengjing Hospital affiliated with China Medical University, Shenyang 110004, China
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14
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Jang B, Kim A, Hwang J, Song HK, Kim Y, Oh ES. Emerging Role of Syndecans in Extracellular Matrix Remodeling in Cancer. J Histochem Cytochem 2020; 68:863-870. [PMID: 32623937 PMCID: PMC7711240 DOI: 10.1369/0022155420930112] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 05/06/2020] [Indexed: 12/20/2022] Open
Abstract
The extracellular matrix (ECM) offers a structural basis for regulating cell functions while also acting as a collection point for bioactive molecules and connective tissue cells. To perform pathological functions under a pathological condition, the involved cells need to regulate the ECM to support their altered functions. This is particularly common in the development of cancer. The ECM has been recognized as a key driver of cancer development and progression, and ECM remodeling occurs at all stages of cancer progression. Thus, cancer cells need to change the ECM to support relevant cell surface adhesion receptor-mediated cell functions. In this context, it is interesting to examine how cancer cells regulate ECM remodeling, which is critical to tumor malignancy and metastatic progression. Here, we review how the cell surface adhesion receptor, syndecan, regulates ECM remodeling as cancer progresses, and explore how this can help us better understand ECM remodeling under these pathological conditions.
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Affiliation(s)
- Bohee Jang
- Department of Life Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Ayoung Kim
- Department of Life Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Jisun Hwang
- Department of Life Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Hyun-Kuk Song
- Department of Life Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Yunjeon Kim
- Department of Life Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Eok-Soo Oh
- Department of Life Sciences, Ewha Womans University, Seoul, Republic of Korea
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15
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von der Heyde B, Hallmann A. Targeted migration of pherophorin-S indicates extensive extracellular matrix dynamics in Volvox carteri. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 103:2301-2317. [PMID: 32603539 DOI: 10.1111/tpj.14901] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 06/12/2020] [Accepted: 06/17/2020] [Indexed: 06/11/2023]
Abstract
Hydroxyproline-rich glycoproteins (HRGPs) constitute a major group of proteins of the extracellular matrix (ECM). The multicellular green alga Volvox carteri is a suitable model organism in which to study the evolutionary transition to multicellularity, including the basic principles and characteristics of an ECM. In Volvox, the ECM is dominated by a single HRGP family: the pherophorins. Our inventory amounts to 117 pherophorin-related genes in V. carteri. We focused on a pherophorin with an unexpected characteristic: pherophorin-S is a soluble, non-cross-linked ECM protein. Using transformants expressing a YFP-tagged pherophorin-S we observed the synthesis and secretion of pherophorin-S by somatic cells in vivo, and we then traced the protein during its conspicuous migration to the ECM around prehatching juveniles and its localized concentration there. Our results provide insights into how an ECM zone surrounding the progeny is remotely affected by distantly located parental somatic cells. In view of the properties and migration of pherophorin-S, we conclude that pherophorin-S is likely to act as an ECM plasticizer to allow for dynamic ECM remodeling.
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Affiliation(s)
- Benjamin von der Heyde
- Department of Cellular and Developmental Biology of Plants, University of Bielefeld, Universitätsstr. 25, Bielefeld, 33615, Germany
| | - Armin Hallmann
- Department of Cellular and Developmental Biology of Plants, University of Bielefeld, Universitätsstr. 25, Bielefeld, 33615, Germany
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16
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Kong L, Wang B, Yang X, He B, Hao D, Yan L. Integrin-associated molecules and signalling cross talking in osteoclast cytoskeleton regulation. J Cell Mol Med 2020; 24:3271-3281. [PMID: 32045092 PMCID: PMC7131929 DOI: 10.1111/jcmm.15052] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 01/22/2020] [Accepted: 01/27/2020] [Indexed: 12/30/2022] Open
Abstract
In the ageing skeleton, the balance of bone reconstruction could commonly be broken by the increasing of bone resorption and decreasing of bone formation. Consequently, the bone resorption gradually occupies a dominant status. During this imbalance process, osteoclast is unique cell linage act the bone resorptive biological activity, which is a highly differentiated ultimate cell derived from monocyte/macrophage. The erosive function of osteoclasts is that they have to adhere the bone matrix and migrate along it, in which adhesive cytoskeleton recombination of osteoclast is essential. In that, the podosome is a membrane binding microdomain organelle, based on dynamic actin, which forms a cytoskeleton superstructure connected with the plasma membrane. Otherwise, as the main adhesive protein, integrin regulates the formation of podosome and cytoskeleton, which collaborates with the various molecules including: c-Cbl, p130Cas , c-Src and Pyk2, through several signalling cascades cross talking, including: M-CSF and RANKL. In our current study, we discuss the role of integrin and associated molecules in osteoclastogenesis cytoskeletal, especially podosomes, regulation and relevant signalling cascades cross talking.
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Affiliation(s)
- Lingbo Kong
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Biao Wang
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Xiaobin Yang
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Baorong He
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Dingjun Hao
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
| | - Liang Yan
- Hong-Hui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, China
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17
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18
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Effect of acupotomy on chondrocyte proliferation and expression of CyclinD1, CDK4 and CDK6 in rabbits with knee osteoarthritis. JOURNAL OF TRADITIONAL CHINESE MEDICAL SCIENCES 2019. [DOI: 10.1016/j.jtcms.2019.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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19
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Verma K, Srivastava VK, Datta S. Rab GTPases take centre stage in understanding Entamoeba histolytica biology. Small GTPases 2018; 11:320-333. [PMID: 30273093 DOI: 10.1080/21541248.2018.1528840] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Rab GTPases constitute the largest subgroup in the Ras superfamily of GTPases. It is well established that different Rab GTPases are localized in discrete subcellular localization and regulate the membrane trafficking in nearly all eukaryotic cells. Rab GTPase diversity is often regarded as an expression of vesicular trafficking complexity. The pathogenic amoeba Entamoeba histolytica harbours 91 Rab GTPases which is the highest among the currently available genome sequences from the eukaryotic kingdom. Here, we review the current status of amoebic Rab GTPases diversity, unique biochemical and structural features and summarise their predicted regulators. We discuss how amoebic Rab GTPases are involved in cellular processes such as endocytosis, phagocytosis, and invasion of host cellular components, which are essential for parasite survival and virulence.
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Affiliation(s)
- Kuldeep Verma
- Institute of Science, Nirma University , Ahmedabad, Gujarat, India.,Regional Centre for Biotechnology, NCR Biotech Science Cluster , Faridabad, India
| | | | - Sunando Datta
- Department of Biological Science, Indian Institute of Science Education and Research Bhopal , Bhauri, India
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20
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Gao X, Wei T, Chen J, Ai J, Jin T, Cheng L, Liu Y, Xiao K, Zeng X, Wang K. Cyclic hydrostatic pressure promotes uroplakin expression in human urothelial cells through activation of ERK1/2 signaling. Biochem Biophys Res Commun 2018; 503:2499-2503. [PMID: 30208517 DOI: 10.1016/j.bbrc.2018.07.006] [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: 06/27/2018] [Accepted: 07/02/2018] [Indexed: 02/05/2023]
Abstract
OBJECTIVES To investigate the effect of cyclic hydrostatic pressure on the expression of uroplakins and the role of extracellular regulated protein kinases 1/2 (ERK1/2) in the hydrostatic pressure-induced uroplakin expression of human urothelial cells (UCs). METHODS Human UCs were seeded into a cell culture flask and subjected to cyclic hydrodynamic pressures for 24 h. Pressure parameters were set as follows: static, 100 cm H2O, 200 cm H2O and 300 cm H2O pressure. Real-time polymerase chain reaction (RT-PCR) and western blot were used to detect the expression of uroplakins. The role of the ERK1/2 was investigated using ERK1/2 inhibitor. RESULTS Compared with the 0 cm H2O control group, 200 cm H2O hydrostatic pressure significantly increased the expression of uroplakins, however, 100 cm and 300 cm pressures could not promote uroplakin expression. Hence, ERK1/2 expression was also detected under 200 cm H2O hydrostatic pressure. Western blot showed that 200 cm H2O pressure promoted the expression of ERK1/2. ERK1/2 inhibitor decreased the pressure-induced ERK1/2 activivation and uroplakin expression. CONCLUSIONS Cyclic hydrostatic pressure increases the expression of uroplakins via activating ERK1/2 signaling pathway in human UCs, and 200 cm H2O pressure may be an optimal stress parameter to promote the uroplakin expression.
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Affiliation(s)
- Xiaoshuai Gao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Tangqiang Wei
- Department of Urology, Nanchong Central Hospital, The Second School of Clinical Medicine, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, PR China
| | - Jixiang Chen
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Jianzhong Ai
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Tao Jin
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Liang Cheng
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Yu Liu
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Kaiwen Xiao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Xiongfeng Zeng
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Kunjie Wang
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China.
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21
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Gao X, Wei T, Liao B, Ai J, Zhou L, Gong L, Chen Y, He Q, Cheng L, Wang K. Physiological stretch induced proliferation of human urothelial cells via integrin α6-FAK signaling pathway. Neurourol Urodyn 2018; 37:2114-2120. [PMID: 29953644 DOI: 10.1002/nau.23572] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 02/27/2018] [Indexed: 02/05/2023]
Abstract
AIMS To test a kind of stretch pattern which is the optimum stress parameter to promote human urothelial cells (HUCs) proliferation, and to investigate the roles of integrin subunits and their pathway in the HUCs proliferation induced by physiological stretch. METHODS HUCs were seeded on silicone membrane, and subjected to four kinds of stretch (0,5%,10%,15% elongation) for 24 h, as controlled by a BioDynamic® bioreactor. Cell proliferation, viability and cycle distribution were examined using Cell Counting Kit-8 and flow cytometry, respectively. The gene and protein expression of integrin subunits and focal adhesion kinase (FAK) in each group were assessed by Real-time PCR(RT-PCR) and western blot, respectively. Small interfering RNAs (siRNA) were applied to knockdown integrin α6 and FAK expression in HUCs, and FAK inhibitor was used to validate the role of α6 and FAK in cell proliferation under physiological stretch. RESULTS The proliferation of HUCs were highest in the 5% elongation group compared to static control, 10% and 15% elongation group. RT-PCR and western blot showed that 5% cyclic stretch significantly promoted the expression of integrin α6 and FAK. The stretch-induced cell proliferation and FAK expression was inhibited by siRNA of integrin α6. Further study with FAK inhibitor revealed that elongation promoted proliferation though integrin α6 and FAK signaling pathway. CONCLUSIONS Physiological stretch induced HUCs proliferation via integrin α6-FAK signaling pathway, and 5% elongation may be the optimal stress parameter to promote the cell proliferation.
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Affiliation(s)
- Xiaoshuai Gao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Tangqiang Wei
- Department of Urology, Nanchong Central Hospital, The Second School of Clinical Medicine, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, P.R. China
| | - Banghua Liao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Jianzhong Ai
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Liang Zhou
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Lina Gong
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Yuntian Chen
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Qing He
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Liang Cheng
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Kunjie Wang
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
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22
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Transcriptional response to organic compounds from diverse gasoline and biogasoline fuel emissions in human lung cells. Toxicol In Vitro 2018; 48:329-341. [PMID: 29432896 DOI: 10.1016/j.tiv.2018.02.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 01/30/2018] [Accepted: 02/05/2018] [Indexed: 01/15/2023]
Abstract
Modern vehicles equipped with Gasoline Direct Injection (GDI) engine have emerged as an important source of particulate emissions potentially harmful to human health. We collected and characterized gasoline exhaust particles (GEPs) produced by neat gasoline fuel (E0) and its blends with 15% ethanol (E15), 25% n-butanol (n-But25) and 25% isobutanol (i-But25). To study the toxic effects of organic compounds extracted from GEPs, we analyzed gene expression profiles in human lung BEAS-2B cells. Despite the lowest GEP mass, n-But25 extract contained the highest concentration of polycyclic aromatic hydrocarbons (PAHs), while i-But25 extract the lowest. Gene expression analysis identified activation of the DNA damage response and other subsequent events (cell cycle arrest, modulation of extracellular matrix, cell adhesion, inhibition of cholesterol biosynthesis) following 4 h exposure to all GEP extracts. The i-But25 extract induced the most distinctive gene expression pattern particularly after 24 h exposure. Whereas E0, E15 and n-But25 extract treatments resulted in persistent stress signaling including DNA damage response, MAPK signaling, oxidative stress, metabolism of PAHs or pro-inflammatory response, i-But25 induced changes related to the metabolism of the cellular nutrients required for cell recovery. Our results indicate that i-But25 extract possessed the weakest genotoxic potency possibly due to the low PAH content.
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Simkova D, Kharaishvili G, Korinkova G, Ozdian T, Suchánková-Kleplová T, Soukup T, Krupka M, Galandakova A, Dzubak P, Janikova M, Navratil J, Kahounova Z, Soucek K, Bouchal J. The dual role of asporin in breast cancer progression. Oncotarget 2018; 7:52045-52060. [PMID: 27409832 PMCID: PMC5239534 DOI: 10.18632/oncotarget.10471] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 06/29/2016] [Indexed: 12/18/2022] Open
Abstract
Asporin has been reported as a tumor suppressor in breast cancer, while asporin-activated invasion has been described in gastric cancer. According to our in silico search, high asporin expresion associates with significantly better relapse free survival (RFS) in patients with low-grade tumors but RFS is significantly worse in patients with grade 3 tumors. In line with other studies, we have confirmed asporin expression by RNA scope in situ hybridization in cancer associated fibroblasts. We have also found asporin expression in the Hs578T breast cancer cell line which we confirmed by quantitative RT-PCR and western blotting. From multiple testing, we found that asporin can be downregulated by bone morphogenetic protein 4 while upregulation may be facilited by serum-free cultivation or by three dimensional growth in stiff Alvetex scaffold. Downregulation by shRNA inhibited invasion of Hs578T as well as of CAFs and T47D cells. Invasion of asporin-negative MDA-MB-231 and BT549 breast cancer cells through collagen type I was enhanced by recombinant asporin. Besides other investigations, large scale analysis of aspartic acid repeat polymorphism will be needed for clarification of the asporin dual role in progression of breast cancer.
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Affiliation(s)
- Dana Simkova
- Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Gvantsa Kharaishvili
- Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Gabriela Korinkova
- Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Tomas Ozdian
- Laboratory of Experimental Medicine, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Tereza Suchánková-Kleplová
- Department of Histology and Embryology, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Tomas Soukup
- Department of Histology and Embryology, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Michal Krupka
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Adela Galandakova
- Department of Medical Chemistry and Biochemistry, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Petr Dzubak
- Laboratory of Experimental Medicine, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Maria Janikova
- Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Jiri Navratil
- Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Zuzana Kahounova
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Brno, Czech Republic.,Center of Biomolecular and Cellular Engineering, International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
| | - Karel Soucek
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Brno, Czech Republic.,Center of Biomolecular and Cellular Engineering, International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Jan Bouchal
- Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
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A novel bioreactor system for biaxial mechanical loading enhances the properties of tissue-engineered human cartilage. Sci Rep 2017; 7:16997. [PMID: 29208903 PMCID: PMC5717235 DOI: 10.1038/s41598-017-16523-x] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 11/13/2017] [Indexed: 11/15/2022] Open
Abstract
The ex vivo engineering of autologous cartilage tissues has the potential to revolutionize the clinical management of joint disorders. Yet, high manufacturing costs and variable outcomes associated with tissue-engineered implants are still limiting their application. To improve clinical outcomes and facilitate a wider use of engineered tissues, automated bioreactor systems capable of enhancing and monitoring neotissues are required. Here, we developed an innovative system capable of applying precise uni- or biaxial mechanical stimulation to developing cartilage neotissues in a tightly controlled and automated fashion. The bioreactor allows for simple control over the loading parameters with a user-friendly graphical interface and is equipped with a load cell for monitoring tissue maturation. Applying our bioreactor, we demonstrate that human articular chondrocytes encapsulated in hydrogels composed of gelatin methacryloyl (GelMA) and hyaluronic acid methacrylate (HAMA) respond to uni- and biaxial mechanical stimulation by upregulation of hyaline cartilage-specific marker genes. We further demonstrate that intermittent biaxial mechanostimulation enhances accumulation of hyaline cartilage-specific extracellular matrix. Our study underlines the stimulatory effects of mechanical loading on the biosynthetic activity of human chondrocytes in engineered constructs and the need for easy-to-use, automated bioreactor systems in cartilage tissue engineering.
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Effect of Acupotomy on FAK-PI3K Signaling Pathways in KOA Rabbit Articular Cartilages. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:4535326. [PMID: 29234400 PMCID: PMC5660818 DOI: 10.1155/2017/4535326] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 08/28/2017] [Indexed: 11/18/2022]
Abstract
Objective By observing the needle-knife of KOA rabbit morphology, knee joint cartilage p-FAK, p-PI3K, Aggrecan gene, and protein expression, to study the effect of needle-knife to promote cartilage cell synthesis metabolism mechanism. Method 49 male New Zealand rabbits, randomly divided into normal group (Z), model group (M), model-inhibitors (MP), needle-knife group (D), needle-knife inhibitors group (DP), electroacupuncture group (E), and electroacupuncture inhibitors (EP). RT-PCR and Western Blot were used to test each animal cartilage p-FAK, p-PI3K, and Aggrecan gene and protein expression level. Results Compared with N group, p-FAK and p-PI3K protein and mRNA expression of M group, D group, and E group increased (P < 0.05), while the protein and mRNA expression of Aggrecan reduced (P < 0.05). Compared with M group, p-FAK, p-PI3K, Aggrecan protein, and mRNA of E and D group increased (P < 0.05). Compared with E group, p-FAK, p-PI3K, Aggrecan protein, and mRNA expression of D group increased (P < 0.05); after adding inhibitors, p-FAK, p-PI3K, Aggrecan protein, and mRNA expression reduced (P < 0.05). Conclusion Needle-knife therapy can promote the repairment of cartilage cells by activating FAK-PI3K signaling pathways, promoting the synthesis of cartilage cell metabolism.
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Differential response to doxorubicin in breast cancer subtypes simulated by a microfluidic tumor model. J Control Release 2017; 266:129-139. [PMID: 28939108 DOI: 10.1016/j.jconrel.2017.09.024] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 09/13/2017] [Accepted: 09/15/2017] [Indexed: 02/08/2023]
Abstract
Successful drug delivery and overcoming drug resistance are the primary clinical challenges for management and treatment of cancer. The ability to rapidly screen drugs and delivery systems within physiologically relevant environments is critically important; yet is currently limited due to lack of appropriate tumor models. To address this problem, we developed the Tumor-microenvironment-on-chip (T-MOC), a new microfluidic tumor model simulating the interstitial flow, plasma clearance, and transport of the drug within the tumor. We demonstrated T-MOC's capabilities by assessing the delivery and efficacy of doxorubicin in small molecular form versus hyaluronic acid nanoparticle (NP) formulation in MCF-7 and MDA-MB-231, two cell lines representative of different molecular subtypes of breast cancer. Doxorubicin accumulated and penetrated similarly in both cell lines while the NP accumulated more in MDA-MB-231 than MCF-7 potentially due to binding of hyaluronic acid to CD44 expressed by MDA-MB-231. However, the penetration of the NP was less than the molecular drug due to its larger size. In addition, both cell lines cultured on the T-MOC showed increased resistance to the drug compared to 2D culture where MDA-MB-231 attained a drug-resistant tumor-initiating phenotype indicated by increased CD44 expression. When grown in immunocompromised mice, both cell lines exhibited cell-type-dependent resistance and phenotypic changes similar to T-MOC, confirming its predictive ability for in vivo drug response. This initial characterization of T-MOC indicates its transformative potential for in vitro testing of drug efficacy towards prediction of in vivo outcomes and investigation of drug resistance mechanisms for advancement of personalized medicine.
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Hupe M, Li MX, Kneitz S, Davydova D, Yokota C, Kele J, Hot B, Stenman JM, Gessler M. Gene expression profiles of brain endothelial cells during embryonic development at bulk and single-cell levels. Sci Signal 2017; 10:10/487/eaag2476. [PMID: 28698213 DOI: 10.1126/scisignal.aag2476] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The blood-brain barrier is a dynamic interface that separates the brain from the circulatory system, and it is formed by highly specialized endothelial cells. To explore the molecular mechanisms defining the unique nature of vascular development and differentiation in the brain, we generated high-resolution gene expression profiles of mouse embryonic brain endothelial cells using translating ribosome affinity purification and single-cell RNA sequencing. We compared the brain vascular translatome with the vascular translatomes of other organs and analyzed the vascular translatomes of the brain at different time points during embryonic development. Because canonical Wnt signaling is implicated in the formation of the blood-brain barrier, we also compared the brain endothelial translatome of wild-type mice with that of mice lacking the transcriptional cofactor β-catenin (Ctnnb1). Our analysis revealed extensive molecular changes during the embryonic development of the brain endothelium. We identified genes encoding brain endothelium-specific transcription factors (Foxf2, Foxl2, Foxq1, Lef1, Ppard, Zfp551, and Zic3) that are associated with maturation of the blood-brain barrier and act downstream of the Wnt-β-catenin signaling pathway. Profiling of individual brain endothelial cells revealed substantial heterogeneity in the population. Nevertheless, the high abundance of Foxf2, Foxq1, Ppard, or Zic3 transcripts correlated with the increased expression of genes encoding markers of brain endothelial cell differentiation. Expression of Foxf2 and Zic3 in human umbilical vein endothelial cells induced the production of blood-brain barrier differentiation markers. This comprehensive data set may help to improve the engineering of in vitro blood-brain barrier models.
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Affiliation(s)
- Mike Hupe
- Ludwig Institute for Cancer Research Ltd., Box 240, Stockholm SE-171 77, Sweden. .,Developmental Biochemistry, Theodor Boveri Institute (Biocenter), University of Wuerzburg, Wuerzburg D-97074, Germany
| | - Minerva Xueting Li
- Ludwig Institute for Cancer Research Ltd., Box 240, Stockholm SE-171 77, Sweden.,Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm SE-171 77, Sweden
| | - Susanne Kneitz
- Physiological Chemistry, Theodor Boveri Institute (Biocenter), University of Wuerzburg, Wuerzburg D-97074, Germany
| | - Daria Davydova
- Institute for Clinical Neurobiology, University of Wuerzburg, Wuerzburg D-97078, Germany
| | - Chika Yokota
- Ludwig Institute for Cancer Research Ltd., Box 240, Stockholm SE-171 77, Sweden
| | - Julianna Kele
- Ludwig Institute for Cancer Research Ltd., Box 240, Stockholm SE-171 77, Sweden
| | - Belma Hot
- Ludwig Institute for Cancer Research Ltd., Box 240, Stockholm SE-171 77, Sweden
| | - Jan M Stenman
- Ludwig Institute for Cancer Research Ltd., Box 240, Stockholm SE-171 77, Sweden
| | - Manfred Gessler
- Developmental Biochemistry, Theodor Boveri Institute (Biocenter), University of Wuerzburg, Wuerzburg D-97074, Germany.,Comprehensive Cancer Center Mainfranken, University of Wuerzburg, Wuerzburg D-97074, Germany
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Wang X, Lee J, Ali M, Kim J, Lacerda CMR. Phenotype Transformation of Aortic Valve Interstitial Cells Due to Applied Shear Stresses Within a Microfluidic Chip. Ann Biomed Eng 2017. [DOI: 10.1007/s10439-017-1871-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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29
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Bianconi D, Unseld M, Prager GW. Integrins in the Spotlight of Cancer. Int J Mol Sci 2016; 17:ijms17122037. [PMID: 27929432 PMCID: PMC5187837 DOI: 10.3390/ijms17122037] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 11/17/2016] [Accepted: 11/28/2016] [Indexed: 02/07/2023] Open
Abstract
Integrins are heterodimeric cell surface receptors that bind to different extracellular ligands depending on their composition and regulate all processes which enable multicellular life. In cancer, integrins trigger and play key roles in all the features that were once described as the Hallmarks of Cancer. In this review, we will discuss the contribution of integrins to these hallmarks, including uncontrolled and limitless proliferation, invasion of tumor cells, promotion of tumor angiogenesis and evasion of apoptosis and resistance to growth suppressors, by highlighting the latest findings. Further on, given the paramount role of integrins in cancer, we will present novel strategies for integrin inhibition that are starting to emerge, promising a hopeful future regarding cancer treatment.
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Affiliation(s)
- Daniela Bianconi
- Department of Internal Medicine I, Comprehensive Cancer Center Vienna, Medical University of Vienna, A-1090 Vienna, Austria.
| | - Matthias Unseld
- Department of Internal Medicine I, Comprehensive Cancer Center Vienna, Medical University of Vienna, A-1090 Vienna, Austria.
| | - Gerald W Prager
- Department of Internal Medicine I, Comprehensive Cancer Center Vienna, Medical University of Vienna, A-1090 Vienna, Austria.
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30
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Simkova D, Kharaishvili G, Slabakova E, Murray PG, Bouchal J. Glycoprotein asporin as a novel player in tumour microenvironment and cancer progression. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2016; 160:467-473. [PMID: 27605398 DOI: 10.5507/bp.2016.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 07/08/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Small leucine rich proteoglycans (SLRPs), major non-collagen components of the extracellular matrix (ECM), have multiple biological roles with diverse effects. Asporin, a member of the SLRPs class I, competes with other molecules in binding to collagen and affects its mineralization. Its role in cancer is only now being elucidated. METHODS The PubMed online database was used to search relevant reviews and original articles. Furthermore, altered asporin expression was analysed in publicly available genome-wide expression data at the Gene Expression Omnibus database. RESULTS Polymorphisms in the N-terminal polyaspartate domain, which binds calcium, are associated with osteoarthritis and prostate cancer. Asporin also promotes the progression of scirrhous gastric cancer where it is required for coordinated invasion by cancer associated fibroblasts and cancer cells. Besides the enhanced expression of asporin observed in multiple cancer types, such as breast, prostate, gastric, pancreas and colon cancer, tumour suppressive effects of asporin were described in triple-negative breast cancer. We also discuss a number of factors modulating asporin expression in different cell types relevant for alterations toing the tumour microenvironment. CONCLUSION The apparent contradicting tumour promoting and suppressive effects of asporin require further investigation. Deciphering the role of asporin and other SLRPs in tumour-stroma interactions is needed for a better understanding of cancer progression and potentially also for novel tumour microenvironment based therapies.
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Affiliation(s)
- Dana Simkova
- Department of Clinical and Molecular Pathology and Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Gvantsa Kharaishvili
- Department of Clinical and Molecular Pathology and Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Eva Slabakova
- Department of Cytokinetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Brno, Czech Republic
| | - Paul G Murray
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Jan Bouchal
- Department of Clinical and Molecular Pathology and Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
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Shin K, Klosterhoff BS, Han B. Characterization of Cell-Type-Specific Drug Transport and Resistance of Breast Cancers Using Tumor-Microenvironment-on-Chip. Mol Pharm 2016; 13:2214-23. [PMID: 27228477 DOI: 10.1021/acs.molpharmaceut.6b00131] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Heterogeneous response and resistance of cancer cells to chemotherapeutic drugs pose a significant challenge for successful cancer treatments. In this study, an integrated experimental and theoretical analysis of cellular drug transport was developed. The experimental platform, called tumor-microenvironment-on-chip (T-MOC), is a microfluidic platform where cancer cells were cultured within a three-dimensional extracellular matrix perfused with interstitial fluid. Three types of human breast cancer cell lines (MCF-7, MDA-MB-231, and SUM-159PT) were cultured on this T-MOC platform, and their drug response and resistance to doxorubicin were characterized by time-lapse quantitative fluorescence microscopy. To study the effects of nanoparticle-mediated drug delivery, the transport and action of doxorubicin encapsulated nanoparticles were also examined. Based on the experimental data obtained, a theoretical model was developed to quantify and ultimately predict the cellular transport processes of drugs cell-type specifically. The results demonstrate that the cellular drug transport can be cell-type-specifically quantified by rate constants representing the uptake and efflux of doxorubicin across the cellular membrane.
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Affiliation(s)
- Kyeonggon Shin
- School of Mechanical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
| | - Brett S Klosterhoff
- School of Mechanical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
| | - Bumsoo Han
- School of Mechanical Engineering, Purdue University , West Lafayette, Indiana 47907, United States.,Weldon School of Biomedical Engineering, Birck Nanotechnology Center, and Purdue Center for Cancer Research, Purdue University , West Lafayette, Indiana 47907, United States
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32
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Therapeutic inhibition of breast cancer bone metastasis progression and lung colonization: breaking the vicious cycle by targeting α5β1 integrin. Breast Cancer Res Treat 2016; 157:489-501. [PMID: 27255534 DOI: 10.1007/s10549-016-3844-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 05/24/2016] [Indexed: 10/21/2022]
Abstract
At diagnosis, 10 % of breast cancer patients already have locally advanced or metastatic disease; moreover, metastasis eventually develops in at least 40 % of early breast cancer patients. Osteolytic bone colonization occurs in 80-85 % of metastatic breast cancer patients and is thought to be an early step in metastatic progression. Thus, breast cancer displays a strong preference for metastasis to bone, and most metastatic breast cancer patients will experience its complications. Our prior research has shown that the α5β1 integrin fibronectin receptor mediates both metastatic and angiogenic invasion. We invented a targeted peptide inhibitor of activated α5β1, Ac-PHSCN-NH2 (PHSCN), as a validated lead compound to impede both metastatic invasion and neovascularization. Systemic PHSCN monotherapy prevented disease progression for up to 14 months in Phase I clinical trial. Here, we report that the next-generation construct, Ac-PhScN-NH2 (PhScN), which contains D-isomers of histidine (h) and cysteine (c), is greater than 100,000-fold more potent than PHSCN at blocking basement membrane invasion. Moreover, PhScN is also up to 10,000-fold more potent than PHSCN at inhibiting lung extravasation and colonization in athymic mice for both MDA-MB-231 metastatic and SUM149PT inflammatory breast cancer cells. Furthermore, we show that systemic treatment with 50 mg/kg PhScN monotherapy reduces established intratibial MDA-MB-231 bone colony progression by 80 %. Thus, PhScN is a highly potent, well-tolerated inhibitor of both lung colonization and bone colony progression.
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Zhao T, Wang H, Ma H, Wang H, Chen B, Deng Y. Starvation after Cobalt-60 γ-Ray Radiation Enhances Metastasis in U251 Glioma Cells by Regulating the Transcription Factor SP1. Int J Mol Sci 2016; 17:386. [PMID: 27058528 PMCID: PMC4848883 DOI: 10.3390/ijms17040386] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/08/2016] [Accepted: 03/10/2016] [Indexed: 01/15/2023] Open
Abstract
Radiation is of clinical importance during glioma therapy; however, vasculature damage is observed over the treatment course. This type of tissue damage might lead to starvation conditions, affecting tumor metastasis. To test this possibility, we compared starvation conditions in conjunction with radiation treatment to monitor metastatic ability in the U251 glioma cell line. Transcriptome, western blot, and immunofluorescence analyses were used to measure the RNA and protein expression changes of the U251 cells after various treatments. We found that starvation combined with radiation treatment yielded the most significant expression changes in metastasis-related factors compared to that in the control groups. In addition, a metastasis assay was used to directly measure the metastatic ability of the treated cells, which confirmed that the U251 cells treated with starvation combined with radiation possessed the highest metastatic ability. Furthermore, bioinformatics analysis demonstrated that SP1 represented a common transcription factor associated with changes in metastasis-related factors. Blocking SP1 activity by an inhibitor suppressed the starvation-plus-radiation treatment-mediated enhancement of U251 cell metastasis. Our study provides the first evidence that starvation caused by radiation might play a significant role in enhancing the ability of the glioma cell line U251 to metastasize via regulation of the transcription factor SP1.
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Affiliation(s)
- Tuo Zhao
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
| | - Hailong Wang
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
| | - Hong Ma
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
| | - Hao Wang
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
| | - Bo Chen
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
| | - Yulin Deng
- School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
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34
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Brooks DLP, Schwab LP, Krutilina R, Parke DN, Sethuraman A, Hoogewijs D, Schörg A, Gotwald L, Fan M, Wenger RH, Seagroves TN. ITGA6 is directly regulated by hypoxia-inducible factors and enriches for cancer stem cell activity and invasion in metastatic breast cancer models. Mol Cancer 2016; 15:26. [PMID: 27001172 PMCID: PMC4802728 DOI: 10.1186/s12943-016-0510-x] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 03/11/2016] [Indexed: 11/27/2022] Open
Abstract
Background Hypoxia-inducible factors (HIFs) are well-established mediators of tumor growth, the epithelial to mesenchymal transition (EMT) and metastasis. In several types of solid tumors, including breast cancers, the HIFs play a critical role in maintaining cancer stem cell (CSC) activity. Thus, we hypothesized that HIFs may also regulate transcription of markers of breast CSC activity. One approach to enrich for breast cells with stem-like phenotypes is FACS sorting, in which sub-populations of live cells are gated based on the expression of cell surface antigens, including various integrin subunits. Integrin alpha 6 (ITGA6; CD49f) is routinely used in combination with other integrin subunits to enrich for breast stem cells by FACS. Integrins not only mediate interactions with the extracellular matrix (ECM), but also drive intracellular signaling events that communicate from the tumor microenvironment to inside of the tumor cell to alter phenotypes including migration and invasion. Methods We used two models of metastatic breast cancer (MBC), polyoma middle T (MMTV-PyMT) and MDA-MB-231 cells, to compare the expression of ITGA6 in wild type and knockout (KO) or knockdown cells. Chromatin immunoprecipitation (ChIP) and luciferase reporter assays verified that ITGA6 is a direct HIF transcriptional target. We also used FACS sorting to enrich for CD49f + cells to compare tumorsphere formation, tumor initiating cell activity, invasion and HIF activity relative to CD49fneg or low cells. Knockdown of ITGA6 significantly reduced invasion, whereas re-expression of ITGA6 in the context of HIF knockdown partially rescued invasion. A search of public databases also revealed that ITGA6 expression is an independent prognostic factor of survival in breast cancer patients. Results We report that ITGA6 is a HIF-dependent target gene and that high ITGA6 expression enhances invasion and tumor-initiating cell activities in models of MBC. Moreover, cells that express high levels of ITGA6 are enriched for HIF-1α expression and the expression of HIF-dependent target genes. Conclusions Our data suggest that HIF-dependent regulation of ITGA6 is one mechanism by which sorting for CD49f + cells enhances CSC and metastatic phenotypes in breast cancers. Our results are particularly relevant to basal-like breast cancers which express higher levels of the HIFα subunits, core HIF-dependent target genes and ITGA6 relative to other molecular subtypes. Electronic supplementary material The online version of this article (doi:10.1186/s12943-016-0510-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Danielle L Peacock Brooks
- Center for Cancer Research and the Department of Pathology and Laboratory Medicine, The University of Tennessee Health Science Center, Memphis, TN, 38163, USA.,Present address: National Cancer Institute, Center for Cancer Research, Women's Malignancies Branch, Bethesda, MD, 20892, USA
| | - Luciana P Schwab
- Center for Cancer Research and the Department of Pathology and Laboratory Medicine, The University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Raisa Krutilina
- Center for Cancer Research and the Department of Pathology and Laboratory Medicine, The University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Deanna N Parke
- Center for Cancer Research and the Department of Pathology and Laboratory Medicine, The University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Aarti Sethuraman
- Center for Cancer Research and the Department of Pathology and Laboratory Medicine, The University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - David Hoogewijs
- Institute of Physiology and Zürich Center for Integrative Human Physiology, University of Zürich, CH-8057, Zürich, Switzerland.,Present address: Institute of Physiology, University of Duisburg-Essen, 45122, Essen, Germany
| | - Alexandra Schörg
- Institute of Physiology and Zürich Center for Integrative Human Physiology, University of Zürich, CH-8057, Zürich, Switzerland
| | - Lauren Gotwald
- Center for Cancer Research and the Department of Pathology and Laboratory Medicine, The University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Meiyun Fan
- Center for Cancer Research and the Department of Pathology and Laboratory Medicine, The University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Roland H Wenger
- Institute of Physiology and Zürich Center for Integrative Human Physiology, University of Zürich, CH-8057, Zürich, Switzerland
| | - Tiffany N Seagroves
- Center for Cancer Research and the Department of Pathology and Laboratory Medicine, The University of Tennessee Health Science Center, Memphis, TN, 38163, USA.
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Dickreuter E, Eke I, Krause M, Borgmann K, van Vugt MA, Cordes N. Targeting of β1 integrins impairs DNA repair for radiosensitization of head and neck cancer cells. Oncogene 2016; 35:1353-62. [PMID: 26073085 DOI: 10.1038/onc.2015.212] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 04/08/2015] [Accepted: 04/12/2015] [Indexed: 11/09/2022]
Abstract
β1 Integrin-mediated cell-extracellular matrix interactions allow cancer cell survival and confer therapy resistance. It was shown that inhibition of β1 integrins sensitizes cells to radiotherapy. Here, we examined the impact of β1 integrin targeting on the repair of radiation-induced DNA double-strand breaks (DSBs). β1 Integrin inhibition was accomplished using the monoclonal antibody AIIB2 and experiments were performed in three-dimensional cell cultures and tumor xenografts of human head and neck squamous cell carcinoma (HNSCC) cell lines. AIIB2, X-ray irradiation, small interfering RNA-mediated knockdown and Olaparib treatment were performed and residual DSB number, protein and gene expression, non-homologous end joining (NHEJ) activity as well as clonogenic survival were determined. β1 Integrin targeting impaired repair of radiogenic DSB (γH2AX/53BP1, pDNA-PKcs T2609 foci) in vitro and in vivo and reduced the protein expression of Ku70, Rad50 and Nbs1. Further, we identified Ku70, Ku80 and DNA-PKcs but not poly(ADP-ribose) polymerase (PARP)-1 to reside in the β1 integrin pathway. Intriguingly, combined inhibition of β1 integrin and PARP using Olaparib was significantly more effective than either treatment alone in non-irradiated and irradiated HNSCC cells. Here, we support β1 integrins as potential cancer targets and highlight a regulatory role for β1 integrins in the repair of radiogenic DNA damage via classical NHEJ. Further, the data suggest combined targeting of β1 integrin and PARP as promising approach for radiosensitization of HNSCC.
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Affiliation(s)
- E Dickreuter
- OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - I Eke
- OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
- Department of Radiation Oncology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - M Krause
- OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
- Department of Radiation Oncology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiooncology, Dresden, Germany
- German Cancer Consortium (DKTK), 01307 Dresden, Germany, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - K Borgmann
- Laboratory of Radiobiology and Experimental Radiooncology, Clinic of Radiotherapy and Radiooncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - M A van Vugt
- Department of Medical Oncology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - N Cordes
- OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
- Department of Radiation Oncology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiooncology, Dresden, Germany
- German Cancer Consortium (DKTK), 01307 Dresden, Germany, and German Cancer Research Center (DKFZ), Heidelberg, Germany
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Hiraoka C, Toki F, Shiraishi K, Sayama K, Nishimura EK, Miura H, Higashiyama S, Nanba D. Two clonal types of human skin fibroblasts with different potentials for proliferation and tissue remodeling ability. J Dermatol Sci 2016; 82:84-94. [PMID: 26867959 DOI: 10.1016/j.jdermsci.2016.01.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 01/05/2016] [Accepted: 01/25/2016] [Indexed: 11/19/2022]
Abstract
BACKGROUND Skin fibroblast heterogeneity is of growing interest due to its relevance in not only skin development but also cutaneous wound healing. However, the characterization of human dermal fibroblasts at a clonal level has not been accomplished and their functional heterogeneity remains poorly understood. OBJECTIVE The aim of this study was to define the clonal heterogeneity of human dermal fibroblasts. METHODS Isolated human dermal fibroblasts were clonally expanded and categorized by comprehensive phenotypic and gene expression profiling. RESULTS Single fibroblasts were significantly multiplied and efficiently cloned without chromosomal abnormalities under hypoxic conditions. Individual clones were heterogeneous in their proliferative capacity, and gene expression profiling revealed differences in the expression of genes involved in extracellular matrix synthesis and degradation. Each cloned fibroblast also had different abilities in terms of collagen remodeling. All phenotypic and gene expression data were analyzed with Spearman's rank correlation, and fibroblasts were categorized into at least two functional clonal types. One was highly proliferative, while the other was less proliferative but had the ability to remodel the tissue architecture. The proliferative clones were predominant in infants, but decreased with physiological aging. CONCLUSION This study provides strong evidence for the functional heterogeneity of human dermal fibroblasts at a clonal level, which has implications regarding skin repair and aging.
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Affiliation(s)
- Chihiro Hiraoka
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon, Ehime 791-0295, Japan; Department of Biochemistry and Molecular Genetics, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan; Department of Bone and Joint Surgery, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan
| | - Fujio Toki
- Department of Biochemistry and Molecular Genetics, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan; Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Ken Shiraishi
- Department of Dermatology, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan
| | - Koji Sayama
- Department of Dermatology, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan
| | - Emi K Nishimura
- Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Hiromasa Miura
- Department of Bone and Joint Surgery, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon, Ehime 791-0295, Japan; Department of Biochemistry and Molecular Genetics, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan
| | - Daisuke Nanba
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center (PROS), Ehime University, Toon, Ehime 791-0295, Japan; Department of Biochemistry and Molecular Genetics, Graduate School of Medicine, Ehime University, Toon, Ehime 791-0295, Japan; Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan.
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Modulating the Substrate Stiffness to Manipulate Differentiation of Resident Liver Stem Cells and to Improve the Differentiation State of Hepatocytes. Stem Cells Int 2016; 2016:5481493. [PMID: 27057172 PMCID: PMC4737459 DOI: 10.1155/2016/5481493] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 10/12/2015] [Accepted: 10/13/2015] [Indexed: 12/14/2022] Open
Abstract
In many cell types, several cellular processes, such as differentiation of stem/precursor cells, maintenance of differentiated phenotype, motility, adhesion, growth, and survival, strictly depend on the stiffness of extracellular matrix that, in vivo, characterizes their correspondent organ and tissue. In the liver, the stromal rigidity is essential to obtain the correct organ physiology whereas any alteration causes liver cell dysfunctions. The rigidity of the substrate is an element no longer negligible for the cultivation of several cell types, so that many data so far obtained, where cells have been cultured on plastic, could be revised. Regarding liver cells, standard culture conditions lead to the dedifferentiation of primary hepatocytes, transdifferentiation of stellate cells into myofibroblasts, and loss of fenestration of sinusoidal endothelium. Furthermore, standard cultivation of liver stem/precursor cells impedes an efficient execution of the epithelial/hepatocyte differentiation program, leading to the expansion of a cell population expressing only partially liver functions and products. Overcoming these limitations is mandatory for any approach of liver tissue engineering. Here we propose cell lines as in vitro models of liver stem cells and hepatocytes and an innovative culture method that takes into account the substrate stiffness to obtain, respectively, a rapid and efficient differentiation process and the maintenance of the fully differentiated phenotype.
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Han B, Qu C, Park K, Konieczny SF, Korc M. Recapitulation of complex transport and action of drugs at the tumor microenvironment using tumor-microenvironment-on-chip. Cancer Lett 2015; 380:319-29. [PMID: 26688098 DOI: 10.1016/j.canlet.2015.12.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Revised: 12/01/2015] [Accepted: 12/02/2015] [Indexed: 12/15/2022]
Abstract
Targeted delivery aims to selectively distribute drugs to targeted tumor tissues but not to healthy tissues. This can address many clinical challenges by maximizing the efficacy but minimizing the toxicity of anti-cancer drugs. However, a complex tumor microenvironment poses various barriers hindering the transport of drugs and drug delivery systems. New tumor models that allow for the systematic study of these complex environments are highly desired to provide reliable test beds to develop drug delivery systems for targeted delivery. Recently, research efforts have yielded new in vitro tumor models, the so called tumor-microenvironment-on-chip, that recapitulate certain characteristics of the tumor microenvironment. These new models show benefits over other conventional tumor models, and have the potential to accelerate drug discovery and enable precision medicine. However, further research is warranted to overcome their limitations and to properly interpret the data obtained from these models. In this article, key features of the in vivo tumor microenvironment that are relevant to drug transport processes for targeted delivery were discussed, and the current status and challenges for developing in vitro transport model systems were reviewed.
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Affiliation(s)
- Bumsoo Han
- School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA; Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA; Birck Nanotechnology Center, Purdue University, West Lafayette, IN, USA.
| | - Chunjing Qu
- Department of Biological Science, Purdue University, West Lafayette, IN, USA
| | - Kinam Park
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA; Birck Nanotechnology Center, Purdue University, West Lafayette, IN, USA
| | - Stephen F Konieczny
- Department of Biological Science, Purdue University, West Lafayette, IN, USA
| | - Murray Korc
- Departments of Medicine, Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Pancreatic Cancer Signature Center, Indiana University Simon Cancer Center, Indianapolis, IN 46202, USA
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Xia P, Shen S, Lin Q, Cheng K, Ren S, Gao M, Li X. Low-Intensity Pulsed Ultrasound Treatment at an Early Osteoarthritis Stage Protects Rabbit Cartilage From Damage via the Integrin/Focal Adhesion Kinase/Mitogen-Activated Protein Kinase Signaling Pathway. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2015; 34:1991-1999. [PMID: 26396170 DOI: 10.7863/ultra.14.10016] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 02/10/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVES To investigate whether low-intensity pulsed ultrasound (US) has different protective effects on early and late rabbit osteoarthritis cartilage via the integrin/focal adhesion kinase (FAK)/mitogen-activated protein kinase (MAPK) signaling pathway. METHODS Thirty-six New Zealand White rabbits were divided into early control, early osteoarthritis, early treatment, late control, late osteoarthritis, and late treatment groups. The early and late osteoarthritis and treatment groups underwent anterior cruciate ligament transection. The remaining groups underwent sham operations with knee joint exposure. The early and late treatment groups were exposed to low-intensity pulsed US 4 and 8 weeks after surgery. After 6 weeks of US exposure, pathologic changes on the articular surface of the femoral condyle were assessed by modified Mankin scores. Expression of type II collagen, matrix metalloproteinase, integrin β1, phosphorylated FAK, and MAPKs (including extracellular signal-regulated kinase 1/2, MAPK 38, and c-Jun N-terminal kinase) was assessed by Western blot analysis. RESULTS Cartilage damage was less severe in the early treatment group than the early osteoarthritis group. The Mankin score was significantly lower in the early treatment group than the early osteoarthritis group (P < .05). There was no significant difference in cartilage damage or Mankin score between the late treatment and late osteoarthritis groups. There was a significant increase in type II collagen expression but a significant decrease in matrix metalloproteinase 13 expression in the early treatment group compared to the early osteoarthritis group, whereas no significant difference was found between the late treatment and late osteoarthritis groups. Integrin β1 and phosphorylated FAK expression was significantly higher, and phosphorylated extracellular signal-regulated kinase 1/2 and phosphorylated MAPK 38 expression was significantly lower in the early treatment group than the early osteoarthritis group. CONCLUSIONS Our findings indicate that low-intensity pulsed US protects cartilage from damage in early-stage osteoarthritis via the integrin/FAK/MAPK pathway.
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Affiliation(s)
- Peng Xia
- Department of Rehabilitation Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Shihao Shen
- Department of Rehabilitation Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Qiang Lin
- Department of Rehabilitation Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Kai Cheng
- Department of Rehabilitation Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Shasha Ren
- Department of Rehabilitation Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Mingxia Gao
- Department of Rehabilitation Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xueping Li
- Department of Rehabilitation Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
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Short-term effects of microstructured surfaces: role in cell differentiation toward a contractile phenotype. J Appl Biomater Funct Mater 2015; 13:e92-9. [PMID: 24756781 PMCID: PMC6161806 DOI: 10.5301/jabfm.5000186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2013] [Indexed: 11/20/2022] Open
Abstract
Cell adhesion plays a key role in cell behavior, in terms of migration, proliferation, differentiation and apoptosis. All of these events concur with tissue regeneration and remodeling mechanisms, integrating a complex network of intracellular signaling modules. Morphogenetic responses, which involve changes in cell shape, proliferation and differentiation, are thought to be controlled by both biochemical and biophysical cues. Indeed, the extracellular matrix not only displays adhesive ligands necessary for cell adhesion but also plays an essential biomechanical role — responsible, for instance, for the acquisition of the contractile phenotype. The substrate topography around the forming tissues and the associated mechanical stresses that are generated regulate cellular morphology, proliferation and differentiation. Thus, the ability to tailor topographical features around cells can be a crucial design parameter in tissue engineering applications, inducing cells to exhibit the required performances. In this work, we designed micropillared substrates using highly spaced arrays (interspacing equal to 25 μm) to evaluate the effects of topography on C2C12 myoblasts' adhesion and differentiation. Optical and fluorescence microscopy images were used to observe cell adhesion, together with Western blot analysis on vinculin and focal adhesion kinase (FAK) expression, a protein highly involved in adhesive processes. Differentiation marker (Myf5, myogenin and myosin heavy chain [MHC]) expression was also studied, in relation to the effect of different substrate topographies on the enhancement of a contractile phenotype. Our results demonstrated that microstructured surfaces may play a key role in the regeneration of functional tissues.
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Yin JJ, Zhou ZW, Zhou SF. Cyclodextrin-based targeting strategies for tumor treatment. Drug Deliv Transl Res 2015; 3:364-74. [PMID: 25788282 DOI: 10.1007/s13346-013-0140-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The efficacy and applicability of anticancer drugs are greatly restricted by severe systemic toxicities and drug resistance. Targeting drug delivery strategies have been developed to prevent the shortcomings of chemotherapy. Among various approaches to specifically target drug-loaded carrier systems to the required pathological sites, ligand-attached cyclodextrin-based targeting complexes are a promising drug delivery system, which is achieved mainly through specific molecular interactions between the drugs and cell surface receptors. The principal targeting tactics include conjugation of cyclodextrin with targeting moieties or encapsulation drugs in cyclodextrins. The cyclodextrin-based supramolecules, polymers, or nanoparticles bearing bioactive substances such as folate, estrogens, carbohydrates, peptides, etc. have been reviewed.
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Affiliation(s)
- Juan-Juan Yin
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL, 33612, USA
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Jin C, Ye QH, Yuan FL, Gu YL, Li JP, Shi YH, Shen XM, Bo-Liu, Lin ZH. Involvement of acid-sensing ion channel 1α in hepatic carcinoma cell migration and invasion. Tumour Biol 2015; 36:4309-17. [DOI: 10.1007/s13277-015-3070-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 01/08/2015] [Indexed: 01/01/2023] Open
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Gautier HO, Thompson AJ, Achouri S, Koser DE, Holtzmann K, Moeendarbary E, Franze K. Atomic force microscopy-based force measurements on animal cells and tissues. Methods Cell Biol 2015; 125:211-35. [DOI: 10.1016/bs.mcb.2014.10.005] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Wu J, Li Y, Dang YZ, Gao HX, Jiang JL, Chen ZN. HAb18G/CD147 promotes radioresistance in hepatocellular carcinoma cells: a potential role for integrin β1 signaling. Mol Cancer Ther 2014; 14:553-63. [PMID: 25534361 DOI: 10.1158/1535-7163.mct-14-0618] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Radiotherapy has played a limited role in the treatment of hepatocellular carcinoma (HCC) due to the risk of tumor radioresistance. A previous study in our laboratory confirmed that CD147 interacts with integrin β1 and plays an important role in modulating the malignant properties of HCC cells. In this study, we further evaluated the role of CD147 in the radioresistance of HCC and as a potential target for improving radiosensitivity. Upon irradiation, the colony formation, apoptosis, cell-cycle distribution, migration, and invasion of SMMC-7721, CD147-knockout SMMC-7721, HepG2, and CD147-knockdown HepG2 cells were determined. A nude mouse xenograft model and a metastatic model of HCC were used to detect the role of CD147 in radioresistance in vivo. Deletion of HAb18G/CD147 significantly enhanced the radiosensitivity of SMMC-7721 and HepG2 cells, and knocking out HAb18G/CD147 in SMMC-7721 cells attenuated irradiation-enhanced migration and invasion. The knockout and antibody blockade of CD147 decreased the tumor growth and metastatic potentials of HCC cells under irradiation. CD147-deleted SMMC-7721 cells showed diminished levels of calpain, cleaved talin, active integrin β1, and decreased p-FAK (Tyr397) and p-Akt (Ser473) levels. FAK and PI3K inhibitors, as well as integrin β1 antibodies, increased the radiation-induced apoptosis of SMMC-7721 cells. Our data provide evidence for CD147 as an important determinant of radioresistance via the regulation of integrin β1 signaling. Inhibition of the HAb18G/CD147 integrin interaction may improve the efficiency of radiosensitivity and provide a potential new approach for HCC therapy.
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Affiliation(s)
- Jiao Wu
- Cell Engineering Research Center and Department of Cell Biology, State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi'an, China
| | - Yong Li
- Cell Engineering Research Center and Department of Cell Biology, State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi'an, China. Department of Oncology, PLA 323 Hospital, Xi'an, China
| | - Ya-Zheng Dang
- Department of Oncology, PLA 323 Hospital, Xi'an, China
| | | | - Jian-Li Jiang
- Cell Engineering Research Center and Department of Cell Biology, State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi'an, China.
| | - Zhi-Nan Chen
- Cell Engineering Research Center and Department of Cell Biology, State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi'an, China.
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Choi H, Kim M, Ahn SI, Cho EG, Lee TR, Shin JH. Regulation of pigmentation by substrate elasticity in normal human melanocytes and melanotic MNT1 human melanoma cells. Exp Dermatol 2014; 23:172-7. [PMID: 24517137 DOI: 10.1111/exd.12343] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/05/2014] [Indexed: 01/15/2023]
Abstract
The elasticity of the cellular microenvironment is a key regulator of cellular physiology in many cell types. To investigate the effects of substrate stiffness on the pigmentation process, we cultured normal human melanocytes (NHM) and MNT1 melanoma cells on laminin-coated polydimethylsiloxane (PDMS) substrates of different stiffness. The dendricity of NHM and MNT1 cells was reduced as the substrate stiffness decreased, and the degree of melanosome transfer from NHM or MNT1 cells to normal human keratinocytes was decreased on softer substrates with the reduced dendricity. Gene and protein expressions of MITF, tyrosinase, TRP2, and gp100/PMEL17 exhibited a consistent decreasing trend with the decreasing stiffness. Because the stiffness sensing is mediated by focal adhesion complex through integrin receptors, we checked laminin specific integrin alpha 6 and p-FAK for MNT1 cells to observe that the substrate adhesion was weakened as the substrate stiffness decreased. Weaker adhesion on a softer substrate was accompanied by dynamic shape changes in MNT1 cells with higher speed and larger scattering. Dendritic MNT1 cells cultured on a stiffer substrate exhibited lower migration with smaller root mean squared displacement. These results demonstrate the possibility that skin pigmentation can be influenced by mechanical properties of the cellular microenvironment and can increase when the skin becomes stiff.
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Affiliation(s)
- Hyunjung Choi
- R&D Center, AmorePacific Corporation, Giheung-gu, Yongin-si, Gyeonggi-do, Republic of Korea
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Paul S, Ghandhi SA, Weber W, Doyle-Eisele M, Melo D, Guilmette R, Amundson SA. Gene expression response of mice after a single dose of 137CS as an internal emitter. Radiat Res 2014; 182:380-9. [PMID: 25162453 DOI: 10.1667/rr13466.1] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Cesium-137 is a radionuclide of concern in fallout from reactor accidents or nuclear detonations. When ingested or inhaled, it can expose the entire body for an extended period of time, potentially contributing to serious health consequences ranging from acute radiation syndrome to increased cancer risks. To identify changes in gene expression that may be informative for detecting such exposure, and to begin examining the molecular responses involved, we have profiled global gene expression in blood of male C57BL/6 mice injected with 137CsCl. We extracted RNA from the blood of control or 137CsCl-injected mice at 2, 3, 5, 20 or 30 days after exposure. Gene expression was measured using Agilent Whole Mouse Genome Microarrays, and the data was analyzed using BRB-ArrayTools. Between 466-6,213 genes were differentially expressed, depending on the time after 137Cs administration. At early times (2-3 days), the majority of responsive genes were expressed above control levels, while at later times (20-30 days) most responding genes were expressed below control levels. Numerous genes were overexpressed by day 2 or 3, and then underexpressed by day 20 or 30, including many Tp53-regulated genes. The same pattern was seen among significantly enriched gene ontology categories, including those related to nucleotide binding, protein localization and modification, actin and the cytoskeleton, and in the integrin signaling canonical pathway. We compared the expression of several genes three days after 137CsCl injection and three days after an acute external gamma-ray exposure, and found that the internal exposure appeared to produce a more sustained response. Many common radiation-responsive genes are altered by internally administered 137Cs, but the gene expression pattern resulting from continued irradiation at a decreasing dose rate is extremely complex, and appears to involve a late reversal of much of the initial response.
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Affiliation(s)
- Sunirmal Paul
- a Center for Radiological Research, Columbia University Medical Center, New York, New York 10032
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Li C, Yang Z, Du Y, Tang H, Chen J, Hu D, Fan Z. BCMab1, a monoclonal antibody against aberrantly glycosylated integrin α3β1, has potent antitumor activity of bladder cancer in vivo. Clin Cancer Res 2014; 20:4001-13. [PMID: 25002124 DOI: 10.1158/1078-0432.ccr-13-3397] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE To identify a novel biomarker for bladder cancer targeting therapy. EXPERIMENTAL DESIGN The human bladder cancer cell line T24 cells were used as immunogen to generate mouse monoclonal antibodies. We screened and identified a specific antibody BCMab1 against bladder cancer. We examined BCMab1 antigen expression in the patients with bladder cancer through immunohistochemical staining and investigated the BCMab1 antigen association with clinical severity. We detected the antitumor activity of BCMab1 antibody and investigated its therapeutic efficacy by subcutaneous and orthotopic bladder cancer models. RESULTS We developed a new monoclonal antibody BCMab1 against bladder cancer that specifically recognized the aberrantly glycosylated Integrin α3β1 epitope on bladder cancer cells. Expression of the BCMab1 antigen was consistent with clinical severity and prognosis of bladder cancer. The glycosyltransferase GALNT1 could contribute to aberrant glycosylation of Integrin α3. The aberrant glycosylation of integrin α3-activated integrin signaling to initiate FAK activation. BCMab1 could block Integrin engagement to inhibit its signaling leading to cell-cycle arrest. In addition, BCMab1 enhanced FcγR-dependent antitumor activity in vivo. CONCLUSIONS BCMab1 antigen is a new biomarker for bladder cancer. BCMab1 antibody exhibited potent antitumor activity against bladder cancer in vivo.
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Affiliation(s)
- Chong Li
- CAS Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Zhao Yang
- CAS Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Ying Du
- CAS Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Haidong Tang
- CAS Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Jun Chen
- CAS Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Deqing Hu
- CAS Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Zusen Fan
- CAS Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
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A minimally invasive method for retrieving single adherent cells of different types from cultures. Sci Rep 2014; 4:5424. [PMID: 24957932 PMCID: PMC4067612 DOI: 10.1038/srep05424] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 06/05/2014] [Indexed: 01/08/2023] Open
Abstract
The field of single-cell analysis has gained a significant momentum over the last decade. Separation and isolation of individual cells is an indispensable step in almost all currently available single-cell analysis technologies. However, stress levels introduced by such manipulations remain largely unstudied. We present a method for minimally invasive retrieval of selected individual adherent cells of different types from cell cultures. The method is based on a combination of mechanical (shear flow) force and biochemical (trypsin digestion) treatment. We quantified alterations in the transcription levels of stress response genes in individual cells exposed to varying levels of shear flow and trypsinization. We report optimal temperature, RNA preservation reagents, shear force and trypsinization conditions necessary to minimize changes in the stress-related gene expression levels. The method and experimental findings are broadly applicable and can be used by a broad research community working in the field of single cell analysis.
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Tong Z, Zerdoum AB, Duncan RL, Jia X. Dynamic vibration cooperates with connective tissue growth factor to modulate stem cell behaviors. Tissue Eng Part A 2014; 20:1922-34. [PMID: 24456068 DOI: 10.1089/ten.tea.2013.0496] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Vocal fold disorders affect 3-9% of the U.S. population. Tissue engineering offers an alternative strategy for vocal fold repair. Successful engineering of vocal fold tissues requires a strategic combination of therapeutic cells, biomimetic scaffolds, and physiologically relevant mechanical and biochemical factors. Specifically, we aim to create a vocal fold-like microenvironment to coax stem cells to adopt the phenotype of vocal fold fibroblasts (VFFs). Herein, high frequency vibratory stimulations and soluble connective tissue growth factor (CTGF) were sequentially introduced to mesenchymal stem cells (MSCs) cultured on a poly(ɛ-caprolactone) (PCL)-derived microfibrous scaffold for a total of 6 days. The initial 3-day vibratory culture resulted in an increased production of hyaluronic acids (HA), tenascin-C (TNC), decorin (DCN), and matrix metalloproteinase-1 (MMP1). The subsequent 3-day CTGF treatment further enhanced the cellular production of TNC and DCN, whereas CTGF treatment alone without the vibratory preconditioning significantly promoted the synthesis of collagen I (Col 1) and sulfated glycosaminoglycans (sGAGs). The highest level of MMP1, TNC, Col III, and DCN production was found for cells being exposed to the combined vibration and CTGF treatment. Noteworthy, the vibration and CTGF elicited a differential stimulatory effect on elastin (ELN), HA synthase 1 (HAS1), and fibroblast-specific protein-1 (FSP-1). The mitogenic activity of CTGF was only elicited in naïve cells without the vibratory preconditioning. The combined treatment had profound, but opposite effects on mitogen-activated protein kinase (MAPK) pathways, Erk1/2 and p38, and the Erk1/2 pathway was critical for the observed mechano-biochemical responses. Collectively, vibratory stresses and CTGF signals cooperatively coaxed MSCs toward a VFF-like phenotype and accelerated the synthesis and remodeling of vocal fold matrices.
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Affiliation(s)
- Zhixiang Tong
- 1 Department of Materials Science and Engineering, Delaware Biotechnology Institute, University of Delaware , Newark, Delaware
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Lee HD, Kim YH, Kim DS. Exosomes derived from human macrophages suppress endothelial cell migration by controlling integrin trafficking. Eur J Immunol 2014; 44:1156-69. [DOI: 10.1002/eji.201343660] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 11/08/2013] [Accepted: 12/09/2013] [Indexed: 12/30/2022]
Affiliation(s)
- Hee Doo Lee
- Department of Biochemistry; College of Life Science and Biotechnology; Yonsei University; Seoul Korea
| | - Yeon Hyang Kim
- Department of Biochemistry; College of Life Science and Biotechnology; Yonsei University; Seoul Korea
| | - Doo-Sik Kim
- Department of Biochemistry; College of Life Science and Biotechnology; Yonsei University; Seoul Korea
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