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Gorji A, Toh PJY, Ong HT, Toh YC, Toyama Y, Kanchanawong P. Enhancement of Endothelialization by Topographical Features Is Mediated by PTP1B-Dependent Endothelial Adherens Junctions Remodeling. ACS Biomater Sci Eng 2021; 7:2661-2675. [PMID: 33942605 DOI: 10.1021/acsbiomaterials.1c00251] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Endothelial Cells (ECs) form cohesive cellular lining of the vasculature and play essential roles in both developmental processes and pathological conditions. Collective migration and proliferation of endothelial cells (ECs) are key processes underlying endothelialization of vessels as well as vascular graft, but the complex interplay of mechanical and biochemical signals regulating these processes are still not fully elucidated. While surface topography and biochemical modifications have been used to enhance endothelialization in vitro, thus far such single-modality modifications have met with limited success. As combination therapy that utilizes multiple modalities has shown improvement in addressing various intractable and complex biomedical conditions, here, we explore a combined strategy that utilizes topographical features in conjunction with pharmacological perturbations. We characterized EC behaviors in response to micrometer-scale grating topography in concert with pharmacological perturbations of endothelial adherens junctions (EAJ) regulators. We found that the protein tyrosine phosphatase, PTP1B, serves as a potent regulator of EAJ stability, with PTP1B inhibition synergizing with grating topographies to modulate EAJ rearrangement, thereby augmenting global EC monolayer sheet orientation, proliferation, connectivity, and collective cell migration. Our data delineates the crosstalk between cell-ECM topography sensing and cell-cell junction integrity maintenance and suggests that the combined use of grating topography and PTP1B inhibitor could be a promising strategy for promoting collective EC migration and proliferation.
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Affiliation(s)
- Azita Gorji
- Mechanobiology Institute, National University of Singapore, 117411 Republic of Singapore.,Institut Curie, Laboratoire Physico Chimie Curie, Institut Pierre-Gilles de Gennes, CNRS UMR168, Paris 75005, France
| | - Pearlyn Jia Ying Toh
- Mechanobiology Institute, National University of Singapore, 117411 Republic of Singapore
| | - Hui Ting Ong
- Mechanobiology Institute, National University of Singapore, 117411 Republic of Singapore
| | - Yi-Chin Toh
- Department of Biomedical Engineering, National University of Singapore, 117583 Republic of Singapore.,Institute for Health Innovation and Technology, National University of Singapore, 117599 Republic of Singapore.,The N.1 Institute for Health, National University of Singapore, 117456, Republic of Singapore.,NUS Tissue Engineering Programme, National University of Singapore, 117456, Republic of Singapore
| | - Yusuke Toyama
- Mechanobiology Institute, National University of Singapore, 117411 Republic of Singapore.,Department of Biological Sciences, National University of Singapore, 117558, Republic of Singapore
| | - Pakorn Kanchanawong
- Mechanobiology Institute, National University of Singapore, 117411 Republic of Singapore.,Department of Biomedical Engineering, National University of Singapore, 117583 Republic of Singapore
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202
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Liang MK, Liang XQ, Zhong J, Wei YT, Lian ZP, Huang ZK, Liang J. Integrative analysis of epigenomics, transcriptomics, and proteomics to identify key targets and pathways of Weining granule for gastric cancer. JOURNAL OF ETHNOPHARMACOLOGY 2021; 270:113787. [PMID: 33422657 DOI: 10.1016/j.jep.2021.113787] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/26/2020] [Accepted: 01/03/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Weining granule (WNG) is a "Qi-Enriching and Kidney-Tonifying, Spleen-Reinforcing and Stasis-Removing" formula for gastric cancer (GC). Past research we noted WNG inhibited cell growth and raised apoptosis in GC. However, the underlying mechanism of WNG for GC have yet to be systematically clarified. AIM OF THE STUDY We sought to characterize the molecular landscape of GC cells in vitro after WNG treated, to identify the molecular targets and pathways that were associated with WNG for inducing the apoptosis of GC cells, and further to clarify underlying molecular mechanism of WNG for GC. MATERIALS AND METHODS We performed the techniques of RNA sequencing, tandem mass tags (TMT) based quantitative proteomics, and reduced representation bisulfite sequencing (RRBS) in WNG-treated/or untreated SGC-7901 GC cells to gain a comprehensive molecular portrait of WNG treatment. Then we integrated methylomics, transcriptomics, and proteomics data to carry out the bioinformatics analysis, and constructed the protein-protein interaction (PPI) network to identify molecular targets, and to discover the underlying signaling pathways associated with WNG for GC by network analysis. Besides, we verified the candidate target genes by Kaplan-Meier plotter database. RESULTS We identified 1249 significant differentially expressed genes (DEGs) from RNA expression datasets, 191 significant differentially abunabundant proteins (DAPs) from proteomics datasets, and 8293 significant differentially methylated regions (DMRs) from DNA methylation datasets. GO and KEGG analysis showed DEGs, DAPs, and DMRs enriched in the cancer-related biological processes of calcium signaling pathway, pathways in cancer, metabolic pathways, MAPK signaling pathway, PI3K-Akt signaling pathway, and transcriptional misregulation in cancer. We integrated three profile datasets and performed network analysis to distinguish the hub genes, and finally the genes of SOD2, HMOX1, MMP1, SRXN1, NOTCH1, MAPK14, TXNIP, VEGFA, POLR2F, and HSPA9 were identified. The Kaplan-Meier plotter confirmed that SOD2, MMP1, SRXN1, NOTCH1, MAPK14, TXNIP, VEGFA, and HSPA9 were significantly correlated with OS in GC patients (P < 0.01), while HMOX1 and POLR2F expression were not significantly relevant to survival of GC patients (P > 0.01). CONCLUSIONS SOD2, MMP1, SRXN1, NOTCH1, MAPK14, TXNIP, VEGFA, and HSPA9 were the predictive pharmaceutical targets of WNG for GC. The anticancer function of WNG was significantly associated with the pathways of focal adhesion pathway, PI3K-Akt signaling pathway, MAPK signaling pathway, and Wnt signaling pathway.
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Affiliation(s)
- Ming-Kun Liang
- Integrative Medicine Institute, Hunan University of Chinese Medicine, Changsha, 410208, China; Department of Science and Technology, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, 541100, China
| | - Xing-Qiu Liang
- Medical College, Guangxi University, Nanning, 530004, China; Department of Science and Technology, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, 541100, China
| | - Jing Zhong
- School of Basic Medical Sciences, Guangxi University of Chinese Medicine, Nanning, 530200, China
| | - Yu-Ting Wei
- School of Basic Medical Sciences, Guangxi University of Chinese Medicine, Nanning, 530200, China
| | - Zu-Ping Lian
- Department of Science and Technology, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, 541100, China
| | - Zheng-Kai Huang
- Integrative Medicine Institute, Hunan University of Chinese Medicine, Changsha, 410208, China
| | - Jian Liang
- Medical College, Guangxi University, Nanning, 530004, China.
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203
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Marin-Tapia HA, Romero-Salazar L, Arteaga-Arcos JC, Rosales-Ibáñez R, Mayorga-Rojas M. Micro-mechanical properties of corneal scaffolds from two different bio-models obtained by an efficient chemical decellularization. J Mech Behav Biomed Mater 2021; 119:104510. [PMID: 33872923 DOI: 10.1016/j.jmbbm.2021.104510] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 03/12/2021] [Accepted: 04/03/2021] [Indexed: 10/21/2022]
Abstract
The present study elucidates the impact of detergent-based chemical decellularization on the micro-mechanical properties of porcine and rabbit corneas for the purpose of extracellular matrix (ECM) derived scaffolds. Aiming to optimize the decellularization process, different concentrations of Sodium Dodecyl Sulfate (SDS), Triton X-100 and CHAPS detergents were assessed on their ability to decellularize corneas from both bio-models at incubation periods of 12 and 24h. We evaluated the effect of decellularization on corneal ECM Young's Modulus and various area's roughness parameters (topography features) at a microscale by using Atomic Force Microscopy (AFM). Only SDS presented adequate decellularization properties at the selected concentrations (0.2, 0.5 and 1%) and incubation periods. All topography features displayed by native corneas were preserved after SDS treatments, while no statistically significant differences were identified for the average value of Young's Modulus between the control samples and those treated with 0.2% SDS (rabbit corneas) and 0.5% SDS (porcine corneas) after 12h. In this sense, cornea decellularization procedures can be improved by simultaneously reducing SDS concentration and incubation period. AFM is a useful tool to perform biomechanical analysis of the effect of decellularization on scaffold micro-mechanics. Evaluation of the scaffold mechanical behavior at a microscale could help in understanding cell-scaffold interactions in terms of mechanotransduction, complementing macroscale techniques (e.g. tensile tests) relevant for tissue engineering quality control and decision-making.
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Affiliation(s)
- Hugo Arian Marin-Tapia
- Rheology, Nanofluids and Microfluidics Laboratory, Autonomous University of the State of Mexico, Faculty of Sciences, Campus Universitario ''El Cerrillo, Piedras Blancas", Carretera Toluca-Ixtlahuaca km 15.5, C.P. 50200 Estado de México, Mexico; Autonomous University of the State of Mexico, Faculty of Sciences, Campus Universitario ''El Cerrillo, Piedras Blancas", Carretera Toluca-Ixtlahuaca km 15.5, C.P. 50200 Estado de México, Mexico.
| | - Lorena Romero-Salazar
- Nanothermodynamics and Complex Systems Laboratory, Autonomous University of the State of Mexico, Faculty of Sciences, Campus Universitario ''El Cerrillo, Piedras Blancas", Carretera Toluca-Ixtlahuaca km 15.5, C.P. 50200 Estado de México, Mexico.
| | - Juan Carlos Arteaga-Arcos
- Micromechanics Laboratory, Autonomous University of the State of Mexico, Faculty of Sciences, Instituto Literario, No. 100 Ote., C.P, 50000, Toluca, State of Mexico, Mexico.
| | - Raúl Rosales-Ibáñez
- Tissue Engineering and Translational Medicine Laboratory, Faculty of Higher Studies (FES) Iztacala, National Autonomous University of Mexico, Tlalnepantla, 54090, Mexico City, Mexico.
| | - Miguel Mayorga-Rojas
- Rheology, Nanofluids and Microfluidics Laboratory, Autonomous University of the State of Mexico, Faculty of Sciences, Campus Universitario ''El Cerrillo, Piedras Blancas", Carretera Toluca-Ixtlahuaca km 15.5, C.P. 50200 Estado de México, Mexico.
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204
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Wang Y, Yang Y, Wang X, Kawazoe N, Yang Y, Chen G. The varied influences of cell adhesion and spreading on gene transfection of mesenchymal stem cells on a micropatterned substrate. Acta Biomater 2021; 125:100-111. [PMID: 33524558 DOI: 10.1016/j.actbio.2021.01.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 01/08/2021] [Accepted: 01/26/2021] [Indexed: 12/17/2022]
Abstract
Transmembrane transport of exogenous genes is widely investigated because of high demand for gene therapy. Both gene carriers and cellular conditions can affect gene transfection efficiency. Although cell morphology has been reported to affect cell functions, the influence of cell adhesion area and cell spreading area on the transfection of exogenous genes remains unclear because it is difficult to separate the individual influence of these areas during normal cell culture. In this study, micropatterns were prepared to separately control the adhesion and spreading areas of human bone marrow-derived mesenchymal stem cells (hMSCs). Transfection efficiency of the green fluorescent protein gene to hMSCs cultured on the micropatterns was compared. Cells with a larger adhesion area showed higher transfection efficiency, while cell spreading area hardly affected gene transfection efficiency. Cell adhesion area had dominant influence on gene transfection. Microparticle uptake and BrdU staining showed that the cellular uptake capacity and DNA synthesis activity increased with the increase in cell adhesion area, but were not affected by cell spreading area. The different influence of cell adhesion area and cell spreading area on gene transfection was correlated with their influence on cellular uptake capacity, DNA synthesis activity, focal adhesion formation, cytoskeletal mechanics, and mechanotransduction signal activation. The results suggest that cell adhesion area and cell spreading area had different influence on gene transfection; this finding should provide useful information for the manipulation of cell functions in gene therapy, protein modification, and cell reprogramming. STATEMENT OF SIGNIFICANCE: Cell adhesion and spreading are important morphological factors during the interaction of cells with biomaterial surfaces or interfaces. However, the predominant morphological factor that affects cellular functions such as gene transfection remains unclear. In the present study, special micropatterns were used to precisely control cell adhesion and spreading areas independently. Mesenchymal stem cells cultured on the micropatterns were transfected with the green fluorescent protein gene to compare the different influence of cell adhesion and spreading areas on gene transfection efficiency. Cell adhesion area showed dominant influence on gene transfection, while cell spreading area did not affect gene transfection. The dominant influence of cell adhesion area could be explained by cellular uptake capacity and DNA synthesis activity through the formation of FAs, cytoskeletal mechanics, and YAP/TAZ nuclear localization. The results provide new insights of correlation between cell morphology and cellular functions for designing functional biomaterials.
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205
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Xie AW, Zacharias NA, Binder BYK, Murphy WL. Controlled aggregation enhances immunomodulatory potential of mesenchymal stromal cell aggregates. Stem Cells Transl Med 2021; 10:1184-1201. [PMID: 33818906 PMCID: PMC8284773 DOI: 10.1002/sctm.19-0414] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 02/04/2021] [Accepted: 03/08/2021] [Indexed: 02/06/2023] Open
Abstract
Human mesenchymal stromal cells (MSCs) are promising candidates for cell therapy due to their ease of isolation and expansion and their ability to secrete antiapoptotic, pro‐angiogenic, and immunomodulatory factors. Three‐dimensional (3D) aggregation “self‐activates” MSCs to augment their pro‐angiogenic and immunomodulatory potential, but the microenvironmental features and culture parameters that promote optimal MSC immunomodulatory function in 3D aggregates are poorly understood. Here, we generated MSC aggregates via three distinct methods and compared them with regard to their (a) aggregate structure and (b) immunomodulatory phenotype under resting conditions and in response to inflammatory stimulus. Methods associated with fast aggregation kinetics formed aggregates with higher cell packing density and reduced extracellular matrix (ECM) synthesis compared to those with slow aggregation kinetics. While all three methods of 3D aggregation enhanced MSC expression of immunomodulatory factors compared to two‐dimensional culture, different aggregation methods modulated cells' temporal expression of these factors. A Design of Experiments approach, in which aggregate size and aggregation kinetics were systematically covaried, identified a significant effect of both parameters on MSCs' ability to regulate immune cells. Compared to small aggregates formed with fast kinetics, large aggregates with slow assembly kinetics were more effective at T‐cell suppression and macrophage polarization toward anti‐inflammatory phenotypes. Thus, culture parameters including aggregation method, kinetics, and aggregate size influence both the structural properties of aggregates and their paracrine immunomodulatory function. These findings underscore the utility of engineering strategies to control properties of 3D MSC aggregates, which may identify new avenues for optimizing the immunomodulatory function of MSC‐based cell therapies.
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Affiliation(s)
- Angela W Xie
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Nicholas A Zacharias
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Bernard Y K Binder
- Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - William L Murphy
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA.,Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, Wisconsin, USA.,Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA
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206
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Vilaça A, Domingues RMA, Tiainen H, Mendes BB, Barrantes A, Reis RL, Gomes ME, Gomez‐Florit M. Multifunctional Surfaces for Improving Soft Tissue Integration. Adv Healthc Mater 2021; 10:e2001985. [PMID: 33599399 DOI: 10.1002/adhm.202001985] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/14/2021] [Indexed: 12/22/2022]
Abstract
Metallic implants are widely used in diverse clinical applications to aid in recovery from lesions or to replace native hard tissues. However, the lack of integration of metallic surfaces with soft tissue interfaces causes the occurrence of biomaterial-associated infections, which can trigger a complicated inflammatory response and, ultimately, implant failure. Here, a multifunctional implant surface showing nanoscale anisotropy, based on the controlled deposition of cellulose nanocrystals (CNC), and biological activity derived from platelet lysate (PL) biomolecules sequestered and presented on CNC surface, is proposed. The anisotropic radial nanopatterns are produced on polished titanium surfaces by spin-coating CNC at high speed. Furthermore, CNC surface chemistry allows to further sequester and form a coating of bioactive molecules derived from PL. The surface anisotropy provided by CNC guides fibroblasts growth and alignment up to 14 days of culture. Moreover, PL-derived biomolecules polarize macrophages toward the M2-like anti-inflammatory phenotype. These results suggest that the developed multifunctional surfaces can promote soft tissue integration to metallic implants and, at the same time, prevent bacterial invasion, tissue inflammation, and failure of biomedical metallic implants.
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Affiliation(s)
- Adriana Vilaça
- 3B's Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and Biomimetics University of Minho Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine Avepark − Parque de Ciência e Tecnologia, Zona Industrial da Gandra Barco Guimarães 4805‐017 Portugal
- ICVS/3B's‐PT Government Associate Laboratory Braga Guimarães 4805‐017 Portugal
| | - Rui M. A. Domingues
- 3B's Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and Biomimetics University of Minho Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine Avepark − Parque de Ciência e Tecnologia, Zona Industrial da Gandra Barco Guimarães 4805‐017 Portugal
- ICVS/3B's‐PT Government Associate Laboratory Braga Guimarães 4805‐017 Portugal
| | - Hanna Tiainen
- Department of Biomaterials Institute of Clinical Dentistry University of Oslo P.O. box 1109 Blindern Oslo 0317 Norway
| | - Bárbara B. Mendes
- 3B's Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and Biomimetics University of Minho Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine Avepark − Parque de Ciência e Tecnologia, Zona Industrial da Gandra Barco Guimarães 4805‐017 Portugal
- ICVS/3B's‐PT Government Associate Laboratory Braga Guimarães 4805‐017 Portugal
| | - Alejandro Barrantes
- Oral Research Laboratory Institute of Clinical Dentistry University of Oslo P.O. Box 1143 Blindern Oslo 0317 Norway
| | - Rui L. Reis
- 3B's Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and Biomimetics University of Minho Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine Avepark − Parque de Ciência e Tecnologia, Zona Industrial da Gandra Barco Guimarães 4805‐017 Portugal
- ICVS/3B's‐PT Government Associate Laboratory Braga Guimarães 4805‐017 Portugal
| | - Manuela E. Gomes
- 3B's Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and Biomimetics University of Minho Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine Avepark − Parque de Ciência e Tecnologia, Zona Industrial da Gandra Barco Guimarães 4805‐017 Portugal
- ICVS/3B's‐PT Government Associate Laboratory Braga Guimarães 4805‐017 Portugal
| | - Manuel Gomez‐Florit
- 3B's Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and Biomimetics University of Minho Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine Avepark − Parque de Ciência e Tecnologia, Zona Industrial da Gandra Barco Guimarães 4805‐017 Portugal
- ICVS/3B's‐PT Government Associate Laboratory Braga Guimarães 4805‐017 Portugal
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207
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Liu M, Zhang Y, Yang J, Zhan H, Zhou Z, Jiang Y, Shi X, Fan X, Zhang J, Luo W, Fung KMA, Xu C, Bronze MS, Houchen CW, Li M. Zinc-Dependent Regulation of ZEB1 and YAP1 Coactivation Promotes Epithelial-Mesenchymal Transition Plasticity and Metastasis in Pancreatic Cancer. Gastroenterology 2021; 160:1771-1783.e1. [PMID: 33421513 PMCID: PMC8035249 DOI: 10.1053/j.gastro.2020.12.077] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/21/2020] [Accepted: 12/29/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Pancreatic cancer is characterized by extensive metastasis. Epithelial-mesenchymal transition (EMT) plasticity plays a critical role in tumor progression and metastasis by maintaining the transition between EMT and mesenchymal-epithelial transition states. Our aim is to understand the molecular events regulating metastasis and EMT plasticity in pancreatic cancer. METHODS The interactions between a cancer-promoting zinc transporter ZIP4, a zinc-dependent EMT transcriptional factor ZEB1, a coactivator YAP1, and integrin α3 (ITGA3) were examined in human pancreatic cancer cells, clinical specimens, spontaneous mouse models (KPC and KPCZ) and orthotopic xenografts, and 3-dimensional spheroid and organoid models. Correlations between ZIP4, miR-373, and its downstream targets were assessed by RNA in situ hybridization and immunohistochemical staining. The transcriptional regulation of ZEB1, YAP1, and ITGA3 by ZIP4 was determined by chromatin immunoprecipitation, co-immunoprecipitation, and luciferase reporter assays. RESULTS The Hippo pathway effector YAP1 is a potent transcriptional coactivator and forms a complex with ZEB1 to activate ITGA3 transcription through the YAP1/transcriptional enhanced associate domain (TEAD) binding sites in human pancreatic cancer cells and KPC-derived mouse cells. ZIP4 upregulated YAP1 expression via activation of miR-373 and inhibition of the YAP1 repressor large tumor suppressor 2 kinase (LATS2). Furthermore, upregulation of ZIP4 promoted EMT plasticity, cell adhesion, spheroid formation, and organogenesis both in human pancreatic cancer cells, 3-dimensional spheroid model, xenograft model, and spontaneous mouse models (KPC and KPCZ) through ZEB1/YAP1-ITGA3 signaling axis. CONCLUSION We demonstrated that ZIP4 activates ZEB1 and YAP1 through distinct mechanisms. The ZIP4-miR-373-LATS2-ZEB1/YAP1-ITGA3 signaling axis has a significant impact on pancreatic cancer metastasis and EMT plasticity.
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Affiliation(s)
- Mingyang Liu
- Department of Medicine, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma,Department of Surgery, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Yuqing Zhang
- Department of Medicine, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma,Department of Surgery, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Jingxuan Yang
- Department of Medicine, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma,Department of Surgery, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Hanxiang Zhan
- Department of Medicine, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma,Department of Surgery, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma,Department of General Surgery, Qilu hospital, Shandong University, Jinan, Shandong, China
| | - Zhijun Zhou
- Department of Medicine, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma,Department of Surgery, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Yuanyuan Jiang
- Department of Medicine, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma,Department of Surgery, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma,Department of Pulmonary and Critical Care Medicine, Qilu hospital, Shandong University, Jinan, Shandong, China
| | - Xiuhui Shi
- Department of Medicine, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma,Department of Surgery, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Xiao Fan
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Junxia Zhang
- Department of Neurosurgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wenyi Luo
- Department of Pathology, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Kar-Ming A. Fung
- Department of Pathology, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Chao Xu
- Department of Biostatistics and Epidemiology, Hudson College of Public Health, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Michael S. Bronze
- Department of Medicine, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Courtney W. Houchen
- Department of Medicine, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Min Li
- Department of Medicine, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma; Department of Surgery, the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma.
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208
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Cell intercalation driven by SMAD3 underlies secondary neural tube formation. Dev Cell 2021; 56:1147-1163.e6. [PMID: 33878300 DOI: 10.1016/j.devcel.2021.03.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 01/07/2021] [Accepted: 03/19/2021] [Indexed: 02/06/2023]
Abstract
Body axis elongation is a hallmark of the vertebrate embryo, involving the architectural remodeling of the tail bud. Although it is clear how neuromesodermal progenitors (NMPs) contribute to embryo elongation, the dynamic events that lead to de novo lumen formation and that culminate in the formation of a 3-dimensional, neural tube from NMPs, are poorly understood. Here, we used in vivo imaging of the chicken embryo to show that cell intercalation downstream of TGF-β/SMAD3 signaling is required for secondary neural tube formation. Our analysis describes the events in embryo elongation including lineage restriction, the epithelial-to-mesenchymal transition of NMPs, and the initiation of lumen formation. We show that the resolution of a single, centrally positioned lumen, which occurs through the intercalation of central cells, requires SMAD3/Yes-associated protein (YAP) activity. We anticipate that these findings will be relevant to understand caudal, skin-covered neural tube defects, among the most frequent birth defects detected in humans.
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209
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Li Y, Ge L, Chen X, Mao Y, Gu X, Ren B, Zeng Y, Chen M, Chen S, Liu J, Yang Y, Xu H. The common YAP activation mediates corneal epithelial regeneration and repair with different-sized wounds. NPJ Regen Med 2021; 6:16. [PMID: 33772031 PMCID: PMC7997881 DOI: 10.1038/s41536-021-00126-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 02/01/2021] [Indexed: 02/01/2023] Open
Abstract
Regeneration/repair after injury can be endowed by adult stem cells (ASCs) or lineage restricted and even terminally differentiated cells. In corneal epithelium, regeneration after a large wound depends on ASCs (limbal epithelial stem cells, LESCs), whereas repair after a small wound is LESCs-independent. Here, using rat corneal epithelial wounds with different sizes, we show that YAP activation promotes the activation and expansion of LESCs after a large wound, as well as the reprogramming of local epithelial cells (repairing epithelial cells) after a small wound, which contributes to LESCs-dependent and -independent wound healing, respectively. Mechanically, we highlight that the reciprocal regulation of YAP activity and the assembly of cell junction and cortical F-actin cytoskeleton accelerates corneal epithelial healing with different-sized wounds. Together, the common YAP activation and the underlying regulatory mechanism are harnessed by LESCs and lineage-restricted epithelial cells to cope with corneal epithelial wounds with different sizes.
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Affiliation(s)
- Yijian Li
- grid.410570.70000 0004 1760 6682Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China ,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Lingling Ge
- grid.410570.70000 0004 1760 6682Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China ,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Xia Chen
- grid.410570.70000 0004 1760 6682Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China ,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China ,grid.263906.8Southwest University, Chongqing, China
| | - Yumei Mao
- grid.449525.b0000 0004 1798 4472North Sichuan Medical College, Sichuan, China
| | - Xianliang Gu
- grid.410570.70000 0004 1760 6682Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China ,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Bangqi Ren
- grid.410570.70000 0004 1760 6682Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China ,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Yuxiao Zeng
- grid.410570.70000 0004 1760 6682Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China ,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Min Chen
- grid.410570.70000 0004 1760 6682Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China ,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Siyu Chen
- grid.410570.70000 0004 1760 6682Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China ,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Jinhua Liu
- grid.410570.70000 0004 1760 6682Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China ,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Yuli Yang
- grid.410570.70000 0004 1760 6682Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China ,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
| | - Haiwei Xu
- grid.410570.70000 0004 1760 6682Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China ,Key Lab of Visual Damage and Regeneration & Restoration of Chongqing, Chongqing, China
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210
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He H, Snowball J, Sun F, Na CL, Whitsett JA. IGF1R controls mechanosignaling in myofibroblasts required for pulmonary alveologenesis. JCI Insight 2021; 6:144863. [PMID: 33591952 PMCID: PMC8026181 DOI: 10.1172/jci.insight.144863] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 02/10/2021] [Indexed: 11/17/2022] Open
Abstract
Ventilation throughout life is dependent on the formation of pulmonary alveoli, which create an extensive surface area in which the close apposition of respiratory epithelium and endothelial cells of the pulmonary microvascular enables efficient gas exchange. Morphogenesis of the alveoli initiates at late gestation in humans and the early postnatal period in the mouse. Alveolar septation is directed by complex signaling interactions among multiple cell types. Here, we demonstrate that IGF1 receptor gene (Igf1r) expression by a subset of pulmonary fibroblasts is required for normal alveologenesis in mice. Postnatal deletion of Igf1r caused alveolar simplification, disrupting alveolar elastin networks and extracellular matrix without altering myofibroblast differentiation or proliferation. Moreover, loss of Igf1r impaired contractile properties of lung myofibroblasts and inhibited myosin light chain (MLC) phosphorylation and mechanotransductive nuclear YAP activity. Activation of p-AKT, p-MLC, and nuclear YAP in myofibroblasts was dependent on Igf1r. Pharmacologic activation of AKT enhanced MLC phosphorylation, increased YAP activation, and ameliorated alveolar simplification in vivo. IGF1R controls mechanosignaling in myofibroblasts required for lung alveologenesis.
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Affiliation(s)
- Hua He
- Division of Pulmonary Biology and
| | | | - Fei Sun
- Center for Lung Regenerative Medicine, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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211
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Biswas R, Banerjee A, Lembo S, Zhao Z, Lakshmanan V, Lim R, Le S, Nakasaki M, Kutyavin V, Wright G, Palakodeti D, Ross RS, Jamora C, Vasioukhin V, Jie Y, Raghavan S. Mechanical instability of adherens junctions overrides intrinsic quiescence of hair follicle stem cells. Dev Cell 2021; 56:761-780.e7. [PMID: 33725480 DOI: 10.1016/j.devcel.2021.02.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 11/24/2020] [Accepted: 02/18/2021] [Indexed: 12/13/2022]
Abstract
Vinculin, a mechanotransducer associated with both adherens junctions (AJs) and focal adhesions (FAs), plays a central role in force transmission through cell-cell and cell-substratum contacts. We generated the conditional knockout (cKO) of vinculin in murine skin that results in the loss of bulge stem cell (BuSC) quiescence and promotes continual cycling of the hair follicles. Surprisingly, we find that the AJs in vinculin cKO cells are mechanically weak and impaired in force generation despite increased junctional expression of E-cadherin and α-catenin. Mechanistically, we demonstrate that vinculin functions by keeping α-catenin in a stretched/open conformation, which in turn regulates the retention of YAP1, another potent mechanotransducer and regulator of cell proliferation, at the AJs. Altogether, our data provide mechanistic insights into the hitherto-unexplored regulatory link between the mechanical stability of cell junctions and contact-inhibition-mediated maintenance of BuSC quiescence.
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Affiliation(s)
- Ritusree Biswas
- Institute for Stem Cell Science and Regenerative Medicine (inStem), GKVK Campus, Bangalore 560065, India; SASTRA University, Thanjavur, Tamil Nadu 613401, India
| | - Avinanda Banerjee
- Institute for Stem Cell Science and Regenerative Medicine (inStem), GKVK Campus, Bangalore 560065, India; Skin Research Institute of Singapore (A∗STAR), Singapore 138648, Singapore
| | - Sergio Lembo
- Institute for Stem Cell Science and Regenerative Medicine (inStem), GKVK Campus, Bangalore 560065, India
| | - Zhihai Zhao
- Department of Physics, National University of Singapore, Singapore 117542, Singapore
| | - Vairavan Lakshmanan
- Institute for Stem Cell Science and Regenerative Medicine (inStem), GKVK Campus, Bangalore 560065, India; SASTRA University, Thanjavur, Tamil Nadu 613401, India
| | - Ryan Lim
- Skin Research Institute of Singapore (A∗STAR), Singapore 138648, Singapore
| | - Shimin Le
- Department of Physics, National University of Singapore, Singapore 117542, Singapore
| | | | | | - Graham Wright
- A∗STAR Microscopy Platform, Skin Research Institute of Singapore (A∗STAR), Singapore 138648, Singapore
| | - Dasaradhi Palakodeti
- Institute for Stem Cell Science and Regenerative Medicine (inStem), GKVK Campus, Bangalore 560065, India
| | - Robert S Ross
- University of California, San Diego, La Jolla, CA 92093, USA
| | - Colin Jamora
- Institute for Stem Cell Science and Regenerative Medicine (inStem), GKVK Campus, Bangalore 560065, India
| | | | - Yan Jie
- Department of Physics, National University of Singapore, Singapore 117542, Singapore; Mechanobiology Institute, National University of Singapore, Singapore 117411, Singapore
| | - Srikala Raghavan
- Institute for Stem Cell Science and Regenerative Medicine (inStem), GKVK Campus, Bangalore 560065, India; Skin Research Institute of Singapore (A∗STAR), Singapore 138648, Singapore.
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212
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Exosomal integrins and their influence on pancreatic cancer progression and metastasis. Cancer Lett 2021; 507:124-134. [PMID: 33741423 DOI: 10.1016/j.canlet.2021.03.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 03/01/2021] [Accepted: 03/10/2021] [Indexed: 12/24/2022]
Abstract
As one of the most lethal and untreatable types of cancer so far, pancreatic cancer is not benefitting from advancements in research. Despite all the efforts, this malignancy is still very difficult to diagnose in time, resistant to treatments, and prone to relapses. The appearance of metastasis-notoriously difficult to fight and a signal of unfortunate prognosis-is the event most dreaded by every cancer patient, especially by those with pancreatic cancer. Strategies for early detection and treatment of metastases are limited, and new action plans are desperately awaited. Recently, the importance of cell-secreted vesicles, or exosomes, in cell-cell communication and, particularly, their key role in promoting pathological conditions, such as infectious diseases and cancer, have attracted the attention of the scientific community. The discovery of some exosome membrane components, such as adhesion receptors and integrins, and their ability to influence cancer cell functions and metastasis progression, has added some important understanding of the metastatic process and will hopefully open the door to the development of new tools for identifying and targeting metastases. The aim of this review is to discuss the role played by integrins in exosomal-mediated pancreatic cancer progression and metastasis.
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213
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Yamazaki M, Kidoaki S, Fujie H, Miyoshi H. Designing Elastic Modulus of Cell Culture Substrate to Regulate YAP and RUNX2 Localization for Controlling Differentiation of Human Mesenchymal Stem Cells. ANAL SCI 2021; 37:447-453. [PMID: 33692265 DOI: 10.2116/analsci.20scp02] [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] [Indexed: 11/23/2022]
Abstract
To establish a guideline for the design of cell culture substrates to control human mesenchymal stem cell (MSC) differentiation, we quantitatively characterized the heterogeneity in the responsiveness of MSCs to the elastic modulus of culture substrates. We analyzed the elastic modulus-dependent dynamics of a mechanotransducer, YAP, and an osteogenic differentiation factor, RUNX2, in three different MSC lots using a styrenated gelatin gel with controllable elastic modulus. The percentage of cells with YAP in the nucleus increased linearly with increases in the elastic modulus, reaching a plateau at 10 kPa for all the lots analyzed. The increase in the percentage with the substrate elastic modulus was described by the same linear function. The percentage of cells with RUNX2 nuclear localization also increased linearly with increases in the substrate elastic modulus, plateauing at 5 kPa, although the regression lines to the linearly increasing regions varied between lots. These similarities and differences in YAP and RUNX2 dynamics among cell populations are basis to design the substrate elastic modulus to manipulate YAP and RUNX2 localizations.
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Affiliation(s)
- Masashi Yamazaki
- Mechanical Systems and Engineering, Graduate School Systems Design, Tokyo Metropolitan University
| | - Satoru Kidoaki
- Laboratory of Biomedical and Biophysical Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University
| | - Hiromichi Fujie
- Mechanical Systems and Engineering, Graduate School Systems Design, Tokyo Metropolitan University
| | - Hiromi Miyoshi
- Mechanical Systems and Engineering, Graduate School Systems Design, Tokyo Metropolitan University
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214
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Vrbský J, Vinarský V, Perestrelo AR, De La Cruz JO, Martino F, Pompeiano A, Izzi V, Hlinomaz O, Rotrekl V, Sudol M, Pagliari S, Forte G. Evidence for discrete modes of YAP1 signaling via mRNA splice isoforms in development and diseases. Genomics 2021; 113:1349-1365. [PMID: 33713822 DOI: 10.1016/j.ygeno.2021.03.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 02/10/2021] [Accepted: 03/05/2021] [Indexed: 01/02/2023]
Abstract
Yes-associated protein 1 (YAP1) is a transcriptional co-activator downstream of Hippo pathway. The pathway exerts crucial roles in organogenesis and its dysregulation is associated with the spreading of different cancer types. YAP1 gene encodes for multiple protein isoforms, whose specific functions are not well defined. We demonstrate the splicing of isoform-specific mRNAs is controlled in a stage- and tissue-specific fashion. We designed expression vectors encoding for the most-represented isoforms of YAP1 with either one or two WW domains and studied their specific signaling activities in YAP1 knock-out cell lines. YAP1 isoforms display both common and unique functions and activate distinct transcriptional programs, as the result of their unique protein interactomes. By generating TEAD-based transcriptional reporter cell lines, we demonstrate individual YAP1 isoforms display unique effects on cell proliferation and differentiation. Finally, we illustrate the complexity of the regulation of Hippo-YAP1 effector in physiological and in pathological conditions of the heart.
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Affiliation(s)
- Jan Vrbský
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic.
| | - Vladimir Vinarský
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic; Competence Center for Mechanobiology in Regenerative Medicine, INTERREG ATCZ133, CZ-62500 Brno, Czech Republic
| | - Ana Rubina Perestrelo
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic
| | - Jorge Oliver De La Cruz
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic; Competence Center for Mechanobiology in Regenerative Medicine, INTERREG ATCZ133, CZ-62500 Brno, Czech Republic
| | - Fabiana Martino
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic; Competence Center for Mechanobiology in Regenerative Medicine, INTERREG ATCZ133, CZ-62500 Brno, Czech Republic; Department of Biology, Masaryk University, CZ-62500 Brno, Czech Republic
| | - Antonio Pompeiano
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic
| | - Valerio Izzi
- University of Oulu, FI-90014 Oulu, Finland; Finnish Cancer Institute, 00130 Helsinki, Finland
| | - Ota Hlinomaz
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic
| | - Vladimir Rotrekl
- Department of Biology, Masaryk University, CZ-62500 Brno, Czech Republic
| | - Marius Sudol
- Department of Physiology, Yong Loo Li School of Medicine, Block MD9, 2 Medical Drive #04-01, 117597, Singapore; Mechanobiology Institute, T-Lab, 5A Engineering Drive 1, 117411, Singapore; Department of Medicine, Icahn School of Medicine at Mount Sinai, NY, New York 10029, United States of America
| | - Stefania Pagliari
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic
| | - Giancarlo Forte
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic; Competence Center for Mechanobiology in Regenerative Medicine, INTERREG ATCZ133, CZ-62500 Brno, Czech Republic.
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215
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Wang Y, Yang Y, Wang X, Yoshitomi T, Kawazoe N, Yang Y, Chen G. Micropattern-controlled chirality of focal adhesions regulates the cytoskeletal arrangement and gene transfection of mesenchymal stem cells. Biomaterials 2021; 271:120751. [PMID: 33740614 DOI: 10.1016/j.biomaterials.2021.120751] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 02/26/2021] [Accepted: 03/02/2021] [Indexed: 02/07/2023]
Abstract
Cell chirality has been demonstrated to be important for controlling cell functions. However, it is not clear how the chirality of the extracellular microenvironment regulates cell adhesion and cytoskeletal structures and therefore affects gene transfection. In this study, the chirality of focal adhesions and the cytoskeleton of single human mesenchymal stem cells (hMSCs) was controlled by specially designed micropatterns, and its influence on gene transfection was investigated. Micropatterns with different cell adhesion areas and swirling stripe lines were prepared by micropatterning fibronectin on polystyrene surfaces. The chiral micropatterns induced the formation of chiral focal adhesions and chiral cytoskeletal structures. Gene transfection efficiency was enhanced with increasing adhesion area, while hMSCs on left-handed and right-handed swirling micropatterns showed the same level of gene transfection. When the swirling angle was changed from 0°, 30°, and 60° to 90°, the gene transfection efficiency at a swirling angle of 60° was the lowest. The influence of cell chirality on gene transfection was strongly associated with cellular uptake capacity, DNA synthesis and cytoskeletal mechanics. The results demonstrated that cytoskeletal swirling had a significant influence on gene transfection.
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Affiliation(s)
- Yongtao Wang
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan; Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Yingjun Yang
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan; Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Xinlong Wang
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan; Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Toru Yoshitomi
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Naoki Kawazoe
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Yingnan Yang
- Graduate School of Life and Environmental Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572, Japan
| | - Guoping Chen
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan; Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan.
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216
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Astudillo P. Analysis in silico of the functional interaction between WNT5A and YAP/TEAD signaling in cancer. PeerJ 2021; 9:e10869. [PMID: 33643710 PMCID: PMC7896511 DOI: 10.7717/peerj.10869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 01/10/2021] [Indexed: 12/27/2022] Open
Abstract
To date, most data regarding the crosstalk between the Wnt signaling pathway and the YAP/TAZ transcriptional coactivators focuses on the Wnt/β-catenin branch of the pathway. In contrast, the relationship between the non-canonical Wnt pathway and YAP/TAZ remains significantly less explored. Wnt5a is usually regarded as a prototypical non-canonical Wnt ligand, and its expression has been related to cancer progression. On the other hand, YAP/TAZ transcriptional coactivators act in concert with TEAD transcription factors to control gene expression. Although one article has shown previously that WNT5A is a YAP/TEAD target gene, there is a need for further evidence supporting this regulatory relationship, because a possible YAP/Wnt5a regulatory circuit might have profound implications for cancer biology. This article analyzes publicly available ChIP-Seq, gene expression, and protein expression data to explore this relationship, and shows that WNT5A might be a YAP/TEAD target gene in several contexts. Moreover, Wnt5a and YAP expression are significantly correlated in specific cancer types, suggesting that the crosstalk between YAP/TAZ and the Wnt pathway is more intricate than previously thought.
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Affiliation(s)
- Pablo Astudillo
- Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Santiago, Chile
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217
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Zhou Q, Lyu S, Bertrand AA, Hu AC, Chan CH, Ren X, Dewey MJ, Tiffany AS, Harley BAC, Lee JC. Stiffness of Nanoparticulate Mineralized Collagen Scaffolds Triggers Osteogenesis via Mechanotransduction and Canonical Wnt Signaling. Macromol Biosci 2021; 21:e2000370. [PMID: 33382197 PMCID: PMC7977493 DOI: 10.1002/mabi.202000370] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Indexed: 12/12/2022]
Abstract
The ability of the extracellular matrix (ECM) to instruct progenitor cell differentiation has generated excitement for the development of materials-based regenerative solutions. Described a nanoparticulate mineralized collagen glycosaminoglycan (MC-GAG) material capable of inducing in vivo skull regeneration without exogenous growth factors or ex vivo progenitor cell-priming is described previously. Here, the contribution of titrating stiffness to osteogenicity is evaluated by comparing noncrosslinked (NX-MC) and crosslinked (MC) forms of MC-GAG. While both materials are osteogenic, MC demonstrates an increased expression of osteogenic markers and mineralization compared to NX-MC. Both materials are capable of autogenously activating the canonical BMPR signaling pathway with phosphorylation of Smad1/5. However, unlike NX-MC, human mesenchymal stem cells cultured on MC demonstrate significant elevations in the major mechanotransduction mediators YAP and TAZ expression, coincident with β-catenin activation in the canonical Wnt signaling pathway. Inhibition of YAP/TAZ activation reduces osteogenic expression, mineralization, and β-catenin activation in MC, with less of an effect on NX-MC. YAP/TAZ inhibition also results in a reciprocal increase in Smad1/5 phosphorylation and BMP2 expression. The results indicate that increasing MC-GAG stiffness induces osteogenic differentiation via the mechanotransduction mediators YAP/TAZ and the canonical Wnt signaling pathway, whereas the canonical BMPR signaling pathway is activated independent of stiffness.
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Affiliation(s)
- Qi Zhou
- Division of Plastic and Reconstructive Surgery, UCLA David Geffen School of Medicine, Los Angeles, CA, 90095, USA
- Research Service, Greater Los Angeles VA Healthcare System, Los Angeles, CA, 90073, USA
- UCLA Molecular Biology Institute, Los Angeles, CA, 90095, USA
| | - Shengyu Lyu
- Division of Plastic and Reconstructive Surgery, UCLA David Geffen School of Medicine, Los Angeles, CA, 90095, USA
- Research Service, Greater Los Angeles VA Healthcare System, Los Angeles, CA, 90073, USA
- UCLA Molecular Biology Institute, Los Angeles, CA, 90095, USA
| | - Anthony A Bertrand
- Division of Plastic and Reconstructive Surgery, UCLA David Geffen School of Medicine, Los Angeles, CA, 90095, USA
- Research Service, Greater Los Angeles VA Healthcare System, Los Angeles, CA, 90073, USA
- UCLA Molecular Biology Institute, Los Angeles, CA, 90095, USA
| | - Allison C Hu
- Division of Plastic and Reconstructive Surgery, UCLA David Geffen School of Medicine, Los Angeles, CA, 90095, USA
- Research Service, Greater Los Angeles VA Healthcare System, Los Angeles, CA, 90073, USA
- UCLA Molecular Biology Institute, Los Angeles, CA, 90095, USA
| | - Candace H Chan
- Division of Plastic and Reconstructive Surgery, UCLA David Geffen School of Medicine, Los Angeles, CA, 90095, USA
- Research Service, Greater Los Angeles VA Healthcare System, Los Angeles, CA, 90073, USA
- UCLA Molecular Biology Institute, Los Angeles, CA, 90095, USA
| | - Xiaoyan Ren
- Division of Plastic and Reconstructive Surgery, UCLA David Geffen School of Medicine, Los Angeles, CA, 90095, USA
- Research Service, Greater Los Angeles VA Healthcare System, Los Angeles, CA, 90073, USA
- UCLA Molecular Biology Institute, Los Angeles, CA, 90095, USA
| | - Marley J Dewey
- Department of Materials Science and Engineering, Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Aleczandria S Tiffany
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Brendan A C Harley
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Justine C Lee
- Division of Plastic and Reconstructive Surgery, UCLA David Geffen School of Medicine, Los Angeles, CA, 90095, USA
- Research Service, Greater Los Angeles VA Healthcare System, Los Angeles, CA, 90073, USA
- UCLA Molecular Biology Institute, Los Angeles, CA, 90095, USA
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218
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Cosgrove BD, Loebel C, Driscoll TP, Tsinman TK, Dai EN, Heo SJ, Dyment NA, Burdick JA, Mauck RL. Nuclear envelope wrinkling predicts mesenchymal progenitor cell mechano-response in 2D and 3D microenvironments. Biomaterials 2021; 270:120662. [PMID: 33540172 PMCID: PMC7936657 DOI: 10.1016/j.biomaterials.2021.120662] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 08/24/2020] [Accepted: 01/03/2021] [Indexed: 12/21/2022]
Abstract
Exogenous mechanical cues are transmitted from the extracellular matrix to the nuclear envelope (NE), where mechanical stress on the NE mediates shuttling of transcription factors and other signaling cascades that dictate downstream cellular behavior and fate decisions. To systematically study how nuclear morphology can change across various physiologic microenvironmental contexts, we cultured mesenchymal progenitor cells (MSCs) in engineered 2D and 3D hyaluronic acid hydrogel systems. Across multiple contexts we observed highly 'wrinkled' nuclear envelopes, and subsequently developed a quantitative single-cell imaging metric to better evaluate how wrinkles in the nuclear envelope relate to progenitor cell mechanotransduction. We determined that in soft 2D environments the NE is predominately wrinkled, and that increases in cellular mechanosensing (indicated by cellular spreading, adhesion complex growth, and nuclear localization of YAP/TAZ) occurred only in absence of nuclear envelope wrinkling. Conversely, in 3D hydrogel and tissue contexts, we found NE wrinkling occurred along with increased YAP/TAZ nuclear localization. We further determined that these NE wrinkles in 3D were largely generated by actin impingement, and compared to other nuclear morphometrics, the degree of nuclear wrinkling showed the greatest correlation with nuclear YAP/TAZ localization. These findings suggest that the degree of nuclear envelope wrinkling can predict mechanotransduction state in mesenchymal progenitor cells and highlights the differential mechanisms of NE stress generation operative in 2D and 3D microenvironmental contexts.
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Affiliation(s)
- Brian D Cosgrove
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Department of Bioengineering, University of Pennsylvania Philadelphia, PA, 19104, USA; Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center, Philadelphia, PA, 19104, USA
| | - Claudia Loebel
- Department of Bioengineering, University of Pennsylvania Philadelphia, PA, 19104, USA; Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center, Philadelphia, PA, 19104, USA
| | - Tristan P Driscoll
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Department of Bioengineering, University of Pennsylvania Philadelphia, PA, 19104, USA; Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center, Philadelphia, PA, 19104, USA
| | - Tonia K Tsinman
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Department of Bioengineering, University of Pennsylvania Philadelphia, PA, 19104, USA; Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center, Philadelphia, PA, 19104, USA
| | - Eric N Dai
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Department of Bioengineering, University of Pennsylvania Philadelphia, PA, 19104, USA; Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center, Philadelphia, PA, 19104, USA
| | - Su-Jin Heo
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Department of Bioengineering, University of Pennsylvania Philadelphia, PA, 19104, USA; Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center, Philadelphia, PA, 19104, USA
| | - Nathaniel A Dyment
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Department of Bioengineering, University of Pennsylvania Philadelphia, PA, 19104, USA
| | - Jason A Burdick
- Department of Bioengineering, University of Pennsylvania Philadelphia, PA, 19104, USA
| | - Robert L Mauck
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA; Department of Bioengineering, University of Pennsylvania Philadelphia, PA, 19104, USA; Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center, Philadelphia, PA, 19104, USA.
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219
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Namba N, Chonan Y, Nunokawa T, Sampetrean O, Saya H, Sudo R. Heterogeneous Glioma Cell Invasion Under Interstitial Flow Depending on Their Differentiation Status. Tissue Eng Part A 2021; 27:467-478. [PMID: 33403936 DOI: 10.1089/ten.tea.2020.0280] [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] [Indexed: 12/31/2022] Open
Abstract
Glioblastoma (GBM) is the most common and lethal type of malignant brain tumor. A deeper mechanistic understanding of the invasion of heterogeneous GBM cell populations is crucial to develop therapeutic strategies. A key regulator of GBM cell invasion is interstitial flow. However, the effect of an interstitial flow on the invasion of heterogeneous GBM cell populations composed of glioma initiating cells (GICs) and relatively differentiated progeny cells remains unclear. In the present study, we investigated how GICs invade three-dimensional (3D) hydrogels in response to an interstitial flow with respect to their differentiation status. Microfluidic culture systems were used to apply an interstitial flow to the cells migrating from the cell aggregates into the 3D hydrogel. Phase-contrast microscopy revealed that the invasion and protrusion formation of the GICs in differentiated cell conditions were significantly enhanced by a forward interstitial flow, whose direction was the same as that of the cell invasion, whereas those in stem cell conditions were not enhanced by the interstitial flow. The mechanism of flow-induced invasion was further investigated by focusing on differentiated cell conditions. Immunofluorescence images revealed that the expression of cell-extracellular matrix adhesion-associated molecules, such as integrin β1, focal adhesion kinase, and phosphorylated Src, was upregulated in forward interstitial flow conditions. We then confirmed that cell invasion and protrusion formation were significantly inhibited by PP2, a Src inhibitor. Finally, we observed that the flow-induced cell invasion was preceded by nestin-positive immature GICs at the invasion front and followed by tubulin β3-positive differentiated cells. Our findings provide insights into the development of novel therapeutic strategies to inhibit flow-induced glioma invasion. Impact statement A mechanistic understanding of heterogeneous glioblastoma cell invasion is crucial for developing therapeutic strategies. We observed that the invasion and protrusion formation of glioma initiating cells (GICs) were significantly enhanced by forward interstitial flow in differentiated cell conditions. The expression of integrin β1, focal adhesion kinase, and phosphorylated Src was upregulated, and the flow-induced invasion was significantly inhibited by a Src inhibitor. The flow-induced heterogeneous cell invasion was preceded by nestin-positive GICs at the invasion front and followed by tubulin β3-positive differentiated cells. Our findings provide insights into the development of novel therapeutic strategies to inhibit flow-induced glioma invasion.
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Affiliation(s)
- Naoko Namba
- Department of System Design Engineering, Keio University, Yokohama, Japan
| | - Yuta Chonan
- Department of System Design Engineering, Keio University, Yokohama, Japan
| | - Takehito Nunokawa
- Department of System Design Engineering, Keio University, Yokohama, Japan
| | - Oltea Sampetrean
- Division of Gene Regulation, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - Hideyuki Saya
- Division of Gene Regulation, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - Ryo Sudo
- Department of System Design Engineering, Keio University, Yokohama, Japan
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220
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Hooglugt A, van der Stoel MM, Boon RA, Huveneers S. Endothelial YAP/TAZ Signaling in Angiogenesis and Tumor Vasculature. Front Oncol 2021; 10:612802. [PMID: 33614496 PMCID: PMC7890025 DOI: 10.3389/fonc.2020.612802] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 12/07/2020] [Indexed: 12/14/2022] Open
Abstract
Solid tumors are dependent on vascularization for their growth. The hypoxic, stiff, and pro-angiogenic tumor microenvironment induces angiogenesis, giving rise to an immature, proliferative, and permeable vasculature. The tumor vessels promote tumor metastasis and complicate delivery of anti-cancer therapies. In many types of tumors, YAP/TAZ activation is correlated with increased levels of angiogenesis. In addition, endothelial YAP/TAZ activation is important for the formation of new blood and lymphatic vessels during development. Oncogenic activation of YAP/TAZ in tumor cell growth and invasion has been studied in great detail, however the role of YAP/TAZ within the tumor endothelium remains insufficiently understood, which complicates therapeutic strategies aimed at targeting YAP/TAZ in cancer. Here, we overview the upstream signals from the tumor microenvironment that control endothelial YAP/TAZ activation and explore the role of their downstream targets in driving tumor angiogenesis. We further discuss the potential for anti-cancer treatments and vascular normalization strategies to improve tumor therapies.
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Affiliation(s)
- Aukie Hooglugt
- Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Department of Physiology, Amsterdam Cardiovascular Sciences, Amsterdam UMC, VU University Medical Center, Amsterdam, Netherlands
| | - Miesje M. van der Stoel
- Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Reinier A. Boon
- Department of Physiology, Amsterdam Cardiovascular Sciences, Amsterdam UMC, VU University Medical Center, Amsterdam, Netherlands
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein-Main, Berlin, Germany
- Institute of Cardiovascular Regeneration, Goethe University, Frankfurt am Main, Germany
| | - Stephan Huveneers
- Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
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221
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Lee JH, Choi ST, Kang YJ. Kahweol, a Diterpenoid Molecule, Inhibits CTGF-Dependent Synthetic Phenotype Switching and Migration in Vascular Smooth Muscle Cells. Molecules 2021; 26:molecules26030640. [PMID: 33530626 PMCID: PMC7865488 DOI: 10.3390/molecules26030640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/22/2021] [Accepted: 01/22/2021] [Indexed: 01/08/2023] Open
Abstract
Vascular smooth muscle cell (VSMC) phenotype switching from contractile to synthetic is essential for proliferation and migration in vascular pathophysiology. Connective tissue growth factor (CTGF) is a matricellular protein involved in cell adhesion, migration, and proliferation. Kahweol, a diterpene molecule in arabica coffee beans, has been reported to have anti-inflammatory, antiproliferative, and apoptotic effects in many cells. However, in VSMCs, the effects of kahweol on CTGF activities have not been investigated. Thus, in this study, the effects and associated mechanisms of kahweol in CTGF-dependent phenotype switching and migration in VSMCs were examined. Experiments were performed on primary rat aortic smooth muscle cells and a rat VSMC line, A7r5. Western blot analysis was used to determine the protein levels. The mRNA levels of synthetic markers were measured by qRT-PCR. Migration of VSMCs was evaluated by wound healing and transwell assays. Kahweol reduced the angiotensin II (Ang II)-induced CTGF expression. Further, kahweol inhibited expressions of synthetic phenotype markers of VSMC. The kahweol-reduced synthetic marker protein levels were reversed by the administration of rCTGF. However, expressions of contractile phenotype markers of VSMC were not affected. Kahweol suppressed Ang II-stimulated VSMC migration. Moreover, kahweol downregulated Ang II-induced p-FAK, p-Erk, and Yes-associated protein (YAP) protein expressions. Taken together, in Ang II-stimulated VSMCs, kahweol inhibited CTGF-dependent synthetic phenotype switching and migration, with focal adhesion kinase (FAK), Erk, and YAP involved in the underlying mechanisms of the kahweol effects. These results suggest that kahweol has a potential as a therapeutic agent to inhibit CTGF, which is a molecular target in sclerogenic vascular disease.
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Affiliation(s)
- Jeong Hee Lee
- Department of Pharmacology, College of Medicine, Yeungnam University, 170 Hyunchung-Ro, Nam-Gu, Daegu 42415, Korea;
| | - Seok Tae Choi
- Department of Microbiology, Yeungnam University, 170 Hyunchung-Ro, Nam-Gu, Daegu 42415, Korea;
| | - Young Jin Kang
- Department of Pharmacology, College of Medicine, Yeungnam University, 170 Hyunchung-Ro, Nam-Gu, Daegu 42415, Korea;
- Correspondence: ; Tel.: +82-53-640-6972; Fax: +82-53-656-7995
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222
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Dwivedi N, Das S, Bellare J, Majumder A. Viscoelastic substrate decouples cellular traction force from other related phenotypes. Biochem Biophys Res Commun 2021; 543:38-44. [PMID: 33508771 DOI: 10.1016/j.bbrc.2021.01.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 01/11/2021] [Indexed: 01/03/2023]
Abstract
Survival and maintenance of normal physiological functions depends on continuous interaction of cells with its microenvironment. Cells sense the mechanical properties of underlying substrate by applying force and modulate their behaviour in response to the resistance offered by the substrate. Most of the studies addressing cell-substrate mechanical interactions have been carried out using elastic substrates. Since tissues within our body are viscoelastic in nature, here we explore the effect of substrate's viscoelasticity on various properties of mesenchymal stem cells. Here, we used two sets of polyacrylamide substrates having similar storage modulus (G' = 1.1-1.6 kPa) but different loss modulus (G" = 45 Pa and 300 Pa). We report that human mesenchymal stem cells spread more but apply less force on the viscoelastic substrate (substrate with higher loss modulus). We further investigated the effect of substrate viscoelasticity on the expression of other contractility-associated proteins such as focal adhesion (FA) proteins (Vinculin, Paxillin, Talin), cytoskeletal proteins (actin, mysion, intermediate filaments, and microtubules) and mechano-sensor protein Yes-Associated Protein (YAP). Our results show that substrate viscoelasticity decouples cellular traction from other known traction related phenotypes.
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Affiliation(s)
- Nehal Dwivedi
- Department of Chemical Engineering, Indian Institute of Technology Bombay (IITB), Mumbai, 400076, India
| | - Siddhartha Das
- Department of Chemical Engineering, Indian Institute of Technology Bombay (IITB), Mumbai, 400076, India
| | - Jayesh Bellare
- Department of Chemical Engineering, Indian Institute of Technology Bombay (IITB), Mumbai, 400076, India
| | - Abhijit Majumder
- Department of Chemical Engineering, Indian Institute of Technology Bombay (IITB), Mumbai, 400076, India.
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223
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Matarrese P, Vona R, Ascione B, Paggi MG, Mileo AM. Physical Interaction between HPV16E7 and the Actin-Binding Protein Gelsolin Regulates Epithelial-Mesenchymal Transition via HIPPO-YAP Axis. Cancers (Basel) 2021; 13:cancers13020353. [PMID: 33477952 PMCID: PMC7836002 DOI: 10.3390/cancers13020353] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 01/15/2021] [Indexed: 02/07/2023] Open
Abstract
Human papillomavirus 16 (HPV16) exhibits a strong oncogenic potential mainly in cervical, anogenital and oropharyngeal cancers. The E6 and E7 viral oncoproteins, acting via specific interactions with host cellular targets, are required for cell transformation and maintenance of the transformed phenotype as well. We previously demonstrated that HPV16E7 interacts with the actin-binding protein gelsolin, involved in cytoskeletal F-actin dynamics. Herein, we provide evidence that the E7/gelsolin interaction promotes the cytoskeleton rearrangement leading to epithelial-mesenchymal transition-linked morphological and transcriptional changes. E7-mediated cytoskeletal actin remodeling induces the HIPPO pathway by promoting the cytoplasmic retention of inactive P-YAP. These results suggest that YAP could play a role in the "de-differentiation" process underlying the acquisition of a more aggressive phenotype in HPV16-transformed cells. A deeper comprehension of the multifaceted mechanisms elicited by the HPV infection is vital for providing novel strategies to block the biological and clinical features of virus-related cancers.
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Affiliation(s)
- Paola Matarrese
- Center for Gender-Specific Medicine, Oncology Unit, Istituto Superiore di Sanità, 00161 Rome, Italy; (P.M.); (R.V.); (B.A.)
| | - Rosa Vona
- Center for Gender-Specific Medicine, Oncology Unit, Istituto Superiore di Sanità, 00161 Rome, Italy; (P.M.); (R.V.); (B.A.)
| | - Barbara Ascione
- Center for Gender-Specific Medicine, Oncology Unit, Istituto Superiore di Sanità, 00161 Rome, Italy; (P.M.); (R.V.); (B.A.)
| | - Marco G. Paggi
- Cellular Networks and Molecular Therapeutic Targets, Proteomics Unit, IRCCS—Regina Elena National Cancer Institute Rome, 00144 Rome, Italy
- Correspondence: (M.G.P.); (A.M.M.); Tel.: +39-0652662550 (M.G.P. & A.M.M.)
| | - Anna Maria Mileo
- Tumor Immunology and Immunotherapy Unit, IRCCS—Regina Elena National Cancer Institute Rome, 00144 Rome, Italy
- Correspondence: (M.G.P.); (A.M.M.); Tel.: +39-0652662550 (M.G.P. & A.M.M.)
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Pennacchio FA, Nastały P, Poli A, Maiuri P. Tailoring Cellular Function: The Contribution of the Nucleus in Mechanotransduction. Front Bioeng Biotechnol 2021; 8:596746. [PMID: 33490050 PMCID: PMC7820809 DOI: 10.3389/fbioe.2020.596746] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 12/02/2020] [Indexed: 12/13/2022] Open
Abstract
Cells sense a variety of different mechanochemical stimuli and promptly react to such signals by reshaping their morphology and adapting their structural organization and tensional state. Cell reactions to mechanical stimuli arising from the local microenvironment, mechanotransduction, play a crucial role in many cellular functions in both physiological and pathological conditions. To decipher this complex process, several studies have been undertaken to develop engineered materials and devices as tools to properly control cell mechanical state and evaluate cellular responses. Recent reports highlight how the nucleus serves as an important mechanosensor organelle and governs cell mechanoresponse. In this review, we will introduce the basic mechanisms linking cytoskeleton organization to the nucleus and how this reacts to mechanical properties of the cell microenvironment. We will also discuss how perturbations of nucleus-cytoskeleton connections, affecting mechanotransduction, influence health and disease. Moreover, we will present some of the main technological tools used to characterize and perturb the nuclear mechanical state.
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Affiliation(s)
- Fabrizio A. Pennacchio
- FIRC (Italian Foundation for Cancer Research) Institute of Molecular Oncology (IFOM), Milan, Italy
| | - Paulina Nastały
- FIRC (Italian Foundation for Cancer Research) Institute of Molecular Oncology (IFOM), Milan, Italy
- Laboratory of Translational Oncology, Institute of Medical Biotechnology and Experimental Oncology, Medical University of Gdańsk, Gdańsk, Poland
| | - Alessandro Poli
- FIRC (Italian Foundation for Cancer Research) Institute of Molecular Oncology (IFOM), Milan, Italy
| | - Paolo Maiuri
- FIRC (Italian Foundation for Cancer Research) Institute of Molecular Oncology (IFOM), Milan, Italy
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225
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Perestrelo AR, Silva AC, Oliver-De La Cruz J, Martino F, Horváth V, Caluori G, Polanský O, Vinarský V, Azzato G, de Marco G, Žampachová V, Skládal P, Pagliari S, Rainer A, Pinto-do-Ó P, Caravella A, Koci K, Nascimento DS, Forte G. Multiscale Analysis of Extracellular Matrix Remodeling in the Failing Heart. Circ Res 2021; 128:24-38. [PMID: 33106094 DOI: 10.1161/circresaha.120.317685] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 10/25/2020] [Indexed: 12/14/2022]
Abstract
RATIONALE Cardiac ECM (extracellular matrix) comprises a dynamic molecular network providing structural support to heart tissue function. Understanding the impact of ECM remodeling on cardiac cells during heart failure (HF) is essential to prevent adverse ventricular remodeling and restore organ functionality in affected patients. OBJECTIVES We aimed to (1) identify consistent modifications to cardiac ECM structure and mechanics that contribute to HF and (2) determine the underlying molecular mechanisms. METHODS AND RESULTS We first performed decellularization of human and murine ECM (decellularized ECM) and then analyzed the pathological changes occurring in decellularized ECM during HF by atomic force microscopy, 2-photon microscopy, high-resolution 3-dimensional image analysis, and computational fluid dynamics simulation. We then performed molecular and functional assays in patient-derived cardiac fibroblasts based on YAP (yes-associated protein)-transcriptional enhanced associate domain (TEAD) mechanosensing activity and collagen contraction assays. The analysis of HF decellularized ECM resulting from ischemic or dilated cardiomyopathy, as well as from mouse infarcted tissue, identified a common pattern of modifications in their 3-dimensional topography. As compared with healthy heart, HF ECM exhibited aligned, flat, and compact fiber bundles, with reduced elasticity and organizational complexity. At the molecular level, RNA sequencing of HF cardiac fibroblasts highlighted the overrepresentation of dysregulated genes involved in ECM organization, or being connected to TGFβ1 (transforming growth factor β1), interleukin-1, TNF-α, and BDNF signaling pathways. Functional tests performed on HF cardiac fibroblasts pointed at mechanosensor YAP as a key player in ECM remodeling in the diseased heart via transcriptional activation of focal adhesion assembly. Finally, in vitro experiments clarified pathological cardiac ECM prevents cell homing, thus providing further hints to identify a possible window of action for cell therapy in cardiac diseases. CONCLUSIONS Our multiparametric approach has highlighted repercussions of ECM remodeling on cell homing, cardiac fibroblast activation, and focal adhesion protein expression via hyperactivated YAP signaling during HF.
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MESH Headings
- Adaptor Proteins, Signal Transducing/genetics
- Adaptor Proteins, Signal Transducing/metabolism
- Animals
- Cardiomyopathy, Dilated/genetics
- Cardiomyopathy, Dilated/metabolism
- Cardiomyopathy, Dilated/pathology
- Cardiomyopathy, Dilated/physiopathology
- Case-Control Studies
- Cell Movement
- Cells, Cultured
- Disease Models, Animal
- Extracellular Matrix/genetics
- Extracellular Matrix/metabolism
- Extracellular Matrix/ultrastructure
- Fibroblasts/metabolism
- Fibroblasts/ultrastructure
- Heart Failure/genetics
- Heart Failure/metabolism
- Heart Failure/pathology
- Heart Failure/physiopathology
- Humans
- Mechanotransduction, Cellular
- Mice, Inbred C57BL
- Myocardial Infarction/genetics
- Myocardial Infarction/metabolism
- Myocardial Infarction/pathology
- Myocardial Infarction/physiopathology
- Myocardium/metabolism
- Myocardium/ultrastructure
- Transcription Factors/genetics
- Transcription Factors/metabolism
- Ventricular Function, Left
- Ventricular Remodeling
- YAP-Signaling Proteins
- Mice
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Affiliation(s)
- Ana Rubina Perestrelo
- International Clinical Research Center, St. Anne's University Hospital Brno, Czech Republic (A.R.P., J.O.-D.L.C., F.M., V.H., G.C., O.P., V.V., S.P., K.K., G.F.)
| | - Ana Catarina Silva
- Instituto de Investigação e Inovação em Saúde and Instituto Nacional de Engenharia Biomédica, Universidade do Porto (A.C.S., P.P.-d.Ó., D.S.N.)
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal (A.C.S., P.P.-d.Ó., D.S.N.)
- Gladstone Institute University of Cardiovascular Disease, San Francisco (A.C.S., J.O.-D.L.C.)
| | - Jorge Oliver-De La Cruz
- International Clinical Research Center, St. Anne's University Hospital Brno, Czech Republic (A.R.P., J.O.-D.L.C., F.M., V.H., G.C., O.P., V.V., S.P., K.K., G.F.)
- Gladstone Institute University of Cardiovascular Disease, San Francisco (A.C.S., J.O.-D.L.C.)
- Competence Center for Mechanobiology in Regenerative Medicine, INTERREG ATCZ133, Brno, Czech Republic (J.O.-D.L.C., F.M., V.V., G.F.)
| | - Fabiana Martino
- International Clinical Research Center, St. Anne's University Hospital Brno, Czech Republic (A.R.P., J.O.-D.L.C., F.M., V.H., G.C., O.P., V.V., S.P., K.K., G.F.)
- Competence Center for Mechanobiology in Regenerative Medicine, INTERREG ATCZ133, Brno, Czech Republic (J.O.-D.L.C., F.M., V.V., G.F.)
- Faculty of Medicine, Department of Biology, Masaryk University, CZ-62500 Brno, Czech Republic (F.M.)
| | - Vladimír Horváth
- International Clinical Research Center, St. Anne's University Hospital Brno, Czech Republic (A.R.P., J.O.-D.L.C., F.M., V.H., G.C., O.P., V.V., S.P., K.K., G.F.)
- Centre for Cardiovascular and Transplant Surgery, Brno, Czech Republic (V.H.)
| | - Guido Caluori
- International Clinical Research Center, St. Anne's University Hospital Brno, Czech Republic (A.R.P., J.O.-D.L.C., F.M., V.H., G.C., O.P., V.V., S.P., K.K., G.F.)
- Central European Institute for Technology, Masaryk University, Brno, Czech Republic (G.C., P.S.)
| | - Ondřej Polanský
- International Clinical Research Center, St. Anne's University Hospital Brno, Czech Republic (A.R.P., J.O.-D.L.C., F.M., V.H., G.C., O.P., V.V., S.P., K.K., G.F.)
| | - Vladimír Vinarský
- International Clinical Research Center, St. Anne's University Hospital Brno, Czech Republic (A.R.P., J.O.-D.L.C., F.M., V.H., G.C., O.P., V.V., S.P., K.K., G.F.)
- Competence Center for Mechanobiology in Regenerative Medicine, INTERREG ATCZ133, Brno, Czech Republic (J.O.-D.L.C., F.M., V.V., G.F.)
| | - Giulia Azzato
- Department of Computer Engineering, Modelling, Electronics and Systems Engineering (G.A., A.C.), University of Calabria, Rende, Italy
| | - Giuseppe de Marco
- Information Technology Center (G.d.M.), University of Calabria, Rende, Italy
| | - Víta Žampachová
- First Institute of Pathological Anatomy, St. Anne's University Hospital Brno and Masaryk University, Brno, Czech Republic (V.Ž.)
| | - Petr Skládal
- Central European Institute for Technology, Masaryk University, Brno, Czech Republic (G.C., P.S.)
| | - Stefania Pagliari
- International Clinical Research Center, St. Anne's University Hospital Brno, Czech Republic (A.R.P., J.O.-D.L.C., F.M., V.H., G.C., O.P., V.V., S.P., K.K., G.F.)
| | - Alberto Rainer
- Università Campus Bio-Medico di Roma, Rome, Italy (A.R.)
- Institute of Nanotechnologies (NANOTEC), National Research Council, Lecce, Italy (A.R.)
| | - Perpétua Pinto-do-Ó
- Instituto de Investigação e Inovação em Saúde and Instituto Nacional de Engenharia Biomédica, Universidade do Porto (A.C.S., P.P.-d.Ó., D.S.N.)
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal (A.C.S., P.P.-d.Ó., D.S.N.)
| | - Alessio Caravella
- Department of Computer Engineering, Modelling, Electronics and Systems Engineering (G.A., A.C.), University of Calabria, Rende, Italy
| | - Kamila Koci
- International Clinical Research Center, St. Anne's University Hospital Brno, Czech Republic (A.R.P., J.O.-D.L.C., F.M., V.H., G.C., O.P., V.V., S.P., K.K., G.F.)
| | - Diana S Nascimento
- Instituto de Investigação e Inovação em Saúde and Instituto Nacional de Engenharia Biomédica, Universidade do Porto (A.C.S., P.P.-d.Ó., D.S.N.)
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal (A.C.S., P.P.-d.Ó., D.S.N.)
| | - Giancarlo Forte
- International Clinical Research Center, St. Anne's University Hospital Brno, Czech Republic (A.R.P., J.O.-D.L.C., F.M., V.H., G.C., O.P., V.V., S.P., K.K., G.F.)
- Competence Center for Mechanobiology in Regenerative Medicine, INTERREG ATCZ133, Brno, Czech Republic (J.O.-D.L.C., F.M., V.V., G.F.)
- Department of Biomaterials Science, Institute of Dentistry, University of Turku, Finland (G.F.)
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226
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Maldonado H, Hagood JS. Cooperative signaling between integrins and growth factor receptors in fibrosis. J Mol Med (Berl) 2021; 99:213-224. [DOI: 10.1007/s00109-020-02026-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 11/16/2020] [Accepted: 12/14/2020] [Indexed: 12/11/2022]
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227
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Jang M, An J, Oh SW, Lim JY, Kim J, Choi JK, Cheong JH, Kim P. Matrix stiffness epigenetically regulates the oncogenic activation of the Yes-associated protein in gastric cancer. Nat Biomed Eng 2021; 5:114-123. [PMID: 33288878 DOI: 10.1038/s41551-020-00657-x] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 11/04/2020] [Indexed: 01/30/2023]
Abstract
In many cancers, tumour progression is associated with increased tissue stiffness. Yet, the mechanisms associating tissue stiffness with tumorigenesis and malignant transformation are unclear. Here we show that in gastric cancer cells, the stiffness of the extracellular matrix reversibly regulates the DNA methylation of the promoter region of the mechanosensitive Yes-associated protein (YAP). Reciprocal interactions between YAP and the DNA methylation inhibitors GRHL2, TET2 and KMT2A can cause hypomethylation of the YAP promoter and stiffness-induced oncogenic activation of YAP. Direct alteration of extracellular cues via in situ matrix softening reversed YAP activity and the epigenetic program. Our findings suggest that epigenetic reprogramming of the mechanophysical properties of the extracellular microenvironment of solid tumours may represent a therapeutic strategy for the inhibition of cancer progression.
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Affiliation(s)
- Minjeong Jang
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Jinhyeon An
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Seung Won Oh
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Joo Yeon Lim
- Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Joon Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Jung Kyoon Choi
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
| | - Jae-Ho Cheong
- Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - Pilnam Kim
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea. .,Institute for Health Science and Technology, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
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228
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Heng BC, Zhang X, Aubel D, Bai Y, Li X, Wei Y, Fussenegger M, Deng X. An overview of signaling pathways regulating YAP/TAZ activity. Cell Mol Life Sci 2021; 78:497-512. [PMID: 32748155 PMCID: PMC11071991 DOI: 10.1007/s00018-020-03579-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/07/2020] [Accepted: 06/22/2020] [Indexed: 12/11/2022]
Abstract
YAP and TAZ are ubiquitously expressed homologous proteins originally identified as penultimate effectors of the Hippo signaling pathway, which plays a key role in maintaining mammalian tissue/organ size. Presently, it is known that YAP/TAZ also interact with various non-Hippo signaling pathways, and have diverse roles in multiple biological processes, including cell proliferation, tissue regeneration, cell lineage fate determination, tumorigenesis, and mechanosensing. In this review, we first examine the various microenvironmental cues and signaling pathways that regulate YAP/TAZ activation, through the Hippo and non-Hippo signaling pathways. This is followed by a brief summary of the interactions of YAP/TAZ with TEAD1-4 and a diverse array of other non-TEAD transcription factors. Finally, we offer a critical perspective on how increasing knowledge of the regulatory mechanisms of YAP/TAZ signaling might open the door to novel therapeutic applications in the interrelated fields of biomaterials, tissue engineering, regenerative medicine and synthetic biology.
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Affiliation(s)
- Boon Chin Heng
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China
- Faculty of Science and Technology, Sunway University, Selangor Darul Ehsan, Malaysia
| | - Xuehui Zhang
- Department of Dental Materials & Dental Medical Devices Testing Center, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China
| | - Dominique Aubel
- IUTA, Departement Genie Biologique, Universite, Claude Bernard Lyon 1, Villeurbanne Cedex, France
| | - Yunyang Bai
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China
| | - Xiaochan Li
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China
| | - Yan Wei
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China
| | - Martin Fussenegger
- Department of Biosystems Science and Engineering, ETH-Zurich, Mattenstrasse 26, Basel, 4058, Switzerland.
| | - Xuliang Deng
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China.
- National Engineering Laboratory for Digital and Material Technology of Stomatology, NMPA Key Laboratory for Dental Materials, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China.
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229
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Wang Y, Yang Y, Yoshitomi T, Kawazoe N, Yang Y, Chen G. Regulation of gene transfection by cell size, shape and elongation on micropatterned surfaces. J Mater Chem B 2021; 9:4329-4339. [PMID: 34013946 DOI: 10.1039/d1tb00815c] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Gene transfection has been widely studied due to its potential applications in tissue repair and gene therapy. Many studies have focused on designing gene carriers and developing novel transfection techniques. However, the influence of cell size, shape and elongation on gene transfection has rarely been investigated. In this study, poly(vinyl alcohol)-micropatterned surfaces were prepared to precisely manipulate the size, shape and elongation of mesenchymal stem cells, and the influences of these factors on gene transfection were investigated. Cell size showed a significant influence on gene transfection. Elongation could affect the gene transfection of large cells but not small cells. Cells with a large spreading area and high aspect ratio showed high transfection with exogenous plasmid DNA. In particular, the transfection efficiency was the highest in micropatterned cells with a spreading area of 5024 μm2 and an aspect ratio of 8 : 1. In contrast, cell shape had no significant influence on gene transfection. The different influences of cell size, shape and elongation were correlated with their respective impacts on cytoskeletal structures, cellular nanoparticle uptake and DNA synthesis. Cells with a large size and elongated morphology showed well-organized actin filaments with a high cellular modulus, therefore promoting cellular nanoparticle uptake and DNA synthesis. Cells with different shapes showed similarities in actin filament organization, cellular modulus, uptake capacity and DNA synthesis. The results suggest the importance of cell size and elongation in exogenous gene transfection and should provide useful information for gene transfection and gene therapy.
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Affiliation(s)
- Yongtao Wang
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. and Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Yingjun Yang
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. and Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Toru Yoshitomi
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
| | - Naoki Kawazoe
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
| | - Yingnan Yang
- Graduate School of Life and Environmental Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Guoping Chen
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. and Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
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230
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Tang H, Yi B, Wang X, Shen Y, Zhang Y. Understanding the cellular responses based on low-density electrospun fiber networks. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 119:111470. [PMID: 33321594 DOI: 10.1016/j.msec.2020.111470] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 08/14/2020] [Accepted: 08/25/2020] [Indexed: 01/12/2023]
Abstract
Fibers produced from electrospinning are well-known to be extremely fine with diameters ranging from tens of nanometers to a few microns. Such ultrafine fibers not only allow for engineering scaffolds resembling the ultrastructure of the native extracellular matrix, but also offer possibility to explore the remodeling behavior of cells in vitro, due to their mechanically 'adequate' softness endowed by their ultrafine fineness. However, the remodeling effect of cells on the biomimicking fibrous substrates remains to be understood, because the crisscrossing and entangling among nanofibers in those tightly packed fibrous mats ultimately lead to merely a topological phenomenon, similar to that of the nanofiber-like topography embossed on the surface of a solid matter. In this study, the effect of nanofiber density on cellular response behavior was investigated by reducing the density of electrospun fiber networks. Using polycaprolactone (PCL) as a model polymer, randomly oriented fiber networks with various densities, namely, 37.7 ± 16.3 μg/cm2 (D1), 103.8 ± 16.3 μg/cm2 (D2), 198.2 ± 40.0 μg/cm2 (D3), and 471.8 ± 32.7 μg/cm2 (D4), were prepared by electrospinning for varied collection durations (10 s, 50 s, 100 s, and 10 min, respectively). By examining the responsive behavior of the human induced pluripotent stem cell-derived mesenchymal stem cells (hiPS-MSCs) cultured on these nanofibrous networks, we showed that the fiber network with a moderate density (D2) is beneficial to the cell attachment, spreading, actin polymerization, contractility and migration. There also showed an increased tendency in nuclear localization of the Yes-associated protein (YAP) and subsequent activation of YAP responsive gene transcription, and cell proliferation and collagen synthesis were also enhanced on the D2. However, further increasing the fiber density (D3, D4) gave rise to weakened induction effect of fibers on the cellular responses. These results enrich our understanding on the effect of fiber density on cell behavior, and disclose the dependence of cellular responses on fiber density. This study paves the way to precisely design biomimetic fibrous scaffolds for achieving enhanced cell-scaffold interactions and tissue regeneration.
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Affiliation(s)
- Han Tang
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
| | - Bingcheng Yi
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
| | - Xianliu Wang
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
| | - Yanbing Shen
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China
| | - Yanzhong Zhang
- College of Chemistry, Chemical Engineering & Biotechnology, Donghua University, Shanghai 201620, China; Key Lab of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, Shanghai 201620, China; Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China; China Orthopaedic Regenerative Medicine Group (CORMed), Hangzhou 310058, China.
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231
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Chen L, Wu C, Wei D, Chen S, Xiao Z, Zhu H, Luo H, Sun J, Fan H. Biomimetic mineralized microenvironment stiffness regulated BMSCs osteogenic differentiation through cytoskeleton mediated mechanical signaling transduction. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 119:111613. [PMID: 33321656 DOI: 10.1016/j.msec.2020.111613] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 10/04/2020] [Accepted: 10/05/2020] [Indexed: 01/03/2023]
Abstract
Construction of biomimetic microenvironment is vital to understand the relationship between matrix mechanical cues and cell fate, as well as to explore potential tissue engineering scaffolds for clinical application. In this study, through the enzymatic mineralizable collagen hydrogel system, we established the biomimetic bone matrix which was capable of realizing mechanical regulation independent of mineralization by incorporation of phosphorylated molecules (vinylphosphonic acid, VAP). Then, based on the biomimetic mineralized matrix with same composition but significantly different mechanical stiffness, we further investigated the effect of matrix stiffness on osteogenic differentiation of bone marrow stromal cells (BMSCs). The results clearly demonstrated that biomimetic mineralized microenvironment with higher mechanical strength promoted osteogenic differentiation of BMSCs. Further mechanism analysis demonstrated that the mineralized hydrogel with higher stiffness promoted cytoskeletal assembly, which enhanced the expression and nuclear colocalization of YAP and RUNX2, thereby promoted the osteogenic differentiation of stem cells. This study supplies a promising material platform not only for bone tissue engineering but also for exploring the mechanism of biomimetic bone matrix mechanics on osteogenesis.
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Affiliation(s)
- Lu Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, Sichuan, PR China; Institute of Regulatory Science for Medical Devices, Sichuan University, Chengdu 610064, Sichuan, PR China
| | - Chengheng Wu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, Sichuan, PR China
| | - Dan Wei
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, Sichuan, PR China
| | - Suping Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, Sichuan, PR China
| | - Zhanwen Xiao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, Sichuan, PR China
| | - Hua Zhu
- College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, PR China
| | - Hongrong Luo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, Sichuan, PR China
| | - Jing Sun
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, Sichuan, PR China
| | - Hongsong Fan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, Sichuan, PR China.
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232
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Parra AS, Johnston CA. Mud Loss Restricts Yki-Dependent Hyperplasia in Drosophila Epithelia. J Dev Biol 2020; 8:E34. [PMID: 33322177 PMCID: PMC7768408 DOI: 10.3390/jdb8040034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/07/2020] [Accepted: 12/10/2020] [Indexed: 02/07/2023] Open
Abstract
Tissue development demands precise control of cell proliferation and organization, which is achieved through multiple conserved signaling pathways and protein complexes in multicellular animals. Epithelia are a ubiquitous tissue type that provide diverse functions including physical protection, barrier formation, chemical exchange, and secretory activity. However, epithelial cells are also a common driver of tumorigenesis; thus, understanding the molecular mechanisms that control their growth dynamics is important in understanding not only developmental mechanisms but also disease. One prominent pathway that regulates epithelial growth is the conserved Hippo/Warts/Yorkie network. Hippo/Warts inactivation, or activating mutations in Yorkie that prevent its phosphorylation (e.g., YkiS168A), drive hyperplastic tissue growth. We recently reported that loss of Mushroom body defect (Mud), a microtubule-associated protein that contributes to mitotic spindle function, restricts YkiS168A-mediated growth in Drosophila imaginal wing disc epithelia. Here we show that Mud loss alters cell cycle progression and triggers apoptosis with accompanying Jun kinase (JNK) activation in YkiS168A-expressing discs. To identify additional molecular insights, we performed RNAseq and differential gene expression profiling. This analysis revealed that Mud knockdown in YkiS168A-expressing discs resulted in a significant downregulation in expression of core basement membrane (BM) and extracellular matrix (ECM) genes, including the type IV collagen gene viking. Furthermore, we found that YkiS168A-expressing discs accumulated increased collagen protein, which was reduced following Mud knockdown. Our results suggest that ECM/BM remodeling can limit untoward growth initiated by an important driver of tumor growth and highlight a potential regulatory link with cytoskeleton-associated genes.
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233
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Maehama T, Nishio M, Otani J, Mak TW, Suzuki A. The role of Hippo-YAP signaling in squamous cell carcinomas. Cancer Sci 2020; 112:51-60. [PMID: 33159406 PMCID: PMC7780025 DOI: 10.1111/cas.14725] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/01/2020] [Accepted: 11/04/2020] [Indexed: 12/13/2022] Open
Abstract
The Hippo‐YAP pathway regulates organ size, tissue homeostasis, and tumorigenesis in mammals. In response to cell density, external mechanical pressure, and/or other stimuli, the Hippo core complex controls the translocation of YAP1/TAZ proteins to the nucleus and thereby regulates cell growth. Abnormal upregulation or nuclear localization of YAP1/TAZ occurs in many human malignancies and promotes their formation, progression, and metastasis. A key example is squamous cell carcinoma (SCC) genesis. Many risk factors and crucial signals associated with SCC development in various tissues accelerate YAP1/TAZ accumulation, and mice possessing constitutively activated YAP1/TAZ show immediate carcinoma in situ (CIS) formation in these tissues. Because CIS onset is so rapid in these mutants, we propose that many SCCs initiate and progress when YAP1 activity is sustained and exceeds a certain oncogenic threshold. In this review, we summarize the latest findings on the roles of YAP1/TAZ in several types of SCCs. We also discuss whether targeting aberrant YAP1/TAZ activation might be a promising strategy for SCC treatment.
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Affiliation(s)
- Tomohiko Maehama
- Division of Molecular and Cellular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Miki Nishio
- Division of Molecular and Cellular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Junji Otani
- Division of Molecular and Cellular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tak Wah Mak
- Division of Molecular and Cellular Biology, Kobe University Graduate School of Medicine, Kobe, Japan.,The Princess Margaret Cancer Centre, UHN, Toronto, Canada.,Departments of Immunology and Medical Biophysics, University of Toronto, Toronto, Canada
| | - Akira Suzuki
- Division of Molecular and Cellular Biology, Kobe University Graduate School of Medicine, Kobe, Japan
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234
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Lee Y, Finch-Edmondson M, Cognart H, Zhu B, Song H, Low BC, Sudol M. Common and Unique Transcription Signatures of YAP and TAZ in Gastric Cancer Cells. Cancers (Basel) 2020; 12:cancers12123667. [PMID: 33297432 PMCID: PMC7762230 DOI: 10.3390/cancers12123667] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/30/2020] [Accepted: 12/04/2020] [Indexed: 01/05/2023] Open
Abstract
Simple Summary YAP and TAZ are cancer-causing genes that encode proteins with similar, but not identical functions. YAP and TAZ function in diverse biological processes including cell proliferation and organ size control. Because of the high similarity in functions between YAP and TAZ, they have often been described as one entity: YAP/TAZ. However, new lines of evidence started to suggest that YAP and TAZ have unique functions as well. To understand the YAP- and TAZ-specific functions, we identified genes that are regulated solely by YAP or by TAZ. Our study revealed that YAP plays a distinct role in cell-substrate junctions, which are critical for tumour cell growth, migration, and metastasis, and both YAP and TAZ are involved in regulating blood platelets and lipid metabolism in gastric cancer cells. Abstract YAP and its paralog TAZ are the nuclear effectors of the Hippo tumour-suppressor pathway, and function as transcriptional co-activators to control gene expression in response to mechanical cues. To identify both common and unique transcriptional targets of YAP and TAZ in gastric cancer cells, we carried out RNA-sequencing analysis of overexpressed YAP or TAZ in the corresponding paralogous gene-knockouts (KOs), TAZ KO or YAP KO, respectively. Gene Ontology (GO) analysis of the YAP/TAZ-transcriptional targets revealed activation of genes involved in platelet biology and lipoprotein particle formation as targets that are common for both YAP and TAZ. However, the GO terms for cell-substrate junction were a unique function of YAP. Further, we found that YAP was indispensable for the gastric cancer cells to re-establish cell-substrate junctions on a rigid surface following prolonged culture on a soft substrate. Collectively, our study not only identifies common and unique transcriptional signatures of YAP and TAZ in gastric cancer cells but also reveals a dominant role for YAP over TAZ in the control of cell-substrate adhesion.
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Affiliation(s)
- Yaelim Lee
- Mechanobiology Institute, National University of Singapore, Singapore 117411, Singapore; (H.C.); (B.C.L.); (M.S.)
- Correspondence: (Y.L.); (M.F.-E.)
| | - Megan Finch-Edmondson
- Mechanobiology Institute, National University of Singapore, Singapore 117411, Singapore; (H.C.); (B.C.L.); (M.S.)
- Correspondence: (Y.L.); (M.F.-E.)
| | - Hamizah Cognart
- Mechanobiology Institute, National University of Singapore, Singapore 117411, Singapore; (H.C.); (B.C.L.); (M.S.)
| | - Bowen Zhu
- Genome Institute of Singapore, Agency for Science, Technology and Research, Singapore 138672, Singapore;
- Department of Physiology, National University of Singapore, Singapore 117593, Singapore
| | - Haiwei Song
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore 138673, Singapore;
| | - Boon Chuan Low
- Mechanobiology Institute, National University of Singapore, Singapore 117411, Singapore; (H.C.); (B.C.L.); (M.S.)
- Department of Biological Sciences, National University of Singapore, Singapore 117543, Singapore
| | - Marius Sudol
- Mechanobiology Institute, National University of Singapore, Singapore 117411, Singapore; (H.C.); (B.C.L.); (M.S.)
- Department of Physiology, National University of Singapore, Singapore 117593, Singapore
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235
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Fearing BV, Speer JE, Jing L, Kalathil A, P. Kelly M, M. Buchowski J, P. Zebala L, Luhmann S, C. Gupta M, A. Setton L. Verteporfin treatment controls morphology, phenotype, and global gene expression for cells of the human nucleus pulposus. JOR Spine 2020; 3:e1111. [PMID: 33392449 PMCID: PMC7770208 DOI: 10.1002/jsp2.1111] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 06/24/2020] [Accepted: 07/02/2020] [Indexed: 12/15/2022] Open
Abstract
Cells of the nucleus pulposus (NP) are essential contributors to extracellular matrix synthesis and function of the intervertebral disc. With age and degeneration, the NP becomes stiffer and more dehydrated, which is associated with a loss of phenotype and biosynthetic function for its resident NP cells. Also, with aging, the NP cell undergoes substantial morphological changes from a rounded shape with pronounced vacuoles in the neonate and juvenile, to one that is more flattened and spread with a loss of vacuoles. Here, we make use of the clinically relevant pharmacological treatment verteporfin (VP), previously identified as a disruptor of yes-associated protein-TEA domain family member-binding domain (TEAD) signaling, to promote morphological changes in adult human NP cells in order to study variations in gene expression related to differences in cell shape. Treatment of adult, degenerative human NP cells with VP caused a shift in morphology from a spread, fibroblastic-like shape to a rounded, clustered morphology with decreased transcriptional activity of TEAD and serum-response factor. These changes were accompanied by an increased expression of vacuoles, NP-specific gene markers, and biosynthetic activity. The contemporaneous observation of VP-induced changes in cell shape and prominent, time-dependent changes within the transcriptome of NP cells occurred over all timepoints in culture. Enriched gene sets with the transition to VP-induced cell rounding suggest a major role for cell adhesion, cytoskeletal remodeling, vacuolar lumen, and MAPK activity in the NP phenotypic and functional response to changes in cell shape.
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Affiliation(s)
- Bailey V. Fearing
- Department of Biomedical EngineeringWashington University in St. LouisSt. LouisMissouriUSA
- Department of Orthopaedic SurgeryAtrium Health Musculoskeletal InstituteCharlotteNorth CarolinaUSA
| | - Julie E. Speer
- Department of Biomedical EngineeringWashington University in St. LouisSt. LouisMissouriUSA
| | - Liufang Jing
- Department of Biomedical EngineeringWashington University in St. LouisSt. LouisMissouriUSA
| | - Aravind Kalathil
- Department of Biomedical EngineeringWashington University in St. LouisSt. LouisMissouriUSA
| | - Michael P. Kelly
- Department of Orthopaedic SurgeryWashington University in St. LouisSt. LouisMissouriUSA
| | - Jacob M. Buchowski
- Department of Orthopaedic SurgeryWashington University in St. LouisSt. LouisMissouriUSA
| | - Lukas P. Zebala
- Department of Orthopaedic SurgeryWashington University in St. LouisSt. LouisMissouriUSA
| | - Scott Luhmann
- Department of Orthopaedic SurgeryWashington University in St. LouisSt. LouisMissouriUSA
| | - Munish C. Gupta
- Department of Orthopaedic SurgeryWashington University in St. LouisSt. LouisMissouriUSA
| | - Lori A. Setton
- Department of Biomedical EngineeringWashington University in St. LouisSt. LouisMissouriUSA
- Department of Orthopaedic SurgeryWashington University in St. LouisSt. LouisMissouriUSA
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236
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Song J, Shen X, Huang Z, Liu Y, Cui L, Cui X, Liu CY. Clostridium difficile toxin A and toxin B inhibit YAP in the colonic epithelial cells. J Biochem Mol Toxicol 2020; 35:e22652. [PMID: 33251692 DOI: 10.1002/jbt.22652] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 04/14/2020] [Accepted: 09/29/2020] [Indexed: 11/08/2022]
Abstract
Toxin A (TcdA) and toxin B (TcdB), the two exotoxins of Clostridium difficile, are main causal agents for the colonic epithelium damage in Clostridium difficile infection (CDI). The Hippo pathway is crucial for the control of tissue homeostasis and regeneration of intestines. However, the dysregulation of Hippo pathway in CDI is unclear. Here we show that YAP and TAZ, the transcriptional coactivators downstream of the Hippo pathway, are sequestered in the cytoplasm, degraded, and inactivated by treatment with TcdA and TcdB in colonic epithelial cells. The overexpression of YAP restores the messenger RNA expressions of YAP target genes, attenuates the disruption of cytoskeleton and cell rounding, and rescues the cell proliferation of colonic epithelial cells under exposure of the two toxins. Our results demonstrate that inhibition of YAP and TAZ is involved in the pathogenesis of CDI, implicating that increasing YAP activity could be a potential therapeutic strategy for the CDI treatment.
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Affiliation(s)
- Jinglue Song
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Colorectal Cancer Research Center, Shanghai, China
| | - Xia Shen
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Colorectal Cancer Research Center, Shanghai, China
| | - Zhenyu Huang
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Colorectal Cancer Research Center, Shanghai, China
| | - Yun Liu
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Colorectal Cancer Research Center, Shanghai, China
| | - Long Cui
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Colorectal Cancer Research Center, Shanghai, China
| | - Xuewei Cui
- Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chen-Ying Liu
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Colorectal Cancer Research Center, Shanghai, China
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237
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Rico P, Rodrigo-Navarro A, Sánchez Pérez L, Salmeron-Sanchez M. Borax induces osteogenesis by stimulating NaBC1 transporter via activation of BMP pathway. Commun Biol 2020; 3:717. [PMID: 33247189 PMCID: PMC7695834 DOI: 10.1038/s42003-020-01449-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 11/03/2020] [Indexed: 12/16/2022] Open
Abstract
The intrinsic properties of mesenchymal stem cells (MSCs) make them ideal candidates for tissue engineering applications. Efforts have been made to control MSC behavior by using material systems to engineer synthetic extracellular matrices and/or include soluble factors in the media. This work proposes a simple approach based on ion transporter stimulation to determine stem cell fate that avoids the use of growth factors. Addition of borax alone, transported by the NaBC1-transporter, enhanced MSC adhesion and contractility, promoted osteogenesis and inhibited adipogenesis. Stimulated-NaBC1 promoted osteogenesis via the BMP canonical pathway (comprising Smad1/YAP nucleus translocation and osteopontin expression) through a mechanism that involves simultaneous NaBC1/BMPR1A and NaBC1/α5β1/αvβ3 co-localization. We describe an original function for NaBC1 transporter, besides controlling borate homeostasis, capable of stimulating growth factor receptors and fibronectin-binding integrins. Our results open up new biomaterial engineering approaches for biomedical applications by a cost-effective strategy that avoids the use of soluble growth factors. Rico et al. propose a simple approach based on borax stimulation of NaBC1 transporter, which enhances FN-binding integrin-dependent mesenchymal stem cell adhesion and contractility, promotes osteogenesis and inhibits adipogenesis. Osteogenic differentiation depends on activation of the BMP pathway through a mechanism that involves simultaneous co-localization of NaBC1 with FN-binding integrins and BMPR1A.
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Affiliation(s)
- Patricia Rico
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029, Madrid, Spain. .,Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain.
| | | | - Laura Sánchez Pérez
- Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain
| | - Manuel Salmeron-Sanchez
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029, Madrid, Spain. .,Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain. .,Centre for the Cellular Microenvironment, University of Glasgow, Glasgow, G12 8LT, UK.
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Bajpai A, Li R, Chen W. The cellular mechanobiology of aging: from biology to mechanics. Ann N Y Acad Sci 2020; 1491:3-24. [PMID: 33231326 DOI: 10.1111/nyas.14529] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 10/10/2020] [Accepted: 10/21/2020] [Indexed: 12/14/2022]
Abstract
Aging is a chronic, complicated process that leads to degenerative physical and biological changes in living organisms. Aging is associated with permanent, gradual physiological cellular decay that affects all aspects of cellular mechanobiological features, including cellular cytoskeleton structures, mechanosensitive signaling pathways, and forces in the cell, as well as the cell's ability to sense and adapt to extracellular biomechanical signals in the tissue environment through mechanotransduction. These mechanobiological changes in cells are directly or indirectly responsible for dysfunctions and diseases in various organ systems, including the cardiovascular, musculoskeletal, skin, and immune systems. This review critically examines the role of aging in the progressive decline of the mechanobiology occurring in cells, and establishes mechanistic frameworks to understand the mechanobiological effects of aging on disease progression and to develop new strategies for halting and reversing the aging process. Our review also highlights the recent development of novel bioengineering approaches for studying the key mechanobiological mechanisms in aging.
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Affiliation(s)
- Apratim Bajpai
- Department of Mechanical and Aerospace Engineering, Tandon School of Engineering, New York University, Brooklyn, New York
| | - Rui Li
- Department of Mechanical and Aerospace Engineering, Tandon School of Engineering, New York University, Brooklyn, New York.,Department of Biomedical Engineering, Tandon School of Engineering, New York University, Brooklyn, New York
| | - Weiqiang Chen
- Department of Mechanical and Aerospace Engineering, Tandon School of Engineering, New York University, Brooklyn, New York.,Department of Biomedical Engineering, Tandon School of Engineering, New York University, Brooklyn, New York.,Laura and Isaac Perlmutter Cancer Center, NYU Langone Health, New York, New York
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239
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Jokela TA, LaBarge MA. Integration of mechanical and ECM microenvironment signals in the determination of cancer stem cell states. CURRENT STEM CELL REPORTS 2020; 7:39-47. [PMID: 33777660 DOI: 10.1007/s40778-020-00182-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Purpose of review Cancer stem cells (CSCs) are increasingly understood to play a central role in tumor progression. Growing evidence implicates tumor microenvironments as a source of signals that regulate or even impose CSC states on tumor cells. This review explores points of integration for microenvironment-derived signals that are thought to regulate CSCs in carcinomas. Recent findings CSC states are directly regulated by the mechanical properties and extra cellular matrix (ECM) composition of tumor microenvironments that promote CSC growth and survival, which may explain some modes of therapeutic resistance. CSCs sense mechanical forces and ECM composition through integrins and other cell surface receptors, which then activate a number of intracellular signaling pathways. The relevant signaling events are dynamic and context-dependent. Summary CSCs are thought to drive cancer metastases and therapeutic resistance. Cells that are in CSC states and more differentiated states appear to be reversible and conditional upon the components of the tumor microenvironment. Signals imposed by tumor microenvironment are of a combinatorial nature, ultimately representing the integration of multiple physical and chemical signals. Comprehensive understanding of the tumor microenvironment-imposed signaling that maintains cells in CSC states may guide future therapeutic interventions.
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Affiliation(s)
- Tiina A Jokela
- Department of Population Sciences, Beckman Research Institute, City of Hope, 1500 E. Duarte Rd, Duarte CA 91010
| | - Mark A LaBarge
- Department of Population Sciences, Beckman Research Institute, City of Hope, 1500 E. Duarte Rd, Duarte CA 91010
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240
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Failler M, Giro-Perafita A, Owa M, Srivastava S, Yun C, Kahler DJ, Unutmaz D, Esteva FJ, Sánchez I, Dynlacht BD. Whole-genome screen identifies diverse pathways that negatively regulate ciliogenesis. Mol Biol Cell 2020; 32:169-185. [PMID: 33206585 PMCID: PMC8120696 DOI: 10.1091/mbc.e20-02-0111] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
We performed a high-throughput whole-genome RNAi screen to identify novel inhibitors of ciliogenesis in normal and basal breast cancer cells. Our screen uncovered a previously undisclosed, extensive network of genes linking integrin signaling and cellular adhesion to the extracellular matrix (ECM) with inhibition of ciliation in both normal and cancer cells. Surprisingly, a cohort of genes encoding ECM proteins was also identified. We characterized several ciliation inhibitory genes and showed that their silencing was accompanied by altered cytoskeletal organization and induction of ciliation, which restricts cell growth and migration in normal and breast cancer cells. Conversely, supplying an integrin ligand, vitronectin, to the ECM rescued the enhanced ciliation observed on silencing this gene. Aberrant ciliation could also be suppressed through hyperactivation of the YAP/TAZ pathway, indicating a potential mechanistic basis for our findings. Our findings suggest an unanticipated reciprocal relationship between ciliation and cellular adhesion to the ECM and provide a resource that could vastly expand our understanding of controls involving “outside-in” and “inside-out” signaling that restrain cilium assembly.
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Affiliation(s)
- Marion Failler
- Department of Pathology and Perlmutter Cancer Center, New York University School of Medicine, New York, NY 10016
| | - Ariadna Giro-Perafita
- Department of Pathology and Perlmutter Cancer Center, New York University School of Medicine, New York, NY 10016
| | - Mikito Owa
- Department of Pathology and Perlmutter Cancer Center, New York University School of Medicine, New York, NY 10016
| | - Shalini Srivastava
- Department of Pathology and Perlmutter Cancer Center, New York University School of Medicine, New York, NY 10016
| | - Chi Yun
- Department of Pathology and Perlmutter Cancer Center, New York University School of Medicine, New York, NY 10016
| | - David J Kahler
- Department of Pathology and Perlmutter Cancer Center, New York University School of Medicine, New York, NY 10016
| | - Derya Unutmaz
- Jackson Laboratory for Genomic Medicine and University of Connecticut School of Medicine, Farmington, CT 06031
| | - Francisco J Esteva
- Department of Pathology and Perlmutter Cancer Center, New York University School of Medicine, New York, NY 10016
| | - Irma Sánchez
- Department of Pathology and Perlmutter Cancer Center, New York University School of Medicine, New York, NY 10016
| | - Brian D Dynlacht
- Department of Pathology and Perlmutter Cancer Center, New York University School of Medicine, New York, NY 10016
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241
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Vanyai HK, Prin F, Guillermin O, Marzook B, Boeing S, Howson A, Saunders RE, Snoeks T, Howell M, Mohun TJ, Thompson B. Control of skeletal morphogenesis by the Hippo-YAP/TAZ pathway. Development 2020; 147:dev187187. [PMID: 32994166 PMCID: PMC7673359 DOI: 10.1242/dev.187187] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 09/07/2020] [Indexed: 12/12/2022]
Abstract
The Hippo-YAP/TAZ pathway is an important regulator of tissue growth, but can also control cell fate or tissue morphogenesis. Here, we investigate the function of the Hippo pathway during the development of cartilage, which forms the majority of the skeleton. Previously, YAP was proposed to inhibit skeletal size by repressing chondrocyte proliferation and differentiation. We find that, in vitro, Yap/Taz double knockout impairs murine chondrocyte proliferation, whereas constitutively nuclear nls-YAP5SA accelerates proliferation, in line with the canonical role of this pathway in most tissues. However, in vivo, cartilage-specific knockout of Yap/Taz does not prevent chondrocyte proliferation, differentiation or skeletal growth, but rather results in various skeletal deformities including cleft palate. Cartilage-specific expression of nls-YAP5SA or knockout of Lats1/2 do not increase cartilage growth, but instead lead to catastrophic malformations resembling chondrodysplasia or achondrogenesis. Physiological YAP target genes in cartilage include Ctgf, Cyr61 and several matrix remodelling enzymes. Thus, YAP/TAZ activity controls chondrocyte proliferation in vitro, possibly reflecting a regenerative response, but is dispensable for chondrocyte proliferation in vivo, and instead functions to control cartilage morphogenesis via regulation of the extracellular matrix.
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Affiliation(s)
- Hannah K Vanyai
- The Francis Crick Institute, 1 Midland Rd, St Pancras, NW1 1AT London, UK
| | - Fabrice Prin
- The Francis Crick Institute, 1 Midland Rd, St Pancras, NW1 1AT London, UK
| | - Oriane Guillermin
- The Francis Crick Institute, 1 Midland Rd, St Pancras, NW1 1AT London, UK
| | - Bishara Marzook
- The Francis Crick Institute, 1 Midland Rd, St Pancras, NW1 1AT London, UK
| | - Stefan Boeing
- The Francis Crick Institute, 1 Midland Rd, St Pancras, NW1 1AT London, UK
| | - Alexander Howson
- The Francis Crick Institute, 1 Midland Rd, St Pancras, NW1 1AT London, UK
| | - Rebecca E Saunders
- The Francis Crick Institute, 1 Midland Rd, St Pancras, NW1 1AT London, UK
| | - Thomas Snoeks
- The Francis Crick Institute, 1 Midland Rd, St Pancras, NW1 1AT London, UK
| | - Michael Howell
- The Francis Crick Institute, 1 Midland Rd, St Pancras, NW1 1AT London, UK
| | - Timothy J Mohun
- The Francis Crick Institute, 1 Midland Rd, St Pancras, NW1 1AT London, UK
| | - Barry Thompson
- The Francis Crick Institute, 1 Midland Rd, St Pancras, NW1 1AT London, UK
- EMBL Australia, Department of Cancer Biology & Therapeutics, The John Curtin School of Medical Research, The Australian National University, 131 Garran Rd, Acton, 2601, Canberra, Australia
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242
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YAP-TEAD1 control of cytoskeleton dynamics and intracellular tension guides human pluripotent stem cell mesoderm specification. Cell Death Differ 2020; 28:1193-1207. [PMID: 33116297 PMCID: PMC8027678 DOI: 10.1038/s41418-020-00643-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 09/24/2020] [Accepted: 10/08/2020] [Indexed: 12/22/2022] Open
Abstract
The tight regulation of cytoskeleton dynamics is required for a number of cellular processes, including migration, division and differentiation. YAP–TEAD respond to cell–cell interaction and to substrate mechanics and, among their downstream effects, prompt focal adhesion (FA) gene transcription, thus contributing to FA-cytoskeleton stability. This activity is key to the definition of adult cell mechanical properties and function. Its regulation and role in pluripotent stem cells are poorly understood. Human PSCs display a sustained basal YAP-driven transcriptional activity despite they grow in very dense colonies, indicating these cells are insensitive to contact inhibition. PSC inability to perceive cell–cell interactions can be restored by tampering with Tankyrase enzyme, thus favouring AMOT inhibition of YAP function. YAP–TEAD complex is promptly inactivated when germ layers are specified, and this event is needed to adjust PSC mechanical properties in response to physiological substrate stiffness. By providing evidence that YAP–TEAD1 complex targets key genes encoding for proteins involved in cytoskeleton dynamics, we suggest that substrate mechanics can direct PSC specification by influencing cytoskeleton arrangement and intracellular tension. We propose an aberrant activation of YAP–TEAD1 axis alters PSC potency by inhibiting cytoskeleton dynamics, thus paralyzing the changes in shape requested for the acquisition of the given phenotype.
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243
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Lachowski D, Cortes E, Matellan C, Rice A, Lee DA, Thorpe SD, del Río Hernández AE. G Protein-Coupled Estrogen Receptor Regulates Actin Cytoskeleton Dynamics to Impair Cell Polarization. Front Cell Dev Biol 2020; 8:592628. [PMID: 33195261 PMCID: PMC7649801 DOI: 10.3389/fcell.2020.592628] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 09/24/2020] [Indexed: 12/30/2022] Open
Abstract
Mechanical forces regulate cell functions through multiple pathways. G protein-coupled estrogen receptor (GPER) is a seven-transmembrane receptor that is ubiquitously expressed across tissues and mediates the acute cellular response to estrogens. Here, we demonstrate an unidentified role of GPER as a cellular mechanoregulator. G protein-coupled estrogen receptor signaling controls the assembly of stress fibers, the dynamics of the associated focal adhesions, and cell polarization via RhoA GTPase (RhoA). G protein-coupled estrogen receptor activation inhibits F-actin polymerization and subsequently triggers a negative feedback that transcriptionally suppresses the expression of monomeric G-actin. Given the broad expression of GPER and the range of cytoskeletal changes modulated by this receptor, our findings position GPER as a key player in mechanotransduction.
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Affiliation(s)
- Dariusz Lachowski
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, United Kingdom
| | - Ernesto Cortes
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, United Kingdom
| | - Carlos Matellan
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, United Kingdom
| | - Alistair Rice
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, United Kingdom
| | - David A. Lee
- Institute of Bioengineering, School of Engineering and Material Science, Queen Mary University of London, London, United Kingdom
| | - Stephen D. Thorpe
- Institute of Bioengineering, School of Engineering and Material Science, Queen Mary University of London, London, United Kingdom
- UCD School of Medicine, UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
| | - Armando E. del Río Hernández
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, United Kingdom
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244
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Yang X, Wang G, Huang X, Cheng M, Han Y. RNA-seq reveals the diverse effects of substrate stiffness on epidermal ovarian cancer cells. Aging (Albany NY) 2020; 12:20493-20511. [PMID: 33091877 PMCID: PMC7655203 DOI: 10.18632/aging.103906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 07/21/2020] [Indexed: 12/27/2022]
Abstract
Background: Increasing evidence has confirmed that ovarian cancer is a mechanically responsive tumor both in vivo and in vitro. However, an understanding of the complete molecular mechanism involved in the response to substrate stiffness is lacking, as the associated transcriptome-wide effects have not been mapped. This limited understanding has restricted the identification of potential mechanically responsive targets in ovarian cancer. Results: To address these limitations, we used a polyacrylamide hydrogel system with a tunable Young’s modulus that broadly ranged from soft (1 kPa) to normal (6 kPa) and stiff (60 kPa) and investigated the effect of substrate rigidity on the morphology, spreading area, and cytoskeleton of SKOV-3 epidermal ovarian cancer (EOC) cells. RNA-seq analysis of these cells was then performed at appropriate timepoints to map the transcriptome-wide changes associated with stiffness sensing. We identified a large number of stiffness-sensing genes as well as many genes that were enriched in cancer-related pathways. Informed by these diverse expression results and based on bioinformatics analysis, we evaluated the hypothesis that PLEC and TNS2, which are located in focal adhesions and regulated by lnc-ZNF136, may play key roles in the EOC response to substrate stiffness. Conclusion: Overall, the results of the present study reveal previously unknown features of the EOC stiffness response and provide new insights into EOC metastasis in the clinic.
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Affiliation(s)
- Xiaoxu Yang
- School of Life Science and Technology, Weifang Medical University, Weifang 261053, Shandong, P.R. China
| | - Guohui Wang
- School of Life Science and Technology, Weifang Medical University, Weifang 261053, Shandong, P.R. China
| | - Xiaolei Huang
- School of Life Science and Technology, Weifang Medical University, Weifang 261053, Shandong, P.R. China
| | - Min Cheng
- Department of Physiology, Weifang Medical University, Weifang 261053, Shandong, P.R. China
| | - Yangyang Han
- School of Life Science and Technology, Weifang Medical University, Weifang 261053, Shandong, P.R. China
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245
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Xie W, Xiao W, Tang K, Zhang L, Li Y. Yes-Associated Protein 1: Role and Treatment Prospects in Orthopedic Degenerative Diseases. Front Cell Dev Biol 2020; 8:573455. [PMID: 33178690 PMCID: PMC7593614 DOI: 10.3389/fcell.2020.573455] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 09/25/2020] [Indexed: 01/11/2023] Open
Abstract
The Hippo/yes-associated protein 1 signaling pathway is an evolutionarily conserved signaling pathway. This signaling pathway is primarily involved in the regulation of stem cell self-renewal, organ size and tissue regeneration by regulating cell proliferation, differentiation and apoptosis. It plays an important role in embryonic development and tissue organ formation. Yes-associated protein 1 (YAP1) is a key transcription factor in the Hippo signaling pathway and is negatively regulated by this pathway. Changes in YAP1 expression levels affect the occurrence and development of a variety of tumors, but the specific mechanism associated with this phenomenon has not been thoroughly studied. Recently, several studies have described the role of YAP1 in osteoarthritis (OA). Indeed, YAP1 is involved in orthopedic degenerative diseases such as osteoporosis (OP) in addition to OA. In this review, we will summarize the significance of YAP1 in orthopedic degenerative diseases and discuss the potential of the targeted modulation of YAP1 for the treatment of these diseases.
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Affiliation(s)
- Wenqing Xie
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Wenfeng Xiao
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Kun Tang
- Discipline Construction Office, Xiangya Hospital, Central South University, Changsha, China
| | - Liyang Zhang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Yusheng Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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246
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Targeting Mechanotransduction in Osteosarcoma: A Comparative Oncology Perspective. Int J Mol Sci 2020; 21:ijms21207595. [PMID: 33066583 PMCID: PMC7589883 DOI: 10.3390/ijms21207595] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 10/09/2020] [Accepted: 10/12/2020] [Indexed: 12/13/2022] Open
Abstract
Mechanotransduction is the process in which cells can convert extracellular mechanical stimuli into biochemical changes within a cell. While this a normal process for physiological development and function in many organ systems, tumour cells can exploit this process to promote tumour progression. Here we summarise the current state of knowledge of mechanotransduction in osteosarcoma (OSA), the most common primary bone tumour, referencing both human and canine models and other similar mesenchymal malignancies (e.g., Ewing sarcoma). Specifically, we discuss the mechanical properties of OSA cells, the pathways that these cells utilise to respond to external mechanical cues, and mechanotransduction-targeting strategies tested in OSA so far. We point out gaps in the literature and propose avenues to address them. Understanding how the physical microenvironment influences cell signalling and behaviour will lead to the improved design of strategies to target the mechanical vulnerabilities of OSA cells.
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247
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Partners in crime: POPX2 phosphatase and its interacting proteins in cancer. Cell Death Dis 2020; 11:840. [PMID: 33037179 PMCID: PMC7547661 DOI: 10.1038/s41419-020-03061-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 09/24/2020] [Accepted: 09/28/2020] [Indexed: 02/06/2023]
Abstract
Protein phosphorylation and dephosphorylation govern intracellular signal transduction and cellular functions. Kinases and phosphatases are involved in the regulation and development of many diseases such as Alzheimer’s, diabetes, and cancer. While the functions and roles of many kinases, as well as their substrates, are well understood, phosphatases are comparatively less well studied. Recent studies have shown that rather than acting on fewer and more distinct substrates like the kinases, phosphatases can recognize specific phosphorylation sites on many different proteins, making the study of phosphatases and their substrates challenging. One approach to understand the biological functions of phosphatases is through understanding their protein–protein interaction network. POPX2 (Partner of PIX 2; also known as PPM1F or CaMKP) is a serine/threonine phosphatase that belongs to the PP2C family. It has been implicated in cancer cell motility and invasiveness. This review aims to summarize the different binding partners of POPX2 phosphatase and explore the various functions of POPX2 through its interactome in the cell. In particular, we focus on the impact of POPX2 on cancer progression. Acting via its different substrates and interacting proteins, POPX2’s involvement in metastasis is multifaceted and varied according to the stages of metastasis.
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248
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Kothapalli C, Mahajan G, Farrell K. Substrate stiffness induced mechanotransduction regulates temporal evolution of human fetal neural progenitor cell phenotype, differentiation, and biomechanics. Biomater Sci 2020; 8:5452-5464. [PMID: 32996962 PMCID: PMC8500671 DOI: 10.1039/d0bm01349h] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
While the mechanotransduction-induced fate of adult neural stem/progenitor cells (NPCs) is relatively known, how substrate stiffness regulates the temporal evolution of the biomechanics and phenotype of developmentally relevant human fetal NPCs (hNPCs) and their mechanosensing pathways remain unknown. Here, we primed hNPCs on tissue-culture plastic (TCPS) for 3 days in non-differentiating medium before transferring to TCPS or Geltrex™ gels (<1 kPa) for 9-day cultures post-priming, and regularly assessed stemness, differentiation, and cell mechanics (Young's modulus, tether forces, apparent membrane tension, tether radius). hNPCs maintained stemness on TCPS while those on gels co-expressed stemness and neural/glial markers, 3-days post-priming. Biomechanical characteristics remained unchanged in cells on TCPS but were significantly altered in those on gels, 3-days post-priming. However, 9-days post-priming, hNPCs on gels differentiated, with significantly more neurons on softer gels and glia on stiffer gels, while those on TCPS maintained their native stemness. Withdrawal of bFGF and EGF in 9-day cultures induced hNPC differentiation and influenced cell mechanics. Cells on stiffer gels had higher biomechanical properties than those on softer gels throughout the culture period, with NPC-like > neural > glia subtypes. Higher stress fiber density in cells on stiffer gels explains their significantly different biomechanical properties on these gels. Blebbistatin treatment caused cell polarization, lowered elastic modulus, and enhanced tether forces, implicating the role of non-muscle myosin-II in hNPC mechanosensing, adaptability, and thereby mechanics. Such substrate-mediated temporal evolution of hNPCs guide design of smart scaffolds to investigate morphogenesis, disease modeling, stem cell biology, and biomaterials for tissue engineering.
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Affiliation(s)
- Chandrasekhar Kothapalli
- Department of Chemical and Biomedical Engineering, Cleveland State University, Cleveland, OH 44115, USA.
| | - Gautam Mahajan
- Department of Chemical and Biomedical Engineering, Cleveland State University, Cleveland, OH 44115, USA.
| | - Kurt Farrell
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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249
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RNA binding proteins: Linking mechanotransduction and tumor metastasis. Cancer Lett 2020; 496:30-40. [PMID: 33007411 DOI: 10.1016/j.canlet.2020.09.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/17/2020] [Accepted: 09/19/2020] [Indexed: 02/07/2023]
Abstract
Mechanotransduction is the leading cellular process that mammalian cells adopted to receive and respond to various mechanical cues from their local microenvironment. Increasing evidence suggests that mechano-transduction is involved in many physiological and disease conditions, ranging from early embryonic development, organogenesis, to a variety of human diseases including cancer. Mechanotransduction is mediated through several classes of senor proteins on the cell surface, intracellular signaling mediators, and core transcriptional regulation networks. Dissecting the molecular mechanisms regulating mechanotransduction and their association with cancer metastasis has received much attention in recent years. RNA binding proteins (RBPs) are a special group of nucleic acid interacting factors that participate in many important cellular processes. In this review, we would like to summarize recent research progresses in understanding the role of RBPs-mediated regulation in mechanotransduction and cancer metastasis. Those intriguing findings will provide novel insights for the disease and guide the potential development of new therapeutic approaches.
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250
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Dunham C, Havlioglu N, Chamberlain A, Lake S, Meyer G. Adipose stem cells exhibit mechanical memory and reduce fibrotic contracture in a rat elbow injury model. FASEB J 2020; 34:12976-12990. [PMID: 33411380 PMCID: PMC8745456 DOI: 10.1096/fj.202001274r] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/14/2020] [Accepted: 07/22/2020] [Indexed: 02/06/2023]
Abstract
Fibrosis is driven by a misdirected cell response causing the overproduction of extracellular matrix and tissue dysfunction. Numerous pharmacological strategies have attempted to prevent fibrosis but have attained limited efficacy with some detrimental side effects. While stem cell treatments have provided more encouraging results, they have exhibited high variability and have not always improved tissue function. To enhance stem cell efficacy, we evaluated whether mechanical memory could direct cell response. We hypothesized that mechanically pre-conditioning on a soft matrix (soft priming) will delay adipose-derived stem cell (ASC) transition to a pro-fibrotic phenotype, expanding their regenerative potential, and improving healing in a complex tissue environment. Primary ASCs isolated from rat and human subcutaneous fat exhibited mechanical memory, demonstrated by a delayed cell response to stiffness following two weeks of soft priming including decreased cell area, actin coherency, and extracellular matrix production compared to cells on stiff substrates. Soft primed ASCs injected into our rat model of post-traumatic elbow contracture decreased histological evidence of anterior capsule fibrosis and increased elbow range-of-motion when evaluated by joint mechanics. These findings suggest that exploiting mechanical memory by strategically controlling the culture environment during cell expansion may improve the efficacy of stem cell-based therapies targeting fibrosis.
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Affiliation(s)
- Chelsey Dunham
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Necat Havlioglu
- Department of Pathology, John Cochran VA Medical Center, St. Louis, MO, USA
| | - Aaron Chamberlain
- Department of Orthopaedic Surgery, Washington University in St. Louis, St. Louis, MO, USA
| | - Spencer Lake
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA
- Department of Orthopaedic Surgery, Washington University in St. Louis, St. Louis, MO, USA
- Department of Mechanical Engineering & Materials Science, Washington University in St. Louis, MO, USA
- Center of Regenerative Medicine, Washington University in St. Louis, St. Louis, MO
| | - Gretchen Meyer
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA
- Department of Orthopaedic Surgery, Washington University in St. Louis, St. Louis, MO, USA
- Center of Regenerative Medicine, Washington University in St. Louis, St. Louis, MO
- Program in Physical Therapy, Washington University in St. Louis, St. Louis, MO
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