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Zhou Y, Xu Y, Zhang R, Wang H, Wang F, Wang Z, Zhang C, Zhang Z, Mei J, Tao S. Hyaluronic Acid-Dopamine-NCSN Hydrogel Combined With Extracellular Matrix Promotes Wound Healing. Macromol Biosci 2024; 24:e2300549. [PMID: 38514930 DOI: 10.1002/mabi.202300549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 03/17/2024] [Indexed: 03/23/2024]
Abstract
The skin barrier is essential to prevent pathogenic invasion. When injury occurs, multiple biological pathways are promptly activated and wound repair processes are triggered. The effective healing of wounds is essential for survival, and dysfunction could result from aberrant wound repair. Preparation of many hydrogels, which involve the addition of growth/cell factors or mimic extracellular matrix (ECM) components, has not resulted in significant advances in tissue recovery. ECM contains a large number of biologically active molecules that activate a variety of cellular transduction pathways, which are essential for wound repair. Here, this work prepares hyaluronic acid-dopamine-thiourea (HA-DA-NCSN) hydrogels exhibiting ultrafast gelation in situ, following the methods of Xu et al., and subsequently designs a hydrogel containing ECM particles. In addition, the loaded ECM material, specifically decellularized ECM material, not only enhances the strength of the hydrogel network, but also delivers bioactive substances that make it a suitable platform for skin wound repair. The ECM hydrogel has great potential as an efficient bioactive wound dressing. This research suggests that this strategy is likely to improve skin wound closure in rat skin wound models.
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Affiliation(s)
- Yingjie Zhou
- Institute of Biomaterials, The First Affiliated Hospital of Ningbo University, No.59 Liuting Street, Haishu District, Ningbo, 315010, China
| | - Yongbiao Xu
- Department of Public Health, Wuhan eighth hospital, 1307 Zhongshan Avenue, Jiangan District, Wuhan, 430010, China
| | - Rui Zhang
- Institute of Biomaterials, The First Affiliated Hospital of Ningbo University, No.59 Liuting Street, Haishu District, Ningbo, 315010, China
| | - Haiyang Wang
- Institute of Bioscaffold Transplantation and Immunology, Wenzhou Medical University, North Center Road, Ouhai District, Wenzhou, 325035, China
| | - Fangfang Wang
- Institute of Biomaterials, The First Affiliated Hospital of Ningbo University, No.59 Liuting Street, Haishu District, Ningbo, 315010, China
| | - Zonghuan Wang
- Institute of Biomaterials, The First Affiliated Hospital of Ningbo University, No.59 Liuting Street, Haishu District, Ningbo, 315010, China
| | - Chi Zhang
- Institute of Biomaterials, The First Affiliated Hospital of Ningbo University, No.59 Liuting Street, Haishu District, Ningbo, 315010, China
| | - Zhihan Zhang
- Department of Orthopaedic Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Jin Mei
- Institute of Biomaterials, The First Affiliated Hospital of Ningbo University, No.59 Liuting Street, Haishu District, Ningbo, 315010, China
- Institute of Bioscaffold Transplantation and Immunology, Wenzhou Medical University, North Center Road, Ouhai District, Wenzhou, 325035, China
| | - Shengxiang Tao
- Department of Orthopaedic Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
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2
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Miskin RP, DiPersio CM. Roles for epithelial integrin α3β1 in regulation of the microenvironment during normal and pathological tissue remodeling. Am J Physiol Cell Physiol 2024; 326:C1308-C1319. [PMID: 38497112 DOI: 10.1152/ajpcell.00128.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/08/2024] [Accepted: 03/08/2024] [Indexed: 03/19/2024]
Abstract
Integrin receptors for the extracellular matrix activate intracellular signaling pathways that are critical for tissue development, homeostasis, and regeneration/repair, and their loss or dysregulation contributes to many developmental defects and tissue pathologies. This review will focus on tissue remodeling roles for integrin α3β1, a receptor for laminins found in the basement membranes (BMs) that underlie epithelial cell layers. As a paradigm, we will discuss literature that supports a role for α3β1 in promoting ability of epidermal keratinocytes to modify their tissue microenvironment during skin development, wound healing, or tumorigenesis. Preclinical and clinical studies have shown that this role depends largely on ability of α3β1 to govern the keratinocyte's repertoire of secreted proteins, or the "secretome," including 1) matrix proteins and proteases involved in matrix remodeling and 2) paracrine-acting growth factors/cytokines that stimulate other cells with important tissue remodeling functions (e.g., endothelial cells, fibroblasts, inflammatory cells). Moreover, α3β1 signaling controls gene expression that helps epithelial cells carry out these functions, including genes that encode secreted matrix proteins, proteases, growth factors, or cytokines. We will review what is known about α3β1-dependent gene regulation through both transcription and posttranscriptional mRNA stability. Regarding the latter, we will discuss examples of α3β1-dependent alternative splicing (AS) or alternative polyadenylation (APA) that prevents inclusion of cis-acting mRNA sequences that would otherwise target the transcript for degradation via nonsense-mediated decay or destabilizing AU-rich elements (AREs) in the 3'-untranslated region (3'-UTR). Finally, we will discuss prospects and anticipated challenges of exploiting α3β1 as a clinical target for the treatment of cancer or wound healing.
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Affiliation(s)
| | - C Michael DiPersio
- Department of Surgery, Albany Medical College, Albany, New York, United States
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York, United States
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3
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Aslan E, Maytalman E, Nemutlu Samur D, Köle E, Günizi ÖC. An in vitro pilot study investigating placenta-derived mesenchymal stem cell coating on polypropylene mesh materials. Int Urogynecol J 2024; 35:553-559. [PMID: 38206335 DOI: 10.1007/s00192-023-05687-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 10/31/2023] [Indexed: 01/12/2024]
Abstract
INTRODUCTION AND HYPOTHESIS Polypropylene meshes (PM) used in pelvic organ prolapse surgery are being withdrawn from the market. Although concerns about the usage of PMs in stress incontinence surgery have been raised, it is still one of the best methods of curing stress urinary incontinence. With advancements in stem cell-based therapies, especially mesenchymal stem cells (MSCs), it is believed that coating the synthetic meshes with MSCs may minimize excessive tissue reactions ultimately leading to clinical problems such as pain, erosion or extrusion of the implanted material. In our study we tried to show the possibility of coating the PM with placenta-derived MSCs. METHODS Mesenchymal stem cells obtained from six placentas were isolated, cultured, and identified. MSCs were then soaked in either fibronectin or collagen prior to co-culturing with strips of PMs. One group is used as a control, and hence was not pretreated before co-culturing. Specimens were fixed and stained with both Gram and hematoxylin and eosin and marked with Vybran Dil and DAPI. All preparations were examined under a light microscope. The IMAGEJ program was utilized to determine the surface area of meshes coated with MSCs. RESULTS We clearly showed that PMs can be coated successfully with placenta-derived MSCs. The percentage of the coated area is significantly increased when meshes were pretreated with fibronectin or collagen (p<0.0001). CONCLUSIONS Placenta-derived MSCs can successfully coat PMs. The immunomodulatory properties of MSCs, which may be of great advantage in preventing the side effects of meshes, should be tested by in vivo and hopefully human studies before clinical applications.
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Affiliation(s)
- Erdogan Aslan
- Faculty of Medicine, Department of Obstetrics and Gynecology, Alanya Alaaddin Keykubat University, Payallar Mh. Atatürk Cd. Yasemin Villaları, No:111/L-4, Alanya, Antalya, Türkiye.
| | - Erkan Maytalman
- Faculty of Medicine, Department of Pharmacology, Alanya Alaaddin Keykubat University, Alanya, Antalya, Türkiye
| | - Dilara Nemutlu Samur
- Faculty of Medicine, Department of Pharmacology, Alanya Alaaddin Keykubat University, Alanya, Antalya, Türkiye
| | - Emre Köle
- Faculty of Medicine, Department of Obstetrics and Gynecology, Alanya Alaaddin Keykubat University, Payallar Mh. Atatürk Cd. Yasemin Villaları, No:111/L-4, Alanya, Antalya, Türkiye
| | - Özlem Ceren Günizi
- Faculty of Medicine, Department of Pharmacology, Alanya Alaaddin Keykubat University, Alanya, Antalya, Türkiye
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4
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Dotts AJ, Reiman D, Yin P, Kujawa S, Grobman WA, Dai Y, Bulun SE. In Vivo Genome-Wide PGR Binding in Pregnant Human Myometrium Identifies Potential Regulators of Labor. Reprod Sci 2023; 30:544-559. [PMID: 35732928 PMCID: PMC9988762 DOI: 10.1007/s43032-022-01002-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 06/03/2022] [Indexed: 12/22/2022]
Abstract
The alterations in myometrial biology during labor are not well understood. The myometrium is the contractile portion of the uterus and contributes to labor, a process that may be regulated by the steroid hormone progesterone. Thus, human myometrial tissues from term pregnant in-active-labor (TIL) and term pregnant not-in-labor (TNIL) subjects were used for genome-wide analyses to elucidate potential future preventive or therapeutic targets involved in the regulation of labor. Using myometrial tissues directly subjected to RNA sequencing (RNA-seq), progesterone receptor (PGR) chromatin immunoprecipitation sequencing (ChIP-seq), and histone modification ChIP-seq, we profiled genome-wide changes associated with gene expression in myometrial smooth muscle tissue in vivo. In TIL myometrium, PGR predominantly occupied promoter regions, including the classical progesterone response element, whereas it bound mainly to intergenic regions in TNIL myometrial tissue. Differential binding analysis uncovered over 1700 differential PGR-bound sites between TIL and TNIL, with 1361 sites gained and 428 lost in labor. Functional analysis identified multiple pathways involved in cAMP-mediated signaling enriched in labor. A three-way integration of the data for ChIP-seq, RNA-seq, and active histone marks uncovered the following genes associated with PGR binding, transcriptional activation, and altered mRNA levels: ATP11A, CBX7, and TNS1. In vitro studies showed that ATP11A, CBX7, and TNS1 are progesterone responsive. We speculate that these genes may contribute to the contractile phenotype of the myometrium during various stages of labor. In conclusion, we provide novel labor-associated genome-wide events and PGR-target genes that can serve as targets for future mechanistic studies.
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Affiliation(s)
- Ariel J Dotts
- Department of Obstetrics & Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Derek Reiman
- Department of Bioengineering, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Ping Yin
- Department of Obstetrics & Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Stacy Kujawa
- Department of Obstetrics & Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - William A Grobman
- Department of Obstetrics & Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Yang Dai
- Department of Bioengineering, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Serdar E Bulun
- Department of Obstetrics & Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA.
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5
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Xiao Y, Donnelly H, Sprott M, Luo J, Jayawarna V, Lemgruber L, Tsimbouri PM, Meek RD, Salmeron-Sanchez M, Dalby MJ. Material-driven fibronectin and vitronectin assembly enhances BMP-2 presentation and osteogenesis. Mater Today Bio 2022; 16:100367. [PMID: 35937570 PMCID: PMC9352550 DOI: 10.1016/j.mtbio.2022.100367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/11/2022] [Accepted: 07/13/2022] [Indexed: 11/26/2022] Open
Abstract
Mesenchymal stem cell (MSC)-based tissue engineering strategies are of interest in the field of bone tissue regenerative medicine. MSCs are commonly investigated in combination with growth factors (GFs) and biomaterials to provide a regenerative environment for the cells. However, optimizing how biomaterials interact with MSCs and efficiently deliver GFs, remains a challenge. Here, via plasma polymerization, tissue culture plates are coated with a layer of poly (ethyl acrylate) (PEA), which is able to spontaneously permit fibronectin (FN) to form fibrillar nanonetworks. However, vitronectin (VN), another important extracellular matrix (ECM) protein forms multimeric globules on the polymer, thus not displaying functional groups to cells. Interestingly, when FN and VN are co-absorbed onto PEA surfaces, VN can be entrapped within the FN fibrillar nanonetwork in the monomeric form providing a heterogeneous, open ECM network. The combination of FN and VN promote MSC adhesion and leads to enhanced GF binding; here we demonstrate this with bone morphogenetic protein-2 (BMP2). Moreover, MSC differentiation into osteoblasts is enhanced, with elevated expression of osteopontin (OPN) and osteocalcin (OCN) quantified by immunostaining, and increased mineralization observed by von Kossa staining. Osteogenic intracellular signalling is also induced, with increased activity in the SMAD pathway. The study emphasizes the need of recapitulating the complexity of native ECM to achieve optimal cell-material interactions. Vitronectin can be incorporated within fibronectin fibril networks upon co-coating onto poly (ethyl acrylate) modified surfaces. Fibronectin and vitronectin networks promote mesenchymal stem cell adhesion and induce α5 integrin clustering. Fibronectin and vitronectin nanonetworks improve bone morphogenetic protein-2 presentation to mesenchymal stem cells and thus facilitates osteogenesis.
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Barboura M, Cornebise C, Hermetet F, Guerrache A, Selmi M, Salek A, Chekir-Ghedira L, Aires V, Delmas D. Tannic Acid, A Hydrolysable Tannin, Prevents Transforming Growth Factor-β-Induced Epithelial-Mesenchymal Transition to Counteract Colorectal Tumor Growth. Cells 2022; 11:cells11223645. [PMID: 36429073 PMCID: PMC9688195 DOI: 10.3390/cells11223645] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/10/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022] Open
Abstract
Despite the medico-surgical progress that has been made in the management of patients with colorectal cancer (CRC), the prognosis at five years remains poor. This resistance of cancer cells partly results from their phenotypic characteristics in connection with the epithelial-mesenchymal transition (EMT). In the present study, we have explored the ability of a polyphenol, tannic acid (TA), to counteract CRC cell proliferation and invasion through an action on the EMT. We highlight that TA decreases human SW480 and SW620 CRC cell and murine CT26 CRC cell viability, and TA inhibits their adhesion in the presence of important factors comprising the extracellular matrix, particularly in the presence of collagen type I and IV, and fibronectin. Moreover, these properties were associated with TA's ability to disrupt CRC cell migration and invasion, which are induced by transforming growth factor-β (TGF-β), as evidence in the video microscopy experiments showing that TA blocks the TGF-β1-induced migration of SW480 and CT26 cells. At the molecular level, TA promotes a reversal of the epithelial-mesenchymal transition by repressing the mesenchymal markers (i.e., Slug, Snail, ZEB1, and N-cadherin) and re-expressing the epithelial markers (i.e., E-cadherin and β-catenin). These effects could result from a disruption of the non-canonical signaling pathway that is induced by TGF-β1, where TA strongly decreases the phosphorylation of extracellular-signal regulated kinase ERK1/2, P38 and the AKT proteins that are well known to contribute to the EMT, the cell motility, and the acquisition of invasive properties by tumor cells. Very interestingly, a preclinical study of mice with subcutaneous murine tumor colon CT26 cells has shown that TA was able to significantly delay the growth of tumors without hepato- and nephrotoxicities.
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Affiliation(s)
- Mahassen Barboura
- UFR des Sciences de Santé, Université de Bourgogne, 21000 Dijon, France
- INSERM Research Center U1231—Cancer and Adaptive Immune Response Team, Bioactive Molecules and Health Research Group, 21000 Dijon, France
- Research Unit Bioactive Natural Products and Biotechnology UR17ES49, Faculty of Dental Medicine of Monastir, University of Monastir, Avicenne street, Monastir 5000, Tunisia
| | - Clarisse Cornebise
- UFR des Sciences de Santé, Université de Bourgogne, 21000 Dijon, France
- INSERM Research Center U1231—Cancer and Adaptive Immune Response Team, Bioactive Molecules and Health Research Group, 21000 Dijon, France
| | - François Hermetet
- UFR des Sciences de Santé, Université de Bourgogne, 21000 Dijon, France
- INSERM Research Center U1231—Cancer and Adaptive Immune Response Team, Bioactive Molecules and Health Research Group, 21000 Dijon, France
| | - Abderrahmane Guerrache
- UFR des Sciences de Santé, Université de Bourgogne, 21000 Dijon, France
- INSERM Research Center U1231—DesCartes Team, 21000 Dijon, France
| | - Mouna Selmi
- Research Unit Bioactive Natural Products and Biotechnology UR17ES49, Faculty of Dental Medicine of Monastir, University of Monastir, Avicenne street, Monastir 5000, Tunisia
| | - Abir Salek
- Research Unit Bioactive Natural Products and Biotechnology UR17ES49, Faculty of Dental Medicine of Monastir, University of Monastir, Avicenne street, Monastir 5000, Tunisia
| | - Leila Chekir-Ghedira
- Research Unit Bioactive Natural Products and Biotechnology UR17ES49, Faculty of Dental Medicine of Monastir, University of Monastir, Avicenne street, Monastir 5000, Tunisia
| | - Virginie Aires
- UFR des Sciences de Santé, Université de Bourgogne, 21000 Dijon, France
- INSERM Research Center U1231—Cancer and Adaptive Immune Response Team, Bioactive Molecules and Health Research Group, 21000 Dijon, France
| | - Dominique Delmas
- UFR des Sciences de Santé, Université de Bourgogne, 21000 Dijon, France
- INSERM Research Center U1231—Cancer and Adaptive Immune Response Team, Bioactive Molecules and Health Research Group, 21000 Dijon, France
- Centre Anticancéreux Georges François Leclerc Center, 21000 Dijon, France
- Correspondence: ; Tel.: +33-380-39-32-26
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7
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Wang L, Zhou S, Liu G, Lyu T, Shi L, Dong Y, He S, Zhang H. The Mechanisms of Fur Development and Color Formation in American Mink Revealed Using Comparative Transcriptomics. Animals (Basel) 2022; 12:ani12223088. [PMID: 36428316 PMCID: PMC9686883 DOI: 10.3390/ani12223088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 10/31/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022] Open
Abstract
American mink fur is an important economic product, but the molecular mechanisms underlying its color formation and fur development remain unclear. We used RNA-seq to analyze the skin transcriptomes of young and adult mink with two different hair colors. The mink comprised black adults (AB), white adults (AW), black juveniles (TB), and white juveniles (TW) (three each). Through pair comparison and cross-screening among different subgroups, we found that 13 KRTAP genes and five signaling pathways (the JAK-STAT signaling pathway (cfa04630), signaling pathways regulating pluripotency of stem cells (cfa04550), ECM-receptor interaction (cfa04512), focal adhesion (cfa04510), and the Ras signaling pathway (cfa04014)) were related to mink fur development. We also found that members of a tyrosinase family (TYR, TYRP1, and TYRP2) are involved in mink hair color formation. The expression levels of TYR were higher in young black mink than in young white mink, but this phenomenon was not observed in adult mink. Our study found significant differences in adult and juvenile mink skin transcriptomes, which may shed light on the mechanisms of mink fur development. At the same time, the skin transcriptomes of black and white mink also showed differences, with the results varying by age, suggesting that the genes regulating hair color are active in early development rather than in adulthood. The results of this study provide molecular support in breeding for mink coat color and improving fur quality.
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Affiliation(s)
- Lidong Wang
- College of Life Sciences, Qufu Normal University, Qufu 273165, China
| | - Shengyang Zhou
- College of Life Sciences, Qufu Normal University, Qufu 273165, China
| | - Guangshuai Liu
- College of Life Sciences, Qufu Normal University, Qufu 273165, China
| | - Tianshu Lyu
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China
| | - Lupeng Shi
- College of Life Sciences, Qufu Normal University, Qufu 273165, China
| | - Yuehuan Dong
- College of Life Sciences, Qufu Normal University, Qufu 273165, China
| | - Shangbin He
- College of Life Sciences, Qufu Normal University, Qufu 273165, China
| | - Honghai Zhang
- College of Life Sciences, Qufu Normal University, Qufu 273165, China
- Correspondence:
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Guevara-Garcia A, Fourel L, Bourrin-Reynard I, Sales A, Oddou C, Pezet M, Rossier O, Machillot P, Chaar L, Bouin AP, Giannone G, Destaing O, Picart C, Albiges-Rizo C. Integrin-based adhesion compartmentalizes ALK3 of the BMPRII to control cell adhesion and migration. J Biophys Biochem Cytol 2022; 221:213529. [PMID: 36205720 PMCID: PMC9552562 DOI: 10.1083/jcb.202107110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 07/25/2022] [Accepted: 09/19/2022] [Indexed: 02/02/2023] Open
Abstract
The spatial organization of cell-surface receptors is fundamental for the coordination of biological responses to physical and biochemical cues of the extracellular matrix. How serine/threonine kinase receptors, ALK3-BMPRII, cooperate with integrins upon BMP2 to drive cell migration is unknown. Whether the dynamics between integrins and BMP receptors intertwine in space and time to guide adhesive processes is yet to be elucidated. We found that BMP2 stimulation controls the spatial organization of BMPRs by segregating ALK3 from BMPRII into β3 integrin-containing focal adhesions. The selective recruitment of ALK3 to focal adhesions requires β3 integrin engagement and ALK3 activation. BMP2 controls the partitioning of immobilized ALK3 within and outside focal adhesions according to single-protein tracking and super-resolution imaging. The spatial control of ALK3 in focal adhesions by optogenetics indicates that ALK3 acts as an adhesive receptor by eliciting cell spreading required for cell migration. ALK3 segregation from BMPRII in integrin-based adhesions is a key aspect of the spatio-temporal control of BMPR signaling.
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Affiliation(s)
- Amaris Guevara-Garcia
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale U1209, Centre National de La Recherche Scientifique 5309, Université Grenoble Alpes, Grenoble, France,Commissariat à l’Energie Atomique, Institut National de la Santé et de la Recherche Médicale U1292, Centre National de La Recherche Scientifique Equipe Mixte de Recherche Biomimetism and Regenerative Medicine 5000, Université Grenoble Alpes, Grenoble, France,Centre National de La Recherche Scientifique, Grenoble Institute of Technology, Laboratoire des Matériaux et du Génie Physique, Unité Mixte de Recherche 5628, Grenoble, France
| | - Laure Fourel
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale U1209, Centre National de La Recherche Scientifique 5309, Université Grenoble Alpes, Grenoble, France
| | - Ingrid Bourrin-Reynard
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale U1209, Centre National de La Recherche Scientifique 5309, Université Grenoble Alpes, Grenoble, France
| | - Adria Sales
- Commissariat à l’Energie Atomique, Institut National de la Santé et de la Recherche Médicale U1292, Centre National de La Recherche Scientifique Equipe Mixte de Recherche Biomimetism and Regenerative Medicine 5000, Université Grenoble Alpes, Grenoble, France,Centre National de La Recherche Scientifique, Grenoble Institute of Technology, Laboratoire des Matériaux et du Génie Physique, Unité Mixte de Recherche 5628, Grenoble, France
| | - Christiane Oddou
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale U1209, Centre National de La Recherche Scientifique 5309, Université Grenoble Alpes, Grenoble, France
| | - Mylène Pezet
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale U1209, Centre National de La Recherche Scientifique 5309, Université Grenoble Alpes, Grenoble, France
| | - Olivier Rossier
- Centre National de La Recherche Scientifique, Interdisciplinary Institute for Neuroscience, Interdisciplinary Institute for Neurosciences, Unité Mixte de Recherche 5297, Université Bordeaux, Bordeaux, France
| | - Paul Machillot
- Commissariat à l’Energie Atomique, Institut National de la Santé et de la Recherche Médicale U1292, Centre National de La Recherche Scientifique Equipe Mixte de Recherche Biomimetism and Regenerative Medicine 5000, Université Grenoble Alpes, Grenoble, France,Centre National de La Recherche Scientifique, Grenoble Institute of Technology, Laboratoire des Matériaux et du Génie Physique, Unité Mixte de Recherche 5628, Grenoble, France
| | - Line Chaar
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale U1209, Centre National de La Recherche Scientifique 5309, Université Grenoble Alpes, Grenoble, France
| | - Anne-Pascale Bouin
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale U1209, Centre National de La Recherche Scientifique 5309, Université Grenoble Alpes, Grenoble, France
| | - Gregory Giannone
- Centre National de La Recherche Scientifique, Interdisciplinary Institute for Neuroscience, Interdisciplinary Institute for Neurosciences, Unité Mixte de Recherche 5297, Université Bordeaux, Bordeaux, France
| | - Olivier Destaing
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale U1209, Centre National de La Recherche Scientifique 5309, Université Grenoble Alpes, Grenoble, France
| | - Catherine Picart
- Commissariat à l’Energie Atomique, Institut National de la Santé et de la Recherche Médicale U1292, Centre National de La Recherche Scientifique Equipe Mixte de Recherche Biomimetism and Regenerative Medicine 5000, Université Grenoble Alpes, Grenoble, France,Centre National de La Recherche Scientifique, Grenoble Institute of Technology, Laboratoire des Matériaux et du Génie Physique, Unité Mixte de Recherche 5628, Grenoble, France
| | - Corinne Albiges-Rizo
- Institute for Advanced Biosciences, Institut National de la Santé et de la Recherche Médicale U1209, Centre National de La Recherche Scientifique 5309, Université Grenoble Alpes, Grenoble, France,Correspondence to Corinne Albiges-Rizo:
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9
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Legrand JMD, Martino MM. Growth Factor and Cytokine Delivery Systems for Wound Healing. Cold Spring Harb Perspect Biol 2022; 14:a041234. [PMID: 35667794 PMCID: PMC9341469 DOI: 10.1101/cshperspect.a041234] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Skin wound healing is a highly coordinated process involving multiple tissue-resident and recruited cell types. Cells within the wound microenvironment respond to key secreted factors such as pro-proliferative growth factors and immunomodulatory cytokines to repair the skin and promptly restore its essential barrier role. Therefore, recombinant growth factors and cytokines are promising therapeutics for skin wounds, in particular for large acute wounds such as burns, or wounds associated with underlying pathologies such as nonhealing chronic and diabetic wounds. However, translation of growth factors and cytokines into clinically effective treatments has been limited. Short half-life, poor stability, rapid diffusion, uncontrolled signaling, and systemic side effects are currently the key challenges to developing efficient growth factor- and cytokine-based therapies. To overcome these limitations, novel delivery systems have been developed to improve the regenerative potential of recombinant growth factors and cytokines. In this review, we discuss biomaterial and protein engineering strategies used to optimize the delivery of growth factor and cytokine therapeutics for skin wound treatment.
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Affiliation(s)
- Julien M D Legrand
- European Molecular Biology Laboratory Australia, Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Mikaël M Martino
- European Molecular Biology Laboratory Australia, Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria 3800, Australia
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10
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Horrocks MS, Kollmetz T, O'Reilly P, Nowak D, Malmström J. Quantitative analysis of biomolecule release from polystyrene- block-polyethylene oxide thin films. SOFT MATTER 2022; 18:4513-4526. [PMID: 35674502 DOI: 10.1039/d2sm00383j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Block copolymers have garnered recent attention due to their ability to contain molecular cargo within nanoscale domains and release said cargo in aqueous environments. However, the release kinetics of cargo from these thin-films has not yet been reported. Knowledge of the release quantities and release profiles of these systems is paramount for applications of these systems. Here, Polystyrene-block-poly(ethylene oxide) (PS-b-PEO) was co-assembled with fluorescein isothiocyanate isomer I-lysozyme (FITC-LZ) and fluorescein isothiocyanate isomer I-TAT (FITC-TAT), such that these molecular cargos arrange within the PEO domains of the thin films. We show that high loading ratios of cargo/PS-b-PEO do not significantly impact the nanostructure of the films; however, a loading limit appears to be present with aggregates of protein forming at the microscale with higher loading ratios. The presence of lysozyme (LZ) within the films was confirmed qualitatively after aqueous exposure through photo-induced force microscopy (PiFM) imaging at the Amide I characteristic peak (∼1650 cm-1). Furthermore, we demonstrate that LZ maintains activity and structure after exposure to the polymer solvent (benzene/methanol/water mix). Finally, we demonstrate quantitatively 20-80 ng cm-2 of cargo is released from these films, depending on the cargo incorporated. We show that the larger molecule lysozyme is released over a longer time than the smaller TAT peptide. Finally, we demonstrate the ability to tune the quantity of cargo released by altering the thickness of the PS-b-PEO thin-films during fabrication.
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Affiliation(s)
- Matthew S Horrocks
- Chemical and Materials Engineering, The University of Auckland, New Zealand.
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, New Zealand
| | - Tarek Kollmetz
- Chemical and Materials Engineering, The University of Auckland, New Zealand.
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, New Zealand
| | | | | | - Jenny Malmström
- Chemical and Materials Engineering, The University of Auckland, New Zealand.
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, New Zealand
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11
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Wang X, Xu X, Zhang Y, An X, Zhang X, Chen G, Jiang Q, Yang J. Duo Cadherin-Functionalized Microparticles Synergistically Induce Chondrogenesis and Cartilage Repair of Stem Cell Aggregates. Adv Healthc Mater 2022; 11:e2200246. [PMID: 35485302 DOI: 10.1002/adhm.202200246] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/07/2022] [Indexed: 11/10/2022]
Abstract
Mesenchymal stem cell (MSC) aggregates incorporated with microparticles of functional materials have shown promising prospects in the field of cell therapy for cartilage repair. Given the importance of cadherins in modulating the stemness and chondrogenesis of MSCs, the use of transforming growth factor β1 (TGFβ1)-loaded poly (lactic-co-glycolic acid) (PLGA)-based composite microparticles inspired by duo cadherin (human E- and N-cadherin fusion proteins) to construct a bioartificial stem cell niche in engineered human MSC (hMSC) aggregates to promote chondrogenesis and cartilage regeneration is proposed. The hE/N-cadherin-functionalized PLGA/chitosan-heparin-TGFβ1 (Duo hE/N-cad@P/C-h-TGFβ1) microparticles spatiotemporally upregulates the endogenous E/N-cadherin expression of hMSC aggregates which further amplifies the chondrogenic differentiation and modulate paracrine and anti-inflammatory functions of hMSCs toward constructing a favorable microenvironment for chondrogenesis. The Duo hE/N-cad@P/C-h-TGFβ1 microparticles finely regulate the response of hMSCs to biochemical and mechanical signal stimuli in the microenvironment through the cadherin/catenin-Yes-associated protein signal transduction, which inhibits the hypertrophy of hMSC-derived chondrocytes. Furthermore, immunofluorescent and histological examinations show that the Duo hE/N-cad@P/C-h-TGFβ1 microparticles significantly improve regeneration of cartilage and subchondral bone in vivo. Together, the application of duo cadherin-functionalized microparticles is considered an innovative material-wise approach to exogenously activate hMSC aggregates for functional applications in regenerative medicine.
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Affiliation(s)
- Xueping Wang
- The Key Laboratory of Bioactive Materials Ministry of Education College of Life Science Nankai University Tianjin 300071 P. R. China
| | - Xingquan Xu
- State Key Laboratory of Pharmaceutical Biotechnology Division of Sports Medicine and Adult Reconstructive Surgery and Department of Orthopedic Surgery Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School 321 Zhongshan Road Nanjing Jiangsu 210008 P. R. China
| | - Yan Zhang
- State Key Laboratory of Medicinal Chemical Biology Nankai University Tianjin 300350 P. R. China
| | - Xueying An
- State Key Laboratory of Pharmaceutical Biotechnology Division of Sports Medicine and Adult Reconstructive Surgery and Department of Orthopedic Surgery Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School 321 Zhongshan Road Nanjing Jiangsu 210008 P. R. China
| | - Xue Zhang
- The Key Laboratory of Bioactive Materials Ministry of Education College of Life Science Nankai University Tianjin 300071 P. R. China
| | - Guoqiang Chen
- The Key Laboratory of Bioactive Materials Ministry of Education College of Life Science Nankai University Tianjin 300071 P. R. China
| | - Qing Jiang
- State Key Laboratory of Pharmaceutical Biotechnology Division of Sports Medicine and Adult Reconstructive Surgery and Department of Orthopedic Surgery Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School 321 Zhongshan Road Nanjing Jiangsu 210008 P. R. China
| | - Jun Yang
- The Key Laboratory of Bioactive Materials Ministry of Education College of Life Science Nankai University Tianjin 300071 P. R. China
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12
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The Effects of αvβ3 Integrin Blockage in Breast Tumor and Endothelial Cells under Hypoxia In Vitro. Int J Mol Sci 2022; 23:ijms23031745. [PMID: 35163668 PMCID: PMC8835904 DOI: 10.3390/ijms23031745] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/23/2022] [Accepted: 01/25/2022] [Indexed: 12/12/2022] Open
Abstract
Breast cancer is characterized by a hypoxic microenvironment inside the tumor mass, contributing to cell metastatic behavior. Hypoxia induces the expression of hypoxia-inducible factor (HIF-1α), a transcription factor for genes involved in angiogenesis and metastatic behavior, including the vascular endothelial growth factor (VEGF), matrix metalloproteinases (MMPs), and integrins. Integrin receptors play a key role in cell adhesion and migration, being considered targets for metastasis prevention. We investigated the migratory behavior of hypoxia-cultured triple-negative breast cancer cells (TNBC) and endothelial cells (HUVEC) upon αvβ3 integrin blocking with DisBa-01, an RGD disintegrin with high affinity to this integrin. Boyden chamber, HUVEC transmigration, and wound healing assays in the presence of DisBa-01 were performed in hypoxic conditions. DisBa-01 produced similar effects in the two oxygen conditions in the Boyden chamber and transmigration assays. In the wound healing assay, hypoxia abolished DisBa-01′s inhibitory effect on cell motility and decreased the MMP-9 activity of conditioned media. These results indicate that αvβ3 integrin function in cell motility depends on the assay and oxygen levels, and higher inhibitor concentrations may be necessary to achieve the same inhibitory effect as in normoxia. These versatile responses add more complexity to the role of the αvβ3 integrin during tumor progression.
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13
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Li Y, Fraser D, Mereness J, Van Hove A, Basu S, Newman M, Benoit DSW. Tissue Engineered Neurovascularization Strategies for Craniofacial Tissue Regeneration. ACS APPLIED BIO MATERIALS 2022; 5:20-39. [PMID: 35014834 PMCID: PMC9016342 DOI: 10.1021/acsabm.1c00979] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Craniofacial tissue injuries, diseases, and defects, including those within bone, dental, and periodontal tissues and salivary glands, impact an estimated 1 billion patients globally. Craniofacial tissue dysfunction significantly reduces quality of life, and successful repair of damaged tissues remains a significant challenge. Blood vessels and nerves are colocalized within craniofacial tissues and act synergistically during tissue regeneration. Therefore, the success of craniofacial regenerative approaches is predicated on successful recruitment, regeneration, or integration of both vascularization and innervation. Tissue engineering strategies have been widely used to encourage vascularization and, more recently, to improve innervation through host tissue recruitment or prevascularization/innervation of engineered tissues. However, current scaffold designs and cell or growth factor delivery approaches often fail to synergistically coordinate both vascularization and innervation to orchestrate successful tissue regeneration. Additionally, tissue engineering approaches are typically investigated separately for vascularization and innervation. Since both tissues act in concert to improve craniofacial tissue regeneration outcomes, a revised approach for development of engineered materials is required. This review aims to provide an overview of neurovascularization in craniofacial tissues and strategies to target either process thus far. Finally, key design principles are described for engineering approaches that will support both vascularization and innervation for successful craniofacial tissue regeneration.
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Affiliation(s)
- Yiming Li
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - David Fraser
- Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States.,Eastman Institute for Oral Health, University of Rochester Medical Center, Rochester, New York 14620, United States.,Translational Biomedical Sciences Program, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Jared Mereness
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States.,Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Amy Van Hove
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Sayantani Basu
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Maureen Newman
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States
| | - Danielle S W Benoit
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Orthopaedics and Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York 14642, United States.,Eastman Institute for Oral Health, University of Rochester Medical Center, Rochester, New York 14620, United States.,Translational Biomedical Sciences Program, University of Rochester Medical Center, Rochester, New York 14642, United States.,Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York 14642, United States.,Materials Science Program, University of Rochester, Rochester, New York 14627, United States.,Department of Chemical Engineering, University of Rochester, Rochester, New York 14627, United States.,Department of Biomedical Genetics and Center for Oral Biology, University of Rochester Medical Center, Rochester, New York 14642, United States
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14
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Damiati LA, Tsimbouri MP, Hernandez VL, Jayawarna V, Ginty M, Childs P, Xiao Y, Burgess K, Wells J, Sprott MR, Meek RMD, Li P, Oreffo ROC, Nobbs A, Ramage G, Su B, Salmeron-Sanchez M, Dalby MJ. Materials-driven fibronectin assembly on nanoscale topography enhances mesenchymal stem cell adhesion, protecting cells from bacterial virulence factors and preventing biofilm formation. Biomaterials 2021; 280:121263. [PMID: 34810036 DOI: 10.1016/j.biomaterials.2021.121263] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 11/03/2021] [Accepted: 11/14/2021] [Indexed: 01/07/2023]
Abstract
Post-operative infection is a major complication in patients recovering from orthopaedic surgery. As such, there is a clinical need to develop biomaterials for use in regenerative surgery that can promote mesenchymal stem cell (MSC) osteospecific differentiation and that can prevent infection caused by biofilm-forming pathogens. Nanotopographical approaches to pathogen control are being identified, including in orthopaedic materials such as titanium and its alloys. These topographies use high aspect ratio nanospikes or nanowires to prevent bacterial adhesion but these features also significantly reduce MSC adhesion and activity. Here, we use a poly (ethyl acrylate) (PEA) polymer coating on titanium nanowires to spontaneously organise fibronectin (FN) and to deliver bone morphogenetic protein 2 (BMP2) to enhance MSC adhesion and osteospecific signalling. Using a novel MSC-Pseudomonas aeruginosa co-culture, we show that the coated nanotopographies protect MSCs from cytotoxic quorum sensing and signalling molecules, enhance MSC adhesion and osteoblast differentiation and reduce biofilm formation. We conclude that the PEA polymer-coated nanotopography can both support MSCs and prevent pathogens from adhering to a biomaterial surface, thus protecting from biofilm formation and bacterial infection, and supporting osteogenic repair.
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Affiliation(s)
- Laila A Damiati
- Department of Biology, Collage of Science, University of Jeddah, Jeddah, 23890, Saudi Arabia; Centre for the Cellular Microenvironment, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Monica P Tsimbouri
- Centre for the Cellular Microenvironment, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Virginia-Llopis Hernandez
- Centre for the Cellular Microenvironment, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Vineetha Jayawarna
- Centre for the Cellular Microenvironment, Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow, G12 8LT, UK
| | - Mark Ginty
- School of Oral and Dental Sciences, University of Bristol, Bristol, BS1 2LY, UK
| | - Peter Childs
- Department of Biomedical Engineering, University of Strathclyde, Glasgow, G1 1QE, UK
| | - Yinbo Xiao
- Centre for the Cellular Microenvironment, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Karl Burgess
- Glasgow Polyomics Facility, College of Medical, Veterinary and Life Sciences, University of Glasgow, Switchback Rd, Bearsden, Glasgow, G61 1BD, UK
| | - Julia Wells
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton, SO16 6YD, UK
| | - Mark R Sprott
- Centre for the Cellular Microenvironment, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - R M Dominic Meek
- Department of Orthopedics, Queen Elizabeth II University Hospital, Glasgow, G51 4TF, UK
| | - Peifeng Li
- Centre for the Cellular Microenvironment, Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow, G12 8LT, UK
| | - Richard O C Oreffo
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Institute of Developmental Sciences, University of Southampton, Southampton, SO16 6YD, UK
| | - Angela Nobbs
- School of Oral and Dental Sciences, University of Bristol, Bristol, BS1 2LY, UK
| | - Gordon Ramage
- Oral Sciences Research Group, Glasgow Dental School, School of Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - Bo Su
- School of Oral and Dental Sciences, University of Bristol, Bristol, BS1 2LY, UK
| | - Manuel Salmeron-Sanchez
- Centre for the Cellular Microenvironment, Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow, G12 8LT, UK.
| | - Matthew J Dalby
- Centre for the Cellular Microenvironment, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK.
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15
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Deng S, Zhu Y, Zhao X, Chen J, Tuan RS, Chan HF. Efficient fabrication of monodisperse hepatocyte spheroids and encapsulation in hybrid hydrogel with controllable extracellular matrix effect. Biofabrication 2021; 14. [PMID: 34587587 DOI: 10.1088/1758-5090/ac2b89] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 09/29/2021] [Indexed: 11/12/2022]
Abstract
Three-dimensional (3D) culture techniques, such as spheroid and organoid cultures, have gained increasing interest in biomedical research. However, the understanding and control of extracellular matrix (ECM) effect in spheroid and organoid culture has been limited. Here, we report a biofabrication approach to efficiently form uniform-sized 3D hepatocyte spheroids and encapsulate them in a hybrid hydrogel composed of alginate and various ECM molecules. Cells were seeded in a microwell platform to form spheroid before being encapsulated directly in a hybrid hydrogel containing various ECM molecules, including collagen type I (COL1), collagen type IV (COL4), fibronectin (FN), and laminin (LM). A systematic analysis of the effect of ECM molecules on the primary mouse hepatocyte phenotype was then performed. Our results showed that hydrogel encapsulation of hepatocyte spheroid promoted hepatic marker expression and secretory functions. In addition, different ECM molecules elicited distinct effects on hepatic functions in 3D encapsulated hepatocyte spheroids, but not in 2D hepatocyte and 3D non-encapsulated spheroids. When encapsulated in hybrid hydrogel containing LM alone or COL1 alone, hepatocyte spheroids exhibited improved hepatic functions overall. Analysis of gene and protein expression showed an upregulation of integrinα1 and integrinα6 when LM was introduced in the hybrid hydrogel, suggesting a possible role of integrin signaling involved in the ECM effect. Finally, a combinatorial screening was performed to demonstrate the potential to screen a multitude of 3D microenvironments of varying ECM combinations that exhibited synergistic influence, indicating a strong positive effect of COL1 and a negative interaction effect of COL1·LM on both albumin and urea secretion. These findings illustrate the broad application potential of this biofabrication approach in identifying optimal ECM composition(s) for engineering 3D tissue, and elucidating defined ECM cues for tissue engineering and regenerative medicine.
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Affiliation(s)
- Shuai Deng
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China
| | - Yanlun Zhu
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China
| | - Xiaoyu Zhao
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China
| | - Jiansu Chen
- Key Laboratory for Regenerative Medicine, Ministry of Education of China, Jinan University, Guangzhou, People's Republic of China.,Aier Eye Institute, Changsha, People's Republic of China.,Aier School of Ophthalmology, Central South University, Changsha, People's Republic of China.,Institute of Ophthalmology, Medical College, Jinan University, Guangzhou, People's Republic of China.,Department of Ophthalmology, First Affiliated Hospital of Jinan University, Guangzhou, People's Republic of China
| | - Rocky S Tuan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,Key Laboratory for Regenerative Medicine of the Ministry of Education of China, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China.,Hong Kong Branch of CAS Center for Excellence in Animal Evolution and Genetics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, People's Republic of China
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16
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Massaro MS, Pálek R, Rosendorf J, Červenková L, Liška V, Moulisová V. Decellularized xenogeneic scaffolds in transplantation and tissue engineering: Immunogenicity versus positive cell stimulation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 127:112203. [PMID: 34225855 DOI: 10.1016/j.msec.2021.112203] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 05/13/2021] [Accepted: 05/18/2021] [Indexed: 01/22/2023]
Abstract
Seriously compromised function of some organs can only be restored by transplantation. Due to the shortage of human donors, the need to find another source of organs is of primary importance. Decellularized scaffolds of non-human origin are being studied as highly potential biomaterials for tissue engineering. Their biological nature and thus the ability to provide a naturally-derived environment for human cells to adhere and grow highlights their great advantage in comparison to synthetic scaffolds. Nevertheless, since every biomaterial implanted in the body generates immune reaction, studying the interaction of the scaffold with the surrounding tissues is necessary. This review aims to summarize current knowledge on the immunogenicity of semi-xenografts involved in transplantation. Moreover, positive aspects of the interaction between xenogeneic scaffold and human cells are discussed, focusing on specific roles of proteins associated with extracellular matrix in cell adhesion and signalling.
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Affiliation(s)
- Maria Stefania Massaro
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 32300 Pilsen, Czech Republic
| | - Richard Pálek
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 32300 Pilsen, Czech Republic; Department of Surgery, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 80, 32300 Pilsen, Czech Republic
| | - Jáchym Rosendorf
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 32300 Pilsen, Czech Republic; Department of Surgery, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 80, 32300 Pilsen, Czech Republic
| | - Lenka Červenková
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 32300 Pilsen, Czech Republic; Department of Pathology, Third Faculty of Medicine, Charles University, Ruska 87, 100 00 Prague 10, Czech Republic
| | - Václav Liška
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 32300 Pilsen, Czech Republic; Department of Surgery, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 80, 32300 Pilsen, Czech Republic
| | - Vladimíra Moulisová
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 32300 Pilsen, Czech Republic.
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17
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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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18
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Onal S, Turker-Burhan M, Bati-Ayaz G, Yanik H, Pesen-Okvur D. Breast cancer cells and macrophages in a paracrine-juxtacrine loop. Biomaterials 2020; 267:120412. [PMID: 33161320 DOI: 10.1016/j.biomaterials.2020.120412] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 09/16/2020] [Accepted: 09/18/2020] [Indexed: 01/05/2023]
Abstract
Breast cancer cells (BCC) and macrophages are known to interact via epidermal growth factor (EGF) produced by macrophages and colony stimulating factor-1 (CSF-1) produced by BCC. Despite contradictory findings, this interaction is perceived as a paracrine loop. Further, the underlying mechanism of interaction remains unclear. Here, we investigated interactions of BCC with macrophages in 2D and 3D. While both BCC and macrophages showed invasion/chemotaxis to fetal bovine serum, only macrophages showed chemotaxis to BCC in custom designed 3D cell-on-a-chip devices. These results were in agreement with gradient simulation results and ELISA results showing that macrophage-derived-EGF was not secreted into macrophage-conditioned-medium. Live cell imaging of BCC in the presence and absence of iressa showed that macrophages but not macrophage-derived-matrix modulated adhesion and motility of BCC in 2D. 3D co-culture experiments in collagen and matrigel showed that BCC changed their multicellular organization in the presence of macrophages. In custom designed 3D co-culture cell-on-a-chip devices, macrophages promoted and reduced migration of BCC in collagen and matrigel, respectively. Furthermore, adherent but not suspended BCC endocytosed EGFR when in contact with macrophages. Collectively, our data revealed that macrophages showed chemotaxis towards BCC whereas BCC required direct contact to interact with macrophage-derived-EGF. Therefore, we propose that the interaction between cancer cells and macrophages is a paracrine-juxtacrine loop of CSF-1 and EGF, respectively.
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Affiliation(s)
- Sevgi Onal
- Graduate Program in Biotechnology and Bioengineering, Turkey
| | - Merve Turker-Burhan
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, Gulbahce Kampusu, Urla, Izmir, 35430, Turkey
| | - Gizem Bati-Ayaz
- Graduate Program in Biotechnology and Bioengineering, Turkey
| | - Hamdullah Yanik
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, Gulbahce Kampusu, Urla, Izmir, 35430, Turkey
| | - Devrim Pesen-Okvur
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, Gulbahce Kampusu, Urla, Izmir, 35430, Turkey.
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19
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Goh SK, Halfter W, Richardson T, Bertera S, Vaidya V, Candiello J, Bradford M, Banerjee I. Organ-specific ECM arrays for investigating Cell-ECM interactions during stem cell differentiation. Biofabrication 2020; 13. [PMID: 33045682 DOI: 10.1088/1758-5090/abc05f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 10/12/2020] [Indexed: 12/22/2022]
Abstract
Pluripotent stem cells are promising source of cells for tissue engineering, regenerative medicine and drug discovery applications. The process of stem cell differentiation is regulated by multi-parametric cues from the surrounding microenvironment, one of the critical one being cell interaction with extracellular matrix (ECM). The ECM is a complex tissue-specific structure which are important physiological regulators of stem cell function and fate. Recapitulating this native ECM microenvironment niche is best facilitated by decellularized tissue/ organ derived ECM, which can faithfully reproduce the physiological environment with high fidelity to in vivo condition and promote tissue-specific cellular development and maturation. Recognizing the need for organ specific ECM in a 3D culture environment in driving phenotypic differentiation and maturation of hPSCs, we fabricated an ECM array platform using native-mimicry ECM from decellularized organs (namely pancreas, liver and heart), which allows cell-ECM interactions in both 2D and 3D configuration. The ECM array was integrated with rapid quantitative imaging for a systematic investigation of matrix protein profiles and sensitive measurement of cell-ECM interaction during hPSC differentiation. We tested our platform by elucidating the role of the three different organ-specific ECM in supporting induced pancreatic differentiation of hPSCs. While the focus of this report is on pancreatic differentiation, the developed platform is versatile to be applied to characterize any lineage specific differentiation.
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Affiliation(s)
- Saik Kia Goh
- University of Pittsburgh, Pittsburgh, 15261, UNITED STATES
| | - Willi Halfter
- University of Pittsburgh, Pittsburgh, Pennsylvania, UNITED STATES
| | - Thomas Richardson
- Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, UNITED STATES
| | - Suzanne Bertera
- Allegheny Health Network, Pittsburgh, Pennsylvania, UNITED STATES
| | - Vimal Vaidya
- University of Pittsburgh, Pittsburgh, Pennsylvania, UNITED STATES
| | - Joe Candiello
- University of Pittsburgh, Pittsburgh, Pennsylvania, UNITED STATES
| | - Mahalia Bradford
- Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, UNITED STATES
| | - Ipsita Banerjee
- Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, 15261, UNITED STATES
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20
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Boolean model of anchorage dependence and contact inhibition points to coordinated inhibition but semi-independent induction of proliferation and migration. Comput Struct Biotechnol J 2020; 18:2145-2165. [PMID: 32913583 PMCID: PMC7451872 DOI: 10.1016/j.csbj.2020.07.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 06/23/2020] [Accepted: 07/22/2020] [Indexed: 12/16/2022] Open
Abstract
Epithelial cells respond to their physical neighborhood with mechano-sensitive behaviors required for development and tissue maintenance. These include anchorage dependence, matrix stiffness-dependent proliferation, contact inhibition of proliferation and migration, and collective migration that balances cell crawling with the maintenance of cell junctions. While required for development and tissue repair, these coordinated responses to the microenvironment also contribute to cancer metastasis. Predictive models of the signaling networks that coordinate these behaviors are critical in controlling cell behavior to halt disease. Here we propose a Boolean regulatory network model that synthesizes mechanosensitive signaling that links anchorage to a matrix of varying stiffness and cell density sensing to contact inhibition, proliferation, migration, and apoptosis. Our model can reproduce anchorage dependence and anoikis, detachment-induced cytokinesis errors, the effect of matrix stiffness on proliferation, and contact inhibition of proliferation and migration by two mechanisms that converge on the YAP transcription factor. In addition, we offer testable predictions related to cell cycle-dependent anoikis sensitivity, the molecular requirements for abolishing contact inhibition, and substrate stiffness dependent expression of the catalytic subunit of PI3K. Moreover, our model predicts heterogeneity in migratory vs. non-migratory phenotypes in sub-confluent monolayers, and co-inhibition but semi-independent induction of proliferation vs. migration as a function of cell density and mitogenic stimulation. Our model serves as a stepping-stone towards modeling mechanosensitive routes to the epithelial to mesenchymal transition, capturing the effects of the mesenchymal state on anoikis resistance, and understanding the balance between migration versus proliferation at each stage of the epithelial to mesenchymal transition.
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Crosstalk between Epidermal Growth Factor Receptors (EGFR) and integrins in resistance to EGFR tyrosine kinase inhibitors (TKIs) in solid tumors. Eur J Cell Biol 2020; 99:151083. [PMID: 32381360 DOI: 10.1016/j.ejcb.2020.151083] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/17/2020] [Accepted: 04/18/2020] [Indexed: 12/21/2022] Open
Abstract
Cell adhesion to the extracellular matrix (ECM) is important in a variety of physiological and pathologic processes, including development, tumor invasion, and metastasis. Integrin-mediated attachment to ECM proteins has emerged to cue events primitively important for the transformed phenotype of human cancer cells. Cross-talk between integrins and growth factor receptors takes an increasingly prominent role in defining adhesion, motility, and cell growth. This functional interaction has expanded beyond to link integrins with resistance to Tyrosine kinase inhibitors (TKIs) of Epidermal Growth Factor Receptors (EGFRs). In this regard, integrin-mediated adhesion has two separate functions one as a clear collaborator with growth factor receptor signaling and the second as a basic mechanism contributing in Epithelial to Mesenchymal Transition (EMT) which affects response to chemotherapy. This review provides an overview of these mechanisms and describes treatment options for selectively targeting and disrupting integrin interaction to EGFR for cancer therapy.
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22
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Morell RJ, Olszewski R, Tona R, Leitess S, Wafa TT, Taukulis I, Schultz JM, Thomason EJ, Richards K, Whitley BN, Hill C, Saunders T, Starost MF, Fitzgerald T, Wilson E, Ohyama T, Friedman TB, Hoa M. Noncoding Microdeletion in Mouse Hgf Disrupts Neural Crest Migration into the Stria Vascularis, Reduces the Endocochlear Potential, and Suggests the Neuropathology for Human Nonsyndromic Deafness DFNB39. J Neurosci 2020; 40:2976-2992. [PMID: 32152201 PMCID: PMC7141880 DOI: 10.1523/jneurosci.2278-19.2020] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 12/13/2022] Open
Abstract
Hepatocyte growth factor (HGF) is a multifunctional protein that signals through the MET receptor. HGF stimulates cell proliferation, cell dispersion, neuronal survival, and wound healing. In the inner ear, levels of HGF must be fine-tuned for normal hearing. In mice, a deficiency of HGF expression limited to the auditory system, or an overexpression of HGF, causes neurosensory deafness. In humans, noncoding variants in HGF are associated with nonsyndromic deafness DFNB39 However, the mechanism by which these noncoding variants causes deafness was unknown. Here, we reveal the cause of this deafness using a mouse model engineered with a noncoding intronic 10 bp deletion (del10) in Hgf Male and female mice homozygous for del10 exhibit moderate-to-profound hearing loss at 4 weeks of age as measured by tone burst auditory brainstem responses. The wild type (WT) 80 mV endocochlear potential was significantly reduced in homozygous del10 mice compared with WT littermates. In normal cochlea, endocochlear potentials are dependent on ion homeostasis mediated by the stria vascularis (SV). Previous studies showed that developmental incorporation of neural crest cells into the SV depends on signaling from HGF/MET. We show by immunohistochemistry that, in del10 homozygotes, neural crest cells fail to infiltrate the developing SV intermediate layer. Phenotyping and RNAseq analyses reveal no other significant abnormalities in other tissues. We conclude that, in the inner ear, the noncoding del10 mutation in Hgf leads to developmental defects of the SV and consequently dysfunctional ion homeostasis and a reduction in the EP, recapitulating human DFNB39 nonsyndromic deafness.SIGNIFICANCE STATEMENT Hereditary deafness is a common, clinically and genetically heterogeneous neurosensory disorder. Previously, we reported that human deafness DFNB39 is associated with noncoding variants in the 3'UTR of a short isoform of HGF encoding hepatocyte growth factor. For normal hearing, HGF levels must be fine-tuned as an excess or deficiency of HGF cause deafness in mouse. Using a Hgf mutant mouse with a small 10 bp deletion recapitulating a human DFNB39 noncoding variant, we demonstrate that neural crest cells fail to migrate into the stria vascularis intermediate layer, resulting in a significantly reduced endocochlear potential, the driving force for sound transduction by inner ear hair cells. HGF-associated deafness is a neurocristopathy but, unlike many other neurocristopathies, it is not syndromic.
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Affiliation(s)
| | | | | | | | - Talah T Wafa
- Mouse Auditory Testing Core Facility, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland 20892
| | | | | | | | | | | | | | - Thomas Saunders
- Transgenic Animal Model Core, University of Michigan, Ann Arbor, Michigan 48109-5674
| | - Matthew F Starost
- Division of Veterinarian Resources, National Institutes of Health, Maryland 20892, and
| | - Tracy Fitzgerald
- Mouse Auditory Testing Core Facility, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland 20892
| | | | - Takahiro Ohyama
- Department of Otolaryngology, University of Southern California, Los Angeles, California 90033
| | | | - Michael Hoa
- Auditory Development and Restoration Program,
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Contractile myosin rings and cofilin-mediated actin disassembly orchestrate ECM nanotopography sensing. Biomaterials 2020; 232:119683. [PMID: 31927180 DOI: 10.1016/j.biomaterials.2019.119683] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 11/22/2019] [Accepted: 12/12/2019] [Indexed: 12/24/2022]
Abstract
The nanotopography and nanoscale geometry of the extra-cellular matrix (ECM) are important regulators of cell adhesion, motility and fate decision. However, unlike the sensing of matrix mechanics and ECM density, the molecular processes regulating the direct sensing of the ECM nanotopography and nanoscale geometry are not well understood. Here, we use nanotopographical patterns generated via electrospun nanofibre lithography (ENL) to investigate the mechanisms of nanotopography sensing by cells. We observe the dysregulation of actin dynamics, resulting in the surprising formation of actin foci. This alteration of actin organisation is regulated by myosin contractility but independent of adapter proteins such as vinculin. This process is highly dependent on differential integrin expression as β3 integrin expressing cells, more sensitive to nanopattern dimensions than β1 integrin expressing cells, also display increased perturbation of actin assembly and actin foci formation. We propose that, in β3 integrin expressing cells, contractility results in the destabilisation of nanopatterned actin networks, collapsing into foci and sequestering regulators of actin dynamics such as cofilin that orchestrate disassembly. Therefore, in contrast to the sensing of substrate mechanics and ECM ligand density, which are directly orchestrated by focal adhesion assembly, we propose that nanotopography sensing is regulated by a long-range sensing mechanism, remote from focal adhesions and mediated by the actin architecture.
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Gong J, Cai H, Noggle S, Paull D, Rizzolo LJ, Del Priore LV, Fields MA. Stem cell-derived retinal pigment epithelium from patients with age-related macular degeneration exhibit reduced metabolism and matrix interactions. Stem Cells Transl Med 2019; 9:364-376. [PMID: 31840941 PMCID: PMC7031648 DOI: 10.1002/sctm.19-0321] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 11/25/2019] [Indexed: 12/12/2022] Open
Abstract
Modeling age‐related macular degeneration (AMD) is challenging, because it is a multifactorial disease. To focus on interactions between the retinal pigment epithelium (RPE) and Bruch's membrane, we generated RPE from AMD patients and used an altered extracellular matrix (ECM) that models aged Bruch's membrane. Induced pluripotent stem cells (iPSCs) were generated from fibroblasts isolated from AMD patients or age‐matched (normal) controls. RPE derived from iPSCs were analyzed by morphology, marker expression, transepithelial electrical resistance (TER), and phagocytosis of rod photoreceptor outer segments. Cell attachment and viability was tested on nitrite‐modified ECM, a typical modification of aged Bruch's membrane. DNA microarrays with hierarchical clustering and analysis of mitochondrial function were used to elucidate possible mechanisms for the observed phenotypes. Differentiated RPE displayed cell‐specific morphology and markers. The TER and phagocytic capacity were similar among iPSC‐derived RPE cultures. However, distinct clusters were found for the transcriptomes of AMD and control iPSC‐derived RPE. AMD‐derived iPSC‐RPE downregulated genes responsible for metabolic‐related pathways and cell attachment. AMD‐derived iPSC‐RPE exhibited reduced mitochondrial respiration and ability to attach and survive on nitrite‐modified ECM. Cells that did attach induced the expression of complement genes. Despite reprogramming, iPSC derived from AMD patients yielded RPE with a transcriptome that is distinct from that of age‐matched controls. When challenged with an AMD‐like modification of Bruch's membrane, AMD‐derived iPSC‐RPE activated the complement immune system.
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Affiliation(s)
- Jie Gong
- Department of Ophthalmology and Visual Science, Yale University School of Medicine, New Haven, Connecticut
| | - Hui Cai
- Department of Ophthalmology and Visual Science, Yale University School of Medicine, New Haven, Connecticut
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- The New York Stem Cell Foundation (NYSCF) Research Institute, New York, New York
| | - Scott Noggle
- The New York Stem Cell Foundation (NYSCF) Research Institute, New York, New York
| | - Daniel Paull
- The New York Stem Cell Foundation (NYSCF) Research Institute, New York, New York
| | - Lawrence J Rizzolo
- Department of Ophthalmology and Visual Science, Yale University School of Medicine, New Haven, Connecticut.,Department of Surgery, Yale University School of Medicine, New Haven, Connecticut
| | - Lucian V Del Priore
- Department of Ophthalmology and Visual Science, Yale University School of Medicine, New Haven, Connecticut
| | - Mark A Fields
- Department of Ophthalmology and Visual Science, Yale University School of Medicine, New Haven, Connecticut
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25
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Co-immobilization of CD133 antibodies, vascular endothelial growth factors, and REDV peptide promotes capture, proliferation, and differentiation of endothelial progenitor cells. Acta Biomater 2019; 96:137-148. [PMID: 31284097 DOI: 10.1016/j.actbio.2019.07.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/26/2019] [Accepted: 07/03/2019] [Indexed: 12/18/2022]
Abstract
Capture of endothelial progenitor cells (EPCs) in situ has been considered as a promising strategy for the rapid endothelialization and long-term patency of artificial blood vessels and implant devices. In this study, a CD133+ EPC capture surface was fabricated by grafting CD133 antibody (a more specific EPC surface marker than CD34) and Arg-Glu-Asp-Val (REDV) peptideon the methacrylate-grafted hyaluronic acid (MA-HA) and heparin-hybridized (MA-HA&Heparin) resisting layer. Vascular endothelial growth factor (VEGF) was further conjugated to the immobilized heparin. This engineered surface showed good hemocompatibility and significantly higher ability of capturing CD133+ EPCs from human peripheral blood mononuclear cells (PBMCs) and obviously upregulated the expression of endothelial cell (EC) marker genes of EPCs such as VEGF receptor 2 (VEGFR2), CD31, VE-cadherin, and von Willebrand factor (vWF), facilitating the differentiation of EPCs into ECs. The dramatically enhanced EPC proliferation on this surface was dependent on the integrin-VEGFR synergistic signaling, as ERK1/2 phosphorylation was only significantly enhanced on the REDV and VEGF co-immobilized surface. This study highlights a new surface coating strategy for blood-contact materials based on the specific EPC capturing and rapid endothelialization. STATEMENT OF SIGNIFICANCE: Capture of endothelial progenitor cells (EPCs) in situ is a promising strategy for the rapid endothelialization and long-term patency of artificial blood vessels and scaffolds. More specific capture of EPCs by targeting CD133 rather than CD34 can better reduce the risk of inflammation and restenosis. On the other hand, an appropriate microenvironment for EPC proliferation is equally important for endothelialization, which is rarely considered by the existing EPC capture strategies. In this study, the capture ratio of EPCs was significantly increased by simultaneously grafting CD133 antibody and VEGF on a MA-HA and heparin-hybridized antifouling layer. Further, proliferation of EPCs after capture was significantly promoted by grafting VEGF and REDV peptide through the integrin-VEGFR synergistic signaling. This study highlights a new strategy for the surface coating of blood-contact materials based on specific EPC capture and rapid endothelialization.
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26
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Lino RLB, Dos Santos PK, Pisani GFD, Altei WF, Cominetti MR, Selistre-de-Araújo HS. Alphavbeta3 integrin blocking inhibits apoptosis and induces autophagy in murine breast tumor cells. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:118536. [PMID: 31465809 DOI: 10.1016/j.bbamcr.2019.118536] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 08/19/2019] [Accepted: 08/20/2019] [Indexed: 12/15/2022]
Abstract
Integrins are cell receptors that mediate adhesion to the extracellular matrix (ECM) and regulate cell migration, a crucial process in tumor invasion. The αvβ3 integrin recognizes the arginine-glycine-aspartic acid (RGD) motif in ECM proteins and it can be antagonized by RGD-peptides, resulting in decreased cell migration and invasion. RGD-based drugs have shown disappointing results in clinical trials; however, the reasons for their lack of activity are still obscure. Aiming to contribute to a better understanding of the molecular consequences of integrin inhibition, we tested a recombinant RGD-disintegrin (DisBa-01) in two types of murine cell lines, breast tumor 4T1BM2 cells and L929 fibroblasts. Only tumor cells showed decreased motility and adhesion, as well as morphologic alterations upon DisBa-01 treatment (100 and 1000 nM). This result was attributed to the higher levels of αvβ3 integrin in 4T1BM2 cells compared to L929 fibroblasts making the former more sensitive to DisBa-01 blocking. DisBa-01 induced cell cycle arrest at the S phase in 4T1BM2 cells, but it did not induce apoptosis, which was consistent with the decrease in caspase-3, 8 and 9 expression at mRNA and protein levels. DisBa-01 increases PI3K, Beclin-1 and LC3B expression in tumor cells, indicators of autophagic induction. In conclusion, αvβ3 integrin blocking by DisBa-01 results in inhibition of adhesion and migration and in the activation of an autophagy program, allowing prolonged survival and avoiding immediate apoptotic death. These observations suggest new insights into the effects of RGD-based inhibitors considering their importance in drug development for human health.
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Affiliation(s)
- Rafael Luis Bressani Lino
- Department of Physiological Sciences, Center of Biological and Health Science, Federal University of São Carlos, Rod. Washington Luis, Km 235-SP-310, São Carlos CEP 13.565-905, São Paulo, Brazil
| | - Patty Karina Dos Santos
- Department of Physiological Sciences, Center of Biological and Health Science, Federal University of São Carlos, Rod. Washington Luis, Km 235-SP-310, São Carlos CEP 13.565-905, São Paulo, Brazil
| | - Graziéle Fernanda Deriggi Pisani
- Department of Physiological Sciences, Center of Biological and Health Science, Federal University of São Carlos, Rod. Washington Luis, Km 235-SP-310, São Carlos CEP 13.565-905, São Paulo, Brazil
| | - Wanessa Fernanda Altei
- Department of Physiological Sciences, Center of Biological and Health Science, Federal University of São Carlos, Rod. Washington Luis, Km 235-SP-310, São Carlos CEP 13.565-905, São Paulo, Brazil
| | - Marcia Regina Cominetti
- Department of Gerontology, Center of Biological and Health Science, Federal University of São Carlos, Rod. Washington Luis, Km 235-SP-310, São Carlos CEP 13.565-905, São Paulo, Brazil
| | - Heloisa Sobreiro Selistre-de-Araújo
- Department of Physiological Sciences, Center of Biological and Health Science, Federal University of São Carlos, Rod. Washington Luis, Km 235-SP-310, São Carlos CEP 13.565-905, São Paulo, Brazil.
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27
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Wan W, Cheng B, Zhang C, Ma Y, Li A, Xu F, Lin M. Synergistic Effect of Matrix Stiffness and Inflammatory Factors on Osteogenic Differentiation of MSC. Biophys J 2019; 117:129-142. [PMID: 31178039 PMCID: PMC6626830 DOI: 10.1016/j.bpj.2019.05.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 04/18/2019] [Accepted: 05/09/2019] [Indexed: 12/22/2022] Open
Abstract
Mesenchymal stem cells (MSCs) in vivo reside in a complex microenvironment. Changes of both biochemical and biophysical cues in the microenvironment caused by inflammation affect the differentiation behaviors of MSCs. Most studies, however, only focus on either biochemical or biophysical cues, although the synergistic effect of matrix stiffness and inflammatory factors on osteogenic differentiation of MSCs has not been explored yet. Here, we showed that there was a matrix stiffness-dependent modulation in the osteogenic differentiation of human MSCs (hMSCs) with higher matrix stiffness favoring osteogenesis bias. However, when interleukin-1 β (IL-1β) was added, the osteogenic differentiation of hMSCs was suppressed, which was independent of increasing matrix stiffness. Both experimental observations and mathematical modeling confirmed that matrix stiffness and IL-1β could activate the ERK1/2 signaling and contribute to osteogenic differentiation. The p38 signaling activated by IL-1β has a strong role in inhibiting osteoblastic differentiation, thus diminishing the vital effect of ERK1/2 signaling. In addition, sensitivity analysis of the model parameters revealed that activation/deactivation dynamics of sensitive factors (e.g., FAK, ERK, and p38) also played a key role in the synergistic effect of matrix stiffness and IL-1β on the osteogenic differentiation of hMSCs. The outcomes of this study provide new insights into the synergistic effect of biochemical and biophysical microenvironments on regulating MSC differentiation.
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Affiliation(s)
- Wanting Wan
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology; Bioinspired Engineering and Biomechanics Center, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Bo Cheng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology; Bioinspired Engineering and Biomechanics Center, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Cheng Zhang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology; Bioinspired Engineering and Biomechanics Center, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Yufei Ma
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology; Bioinspired Engineering and Biomechanics Center, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Ang Li
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology
| | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology; Bioinspired Engineering and Biomechanics Center, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Min Lin
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology; Bioinspired Engineering and Biomechanics Center, Xi'an Jiaotong University, Xi'an, P.R. China.
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28
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Danilucci TM, Santos PK, Pachane BC, Pisani GFD, Lino RLB, Casali BC, Altei WF, Selistre-de-Araujo HS. Recombinant RGD-disintegrin DisBa-01 blocks integrin α vβ 3 and impairs VEGF signaling in endothelial cells. Cell Commun Signal 2019; 17:27. [PMID: 30894182 PMCID: PMC6425665 DOI: 10.1186/s12964-019-0339-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 03/12/2019] [Indexed: 12/18/2022] Open
Abstract
Background Integrins mediate cell adhesion, migration, and survival by connecting the intracellular machinery with the surrounding extracellular matrix. Previous studies demonstrated the interaction between αvβ3 integrin and VEGF type 2 receptor (VEGFR2) in VEGF-induced angiogenesis. DisBa-01, a recombinant His-tag fusion, RGD-disintegrin from Bothrops alternatus snake venom, binds to αvβ3 integrin with nanomolar affinity blocking cell adhesion to the extracellular matrix. Here we present in vitro evidence of a direct interference of DisBa-01 with αvβ3/VEGFR2 cross-talk and its downstream pathways. Methods Human umbilical vein (HUVECs) were cultured in plates coated with fibronectin (FN) or vitronectin (VN) and tested for migration, invasion and proliferation assays in the presence of VEGF, DisBa-01 (1000 nM) or VEGF and DisBa-01 simultaneously. Phosphorylation of αvβ3/VEGFR2 receptors and the activation of intracellular signaling pathways were analyzed by western blotting. Morphological alterations were observed and quantified by fluorescence confocal microscopy. Results DisBa-01 treatment of endothelial cells inhibited critical steps of VEGF-mediated angiogenesis such as migration, invasion and tubulogenesis. The blockage of αvβ3/VEGFR2 cross-talk by this disintegrin decreases protein expression and phosphorylation of VEGFR2 and β3 integrin subunit, regulates FAK/SrC/Paxillin downstream signals, and inhibits ERK1/2 and PI3K pathways. These events result in actin re-organization and inhibition of HUVEC migration and adhesion. Labelled-DisBa-01 colocalizes with αvβ3 integrin and VEGFR2 in treated cells. Conclusions Disintegrin inhibition of αvβ3 integrin blocks VEGFR2 signalling, even in the presence of VEGF, which impairs the angiogenic mechanism. These results improve our understanding concerning the mechanisms of pharmacological inhibition of angiogenesis. Electronic supplementary material The online version of this article (10.1186/s12964-019-0339-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Taís M Danilucci
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos, Rod. Washington Luis, km 235 - SP-310 - São Carlos, São Paulo, CEP 13565-905, Brazil
| | - Patty K Santos
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos, Rod. Washington Luis, km 235 - SP-310 - São Carlos, São Paulo, CEP 13565-905, Brazil
| | - Bianca C Pachane
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos, Rod. Washington Luis, km 235 - SP-310 - São Carlos, São Paulo, CEP 13565-905, Brazil
| | - Graziéle F D Pisani
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos, Rod. Washington Luis, km 235 - SP-310 - São Carlos, São Paulo, CEP 13565-905, Brazil
| | - Rafael L B Lino
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos, Rod. Washington Luis, km 235 - SP-310 - São Carlos, São Paulo, CEP 13565-905, Brazil
| | - Bruna C Casali
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos, Rod. Washington Luis, km 235 - SP-310 - São Carlos, São Paulo, CEP 13565-905, Brazil
| | - Wanessa F Altei
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos, Rod. Washington Luis, km 235 - SP-310 - São Carlos, São Paulo, CEP 13565-905, Brazil
| | - Heloisa S Selistre-de-Araujo
- Departamento de Ciências Fisiológicas, Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos, Rod. Washington Luis, km 235 - SP-310 - São Carlos, São Paulo, CEP 13565-905, Brazil.
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29
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Cheng ZA, Alba‐Perez A, Gonzalez‐Garcia C, Donnelly H, Llopis‐Hernandez V, Jayawarna V, Childs P, Shields DW, Cantini M, Ruiz‐Cantu L, Reid A, Windmill JFC, Addison ES, Corr S, Marshall WG, Dalby MJ, Salmeron‐Sanchez M. Nanoscale Coatings for Ultralow Dose BMP-2-Driven Regeneration of Critical-Sized Bone Defects. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1800361. [PMID: 30693176 PMCID: PMC6343071 DOI: 10.1002/advs.201800361] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 10/28/2018] [Indexed: 05/05/2023]
Abstract
While new biomaterials for regenerative therapies are being reported in the literature, clinical translation is slow. Some existing regenerative approaches rely on high doses of growth factors, such as bone morphogenetic protein-2 (BMP-2) in bone regeneration, which can cause serious side effects. An ultralow-dose growth factor technology is described yielding high bioactivity based on a simple polymer, poly(ethyl acrylate) (PEA), and mechanisms to drive stem cell differentiation and bone regeneration in a critical-sized murine defect model with translation to a clinical veterinary setting are reported. This material-based technology triggers spontaneous fibronectin organization and stimulates growth factor signalling, enabling synergistic integrin and BMP-2 receptor activation in mesenchymal stem cells. To translate this technology, plasma-polymerized PEA is used on 2D and 3D substrates to enhance cell signalling in vitro, showing the complete healing of a critical-sized bone injury in mice in vivo. Efficacy is demonstrated in a Münsterländer dog with a nonhealing humerus fracture, establishing the clinical translation of advanced ultralow-dose growth factor treatment.
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Affiliation(s)
- Zhe A. Cheng
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
| | - Andres Alba‐Perez
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
| | | | - Hannah Donnelly
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
| | | | - Vineetha Jayawarna
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
| | - Peter Childs
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
| | - David W. Shields
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
| | - Marco Cantini
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
| | - Laura Ruiz‐Cantu
- Centre for Additive ManufacturingUniversity of NottinghamNottinghamUK
| | - Andrew Reid
- Centre for Ultrasonic EngineeringDepartment of Electronic and Electrical EngineeringUniversity of StrathclydeGlasgowUK
| | - James F. C. Windmill
- Centre for Ultrasonic EngineeringDepartment of Electronic and Electrical EngineeringUniversity of StrathclydeGlasgowUK
| | | | - Sandra Corr
- Small Animal HospitalUniversity of GlasgowGlasgowUK
| | | | - Matthew J. Dalby
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
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30
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Engineered systems to study the synergistic signaling between integrin-mediated mechanotransduction and growth factors (Review). Biointerphases 2018; 13:06D302. [DOI: 10.1116/1.5045231] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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31
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Llacua LA, Faas MM, de Vos P. Extracellular matrix molecules and their potential contribution to the function of transplanted pancreatic islets. Diabetologia 2018; 61:1261-1272. [PMID: 29306997 PMCID: PMC6449002 DOI: 10.1007/s00125-017-4524-8] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 10/18/2017] [Indexed: 12/18/2022]
Abstract
Extracellular matrix (ECM) molecules are responsible for structural and biochemical support, as well as for regulation of molecular signalling and tissue repair in many organ structures, including the pancreas. In pancreatic islets, collagen type IV and VI, and laminins are the most abundant molecules, but other ECM molecules are also present. The ECM interacts with specific combinations of integrin α/β heterodimers on islet cells and guides many cellular processes. More specifically, some ECM molecules are involved in beta cell survival, function and insulin production, while others can fine tune the susceptibility of islet cells to cytokines. Further, some ECM induce release of growth factors to facilitate tissue repair. During enzymatic isolation of islets for transplantation, the ECM is damaged, impacting islet function. However, restoration of the ECM in human islets (for example by adding ECM to the interior of immunoprotective capsules) has been shown to enhance islet function. Here, we provide current insight into the role of ECM molecules in islet function and discuss the clinical potential of ECM manipulation to enhance pancreatic islet function and survival.
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Affiliation(s)
- L Alberto Llacua
- Section of Immunoendocrinology, Department of Pathology and Medical Biology, University of Groningen, Hanzeplein 1 EA11, 9700 RB, Groningen, the Netherlands.
- University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
| | - Marijke M Faas
- Section of Immunoendocrinology, Department of Pathology and Medical Biology, University of Groningen, Hanzeplein 1 EA11, 9700 RB, Groningen, the Netherlands
- University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Paul de Vos
- Section of Immunoendocrinology, Department of Pathology and Medical Biology, University of Groningen, Hanzeplein 1 EA11, 9700 RB, Groningen, the Netherlands
- University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
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Al-Jarsha M, Moulisová V, Leal-Egaña A, Connell A, Naudi KB, Ayoub AF, Dalby MJ, Salmerón-Sánchez M. Engineered Coatings for Titanium Implants To Present Ultralow Doses of BMP-7. ACS Biomater Sci Eng 2018; 4:1812-1819. [PMID: 29862317 PMCID: PMC5973637 DOI: 10.1021/acsbiomaterials.7b01037] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 04/22/2018] [Indexed: 01/11/2023]
Abstract
![]()
The
ongoing research to improve the clinical outcome of titanium
implants has resulted in the implemetation of multiple approches to
deliver osteogenic growth factors accelerating and sustaining osseointegration.
Here we show the presentation of human bone morphogenetic protein
7 (BMP-7) adsorbed to titanium discs coated with poly(ethyl acrylate)
(PEA). We have previously shown that PEA promotes fibronectin organization
into nanonetworks exposing integrin- and growth-factor-binding domains,
allowing a synergistic interaction at the integrin/growth factor receptor
level. Here, titanium discs were coated with PEA and fibronectin and
then decorated with ng/mL doses of BMP-7. Human mesenchymal stem cells
were used to investigate cellular responses on these functionalized
microenvironments. Cell adhesion, proliferation, and mineralization,
as well as osteogenic markers expression (osteopontin and osteocalcin)
revealed the ability of the system to be more potent in osteodifferentiation
of the mesenchymal cells than combinations of titanium and BMP-7 in
absence of PEA coatings. This work represents a novel strategy to
improve the biological activity of titanium implants with BMP-7.
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Affiliation(s)
- Mohammed Al-Jarsha
- Department of Oral and Maxillofacial Surgery, Dental Hospital and School, Glasgow University, G2 3JZ Glasgow, United Kingdom.,Department of Oral Surgery, College of Dentistry, University of Baghdad, 10001Baghdad, Iraq
| | - Vladimíra Moulisová
- The Centre for the Cellular Microenvironment, University of Glasgow, G12 8LT Glasgow, United Kingdom
| | - Aldo Leal-Egaña
- The Centre for the Cellular Microenvironment, University of Glasgow, G12 8LT Glasgow, United Kingdom
| | - Andrew Connell
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, G12 8QQ Glasgow, United Kingdom
| | - Kurt B Naudi
- Department of Oral and Maxillofacial Surgery, Dental Hospital and School, Glasgow University, G2 3JZ Glasgow, United Kingdom
| | - Ashraf F Ayoub
- Department of Oral and Maxillofacial Surgery, Dental Hospital and School, Glasgow University, G2 3JZ Glasgow, United Kingdom
| | - Matthew J Dalby
- The Centre for the Cellular Microenvironment, University of Glasgow, G12 8LT Glasgow, United Kingdom
| | - Manuel Salmerón-Sánchez
- The Centre for the Cellular Microenvironment, University of Glasgow, G12 8LT Glasgow, United Kingdom
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Heher P, Mühleder S, Mittermayr R, Redl H, Slezak P. Fibrin-based delivery strategies for acute and chronic wound healing. Adv Drug Deliv Rev 2018; 129:134-147. [PMID: 29247766 DOI: 10.1016/j.addr.2017.12.007] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 10/24/2017] [Accepted: 12/09/2017] [Indexed: 12/17/2022]
Abstract
Fibrin, a natural hydrogel, is the end product of the physiological blood coagulation cascade and naturally involved in wound healing. Beyond its role in hemostasis, it acts as a local reservoir for growth factors and as a provisional matrix for invading cells that drive the regenerative process. Its unique intrinsic features do not only promote wound healing directly via modulation of cell behavior but it can also be fine-tuned to evolve into a delivery system for sustained release of therapeutic biomolecules, cells and gene vectors. To further augment tissue regeneration potential, current strategies exploit and modify the chemical and physical characteristics of fibrin to employ combined incorporation of several factors and their timed release. In this work we show advanced therapeutic approaches employing fibrin matrices in wound healing and cover the many possibilities fibrin offers to the field of regenerative medicine.
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Iwasawa T, Zhang P, Ohkawa Y, Momota H, Wakabayashi T, Ohmi Y, Bhuiyan RH, Furukawa K, Furukawa K. Enhancement of malignant properties of human glioma cells by ganglioside GD3/GD2. Int J Oncol 2018; 52:1255-1266. [PMID: 29436609 DOI: 10.3892/ijo.2018.4266] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 01/19/2018] [Indexed: 11/06/2022] Open
Abstract
Sialic acid-containing glycosphingolipids, gangliosides, are considered as cancer associated antigens in neuro-ectoderm-derived tumors such as melanomas and neuroblastomas. In particular, gangliosides GD3 and GD2 are expressed in human gliomas. It has been reported that their expression levels increase along with increased malignant properties. However, the implication of GD3/GD2 in human glioma cells has never been clarified, at least to the best of our knowledge. In this study, we introduced the cDNA of GD3 synthase (GD3S)(ST8SIA1) into a glioma cell line, U-251MG, that expresses neither GD3 nor GD2, thereby establishing transfectant cells U-251MG-GD3S(+) expressing high levels of GD3 and GD2 on the cell surface. In these U-251MG‑GD3S(+) cell lines, signaling molecules such as Erk1/2, Akt, p130Cas, paxillin and focal adhesion kinase were activated, leading to the enhancement of invasion activity and motility. It was then demonstrated that the U-251MG-GD3S(+) cells could proliferate under culture conditions with low or no serum concentrations without undergoing cell cycle arrest by escaping the accumulation of p16 and p21. All these results suggested that GD3 and GD2 highly expressed in gliomas confer increased invasion and mobility, cell growth abilities under low serum conditions, and increased ratios of the S-G2/M phase in the cell cycle.
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Affiliation(s)
- Taiji Iwasawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Pu Zhang
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Yuki Ohkawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
| | - Hiroyuki Momota
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Toshihiko Wakabayashi
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Yuhsuke Ohmi
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Robiul H Bhuiyan
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
| | - Keiko Furukawa
- Department of Biomedical Sciences, Chubu University College of Life and Health Sciences, Kasugai, Aichi 487-8501, Japan
| | - Koichi Furukawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
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González MN, de Mello W, Butler-Browne GS, Silva-Barbosa SD, Mouly V, Savino W, Riederer I. HGF potentiates extracellular matrix-driven migration of human myoblasts: involvement of matrix metalloproteinases and MAPK/ERK pathway. Skelet Muscle 2017; 7:20. [PMID: 29017538 PMCID: PMC5635537 DOI: 10.1186/s13395-017-0138-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 09/22/2017] [Indexed: 12/31/2022] Open
Abstract
Background The hepatocyte growth factor (HGF) is required for the activation of muscle progenitor cells called satellite cells (SC), plays a role in the migration of proliferating SC (myoblasts), and is present as a soluble factor during muscle regeneration, along with extracellular matrix (ECM) molecules. In this study, we aimed at determining whether HGF is able to interact with ECM proteins, particularly laminin 111 and fibronectin, and to modulate human myoblast migration. Methods We evaluated the expression of the HGF-receptor c-Met, laminin, and fibronectin receptors by immunoblotting, flow cytometry, or immunofluorescence and used Transwell assays to analyze myoblast migration on laminin 111 and fibronectin in the absence or presence of HGF. Zymography was used to check whether HGF could modulate the production of matrix metalloproteinases by human myoblasts, and the activation of MAPK/ERK pathways was evaluated by immunoblotting. Results We demonstrated that human myoblasts express c-Met, together with laminin and fibronectin receptors. We observed that human laminin 111 and fibronectin have a chemotactic effect on myoblast migration, and this was synergistically increased when low doses of HGF were added. We detected an increase in MMP-2 activity in myoblasts treated with HGF. Conversely, MMP-2 inhibition decreased the HGF-associated stimulation of cell migration triggered by laminin or fibronectin. HGF treatment also induced in human myoblasts activation of MAPK/ERK pathways, whose specific inhibition decreased the HGF-associated stimulus of cell migration triggered by laminin 111 or fibronectin. Conclusions We demonstrate that HGF induces ERK phosphorylation and MMP production, thus stimulating human myoblast migration on ECM molecules. Conceptually, these data state that the mechanisms involved in the migration of human myoblasts comprise both soluble and insoluble moieties. This should be taken into account to optimize the design of therapeutic cell transplantation strategies by improving the migration of donor cells within the host tissue, a main issue regarding this approach. Electronic supplementary material The online version of this article (10.1186/s13395-017-0138-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mariela Natacha González
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil 4365, Manguinhos, Rio de Janeiro, 21045-900, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Av. Brasil 4365, Manguinhos, 21045-900, Rio de Janeiro, Brasil
| | - Wallace de Mello
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil 4365, Manguinhos, Rio de Janeiro, 21045-900, Brazil
| | - Gillian S Butler-Browne
- Sorbonne Universités, Université Pierre et Marie Curie, INSERM UMRS974, CNRS FRE3617, Center for Research in Myology, 47 Boulevard de l'hôpital, 75013, Paris, France
| | - Suse Dayse Silva-Barbosa
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil 4365, Manguinhos, Rio de Janeiro, 21045-900, Brazil.,Department of Clinical Research, National Cancer Institute (INCA), Rio de Janeiro, Brazil
| | - Vincent Mouly
- Sorbonne Universités, Université Pierre et Marie Curie, INSERM UMRS974, CNRS FRE3617, Center for Research in Myology, 47 Boulevard de l'hôpital, 75013, Paris, France
| | - Wilson Savino
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil 4365, Manguinhos, Rio de Janeiro, 21045-900, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Av. Brasil 4365, Manguinhos, 21045-900, Rio de Janeiro, Brasil
| | - Ingo Riederer
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Av. Brasil 4365, Manguinhos, Rio de Janeiro, 21045-900, Brazil. .,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Av. Brasil 4365, Manguinhos, 21045-900, Rio de Janeiro, Brasil.
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36
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Cipitria A, Salmeron-Sanchez M. Mechanotransduction and Growth Factor Signalling to Engineer Cellular Microenvironments. Adv Healthc Mater 2017; 6. [PMID: 28792683 DOI: 10.1002/adhm.201700052] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 03/20/2017] [Indexed: 12/20/2022]
Abstract
Engineering cellular microenvironments involves biochemical factors, the extracellular matrix (ECM) and the interaction with neighbouring cells. This progress report provides a critical overview of key studies that incorporate growth factor (GF) signalling and mechanotransduction into the design of advanced microenvironments. Materials systems have been developed for surface-bound presentation of GFs, either covalently tethered or sequestered through physico-chemical affinity to the matrix, as an alternative to soluble GFs. Furthermore, some materials contain both GF and integrin binding regions and thereby enable synergistic signalling between the two. Mechanotransduction refers to the ability of the cells to sense physical properties of the ECM and to transduce them into biochemical signals. Various aspects of the physics of the ECM, i.e. stiffness, geometry and ligand spacing, as well as time-dependent properties, such as matrix stiffening, degradability, viscoelasticity, surface mobility as well as spatial patterns and gradients of physical cues are discussed. To conclude, various examples illustrate the potential for cooperative signalling of growth factors and the physical properties of the microenvironment for potential applications in regenerative medicine, cancer research and drug testing.
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Affiliation(s)
- Amaia Cipitria
- Julius Wolff Institute & Center for Musculoskeletal Surgery; Charité - Universitätsmedizin Berlin; 13353 Berlin Germany
- Berlin-Brandenburg Center for Regenerative Therapies; Charité - Universitätsmedizin Berlin; 13353 Berlin Germany
| | - Manuel Salmeron-Sanchez
- Division of Biomedical Engineering; School of Engineering; University of Glasgow; Glasgow G128LT UK
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Engineered microenvironments for synergistic VEGF - Integrin signalling during vascularization. Biomaterials 2017; 126:61-74. [PMID: 28279265 PMCID: PMC5354119 DOI: 10.1016/j.biomaterials.2017.02.024] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Revised: 02/17/2017] [Accepted: 02/18/2017] [Indexed: 12/24/2022]
Abstract
We have engineered polymer-based microenvironments that promote vasculogenesis both in vitro and in vivo through synergistic integrin-growth factor receptor signalling. Poly(ethyl acrylate) (PEA) triggers spontaneous organization of fibronectin (FN) into nanonetworks which provide availability of critical binding domains. Importantly, the growth factor binding (FNIII12-14) and integrin binding (FNIII9-10) regions are simultaneously available on FN fibrils assembled on PEA. This material platform promotes synergistic integrin/VEGF signalling which is highly effective for vascularization events in vitro with low concentrations of VEGF. VEGF specifically binds to FN fibrils on PEA compared to control polymers (poly(methyl acrylate), PMA) where FN remains in a globular conformation and integrin/GF binding domains are not simultaneously available. The vasculogenic response of human endothelial cells seeded on these synergistic interfaces (VEGF bound to FN assembled on PEA) was significantly improved compared to soluble administration of VEGF at higher doses. Early onset of VEGF signalling (PLCγ1 phosphorylation) and both integrin and VEGF signalling (ERK1/2 phosphorylation) were increased only when VEGF was bound to FN nanonetworks on PEA, while soluble VEGF did not influence early signalling. Experiments with mutant FN molecules with impaired integrin binding site (FN-RGE) confirmed the role of the integrin binding site of FN on the vasculogenic response via combined integrin/VEGF signalling. In vivo experiments using 3D scaffolds coated with FN and VEGF implanted in the murine fat pad demonstrated pro-vascularization signalling by enhanced formation of new tissue inside scaffold pores. PEA-driven organization of FN promotes efficient presentation of VEGF to promote vascularization in regenerative medicine applications.
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Transcriptome analysis of the potential roles of FOXL2 in chicken pre-hierarchical and pre-ovulatory granulosa cells. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2017; 21:56-66. [PMID: 28076754 DOI: 10.1016/j.cbd.2016.12.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 12/23/2016] [Accepted: 12/24/2016] [Indexed: 11/20/2022]
Abstract
Forkheadbox L2 (FOXL2) is a transcription factor involved in mammalian ovarian development, especially in granulosa cell differentiation. However, this factor's function in mature chicken ovary is unclear. To explore the function of FOXL2 in chicken granulosa cells, we performed RNA-seq to compare the transcriptomes of pre-hierarchical (phGCs) and pre-ovulatory granulosa cells (poGCs) by FOXL2 overexpression. We observed that focal adhesion might be one of the key pathways activated during the differentiation of granulosa cells, and FOXL2 might be involved in follicle selection by regulating the expression of cytokines and the concentration of cyclic adenosine monophosphate (cAMP). Interestingly, we observed that FOXL2 played different roles in phGCs and poGCs, which might contribute to homeostasis in the chicken follicle by inducing differentiation of granulosa cells in pre-hierarchal follicles and preventing premature ovulation in pre-ovulatory follicles. Taken together, the results of our study establish a framework for understanding the potential functions of FOXL2 in the chicken granulosa cell.
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Lee DJ, Diachina S, Lee YT, Zhao L, Zou R, Tang N, Han H, Chen X, Ko CC. Decellularized bone matrix grafts for calvaria regeneration. J Tissue Eng 2016; 7:2041731416680306. [PMID: 28228929 PMCID: PMC5308431 DOI: 10.1177/2041731416680306] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 10/29/2016] [Indexed: 11/16/2022] Open
Abstract
Decellularization is a promising new method to prepare natural matrices for tissue regeneration. Successful decellularization has been reported using various tissues including skin, tendon, and cartilage, though studies using hard tissue such as bone are lacking. In this study, we aimed to define the optimal experimental parameters to decellularize natural bone matrix using 0.5% sodium dodecyl sulfate and 0.1% NH4OH. Then, the effects of decellularized bone matrix on rat mesenchymal stem cell proliferation, osteogenic gene expression, and osteogenic differentiations in a two-dimensional culture system were investigated. Decellularized bone was also evaluated with regard to cytotoxicity, biochemical, and mechanical characteristics in vitro. Evidence of complete decellularization was shown through hematoxylin and eosin staining and DNA measurements. Decellularized bone matrix displayed a cytocompatible property, conserved structure, mechanical strength, and mineral content comparable to natural bone. To study new bone formation, implantation of decellularized bone matrix particles seeded with rat mesenchymal stem cells was conducted using an orthotopic in vivo model. After 3 months post-implantation into a critical-sized defect in rat calvaria, new bone was formed around decellularized bone matrix particles and also merged with new bone between decellularized bone matrix particles. New bone formation was analyzed with micro computed tomography, mineral apposition rate, and histomorphometry. Decellularized bone matrix stimulated mesenchymal stem cell proliferation and osteogenic differentiation in vitro and in vivo, achieving effective bone regeneration and thereby serving as a promising biological bone graft.
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Affiliation(s)
- Dong Joon Lee
- Oral and Craniofacial Health Sciences Research, UNC School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - Shannon Diachina
- Oral and Craniofacial Health Sciences Research, UNC School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - Yan Ting Lee
- Oral and Craniofacial Health Sciences Research, UNC School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - Lixing Zhao
- Oral and Craniofacial Health Sciences Research, UNC School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - Rui Zou
- Oral and Craniofacial Health Sciences Research, UNC School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - Na Tang
- Oral and Craniofacial Health Sciences Research, UNC School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - Han Han
- Oral and Craniofacial Health Sciences Research, UNC School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - Xin Chen
- Oral and Craniofacial Health Sciences Research, UNC School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - Ching-Chang Ko
- Oral and Craniofacial Health Sciences Research, UNC School of Dentistry, University of North Carolina, Chapel Hill, NC, USA; Department of Orthodontics, UNC School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
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40
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Abstract
Integrins are a large family of extracellular matrix (ECM) receptors. In the developing and adult brain, many integrins are present at high levels at synapses. The tetrapartite structure of synapses - which comprises presynaptic and postsynaptic neurons, the ECM and glial processes - places synaptic integrins in an excellent position to sense dynamic changes in the synaptic environment and use this information to coordinate further changes in synapse structure and function that will shape neural circuit properties. Recent developments in our understanding of the cellular and physiological roles of integrins, which range from control of neural process outgrowth and synapse formation to regulation of synaptic plasticity and memory, enable us to attempt a synthesis of synaptic integrin function.
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41
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Dalton AC, Shlamkovitch T, Papo N, Barton WA. Constitutive Association of Tie1 and Tie2 with Endothelial Integrins is Functionally Modulated by Angiopoietin-1 and Fibronectin. PLoS One 2016; 11:e0163732. [PMID: 27695111 PMCID: PMC5047623 DOI: 10.1371/journal.pone.0163732] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 09/13/2016] [Indexed: 12/29/2022] Open
Abstract
Functional cross-talk between Tie2 and Integrin signaling pathways is essential to coordinate endothelial cell adhesion and migration in response to the extracellular matrix, yet the mechanisms behind this phenomenon are unclear. Here, we examine the possibility that receptor cross-talk is driven through uncharacterized Tie-integrin interactions on the endothelial surface. Using a live cell FRET-based proximity assay, we monitor Tie-integrin receptor recognition and demonstrate that both Tie1 and Tie2 readily associate with integrins α5ß1 and αVß3 through their respective ectodomains. Although not required, Tie2-integrin association is significantly enhanced in the presence of the extracellular component and integrin ligand fibronectin. In vitro binding assays with purified components reveal that Tie-integrin recognition is direct, and further demonstrate that the receptor binding domain of the Tie2 ligand Ang-1, but not the receptor binding domain of Ang-2, can independently associate with α5ß1 or αVß3. Finally, we reveal that cooperative Tie/integrin interactions selectively stimulate ERK/MAPK signaling in the presence of both Ang-1 and fibronectin, suggesting a molecular mechanism to sensitize Tie2 to extracellular matrix. We provide a mechanistic model highlighting the role of receptor localization and association in regulating distinct signaling cascades and in turn, the angiogenic switch.
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Affiliation(s)
- Annamarie C. Dalton
- Virginia Commonwealth University, Department of Biochemistry and Molecular Biology, Richmond, Virginia, 23298, United States of America
| | - Tomer Shlamkovitch
- Ben-Gurion University of the Negev, Department of Biotechnology Engineering and the National Institute of Biotechnology in the Negev, Beer-Sheva, 8410501, Israel
| | - Niv Papo
- Ben-Gurion University of the Negev, Department of Biotechnology Engineering and the National Institute of Biotechnology in the Negev, Beer-Sheva, 8410501, Israel
| | - William A. Barton
- Virginia Commonwealth University, Department of Biochemistry and Molecular Biology, Richmond, Virginia, 23298, United States of America
- * E-mail:
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Llopis-Hernández V, Cantini M, González-García C, Cheng ZA, Yang J, Tsimbouri PM, García AJ, Dalby MJ, Salmerón-Sánchez M. Material-driven fibronectin assembly for high-efficiency presentation of growth factors. SCIENCE ADVANCES 2016; 2:e1600188. [PMID: 27574702 PMCID: PMC5001810 DOI: 10.1126/sciadv.1600188] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 07/29/2016] [Indexed: 05/18/2023]
Abstract
Growth factors (GFs) are powerful signaling molecules with the potential to drive regenerative strategies, including bone repair and vascularization. However, GFs are typically delivered in soluble format at supraphysiological doses because of rapid clearance and limited therapeutic impact. These high doses have serious side effects and are expensive. Although it is well established that GF interactions with extracellular matrix proteins such as fibronectin control GF presentation and activity, a translation-ready approach to unlocking GF potential has not been realized. We demonstrate a simple, robust, and controlled material-based approach to enhance the activity of GFs during tissue healing. The underlying mechanism is based on spontaneous fibrillar organization of fibronectin driven by adsorption onto the polymer poly(ethyl acrylate). Fibrillar fibronectin on this polymer, but not a globular conformation obtained on control polymers, promotes synergistic presentation of integrin-binding sites and bound bone morphogenetic protein 2 (BMP-2), which enhances mesenchymal stem cell osteogenesis in vitro and drives full regeneration of a nonhealing bone defect in vivo at low GF concentrations. This simple and translatable technology could unlock the full regenerative potential of GF therapies while improving safety and cost-effectiveness.
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Affiliation(s)
- Virginia Llopis-Hernández
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, UK
| | - Marco Cantini
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, UK
| | - Cristina González-García
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, UK
| | - Zhe A. Cheng
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, UK
| | - Jingli Yang
- Center for Cell Engineering, Institute of Molecular Cell and Systems Biology, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, UK
| | - Penelope M Tsimbouri
- Center for Cell Engineering, Institute of Molecular Cell and Systems Biology, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, UK
| | - Andrés J. García
- Woodruff School of Mechanical Engineering, Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 First Drive, Atlanta, GA 30332, USA
- Corresponding author. . (M.S.-S.); . (M.J.D.); . (A.J.G.)
| | - Matthew J. Dalby
- Center for Cell Engineering, Institute of Molecular Cell and Systems Biology, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, UK
- Corresponding author. . (M.S.-S.); . (M.J.D.); . (A.J.G.)
| | - Manuel Salmerón-Sánchez
- Division of Biomedical Engineering, School of Engineering, University of Glasgow, Glasgow G12 8LT, UK
- Corresponding author. . (M.S.-S.); . (M.J.D.); . (A.J.G.)
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43
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Integrin-mediated regulation of epidermal wound functions. Cell Tissue Res 2016; 365:467-82. [PMID: 27351421 DOI: 10.1007/s00441-016-2446-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 06/02/2016] [Indexed: 01/14/2023]
Abstract
During cutaneous wound healing, keratinocyte proliferation and migration are critical for re-epithelialization. In addition the epidermis secretes growth factors, cytokines, proteases, and matricellular proteins into the wound microenvironment that modify the extracellular matrix and stimulate other wound cells that control the inflammatory response, promote angiogenesis and facilitate tissue contraction and remodeling. Wound keratinocytes express at least seven different integrins-the major cell adhesion receptors for the extracellular matrix-that collectively control essential cell-autonomous functions to ensure proper re-epithelialization, including migration, proliferation, survival and basement membrane assembly. Moreover, it has become evident in recent years that some integrins can regulate paracrine signals from wound epidermis that stimulate other wound cells involved in angiogenesis, contraction and inflammation. Importantly, it is likely that abnormal integrin expression or function in the epidermis contributes to wound pathologies such as over-exuberant healing (e.g., hypertrophic scar formation) or diminished healing (e.g., chronic wounds). In this review, we discuss current knowledge of integrin function in the epidermis, which implicates them as attractive therapeutic targets to promote wound healing or treat wound pathologies. We also discuss challenges that arise from the complex roles that multiple integrins play in wound epidermis, which may be regulated through extracellular matrix remodeling that determines ligand availability. Indeed, understanding how different integrin functions are temporally coordinated in wound epidermis and which integrin functions go awry in pathological wounds, will be important to determine how best to target them clinically to achieve maximum therapeutic benefit. Graphical abstract In addition to their well-characterized roles in keratinocyte adhesion, migration and wound re-epithelialization, epidermal integrins play important roles in modifying the wound microenvironment by regulating the expression and secretion of growth factors, extracellular proteases, and matricellular proteins that stimulate other wound cells, including vascular endothelial cells and fibroblasts/myofibroblasts.
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Ventre M, Netti PA. Engineering Cell Instructive Materials To Control Cell Fate and Functions through Material Cues and Surface Patterning. ACS APPLIED MATERIALS & INTERFACES 2016; 8:14896-14908. [PMID: 26693600 DOI: 10.1021/acsami.5b08658] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Mastering the interaction between cells and extracellular environment is a fundamental prerequisite in order to engineer functional biomaterial interfaces able to instruct cells with specific commands. Such advanced biomaterials might find relevant application in prosthesis design, tissue engineering, diagnostics and stem cell biology. Because of the highly complex, dynamic, and multifaceted context, a thorough understanding of the cell-material crosstalk has not been achieved yet; however, a variety of material features including biological cues, topography, and mechanical properties have been proved to impact the strength and the nature of the cell-material interaction, eventually affecting cell fate and functions. Although the nature of these three signals may appear very different, they are equated by their participation in the same material-cytoskeleton crosstalk pathway as they regulate cell adhesion events. In this work we present recent and relevant findings on the material-induced cell responses, with a particular emphasis on how the presentation of biochemical/biophysical signals modulates cell behavior. Finally, we summarize and discuss the literature data to draw out unifying elements concerning cell recognition of and reaction to signals displayed by material surfaces.
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Affiliation(s)
- Maurizio Ventre
- Department of Chemical, Materials and Industrial Production Engineering and Interdisciplinary Research Centre on Biomaterials, University of Naples Federico II , P.le Tecchio 80, 80125 Naples, Italy
- Center for Advanced Biomaterials for Health Care@CRIB, Istituto Italiano di Tecnologia , L.go Barsanti e Matteucci 53, 80125 Naples, Italy
| | - Paolo A Netti
- Department of Chemical, Materials and Industrial Production Engineering and Interdisciplinary Research Centre on Biomaterials, University of Naples Federico II , P.le Tecchio 80, 80125 Naples, Italy
- Center for Advanced Biomaterials for Health Care@CRIB, Istituto Italiano di Tecnologia , L.go Barsanti e Matteucci 53, 80125 Naples, Italy
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45
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Shang J, Wang H, Fan X, Shangguan L, Liu H. A genome wide analysis of alternative splicing events during the osteogenic differentiation of human cartilage endplate-derived stem cells. Mol Med Rep 2016; 14:1389-96. [PMID: 27278552 DOI: 10.3892/mmr.2016.5359] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 05/12/2016] [Indexed: 11/06/2022] Open
Abstract
Low back pain is a prevalent disease, which leads to suffering and disabilities in a vast number of individuals. Degenerative disc diseases are usually the underlying causes of low back pain. However, the pathogenesis of degenerative disc diseases is highly complex and difficult to determine. Current therapies for degenerative disc diseases are various. In particular, cell-based therapies have proven to be effective and promising. Our research group has previously isolated and identified the cartilage endplate‑derived stem cells. In addition, alternative splicing is a sophisticated regulatory mechanism, which greatly increases cellular complexity and phenotypic diversity of eukaryotic organisms. The present study continued to investigate alternative splicing events in osteogenic differentiation of cartilage endplate‑derived stem cells. An Affymetrix Human Transcriptome Array 2.0 was used to detect splicing changes between the control and differentiated samples. Additionally, molecular function and pathway analysis were also performed. Following rigorous bioinformatics analysis of the data, 3,802 alternatively spliced genes were identified, and 10 of these were selected for validation by reverse transcription‑polymerase chain reaction. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes pathway analysis also revealed numerous enriched GO terms and signaling pathways. To the best of our knowledge, the present study is the first to investigate alternative splicing mechanisms in osteogenic differentiation of stem cells on a genome‑wide scale. The illumination of molecular mechanisms of stem cell osteogenic differentiation may assist the development novel bioengineered methods to treat degenerative disc diseases.
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Affiliation(s)
- Jin Shang
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Honggang Wang
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Xin Fan
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Lei Shangguan
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Huan Liu
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
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Fourel L, Valat A, Faurobert E, Guillot R, Bourrin-Reynard I, Ren K, Lafanechère L, Planus E, Picart C, Albiges-Rizo C. β3 integrin-mediated spreading induced by matrix-bound BMP-2 controls Smad signaling in a stiffness-independent manner. J Cell Biol 2016; 212:693-706. [PMID: 26953352 PMCID: PMC4792076 DOI: 10.1083/jcb.201508018] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 02/09/2016] [Indexed: 12/31/2022] Open
Abstract
Matrix-bound BMP-2 is sufficient to induce β3 integrin–dependent, Cdc42/Src/FAK/ILK-mediated cell spreading by overriding the stiffness response through actin and adhesion site dynamics, showing BMP receptors and integrins work together to control signaling and tensional homeostasis, thereby coupling cell adhesion and fate commitment. Understanding how cells integrate multiple signaling pathways to achieve specific cell differentiation is a challenging question in cell biology. We have explored the physiological presentation of BMP-2 by using a biomaterial that harbors tunable mechanical properties to promote localized BMP-2 signaling. We show that matrix-bound BMP-2 is sufficient to induce β3 integrin–dependent C2C12 cell spreading by overriding the soft signal of the biomaterial and impacting actin organization and adhesion site dynamics. In turn, αvβ3 integrin is required to mediate BMP-2–induced Smad signaling through a Cdc42–Src–FAK–ILK pathway. β3 integrin regulates a multistep process to control first BMP-2 receptor activity and second the inhibitory role of GSK3 on Smad signaling. Overall, our results show that BMP receptors and β3 integrin work together to control Smad signaling and tensional homeostasis, thereby coupling cell adhesion and fate commitment, two fundamental aspects of developmental biology and regenerative medicine.
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Affiliation(s)
- Laure Fourel
- Institut National de la Santé et de la Recherche Médicale U823, Institut Albert Bonniot, 38042 Grenoble, France Centre National de la Recherche Scientifique, Equipe de Recherche Labellisée 5284, 38042 Grenoble, France Université Grenoble Alpes, 38041 Grenoble, France Centre National de la Recherche Scientifique UMR 5628, Laboratoire des Matériaux et du Génie Physique, Institute of Technology, 38016 Grenoble, France
| | - Anne Valat
- Institut National de la Santé et de la Recherche Médicale U823, Institut Albert Bonniot, 38042 Grenoble, France Centre National de la Recherche Scientifique, Equipe de Recherche Labellisée 5284, 38042 Grenoble, France Université Grenoble Alpes, 38041 Grenoble, France Centre National de la Recherche Scientifique UMR 5628, Laboratoire des Matériaux et du Génie Physique, Institute of Technology, 38016 Grenoble, France
| | - Eva Faurobert
- Institut National de la Santé et de la Recherche Médicale U823, Institut Albert Bonniot, 38042 Grenoble, France Centre National de la Recherche Scientifique, Equipe de Recherche Labellisée 5284, 38042 Grenoble, France Université Grenoble Alpes, 38041 Grenoble, France
| | - Raphael Guillot
- Centre National de la Recherche Scientifique UMR 5628, Laboratoire des Matériaux et du Génie Physique, Institute of Technology, 38016 Grenoble, France
| | - Ingrid Bourrin-Reynard
- Institut National de la Santé et de la Recherche Médicale U823, Institut Albert Bonniot, 38042 Grenoble, France Centre National de la Recherche Scientifique, Equipe de Recherche Labellisée 5284, 38042 Grenoble, France Université Grenoble Alpes, 38041 Grenoble, France
| | - Kefeng Ren
- Centre National de la Recherche Scientifique UMR 5628, Laboratoire des Matériaux et du Génie Physique, Institute of Technology, 38016 Grenoble, France
| | - Laurence Lafanechère
- Institut National de la Santé et de la Recherche Médicale U823, Institut Albert Bonniot, 38042 Grenoble, France Université Grenoble Alpes, 38041 Grenoble, France
| | - Emmanuelle Planus
- Institut National de la Santé et de la Recherche Médicale U823, Institut Albert Bonniot, 38042 Grenoble, France Centre National de la Recherche Scientifique, Equipe de Recherche Labellisée 5284, 38042 Grenoble, France Université Grenoble Alpes, 38041 Grenoble, France
| | - Catherine Picart
- Centre National de la Recherche Scientifique UMR 5628, Laboratoire des Matériaux et du Génie Physique, Institute of Technology, 38016 Grenoble, France
| | - Corinne Albiges-Rizo
- Institut National de la Santé et de la Recherche Médicale U823, Institut Albert Bonniot, 38042 Grenoble, France Centre National de la Recherche Scientifique, Equipe de Recherche Labellisée 5284, 38042 Grenoble, France Université Grenoble Alpes, 38041 Grenoble, France
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47
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Salmerón-Sánchez M, Dalby MJ. Synergistic growth factor microenvironments. Chem Commun (Camb) 2016; 52:13327-13336. [DOI: 10.1039/c6cc06888j] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This paper focuses on developments in materials to stimulate growth factors effects by engineering presentation in synergy with integrins.
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Affiliation(s)
- Manuel Salmerón-Sánchez
- Division of Biomedical Engineering
- School of Engineering
- University of Glasgow
- Rankine Building
- Glasgow G12 8LT
| | - Matthew J. Dalby
- Center for Cell Engineering
- Institute of Molecular Cell and Systems Biology
- University of Glasgow
- Glasgow G12 8QQ
- UK
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Hoshiba T, Chen G, Endo C, Maruyama H, Wakui M, Nemoto E, Kawazoe N, Tanaka M. Decellularized Extracellular Matrix as an In Vitro Model to Study the Comprehensive Roles of the ECM in Stem Cell Differentiation. Stem Cells Int 2015; 2016:6397820. [PMID: 26770210 PMCID: PMC4684892 DOI: 10.1155/2016/6397820] [Citation(s) in RCA: 121] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 07/30/2015] [Indexed: 12/16/2022] Open
Abstract
Stem cells are a promising cell source for regenerative medicine. Stem cell differentiation must be regulated for applications in regenerative medicine. Stem cells are surrounded by extracellular matrix (ECM) in vivo. The ECM is composed of many types of proteins and glycosaminoglycans that assemble into a complex structure. The assembly of ECM molecules influences stem cell differentiation through orchestrated intracellular signaling activated by many ECM molecules. Therefore, it is important to understand the comprehensive role of the ECM in stem cell differentiation as well as the functions of the individual ECM molecules. Decellularized ECM is a useful in vitro model for studying the comprehensive roles of ECM because it retains a native-like structure and composition. Decellularized ECM can be obtained from in vivo tissue ECM or ECM fabricated by cells cultured in vitro. It is important to select the correct decellularized ECM because each type has different properties. In this review, tissue-derived and cell-derived decellularized ECMs are compared as in vitro ECM models to examine the comprehensive roles of the ECM in stem cell differentiation. We also summarize recent studies using decellularized ECM to determine the comprehensive roles of the ECM in stem cell differentiation.
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Affiliation(s)
- Takashi Hoshiba
- Frontier Center for Organic Materials, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
- Tissue Regeneration Materials Unit, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Guoping Chen
- Tissue Regeneration Materials Unit, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Chiho Endo
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Hiroka Maruyama
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Miyuki Wakui
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Eri Nemoto
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Naoki Kawazoe
- Tissue Regeneration Materials Unit, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Masaru Tanaka
- Frontier Center for Organic Materials, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, Fukuoka 819-0395, Japan
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49
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Global Gene Expression Profiling and Alternative Splicing Events during the Chondrogenic Differentiation of Human Cartilage Endplate-Derived Stem Cells. BIOMED RESEARCH INTERNATIONAL 2015; 2015:604972. [PMID: 26649308 PMCID: PMC4662983 DOI: 10.1155/2015/604972] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 09/22/2015] [Accepted: 09/30/2015] [Indexed: 01/07/2023]
Abstract
Low back pain (LBP) is a very prevalent disease and degenerative disc diseases (DDDs) usually account for the LBP. However, the pathogenesis of DDDs is complicated and difficult to elucidate. Alternative splicing is a sophisticated regulatory process which greatly increases cellular complexity and phenotypic diversity of eukaryotic organisms. In addition, the cartilage endplate-derived stem cells have been discovered and identified by our research group. In this paper, we continue to investigate gene expression profiling and alternative splicing events during chondrogenic differentiation of cartilage endplate-derived stem cells. We adopted Affymetrix Human Transcriptome Array 2.0 (HTA 2.0) to compare the transcriptional and splicing changes between the control and differentiated samples. RT-PCR and quantitative PCR are used to validate the microarray results. The GO and KEGG pathway analysis was also performed. After bioinformatics analysis of the data, we detected 1953 differentially expressed genes. In terms of alternative splicing, the Splicing Index algorithm was used to select alternatively spliced genes. We detected 4411 alternatively spliced genes. GO and KEGG pathway analysis also revealed several functionally involved biological processes and signaling pathways. To our knowledge, this is the first study to investigate the alternative splicing mechanisms in chondrogenic differentiation of stem cells on a genome-wide scale.
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50
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Martino MM, Briquez PS, Maruyama K, Hubbell JA. Extracellular matrix-inspired growth factor delivery systems for bone regeneration. Adv Drug Deliv Rev 2015; 94:41-52. [PMID: 25895621 DOI: 10.1016/j.addr.2015.04.007] [Citation(s) in RCA: 172] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 03/27/2015] [Accepted: 04/11/2015] [Indexed: 12/22/2022]
Abstract
Growth factors are very promising molecules to enhance bone regeneration. However, their translation to clinical use has been seriously limited, facing issues related to safety and cost-effectiveness. These problems derive from the vastly supra-physiological doses of growth factor used without optimized delivery systems. Therefore, these issues have motivated the development of new delivery systems allowing better control of the spatiotemporal release and signaling of growth factors. Because the extracellular matrix (ECM) naturally plays a fundamental role in coordinating growth factor activity in vivo, a number of novel delivery systems have been inspired by the growth factor regulatory function of the ECM. After introducing the role of growth factors during the bone regeneration process, this review exposes different issues that growth factor-based therapies have encountered in the clinic and highlights recent delivery approaches based on the natural interaction between growth factor and the ECM.
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Affiliation(s)
- Mikaël M Martino
- Immunology Frontier Research Center, Osaka University, Osaka, Japan.
| | - Priscilla S Briquez
- Institute of Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Kenta Maruyama
- Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Jeffrey A Hubbell
- Institute of Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland; Institute for Molecular Engineering, University of Chicago, Chicago, IL, USA; Materials Science Division, Argonne National Laboratory, Argonne, IL, USA.
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