1
|
Pillai S, Munguia-Lopez JG, Tran SD. Bioengineered Salivary Gland Microtissues─A Review of 3D Cellular Models and their Applications. ACS APPLIED BIO MATERIALS 2024; 7:2620-2636. [PMID: 38591955 DOI: 10.1021/acsabm.4c00028] [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] [Indexed: 04/10/2024]
Abstract
Salivary glands (SGs) play a vital role in maintaining oral health through the production and release of saliva. Injury to SGs can lead to gland hypofunction and a decrease in saliva secretion manifesting as xerostomia. While symptomatic treatments for xerostomia exist, effective permanent solutions are still lacking, emphasizing the need for innovative approaches. Significant progress has been made in the field of three-dimensional (3D) SG bioengineering for applications in gland regeneration. This has been achieved through a major focus on cell culture techniques, including soluble cues and biomaterial components of the 3D niche. Cells derived from both adult and embryonic SGs have highlighted key in vitro characteristics of SG 3D models. While still in its first decade of exploration, SG spheroids and organoids have so far served as crucial tools to study SG pathophysiology. This review, based on a literature search over the past decade, covers the importance of SG cell types in the realm of their isolation, sourcing, and culture conditions that modulate the 3D microenvironment. We discuss different biomaterials employed for SG culture and the current advances made in bioengineering SG models using them. The success of these 3D cellular models are further evaluated in the context of their applications in organ transplantation and in vitro disease modeling.
Collapse
Affiliation(s)
- Sangeeth Pillai
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dental Medicine and Oral Health Sciences, McGill University, 3640 Rue University, Montreal, QC H3A 0C7, Canada
| | - Jose G Munguia-Lopez
- Department of Mining and Materials Engineering, McGill University, 3610 University Street, Montreal, QC H3A 0C5, Canada
| | - Simon D Tran
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dental Medicine and Oral Health Sciences, McGill University, 3640 Rue University, Montreal, QC H3A 0C7, Canada
| |
Collapse
|
2
|
Kim J, Eom MR, Ji Jeong E, Choi JS, Kwon SK. Multiple stimulation with spheroids comprising salivary gland and adipose-derived stem cells enhances regeneration of radiation-damaged salivary glands. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.12.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
3
|
Song Y, Uchida H, Sharipol A, Piraino L, Mereness JA, Ingalls MH, Rebhahn J, Newlands SD, DeLouise LA, Ovitt CE, Benoit DSW. Development of a functional salivary gland tissue chip with potential for high-content drug screening. Commun Biol 2021; 4:361. [PMID: 33742114 PMCID: PMC7979686 DOI: 10.1038/s42003-021-01876-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 02/17/2021] [Indexed: 01/31/2023] Open
Abstract
Radiation therapy for head and neck cancers causes salivary gland dysfunction leading to permanent xerostomia. Limited progress in the discovery of new therapeutic strategies is attributed to the lack of in vitro models that mimic salivary gland function and allow high-throughput drug screening. We address this limitation by combining engineered extracellular matrices with microbubble (MB) array technology to develop functional tissue mimetics for mouse and human salivary glands. We demonstrate that mouse and human salivary tissues encapsulated within matrix metalloproteinase-degradable poly(ethylene glycol) hydrogels formed in MB arrays are viable, express key salivary gland markers, and exhibit polarized localization of functional proteins. The salivary gland mimetics (SGm) respond to calcium signaling agonists and secrete salivary proteins. SGm were then used to evaluate radiosensitivity and mitigation of radiation damage using a radioprotective compound. Altogether, SGm exhibit phenotypic and functional parameters of salivary glands, and provide an enabling technology for high-content/throughput drug testing.
Collapse
Affiliation(s)
- Yuanhui Song
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, USA
- Center for Oral Biology, University of Rochester Medical Center, Rochester, NY, USA
| | - Hitoshi Uchida
- Center for Oral Biology, University of Rochester Medical Center, Rochester, NY, USA
- Department of Biomedical Genetics, University of Rochester Medical Center, Rochester, NY, USA
| | - Azmeer Sharipol
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, USA
- Center for Oral Biology, University of Rochester Medical Center, Rochester, NY, USA
| | - Lindsay Piraino
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, USA
- Center for Oral Biology, University of Rochester Medical Center, Rochester, NY, USA
- Department of Dermatology, University of Rochester Medical Center, Rochester, NY, USA
| | - Jared A Mereness
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, USA
- Center for Oral Biology, University of Rochester Medical Center, Rochester, NY, USA
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Matthew H Ingalls
- Center for Oral Biology, University of Rochester Medical Center, Rochester, NY, USA
- Department of Biomedical Genetics, University of Rochester Medical Center, Rochester, NY, USA
| | - Jonathan Rebhahn
- David H. Smith Center for Vaccine Biology and Immunology, University of Rochester Medical Center, Rochester, NY, USA
| | - Shawn D Newlands
- Department of Otolaryngology, University of Rochester Medical Center, Rochester, NY, USA
- Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, USA
- Department of Neuroscience, University of Rochester Medical Center, Rochester, NY, USA
| | - Lisa A DeLouise
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, USA
- Center for Oral Biology, University of Rochester Medical Center, Rochester, NY, USA
- Department of Dermatology, University of Rochester Medical Center, Rochester, NY, USA
- Materials Science Program, University of Rochester, Rochester, NY, USA
| | - Catherine E Ovitt
- Center for Oral Biology, University of Rochester Medical Center, Rochester, NY, USA
- Department of Biomedical Genetics, University of Rochester Medical Center, Rochester, NY, USA
- Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, USA
| | - Danielle S W Benoit
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, USA.
- Center for Oral Biology, University of Rochester Medical Center, Rochester, NY, USA.
- Department of Biomedical Genetics, University of Rochester Medical Center, Rochester, NY, USA.
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA.
- Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, USA.
- Materials Science Program, University of Rochester, Rochester, NY, USA.
- Department of Chemical Engineering, University of Rochester, Rochester, NY, USA.
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.
| |
Collapse
|
4
|
Serrano Martinez P, Cinat D, van Luijk P, Baanstra M, de Haan G, Pringle S, Coppes RP. Mouse parotid salivary gland organoids for the in vitro study of stem cell radiation response. Oral Dis 2020; 27:52-63. [PMID: 32531849 PMCID: PMC7818507 DOI: 10.1111/odi.13475] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 05/18/2020] [Accepted: 06/01/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Hyposalivation-related xerostomia is an irreversible, untreatable, and frequent condition after radiotherapy for head and neck cancer. Stem cell therapy is an attractive option of treatment, but demands knowledge of stem cell functioning. Therefore, we aimed to develop a murine parotid gland organoid model to explore radiation response of stem cells in vitro. MATERIALS AND METHODS Single cells derived from murine parotid gland organoids were passaged in Matrigel with defined medium to assess self-renewal and differentiation potential. Single cells were irradiated and plated in a 3D clonogenic stem cell survival assay to assess submandibular and parotid gland radiation response. RESULTS Single cells derived from parotid gland organoids were able to extensively self-renew and differentiate into all major tissue cell types, indicating the presence of potential stem cells. FACS selection for known salivary gland stem cell markers CD24/CD29 did not further enrich for stem cells. The parotid gland organoid-derived stem cells displayed radiation dose-response curves similar to the submandibular gland. CONCLUSIONS Murine parotid gland organoids harbor stem cells with long-term expansion and differentiation potential. This model is useful for mechanistic studies of stem cell radiation response and suggests similar radiosensitivity for the parotid and submandibular gland organoids.
Collapse
Affiliation(s)
- Paola Serrano Martinez
- Department of Biomedical Sciences of Cells and Systems, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Davide Cinat
- Department of Biomedical Sciences of Cells and Systems, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Peter van Luijk
- Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Mirjam Baanstra
- Department of Biomedical Sciences of Cells and Systems, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Gerald de Haan
- European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Sarah Pringle
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Robert P Coppes
- Department of Biomedical Sciences of Cells and Systems, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| |
Collapse
|
5
|
Strategies for Developing Functional Secretory Epithelia from Porcine Salivary Gland Explant Outgrowth Culture Models. Biomolecules 2019; 9:biom9110657. [PMID: 31717706 DOI: 10.3390/biom9110657] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 10/21/2019] [Accepted: 10/21/2019] [Indexed: 12/15/2022] Open
Abstract
Research efforts have been made to develop human salivary gland (SG) secretory epithelia for transplantation in patients with SG hypofunction and dry mouth (xerostomia). However, the limited availability of human biopsies hinders the generation of sufficient cell numbers for epithelia formation and regeneration. Porcine SG have several similarities to their human counterparts, hence could replace human cells in SG modelling studies in vitro. Our study aims to establish porcine SG explant outgrowth models to generate functional secretory epithelia for regeneration purposes to rescue hyposalivation. Cells were isolated and expanded from porcine submandibular and parotid gland explants. Flow cytometry, immunocytochemistry, and gene arrays were performed to assess proliferation, standard mesenchymal stem cell, and putative SG epithelial stem/progenitor cell markers. Epithelial differentiation was induced and different SG-specific markers investigated. Functional assays upon neurostimulation determined α-amylase activity, trans-epithelial electrical resistance, and calcium influx. Primary cells exhibited SG epithelial progenitors and proliferation markers. After differentiation, SG markers were abundantly expressed resembling epithelial lineages (E-cadherin, Krt5, Krt14), and myoepithelial (α-smooth muscle actin) and neuronal (β3-tubulin, Chrm3) compartments. Differentiated cells from submandibular gland explant models displayed significantly greater proliferation, number of epithelial progenitors, amylase activity, and epithelial barrier function when compared to parotid gland models. Intracellular calcium was mobilized upon cholinergic and adrenergic neurostimulation. In summary, this study highlights new strategies to develop secretory epithelia from porcine SG explants, suitable for future proof-of-concept SG regeneration studies, as well as for testing novel muscarinic agonists and other biomolecules for dry mouth.
Collapse
|
6
|
Ferreira JN, Hasan R, Urkasemsin G, Ng KK, Adine C, Muthumariappan S, Souza GR. A magnetic three-dimensional levitated primary cell culture system for the development of secretory salivary gland-like organoids. J Tissue Eng Regen Med 2019; 13:495-508. [PMID: 30666813 DOI: 10.1002/term.2809] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 10/08/2018] [Accepted: 12/17/2018] [Indexed: 12/20/2022]
Abstract
Salivary gland (SG) hypofunction and oral dryness can be induced by radiotherapy for head and neck cancers or autoimmune disorders. These are common clinical conditions that involve loss of saliva-secreting epithelial cells. Several oral complications arise with SG hypofunction that interfere with routine daily activities such as chewing, swallowing, and speaking. Hence, there is a need for replacing these saliva-secreting cells. Recently, researchers have proposed to repair SG hypofunction via various cell-based approaches in three-dimensional (3D) scaffold-based systems. However, majority of the scaffolds used cannot be translated clinically due to the presence of non-human-based substrates. Herein, saliva-secreting organoids/mini-glands were developed using a new scaffold/substrate-free culture system named magnetic 3D levitation (M3DL), which assembles and levitates magnetized primary SG-derived cells (SGDCs), allowing them to produce their own extracellular matrices. Primary SGDCs were assembled in M3DL to generate SG-like organoids in well-established SG epithelial differentiation conditions for 7 days. After such culture time, these organoids consistently presented uniform spheres with greater cell viability and pro-mitotic cells, when compared with conventional salisphere cultures. Additionally, organoids formed by M3DL expressed SG-specific markers from different cellular compartments: acinar epithelial including adherens junctions (NKCC1, cholinergic muscarinic receptor type 3, E-cadherin, and EpCAM); ductal epithelial and myoepithelial (cytokeratin 14 and α-smooth muscle actin); and neuronal (β3-tubulin and vesicular acetylcholine transferase). Lastly, intracellular calcium and α-amylase activity assays showed functional organoids with SG-specific secretory activity upon cholinergic stimulation. Thus, the functional organoid produced herein indicate that this M3DL system can be a promising tool to generate SG-like mini-glands for SG secretory repair.
Collapse
Affiliation(s)
- Joao N Ferreira
- Faculty of Dentistry, Excellence Centre in Regenerative Dentistry, Chulalongkorn University, Bangkok, Thailand.,Faculty of Dentistry, Discipline of Oral and Maxillofacial Surgery, National University of Singapore, Singapore, Singapore
| | - Riasat Hasan
- Faculty of Dentistry, Discipline of Oral and Maxillofacial Surgery, National University of Singapore, Singapore, Singapore
| | - Ganokon Urkasemsin
- Faculty of Veterinary Science, Department of Preclinical and Applied Animal Science, Mahidol University, Nakhon Pathom, Thailand
| | - Kiaw K Ng
- Faculty of Dentistry, Discipline of Oral and Maxillofacial Surgery, National University of Singapore, Singapore, Singapore
| | - Christabella Adine
- Faculty of Dentistry, Discipline of Oral and Maxillofacial Surgery, National University of Singapore, Singapore, Singapore
| | - Sujatha Muthumariappan
- Faculty of Dentistry, Discipline of Oral and Maxillofacial Surgery, National University of Singapore, Singapore, Singapore
| | - Glauco R Souza
- University of Texas Health Sciences Center at Houston, Houston, TX, USA.,Nano3D Biosciences Inc., Houston, TX, USA
| |
Collapse
|
7
|
Adine C, Ng KK, Rungarunlert S, Souza GR, Ferreira JN. Engineering innervated secretory epithelial organoids by magnetic three-dimensional bioprinting for stimulating epithelial growth in salivary glands. Biomaterials 2018; 180:52-66. [PMID: 30025245 DOI: 10.1016/j.biomaterials.2018.06.011] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 06/08/2018] [Accepted: 06/09/2018] [Indexed: 12/30/2022]
Abstract
Current saliva-based stimulation therapies for radiotherapy-induced xerostomia are not fully effective due to the presence of damaged secretory epithelia and nerves in the salivary gland (SG). Hence, three-dimensional bio-engineered organoids are essential to regenerate the damaged SG. Herein, a recently validated three-dimensional (3D) biofabrication system, the magnetic 3D bioprinting (M3DB), is tested to generate innervated secretory epithelial organoids from a neural crest-derived mesenchymal stem cell, the human dental pulp stem cell (hDPSC). Cells are tagged with magnetic nanoparticles (MNP) and spatially arranged with magnet dots to generate 3D spheroids. Next, a SG epithelial differentiation stage was completed with fibroblast growth factor 10 (4-400 ng/ml) to recapitulate SG epithelial morphogenesis and neurogenesis. The SG organoids were then transplanted into ex vivo model to evaluate their epithelial growth and innervation. M3DB-formed spheroids exhibited both high cell viability rate (>90%) and stable ATP intracellular activity compared to MNP-free spheroids. After differentiation, spheroids expressed SG epithelial compartments including secretory epithelial, ductal, myoepithelial, and neuronal. Fabricated organoids also produced salivary α-amylase upon FGF10 stimulation, and intracellular calcium mobilization and trans-epithelial resistance was elicited upon neurostimulation with different neurotransmitters. After transplantation, the SG-like organoids significantly stimulated epithelial and neuronal growth in damaged SG. It is the first time bio-functional innervated SG-like organoids are bioprinted. Thus, this is an important step towards SG regeneration and the treatment of radiotherapy-induced xerostomia.
Collapse
Affiliation(s)
| | - Kiaw K Ng
- Faculty of Dentistry, National University of Singapore, Singapore.
| | - Sasitorn Rungarunlert
- Department of Preclinical and Applied Animal Science, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, 73170, Thailand.
| | - Glauco R Souza
- University of Texas Health Sciences Center at Houston, Houston, TX, USA; Nano3D Biosciences Inc., Houston, TX, USA.
| | - João N Ferreira
- Faculty of Dentistry, National University of Singapore, Singapore; Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand; National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA.
| |
Collapse
|
8
|
Morphological Study on the Correlation of Prenatal and Postnatal Development between Mouse Parotid Salivary Gland and Tooth. Appl Microsc 2017. [DOI: 10.9729/am.2017.47.4.242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
9
|
Ozdemir T, Fowler EW, Liu S, Harrington DA, Witt RL, Farach-Carson MC, Pradhan-Bhatt S, Jia X. Tuning Hydrogel Properties to Promote the Assembly of Salivary Gland Spheroids in 3D. ACS Biomater Sci Eng 2016; 2:2217-2230. [PMID: 27990487 DOI: 10.1021/acsbiomaterials.6b00419] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Current treatments for chronic xerostomia, or "dry mouth", do not offer long-term therapeutic benefits for head and neck cancer survivors previously treated with curative radiation. Towards the goal of creating tissue-engineered constructs for the restoration of salivary gland functions, we developed new hyaluronic acid (HA)-based hydrogels using thiolated HA (HA-SH) and acrylated HA (HA-AES) with a significant molecular weight mismatch. Four hydrogel formulations with varying HA concentration, (1-2.4 wt%) and thiol/acrylate ratios (2/1 to 36/1) and elastic moduli (G': 35 to 1897 Pa, 2 h post-mixing) were investigated. In our system, thiol/acrylate reaction was initiated rapidly upon mixing of HA-SH/HA-AES to establish thioether crosslinks with neighboring ester groups, and spontaneous sulfhydryl oxidation occurred slowly over several days to install a secondary network. The concurrent reactions cooperatively create a cell-permissive network to allow for cell expansion and aggregation. Multicellular spheroids formed readily from a robust ductal epithelial cell line (Madin-Darby Canine Kidney, MDCK cells) in all hydrogel formulations investigated. Primary salivary human stem/progenitor cells (hS/PCs), on the other hand, are sensitive to the synthetic extracellular environment, and organized acini-like structures with an average diameter of 50 µm were obtained only in gels with G' ≤ 216 Pa and a thiol/acrylate ratio ≥18. The spheroid size and size distribution were dependent on the HA content in the hydrogel. Cells in hS/PC spheroids formed tight junctions (occludin), remained viable and proliferative, secreted structural proteins (collagen IV and laminin) found in the basement membrane and maintained key stem/progenitor markers. We conclude that incorporation of time-dependent, dynamic features into a covalently crosslinked HA network produces an adaptable hydrogel framework that promotes hS/PC assembly and supports early aspects of salivary morphogenesis, key to reconstitution of a fully functional implantable salivary gland.
Collapse
Affiliation(s)
- Tugba Ozdemir
- Department of Materials Science and Engineering, University of Delaware, 210 South College Ave., Newark, DE 19716, USA
| | - Eric W Fowler
- Department of Materials Science and Engineering, University of Delaware, 210 South College Ave., Newark, DE 19716, USA
| | - Shuang Liu
- Department of Materials Science and Engineering, University of Delaware, 210 South College Ave., Newark, DE 19716, USA
| | - Daniel A Harrington
- Department of BioSciences, Rice University, 6100 Main St., Houston, TX 77005, USA
| | - Robert L Witt
- Department of Biological Sciences, University of Delaware, 210 South College Ave., Newark, DE, 19716, USA; Helen F. Graham Cancer Center and Research Institute, Christiana Care Health Systems, 4701 Ogletown Stanton Rd., Newark, DE, 19713, USA
| | - Mary C Farach-Carson
- Department of BioSciences, Rice University, 6100 Main St., Houston, TX 77005, USA; Department of Biological Sciences, University of Delaware, 210 South College Ave., Newark, DE, 19716, USA; Department of Bioengineering, Rice University, 6100 Main St., Houston, TX 77005, USA
| | - Swati Pradhan-Bhatt
- Department of Biological Sciences, University of Delaware, 210 South College Ave., Newark, DE, 19716, USA; Helen F. Graham Cancer Center and Research Institute, Christiana Care Health Systems, 4701 Ogletown Stanton Rd., Newark, DE, 19713, USA; Department of Biomedical Engineering, University of Delaware, 210 South College Ave., Newark, DE 19716, USA
| | - Xinqiao Jia
- Department of Materials Science and Engineering, University of Delaware, 210 South College Ave., Newark, DE 19716, USA; Department of Biological Sciences, University of Delaware, 210 South College Ave., Newark, DE, 19716, USA; Department of Biomedical Engineering, University of Delaware, 210 South College Ave., Newark, DE 19716, USA
| |
Collapse
|
10
|
Nam K, Jones JP, Lei P, Andreadis ST, Baker OJ. Laminin-111 Peptides Conjugated to Fibrin Hydrogels Promote Formation of Lumen Containing Parotid Gland Cell Clusters. Biomacromolecules 2016; 17:2293-301. [PMID: 27151393 PMCID: PMC5029268 DOI: 10.1021/acs.biomac.6b00588] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Previous studies showed that mouse submandibular gland cells form three-dimensional structures when grown on Laminin-111 gels. The use of Laminin-111 for tissue bioengineering is complicated due to its lack of purity. By contrast, the use of synthetic peptides derived from Laminin-111 is beneficial due to their high purity and easy manipulation. Two Laminin-111 peptides have been identified for salivary cells: the A99 peptide corresponding to the α1 chain from Laminin-111 and the YIGSR peptide corresponding to the β1 chain from Laminin-111, which are important for cell adhesion and migration. We created three-dimensional salivary cell clusters using a modified fibrin hydrogel matrix containing immobilized Laminin-111 peptides. Results indicate that the YIGSR peptide improved morphology and lumen formation in rat parotid Par-C10 cells as compared to cells grown on unmodified fibrin hydrogel. Moreover, a combination of both peptides not only allowed the formation of functional three-dimensional salivary cell clusters but also increased attachment and number of cell clusters. In summary, we demonstrated that fibrin hydrogel decorated with Laminin-111 peptides supports attachment and differentiation of salivary gland cell clusters with mature lumens.
Collapse
Affiliation(s)
- Kihoon Nam
- School of Dentistry, The University of Utah, Salt Lake City, Utah 84108, United States
| | - Joshua P. Jones
- Department of Bioengineering, The University of Utah, Salt Lake City, Utah 84108, United States
| | - Pedro Lei
- Department of Chemical and Biological Engineering, School of Engineering and Applied Sciences, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Stelios T. Andreadis
- Department of Chemical and Biological Engineering, School of Engineering and Applied Sciences, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
- Department of Biomedical Engineering, School of Engineering and Applied Sciences, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
- Center of Bioinformatics and Life Sciences, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Olga J. Baker
- School of Dentistry, The University of Utah, Salt Lake City, Utah 84108, United States
| |
Collapse
|
11
|
Baker OJ. Current trends in salivary gland tight junctions. Tissue Barriers 2016; 4:e1162348. [PMID: 27583188 DOI: 10.1080/21688370.2016.1162348] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 02/28/2016] [Accepted: 03/01/2016] [Indexed: 12/21/2022] Open
Abstract
Tight junctions form a continuous intercellular barrier between epithelial cells that is required to separate tissue spaces and regulate selective movement of solutes across the epithelium. They are composed of strands containing integral membrane proteins (e.g., claudins, occludin and tricellulin, junctional adhesion molecules and the coxsackie adenovirus receptor). These proteins are anchored to the cytoskeleton via scaffolding proteins such as ZO-1 and ZO-2. In salivary glands, tight junctions are involved in polarized saliva secretion and barrier maintenance between the extracellular environment and the glandular lumen. This review seeks to provide an overview of what is currently known, as well as the major questions and future research directions, regarding tight junction expression, organization and function within salivary glands.
Collapse
Affiliation(s)
- Olga J Baker
- School of Dentistry, University of Utah , Salt Lake City, UT, USA
| |
Collapse
|
12
|
Hegyesi O, Földes A, Bori E, Németh Z, Barabás J, Steward MC, Varga G. Evidence for Active Electrolyte Transport by Two-Dimensional Monolayers of Human Salivary Epithelial Cells. Tissue Eng Part C Methods 2015. [PMID: 26200762 DOI: 10.1089/ten.tec.2014.0614] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Functional reconstruction of lost tissue by regenerative therapy of salivary glands would be of immense benefit following radiotherapy or in the treatment of Sjogren's syndrome. The purpose of this study was to develop primary cultures of human salivary gland cells as potential regenerative resources and to characterize their acinar/ductal phenotype using electrophysiological measurements of ion transport. Human salivary gland cultures were prepared either from adherent submandibular gland cells (huSMG) or from mixed adherent and nonadherent cells (PTHSG) and were cultivated in Hepato-STIM or minimum essential medium (MEM). Expression of key epithelial marker proteins was determined by quantitative reverse transcription polymerase chain reaction (RT-PCR). Transepithelial electrical resistance (TER) was monitored following seeding the cells on Transwell membranes. Transepithelial ion transport was estimated by short-circuit current (Isc) measurements in an Ussing chamber. Both huSMG and PTHSG cells showed epithelial characteristics when cultivated in Hepato-STIM, while fibroblast-like elements dominated in MEM. Compared to intact tissue, cultivation of the cells resulted in substantial decreases in AQP5 and NKCC1 expression and moderate increases in claudin-1 and ENaC expression. Both cultures achieved high TER and transepithelial electrolyte movement in Hepato-STIM, but not in MEM. The Isc was substantially reduced by basolateral Cl(-) and bicarbonate withdrawal, indicating the involvement of basolateral-to-apical anion transport, and by the blockade of apical ENaC by amiloride, indicating the involvement of apical-to-basolateral Na(+) transport. An almost complete inhibition was observed following simultaneous ENaC block and withdrawal of the two anions. Isc was enhanced by either apical adenosine triphosphate (ATP) or basolateral carbachol application, but not by forskolin, confirming the expected role of Ca(2+)-activated regulatory pathways in electrolyte secretion. Inhibition of basolateral NKCC1 by bumetanide reduced the response to ATP, indicating the active involvement of this transporter in Cl(-) secretion. In conclusion, we have demonstrated that both PTHSG and huSMG primary cultures cultivated in Hepato-STIM form two-dimensional monolayers in vitro on permeable supports and achieve active vectorial transepithelial electrolyte transport. The presence of both basolateral-to-apical anion fluxes and an apical-to-basolateral Na(+) flux indicates both acinar and ductal characteristics. With further refinement, this model should provide a firm basis for new interventions to correct salivary gland dysfunction.
Collapse
Affiliation(s)
- Orsolya Hegyesi
- 1 Department of Oral Biology, Semmelweis University , Budapest, Hungary
| | - Anna Földes
- 1 Department of Oral Biology, Semmelweis University , Budapest, Hungary
| | - Erzsébet Bori
- 1 Department of Oral Biology, Semmelweis University , Budapest, Hungary
| | - Zsolt Németh
- 2 Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University , Budapest, Hungary
| | - József Barabás
- 2 Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University , Budapest, Hungary
| | - Martin C Steward
- 3 Faculty of Life Sciences, University of Manchester , Manchester, United Kingdom
| | - Gábor Varga
- 1 Department of Oral Biology, Semmelweis University , Budapest, Hungary
| |
Collapse
|
13
|
Maruyama CLM, Leigh NJ, Nelson JW, McCall AD, Mellas RE, Lei P, Andreadis ST, Baker OJ. Stem Cell-Soluble Signals Enhance Multilumen Formation in SMG Cell Clusters. J Dent Res 2015; 94:1610-7. [PMID: 26285810 DOI: 10.1177/0022034515600157] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Saliva plays a major role in maintaining oral health. Patients with salivary hypofunction exhibit difficulty in chewing and swallowing foods, tooth decay, periodontal disease, and microbial infections. At this time, treatments for hyposalivation are limited to medications (e.g., muscarinic receptor agonists: pilocarpine and cevimeline) that induce saliva secretion from residual acinar cells as well as artificial salivary substitutes. Therefore, advancement of restorative treatments is necessary to improve the quality of life in these patients. Our previous studies indicated that salivary cells are able to form polarized 3-dimensional structures when grown on growth factor-reduced Matrigel. This basement membrane is rich in laminin-III (L1), which plays a critical role in salivary gland formation. Mitotically inactive feeder layers have been used previously to support the growth of many different cell types, as they provide factors necessary for cell growth and organization. The goal of this study was to improve salivary gland cell differentiation in primary cultures by using a combination of L1 and a feeder layer of human hair follicle-derived mesenchymal stem cells (hHF-MSCs). Our results indicated that the direct contact of mouse submandibular (mSMG) cell clusters and hHF-MSCs was not required for mSMG cells to form acinar and ductal structures. However, the hHF-MSC conditioned medium enhanced cell organization and multilumen formation, indicating that soluble signals secreted by hHF-MSCs play a role in promoting these features.
Collapse
Affiliation(s)
- C L M Maruyama
- School of Dentistry, University of Utah, Salt Lake City, UT, USA
| | - N J Leigh
- School of Dentistry, University of Utah, Salt Lake City, UT, USA
| | - J W Nelson
- School of Dentistry, University of Utah, Salt Lake City, UT, USA
| | - A D McCall
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - R E Mellas
- School of Dentistry, University of Utah, Salt Lake City, UT, USA
| | - P Lei
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - S T Andreadis
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY, USA Department of Biomedical Engineering, School of Engineering and Applied Sciences, University at Buffalo, The State University of New York, Buffalo, NY, USA Center of Bioinformatics and Life Sciences, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - O J Baker
- School of Dentistry, University of Utah, Salt Lake City, UT, USA
| |
Collapse
|