1
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Flores-Torres S, Dimitriou NM, Pardo LA, Kort-Mascort J, Pal S, Peza-Chavez O, Kuasne H, Berube J, Bertos N, Park M, Mitsis GD, Ferri L, Sangwan V, Kinsella JM. Bioprinted Multicomponent Hydrogel Co-culture Tumor-Immune Model for Assessing and Simulating Tumor-Infiltrated Lymphocyte Migration and Functional Activation. ACS Appl Mater Interfaces 2023. [PMID: 37404007 DOI: 10.1021/acsami.3c02995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
The immune response against a tumor is characterized by the interplay among components of the immune system and neoplastic cells. Here, we bioprinted a model with two distinct regions containing gastric cancer patient-derived organoids (PDOs) and tumor-infiltrated lymphocytes (TILs). The initial cellular distribution allows for the longitudinal study of TIL migratory patterns concurrently with multiplexed cytokine analysis. The chemical properties of the bioink were designed to present physical barriers that immune T-cells must breech during infiltration and migration toward a tumor with the use of an alginate, gelatin, and basal membrane mix. TIL activity, degranulation, and regulation of proteolytic activity reveal insights into the time-dependent biochemical dynamics. Regulation of the sFas and sFas-ligand present on PDOs and TILs, respectively, and the perforin and granzyme longitudinal secretion confirms TIL activation when encountering PDO formations. TIL migratory profiles were used to create a deterministic reaction-advection diffusion model. The simulation provides insights that decouple passive from active cell migration mechanisms. The mechanisms used by TILs and other adoptive cell therapeutics as they infiltrate the tumor barrier are poorly understood. This study presents a pre-screening strategy for immune cells where motility and activation across ECM environments are crucial indicators of cellular fitness.
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Affiliation(s)
| | - Nikolaos M Dimitriou
- Department of Bioengineering, McGill University, Montreal H3A 0G4, Quebec, Canada
| | - Lucas Antonio Pardo
- Department of Bioengineering, McGill University, Montreal H3A 0G4, Quebec, Canada
| | | | - Sanjima Pal
- Department of Surgery, McGill University, Montreal H3A 0G4, Quebec, Canada
| | - Omar Peza-Chavez
- Department of Bioengineering, McGill University, Montreal H3A 0G4, Quebec, Canada
| | - Hellen Kuasne
- Rosalind and Morris Goodman Cancer Institute, McGill University, Montreal H3A 0G4, Quebec, Canada
| | - Julie Berube
- Department of Surgery, McGill University, Montreal H3A 0G4, Quebec, Canada
| | - Nicholas Bertos
- Research Institute of the McGill University Health Centre (RI-MUHC), Montreal H3G 2M1, Quebec, Canada
| | - Morag Park
- Department of Biochemistry, McGill University, Montreal H3A 0G4, Quebec, Canada
- Department of Medicine, McGill University, Montreal H3A 0G4, Quebec, Canada
- Department of Oncology, McGill University, Montreal H3A 0G4, Quebec, Canada
- Department of Pathology, McGill University, Montreal H3A 0G4, Quebec, Canada
| | - Georgios D Mitsis
- Department of Bioengineering, McGill University, Montreal H3A 0G4, Quebec, Canada
| | - Lorenzo Ferri
- Department of Surgery, McGill University, Montreal H3A 0G4, Quebec, Canada
- Research Institute of the McGill University Health Centre (RI-MUHC), Montreal H3G 2M1, Quebec, Canada
| | - Veena Sangwan
- Rosalind and Morris Goodman Cancer Institute, McGill University, Montreal H3A 0G4, Quebec, Canada
| | - Joseph M Kinsella
- Department of Bioengineering, McGill University, Montreal H3A 0G4, Quebec, Canada
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2
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Heidari Nia M, Wilson LD, Reza Kiasat A, Munguia-Lopez JG, Kinsella JM, van de Ven TGM. Internally bridged nanosilica for loadings and release of sparsely soluble compounds. J Colloid Interface Sci 2023; 649:456-470. [PMID: 37354802 DOI: 10.1016/j.jcis.2023.06.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 06/13/2023] [Accepted: 06/17/2023] [Indexed: 06/26/2023]
Abstract
The engineering of a new monodisperse colloid with a sea urchin-like structure with a large complex internal structure is reported, in which silica surfaces are bridged by an aromatic organic cross-linker to serve as a nanocarrier host for drugs such as doxorubicin (DOX) against breast cancer cells. While dendritic fibrous nanosilica (DFNS) was employed and we do not observe a dendritic structure, these particles are referred to as sea urchin-like nanostructured silica (SNS). Since the structure of SNS consists of many silica fibrils protruding from the core, similar to the hairs of a sea urchin. For the aromatic structured cross-linker, bis(propyliminomethyl)benzene (b(PIM)B-S or silanated terephtaldehyde) were employed, which are prepared with terephtaldehyde and 3-aminopropyltriethoxy-silane (APTES) through a simple Schiff base reaction. b(PIM)B-S bridges were introduced into SNS under open vessel reflux conditions. SPS refers to the product obtained by incorporating the cross-linker b(PIM)B-S in ultra-small colloidal SNS particles. In-situ incorporation of DOX molecules resulted in SPS-DOX. The pH-responsive SPS nanocomposites were tested as biocompatible nanocarriers for controllable doxorubicin (DOX) delivery. We conclude that SPS is a unique colloid which has promising potential for technological applications such as advanced drug delivery systems, wastewater remediation and as a catalyst for green organic reactions in water.
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Affiliation(s)
- Marzieh Heidari Nia
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Room 165 Thorvaldson Building, Saskatoon, SK S7N 5C9, Canada; Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8, Canada; Quebec Centre for Advanced Materials (QCAM) and Pulp and Paper Research Centre, McGill University, 3420 University Street, Montreal, QC H3A 2A7, Canada; Department of Chemistry, College of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Lee D Wilson
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Room 165 Thorvaldson Building, Saskatoon, SK S7N 5C9, Canada.
| | - Ali Reza Kiasat
- Department of Chemistry, College of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Jose G Munguia-Lopez
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; Department of Bioengineering, McGill University, 3480 University Street, Montreal, QC H3A 0E9, Canada.
| | - Joseph M Kinsella
- Department of Bioengineering, McGill University, 3480 University Street, Montreal, QC H3A 0E9, Canada.
| | - Theo G M van de Ven
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8, Canada; Quebec Centre for Advanced Materials (QCAM) and Pulp and Paper Research Centre, McGill University, 3420 University Street, Montreal, QC H3A 2A7, Canada.
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3
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Kort-Mascort J, Shen ML, Martin E, Flores-Torres S, Pardo LA, Siegel PM, Tran SD, Kinsella JM. Bioprinted cancer-stromal in-vitro models in a decellularized ECM-based bioink exhibit progressive remodeling and maturation. Biomed Mater 2023. [PMID: 37220760 DOI: 10.1088/1748-605x/acd830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Continuous extracellular matrix (ECM) remodeling and cellular heterogeneity are key contributors to cancer development and can both profoundly affect treatment efficacy. Developing in-vitro models that recapitulate matrix and cellular heterogeneity of the tumor microenvironment (TME) can aid in observations that are currently challenging to acquire with conventional 2D cultures and preclinical animal models. Here we report an extrusion bioprinted co-culture model of head and neck cancer and stromal fibroblasts using a composite bioink containing a reinforced decellularized extracellular matrix hydrogel. Fibroblasts have a significant role in remodeling and matrix deposition. When cultured in the bioactive extracellular matrix ink, they provide the cellular elements typically found in the tumor stroma. Head and neck squamous carcinoma cells (UM-SCC-38) were integrated into the bioink, and in the presence of fibroblasts (HVFFs), they began to proliferate into cell-cell interactive spheroids. As the co-culture model is capable of remodeling, we evaluated the ultrastructure of the bioink. We observed a fibrous collagenous network retained from the ECM of the source tissue containing nanometer-scale pores. Following the deposition of the co-culture model, we observed UM-SCC-38 spheroid formation that began during the first week in culture and continued over a three-week period in which the fibroblasts migrated to regions directly surrounding each spheroid. Using a Luminex assay to quantify matrix metalloproteases in co-cultures compared to monocultures, we observed significant differences in the presence of MMP-9 and MMP-10 expression corresponding to periods of the culture in which collagen underwent remodeling. Time-dependent characterization of collagen synthesis, protease activity, and spheroid growth rates are developed to characterize the system as an advanced co-culture model to evaluate tumor-stromal interactions and remodeling.
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Affiliation(s)
- Jacqueline Kort-Mascort
- Department of Bioengineering, McGill University, 3480 University Street, Room 350, Montreal, Quebec, H3A 0E9, CANADA
| | - Molly L Shen
- Department of Biomedical Engineering, McGill University, Duff Building, Montreal, Quebec, H3A 0C3, CANADA
| | - Emma Martin
- Department of Bioengineering, McGill University, McConnell Engineering Building, Room 545, 815 Sherbrooke Street West, Montreal, Quebec, H3A 0C3, CANADA
| | - Salvador Flores-Torres
- Department of Bioengineering, McGill University, 3480 University Street, Room 350, Montreal, Quebec, H3A 0E9, CANADA
| | - Lucas Antonio Pardo
- Department of Bioengineering, McGill University, McConnell Engineering Building, Room 545, 815 Sherbrooke Street West, Montreal, Quebec, H3A 0C3, CANADA
| | - Peter M Siegel
- McGill University, 1160 Pine Avenue West, Montreal, Quebec, H3A 1A3, CANADA
| | - Simon D Tran
- Faculty of Dentistry, McGill University, 3640 University Street, Montreal, Quebec, H3A 0C7, CANADA
| | - Joseph M Kinsella
- Department of Bioengineering, McGill University, McConnell Engineering Building, Room 545, 815 Sherbrooke Street West, Montreal, Quebec, H3A 0C3, CANADA
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4
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Flores-Torres S, Jiang T, Kort-Mascort J, Yang Y, Peza-Chavez O, Pal S, Mainolfi A, Pardo LA, Ferri L, Bertos N, Sangwan V, Kinsella JM. Constructing 3D In Vitro Models of Heterocellular Solid Tumors and Stromal Tissues Using Extrusion-Based Bioprinting. ACS Biomater Sci Eng 2023; 9:542-561. [PMID: 36598339 DOI: 10.1021/acsbiomaterials.2c00998] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Malignant tumor tissues exhibit inter- and intratumoral heterogeneities, aberrant development, dynamic stromal composition, diverse tissue phenotypes, and cell populations growing within localized mechanical stresses in hypoxic conditions. Experimental tumor models employing engineered systems that isolate and study these complex variables using in vitro techniques are under development as complementary methods to preclinical in vivo models. Here, advances in extrusion bioprinting as an enabling technology to recreate the three-dimensional tumor milieu and its complex heterogeneous characteristics are reviewed. Extrusion bioprinting allows for the deposition of multiple materials, or selected cell types and concentrations, into models based upon physiological features of the tumor. This affords the creation of complex samples with representative extracellular or stromal compositions that replicate the biology of patient tissue. Biomaterial engineering of printable materials that replicate specific features of the tumor microenvironment offer experimental reproducibility, throughput, and physiological relevance compared to animal models. In this review, we describe the potential of extrusion-based bioprinting to recreate the tumor microenvironment within in vitro models.
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Affiliation(s)
| | - Tao Jiang
- Department of Intelligent Machinery and Instrument, College of Intelligence Science and Technology, National University of Defense Technology Changsha, Hunan 410073, China
| | | | - Yun Yang
- Department of Intelligent Machinery and Instrument, College of Intelligence Science and Technology, National University of Defense Technology Changsha, Hunan 410073, China
| | - Omar Peza-Chavez
- Department of Bioengineering, McGill University, Montreal, Quebec H3A 0G4, Canada
| | - Sanjima Pal
- Department of Surgery, McGill University, Montreal, Quebec H3G 2M1, Canada
| | - Alisia Mainolfi
- Department of Bioengineering, McGill University, Montreal, Quebec H3A 0G4, Canada
| | - Lucas Antonio Pardo
- Department of Bioengineering, McGill University, Montreal, Quebec H3A 0G4, Canada
| | - Lorenzo Ferri
- Department of Surgery, McGill University, Montreal, Quebec H3G 2M1, Canada.,Department of Medicine, McGill University, Montreal, Quebec H3G 2M1, Canada
| | - Nicholas Bertos
- Research Institute of the McGill University Health Centre (RI-MUHC), Montreal, Quebec H4A 3J1, Canada
| | - Veena Sangwan
- Department of Surgery, McGill University, Montreal, Quebec H3G 2M1, Canada
| | - Joseph M Kinsella
- Department of Bioengineering, McGill University, Montreal, Quebec H3A 0G4, Canada
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5
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Munguia-Lopez JG, Jiang T, Ferlatte A, Fajardo-Diaz JL, Munoz-Sandoval E, Tran SD, Kinsella JM. Highly Concentrated Nitrogen‐Doped Carbon Nanotubes in Alginate–Gelatin 3D Hydrogels Enable in Vitro Breast Cancer Spheroid Formation. Advanced NanoBiomed Research 2021. [DOI: 10.1002/anbr.202100104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Jose G. Munguia-Lopez
- Faculty of Dentistry McGill University Montreal Quebec H3A 0C7 Canada
- Department of Bioengineering McGill University Montreal Quebec H3A 0E9 Canada
| | - Tao Jiang
- Department of Intelligent Machinery and Instrument College of Intelligence Science and Technology National University of Defense Technology Changsha Human 410073 China
| | - Audrey Ferlatte
- Department of Bioengineering McGill University Montreal Quebec H3A 0E9 Canada
| | - Juan L. Fajardo-Diaz
- Advanced Materials Department Instituto Potosino de Investigación Científica y Tecnológica, A.C. (IPICyT) San Luis Potosi San Luis Potosi 78216 Mexico
- Global Aqua Innovation Center and Research Initiative for Supra-Materials Shinshu University 4-17-1 Wakasato Nagano 380-8553 Japan
| | - Emilio Munoz-Sandoval
- Advanced Materials Department Instituto Potosino de Investigación Científica y Tecnológica, A.C. (IPICyT) San Luis Potosi San Luis Potosi 78216 Mexico
| | - Simon D. Tran
- Faculty of Dentistry McGill University Montreal Quebec H3A 0C7 Canada
| | - Joseph M. Kinsella
- Department of Bioengineering McGill University Montreal Quebec H3A 0E9 Canada
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6
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Kort-Mascort J, Bao G, Elkashty O, Flores-Torres S, Munguia-Lopez JG, Jiang T, Ehrlicher AJ, Mongeau L, Tran SD, Kinsella JM. Decellularized Extracellular Matrix Composite Hydrogel Bioinks for the Development of 3D Bioprinted Head and Neck in Vitro Tumor Models. ACS Biomater Sci Eng 2021; 7:5288-5300. [PMID: 34661396 DOI: 10.1021/acsbiomaterials.1c00812] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Reinforced extracellular matrix (ECM)-based hydrogels recapitulate several mechanical and biochemical features found in the tumor microenvironment (TME) in vivo. While these gels retain several critical structural and bioactive molecules that promote cell-matrix interactivity, their mechanical properties tend toward the viscous regime limiting their ability to retain ordered structural characteristics when considered as architectured scaffolds. To overcome this limitation characteristic of pure ECM hydrogels, we present a composite material containing alginate, a seaweed-derived polysaccharide, and gelatin, denatured collagen, as rheological modifiers which impart mechanical integrity to the biologically active decellularized ECM (dECM). After an optimization process, the reinforced gel proposed is mechanically stable and bioprintable and has a stiffness within the expected physiological values. Our hydrogel's elastic modulus has no significant difference when compared to tumors induced in preclinical xenograft head and neck squamous cell carcinoma (HNSCC) mouse models. The bioprinted cell-laden model is highly reproducible and allows proliferation and reorganization of HNSCC cells while maintaining cell viability above 90% for periods of nearly 3 weeks. Cells encapsulated in our bioink produce spheroids of at least 3000 μm2 of cross-sectional area by day 15 of culture and are positive for cytokeratin in immunofluorescence quantification, a common marker of HNSCC model validation in 2D and 3D models. We use this in vitro model system to evaluate the standard-of-care small molecule therapeutics used to treat HNSCC clinically and report a 4-fold increase in the IC50 of cisplatin and an 80-fold increase for 5-fluorouracil compared to monolayer cultures. Our work suggests that fabricating in vitro models using reinforced dECM provides a physiologically relevant system to evaluate malignant neoplastic phenomena in vitro due to the physical and biological features replicated from the source tissue microenvironment.
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Affiliation(s)
- Jacqueline Kort-Mascort
- Department of Bioengineering, McGill University, McConnell Engineering Building, 3480 University, Room 350, Montreal, Quebec H3A 0E9, Canada
| | - Guangyu Bao
- Department of Mechanical Engineering, McGill University, Macdonald Engineering Building, Room 270, 817 Sherbrooke Street West, Montreal, Quebec H3A 0C3, Canada
| | - Osama Elkashty
- Faculty of Dentistry, McGill University, 3640 rue University, Montreal, Quebec H3A 0C7, Canada.,Oral Pathology Department, Faculty of Dentistry, Mansoura University, Mansoura 29R6+Q3F, Egypt
| | - Salvador Flores-Torres
- Department of Bioengineering, McGill University, McConnell Engineering Building, 3480 University, Room 350, Montreal, Quebec H3A 0E9, Canada
| | - Jose G Munguia-Lopez
- Department of Bioengineering, McGill University, McConnell Engineering Building, 3480 University, Room 350, Montreal, Quebec H3A 0E9, Canada.,Faculty of Dentistry, McGill University, 3640 rue University, Montreal, Quebec H3A 0C7, Canada
| | - Tao Jiang
- Department of Intelligent Machinery and Instrument, College of Intelligence Science and Technology, National University of Defense Technology Changsha, No. 109 Deya Road, Kaifu District, Changsha, Hunan 410073, China
| | - Allen J Ehrlicher
- Department of Bioengineering, McGill University, McConnell Engineering Building, 3480 University, Room 350, Montreal, Quebec H3A 0E9, Canada.,Department of Mechanical Engineering, McGill University, Macdonald Engineering Building, Room 270, 817 Sherbrooke Street West, Montreal, Quebec H3A 0C3, Canada
| | - Luc Mongeau
- Department of Mechanical Engineering, McGill University, Macdonald Engineering Building, Room 270, 817 Sherbrooke Street West, Montreal, Quebec H3A 0C3, Canada
| | - Simon D Tran
- Faculty of Dentistry, McGill University, 3640 rue University, Montreal, Quebec H3A 0C7, Canada
| | - Joseph M Kinsella
- Department of Bioengineering, McGill University, McConnell Engineering Building, 3480 University, Room 350, Montreal, Quebec H3A 0E9, Canada
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7
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Heidari Nia M, Koshani R, Munguia-Lopez JG, Kiasat AR, Kinsella JM, van de Ven TGM. Biotemplated Hollow Mesoporous Silica Particles as Efficient Carriers for Drug Delivery. ACS Appl Bio Mater 2021; 4:4201-4214. [PMID: 35006833 DOI: 10.1021/acsabm.0c01671] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
We designed three types of hollow-shaped porous silica materials via a three-step biotemplate-directed method: porous hollow silica nanorods, hollow dendritic fibrous nanostructured silica (DFNS), and ultraporous sponge-like DFNS. The first step was making a biotemplate, for which we used cellulose nanocrystals (CNCs), consisting of rod-shaped nanoparticles synthesized by conventional acid hydrolysis of cellulose fibers. In a second step, core-shell samples were prepared using CNC particles as hard template by two procedures. In the first one, core-shell CNC-silica nanoparticles were synthesized by a polycondensation reaction, which exclusively took place at the surface of the CNCs. In the second procedure, a typical synthesis of DFNS was conducted in a bicontinuous microemulsion with the assistance of additives. DFNS was assembled on the surface of the CNCs, giving rise to core-shell CNC-DFNS structures. Finally, all of the silica-coated CNC composites were calcined, during which the CNC was removed from the core and hollow structures were formed. These materials are very lightweight and highly porous. All three structures were tested as nanocarriers for drug delivery and absorbents for dye removal applications. Dye removal results showed that they can adsorb methylene blue efficiently, with ultraporous sponge-like DFNS showing the highest adsorption capacity, followed by hollow DFNS and hollow silica nanorods. Furthermore, breast cancer cells show a lower cell viability when exposed to doxorubicin-loaded hollow silica nanorods compared with control or doxorubicin cultures, suggesting that the loaded nanorod has a greater anticancer effect than free doxorubicin.
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Affiliation(s)
- Marzieh Heidari Nia
- Department of Chemistry, College of Science, Shahid Chamran University of Ahvaz, Ahvaz 6135783151, Iran.,Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada.,Quebec Centre for Advanced Materials (QCAM) and Pulp and Paper Research Centre, McGill University, 3420 University Street, Montreal, Quebec H3A 2A7, Canada
| | - Roya Koshani
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada.,Quebec Centre for Advanced Materials (QCAM) and Pulp and Paper Research Centre, McGill University, 3420 University Street, Montreal, Quebec H3A 2A7, Canada
| | - Jose G Munguia-Lopez
- Faculty of Dentistry, McGill University, 3640 University Street, Montreal, Quebec H3A 0C7, Canada.,Department of Bioengineering, McGill University, 3480 University Street, Montreal, Quebec H3A 0E9, Canada
| | - Ali Reza Kiasat
- Department of Chemistry, College of Science, Shahid Chamran University of Ahvaz, Ahvaz 6135783151, Iran
| | - Joseph M Kinsella
- Department of Bioengineering, McGill University, 3480 University Street, Montreal, Quebec H3A 0E9, Canada
| | - Theo G M van de Ven
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada.,Quebec Centre for Advanced Materials (QCAM) and Pulp and Paper Research Centre, McGill University, 3420 University Street, Montreal, Quebec H3A 2A7, Canada
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8
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Flores-Torres S, Peza-Chavez O, Kuasne H, Munguia-Lopez JG, Kort-Mascort J, Ferri L, Jiang T, Rajadurai CV, Park M, Sangwan V, Kinsella JM. Alginate-gelatin-Matrigel hydrogels enable the development and multigenerational passaging of patient-derived 3D bioprinted cancer spheroid models. Biofabrication 2021; 13. [PMID: 33440351 DOI: 10.1088/1758-5090/abdb87] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 01/13/2021] [Indexed: 12/20/2022]
Abstract
Hydrogels consisting of controlled fractions of alginate, gelatin, and Matrigel enable the development of patient-derived bioprinted tissue models that support cancer spheroid growth and expansion. These engineered models can be dissociated to be then reintroduced to new hydrogel solutions and subsequently reprinted to generate multigenerational models. The process of harvesting cells from 3D bioprinted models is possible by chelating the ions that crosslink alginate, causing the gel to weaken. Inclusion of the gelatin and Matrigel fractions to the hydrogel increases the bioactivity by providing cell-matrix binding sites and promoting cross-talk between cancer cells and their microenvironment. Here we show that immortalized triple-negative breast cancer cells (MDA-MB-231) and patient-derived gastric adenocarcinoma cells can be reprinted for at least three 21 d culture cycles following bioprinting in the alginate/gelatin/Matrigel hydrogels. Our drug testing results suggest that our 3D bioprinted model can also be used to recapitulatein vivopatient drug response. Furthermore, our results show that iterative bioprinting techniques coupled with alginate biomaterials can be used to maintain and expand patient-derived cancer spheroid cultures for extended periods without compromising cell viability, altering division rates, or disrupting cancer spheroid formation.
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Affiliation(s)
| | - Omar Peza-Chavez
- Department of Bioengineering, McGill University, Montreal, Quebec, Canada
| | - Hellen Kuasne
- Rosalind and Morris Goodman Cancer Centre, McGill University, Montreal, Quebec, Canada
| | - Jose G Munguia-Lopez
- Department of Bioengineering, McGill University, Montreal, Quebec, Canada.,Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
| | | | - Lorenzo Ferri
- Department of Surgery, McGill University, Montreal, Quebec, Canada.,Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Tao Jiang
- Department of Intelligent Machinery and Instrument, College of Intelligence Science and Technology, National University of Defense Technology, Changsha, Hunan, People's Republic of China
| | - Charles V Rajadurai
- Rosalind and Morris Goodman Cancer Centre, McGill University, Montreal, Quebec, Canada.,Department of Biochemistry, McGill University, Montreal, Quebec, Canada
| | - Morag Park
- Rosalind and Morris Goodman Cancer Centre, McGill University, Montreal, Quebec, Canada.,Department of Biochemistry, McGill University, Montreal, Quebec, Canada.,Department of Medicine, McGill University, Montreal, Quebec, Canada.,Department of Oncology, McGill University, Montreal, Quebec, Canada.,Department of Pathology, McGill University, Montreal, Quebec, Canada
| | - Veena Sangwan
- Department of Surgery, McGill University, Montreal, Quebec, Canada
| | - Joseph M Kinsella
- Department of Bioengineering, McGill University, Montreal, Quebec, Canada
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9
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Zhang Y, Pham HM, Munguia-Lopez JG, Kinsella JM, Tran SD. The Optimization of a Novel Hydrogel-Egg White-Alginate for 2.5D Tissue Engineering of Salivary Spheroid-Like Structure. Molecules 2020; 25:E5751. [PMID: 33291221 PMCID: PMC7730374 DOI: 10.3390/molecules25235751] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/03/2020] [Accepted: 12/04/2020] [Indexed: 11/24/2022] Open
Abstract
Hydrogels have been used for a variety of biomedical applications; in tissue engineering, they are commonly used as scaffolds to cultivate cells in a three-dimensional (3D) environment allowing the formation of organoids or cellular spheroids. Egg white-alginate (EWA) is a novel hydrogel which combines the advantages of both egg white and alginate; the egg white material provides extracellular matrix (ECM)-like proteins that can mimic the ECM microenvironment, while alginate can be tuned mechanically through its ionic crosslinking property to modify the scaffold's porosity, strength, and stiffness. In this study, a frozen calcium chloride (CaCl2) disk technique to homogenously crosslink alginate and egg white hydrogel is presented for 2.5D culture of human salivary cells. Different EWA formulations were prepared and biologically evaluated as a spheroid-like structure platform. Although all five EWA hydrogels showed biocompatibility, the EWA with 1.5% alginate presented the highest cell viability, while EWA with 3% alginate promoted the formation of larger size salivary spheroid-like structures. Our EWA hydrogel has the potential to be an alternative 3D culture scaffold that can be used for studies on drug-screening, cell migration, or as an in vitro disease model. In addition, EWA can be used as a potential source for cell transplantation (i.e., using this platform as an ex vivo environment for cell expansion). The low cost of producing EWA is an added advantage.
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Affiliation(s)
- Yuli Zhang
- Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (Y.Z.); (H.M.P.); (J.G.M.-L.)
| | - Hieu M. Pham
- Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (Y.Z.); (H.M.P.); (J.G.M.-L.)
| | - Jose G. Munguia-Lopez
- Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (Y.Z.); (H.M.P.); (J.G.M.-L.)
- Department of Bioengineering, McGill University, 3480 University Street, Montreal, QC H3A 0E9, Canada;
| | - Joseph M. Kinsella
- Department of Bioengineering, McGill University, 3480 University Street, Montreal, QC H3A 0E9, Canada;
| | - Simon D. Tran
- Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada; (Y.Z.); (H.M.P.); (J.G.M.-L.)
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10
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Tavakolian M, Munguia-Lopez JG, Valiei A, Islam MS, Kinsella JM, Tufenkji N, van de Ven TGM. Highly Absorbent Antibacterial and Biofilm-Disrupting Hydrogels from Cellulose for Wound Dressing Applications. ACS Appl Mater Interfaces 2020; 12:39991-40001. [PMID: 32794770 DOI: 10.1021/acsami.0c08784] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this study, a carboxyl-modified cellulosic hydrogel was developed as the base material for wound dressings. ε-poly-l-lysine, a natural polyamide, was then covalently linked to the hydrogel through a bioconjugation reaction, which was confirmed by X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR). The antibacterial efficacy of the hydrogel was tested against two model bacteria, Staphylococcus aureus and Pseudomonas aeruginosa, two of the most commonly found bacteria in wound infections. Bacterial viability and biofilm formation after exposure of bacteria to the hydrogels were used as efficacy indicators. Live/Dead assay was used to measure the number of compromised bacteria using a confocal laser scanning microscope. The results show that the antibacterial hydrogel was able to kill approximately 99% of the exposed bacteria after 3 h of exposure. In addition, NIH/3T3 fibroblasts were used to study the biocompatibility of the developed hydrogels. Water-soluble tetrazolium salt (WST)-1 assay was used to measure the metabolic activity of the cells and Live/Dead assay was used to measure the viability of the cells after 24, 48, and 72 h. The developed antibacterial hydrogels are light weight, have a high water-uptake capacity, and show high biocompatibility with the model mammalian cells, which make them a promising candidate to be used for wound dressing applications.
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Affiliation(s)
- Mandana Tavakolian
- Department of Chemical Engineering, McGill University, 3610 University Street, Montreal, Quebec H3A 0C5, Canada
- Pulp and Paper Research Centre, McGill University, 3420 University Street, Montreal, Quebec H3A 2A7, Canada
- Quebec Centre for Advanced Materials (QCAM), 3420 University Street, Montreal, Quebec H3A 2A7, Canada
| | - Jose G Munguia-Lopez
- Department of Bioengineering, McGill University, 3480 University Street, Montreal, Quebec H3A 0E9, Canada
- Faculty of Dentistry, McGill University, 3640 University Street, Montreal, Quebec H3A 0C7, Canada
| | - Amin Valiei
- Department of Chemical Engineering, McGill University, 3610 University Street, Montreal, Quebec H3A 0C5, Canada
- Quebec Centre for Advanced Materials (QCAM), 3420 University Street, Montreal, Quebec H3A 2A7, Canada
| | - Md Shahidul Islam
- Pulp and Paper Research Centre, McGill University, 3420 University Street, Montreal, Quebec H3A 2A7, Canada
- Quebec Centre for Advanced Materials (QCAM), 3420 University Street, Montreal, Quebec H3A 2A7, Canada
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Joseph M Kinsella
- Department of Bioengineering, McGill University, 3480 University Street, Montreal, Quebec H3A 0E9, Canada
- Department of Biomedical Engineering, McGill University, Montreal, Quebec H3A 2B4, Canada
| | - Nathalie Tufenkji
- Department of Chemical Engineering, McGill University, 3610 University Street, Montreal, Quebec H3A 0C5, Canada
- Quebec Centre for Advanced Materials (QCAM), 3420 University Street, Montreal, Quebec H3A 2A7, Canada
| | - Theo G M van de Ven
- Pulp and Paper Research Centre, McGill University, 3420 University Street, Montreal, Quebec H3A 2A7, Canada
- Quebec Centre for Advanced Materials (QCAM), 3420 University Street, Montreal, Quebec H3A 2A7, Canada
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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11
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Bao G, Jiang T, Ravanbakhsh H, Reyes A, Ma Z, Strong M, Wang H, Kinsella JM, Li J, Mongeau L. Triggered micropore-forming bioprinting of porous viscoelastic hydrogels. Mater Horiz 2020; 7:2336-2347. [PMID: 33841881 PMCID: PMC8030731 DOI: 10.1039/d0mh00813c] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Cell-laden scaffolds of architecture and mechanics that mimic those of the host tissues are important for a wide range of biomedical applications but remain challenging to bioprint. To address these challenges, we report a new method called triggered micropore-forming bioprinting. The approach can yield cell-laden scaffolds of defined architecture and interconnected pores over a range of sizes, encompassing that of many cell types. The viscoelasticity of the bioprinted scaffold can match that of biological tissues and be tuned independently of porosity and stiffness. The bioprinted scaffold also exhibits superior mechanical robustness despite high porosity. The bioprinting method and the resulting scaffolds support cell spreading, migration, and proliferation. The potential of the 3D bioprinting system is demonstrated for vocal fold tissue engineering and as an in vitro cancer model. Other possible applications are foreseen for tissue repair, regenerative medicine, organ-on-chip, drug screening, organ transplantation, and disease modeling.
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Affiliation(s)
- Guangyu Bao
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke St W, Montreal, QC H3A 0C3, Canada
| | - Tao Jiang
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke St W, Montreal, QC H3A 0C3, Canada
| | - Hossein Ravanbakhsh
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke St W, Montreal, QC H3A 0C3, Canada
| | - Alicia Reyes
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke St W, Montreal, QC H3A 0C3, Canada
- Department of Biomedical Engineering, McGill University, 3775 rue University, Montreal, QC H3A 2B4, Canada
| | - Zhenwei Ma
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke St W, Montreal, QC H3A 0C3, Canada
| | - Mitchell Strong
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke St W, Montreal, QC H3A 0C3, Canada
| | - Huijie Wang
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke St W, Montreal, QC H3A 0C3, Canada
| | - Joseph M Kinsella
- Department of Bioengineering, McGill University, 817 Sherbrooke St W, Montreal, QC H3A 0C3, Canada
| | - Jianyu Li
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke St W, Montreal, QC H3A 0C3, Canada
- Department of Biomedical Engineering, McGill University, 3775 rue University, Montreal, QC H3A 2B4, Canada
| | - Luc Mongeau
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke St W, Montreal, QC H3A 0C3, Canada
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12
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Jiang T, Munguia-Lopez JG, Gu K, Bavoux MM, Flores-Torres S, Kort-Mascort J, Grant J, Vijayakumar S, De Leon-Rodriguez A, Ehrlicher AJ, Kinsella JM. Engineering bioprintable alginate/gelatin composite hydrogels with tunable mechanical and cell adhesive properties to modulate tumor spheroid growth kinetics. Biofabrication 2019; 12:015024. [DOI: 10.1088/1758-5090/ab3a5c] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Charbonneau AM, Kinsella JM, Tran SD. 3D Cultures of Salivary Gland Cells in Native or Gelled Egg Yolk Plasma, Combined with Egg White and 3D-Printing of Gelled Egg Yolk Plasma. Materials (Basel) 2019; 12:ma12213480. [PMID: 31652954 PMCID: PMC6861896 DOI: 10.3390/ma12213480] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/09/2019] [Accepted: 10/16/2019] [Indexed: 12/13/2022]
Abstract
For salivary gland (SG) tissue engineering, we cultured acinar NS-SV-AC cell line or primary SG fibroblasts for 14 days in avian egg yolk plasma (EYP). Media or egg white (EW) supplemented the cultures as they grew in 3D-Cryo histology well inserts. In the second half of this manuscript, we measured EYP’s freeze-thaw gelation and freeze-thaw induced gelled EYP (GEYP), and designed and tested further GEYP tissue engineering applications. With a 3D-Cryo well insert, we tested GEYP as a structural support for 3D cell culture or as a bio-ink for 3D-Bioprinting fluorescent cells. In non-printed EYP + EW or GEYP + EW cultures, sagittal sections of the cultures showed cells remaining above the well’s base. Ki-67 expression was lacking for fibroblasts, contrasting NS-SV-AC’s constant expression. Rheological viscoelastic measurements of GEYP at 37 °C on seven different freezing periods showed constant increase from 0 in mean storage and loss moduli, to 320 Pa and 120 Pa, respectively, after 30 days. We successfully 3D-printed GEYP with controlled geometries. We manually extruded GEYP bio-ink with fluorescence cells into a 3D-Cryo well insert and showed cell positioning. The 3D-Cryo well inserts reveal information on cells in EYP and we demonstrated GEYP cell culture and 3D-printing applications.
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Affiliation(s)
- André M Charbonneau
- Faculty of Dentistry, Craniofacial Tissue Engineering and Stem Cells Laboratory, McGill University, Montréal, QC H3A 0C7, Canada.
| | - Joseph M Kinsella
- Faculty of Engineering, Department of Bioengineering, McGill University, Montréal, QC H3A 0C7, Canada.
| | - Simon D Tran
- Faculty of Dentistry, Craniofacial Tissue Engineering and Stem Cells Laboratory, McGill University, Montréal, QC H3A 0C7, Canada.
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14
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Tao O, Kort-Mascort J, Lin Y, Pham HM, Charbonneau AM, ElKashty OA, Kinsella JM, Tran SD. The Applications of 3D Printing for Craniofacial Tissue Engineering. Micromachines (Basel) 2019; 10:E480. [PMID: 31319522 PMCID: PMC6680740 DOI: 10.3390/mi10070480] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 07/10/2019] [Accepted: 07/11/2019] [Indexed: 12/14/2022]
Abstract
Three-dimensional (3D) printing is an emerging technology in the field of dentistry. It uses a layer-by-layer manufacturing technique to create scaffolds that can be used for dental tissue engineering applications. While several 3D printing methodologies exist, such as selective laser sintering or fused deposition modeling, this paper will review the applications of 3D printing for craniofacial tissue engineering; in particular for the periodontal complex, dental pulp, alveolar bone, and cartilage. For the periodontal complex, a 3D printed scaffold was attempted to treat a periodontal defect; for dental pulp, hydrogels were created that can support an odontoblastic cell line; for bone and cartilage, a polycaprolactone scaffold with microspheres induced the formation of multiphase fibrocartilaginous tissues. While the current research highlights the development and potential of 3D printing, more research is required to fully understand this technology and for its incorporation into the dental field.
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Affiliation(s)
- Owen Tao
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada
| | - Jacqueline Kort-Mascort
- Department of Bioengineering, McGill University, 817 Sherbrook Street West, Montreal, QC H3A 0C3, Canada
| | - Yi Lin
- Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56 Lingyuan Road West, Guangzhou 510055, China
| | - Hieu M Pham
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada
| | - André M Charbonneau
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada
| | - Osama A ElKashty
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada
- Oral Pathology Department, Faculty of Dentistry, Mansoura University, Mansoura 22123, Egypt
| | - Joseph M Kinsella
- Department of Bioengineering, McGill University, 817 Sherbrook Street West, Montreal, QC H3A 0C3, Canada
| | - Simon D Tran
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, 3640 University Street, Montreal, QC H3A 0C7, Canada.
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15
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Mansour A, Abu-Nada L, Al-Waeli H, Mezour MA, Abdallah MN, Kinsella JM, Kort-Mascort J, Henderson JE, Ramirez-Garcialuna JL, Tran SD, Elkashty OA, Mousa A, El-Hadad AA, Taqi D, Al-Hamad F, Alageel O, Kaartinen MT, Tamimi F. Bone extracts immunomodulate and enhance the regenerative performance of dicalcium phosphates bioceramics. Acta Biomater 2019; 89:343-358. [PMID: 30853609 DOI: 10.1016/j.actbio.2019.03.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/28/2019] [Accepted: 03/06/2019] [Indexed: 12/27/2022]
Abstract
Immunomodulation strategies are believed to improve the integration and clinical performance of synthetic bone substitutes. One potential approach is the modification of biomaterial surface chemistry to mimic bone extracellular matrix (ECM). In this sense, we hypothesized that coating synthetic dicalcium phosphate (DCP) bioceramics with bone ECM proteins would modulate the host immune reactions and improve their regenerative performance. To test this, we evaluated the in vitro proteomic surface interactions and the in vivo performance of ECM-coated bioceramic scaffolds. Our results demonstrated that coating DCP scaffolds with bone extracts, specifically those containing calcium-binding proteins, dramatically modulated their interaction with plasma proteins in vitro, especially those relating to the innate immune response. In vivo, we observed an attenuated inflammatory response against the bioceramic scaffolds and enhanced peri-scaffold new bone formation supported by the increased osteoblastogenesis and reduced osteoclastogenesis. Furthermore, the bone extract rich in calcium-binding proteins can be 3D-printed to produce customized hydrogels with improved regeneration capabilities. In summary, bone extracts containing calcium-binding proteins can enhance the integration of synthetic biomaterials and improve their ability to regenerate bone probably by modulating the host immune reaction. This finding helps understand how bone allografts regenerate bone and opens the door for new advances in tissue engineering and bone regeneration. STATEMENT OF SIGNIFICANCE: Foreign-body reaction is an important determinant of in vivo biomaterial integration, as an undesired host immune response can compromise the performance of an implanted biomaterial. For this reason, applying immunomodulation strategies to enhance biomaterial engraftment is of great interest in the field of regenerative medicine. In this article, we illustrated that coating dicalcium phosphate bioceramic scaffolds with bone-ECM extracts, especially those rich in calcium-binding proteins, is a promising approach to improve their surface proteomic interactions and modulate the immune responses towards such biomaterials in a way that improves their bone regeneration performance. Collectively, the results of this study may provide a conceivable explanation for the mechanisms involved in presenting the excellent regenerative efficacy of natural bone grafts.
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Affiliation(s)
- Alaa Mansour
- Faculty of Dentistry, McGill University, Montreal, QC, Canada.
| | - Lina Abu-Nada
- Faculty of Dentistry, McGill University, Montreal, QC, Canada.
| | - Haider Al-Waeli
- Faculty of Dentistry, McGill University, Montreal, QC, Canada.
| | | | | | - Joseph M Kinsella
- Department of Bioengineering, Faculty of Engineering, McGill University, Montreal, QC, Canada.
| | - Jacqueline Kort-Mascort
- Department of Bioengineering, Faculty of Engineering, McGill University, Montreal, QC, Canada.
| | - Janet E Henderson
- Faculty of Medicine, McGill University, Montreal, QC, Canada; The Bone Engineering Labs, Research Institute McGill University Health Center, Montreal, QC, Canada.
| | - Jose Luis Ramirez-Garcialuna
- Faculty of Medicine, McGill University, Montreal, QC, Canada; The Bone Engineering Labs, Research Institute McGill University Health Center, Montreal, QC, Canada.
| | - Simon D Tran
- Faculty of Dentistry, McGill University, Montreal, QC, Canada.
| | - Osama A Elkashty
- Faculty of Medicine, McGill University, Montreal, QC, Canada; Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
| | - Aisha Mousa
- Faculty of Dentistry, McGill University, Montreal, QC, Canada.
| | - Amir A El-Hadad
- Faculty of Dentistry, McGill University, Montreal, QC, Canada.
| | - Doaa Taqi
- Faculty of Dentistry, McGill University, Montreal, QC, Canada.
| | - Faez Al-Hamad
- Faculty of Dentistry, McGill University, Montreal, QC, Canada.
| | - Omar Alageel
- Faculty of Dentistry, McGill University, Montreal, QC, Canada; College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
| | | | - Faleh Tamimi
- Faculty of Dentistry, McGill University, Montreal, QC, Canada.
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16
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Su X, Fang D, Liu Y, Ruan G, Seuntjens J, Kinsella JM, Tran SD. Lyophilized bone marrow cell extract functionally restores irradiation-injured salivary glands. Oral Dis 2018; 24:202-206. [PMID: 29480601 DOI: 10.1111/odi.12728] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 08/02/2017] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Bone marrow cell extract (BMCE) was previously reported to restore salivary gland hypofunction caused by irradiation injury. Proteins were shown to be the main active factors in BMCE. However, BMCE therapy requires multiple injections and protein denaturation is a concern during BMCE storage. This study aimed to preserve, by lyophilization (freeze-drying), the bioactive factors in BMCE. METHODS We developed a method to freeze-dry BMCE and then to analyze its ingredients and functions in vivo. Freeze-dried (FD) BMCE, freshly prepared BMCE (positive control), or saline (vehicle control) was injected into the tail vein of mice that had received irradiation to damage their salivary glands. RESULTS Results demonstrated that the presence of angiogenesis-related factors and cytokines in FD-BMCE remained comparable to those found in fresh BMCE. Both fresh and FD-BMCE restored comparably saliva secretion, increased cell proliferation, upregulated regenerative/repair genes, protected salivary acinar cells, parasympathetic nerves, and blood vessels from irradiation-damaged salivary glands. CONCLUSION Lyophilization of BMCE maintained its bioactivity and therapeutic effect on irradiation-injured salivary glands. The advantages of freeze-drying BMCE are its storage and transport at ambient temperature.
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Affiliation(s)
- X Su
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, Montreal, QC, Canada
| | - D Fang
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, Montreal, QC, Canada
| | - Y Liu
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, Montreal, QC, Canada
| | - G Ruan
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, Montreal, QC, Canada.,College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi, China
| | - J Seuntjens
- Department of Oncology, Medical Physics Unit, McGill University, Montreal, QC, Canada
| | - J M Kinsella
- Department of Bioengineering, McGill University, Montreal, QC, Canada
| | - S D Tran
- McGill Craniofacial Tissue Engineering and Stem Cells Laboratory, Faculty of Dentistry, McGill University, Montreal, QC, Canada
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17
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Jiang T, Munguia-Lopez J, Flores-Torres S, Grant J, Vijayakumar S, De Leon-Rodriguez A, Kinsella JM. Bioprintable Alginate/Gelatin Hydrogel 3D In Vitro Model Systems Induce Cell Spheroid Formation. J Vis Exp 2018. [PMID: 30010644 DOI: 10.3791/57826] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The cellular, biochemical, and biophysical heterogeneity of the native tumor microenvironment is not recapitulated by growing immortalized cancer cell lines using conventional two-dimensional (2D) cell culture. These challenges can be overcome by using bioprinting techniques to build heterogeneous three-dimensional (3D) tumor models whereby different types of cells are embedded. Alginate and gelatin are two of the most common biomaterials employed in bioprinting due to their biocompatibility, biomimicry, and mechanical properties. By combining the two polymers, we achieved a bioprintable composite hydrogel with similarities to the microscopic architecture of a native tumor stroma. We studied the printability of the composite hydrogel via rheology and obtained the optimal printing window. Breast cancer cells and fibroblasts were embedded in the hydrogels and printed to form a 3D model mimicking the in vivo microenvironment. The bioprinted heterogeneous model achieves a high viability for long-term cell culture (> 30 days) and promotes the self-assembly of breast cancer cells into multicellular tumor spheroids (MCTS). We observed the migration and interaction of the cancer-associated fibroblast cells (CAFs) with the MCTS in this model. By using bioprinted cell culture platforms as co-culture systems, it offers a unique tool to study the dependence of tumorigenesis on the stroma composition. This technique features a high-throughput, low cost, and high reproducibility, and it can also provide an alternative model to conventional cell monolayer cultures and animal tumor models to study cancer biology.
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Affiliation(s)
- Tao Jiang
- Department of Mechanical Engineering, McGill University Montreal
| | - Jose Munguia-Lopez
- Department of Bioengineering, McGill University Montreal; Department of Molecular Biology, Instituto Potosino de Investigación Científica y Tecnológica, A.C. (IPICyT)
| | | | - Joel Grant
- Department of Mining and Materials Engineering, McGill University Montreal
| | | | - Antonio De Leon-Rodriguez
- Department of Molecular Biology, Instituto Potosino de Investigación Científica y Tecnológica, A.C. (IPICyT)
| | - Joseph M Kinsella
- Department of Bioengineering, McGill University Montreal; Department of Biomedical Engineering, McGill University Montreal;
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18
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Sheng R, Wang Z, Luo T, Cao A, Sun J, Kinsella JM. Skeleton-Controlled pDNA Delivery of Renewable Steroid-Based Cationic Lipids, the Endocytosis Pathway Analysis and Intracellular Localization. Int J Mol Sci 2018; 19:ijms19020369. [PMID: 29373505 PMCID: PMC5855591 DOI: 10.3390/ijms19020369] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 01/11/2018] [Accepted: 01/18/2018] [Indexed: 01/07/2023] Open
Abstract
Using renewable and biocompatible natural-based resources to construct functional biomaterials has attracted great attention in recent years. In this work, we successfully prepared a series of steroid-based cationic lipids by integrating various steroid skeletons/hydrophobes with (l-)-arginine headgroups via facile and efficient synthetic approach. The plasmid DNA (pDNA) binding affinity of the steroid-based cationic lipids, average particle sizes, surface potentials, morphologies and stability of the steroid-based cationic lipids/pDNA lipoplexes were disclosed to depend largely on the steroid skeletons. Cellular evaluation results revealed that cytotoxicity and gene transfection efficiency of the steroid-based cationic lipids in H1299 and HeLa cells strongly relied on the steroid hydrophobes. Interestingly, the steroid lipids/pDNA lipoplexes inclined to enter H1299 cells mainly through caveolae and lipid-raft mediated endocytosis pathways, and an intracellular trafficking route of “lipid-raft-mediated endocytosis→lysosome→cell nucleic localization” was accordingly proposed. The study provided possible approach for developing high-performance steroid-based lipid gene carriers, in which the cytotoxicity, gene transfection capability, endocytosis pathways, and intracellular trafficking/localization manners could be tuned/controlled by introducing proper steroid skeletons/hydrophobes. Noteworthy, among the lipids, Cho-Arg showed remarkably high gene transfection efficacy, even under high serum concentration (50% fetal bovine serum), making it an efficient gene transfection agent for practical application.
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Affiliation(s)
- Ruilong Sheng
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Lingling Road 345, Shanghai 200032, China.
- Department of Bioengineering, McGill University, 817 Sherbrook Street, Montréal, QC H3A0C3, Canada.
- CQM-Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9000-390 Funchal, Portugal.
| | - Zhao Wang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Lingling Road 345, Shanghai 200032, China.
| | - Ting Luo
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Lingling Road 345, Shanghai 200032, China.
| | - Amin Cao
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Lingling Road 345, Shanghai 200032, China.
| | - Jingjing Sun
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Lingling Road 345, Shanghai 200032, China.
| | - Joseph M Kinsella
- Department of Bioengineering, McGill University, 817 Sherbrook Street, Montréal, QC H3A0C3, Canada.
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19
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Zhuang X, Zhao D, Yang P, Jia Y, Liang R, Zhao Q, Han C, Kinsella JM, Sheng R, Li J. 99m Tc-labeled rHuEpo for imaging of the erythropoietin receptor in tumors. J Labelled Comp Radiopharm 2017; 61:77-83. [PMID: 29140573 DOI: 10.1002/jlcr.3586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 11/03/2017] [Accepted: 11/03/2017] [Indexed: 11/10/2022]
Abstract
To analyze erythropoietin receptor (EpoR) status in tumors, recombinant human erythropoietin (rHuEpo) was labeled with 99m Tc by 99m Tc-centered 1-pot synthesis, resulting in high radiochemical purity, stability, and biological activity. Both in vitro cell culture experiments and biodistribution studies of normal rats demonstrated successful EpoR targeting. The biodistribution of labeled rHuEpo in a NCI-H1975 xenograft model showed tumor accumulation (tumor-to-muscle ratio, 4.27 ± 1.77), confirming the expression of active EpoR in tumors. Thus, as a novel single positron emission computerized tomography tracer for the imaging of EpoR expression in vivo, 99m Tc-rHuEpo is effective for exploring the role of EpoR in cancer growth, metastasis and angiogenesis.
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Affiliation(s)
- Xiaoqing Zhuang
- General Hospital of Ningxia Medical University, Yinchuan, China
| | - Dan Zhao
- General Hospital of Ningxia Medical University, Yinchuan, China
| | - Pengfei Yang
- General Hospital of Ningxia Medical University, Yinchuan, China
| | - Yingqin Jia
- General Hospital of Ningxia Medical University, Yinchuan, China
| | - Rui Liang
- General Hospital of Ningxia Medical University, Yinchuan, China
| | - Qian Zhao
- General Hospital of Ningxia Medical University, Yinchuan, China
| | - Chunlei Han
- Turku PET Centre, Turku University Hospital and University of Turku, Turku, Finland
| | | | - Ruilong Sheng
- CAS Key Laboratory for Organic Functional Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China.,CQM-Centrode Quimica da Madeira, Universidade da Madeira, Funchal, Madeira, Portugal
| | - Juan Li
- General Hospital of Ningxia Medical University, Yinchuan, China
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Jiang T, Munguia-Lopez JG, Flores-Torres S, Grant J, Vijayakumar S, Leon-Rodriguez AD, Kinsella JM. Directing the Self-assembly of Tumour Spheroids by Bioprinting Cellular Heterogeneous Models within Alginate/Gelatin Hydrogels. Sci Rep 2017; 7:4575. [PMID: 28676662 PMCID: PMC5496969 DOI: 10.1038/s41598-017-04691-9] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 05/18/2017] [Indexed: 12/27/2022] Open
Abstract
Human tumour progression is a dynamic process involving diverse biological and biochemical events such as genetic mutation and selection in addition to physical, chemical, and mechanical events occurring between cells and the tumour microenvironment. Using 3D bioprinting we have developed a method to embed MDA-MB-231 triple negative breast cancer cells, and IMR-90 fibroblast cells, within a cross-linked alginate/gelatin matrix at specific initial locations relative to each other. After 7 days of co-culture the MDA-MB-231 cells begin to form multicellular tumour spheroids (MCTS) that increase in size and frequency over time. After ~15 days the IMR-90 stromal fibroblast cells migrate through a non-cellularized region of the hydrogel matrix and infiltrate the MDA-MB-231 spheroids creating mixed MDA-MB-231/IMR-90 MCTS. This study provides a proof-of-concept that biomimetic in vitro tissue co-culture models bioprinted with both breast cancer cells and fibroblasts will result in MCTS that can be maintained for durations of several weeks.
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Affiliation(s)
- Tao Jiang
- Department of Mechanical Engineering, McGill University, Montreal, Quebec, H3A 0C3, Canada
| | - Jose G Munguia-Lopez
- Department of Molecular Biology, Instituto Potosino de Investigación Científica y Tecnológica, A.C. (IPICyT), San Luis Potosi, San Luis Potosi, 78216, Mexico
| | | | - Joel Grant
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec, H3A 0C5, Canada
| | - Sanahan Vijayakumar
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec, H3A 0C5, Canada
| | - Antonio De Leon-Rodriguez
- Department of Molecular Biology, Instituto Potosino de Investigación Científica y Tecnológica, A.C. (IPICyT), San Luis Potosi, San Luis Potosi, 78216, Mexico
| | - Joseph M Kinsella
- Department of Biomedical Engineering, McGill University, Montreal, Quebec, H3A 2B4, Canada. .,Department of Bioengineering, McGill University, Montreal, Quebec, H3A 0C3, Canada.
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21
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Xu J, Zhang Y, Zeng L, Liu J, Kinsella JM, Sheng R. A simple naphthalene-based fluorescent probe for high selective detection of formaldehyde in toffees and HeLa cells via aza-Cope reaction. Talanta 2016; 160:645-652. [PMID: 27591661 DOI: 10.1016/j.talanta.2016.08.010] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/26/2016] [Accepted: 08/02/2016] [Indexed: 10/21/2022]
Abstract
A simple naphthalene-based fluorescent probe (AENO) for formaldehyde (FA) was successfully synthesized, which exhibited a significant fluorescence turn-on response towards FA in aqueous solution. The probe could quantitatively determine the concentration of FA (0-1.0mM) with excellent selectivity, high sensitivity and low limit of detection (0.57µM). The sensing mechanism was proposed as 2-aza-Cope rearrangement for AENO after reaction with FA, which was confirmed by (1)H NMR, HR-MS, FT-IR, UV-vis and fluorescence spectra. The probe has been employed to determine the FA contents in several commercially available toffee samples with satisfactory performance. Thus, AENO might be used as a promising tool for quantitative detection of FA in food. Furthermore, fluorescence imaging of HeLa cells indicated that the probe was cell membrane permeable and could be used for visualizing/imaging the FA trace/transportation in cancer cells.
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Affiliation(s)
- Junchao Xu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin, 300384 PR China
| | - Yue Zhang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin, 300384 PR China
| | - Lintao Zeng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin, 300384 PR China.
| | - Jinbiao Liu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin, 300384 PR China
| | - Joseph M Kinsella
- Department of Bioengineering, McGill University, 817 Sherbrook Street, Montreal, Quebec, Canada H3A0C3
| | - Ruilong Sheng
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032 PR China; Department of Chemistry, Université de Montréal, Succursale Centre-ville, Montreal, Quebec, Canada H3C3J7.
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22
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Normandin MD, Yuan H, Wilks MQ, Chen HH, Kinsella JM, Cho H, Guehl NJ, Absi-Halabi N, Hosseini SM, El Fakhri G, Sosnovik DE, Josephson L. Heat-Induced Radiolabeling of Nanoparticles for Monocyte Tracking by PET. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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23
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Normandin MD, Yuan H, Wilks MQ, Chen HH, Kinsella JM, Cho H, Guehl NJ, Absi-Halabi N, Hosseini SM, El Fakhri G, Sosnovik DE, Josephson L. Heat-Induced Radiolabeling of Nanoparticles for Monocyte Tracking by PET. Angew Chem Int Ed Engl 2015; 54:13002-6. [PMID: 26368132 PMCID: PMC4754124 DOI: 10.1002/anie.201505525] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 07/22/2015] [Indexed: 12/29/2022]
Abstract
Heat-induced radiolabeling (HIR) yielded (89) Zr-Feraheme (FH) nanoparticles (NPs) that were used to determine NP pharmacokinetics (PK) by positron emission tomography (PET). Standard uptake values indicated a fast hepatic uptake that corresponded to blood clearance, and a second, slow uptake process by lymph nodes and spleen. By cytometry, NPs were internalized by circulating monocytes and monocytes in vitro. Using an IV injection of HIR (89) Zr-FH (rather than in vitro cell labeling), PET/PK provided a view of monocyte trafficking, a key component of the immune response.
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Affiliation(s)
- Marc D Normandin
- Center for Advanced Medical Imaging Sciences, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114 (USA)
| | - Hushan Yuan
- Center for Advanced Medical Imaging Sciences, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114 (USA)
| | - Moses Q Wilks
- Center for Advanced Medical Imaging Sciences, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114 (USA)
| | - Howard H Chen
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 149 13th St., Charlestown, MA 02129 (USA)
| | - Joseph M Kinsella
- McGill University, Department of Bioengineering, 817 Sherbrook Street, Montreal, Quebec H3A 0C3 (Canada)
| | - Hoonsung Cho
- School of Materials Science and Engineering, Chonnam National University, Gwangju, 500-75 (South Korea)
| | - Nicolas J Guehl
- Center for Advanced Medical Imaging Sciences, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114 (USA)
| | - Nader Absi-Halabi
- Center for Advanced Medical Imaging Sciences, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114 (USA)
| | - Seyed Mohammadreza Hosseini
- Center for Advanced Medical Imaging Sciences, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114 (USA)
| | - Georges El Fakhri
- Center for Advanced Medical Imaging Sciences, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114 (USA)
| | - David E Sosnovik
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 149 13th St., Charlestown, MA 02129 (USA)
| | - Lee Josephson
- Center for Advanced Medical Imaging Sciences, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114 (USA).
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 149 13th St., Charlestown, MA 02129 (USA).
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Harris PD, Zaleśny G, Hildebrand J, Paziewska-Harris A, Behnke JM, Tkach V, Hwang YT, Kinsella JM. The Status of Heligmosomoides americanus, Representative of an American Clade of Vole-Infecting Nematodes. J Parasitol 2015; 101:382-5. [PMID: 25574753 DOI: 10.1645/13-455.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Heligmosomoides americanus is shown by molecular phylogenetic analysis of 3 nuclear (28S, ITS1, and ITS2) and 2 mitochondrial (cytochrome oxidase 1 and cytochrome b) loci to be a distinct species of heligmosomid nematode with a long-independent evolutionary history, and not a subspecies of Heligmosomoides polygyrus . Rather than being a recent arrival in North America, the species probably originated as a Beringian immigrant with the host vole Phenacomys, approximately 2 million years ago (MYA).
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Affiliation(s)
| | - G Zaleśny
- Department of Invertebrate Systematics and Ecology, Institute of Biology, Wrocław University of Environmental and Life Sciences, ul. Kożuchowska 5b, 51-631 Wrocław, Poland
| | - J Hildebrand
- Department of Parasitology, Institute of Genetics and Microbiology, University of Wrocław, ul. Przybyszewskiego 63, 51-148 Wrocław, Poland
| | - A Paziewska-Harris
- KIT Biomedical Research, Royal Tropical Institute, Meibergdreef 39, 1105 AZ Amsterdam, The Netherlands
| | - J M Behnke
- School of Life Sciences, University of Nottingham, Nottingham NG2 7RD
| | - V Tkach
- Department of Biology, University of North Dakota, Grand Forks, North Dakota 58202-9019
| | - Y-T Hwang
- Department of Veterinary Pathology, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5B4, Canada
| | - J M Kinsella
- HelmWest Laboratory, 2108 Hilda Avenue, Missoula, Montana 59801. Correspondence should be sent to:
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Mahjoubi H, Kinsella JM, Murshed M, Cerruti M. Surface modification of poly(D,L-lactic acid) scaffolds for orthopedic applications: a biocompatible, nondestructive route via diazonium chemistry. ACS Appl Mater Interfaces 2014; 6:9975-9987. [PMID: 24965034 DOI: 10.1021/am502752j] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Scaffolds made with synthetic polymers such as polyesters are commonly used in bone tissue engineering. However, their hydrophobicity and the lack of specific functionalities make their surface not ideal for cell adhesion and growth. Surface modification of these materials is thus crucial to enhance the scaffold's integration in the body. Different surface modification techniques have been developed to improve scaffold biocompatibility. Here we show that diazonium chemistry can be used to modify the outer and inner surfaces of three-dimensional poly(D,L-lactic acid) (PDLLA) scaffolds with phosphonate groups, using a simple two-step method. By changing reaction time and impregnation procedure, we were able to tune the concentration of phosphonate groups present on the scaffolds, without degrading the PDLLA matrix. To test the effectiveness of this modification, we immersed the scaffolds in simulated body fluid, and characterized them with scanning electron microscopy, X-ray photoelectron spectroscopy, Raman, and infrared spectroscopy. Our results showed that a layer of hydroxyapatite particles was formed on all scaffolds after 2 and 4 weeks of immersion; however, the precipitation was faster and in larger amounts on the phosphonate-modified than on the bare PDLLA scaffolds. Both osteogenic MC3T3-E1 and chondrogenic ATDC5 cell lines showed increased cell viability/metabolic activity when grown on a phosphonated PDLLA surface in comparison to a control PDLLA surface. Also, more calcium-containing minerals were deposited by cultures grown on phosphonated PDLLA, thus showing the pro-mineralization properties of the proposed modification. This work introduces diazonium chemistry as a simple and biocompatible technique to modify scaffold surfaces, allowing to covalently and homogeneously bind a number of functional groups without degrading the scaffold's polymeric matrix.
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Affiliation(s)
- Hesameddin Mahjoubi
- Department of Materials Engineering, McGill University , Montreal, Quebec H3A 0C5, Canada
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26
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Kinsella JM, Jimenez RE, Karmali PP, Rush AM, Kotamraju VR, Gianneschi NC, Ruoslahti E, Stupack D, Sailor MJ. X-ray computed tomography imaging of breast cancer by using targeted peptide-labeled bismuth sulfide nanoparticles. Angew Chem Int Ed Engl 2011; 50:12308-11. [PMID: 22028313 PMCID: PMC3530424 DOI: 10.1002/anie.201104507] [Citation(s) in RCA: 150] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 08/26/2011] [Indexed: 12/13/2022]
Abstract
Enhanced visualization of breast cancer using X-ray microComputed Tomography is achieved using 10nm-diameter Bi2S3 nanoparticles, modified to display a tumor homing peptide (LyP-1, CGNKRTRGC). Accumulation within the tumor was increased by 260% over non-labeled nanoparticles.
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Affiliation(s)
- Joseph M. Kinsella
- Department of Chemistry & Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093
| | - Rebecca E. Jimenez
- Department of Biomedical Sciences, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093
| | - Priya P. Karmali
- Center for Nanomedicine, Sanford Burnham Medical Research Institute at University of California, Santa Barbara, 1105 Life Sciences Technology Bldg, Santa Barbara, CA 93106
- Cancer Center Sanford Burnham Medical Research Institute, 10901 N. Torrey Pines Road, La Jolla, CA 92037
| | - Anthony M. Rush
- Department of Chemistry & Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093
| | - V. Ramana Kotamraju
- Center for Nanomedicine, Sanford Burnham Medical Research Institute at University of California, Santa Barbara, 1105 Life Sciences Technology Bldg, Santa Barbara, CA 93106
- Cancer Center Sanford Burnham Medical Research Institute, 10901 N. Torrey Pines Road, La Jolla, CA 92037
| | - Nathan C. Gianneschi
- Department of Chemistry & Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093
| | - Erkki Ruoslahti
- Center for Nanomedicine, Sanford Burnham Medical Research Institute at University of California, Santa Barbara, 1105 Life Sciences Technology Bldg, Santa Barbara, CA 93106
- Cancer Center Sanford Burnham Medical Research Institute, 10901 N. Torrey Pines Road, La Jolla, CA 92037
| | - Dwayne Stupack
- Moores Cancer Center, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093
| | - Michael J. Sailor
- Department of Chemistry & Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093
- Materials Science and Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093
- Department of Bioengineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093
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27
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Kinsella JM, Jimenez RE, Karmali PP, Rush AM, Kotamraju VR, Gianneschi NC, Ruoslahti E, Stupack D, Sailor MJ. X-Ray Computed Tomography Imaging of Breast Cancer by using Targeted Peptide-Labeled Bismuth Sulfide Nanoparticles. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104507] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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28
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Kinsella JM, Ananda S, Andrew JS, Grondek JF, Chien MP, Scadeng M, Gianneschi NC, Ruoslahti E, Sailor MJ. Enhanced magnetic resonance contrast of Fe₃O₄ nanoparticles trapped in a porous silicon nanoparticle host. Adv Mater 2011; 23:H248-53. [PMID: 21842475 PMCID: PMC3548421 DOI: 10.1002/adma.201101877] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Indexed: 05/19/2023]
Affiliation(s)
- Joseph M. Kinsella
- Department of Chemistry & Biochemistry, University of California, San Diego, 92093, La Jolla, CA, USA
| | - Shalini Ananda
- Materials Science and Engineering, University of California, San Diego, 92093, La Jolla, CA, USA
| | - Jennifer S. Andrew
- Department of Chemistry & Biochemistry, University of California, San Diego, 92093, La Jolla, CA, USA
| | - Joel F. Grondek
- Department of Chemistry & Biochemistry, University of California, San Diego, 92093, La Jolla, CA, USA
| | - Miao-Ping Chien
- Department of Chemistry & Biochemistry, University of California, San Diego, 92093, La Jolla, CA, USA
| | - Miriam Scadeng
- Department of Radiology, University of California, San Diego, 92093, La Jolla, CA, USA
| | - Nathan C. Gianneschi
- Department of Chemistry & Biochemistry, University of California, San Diego, 92093, La Jolla, CA, USA
| | - Erkki Ruoslahti
- Center for Nanomedicine, Sanford Burnham Medical Research Institute at the University of California, Santa Barbara, 93106, Santa Barbara, CA, USA
| | - Michael J. Sailor
- Department of Chemistry & Biochemistry, University of California, San Diego, 92093, La Jolla, CA, USA
- Materials Science and Engineering, University of California, San Diego, 92093, La Jolla, CA, USA
- Department of Bioengineering, University of California, San Diego, 92093, La Jolla, CA, USA
- Prof. Michael J. Sailor Corresponding-Author University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093
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Park JS, Kinsella JM, Jandial DD, Howell SB, Sailor MJ. Cisplatin-loaded porous Si microparticles capped by electroless deposition of platinum. Small 2011; 7:2061-9. [PMID: 21630444 PMCID: PMC3377373 DOI: 10.1002/smll.201100438] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Revised: 03/29/2011] [Indexed: 05/18/2023]
Abstract
The loading and release of the anti-cancer drug platinum cis-dichlorodiamine (cisplatin) from mesoporous silicon (pSi) microparticles is studied. The pSi microparticles are modified with 1-dodecene or with 1,12-undecylenic acid by hydrosilylation, and each modified pSi material acts as a reducing agent, forming a deposit of Pt on its surface that nucleates further deposition, capping the mesoporous structure and trapping free (unreduced) cisplatin within. Slow oxidation and hydrolytic dissolution of the Si/SiO(2) matrix in buffer solution or in culture medium leads to the release of drugs from the microparticles. The drug-loaded particles show significantly greater toxicity toward human ovarian cancer cells (in vitro), relative to an equivalent quantity of free cisplatin. This result is consistent with the mechanism of drug release, which generates locally high concentrations of the drug in the vicinity of the degrading particles. Control assays with pSi particles loaded in a similar manner with the therapeutically inactive trans isomer of the platinum drug, and with pSi particles containing no drug, result in low cellular toxicity. A hydrophobic pro-drug, cis,trans,cis-[Pt(NH(3))(2)(O(2)C(CH(2))(8)CH(3))(2)Cl(2)], is loaded into the pSi films from chloroform without concomitant reduction of the pSi carrier.
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Affiliation(s)
- Jennifer S Park
- Department of Bioengineering, University of California-San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0358, USA
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Wu EC, Andrew JS, Buyanin A, Kinsella JM, Sailor MJ. Suitability of porous silicon microparticles for the long-term delivery of redox-active therapeutics. Chem Commun (Camb) 2011; 47:5699-701. [PMID: 21503283 DOI: 10.1039/c1cc10993f] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thermal oxidation of porous Si microparticles provides an inert carrier for the long-term release of the anthracycline drug daunorubicin. Without prior oxidation, porous Si undergoes an undesirable side reaction with this redox active drug.
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Affiliation(s)
- Elizabeth C Wu
- Department of Bioengineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
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31
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Jaganathan H, Kinsella JM, Ivanisevic A. Circular Dichroism Study of the Mechanism of Formation of DNA Templated Nanowires. Chemphyschem 2008; 9:2203-6. [DOI: 10.1002/cphc.200800509] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Kinsella JM, Ivanisevic A. Fabrication of ordered metallic and magnetic heterostructured DNA—Nanoparticle hybrids. Colloids Surf B Biointerfaces 2008; 63:296-300. [DOI: 10.1016/j.colsurfb.2007.12.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2007] [Revised: 12/07/2007] [Accepted: 12/10/2007] [Indexed: 11/30/2022]
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Abstract
Dip-pen nanolithography is used to selectively modify the SiOx area between microfabricated electrodes. The modified surface is characterized by atomic force microscopy, X-ray photoelectron spectroscopy, force volume imaging, and adhesion maps. The functionalized complex architecture is used for the localization of DNA coated with magnetic nanoparticles. The strategy reported here can become the basis for the construction of a number of functional devices. The devices can utilize the unique recognition properties of the DNA and the magnetic properties of the nanoparticles that template them.
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Affiliation(s)
- Joseph M Kinsella
- Weldon School of Biomedical Engineering, Purdue UniversityWest Lafayette, IN, USA
| | - Albena Ivanisevic
- Weldon School of Biomedical Engineering, Purdue UniversityWest Lafayette, IN, USA
- Department of Chemistry, Purdue UniversityWest Lafayette, IN, USA
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35
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Abstract
The structure and magnetic properties of different types of templated wires are compared in this study. A long DNA molecule was used to guide the assembly of pyrrolidinone-capped Fe2O3 and CoFe2O3 particles as well as polylysine-coated gold nanoparticles. The resulting DNA-templated wires were stretched onto silicon oxide surfaces using a receding meniscus procedure. The coated, stretched, and surface-bound wires were characterized using atomic force microscopy (AFM), magnetic force microscopy (MFM), and spectroscopic methods. The results with respect to the wire properties were correlated with those determined from the bulk properties of the nanoparticles and with the properties of the bulk DNA. The MFM measurements allowed us to visualize the formation of domains along the wires as well as qualitatively compare the magnetic properties of each templated structure.
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Affiliation(s)
- Joseph M Kinsella
- Weldon School of Biomedical Engineering and Department of Chemistry, Purdue University, West Lafayette, Indiana 47906, USA
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Abstract
The study describes how DNA coated with magnetic nanoparticles remains biologically active and accessible to the BamH1 restriction enzyme. Long DNA molecules are coated with magnetic nanoparticles using electrostatic interactions. The coated, stretched, and surface-bound DNA is incubated in the restriction enzyme that specifically recognizes any strand containing the GGATCC base sequence and clips the DNA. We show that, despite the presence of the nanoparticles on the DNA, the enzyme is still able to recognize the cleavage site and effectively digest the assembly.
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Affiliation(s)
- Joseph M Kinsella
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
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Abstract
The prevalence of parasitic helminths in the digestive tract of 119 diurnal raptors (Falconiformes), which had died in a wildlife rehabilitation centre in Catalonia, was studied. The birds belonged to 13 species, with 100 of them (84 per cent) being kestrels (Falco tinnunculus), buzzards (Buteo buteo), sparrowhawks (Accipiter nisus) and goshawks (Accipiter gentilis). Ninety-five of the birds (79.8 per cent) were infected with helminths. Nematodes were the most frequently found helminth (75.6 per cent), followed by trematodes, cestodes and ancanthocephalans. All the buzzards and sparrowhawks and 92 per cent of the goshawks were infected, but only 59 per cent of the kestrels were infected.
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Affiliation(s)
- D Ferrer
- Unitat de Parasitologia i Malalties Parasitàries, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
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Affiliation(s)
- David J. Reese
- 1. Department of Pathobiology, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610, USA
| | - JM Kinsella
- 1. Department of Pathobiology, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610, USA
| | | | - Qi-Yun Zeng
- 1. Department of Pathobiology, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Ellis C. Greiner
- 1. Department of Pathobiology, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610, USA
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39
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Johnson PTJ, Sutherland DR, Kinsella JM, Lunde KB. Review of the Trematode Genus Ribeiroia (Psilostomidae): Ecology, Life History and Pathogenesis with Special Emphasis on the Amphibian Malformation Problem. ADVANCES IN PARASITOLOGY 2004; 57:191-253. [PMID: 15504539 DOI: 10.1016/s0065-308x(04)57003-3] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Trematodes in the genus Ribeiroia have an indirect life cycle involving planorbid snails as first intermediate hosts, fishes or amphibians as second intermediate hosts and birds or mammals as definitive hosts. Although rarely pathogenic in definitive hosts, Ribeiroia infection can cause severe pathology and mortality in snails and amphibians. This group of parasites has gained notoriety for its prominent rol in the recent rash of amphibian deformities in North America. Under some circumstances, these malformations may enhance parasite transmission by rendering infected amphibian hosts more susceptible to definitive host predators. However, increasing reports of malformations in North American amphibian populations emphasize the importance of understanding infection patterns. Here we review important aspects of the biology, ecology, life cycle and pathogenesis of parasites in the genus Ribeiroia and identify priorities for future research. Based on available morphological descriptions and preliminary molecular data, three species of Ribeiroia are recognized: R. ondatrae in the Americas, R. marini in the Caribbean and R. congolensis/C. lileta in Africa. We further evaluate the influence of abiotic and biotic factors in determining the intensity and prevalence of Ribeiroia infection and malformations in amphibians, highlighting the importance of habitat alteration and secondary factors (e.g. aquatic eutrophication, contaminants) in promoting infection. Although not a "new" parasite, Ribeiroia may have increased in range, prevalence, or intensity in recent years, particularly within amphibian hosts. Nevertheless, while much is known about this intriguing group of parasites, there remains much that we do not know. Particular importance for future research is placed on the following areas: evaluating the phylogenetic position of the genus, establishing the molecular mechanism of parasite-induced malformations in amphibians, isolating the drivers of parasite transmission under field conditions and studying the consequences of malformations for parasite and host populations. Investigation of these questions will benefit enormously from a multidisciplinary approach that effectively integrates parasitology, developmental biology, immunology, herpetology and aquatic ecology.
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Affiliation(s)
- Pieter T J Johnson
- Center for Limnology, University of Wisconsin, Madison, WI 53706-1492, USA.
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40
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Oniki Y, Kinsella JM, Willis EO. Pelecitus helicinus Railliet & Henry, 1910 (Filarioidea, Dirofilariinae) and other nematode parasites of Brazilian birds. Mem Inst Oswaldo Cruz 2002; 97:597-8. [PMID: 12118298 DOI: 10.1590/s0074-02762002000400027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We report Pelecitus helicinus Railliet & Henry, 1910 from 13 species of birds of 2 orders and 7 families, collected from the states of São Paulo and Mato Grosso, Brazil. All 13 constitute new host records for this nematode. In addition, we report the first record of Aprocta golvani Diaz-Ungria, 1963 from Brazil and Monasa nigrifrons (Bucconidae), as well as a number of other nematode records from Neotropical birds.
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Affiliation(s)
- Yoshika Oniki
- Instituto de Estudos da Natureza, Rio Claro, SP, Brasil
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Abstract
Numerous nematode cysts were observed throughout the mesentery and on the surface of gastrointestinal organs in a whooping crane (Grus americana) that was found dead in a central Florida marsh. Morphology of the excysted nematodes most closely resembled third-stage larvae in the order Spirurida but were not similar to any species previously reported in whooping cranes. Evidence presented suggests that the larvae may be Physocephalus sexalatus, a swine spirurid in the subfamily Ascaropsinae that is commonly found encapsulated in birds, amphibians, and reptiles. We suspect that the whooping crane may potentially serve as a transport host for this parasite.
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Affiliation(s)
- A Varela
- Tufts University School of Veterinary Medicine, North Grafton, Massachusetts 01604, USA
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Gruber HE, Johnson TL, Kinsella JM, Greiner EC, Gordon BE. Tapeworm identification in the fat sand rat (Psammomys obesus obesus). Contemp Top Lab Anim Sci 2001; 40:22-4. [PMID: 11703052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
The identification of a tapeworm (Rodentolepis nana, formerly named Hymenolepis nana) infection in a research breeding colony of sand rats (Psammomys obesus obesus) was complicated because of the unexpected long length (< 150 mm) of the worms. Other morphologic features that were consistent with this identification included the number (24), size (16 mm), and shape of the hooks on the rostellum. No evidence of intermediate hosts was found in the colony. Previous surveys of natural populations of sand rats had not identified this tapeworm. However, a detailed search of the literature revealed that variation in the size of R. nana had been reported, thus supporting the final identification of the tapeworm. R. nana is important and interesting because of its zoonotic potential and because it is the only tapeworm that is able to infect its definitive host without use of an intermediate host. This report is presented to help clarify the ambiguity found in the laboratory animal literature about the differences in the size of R. nana among rodent species used in research.
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Affiliation(s)
- H E Gruber
- Department of Orthopaedic Surgery, Orthopaedic Research Biology, Cannon Bldg., 3rd floor, Carolinas Medical Center, P.O. Box 32861, Charlotte, North Carolina 28232, USA
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Matey VE, Kuperman BI, Kinsella JM. Scanning electron microscopy of Turgida turgida (Nematoda: Spiruroidea), parasite of the Virginia opossum, Didelphis virginiana, from southern California. J Parasitol 2001; 87:1199-202. [PMID: 11695400 DOI: 10.1645/0022-3395(2001)087[1199:semott]2.0.co;2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Taxonomic characters for identification of Turgida turgida Rudolphi, 1819, a parasitic nematode of the Virginia opossum Didelphis virginiana, were studied by scanning electron microscopy. The distinguishing feature of the cephalic end is the presence of numerous denticles, structures associated with the internal tooth, and 2 spongelike areas on the inner side of each pseudolabia. The posterior end of male T. turgida differs from that in other species of Physalopteridae by the number of caudal papillae (22), truncated postcloacal papilla, and patterns of ventrocaudal ornamentation.
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Affiliation(s)
- V E Matey
- Department of Biology and Center for Inland Waters, San Diego State University, California 92182, USA
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Abstract
Thirteen species of helminth parasites were recovered from six species of charadriid shorebirds (Aves: Charadriiformes) from Belize: the ruddy turnstone, Arenaria interpres, the snowy plover, Charadrius alexandrinus, the semipalmated plover, C. semipalmatus, the killdeer, C. vociferus, the white-rumped sandpiper, Calidris fuscicollis, and the black-bellied plover, Pluvialis squatarola. Cestode species were predominant (N = 8), followed by trematode species (N = 3) and acanthocephala (N = 2). The trematode, Paramaritremopsis solielangi infected four of the six species of hosts. The cestodes, Nadejdolepis litoralis and N. paranitidulans infected three and two host species respectively. Helminth parasite species were contagious (clumped) and not evenly distributed among hosts. Twelve of the 13 species were generalists. The one specialist Microphallus kinsellae was recovered from one C. fuscicollis. Three of the four types of feeding guilds were present and in approximately the same number. All but M. kinsellae have been reported from other species of hosts, mostly from Eurasia and North America.
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Frey BW, Lynch FT, Kinsella JM, Horowitz B, Sanders KM, Carl A. Blocking of cloned and native delayed rectifier K channels from visceral smooth muscles by phencyclidine. Neurogastroenterol Motil 2000; 12:509-16. [PMID: 11123705 DOI: 10.1046/j.1365-2982.2000.00225.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
We investigated the effect of phencyclidine (PCP) on three native delayed rectifier K+ currents and three channels cloned from canine and human circular colonic myocytes using voltage-clamp techniques. Native delayed rectifier K+ current in canine circular colon is composed of at least three components: (i) a rapidly activating, 4-aminopyridine-sensitive component (termed IdK(f)); (ii) a slowly activating, tetraethylammonium (TEA)-sensitive component (IdK(s)); and (iii) a rapidly activating, TEA-sensitive component, which has a steady-state inactivation curve shifted towards more negative potentials (IdK(n)). PCP blocked all three components with EC50 values of 45, 27 and 59 micromol L-1, respectively. Blocking was neither use-dependent nor voltage-dependent. Delayed rectifier K+ channels cloned from canine (Kv1.2, Kv1.5) and from human (Kv2.2) colon were expressed in Xenopus oocytes. PCP blocked all three currents with similar potency. In contrast, PCP (up to 10-4 mol L-1) did not reduce the magnitude of Ca2+-dependent outward current of large conductance Ca2+-activated K+ channels (BK channels).
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Affiliation(s)
- B W Frey
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, USA
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McKay NG, Kinsella JM, Campbell CM, Ashford ML. Sensitivity of Kir6.2-SUR1 currents, in the absence and presence of sodium azide, to the K(ATP) channel inhibitors, ciclazindol and englitazone. Br J Pharmacol 2000; 130:857-66. [PMID: 10864893 PMCID: PMC1572145 DOI: 10.1038/sj.bjp.0703395] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Two electrode voltage clamp and single channel recordings were used to investigate the actions of various ATP-sensitive K(+) (K(ATP)) channel inhibitors on cloned K(ATP) channels, expressed in Xenopus oocytes and HEK 293 cells. Oocytes expressing Kir6.2 and SUR1 gave rise to inwardly rectifying K(+) currents following bath application of 3 mM sodium azide. Inside-out recordings from non-azide treated oocytes demonstrated the presence of K(ATP) channels which were activated by direct application of 3 mM azide and 0.1 mM Mg-ATP. Tolbutamide inhibited azide-induced macroscopic Kir6.2-SUR1 currents, recorded from Xenopus oocytes, with an IC(50) value similar to native K(ATP) channels. Ciclazindol and englitazone also inhibited these currents in a concentration-dependent manner, but with relative potencies substantially less than for native K(ATP) channels. Single channel currents recorded from inside-out patches excised from oocytes expressing Kir6.2-SUR1 currents were inhibited by tolbutamide, Mg-ATP, englitazone and ciclazindol, in the absence of azide, with potencies similar to native K(ATP) channels. In the presence of azide, Kir6.2-SUR1 currents were inhibited by englitazone and tolbutamide but not ciclazindol. Single channel currents derived from Kir6.2Delta26, expressed in HEK 293 cells, were inhibited by ciclazindol and englitazone irrespective of the absence or presence of SUR1. In conclusion, heterologously expressed Kir6.2 and SUR1 recapitulate the pharmacological profile of native pancreatic beta-cell K(ATP) channels. However, currents induced by azide exhibit a substantially reduced sensitivity to ciclazindol. It is likely that ciclazindol and englitazone inhibit K(ATP) currents by interaction with the Kir6.2 subunit.
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Affiliation(s)
- N G McKay
- Department of Biomedical Sciences, Institute of Medical Sciences, Foresterhill, University of Aberdeen, Aberdeen AB25 2ZD
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Craig LE, Kinsella JM, Lodwick LJ, Cranfield MR, Strandberg JD. Gongylonema macrogubernaculum in captive African squirrels (Funisciurus substriatus and Xerus erythropus) and lion-tailed macaques (Macaca silenus). J Zoo Wildl Med 1998; 29:331-7. [PMID: 9809609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
Necropsies performed between 1989 and 1995 on 15 African rope squirrels (Funisciurus substriatus) and 20 African ground squirrels (Xerus erythropus) from the Baltimore Zoo revealed 13 cases of gongylonemiasis. Nematodes were embedded in the epithelium of the esophagus, pharynx, buccal mucosa, and tongue, resulting in varying degrees of esophagitis, pharyngitis, stomatitis, and glossitis, respectively. Routine fecal examinations were negative, and the nematodes appeared to be unaffected by repeated treatments with ivermectin. Most of the affected animals had shown clinical signs of dyspnea and/or inanition and emaciation. Suppurative rhinitis was also a frequent finding at necropsy and was associated with the presence of the nematodes in eight animals. Dissection of whole nematodes from formalin-fixed specimens revealed morphologic features consistent with Gongylonema macrogubernaculum, a species previously only reported in nonhuman primates. The squirrels were housed in the same building with numerous primate species, and a review of pathology records revealed esophageal gongylonemiasis in three lion-tailed macaques (Macaca silenus), lingual gongylonemiasis in a spotnose monkey (Cercopithecus buettikoferi), and buccal gongylonemiasis in a brown-headed tamarin (Saguinus fuscicollis). Examination of whole nematodes dissected from one of the lion-tailed macaques also demonstrated the unique morphology of G. macrogubernaculum. Nematodes belonging to the species Gongylonema are acquired by ingestion of the intermediate host, the cockroach. This is the first report of G. macrogubernaculum in a nonprimate species and suggests that captive African squirrels can serve as reservoir hosts for this parasite in a zoo environment.
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Affiliation(s)
- L E Craig
- Division of Comparative Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland 21205, USA
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48
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Canaris AG, Kinsella JM. Helminth parasite communities in four species of shorebirds (Charadriidae) on King Island, Tasmania. ACTA ACUST UNITED AC 1998. [DOI: 10.26749/rstpp.132.49] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abstract
Nine species of nematodes, unidentified larval nematodes, three species of trematodes, two species of acanthocephalans and a single species of chewing louse were collected from 1993 to 1995 from 25 introduced whooping cranes (Grus americana) in Florida (USA). In spite of a quarantine procedure involving anthelmintic therapy, three helminth parasites may have been introduced from captive populations. Other parasites acquired were similar to those found in a local congener, the Florida sandhill crane (Grus canadensis pratensis), or only occurred infrequently.
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Affiliation(s)
- M G Spalding
- Department of Pathobiology, College of Veterinary Medicine, University of Florida, Gainesville 32611, USA
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Kinsella JM, Deblock ET. [Contribution to the study of Microphallidae travassos, 1920 (Trematoda). XLVI. Description of Floridatrema heardi n. gen., n. sp., parasite of Oryzomys palustris (Mammalia) of the United States]. Parasite 1994; 1:45-50. [PMID: 9235193 DOI: 10.1051/parasite/1994011045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The authors describe the adult of the trematode Floridatrema heardi n. gen, n. sp., parasite of the intestine of Oryzomys palustris (Mammalia:Rodentia) in Florida (USA). The new genus is placed among the Microphallidae, Maritrematidi, Maritrematinae, Maritrematini; near the genus Maritrema Nicoll, it is characterised by vitellaria in the form of a horseshoe and the anterior extension of two symmetrical uterine loops as far as the level of the pharynx, the left anterior uterine loop proceeding from the uterus proximally. The species lacks a spiny atrio-acetabular plate and concentric rings in the afferent sub-tegumentary musculature. The anotomical phenomenon of the anterior extension of the uterus in the Microphallidae is discussed.
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Affiliation(s)
- J M Kinsella
- Department of Infectious diseases, College of Veterinary Medecine, University of Florida, Gainesvile, USA
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