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Burgess JK, Gosens R. Mechanotransduction and the extracellular matrix: Key drivers of lung pathologies and drug responsiveness. Biochem Pharmacol 2024:116255. [PMID: 38705536 DOI: 10.1016/j.bcp.2024.116255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/19/2024] [Accepted: 05/02/2024] [Indexed: 05/07/2024]
Abstract
The lung is a biomechanically active organ, with multiscale mechanical forces impacting the organ, tissue and cellular responses within this microenvironment. In chronic lung diseases, such as chronic obstructive pulmonary disease, pulmonary fibrosis and others, the structure of the lung is drastically altered impeding gas exchange. These changes are, in part, reflected in alterations in the composition, amount and organization of the extracellular matrix within the different lung compartments. The transmission of mechanical forces within lung tissue are broadcast by this complex mix of extracellular matrix components, in particular the collagens, elastin and proteoglycans and the crosslinking of these components. At both a macro and a micro level, the mechanical properties of the microenvironment have a key regulatory role in ascertaining cellular responses and the function of the lung. Cells adhere to, and receive signals from, the extracellular matrix through a number of different surface receptors and complexes which are important for mechanotransduction. This review summarizes the multiscale mechanics in the lung and how the mechanical environment changes in lung disease and aging. We then examine the role of mechanotransduction in driving cell signaling events in lung diseases and finish with a future perspective of the need to consider how such forces may impact pharmacological responsiveness in lung diseases.
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Affiliation(s)
- Janette K Burgess
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen, the Netherlands; University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, the Netherlands.
| | - Reinoud Gosens
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, the Netherlands; Department of Molecular Pharmacology, University of Groningen, Groningen, the Netherlands
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2
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Aghigh A, Preston SEJ, Jargot G, Ibrahim H, Del Rincón SV, Légaré F. Nonlinear microscopy and deep learning classification for mammary gland microenvironment studies. BIOMEDICAL OPTICS EXPRESS 2023; 14:2181-2195. [PMID: 37206132 PMCID: PMC10191635 DOI: 10.1364/boe.487087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/26/2023] [Accepted: 03/29/2023] [Indexed: 05/21/2023]
Abstract
Tumors, their microenvironment, and the mechanisms by which collagen morphology changes throughout cancer progression have recently been a topic of interest. Second harmonic generation (SHG) and polarization second harmonic (P-SHG) microscopy are label-free, hallmark methods that can highlight this alteration in the extracellular matrix (ECM). This article uses automated sample scanning SHG and P-SHG microscopy to investigate ECM deposition associated with tumors residing in the mammary gland. We show two different analysis approaches using the acquired images to distinguish collagen fibrillar orientation changes in the ECM. Lastly, we apply a supervised deep-learning model to classify naïve and tumor-bearing mammary gland SHG images. We benchmark the trained model using transfer learning with the well-known MobileNetV2 architecture. By fine-tuning the different parameters of these models, we show a trained deep-learning model that suits such a small dataset with 73% accuracy.
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Affiliation(s)
- Arash Aghigh
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Varennes, Québec, Canada
| | - Samuel E. J. Preston
- Department of Experimental Medicine, Faculty of Medicine, McGill University, Montréal, Québec, Canada
- Gerald Bronfman Department of Oncology, Segal Cancer Centre, Lady Davis Institute and Jewish General Hospital, McGill University, Montreal, Quebec, Canada
| | - Gaëtan Jargot
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Varennes, Québec, Canada
| | - Heide Ibrahim
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Varennes, Québec, Canada
| | - Sonia V Del Rincón
- Department of Experimental Medicine, Faculty of Medicine, McGill University, Montréal, Québec, Canada
- Gerald Bronfman Department of Oncology, Segal Cancer Centre, Lady Davis Institute and Jewish General Hospital, McGill University, Montreal, Quebec, Canada
| | - François Légaré
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Varennes, Québec, Canada
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Brown Y, Hua S, Tanwar PS. Extracellular Matrix in High-Grade Serous Ovarian Cancer: Advances in Understanding of Carcinogenesis and Cancer Biology. Matrix Biol 2023; 118:16-46. [PMID: 36781087 DOI: 10.1016/j.matbio.2023.02.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 01/20/2023] [Accepted: 02/08/2023] [Indexed: 02/13/2023]
Abstract
High-grade serous ovarian cancer (HGSOC) is notoriously known as the "silent killer" of post-menopausal women as it has an insidious progression and is the deadliest gynaecological cancer. Although a dual origin of HGSOC is now widely accepted, there is growing evidence that most cases of HGSOC originate from the fallopian tube epithelium. In this review, we will address the fallopian tube origin and involvement of the extracellular matrix (ECM) in HGSOC development. There is limited research on the role of ECM at the earliest stages of HGSOC carcinogenesis. Here we aim to synthesise current understanding on the contribution of ECM to each stage of HGSOC development and progression, beginning at serous tubal intraepithelial carcinoma (STIC) precursor lesions and proceeding across key events including dissemination of tumourigenic fallopian tube epithelial cells to the ovary, survival of these cells in peritoneal fluid as multicellular aggregates, and colonisation of the ovary. Likewise, as part of the metastatic series of events, serous ovarian cancer cells survive travel in peritoneal fluid, attach to, migrate across the mesothelium and invade into the sub-mesothelial matrix of secondary sites in the peritoneal cavity. Halting cancer at the pre-metastatic stage and finding ways to stop the dissemination of ovarian cancer cells from the primary site is critical for improving patient survival. The development of drug resistance also contributes to poor survival statistics in HGSOC. In this review, we provide an update on the involvement of the ECM in metastasis and drug resistance in HGSOC. Interplay between different cell-types, growth factor gradients as well as evolving ECM composition and organisation, creates microenvironment conditions that promote metastatic progression and drug resistance of ovarian cancer cells. By understanding ECM involvement in the carcinogenesis and chemoresistance of HGSOC, this may prompt ideas for further research for developing new early diagnostic tests and therapeutic strategies for HGSOC with the end goal of improving patient health outcomes.
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Affiliation(s)
- Yazmin Brown
- Global Centre for Gynaecological Diseases, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, Australia.; Cancer Detection and Therapy Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia..
| | - Susan Hua
- Therapeutic Targeting Research Group, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia.; Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Pradeep S Tanwar
- Global Centre for Gynaecological Diseases, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, Australia.; Cancer Detection and Therapy Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW, Australia..
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4
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Mirsanaye K, Uribe Castaño L, Kamaliddin Y, Golaraei A, Kontenis L, Ẑurauskas E, Navab R, Yasufuku K, Tsao MS, Wilson BC, Barzda V. Unsupervised determination of lung tumor margin with widefield polarimetric second-harmonic generation microscopy. Sci Rep 2022; 12:20713. [PMID: 36456811 PMCID: PMC9715953 DOI: 10.1038/s41598-022-24973-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 11/22/2022] [Indexed: 12/03/2022] Open
Abstract
The extracellular matrix (ECM) is amongst many tissue components affected by cancer, however, morphological changes of the ECM are not well-understood and thus, often omitted from diagnostic considerations. Polarimetric second-harmonic generation (P-SHG) microscopy allows for visualization and characterization of collagen ultrastructure in the ECM, aiding in better understanding of the changes induced by cancer throughout the tissue. In this paper, a large region of hematoxylin and eosin (H&E) stained human lung section, encompassing a tumor margin, connecting a significant tumor portion to normal tissue was imaged with P-SHG microscopy. The resulting polarimetric parameters were utilized in principal components analysis and unsupervised K-Means clustering to separate normal- and tumor-like tissue. Consequently, a pseudo-color map of the clustered tissue regions is generated to highlight the irregularity of the ECM collagen structure throughout the region of interest and to identify the tumor margin, in the absence of morphological characteristics of the cells.
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Affiliation(s)
- Kamdin Mirsanaye
- grid.17063.330000 0001 2157 2938Department of Physics, University of Toronto, Toronto, Canada ,grid.17063.330000 0001 2157 2938Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Canada
| | - Leonardo Uribe Castaño
- grid.17063.330000 0001 2157 2938Department of Physics, University of Toronto, Toronto, Canada ,grid.17063.330000 0001 2157 2938Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Canada
| | - Yasmeen Kamaliddin
- grid.17063.330000 0001 2157 2938Department of Physics, University of Toronto, Toronto, Canada ,grid.17063.330000 0001 2157 2938Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Canada
| | - Ahmad Golaraei
- grid.17063.330000 0001 2157 2938Department of Physics, University of Toronto, Toronto, Canada ,grid.17063.330000 0001 2157 2938Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Canada ,grid.231844.80000 0004 0474 0428Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Lukas Kontenis
- grid.6441.70000 0001 2243 2806Laser Research Centre, Faculty of Physics, Vilnius University, Vilnius, Lithuania ,Light Conversion, Vilnius, Lithuania
| | - Edvardas Ẑurauskas
- grid.6441.70000 0001 2243 2806Department of Pathology, Forensic Medicine and Pharmacology, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Roya Navab
- grid.231844.80000 0004 0474 0428Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Kazuhiro Yasufuku
- grid.231844.80000 0004 0474 0428Toronto General Hospital, University Health Network, Toronto, Canada
| | - Ming-Sound Tsao
- grid.231844.80000 0004 0474 0428Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Brian C. Wilson
- grid.231844.80000 0004 0474 0428Princess Margaret Cancer Centre, University Health Network, Toronto, Canada ,grid.17063.330000 0001 2157 2938Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | - Virginijus Barzda
- grid.17063.330000 0001 2157 2938Department of Physics, University of Toronto, Toronto, Canada ,grid.17063.330000 0001 2157 2938Department of Chemical and Physical Sciences, University of Toronto Mississauga, Mississauga, Canada ,grid.6441.70000 0001 2243 2806Laser Research Centre, Faculty of Physics, Vilnius University, Vilnius, Lithuania
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PSHG-TISS: A collection of polarization-resolved second harmonic generation microscopy images of fixed tissues. Sci Data 2022; 9:376. [PMID: 35780180 PMCID: PMC9250519 DOI: 10.1038/s41597-022-01477-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 06/13/2022] [Indexed: 11/23/2022] Open
Abstract
Second harmonic generation (SHG) microscopy is acknowledged as an established imaging technique capable to provide information on the collagen architecture in tissues that is highly valuable for the diagnostics of various pathologies. The polarization-resolved extension of SHG (PSHG) microscopy, together with associated image processing methods, retrieves extensive image sets under different input polarization settings, which are not fully exploited in clinical settings. To facilitate this, we introduce PSHG-TISS, a collection of PSHG images, accompanied by additional computationally generated images which can be used to complement the subjective qualitative analysis of SHG images. These latter have been calculated using the single-axis molecule model for collagen and provide 2D representations of different specific PSHG parameters known to account for the collagen structure and distribution. PSHG-TISS can aid refining existing PSHG image analysis methods, while also supporting the development of novel image processing and analysis methods capable to extract meaningful quantitative data from the raw PSHG image sets. PSHG-TISS can facilitate the breadth and widespread of PSHG applications in tissue analysis and diagnostics. Measurement(s) | Type I Collagen | Technology Type(s) | multi-photon laser scanning microscopy | Factor Type(s) | second order susceptibility tensor elements | Sample Characteristic - Organism | Homo sapiens | Sample Characteristic - Environment | laboratory environment | Sample Characteristic - Location | Romania |
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6
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Machine learning-enabled cancer diagnostics with widefield polarimetric second-harmonic generation microscopy. Sci Rep 2022; 12:10290. [PMID: 35717344 PMCID: PMC9206659 DOI: 10.1038/s41598-022-13623-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 05/03/2022] [Indexed: 11/08/2022] Open
Abstract
The extracellular matrix (ECM) collagen undergoes major remodeling during tumorigenesis. However, alterations to the ECM are not widely considered in cancer diagnostics, due to mostly uniform appearance of collagen fibers in white light images of hematoxylin and eosin-stained (H&E) tissue sections. Polarimetric second-harmonic generation (P-SHG) microscopy enables label-free visualization and ultrastructural investigation of non-centrosymmetric molecules, which, when combined with texture analysis, provides multiparameter characterization of tissue collagen. This paper demonstrates whole slide imaging of breast tissue microarrays using high-throughput widefield P-SHG microscopy. The resulting P-SHG parameters are used in classification to differentiate tumor from normal tissue, resulting in 94.2% for both accuracy and F1-score, and 6.3% false discovery rate. Subsequently, the trained classifier is employed to predict tumor tissue with 91.3% accuracy, 90.7% F1-score, and 13.8% false omission rate. As such, we show that widefield P-SHG microscopy reveals collagen ultrastructure over large tissue regions and can be utilized as a sensitive biomarker for cancer diagnostics and prognostics studies.
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Ray A, Callaway MK, Rodríguez-Merced NJ, Crampton AL, Carlson M, Emme KB, Ensminger EA, Kinne AA, Schrope JH, Rasmussen HR, Jiang H, DeNardo DG, Wood DK, Provenzano PP. Stromal architecture directs early dissemination in pancreatic ductal adenocarcinoma. JCI Insight 2021; 7:150330. [PMID: 34914633 PMCID: PMC8855836 DOI: 10.1172/jci.insight.150330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 12/10/2021] [Indexed: 12/02/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDA) is an extremely metastatic and lethal disease. Here, in both murine and human PDA, we demonstrate that extracellular matrix architecture regulates cell extrusion and subsequent invasion from intact ductal structures through tumor-associated collagen signatures (TACS). This results in early dissemination from histologically premalignant lesions and continual invasion from well-differentiated disease, and it suggests TACS as a biomarker to aid in the pathologic assessment of early disease. Furthermore, we show that pancreatitis results in invasion-conducive architectures, thus priming the stroma prior to malignant disease. Analysis in potentially novel microfluidic-derived microtissues and in vivo demonstrates decreased extrusion and invasion following focal adhesion kinase (FAK) inhibition, consistent with decreased metastasis. Thus, data suggest that targeting FAK or strategies to reengineer and normalize tumor microenvironments may have roles not only in very early disease, but also for limiting continued dissemination from unresectable disease. Likewise, it may be beneficial to employ stroma-targeting strategies to resolve precursor diseases such as pancreatitis in order to remove stromal architectures that increase risk for early dissemination.
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Affiliation(s)
- Arja Ray
- Department of Biomedical Engineeirng, University of Minnesota, Minneapolis, United States of America
| | - Mackenzie K Callaway
- Department of Biomedical Engineeirng, University of Minnesota, Minneapolis, United States of America
| | - Nelson J Rodríguez-Merced
- Department of Biomedical Engineeirng, University of Minnesota, Minneapolis, United States of America
| | - Alexandra L Crampton
- Department of Biomedical Engineeirng, University of Minnesota, Minneapolis, United States of America
| | - Marjorie Carlson
- Department of Biomedical Engineeirng, University of Minnesota, Minneapolis, United States of America
| | - Kenneth B Emme
- Department of Biomedical Engineeirng, University of Minnesota, Minneapolis, United States of America
| | - Ethan A Ensminger
- Department of Biomedical Engineeirng, University of Minnesota, Minneapolis, United States of America
| | - Alexander A Kinne
- Department of Biomedical Engineeirng, University of Minnesota, Minneapolis, United States of America
| | - Jonathan H Schrope
- Department of Biomedical Engineeirng, University of Minnesota, Minneapolis, United States of America
| | - Haley R Rasmussen
- Department of Biomedical Engineeirng, University of Minnesota, Minneapolis, United States of America
| | - Hong Jiang
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, United States of America
| | - David G DeNardo
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, United States of America
| | - David K Wood
- Department of Biomedical Engineeirng, University of Minnesota, Minneapolis, United States of America
| | - Paolo P Provenzano
- Department of Biomedical Engineeirng, University of Minnesota, Minneapolis, United States of America
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8
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Jambor AN, Shelton EM, Kijowski R, Henak CR, Campagnola PJ. Assessing collagen alterations in enzymatic degradation models of osteoarthritis via second harmonic generation microscopy. Osteoarthritis Cartilage 2021; 29:1590-1599. [PMID: 34454101 PMCID: PMC8542598 DOI: 10.1016/j.joca.2021.08.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 07/30/2021] [Accepted: 08/16/2021] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Structural changes in the collagen II architecture of osteoarthritis (OA) are poorly understood, which is a large shortcoming in the early diagnosis of this disease. Though degradation can be simulated by enzymes including trypsin and bacterial collagenase, the specific structural features of each digestion and their relationship to naturally occurring OA remain unclear. EXPERIMENTAL DESIGN We used collagen sensitive/specific Second Harmonic Generation (SHG) microscopy in conjunction with optical scattering measurements to probe the resulting architecture changes in bovine knee cartilage upon trypsin and collagenase degradation. Image features extracted from SHG images were used to train a linear discriminant (LD) model capable of classifying enzymatic degradation, which was then applied to human cartilage with varied modified Mankin histological scores. RESULTS The treatment of cartilage with these enzymes resulted in more disorganized collagen structure, where this effect was greatest with collagenase treatment. Using the LD model, we classified the control and degraded tissues in the three zones with >92% accuracy, showing that these enzymes have distinct activity on the collagen assembly. Application of the LD model to human cartilage indicated that collagenase effects were more representative of in vivo degeneration and were also consistent with damage beginning at the articular surface and progressing into deeper zones. CONCLUSIONS SHG and optical scattering measurements successfully delineate trypsin and collagenase degradation and suggest that collagen alterations in human OA are better simulated by the latter mechanism. These results lay the groundwork for using high-resolution SHG and optical scattering as an earlier diagnostic tool than is currently available.
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Affiliation(s)
- Alexander N. Jambor
- Department of Biomedical Engineering, University of Wisconsin-Madison, 1550 Engineering Dr, Madison, WI 53706, USA
| | - Emily M. Shelton
- Department of Biomedical Engineering, University of Wisconsin-Madison, 1550 Engineering Dr, Madison, WI 53706, USA,Department of Physics, University of Wisconsin-Madison, 1150 University Ave, Madison, WI 53706, USA
| | - Richard Kijowski
- Department of Radiology, 600 Highland Ave, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Corinne R. Henak
- Department of Biomedical Engineering, University of Wisconsin-Madison, 1550 Engineering Dr, Madison, WI 53706, USA,Department of Mechanical Engineering, University of Wisconsin-Madison, 1513 University Ave, Madison, WI 53706, USA,,
| | - Paul J. Campagnola
- Department of Biomedical Engineering, University of Wisconsin-Madison, 1550 Engineering Dr, Madison, WI 53706, USA,,
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9
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Ray A, Provenzano PP. Aligned forces: Origins and mechanisms of cancer dissemination guided by extracellular matrix architecture. Curr Opin Cell Biol 2021; 72:63-71. [PMID: 34186415 PMCID: PMC8530881 DOI: 10.1016/j.ceb.2021.05.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 05/17/2021] [Accepted: 05/18/2021] [Indexed: 12/14/2022]
Abstract
Organized extracellular matrix (ECM), in the form of aligned architectures, is a critical mediator of directed cancer cell migration by contact guidance, leading to metastasis in solid tumors. Current models suggest anisotropic force generation through the engagement of key adhesion and cytoskeletal complexes drives contact-guided migration. Likewise, disrupting the balance between cell-cell and cell-ECM forces, driven by ECM engagement for cells at the tumor-stromal interface, initiates and drives local invasion. Furthermore, processes such as traction forces exerted by cancer and stromal cells, spontaneous reorientation of matrix-producing fibroblasts, and direct binding of ECM modifying proteins lead to the emergence of collagen alignment in tumors. Thus, as we obtain a deeper understanding of the origins of ECM alignment and the mechanisms by which it is maintained to direct invasion, we are poised to use the new paradigm of stroma-targeted therapies to disrupt this vital axis of disease progression in solid tumors.
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Affiliation(s)
- Arja Ray
- Department of Pathology, University of California, San Francisco, USA.
| | - Paolo P Provenzano
- Department of Biomedical Engineering, University of Minnesota, USA; University of Minnesota Physical Sciences in Oncology Center, USA; Masonic Cancer Center, University of Minnesota, USA; Institute for Engineering in Medicine, University of Minnesota, USA; Stem Cell Institute, University of Minnesota, USA.
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10
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Jyothsna KM, Sarkar P, Jha KK, A S LK, Raghunathan V, Bhat R. A biphasic response of polymerized Type 1 collagen architectures to dermatan sulfate. J Biomed Mater Res A 2021; 109:1646-1656. [PMID: 33687134 DOI: 10.1002/jbm.a.37160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 01/31/2021] [Accepted: 02/10/2021] [Indexed: 12/24/2022]
Abstract
Collagen I, the most abundant extracellular matrix (ECM) protein in vertebrate tissues provides mechanical durability to tissue microenvironments and regulates cell function. Its fibrillogenesis in biological milieu is predominantly regulated by dermatan sulfate proteoglycans, proteins conjugated with iduronic acid-containing dermatan sulfate (DS) glycosaminoglycans (GAG). Although DS is known to regulate tissue function through its modulation of Coll I architecture, a precise understanding of the latter remains elusive. We investigated this problem by visualizing the fibrillar pattern of fixed Coll I gels polymerized in the presence of varying concentrations of DS using second harmonic generation microscopy. Measuring mean second harmonic generation signal (which estimates the ordering of the fibrils), and surface occupancy (which estimates the space occupied by fibrils) supported by confocal reflectance microscopy, our observations indicated that the effect on fibril pattern of DS is contextual upon the latter's concentrations: Lower levels of DS resulted in sparse disorganized fibrils; higher levels restore organization, with fibrils occupying greater space. An appropriate change in elasticity as a result of DS levels was also observed through atomic force microscopy. Examination of dye-based GAG staining and scanning electron microscopy suggested distinct constitutions of Coll I gels when polymerized with higher and lower levels of DS. We observed that adhesion of the invasive ovarian cancer cells SKOV3 decreased for lower DS levels but was partially restored at higher DS levels. Our study shows how the Coll I gel pattern-tuning of DS is of relevance for understanding its biomaterial applications and possibly, pathophysiological functions.
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Affiliation(s)
- Konkada Manattayil Jyothsna
- Department of Electrical Communication Engineering, Indian Institute of Science, Bangalore, Karnataka, India
| | - Purba Sarkar
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore, Karnataka, India
| | - Keshav Kumar Jha
- Department of Electrical Communication Engineering, Indian Institute of Science, Bangalore, Karnataka, India.,Department of Functional Interfaces, Leibniz Institute of Photonic Technology, Jena, Germany
| | - Lal Krishna A S
- Department of Electrical Communication Engineering, Indian Institute of Science, Bangalore, Karnataka, India
| | - Varun Raghunathan
- Department of Electrical Communication Engineering, Indian Institute of Science, Bangalore, Karnataka, India
| | - Ramray Bhat
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore, Karnataka, India
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James DS, Campagnola PJ. Recent Advancements in Optical Harmonic Generation Microscopy: Applications and Perspectives. BME FRONTIERS 2021; 2021:3973857. [PMID: 37849910 PMCID: PMC10521653 DOI: 10.34133/2021/3973857] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 12/14/2020] [Indexed: 10/19/2023] Open
Abstract
Second harmonic generation (SHG) and third harmonic generation (THG) microscopies have emerged as powerful imaging modalities to examine structural properties of a wide range of biological tissues. Although SHG and THG arise from very different contrast mechanisms, the two are complimentary and can often be collected simultaneously using a modified multiphoton microscope. In this review, we discuss the needed instrumentation for these modalities as well as the underlying theoretical principles of SHG and THG in tissue and describe how these can be leveraged to extract unique structural information. We provide an overview of recent advances showing how SHG microscopy has been used to evaluate collagen alterations in the extracellular matrix and how this has been used to advance our knowledge of cancers, fibroses, and the cornea, as well as in tissue engineering applications. Specific examples using polarization-resolved approaches and machine learning algorithms are highlighted. Similarly, we review how THG has enabled developmental biology and skin cancer studies due to its sensitivity to changes in refractive index, which are ubiquitous in all cell and tissue assemblies. Lastly, we offer perspectives and outlooks on future directions of SHG and THG microscopies and present unresolved questions, especially in terms of overall miniaturization and the development of microendoscopy instrumentation.
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Affiliation(s)
- Darian S. James
- Department of Biomedical Engineering, University of Wisconsin-Madison, 1550 Engineering Dr, Madison, WI 53706, USA
| | - Paul J. Campagnola
- Department of Biomedical Engineering, University of Wisconsin-Madison, 1550 Engineering Dr, Madison, WI 53706, USA
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12
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Gopal AA, Kazarine A, Dubach JM, Wiseman PW. Recent advances in nonlinear microscopy: Deep insights and polarized revelations. Int J Biochem Cell Biol 2020; 130:105896. [PMID: 33253831 DOI: 10.1016/j.biocel.2020.105896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/12/2020] [Accepted: 11/19/2020] [Indexed: 11/16/2022]
Abstract
Nonlinear microscopy is a technique that utilizes nonlinear interactions between light and matter to image fluorescence and scattering phenomena in biological tissues. Very high peak intensities from focused short pulsed lasers are required for nonlinear excitation due to the extremely low probability of the simultaneous arrival of multiple photons of lower energy to excite fluorophores or interact with selective structures for harmonic generation. Combined with reduced scattering from the utilization of longer wavelengths, the inherent spatial confinement associated with achieving simultaneous arrival of photons within the focal volume enables deep imaging with low out-of-focus background for nonlinear imaging. This review provides an introduction to the different contrast mechanisms available with nonlinear imaging and instrumentation commonly used in nonlinear microscopy. Furthermore, we discuss some recent advances in nonlinear microscopy to extend the imaging penetration depth, conduct histopathological investigations on fresh tissues and examine the molecular order and orientation of molecules using polarization nonlinear microscopy.
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Affiliation(s)
- A A Gopal
- Center for Systems Biology and Institute for Innovation in Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA; Department of Chemistry, McGill University, Montreal, Quebec, Canada
| | - A Kazarine
- Department of Chemistry, McGill University, Montreal, Quebec, Canada
| | - J M Dubach
- Center for Systems Biology and Institute for Innovation in Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - P W Wiseman
- Department of Chemistry, McGill University, Montreal, Quebec, Canada; Department of Physics, McGill University, Montreal, Quebec, Canada.
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Durgam S, Singh B, Cole SL, Brokken MT, Stewart M. Quantitative Assessment of Tendon Hierarchical Structure by Combined Second Harmonic Generation and Immunofluorescence Microscopy. Tissue Eng Part C Methods 2020; 26:253-262. [PMID: 32228165 DOI: 10.1089/ten.tec.2020.0032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Histological evaluation of healing tendons is primarily focused on monitoring restoration of longitudinal collagen alignment, although the elastic property of energy-storing flexor tendons is largely attributed to interfascicular sliding facilitated by the interfascicular matrix (IFM). The objectives of this study were to explore the utility of second harmonic generation (SHG) imaging to objectively assess cross-sectional tendon fascicle architecture, to combine SHG microscopy with elastin immunofluorescence to assess the ultrastructure of collagen and elastin in longitudinal and transverse sections, and lastly, to quantify changes in IFM elastin and fascicle collagen alignment of normal and collagenase-injured flexor tendons. Paraffin-embedded transverse and longitudinal histological sections (10-μm thickness) derived from normal and collagenase-injured (6- and 16-week time-points) equine superficial digital flexor tendons were de-paraffinized, treated with Tris EDTA at 80°C for epitope retrieval, and incubated with mouse monoclonal anti-elastin antibody (1:100 dilution) overnight. Anti-mouse IgG Alexa Flour 546 secondary antibody was applied, and sections were mounted with ProLong Gold reagent with 4',6-diamidino-2-phenylindole (DAPI). Nuclei (DAPI) and elastin (Alexa Fluor 546) signals were captured by using standard confocal imaging with 405 and 543 nm excitation wavelengths, respectively. The SHG signal was captured by using a tunable Ti:Sapphire laser tuned to 950 nm to visualize type I collagen. Quantitative measurements of fascicle cross-sectional area (CSA), IFM thickness in transverse SHG-DAPI merged z-stacks, fascicle/IFM elastin area fraction (%), and elastin-collagen alignment in longitudinal SHG-elastin merged z-stacks were conducted by using ImageJ software. Using this methodology, fascicle CSA, IFM thickness, and IFM elastin area fraction (%) at 6 weeks (∼2.25-fold; ∼2.8-fold; 60% decrease; p < 0.001) and 16 weeks (∼2-fold; ∼1.5-fold; 70% decrease; p < 0.001) after collagenase injection, respectively, were found to be significantly different from normal tendon. IFM elastin and fascicle collagen alignment characterized via fast Fourier transform (FFT) frequency plots at 16 weeks demonstrated that collagen re-alignment was more advanced than that of elastin. The integration of SHG-derived quantitative measurements in transverse and longitudinal tendon sections supports comprehensive assessment of tendon structure. Our findings demonstrate the importance of including IFM and non-collagenous proteins in tendon histological evaluations, tasks that can be effectively carried out by using SHG and immunofluorescence microscopy. Impact statement This work demonstrated that second harmonic generation microscopy in conjunction with elastin immunofluorescence provided a comprehensive assessment of multiscale structural re-organization in healing tendon than when restricted to longitudinal collagen fiber alignment alone. Utilizing this approach for tendon histomorphometry is ideal not only to improve our understanding of hierarchical structural changes that occur after tendon injury and during remodeling but also to monitor the efficacy of therapeutic approaches.
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Affiliation(s)
- Sushmitha Durgam
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Benjamin Singh
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Sara L Cole
- Campus Microscopy Imaging Facility, The Ohio State University, Columbus, Ohio, USA
| | - Matthew T Brokken
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Matthew Stewart
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, USA
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Rentchler EC, Gant KL, Drapkin R, Patankar M, J. Campagnola P. Imaging Collagen Alterations in STICs and High Grade Ovarian Cancers in the Fallopian Tubes by Second Harmonic Generation Microscopy. Cancers (Basel) 2019; 11:cancers11111805. [PMID: 31744173 PMCID: PMC6896112 DOI: 10.3390/cancers11111805] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 11/14/2019] [Indexed: 11/17/2022] Open
Abstract
The majority of high-grade serous ovarian cancers originate in the fallopian tubes, however, the corresponding structural changes in the extracellular matrix (ECM) have not been well-characterized. This information could provide new insight into the carcinogenesis and provide the basis for new diagnostic tools. We have previously used the collagen-specific Second Harmonic Generation (SHG) microscopy to probe collagen fiber alterations in high-grade serous ovarian cancer and in other ovarian tumors, and showed they could be uniquely identified by machine learning approaches. Here we couple SHG imaging of serous tubal intra-epithelial carcinomas (STICs), high-grade cancers, and normal regions of the fallopian tubes, using three distinct image analysis approaches to form a classification scheme based on the respective collagen fiber morphology. Using a linear discriminant analysis, we achieved near 100% classification accuracy between high-grade disease and the other tissues, where the STICs and normal regions were differentiated with ~75% accuracy. Importantly, the collagen in high-grade disease in both the fallopian tube and the ovary itself have a similar collagen morphology, further substantiating the metastasis between these sites. This analysis provides a new method of classification, but also quantifies the structural changes in the disease, which may provide new insight into metastasis.
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Affiliation(s)
- Eric C. Rentchler
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI 53706, USA;
| | - Kristal L. Gant
- Department of Obstetrics and Gynecology, University of Wisconsin, Madison, WI 53706, USA; (K.L.G.); (M.P.)
| | - Ronny Drapkin
- Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, PA 19104, USA;
| | - Manish Patankar
- Department of Obstetrics and Gynecology, University of Wisconsin, Madison, WI 53706, USA; (K.L.G.); (M.P.)
| | - Paul J. Campagnola
- Department of Biomedical Engineering, University of Wisconsin, Madison, WI 53706, USA;
- Correspondence:
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Desa DE, Bhanote M, Hill RL, Majeski JB, Buscaglia B, D’Aguiar M, Strawderman R, Hicks DG, Turner BM, Brown EB. Second-harmonic generation directionality is associated with neoadjuvant chemotherapy response in breast cancer core needle biopsies. JOURNAL OF BIOMEDICAL OPTICS 2019; 24:1-9. [PMID: 31456385 PMCID: PMC6983524 DOI: 10.1117/1.jbo.24.8.086503] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 08/05/2019] [Indexed: 05/30/2023]
Abstract
Neoadjuvant chemotherapy (NACT) is routinely administered to subsets of breast cancer patients, including triple negative (TN) or human epidermal growth factor receptor 2-positive (HER2+) cancers. After NACT and subsequent surgical resection, 5% to 30% of patients have no residual invasive carcinoma, termed pathological complete response. Unfortunately, many patients experience little-to-no response after NACT and unnecessarily suffer its side effects. Methods are needed to predict an individual patient’s response to NACT. Core needle biopsies, taken before NACT, consist of tumor cells and the surrounding extracellular matrix. We performed second-harmonic generation (SHG) imaging of fibrillar collagen in core needle biopsy sections as a possible predictor of response to NACT. The ratio of forward-to-backward scattering (F/B) SHG was assessed in the “tumor bulk” and “tumor–host interface” in HER2+ and TN core needle biopsy sections. Patient response was classified post-treatment using the Residual Cancer Burden (RCB) score. In HER2+ biopsies, RCB class was associated with F/B derived from the tumor–stromal interface, but not tumor bulk. F/B was not associated with RCB class in TN biopsies. These findings suggest that F/B from needle biopsy sections may be a useful predictor of which patients will respond favorably to NACT, with the potential to help reduce overtreatment.
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Affiliation(s)
- Danielle E. Desa
- University of Rochester, Hajim School of Engineering and Applied Sciences, Department of Biomedical Engineering, Rochester, New York, United States
| | - Monisha Bhanote
- University of Rochester Medical Center, School of Medicine and Dentistry, Department of Pathology and Laboratory Medicine, Rochester, New York, United States
| | - Robert L. Hill
- Harmonigenic Corporation, Rochester, New York, United States
| | - Joseph B. Majeski
- University of Rochester, Hajim School of Engineering and Applied Sciences, Department of Biomedical Engineering, Rochester, New York, United States
| | - Brandon Buscaglia
- Rochester Institute of Technology, Kate Gleason College of Engineering, Department of Biomedical Engineering, Rochester, New York, United States
| | - Marcus D’Aguiar
- Rochester Institute of Technology, Kate Gleason College of Engineering, Department of Biomedical Engineering, Rochester, New York, United States
| | - Robert Strawderman
- University of Rochester Medical Center, School of Medicine and Dentistry, Department of Biostatistics and Computational Biology, Rochester, New York, United States
| | - David G. Hicks
- University of Rochester Medical Center, School of Medicine and Dentistry, Department of Pathology and Laboratory Medicine, Rochester, New York, United States
| | - Bradley M. Turner
- University of Rochester Medical Center, School of Medicine and Dentistry, Department of Pathology and Laboratory Medicine, Rochester, New York, United States
| | - Edward B. Brown
- University of Rochester, Hajim School of Engineering and Applied Sciences, Department of Biomedical Engineering, Rochester, New York, United States
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