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Lam CH, Janson C, Romanova L, Hansen EA. Lymphatic cells do not functionally integrate into 3D organotypic brain slice cultures, but aggregate around penetrating blood vessels. Exp Brain Res 2022; 240:2349-2358. [PMID: 35920898 DOI: 10.1007/s00221-022-06429-0] [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: 12/13/2021] [Accepted: 07/26/2022] [Indexed: 11/04/2022]
Abstract
Brain slice culture (BSC) is a well-known three-dimensional model of the brain. In this study, we use organotypic slices for studying neuro-lymphatic physiology, to directly test the longstanding assumption that the brain is not a hospitable milieu for typical lymphatic vessels. An additional objective is to model fluid egress through brain perivascular space systems and to visualize potential cellular interactions among cells in the leptomeninges including alterations of cellular geometry and number of processes. Immortalized lymphatic rat cell lines were used to seed organotypic brain slices. The brain slice model was characterized by monitoring morphologies, growth rates, degree of apoptosis, and transport properties of brain slices with or without a lymphatic component. The model was then challenged with fibroblast co-cultures, as a control cell that is not normally found in the brain. Immortalized lymphatic cells penetrated the brain slices within 2-4 days. Typical cell morphology is spindly with bipolar and tripolar forms well represented. Significantly more indigo carmine marker passed through lymphatic seeded BSCs compared to arachnoid BSCs. Significantly more indigo carmine passed through brain slices co-cultured with fibroblast compared to lymphatic and arachnoid BSCs alone. We have developed an organotypic model in which lymphatic cells are able to interact with parenchymal cells in the cerebrum. Their presence appears to alter the small molecule transport ability of whole-brain slices. Lymphatic cells decreased dye transport in BSCs, possibly by altering the perivascular space. Given their direct contact with the CSF, they may affect convectional and diffusional processes. Our model shows that a decrease in lymphatic cell growth may reduce the brain slice's transport capabilities.
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Affiliation(s)
- Cornelius H Lam
- Department of Neurosurgery, University of Minnesota, MMC 96, 420 Delaware St. S.E, Minneapolis, MN, 55455, USA.,Department of Neurosurgery, Minneapolis Veterans Administration Health Care System, 1 Veterans Drive, 151 Research Department, Minneapolis, MN, 55417, USA
| | - Christopher Janson
- Departments of Neurology and Neuroscience, Wright State University, Dayton, OH, USA
| | - Liudmila Romanova
- Department of Neurological Sciences, Rush Medical College, Chicago, IL, USA
| | - Eric A Hansen
- Department of Neurosurgery, Minneapolis Veterans Administration Health Care System, 1 Veterans Drive, 151 Research Department, Minneapolis, MN, 55417, USA.
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Frenkel N, Poghosyan S, Alarcón CR, García SB, Queiroz K, van den Bent L, Laoukili J, Rinkes IB, Vulto P, Kranenburg O, Hagendoorn J. Long-Lived Human Lymphatic Endothelial Cells to Study Lymphatic Biology and Lymphatic Vessel/Tumor Coculture in a 3D Microfluidic Model. ACS Biomater Sci Eng 2021; 7:3030-3042. [PMID: 34185991 DOI: 10.1021/acsbiomaterials.0c01378] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The lymphatic system is essential in maintaining tissue fluid homeostasis as well as antigen and immune cell transport to lymph nodes. Moreover, lymphatic vasculature plays an important role in various pathological processes, such as cancer. Fundamental to this research field are representative in vitro models. Here we present a microfluidic lymphatic vessel model to study lymphangiogenesis and its interaction with colon cancer organoids using a newly developed lymphatic endothelial cell (LEC) line. We generated immortalized human LECs by lentiviral transduction of human telomerase (hTERT) and BMI-1 expression cassettes into primary LECs. Immortalized LECs showed an increased growth potential, reduced senescence, and elongated lifespan with maintenance of typical LEC morphology and marker expression for over 12 months while remaining nontransformed. Immortalized LECs were introduced in a microfluidic chip, comprising a free-standing extracellular matrix, where they formed a perfusable vessel-like structure against the extracellular matrix. A gradient of lymphangiogenic factors over the extracellular matrix gel induced the formation of luminated sprouts. Adding mouse colon cancer organoids adjacent to the lymphatic vessel resulted in a stable long-lived coculture model in which cancer cell-induced lymphangiogenesis and cancer cell motility can be investigated. Thus, the development of a stable immortalized lymphatic endothelial cell line in a membrane-free, perfused microfluidic chip yields a highly standardized lymphangiogenesis and lymphatic vessel-tumor cell coculture assay.
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Affiliation(s)
- Nicola Frenkel
- UMC Utrecht Cancer Center, University Medical Center Utrecht and Utrecht University, Heidelberglaan 100, Utrecht 3584CX, The Netherlands
| | - Susanna Poghosyan
- UMC Utrecht Cancer Center, University Medical Center Utrecht and Utrecht University, Heidelberglaan 100, Utrecht 3584CX, The Netherlands
| | - Carmen Rubio Alarcón
- UMC Utrecht Cancer Center, University Medical Center Utrecht and Utrecht University, Heidelberglaan 100, Utrecht 3584CX, The Netherlands
| | | | | | - Lotte van den Bent
- UMC Utrecht Cancer Center, University Medical Center Utrecht and Utrecht University, Heidelberglaan 100, Utrecht 3584CX, The Netherlands
| | - Jamila Laoukili
- UMC Utrecht Cancer Center, University Medical Center Utrecht and Utrecht University, Heidelberglaan 100, Utrecht 3584CX, The Netherlands
| | - Inne Borel Rinkes
- UMC Utrecht Cancer Center, University Medical Center Utrecht and Utrecht University, Heidelberglaan 100, Utrecht 3584CX, The Netherlands
| | - Paul Vulto
- Mimetas BV, JH Oortweg 19, Leiden, The Netherlands
| | - Onno Kranenburg
- UMC Utrecht Cancer Center, University Medical Center Utrecht and Utrecht University, Heidelberglaan 100, Utrecht 3584CX, The Netherlands
| | - Jeroen Hagendoorn
- UMC Utrecht Cancer Center, University Medical Center Utrecht and Utrecht University, Heidelberglaan 100, Utrecht 3584CX, The Netherlands
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Breslin JW, Yang Y, Scallan JP, Sweat RS, Adderley SP, Murfee WL. Lymphatic Vessel Network Structure and Physiology. Compr Physiol 2018; 9:207-299. [PMID: 30549020 PMCID: PMC6459625 DOI: 10.1002/cphy.c180015] [Citation(s) in RCA: 174] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The lymphatic system is comprised of a network of vessels interrelated with lymphoid tissue, which has the holistic function to maintain the local physiologic environment for every cell in all tissues of the body. The lymphatic system maintains extracellular fluid homeostasis favorable for optimal tissue function, removing substances that arise due to metabolism or cell death, and optimizing immunity against bacteria, viruses, parasites, and other antigens. This article provides a comprehensive review of important findings over the past century along with recent advances in the understanding of the anatomy and physiology of lymphatic vessels, including tissue/organ specificity, development, mechanisms of lymph formation and transport, lymphangiogenesis, and the roles of lymphatics in disease. © 2019 American Physiological Society. Compr Physiol 9:207-299, 2019.
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Affiliation(s)
- Jerome W. Breslin
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL
| | - Ying Yang
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL
| | - Joshua P. Scallan
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL
| | - Richard S. Sweat
- Department of Biomedical Engineering, Tulane University, New Orleans, LA
| | - Shaquria P. Adderley
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL
| | - W. Lee Murfee
- Department of Biomedical Engineering, University of Florida, Gainesville, FL
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Evidence Supporting a Lymphatic Endothelium Origin for Angiomyolipoma, a TSC2(-) Tumor Related to Lymphangioleiomyomatosis. THE AMERICAN JOURNAL OF PATHOLOGY 2016; 186:1825-1836. [PMID: 27289491 DOI: 10.1016/j.ajpath.2016.03.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 03/02/2016] [Accepted: 03/07/2016] [Indexed: 12/27/2022]
Abstract
Angiomyolipoma (AML) is a tumor closely related to lymphangioleiomyomatosis (LAM). Both entities are characterized by the proliferation of smooth muscle actin and melanocytic glycoprotein 100 (recognized by antibody HMB-45)-positive spindle-shaped and epithelioid cells. AML and LAM are etiologically linked to mutations in the tsc2 and tsc1 genes in the case of LAM. These genes encode the proteins tuberous sclerosis complex (TSC)-1 and TSC2, which are directly involved in suppressing the mechanistic target of rapamycin cell growth signaling pathway. Although significant progress has been made in characterizing and pharmacologically slowing the progression of AML and LAM with rapamycin, our understanding of their pathogenesis lacks an identified cell of origin. We used an AML-derived cell line to determine whether TSC2 restitution brings about the cell type from which AML arises. We found that AML cells express lymphatic endothelial cell markers consistent with lymphatic endothelial cell precursors in vivo and in vitro. Moreover, on TSC2 correction, AML cells mature into adult lymphatic endothelial cells and have functional attributes characteristic of this cell lineage, suggesting a lymphatic endothelial cell of origin for AML. These effects are dependent on TSC2-mediated mechanistic target of rapamycin inactivation. Finally, we demonstrate the in vitro effectiveness of norcantharidin, a lymphangiogenesis inhibitor, as a potential co-adjuvant therapy in the treatment of AML.
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