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Muniz LR, Pacer ME, Lira SA, Furtado GC. A critical role for dendritic cells in the formation of lymphatic vessels within tertiary lymphoid structures. THE JOURNAL OF IMMUNOLOGY 2011; 187:828-34. [PMID: 21666055 DOI: 10.4049/jimmunol.1004233] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Ectopic, or tertiary, lymphoid aggregates often form in chronically inflamed areas. Lymphatic vessels, as well as high endothelial venules, form within these lymphoid aggregates, but the mechanisms underlying their development are poorly understood. Overexpression of the chemokine CCL21 in the thyroid of transgenic mice leads to formation of lymphoid aggregates containing topologically segregated T and B lymphocytes, dendritic cells (DCs), and specialized vasculature, including Lyve-1(+)/Prox-1(+) lymphatic vessels. In this article, we show that adoptive transfer of mature CD4(+) T cells into animals expressing CCL21 in a RAG-deficient background promotes the influx of host NK cells and DCs into the thyroid and the formation of new lymphatic vessels within 10 d. This process is dependent on the expression of lymphotoxin ligands by host cells, but not by the transferred CD4(+) T cells. Ablation of host DCs, but not NK cells, reduces the formation of new lymphatic vessels in the thyroid. Taken together, these data suggest a critical role for CD11c(+) DCs in the induction of lymphangiogenesis in tertiary lymphoid structures.
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Affiliation(s)
- Luciana R Muniz
- Immunology Institute, Mount Sinai School of Medicine, New York, NY 10029, USA
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Chen L, Hamrah P, Cursiefen C, Zhang Q, Pytowski B, Streilein JW, Dana MR. Vascular endothelial growth factor receptor-3 mediates induction of corneal alloimmunity. 2004. Ocul Immunol Inflamm 2007; 15:275-8. [PMID: 17613841 DOI: 10.1080/09273940701382317] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Xu X, Lin H, Lv H, Zhang M, Zhang Y. Adventitial lymphatic vessels – An important role in atherosclerosis. Med Hypotheses 2007; 69:1238-41. [PMID: 17825501 DOI: 10.1016/j.mehy.2007.04.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2007] [Accepted: 04/02/2007] [Indexed: 10/22/2022]
Abstract
Arterial inflammation is a significant component of atherosclerotic disease-specific immune responses directed against autoantigens or pathogen-derived antigens in the vascular wall could initiate and/or maintain atherosclerotic processes. Atherosclerosis is now regarded as a chronic inflammatory disease. Developing in response to injury in the vessel wall, it is characterized by the infiltration of mononuclear lymphocytes into the intima, local expansion of vascular smooth muscle cells, and accumulation of extracellular matrix. A number of potential mechanisms have been implicated in the development of inflammatory reactions in the vascular system. Adventitia provides cells and molecules with the ability to influence neointimal formation and vascular remodeling implemented in part by vasa vasorum. We hypothesize that lymphatic vessels, existing in adventitia in the atherosclerotic artery, could drain local inflammatory cells and cytokines to the lymphatic nodes and lymphoid tissues where inflammatory cells can be sensitized and activated. Or, blood vessels may deliver sensitized inflammatory cells and cytokines to the inflammatory site of the vascular wall. Therefore, both lymphatic and blood vessels constitute a complete circle of immune response, whereby the inflammatory cells and cytokines are effectively delivered to tissues and their effects magnified. Under certain circumstances, this situation may lead to a vicious circle of inflammation such as in atherosclerosis, resulting in perpetuating intimal hyperplasia and vascular remodeling. Inhibition of lymphangiogenesis may interrupt this self-perpetuating vicious circle of inflammation in atherosclerosis and provide a new approach to the prevention and treatment of the disease.
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Affiliation(s)
- Xinsheng Xu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Shandong University Qilu Hospital, No.107, Wen Hua Xi Road, Jinan, Shandong 250012, China
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Baluk P, Tammela T, Ator E, Lyubynska N, Achen MG, Hicklin DJ, Jeltsch M, Petrova TV, Pytowski B, Stacker SA, Ylä-Herttuala S, Jackson DG, Alitalo K, McDonald DM. Pathogenesis of persistent lymphatic vessel hyperplasia in chronic airway inflammation. J Clin Invest 2005; 115:247-57. [PMID: 15668734 PMCID: PMC544601 DOI: 10.1172/jci22037] [Citation(s) in RCA: 260] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2004] [Accepted: 11/30/2004] [Indexed: 01/04/2023] Open
Abstract
Edema occurs in asthma and other inflammatory diseases when the rate of plasma leakage from blood vessels exceeds the drainage through lymphatic vessels and other routes. It is unclear to what extent lymphatic vessels grow to compensate for increased leakage during inflammation and what drives the lymphangiogenesis that does occur. We addressed these issues in mouse models of (a) chronic respiratory tract infection with Mycoplasma pulmonis and (b) adenoviral transduction of airway epithelium with VEGF family growth factors. Blood vessel remodeling and lymphangiogenesis were both robust in infected airways. Inhibition of VEGFR-3 signaling completely prevented the growth of lymphatic vessels but not blood vessels. Lack of lymphatic growth exaggerated mucosal edema and reduced the hypertrophy of draining lymph nodes. Airway dendritic cells, macrophages, neutrophils, and epithelial cells expressed the VEGFR-3 ligands VEGF-C or VEGF-D. Adenoviral delivery of either VEGF-C or VEGF-D evoked lymphangiogenesis without angiogenesis, whereas adenoviral VEGF had the opposite effect. After antibiotic treatment of the infection, inflammation and remodeling of blood vessels quickly subsided, but lymphatic vessels persisted. Together, these findings suggest that when lymphangiogenesis is impaired, airway inflammation may lead to bronchial lymphedema and exaggerated airflow obstruction. Correction of defective lymphangiogenesis may benefit the treatment of asthma and other inflammatory airway diseases.
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Affiliation(s)
- Peter Baluk
- Cardiovascular Research Institute, Comprehensive Cancer Center, and Department of Anatomy, UCSF, San Francisco, California 94143, USA
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Baluk P, Tammela T, Ator E, Lyubynska N, Achen MG, Hicklin DJ, Jeltsch M, Petrova TV, Pytowski B, Stacker SA, Ylä-Herttuala S, Jackson DG, Alitalo K, McDonald DM. Pathogenesis of persistent lymphatic vessel hyperplasia in chronic airway inflammation. J Clin Invest 2005. [DOI: 10.1172/jci200522037] [Citation(s) in RCA: 448] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Hamrah P, Chen L, Cursiefen C, Zhang Q, Joyce NC, Dana MR. Expression of vascular endothelial growth factor receptor-3 (VEGFR-3) on monocytic bone marrow-derived cells in the conjunctiva. Exp Eye Res 2004; 79:553-61. [PMID: 15381039 DOI: 10.1016/j.exer.2004.06.028] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2003] [Accepted: 06/29/2004] [Indexed: 02/08/2023]
Abstract
Vascular endothelial growth factor-3 (VEGFR-3), also known as Fms-like tyrosine kinase receptor 4 (FLT-4), was thought to be expressed exclusively on the lymphatic endothelium, high endothelial venules, and rarely on vascular endothelium. It plays a critical role in the development of lymphatics and cancer metastasis. Very recently, however, VEGFR-3 expression has been identified on dendritic cells (DCs) in the inflamed cornea, and related to the trafficking of these cells to lymphoid organs. The current study was performed to evaluate the expression of VEGFR-3 in the conjunctiva. The conjunctiva and limbus of normal and inflamed murine eyes were excised and stained for VEGFR-3. Immunofluorescence double staining for CD11b, CD11c, CD31, CD45, GR-1, CD3, CD80, LYVE-1 and class II major histocompatibility complex (MHC) antigen expression, using confocal microscopy, was performed to further phenotype the VEGFR-3+ cells. VEGFR-3 and LYVE-1 expression was observed on lymphatic, but not blood vessel, endothelium. In addition, we also detected expression of VEGFR-3 on non-endothelial CD45+ bone marrow-derived cells in the conjunctiva of normal and, in an increased number, in inflamed eyes. These cells were uniformly CD11b+, CD3-, and Gr-1-, suggesting a monocytic origin, similar to the VEGFR-3+ cells in the cornea. Nearly half of the VEGFR-3+ cells were also positive for MHC class II expression, and none were positive for CD80 (B7-1), indicating their relative immature status. In contrast to the recently described VEGFR3+ corneal cells, however, VEGFR-3+ conjunctival cells did not express the DC marker CD11c. We conclude that in addition to its known role in lymphangiogenesis, VEGFR-3 is also expressed by a conjunctival monocyte/macrophage lineage, implicating a potential relationship between lymphangiogenesis and leukocyte trafficking in the ocular surface.
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Affiliation(s)
- Pedram Hamrah
- Laboratory of Immunology, Schepens Eye Research Institute, Harvard Medical School, 20 Staniford Street, Boston, MA 02114, USA.
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Chen L, Hamrah P, Cursiefen C, Zhang Q, Pytowski B, Streilein JW, Dana MR. Vascular endothelial growth factor receptor-3 mediates induction of corneal alloimmunity. Nat Med 2004; 10:813-5. [PMID: 15235599 DOI: 10.1038/nm1078] [Citation(s) in RCA: 170] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2004] [Accepted: 06/16/2004] [Indexed: 11/09/2022]
Abstract
There are no studies so far linking molecular regulation of lymphangiogenesis and induction of adaptive immunity. Here, we show that blockade of vascular endothelial growth factor receptor-3 (VEGFR-3) signaling significantly suppresses corneal antigen-presenting (dendritic) cell trafficking to draining lymph nodes, induction of delayed-type hypersensitivity and rejection of corneal transplants. Regulating the function of VEGFR-3 may therefore be a mechanism for modulating adaptive immunity in the periphery.
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Affiliation(s)
- Lu Chen
- Laboratory of Immunology, Schepens Eye Research Institute and the Massachusetts Eye and Ear Infirmary and Department of Ophthalmology, Harvard Medical School, 20 Staniford Street, Boston, Massachusetts, USA
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Hamrah P, Chen L, Zhang Q, Dana MR. Novel expression of vascular endothelial growth factor receptor (VEGFR)-3 and VEGF-C on corneal dendritic cells. THE AMERICAN JOURNAL OF PATHOLOGY 2003; 163:57-68. [PMID: 12819011 PMCID: PMC1868166 DOI: 10.1016/s0002-9440(10)63630-9] [Citation(s) in RCA: 111] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Vascular endothelial growth factor-3 (VEGFR-3) plays a critical role in embryonic cardiovascular development and is thought to be expressed exclusively on the lymphatic endothelium, high endothelial venules, and rarely on adult vascular endothelium. Recent evidence also suggests expression of VEGFR-3 on some tumor-associated macrophages. We have studied the expression of VEGFR-3, its ligand VEGF-C and the co-receptor neuropilin-2, in normal and inflamed corneas and characterized the phenotype and distribution of VEGFR-3(+) cells. Our data demonstrate, for the first time, the expression of VEGFR-3 on corneal dendritic cells (DC) and its up-regulation in inflammation. VEGFR-3(+) DC are CD11c(+)CD45(+)CD11b(+), and are mostly major histocompatibility (MHC) class II(-)CD80(-)CD86(-), indicating immature DC of a monocytic lineage. During inflammation, there is rapid increase in the number of VEGFR-3(+) DC in the cornea associated with heightened membranous expression as compared to a mostly intracellular expression in uninflamed tissue. VEGFR-3(+) DC in normal corneas are VEGF-C(-)neuropilin-2(-), but express VEGF-C in inflammation. Interestingly, similar cells are absent both in the normal and inflamed skin. These data demonstrate, for the first time, the expression of VEGFR-3 and VEGF-C on tissue DC, which implicate a novel potential relationship between lymphangiogenesis and leukocyte trafficking in the eye.
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Affiliation(s)
- Pedram Hamrah
- Laboratory of Immunology, Schepens Eye Research Institute and the Massachusetts Eye and Ear Infirmary and Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA.
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Hamrah P, Zhang Q, Dana MR. Expression of vascular endothelial growth factor receptor-3 (VEGFR-3) in the conjunctiva--a potential link between lymphangiogenesis and leukocyte trafficking on the ocular surface. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2003; 506:851-60. [PMID: 12614002 DOI: 10.1007/978-1-4615-0717-8_120] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
- Pedram Hamrah
- Laboratory of Immunology, Schepens Eye Research Institute and the Department of Ophthalmology Harvard Medical School Boston, Massachusetts, USA
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Cursiefen C, Chen L, Dana MR, Streilein JW. Corneal lymphangiogenesis: evidence, mechanisms, and implications for corneal transplant immunology. Cornea 2003; 22:273-81. [PMID: 12658100 DOI: 10.1097/00003226-200304000-00021] [Citation(s) in RCA: 143] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
PURPOSE The normal cornea is devoid of blood and lymphatic vessels but can become vascularized secondary to a variety of corneal diseases and surgical manipulations. Whereas corneal (hem)angiogenesis, i.e., the outgrowth of new blood vessels from preexisting limbal vessels, is obvious both clinically and histologically, proof of associated corneal lymphangiogenesis has long been hampered by invisibility and lack of specific markers. This has changed with the recent discovery of the lymphatic endothelial markers vascular endothelial growth factor receptor 3, LYVE-1 (a lymphatic endothelium-specific hyaluronan receptor), Prox 1, and Podoplanin. METHODS We herein summarize the current evidence for lymphangiogenesis in the cornea and describe its molecular markers and mediators. Furthermore, the pathophysiologic implications of corneal lymphangiogenesis for corneal transplant immunology are discussed. RESULTS Whereas corneal angiogenesis in vascularized high-risk beds provides a route of entry for immune effector cells to the graft, lymphangiogenesis enables the exit of antigen-presenting cells and antigenic material from the graft to regional lymph nodes, thus inducing alloimmunization and subsequent graft rejection. CONCLUSIONS Antilymphangiogenic strategies may improve transplant survival both in the high- and low-risk setting of corneal transplantation.
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Affiliation(s)
- Claus Cursiefen
- The Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts 02114, USA.
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Mimura T, Amano S, Usui T, Kaji Y, Oshika T, Ishii Y. Expression of vascular endothelial growth factor C and vascular endothelial growth factor receptor 3 in corneal lymphangiogenesis. Exp Eye Res 2001; 72:71-8. [PMID: 11133184 DOI: 10.1006/exer.2000.0925] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Lymphangiogenesis has been reported in vascularized corneas. However, the molecular mechanisms of lymphangiogenesis in the cornea are still unclear. Since lymphatic vessels may contribute to a decreased success rate of keratoplasty in vascularized cornea by accelerating antigen recognition and graft rejection, elucidation of the mechanisms of corneal lymphangiogenesis will facilitate the inhibition of lymphatic vessels and may improve the outcome of keratoplasty. This study aimed to examine the expression of vascular endothelial growth factor-C (VEGF-C), which is the only endogenous lymphangiogenic factor reported so far, and one of its receptors, vascular endothelial growth factor receptor-3 (VEGFR-3), in corneal lymphangiogenesis. A rat model was used in which silver nitrate application resulted in corneal circumferential neovascularization. The presence of lymphatic vessels in the rat injured cornea was examined with electron microscope. Corneal VEGF-C and VEGFR-3 mRNA levels were quantified with competitive reverse transcription polymerase chain reaction (RT-PCR), and VEGF-C and VEGFR-3 proteins were studied in situ using immunohistochemical analysis. Electron microscopy revealed lymphatic vessels in the vascularized rat corneas. Competitive RT-PCR demonstrated that the expression of VEGF-C mRNA in the rat cornea was normally absent, and was dramatically up-regulated 3 days after the injury, which gradually decreased. The VEGFR-3 expression in the rat cornea was minimally detected before the injury and was up-regulated 3 and 7 days after the injury. It was also minimally detected 2 and 4 weeks after the injury. In immunohistochemical analysis of the rat cornea 3 days after the injury, VEGF-C was mainly detected in inflammatory cells, and VEGFR-3 was demonstrated in several new vessels in the corneal stroma. These data suggest that VEGF-C and VEGFR-3 are pathophysiologically relevant endogenous factors in corneal lymphangiogenesis.
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Affiliation(s)
- T Mimura
- Department of Ophthalmology, University of Tokyo School of Medicine, Tokyo, Japan
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Abstract
Steroids are widely used in the prevention of corneal neovascularization in a wide range of natural and experimental situations. However, no information is available on their effect on the growth of the individual limbal blood vascular cells or of lymphatic cells involved in corneal neovascularization. In addition, tritiated thymidine labelling index is commonly used as an indicator of cell population but doubt exists as to whether it truly represents cell growth. Remote thermal cautery of the rat cornea was used to elicit corneal neovascularization. New cell growth was measured by tritiated thymidine uptake and by the number of cell nuclei per section. Cells investigated were the arteriolar, venular, capillary and lymphatic endothelial cells as well as the arteriolar and venular perivascular cells. A total of 89,320 blood vascular endothelial and perivascular cell nuclei and 12,075 lymphatic nuclei were counted. Thermal cautery elicited a significant increase in labelling index and cell population of all limbal vascular cell types. Steroid application elicited a significant short term inhibition or delay for all six cell types although this was not apparent for venular endothelial cells using labelling index as a growth indicator. At six days only the lymphatic endothelial cell population showed a significant (p < 0.001) increase associated with steroid use.
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Affiliation(s)
- G C Boneham
- School of Optometry, University of New South Wales, Kensington, Australia
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Pearson JM, McWilliam LJ. A light microscopical, immunohistochemical, and ultrastructural comparison of hemangiomata and lymphangiomata. Ultrastruct Pathol 1990; 14:497-504. [PMID: 2281548 DOI: 10.3109/01913129009076136] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this study we have compared the light microscopical, immunohistochemical, and ultrastructural features of five hemangiomata of the dermis with five lymphangiomata of the dermis and subcutaneous tissue. We have attempted to define differentiating features with regard to the ultrastructural appearances and the immunohistochemical staining for the endothelial markers factor VIII-related antigen (FVIII:RAg) and Ulex europaeus agglutinin I (UEA-I). In addition, immunolocalization of FVIII:RAg at the ultrastructural level was performed to compare its distribution within endothelial cells of neoplastic blood vessels and lymphatic vessels. The results show that immunohistochemical staining for FVIII:RAg and UEA-I does not differentiate between blood and lymphatic vessels. However, the presence of a fragmented basal lamina and anchoring filaments does distinguish lymphatic vessels from blood vessels ultrastructurally.
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Affiliation(s)
- J M Pearson
- University Department of Histopathology, University Hospital of South Manchester, West Didsbury
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Shinohara H, Nakatani T, Matsuda T. Postnatal development of the ovarian bursa of the golden hamster (Mesocricetus auratus): its complete closure and morphogenesis of lymphatic stomata. THE AMERICAN JOURNAL OF ANATOMY 1987; 179:385-402. [PMID: 3661460 DOI: 10.1002/aja.1001790408] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The golden hamster ovarian bursa was studied by light and electron microscopy to clarify the process of its complete closure and the development of lymphatics that leads to morphogenesis of stomata. The results were as follows. 1) The bursa completely closed at 9 days of age primarily due to development of the mesotubarium superius. 2) With the closure, the ovary and bursa became closely apposed, and most of the original bursal cavity disappeared. 3) Between 9 and 12 days of age U-shaped folds of the bursal mesothelium began to invade the connective tissue of the bursa. 4) Widening of the internal angle of the U-shaped folds contributed to reappearance of the bursal cavity, and thus separation of the bursa from the ovary. It also contributed to future geometrical proximity of lymphatics to the cavity of the bursa. 5) The separation of the bursa from the ovary began as early as 12 days of age in the cephalic half of the bursa. It occurred remarkably late in the caudal half. Juxtaposition of the window portion of the bursa to the ovary remained in some adult animals. 6) Development of lymphatics in the cephalic half of the bursa was divided into two stages, before and after days 21-24 of life. In the first stage, lymphatics grew in the submesothelial connective tissue, and the framework of lymphatics was formed. In the second stage, lymphatics extended small branches to form the submesothelial plexus or lymphatic lacuna. 7) Intercellular junctions between contiguous lymphatic endothelial cells were mostly tight and desmosomelike. Open junctions were, if they occurred at all, rare. (8) A smooth-surfaced area lined with the lymphatic endothelium was found in the bursa on day 27 of life, before the initiation of ovulation. Valvelike stomal orifices were absent before the initiation of ovulation and extremely rare even after the first ovulation. They were commonly present in the bursae after the fourth ovulation, however. The process of complete closure of the ovarian bursa is very complex and may be related to the later development of the bursal mesothelium and lymphatics. Some liplike stomal orifices are of purely developmental origin. However, all valvelike stomal orifices are assumed to be formed as a result of damage to the bursal mesothelium, as well as to the submesothelial connective tissue and lymphatics, by repetition of ovulation. It is possible that liplike stomal orifices may be formed in the process of repairing the damage.
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Affiliation(s)
- H Shinohara
- Department of Anatomy I, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Japan
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Collin HB. Ocular Oedema*. Clin Exp Optom 1974. [DOI: 10.1111/j.1444-0938.1974.tb04279.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Collin HB. Ocular Drains and Disposal. Clin Exp Optom 1972. [DOI: 10.1111/j.1444-0938.1972.tb02744.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- H. Barry Collin
- Senior Lecturer, Victorian College of Optometry, University of Melbourne
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