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Lymphangiogenesis

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https://www.readbyqxmd.com/read/28087639/vegfd-modulates-both-angiogenesis-and-lymphangiogenesis-during-zebrafish-embryonic-development
#1
Neil I Bower, Adam J Vogrin, Ludovic Le Guen, Huijun Chen, Steven A Stacker, Marc G Achen, Benjamin M Hogan
Vascular endothelial growth factors (VEGFs) control angiogenesis and lymphangiogenesis during development and in pathological conditions. In the zebrafish trunk, Vegfa controls the formation of intersegmental arteries by primary angiogenesis and Vegfc is essential for secondary angiogenesis, the formation of veins and lymphatics. VEGFD has been largely thought of as dispensable for vascular development in vertebrates. Here, we generated a zebrafish vegfd mutant by genome editing. vegfd mutants display significant defects in facial lymphangiogenesis independent of vegfc function...
January 13, 2017: Development
https://www.readbyqxmd.com/read/28087600/sunitinib-stimulates-expression-of-vegfc-by-tumor-cells-and-promotes-lymphangiogenesis-in-clear-cell-renal-cell-carcinomas
#2
Maeva Dufies, Sandy Giuliano, Damien Ambrosetti, Audrey Claren, Papa Diogop Ndiaye, Michalis Mastri, Walid Moghrabi, Lindsay S Cooley, Marc Ettaiche, Emmanuel Chamorey, Julien Parola, Valerie Vial, Marilena Lupu-Plesu, Jean-Christophe Bernhard, Alain Ravaud, Delphine Borchiellini, Jean Marc Ferrero, Andreas Bikfalvi, John M L Ebos, Khalid S A Khabar, Renaud Grepin, Gilles Pagès
Sunitinib is an antiangiogenic therapy given as a first-line treatment for renal cell carcinoma (RCC). While treatment improves progression-free survival, most patients relapse. We hypothesized that patient relapse can stem from the development of a lymphatic network driven by the production of the main growth factor for lymphatic endothelial cells, vascular endothelial growth factor C (VEGFC). In this study, we found that sunitinib can stimulate VEGFC gene transcription and increase VEGFC mRNA half-life. Additionally, sunitinib activated p38 MAP kinase, which resulted in the upregulation/activity of HuR and inactivation of tristetraprolin, two AU-rich-element binding proteins...
January 13, 2017: Cancer Research
https://www.readbyqxmd.com/read/28081372/role-of-hyperplasia-of-gingival-lymphatics-in-periodontal-inflammation
#3
P Papadakou, A Bletsa, M A Yassin, T V Karlsen, H Wiig, E Berggreen
Lymphatic vessels are important for maintenance of tissue fluid homeostasis and afferent antigen transport. In chronic inflammation, lymphangiogenesis takes place and is characterized by lymphatic endothelial cell proliferation and lymphatic hyperplasia. Vascular endothelial growth factor C (VEGFC) is the main known lymphangiogenic growth factor, and its expression is increased in periodontitis, a common chronic infectious disease that results in tissue destruction and alveolar bone loss. The role of lymphangiogenesis during development of periodontitis is unknown...
December 1, 2016: Journal of Dental Research
https://www.readbyqxmd.com/read/28061513/angiopoietin-2-blockade-promotes-survival-of-corneal-transplants
#4
Liwei Zhang, Guangyu Li, Roberto Sessa, Gyeong Jin Kang, Meng Shi, Shaokui Ge, Anna Jiang Gong, Ying Wen, Sudhakar Chintharlapalli, Lu Chen
Purpose: Corneal transplantation remains the last hope for vision restoration, and lymphangiogenesis (LG) is a primary mediator of transplant rejection. This study was to investigate the specific role of angiopoietin-2 (Ang-2) in transplantation-associated LG and graft rejection. Methods: Orthotopic corneal transplantation was performed between fully mismatched C57BL/6 (donor) and BALB/c (recipient) mice to assess the effects of Ang-2 blockade via neutralizing antibody...
January 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28056899/pge2-promotes-breast-cancer-associated-lymphangiogenesis-by-activation-of-ep4-receptor-on-lymphatic-endothelial-cells
#5
Pinki Nandi, Gannareddy V Girish, Mousumi Majumder, Xiping Xin, Elena Tutunea-Fatan, Peeyush K Lala
BACKGROUND: Lymphatic metastasis, facilitated by lymphangiogenesis is a common occurrence in breast cancer, the molecular mechanisms remaining incompletely understood. We had earlier shown that cyclooxygenase (COX)-2 expression by human or murine breast cancer cells promoted lymphangiogenesis and lymphatic metastasis by upregulating VEGF-C/D production by tumor cells or tumor-associated macrophages primarily due to activation of the prostaglandin receptor EP4 by endogenous PGE2. It is not clear whether tumor or host-derived PGE2 has any direct effect on lymphangiogenesis, and if so, whether EP4 receptors on lymphatic endothelial cells (LEC) play any role...
January 5, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28044065/lymphangiogenesis-a-new-player-in-herpes-simplex-virus-1-triggered-t-cell-response
#6
Roberto Sessa, Lu Chen
No abstract text is available yet for this article.
January 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28036019/lymph-nodes-and-cancer-metastasis-new-perspectives-on-the-role-of-intranodal-lymphatic-sinuses
#7
REVIEW
Rui-Cheng Ji
The lymphatic system is essential for transporting interstitial fluid, soluble antigen, and immune cells from peripheral tissues to lymph nodes (LNs). Functional integrity of LNs is dependent on intact lymphatics and effective lymph drainage. Molecular mechanisms that facilitate interactions between tumor cells and lymphatic endothelial cells (LECs) during tumor progression still remain to be identified. The cellular and molecular structures of LNs are optimized to trigger a rapid and efficient immune response, and to participate in the process of tumor metastasis by stimulating lymphangiogenesis and establishing a premetastatic niche in LNs...
December 28, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28024299/the-role-of-fatty-acid-%C3%AE-oxidation-in-lymphangiogenesis
#8
Brian W Wong, Xingwu Wang, Annalisa Zecchin, Bernard Thienpont, Ivo Cornelissen, Joanna Kalucka, Melissa García-Caballero, Rindert Missiaen, Hongling Huang, Ulrike Brüning, Silvia Blacher, Stefan Vinckier, Jermaine Goveia, Marlen Knobloch, Hui Zhao, Cathrin Dierkes, Chenyan Shi, René Hägerling, Veronica Moral-Dardé, Sabine Wyns, Martin Lippens, Sebastian Jessberger, Sarah-Maria Fendt, Aernout Luttun, Agnès Noel, Friedemann Kiefer, Bart Ghesquière, Lieve Moons, Luc Schoonjans, Mieke Dewerchin, Guy Eelen, Diether Lambrechts, Peter Carmeliet
Lymphatic vessels are lined by lymphatic endothelial cells (LECs), and are critical for health. However, the role of metabolism in lymphatic development has not yet been elucidated. Here we report that in transgenic mouse models, LEC-specific loss of CPT1A, a rate-controlling enzyme in fatty acid β-oxidation, impairs lymphatic development. LECs use fatty acid β-oxidation to proliferate and for epigenetic regulation of lymphatic marker expression during LEC differentiation. Mechanistically, the transcription factor PROX1 upregulates CPT1A expression, which increases acetyl coenzyme A production dependent on fatty acid β-oxidation...
December 26, 2016: Nature
https://www.readbyqxmd.com/read/28004375/gorham-stout-disease-a-clinical-case-report-and-immunological-mechanisms-in-bone-erosion
#9
REVIEW
Maria José Franco-Barrera, Maria Guadalupe Zavala-Cerna, Georgina Aguilar-Portillo, Diana Brisa Sánchez-Gomez, Olivia Torres-Bugarin, Miguel Angel Franco-Barrera, Carlos Manuel Roa-Encarnacion
Gorham-Stout disease (GSD) is a rare condition of osteolysis with excessive lymphangiogenesis within bone tissue. The etiology of this condition remains unknown but seems to affect mainly children and young adults of both genders all over the world. Unfortunately, there is no standardized method for diagnosis; however, histopathology remains as the gold standard. This condition is often misdiagnosed due to its varying clinical presentations from case-to-case. Here, we report the case of an 8-year-old girl who presented with chronic mandibular pain during mastication and received multiple antibiotic treatment due to infectious origin suspicion...
December 21, 2016: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28000859/131i-labeled-monoclonal-antibody-targeting-neuropilin-receptor-type-2-for-tumor-spect-imaging
#10
Lichun Chen, Liangliang Wang, Jianghua Yan, Chao Ma, Jing Lu, Guoqiang Chen, Shengyou Chen, Fu Su, Weixing Wang, Xinhui Su
As a co-receptor for vascular endothelial growth factor‑3 (VEGF‑3), neuropilin receptor type‑2 (NRP‑2) plays a central role in lymphangiogenesis and angiogenesis. Recently, mounting data of evidence show that NRP‑2 is overexpressed in several human cancers, and its overexpression is often associated with poor prognosis. Therefore, it is necessary for us to develop an affinity reagent for noninvasive imaging of NRP‑2 expression because it may be possible to provide early cancer diagnosis, more accurate prognosis, and better treatment planning...
December 16, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27991863/carbohydrate-binding-protein-clec14a-regulates-vegfr-2-and-vegfr-3-dependent-signals-during-angiogenesis-and-lymphangiogenesis
#11
Sungwoon Lee, Seung-Sik Rho, Hyojin Park, Jeong Ae Park, Jihye Kim, In-Kyu Lee, Gou Young Koh, Naoki Mochizuki, Young-Myeong Kim, Young-Guen Kwon
Controlled angiogenesis and lymphangiogenesis are essential for tissue development, function, and repair. However, aberrant neovascularization is an essential pathogenic mechanism in many human diseases, including diseases involving tumor growth and survival. Here, we have demonstrated that mice deficient in C-type lectin family 14 member A (CLEC14A) display enhanced angiogenic sprouting and hemorrhage as well as enlarged jugular lymph sacs and lymphatic vessels. CLEC14A formed a complex with VEGFR-3 in endothelial cells (ECs), and CLEC14A KO resulted in a marked reduction in VEGFR-3 that was concomitant with increases in VEGFR-2 expression and downstream signaling...
December 19, 2016: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27975071/new-mechanisms-of-tumor-associated-macrophages-on-promoting-tumor-progression-recent-research-advances-and-potential-targets-for-tumor-immunotherapy
#12
REVIEW
Qiujun Guo, Zhichao Jin, Yuan Yuan, Rui Liu, Tao Xu, Huamin Wei, Xinyao Xu, Shulin He, Shuntai Chen, Zhan Shi, Wei Hou, Baojin Hua
The majority of basic and clinical studies have shown a protumor function of tumor-associated macrophages (TAMs), which represent a large proportion of matrix cells. TAMs promote tumorigenesis, and their number is related to the malignancy degree and poor prognosis of many kinds of tumors. Macrophage plasticity makes it possible to change the tumor microenvironment and remodel antitumor immunity during cancer immunotherapy. Increasing numbers of studies have revealed the effects of TAMs on the tumor microenvironment, for example, via promotion of tumor growth and tumorigenesis and through an increase in the number of cancer stem cells or via facilitation of angiogenesis, lymphangiogenesis, and metastasis...
2016: Journal of Immunology Research
https://www.readbyqxmd.com/read/27965673/the-role-of-lymphatic-endothelial-cells-in-liver-injury-and-tumor-development
#13
REVIEW
Veronika Lukacs-Kornek
Lymphatics and lymphatic endothelial cells (LECs) possess multiple immunological functions besides affecting immune cell migration, such as inhibiting T cell proliferation and antigen presentation by dendritic cells. Moreover, they control the trans-endothelial transport of multiple molecules and antigens. Emerging evidence suggest their active involvements in immunregulation, tumor, and metastases formation. In the liver, increased lymphangiogenesis, specifically at the portal area has been associated with multiple liver diseases in particular primary biliary cirrhosis, idiopathic portal hypertension, and liver malignancies...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27942023/lymph-node-transplantation-decreases-swelling-and-restores-immune-responses-in-a-transgenic-model-of-lymphedema
#14
Jung-Ju Huang, Jason C Gardenier, Geoffrey E Hespe, Gabriela D García Nores, Raghu P Kataru, Catherine L Ly, Inés Martínez-Corral, Sagrario Ortega, Babak J Mehrara
INTRODUCTION: Secondary lymphedema is a common complication of cancer treatment and recent studies have demonstrated that lymph node transplantation (LNT) can decrease swelling, as well as the incidence of infections. However, although these results are exciting, the mechanisms by which LNT improves these pathologic findings of lymphedema remain unknown. Using a transgenic mouse model of lymphedema, this study sought to analyze the effect of LNT on lymphatic regeneration and T cell-mediated immune responses...
2016: PloS One
https://www.readbyqxmd.com/read/27939650/the-increased-number-of-tumor-associated-macrophage-is-associated-with-overexpression-of-vegf-c-plays-an-important-role-in-kazakh-escc-invasion-and-metastasis
#15
Jian Ming Hu, Kai Liu, Ji Hong Liu, Xian Li Jiang, Xue Li Wang, Lan Yang, Yun Zhao Chen, Chun Xia Liu, Shu Gang Li, Xiao Bin Cui, Hong Zou, Li Juan Pang, Jin Zhao, Yan Qi, Wei Hua Liang, Xiang Lin Yuan, Feng Li
Tumor associated macrophages (TAMs) play an important role in the growth, progression, and metastasis of tumors. The distribution of TAMs in Kazakh esophageal squamous cell carcinoma (ESCC) is not determined. We aimed to investigate the role of TAMs in the occurrence and progression of Kazakh ESCC. CD163 was used as the TAM marker, and immunohistochemistry (IHC) counts were used to quantify the density of TAMs in tumor nest and surrounding stroma. IHC staining was used to evaluate the expression of vascular endothelial growth factor C (VEGF-C) in Kazakh ESCC and cancer adjacent normal (CAN) tissues...
December 7, 2016: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/27918829/identification-of-novel-endogenous-anti-lymph-angiogenic-factors-in-the-aqueous-humor
#16
Felix Bock, Jasmine Onderka, Gabriele Braun, Ann-Charlott Schneider, Deniz Hos, Yanlong Bi, Björn O Bachmann, Claus Cursiefen
Purpose: The avascular cornea is in direct contact with aqueous humor (AqH). Here we investigate whether AqH exerts anti(lymph)angiogenic effects and thereby may contribute to corneal (lymph)angiogenic privilege. Methods: Using the murine model of suture-induced inflammatory corneal hem- and lymphangiogenesis, the potential anti(lymph)angiogenic effect of AqH was analyzed by applying murine AqH as eyedrops. Anti(lymph)angiogenic effects were measured using morphometric analysis of flat mounts stained with CD31 as panendothelial and LYVE-1 as specific lymphatic endothelial marker...
December 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27918556/effects-of-fatty-acid-synthase-inhibitors-on-lymphatic-vessels-an-in-vitro-and-in-vivo-study-in-a-melanoma-model
#17
Débora C Bastos, Jenny Paupert, Catherine Maillard, Fabiana Seguin, Marco A Carvalho, Michelle Agostini, Ricardo D Coletta, Agnès Noël, Edgard Graner
Fatty acid synthase (FASN) is responsible for the endogenous production of fatty acids from acetyl-CoA and malonyl-CoA. Its overexpression is associated with poor prognosis in human cancers including melanomas. Our group has previously shown that the inhibition of FASN with orlistat reduces spontaneous lymphatic metastasis in experimental B16-F10 melanomas, which is a consequence, at least in part, of the reduction of proliferation and induction of apoptosis. Here, we sought to investigate the effects of pharmacological FASN inhibition on lymphatic vessels by using cell culture and mouse models...
December 5, 2016: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/27912840/the-semaphorins-and-their-receptors-as-modulators-of-tumor-progression
#18
Gera Neufeld, Yelena Mumblat, Tanya Smolkin, Shira Toledano, Inbal Nir-Zvi, Keren Ziv, Ofra Kessler
The semaphorins were initially characterized as repulsive axon guidance factors. However, they are currently also recognized as important regulators of diverse biological processes which include regulation of immune responses, angiogenesis, organogenesis, and a variety of additional physiological and developmental functions. The semaphorin family consists of more than 20 genes divided into seven subfamilies, all of which contain the sema domain signature. They usually transduce signals by activation of receptors belonging to the plexin family, either directly, or indirectly following the binding of some semaphorins to receptors of the neuropilin family which subsequently associate with plexins...
November 2016: Drug Resistance Updates: Reviews and Commentaries in Antimicrobial and Anticancer Chemotherapy
https://www.readbyqxmd.com/read/27904683/rapamycin-targets-interleukin-6-il-6-expression-and-suppresses-endothelial-cell-invasion-stimulated-by-tumor-cells
#19
Oleksandr Ekshyyan, Alok R Khandelwal, Xiaohua Rong, Tara Moore-Medlin, Xiaohui Ma, Jonathan Steven Alexander, Cherie-Ann O Nathan
mTOR inhibitors have potent antiangiogenic and anti-lymphangiogenic effects in addition to their growth inhibitory effects in head and neck squamous cell carcinoma (HNSCC). Lymphatogenous spread is much more predominant in HNSCC than hematogenous spread and significantly decreases survival. In this study we evaluated the effects of rapamycin on targeting tumor-stroma crosstalk in HNSCC. HNSCC tumor cells (FaDu) and human lymphatic endothelial cells (HMEC-1A) were co-cultured in various combinations using transwell cell culture inserts to study tumor-stroma crosstalk and the effects of mTOR inhibitor rapamycin...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27895746/rnai-mediated-gene-silencing-of-vascular-endothelial-growth-factor-c-suppresses-growth-and-induces-apoptosis-in-mouse-breast-cancer-in-vitro-and-in-vivo
#20
Yong-Chao Liu, Wen-Hui Ma, Yin-Lin Ge, Mei-Lan Xue, Zheng Zhang, Jin-Yu Zhang, Lin Hou, Run-Hong Mu
Vascular endothelial cell growth factor (VEGF)-C promotes tumorigenesis by allowing lymph node metastasis and lymphangiogenesis, among other actions. RNA interference (RNAi) is a novel technique for suppressing target gene expression and may increase the effectiveness of cancer treatments. The present study assessed the influence of VEGF-C RNAi on the apoptosis and proliferation of mouse breast cancer cells in vitro and in vivo. A total of three pairs of small interfering RNA (siRNA) targeting mouse VEGF-C were designed and synthesized prior to transfection into 4T1 cells via a liposomal approach...
November 2016: Oncology Letters
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