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Podoplanin

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https://www.readbyqxmd.com/read/29328453/aldosterone-is-involved-in-the-pathogenesis-of-obesity-related-glomerulopathy-through-activation-of-wnt-%C3%AE-catenin-signaling-in-podocytes
#1
Jia-Jia Zhu, Yi-Pu Chen, Min Yang, Bao-Li Liu, Jing Dong, Hong-Rui Dong, Hong-Liang Rui, Hong Cheng
Obesity-related glomerulopathy (ORG) is morphologically characterized by glomerulomegaly with or without observable focal segmental glomerulosclerosis under light microscope, with decreased podocyte density and number, and with increased foot‑process width observed under electron microscope. The severity of podocyte injury is correlated with the degree of proteinuria and renal dysfunction. However, the pathogenesis of ORG is not well understood. The aim of the present study was to explore the possible pathogenic role of aldosterone (ALDO) in ORG...
January 5, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29310601/moesin-expression-by-tumor-cells-is-an-unfavorable-prognostic-biomarker-for-oral-cancer
#2
Francisco Bárbara Abreu Barros, Agnes Assao, Natália Galvão Garcia, Suely Nonogaki, André Lopes Carvalho, Fernando Augusto Soares, Luiz Paulo Kowalski, Denise Tostes Oliveira
BACKGROUND: Moesin is a member of the ERM (ezrin, radixin and moesin) proteins that participate in cell migration and tumor invasion through transductional signals sent to actin filaments by glycoproteins, such as podoplanin. METHODS: This study aimed to evaluate the participation of moesin and podoplanin in the invasive tumor front of oral squamous cell carcinomas, and their influence on patients' prognosis. Podoplanin and moesin immunoexpressions were evaluated by a semi-quantitative score method, based on the capture of 10 microscopic fields, at 400X magnification, in the invasive tumor front of oral squamous cell carcinomas...
January 8, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29290263/abundant-tumor-promoting-stromal-cells-in-lung-adenocarcinoma-with-hypoxic-regions
#3
Hiroshi Nakamura, Tomohiro Ichikawa, Shoko Nakasone, Tomohiro Miyoshi, Masato Sugano, Motohiro Kojima, Satoshi Fujii, Atsushi Ochiai, Takeshi Kuwata, Keiju Aokage, Kenji Suzuki, Masahiro Tsuboi, Genichiro Ishii
OBJECTIVES: Carbonic anhydrase IX (CAIX) is a marker of hypoxia and its expression by cancer associated fibroblasts (CAFs) was reportedly associated with the poor prognosis of lung adenocarcinoma. This study aimed to characterize the hypoxic microenvironment containing CAIX (+) CAFs. MATERIALS AND METHODS: First, we evaluated the clinicopathological significance of CAIX expression by CAFs in 3cm and above lung adenocarcinoma (n=188). We then compared the expressions of E-cadherin, ezrin, ALDH-1, CD44, EGFR, HSF-1, Glut-1, and PD-L1 in cancer cells, as well as those of CD204 and podoplanin in stromal cells between CAIX (+) CAFs and CAIX (-) CAFs cases (n=25, each)...
January 2018: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/29274041/intraoral-pigmented-low-grade-adenocarcinoma-not-otherwise-specified-case-report-and-immunohistochemical-study
#4
Jessica Luana Dos Santos, Albina Messias de Almeida Milani Altemani, Alexandre Elias Trivellato, Cássio Edvard Sverzut, Luciana Yamamoto Almeida, Lucas Ribeiro Teixeira, Alfredo Ribeiro-Silva, Jorge Esquiche León
Salivary adenocarcinoma, not otherwise specified (AdCaNOS) is a rare malignant tumor with potential diagnostic challenge, which mainly affects the parotid glands; however, the minor salivary glands can also be involved by AdCaNOS. This paper reports a case of a 45-year-old Afro-descendant woman complaining of a slow-growing mass with 6 months of evolution in the left superior vestibular fornix. Microscopic examination revealed an infiltrative epithelial neoplasm composed of predominantly solid growth pattern, arranged in a lobular configuration, admixed with glandular or ductal structures...
December 22, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29215722/fgf-2-promotes-osteocyte-differentiation-through-increased-e11-podoplanin-expression
#5
Ekele Ikpegbu, Lena Basta, Dylan N Clements, Robert Fleming, Tonia L Vincent, David J Buttle, Andrew A Pitsillides, Katherine A Staines, Colin Farquharson
E11/podoplanin is critical in the early stages of osteoblast-to-osteocyte transitions (osteocytogenesis) however the upstream events which regulate E11 expression are unknown. The aim of this study was to examine the effects of FGF-2 on E11-mediated osteocytogenesis and to reveal the nature of the underlying signaling pathways regulating this process. Exposure of MC3T3 osteoblast-like cells and murine primary osteoblasts to FGF-2 (10ng/ml) increased E11 mRNA and protein expression (P < 0.05) after 4, 6 and 24 hours...
December 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29208793/assessment-of-proliferative-potential-of-odontogenic-keratocyst-and-dentigerous-cyst-using-podoplanin-an-immunohistochemical-study
#6
Sandeep Gupta, Aparna Paliwal, Nidhi Choudaha, Anish Gupta, Prashant Rao, Shekhar Grover
INTRODUCTION: Odontogenic cysts are commonly encountered lesions among head and neck pathologies. Odontogenic keratocyst (OKC) has unique features of recurrence and local aggressiveness. Podoplanin (PDP) is a lymphatic endothelial marker and is shown to be expressed in a variety of tissues. Hence, we planned to assess the significance of PDP in OKC and dentigerous cyst (DC). MATERIALS AND METHODS: The present study included assessment of immunoexpression of PDP in OKC and DC...
December 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29187378/platelet-glycoprotein-vi-aids-in-local-immunity-during-gram-negative-pneumonia-derived-sepsis
#7
Theodora A M Claushuis, Alex F de Vos, Bernhard Nieswandt, Louis Boon, Joris J T H Roelofs, Onno J de Boer, Cornelis J van 't Veer, Tom van der Poll
Platelet collagen receptor glycoprotein(GP)VI and podoplanin receptor C-type lectin-like receptor (CLEC-)2 are receptors implicated in platelet activation that both signal via an immunoreceptor-tyrosine-based activation motif. Platelets are necessary for host defense and prevention of hemorrhage during sepsis, but the role of platelet GPVI and CLEC2 herein is unknown. To investigate this we infected mice depleted of platelet GPVI or CLEC2 by antibody treatment or GPVI-/- mice with the common human sepsis pathogen Klebsiella pneumoniae via the airways to induce pneumonia derived sepsis...
November 29, 2017: Blood
https://www.readbyqxmd.com/read/29181171/subserous-invasion-of-vegf-c-producing-cancer-cells-is-a-possible-risk-factor-for-ileal-ulceration-in-the-non-metastatic-mucosal-layer-during-bevacizumab-combined-chemotherapy-for-recurrent-ovarian-cancer-a-case-report
#8
Takeo Matsumoto, Yasunari Mizumoto, Kyohei Nakade, Takeshi Obata, Ayumi Matsuoka, Subaru Myojo, Masanori Ono, Mitsuhiro Nakamura, Hiroshi Fujiwara
A 65-year-old woman received chemotherapy using taxane and carboplatin prior and following optimal debulking surgery for ovarian cancer stage IV. Five months later, intra-abdominal recurrence was diagnosed, and second-line chemotherapy using nogitecan and bevacizumab was administered. After five courses, the patient presented with a symptom of subileus and subsequent intestinal perforation occurred. An emergent surgery revealed two perforation sites and longitudinally extended ulcerative lesions in the ileum...
November 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29163783/abundant-expression-of-tim-3-lag-3-pd-1-and-pd-l1-as-immunotherapy-checkpoint-targets-in-effusions-of-mesothelioma-patients
#9
Elly Marcq, Jorrit De Waele, Jonas Van Audenaerde, Eva Lion, Eva Santermans, Niel Hens, Patrick Pauwels, Jan P van Meerbeeck, Evelien L J Smits
Malignant pleural mesothelioma (MPM) is an aggressive cancer with an increasing incidence, poor prognosis and limited effective treatment options. Hence, new treatment strategies are warranted which include immune checkpoint blockade approaches with encouraging preliminary data. Research on the immunological aspects of the easily accessible mesothelioma microenvironment could identify prognostic and/or predictive biomarkers and provide useful insights for developing effective immunotherapy. In this context, we investigated the immune cell composition of effusions (pleural and ascites fluids) from 11 different chemotherapy-treated MPM patients...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29162097/correlation-between-lymphatic-endothelial-markers-and-lymph-node-status-or-n-staging-of-colorectal-cancer
#10
Xing-Mao Zhang, Wen-Xiao Han, Hong-Ying Wang, Qiang He
BACKGROUND: The purpose of this study is to examine the expression levels of lymphatic endothelial markers in colorectal cancer and to explore the correlation between the expression levels of markers and lymph node status. METHODS: Forty-seven paired fresh tumor tissues and para-cancerous tissues were collected from colorectal cancer patients who received surgical treatment between August 2015 and March 2016 in Cancer Hospital, Chinese Academy of Medical Sciences...
November 21, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29161183/epitope-mapping-of-monoclonal-antibody-pmab-38-against-dog-podoplanin
#11
Yao-Wen Chang, Shinji Yamada, Mika K Kaneko, Yukinari Kato
Podoplanin (PDPN), a type I transmembrane sialoglycoprotein, is extensively expressed by normal lymphatic endothelial cells, renal podocytes, and pulmonary type I alveolar cells. Nevertheless, increased expression of PDPN in malignant tumors not only associates with poor prognosis but also facilitates hematogenous metastasis through interaction with C-type lectin-like receptor-2 presented on platelets, followed by PDPN-mediated platelet activation. We previously reported a novel PMab-38 antibody, an anti-dog PDPN (dPDPN) monoclonal antibody, which specifically recognizes PDPN in squamous cell carcinomas melanomas and cancer-associated fibroblasts in canine cancer tissues...
November 21, 2017: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy
https://www.readbyqxmd.com/read/29133178/lymphatic-vasculature-in-human-dural-superior-sagittal-sinus-implications-for-neurodegenerative-proteinopathies
#12
Naomi P Visanji, Anthony E Lang, David G Munoz
Recent reports have characterized functional lymphatic vessels, which drain both fluid and immune cells from the CSF to the deep cervical lymph nodes, lining the dural sinuses in mice. If conserved in the human brain these vessels could have profound implications for neuroinflammatory and neurodegenerative diseases. We provide evidence of the presence of lymphatic vessels in human dura obtained at autopsy, at the level of the superior sagittal sinus, in 4 individuals. Immunohistochemistry for the lymphatic vessel endothelial cell marker podoplanin revealed the widespread presence of multiple structures with a distinct lumen distributed throughout the superior sagittal sinus...
November 10, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/29123994/pattern-of-invasion-in-squamous-cell-carcinomas-of-the-lower-lip-and-oral-cavity
#13
Shahroo Etemad-Moghadam, Mojgan Alaeddini
Background: A number of factors may be responsible for the differences in the biologic behaviors of oral and lower lip squamous cell carcinomas (SCCs). Immunohistochemical invasion profiles have been used to detect invasion patterns like epithelial-mesenchymal-transition (EMT) and collective-cell-invasion (CCI), which have not been investigated in lower lip neoplasms. The aim of the present study was to compare the invasive phenotypes of SCCs of the lower lip and oral cavity. Method: A total of 44 OSCCs and 37 lower lip SCCs were immunostained with E-Cadherin, N-Cadherin, and podoplanin...
September 2017: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/29118051/chronic-inflammation-is-a-feature-of-achilles-tendinopathy-and-rupture
#14
Stephanie Georgina Dakin, Julia Newton, Fernando O Martinez, Robert Hedley, Stephen Gwilym, Natasha Jones, Hamish A B Reid, Simon Wood, Graham Wells, Louise Appleton, Kim Wheway, Bridget Watkins, Andrew Jonathan Carr
BACKGROUND: Recent investigation of human tissue and cells from positional tendons such as the rotator cuff has clarified the importance of inflammation in the development and progression of tendon disease. These mechanisms remain poorly understood in disease of energy-storing tendons such as the Achilles. Using tissue biopsies from patients, we investigated if inflammation is a feature of Achilles tendinopathy and rupture. METHODS: We studied Achilles tendon biopsies from symptomatic patients with either mid-portion tendinopathy or rupture for evidence of abnormal inflammatory signatures...
November 8, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29110840/immunohistochemical-and-genetic-characteristics-of-lung-cancer-mimicking-organizing-pneumonia
#15
Tomohiro Ichikawa, Koichi Saruwatari, Sachiyo Mimaki, Masato Sugano, Keiju Aokage, Motohiro Kojima, Tomoyuki Hishida, Satoshi Fujii, Junji Yoshida, Takeshi Kuwata, Atsushi Ochiai, Kenji Suzuki, Masahiro Tsuboi, Koichi Goto, Katsuya Tsuchihara, Genichiro Ishii
INTRODUCTION: Lung cancer mimicking organizing pneumonia (LCOP) is a novel radiological entity of lung adenocarcinoma that could be misdiagnosed as inflammatory lesions. However, the characteristic biological and genetic features of LCOP are not fully clarified. MATERIALS AND METHODS: We used thin-section CT images to select cases of (LCOP) among surgically resected lung adenocarcinoma patients. We compared the clinicopathological characteristics and the immunophenotypes of LCOP (n=44) and other lepidic-predominant adenocarcinomas (non-LCOP, n=56)...
November 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/29109283/sirp%C3%AE-dendritic-cells-regulate-homeostasis-of-fibroblastic-reticular-cells-via-tnf-receptor-ligands-in-the-adult-spleen
#16
Yasuyuki Saito, Datu Respatika, Satomi Komori, Ken Washio, Taichi Nishimura, Takenori Kotani, Yoji Murata, Hideki Okazawa, Hiroshi Ohnishi, Yoriaki Kaneko, Katsuyuki Yui, Koji Yasutomo, Chikako Nishigori, Yoshihisa Nojima, Takashi Matozaki
In secondary lymphoid organs, development and homeostasis of stromal cells such as podoplanin (Pdpn)-positive fibroblastic reticular cells (FRCs) are regulated by hematopoietic cells, but the cellular and molecular mechanisms of such regulation have remained unclear. Here we show that ablation of either signal regulatory protein α (SIRPα), an Ig superfamily protein, or its ligand CD47 in conventional dendritic cells (cDCs) markedly reduced the number of CD4(+) cDCs as well as that of Pdpn(+) FRCs and T cells in the adult mouse spleen...
November 6, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29100400/circulating-epithelial-cell-counts-for-monitoring-the-therapeutic-outcome-of-patients-with-papillary-thyroid-carcinoma
#17
Ching-Ping Tseng, Kong-Kit Leong, Miaw-Jene Liou, Hsueh-Ling Hsu, Hung-Chih Lin, Yi-An Chen, Jen-Der Lin
Loco-regional recurrence or distant metastasis usually leads to the death of patients with papillary thyroid carcinoma (PTC). Whether or not circulating epithelial cells (CECs) count is a valuable marker in monitoring the therapeutic outcome of PTC was investigated. Patients with PTC (n=129) were treated in our medical center and were categorized into 4 groups with excellent (n=45), biochemical incomplete (n=15), indeterminate (n=37), and structural incomplete (n=32) responses. CECs were enriched from the peripheral blood by the PowerMag negative selection system...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29090969/expression-of-cat-podoplanin-in-feline-squamous-cell-carcinomas
#18
Shunsuke Itai, Shinji Yamada, Mika K Kaneko, Hiroyuki Harada, Yumiko Kagawa, Satoru Konnai, Yukinari Kato
Oral squamous cell carcinoma is an aggressive tumor in cats; however, molecular-targeted therapies against this tumor, including antibody therapy, have not been developed. Sensitive and specific monoclonal antibodies (mAbs) against highly expressed membrane proteins are needed to develop antibody therapies. Podoplanin, a type I transmembrane glycoprotein, is expressed in many human malignant tumors, including brain tumor, esophageal cancer, lung cancer, mesothelioma, and oral cancer. Podoplanin binds to C-type lectin-like receptor-2 (CLEC-2) and activates platelet aggregation, which is involved in cancer metastasis...
November 1, 2017: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy
https://www.readbyqxmd.com/read/29090616/mouse-podoplanin-supports-adhesion-and-aggregation-of-platelets-under-arterial-shear-a-novel-mechanism-of-haemostasis
#19
Stephanie E Lombard, Alice Y Pollitt, Craig E Hughes, Ying Di, Tom Mckinnon, Chris A O'callaghan, Steve P Watson
The podoplanin-CLEC-2 axis is critical in mice for prevention of hemorrhage in the cerebral vasculature during mid-gestation. This raises the question as to how platelets are captured by podoplanin on neuroepithelial cells in a high shear environment. In this study, we demonstrate that mouse platelets form stable aggregates on mouse podoplanin at arterial shear through a CLEC-2 and Src kinase-dependent pathway. Adhesion and aggregation are also dependent on the platelet glycoprotein (GP) receptors, integrin αIIbβ3 and GPIb, and the feedback agonists ADP and thromboxane A2 (TxA2)...
November 1, 2017: Platelets
https://www.readbyqxmd.com/read/29077522/a-novel-uveolymphatic-drainage-pathway-possible-new-target-for-glaucoma-treatment
#20
Martyna Tomczyk-Socha, Anna Turno-Kręcicka
Glaucoma is a heterogeneous group of ophthalmic diseases leading to irreversible damage to the optic nerve. While the overall mechanism responsible for glaucoma remains obscure, the most important risk factor is elevated intraocular pressure. The current therapies, whether pharmacological or surgical, are primarily symptomatic with the aim to lower the intraocular pressure (IOP). Poorer response to treatment is associated, for example, with pseudoexfoliation glaucoma, which is determined by blocking the trabecular meshwork (TM) both by pigment grains and the pseudoexfoliation material...
December 2017: Lymphatic Research and Biology
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