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Splenic lymph nodes

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https://www.readbyqxmd.com/read/27926941/type-1-interferons-and-nk-cells-limit-murine-cytomegalovirus-escape-from-the-lymph-node-subcapsular-sinus
#1
Helen E Farrell, Kimberley Bruce, Clara Lawler, Rhonda D Cardin, Nicholas J Davis-Poynter, Philip G Stevenson
Cytomegaloviruses (CMVs) establish chronic, systemic infections. Peripheral infection spreads via lymph nodes, which are also a focus of host defence. Thus, this is a point at which systemic infection spread might be restricted. Subcapsular sinus macrophages (SSM) captured murine CMV (MCMV) from the afferent lymph and poorly supported its replication. Blocking the type I interferon (IFN-I) receptor (IFNAR) increased MCMV infection of SSM and of the fibroblastic reticular cells (FRC) lining the subcapsular sinus, and accelerated viral spread to the spleen...
December 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27899951/the-first-case-of-benign-multicystic-mesothelioma-presenting-as-a-splenic-mass
#2
Antonio D'Antonio, Carlo Baldi, Maria Addesso, Carmine Napolitano
Multicystic mesothelioma (MM) is a relatively rare tumour arising in the pelvic peritoneum of the tuboovarian region of young woman. Exceptionally, MM occurs on the serosal surfaces of various organs including kidney, bladder, lymph nodes, and liver. We report here the first case of MM wherein a 58-year-old woman with a previous history of endometriosis of the right ovary presented with a large multicystic mass of the spleen. The diagnosis of MM was made on a surgical specimen after splenectomy. A histopathologic examination is always necessary for the diagnosis of MM which should be differentiated from other lesions particularly from cystic lymphangioma...
2016: Ecancermedicalscience
https://www.readbyqxmd.com/read/27897208/beta-1-integrin-ligation-and-tlr-ligation-enhance-gm-csf-induced-aldh1a2-expression-in-dendritic-cells-but-differentially-regulate-their-anti-inflammatory-properties
#3
Aya Yokota-Nakatsuma, Yoshiharu Ohoka, Hajime Takeuchi, Si-Young Song, Makoto Iwata
Retinoic acid (RA)-producing CD103(+) mature dendritic cells (DCs) in mesenteric lymph nodes (MLNs) play crucial roles in gut immunity. GM-CSF and RA contribute to the expression of the RA-producing enzyme ALDH1A2. However, additional signals appeared to be required for inducing ALDH1A2(high) mature DCs from immature DCs. We found here that TLR ligands (Ls) and immobilized E-cadherin could provide such signals in FLT3-L-generated bone marrow (BM)-derived DCs after treatment with GM-CSF and the RA receptor agonist Am80...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27896022/pdia3-gene-induces-visceral-hypersensitivity-in-rats-with-irritable-bowel-syndrome-through-the-dendritic-cell-mediated-activation-of-t-cells
#4
Zhaomeng Zhuang, Lu Zhang, Xiaoteng Wang, Liyuan Tao, Bin Lv
This study investigated the mechanism of protein disulfide-isomerase A3 (PDIA3)-induced visceral hypersensitivity in irritable bowel syndrome (IBS). Rats were treated with saline (control), acetic acid and restraint stress (IBS model), empty vector (RNAi control) and PDIA3-RNAi vector (PDIA3-RNAi). Mesenteric lymph node DCs (MLNDCs) and splenic CD4+/CD8+ T cells were isolated for co-cultivation. Compared with control, MLNDCs co-cultured with CD4+ or CD8+ T cells showed an increased ability to promote T cell proliferation and produced more IL-4 or IL-9 secretion...
2016: PeerJ
https://www.readbyqxmd.com/read/27842609/a-recombinant-multi-antigen-vaccine-formulation-containing-babesia-bovis-merozoite-surface-antigens-msa-2a1-msa-2b-and-msa-2c-elicits-invasion-inhibitory-antibodies-and-ifn-%C3%AE-producing-cells
#5
Alba Marina Gimenez, Katia S Françoso, Jonatan Ersching, Marcelo Y Icimoto, Vitor Oliveira, Anabel E Rodriguez, Leonhard Schnittger, Monica Florin-Christensen, Mauricio M Rodrigues, Irene S Soares
BACKGROUND: Babesia bovis is a tick-transmitted protozoan hemoparasite and the causative agent of bovine babesiosis, a potential risk to more than 500 million cattle worldwide. The vaccines currently available are based on attenuated parasites, which are difficult to produce, and are only recommended for use in bovines under one year of age. When used in older animals, these vaccines may cause life-threatening clinical symptoms and eventually death. The development of a multi-subunit recombinant vaccine against B...
November 14, 2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27836795/ultrasound%C3%A2-for%C3%A2-patients%C3%A2-in-a-high-hiv-tb-prevalence-setting-a%C3%A2-needs-assessment-and-review-of-focused-applications-for-sub-saharan-africa
#6
REVIEW
Tom Heller, Eric A Mtemang'ombe, Michaëla A M Huson, Charlotte C Heuvelings, Sabine Bélard, Saskia Janssen, Sam Phiri, Martin P Grobusch
Ultrasound is increasingly used in point-of-care applications and has great potential to support the diagnosis of infectious diseases, especially in resource-limited settings. We performed a cross-sectional study including 100 Malawian patients with a clinical indication for ultrasound and reviewed the literature on point-of-care ultrasound (POCUS) in Sub-Saharan Africa to establish its applicability, most frequent indications, findings, and implications for treatment, and therefore relevance in POCUS curricula, with a main focus on infectious diseases...
November 8, 2016: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/27824644/rapid-fatal-acute-peripheral-t-cell-lymphoma-associated-with-igg-plasma-cell-leukemia-and-iga-hypergammaglobulinemia
#7
Nives Jonjić, Irena Seili Bekafigo, Dora Fučkar Čupić, Ksenija Lučin, Antica Duletić Načinović, Toni Valković
Simultaneous occurrence of T-cell and B-cell neoplasms is rare, and etiologic relationships between these 2 malignancies are poorly understood. We describe the case of a 66-year-old woman who was admitted to the hospital because of fever, hemoptysis, lymphadenopathy, and skin rash. Enlarged lymph nodes in axillary, pectoral, paratracheal, and periportal regions as well as slight hepatomegaly and splenomegaly were confirmed. A peripheral blood smear revealed rouleaux formation and numerous circulating plasma cells, with plasmacytoid lymphocytes...
November 2016: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/27815426/gata1-deficient-dendritic-cells-display-impaired-ccl21-dependent-migration-toward-lymph-nodes-due-to-reduced-levels-of-polysialic-acid
#8
Maaike R Scheenstra, Iris M De Cuyper, Filipe Branco-Madeira, Pieter de Bleser, Mirjam Kool, Marjolein Meinders, Mark Hoogenboezem, Erik Mul, Monika C Wolkers, Fiamma Salerno, Benjamin Nota, Yvan Saeys, Sjoerd Klarenbeek, Wilfred F J van IJcken, Hamida Hammad, Sjaak Philipsen, Timo K van den Berg, Taco W Kuijpers, Bart N Lambrecht, Laura Gutiérrez
Dendritic cells (DCs) play a pivotal role in the regulation of the immune response. DC development and activation is finely orchestrated through transcriptional programs. GATA1 transcription factor is required for murine DC development, and data suggest that it might be involved in the fine-tuning of the life span and function of activated DCs. We generated DC-specific Gata1 knockout mice (Gata1-KO(DC)), which presented a 20% reduction of splenic DCs, partially explained by enhanced apoptosis. RNA sequencing analysis revealed a number of deregulated genes involved in cell survival, migration, and function...
November 4, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27771992/castleman-s-disease-of-the-spleen
#9
D Mantas, C Damaskos, P Dailiani, M Samarkos, P Korkolopoulou
INTRODUCTION: Castleman's disease (CD), also known as giant or angiofolicular lymphoid hyperplasia or lymphoid hamartoma, is a group of atypical lymphoproliferative disorders that share common lymph node histological features and may be localized either to a single lymph node (unicentric) or occur systemically (multicentric). PATIENT AND METHOD: Herein, we present a rare case of a of 75-year-old female patient who was referred to our department and after a thorough work-up, underwent splenectomy with synchronous resection of an accessory spleen, splenic artery lymph nodes, and splenic hilar lymph nodes due to splenic involvement in a multicentric CD...
October 24, 2016: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/27757950/sarcoid-reaction-in-the-spleen-after-sigmoid-colon-cancer-resection-a-case-report
#10
Takafumi Shima, Yoshinori Tanaka, Kunihiro Katsuragi, Nagahisa Fujio, Shuichi Nakatani, Yasutsugu Kobayashi, Tadayuki Hida
BACKGROUND: A sarcoid reaction is a phenomenon characterized by histologically proven granulomatous lesions without evidence of sarcoidosis. This pathology is a benign tumor itself, but several reports have described sarcoid reactions accompanying malignant tumors. Sarcoid reactions occur in various cancers, such as skin, lung, ovary, stomach, and breast cancers. However, only a few published reports have described sarcoid reactions in patients with colorectal cancer. CASE PRESENTATION: A 76-year-old woman underwent laparoscopic sigmoidectomy for sigmoid colon cancer...
December 2016: Surgical Case Reports
https://www.readbyqxmd.com/read/27742829/endothelial-plasmalemma-vesicle-associated-protein-regulates-the-homeostasis-of-splenic-immature-b-cells-and-b-1-b-cells
#11
Raul Elgueta, Dan Tse, Sophie J Deharvengt, Marcus R Luciano, Catherine Carriere, Randolph J Noelle, Radu V Stan
Plasmalemma vesicle-associated protein (Plvap) is an endothelial protein with roles in endothelial diaphragm formation and maintenance of basal vascular permeability. At the same time, Plvap has roles in immunity by facilitating leukocyte diapedesis at inflammatory sites and controlling peripheral lymph node morphogenesis and the entry of soluble Ags into lymph node conduits. Based on its postulated role in diapedesis, we have investigated the role of Plvap in hematopoiesis and show that deletion of Plvap results in a dramatic decrease of IgM(+)IgD(lo) B cells in both the spleen and the peritoneal cavity...
November 15, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27716191/comparison-of-different-methods-of-splenic-hilar-lymph-node-dissection-for-advanced-upper-and-or-middle-third-gastric-cancer
#12
Xin Ji, Tao Fu, Zhao-De Bu, Ji Zhang, Xiao-Jiang Wu, Xiang-Long Zong, Zi-Yu Jia, Biao Fan, Yi-Nan Zhang, Jia-Fu Ji
BACKGROUND: Surgery for advanced gastric cancer (AGC) often includes dissection of splenic hilar lymph nodes (SHLNs). This study compared the safety and effectiveness of different approaches to SHLN dissection for upper- and/or middle-third AGC. METHODS: We retrospectively compared and analyzed clinicopathologic and follow-up data from a prospectively collected database at the Peking University Cancer Hospital. Patients were divided into three groups: in situ spleen-preserved, ex situ spleen-preserved and splenectomy...
October 3, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27695977/evaluation-of-lymph-flow-patterns-in-splenic-flexural-colon-cancers-using-laparoscopic-real-time-indocyanine-green-fluorescence-imaging
#13
Jun Watanabe, Mitsuyoshi Ota, Yusuke Suwa, Atsushi Ishibe, Hidenobu Masui, Kaoru Nagahori
PURPOSE: The treatment of splenic flexural colon cancer is not standardized because the lymphatic drainage is variable. The aim of this study is to evaluate the lymph flow at the splenic flexure. METHODS: From July 2013 to January 2016, consecutive patients of the splenic flexural colon cancer with a preoperative diagnosis of N0 who underwent laparoscopic surgery were enrolled. Primary outcome is frequency of the direction of lymph flow from splenic flexure. We injected indocyanine green (2...
October 1, 2016: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/27694496/antibody-binding-to-cd4-induces-rac-gtpase-activation-and-alters-t-cell-migration
#14
Y Maurice Morillon, Elizabeth Chase Lessey-Morillon, Matthew Clark, Rui Zhang, Bo Wang, Keith Burridge, Roland Tisch
The use of nondepleting Abs specific for CD4 and CD8 is an effective strategy to tolerize CD4(+) and CD8(+) T cells in a tissue-specific manner. We reported that coreceptor therapy reverses diabetes in new onset NOD mice. A striking feature of coreceptor-induced remission is the purging of T cells from the pancreatic lymph nodes (PLN) and islets of NOD mice. Evidence indicates that Abs binding to the coreceptors promotes T cell egress from these tissues. The present study examined how coreceptor therapy affects the migration of CD4(+) T cells residing in the PLN of NOD mice...
November 1, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27686567/anaplastic-lymphoma-kinase-positive-large-b-cell-lymphoma-literature-review-and-report-of-an-endoscopic-fine-needle-aspiration-case-with-tigroid-backgrounds-mimicking-seminoma
#15
Hany Sakr, Michael Cruise, Prabhleen Chahal, Claudiu Cotta, James Cook, Sricharan Chalikonda, Steven Rosenblatt, Fatima Hamadeh, Omar Al-Nourhji, Charles D Sturgis
Anaplastic lymphoma kinase-positive large B-cell lymphoma (ALK+ LBCL) is a rare distinct type of non-Hodgkin's lymphoma that arises in association with alterations of the ALK gene. This distinct disease entity is typically associated with an aggressive clinical course and appears in light microscopic preparations as a monomorphic population of large, immunoblast-like cells. In this report, we describe a case of ALK+ LBCL diagnosed by transgastric endoscopic ultrasound-guided fine needle aspiration (EUS FNA) of splenic hilar lymph nodes...
September 30, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27659423/a-novel-transgenic-mouse-model-of-lysosomal-storage-disorder
#16
Sonia Ortiz-Miranda, Rui Ji, Agata Jurczyk, Ken-Edwin Aryee, Shunyan Mo, Terry Fletcher, Scott A Shaffer, Dale L Greiner, Rita Bortell, Ronald G Gregg, Alan Cheng, Leah J Hennings, Ann R Rittenhouse
Knockout technology has proven useful for delineating functional roles of specific genes. Here we describe and provide an explanation for striking pathology that occurs in a subset of genetically engineered mice expressing a rat CaVβ2a transgene under control of the cardiac α-myosin heavy chain promoter. Lesions were limited to mice homozygous for transgene and independent of native Cacnb2 genomic copy number. Gross findings included an atrophied pancreas; decreased adipose tissue; thickened, orange intestines; and enlarged liver, spleen, and abdominal lymph nodes...
November 1, 2016: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/27646614/prognostic-impact-of-splenic-artery-invasion-for-pancreatic-cancer-of-the-body-and-tail
#17
Yasuyuki Fukami, Yuji Kaneoka, Atsuyuki Maeda, Yuichi Takayama, Shunsuke Onoe
BACKGROUND: The prognostic impact of splenic artery (SA) invasion after resection for pancreatic cancer of the body and tail has not been investigated. The aim of this study was to assess the clinical value of SA invasion for pancreatic cancer of the body and tail. METHODS: Between 1993 and 2015, 64 patients who underwent distal pancreatectomy (DP) for histologically confirmed pancreatic ductal adenocarcinoma of the body and tail were included in this study. Clinicopathological prognostic factors for survival were analyzed using a prospectively collected database...
September 17, 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/27638289/effects-of-initial-disease-status-on-lymph-flow-following-gastrectomy-in-cases-of-carcinoma-in-the-remnant-stomach
#18
Shinsaku Honda, Etsuro Bando, Rie Makuuchi, Masanori Tokunaga, Yutaka Tanizawa, Taiichi Kawamura, Teiichi Sugiura, Yusuke Kinugasa, Katsuhiko Uesaka, Masanori Terashima
PURPOSE: In cases of carcinoma in the remnant stomach (CRS), the lymphatic flow may be altered by the initial surgery. In this study of CRS after gastrectomy, we investigated how the regions of lymph node metastasis and changes in lymphatic flow depend on initial disease status. METHOD: The study included 76 patients with CRS who underwent gastrectomy between September 2002 and November 2014. We analyzed and compared the clinicopathological factors and survival periods between patients after distal gastrectomy for malignant disease (group M, 33 patients) and patients after distal gastrectomy for benign disease (group B, 43 patients)...
September 16, 2016: Gastric Cancer
https://www.readbyqxmd.com/read/27602139/follicular-dendritic-cell-sarcoma-of-the-spleen-a-case-report-and-review-of-the-literature
#19
Lifeng Wang, Dongfeng Xu, Zhenguo Qiao, Li Shen, Hongzhi Dai, Yiding Ji
Follicular dendritic cell sarcoma (FDCS), which originates in antigen-presenting cells of the B-cell follicles of the lymph nodes, is an uncommon disease, particularly in a splenic location. In a number of cases, FDCS may easily be confused with other solid tumors and be underdiagnosed. The present study reports a case in which such as tumor occurred in a 64-year-old woman. The patient presented with an abdominal mass, and computed tomography was performed. Histological and immunohistochemical studies revealed a diagnosis of FDCS...
September 2016: Oncology Letters
https://www.readbyqxmd.com/read/27586894/correlation-of-pre-operative-ct-findings-with-surgical-histological-tumor-dissemination-patterns-at-cytoreduction-for-primary-advanced-and-relapsed-epithelial-ovarian-cancer-a-retrospective-evaluation
#20
S Nasser, A Lazaridis, M Evangelou, B Jones, K Nixon, M Kyrgiou, H Gabra, A Rockall, C Fotopoulou
OBJECTIVES: Computed tomography (CT) is an essential part of preoperative planning prior to cytoreductive surgery for primary and relapsed epithelial ovarian cancer (EOC). Our aim is to correlate pre-operative CT results with intraoperative surgical and histopathological findings at debulking surgery. METHODS: We performed a systematic comparison of intraoperative tumor dissemination patterns and surgical resections with preoperative CT assessments of infiltrative disease at key resection sites, in women who underwent multivisceral debulking surgery due to EOC between January 2013 and December 2014 at a tertiary referral center...
August 29, 2016: Gynecologic Oncology
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