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Lymph node transfer

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https://www.readbyqxmd.com/read/28617989/1-25-dihydroxyvitamin-d3-induced-dendritic-cells-suppress-experimental-autoimmune-encephalomyelitis-by-increasing-proportions-of-the-regulatory-lymphocytes-and-reducing-th1-th17-cells
#1
Zhongxiang Xie, Jingtao Chen, Chao Zheng, Jing Wu, Yun Cheng, Shan Zhu, Chenhong Lin, Qingqing Cao, Jie Zhu, Tao Jin
Dendritic cells (DCs), a bridge of innate and adaptive immune responses, play a key role in the development of multiple sclerosis (MS) and experimental autoimmune encephalomyelitis (EAE), an animal model for MS. Administration of tolerogenic DCs has been used as an immunotherapy in the autoimmune diseases. Deficiency of vitamin D is an environmental risk factor of MS. In this study, we induced tolerogenic DCs by 1,25-dihydroxyvitamin D3 (1,25(OH)2 D3 ) and adoptive transferred the tolerogenic DCs (VD3-DCs) into EAE mice...
June 15, 2017: Immunology
https://www.readbyqxmd.com/read/28616231/lymph-node-transfer-for-refractory-infectious-sites-caused-by-trauma
#2
Makoto Mihara, Hisako Hara, Kazuki Kikuchi
OBJECTIVE: In this report, we placed focus on the immunological function of lymph nodes and performed lymph node transfer via a free flap to a site of refractory infection. CASE AND RESULTS: Case 1 describes a 34-year-old male suffering from compound fractures with severe crush injuries and burns in the right ankle joint. A 20 × 15 cm skin defect was observed around the right malleolus medialis, along with denuded tendons with bacterial infection. After conservative treatment, we transferred a lymph-node-containing free superficial circumflex iliac artery perforator flap to the region, with minimum debridement...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28602621/binary-test-battery-with-keratinosens%C3%A2-and-h-clat-as-part-of-a-bottom-up-approach-for-skin-sensitization-hazard-prediction
#3
Yuki Otsubo, Taku Nishijo, Masaaki Miyazawa, Kazutoshi Saito, Hideyuki Mizumachi, Hitoshi Sakaguchi
Skin sensitization is one of the key safety endpoints for chemicals applied directly to the skin. Several integrated testing strategies (ITS) using multiple non-animal test methods have been developed to accurately evaluate the sensitizing potential of chemicals, but there is no regulatory-accepted ITS to classify a chemical as a non-sensitizer. In this study, the predictive performance of a binary test battery with KeratinoSens™ and h-CLAT compared to the local lymph node assay (LLNA) and human data was examined using comprehensive dataset of 203 chemicals...
June 7, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28598427/different-populations-of-cd11b-dendritic-cells-drive-th2-responses-in-the-small-intestine-and-colon
#4
Johannes U Mayer, Mimoza Demiri, William W Agace, Andrew S MacDonald, Marcus Svensson-Frej, Simon W Milling
T-helper 2 (Th2) cell responses defend against parasites. Although dendritic cells (DCs) are vital for the induction of T-cell responses, the DC subpopulations that induce Th2 cells in the intestine are unidentified. Here we show that intestinal Th2 responses against Trichuris muris worms and Schistosoma mansoni eggs do not develop in mice with IRF-4-deficient DCs (IRF-4(f/f) CD11c-cre). Adoptive transfer of conventional DCs, in particular CD11b-expressing DCs from the intestine, is sufficient to prime S. mansoni-specific Th2 responses...
June 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28594742/outcomes-of-lymphedema-microsurgery-for-breast-cancer-related-lymphedema-with-or-without-microvascular-breast-reconstruction
#5
Holger Engel, Chia-Yu Lin, Jung-Ju Huang, Ming-Huei Cheng
OBJECTIVE: This study investigated the outcome of lymphedema microsurgery with or without microsurgical breast reconstruction for breast cancer-related lymphedema (BCRL). BACKGROUND: Complete decongestive therapy, lymphovenous anastomosis, and vascularized lymph node flap transfer are the 3 major treatment modalities for BCRL. Releasing axillary contracture and transferring a free flap may potentially improve the BCRL. METHODS: Between 2004 and 2015, 124 patients with BCRL who underwent 3 treatment modalities without or with microsurgical breast reconstruction were included in this study as groups I and II, respectively...
June 7, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28582783/contribution-of-simultaneous-breast-reconstruction-by-deep-inferior-epigastric-artery-perforator-flap-to-the-efficacy-of-vascularized-lymph-node-transfer-in-patients-with-breast-cancer-related-lymphedema
#6
Shinsuke Akita, Hideki Tokumoto, Yoshihisa Yamaji, Yoshitaro Sasahara, Yoshitaka Kubota, Maiko Kubo, Motone Kuriyama, Nobuyuki Mitsukawa
No abstract text is available yet for this article.
June 5, 2017: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/28582379/laparoscopic-gastroepiploic-lymphovascular-pedicle-harvesting-for-the-treatment-of-extremity-lymphedema-a-novel-technique
#7
Michael E Johnston, Juan Socas, JoAnna L Hunter, Eugene P Ceppa
Vascularized lymph node transfers have multiple donor sites with risk of iatrogenic lymphedema. We sought to describe in detail a surgical technique that is safe, reproducible, and efficient in harvesting gastroepiploic vascularized lymph nodes using real-time indocyanine green (ICG) fluorescent imaging. Photographs and video were acquired from a case to depict a step-by-step approach. ICG was endoscopically injected into the submucosa of the greater curvature of the stomach at the outset of the procedure. A laparoscopic harvest of the gastroepiploic vascular pedicle and lymph nodes ensued with the assistance of fluorescent imaging...
June 2017: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/28570444/mastering-lymphatic-microsurgery-a-new-training-model-in-living-tissue
#8
Corrado Cesare Campisi, Lucian P Jiga, Melissa Ryan, Pietro G di Summa, Corradino Campisi, Mihai Ionac
BACKGROUND: Advanced microsurgical techniques have emerged as a promising approach for the treatment of lymphedema, but achieving international standards is limited by a scarcity of adequate training models. The purpose of this report is to describe our in vivo porcine training model for microsurgery. STUDY DESIGN: Five female common-breed pigs (Sus scrofa domesticus) weighing 20 to 28 kg were placed under general anesthesia, and blue patent violet dye was injected to highlight lymphatic structures and prepare the pigs for anatomical exploration and microsurgery...
May 31, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28564714/endoscopic-submucosal-dissection-for-early-gastric-cancer-are-expanded-resection-criteria-safe-for-western-patients
#9
Andreas Probst, Annette Schneider, Tina Schaller, Matthias Anthuber, Alanna Ebigbo, Helmut Messmann
Background and study aims Endoscopic submucosal dissection (ESD) is the standard treatment for early gastric cancer (EGC) fulfilling guideline resection criteria or the expanded resection criteria in Asia. It is unclear whether the expanded criteria can be transferred to European patients, and long-term follow-up data are lacking. The aim of this study was to evaluate long-term follow-up data after ESD of EGCs in Europe. Patients and methods Patients with EGC who underwent ESD were included in this single-center study at a German referral center...
May 31, 2017: Endoscopy
https://www.readbyqxmd.com/read/28543381/ileocecal-vascularized-lymph-node-transfer-for-the-treatment-of-extremity-lymphedema-a-case-report
#10
Pedro Ciudad, Oscar J Manrique, Mouchammed Agko, En-Wei Liu, Wei-Ling Chang, Matthew Sze-Wei Yeo, Tony Chieh-Ting Huang, Ram M Chilgar, Hung-Chi Chen
Vascularized lymph node (VLN) transfer has been of high interest in the past decade for the treatment of lymphedema, since it has been shown to be effective in reducing limb volumes, decreasing infectious episodes and improving quality of life. Multiple donor sites have been described in the quest for the optimal one. Herein, we describe a novel lymph node flap option based on the ileocolic artery and vein. The ileocecal vascularized lymph node (IC-VLN) flap was used in the management of a 33-year-old male patient with lower extremity lymphedema secondary to left inguinal trauma...
May 24, 2017: Microsurgery
https://www.readbyqxmd.com/read/28543027/the-vascularized-groin-lymph-node-flap-vgln-anatomical-study-and-flap-planning-using-multi-detector-ct-scanner-the-golden-triangle-for-flap-harvesting
#11
Assaf A Zeltzer, Alexander Anzarut, Delphine Braeckmans, Katrin Seidenstuecker, Benoit Hendrickx, Eddy Van Hedent, Moustapha Hamdi
INTRODUCTION: A growing number of surgeons perform lymph node transfers for the treatment of lymphedema. When harvesting a vascularized lymph node groin flap (VGLNF) one of the major concerns is the potential risk of iatrogenic lymphedema of the donor-site. This article helps understanding of the lymph node distribution of the groin in order to minimize this risk. MATERIALS AND METHODS: Fifty consecutive patients undergoing abdominal mapping by multi-detector CT scanner were included and 100 groins analyzed...
May 25, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28533445/lung-cd4-tissue-resident-memory-t-cells-mediate-adaptive-immunity-induced-by-previous-infection-of-mice-with-bordetella-pertussis
#12
Mieszko M Wilk, Alicja Misiak, Róisín M McManus, Aideen C Allen, Marina A Lynch, Kingston H G Mills
Th1 and Th17 cells have an established role in protective immunity to Bordetella pertussis, but this evidence is based largely on peripheral T cells. There is emerging evidence that local tissue-resident memory T (TRM) cells that accumulate in tissue following mucosal infection may be crucial for long-term immunity. In this study, we examined the role of respiratory CD4 TRM cells in immunity to B. pertussis Natural immunity to B. pertussis induced by infection is considered long lasting and effective at preventing reinfection...
May 22, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28507857/greater-omental-lymph-node-flap-for-upper-limb-lymphedema-with-lymph-nodes-depleted-patient
#13
Yu-Ying Chu, Robert J Allen, Ting-Jung Wu, Ming-Huei Cheng
BACKGROUND: The greater omentum is supplied by the right, middle, and left omental arteries, which arise from the right and left gastroepiploic arteries. All or part of the greater omentum can be harvested based on this blood supply for free tissue transfer. It has stimulated new interest in its use as the donor site in the treatment of lymphedema. For patients who have failed other management options or have limited peripheral lymph node donor sites, the greater omental lymph node flap may offer the best chance for lymphedema treatment...
April 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28507710/semiconducting-polymer-dots-with-bright-narrow-band-emission-at-800-nm-for-biological-applications
#14
Dandan Chen, I-Che Wu, Zhihe Liu, Ying Tang, Haobin Chen, Jiangbo Yu, Changfeng Wu, Daniel T Chiu
The development of near-infrared (NIR) fluorescent probes is critical for in vivo exploration of the fundamental and complex processes in living systems by noninvasive fluorescence imaging techniques. Semiconducting polymer dots (Pdots) are emerging as important probes that exhibit several advantages, such as high brightness and biocompatibility. However, NIR-emitting Pdots are very rare, particularly at the center (∼800 nm) of the first optical window of biological tissues (between 650 nm and 950 nm). In this paper, we describe the synthesis of a semiconducting polymer with bright and narrow-band emission at 800 nm...
May 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28502093/the-tlr4-trif-pathway-can-protect-against-the-development-of-experimental-allergic-asthma
#15
Karim H Shalaby, Saba Al-Heialy, Kimitake Tsuchiya, Soroor Farahnak, Toby K McGovern, Paul-Andre Risse, Woong-Kyung Suh, Salman T Qureshi, James G Martin
The Toll-like Receptor (TLR) adaptor proteins Myeloid Differentiating Factor 88 (MyD88) and Toll, interleukin-1 Receptor and Resistance protein (TIR) domain-containing adaptor inducing interferon-β (TRIF) comprise the two principal limbs of the TLR signaling network. We studied the role of these adaptors in the TLR4-dependent inhibition of allergic airway disease and induction of CD4+ICOS+ T cells by nasal application of Protollin(™) , a mucosal adjuvant composed of TLR2 and 4 agonists. Wild-type (wt), Trif -/- or Myd88 -/- mice were sensitized to birch pollen extract (BPEx), then received intranasal Protollin followed by consecutive BPEx challenges...
May 14, 2017: Immunology
https://www.readbyqxmd.com/read/28490801/dendritic-cells-provide-a-therapeutic-target-for-synthetic-small-molecule-analogues-of-the-parasitic-worm-product-es-62
#16
Felicity E Lumb, James Doonan, Kara S Bell, Miguel A Pineda, Marlene Corbet, Colin J Suckling, Margaret M Harnett, William Harnett
ES-62, a glycoprotein secreted by the parasitic filarial nematode Acanthocheilonema viteae, subverts host immune responses towards anti-inflammatory phenotypes by virtue of covalently attached phosphorylcholine (PC). The PC dictates that ES-62 exhibits protection in murine models of inflammatory disease and hence a library of drug-like PC-based small molecule analogues (SMAs) was synthesised. Four sulfone-containing SMAs termed 11a, 11e, 11i and 12b were found to reduce mouse bone marrow-derived dendritic cell (DC) pathogen-associated molecular pattern (PAMP)-induced pro-inflammatory cytokine production, inhibit NF-κB p65 activation, and suppress LPS-induced up-regulation of CD40 and CD86...
May 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28489886/bystander-activation-of-irrelevant-cd4-t-cells-following-antigen-specific-vaccination-occurs-in-the-presence-and-absence-of-adjuvant
#17
Susan van Aalst, Irene S Ludwig, Ruurd van der Zee, Willem van Eden, Femke Broere
Autoimmune and other chronic inflammatory diseases (AID) are prevalent diseases which can severely impact the quality of life of those that suffer from the disease. In most cases, the etiology of these conditions have remained unclear. Immune responses that take place e.g. during natural infection or after vaccination are often linked with the development or exacerbation of AID. It is highly debated if vaccines induce or aggravate AID and in particular adjuvants are mentioned as potential cause. Since vaccines are given on a large scale to healthy individuals but also to elderly and immunocompromised individuals, more research is warranted...
2017: PloS One
https://www.readbyqxmd.com/read/28489593/a-preoperative-scoring-system-to-predict-the-risk-of-no-10-lymph-node-metastasis-for-advanced-upper-gastric-cancer-a-large-case-report-based-on-a-single-center-study
#18
Zhi-Liang Hong, Qi-Yue Chen, Chao-Hui Zheng, Ping Li, Jian-Wei Xie, Jia-Bin Wang, Jian-Xian Lin, Jun Lu, Long-Long Cao, Mi Lin, Ru-Hong Tu, Chang-Ming Huang
PURPOSE: To investigate upper stomach carcinoma risk factors for No. 10 lymph node (LN) metastasis, and establish a preoperative scoring system to predict No.10 LN metastasis. METHOD: Between January 2011 and December 2014, we prospectively collected and retrospectively analyzed the data of 398 patients with upper-third gastric cancer (GC) who underwent laparoscopic spleen-preserving hilar lymph-node dissection (SHLND). We use the logistics regression analysis risk factors of No...
April 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28487604/overexpression-of-fibrinogen-like-protein-2-protects-against-t-cell-induced-colitis
#19
Agata Bartczak, Jianhua Zhang, Oyedele Adeyi, Achiya Amir, David Grant, Reginald Gorczynski, Nazia Selzner, Andrzej Chruscinski, Gary A Levy
AIM: To determine the effect of overexpression of fibrinogen-like protein 2 (FGL2) on regulatory T cell (Treg) and effector T (Teff) cell function on T cell-induced colitis in Rag1(-/-) mice. METHODS: Treg and Teff cells from fgl2(-/-), fgl2(+/+), and fgl2(Tg) mice were purified by FACS. They were studied in vitro for immunosuppressive activity and cell proliferation and in vivo for their effects on the development and prevention of T cell-induced colitis in Rag1(-/-) mice...
April 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28465508/cd8-t-cells-contribute-to-lacrimal-gland-pathology-in-the-nonobese-diabetic-mouse-model-of-sj%C3%A3-gren-syndrome
#20
Jennifer Y Barr, Xiaofang Wang, David K Meyerholz, Scott M Lieberman
Sjögren syndrome is an autoimmune disease characterized by targeted destruction of the lacrimal and salivary glands resulting in symptoms of severe ocular and oral dryness. Despite its prevalence, the mechanisms driving autoimmune manifestations are unclear. In patients and in the nonobese diabetic (NOD) mouse model of Sjögren syndrome, lymphocytic infiltrates consist of CD4 and CD8 T cells, although the role of CD8 T cells in disease pathogenesis has been largely unexplored. Here, we evaluated the contribution of CD8 T cells to lacrimal and salivary gland autoimmunity...
May 3, 2017: Immunology and Cell Biology
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