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Infiltrating lymphocyte

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https://www.readbyqxmd.com/read/28641314/no-additional-prognostic-value-for-mre11-in-squamous-cell-carcinomas-of-the-anus-treated-with-chemo-radiotherapy
#1
Alexandra K Walker, Christiana Kartsonaki, Elena Collantes, Judith Nicholson, Duncan C Gilbert, Anne E Kiltie
BACKGROUND: The majority of anal cancers (84-95%) are driven by infection with human papillomavirus (HPV). HPV-positive tumours show significantly better responses to chemo-radiotherapy when compared with HPV-negative tumours. HPV infection is linked to alterations in DNA damage response proteins, including MRE11. MRE11 is a potential predictive biomarker for response to radiotherapy in muscle-invasive bladder cancer and may hold predictive power in other cancers. METHODS: Using a previously reported cohort, we evaluated the levels of MRE11 in anal cancer and assessed its predictive value in this disease...
June 22, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28641100/bruton-s-tyrosine-kinase-btk-as-a-promising-target-in-solid-tumors
#2
REVIEW
J Molina-Cerrillo, T Alonso-Gordoa, P Gajate, E Grande
Bruton's tyrosine kinase (BTK) is a non-receptor intracellular kinase that belongs to the TEC-family tyrosine kinases together with bone marrow-expressed kinase (BMX), redundant-resting lymphocyte kinase (RLK), and IL-2 inducible T-Cell kinase (ITK). All these proteins play a key role in the intracellular signaling of both B and T lymphocytes. Recently, some preclinical data have demonstrated that BTK is present in certain tumor subtypes and in other relevant cells that are contributing to the tumor microenvironment such as dendritic cells, macrophages, myeloid derived suppressor cells and endothelial cells...
June 9, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28634667/elevated-interleukin-13-receptor-alpha-1-expression-in-tumor-cells-is-associated-with-poor-prognosis-in-patients-with-invasive-breast-cancer
#3
Min Hui Park, Hee Jung Kwon, Jae-Ryong Kim, Byungheon Lee, Soo Jung Lee, Young Kyung Bae
BACKGROUND: Interleukin (IL)-13 is an immunoregulatory, anti-inflammatory cytokine that is produced by numerous immune cells, and plasma membrane receptor for IL-13 (IL-13R) is known to be expressed in various human malignancies and in immune cells. METHODS: The authors evaluated the expression of IL-13R alpha 1 (IL-13Rα1, an IL-13R subtype) by immunohistochemistry in tissue microarrays of 1213 invasive breast cancer (IBC) samples to determine the prognostic value of IL-13Rα1 expression...
June 20, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28634284/co-administration-of-rankl-and-ctla4-antibodies-enhances-lymphocyte-mediated-anti-tumor-immunity-in-mice
#4
Elizabeth Ahern, Heidi Harjunpaa, Deborah Barkauskas, Stacey Allen, Kazuyoshi Takeda, Hideo Yagita, David Wyld, William C Dougall, Michele W L Teng, Mark J Smyth
Purpose: Novel partners for established immune checkpoint inhibitors in the treatment of cancer are needed to address the problems of primary and acquired resistance. The efficacy of combination RANKL and CTLA4 blockade in anti-tumor immunity has been suggested by recent case reports in melanoma. Here we provide a rationale for this combination in mouse models of cancer. <br />Experimental Design: The efficacy and mechanism of a combination of RANKL and CTLA4 blockade was examined by tumor infiltrating lymphocyte analysis, tumor growth and metastasis using a variety of neutralizing antibodies and gene-targeted mice...
June 20, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28633994/t-lymphocytes-infiltration-promotes-blood-brain-barrier-injury-after-experimental-intracerebral-hemorrhage
#5
Xuan Zhang, Wei Liu, Jichao Yuan, Haitao Zhu, Yang Yang, Zexian Wen, Yaxing Chen, Lan Li, Jiangkai Lin, Hua Feng
T lymphocytes migrate into the brain after intracerebral hemorrhage (ICH) and promote cerebral inflammation, thus exacerbating neuronal injury. However, the relationship between of T lymphocytes infiltration and blood-brain barrier (BBB) injury after ICH has not been clarified. In this study, we investigated the spatial-temporal distribution of infiltrating T lymphocytes after ICH in C57BL/6 mice by immunofluorescence and flow cytometry, and the accompanying change rules of BBB permeability were detected by Evans blue dye leakage and tight junction protein expression...
June 17, 2017: Brain Research
https://www.readbyqxmd.com/read/28633753/tumor-necrosis-factor-induced-alopecia-alternative-pathology-and-therapy
#6
Jeremy Udkoff, Philip R Cohen
Tumor necrosis factor (TNF) inhibitors are used to treat Crohn disease and psoriasis. Although they are typically well tolerated, adverse effects include the development of alopecia, and paradoxically, psoriatic lesions. We recently described a woman with Crohn disease who developed alopecia and scalp psoriasis during infliximab therapy. After discontinuing infliximab and beginning oral and topical therapies, her alopecia completely resolved. We compared our experience with that of the Craddock et al. who described a woman with Crohn disease and alopecia secondary to adalimumab therapy...
June 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28632936/peritumoral-cuffing-by-t-cell-tumor-infiltrating-lymphocytes-distinguishes-hpv-related-oropharyngeal-squamous-cell-carcinoma-from-oral-cavity-squamous-cell-carcinoma
#7
Kate Poropatich, David Hernandez, Joel Fontanarosa, Koshonna Brown, Gayle Woloschak, Ajit Paintal, Kirtee Raparia, Sandeep Samant
BACKGROUND: It is unclear why human papillomavirus (HPV)-related head and neck squamous cell carcinoma (HNSCC) has improved clinical behavior compared to HPV-negative HNSCC. We sought to better characterize the immune microenvironment of tongue cancers by examining the CD3 and CD8 TIL pattern in HPV-positive and -negative tumors. METHODS: Histologic sections from 40 oral tongue and oropharyngeal cases were analyzed (n= 21 HPV DNA-positive, n= 19 HPV DNA-negative)...
June 20, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28631713/-braf-positive-paucicellular-variant-of-anaplastic-carcinoma-in-the-presence-of-tall-cell-variant-papillary-thyroid-cancer
#8
O V Dolzhansky, E M Paltseva, D N Khmelkova, F A Konovalov, I V Kanivets, A V Lavrov, D V Pyankov, S A Korostelev, O A Levendyuk, V M Pominalnaya, D N Fedorov
To paper describes a case of paucicellular anaplastic cancer in the presence of tall cell variant papillary thyroid carcinoma. Microscopic examination showed that the differentiated component of the tumor was composed of papillary structures with tall cells, the height of which exceeded 3-4 times the width. Its anaplastic component consisted of fibrous tissue with occasional spindle-shaped cells and focal lymphocytic infiltration to the extent of 70%. The spindle-shaped cells expressed cytokeratins, β-catenin, p53, and vimentin...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28629762/targeting-the-tumor-and-its-associated-stroma-one-and-one-can-make-three-in-adoptive-t-cell-therapy-of-solid-tumors
#9
Anna Mondino, Gerlanda Vella, Laura Icardi
Adoptive T cell therapy (ACT) has become a promising immunotherapeutic option for cancer patients. The proof for ACT therapeutic efficacy was first obtained with allogenic T cells and then reproduced with T cells isolated from patients' tumor samples (i.e. tumor-infiltrating lymphocytes). It is now clear that specificity of ACT products can be educated by genetically engineering T cells with classical T Cell Receptors (TCR) or chimeric antigen receptors (CAR). To date a poor accessibility of the tumor mass and a hostile microenvironment, influenced by genetic and epigenetic instability, mainly limit ACT therapeutic efficacy in the case of solid tumors...
June 15, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/28628234/tumor-targeting-salmonella-typhimurium-a1-r-promotes-tumoricidal-cd8-t-cell-tumor-infiltration-and-arrests-growth-in-a-syngeneic-pancreatic-cancer-orthotopic-mouse-model
#10
Takashi Murakami, Yukihiko Hiroshima, Yong Zhang, Ming Zhao, Tasuku Kiyuna, Ho Kyoung Hwang, Kentaro Miyake, Yuki Homma, Ryutaro Mori, Ryusei Matsuyama, Takashi Chishima, Yasushi Ichikawa, Kuniya Tanaka, Michael Bouvet, Itaru Endo, Robert M Hoffman
The present study determined the effect of tumor-targeting Salmonella typhimurium (S. typhimurium) A1-R on CD8(+) tumor-infiltrating lymphocytes (TILs) in a syngeneic pancreatic cancer orthotopic mouse model. The effect of tumor-targeting Salmonella typhimurium A1-R on CD8(+) TILs was determined on Pan02 murine pancreatic adenocarcinoma cells implanted orthotopically on the pancreatic tail of C57BL/6 mice. Three weeks after orthotopic implantation, mice were randomized into G1: untreated control group (n = 8); and G2: Salmonella typhimurium A1-R treatment group (n = 8, 1 × 10(7) CFU/body, iv, weekly, 3 weeks)...
June 19, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28628092/tissue-resident-memory-features-are-linked-to-the-magnitude-of-cytotoxic-t-cell-responses-in-human-lung-cancer
#11
Anusha-Preethi Ganesan, James Clarke, Oliver Wood, Eva M Garrido-Martin, Serena J Chee, Toby Mellows, Daniela Samaniego-Castruita, Divya Singh, Grégory Seumois, Aiman Alzetani, Edwin Woo, Peter S Friedmann, Emma V King, Gareth J Thomas, Tilman Sanchez-Elsner, Pandurangan Vijayanand, Christian H Ottensmeier
Therapies that boost the anti-tumor responses of cytotoxic T lymphocytes (CTLs) have shown promise; however, clinical responses to the immunotherapeutic agents currently available vary considerably, and the molecular basis of this is unclear. We performed transcriptomic profiling of tumor-infiltrating CTLs from treatment-naive patients with lung cancer to define the molecular features associated with the robustness of anti-tumor immune responses. We observed considerable heterogeneity in the expression of molecules associated with activation of the T cell antigen receptor (TCR) and of immunological-checkpoint molecules such as 4-1BB, PD-1 and TIM-3...
June 19, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28626950/myxoid-variant-of-primary-cutaneous-anaplastic-large-cell-lymphoma-first-two-cases
#12
Angel Fernandez-Flores, Ariana Eginli, David S Cassarino
Anaplastic large cell lymphoma (ALCL) is a CD30+ T-cell non-Hodgkin lymphoma with two main clinical presentations: primary cutaneous (pcALCL) and systemic (sALCL). While rare cases of myxoid sALCL have been reported, there are no previous cases of myxoid pcALCL reported. We present two unusual cases of pcALCL showing prominent collections of dermal mucin closely intermingling with the anaplastic lymphocytes. Patient 1 was a 30-year-old woman who presented with ulcerated nodules on her neck, abdomen, chest, and shoulders...
June 19, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28626618/cytoplasmic-expression-of-c-myc-protein-is-associated-with-risk-stratification-of-mantle-cell-lymphoma
#13
Yi Gong, Xi Zhang, Rui Chen, Yan Wei, Zhongmin Zou, Xinghua Chen
AIM: To investigate the association of C-MYC protein expression and risk stratification in mantle cell lymphoma (MCL), and to evaluate the utility of C-MYC protein as a prognostic biomarker in clinical practice. METHODS: We conducted immunohistochemical staining of C-MYC, Programmed cell death ligand 1 (PD-L1), CD8, Ki-67, p53 and SRY (sex determining region Y) -11 (SOX11) to investigate their expression in 64 patients with MCL. The staining results and other clinical data were evaluated for their roles in risk stratification of MCL cases using ANOVA, Chi-square, and Spearman's Rank correlation coefficient analysis...
2017: PeerJ
https://www.readbyqxmd.com/read/28626376/successful-treatment-for-chronic-hepatitis-c-autoimmune-hepatitis-overlap-syndrome-due-to-daclatasvir-and-asunaprevir
#14
Ayumi Sugiura, Shuichi Wada, Hiromitsu Mori, Takefumi Kimura, Yoshiaki Matsuda, Naoki Tanaka, Eiji Tanaka, Kendo Kiyosawa
Persistent hepatitis C virus (HCV) infection may induce autoimmune diseases and chronic hepatitis C is sometimes accompanied by autoimmune hepatitis (AIH). However, we are worried about the treatment for chronic hepatitis C-AIH overlap syndrome because interferon-based antiviral therapies may enhance autoimmunity and immunosuppressive corticosteroid administration may promote viral replication. Here, we report a patient having chronic hepatitis C-AIH overlap syndrome treated with the direct-acting antivirals (DAA), daclatasvir and asunaprevir...
May 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28622514/landscape-of-infiltrating-t-cells-in-liver-cancer-revealed-by-single-cell-sequencing
#15
Chunhong Zheng, Liangtao Zheng, Jae-Kwang Yoo, Huahu Guo, Yuanyuan Zhang, Xinyi Guo, Boxi Kang, Ruozhen Hu, Julie Y Huang, Qiming Zhang, Zhouzerui Liu, Minghui Dong, Xueda Hu, Wenjun Ouyang, Jirun Peng, Zemin Zhang
Systematic interrogation of tumor-infiltrating lymphocytes is key to the development of immunotherapies and the prediction of their clinical responses in cancers. Here, we perform deep single-cell RNA sequencing on 5,063 single T cells isolated from peripheral blood, tumor, and adjacent normal tissues from six hepatocellular carcinoma patients. The transcriptional profiles of these individual cells, coupled with assembled T cell receptor (TCR) sequences, enable us to identify 11 T cell subsets based on their molecular and functional properties and delineate their developmental trajectory...
June 15, 2017: Cell
https://www.readbyqxmd.com/read/28621440/t-lymphocytes-dominate-local-leukocyte-infiltration-in-response-to-intradermal-injection-of-functionalized-graphene-based-nanomaterial
#16
G F Erf, D M Falcon, K S Sullivan, S E Bourdo
Graphene-based nanomaterials (GBN) have many potential biomedical applications. However, information regarding their biological properties and interactions with cells and/or soluble factors within a complex tissue is limited. The objective of this study was to use the growing feather (GF) of chickens as a minimally invasive cutaneous test-site to assess and monitor leukocyte recruitment in response to intradermal GBN injection. Specifically, the dermis of 20 GFs per chicken was injected with 10 μl of phosphate-buffered saline (PBS)-vehicle or 10 μl of 300 μg ml(-1) oxygen-functionalized (f) GBN (6 chickens/treatment)...
June 16, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28621322/reliability-of-tumor-infiltrating-lymphocyte-and-tertiary-lymphoid-structure-assessment-in-human-breast-cancer
#17
Laurence Buisseret, Christine Desmedt, Soizic Garaud, Marco Fornili, Xiaoxiao Wang, Gert Van den Eyden, Alexandre de Wind, Sebastien Duquenne, Anais Boisson, Celine Naveaux, Francoise Rothé, Sandrine Rorive, Christine Decaestecker, Denis Larsimont, Martine Piccart-Gebhart, Elia Biganzoli, Christos Sotiriou, Karen Willard-Gallo
The presence of tumor-infiltrating lymphocytes (TIL), reflecting host immune activity, is frequently correlated with better clinical outcomes, particularly in HER2-positive and triple-negative breast cancer. Recent findings suggest that organization of immune infiltrates in tertiary lymphoid structures also has a beneficial effect on survival. This study investigated inter- and intra-observer variation in TIL assessment using conventional hematoxylin-eosin versus immunohistochemical staining to identify immune cells...
June 16, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28621227/expression-of-epithelial-mesenchymal-transition-driver-brachyury-and-status-of-tumor-infiltrating-cd8-and-foxp3-lymphocytes-in-predicting-treatment-responses-to-neoadjuvant-chemotherapy-of-breast-cancer
#18
Kwan Ho Lee, Eun Young Kim, Yong Lai Park, Sung-Im Do, Seoung Wan Chae, Chan Heun Park
Brachyury has been characterized as a driver of epithelial-mesenchymal transition process which is regarded as an important mechanism of cancer cell invasion and metastatic progression. The status of tumor-infiltrating lymphocytes has been proposed to predict response to neoadjuvant chemotherapy in breast cancer. We investigated the clinical significance and value of tumor-infiltrating lymphocytes and brachyury as biomarkers to predict treatment responses to neoadjuvant chemotherapy in breast cancer. We also examined the correlation of the Neo-Bioscore with tumor-infiltrating lymphocytes and brachyury to indirectly predict long-term outcome...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28620263/immunopathological-response-of-leukocytes-against-microfilariae-and-adult-worms-in-white-rats-infected-with-setaria-cervi
#19
Sharba Kausar, Wajihullah Khan
AIM: Aim of this study was to see the immunopathological changes against the microfilariae (Mf) and adult worms of a bovine filarid, Setaria cervi in the tissues of vital organs of experimentally infected white rats. The effect of diethylcarbamazine (DEC) was also observed on the Mf, as leukocytes especially lymphocytes produce immunoglobulins which opsonize and increase the efficacy of DEC against circulating Mf. Effect of this drug was also assessed on liver enzymes in the microfilaremic rats...
May 2017: Veterinary World
https://www.readbyqxmd.com/read/28620237/lea29y-expression-in-transgenic-neonatal-porcine-islet-like-cluster-promotes-long-lasting-xenograft-survival-in-humanized-mice-without-immunosuppressive-therapy
#20
L Wolf-van Buerck, M Schuster, F S Oduncu, A Baehr, T Mayr, S Guethoff, J Abicht, B Reichart, N Klymiuk, E Wolf, J Seissler
Genetically engineered pigs are a promising source for islet cell transplantation in type 1 diabetes, but the strong human anti-pig immune response prevents its successful clinical application. Here we studied the efficacy of neonatal porcine islet-like cell clusters (NPICCs) overexpressing LEA29Y, a high-affinity variant of the T cell co-stimulation inhibitor CTLA-4Ig, to engraft and restore normoglycemia after transplantation into streptozotocin-diabetic NOD-SCID IL2rγ(-/-) (NSG) mice stably reconstituted with a human immune system...
June 15, 2017: Scientific Reports
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