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Immunoprofile

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https://www.readbyqxmd.com/read/27904140/restrictions-in-the-t-cell-repertoire-of-chronic-lymphocytic-leukemia-high-throughput-immunoprofiling-supports-selection-by-shared-antigenic-elements
#1
A Vardi, E Vlachonikola, M Karypidou, E Stalika, V Bikos, K Gemenetzi, C Maramis, A Siorenta, A Anagnostopoulos, S Pospisilova, N Maglaveras, I Chouvarda, K Stamatopoulos, A Hadzidimitriou
Immunoglobulin (IG) gene repertoire restrictions strongly support antigen selection in the pathogenesis of chronic lymphocytic leukemia (CLL). Given the emerging multifarious interactions between CLL and bystander T cells, we sought to determine whether antigen(s) are also selecting T cells in CLL. We performed a large-scale, next-generation sequencing (NGS) study of the T-cell repertoire, focusing on major stereotyped subsets representing CLL subgroups with undisputed antigenic drive, but also included patients carrying non-subset IG rearrangements to seek for T-cell immunogenetic signatures ubiquitous in CLL...
December 1, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27885435/comparison-of-immunophenotypes-of-primary-breast-carcinomas-and-multiple-corresponding-distant-metastases-an-autopsy-study-of-25-patients
#2
B Szekely, Zs I Nagy, Zs Farago, O Kiss, G Lotz, K A Kovacs, L Madaras, N Udvarhelyi, M Dank, Gy Szentmartoni, Zs Baranyai, L Harsanyi, A M Tőkés, Jozsef Timar, A M Szasz, J Kulka
Phenotypical change in metastatic breast carcinoma has widely been accepted as an inherent biological feature rather than technical fault. We analyzed the immunohistochemical phenotype and histopathological features of 25 primary breast carcinomas and 90 corresponding distant metastases in 23 organs retrospectively. Histological slides were reviewed for prognostic and predictive factors. Overall, metastases were more similar to each other and often differed from the primary tumor. We created a 3-step grouping system based on the localization of metastases...
November 24, 2016: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/27870702/synchronous-ovarian-and-appendiceal-mucinous-neoplasms-in-the-absence-of-pseudomyxoma-peritonei
#3
Xianyong Gui, Jorge Escobar, Cheng-Han Lee, Máire A Duggan, Martin Köbel
BACKGROUND: Synchronous ovarian/appendiceal mucinous neoplasms sometimes occur in the absence of clinical pseudomyxoma peritonei (PMP), which raises a question about whether the 2 tumors could be independent. METHODS: We identified 11 cases of synchronous ovarian/appendiceal mucinous neoplasms without PMP and subclassified them into groups 1 and 2 based on the presence or absence of microscopic peritoneal/ovarian surface mucin deposits. A 7-marker panel (CK7, CK20, CDX2, PAX8, MUC1, MUC2, and MUC5AC) immunohistochemistry was performed on both tumors...
November 17, 2016: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/27858932/plasma-immunoprofiling-of-patients-with-high-risk-diffuse-large-b-cell-lymphoma-a-nordic-lymphoma-group-study
#4
F Pauly, K Fjordén, S Leppä, H Holte, M Björkholm, Ø Fluge, L Møller Pedersen, M Eriksson, A Isinger-Ekstrand, C A K Borrebaeck, M Jerkeman, C Wingren
No abstract text is available yet for this article.
November 18, 2016: Blood Cancer Journal
https://www.readbyqxmd.com/read/27834468/expression-of-cd74-in-invasive-breast-carcinoma-its-relation-to-nottingham-prognostic-index-hormone-receptors-and-her2-immunoprofile
#5
Eiman Adel Hasby, Rana Adel Khalifa
PURPOSE: To study the immunohistochemical expression of CD74 in series of invasive breast carcinomas classified according to their estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) immunoprofile and explore its correlation to Nottingham Prognostic Index (NPI) and tumor pathologic stage to determine if it has a prognostic value. METHODS: A total of 160 cases of mammary carcinoma were classified broadly according to their ER, PR, and HER2 expression into luminal, HER2-positive, and triple-negative groups...
October 29, 2016: Tumori
https://www.readbyqxmd.com/read/27833971/study-of-some-invasiveness-markers-as-pathogenic-factors-in-oral-pseudoepitheliomatous-hyperplasia
#6
Roxana Maria Pascu, Claudiu Mărgăritescu, Monica Mihaela CrăiŢoiu, Alma Maria Florescu, Ileana Cristiana Croitoru, Adelina Gabriela Bobic, Ciprian LaurenŢiu Pătru, Gheorghe Dan Mălăescu, Ştefania CrăiŢoiu
Pseudoepitheliomatous hyperplasia is a benign reactivated epithelial lesion secondary to another pathology, whose incidence is difficult to establish. There still exist controversies regarding the origin and pathogenesis of these lesions. For this purpose, we performed an immuno-histochemical study upon 20 cases of oral pseudoepitheliomatous hyperplasia associated with inflammatory and neoplastic conditions, investigating a series of markers with a possible pathogenic potential in developing this type of lesions...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27829763/comparative-evaluation-of-serum-and-salivary-immunoglobulin-g-and-a-levels-with-total-serum-protein-in-oral-submucous-fibrosis-patients-a-case-control-study
#7
M Kandasamy, N Jaisanghar, Ravi David Austin, Kumar Chandan Srivastava, G Sai Anusuya, N Anisa
AIM AND OBJECTIVE: The objective of this study is to estimate and compare the serum and salivary immunoglobulin G and A (IgG, IgA) levels in various stages of oral submucous fibrosis (OSMF) patients and relate it to total serum protein (TSP) and hemoglobin (Hb) levels. MATERIALS AND METHODS: The sample for the present study comprised a total of 20 healthy controls, 20 OSMF patients. About 5 ml of blood and 2 ml of saliva were collected. Quantitative analysis of serum and salivary IgG, IgA was done by turbidometric immunoassay...
October 2016: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/27810697/lymphocyte-predominant-triple-negative-breast-carcinomas-in-premenopausal-patients-lower-expression-of-basal-immunohistochemical-markers
#8
Sergio Mitsuo Masili-Oku, Bernardo Gomes Lacerda de Almeida, Carlos Eduardo Bacchi, Jose Roberto Filassi, Edmund Chada Baracat, Filomena Marino Carvalho
OBJECTIVES: Triple-negative breast carcinomas (TNBCs) correspond to a molecular heterogeneous disease defined by lack of estrogen and progesterone receptor expression, and the absence of overexpression and/or amplification of HER2. Recent data indicate that clinical outcome in TNBC is affected by tumor-infiltrating lymphocytes, suggesting that they can benefit from immunotherapies. We selected 116 consecutive premenopausal patients with TNBC to compare the immunohistochemical profile of the group rich in tumor-infiltrating lymphocytes with those without this characteristic...
October 28, 2016: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/27806849/dermatofibrosarcoma-protuberans-pathology-genetics-and-potential-therapeutic-strategies
#9
Khin Thway, Jonathan Noujaim, Robin L Jones, Cyril Fisher
Dermatofibrosarcoma protuberans (DFSP), the most common dermal sarcoma, is a malignant fibroblastic tumor most frequently arising in middle-aged adults. It is typically a low-grade sarcoma that grows slowly but has a high rate of local recurrence with low metastatic potential. Dermatofibrosarcoma protuberans is characterized by a specific translocation t(17;22)(q22;q13) leading to the formation of COL1A1-PDGFB fusion transcripts. Histologically, DFSP has characteristic morphology, of storiform islands of bland spindle cells, and immunohistochemically, it shows diffuse expression of CD34...
December 2016: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/27800206/immune-complex-mediated-glomerulonephritis-with-acute-thrombotic-microangiopathy-following-newly-detected-hepatitis-b-virus-infection-in-a-kidney-transplant-recipient
#10
Tracey Salter, Hannah Burton, Sam Douthwaite, William Newsholme, Catherine Horsfield, Rachel Hilton
Hepatitis B virus (HBV) presents a risk to patients and staff in renal units. To minimise viral transmission, there are international and UK guidelines recommending HBV immunisation for patients commencing renal replacement therapy (RRT) and HBV surveillance in kidney transplant recipients. We report the case of a 56-year-old male who was immunised against HBV before starting haemodialysis. He received a deceased donor kidney transplant three years later, at which time there was no evidence of HBV infection...
2016: Case Reports in Transplantation
https://www.readbyqxmd.com/read/27781378/mass-cytometry-reveals-a-distinct-immunoprofile-of-operational-tolerance-in-pediatric-liver-transplantation
#11
Audrey H Lau, Matthew J Vitalone, Kelly Haas, Todd Shawler, Carlos O Esquivel, William E Berquist, Olivia M Martinez, Ricardo O Castillo, Sheri M Krams
Long-term IS in transplant patients has significant morbidity, poorer quality of life, and substantial economic costs. TOL, defined as graft acceptance without functional impairment in the absence of IS, has been achieved in some pediatric LT recipients. Using mass cytometry, peripheral blood immunotyping was performed to characterize differences between tolerant patients and patients who are stable on single-agent IS. Single-cell mass cytometry was performed using blood samples from a single-center pediatric LT population of operationally tolerant patients to comprehensively characterize the immune cell populations in the tolerant state compared with patients on chronic low-dose IS...
October 26, 2016: Pediatric Transplantation
https://www.readbyqxmd.com/read/27770513/cytology-diagnosis-of-metastatic-clear-cell-renal-cell-carcinoma-synchronous-to-pancreas-and-metachronous-to-thyroid-and-contralateral-adrenal-report-of-a-case-and-literature-review
#12
Aqiba Bokhari, Patricia G Tiscornia-Wasserman
Renal cell carcinoma metastases to pancreas, thyroid, and contralateral adrenal gland are decidedly uncommon. Clear cell renal cell carcinoma (CCRCC) is the most frequent subtype. Cytology diagnosis may be challenging. A 74-year-old male with remote history of vocal cord malignancy and hypertension presented with abdominal pain. Computed tomography (CT) revealed 8.4 cm left renal mass highly suspicious for renal cell carcinoma, a 1.8 cm mass within vessels near left adrenal and a 2.5 cm mass in pancreatic tail...
October 22, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27753659/expression-of-tle-1-and-cd99-in-carcinoma-pitfalls-in-diagnosis-of-synovial-sarcoma
#13
Daniel J Zaccarini, Xiaobing Deng, Jamie Tull, Charlene Maciak, Alfredo L Valente, Shengle Zhang
The characteristic immunoprofile for the diagnosis of synovial sarcoma, a neoplasm of unclear tissue origin, is expression of transducer-like enhancer of split 1 (TLE-1), CD99, partial expression of cytokeratin, and epithelial membrane antigen by immunohistochemistry (IHC). Diagnostic dilemma or misdiagnosis can occur due to overlap in IHC and morphology with carcinomas, and particularly poorly differentiated and metastatic tumors. The frequency of TLE-1 and CD99 expression in carcinomas by IHC has not been previously assessed...
October 7, 2016: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/27744503/immunoprofiling-of-glial-tumours-of-the-neurohypophysis-suggests-a-common-pituicytic-origin-of-neoplastic-cells
#14
Christian Hagel, Rolf Buslei, Michael Buchfelder, Rudolf Fahlbusch, Markus Bergmann, Armin Giese, Jörg Flitsch, Dieter K Lüdecke, Markus Glatzel, Wolfgang Saeger
PURPOSE: To analyse the antigen expression profiles of 27 cases of pituicytoma, spindle cell oncocytoma, and granular cell tumour of the sellar region concerning a common pituicytic origin of neoplastic cells. METHODS: Material from 12 female and 15 male patients (13 granular cell tumours of the sellar region, 10 pituicytomas, four spindle cell oncocytomas) collected in the German Registry of Pituitary Tumours between 1993 and 2015 was re-evaluated according to the current WHO classification of tumours of the central nervous system and supplementary immunohistochemistry including S100-protein, CD56, CD68, thyroid transcription factor-1 (TTF-1), and Ki-67 was performed...
October 15, 2016: Pituitary
https://www.readbyqxmd.com/read/27742700/arrest-interrogate-an-interactive-immunoprofiler-for-ig-tr-ngs-data
#15
Vojtech Bystry, Tomas Reigl, Adam Krejci, Martin Demko, Barbora Hanakova, Andrea Grioni, Henrik Knecht, Max Schlitt, Peter Dreger, Leopold Sellner, Dietrich Herrmann, Marine Pingeon, Myriam Boudjoghra, Jos Rijntjes, Christiane Pott, Anton W Langerak, Patricia J T A Groenen, Frederic Davi, Monika Brüggemann, Nikos Darzentas
MOTIVATION: The study of immunoglobulins and T cell receptors using next-generation sequencing has finally allowed exploring immune repertoires and responses in their immense variability and complexity. Unsurprisingly, their analysis and interpretation is a highly convoluted task. RESULTS: We thus implemented ARResT/Interrogate, a web-based, interactive application. It can organize and filter large amounts of immunogenetic data by numerous criteria, calculate several relevant statistics, and present results in the form of multiple interconnected visualizations...
October 13, 2016: Bioinformatics
https://www.readbyqxmd.com/read/27734029/hepatoblastoma-modeling-in-mice-places-nrf2-within-a-cancer-field-established-by-mutant-%C3%AE-catenin
#16
Sarah A Comerford, Elizabeth A Hinnant, Yidong Chen, Hima Bansal, Shawn Klapproth, Dinesh Rakheja, Milton J Finegold, Dolores Lopez-Terrada, Kathryn A O'Donnell, Gail E Tomlinson, Robert E Hammer
Aberrant wnt/β-catenin signaling and amplification/overexpression of Myc are associated with hepatoblastoma (HB), the most prevalent type of childhood liver cancer. To address their roles in the pathogenesis of HB, we generated mice in which Myc and mutant β-catenin were targeted to immature cells of the developing mouse liver. Perinatal coexpression of both genes promoted the preferential development of HBs over other tumor types in neonatal mice, all of which bore striking resemblance to their human counterparts...
October 6, 2016: JCI Insight
https://www.readbyqxmd.com/read/27705923/mucins-and-associated-o-glycans-based-immunoprofile-for-stratification-of-colorectal-polyps-clinical-implication-for-improved-colon-surveillance
#17
Shiv Ram Krishn, Sukhwinder Kaur, Yuri M Sheinin, Lynette M Smith, Shailendra K Gautam, Asish Patel, Maneesh Jain, Vasthala Juvvigunta, Priya Pai, Audrey J Lazenby, Hemant K Roy, Surinder K Batra
Sessile serrated adenoma/polyps (SSA/P) are premalignant lesions of colorectal cancer that are difficult to distinguish histologically from hyperplastic polyps (HP) of minimal to no malignant potential. Specific markers for differentiating SSA/P from HP can aid clinicians for optimizing colon surveillance intervals. The present study investigates the potential of mucins and associated O-glycans to distinguish SSA/P from HP. Expression of colonic mucins (MUC1, MUC4, MUC17, MUC2, and MUC5AC) and O-glycans [Sialyl LewisA (CA19-9) and Tn/Sialyl-Tn on MUC1] were analyzed in HP (n=33), SSA/P (n=39), and tubular adenoma (TA) (n=36) samples by immunohistochemistry...
September 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27699239/multiparametric-profiling-of-non-small-cell-lung-cancers-reveals-distinct-immunophenotypes
#18
Patrick H Lizotte, Elena V Ivanova, Mark M Awad, Robert E Jones, Lauren Keogh, Hongye Liu, Ruben Dries, Christina Almonte, Grit S Herter-Sprie, Abigail Santos, Nora B Feeney, Cloud P Paweletz, Meghana M Kulkarni, Adam J Bass, Anil K Rustgi, Guo-Cheng Yuan, Donald W Kufe, Pasi A Jänne, Peter S Hammerman, Lynette M Sholl, F Stephen Hodi, William G Richards, Raphael Bueno, Jessie M English, Mark A Bittinger, Kwok-Kin Wong
BACKGROUND. Immune checkpoint blockade improves survival in a subset of patients with non-small-cell lung cancer (NSCLC), but robust biomarkers that predict response to PD-1 pathway inhibitors are lacking. Furthermore, our understanding of the diversity of the NSCLC tumor immune microenvironment remains limited. METHODS. We performed comprehensive flow cytometric immunoprofiling on both tumor and immune cells from 51 NSCLCs and integrated this analysis with clinical and histopathologic characteristics, next-generation sequencing, mRNA expression, and PD-L1 immunohistochemistry (IHC)...
September 8, 2016: JCI Insight
https://www.readbyqxmd.com/read/27694630/deciphering-systemic-lupus-erythematosus-associated-serum-biomarkers-reflecting-apoptosis-and-disease-activity
#19
P Delfani, G Sturfelt, B Gullstrand, A Carlsson, M Kassandra, C A K Borrebaeck, A A Bengtsson, C Wingren
Systemic lupus erythematosus (SLE) is a severe chronic inflammatory autoimmune connective tissue disease. Despite major efforts, SLE remains a poorly understood disease with unpredictable course, unknown etiology and complex pathogenesis. Apoptosis combined with deficiency in clearing apoptotic cells is an important etiopathogenic event in SLE, which could contribute to the increased load of potential autoantigen(s); however, the lack of disease-specific protein signatures deciphering SLE and the underlying biological processes is striking and represents a key limitation...
September 30, 2016: Lupus
https://www.readbyqxmd.com/read/27667992/imgt-statclonotype-for-pairwise-evaluation-and-visualization-of-ngs-ig-and-tr-imgt-clonotype-aa-diversity-or-expression-from-imgt-highv-quest
#20
Safa Aouinti, Véronique Giudicelli, Patrice Duroux, Dhafer Malouche, Sofia Kossida, Marie-Paule Lefranc
There is a huge need for standardized analysis and statistical procedures in order to compare the complex immune repertoires of antigen receptors immunoglobulins (IG) and T cell receptors (TR) obtained by next generation sequencing (NGS). NGS technologies generate millions of nucleotide sequences and have led to the development of new tools. The IMGT/HighV-QUEST, available since 2010, is the first global web portal for the analysis of IG and TR high throughput sequences. IMGT/HighV-QUEST provides standardized outputs for the characterization of the "IMGT clonotype (AA)" (AA for amino acids) and their comparison in up to one million sequences...
2016: Frontiers in Immunology
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