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Programmed Cell death AND disease

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https://www.readbyqxmd.com/read/27933060/regulators-of-tfh-cell-differentiation
#1
REVIEW
Gajendra M Jogdand, Suchitra Mohanty, Satish Devadas
The follicular helper T (Tfh) cells help is critical for activation of B cells, antibody class switching, and germinal center (GC) formation. The Tfh cells are characterized by the expression of CXC chemokine receptor 5 (CXCR5), ICOS, programed death 1 (PD-1), B cell lymphoma 6 (BCL-6), and IL-21. They are involved in clearing infections and are adversely linked with autoimmune diseases and also have a role in viral replication as well as clearance. On the one hand, Tfh cells are generated from naive CD4(+) T cells with sequential steps involving cytokine signaling (IL-21, IL-6, IL-12, activin A), migration, and positioning in the GC by CXCR5, surface receptors (ICOS/ICOSL, signaling lymphocyte activation molecule-associated protein/signaling lymphocyte activation molecule) as well as transcription factor (BCL-6, c-Maf, and signal transducer and activator of transcription 3) signaling and repressor miR155...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27932225/hospitalizations-of-children-with-sickle-cell-disease-in-the-brazilian-unified-health-system-in-the-state-of-minas-gerais
#2
Ana Paula P C Fernandes, Fernanda A Avendanha, Marcos B Viana
OBJECTIVE: To identify and characterize hospital admissions and readmissions in the Brazilian Unified Public Health System (Sistema Único de Saúde [SUS]) in children with sickle-cell disease diagnosed by the Minas Gerais Newborn Screening Program between 1999 and 2012. METHODS: Hospital Admission Authorizations with the D57 (ICD-10) code in the fields of primary or secondary diagnosis were retrieved from the SUS Databank (1999-2012). There were 2991 hospitalizations for 969 children...
December 5, 2016: Jornal de Pediatria
https://www.readbyqxmd.com/read/27932073/pyroptosis-gasdermin-mediated-programmed-necrotic-cell-death
#3
REVIEW
Jianjin Shi, Wenqing Gao, Feng Shao
Pyroptosis was long regarded as caspase-1-mediated monocyte death in response to certain bacterial insults. Caspase-1 is activated upon various infectious and immunological challenges through different inflammasomes. The discovery of caspase-11/4/5 function in sensing intracellular lipopolysaccharide expands the spectrum of pyroptosis mediators and also reveals that pyroptosis is not cell type specific. Recent studies identified the pyroptosis executioner, gasdermin D (GSDMD), a substrate of both caspase-1 and caspase-11/4/5...
December 5, 2016: Trends in Biochemical Sciences
https://www.readbyqxmd.com/read/27931835/management-of-patients-with-recurrent-advanced-cervical-cancer-beyond-first-line-platinum-regimens-where-do-we-stand-a-literature-review
#4
REVIEW
Stergios Boussios, Esmeralda Seraj, George Zarkavelis, Dimitrios Petrakis, Aristomenes Kollas, Aikaterini Kafantari, Abraam Assi, Konstantina Tatsi, Nicholas Pavlidis, George Pentheroudakis
BACKGROUND: Cervical cancer is the fourth most common cancer affecting women worldwide. Despite advances in screening and human papillomavirus (HPV) vaccination, a significant number of women present with or develop advanced disease. Palliative platinum-based chemotherapy (CT) is the standard first-line treatment for metastatic/recurrent cervical cancer. The prognosis remains poor and effective second line options are urgently needed. METHODS: We searched the English-language medical literature as well as relevant guideline databases, published from January 1981 to December 2015 and identified publications related to cervical cancer and its therapies...
December 2016: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/27931182/exposure-of-bovine-oocytes-and-embryos-to-elevated-non-esterified-fatty-acid-concentrations-integration-of-epigenetic-and-transcriptomic-signatures-in-resultant-blastocysts
#5
K L J Desmet, V Van Hoeck, D Gagné, E Fournier, A Thakur, A M O'Doherty, C P Walsh, M A Sirard, P E J Bols, J L M R Leroy
BACKGROUND: Metabolic stress associated with negative energy balance in high producing dairy cattle and obesity in women is a risk factor for decreased fertility. Non-esterified fatty acids (NEFA) are involved in this pathogenesis as they jeopardize oocyte and embryo development. Growing evidence indicates that maternal metabolic disorders can disturb epigenetic programming, such as DNA methylation, in the offspring. Oocyte maturation and early embryo development coincide with methylation changes and both are sensitive to adverse environments...
December 8, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27927767/t-cells-in-chronic-lymphocytic-leukemia-display-dysregulated-expression-of-immune-checkpoints-and-activation-markers
#6
Marzia Palma, Giusy Gentilcore, Kia Heimersson, Fariba Mozaffari, Barbro Näsman-Glaser, Emma Young, Richard Rosenquist, Lotta Hansson, Anders Österborg, Håkan Mellstedt
Chronic lymphocytic leukemia is characterized by impaired immune functions largely due to profound T cell defects. T cell functions also depend on co-signaling receptors, inhibitory or stimulatory, known as immune checkpoints, including cytotoxic T lymphocyte-associated antigen-4 (CTLA-4) and programmed death-1 (PD-1). Here we analyzed the T cell phenotype focusing on immune checkpoints and activation markers in chronic lymphocytic leukemia patients (n=80) with different clinical characteristics and compared to healthy controls...
December 7, 2016: Haematologica
https://www.readbyqxmd.com/read/27925177/t-cell-diversification-reflects-antigen-selection-in-the-blood-of-patients-on-immune-checkpoint-inhibition-and-may-be-exploited-as-liquid-biopsy-biomarker
#7
Nuray Akyüz, Anna Brandt, Alexander Stein, Simon Schliffke, Thorben Mährle, Julia Quidde, Eray Goekkurt, Sonja Loges, Thomas Haalck, Christopher Ford, Anne Marie Asemissen, Benjamin Thiele, Janina Radloff, Toni Thenhausen, Artus Krohn-Grimberghe, Carsten Bokemeyer, Mascha Binder
Cancer immunotherapy with antibodies targeting immune checkpoints, such as programmed cell death protein 1 (PD-1), shows encouraging results, but reliable biomarkers predicting response to this costly and potentially toxic treatment approach are still lacking. To explore an immune signature predictive for response, we performed liquid biopsy immunoprofiling in 18 cancer patients undergoing PD-1 inhibition before and shortly after initiation of treatment by multicolor flow cytometry and next-generation T- and B-cell immunosequencing (TCRß/IGH)...
December 7, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27921007/long-term-response-to-nivolumab-and-acute-renal-failure-in-a-patient-with-metastatic-papillary-renal-cell-carcinoma-and-a-pd-l1-tumor-expression-increased-with-sunitinib-therapy-a-case-report
#8
Juan Ruiz-Bañobre, Urbano Anido, Ihab Abdulkader, José Antúnez-López, Rafael López-López, Jorge García-González
INTRODUCTION: Papillary renal cell carcinoma (PRCC), which represents around 20% of renal cell carcinomas, is a heterogeneous disease that includes different tumor types with several clinical and molecular phenotypes. Nivolumab, a fully human IgG4 programed cell death protein 1 immune checkpoint inhibitor antibody, has shown not only an overall survival advantage when compared to everolimus but also a relatively good side-effect profile among patients with previously treated advanced or metastatic renal cell carcinoma...
2016: Frontiers in Oncology
https://www.readbyqxmd.com/read/27913523/advances-and-practical-use-of-monoclonal-antibodies-in-multiple-myeloma-therapy
#9
Hans C Lee, Donna M Weber
The use of proteasome inhibitors and immunomodulatory agents in the treatment of myeloma have resulted in significant improvements in patient outcomes over the last decade. Although these agents now form the backbone of current myeloma treatment regimens both in the frontline and in a relapsed setting, drug resistance remains an inevitable challenge that most patients will encounter during their disease course. Hence, new treatment strategies continue to be explored, and the recent regulatory approvals of the monoclonal antibodies (mAbs) daratumumab (DARA) and elotuzumab (ELO), which target the plasma cell surface proteins CD38 and signaling lymphocytic activation molecule F7 (SLAMF7), respectively, have heralded the long-awaited era of antibody-based approaches in the treatment of myeloma...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27908252/the-combination-of-new-immunotherapy-and-radiotherapy-a-new-potential-treatment-for-locally-advanced-non-small-cell-lung-cancer
#10
Paola Claudia Sacco, Paolo Maione, Cesare Guida, Cesare Gridelli
Lung cancer is the main reason of cancer death worldwide. About 30% of non-small-cell lung cancer (NSCLC) cases are diagnosed with locally advanced disease (stage III). This is a mixed population including patients who have far more extensive and bulky disease than others. Management of these patients continue to be a challenge; frequently, patients have both local recurrence and distant metastases in this stage and the prognosis is very poor with a 5-year overall survival estimated between 3% and 7% for inoperable disease...
December 1, 2016: Current Clinical Pharmacology
https://www.readbyqxmd.com/read/27907031/in-vitro-pre-clinical-validation-of-suicide-gene-modified-anti-cd33-redirected-chimeric-antigen-receptor-t-cells-for-acute-myeloid-leukemia
#11
Kentaro Minagawa, Muhammad O Jamil, Mustafa Al-Obaidi, Larisa Pereboeva, Donna Salzman, Harry P Erba, Lawrence S Lamb, Ravi Bhatia, Shin Mineishi, Antonio Di Stasi
BACKGROUND: Approximately fifty percent of patients with acute myeloid leukemia can be cured with current therapeutic strategies which include, standard dose chemotherapy for patients at standard risk of relapse as assessed by cytogenetic and molecular analysis, or high-dose chemotherapy with allogeneic hematopoietic stem cell transplant for high-risk patients. Despite allogeneic hematopoietic stem cell transplant about 25% of patients still succumb to disease relapse, therefore, novel strategies are needed to improve the outcome of patients with acute myeloid leukemia...
2016: PloS One
https://www.readbyqxmd.com/read/27903442/are-micrornas-true-sensors-of-ageing-and-cellular-senescence
#12
REVIEW
Justin Williams, Flint Smith, Subodh Kumar, Murali Vijayan, P Hemachandra Reddy
All living beings are programmed to death due to aging and age-related processes. Aging is a normal process of every living species. While all cells are inevitably progressing towards death, many disease processes accelerate the aging process, leading to senescence. Pathologies such as Alzheimer's disease, Parkinson's disease, multiple sclerosis, amyotrophic lateral sclerosis, Huntington's disease, cardiovascular disease, cancer, and skin diseases have been associated with deregulated aging. Healthy aging can delay onset of all age-related diseases...
November 26, 2016: Ageing Research Reviews
https://www.readbyqxmd.com/read/27902752/dose-dependent-dual-effect-of-baicalin-and-herb-huang-qin-extract-on-angiogenesis
#13
Dongqing Zhu, Shanshan Wang, John Lawless, Jianchen He, Zhengui Zheng
Huang Qin (root of Scutellaria baicalensis) is a widely used herb in different countries for adjuvant therapy of inflammation, diabetes, hypertension, different kinds of cancer and virus related diseases. Baicalin is the main flavonoid in this herb and has been extensively studied for 30 years. The angiogenic effect of herb Huang Qin extract and baicalin was found 13 years ago, however, the results were controversial with pro-angiogenic effect in some studies and anti-angiogenic effect in others. In this paper, the angiogenic effect of baicalin, its aglycone form baicalein and aqueous extract of Huang Qin was studied in chick embryo chorioallantoic membrane (CAM) model...
2016: PloS One
https://www.readbyqxmd.com/read/27902649/increasing-incidence-of-life-threatening-pertussis-a-retrospective-cohort-study-in-new-zealand
#14
Emma Macdonald-Laurs, Anusha Ganeshalingham, Jonathan Lillie, Brent McSharry, Elizabeth R Segedin, Emma Best, Avinesh Pillai, Anthony Harnden, Catherine A Gilchrist, Cameron C Grant
BACKGROUND: Pertussis immunization programs aim to prevent severe infant disease. We investigated temporal trends in infant pertussis deaths and pediatric intensive care unit (PICU) admissions and associations of changes in disease detection and vaccines used with death and PICU admission rates. METHODS: Using national data from New Zealand (NZ) we described infant pertussis deaths and PICU admissions from 1991-2013, over which time national immunization coverage at age 2 years increased from <80% to 92%...
November 28, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27898102/a-role-of-the-fuzzy-onions-like-gene-in-regulating-cell-death-and-defense-in-arabidopsis
#15
Arianne Tremblay, Savanna Seabolt, Hongyun Zeng, Chong Zhang, Stefan Böckler, Dominique N Tate, Vy Thuy Duong, Nan Yao, Hua Lu
Programmed cell death (PCD) is critical for development and responses to environmental stimuli in many organisms. FUZZY ONIONS (FZO) proteins in yeast, flies, and mammals are known to affect mitochondrial fusion and function. Arabidopsis FZO-LIKE (FZL) was shown as a chloroplast protein that regulates chloroplast morphology and cell death. We cloned the FZL gene based on the lesion mimic phenotype conferred by an fzl mutation. Here we provide evidence to support that FZL has evolved new function different from its homologs from other organisms...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27887847/role-of-the-htlv-1-viral-factors-in-the-induction-of-apoptosis
#16
REVIEW
Mohammad Karimi, Hamed Mohammadi, Maryam Hemmatzadeh, Asadollah Mohammadi, Houshang Rafatpanah, Behzad Baradaran
Adult T-cell leukemia (ATL) and HTLV-1-associated Myelopathy/Tropical Spastic Paraparesis (HAM/TSP) are the two main diseases that are caused by the HTLV-1 virus. One of the features of HTLV-1 infection is its resistance against programmed cell death, which maintains the survival of cells to oncogenic transformation and underlies the viruses' therapeutic resistance. Two main genes by which the virus develops cancer are Tax and HBZ; playing an essential role in angiogenesis in regulating viral transcription and modulating multiple host factors as well as apoptosis pathways...
November 22, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27886851/the-role-of-necroptosis-in-pulmonary-diseases
#17
REVIEW
Kenji Mizumura, Shuichiro Maruoka, Yasuhiro Gon, Augustine M K Choi, Shu Hashimoto
By regulating the cell number and eliminating harmful cells, programmed cell death plays a critical role in development, homeostasis, and disease. While apoptosis is a recognized form of programmed cell death, necrosis was considered a type of uncontrolled cell death induced by extreme physical or chemical stress. However, recent studies have revealed the existence of a genetically programmed and regulated form of necrosis, termed necroptosis. Necroptosis is defined as necrotic cell death that is dependent on receptor-interacting protein kinase 3 (RIPK3)...
November 2016: Respiratory Investigation
https://www.readbyqxmd.com/read/27884973/the-emerging-role-of-immune-checkpoint-inhibition-in-malignant-lymphoma
#18
Ida Hude, Stephanie Sasse, Andreas Engert, Paul J Bröckelmann
To evade elimination by the host immune system, tumor cells commonly exploit physiological immune checkpoint pathways, restraining efficient anti-tumor immune cell function. Growing understanding of the complex dialog between tumor cells and their microenvironment contributed to the development of immune checkpoint inhibitors. This innovative strategy has demonstrated paradigm-shifting clinical activity in various malignancies. Antibodies targeting programmed death 1 and cytotoxic T-lymphocyte-associated protein-4 are also being investigated in lymphoid malignancies with varying levels of activity and a favorable toxicity profile...
November 24, 2016: Haematologica
https://www.readbyqxmd.com/read/27882863/porphyromonas-gingivalis-suppresses-adaptive-immunity-in-periodontitis-atherosclerosis-and-alzheimer-s-disease
#19
REVIEW
Ingar Olsen, Martin A Taubman, Sim K Singhrao
Porphyromonas gingivalis, a keystone pathogen in chronic periodontitis, has been found to associate with remote body organ inflammatory pathologies, including atherosclerosis and Alzheimer's disease (AD). Although P. gingivalis has a plethora of virulence factors, much of its pathogenicity is surprisingly related to the overall immunosuppression of the host. This review focuses on P. gingivalis aiding suppression of the host's adaptive immune system involving manipulation of cellular immunological responses, specifically T cells and B cells in periodontitis and related conditions...
2016: Journal of Oral Microbiology
https://www.readbyqxmd.com/read/27879975/metastatic-merkel-cell-carcinoma-response-to-nivolumab
#20
Frances M Walocko, Benjamin Y Scheier, Paul W Harms, Leslie A Fecher, Christopher D Lao
BACKGROUND: Merkel cell carcinoma (MCC) is an aggressive cutaneous neuroendocrine malignancy with limited treatment options. Several lines of evidence support the programmed death-1/programmed death-ligand 1 (PD-1/PD-L1) axis as a likely contributor to immune evasion in MCC. CASE PRESENTATION: We report a case of a patient with metastatic MCC with a significant and durable response to nivolumab, a humanized IgG4 monoclonal anti-PD-1 antibody. CONCLUSION: Immunotherapy with PD-1/PD-L1 inhibitors has become a rational and promising treatment option for MCC in the advanced or metastatic disease...
2016: Journal for Immunotherapy of Cancer
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