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Lung immunology

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https://www.readbyqxmd.com/read/28645111/intersecting-transcriptomic-profiling-technologies-and-long-non-coding-rna-function-in-lung-adenocarcinoma-discovery-mechanisms-and-therapeutic-applications
#1
REVIEW
Jonathan Castillo, Theresa R Stueve, Crystal N Marconett
Previously thought of as junk transcripts and pseudogene remnants, long non-coding RNAs (lncRNAs) have come into their own over the last decade as an essential component of cellular activity, regulating a plethora of functions within multicellular organisms. lncRNAs are now known to participate in development, cellular homeostasis, immunological processes, and the development of disease. With the advent of next generation sequencing technology, hundreds of thousands of lncRNAs have been identified. However, movement beyond mere discovery to the understanding of molecular processes has been stymied by the complicated genomic structure, tissue-restricted expression, and diverse regulatory roles lncRNAs play...
June 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28643622/lung-microbiota-and-its-impact-on-the-mucosal-immune-phenotype
#2
Benjamin G Wu, Leopoldo N Segal
The use of culture-independent techniques has allowed us to appreciate that the upper and lower respiratory tract contain a diverse community of microbes in health and disease. Research has only recently explored the effects of the microbiome on the host immune response. The exposure of the human body to the bacterial environment is an important factor for immunological development; thus, the interaction between the microbiome and its host is critical to understanding the pathogenesis of disease. In this article, we discuss the mechanisms that determine the composition of the airway microbiome and its effects on the host immune response...
June 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28637046/the-preoperative-composite-physiologic-index-may-predict-mortality-in-lung-cancer-patients-with-combined-pulmonary-fibrosis-and-emphysema
#3
Fumika Ueno, Yoshiaki Kitaguchi, Takayuki Shiina, Shiho Asaka, Kentaro Miura, Masanori Yasuo, Yosuke Wada, Akihiko Yoshizawa, Masayuki Hanaoka
BACKGROUND: It remains unclear whether the preoperative pulmonary function parameters and prognostic indices that are indicative of nutritional and immunological status are associated with prognosis in lung cancer patients with combined pulmonary fibrosis and emphysema (CPFE) who have undergone surgery. OBJECTIVE: The aim of this study is to identify prognostic determinants in these patients. METHODS: The medical records of all patients with lung cancer associated with CPFE who had undergone surgery at Shinshu University Hospital were retrospectively reviewed to obtain clinical data, including the results of preoperative pulmonary function tests and laboratory examinations, chest high-resolution computed tomography (HRCT), and survival...
June 22, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28631694/-the-influence-of-stat4-rs7574865-g-t-polymorphism-on-the-risk-of-clinical-and-immunological-phenotypes-of-systemic-sclerosis-in-a-russian-patient-population-results-of-a-pilot-study
#4
M Yu Krylov, L P Ananyeva, О А Koneva, M N Starovoytova, O V Desinova, O B Ovsyannikova, E N Aleksandrova, A A Novikov, I A Guseva, N V Konovalova, D A Varlamov
AIM: To examine the association of signal transducer and activator transcription 4 (STAT4) rs7574865 G/T polymorphism with a predisposition to systemic sclerosis (SSC) and associated clinical and autoimmune phenotypes in a Russian population. SUBJECTS AND METHODS: A total of 102 patients with SSC and 103 healthy individuals as controls were examined. STAT4 rs7574865 polymorphism was investigated by real-time polymerase chain reaction. RESULTS: The carriers of the T allele showed a statistically significant association with SSC, a diffuse form (DF), the presence of interstitial lung disease (ILD), cardiac injury (CI), and seropositivity for anti-topoisomerase I antibodies (ATA)...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28630656/physical-activity-black-carbon-exposure-and-dna-methylation-in-the-foxp3-promoter
#5
Stephanie Lovinsky-Desir, Kyung Hwa Jung, Jacqueline R Jezioro, David Z Torrone, Mariangels de Planell-Saguer, Beizhan Yan, Frederica P Perera, Andrew G Rundle, Matthew S Perzanowski, Steven N Chillrud, Rachel L Miller
BACKGROUND: Physical activity is associated with improvement in lung function; however, pollution exposure during physical activity can lead to a transient reduction in lung function. This paradoxical relationship may be linked to altered T regulatory (Treg) cell activity, which increases with exercise and suppresses airway inflammation, but decreases in association with exposure to air pollution. To clarify these relationships, we investigated buccal cell DNA methylation of the forkhead box p3 (FOXP3) gene promoter, a proposed biomarker of Treg activity...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28629122/age-related-changes-in-immunological-and-physiological-responses-following-pulmonary-challenge
#6
REVIEW
Edmund J Miller, Helena M Linge
This review examines the current status of knowledge of sepsis and pneumonia in the elderly population and how the dynamics of the pulmonary challenge affects outcome and consequences. Led by an unprecedented shift in demographics, where a larger proportion of the population will reach an older age, clinical and experimental research shows that aging is associated with certain pulmonary changes, but it is during infectious insult of the lungs, as in the case of pneumonia, that the age-related differences in responsiveness and endurance become obvious and lead to a worse outcome than in the younger population...
June 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28628092/tissue-resident-memory-features-are-linked-to-the-magnitude-of-cytotoxic-t-cell-responses-in-human-lung-cancer
#7
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/28626727/mast-cell-infiltration-in-human-brain-metastases-modulates-the-microenvironment-and-contributes-to-the-metastatic-potential
#8
Ananya Roy, Sylwia Libard, Holger Weishaupt, Ida Gustavsson, Lene Uhrbom, Göran Hesselager, Fredrik J Swartling, Fredrik Pontén, Irina Alafuzoff, Elena Tchougounova
Metastatic brain tumors continue to be a clinical problem, despite new therapeutic advances in cancer treatment. Brain metastases (BMs) are among the most common mass lesions in the brain that are resistant to chemotherapies, have a very poor prognosis, and currently lack any efficient diagnostic tests. Predictions estimate that about 40% of lung and breast cancer patients will develop BM. Despite this, very little is known about the immunological and genetic aberrations that drive tumorigenesis in BM. In this study, we demonstrate the infiltration of mast cells (MCs) in a large cohort of human BM samples with different tissues of origin for primary cancer...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28620263/immunopathological-response-of-leukocytes-against-microfilariae-and-adult-worms-in-white-rats-infected-with-setaria-cervi
#9
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/28619539/systemic-immunological-changes-in-patients-with-distinct-clinical-outcomes-during-mycobacterium-tuberculosis-infection
#10
Tatiane Figueiredo Morais-Papini, Jordana Grazziela Alves Coelho-Dos-Reis, Ana Paula Barbosa Wendling, Lis Ribeiro do Vale Antonelli, Pryscilla Fanini Wowk, Vânia Luiza Deperon Bonato, Valéria Maria Augusto, Silvana Elói-Santos, Olindo Assis Martins-Filho, Cláudia Martins Carneiro, Andréa Teixeira-Carvalho
BACKGROUND: The lung lesions in an individual infected with tuberculosis (TB) are surprisingly variable and independent of each other. However, there is no circulating biomarker yet able to segregate patients according to the extent of lung lesions. MATERIALS AND METHODS: In this study, the phenotypic and functional profile of leukocytes of patients with active pulmonary tuberculosis (TB) and controls (CO) were fully scrutinized by immunophenotyping assays and in vitro short-term whole blood culture...
May 26, 2017: Immunobiology
https://www.readbyqxmd.com/read/28617945/microrna-cluster-106a-363-is-involved-in-t-helper-17-th17-cell-differentiation
#11
Marc Kaestle, Sabine Bartel, Kerstin Geillinger-Kästle, Martin Irmler, Johannes Beckers, Bernhard Ryffel, Oliver Eickelberg, Susanne Krauss-Etschmann
T-helper cell 17 (Th17) mediated inflammation is associated with various diseases including autoimmune encephalitis, inflammatory bowel disease and lung diseases such as chronic obstructive pulmonary disease and asthma. Differentiation into distinct Th subtypes needs to be tightly regulated to ensure an immunological balance. As microRNAs (miRNAs) are critical regulators of signaling pathways, we aimed to identify specific miRNAs implicated in controlling Th17 differentiation. We were able to create a regulatory network model of murine Th cell differentiation by combining Affymetrix mRNA and miRNA arrays and in-silico analysis...
June 15, 2017: Immunology
https://www.readbyqxmd.com/read/28614908/adenoviral-production-of-interleukin-2-at-the-tumor-site-removes-the-need-for-systemic-postconditioning-in-adoptive-cell-therapy
#12
Joao Manuel Santos, Riikka Havunen, Mikko Siurala, Víctor Cervera-Carrascon, Siri Tähtinen, Suvi Sorsa, Marjukka Anttila, Pauliina Karell, Anna Kanerva, Akseli Hemminki
Systemic high-dose interleukin-2 (IL-2) postconditioning has long been utilized in boosting the efficacy of T cells in adoptive cell therapy (ACT) of solid tumors. The resulting severe off-target toxicity of these regimens renders local production at the tumor an attractive concept with possible safety gains. We evaluated the efficacy and safety of intratumorally administered IL-2-coding adenoviruses in combination with tumor-infiltrating lymphocyte therapy in syngeneic Syrian hamsters bearing HapT1 pancreatic tumors and with T cell receptor transgenic ACT in B16...
June 14, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28612844/nlrp3-inflammasome-pathway-has-a-critical-role-in-the-host-immunity-against-clinically-relevant-acinetobacter-baumannii-pulmonary-infection
#13
N Dikshit, S D Kale, H J Khameneh, V Balamuralidhar, C Y Tang, P Kumar, T P Lim, T T Tan, A L Kwa, A Mortellaro, B Sukumaran
The opportunistic Gram-negative bacterium Acinetobacter baumannii (AB) is a leading cause of life-threatening nosocomial pneumonia. Outbreaks of multidrug resistant (MDR)-AB belonging to international clones (ICs) I and II with limited treatment options are major global health threats. However, the pathogenesis mechanisms of various AB clonal groups are understudied. Although inflammation-associated interleukin-1β (IL-1β) levels and IL-1 receptor antagonist polymorphisms were previously implicated in MDR-AB-related pneumonia in patients, whether inflammasomes has any role in the host defense and/or pathogenesis of clinically relevant A...
June 14, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28611970/bronchiectasis-in-children-current-concepts-in-immunology-and-microbiology
#14
REVIEW
Susan J Pizzutto, Kim M Hare, John W Upham
Bronchiectasis is a complex chronic respiratory condition traditionally characterized by chronic infection, airway inflammation, and progressive decline in lung function. Early diagnosis and intensive treatment protocols can stabilize or even improve the clinical prognosis of children with bronchiectasis. However, understanding the host immunologic mechanisms that contribute to recurrent infection and prolonged inflammation has been identified as an important area of research that would contribute substantially to effective prevention strategies for children at risk of bronchiectasis...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28606816/altered-distribution-of-peripheral-blood-dendritic-cell-subsets-in-patients-with-pulmonary-paracoccidioidomycosis
#15
James Venturini, Ricardo Souza Cavalcante, Daniela Vanessa Moris, Márjorie de Assis Golim, Adriele Dandara Levorato, Karoline Hagatha Dos Reis, Maria Sueli Parreira de Arruda, Rinaldo Poncio Mendes
Paracoccidioidomycosis (PCM) is a systemic mycosis caused by fungi from the genus Paracoccidioides in Latin America. PCM-patients (PCM-p) are classified as having acute/subacute or chronic (CF) clinical forms. CF is responsible for 75% - 90% of all cases, affects mainly adults over 30 years old and the clinical manifestation are associated mainly with lungs and mucosa of upper airdigestive tract. In addition, the CF patients exhibit fibrosis of the lungs, oral mucous membranes and adrenals, and pulmonary emphysema...
June 9, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28604843/alcohol-associated-intestinal-dysbiosis-impairs-pulmonary-host-defense-against-klebsiella-pneumoniae
#16
Derrick R Samuelson, Judd E Shellito, Vincent J Maffei, Eric D Tague, Shawn R Campagna, Eugene E Blanchard, Meng Luo, Christopher M Taylor, Martin J J Ronis, Patricia E Molina, David A Welsh
Chronic alcohol consumption perturbs the normal intestinal microbial communities (dysbiosis). To investigate the relationship between alcohol-mediated dysbiosis and pulmonary host defense we developed a fecal adoptive transfer model, which allows us to investigate the impact of alcohol-induced gut dysbiosis on host immune response to an infectious challenge at a distal organ, independent of prevailing alcohol use. Male C57BL/6 mice were treated with a cocktail of antibiotics (ampicillin, gentamicin, neomycin, vancomycin, and metronidazole) via daily gavage for two weeks...
June 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28603089/specific-allergen-immunotherapy-for-the-treatment-of-allergic-asthma-a-review-of-current-evidence
#17
J Dominguez-Ortega, J Delgado, C Blanco, L Prieto, E Arroabarren, M Cimarra, A Henriquez-Santana, J Iglesias-Souto, J M Vega-Chicote, A I Tabar
Asthma is frequently associated with atopy, characterized by the production of specific immunoglobulin E in response to environmental allergens. Currently, two types of allergen immunotherapy (AIT) are used in clinical practice: subcutaneous and sublingual immunotherapy, both accepted as key components of the therapeutic repertoire for allergic rhinitis and conjunctivitis. However, their role in asthma remains controversial. The present document is aimed at providing the clinicians with a review of the evidence on the use of AIT in asthma, focusing on the most relevant aspects of its mechanism of action, its efficacy, and existing data on safety, tolerability, and cost-effectivity, both in pediatric and adult populations...
June 2017: Journal of Investigational Allergology & Clinical Immunology
https://www.readbyqxmd.com/read/28598702/a-safe-and-efficient-bcg-vectored-vaccine-to-prevent-the-disease-caused-by-the-human-respiratory-syncytial-virus
#18
Emma Rey-Jurado, Jorge Soto, Nicolás Gálvez, Alexis M Kalergis
The human Respiratory Syncytial Virus (hRSV) causes lower respiratory tract infections including pneumonia and bronchiolitis. Such infections also cause a large number of hospitalizations and affects mainly newborns, young children and the elderly worldwide. Symptoms associated with hRSV infection are due to an exacerbated immune response characterized by low levels of IFN-γ, recruitment of neutrophils and eosinophils to the site of infection and lung damage. Although hRSV is a major health problem, no vaccines are currently available...
June 9, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28594940/the-introduction-of-mesenchymal-stromal-cells-induces-different-immunological-responses-in-the-lungs-of-healthy-and-m-tuberculosis-infected-mice
#19
Tatiana Nenasheva, Alexander Nikolaev, Daniar Diykanov, Anna Sukhanova, Evgenii Tcyganov, Alexander Panteleev, Irina Bocharova, Yana Serdyuk, Leonid Nezlin, Tatiana Radaeva, Nikolai Adrianov, Yuri Rubtsov, Irina Lyadova
Mesenchymal stromal cells (MSC) have strong immunomodulatory properties and therefore can be used to control inflammation and tissue damage. It was suggested recently that MSC injections can be used to treat multi-drug resistant tuberculosis (TB). However, MSC trafficking and immunomodulatory effects of MSC injections during Mycobacterium tuberculosis (Mtb) infection have not been studied. To address this issue we have analyzed MSC distribution in tissues and local immunological effects of MSC injections in Mtb infected and uninfected mice...
2017: PloS One
https://www.readbyqxmd.com/read/28589946/elevated-prostaglandin-e2-post-bone-marrow-transplant-mediates-interleukin-1%C3%AE-related-lung-injury
#20
G J Martínez-Colón, Q M Taylor, C A Wilke, A B Podsiad, B B Moore
Hematopoietic stem cell transplant (HSCT) treats or cures a variety of hematological and inherited disorders. Unfortunately, patients who undergo HSCT are susceptible to infections by a wide array of opportunistic pathogens. Pseudomonas aeruginosa bacteria can have life-threatening effects in HSCT patients by causing lung pathology that has been linked to high levels of the potent pro-inflammatory cytokine, interleukin-1β (IL-1β). Using a murine bone marrow transplant (BMT) model, we show that overexpression of prostaglandin E2 (PGE2) post-BMT signals via EP2 or EP4 to induce cyclic adenosine monophosphate (cAMP), which activates protein kinase A or the exchange protein activated by cAMP (Epac) to induce cAMP response element binding-dependent transcription of IL-1β leading to exacerbated lung injury in BMT mice...
June 7, 2017: Mucosal Immunology
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