Abstract:
RATIONALE:The mechanism by which acute allograft rejection leads to chronic rejection remains poorly understood despite its common occurrence. Exosomes, membrane vesicles released from cells within the lung allograft, contain a diverse array of biomolecules that closely reflect the biologic state of the cell and tissue from which they are released. Exosome transcriptomes may provide a better understanding of the rejection process. Furthermore, biomarkers originating from this transcriptome could provide timely and sensitive detection of acute cellular rejection (AR), reducing the incidence of severe AR and chronic lung allograft dysfunction and improving outcomes. OBJECTIVES:To provide an in-depth analysis of the bronchoalveolar lavage fluid exosomal shuttle RNA population after lung transplantation and evaluate for differential expression between acute AR and quiescence. METHODS:Serial bronchoalveolar lavage specimens were ultracentrifuged to obtain the exosomal pellet for RNA extraction, on which RNA-Seq was performed. MEASUREMENTS AND MAIN RESULTS:AR demonstrates an intense inflammatory environment, skewed toward both innate and adaptive immune responses. Novel, potential upstream regulators identified offer potential therapeutic targets. CONCLUSIONS:Our findings validate bronchoalveolar lavage fluid exosomal shuttle RNA as a source for understanding the pathophysiology of AR and for biomarker discovery in lung transplantation.
journal_name
Am J Respir Crit Care Medauthors
Gregson AL,Hoji A,Injean P,Poynter ST,Briones C,Palchevskiy V,Weigt SS,Shino MY,Derhovanessian A,Sayah D,Saggar R,Ross D,Ardehali A,Lynch JP 3rd,Belperio JAdoi
10.1164/rccm.201503-0558OCsubject
Has Abstractpub_date
2015-12-15 00:00:00pages
1490-503issue
12eissn
1073-449Xissn
1535-4970journal_volume
192pub_type
杂志文章abstract::In anaphylactic shock (AS), the relative effects of the autacoids including histamine, prostaglandins, and leukotrienes on causing cardiovascular collapse and the extent to which receptor blocking agents and pathway inhibitors may prevent this collapse are not clear. In a ragweed model of anaphylaxis, we examined whet...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.160.4.9901021
更新日期:1999-10-01 00:00:00
abstract::The aim of this study was to assess the influence of preservation solution type and extra- or intracellular composition on the occurrence of early graft dysfunction after clinical lung transplantation. For 170 patients who underwent a single (n = 124) or bilateral (n = 46) lung transplantation in two centers in Paris ...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.164.7.2012135
更新日期:2001-10-01 00:00:00
abstract:RATIONALE:Cytokine receptors can be markers defining different T-cell subsets and considered as therapeutic targets. The association of IL-6 and IL-6 receptor α (IL-6Rα) with asthma was reported, suggesting their involvement in asthma. OBJECTIVES:To determine whether and how IL-6Rα defines a distinct effector memory (...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.201403-0601OC
更新日期:2014-12-15 00:00:00
abstract::The role of immunoglobulin E (IgE) in the development and course of impaired ventilatory function and chronic obstructive pulmonary disease (COPD) required further study. This role has been examined in the longitudinal Tucson Epidemiological Study of Airways Obstructive Disease, which started in 1972. The association ...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.152.1.7599870
更新日期:1995-07-01 00:00:00
abstract::We sought to characterize polymorphisms in the proximal coding region of the lipopolysaccharide binding protein gene and to determine whether a previously reported variant was associated with sepsis complicated by organ failure or shock after trauma. We used multiple analytical methods, including pyrosequencing, restr...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
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更新日期:2003-05-15 00:00:00
abstract::To elucidate the apparent contradictions in vascular remodeling in the lungs of patients with idiopathic pulmonary fibrosis, we evaluated alveolar vascularity in relation to the various degrees of fibrosis in surgically biopsied lungs of usual interstitial pneumonia. Alveolar capillary endothelial cells were intensely...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.200308-1111OC
更新日期:2004-06-01 00:00:00
abstract::The nasal mucosal is the first site of contact with inhaled antigens. However, the nature of local immune responses and the role of nasal-associated lymphoid tissue (NALT) in those responses have rarely been studied. To characterize the cells involved in mucosally derived immune responses, NALT and Peyer's patch (PP) ...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.156.4.97-03017
更新日期:1997-10-01 00:00:00
abstract::The impact of methicillin resistance on morbidity and mortality of patients suffering from severe Staphylococcus aureus infections remains highly controversial. We analyzed a retrospective cohort of 97 patients with methicillin-susceptible and 74 patients with methicillin-resistant Staphylococcus aureus ventilator-ass...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.200403-346OC
更新日期:2004-10-01 00:00:00
abstract::The failure of patients to adhere to physician-prescribed regimens, either pharmacologic or behavioral, has been well documented in medical literature. Poor adherence to asthma medication regimens has been repeatedly demonstrated in both children and adults, with rates of nonadherence commonly reported from 30 to 70%....
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章,评审
doi:10.1164/ajrccm/149.2_Pt_2.S69
更新日期:1994-02-01 00:00:00
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journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.201908-1595WS
更新日期:2020-03-09 00:00:00
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journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.200809-1436OC
更新日期:2009-02-01 00:00:00
abstract:RATIONALE:The vast majority of children around the world undergoing adenotonsillectomy for obstructive sleep apnea-hypopnea syndrome (OSA) are not objectively diagnosed by nocturnal polysomnography because of access availability and cost issues. Automated analysis of nocturnal oximetry (nSpO2), which is readily and glo...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.201705-0930OC
更新日期:2017-12-15 00:00:00
abstract::Because interleukin 8 (IL-8) is a potent neutrophil chemotactic and activating cytokine, we investigated IL-8 production in relation to neutrophil migration and elastase release in the human lung during unilateral community-acquired pneumonia (CAP). In 17 patients, the local response in the involved lung was compared ...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.153.1.8542140
更新日期:1996-01-01 00:00:00
abstract::Decreases in gastric mucosal pH (pHi) are associated with splanchnic hypoxia in animals and with increased mortality in patients. In the present study we measured changes in gastric pHi with a tonometer in septic patients after a short-term infusion of dobutamine. These changes were compared with concurrent alteration...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.150.2.8049810
更新日期:1994-08-01 00:00:00
abstract:RATIONALE:The effect of early life wheezing on respiratory function and continued symptoms through adolescence has not been fully described. Using data from a population-based birth cohort in Tucson, Arizona, we previously described four phenotypes based on the occurrence of wheezing lower respiratory illnesses before ...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.200504-525OC
更新日期:2005-11-15 00:00:00
abstract:RATIONALE:Daily azithromycin decreases acute exacerbations of chronic obstructive pulmonary disease (AECOPD), but long-term side effects are unknown. OBJECTIVES:To identify the types of exacerbations most likely to be reduced and clinical subgroups most likely to benefit from azithromycin, 250 mg daily, added to usual...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章,随机对照试验
doi:10.1164/rccm.201402-0207OC
更新日期:2014-06-15 00:00:00
abstract::Currently the diagnosis of chronic obstructive pulmonary disease (COPD) requires the demonstration of airflow limitation, defined as a post-bronchodilator FEV1/FVC <0.7, a measurement that remains methodologically robust and widely available. FEV1 is one of the most powerful predictors of clinically relevant outcomes ...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.202008-3328PP
更新日期:2020-11-19 00:00:00
abstract::In a prospective study, we screened specimens from 190 mechanically ventilated patients hospitalized in a surgical intensive care unit, and from the environment to assess risks and routes of colonization/infection. Specimens from various sites were collected on admission and once a week throughout each patient's stay....
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.157.3.9702096
更新日期:1998-03-01 00:00:00
abstract::Pulmonary veno-occlusive disease (PVOD) is a rare form of pulmonary hypertension in which the vascular changes originate in the small pulmonary veins and venules. The pathogenesis is unknown and any link with primary pulmonary hypertension (PPH) has been speculative. Mutations in the bone morphogenetic protein recepto...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.200208-861OC
更新日期:2003-03-15 00:00:00
abstract:RATIONALE:Patients with chronic obstructive pulmonary disease (COPD) frequently have albuminuria (indicative of renal endothelial cell injury) associated with hypoxemia. OBJECTIVES:To determine whether (1) cigarette smoke (CS)-induced pulmonary and renal endothelial cell injury explains the association between albumin...
journal_title:American journal of respiratory and critical care medicine
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doi:10.1164/rccm.201609-1765OC
更新日期:2017-06-01 00:00:00
abstract::The etiology of sleep disruption in patients in intensive care units (ICUs) is poorly understood, but is thought to be related to environmental stimuli, especially noise. We sampled 203 patients (121 males and 82 females) from different ICUs (cardiac [CCU], cardiac stepdown [CICU], medical [MICU], and surgical [SICU])...
journal_title:American journal of respiratory and critical care medicine
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更新日期:1999-04-01 00:00:00
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journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.158.3.9707088
更新日期:1998-09-01 00:00:00
abstract::REM-related oxygen desaturation occurs in advanced Duchenne muscular dystrophy (DMD) and might be an independent predictor of disease progression. We have followed 18 patients for 10 yr after an initial respiratory sleep study or until death or onset of nasal ventilation. We measured baseline spirometry, blood gas ten...
journal_title:American journal of respiratory and critical care medicine
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更新日期:1999-07-01 00:00:00
abstract::The effects of glutathione-S-transferase (GST) M1, GSTT1, and GSTP1 genotypes on lung function growth were investigated in 1,940 children enrolled in the Children's Health Study as fourth graders (aged 8-11 years) in two cohorts during 1993 and 1996 and were followed annually over a 4-year period. Genotypes for GSTM1 ...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
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更新日期:2002-09-01 00:00:00
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journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
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更新日期:2012-10-15 00:00:00
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journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2006-06-01 00:00:00
abstract::Transbronchial biopsies (TBBs) are useful to diagnose acute rejection and infection in patients with lung transplants. The value of routine surveillance biopsies (S-TBBs) is not known, and such biopsies with a clinical indication are not without risk and are expensive. One hundred twenty-six 6-mo survivors of heart-lu...
journal_title:American journal of respiratory and critical care medicine
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更新日期:1997-05-01 00:00:00
abstract:RATIONALE:Statin use has been linked to improved lung health in asthma and chronic obstructive pulmonary disease. We hypothesize that statins inhibit allergic airway inflammation and reduce airway hyperreactivity via a mevalonate-dependent mechanism. OBJECTIVES:To determine whether simvastatin attenuates airway inflam...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/rccm.200901-0018OC
更新日期:2009-10-15 00:00:00
abstract::The stimuli controlling pharyngeal dilator muscles are poorly defined. Local mechanoreceptors are a leading possibility. To address this, we assessed the relationship between two dilator muscle electromyograms (EMGs, i.e., genioglossus [GG-an inspiratory phasic muscle], tensor palatini [TP-a tonically active muscle]) ...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
doi:10.1164/ajrccm.162.3.9912067
更新日期:2000-09-01 00:00:00
abstract:RATIONALE:The mechanisms by which oxidants are sensed by cells and cause inflammation are not well understood. OBJECTIVES:This study aimed to determine how cells "sense" soluble oxidants and how this is translated into an inflammatory reaction. METHODS:Monocytes, macrophages, or HEK293 cells (stably transfected with ...
journal_title:American journal of respiratory and critical care medicine
pub_type: 杂志文章
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更新日期:2009-02-15 00:00:00