Dataset Information

Proportions of resting memory T cells and monocytes in blood have prognostic significance in idiopathic pulmonary fibrosis.

ABSTRACT: Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease characterized by progressive decline of lung function. Here, we tested the importance of differential proportions of blood immune cells to IPF clinical outcomes. We used Cibersort to deconvolute immune cell components based on PBMCs or whole blood IPF genomics datasets. We found that a higher proportion of resting memory (RM) T cells was associated with a better survival and a higher DLco (diffusing capacity for carbon monoxide) in IPF patients. The association was also found in opposite direction for monocytes. Additionally, in IPF patients as compared to healthy controls, proportions of monocytes were observed to be higher, yet RM T cells were observed to be lower. Taken together, our result suggests a beneficial effect of RM T cells and a detrimental effect of monocytes for IPF. Future genomics studies of IPF should be more focused on these two types of cells.

SUBMITTER: Liu YZ

PROVIDER: S-EPMC6431574 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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Proportions of resting memory T cells and monocytes in blood have prognostic significance in idiopathic pulmonary fibrosis.

Liu Yao-Zhong YZ Saito Shigeki S Morris Gilbert F GF Miller Charles A CA Li Jian J Lefante John J JJ

Genomics 20180924 6

Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease characterized by progressive decline of lung function. Here, we tested the importance of differential proportions of blood immune cells to IPF clinical outcomes. We used Cibersort to deconvolute immune cell components based on PBMCs or whole blood IPF genomics datasets. We found that a higher proportion of resting memory (RM) T cells was associated with a better survival and a higher DLco (diffusing capacity for carbon monoxide) in IP ...[more]

PMID: 30261315

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Project description:INTRODUCTION:Idiopathic pulmonary fibrosis(IPF) is chronic fibrosing interstitial pneumonia of unknown aetiology. IPF is diagnosed based on the exclusion of known causes such as connective tissue diseases(CTDs). However, some patients fail to meet defined CTD criteria regardless of an implication of immunological involvement and these cases were described in a variety of terms. The classification criteria of this clinical entity consist of a combination of clinical, serological and morphological findings and it is reported to be distinct from IPF. However, the significance of the sole presence of autoantibodies complicated with IPF is still unknown. Therefore, this systematic review aims to clarify the significance of autoantibodies complicated with IPF. METHODS AND ANALYSIS:IPF with any autoantibody associated with CTDs is eligible for the review. Primary outcomes are all-cause mortality and pulmonary-cause mortality, while secondary outcomes include a progression of the disease, a deterioration of health-related quality of life and the development of a defined CTD. Primary studies of any type except a case report are included. Two reviewers search four electronic databases such as Medline, EMBASE, Science Citation Index Expanded and Google Scholar from each inception through 1 February 2018 and extract data independently. A risk of bias in individual studies is assessed by the Quality in Prognostic Studies tool. Meta-analysis is sought to be conducted if three or more studies report an outcome for a specific autoantibody with the same statistics. If it is inappropriate to combine data due to substantial heterogeneity, the result is reported qualitatively. Subgroup and sensitivity analyses are considered to identify the source of heterogeneity. The Grades of Recommendation, Assessment, Development and Evaluation method is applied to evaluate the evidence level of the result. ETHICS AND DISSEMINATION:There is no concerning ethical issue. The result will be sought for publication. PROSPERO REGISTRATION NUMBER:CRD42017077336.

Dataset Information

Proportions of resting memory T cells and monocytes in blood have prognostic significance in idiopathic pulmonary fibrosis.

Publications

Proportions of resting memory T cells and monocytes in blood have prognostic significance in idiopathic pulmonary fibrosis.

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