Video
Jajak Pendapat

Penyakit MERS telah masuk di Indonesia melalui jamaah haji maupun umroh, darimana MERS-CoV ditularkan?...

Unta
Kucing
Kelelawar
Monyet
Belum diketahui

Klinik Respirasi Malang Reservasi Klinik Respirasi Malang Peta Lokasi
Berita Kesehatan

Sputum proteomics and airway cell transcripts of current and ex-smokers with severe asthma in U-BIOP


h2>Abstract

Severe asthma patients with a significant smoking history have airflow obstruction with reported neutrophilia. We hypothesise that multi-omic analysis will enable the definition of smoking and ex-smoking severe asthma molecular phenotypes.

The U-BIOPRED cohort of severe asthma patients, containing current-smokers (CSA), ex-smokers (ESA), nonsmokers and healthy nonsmokers was examined. Blood and sputum cell counts, fractional exhaled nitric oxide and spirometry were obtained. Exploratory proteomic analysis of sputum supernatants and transcriptomic analysis of bronchial brushings, biopsies and sputum cells was performed.

Colony-stimulating factor (CSF)2 protein levels were increased in CSA sputum supernatants, with azurocidin 1, neutrophil elastase and CXCL8 upregulated in ESA. Phagocytosis and innate immune pathways were associated with neutrophilic inflammation in ESA. Gene set variation analysis of bronchial epithelial cell transcriptome from CSA showed enrichment of xenobiotic metabolism, oxidative stress and endoplasmic reticulum stress compared to other groups. CXCL5 and matrix metallopeptidase 12 genes were upregulated in ESA and the epithelial protective genes, mucin 2 and cystatin SN, were downregulated.

Despite little difference in clinical characteristics, CSA were distinguishable from ESA subjects at the sputum proteomic level, with CSA patients having increased CSF2 expression and ESA patients showing sustained loss of epithelial barrier processes.

sumber : http://erj.ersjournals.com/content/51/5/1702173

 
 

PRAKTEK Alamat baru:
RS Panti Waluya /RKZ Sawahan, Lt II-N
, Dr Koentjahja, SpP
Nusakambangan 56, Malang 65117
08113777488 / 362017 ext. 88.23
Pukul 18.00 - selesai, kec. Sabtu / Libur
RUMAHWilis Indah A-6, Malang 65115
0341-568711

Peta Lokasi