Differential Display of messenger RNA Expressed Bronchoalveolar Lavage Cells in Pulmonary Sarcoidosis Patients

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Title ( eng )
Differential Display of messenger RNA Expressed Bronchoalveolar Lavage Cells in Pulmonary Sarcoidosis Patients
Creator
Wiwien Heru Wiyono
Hiyama Keiko
Maeda Hiroyuki
Ishioka Shinichi
Yamakido Michio
Source Title
Hiroshima Journal of Medical Sciences
Volume 45
Issue 1
Start Page 1
End Page 10
Journal Identifire
[PISSN] 0018-2052
[EISSN] 2433-7668
[NCID] AA00664312
Abstract
Sarcoidosis is a systemic granulomatous disease of unknown origin. To clarify its pathogenesis, we searched for known or unknown genes which are specifically expressed in sarcoidosis.  

Bronchoalveolar lavage (BAL) cells from 18 patients with sarcoidosis and 8 patients with various lung diseases were analyzed by differential display method. mRNA was extracted from BAL cells and reverse transcribed with 12 kinds of anchored primer, which theoretically cover all mRNAs, followed by polymerase chain reaction (PCR) with the anchored primer and a 10-mer arbitrary primer. PCR products were displayed on a polyacrylamide gel and fragments showing characteristic alterations in intensity between sarcoidosis and other patients were extracted, sequenced, and compared against Genbank and EMEL DNA data bases.  

One fragment was detected with specifically increased intensity and another disappeared in patients with sarcoidosis. These fragments were likely derived from unknown genes. CD44 and tumor necrosis factor (TNF-α) cDNA sequences were also detected as fragments commonly expressed in sarcoidosis.  

The cloned fragments with specifically increased or decreased intensity in sarcoidosis may provide important information on the pathogenesis of sarcoidosis, and the display pattern implies the potential usefulness of this method as a tool for diagnosis of the disease.
Keywords
Sarcoidosis
Bronchoalveolar lavage (BAL) cells
Differential display
mRNA
Descriptions
This study was supported in part by research grants from Japanese Ministry of Education, Science and Culture and Japanese Ministry of Health and Welfare.
NDC
Medical sciences [ 490 ]
Language
eng
Resource Type departmental bulletin paper
Publisher
Hiroshima University Medical Press
Date of Issued 1996-03
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 0018-2052
[NCID] AA00664312