Polymerase chain reaction amplification of messages for growth factors in cells from human bronchoalveolar lavage fluids.

Abstract:

:Genetic messages for polypeptide growth factors were assessed in human alveolar macrophages, obtained by bronchoalveolar lavage (BAL) from normal subjects (N = 3) and from patients with pneumonia (N = 3), pulmonary lymphoma (N = 3), and idiopathic pulmonary fibrosis (N = 3). Complementary DNAs (cDNAs) were prepared by reverse transcription of the RNA extracted from alveolar macrophages before and after culture on a plastic surface. The cDNAs encoding 10 different growth factors were amplified for electrophoretic analysis by polymerase chain reaction with a pair of 3' and 5' primers specific for each factor. Alveolar macrophages from all normal subjects and patients expressed the messages for interleukin-1 beta and transforming growth factor-beta. Alveolar macrophages from some normal subjects also contained message for insulin-like growth factor-1. Alveolar macrophages from six of nine patients with lung diseases also expressed messages for one or more additional growth factors, including epidermal growth factor, transforming growth factor-alpha, interleukin-1 alpha, and platelet-derived growth factor. The polymerase chain reaction technique thus permits determination of the profile of growth factors contributed to pulmonary reactions by alveolar macrophages, which may be important in pulmonary healing and fibrosis.

journal_name

Inflammation

journal_title

Inflammation

authors

Adolff CH,Golden JA,Kennedy PW,Goetzl EJ,Turck CW

doi

10.1007/BF00917311

subject

Has Abstract

pub_date

1991-08-01 00:00:00

pages

259-68

issue

4

eissn

0360-3997

issn

1573-2576

journal_volume

15

pub_type

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