Chronic idiopathic neutropenia associated with abnormal expression of granulocyte colony-stimulating factor mRNA of bone marrow stromal cells.
Chronic idiopathic neutropenia is an uncommon condition characterized by a low level of neutrophils without any causative disease. We report the details of 4 patients whose stromal cytokine mRNA expressions were examined by reverse transcription polymerase chain reaction. Three patients showed a lower expression of granulocyte colony-stimulating factor (G-CSF) mRNA both in constructive and lipopolysaccharide (LPS)-induced conditions and normal colony forming unit-granulocyte-macrophage (CFU-GM) from the bone marrow cells. One patient showed an increase of G-CSF mRNA and a decrease of CFU-GM. No abnormal expression of other cytokines including interleukin (IL)-1 beta, IL-6 and IL-8 were observed. These findings indicate that cytokine mRNA analysis of stromal cells is useful for elucidation of the etiology.
Kohgo
Y
Y
Fourth Department of Internal Medicine, Sapporo Medical University School of Medicine, Japan.
Hirayama
Y
Y
Matsunaga
T
T
Kato
J
J
Sakamaki
S
S
Niitsu
Y
Y
D000328:Adult; D000368:Aged; D001853:Bone Marrow / Q000378:metabolism* / Q000473:pathology; D002908:Chronic Disease; D005260:Female; D016179:Granulocyte Colony-Stimulating Factor / Q000235:genetics*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009503:Neutropenia / Q000378:metabolism*; D016133:Polymerase Chain Reaction; D012333:RNA, Messenger / Q000378:metabolism*; D017154:Stromal Cells / Q000378:metabolism
D012333:RNA, Messenger; D016179:Granulocyte Colony-Stimulating Factor