Expression of the multidrug-resistant gene in human musculoskeletal tumors.
We measured the levels of messenger RNA of the human multidrug-resistant (MDR) gene in 15 human musculoskeletal tumors. In metastatic tumors and those which did not respond to combination chemotherapy, there was an increased expression of this gene. No evidence of expressions of the MDR gene was found in the benign tumors. The high expression of the MDR gene from musculoskeletal tumors apparently induced a multidrug resistance, and this acquired resistance may be due to outgrowth of the P-glycoprotein-expressing MDR tumor. Elucidation of expression of the MDR gene is an important step in malignant musculoskeletal tumors research.
Department of Orthopaedic Surgery, Kinki University School of Medicine, Osaka, Japan.
Y
Y
Nagata
H
H
Yamasaki
K
K
Fukuda
S
S
Tanaka
T
T
Tsuruo
H
H
Shuntoh
T
T
Kuno
D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1; D000293:Adolescent; D000328:Adult; D000368:Aged; D000818:Animals; D015152:Blotting, Northern; D001859:Bone Neoplasms / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D004351:Drug Resistance / Q000235:genetics*; D005260:Female; D006801:Humans; D008297:Male; D008562:Membrane Glycoproteins / Q000096:biosynthesis; D008875:Middle Aged; D009693:Nucleic Acid Hybridization; D012333:RNA, Messenger / Q000378:metabolism; D012334:RNA, Neoplasm / Q000378:metabolism; D051381:Rats; D011919:Rats, Inbred Strains; D012983:Soft Tissue Neoplasms / Q000235:genetics* / Q000378:metabolism / Q000473:pathology
D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1; D008562:Membrane Glycoproteins; D012333:RNA, Messenger; D012334:RNA, Neoplasm