TITLE

Differential Expression of Four Human Dynamin-Like Protein Variants in Brain Tumors

AUTHOR(S)
Chen, Chang-Han; Howng, Shen-Long; Hwang, Shiuh-Lin; Chou, Chen-Kung; Liao, Chen-Hua; Hong, Yi-Ren
PUB. DATE
March 2000
SOURCE
DNA & Cell Biology;Mar2000, Vol. 19 Issue 3, p189
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Dynamin-like protein, a large GTP-binding protein, has recently been cloned, and studies have suggested that it is involved in the formation of coated vesicles. In this report, the differential expression of four human dynamin-like protein splice variants (HdynIV-wildtype [WT],-11, -26, and-37) from various brain tumors was identified by reverse transcription/polymerase chain reaction (RT-PCR). One novel variant (HdynIV-11), not described previously, was identified. The four alternatively spliced variants exhibited tissue specificity in normal tissues. The HdynIV-WT was strongly expressed in the brain, whereas HdynIV-37 was expressed in all tissues examined. Moreover, HdynIV-26 was dominant in the liver and apparently overexpressed in all astrocytomas and most meningiomas and adenomas. This report suggests that HdynIV-26 may cause aberrant protein trafficking and alter vesicle formation in brain tumors. Our results also suggest that dynamin-like protein is associated with various brain tumors and, more importantly, that aberrant expression of the HdynIV-26 variant may play a role in brain tumorigenesis.
ACCESSION #
5322820

 

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