A West Virginia University professor and two alumni have tracked the chromosomal abnormalities associated with a tumor that develops in the eye and often leads to blindness and death.// They're hopeful their findings could someday lead to improved treatment for those who suffer from it.
Joginder Nath, professor of genetics and developmental biology, and former doctoral students Jason White ('02) and Alison Director-Myska ('96) published their findings in two recent issues of Cancer Genetics and Cytogenetics.
The first paper, published in July, describes the specific differences in chromosomal material in cell lines established from sample tissue of these tumors. The second, published in the October issue, describes similar anomalies observed in nearly 100 patients.
Both articles reflect research that comprised a large part of White's doctoral research at WVU. Much of the research was conducted at the Armed Forces Institute of Pathology in Rockville, Md., where Director-Myska headed a lab studying chromosomal aberrations.
"Uveal melanoma develops within the eye, and it's commonly detected when vision begins to be affected," White explained. "By this time, the tumor has grown quite large, and it then migrates to the liver. Once this has occurred, the prognosis is quite poor."
Treatment is often aggressive, involving removal of the eye, though more conservative alternatives are being explored and developed.
The WVU team studied these tumors at the chromosomal level. They studied cell lines from tumor tissue samples, and found common rearrangements in chromosomal configurations.
White found these rearrangements using three different techniques: fluorescence in situ hybridization (FISH), comparative genomic hybridization (CGH), and spectral karyotyping (SKY). FISH involves the fluorescent labeling of a piece of DNA to determine where that piece of DNA is found and how many copies there arePage: 1 2 Related medicine news :1
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