Genes involved in cell growth and cell division identifiedFebruary 23, 2006A recent study shows that hundreds of genes contribute to cell growth and cell division. For the first time these genes, many of which are potential contributors to cancer, have been mapped in a single systematic study. The group led by Professor Jussi Taipale (University of Helsinki and National Public Health Institute of Finland) has identified genes contributing to cell growth and cell division by systematic silencing of most of the genes in the fruit fly, Drosophila melanogaster. The results are published in the February 23. issue of the journal Nature. The group of Jussi Taipale belongs to the Molecular and Cancer Biology Research Program of the Faculty of Medicine of the University of Helsinki, and the Department of Molecular Medicine of the National Public Health Institute, Finland. The group is part of the Finnish Academy Centre of Excellence for the Translational Genome-Scale Biology. Drosophila cells are an excellent model system to also understand the regulation of growth in human cells as the core machinery involved in this process is very similar in all multicellular organisms from insects to humans. Because the regulation of cell growth is central for embryonic development as well as cancer, it is highly important to have a holistic view on these processes. This study belongs to the emerging field of systems biology, which aims to a comprehensive understanding of cellular mechanisms by carrying out large-scale experiments and combining the data using bioinformatics. The screening of the genes was performed in High Throughput Center of the University of Helsinki. The genome sequencing projects have revealed a large number of genes with unknown functions. The current study lead by professor Taipale identified a number of such functionally unannotated genes in addition to the identification of the majority of known growth regulators. This set of genes provides an excellent starting point for future studies concentrating on the interactions between genes involved in cell growth. University of Helsinki |
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| Related Cell Growth Current Events and Cell Growth News Articles Cancers' Sweet Tooth May Be Weakness The pedal-to-the-metal signals driving the growth of several types of cancer cells lead to a common switch governing the use of glucose, researchers at Winship Cancer Institute of Emory University have discovered. Scientists find molecular trigger that helps prevent aging and disease Researchers at Mount Sinai School of Medicine set out to address a question that has been challenging scientists for years: How do dietary restriction-and the reverse, overconsumption-produce protective effects against aging and disease? Researchers 'notch' a victory toward new kind of cancer drug Scientists have devised an innovative way to disarm a key protein considered to be "undruggable," meaning that all previous efforts to develop a drug against it have failed. Hundreds of genes distinguish patients likely to survive advanced melanoma Although the chances of surviving advanced melanoma aren't very good with current therapies, some patients can live for years with cancer that has spread beyond the skin to other organs. New finding suggests prostate biopsy is not always necessary Researchers at Wake Forest University School of Medicine and the University of Wisconsin-Madison have discovered that some elevated prostate-specific antigen (PSA) levels in men may be caused by a hormone normally occurring in the body, and are not necessarily a predictor of the need for a prostate biopsy. Alternatively spliced tissue factor identified as promising new biomarker for aggressive cancers A recently discovered form of the protein that triggers blood clotting may play a key role in the molecular mechanisms leading to the growth of certain metastatic cancers, according to new research reported by an international team of scientists. Hormone mix could cut breast cancer risk and treat symptoms of menopause The right combination of estrogen and a selective estrogen receptor modulator (SERM), which blocks the effects of estrogen in breast tissue, could relieve menopause symptoms and cut breast cancer risk. New chromosomal abnormality identified in leukemia associated with Down syndrome Researchers identified a new chromosomal abnormality in acute lymphoblastic leukemia (ALL) that appears to work in concert with another mutation to give rise to cancer. This latest anomaly is particularly common in children with Down syndrome. Skin cells may provide early warning for cancer risk elsewhere in body While some scientists have argued that cancer is such a complex genetic disease that you'd have to sequence a person's complete genome in order to predict his or her cancer risk, a University of California, Berkeley, cell biologist suggests that the risk may be more simply determined by inexpensively culturing a few skin cells. New cancer gene discovered A new cancer gene has been discovered by a research group at the Sahlgrenska Academy. The gene causes an insidious form of glandular cancer usually in the head and neck and in women also in the breast. The discovery could lead to quicker and better diagnosis and more effective treatment. More Cell Growth Current Events and Cell Growth News Articles |
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