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Science News for April 6, 2003


Brain gliomas progress as function of crucial gene is lost

A study by the University of Texas M. D. Anderson Cancer Center reveals a strong correlation between the loss of AP-2( transcription factor and the progression of different human gliomas. The findings suggest that this gene acts as a tumor suppressor, controlling various genes involved in cell proliferation and invasion.

SourceUniversity of Texas M. D. Anderson Cancer Center·DateApr 6, 2003
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Catastrophic decline of Africa's apes, Nature says

A recent study warns of a dramatic decline in western equatorial Africa's great ape populations, with gorillas and chimpanzees facing nearly 60% decline since 1983. The research highlights the urgent need for aggressive investments in Ebola prevention, law enforcement, and protected area management to ensure their survival.

SourceWildlife Conservation Society·JournalNature·DateApr 6, 2003

Wild ape population undergoing 'catastrophic' decline

A study published in Nature reveals that wild chimpanzee and gorilla populations have declined by over 50% in the past few decades, with an estimated 80% decline expected within 30 years. The researchers attribute this to illegal hunting and Ebola outbreaks, highlighting the need for improved anti-poaching laws and Ebola research.

SourcePrinceton University·JournalNature·DateApr 6, 2003

The structure behind the switch

USC researchers have discovered the molecular mechanism behind immunoglobulin class switching, which enables antibodies to adapt to different areas of the body. The study reveals that an R-loop forms between the DNA and RNA strands, creating a stable bond that determines the cut point for DNA splicing.

SourceUniversity of Southern California·JournalNature Immunology·DateApr 6, 2003