Daughter Cell News and Research

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Aussie team discover rare breast stem cell responsible for tissue growth

Australian scientists have discovered the rare stem cell that drives the formation of all breast tissue.

9 Jan 2006

Australian researchers discover stem cell that drives the formation of all breast tissue

Victorian Breast Cancer Research Consortium scientists from The Walter and Eliza Hall Institute, using a mouse model, have discovered the rare stem cell that drives the formation of all breast tissue.

5 Jan 2006

65% of ovarian cancer cells sideline body's defences

Ovarian cancer tumour cells use two separate mechanisms to evade the body’s defensive reaction - and in so doing also elude a newly discovered counteraction from the surrounding tissue.

15 Dec 2005

Importance of telomeres in preserving genome integrity and preventing cancer development

Researchers at the Salk Institute for Biological Studies discovered that cells co-opted the machinery that usually repairs broken strands of DNA to protect the integrity of chromosomes.

7 Dec 2005

Sperm stem cells research provides exciting findings

New experiments that prevented rat sperm stem cells from changing permanently into sperm have brought researchers one step closer to coaxing such cells to behave like embryonic stem cells, capable of growing into many other types of cells in the body.

20 Nov 2005

New genes that regulate longevity

In an effort to understand the molecular mechanisms that control aging, Howard Hughes Medical Institute researchers and their colleagues have now uncovered 10 new genes that regulate longevity in yeast. The studies also suggest a new model for how aging is slowed when caloric intake is restricted.

20 Nov 2005

Sleeping sickness parasite shows how cells divide their insides

Researchers at Yale have brought to light a mechanism that regulates the way an internal organelle, the Golgi apparatus, duplicates as cells prepare to divide, according to a report in Science Express.

7 Nov 2005

Somatic adult stem cell niches - key regulators of stem cell activity in mammary tissue

Researchers at Georgetown's Lombardi Comprehensive Cancer Center have found that the onset of breast cancer may be due to defects in somatic adult stem cell niches that exist long before tumors develop.

4 Oct 2005

New key evidence supports claims that some types of cancer originate with defects in stem cells

Scientists at the European Molecular Biology Laboratory (EMBL) in Heidelberg and the Institute of Biomedical Research of the Parc Científic de Barcelona (IRB-PCB) have now added key evidence to claims that some types of cancer originate with defects in stem cells.

4 Sep 2005

Release of the neurotransmitter GABA halts stem cell production in the brain

Release of the neurotransmitter GABA by adult neuronal precursor cells that develop into neurons limits stem cell proliferation, according to a study at Yale School of Medicine in the September issue of Nature Neuroscience.

1 Sep 2005

Asymmetric cell divisions are essential for skin development

It took almost 10 years for Elaine Fuchs, Ph.D., a Howard Hughes Medical Institute investigator at Rockefeller University, to find a postdoctoral fellow who shared her curiosity for the direction of cell divisions in the skin.

18 Aug 2005

Discovery may lead to new therapies for leukemia

Researchers from the University of Pennsylvania School of Medicine found that a protein called NF-Ya activates several genes known to regulate the development of hematopoietic stem cells (HSC), or blood-producing stem cells, in bone marrow.

2 Aug 2005

NIPA levels act as switch regulating cell division

Cells control mitosis (cell division) by assembling a biochemical switch to block it or by disassembling the switch to trigger it, according to investigators at St. Jude Children's Research Hospital and the Technical University of Munich.

18 Jul 2005

Novel way in which the brain size of developing mammals may be regulated

Howard Hughes Medical Institute researchers have discovered a novel way in which the brain size of developing mammals may be regulated. They have identified a signaling pathway that controls the orientation in which dividing neural progenitor cells are cleaved during development.

14 Jul 2005

Drugs that block the enzyme Odc prevent the onset of cancers

The drug DFMO prevents cancer in laboratory models of lymphoma but fails to kill existing cancerous cells that have lost the ability to self-destruct, according to investigators at St. Jude Children's Research Hospital.

16 May 2005

Abnormal cell division explained

Why do some cancer cells divide not into two, as cells are supposed to do in mitosis, but into three-four new cells that look thoroughly abnormal? This question was raised as early as the 1890s by the German tumor researcher David Hansemann, who could observe the strange mitosis even using the microscopes of his day. Now another David, Lund University researcher David Gisselsson, has found an answer.

28 Apr 2005