Cell Biology News and Research

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The ratio of phosphatidylcholine to phosphatidylethanolamine influences membrane integrity and steatohepatitis

An imbalance in the lipid content of the liver appears to trigger the downward spiral that leads some with fatty liver disease to advance to full-blown liver failure, according to a new study in the May Cell Metabolism.

11 May 2006

Scientists detect cancer genes with new algorithm

Researchers at New York University's Courant Institute of Mathematical Sciences have developed a new algorithm that enhances the ability to detect a cancer gene, and have applied their algorithm to map the set of tumor-suppressor genes involved in lung cancer.

10 May 2006

Scientists discover molecular security mechanism for keeping gene mutations in check

Everyone knows mutations - genetic mistakes in DNA, the material of heredity - are bad: The more mutations in the cell's DNA, the higher the risk of cancer developing.

8 May 2006

Alveolar type I cells as diagnostic markers for acute lung injury

Recent work in an Oklahoma State University lab on type I cells in the alveoli has opened up a new field of investigation.

8 May 2006

Researchers figure out how nuclear pores duplicate before cells divide

Researchers have long wondered how nuclear pores - the all-important channels that control the flow of information in and out of a cell's nucleus - double in number to prepare for the split to come when a cell divides. Now, for the first time, scientists at the Salk Institute for Biological Studies watched as new funnel-like pore structures formed from scratch, and inserted themselves into the nuclear membrane.

28 Apr 2006

Discovery brings embryonic stem cell medicine a step closer

A team of scientists announced a critical step on the path of realizing the promise of embryonic stem (ES) cells for medicine. The researchers have discovered unique molecular imprints coupled to DNA in mouse ES cells that help explain the cells' rare ability to form almost any body cell type. These imprints, or "signatures," appear near the master genes that control embryonic development and probably coordinate their activity in the early stages of cell differentiation. Not only do these findings help to unlock the basis for ES cells' seemingly unlimited potential, they also suggest ways to understand why ordinary cells are so limited in their abilities to repair or replace damaged cells.

26 Apr 2006

New method allows heart beat triggers to be viewed and better understood

Researchers have developed unique chemical dyes that have made it possible to see what the naked eye has never seen before: action potentials, or voltage changes, of cardiac cells - including those deep inside the heart, which trigger and determine the pace of heartbeats.

25 Apr 2006

WRN exonuclease structure and molecular mechanism imply an editing role in DNA end processing

A team of scientists from Lawrence Berkeley National Laboratory and the Scripps Research Institute has determined the crystal structure and molecular mechanisms of a key part of WRN, a protein that protects humans from premature aging and cancer.

23 Apr 2006

Genetic switch that links animal growth and cancer

Laboratory discoveries by scientists at two universities may lead to new directions in cancer therapy drugs. The researchers have discovered that a genetic switch involved in growth and development of an animal is the same one used to prevent normal cells from becoming cancerous.

18 Apr 2006

Reversing cell division has implications for the treatment of cancer

A scientist in the United States has apparently found a way to reverse the process of cell division.

13 Apr 2006

Getting to the heart of cardiovascular diseases

A new collaboration covers the spectrum from molecules to therapies. Three research organisations have announced the merging of their expertise to fight cardiovascular diseases, which are among the most common health problems and causes of death in the world.

13 Apr 2006

Research provides clues to obesity's cause

Hot fudge sundaes and french fries aside, new research suggests obesity is due at least in part to an attraction between leptin, the hormone that signals the brain when to stop eating, and a protein more recently associated with heart disease.

13 Apr 2006

Researchers identify critical human cell surface molecule involved in infection by Kaposi's sarcoma herpesvirus

Researchers at the National Institute of Allergy and Infectious Disease (NIAID) have identified a critical human cell surface molecule involved in infection by Kaposi's sarcoma herpesvirus (KSHV), the virus that causes Kaposi's sarcoma and certain forms of lymphoma.

11 Apr 2006