Molecular and Cell Biology

Neuron cover

A Unique ON-OFF Switch for the Stress Response

23.02.2012

Brain & Behavior, Molecular and Cell Biology

Both parts of the mechanism – ON and OFF receptors – are encoded in the same gene.

Weizmann Institute Scientists Discover How Cells Brace for Starvation

Weizmann Institute Scientists Discover How Cells Brace for Starvation

22.02.2012

Molecular and Cell Biology, Genetics

Why do cells have two different pump mechanisms for nutrients?

Electron microscope image of an effector cell inserting several appendages through endothelial cell membranes

Hidden Passage

30.01.2012

Cancer, Molecular and Cell Biology, Immunology

Hidden “exit signs” ensure that only certain white blood cells can find them.

Mature oocyte, ready for fertilization; surrounding the oocyte are follicle cells

The X Factor of Ovulation

24.01.2012

Biochemistry, Molecular and Cell Biology, Fertility

What keeps the eggs in the ovary from maturing until the time comes for ovulation?

Cells growing under normal (l) and starvation (c and r) conditions. The green spots indicate an autophagy protein that is normally diffused in the cytoplasm, but is recruited to form autophagosomes in response to stress

One Protein, Two Programs

16.01.2012

Molecular and Cell Biology

A cell’s decision to commit suicide involves an exchange of information between two suicide mechanisms

Non-polarized cell six hours after seeding onto a compliant fibronectin-coated substrate. Yellow shows paxillin, a protein associated with focal adhesions

Touching Ground

16.01.2012

Space & Physics, Molecular and Cell Biology, Chemistry

Sticky cells take their cues from the surface they adhere to

Prof. Jeffrey Gerst and Rachel Kama

Unraveling Batten Disease

05.01.2012

Brain & Behavior, Molecular and Cell Biology, Disease, Drugs & Diagnostics, Genetics

When the CLN3 gene is mutated, molecular traffic patterns are disrupted in the neurons.

The adult stem cell unit: Niches are in red. Cap cells (barbed arrowhead) are tightly associated with germ-line stem cells (outlined). Germ-line stem cells carry a spherical organelle - a fusome - which is asymmetrically localized to the side of the cap cells (arrow). Once the stem cell divides, one daughter cell loses contact with the niche and differentiates (green). The fusome in a differentiating germ cell becomes branched (arrowhead)

Stem Cell Phone Home

18.12.2011

Stem Cells, Molecular and Cell Biology

Nature has an ingenious method for orchestrating stem cell development.

Prof. Irit Sagi, Dr. Dmitry Tworowski, Moran Grossman and Dr. Benjamin Born. Water dymanics

Slow Bonds

14.12.2011

Biochemistry, Molecular and Cell Biology

What happens when water meets protein?

Colony of mouse embryonic stem cells, stained blue and green

Potential for Renewal

07.12.2011

Stem Cells, Molecular and Cell Biology, Genetics

Dr. Jacob Hanna is revealing the secrets of stem cells, including their potential to treat disease

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Top Stories

Staphylococcus bacteria

New Immune Mechanism Revealed in the Cellular Trash

When Proteins Go on Strike

Mouse heart tissue viewed under a microscope

A Broken Heart: Two Types of Scars, Two Paths to Healing

Seeding the Passion

Press Releases

New Immune Mechanism Revealed in the Cellular Trash

A Broken Heart: Two Types of Scars, Two Paths to Healing

Training Future Physician-Scientists: The Weizmann Institute Receives Approval for a New Medical School