Proliferation News and Research

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Researchers discover cell receptor for CDT toxin of C. difficile bacterium

A research group led by Freiburg pharmacologist Prof. Dr. Klaus Aktories and their American colleagues have discovered the cell receptor for the toxin CDT of the bacterium Clostridium difficile.

27 Sep 2011

Afinitor Phase III study on angiomyolipomas associated with TSC meets primary endpoint

A Phase III study of Afinitor (everolimus) tablets in patients with non-cancerous kidney tumors, or angiomyolipomas, associated with tuberous sclerosis complex (TSC) met its primary endpoint of best overall angiomyolipoma response rate, which includes reduction in kidney tumor size and absence of new tumors.

26 Sep 2011

Adeno-associated virus type 2 kills human breast cancer cells in lab

A nondisease-causing virus kills human breast cancer cells in the laboratory, creating opportunities for potential new cancer therapies, according to Penn State College of Medicine researchers who tested the virus on three different breast cancer types that represent the multiple stages of breast cancer development.

23 Sep 2011

Low levels of vitamin D associated with poorer lung function in children with STRA

Children with severe therapy-resistant asthma (STRA) may have poorer lung function and worse symptoms compared to children with moderate asthma, due to lower levels of vitamin D in their blood, according to researchers in London.

23 Sep 2011

Two IGB faculty members recognized as University Scholars

Paul Kenis and James Slauch have been named as University Scholars, a program created to recognize the university's most talented teachers, scholars and researchers.

21 Sep 2011

Scientists discover crucial connection in skin formation

Skin is the body's armor, protecting us from disease agents, injury, excessive water loss, and cold and heat. Yet mutations in a single gene, the gene for the protein p63, cause numerous diseases and malformations of the uppermost layer of skin - the epidermis - and other tissues. In the epidermis, these range from skin cancers to dysplasias that cause cracking, bleeding, infection, and discoloration.

21 Sep 2011

Introduction of free caesarean sections in Congo leads to increase in procedure

"A health policy shift that saw the introduction in May of free caesarean section operations in 35 hospitals across the Republic of Congo -- to curb the growing rate of maternal and infant mortality -- seems to have prompted a proliferation of such operations, according to health officials," IRIN reports.

20 Sep 2011

FoxM1 protein plays a critical role in development of medulloblastomas

Medulloblastomas constitute the most frequent class of malignant childhood brain tumor. Tumors of this type arise due to the uncontrolled proliferation of immature nerve cells in the developing brain, and there is no targeted treatment available.

20 Sep 2011

UNC-45A protein plays critical role in breast cancer cell division and migration

Researchers have found that a protein linked to cell division and migration and tied to increased cell proliferation in ovarian tumors is also present at high levels in breast cancer specimens and cell lines. The protein, dubbed "UNC-45A," was also determined to be more active in breast cancer cells than in normal breast cells.

16 Sep 2011

Researchers identify promising new therapies for ependymoma

Researchers have identified promising new therapies for ependymoma, a rare tumor with few treatment options. St. Jude Children's Research Hospital investigators led the effort, which used a new, faster drug development system that combines the latest drug screening technology with the first accurate animal model of the tumor.

16 Sep 2011

Scientists decode new mechanism that regulates cell polarity in epithelial tissues, neurons

In the course of examining the Drosophila tumor suppressor gene (Dlg), scientists at the Helmholtz Zentrum München have succeeded in decoding a new mechanism that regulates cell polarity in epithelial tissues or in neurons in the brain.

14 Sep 2011

Scientists uncover new ways to stimulate pancreatic beta cell growth

One of the holy grails in diabetes research is to discover molecules that stimulate beta cell growth and to find drugs that target these molecules. Now, JDRF-funded researchers in collaboration with the pharmaceutical company Hoffmann-La Roche, have done both, discovering not only a protein that regulates beta cell growth, but also a chemical compound that stimulates it.

7 Sep 2011

Researchers reveal mechanism behind how cells communicate

Cell communication is essential for the development of any organism. Scientists know that cells have the power to "talk" to one another, sending signals through their membranes in order to "discuss" what kind of cell they will ultimately become - whether a neuron or a hair, bone, or muscle. And because cells continuously multiply, it's easy to imagine a cacophony of communication.

6 Sep 2011

Researchers discover group of mutations involved in T-cell acute lymphoblastic leukemia

An international team of researchers has found a group of mutations involved in T-cell acute lymphoblastic leukemia (T-ALL), and showed that a group of certain drugs, already in clinical use to treat other diseases, can eliminate the cells carrying these mutations.

5 Sep 2011

Scientists identify human colon stem cells and grow them in lab-plates

Human colon stem cells have been identified and grown in a lab-plate for the first time. This achievement, made by researchers of the Colorectal Cancer Lab at the Institute for Research in Biomedicine and published in Nature Medicine, is a crucial advance towards regenerative medicine.

5 Sep 2011

Researchers discover mechanism of low-dose LDN on cell proliferative-related disorders

Researchers at The Pennsylvania State University College of Medicine, Hershey, Pennsylvania have discovered the mechanism by which a low dose of the opioid antagonist naltrexone (LDN), an agent used clinically to treat cancer and autoimmune diseases, exerts a profound inhibitory effect on cell proliferation.

3 Sep 2011

Researchers inject cultured red blood cells created from HSCs into human donor

For the first time, researchers have successfully injected cultured red blood cells (cRBCs) created from human hematopoietic stem cells (HSCs) into a human donor, according to study results published today in Blood, the Journal of the American Society of Hematology.

3 Sep 2011

Study: Growth hormone helps regenerate damaged hair cells in zebrafish ear

Loud noise, especially repeated loud noise, is known to cause irreversible damage to the hair cells inside the cochlea and eventually lead to deafness. In mammals this is irreversible, however both birds and fish are able to re-grow the damaged hair cells and restore hearing.

3 Sep 2011

Mayo Clinic and IC-MedTech enter collaborative research agreement with Summa Health System

Researchers from the Mayo Clinic and representatives from IC-MedTech signed a collaborative research agreement with Summa Health System to study the usage of Apatone, a proprietary combination of Vitamin-C and Vitamin-K3.

2 Sep 2011

Dendritic cells play central role in regulation of acetaminophen's toxicity

NYU School of Medicine researchers have discovered that dendritic cells in the liver have a protective role against the toxicity of acetaminophen, the widely used over-the-counter pain reliever and fever reducer for adults and children.

2 Sep 2011