Proliferation News and Research

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A single cancer stem cell is sufficient to initiate and maintain a malignant tumor

At the heart of most, if not all cancers, lie a handful of wayward stem cells that feed the ever growing tumor mass, but their scarcity make it difficult for scientists to study them. Now, times of plenty may lie ahead as a breast cancer cell line , established long ago , turned out to behave a lot like cancer stem cells.

14 Jun 2007

New contributor to aggressive cancers

Mutations in the cell adhesion molecule known as integrin alpha 7 (integrin 7) lead to unchecked tumor cell proliferation and a significantly higher incidence in cancer spread, or metastasis, in several cancer cell lines, report researchers at the University of Pittsburgh School of Medicine in a study published in the Journal of the National Cancer Institute.

8 Jun 2007

Researchers shed light on congenital diaphragmatic hernia

The diaphragm, a shelf of muscle that separates the chest cavity from the abdominal cavity, is critical to sustaining life.

8 Jun 2007

miRNAs shown to be a critical force behind the anti-proliferation potential of p53

Cold Spring Harbor Laboratory (CSHL) researchers led by Lin He, Xingyue He, and Professor and Howard Hughes Medical Investigator (HHMI) Greg Hannon have identified a family of micro RNAs (miRNAs) that enable a critical tumor suppressor network, called the p53 pathway, to fight cancer growth.

8 Jun 2007

Blocking the action of beta1-integrin to treat cancer

Targeting the function of a protein known as beta1-integrin might represent a novel approach to cancer treatment, according to a paper published online in the EMBO Journal.

8 Jun 2007

Predicting treatment responses earlier for brain tumor patients

Using metabolic or molecular imaging to measure brain tumor patients' response to treatment is a powerful predictor of survival, notes a first-of-its-kind study presented at the 54th Annual Meeting of SNM, the world's largest society for molecular imaging and nuclear medicine professionals.

5 Jun 2007

Scientists have captured on video the intracellular version of a postal delivery service

Reporting in the journal Biochemical and Biophysical Research Communications (BBRC), bioengineering researchers at UC San Diego published videos of a key message-carrying protein called paxillin moving abruptly from hubs of communication and transportation activity on the cell surface toward the nucleus.

3 Jun 2007

Device to treat brain cancer shows promise

New early data showed that an investigational device that specifically targets rapidly growing cancer cells with intermediate frequency electrical fields -- called Tumor-Treating Fields (TTFields) -- more than doubled the median overall survival rates in patients with recurrent glioblastoma multiforme (GBM), the most common and aggressive type of malignant brain tumor.

1 Jun 2007

Gene expression patterns predict rapid decline in idiopathic pulmonary fibrosis patients

Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease typically characterized by the slow but progressive onset of shortness of breath or cough.

1 Jun 2007

Temsirolimus, effective new treatment for advanced renal cell carcinoma

The results of a phase III, randomized clinical study involving patients with advanced renal cell carcinoma and poor prognostic features show temsirolimus improved overall survival when compared to the current treatment for this stage of disease.

1 Jun 2007

Investigational device to treat brain cancer shows promise in early studies

30 May 2007

Detailed portrait of 700 proteins that help maintain DNA integrity

Cells have the remarkable ability to keep track of their genetic contents and -- when things go wrong, to step in and repair the damage before cancer or another life-threatening condition develops.

28 May 2007

Researchers engineer adult stem cells derived from human umbilical cord blood to produce insulin

The researchers announced their laboratory finding, which caps nearly four years of research, in the June 2007 issue of the medical journal Cell Proliferation, posted online this week.

28 May 2007

Link between periodontitis and tongue cancer

Researchers at the University at Buffalo and Roswell Park Cancer Institute have shown for the first time that an association exists between long-standing periodontitis, or gum disease, and risk of tongue cancer.

22 May 2007

Some NSAIDs may be better suited to treating cancer

Until recently, nonsteroidal anti-inflammatory drugs (NSAIDs) like aspirin and celecoxib (sold as Celebrex), were being hailed as promising cancer prevention drugs.

18 May 2007

Health effects of isoflavones and breast cancer

Are soy products healthy additions to a person's diet, safe alternatives to hormone-replacement therapy or cancer-causing agents" The answer, according to University of Illinois food science and human nutrition professor William Helferich, is, "It depends."

17 May 2007

Culture techniques can significantly affect cell growth and function

When it comes to growing cells in a lab, technique matters. A new Brown University study shows that nerve cells grown in three-dimensional cultures use 1,766 genes differently compared to nerve cells grown in standard two-dimensional petri dishes.

17 May 2007

Radically different approach to nuclear magnetic resonance

Detecting the molecular structure of a tiny protein using nuclear magnetic resonance (NMR) currently requires two things: a million-dollar machine the size of a massive SUV, and a large sample of the protein under study.

16 May 2007

Cells that cause Ewing's sarcoma identified

Inserm researchers at the Institut Curie have identified the cells that cause Ewing’s sarcoma.

16 May 2007

Hepatitis C infection is associated with an increased risk of non-Hodgkin lymphoma

Hepatitis C infection is associated with an increased risk of non-Hodgkin lymphoma (malignancy involving lymphatic tissue) of 20 percent to 30 percent, and a three-fold increase in the risk of another type of lymphoma, according to a study in the May 9 issue of JAMA.

9 May 2007