Oncogene News and Research

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An oncogene is a gene that, when mutated or expressed at high levels, helps turn a normal cell into a tumor cell.

Researchers discover CD19 pathway that leads to lymphoma

Researchers studying the molecular signals that drive a specific type of lymphoma have discovered a key biological pathway leading to this type of cancer. Cancerous cells have been described as being "addicted" to certain oncogenes (cancer-causing genes), and the new research may lay the groundwork for breaking that addiction and effectively treating aggressive types of B cell lymphoma.

8 May 2012

MicroRNAs in breast cancer play a role in development of resistance to tamoxifen

Many breast cancer patients are treated with a drug called tamoxifen. The substance blocks the effect of estrogen and thus suppresses the growth signals of this hormone in cancer cells. When resistance to the drug develops, tumor cells change their growth program: They change their behavior and shape, become more mobile and also adopt the ability to invade surrounding tissue. Scientists working with PD (Associate Professor) Dr. Stefan Wiemann of the German Cancer Research Center (DKFZ) have now also observed these changes in tamoxifen resistant breast cancer cells.

5 May 2012

Trovagene completes PCR assay development for detection of K-RAS mutations

Trovagene, Inc., a developer of trans-renal molecular diagnostics, announced today that the Company has successfully completed the analytical development of digital PCR assays for the detection of the most prevalent K-RAS mutations, which are, according to recent estimates, observed in more than 90% of pancreatic cancers, and in 23% of all solid tumors.

30 Apr 2012

Kras gene triggers metabolic changes that fuel cancer cells

Researchers at Dana-Farber Cancer Institute have shown that advanced pancreatic cancers in mice can't survive without continued expression of a mutant oncogene that "rewires" key metabolic pathways to fuel the cancer cells.

27 Apr 2012

Combination of Velcade and Fasudil could treat NSCLC

A common cancer drug and a drug used for a rare condition affecting the heart could together treat an aggressive form of lung cancer called non-small cell lung cancer (NSCLC), according to a study published in Cell today.

27 Apr 2012

CML and B-ALL arise from the long-term haematopoietic stem cells

Although people generally talk about "cancer", it is clear that the disease occurs in a bewildering variety of forms. Even single groups of cancers, such as those of the white blood cells, may show widely differing properties. How do the various cancers arise and what factors determine their progression? Clues to these two issues, at least for leukaemias, have now been provided by Boris Kovacic and colleagues at the University of Veterinary Medicine, Vienna.

25 Apr 2012

NSCLC patients with EGFR mutations benefit from erlotinib-first regimen

Patients with advanced non-small cell lung cancer should only receive treatment with the drug erlotinib before receiving standard chemotherapy if their tumor is known to harbor EGFR mutations, researchers report at the 3rd European Lung Cancer Conference in Geneva, Switzerland.

19 Apr 2012

Breast cancer cells that metastasize to the lung express higher level of PRDX2

Researchers from the Bellvitge Biomedical Research Institute (IDIBELL) have shown that breast cancer cells that metastasize to the lung express a higher level of the protein peroxiredoxin 2 (PRDX2). The study suggests that the modulation of the levels of this protein could be a new therapeutic strategy to prevent lung metastases.

11 Apr 2012

Study assesses link between antifolate medications, KRAS mutations and amplification

Testing patients with non-small cell lung cancer for both mutations and amplifications of the KRAS gene prior to therapy may help to predict response to treatment with antifolates, according to the updated results of a preclinical study presented at the AACR Annual Meeting 2012, held here March 31 - April 4.

5 Apr 2012

New cell and animal model of IBC

Inflammatory breast cancer (IBC) is a very aggressive, often misunderstood type of cancer that is diagnosed more frequently in younger women compared with other types of breast cancer. The five-year survival rate is between 25 and 50 percent-significantly lower than the survival rate for other types of breast cancer. The reason for the poor prognosis is that IBC usually grows rapidly and often spreads quickly to other parts of the body, including the brain, bone and lymph nodes.

5 Apr 2012

Reactivation of p53 may be a highly selective treatment modality for virally-induced lymphoma

Kaposi's sarcoma herpesvirus (KSHV) is a human tumor virus and an etiological agent for Kaposi's sarcoma and primary effusion lymphoma (PEL). PELs are aggressive lymphomas with reported median survival time shorter than six months after diagnosis.

4 Apr 2012

Blocking PRC2 protein may help protect against AML

Scientists at Cold Spring Harbor Laboratory have identified a candidate drug target for treating acute myeloid leukemia, a white blood cell cancer that proliferates out of control in the bone marrow.

2 Apr 2012

New project to focus on role of Myc oncoproteins in B-cell lymphoma

The National Institutes of Health has awarded The Scripps Research Institute $2 million to study the role of a pathway in the development and maintenance of B-cell lymphoma, a type of cancer that begins in immune system and turns normal disease fighting cells into cancers. The disease affects immune cells known as lymphocytes, which are part of our white blood cells.

31 Mar 2012

Study: Some breast cancer tumours may not respond to taxane chemotherapy

Some breast cancer tumours may be resistant to a common chemotherapy treatment, suggests recent medical research at the University of Alberta.

28 Mar 2012

Scientists identify new compound that quickly kills HCC cells

Scientists have identified a new compound that rapidly kills hepatocellular carcinoma (HCC) cells, the most common form of liver cancer and fifth most common cancer worldwide, while sparing healthy tissue.

15 Mar 2012

Researchers make significant strides in the study of Intrahepatic Cholangiocarcinoma

Researchers at the University of Rochester Medical Center's James P. Wilmot Cancer Center have made significant strides in the study of a primary cancer of the liver- Intrahepatic Cholangiocarcinoma (IHCC), also called biliary tract cancer.

8 Mar 2012

Metastatic melanoma patients with specific genetic mutation benefit from vemurafenib

A report published this week in the New England Journal of Medicine shows that the 50 percent of metastatic melanoma patients with a specific genetic mutation benefit from the drug Vemurafenib - increasing median survival from about 6 months to 15.9 months. In patients who responded, the drug stopped cancer progression for a median 6.7 months.

1 Mar 2012

Targeting patient's own dendritic cells may help restore the immune system

Aggressive ovarian tumors begin as malignant cells kept in check by the immune system until, suddenly and unpredictably, they explode into metastatic cancer. New findings from scientists at The Wistar Institute demonstrate that ovarian tumors don't necessarily break "free" of the immune system, rather dendritic cells of the immune system seem to actively support the tumor's escape.

20 Feb 2012

Study details how breast tumors may flip TGF-beta signalling switch

Signals can tell cells to act cancerous, surviving, growing and reproducing out of control. And signals can also tell cells with cancerous characteristics to stop growing or to die. In breast cancer, one tricky signal called TGF-beta does both - sometimes promoting tumors and sometimes suppressing them.

17 Feb 2012

Pyromaker can rapidly sequence cancer-driving mutations

Using precise information about an individual's genetic makeup is becoming increasingly routine for developing tailored treatments for breast, lung, colon and other cancers. But techniques used to identify meaningful gene mutations depend on analyzing sequences of both normal and mutant DNA in tumor samples, a process that can yield ambiguous results. Now, a team of Johns Hopkins researchers says it has developed an easy-to-use online computer software application that can clear up any confusion faster and cheaper than other methods currently used to do the job.

16 Feb 2012