Category Archives: Cancer Knowledge

Hedgehog signaling pathway for breast cancer identified — ScienceDaily

Scientists at The University of Texas MD Anderson Cancer Center report that hedgehog, a unique cell signaling pathway known to contribute to many types of cancer, may be behind breast cancer metastasis. This molecular message service works with the lncRNA known as BCAR4 giving the genetic green light for tumor growth. “Our study of BCAR4 and the hedgehog signaling pathway has provided evidence for lncRNAs’ regulator roles in aggressive breast cancers progression,” said Liuqing Yang, Ph.D., assistant professor of molecular and cellular oncology, whose findings are published in this month’s issue of Cell…

Cheap malaria drug could treat colorectal cancer effectively too, say experts

A pilot study by researchers at St George’s, University of London, has found the drug artesunate, which is a widely used anti-malaria medicine, had a promising effect on reducing the multiplication of tumour cells in colorectal cancer patients who were already going to have their cancer surgically removed. Colorectal cancer (CRC) makes up about 10 percent of the annual 746,000 global cancer cases in men and 614,000 cases in women. …

Need to encourage patients to screen for colon cancer? Try a lottery

Patients who were told they had a 1-in-10 chance of winning $50 were more likely to complete home stool blood tests that help screen for colon cancer, according to a new study led by a researcher at the VA Ann Arbor Healthcare System and University of Michigan. The findings appear in a special issue of Annals of Internal Medicine…

New approach to fighting chronic myeloid leukemia

Abl-kinase and leukemia Abl-kinase can turn “on” molecules that are involved in many cell functions including cell growth. In chronic myeloid leukemia, the chromosome that contains the gene for Abl-kinase swaps a section with another chromosome, causing what is known as the “Philadelphia chromosome.” When this mutation takes place in the blood stem cells in the bone marrow, Abl-kinase fuses with another protein, turning into a deregulated, hyperactive enzyme. This causes large numbers of blood-forming stem cells to grow into an abnormal type of white blood cell, which gives rise to chronic myeloid leukemia. To treat this type of leukemia we use drugs that specifically bind and block a part of Abl-kinase called the “active site.” As the name suggests, this is the part of the enzyme that binds molecules to turn them on. …

Chlamydia knock out body’s own cancer defense

Hundreds of mutations occur every day in almost every cell in our body. The protein p53 is then activated in order to limit these changes in the genome: either the cell repairs the damaged DNA or, if that is not possible, it triggers the cellular suicide program. In this way, cells are normally protected against the development of cancer. As the Berlin-based team at the Max Planck Institute for Infection Biology reported last year, chlamydial infections lead to a drastic increase in the mutation rate. …

Metabolic ‘reprogramming’ by p53 gene family leads to tumor regression

The University of Texas MD Anderson Cancer Center investigation showed that, in vivo, the genes p63 and p73 can be manipulated to upregulate or increase levels of IAPP, a protein important for the body’s ability to metabolize glucose. IAPP is found in some diabetes drugs already on the market. The research findings were published in today’s issue of Nature. …

TNF inhibitors may increase cancer risk in the eye, researchers report

Mayo researchers studied three patients — two women and a man — who were treated for inflammatory disease and developed melanoma tumors in one eye within a year to two of taking TNF inhibitors. While this type of condition is probably rare, according to the researchers, there might be an increased risk if the patient has a pre-existing nevus (freckle of the eye). …