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Posts Tagged ‘chromosome’


How Chromosomes Keep Their Loose Ends Loose Has Implications For Cancer And The Aging Process

We take it for granted that our chromosomes won’t stick together, yet this kind of cellular disaster would happen constantly were it not for a protein called TRF2. Now, scientists at The Scripps Research Institute (TSRI) have discovered key details of how TRF2 performs this crucial chromosome-protecting function…

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Scientists discover how chromosomes keep their loose ends loose

We take it for granted that our chromosomes won’t stick together, yet this kind of cellular disaster would happen constantly were it not for a protein called TRF2. Now, scientists have discovered key details of how TRF2 performs this crucial chromosome-protecting function. The finding represents a significant advance in cell biology and also has implications for our understanding of cancer and the aging process.

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Dr. Cortes Discusses the Use of Ponatinib in Types of Leukemia

Jorge E. Cortes, MD, Department of Leukemia, University of Texas, MD Anderson Cancer Center, discusses the use of ponatinib in several types of leukemia. Currently, ponatinib is being analyzed in a phase II trial in patients with chronic myeloid leukemia (CML) or Philadelphia chromosome-positive acute lymphoblastic leukemia (ALL). Cortes says ponatinib will be looked at in CML patients who have failed only one prior therapy and in acute myeloid leukemia. For more resources visit: targetedhc.com

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Options increase for chronic myeloid leukemia (CML) patients failed by existing drugs

The U.S. Food and Drug Administration (FDA) this month expanded the options for patients with chronic myeloid leukemia and one form of acute lymphoblastic leukemia that carries the Philadelphia chromosome (Ph+ALL). It approved the drug ponatinib (Iclusig), which is effective in a significant number of patients with either disease.

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Drug Approved To Treat Rare Forms Of Leukemia

A new drug used to treat patients with chronic myeloid leukemia (CML) and Philadelphia chromosome positive acute leukemia (Ph+ ALL) has just received approval from the U.S. Food and Drug Administration…

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Profiles in Cancer Research: Dr. Titia de Lange: Telomere Function and Cancer

When Titia de Lange was about 16 years old and living in Holland, she saw an electron microscope image of a chromosome in a Dutch newspaper that changed her life.

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Structure Of Enzyme Unravelled Providing Basis For More Accurate Design Of Chemotherapeutic Drugs

A group of researchers at the University of California, Berkeley have for the first time described the structure of the active site core of topoisomerase II alpha, an important target for anti-cancer drugs. The type II topoisomerases are important enzymes that are involved in maintaining the structure of DNA and chromosome segregation during both replication and transcription of DNA…

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Structure of enzyme topoisomerase II alpha unravelled providing basis for more accurate design of chemotherapeutic drugs

Medical researchers have for the first time described the structure of the active site core of topoisomerase II alpha, an important target for anti-cancer drugs. The type II topoisomerases are important enzymes that are involved in maintaining the structure of DNA and chromosome segregation during both replication and transcription of DNA. One of these enzymes, topoisomerase II alpha, is involved in the replication of DNA and cell proliferation, and is highly expressed in rapidly dividing cancer cells.

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CU researchers discover a new approach to curing cancer

The researchers collaborated to find a patch of amino acids that, if blocked by a drug docked onto the chromosome end of that location, could prevent cancerous cells from reproducing.

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Chronic myelogenous leukemia

CML is the rapid growth of immature cells that make a certain type of white blood cell. Such cells are found in the bone marrow, blood, and other body tissues. CML most often occurs in middle-aged adults and in children. It is usually associated with an abnormal chromosome called the Philadelphia chromosome. Radiation exposure can increase your risk of developing CML. You may be exposed to radiation from: Radiation treatments used in the past to treat thyroid cancer or Hodgkin’s lymphoma Nuclear disaster It takes many years to develop leukemia from radiation exposure. Most people treated for cancer with radiation do not develop leukemia. Most patients with CML have not been exposed to radiation. Symptoms Chronic myelogenous leukemia is grouped into several phases: Chronic Accelerated Blast crisis The chronic phase can last for months or years. The disease may have few or no symptoms during this time. Most people are diagnosed during this stage, when they are having blood tests done for other reasons. The accelerated phase is a more dangerous phase. Leukemia cells grow more quickly. Common symptoms include fever (without infection), bone pain, and a swollen spleen. Untreated CML leads to the blast crisis phase. Bleeding and infection may occur due to bone marrow failure. Other possible symptoms of a blast crisis include: Bruising Excessive sweating (night sweats) Fatigue Fever Pressure under the lower left ribs from a swollen spleen Rash – small pinpoint red marks on the …

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