Science news articles about 'colon tumor'

  • Common bacteria cause some colon tumors by altering peroxide-producing gene

    ... gut pathogen Bacteroides fragilis causes colon inflammation and increases activity of a gene called ... substance found in many medicine cabinets -- and cause DNA damage, contributing to the formation of colon tumors, say the scientists ...
  • Discovery of a novel mechanism for the development of colon cancer

    ... of Helsinki, Finland, has shed light on the mechanisms of colon tumor development and may help to design better ... a mechanism by which harmless colon polyps acquire the ability to form malignant tumors. Researchers from the University ...
  • What identifies cancer cells causing relapse and metastasis? Not CD133

    ... of cells within a colon cancer that are thought to be able to give rise to a new tumor and that therefore ... . Analysis of human and spontaneous mouse primary colon tumors indicated that CD133 was expressed by most cells ...
  • JCI table of contents: May 22, 2008

    ... . Analysis of human and spontaneous mouse primary colon tumors indicated that CD133 was expressed by most cells ... CD133+ and CD133– metastatic colon cancer cells initiate tumors AUTHOR CONTACT: Shahin ...
  • Team identifies new cancer stem cell driving metastatic tumors

    ... of cancer stem cells that initiate metastatic colon tumors is significantly different from those responsible for primary tumors, according to new research from a team at Weill Cornell Medical ...
  • Weill Cornell team identifies new cancer stem cell driving metastatic tumors

    ... of cancer stem cells that initiate metastatic colon tumors is significantly different from those responsible for primary ... Cornell. "We examined human primary colon tumors, and we also induced colon cancer in CD133 transgenic ...
  • Primary tumors can drive the growth of distant cancers

    ... also drove the growth of implanted fragments of human colon tumors, a finding that they said shows the generality of the physiologic ... to foster the growth of a human colon tumor surgical specimen underscores the powers of systemic instigation ...
  • Also in the July 29 JNCI

    ... , and colleagues injected mice with tumors derived from mouse breast and colon cancers with attenuated FasL ... was substantially inhibited in mice with either breast or colon tumors and lung metastases were reduced in the mice ...
  • Researchers find cancer-inhibiting compound under the sea

    ... of certain HDACs has been associated with several cancers such as prostate and colon tumors, and inhibiting HDACs can activate ... to study whether largazole reduces or prevents tumor growth in mice. Luesch has several other antitumor ...
  • Cancer-inhibiting Compound Found Under The Sea

    ... called histone deacetylase. Overactivity of certain HDACs has been associated with several cancers such as prostate and colon tumors, and inhibiting HDACs may activate ...
  • Scientists identify novel inhibitor of human microRNA

    ... , that is implicated in brain cancer, as well as lung, colon, breast, and ovarian cancer. With further development ... the inhibitor's effectiveness against brain, breast, and colon tumors, and they are working to modify the molecule to make ...
  • Cold Spring Harbor Laboratory scientists trace a novel way cells are disrupted in cancer

    ... that changes the instructions for how other proteins are assembled--can induce tumors in cell cultures. The team's newly published ... as SF2/ASF was elevated in more than 20% of lung and colon tumors. Moreover, laboratory cultures of mouse ...
  • Study helps clarify role of vitamin D in cancer therapy

    ... the Wnt/b-catenin pathway, which is overactive in most colon tumors. The net result is to curb division ... of spreading. To delve into the mechanism, the team dosed colon cancer cells with calcitriol, the metabolically active ...
  • Researchers map new path to colon cancer therapy

    ... ," Rychahou said. "Akt2 is essential for the later stages of colon tumor metastasis, but we also found that increased Akt2 alone ... stimulation and activation which can occur with absence of PTEN in these tumors." Discoveries such as these, according to Evers, are "crucial to providing more directed ...
  • Gene switch sites found mainly on 'shores,' not just 'islands' of the human genome

    ... for new methylated areas in colon tumors as well as normal colon tissue removed from 13 ... , healthy cells. However, comparing the tumor and healthy colon cells' entire genomes, including ... they're not at all supposed to be like," Feinberg says. "For example, colon cells that become cancerous might start ...

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