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SCI-BYTES - WHAT'S NEW IN RESEARCH : 2008

Week of August 17, 2008 < Back ¦ 2008 ¦ Home

 
Hot Paper in Biology

"In vitro reprogramming of fibroblasts into a pluripotent ES-cell-like state," by Marius Wernig and 7 others,
Nature, 448(7151): 318-24, 19 July 2007.

Paste paper here.  the source below is for all whats hot in papers

[Authors' affiliations: Whitehead Institute, MIT, Cambridge, MA; Massachusetts General Hospital, Boston; Broad Institute, Boston; Harvard Medical School, Boston]

Abstract: "Nuclear transplantation can reprogramme a somatic genome back into an embryonic epigenetic state, and the reprogrammed nucleus can create a cloned animal or produce pluripotent embryonic stem cells. One potential use of the nuclear cloning approach is the derivation of 'customized' embryonic stem (ES) cells for patient-specific cell treatment, but technical and ethical considerations impede the therapeutic application of this technology. Reprogramming of fibroblasts to a pluripotent state can be induced in vitro through ectopic expression of the four transcription factors Oct4 (also called Oct3/4 or Pou5f1), Sox2, c-Myc and Klf4. Here we show that DNA methylation, gene expression and chromatin state of such induced reprogrammed stem cells are similar to those of ES cells. Notably, the cells--derived from mouse
fibroblasts--can form viable chimaeras, can contribute to the germ line and can generate live late-term embryos when injected into tetraploid blastocysts. Our results show that the biological potency and epigenetic state of in-vitro-reprogrammed induced pluripotent stem cells are indistinguishable from those of ES cells."

This 2007 report from Nature was cited 40 times in current journal articles indexed by Thomson Reuters during March-April 2008. With this latest two-month total, the report currently stands as the third-most-cited biology paper (aside from reviews) published in the last two years. Prior to the most recent bimonthly count, citations to the paper have accrued as follows:

January-February 2008: 40 citations
November-December 2007: 20
September-October 2007: 8
July-August 2007: 1

Total citations to date: 109


SOURCE: Hot Papers Database (Included with a subscription to the print newsletter Science Watch®, available from the Research Services Group of Thomson Reuters. Packaged on a CD that is mailed with each Science Watch issue, the Hot Papers Database contains data on hundreds of highly cited papers published during the last two years. User interface permits searching by author, organization, journal, field, and more. Total citations, as well as citations accrued during successive bimonthly periods, can be assessed and graphed. An updated CD containing the most recent bimonthly data is mailed with every new issue of Science Watch, six times a year. The CD also includes an electronic version of the Science Watch issue in HTML format, for personal desktop access.

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