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Zoology and wildlife conservation

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Abstracts » Zoology and wildlife conservation

Impaired immunoglobulin gene rearrangement in mice lacking the IL-7 receptor

Article Abstract:

Many dispersed germline V segments must undergo recombination following D-J segment joining to generate the full diversity of antibody heavy-chain genes. The process is reported to be controlled by the alpha-chain of the receptor for interleukin-7, a cytokine stimulating B-cell lymphopoiesis. Ligands of the interleukin-7 receptor provide an extrinsic signal targeting the V-segment recombination in the heavy-chain locus by changing DNA substrate accessibility.

Author: Riddell, Andrew, Venkitaraman, Ashok R., Corcoran, Anne E., Krooshoop
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
Interleukins

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Identification and expansion of human colon-cancer-initiating cells

Article Abstract:

The tumorigenic potential of colon [CD133.sup.+] cell is evaluated by comparing the ability of tumor-derived [CD133.sup.+] and [CD133.sup.-] cells to engraft and give rise to subcutaneous tumors in severe combined immunodeficient (SCID) mice. The analysis has suggested that colorectal cancer is created and propagated by a small number of undifferentiated tumorigenic [CD133.sup.+] cells.

Author: Peschle, Cesare, Ricci-Vitiani, Lucia, Lombardi, Dario G., Pilozzi, Emanuela, Biffoni, Mauro, Todaro, Matilde, De Maria, Ruggero
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2007
Italy, Analysis, Diagnosis, Flow cytometry, Colon cancer, Cell separation

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Aborting the birth of cancer

Article Abstract:

The findings of a study shows that oncogene-driven cell-division cycles trigger DNA damage associated with DNA replication, and this DNA damage raises a barrier to the sustained proliferation of the caner cells. It suggests that for the progression toward full-blown cancer requires the wayward cell to inactivate the mechanisms that monitor damage during DNA replication.

Author: Venkitaraman, Ashok R.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
DNA damage, DNA replication

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Subjects list: Research, Cancer cells
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