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  1. Article: Human melanoma cells transplanted into zebrafish proliferate, migrate, produce melanin, form masses and stimulate angiogenesis in zebrafish.

    Haldi, Maryann / Ton, Christopher / Seng, Wen Lin / McGrath, Patricia

    Angiogenesis

    2006  Volume 9, Issue 3, Page(s) 139–151

    Abstract: In this research, we optimized parameters for xenotransplanting WM-266-4, a metastatic melanoma cell line, including zebrafish site and stage for transplantation, number of cells, injection method, and zebrafish incubation temperature. Melanoma cells ... ...

    Abstract In this research, we optimized parameters for xenotransplanting WM-266-4, a metastatic melanoma cell line, including zebrafish site and stage for transplantation, number of cells, injection method, and zebrafish incubation temperature. Melanoma cells proliferated, migrated and formed masses in vivo. We transplanted two additional cancer cell lines, SW620, a colorectal cancer cell line, and FG CAS/Crk, a pancreatic cancer cell line and these human cancers also formed masses in zebrafish. We also transplanted CCD-1092Sk, a human fibroblast cell line established from normal foreskin and this cell line migrated, but did not proliferate or form masses. We quantified the number of proliferating melanoma and normal skin fibroblasts by dissociating xenotransplant zebrafish, dispensing an aliquot of CM-DiI labeled human cells from each zebrafish onto a hemocytometer slide and then visually counting the number of fluorescently labeled cancer cells. Since zebrafish are transparent until approximately 30 dpf, the interaction of labeled melanoma cells and zebrafish endothelial cells (EC) can be visualized by whole-mount immunochemical staining. After staining with Phy-V, a mouse anti-zebrafish monoclonal antibody (mAb) that specifically labels activated EC and angioblasts, using immunohistology and 2-photon microscopy, we observed activated zebrafish EC embedded in human melanoma cell masses. The zebrafish model offers a rapid efficient approach for assessing human cancer cells at various stages of tumorigenesis.
    MeSH term(s) Animals ; Cell Movement ; Cell Proliferation ; Humans ; Melanins/metabolism ; Melanoma/blood supply ; Melanoma/pathology ; Models, Biological ; Neoplasm Transplantation ; Neovascularization, Pathologic/pathology ; Skin Neoplasms/blood supply ; Skin Neoplasms/pathology ; Tumor Cells, Cultured ; Zebrafish/embryology
    Chemical Substances Melanins
    Language English
    Publishing date 2006
    Publishing country Germany
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 1484717-6
    ISSN 0969-6970
    ISSN 0969-6970
    DOI 10.1007/s10456-006-9040-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Insertional mutagenesis in zebrafish rapidly identifies genes essential for early vertebrate development.

    Golling, Gregory / Amsterdam, Adam / Sun, Zhaoxia / Antonelli, Marcelo / Maldonado, Ernesto / Chen, Wenbiao / Burgess, Shawn / Haldi, Maryann / Artzt, Karen / Farrington, Sarah / Lin, Shuh-Yow / Nissen, Robert M / Hopkins, Nancy

    Nature genetics

    2002  Volume 31, Issue 2, Page(s) 135–140

    Abstract: To rapidly identify genes required for early vertebrate development, we are carrying out a large-scale, insertional mutagenesis screen in zebrafish, using mouse retroviral vectors as the mutagen. We will obtain mutations in 450 to 500 different genes-- ... ...

    Abstract To rapidly identify genes required for early vertebrate development, we are carrying out a large-scale, insertional mutagenesis screen in zebrafish, using mouse retroviral vectors as the mutagen. We will obtain mutations in 450 to 500 different genes--roughly 20% of the genes that can be mutated to produce a visible embryonic phenotype in this species--and will clone the majority of the mutated alleles. So far, we have isolated more than 500 insertional mutants. Here we describe the first 75 insertional mutants for which the disrupted genes have been identified. In agreement with chemical mutagenesis screens, approximately one-third of the mutants have developmental defects that affect primarily one or a small number of organs, body shape or swimming behavior; the rest of the mutants show more widespread or pleiotropic abnormalities. Many of the genes we identified have not been previously assigned a biological role in vivo. Roughly 20% of the mutants result from lesions in genes for which the biochemical and cellular function of the proteins they encode cannot be deduced with confidence, if at all, from their predicted amino-acid sequences. All of the genes have either orthologs or clearly related genes in human. These results provide an unbiased view of the genetic construction kit for a vertebrate embryo, reveal the diversity of genes required for vertebrate development and suggest that hundreds of genes of unknown biochemical function essential for vertebrate development have yet to be identified.
    MeSH term(s) Animals ; Cloning, Molecular/methods ; Embryo, Nonmammalian/embryology ; Embryo, Nonmammalian/physiology ; Gene Expression Regulation, Developmental ; Mutagenesis, Insertional/genetics ; Mutation ; Retroviridae/genetics ; Zebrafish/embryology ; Zebrafish/genetics
    Language English
    Publishing date 2002-06
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, P.H.S.
    ZDB-ID 1108734-1
    ISSN 1546-1718 ; 1061-4036
    ISSN (online) 1546-1718
    ISSN 1061-4036
    DOI 10.1038/ng896
    Database MEDical Literature Analysis and Retrieval System OnLINE

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