Arginine deprivation, growth inhibition and tumour cell death: 3. Deficient utilisation of citrulline by malignant cells

Denis Wheatley, E. Campbell

    Research output: Contribution to journalArticle

    35 Citations (Scopus)

    Abstract

    Arginine deprivation causes death of up to 80% of cancer cell lines in vitro, but in the body, citrulline would be available as a convertible source of this amino acid in vivo. Some tumour cell lines, notably the vast majority of melanomas and hepatocellular carcinomas, tend to be deficient in argininosuccinate synthetase (EC 6.5.4.3.), and therefore cannot recycle citrulline to arginine. Argininosuccinate synthetase is present at levels that convert enough citrulline to arginine to allow limited growth in about half of a modest range of malignant cell types analysed in this study. Attempts to rescue cells that are unable to utilise citrulline with the immediate downstream product, argininosuccinate, had very limited success in a few tumour cell lines. Particularly noteworthy is the demonstration that argininosuccinate was totally incapable of rescuing cells that utilise citrulline efficiently, consistent with tight channelling (coupling) of argininosuccinate synthetase and argininosuccinate lyase in the urea cycle. The findings suggest that an excellent opportunity exists for further exploitation of arginine deprivation in the selective killing of tumour cells.

    Original languageEnglish
    Pages (from-to)573-576
    Number of pages3
    JournalBritish Journal of Cancer
    Volume89
    Issue number3
    DOIs
    Publication statusPublished - 2003

    Keywords

    • citrulline
    • metabolism
    • deficiency
    • arginine deprivation
    • melanoma
    • METABOLISM
    • CULTURES
    • ARGINASE
    • LINES

    Cite this

    Arginine deprivation, growth inhibition and tumour cell death: 3. Deficient utilisation of citrulline by malignant cells. / Wheatley, Denis; Campbell, E.

    In: British Journal of Cancer, Vol. 89, No. 3, 2003, p. 573-576.

    Research output: Contribution to journalArticle

    @article{0b2474afd78e477087332a3f0fb12bb7,
    title = "Arginine deprivation, growth inhibition and tumour cell death: 3. Deficient utilisation of citrulline by malignant cells",
    abstract = "Arginine deprivation causes death of up to 80{\%} of cancer cell lines in vitro, but in the body, citrulline would be available as a convertible source of this amino acid in vivo. Some tumour cell lines, notably the vast majority of melanomas and hepatocellular carcinomas, tend to be deficient in argininosuccinate synthetase (EC 6.5.4.3.), and therefore cannot recycle citrulline to arginine. Argininosuccinate synthetase is present at levels that convert enough citrulline to arginine to allow limited growth in about half of a modest range of malignant cell types analysed in this study. Attempts to rescue cells that are unable to utilise citrulline with the immediate downstream product, argininosuccinate, had very limited success in a few tumour cell lines. Particularly noteworthy is the demonstration that argininosuccinate was totally incapable of rescuing cells that utilise citrulline efficiently, consistent with tight channelling (coupling) of argininosuccinate synthetase and argininosuccinate lyase in the urea cycle. The findings suggest that an excellent opportunity exists for further exploitation of arginine deprivation in the selective killing of tumour cells.",
    keywords = "citrulline, metabolism, deficiency, arginine deprivation, melanoma, METABOLISM, CULTURES, ARGINASE, LINES",
    author = "Denis Wheatley and E. Campbell",
    year = "2003",
    doi = "10.1038/sj.bjc.6601134",
    language = "English",
    volume = "89",
    pages = "573--576",
    journal = "British Journal of Cancer",
    issn = "0007-0920",
    publisher = "Nature Publishing Group",
    number = "3",

    }

    TY - JOUR

    T1 - Arginine deprivation, growth inhibition and tumour cell death: 3. Deficient utilisation of citrulline by malignant cells

    AU - Wheatley, Denis

    AU - Campbell, E.

    PY - 2003

    Y1 - 2003

    N2 - Arginine deprivation causes death of up to 80% of cancer cell lines in vitro, but in the body, citrulline would be available as a convertible source of this amino acid in vivo. Some tumour cell lines, notably the vast majority of melanomas and hepatocellular carcinomas, tend to be deficient in argininosuccinate synthetase (EC 6.5.4.3.), and therefore cannot recycle citrulline to arginine. Argininosuccinate synthetase is present at levels that convert enough citrulline to arginine to allow limited growth in about half of a modest range of malignant cell types analysed in this study. Attempts to rescue cells that are unable to utilise citrulline with the immediate downstream product, argininosuccinate, had very limited success in a few tumour cell lines. Particularly noteworthy is the demonstration that argininosuccinate was totally incapable of rescuing cells that utilise citrulline efficiently, consistent with tight channelling (coupling) of argininosuccinate synthetase and argininosuccinate lyase in the urea cycle. The findings suggest that an excellent opportunity exists for further exploitation of arginine deprivation in the selective killing of tumour cells.

    AB - Arginine deprivation causes death of up to 80% of cancer cell lines in vitro, but in the body, citrulline would be available as a convertible source of this amino acid in vivo. Some tumour cell lines, notably the vast majority of melanomas and hepatocellular carcinomas, tend to be deficient in argininosuccinate synthetase (EC 6.5.4.3.), and therefore cannot recycle citrulline to arginine. Argininosuccinate synthetase is present at levels that convert enough citrulline to arginine to allow limited growth in about half of a modest range of malignant cell types analysed in this study. Attempts to rescue cells that are unable to utilise citrulline with the immediate downstream product, argininosuccinate, had very limited success in a few tumour cell lines. Particularly noteworthy is the demonstration that argininosuccinate was totally incapable of rescuing cells that utilise citrulline efficiently, consistent with tight channelling (coupling) of argininosuccinate synthetase and argininosuccinate lyase in the urea cycle. The findings suggest that an excellent opportunity exists for further exploitation of arginine deprivation in the selective killing of tumour cells.

    KW - citrulline

    KW - metabolism

    KW - deficiency

    KW - arginine deprivation

    KW - melanoma

    KW - METABOLISM

    KW - CULTURES

    KW - ARGINASE

    KW - LINES

    U2 - 10.1038/sj.bjc.6601134

    DO - 10.1038/sj.bjc.6601134

    M3 - Article

    VL - 89

    SP - 573

    EP - 576

    JO - British Journal of Cancer

    JF - British Journal of Cancer

    SN - 0007-0920

    IS - 3

    ER -