Co-localisation of matrix metalloproteinasae-1 and mast cell tryptase in human uterus

S. A. Milne, A. Rakhyoot, T. A. Drudy, Susan Brechin, S. C. Riley, H. O. D. Critchely

    Research output: Contribution to journalArticle

    20 Citations (Scopus)

    Abstract

    The endometrium displays characteristic cyclical changes involving proliferation and differentiation, The differentiation that takes place requires major tissue remodelling involving the matrix metalloproteinase (MMP) family as key enzymes in this process. Mast cells, containing the tryptase and chymase enzymes that are capable of stimulating the MMP cascade, have been identified in the endometrium, but their role is still unclear. In this study, we observed that the majority of mast cells in the uterus reside in the myometrium and that they co-express mast cell tryptase and MMP-1 in the same intracellular granules, In endometrium exposed to synthetic progestogen via an intrauterine levonorgestrel system a significant increase in mast cells numbers was observed in women experiencing breakthrough bleeding compared to those in women with no reported bleeding. We conclude that mast cells contain MMP-1 and we postulate a potential role for mast cells in breakthrough bleeding.

    Original languageEnglish
    Pages (from-to)559-565
    Number of pages6
    JournalMolecular Human Reproduction
    Volume7
    Issue number6
    DOIs
    Publication statusPublished - 2001

    Keywords

    • endometrium
    • levonorgestrel-IUS mast cells
    • matrix metalloproteinase
    • myometrium
    • uterus
    • HUMAN ENDOMETRIUM
    • TISSUE INHIBITORS
    • MENSTRUAL-CYCLE
    • INTRAUTERINE LEVONORGESTREL
    • PROGESTERONE WITHDRAWAL
    • INTERSTITIAL CYSTITIS
    • SMOOTH-MUSCLE
    • GELATINASE-B
    • EXPRESSION
    • DECIDUALIZATION

    Cite this

    Co-localisation of matrix metalloproteinasae-1 and mast cell tryptase in human uterus. / Milne, S. A.; Rakhyoot, A.; Drudy, T. A.; Brechin, Susan; Riley, S. C.; Critchely, H. O. D.

    In: Molecular Human Reproduction, Vol. 7, No. 6, 2001, p. 559-565.

    Research output: Contribution to journalArticle

    Milne, S. A. ; Rakhyoot, A. ; Drudy, T. A. ; Brechin, Susan ; Riley, S. C. ; Critchely, H. O. D. / Co-localisation of matrix metalloproteinasae-1 and mast cell tryptase in human uterus. In: Molecular Human Reproduction. 2001 ; Vol. 7, No. 6. pp. 559-565.
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    AU - Milne, S. A.

    AU - Rakhyoot, A.

    AU - Drudy, T. A.

    AU - Brechin, Susan

    AU - Riley, S. C.

    AU - Critchely, H. O. D.

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    AB - The endometrium displays characteristic cyclical changes involving proliferation and differentiation, The differentiation that takes place requires major tissue remodelling involving the matrix metalloproteinase (MMP) family as key enzymes in this process. Mast cells, containing the tryptase and chymase enzymes that are capable of stimulating the MMP cascade, have been identified in the endometrium, but their role is still unclear. In this study, we observed that the majority of mast cells in the uterus reside in the myometrium and that they co-express mast cell tryptase and MMP-1 in the same intracellular granules, In endometrium exposed to synthetic progestogen via an intrauterine levonorgestrel system a significant increase in mast cells numbers was observed in women experiencing breakthrough bleeding compared to those in women with no reported bleeding. We conclude that mast cells contain MMP-1 and we postulate a potential role for mast cells in breakthrough bleeding.

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    KW - INTERSTITIAL CYSTITIS

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