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Article citations


You, H.J., Woo, C.H., Choi, E.Y., et al. (2005) Roles of Rac and p38 Kinase in the Activation of Cytosolic Phospholipase A2 in Response to PMA. Biochemical Journal, 388, 527-535.

has been cited by the following article:

  • TITLE: Proinflammatory Pathways Engaged by Oral Pathogen Porphyromonas gingivalis in Upregulation of Matrix Metalloproteinase-9 Expression in Periodontal Disease

    AUTHORS: Bronislaw L. Slomiany, Amalia Slomiany

    KEYWORDS: P. gingivalis, Periodontal Disease, Inflammatory Response, LPS, TLR4, MMP-9

    JOURNAL NAME: Journal of Biosciences and Medicines, Vol.6 No.6, June 25, 2018

    ABSTRACT: Matrix metalloproteinase-9 (MMP-9) is a potent endopeptidase implicated in a wide range of inflammatory and neoplastic diseases, including chronic periodontitis, a persistent oral mucosal inflammation attributed primarily to infection by P. gingivalis. Here, we review the signaling pathways engaged by P. gingivalis in controlling the processing and secretion of MMP-9. The induction in oral mucosal expression of MMP-9 by P. gingivalis relays primarily on its key endotoxin, LPS, engagement of TLR4 and the activation of MAPK, ERK and p38 cascades implicated in the stimulation of Rac1 and cPLA2. The ERK-mediated cPLA2 phosphorylation plays an essential role in its membrane translocation with Rac1, while p38 localization with Rac1 promotes cPLA2 activation and the induction in MMP-9. Moreover, the induction in MMP-9 secretion by the LPS and the modulatory influence of peptide hormone, ghrelin, occur at the level of MMP-9 processing between ER and Golgi, with the involvement of factors that control secretory cargo sorting, Arf1 GTPase and PKD2. The secretion of MMP-9, furthermore, occurs in concert with the changes in stability dynamics of microtubules (MTs), which affect the Golgi localization of Arf1 and the recruitment and activation of PKD2. The induction in MMP-9 secretion by LPS is accompanied by the enhancement in MT stabilization and α-tubulin phosphorylation on Ser, while the MT destabilization associated with the modulatory influence of ghrelin, is manifested by α-tubulin phosphorylation on Tyr. Thus, the factors capable of affecting MT dynamics and MMP-9 secretion present a tempting target for the therapeutic intervention in the treatment of chronic periodontitis.