PMID- 16968233 OWN - NLM STAT- MEDLINE DCOM- 20070126 LR - 20171116 IS - 0904-2512 (Print) IS - 0904-2512 (Linking) VI - 35 IP - 9 DP - 2006 Oct TI - Matrix metalloproteinase-7, -8, -9, -25, and -26 and CD43, -45, and -68 cell-markers in HIV-infected patients' saliva and gingival tissue. PG - 530-9 AB - BACKGROUND: Matrix metalloproteinases (MMPs) process the extracellular matrix and act in tissue remodelling in many physiological and pathological conditions. Certain MMPs can also exert protective anti-inflammatory properties. The levels and expression of MMPs and tissue inhibitors of MMPs (TIMPs) in saliva and gingival tissues of human immunodeficiency virus-seropositive (HIV+) patients are unclear. METHODS: Enzyme-linked immunosorbent assay methods and Western blots were used to study levels and molecular forms of MMP-7, -8, -9, -25, and -26 and TIMP-1 from salivary samples of HIV+ patients (n = 55) and healthy controls (n = 10). The expression of MMPs was also studied by immunohistochemical means in gingival tissue specimens (n = 11, HIV+ patients; n = 10, healthy controls). RESULTS: The HIV+ patients' MMP-8 levels in saliva were statistically significantly higher only in the acquired immunodeficiency syndrome (AIDS)-phase. MMP-9 levels in ASX- and AIDS-phases showed increased expression. TIMP-1 levels were significantly decreased in lymphadenopathy syndrome (LAS)- and AIDS-related complex (ARC)-phases, while MMP-8/TIMP-1 and MMP-9/TIMP-1 molar ratios were increased in all phases in comparison with controls. The molecular forms of MMP-7, -25, and -26 were different between patients and controls as assessed by Western blot. Immunohistochemical studies showed slightly enhanced MMP-7, -8, -9, -25, and -26 staining in HIV+ gingival tissue samples in comparison with controls. CONCLUSIONS: This study confirmed and further demonstrated differences in salivary amounts and molecular forms of MMPs and TIMP-1 in HIV+ patients. The results may reflect alterations in host defence reactions associated with HIV infection. FAU - Mellanen, Liisa AU - Mellanen L AD - Institute of Dentistry, University of Helsinki, Helsinki, Finland. mellanen@helsinki.fi FAU - Lahdevirta, Juhani AU - Lahdevirta J FAU - Tervahartiala, Taina AU - Tervahartiala T FAU - Meurman, Jukka H AU - Meurman JH FAU - Sorsa, Timo AU - Sorsa T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Denmark TA - J Oral Pathol Med JT - Journal of oral pathology & medicine : official publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology JID - 8911934 RN - 0 (Antigens, CD) RN - 0 (Antigens, Differentiation, Myelomonocytic) RN - 0 (CD68 antigen, human) RN - 0 (Leukosialin) RN - 0 (Tissue Inhibitor of Metalloproteinases) RN - EC 3.1.3.48 (Leukocyte Common Antigens) RN - EC 3.4.24.- (Matrix Metalloproteinases) SB - IM MH - Adult MH - Animals MH - Antigens, CD/*analysis MH - Antigens, Differentiation, Myelomonocytic/analysis MH - Case-Control Studies MH - Female MH - Gingiva/*chemistry/immunology MH - HIV Infections/*immunology MH - Horses MH - Humans MH - Leukocyte Common Antigens/analysis MH - Leukosialin/analysis MH - Male MH - Matrix Metalloproteinases/*analysis MH - Mice MH - Saliva/*chemistry/immunology MH - Tissue Inhibitor of Metalloproteinases/analysis EDAT- 2006/09/14 09:00 MHDA- 2007/01/27 09:00 CRDT- 2006/09/14 09:00 PHST- 2006/09/14 09:00 [pubmed] PHST- 2007/01/27 09:00 [medline] PHST- 2006/09/14 09:00 [entrez] AID - JOP449 [pii] AID - 10.1111/j.1600-0714.2006.00449.x [doi] PST - ppublish SO - J Oral Pathol Med. 2006 Oct;35(9):530-9. doi: 10.1111/j.1600-0714.2006.00449.x.