0000000000125570

AUTHOR

Rolf Bräuer

showing 2 related works from this author

Synovial giant cells in rheumatoid arthritis: Expression of cystatin C, but not of cathepsin B

2000

This study was designed to investigate the expression of the matrix degrading proteinase cathepsin B and its endogenous inhibitor cystatin C in rheumatoid arthritis (RA) with special regard to multinucleated synovial giant cells (SGC). We applied an immunohistochemical double-labeling technique. SGC strongly expressed cystatin C and CD68, but were negative for cathepsin B. This staining pattern occurred in osteoclasts as well. Our findings support the idea that in RA matrix destruction by cathepsin B is not mediated by SGC or osteoclasts, but by mononuclear synoviocytes.

inorganic chemicalsPathologymedicine.medical_specialtyArthritisCysteine Proteinase InhibitorsToxicologyGiant CellsCathepsin BCathepsin BPathology and Forensic MedicineArthritis RheumatoidOsteoclastCathepsin L1Synovial FluidmedicineHumansCystatin CCathepsinHyperplasiabiologyCell BiologyGeneral Medicinemedicine.diseaseCystatinsImmunohistochemistryMolecular biologymedicine.anatomical_structureCystatin Ccardiovascular systembiology.proteinCystatinSynovial membraneExperimental and Toxicologic Pathology
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Expression of LFA-1 (CD11a/CD18) and ICAM-1 (CD54) in an animal model of renal interstitial fibrosis induced by unilateral ureteral obstruction

2000

Unilateral ureteral obstruction (UUO) has been used as an experimental model to induce tubulointerstitial damage and interstitial fibrosis. UUO is characterized by cellular proliferation, accumulation of inflammatory cells, and subsequent replacement of renal parenchyma by fibrous tissue. The influx of inflammatory cells into the renal interstitium is mediated by adhesion molecules. In this study, the development of fibrosis in the UUO model of the rat was examined and its relation to the time course of LFA-1 and ICAM-1 expression was assessed by immunohistochemistry. An increase in interstitial connective tissue was detected on day 10 after UUO, with a maximum on day 35. After unilateral u…

MalePathologymedicine.medical_specialtyConnective tissueCD18Kidneyurologic and male genital diseasesToxicologyPathology and Forensic MedicineRats Sprague-DawleyFibrosisAnimalsMedicineLigationHydronephrosisKidneyurogenital systembusiness.industryCell BiologyGeneral MedicineIntercellular Adhesion Molecule-1medicine.diseaseFibrosisLymphocyte Function-Associated Antigen-1female genital diseases and pregnancy complicationsRatsDisease Models Animalmedicine.anatomical_structureCD18 AntigensNephritis InterstitialImmunohistochemistryUreterbusinessNephritisUreteral ObstructionKidney diseaseExperimental and Toxicologic Pathology
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