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Cathepsin B and L and stefin A and B levels as serum tumor markers in squamouscell carcinoma of the head and neckStrojan, Primož ...Cysteine proteinases cathepsin (Cath) B and L and their endogenous inhibitors stefin (Stef) A and B concentrations were measured using a quantitative immunosorbent assay (ELISA; KRKA d.d., Novo ... mesto, Slovenia) in serum samples from 35 patients with primary and 7 patients with recurrent squamous cell carcinoma of the head and neck (SCCHN), obtained at diagnosis (Serum no.1) andafter therapy (Serum no. 2), and compared to sera from 30 (Stef B, 90) healthy volunteers. A significantly higher Stef A (P = 0.005) and lower Stef B(P < 0.001) concentrations were measured in patients' Serum no.1 than in controls, and the levels of Caths B and L and Stef A were found to be significantly elevated in Serum no.1 as compared to Serum no. 2 (P = 0.045, P = 0.041 and P = 0.024, respectively). The time of Serum no.2 collection did not influence the concentration of either Caths or Stefs in these samples, andno correlation was observed with the established prognostic factors for anyof the parameters studied. Patients with subsequently diagnosed recurrent disease had a significantly lower Cath L concentration than those without evidence of relapse during follow up (P = 0.05). The risk of disease recurrence and SCCHN-related death correlated significantly with low Cath L serum levels (P = 0.012, P = 0.006). The serum levels of Cath B, Stef A and Stef B did not influence significantly the probability of survival.Source: Neoplasma. - ISSN 0028-2685 (Letn. 48, št. 1, 2001, str. 66-71)Type of material - article, component partPublish date - 2001Language - englishCOBISS.SI-ID - 13305561
Author
Strojan, Primož |
Budihna, Marjan |
Šmid, Alojz, 1941- |
Svetic, Branka |
Vrhovec, Ivan, 1943- |
Škrk, Janez
Topics
Head and neck neoplasms |
Diagnosis |
Pathology |
Carcinoma, squamous cell |
Diagnosis |
Pathology |
Cathepsins |
Cystatins |
Neoplasm recurrence, local |
Cathepsin b |
Prognosis |
Sensitivity and specificity |
Survival analysis
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Strojan, Primož | 14576 |
Budihna, Marjan | 00702 |
Šmid, Alojz, 1941- | 02130 |
Svetic, Branka | 10518 |
Vrhovec, Ivan, 1943- | 07195 |
Škrk, Janez | 00712 |
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