ABSTRACT
Procalcionin ( PCT) is a soluble protein liberated into the circulation of patients in response to severe systemic in-fection, in particular by bacterial infection.It is used as the most accurate biomarker for the diagnosis of sepsis.This review briefly de-scribes the induction of PCT, the comparison of PCT and other markers of sepsis, the application of PCT measurement in confirmation or exclusion of diagnosis of sepsis, the assessment of severity and treatment effectiveness of systemic infection, the application of PCT in guiding individual and specific treatment of antibiotics, and the anormaly situation of elevated levels of PCT in patients who do not have sepsis.
ABSTRACT
<p><b>OBJECTIVE</b>To explore the effects of aberrant expression of sperm protein 17 (Sp17) on the migration of the ovarian cancer cell line HO-8910.</p><p><b>METHODS</b>The recombinant plasmid pEGFP-Sp17 containing Sp17 and enhanced green fluorescent protein gene was transfected into the human ovarian cancer cell line HO-8910 with Lipofectamine 2000. The expression of Sp17 was examined by RT-PCR and Western blot, and the cell migratory capability detected by Transwell chamber assays.</p><p><b>RESULTS</b>Sp17 was expressed as a fusion protein with EGFP after transfected. There was a significant difference in the migratory cell number of the transfected and the control cells (156.6 +/- 14.9/HP vs 39.3 +/- 8.53/HP, P < 0.05).</p><p><b>CONCLUSION</b>The aberrant expression of Sp17 greatly enhances the migration of ovarian cancer cells.</p>
Subject(s)
Female , Humans , Male , Antigens, Neoplasm , Genetics , Antigens, Surface , Genetics , Biomarkers, Tumor , Genetics , Carrier Proteins , Genetics , Cell Line, Tumor , Cell Movement , Gene Expression Regulation, Neoplastic , Ovarian Neoplasms , Metabolism , Pathology , TransfectionABSTRACT
<p><b>OBJECTIVE</b>To test anti-Sp17 antibodies in the serum of AsAb positive infertile patients, to investigate the proportion of anti-Spl7 antibodies in AsAb and their potential application to the serologic diagnosis of immune infertility and immunocontraception.</p><p><b>METHODS</b>With human recombinant Sp17 as the antigen, the ELISA method was used to detect the positive rate, antibody titre and content of anti-Sp17 antibodies in the AsAb positive serum.</p><p><b>RESULTS</b>The positive rate of anti-Sp17 antibodies in the AsAb positive serum was 56.5%, with no significant difference in the gender aspect. The percentage of anti-Sp17 antibodies in AsAb was (10.09 +/-7.45) %, with statistical significance (P <0.05).</p><p><b>CONCLUSION</b>Sp17 is an important sperm antigen. Anti-Sp17 antibodies in the serum can be taken as auxiliary diagnostic index of infertility, and Sp17 is shown to be a potential candidate immunocontraception vaccine.</p>
Subject(s)
Adult , Female , Humans , Male , Antigens, Surface , Allergy and Immunology , Autoantibodies , Blood , Carrier Proteins , Allergy and Immunology , Contraception, Immunologic , Infertility, Male , Blood , Allergy and Immunology , Spermatozoa , Allergy and ImmunologyABSTRACT
<p><b>OBJECTIVE</b>To develop a method of radioimmunoassay for human sperm protein 17(Sp17) determination.</p><p><b>METHODS</b>Anti-recombinant human Sp17 antibody was prepared, the labeling of 125I-rhSp17 performed by chloramine T method, and radioimmunoassay of Sp17 developed.</p><p><b>RESULTS</b>The assay range was 3.3 to approximately 800 microg/L, the sensitivity was 2.0 microg/L, and the intra- and inter-assay coefficients of variation (CV) were 7.5% to approximately 9.8% and 8.2% to approximately 13.2%, respectively. The serum Sp17 level in normal subjects was (15.60 +/- 7.66) microg/L (n = 59).</p><p><b>CONCLUSION</b>This radioimmunoassay of Sp17 fulfills the reasonable requirements of clinical routine and scientific studies in terms of specificity, sensitivity and practicability. Measurement of Sp17 concentration is useful for assessing its native distribution and aberrant expression.</p>