Toxoplasmosis causes serious complications in immunocompromised and pregnant women. Serological tests for the detection of toxoplasmosis are often designed from parasitic tachyzoites antigens. The process of producing these antigens is very difficult. The purpose of this study was evaluation of T. gondii-rGRA5 for the immunodiagnosis and molecular detection of Toxoplasma infection using enzyme-linked immunosorbent assay (ELISA) and LAMP methods in hemodialysis patients. The GRA5 gene was successfully expressed and purified by affinity chromatography assay and evaluated by western blot. Then it was used to design an ELISA assay. A total of 260 samples were tested for anti-Toxoplasma IgG and IgM antibodies using a commercial ELISA kit and designed ELISA kit. Finally, the LAMP method was used to evaluate the precision and reliability of the results obtained by commercial and designed ELISA kits. The consistency of the results of two methods was analyzed using the Kappa coefficient of agreement. The rGRA5 revealed higher immunoreactivity with 1:100 dilution of sera from toxoplasmosis patients. The specificity and sensitivity of the assay were 93% and 96%, respectively. According to the Kappa coefficient, there was a substantial correlation between the results of ELISA and LAMP based on rGRA5 (≈98%, p < 0.001). Also it showed that rGRA5 protein can be used as an antigenic protein for designing sero-diagnostic tests to identify Toxoplasma infection especially in hemodialysis patients.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/sdi.12981 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Understanding the impact of spatial immunophenotypes on the survival of endometrial cancer patients through the ProMisE classification.
Cancer Immunol Immunother
January 2025
Department of Obstetrics and Gynecology, Graduate School of Medicine, Nagoya University, 65, Tsurumai-Cho, Showa-Ku, Nagoya, Aichi, 466-8560, Japan.
Objectives: We focused on how the immunophenotypes based on the distribution of CD8-positive tumor-infiltrating lymphocytes (TILs) relate to the endometrial cancer (EC) molecular subtypes and patients' prognosis.
Patients And Methods: Two cohorts of EC patients (total n = 145) were analyzed and categorized using the Molecular Risk Classifier for Endometrial cancer (ProMisE): POLEmut (POLE mutation), MMRd (mismatch repair deficiency), NSMP (no specific molecular profile), and p53abn (p53 abnormality). CD8-positive TILs, within the central tumor and the invasive margin, were examined by using immunohistochemical staining and advanced image-analysis software.
Recognition of Self and Viral Ligands by NK Cell Receptors.
Immunol Rev
January 2025
W. M. Keck Laboratory for Structural Biology, University of Maryland Institute for Bioscience and Biotechnology Research, Rockville, Maryland, USA.
Natural killer (NK) cells are essential elements of the innate immune response against tumors and viral infections. NK cell activation is governed by NK cell receptors that recognize both cellular (self) and viral (non-self) ligands, including MHC, MHC-related, and non-MHC molecules. These diverse receptors belong to two distinct structural families, the C-type lectin superfamily and the immunoglobulin superfamily.
View Article and Find Full Text PDFImmune correlates of early clearance of Mycobacterium tuberculosis among tuberculosis household contacts in Indonesia.
Nat Commun
January 2025
Department of Internal Medicine and Radboud Community for Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, the Netherlands.
Some individuals, even when heavily exposed to an infectious tuberculosis patient, do not develop a specific T-cell response as measured by interferon-gamma release assay (IGRA). This could be explained by an IFN-γ-independent adaptive immune response, or an effective innate host response clearing Mycobacterium tuberculosis (Mtb) without adaptive immunity. In heavily exposed Indonesian tuberculosis household contacts (n = 1347), a persistently IGRA negative status was associated with presence of a BCG scar, and - especially among those with a BCG scar - with altered innate immune cells dynamics, higher heterologous (Escherichia coli-induced) proinflammatory cytokine production, and higher inflammatory proteins in the IGRA mitogen tube.
View Article and Find Full Text PDFATLAS-seq: a microfluidic single-cell TCR screen for antigen-reactive TCRs.
Nat Commun
January 2025
Raymond G. Perelman Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Discovering antigen-reactive T cell receptors (TCRs) is central to developing effective engineered T cell immunotherapies. However, the conventional technologies for isolating antigen-reactive TCRs (i.e.
View Article and Find Full Text PDFAssessing the Predictive Power of PIRCHE-II Scores for the Development of Donor-Specific Antibodies After Simultaneous Pancreas-Kidney Transplantation.
Transpl Int
January 2025
Department of Nephrology, University Hospital Zurich, Zurich, Switzerland.
The molecular HLA epitope mismatch is an advanced measure for developing donor-specific antibodies (dnDSA) after kidney transplantation. Its relevance in simultaneous pancreas/kidney transplant recipients (SPKTRs) remains unclear. We investigated dnDSA development in 72 SPKTRs and 383 kidney transplant recipients (KTRs) and used the Predicted Indirectly Recognizable HLA-Epitopes (PIRCHE-II) algorithm to calculate the mismatch load of HLA-derived epitopes in total, per HLA-class, and per HLA-locus.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!