[Preparation, identification, and analysis on tissue chips of polyclonal anti-peptide antibody to chemokine-like factor 1].

Zhongguo Yi Xue Ke Xue Yuan Xue Bao

Department of Immunology of Basic Medical Sciences College, Center for Human Disease Genomics, Peking University, Beijing 100083, China.

Published: October 2004

AI Article Synopsis

  • The study aimed to create a polyclonal anti-peptide antibody against CKLF1 and utilize it for examining CKLF1 expression and function.
  • The researchers selected a 16 amino acid sequence from the C-terminal end of CKLF1 and immunized rabbits with this peptide to generate the antibody.
  • Results showed that the antibody effectively recognized CKLF1 in various tissues and had significant staining differences between normal and cancerous rectal tissues, indicating its potential as a tool for CKLF1 detection.

Article Abstract

Objective: To prepare the polyclonal anti-peptide antibody against chemokine-like factor1 (CKLF1) and apply it to the expression and functional studies of CKLF1.

Methods: CKLF1 was analyzed with bioinformatics methods. The 16 amino acids sequence peptide was selected from CKLF1 C terminal end. Antibody was raised by immunizing rabbits with the peptide conjugated to keyhole limpet hemocyanin (KLH).

Results: A high titer polycolonal antibody was obtained from the rabbit against the peptide. ELISA analysis proved that the titer of rabbit serum against anti-peptide of CKLF1 was up to 10(-4). Western blot analysis revealed that it could react not only with recombinant CKLF1 expressed in a cell-Free Protein Biosynthesis System and Drosophila S2 cells, but also recognize the endogenous CKLFs in the tissue array. Positive staining was detected in the normal bronchial cartilage, gastric mucosa, and gastric smooth muscle tissues. Normal rectum and well-differentiated rectal carcinoma showed strong positive staining, but the poor-differentiated rectal carcinoma samples revealed negative staining.

Conclusion: The anti-peptide antibody can specifically recognize CKLFs and may be a useful reagent for the detection of CKLF1.

Download full-text PDF

Source

Publication Analysis

Top Keywords

anti-peptide antibody
12
polyclonal anti-peptide
8
antibody chemokine-like
8
positive staining
8
rectal carcinoma
8
cklf1
6
antibody
5
[preparation identification
4
identification analysis
4
analysis tissue
4

Similar Publications

Purpose: Schistosomiasis remains a parasitic disease affecting millions of people worldwide, requiring interventions like vaccination. In previous work, our group used reverse vaccinology to identify two epitopes from the Schistosoma mansoni proteins, Sm050890 (44-58) and Sm141290 (225-239). This study evaluated the immune response profile and protection induced by peptides, as a mixture of immunogens, in murine vaccination trials.

View Article and Find Full Text PDF
Article Synopsis
  • The study aims to find predictors for how well rheumatoid arthritis patients respond to the drug tofacitinib, using a method called phage immunoprecipitation sequencing (PhIP-Seq) to identify relevant biomarkers.
  • A total of 106 patients were involved, with testing to determine therapeutic response and antibody levels for validation, leading to the identification of anti-SNRK and anti-HUWE1 antibodies as potential predictors of positive treatment outcomes.
  • Results showed that anti-SNRK antibody levels were especially significant in predicting good responses and decreased in patients who responded well to treatment, marking them as key biomarkers for future therapeutic strategies.
View Article and Find Full Text PDF

Expression of the receptor for IgM (FcμR) by bovine neutrophils.

Dev Comp Immunol

November 2024

ISP, INRAE, Université de Tours, Nouzilly, France. Electronic address:

Bovine neutrophils possess a particular set of receptors for immunoglobulins. They have been shown to express a distinctive receptor for IgG, and it has long been known that they interact poorly with IgG but that they can use IgM antibodies as opsonins. We show that the binding of labeled IgM was inhibited by unlabeled IgM but not by IgA, suggesting that bovine neutrophils express a specific IgM receptor.

View Article and Find Full Text PDF

Targeted proteomics enables sensitive and specific quantification of proteins and post-translational modifications. By coupling peptide immunoaffinity enrichment with targeted mass spectrometry, we have developed the methodology for multiplexed quantification of proteins and phosphosites involved in the RAS/MAPK signaling network. The method uses anti-peptide antibodies to enrich analytes and heavy stable isotope-labeled internal standards, spiked in at known concentrations.

View Article and Find Full Text PDF

Objective: Anti-histidyl-transfer RNA synthetase (Jo-1) antibodies are associated with myositis as well as different extramuscular organ complications comprising the anti-synthetase syndrome. This study aimed to clarify the relationship between anti-Jo-1 epitope recognition patterns and specific clinical features of this syndrome.

Methods: B cell epitope mapping was performed via enzyme-linked immunosorbent assay in 180 patients who were anti-Jo-1 antibody-positive using overlapping peptides/protein fragments spanning the amino-terminal 151 amino acids of Jo-1 as substrate antigens.

View Article and Find Full Text PDF

Want 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!