Detection of soluble integrin in human serum

  • Bank I
  • Weiss P
  • Doolman R
 et al. 
  • 2

    Readers

    Mendeley users who have this article in their library.
  • 5

    Citations

    Citations of this article.

Abstract

An enzyme-linked immunosorbent assay (ELISA) for the detection and quantitation of soluble α1β1 integrins (sα1) in human serum samples was developed. Solid phase-bound anti-α1 integrin monoclonal antibody (mAb) TS2/7 was used to capture sα1, and mAb 1B3.1 was used to detect the immobilized integrin. An extract of human placenta (PE) containing 340 ng/mL of VLA-1 molecules served as a positive control, and serum samples from normal donors and patients were assayed. Optimal binding of anti-α1 integrin mAb 1B3.1, expressed as specific optical density (OD), was obtained when a 5 μg/mL solution of anti-α1 integrin 'capture' mAb TS2/7 was immobilized to the wells and the PE was added. Solutions of albumin or collagen, in contrast, did not result in binding, confirming the specificity of the assay for sα1. Furthermore, the specific OD of the wells correlated directly with the concentration of PE. A concentration of sα1 above that of a 1:100 dilution of PE-that is, >3.4 ng/mL of integrin, in which the intra-assay correlation of variance was

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Ilan Bank

  • Peretz Weiss

  • Ram Doolman

  • Mazal Book

  • Ben Ami Sela

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free