Related Experiment Videos
A circulating thyroid peroxidase-like substance in healthy human peripheral blood
1Central Laboratory of Clinical Investigation, Miyazaki Medical College Hospital, Japan.
Endocrinologia Japonica
|December 1, 1988
Summary
Thyroid peroxidase (TPO)-like substance is detectable in healthy human blood. This finding suggests lymphocytes may encounter TPO and thyroglobulin in circulation, offering insights into TPO's immunological role.
Area of Science:
- Immunology
- Endocrinology
- Biochemistry
Background:
- Thyroid peroxidase (TPO) is crucial for thyroid hormone synthesis.
- The presence and immunological role of circulating TPO in healthy individuals remain unclear.
Purpose of the Study:
- To investigate the presence of TPO-like substance in healthy human peripheral blood.
- To elucidate the potential immunological significance of circulating TPO.
Main Methods:
- Utilized a highly sensitive radioimmunoassay system.
- Employed murine monoclonal antibodies for detection.
- Characterized the substance using gel filtration chromatography.
Main Results:
- A TPO-like substance was measurable in 6 out of 84 healthy sera.
- Gel filtration indicated a major peak with a molecular weight similar to trypsinized TPO.
- Suggests low-level exposure of peripheral lymphocytes to TPO and thyroglobulin.
Conclusions:
- A circulating TPO-like substance exists at low levels in healthy humans.
- Peripheral blood lymphocytes may be exposed to circulating TPO and thyroglobulin.
- Further research is warranted to define the immunological role of circulating TPO.