Lymphocyte-differentiating hormone of bursa of fabricius.
Thymus extract promotes T cell differentiation, while bursal extract induces both B and T cell differentiation, with B cells being more responsive at lower doses.
Where it sits
this study against the rest of the thymalin (thymus extract) corpusSummary and findings
The study investigated the induction of early lymphocyte differentiation in fractionated bone marrow cells from newly hatched chickens using thymus and bursal extracts. Thymus extract induced selective T cell differentiation, while bursal extract promoted both B cell and T cell differentiation, with B cell differentiation being greater at lower concentrations. No therapeutic claims are made regarding the extracts.
Abstract
Induction of early lymphocyte differentiation was studied in vitro in fractionated bone marrow cells of newly hatched chickens, with alloantiserums to identify newly differentiated B cells (Bu-1+) and T cells (Th-1+). Thymus extract induced selective T cell differentiation; the activity of the extract corresponds to that of thymopoietin. Bursal extract induced both B cell and T cell differentiation, but at lower concentrations B cell differentiation was always greater. This activity is ascribed to a lymphocyte-differentiating hormone of the bursa of Fabricius, for which the name bursopoietin is suggested.
Background
Not reported in abstract.
Methods
Not reported in abstract.
Results
Not reported in abstract.
Interpretation
Not reported in abstract.
Limitations
The abstract is not available, limiting the ability to assess the study's findings and implications.