Recovery of T-cell functions in aged mice injected with synthetic thymosin-α1

Daniela Frasca, Mauro Garavini, Gino Doria

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Injection of immunodeficient, aged mice with synthetic thymosin-α1, a 28 amino acid residues peptide, before carrier priming enhances helper activity. Helper activity was titrated in vitro by adding graded numbers of HRBC-primed spleen cells from aging mice to cultures containing a constant number of spleen cells from 3-month-old normal mice and TNP-HRBC. The in vitro anti-TNP response is enhanced if the aging mice are injected with microgram quantities of α1 before carrier priming. As suggested by the shape of the titration curves α1 appears to increase T cell-T cell cooperation involved in the generation of helper cell activity. The in vitro proliferative response of lymph node cells from OVA-primed aging mice is also restored by injection of α1. Thus, T-cell functions which are markedly reduced in senescence can be efficiently repaired by injection of synthetic thymosin-α1.

Original languageEnglish
Pages (from-to)384-391
Number of pages8
JournalCellular Immunology
Volume72
Issue number2
DOIs
StatePublished - Sep 15 1982
Externally publishedYes

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Thymosin
T-Lymphocytes
Injections
Spleen
Cell Aging
Helper-Inducer T-Lymphocytes
Cell Count
Lymph Nodes
Amino Acids
Peptides
In Vitro Techniques

ASJC Scopus subject areas

  • Cell Biology
  • Immunology

Cite this

Recovery of T-cell functions in aged mice injected with synthetic thymosin-α1. / Frasca, Daniela; Garavini, Mauro; Doria, Gino.

In: Cellular Immunology, Vol. 72, No. 2, 15.09.1982, p. 384-391.

Research output: Contribution to journalArticle

Frasca, Daniela ; Garavini, Mauro ; Doria, Gino. / Recovery of T-cell functions in aged mice injected with synthetic thymosin-α1. In: Cellular Immunology. 1982 ; Vol. 72, No. 2. pp. 384-391.
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