Measurement of the CD3-4+ variant T cell frequency by flow cytometry after X-irradiation on mice

Naoki Kunugita, Nan Mei, Satoshi Nomoto, Toshiyuki Norimura

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Variant cell frequency of mice T-lymphocytes defective in the T-cell receptor (TCR) gene expression was measured by flow cytometry. Splenic T-lymphocytes were obtained from mice after irradiation and stained with fluorescein-labeled anti-L 3 T 4 (CD 4) and phycoerythrin-labeled anti-CD3-ε antibodies. They were analyzed with a flow cytometer to detect variant T cells lacking surface expression of TCR/CD 3 complexes which showed CD3-4+ T cells. Variant T cells could be observed 3 days after 3 Gy irradiation. Frequency of variant T cells increased to the maximum level of 94×10-4 between 15 and 21 days after 3 Gy irradiation on BALB/c mice and gradually decreased with a half-life of approximately 17 days. We examined the strain difference in radiosensitivity of splenic T-lymphocytes in BALB/c, C57BL/6, C3H/ He and B6C3F1 mouse strains by this assay method. We observed that BALB/c showed the most radiosensitivity. This assay method is quick and easy in comparison with other methods and is considered useful for the mutagenicity test.

Original languageEnglish
Pages (from-to)25-29
Number of pages5
JournalJournal of Occupational Health
Volume38
Issue number1
DOIs
Publication statusPublished - Jan 1 1996

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Flow Cytometry
T-Lymphocytes
Radiation Tolerance
Phycoerythrin
Mutagenicity Tests
T-Cell Receptor Genes
T-Cell Antigen Receptor
Fluorescein
Half-Life
Anti-Idiotypic Antibodies
Gene Expression

All Science Journal Classification (ASJC) codes

  • Public Health, Environmental and Occupational Health

Cite this

Measurement of the CD3-4+ variant T cell frequency by flow cytometry after X-irradiation on mice. / Kunugita, Naoki; Mei, Nan; Nomoto, Satoshi; Norimura, Toshiyuki.

In: Journal of Occupational Health, Vol. 38, No. 1, 01.01.1996, p. 25-29.

Research output: Contribution to journalArticle

Kunugita, Naoki ; Mei, Nan ; Nomoto, Satoshi ; Norimura, Toshiyuki. / Measurement of the CD3-4+ variant T cell frequency by flow cytometry after X-irradiation on mice. In: Journal of Occupational Health. 1996 ; Vol. 38, No. 1. pp. 25-29.
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