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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Kingston, R. Hayday, A. C. Carding, S. R. Jenkinson, E. J. Bottomly, K. Owen, J. J. |
| Description | Author Affiliation: Carding SR ( Section of Immunobiology, Yale University School of Medicine, New Haven, CT 06510.); |
| Abstract | We have used the technique of in situ hybridization to investigate the expression of lymphokine genes by immature thymocytes during intrathymic development. In 13-day fetal thymocytes a population of cells constitutively produces low levels of interleukin 2 (IL-2) and interleukin 4 (IL-4) mRNAs. A second phase of lymphokine gene expression occurs in the majority of 15-day thymocytes, and a population of cells constitutively produces both IL-2 and IL-4 mRNAs. Thymocytes at 14 days of gestation and after 16 days up until birth do not express detectable lymphokine mRNA. By contrast, the population of IL-2 receptor mRNA-producing thymocytes increases progressively up to 15 days of gestation, and expression thereafter decreases up to birth. In addition, thymocytes expressing interferon gamma mRNA were not present until just prior to birth. Our findings indicate developmental control of lymphokine and lymphokine receptor gene expression in fetal thymocytes during ontogeny. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 9 |
| Volume Number | 86 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1989-06-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Gene Expression Regulation Interferon-gamma Genetics Interleukin-2 Interleukins T-Lymphocytes Metabolism Thymus Gland Embryology Animals DNA Probes Gestational Age Interleukin-4 Mice Mice, Inbred CBA Nucleic Acid Hybridization RNA, Messenger Biosynthesis Receptors, Interleukin-2 Cytology Comparative Study Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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