Immunomodulation of TH1 and TH2 cytokine gene expression by IL-12 in allergic mice / by Johnsimon K. Lam.
| Author/creator | Lam, Johnsimon K. author. |
| Other author | Metzger, W. James, degree supervisor. |
| Other author | East Carolina University. Department of Biology. |
| Format | Theses and dissertations |
| Production | 1997. |
| Description | 58 leaves : illustrations ; 28 cm |
| Supplemental Content | Access via ScholarShip |
| Subjects |
| Summary | The effects of timing and route of administration of IL-12 on murine cytokine expression in allergic airway inflammation were investigated. Administration of IL-12 was timed to interfere with either allergic sensitization (early dosage) or the hypersensitivity inflammatory response in the lung (late dosage), or both (early and late dosage). Comparisons of IL-12 and PBS-treated animals within each group revealed significant effects of IL-12. Early dosage down-regulated IL-5, IL-10, but did not change IL-4 or IFN-y gene expression. Late dosage down-regulated IL-5, up-regulated IL-10 and IFN- y but did not change IL-4 gene expression. The combination of early and late dosage down-regulated IL-4, IL 5, and IL-10 expression, but increased IFN-y gene expression. Administration of IL-12 via mucosal and systemic injections were performed. Comparisons of mucosal and systemic groups revealed that mucosal IL-12 up-regulated IFN-y and IL-10, but did not alter lL-4 and lL-5 gene expression in BAL cells. In contrast, systemic IL-12 inhibited IL-4 and IL-5, but did not alter IL-10 and IFN-y gene expression. These results suggest IL-12 has potent immunomodulatory effects on allergic lung inflammation that depend on the timing and route of IL-12 administration. |
| General note | Submitted to the faculty of the Department of Biology. |
| General note | Advisor: W. James Metzger |
| Dissertation note | M.S. East Carolina University 1997 |
| Bibliography note | Includes bibliographical references (leaves 49-55). |
| Genre/form | Academic theses. |
| Genre/form | Academic theses. |
| Genre/form | Thèses et écrits académiques. |
Availability
| Library | Location | Call Number | Status | Item Actions |
|---|---|---|---|---|
| Joyner | University Archives | ASK AT SPECIAL COLLECTIONS DESK | ✔ Available | Request Material |
| Electronic Resources | Access Content Online | ✔ Available |