The present application proposes to explore the role of proinflammatory cytokines in the brain. The investigators contend that although a great deal of knowledge regarding the role of proinflammatory cytokines in cachexia exists, there has been little investigation into systemic effects of CNS produced or administered cytokine. The investigator's working hypothesis is that a major component of the wasting of AIDS is caused directly by cytokines produced within the CNS. The studies proposed contain three objectives: 1) to compare the wasting properties of the three proinflammatory cytokines (TNF alpha, IL-1 beta and IL-6) injected into the lateral ventricle of the brain; 2) to identify and localize the receptors for TNF, IL-1 and IL-6 in the brain responsible for the cachexia; and 3) to employ novel approaches to block cytokine induced wasting by administering to the CNS cytokine antagonists. In this manner, the investigators state that they will address critically important, but as yet relatively unexplored area in the pathogenesis of wasting by carefully defining the role of cytokines and their receptors in the CNS.

Agency
National Institute of Health (NIH)
Institute
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Type
Research Project (R01)
Project #
5R01DK049311-04
Application #
2518447
Study Section
Diabetes, Endocrinology and Metabolic Diseases B Subcommittee (DDK)
Program Officer
Smith, Philip F
Project Start
1994-09-30
Project End
1999-08-31
Budget Start
1997-09-05
Budget End
1998-08-31
Support Year
4
Fiscal Year
1997
Total Cost
Indirect Cost
Name
University of Illinois Urbana-Champaign
Department
Veterinary Sciences
Type
Schools of Earth Sciences/Natur
DUNS #
041544081
City
Champaign
State
IL
Country
United States
Zip Code
61820
Finck, Brian N; Johnson, Rodney W (2002) Anti-inflammatory agents inhibit the induction of leptin by tumor necrosis factor-alpha. Am J Physiol Regul Integr Comp Physiol 282:R1429-35
Dantzer, R (2001) Cytokine-induced sickness behavior: where do we stand? Brain Behav Immun 15:7-24
Dantzer, R (2001) Cytokine-induced sickness behavior: mechanisms and implications. Ann N Y Acad Sci 933:222-34
Schacher, D H; VanHoy, R W; Liu, Q et al. (2000) Developmental expression of insulin receptor substrate-2 during dimethylsulfoxide-induced differentiation of human HL-60 cells. J Immunol 164:113-20
Venters, H D; Dantzer, R; Kelley, K W (2000) A new concept in neurodegeneration: TNFalpha is a silencer of survival signals. Trends Neurosci 23:175-80
Finck, B N; Johnson, R W (2000) Tumor necrosis factor (TNF)-alpha induces leptin production through the p55 TNF receptor. Am J Physiol Regul Integr Comp Physiol 278:R537-43
Finck, B N; Johnson, R W (2000) Tumor necrosis factor-alpha regulates secretion of the adipocyte-derived cytokine, leptin. Microsc Res Tech 50:209-15
Minshall, C; Arkins, S; Dantzer, R et al. (1999) Phosphatidylinositol 3'-kinase, but not S6-kinase, is required for insulin-like growth factor-I and IL-4 to maintain expression of Bcl-2 and promote survival of myeloid progenitors. J Immunol 162:4542-9
Dantzer, R; Aubert, A; Bluthe, R M et al. (1999) Mechanisms of the behavioural effects of cytokines. Adv Exp Med Biol 461:83-105
Liu, Q; VanHoy, R W; Zhou, J H et al. (1999) Elevated cyclin E levels, inactive retinoblastoma protein, and suppression of the p27(KIP1) inhibitor characterize early development of promyeloid cells into macrophages. Mol Cell Biol 19:6229-39

Showing the most recent 10 out of 38 publications