Cytokines Effects on Learning and Memory

  • John M. Petitto
  • Martin J. Repetto
  • Zhi Huang
  • Ray D. BeckJr.
  • David A. Hartemink
Part of the Neurobiological Foundation of Aberrant Behaviors book series (NFAB, volume 7)

Abstract

One of the earliest observations suggesting that cytokines could influence cognitive function in humans came from cancer studies where IL-2 immunotherapy was used to treat some types of neoplasias. Treatment with this pivotal immunoregulatory cytokine induced prominent, untoward neuropsychiatric side effects with patients exhibiting cognitive dysfunction (1,2). Seminal basic studies showed that peripheral immunization led to activation of hypothalamic neurons, and also demonstrated that lymphocytes had the capacity to produce neuropeptides (for reviews see 3,4). This sparked considerable growth in this area of research, and it is now well established that cytokines can communicate with endocrine and brain cells. Just as researchers were surprised several decades ago to discover that digestive peptides such as CCK and VIP were in the brain, cytokines and their receptors once believed to be derived solely from lymphoid cells have been identified in normal brain. They function as neuromodulators and neurotrophic factors, as well as mediators of immune-like responses involved in CNS pathology. As described in subsequent sections of the chapter, in the case of IL-2, a number of basic investigations have shown that this cytokine can modify various neurobiological processes associated with learning and memory.

Keywords

Migration Toxicity Schizophrenia Interferon Choline 

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Copyright information

© Springer Science+Business Media Dordrecht 2003

Authors and Affiliations

  • John M. Petitto
    • 1
  • Martin J. Repetto
    • 1
  • Zhi Huang
    • 1
  • Ray D. BeckJr.
    • 1
  • David A. Hartemink
    • 1
  1. 1.McKnight Brain InstituteUniversity of Florida, College of MedicineGainesvilleUSA

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