[Frontiers in Bioscience 9, 8-23, January 1, 2004]

AP-1 TARGETS IN THE BRAIN

Marcin Rylski 1,2 and Leszek Kaczmarek 1

1 Laboratory of Molecular Neurobiology, The Nencki Institute, 02-093 Warsaw, Pasteura 3, Poland, 2 Department of Genetics, Faculty of Biology, University of Warmia and Mazury, Olsztyn 10-719, ul. Plac Lodzki 3, Poland

TABLE OF CONTENTS

1. Abstract
2. Introduction
3. AP-1 as a transcription factor
4. Defining AP-1-driven gene expression in the brain: technical considerations
5. Putative AP-1 target genes
5.1. Genes encoding the transmembrane and extracellular proteins
5.1.1. Tissue inhibitor of metalloproteinases-1 (timp-1)
5.1.2. Growth-associated protein 43 (GAP-43, B50, neuromodulin, F1, PP46)
5.1.3. Angiotensin II type 1 receptor (AT1R, AGTR1, AT1)
5.1.4. Glutamate receptor 2 (GRIA2, GluR2, GluRB)
5.1.5. Gonadotropin-releasing hormone receptor (GnRHR)
5.2. Genes encoding the neuropeptides and neurotrasmitters
5.2.1. Follicle-stimulating hormone-beta (FSHbeta)
5.2.2. Corticotrophin-releasing hormone (CRH, CRF)
5.2.3. Arginine vasopressin (AVP, ADH)
5.2.4. Preproenkephalin (PENK)
5.2.5. Preprodynorphin (PDYN)
5.2.6. Tyrosine hydroxylase (TH, TYH)
5.3. Genes encoding the neurotrophins, and cytokines
5.3.1. Fas ligand
5.3.2. Nerve growth factor (NGF)
5.3.3. Tumor necrosis factor alpha (TNF-alpha)
5.3.4. Monocyte chemoattractant protein-1 (MCP-1)
5.4. Other genes
6. Perspective
7. Acknowledgement
8. References

1. ABSTRACT

Activator protein-1 (AP-1) is a transcription factor involved in many aspects of the brain physiology and pathophysiology. In spite of strong engagement in a transcriptional regulation of the brain gene expression, only a few, if any, downstream AP-1 targets have unequivocally been identified so far. In the review we discuss only the best characterized AP-1 target genes in the brain, and we highlight the shortages of our understanding of AP-1 action in the central nervous system as well as indicate what could be done to ameliorate the situation.