Humoral Immunologic Studies in Cerebrospinal Fluid.- A New Strategy for the Study of Intrathecal Immunity.- Immunological Findings in the CSF of HIV-1 Infected Patients.- Disease Duration, Relapse Rate and Clinical Course in Multiple Sclerosis. Relation to IgG Production within the Blood-brain Barrier.- On the Intrathecal Synthesis of Immunoglobulins: Detection of BSF-1/IL-6 in CSF.- Cell Studies.- B-Cell Response Evaluated at Cellular Level in CSF and Blood in Multiple Sclerosis and Controls.- Antioligodendrocyte Autoreactive T Cells.- Imbalance of CSF Lymphocyte Subsets in Multiple Sclerosis.- Functional Characteristics and Phenotypic Markers of T Lymphocyte Clones from CSF in Multiple Sclerosis.- Multiple Sclerosis: Lymphocyte Responses to CNS Antigens.- Immune Functions of Glia.- Immunoregulation in the Central Nervous System: Detection of Cytokines in CSF.- Immunocompetent-like Cells in Human Fetal Brain Cultures.- Role of Astroglial Cells in Experimental Allergic Encephalomyelitis.- Spontaneous Expression of Ia Antigen (HLA-DR) in Cultured Cells of Human Fetal Brain at Different Stages of Gestation.- Expression of Ia Antigen in the Course of Acute and Relapsing Experimental Allergic Encephalomyelitis in the Lewis Rat.- Central Nervous System Diseases and the Immune System.- The Use of the Polymerase Chain Reaction in the Search for a Persistent Virus in Multiple Sclerosis: HTLV-1.- Immunological Parameters in Subacute Sclerosing Panencephalitis and the Effect of Intraventricular Interferon.- Possible Implications of the Cellular Component of the Immune System in the Pathogenesis of Unconventional Slow Virus Infections.- Intrathecal Immune Response in Human Immunodeficiency Virus Infection.- Compartmentalization of B Cell Response to CSF in Lyme Disease with Neurological Manifestations.- Author Index.