In medicine, the
search for the cause of a disease has been critical to understanding the nature
of the disorder and an important step towards the discovery of effective
therapies and prevention. The search for a cause is more difficult than it may
seem at first. For example, even if we find the mechanism by which the disease
progresses, the questions would be: What started the process; then, if we have
found the factors that initiated the process that will lead to questions as to
what happened to this person, and at this very moment. The answer to research
questions often raises more questions and that is how research progresses.
Communication between the immune system and the Central nervous system (CNS),
essential for maintaining homeostasis, is exemplified by cross-talk between
glia and neurons. While actively microglia cells are modulated by neurons in
the healthy brain, little is known about the cross-talk between
oligodendrocytes and neurons. Oligodendrocytes, the myelin-forming cells in the
CNS, are essential for the propagation of potentials action along axons, and
additionally they serve to support neurons by neurotropic factors. In
demyelinating diseases, such as multiple sclerosis, oligodendrocytes are
thought to be the victims. Also they have strong immune functions, express a
wide variety of innate immune receptors, produce and respond to the chemokines
and cytokines and modulate immune responses. In Addition, they elicit responses
that cause progressive neurodegeneration. Under certain circumstances cells
cross the blood brain barrier and reach the parenchyma, activating a cascade of
events culminating in an inflammatory lesion and demyelization. The main
participants of these attacks are the CD4+T cells, antigen presenting glia
(microglia and astrocytes), macrophages and B cells. On the other hand further
evidence support that the beginning of autoimmune response is initiated within
the CNS; we should consider other theories to explain not only multiple
sclerosis as an autoimmune disease, and that starts outside the central nervous
system. There is an intimate relationship that we must pay more attention in
our research: The dialogue neuron-glia; the cross-talk between oligodendroglia,
microglia and neuron help us to uncover novel pathways in the brain.
Author (s) Details
Genaro Gabriel Ortiz
Department of Philosophical and Methodological Disciplines, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, Mexico and Department of Neurology, High Specialty Medical Unit, Western National Medical Center, Mexican Institute of Social Security, Guadalajara, Jalisco, Mexico.
Fermín P. Pacheco-Moisés,
Department of Chemistry, University Center of Exact Sciences and Engineering, University of Guadalajara, Guadalajara, Jalisco, Mexico.
Blanca M. Torres-Mendoza, Department of Philosophical and Methodological Disciplines, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, Mexico and Department of Neurology, High Specialty Medical Unit, Western National Medical Center, Mexican Institute of Social Security, Guadalajara, Jalisco, Mexico.
Fermín P. Pacheco-Moisés,
Department of Chemistry, University Center of Exact Sciences and Engineering, University of Guadalajara, Guadalajara, Jalisco, Mexico.
Department of Philosophical and Methodological Disciplines, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, Mexico and Division of Neurosciences, Western Biomedical Research Center, Mexican Institute of Social Security, Guadalajara, Jalisco, Mexico.
Luis Javier Flores-Alvarado
Department of Biochemistry, University Center of Exact Sciences and Engineering, University of Guadalajara, Guadalajara, Jalisco, Mexico.
Mario A. Mireles- Ramírez
Department of Neurology, High Specialty Medical Unit, Western National Medical Center, Mexican Institute of Social Security, Guadalajara, Jalisco, Mexico.
Daniela L. Delgado-Lara
Department of Philosophical and Methodological Disciplines, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, Mexico.
View Book :- http://bp.bookpi.org/index.php/bpi/catalog/book/195
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